Heat dissipation device of lithium ion battery power system

Abstract

The utility model provides a heat dissipation device of a lithium ion battery power system, which relates to the technical field of battery heat dissipation, and comprises a power battery pack, heat-conducting fins are fixedly connected to two side surfaces of each single body of the power battery pack, and insert radiators are fixedly connected to the left and right ends of the power battery pack and the heat-conducting fins. Mounting rings are fixed to the positions, located at the upper ends and the lower ends of inserting pieces of the inserting piece radiator, of the inserting piece radiator, heat generated by a power battery pack is rapidly transmitted to the inserting piece radiator through heat conducting pieces, the heat can be further transmitted to the inserting pieces of the inserting piece radiator when transmitted to the inserting piece radiator, and air is fed into an air inlet pipe, an air pipe and a branch pipe through an air pump; and air is finally blown out from the air blowing opening and blows the insertion piece of the insertion piece radiator, so that the effect of producing air convection to quickly take away heat at the insertion piece of the insertion piece radiator is achieved, and the purpose of quickly radiating the power battery pack is achieved.

Description

Technical Field

[0001] This utility model relates to the field of battery heat dissipation technology, and in particular to a heat dissipation device for a lithium-ion battery power system. Background Technology

[0002] A lithium-ion battery power system mainly consists of a lithium-ion battery pack, a battery management system (BMS), a thermal management system, and electrical connection components. The lithium-ion battery pack is the core component of the power system, responsible for storing electrical energy. It is composed of multiple individual cells connected in series. The individual cells use lithium-ion battery technology, which can provide high energy density, high power output, and long life.

[0003] However, existing lithium-ion power battery packs generate heat during normal use. Since they are composed of multiple individual cells, the amount of heat generated is relatively large. However, the heat dissipation structure of a typical lithium-ion power battery pack is relatively simple and may not be able to dissipate heat quickly, causing heat to accumulate slowly and affecting its normal use. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies: the heat dissipation structure of general lithium-ion power battery packs is relatively simple, which may not enable the lithium-ion power battery pack to dissipate heat quickly, resulting in the gradual accumulation of heat at the lithium-ion power battery pack and affecting its normal use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a heat dissipation device for a lithium-ion battery power system, comprising a power battery pack, wherein heat-conducting plates are fixedly connected to both sides of each cell of the power battery pack, and insert heat sinks are fixedly connected to the left and right ends of the power battery pack and the heat-conducting plates, wherein mounting rings are fixedly fixed at the upper and lower ends of the insert heat sinks, and air pipes are inserted and fixedly fixed in the mounting rings, wherein air inlet pipes are fixedly fixedly fixed at the intersection of the front and rear ends of the air pipes, and an air pump is fixedly connected to one end of the air inlet pipes, wherein branch pipes are fixedly fixedly fixedly on the surface of the air pipes at the position between each insert of the insert heat sinks, and air blowing ports are opened on the front and rear sides of the branch pipes.

[0006] In a preferred embodiment, each fin of the finned heat sink is provided with a vent.

[0007] In a preferred embodiment, several air inlets are arranged at equal intervals along the extension direction of the branch pipe.

[0008] In a preferred embodiment, a fixing frame is fixedly connected to the outer surface of the air pump, and one end of the fixing frame is fixedly connected to one side surface of the heat-conducting plate.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] This invention uses a heat-conducting sheet to quickly transfer the heat generated by the power battery pack to the heat sink. When the heat is transferred to the heat sink, it is further conducted to the fins of the heat sink. An air pump supplies air into the intake pipe, air pipe and branch pipe, so that the air is finally blown out from the air outlet and blown onto the fins of the heat sink. This creates air convection and quickly removes the heat from the fins of the heat sink, thus achieving the purpose of rapid heat dissipation of the power battery pack. Attached Figure Description

[0011] Figure 1 A schematic diagram of the overall structure of a heat dissipation device for a lithium-ion battery power system provided by this utility model;

[0012] Figure 2 A schematic diagram of the structure around the air pipe of a heat dissipation device for a lithium-ion battery power system provided by this utility model;

[0013] Figure 3 This utility model provides a schematic diagram of the structure around the heat sink of a lithium-ion battery power system.

[0014] Legend:

[0015] 1. Power battery pack; 2. Heat-conducting fins; 3. Finned radiator; 4. Vent; 5. Mounting ring; 6. Air pipe; 7. Air inlet pipe; 8. Air pump; 9. Branch pipe; 10. Air outlet; 11. Fixture. Detailed Implementation

[0016] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1

[0018] like Figure 1-3As shown, this utility model provides a technical solution: a heat dissipation device for a lithium-ion battery power system, including a power battery pack 1. Each cell of the power battery pack 1 has a heat-conducting plate 2 fixedly connected to both sides. The heat-conducting plate 2 quickly transfers the heat generated by the power battery pack 1 to the heat sink 3, facilitating rapid heat dissipation of the power battery pack 1. Heat sinks 3 are fixedly connected to both the left and right ends of the power battery pack 1 and the heat-conducting plate 2. After being transferred from the heat-conducting plate 2 to the heat sink 3, the heat is further conducted to the fins of the heat sink 3. The gaps between the fins of the heat sink 3 facilitate air circulation, allowing for efficient heat dissipation from the fins to the outside. The heat sink 3 is located at the upper and lower ends of its fins. Each part is fixed with an installation ring 5, and an air pipe 6 is inserted and fixed in the installation ring 5. The installation ring 5 serves to stably install the air pipe 6 on the finned heat sink 3. An air inlet pipe 7 is fixed through the intersection of the front and rear ends of the air pipe 6. An air pump 8 is fixedly connected to one end of the air inlet pipe 7. A branch pipe 9 is fixed through the surface of the air pipe 6 between each fin of the finned heat sink 3. An air blowing port 10 is opened on the front and rear sides of the branch pipe 9. Air is supplied to the air inlet pipe 7, air pipe 6 and branch pipe 9 by the air pump 8, so that the air is finally blown out from the air blowing port 10 and blown on the finned heat sink 3, so as to create air convection and quickly remove the heat from the finned heat sink 3, thereby achieving the purpose of rapid heat dissipation of the power battery pack 1.

[0019] Example 2

[0020] like Figure 1-3 As shown, each fin of the finned heat sink 3 is provided with a vent 4. The vent 4 increases the heat dissipation area of ​​the finned heat sink 3, allowing the air blown out from the air outlet 10 to also circulate in the vent 4, and allowing the air to carry away the heat as it circulates in the vent 4, further improving the heat dissipation efficiency. Several air outlets 10 are arranged at equal intervals along the extension direction of the branch pipe 9. Increasing the number of air outlets 10 is beneficial to allow the air blown out from the air outlets 10 to blow on the surface of the finned heat sink 3. A fixing bracket 11 is fixedly connected to the outer surface of the air pump 8, and one end of the fixing bracket 11 is fixedly connected to one side surface of the heat conduction plate 2. The fixing bracket 11 plays a role in improving the installation stability of the air pump 8.

[0021] Working principle:

[0022] like Figure 1-3As shown, when using this utility model, the user first controls the air pump 8 to turn on when the power battery pack 1 generates heat while supplying power to the outside. Then, the air pump 8 blows air through the air inlet pipe 7, air pipe 6 and branch pipe 9. Finally, the air blows out from the air outlet 10 to blow on the fins of the finned heat sink 3. When the power battery pack 1 generates heat while supplying power, the heat is quickly conducted to the finned heat sink 3 through the heat conduction plate 2. When the heat is transferred to the finned heat sink 3, it is further conducted to the fins of the finned heat sink 3. The air blown out from the air outlet 10 creates air convection at the fins of the finned heat sink 3, quickly carrying away the heat from the fins of the finned heat sink 3, thereby completing the rapid cooling of the power battery pack 1.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A heat dissipation device for a lithium-ion battery power system, comprising a power battery pack (1), characterized in that: The power battery pack (1) has heat-conducting plates (2) fixedly connected to both sides of each cell, and the power battery pack (1) and the heat-conducting plates (2) are fixedly connected to the left and right ends of the heat-conducting plates (2). The heat-conducting plates (3) have mounting rings (5) fixedly connected to the upper and lower ends of the plates. An air pipe (6) is inserted and fixed in the mounting ring (5), and an air inlet pipe (7) is fixedly connected through the intersection of the front and rear ends of the air pipe (6). An air pump (8) is fixedly connected to one end of the air inlet pipe (7). A branch pipe (9) is fixedly connected through the surface of the air pipe (6) between each plate of the heat-conducting plates (3), and an air blowing port (10) is opened on the front and rear sides of the branch pipe (9).

2. The heat dissipation device for a lithium-ion battery power system according to claim 1, characterized in that: Each fin of the finned radiator (3) has a vent (4).

3. The heat dissipation device for a lithium-ion battery power system according to claim 1, characterized in that: The air inlets (10) are arranged at equal intervals along the extension direction of the branch pipe (9).

4. A heat dissipation device for a lithium-ion battery power system according to claim 1, characterized in that: A fixing bracket (11) is fixedly connected to the outer surface of the air pump (8), and one end of the fixing bracket (11) is fixedly connected to one side surface of the heat-conducting plate (2).

Images