Lithium battery with easy heat dissipation

Abstract

This invention relates to the field of lithium battery technology and discloses an easily heat-dissipating lithium battery, including a housing assembly. Liquid pumps are fixedly mounted on both sides of the bottom outer wall of the housing assembly, and hollow heat-dissipating fins are fixedly mounted on the top of the liquid pumps. A control panel is fixedly mounted on the top of the housing assembly, and a heat dissipation component is fixedly mounted on the outer wall of the housing assembly. When a group of battery cells explodes, the protective housing guides the impact force of the explosion. The impact force impacts the inner wall of the mounting slot away from the heat dissipation component, causing the battery cell to move the protective housing towards the heat dissipation component. This causes the battery cell to cut between the nickel plate and the slot, disconnecting the power from the control panel. Simultaneously, the interlocking relationship between the protective housing and the mounting slot allows the battery cell group, along with the protective housing, to separate from the housing assembly. The separated protective housing continues to protect the battery cell, preventing large-scale combustion of the separated battery cell.

Description

Technical Field

[0001] This invention relates to the field of lithium battery technology, specifically to a lithium battery with easy heat dissipation. Background Technology

[0002] Existing energy storage lithium batteries generally include a casing and multiple lithium battery cells inside. The multiple lithium battery cells are usually fixedly installed in the casing by a battery rack and are connected to each other in series or parallel. The amount of power and voltage can be adjusted by adjusting the number and connection method of the internal battery cells.

[0003] However, lithium batteries have a heat problem during use, especially when they are installed in the workplace. Because there are other devices around, the installation space is narrow, making it even more difficult for the heat to dissipate.

[0004] In addition, during long-term use, some lithium battery cells may develop problems such as bulging. Although they can still be used normally, there are certain hidden dangers in using them in this state, but existing lithium batteries cannot detect these hidden dangers in time. Summary of the Invention

[0005] This invention provides a lithium battery with easy heat dissipation, which solves the problems mentioned in the background art.

[0006] The present invention provides the following technical solution: an easily heat-dissipating lithium battery, including a housing assembly, wherein liquid pumps are fixedly mounted on both sides of the bottom outer wall of the housing assembly, hollow heat dissipation fins are fixedly mounted on the top of the liquid pumps, a control panel is fixedly mounted on the top of the housing assembly, and heat dissipation components are fixedly mounted on the outer wall of the housing assembly.

[0007] As a preferred embodiment of the present invention: the housing assembly includes an outer shell, the outer wall of the outer shell near the heat dissipation component has a plurality of mounting grooves, the inner cavity of the outer shell has a liquid tank, the inner wall of the mounting groove away from the heat dissipation component has a slot, the inner wall of the mounting groove is fitted with a protective shell, the inner wall of the protective shell is fixedly fitted with a reinforcing rib, the inner wall of the reinforcing rib is fixedly fitted with a buffer pad, a battery cell is provided at one end of the buffer pad near the center of the protective shell, a connecting seat is provided on the side of the battery cell away from the heat dissipation component, a nickel sheet is welded to the outer wall of the connecting seat, and a flow hole is provided on the outer wall of the protective shell near the heat dissipation component.

[0008] As a preferred technical solution of the present invention: the outer wall of the protective shell and the mounting groove near the heat dissipation component is sealed and fixed by sealant; the inner cavity of the liquid tank is filled with liquid; the nickel sheet is located on the inner wall of the slot, and the liquid in the slot and the inner cavity of the liquid tank does not contact each other; the battery cell is located in the inner cavity of the protective shell, and the battery cell is fixed to the protective shell by a buffer pad; a flow groove is provided between the protective shell and the reinforcing rib; there are two connecting seats, which serve as the positive and negative terminals of the battery cell, respectively; the end of the connecting seat away from the battery cell is inclined.

[0009] As a preferred embodiment of the present invention: the bottom outlet of both sets of liquid pumps is connected to the bottom inner cavity of the liquid tank, the top inlet of both sets of liquid pumps is connected to the bottom inner cavity of the hollow heat dissipation fin, and the top inlet of both sets of hollow heat dissipation fins is connected to the top inner cavity of the liquid tank.

[0010] As a preferred technical solution of the present invention: a plurality of the battery cells are connected in parallel with the control panel via nickel plates, and the opening end of the protective shell is disposed towards the slot side.

[0011] As a preferred technical solution of the present invention: the heat dissipation component includes a mounting bracket, and a plurality of fan brackets are embedded in the inner wall of the mounting bracket on the side away from the housing component, and a fan body is provided on the inner wall of the fan bracket;

[0012] Both sides of the mounting frame are fixedly equipped with air outlet pipes that communicate with the inner cavity of the mounting frame. The inner cavity of the mounting frame is connected to the adjacent flow holes on two sets of parallel protective shells through the air outlet pipes. Water-absorbing filter cotton is adhered to the inner wall of the relatively far flow holes on the two sets of parallel protective shells.

[0013] The mounting bracket and the inner wall of the housing assembly are bonded and fixed.

[0014] As a preferred embodiment of the present invention, the liquid pump and the control panel are electrically connected, and the liquid pump is controlled by the control panel.

[0015] As a preferred embodiment of the present invention, the control panel is used for the charging and discharging management of several battery cells.

[0016] The present invention has the following beneficial effects:

[0017] 1. This easily heat-dissipating lithium battery utilizes the rotation of the fan body to create a negative pressure in the inner cavity of the mounting bracket, allowing air to be drawn in through relatively far-away flow holes on two sets of parallel protective shells. The air is then conducted through the mounting bracket to adjacent flow holes on the two sets of parallel protective shells and discharged through the fan body. By circulating the air on the surface of several battery cells, the temperature of the space between the battery cells and the protective shell is dissipated.

[0018] Two sets of liquid pumps circulate the liquid in the housing assembly and the inner cavity of the hollow heat dissipation fins, while the hollow heat dissipation fins improve the heat dissipation efficiency of the liquid, enabling the device to cool the battery cells.

[0019] On the other hand, by connecting the mounting bracket and the flow hole with the air outlet pipe, the air outlet pipe can support the protective shell, so that the position between the protective shell and the mounting groove remains unchanged during the shaking of the equipment, thereby avoiding the problem of the slot cutting the nickel sheet due to the shaking between the protective shell and the mounting groove.

[0020] 2. In this easily heat-dissipating lithium battery, when a group of cells explodes, the protective shell guides the impact force of the cell explosion. The impact force of the cell explosion impacts the inner wall of the mounting slot on the side away from the heat dissipation component, causing the cell to move the protective shell towards the heat dissipation component. This causes the cell to cut between the nickel plate and the slot, disconnecting the power from the control panel. At the same time, the connection between the protective shell and the mounting slot allows the cell group to separate from the protective shell and the housing assembly. After separation, the protective shell continues to protect the cell, preventing large-scale combustion of the separated cell. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the hollow heat dissipation fin structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the liquid tank structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the protective outer shell structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the mounting groove structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the reinforcing rib structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the heat dissipation component structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the card slot structure of the present invention.

[0029] In the diagram: 1. Housing assembly; 2. Liquid pump; 3. Hollow heat dissipation fin; 4. Control panel; 5. Heat dissipation assembly;

[0030] 101. Outer shell; 102. Mounting groove; 103. Liquid tank; 104. Slot; 105. Protective shell; 106. Reinforcing rib; 107. Buffer pad; 108. Battery cell; 109. Connector; 1010. Nickel sheet; 1011. Flow hole;

[0031] 501. Mounting bracket; 502. Fan bracket; 503. Fan body; 504. Air outlet duct. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1 - Figure 8 A heat-dissipating lithium battery includes a housing assembly 1, with liquid pumps 2 fixedly mounted on both sides of the bottom outer wall of the housing assembly 1, hollow heat dissipation fins 3 fixedly mounted on the top of the liquid pumps 2, a control panel 4 fixedly mounted on the top of the housing assembly 1, and heat dissipation components 5 fixedly mounted on the outer wall of the housing assembly 1.

[0034] In a preferred embodiment: the housing assembly 1 includes an outer shell 101. The outer wall of the outer shell 101 near the heat dissipation assembly 5 has a plurality of mounting grooves 102. The inner cavity of the outer shell 101 has a liquid tank 103. The inner wall of the mounting grooves 102 away from the heat dissipation assembly 5 has a slot 104. The inner wall of the mounting grooves 102 is fitted with a protective shell 105. The inner wall of the protective shell 105 is fixedly fitted with a reinforcing rib 106. The inner wall of the reinforcing rib 106 is fixedly fitted with a buffer pad 107. A battery cell 108 is provided at one end of the buffer pad 107 near the center of the protective shell 105. A connecting seat 109 is provided on the side of the battery cell 108 away from the heat dissipation assembly 5. A nickel sheet 1010 is welded to the outer wall of the connecting seat 109. A flow hole 1011 is provided on the outer wall of the protective shell 105 near the heat dissipation assembly 5.

[0035] In the above structure, a number of battery cells 108 are electrically connected to the control panel 4 through the nickel sheet 1010, and the nickel sheet 1010 and the control panel 4 can be connected by wires. The liquid tank 103 reduces the weight of the housing assembly 1, making the device portable, and the slot 104 fixes the nickel sheet 101 to the outer shell 101.

[0036] In a preferred embodiment: the outer wall of the protective shell 105 and the mounting groove 102 near the heat dissipation component 5 is sealed and fixed with sealant; the inner cavity of the liquid tank 103 is filled with liquid; the nickel sheet 1010 is located on the inner wall of the slot 104, and the liquid in the slot 104 and the inner cavity of the liquid tank 103 do not contact each other; the battery cell 108 is located in the inner cavity of the protective shell 105, and the battery cell 108 is fixed to the protective shell 105 by the buffer pad 107; a flow groove is provided between the protective shell 105 and the reinforcing rib 106; there are two connecting seats 109, which serve as the positive and negative terminals of the battery cell 108, respectively; the end of the connecting seat 109 away from the battery cell 108 is inclined.

[0037] In the above structure, the protective housing 105 and the liquid tank 103 are sealed and fixed with sealant, so that the protective housing 105 will not detach from the liquid tank 103 when the equipment is moved. This also prevents moisture from contacting the battery cell 108 through the gap between the protective housing 105 and the mounting groove 102. The liquid inside the liquid tank 103 absorbs heat from the housing assembly 1, lowering the temperature of the battery cell 108. The battery cell 108 is fixed to the protective housing 105 by a buffer pad 107, and there is a certain space between the inner wall of the protective housing 105 and the outer wall of the battery cell 108. This allows the buffer pad 107 to absorb the force of the battery cell 108 shaking during equipment movement. The end of the connecting seat 109 away from the battery cell 108 is inclined, allowing the nickel sheet 101... The mounting slot 102 is tilted so that when a group of battery cells 108 explodes, the protective shell 105 guides the impact force of the explosion. The impact force of the explosion impacts the inner wall of the mounting slot 102 away from the heat dissipation component 5, causing the battery cell 108 to move the protective shell 105 towards the heat dissipation component 5. This causes the battery cell 108 to cut between the nickel sheet 1010 and the slot 104, disconnecting the power between the battery cell 108 and the control panel 4. At the same time, the sleeve relationship between the protective shell 105 and the mounting slot 102 allows the battery cell 108 to separate the protective shell 105 from the housing assembly 1. After separation, the protective shell 105 continues to protect the battery cell 108 to prevent large-scale combustion of the separated battery cell 108.

[0038] During this process, the toughness of the protective shell 105 is increased by the reinforcing ribs 106 located on the inner wall of the protective shell 105, which solves the problem of deformation caused by the impact of the battery cell 108 explosion on the protective shell 105 and the mounting groove 102.

[0039] In a preferred embodiment: the bottom outlet of both sets of liquid pumps 2 is connected to the bottom inner cavity of the liquid tank 103, the top inlet of both sets of liquid pumps 2 is connected to the bottom inner cavity of the hollow heat dissipation fin 3, and the top inlet of both sets of hollow heat dissipation fin 3 is connected to the top inner cavity of the liquid tank 103.

[0040] In the above structure, two sets of liquid pumps 2 are used to circulate the liquid in the housing assembly 1 and the hollow heat dissipation fin 3, and the hollow heat dissipation fin 3 is used to improve the heat dissipation efficiency of the liquid, so that the device can cool down the battery cell 108.

[0041] In a preferred embodiment: several battery cells 108 are connected in parallel with the control panel 4 via nickel strips 1010, and the opening end of the protective housing 105 is disposed on the side of the slot 104.

[0042] In the above structure, all battery cells 108 are connected in parallel with the control panel 4 via nickel plates 1010. After a group of battery cells 108 and protective shell 105 are separated from the shell assembly 1, the main body of the equipment can still operate normally, reducing the overall maintenance cost of the equipment.

[0043] In a preferred embodiment: the heat dissipation assembly 5 includes a mounting bracket 501, and a plurality of fan brackets 502 are embedded in the inner wall of the mounting bracket 501 on the side away from the housing assembly 1, and a fan body 503 is provided on the inner wall of the fan bracket 502.

[0044] Both sides of the mounting bracket 501 are fixedly equipped with air outlet pipes 504 that communicate with the inner cavity of the mounting bracket 501. The inner cavity of the mounting bracket 501 is connected to the adjacent flow holes 1011 on two sets of parallel protective shells 105 through the air outlet pipes 504. Water-absorbing filter cotton is adhered to the inner wall of the relatively far flow holes 1011 on the two sets of parallel protective shells 105.

[0045] Mounting bracket 501 and housing assembly 1 are bonded and fixed to the inner wall.

[0046] In the above structure, the inner cavity of the mounting bracket 501 is connected to the air outlet pipe 504 and the adjacent flow holes 1011 on the two sets of parallel protective shells 105.

[0047] By rotating the fan body 503, a negative pressure is created inside the mounting bracket 501, drawing air in through relatively distant flow holes 1011 on two sets of parallel protective shells 105. The air is then conducted through the mounting bracket 501 to adjacent flow holes 1011 on the two sets of parallel protective shells 105 and discharged through the fan body 503. The air circulates on the surface of several battery cells 108, thereby achieving heat dissipation in the space between the battery cells 108 and the protective shells 105. The absorbent filter cotton attached to the inner wall of the relatively distant flow holes 1011 on the two sets of parallel protective shells 105 adsorbs moisture in the air, increasing the dryness of the air between the battery cells 108 and the protective shells 105, and extending the service life of the battery cells 108.

[0048] On the other hand, the air outlet duct 504 is used to connect the mounting bracket 501 and the flow hole 1011, so that the air outlet duct 504 can support the protective shell 105. This ensures that the position between the protective shell 105 and the mounting groove 102 remains unchanged during the shaking of the equipment, thereby avoiding the problem of the slot 104 cutting the nickel sheet 1010 due to the shaking between the protective shell 105 and the mounting groove 102.

[0049] In a preferred embodiment, the liquid pump 2 and the control panel 4 are electrically connected, and the liquid pump 2 is controlled by the control panel 4.

[0050] In a preferred embodiment, the control panel 4 is used for the charging and discharging management of a plurality of battery cells 108.

[0051] Working principle: The battery cell 108 is fixed by the buffer pad 107 and the protective shell 105, and there is a certain space between the inner wall of the protective shell 105 and the outer wall of the battery cell 108. During the movement of the equipment, the force of the battery cell 108 shaking can be absorbed by the buffer pad 107. The fan body 503 rotates, and the air is drawn in through the relatively far-away flow holes 1011 opened on the two sets of parallel protective shells 105. The air is then conducted through the mounting bracket 501 to the adjacent flow holes 1011 opened on the two sets of parallel protective shells 105 and discharged. The air circulates on the surface of several battery cells 108, thereby achieving heat dissipation in the space between the battery cell 108 and the protective shell 105. The water-absorbing filter cotton adhered to the inner wall of the relatively far-away flow holes 1011 opened on the two sets of parallel protective shells 105 adsorbs the moisture in the air, thereby increasing the dryness of the air between the battery cell 108 and the protective shell 105 and increasing the service life of the battery cell 108.

[0052] Two sets of liquid pumps 2 are used to circulate the liquid in the housing assembly 1 and the hollow heat dissipation fin 3, and the hollow heat dissipation fin 3 is used to improve the heat dissipation efficiency of the liquid, so that the device can cool down the battery cell 108.

[0053] The protective housing 105 and the liquid tank 103 are sealed and fixed together with sealant, so that the protective housing 105 will not detach from the liquid tank 103 when the equipment is moved. The end of the connecting seat 109 away from the battery cell 108 is tilted, causing the nickel sheet 1010 to be tilted as well. This ensures that if a group of battery cells 108 explodes, the protective housing 105 will guide the impact force of the explosion, allowing the explosive force to impact the inner wall of the mounting groove 102 on the side away from the heat dissipation component 5. This causes the battery cell 108 to move the protective shell 105 toward the heat dissipation assembly 5, thereby causing the battery cell 108 to cut between the nickel sheet 1010 and the slot 104, thus disconnecting the battery cell 108 from the control panel 4. At the same time, by utilizing the sleeve relationship between the protective shell 105 and the mounting slot 102, the battery cell 108 causes the protective shell 105 to separate from the housing assembly 1. After separation, the protective shell 105 continues to protect the battery cell 108 to avoid the problem of large-area combustion of the separated battery cell 108.

[0054] During this process, the toughness of the protective shell 105 is increased by the reinforcing ribs 106 located on the inner wall of the protective shell 105, which solves the problem of deformation caused by the impact of the battery cell 108 explosion on the protective shell 105 and the mounting groove 102.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat dissipating lithium battery comprising a housing assembly (1) characterized in that: Liquid pumps (2) are fixedly mounted on both sides of the bottom outer wall of the housing assembly (1), hollow heat dissipation fins (3) are fixedly mounted on the top of the liquid pumps (2), control panel (4) is fixedly mounted on the top of the housing assembly (1), and heat dissipation components (5) are fixedly mounted on the outer wall of the housing assembly (1). The housing assembly (1) includes an outer shell (101). The outer wall of the outer shell (101) near the heat dissipation assembly (5) has several mounting grooves (102). A liquid tank (103) is formed in the inner cavity of the outer shell (101). A slot (104) is formed on the inner wall of the mounting groove (102) away from the heat dissipation assembly (5). A protective shell (105) is fitted onto the inner wall of the mounting groove (102). A reinforcing element is fixedly mounted on the inner wall of the protective shell (105). The inner wall of the reinforcing rib (106) is fixedly fitted with a buffer pad (107). A battery cell (108) is provided at one end of the buffer pad (107) near the center of the protective shell (105). A connecting seat (109) is provided on the side of the battery cell (108) away from the heat dissipation component (5). A nickel sheet (1010) is welded to the outer wall of the connecting seat (109). A flow hole (1011) is opened on the outer wall of the protective shell (105) near the heat dissipation component (5). The outer wall of the protective shell (105) and the mounting groove (102) near the heat dissipation component (5) is sealed and fixed with sealant. The inner cavity of the liquid tank (103) is filled with liquid. The nickel sheet (1010) is located on the inner wall of the slot (104), and the liquid in the slot (104) and the inner cavity of the liquid tank (103) do not contact each other. The battery cell (108) is located in the inner cavity of the protective shell (105), and the battery cell (108) is fixed to the protective shell (105) by the buffer pad (107). A flow groove is provided between the protective shell (105) and the reinforcing rib (106). There are two connecting seats (109), and the two connecting seats (109) serve as the positive and negative poles of the battery cell (108) respectively. The end of the connecting seat (109) away from the battery cell (108) is inclined.

2. The lithium battery of claim 1, wherein: The bottom outlet of both sets of liquid pumps (2) is connected to the bottom inner cavity of the liquid tank (103), the top inlet of both sets of liquid pumps (2) is connected to the bottom inner cavity of the hollow heat dissipation fin (3), and the top inlet of both sets of hollow heat dissipation fin (3) is connected to the top inner cavity of the liquid tank (103).

3. The lithium battery of claim 2, wherein: Several of the battery cells (108) are connected in parallel via nickel strips (1010) and control panel (4), and the opening end of the protective housing (105) is disposed on the side of the slot (104).

4. The easily heat-dissipating lithium battery according to claim 3, characterized in that: The heat dissipation assembly (5) includes a mounting bracket (501), and a number of fan brackets (502) are embedded in the inner wall of the mounting bracket (501) away from the housing assembly (1). The inner wall of the fan bracket (502) is provided with a fan body (503). Both sides of the mounting bracket (501) are fixedly equipped with air outlet pipes (504) that communicate with the inner cavity of the mounting bracket (501). The inner cavity of the mounting bracket (501) is connected to the air outlet pipes (504) and the adjacent flow holes (1011) on two sets of parallel protective shells (105). The inner walls of the relatively far flow holes (1011) on the two sets of parallel protective shells (105) are bonded with absorbent filter cotton. The mounting bracket (501) and the inner wall of the housing assembly (1) are bonded and fixed.

5. The easily heat-dissipating lithium battery according to claim 4, characterized in that: The liquid pump (2) is electrically connected to the control panel (4), and the liquid pump (2) is controlled by the control panel (4).

6. The easily heat-dissipating lithium battery according to claim 5, characterized in that: The control panel (4) is used for the charging and discharging management of several battery cells (108).

Images