CN217280963U

CN217280963U - Battery assembly

Info

Publication number: CN217280963U
Application number: CN202220854601.9U
Authority: CN
Inventors: 刘德俊; 杜松显; 卢江涛; 唐伟
Original assignee: Jinyun Ruipu Electronic Technology Co ltd
Current assignee: Jinyun Ruipu Electronic Technology Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-08-23
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a battery component, which relates to the technical field of batteries and comprises battery bodies, wherein adjacent battery bodies are connected in series or in parallel; a thermal insulation layer located between adjacent battery bodies; the heat conduction layers are positioned at two ends of the battery body; the battery body is positioned in the mounting body; and the management component is connected with the battery body. To the technical problem that the radiating efficiency of battery is low, the utility model discloses a technological effect lies in its radiating efficiency height.

Description

Battery assembly

Technical Field

The utility model relates to a battery technology field, concretely relates to battery pack.

Background

The lithium ion battery is a rechargeable battery, mainly depends on lithium ions to move between a positive electrode and a negative electrode to work, and is widely applied to a plurality of fields such as electric tools, electric automobiles, military equipment and the like.

After the chemical substances inside the lithium ion battery reach a certain temperature, irreversible chemical reaction can occur, and a diaphragm inside the lithium ion battery collapses, so that a positive electrode and a negative electrode are short-circuited, the lithium ion battery is ignited, the lithium ion battery is delayed to be burned to the adjacent lithium ion battery, and finally the thermal runaway of the lithium ion battery is caused.

In order to facilitate heat dissipation, the related lithium ion battery is provided with a heat dissipation unit, however, the related heat dissipation unit is often located outside the lithium ion battery, and heat inside the lithium ion battery cannot be effectively dissipated, so that the heat dissipation efficiency of the lithium ion battery is low, and thermal runaway of the lithium ion battery is easily caused.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

To the technical problem that lithium ion battery's radiating efficiency is low, the utility model provides a battery pack, its radiating efficiency is high.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

a battery assembly, comprising:

more than two battery bodies, wherein the adjacent battery bodies are connected in series or in parallel;

a thermal insulation layer located between adjacent battery bodies;

the heat conduction layers are positioned at two ends of the battery body;

a mounting body in which the battery body is located;

and the management component is connected with the battery body.

Optionally, the battery further comprises a fuse link connected to a junction of adjacent battery bodies.

Optionally, the mounting body includes:

the first mounting frame is provided with a first mounting groove;

the second mounting frame is connected with the first mounting frame, and a second mounting groove communicated with the first mounting groove is formed in the second mounting frame;

the shell unit is detachably connected with the first mounting rack and the second mounting rack;

one end of the battery body is located in the first mounting groove, the other end of the battery body is located in the second mounting groove, and one end, far away from the battery body, of the heat conduction layer is in contact with the shell unit.

Optionally, the housing unit includes:

the first shell is detachably connected with the first mounting frame;

the second shell is detachably connected with the second mounting rack;

wherein the first shell and the second shell are both in contact with the heat conducting layer.

Optionally, the heat dissipation device further includes a heat dissipation assembly, where the heat dissipation assembly includes:

the first heat dissipation area is connected to the shell unit, and the first heat dissipation area is opposite to the battery body and the fuse link;

a second heat dissipation area connected to the housing unit;

on the premise that the occupied space is the same, the surface area of the first heat dissipation area is larger than that of the second heat dissipation area.

Optionally, a first limiting part is arranged on the first mounting frame, and a second limiting part matched with the first limiting part is arranged on the second mounting frame.

Optionally, the first heat dissipation area comprises a plurality of first heat dissipation fins connected to the housing unit, the second heat dissipation area comprises a plurality of second heat dissipation fins connected to the housing unit, and the distance between every two adjacent first heat dissipation fins is smaller than the distance between every two adjacent second heat dissipation fins.

Optionally, the fuse link is a ceramic fuse or a glass fuse.

Optionally, the management component is a BMS management component.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect: the heat insulation layer is used for preventing heat transfer between adjacent battery bodies, so that heat of a failed battery body is prevented from being transferred to the adjacent battery body, the adjacent battery body is also failed, and further, delayed combustion, ignition and explosion are caused, and finally, thermal runaway is caused; the heat conduction layer is used for guiding heat generated by the battery body out of two ends of the battery body and preventing the heat from accumulating in the battery body, so that the temperature is increased to the temperature at which the battery body fails; to sum up, through insulating layer and heat-conducting layer, can effectively spill the inside heat of battery pack, improve the radiating efficiency, prevent the emergence of thermal runaway.

Drawings

Fig. 1 is a schematic structural diagram of a battery assembly according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a according to an embodiment of the present invention;

fig. 3 is a schematic view of a partial structure of a battery assembly according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of a battery assembly according to an embodiment of the present invention;

fig. 5 is an enlarged schematic view of B according to an embodiment of the present invention;

in the figure: 1. a battery body; 2. a thermal insulation layer; 3. a heat conductive layer; 4. a fuse link; 5. an installation body; 51. a first mounting frame; 511. a first mounting groove; 52. a second mounting frame; 521. a second mounting groove; 53. a housing unit; 6. a management component; 7. a heat dissipating component; 71. a first heat dissipation area; 711. a first heat sink; 72. a second heat dissipation area; 721. and a second heat sink.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. 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 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 relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; 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. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.

Example 1

With reference to fig. 1-3, the present embodiment provides a battery assembly comprising:

more than two battery bodies 1, the adjacent battery bodies 1 are connected in series or in parallel;

a heat insulating layer 2 between adjacent battery bodies 1;

heat conduction layers 3 positioned at both ends of the battery body 1;

a mounting body 5, the battery body 1 being located within the mounting body 5;

and a management assembly 6 connected to the battery body 1.

Specifically, the battery body 1 is used for supplying electric energy; the heat insulation layer 2 is used for preventing heat transfer between the adjacent battery bodies 1, so that heat of the failed battery body 1 is prevented from being transferred to the adjacent battery body 1, the adjacent battery body 1 is also failed, and further, delayed burning, fire explosion and thermal runaway are caused, wherein the heat insulation layer 2 can be made of heat insulation silica gel and the like; the heat conduction layer 3 is used for guiding heat generated by the battery body 1 out of two ends of the battery body 1 and preventing the heat from accumulating inside the battery body 1, so that the temperature is increased to the temperature at which the battery body 1 fails, wherein the heat conduction layer 3 can be made of heat conduction silica gel or heat conduction silicone grease and the like; the mounting body 5 is used for accommodating the battery body 1, the heat insulation layer 2, the heat conduction layer 3 and the like; the management module 6 may be a BMS management module, and includes a control module, a display module, a wireless communication module, and the like; to sum up, through insulating layer 2 and heat-conducting layer 3, can effectively spill the inside heat of battery pack, improve the radiating efficiency, prevent the emergence of thermal runaway.

Further, the battery pack also comprises a fuse link 4 connected with the joint of the adjacent battery bodies 1.

When the short circuit takes place for adjacent battery body 1, perhaps, when battery body 1 produced a large amount of heats because of failing, fuse-link 4 in time fuses to the connection between the adjacent battery body 1 of disconnection reaches current-limiting and thermal-insulated effect, wherein, fuse-link 4 can be ceramic fuse or glass fuse etc. and for the ease of installation fuse-link 4, the quantity of battery body 1 is two at least, and simultaneously, the concrete quantity of battery body 1 is unrestricted, can be according to manufacturing, factor comprehensive consideration such as cost is decided.

Further, the mounting body 5 includes:

the first mounting frame 51 is provided with a first mounting groove 511;

the second mounting frame 52 is connected with the first mounting frame 51, and a second mounting groove 521 communicated with the first mounting groove 511 is formed in the second mounting frame 52;

the shell unit 53, the shell unit 53 and the first mounting rack 51 and the second mounting rack 52 can be detachably connected;

one end of the battery body 1 is located in the first mounting groove 511, the other end of the battery body 1 is located in the second mounting groove 521, and one end of the heat conduction layer 3, which is far away from the battery body 1, is in contact with the shell unit 53.

Specifically, the first mounting frame 51 is used for bearing the first mounting groove 511, the first mounting groove 511 is used for accommodating the battery body 1, the second mounting frame 52 is used for bearing the second mounting groove 521, the second mounting groove 521 is used for accommodating the battery body 1, and the stability of the battery body 1 can be effectively improved through double accommodation of the first mounting groove 511 and the second mounting groove 521; the housing unit 53 is used for preventing foreign matters such as dust and water mist from entering the mounting body 5, and is detachably connected to facilitate disassembly and assembly, thereby facilitating replacement or maintenance of the battery body 1.

Further, the housing unit 53 includes:

the first shell is detachably connected with the first mounting frame 51;

a second housing detachably connected to the second mounting bracket 52;

wherein the first shell and the second shell are both in contact with the heat conducting layer 3.

Specifically, be convenient for realize the dismouting between mounting bracket one 51 and the casing one to be convenient for change or maintain battery body 1, simultaneously, be convenient for realize the dismouting between mounting bracket two 52 and the casing two, thereby be convenient for change or maintain battery body 1.

Further, still include radiator unit 7, radiator unit 7 includes:

a first heat dissipation area 71 connected to the housing unit 53, the first heat dissipation area 71 being disposed opposite to the battery body 1 and the fuse 4;

a second heat dissipation area 72 connected to the housing unit 53;

on the premise of the same occupied space, the surface area of the first heat dissipation area 71 is larger than that of the second heat dissipation area 72.

Specifically, the first heat dissipation area 71 is mainly used for dissipating heat generated by the two ends of the battery body 1 and the fuse link 4, the second heat dissipation area 72 is mainly used for dissipating heat generated by other areas, and the surface area of the first heat dissipation area 71 is larger than that of the second heat dissipation area 72, so that the heat dissipation effect of the first heat dissipation area 71 is better than that of the second heat dissipation area 72, and the heat dissipation pertinence of the heat dissipation assembly 7 is increased conveniently.

Furthermore, a first limiting portion is arranged on the first mounting frame 51, and a second limiting portion matched with the first limiting portion is arranged on the second mounting frame 52.

Specifically, the first limiting part and the second limiting part are matched, so that the first mounting frame 51 and the second mounting frame 52 can be effectively prevented from moving relatively, wherein the first limiting part is a groove, the second limiting part is a protrusion, or the first limiting part is a protrusion, and the second limiting part is a groove.

Further, the first heat dissipation area 71 includes a plurality of first heat dissipation fins 711 connected to the housing unit 53, the second heat dissipation area 72 includes a plurality of second heat dissipation fins 721 connected to the housing unit 53, and the distance between the adjacent first heat dissipation fins 711 is smaller than the distance between the adjacent second heat dissipation fins 721.

Specifically, the first heat dissipation fins 711 are mainly used for dissipating heat generated by the two ends of the battery body 1 and the fuse link 4, the second heat dissipation fins 721 are mainly used for dissipating heat generated by other areas, and the distance between the adjacent first heat dissipation fins 711 is smaller than the distance between the adjacent second heat dissipation fins 721, so that the surface area of the first heat dissipation area 71 is larger than the surface area of the second heat dissipation area 72 on the premise that the occupied space is the same, the heat dissipation effect of the first heat dissipation area 71 is better than that of the second heat dissipation area 72, and the heat dissipation pertinence of the heat dissipation component 7 is further increased.

Further, the fuse link 4 is a ceramic fuse or a glass fuse.

In particular, the method comprises the following steps of,

further, the management component 6 is a BMS management component.

Specifically, the BMS management module includes control module, display module and wireless communication module etc. for intelligent management battery body 1.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A battery assembly, comprising:

a thermal insulation layer located between adjacent battery bodies;

the heat conduction layers are positioned at two ends of the battery body;

a mounting body in which the battery body is located;

and the management component is connected with the battery body.

2. The battery assembly of claim 1, further comprising a fuse link connected adjacent the cell body connection.

3. The battery assembly of claim 2, wherein the mounting body comprises:

the first mounting frame is provided with a first mounting groove;

4. The battery assembly of claim 3, wherein the housing unit comprises:

the first shell is detachably connected with the first mounting frame;

the second shell is detachably connected with the second mounting rack;

5. The battery assembly of claim 3, further comprising a heat dissipation assembly, the heat dissipation assembly comprising:

a second heat dissipation area connected to the housing unit;

6. The battery pack according to claim 3, wherein a first limiting portion is arranged on the first mounting frame, and a second limiting portion matched with the first limiting portion is arranged on the second mounting frame.

7. The battery pack of claim 5, wherein the first heat dissipation area comprises a plurality of first heat dissipation fins connected to the housing unit, the second heat dissipation area comprises a plurality of second heat dissipation fins connected to the housing unit, and the distance between adjacent first heat dissipation fins is smaller than the distance between adjacent second heat dissipation fins.

8. The battery assembly of claim 2, wherein the fuse link is a ceramic fuse or a glass fuse.

9. The battery assembly of claim 1 or 2, wherein the management assembly is a BMS management assembly.