Parallel redundancy glue type high heat dissipation lithium ion battery charger

Abstract

This invention discloses a parallel redundant potting type high heat dissipation lithium-ion battery charger, including a housing and a main board inside the housing; a heat dissipation channel is fixedly connected to the top of the main board, the heat dissipation channel includes a heat dissipation pipe, and the heat dissipation pipe is fixedly connected to an air inlet end and an exhaust end opened in the housing; a reversing cavity is opened near the air inlet end of the heat dissipation end, and a valve channel one and a valve channel two are provided in the reversing cavity to change the gas flow direction of the heat dissipation pipe; in this invention, by closing or reducing the opening of valve channel one, and gradually increasing the opening of valve channel two from a closed state, the gas flow state in the heat dissipation pipe is switched from a direct flow state between the air inlet end and the exhaust end to a state where valve channel one is closed and valve channel two connects the inner cavity of the housing to the heat dissipation pipe, or a state where valve channel one and valve channel two are half open, so that there is gas flow in both the air inlet end and the housing, so that when the main board is used at high power, the high temperature generated is not stagnant in the housing, causing the housing to overheat and resulting in low performance of the main board and inability to use high power.

Description

Technical Field

[0001] This invention relates to the field of battery charging technology, and in particular to a parallel redundant potting type high heat dissipation lithium-ion battery charger. Background Technology

[0002] Lithium-ion battery chargers are dedicated intelligent electronic devices for the safe and efficient charging of lithium-ion battery packs. The parallel redundant potting compound type battery charger employs an N+X parallel redundant architecture at its core, supporting hot-swappable modules. A single module failure does not affect system operation, ensuring extremely high power supply reliability. Simultaneously, critical internal circuits are integrally sealed with thermally conductive potting compound, providing excellent dustproof, waterproof, corrosion-resistant, and vibration-resistant capabilities, while also significantly improving heat dissipation efficiency and long-term operational stability.

[0003] For example, patent CN114914985A, entitled "A Battery Charger with a Heat Dissipation Structure," with an authorization announcement date of 20220816, includes a housing. Symmetrically arranged heat dissipation windows are located on opposite sides of the housing, each window containing a dustproof mesh. A rotating shaft is mounted on the heat dissipation window, and an adjustable baffle is fixed to the rotating shaft. A rotating gear is located at one end of the rotating shaft. The housing has a control cavity, within which a first rack slidably connects and meshes with the rotating gear. The housing also has a control structure for controlling the sliding of the first rack. A first buffer structure is also provided on the side of the housing with the heat dissipation windows. The first buffer structure includes a first buffer plate, a buffer rod, a sliding plate, and a first buffer spring. A control plate is vertically fixed to one end of the first rack, and a toggle block is fixed to the sliding plate to move the control plate. This solves the problems of existing open heat dissipation structures being prone to dust accumulation and damage to electronic components from impacts, both of which affect the charger's lifespan.

[0004] The shortcomings of existing technology are that, due to the heat dissipation structures such as heat dissipation holes and windows in the battery charger, the open heat dissipation method makes it easy for dust to accumulate inside the charger during the charging process. The large amount of heat generated by the electrical components due to the dust accumulation cannot be easily dissipated, which can easily cause internal damage to the battery charger. This can lead to poor performance of the battery charger under high power output due to high temperature. Summary of the Invention

[0005] The purpose of this invention is to provide a parallel redundant potting type high heat dissipation lithium-ion battery charger. Through a transmission component, valve channel one and valve channel two are moved, causing valve channel one to close or its opening to shrink, while the opening of valve channel two gradually increases from a closed state. This switches the gas flow state in the heat pipe from a direct connection between the inlet and outlet to a state where valve channel one is closed and valve channel two connects the inner cavity of the casing to the heat pipe, or valve channels one and two are partially open, ensuring gas flow both at the inlet and inside the casing. This prevents the high temperatures generated during high-power operation of the motherboard from stagnating within the casing, which could lead to overheating and reduced motherboard performance, preventing high-power operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a parallel redundant potting type high heat dissipation lithium-ion battery charger, including a housing and a main board disposed inside the housing; a heat dissipation channel is fixedly connected to the top of the main board, the heat dissipation channel including a heat dissipation pipe, the heat dissipation pipe being fixedly connected to an air inlet end and an exhaust end opened in the housing; a reversing cavity is opened near the air inlet end of the heat dissipation end, the reversing cavity being provided with a valve channel one and a valve channel two for changing the gas direction of the heat dissipation pipe; it also includes a control component, the control component being driven by a transmission assembly, the transmission assembly driving the opening and closing of valve channel one and valve channel two, for switching the opening and closing states of valve channel one and valve channel two; when the control component is at maximum power, the transmission assembly drives the switching of valve channel one and valve channel two, by reducing the air inlet opening of valve channel one and increasing the valve channel two connecting to the inner cavity of the housing, so as to achieve heat dissipation of the main board by the heat dissipation pipe and gas flow in the inner cavity of the housing.

[0007] As a further description of the above technical solution:

[0008] The heat sink is fixed inside the heat sink, and the heat sink array is distributed inside the heat sink. A fan is installed inside the heat sink, and the fan is located near the exhaust end.

[0009] As a further description of the above technical solution:

[0010] The valve channel two includes a rectangular bar, one end of which is symmetrically fixed with a support bar, one end of which is fixed with a support plate, and one end of which is fixed with a limit frame. A connecting shaft is provided in the two limit frames, and a sealing plate is movably provided at one end of the connecting shaft. The sealing plate is rotatably located in the slot opened by the heat dissipation pipe.

[0011] As a further description of the above technical solution:

[0012] The valve channel includes a rectangular frame, and multiple partitions are provided inside the rectangular frame. One end of each partition is rotatably connected to a rotating shaft. A gear at the top of the rotating shaft meshes with a rack. One end of the rack is fixedly connected to a connecting rod, and one end of the connecting rod is fixedly connected to a connecting arm, which is fixedly connected to a support rod.

[0013] As a further description of the above technical solution:

[0014] The control component includes a knob that is rotatably mounted outside the housing. The knob passes through the housing and is fixedly connected to a rotating shaft. A rheostat is mounted on the rotating shaft. A swing arm is fixedly connected to one end of the rotating shaft near the rheostat. A wheel is rotatably connected to one end of the swing arm. A central shaft is provided at one end of the wheel that passes through one end of the swing arm.

[0015] As a further description of the above technical solution:

[0016] A limiting strip is fitted at the end of the shaft away from the swing arm. A sliding strip is fixedly connected to the top of the limiting strip. A sliding rod is slidably connected to one end of the sliding strip. Fixed blocks are symmetrically fixed to both ends of the sliding rod and are fixed to the machine housing.

[0017] As a further description of the above technical solution:

[0018] One end of the fixed block is fixedly connected to a fixed lug, and a connecting rod is movably provided between the two fixed lugs. One end of the connecting rod is fixedly connected to a sliding block, and the end of the sliding block away from the connecting rod is slidably connected to the sliding rod.

[0019] As a further description of the above technical solution:

[0020] One end of the fixed block is fixedly connected to a fixed lug, and a connecting rod is movably provided between the two fixed lugs. One end of the connecting rod is fixedly connected to a sliding block, and the end of the sliding block away from the connecting rod is slidably connected to the sliding rod.

[0021] As a further description of the above technical solution:

[0022] The connector includes a pull rope, on one side of which are wound a guide frame one, a guide frame two, and a guide frame three, all of which are fixed to the housing.

[0023] As a further description of the above technical solution:

[0024] A horizontal bar is fixed to one end of the pull rope away from the fastening block. A baffle is fixed to one end of the horizontal bar, and the baffle is slidably disposed in a ventilation slot opened in the housing. A filter screen is provided in the ventilation slot, and the filter screen is in contact with a cleaning strip fixed to the bottom end of the baffle.

[0025] This invention provides a parallel redundant potting type high heat dissipation lithium-ion battery charger, which has the following beneficial effects:

[0026] In this invention, the transmission component drives the movement of valve channel one and valve channel two, thereby closing or reducing the opening of valve channel one, and gradually increasing the opening of valve channel two from the closed state. This switches the gas flow state in the heat pipe from a direct connection between the intake and exhaust ends to a state where valve channel one is closed and valve channel two connects the inner cavity of the casing to the heat pipe, or valve channel one and valve channel two are partially open, so that gas flows in both the intake end and the casing. This prevents the high temperature generated by the motherboard from not circulating within the casing, which could cause the casing to overheat and lead to poor motherboard performance and inability to operate at high power when the motherboard is in high-power mode. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a parallel redundant potting type high heat dissipation lithium-ion battery charger proposed in this invention;

[0028] Figure 2 This is a schematic diagram of the motherboard structure in this invention;

[0029] Figure 3 This is a schematic diagram of the heat dissipation pipe structure in this invention;

[0030] Figure 4 In this invention Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 In this invention Figure 3 Enlarged view of point B in the middle;

[0032] Figure 6 This is a schematic diagram of the knob structure in this invention;

[0033] Figure 7 In this invention Figure 6 Enlarged view of point C in the middle;

[0034] Figure 8 This is a schematic diagram of the connecting rod in this invention;

[0035] Figure 9 This is a schematic diagram of the partition structure in this invention;

[0036] Figure 10 This is a schematic diagram of the rectangular strip structure in this invention.

[0037] Legend: 1. Housing; 11. Inlet; 12. Exhaust; 2. Mainboard; 3. Heat dissipation channel; 31. Heat pipe; 32. Heat sink; 33. Fan; 34. Reversing chamber; 35. Valve channel one; 351. Rectangular frame; 352. Partition plate; 353. Rotating shaft; 354. Connecting bar; 355. Rack; 356. Connecting arm; 36. Valve channel two; 361. Rectangular bar; 362. Support bar; 363. Support plate; 364. Limiting frame; 365. Connecting shaft; 366. Sealing plate; 4. 41. Control components; 42. Knob; 43. Rheostat; 44. Rotating shaft; 45. Swing arm; 46. Wheel; 47. Axle rod; 58. Transmission assembly; 59. Fixing block; 50. Fixing lug; 51. Slide rod; 52. Sliding bar; 53. Sliding strip; 54. Limiting strip; 55. Sliding block; 56. Connecting rod; 57. Connecting block; 58. Fastening block; 6. Connecting component; 61. Guide frame one; 62. Pull rope; 63. Guide frame two; 64. Guide frame three; 65. Crossbar; 66. Baffle; 7. Ventilation slot; 71. Filter screen. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] Reference Figure 1-10 A parallel redundant potting type high heat dissipation lithium-ion battery charger includes a housing 1 and a main board 2 inside the housing 1. A heat dissipation channel 3 is fixedly connected to the top of the main board 2. The heat dissipation channel 3 includes a heat dissipation pipe 31, which is fixedly connected to an air inlet 11 and an exhaust 12 opened in the housing 1. A reversing cavity 34 is opened near the air inlet 11 at the heat dissipation end. The reversing cavity 34 is provided with a valve channel 35 and a valve channel 36 for changing the gas flow of the heat dissipation pipe 31. The charger also includes a control component 4, which is driven by a transmission component 5. The transmission component 4 drives the opening and closing of the valve channel 35 and the valve channel 36 through the transmission component 5 to switch the opening and closing states of the valve channel 35 and the valve channel 36. When the control component 4 is at maximum power, it drives the valve channel 35 and the valve channel 36 to switch through the transmission component 5. By reducing the opening of the air inlet 11 of the valve channel 35 and increasing the valve channel 36 that connects to the inner cavity of the housing 1, the heat dissipation pipe 31 dissipates heat to the main board 2 while the gas flows in the inner cavity of the housing 1.

[0040] Specifically, the casing 1 has a rectangular frame structure. Inside the casing 1, the motherboard 2 is fixed with bolts. A heat dissipation channel 3 is fixed to the top of the motherboard 2 via a heat-conducting plate. Heat sinks 32 fixed within the heat dissipation channel 3 are used to dissipate high temperatures from the electrical components of the motherboard 2. A heat pipe 31 in the heat dissipation channel 3 connects the air intake end 11 and the exhaust end 12 of the casing 1. A fan 33 dissipates the high temperature generated by the motherboard 2 through the heat sink 32 in the heat pipe 31 from the exhaust end 12, and exchanges heat with the heat sink 32 through the air intake end 11, thereby reducing the high temperature generated by the motherboard 2 during operation and improving its performance. When the control unit 4 adjusts the operating power of the motherboard 2 from low to high, the control unit... 4. The transmission component 5 drives the movement of valve channel 1 35 and valve channel 2 36, thereby closing or reducing the opening of valve channel 1 35 and gradually increasing the opening of valve channel 2 36 from the closed state. This causes the gas flow state in the heat pipe 31 to switch from a direct connection between the intake end 11 and the exhaust end 12 to a state where valve channel 1 35 is closed and valve channel 2 36 connects the inner cavity of the casing 1 to the heat pipe 31, or to a state where valve channel 1 35 and valve channel 2 36 are half open. This ensures that there is gas flow in both the intake end 11 and the casing 1, preventing the high temperature generated by the motherboard 2 from not circulating within the casing 1 when it is used at high power. This would prevent the casing 1 from overheating and causing the motherboard 2 to malfunction and be unable to operate at high power.

[0041] A heat sink 32 is fixedly connected inside the heat pipe 31, and the heat sink 32 is arrayed inside the heat pipe 31. A fan 33 is provided inside the heat pipe 31, and the fan 33 is located near the exhaust end 12. The valve passage 36 includes a rectangular bar 361, with a support bar 362 symmetrically fixed to one end of the rectangular bar 361. A support plate 363 is fixedly connected to one end of the support bar 362. A limit frame 364 is fixedly connected to one end of the support plate 363. A connecting shaft 365 is provided inside the two limit frames 364. One end of the connecting shaft 365 The device is equipped with a sealing plate 366, which is rotatably positioned in the slot of the heat dissipation pipe 31; the valve channel 35 includes a rectangular frame 351, and multiple partitions 352 are provided inside the rectangular frame 351. One end of the partition 352 is rotatably connected to a rotating shaft 353. A gear at the top of the rotating shaft 353 meshes with a rack 355. One end of the rack 355 is fixedly connected to a connecting bar 354, and one end of the connecting bar 354 is fixedly connected to a connecting arm 356, which is fixedly connected to the support bar 362.

[0042] Specifically, the fan 33 near the exhaust end 12 is used to draw gas from the heat pipe 31 to the exhaust end 12. The reversing chamber 34 at the end of the heat pipe 31 near the intake end 11 is used to install valve channel 1 35 and valve channel 2 36. The support bar 362, which is fixed to the rectangular bar 361 in the valve channel 2 36, abuts against the outside of the heat pipe 31. The support bar 362 limits the connecting shaft 365 through the limiting frame 364 fixed to the support plate 363. When the rectangular bar 361 moves laterally, it drives the connecting shaft 365 in the limiting frame 364 to move. The sealing plate 366, which is rotatably connected to the connecting shaft 365, rotates along the connection of the heat pipe 31, so that the sealing plate 366 switches the groove of the housing 1 and the heat pipe 31 from a closed state to an open state. The rectangular frame 351 in the valve channel 1 35 is rotatably connected to the partition 352. Multiple partitions 352 rotate to form an open or closed state. Driven by the lateral movement of the rectangular bar 361, the connecting arm 356 drives the rack 355 fixed to the connecting bar 354 to move laterally. The rotating shaft 353 engaged by the rack 355 rotates and drives the partition 352 located in the rectangular frame 351 to rotate, realizing the rotation and closing of the partition 352 from the open state. When the rectangular bar 361 moves laterally by the drive of the transmission component 5, the first valve channel 35 switches from the open state to the closed state, and the second valve channel 36 switches from the closed state to the open state. This realizes that the air inlet 11 connected to the heat dissipation pipe 31 and the inner cavity of the casing 1 are changed by the switching of the first valve channel 35 and the second valve channel 36, thereby improving the gas flow state in the casing 1 and improving the heat dissipation effect of the casing 1. When the motherboard 2 switches from low power to high power, the heat dissipation effect of the casing 1 is improved by changing the gas flow, thus avoiding the performance of the motherboard 2 under high power due to overheating in the casing 1.

[0043] The control component 4 includes a knob 41 rotatably mounted outside the housing 1. A rotating shaft 43 is fixedly connected to the knob 41 through the housing 1. A rheostat 42 is fitted over the rotating shaft 43. A swing arm 44 is fixedly connected to one end of the rotating shaft 43 near the rheostat 42. A wheel 45 is rotatably connected to one end of the swing arm 44. A shaft rod 451 is provided at one end of the wheel 45 through the end of the swing arm 44. A limiting strip 54 is fitted to the end of the shaft rod 451 away from the swing arm 44. A sliding strip 53 is fixedly connected to the top of the limiting strip 54. A sliding rod 52 is slidably connected to one end of the sliding strip 53. Fixed blocks 51 are symmetrically fixed to both ends of the sliding rod 52 and are fixed to the housing 1. A fixing lug 511 is fixedly connected to one end of each fixing block 51. A connecting rod 56 is movably connected between the two fixing lugs 511. A sliding block 55 is fixedly connected to one end of the connecting rod 56. The end of the sliding block 55 away from the connecting rod 56 is slidably connected to the sliding rod 52; one end of the connecting rod 56 is fixedly connected to the connecting block 57, and the connecting block 57 is fixedly connected to the rectangular strip 361; the other end of the connecting rod 56 is fixedly connected to the fastening block 58; the end of the fastening block 58 away from the connecting rod 56 is fixedly connected to the connecting member 6; the connecting member 6 includes a pull rope 62, one side of which is wound with a guide frame 1 61, a guide frame 2 63 and a guide frame 3 64, and the guide frame 1 61, the guide frame 2 63 and the guide frame 3 64 are all fixedly connected to the housing 1; the end of the pull rope 62 away from the fastening block 58 is fixedly connected to the horizontal strip 65, one end of the horizontal strip 65 is fixedly connected to the baffle 66, and the baffle 66 is slidably disposed in the ventilation slot 7 opened in the housing 1; the ventilation slot 7 is provided with a filter screen 71, and the filter screen 71 is in contact with the cleaning strip fixedly connected to the bottom end of the baffle 66.

[0044] Specifically, the knob 41 located outside the housing 1 in the control component 4 adjusts the power of the equipment function by manual rotation. When the knob 41 drives the swing arm 44 to rotate via the rotating shaft 43, the rheostat 42 sleeved on the rotating shaft 43 can switch the power of the main board 2 from low to high power through the rotation of the shaft (the prior art is not described in detail). When the rotating wheel 45 connected to the end of the swing arm 44 moves along the outer wall of the rheostat 42, the shaft rod 451 connected to it moves the limiting strip 54, causing the fixed sliding strip 53 to move directionally along the slide rod 52. The sliding block 55 slidably connected in the slide rod 52 causes the connecting rod 56 fixed to it to move laterally, so that the connecting block 57 fixed to one end of the connecting rod 56 drives the rectangular strip 361 fixed to it to move, which facilitates the switching chamber to connect the air inlet 11 with the... When switching the inner cavity of the housing 1, the fastening block 58 fixed to the other end of the connecting rod 56 drives the pull rope 62 to move during the movement. The position of the pull rope 62 is limited by the guide frame 61, guide frame 63 and guide frame 64 which are wound around and fixed on the housing 1. This causes the pull rope 62 to drive the baffle 66 fixed to the crossbar 65 to move in a directional direction along the ventilation groove 7, so that the ventilation groove 7 opens from the closed state. When the baffle 66 moves, it squeezes the spring located in the housing 1, which makes it easy for the baffle 66 to reset under the action of the spring when switching to the low power state, so as to close the ventilation groove 7. The cleaning strip fixed in the baffle 66 cleans the filter screen 71 in the ventilation groove 7 during the movement, so as to prevent the dust adsorbed by the filter screen 71 from clogging and affecting the flow of gas in the inner cavity of the housing 1.

[0045] Working principle: The power of the main board 2 is adjusted by the control component 4. The control component 4 drives the movement of valve channel 35 and valve channel 36 through the transmission component 5. The knob 41 drives the swing arm 44 to rotate through the rotating shaft 43. The rheostat 42 sleeved on the rotating shaft 43 can switch the power of the main board 2 from low to high power through the rotation of the shaft. The rotating wheel 45 connected to the end of the swing arm 44 moves along the outer wall of the rheostat 42. The shaft rod 451 connected to it moves the limit bar 54, which drives the fixed sliding bar 53 to move in a direction along the slide rod 52. The sliding block 55, which is slidably connected in the slide rod 52, drives the connecting rod 56 fixed to it to move laterally, so that the connecting block 57 fixed to one end of the connecting rod 56 drives the rectangular bar 36 fixed to it. 1. Movement facilitates the switching of the intake end 11 and the inner cavity of the housing 1. The fastening block 58 fixed to the other end of the connecting rod 56 drives the pull rope 62 to move during the movement. The position of the pull rope 62 is limited by the guide frame 1 61, guide frame 2 63 and guide frame 3 64 fixed to the housing 1, so that the pull rope 62 drives the baffle 66 fixed to the crossbar 65 to move in a directional direction along the ventilation groove 7, so that the ventilation groove 7 opens from the closed state, realizing the closure or reduction of the opening of valve channel 1 35, and the gradual increase of the opening of valve channel 2 36 from the closed state, so that the gas flow state in the heat dissipation pipe 31 switches from the direct flow state between the intake end 11 and the exhaust end 12 to the state where valve channel 1 35 is closed and valve channel 2 36 controls the inner cavity of the housing 1. The air intake 11 is connected to the heat dissipation pipe 31, or the valve passage 1 35 and the valve passage 2 36 are in a half-open state, so that there is gas flow in both the air intake end 11 and the housing 1. Among them, the connecting arm 356 fixed on the support bar 362 is driven by the lateral movement of the rectangular bar 361. The connecting arm 356 drives the rack 355 fixed to the linkage bar 354 to move laterally. The rotating shaft 353 engaged by the rack 355 rotates and drives the partition 352 located in the rectangular frame 351 to rotate, so that the partition 352 rotates from the open state to the closed state. When the rectangular bar 361 moves laterally driven by the transmission component 5, the valve passage 1 35 switches from the open state to the closed state, and the valve passage 2 36 switches from the closed state to the open state, so that the air intake end 11 connected to the heat dissipation pipe 31 and the housing 1 have gas flow. The internal cavity of the housing 1 changes the flow direction of gas within the housing 1 by switching between valve channel 1 35 and valve channel 2 36, thereby improving the heat dissipation effect of the housing 1 by increasing the gas flow state within the housing 1. This allows the motherboard 2 to switch from low power to high power operation, and by changing the gas flow method, the heat dissipation effect of the housing 1 is improved. This prevents the high temperature generated by the motherboard 2 from not circulating within the housing 1, which could cause the housing 1 to overheat and result in the motherboard 2's performance being reduced and unable to operate at high power. When adjusting to low power, the baffle 66 located in the ventilation slot 7 moves and presses the spring located in the housing 1 to reset, facilitating the reset of the baffle 66 under the action of the spring when switching to low power, thus closing the ventilation slot 7.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A parallel redundant potting type high heat dissipation lithium-ion battery charger, characterized in that, Includes a casing (1) and a motherboard (2) inside the casing (1); The motherboard (2) is fixedly connected to a heat dissipation channel (3) at its top. The heat dissipation channel (3) includes a heat dissipation pipe (31). The heat dissipation pipe (31) is fixedly connected to the air inlet (11) and the exhaust (12) of the casing (1). A reversing cavity (34) is provided near the air inlet (11) of the heat dissipation end. The reversing cavity (34) is provided with a valve channel one (35) and a valve channel two (36) for changing the gas direction of the heat dissipation pipe (31). It also includes a control component (4), which is connected to a transmission assembly (5). The transmission assembly (5) drives the valve channel one (35) and the valve channel two (36) to open and close, and is used to switch the opening and closing states of the valve channel one (35) and the valve channel two (36). When the control unit (4) is at its maximum power, it drives the valve channel one (35) and valve channel two (36) to switch through the transmission component (5). By reducing the opening of the air inlet end (11) of valve channel one (35) and increasing the valve channel two (36) that connects to the inner cavity of the housing (1), the heat pipe (31) dissipates heat to the motherboard (2) while the gas flows in the inner cavity of the housing (1).

2. The parallel redundant potting type high heat dissipation lithium-ion battery charger according to claim 1, characterized in that, The heat sink (32) is fixedly connected inside the heat sink (31), and the heat sink (32) array is distributed inside the heat sink (31). The heat sink (31) is equipped with a fan (33), and the fan (33) is located near the exhaust end (12).

3. A parallel redundant potting type high heat dissipation lithium-ion battery charger according to claim 1, characterized in that, The valve passage 2 (36) includes a rectangular strip (361), one end of which is symmetrically fixed with a support strip (362), one end of which is fixed with a support plate (363), one end of which is fixed with a limit frame (364), and two limit frames (364) are provided with a connecting shaft (365). One end of the connecting shaft (365) is movably provided with a sealing plate (366), and the sealing plate (366) is rotatably disposed in the slot opened in the heat dissipation pipe (31).

4. A parallel redundant potting type high heat dissipation lithium-ion battery charger according to claim 1, characterized in that, The valve passage (35) includes a rectangular frame (351), and a plurality of partitions (352) are provided inside the rectangular frame (351). One end of the partition (352) is rotatably connected to a rotating shaft (353). A gear at the top of the rotating shaft (353) meshes with a rack (355). One end of the rack (355) is fixedly connected to a connecting bar (354), and one end of the connecting bar (354) is fixedly connected to a connecting arm (356). The connecting arm (356) is fixedly connected to a support bar (362).

5. A parallel redundant potting type high heat dissipation lithium-ion battery charger according to claim 1, characterized in that, The control component (4) includes a knob (41) that is rotatably located outside the housing (1). The knob (41) is fixed to a rotating shaft (43) through the housing (1). A rheostat (42) is fitted over the rotating shaft (43). A swing arm (44) is fixed to one end of the rotating shaft (43) near the rheostat (42). A wheel (45) is rotatably connected to one end of the swing arm (44). A shaft rod (451) is provided at one end of the wheel (45) through one end of the swing arm (44).

6. A parallel redundant potting type high heat dissipation lithium-ion battery charger according to claim 5, characterized in that, A limiting strip (54) is fitted on the end of the shaft rod (451) away from the swing arm (44). A sliding strip (53) is fixedly connected to the top of the limiting strip (54). A sliding rod (52) is slidably connected to one end of the sliding strip (53). Fixed blocks (51) are symmetrically fixed to both ends of the sliding rod (52), and the fixed blocks (51) are fixed to the housing (1).

7. A parallel redundant potting type high heat dissipation lithium-ion battery charger according to claim 6, characterized in that, One end of the fixed block (51) is fixedly connected to a fixed ear (511), and a connecting rod (56) is movably provided between the two fixed ears (511). One end of the connecting rod (56) is fixedly connected to a sliding block (55), and the end of the sliding block (55) away from the connecting rod (56) is slidably connected to the sliding rod (52).

8. A parallel redundant potting type high heat dissipation lithium-ion battery charger according to claim 7, characterized in that, One end of the connecting rod (56) is fixedly connected to a connecting block (57), and the connecting block (57) is fixedly connected to a rectangular strip (361). The other end of the connecting rod (56) is fixedly connected to a fastening block (58), and the end of the fastening block (58) away from the connecting rod (56) is fixedly connected to a connector (6).

9. A parallel redundant potting type high heat dissipation lithium-ion battery charger according to claim 8, characterized in that, The connector (6) includes a pull rope (62), on one side of which are a guide frame one (61), a guide frame two (63) and a guide frame three (64), and the guide frame one (61), the guide frame two (63) and the guide frame three (64) are all fixed to the housing (1).

10. A parallel redundant potting type high heat dissipation lithium-ion battery charger according to claim 9, characterized in that, The pull rope (62) is fixed to a horizontal bar (65) at one end away from the fastening block (58). A baffle (66) is fixed to one end of the horizontal bar (65). The baffle (66) is slidably disposed in the ventilation slot (7) opened in the housing (1). A filter screen (71) is provided in the ventilation slot (7). The filter screen (71) is in contact with the cleaning strip fixed to the bottom end of the baffle (66).

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