High-current connector female joint

Abstract

The utility model relates to the technical field of connectors, and discloses a high-current connector female joint, which comprises a female joint shell and a female joint pin, a silica gel waterproof ring B for improving the sealing performance of the contact part of the female joint shell and a battery panel is arranged on the female joint shell, and metal caps are pressed into mounting holes at four corners of the female joint shell; according to the utility model, the structure is simple, the fracture risk caused by repeated plugging is reduced, the metal cap provides a more stable screw fixing point, the screw is prevented from loosening, and the female contact pins comprise two female thick pins and eight female thin pins; a thick needle tube spring used for improving the insertion pre-tightening force of the male head thick needle and the female head thick needle is placed in an insertion groove A in the female head thick needle, a boss is arranged on the outer side face of the end, matched with the male head thick needle in an insertion mode, of the female head thick needle, and a gland matched with the boss in a clamping and pressing mode and used for firmly limiting the thick needle tube spring in the insertion groove A is arranged on the outer side face of the boss. And the thick needle tube spring provides better pre-tightening force and positioning, so that the connection stability is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and particularly relates to a female head of a high-current connector. Background Art

[0002] The combination of the female head and the male head on an electric vehicle connector is a common connection method for connecting important components or devices of the electric vehicle to a power source or a battery. The female head usually refers to the part with a fixed interface, while the male head is the component that can be inserted into the female head interface. This design enables the battery and other parts of the electric vehicle to be quickly and conveniently connected and disconnected.

[0003] The female head of the electric vehicle is installed on the battery panel to fix and protect the connection part of the battery. The design of the female head on the battery panel needs to consider durability, waterproofness, and dustproofness. At present, when the female head of the electric vehicle is installed on the battery panel, the contact between the female head and the battery panel is direct contact. Without additional sealing measures, it is difficult to ensure the waterproof and dustproof effects. When using the electric vehicle in an outdoor environment or in rainy conditions, moisture and dust may penetrate into the contact point between the female head and the battery panel, resulting in a short circuit or corrosion of the circuit and affecting the service life of the electric vehicle.

[0004] Small springs or buckles are designed in the holes of the female head corresponding to the male head pins to ensure that the pins can be correctly and firmly inserted. During use, due to the continuous insertion and extraction of the male head pins and the holes of the female head, the small springs or buckles only contact and fix at points or small areas. Therefore, without proper fixing and elastic design, the fit may become loose. This will not only affect the connection stability but may also cause poor contact and even electrical faults.

[0005] After installing M4 screws in the mounting holes at the four corners of the female head and screwing them to the battery panel, when using the M4 screws to fix the female head on the battery panel, if the design of the mounting holes at the four corners is improper, it may be easily broken when subjected to a certain force or vibration. This is usually because the design of the mounting holes does not consider sufficient strength and rigidity, or the material selection is improper. During the driving process of the electric vehicle, due to vibration and impact, the fixed screws may gradually become loose. This will not only affect the stability of the female head but may also cause safety hazards. Summary of the Utility Model

[0006] The present invention aims to solve the technical problems of poor durability, waterproofness, and dustproofness of the female head on the battery panel in the above-mentioned prior art.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A female head of a high-current connector, comprising:

[0009] The female housing is used to be installed on the battery panel, and is provided with a silicone waterproof ring B to improve the sealing performance of the contact with the battery panel. Metal caps are pressed into the mounting holes at the four corners of the female housing;

[0010] Female plug pins, the female plug pins include two female thick pins riveted on the female shell and matched with the two male thick pins for insertion, and eight female thin pins matched with the eight male thin pins for insertion;

[0011] The female thick needle is provided with a plug-in slot A for cooperating with the male thick needle, and a thick needle tube spring for increasing the pre-tightening force of the male and female thick needles is placed in the plug-in slot A. A boss is provided on the outer side surface of one end of the female thick needle that cooperates with the male thick needle, and the outer side surface of the boss is provided with a pressure cover that cooperates with the thick needle and presses it to firmly confine the thick needle tube spring in the plug-in slot A.

[0012] Preferably, one end of the female shell has a plug-in slot B for mating with the male head of the high-current connector, and the other end has a plug-in slot C. The two ends of the two female thick pins and the eight female thin pins extend into the plug-in slot B and the plug-in slot C respectively. The plug-in slot B has two thick pin sheaths that are sleeved on the outer side of the female thick pins and a thin pin sheath that is sleeved on the outer side of the eight female thin pins. The plug-in slot C has a T-shaped partition plate that separates the two female thick pins and the eight female thin pins from each other.

[0013] The design of the plug slot A and the plug slot B ensures sufficient stability and contact pressure when large current is transmitted, thereby improving the reliability of the electrical connection.

[0014] Preferably, the front side of the female connector housing has a positive identification slot and a negative identification slot for reminding the positive and negative poles, respectively, and the silicone waterproof ring B is located on the side away from the positive identification slot and the negative identification slot. The design of the positive and negative identification slots helps users quickly and correctly identify the positive and negative poles of the battery, reducing the risk of wrong insertion.

[0015] Preferably, the waist of the thick needle tube spring is designed with an inward-closed opening and the thick needle tube spring is formed by stamping beryllium copper; the thick needle tube spring uses its own elasticity to contact the inward-closed opening of the waist of the thick needle tube spring and tighten the female thick needle inside the thick needle tube spring when the male thick needle and the female thick needle are inserted into the thick needle tube spring.

[0016] Preferably, the female housing is made of PPT material by injection molding. The female housing made of PPT material by injection molding has good strength, hardness, electrical insulation performance and resistance to environmental factors, ensuring the stable performance of the connector in various environments.

[0017] Preferably, one end of the female fine needle and the male fine needle for mating and inserting is provided with a closing portion, and a fine needle tube spring is provided on the inner side of the female fine needle, and the closing portion is used to position the fine needle tube spring in the female fine needle.

[0018] Preferably, the female head housing is provided with a clamping position that cooperates with and is clamped to the buckle on the male head of the high-current connector.

[0019] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0020] By providing a silicone waterproof ring B and a special buckle and clamping position design on the female head housing of the high-current connector, moisture and dust intrusion can be effectively prevented, improving the waterproof and dustproof performance of the connector, especially in outdoor or rainy environments.

[0021] The tube spring and gland design on the thick and thin female head pins provide better pre-tightening force and positioning, reducing connection looseness caused by vibration or impact, thus ensuring connection stability. Key components are made of stainless steel and beryllium copper materials, improving the corrosion resistance and wear resistance of the connector and extending its service life. The design of the thick and thin pin tube springs reduces the frictional resistance during insertion and extraction, making the operation smoother.

[0022] By setting metal cap covers at the four corners of the female head housing, the risk of breakage caused by repeated plugging and unplugging is reduced, and at the same time, the metal cap covers provide more stable screw fixing points, preventing screw loosening.

[0023] Generally speaking, the design of the female head of the high-current connector ensures connection reliability, stability and durability, while also considering waterproof and dustproof performance, user safety and operation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the male head of the high-current connector of the present utility model from the first perspective;

[0025] Figure 2 It is a schematic structural diagram of the male head of the high-current connector of the present utility model from the second perspective;

[0026] Figure 3 It is a schematic structural diagram of the male head of the high-current connector of the present utility model from the third perspective;

[0027] Figure 4 It is a schematic structural diagram of the male head of the high-current connector of the present utility model after removing the buckle, pin and spring;

[0028] Figure 5 It is a schematic structural diagram of the thick pin of the male head of the present utility model;

[0029] Figure 6 It is the first exploded view of the thick pin of the male head of the present utility model;

[0030] Figure 7 It is the second exploded view of the thick pin of the male head of the present utility model;

[0031] Figure 8 This is a schematic structural diagram of the high current connector female head of the utility model from the first perspective;

[0032] Figure 9 This is a structural schematic diagram of the high current connector female head of the utility model from a second viewing angle;

[0033] Figure 10 This is a schematic structural diagram of the female head housing of the utility model from the first perspective;

[0034] Figure 11 This is a schematic structural diagram of the female head housing of the utility model from a second viewing angle;

[0035] Figure 12 This is a schematic diagram of the structure of the thick female needle of the utility model;

[0036] Figure 13 This is an exploded view of the thick female needle of the utility model;

[0037] Figure 14 This is a schematic diagram of the structure of the female fine needle of the utility model;

[0038] Figure 15 This is a schematic diagram of the structure of the fine needle tube spring of the utility model;

[0039] Figure 16 It is a structural schematic diagram of the metal cap of the utility model.

[0040] In the figure: 100, male connector of high current; 11, male connector shell; 101, silicone waterproof ring A; 102, insertion slot A; 103, waist-shaped insertion slot; 104, insertion slot B; 105, convex block; 106, outer sheath; 107, spacer; 108, L-shaped support; 109, connecting strip; 110, limit block; 111, limit slot; 12, male thick pin; 121, step; 122, plastic insulating part; 13, male thin pin; 14, buckle; 1401, anti-slip convex strip; 1402, buckle strip; 15, pin; 16, spring;

[0041] 200, high current connector female; 21, female connector housing; 2101, silicone waterproof ring B; 2102, mounting hole; 2103, metal cap; 2104, plug slot B; 2105, plug slot C; 2106, thick needle sheath; 2107, fine needle sheath; 2108, T-type separator; 2109, positive pole identification slot; 2110, negative pole identification slot; 2111, latching position; 22, female thick needle; 2201, plug slot A; 2202, thick needle tube spring; 2203, boss; 2204, pressure cover; 23, female fine needle; 2301, closing part; 2302, fine needle tube spring. DETAILED DESCRIPTION

[0042] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0043] The following will further describe the present application in detail Figures 1-16 in conjunction with the attached drawings.

[0044] As Figures 8-16 shown, an embodiment of the present application discloses a female head 200 of a high-current connector for connecting with a male head 100 of a high-current connector, for example, for connecting with Figure 1 the male head 100 of the high-current connector shown;

[0045] The female head 200 of the high-current connector is used to be installed on the battery panel. The female head 200 of the high-current connector includes a female head housing 21, two female thick pins 22 riveted on the female head housing 21 and mating with two male thick pins 12 for insertion, and eight female thin pins 23 mating with eight male thin pins 13 for insertion; corresponding jacks are provided on the female thick pins 22 and the female thin pins 23, which can exactly match the male thick pins 12 and the male thin pins 13, so that the male pin feet can be correctly inserted and form a stable connection; the combination of the female thick pins 22 and the female thin pins 23 can match the male thick pins 12 and the male thin pins 13, ensuring correct plugging and unplugging and alignment, so as to form a stable and reliable electrical connection and reduce problems caused by poor contact.

[0046] Specifically, a clamping position 2111 is provided on the female head housing 21 for mating and clamping with a buckle 14 on the male head 100 of the high-current connector.

[0047] With such a setting, the design of the buckle 14 and the clamping position 2111 enables the female head and the male head to achieve a closer fit when connected, effectively preventing the connection from loosening due to vibration or impact, thereby enhancing the stability of the connection. The buckle 14 and the clamping position 2111 can achieve quick plugging and unplugging while ensuring the connection stability, improving the use efficiency and facilitating the operation of the user.

[0048] Specifically, mounting holes 2102 are provided at the four corners of the female head housing 21, and metal cap covers 2103 are pressed into the mounting holes 2102. The metal cap covers 2103 are made by stainless steel stretching.

[0049] It can be understood that the setting of the four corner mounting holes 2102 of the female shell 21 makes the thickness of the four corner mounting holes 2102 on the female shell 21 thinner. When the high current connector male head 100 and the high current connector female head 200 are repeatedly plugged into each other, the four corner mounting holes 2102 on the female shell 21 are prone to breakage. In addition, during the driving of the electric vehicle, the screws installed in the mounting holes 2102 on the female shell 21 will loosen due to the driving vibration of the electric vehicle. The metal cap 2103 is installed in the mounting hole 2102, so that when the high current connector male head 100 and the high current connector female head 200 are repeatedly plugged into each other, the four corner mounting holes 2102 on the female shell 21 are not easy to break. After the M4 screws fixing the female shell 21 are installed in the metal cap 2103, they are not easy to loosen.

[0050] With this arrangement, the stainless steel material of the metal cap 2103 provides higher strength and corrosion resistance, and enhances the overall durability of the connector. The presence of the metal cap 2103 reduces the stress concentration of the female housing 21 during repeated plugging and unplugging, and reduces the risk of breakage. The metal cap 2103 provides a more stable screw fixing point, effectively preventing the screw from loosening during the driving of the electric vehicle, and ensuring the stability of the connector.

[0051] Specifically, one end of the female connector housing 21 has a plugging slot B2104 for mating with the high-current connector male connector 100, and the other end has a plugging slot C2105. Two ends of the two female thick pins 22 and eight female thin pins 23 extend into the plugging slot B2104 and the plugging slot C2105 respectively. The plugging slot B2104 has two thick pin sheaths 2106 sleeved on the outer side of the female thick pins 22 and a thin pin sheath 2107 sleeved on the outer side of the eight female thin pins 23. The plugging slot C2105 has a T-shaped partition plate 2108 for separating the two female thick pins 22 and the eight female thin pins 23 from each other.

[0052] In this way, the design of the plug slot B2104 and the plug slot C2105 allows the female thick pin 22 and the female thin pin 23 to be inserted respectively, and maintain sufficient stability and contact pressure when transmitting large current. The thick pin sheath 2106 in the plug slot B2104 and the T-shaped partition plate 2108 in the plug slot C2105 help to keep the pins in place and prevent pin displacement due to vibration or other factors during use.

[0053] Specifically, the front sides of the female connector housing 21 are provided with a positive pole identification groove 2109 and a negative pole identification groove 2110 for reminding the positive and negative poles respectively; the back side of the female connector housing 21 and the side away from the positive pole identification groove 2109 and the negative pole identification groove 2110 is provided with a silicone waterproof ring B2101;

[0054] With such a setting, the design of the positive and negative pole identification slots 2110 helps users quickly identify the positive and negative poles of the battery, avoiding the risks caused by incorrect insertion, which enhances the safety during use; the silicone waterproof ring B2101 plays a role in waterproofing and moisture-proofing, improving the sealing performance at the contact between the female head housing 21 and the battery panel, protecting the connector from the intrusion of moisture and dust, and enhancing the weather resistance and reliability of the connector, especially when used outdoors or in a humid environment.

[0055] Specifically, as Figures 12-13 shown, the female thick pin 22 is provided with a plugging slot A2201 that cooperates with the male thick pin 12 for plugging. A thick pin tube spring 2202 for increasing the pre-tightening force of the male thick pin 12 and the female thick pin 22 during mating plugging is placed in the plugging slot A2201. The outer side surface of one end of the female thick pin 22 that cooperates with the male thick pin 12 for plugging is provided with a boss 2203, and the outer side surface of the boss 2203 is provided with a gland 2204 that cooperates with it for clamping and pressing and firmly confines the thick pin tube spring 2202 in the plugging slot A2201, preventing the thick pin tube spring 2202 from falling out of the plugging slot A2201;

[0056] With such a setting, the thick pin tube spring 2202 placed in the plugging slot A2201 is used to increase the pre-tightening force of the male thick pin 12 and the female thick pin 22 during mating plugging, which helps to ensure the firmness of the connection. The gland 2204 of the thick pin tube spring 2202 is designed to firmly confine the thick pin tube spring 2202 in the plugging slot A2201 to prevent it from falling off, thus enhancing the stability and reliability of the connection;

[0057] The outer side surface of one end of the female thick pin 22 that cooperates with the male thick pin 12 for plugging is provided with a boss 2203, and the outer side surface of the boss 2203 is provided with a gland 2204 that cooperates with it for clamping and pressing. This design helps to provide additional grip during the plugging and unplugging process, ensuring a tight connection between the male and female heads, and at the same time preventing the connection from loosening due to vibration or impact during use.

[0058] The elastic strips evenly distributed around the thick pin tube spring 2202 are inclined, which helps to provide a uniform force distribution when the male and female heads are plugged and unplugged, thereby reducing the frictional resistance during insertion and extraction and making the operation smoother.

[0059] The waist of the thick needle tube spring 2202 is designed with an inner opening, and the thick needle tube spring 2202 is stamped by beryllium copper; beryllium copper alloy is selected for its good conductivity and wear resistance, which helps to improve the electrical performance and durability of the connector. The thick needle tube spring 2202 uses its own elasticity to contact and tighten the female thick needle 22 in the waist of the thick needle tube spring 2202 when the male thick needle 12 and the female thick needle 22 are inserted. To ensure that the male pin can be correctly and firmly inserted into the female pin, and to protect the male pin from damage during the plugging and unplugging process. The waist of the thick needle tube spring 2202 is designed with an inner opening, which helps to contact and tighten the female thick needle 22 in the thick needle tube spring 2202 when the male pin is inserted, thereby providing a more stable connection. The inner opening is a circle of contact positioning around the male thick needle 12, which has better stability compared to traditional point or small area contact fixation.

[0060] Specifically, the female connector housing 21 is made of PPT material by injection molding. PPT (polymethyl acrylate) material has high strength and hardness, can withstand certain mechanical stress and impact, and protect internal components from damage. PPT material has excellent electrical insulation performance, can prevent current leakage, and ensure the electrical safety of the connector. PPT material has strong resistance to environmental factors such as temperature and humidity, and its performance will not be significantly affected by climate change.

[0061] Specifically, Figures 14-15 As shown, one end of the female fine needle 23 that cooperates with the male fine needle 13 is provided with a closing portion 2301, and a fine needle tube spring 2302 is provided on the inner side of the female fine needle 23, and the closing portion 2301 is used to position the fine needle tube spring 2302 in the female fine needle 23; the fine needle tube spring 2302 provides a stable pressure to ensure good contact between the female fine needle 23 and the male fine needle 13, thereby improving the reliability of the connection. The design of the closing portion 2301 helps to reduce the entry of dust and debris into the fine needle tube spring 2302, thereby protecting the cleanliness of the inside of the connector and being able to limit the fine needle tube spring 2302, thereby confining the fine needle tube spring 2302 in the female fine needle 23.

[0062] like Figures 1-7 As shown, the embodiment of the present application also discloses a high current connector male head 100, which is used to connect with a high current connector female head 200, for example, Figure 8 The high current connector female head 200 shown is connected;

[0063] The high-current connector male connector 100 includes a male connector housing 11, two male connector thick pins 12 riveted on the male connector housing 11 and used for passing high current, and eight male connector thin pins 13 used for passing signals. This design allows for simultaneous transmission of high current and signals, and is very suitable for devices such as electric vehicles that need to handle high power and communication at the same time.

[0064] The diameter of the two male thick pins 12 is 9.0 mm. Compared with the male thick pins 12 with a diameter of 8.0 mm, the larger-diameter pins will have a larger contact area, which helps to disperse the current during the welding process, reduce the wear of the contact points, and thus can withstand a larger current without causing the pins to overheat. As Figures 5-7 shown, one end of the male thick pin 12 is provided with a step 121, and a plastic insulating part 122 integrated with the male thick pin 12 is injection-molded on the outer side of the step 121; this helps to improve the insulation performance, reduce the risk of electric shock, and provide additional protection to prevent damage to the thick pins when inserted and removed;

[0065] As Figures 1-4 shown, the front end of the male housing 11 has two insertion slots A102 for the two male thick pins 12 to extend into and be hermetically inserted and connected with the thick pin sheaths 2106 on the female head 200 of the high-current connector, and a waist-shaped insertion slot 103 for the eight male thin pins 13 to extend into and be hermetically inserted and connected with the thin pin sheaths 2107 on the female head 200 of the high-current connector. The rear end of the male housing 11 has an insertion slot B104 for the two male thick pins 12 and the eight male thin pins 13 to extend into. Inside the insertion slot B104, there are bumps 105 sleeved on the outer sides of the eight male thin pins 13 and an outer sheath 106 sleeved on the outer sides of the two male thick pins 12. Inside the insertion slot B104, there is a partition strip 107 that separates the two outer sheaths 106 and is connected to the bottom of the bump 105. The end of the male thick pin 12 with the plastic insulating part 122 extends into the insertion slot A102.

[0066] The front end of the male housing 11 has two insertion slots A102 and a waist-shaped insertion slot 103 to be hermetically inserted and connected with the thick pin sheaths 2106 and the thin pin sheaths 2107 on the female head 200 of the high-current connector. This design helps to achieve better plugging and unplugging stability and sealing performance, preventing moisture and dust from entering the inside of the connector.

[0067] Inside the insertion slot B104, there is a partition strip 107 that separates the two outer sheaths 106 and is connected to the bottom of the bump 105. This helps to maintain the isolation between the thick pin sheaths 2106 and prevent them from interfering with or colliding with each other when inserted and removed.

[0068] The male housing 11 is injection-molded from PPT material. The PPT material has excellent mechanical properties, heat resistance, and electrical insulation, and can provide a long service life and reliable performance.

[0069] Specifically, as Figures 1-4As shown in the figure, at the top of the male housing 11, there are two L-shaped supports 108 connected by a connecting bar 109, a limiting block 110 provided inside the two L-shaped supports 108, and a buckle 14 for cooperating with the female head 200 of the high-current connector to be buckled. Between the two L-shaped supports 108, there is a pin 15 connected to the buckle 14. A spring 16 is sleeved on the outer side of the pin 15 and is located between the L-shaped support 108 and the buckle 14. A limiting groove 111 is reserved between the limiting block 110 and the connecting bar 109 for one end of the spring 16 to be snapped in for limiting.

[0070] One end of the buckle 14 is provided with an anti-slip convex strip 1401 for cooperating with hand pressing, and the other end is provided with a buckle strip 1402 for cooperating with the clamping position 2111 on the female head 200 of the high-current connector to be buckled. The buckle 14 helps to provide a stable connection and prevent the connector from accidentally falling off during the plugging and unplugging process. The design of the pin 15 and the spring 16 helps to provide additional stability and elasticity, enabling the buckle 14 to be buckled more tightly with the female head 200 of the high-current connector. The design of the anti-slip convex strip 1401 and the buckle strip 1402 helps to improve the user experience, making the plugging and unplugging more convenient, and at the same time ensuring the stability and reliability of the connection.

[0071] The pin 15 is made of aluminum alloy material, and the spring 16 is made of spring steel material. These materials have excellent mechanical properties and corrosion resistance, and can provide a long service life and reliable performance.

[0072] A silicone waterproof ring A101 is sleeved on the outer side of the male housing 11 for cooperating with the side of the female head 200 of the high-current connector to prevent water. This helps to improve the waterproof performance, prevent water from penetrating into the connector, and protect the circuit from the influence of a humid environment.

[0073] Generally speaking, this design of the male head 100 of the high-current connector helps to improve the safety, reliability and user experience of the electric vehicle. At the same time, by using appropriate materials and a carefully designed structure, it can be ensured that the connector can maintain stable performance under various environments and usage conditions.

[0074] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high current connector female head, characterized in that: include: A female housing (21), the female housing (21) being used for being mounted on a battery panel, and provided with a silicone waterproof ring B (2101) for improving the sealing performance of the contact portion with the battery panel, and metal caps (2103) being pressed into the mounting holes (2102) at the four corners of the female housing (21); Female plug pins, the female plug pins comprising two female thick pins (22) riveted onto the female shell (21) and matingly plugged with the two male thick pins, and eight female thin pins (23) matingly plugging with the eight male thin pins; The female thick needle (22) is provided with a plugging slot A (2201) for mating with the male thick needle, and a thick needle tube spring (2202) for increasing the pre-tightening force of the male thick needle and the female thick needle (22) is placed in the plugging slot A (2201). The outer side surface of one end of the female thick needle (22) mating with the male thick needle is provided with a boss (2203), and the outer side surface of the boss (2203) is provided with a pressure cover (2204) that is matingly engaged and pressed therewith and firmly confines the thick needle tube spring (2202) in the plugging slot A (2201).

2. The high current connector female head according to claim 1, characterized in that: One end of the female housing (21) has a plugging slot B (2104) for mating with a male connector of a high-current connector, and the other end has a plugging slot C (2105). Two ends of the two female thick pins (22) and the eight female thin pins (23) extend into the plugging slot B (2104) and the plugging slot C (2105) respectively. The plugging slot B (2104) has two thick pin sheaths (2106) sleeved on the outer sides of the female thick pins (22) and a thin pin sheath (2107) sleeved on the outer sides of the eight female thin pins (23). The plugging slot C (2105) has a T-shaped partition plate (2108) for separating the two female thick pins (22) and the eight female thin pins (23) from each other.

3. The high current connector female head according to claim 1, characterized in that: The front side of the female connector housing (21) is provided with a positive pole identification groove (2109) and a negative pole identification groove (2110) for reminding the positive and negative poles, respectively, and the silicone waterproof ring B (2101) is located on a side away from the positive pole identification groove (2109) and the negative pole identification groove (2110).

4. The high current connector female head according to claim 1, characterized in that: The waist of the thick needle tube spring (2202) is designed to be inwardly contracted and the thick needle tube spring (2202) is formed by stamping beryllium copper; when the male thick needle and the female thick needle (22) are inserted into each other, the inwardly contracted waist of the thick needle tube spring (2202) contacts and tightens the female thick needle (22) inside the thick needle tube spring (2202) due to its own elasticity.

5. The high current connector female head according to claim 1, characterized in that: The female housing (21) is made of PPT material by injection molding.

6. The high current connector female head according to claim 1, characterized in that: One end of the female fine needle (23) that is mated with the male fine needle is provided with a closing portion (2301), and a fine needle tube spring (2302) is provided on the inner side of the female fine needle (23), and the closing portion (2301) is used to position the fine needle tube spring (2302) inside the female fine needle (23).

7. The high current connector female head according to claim 1, characterized in that: The female head housing (21) is provided with a latching position (2111) that is matched and latched with a latch on the male head of the high current connector.

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