Battery temperature control device and battery temperature control method

Abstract

The embodiment of the invention provides a battery temperature control device and a battery temperature control method, and relates to the technical field of battery temperature control, the battery temperature control device comprises at least two oppositely-arranged semiconductor chilling plates, a battery containing cavity is formed between the oppositely-arranged semiconductor chilling plates, a battery is located in the battery containing cavity, and the battery is located in the battery containing cavity; the semiconductor chilling plate is used for supplying cold or heat to the battery accommodating cavity; the at least two first heat conduction pieces are in contact with one end of the semiconductor chilling plate; the second heat conduction pieces are in contact with the other ends of the semiconductor chilling plates; at least two first fans; the control module is electrically connected with the semiconductor chilling plate, and the control module is used for detecting the temperature of the battery and controlling the semiconductor chilling plate and the first fan to work according to the detected temperature so as to control the temperature of the battery; according to the invention, battery temperature control can be carried out intelligently, so that the battery temperature is constant in a certain range.

Description

Technical Field

[0001] The present invention relates to the technical field of battery temperature control, and in particular to a battery temperature control device and a battery temperature control method. Background Art

[0002] Battery temperature control is a technology that monitors and controls the temperature of the battery in real time. It can effectively reduce the aging rate and damage risk of the battery and improve the service life and safety of the battery. Specifically, battery temperature control can dynamically adjust the battery temperature (such as: heating or cooling, etc.).

[0003] Therefore, how to intelligently control the battery temperature so that the battery temperature remains constant within a certain range is an urgent problem to be solved. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a battery temperature control device and a battery temperature control method, so as to intelligently control the battery temperature so that the battery temperature is constant within a certain range. The specific technical solution is as follows:

[0005] In a first aspect, an embodiment of the present invention provides a battery temperature control device, comprising:

[0006] At least two semiconductor refrigeration sheets arranged opposite to each other, a battery receiving cavity is formed between the semiconductor refrigeration sheets arranged opposite to each other, a battery is located in the battery receiving cavity, and the semiconductor refrigeration sheets are used to supply cold or heat to the battery receiving cavity;

[0007] At least two first heat-conducting members, wherein the first heat-conducting members are in contact with one end of the semiconductor cooling sheet, and the first heat-conducting members are used to conduct the cold or heat generated by a side of the semiconductor cooling sheet close to the battery receiving cavity;

[0008] At least two second heat-conducting members, the second heat-conducting members are in contact with the other end of the semiconductor cooling sheet, and the second heat-conducting members are used to conduct heat or cold generated by a side of the semiconductor cooling sheet away from the battery receiving cavity;

[0009] At least two first fans, one of the at least two first fans and its corresponding first heat-conducting member, and another of the at least two first fans and its corresponding first heat-conducting member are sequentially arranged in the battery receiving cavity in a clockwise direction, and when the at least two first fans jointly provide wind power, an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity;

[0010] A control module is electrically connected to the semiconductor refrigeration sheet, and is used to detect the temperature of the battery, and control the operation of the semiconductor refrigeration sheet and the first fan according to the detected temperature to control the temperature of the battery.

[0011] Optionally, the battery temperature control device has a shell and a top cover, the top cover is detachably connected to the shell, the battery is detachably connected to the top cover, and when the top cover is connected to the shell, the battery is located in the battery accommodating cavity;

[0012] The inner wall of the shell is fixedly connected to the first heat-conducting member, and the outer wall of the shell is in contact with one end of the semiconductor refrigeration plate.

[0013] Optionally, the first heat-conducting member has a plurality of first fins arranged in parallel, and the first fins are used to conduct the cold or heat generated by a side of the semiconductor refrigeration plate close to the battery accommodating cavity.

[0014] Optionally, the second heat-conducting member includes a heat sink or a plurality of second fins arranged in parallel, and the second fins or the heat sink are used to conduct heat or cold generated by a side of the semiconductor refrigeration plate away from the battery receiving cavity.

[0015] Optionally, the battery temperature control device further includes:

[0016] At least two second fans are fixedly connected to corresponding second heat-conducting members, and the second fans are used to provide wind force to the second heat-conducting members so as to form an external cooling air path or an external heating air path outside the battery accommodating cavity.

[0017] In a second aspect, an embodiment of the present invention provides a battery temperature control method, which is applied to a control module of the battery temperature control device, and the method includes:

[0018] detecting a temperature of the battery in the battery receiving cavity;

[0019] The battery is temperature controlled according to the detected temperature; wherein, the battery temperature control according to the detected temperature includes the following steps: if the detected temperature is higher than a safe temperature range, the battery is temperature-controlled; if the detected temperature is within the safe temperature range, the battery is temperature-controlled; if the detected temperature is lower than the safe temperature range, the battery is temperature-controlled.

[0020] Optionally, controlling the temperature of the battery according to the detected temperature includes:

[0021] Determining the operating status of the battery located in the battery receiving cavity;

[0022] The battery is temperature controlled according to the detected temperature and the working state of the battery.

[0023] Optionally, controlling the temperature of the battery according to the detected temperature and the working state of the battery includes:

[0024] If the detected temperature is within a safe temperature range and the working state is a charging state, obtaining a first cooling strategy, and performing cooling control on the battery based on the first cooling strategy;

[0025] Among them, the first cooling strategy is to control the semiconductor refrigeration plate to operate according to a first power supply current value, control the first fan to operate according to a first power, and control the second fan to operate according to a second power.

[0026] Optionally, it also includes:

[0027] If the detected temperature is higher than the safe temperature range and the working state is a working state other than the charging state, a second cooling strategy is acquired, and the battery is cooled based on the second cooling strategy;

[0028] Among them, the second cooling strategy is to control the semiconductor refrigeration plate to operate according to the second power supply current value, control the first fan to operate according to the third power, and control the second fan to operate according to the fourth power; the first power supply current value is less than the second power supply current value, the first power is less than the third power, and the second power is less than the fourth power.

[0029] Optionally, it also includes:

[0030] If the detected temperature is lower than or in a safe temperature range, and the working state is a working state other than the charging state, obtaining a temperature rise control strategy, and performing temperature rise control on the battery based on the temperature rise control strategy;

[0031] Among them, the temperature rise control strategy is to control the semiconductor refrigeration plate to operate according to the third power supply current value, control the first fan to operate according to the fifth power, and control the second fan to operate according to the sixth power; the temperature rise control of the battery based on the temperature rise control strategy includes: controlling the current direction switching circuit to send a switching signal so that the current direction switching circuit provides the semiconductor refrigeration plate with a power supply current in the opposite direction; based on the temperature rise control strategy, the battery is temperature-controlled; wherein, the power supply current direction of the semiconductor refrigeration plate in the first cooling strategy is opposite to the power supply current direction of the semiconductor refrigeration plate in the temperature rise control strategy.

[0032] Beneficial effects of the embodiments of the present invention:

[0033] A battery temperature control device provided by an embodiment of the present invention comprises: at least two semiconductor refrigeration sheets arranged opposite to each other, a battery receiving cavity is formed between the semiconductor refrigeration sheets arranged opposite to each other, a battery is located in the battery receiving cavity, and the semiconductor refrigeration sheet is used to supply cold or heat toward the battery receiving cavity, thereby realizing temperature control of the battery, so that the temperature of the battery is constant within a certain range; specifically, the battery temperature control device also comprises at least two first heat conducting members, the first heat conducting member is in contact with a section of the semiconductor refrigeration sheet, and is used to conduct the cold or heat generated by the side of the semiconductor refrigeration sheet close to the battery receiving cavity; at least two second heat conducting members, the second heat conducting members are in contact with the other end of the semiconductor refrigeration sheet, and are used to conduct the heat or cold generated by the side of the semiconductor refrigeration sheet away from the battery receiving cavity; one first fan of at least two first fans, the first heat conducting member corresponding thereto, another first fan of at least two first fans, and the first heat conducting member corresponding thereto are sequentially arranged in a clockwise direction in the battery receiving cavity, and when the at least two first fans jointly provide wind power, an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity. The control module of the present invention is electrically connected to the semiconductor refrigeration chip, and is used to detect the temperature of the battery, and control the operation of the semiconductor refrigeration chip and the first fan according to the detected temperature to generate an internal cold circulation air path or an internal heat circulation air path, thereby performing intelligent temperature control for the battery in the battery container, so that the battery is kept constant within a certain temperature range.

[0034] Of course, it is not necessary to achieve all of the advantages described above at the same time to implement any product or method of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0036] Figure 1 A schematic diagram of a partial structure of a battery temperature control device provided by an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of the structure of a battery temperature control device provided by an embodiment of the present invention;

[0038] Figure 3 A schematic diagram of the structure of a battery temperature control device provided by an embodiment of the present invention after a battery is placed therein;

[0039] Figure 4 A schematic diagram of the structure of a battery temperature control device from a top view provided by an embodiment of the present invention;

[0040] Figure 5 A schematic structural diagram of a battery temperature control device including a top cover provided in an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of a flow chart of a battery temperature control method provided by an embodiment of the present invention;

[0042] Figure 7 Another schematic diagram of a flow chart of a battery temperature control method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field based on the present invention belong to the scope of protection of the present invention.

[0044] There are two ways to cool down the battery in current battery temperature control: one is to place the battery in a low-temperature space with an air conditioning system for cooling; however, this method does not provide enough cooling for the battery because the wind speed passing over the battery surface is not high enough. The second method is to cool the battery by blowing air through a fan, but this method still does not provide enough cooling for the battery because the wind temperature passing over the battery surface is not low enough.

[0045] The method of heating the battery includes: wrapping a resistive heating film outside the battery, and heating the resistance wire in the heating film through the battery's own discharge, thereby heating the battery. This method requires the battery to discharge itself when heating the battery, which will reduce the battery's own life and lead to high battery costs.

[0046] Furthermore, the related art usually only cools down or heats up the battery, and cannot ensure that the battery temperature is constant within a certain range.

[0047] Based on this, an embodiment of the present invention provides a battery temperature control device and a battery temperature control method, so as to intelligently control the battery temperature so that the battery temperature is constant within a certain range.

[0048] The following first introduces a battery temperature control device provided by the present invention.

[0049] Among them, a battery temperature control device provided by an embodiment of the present invention can be applied to any scenario with battery temperature control requirements, for example: for drones, after the drone performs a mission, the drone battery is stored; in this scenario, the drone battery can be placed in the battery temperature control device for storage, and the battery temperature control device can control the temperature of the drone battery. In addition, the battery that is temperature controlled in the present invention can be any storage battery that can be accommodated by the battery temperature control device, such as: drone battery, vehicle battery, etc.

[0050] An embodiment of the present invention provides a battery temperature control device, comprising:

[0051] At least two semiconductor refrigeration sheets arranged opposite to each other, a battery receiving cavity is formed between the semiconductor refrigeration sheets arranged opposite to each other, a battery is located in the battery receiving cavity, and the semiconductor refrigeration sheets are used to supply cold or heat to the battery receiving cavity;

[0052] At least two first heat-conducting members, wherein the first heat-conducting members are in contact with one end of the semiconductor cooling sheet, and the first heat-conducting members are used to conduct the cold or heat generated by a side of the semiconductor cooling sheet close to the battery receiving cavity;

[0053] At least two second heat-conducting members, the second heat-conducting members are in contact with the other end of the semiconductor cooling sheet, and the second heat-conducting members are used to conduct heat or cold generated by a side of the semiconductor cooling sheet away from the battery receiving cavity;

[0054] At least two first fans, one of the at least two first fans and its corresponding first heat-conducting member, and another of the at least two first fans and its corresponding first heat-conducting member are sequentially arranged in the battery receiving cavity in a clockwise direction, and when the at least two first fans jointly provide wind power, an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity;

[0055] A control module is electrically connected to the semiconductor refrigeration sheet, and is used to detect the temperature of the battery, and control the operation of the semiconductor refrigeration sheet and the first fan according to the detected temperature to control the temperature of the battery.

[0056] A battery temperature control device provided by an embodiment of the present invention comprises: at least two semiconductor refrigeration sheets arranged opposite to each other, a battery receiving cavity is formed between the semiconductor refrigeration sheets arranged opposite to each other, a battery is located in the battery receiving cavity, and the semiconductor refrigeration sheet is used to supply cold or heat toward the battery receiving cavity, thereby realizing temperature control of the battery, so that the temperature of the battery is constant within a certain range; specifically, the battery temperature control device also comprises at least two first heat conducting members, the first heat conducting member is in contact with a section of the semiconductor refrigeration sheet, and is used to conduct the cold or heat generated by the side of the semiconductor refrigeration sheet close to the battery receiving cavity; at least two second heat conducting members, the second heat conducting members are in contact with the other end of the semiconductor refrigeration sheet, and are used to conduct the heat or cold generated by the side of the semiconductor refrigeration sheet away from the battery receiving cavity; one first fan of at least two first fans, the first heat conducting member corresponding thereto, another first fan of at least two first fans, and the first heat conducting member corresponding thereto are sequentially arranged in a clockwise direction in the battery receiving cavity, and when the at least two first fans jointly provide wind power, an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity. The control module of the present invention is electrically connected to the semiconductor refrigeration chip, and is used to detect the temperature of the battery, and control the operation of the semiconductor refrigeration chip and the first fan according to the detected temperature to generate an internal cold circulation air path or an internal heat circulation air path, thereby performing intelligent temperature control for the battery in the battery container, so that the battery is kept constant within a certain temperature range.

[0057] A battery temperature control device provided by an embodiment of the present invention is introduced below in conjunction with the accompanying drawings.

[0058] like Figure 1-4 As shown, a battery temperature control device provided by an embodiment of the present invention includes:

[0059] At least two semiconductor cooling sheets 110 are arranged opposite to each other, a battery receiving cavity 230 is formed between the semiconductor cooling sheets 110, a battery 220 is located in the battery receiving cavity 230, and the semiconductor cooling sheets 110 are used to supply cold or heat to the battery receiving cavity 230;

[0060] At least two first heat-conducting members 120, wherein the first heat-conducting members 120 are in contact with one end of the semiconductor cooling sheet 110, and the first heat-conducting members 120 are used to conduct the cold or heat generated by a side of the semiconductor cooling sheet 110 close to the battery receiving cavity 230;

[0061] At least two second heat-conducting members 140, the second heat-conducting members 140 are in contact with the other end of the semiconductor cooling sheet 110, and the second heat-conducting members 140 are used to conduct heat or cold generated by a side of the semiconductor cooling sheet 110 away from the battery receiving cavity 230;

[0062] At least two first fans 130, one of the at least two first fans 130 and its corresponding first heat-conducting member 120, and another of the at least two first fans 130 and its corresponding first heat-conducting member 120 are sequentially arranged in the battery receiving cavity 230 in a clockwise direction, and when the at least two first fans 130 jointly provide wind power, an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity 230;

[0063] The control module 150 is electrically connected to the semiconductor refrigeration plate 110 , and is used to detect the temperature of the battery 220 , and control the operation of the semiconductor refrigeration plate 110 and the first fan 130 according to the detected temperature to control the temperature of the battery 220 .

[0064] The semiconductor cooling chip 110 (also called a thermoelectric cooling chip) has a heating function and a cooling function. Specifically, one side of the semiconductor cooling chip 110 (thermoelectric cooling chip) can generate heat, and the other side of the semiconductor cooling chip 110 (thermoelectric cooling chip) can cool down. The two sides of the semiconductor cooling chip 110 (thermoelectric cooling chip) have a constant fixed temperature difference. When the temperature of the hot end side of the semiconductor cooling chip 110 (thermoelectric cooling chip) decreases, the temperature of the cold end side of the semiconductor cooling chip 110 continues to decrease; or, when the temperature of the cold end side of the semiconductor cooling chip 110 (thermoelectric cooling chip) decreases, the temperature of the hot end side of the semiconductor cooling chip 110 (thermoelectric cooling chip) also continues to decrease until the temperature difference between the cold end and the hot end reaches the fixed temperature difference.

[0065] The semiconductor refrigeration chip 110 can be reversely connected. The reverse connection can be achieved by providing the semiconductor refrigeration chip 110 with a power supply current in the opposite direction. In the present invention, the side of the semiconductor refrigeration chip 110 close to the battery receiving cavity is the first end of the semiconductor refrigeration chip 110, and the side of the semiconductor refrigeration chip 110 away from the battery receiving cavity is the second end of the semiconductor refrigeration chip 110; by default, the direction of the power supply current of the semiconductor refrigeration chip 110 is from the first end to the second end; in the case of reverse connection, the direction of the power supply current of the semiconductor refrigeration chip 110 is from the second end to the first end; by default, the first end is the cold end and the second end is the hot end; in the case of reverse connection, the first end is the hot end and the second end is the cold end. In the case of reverse connection of the semiconductor refrigeration chip 110, compared with the default state, the cold end of the semiconductor refrigeration chip 110 becomes the hot end (that is, in the case of reverse connection, the first end of the semiconductor refrigeration chip 110 (the cold end by default) generates heat), and the hot end becomes the cold end (that is, in the case of reverse connection, the second end of the semiconductor refrigeration chip 110 (the hot end by default) generates cold).

[0066] Since there is a certain temperature difference between the two sides of the semiconductor cooling sheet 110 (thermoelectric cooling sheet), the heat generated by the second end (the hot end by default) of the semiconductor cooling sheet (thermoelectric cooling sheet) is dissipated through the second heat-conducting member 140, so that the temperature of the first end of the semiconductor cooling sheet is reduced. That is to say, if the temperature of the second end of the semiconductor cooling sheet 110 (thermoelectric cooling sheet) is reduced, the temperature of the first end of the semiconductor cooling sheet 110 (thermoelectric cooling sheet) is simultaneously reduced, and the degree of reduction is the same.

[0067] Specifically, the first heat conductor 120 can be attached to the first end of the semiconductor refrigeration sheet 110 (or have a certain interval), that is, the first heat conductor 120 is in contact with one end of the semiconductor refrigeration sheet 110, and the second heat conductor 140 can be attached to the second end of the semiconductor refrigeration sheet 110 (or have a certain interval), that is, the second heat conductor 140 is in contact with the other end of the semiconductor refrigeration sheet 110; the second fan 210 provides wind force for the second heat conductor 140, adjusts the heat dissipation or cooling power of the second heat conductor 140, so that the temperature of the second end of the semiconductor refrigeration sheet 110 (thermoelectric refrigeration sheet) is reduced, resulting in the temperature of the first end of the semiconductor refrigeration sheet 110 (thermoelectric refrigeration sheet) being reduced synchronously, and the first fan 130 blows toward the first heat conductor 120 to improve the cooling capacity of the first end of the semiconductor refrigeration sheet 110 (thermoelectric refrigeration sheet) (that is, by default, the first end is the cold end, and the temperature of the first end is reduced to improve the cooling capacity of the first end).

[0068] In the embodiment of the present invention, at least two oppositely arranged semiconductor cooling sheets 110 in the battery temperature control device can simultaneously supply cold or heat to the battery receiving cavity 230, and when at least two first fans 130 jointly provide wind force, the heat or cold generated by the semiconductor cooling sheet 110 on the side close to the battery receiving cavity 230 is conducted to the battery receiving cavity 230 through the first heat conducting member 120, and an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity 230; the control module 150 can detect the temperature of the battery 220, and control the semiconductor cooling sheet according to the detected temperature. 110 and the first fan 130 operate, and conduct the heat or cold generated by the side of the semiconductor refrigeration plate 110 close to the battery accommodating cavity 230 to the battery accommodating cavity 230 through the first heat conductive member 120, thereby generating an internal cold circulation air path or an internal heat circulation air path in the battery accommodating cavity 230, and conduct the cold or heat generated by the side of the semiconductor refrigeration plate 110 away from the battery accommodating cavity 230 through the second heat conductive member 140; the battery 220 is temperature controlled through the internal cold circulation air path or the internal heat circulation air path, so that the temperature of the battery 220 is constant within a certain range.

[0069] Optionally, the first heat-conducting member 120 has a plurality of first fins arranged in parallel, and the first fins are used to conduct the cold or heat generated by a side of the semiconductor cooling plate 110 close to the battery receiving cavity 230 .

[0070] Optionally, the second heat-conducting member 140 includes a heat sink or a plurality of second fins arranged in parallel, and the second fins or the heat sink are used to conduct heat or cold generated by the side of the semiconductor cooling plate 110 away from the battery receiving cavity 230 .

[0071] The first heat-conducting member 120 can conduct the cold or heat generated by the end (the first end of the semiconductor cooling sheet) in contact with the semiconductor cooling sheet 110 to the battery receiving cavity 230. The first heat-conducting member 120 can be arranged inside the shell 300. The first heat-conducting member 120 and the semiconductor cooling sheet 110 are respectively located on both sides of the shell 300 (the first heat-conducting member 120 is located on the inner wall of the shell 300, and the semiconductor cooling sheet 110 is located on the outer wall of the shell 300, and the first end of the semiconductor cooling sheet 110 is in contact with the shell 300. The first heat-conducting member 120 passes through the shell 300. Indirect contact with the semiconductor refrigeration chip 110); the second heat-conducting member 140 can conduct the heat or cold generated by the side of the semiconductor refrigeration chip 110 away from the battery accommodating cavity 230 (the second end of the semiconductor refrigeration chip, that is, the other end in contact with the semiconductor refrigeration chip 110), and the second heat-conducting member 140 can be arranged outside the outer shell 300, and the outer shell 300 and the second heat-conducting member 140 are respectively located on both sides of the semiconductor refrigeration chip 110 (the semiconductor refrigeration chip 110 is located outside the outer shell 300, and the second heat-conducting member 140 is located in contact with the other end of the semiconductor refrigeration chip).

[0072] The first heat conductor 120 and the second heat conductor 140 may be composed of a plurality of fins arranged in parallel, that is, the first heat conductor 120 has a plurality of first fins arranged in parallel, and the second heat conductor 140 includes a plurality of second fins arranged in parallel, the first fins are used to conduct the cold or heat generated by the side of the semiconductor refrigeration sheet 110 close to the battery receiving cavity 230, and the second fins are used to conduct the heat or cold generated by the side of the semiconductor refrigeration sheet 110 away from the battery receiving cavity 230; the first heat conductor 120 or the second heat conductor 140 is composed of parallel and spaced fins connected in series, and the material of each fin may be aluminum alloy. The first heat conductor 120 and the second heat conductor 140 may be composed of a plurality of fins connected in series, and there is a certain interval between each fin, and the intervals between adjacent fins are the same or different; the materials of the first fin and the second fin, and the structure of the fins connected in series may be the same or different, and the present invention does not limit this. In addition, the second heat-conducting member 140 may include a heat sink. By default, the heat sink of the second heat-conducting member 140 is used to conduct the heat generated by the second end of the semiconductor cooling plate 110 to the outside of the battery receiving cavity 230; in the reverse connection case, the heat sink of the second heat-conducting member 140 is used to conduct the cold generated by the second end of the semiconductor cooling plate 110 to the outside of the battery receiving cavity 230.

[0073] In order to make full use of the heat or cold generated by the semiconductor cooling sheet 110, the battery temperature control device of the present invention further includes at least two first heat conducting members 120 and at least two second heat conducting members 140; the first heat conducting member 120 is in contact with one end (first end) of the semiconductor cooling sheet 110, and the second heat conducting member 140 is in contact with the other end (second end) of the semiconductor cooling sheet 110. The first heat conducting member 120 can also have a certain interval with the first end of the semiconductor cooling sheet 110, and the second heat conducting member 140 can also have a certain interval with the second end of the semiconductor cooling sheet 110. The first heat conducting member 120 can absorb and conduct the cold or heat generated by the side (i.e., the first end) of the semiconductor cooling sheet close to the battery receiving cavity 230, and the second heat conducting member 140 can absorb and conduct the heat or cold generated by the side (i.e., the second end) of the semiconductor cooling sheet away from the battery receiving cavity 230.

[0074] By default, the first end is the cold end and the second end is the hot end. The first heat conductor 120 can conduct the cold energy generated by the first end of the semiconductor refrigeration sheet 110 to the inside of the battery accommodating cavity 230, and the second heat conductor 140 can conduct the heat generated by the second end of the semiconductor refrigeration sheet 110 away from the battery accommodating cavity 230 to the outside of the battery accommodating cavity 230; in the reverse connection case, the first end is the hot end and the second end is the cold end. The first heat conductor 120 can conduct the heat generated by the first end of the semiconductor refrigeration sheet 110 to the inside of the battery accommodating cavity 230, and the second heat conductor can conduct the cold energy generated by the second end of the semiconductor refrigeration sheet 110 to the outside of the battery accommodating cavity 230.

[0075] After the semiconductor refrigeration sheet 110 supplies cold or heat, at least two first fans 130 jointly provide wind force, thereby generating an internal cold circulation air path or an internal heat circulation air path in the battery receiving cavity 230; at the same time, the second heat conductor 140 transfers the cold or heat generated by the second end of the semiconductor refrigeration sheet 110 to the outside of the battery receiving cavity 230 to perform battery temperature control on the battery 220.

[0076] Exemplarily, in one implementation, the control module 150 includes:

[0077] A current direction switching circuit, wherein the current direction switching circuit is electrically connected to the semiconductor cooling plate 110 , and the current direction switching circuit is used to provide the semiconductor cooling plate 110 with a power supply current in the opposite direction.

[0078] In the present invention, at least two semiconductor cooling sheets 110, at least two first fans 130, at least two first heat conducting members 120 and at least two second heat conducting members 140 can generate an internal cold circulation air path or an internal heat circulation air path in the battery accommodating cavity 230. By default, an internal cold circulation air path can be generated in the battery accommodating cavity 230. In order to generate an internal heat circulation air path in the battery accommodating cavity 230, the semiconductor cooling sheet 110 needs to be reversely connected; in the present invention, the control module 150 may include a current direction switching circuit, the circuit direction switching circuit is electrically connected to the semiconductor cooling sheet 110, and the current direction switching circuit can provide a power supply current in the opposite direction to the semiconductor cooling sheet, thereby realizing the reverse connection of the semiconductor cooling sheet 110. It should be noted that any method that can provide a power supply current in the opposite direction to the semiconductor cooling sheet 110 is applicable to the present invention, and the present invention does not limit this.

[0079] A battery temperature control device provided by an embodiment of the present invention comprises: at least two semiconductor refrigeration sheets arranged opposite to each other, a battery receiving cavity is formed between the semiconductor refrigeration sheets arranged opposite to each other, a battery is located in the battery receiving cavity, and the semiconductor refrigeration sheet is used to supply cold or heat toward the battery receiving cavity, thereby realizing temperature control of the battery, so that the temperature of the battery is constant within a certain range; specifically, the battery temperature control device also comprises at least two first heat conducting members, the first heat conducting member is in contact with a section of the semiconductor refrigeration sheet, and is used to conduct the cold or heat generated by the side of the semiconductor refrigeration sheet close to the battery receiving cavity; at least two second heat conducting members, the second heat conducting members are in contact with the other end of the semiconductor refrigeration sheet, and are used to conduct the heat or cold generated by the side of the semiconductor refrigeration sheet away from the battery receiving cavity; one first fan of at least two first fans, the first heat conducting member corresponding thereto, another first fan of at least two first fans, and the first heat conducting member corresponding thereto are sequentially arranged in a clockwise direction in the battery receiving cavity, and when the at least two first fans jointly provide wind power, an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity. The control module of the present invention is electrically connected to the semiconductor refrigeration chip, and is used to detect the temperature of the battery, and control the operation of the semiconductor refrigeration chip and the first fan according to the detected temperature to generate an internal cold circulation air path or an internal heat circulation air path, thereby performing intelligent temperature control for the battery in the battery container, so that the battery is kept constant within a certain temperature range.

[0080] like Figure 2-5 As shown, the battery temperature control device has a housing 300 and a top cover 240, the top cover 240 is detachably connected to the housing 300, and the battery 220 is detachably connected to the top cover 240. When the top cover 240 is connected to the housing 300, the battery 220 is located in the battery accommodating cavity 230;

[0081] The inner wall of the housing 300 is fixedly connected to the first heat-conducting member 120 , and the outer wall of the housing 300 is in contact with one end of the semiconductor cooling plate 110 .

[0082] In the present invention, the battery temperature control device has an outer shell 300 and a top cover 240, the top cover 240 is detachably connected to the outer shell 300, and the battery 220 is detachably connected to the top cover 240; that is, after the battery 220 is removed from the drone (or vehicle, etc.), the battery 220 is detachably connected to the top cover 240 of the battery temperature control device, and when the top cover 240 is connected to the outer shell 300, the battery 220 is located in the battery accommodating cavity 230, and a sealed space can be provided for the battery temperature control device through the outer shell 300 and the top cover 240, and the battery 220 can be temperature controlled through the sealed space and the internal cold circulation air path or the internal heat circulation air path, so that the temperature of the battery 220 is constant within a certain range.

[0083] The semiconductor refrigeration sheet 110 and the first heat conductor 120 can be installed on the outer shell 300, one end of the semiconductor refrigeration sheet 110 is in contact with the outer wall of the outer shell 300, the first heat conductor 120 is fixedly connected to the inner wall of the outer shell 300, and the first fan 130 can be adjacent to the first heat conductor 120 and fixedly connected to the inner wall of the outer shell 300, thereby providing heat or cold for the battery accommodating cavity 230.

[0084] It should be noted that the connection method between the top cover and the outer shell, and the connection method between the battery and the top cover can be a snap connection, a magnetic connection, or a screw and nut connection, and the connection method between the top cover and the outer shell can be the same as or different from the connection method between the battery and the top cover, and the present invention does not limit this.

[0085] like Figure 1-4 As shown, the battery temperature control device provided by the present invention also includes:

[0086] At least two second fans 210 are fixedly connected to the corresponding second heat conducting member 140 , and the second fans 210 are used to provide wind force to the second heat conducting member so as to form an external cooling air path or an external heating air path outside the battery accommodating cavity 230 .

[0087] The battery temperature control device may further include at least two second fans 210, the second fans 210 are fixedly connected to the corresponding second heat conducting member 140 (the second fans 210 and the second heat conducting member 140 are arranged in a one-to-one correspondence), and the second fans 210 may be fixedly connected to the corresponding second heat conducting member 140 (the second fans 210 may have a certain interval with the corresponding second heat conducting member 140); or, the second fans may also be fixedly connected to the outer wall of the housing 300 (the second fans 210 and the second heat conducting member 140 are both fixedly connected to the outer wall of the housing 300, and the second fans 210 and the second heat conducting member 140 have a certain interval), and the second fans 210 are used to provide wind force to the second heat conducting member 140, so that an external cold air path or an external heat air path is formed outside the battery accommodating cavity 230, thereby realizing the function of heat dissipation or cooling. Through the internal cold air circulation path or the internal heat air circulation path, the temperature of the battery 220 can be kept constant within a certain temperature range.

[0088] The second fan 210 is used to provide wind force to the corresponding second heat conducting member 140. When the second end of the semiconductor cooling sheet 110 generates heat, the second fan 210 provides wind force to the corresponding second heat conducting member 140, so that an external heat air path is formed outside the battery receiving cavity 230, and the heat generated by the second end is dissipated to the outside of the housing; when the second end of the semiconductor cooling sheet 110 generates cold energy, the second fan 210 provides wind force to the corresponding second heat conducting member 140, so that an external cold energy air path is formed outside the battery receiving cavity 230, and the cold energy generated by the second end is dissipated to the outside of the housing 300. Furthermore, through the internal cold energy circulation air path or the internal heat circulation air path, the temperature of the battery 220 can be kept constant within a certain temperature range.

[0089] In the present invention, a first fan is provided corresponding to the first heat-conducting member provided for the semiconductor refrigeration plate, and a second fan is provided corresponding to the second heat-conducting member provided for the semiconductor refrigeration plate. The first fan and the second fan respectively provide wind force for the corresponding first heat-conducting member and the corresponding second heat-conducting member, so as to adjust the temperature of the first end and the second end of the semiconductor refrigeration plate, thereby realizing intelligent temperature control of the battery.

[0090] like Figure 2 As shown, in a battery temperature control device provided by the present invention, the control module 150 can be arranged in a control board (a circuit board), and the control module 150 can detect the battery ( Figure 2 The temperature of the battery is controlled by controlling the operation of the semiconductor cooling sheet 110 and the first fan 130 according to the detected temperature to control the temperature of the battery.

[0091] In the battery temperature control device of the present invention, one of the at least two first fans 130 and its corresponding first heat conductor 120, and another of the at least two first fans 130 and its corresponding first heat conductor 120 are arranged in sequence in a clockwise direction in the battery accommodating cavity 230, so as to generate an internal cold circulation air path or an internal heat circulation air path in the battery accommodating cavity 230.

[0092] The control module 150 provides power supply current to at least two semiconductor refrigeration sheets 110 to control the operation of at least two semiconductor refrigeration sheets 110, and the control module 150 provides current to at least two first fans 130 to control the rotation of at least two first fans 130; by default, the first ends of at least two semiconductor refrigeration sheets 110 generate cold energy and the second ends generate heat, at least two first heat-conducting members 120 absorb the cold energy generated by the first ends of the corresponding semiconductor refrigeration sheets 110, and at least two first fans 130 jointly provide wind force to form an internal cold energy circulation air path inside the battery accommodating cavity 230, and the wind direction of the internal cold energy circulation air path is determined by the blowing direction of the first fans 130, such as Figure 2As shown, the wind direction of the internal cooling circulation air path can be a clockwise circulation direction (such as Figure 2 In the direction indicated by the arrow in the middle), that is, the direction from one of the at least two first fans to the first heat-conducting member corresponding to the one first fan, the direction from the first heat-conducting member corresponding to the one first fan to the other first fan of the at least two first fans, the direction from the other first fan to the first heat-conducting member corresponding to the other first fan, and the direction from the first heat-conducting member corresponding to the other first fan to the one first fan; at the same time, the second heat-conducting member 140 absorbs the heat generated by the second end of the semiconductor refrigeration plate 110, and conducts the absorbed heat to the outside of the housing 300; wherein the control module 150 can also control the operation of at least two second fans 210 (provide current to at least two second fans 210), and the second fan 210 can provide wind force to the corresponding second heat-conducting member 140 to form an external heat air path outside the battery accommodating cavity 230 (the wind direction of the external heat air path is the direction from the second fan to the second heat-conducting member).

[0093] In the reverse connection case, the first ends of at least two semiconductor refrigeration plates 110 generate heat and the second ends generate cold, forming an internal heat circulation air path inside the battery accommodating cavity 230, and an external cold air path outside the battery accommodating cavity 230. The specific generation method and direction of the generated air path are similar to those in the default setting and will not be elaborated here.

[0094] In addition, since the control module 150 is also located inside the housing 300, while cooling the battery 220, the temperature of the control board where the control module 150 is located can be controlled through the internal cold circulation air path or the internal heat circulation air path to ensure the normal operation of each circuit in the control board. The present invention also provides a battery temperature control method, which is applied to the control module in the battery temperature control device, such as Figure 6 As shown, the method includes:

[0095] S601: Detecting the temperature of the battery in the battery receiving cavity;

[0096] S602: Controlling the temperature of the battery according to the detected temperature.

[0097] When the battery temperature is controlled, the control module in the battery temperature control device can detect the temperature of the battery in the battery receiving cavity, and control the temperature of the battery according to the detected temperature.

[0098] The battery temperature control method provided by the present invention, the control module in the battery temperature control device is used to detect the temperature of the battery in the battery receiving cavity, and control the semiconductor cooling plate and the first fan operation according to the detected temperature to control the temperature of the battery. Since in the battery temperature control device, one of at least two first fans and its corresponding first heat-conducting member, and another of at least two first fans and its corresponding first heat-conducting member are sequentially arranged in the battery receiving cavity in a clockwise direction, when at least two first fans jointly provide wind power, an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity; the control module controls the semiconductor cooling plate and the first fan operation, and an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity, thereby performing intelligent temperature control for the battery in the battery receiving cavity, so that the battery is kept constant within a certain temperature range.

[0099] Exemplarily, in one implementation, the temperature control of the battery according to the detected temperature includes the following steps:

[0100] If the detected temperature is higher than the safe temperature range, the battery is cooled down;

[0101] If the detected temperature is within a safe temperature range, the battery is thermostatically controlled;

[0102] If the detected temperature is lower than the safe temperature range, the battery is controlled to increase its temperature.

[0103] In the present invention, a safe temperature interval is provided, such as: a safe interval from the second temperature threshold to the first temperature threshold, the first temperature threshold is greater than the second temperature threshold, if the detected temperature is higher than the safe temperature interval, that is, the battery temperature is too high (greater than the first temperature threshold), the battery is controlled to cool down; if the detected temperature is in the safe temperature interval, that is, the battery temperature is normal (greater than or equal to the second temperature threshold, less than or equal to the first temperature threshold), the battery is controlled to be at a constant temperature; if the detected temperature is lower than the safe temperature interval (less than the second temperature threshold), the battery is controlled to heat up.

[0104] When the battery is cooled, the semiconductor refrigeration plate can be controlled to operate in the default state to generate an internal cold circulation air path in the battery housing cavity to cool the battery; when the battery is kept at a constant temperature, the semiconductor refrigeration plate can be controlled not to operate; when the battery is heated, the semiconductor refrigeration plate can be controlled to operate in the reverse connection state to generate an internal heat circulation air path in the battery housing cavity to heat the battery.

[0105] Exemplarily, in another implementation, the controlling the temperature of the battery according to the detected temperature includes:

[0106] Determining the operating status of the battery located in the battery receiving cavity;

[0107] The battery is temperature controlled according to the detected temperature and the working state of the battery.

[0108] When the temperature of the battery is controlled according to the detected temperature, the present invention takes into account that the working state of the battery may affect the temperature of the battery, and can also determine the working state of the battery located in the battery receiving cavity, and control the temperature of the battery according to the detected temperature and the working state of the drone.

[0109] Specifically, controlling the temperature of the battery according to the detected temperature and the working state of the battery includes:

[0110] If the detected temperature is within a safe temperature range and the working state is a charging state, obtaining a first cooling strategy, and performing cooling control on the battery based on the first cooling strategy;

[0111] Among them, the first cooling strategy is to control the semiconductor refrigeration plate to operate according to a first power supply current value, control the first fan to operate according to a first power, and control the second fan to operate according to a second power.

[0112] Optionally, it also includes:

[0113] If the detected temperature is higher than the safe temperature range and the working state is a working state other than the charging state, a second cooling strategy is acquired, and the battery is cooled based on the second cooling strategy;

[0114] Among them, the second cooling strategy is to control the semiconductor refrigeration plate to operate according to the second power supply current value, control the first fan to operate according to the third power, and control the second fan to operate according to the fourth power; the first power supply current value is less than the second power supply current value, the first power is less than the third power, and the second power is less than the fourth power.

[0115] Optionally, it also includes:

[0116] If the detected temperature is lower than or in a safe temperature range, and the working state is a working state other than the charging state, obtaining a temperature rise control strategy, and performing temperature rise control on the battery based on the temperature rise control strategy;

[0117] Among them, the temperature rise control strategy is to control the semiconductor refrigeration plate to operate according to the third power supply current value, control the first fan to operate according to the fifth power, and control the second fan to operate according to the sixth power; the temperature rise control of the battery based on the temperature rise control strategy includes: controlling the current direction switching circuit to send a switching signal so that the current direction switching circuit provides the semiconductor refrigeration plate with a power supply current in the opposite direction; based on the temperature rise control strategy, the battery is temperature-controlled; wherein, the power supply current direction of the semiconductor refrigeration plate in the first cooling strategy is opposite to the power supply current direction of the semiconductor refrigeration plate in the temperature rise control strategy.

[0118] If the detected temperature is in the safe temperature range and the working state is the charging state, a first cooling strategy is obtained, and based on the first cooling strategy, the semiconductor refrigeration plate is controlled to operate according to the first power supply current value, the first fan is controlled to operate according to the first power, and the second fan is controlled to operate according to the second power, so as to control the temperature of the battery; if the detected temperature is higher than the safe temperature range and the working state is other working states except the charging state, a second cooling strategy is obtained, and based on the second cooling strategy, the semiconductor refrigeration plate is controlled to operate according to the second power supply current value, the first fan is controlled to operate according to the third power, and the second fan is controlled to operate according to the fourth power, so as to control the temperature of the battery; if the detected temperature is lower than or in the safe temperature range, and the working state is other working states except the charging state, a temperature increase control strategy is obtained, and the semiconductor refrigeration plate is controlled to operate according to the third power supply current value, the first fan is controlled to operate according to the fifth power, and the second fan is controlled to operate according to the sixth power, so as to control the temperature of the battery.

[0119] Among them, if the detected temperature is higher than the safe temperature range, and the working state is other working states except the charging state (if the battery is in the charging state, when it is detected that the battery temperature is higher than the safe temperature range, the control module can control the battery to switch to other working states except the charging state, for example: disconnect the battery charging; that is, if the detected temperature is higher than the safe temperature range, the battery working state is usually other working states), the battery temperature is too high at this time, and the battery needs to be quickly cooled down; if the detected temperature is in the safe temperature range, and the working state is the charging state (battery charging will cause the battery to heat up), the battery temperature is slightly high at this time, and the battery needs to be charged and cooled down; the power supply current of the semiconductor refrigeration plate, the power of the first fan and the power of the second fan can affect the cooling intensity of the battery temperature control device for the battery accommodating cavity. Therefore, the first supply current value in the first cooling strategy is less than the second supply current value in the second cooling strategy; the first power in the first cooling strategy is less than the third power in the second cooling strategy; the second power in the first cooling strategy is less than the fourth power in the second cooling strategy.

[0120] By default, the first end of the semiconductor refrigeration plate close to the battery receiving cavity is the cold end, and the second end away from the battery receiving cavity is the hot end. At this time, the operation of the semiconductor refrigeration plate can cool the battery in the battery receiving cavity (that is, in the first cooling strategy and the second cooling strategy, the power supply current direction of the semiconductor refrigeration plate is the same, and both are the power supply current directions in default settings); in order to heat up the battery, the control module first sends a switching signal to the current direction switching circuit, so that the current direction switching circuit provides the semiconductor refrigeration plate with a power supply current in the opposite direction, so that the semiconductor refrigeration plate is reversed, and then controls the semiconductor refrigeration plate to operate according to the third power supply current value, controls the first fan to operate according to the fifth power, and controls the second fan to operate according to the sixth power, so as to control the temperature of the battery.

[0121] It should be noted that other working states except the charging state may be any state except the charging state, such as the standby state, etc.; when the working state is other working states and the detected temperature is higher than the safe temperature range, it can trigger the acquisition of the first cooling strategy, and the battery can be cooled based on the first cooling strategy; and, when the working state is other working states and the detected temperature is lower than the safe temperature range, it can trigger the acquisition of the heating control strategy, and the battery can be heated based on the heating control strategy. The present invention does not limit this.

[0122] Among them, the control module can be a control circuit in a battery temperature control device, the control circuit can be set in a control board, and the control board can store the temperature and working status, and the correspondence between the battery temperature control strategy (the battery temperature control strategy includes a first cooling strategy, a second cooling strategy, a heating control strategy, and other control strategies for controlling battery heating or cooling). After detecting the temperature and working status of the battery, the control module can determine the corresponding battery temperature control strategy according to the correspondence and perform battery temperature control.

[0123] It should be noted that the control module can detect the temperature of the battery in the battery receiving cavity through a temperature sensor, and the temperature sensor can be set in the battery receiving cavity. The present invention does not limit the way the control module detects the temperature, and the location of the temperature sensor. In addition, the present invention can detect the temperature of the battery in real time, and control the temperature of the battery according to the real-time temperature of the battery, or detect the temperature of the battery for multiple consecutive times or within a specified period of time, and control the temperature of the battery according to the detected temperature.

[0124] It should be noted that the current direction switching circuit can be any circuit with a current direction switching function, such as a DC motor control circuit, and specifically can be an H-bridge circuit, which is not limited in the present invention.

[0125] Exemplarily, in the second cooling strategy, the second power supply current value is 7A-8A, the third power is 10W, the fourth power is 10W, and the power of the semiconductor refrigeration plate can be 100w; in the first cooling strategy, the first power supply current value is 4A, the first power is 5W, the second power is 5W, and the power of the semiconductor refrigeration plate can be less than 50w. At this time, the power supply current value and the fan power in the first cooling strategy are about half of the power supply current value and the fan power in the second cooling strategy, respectively. It should be noted that in any temperature control strategy, the power of the first fan and the power of the second fan can be the same, of course, there can be a small difference, and the present invention is not limited to this.

[0126] It can be seen that the present invention can flexibly perform cooling at different temperatures through the setting of temperature thresholds, adapt different temperatures (temperatures greater than the first temperature threshold, and temperatures greater than or equal to the second temperature threshold and less than or equal to the first temperature threshold) to perform corresponding cooling, and when the temperature is less than the second temperature threshold, the battery is heated up in time; thereby realizing intelligent control of the battery temperature.

[0127] Of course, different battery temperatures may correspond to the same cooling strategy. Regardless of the first cooling strategy or the second cooling strategy, the higher the battery temperature, the higher the power supply current in the corresponding cooling strategy, the higher the corresponding power of the first fan, and the higher the corresponding power of the second fan. For example: for the first temperature and the second temperature, the first temperature and the second temperature are both greater than the first temperature threshold, and the first temperature is greater than the second temperature. Although the first temperature and the second temperature are both controlled according to the second cooling strategy for battery temperature control, the power supply current, the power of the first fan, and the power of the second fan in the second cooling strategy corresponding to the first temperature are respectively greater than the power supply current, the power of the first fan, and the power of the second fan in the second cooling strategy corresponding to the second temperature.

[0128] After the battery is placed in the battery receiving cavity of the battery temperature control device, the battery can be charged by using the charging module in the battery temperature control device (the control module can include a charging module, and the charging module can be arranged in the control board). The control module can determine the working status of the battery based on the charging module (for example, the control module can communicate with the charging module. If it is detected that the battery is connected to the charging module and the charging module is discharging, it is determined that the battery is in a charging state; otherwise, it is determined that the battery is in other working states). Of course, the control module can also be connected to a visual module to judge the working status of the battery through the visual module (by judging whether the battery is connected to the charging module through the image captured by the visual module, so as to judge the working status of the battery). The present invention does not limit the method for determining the working status of the battery.

[0129] In addition, when the detected temperature is within the safe temperature range, if the battery is cooled, the working state of the battery may be a charging state or other working state. When the temperature is the same, the power supply current and fan power of the temperature control strategy in the charging state are respectively greater than the power supply current and fan power of the temperature control strategy in other working states. When the detected temperature is lower than the safe temperature range, the present invention also takes into account the influence of the working state of the battery on the battery temperature. When the temperature is the same, the working state of the battery is a charging state, and a lower power supply current and fan power are required to heat up the battery compared to when the working state of the battery is other working states; that is, the power supply current and fan power of the temperature control strategy in the charging state are respectively less than the power supply current and fan power of the temperature control strategy in other working states.

[0130] In the present invention, the temperature control strategy corresponding to the battery can be determined more accurately through the battery temperature and the battery working state, and the battery temperature and the battery working state can be intelligently adapted to perform temperature control to increase or decrease the temperature of the battery.

[0131] In addition, each temperature control strategy, including the first cooling strategy, the second cooling strategy and the temperature increase control strategy, meets predetermined conditions, including that the current value of the power supply current represented by the strategy is positively correlated with the power of the first fan and the power of the second fan represented by the strategy.

[0132] In the present invention, the current value of the power supply current represented by each strategy is positively correlated with the power of the first fan and the power of the second fan represented by the strategy; for example: the corresponding power of the first fan and the power of the second fan can be determined by the positive correlation function relationship and the current value of the power supply current; that is, the temperature control strategy can only include the current value of the power supply current, and the corresponding power of the first fan and the power of the second fan can be determined according to the current value of the power supply current and the positive correlation function of the power supply current and the power of the first fan and the power of the second fan respectively.

[0133] It should be noted that multiple battery temperature control devices can be integrated into the same device, and the battery storage cavity in each battery temperature control device can store one or more batteries of any model (such as different models of batteries, which can be batteries of different models of drones, which can include large drones, medium drones, or small drones). After any battery is stored in a battery storage cavity in a battery temperature control device, the battery temperature control can be achieved in a similar manner. In addition, if there are multiple batteries with different temperatures in the battery storage cavity of the battery temperature control device, there may be batteries that need to be heated up and batteries that need to be cooled down. At this time, the temperature can be controlled according to the temperature of the battery storage cavity.

[0134] A battery temperature control device provided by the present invention is introduced below in conjunction with another embodiment.

[0135] like Figure 4 As shown, a battery intelligent temperature control device provided by the present invention includes: two semiconductor cooling sheets (thermoelectric cooling sheets, not shown in the figure), two second heat conducting members 140, two first fans 130, two second fans 210, two first heat conducting members 120, and a control panel (control module). The first heat conducting member is composed of a plurality of metal sheets (fins), and there is a certain interval between each metal sheet. The material of the metal sheet can be an aluminum alloy material. The temperature of the semiconductor cooling sheet (thermoelectric cooling sheet) corresponding to the two sides is different under different powers or different power supply currents, but the temperature difference on both sides is the same under different powers or different power supply currents. One side (first end) of the semiconductor cooling sheet (thermoelectric cooling sheet) is attached to the first heat conducting member, and the other side (second end) of the semiconductor cooling sheet (thermoelectric cooling sheet) is attached to the second heat conducting member, the first heat conducting member is electrically connected to the first fan, and the second heat conducting member is electrically connected to the second fan.

[0136] like Figure 7As shown, the control module may control the temperature of the battery by the following steps:

[0137] S701: Determine the temperature of the battery;

[0138] S702: Determine the working status of the battery;

[0139] S703: Determine the corresponding strategy according to the temperature and working status; if the detected temperature is in the safe temperature range and the working status is the charging status, determine that the corresponding temperature control strategy is the first cooling strategy, and execute step S704; if the detected temperature is higher than the safe temperature range and the working status is other than the charging status, determine that the corresponding temperature control strategy is the second cooling strategy, and execute step S705; if the detected temperature is lower than or in the safe temperature range, and the working status is other than the charging status, determine that the corresponding temperature control strategy is the heating control strategy, and execute step S706.

[0140] S704: Perform temperature control according to a first cooling strategy; that is, control the semiconductor refrigeration plate to operate according to a first power supply current value, control the first fan to operate according to a first power, and control the second fan to operate according to a second power, so as to charge and cool the battery surface.

[0141] S705: Perform temperature control according to the second cooling strategy; that is, control the semiconductor refrigeration plate to operate according to the second power supply current value, control the first fan to operate according to the third power, and control the second fan to operate according to the fourth power, so as to quickly cool the battery surface.

[0142] S706: Perform temperature control according to the temperature rise control strategy; that is, control the current direction switching circuit to send a switching signal so that the current direction switching circuit provides the semiconductor refrigeration plate with a power supply current in the opposite direction, controls the semiconductor refrigeration plate to operate according to the third power supply current value, controls the first fan to operate according to the fifth power, and controls the second fan to operate according to the sixth power.

[0143] Among them, the current value of the power supply current of the semiconductor refrigeration plate in any strategy is in a preset functional relationship (positive correlation) with the power of the first fan and the power of the second fan, and is stored in the control board in the form of a control program.

[0144] Therefore, the present invention realizes intelligent control of battery temperature through a first heat conducting member, a second heat conducting member, a control module, a semiconductor cooling sheet (thermoelectric cooling sheet), a first fan and a second fan, and a corresponding temperature control strategy, so that the battery surface is always maintained at 5-45 degrees Celsius (the first temperature threshold can be 45 degrees Celsius, and the second temperature threshold can be 5 degrees Celsius, which is only an example and is not limited to this in the present invention).

[0145] The battery temperature control method of the present invention heats the battery when it is at a low temperature and dissipates heat when it is at a high temperature, and can perform dynamic intelligent temperature control, and can keep the battery in a more suitable temperature range in any state of the battery (charging state or other working state); the present invention selects a suitable temperature control strategy according to the different working states and temperatures of the battery, and can achieve power saving (if the battery needs to be heated when it is in a charging state, a smaller power supply current and fan power can be used). The semiconductor refrigeration plate of the present invention forms sufficient cooling capacity and heating capacity (internal cooling capacity circulation air path or internal heat circulation air path), and the first fan provides a high-speed airflow passing over the battery surface, forming a sufficiently cold or hot wind passing over the battery surface, and circulates inside the battery temperature control device, with basically no loss of cooling capacity and heat. Compared with the prior art, more intelligent and better battery temperature control can be achieved.

[0146] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive Solid State Disk (SSD)), etc.

[0147] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0148] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the battery temperature control method embodiment, since it is basically similar to the battery temperature control device embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0149] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A battery temperature control device, characterized in that: include: At least two semiconductor refrigeration sheets arranged opposite to each other, a battery receiving cavity is formed between the semiconductor refrigeration sheets arranged opposite to each other, a battery is located in the battery receiving cavity, and the semiconductor refrigeration sheets are used to supply cold or heat to the battery receiving cavity; At least two first heat-conducting members, wherein the first heat-conducting members are in contact with one end of the semiconductor cooling sheet, and the first heat-conducting members are used to conduct the cold or heat generated by a side of the semiconductor cooling sheet close to the battery receiving cavity; At least two second heat-conducting members, the second heat-conducting members are in contact with the other end of the semiconductor cooling sheet, and the second heat-conducting members are used to conduct heat or cold generated by a side of the semiconductor cooling sheet away from the battery receiving cavity; At least two first fans, one of the at least two first fans and its corresponding first heat-conducting member, and another of the at least two first fans and its corresponding first heat-conducting member are sequentially arranged in the battery receiving cavity in a clockwise direction, and when the at least two first fans jointly provide wind power, an internal cold circulation air path or an internal heat circulation air path is generated in the battery receiving cavity; A control module is electrically connected to the semiconductor refrigeration sheet, and is used to detect the temperature of the battery, and control the operation of the semiconductor refrigeration sheet and the first fan according to the detected temperature to control the temperature of the battery.

2. The battery temperature control device according to claim 1, characterized in that: The battery temperature control device comprises a shell and a top cover, wherein the top cover is detachably connected to the shell, and the battery is detachably connected to the top cover, and when the top cover is connected to the shell, the battery is located in the battery accommodating cavity; The inner wall of the shell is fixedly connected to the first heat-conducting member, and the outer wall of the shell is in contact with one end of the semiconductor refrigeration plate.

3. The battery temperature control device according to claim 2, characterized in that: The first heat-conducting member has a plurality of first fins arranged in parallel, and the first fins are used to conduct the cold or heat generated by a side of the semiconductor refrigeration plate close to the battery accommodating cavity.

4. The battery temperature control device according to claim 1, characterized in that: The second heat-conducting member includes a heat sink or a plurality of second fins arranged in parallel, and the second fins or the heat sink are used to conduct the heat or cold generated by the side of the semiconductor cooling plate away from the battery receiving cavity.

5. The battery temperature control device according to claim 1, characterized in that: The battery temperature control device also includes: At least two second fans are fixedly connected to corresponding second heat-conducting members, and the second fans are used to provide wind force to the second heat-conducting members so as to form an external cooling air path or an external heating air path outside the battery accommodating cavity.

6. A battery temperature control method, characterized in that: A control module applied to a battery temperature control device according to any one of claims 1 to 5, the method comprising: detecting a temperature of the battery in the battery receiving cavity; The battery is temperature controlled according to the detected temperature; wherein, the battery temperature control according to the detected temperature includes the following steps: if the detected temperature is higher than a safe temperature range, the battery is temperature-controlled; if the detected temperature is within the safe temperature range, the battery is temperature-controlled; if the detected temperature is lower than the safe temperature range, the battery is temperature-controlled.

7. The method according to claim 6, characterized in that The step of controlling the temperature of the battery according to the detected temperature comprises: Determining the operating status of the battery in the battery receiving cavity; The battery is temperature controlled according to the detected temperature and the working state of the battery.

8. The method according to claim 7, characterized in that The step of controlling the temperature of the battery according to the detected temperature and the working state of the battery comprises: If the detected temperature is within a safe temperature range and the working state is a charging state, obtaining a first cooling strategy, and performing cooling control on the battery based on the first cooling strategy; Among them, the first cooling strategy is to control the semiconductor refrigeration plate to operate according to a first power supply current value, control the first fan to operate according to a first power, and control the second fan to operate according to a second power.

9. The method according to claim 8, characterized in that Also includes: If the detected temperature is higher than the safe temperature range and the working state is a working state other than the charging state, a second cooling strategy is acquired, and the battery is cooled based on the second cooling strategy; Among them, the second cooling strategy is to control the semiconductor refrigeration plate to operate according to the second power supply current value, control the first fan to operate according to the third power, and control the second fan to operate according to the fourth power; the first power supply current value is less than the second power supply current value, the first power is less than the third power, and the second power is less than the fourth power.

10. The method according to claim 7, characterized in that Also includes: If the detected temperature is lower than or in a safe temperature range, and the working state is a working state other than the charging state, obtaining a temperature rise control strategy, and performing temperature rise control on the battery based on the temperature rise control strategy; Among them, the temperature rise control strategy is to control the semiconductor refrigeration plate to operate according to the third power supply current value, control the first fan to operate according to the fifth power, and control the second fan to operate according to the sixth power; the temperature rise control of the battery based on the temperature rise control strategy includes: controlling the current direction switching circuit to send a switching signal so that the current direction switching circuit provides the semiconductor refrigeration plate with a power supply current in the opposite direction; based on the temperature rise control strategy, the battery is temperature-controlled; wherein, the power supply current direction of the semiconductor refrigeration plate in the first cooling strategy is opposite to the power supply current direction of the semiconductor refrigeration plate in the temperature rise control strategy.

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