Heat dissipation device

Abstract

The disclosed embodiment relates to the field of energy storage, and provides a heat dissipation device applied to a high-power driver, the heat dissipation device comprising: a waterproof and dustproof cavity having at least one openable shell and used to place the high-power driver; a temperature sensor configured to obtain first detection information and feed back to a controller; a humidity sensor configured to obtain second detection information and feed back to the controller; a pressure sensor configured to obtain third detection information and feed back to the controller; a liquid sensor configured to obtain fourth detection information and feed back to the controller; a controller configured to determine whether the waterproof and dustproof cavity is in a preset environment based on the first, second, third and fourth detection information; if it is determined to be in the preset environment, the openable shell is opened; if it is determined not to be in the preset environment, the openable shell is closed. The disclosed embodiment is at least conducive to heat dissipation of the waterproof and dustproof cavity, and ensures that the IP protection level of the waterproof and dustproof cavity is high.

Description

Technical Field

[0001] The disclosed embodiment relates to the field of energy storage and provides a heat dissipation device. Background Art

[0002] Energy storage systems generally have many high-power drivers, which generate a lot of heat when working. Heat dissipation needs to be done in time to ensure the working stability of the high-power drivers. In order to meet the corresponding power requirements, the IP (Ingress Protection) protection level of many high-power drivers is very high.

[0003] However, in order to meet the heat dissipation requirements, heat dissipation holes are often used on the cavity of high-power drivers for heat dissipation. When the humidity of the external environment is low, moisture in the air will enter the cavity through the heat dissipation holes, causing the components in the cavity to become damp or even damaged. In order to meet the high IP (Ingress Protection) protection level, the heat is dissipated through the heat transfer of the cavity itself, and no active heat dissipation measures are adopted. The cavity dissipates heat naturally, and the high temperature in the cavity cannot be effectively discharged. The heat accumulates, and the temperature in the cavity becomes higher and higher, which will also cause the components in the cavity to work unstably or be damaged. Summary of the invention

[0004] The disclosed embodiment provides a heat dissipation device, which is at least conducive to heat dissipation of a waterproof and dustproof cavity and ensures that the IP protection level of the waterproof and dustproof cavity is high.

[0005] According to some embodiments of the present disclosure, on the one hand, the embodiments of the present disclosure provide a heat dissipation device applied to a high-power driver, including: a waterproof and dustproof cavity surrounded by an outer shell, the outer shell having at least one openable shell, the waterproof and dustproof cavity being used to place the high-power driver, the high-power driver including an inverter or a converter; a temperature sensor configured to detect a temperature difference between the inside and outside of the waterproof and dustproof cavity, and to feed back the detection result as first detection information to a controller; a humidity sensor configured to detect the humidity outside the waterproof and dustproof cavity, and to feed back the detection result as second detection information to the controller; a pressure sensor configured to detect the pressure of the external environment on the waterproof and dustproof cavity, and to feed back the detection result as third detection information to the controller ; The liquid sensor is configured to detect the height of the liquid outside the waterproof and dustproof cavity with the bottom surface of the waterproof and dustproof cavity as a reference surface, and feed back the detection result to the controller as the fourth detection information; the controller is configured to receive and determine whether the waterproof and dustproof cavity is in a preset environment based on the first detection information, the second detection information, the third detection information and the fourth detection information; wherein, if it is determined that the waterproof and dustproof cavity is in the preset environment, the controller controls the openable shell to open, so as to control the waterproof and dustproof cavity to perform internal and external air convection with the help of the opened openable shell; if it is determined that the waterproof and dustproof cavity is not in the preset environment, the controller controls the openable shell to close, so that the waterproof and dustproof cavity is in a sealed state.

[0006] In some embodiments, the controller determines whether the waterproof and dustproof cavity is in the preset environment based on the first detection information, the second detection information, the third detection information and the fourth detection information, including: determining whether the waterproof and dustproof cavity meets the first preset condition based on the first detection information, determining whether the waterproof and dustproof cavity meets the second preset condition based on the second detection information, determining whether the waterproof and dustproof cavity meets the third preset condition based on the third detection information, and determining whether the waterproof and dustproof cavity meets the fourth preset condition based on the fourth detection information; if it is determined that the waterproof and dustproof cavity satisfies the first preset condition, the second preset condition, the third preset condition and the fourth preset condition at the same time If the waterproof and dustproof cavity satisfies the first preset condition, it is judged that the waterproof and dustproof cavity is in the preset environment; if it is judged that the waterproof and dustproof cavity does not satisfy at least one of the first preset condition, the second preset condition, the third preset condition and the fourth preset condition, it is judged that the waterproof and dustproof cavity is not in the preset environment; wherein, the first preset condition is that the temperature difference between the inside and outside of the waterproof and dustproof cavity is greater than or equal to a first preset value, the second preset condition is that the humidity outside the waterproof and dustproof cavity is less than a second preset value, the third preset condition is that the pressure of the external environment on the waterproof and dustproof cavity is less than a third preset value, and the fourth preset condition is that the height of the liquid outside the waterproof and dustproof cavity is lower than the bottom of the waterproof and dustproof cavity.

[0007] In some embodiments, the first preset value is 20°C~40°C; and / or, the second preset value is 70%~80%; and / or, the third preset value is 0.8MPa~1.2MPa.

[0008] In some embodiments, the heat dissipation device also includes: a heat dissipation unit, which is arranged in the waterproof and dustproof cavity; the controller is also configured to start the heat dissipation unit if the openable shell is controlled to open based on the first detection information, the second detection information, the third detection information and the fourth detection information, so that the heat dissipation unit is in a working state.

[0009] In some embodiments, the waterproof and dustproof cavity further has at least one heat generating unit, and the heat dissipation unit is located in a region of the waterproof and dustproof cavity close to the heat generating unit.

[0010] In some embodiments, the heat dissipation unit includes at least one pair of fans, and the pair of fans includes an intake fan and an exhaust fan.

[0011] In some embodiments, the outer surface area of ​​the entire shell is a first area, the outer surface area of ​​the openable shell is a second area, and the ratio of the second area to the first area is 20%-40%.

[0012] In some embodiments, the housing has at least two openable shells arranged at intervals; the preset environment includes a primary preset environment and a secondary preset environment; the controller is also configured to, if it is judged that the waterproof and dustproof cavity is in the primary preset environment based on the first detection information, the second detection information, the third detection information and the fourth detection information, control N of the openable shells to open; if it is judged that the waterproof and dustproof cavity is in the secondary preset environment based on the first detection information, the second detection information, the third detection information and the fourth detection information, control more than N of the openable shells to open, where N is a positive integer greater than or equal to 1.

[0013] In some embodiments, the heat dissipation device also includes: a smoke sensor, configured to: detect smoke in the external environment outside the waterproof and dustproof cavity, and feed back the detection result to the controller as fifth detection information; the controller is also configured to determine whether there is smoke outside the waterproof and dustproof cavity based on the fifth detection information, wherein if it is determined that there is smoke outside the waterproof and dustproof cavity, the openable shell is controlled to be closed; if it is determined that there is no smoke outside the waterproof and dustproof cavity, whether the waterproof and dustproof cavity is in the preset environment is determined based on the first detection information, the second detection information, the third detection information and the fourth detection information.

[0014] In some embodiments, the heat dissipation device also includes: a camera, configured to: image the external environment outside the waterproof and dustproof cavity, and feed back the imaging result to the controller as sixth detection information; the controller is also configured to determine whether there is a living body outside the waterproof and dustproof cavity based on the sixth detection information, wherein if it is determined that there is a living body outside the waterproof and dustproof cavity, the openable shell is controlled to be closed; if it is determined that there is no living body outside the waterproof and dustproof cavity, whether the waterproof and dustproof cavity is in the preset environment is determined based on the first detection information, the second detection information, the third detection information and the fourth detection information.

[0015] The technical solution provided by the embodiments of the present disclosure has at least the following advantages:

[0016] While designing an openable shell on the outer shell of the waterproof and dustproof cavity, a temperature sensor, a humidity sensor, a pressure sensor and a liquid sensor are designed to comprehensively detect the environment in which the waterproof and dustproof cavity is located from at least four aspects, and a controller is designed to comprehensively consider the above-mentioned various detection information to determine whether the waterproof and dustproof cavity is in a preset environment. Based on the cooperation of the temperature sensor, the humidity sensor, the pressure sensor, the liquid sensor and the controller, only when the waterproof and dustproof cavity is in the preset environment, the controller will control the openable shell to open, so that the waterproof and dustproof cavity can carry out internal and external air convection with the help of the opened openable shell to achieve rapid heat dissipation of the waterproof and dustproof cavity. Further, when the waterproof and dustproof cavity is not in the preset environment, the controller controls the openable shell to close, so that the waterproof and dustproof cavity is in a sealed state to ensure that the IP protection level of the waterproof and dustproof cavity is high. It is worth noting that the waterproof and dustproof cavity being in the preset environment can be regarded as the environment in which the waterproof and dustproof cavity is located. There is no water vapor or other debris that will damage the components in the waterproof and dustproof cavity, so as to ensure that when the openable shell is opened, the components in the waterproof and dustproof cavity will not be damaged by the opening of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings, and these exemplified descriptions do not constitute a limitation on the embodiments. Unless otherwise specified, the pictures in the drawings do not constitute a scale limitation. In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the traditional technology, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A simplified structural schematic diagram of a heat dissipation device provided in one embodiment of the present disclosure;

[0019] Figure 2 A partial top view structural schematic diagram of a heat dissipation device provided in one embodiment of the present disclosure;

[0020] Figure 3 A schematic diagram of a partial cross-sectional structure of a waterproof and dustproof cavity in a heat dissipation device provided in an embodiment of the present disclosure;

[0021] Figure 4 A functional block diagram of a heat dissipation device provided in one embodiment of the present disclosure;

[0022] Figure 5 A schematic diagram of a partial cross-sectional structure of a heat dissipation device provided in one embodiment of the present disclosure;

[0023] Figure 6Another partial cross-sectional structural schematic diagram of a heat dissipation device provided by an embodiment of the present disclosure;

[0024] Figure 7 A side view of a dustproof and waterproof cavity in a heat dissipation device provided in an embodiment of the present disclosure;

[0025] Figure 8 Another functional block diagram of a heat dissipation device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] As can be seen from the background art, it is difficult to achieve both effective heat dissipation and a high IP protection level for a cavity of a high-power driver.

[0027] The present disclosure implements a heat dissipation device, which designs an openable shell on the outer shell of the waterproof and dustproof cavity, and designs a temperature sensor, a humidity sensor, a pressure sensor and a liquid sensor to comprehensively detect the environment of the waterproof and dustproof cavity from at least four aspects, and designs a controller to comprehensively consider the above-mentioned various detection information to determine whether the waterproof and dustproof cavity is in a preset environment. Based on the cooperation of the temperature sensor, the humidity sensor, the pressure sensor, the liquid sensor and the controller, only when the waterproof and dustproof cavity is in the preset environment, the controller will control the openable shell to open, so that the waterproof and dustproof cavity can carry out internal and external air convection with the help of the opened openable shell, so as to achieve rapid heat dissipation of the waterproof and dustproof cavity. Furthermore, when the waterproof and dustproof cavity is not in the preset environment, the controller controls the openable shell to close, so that the waterproof and dustproof cavity is in a sealed state, so as to ensure that the IP protection level of the waterproof and dustproof cavity is high. It is worth noting that the waterproof and dustproof cavity is in a preset environment, which can be regarded as an environment in which there is no water vapor or other debris that will cause damage to the components in the waterproof and dustproof cavity, so as to ensure that when the openable shell is opened, the components in the waterproof and dustproof cavity will not be damaged due to the opening of the shell.

[0028] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0029] 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.

[0030] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0031] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0032] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0033] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] In the accompanying drawings corresponding to the embodiments of the present application, the thickness and area of ​​the layer are exaggerated for better understanding and ease of description. When describing a component (such as a layer, film, region or substrate) on another component or on the surface of another component, the component can be "directly" located on the surface of the other component, or a third component can exist between the two components. On the contrary, when describing a component on the surface of another component or when another component is formed or provided on the surface of a component, it means that there is no third component between the two components. In addition, when describing a component as "substantially" formed on another component, it means that the component is not formed on the entire surface (or front surface) of the other component, nor is it formed on a partial edge of the entire surface.

[0035] In the description of the embodiments of the present application, when a component "includes" another component, unless otherwise specified, other components are not excluded, and other components may be further included. In addition, when a component such as a layer, film, region, or plate is referred to as "on / located on" another component, it can be "directly on" the other component (i.e., located on the surface of the other component without other components between the two), or another component may exist in between. In addition, when a component such as a layer, film, region, or plate is "directly located on" another component, or when a component such as a layer, film, region, or plate is located on the surface of another component, it means that no other components are located in between.

[0036] The terms used in the description of the various embodiments described herein are only used to describe specific embodiments and are not intended to be limiting. As used in the description of the various embodiments described and in the appended claims, "the components" are also intended to include plural forms unless the context clearly indicates otherwise. Among them, components include components such as layers, films, regions, or plates.

[0037] The following will describe the various embodiments of the present disclosure in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present disclosure, many technical details are provided in order to enable the reader to better understand the embodiments of the present disclosure. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the embodiments of the present disclosure can be implemented.

[0038] An embodiment of the present disclosure provides a heat dissipation device, which will be described in detail below with reference to the accompanying drawings.

[0039] Combined with reference Figures 1 to 3The heat dissipation device 100 is applied to a high-power driver. The heat dissipation device 100 includes: a waterproof and dustproof cavity 101 surrounded by a shell 111, the shell 111 has at least one openable shell 121, the waterproof and dustproof cavity 101 is used to place the high-power driver, and the high-power driver includes an inverter or a converter; a temperature sensor 102 is configured to detect the temperature difference between the inside of the waterproof and dustproof cavity 101 and the outside of the waterproof and dustproof cavity 101, and feed back the detection result as the first detection information test1 to the controller 103; a humidity sensor 104 is configured to detect the humidity outside the waterproof and dustproof cavity 101, and feed back the detection result as the second detection information test2 to the controller 103; a pressure sensor 105 is configured to detect the pressure of the external environment on the waterproof and dustproof cavity 101, and feed back the detection result as the third detection information test3 to the controller 103; a liquid The body sensor 106 is configured to detect the height of the liquid outside the waterproof and dustproof cavity 101 with the bottom surface of the waterproof and dustproof cavity 101 as a reference surface, and feed back the detection result as the fourth detection information test4 to the controller 103; the controller 103 is configured to receive and determine whether the waterproof and dustproof cavity 101 is in a preset environment based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4; wherein, if it is determined that the waterproof and dustproof cavity 101 is in the preset environment, the controller 103 controls the openable shell 121 to open, so as to control the waterproof and dustproof cavity 101 to perform internal and external air convection with the help of the opened openable shell 121; if it is determined that the waterproof and dustproof cavity 101 is not in the preset environment, the controller 103 controls the openable shell 121 to close, so that the waterproof and dustproof cavity 101 is in a sealed state.

[0040] It should be noted that Figure 1 A simplified structural schematic diagram of a heat dissipation device provided in one embodiment of the present disclosure; Figure 2 A partial top view structural schematic diagram of a heat dissipation device provided in one embodiment of the present disclosure; Figure 3A schematic diagram of a partial cross-sectional structure of a waterproof and dustproof cavity in a heat dissipation device provided in an embodiment of the present disclosure. In addition, in order to illustrate the components included in the heat dissipation device 100, the waterproof and dustproof cavity 101, the temperature sensor 102, the humidity sensor 104, the pressure sensor 105, the liquid sensor 106 and the controller 103 are illustrated with different rectangles. In actual applications, in order to meet the installation requirements of other components in the heat dissipation device 100, adjust the test orientation of the temperature sensor 102, the humidity sensor 104, the pressure sensor 105, the liquid sensor 106, or adjust the distance between the controller 103 and the waterproof and dustproof cavity 101, the positional relationship of the temperature sensor 102, the humidity sensor 104, the pressure sensor 105, the liquid sensor 106 and the controller 103 relative to the waterproof and dustproof cavity 101 can be flexibly adjusted. Figure 1 This is just an example. Figure 2 The internal structure of the heat dissipation device 100 and the waterproof and dustproof cavity 101 is schematically shown, and the top surface of the heat dissipation device 100 and the waterproof and dustproof cavity 101 is not illustrated. The waterproof and dustproof cavity 101 includes many components, which are not described here. In addition to the waterproof and dustproof cavity 101, the heat dissipation device 100 also includes other components, which are not described here.

[0041] It is worth noting that in order to meet the requirement that the waterproof and dustproof cavity 101 has a high IP protection level and will not be affected by foreign objects such as water or dust, the timing of opening the openable shell 121 on the outer shell 111 of the waterproof and dustproof cavity 101 is relatively harsh. It will not be opened when a certain condition is met, but at least the controller 103 will control the openable shell 121 to open after determining that the above four types of detection information meet the requirements, so that the waterproof and dustproof cavity 101 is connected to the external environment, so that internal and external air convection can be carried out to quickly dissipate heat and cool down the waterproof and dustproof cavity 101, avoid heat accumulation in the waterproof and dustproof cavity 101, and avoid the temperature in the waterproof and dustproof cavity 101 becoming higher and higher, which will cause the components in the waterproof and dustproof cavity 101 to work unstably or be damaged. In other words, in the heat dissipation device provided by an embodiment of the present disclosure, based on the comprehensive judgment of the controller 103 on the environment in which the waterproof and dustproof cavity 101 is located, when the waterproof and dustproof cavity 101 is quickly dissipated, the components in the waterproof and dustproof cavity 101 can be effectively prevented from being damaged by water vapor or other debris; at other times, the controller 103 will control the waterproof and dustproof cavity 101 to be in a sealed state to ensure that the IP protection level of the waterproof and dustproof cavity 101 is high.

[0042] In some examples, the IP protection level of the waterproof and dustproof cavity 101 may be IP65 or above, wherein the IP protection level of IP65 means that the intrusion of foreign objects and dust is completely prevented, and low-pressure spraying at any angle is withstood.

[0043] Specifically, the controller 103 not only needs to use the first detection information test1 obtained by the temperature sensor 102 to determine whether the temperature in the waterproof and dustproof cavity 101 is too high, so as to determine whether the waterproof and dustproof cavity 101 needs to dissipate heat quickly, but if it is determined that the temperature difference between the inside and outside of the waterproof and dustproof cavity 101 is not very high, and it is determined that the temperature in the waterproof and dustproof cavity 101 is not high, then the openable housing 121 is controlled to be closed, so that the waterproof and dustproof cavity 101 is in a sealed state, meets a higher IP protection level, and dissipates heat by heat transfer of the waterproof and dustproof cavity 101 itself. Moreover, on the premise that the controller 103 determines that the temperature in the waterproof and dustproof cavity 101 is too high based on the first detection information test1, it is also necessary to use the second detection information test2 obtained by the humidity sensor 104 to determine the humidity outside the waterproof and dustproof cavity 101, the third detection information test3 obtained by the pressure sensor 105 to determine the pressure of the external environment on the waterproof and dustproof cavity 101, and the fourth detection information test4 obtained by the liquid sensor 106 to determine whether the height of the liquid outside the waterproof and dustproof cavity 101 is in accordance with expectations.

[0044] Based on this, when the controller 103 determines that the temperature difference between the inside and outside of the waterproof and dustproof cavity 101 is very high, it also needs to determine that the humidity, pressure and liquid height outside the waterproof and dustproof cavity 101 meet expectations. Only then will the controller 103 control the openable shell 121 to open, effectively ensuring that the components in the waterproof and dustproof cavity 101 will not be damaged by water vapor or other debris. In other words, even if the openable shell 121 is opened, since the waterproof and dustproof cavity 101 is in a preset environment, the protection level of the waterproof and dustproof cavity 101 is also relatively high. Therefore, in the heat dissipation device 100 provided in an embodiment of the present disclosure, with the help of the cooperation between the temperature sensor 102, the humidity sensor 104, the pressure sensor 105, the liquid sensor 106, the controller 103 and the openable shell 121, it is beneficial to achieve heat dissipation of the waterproof and dustproof cavity 101 while further ensuring that the IP protection level of the waterproof and dustproof cavity 101 is relatively high.

[0045] The embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0046] In some embodiments, reference Figure 4 , Figure 4A functional block diagram of a heat dissipation device provided in an embodiment of the present disclosure, wherein the controller 103 determines whether the waterproof and dustproof cavity 101 is in a preset environment based on first detection information test1, second detection information test2, third detection information test3 and fourth detection information test4, including: determining whether the waterproof and dustproof cavity 101 meets the first preset condition based on the first detection information test1, determining whether the waterproof and dustproof cavity 101 meets the second preset condition based on the second detection information test2, determining whether the waterproof and dustproof cavity 101 meets the third preset condition based on the third detection information test3, and determining whether the waterproof and dustproof cavity 101 meets the fourth preset condition based on the fourth detection information test4; if it is determined that the waterproof and dustproof cavity 101 satisfies the first preset condition, the second preset condition, the third preset condition and the fourth preset condition at the same time, then it is determined that the waterproof and dustproof cavity 101 is in the preset environment; if it is determined that the waterproof and dustproof cavity 101 does not meet at least one of the first preset condition, the second preset condition, the third preset condition and the fourth preset condition, then it is determined that the waterproof and dustproof cavity 101 is not in the preset environment.

[0047] Among them, the first preset condition is that the temperature difference between the inside and outside of the waterproof and dustproof cavity 101 is greater than or equal to the first preset value, the second preset condition is that the humidity outside the waterproof and dustproof cavity 101 is less than the second preset value, the third preset condition is that the pressure of the external environment on the waterproof and dustproof cavity 101 is less than the third preset value, and the fourth preset condition is that the height of the liquid outside the waterproof and dustproof cavity 101 is lower than the bottom of the waterproof and dustproof cavity 101.

[0048] It is worth noting that, firstly, the controller 103 determines whether the temperature difference between the inside and outside of the waterproof and dustproof cavity 101 is greater than or equal to a first preset value, that is, whether a large amount of heat has accumulated in the waterproof and dustproof cavity 101, and whether the heat can be effectively dissipated by the heat transfer of the waterproof and dustproof cavity 101 itself, so as to avoid the openable shell 121 being opened too frequently, and to avoid the components in the waterproof and dustproof cavity 101 being connected to the external environment for too long, which affects the IP protection level of the waterproof and dustproof cavity 101.

[0049] Secondly, the controller 103 determines whether the humidity outside the waterproof and dustproof cavity 101 is less than a second preset value, that is, determines whether the humidity outside the waterproof and dustproof cavity 101 is too high. Excessive humidity outside the waterproof and dustproof cavity 101 will cause the water vapor content in the air in the external environment of the waterproof and dustproof cavity 101 to be too high. At this time, opening the openable shell 121 will easily cause condensation in the waterproof and dustproof cavity 101. If there are components in the waterproof and dustproof cavity 101, the water vapor content in the air in the external environment of the waterproof and dustproof cavity 101 is too high, which will break through the circuit in the component and cause the circuit to fail. Therefore, the controller 103 determines whether the humidity outside the waterproof and dustproof cavity 101 is less than the second preset value, which is conducive to effectively avoiding condensation and circuit failure in the waterproof and dustproof cavity 101 when the openable shell 121 is opened.

[0050] Thirdly, the controller 103 determines whether the pressure of the external environment on the waterproof and dustproof cavity 101 is less than the third preset value, that is, determines whether the pressure of the external environment on the waterproof and dustproof cavity 101 is too large. If the pressure of the external environment on the waterproof and dustproof cavity 101 is too large, it can be determined that the external environment of the waterproof and dustproof cavity 101 is harsh. For example, the temperature in the external environment is also very high, resulting in increased air pressure, or there are other foreign objects in the external environment that fall onto the waterproof and dustproof cavity 101, resulting in a large force applied to the waterproof and dustproof cavity 101, or there is a fire or other unstable factors in the external environment. Therefore, when it is determined that the pressure of the external environment on the waterproof and dustproof cavity 101 is not less than the third preset value, it can be determined that it is not suitable to open the openable shell 121, and the components in the waterproof and dustproof cavity 101 are isolated from the harsh external environment with the help of the shell 111 to prevent the components in the waterproof and dustproof cavity 101 from being affected by the harsh external environment.

[0051] Fourthly, the controller 103 determines whether the height of the liquid outside the waterproof and dustproof cavity 101 is lower than the bottom surface of the waterproof and dustproof cavity 101, that is, it determines whether the liquid outside the waterproof and dustproof cavity 101 will invade the waterproof and dustproof cavity 101 if the openable shell 121 is controlled to be opened, thereby ensuring that after the openable shell 121 is opened, the components in the waterproof and dustproof cavity 101 will not be affected by the liquid outside the waterproof and dustproof cavity 101.

[0052] In summary, the controller 103 measures the environment of the waterproof and dustproof cavity 101 from at least four angles, namely, the temperature difference between the inside and outside of the waterproof and dustproof cavity 101, the humidity outside the waterproof and dustproof cavity 101, the pressure of the external environment on the waterproof and dustproof cavity 101, and the height of the liquid outside the waterproof and dustproof cavity 101, so as to control whether the openable shell 121 is opened, thereby facilitating heat dissipation of the waterproof and dustproof cavity while ensuring that the waterproof and dustproof cavity 101 has a higher IP protection level, such as IP protection level of IP65 or above.

[0053] It should be noted that any cavity with high IP protection level requirements can be regarded as a waterproof and dustproof cavity 101 designed in an embodiment of the present disclosure. The present disclosure does not limit the specific composition of the components in the waterproof and dustproof cavity 101. For example, any cavity of a high-power driver requiring a protection level of IP65 or above can apply the waterproof and dustproof cavity 101 designed in an embodiment of the present disclosure. Based on the different specific compositions of the components in the waterproof and dustproof cavity 101, the first preset value, the second preset value, and the third preset value designed in the controller 103 can be flexibly adjusted to better meet the heat dissipation requirements and IP protection level requirements of the relevant specific components.

[0054] The following takes the high-power driver as an inverter or a converter as an example to explain in detail the magnitudes of the first preset value, the second preset value and the third preset value.

[0055] In some examples, the first preset value may be 20°C~40°C. For example, the first preset value may be 21°C, 22°C, 23°C, 24°C, 25°C, 26°C, 27°C, 28°C, 29°C, 30°C, 31°C, 32°C, 33°C, 34°C, 35°C, 36°C, 37°C, 38°C or 39°C, etc.

[0056] In some examples, the second preset value may be 70% to 80%. For example, the second preset value may be 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78% or 79%.

[0057] In some examples, the third preset value may be 0.8 MPa to 1.2 MPa. For example, the third preset value may be 0.85 MPa, 0.9 MPa, 0.95 MPa, 1 MPa, 1.05 MPa, 1.1 MPa or 1.15 MPa.

[0058] It is worth noting that for different waterproof and dustproof cavities 101 with different protection levels, in order to achieve heat dissipation of the waterproof and dustproof cavity and ensure that the waterproof and dustproof cavity 101 has the corresponding IP protection level, the heat dissipation device 100 provided in an embodiment of the present disclosure can be adopted, and the control logic for determining whether the openable shell 121 is open in the controller 103 is similar.

[0059] In some embodiments, the controller 103 may also be configured to control the components in the waterproof and dustproof cavity 101 to be in a closed state if it is determined based on the third detection information test3 that the waterproof and dustproof cavity 101 does not meet the third preset condition, that is, it is determined that the external environment of the waterproof and dustproof cavity 101 is bad. In other words, when the controller 103 determines that the external environment of the waterproof and dustproof cavity 101 is bad, the components in the waterproof and dustproof cavity 101 will stop working, further avoiding damage to the components in the waterproof and dustproof cavity 101 during operation, and avoiding high temperature caused by the operation of the components in the waterproof and dustproof cavity 101.

[0060] In some embodiments, in conjunction with reference Figure 4 and Figure 5 , Figure 5 A schematic diagram of a partial cross-sectional structure of a heat dissipation device provided in an embodiment of the present disclosure; the heat dissipation device may also include: a heat dissipation unit 107, which is arranged in the waterproof and dustproof cavity 101; the controller 103 may also be configured to control the openable shell 121 to open based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4, and also start the heat dissipation unit 107 to put the heat dissipation unit 107 into a working state.

[0061] In this way, not only does the waterproof and dustproof cavity 101 communicate with the external environment to achieve internal and external air convection, but the heat dissipation unit 107 is also used to accelerate the speed of internal and external air convection, which is beneficial to further improve the heat dissipation efficiency of the components in the waterproof and dustproof cavity 101, so that the hot air in the waterproof and dustproof cavity 101 is quickly discharged to the outside of the outer shell 111, and it is also beneficial to effectively prevent the formation of condensation in the waterproof and dustproof cavity 101.

[0062] In some embodiments, reference Figure 6 , Figure 6 This is another partial cross-sectional structural schematic diagram of a heat dissipation device provided in an embodiment of the present disclosure. The waterproof and dustproof cavity 101 also has at least one heat generating unit 108 , and the heat dissipation unit 107 is located in the waterproof and dustproof cavity 101 near the heat generating unit 108 .

[0063] It is worth noting that the heat generation unit 108 in the waterproof and dustproof cavity 101 generates a large amount of heat, so the area with a higher temperature in the waterproof and dustproof cavity 101 is generally the area where the heat generation unit 108 is located, which is also the main source of the temperature increase in the waterproof and dustproof cavity 101. The heat accumulation in this area is serious, and rapid heat dissipation measures need to be taken. Based on this, the heat dissipation unit 107 is designed to be located in the area near the heat generation unit 108 in the waterproof and dustproof cavity 101, which is conducive to the targeted rapid heat dissipation of the heat generation unit 108 by means of the heat dissipation unit 107, effectively avoiding the heat accumulation phenomenon in the area near the heat generation unit 108, thereby facilitating the rapid reduction of the temperature in the waterproof and dustproof cavity 101.

[0064] In some examples, the heat generating unit 108 may be an insulated-gate bipolar transistor (IGBT) and / or an inductor.

[0065] In some embodiments, the heat dissipation unit 107 may include at least one pair of fans, where the pair of fans includes an intake fan (not shown in the figure) and an exhaust fan (not shown in the figure).

[0066] It is worth noting that while the intake fan is used to absorb the cold air in the external environment of the waterproof and dustproof cavity 101, the exhaust fan is used to discharge the internal hot air to the outside of the waterproof and dustproof cavity 101, which is beneficial to further increase the speed of air convection inside and outside the waterproof and dustproof cavity 101, so as to further improve the heat dissipation efficiency of the components in the waterproof and dustproof cavity 101.

[0067] It should be noted that the intake fan and the exhaust fan are arranged in pairs, that is, an intake fan and an exhaust fan form a pair of fans. In actual applications, the number of intake fans and exhaust fans can be flexibly selected according to the specific heat generation of components in the waterproof and dustproof cavity 101.

[0068] In some examples, the positions of the intake fan and the exhaust fan can be symmetrically arranged to promote convection of air inside and outside the waterproof and dustproof cavity 101 to further increase the speed of air convection inside and outside the waterproof and dustproof cavity 101.

[0069] In some embodiments, reference Figure 3 , Figure 5 or Figure 6 The entire outer surface area of ​​the shell 111 is a first area, the outer surface area of ​​the openable shell 121 is a second area, and the ratio of the second area to the first area is 20%-40%.

[0070] It is worth noting that the openable housing 121 serves as a component that connects the waterproof and dustproof cavity 101 to the external environment for air convection. If the ratio of the second area to the first area is less than 20%, for the entire shell 111, when the openable shell 121 is opened, the opening for air convection formed on the shell 111 is small, which is not conducive to quickly discharging the hot air in the waterproof and dustproof cavity 101 to the external environment, and is not conducive to improving the heat dissipation effect of the waterproof and dustproof cavity 101; if the ratio of the second area to the first area is greater than 40%, for the entire shell 111, when the openable shell 121 is opened, the opening for air convection formed on the shell 111 is large, and the area in the waterproof and dustproof cavity 101 directly exposed to the external environment is too large, which is not conducive to using the openable shell 121 to form a certain protective barrier, and there is a great safety risk. For example, when an emergency occurs when the openable shell 121 is opened, due to the large outer surface area of ​​the openable shell 121, it is not conducive to closing the openable shell 121 in time, that is, it is not conducive to timely making the waterproof and dustproof cavity 101 in a sealed state.

[0071] Therefore, when the ratio of the second area to the first area is designed to be 20%-40%, it is beneficial to make the size of the opening for air convection formed on the outer shell 111 appropriate, while improving the heat dissipation effect of the waterproof and dustproof cavity 101 and reducing the safety risk of the waterproof and dustproof cavity 101.

[0072] In some embodiments, reference Figure 7 , Figure 7 A side view of a dustproof and waterproof cavity in a heat dissipation device provided in an embodiment of the present disclosure, wherein the housing 111 has an opening 131 corresponding to the openable housing 121, and when the openable housing 121 is not opened, the openable housing 121 fits with the opening 131; the heat dissipation device 100 may further include: a sealing strip 109, which is disposed around the edge of the opening 131. In practical applications, the sealing strip may also be disposed around the edge of the openable housing.

[0073] It should be noted that Figure 7 The sealing strip 109 is not shown around the edge of the opening 131, and the openable housing 121 is drawn in a perspective manner. Figure 7 The diagram shows a side view of the dustproof and waterproof cavity when the openable housing 121 is opened.

[0074] It is worth noting that since the openable shell 121 of the outer shell 111 can have a relative movable relationship with the other parts of the outer shell 111, the openable shell 121 is fitted with the opening 131, that is, when the openable shell 121 is fitted with the other parts of the outer shell 111, there will be a very small gap between the openable shell 121 and the other parts of the outer shell 111, and a sealing strip 109 is arranged around the edge where the openable shell 121 and the other parts of the outer shell 111 are fitted. The sealing strip 109 is used to seal the gap between the openable shell 121 and the other parts of the outer shell 111, which is conducive to further improving the sealing of the waterproof and dustproof cavity 101, thereby further improving the IP protection level of the waterproof and dustproof cavity 101.

[0075] In some embodiments, reference Figure 3 , Figure 5 or Figure 6 The housing 111 may have at least two openable shells 121 spaced apart from each other; the preset environment includes a primary preset environment and a secondary preset environment; the controller 103 may also be configured to, if it is determined based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4 that the waterproof and dustproof cavity 101 is in the primary preset environment, control N openable shells 121 to open; if it is determined based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4 that the waterproof and dustproof cavity 101 is in the secondary preset environment, control more than N openable shells 121 to open, where N is a positive integer greater than or equal to 1.

[0076] in, Figure 3 , Figure 5 or Figure 6 2 and 3 show two openable housings 121 arranged opposite to each other along the second direction Y. In practical applications, the plurality of openable housings may be arranged along the second direction Y. Figure 2 The first direction X shown is arranged at intervals. One of the first direction X and the second direction Y is the length direction of the heat dissipation device, and the other is the width direction of the heat dissipation device.

[0077] It should be noted that, compared with the primary preset environment, the secondary preset environment may require opening the openable housing 121 for heat dissipation. Based on the setting logic, the difference between the primary preset environment and the secondary preset environment can be set to be a different judgment logic for at least one of the first detection information test1, the second detection information test2, the third detection information test3, and the fourth detection information test4. In actual applications, the difference between the primary preset environment and the secondary preset environment can be adjusted according to the specific application environment of the waterproof and dustproof cavity 101 to better meet the heat dissipation requirements and IP protection level requirements of the waterproof and dustproof cavity 101.

[0078] In some examples, the difference between the primary preset environment and the secondary preset environment may be a different judgment logic for the first detection information test1. For example, when judging that the second detection information test2, the third detection information test3, and the fourth detection information test4 all meet the corresponding preset conditions, if it is judged based on the first detection information test1 that the temperature difference between the inside and outside of the waterproof and dustproof cavity 101 is greater than or equal to 30°C, it is judged that the waterproof and dustproof cavity 101 is in the primary preset environment, and if it is judged based on the first detection information test1 that the temperature difference between the inside and outside of the waterproof and dustproof cavity 101 is greater than or equal to 40°C, it is judged that the waterproof and dustproof cavity 101 is in the secondary preset environment. Among them, since the temperature difference of the contents of the waterproof and dustproof cavity 101 in the secondary preset environment is greater, the controller 103 is designed to control more openable shells 121, which is beneficial to speed up the heat dissipation of the waterproof and dustproof cavity 101, thereby helping to reduce the duration that the openable shell 121 is in an open state, and avoid the duration that the waterproof and dustproof cavity 101 is connected to the external environment, thereby further improving the heat dissipation efficiency of the waterproof and dustproof cavity 101 while improving the IP protection level of the waterproof and dustproof cavity 101.

[0079] It should be noted that the above only uses the different judgment logic of the first detection information test1 to give an example of the difference between the first-level preset environment and the second-level preset environment. The different judgment logics of the second detection information test2, the third detection information test3 and the fourth detection information test4 can all cause the difference between the first-level preset environment and the second-level preset environment. The difference between the first-level preset environment and the second-level preset environment can be flexibly adjusted according to the actual application scenario, which will not be elaborated here.

[0080] In one example, the housing 111 may have two openable shells 121 spaced apart from each other, and the two openable shells 121 are respectively designed on opposite sides of the housing 111. For example, the two openable shells 121 may be respectively designed on the left and right sides or the front and back sides of the housing 111. In this way, when both openable shells 121 are opened, air convection is formed to further improve the heat dissipation effect of the waterproof and dustproof cavity 101.

[0081] In some embodiments, reference Figure 8 , Figure 8Another functional block diagram of the heat dissipation device provided in one embodiment of the present disclosure, the heat dissipation device 100 may also include: a smoke sensor 119, configured to: detect smoke in the external environment outside the waterproof and dustproof cavity 101, and feed back the detection result as the fifth detection information test5 to the controller 103; the controller 103 may also be configured to determine whether there is smoke outside the waterproof and dustproof cavity 101 based on the fifth detection information test5, wherein if it is determined that there is smoke outside the waterproof and dustproof cavity 101, the openable shell 121 is controlled to be closed; if it is determined that there is no smoke outside the waterproof and dustproof cavity 101, whether the waterproof and dustproof cavity 101 is in a preset environment is determined based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4.

[0082] It should be noted that if the controller 103 determines that there is smoke in the external environment of the waterproof and dustproof cavity 101 based on the fifth detection information test5, there may be a fire point or a harsh environment in the external environment. At this time, even if the controller 103 determines that the waterproof and dustproof cavity 101 is in a preset environment based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4, the openable shell 121 should not be opened. Therefore, designing the smoke sensor 119 to detect smoke and designing the controller 103 to determine whether there is smoke outside the waterproof and dustproof cavity 101 based on the fifth detection information test5 is conducive to further improving the IP protection level of the waterproof and dustproof cavity 101, avoiding the damage of the components in the waterproof and dustproof cavity 101 caused by the accidental opening of the openable shell 121. In other words, it is conducive to enabling the controller 103 to more accurately analyze whether the environment in which the waterproof and dustproof cavity 101 is located is suitable for opening the openable shell 121 to quickly dissipate heat.

[0083] In some embodiments, continue to refer to Figure 8 The heat dissipation device 100 may further include: a camera 129, which is configured to: image the external environment outside the waterproof and dustproof cavity 101, and feed back the imaging result as the sixth detection information test6 to the controller 103; the controller 103 may also be configured to determine whether there is a living body outside the waterproof and dustproof cavity 101 based on the sixth detection information test6, wherein if it is determined that there is a living body outside the waterproof and dustproof cavity 101, the openable shell 121 is controlled to be closed; if it is determined that there is no living body outside the waterproof and dustproof cavity 101, whether the waterproof and dustproof cavity 101 is in a preset environment is determined based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4.

[0084] It should be noted that if the controller 103 determines that there are living things in the external environment of the waterproof and dustproof cavity 101 based on the sixth detection information test6, there is a risk that living things in the external environment may enter the waterproof and dustproof cavity 101 and cause damage to the components in the waterproof and dustproof cavity 101. For example, the living things detected by the camera 129 may be small animals such as cockroaches or ants. Moving into the waterproof and dustproof cavity 101 may damage the components in the waterproof and dustproof cavity 101, such as disrupting the cables in the components. At this time, even if the controller 103 determines that the waterproof and dustproof cavity 101 is in the preset environment based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4, the openable housing 121 should not be opened. Therefore, designing the camera 129 to detect smoke and designing the controller 103 to determine whether there is a living body outside the waterproof and dustproof cavity 101 based on the sixth detection information test6 is conducive to further improving the IP protection level of the waterproof and dustproof cavity 101, and avoiding the openable shell 121 from being accidentally opened, which may cause damage to the components in the waterproof and dustproof cavity 101. In other words, it is conducive to enabling the controller 103 to more accurately analyze whether the environment in which the waterproof and dustproof cavity 101 is located is suitable for opening the openable shell 121 to quickly dissipate heat.

[0085] In summary, while designing the openable housing 121 on the outer shell 111 of the waterproof and dustproof cavity 101, the temperature sensor 102, the humidity sensor 104, the pressure sensor 105 and the liquid sensor 106 are designed to comprehensively detect the environment of the waterproof and dustproof cavity 101 from at least four aspects, and the controller 103 is designed to comprehensively consider the above-mentioned various detection information to determine whether the waterproof and dustproof cavity 101 is in a preset environment. Based on the cooperation of the temperature sensor 102, the humidity sensor 104, the pressure sensor 105 and the liquid sensor 106 and the controller 103, only when the waterproof and dustproof cavity 101 is in the preset environment, the controller 103 will control the openable housing 121 to open, so that the waterproof and dustproof cavity 101 can perform internal and external air convection with the help of the opened openable housing 121, so as to achieve rapid heat dissipation of the waterproof and dustproof cavity 101. Furthermore, when the waterproof and dustproof cavity 101 is not in a preset environment, the controller 103 controls the openable shell 121 to close, so that the waterproof and dustproof cavity 101 is in a sealed state to ensure that the IP protection level of the waterproof and dustproof cavity 101 is high.

[0086] Another embodiment of the present disclosure further provides a heat dissipation method for controlling the heat dissipation device provided in the above embodiment to dissipate heat. The heat dissipation method provided in another embodiment of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be noted that the parts that are the same or corresponding to the above embodiment will not be repeated here.

[0087] Combined with reference Figure 3 and Figure 4 The heat dissipation method includes: providing a temperature sensor 102, a humidity sensor 104, a pressure sensor 105, a liquid sensor 106 and a controller 103; detecting the temperature difference between the inside and outside of the waterproof and dustproof cavity 101 based on the temperature sensor 102, and feeding back the detection result as the first detection information test1 to the controller 103; detecting the humidity outside the waterproof and dustproof cavity 101 based on the humidity sensor 104, and feeding back the detection result as the second detection information test2 to the controller 103; detecting the pressure of the external environment on the waterproof and dustproof cavity 101 based on the pressure sensor 105, and feeding back the detection result as the third detection information test3 to the controller 103; taking the bottom surface of the waterproof and dustproof cavity 101 as a reference surface, detecting the height of the liquid outside the waterproof and dustproof cavity 101 based on the liquid sensor 106, and feeding back the detection result as the third detection information test3 to the controller 103; The result is fed back to the controller 103 as the fourth detection information test4; a waterproof and dustproof cavity 101 surrounded by an outer shell 111 is provided, and at least one openable shell 121 is designed on the outer shell 111; with the help of the controller 103, it is received and based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4, it is determined whether the waterproof and dustproof cavity 101 is in a preset environment; if it is determined that the waterproof and dustproof cavity 101 is in the preset environment, the openable shell 121 is controlled to open with the help of the controller 103, so as to control the waterproof and dustproof cavity 101 to perform internal and external air convection with the help of the opened openable shell 121; if it is determined that the waterproof and dustproof cavity 101 is not in the preset environment, the openable shell 121 is controlled to be closed with the help of the controller 103, so that the waterproof and dustproof cavity 101 is in a sealed state.

[0088] In some embodiments, the step in which the controller 103 determines whether the waterproof and dustproof cavity 101 is in a preset environment based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4 may include: determining whether the waterproof and dustproof cavity 101 meets the first preset condition based on the first detection information test1, determining whether the waterproof and dustproof cavity 101 meets the second preset condition based on the second detection information test2, determining whether the waterproof and dustproof cavity 101 meets the third preset condition based on the third detection information test3, and determining whether the waterproof and dustproof cavity 101 meets the fourth preset condition based on the fourth detection information test4; if it is determined that the waterproof and dustproof cavity 101 satisfies the first preset condition, the third preset condition, the fourth ... If the second preset condition, the third preset condition and the fourth preset condition are met, it is judged that the waterproof and dustproof cavity 101 is in the preset environment; if it is judged that the waterproof and dustproof cavity 101 does not meet at least one of the first preset condition, the second preset condition, the third preset condition and the fourth preset condition, it is judged that the waterproof and dustproof cavity 101 is not in the preset environment; wherein, the first preset condition is that the temperature difference between the inside of the waterproof and dustproof cavity 101 and the outside of the waterproof and dustproof cavity 101 is greater than or equal to the first preset value, the second preset condition is that the humidity outside the waterproof and dustproof cavity 101 is less than the second preset value, the third preset condition is that the pressure of the external environment on the waterproof and dustproof cavity 101 is less than the third preset value, and the fourth preset condition is that the height of the liquid outside the waterproof and dustproof cavity 101 is lower than the bottom surface of the waterproof and dustproof cavity 101.

[0089] In some embodiments, reference Figure 8 The heat dissipation method also includes: providing a smoke sensor 119, detecting smoke in the external environment outside the waterproof and dustproof cavity 101 based on the smoke sensor 119, and feeding back the detection result to the controller 103 as the fifth detection information test5; before receiving with the help of the controller 103 and judging whether the waterproof and dustproof cavity 101 is in a preset environment based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4, receiving with the help of the controller 103 and judging whether there is smoke in the external environment outside the waterproof and dustproof cavity 101 based on the fifth detection information test5.

[0090] In some embodiments, reference Figure 8The heat dissipation method also includes: providing a camera 129, imaging the external environment outside the waterproof and dustproof cavity 101 based on the camera 129, and feeding back the imaging result to the controller 103 as the sixth detection information test6; before receiving with the help of the controller 103 and judging whether the waterproof and dustproof cavity 101 is in a preset environment based on the first detection information test1, the second detection information test2, the third detection information test3 and the fourth detection information test4, receiving with the help of the controller 103 and judging whether there is a living body in the external environment outside the waterproof and dustproof cavity 101 based on the fifth detection information test5.

[0091] Another embodiment of the present disclosure further provides an energy storage system, including the heat dissipation device provided in the above embodiment for heat dissipation. The energy storage system provided in another embodiment of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be noted that the parts that are the same or corresponding to the above embodiment will not be repeated here.

[0092] refer to Figure 1 or Figure 2 The energy storage system includes the heat dissipation device 100 provided in the above embodiment. Based on the heat dissipation device 100, an openable housing 121 is designed on the housing 111, and with the cooperation of the temperature sensor 102, the humidity sensor 104, the pressure sensor 105, the liquid sensor 106 and the controller 103, the heat dissipation efficiency of the waterproof and dustproof cavity 101 is improved, and the IP protection level of the waterproof and dustproof cavity 101 is improved, which is conducive to improving the service life of the energy storage system.

[0093] Those skilled in the art can understand that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the embodiments of the present disclosure. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present disclosure, so the protection scope of the embodiments of the present disclosure shall be based on the scope defined in the claims.

Claims

1. A heat dissipation device for a high-power driver, characterized in that: include: A waterproof and dustproof cavity surrounded by a shell, the shell having at least one openable shell, the waterproof and dustproof cavity being used to place the high-power driver, the high-power driver including an inverter or a converter; a temperature sensor configured to detect a temperature difference between the inside of the waterproof and dustproof cavity and the outside of the waterproof and dustproof cavity, and feed back the detection result as first detection information to the controller; a humidity sensor configured to detect the humidity outside the waterproof and dustproof cavity and feed back the detection result as second detection information to the controller; a pressure sensor configured to detect the pressure of the external environment on the waterproof and dustproof cavity, and feed back the detection result as third detection information to the controller; a liquid sensor configured to detect the height of the liquid outside the waterproof and dustproof cavity with the bottom surface of the waterproof and dustproof cavity as a reference surface, and feed back the detection result as fourth detection information to the controller; The controller is configured to receive and determine whether the waterproof and dustproof cavity is in a preset environment based on the first detection information, the second detection information, the third detection information, and the fourth detection information; Wherein, if it is determined that the waterproof and dustproof cavity is in the preset environment, the controller controls the openable shell to open, so as to control the waterproof and dustproof cavity to perform internal and external air convection with the help of the opened openable shell; if it is determined that the waterproof and dustproof cavity is not in the preset environment, the controller controls the openable shell to close, so that the waterproof and dustproof cavity is in a sealed state; The controller determines whether the waterproof and dustproof cavity is in the preset environment based on the first detection information, the second detection information, the third detection information, and the fourth detection information, including: Determine whether the waterproof and dustproof cavity meets a first preset condition based on the first detection information, determine whether the waterproof and dustproof cavity meets a second preset condition based on the second detection information, determine whether the waterproof and dustproof cavity meets a third preset condition based on the third detection information, and determine whether the waterproof and dustproof cavity meets a fourth preset condition based on the fourth detection information; If it is determined that the waterproof and dustproof cavity satisfies the first preset condition, the second preset condition, the third preset condition and the fourth preset condition at the same time, it is determined that the waterproof and dustproof cavity is in the preset environment; If it is determined that the waterproof and dustproof cavity does not meet at least one of the first preset condition, the second preset condition, the third preset condition and the fourth preset condition, it is determined that the waterproof and dustproof cavity is not in the preset environment; Among them, the first preset condition is that the temperature difference between the inside and outside of the waterproof and dustproof cavity is greater than or equal to a first preset value, the second preset condition is that the humidity outside the waterproof and dustproof cavity is less than a second preset value, the third preset condition is that the pressure of the external environment on the waterproof and dustproof cavity is less than a third preset value, and the fourth preset condition is that the height of the liquid outside the waterproof and dustproof cavity is lower than the bottom surface of the waterproof and dustproof cavity.

2. The heat dissipation device according to claim 1, characterized in that: The first preset value is 20°C~40°C; and / or, the second preset value is 70%~80%; and / or, the third preset value is 0.8MPa~1.2MPa.

3. The heat dissipation device according to claim 1 or 2, characterized in that: Also includes: A heat dissipation unit is disposed in the waterproof and dustproof cavity; The controller is further configured to, if the openable housing is controlled to open based on the first detection information, the second detection information, the third detection information and the fourth detection information, also start the heat dissipation unit to put the heat dissipation unit into a working state.

4. The heat dissipation device according to claim 3, characterized in that: The waterproof and dustproof cavity further comprises at least one heat generating unit, and the heat dissipation unit is located in a region close to the heat generating unit in the waterproof and dustproof cavity.

5. The heat dissipation device according to claim 3, characterized in that: The heat dissipation unit includes at least one pair of fans, and the pair of fans includes an intake fan and an exhaust fan.

6. The heat dissipation device according to claim 1 or 2, characterized in that: The outer surface area of ​​the entire shell is a first area, the outer surface area of ​​the openable shell is a second area, and the ratio of the second area to the first area is 20%-40%.

7. The heat dissipation device according to claim 1 or 2, characterized in that: The housing has at least two openable housings spaced apart from each other; the preset environment includes a primary preset environment and a secondary preset environment; The controller is also configured to, if it is judged that the waterproof and dustproof cavity is in the first-level preset environment based on the first detection information, the second detection information, the third detection information and the fourth detection information, control N of the openable shells to open; if it is judged that the waterproof and dustproof cavity is in the second-level preset environment based on the first detection information, the second detection information, the third detection information and the fourth detection information, control more than N of the openable shells to open, where N is a positive integer greater than or equal to 1.

8. The heat dissipation device according to claim 1 or 2, characterized in that: Also includes: Smoke a sensor configured to: detect smoke in the external environment outside the waterproof and dustproof cavity, and feed back the detection result as fifth detection information to the controller; The controller is also configured to determine whether there is smoke outside the waterproof and dustproof cavity based on the fifth detection information, wherein if it is determined that there is smoke outside the waterproof and dustproof cavity, the openable shell is controlled to be closed; if it is determined that there is no smoke outside the waterproof and dustproof cavity, whether the waterproof and dustproof cavity is in the preset environment is determined based on the first detection information, the second detection information, the third detection information and the fourth detection information.

9. The heat dissipation device according to claim 1 or 2, characterized in that: Also includes: A camera is configured to: image the external environment outside the waterproof and dustproof cavity, and feed back the imaging result as sixth detection information to the controller; The controller is also configured to determine whether there is a living body outside the waterproof and dustproof cavity based on the sixth detection information, wherein if it is determined that there is a living body outside the waterproof and dustproof cavity, the openable shell is controlled to be closed; if it is determined that there is no living body outside the waterproof and dustproof cavity, whether the waterproof and dustproof cavity is in the preset environment is determined based on the first detection information, the second detection information, the third detection information and the fourth detection information.

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