Lithium battery easy to dissipate heat

Abstract

The invention relates to the technical field of lithium batteries, and discloses an easy heat dissipation lithium battery which comprises a shell assembly, liquid pumps are fixedly assembled on the outer walls of the two sides of the bottom of the shell assembly, hollow heat dissipation fins are fixedly assembled on the tops of the liquid pumps, and a control panel is fixedly assembled on the top of the shell assembly. A heat dissipation assembly is fixedly assembled on the outer wall of the shell assembly. When a certain group of battery cells explode, the impact force of battery cell explosion is guided by the protective shell, and the inner wall of one side, far away from the heat dissipation assembly, of the mounting groove is impacted by the impact force of battery cell explosion, so that the battery cells drive the protective shell to move towards one side of the heat dissipation assembly, and then the battery cells drive the nickel sheet and the clamping groove to realize cutting; the group of battery cells and the control panel are powered off, meanwhile, the group of battery cells drive the protective shell to be separated from the shell assembly by utilizing the sleeving relation of the protective shell and the mounting groove, and the separated protective shell keeps protecting the battery cells, so that the problem of large-area combustion of the separated battery cells is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, in particular to a lithium battery that is easy to dissipate heat. Background Art

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

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

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

[0005] The present invention provides a lithium battery with easy heat dissipation, which solves the problems raised by the above background technology.

[0006] The present invention provides the following technical solution: a lithium battery that is easy to dissipate heat, comprising a shell assembly, wherein the outer walls on both sides of the bottom of the shell assembly are fixedly equipped with a liquid pump, the top of the liquid pump is fixedly equipped with a hollow heat dissipation fin, the top of the shell assembly is fixedly equipped with a control panel, and the outer wall of the shell assembly is fixedly equipped with a heat dissipation assembly.

[0007] As a preferred technical solution of the present invention: the shell assembly includes an outer shell, a plurality of installation grooves are provided on the outer wall of the outer shell close to the heat dissipation assembly, a liquid groove is provided on the inner cavity of the outer shell, a card groove is provided on the inner wall of the installation groove away from the heat dissipation assembly, a protective shell is sleeved on the inner wall of the installation groove, a reinforcing rib is fixedly installed on the inner wall of the protective shell, a buffer pad is fixedly installed on the inner wall of the reinforcing rib, a battery cell is provided at one end of the buffer pad close to the center of the protective shell, a connecting seat is provided on the side of the battery cell away from the heat dissipation assembly, a nickel sheet is welded on the outer wall of the connecting seat, and a circulation hole is provided on the outer wall of the protective shell close to the heat dissipation assembly.

[0008] As a preferred technical solution of the present invention: the protective shell and the outer wall of the mounting groove on one side close to the heat dissipation component are 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 card slot, and the liquid in the card slot and the inner cavity of the liquid tank do not contact, the battery cell is located in the inner cavity of the protective shell, and the battery cell is fixed by the buffer pad and the protective shell, a flow groove is arranged between the protective shell and the reinforcement rib, there are two connecting seats, the two connecting seats serve as the positive and negative poles of the battery cell respectively, and the connecting seat is inclined away from the end of the battery cell.

[0009] As a preferred technical solution of the present invention: the bottom water outlet ends of the two groups of liquid pumps are connected to the bottom inner cavity of the liquid tank, the top water inlet ends of the two groups of liquid pumps are connected to the bottom inner cavity of the hollow heat dissipation fins, and the top water inlet ends of the two groups of hollow heat dissipation fins are 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 via a nickel sheet and a control panel, and the opening end of the protective shell is arranged toward one side of the card slot.

[0011] As a preferred technical solution of the present invention: the heat dissipation component includes a mounting frame, and a plurality of groups of fan racks are inlaid on the inner wall of one side of the mounting frame away from the housing component, and a fan body is arranged on the inner wall of the fan rack;

[0012] Both sides of the mounting frame are fixedly equipped with air outlet pipes connected to the inner cavity of the mounting frame, and the inner cavity of the mounting frame is connected to two sets of adjacent flow holes opened on the parallel protective shells through the air outlet pipes, and the inner walls of the relatively far flow holes opened on the two sets of parallel protective shells are bonded with water-absorbing filter cotton;

[0013] The mounting frame and the inner wall of the shell assembly are bonded and fixed.

[0014] As a preferred technical solution of the present invention: the liquid pump is electrically connected to the control panel, and the liquid pump is controlled by the control panel.

[0015] As a preferred technical solution of the present invention: the control panel is used to manage the charging and discharging of a plurality of battery cells.

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

[0017] 1. The heat-dissipating lithium battery uses the rotation of the fan body to form a negative pressure in the inner cavity of the mounting frame, so that the wind is sucked in through relatively far-flung flow holes opened on two sets of parallel protective shells, and is transmitted through the mounting frame to the adjacent flow holes opened on the two sets of parallel protective shells, and is discharged through the fan body. The air circulates on the surface of several battery cells, thereby realizing the temperature heat dissipation in the space between the battery cells and the protective shells;

[0018] Two sets of liquid pumps are used to circulate the liquid in the shell assembly and the inner cavity of the hollow heat dissipation fins, and the hollow heat dissipation fins are used to improve the heat dissipation efficiency of the liquid, so that the device can cool the battery cells.

[0019] On the other hand, the mounting frame and the flow hole are connected by an air outlet duct, so that the air outlet duct can support the protective shell, so that the position between the protective shell and the mounting slot remains unchanged during the shaking of the equipment, thereby avoiding the problem of shaking between the protective shell and the mounting slot, which may cause the nickel sheet to be cut by the card slot.

[0020] 2. When a group of cells of the easy-to-dissipate lithium battery explodes, the protective casing is used to guide the impact force of the cell explosion. The impact force of the cell explosion impacts the inner wall of the mounting slot away from the heat dissipation component, so that the cell drives the protective casing to move toward the heat dissipation component, and then the cell drives the nickel sheet and the card slot to achieve cutting, so that the group of cells and the control panel are disconnected from the power supply. At the same time, the socket relationship between the protective casing and the mounting slot is utilized to separate the protective casing and the shell assembly. After separation, the protective casing maintains protection for the cell to avoid large-scale burning of the separated cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure 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 It is a schematic diagram of the structure of the liquid tank of the present invention;

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

[0025] Figure 5 This is a schematic diagram of the installation slot 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 It is a schematic diagram of the structure of the heat dissipation component of the present invention;

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

[0029] In the figure: 1. Shell assembly; 2. Liquid pump; 3. Hollow heat dissipation fins; 4. Control panel; 5. Heat dissipation assembly;

[0030] 101, outer shell; 102, mounting groove; 103, liquid groove; 104, card slot; 105, protective shell; 106, reinforcing rib; 107, buffer pad; 108, battery cell; 109, connecting seat; 1010, nickel sheet; 1011, flow hole;

[0031] 501, mounting frame; 502, fan frame; 503, fan body; 504, air outlet duct. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1 - Figure 8 A lithium battery that is easy to dissipate heat includes a shell component 1, the outer walls on both sides of the bottom of the shell component 1 are fixedly equipped with a liquid pump 2, the top of the liquid pump 2 is fixedly equipped with a hollow heat dissipation fin 3, the top of the shell component 1 is fixedly equipped with a control panel 4, and the outer wall of the shell component 1 is fixedly equipped with a heat dissipation component 5.

[0034] In a preferred embodiment: the shell component 1 includes an outer shell 101, a plurality of installation grooves 102 are provided on the outer wall of the outer shell 101 on the side close to the heat dissipation component 5, a liquid groove 103 is provided in the inner cavity of the outer shell 101, a card groove 104 is provided on the inner wall of the installation groove 102 on the side away from the heat dissipation component 5, a protective shell 105 is sleeved on the inner wall of the installation groove 102, a reinforcing rib 106 is fixedly installed on the inner wall of the protective shell 105, a buffer pad 107 is fixedly installed on the inner wall of the reinforcing rib 106, a battery cell 108 is provided at one end of the buffer pad 107 close to 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 on the outer wall of the connecting seat 109, and a circulation hole 1011 is provided on the outer wall of the protective shell 105 on the side close to the heat dissipation component 5.

[0035] In the above structure, the nickel sheet 1010 is used to electrically connect the plurality of battery cells 108 to the control panel 4, and the nickel sheet 1010 and the control panel 4 can be connected via a wire. The liquid tank 103 is used to reduce the mass of the shell assembly 1 to achieve portability of the device, and the card slot 104 is used to fix the nickel sheet 101 to the outer shell 101.

[0036] In a preferred embodiment: the protective shell 105 and the outer wall of the mounting groove 102 on one side close to the heat dissipation component 5 are sealed and fixed by 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 card slot 104, and the liquid in the inner cavity of the card slot 104 and the liquid tank 103 do not contact, 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 arranged between the protective shell 105 and the reinforcing rib 106, and there are two connecting seats 109, which serve as the positive and negative poles of the battery cell 108 respectively, and the connecting seat 109 is inclined away from the end of the battery cell 108.

[0037] In the above structure, the protective shell 105 and the liquid tank 103 are sealed and fixed by a sealant, so that when the device is moved, the protective shell 105 will not be separated from the liquid tank 103, and at the same time, moisture is prevented from contacting the battery cell 108 through the gap between the protective shell 105 and the mounting groove 102, and the liquid in the inner cavity of the liquid tank 103 absorbs the heat of the shell component 1, which can reduce the temperature of the battery cell 108. The battery cell 108 is fixed to the protective shell 105 by the buffer pad 107, and there is a certain space between the inner wall of the protective shell 105 and the outer wall of the battery cell 108, so that during the movement of the device, the shaking force of the battery cell 108 can be absorbed by the buffer pad 107, and the end of the connecting seat 109 away from the battery cell 108 is inclined to make the nickel sheet 101 0 is arranged at an angle, so that when a group of battery cells 108 explodes, the protective shell 105 is used to guide the impact force of the explosion of the battery cells 108, and the impact force of the explosion of the battery cells 108 impacts the inner wall of the mounting groove 102 away from the heat dissipation component 5, so that the battery cells 108 drive the protective shell 105 to move toward the heat dissipation component 5, and then the battery cells 108 drive the nickel sheet 1010 and the card slot 104 to achieve cutting, so that the group of battery cells 108 and the control panel 4 are disconnected from the power supply, and at the same time, the socket relationship between the protective shell 105 and the mounting groove 102 is used to drive the group of battery cells 108 to separate the protective shell 105 and the shell component 1, and the separated protective shell 105 keeps protecting the battery cells 108, so as to avoid the problem of large-area burning of the separated battery cells 108;

[0038] In 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, thereby solving the problem of deformation of the protective shell 105 and the mounting slot 102 caused by the impact force of the explosion of the battery cell 108.

[0039] In a preferred embodiment: the bottom water outlet ends of the two groups of liquid pumps 2 are connected to the bottom inner cavity of the liquid tank 103, the top water inlet ends of the two groups of liquid pumps 2 are connected to the bottom inner cavity of the hollow heat dissipation fins 3, and the top water inlet ends of the two groups of hollow heat dissipation fins 3 are connected to the top inner cavity of the liquid tank 103.

[0040] In the above structure, two groups of liquid pumps 2 are used to circulate the liquid in the inner cavity of the shell assembly 1 and the hollow heat dissipation fins 3, and the hollow heat dissipation fins 3 are used to improve the heat dissipation efficiency of the liquid, so that the device can cool the battery cell 108.

[0041] In a preferred embodiment, a plurality of battery cells 108 are connected in parallel via the nickel sheet 1010 and the control panel 4 , and the opening end of the protective housing 105 is disposed toward the card slot 104 .

[0042] In the above structure, the battery cells 108 are connected in parallel through the nickel sheet 1010 and the control panel 4, so that after a group of battery cells 108 and the protective shell 105 are separated from the shell assembly 1, the main body of the device 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 frame 501, and a plurality of sets of fan frames 502 are inlaid on the inner wall of the mounting frame 501 away from the housing assembly 1, and a fan body 503 is provided on the inner wall of the fan frame 502;

[0044] Both sides of the mounting frame 501 are fixedly equipped with air outlet pipes 504 connected to the inner cavity of the mounting frame 501, and the inner cavity of the mounting frame 501 is connected to the adjacent flow holes 1011 opened on the two sets of parallel protective shells 105 through the air outlet pipes 504, and the inner walls of the relatively far flow holes 1011 opened on the two sets of parallel protective shells 105 are bonded with water-absorbing filter cotton;

[0045] The mounting frame 501 and the inner wall of the housing assembly 1 are bonded and fixed.

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

[0047] By rotating the fan body 503, negative pressure is formed in the inner cavity of the mounting frame 501, so that wind is sucked in through relatively distant flow holes 1011 opened on two sets of parallel protective shells 105, and transmitted through the mounting frame 501 to the adjacent flow holes 1011 opened on the two sets of parallel protective shells 105, and discharged through the fan body 503. The air circulates on the surfaces of several battery cells 108, thereby achieving temperature heat dissipation in the space between the battery cells 108 and the protective shells 105. The water-absorbing filter cotton bonded to the inner walls of relatively distant flow holes 1011 opened on the two sets of parallel protective shells 105 absorbs moisture in the air, thereby increasing the dryness of the air between the battery cells 108 and the protective shells 105, thereby increasing the service life of the battery cells 108.

[0048] On the other hand, the mounting frame 501 and the circulation hole 1011 are connected by using the air outlet duct 504, so that the air outlet duct 504 can support the protective shell 105, so that when the device is shaken, the position between the protective shell 105 and the mounting slot 102 remains unchanged, thereby avoiding the problem of shaking between the protective shell 105 and the mounting slot 102, which causes the card slot 104 to cut the nickel sheet 1010.

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

[0050] In a preferred embodiment, the control panel 4 is used to manage the charging and discharging of the 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, so that the shaking force of the battery cell 108 can be absorbed by the buffer pad 107 during the movement of the equipment, and the fan body 503 rotates to make the wind be sucked in through the relatively distant flow holes 1011 opened on the two sets of parallel protective shells 105, and transmitted through the mounting frame 501 to the adjacent flow holes 1011 opened on the two sets of parallel protective shells 105 for discharge, and the air is circulated on the surface of several battery cells 108 to achieve the temperature heat dissipation of the space between the battery cell 108 and the protective shell 105, and the water-absorbing filter cotton bonded to the inner wall of the relatively distant flow holes 1011 opened on the two sets of parallel protective shells 105 absorbs the moisture in the air, so that the dryness of the air between the battery cell 108 and the protective shell 105 is increased, thereby increasing the service life of the battery cell 108;

[0052] The two groups of liquid pumps 2 are used to circulate the liquid in the inner cavity of the housing assembly 1 and the hollow heat dissipation fins 3, and the hollow heat dissipation fins 3 are used to improve the heat dissipation efficiency of the liquid, so that the device can cool the battery cell 108;

[0053] The protective shell 105 and the liquid tank 103 are sealed and fixed by sealant, so that when the device is moved, the protective shell 105 will not be separated from the liquid tank 103, and the end of the connecting seat 109 away from the battery cell 108 is tilted, so that the nickel sheet 1010 is tilted, so that when a group of battery cells 108 explodes, the protective shell 105 is used to guide the impact force of the explosion of the battery cell 108, and the impact force of the explosion of the battery cell 108 impacts the inner wall of the mounting slot 102 away from the heat dissipation component 5 , so that the battery cell 108 drives the protective shell 105 to move toward the side of the heat dissipation component 5, and then the battery cell 108 drives the nickel sheet 1010 and the card slot 104 to achieve cutting, so that the battery cell 108 and the control panel 4 are electrically disconnected, and at the same time, the protective shell 105 and the mounting slot 102 are used to separate the protective shell 105 and the shell component 1. After separation, the protective shell 105 maintains the protection of the battery cell 108 to avoid the problem of large-scale burning of the separated battery cell 108;

[0054] In 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, thereby solving the problem of deformation of the protective shell 105 and the mounting slot 102 caused by the impact force of the explosion of the battery cell 108.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although 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 with easy heat dissipation, comprising a housing assembly (1), characterized in that: The outer walls on both sides of the bottom of the shell component (1) are fixedly mounted with a liquid pump (2), the top of the liquid pump (2) is fixedly mounted with a hollow heat dissipation fin (3), the top of the shell component (1) is fixedly mounted with a control panel (4), and the outer wall of the shell component (1) is fixedly mounted with a heat dissipation component (5).

2. A lithium battery with easy heat dissipation according to claim 1, characterized in that: The housing assembly (1) comprises an outer shell (101), a plurality of mounting grooves (102) are provided on an outer wall of the outer shell (101) on a side close to the heat dissipation assembly (5), a liquid groove (103) is provided in the inner cavity of the outer shell (101), a clamping groove (104) is provided on an inner wall of the mounting groove (102) on a side away from the heat dissipation assembly (5), a protective shell (105) is sleeved on the inner wall of the mounting groove (102), and a reinforcing member is fixedly mounted on the inner wall of the protective shell (105). A rib (106) is provided, wherein a buffer pad (107) is fixedly mounted on the inner wall of the reinforcing rib (106), a battery cell (108) is arranged at one end of the buffer pad (107) close to the center of the protective shell (105), a connecting seat (109) is arranged on the side of the battery cell (108) away from the heat dissipation component (5), a nickel sheet (1010) is welded on the outer wall of the connecting seat (109), and a circulation hole (1011) is opened on the outer wall of the protective shell (105) close to the heat dissipation component (5).

3. A lithium battery with easy heat dissipation according to claim 2, characterized in that: The protective shell (105) and the outer wall of the mounting groove (102) on one side close to the heat dissipation component (5) are sealed and fixed by a 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 card slot (104), and the liquid in the inner cavity of the card slot (104) and 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 by a buffer pad (107) and the protective shell (105), a flow groove is arranged between the protective shell (105) and the reinforcing rib (106), there are two connecting seats (109), the two connecting seats (109) serve as the positive and negative electrodes of the battery cell (108) respectively, and the end of the connecting seat (109) away from the battery cell (108) is inclined.

4. The heat-dissipating lithium battery according to claim 3, characterized in that: The bottom water outlet ends of the two groups of liquid pumps (2) are both connected to the bottom inner cavity of the liquid tank (103), the top water inlet ends of the two groups of liquid pumps (2) are both connected to the bottom inner cavity of the hollow heat dissipation fins (3), and the top water inlet ends of the two groups of hollow heat dissipation fins (3) are both connected to the top inner cavity of the liquid tank (103).

5. The heat-dissipating lithium battery according to claim 4, characterized in that: A plurality of the battery cells (108) are connected in parallel via a nickel sheet (1010) and a control panel (4), and an opening end of the protective housing (105) is arranged toward one side of the card slot (104).

6. The heat-dissipating lithium battery according to claim 5, characterized in that: The heat dissipation component (5) comprises a mounting frame (501), a plurality of groups of fan frames (502) are embedded on the inner wall of a side of the mounting frame (501) away from the housing component (1), and a fan body (503) is arranged on the inner wall of the fan frame (502); Both sides of the mounting frame (501) are fixedly equipped with air outlet pipes (504) that are in communication with the inner cavity of the mounting frame (501), and the inner cavity of the mounting frame (501) is in communication with two sets of adjacent flow holes (1011) opened on the protective shells (105) arranged in parallel through the air outlet pipes (504), and the inner walls of the relatively distant flow holes (1011) opened on the two sets of parallel protective shells (105) are bonded with water-absorbing filter cotton; The mounting frame (501) and the inner wall of the housing assembly (1) are bonded and fixed.

7. The heat-dissipating lithium battery according to claim 6, 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).

8. The heat-dissipating lithium battery according to claim 7, characterized in that: The control panel (4) is used for managing the charging and discharging of a plurality of battery cells (108).

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