Low resistance electric vehicle power harness

Abstract

The utility model discloses a low resistance's electric motor car power harness, including cable, the cable outer wall is equipped with the protective sleeve, and cable outer wall is installed with the hoop, and the hoop outer wall is provided with the floating mechanism, and cable one end electric connection has the plug, and the plug outer surface is provided with the locking mechanism, and the connecting plate fixed connection is in the hoop outer surface, and the floating plate is fixed in connecting plate one side, and the floating box sliding connection is in the floating plate outer wall, and the connecting block fixed connection is in the floating box outer surface, and two springs one respectively fixed connection is in the floating plate top and bottom, and two springs one another end respectively with floating box inner wall top and bottom fixed connection. The utility model discloses through the floating mechanism can y effectively prevent the looseness that appears because of the body vibration, through through the locking mechanism can guarantee the plug and the stable connection of the spout, to this guarantee plug and the conductive contact of interface close adhesion, control contact resistance at extremely low level.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle wiring harness technology, and in particular to a low-resistance electric vehicle power wiring harness. Background Technology

[0002] In existing technologies, the electric vehicle power harness is a key component that integrates multiple cables together. Its core purpose is to achieve efficient transmission of power and signals within the electric vehicle. It can connect core power components such as batteries, motors, and controllers, and stably deliver the electrical energy stored in the battery to the motor to drive the vehicle.

[0003] A search revealed a Chinese patent publication number CN220895237U, which discloses a flame-retardant and water-stopping electric vehicle wiring harness. The harness includes a connector plug fixedly fitted at the end of the harness and electrically connected to the inner wire core. A steel sleeve is fitted onto the wire segment of the harness near the connector plug for fixed connection. A water-stopping component, including a nut, is fitted onto a threaded section of the steel sleeve and threadedly connected to it. An abutment ring is fixedly fitted onto the inner end face of the nut, and an elastic, pleated rubber airbag is mounted on the abutment ring and fitted onto the steel sleeve. While the wiring harness in this utility model enhances its flame-retardant performance through a heat-resistant layer and an asbestos flame-retardant layer, the connection plug and socket are fixed using only conventional plugging. Under prolonged exposure to road bumps, vehicle body twisting, and other vibrations, the continuous pulling force may cause the plug and socket to loosen. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a low-resistance electric vehicle power harness.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low-resistance electric vehicle power harness includes a cable, the outer wall of which is fitted with a protective sleeve, a clamp is installed on the outer wall of the cable, a floating mechanism is provided on the outer wall of the clamp, and one end of the cable is electrically connected to a plug, the outer surface of which is provided with a locking mechanism.

[0007] As a further embodiment of this utility model: the floating mechanism includes a connecting plate, a floating plate, a spring, a connecting block and a floating box, and the connecting plate is fixedly connected to the outer surface of the clamp.

[0008] As a further embodiment of this utility model: the floating plate is fixed to one side of the connecting plate, the floating box is slidably connected to the outer wall of the floating plate, and the connecting block is fixedly connected to the outer surface of the floating box.

[0009] As a further embodiment of this utility model: the two springs are respectively fixedly connected to the top and bottom of the floating plate, and the other end of the two springs is respectively fixedly connected to the top and bottom of the inner wall of the floating box. The floating box is connected to the rigid structure of the electric vehicle through a connecting block.

[0010] As a further embodiment of this utility model: the locking mechanism includes a connecting ring, a handwheel, a pressing column, a bracket, a fixing pin, a spring, and a snap-fit ​​connector, with the connecting ring sleeved on the outer wall of the plug.

[0011] As a further embodiment of this utility model: the bracket is fixedly connected to the outer wall of the connecting ring, the pressing column is rotatably connected to the inner wall of the bracket, and the handwheel is fixedly connected to one end of the pressing column.

[0012] As a further embodiment of this utility model: the fixing pin is fixed to the outer wall of the pressing column, the buckle connector is installed on the rigid structure of the electric vehicle, the second spring is fixedly connected to one side of the inner wall of the buckle connector, and the outer wall of the buckle connector is provided with a guide groove.

[0013] Compared with the prior art, this utility model provides a low-resistance electric vehicle power harness, which has the following beneficial effects:

[0014] Multiple cables are bundled together by a protective sleeve and connected to a floating mechanism via a clamp, forming an integrated structure with buffering capabilities. In use, the plug at one end of the cable is connected to the power component interface of the electric vehicle and fixed by a locking mechanism to establish a stable conductive path. During vehicle operation, the floating mechanism buffers vibrations caused by road bumps, preventing the cable ends from loosening due to pulling. The locking mechanism continuously ensures that the plug and interface are tightly fitted, reducing contact resistance fluctuations. Thus, the floating mechanism can prevent loosening caused by vehicle vibration, and the locking mechanism can ensure a stable connection between the plug and the socket, thereby ensuring a tight fit between the conductive contacts of the plug and the interface and controlling the contact resistance to an extremely low level.

[0015] When the electric vehicle vibrates while driving, the cable shakes due to the vehicle's movement. This vibration is transmitted to the connecting plate through the clamp, which in turn causes the floating plate to move synchronously. As the floating plate slides within the floating box, it compresses or stretches the top and bottom springs. The elastic force of the springs buffers the vibration energy, transforming the violent shaking of the cable into a small-amplitude, controllable sliding of the floating plate within the floating box. Since the floating box is fixed to the rigid structure of the vehicle body by the connecting block, its position is relatively stable, ultimately protecting the cable connectors from direct vibration. This reduces the pulling force on the cable connectors caused by vehicle body vibration, preventing loosening of the connectors due to vibration.

[0016] When the plug is inserted into the socket, the pressing pin enters the snap-fit ​​connector. At this time, turning the handwheel causes the retaining pin to move along the guide groove of the snap-fit ​​connector. During this process, the pressing pin gradually compresses the second spring. After the plug is connected, the plug is released. At this time, the second spring pushes the pressing pin back to its original position, so that the retaining pin fits tightly with the guide groove, allowing the plug to be stably connected to the socket. This ensures that the plug always maintains axial pressure in the direction of the interface. This continuous pressure can effectively counteract the loosening tendency caused by vehicle vibration, ensuring that the conductive contacts of the plug and the interface fit tightly and keeping the contact resistance at an extremely low level.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a front view of a low-resistance electric vehicle power harness proposed in this utility model.

[0019] Figure 2 This is a cross-sectional view of a low-resistance electric vehicle power harness proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the floating mechanism in a low-resistance electric vehicle power harness proposed in this utility model.

[0021] Figure 4 This is a cross-sectional view of a floating mechanism in a low-resistance electric vehicle power harness proposed in this utility model.

[0022] Figure 5 This is a partially enlarged schematic diagram of the locking mechanism in a low-resistance electric vehicle power harness proposed in this utility model.

[0023] In the diagram: 1. Cable; 2. Protective sleeve; 3. Floating mechanism; 4. Clamp; 5. Plug; 6. Locking mechanism; 301. Connecting plate; 302. Floating plate; 303. Spring 1; 304. Connecting block; 305. Floating box; 601. Connecting ring; 602. Handwheel; 603. Pressing post; 604. Bracket; 605. Fixing pin; 606. Spring 2; 607. Snap-fit ​​connector. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] A low-resistance electric vehicle power harness, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the cable includes a cable 1, a protective sleeve 2 is fitted on the outer wall of the cable 1, a clamp 4 is installed on the outer wall of the cable 1, a floating mechanism 3 is provided on the outer wall of the clamp 4, and a plug 5 is electrically connected to one end of the cable 1. A locking mechanism 6 is provided on the outer surface of the plug 5.

[0028] Multiple cables 1 are integrated into a bundle by the protective sleeve 2 and connected to the floating mechanism 3 through the clamp 4 to form an overall structure with buffering capacity. In use, the plug 5 at one end of the cable 1 is connected to the interface of the electric vehicle power component and fixed by the locking mechanism 6 to establish a stable conductive path. When the vehicle is in motion, the floating mechanism 3 will buffer the vibration caused by road bumps and prevent the two ends of the cable 1 from loosening due to pulling. The locking mechanism 6 will continuously ensure that the plug 5 and the interface are tightly fitted, reducing contact resistance fluctuations. Thus, the floating mechanism 3 can prevent loosening caused by vehicle vibration, and the locking mechanism 6 can ensure a stable connection between the plug 5 and the socket, thereby ensuring that the conductive contacts of the plug 5 and the interface are tightly fitted and controlling the contact resistance to an extremely low level.

[0029] To protect both ends of cable 1 from being loosened due to vibration, such as Figure 2 and Figure 3The floating mechanism 3 includes a connecting plate 301, a floating plate 302, a spring 303, a connecting block 304, and a floating box 305. The connecting plate 301 is fixedly connected to the outer surface of the clamp 4, the floating plate 302 is fixed to one side of the connecting plate 301, the floating box 305 is slidably connected to the outer wall of the floating plate 302, the connecting block 304 is fixedly connected to the outer surface of the floating box 305, the two springs 303 are respectively fixedly connected to the top and bottom of the floating plate 302, and the other ends of the two springs 303 are respectively fixedly connected to the top and bottom of the inner wall of the floating box 305. The floating box 305 is connected to the rigid structure of the electric vehicle through the connecting block 304.

[0030] When the electric vehicle vibrates while driving, cable 1 shakes due to the bumps in the vehicle body. The vibration is transmitted to the connecting plate 301 through the clamp 4, which in turn drives the floating plate 302 to move synchronously. When the floating plate 302 slides in the floating box 305, it squeezes or stretches the springs 303 at the top and bottom. The elastic force of the springs 303 buffers the vibration energy in the opposite direction, converting the violent shaking of cable 1 into a small-amplitude controllable sliding of the floating plate 302 in the floating box 305. Since the floating box 305 is fixed to the rigid structure of the vehicle body through the connecting block 304, its position is relatively stable, ultimately protecting the connectors at both ends of cable 1 from direct vibration. This reduces the pulling force on the connectors at both ends of cable 1 caused by vehicle body vibration, and avoids loosening of the connectors due to vibration.

[0031] To ensure that plug 5 is always firmly inserted into the interface to maintain low resistance, such as Figure 5 As shown, the locking mechanism 6 includes a connecting ring 601, a handwheel 602, a pressing column 603, a bracket 604, a fixing pin 605, a second spring 606, and a snap-fit ​​connector 607. The connecting ring 601 is sleeved on the outer wall of the plug 5. The bracket 604 is fixedly connected to the outer wall of the connecting ring 601. The pressing column 603 is rotatably connected to the inner wall of the bracket 604. The handwheel 602 is fixedly connected to one end of the pressing column 603. The fixing pin 605 is fixed to the outer wall of the pressing column 603. The snap-fit ​​connector 607 is installed on the rigid structure of the electric vehicle. The second spring 606 is fixedly connected to one side of the inner wall of the snap-fit ​​connector 607. A guide groove is provided on the outer wall of the snap-fit ​​connector 607.

[0032] When plug 5 is inserted into the socket, pressing pin 603 enters the snap-fit ​​connector 607. At this time, turning handwheel 602 causes fixing pin 605 to move along the guide groove of snap-fit ​​connector 607. During this process, pressing pin 603 gradually compresses spring 606. After plug 5 is connected, plug 5 is released. At this time, spring 606 pushes pressing pin 603 to reset, so that fixing pin 605 fits tightly with guide groove, so that plug 5 can be stably connected to the socket. Thus, plug 5 always maintains axial pressure in the direction of interface. This continuous pressure can effectively counteract the loosening tendency caused by vehicle vibration, ensure that plug 5 and the conductive contact of interface fit tightly, and control the contact resistance at an extremely low level.

[0033] Working principle: Multiple cables 1 are integrated into a bundle by the protective sleeve 2 and connected to the floating mechanism 3 through the clamp 4 to form an overall structure with buffering capacity. In use, the plug 5 at one end of the cable 1 is connected to the interface of the electric vehicle power component and fixed by the locking mechanism 6 to establish a stable conductive path. When the vehicle is in motion, the floating mechanism 3 will buffer the vibration caused by road bumps to prevent the two ends of the cable 1 from loosening due to pulling. The locking mechanism 6 will continuously ensure that the plug 5 is tightly fitted to the interface to reduce contact resistance fluctuations.

[0034] When the electric vehicle vibrates while driving, cable 1 shakes due to the bumps of the vehicle body. The vibration is transmitted to the connecting plate 301 through the clamp 4, which in turn drives the floating plate 302 to move synchronously. When the floating plate 302 slides in the floating box 305, it squeezes or stretches the springs 303 at the top and bottom. The elastic force of the springs 303 buffers the vibration energy in the opposite direction, converting the violent shaking of cable 1 into a small-amplitude controllable sliding of the floating plate 302 in the floating box 305. Since the floating box 305 is fixed to the rigid structure of the vehicle body through the connecting block 304, its position is relatively stable, ultimately protecting the connectors at both ends of cable 1 from direct vibration.

[0035] When plug 5 is inserted into the socket, pressing pin 603 enters the snap-fit ​​connector 607. At this time, turn handwheel 602 to move fixing pin 605 along the guide groove of snap-fit ​​connector 607. During this process, pressing pin 603 gradually squeezes spring 606. When plug 5 is connected, release plug 5. At this time, spring 606 pushes pressing pin 603 to reset, so that fixing pin 605 fits tightly with guide groove, so that plug 5 can be stably connected to the socket.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-resistance electric vehicle power harness, comprising a cable (1), characterized in that, The cable (1) is fitted with a protective sleeve (2) on its outer wall, a clamp (4) is installed on the outer wall of the cable (1), a floating mechanism (3) is provided on the outer wall of the clamp (4), and a plug (5) is electrically connected to one end of the cable (1). A locking mechanism (6) is provided on the outer surface of the plug (5).

2. The low-resistance electric vehicle power harness according to claim 1, characterized in that, The floating mechanism (3) includes a connecting plate (301), a floating plate (302), a spring (303), a connecting block (304), and a floating box (305), and the connecting plate (301) is fixedly connected to the outer surface of the clamp (4).

3. The low-resistance electric vehicle power harness according to claim 2, characterized in that, The floating plate (302) is fixed to one side of the connecting plate (301), the floating box (305) is slidably connected to the outer wall of the floating plate (302), and the connecting block (304) is fixedly connected to the outer surface of the floating box (305).

4. The low-resistance electric vehicle power harness according to claim 2, characterized in that, The two springs (303) are fixedly connected to the top and bottom of the floating plate (302) respectively, and the other end of the two springs (303) is fixedly connected to the top and bottom of the inner wall of the floating box (305) respectively. The floating box (305) is connected to the rigid structure of the electric vehicle through the connecting block (304).

5. The low-resistance electric vehicle power harness according to claim 1, characterized in that, The locking mechanism (6) includes a connecting ring (601), a handwheel (602), a pressing column (603), a bracket (604), a fixing pin (605), a second spring (606), and a snap-fit ​​connector (607), and the connecting ring (601) is sleeved on the outer wall of the plug (5).

6. The low-resistance electric vehicle power harness according to claim 5, characterized in that, The bracket (604) is fixedly connected to the outer wall of the connecting ring (601), the pressing column (603) is rotatably connected to the inner wall of the bracket (604), and the handwheel (602) is fixedly connected to one end of the pressing column (603).

7. The low-resistance electric vehicle power harness according to claim 5, characterized in that, The fixing pin (605) is fixed to the outer wall of the pressing column (603), the buckle connector (607) is installed on the rigid structure of the electric vehicle, the second spring (606) is fixedly connected to one side of the inner wall of the buckle connector (607), and the outer wall of the buckle connector (607) is provided with a guide groove.

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