Junction box and electric bicycle

Abstract

The utility model provides a junction box and electric bicycle relates to the technical field of electric vehicle accessories, this junction box includes box body and box body mounting structure, the inner chamber for accommodating wire harness adapter is had to box body, the lateral wall of box body is equipped with with the inner chamber intercommunication junction mouth no.

Description

Technical Field

[0001] This utility model relates to the technical field of electric vehicle accessories, and in particular to a junction box and an electric bicycle. Background Technology

[0002] Two-wheeled electric vehicles are widely used in short-distance urban travel as a convenient and environmentally friendly mode of transportation. They are generally equipped with a rich array of electronic systems, including lighting systems (headlights, turn signals, brake lights), information display systems (speedometer, battery level indicator), and control systems (horn, multi-function buttons). These electronic devices are typically fixedly installed, mainly located in the handlebar area, and are connected to the vehicle's main electrical circuit via wiring harnesses for power supply and control signal transmission.

[0003] In actual use of the vehicle, the handlebars, as the core component of steering control, need to be frequently turned left and right to adjust the riding direction. When the user performs a steering operation, the rotation of the handlebars will drive the fixed electronic equipment to rotate synchronously, and the wiring harness will be stretched and twisted.

[0004] In existing technologies, the electronic equipment on the handlebars is fixed in its mounting position, and its wiring harness is usually routed directly. When the user makes a turn, the wiring harness is mixed with the brake cable and oil line, and the wires cross each other directly. When the wiring harness is stretched and twisted, it not only produces abnormal noise, but also easily gets tangled. With long-term use, the wiring harness may suffer from insulation wear, internal conductor breakage, or loose joints, which may lead to problems such as sudden failure of the lighting system, abnormal turn signals, or interruption of display data, affecting the riding experience. Furthermore, the failure of key electronic equipment may cause traffic safety hazards. Utility Model Content

[0005] The purpose of this invention is to provide a junction box and an electric bicycle to reduce the frequency of sudden electrical system failures during riding and improve riding safety.

[0006] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions: In a first aspect, embodiments of the present invention provide a junction box, comprising: The housing has an inner cavity for accommodating the wire harness adapter, and the side wall of the housing is provided with a wiring port one and a wiring port two communicating with the inner cavity; The box mounting structure is fixed or integrally connected to the box body and is used to fix the box body to the vehicle body; The direction of motion of the vehicle body when it moves forward is defined as the reference coordinate system: The first and second connection ports are both located on the left or right side wall of the box. The first connection port is located above the second connection port, and the guide wires change from a vertical direction to a horizontal direction from the outside of the box to the inside of the box. The second connection port guides the wires from a horizontal direction to a vertical direction from the inside of the box to the outside of the box.

[0007] In an optional embodiment, the junction box further includes a limiting channel component fixed to the vehicle body and / or the box body, the limiting channel component comprising: The limiting channel component is curved, and its curved path guides the wire harness from the outside of the box body downward through the wiring port to the inside of the box body, changing from a vertical direction to a horizontal direction. The second limiting channel component is curved, and its curved path guides the wire harness from the inside of the box downward through the second wiring port to the outside of the box, changing from a horizontal direction to a vertical direction.

[0008] In an optional embodiment, each of the limiting channel component one and the limiting channel component two has a limiting mounting hole on one side wall of the box body for cooperating with the fixing component to fix it to the vehicle body.

[0009] In an optional embodiment, the inner sidewalls of the radial cross-sections of both the first limiting channel member and the second limiting channel member are arc-shaped; the limiting channel member further includes an anti-detachment structure for preventing the wire harness from detaching from the respective channels of the first and second limiting channel members.

[0010] In an optional embodiment, the anti-detachment structure includes a limiting groove disposed on the inner sidewall of each of the limiting channel member one and the limiting channel member two. And / or, the anti-detachment structure includes a wire harness binding member that cooperates with the first limiting channel member and the second limiting channel member.

[0011] In an optional embodiment, the housing mounting structure includes a mounting base and a positioning base; The mounting base and the positioning base are respectively located on opposite sides of the box body; the mounting base is provided with mounting holes for cooperating with fasteners to fix it to the vehicle body; The positioning seat protrudes outward from the box body and is used to insert into a slot provided on the vehicle body to position one side of the box body.

[0012] In an optional embodiment, the box mounting structure further includes a locking structure, which is integrally or fixedly connected to the vehicle body, and the slot is provided in the locking structure; The positioning seat is provided with a lock hole; The latch structure also includes a linkage component disposed in the slot, the linkage component including an elastic energy storage structure, a locking tongue and an unlocking button; In the locked state, when the positioning seat is inserted into the slot, it overcomes the elastic force of the elastic energy storage structure to squeeze the bolt until the bolt is inserted into the lock hole under the elastic reset action of the elastic energy storage structure; in the unlocked state, the unlock button is pressed to drive the bolt to overcome the elastic force of the elastic energy storage structure and disengage from the lock hole.

[0013] In an optional embodiment, the box mounting structure includes two mounting seats; the two mounting seats are respectively disposed on opposite sides of the box, and each of the two mounting seats is provided with a mounting hole for cooperating with a fastener to fix it to the vehicle body; And / or, the box body is cuboid or cube-shaped, and the wire harness adapter is located at the center of the inner cavity of the box body.

[0014] In an optional embodiment, the box body is open on one side surface facing the vehicle body and is fastened to the corresponding side surface of the vehicle body, and the first wiring port and the second wiring port are provided with side openings on the side facing the vehicle body; The side opening is provided with a blocking part that protrudes horizontally toward the outside of the box body; At the side opening of the first wiring port, the upper end of the blocking part is connected to the inner wall of the first wiring port, and the lower end is vertically spaced from the inner wall of the first wiring port; at the side opening of the second wiring port, the lower end of the blocking part is connected to the inner wall of the second wiring port, and the upper end is vertically spaced from the inner wall of the second wiring port.

[0015] Secondly, the present invention provides an electric bicycle, including the junction box described in any of the optional embodiments of the first aspect.

[0016] In particular, in the embodiments of this utility model, "and / or" means that the first feature before "and / or" and the second feature after "and / or" include the following specific settings: (1) only the first feature is set, and the second feature is not set; (2) only the second feature is set, and the first feature is not set; (3) the first feature and the second feature are set at the same time.

[0017] This embodiment can achieve at least the following beneficial effects: The junction box provided in this embodiment is applied to electric bicycles and can change the routing direction of the wiring harness connected to electronic devices, thereby achieving a reasonable layout of the wiring harness path and effective management of dynamic stress.

[0018] Specifically: The junction box is fixed to the electric bicycle frame via the box mounting structure, forming a locally concentrated electrical connection node. The wire harness adapter can be fixed to the inner wall of the box or to the surface of the vehicle frame facing the box. The fixing method includes, but is not limited to, snap-fitting, adhesive bonding, or other fixing methods. Alternatively, the wire harness adapter can simply be placed in the inner cavity of the box, with the inner cavity wall of the box and the surface of the vehicle frame facing the box jointly forming a spatial limit for the wire harness adapter, achieving a fastening-free positioning installation.

[0019] The wiring harness of the electric bicycle is divided into two sections: the lower end of the upper section is introduced into the box from connector one and connected to the wiring harness adapter, and the upper end of the lower section is introduced into the box from connector two and connected to the wiring harness adapter. Thus, the electrical path is switched inside the box, changing the original vertical wiring harness path that runs continuously through the vehicle body. The upper section of the wiring harness changes from vertical to horizontal from the outside of the box to the inside. After passing through the wiring harness adapter, the lower section of the wiring harness changes from horizontal to vertical from the inside of the box to the outside and extends downward to the main body area of ​​the vehicle.

[0020] When the steering wheel is turned left or right, only the upper half of the harness swings synchronously with the steering wheel, while the lower half of the harness and its connected circuitry remain stationary. At the junction of the two sections of the harness, a harness adapter maintains a stable connection between them. As the core component at the boundary between the dynamic and static parts, the harness adapter undertakes the function of continuous transmission of electrical signals, while preventing the entire harness from participating in torsional motion throughout its entire length.

[0021] This effectively avoids the entanglement, compression, and friction between the entire wire harness and adjacent components such as oil lines and brake lines caused by repeated twisting of the entire wire harness in traditional wiring. This improves the long-term reliability of the electrical system and reduces the probability of sudden electrical faults such as short circuits and open circuits caused by wire harness damage during riding, thereby reducing the risk of vehicle loss of control and improving riding safety. At the same time, the modular design of the wire harness is realized through the junction box, which simplifies the assembly and maintenance process of the wire harness on electric bicycles and is conducive to achieving production automation and standardized maintenance. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A schematic plan view of the overall structure of an optional embodiment of the junction box provided in this utility model; Figure 2 for Figure 1 The diagram shows the installation structure of the junction box mounted on the vehicle body. Figure 3 for Figure 1 Schematic diagram of the junction box body structure shown. Figure 1 ; Figure 4 for Figure 1 Schematic diagram of the junction box body structure shown. Figure 2 ; Figure 5 for Figure 1 The diagram shows the assembly relationship between the junction box body, the wire harness adapter, and the wire harness. Figure 6 A schematic plan view of the overall structure of another optional embodiment of the junction box provided in this utility model; Figure 7 for Figure 6 The diagram shows the installation structure of the junction box mounted on the vehicle body. Figure 8 for Figure 7 The diagram shows the working principle of a locking structure in the junction box shown. Figure 1 ; Figure 9 for Figure 8 Schematic diagram of the working principle of the locking structure shown Figure 2 .

[0024] Icons: 110 - Wiring harness; 120 - Oil line; 130 - Brake cable; 200 - Vehicle body; 1-Box body; 11-Connection port one; 12-Connection port two; 101-Side opening; 21-Mounting base; 211-Mounting hole; 212-Bent flange; 22-Positioning base; 221-Lock hole; 23-Slot; 231-First end of slot; 232-Second end of slot; 31-Limiting channel component one; 32-Limiting channel component two; 301-Limiting mounting hole; 4-Blocking part; 51-Actuating spring; 52-Returning spring; 53-Rotating component; 531-Hook; 5311-Arc-shaped surface; 54-Pressing rod; 541-Pressing end; 6-Wire harness adapter. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the accompanying drawings indicate similar items. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in subsequent accompanying drawings.

[0028] In the description of this utility model, it should be noted that: Unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "horizontal" and "vertical" do not mean that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate totality or relative position in time and / or space, nor should they be construed as indicating or implying relative importance.

[0031] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the features of the following embodiments and their optional embodiments can be combined with each other.

[0032] Example 1 This embodiment provides a junction box, see reference. Figures 1 to 7 The junction box includes a box body 1 and a box body mounting structure. The box body 1 has an inner cavity for accommodating the wire harness adapter 6. The side wall of the box body 1 is provided with a wiring port 11 and a wiring port 12 communicating with the inner cavity. The box body mounting structure is fixed or integrally connected to the box body 1 and is used to fix the box body 1 to the vehicle body 200.

[0033] The direction of motion of the vehicle body 200 when it moves forward is defined as the reference coordinate system: Connection port 11 and connection port 22 are both located on the left or right side wall of the box 1. Connection port 11 is located above connection port 22 and is used to guide the wire harness 110 from the outside of the box 1 to the inside of the box 1 from the vertical direction to the horizontal direction; connection port 22 is used to guide the wire harness 110 from the inside of the box 1 to the outside of the box 1 from the horizontal direction to the vertical direction.

[0034] The junction box provided in this embodiment is applied to electric bicycles and can change the routing direction of the wiring harness 110 connected to electronic devices, thereby achieving a reasonable layout of the wiring harness 110 path and effective management of dynamic stress.

[0035] Specifically: The junction box is fixed to the body 200 of the electric bicycle through the box mounting structure, forming a locally concentrated electrical connection node. The wire harness adapter 6 can be fixed to the inner wall of the box 1 or to the surface of the body 200 facing the box 1. The fixing method includes, but is not limited to, snap-fitting, gluing, or other fixing connection. Alternatively, the wire harness adapter 6 can simply be placed in the inner cavity of the box 1, and the cavity wall of the inner cavity of the box 1 and the surface of the body 200 facing the box 1 together form a spatial limit for the wire harness adapter 6, realizing a fastening-free positioning installation.

[0036] The wiring harness 110 of the electric bicycle is divided into two sections: the lower end of the upper section of the wiring harness 110 is introduced into the box 1 from the connector 11 and connected to the wiring harness adapter 6, and the upper end of the lower section of the wiring harness 110 is introduced into the box 1 from the connector 12 and connected to the wiring harness adapter 6. Thus, the electrical path is switched inside the box 1, changing the path of the wiring harness 110, which originally ran vertically through the vehicle body. The upper section of the wiring harness 110 changes from a vertical direction to a horizontal direction from the outside of the box 1 to the inside of the box 1. After passing through the wiring harness adapter 6, the lower section of the wiring harness 110 changes from a horizontal direction to a vertical direction from the inside of the box 1 to the outside of the box 1 and extends downward to the main body area of ​​the vehicle.

[0037] When the steering wheel is turned left or right, only the upper half of the harness 110 swings synchronously with the steering wheel, while the lower half of the harness 110 and its connected circuitry remain stationary. At the junction of the two sections of the harness 110, the harness adapter 6 maintains a stable connection between them. As the core component at the junction of the dynamic and static parts, the harness adapter 6 undertakes the function of continuous transmission of electrical signals, while preventing the entire harness 110 from participating in torsional motion throughout the entire process.

[0038] This effectively avoids the entanglement, compression, and friction between the entire wire harness 110 and adjacent components such as the oil line 120 and brake line 130 caused by repeated twisting of the entire wire harness 110 with the direction of the handlebar in traditional wiring. This improves the long-term reliability of the electrical system and reduces the probability of sudden electrical failures such as short circuits and open circuits caused by damage to the wire harness 110 during riding, thereby reducing the risk of loss of vehicle control and improving riding safety. At the same time, the modular design of the wire harness 110 is realized through the junction box, which simplifies the assembly and maintenance process of the wire harness 110 on electric bicycles and is conducive to achieving production automation and standardized maintenance.

[0039] In an optional embodiment, the junction box further includes a limiting channel component fixed to the vehicle body 200 and / or the box body 1. The limiting channel component includes a first limiting channel component 31 and a second limiting channel component 32. The first limiting channel component 31 and the second limiting channel component 32 are respectively curved. The bending path of the first limiting channel component 31 guides the wire harness 110 from the outside of the box body 1 downward through the first wiring port 11 to the inside of the box body 1, changing from a vertical direction to a horizontal direction. The bending path of the second limiting channel component 32 guides the wire harness 110 from the inside of the box body 1 downward through the second wiring port 12 to the outside of the box body 1, changing from a horizontal direction to a vertical direction.

[0040] In this optional embodiment, by setting a curved limiting channel component 31 and a limiting channel component 32, a continuous and smooth guiding path can be provided during the process of the wire harness 110 entering and exiting the housing 1. Specifically, the limiting channel component 31 guides the wire harness 110 to smoothly turn from the vertical direction to the horizontal direction to enter the housing 1, while the limiting channel component 32 guides the wire harness 110 to smoothly turn from the horizontal direction to the vertical direction to exit the housing 1. This structure avoids the wire harness 110 from making sharp bends or folds at the turning points, significantly reduces the risk of stress concentration, insulation wear or breakage caused by excessive bending of the wire harness 110, and improves the service life and electrical safety of the wire harness 110. Secondly, the limiting channel component 31 of the bending path effectively constrains the wiring harness 110, which can reduce the friction of the wiring harness 110 at the edge of the junction box 1 during vehicle movement and steering, and reduce the risk of the wiring harness 110 shifting, tangling or loosening under vehicle vibration, bumps and other factors, so as to avoid short circuit, open circuit and other faults as much as possible, and enhance the working stability and environmental adaptability of the junction box under complex working conditions. In addition, the above wiring methods improve the neatness and maintainability of the vehicle wiring harness layout. By rationally designing the bending radius and installation position, compact wiring is achieved within the limited vehicle space, and the space utilization efficiency around the junction box is optimized.

[0041] The limiting channel components (limiting channel component 1 31 and limiting channel component 2 32) are respectively fixed to the vehicle body 200 and / or the box body 1, including the following installation schemes: (1) The limiting channel component is fixed to the vehicle body 200 and is in a positional relationship with the box body 1 that is not connected to each other but is interconnected; (2) The limiting channel component is fixed to the box body 1, and the fixing method includes but is not limited to plugging or integral manufacturing with the box body 1 or fixed connection by connecting nails or other fixing methods, and the limiting channel component is not fixed to the vehicle body 200; (3) The limiting channel component is fixed to both the box body 1 and the vehicle body 200.

[0042] Regarding the specific fixing method of the aforementioned limiting channel component to the vehicle body 200, it can be fixed by snap-fit, connection or bonding through a fastener, etc. In a specific optional embodiment, limiting channel component 1 31 and limiting channel component 2 32 are respectively provided on the side wall facing the box body 1, which are used to cooperate with the fastener to fix and install on the vehicle body 200. The fastener can be a screw, rivet or other structural component that can be fixed and connected.

[0043] It should be noted that, for the above installation methods, it is preferable to fix the limiting channel component to the vehicle body 200 and / or the box 1 in a detachable manner (such as snap-fit ​​or fixed connection through detachable fasteners). The independent setting of the limiting channel component makes it easy to flexibly adjust the installation method according to different vehicle layouts, and has good versatility and scalability, which is suitable for the junction box integration needs in various vehicle electrical system architectures.

[0044] The specific shapes of the aforementioned limiting channel component 31 and limiting channel component 32 can be selected as tubular structures, through which the wire harness 110 is passed during installation. Alternatively, other limiting structures can be used. In some optional embodiments of this example, the inner walls of the radial cross-sections of the aforementioned limiting channel component 31 and limiting channel component 32 are both arc-shaped. The limiting channel component also includes an anti-detachment structure to prevent the wire harness 110 from detaching from the respective channels of the limiting channel component 31 and limiting channel component 32. In this optional embodiment, the inner walls of the radial cross-sections of both limiting channel component 31 and limiting channel component 32 are arc-shaped, which can provide a continuous and smooth guiding path during the bending of the wire harness 110, avoiding the risk of stress concentration, insulation wear or breakage caused by sharp bends or folds in the wire harness 110 at the turning point. The limiting channel component under this structure forms an opening on one radial side, which facilitates the insertion of the wire harness 110 into the limiting channel component, making installation simple and convenient. At the same time, the anti-detachment structure positions and prevents the wire harness 110 from detaching from the limiting channel component, effectively preventing the wire harness 110 from coming off the inside of the limiting channel component, and ensuring the stability and safety of the wire harness 110 during vehicle operation.

[0045] Further, in an optional embodiment of this example, the anti-detachment structure includes a limiting groove provided on the inner wall of each of the limiting channel member 31 and the limiting channel member 32; and / or, the anti-detachment structure includes a wire harness binding member that cooperates with the limiting channel member 31 and the limiting channel member 32. This optional embodiment includes at least the following specific structural forms: (1) The anti-detachment structure adopts a limiting groove provided on the inner wall of the limiting channel member. The limiting groove extends along the axial direction of the limiting channel member. Specifically, it can be formed by the inner wall of the limiting channel member being recessed from the inside to the outside to form the limiting groove, or by providing two rows of ribs on the inner wall of the limiting channel member that extend along the axial direction of the limiting channel member and protrude toward the inner side of the limiting channel member (each rib can be a continuous structure along the axial direction of the limiting channel member, or it can be formed by arranging multiple ribs with breaks). (2) The above-mentioned anti-detachment structure adopts a wire harness binding member. A through hole is provided on both sides of the radial direction of the limiting channel member. The wire harness binding member passes through the two through holes to constrain the wire harness 110. Alternatively, a binding seat with a through hole is provided on both sides of the vehicle body 200 located on the radial direction of the limiting channel member. The wire harness binding member passes through the through holes of the two binding seats to constrain the wire harness 110. Alternatively, the wire harness binding member directly binds around the limiting channel member in the circumferential direction. (3) The anti-detachment structure includes both the aforementioned limiting groove and the aforementioned wire harness binding member.

[0046] In this embodiment, the box mounting structure for fixing the box 1 to the vehicle body 200 has various optional structural forms, including but not limited to, as shown in the reference. Figures 1 to 5The box mounting structure includes two mounting seats 21. The two mounting seats 21 are respectively located on opposite sides of the box 1. Each mounting seat 21 has mounting holes 211 for engaging with fasteners to fix the box 1 to the vehicle body 200. The fasteners can be screws, rivets, bolt-nut assemblies, fixing pins, clamps, or other types of fixing structures. Optionally, but not limited to, a bent flange 212 is also provided on the side of the mounting seat 21 to shield the edge of the mounting seat 21 and prevent interference with other components on the vehicle body 200.

[0047] To simplify the installation process of fixing the box 1 to the vehicle body 200, refer to Figures 6 to 7 In some other specific optional embodiments of this example, the box mounting structure includes a mounting base 21 and a positioning base 22; the mounting base 21 and the positioning base 22 are respectively provided on opposite sides of the box 1; the mounting base 21 is provided with a mounting hole 211 for cooperating with a fastener to fix it on the vehicle body 200, and the fastener may be a screw or rivet or bolt and nut assembly, a fixing pin, a clamp or other types of fixing structure; the positioning base 22 protrudes outward from the box 1 and is used to insert into the slot 23 provided on the vehicle body 200 to position one side of the box 1. When installing the box 1 onto the vehicle body 200, first insert the positioning seat 22 on one side of the box 1 into the slot 23 provided on the vehicle body 200 to initially position one side of the box 1. Then, align the mounting seat 21 with the mounting hole provided on the vehicle body 200, and fix the mounting seat 21 to the vehicle body 200 in conjunction with the fastener. During the entire installation process, only the fastener needs to be installed on one side of the mounting seat 21. Furthermore, the positioning seat 22 provides auxiliary positioning during installation, reducing installation steps, simplifying installation, and improving installation efficiency.

[0048] Reference Figures 6 to 7 In the optional embodiment of the box mounting structure including the mounting base 21 and the positioning base 22, the box mounting structure may further optionally include a locking structure, which is integrally or fixedly connected to the vehicle body 200, and the slot 23 is provided in the locking structure; a lock hole 221 is provided on the positioning base 22; the locking structure also includes a linkage component provided in the slot 23, the linkage component including an elastic energy storage structure, a locking tongue and an unlocking button; in the locked condition, when the positioning base 22 is inserted into the slot 23, it overcomes the elastic force of the elastic energy storage structure to squeeze the locking tongue until the locking tongue is inserted into the lock hole 221 under the elastic reset action of the elastic energy storage structure; in the unlocked condition, the unlocking button is pressed to drive the locking tongue to overcome the elastic force of the elastic energy storage structure and disengage from the lock hole 221.

[0049] In this optional embodiment, after the locking tongue is inserted into the locking hole 221, the box body 1 is firmly locked, which can prevent unnecessary shaking and abnormal noise after the positioning seat 22 is inserted into the slot 23. At the same time, it can prevent the positioning seat 22 from falling out of the slot 23 due to vibration or external force (such as collision) during vehicle movement, thereby improving the stability and reliability of the junction box installation structure.

[0050] Specifically, refer to Figure 8 and Figure 9 A specific optional structure for the aforementioned linkage component is provided. In this structure, the elastic energy storage structure included in the linkage component includes an actuating spring 51 and a return spring 52 disposed inside the slot 23, the locking tongue is a bent rotating component 53, and the unlocking button is a pressing rod 54. The slot 23 is defined to have a first direction and a second direction that are perpendicular to each other. During assembly, the positioning seat 22 is inserted into the slot 23 from the first end 231 of the slot toward the second end 232 of the slot along the first direction.

[0051] The actuating spring 51 and the return spring 52 extend along a first direction and are spaced apart from each other in a second direction. One end of each is fixedly connected to the inner wall of the second end 232 of the slot, and the free end of the actuating spring 51 faces the insertion port of the first end 231 of the slot. The bent portion of the rotating member 53 is rotatably mounted on the inner wall of the slot 23 via a pivot and is located between the actuating spring 51 and the return spring 52 along the second direction. The first end of the rotating member 53 abuts against the free end of the return spring 52, and the second end of the rotating member 53 is provided with a hook 531. The side of the hook 531 facing the insertion port of the first end 231 of the slot has an arc-shaped surface 5311. The return spring 52 is configured to always have a tendency to push the first end of the rotating member 53 towards the first end 231 of the slot, thereby driving the rotating member 53 to rotate and causing the hook 531 to abut against the free end of the actuating spring 51. The pressing rod 54 is located on the side of the first end of the rotating member 53 facing the first end 231 of the slot, and the pressing rod 54 slides back and forth in the first direction and is limited to the inside of the slot 23; a part of the pressing rod 54 extends out of the slot 23 as the pressing end 541.

[0052] In the locked state, when the positioning seat 22 is inserted into the slot 23 along the insertion port provided at the first end 231 of the slot, it presses the arc-shaped surface 5311 of the hook 531 to press the hook 531 towards the pressing rod 54 in the second direction until the hook 531 is inserted into the lock hole 221 under the action of the return spring 52 (when the positioning seat 22 is inserted into the slot 23, it overcomes the elastic force of the elastic energy storage structure to press the lock tongue until the lock tongue is inserted into the lock hole 221 under the elastic return action of the elastic energy storage structure); in the unlocked state, the pressing end 541 of the pressing rod 54 is pressed towards the second end 232 of the slot to drive the rotating part 53 to rotate against the elastic force of the return spring 52, thereby causing the hook 531 to disengage from the lock hole 221 (press the unlock button to drive the lock tongue to disengage from the lock hole 221 against the elastic force of the elastic energy storage structure).

[0053] It should be noted that the above is only one specific structural form of the linkage component. In other optional embodiments of this example, the linkage component can also be other structures that can realize locking and unlocking functions.

[0054] In this embodiment, the shape of the box 1 is not specifically limited. The box 1 can be square, round, polygonal, or other regular or irregular shapes. It can also be customized according to the space of the vehicle body 200. In an optional embodiment, the box 1 is a cuboid or cube. The wire harness adapter 6 is arranged in the center of the inner cavity of the box 1. In this structure, the wire harness adapter 6 can be fixed by two sets of opposite sides of the box 1 to prevent shaking and improve assembly stability. At the same time, the box 1 is more beautiful and fits the vehicle body 200 more neatly and simply, which is conducive to improving the user experience.

[0055] In this embodiment, the side surface of the box 1 facing the vehicle body 200 can be a closed side wall or an open one, depending on the specific installation requirements and space constraints. When an open one is provided, the box 1 is fastened to the corresponding side surface of the vehicle body 200. In this way, a fixing seat for fixing the wire harness adapter 6 can be designed on the vehicle body 200, and the wire harness adapter 6 can be fixed to the vehicle body 200. Then, the box 1 is inverted for installation, which further improves the anti-shake effect of the wire harness adapter 6. Of course, when the side surface of the box 1 facing the vehicle body 200 is open and the box 1 is directly fastened to the corresponding side surface of the vehicle body 200, the wire harness adapter 6 can also be fixed to the box 1 or directly confined inside the box 1 without any fixing, instead of being fixed to the vehicle body 200.

[0056] In an optional embodiment, the side surface of the housing 1 facing the vehicle body 200 is open and fastened to the corresponding side surface of the vehicle body 200. The side openings 101 of the first wiring port 11 and the second wiring port 12 facing the vehicle body 200 are provided with side openings 101. A blocking part 4 protruding horizontally outward from the housing 1 is provided at the side opening 101 of the first wiring port 11. At the side opening 101 of the first wiring port 11, the upper end of the blocking part 4 is connected to the inner wall of the first wiring port 11, and the lower end is vertically spaced from the inner wall of the first wiring port 11. At the side opening 101 of the second wiring port 12, the lower end of the blocking part 4 is connected to the inner wall of the second wiring port 12, and the upper end is vertically spaced from the inner wall of the second wiring port 12.

[0057] In this optional embodiment, the design of the blocking part 4 not only facilitates the entry and exit of the wire harness 110, but also effectively prevents the wire harness 110 from loosening or falling off at the corresponding terminal under vibration or external force (such as collision) by utilizing the spacing structure of the blocking part 4, thereby improving the connection stability and reliability of the wire harness 110.

[0058] Second aspect This utility model also provides an electric bicycle, which includes a junction box provided by any of the optional embodiments of the first aspect. The junction box is installed on the body 200 of the electric bicycle. The specific installation method and the effect that can be achieved can be obtained by referring to the optional or preferred embodiments of the first aspect.

[0059] Finally, it should be noted that: The embodiments and optional implementations described above in this specification are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing optional implementations, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Furthermore, it is emphasized again that, in the absence of conflict, the features of the embodiments and optional implementations in the embodiments in this specification can be combined with each other.

Claims

1. A junction box, characterized in that, include: The box (1) has an inner cavity for accommodating the wire harness adapter (6), and the side wall of the box (1) is provided with a wiring port one (11) and a wiring port two (12) communicating with the inner cavity. The box mounting structure is fixed or integrally connected to the box (1) and is used to fix the box (1) to the vehicle body (200); The direction of motion of the vehicle body (200) when it moves forward is defined as the reference coordinate system: The first connection port (11) and the second connection port (12) are both located on the left or right side wall of the box (1). The first connection port (11) is located above the second connection port (12) and is used to guide the wire harness (110) from the outside of the box (1) to the inside of the box (1) from a vertical direction to a horizontal direction. The second connection port (12) is used to guide the wire harness (110) from the inside of the box (1) to the outside of the box (1) from a horizontal direction to a vertical direction.

2. The junction box according to claim 1, characterized in that, The junction box further includes a limiting channel component fixed to the vehicle body (200) and / or the box body (1), the limiting channel component comprising: The limiting channel component (31) is curved and its bending path guides the wire harness (110) from the outside of the box (1) downward through the wiring port (11) into the inside of the box (1) from the vertical direction to the horizontal direction; The limiting channel component two (32) is curved and its curved path guides the wire harness (110) from the inside of the box (1) downward through the connection port two (12) to the outside of the box (1) from the horizontal direction to the vertical direction.

3. The junction box according to claim 2, characterized in that, The first limiting channel component (31) and the second limiting channel component (32) are respectively provided with limiting mounting holes (301) on one side wall facing the box (1) for cooperating with the fixing component to be fixedly installed on the vehicle body (200).

4. The junction box according to claim 2, characterized in that, The inner walls of the radial cross sections of the first limiting channel component (31) and the second limiting channel component (32) are both arc-shaped; the limiting channel component also includes an anti-detachment structure for preventing the wire harness (110) from detaching from the respective channels of the first limiting channel component (31) and the second limiting channel component (32).

5. The junction box according to claim 4, characterized in that, The anti-detachment structure includes a limiting groove provided on the inner side wall of each of the limiting channel component one (31) and the limiting channel component two (32); And / or, the anti-detachment structure includes a wire harness binding member that cooperates with the first limiting channel member (31) and the second limiting channel member (32).

6. The junction box according to claim 1, characterized in that, The housing mounting structure includes a mounting base (21) and a positioning base (22); The mounting base (21) and the positioning base (22) are respectively located on opposite sides of the box body (1); the mounting base (21) is provided with mounting holes (211) for use in conjunction with fasteners to fix it on the vehicle body (200); The positioning seat (22) protrudes outward from the box body (1) and is used to insert into the slot (23) provided on the vehicle body (200) to position one side of the box body (1).

7. The junction box according to claim 6, characterized in that, The box mounting structure also includes a locking structure, which is integrally or fixedly connected to the vehicle body (200), and the slot (23) is provided in the locking structure; A locking hole (221) is provided on the positioning seat (22); The latch structure also includes a linkage component disposed in the slot (23), the linkage component including an elastic energy storage structure, a locking tongue and an unlocking button; In the locked state, when the positioning seat (22) is inserted into the slot (23), it overcomes the elastic force of the elastic energy storage structure to squeeze the lock tongue until the lock tongue is inserted into the lock hole (221) under the elastic reset action of the elastic energy storage structure; in the unlocked state, the unlock button is pressed to drive the lock tongue to overcome the elastic force of the elastic energy storage structure and disengage from the lock hole (221).

8. The junction box according to claim 1, characterized in that, The box mounting structure includes two mounting seats (21); the two mounting seats (21) are respectively located on opposite sides of the box (1), and the two mounting seats (21) are respectively provided with mounting holes (211) for use in conjunction with fasteners to fix them on the vehicle body (200); And / or, the box (1) is a cuboid or cube, and the wire harness adapter (6) is arranged at the center of the inner cavity of the box (1).

9. The junction box according to claim 1, characterized in that, The box (1) has an open side surface facing the vehicle body (200) and is fastened to the corresponding side surface of the vehicle body (200). The first wiring port (11) and the second wiring port (12) have side openings (101) facing the vehicle body (200). The side opening (101) is provided with a blocking part (4) that protrudes horizontally toward the outside of the box (1). At the side opening (101) of the first wiring port (11), the upper end of the blocking part (4) is connected to the inner wall of the first wiring port (11), and the lower end is vertically spaced from the inner wall of the first wiring port (11); at the side opening (101) of the second wiring port (12), the lower end of the blocking part (4) is connected to the inner wall of the second wiring port (12), and the upper end is vertically spaced from the inner wall of the second wiring port (12).

10. An electric bicycle, characterized in that, The junction box includes any one of claims 1 to 9.

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