CN212485458U

CN212485458U - Battery combination module and electric vehicle battery

Info

Publication number: CN212485458U
Application number: CN202021146706.6U
Authority: CN
Inventors: 和学勐; 林海生; 吴成
Original assignee: Shiyan Mengshi New Energy Technology Co ltd
Current assignee: Shiyan Mengshi New Energy Technology Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-02-05
Anticipated expiration: 2030-06-19

Abstract

A battery assembly module, comprising: the battery module comprises a plurality of battery modules which are vertically overlapped and a PCB (printed circuit board) which is fixedly connected with an upper bracket of the battery module at the uppermost end; the battery module comprises an upper bracket and a lower bracket which are opposite up and down; the upper ends of the plurality of cylindrical battery cells are fixed on the upper bracket, and the lower ends of the plurality of cylindrical battery cells are fixed on the lower bracket; the plurality of cylindrical battery cells are connected in series and in parallel through the FPC acquisition board and the plurality of busbars; the upper bracket of each battery module except the uppermost battery module is fixedly attached to the lower bracket of the other battery module adjacent to the upper side, and an insulating plate is arranged between the upper bracket and the lower bracket; the total positive and the total negative of the plurality of battery modules after being connected in series are respectively electrically connected to the PCB. The utility model discloses a battery combination module and electric motor car battery coincide about through a plurality of battery modules to end the end to end through upper bracket and lower carriage and connect, it can reduce length and width under the certain prerequisite of capacity, increases the height, and the structure is comparatively compact moreover.

Description

Battery combination module and electric vehicle battery

Technical Field

The utility model relates to a battery technology field, concretely relates to battery combination module and electric motor car battery.

Background

Along with the use of national lithium batteries in the situations of electric bicycles, electric motorcycles and low-speed vehicles with ever-increasing popularity, the length and width of the batteries are as small as possible under the condition that the electric quantity of the batteries of the whole vehicle is not changed, and the height of the batteries can be lengthened, so that a new module form is required to meet the requirement.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a battery combination module, make its length and width less, and highly higher.

The utility model provides a technical scheme that technical problem adopted is: a battery assembly module, comprising: the battery module comprises a plurality of battery modules which are vertically overlapped and a PCB (printed circuit board) which is fixedly connected with an upper bracket of the battery module at the uppermost end;

the battery module comprises an upper bracket and a lower bracket which are opposite up and down; the upper ends of the plurality of cylindrical battery cells are fixed on the upper bracket, and the lower ends of the plurality of cylindrical battery cells are fixed on the lower bracket; the plurality of cylindrical battery cells are connected in series and in parallel through the FPC acquisition board and the plurality of busbars;

the upper bracket of each battery module except the uppermost battery module is fixedly attached to the lower bracket of the other battery module adjacent to the upper side, and an insulating plate is arranged between the upper bracket and the lower bracket; the total positive and the total negative of the plurality of battery modules after being connected in series are respectively electrically connected to the PCB.

Preferably, the FPC collection board and the plurality of busbars are located on an upper side of the upper bracket.

Preferably, the plurality of cylindrical battery cores are wrapped with a coating layer.

Preferably, the total positive pole of each lower battery module is electrically connected with the total negative pole of another battery module adjacent to the upper side through a first power guide pillar, and the total negative pole of the battery module at the lowest end is electrically connected to the PCB board through a second power guide pillar; the battery module at the top end is always electrically connected to the PCB through a third power guide pillar.

Preferably, in each battery module: an upper terminal head is connected to the center of the upper end of the FPC acquisition board, a lower terminal head is fixed to the center of the lower support, and the upper terminal head and the lower terminal head are connected through a plurality of acquisition wires; the busbar which is connected with the total positive ends of the plurality of cylindrical battery cells and the busbar which is connected with the total negative ends of the plurality of cylindrical battery cells are locked on the upper bracket through self-tapping screws respectively; the upper terminal head is electrically connected with the total positive and the total negative of the battery module respectively through two collecting wires; the upper terminal head of each lower battery module is inserted with the lower terminal head of the other battery module adjacent to the upper side.

The utility model also provides an electric motor car battery, it includes: the upper cover is fixedly covered at the upper end of the sleeve, the lower cover is fixedly covered at the lower end of the sleeve, and the sleeve, the upper cover and the lower cover enclose a cavity; in the battery assembly module, the battery assembly module is fixedly arranged in the cavity; and the auxiliary cover is fixedly arranged on the upper cover, a plug is arranged on the auxiliary cover, and the total positive and the total negative of the battery combination module are respectively and electrically connected with the plug.

Preferably, the upper cover is further hinged with a rotating handle, and the rotating handle is positioned on one side far away from the auxiliary cover when being rotatably attached to the upper cover.

Preferably, a hinge point of the rotation handle and the upper cover is disposed on a center line of the upper cover.

The utility model discloses a battery combination module and electric motor car battery coincide about through a plurality of battery modules to end the end to end through upper bracket and lower carriage and connect, it can reduce length and width under the certain prerequisite of capacity, increases the height, and the structure is comparatively compact moreover.

Drawings

Fig. 1 is a perspective view of a battery module according to a preferred embodiment of the present invention;

fig. 2 is a perspective view of another angle of the battery module according to a preferred embodiment of the present invention;

fig. 3 is a perspective view of a battery module according to a preferred embodiment of the present invention;

fig. 4 is a perspective view of a part of the battery module according to a preferred embodiment of the present invention;

fig. 5 is a perspective view of an electric vehicle battery of the battery module according to a preferred embodiment of the present invention;

fig. 6 is a perspective view of another state of the electric vehicle battery of the battery module according to a preferred embodiment of the present invention;

description of reference numerals: 1. a lower cover; 2. a sleeve; 3. an upper cover; 4. attaching a cover; 5. rotating the handle; 6. a plug; 7. a battery assembly module; 8. a first battery module; 9. a second battery module; 10. a third battery module; 11. a PCB board; 12. a first power guide post; 13. a second power guide post; 14. a third power guide post; 15. a first power guide post; 16. an insulating plate; 17. an insulating plate; 18. a screw; 101. a cylindrical cell; 102. an upper bracket; 103. a lower bracket; 104. a bus bar; 105. an FPC acquisition board; 106. a coating layer; 107. a self-tapping screw;

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1 to fig. 6.

The utility model discloses a battery combination module 7, including a plurality of battery modules of stacking from top to bottom (battery module 8, two 9 of battery module and three 10 of battery module) to and the PCB board 11 with the upper bracket 102 fixed connection of the battery module of top.

Wherein, each battery module comprises an upper bracket 102 and a lower bracket 103 which are opposite up and down. The upper ends of a plurality of cylindrical cells 101 are fixed on the upper bracket 102. The lower end is fixed on the lower bracket 103. The plurality of cylindrical cells 101 are connected in series and parallel via an FPC (Flexible Printed Circuit) collection board 105 and a plurality of busbars 104. The FPC collection board 105 and the plurality of bus bars 104 are located on the upper side of the upper holder 102. A plurality of cylindrical cells 101 are wrapped with a coating layer 106, and the coating layer 106 may be insulating paper. The upper bracket 102 and the lower bracket 103 are substantially square.

The upper bracket 102 of the first battery module 8 and the lower bracket 103 of the second battery module 9 are fixed by the screws 18. And an insulating plate 16 is provided therebetween.

The upper holder 102 of the second battery module 9 and the lower holder 103 of the third battery module 10 are also fixed by a plurality of screws, and an insulating plate 17 is provided therebetween.

The total positive side of the battery module I8 is electrically connected with the total negative side of the battery module II 9 adjacent to the upper side through a first power guide post 15. The total positive side of the battery module I8 is electrically connected with the total negative side of the battery module II 9 adjacent to the upper side through a first power guide post 12. The total negative pole of the battery module I8 is electrically connected to a PCB 11 through a second power guide post 13. The battery module three 10 is electrically connected to the PCB board 11 through a third power guide pillar 14. Thus, the plurality of battery modules are electrically connected to the PCB board 11 through the total positive and the total negative after being connected in series, respectively.

The PCB 11 is connected with the upper bracket 102 of the battery module I8 through screws, and an insulating pad and a plurality of insulating support columns are arranged at intervals.

In some other embodiments, preferably, in each battery module: an upper terminal head is connected to the center of the upper end of the FPC collection board 105. A lower terminal head is fixed at the center of the lower bracket 103. The upper terminal head is connected with the lower terminal head through a plurality of collecting wires. The upper terminal head is respectively and electrically connected to the total positive and total negative of the battery module at which the upper terminal head is positioned through two acquisition conducting wires, so that the voltage data of the battery module are acquired. The upper terminal head of each lower battery module is inserted with the lower terminal head of the other battery module adjacent to the upper side. Like this, the total positive of every battery module, total negative accessible wherein two gather the wire and derive, can conveniently monitor the voltage of battery module, can avoid using the pencil to connect and the shortcoming that the line of walking that leads to is complicated, the pencil is easily damaged by pressure simultaneously.

The busbar 104 connected with the overall positive of the plurality of cylindrical cells and the busbar 104 connected with the overall negative of the plurality of cylindrical cells are respectively locked to the upper bracket 102 by tapping screws 107. Thus, the disconnection at the time of connection can be prevented. The other busbars 104 may be soldered to the cylindrical cells and the FPC board 105.

The novel electric vehicle battery comprises the battery combination module 7, a sleeve 2, an upper cover 3 and a lower cover 1. The upper cover 3 is fixedly covered on the upper end of the sleeve 2. The lower cover 1 is fixed on the lower end of the sleeve 2. The sleeve 2, the upper cover 3 and the lower cover 1 enclose a containing cavity. The battery combination module 7 is fixedly arranged in the containing cavity. An auxiliary cover 4 is also arranged on the upper cover 3. The auxiliary cover 4 is provided with a plug 6. The total positive and total negative of the battery module assembly 7 are electrically connected to the plug 6, respectively, so that charging can be performed. Wherein, the auxiliary cover 4 can be horizontally clamped on the upper cover 3.

In addition, the upper terminal head of the uppermost battery module (battery module one 8) is also electrically connected to the plug 6, so that the voltage of the battery module can be monitored by connecting a monitoring circuit through the plug 6.

In other embodiments, it is preferable that the upper cover 3 is further hinged with a rotating handle 5. The rotary handle 5 is positioned on the side far from the attached cover 4 when being rotatably attached to the upper cover 3. The hinge point of the rotating handle 5 and the upper cover 3 is arranged on the center line of the upper cover. The rotary handle 5 and the auxiliary cover 4 can be used for covering screw holes on the PCB 11 so as to improve the aesthetic degree of the battery of the electric vehicle.

Other parts not described in detail in the present invention belong to the prior art, and are not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A battery module assembly, comprising: a plurality of battery modules which are overlapped up and down, and a PCB (11) fixedly connected with an upper bracket (102) of the battery module at the uppermost end;

the battery module comprises an upper bracket (102) and a lower bracket (103) which are opposite up and down; the upper ends of a plurality of cylindrical battery cells (101) are fixed on the upper bracket (102), and the lower ends of the plurality of cylindrical battery cells are fixed on the lower bracket (103); the plurality of cylindrical battery cells (101) are connected in series and in parallel through an FPC acquisition board (105) and a plurality of busbars (104);

the upper bracket (102) of each battery module except the uppermost battery module is fixedly attached to the lower bracket (103) of the other battery module adjacent to the upper side, and an insulating plate is arranged between the upper bracket and the lower bracket; the total positive and the total negative of the plurality of battery modules after being connected in series are respectively electrically connected to the PCB (11).

2. The battery module as set forth in claim 1, wherein the FPC pickup board (105) and the plurality of bus bars (104) are located on an upper side of the upper holder (102).

3. The battery module assembly of claim 1, wherein the plurality of cylindrical cells (101) are wrapped with a coating (106).

4. The battery module assembly according to claim 3, wherein the total positive side of each lower battery module is electrically connected to the total negative side of another battery module adjacent to the upper side by a first power guide post, and the total negative side of the lowest battery module is electrically connected to a PCB (11) by a second power guide post (13); the uppermost battery module is always electrically connected to the PCB board (11) through a third power guide post (14).

5. The battery pack module according to claim 1, wherein:

in each battery module: an upper terminal head is connected to the center of the upper end of the FPC acquisition board (105), a lower terminal head is fixed to the center of the lower support (103), and the upper terminal head and the lower terminal head are connected through a plurality of acquisition conducting wires; a busbar (104) connected with the total positive of the plurality of cylindrical cells, and a busbar (104) connected with the total negative of the plurality of cylindrical cells, each locked on the upper bracket (102) by a tapping screw (107); the upper terminal head is electrically connected with the total positive and the total negative of the battery module respectively through two collecting wires;

the upper terminal head of each lower battery module is inserted with the lower terminal head of the other battery module adjacent to the upper side.

6. An electric vehicle battery, comprising:

the device comprises a sleeve (2), an upper cover (3) and a lower cover (1), wherein the upper cover (3) is fixedly arranged at the upper end of the sleeve (2), the lower cover (1) is fixedly arranged at the lower end of the sleeve (2), and the sleeve (2), the upper cover (3) and the lower cover (1) enclose a containing cavity;

the battery assembly module (7) according to any one of claims 1 to 5, which is fixedly arranged in the cavity;

and the auxiliary cover (4) is fixedly arranged on the upper cover (3), a plug (6) is arranged on the auxiliary cover (4), and the total positive and the total negative of the battery combination module are respectively and electrically connected to the plug (6).

7. The battery for electric vehicles according to claim 6, wherein the upper cover (3) is further hinged with a rotating handle (5), and the rotating handle (5) is positioned on the side away from the auxiliary cover (4) when being rotatably attached to the upper cover (3).

8. The battery for electric vehicles according to claim 7, wherein the hinge point of the rotating handle (5) and the upper cover (3) is provided on the center line of the upper cover.