Claims:1. A device (106) for connectors soldered onto interface of printed circuit board assembly, the device comprising:
a single body (108) with a flange that is inserted between the connectors (104), the connectors (104) are arranged in rows and columns parallel to a wall of an enclosure (100) of the printed circuit board assembly (102), the connectors (104) are assembled on confined spaces with limited access,
wherein the single body with flange adapted to arrest rotation of the connectors assembled onto the PCB assembly and avoids twisting of pins during tightening of nuts of the connectors.
2. The device as claimed in claim 1, wherein spanner (112) is used to tighten the nuts of the connector (104) to recommended torque values.
3. The device as claimed in claim 1, wherein vertical edges of the single body (108) are spaced at a predefined distance between adjacent connectors (104) across flat dimensions in the PCB assembly (102).
4. The device as claimed in claim 1, wherein the device (106) of different size and shape creates a wedging action between the connectors (104) arranged in rows and columns.
5. The device as claimed in claim 1, wherein said single body (108) is inserted between connectors (104) that are arranged in any or a combination of single column and single row with the connectors of the same shell size.
6. The device as claimed in claim 1, wherein said single body (108) is inserted between connectors (104) that are arranged in any or a combination of single column and multiple rows with connectors of different shell sizes in ascending order.
7. The device as claimed in claim 1, wherein said single body (108) is inserted between connectors (104) that are arranged in any or a combination of multiple columns, single columns and multiple rows.
8. The device as claimed in claim 1, wherein said single body (108) is inserted between connectors (104) that are arranged in any or a combination of multiple columns, single row and multiple rows in offset fashion having the same shell size.
9. The device as claimed in claim 1, wherein said single body (108) is inserted between connectors (104) that are arranged in any or a combination of multiple columns, single row and multiple rows in offset fashion having different shell size
10. The device as claimed in claim 1, wherein said connectors (104) are Jamnut connectors and any combination thereof.
, Description:TECHNICAL FIELD
[0001] The present disclosure relates, in general, to electronic enclosures, and more specifically, relates to a single body support tool for jam nut connector assembly.

BACKGROUND
[0002] Jam nut connectors are widely used in military-grade electronic enclosures for transmission of signal, power and the like. The increasing complexity of electronic circuits and miniaturisation has led to the development of printed circuit board (PCB) tailed jam nut connectors, which are directly soldered onto interface PCBs. Due to constrain in space available, multiple connectors are mounted onto the PCBs. The jam nut connector broadly consists of a connector housing, contact members, contact housing, O-ring and locking nuts. During installation to enclosures, the locking nuts need to be tightened as per the recommended torque value to ensure proper compression of the O-ring, which is mandatory to ensure proper assembly.
[0003] Traditionally the Jam nuts come with a flat cut on the threaded portion which is matched onto the D-cut on the enclosure as per manufacturer recommendations. However, if the tolerances are on the extremes in the connector and the D-cut, the connectors tend to rotate on tightening which in a traditional single row assembly is arrested using a flat spanner or an adjustable wrench spanner held against the connector. In dual row assemblies, there is minimal access for the bottom row connector. Similar is the case with, multi-row and multi-column assemblies where the adjacent connectors are tightly packed and standard spanners cannot be used.
[0004] An example of tool for tightening Jam nut connectors/nuts is recited in a Patent US20100083798 A1, entitled “Adjustable Wrench Structure”. The patent includes a main body, movable body, and an adjusting wheel. The adjusting wheel is adapted to control the movable body to move forwards or backwards with respect to the main body such that movable body and main body are adjusted to form a gap at same end for screwing a nut or bolt. The adjusting wheel of this is located at a rear section of wrench so the user does not have to move his hand forward and backward. The adjusting wheel is fitted on outer side of wrench to allow over size design to screw the nut or bolt easily and effortlessly.
[0005] Another example of tool for tightening Jam nut connectors/nuts is recited in a Patent US20130298736 A1, entitled “Adjustable Nut wrench and a method of Jaw locking”. The patent comprises a handle section and a slide guided element that is pushed by a lever or a spring to a position where abutment surfaces are parallel to two or three of the nut’s sides. A preferred embodiment of the wrench comprises two parallel abutment surfaces which are set to a maximum angle of 60 degrees to the direction of sliding element movement. Another embodiment of the wrench has three abutment surfaces separated by an angle of 60 degrees to another where one of them I sliding. In further embodiments of the wrench the same method, using a moving sloping abutment surface for jaw locking is used.
[0006] Another example of tool for tightening Jam nut connectors/nuts is recited in an EU Patent 0080336A2 titled “Adjustable Wrench”. The patent describes a continuously adjustable wrench suitable for use with a range of nut or bolt head sizes and having a handle which is off- set or angularly disposed with respect to the wrench head. The wrench provides contact with the nut or bolt head at three spaced, opposing points such that the rotational torque imparted thereto is optimized and the strength required for the wrench head for a given torque is reduced. In one embodiment, the wrench head is pivotally disposed with respect to the handle either about a single pivot or a double pivot to drive a cam contact surface on the handle into contact with a confronting surface of the nut or bolt head. In another embodiment, a contact surface is adjustable longitudinally along the handle to be positioned adjacent the nut or bolt head. In a further embodiment, a wrench head is disposed at each end of the handle, and an adjustment screw is provided on the handle for sliding the handle with respect to the wrench heads for continuously adjusting both wrench heads simultaneously. The wrench heads of this embodiment may be either pivotally or non-pivotally disposed with respect to the handle.
[0007] Therefore, it is desired to develop a simple and cost-effective means that arrests rotation of multi-row, multi-column connectors assembled on the PCBs and permits scalability and compatibility with connectors of different shell sizes.

OBJECTS OF THE PRESENT DISCLOSURE
[0008] An object of the present disclosure relates, in general, to electronic enclosures, and more specifically, relates to a single body support tool for jam nut connector assembly.
[0009] Another object of the present disclosure is to provide a device for arresting rotation of multi-row, multi-column jam nut connectors assembled on PCBs from rotating and avoiding twisting of pins during tightening.
[0010] Another object of the present disclosure is to provide a device that permits scalability and compatibility with connectors of different shell sizes.
[0011] Another object of the present disclosure is to provide a device that is scalable and can be configured as per connector positions in the enclosure.
[0012] Yet another object of the present disclosure is to provide a device that is convenient.

SUMMARY
[0013] The present disclosure relates, in general, to electronic enclosures, and more specifically, relates to a single body support tool for jam nut connector assembly. The main objective of the present disclosure is to solve the technical problem as recited above by using a tool for rigid holding during tightening nuts of jam nut connectors assembled onto the PCBs in multiple rows, multiple columns or the combination of both. The present disclosure is convenient for use as this can be inserted into confined spaces and also locked onto the enclosure. The tool in the present disclosure is scalable and can be configured as per connector positions in the enclosure. The present disclosure permits scalability and compatibility with connectors of different shell sizes.
[0014] In an aspect of the present disclosure, a device for connectors soldered onto interface of printed circuit board assembly, the device comprising a single body with flange that is slid down between the connectors, the connectors are arranged in rows and columns parallel to wall of an enclosure of the printed circuit board assembly, the connectors are assembled on confined spaces with limited access, wherein the single body with flange adapted to arrest rotation of the connectors assembled onto the PCB assembly and avoids twisting of pins during tightening of nuts of the connector.
[0015] According to an embodiment, spanner is used to tighten the nuts of the connector to recommended torque values.
[0016] According to an embodiment, vertical edges of the single body are spaced at predefined distance between adjacent connectors across flat dimension in the PCB assembly.
[0017] According to an embodiment, the device of different size and shape creates a wedging action between the connectors arranged in rows and columns.
[0018] According to an embodiment, the single body is inserted between connectors that are arranged in any or a combination of single column and single row with the connectors of same shell size.
[0019] According to an embodiment, the single body is inserted between connectors that are arranged in any or a combination of single column and multiple rows with connectors of different shell size in ascending order.
[0020] According to an embodiment, the single body is inserted between connectors that are arranged in any or a combination of multiple columns, single columns and multiple rows.
[0021] According to an embodiment, the single body is inserted between connectors that are arranged in any or a combination of multiple columns, single row and multiple rows in offset fashion having same shell size.
[0022] According to an embodiment, the single body is inserted between connectors that are arranged in any or a combination of multiple columns, single row and multiple rows in offset fashion having different shell size.
[0023] According to an embodiment, the connectors are Jamnut connectors and any combination thereof.
[0024] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The following drawings form part of the present specification and are included to further illustrate aspects of the present disclosure. The disclosure may be better understood by reference to the drawings in combination with the detailed description of the specific embodiments presented herein.
[0026] FIG. 1A illustrates an exemplary printed circuit board (PCB) assembly with Jam nuts in enclosure, in accordance with an embodiment of the present disclosure.
[0027] FIG. 1B illustrates an exemplary rear view of the enclosure, in accordance with an embodiment of the present disclosure.
[0028] FIG. 1C illustrates the tool for multiple row and multiple column assembly, in accordance with an embodiment of the present disclosure.
[0029] FIG. 1D illustrates the tool for multiple row assembly, in accordance with an embodiment of the present disclosure.
[0030] FIG. 1E illustrates the tool for multiple row and multiple column assembly, in accordance with an embodiment of the present disclosure.
[0031] FIG. 1F illustrates the tool fixed to the enclosure, in accordance with an embodiment of the present disclosure.
[0032] FIG. 1G illustrates tightening of jam nut, in accordance with an embodiment of the present disclosure.
[0033] FIG. 2A illustrates a tool use methodology for multi-row and multi-column assembly, in accordance with an embodiment of the present disclosure.
[0034] FIG. 2B illustrates a locking of tool methodology for multi-row and multi-column assembly, in accordance with an embodiment of the present disclosure.
[0035] FIG. 2C illustrates a tool use methodology for multi-row assembly, in accordance with an embodiment of the present disclosure.
[0036] FIG. 2D illustrates a tool use methodology for multi-row, multi-column and different shell sizes, in accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION
[0037] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[0038] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[0039] The present disclosure relates, in general, to electronic enclosures, and more specifically, relates to a single body support tool for jam nut connector assembly. The device of the present disclosure enables to overcome the limitations of the prior art by providing a tool for arresting rotation of multi-row, multi-column jam nut connectors assembled on the printed circuit board (PCBs) from rotating and avoiding twisting of pins during tightening.
[0040] The present disclosure relates to a tool that can be used for rigid holding during tightening nuts of jam nut connectors assembled onto the PCBs. The tool in the present disclosure can be used for rigid holding during tightening nuts of the jam nut connectors assembled onto PCBs in multiple rows, multiple columns or the combination of both. The tool of the present disclosure can be used for cable ended jam nut connectors. The tool is convenient for use as the tool can be inserted into confined spaces and also locked onto the enclosure. The tool is scalable and can be configured as per connector positions in the enclosure. The description of terms and features related to the present disclosure shall be clear from the embodiments that are illustrated and described; however, the invention is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents of the embodiments are possible within the scope of the present disclosure. Additionally, the invention can include other embodiments that are within the scope of the claims but are not described in detail with respect to the following description.
[0041] FIG. 1A illustrates an exemplary printed circuit board (PCB) assembly with Jam nuts in enclosure, in accordance with an embodiment of the present disclosure.
[0042] Referring to FIG. 1A, printed circuit board (PCB) assembly 102 can include Jam nut connectors 104 that are widely used in military-grade electronic enclosures 100 for transmission of signal, power and the like. The increasing complexity of electronic circuits and miniaturisation has led to the development of PCB tailed Jam Nut connectors, which are directly soldered onto the interface of the PCBs 100 shown in FIG. 1A. Due to constrain in space available, multiple connectors are mounted onto the PCBs. The proposed tool (106-1 to 106-3 (which are collectively referred to as tools 106 and individually referred to as tool 106, herein)) to be used during tightening of the nuts of the connector and arrests the connector rotation avoiding the pin twist.
[0043] FIG. 1B illustrates an exemplary rear view of the enclosure, in accordance with an embodiment of the present disclosure. As depicted in FIG. 1B, the enclosure 100 can include multiple rows and columns of the connectors 104. In an exemplary embodiment, connectors 104 as presented in the example can be four connectors. As can be appreciated, the present disclosure may not be limited to this configuration but may be extended to other configurations.
[0044] In an embodiment, single body support tool 106 (also referred to as device 106, herein) for connectors 104 soldered onto the interface of printed circuit board assembly 102. The device 106 can include a single body (108-1 to 108-3 (which are collectively referred to as single body 108, herein)) shown in FIG. 1C to 1E respectively with a flange that is slid down between the connectors 104. The connectors 104 are arranged in rows and columns parallel to the wall of the enclosure 100 of the printed circuit board assembly 102, the connectors 104 are assembled in confined spaces with limited access. The vertical edges of the single body 108 are spaced at predefined distance between adjacent connectors 104 across flat dimension in the PCB assembly 102.
[0045] The device 106 can be of any suitable shape and size, for example, device 106 can be of T-shape, pi-shape and any combination thereof. The device 106 of different shapes and sizes creates a wedging action between the connectors 104 arranged in rows and columns. The single body 108 with flange adapted to arrest rotation of the connectors 104 assembled onto the PCB assembly and avoids twisting of pins during tightening of nuts of the connectors 104. The spanner 112 shown in FIG. 1G is used to tighten the nuts of the connector to recommended torque values. In an exemplary embodiment, the connectors 104 are Jamnut connectors and any combination thereof.
[0046] In an embodiment, the single body 108 is inserted between connectors 104 that are arranged in any or a combination of single column and single row with connectors 104 of the same shell size. In another embodiment, the single body 108 is inserted between connectors 104 that are arranged in any or a combination of single column and multiple rows with connectors of different shell sizes in ascending order. The shell size of the connector is a cylinder available in suitable sizes.
[0047] FIG. 1C to FIG.1E illustrates schematic view of three different tool options for different combinations i.e., dual row, dual row and dual column and dual row and dual column with different shell sizes. FIG. 1C illustrates tool 106 for multiple rows and multiple column assembly. FIG. 1D illustrates tool 106 for multiple row assembly and FIG. 1E illustrates the tool 106 for multiple rows and multiple column assembly with varying shell size connectors
[0048] In an embodiment, the single body 108 is inserted between connectors 104 that are arranged in any or a combination of multiple columns, single columns and multiple rows. In another embodiment, the single body 108 is inserted between connectors 104 that are arranged in any or a combination of multiple columns, single row and multiple rows in offset fashion having the same shell size. The single body 108 is inserted between connectors that are arranged in any or a combination of multiple columns, single row and multiple rows in offset fashion having different shell sizes.
[0049] FIG. 1F depicts a fixing means 110 to fix the tool 106 to the enclosure 100. For example, the appropriate tool 106 as per the application is slid down in between the connectors 104 parallel to the wall of the enclosure 100. The tool 106 grips the connector 104 and presses it onto the enclosure wall. The tool 106 is then locked in place with fixing means e.g., fastener 110 and the appropriate spanner 112/ socket are to be used to tighten the nuts to recommended torque values. FIG. 1G depicts a jam nut tightened using the spanner 112/socket to the enclosure 100.
[0050] The embodiments of the present disclosure described above provide several advantages. The device 100 of the present disclosure arrest rotation of multi-rows, multi-columns jam nut connectors assembled on PCBs from rotating and avoiding twisting of pins during tightening. The device 100 permits scalability and compatibility with connectors of different shell sizes. The device 100 is scalable and can be configured as per connector positions in the enclosure and is convenient.
[0051] FIG. 2A illustrates a tool use methodology for multi-row and multi-column assembly, in accordance with an embodiment of the present disclosure. The tool 106 for multi-row and multi-column is slid down in between the connectors 104 parallel to the wall of the enclosure 100.
[0052] The tool 106 functions by creating wedging action between the connectors 104 or against the connector end flange. The tool 106 is then locked in place with fastener 110 and the appropriate spanner/ socket 112 are to be used to tighten the nuts to recommended torque values as shown in FIG. 2B.
[0053] FIG. 2C illustrates a tool use methodology for multi-row assembly, in accordance with an embodiment of the present disclosure. The tool 106 for multi-row is slid down in between the connectors 104 parallel to the wall of the enclosure 100. The tool 106 is then locked in place with fastener 110. The tendency of free rotation is arrested by the tool causing a counter torque.
[0054] FIG. 2D illustrates a tool use methodology for multi-row, multi-column and different shell sizes, in accordance with an embodiment of the present disclosure. The tool 106 for multi-row, multi-column with different shell sizes is slid down in between the connectors 104 parallel to the wall of the enclosure 100. The tool 106 is then locked in place with fastener 110.
[0055] It will be apparent to those skilled in the art that the device 100 of the disclosure may be provided using some or all of the mentioned features and components without departing from the scope of the present disclosure. While various embodiments of the present disclosure have been illustrated and described herein, it will be clear that the disclosure is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled in the art, without departing from the spirit and scope of the disclosure, as described in the claims.

ADVANTAGES OF THE PRESENT DISCLOSURE
[0056] The present disclosure provides a device for arresting rotation of multi-row, multi-column jam nut connectors assembled on PCBs from rotating and avoiding twisting of pins during tightening.
[0057] The present disclosure provides a device that permits scalability and compatibility with connectors of different shell sizes.
[0058] The present disclosure provides a device that is scalable and can be configured as per connector positions in the enclosure.
[0059] The present disclosure provides a convenient device.