Automobile seat position sensor

Abstract

The utility model relates to the technical field of automobile sensors, in particular to an automobile seat position sensor. An automobile seat position sensor comprises a shell of an integrated structure, the shell is provided with an installation groove, a supporting frame is arranged in the installation groove, a magnet is arranged on the supporting frame, a Hall chip is installed on the magnet, the Hall chip is provided with two pins, and the pins are connected with the Hall chip. The pin bypasses the top of the support frame and is in contact with a conducting strip fixedly arranged at the front part of the support frame, the conducting strip is connected with a wire harness, a plurality of buckles for arranging the wire harness are arranged on the shell below the mounting groove, and a connecting part of the fixing clamp is arranged on the shell below the side of the mounting groove. According to the utility model, a PCB (Printed Circuit Board) is omitted, the product structure is optimized, the assembly process of the product on a seat assembly is reduced, and the assembly cost is reduced; a plurality of buckles for arranging wire harnesses are arranged on the shell below the mounting groove, so that subsequent maintenance is facilitated; and the housing with an integrated structure is arranged, so that the firmness is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle sensors, in particular to a vehicle seat position sensor. Background Art

[0002] Car seat position sensors play an important role in the adjustment system of car seats. Seat position sensors are used to detect the current position of the seat and transmit this information to the vehicle's control system. This is essential for electric seat adjustment systems, which allow precise control of the seat position. In addition to being used for seat position adjustment, seat position sensors may also be associated with safety systems such as airbag deployment and seat belt pretensioner activation, which need to know the seat occupancy status and the position of the passenger.

[0003] Current seat position sensors have the following problems:

[0004] 1. The magnet and the Hall chip are mounted on different products, such as the sensor is mounted on the seat rail, and the magnet is mounted on the guide rail; or a metal sheet is added to the guide rail to achieve a change in magnetic induction intensity;

[0005] 2. The position sensor has a complex structure and requires the addition of a PCB board to enable the sensor to complete signal transmission, which results in high structural cost.

[0006] In addition, when existing automobile seat position sensors are used in conjunction with the vehicle's safety system, some of them may shift position in the event of a collision, and may fail to provide timely and accurate occupant position information, causing certain injuries to the passengers. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a vehicle seat position sensor.

[0008] The technical solution adopted by the utility model to solve its technical problems is: a car seat position sensor, including a shell of an integral structure, the shell having a mounting groove, a support frame arranged in the mounting groove, a magnet and a Hall chip arranged on the support frame, the Hall chip having two pins, the pins bypassing the top of the support frame and contacting a conductive sheet fixedly arranged on the front part of the support frame, the conductive sheet being connected to a wiring harness, a plurality of buckles for arranging the wiring harness are arranged on the shell below the mounting groove, and a connecting portion of a fixing clip is arranged on the shell below the side of the mounting groove.

[0009] Furthermore, the support frame is a cubic structure, with a longitudinal notch on its rear side to form a mounting area for the Hall chip, and a convex portion is provided on the upper portion of the front side of the support frame, and the conductive sheet is vertically disposed through the convex portion.

[0010] Furthermore, a longitudinal U-shaped notch is provided on the support frame, and the magnet is placed in the U-shaped notch.

[0011] Furthermore, a lower support block, a side support block and an upper limit block are respectively arranged on the lower side, the left side and the two side edges of the top of the through hole.

[0012] Furthermore, a support block of a limit support frame is arranged in the installation groove, a notch groove for guiding the wire harness is opened on the edge of the bottom surface of the installation groove, and a partition plate for separating two wire harnesses is arranged on the shell below the notch groove.

[0013] Furthermore, the buckle is in an L-shaped structure, and a hole is provided on the shell at a position corresponding to the buckle.

[0014] Furthermore, the connecting portion has a connecting section with a cylindrical structure, a plurality of latching teeth are protruding from the inner wall of the connecting section, and a latching groove is formed between adjacent latching teeth.

[0015] Furthermore, a hook portion is provided obliquely downwardly below the connecting section.

[0016] Furthermore, the fixing clamp includes a frame body, the frame body is provided with a mounting section extending into the connecting section, the mounting section has a mounting strip matched with the slot, and a barb portion connected to the hook portion is provided below the frame body.

[0017] Furthermore, a convex ridge is provided on the outer wall of the mounting strip, and the width of the convex ridge increases from one end to the other end of the frame surface.

[0018] The beneficial effects of the utility model are as follows: the utility model installs the magnet and the conductive sheet by means of insert injection molding, and the magnet and the Hall chip are installed on the same support frame, thereby reducing the assembly process of the product on the seat assembly and reducing the assembly cost; optimizing the product structure, eliminating the PCB board, reducing the product process and reducing the cost of product parts; the pins of the Hall chip bypass the top of the support frame and contact the conductive sheet fixedly arranged at the front of the support frame, so that the installation space is saved; a plurality of buckles for arranging the wiring harness are arranged on the shell below the installation slot, which is convenient for subsequent maintenance; an integrated structure shell is arranged to ensure firmness; a connecting part of a fixing clip is arranged on the shell at the lower side of the installation slot position, avoiding the installation slot while reducing the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is an assembly drawing of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the support frame and its upper components in the utility model.

[0023] Figure 4 yes Figure 3 Assembly drawing of .

[0024] Figure 5 It is a structural schematic diagram of the shell in the utility model.

[0025] Figure 6 It is a structural schematic diagram of the fixing clip in the utility model.

[0026] In the figure: 1. shell, 11. mounting groove, 111. notch groove, 12. buckle, 13. connecting part, 131. connecting section, 132. latch, 133. slot, 134. hook, 14. support block, 15. partition, 2. support frame, 21. longitudinal notch, 211. through hole, 22. convex part, 23. U-shaped notch, 24. lower support block, 25. side support block, 26. upper limit block, 3. magnet, 4. Hall chip, 41. pin, 5. conductive sheet, 6. wiring harness, 7. fixing clip, 71. frame, 711. mounting section, 7111. mounting strip, 71111. convex ridge, 712. barb part, 8. potting glue. DETAILED DESCRIPTION

[0027] The present invention is now further described in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0028] like Figure 1 to Figure 4 As shown, a car seat position sensor includes a housing 1 of an integrated structure, the housing 1 has a mounting groove 11, a support frame 2 is arranged in the mounting groove 11, a magnet 3 and a Hall chip 4 are arranged on the support frame 2, the Hall chip 4 has two pins 41, the pins 41 bypass the top of the support frame 2 and contact a conductive sheet 5 fixedly arranged on the front of the support frame 2, the conductive sheet 5 is connected to a wiring harness 6, the wiring harness 6 has a terminal connected to the conductive sheet 5, a plurality of buckles 12 for arranging the wiring harness 6 are arranged on the housing 1 below the mounting groove 11, a connecting portion 13 of a fixing clip 7 is arranged on the housing 1 at the lower side of the mounting groove 11, and a potting glue 8 is arranged on the opening of the mounting groove 11.

[0029] like Figure 3 and Figure 4As shown, the support frame 2 is a cubic structure, and a longitudinal notch 21 is provided on the rear side surface thereof to form a mounting area for the Hall chip 4. The upper portion of the front side surface of the support frame 2 has a convex portion 22, and the conductive sheet 5 is vertically arranged through the convex portion 22. A longitudinal U-shaped notch 23 is provided on the support frame 2, and the magnet 3 is placed in the U-shaped notch 23. A through hole 211 is provided in the middle of the bottom wall of the longitudinal notch 21, and the pin of the Hall chip 4 passes through the through hole 211 and is connected to the magnet 3. A lower support block 24, a side support block 25 and an upper stop block 26 are respectively provided on the lower, left and top edges of the through hole 211 to limit the Hall chip 4.

[0030] like Figure 5 As shown, a support block 14 of a limiting support frame 2 is provided in the installation groove 11, a notch groove 111 for guiding the wiring harness 6 is provided at the bottom edge of the installation groove 11, and a partition 15 for separating two wiring harnesses 6 is provided on the housing 1 below the notch groove 111. The buckle 12 is an L-shaped structure, and a hole is provided at a position corresponding to the buckle 12 on the housing 1 to play a role in heat dissipation. The connecting portion 13 has a connecting section 131 of a cylindrical structure, and three latch teeth 132 are protruding from the inner wall of the connecting section 131, and a latch groove 133 is formed between adjacent latch teeth 132. A hook portion 134 is provided obliquely downward below the connecting section 131.

[0031] like Figure 6 As shown, the fixing clip 7 includes a frame body 71, a mounting section 711 extending into the connecting section 131 is provided on the frame body 71, the mounting section 711 has a mounting strip 7111 matched with the slot 133, and a barb portion 712 connected with the hook portion 134 is provided below the frame body 71. A convex ridge 71111 is provided on the outer wall of the mounting strip 7111, and the width of the convex ridge 71111 increases from one end to the other end of the surface of the frame body 71, so as to ensure that the mounting section 711 and the inner wall of the connecting section 131 are more closely matched.

[0032] Specific installation steps: first install the components on the support frame 2, and the conductive sheet 5 is molded and injection molded on the protrusion 22 while manufacturing the support frame 2. At the same time, the magnet 3 is also injection molded into the U-shaped notch 23 of the support frame 2, and the Hall chip 4 is inserted into the area surrounded by the lower support block 24, the side support block 25 and the upper limit block 26. At the same time, the two pins 41 of the Hall chip 4 are fixedly connected to the conductive sheet 5; the support frame 2 at this time is inserted into the area surrounded by the support block 14, and the potting glue 8 is filled; the two wiring harnesses 6 pass through the buckle 12 on the shell 1 from bottom to top, reach the partition 15, and enter the two notch grooves 111 respectively, so that the other end of the wiring harness 6 is connected to the conductive sheet 5; finally, the installation section 711 of the fixing clip 7 is extended into the cylinder of the connecting section 131, and the installation strip 7111 cooperates with the card slot 133; at the same time, the hook portion 134 on the connecting portion 13 hooks the barb portion 712 of the fixing clip 7.

[0033] The above-mentioned implementation mode is only for illustrating the technical concept and features of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A car seat position sensor, comprising a housing of an integrated structure, characterized in that: The shell has an installation groove, a support frame is arranged in the installation groove, a magnet and a Hall chip are arranged on the support frame, the Hall chip has two pins, the pins bypass the top of the support frame and contact the conductive sheet fixedly arranged on the front of the support frame, the conductive sheet is connected to the wiring harness, a plurality of buckles for arranging the wiring harness are arranged on the shell below the installation groove, and a connecting part of a fixing clip is arranged on the lower side of the shell at the installation groove position.

2. The vehicle seat position sensor according to claim 1, characterized in that: The support frame is a cubic structure, with a longitudinal notch on its rear side to form a mounting area for the Hall chip, and a convex portion on the upper portion of the front side of the support frame, and the conductive sheet is vertically arranged to penetrate the convex portion.

3. The vehicle seat position sensor according to claim 2, characterized in that: The support frame is provided with a longitudinal U-shaped notch, the magnet is placed in the U-shaped notch, a through hole is provided in the middle of the bottom wall of the longitudinal notch of the support frame, and the pins of the Hall chip pass through the through hole to connect with the magnet.

4. The vehicle seat position sensor according to claim 3, characterized in that: A lower support block, a side support block and an upper limit block are respectively arranged at the lower side, the left side and the two side edges of the top of the through hole.

5. The vehicle seat position sensor according to claim 1, characterized in that: A support block of a position-limiting support frame is arranged in the installation groove, a notch groove for guiding the wire harness is provided at the bottom edge of the installation groove, and a partition plate for separating two wire harnesses is provided on the shell below the notch groove.

6. The vehicle seat position sensor according to claim 1, characterized in that: The buckle is in an L-shaped structure, and a hole is provided on the shell at a position corresponding to the buckle.

7. The vehicle seat position sensor according to claim 1, characterized in that: The connecting portion has a connecting section with a cylindrical structure, and a plurality of latching teeth are protruding from the inner wall of the connecting section, and a latching groove is formed between adjacent latching teeth.

8. The vehicle seat position sensor according to claim 7, characterized in that: A hook portion is arranged obliquely downward below the connecting section.

9. The vehicle seat position sensor according to claim 8, characterized in that: The fixing clamp comprises a frame body, a mounting section extending into the connecting section is arranged on the frame body, the mounting section has a mounting strip matched with the card slot, and a barb part connected with the hook part is arranged under the frame body.

10. The vehicle seat position sensor according to claim 9, characterized in that: The outer wall of the installation strip is provided with a convex ridge, and the width of the convex ridge increases from one end to the other end of the frame surface.

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