Lithium battery mounting box with stable structure

Abstract

The utility model discloses a lithium battery mounting box with a stable structure, which comprises an outer box, a box cover is fixedly mounted on the upper surface of the outer box through bolts, an air inlet filter screen and an exhaust filter screen are fixedly mounted on the outer surfaces of two sides of the outer box, and a cooling fan is fixedly mounted on the inner side surface of one end, where the air inlet filter screen is located, of the outer box. A connecting pole is arranged on the upper surface of the box cover, a lithium battery pack is mounted in the outer box, a locking mechanism is arranged in the outer box, and the lithium battery pack is pressed and locked by closing the outer box through the box cover. According to the lithium battery mounting box with the stable structure, the box cover and the outer box are fixedly mounted and then extrude the pressure rod, so that the pressure rod can push out the limiting rod through oil pressure, and the lithium battery pack is fixed after the box cover is mounted by clamping the limiting rod with the upper end of the lithium battery pack after the limiting rod is pushed out; therefore, the lithium battery pack can be taken out without disassembling the lithium battery pack after the box cover is disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery installation box with a stable structure. Background Art

[0002] New energy technology is recognized as the high-tech of the 21st century. As an important part of the new energy field, the battery industry has become a new hot spot for global economic development. The three characteristics of the current development of the world's battery industry are: first, the rapid development of green and environmentally friendly batteries, including lithium-ion batteries, nickel-hydrogen batteries, etc.; second, the transformation of primary batteries into batteries, which is in line with the sustainable development strategy; third, the battery is further developed in the direction of being small, light and thin. Lithium-ion batteries are a new type of battery developed on the basis of lithium batteries. They are mainly composed of positive electrodes, negative electrodes, electrolytes, electrode substrates, isolation membranes and can materials. Among commercial rechargeable batteries, lithium-ion batteries have the highest specific energy, especially polymer lithium-ion batteries, which can achieve the thinness of rechargeable batteries, which is relatively Compared with traditional lead-acid batteries, nickel-metal hydride batteries, and nickel-cadmium batteries, lithium-ion batteries have higher specific capacity, longer cycle life, and better safety performance. They will gradually replace nickel-metal hydride, nickel-cadmium and other batteries. However, lithium batteries are prone to overheating. During the charging or discharging process, lithium batteries will generate a lot of heat. If the temperature is too high, it may cause damage to the internal structure of the battery and irreversible electrochemical reactions, which may lead to a decrease in battery capacity or even dangerous situations such as explosion and fire. Therefore, lithium batteries need to be protected to reduce the risk of spontaneous combustion of lithium batteries due to impact or overheating. However, when lithium batteries are protected by buffer mechanisms, the installation of lithium batteries will be unstable. When lithium batteries are fixed by fixing methods, the bolts need to be repeatedly removed during maintenance, affecting the efficiency of maintenance. Utility Model Content

[0003] The purpose of the utility model is to provide a lithium battery installation box with a stable structure to solve the problem of poor installation methods proposed in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a structurally stable lithium battery installation box, comprising an outer box, a box cover is fixedly installed on the upper surface of the outer box by bolts, and an air intake filter and an exhaust filter are fixedly installed on the outer surfaces of both sides of the outer box, and a cooling fan is fixedly installed on the inner surface of one end of the outer box where the air intake filter is located, a connecting pole is arranged on the upper surface of the box cover, a lithium battery pack is installed inside the outer box, and a locking mechanism is arranged inside the outer box, so that the lithium battery pack can be pressed and locked by closing the outer box with the box cover.

[0005] Preferably, the locking mechanism includes: a pressure tube, which is fixedly arranged on the inner surface of the outer box, and a sliding limit rod is installed at one end of the pressure tube, and a sliding pressure rod is installed at the other end of the pressure tube, and the interior of the pressure tube is filled with hydraulic oil.

[0006] By adopting the above technical solution, the pressure rod can push the limit rod through the hydraulic oil when the pressure rod is pressed.

[0007] Preferably, the pressure tube is connected to the limit rod and the pressure rod by sliding friction, a spring is connected between the limit rod and the pressure tube, and the limit rod is mounted in a snap fit with the upper end of the lithium battery pack.

[0008] By adopting the above technical solution, the limiting rod can fix the lithium battery pack by engaging with the lithium battery pack after sliding out.

[0009] Preferably, a cooling mechanism is provided inside the outer box to enhance the heat dissipation effect on the lithium battery pack through the vibration of the outer box.

[0010] The above technical solution is adopted to accelerate the heat dissipation speed of the lithium battery pack.

[0011] Preferably, the cooling mechanism includes: a heat exchange tube, which is fixedly arranged inside the outer box, and a pressure box is fixedly connected between the two ends of the heat exchange tube, and a one-way valve is fixedly installed at the connection between the pressure box and the heat exchange tube, thermal conductive gel is filled between the heat exchange tube and the lithium battery pack, a piston plate is arranged inside the pressure box, and a rotating contact rod is installed inside the pressure box above the piston plate, a temporary storage box is fixedly installed on the outer surface of the heat exchange tube on one side of the pressure box, and a pressure plate is arranged inside the temporary storage box.

[0012] By adopting the above technical solution, the heat exchange tube can absorb the heat of the lithium battery pack through the thermal conductive gel.

[0013] Preferably, the upper end of the pressure box is hollowed out, and the pressure box and the piston plate are connected by sliding friction, and a spring is connected between the pressure box and the piston plate, the lower end of the contact rod is in contact with the upper surface of the piston plate, and a spring is connected between the outer surfaces on both sides of the contact rod and the inner surface of the pressure box.

[0014] By adopting the above technical solution, the contact rod can swing and cooperate with the spring to realize the reciprocating sliding of the piston plate when the outer box vibrates.

[0015] Preferably, the temporary storage box is connected to the pressure plate by sliding friction, the upper end of the temporary storage box is hollowed out, and a spring is connected between the temporary storage box and the pressure plate.

[0016] By adopting the above technical solution, the pressure plate can press the heat exchange medium pressed out by the pressure box into the heat exchange tube.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the lithium battery installation box with stable structure:

[0018] 1. After the box cover is fixedly installed with the outer box, the pressure rod is squeezed so that the pressure rod can push out the limit rod through the oil pressure. The limit rod is pushed out and engaged with the upper end of the lithium battery pack to fix the lithium battery pack after the box cover is installed. Therefore, the lithium battery pack can be taken out without disassembling the lithium battery pack after the box cover is removed, thereby ensuring the stability of the lithium battery installation structure and improving the efficiency of maintenance;

[0019] 2. Furthermore, the heat of the lithium battery pack can be quickly dissipated under the flow of the heat exchange medium in the heat exchange tube by exchanging heat between the lower surface of the lithium battery pack and the heat conductive gel. The contact between the heat conductive gel and the outer box and the heat exchange tube and the pressure box increases the overall heat dissipation area of ​​the lithium battery pack, thereby increasing the heat dissipation efficiency of the lithium battery pack.

[0020] 3. Furthermore, when the outer box is vibrated, the contact rod swings, so that the piston plate can slide up and down reciprocatingly in cooperation with the one-way valve to realize the flow of heat exchange medium in the heat exchange tube, thereby increasing the temperature difference between the heat exchange tube and the lithium battery pack to facilitate faster heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the outer box and the lithium battery pack of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the heat exchange tube and the pressure box connected in the utility model;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the cut surface connecting the outer box and the heat exchange tube of the utility model;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the overall cutaway surface of the utility model;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the connection section of the pressure pipe, the limit rod and the pressure rod of the utility model;

[0027] Figure 7 For this utility model Figure 5 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1. outer box; 2. box cover; 3. air intake filter; 4. exhaust filter; 5. cooling fan; 6. lithium battery pack; 7. pressure tube; 8. limit rod; 9. pressure rod; 10. heat exchange tube; 11. pressure box; 12. one-way valve; 13. piston plate; 14. contact rod; 15. temporary storage box; 16. pressure plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-7 The utility model provides a technical solution: a lithium battery installation box with a stable structure. Example

[0031] The present embodiment discloses: an outer box 1, a box cover 2 is fixedly installed on the upper surface of the outer box 1 by bolts, and an air intake filter 3 and an exhaust filter 4 are fixedly installed on the outer surfaces of both sides of the outer box 1, and a cooling fan 5 is fixedly installed on the inner surface of one end of the outer box 1 where the air intake filter 3 is located, a connecting pole is arranged on the upper surface of the box cover 2, a lithium battery pack 6 is installed inside the outer box 1, and a locking mechanism is arranged inside the outer box 1, and the lithium battery pack 6 is pressed and locked by closing the outer box 1 with the box cover 2;

[0032] The locking mechanism comprises: a pressure tube 7, which is fixedly arranged on the inner surface of the outer box 1, and a sliding limit rod 8 is installed at one end of the pressure tube 7, and a sliding pressure rod 9 is installed at the other end of the pressure tube 7, and the interior of the pressure tube 7 is filled with hydraulic oil;

[0033] The pressure tube 7 is connected to the limit rod 8 and the pressure rod 9 by sliding friction, and a spring is connected between the limit rod 8 and the pressure tube 7, and the limit rod 8 is mounted in a clamping manner on the upper end of the lithium battery pack 6;

[0034] During installation, the lithium battery pack 6 is first placed inside the outer box 1. At this time, the box cover 2 is placed on the upper surface of the outer box 1 to close the outer box 1 and fix it with bolts. At this time, the box cover 2 squeezes the upper end of the pressure rod 9, and the pressure rod 9 slides down and the hydraulic oil inside the pressure tube 7 pushes the limit rod 8 to slide. The limit rod 8 is clamped on the lithium battery pack 6 by engaging with the lithium battery pack 6, so that the lithium battery pack 6 will not shake at will. During the process, the cooling fan 5 is started to suck the external air into the outer box 1 through the air intake filter 3 to absorb heat and then discharge it through the exhaust filter 4, thereby realizing the discharge of heat. Example

[0035] This embodiment is disclosed on the basis of the embodiment 1: a cooling mechanism is provided inside the outer box 1, and the heat dissipation effect of the lithium battery pack 6 is enhanced by the vibration of the outer box 1;

[0036] The cooling mechanism includes: a heat exchange tube 10, which is fixedly arranged inside the outer box 1, and a pressure box 11 is fixedly connected between the two ends of the heat exchange tube 10, and a one-way valve 12 is fixedly installed at the connection between the pressure box 11 and the heat exchange tube 10, and a heat-conducting gel is filled between the heat exchange tube 10 and the lithium battery pack 6, a piston plate 13 is arranged inside the pressure box 11, and a rotating contact rod 14 is installed inside the pressure box 11 above the piston plate 13, and a temporary storage box 15 is fixedly installed on the outer surface of the heat exchange tube 10 on one side of the pressure box 11, and a pressure plate 16 is arranged inside the temporary storage box 15;

[0037] The upper end of the pressure box 11 is hollowed out, and the pressure box 11 and the piston plate 13 are connected by sliding friction, and a spring is connected between the pressure box 11 and the piston plate 13, the lower end of the contact rod 14 is in contact with the upper surface of the piston plate 13, and a spring is connected between the outer surfaces of both sides of the contact rod 14 and the inner surface of the pressure box 11;

[0038] The temporary storage box 15 and the pressure plate 16 are connected by sliding friction, and the upper end of the temporary storage box 15 is hollowed out, and a spring is connected between the temporary storage box 15 and the pressure plate 16;

[0039] When the lithium battery pack 6 is connected to the equipment through the connecting pole on the upper surface for operation, when the outer box 1 vibrates due to the movement of the equipment during operation, the contact rod 14 swings. When the contact rod 14 swings close to the piston plate 13, the piston plate 13 slides down to press the heat exchange medium in the pressure box 11 into the temporary storage box 15 through the one-way valve 12 on one side. At this time, the pressure plate 16 in the temporary storage box 15 slides up to compress the spring between the temporary storage box 15 and the temporary storage box 15. When the contact rod 14 swings away from the piston plate 13, the piston plate 13 sucks the heat exchange medium in the heat exchange tube 10 through the one-way valve 12 on one side under the support of the spring between the piston plate 13 and the pressure box 11, and the internal pressure of the heat exchange tube 10 is reduced, so that the pressure plate 16 in the temporary storage box 15 can press the heat exchange medium in the temporary storage box 15 into the heat exchange tube 10 under the support of the spring. The flow of the heat exchange medium in the heat exchange tube 10 is achieved by repeating the above process, and the heat exchange tube 10 accelerates the heat conduction with the lithium battery pack 6 through the thermal conductive gel.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery installation box with a stable structure, comprising an outer box (1), a box cover (2) being fixedly mounted on the upper surface of the outer box (1) by bolts, an air intake filter (3) and an exhaust filter (4) being fixedly mounted on the outer surfaces of both sides of the outer box (1), and a cooling fan (5) being fixedly mounted on the inner surface of one end of the outer box (1) where the air intake filter (3) is located, a connecting pole being arranged on the upper surface of the box cover (2), and a lithium battery pack (6) being mounted inside the outer box (1), characterized in that: A locking mechanism is provided inside the outer box (1), and the lithium battery pack (6) is pressed and locked by closing the outer box (1) with the box cover (2).

2. A lithium battery installation box with a stable structure according to claim 1, characterized in that: The locking mechanism comprises: a pressure tube (7), the pressure tube (7) being fixedly arranged on the inner surface of the outer box (1), and a sliding limit rod (8) being installed at one end of the pressure tube (7), and a sliding pressure rod (9) being installed at the other end of the pressure tube (7), and the interior of the pressure tube (7) being filled with hydraulic oil.

3. A lithium battery installation box with a stable structure according to claim 2, characterized in that: The pressure tube (7) is connected to the limit rod (8) and the pressure rod (9) by sliding friction, a spring is connected between the limit rod (8) and the pressure tube (7), and the limit rod (8) is mounted in a snap-fitting manner with the upper end of the lithium battery pack (6).

4. A lithium battery installation box with a stable structure according to claim 1, characterized in that: A cooling mechanism is provided inside the outer box (1), and the heat dissipation effect on the lithium battery pack (6) is enhanced through the vibration of the outer box (1).

5. A lithium battery installation box with a stable structure according to claim 4, characterized in that: The cooling mechanism comprises: a heat exchange tube (10), the heat exchange tube (10) being fixedly arranged inside the outer box (1), and a pressure box (11) being fixedly connected between the two ends of the heat exchange tube (10), and a one-way valve (12) being fixedly installed at the connection between the pressure box (11) and the heat exchange tube (10), a heat conductive gel being filled between the heat exchange tube (10) and the lithium battery pack (6), a piston plate (13) being arranged inside the pressure box (11), and a rotatable contact rod (14) being installed inside the pressure box (11) above the piston plate (13), and a temporary storage box (15) being fixedly installed on the outer surface of the heat exchange tube (10) on one side of the pressure box (11), and a pressure plate (16) being arranged inside the temporary storage box (15).

6. A lithium battery installation box with a stable structure according to claim 5, characterized in that: The upper end of the pressure box (11) is hollow-out, and the pressure box (11) and the piston plate (13) are connected by sliding friction, and a spring is connected between the pressure box (11) and the piston plate (13), the lower end of the contact rod (14) is in contact with the upper surface of the piston plate (13), and a spring is connected between the outer surfaces on both sides of the contact rod (14) and the inner surface of the pressure box (11).

7. A lithium battery installation box with a stable structure according to claim 5, characterized in that: The temporary storage box (15) and the pressure plate (16) are connected by sliding friction, the upper end of the temporary storage box (15) is hollowed out, and a spring is connected between the temporary storage box (15) and the pressure plate (16).

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