A soft connection structure between battery packs

Abstract

The utility model relates to photovoltaic power generation technical field, concretely is a kind of soft connection structure between battery pack, including positive plug shell, the upper end of plug shell is fixedly inserted and has connecting piece, the lower end of plug shell is fixedly inserted and has connector, copper wire is fixedly inserted between the connecting piece of plug shell, the utility model is connected with connector when using, and the connecting piece of positive and negative is connected together through copper wire, while the bolt of multiple setting in lower end can be fixedly connected with the connector of positive and negative and integrated on the panel of equipment, the quick soft connection structure between two battery packs is realized, the assembly type structure of connector is realized, so that the current-carrying capacity of connector is high, size is small, cost is low, manufacturability is high, single soft copper wire or double soft copper wire structure, bending flexibility is good, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of battery connector technology, specifically a soft connection structure between battery packs. Background Technology

[0002] In fields such as high-current transmission and energy storage, increasing transmission power and raising voltage or current are effective solutions to meet people's growing demand for electricity.

[0003] However, current energy storage system connectors generally suffer from the following problems: 1. Traditional circular plug-in methods have limited contact area (current technologies generally range from 100-350A). 2.500A and above circular shapes occupy a large space, are heavy, costly, and difficult to manufacture; 3. When the installation distance is short, for products with an amperage rating of 500A or higher, the lack of flexibility in the flexible connectors makes assembly of the flexible products difficult. Therefore, this utility model provides a soft connection structure between battery packs to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a flexible connection structure between battery packs, which at least solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A flexible connection structure for battery packs includes a positive plug housing, a connector fixedly inserted into the upper end of the plug housing, a connector fixedly inserted into the lower end of the plug housing, and copper busbars fixedly inserted between the connectors.

[0006] As a further embodiment of this utility model, bolts are provided around the connector, hanging platforms are fixedly connected to both sides of the connector, and latches are provided on both sides of the plug housing.

[0007] As a further embodiment of this utility model, a male terminal is fixedly inserted into the inside of the connector, a plurality of fixing bolts are provided at the upper end of the male terminal, and a sealing ring is sleeved at the middle position of the male terminal.

[0008] As a further embodiment of this utility model, one end of the connector is provided with a mating interface, and a female terminal is inserted into the rear end of the mating interface. A carrier plate is fixedly connected to the rear end of the female terminal.

[0009] As a further embodiment of this utility model, a fixing nail is fixedly connected to one end surface of the bearing plate, and multiple fixing holes are opened at the other end of the bearing plate. A fixing plate is fixedly connected to the tail end of the female terminal.

[0010] As a further embodiment of this invention, a sealing gasket is fixedly connected to the tail end of the connector, and an annular sealing ring is fitted inside the sealing gasket.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. When using this utility model, the plug shell is connected to the connector, and the positive and negative terminals are connected together by copper busbars. At the same time, multiple bolts at the lower end can fix the positive and negative connectors to the device panel, realizing a quick soft connection structure between two battery packs and an assembly structure for the connector. This results in high current carrying capacity, small size, low cost, high manufacturability, single or double soft copper busbar structure, good bending flexibility, and convenient use.

[0012] 2. When this utility model is used, the female terminal structure is designed with the contact arms of the female terminal arranged at a certain distance from each other to achieve graded contact. This can reduce the insertion and extraction force when the female terminal and the male terminal are inserted, which is beneficial to actual operation. In addition, the female terminal is provided with a plurality of anti-retraction spring arms, and the connector is provided with corresponding anti-retraction grooves. When the female terminal is inserted into the connector, the anti-retraction spring arms can prevent the female terminal from retracting. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a flexible connection structure between battery packs.

[0014] Figure 2 This is an exploded view of the connector structure of a flexible connection structure between battery packs.

[0015] Figure 3 This is an exploded view of a connector structure for a flexible connection between battery packs.

[0016] In the diagram: 1. Plug housing; 101. Locking buckle; 102. Connecting rib; 2. Connector; 3. Copper busbar; 4. Connector; 41. Mounting platform; 42. Connecting interface; 5. Bolt; 6. Male terminal; 61. Retaining bolt; 62. Sealing ring; 7. Support plate; 71. Fixing nail; 72. Fixing hole; 8. Sealing gasket; 81. Annular sealing ring; 9. Female terminal; 91. Fixing plate. Detailed Implementation

[0017] To address the issue of limited contact area in traditional circular connector mating methods, this invention provides a flexible connection structure between battery packs.

[0018] 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.

[0019] Please see Figure 1 This utility model provides a flexible connection structure between battery packs, including a positive plug housing 1, a connector 2 fixedly inserted into the upper end of the plug housing 1, a connector 4 fixedly inserted into the lower end of the plug housing 1, and copper busbars 3 fixedly inserted between the connectors 2.

[0020] The number of plug housings 1 is two, respectively corresponding to the positive and negative terminals between the battery pack. The number of connectors 2 and connectors 4 corresponds to the number of plug housings 1. The copper busbars 3 between the connectors 2 are made of soft material, and the number of copper busbars 3 can be replaced with single copper busbars or double copper busbars according to power requirements to improve transmission power and realize current transmission so that the host / device / control unit can obtain / store electrical energy. At the same time, the connectors 2 adopt a secondary encapsulation structure to wrap the metal parts on the soft copper busbar and the conductor male terminal, providing insulation protection and combining the soft copper busbar and the plastic shell body together.

[0021] Please see Figure 2 In some embodiments, bolts 5 are provided around the connector 4, hanging platforms 41 are fixedly connected to both sides of the connector 4, and latches 101 are provided on both sides of the plug housing 1.

[0022] Bolts 5 are set at the four corners of the connectors 4 corresponding to the positive and negative poles on both sides. When the plug housing 1 is connected to the connector 4, the latches 101 on both sides of the plug housing 1 can be fastened to the mounting bases 41 on both sides of the connector 4 to achieve a fixed connection between the plug housing 1 and the connector 4. Then, the connector 2 is inserted into the top of the plug housing 1, and the connectors 2 of the positive and negative poles are connected together through the copper busbar 3. At the same time, the multiple bolts 5 at the lower end can fix the connectors 4 of the positive and negative poles to the panel of the device, realizing a soft connection structure between the two battery packs.

[0023] In some embodiments, a male terminal 6 is fixedly inserted into the inside of the connector 2, a plurality of fixing bolts 61 are provided at the upper end of the male terminal 6, and a sealing ring 62 is sleeved at the middle position of the male terminal 6.

[0024] The male terminal 6 of connector 2 is made of L-shaped conductive metal material, and its lower end is inserted into the connection port of plug housing 1. The sealing ring 62 of male terminal 6 is set inside connector 2 and at the connection port of male terminal 6, mainly to ensure that the product has sufficient waterproof performance. The end of copper busbar 3 has multiple round holes. The fixing pin 61 set at the upper end of male terminal 6 is fixedly connected to the round hole at the end of copper busbar 3 inserted into connector 2, so as to realize the fixed connection of copper busbar 3 between connectors 2.

[0025] Please see Figure 3 In some embodiments, one end of the connector 4 is provided with a mating interface 42, and a female terminal 9 is inserted into the rear end of the mating interface 42. A carrier plate 7 is fixedly connected to the rear end of the female terminal 9.

[0026] The interface 42 extends into the interior of the connector 4 and protrudes from the other end. The contact arms of the female terminal 9 are designed with a certain distance between the front and back to achieve graded contact. This reduces the insertion and extraction force when the female terminal and the male terminal are mated, which is beneficial for actual operation. The female terminal is provided with multiple anti-retraction spring arms, and the connector is provided with corresponding anti-retraction grooves. When the female terminal is installed into the connector 4, the anti-retraction spring arms can prevent the female terminal from retracting. At the same time, the interface 42 is provided with multiple anti-misalignment ribs, and the connector 2 is provided with multiple anti-misalignment grooves. The anti-misalignment structure can prevent connector mismatch and ensure the uniqueness of product assembly relationship.

[0027] In some embodiments, a fixing nail 71 is fixedly connected to one end surface of the support plate 7, and a plurality of fixing holes 72 are opened at the other end of the support plate 7. A fixing plate 91 is fixedly connected to the tail end of the female terminal 9.

[0028] The fixing plate 91 is provided with multiple anchor bolts for fixing. When assembling the connector 4, the anchor bolts can be inserted into the fixing holes 72 on the carrier plate 7 to achieve a fixed connection between the carrier plate 7 and the female terminal 9.

[0029] In some embodiments, a sealing gasket 8 is fixedly connected to the tail end of the connector 4, and an annular sealing ring 81 is sleeved on the inner side of the sealing gasket 8.

[0030] After the female terminal 9 and the carrier plate 7 are assembled in the connector 4, the sealing gasket 8 can be fastened to the tail end of the connector 4. The sealing gasket 8 is used to seal between the positive and negative connector (4) and the device panel, and the annular sealing ring 81 is used to seal between the plug housing (1) and the positive and negative connector (4).

[0031] When this utility model is in use, when the plug housing 1 is connected to the connector 4, the latches 101 on both sides of the plug housing 1 can be correspondingly fastened to the mounting bases 41 on both sides of the connector 4 to achieve a fixed connection between the plug housing 1 and the connector 4. At this time, the connector 2 is inserted into the top of the plug housing 1, and the positive and negative connectors 2 are connected together by the copper busbar 3. Meanwhile, the multiple bolts 5 at the lower end can fix the positive and negative connectors 4 to the panel of the device.

[0032] 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 flexible connection structure between battery packs, characterized in that, It includes a positive plug housing (1), a connector (2) is fixedly inserted into the upper end of the plug housing (1), a connector (4) is fixedly inserted into the lower end of the plug housing (1), and copper busbars (3) are fixedly inserted between the connectors (2).

2. The soft connection structure between battery packs according to claim 1, characterized in that, Bolts (5) are provided around the connector (4), and hanging platforms (41) are fixedly connected to both sides of the connector (4). Locks (101) are provided on both sides of the plug housing (1).

3. The soft connection structure between battery packs according to claim 1, characterized in that, The connector (2) has a male terminal (6) fixedly inserted inside. The upper end of the male terminal (6) is provided with multiple fixing bolts (61). A sealing ring (62) is sleeved in the middle position of the male terminal (6).

4. The soft connection structure between battery packs according to claim 2, characterized in that, One end of the connector (4) is provided with a mating interface (42), and a female terminal (9) is inserted into the rear end of the mating interface (42). A carrier plate (7) is fixedly connected to the rear end of the female terminal (9).

5. The soft connection structure between battery packs according to claim 1, characterized in that, A fixing nail (71) is fixedly connected to one end surface of the bearing plate (7).

6. The flexible connection structure between battery packs according to claim 5, characterized in that, The other end of the support plate (7) is provided with multiple fixing holes (72), and the tail end of the female terminal (9) is fixedly connected to a fixing plate (91).

7. The soft connection structure between battery packs according to claim 5, characterized in that, The connector (4) is fixedly connected to a sealing gasket (8) at its tail end, and an annular sealing ring (81) is fitted inside the sealing gasket (8).

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