Caliper force sensor

Abstract

The utility model relates to a caliper force sensor, which comprises a base, silicon resistors, a PCBA (Printed Circuit Board Assembly), a shell and a wire harness, the base comprises an annular seat body and an annular boss, the annular boss is coaxially arranged on the upper end surface of the annular seat body, the silicon resistors are annularly and uniformly distributed on the annular boss, the PCBA is fixedly arranged on the annular boss, the silicon resistors are electrically connected with the PCBA, and the shell is arranged on the PCBA. An annular boss is arranged on the base, a mounting hole is formed in the upper end face of the annular boss, a positioning column is fixedly arranged in the mounting hole, through holes for the positioning column to penetrate through are formed in the PCBA and the shell, the wire harness is welded to a bonding pad on the PCBA, the shell covers the base, and a wire harness hole for the wire harness to penetrate through is formed in the side face of the shell. The caliper force sensor mounting tool has the advantages that the positioning columns and the positioning grooves are arranged, so that the mounting direction of the caliper force sensor can be quickly determined, and the mounting efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field especially relates to a calliper force sensor. BACKGROUND

[0002] EMB (Electro-Mechanical Brake, mechanical type line control system) does not contain hydraulic device, it relies on brushless motor drive on calliper to produce brake torque, therefore, compared with EHB (Electro-Hydraulic Brake, electronic hydraulic brake system) it has faster response speed.Calliper force sensor is one of indispensable components in EMB, and the existing calliper force sensor is usually disc-shaped, when installing on the vehicle, it is difficult to quickly determine its installation direction, and the production efficiency is affected. SUMMARY

[0003] The utility model mainly solves above -mentioned problem, provides a calliper force sensor with positioning post, can quickly determine the installation direction.

[0004] The utility model discloses a calliper force sensor, including base, silicon resistance, PCBA, shell and wire harness, the base includes annular seat body and annular boss, the annular boss is coaxial and is arranged on the annular seat body upper end surface, the silicon resistance is evenly distributed in the annular boss, the PCBA is fixed and set up on the annular boss, the silicon resistance is electrically connected with PCBA, the annular boss upper end surface is equipped with mounting hole, the mounting hole is fixedly provided with positioning post, the PCBA and shell are equipped with the through -hole that positioning post passes, the wire harness is welded with the solder pad on PCBA, the shell cover is set up on the base, the shell side is equipped with wire harness hole for wire harness to pass.

[0005] As one preferred scheme of the above scheme, the annular seat body inner ring is provided with mounting along, the shell is annular, and the shell cover is arranged on the annular boss, the shell inner ring end surface is in abutment with the mounting along, and the shell outer ring end surface is in abutment with the annular seat body.

[0006] As one preferred scheme of the above scheme, the annular seat body lower end surface is equipped with positioning recess and sealing ring installation groove.

[0007] As one preferred scheme of the above scheme, the annular boss upper end surface is evenly distributed with a plurality of U-shaped groove groups in annular, and the U-shaped groove group is arranged with the silicon resistance.

[0008] As one preferred scheme of the above scheme, the annular boss upper end surface is evenly distributed with a plurality of U-shaped groove groups in annular, and the U-shaped groove group is arranged with the silicon resistance.

[0009] As a preferred embodiment of the above solution, the annular boss has an annular groove on its sidewall.

[0010] As a preferred embodiment of the above solution, the PCBA has a notch corresponding to the silicon resistor area, and the wires connect the silicon resistor and the PCBA through the notch, which is filled with glue.

[0011] As a preferred embodiment of the above solution, the wire harness is fixed to the wire harness hole by silicone.

[0012] The advantages of this utility model are: it is equipped with a positioning post and a positioning groove, which can quickly determine the installation direction of the caliper force sensor and effectively improve the installation efficiency. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the caliper force sensor.

[0014] Fig. 2 This is a schematic diagram of the exploded structure of a caliper force sensor.

[0015] Fig. 3 This is a schematic diagram of the internal structure of a caliper force sensor.

[0016] Fig. 4 This is a top view of the base structure.

[0017] Fig. 5 This is a schematic diagram of the base structure viewed from below.

[0018] 1-Base 2-Outer shell 3-Positioning post 4-Wire harness 5-PCBA 6-Glue 7-Wire 8-Silicon resistor 11-Annular seat 12-Annular boss 111-Mounting edge 112-Positioning groove 113-Sealing ring mounting groove 121-U-shaped groove group 122-Slot 123-Annular groove 124-Mounting hole. Detailed Implementation

[0019] The technical solution of this utility model will be further described below through embodiments and in conjunction with the accompanying drawings.

[0020] Example:

[0021] This embodiment provides a caliper force sensor, such as... Figs. 1 to 5 As shown, the device includes a base 1, a silicon resistor 8, a PCBA 5, a housing 2, and a wire harness 4. The silicon resistor 8 and PCBA 5 are fixedly mounted on the base. The wire harness 4 is soldered to the pads on the PCBA 5. The housing 2 covers the base. The side of the housing 5 has a wire harness hole for the wire harness 4 to pass through. The wire harness 4 is fixed to the wire harness hole by silicone.

[0022] The base 1 comprises a ring-shaped seat body 11 and a ring-shaped boss 12 coaxially arranged on the upper end surface of the ring-shaped seat body 11. An installation ridge 111 is arranged in the inner ring of the ring-shaped seat body 11. The shell 2 is annular, and the shell 2 is arranged on the ring-shaped boss 12, the inner ring end surface of the shell 2 abuts against the installation ridge 111, and the outer ring end surface of the shell 2 abuts against the ring-shaped seat body 11. The lower end surface of the ring-shaped seat body 11 is provided with a positioning groove 112 and a sealing ring mounting groove 113.

[0023] The silicon resistor 8 is arranged in at least four and uniformly distributed in a ring shape. The silicon resistor 8 is sintered on the ring-shaped boss by high-temperature melting glass glue. A plurality of U-shaped groove groups 121 are uniformly distributed in a ring shape on the upper end surface of the ring-shaped boss 12. The U-shaped groove groups 121 are arranged alternately with the silicon resistor 8. The edge of the region corresponding to the silicon resistor 8 on the ring-shaped boss is provided with a slot 122. The side wall of the ring-shaped boss is further provided with a ring-shaped groove 123. The U-shaped groove group 121, the slot 122 and the ring-shaped groove 123 are all used to change the stress distribution of the region where the silicon resistor is located. The upper end surface of the ring-shaped boss 12 is further provided with a mounting hole 124. The mounting hole 124 is fixedly provided with a positioning column 3. The PCBA 5 and the shell 2 are provided with through holes through which the positioning column 5 passes.

[0024] The PCBA 5 is fixedly arranged on the ring-shaped boss 12 by glue. The PCBA 5 is provided with a notch corresponding to the silicon resistor. The lead wire 7 connects the silicon resistor 8 and the PCBA 5 through the notch. The lead wire 7 is an aluminum wire, and there are at least three. The notch is filled with glue 6 for protecting the lead wire 7.

[0025] As a preferred scheme of the above scheme, the PCBA is provided with a notch corresponding to the silicon resistor region. The lead wire connects the silicon resistor and the PCBA through the notch. The notch is filled with glue.

[0026] The caliper force sensor in the embodiment is positioned by arranging the positioning column and the positioning groove on the two surfaces of the sensor, respectively, to position the installation direction of the caliper force sensor, thereby effectively improving the installation efficiency of the caliper force sensor to the vehicle.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A calliper force sensor characterised in that: The application relates to a temperature sensor, which comprises a base, a silicon resistor, a printed circuit board assembly (PCBA), a shell and a wire harness, the base comprises a ring-shaped seat body and a ring-shaped boss, the ring-shaped boss is coaxially arranged on the upper end surface of the ring-shaped seat body, the silicon resistor is uniformly distributed on the ring-shaped boss in a ring shape, the PCBA is fixedly arranged on the ring-shaped boss, the silicon resistor is electrically connected with the PCBA, the upper end surface of the ring-shaped boss is provided with a mounting hole, a positioning column is fixedly arranged in the mounting hole, the PCBA and the shell are provided with through holes for the positioning column to pass through, the wire harness is welded with a bonding pad on the PCBA, the shell is arranged on the base, and the shell is provided with a wire harness hole for the wire harness to pass through.

2. The calliper force sensor of claim 1, wherein: An installation ridge is arranged in the inner ring of the ring-shaped seat body, the shell is in a ring shape, the shell is arranged on the ring-shaped boss, the inner ring end surface of the shell is in abutment with the installation ridge, and the outer ring end surface of the shell is in abutment with the ring-shaped seat body.

3. The caliper force sensor of claim 1, wherein: The lower end surface of the ring-shaped seat body is provided with a positioning groove and a sealing ring mounting groove.

4. The caliper force sensor of claim 1, wherein: A plurality of U-shaped groove groups are uniformly distributed on the upper end surface of the ring-shaped boss in a ring shape, and the U-shaped groove groups are arranged alternately with the silicon resistor.

5. The caliper force sensor of claim 1, wherein: The edge of the region corresponding to the silicon resistor on the ring-shaped boss is provided with a slot.

6. The caliper force sensor of claim 1, wherein: The side wall of the ring-shaped boss is provided with a ring-shaped groove.

7. The caliper force sensor of claim 1, wherein: The PCBA is provided with a notch corresponding to the region of the silicon resistor, a lead wire passes through the notch to connect the silicon resistor and the PCBA, and the notch is filled with glue.

8. The caliper force sensor of claim 1, wherein: The wire harness is fixed with the wire harness hole through silica gel.

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