EMB brake caliper force sensor wiring structure and wiring method

Abstract

The invention discloses an EMB brake caliper force sensor wiring structure and wiring method, and belongs to the technical field of EMB brake calipers, the EMB brake caliper force sensor wiring structure comprises a wire harness assembly and a force sensor installed in a brake caliper body, the brake caliper body is internally provided with a vertically through channel for the wire harness assembly to pass through, and the force sensor is arranged in the channel. One end of the wire harness assembly is connected with the force sensor, and the other end of the wire harness assembly extends out of the channel and then is connected with the controller. The brake caliper has the beneficial effects that under the condition that the axial height of the brake caliper is not additionally increased, the wire harness of the force sensor can be conveniently led out from the interior of the caliper body, stable positioning and sealing of the wire harness can be achieved, and the reliability of the brake caliper is improved. And moreover, the wire harness is convenient to mount and dismount, and all parts in the brake calipers are convenient to maintain and replace.

Description

Technical Field

[0001] The present invention relates to the technical field of EMB brake calipers, and in particular to a wiring structure and a wiring method for an EMB brake caliper force sensor. Background Art

[0002] In the field of electro-mechanical brake (EMB) systems, force sensors are needed to monitor the wheel-end clamping force. The most commonly used force sensor is the annular force sensor, which is often arranged in the caliper body. When the brake is applied, the pressure signal output by the force sensor is transmitted to the controller, and the controller controls the brake caliper to output the corresponding braking force for closed-loop control of the system.

[0003] The existing wiring methods of force sensors mainly include the following schemes: (1) increasing the distance between the bottom surface of the caliper body cylinder port and the controller installation surface, and installing a connector between the two surfaces; (2) giving way to the wiring harness or busbar of the controller's gears and other components so that the signal can be transmitted inside the controller.

[0004] Although the above solution solves the wiring problem of the force sensor, it increases the axial size and weight of the brake caliper. In the prior art, the relative positions of the brake caliper A, the rim B and the air spring C in high-end models are as follows: the brake caliper A is arranged axially inside the rim B, the air spring C is located inside the rim B, and the air spring C is axially separated from the brake caliper A by a certain distance. Since the existing high-end cars contain air springs C, and the arrangement of the air springs C has high requirements on the axial size of the brake caliper A, the excessive axial size of the brake caliper A will affect the arrangement of the air springs C, and will also have an adverse effect on the performance of the brake caliper A.

[0005] For example, the patent with the publication number CN115773833A discloses a force sensor, which includes a metal base, a substrate with a longitudinally extending through hole in the center, the longitudinal proximal end of the substrate extending outward laterally to form a circle of first flange; a sealing groove formed on the inner wall of the substrate; a sealing ring arranged in the sealing groove; a sealing cover that forms a sealed cavity with the metal base toward the longitudinal distal end; at least two varistors located in the sealed cavity, the varistors correspondingly arranged on the insulating foundation arranged on the proximal end face of the substrate; and a circuit board located in the sealed cavity and arranged on the proximal end face of the substrate, the periphery of the circuit board is provided with a plurality of notches for avoiding the insulating foundation on a plane perpendicular to the longitudinal direction, and the varistors are electrically connected to the circuit board. This patent only discloses the structure of the force sensor, but does not disclose the wiring structure of the force sensor, cannot solve the technical problem proposed by the present invention, and does not provide a technical inspiration for solving the technical solution of the present invention. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a wiring structure and a wiring method for a force sensor for an EMB brake caliper, which facilitates the wiring harness of the force sensor to be routed out from the inside of the caliper body without increasing the axial height of the brake caliper, thereby achieving stable positioning and sealing of the wiring harness, and facilitating the installation and disassembly of the wiring harness, and facilitating the maintenance and replacement of various components in the brake caliper.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve its technical problem is: a wiring structure of a force sensor for an EMB brake caliper, including a wiring harness assembly and a force sensor installed in a brake caliper body, wherein the brake caliper body is provided with a vertical through-channel for the wiring harness assembly to pass through, one end of the wiring harness assembly is connected to the force sensor, and the other end of the wiring harness assembly is connected to a controller after extending out of the channel.

[0008] The wiring harness assembly includes a wiring harness body, one end of which is directly or indirectly connected to the force sensor, and the other end of which is connected to the controller via a connecting component.

[0009] The connection assembly includes a connector II or two connectors II connected in series and a connecting harness therebetween.

[0010] The channel includes a lifting section, a horizontal section and a vertical section connected in sequence, one end of the harness body is connected to the force sensor after passing through the vertical section, and the other end of the harness body is connected to the connecting component after extending out of the lifting section.

[0011] A wire pressing rack for pressing and positioning the wire harness body is installed at a position close to the horizontal section on the brake caliper body.

[0012] The wire crimping frame includes a clamping plate for clamping the wire harness body, both sides of the clamping plate are connected to the brake caliper body through mounting ears, one end of the clamping plate is provided with two claws, and the two claws are connected to the wire harness body in a limiting manner.

[0013] The clamping claw is configured as an L-shaped plate, and one end of the wiring harness assembly is provided with an axial limit platform that abuts and cooperates with the bottom end of the corresponding clamping claw.

[0014] A radial limit platform is provided on the harness body at the intersection of the horizontal section and the vertical section along its radial direction. The radial limit platform is clamped between two claws, and a limit surface on one side of the radial limit platform fits with the vertical surfaces at the roots of the two claws.

[0015] A waterproof sealing head is installed at the bottom end of the channel, and the waterproof sealing head is tightly connected with the wiring harness body.

[0016] One end of the wiring harness body is connected to the force sensor via connector I.

[0017] The connector I includes a female connector connected to one end of the wiring harness body and a male connector socket arranged on the force sensor. The female connector is configured as a multi-core aviation plug, a Fakra plug or a USB plug. The end of the female connector is provided with a plurality of foolproof mounting blocks, and the male connector socket is provided with a guide groove for guiding and plugging with the corresponding foolproof mounting blocks.

[0018] A sealing ring is installed on the female end of the connector and is sealed with the male end socket of the connector.

[0019] One end of the wiring harness body is connected to an internal wiring point of the force sensor by welding.

[0020] A wiring method for an EMB brake caliper force sensor, using the wiring structure, comprises the following steps:

[0021] Step 1: Use the lead tool to install it on the female end of the connector at the end of the harness assembly, pull the harness assembly upward from the bottom of the channel and connect it to the force sensor;

[0022] Step 2: Install the wire crimping rack on the brake caliper body so that the wire crimping rack can press the wire harness assembly into position;

[0023] Step 3: Install the waterproof sealing head at the bottom of the channel and hold the wiring harness assembly tightly in place;

[0024] Step 4: Extend the wiring harness assembly out of one end of the channel and connect it to the controller.

[0025] The lead tooling used in step 1 includes a card connector and a traction rod fixed at one end thereof, a plurality of fool-proof mounting blocks are circumferentially arranged at one end of the female end of the connector, and an L-shaped card slot with an open top that is rotatably engaged with the corresponding fool-proof mounting block is circumferentially arranged on the card connector.

[0026] A wiring method for an EMB brake caliper force sensor, using the wiring structure, comprises the following steps:

[0027] Step 1: Pass the wiring harness body of the wiring harness assembly fixedly connected to the force sensor downward from the upper part of the channel;

[0028] Step 2: Install the wire crimping rack on the brake caliper body so that the wire crimping rack presses the wire harness body into position;

[0029] Step 3: Pass the waterproof sealing head through the wire harness body and install it at the bottom of the channel, and hold the wire harness body tightly in place;

[0030] Step 4: Assemble connector II to one end of the harness body passing through the channel;

[0031] Step 5: Connect connector II to the controller.

[0032] The beneficial effects of the present invention are:

[0033] 1. The present invention provides a vertically penetrating channel in the brake caliper body for the wiring harness assembly to pass through, so that one end of the wiring harness assembly is connected to the force sensor, and the other end of the wiring harness assembly is connected to the controller after extending out of the channel. On the basis of not additionally increasing the axial height of the brake caliper, the arrangement requirements of the air spring on the high-end car are met, and the wiring harness assembly is easy to disassemble and install, so that the controller connected thereto is easy to repair and replace, thereby reducing the maintenance cost.

[0034] 2. The present invention arranges the channel in the brake caliper body into a multi-section structure that is interconnected, namely, includes a lifting section, a horizontal section and a vertical section that are connected in sequence, and installs a wire crimping rack on the brake caliper body close to the horizontal section. The two claws on the wire crimping rack cooperate with the axial and radial limiters of the wiring harness assembly to prevent the wiring harness assembly from moving radially and axially in the direction of outward pulling, thereby avoiding the problem of the wiring harness shaking and easy loose connection when the brake caliper body vibrates.

[0035] 3. The present invention comprises a connector I on the wiring harness assembly including a connector female end connected to one end of the wiring harness body and a connector male end socket arranged on the force sensor. The connector female end is arranged as a multi-core aviation plug, a Fakra plug or a USB plug. A plurality of foolproof mounting blocks are arranged on the connector female end, which can not only realize foolproof plugging with the connector male end socket on the force sensor, but also realize traction and threading of the wiring harness assembly in the channel by rotating and clamping the lead tool and the foolproof mounting block, so that the installation of the wiring harness assembly is faster and more convenient; a sealing ring is arranged on the connector female end, and a sealing fit can be realized after the connector female end is connected to the connector male end socket on the force sensor, and a waterproof sealing head is installed at the bottom of the channel to hug the wiring harness, which has the effect of dustproof and waterproof, and ensures the accuracy and reliability of signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0037] Figure 1 It is a schematic diagram of the wiring structure of the EMB brake caliper force sensor in the first embodiment of the present invention;

[0038] Figure 2 yes Figure 1 A full cross-sectional view of

[0039] Figure 3 is a schematic structural diagram of a wiring harness assembly in Embodiment 1 of the present invention;

[0040] Figure 4 for Figure 3 A schematic diagram of the structure of the female end of the connector;

[0041] Figure 5 It is a structural schematic diagram of a connector male end socket on a force sensor that is plugged and matched with a connector female end in a first embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of the structure in which the lead tooling is connected to the female end of the connector on the wiring harness assembly in the first embodiment of the present invention;

[0043] Figure 7 for Figure 6 Schematic diagram of the structure of the middle lead tooling;

[0044] Figure 8 It is a structural schematic diagram of the wire rack in the present invention;

[0045] Fig. 9 for Figure 1 A schematic diagram of the structure of the medium voltage wire rack and the wiring harness body;

[0046] Fig.10 It is a schematic diagram of the wiring structure of the EMB brake caliper force sensor in the third embodiment of the present invention;

[0047] The marks in the above figures are: A. Brake caliper, B. Rim, C. Air spring, 1. Wiring harness assembly, 11. Wiring harness body, 12. Connector female end, 121. Foolproof mounting block, 122. Sealing ring, 13. Connector II plug, 14. Axial limit table, 15. Radial limit table, 2. Brake caliper body, 3. Force sensor, 31. Sensor body, 32. Circuit board, 33. Connector male end socket, 331. Guide groove, 4. Channel, 41. Lifting section, 42. Horizontal section, 43. Vertical section, 5. Controller, 6. Wire crimping rack, 61. Clamping plate, 62. Mounting lug, 63. Claw, 7. Waterproof sealing head, 8. Lead tooling, 81. Card connector, 811. L-shaped card slot, 82. Traction rod, 9. Screw shaft, 10. Screw nut. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0049] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The present invention provides a wiring structure of an EMB brake caliper force sensor, and the present invention specifically describes its specific structure with the following embodiments.

[0052] Embodiment 1

[0053] like Figure 1 and Figure 2 As shown, a wiring structure of a force sensor for an EMB brake caliper includes a wiring harness assembly 1 and a force sensor 3 installed in a brake caliper body 2. A vertical through-channel 4 is provided in the brake caliper body 2 for the wiring harness assembly 1 to pass through. One end of the wiring harness assembly 1 passes through the channel 4 and is connected to the force sensor 3. The other end of the wiring harness assembly 1 extends out of the channel 4 and is connected to a controller 5. The present invention meets the arrangement requirements of air springs on high-end vehicles without increasing the axial height of the brake caliper. In addition, the wiring harness assembly 1 is easy to disassemble and install, so that the controller 5 connected thereto is easy to repair and replace, thereby reducing maintenance costs.

[0054] Specifically, Figure 2 As shown, the force sensor 3 is an existing annular force sensor 3, which is sleeved on the screw shaft 9 and pressed between the brake caliper body 2 and the upper end surface of the screw shaft 9. The force sensor 3 includes a sensor body 31, which includes a metal diaphragm in contact with the screw nut 10, and a silicon strain gauge is sintered on the upper surface of the metal diaphragm through glass powder. The sensor body 31 is installed with a circuit board 32, and the circuit board 32 is fixedly connected to the connector male end socket 33 by welding or riveting. The structure and working principle of the force sensor 3 are all existing technologies and will not be repeated here.

[0055] Specifically, Figure 2 to Figure 5As shown, the wiring harness assembly 1 includes a wiring harness body 11, one end of the wiring harness body 11 is plugged and connected to the connector male end socket 33 on the force sensor 3 through the connector female end 12, and the other end of the wiring harness body 11 is connected to the controller 5 through the connector II, or the other end of the wiring harness body 11 is connected to the controller 5 through the connector II, the connecting harness and the connector II. The connector II includes a connector II plug 13 connected to one end of the wiring harness body 11 and a connector II socket installed on the controller 5, and the connector II plug 13 is plugged and matched with the connector II socket to realize signal transmission connection.

[0056] Specifically, if Figure 2 As shown, the channel 4 includes a lifting section 41, a horizontal section 42 and a vertical section 43 which are arranged from the outside to the inside on the brake caliper body 2 and are connected in sequence, wherein the lifting section 41 is arranged as an inclined section, and the connector female end 12 drives the wiring harness body 11 to pass through the lifting section 41, the horizontal section 42 and the vertical section 43 in sequence and then is plugged and connected with the force sensor 3.

[0057] Specifically, if Figure 1 , Figure 8 and Fig. 9 As shown, a wire crimping rack 6 for pressing and positioning the wire harness body 11 is installed near the horizontal section 42 on the brake caliper body 2, wherein the upper sides of the horizontal section 42 and the vertical section 43 are open. After the wire crimping rack 6 is installed, the wire crimping rack 6 can press the wire harness body 11.

[0058] The wire crimping frame 6 includes a horizontally arranged clamping plate 61 for clamping the wire harness body 11. Both sides of the clamping plate 61 are connected to the brake caliper body 2 through mounting ears 62. One end of the clamping plate 61 is provided with two claws 63, and the two claws 63 are connected to the wire harness body 11. The limiting structure between the two claws 63 and the wire harness body 11 includes axial limiting and radial limiting, and the specific structure is as follows:

[0059] The axial limiting structure is as follows: the claw 63 is set as an L-shaped plate, and the two opposite sides of the connector female end 12 are respectively provided with axial limiting platforms 14 that abut against the bottom ends of the corresponding claws 63, and the two opposite sides of the connector female end 12 are axially provided with positioning cut surfaces, and the bottom ends of the positioning cut surfaces are connected to the axial limiting platforms 14. After one end of the harness body 11 is installed in place through the connector I and the force sensor 3, and the crimping frame 6 is also installed in place, after the two claws 63 are clamped on the positioning cut surfaces on both sides of the connector female end 12, a certain installation gap is left between the bottom ends of the two claws 63 and the upper end faces of the axial limiting platforms 14 to ensure that the connector female end 12 can be installed in place, so that the connector female end 12 can move axially for a certain distance but cannot move axially in the direction of outward withdrawal.

[0060] The radial limiting structure is as follows: a radial limiting platform 15 is provided along the radial direction of the wiring harness body 11 at the intersection of the horizontal section 42 and the vertical section 43. The radial limiting platform 15 is clamped between the two claws 63, so that the wiring harness assembly cannot move radially in the direction of outward pulling, and the limiting surface on one side of the radial limiting platform 15 is in contact with the vertical surface at the root of the two claws 63, which plays a role of secondary axial limiting.

[0061] When the wire crimping rack 6 is installed and positioned at the corresponding position on the brake caliper body 2, the clamping plate 61 horizontally presses the wiring harness body 11, and after the two claws 63 extend into the vertical section 43 of the channel 4, the inner side surfaces of the two claws 63 are tightly against the radial limit platform 15 on the wiring harness body 11, and a certain installation gap is left between the bottom ends of the two claws 63 and the corresponding upper end surfaces of the axial limit platforms 14, thereby realizing axial and radial limitation of the wiring harness body 11, ensuring that the connector female end 12 can be installed in place, avoiding the situation where the connector female end 12 is separated from the connector male end socket 33, and further ensuring the reliability of the connection between the wiring harness assembly 1 and the force sensor 3.

[0062] The present invention arranges the channel 4 in the brake caliper body 2 to include a multi-section structure that is interconnected, namely, includes a lifting section 41, a horizontal section 42 and a vertical section 43 that are connected in sequence, and installs a wire crimping rack 6 on the brake caliper body 2 near the horizontal section 42. The two claws 63 on the wire crimping rack 6 cooperate with the axial and radial limiting of the wiring harness body 11, so that the wiring harness assembly 1 cannot move radially and axially in the direction of outward pulling, thereby avoiding the problem of the wiring harness shaking and easy connection loosening when the brake caliper body 2 vibrates.

[0063] Specifically, the connector I includes a female connector 12 connected to one end of the wiring harness body 11 and a male connector socket 33 arranged on the force sensor 3. The female connector 12 is configured as a multi-core aviation plug, a Fakra plug or a USB plug, wherein the USB plug can adopt a Type-C plug with a smaller volume. A plurality of foolproof mounting blocks 121 are provided at the end of the female connector 12. There are a plurality of foolproof mounting blocks 121, and the shapes of the foolproof mounting blocks 121 are different. The male connector socket 33 is provided with a guide groove 331 for guiding and plugging with the corresponding foolproof mounting blocks 121, thereby realizing the foolproof plugging of the female connector 12 and the male connector socket 33. Of course, the present invention also protects the connector including the male connector socket 33 installed at one end of the wiring harness body 11 and the female connector 12 arranged on the force sensor 3.

[0064] The female end 12 of the connector is provided with two annular bosses spaced along its axial direction, and a sealing ring 122 is sleeved and installed between the two annular bosses. When the female end 12 of the connector with the sealing ring 122 installed is plugged and matched with the male end socket 33 of the connector, the sealing ring 122 is sealed and connected with the inner wall of the male end socket 33 of the connector, which plays a role of waterproof and dustproof, and ensures the reliability of the connection. In addition, a waterproof sealing head 7 is installed at the bottom end of the channel 4, and the waterproof sealing head 7 is tightly connected with the wiring harness body 11 to prevent water and dirt from entering the channel 4. The waterproof sealing head 7 and the sealing ring 122 play a dual waterproof and dustproof effect, further ensuring the reliability of the plug-in connection between the female end 12 of the connector and the male end socket 33 of the connector.

[0065] Embodiment 2

[0066] The difference from the first embodiment is that the lifting section 41 in the channel 4 is set as an arc section or a bending section (not shown in the figure). As long as the channel structure is of any shape from the position below the controller upward, it is within the protection scope of the present invention.

[0067] The method for wiring the EMB brake caliper force sensor using the wiring structures of the first embodiment and the second embodiment is the same, and includes the following steps:

[0068] Step 1: Use the lead tool 8 to be installed on the connector female end 12 at the end of the wiring harness assembly 1, and pull the wiring harness assembly 1 upward from the bottom of the channel 4 and connect it to the force sensor 3 through plugging.

[0069] like Figure 7 and Figure 8 As shown, the lead tooling 8 includes a card connector 81 and a traction rod 82 fixed at one end thereof, and a plurality of fool-proof mounting blocks 121 are circumferentially arranged at one end of the connector female end 12. The card connector 81 is provided with an L-shaped card slot 811 with a top opening along its circumference for rotationally engaging with the corresponding fool-proof mounting block 121. The L-shaped card slot 811 includes an axial slot arranged along the axial direction of the card connector 81 and a circumferential slot arranged along the circumference of the card connector 81. The axial slot and the circumferential slot are connected, and the outer end of the axial slot is opened.

[0070] The specific operation method is as follows: after aligning the multiple fool-proofing mounting blocks 121 on the connector female end 12 with the openings of the axial grooves of the corresponding L-shaped card slots 811, the connector female end 12 is inserted into the card joint 81. After the fool-proofing mounting blocks 121 are inserted into the bottom of the corresponding axial grooves, the connector female end 12 is rotated clockwise or counterclockwise to make the corresponding fool-proofing mounting blocks 121 snap into the circumferential grooves of the L-shaped card slots 811, and the connector female end 12 is pulled axially, and the connector female end 12 is stopped by the L-shaped card slots 811, thereby realizing the positioning connection between the connector female end 12 and the lead tooling 8; after the hand-held traction rod 82 is inserted into the lifting section 41 and the horizontal section 42 of the channel 4, the card joint 81 is rotated to disengage the connector female end 12, and the connector female end 12 is aligned with the connector male end socket 33 on the force sensor 3 and the two are sealed and connected.

[0071] Step 2: Install the wire crimping rack 6 on the horizontal section 42 of the brake caliper body 2 so that the wire crimping rack 6 presses and positions the wire harness body 11 of the wire harness assembly 1 (axial and radial limiting).

[0072] Step 3: Install the waterproof sealing head 7 at the bottom of the channel 4 and hold the wiring harness assembly 1 tightly in place.

[0073] Step 4: After the wiring harness assembly 1 extends out of one end of the channel 4, it is connected to the controller 5 through connector II or connector II, connecting wiring harness, and connector II.

[0074] Embodiment 3

[0075] like Fig.10 As shown, the difference from the first embodiment is that the connection structure between one end of the harness body 11 and the force sensor 3 is different, that is, one end of the harness body 11 is welded to the internal wiring point of the force sensor 3 and then packaged into a whole.

[0076] The axial limiting structure between the two claws 63 and the wiring harness body 11 is different (not shown in the figure), that is, an axial limiting platform 14 that abuts against the bottom end of the corresponding claw 63 is relatively arranged on the outer periphery of the portion of the wiring harness body 11 located in the vertical section 43 of the channel 4, and a positioning section is also relatively arranged on the outer periphery of the portion of the wiring harness body 11 located in the vertical section 43 of the channel 4, and the bottom end of the positioning section is connected to the axial limiting platform 14.

[0077] Therefore, the method of wiring the EMB brake caliper force sensor using the wiring structure of the above structure is also different from that of the first embodiment.

[0078] The specific wiring method includes the following steps:

[0079] Step 1: After the force sensor 3 is placed in the brake caliper body 2, one end of the harness body 11 in the harness assembly 1 is assembled with the force sensor 3, and the free end of the harness body 11 fixedly connected to the force sensor 3 is passed downward from the upper part of the channel 4;

[0080] The specific operation method is: the free end of the harness body 11 passes through the vertical section 43 of the channel 4 and then passes through the horizontal section 42 with an upper opening; then, the horizontal section 42 passes downward through the lifting section 41 and then passes through the channel 4.

[0081] Step 2: Install the wire crimping rack 6 on the horizontal section 42 of the brake caliper body 2 so that the wire crimping rack 6 presses the wire harness assembly 1 into position (axial and radial limiting).

[0082] Step 3: Install the waterproof sealing head 7 at the bottom end of the channel 4 and hold the wiring harness body 11 tightly in place.

[0083] Step 4: Assemble the connector II to one end of the wiring harness body 11 passing through the channel 4;

[0084] Step 5: Connect connector II directly to controller 5, or connect connector II to controller 5 through a connecting harness and connector II.

[0085] In summary, the present invention facilitates the wiring harness of the force sensor to be led out from the inside of the caliper body without increasing the axial height of the brake caliper, can achieve stable positioning and sealing of the wiring harness, and is convenient for installation and removal of the wiring harness, and for maintenance and replacement of various components in the brake caliper.

[0086] The above description is only used to illustrate some principles of the present invention. This specification is not intended to limit the present invention to the specific structure and application scope shown and described. Therefore, all corresponding modifications and equivalents that may be used belong to the patent scope applied for by the present invention.

Claims

1. An EMB brake caliper force sensor wiring structure, characterized in that: It includes a wiring harness assembly and a force sensor installed in a brake caliper body. The brake caliper body is provided with a vertical through-channel for the wiring harness assembly to pass through. One end of the wiring harness assembly is connected to the force sensor, and the other end of the wiring harness assembly is connected to a controller after extending out of the channel.

2. The EMB brake caliper force sensor wiring structure according to claim 1, characterized in that: The wiring harness assembly includes a wiring harness body, one end of which is directly or indirectly connected to the force sensor, and the other end of which is connected to the controller via a connecting component.

3. The EMB brake caliper force sensor wiring structure according to claim 2, characterized in that: The connection assembly includes a connector II or two connectors II connected in series and a connecting harness therebetween.

4. The EMB brake caliper force sensor wiring structure according to claim 2, characterized in that: The channel includes a lifting section, a horizontal section and a vertical section connected in sequence, one end of the harness body is connected to the force sensor after passing through the vertical section, and the other end of the harness body is connected to the connecting component after extending out of the lifting section.

5. The wiring structure of the EMB brake caliper force sensor according to claim 4, characterized in that: A wire pressing rack for pressing and positioning the wire harness body is installed at a position close to the horizontal section on the brake caliper body.

6. The EMB brake caliper force sensor wiring structure according to claim 5, characterized in that: The wire crimping frame includes a clamping plate for clamping the wire harness body, both sides of the clamping plate are connected to the brake caliper body through mounting ears, one end of the clamping plate is provided with two claws, and the two claws are connected to the wire harness body in a limiting manner.

7. The wiring structure of the EMB brake caliper force sensor according to claim 6, characterized in that: The clamping claw is configured as an L-shaped plate, and one end of the wiring harness assembly is provided with an axial limit platform that abuts and cooperates with the bottom end of the corresponding clamping claw.

8. The wiring structure of the EMB brake caliper force sensor according to claim 6, characterized in that: A radial limit platform is provided on the harness body at the intersection of the horizontal section and the vertical section along its radial direction. The radial limit platform is clamped between two claws, and a limit surface on one side of the radial limit platform fits with the vertical surfaces at the roots of the two claws.

9. The wiring structure of the EMB brake caliper force sensor according to claim 4, characterized in that: A waterproof sealing head is installed at the bottom end of the channel, and the waterproof sealing head is tightly connected with the wiring harness body.

10. The EMB brake caliper force sensor wiring structure according to any one of claims 2 to 9, characterized in that: One end of the wiring harness body is connected to the force sensor via connector I.

11. The EMB brake caliper force sensor wiring structure according to claim 10, characterized in that: The connector I includes a female connector connected to one end of the wiring harness body and a male connector socket arranged on the force sensor. The female connector is configured as a multi-core aviation plug, a Fakra plug or a USB plug. The end of the female connector is provided with a plurality of foolproof mounting blocks, and the male connector socket is provided with a guide groove for guiding and plugging with the corresponding foolproof mounting blocks.

12. The EMB brake caliper force sensor wiring structure according to claim 11, characterized in that: A sealing ring is installed on the female end of the connector and is sealed with the male end socket of the connector.

13. The EMB brake caliper force sensor wiring structure according to any one of claims 2 to 9, characterized in that: One end of the wiring harness body is connected to an internal wiring point of the force sensor by welding.

14. A wiring method for an EMB brake caliper force sensor, using the wiring structure according to any one of claims 1 to 12, characterized in that: The following steps are involved: Step 1: Use the lead tool to install it on the female end of the connector at the end of the harness assembly, pull the harness assembly upward from the bottom of the channel and connect it to the force sensor; Step 2: Install the wire crimping rack on the brake caliper body so that the wire crimping rack can press the wire harness assembly into position; Step 3: Install the waterproof sealing head at the bottom of the channel and hold the wiring harness assembly tightly in place; Step 4: Extend the wiring harness assembly out of one end of the channel and connect it to the controller.

15. The EMB brake caliper force sensor wiring method according to claim 14, characterized in that: The lead tooling used in step 1 includes a card connector and a traction rod fixed at one end thereof, a plurality of fool-proof mounting blocks are circumferentially arranged at one end of the female end of the connector, and an L-shaped card slot with an open top that is rotatably engaged with the corresponding fool-proof mounting block is circumferentially arranged on the card connector.

16. A wiring method for an EMB brake caliper force sensor, using the wiring structure as claimed in claim 13, characterized in that: The following steps are involved: Step 1: Pass the harness body of the harness assembly fixedly connected to the force sensor downward from the upper part of the channel; Step 2: Install the wire crimping rack on the brake caliper body so that the wire crimping rack presses the wire harness body into position; Step 3: Pass the waterproof sealing head through the wire harness body and install it at the bottom of the channel, and hold the wire harness body tightly in place; Step 4: Assemble connector II to one end of the harness body passing through the channel; Step 5: Connect connector II to the controller.

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