CN213124552U

CN213124552U - Cooling device for new energy automobile battery

Info

Publication number: CN213124552U
Application number: CN202021456056.5U
Authority: CN
Inventors: 杨青; 胡淼; 李欣; 陈梓山; 朱红霞; 孔德佳
Original assignee: Shanghai Lingyun Industrial Technology Co ltd Lingyun Automobile Technology Branch
Current assignee: Shanghai Lingyun Industrial Technology Co ltd Lingyun Automobile Technology Branch
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-05-04
Anticipated expiration: 2030-07-22

Abstract

The utility model provides a cooling device for new energy automobile battery, including cooling substrate, inside stuff, limit portion stuff, the inlet tube, the outlet pipe, the cooling substrate is aluminum alloy extruded profile, the cooling substrate is the cavity structure, distribute parallel arrangement's rib in the cavity, the rib is along the length of cooling substrate to setting up, the rib is separated the cavity for several bar cavity, inside stuff seals the tip of corresponding bar cavity and constitutes snakelike cooling water course that flows, limit portion stuff will cool off the both ends of substrate perpendicular and rib and seal. The utility model has the advantages as follows: 1. the cooling substrate is formed simply by adopting an aluminum alloy extrusion profile process, has low cost and high structural strength, and is beneficial to improving the rigidity strength of the whole cooling system; 2. the cooling flow channel is wide, the water cooling contact area is large, and the heat exchange among the flow channels is facilitated; 3. the aluminum alloy cooling substrate has fast heat conduction and balanced temperature difference, thereby improving the temperature uniformity of the battery.

Description

Cooling device for new energy automobile battery

Technical Field

The utility model relates to a cooling device, especially a cooling device for new energy automobile battery.

Background

In recent years, research and development force and industrialization process of global new energy automobiles are obviously improved, and it is predicted that the future 5-10 years will be an important stage of the new energy automobiles entering large-scale industrialization and will drive the vigorous development of the whole industry chain. The power battery system used by the new energy automobile mainly comprises a battery module, a battery shell, other pipelines and a circuit system, wherein the power battery system is a key part of the electric automobile. The charging and discharging efficiency of the power battery is directly related to the performance of the electric automobile. Because the power battery is generally interconversion of chemical energy and electric energy, the charging and discharging efficiency of the power battery is influenced by temperature. The power battery can generate a large amount of heat in the working process, if the heat cannot be dissipated quickly and effectively, the temperature of the power battery can be increased, if the increased temperature exceeds a reasonable temperature range (for example, 25-45 ℃), the efficiency and the service life of the power battery can be reduced, and thermal runaway can be caused in serious conditions, so that safety accidents such as battery fire and even explosion can be caused. Therefore, the electric vehicle is particularly important for cooling the power battery during use. The existing battery pack water-cooling heat dissipation device has various forms, such as copper pipe embedded type, bridging type, high/low temperature brazing type and micro-through pipe type. The water-cooling heat dissipation system with the structure has the problem of small heat dissipation area, and the processing and manufacturing cost and the heat dissipation effect cannot be well considered.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve prior art's problem, provide a cooling device for new energy automobile battery that flows, big heat radiating area and reduction in production cost more.

The problem of the utility model is solved with following technical scheme:

the utility model provides a cooling device for new energy automobile battery, including cooling substrate, inside stuff, limit portion stuff, the inlet tube, the outlet pipe, the cooling substrate is aluminum alloy extruded profile, the cooling substrate is the cavity structure, distribute parallel arrangement's rib in the cavity, the rib is along the length of cooling substrate to setting up, the rib is separated the cavity for several bar cavity, inside stuff seals the tip of corresponding bar cavity and constitutes snakelike cooling water course that flows, limit portion stuff will cool off the both ends of substrate perpendicular and rib and seal.

Above-mentioned a cooling device for new energy automobile battery, the inlet tube is through the water inlet of fast calorie of intercommunication bypass cooling water course, and the outlet pipe is through fast calorie of intercommunication bypass cooling water course delivery port, and inlet tube, outlet pipe are connected with inlet manifold, outlet manifold respectively.

Above-mentioned a cooling device for new energy automobile battery, the tip of inside stuff, limit portion stuff is equipped with the stuff overlap joint platform respectively, and the stuff overlap joint platform and the rib seam of inside stuff, the stuff overlap joint platform and the cooling base plate limit portion seam of limit portion stuff.

The cooling device for the new energy automobile battery is characterized in that four cooling substrates are arranged side by side, and each water outlet pipe is positioned at the corner part of one side of each cooling substrate; each water inlet pipe is positioned at the corner part on the other side of the cooling substrate, which is diagonal to the water outlet pipe.

The utility model has the advantages as follows: 1. the cooling substrate is formed simply by adopting an aluminum alloy extrusion profile process, has low cost and high structural strength, and is beneficial to improving the rigidity strength of the whole cooling system; 2. the flow channel is wide, the water cooling contact area is large, heat exchange among the flow channels is facilitated, the cooling liquid in the cooling substrate forms a multi-time flow-around mode through the plug strips, and the temperature difference of the whole plate can be effectively reduced; 3. the aluminum alloy cooling substrate has fast heat conduction and balanced temperature difference, so that the temperature uniformity of the battery is improved; 4. the filler strip overlap joint platform can reduce welding deformation for friction stir welding provides the support, can also play fine limiting displacement and better play sealed effect.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of a structure for cooling a substrate;

FIG. 3 is a sectional view B-B of FIG. 2 (a longitudinal section of the cooling plate);

FIG. 4 is a cross-sectional view A-A (cross-section of the cooling plate) of FIG. 2;

fig. 5 is a partial enlarged view at C in fig. 3.

The reference numbers in the figures are: 1. cooling base plate, 2, inside stuff, 3, limit portion stuff, 4, inlet tube, 5, fast card, 6, outlet pipe, 7, rib, 8, outlet manifold, 9, inlet manifold, 10, the cooling water course that flows by turns, 11, the stuff overlap-joint platform.

Detailed Description

Referring to fig. 1, the present invention is composed of a plurality of cooling substrates 1, four cooling substrates are used in the illustrated embodiment. Cooling water is introduced into the cooling substrates, a water inlet pipe 4 is arranged at the corner of one side of each cooling substrate, and the water inlet pipe is connected with a water inlet header pipe 9 through a quick clamp; a water outlet pipe is arranged at the corner part of the other side of each cooling substrate and is connected with a water outlet header pipe 8 through a quick clamp; the water inlet pipe and the water outlet pipe are arranged at two ends of a diagonal line of the cooling substrate.

Referring to fig. 2-5, the cooling substrate is an aluminum alloy extruded section, the cooling substrate is a cavity structure, parallel ribs 7 are distributed in the cavity, the ribs are arranged along the length direction of the cooling substrate, and the cavity is divided into a plurality of bar-shaped cavities by the ribs. The end parts of the corresponding strip-shaped cavities are sealed by the internal plugs 2 to form a snake-shaped streaming cooling water channel 10, and the edge plugs 3 seal the two ends of the cooling substrate vertical to the ribs. The embodiment shown in the drawing is provided with four ribs and five strip-shaped cavities in the cooling substrate. The right ends of the first rib and the third rib shown in the figure 3 are sealed by the inner filling strip from top to bottom, and a water passing channel is reserved between the right end of the second rib and the inner filling strip; the left ends of the second rib and the fourth rib are sealed by the other internal plugging strip, and a water channel flows out between the left end of the third rib and the internal plugging strip. The water inlet is positioned at the left end corner, and the water outlet is positioned at the right end corner. The structure forms a snake-shaped streaming cooling water channel in the cooling base plate through the arrangement of the ribs and the internal plugs. The number of ribs and the plugging position of the inner plugging strip can be increased or decreased according to the needs. The end parts of the inner filler strips and the edge filler strips are respectively provided with a filler strip overlapping platform 11, the filler strip overlapping platform of the inner filler strips is welded with the ribs, and the filler strip overlapping platform of the edge filler strips is welded with the edge part of the cooling substrate. The arrangement of the filler strip lapping table can provide support for friction stir welding and reduce welding deformation; on the other hand, the stopper can play a good limiting role, and the situation that the stopper cannot be taken out when entering the inside of the water-cooling plate section bar is prevented; and moreover, the sealing function can be better realized. Two sides of the cooling substrate are of solid structures, and threaded holes and pin holes for installing battery packs are distributed on the solid sides.

The utility model is arranged between the battery pack shell and the module when in use, the aluminum alloy cooling substrate has fast heat conduction and balanced temperature difference, and can improve the temperature uniformity of the battery; the cooling water channel formed by the ribs and the plug strips has large heat exchange area and good cooling effect; the base plate is made of aluminum alloy extruded section with low production cost.

Claims

1. A cooling device for new energy automobile battery which characterized in that: including cooling base plate (1), inside stuff (2), limit portion stuff (3), inlet tube (4), outlet pipe (6), the cooling base plate is aluminum alloy extruded profile, the cooling base plate is the cavity structure, distribute parallel arrangement's rib (7) in the cavity, the rib is along the length of cooling base plate to setting up, the rib is separated the cavity for several bar cavity, inside stuff seals the tip of corresponding bar cavity and constitutes snakelike cooling water course (10) that flows around, limit portion stuff seals the both ends of cooling base plate perpendicular and rib.

2. The cooling device for the new energy automobile battery according to claim 1, characterized in that: the inlet tube is through fast card (5) intercommunication bypass cooling water course's water inlet, and the outlet pipe is through fast card intercommunication bypass cooling water course delivery port, and inlet tube, outlet pipe are connected with inlet manifold (9), outlet manifold (8) respectively.

3. The cooling device for the new energy automobile battery according to claim 2, characterized in that: the tip of inside stuff bar, limit portion stuff bar is equipped with stuff bar overlap joint platform (11) respectively, and the stuff bar overlap joint platform and the rib seam of inside stuff bar, the stuff bar overlap joint platform and the cooling substrate limit portion seam of limit portion stuff bar.

4. The cooling device for the new energy automobile battery according to claim 3, characterized in that: four cooling substrates are arranged side by side, and each water outlet pipe is positioned at the corner part of one side of each cooling substrate; each water inlet pipe is positioned at the corner part on the other side of the cooling substrate, which is diagonal to the water outlet pipe.