Floating type high-power connector

Abstract

The utility model relates to the technical field of connectors, in particular to a floating type high-power connector, which comprises a plastic shell, an NTC (Negative Temperature Coefficient) thermistor and a contact assembly, a rubber core is arranged in the plastic shell, a metal plate is arranged in the rubber core, the NTC thermistor is arranged on the metal plate, long terminals are adhered to the upper end and the lower end of the metal plate, and the contact assembly is arranged on the metal plate. A short terminal is attached to the other end of the long terminal, the long terminal and the short terminal are arranged in a staggered mode, and a third sealing ring is arranged on the metal plate through an annular groove. When the device is used and the battery pack is pushed to the busbar, the connector is contacted with the busbar, the head of the connector is contacted with the busbar firstly, the contact component of the connector can float, and the position of the contact component can be automatically adjusted according to the position of the busbar, so that the position deviation between the connector and the busbar can be absorbed; therefore, the connector is safely inserted into the busbar, stable contact between the busbar and the connector terminal is ensured, and the connector is provided with the position detection terminal to identify the insertion depth of the copper bar.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically a floating high-power connector. Background Technology

[0002] Currently, battery cells and busbars in energy storage cabinets are connected via connectors. Due to manufacturing and assembly tolerances, there is inevitably a positional deviation between the connector and the busbar. When a battery cell (PACK) is inserted into the busbar, the connector plastic may come into direct contact with the busbar due to this positional deviation, causing damage to the connector. Even after insertion, the positional deviation may cause excessive contact on one side of the connector terminal, leading to terminal yielding, while the other side may have unstable contact. In extreme cases, there may even be one-sided contact. To achieve ease of assembly, more and more customers are seeking a method where the battery pack can be blindly inserted into the busbar (the connector is mounted on the battery pack, which is placed in a coarsely positioned track and pushed forward to achieve stable contact between the connector and the busbar, thus enabling charging / discharging). Therefore, this invention provides a floating high-power connector to solve the aforementioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a floating high-power connector to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A floating high-power connector includes a plastic housing, an NTC thermistor, and a contact assembly. The plastic housing contains a core, and the core contains a metal plate. The metal plate has an NTC thermistor mounted on it. Long terminals are attached to both the upper and lower ends of the metal plate, and short terminals are attached to the other ends of the long terminals. The long and short terminals are staggered. A third sealing ring is provided on the metal plate through an annular groove. The left end of the plastic housing has a mounting groove, and the contact assembly is mounted in the mounting groove.

[0006] As a further embodiment of this utility model, nuts are symmetrically arranged on the front and back of the metal plate, and the nuts are provided with threaded holes. The combination of the nuts and threaded holes facilitates the fixing of the metal plate to the copper busbar in the battery unit.

[0007] As a further embodiment of this utility model, the metal plate is provided with a number of rivets corresponding to the long and short terminals, and the metal plate, the long terminals, and the short terminals are provided with a number of rivet holes corresponding to the rivets. By designing the contact arms of the long and short terminals to be spaced a certain distance apart and staggered from each other, the long and short terminals are made elastic and can swing within a certain range after being subjected to force. Through the coordinated use of the long and short terminal structures, the gap between the upper terminal and the lower terminal can save space and thus improve the current carrying capacity.

[0008] As a further embodiment of this utility model, the plastic shell is fixedly connected to the equipment housing by screws, and a second sealing ring is provided at one end of the plastic shell near the equipment housing. By installing the second sealing ring on the plastic shell, when the product is installed into the equipment housing, the second sealing ring is compressed, forming a waterproof barrier at the installation interface to prevent liquid from entering the battery unit and avoid short circuit.

[0009] As a further embodiment of this utility model, the contact assembly includes a piston, a spring, a first sealing ring, a male terminal, and a female terminal. The piston is slidably connected in the mounting groove, and springs are symmetrically arranged in the upper and lower parts of the mounting groove. One end of the spring is fixedly connected to the piston, and the other end of the spring is fixedly connected to the inner wall of the mounting groove. The piston is fitted with a first sealing ring. A male terminal is provided at the right end of the piston, and a female terminal is provided to the right of the male terminal. When the battery pack is pushed to the busbar, the connector contacts the busbar. The connector head will contact the busbar first, and the contact assembly will float according to the direction of the force to absorb the positional deviation, thereby achieving reliable contact between the long terminal and the short terminal and the busbar. When the busbar reaches the predetermined position, the male terminal and the female terminal are connected, the signal circuit is connected, and the system starts to power on.

[0010] As a further embodiment of this utility model, arched stainless steel parts are provided at both the upper and lower ends of the core. The arched stainless steel parts abut against the inner wall of the plastic shell. By assembling the arched stainless steel parts at both the upper and lower ends of the core, it is easy to keep the core in a central position.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When this utility model is used, when the battery pack is pushed to the busbar, the connector contacts the busbar. The connector head will contact the busbar first. The contact component of the connector is floating and can automatically adjust the position of the contact component according to the position of the busbar. This can absorb the positional deviation between the connector and the busbar, so that the connector can be safely inserted into the busbar and ensure stable contact between the busbar and the connector terminal. The connector has a position detection terminal to identify the insertion depth of the copper busbar.

[0013] 2. When this utility model is used, the NTC thermistor facilitates real-time monitoring of the connector temperature, and the structure of the first sealing ring, second sealing ring and third sealing ring facilitates the formation of a waterproof barrier to prevent liquid from entering the mounting groove and battery unit, thus avoiding short circuits. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of a floating high-power connector.

[0015] Fig. 2 This is a schematic diagram of the structure of the second sealing ring in a floating high-power connector.

[0016] Fig. 3 This is a schematic diagram of the arched stainless steel component in a floating high-power connector.

[0017] Fig. 4 This is a schematic diagram of the structure of a long terminal in a floating high-power connector.

[0018] Fig. 5 This is a schematic diagram of the contact component in a floating high-power connector.

[0019] In the diagram: 1. Plastic housing; 101. Mounting slot; 2. Equipment enclosure; 3. Screw; 4. Metal plate; 401. Nut; 402. Threaded hole; 403. Rivet hole; 5. NTC thermistor; 6. Glue core; 7. Contact assembly; 701. Piston; 702. Spring; 703. First sealing ring; 704. Male terminal; 705. Female terminal; 8. Second sealing ring; 9. Arched stainless steel part; 10. Long terminal; 11. Short terminal; 12. Rivet; 13. Third sealing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] In this invention, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this invention is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use this invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of this invention with unnecessary detail. Therefore, this invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed herein.

[0022] Example

[0023] Please see Figs. 1-5 In this embodiment of the present invention, a floating high-power connector includes a plastic housing 1, an NTC thermistor 5, and a contact assembly 7. The plastic housing 1 contains a core 6, and the core 6 contains a metal plate 4. The metal plate 4 has an NTC thermistor 5. Long terminals 10 are attached to both the upper and lower ends of the metal plate 4, and short terminals 11 are attached to the other end of the long terminals 10. The long terminals 10 and short terminals 11 are staggered. A third sealing ring 13 is provided on the metal plate 4 through an annular groove. The left end of the plastic housing 1 has a mounting groove 101, and the contact assembly 7 is provided in the mounting groove 101.

[0024] Both ends of the core 6 are provided with arched stainless steel parts 9, which abut against the inner wall of the plastic shell 1.

[0025] Specifically, by assembling arched stainless steel parts 9 at the upper and lower ends of the rubber core 6, it is easy to keep the rubber core 6 in a central position.

[0026] Nuts 401 are symmetrically arranged on the front and back of the metal plate 4, and threaded holes 402 are provided on the nuts 401.

[0027] Specifically, the combination of the nut 401 and the threaded hole 402 facilitates the fixing of the metal plate 4 to the copper busbar inside the battery unit.

[0028] The metal plate 4 is provided with a number of rivets 12 corresponding to the long terminal 10 and the short terminal 11, and the metal plate 4, the long terminal 10 and the short terminal 11 are provided with a number of rivet holes 403 corresponding to the rivets 12.

[0029] Specifically, by designing the contact arms of the long terminal 10 and the short terminal 11 to be spaced a certain distance apart and staggered, the long terminal 10 and the short terminal 11 are made elastic and can swing within a certain range after being subjected to force. Through the coordinated use of the structure of the long terminal 10 and the short terminal 11, the gap between the upper terminal and the lower terminal can save space, thereby improving the current carrying capacity.

[0030] The plastic housing 1 is fixedly connected to the equipment box 2 by screws 3, and a second sealing ring 8 is provided at one end of the plastic housing 1 near the equipment box 2.

[0031] Specifically, by installing the second sealing ring 8 on the plastic housing 1, when the product is installed into the equipment box 2, the second sealing ring 8 is compressed, forming a waterproof barrier at the installation interface to prevent liquid from entering the battery cell and avoid short circuit.

[0032] The contact assembly 7 includes a piston 701, a spring 702, a first sealing ring 703, a male terminal 704, and a female terminal 705. The piston 701 is slidably connected in the mounting groove 101. The springs 702 are symmetrically arranged vertically in the mounting groove 101. One end of the spring 702 is fixedly connected to the piston 701, and the other end of the spring 702 is fixedly connected to the inner wall of the mounting groove 101. The piston 701 is fitted with the first sealing ring 703. The right end of the piston 701 is provided with a male terminal 704, and the right side of the male terminal 704 is provided with a female terminal 705.

[0033] Specifically, when the battery pack is pushed onto the busbar, the connector contacts the busbar. The connector head contacts the busbar first, and the contact component 7 will float with the direction of the force to absorb the position deviation, thereby achieving reliable contact between the long terminal 10 and the short terminal 11 and the busbar. When the busbar reaches the predetermined position, the male terminal 704 and the female terminal 705 are connected, the signal circuit is connected, and the system starts to power on.

[0034] The working principle of this utility model is as follows:

[0035] When this invention is in use, as the battery pack is pushed onto the busbar, the connector contacts the busbar. The connector head contacts the busbar first. The contact component 7 of the connector is floating and can automatically adjust its position according to the position of the busbar. This absorbs the positional deviation between the connector and the busbar, ensuring the connector is safely inserted into the busbar and maintaining stable contact between the busbar and the connector terminals. The connector has position detection terminals to identify the insertion depth of the copper busbar. At the same time, the NTC thermistor 5 facilitates real-time monitoring of the connector temperature. The structure of the first sealing ring 703, the second sealing ring 8, and the third sealing ring 13 facilitates the formation of a waterproof barrier to prevent liquid from entering the mounting groove 101 and the battery cell, thus avoiding short circuits.

[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 floating high-power connector, comprising a plastic housing (1), an NTC thermistor (5), and a contact assembly (7), characterized in that, The plastic housing (1) is provided with a core (6), and a metal plate (4) is provided inside the core (6). An NTC thermistor (5) is provided on the metal plate (4). Long terminals (10) are attached to both the upper and lower ends of the metal plate (4), and short terminals (11) are attached to the other end of the long terminals (10). The long terminals (10) and short terminals (11) are staggered. A third sealing ring (13) is provided on the metal plate (4) through an annular groove. An installation groove (101) is provided on the left end of the plastic housing (1), and a contact component (7) is provided in the installation groove (101).

2. The floating high-power connector according to claim 1, characterized in that, The contact assembly (7) includes a piston (701), a spring (702), a first sealing ring (703), a male terminal (704), and a female terminal (705). The piston (701) is slidably connected in the mounting groove (101). The springs (702) are symmetrically arranged in the mounting groove (101). One end of the spring (702) is fixedly connected to the piston (701), and the other end of the spring (702) is fixedly connected to the inner wall of the mounting groove (101). The piston (701) is fitted with a first sealing ring (703). The right end of the piston (701) is provided with a male terminal (704), and the right side of the male terminal (704) is provided with a female terminal (705).

3. A floating high-power connector according to claim 1, characterized in that, The metal plate (4) is provided with a number of rivets (12) corresponding to the long terminal (10) and the short terminal (11), and the metal plate (4), the long terminal (10) and the short terminal (11) are provided with a number of rivet holes (403) corresponding to the rivets (12).

4. A floating high-power connector according to claim 1, characterized in that, The plastic housing (1) is fixedly connected to the equipment box (2) by screws (3), and a second sealing ring (8) is provided at one end of the plastic housing (1) near the equipment box (2).

5. A floating high-power connector according to claim 1, characterized in that, The core (6) is provided with arched stainless steel parts (9) at both the upper and lower ends, and the arched stainless steel parts (9) abut against the inner wall of the plastic shell (1).

6. A floating high-power connector according to claim 1, characterized in that, Nuts (401) are symmetrically arranged on the front and back of the metal plate (4), and threaded holes (402) are provided on the nuts (401).

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