Insulating supporting seat and connecting bar assembly

Abstract

The utility model discloses an insulating supporting seat and a connecting bar assembly. The insulating supporting seat comprises a fixed connecting piece and an insulating block. The fixed connecting piece comprises a vertical part and a horizontal part; the horizontal part is connected with a mounting platform of the battery pack; the insulating block is fixed on the vertical part, and the insulating block is provided with a blind groove which is used for being in plugging cooperation with a bus member. The insulating block in the insulating supporting seat is provided with the blind groove used for being matched with the confluence piece in an inserted mode, and compared with an insulating seat composed of a first insulating block and a second insulating block, the insulating performance is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of batteries, and in particular relates to an insulating support seat and a connecting row assembly. Background Art

[0002] Existing lithium battery technology is mainly used in electric vehicles as a power source for electric vehicles, and is also used in power plants as an energy storage system for storing and releasing electrical energy.

[0003] Energy storage systems can be used in power grids to fill peaks and reduce valleys, meeting the power supply needs of urban distribution networks during peak and valley periods of electricity consumption in different time periods and regions.

[0004] The energy storage system needs to have a large charge and discharge capacity, so it is necessary to connect multiple single cells to form a battery module, and then connect multiple battery modules to form a battery pack, and finally connect multiple battery packs to form an energy storage system with a large charge and discharge capacity.

[0005] A connection bar assembly is provided in the related art, such as Figure 1 As shown, the connector bar assembly, used for electrical connection between battery packs, includes an insulating base 1, a busbar 2, and multiple electrical connection plates 3. The insulating base 1 is composed of two parts: a first insulating block 11 and a second insulating block 12, which are screwed together to clamp the ends of the busbar 2. Due to a gap A between the first insulating block 11 and the second insulating block 12, the insulation performance of the connector bar assembly is difficult to meet requirements. Utility Model Content

[0006] In order to solve the problem in the related art that the insulation performance of the connecting bar assembly is difficult to meet the requirements, the first aspect of the present invention provides an insulating support seat.

[0007] The insulating support seat includes a fixed connector and an insulating block;

[0008] The fixed connector includes a vertical portion and a horizontal portion; the horizontal portion is used to connect to the mounting platform of the battery pack; the insulating block is fixed to the vertical portion, and a blind groove is provided on the insulating block for plugging and mating with the busbar.

[0009] The insulating block in the insulating support seat of the utility model has a blind groove for plugging and mating with the busbar. Compared with the insulating seat composed of the first insulating block and the second insulating block (with a gap A in the insulating seat), the insulation performance is greatly improved.

[0010] Furthermore, two bolt holes are provided on the insulating block, and the two bolt holes are respectively located above and below the blind groove, and the two bolt holes and the blind groove are isolated from each other.

[0011] Further, the vertical part and the horizontal part are integrally formed of a metal material, and the insulating block is made of an epoxy board.

[0012] A second aspect of the present utility model provides a connection row assembly for realizing electrical connection between multiple battery packs; the connection row assembly includes an electrical connection plate, a bus bar, and the insulating support seat as described in the first aspect;

[0013] There are two insulating support seats; the two insulating support seats are used for fixedly installing the mounting platform of the battery pack;

[0014] Both ends of the bus bar are respectively inserted into the blind slots of the insulating blocks in the two insulating support seats;

[0015] There are multiple electrical connection plates, and the upper end of each electrical connection plate is correspondingly connected to a single battery pole column of the battery module in the battery pack, and the lower end of each electrical connection plate is fixedly connected to the bus bar.

[0016] Further, the part of the bus bar inserted into the blind slot is coated with an insulating sleeve.

[0017] Further, the electrical connection plate is coated with a heat-shrinkable insulating sleeve.

[0018] Further, the bus bar includes a first bus bar plate and a second bus bar plate; the first bus bar plate and the second bus bar plate fixedly clamp the lower ends of multiple electrical connection plates between them by means of screw connection. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a connection row assembly in the related art;

[0020] Figure 2 It is a schematic structural diagram of the insulating support seat;

[0021] Figure 3 It is a schematic structural diagram of the connection row assembly;

[0022] The reference numerals are as follows:

[0023] 1 - insulating seat, 11 - first insulating block, 12 - second insulating block, 2 - bus bar, 21 - first bus bar plate, 22 - second bus bar plate, 3 - electrical connection plate, 4 - fixing connector, 41 - vertical part, 42 - horizontal part, 5 - insulating block, 6 - blind slot, 7 - bolt hole, 100 - insulating support seat. Detailed Embodiments

[0024] The technical solution will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments. Based on the following embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Meanwhile, it should be noted that the orientation or positional relationship indicated by terms such as "upper, lower, inner and outer" in the text is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the technical solution. In addition, terms such as "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] Unless otherwise clearly defined and limited in the present utility model, the terms "installation, connection and coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection: it may also be a mechanical connection, an electrical connection or a direct connection, or may be indirectly connected through an intermediate medium, or may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] This embodiment provides an insulating support base 100, as Figure 2 shown. The insulating support base 100 includes a fixed connecting piece 4 and an insulating block 5; the fixed connecting piece 4 includes a vertical portion 41 and a horizontal portion 42; the horizontal portion 42 is used for connecting with the installation platform of the battery pack; the insulating block 5 is fixed to the vertical portion, and a blind slot 6 for plugging and matching with a busbar is arranged on the insulating block 5. In the insulating support base of the present utility model, the insulating block 5 has a blind slot for plugging and matching with a busbar, and compared with the insulating base composed of a first insulating block and a second insulating block, the insulating performance is greatly improved.

[0028] In this embodiment, the insulating block 5 in the insulating support base is made of an epoxy board; the vertical portion 41 and the horizontal portion 42 are formed by an integral molding method using a metal material; for example, an aluminum thin plate or a copper thin plate is formed by bending, where a part is the vertical portion and a part is the horizontal portion;

[0029] In this embodiment, two bolt holes 7 are formed on the insulating block 5. The two bolt holes 7 are respectively located above and below the blind slot 6, and the two bolt holes 7 are isolated from the blind slot 6; the insulating block 5 is made of an epoxy board.

[0030] Based on the above insulating support base, this embodiment further provides a connection row assembly for realizing the electrical connection between multiple battery packs; as Figure 3As shown in the figure, the connection row assembly includes an electrical connection plate 3, a bus bar 2, and the above-mentioned insulating support base 100; there are two insulating support bases 100; the two insulating support bases 100 are used to fixedly install the installation platform of the battery pack; both ends of the bus bar 2 are respectively inserted into the blind slots 6 of the insulating blocks 5 in the two insulating support bases; preferably, the part of the bus bar 2 inserted into the blind slot 6 is coated with an insulating sleeve; this insulating sleeve not only ensures insulation, but also undergoes a certain flexible deformation after being inserted into the blind slot, which can make the fixation of the bus bar more reliable after being fixed on the insulating support base.

[0031] There are multiple electrical connection plates 3. The upper end of each electrical connection plate 3 is correspondingly connected to a single battery pole of the battery module in the battery pack, and the lower end of each electrical connection plate 3 is fixedly connected to the bus bar 2.

[0032] In this embodiment, the bus bar 2 includes a first bus bar 21 and a second bus bar 22; the first bus bar 21 and the second bus bar 22 fixedly clamp the lower ends of the multiple electrical connection plates 3 between them, and fix the lower ends of the electrical connection plates 3 between the first bus bar 21 and the second bus bar 22 by means of screw connection. It should be noted that: the area of this screw connection can also be used as a fixed area for electrically connecting with the connection row assembly of another battery pack;

[0033] In some other embodiments, the bus bar can be just a single bus bar plate. The two ends of the bus bar plate are fixed to the insulating support base, and the electrical connection plate is fixed to the bus bar plate by means of screw connection. However, compared with the method of clamping the electrical connection plate by the first bus bar and the second bus bar and then fixing it by screw connection, there may be virtual contact points between the electrical connection part and the bus bar. These virtual contact points may have problems such as excessive resistance and poor current transmission, and these virtual contact points may also have problems such as continuous heating and even burning. Therefore, compared with this embodiment, the structure of this embodiment is safer and more reliable.

[0034] It should be emphasized that: for the convenience of assembly, the electrical connection plate and the bus bar need to be made of flexible metal materials, for example: aluminum materials or copper materials; aluminum has a lower cost than copper, but copper has a better conductivity. Considering both cost and conductivity, in this embodiment, the electrical connection plate is made of aluminum material and the bus bar is made of copper material.

[0035] Preferably, in order to improve the corrosion resistance and insulation of the electrical connection plate, a heat-shrinkable insulating sleeve is provided on each electrical connection plate. It should be noted that: the part of the electrical connection plate where the heat-shrinkable insulating sleeve is provided is the area excluding the area connected to the single battery pole and the area connected to the bus bar plate.

Claims

1. An insulating support seat, characterized in that, It includes a fixed connecting piece and an insulating block; The fixed connecting piece includes a vertical part and a horizontal part; the horizontal part is used to connect with the installation platform of the battery pack; the insulating block is fixed to the vertical part, and a blind slot for plugging and mating with the busbar is provided on the insulating block.

2. An insulating support seat according to claim 1, characterized in that, Two bolt holes are formed in the insulating block, and the two bolt holes are respectively located above and below the blind slot, and the two bolt holes are isolated from each other and the blind slot.

3. An insulating support seat according to claim 1, characterized in that, The vertical part and the horizontal part are integrally formed of a metal material, and the insulating block is made of an epoxy board.

4. A connection row assembly for achieving electrical connection between multiple battery packs; characterized in that, The connection row assembly includes an electric connection board, a busbar, and the insulating support seat according to any one of claims 1 to 3; There are two insulating support seats; the two insulating support seats are used to fixedly install the installation platform of the battery pack; Both ends of the busbar are respectively inserted into the blind slots of the insulating blocks in the two insulating support seats; There are multiple electric connection boards, the upper end of each electric connection board corresponds to and connects a single battery pole column of the battery module in the battery pack, and the lower end of each electric connection board is fixedly connected to the busbar.

5. The connection row component according to claim 4, characterized in that, The part of the busbar inserted into the blind slot is coated with an insulating sleeve.

6. The connection row component according to claim 4, characterized in that The electric connection board is coated with a heat-shrinkable insulating sleeve.

7. The connection row component according to claim 4, characterized in that The busbar includes a first busbar plate and a second busbar plate; the first busbar plate and the second busbar plate fixedly clamp the lower ends of multiple electric connection boards between them by means of screw connection.

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