CN211295247U

CN211295247U - Battery pack structure with multiple battery cells connected in series-parallel

Info

Publication number: CN211295247U
Application number: CN202020145666.7U
Authority: CN
Inventors: 李永通; 李传贵; 周凌; 敖长宣
Original assignee: Zhuhai Kechuang Power Electronics Co ltd
Current assignee: Zhuhai Kechuang Power Electronics Co ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-08-18
Anticipated expiration: 2030-01-22

Abstract

The utility model relates to a battery equipment technical field, in particular to many parallelly connected battery pack structures of cell cluster, include: the battery assembly comprises a parallel aluminum row and a plurality of battery cores arranged at intervals, wherein the parallel aluminum row is provided with a binding post and a plurality of connecting parts, and the connecting parts are correspondingly connected with homopolar terminal ends of the battery cores; one end of the series aluminum bar is connected with a terminal on the positive electrode of one battery assembly, and the other end of the series aluminum bar is connected with a terminal on the negative electrode of the other battery assembly; the utility model discloses use electric core as the unit, through parallelly connected aluminium row with a plurality of electricity core connect back rethread series connection aluminium row and constitute the battery module, the notion of reduction battery pack case to can be according to the quantity of actual demand series-parallel connection electric core, simple structure, reduction in production cost, extensive applicability moreover.

Description

Battery pack structure with multiple battery cells connected in series-parallel

Technical Field

The utility model relates to a battery equipment technical field, in particular to many parallelly connected battery pack structures of cell cluster.

Background

Under the big background that the new forms of energy trade is exponential growth, lithium cell energy storage technology is also ripe gradually day by day, and current energy storage project blindly imitates automobile-used pack, usually with the electricity core form a plurality of pack case back series-parallel connection again, such mode structure is complicated, the manufacturing cost of product is very high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a many electric cores series-parallel connection's battery pack structure can weaken the notion of pack case, can be according to actual demand series-parallel connection a plurality of electric core, with battery pack simple structure, reduction in production cost.

According to the utility model discloses a many electric cores series-parallel connection's battery pack structure of first aspect embodiment, include: the battery assembly comprises a parallel aluminum row and a plurality of battery cores arranged at intervals, wherein the parallel aluminum row is provided with a binding post and a plurality of connecting parts, and the connecting parts are correspondingly connected with homopolar terminal ends of the battery cores; and one end of the series aluminum bar is connected with a terminal on the positive electrode of one battery assembly, and the other end of the series aluminum bar is connected with a terminal on the negative electrode of the other battery assembly.

According to the utility model discloses many electric cores series-parallel connection's battery pack structure has following beneficial effect at least: the utility model discloses use electric core as the unit, through parallelly connected aluminium row with a plurality of electricity core connect back rethread series connection aluminium row and constitute the battery module, the notion of reduction battery pack case to can be according to the quantity of actual demand series-parallel connection electric core, simple structure, reduction in production cost, extensive applicability moreover.

According to some embodiments of the invention, the terminal and/or the connecting portion and the parallel aluminum row are integrally formed.

According to some embodiments of the utility model, be provided with the external screw thread on the terminal, establish ties the aluminium row with parallelly connected aluminium row through lock nut with the terminal cooperatees with fixed connection.

According to some embodiments of the invention, the battery pack is a plurality of battery packs.

According to the utility model discloses a some embodiments still include insulating barrier, the last a plurality of mounting groove that is provided with of insulating barrier, electric core correspond set up in the mounting groove.

According to some embodiments of the utility model, there are two of insulating barrier to be established respectively the lower extreme on the electricity core.

According to some embodiments of the present invention, the parallel aluminum row is provided with a positive electrode mark or a negative electrode mark.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded view of an embodiment of the present invention;

fig. 2 is an assembly schematic diagram of a multi-cell series-parallel connection according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the parallel aluminum row of the present invention.

Wherein: a tray 100; a battery cell 101; parallel aluminum rows 102; a series aluminum row 103; a connecting portion 104; a terminal 105; a lock nut 106; an external aluminum row 107; an insulating spacer 201; mounting slots 202.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 3, the multi-cell serial-parallel battery pack structure includes a plurality of battery packs and a serial aluminum row 103, where the battery pack includes a plurality of cells 101 arranged at intervals and a parallel aluminum row 102, the parallel aluminum row 102 is correspondingly connected to the homopolar terminals of the cells 101, specifically, one battery pack is matched with two parallel aluminum rows 102, one of the parallel aluminum rows 102 is connected to the anodes of the cells 101, the other parallel aluminum row 102 is connected to the cathodes of the cells 101, that is, the two parallel aluminum rows 102 can connect the cells 101 in parallel to form the battery pack, and two adjacent battery packs are connected through the serial aluminum row 103, that is, the anodes and the cathodes of the two adjacent battery packs are connected, that is, the technical solution can connect a plurality of cells 101 in parallel to form the battery pack according to actual needs, and can connect a plurality of battery packs in series according to actual needs to form the battery pack structure, the battery pack structure has wide applicability, and is not limited to firstly forming the pack boxes with fixed specifications, and then connecting the plurality of pack boxes with fixed specifications in series and in parallel to meet the actual requirements; in this embodiment, the parallel aluminum bar 102 is provided with a terminal 105 and a plurality of connection portions 104, the connection portions 104 and the positive electrode or the negative electrode of the battery cell 101 may be conductively connected in a contact manner by welding, riveting, clamping, or screwing, and the like, two ends of the serial aluminum bar 103 are provided with through holes capable of passing through the terminal 105, and the serial aluminum bar 103 is conductively connected in a contact manner by welding, riveting, or screwing, and the like after penetrating through the terminal 105.

In some embodiments, the posts 105 and/or the connecting portions 104 are integrally formed with the parallel aluminum row 102, and the parallel aluminum row 102 may be made of copper-aluminum alloy or the like, which is aimed at improving the electrical conductivity of the parallel aluminum row 102.

In some embodiments, an external thread is disposed on the terminal 105, and the series aluminum row 103 and the parallel aluminum row 102 are matched with the terminal 105 through the lock nut 106 to be fixedly connected, in this embodiment, an elastic gasket is further disposed between the lock nut 106 and the series aluminum row 103, which aims to ensure that the series aluminum row 103 and the terminal 105 can be stably connected, and poor contact is avoided.

In some embodiments, as shown in fig. 1 and fig. 2, a plurality of battery assemblies are arranged side by side at intervals, specifically, the battery pack structure further includes a tray 100 and two insulating partition boards 201, one insulating partition board 201 is placed on the tray 100, and the insulating partition board 201 can be fixed to the tray 100 by means of clamping or screwing, a plurality of mounting slots 202 are arranged on the insulating partition board 201 at intervals, the battery cells 101 can be placed into the mounting slots 202 at intervals, and another insulating partition board 201 is covered on the plurality of battery cells 101 from top to bottom to ensure that the upper ends of the plurality of battery cells 101 do not want to be easily contacted or collided against deflection, and then the parallel aluminum rows 102 are welded to the positive pole or the negative pole of the battery cells 101 to mount the battery assemblies, in this embodiment, there may be another mounting means that the battery assemblies are arranged corresponding to the insulating partition boards 201 in a manner that the battery cells 101 are placed into the mounting slots 202 correspondingly, and the other insulating separator 201 is covered on the battery assembly from top to bottom; an insulating partition board 201 is placed on one tray 100, a plurality of battery components can be arranged on one insulating partition board 201, and finally the battery components are connected in series through a series aluminum row 103; it should be noted that a plurality of battery cells 101 may be placed on the insulating partition 201 at intervals of the same battery assembly according to actual needs, in this embodiment, 4 battery cells 101 are placed, and the 4 battery cells 101 connect the positive electrodes in parallel and connect the negative electrodes in parallel through two parallel aluminum bars 102 to form a battery assembly, which may also be a combination of 2, 3, or 5 battery cells 101 or other numbers of battery cells 101; and can install a plurality of battery pack on insulating barrier 201 according to actual need, this embodiment adopts two rows of structures to every row sets up 4 battery packs side by side, adopts series connection aluminium row 103 to connect between two adjacent battery packs, and two battery packs of head and tail end still are connected with external aluminium row 107, and wherein the battery pack's of head end positive pole is equipped with the external aluminium row 107 of anodal, and the terminal battery pack's of tail end negative pole is equipped with the external aluminium row 107 of negative pole.

In some embodiments, the parallel aluminum bars 102 are provided with positive marks or negative marks, the positive marks may be "+" patterns engraved or marked on the parallel aluminum bars 102, and the negative marks may be "-" patterns engraved or marked, which are used for facilitating the connection of the positive and negative electrodes of the battery assembly, respectively, and avoiding a connection error of the battery pack, and also facilitating the accurate connection of the electrodes of the battery cells 101 to the corresponding parallel aluminum bars 102, and avoiding a connection error of the battery assembly.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. Many electric cores series-parallel's battery pack structure, its characterized in that includes:

the battery assembly comprises a parallel aluminum row (102) and a plurality of battery cores (101) arranged at intervals, wherein a binding post (105) and a plurality of connecting parts (104) are arranged on the parallel aluminum row (102), and the connecting parts (104) are correspondingly connected with homopolar terminal ends of the battery cores (101);

the series aluminum bar (103) is connected with a terminal (105) on the positive electrode of one battery assembly at one end, and is connected with a terminal (105) on the negative electrode of the other battery assembly at the other end.

2. The multi-cell series-parallel battery pack structure according to claim 1, wherein the terminal (105) and/or the connection portion (104) are integrally formed with the parallel aluminum row (102).

3. The multi-cell series-parallel battery pack structure according to claim 1, wherein the terminal (105) is provided with an external thread, and the series aluminum row (103) and the parallel aluminum row (102) are matched with the terminal (105) through a lock nut (106) to be fixedly connected.

4. The multi-cell series-parallel battery pack structure according to claim 1, wherein a plurality of the battery assemblies are arranged side by side at intervals.

5. The multi-cell series-parallel battery pack structure according to claim 1, further comprising an insulating partition plate (201), wherein a plurality of mounting grooves (202) are formed in the insulating partition plate (201), and the cells (101) are correspondingly disposed in the mounting grooves (202).

6. The multi-cell series-parallel battery pack structure according to claim 5, wherein the number of the insulating partition plates (201) is two, which are respectively provided at the upper and lower ends of the cells (101).

7. The multi-cell series-parallel battery pack structure according to claim 1, wherein the parallel aluminum row (102) is provided with a positive pole mark or a negative pole mark.