Chip assembly mounting structure, displacement sensor and brake-by-wire system

Abstract

The utility model relates to the technical field of automobile parts, in particular to a chip assembly mounting structure, a displacement sensor and a brake-by-wire system, which comprises a shell and a circuit board, the circuit board is fixed on the shell, and a Hall chip is mounted on the circuit board; a plurality of mounting grooves are formed in one end of the shell, a plurality of metal inserts are arranged in the shell, one ends of the metal inserts are electrically connected with the circuit board, the other ends of the metal inserts extend into the mounting grooves, compression spring assemblies are arranged in the mounting grooves, one ends of the compression spring assemblies abut against and are electrically connected with the metal inserts, and the other ends of the compression spring assemblies abut against and are electrically connected with the metal inserts. The other end of the compression spring assembly extends out of the mounting groove and is used for abutting against and being electrically connected with a metal contact on the automobile electronic control unit. According to the utility model, the metal insert is directly abutted against and electrically connected with the metal contact on the automobile electronic control unit through the compression spring assembly, so that the stability of the electric connection of the electronic control unit is ensured, the cost is reduced, and the manufacturing difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts, in particular to a chip component mounting structure, a displacement sensor and a wire control braking system. Background Technique

[0002] Traditional vehicles use a vacuum booster to convert the movement of the brake pedal into the output hydraulic pressure of the booster, which directly acts on the brake. The control linearity is poor, it is difficult to accurately control the pedal feel, and the calibration is difficult.

[0003] In the prior art, there is a method of using a displacement sensor to detect the displacement of the master cylinder push rod, and then controlling the braking through an ECU. Specifically, the displacement of the master cylinder push rod is checked by the displacement sensor, and then the metal contacts of the displacement sensor are welded and fixed to the metal contacts of the ECU (electronic controller). The displacement sensor transmits the displacement signal of the master cylinder push rod to the ECU. The ECU, according to the collected position signal of the master cylinder push rod, makes the motor drive the plunger pump to build pressure and transmits the pressure to the brake. Under the control of the ECU, the braking force and the displacement of stepping on the brake pedal are easier to match, and the linearity is excellent. However, this prior art has a complex structure, a high cost, and problems with positioning accuracy and signal transmission. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a chip component mounting structure, a displacement sensor and a wire control braking system to solve the above problems existing in the prior art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: A chip component mounting structure includes a housing and a circuit board. The circuit board is fixed on the housing, and a Hall chip is mounted on the circuit board. One end of the housing is provided with a plurality of mounting grooves, and a plurality of metal inserts are provided in the housing. One end of the metal insert is electrically connected to the circuit board, and the other end of the metal insert extends into the mounting groove. A compression spring assembly is provided in the mounting groove. One end of the compression spring assembly abuts against and is electrically connected to the metal insert, and the other end of the compression spring assembly extends out of the mounting groove for abutting against and being electrically connected to the metal contacts on the automotive electronic control unit.

[0006] The beneficial effect of the utility model is that the metal insert of the utility model directly abuts against and is electrically connected to the metal contacts on the automotive electronic control unit through the compression spring assembly. Under the elastic action of the compression spring assembly itself, the stability of the electrical connection of the electronic control unit is ensured, the welding process is avoided, and the cost is reduced; and the compression spring assembly is integrated onto the housing, reducing the manufacturing difficulty.

[0007] On the basis of the above technical solution, the utility model can also be improved as follows.

[0008] Further, one end of the housing where the installation groove is provided is provided with a spring cover, and the spring cover is provided with limiting holes corresponding to and communicating with the installation grooves one by one. One section of the compression spring assembly extends out from the limiting holes, and the limiting holes limit the compression spring assembly to prevent the compression spring assembly from completely disengaging from the installation groove.

[0009] The beneficial effect of adopting the above further solution is that the setting of the spring cover can limit the compression spring assembly, prevent the compression spring assembly from disengaging from the installation groove, and at the same time facilitate the installation of the compression spring assembly.

[0010] Further, the compression spring assembly includes a first spring close-wound section, a spring compression section, and a second spring close-wound section that are fixedly connected in sequence. The spring compression section is conical. The limiting hole includes a conical hole and a straight through-hole that are communicated in sequence. The large-diameter end of the conical hole communicates with the installation groove, and the small-diameter end of the conical hole communicates with one end of the straight through-hole. The first spring close-wound section is arranged in the installation groove, and one end of the first spring close-wound section abuts against and is electrically connected to the metal insert. The spring compression section is arranged in the conical hole and abuts against the inner wall of the conical hole. The second spring close-wound section is arranged in the straight through-hole and one end extends out of the straight through-hole.

[0011] The beneficial effect of adopting the above further solution is that a spring compression section is arranged in the middle of the compression spring assembly, and the conical hole in the limiting hole limits the spring compression section, thereby preventing the compression spring assembly from disengaging. At the same time, it does not affect the compression of the first spring close-wound section, ensuring that the second spring close-wound section can have a certain pressing force on the metal contact on the electronic control unit, thereby ensuring the stability of the signal electrical connection and ensuring the positioning accuracy.

[0012] Further, the compression spring assembly includes a first compression spring section and a first abutting spring section. The outer diameter of the first compression spring section is greater than the inner diameter of the limiting hole. The first compression spring section is arranged in the installation groove, and one end of the first compression spring section abuts against and is electrically connected to the metal insert. The first abutting spring section is slidably arranged in the limiting hole and one end extends out of the limiting hole. The other end of the first abutting spring section is fixedly connected to the other end of the first compression spring section. The end of the first compression spring section connecting the first abutting spring section abuts against the side wall of the spring cover.

[0013] The beneficial effects of adopting the above further solution are as follows: The outer diameter of the first compression spring segment is larger than the inner diameter of the limiting hole. After the spring cover is installed, the first compression spring segment is restricted to prevent it from disengaging from the installation groove. At the same time, since the first abutting spring segment is slidably arranged in the limiting hole, the elastic force of the first compression spring segment acts on the first abutting spring segment, enabling the first abutting spring segment to have a certain pressing force on the metal contact on the electronic control unit, thereby ensuring the stability of the signal electrical connection and ensuring the positioning accuracy.

[0014] Further, the compression spring assembly includes a second compression spring segment and an abutting column. The abutting column is slidably arranged in the limiting hole. One end of the abutting column extends out of the limiting hole, and a limiting seat is fixedly arranged at the other end of the abutting column. The limiting seat is arranged in the installation groove and abuts against the side surface of the spring cover. The second compression spring segment is arranged in the installation groove. One end of the second compression spring segment abuts against and is electrically connected to the metal insert, and the other end of the second compression spring segment is connected to the limiting seat.

[0015] The beneficial effects of adopting the above further solution are as follows: The second compression spring segment generates an elastic acting force on the limiting seat. The size of the limiting seat is larger than the size of the limiting hole, so that the limiting seat limits the abutting column and the second compression spring segment to prevent the abutting column and the second compression spring segment from disengaging, while ensuring sufficient pressing force to abut against the metal contact on the electronic control unit, ensuring the stability of the signal electrical connection, and ensuring the positioning accuracy.

[0016] Further, the spring cover is snap-connected to the housing.

[0017] The beneficial effects of adopting the above further solution are as follows: The spring cover is snap-connected to the housing, which is convenient for installation and disassembly.

[0018] Further, the housing is provided with an installation position for installing the circuit board. A plurality of positioning posts are arranged at the installation position, and positioning holes corresponding to the positioning posts one by one are arranged on the circuit board. The positioning posts are inserted into the positioning holes.

[0019] The beneficial effects of adopting the above further solution are as follows: The arrangement of the positioning posts and the positioning holes facilitates the installation and positioning of the circuit board. After the positioning posts are hot-melt compressed, the circuit board can be better fixed.

[0020] Further, the circuit board is provided with an installation hole. One end of the metal insert is inserted into the installation hole and is welded to the circuit board after press-fitting.

[0021] The beneficial effects of adopting the above further solution are as follows: Ensure the stability of the connection between the circuit board and the metal insert, and provide an electrical channel for the input and output of the circuit board.

[0022] The present utility model further provides a displacement sensor for solving the above technical problems, which includes a magnet assembly and a chip assembly mounting structure as described above, and the magnet assembly is arranged beside the Hall chip.

[0023] The beneficial effects of adopting the above solution are: realizing the acquisition and output of displacement signals in a non-contact manner, reducing physical wear and improving the service life of the sensor.

[0024] Furthermore, the magnet assembly includes a strip-shaped magnet mounting box, in which two or more magnets with opposite magnetic poles are installed at intervals along its length direction, and one end of the magnet mounting box is fixedly connected with a connecting seat for connecting with the main cylinder push rod through a connecting arm.

[0025] The beneficial effects of adopting the above further solution are: the magnet assembly adopts two or more strong magnets (neodymium iron boron) with opposite magnetic poles, extending the stroke of the cast steel push rod and increasing the measurement range.

[0026] The present utility model further provides a wire control braking system, which includes a displacement sensor as described above.

[0027] The beneficial effects of adopting the above solution are: adopting a spring contact method and integrating the compression spring assembly onto the housing, reducing the manufacturing difficulty; realizing the acquisition and output of displacement signals in a non-contact manner, reducing physical wear and improving the service life of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model;

[0029] Figure 2 It is an exploded view of Embodiment 1 of the present utility model;

[0030] Figure 3 It is a schematic structural diagram of Embodiment 2 of the present utility model;

[0031] Figure 4 It is a schematic structural diagram of Embodiment 3 of the present utility model;

[0032] Figure 5 It is a schematic structural diagram of Embodiment 4 of the present utility model;

[0033] Figure 6 It is a schematic diagram of parts in the embodiments of the present utility model;

[0034] In the drawings, the list of components represented by each reference numeral is as follows:

[0035] 1. Housing; 2. Circuit board; 3. Hall chip; 4. Installation groove; 5. Metal insert; 6. Electronic control unit; 7. Metal contact; 8. Spring cover; 9. Limit hole; 91. Tapered hole; 92. Straight through hole; 10. First tightly wound section of the spring; 11. Spring compression section; 12. Second tightly wound section of the spring; 13. First compressed spring section; 14. First spring abutting section; 15. Second compressed spring section; 16. Abutting post; 17. Limit seat; 18. Installation position; 19. Positioning post; 20. Magnet assembly; 201. Magnet installation box; 202. Magnet; 203. Connecting arm; 204. Connecting seat; 21. Positioning hole; 22. Installation hole. Detailed implementation manner

[0036] The principles and features of the present utility model are described below in conjunction with the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0037] Embodiment 1

[0038] As Figure 1 、 Figure 2 shown, this embodiment discloses an installation structure for a chip component, including a housing 1 and a circuit board 2. The circuit board 2 is fixed on the housing 1, and a Hall chip 3 is installed on the circuit board 2. One end of the housing 1 is provided with a plurality of installation grooves 4, and a plurality of metal inserts 5 are provided inside the housing 1. One end of the metal insert 5 is electrically connected to the circuit board 2, and the other end of the metal insert 5 extends into the installation groove 4. A compression spring assembly is provided in the installation groove 4. One end of the compression spring assembly abuts against and is electrically connected to the metal insert 5, and the other end of the compression spring assembly extends out of the installation groove 4 for abutting against and being electrically connected to the metal contact 7 on the automotive electronic control unit 6.

[0039] In this embodiment, a spring cover 8 is provided at the end of the housing 1 where the installation groove 4 is located. The spring cover 8 is provided with limit holes 9 that are in one-to-one correspondence and communicate with the installation groove 4. One section of the compression spring assembly extends out from the limit holes 9. The limit holes 9 limit the compression spring assembly to prevent the compression spring assembly from completely disengaging from the installation groove 4. The setting of the spring cover 8 can limit the compression spring assembly, avoid the compression spring assembly from disengaging from the installation groove 4, and at the same time facilitate the installation of the compression spring assembly.

[0040] In this embodiment, the spring cover 8 and the housing 1 can be detachably and fixedly connected by screws; they can also be detachably and fixedly connected by a bayonet method. Specifically, the opposite sides of the spring cover 8 are provided with buckles extending towards the housing 1. The buckles are provided with buckle grooves, and the corresponding sides of the housing 1 are provided with buckle blocks that match the buckle grooves. The buckle blocks are inserted into the buckle grooves.

[0041] Specifically, the compression spring assembly includes a first spring closing section 10, a spring compression section 11, and a second spring closing section 12 that are fixedly connected in sequence. The spring compression section 11 is conical. The limiting hole 9 includes a conical hole 91 and a straight through hole 92 that are communicated in sequence. The large diameter end of the conical hole 91 is communicated with the installation groove 4, the small diameter end of the conical hole 91 is communicated with one end of the straight through hole 92. The first spring closing section 10 is arranged in the installation groove 4, and one end of the first spring closing section 10 abuts against and is electrically connected to the metal insert 5. The spring compression section 11 is arranged in the conical hole 91 and abuts against the inner wall of the conical hole 91. The second spring closing section 12 is arranged in the straight through hole 92 and one end extends out of the straight through hole 92. The spring compression section 11 is arranged in the middle of the compression spring assembly. The conical hole 91 in the limiting hole 9 limits the spring compression section 11, thereby preventing the compression spring assembly from detaching, and at the same time, it will not affect the compression of the first spring closing section 10, ensuring that the second spring closing section 12 can have a certain pressing force on the metal contact 7 on the electronic control unit 6, thereby ensuring the stability of the signal electrical connection and ensuring the positioning accuracy.

[0042] As Figure 6 shown, in this embodiment, the housing 1 is provided with an installation position 18 for installing the circuit board 2. The installation position 18 is provided with a plurality of positioning posts 19. The circuit board 2 is provided with positioning holes 21 corresponding to the positioning posts 19 one by one. The positioning posts 19 are inserted into the positioning holes 21, and the circuit board 2 can be fixed to the installation position 18 by means of screws or can be clamped to the installation position 18 by a press riveting process. The arrangement of the positioning posts 19 and the positioning holes 21 facilitates the installation and positioning of the circuit board 2; after the positioning posts 19 are hot-melt compressed, the circuit board 2 can be better fixed.

[0043] The circuit board 2 is provided with an installation hole 22. One end of the metal insert 5 is inserted into the installation hole 22 and is welded to the circuit board 2 after press-fitting, ensuring the stability of the connection between the circuit board 2 and the metal insert 5 and providing an electrical channel for the input and output of the circuit board 2.

[0044] In this embodiment, the metal insert 5 is directly in abutting contact and electrical connection with the metal contact 7 on the automotive electronic control unit 6 through the compression spring assembly. Under the action of its own elasticity, the compression spring assembly ensures the stability of the electrical connection of the electronic control unit 6, avoids the welding process, and reduces the cost; and the compression spring assembly is integrated onto the housing 1, reducing the manufacturing difficulty.

[0045] Embodiment Two

[0046] As Figure 3As shown in the figure, this embodiment discloses a chip component mounting structure, which includes a housing 1 and a circuit board 2. The circuit board 2 is fixed on the housing 1, and a Hall chip 3 is mounted on the circuit board 2. A plurality of mounting grooves 4 are provided at one end of the housing 1. A plurality of metal inserts 5 are provided in the housing 1. One end of the metal insert 5 is electrically connected to the circuit board 2, and the other end of the metal insert 5 extends into the mounting groove 4. A compression spring assembly is provided in the mounting groove 4. One end of the compression spring assembly abuts against and is electrically connected to the metal insert 5, and the other end of the compression spring assembly extends out of the mounting groove 4 for abutting against and being electrically connected to a metal contact 7 on an automotive electronic control unit 6.

[0047] In this embodiment, a spring cover 8 is provided at the end of the housing 1 where the mounting groove 4 is located. The spring cover 8 is provided with limiting holes 9 that are in one-to-one correspondence and communicate with the mounting groove 4. One section of the compression spring assembly extends out from the limiting holes 9. The limiting holes 9 limit the compression spring assembly to prevent the compression spring assembly from completely disengaging from the mounting groove 4. The setting of the spring cover 8 can limit the compression spring assembly, avoid the compression spring assembly from disengaging from the mounting groove 4, and at the same time facilitate the installation of the compression spring assembly.

[0048] In this embodiment, the spring cover 8 and the housing 1 can be detachably and fixedly connected by screws; they can also be detachably and fixedly connected by a bayonet method. Specifically, the opposite sides of the spring cover 8 are provided with buckle plates extending in the direction of the housing 1. The buckle plates are provided with buckle grooves, and the opposite sides of the housing 1 are correspondingly provided with buckle blocks that match the buckle grooves. The buckle blocks are inserted into the buckle grooves.

[0049] Specifically, in this embodiment, the compression spring assembly includes a first compression spring segment 13 and a first abutting spring segment 14. The outer diameter of the first compression spring segment 13 is greater than the inner diameter of the limiting hole 9. The first compression spring segment 13 is arranged in the installation groove 4, and one end of the first compression spring segment 13 abuts against and is electrically connected to the metal insert 5. The first abutting spring segment 14 is slidably arranged in the limiting hole 9 and one end thereof extends out of the limiting hole 9. The other end of the first abutting spring segment 14 is fixedly connected to the other end of the first compression spring segment 13. One end of the first compression spring segment 13 connecting the first abutting spring segment 14 abuts against the side wall of the spring cover 8. The outer diameter of the first compression spring segment 13 is greater than the inner diameter of the limiting hole 9. After the spring cover 8 is installed, the first compression spring segment 13 is restricted to prevent it from disengaging from the installation groove 4. At the same time, since the first abutting spring segment 14 is slidably arranged in the limiting hole 9, the elastic force of the first compression spring segment 13 acts on the first abutting spring segment 14, so that the first abutting spring segment 14 can have a certain abutting pressure on the metal contact 7 on the electronic control unit 6, thereby ensuring the stability of the signal electrical connection and thus ensuring the positioning accuracy.

[0050] As Figure 6 shown, in this embodiment, the housing 1 is provided with an installation position 18 for installing the circuit board 2. A plurality of positioning posts 19 are provided at the installation position 18. The circuit board 2 is provided with positioning holes 21 corresponding to the positioning posts 19 one by one. The positioning posts 19 are inserted into the positioning holes 21, and the circuit board 2 can be fixed to the installation position 18 by means of screws or can be clamped to the installation position 18 through a press riveting process. The arrangement of the positioning posts 19 and the positioning holes 21 facilitates the installation and positioning of the circuit board 2; after the positioning posts 19 are hot-melt compressed, the circuit board 2 can be better fixed.

[0051] The circuit board 2 is provided with an installation hole 22. One end of the metal insert 5 is inserted into the installation hole 22 and is welded to the circuit board 2 after press-fitting, ensuring the stability of the connection between the circuit board 2 and the metal insert 5 and providing an electrical channel for the input and output of the circuit board 2.

[0052] In this embodiment, the metal insert 5 is directly abutted against and electrically connected to the metal contact 7 on the automotive electronic control unit 6 through the compression spring assembly. Under the action of its own elasticity, the compression spring assembly ensures the stability of the electrical connection of the electronic control unit 6, avoids the welding process, and reduces the cost; and the compression spring assembly is integrated onto the housing 1, reducing the manufacturing difficulty.

[0053] Embodiment Three

[0054] As Figure 4As shown in the figure, this embodiment discloses a chip component mounting structure, which includes a housing 1 and a circuit board 2. The circuit board 2 is fixed on the housing 1, and a Hall chip 3 is mounted on the circuit board 2. A plurality of mounting grooves 4 are provided at one end of the housing 1. A plurality of metal inserts 5 are provided inside the housing 1. One end of the metal insert 5 is electrically connected to the circuit board 2, and the other end of the metal insert 5 extends into the mounting groove 4. A compression spring assembly is provided in the mounting groove 4. One end of the compression spring assembly abuts against and is electrically connected to the metal insert 5, and the other end of the compression spring assembly extends out of the mounting groove 4 for abutting against and being electrically connected to a metal contact 7 on an automotive electronic control unit 6.

[0055] In this embodiment, a spring cover 8 is provided at the end of the housing 1 where the mounting groove 4 is located. The spring cover 8 is provided with limiting holes 9 that are in one-to-one correspondence and communication with the mounting grooves 4. One section of the compression spring assembly extends out from the limiting holes 9. The limiting holes 9 limit the compression spring assembly to prevent the compression spring assembly from completely disengaging from the mounting groove 4. The setting of the spring cover 8 can limit the compression spring assembly, avoid the compression spring assembly from disengaging from the mounting groove 4, and at the same time facilitate the installation of the compression spring assembly.

[0056] In this embodiment, the spring cover 8 and the housing 1 can be detachably and fixedly connected by screws; they can also be detachably and fixedly connected by a bayonet method. Specifically, on opposite sides of the spring cover 8, there are buckle plates extending towards the housing 1. The buckle plates are provided with buckle grooves, and corresponding buckle blocks are provided on opposite side faces of the housing 1 and are matched with the buckle grooves. The buckle blocks are inserted into the buckle grooves.

[0057] In this embodiment, the compression spring assembly includes a second compression spring section 15 and a contact column 16. The contact column 16 is slidably arranged in the limiting hole 9. One end of the contact column 16 extends out of the limiting hole 9, and a limiting seat 17 is fixedly arranged at the other end of the contact column 16. Both the limiting seat 17 and the contact column 16 are made of materials that can transmit signals, for example, made of metal materials. The limiting seat 17 is arranged in the mounting groove 4 and abuts against the side face of the spring cover 8. The second compression spring section 15 is arranged in the mounting groove 4. One end of the second compression spring section 15 abuts against and is electrically connected to the metal insert 5, and the other end of the second compression spring section 15 is connected to the limiting seat 17. The second compression spring section 15 exerts an elastic force on the limiting seat 17. The size of the limiting seat 17 is larger than the size of the limiting hole 9, so that the limiting seat 17 limits the contact column 16 and the second compression spring section 15 to prevent the contact column 16 and the second compression spring section 15 from disengaging, and at the same time ensure that there is sufficient abutting pressure to abut against the metal contact 7 on the electronic control unit 6, ensure the stability of the signal electrical connection, and at the same time ensure the positioning accuracy.

[0058] As Figure 6 shown, in this embodiment, the housing 1 is provided with a mounting position 18 for mounting the circuit board 2. A plurality of positioning posts 19 are provided at the mounting position 18. The circuit board 2 is provided with positioning holes 21 corresponding to the positioning posts 19 one by one. The positioning posts 19 are inserted into the positioning holes 21, and the circuit board 2 can be fixed to the mounting position 18 by means of screws or can be clamped to the mounting position 18 through a riveting process. The arrangement of the positioning posts 19 and the positioning holes 21 facilitates the installation and positioning of the circuit board 2. After the positioning posts 19 are hot-melt compressed, the circuit board 2 can be better fixed.

[0059] The circuit board 2 is provided with mounting holes 22. One end of the metal insert 5 is inserted into the mounting holes 22 and is welded to the circuit board 2 after press-fitting, ensuring the stability of the connection between the circuit board 2 and the metal insert 5 and providing an electrical path for the input and output of the circuit board 2.

[0060] In this embodiment, the metal insert 5 is directly in contact with and electrically connected to the metal contact 7 on the automotive electronic control unit 6 through a compression spring assembly. Under the elastic action of its own, the compression spring assembly ensures the stability of the electrical connection of the electronic control unit 6, avoids the welding process, and reduces the cost; and integrates the compression spring assembly onto the housing 1, reducing the manufacturing difficulty.

[0061] Embodiment Four

[0062] As Figure 5 shown, this embodiment discloses a displacement sensor, which includes a magnet assembly 20 and a chip assembly mounting structure as described above. The magnet assembly 20 is arranged beside the Hall chip 3.

[0063] Specifically, the magnet assembly 20 includes a strip-shaped magnet mounting box 201. Two or more magnets 202 with opposite magnetic poles are installed at intervals along the length direction of the magnet mounting box 201. One end of the magnet mounting box 201 is fixedly connected with a connecting seat 204 for connecting with the master cylinder push rod through a connecting arm 203. The magnet assembly 20 uses two or more strong magnets 202 (neodymium iron boron) with opposite magnetic poles, extending the stroke of the cast steel push rod and increasing the measurement range.

[0064] This embodiment realizes the acquisition and output of displacement signals in a non-contact manner, reduces physical wear, and improves the service life of the sensor.

[0065] Embodiment Five

[0066] This embodiment provides a wire control braking system, which includes a displacement sensor as described above. This embodiment adopts a spring contact method and integrates the compression spring assembly onto the housing 1, reducing the manufacturing difficulty; it realizes the acquisition and output of displacement signals in a non-contact manner, reducing physical wear and improving the service life of the system.

[0067] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0068] In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0069] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0071] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chip component mounting structure, characterized in that, The invention comprises a housing (1) and a circuit board (2), wherein the circuit board (2) is fixed on the housing (1), and a Hall chip (3) is mounted on the circuit board (2); a plurality of mounting slots (4) are provided on one end of the housing (1), and a plurality of metal inserts (5) are provided in the housing (1), one end of the metal insert (5) is electrically connected to the circuit board (2), and the other end of the metal insert (5) extends into the mounting slot (4); a compression spring assembly is provided in the mounting slot (4), one end of the compression spring assembly abuts and is electrically connected to the metal insert (5), and the other end of the compression spring assembly extends out of the mounting slot (4) for abutting and electrically connecting to a metal contact (7) on an automotive electronic control unit (6).

2. The mounting structure of a chip component according to claim 1, characterized in that The housing (1) is provided with a spring cover (8) at one end of the mounting slot (4), and the spring cover (8) is provided with a limiting hole (9) that is in one-to-one correspondence with the mounting slot (4), and a section of the compression spring assembly extends from the limiting hole (9). The limiting hole (9) limits the compression spring assembly to prevent the compression spring assembly from completely separating from the mounting slot (4).

3. The mounting structure of a chip component according to claim 2, wherein, The compression spring assembly comprises a first spring tightening section (10), a spring compression section (11) and a second spring tightening section (12) which are fixedly connected in sequence, the spring compression section (11) is conical, the limiting hole (9) comprises a conical hole (91) and a straight hole (92) which are connected in sequence, the large diameter end of the conical hole (91) is connected to the mounting groove (4), and the small diameter end of the conical hole (91) is connected to one end of the straight hole (92), the first spring tightening section (10) is arranged in the mounting groove (4), and one end of the first spring tightening section (10) abuts and is electrically connected to the metal insert (5), the spring compression section (11) is arranged in the conical hole (91) and abuts against the inner wall of the conical hole (91), and the second spring tightening section (12) is arranged in the straight hole (92) and one end extends out of the straight hole (92).

4. The chip component mounting structure according to claim 2, wherein, The compression spring assembly includes a first compression spring segment (13) and a first resisting spring segment (14), the outer diameter of the first compression spring segment (13) is larger than the inner diameter of the limiting hole (9), the first compression spring segment (13) is arranged in the mounting groove (4), and one end of the first compression spring segment (13) is in contact with and electrically connected to the metal insert (5), the first resisting spring segment (14) is slidably arranged in the limiting hole (9) and one end extends out of the limiting hole (9), the other end of the first resisting spring segment (14) is fixedly connected to the other end of the first compression spring segment (13), and one end of the first compression spring segment (13) connected to the first resisting spring segment (14) is in contact with the side wall of the spring cover (8).

5. The chip component mounting structure according to claim 2, characterized in that, The compression spring assembly includes a second compression spring segment (15) and an abutting column (16). The abutting column (16) is slidably arranged in the limiting hole (9). One end of the abutting column (16) extends out of the limiting hole (9), and a limiting seat (17) is fixedly arranged at the other end of the abutting column (16). The limiting seat (17) is arranged in the mounting groove (4) and abuts against the side surface of the spring cover (8). The second compression spring segment (15) is arranged in the mounting groove (4). One end of the second compression spring segment (15) abuts against and is electrically connected to the metal insert (5), and the other end of the second compression spring segment (15) is connected to the limiting seat (17).

6. A chip component mounting structure according to any one of claims 2 to 5, characterized in that, The spring cover (8) is snap-connected to the housing (1).

7. A chip component mounting structure according to any one of claims 1 to 5, characterized in that The housing (1) is provided with a mounting position (18) for mounting the circuit board (2). A plurality of positioning columns (19) are arranged at the mounting position (18). The circuit board (2) is provided with positioning holes (21) corresponding to the positioning columns (19) one by one, and the positioning columns (19) are inserted into the positioning holes (21).

8. A displacement sensor, characterized in that, It includes a magnet assembly (20) and a chip component mounting structure according to any one of claims 1 to 7. The magnet assembly (20) is arranged beside the Hall chip (3).

9. A displacement sensor according to claim 8, characterized in that, The magnet assembly (20) includes a strip-shaped magnet mounting box (201). More than two magnets (202) with opposite magnetic poles are installed at intervals along the length direction in the magnet mounting box (201). One end of the magnet mounting box (201) is fixedly connected with a connecting seat (204) for connecting with the main cylinder push rod through a connecting arm (203).

10. A wire control braking system, characterized in that, It includes a displacement sensor according to claim 8 or 9.

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