Heat dissipation structure of power supply battery pack

Abstract

The invention relates to the technical field of heat dissipation of power battery packs, in particular to a heat dissipation structure of a power battery pack, which comprises a shell, a water storage frame, bolts and the like, the shell is provided with two heat dissipation structures which are symmetrically arranged, and each heat dissipation structure is composed of a plurality of heat dissipation grooves which are arranged at equal intervals; the shell is connected with two symmetrically-arranged water storage frames through torsion spring rotating shafts. Bolts are inserted into the lower part of each water storage frame and the shell; the two water storage frames are each provided with a water storage cavity. The water storage cavity is formed in the water storage frame, water is stored in rainy days, and when the water storage cavity is full of rainwater, the water storage frame rotates to be attached to the shell, so that the heat dissipation grooves are sealed, and the situation that the rainwater enters the shell from the heat dissipation grooves and damages the power battery pack is reduced; the process does not need user interference, and even if the user is not on site for some reason, the heat dissipation groove can be automatically sealed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power battery pack heat dissipation, in particular to a power battery pack heat dissipation structure. BACKGROUND

[0002] The power supply is usually composed of a battery pack, a shell and a heat dissipation structure, and the heat dissipation structure is used to dissipate the heat generated during the use of the power supply to the outside, so as to ensure the stable operation of the battery pack; in the prior art, the heat dissipation structure is usually a heat dissipation groove or hole opened on the shell, which causes rainwater to easily enter the shell through the heat dissipation groove or hole on the shell and contact the battery pack when the power supply is used outdoors and in rainy days, resulting in damage to the battery pack and safety hazards and equipment failures. SUMMARY

[0003] In order to overcome the shortcomings that rainwater easily enters the shell through the heat dissipation groove or hole on the shell and contacts the battery pack when the power supply is used outdoors and in rainy days, resulting in damage to the battery pack and safety hazards and equipment failures, the present application provides a power battery pack heat dissipation structure.

[0004] Technical scheme: a power battery pack heat dissipation structure, comprising a shell, further comprising a water storage frame and a latch, two symmetrical heat dissipation structures are opened on the shell, each heat dissipation structure is composed of a plurality of equidistant heat dissipation grooves, two symmetrical water storage frames are connected to the shell through torsion springs, a latch is inserted into the lower part of each water storage frame and the shell, and one water storage cavity is arranged on each water storage frame.

[0005] Further explanation, a filter screen is arranged on each heat dissipation groove.

[0006] Further explanation, a handle is arranged on the upper part of the shell.

[0007] Further explanation, the end of the latch towards the shell is tapered.

[0008] Further explanation, the water storage frame is made of heat-conducting metal material.

[0009] Further explanation, the water storage frame is made of heat-conducting metal material.

[0010] Further explanation, further comprising a water baffle and a flow guide plate, two symmetrical water baffles are fixedly connected to the upper side of the shell, two symmetrical flow guide plates are fixedly connected to the upper side of the shell, the two water baffles are in contact with the two flow guide plates, and the two flow guide plates are located above one water storage frame.

[0011] Further, the T-shaped movable plate is further provided on the two water storage frames, and a plurality of water outlets are formed on each of the T-shaped movable plates.

[0012] Further, the baffle is further provided on the two water storage frames, and the baffle is arranged in an inclined manner, and a plurality of grooves are formed on the baffle.

[0013] Further, the heat-conducting metal plate is further provided on the water storage frame, and a plurality of heat-conducting metal plates are arranged on the water storage frame.

[0014] The beneficial effects of the present application are as follows: 1. The water storage cavity is arranged on the water storage frame to store water in rainy days, and when the water storage cavity is filled with water, the water storage frame is rotated to abut against the shell to close the heat dissipation groove, so that the rainwater is prevented from entering the shell through the heat dissipation groove to damage the power battery pack. The above process does not require user intervention, and even if the user is not present due to some reasons, the heat dissipation groove can be automatically closed.

[0015] 2. The water baffle and the flow guide plate are arranged on the upper side of the shell, and the rainwater falling on the upper side of the shell is blocked and drained by the water baffle and the flow guide plate, and flows into the water storage cavity on the water storage frame, so as to accelerate the water storage speed, and then accelerate the rotation of the water storage frame to abut against the shell to close the heat dissipation groove.

[0016] 3. When the power battery pack is started in the ice and snow environment, the snow or ice block can be filled into the water storage cavity, and under the action of the gravity of the snow or ice block, the water storage frame remains in the vertical state and abuts against the shell to close the heat dissipation groove, which helps to maintain the working efficiency. When the battery is abnormally overheated, the heat will cause the snow or ice block in the water storage cavity to melt into water. After the snow or ice block is melted, the water storage frame is rotated upward to expand to the horizontal state, so that the heat dissipation groove is opened to dissipate heat. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure diagram of the heat dissipation structure of the power battery pack of the present application. Figure 2 It is a schematic diagram of the position of the plug pin of the present application. Figure 3 It is a three-dimensional structure diagram of the shell of the present application. Figure 4 It is a working state diagram of the water storage frame of the present application. Figure 5 It is a three-dimensional structure sectional view of the combination of the water storage frame, the T-shaped movable plate and the baffle of the present application. Figure 6A schematic view of a three-dimensional structure of the heat-conducting metal plate of the present application.

[0018] In the above drawings: 1 - shell, 101 - heat dissipation groove, 2 - water storage frame, 201 - water storage cavity, 202 - water receiving surface, 203 - water outlet one, 3 - latch, 21 - T-shaped movable plate, 2101 - water outlet two, 22 - water baffle, 23 - guide plate, 31 - baffle, 3101 - groove, 32 - heat-conducting metal plate. DETAILED DESCRIPTION

[0019] The present application will now be described more fully hereinafter with reference to the accompanying drawings, in which currently preferred embodiments of the application are shown. The application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of thorough and complete disclosure of the application and are fully presented by the scope of the application to those skilled in the art.

[0020] Example 1: A heat dissipation structure of a power battery pack, as shown in the figure, comprising a shell 1; Figures 1-6 Further comprising a water storage frame 2 and a latch 3; the shell 1 is provided with two symmetrically arranged heat dissipation structures, each of which is composed of a plurality of equidistantly arranged heat dissipation grooves 101; the shell 1 is connected to two symmetrically arranged water storage frames 2 through torsion spring shafts; each water storage frame 2 is inserted with a latch 3 at the lower part of the shell 1; and each water storage frame 2 is provided with a water storage cavity 201. In order to prevent impurities from entering the inside of the shell 1, each heat dissipation groove 101 is provided with a filter screen.

[0021] In order to facilitate transportation, a handle is arranged at the upper part of the shell 1.

[0022] In order to facilitate the insertion of the latch 3 into the water storage frame 2 and the shell 1, the end of the latch 3 facing the shell 1 is tapered.

[0023] Each water storage frame 2 is provided with an inclined water receiving surface 202, and the end of the water receiving surface 202 facing the shell 1 is lower when the water storage frame 2 is unfolded to a horizontal state.

[0024] In order to facilitate the absorption of heat emitted by the power battery pack, the water storage frame 2 is made of heat-conducting metal material, such as steel.

[0025] Further comprising a water baffle 22 and a guide plate 23; two symmetrically arranged water baffles 22 are welded to the upper side of the shell 1; two symmetrically arranged guide plates 23 are welded to the upper side of the shell 1; the two water baffles 22 are in contact with the two guide plates 23; and the two guide plates 23 are located above one water storage frame 2.

[0026]

[0027] ​The T-shaped movable plate 21 is also included; two water storage frames 2 are respectively connected with a T-shaped movable plate 21 through sliding; five water outlets one 203 are respectively formed on each water storage frame 2; five water outlets two 2101 are respectively formed on each T-shaped movable plate 21; and each water outlet one 203 corresponds to a water outlet two 2101.

[0028] In use, the battery pack is installed in the shell 1, and the shell 1 is carried and placed at a use site by a person, and then the two pins 3 are pulled out from the water storage frame 2 and the shell 1, and under the action of the torsion spring rotating shaft between the water storage frame 2 and the shell 1, the water storage frame 2 is turned upward to expand to a horizontal state, so that the heat dissipation groove 101 is opened, as shown in Figure 4 Thus, when the battery pack is used, heat can be dissipated through the heat dissipation groove 101 to maintain a stable working state, and at this time, the water storage frame 2 can play a role in shading to reduce the area of the shell 1 directly irradiated by sunlight, thereby reducing the additional heat added to the shell 1 by solar radiation, thereby playing a role in assisting to reduce the temperature of the shell 1 and improving the heat dissipation efficiency thereof.

[0029] When used outdoors and in rainy weather, rainwater is easily blown horizontally by the wind and then easily enters the shell 1 through the heat dissipation groove 101 to cause damage to the power battery pack; therefore, the water storage cavity 201 is arranged on the water storage frame 2, and after the rainwater falls on the water storage frame 2, it flows to the water storage cavity 201 of the water storage frame 2, and when the water storage cavity 201 is filled with rainwater, the gravity of the rainwater is sufficient to overcome the torsion of the torsion spring rotating shaft connecting the water storage frame 2 and the shell 1, and under the action of the gravity of the rainwater, the water storage frame 2 is turned downward around the torsion spring rotating shaft connecting the water storage frame 2 and the shell 1, so that the water storage frame 2 is attached to the shell 1, thereby closing the heat dissipation groove 101, as shown in Figure 1 At this time, the rainwater is still in the water storage cavity 201, so that the water storage frame 2 is always attached to the shell 1, thereby reducing the damage of the rainwater entering the shell 1 from the heat dissipation groove 101 to the power battery pack; the above process does not require user intervention, and even if the user is not present due to some reason, the heat dissipation groove 101 can be automatically closed.

[0030] In rainy days, only the rainwater falling on the water storage frame 2 near the shell 1 part will flow into the water storage cavity 201, the water storage speed is slow, the speed of closing the heat dissipation groove 101 is slow, a large amount of rainwater will enter the shell 1 from the heat dissipation groove 101 before the heat dissipation groove 101 is closed; in order to speed up the speed of closing the heat dissipation groove 101, the two water storage frames 2 are provided with inclined water receiving surfaces 202, the end of the water receiving surface 202 towards the shell 1 is lower when the water storage frame 2 is unfolded to be horizontal, so the water falling on the water receiving surface 202 will also flow into the water storage cavity 201, thereby speeding up the water storage speed, and further speeding up the rotation of the water storage frame 2 to be close to the shell 1, thereby closing the heat dissipation groove 101; and the water baffle 22 and the flow guide plate 23 are arranged on the upper side of the shell 1, the rainwater falling on the upper side of the shell 1 is blocked and guided by the water baffle 22 and the flow guide plate 23 to flow into the water storage cavity 201 on the water storage frame 2, thereby further speeding up the water storage speed, and further speeding up the rotation of the water storage frame 2 to be close to the shell 1 to close the heat dissipation groove 101.

[0031] After the water storage frame 2 is rotated to be close to the shell 1 to close the heat dissipation groove 101, the heat dissipation of the power battery group in the shell 1 will be affected; therefore, the T-shaped movable plate 21 is arranged on the water storage frame 2, when the water storage frame 2 is unfolded to be horizontal, the protruding part of the T-shaped movable plate 21 is in contact with the water storage frame 2, the T-shaped movable plate 21 closes the water outlet one 203, the lower part of the T-shaped movable plate 21 protrudes from the water storage frame 2, as shown in Figure 5 , the water storage cavity 201 can normally store water, when the water storage frame 2 is rotated to be close to the shell 1, the T-shaped movable plate 21 first contacts the shell 1, then the water storage frame 2 is rotated to be close to the shell 1, finally the water outlet one 203 coincides with the water outlet two 2101, as shown in Figure 6 , so the water in the water storage cavity 201 will flow out through the water outlet one 203 and the water outlet two 2101, at the same time, the rainwater falling on the upper side of the shell 1 is always supplemented into the water storage cavity 201 through the flow guide plate 23, so the water in the water storage cavity 201 is always in a flowing state, the heat emitted by the power battery group is radiated to the water storage frame 2, the heat on the water storage frame 2 is taken away by the flowing water, thereby achieving the heat dissipation effect of the power battery group; it is explained that compared with the water in a static state, the water in a flowing state can quickly take away the heat of the power battery group, and the heat dissipation effect is better; when the rain stops, the rainwater is no longer supplemented into the water storage cavity 201, after the water in the water storage cavity 201 flows out through the water outlet one 203 and the water outlet two 2101, under the action of the torsion spring rotating shaft between the water storage frame 2 and the shell 1, the water storage frame 2 is upwardly rotated to be unfolded to be horizontal, so that the heat dissipation groove 101 is opened, as shown in Figure 4 , so when the power battery group is used, the heat can be dissipated through the heat dissipation groove 101 to be removed, so as to maintain a stable working state; the heat dissipation groove 101 is automatically opened when it rains to stop, so that the power battery group can normally dissipate heat.

[0032] Example 2: Based on example 1, as shown, also includes a baffle 31; two water storage frame 2 respectively welded with a baffle 31, each baffle 31 is set to be inclined, the upper part of the baffle 31 is away from the water storage frame 2; Each baffle 31 is respectively provided with three grooves 3101. Figures 4-6

[0033] Also includes a heat-conducting metal plate 32; Each water storage frame 2 is respectively welded with three heat-conducting metal plates 32; All the heat-conducting metal plates 32 are located in the water storage cavity 201.

[0034] In the ice and snow environment, when the power battery pack is started, it is helpful to maintain the working efficiency because the closed structure can reduce the internal heat loss, delay the electrolyte thickening and internal resistance rising phenomenon caused by low temperature, and ensure the stability of output voltage and capacity; Therefore, when preparing to start the power battery pack, fill the snow or ice block into the water storage cavity 201, and set the baffle 31 to form an expanded V-shaped with the water storage frame 2, so that it is easier to fill the snow or ice block into the water storage cavity 201; Then pull out the bolt 3, under the gravity of the snow or ice block, the water storage frame 2 remains vertical state, abutting against the shell 1 to close the heat dissipation groove 101, which is helpful to maintain the working efficiency. As the power battery pack works, when the heat emitted by the power battery pack gradually increases, the heat is radiated to the water storage frame 2, and when the battery is abnormally overheated, the heat will cause the snow or ice block in the water storage cavity 201 to melt into water, and the melted water flows out from the water outlet one 203 and the water outlet two 2101. After the snow or ice block melts, under the action of the torsion spring shaft between the water storage frame 2 and the shell 1, the water storage frame 2 rotates upward to expand to a horizontal state, so that the heat dissipation groove 101 is opened to dissipate heat; Even if the user is not on site for some reason, when starting the power battery pack, the heat dissipation groove 101 is closed, which is helpful to maintain the working efficiency. After working for a period of time, the heat dissipation groove 101 is automatically opened to dissipate heat, avoiding damage caused by overheating of the power battery pack; It is explained that the baffle 31 is provided with grooves 3101, and the rainwater falling on the water receiving surface 202 flows into the water storage cavity 201 through the grooves 3101.

[0035] The heat-conducting metal plate 32 is arranged on the water storage frame 2, the heat-conducting metal plate 32 is located in the water storage cavity 201, and the heat-conducting metal plate 32 increases the contact area between the water storage frame 2 and the snow or ice block. When the power battery pack is overheated, the heat of the power battery pack is more quickly conducted to the snow or ice block, the melting of the snow or ice block is accelerated, and the opening speed of the heat dissipation groove 101 is accelerated, so that the power battery pack is quickly cooled, avoiding damage caused by overheating, and when closed in rainy days, the heat-conducting metal plate 32 also facilitates the contact of heat and rainwater, improves heat transfer, and improves the heat dissipation effect.

[0036] ​The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as falling within the protection scope of the present application.

Claims

1. A heat dissipating structure of a power battery pack, comprising a housing (1); characterized in that: It also includes water storage frame (2) and bolt (3); the shell (1) is provided with two symmetrical heat dissipation structures, each heat dissipation structure is composed of a plurality of equidistantly arranged heat dissipation grooves (101); the shell (1) is connected with two symmetrical water storage frames (2) through torsion spring shaft; each water storage frame (2) is inserted with a bolt (3) at the lower part of the shell (1); two water storage frames (2) are respectively provided with one water storage cavity (201).

2. The heat dissipating structure of a power battery pack according to claim 1, characterized in that: Each heat dissipation groove (101) is provided with a filter screen.

3. The heat dissipating structure of a power battery pack according to claim 1, characterized in that: The upper part of the shell (1) is provided with a handle.

4. The heat dissipating structure of a power battery pack according to claim 1, characterized by: The end of the bolt (3) towards the shell (1) is tapered.

5. The heat dissipating structure of a power battery pack according to claim 1, characterized by: Two water storage frames (2) are provided with inclined water receiving surfaces (202), and the end of the water receiving surface (202) towards the shell (1) is lower when the water storage frame (2) is unfolded horizontally.

6. The heat dissipating structure of a power battery pack according to claim 1, characterized by: The water storage frame (2) is made of heat-conducting metal material.

7. The heat dissipating structure of a power battery pack according to claim 1, characterized by: It also includes a water baffle (22) and a guide plate (23); the upper side of the shell (1) is fixedly connected with two symmetrical water baffles (22); the upper side of the shell (1) is fixedly connected with two symmetrical guide plates (23); two water baffles (22) are in contact with two guide plates (23); two guide plates (23) are located above one water storage frame (2).

8. The heat dissipating structure of a power battery pack according to claim 1, characterized by: It also includes a T-shaped movable plate (21) slidingly connected to the water storage frame (2); each water storage frame (2) is provided with a plurality of water outlets one (203); each T-shaped movable plate (21) is provided with a plurality of water outlets two (2101); each water outlet one (203) corresponds to one water outlet two (2101).

9. A heat dissipating structure for a power supply battery pack according to claim 8, characterized by: It also includes a baffle (31) fixedly connected to the water storage frame (2), each baffle (31) is inclined, and the upper part of the baffle (31) is away from the water storage frame (2); each baffle (31) is provided with a plurality of grooves (3101).

10. The heat dissipating structure of a power battery pack according to claim 9, characterized by: It also includes a plurality of heat-conducting metal plates (32) fixedly connected to the water storage frame (2); all the heat-conducting metal plates (32) are located in the water storage cavity (201).

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