CN206441785U - A kind of battery tray radiator structure - Google Patents

Abstract

The utility model provides a heat dissipation structure for a battery tray, which belongs to the technical field of new energy vehicles. It includes a tray body, inside the tray body there is a heat dissipation channel for cooling liquid flow, the two ends of the adjacent heat dissipation channels are respectively connected in series through heat dissipation copper tubes, and a liquid inlet and a liquid outlet are formed through the heat dissipation channel. Circulation, the heat is directly transferred to the coolant in the heat dissipation channel through the tray body, and the heat is dissipated through the flow of the coolant, which reduces the phenomenon of slow heat loss caused by multi-media transmission of heat, which is beneficial to effectively control the temperature of multiple battery modules, and the battery tray dissipates heat The structure is integrally formed, which can be used as a supporting structure and a heat dissipation structure, which improves the utilization rate of the battery pack space. No longer using a liquid-cooled plate structure can reduce the risks brought by the welding process, and reduce the corresponding tooling, fixtures and labor costs. .

Description

A heat dissipation structure for a battery tray

technical field

The utility model relates to the technical field of new energy vehicles, in particular to a heat dissipation structure for a battery tray.

Background technique

As we all know, the power battery pack is one of the core components of electric vehicles, and its safety performance and endurance performance have attracted much attention. Among them, it is essential to install a cooling system on the power battery pack, which can cool the power battery pack. , to prevent the battery from overheating and causing danger.

At present, the existing power battery packs generally include a tray for installation on an electric vehicle and a number of battery modules installed in the tray. The battery module includes a housing and a number of cells installed in the housing. A battery; wherein, the cooling system thereof includes a liquid cooling plate, the liquid cooling plate is arranged on the tray, and then the battery module is placed on the liquid cooling plate. The existing liquid cooling plate is generally brazed by two layers of metal plates, and the liquid cooling plate is connected with the inlet and outlet pipes of the cooling liquid through brazing. Or include multiple liquid cold plate modules to put together. The above-mentioned cooling method of installing a liquid-cooled plate in the power battery pack requires additional arrangement of a liquid-cooled plate, and the structural form of the separation of the liquid-cooled plate from the battery pack tray may cause vibration and torsion of the liquid-cooled plate during driving. failure and leakage; and because there are many tailor-welded parts, it is necessary to develop molds, not only the number of developed molds is large, but also the corresponding inspection tools and welding fixtures need to be developed after all sheet metal parts are punched out After that, it is necessary to configure corresponding production lines and personnel for welding, which requires a lot of manpower and material resources. During the welding process, defects such as missing welding and welding errors often occur, and product quality is difficult to guarantee.

Utility model content

An object of the present invention is to provide a heat dissipation structure for a battery tray, which is only a single component, so that the space of the battery pack is increased and more rationally utilized, and the structure is simple to reduce the manufacturing process of the battery tray heat dissipation system.

In particular, the utility model provides a heat dissipation structure for a battery tray, including a tray body, in which there are several heat dissipation channels arranged in parallel for the flow of cooling liquid, and the plurality of heat dissipation channels are the tray body Channels reserved during integral molding; two ends of adjacent heat dissipation channels are connected through heat dissipation copper pipes, and the plurality of heat dissipation channels have a liquid inlet and a liquid outlet.

Further, the tray body is made of aluminum.

Further, at least two side walls are provided on the tray body, and the side walls are provided with flashes parallel to the tray body.

Further, a U-groove parallel to the side wall is provided on the upper surface of the flash edge.

Further, a boss is provided on the inner bottom surface of the tray body.

Further, at least one through hole is provided in the inner area of the boss.

Further, the ends of the several heat dissipation channels are provided with threads.

Further, the number of the plurality of cooling channels is four, and they are arranged in parallel and distributed within the width range of the boss.

Further, the size of the tray body is larger than that of the battery module.

In the heat dissipation structure of the battery tray of the utility model, a heat dissipation channel is directly arranged on the tray body, and the heat is directly transmitted to the cooling liquid in the heat dissipation channel, which reduces the phenomenon of slow loss of heat in multi-media transmission, and is beneficial to effectively control multiple battery modules temperature.

Furthermore, the heat dissipation structure of the battery tray of the present invention is integrally formed, which reduces the structural space and can be used as a heat dissipation structure to improve the utilization rate of the battery pack space, effectively reduces the weight of the system, and does not use the liquid cold plate structure to reduce the welding process Risks brought about by reducing the corresponding tooling fixtures and labor costs.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a front isometric side view of a battery tray heat dissipation structure with heat dissipation pipes according to an embodiment of the present invention;

Fig. 2 is a cross-sectional view of the heat dissipation structure of the battery tray according to an embodiment of the present invention;

Fig. 3 is a front isometric side view of the heat dissipation structure of the battery tray according to an embodiment of the present invention.

detailed description

Fig. 1 is a front isometric side view of a battery tray heat dissipation structure with heat dissipation pipes according to an embodiment of the present invention. Fig. 2 is a cross-sectional view of the heat dissipation structure of the battery tray according to an embodiment of the present invention. Fig. 3 is a front isometric side view of the heat dissipation structure of the battery tray according to an embodiment of the present invention. It will be described as follows with reference to FIG. 1 to FIG. 3 .

The utility model provides a heat dissipation structure for a battery tray, which includes a tray body 1, inside the tray body 1 there are several heat dissipation channels 2 arranged in parallel for the flow of cooling liquid, and several heat dissipation channels 2 are formed when the tray body is integrally formed. As for the reserved channels, several heat dissipation channels 2 have a liquid inlet 4 and a liquid outlet 5, and the two ends of the adjacent heat dissipation channels are respectively connected through heat dissipation copper pipes 3, and the tray body is made of a material with good thermal conductivity. In this embodiment, the tray body 1 is made of aluminum, and the tray body 1 can be formed at one time by using an aluminum extrusion process. Several heat dissipation channels 2 are directly arranged in the tray body 1, so the tray body 1 serves as both a supporting structure and a heat dissipation structure. , which improves the utilization rate of the battery pack space and effectively reduces the weight of the system structure. The compact structure not only meets the heat dissipation requirements of the battery module but also plays a role in supporting the battery module. Of course, the tray body 1 can also be used Other heat dissipation materials and processes well known to those skilled in the art. When connecting several heat dissipation channels 2, one liquid inlet 4 and one liquid outlet 5 are reserved, and the other heat dissipation channels are connected in series with heat dissipation copper tubes 3. The coolant flows in a large area in the tray body 1 to play a role in heat dissipation. Of course Yes, the heat dissipation copper pipe 3 can also be other material structure dredging device, the heat dissipation structure of the battery tray is simple in process, compact in structure, simple and safe in assembly.

Specifically, at least two side walls 6 are provided on the tray body 1, and the side walls 6 extend upward along the sides of the tray body perpendicular to the bottom of the tray body 1, and the side walls 6 are provided with flashes 7 parallel to the tray body. The edge 7 extends outward away from the tray body 1, and a U-groove 9 parallel to the side wall is arranged on the upper surface of the flash edge 7, and the thickness of the U-groove 9 close to the side wall is consistent with the thickness of the side wall 6.

The inner bottom surface of the tray body 1 is provided with a boss 8, which can be used as a reminder of the location of the battery module and can also strengthen the structural strength of the tray body. At least one through hole 10 is provided in the inner area of the boss 8, and the bolt fixes the battery module through the through hole 10. In this embodiment, eight through holes 10 are arranged in the inner area of the boss 8, and the battery module fixed. The through holes are only used to fix the battery module by bolts. Of course, different numbers of through holes can be set to fix the battery module according to the size of the battery module during actual production.

Further, threads 11 are provided at the ends of several cooling channels 2 .

Further, the size of the tray body is larger than the size of the battery module.

In a specific embodiment, the number of several heat dissipation channels 2 is four, and they are arranged in parallel and distributed within the width range of the boss 8, and the several heat dissipation channels 2 are higher than the bottom surface of the tray body 1. The form of round pipes is distributed on the bottom surface of the tray body 1, and threads 11 are provided at the ends of several heat dissipation channels 2, and a butt joint pipe is connected to a liquid inlet 4 and a liquid outlet 5 of several heat dissipation channels 2, and the opposite Both ends of the connecting pipe are provided with external threads, and its function is to connect several heat dissipation channels 2 at one end, and the coolant delivery device at one end, and connect several heat dissipation channels 2 in series with heat dissipation copper pipes 3 to play the role of coolant conduction . Several heat dissipation channels 2 and heat dissipation copper pipes 3 are connected to conduct the coolant without overflowing. In actual production, several heat dissipation channels 2 and heat dissipation copper pipes 3 can also use other fastening structures thought of by those skilled in the art. to realize the connection.

The utility model provides a heat dissipation structure for a battery tray. A heat dissipation channel is directly arranged on the tray body, and the heat is directly transmitted to the cooling liquid in the heat dissipation channel, which reduces the phenomenon of slow loss of heat in multi-media transmission, and is conducive to effective control of multiple groups. The temperature of the battery module.

Furthermore, the heat dissipation structure of the battery tray of the present invention is integrally formed, which reduces the structural space, and can be used as a supporting structure as well as a heat dissipation structure, which improves the utilization rate of the battery pack space, effectively reduces the weight of the system, and no longer uses liquid cooling The plate structure can reduce the risk caused by the welding process, and reduce the corresponding tooling, fixtures and labor costs.

So far, those skilled in the art should recognize that, although the exemplary embodiments of the present invention have been shown and described in detail herein, they can still be disclosed according to the present invention without departing from the spirit and scope of the present invention. Many other variants or modifications conforming to the principle of the utility model are directly determined or derived from the content. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (9)

1. having in a kind of battery tray radiator structure, it is characterised in that including tray body, the tray body is used to cool down Some heat dissipation paths of the distribution arranged in parallel of liquid flowing, some heat dissipation paths are that the tray body is integrally formed The passage reserved during manufacture；The adjacent heat dissipation channel two ends are connected by heat dissipation copper pipe respectively, and some radiatings are logical Road has an inlet and a liquid outlet.

2. battery tray radiator structure according to claim 1, it is characterised in that the tray body material is aluminium.

3. battery tray radiator structure according to claim 2, it is characterised in that be provided with least in the tray body Two side walls, the side wall is provided with the overlap parallel to the tray body.

4. battery tray radiator structure according to claim 3, it is characterised in that be provided with the overlap upper surface flat Row is in the U grooves of the side wall.

5. battery tray radiator structure according to claim 3, it is characterised in that the tray body inner bottom surface is provided with Boss.

6. battery tray radiator structure according to claim 5, it is characterised in that set at least in the boss inner region 1 through hole.

7. battery tray radiator structure according to claim 1, it is characterised in that some heat dissipation paths ends are set There is screw thread.

8. battery tray radiator structure according to claim 7, it is characterised in that some heat dissipation paths quantity are 4, and arranged in parallel be distributed in the range of projection width.

9. the battery tray radiator structure according to any one of claim 1-8, it is characterised in that the tray body Size is more than the size of battery modules.