CN210136990U - Battery pack heat dissipation device - Google Patents

Abstract

The utility model discloses a group battery heat abstractor, including frame, hot exchange pipe, battery module, connecting rod, evenly arrange the battery module in the frame, the battery module is provided with buffering layering and sealing strip with the side of frame contact, be provided with the baffle between the battery module, it has to encircle in the baffle hot exchange pipe, inlet line and drain pipe are connected respectively to hot exchange pipe both ends, many connecting rods are installed to battery module bottom, the connecting rod passes the frame bottom, with the vehicle frame plate connection, connecting rod cavity and inside packing have graphite alkene powder. The heat exchange tubes are arranged in sequence from top to bottom, and the propylene glycol cooling liquid flows in the heat exchange tubes. The utility model has the advantages of good heat dissipation of the battery module, heat accumulation prevention, prolonged service life of the battery, and reduced deflagration risk; and the structure is simple, the performance is stable, and the cost is low.

Description

Battery pack heat dissipation device

Technical Field

The utility model belongs to electric automobile battery field, concretely relates to group battery heat abstractor.

Background

The power battery pack is a core component of the electric automobile, and the size, the weight, the energy, the safety and the like of the power battery pack have decisive influence on the electric automobile and are bottlenecks for restricting the development of the electric automobile. The battery is used as one of the core components of the electric automobile, the long-term high-temperature discharge has the defect of life attenuation, and potential safety hazards easily exist when heat is not emitted in time, so that accidents such as battery pack combustion are caused. The battery temperature needs to be controlled in a reasonable interval, so that the safety performance, the service life and the driving range of the electric automobile can be ensured.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art exists, the to-be-solved technical problem of the utility model is the heat dissipation problem of group battery.

In order to solve the technical problem, the utility model provides a battery pack heat dissipation device, which comprises an outer frame, a heat exchange pipe, a battery module and a connecting rod,

the battery modules are uniformly distributed in the outer frame, the side surfaces of the battery modules, which are in contact with the outer frame, are provided with buffer pressing strips and sealing strips, a partition plate is arranged between the battery modules, the heat exchange tubes are surrounded in the partition plate, two ends of each heat exchange tube are respectively connected with a liquid inlet tube and a liquid outlet tube,

the battery module is characterized in that a plurality of connecting rods are installed at the bottom of the battery module, the connecting rods penetrate through the bottom of the outer frame and are connected with the frame plate, and the connecting rods are hollow and filled with graphene powder.

Furthermore, the heat exchange tube extends from the left side surface of the outer frame to the right side surface after entering, and is bent back to the right side surface of the outer frame from another group of battery modules after being bent, and the heat exchange tube sequentially penetrates out of the outer frame.

Furthermore, the heat exchange tubes are arranged in a plurality of groups from top to bottom in sequence.

Furthermore, the propylene glycol cooling liquid flows in the heat exchange tube.

The beneficial effects of the utility model are that:

1. the battery module can dissipate heat in time, heat accumulation is prevented, the service life of the battery is prolonged, and the deflagration risk is reduced;

2. the graphene is adopted to introduce heat into the frame plate for heat dissipation, so that the effect is fast;

3. the device has simple structure, stable performance and low cost.

Drawings

Fig. 1 is a schematic top view of a battery pack heat dissipation device according to the present invention;

fig. 2 is a schematic side view of the battery pack heat dissipation device of the present invention.

In the figure: 1. buffering and pressing strips; 2. an outer frame; 3. a sealing strip; 4. a heat exchange tube; 5. a liquid outlet pipe; 6. a liquid inlet pipe; 7. a battery module; 8. a frame plate; 9. a connecting rod; 10. graphene powder.

Detailed Description

The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, a battery pack heat dissipation device comprises an outer frame 2, heat exchange tubes 4, battery modules 7 and a connecting rod 9, wherein the battery modules 7 are uniformly distributed in the outer frame 2, a buffer pressing strip 1 and a sealing strip 3 are arranged on the side surface of the battery modules 7, which is in contact with the outer frame 2, a partition plate is arranged between the battery modules 7, the heat exchange tubes 4 are surrounded in the partition plate, two ends of each heat exchange tube 4 are respectively connected with a liquid inlet tube 6 and a liquid outlet tube 5,

a plurality of connecting rods 9 are installed at the bottom of the battery module 7, the connecting rods 9 penetrate through the bottom of the outer frame 2 and are connected with the frame plate 8, and the connecting rods 9 are hollow and filled with graphene powder 10.

In practical application, the heat exchange tube 4 extends from the left side surface to the right side surface of the outer frame 2 after entering, is bent and then bent back to the right side surface of the outer frame 2 from another group of battery modules 7, and sequentially penetrates out of the outer frame 2.

In practical application, the heat exchange tubes 4 are arranged in a plurality of groups from top to bottom.

In practical application, the propylene glycol cooling liquid flows in the heat exchange tube 4.

The principle of the utility model is as follows: the heat is dissipated from the side surface of the battery module 7 by the coolant, and the coolant dissipates and cools outside the battery module 7. Pack the excellent graphite alkene powder 10 of radiating effect in battery module 7 bottom connecting rod 9, the structure of graphite alkene is very stable, and the connection between the inside carbon atom of graphite alkene is very pliable and tough, and when exerting external force in graphite alkene, the carbon atom face can bending deformation for carbon atom needn't rearrange and adapt to external force, thereby keeps stable in structure, and this kind of stable lattice structure makes graphite alkene have outstanding heat conductivity. Since graphene has very good thermal conductivity, the thermal conductivity of pure defect-free single-layer graphene is as high as 5300W/mK, and the graphene is the carbon material with the highest thermal conductivity so far.

To sum up, the utility model has the advantages that the battery module has good heat dissipation, prevents heat accumulation, prolongs the service life of the battery, and reduces the deflagration risk; and the structure is simple, the performance is stable, and the cost is low.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. The directional indicators such as front, back, left, right, end, front, etc. are only used for describing the structure, but not for limitation. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.

Claims (4)

1. A battery pack heat dissipation device, characterized in that: comprises an outer frame (2), a heat exchange pipe (4), a battery module (7) and a connecting rod (9),

the battery modules (7) are uniformly distributed in the outer frame (2), the buffer pressing strips (1) and the sealing strips (3) are arranged on the side surfaces of the battery modules (7) contacting with the outer frame (2), a partition plate is arranged between the battery modules (7), the heat exchange tubes (4) are surrounded in the partition plate, the two ends of each heat exchange tube (4) are respectively connected with the liquid inlet tube (6) and the liquid outlet tube (5),

many connecting rods (9) are installed to battery module (7) bottom, connecting rod (9) pass frame (2) bottom is connected with frame board (8), connecting rod (9) cavity and inside are filled with graphite alkene powder (10).

2. The battery pack heat sink of claim 1, wherein: the heat exchange tube (4) extends to the right side face from the left side face of the outer frame (2) after entering, is bent back to the right side face of the outer frame (2) from another group of battery modules (7), and sequentially penetrates out of the outer frame (2) after being bent.

3. The battery pack heat sink of claim 1, wherein: the heat exchange tubes (4) are arranged in a plurality of groups from top to bottom.

4. The battery pack heat sink of claim 1, wherein: the propylene glycol cooling liquid flows in the heat exchange tube (4).

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