An electrical connection structure

Abstract

An electrical connection structure is disclosed, relating to the field of automotive brake-by-wire technology, to address the problems of complex structure, cumbersome assembly, and poor vibration resistance in existing technologies. The electrical connection structure includes mounting components, a wiring harness, a locking claw, a positioning shaft, and a compression spring. Two mounting components are provided, distributed opposite each other along a first direction. Each mounting component has a wire-locking groove on one side wall perpendicular to the first direction, with the grooves on the two mounting components respectively positioned opposite each other along the first direction and in the opposite direction. The wiring harness has terminals at both ends, which are press-fitted into the two locking grooves on the two mounting components. The length of the wiring harness is greater than the distance between the two locking grooves. A locking claw is fixedly mounted on one mounting component, extending beyond the mounting component along the first direction. A corresponding locking groove is provided on the other mounting component, with the locking claw extending into the locking groove to engage the two mounting components. The locking groove has an excess portion.

Description

Technical Field

[0001] This application relates to the field of automotive brake-by-wire technology, and more particularly to an electrical connection structure. Background Technology

[0002] Automotive brake-by-wire systems abandon the traditional mechanical hydraulic transmission structure and rely entirely on electrical signal commands to achieve braking control, which places high demands on the reliability of the electrical connection and the stability of signal transmission between the motor position sensor and the controller.

[0003] Currently, traditional electrical connection structures mostly use welding, bolt tightening, and independent clip fixing methods, resulting in a large number of components, cumbersome assembly processes, and low structural integration. Bumps and vibrations during vehicle operation, as well as impact loads during braking, can easily cause problems such as loose terminals, detached solder joints, and broken wiring harnesses in traditional connection structures. This can lead to sensor signal interruption and transmission distortion, directly causing abnormal response of the brake-by-wire system and posing a significant driving safety hazard. Summary of the Invention

[0004] This application provides an electrical connection structure to solve the problems of complex structure, cumbersome assembly, and poor seismic resistance in the prior art.

[0005] This application provides an electrical connection structure, including a mounting component, a wiring harness, a chuck, a positioning shaft, and a compression spring.

[0006] Two mounting components are provided, which are distributed opposite to each other along the first direction. A wire-locking groove is provided on one side wall of the mounting component perpendicular to the first direction. The wire-locking grooves on the two mounting components are respectively arranged opposite to each other along the first direction and the opposite direction of the first direction.

[0007] Both ends of the wire harness are provided with wire harness terminals. The two wire harness terminals are respectively pressed into the two wire clamping slots on the two mounting parts. The length of the wire harness is greater than the distance between the two wire clamping slots.

[0008] The claw is fixedly mounted on a mounting component, and the claw extends out of the mounting component along a first direction. A corresponding engagement groove is provided on another mounting component, and the claw extends into the engagement groove to engage the two mounting components. The engagement groove has an excess portion, which allows the two mounting components to move closer to each other along the first direction.

[0009] The positioning shaft extends along the first direction. Along the axis of the positioning shaft, the two mounting parts are respectively designed with positioning holes. The two ends of the positioning shaft extend into the two positioning holes of the two mounting parts respectively. A positioning allowance is provided between the positioning shaft and the bottom wall of the positioning hole. The positioning allowance allows the two mounting parts to move closer to each other along the first direction.

[0010] The compression spring is mounted on the positioning shaft, with its two ends abutting against the two walls of the two mounting parts, and the compression spring is compressed between the two mounting parts.

[0011] The two relatively distributed mounting parts in this application, together with the relatively arranged wire clamping grooves, realize the alignment and pressing fixation of the wire harness terminals at both ends. Compared with the traditional welding and bolt tightening connection method, no additional fastening accessories are required, which greatly simplifies the overall assembly structure, reduces the number of parts and assembly processes, and is more suitable for the miniaturization and integration design requirements of automotive braking systems.

[0012] The design of the wire harness length being greater than the distance between the two wire slots allows for a slack allowance after the wire harness is assembled, which can effectively avoid the risk of the wire harness being stretched or broken under vehicle vibration conditions, and improve the stability and safety of the electrical connection from the wire harness connection level.

[0013] The snap-fit ​​between the claw and the snap-fit ​​groove enables the rapid alignment and assembly of the two mounting parts. The snap-fit ​​groove has an extra portion, which, together with the positioning allowance between the positioning shaft and the positioning hole, provides a buffer space for the relative displacement of the two mounting parts. Combined with the guiding and limiting function of the positioning shaft, it not only ensures the assembly alignment accuracy, but also adapts to the slight displacement compensation under vibration environment.

[0014] The combination of the positioning shaft and the compression spring ensures that the two mounting parts are always in an elastically compressed state. The elastic buffering characteristics of the compression spring can effectively absorb the high-frequency vibrations generated during vehicle driving and braking, avoiding problems such as loose mounting parts, terminal detachment, and poor circuit contact. This significantly improves the overall shock resistance of the structure, ensures the continuity and stability of sensor signal transmission in the brake-by-wire system, and eliminates braking safety hazards caused by signal interruption or contact failure.

[0015] In some embodiments of this application, multiple wire harnesses are provided, and multiple wire-locking slots are provided on each mounting component. The multiple wire-locking slots and multiple wire harnesses are provided in a one-to-one correspondence, and the multiple wire-locking slots are spaced apart on the side wall of the mounting component along a first direction.

[0016] When a car's drive-by-wire motor is working, it needs to transmit multiple signals such as position feedback, speed signal, and ground signal. The structure of multiple wire harnesses and multiple wire slots for independent matching can realize the independent installation and fixation of each electrical circuit, avoiding the problems of multiple wires stacking, tangling and interference under a single wire harness fixing structure.

[0017] The layout of multiple sets of cable trays arranged at intervals ensures that the terminals of each wire harness are subjected to uniform force, preventing single wire harnesses from becoming loose due to overload under vibration conditions. This further improves the overall seismic stability of multi-circuit electrical connections. Moreover, the modular corresponding structure eliminates the need for additional isolation and fixing accessories, thus achieving the goals of multi-signal transmission requirements, structural simplification, and safety and seismic resistance.

[0018] In some embodiments of this application, a plurality of wire slots on a mounting component are provided on two opposite sidewalls of the mounting component.

[0019] This structure enables double-sided layered arrangement of wire harnesses, making reasonable use of the three-dimensional space of the mounting components, greatly improving space utilization, adapting to the narrow and compact assembly space inside the automotive braking system, and avoiding the problems of local bulkiness and assembly interference caused by the concentrated single-sided arrangement of multiple wire harnesses.

[0020] The double-sided distributed cable tray layout can balance the force distribution on both sides of the mounting component, avoid uneven structural stress and vibration displacement caused by concentrated fixing of wire harnesses on one side, further enhance the overall structure's resistance to vibration and displacement, and ensure the long-term stable operation of multiple electrical connections.

[0021] In some embodiments of this application, at least two positioning shafts and compression springs are provided, with at least two positioning shafts and at least two compression springs arranged in a one-to-one correspondence. Each mounting component is provided with a positioning hole corresponding to each positioning shaft, and at least two positioning shafts are arranged at intervals along the distribution direction of the wire harness.

[0022] A single positioning and buffer structure can only achieve single-point support and limitation, with a limited seismic buffering range. However, a structure with multiple positioning shafts and compression springs that correspond one-to-one and are evenly arranged can provide multi-point guidance, limitation and elastic buffering for the overall contour of the two mounting components. This solves the problems of insufficient local vibration attenuation and tilting and offset of mounting components caused by single-point buffering, and improves the overall seismic performance of the structure.

[0023] The multi-point positioning structure can also accurately constrain the assembly position of the mounting parts, ensure the alignment accuracy of multiple sets of wire slots and wire harness terminals, and avoid poor contact caused by assembly misalignment. The multi-point symmetrical elastic clamping structure also makes the overall fastening force distribution more uniform, and improves the connection reliability of the connection structure without increasing the complexity of the assembly structure.

[0024] In some embodiments of this application, the total length of the two mounting components along the first direction after being snapped together by the claws and the slots is g, and the total length of the wire harness is a, where g+10≤a and g+5≥a.

[0025] The numerical design of g+10≤a and g+5≥a ensures that the wiring harness is always kept in a reasonable slack state. This avoids the wiring harness being too small and being pulled tight or broken when subjected to vibration or slight displacement of components, thus ensuring the safety and continuity of electrical connections. It also eliminates the safety hazards caused by excessive wiring harness slack, such as redundant accumulation, bending interference, wear and short circuits, while avoiding redundant wiring harnesses occupying too much internal space of the braking system.

[0026] This configuration design eliminates the need for additional wiring harness limiting and storage structures. By simplifying the overall structure, it maximizes the balance between the wiring harness's shock absorption and spatial layout requirements, significantly improving the product's operational stability and safety.

[0027] In some embodiments of this application, when the claw is only provided on one mounting member, along the first direction, the length of the mounting member with only the claw is e, and the length of the mounting member with only the snap-fit ​​groove is f, and at this time g+5=e+f.

[0028] By precisely matching e+f=g+5, the optimal slack margin of the wire harness can be accurately matched, allowing the asymmetrical structure of the single-sided claw and single-sided locking groove to achieve the best performance in terms of stress and displacement compensation. This effectively solves the problems of uneven stress and displacement deviation that are prone to occur in asymmetrical connection structures, ensuring that the relative displacement of the mounting parts on both sides is always within a reasonable range under vibration conditions, and avoiding structural misalignment and terminal disconnection.

[0029] Furthermore, standardized dimensional proportions can simplify product design and processing, reduce dimensional adjustment procedures, and lower the complexity of structural design. While ensuring the safety and seismic resistance of asymmetrical structural connections, it can further optimize the adaptability and simplification of the overall structure.

[0030] In some embodiments of this application, multiple claws are provided, and the multiple claws are distributed at intervals. Multiple locking slots are provided, and the multiple locking slots are configured to correspond one-to-one with the multiple claws.

[0031] Under high-frequency vibration and impact conditions in automotive brake-by-wire systems, single-point locking is prone to loosening and disengagement. However, a multi-set, spaced-out locking structure can achieve multi-point locking, evenly dispersing vibration and impact forces, avoiding structural failure caused by local stress concentration, and improving the overall vibration and impact resistance of the structure. At the same time, the modular matching design of multiple sets of claws and locking slots results in a neat structure, eliminates the need for additional locking accessories, and facilitates assembly.

[0032] In some embodiments of this application, multiple claws are respectively disposed on two mounting members, and a locking slot and a claw correspond to each other and are respectively disposed at corresponding positions on the two mounting members.

[0033] The symmetrical multi-point snap-fit ​​structure allows the two mounting parts to receive forces completely evenly, thoroughly solving the problems of structural offset and uneven force caused by single-sided snap-fit ​​and asymmetrical snap-fit. This greatly improves the stability and rigidity of the overall connection structure. When facing the alternating vibration and impact load of the braking system, it can effectively offset the vibration stress in all directions and prevent structural loosening and misalignment failure.

[0034] The double-sided alignment and snap-fit ​​structure allows for more precise assembly and a higher tolerance for assembly errors. It eliminates the need for complex alignment tooling, further simplifying the assembly process and making it suitable for industrialized mass production.

[0035] In some embodiments of this application, the cable slot includes a plug-in portion and a crimping portion, the wire harness terminal portion is plugged into the plug-in portion, the plug-in portion passes through the mounting member along a first direction, and the crimping portion and the plug-in portion are connected.

[0036] The plug-in part passes through the mounting piece along the first direction, which can realize the quick alignment and plug-in positioning of the wire harness terminals, and initially complete the pre-fixation of the wire harness, reducing the assembly difficulty; the connected crimping part can press and limit the plugged terminals, realize the firm fixation of the terminals, and prevent the terminals from axial movement and radial displacement under vibration conditions.

[0037] Compared to traditional single-slot structures, this composite slot structure combines positioning and fastening functions, eliminating the need for additional adhesive bonding or clip-on fixing methods. This further simplifies the overall assembly structure and process, while effectively improving the connection strength of the wire harness terminals, enhancing shock resistance, and preventing safety issues such as poor signal contact and circuit breaks caused by loose terminals. It also meets the high-precision signal transmission requirements of wire control braking.

[0038] In some embodiments of this application, the electrical connection structure further includes a retaining housing and a fixing pin. The retaining housing is provided through both ends along the first direction. After the two mounting parts are snapped together, they are slidably disposed in the retaining housing along the first direction. The mounting parts are provided with strip grooves. The strip grooves are provided on the wall surface of the mounting parts parallel to the first direction. The strip grooves and the wire clamping grooves are provided independently of each other. The strip grooves extend in a direction perpendicular to the first direction.

[0039] One of the two slots on the two mounting pieces extends through the outer wall of the retaining housing, and a fixing pin is inserted into the slot to fix the mounting piece relative to the retaining housing.

[0040] The sliding assembly structure that allows the two mounting parts to pass through both ends of the housing can be used to wrap and limit the two mounting parts after they are snapped together. This does not affect the function of buffering and elastic shock absorption of the mounting parts for slight displacement, but also restrains the external displacement of the overall structure and resists the impact of external vibration and impact on the internal connection structure, thereby further improving the overall seismic stability. The independently set strip groove and the wire clamping groove do not interfere with each other, avoiding the impact of the fixed structure on the wiring harness connection accuracy and ensuring the stability of the electrical connection.

[0041] The single-sided strip groove runs through the housing and is matched with a fixing pin for limiting, which can realize the quick positioning and fixing of a single mounting part to the housing, and complete the integrated assembly of the overall structure. This eliminates the need for multiple fixing parts and simplifies the overall integrated structure.

[0042] By integrating shock absorption, limiting, and fixed functions, the system reduces the number of parts and optimizes the assembly process, while significantly improving the structural integrity and operational reliability of the entire electrical connection assembly, thus comprehensively ensuring the safety and stability of the connection between sensors and controllers in the automotive brake-by-wire system. Attached Figure Description

[0043] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0044] Figure 1 This is one of the three-dimensional structural diagrams of the electrical connection structure provided in the embodiments of this application.

[0045] Figure 2 This is a top view of the electrical connection structure provided in an embodiment of this application.

[0046] Figure 3 This is a schematic diagram of the wire harness components in the electrical connection structure provided in the embodiments of this application.

[0047] Figure 4 This is a schematic diagram of the independent parts of the mounting components and the jaws in the electrical connection structure provided in the embodiments of this application.

[0048] Figure 5 This is one of the cross-sectional schematic diagrams of the electrical connection structure provided in the embodiments of this application.

[0049] Figure 6 A front view of the electrical connection structure provided in an embodiment of this application.

[0050] Figure 7 This is a second three-dimensional structural diagram of the electrical connection structure provided in the embodiments of this application.

[0051] Figure 8 This is a schematic diagram of the mounting components and wiring harnesses for the electrical connection structure provided in the embodiments of this application.

[0052] Figure 9 This is the third three-dimensional structural diagram of the electrical connection structure provided in the embodiments of this application.

[0053] Figure 10 This is a second cross-sectional schematic diagram of the electrical connection structure provided in the embodiments of this application.

[0054] Figure 11 This is a schematic diagram of the electrical connection structure after the protective housing is installed, as provided in the embodiments of this application.

[0055] Figure 12 This is a cross-sectional schematic diagram of the electrical connection structure after the protective housing is installed, as provided in an embodiment of this application.

[0056] Reference numerals: 1-Mounting component; 11-Wire slot; 111-Plug-in part; 112-Crimping part; 2-Wire harness; 21-Wire harness terminal; 3-Claw; 31-Snap-in groove; 4-Positioning shaft; 41-Positioning hole; 5-Compression spring; 6-Retaining housing; 61-Limiting block; 7-Fixing pin. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0059] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0061] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0062] Automotive brake-by-wire systems abandon the traditional mechanical hydraulic transmission structure and rely entirely on electrical signal commands to achieve braking control, which places high demands on the reliability of the electrical connection and the stability of signal transmission between the motor position sensor and the controller.

[0063] In addition to direct welding, traditional electrical connection structures at present also include the following configuration methods.

[0064] The assembly process of its structure is as follows: the PCB and the terminal contact are connected by a flexible plate (FFC), the flexible plate is connected to the PCB and the terminal by laser welding process, the welded flexible plate is then assembled with two cages, and the springs and protective covers are installed after the two cages are hot-riveted.

[0065] This structure can achieve a certain range of flexible self-centering effect, preventing the product from cracking due to excessive force. However, the structure of this solution is complex, with high precision, high cost, complex manufacturing process, and high welding precision. It is difficult to achieve automated assembly, making it difficult to promote.

[0066] Therefore, please refer to Figure 1 This application provides an electrical connection structure, including two mounting parts 1, a wire harness 2, a claw 3, a positioning shaft 4, and a compression spring 5.

[0067] Please refer to Figure 1 and Figure 2 The entire installation component 1 is made of high-strength engineering plastic injection molding. The material has the characteristics of insulation, anti-aging, vibration resistance, and resistance to high and low temperature environments in vehicles. The whole is a regular block structure with high structural strength and light weight, which can effectively avoid the problems of easy conductivity, easy corrosion, and heavy weight of metal materials.

[0068] Please refer to Figure 1 and Figure 2 Two mounting components 1 are arranged opposite each other along a first direction, forming the core load-bearing mounting base. Each component has a wire-holding groove 11 on its side wall perpendicular to the first direction. The wire-holding grooves 11 of the two mounting components 1 are oriented opposite to each other, facing the first direction and the opposite direction, respectively, forming a properly aligned wiring mounting structure. It can be noted that the first direction is typically the length direction of the mounting component 1, and also the direction in which the two mounting components 1 are relatively distributed.

[0069] Please refer to Figure 2 The cable tray 11 has a concave groove structure, and the size of the groove is precisely matched with the shape of the wire harness terminal 21, which can realize the fitting and pressing of the wire harness terminal 21 without the need for additional adhesive or locking accessories, greatly simplifying the assembly structure.

[0070] Please refer to Figure 3For example, the wire harness 2 serves as a carrier for signal and power transmission. The main body adopts a vehicle-specific bend-resistant and aging-resistant insulated wire harness 2, which is suitable for complex automotive working conditions. Both ends of the wire harness 2 are press-fitted with metal wire harness terminals 21. The terminals have high hardness, excellent conductivity, and strong oxidation resistance, which can ensure long-term stable electrical conduction.

[0071] Please refer to Figure 2 and Figure 3 Two wire harness terminals 21 are respectively pressed into the wire clamping grooves 11 of the two mounting parts 1, realizing the fixed assembly of the wire harness 2 and the mounting parts 1. At the same time, the overall length of the wire harness 2 is greater than the straight-line distance between the two wire clamping grooves 11 (the wire harness 2 in the figure are all straight lines, which only indicate their positional relationship and do not represent their length relationship), so that the wire harness 2 naturally forms a moderately relaxed state after assembly, rather than a taut state. This fundamentally avoids the problem of the wire harness 2 being pulled and broken under vibration conditions, and ensures the continuity and stability of the electrical connection.

[0072] Please refer to Figure 4 For example, the claw 3 is a one-piece rigid plastic protrusion structure, injection molded integrally with one of the mounting parts 1. It has strong overall structural integrity and is not easily broken or detached. The claw 3 extends outward along the first direction, protruding from the outer end face of the corresponding mounting part 1. A locking groove 31 is provided on the other mounting part 1 at the position corresponding to the claw 3. The locking groove 31 is a concave groove structure, slightly larger than the outer shape of the claw 3, allowing the claw 3 to extend into it for locking engagement, thereby completing the rapid alignment and assembly of the two mounting parts 1.

[0073] Please refer to Figure 4 The slot 31 has a reserved spare part inside. This spare space allows the two mounting parts 1 to move slightly closer to each other along the first direction, providing displacement margin for structural vibration buffering and avoiding structural damage or loosening of connection caused by rigid contact collision.

[0074] Please refer to Figure 5 For example, the positioning shaft 4 adopts a high-strength metal round shaft structure, which is wear-resistant, deformation-resistant, and rigid. It extends horizontally along the first direction and serves as a guide and positioning reference for the alignment and assembly of the two mounting parts 1. Positioning holes 41 are respectively opened on the two mounting parts 1 at the axial positions corresponding to the positioning shaft 4. The positioning holes 41 are through holes or countersunk holes, which are adapted to the shape of the positioning shaft 4.

[0075] Please refer to Figure 5The two ends of the positioning shaft 4 extend into the positioning holes 41 of the two mounting parts 1, respectively, to achieve precise alignment and positioning of the two mounting parts 1. Simultaneously, a positioning allowance is reserved between the end of the positioning shaft 4 and the bottom wall of the positioning hole 41. This positioning allowance, in conjunction with the allowance of the snap-fit ​​groove 31, provides buffer space for the relative proximity displacement of the two mounting parts 1, effectively offsetting the structural compression and offset stress caused by vibration, and improving the overall structural tolerance and seismic resistance. The positioning hole 41 can be a countersunk hole, and its shape can be the same as the shape of the end of the positioning shaft 4.

[0076] Please refer to Figure 5 For example, the compression spring 5 adopts a stainless steel elastic spring structure, which is fatigue-resistant, not easy to rust, and has strong elastic stability. It is sleeved on the outside of the positioning shaft 4 and coaxially arranged with the positioning shaft 4. The two ends of the compression spring 5 elastically abut against the opposite wall surfaces of the two mounting parts 1 respectively, and are always in a slightly compressed state, continuously providing a reverse elastic clamping force to the two mounting parts 1, so that the two mounting parts 1 always maintain a stable assembly state.

[0077] Please refer to Figure 5 Under vehicle vibration and braking impact conditions, the compression spring 5 can absorb high-frequency vibration energy through its own elastic deformation, buffer the structural impact force, avoid malfunctions such as loose mounting parts 1, terminal detachment, and poor contact, greatly improve the overall structure's seismic performance, ensure stable and reliable signal transmission between the sensor and the controller, and enhance the working safety of the brake-by-wire system.

[0078] Please return to the reference. Figure 2 In some examples, the wire harness 2 is configured as a structure with multiple wires arranged in parallel. Each mounting component 1 has multiple wire slots 11, and the multiple wire harnesses 2 are matched one-to-one with the multiple wire slots 11 to ensure that each wire harness 2 is installed and fixed independently without interfering with each other.

[0079] Please refer to Figure 2 Multiple wire slots 11 can be evenly spaced along the first direction on the side wall of the mounting component 1. The regular spacing layout can make each wire harness terminal 21 bear force evenly, avoiding stress concentration and line interference caused by the centralized arrangement of multiple lines. It can adapt to the working requirements of synchronous transmission of multiple signals between sensors and controllers, while maintaining the regularity and simplicity of the overall structure.

[0080] Please refer to Figure 2 and Figure 6In some examples, multiple cable slots 11 on a single mounting component 1 can be arranged on two opposite side walls of the mounting component 1, adopting a double-sided layered wiring structure. This fully utilizes the three-dimensional space of the mounting component 1, significantly improving space utilization compared to a single-sided centralized wiring method, and is suitable for the small and compact assembly environment inside automotive braking systems. At the same time, the double-sided wiring structure can balance the load-bearing force on both sides of the mounting component 1, avoiding structural displacement and loosening caused by concentrated loads on one side, and further enhancing the seismic stability of the structure.

[0081] Please refer to Figure 7 In some examples, to improve the uniformity and stability of the positioning buffer, the positioning shaft 4 and the compression spring 5 are both set to at least two sets, and the two sets of structures are matched and assembled one-to-one. Each mounting part 1 has an independent positioning hole 41 corresponding to each positioning shaft 4.

[0082] Please refer to Figure 7 Multiple positioning shafts 4 and compression springs 5 ​​are evenly spaced along the distribution direction of the wire harness 2 to form a multi-point positioning and multi-point elastic buffer structure, which replaces the traditional single-point buffer positioning method. It can constrain the assembly posture of the mounting part 1 in all directions, avoid the tilting and displacement of the mounting part 1 caused by uneven force at a single point, and greatly improve the overall structure's resistance to vibration and deformation, making it suitable for high-intensity vibration conditions.

[0083] Please refer to Figure 8 In some examples, structural performance is optimized through precise dimensional matching. After the two mounting parts 1 are assembled by the clips 3 and the slots 31, the total length along the first direction is g, and the total length of the wire harness 2 is a. By limiting the dimensional relationship to satisfy g+5≤a≤g+10, the slack of the wire harness 2 is kept within the optimal range. This matching can ensure that the wire harness 2 will not be stretched and broken during vibration displacement, ensuring electrical connection safety, and can also avoid the problems of redundant accumulation, bending wear, and excessive space occupation caused by excessive slack of the wire harness 2. There is no need to add additional wire harness 2 limiting and storage structures, which maximizes the balance between seismic performance and spatial adaptability while simplifying the structure.

[0084] Please refer to Figure 8 In some examples, for structural layouts with only one side having a claw 3, the length of the mounting part 1 with only claw 3 along the first direction (as shown by the arrow in the figure) is defined as e, and the length of the mounting part 1 with only the snap-fit ​​groove 31 along the first direction is defined as f. By limiting the dimensions e+f=g+5, the dimensional standardization matching of the asymmetrical assembly structure is achieved, the optimal slack allowance of the wire harness 2 is accurately matched, the problem of uneven force and displacement deviation in the asymmetrical structure with one side snap-fit ​​is solved, the stability and reliability of the structural connection under the asymmetrical layout are guaranteed, and the structural design and processing debugging process is simplified.

[0085] Please refer to Figure 7In some examples, to improve the snap-fit ​​fastening effect, the claws 3 can be configured as multiple spaced-out structures, and correspondingly, multiple snap-fit ​​slots 31 are also configured, with multiple claws 3 and multiple snap-fit ​​slots 31 engaging one-to-one. The multi-point snap-fit ​​structure can evenly distribute vibration and impact loads, avoid stress concentration and loosening / disengagement problems caused by single-point snap-fit, improve the overall rigidity and tightness of the connection between the two mounting parts 1, and further enhance the structure's vibration and impact resistance.

[0086] Please refer to Figure 9 In some examples, multiple claws 3 can be symmetrically distributed on two mounting parts 1. Claws 3 and locking grooves 31 are respectively set at corresponding positions of the two mounting parts 1 to form a double-sided symmetrical multi-point locking structure, so that the locking force of the two mounting parts 1 is completely balanced, completely avoiding the structural displacement and uneven force defects caused by single-sided locking, improving the overall stability of the structure and the assembly alignment accuracy, reducing the assembly difficulty, and adapting to the needs of mass production.

[0087] Please refer to Figure 10 In some examples, the wire slot 11 is specifically divided into two functional areas: the insertion part 111 and the crimping part 112. The insertion part 111 passes through the mounting part 1 in the first direction and is an open through slot structure, which can realize the quick insertion and alignment of the wire harness terminal 21, complete the pre-positioning and pre-fixing, and greatly reduce the assembly difficulty.

[0088] Please refer to Figure 10 The crimping part 112 and the insertion part 111 are interconnected and form a closed crimping groove structure, which can radially crimp and limit the insertion of the wire harness terminal 21, restricting the axial movement and radial displacement of the terminal, and achieving double fixing of the terminal.

[0089] This composite channel structure requires no additional auxiliary fixing accessories, has a high degree of structural integration, is easy to assemble, can effectively improve the firmness of terminal connections, enhance the anti-vibration and anti-loosening effect, and ensure stable transmission of high-precision signals.

[0090] Please refer to Figure 11 In some examples, the electrical connection structure also includes retaining housing 6 and fixing pin 7 to achieve integrated fixation and external protection of the overall structure.

[0091] Please refer to Figure 11 The housing 6 is made of insulating hard plastic material and is set through both ends along the first direction. The internal cavity size is adapted to the overall shape after the two mounting parts 1 are snapped together. After the two mounting parts 1 are snapped together and assembled, the whole is slidably assembled inside the housing 6. It can make a slight sliding buffer along the inside of the housing. At the same time, the housing forms an all-round protective enclosure for the internal structure to resist external vibration, dust and collision interference.

[0092] Please refer to Figure 12The mounting component 1 has an independent strip groove, which is located on the wall of the mounting component 1 parallel to the first direction. It is independent of the wire clamping groove 11 and does not interfere with each other. The strip groove extends in a direction perpendicular to the first direction.

[0093] One of the mounting parts 1 has a slot that runs through the outer wall of the retaining housing 6. The fixing pin 7 adopts a rigid insulating column structure and is inserted into the slot to achieve relative fixation between the corresponding mounting part 1 and the retaining housing 6, thus completing the integrated locking of the overall structure. This eliminates the need for a multi-point fixing structure, greatly simplifies the overall assembly structure, and improves the overall integrity and operational reliability of the structure.

[0094] Please refer to Figure 12 At this point, in order to keep the housing 6 and the two mounting parts 1 relatively fixed, a limiting block 61 integrally formed with the housing 6 can be provided at the tail position of the other mounting part 1. The limiting block 61 prevents the mounting part 1 from sliding out of the housing 6. The limiting block 61 and the mounting part 1 can abut against each other, so that the two mounting parts 1 can retract normally due to vibration.

[0095] The above structure is designed for the connection scenario of position sensor and controller of automotive brake-by-wire motor. By optimizing the structural layout, elastic buffer matching, and precise size ratio, it achieves three core advantages: structural simplification, enhanced shock resistance, and significantly improved safety.

[0096] Please refer to Figure 12 In some examples, the claw 3 and the retaining housing 6 can be designed simultaneously within the same electrical connection structure, or one of them can be set within the electrical connection structure to achieve the desired fixing effect.

[0097] The assembly method adopts the direct pressing of terminals with mounting parts 1 and slots 11, and quick snap-fit ​​with claws 3. It abandons the complex structure of traditional welding and bolt fastening, greatly reduces the number of parts and assembly processes, has high structural integration and convenient assembly, and is suitable for the miniaturization and lightweight design requirements of vehicle.

[0098] By optimizing the margin of wire harness 2, buffering the displacement of clamping margin and positioning margin, and using a multi-point elastic buffer structure, the high-frequency vibration and braking impact energy of the vehicle can be effectively absorbed, eliminating faults such as loose terminals, wire harness 2 pulling and breaking, and poor signal contact, thus greatly improving the seismic performance of the structure.

[0099] Meanwhile, the combination of multiple limiting, buffering, and protective structures can effectively avoid signal transmission interruption and distortion in the brake-by-wire system, eliminate braking safety failures caused by electrical connection failures, and comprehensively improve the product's working safety and adaptability to operating conditions.

[0100] In some embodiments, please refer to Figure 1-3An electrical connection structure is used in the signal and circuit connection between the brake motor position sensor and the main controller in the brake-by-wire braking system of a passenger vehicle. The whole structure consists of two insulated engineering plastic mounting parts 1, six vehicle-mounted bend-resistant wire harnesses 2, multiple sets of integrated plastic claws 3, three sets of metal positioning shafts 4, three sets of stainless steel compression springs 5, a retaining housing 6, and a fixing pin 7.

[0101] Both mounting components 1 are made of glass fiber reinforced PA66 engineering plastic. The overall structure is rectangular block structure, with good insulation, impact resistance, and resistance to high and low temperatures. It can adapt to the working environment of vehicle-mounted temperature from -40℃ to 125℃ for a long time.

[0102] Two mounting components 1 are distributed relative to each other along the front-back direction as the first direction. Three wire-locking slots 11 are provided on the right side wall of the left mounting component 1 and the left side wall of the right mounting component 1. The left wire-locking slot 11 faces to the right and the right wire-locking slot 11 faces to the left. They are arranged in a bidirectional relative manner. The three wire-locking slots 11 are evenly spaced along the front-back direction. Three more corresponding wire-locking slots 11 are provided on the back side wall of the left mounting component 1 and the back side wall of the right mounting component 1 to achieve double-sided layered wiring.

[0103] Six independent wire harnesses 2, each with tin-plated copper wire harness terminals 21 pressed at both ends, offering excellent conductivity and resistance to oxidation and corrosion. The six wire harnesses 2 are pressed and fixed one-to-one with six sets of wire clamping slots 11. After assembly, the overall length of the wire harness 2 is 8mm longer than the center-to-center distance between the two wire clamping slots 11, satisfying the dimensional ratio requirement of g+5≤a≤g+10. This ensures the wire harness 2 remains in a moderately slack state, eliminating both tensile stress and redundant accumulation.

[0104] Two sets of spaced-apart claws 3 are integrally formed on the right mounting part 1. The claws 3 extend to the left along the first direction. Two sets of snap-fit ​​grooves 31 are opened at the corresponding positions on the left mounting part 1. The snap-fit ​​grooves 31 have a 3mm spare space reserved inside, which can allow the two mounting parts 1 to move slightly towards each other.

[0105] Two sets of metal positioning shafts 4 and two sets of compression springs 5 ​​are configured. The positioning shafts 4 are arranged horizontally through the first direction. The two mounting parts 1 are respectively opened with matching positioning holes 41. The end of the positioning shaft 4 and the bottom wall of the positioning hole 41 are reserved with a 2mm positioning allowance, which is matched with the snap-fit ​​groove 31 to form a double displacement buffer structure.

[0106] It can be explained that the length of the extra space in the snap-fit ​​groove 31 is greater than the depth of the positioning extra space, which facilitates the assembly of the two mounting parts 1.

[0107] Compression spring 5 is sleeved on the outside of positioning shaft 4, with its two ends abutting against the opposite end faces of two mounting parts 1 respectively. After assembly, it remains in a slightly compressed state and continuously provides elastic clamping force, which can effectively absorb high-frequency vibrations generated by vehicle driving bumps and braking impacts.

[0108] In the single-sided claw 3 layout, the sum of the length of the mounting part 1 on the claw 3 side and the length of the mounting part 1 on the slot 31 side satisfies e+f=g+5, achieving optimal size matching.

[0109] Each wire slot 11 is divided into a through-type plug-in part 111 and a connecting crimping part 112. During assembly, the wire harness terminal 21 is first inserted through the plug-in part 111 to complete the pre-positioning, and then the crimping part 112 is used to press and limit the position, so that the terminal is fixed without loosening and the terminal is prevented from moving and falling off under vibration conditions.

[0110] After the two mounting parts 1 are snapped together and assembled, the whole assembly slides into the interior of the retaining housing 6, which is open at both ends, along the first direction. The retaining housing 6 is made of flame-retardant and insulating plastic material, which protects the internal connection structure.

[0111] An independent strip groove is provided on the side wall of the right mounting component 1. The strip groove extends perpendicularly to the first direction and penetrates the outer wall of the retaining housing 6. The rigid insulating fixing pin 7 is inserted laterally into the strip groove to lock and fix the mounting component 1 and the retaining housing 6, thus completing the integrated assembly of the overall structure.

[0112] In practical applications, pre-assembly and alignment are achieved through the quick snap-fit ​​between the claw 3 and the snap-fit ​​slot 31. The positioning shaft 4 and the compression spring 5 provide full-process elastic buffering and shock absorption. By optimizing the allowance of the wire harness 2 and the structural dimensions, the problems of vibration loosening, wire harness 2 breakage, and signal failure in traditional structures are completely solved.

[0113] The overall structure requires no bolts, glue, or other auxiliary fixing accessories, has fewer parts, simpler assembly processes, and a highly streamlined structure. Under high-intensity vibration and alternating high and low temperature conditions in vehicles, it can maintain continuous and stable signal transmission between sensors and controllers for extended periods, without faults such as poor contact, signal distortion, or circuit breaks, greatly improving the working safety and operational stability of the brake-by-wire system.

[0114] In some examples, please refer to Figure 1 An electrical connection structure includes a mounting component 1, a wiring harness 2, a claw 3, a positioning shaft 4, and a compression spring 5.

[0115] Please refer to Figure 2 There are two mounting parts 1, which are distributed opposite to each other along the first direction. A wire-locking groove 11 is provided on one side wall of the mounting part 1 perpendicular to the first direction. The wire-locking grooves 11 on the two mounting parts 1 are respectively arranged opposite to each other along the first direction and the opposite direction of the first direction.

[0116] Please refer to Figure 3 Both ends of the wire harness 2 are provided with wire harness terminals 21. The two wire harness terminals 21 are respectively pressed into the two wire clamping slots 11 on the two mounting parts 1. The length of the wire harness 2 is greater than the distance between the two wire clamping slots 11.

[0117] Please refer to Figure 4 The claw 3 is fixedly mounted on a mounting component 1. The claw 3 extends out of the mounting component 1 along the first direction. The other mounting component 1 is provided with a snap-fit ​​groove 31 corresponding to the claw 3. The claw 3 extends into the snap-fit ​​groove 31 to snap the two mounting components 1 together. The snap-fit ​​groove 31 is provided with an excess portion, which allows the two mounting components 1 to move closer to each other along the first direction.

[0118] Please refer to Figure 5 The positioning shaft 4 extends along the first direction. Along the axis of the positioning shaft 4, the two mounting parts 1 are respectively designed with positioning holes 41. The two ends of the positioning shaft 4 extend into the two positioning holes 41 of the two mounting parts 1 respectively. A positioning allowance is provided between the positioning shaft 4 and the bottom wall of the positioning hole 41. The positioning allowance enables the two mounting parts 1 to move closer to each other along the first direction.

[0119] Please refer to Figure 5 The compression spring 5 is mounted on the positioning shaft 4. The two ends of the compression spring 5 abut against the two walls of the two mounting parts 1, and the compression spring 5 is compressed between the two mounting parts 1.

[0120] For example, the mounting component 1 is a structural load-bearing base, and the two mounting components 1 are distributed in a face-to-face manner along a preset first direction. The first direction is the assembly alignment and displacement buffer reference direction of the overall structure, which is adapted to the requirements of vehicle-mounted horizontal assembly layout.

[0121] Mounting component 1 is made of high-strength flame-retardant and insulating engineering plastic material, which has the characteristics of being resistant to high and low temperatures in vehicles, anti-aging, anti-mechanical vibration, and insulation and leakage prevention. It avoids the defects of metal materials such as conductivity, corrosion and heavy weight, and is suitable for precision electrical connection scenarios.

[0122] Please refer to Figure 2 and Figure 5 In terms of position and structure, the single sidewall of the mounting component 1, perpendicular to the first direction, serves as the wiring fixing reference surface. An integrally formed wire-clamping groove 11 is provided on this sidewall. The wire-clamping groove 11 is a concave groove whose contour matches the shape of the wire harness terminal 21, enabling the wire harness terminal 21 to be fitted and pressed into place. The wire-clamping grooves 11 of the two mounting components 1 are arranged facing each other, respectively towards the first direction and the opposite direction, forming a bidirectional aligned wiring installation structure, providing a precise installation position for the fixed assembly of the wire harnesses 2 at both ends.

[0123] Please refer to Figure 2 and Figure 5 The wire harness 2 is the main body for signal and power transmission. Both ends are equipped with wire harness terminals 21 that are press-fitted and fixed. The main body of the wire harness 2 uses automotive-grade special insulated wire that is resistant to bending, wear, and aging. The wire harness terminals 21 are made of highly conductive, oxidation-resistant, and high-hardness tin-plated copper metal to ensure long-term conductivity stability and assembly structure strength.

[0124] Two wire harness terminals 21 are respectively press-fitted into the wire clamping grooves 11 of the two mounting parts 1 to achieve a fixed connection between the wire harness 2 and the two sets of mounting parts 1. At the same time, the overall length of the wire harness 2 is greater than the straight-line distance between the two wire clamping grooves 11, so that the wire harness 2 naturally forms a slack after assembly, thereby avoiding the risk of the wire harness 2 being broken under tension under vibration conditions from a structural perspective.

[0125] Please refer to Figure 6-7 The claw 3 is a positioning component for mounting part 1. The claw 3 can be fixedly set on one of the mounting parts 1. The connection method can be integral injection molding with the mounting part 1. The structure has strong integrity and no risk of falling off or loosening. The claw 3 extends outward along the first direction and extends outward from the outer end face of the mounting part 1.

[0126] The matching structure is a snap-fit ​​groove 31, which is located at the corresponding position of another mounting component 1. It is a concave groove structure, and the end of the claw 3 can extend into the snap-fit ​​groove 31 to realize the detachable snap-fit ​​assembly of the two mounting components 1.

[0127] Please refer to Figure 6-7 The extra portion reserved in the snap-fit ​​groove 31 is a redundant displacement gap inside the snap-fit ​​groove 31, which allows the two mounting parts 1 to make a slight displacement movement towards each other along the first direction, providing rigid avoidance space for structural vibration buffering and avoiding rigid compression deformation of the structure under vibration impact.

[0128] Multiple claws 3 can be configured, and these claws 3 can be respectively set on two mounting parts 1. At the same time, the claws 3 on the two mounting parts 1 should not be located on the same straight line to avoid installation conflicts. The number of claws 3 on each mounting part 1 can be 2, the total number can be 4, or other numbers.

[0129] The positioning shaft 4 is an integral guide and limiting reference structure that extends along the entire length of the first direction. It can be made of high-strength, wear-resistant metal round shaft material, which is resistant to deformation, wear-resistant, and has high positioning accuracy. Positioning holes 41 are opened on both mounting parts 1 corresponding to the axis of the positioning shaft 4. The positioning holes 41 are fitted with the outer clearance of the positioning shaft 4. The two ends of the positioning shaft 4 extend into the positioning holes 41 of the two mounting parts 1 respectively, so as to achieve precise coaxial alignment of the two mounting parts 1.

[0130] Please return to the reference. Figure 5 The positioning allowance reserved between the end of the positioning shaft 4 and the bottom wall of the positioning hole 41 is a gap structure. This gap and the allowance of the snap-fit ​​groove 31 cooperate with each other to form a bidirectional displacement buffer allowance, which can accommodate the slight opposite displacement of the two mounting parts 1 along the first direction, further improving the seismic buffer performance of the structure.

[0131] Please refer to Figure 5The compression spring 5 is an elastic buffer clamping component. It is sleeved on the outside of the positioning shaft 4 and is coaxially arranged with the positioning shaft 4. The compression spring 5 is made of stainless steel elastic material, which is fatigue-resistant, not easy to rust, and has stable elastic performance, making it suitable for long-term vibration conditions in vehicles.

[0132] The two end faces of the compression spring 5 elastically abut against the opposite wall surfaces of the two mounting parts 1 respectively, and always remain in a pre-compressed state after assembly, continuously applying a reverse elastic pressing force to the two mounting parts 1, so that the two mounting parts 1, the claw 3 and the locking groove 31, and the positioning shaft 4 and the positioning hole 41 always remain in a close and tight state, relying on elastic deformation to absorb vibration energy and prevent loose connection and poor contact problems.

[0133] Please refer to Figure 7 In some examples, multiple wire harnesses 2 are provided, and multiple wire slots 11 are provided on each mounting component 1. The multiple wire slots 11 are provided in a one-to-one correspondence with the multiple wire harnesses 2. The multiple wire slots 11 are spaced apart on the side wall of the mounting component 1 along the first direction.

[0134] Please refer to Figure 7 Multiple wire harnesses 2 and multiple wire slots 11 are matched independently in a one-to-one manner. The wire harness terminals 21 at both ends of each wire harness 2 are independently press-fitted into a set of wire slots 11. The assembly structure of each wire harness 2 is independent, without interference or stress superposition.

[0135] Multiple wire-locking slots 11 are evenly spaced along the first direction on the side wall mounting surface of the mounting component 1. The regular spacing layout ensures that the stress state of each group of wire-locking slots 11 and wire harness terminals 21 is uniform and consistent, avoiding local stress concentration. At the same time, the standardized arrangement structure can reduce the space occupied by the overall structure.

[0136] In some examples, multiple wire slots 11 are provided on two opposite sidewalls of a mounting 1.

[0137] The cable trays 11 are symmetrically or spaced on both sides of the same mounting component 1, which can arrange multiple cable bundles 2 in layers and on different sides, making full use of the three-dimensional space of the mounting component 1. Compared with the conventional layout of centralized wiring on one side, the space utilization rate is greatly improved.

[0138] Meanwhile, the distributed layout on both sides can balance the assembly load and vibration force on both sides of the mounting component 1, completely solve the problem of uneven structural stress and loosening on one side caused by single-sided wiring, and further improve the overall stability and seismic performance of the multi-wire harness 2 connection structure.

[0139] Please refer to Figure 9In some examples, at least two positioning shafts 4 and compression springs 5 ​​are provided, with at least two positioning shafts 4 and at least two compression springs 5 ​​being provided in a one-to-one correspondence. Each mounting piece 1 is provided with a positioning hole 41 corresponding to each positioning shaft 4, and at least two positioning shafts 4 are arranged at intervals along the distribution direction of the wire harness 2.

[0140] Multiple positioning shafts 4 and multiple compression springs 5 ​​are assembled in a one-to-one correspondence manner. Each positioning shaft 4 is individually fitted with a compression spring 5 on its outer side, forming an independent positioning buffer unit.

[0141] Correspondingly, the positioning holes 41 of the mounting component 1 are added synchronously, and each mounting component 1 has an independent positioning hole 41 for each positioning shaft 4 to ensure the independent alignment and assembly of multiple positioning structures.

[0142] Multiple sets of positioning and buffering units are evenly spaced along the distribution direction of wire harness 2, forming a multi-point symmetrical positioning and multi-point uniform elastic buffering structure system, avoiding tilting and offset problems caused by uneven force on a single point, and greatly improving the overall structure's resistance to vibration and deformation.

[0143] Please refer to Figure 8 In some examples, the total length of the two mounting parts 1 along the first direction after being snapped together by the claw 3 and the snap-fit ​​groove 31 is g, and the total length of the wire harness 2 is a. In this case, g+10≤a and g+5≥a.

[0144] Please refer to Figure 8 In this case, the quantitative relationship between the two can also be g+10<a,g+5>a, for example, g+9=a,g+8=a,g+7=a,g+6=a,g+6.5=a.

[0145] Please refer to Figure 8 In some examples, when the claw 3 is only set on one mounting piece 1, along the first direction, the length of the mounting piece 1 with only the claw 3 is e, and the length of the mounting piece 1 with only the snap-fit ​​groove 31 is f. At this time, g+5=e+f.

[0146] Please refer to Figure 8 For example, the number of claws 3 set on the mounting part 1 can be 2, 3, 4 or 6.

[0147] Please refer to Figure 9 In some examples, multiple claws 3 are configured, spaced apart, and multiple locking slots 31 are configured, with each locking slot 31 corresponding to one of the multiple claws 3. The total number of claws 3 can be 2 to 6.

[0148] Please refer to Figure 9In some examples, multiple claws 3 are respectively disposed on two mounting parts 1, with one locking slot 31 and one claw 3 corresponding to each other and disposed at corresponding positions on the two mounting parts 1. The number of claws 3 on the two mounting parts 1 can be equal or unequal.

[0149] Please refer to Figure 10 In some examples, the cable tray 11 includes a plug-in portion 111 and a crimp portion 112, with the wire harness terminal 21 partially plugged into the plug-in portion 111. The plug-in portion 111 passes through the mounting member 1 in a first direction, and the crimp portion 112 communicates with the plug-in portion 111.

[0150] For example, the crimping portion 112 can be formed by removing part of the housing of the insertion portion 111 to create a recess, thereby forming the crimping portion 112, or the two can be provided independently and connected. The crimping portion 112 should be interference-fitted with the wire harness terminal 21, and the opening of the crimping portion 112 should be a deformable shrinkable structure to facilitate the crimping of the wire harness terminal 21.

[0151] Please refer to Figure 11 , Figure 12 In some examples, the electrical connection structure also includes a retaining housing 6 and a fixing pin 7. The retaining housing 6 is provided through both ends along the first direction. After the two mounting parts 1 are snapped together, they are slidably disposed in the retaining housing 6 along the first direction. The mounting parts 1 are provided with a strip groove. The strip groove is provided on the wall surface of the mounting parts 1 parallel to the first direction. The strip groove and the wire clamping groove 11 are provided independently. The strip groove extends in a direction perpendicular to the first direction.

[0152] One of the two slots on the two mounting pieces 1 extends through the outer wall of the retaining housing 6, and the fixing pin 7 is inserted into the slot to fix the mounting piece 1 relative to the retaining housing 6.

[0153] Please refer to Figure 11 For example, the number of slots on each mounting component 1 can be 1, 2, 3 or 4. In this case, the slots on one mounting component 1 can be fully through the retaining housing 6, so that a fixing pin 7 is inserted into the slot on each retaining housing 6, thereby making the connection between the retaining housing 6 and the mounting component 1 more stable.

[0154] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0155] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electrical connection structure, characterized in that, include: The mounting components are configured as two, and the two mounting components are distributed opposite to each other along a first direction. A wire-locking groove is provided on one side wall of the mounting component perpendicular to the first direction. The wire-locking grooves on the two mounting components are respectively arranged opposite to each other along the first direction and the opposite direction of the first direction. The wire harness has wire harness terminals at both ends. The two wire harness terminals are respectively pressed into the two wire clamping slots on the two mounting parts. The length of the wire harness is greater than the distance between the two wire clamping slots. A claw is fixedly disposed on one of the mounting components. The claw extends out of the mounting component along the first direction. A corresponding snap-fit ​​groove is provided on the other mounting component. The claw extends into the snap-fit ​​groove to snap the two mounting components together. The snap-fit ​​groove has an excess portion, which allows the two mounting components to move closer to each other along the first direction. A positioning shaft extends along the first direction. Positioning holes are designed on the two mounting members along the axis of the positioning shaft. The two ends of the positioning shaft extend into the two positioning holes of the two mounting members respectively. A positioning allowance is provided between the positioning shaft and the bottom wall of the positioning hole. The positioning allowance enables the two mounting members to move closer to each other along the first direction. A compression spring is disposed on the positioning shaft, with its two ends abutting against the two walls of the two mounting members, and the compression spring is compressed between the two mounting members.

2. The electrical connection structure according to claim 1, characterized in that, The wiring harness is configured as multiple wires, and each mounting component has multiple wire-locking slots. The multiple wire-locking slots and the multiple wires are configured in a one-to-one correspondence. The multiple wire-locking slots are spaced apart on the side wall of the mounting component along a first direction.

3. The electrical connection structure according to claim 2, characterized in that, A plurality of the wire slots on one of the mounting components are provided on two opposite sidewalls of the mounting component.

4. The electrical connection structure according to claim 2, characterized in that, The positioning shaft and the compression spring are both provided in at least two, and the at least two positioning shafts and the at least two compression springs are provided in a one-to-one correspondence. Each mounting component is provided with a positioning hole corresponding to each positioning shaft, and the at least two positioning shafts are arranged at intervals along the distribution direction of the wire harness.

5. The electrical connection structure according to any one of claims 1 to 4, characterized in that, After the two mounting components are engaged by the claws and the slots, the total length along the first direction is g, and the total length of the wire harness is a. At this time, g+10≤a, g+5≥a.

6. The electrical connection structure according to claim 5, characterized in that, When the chuck is only mounted on one of the mounting components, along the first direction, If the length of the mounting component with only the claw is e, and the length of the mounting component with only the snap-fit ​​groove is f, then g+5=e+f.

7. The electrical connection structure according to any one of claims 1 to 4, characterized in that, The clamping claws are configured in multiple ways, and the multiple clamping claws are distributed at intervals. The multiple clamping slots are configured in multiple ways, and the multiple clamping slots are configured in one-to-one correspondence with the multiple clamping claws.

8. The electrical connection structure according to claim 7, characterized in that, Multiple claws are respectively disposed on two mounting members, and a locking groove and a claw correspond to each other and are respectively disposed at corresponding positions on the two mounting members.

9. The electrical connection structure according to claim 1, characterized in that, The cable slot includes a plug-in portion and a crimping portion. The wire harness terminal portion is plugged into the plug-in portion. The plug-in portion passes through the mounting member along the first direction. The crimping portion and the plug-in portion are connected.

10. The electrical connection structure according to claim 9, characterized in that, The electrical connection structure further includes a retaining housing and a fixing pin. The retaining housing is provided through both ends along the first direction. After the two mounting parts are snapped together, they are slidably disposed in the retaining housing along the first direction. The mounting component has a strip-shaped groove on its wall surface, which is parallel to the first direction. The strip-shaped groove and the wire-clamping groove are independently arranged, and the strip-shaped groove extends in a direction perpendicular to the first direction. One of the two grooves on the two mounting pieces extends through the outer wall of the retaining housing, and the fixing pin is inserted into the groove to fix the mounting piece relative to the retaining housing.

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