Capacitor, electric cabinet and electric equipment
By introducing a first connector into the capacitor to transfer heat from the core, and combined with the use of the filler, the problem of poor heat dissipation effect of the core in the capacitor is solved, which significantly reduces the temperature of the core, extends the life of the capacitor and improves its performance.
Patent Information
- Application Number
- CN202411398077.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-04-08
AI Technical Summary
The heat dissipation effect of the core in existing capacitors is poor, resulting in excessive temperature of the core, affecting its performance and life.
A capacitor is designed including a housing, a core, a first connector and a filler. The first connecting member transfers heat from the core to the outside of the housing and contacts the box of the electrical control box to improve the heat dissipation effect. The filler is filled in the mounting groove, covering the surface of the core and part of the surface of the first connector for sealing and protection.
Through the design of the first connector, the heat dissipation effect of the core is effectively improved, the temperature of the core is reduced, the life of the capacitor is extended, and its performance is improved. At the same time, the use of fillers provides additional sealing and protection against external erosion and dust.
Smart Images
Figure CN119786252A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of capacitors, and in particular to a capacitor, an electric control box and electrical equipment. Background Art
[0002] Capacitors are components that store electrical charge and energy.
[0003] In the prior art, the capacitor includes a shell, a copper bar and a core, and the copper bar and the core are welded. The shell has a receiving cavity, and the copper bar and the core are located in the receiving cavity, and the receiving cavity is completely filled with glue to seal the receiving cavity.
[0004] However, the heat dissipation effect of the core in the above capacitor is poor. Summary of the invention
[0005] The present application provides a capacitor, an electric control box and an electric device, which are used to solve the problem of poor heat dissipation effect of the core of the capacitor in the prior art.
[0006] In a first aspect, the present application provides a capacitor for use in an electric control box, the capacitor comprising: a housing, a core, a first connecting member and a filling member;
[0007] The housing has a mounting groove and a first opening communicating with the mounting groove, the core is located in the mounting groove, the first connecting member is electrically connected to the core through the first opening, and transfers the heat of the core to the outside of the housing, and the first connecting member is used to connect between the housing and the box body of the electric control box;
[0008] The filling member is filled in the installation groove and covers the surface of the core and a part of the surface of the first connecting member.
[0009] In some embodiments, the housing further has a second opening communicating with the mounting groove, and the filling piece is filled into the mounting groove through the second opening.
[0010] In some embodiments, the first connecting member has an insulating layer thereon, and the insulating layer is used to contact the box body.
[0011] In some embodiments, the shell has at least two first connection parts, and the first connection parts are used to connect with the box body.
[0012] In some embodiments, the shell includes a support frame and at least one second connecting member arranged on a side of the support frame, the mounting groove is located on the support frame, and the first connecting portion is located on the second connecting member.
[0013] In a second aspect, the present application provides an electric control box, comprising: a box body and any one of the above-mentioned capacitors arranged on the box body.
[0014] In some embodiments, a heat sink is disposed on the box, and the heat sink corresponds to the capacitor.
[0015] In some embodiments, the heat sink is in contact with the first connector of the capacitor.
[0016] In some embodiments, the heat dissipation element includes at least one of a heat dissipation channel and a cooling element.
[0017] In a third aspect, the present application provides an electrical device, including a device body, and any capacitor in the first aspect arranged on the device body, or any electric control box in the second aspect arranged on the device body.
[0018] The present application proposes a capacitor, an electric control box and an electric device, wherein the capacitor comprises: a shell, a core, a first connecting member and a filling member. The shell has a mounting groove and a first opening connected to the mounting groove, the core is located in the mounting groove, the first connecting member is electrically connected to the core through the first opening, and transfers the heat of the core to the outside of the shell, and the first connecting member is used to connect between the shell and the box body of the electric control box. As a result, the heat of the core can be transferred to the outside of the shell and the box body of the electric control box through the first connecting member to dissipate the heat of the core, thereby improving the heat dissipation effect of the core, effectively reducing the temperature of the core, and avoiding the core temperature being too high to affect the performance of the core. At the same time, by arranging the first connecting member outside the shell to improve the thermal conductivity between the inside and outside of the shell, it is convenient to transfer the heat inside the shell to the outside of the shell, thereby improving the life and performance of the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0020] Figure 1 The structure of the capacitor provided in the embodiment of the present application is shown in FIG. Figure 1 ;
[0021] Figure 2 for Figure 1 A structural diagram from another perspective;
[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the middle shell;
[0023] Figure 4 for Figure 1 A schematic structural diagram of the first connecting member;
[0024] Figure 5 for Figure 1 Schematic diagram of the structure of the core;
[0025] Figure 6 The structure of the capacitor provided in the embodiment of the present application is shown in FIG. Figure 2 ;
[0026] Figure 7 The structure of the capacitor provided in the embodiment of the present application is shown in FIG. Figure 3 ;
[0027] Figure 8 This is a schematic diagram of the structure of a portion of the electric control box provided in an embodiment of the present application.
[0028] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.
[0029] Description of reference numerals:
[0030] 100-capacitor;
[0031] 110-housing;
[0032] 111-support frame;
[0033] 112-installation slot;
[0034] 113-first opening;
[0035] 114 - second opening;
[0036] 115- second connecting member;
[0037] 116- first connecting portion;
[0038] 120-core;
[0039] 130- first connecting member;
[0040] 131-busbar;
[0041] 132-terminal;
[0042] 133-insulating layer;
[0043] 140-filler;
[0044] 200-cabinet;
[0045] 210-Heat dissipation channel. DETAILED DESCRIPTION
[0046] The exemplary embodiments will be described in detail below, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.
[0047] In the prior art, capacitors include film capacitors. Film capacitors include a shell, a copper bar and a core, and the copper bar and the core are welded. The shell has a closed accommodating cavity, the copper bar and the core are located in the accommodating cavity, and the accommodating cavity is completely filled with glue. However, when the heat of the core in the above-mentioned capacitor is high, the heat of the core needs to be transferred to the outside of the shell through glue and the shell in turn. The thermal conductivity of the glue is poor and the thermal resistance is high, which makes it difficult for the heat of the core to be transferred to the outside of the shell, and the heat dissipation effect is poor, which affects the life and performance of the core. The copper bar is located in the closed accommodating cavity and partially extends out to be electrically connected to the power module. When the operating temperature of the power module increases, the heat of the power module will be transferred to the copper bar, which will further cause the temperature of the capacitor to increase. If the heat cannot be dissipated in time, it will affect the life and performance of the capacitor.
[0048] Based on this, the embodiment of the present application provides a capacitor including: a housing, a core, a first connector and a filling member. The housing has a mounting groove and a first opening connected to the mounting groove, the core is located in the mounting groove, the first connector is electrically connected to the core through the first opening, and transfers the heat of the core to the outside of the housing, and the first connector is used to connect between the housing and the box of the electric control box. As a result, the heat of the core can be transferred to the outside of the housing and the box of the electric control box through the first connector to dissipate the heat of the core, improve the heat dissipation effect of the core, effectively reduce the temperature of the core, and thus avoid the core temperature being too high to affect the performance of the core. At the same time, by arranging the first connector outside the housing to improve the thermal conductivity between the inside and outside of the housing, it is convenient to transfer the heat inside the housing to the outside of the housing, thereby improving the life and performance of the capacitor. The filling member is filled in the mounting groove and covers the surface of the core and part of the surface of the first connector, thereby, the peripheral side of the core can be sealed by the filling member, and the core is protected at the same time.
[0049] The embodiments of the present application are described below with reference to the accompanying drawings.
[0050] Reference Figures 1 to 8 The capacitor provided in the embodiment of the present application is used in an electric control box, and the capacitor 100 includes: a shell 110, a core 120, a first connecting piece 130 and a filling piece 140.
[0051] The housing 110 has a mounting groove 112 and a first opening 113 communicating with the mounting groove 112. The core 120 is located in the mounting groove 112. The first connector 130 is electrically connected to the core 120 through the first opening 113 and transfers the heat of the core 120 to the outside of the housing 110. The first connector 130 is used to connect between the housing 110 and the box body 200 of the electric control box. The filler 140 is filled in the mounting groove 112 and covers the surface of the core 120 and part of the surface of the first connector 130.
[0052] The capacitor 100 may be a film capacitor. The core 120 is formed by connecting a plurality of capacitor elements in parallel and in series.
[0053] Reference Figure 4 The first connector 130 may be a copper bar, which is formed by pressing a positive copper bar and a negative copper bar. The first connector 130 includes a busbar 131 and at least one terminal 132 electrically connected to the busbar 131. The busbar 131 is electrically connected to the core 120, and the terminal 132 is electrically connected to the power module. The busbar 131 is connected between the housing 110 and the box body 200 of the electric control box, and the terminal 132 is located on the peripheral side of the housing 110. The number of the terminals 132 may be multiple, and each terminal 132 is sequentially arranged around the peripheral side of the housing 110.
[0054] By arranging the filler 140 in the housing 110, the core 120 is protected to prevent the core 120 from being corroded and damaged by the outside, and the peripheral side of the core 120 is sealed to prevent dust or water from contacting the core 120 and affecting the performance of the core 120. At the same time, the position of the core 120 in the housing 110 can be fixed by the filler 140 to prevent the core 120 from being displaced. In addition, the filler 140 has good insulation performance and temperature resistance to avoid problems such as short circuits in the core 120, and to prevent the temperature of the filler 140 from being too high to affect the performance of the core 120.
[0055] By arranging the core 120 in the housing 110 and arranging the filler 140 in the housing 110, the core 120 is protected by the housing 110 and the filler to prevent the core 120 from being corroded and damaged by the outside, and the peripheral side of the core 120 is sealed to prevent dust or water from contacting the core 120 and affecting the performance of the core 120. When there is vibration outside the housing 110, the impact of the vibration on the core 120 is reduced. At the same time, the position of the core 120 in the housing 110 can be fixed by the filler 140 to prevent the core 120 from being displaced. The filler 140 also covers part of the surface of the first connecting member 130, so that the first connecting member 130 is fixed by the filler 140.
[0056] In addition, the filler 140 has good insulation performance and temperature resistance to avoid problems such as short circuit of the core 120, and prevent the temperature of the filler 140 from being too high to affect the performance of the core 120. By providing the first opening 113 on the housing 110, the first connector 130 located outside the housing 110 can be electrically connected to the core 120 located inside the housing 110 through the first opening 113, thereby facilitating the electrical connection between the first connector 130 and the core 120.
[0057] In a specific implementation, the core 120 is in direct contact with the first connector 130, so that the heat of the core 120 can be transferred to the first connector 130. The first connector 130 is located outside the housing 110, and the first connector 130 is in contact with the housing 200 of the electric control box, so that the heat of the first connector 130 can be transferred to the housing 200 of the electric control box. As a result, the heat of the core 120 can be transferred to the housing 200 of the electric control box, which improves the heat dissipation effect of the core 120 and reduces the temperature of the core 120. At the same time, by arranging the first connector 130 outside the housing 110, the heat conductivity between the inside and outside of the housing 110 is improved, so that the heat inside the housing 110 is transferred to the outside of the housing 110, thereby improving the life and performance of the capacitor 100.
[0058] In the capacitor 100 provided in the embodiment of the present application, the core 120 is located in the installation groove 112, the first connector 130 is electrically connected to the core 120 through the first opening 113, and the heat of the core 120 is transferred to the outside of the housing 110, and the first connector 130 is used to connect between the housing 110 and the box 200 of the electric control box. As a result, the heat of the core 120 can be transferred to the outside of the housing 110 and the box 200 of the electric control box through the first connector 130, so as to dissipate the heat of the core 120, improve the heat dissipation effect of the core 120, effectively reduce the temperature of the core 120, and thus avoid the temperature of the core 120 being too high to affect the performance of the core 120. At the same time, by arranging the first connector 130 outside the housing 110, the thermal conductivity between the inside and outside of the housing 110 is improved, so as to facilitate the transfer of heat from the housing 110 to the outside of the housing 110, thereby improving the life and performance of the capacitor 100. The filling member 140 is filled in the installation groove 112 and covers the surface of the core 120 and a part of the surface of the first connecting member 130 , so that the peripheral side of the core 120 can be sealed by the filling member 140 and the core 120 can be protected at the same time.
[0059] Reference Figure 1 and Figure 3 In some embodiments, the housing 110 further has a second opening 114 communicating with the mounting groove 112 , and the filling piece 140 is filled in the mounting groove 112 through the second opening 114 .
[0060] The second opening 114 is provided to facilitate the filling member 140 to be filled in the housing 110 . In addition, the heat in the housing 110 can be dissipated to the outside of the housing 110 through the second opening 114 , further improving the heat dissipation effect of the capacitor 100 .
[0061] In some examples, the filler 140 fills the second opening 114 .
[0062] In a specific implementation, the first opening 113 is opposite to the second opening 114. In this way, it is convenient to cover the filling member 140 on the surface of the core 120 and the first connecting member 130.
[0063] In some embodiments, the filling member 140 is a potting compound. By potting the potting compound in the mounting groove 112, the potting compound can completely seal the outer surface of the core 120, thereby making the sealing performance of the core 120 better.
[0064] Reference Figure 2 In some embodiments, the first connecting member 130 has an insulating layer 133 , and the insulating layer 133 is used to contact the box body 200 of the electric control box.
[0065] The insulating layer 133 may be insulating paper or an insulating film covering the first connector 130 .
[0066] In this way, the insulation between the first connecting member 130 and the box body 200 is better.
[0067] Exemplarily, the insulating layer 133 is connected to the busbar 131 , and the insulating layer 133 is located between the busbar 131 and the box body 200 of the electric control box.
[0068] Reference Figure 1 and Figure 3 In some embodiments, the housing 110 has at least two first connection portions 116 , and the first connection portions 116 are used to connect to the box body 200 of the electric control box.
[0069] The first connection portion 116 and the box body 200 of the electric control box may be connected in a threaded connection, adhesive connection, clamping connection or other connection methods.
[0070] Specifically, the shell 110 is connected to the box 200 through the first connecting portion 116, so that the shell 110 is connected to the box 200, and part of the first connecting member 130 is located between the shell 110 and the box 200, and then the shell 110 can be connected to the box 200 to fix the first connecting member 130.
[0071] Reference Figure 1 , Figure 3 , Figure 6 and Figure 7In a specific implementation, the housing 110 includes a support frame 111 and at least one second connecting member 115 disposed on the support frame 111 , the mounting groove 112 is located on the support frame 111 , and the first connecting portion 116 is located on the second connecting member 115 .
[0072] The second connecting member 115 is provided on the support frame 111 to ensure the connection strength between the housing 110 and the box body 200 of the electric control box. The second connecting member 115 is provided on the outer surface of the support frame 111 to improve the strength of the support frame 111.
[0073] It is understandable that the support frame 111 may be in a rectangular sleeve shape, and the openings at both ends of the support frame 111 respectively form a first opening 113 and a second opening 114. Of course, the support frame 111 may also be in other shapes, which is not limited in this embodiment.
[0074] The number of the second connecting members 115 can be multiple, and each second connecting member 115 is arranged at intervals on the outer surface of the support frame 111. In some examples, the second connecting member 115 has a support plate, and the support plate connects the second connecting member 115 and the outer surface of the support frame 111 to further improve the strength of the housing 110. It can be understood that the specific structure of the second connecting member 115 can also be adaptively set according to actual needs, and this embodiment is not limited here.
[0075] Exemplarily, the housing 110 further includes a third connection member, the first connection portion 116 is a connection hole, and the third connection member is connected to the box body 200 of the electric control box via the connection hole. For example, the third connection member is a screw, and the first connection portion 116 is a threaded hole.
[0076] In some examples, the support frame 111 and the second connecting member 115 are integrally formed.
[0077] Reference Figure 8 On the basis of the above-mentioned embodiments, an embodiment of the present application provides an electric control box, comprising: a box body 200 and a capacitor 100 arranged on the box body 200 .
[0078] The specific structure of the capacitor 100 has been described in detail in the above embodiments and will not be repeated here.
[0079] Exemplarily, the capacitor 100 is located in the box 200 and connected to the inner wall of the box 200. The first connector 130 of the capacitor 100 is connected to the box 200. After the first connector 130 transfers heat to the box 200, the heat can be further dissipated through the box 200, thereby improving the heat dissipation effect of the capacitor 100.
[0080] The electric control box provided in the embodiment of the present application, the capacitor 100 includes: a housing 110, a core 120, a first connecting member 130 and a filling member 140. The housing 110 has a mounting groove 112 and a first opening 113 connected to the mounting groove 112. The core 120 is located in the mounting groove 112. The first connecting member 130 is electrically connected to the core 120 through the first opening 113, and transfers the heat of the core 120 to the outside of the housing 110. The first connecting member 130 is used to be connected between the housing 110 and the box 200. As a result, the heat of the core 120 can be transferred to the outside of the housing 110 and the box 200 through the first connecting member 130 to dissipate the heat of the core 120, thereby improving the heat dissipation effect of the core 120, effectively reducing the temperature of the core 120, and thus preventing the temperature of the core 120 from being too high and affecting the performance of the core 120. At the same time, by arranging the first connecting member 130 outside the shell 110 , the thermal conductivity between the inside and outside of the shell 110 is improved, thereby facilitating the heat transfer from the shell 110 to the outside of the shell 110 , thereby improving the life and performance of the capacitor 100 .
[0081] In some embodiments, a heat sink is disposed on the box body 200 , and the heat sink corresponds to the capacitor 100 .
[0082] Among them, the heat sink corresponds to the capacitor 100, which refers to the part of the box 200 on which the heat sink is connected to the capacitor 100. After the heat sink dissipates the heat on the part of the box 200 connected to the capacitor 100, the capacitor 100 can directly exchange heat with the part of the box 200, thereby improving the heat exchange efficiency between the capacitor 100 and the heat sink.
[0083] In this way, the heat dissipation element can be used to dissipate heat from the housing 200 , thereby lowering the temperature of the housing 200 , promoting heat exchange between the housing 200 and the capacitor 100 , and thus promoting heat dissipation of the capacitor 100 .
[0084] In a specific implementation, the heat sink contacts the first connector 130 of the capacitor 100 , thereby further improving the heat dissipation effect of the heat sink on the first connector 130 and improving the heat dissipation effect on the capacitor 100 .
[0085] The heat sink is in contact with the first connector 130 so that the heat sink can directly dissipate heat for the first connector 130 without the first connector 130 first transferring heat to the box body 200 and then dissipating heat for the box body 200 through the heat sink, thereby improving the heat dissipation efficiency of the heat sink for the capacitor 100.
[0086] In some embodiments, the heat dissipation element includes at least one of a heat dissipation channel 210 and a cooling element.
[0087] The cooling channel 210 has flowing coolant, which exchanges heat with the box 200 and takes away the heat of the box 200, thereby reducing the temperature of the box 200 and promoting the heat exchange between the first connector 130 and the box 200. It is understood that the coolant can be water or a coolant.
[0088] Exemplarily, the cooling element may be a liquid cooling element or an air cooling element.
[0089] In the present application, the heat sink includes a heat dissipation channel 210 and a cooling element, so that the heat sink has a better heat dissipation effect.
[0090] In a specific implementation, the box body 200 has at least two second connection parts 220 , and the second connection parts 220 are connected to the housing 110 of the capacitor 100 .
[0091] It is understandable that the second connection portion 220 and the housing 110 may be connected in a threaded connection, adhesive connection, clamping connection or other connection methods.
[0092] Specifically, the third connection member is connected to the second connection portion 220 via the first connection portion 116. Exemplarily, the second connection portion 220 is a threaded hole.
[0093] An electric device comprises a device body and a capacitor arranged on the device body, or an electric control box arranged on the device body.
[0094] Exemplarily, the electric device includes a vehicle.
[0095] In the electrical equipment provided in the embodiment of the present application, the heat of the core 120 of the capacitor 100 can be transferred to the outside of the housing 110 and the box 200 of the electric control box through the first connector 130 to dissipate the heat of the core 120, thereby improving the heat dissipation effect of the core 120, effectively reducing the temperature of the core 120, and thus preventing the temperature of the core 120 from being too high and affecting the performance of the core 120. At the same time, by arranging the first connector 130 outside the housing 110 to improve the thermal conductivity between the inside and outside of the housing 110, it is convenient to transfer the heat inside the housing 110 to the outside of the housing 110, thereby improving the life and performance of the capacitor 100.
[0096] The terms "first", "second", etc. in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present application described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0097] In the embodiments of the present application, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have specific orientations, or to be constructed and operated in specific orientations. Moreover, in addition to being used to indicate orientations or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present application can be understood according to the specific circumstances.
[0098] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0099] Unless otherwise stated, the term "plurality" means two or more.
[0100] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the scope of the present application is limited only by the appended claims.
Claims
1. A capacitor for an electric control box, characterized in that: The capacitor comprises: a housing (110), a core (120), a first connecting member (130) and a filling member (140); The housing (110) is provided with a mounting groove (112) and a first opening (113) communicating with the mounting groove (112); the core (120) is located in the mounting groove (112); the first connecting member (130) is electrically connected to the core (120) via the first opening (113) and transfers heat of the core (120) to the outside of the housing (110); the first connecting member (130) is used to be connected between the housing (110) and a box body (200) of the electric control box; The filling member (140) is filled in the installation groove (112) and covers the surface of the core (120) and part of the surface of the first connecting member (130).
2. The capacitor according to claim 1, characterized in that The housing (110) also has a second opening (114) communicating with the installation groove (112), and the filling piece (140) is filled into the installation groove (112) through the second opening (114).
3. The capacitor according to claim 1, characterized in that The first connecting member (130) has an insulating layer (133), and the insulating layer (133) is used to contact the box body (200).
4. The capacitor according to any one of claims 1 to 3, characterized in that: The shell (110) has at least two first connection parts (116), and the first connection parts (116) are used to be connected to the box (200).
5. The capacitor according to claim 4, characterized in that The shell (110) comprises a support frame (111) and at least one second connecting member (115) arranged on a side of the support frame, the mounting groove (112) is located on the support frame (111), and the first connecting portion (116) is located on the second connecting member (115).
6. An electric control box, characterized in that: include: A box (200) and a capacitor (100) according to any one of claims 1 to 5 arranged on the box (200).
7. The electric control box according to claim 6, characterized in that: The box body (200) is provided with a heat sink, and the heat sink corresponds to the capacitor (100).
8. The electric control box according to claim 7, characterized in that: The heat sink is in contact with the first connecting member (130) of the capacitor (100).
9. The electric control box according to claim 7, characterized in that: The heat dissipation element comprises at least one of a heat dissipation water channel (210) and a cooling element.
10. An electrical device, characterized in that: It comprises a device body, and a capacitor as described in any one of claims 1 to 5 arranged on the device body, or an electric control box as described in any one of claims 6 to 9 arranged on the device body.