High-power lithium battery charger and heat dissipation method thereof

Abstract

The invention relates to the technical field of lithium battery charging, and provides a high-power lithium battery charger and a heat dissipation method thereof.The high-power lithium battery charger comprises a charger body, and a multi-heat-pipe redundant heat dissipation module is arranged in the charger body; the multi-heat-pipe redundant heat dissipation module comprises a plurality of first heat pipes, a plurality of second heat pipes, a plurality of third heat pipes and a plurality of fourth heat pipes. The plurality of first heat pipes cover a heating area in the charger body in a cross network form, and each cross node between the first heat pipes corresponds to each heating source in the heating area; any heating source in the heating area is also connected with at least one second heat pipe; the plurality of third heat pipes are vertically connected to the plurality of cross nodes in a one-to-one correspondence manner; the plurality of fourth heat pipes and the plurality of third heat pipes are also connected in a cross network form; a redundant heat dissipation layout is formed, the heat dissipation reliability and the heat dissipation efficiency are improved, and therefore the risk of overall heat dissipation failure is effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery charging, and more specifically, to a high-power lithium battery charger and a heat dissipation method thereof. Background Art

[0002] The heat dissipation problem of lithium battery chargers is mainly caused by charger overload or excessive current. When the charger cannot stabilize the voltage or cannot effectively dissipate heat in the later stage of charging, it will cause the battery to overheat, which can easily affect the battery performance. With the continuous expansion of the application field of lithium battery chargers, the application of high-power lithium battery chargers is becoming more and more common. However, the heat dissipation method used for high-power lithium battery chargers in the prior art is mostly achieved through built-in cooling fans. Although built-in cooling fans can accelerate heat dissipation and improve charging efficiency, their heat dissipation effect may not be as expected in extremely high temperature environments, and may still cause battery overheating. There is a lack of effective redundant heat dissipation mechanism. Once the cooling fan fails due to a malfunction, the heat dissipation effect will be even more difficult to achieve as expected. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide a high-power lithium battery charger and a heat dissipation method thereof in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this application to solve its technical problem is: On the one hand, the present application provides a high-power lithium battery charger, including a charger body, wherein a multi-heat pipe redundant heat dissipation module is provided in the charger body, and the multi-heat pipe redundant heat dissipation module includes multiple first heat pipes, multiple second heat pipes, multiple third heat pipes and multiple fourth heat pipes; multiple first heat pipes cover the heating area in the charger body in the form of a cross network, and each cross node between the first heat pipes corresponds to each heat source in the heating area respectively; any heat source in the heating area is also connected to at least one second heat pipe; multiple third heat pipes are vertically connected to multiple cross nodes in a one-to-one correspondence, and multiple fourth heat pipes are also connected to multiple third heat pipes in the form of a cross network.

[0005] In some embodiments, the multi-heat pipe redundant heat dissipation module also includes a copper block and a temperature equalizing plate, and the copper block and the temperature equalizing plate are respectively connected to the heat source in the heating area through heat conductive materials; the cross node is connected to the temperature equalizing plate, and the second heat pipe is connected to the copper block.

[0006] In some embodiments, the crossing angle between the two first heat pipes arranged crosswise is 20-90°; the crossing angle between the third heat pipe and the fourth heat pipe arranged crosswise is 90°.

[0007] In some embodiments, the multi-heat pipe redundant heat dissipation module also includes a plurality of first heat dissipation aluminum fins arranged in different orientations, and any of the first heat dissipation aluminum fins is connected to the ends of the plurality of first heat pipes on the corresponding side; a surface of any of the first heat dissipation aluminum fins facing away from the corresponding first heat pipe is provided with a plurality of densely distributed first heat dissipation fins; the intervals between adjacent ends of any two of the first heat pipes on the same side are the same.

[0008] In some embodiments, the multi-heat pipe redundant heat dissipation module also includes a plurality of second heat dissipation aluminum fins arranged in different orientations, and any of the second heat dissipation aluminum fins is connected to the ends of the plurality of second heat pipes on the corresponding side; and a surface of any of the second heat dissipation aluminum fins facing away from the corresponding second heat pipe is provided with a plurality of densely distributed second heat dissipation fins.

[0009] In some embodiments, the multi-heat pipe redundant heat dissipation module also includes a plurality of third heat dissipation aluminum fins and a plurality of fourth heat dissipation aluminum fins arranged in different orientations; any of the third heat dissipation aluminum fins are connected to the ends of the plurality of third heat pipes on the corresponding side, and a surface of any of the third heat dissipation aluminum fins facing away from the corresponding third heat pipes is provided with a plurality of densely distributed third heat dissipation fins; any of the fourth heat dissipation aluminum fins are connected to the ends of the plurality of fourth heat pipes on the corresponding side, and a surface of any of the fourth heat dissipation aluminum fins facing away from the corresponding fourth heat pipes is provided with a plurality of densely distributed fourth heat dissipation fins.

[0010] In some embodiments, a distance between any two adjacent first heat dissipation fins, a distance between any two adjacent second heat dissipation fins, a distance between any three heat dissipation fins, and a distance between any four heat dissipation fins is not less than 6 mm.

[0011] In some embodiments, the charger body is further provided with a plurality of cooling fans arranged in different orientations, and any of the cooling fans corresponds to the first cooling fin, the second cooling fin, the third cooling fin or the fourth cooling fin on the corresponding side; the charger body is provided with a plurality of air inlets and air outlets for the corresponding plurality of cooling fans to enter and exit air.

[0012] On the other hand, the present application also provides a heat dissipation method for a high-power lithium battery charger, which is applied to the high-power lithium battery charger as described in any one of the above items, and the method comprises: Setting a temperature graded control mode, wherein the temperature graded control mode includes a low load mode, a medium load mode and a high load mode; wherein the temperature of the low load mode is less than 60°C, the temperature of the medium load mode is greater than or equal to 60°C and less than 80°C, and the temperature of the high load mode is greater than or equal to 80°C; Real-time detection and acquisition of temperature dynamic change data in the charger body by temperature sensing, and selection of a temperature classification control mode and its corresponding heat dissipation path according to the temperature dynamic change data; The working status of each of the first heat pipes or the second heat pipes is detected in real time to determine whether a working failure occurs. If so, a redundant heat dissipation path is started.

[0013] In some embodiments, the method further comprises: An over-temperature protection mode is set, wherein the temperature threshold of the over-temperature protection mode is 95°C; if the real-time temperature inside the charger body is detected to reach 95°C, the charging power is forcibly reduced or the output is cut off; The failure of the first heat pipe or the second heat pipe is indicated by an audible and visual alarm, and a redundant heat dissipation path is activated.

[0014] The beneficial effects of the present application are as follows: Different from the prior art, the high-power lithium battery charger of the present application is provided with a multi-heat pipe redundant heat dissipation module in the charger body, wherein a plurality of first heat pipes cover the heating area in the charger body in the form of a cross network, having a large heat dissipation area, and each cross node between the first heat pipes respectively corresponds to each heat source in the heating area, and the heat transfer effect is better; any heat source in the heating area is also connected to at least one second heat pipe, and can dissipate heat independently of each first heat pipe; a plurality of third heat pipes are vertically connected to a plurality of cross nodes one by one, and a plurality of fourth heat pipes are also connected to a plurality of third heat pipes in the form of a cross network, which can effectively expand the heat flow path and space; a redundant heat dissipation layout is formed, and if some of the first heat pipes fail, multi-path heat dissipation can be achieved through other normally working first heat pipes in cooperation with the third heat pipes and the fourth heat pipes at their corresponding cross nodes and the second heat pipes, and vice versa, thereby effectively avoiding the risk of overall heat dissipation failure and contributing to the improvement of heat dissipation reliability and heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a multi-heat pipe redundant heat dissipation module in an embodiment of the present application; Figure 2 is an enlarged structural schematic diagram of a part A in an embodiment of the present application; Figure 3 This is a schematic diagram of the structure of the charger body in the embodiment of the present application; Figure 4 This is a flow chart of a heat dissipation method for a high-power lithium battery charger according to an embodiment of the present application; Figure 5 This is another implementation flow chart of the heat dissipation method of the high-power lithium battery charger in the embodiment of the present application. DETAILED DESCRIPTION

[0016] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0017] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0018] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0019] Moreover, the terms "up, down, front, back, left, right, upper end, lower end" etc. indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present application.

[0021] Embodiment 1: The present application embodiment provides a high-power lithium battery charger, such as Figures 1 to 3As shown in the figure, the high-power lithium battery charger includes a charger body 10, in which a multi-heat pipe redundant heat dissipation module is arranged, and the multi-heat pipe redundant heat dissipation module includes multiple first heat pipes 1, multiple second heat pipes 2, multiple third heat pipes 3 and multiple fourth heat pipes 4; multiple first heat pipes 1 cover the heating area in the charger body 10 in the form of a cross network, and each cross node between the first heat pipes 1 corresponds to each heat source in the heating area respectively; any heat source in the heating area is also connected to at least one second heat pipe 2; multiple third heat pipes 3 are vertically connected to multiple cross nodes in a one-to-one correspondence, and multiple fourth heat pipes 4 and multiple third heat pipes 3 are also connected in the form of a cross network.

[0022] The high-power lithium battery charger of the embodiment of the present application makes multiple first heat pipes 1 cross each other in the form of a network covering the heating area, which can effectively expand the heat dissipation area, and make the cross node correspond to the heat source, and the heat source is dissipated in a targeted manner through the cross node, so that the heat transfer effect is better, which helps to improve the heat dissipation efficiency. Moreover, at least one second heat pipe 2 is directly connected to the corresponding heat source, and the heat source can also be effectively dissipated independently. Make multiple third heat pipes 3 vertically connected to multiple cross nodes one by one, and multiple fourth heat pipes 4 and multiple third heat pipes 3 are also connected in the form of a cross network, which can effectively expand the heat flow path and space; constitute a redundant heat dissipation layout, if part of the first heat pipe 1 fails, it can also be achieved through other normally working first heat pipes 1 to cooperate with the third heat pipe 3 and the fourth heat pipe 4 at the corresponding cross node and each second heat pipe 2 to achieve multi-path heat dissipation, and vice versa, to ensure that there is always a normal redundant heat dissipation path to achieve heat dissipation.

[0023] It should be noted that the heating area in this embodiment refers to the circuit board 20 and the area where it is located arranged in the charger body 10, and the heat source is the heating components on the circuit board 20, such as the transformer and IGBT module arranged on the circuit board 20.

[0024] Specifically, in this embodiment, the multi-heat pipe redundant heat dissipation module also includes a copper block 5 and a temperature averaging plate 6, and the copper block 5 and the temperature averaging plate 6 are respectively connected to the heat source in the heating area through heat-conducting materials. The cross node is connected to the temperature averaging plate 6, and the second heat pipe 2 is connected to the copper block 5. Among them, the heat-conducting material is such as thermal conductive glue, and the cross node can be connected to the temperature averaging plate 6 by thermal conductive glue or welding, and the second heat pipe 2 can also be connected to the copper block 5 by thermal conductive glue or welding. The setting of the copper block 5 and the temperature averaging plate 6 helps to conduct the heat generated by the heat source outward step by step.

[0025] Among them, the intersection angle between the two cross-arranged first heat pipes 1 is 20-90°; the intersection angle between the cross-arranged third heat pipe 3 and the fourth heat pipe 4 is 90°, which helps to expand the heat dissipation space. For example, in this embodiment, the intersection angles between the two cross-arranged first heat pipes 1 and between the third heat pipe 3 and the fourth heat pipe 4 are both 90°. It can be understood that, depending on the different positions of the heat-generating components on the circuit board 20, the intersection angle between the two cross-arranged first heat pipes 1 should be based on the ability to make the intersection node correspond to the heat-generating component. The angles set in this embodiment and those shown in the accompanying drawings are only examples.

[0026] Specifically, in this embodiment, the multi-heat pipe redundant heat dissipation module also includes a plurality of first heat dissipation aluminum fins 71 arranged in different orientations, and any first heat dissipation aluminum fin 71 is connected to the ends of the plurality of first heat pipes 1 on the corresponding side, so that the heat on the plurality of first heat pipes 1 can be gathered on the corresponding first heat dissipation aluminum fin 71. A surface of any first heat dissipation aluminum fin 71 facing away from the corresponding first heat pipe 1 is provided with a plurality of densely distributed first heat dissipation fins 711, which are used to promote the heat dissipation of the first heat dissipation aluminum fin 71 and achieve a better heat dissipation effect. The intervals between the adjacent ends of any two first heat pipes 1 on the same side are the same, so that the heat on the first heat pipe 1 can be evenly distributed on the first heat dissipation aluminum fin 71, thereby avoiding local heat accumulation that affects the heat dissipation effect.

[0027] Furthermore, in this embodiment, the multi-heat pipe redundant heat dissipation module also includes a plurality of second heat dissipation aluminum fins 72 arranged in different directions, and any second heat dissipation aluminum fin 72 is connected to the ends of the plurality of second heat pipes 2 on the corresponding side, so that the heat on the plurality of second heat pipes 2 can also be gathered on the corresponding second heat dissipation aluminum fin 72. A surface of any second heat dissipation aluminum fin 72 facing away from the corresponding second heat pipe 2 is provided with a plurality of densely distributed second heat dissipation fins 721, which are used to promote the heat dissipation of the second heat dissipation aluminum fin 72 and also achieve a better heat dissipation effect.

[0028] Further, in this embodiment, the multi-heat pipe redundant heat dissipation module also includes a plurality of third heat dissipation aluminum fins 73 and a plurality of fourth heat dissipation aluminum fins 74 arranged in different directions. Any third heat dissipation aluminum fin 73 is connected to the ends of the plurality of third heat pipes 3 on the corresponding side, so that the heat on the plurality of third heat pipes 3 can also be gathered on the corresponding third heat dissipation aluminum fin 73. A surface of any third heat dissipation aluminum fin 73 facing away from the corresponding third heat pipe 3 is provided with a plurality of densely distributed third heat dissipation fins 731, which are used to promote the heat dissipation of the third heat dissipation aluminum fin 73 and also achieve a better heat dissipation effect. Any fourth heat dissipation aluminum fin 74 is connected to the ends of the plurality of fourth heat pipes 4 on the corresponding side, so that the heat on the plurality of fourth heat pipes 4 can also be gathered on the corresponding fourth heat dissipation aluminum fin 74. A surface of any fourth heat dissipation aluminum fin 74 facing away from the corresponding fourth heat pipe 4 is provided with a plurality of densely distributed fourth heat dissipation fins 741, which are used to promote the heat dissipation of the fourth heat dissipation aluminum fin 74 and also achieve a better heat dissipation effect.

[0029] The distance between any two adjacent first heat dissipation fins 711 , the distance between any two adjacent second heat dissipation fins 721 , the distance between any three heat dissipation fins 731 , and the distance between any four heat dissipation fins 741 is not less than 6 mm, so as to ensure that natural convection can proceed smoothly.

[0030] Specifically, in the present embodiment, a plurality of cooling fans 8 arranged in different orientations are further provided in the charger body 10, and any cooling fan 8 corresponds to the first cooling fin 711, the second cooling fin 721, the third cooling fin 731 or the fourth cooling fin 741 on the corresponding side; the charger body 10 is provided with a plurality of air inlets and air outlets for the corresponding plurality of cooling fans 8 to enter and exit air, and the cooling fan 8 is usually arranged at the air outlet to ensure the circulation, exchange and circulation of internal and external air.

[0031] It can be understood that Figure 1 Only the layout of the first heat dissipation aluminum fin 71, the second heat dissipation aluminum fin 72, the third heat dissipation aluminum fin 73, and the fourth heat dissipation aluminum fin 74 is shown. Figure 3 Only a partial layout of the cooling fan 8 is shown in the figure. When implementing it specifically, it should be based on the actual application, and the drawings do not constitute a specific limitation.

[0032] Embodiment 2: The embodiment of the present application provides a heat dissipation method for a high-power lithium battery charger, which is applied to the high-power lithium battery charger provided in the first embodiment to realize intelligent temperature monitoring and heat dissipation control, and effectively control the realization of the heat dissipation effect, see steps S1-S3, such as Figure 4 As shown in , the method specifically includes: S1: Setting the temperature classification control mode, which includes low load mode, medium load mode and high load mode; wherein the temperature of the low load mode is less than 60°C, the temperature of the medium load mode is greater than or equal to 60°C and less than 80°C, and the temperature of the high load mode is greater than or equal to 80°C; For example, in step S1, in low load mode, heat is mainly dissipated through the first heat pipe 1, the second heat pipe 2 and the corresponding heat dissipation aluminum sheets and heat dissipation fins; in medium load mode, heat is mainly dissipated through the first heat pipe 1, the second heat pipe 2, the third heat pipe 3, the fourth heat pipe 4 and the corresponding heat dissipation aluminum sheets and heat dissipation fins; in high load mode, heat is mainly dissipated through the first heat pipe 1, the second heat pipe 2, the third heat pipe 3, the fourth heat pipe 4, the corresponding heat dissipation aluminum sheets and heat dissipation fins and the corresponding heat dissipation fan 8.

[0033] S2: Detect and obtain the temperature dynamic change data in the charger body 10 in real time through temperature sensing, and select the temperature classification control mode and its corresponding heat dissipation path according to the temperature dynamic change data; The charger body 10 is usually provided with a temperature sensing module for detecting the real-time temperature. The temperature sensing module includes a contact temperature sensor and a non-contact temperature sensor. The contact temperature sensor is for example a thermistor, a thermocouple, etc. The non-contact temperature sensor is for example an infrared thermal sensor, etc.

[0034] In step S2, the real-time temperature dynamic changes are grasped through real-time temperature data, so as to dynamically adjust the corresponding heat dissipation mode, which helps to select different heat dissipation paths. It can not only give full play to the potential of redundant heat dissipation layout, but also meet the needs of efficient, reliable and intelligent heat dissipation.

[0035] S3: Detect the working status of each first heat pipe 1 or second heat pipe 2 in real time and determine whether there is a working failure. If so, start the redundant heat dissipation path.

[0036] In step S3, not only can the normal heat dissipation be ensured by other normal first heat pipes 1 and / or second heat pipes 2 when some of the first heat pipes 1 fail; or when some of the second heat pipes 2 fail, the normal heat dissipation is ensured by other normal second heat pipes 2 and / or first heat pipes 1, but also the normal heat dissipation can be further ensured by the corresponding third heat pipes 3, fourth heat pipes 4, heat dissipation aluminum sheets and heat dissipation fins thereon, and each heat dissipation fan 8, which helps the system to dynamically adjust the heat dissipation path, effectively avoid the risk of overall heat dissipation failure, and is flexible in application.

[0037] Further, in this embodiment, please refer to steps S4 and S5. Figure 5 As shown in , the method specifically also includes: S4: setting an over-temperature protection mode, the temperature threshold of which is 95°C; if it is detected that the real-time temperature inside the charger body 10 reaches 95°C, the charging power is forcibly reduced or the output is cut off; S5: The failure of the first heat pipe 1 or the second heat pipe 2 is indicated by an audible and visual alarm, and a redundant heat dissipation path is started.

[0038] By setting an audible and visual alarm module on the charger body 10, the heat dissipation situation can be grasped in time, so as to implement safety protection measures to ensure charging safety.

[0039] It should be understood that ordinary technical workers in the field can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A high-power lithium battery charger, comprising a charger body, characterized in that: A multi-heat pipe redundant heat dissipation module is provided in the charger body, and the multi-heat pipe redundant heat dissipation module includes multiple first heat pipes, multiple second heat pipes, multiple third heat pipes and multiple fourth heat pipes; multiple first heat pipes cover the heating area in the charger body in the form of a cross network, and each cross node between the first heat pipes corresponds to each heat source in the heating area respectively; any heat source in the heating area is also connected to at least one second heat pipe; multiple third heat pipes are vertically connected to multiple cross nodes in a one-to-one correspondence, and multiple fourth heat pipes are also connected to multiple third heat pipes in the form of a cross network.

2. The high-power lithium battery charger according to claim 1, characterized in that: The multi-heat pipe redundant heat dissipation module also includes a copper block and a temperature averaging plate, and the copper block and the temperature averaging plate are respectively connected to the heat source in the heating area through heat conductive materials; the cross node is connected to the temperature averaging plate, and the second heat pipe is connected to the copper block.

3. The high-power lithium battery charger according to claim 1 or 2, characterized in that: The crossing angle between the two first heat pipes arranged crosswise is 20-90°; the crossing angle between the third heat pipe and the fourth heat pipe arranged crosswise is 90°.

4. The high-power lithium battery charger according to claim 1, characterized in that: The multi-heat pipe redundant heat dissipation module also includes a plurality of first heat dissipation aluminum fins arranged in different orientations, and any of the first heat dissipation aluminum fins is connected to the ends of the plurality of first heat pipes on the corresponding side; a surface of any of the first heat dissipation aluminum fins facing away from the corresponding first heat pipe is provided with a plurality of densely distributed first heat dissipation fins; the intervals between adjacent ends of any two of the first heat pipes on the same side are the same.

5. The high-power lithium battery charger according to claim 4, characterized in that: The multi-heat pipe redundant heat dissipation module also includes a plurality of second heat dissipation aluminum fins arranged in different orientations, and any of the second heat dissipation aluminum fins is connected to the ends of the plurality of second heat pipes on the corresponding side; and a surface of any of the second heat dissipation aluminum fins facing away from the corresponding second heat pipe is provided with a plurality of densely distributed second heat dissipation fins.

6. The high-power lithium battery charger according to claim 5, characterized in that: The multi-heat pipe redundant heat dissipation module also includes multiple third heat dissipation aluminum fins and multiple fourth heat dissipation aluminum fins arranged in different orientations; any of the third heat dissipation aluminum fins are connected to the ends of multiple third heat pipes on the corresponding side, and a surface of any of the third heat dissipation aluminum fins facing away from the corresponding third heat pipes is provided with multiple densely distributed third heat dissipation fins; any of the fourth heat dissipation aluminum fins are connected to the ends of multiple fourth heat pipes on the corresponding side, and a surface of any of the fourth heat dissipation aluminum fins facing away from the corresponding fourth heat pipes is provided with multiple densely distributed fourth heat dissipation fins.

7. The high-power lithium battery charger according to claim 6, characterized in that: The distance between any two adjacent first heat dissipation fins, the distance between any two adjacent second heat dissipation fins, the distance between any three heat dissipation fins, and the distance between any four heat dissipation fins is not less than 6 mm.

8. The high-power lithium battery charger according to claim 6 or 7, characterized in that: The charger body is also provided with a plurality of cooling fans arranged in different orientations, and any of the cooling fans corresponds to the first cooling fin, the second cooling fin, the third cooling fin or the fourth cooling fin on the corresponding side; the charger body is provided with a plurality of air inlets and air outlets for the corresponding plurality of cooling fans to enter and exit air.

9. A heat dissipation method for a high-power lithium battery charger, applied to the high-power lithium battery charger according to any one of claims 1 to 8, characterized in that: The method comprises: Setting a temperature graded control mode, wherein the temperature graded control mode includes a low load mode, a medium load mode and a high load mode; wherein the temperature of the low load mode is less than 60°C, the temperature of the medium load mode is greater than or equal to 60°C and less than 80°C, and the temperature of the high load mode is greater than or equal to 80°C; Real-time detection and acquisition of temperature dynamic change data in the charger body by temperature sensing, and selection of a temperature classification control mode and its corresponding heat dissipation path according to the temperature dynamic change data; The working status of each of the first heat pipes or the second heat pipes is detected in real time to determine whether a working failure occurs. If so, a redundant heat dissipation path is started.

10. The heat dissipation method of a high-power lithium battery charger according to claim 9, characterized in that: The method further comprises: An over-temperature protection mode is set, wherein the temperature threshold of the over-temperature protection mode is 95°C; if the real-time temperature inside the charger body is detected to reach 95°C, the charging power is forcibly reduced or the output is cut off; The failure of the first heat pipe or the second heat pipe is indicated by an audible and visual alarm, and a redundant heat dissipation path is activated.

Images