A force sensor wiring structure and a wiring method for an EMB brake caliper

Abstract

The utility model relates to an EMB brake caliper force sensor wiring structure and wiring method, belong to EMB brake caliper technical field, this EMB brake caliper force sensor wiring structure, including wiring harness assembly and the force sensor of installation in brake caliper body, be provided with the upper and lower through -going passageway of making wiring harness assembly pass through in brake caliper body, one end of wiring harness assembly is connected with force sensor, the other end of wiring harness assembly is connected with controller after the stretch of channel, the beneficial effects of the utility model are that, the utility model in the case where brake caliper does not increase axial height additionally, the wiring of force sensor wiring harness is convenient to go out from the inside of caliper body, can realize the stable positioning and sealing of wiring harness, and it is convenient to install and dismount wiring harness, and it is convenient to maintain replacement to each component in brake caliper.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of EMB brake caliper, and particularly relates to a force sensor wiring structure and wiring method for an EMB brake caliper. BACKGROUND

[0002] In the field of mechanical brake-by-wire systems (Electro-Mechanical Brake, EMB), a force sensor is needed to monitor the wheel end clamping force. The most commonly used force sensor is a ring-shaped force sensor, which is often arranged in the caliper body. When the brake is braking, 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 the closed-loop control of the system.

[0003] However, the existing force sensor wiring method mainly has the following schemes: (1) increasing the distance between the cylinder port bottom surface of the caliper body and the installation surface of the controller, and installing a connector between the two surfaces; (2) giving way to the wire harness or busbar of the gear and other components of the controller, so that the signal can be transmitted inside the controller.

[0004] The above schemes solve the wiring problem of the force sensor, but increase the axial size and weight of the brake caliper. In the prior art, the relative position between the brake caliper A, the rim B and the air spring C in high-end vehicles is: the brake caliper A is arranged in the rim B along the axial direction, the air spring C is located inside the rim B, and the air spring C is separated from the brake caliper A along the axial direction by a distance. Since the existing high-end vehicles contain the air spring C, the arrangement of the air spring C has high requirements for the axial size of the brake caliper A. If the axial size of the brake caliper A is too large, it will affect the arrangement of the air spring C, and also adversely affect the performance of the brake caliper A.

[0005] A force sensor is disclosed in the patent with the publication number CN115773833A, which includes a metal base, a base body with a longitudinally extending via hole in the center, a first flange formed by the lateral extension of the longitudinal proximal end of the base body outward; a sealing groove is formed on the inner wall of the base body; a sealing ring is arranged in the sealing groove; a sealing cover is arranged on the longitudinal distal side of the base body and surrounds the sealing cavity with the metal base; at least two pressure sensitive resistors are located in the sealing cavity, the pressure sensitive resistors are correspondingly arranged on the insulating base arranged on the proximal end face of the base body; and a circuit board is located in the sealing cavity and arranged on the proximal end face of the base body, the peripheral edge of the circuit board is provided with a plurality of displacement slots which avoid the insulating base in the vertical plane, and the pressure sensitive resistors are electrically connected with the circuit board. The patent only discloses the structure of the force sensor, but does not disclose the wiring structure of the force sensor, cannot solve the technical problems raised in the present application, and does not give technical inspiration to solve the technical solutions of the present application. SUMMARY

[0006] In order to solve the above technical problems, the application provides a force sensor wiring structure and wiring method for an EMB brake caliper, which can facilitate the wire harness of the force sensor to exit from the inside of the caliper body without increasing the axial height of the brake caliper, can realize stable positioning and sealing of the wire harness, and facilitates the installation and disassembly of the wire harness and the maintenance and replacement of components in the brake caliper.

[0007] To achieve the above object, the application adopts the technical scheme of a force sensor wiring structure for an EMB brake caliper, which comprises a wire harness assembly and a force sensor installed in a brake caliper body, the brake caliper body is provided with an up-down through channel through which the wire harness assembly passes, one end of the wire harness assembly is connected with the force sensor, and the other end of the wire harness assembly is connected with a controller after extending out of the channel.

[0008] The wire harness assembly comprises a wire harness body, one end of the wire harness body is directly or indirectly connected with the force sensor, and the other end of the wire harness body is connected with the controller through a connecting assembly.

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

[0010] The channel comprises a lifting section, a horizontal section and a vertical section connected in sequence, one end of the wire harness body is connected with the force sensor through the vertical section, and the other end of the wire harness body is connected with the connecting assembly after extending out of the lifting section.

[0011] A wire pressing frame for pressing and positioning the wire harness body is installed on the brake caliper body near the horizontal section.

[0012] The wire pressing frame comprises a pressing plate for pressing the wire harness body, both sides of the pressing plate are connected with the brake caliper body through mounting lugs, and one end of the pressing plate is provided with two clamping jaws connected with the wire harness body in position.

[0013] The clamping jaw is provided as an L-shaped plate, and one end of the wire harness assembly is provided with an axial limiting table abutting against the bottom end of the corresponding clamping jaw.

[0014] A radial limiting table is arranged on the wire harness body at the intersection of the horizontal section and the vertical section along the radial direction, the radial limiting table is clamped between the two clamping jaws, and the limiting surface on one side of the radial limiting table is in close contact with the vertical surface at the root of the two clamping jaws.

[0015] A waterproof sealing head is installed at the bottom end of the channel, and the waterproof sealing head is connected with the wire harness body in a tight manner.

[0016] One end of the wire harness body is connected with the force sensor through a connector I.

[0017] The connector I includes a female connector connected to one end of the wire harness body and a male connector socket provided on the force sensor, the female connector is provided as a multi-core aviation plug, a fakra plug or a USB plug, and 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 matched with the corresponding foolproof mounting block.

[0018] The female connector is provided with a sealing ring matched with the male connector socket.

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

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

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

[0022] Step 2: install the wire pressing frame on the brake caliper body to press and position the wire harness assembly;

[0023] Step 3: install the waterproof sealing head at the bottom end of the channel and hold the wire harness assembly tightly;

[0024] Step 4: connect the wire harness assembly to the controller after extending out of the channel.

[0025] The lead tool used in step 1 includes a clamping head and a traction rod fixed at one end of the clamping head, one end of the female connector is provided with a plurality of foolproof mounting blocks in the circumferential direction, and the clamping head is provided with an L-shaped clamping groove in the circumferential direction, which is matched with the corresponding foolproof mounting block in rotation and has an open top.

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

[0027] Step 1: pass the wire harness body of the wire harness assembly fixedly connected to the force sensor out of the channel from the top down;

[0028] Step 2: install the wire pressing frame on the brake caliper body to press and position the wire harness body;

[0029] Step 3: pass the waterproof sealing head through the wire harness body and install it at the bottom end of the channel to hold the wire harness body tightly;

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

[0031] Step 5: connect the 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 extends out of the channel and is connected to the controller. Without increasing the axial height of the brake caliper, the present invention meets the layout requirements of the air spring on high-end vehicles. In addition, the wiring harness assembly is easy to disassemble and install, and the controller connected to it is easy to repair and replace, thereby reducing maintenance costs.

[0034] 2. The present invention arranges the channel in the brake caliper body into a multi-section structure that is interconnected, i.e., 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 near 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 pull-out, thereby avoiding the problem of the wiring harness shaking and easily loose connection when the brake caliper body vibrates.

[0035] 3. The present invention comprises connector I on the wiring harness assembly, which 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 female connector is provided with a plurality of foolproof mounting blocks, which can not only realize foolproof plugging with the male connector socket on the force sensor, but also realize pulling and threading of the wiring harness assembly in the channel by rotating and clamping the lead tool and the foolproof mounting block, making the installation of the wiring harness assembly faster and more convenient. A sealing ring is provided on the female connector, and a sealing fit can be realized after the female connector is connected to the male connector socket on the force sensor. In addition, a waterproof sealing head is installed at the bottom end of the channel to hug the wiring harness, which has the effect of dustproof and waterproof, thereby ensuring the accuracy and reliability of signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0041] Figure 5 Fig. 1 is a structural schematic diagram of a connector male socket matched with the connector female end in the force sensor in the embodiment one of the present application;

[0042] Figure 6 Fig. 2 is a structural schematic diagram of a connector female matched with the lead tool in the embodiment one of the present application;

[0043] Figure 7 Fig. 3 is a structural schematic diagram of the lead tool in the embodiment one of the present application; Figure 6 Fig. 4 is a structural schematic diagram of the wire press in the embodiment one of the present application;

[0044] Figure 8 Fig. 5 is a structural schematic diagram of the wire press and the wire harness body limiting cooperation in the embodiment one of the present application;

[0045] Figure 9 Fig. 6 is a structural schematic diagram of the wire press and the wire harness body limiting cooperation in the embodiment one of the present application; Figure 1 Fig. 7 is a structural schematic diagram of the force sensor wiring structure for the EMB brake caliper in the embodiment three of the present application;

[0046] Figure 10 Fig. 8 is a structural schematic diagram of the force sensor wiring structure for the EMB brake caliper in the embodiment three of the present application;

[0047] The marks in the above figures are as follows: A. brake caliper, B. wheel rim, C. air spring, 1. wire harness assembly, 11. wire harness body, 12. connector female end, 121. foolproof installation block, 122. sealing ring, 13. connector II plug, 14. axial limiting table, 15. radial limiting table, 2. brake caliper body, 3. force sensor, 31. sensor body, 32. circuit board, 33. connector male socket, 331. guide groove, 4. channel, 41. lifting section, 42. horizontal section, 43. vertical section, 5. controller, 6. wire press, 61. pressing plate, 62. installation lug, 63. claw, 7. waterproof sealing head, 8. lead tool, 81. clamping head, 811. L-shaped clamping groove, 82. traction rod, 9. lead screw shaft, 10. lead screw nut. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below in combination with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0049] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0050] In the description of the present application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] The present application provides a force sensor wiring structure for EMB brake caliper, and the specific structure thereof is specifically described in the following embodiments.

[0052] Embodiment one

[0053] As shown in Figure 1 and Figure 2 , a force sensor wiring structure for EMB brake caliper, comprising a wire harness assembly 1 and a force sensor 3 mounted in a brake caliper body 2, the brake caliper body 2 is provided with an upper and lower through channel 4 for the wire harness assembly 1 to pass through, one end of the wire harness assembly 1 is connected with the force sensor 3 after passing through the channel 4, the other end of the wire harness assembly 1 is connected with a controller 5 after extending out of the channel 4, the present application meets the arrangement requirements of air spring on high-end cars without increasing the axial height of the brake caliper, and the wire harness assembly 1 is convenient to disassemble and install, which makes the controller 5 connected therewith convenient to maintain and replace, and reduces the maintenance cost.

[0054] Specifically, as shown in Figure 2 , the force sensor 3 therein is a ring-shaped force sensor 3, which is sleeved on a screw shaft 9 and is tightly mounted between the brake caliper body 2 and the upper end surface of the screw shaft 9, the force sensor 3 comprises a sensor body 31, the sensor body 31 comprises a metal diaphragm in contact with a screw nut 10, the upper surface of the metal diaphragm is sintered with a silicon strain gauge through glass powder, the sensor body 31 is provided with a circuit board 32, and the circuit board 32 is fixedly connected with a connector male socket 33 through welding or riveting. The structure of the force sensor 3 therein and its working principle are both prior art, which will not be described here.

[0055] Specifically, as shown in Figures 2 to 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 via the connector female end 12. The other end of the wiring harness body 11 is connected to the controller 5 via connector II, or the other end of the wiring harness body 11 is connected to the controller 5 via connector II, a connecting wire harness, and connector II. Connector II includes a connector II plug 13 connected to one end of the wiring harness body 11 and a connector II socket mounted on the controller 5. Connector II plug 13 plugs into the connector II socket to achieve 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 arranged from the outside to the inside on the brake caliper body 2 and connected in sequence, wherein the lifting section 41 is arranged as an inclined section, and the female end of the connector 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 be plugged into and connected with the force sensor 3.

[0057] Specifically, if Figure 1 、 Figure 8 and Figure 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 pressing plate 61 that compresses the wiring harness body 11. Both sides of the pressing plate 61 are connected to the brake caliper body 2 via mounting lugs 62. One end of the pressing plate 61 is provided with two claws 63, which are connected to the wiring harness body 11 in a limited manner. The limiting structure between the two claws 63 and the wiring 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. The two opposite sides of the connector female end 12 are axially provided with positioning sections, and the bottom ends of the positioning sections are connected to the axial limiting platforms 14. After one end of the wiring harness body 11 is installed in place through the connector I and the force sensor 3, and the wire crimping frame 6 is also installed in place, after the two claws 63 are clamped on the positioning sections 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 being pulled out.

[0060] The radial limiting structure is that a radial limiting platform 15 is arranged on the line harness body 11 at the intersection of the horizontal section 42 and the vertical section 43 along the radial direction, the radial limiting platform 15 is clamped between the two clamping claws 63, so that the line harness assembly cannot move radially in the direction of pulling out, and the limiting surface on one side of the radial limiting platform 15 is in close contact with the vertical surface at the root of the two clamping claws 63, thereby achieving the function of secondary axial limiting.

[0061] When the wire pressing frame 6 is installed and positioned at the corresponding position on the brake caliper body 2, the pressing plate 61 horizontally presses the line harness body 11, the two clamping claws 63 extend into the vertical section 43 of the channel 4, the inner side surface of the two clamping claws 63 is in close contact with the radial limiting platform 15 on the line harness body 11, and the bottom end of the two clamping claws 63 leaves a certain installation gap with the upper end surface of the corresponding axial limiting platform 14, thereby achieving the axial and radial limiting of the line harness body 11, ensuring that the connector female end 12 can be installed in place, avoiding the disconnection of the connector female end 12 from the connector male end socket 33, and further ensuring the reliability of the connection between the line harness assembly 1 and the force sensor 3.

[0062] The application sets the channel 4 in the brake caliper body 2 as a multi-section structure including the lifting section 41, the horizontal section 42 and the vertical section 43 connected in sequence, installs the wire pressing frame 6 on the brake caliper body 2 near the horizontal section 42, and the two clamping claws 63 on the wire pressing frame 6 are in axial and radial limiting cooperation with the line harness body 11, so that the line harness assembly 1 cannot move radially and axially in the direction of pulling out, thereby avoiding the problem that the line harness is easily loosened due to shaking under the vibration of the brake caliper body 2.

[0063] Specifically, the connector I includes the connector female end 12 connected to one end of the line harness body 11 and the connector male end socket 33 arranged on the force sensor 3, the connector female end 12 is arranged as a multi-core aviation plug, a fakra plug or a USB plug, and the USB plug can adopt a Type-C plug with a small size. The end of the connector female end 12 is provided with a plurality of foolproof mounting blocks 121, the foolproof mounting blocks 121 are arranged in multiple and different shapes, and the connector male end socket 33 is provided with a guide groove 331 in guided plug-in cooperation with the corresponding foolproof mounting block 121, thereby achieving the foolproof plug-in of the connector female end 12 and the connector male end socket 33. Of course, the application also protects the connector including the connector male end socket 33 mounted on one end of the line harness body 11 and the connector female end 12 arranged on the force sensor 3.

[0064] The connector female end 12 is provided with two annular bosses along the axial direction, and a sealing ring 122 is sleeved between the two annular bosses. When the connector female end 12 provided with the sealing ring 122 is plugged into the connector male socket 33, the sealing ring 122 is sealed with the inner wall of the connector male socket 33, thereby preventing water and dust from entering, and ensuring the reliability of the connection. In addition, the bottom end of the channel 4 is provided with a waterproof sealing head 7, which is tightly connected with the wire harness body 11, thereby preventing water and dirt from entering the channel 4. The waterproof sealing head 7 and the sealing ring 122 have a double waterproof and dustproof effect, thereby further ensuring the reliability of the connection between the connector female end 12 and the connector male socket 33.

[0065] Embodiment two

[0066] The difference between the embodiment one and the embodiment two is that the lifting section 41 in the channel 4 is provided as an arc-shaped section or a bent section (not shown in the figure). Any channel structure with an arbitrary shape from the position below the controller to the upward position is within the protection scope of the present application.

[0067] The wiring method of the force sensor for the EMB brake caliper using the wiring structure of the above-mentioned embodiment one and embodiment two is the same, which includes the following steps:

[0068] Step 1: The lead wire tool 8 is installed on the connector female end 12 at the end of the wire harness assembly 1, and the wire harness assembly 1 is pulled upward from the bottom of the channel 4 and connected with the force sensor 3.

[0069] As shown in Figure 7 and Figure 8 , the lead wire tool 8 includes a clamping head 81 and a traction rod 82 fixed at one end of the clamping head 81. The connector female end 12 is provided with a plurality of foolproof mounting blocks 121 at one end along the circumferential direction. The clamping head 81 is provided with a top-open L-shaped clamping groove 811 along the circumferential direction, which is rotationally clamped and matched with the corresponding foolproof mounting block 121. The L-shaped clamping groove 811 includes an axial groove and a circumferential groove, which are communicated and the outer end of the axial groove is open.

[0070] The specific operation method is: 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, and 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 be stuck in 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 handheld 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 frame 6 on the horizontal section 42 of the brake caliper body 2 so that the wire crimping frame 6 presses the wire harness body 11 of the wire harness assembly 1 into position (axial and radial limitation).

[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: Extend the wiring harness assembly 1 out of one end of the channel 4 and connect it to the controller 5 through connector II or connector II, the wiring harness, and connector II.

[0074] Example 3

[0075] like Figure 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 connection 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 is relatively arranged on the outer periphery of the part of the wiring harness body 11 located in the vertical section 43 of the channel 4, which abuts against the bottom end of the corresponding claw 63. A positioning section is also relatively arranged on the outer periphery of the part 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 described above is also different from that in 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 wire harness body 11 in the wire harness assembly 1 is assembled with the force sensor 3, and the free end of the wire harness body 11 fixedly connected with the force sensor 3 is led out downward from the upper part of the channel 4;

[0080] The specific operation method is: the free end of the wire harness body 11 is led out after passing through the vertical section 43 of the channel 4, and then led out from the horizontal section 42 of the upper opening; then led out from the channel 4 after passing through the lifting section 41 downward from the horizontal section 42.

[0081] Step 2: install the wire pressing frame 6 on the horizontal section 42 of the brake caliper body 2, so that the wire pressing frame 6 tightly positions (axially and radially limits) the wire harness assembly 1.

[0082] Step 3: install the waterproof sealing head 7 at the bottom end of the channel 4 and tightly position the wire harness body 11.

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

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

[0085] In summary, the wire harness of the force sensor can be led out from the inside of the caliper body without increasing the axial height of the brake caliper, the stable positioning and sealing of the wire harness can be realized, and the installation and disassembly of the wire harness are facilitated, and the maintenance and replacement of various components in the brake caliper are facilitated.

[0086] The above is only to illustrate some principles of the present application by means of figures, and this specification is not intended to limit the present application to the specific structure and application range shown and described, so all possible corresponding modifications and equivalents belong to the patent scope applied by the present application.

Claims

1. An EMB brake caliper force sensor wiring structure, characterized in that: The brake caliper comprises a wiring harness assembly and a force sensor installed in the 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 extends out of the channel and is connected to a controller. 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; the connecting component includes a connector II or two connectors II connected in series and a connecting harness therebetween; The channel includes a lifting section, a horizontal section and a vertical section connected in sequence. A wire crimping rack for pressing and positioning the wiring harness body is installed at a position close to the horizontal section on the brake caliper body. The wire crimping rack includes a pressing plate for pressing the wiring harness body. Both sides of the pressing plate are connected to the brake caliper body through mounting ears. One end of the pressing plate is provided with two claws, and the two claws are connected to the wiring harness body in a limiting manner. A radial limit platform is provided along the radial direction of the wiring harness body at the intersection of the horizontal section and the vertical section. The radial limit platform is clamped between the two claws, and the limiting surface on one side of the radial limit platform is in contact with the vertical surface of the root of the two claws.

2. The EMB brake caliper force sensor wiring structure according to claim 1, characterized in that: One end of the wiring harness body is connected to the force sensor after passing through the vertical section, and the other end of the wiring harness body is connected to the connecting component after extending out of the lifting section.

3. The EMB brake caliper force sensor wiring structure according to claim 1, 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.

4. The EMB brake caliper force sensor wiring structure according to claim 1, characterized in that: A waterproof sealing head is installed at the bottom end of the channel, and the waterproof sealing head is tightly connected to the wiring harness body.

5. The EMB brake caliper force sensor wiring structure according to any one of claims 1 to 4, characterized in that: One end of the wiring harness body is connected to the force sensor via connector I.

6. The EMB brake caliper force sensor wiring structure according to claim 5, 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 multiple fool-proof mounting blocks, and the male connector socket is provided with a guide groove for guiding and plugging with the corresponding fool-proof mounting blocks.

7. The EMB brake caliper force sensor wiring structure according to claim 6, characterized in that: The female end of the connector is provided with a sealing ring which is in sealing cooperation with the male end socket of the connector.

8. The EMB brake caliper force sensor wiring structure according to any one of claims 1 to 4, characterized in that: One end of the wiring harness body is connected to an internal wiring point of the force sensor by welding.

9. A wiring method for an EMB brake caliper force sensor, using the wiring structure according to any one of claims 1 to 7, 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 stand on the brake caliper body so that the wire crimping stand presses 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.

10. The EMB brake caliper force sensor wiring method according to claim 9, characterized in that: The lead tooling used in step 1 includes a card connector and a traction rod fixed at one end thereof, and a plurality of fool-proof mounting blocks are circumferentially arranged at one end of the female end of the connector. An L-shaped card slot with an open top is circumferentially arranged on the card connector, which is rotatably engaged with the corresponding fool-proof mounting block.

11. A wiring method for an EMB brake caliper force sensor, using the wiring structure according to claim 8, characterized in that: The following steps are involved: Step 1: Pass the wiring harness body of the wiring harness assembly that is 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 wiring harness body and install it at the bottom of the channel, holding the wiring 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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