brake

Abstract

The utility model relates to a brake, including PCB installation groove, the PCB is fixed in the PCB installation groove, is equipped with the cover body on the PCB installation groove, the surface of PCB is pressure joint has the connector, the connector passes through the mouth of being seted up on the cover body, the plug end of the connector is led to the outside of the brake by the connector passes through the mouth.

Description

Technical Field

[0001] This utility model relates to brakes. Background Technology

[0002] Existing automotive brakes are generally housed within the wheel hub, with power and communication between the brake and the vehicle body achieved through a plug-in connection. However, in a dual-cylinder EMB brake structure, the motor drives two piston mechanisms simultaneously via transmission gears. The additional pistons and their transmission components occupy the original wiring space on the housing, resulting in an awkward wiring layout and increasing the difficulty of brake assembly. Utility Model Content

[0003] The purpose of this invention is to provide a brake with a different PCB lead-out structure.

[0004] To achieve the above objectives, this utility model provides a brake, including a PCB mounting slot, in which a PCB is fixed, and a cover is provided on the PCB mounting slot. A connector is pressed onto the surface of the PCB, and a connector through-hole is provided on the cover. The plug end of the connector is led out of the connector through-hole to the outside of the brake.

[0005] In some embodiments of this utility model, the connector is fastened to the PCB mounting slot by one or more bolts, the bolts being used to provide a preload force to keep the connector pressed against the surface of the PCB.

[0006] In some embodiments of this utility model, the connector has a base portion, the bottom of the PCB mounting slot has one or more first support legs, one or more support leg clearance holes are provided on the PCB, the first support legs pass through the support leg clearance holes and are supported on the bottom of the base portion, and the base portion and the first support legs are fastened together by bolts.

[0007] In some embodiments of this utility model, the connector has a base portion, the base portion has one or more second support legs, the base portion is supported on the surface of the PCB by the second support legs, the PCB has one or more bolt clearance holes, and the bolt is connected to the PCB mounting slot and the second support legs through the bolt clearance holes.

[0008] In some embodiments of this utility model, the connector and the connector through-hole are sealed by a sealing element.

[0009] In some embodiments of this invention, the connector has an insulated connector housing.

[0010] In some embodiments of this utility model, a brake housing is included, wherein the brake housing is configured with a drive mechanism receiving groove and a PCB mounting groove, and the PCB mounting groove is offset to one side of the drive mechanism receiving groove in the radial direction.

[0011] In some embodiments of this utility model, the drive mechanism receiving groove has a parking mechanism fixing part, and the parking mechanism fixing part and the PCB mounting groove have a connecting part, and the parking mechanism is connected to the PCB through the connecting part.

[0012] In some embodiments of this utility model, the brake is a dual-cylinder EMB brake.

[0013] The brake structure provided by this utility model has the advantage of being easy to assemble, and is especially suitable for dual-cylinder EMB brakes. Attached Figure Description

[0014] Figure 1 One partial structure of the brake is shown.

[0015] Figure 2 It shows Figure 1 The structure of the connector.

[0016] Figure 3 Another partial structure of the brake is shown.

[0017] Figure 4 It shows Figure 3 The structure of the connector.

[0018] Figure 5 It shows Figure 1 The structure of the middle shell 200a.

[0019] Figure 6 A structure of a brake housing is shown.

[0020] Figure 7 It shows Figure 6 The structure of the central support positioning block 600.

[0021] In the picture: 10a / 10b - Sealing ring, 20a / 20b - Bolt, 30 - Quick adapter; 100a / 100b - Connector; 110a / 110b - Pins, 120a / 120b - Connector housing, 121a / 121b - Base body, 122a - Mounting positioning hole, 122b - Threaded hole, 123a / 123b - Sealing ring fixing groove, 124b - Second support leg, 130 - Plug end; 200a / 200b - Cover; 210a - Bolt clearance groove, 220a / 220b - Connector through hole; 300\300a\300b-PCB; 400a / 400b - Brake housing; 410a / 410b - PCB mounting slot, 420 - drive mechanism receiving slot, 421 - first limiting groove, 430 - partition plate part, 431 - connecting part; 500-Electromagnetic actuator; 600 - Support positioning block; 610 - Second limiting groove, 620 - Mounting positioning hole, 630 - Avoidance groove. Detailed Implementation

[0022] Considering the difficulty in arranging the PCB wiring structure in current dual-cylinder brakes, which leads to difficulties in overall brake assembly, this utility model provides a brake with different PCB wiring structures to simplify the brake assembly process. Its structure mainly includes a PCB mounting slot, in which a PCB is fixed. A cover is provided on the PCB mounting slot, and a connector is pressed onto the surface of the PCB. The cover has a connector through-hole, through which the plug end of the connector extends to the outside of the brake.

[0023] During assembly, after the PCB is installed into the PCB mounting slot, the connector is pressed onto the PCB surface, and then the cover is placed over the PCB mounting slot, allowing the plug end of the connector to pass through the connector through the opening on the cover, thus completing the assembly. Besides being easy to assemble, this structure effectively avoids problems such as incomplete or incorrect pin pressing caused by blind assembly.

[0024] In this invention, the crimping of the PCB and the connector is easily achieved. For example, the PCB has crimp terminals, and by applying external pressure, the pins of the connector are crimped onto the crimp terminals. The connector structure generally includes a connector housing and multiple pins.

[0025] The connector can be fastened to the PCB mounting slot using one or more bolts. The bolts provide a preload force to hold the connector pressed against the PCB surface. One possible implementation is that the connector has a base, the bottom of the PCB mounting slot has one or more first support legs, and the PCB has one or more support leg clearance holes. The first support legs pass through the clearance holes and are supported on the bottom of the base, and the base and the first support legs are fastened together by bolts. (See reference...) Figure 1 and Figure 2The structure shown depicts a connector 100a with a base portion 121a. The PCB mounting slot 410a has three first support legs 420a at its bottom. The PCB 300a has three support leg clearance holes. The first support legs 420a pass through these clearance holes and are supported on the bottom of the base portion 121a. The base portion 121a and the first support legs 420a are fastened together by bolts 20a. Alternatively, the connector may have a base portion with one or more second support legs. The base portion is supported on the surface of the PCB by the second support legs. The PCB has one or more bolt clearance holes, through which bolts connect to the PCB mounting slot and the second support legs. (See reference...) Figure 3 The connector 100b has a base portion 121b, which has four second support legs 124b. The base portion 121b is supported on the surface of the PCB 300b by the second support legs 124b. The PCB 300b has four bolt clearance holes, and the bolt 20b connects to the PCB mounting slot 410b and the second support legs 124b through the bolt clearance holes.

[0026] The connector and its through-hole are sealed by a sealing element. For example, the connector can achieve a sealed fit with its through-hole using a sealing element. (See reference) Figures 1-4 A sealing ring fixing groove 123b is provided on the connector housing 120a and 120b, and a sealing ring 10b is provided in the sealing ring fixing groove. The outer periphery of the sealing ring abuts against the connector through-hole 220b to achieve a sealing fit.

[0027] In addition, considering that the cover of the brake that is installed on the PCB mounting slot is generally made of conductive metal, in order to avoid short circuits, connectors with insulating housings can be selected.

[0028] The inner surface of the cover may optionally have a recessed portion to avoid bolts. Figure 1 Taking the structure shown as an example, the inner surface of the cover has a groove 210a for avoiding the head of the bolt 20a.

[0029] The PCB mounting slot is generally formed by a brake housing. The brake housing also typically includes a drive mechanism receiving slot; the remaining structure within the brake housing can refer to existing structures. The drive mechanism generally consists of a motor, transmission gears, and a parking mechanism. Its structure can be an existing mechanism. The motor transmits torque to the piston via the transmission gears, converting it into linear motion in the braking direction, which drives the friction pads to rub against the brake disc to achieve braking. The parking mechanism generally includes an electromagnetic push rod, a ratchet, and a pawl. The electromagnetic push rod pushes the pawl to abut against the ratchet, which is coaxial with the transmission gear, to achieve the parking function. The drive mechanism is generally mounted on a motor cage and covered by the drive mechanism receiving slot. In some preferred embodiments, unlike the centrally positioned triangular PCB and PCB mounting slot in the prior art, this invention offsets the PCB mounting slot to one radial side of the drive mechanism receiving slot. Figure 6 A specific structure of a brake housing 400 is shown, wherein a drive mechanism receiving slot 420 is arranged in the lower part of the brake housing, and a PCB mounting slot 410 is arranged in the upper part of the brake housing and is vertically separated from the drive mechanism receiving slot by a partition 430. The PCB mounting slot 410 is radially offset to the left of the drive mechanism receiving slot. Preferably, the drive mechanism receiving slot has a parking mechanism fixing part, and there is a communication part between the parking mechanism fixing part and the PCB mounting slot, through which the parking mechanism is connected to the PCB. (See reference...) Figure 6 The electromagnetic push rod 500 in the parking mechanism is fixed in a first limiting groove 421, which serves as the fixing part of the parking mechanism. A connecting part 431 is provided on the partition between the top of the first limiting groove and the PCB mounting slot. The pins of the electromagnetic push rod are connected to the PCB through a quick-connect adapter 30 provided in the connecting part. Furthermore, a support positioning block 600 can be provided at the bottom of the electromagnetic push rod 500. The support positioning block is fixed on the motor retainer and limits and fixes the lower part of the electromagnetic push rod. The specific structure of the support positioning block 600 can be found in [reference needed]. Figure 7 It includes a second limiting groove 610 for limiting and fixing the lower part of the electromagnetic push rod, and four mounting positioning holes 620 for fixing it on the motor bracket. Based on different electromagnetic push rod structures, relevant clearance grooves 630 can be set on the support positioning block to avoid the electromagnetic push rod structure and achieve limiting and fixing. Thus, by fixing the support positioning block on the motor retainer with bolts, the electromagnetic push rod of the parking mechanism is fixed and positioned by the second limiting groove 610 of the support positioning block, so that when installing the brake housing 400, the electromagnetic push rod can be accurately aligned with the first limiting groove 421, avoiding misalignment during installation and crushing of the electromagnet.

[0030] The following embodiments provide specific examples of the brake of this utility model. The structures mentioned above will not be described in detail here.

[0031] refer to Figure 1 and Figure 2 A feasible specific structure. First, a PCB 300a is fixedly installed in a PCB mounting groove 410a formed by a brake housing 400a. Three support posts 420a in the PCB mounting groove 410a pass through clearance holes opened on the PCB and protrude from the surface of the PCB. Threaded holes are provided in the support posts. The seat portion 121 of the connector 100a is placed on the support posts. The seat portion 121a has three mounting positioning holes 122a (see...). Figure 2 The mounting positioning holes correspond to the threaded holes in the support column. The pins 110a in connector 100a are pressed onto the crimp terminals on the PCB. Four bolts pass through the mounting positioning holes and are tightened into the threaded holes. The preload of the bolts ensures a stable crimping state between connector 100a and PCB 300a. A sealing ring 10a is pre-fitted onto the connector housing, and a cover 200a is placed on top. The plug end of the connector passes through the connector through hole 220a on the cover. The connector through hole 220a is also sealed to the connector by the sealing ring 10a. The groove 210a on the inner surface of the housing serves to avoid the bolt head, making the overall structure more compact.

[0032] refer to Figure 3 and Figure 4 Another feasible specific structure is as follows: First, the PCB 300b is fixedly installed in the PCB mounting groove 410b formed by the brake housing 400b. Four mounting positioning holes 422b are provided at the bottom of the PCB mounting groove, i.e., on the partition between the PCB mounting groove and the drive device receiving groove. Four threaded holes are provided in the four second support legs 124b on the connector 100b base 121b using an inlaid toothed sleeve method. The four second support legs 124b support the surface of the PCB 300b, and the threaded holes are aligned with the four bolt clearance holes on the PCB. The bolts are inserted from the drive mechanism receiving groove side through the mounting positioning holes 422b, pass through the bolt clearance holes on the PCB, and are screwed into the threaded holes. The preload of the bolts maintains a stable press-fit between the connector 100b and the PCB 300b. Similarly, a sealing ring 10b is pre-fitted onto the connector housing. A cover 200b is placed on the PCB mounting slot 410b. The plug end of the connector at the top passes through the connector through hole 220b on the cover. The connector through hole 220b is also sealed to the connector by a sealing ring 10b.

[0033] As can be seen from the above description, the brake structure of this utility model is very easy to assemble, and the PCB wires coming out from the cover are particularly suitable for dual-cylinder EMB brakes.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A brake, characterized in that... It includes a PCB mounting slot, in which a PCB is fixed. A cover is provided on the PCB mounting slot, and a connector is pressed onto the surface of the PCB. A connector through-hole is provided on the cover, and the plug end of the connector is led out to the outside of the brake through the connector through-hole.

2. The brake as described in claim 1, characterized in that... The connector is fastened to the PCB mounting slot by one or more bolts, the bolts being used to provide preload force to keep the connector pressed against the surface of the PCB.

3. The brake as described in claim 2, characterized in that... The connector has a base portion, the bottom of the PCB mounting slot has one or more first support legs, the PCB has one or more support leg clearance holes, the first support legs pass through the support leg clearance holes and are supported on the bottom of the base portion, and the base portion and the first support legs are fastened together by bolts.

4. The brake as described in claim 2, characterized in that... The connector has a base portion, which has one or more second support legs. The base portion is supported on the surface of a PCB by the second support legs. The PCB has one or more bolt clearance holes, through which the bolts connect to the PCB mounting slot and the second support legs.

5. The brake as described in claim 2, characterized in that... The inner surface of the cover has a recess to avoid bolts.

6. The brake as claimed in claim 1, characterized in that... The connector and the connector through the port are sealed by a sealing element.

7. The brake as claimed in claim 1, characterized in that... The connector has an insulated connector housing.

8. The brake as claimed in claim 1, characterized in that... The device includes a brake housing, which has a drive mechanism receiving groove and a PCB mounting groove, wherein the PCB mounting groove is offset to one side radially from the drive mechanism receiving groove.

9. The brake as claimed in claim 7, characterized in that... The drive mechanism receiving slot has a parking mechanism fixing part, and there is a communication part between the parking mechanism fixing part and the PCB mounting slot. The parking mechanism is connected to the PCB through the communication part.

10. The brake as claimed in claim 1, characterized in that... The brake described is a dual-cylinder EMB brake.

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