Wire harness device for high voltage connectors within a power battery pack
Patent Information
- Application Number
- CN202610832713.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-10
- Publication Date
- 2026-09-22
AI Technical Summary
1、该用于动力电池包内高压连接器的线束装置，通过记忆金属环、上楔形块、下楔形块、压紧板与复位簧的联动结构设计，能够在大电流传输、连接器对接位置温度升高至相变温度以上时，利用记忆金属环的受热膨胀形变，自动驱动楔形块传动机构带动压紧板向内夹紧公端连接器，动态补偿因热循环膨胀产生的接触间隙，有效增大端子接触压力，降低接触电阻，避免公端连接器与母端连接器本体出现接触松动、虚接发热、微动腐蚀及连接失效问题。
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Figure CN122800951A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of high-voltage connector harness technology, specifically a harness device for high-voltage connectors in power battery packs. Background Technology
[0002] As the core power component of new energy vehicles, the power battery pack plays a crucial role in high-voltage power transmission through its internal high-voltage connectors and wiring harnesses. These devices are mainly used to achieve stable electrical connections between the various components inside the battery pack, ensuring reliable current transmission.
[0003] Existing high-voltage connector harnesses, under conditions of high-current fast charging and continuous high-power discharging, experience significant heat buildup at the connector insertion points due to contact resistance. High temperatures exacerbate thermal expansion and stress relaxation of the contacts, leading to increased terminal clearance and decreased contact pressure. Simultaneously, continuous vibrations during vehicle operation further cause micron-level loosening at the insertion points, resulting in poor contact, localized overheating, arc erosion, and fretting corrosion. Existing harnesses rely solely on fixed elastic elements for pre-tightening, failing to automatically enhance clamping effectiveness with rising temperatures. This makes them highly susceptible to contact pressure attenuation and connection loosening after high-current heating. Furthermore, their heat dissipation structures are mostly passive, resulting in low efficiency and an inability to adaptively activate cooling based on temperature rise. This prevents rapid heat dissipation, further exacerbating the vicious cycle of terminal loosening, increased resistance, and overheating failure, making it difficult to meet the stability and safety requirements of high-voltage connection systems under high-power, high-current conditions. Summary of the Invention
[0004] The present invention provides a wiring harness device for a high-voltage connector in a power battery pack, which solves the problems mentioned in the background art.
[0005] This invention provides the following technical solution: a wiring harness device for a high-voltage connector in a power battery pack, comprising a connector base, a male connector fixedly mounted at one end of the connector base, an elastic snap-fit connector fixedly mounted on the outer wall of the male connector, an inner conductive cylinder fixedly mounted in the inner cavity of the male connector, a female connector assembly provided at one end of the connector base near the male connector, a wiring harness body fixedly mounted at one end of the female connector assembly away from the connector base, a cable installed in the inner cavity of the wiring harness body, a flow channel formed in the inner cavity of the wiring harness body, a heat conduction channel formed on the inner wall of the flow channel, and a heat sink fixedly mounted on the outer wall of the wiring harness body.
[0006] As a preferred embodiment of the present invention: the female connector assembly includes a female connector body, the outer wall of the female connector body is provided with a snap-fit groove, the inner wall of the female connector body is fixedly fitted with a conductive terminal, the outer wall of the female connector body is fixedly fitted with an mounting sleeve, and the outer wall of the female connector body is fitted with a heat-conducting plate.
[0007] As a preferred embodiment of the present invention: a memory metal ring is embedded in the inner wall of the female connector body; a connecting rod is movably sleeved on the outer wall of the female connector body; a return spring is movably sleeved on the outer wall of the connecting rod; a clamping plate is fixedly mounted on the end of the connecting rod near the female connector body; a trigger plate is fixedly mounted on the end of the connecting rod away from the clamping plate; an upper wedge block is fixedly mounted on the side of the memory metal ring near the clamping plate; a lower wedge block is fixedly mounted on the side of the clamping plate near the memory metal ring; a movable groove is formed on the outer wall of the memory metal ring; and a start switch is fixedly mounted on the outer wall of the female connector body.
[0008] As a preferred technical solution of the present invention: a heat dissipation fin plate is installed at the bottom of the heat conduction plate, a heat dissipation drive shell is fixedly assembled on the outer wall of the female connector body, a micro drive motor is fixedly assembled in the inner cavity of the heat dissipation drive shell, a cooling fan is fixedly assembled on the power output shaft of the micro drive motor, a ventilation pipe is installed on the outer wall of the heat dissipation drive shell, and ventilation holes are opened on the inner wall of the heat dissipation drive shell.
[0009] As a preferred technical solution of the present invention: the opening position of the snap-fit groove corresponds to the installation position of the elastic snap-fit connector, the outer wall of the memory metal ring is in contact with the inner wall of the mounting sleeve, and the connecting rod passes through the outer wall of the female connector body and the inner cavity of the movable groove and is connected to the clamping plate.
[0010] As a preferred embodiment of the present invention: the two ends of the outer wall of the return spring are in contact with the end of the connecting rod and the outer wall of the female connector body, respectively, and the length of the return spring when it is at rest and not under force is equal to the length of the connecting rod.
[0011] As a preferred embodiment of the present invention: the outer wall shape of the upper wedge block near the lower wedge block matches the outer wall shape of the lower wedge block near the upper wedge block, and the phase transition temperature of the memory metal ring is 60℃~120℃.
[0012] As a preferred technical solution of the present invention: the installation position of the heat dissipation drive shell corresponds to the installation position of the heat conduction plate, the inner cavity of the ventilation pipe is connected to the inner cavity of the heat dissipation drive shell through the ventilation hole, and the inner cavity of the ventilation pipe is connected to the inner cavity of the guide channel.
[0013] As a preferred technical solution of the present invention: the trigger plate and the start switch cooperate to trigger each other, the start switch is a heat dissipation switch, and the start switch is electrically connected to the micro drive motor.
[0014] As a preferred embodiment of the present invention: the inner cavity of the flow channel is connected to the inner cavity of the heat conduction channel, the flow channel is an air flow channel, and the heat conduction channel is a heat conduction channel.
[0015] The present invention has the following beneficial effects: 1. This wiring harness device for high-voltage connectors in power battery packs, through the linkage structure design of a memory metal ring, upper wedge block, lower wedge block, clamping plate and reset spring, can automatically drive the wedge block transmission mechanism to clamp the clamping plate inward when the temperature at the connector mating position rises above the phase change temperature due to high current transmission. This dynamically compensates for the contact gap caused by thermal cycling expansion, effectively increases the terminal contact pressure, reduces the contact resistance, and avoids problems such as loose contact, poor connection and overheating, fretting corrosion and connection failure between the male and female connectors.
[0016] 2. This wiring harness device for high-voltage connectors in power battery packs features an integrated design of a temperature-adaptive triggering heat dissipation system. Simultaneously, the memory metal ring drives the clamping plate to perform clamping action, while the connecting rod and trigger plate synchronously trigger the heat release start switch, automatically starting the micro drive motor and cooling fan. This, along with the heat-conducting plate, heat dissipation fins, flow channels, heat conduction channels, and heat dissipation cover, forms a complete heat dissipation path. This allows for rapid and efficient heat dissipation from the connector mating position and the working cables, avoiding the risk of localized overheating, insulation aging, and ablation caused by heat accumulation. It achieves dual synergistic protection through temperature-controlled adaptive clamping and temperature-controlled adaptive heat dissipation. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the connector structure of the present invention; Figure 3 This is a schematic diagram of the male connector structure of the present invention; Figure 4 This is a schematic diagram of the female connector body structure of the present invention; Figure 5 This is a schematic cross-sectional view of the female connector body of the present invention; Figure 6 This is a schematic diagram of the conductive terminal structure of the present invention; Figure 7 This is a schematic diagram of the memory metal ring structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle; Figure 9 This is a schematic diagram of the clamping plate structure of the present invention; Figure 10 This is a schematic diagram of the cross-sectional structure of the wire harness body of the present invention; Figure 11 This is a schematic diagram of the heat dissipation drive shell structure of the present invention; Figure 12 This is a schematic diagram of the flow channel structure of the present invention.
[0018] In the diagram: 1. Connector; 2. Male connector; 3. Flexible snap-fit connector; 4. Inner conductive cylinder; 5. Female connector assembly; 6. Wire harness body; 7. Cable; 8. Flow channel; 9. Heat sink; 10. Heat conduction channel; 501. Female connector body; 502. Snap-fit groove; 503. Conductive terminal; 504. Mounting sleeve; 505. Heat-conducting plate; 506. Memory metal ring; 507. Connecting rod; 508. Clamping plate; 509. Return spring; 5010. Trigger plate; 5011. Start switch; 5012. Upper wedge block; 5013. Lower wedge block; 5014. Movable groove; 5015. Heat dissipation fin plate; 5016. Heat dissipation drive shell; 5017. Miniature drive motor; 5018. Cooling fan; 5019. Ventilation duct; 5020. Ventilation hole. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] Please see Figures 1-12 A wiring harness device for a high-voltage connector in a power battery pack includes a connector 1, a male connector 2 fixedly mounted at one end of the connector 1, a flexible snap-fit connector 3 fixedly mounted on the outer wall of the male connector 2, an inner conductive cylinder 4 fixedly mounted in the inner cavity of the male connector 2, a female connector assembly 5 provided at one end of the connector 1 near the male connector 2, a wiring harness body 6 fixedly mounted at one end of the female connector assembly 5 away from the connector 1, a cable 7 installed in the inner cavity of the wiring harness body 6, a flow channel 8 opened in the inner cavity of the wiring harness body 6, a heat conduction channel 10 opened in the inner wall of the flow channel 8, and a heat sink 9 fixedly mounted on the outer wall of the wiring harness body 6.
[0021] In the above structure, the female connector assembly 5 is mated with the male connector 2 provided at the end of the connector 1, and the elastic snap-fit connector 3 passes through the outer wall of the female connector assembly 5 and snaps onto the outer wall of the female connector assembly 5, thereby mating the male connector 2 and the female connector assembly 5 to achieve circuit connection and power transmission.
[0022] In a preferred embodiment: the female connector assembly 5 includes a female connector body 501, the outer wall of the female connector body 501 is provided with a snap-fit groove 502, the inner wall of the female connector body 501 is fixedly fitted with a conductive terminal 503, the outer wall of the female connector body 501 is fixedly fitted with a mounting sleeve 504, and a heat-conducting plate 505 is installed on the outer wall of the female connector body 501.
[0023] In the above structure, by providing conductive terminals 503 on the inner wall of the female connector body 501 and mounting sleeves 504 on the outer wall of the female connector body 501, when the female connector body 501 is mated with the male connector 2, the outer wall of the male connector 2 slides along the inner wall of the female connector body 501, and the conductive terminals 503 enter the inner cavity of the elastic snap-fit connector 3. During the process of the male connector 2 entering the inner cavity of the female connector body 501, the elastic snap-fit connector 3 is squeezed by the outer wall of the female connector body 501 until the elastic snap-fit connector 3 enters the inner cavity of the snap-fit groove 502, so that the elastic snap-fit connector 3 is snapped into the inner cavity of the snap-fit groove 502, and the male connector 2 and the female connector body 501 are mated.
[0024] In a preferred embodiment: a memory metal ring 506 is embedded in the inner wall of the female connector body 501; a connecting rod 507 is movably sleeved on the outer wall of the female connector body 501; a return spring 509 is movably sleeved on the outer wall of the connecting rod 507; a clamping plate 508 is fixedly mounted on the end of the connecting rod 507 near the female connector body 501; a trigger plate 5010 is fixedly mounted on the end of the connecting rod 507 away from the clamping plate 508; an upper wedge block 5012 is fixedly mounted on the side of the memory metal ring 506 near the clamping plate 508; a lower wedge block 5013 is fixedly mounted on the side of the clamping plate 508 near the memory metal ring 506; a movable groove 5014 is opened on the outer wall of the memory metal ring 506; and a start switch 5011 is fixedly mounted on the outer wall of the female connector body 501.
[0025] In the above structure, by embedding a shape memory metal ring 506 on the inner wall of the female connector body 501, after the female connector body 501 and the male connector 2 are mated, a large amount of heat will be generated at the mating point of the female connector body 501 and the male connector 2 when a large current passes through. After the temperature exceeds the phase transition temperature of the shape memory metal ring 506, and the shape memory metal ring 506 is made of nickel-titanium-based shape memory alloy, the shape memory metal ring 506 expands and deforms, producing an expansion effect, pushing the upper wedge block 5012 to move downward. At this time, under the action of the upper wedge block 5012, the lower wedge block 5013 is squeezed and moved downward, thereby driving the pressure plate 508. The pressure plate 508 applies pressure downward to the outer wall of the male connector 2, locking the male connector 2 and the female connector body 501, increasing the contact pressure between the female connector body 501 and the male connector 2, eliminating the gap generated by thermal cycling, and preventing loosening between the male connector 2 and the elastic snap connector 3.
[0026] In a preferred embodiment: a heat dissipation fin plate 5015 is installed at the bottom of the heat conduction plate 505; a heat dissipation drive shell 5016 is fixedly assembled on the outer wall of the female connector body 501; a micro drive motor 5017 is fixedly assembled in the inner cavity of the heat dissipation drive shell 5016; a cooling fan 5018 is fixedly assembled on the power output shaft of the micro drive motor 5017; a ventilation pipe 5019 is installed on the outer wall of the heat dissipation drive shell 5016; and a ventilation hole 5020 is opened on the inner wall of the heat dissipation drive shell 5016.
[0027] In the above structure, the heat generated when the female connector body 501 and male connector 2 are connected by a heat-conducting plate 505 on the inner wall of the female connector body 501 is conducted outward through the shape memory metal ring 506 and released onto the heat sink fin plate 5015. Then, the micro drive motor 5017 drives the cooling fan 5018. Under the action of the cooling fan 5018 rotating, the air circulation around the heat sink fin plate 5015 is accelerated, thereby further creating a temperature difference between the two ends of the heat sink fin plate 5015. This allows the heat in the inner cavity of the female connector body 501 and male connector 2 to be better guided to the heat sink fin plate 5015 through the heat-conducting plate 505, thereby dissipating the heat generated by the female connector body 501 and male connector 2 during operation, ensuring the stable operation of the equipment and preventing the contact position of the female connector body 501 and male connector 2 from becoming too hot.
[0028] In a preferred embodiment: the opening position of the snap-fit groove 502 corresponds to the installation position of the elastic snap-fit connector 3, the outer wall of the memory metal ring 506 contacts the inner wall of the mounting sleeve 504, and the connecting rod 507 passes through the outer wall of the female connector body 501 and the inner cavity of the movable groove 5014 and is connected to the clamping plate 508.
[0029] In the above structure, the snap-fit groove 502 opened on the outer wall of the female connector body 501 allows the elastic snap-fit connector 3 to enter the inner cavity of the snap-fit groove 502 when the female connector body 501 is pushed to mate with the male connector 2, thereby locking the female connector body 501 and the male connector 2. The memory metal ring 506 is restricted in the inner cavity of the female connector body 501 by the mounting sleeve 504 and the clamping plate 508. Only when the temperature of the female connector body 501 and the male connector 2 during mating exceeds the phase transition temperature of the memory metal ring 506 will it deform, thereby pushing the upper wedge block 5012 to press the lower wedge block 5013 downward, which in turn causes the clamping plate 508 to move into the inner cavity of the female connector body 501 to press the outer wall of the male connector 2, ensuring the stability of the mating between the female connector body 501 and the male connector 2, and further ensuring the stable transmission of the equipment circuit.
[0030] In a preferred embodiment, the two ends of the outer wall of the return spring 509 are in contact with the end of the connecting rod 507 and the outer wall of the female connector body 501, respectively, and the length of the return spring 509 when it is at rest and not under force is equal to the length of the connecting rod 507.
[0031] In the above structure, the return spring 509 provided on the outer wall of the connecting rod 507, when the shape memory metal ring 506 expands due to heat, exerts pressure on the lower wedge block 5013 and the clamping plate 508, causing the clamping plate 508 to move towards the inner cavity of the female connector body 501 and compress the return spring 509, causing the return spring 509 to undergo a certain compression deformation. This allows the clamping plate 508 to apply pressure to the outer wall of the male connector 2, thereby further locking the female connector body 501 and the male connector 2. After the operating temperature of the female connector body 501 and the male connector 2 drops, when the temperature drops below the phase transition temperature of the shape memory metal ring 506, the shape memory metal ring 506 will return to its initial state and stop applying pressure to the lower wedge block 5013. At this time, the return spring 509, which is still in a compressed state, will pull the clamping plate 508 upward, relieving the pressure and locking of the clamping plate 508 on the outer wall of the male connector 2.
[0032] In a preferred embodiment, the outer wall shape of the upper wedge 5012 near the lower wedge 5013 matches the outer wall shape of the lower wedge 5013 near the upper wedge 5012, and the phase transition temperature of the memory metal ring 506 is 60℃~120℃.
[0033] In the above structure, by setting an upper wedge 5012 and a lower wedge 5013, and the opposing surfaces of the upper wedge 5012 and the lower wedge 5013 are both in a beveled state, when the shape memory metal ring 506 expands to apply pressure to the upper wedge 5012, the upper wedge 5012 will squeeze the lower wedge 5013 downward, which increases the pressure applied by the lower wedge 5013 and the clamping plate 508 to the outer wall of the male connector 2, thereby increasing the connection pressure between the female connector body 501 and the male connector 2, making the connection between the female connector body 501 and the male connector 2 more stable. Moreover, when a small current is transmitted between the female connector body 501 and the male connector 2, the operating temperature is lower than the phase transition temperature of the shape memory metal ring 506. At this time, the shape memory metal ring 506 will not expand and deform, and will not apply downward pressure to the clamping plate 508.
[0034] In a preferred embodiment: the installation position of the heat dissipation drive housing 5016 corresponds to the installation position of the heat conduction plate 505, the inner cavity of the ventilation pipe 5019 is connected to the inner cavity of the heat dissipation drive housing 5016 through the ventilation hole 5020, and the inner cavity of the ventilation pipe 5019 is connected to the inner cavity of the guide channel 8.
[0035] In the above structure, by setting a start switch 5011 on the outer wall of the female connector body 501, after the working temperature of the female connector body 501 and the male connector 2 rises, the shape memory metal ring 506 will expand and drive the clamping plate 508, causing the clamping plate 508 to move into the inner cavity of the female connector body 501. During this process, the connecting rod 507 will move with the movement of the clamping plate 508, thereby triggering the start switch 5011 at the end of the connecting rod 507, which in turn starts the micro drive motor 5017. The micro drive motor 5017 drives the rotation of the cooling fan 5018, accelerates the air circulation on the outer wall of the heat dissipation fin plate 5015, and continuously dissipates and dissipates the heat generated by the female connector body 501 and the male connector 2 during operation, thus preventing the working temperature of the female connector body 501 and the male connector 2 from becoming too high.
[0036] In a preferred embodiment: the trigger plate 5010 and the start switch 5011 cooperate to trigger each other. The start switch 5011 is a heat dissipation switch and is electrically connected to the micro drive motor 5017.
[0037] In the above structure, the trigger plate 5010 and the start switch 5011 are triggered in conjunction. When the memory metal ring 506 is heated and pushes the pressing plate 508 and the connecting rod 507 to move, the start switch 5011 is triggered simultaneously, thereby controlling the micro drive motor 5017 to turn on and drive the cooling fan 5018 to rotate and dissipate heat. This achieves adaptive control that automatically starts heat dissipation when the temperature rises and automatically stops when the temperature drops, thereby improving the safety and stability of the high-voltage connection.
[0038] In a preferred embodiment: the inner cavity of the flow channel 8 is connected to the inner cavity of the heat conduction channel 10, the flow channel 8 is an air flow channel, and the heat conduction channel 10 is a heat conduction channel.
[0039] In the above structure, by setting the airflow channel 8 as an airflow channel and communicating with the heat conduction channel 10 and the inner cavity of the heat dissipation drive housing 5016, when the cooling fan 5018 blows air onto the outer wall of the heat dissipation fin plate 5015, the air can enter the inner cavity of the airflow channel 8 through the heat dissipation drive housing 5016. At the same time, the heat conduction channel 10 releases the cold air in the inner cavity of the airflow channel 8 to the outer wall of the cable 7, which assists in the heat dissipation of the cable 7 in the inner cavity of the wire harness body 6, and avoids the accumulation of heat in the cable 7 during operation, which would cause the operating temperature of the cable 7 to be too high.
[0040] Working principle: When in use, the female connector assembly 5 and the male connector 2 are mated together, so that the outer wall of the male connector 2 slides along the inner wall of the female connector body 501, and the elastic snap-fit connector 3 is squeezed and snaps into the inner cavity of the snap-fit groove 502. At the same time, the conductive terminal 503 enters the inner cavity of the elastic snap-fit connector 3, thus completing the mechanical locking and circuit connection between the male connector 2 and the female connector assembly 5, and realizing the high-voltage power transmission between the connector 1 and the wire harness body 6. During high current transmission, a large amount of heat is generated at the mating position of the male connector 2 and the female connector body 501. When the temperature rises above the phase transition temperature of the memory metal ring 506, the memory metal ring 506 expands and deforms, pushing the upper wedge block 5012 downward. The upper wedge block 5012 squeezes the lower wedge block 5013 through the oblique surface, driving the pressure plate 508 and the connecting rod 507 to move into the inner cavity of the female connector body 501. This causes the pressure plate 508 to press against the outer wall of the male connector 2, increasing the contact pressure between the male connector 2 and the female connector body 501, eliminating the gap caused by thermal cycling, and preventing loose contact, increased contact resistance, and fretting corrosion between the male connector 2 and the female connector body 501. At the same time, when the connecting rod 507 moves, it drives the trigger plate 5010 at the end to move synchronously, causing the trigger plate 5010 to trigger the start switch 5011. The start switch 5011 starts the micro drive motor 5017 to work. The micro drive motor 5017 drives the cooling fan 5018 to rotate at high speed, accelerating the air circulation around the heat dissipation fin plate 5015. The heat generated by the male connector 2 and the female connector body 501 is conducted to the heat dissipation fin plate 5015 through the heat conduction plate 505 and dissipated outward. The airflow enters the inner cavity of the guide channel 8 and the heat conduction channel 10 through the ventilation hole 5020 and the ventilation pipe 5019, directing the cold air to the outer wall of the cable 7 and releasing it outward through the heat dissipation cover 9, providing synchronous auxiliary heat dissipation for the cable 7 in the inner cavity of the wire harness body 6, and preventing the cable 7 from overheating and failing due to heat accumulation. When the current decreases and the temperature drops below the phase transition temperature of the memory metal ring 506, the memory metal ring 506 contracts and returns to its initial state, stopping the compression of the upper wedge block 5012 and the lower wedge block 5013. At this time, the return spring 509, which is in a compressed state, elastically resets, pulling the clamping plate 508 and the connecting rod 507 to move in opposite directions, releasing the clamping plate 508 from the outer wall of the male connector 2. The trigger plate 5010 resets with the connecting rod 507 and disengages from the start switch 5011. The micro drive motor 5017 stops driving, and the heat dissipation process ends, thus realizing the entire process of adaptive clamping, adaptive heat dissipation and automatic reset.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.
Claims
1. A wiring harness device for a high-voltage connector in a power battery pack, comprising a connector (1), characterized in that: The end of the connector (1) is fixedly fitted with a male connector (2), the outer wall of the male connector (2) is fixedly fitted with an elastic snap connector (3), the inner cavity of the male connector (2) is fixedly fitted with an inner conductive cylinder (4), the end of the connector (1) near the male connector (2) is provided with a female connector assembly (5), the end of the female connector assembly (5) away from the connector (1) is fixedly fitted with a wire harness body (6), the inner cavity of the wire harness body (6) is fitted with a cable (7), the inner cavity of the wire harness body (6) is provided with a flow channel (8), the inner wall of the flow channel (8) is provided with a heat conduction channel (10), and the outer wall of the wire harness body (6) is fixedly fitted with a heat sink (9).
2. The wiring harness device for a high-voltage connector in a power battery pack according to claim 1, characterized in that: The female connector assembly (5) includes a female connector body (501), the outer wall of the female connector body (501) is provided with a snap-fit groove (502), the inner wall of the female connector body (501) is fixedly fitted with a conductive terminal (503), the outer wall of the female connector body (501) is fixedly fitted with an mounting sleeve (504), and the outer wall of the female connector body (501) is fitted with a heat-conducting plate (505).
3. The wiring harness device for a high-voltage connector in a power battery pack according to claim 2, characterized in that: A memory metal ring (506) is embedded in the inner wall of the female connector body (501). A connecting rod (507) is movably sleeved on the outer wall of the female connector body (501). A reset spring (509) is movably sleeved on the outer wall of the connecting rod (507). A clamping plate (508) is fixedly mounted on the end of the connecting rod (507) near the female connector body (501). A trigger plate (5010) is fixedly mounted on the end of the connecting rod (507) away from the clamping plate (508). An upper wedge block (5012) is fixedly mounted on the side of the memory metal ring (506) near the clamping plate (508). A lower wedge block (5013) is fixedly mounted on the side of the clamping plate (508) near the memory metal ring (506). A movable groove (5014) is opened on the outer wall of the memory metal ring (506). A start switch (5011) is fixedly mounted on the outer wall of the female connector body (501).
4. The wiring harness device for a high-voltage connector in a power battery pack according to claim 3, characterized in that: The bottom of the heat-conducting plate (505) is equipped with a heat dissipation fin plate (5015). The outer wall of the female connector body (501) is fixedly fitted with a heat dissipation drive shell (5016). The inner cavity of the heat dissipation drive shell (5016) is fixedly fitted with a micro drive motor (5017). The power output shaft of the micro drive motor (5017) is fixedly fitted with a cooling fan (5018). The outer wall of the heat dissipation drive shell (5016) is fitted with a ventilation pipe (5019). The inner wall of the heat dissipation drive shell (5016) is provided with ventilation holes (5020).
5. The wiring harness device for a high-voltage connector in a power battery pack according to claim 4, characterized in that: The opening position of the snap-fit groove (502) corresponds to the installation position of the elastic snap-fit connector (3). The outer wall of the memory metal ring (506) is in contact with the inner wall of the mounting sleeve (504). The connecting rod (507) passes through the outer wall of the female connector body (501) and the inner cavity of the movable groove (5014) and is connected to the clamping plate (508).
6. The wiring harness device for a high-voltage connector in a power battery pack according to claim 5, characterized in that: The two ends of the outer wall of the reset spring (509) are in contact with the end of the connecting rod (507) and the outer wall of the female connector body (501), respectively, and the length of the reset spring (509) when it is at rest and not under force is equal to the length of the connecting rod (507).
7. The wiring harness device for a high-voltage connector in a power battery pack according to claim 6, characterized in that: The outer wall shape of the upper wedge block (5012) near the lower wedge block (5013) matches the outer wall shape of the lower wedge block (5013) near the upper wedge block (5012), and the phase transition temperature of the memory metal ring (506) is 60℃~120℃.
8. The wiring harness device for a high-voltage connector in a power battery pack according to claim 7, characterized in that: The installation position of the heat dissipation drive housing (5016) corresponds to the installation position of the heat conduction plate (505). The inner cavity of the ventilation pipe (5019) is connected to the inner cavity of the heat dissipation drive housing (5016) through the ventilation hole (5020), and the inner cavity of the ventilation pipe (5019) is connected to the inner cavity of the guide channel (8).
9. The wiring harness device for a high-voltage connector in a power battery pack according to claim 4, characterized in that: The trigger plate (5010) and the start switch (5011) cooperate to trigger each other. The start switch (5011) is a heat dissipation switch and is electrically connected to the micro drive motor (5017).
10. The wiring harness device for a high-voltage connector in a power battery pack according to claim 4, characterized in that: The inner cavity of the flow channel (8) is connected to the inner cavity of the heat conduction channel (10). The flow channel (8) is an air flow channel, and the heat conduction channel (10) is a heat conduction channel.