CLIAMS:1) A speed sensor device for use in a vehicle, said speed sensor device comprising:
• a speed sensor for sensing speed of a wheel of the vehicle;
• a cable having one end connected to said speed sensor; and
• a housing for potting and fixing there-within said speed sensor and said one end of said cable.

2) The speed sensor device as claimed in claim 1, further comprises a printed circuit board (PCB) for supporting and communicably connecting said speed sensor and said one end of said cable.

3) The speed sensor device as claimed in claim 1, wherein said housing is configured to receive and affix said speed sensor and said portion of cable.

4) The speed sensor device as claimed in claim 1, wherein said housing has at least one stopper for affixing said speed sensor device or element at its desired location and said portion of cable there-within.

5) The speed sensor device as claimed in claim 1, wherein potting resin is provided within said housing to fix with said speed sensor and said portion of cable.

6) The speed sensor device as claimed in claim 5, wherein said potting is an epoxy resin potting.

7) A method for assembling a speed sensor device for use in a vehicle comprising:
• connecting a speed sensor element or device to one end of a cable;
• locating said connected speed sensor and said cable in a housing;
• potting said speed sensor and end of said cable located in said housing; and
• fixing said housing on said vehicle.

8) The method for assembling said speed sensor device as claimed in claim 7, wherein said connecting of said speed sensor device or element with said one end of said cable is performed by soldering.

9) The method for assembling said speed sensor device as claimed in claim 7, wherein said potting is achieved with the help of a epoxy resin.

10) The method for assembling said speed sensor device as claimed in claim 7, which further comprises connecting said speed sensor and said one end of said cable to a printed circuit board (PCB), locating said sensor end of said cable and said PCB in the housing, potting the components in said housing and fixing said housing on said vehicle. ,TagSPECI:FIELD

The present disclosure relates to the field of a sensor device used in vehicles.

BACKGROUND

Speed sensors are used in many applications one of which is an anti-lock braking system (ABS) of a vehicle. In the anti-lock braking system (ABS) of the vehicle, a conventional speed sensor senses/detects the change in speed of a wheel at the time of braking and accordingly actuates a system for reducing the speed of wheel or adjusting it for maintaining tractive contact of the wheel with the road and thereby preventing locking up of the wheel and thereby avoiding uncontrolled skidding of the vehicle which may leads to an accident.

A conventional speed sensor device for sensing the speed of the wheel of a vehicle includes a speed sensor (i.e. magnetic transducer), a cable, an H-terminal, a holder and a housing. The one end of the cable is connected to the speed sensor through the H-terminal. The holder receives the assembled speed sensor, the portion of cable and the H-terminal. The housing encapsulates the holder for providing insulation.

The method for assembling a conventional speed sensor device includes resistance welding of the speed sensor with the H-terminal followed by crimping of the cable on the H-terminal. Two molded components are required: (i) a holder for holding the cable to the H-terminal and packing the assembly of the H-terminal with the speed sensor and the cable and (ii) a housing, that receives the holder, which has provisions for mounting the housing on the vehicle in the vicinity of a wheel. This increases the overall cost of the speed sensor device.
Also, the assembling of a conventional speed sensor device requires processes like resistance welding and crimping which is cost intensive and requires comparatively more time for assembling and also makes the process complex which reduces productivity.

In an alternative embodiment of a conventional of a speed sensor, a lead is used instead of the H-terminal for connecting a cable to the speed sensor. However, the use of the lead also requires the process of resistance welding for connecting the speed sensor to the power cable and also requires the same two molded components.

Hence, there is felt a need for a speed sensor device which will overcome the above mentioned issues.
OBJECTS
Some of the objects of the system of the present disclosure, which at least one embodiment herein satisfies, are as follows:
An object of the present disclosure is to provide a speed sensor device that can be assembled with comparatively less elements.
Another object of the present disclosure is to provide a speed sensor device that is easy to assemble without any complex processes.
Another object of the present disclosure is to provide a speed sensing device and a method for assembling the speed sensor device that requires comparatively less time to assemble.
Another object of the present disclosure is to provide a cost-effective speed sensing device and a method for assembling the speed sensor device.
Other objects and advantages of the present disclosure will be more apparent from the following description when read in conjunction with the accompanying figures, which are not intended to limit the scope of the present disclosure.

SUMMARY

The present disclosure discloses a speed sensor device for use in a vehicle and a method for assembling the speed sensor device. The speed sensor device comprises a speed sensor, a cable and a housing. The speed sensor is used for sensing speed of a wheel of the vehicle. The cable has one end which is connected to the speed sensor. The housing is used for fixing the speed sensor and to one end of the cable. The sensor and the one end of the cable are potted in the housing.

A method for assembling a speed sensor device for use in a vehicle is also disclosed. The method comprises connecting a speed sensor to one end of a cable, fixing the connected speed sensor and the cable in a housing, potting the sensor and cable end in the housing and affixing the housing on the vehicle.

BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS

The speed sensor device and method for assembling the speed sensor device of the present disclosure will now be described with the help of accompanying drawings, in which:
Figure 1 illustrates a perspective view of a speed sensing element whose terminals are connected to a cable , in accordance with one embodiment of the present disclosure;

Figure 2 illustrates a perspective view of the speed sensing element whose terminals are specially preformed in accordance with one embodiment of the present disclosure;

Figure 3 illustrates a perspective view of the cable for the speed sensor device of Figure 1;

Figure 4a illustrates a perspective view of a housing of the speed sensor device of Figure 1, in accordance with one embodiment of the present disclosure;

Figure 4b illustrates a perspective view of another housing of the speed sensor device of Figure 1, in accordance with another embodiment of the present disclosure;

Figure 5a illustrates a perspective view of a speed sensor device, in accordance with another embodiment of the present disclosure;

Figure 5b illustrates a perspective view of a printed circuit board (PCB) of the speed sensing device of Figure 5a;

Figure 5c illustrates a perspective view of the printed circuit board of Figure 5b assembled with the speed sensing element of Figure 2 and the cable of Figure 3; and

Figure 5d illustrates a sectional view of the speed sensor device of Figure 5a, in which the components including the PCB shown in Fig. 5b are potted.

DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS

Various embodiment of a speed sensing device for use in vehicles and a method of assembling the sensing device of the present disclosure will now be described in detail with reference to the accompanying drawings. The embodiments do not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.

The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The following description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

The present disclosure discloses a speed sensing device for use in vehicles. The speed sensing device has comparatively less elements and hence requires comparatively less time to assemble and increase in manufacturing productivity. Also, the method for assembling the speed sensing device is simple and easy does not involve cost intensive complex processes.
The present disclosure discloses the speed sensing device 100 and the method of assembling the elements of the speed sensing device 100. The speed sensor device 100 is used in sensing the speed of a wheel (not illustrated in Figures) of a vehicle (not illustrated in Figures). More specifically, the speed sensor device 100 can be used in an anti-lock braking system (ABS) (not illustrated in Figures) of the vehicle.

In accordance with one embodiment of the present disclosure, the speed sensor device for use in a vehicle (not illustrated in Figures) comprises a speed sensor 10, a cable 20 and a housing 30a or 30b. Figure 1 illustrates an assembled view of the speed sensor 10 and the cable 20. Figure 2 illustrates the speed sensor 10. The speed sensor 10 is used for sensing the speed of the wheel of the vehicle. Figure 3 illustrates the cable 20. The cable 20 has one end 20a connected to the speed sensor 10 and another end connected to a control system (not illustrated in Figures) i.e. a controller of the anti-lock braking system (ABS). Figure 4a and Figure 4b illustrate the housing 30a and 30b. The housing 30a or 30b is used for securely holding the speed sensor 10 and a portion 20b of the cable 20 bearing the one end 20a. Typically, the housing 30a or 30b is configured to receive the speed sensor 10 and a portion 20b of the cable 20. In one embodiment, the housing 30a or 30b has at least one stopper (not illustrated in Figures) which securely holds the speed sensor 10 and the portion 20b of the cable 20.

Further, the housing 30a or 30b which is equipped with the speed sensor 10 and the portion 20b of the cable 20 is potted 50, with epoxy potting, which protects the speed sensor 10 and the portion 20b of the cable 20 from moisture and corrosion and also provides resistance to shocks and vibrations. The housing also has the arrangement of fitment on vehicle.

The method for assembling the elements of the speed sensor device 100 to form the speed sensor device 100 is disclosed. The speed senor 10 is connected to the one end 20a of the cable 20. Typically, the connection of the speed senor 10 and the one end 20a of the r cable 20 is performed by soldering. Then the assembled speed sensor 10 and the cable 20 is inserted and fixed in the housing which has a stopper to locate the speed sensor device at desired location 30a or 30b. Epoxy resin 50 is in liquid form is poured in the housing 30a or 30b over the assembled speed sensor 10 and the cable 20 disposed within the housing and allowed to cure for a predetermined time to allow the epoxy resin to harden and form the epoxy resin mass 50. The housing 30a or 30b is then securely mounted on the vehicle in the vicinity of the wheel for which speed sensing is to be performed.

In accordance with another embodiment of the present disclosure and as illustrated in Figure 5a to Figure 5d, the speed sensing device 100 comprises a speed sensor 10, a cable 20, a printed circuit board (PCB) 40 shown in Fig. 5b and a housing 30a or 30b. The printed circuit board (PCB) 40 provides connection of the speed sensor 10 and the cable 20 as illustrated in Figure 5c. The speed sensor 10 is used for sensing the speed of the wheel of the vehicle and is connected to the printed circuit board (PCB) 40. The cable 20 has one end 20a connected to the printed circuit board (PCB) 40 and another end (not illustrated in Figures) connected to the control system (not illustrated in Figures) i.e. the controller of the anti-lock braking system (ABS). The housing 30a or 30b is used for securely holding the printed circuit board (PCB) 40 with the speed sensor 10 and the cable 20. Typically, the housing 30a or 30b is configured to receive the printed circuit board (PCB) 40 with the speed sensor 10 and the cable 20. In one embodiment, the housing 30a or 30b has at least one fixture (not illustrated in Figures) which securely holds the printed circuit board (PCB) 40.

Further, as seen in Fig. 5d, within the housing 30a or 30b, the speed sensor 10 and the portion 20b of the cable 20 is potted 50, with an epoxy potting, which protects the printed circuit board (PCB) 40, the speed sensor 10 and the power cable 20 from moisture and corrosion and also provides resistance to shocks and vibrations.

The method for assembling the speed sensor device 100 is disclosed. Initially, the speed senor 10 is connected to the printed circuit board (PCB) 40 and the one end 20a of the cable 20 is also connected to the printed circuit board (PCB) 40. Typically, the connection of the speed senor 10 and the one end 20a of the cable 20 to the printed circuit board (PCB) 40 is performed by soldering. Then the assembly of the printed circuit board (PCB) 40, the speed sensor 10 and the cable 20 is inserted and fixed in the housing 30a or 30b. Epoxy resin is filled in the housing 30a or 30b over the assembly of the printed circuit board (PCB) 40, the speed sensor 10 and the cable 20 disposed within the housing 30a or 30b thereby potting it. The housing 30a or 30b is then securely mounted on the vehicle in the vicinity of the wheel for which speed sensing is to be performed.

The speed sensor devices of both the afore-mentioned embodiment of the present disclosure does not have an H-terminal or a lead as required in conventional speed sensor devices. Also, the speed sensor device does not have two molded components of which one is a holder for holding the assembly of the speed sensor, the H-terminal or the lead and the cable and another for holding the holder. Hence, the speed sensor device of both the afore-mentioned embodiment of the present disclosure has comparatively less number of elements and hence requires comparatively less time to assemble and increase in manufacturing productivity.

The method for assembling the elements of the speed sensor devices of the both the aforementioned embodiment of the present disclosure to form the respective speed sensor devices of the present disclosure does not require complex processes such as resistive welding and crimping as required conventionally and hence enables saving of the time and cost associated with such complex processes.

TECHNICAL ADVANCEMENTS

The technical advancements offered by the present disclosure include the realization of:
• a speed sensor device and a method for assembling the speed sensor device that requires comparatively less number elements;
• a speed sensor device and a method for assembling the speed sensor device that is easy to assemble without any complex processes;
• a speed sensing device and a method for assembling the speed sensor device that is requires comparatively less time to assemble; and
• a cost-effective speed sensing device and a method for assembling the speed sensor device.

Throughout this specification the word “comprise”, or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.

The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.

The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.