Lithium battery with uniform heat dissipation function

Abstract

The invention relates to a lithium battery with a uniform heat dissipation function, and belongs to the technical field of lithium batteries, the lithium battery comprises an outer shell, the top of the outer shell is provided with a top cover, the inner wall of the outer shell is provided with a support frame through a fixing bolt, individual batteries are clamped on the support frame, and heat dissipation assemblies are arranged between the individual batteries; the heat dissipation assembly comprises a heat dissipation pipe body with the side wall tightly attached to the outer walls of the individual batteries, the heat dissipation pipe body is rectangular, heat conduction strips are embedded in the side wall, attached to the individual batteries, of the heat dissipation pipe body, an air inlet mechanism is fixed to the bottom of the heat dissipation pipe body, a filtering assembly is arranged at the bottom in the outer shell, and an air outlet fan is arranged on the top cover. The bottom of the outer shell is provided with an air inlet opening, the tops of the individual batteries are provided with stage ear ends connected with the positive electrode and the negative electrode respectively, the outer wall of the outer shell is provided with an outer output end electrically connected with the stage ear ends, the internal heat dissipation structure is simple and effective, the good heat dissipation treatment effect can be achieved, and extra power consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and in particular to a lithium battery with uniform heat dissipation function. Background Art

[0002] Lithium battery is a type of battery commonly used by people. It is widely used due to its high density, light weight and long service life. In people's daily life, it is used to power various portable electronic devices. With the development of science and technology and the stable application of lithium batteries, lithium batteries are also used to store electrical energy in some vehicles. The high energy density of lithium batteries can provide vehicles with longer battery life. During the storage and release of electrical energy, chemical reactions will occur inside the lithium battery, thereby generating a large amount of heat energy. If a large amount of electrical energy is converted in a short period of time, it will cause damage to the lithium battery or even explosion. In order to better maintain the stability of the battery performance of the lithium battery and maintain the service life of the lithium battery, it is very necessary to cool the lithium battery.

[0003] As shown in the Chinese invention patent application document, publication number CN118231853A, a lithium energy storage battery with uniform heat dissipation is disclosed, including a battery box, wherein a plurality of water cooling components are arranged inside the battery box, and the water cooling plate has two flow channels, and the water inlet and outlet directions are opposite. When the coolant in the first flow channel circulates from left to right, the coolant absorbs the heat of the battery cell and the temperature gradually increases, and a temperature difference is generated on both sides of the water cooling plate. At this time, the coolant in the second flow channel circulates from right to left to cool the side of the water cooling plate with a higher temperature. The second flow channel and the first flow channel cooperate to have a complementary effect, which can reduce the temperature difference of the water cooling plate, so that the battery cell can be dissipated more evenly, greatly improving the heat dissipation effect, and the outer surface of each battery cell is in contact with the surface of the water cooling plate, so that the heat of the battery cell can be directly conducted out, further improving the heat dissipation effect.

[0004] The above document uses a water cooling plate to dissipate heat from the battery cells, which can directly dissipate the heat from the battery cells. The two-way coolant can dissipate heat more evenly. However, the above document also records the use of an intake fan and an exhaust fan to circulate air in the battery box, which can bring out the heat emitted by the battery cells. The reciprocating swing of the louver can change the direction of air flow, avoid the airflow blowing to only one place, and allow the air to flow more evenly in the battery box, greatly improving the heat dissipation efficiency.

[0005] However, the air intake assembly composed of the intake fan and the exhaust fan is difficult to function effectively because the water cooling assembly and the battery cell are in close contact and the airflow cannot contact the battery cell. As a result, the mechanism cannot function effectively, the air cooling and water cooling do not work well together, the structural setting is redundant, and the heat dissipation cannot be maximized. Summary of the invention

[0006] In order to overcome the technical defects of the prior art, the present invention provides a lithium battery with uniform heat dissipation function, the internal heat dissipation structure is simple and effective, and can exert a good heat dissipation treatment effect and reduce additional power consumption.

[0007] The technical solution adopted by the present invention is: comprising an external shell, the external shell is an external protection component of the individual battery, and can provide a closed environmental space for cooling the individual battery, a top cover is provided on the top of the external shell, a flange is provided on the top edge of the external shell, the top cover is installed on the flange by sealing bolts, a support frame is installed on the inner wall of the external shell by fixing bolts, the support frame can be used to limit the position and spacing of the individual batteries, so as to facilitate the regular placement of the individual batteries, the support frame includes a right-angle support plate located at the bottom edge of the individual battery, side baffles are fixed on both sides of the right-angle support plate, the A base block is fixed to the bottom of the right-angle support plate, a horizontal plate for fixing to the inner wall of the outer shell is fixed on the side wall of the base block, a connecting plate is fixed between the right-angle support plates for fixing different individual batteries, individual batteries are clamped and installed on the support frame, and the individual batteries are at least two. A heat dissipation component is provided between the individual batteries, and the heat dissipation component is used to transfer the heat emitted by the individual batteries, so as to ensure that the inside of the individual batteries has a good working temperature. The heat dissipation component includes a heat dissipation pipe body with a side wall tightly attached to the outer wall of the individual battery, and the heat dissipation pipe body is made of heat-conducting material, which can be used for heat conduction when in use. Thermal grease is used to enhance the heat conduction rate. The shape of the heat dissipation tube body is rectangular, and a heat-conducting strip is embedded on the side wall where the heat dissipation tube body and the individual battery are in contact. The heat-conducting strip is used to expand the heat conduction range. An air intake mechanism is fixed to the bottom of the heat dissipation tube body. The air intake mechanism is used to guide the airflow from the bottom of the heat dissipation tube body upward and can limit the airflow within the heat dissipation tube body. A filter component is provided at the bottom of the outer shell. Due to the changeable external environment, there are impurities and dust in the air. The filter component is used to filter the air entering from the bottom of the outer shell to purify the air. An outlet is provided on the top cover. The air fan, in order to further plan a more reasonable air flow direction, the exhaust fan draws out the air flow inside the outer shell, and an air inlet opening is provided at the bottom of the outer shell, and the air can directly enter the outer shell from the air inlet opening. When necessary, a primary filter can be set in the air inlet opening to prevent large debris from entering. The top of the individual battery is provided with a stage ear end connected to the positive and negative poles respectively. When the lithium battery is charged and discharged, the stage ear end often generates more heat. When there are multiple individual batteries, the stage ear ends of the same polarity are connected in parallel, and the outer wall of the outer shell is provided with an external output terminal electrically connected to the stage ear end.

[0008] Preferably, in order to facilitate the replacement and transfer of heat, cooling pipes are penetrated inside the heat dissipation pipe body, and the cooling pipes are respectively located at four angles of the heat dissipation pipe body, and the cooling pipes are made of heat-conducting material. A deformation zone is provided on the side wall of the heat dissipation pipe body located between the individual batteries. During the use of the individual batteries, there will be a certain expansion. In order to ensure that the heat dissipation pipe body and the individual batteries can be better and continuously fitted, the deformation zone is provided to deform first after being subjected to force, thereby releasing part of the space. A spoiler curved plate is provided around the inner wall of the heat dissipation pipe body, and the spoiler plate is a curved strip plate that is fixed on one side of the heat dissipation pipe body and can block airflow. Space is still left between the edges of the spoiler curved plate to allow airflow to pass through, and the trajectory of the spoiler curved plate is a spiral rise. A drainage notch is provided on the spoiler curved plate, and the drainage notch is used to further mix the airflow. The thermally conductive strip extends on both sides of the heat dissipation pipe body, and the side wall of the thermally conductive strip is in close contact with the outer wall of the individual battery.

[0009] Preferably, in order to facilitate heat exchange, the bottom end of the cooling tube extends downward to the bottom of the heat dissipation tube body, and the bottom ends of the paired cooling tubes are connected by a transverse tube, and bottom heat dissipation fins are fixed on the transverse tube. The bottom heat dissipation fins are vertically arranged to avoid excessive obstruction of airflow. The cooling tube can be filled with coolant or connected to an external coolant source through the top end, thereby continuously cooling the individual batteries.

[0010] Preferably, in order to facilitate actively directing the airflow into the heat dissipation tube body, the air intake mechanism includes a sealing plate fixed to the bottom edge of the heat dissipation tube body, the bottom of the sealing plate is provided with a frame-shaped outer wall, the heat dissipation fins are located inside the frame-shaped outer wall, the bottom of the frame-shaped outer wall is fixed with an air intake bottom plate by connecting bolts, and the air intake bottom plate is provided with an air intake fan.

[0011] Preferably, in order to utilize horizontal heat sinking fins to cool the environment near the stage ear end, the top end of the cooling tube extends upward, and a pair of the cooling tubes are provided with horizontal heat sinking fins, the horizontal heat sinking fins are located on one side of the stage ear end, and there are more than three horizontal heat sinking fins, which are stacked on the cooling tubes in sequence, and gaps are left between adjacent horizontal heat sinking fins.

[0012] Preferably, in order to facilitate the separated part of the airflow to blow to the two sides of the heat dissipation tube body, one side of the horizontal heat dissipation fin is located above the heat dissipation tube body to form a wind-shielded side, and the horizontal heat dissipation fins are provided on both sides of the heat dissipation tube body, and the distance between the wind-shielded sides of the horizontal heat dissipation fins at different heights decreases with increasing height.

[0013] Preferably, in order to facilitate filtering of the air entering the outer shell, the filter assembly includes a supporting side plate fixed to the bottom of the outer shell, a clamping shaft is rotatably installed between the supporting side plates, an intermediate filter belt is sleeved at the center position of the clamping shaft, and the outer wall of the clamping shaft is provided with a protrusion, and the protrusion is located on both sides of the intermediate filter belt. One end of the clamping shaft extends to the outside of the supporting side plate and is dynamically connected to the drive motor through a transmission shaft.

[0014] Preferably, in order to avoid blocking the smooth flow of air, an auxiliary rod is rotatably installed on the support side panel, the auxiliary rod is located above the clamping shaft, and the auxiliary rod on the support side panel is located on different sides. An outer filter belt is sleeved on the protrusion and the auxiliary rod, and the edge portion of the outer filter belt is pressed on the middle filter belt. This can ensure the sealing effect and prevent external air from directly entering the external shell. An auxiliary rod is provided on the outer filter belt on one side, which is used to lift one side of the outer filter belt to form a triangle, while the outer filter belt on the opposite side lifts the other side, leaving only the bottom of the outer filter belt still flat, and a cleaning mechanism is fixed to the bottom of the external shell.

[0015] Preferably, in order to facilitate the cleaning of impurities attached to the outer filter belt and the middle filter belt, a strip opening is opened at the bottom of the outer shell, and the strip opening is located below the middle filter belt and the outer filter belt. Preferably, the bottom of the outer filter belt needs to fit the bottom of the outer shell, and if necessary, an upper convex strip can be set at the bottom of the outer shell to contact the outer filter belt and the middle filter belt. The cleaning mechanism includes a collecting box fixed to the bottom of the outer shell. In order to facilitate the removal of accumulated impurities, a sealing cover can be set at the bottom of the collecting box to facilitate opening or closing. A cleaning roller is rotatably installed between the inner walls of the collecting box. Preferably, in order to better carry out the cleaning process, nylon bristles can be set on the outer wall of the cleaning roller. The outer wall of the cleaning roller passes through the strip opening and contacts the bottom of the middle filter belt and the outer filter belt. One end of the cleaning roller extends outside the collecting box and is dynamically connected to the transmission shaft through a transmission belt. The bottom of the outer shell is provided with a bottom notch allowing the transmission belt to pass through, and a sealing cover is sleeved on the transmission shaft.

[0016] The beneficial effects of the present invention are as follows: the internal heat dissipation structure of the present invention is simple and effective, can exert a good heat dissipation treatment effect, and can reduce additional power consumption. The exhaust fan on the top cover together with the air intake fan guides the airflow in the internal shell. Since the hot air flow will drift upward, making the air flow flow from bottom to top can save more energy. The cooling tube can be filled with coolant or connected to an external coolant source through the top, so that the individual batteries can be continuously cooled. The individual batteries can be cooled together with the flowing airflow, so that the individual batteries are maintained in a good working state, and the heat dissipation tube body can make more full use of the flowing cooling airflow, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a bottom upward structural schematic diagram of the present invention.

[0019] Figure 3 It is a schematic diagram of the internal structure of the outer shell of the present invention.

[0020] Figure 4 It is a schematic diagram of the individual battery installation structure of the present invention.

[0021] Figure 5 It is a schematic diagram of the support frame structure of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the air intake mechanism of the present invention.

[0023] Figure 7 It is a schematic diagram of the internal structure of the frame-shaped outer wall of the present invention.

[0024] Figure 8 It is a schematic diagram of the internal structure of the heat dissipation pipe body of the present invention.

[0025] Fig. 9 It is a schematic diagram of the horizontal heat dissipation fin structure of the present invention.

[0026] Fig.10 It is a schematic diagram of the structure of the spoiler curved plate of the present invention.

[0027] Fig.11 It is a schematic diagram of the structure of the filter assembly of the present invention.

[0028] Fig.12 It is a schematic diagram of the cross-sectional structure of the filter assembly of the present invention.

[0029] Fig.13 It is a schematic diagram of the internal structure of the sealing cover of the present invention.

[0030] Fig.14It is a schematic diagram of the cleaning mechanism structure of the present invention.

[0031] Explanation of reference numerals: In the figure: 1, outer shell; 101, top cover; 102, exhaust fan; 103, air inlet opening; 104, external output terminal; 2, support frame; 3, individual battery; 301, level ear end; 4, heat dissipation component; 401, heat dissipation pipe body; 402, heat conduction strip; 403, deformation area; 404, spoiler curved plate; 405, drainage notch; 5, air intake mechanism; 501, sealing plate; 502, frame outer wall; 503, Intake bottom plate; 504, intake fan; 6, filter assembly; 601, support side plate; 602, clamping shaft; 603, middle filter belt; 604, drive motor; 605, auxiliary rod; 606, outer filter belt; 7, cooling pipe; 701, horizontal pipe; 702, bottom cooling fin; 703, horizontal cooling fin; 8, cleaning mechanism; 801, collection box; 802, cleaning roller; 803, transmission belt; 804, sealing cover. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1-Figure 14As shown, this embodiment provides a lithium battery with uniform heat dissipation function, including an external shell 1, the external shell 1 is an external protection component of the individual battery 3, and can provide a closed environmental space for cooling the individual battery 3. A top cover 101 is provided on the top of the external shell 1, and a flange is provided on the top edge of the external shell 1. The top cover 101 is installed on the flange through sealing bolts, and a support frame 2 is installed on the inner wall of the external shell 1 through fixing bolts. The support frame 2 can be used to limit the position and spacing of the individual battery 3, so as to facilitate the regular placement of the individual battery 3. The support frame 2 includes a right-angle support plate located at the bottom edge of the individual battery 3, and side baffles are fixed on both sides of the right-angle support plate. A base block is fixed at the bottom, a horizontal plate for fixing to the inner wall of the outer shell 1 is fixed on the side wall of the base block, a connecting plate is fixed between the right-angle brackets for fixing different individual batteries 3, and individual batteries 3 are clamped and installed on the support frame 2. There are at least two individual batteries 3, and a heat dissipation component 4 is provided between the individual batteries 3. The heat dissipation component 4 is used to transfer the heat emitted by the individual batteries 3, so as to ensure that the inside of the individual batteries 3 has a good working temperature. The heat dissipation component 4 includes a heat dissipation pipe body 401 whose side wall is tightly attached to the outer wall of the individual battery 3. The heat dissipation pipe body 401 is made of heat-conducting material. When in use, thermal grease can be used to enhance the heat conduction rate. The outer shape of 401 is rectangular, and a heat conducting strip 402 is embedded on the side wall where the heat dissipation tube body 401 and the individual battery 3 are in contact. The heat conducting strip 402 is used to expand the heat conduction range. An air intake mechanism 5 is fixed to the bottom of the heat dissipation tube body 401. The air intake mechanism 5 is used to guide the airflow from the bottom of the heat dissipation tube body 401 upward and can limit the airflow within the heat dissipation tube body 401. A filter component 6 is provided at the bottom of the outer shell 1. Due to the changeable external environment, there are impurities and dust in the air. The filter component 6 is used to filter the air entering from the bottom of the outer shell 1 to purify the air. An exhaust fan 102 is provided on the top cover 101. In order to further A more reasonable airflow direction is planned, and the exhaust fan 102 draws out the airflow inside the outer shell 1. An air inlet opening 103 is provided at the bottom of the outer shell 1, and air can directly enter the outer shell 1 from the air inlet opening 103. When necessary, a primary filter can be set in the air inlet opening 103 to prevent large debris from entering. The top of the individual battery 3 is provided with a stage ear end 301 connected to the positive and negative electrodes respectively. When the lithium battery is charged and discharged, the stage ear end 301 often generates more heat. When there are multiple individual batteries 3, the stage ear ends 301 of the same polarity are connected in parallel, and the outer wall of the outer shell 1 is provided with an external output terminal 104 electrically connected to the stage ear end 301.

[0033] A cooling tube 7 is passed through the heat dissipation tube body 401. The cooling tube 7 is respectively located at four angles of the heat dissipation tube body 401. The cooling tube 7 is made of heat-conducting material. A deformation zone 403 is provided on the side wall of the heat dissipation tube body 401 located between the individual batteries 3. During the use of the individual batteries 3, there will be a certain expansion. In order to ensure that the heat dissipation tube body 401 and the individual batteries 3 can be well and continuously fitted, the deformation zone 403 is provided to deform first after being stressed to release part of the space. A spoiler curved plate 404 is provided around the inner wall of the heat dissipation tube body 401. The spoiler is a curved strip fixed on one side of the inner wall of the heat dissipation tube body 401 that can block airflow. There is still space between the edges of the spoiler curved plate 404 to allow airflow to pass through, and the trajectory of the spoiler curved plate 404 In order to spiral up, a drainage notch 405 is provided on the spoiler curved plate 404, and the drainage notch 405 is used to further mix the airflow. The heat conductive strip 402 extends on both sides of the heat dissipation tube body 401, and the side wall of the heat conductive strip 402 is in close contact with the outer wall of the individual battery 3, which can facilitate the replacement and transfer of heat. The bottom end of the cooling tube 7 extends downward to the bottom of the heat dissipation tube body 401, and the bottom ends of the paired cooling tubes 7 are connected by a transverse tube 701, and the bottom heat dissipation fins 702 are fixed on the transverse tube 701. The bottom heat dissipation fins 702 are vertically arranged to avoid excessive obstruction of the flow of airflow. The cooling tube 7 can be filled with coolant or connected to an external coolant source through the top end, so as to continuously cool the individual battery 3, which can facilitate heat exchange.

[0034] The air intake mechanism 5 includes a sealing plate 501 fixed to the bottom edge of the heat dissipation tube body 401, a frame-shaped outer wall 502 is provided at the bottom of the sealing plate 501, the heat dissipation fins are located inside the frame-shaped outer wall 502, an air intake bottom plate 503 is fixed to the bottom of the frame-shaped outer wall 502 by connecting bolts, and an air intake fan 504 is provided on the air intake bottom plate 503, which can facilitate the active introduction of airflow into the heat dissipation tube body 401.

[0035] The top end of the cooling tube 7 extends upward, and a pair of cooling tubes 7 are provided with horizontal heat dissipation fins 703, the horizontal heat dissipation fins 703 are located on one side of the stage ear end 301, and there are more than three horizontal heat dissipation fins 703, which are stacked on the cooling tube 7 in sequence, and gaps are left between adjacent horizontal heat dissipation fins 703, so that the horizontal heat dissipation fins 703 can be used to cool the environment next to the stage ear end 301, and one side of the horizontal heat dissipation fins 703 is located above the heat dissipation tube body 401 to form a windshield side, and horizontal heat dissipation fins 703 are provided on both sides of the heat dissipation tube body 401, and the distance between the windshield sides of the horizontal heat dissipation fins 703 of different heights decreases with increasing height, so that it is convenient to separate part of the airflow to blow to the two sides of the heat dissipation tube body 401 on both sides.

[0036] The filter assembly 6 includes a supporting side plate 601 fixed to the bottom of the outer shell 1, a clamping shaft 602 is rotatably installed between the supporting side plates 601, an intermediate filter belt 603 is sleeved at the center of the clamping shaft 602, and a protrusion is provided on the outer wall of the clamping shaft 602, and the protrusion is located on both sides of the intermediate filter belt 603. One end of the clamping shaft 602 extends to the outside of the supporting side plate 601 and is dynamically connected to the drive motor 604 through a transmission shaft, so that it is convenient to filter the air entering the outer shell 1. An auxiliary rod 605 is rotatably installed on the supporting side plate 601, and the auxiliary rod 605 is located at the clamping shaft 60 2, the auxiliary rod 605 on the supporting side plate 601 is located on different sides, and an outer filter belt 606 is sleeved on the protruding portion and the auxiliary rod 605, and the edge portion of the outer filter belt 606 is pressed on the middle filter belt 603, so as to ensure the sealing effect and prevent external air from directly entering the outer shell 1. An auxiliary rod 605 is provided on the outer filter belt 606 on one side, which is used to lift one side of the outer filter belt 606 to form a triangle, while the outer filter belt 606 on the opposite side lifts the other side, leaving only the bottom of the outer filter belt 606 still flat, and a clear filter belt 606 is fixed on the bottom of the outer shell 1 The cleaning mechanism 8 can avoid blocking the smooth flow of airflow. A strip opening is provided at the bottom of the outer shell 1, and the strip opening is located below the middle filter belt 603 and the outer filter belt 606. Preferably, the bottom of the outer filter belt 606 needs to fit the bottom of the outer shell 1. If necessary, an upper convex strip can be provided at the bottom of the outer shell 1 to contact the outer filter belt 606 and the middle filter belt 603. The cleaning mechanism 8 includes a collection box 801 fixed to the bottom of the outer shell 1. In order to facilitate the removal of accumulated impurities, a sealing cover can be provided at the bottom of the collection box 801 to facilitate opening or closing. The collection box 801 A cleaning roller 802 is rotatably installed between the inner walls. In order to better carry out the cleaning process, nylon bristles can be set on the outer wall of the cleaning roller 802. The outer wall of the cleaning roller 802 passes through the strip opening and contacts the bottom of the middle filter belt 603 and the outer filter belt 606. One end of the cleaning roller 802 extends to the outside of the collecting box 801 and is dynamically connected to the transmission shaft through the transmission belt 803. A bottom notch is provided at the bottom of the outer shell 1 to allow the transmission belt 803 to pass through, and a sealing cover 804 is provided on the transmission shaft, which makes it easy to clean impurities attached to the outer filter belt 606 and the middle filter belt 603.

[0037] When in use, the exhaust fan 102 on the top cover 101 together with the intake fan 504 guides the airflow in the inner shell. Since the hot air flow will drift upward, making the air flow flow from bottom to top can save energy. In addition, the cooling tube 7 can be filled with coolant or connected to an external coolant source through the top, so as to continuously cool down the individual battery 3. The flowing air flow can cool down the individual battery 3 together, so as to maintain the individual battery 3 in a good working state. The heat dissipation tube body 401 can make fuller use of the flowing cooling air flow, so as to improve the cooling efficiency. The air flow first flows from the outside to the outside. The bottom of the inner shell 1 enters into the outer shell 1, and the driving motor 604 can drive the clamping shaft 602 to rotate, so that the middle filter belt 603 and the outer filter belt 606 rotate, and then the driving motor 604 can simultaneously rotate the cleaning roller 802 through the transmission belt 803. Since the cleaning roller 802 and the outer filter belt 606 have the same rotation direction, the edge of the cleaning roller 802 can better sweep the outer surface of the outer filter belt 606 for cleaning, and one side of the outer filter belt 606 is lifted up, so that the airflow can directly flow into the outer shell 1 through the lifted part after passing through the bottom, which can ensure the smooth flow of the airflow.

[0038] Then, the air intake fan 504 can introduce the airflow into the frame-shaped outer wall 502, and the airflow can exchange heat with the bottom cooling fins 702, and then enter the cooling pipe body 401. The inner wall of the cooling pipe body 401 is vertical, and it is difficult to achieve a good heat exchange effect by directly flowing through. Therefore, the spoiler curved plate 404 can interfere with the flow direction of part of the airflow, so as to better replace the heat. The heat exchange range can be expanded through the cooling pipe body 401 and the thermal conductive strip 402, so as to better cool the individual batteries 3. After flowing out of the cooling pipe body 401, the airflow can be partially blocked by the horizontal cooling fins 703 and blown to the level ear ends 301 on both sides, so as to avoid excessive local heat at the level ear ends 301.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A lithium battery with uniform heat dissipation function, comprising an outer shell (1), a top cover (101) being provided on the top of the outer shell (1), a support frame (2) being mounted on the inner wall of the outer shell (1) by means of fixing bolts, and individual batteries (3) being clamped and mounted on the support frame (2), characterized in that: There are at least two individual batteries (3), a heat dissipation assembly (4) is provided between the individual batteries (3), the heat dissipation assembly (4) comprises a heat dissipation tube body (401) whose side wall is closely attached to the outer wall of the individual battery (3), the heat dissipation tube body (401) has a rectangular shape, and a heat conducting strip (402) is embedded in the side wall of the heat dissipation tube body (401) and the individual battery (3) that are in contact with each other, an air intake mechanism (5) is fixed to the bottom of the heat dissipation tube body (401), a filter assembly (6) is provided at the bottom of the outer shell (1), an air outlet fan (102) is provided on the top cover (101), an air intake opening (103) is provided at the bottom of the outer shell (1), a stage ear end (301) connected to the positive electrode and the negative electrode respectively is provided on the top of the individual battery (3), and an external output terminal (104) electrically connected to the stage ear end (301) is provided on the outer wall of the outer shell (1).

2. The lithium battery with uniform heat dissipation function according to claim 1, characterized in that: A cooling pipe (7) is provided inside the heat dissipation pipe body (401), and the cooling pipe (7) is respectively located at four angles of the heat dissipation pipe body (401). A deformation zone (403) is provided on the side wall of the heat dissipation pipe body (401) located between the individual batteries (3). A spoiler curved plate (404) is provided around the inner wall of the heat dissipation pipe body (401), and a drainage notch (405) is provided on the spoiler curved plate (404). The heat conduction strip (402) extends to both sides of the heat dissipation pipe body (401), and the side wall of the heat conduction strip (402) is in close contact with the outer wall of the individual battery (3).

3. The lithium battery with uniform heat dissipation function according to claim 2, characterized in that: The bottom end of the cooling tube (7) extends downward to the bottom of the heat dissipation tube body (401), and the bottom ends of the paired cooling tubes (7) are connected via a transverse tube (701), and a bottom heat dissipation fin (702) is fixed on the transverse tube (701).

4. The lithium battery with uniform heat dissipation function according to claim 3, characterized in that: The air intake mechanism (5) comprises a sealing plate (501) fixed to the bottom edge of the heat dissipation tube body (401); a frame-shaped outer wall (502) is provided at the bottom of the sealing plate (501); the heat dissipation fins are located inside the frame-shaped outer wall (502); an air intake bottom plate (503) is fixed to the bottom of the frame-shaped outer wall (502) via connecting bolts; and an air intake fan (504) is provided on the air intake bottom plate (503).

5. The lithium battery with uniform heat dissipation function according to claim 4, characterized in that: The top end of the cooling tube (7) extends upward, and a pair of the cooling tubes (7) are provided with horizontal heat dissipation fins (703), the horizontal heat dissipation fins (703) are located on one side of the step ear end (301), and more than three horizontal heat dissipation fins (703) are provided. The horizontal heat dissipation fins (703) are stacked on the cooling tube (7) in sequence, and gaps are left between adjacent horizontal heat dissipation fins (703).

6. The lithium battery with uniform heat dissipation function according to claim 5, characterized in that: One side of the horizontal heat dissipation fin (703) is located above the heat dissipation tube body (401) to form a wind-shielding side, and the horizontal heat dissipation fin (703) is provided on both sides of the heat dissipation tube body (401), and the distance between the wind-shielding sides of the horizontal heat dissipation fins (703) at different heights decreases as the height increases.

7. The lithium battery with uniform heat dissipation function according to claim 1, characterized in that: The filter assembly (6) comprises a supporting side plate (601) fixed to the bottom of the outer shell (1); a clamping shaft (602) is rotatably mounted between the supporting side plates (601); an intermediate filter belt (603) is sleeved at the center of the clamping shaft (602); an outer wall of the clamping shaft (602) is provided with a protrusion, and the protrusion is located on both sides of the intermediate filter belt (603); one end of the clamping shaft (602) extends outside the supporting side plate (601) and is dynamically connected to a drive motor (604) via a transmission shaft.

8. The lithium battery with uniform heat dissipation function according to claim 7, characterized in that: An auxiliary rod (605) is rotatably mounted on the supporting side plate (601), the auxiliary rod (605) being located above the clamping shaft (602), the auxiliary rod (605) on the supporting side plate (601) being located on different sides, an outer filter belt (606) being sleeved on the protruding portion and the auxiliary rod (605), and a cleaning mechanism (8) being fixed to the bottom of the outer shell (1).

9. The lithium battery with uniform heat dissipation function according to claim 8, characterized in that: The bottom of the outer shell (1) is provided with a strip opening, the strip opening being located below the middle filter belt (603) and the outer filter belt (606); the cleaning mechanism (8) comprises a collecting box (801) fixed at the bottom of the outer shell (1); a cleaning roller (802) is rotatably mounted between the inner walls of the collecting box (801); the outer wall of the cleaning roller (802) passes through the strip opening and contacts the bottom of the middle filter belt (603) and the outer filter belt (606); one end of the cleaning roller (802) extends outside the collecting box (801) and is dynamically connected to the transmission shaft via a transmission belt (803); a bottom notch is provided at the bottom of the outer shell (1) to allow the transmission belt (803) to pass through; and a sealing cover (804) is sleeved on the transmission shaft.

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