Electric control component and air conditioner with same

Abstract

The electric control component comprises a circuit board and an electric control box, the electric control box accommodates the circuit board and comprises an outer shell, an inner shell and a heat conduction piece, the outer shell covers the inner shell, the inner shell is provided with a through opening area, the heat conduction piece is arranged in the inner shell and embedded in the opening area, and the heat conduction piece is arranged in the inner shell and embedded in the opening area. And the heat in the electric control box is transferred to the shell. According to the electric control component provided by the embodiment of the utility model, the heat in the electric control box is transferred to the outer shell by embedding the heat conduction piece on the inner shell, so that the heat transfer efficiency of the electric control box is improved, and the heat dissipation performance of the electric control component is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an electric control component and an air conditioner having the same. Background Art

[0002] Some electric control boxes in the related art have difficulty in dissipating heat from the internal circuit boards, especially when the heating module integrates many functions, the heat dissipation difficulty is even greater. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an electric control component to improve the heat dissipation performance of the electric control component.

[0004] The utility model also provides an air conditioner with the above-mentioned electric control component.

[0005] According to the first aspect of the present invention, the electric control component includes: a circuit board; an electric control box, which accommodates the circuit board and includes an outer shell, an inner shell and a heat conductor, the outer shell covers the inner shell, and the inner shell has an opening area therethrough, and the heat conductor is arranged on the inner shell and embedded in the opening area to transfer heat in the electric control box to the outer shell.

[0006] According to the electric control component of the embodiment of the present invention, the heat in the electric control box is transferred to the outer shell by embedding the heat conducting member on the inner shell, thereby improving the heat transfer efficiency of the electric control box and thus improving the heat dissipation performance of the electric control component.

[0007] In some embodiments, the circuit board includes a substrate and a first heating device disposed on the substrate, and the heat conductor includes a first heat conductor, which is disposed opposite to the first heating device along a thickness direction of the substrate.

[0008] In some embodiments, the inner shell includes a first inner shell, the first inner shell includes a first shell wall, the outer shell includes a first outer shell covering the first inner shell, the first heat conductor is arranged on the first shell wall, and the first heating device is arranged on the side of the substrate facing the first shell wall.

[0009] In some embodiments, the first heat conducting member is in the shape of a sheet, and both side surfaces of the thickness thereof are flush with both side surfaces of the thickness of the first shell wall.

[0010] In some embodiments, the first heat conducting member includes an extension section protruding from the first shell wall toward the first heat generating component.

[0011] In some embodiments, the end of the extension section away from the first shell wall is in contact with the first heating element through a first insulating heat-conducting medium for heat transfer.

[0012] In some embodiments, the first shell wall is a stepped wall and includes a first step portion and a second step portion, the distance between the first step portion and the substrate is greater than the distance between the second step portion and the substrate, and the first heat conductor is provided on the first step portion.

[0013] In some embodiments, a cavity is formed in the first heat conducting member, and an end of the cavity away from the substrate is open.

[0014] In some embodiments, the inner shell includes a second inner shell, the second inner shell includes a second shell wall, the outer shell includes a second outer shell covering the second inner shell, the first heat conductor is arranged on the second shell wall, and the first heating device is arranged on the side of the substrate facing away from the second shell wall.

[0015] In some embodiments, the inner shell includes a second inner shell, the outer shell includes a second outer shell covering the second inner shell, the second inner shell and the first inner shell are arranged along the thickness direction of the substrate, the second inner shell includes a second shell wall, the second shell wall is arranged on the side of the substrate away from the first heating device, and the heat conductor includes a second heat conductor arranged on the second shell wall.

[0016] In some embodiments, the second heat conducting member and the first heat generating device are arranged opposite to each other along the thickness direction of the substrate.

[0017] In some embodiments, the circuit board further includes a second heating device, which is disposed on a side of the substrate facing the second shell wall and is opposite to the second heat conducting member.

[0018] In some embodiments, the second heat conducting member includes a boss section protruding from the second shell wall toward the second heating component.

[0019] In some implementations, an end of the boss segment away from the second shell wall is in contact with the circuit board through a second insulating heat-conducting medium for heat transfer.

[0020] In some implementations, the outer shell is a metal part, the heat conducting part is a metal part, and the inner shell is an insulating part, and the heat conducting part is integrally connected to the inner shell by injection molding.

[0021] In some implementations, the electrical control box is a sealed box.

[0022] An air conditioner according to a second aspect of the present invention includes the electronic control component according to the first aspect of the present invention.

[0023] According to the air conditioner of the embodiment of the present invention, by providing the electronic control component of the first aspect, the electronic control component has good heat dissipation performance, which can improve the working reliability of the air conditioner.

[0024] In some embodiments, the electronic control component is provided in the indoor unit of the air conditioner, and a driving module for driving the fan of the indoor unit is provided on the circuit board, and the driving module constitutes the first heating device.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a partial cross-sectional view of an electric control component according to an embodiment of the present utility model;

[0027] Figure 2 is a cross-sectional view of a first inner shell and a circuit board according to an embodiment of the present utility model;

[0028] Figure 3 This is a schematic structural diagram of a first inner shell according to an embodiment of the present utility model;

[0029] Figure 4 is a cross-sectional view of a first inner housing and a circuit board according to another embodiment of the present utility model;

[0030] Figure 5 is a structural schematic diagram of a first inner shell according to another embodiment of the present utility model;

[0031] Figure 6 This is a schematic structural diagram of a second inner shell according to an embodiment of the present utility model;

[0032] Figure 7 It is a structural exploded diagram of an electric control component according to one embodiment of the utility model.

[0033] Reference numerals:

[0034] Electronic control component 100;

[0035] Circuit board 1; substrate 11; first heating element 12; second heating element 13;

[0036] Electric control box 2; first box body 2a; second box body 2b; third box body 2c; outer shell 21; first outer shell 21a; second outer shell 21b; inner shell 22; opening area S; first inner shell 22a; first shell wall 221; first step portion 2211; second step portion 2212; second inner shell 22b; second shell wall 222; heat conductor 23; first heat conductor 231; extension section 2311; cavity 2312; second heat conductor 232; boss section 2321. DETAILED DESCRIPTION

[0037] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will appreciate the applicability of other processes and / or the use of other materials.

[0039] The electronic control component 100 according to the first embodiment of the present invention will be described below with reference to the accompanying drawings.

[0040] According to the electric control component 100 of the embodiment of the present utility model, Figure 1 As shown, the electronic control component 100 includes: a circuit board 1 and an electronic control box 2. The electronic control box 2 accommodates the circuit board 1 and includes an outer shell 21, an inner shell 22 and a heat conductor 23. The outer shell 21 covers the outer shell 22. The inner shell 22 has a through opening area S. The heat conductor 23 is arranged on the inner shell 22 and embedded in the opening area S to transfer the heat in the electronic control box 2 to the outer shell 21.

[0041] The circuit board 1 generates heat when working. The circuit board 1 is located in the electric control box 2. The outer shell 21 covers the outer shell 22. The outer shell 21 is in contact with the external environment. By providing an opening area S that passes through the inner shell 22 on the inner shell 22, the heat conductor 23 is embedded in the opening area S so that the heat in the electric control box 2 can be transferred to the outer shell 21. The heat in the electric control box 2 is then transferred to the external environment through the outer shell 21, which is beneficial to reducing the heat in the electric control box 2.

[0042] The heat conducting member 23 has better heat conductivity than the inner shell 22, which can improve the heat transfer efficiency of the electric control box 2, thereby improving the heat dissipation performance of the electric control component 100. In addition, the electric control component 100 has a simple structure and low manufacturing difficulty, which helps to reduce manufacturing costs.

[0043] It is worth noting that the heat within the electrical control box 2 is the heat of the air within the electrical control box 2 and / or the heat of the components within the electrical control box 2. The heat conductor 23 can be in contact with the air within the electrical control box 2 to exchange heat, and the circuit board 1 and the heat conductor 23 can be indirectly contacted with the air to transfer heat. Alternatively, the heat conductor 23 can be in contact with the circuit board 1 to transfer heat generated by the circuit board 1 to the housing 21.

[0044] The electric control component 100 of the embodiment of the present invention embeds a heat conducting member 23 on the inner shell 22 and uses the heat conducting member 23 to transfer heat to the outer shell 21. Compared with the method of directly opening a hole in the inner shell 22 to transfer heat to the outer shell 21 through the air, the sealing performance of the electric control box 2 is better, which can reduce the occurrence of flammable refrigerant entering the electric control box 2 and improve the situation of water vapor entering the electric control box 2 to produce condensation, thereby improving the electrical safety of the electric control component 100.

[0045] It is also worth noting that the outer shell 21 covers the outside of the inner shell 22, and at least part of the outer shell 21 covers the outside of the opening area S of the inner shell 22, that is, the outer shell 21 can cover part of the surface of the inner shell 22; or, the outer shell 21 can also cover the entire surface of the inner shell 22, that is, the outer shell 21 covers the inner shell 22.

[0046] According to the electronic control component 100 of the embodiment of the present invention, by embedding the heat conductive member 23 on the inner shell 22 to transfer the heat in the electronic control box 2 to the outer shell 21, the heat transfer efficiency of the electronic control box 2 can be improved while ensuring the sealing of the electronic control box 2, thereby improving the heat dissipation performance of the electronic control component 100.

[0047] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, the circuit board 1 includes a substrate 11 and a first heating device 12 provided on the substrate 11 , and the heat conducting member 23 includes a first heat conducting member 231 . The first heat conducting member 231 and the first heating device 12 are arranged opposite to each other along the thickness direction of the substrate 11 .

[0048] Optionally, the first heat conductor 231 contacts the air in the electrical control box 2 for heat exchange, and the first heat conductor 231 and the first heating device 12 are indirectly contacted and heat transferred through the air; or, also optionally, the first heat conductor 231 can be directly contacted and heat transferred with the first heating device 12 or indirectly contacted and heat exchanged through a heat-conducting medium to transfer the heat generated by the first heating device 12 to the housing 21.

[0049] The first heat conductor 231 and the first heating element 12 are arranged opposite to each other along the thickness direction of the substrate 11 , which can shorten the heat transfer path between the first heat conductor 231 and the first heating element 12 and help accelerate the heat dissipation of the first heating element 12 .

[0050] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the inner shell 22 includes a first inner shell 22a, and the first inner shell 22a includes a first shell wall 221. Figure 7 As shown, the outer shell 21 includes a first outer shell 21 a covering a first inner shell 22 a.

[0051] like Figure 2 As shown, the first shell wall 221 of the first inner shell 22a is arranged opposite to one side of the substrate 11 in the thickness direction, the first heat conductor 231 is arranged on the first shell wall 221, and the first heating element 12 is arranged on the side of the substrate 11 facing the first shell wall 221. The heat transfer efficiency of the substrate 11 is relatively low. Therefore, when the first heating element 12 is arranged on one side of the substrate 11 in the thickness direction, the first heat conductor 231 is also located on the same side of the substrate 11 in the thickness direction. The arrangement of the first heat conductor 231 and the first heating element 12 opposite each other can improve the heat exchange efficiency and the heat dissipation effect of the first heating element 12.

[0052] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the first heat conducting member 231 is in the shape of a sheet and both sides of the thickness surface are flush with both sides of the thickness surface of the first shell wall 221 .

[0053] The first heat conducting member 231 is sheet-shaped and exchanges heat only with the air within the electronic control box 2. After the heat generated by the first heating element 12 is transferred to the air within the electronic control box 2, the air within the electronic control box 2 exchanges heat with the first heat conducting member 231. The heat is then transferred to the housing 21 via the first heat conducting member 231, dissipating heat from the electronic control component 100.

[0054] By setting the first heat conductor 231 to be sheet-shaped and having both side surfaces of the thickness flush with both side surfaces of the thickness of the first shell wall 221, the first heat conductor 231 will not extend into the internal space of the electric control box 2, thereby avoiding interference with the internal components of the electric control box 2, improving the working reliability of the electric control component 100, and saving manufacturing costs.

[0055] In some embodiments of the present invention, Figure 4 As shown, the first heat conducting member 231 includes an extension section 2311 protruding from the first shell wall 221 toward the first heating device 12 .

[0056] The extension section 2311 extends into the internal space of the electric control box 2, and the contact area between the extension section 2311 and the air in the electric control box 2 is increased, which can improve the heat exchange efficiency; and the extension section 2311 can extend to contact and exchange heat with the first heating element 12, further improving the heat dissipation effect of the first heating element 12.

[0057] In some embodiments of the present invention, Figure 4 As shown, one end of the extension section 2311 away from the first shell wall 221 contacts the first heating element 12 for heat transfer through the first insulating heat-conducting medium.

[0058] The extension section 2311 contacts and transfers heat with the first heating element 12 , thereby improving the heat exchange efficiency between the first heating element 12 and the first heat conducting member 231 and accelerating the heat dissipation of the first heating element 12 .

[0059] When a high voltage is applied to the circuit board 1, there is a risk of electrical conduction between the circuit board 1 and the first thermal conductor 231 when the first thermal conductor 231 is a conductor, causing leakage and shorting of the electronic control component 100. Therefore, heat transfer between the first thermal conductor 231 and the first heating element 12 is achieved through contact via the first insulating thermal conductive medium, preventing electrical conduction between the circuit board 1 and the first thermal conductor 231 and improving the safety of the electronic control component 100.

[0060] Optionally, the first insulating heat-conducting medium may be an insulating heat-conducting gasket, or, further optionally, the first insulating heat-conducting medium may be a coating structure such as thermal grease.

[0061] In other embodiments of the present invention, the end of the extension section 2311 away from the first housing wall 221 is spaced apart from the first heating element 12. This increases the contact area between the extension section 2311 and the air in the electric control box 2, and shortens the distance between the extension section 2311 and the first heating element 12. This improves the heat exchange efficiency between the first heating element 12 and the first heat conductor 231, thereby accelerating heat dissipation from the first heating element 12.

[0062] When high voltage is applied to the circuit board 1, there is a risk of electrical conduction between the circuit board 1 and the first heat conductor 231 when the first heat conductor 231 is a conductor, causing leakage and short circuiting of the electronic control component 100. Therefore, maintaining a safe distance between the first heat conductor 231 and the first heating element 12 reduces the risk of voltage breakdown and improves the safety of the electronic control component 100.

[0063] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the first shell wall 221 is a stepped wall and includes a first step portion 2211 and a second step portion 2212 . The distance between the first step portion 2211 and the substrate 11 is greater than the distance between the second step portion 2212 and the substrate 11 . The first heat conductor 231 is provided on the first step portion 2211 .

[0064] It is worth noting that multiple heating devices are disposed on the substrate 11, including but not limited to power devices and passive devices, at least one of which is a first heating device 12. Passive devices are relatively large, while power devices are relatively small. Therefore, the first shell wall 221 is formed with a stepped structure having different distances from the substrate 11. The first shell wall 221 includes a first stepped portion 2211 and a second stepped portion 2212.

[0065] The first heat conductor 231 is located on a first step 2211 that is farther from the base plate 11. The first heat conductor 231 can be designed to be larger, thereby increasing its contact area with the air within the electrical control box 2. Furthermore, the first heating element 12 located on the base plate 11 directly opposite the first step 2211 is farther from the housing 21, making heat dissipation from the first heating element 12 more difficult. Therefore, placing the first heat conductor 231 on the first step 2211 can dissipate heat from the first heating element 12 that is farther from the electrical control box 2, thereby improving the heat dissipation efficiency of the first heating element 12.

[0066] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, a cavity 2312 is formed in the first heat conducting member 231 , and one end of the cavity 2312 away from the substrate 11 is open.

[0067] The cavity 2312 formed within the first heat conducting member 231 reduces manufacturing costs and weight of the electronic control component 100. The end of the cavity 2312 away from the substrate 11 is open, while the end of the first heat conducting member 231 closer to the substrate 11 blocks the cavity 2312, thereby ensuring the sealing of the electronic control box 2 and improving the safety of the electronic control component 100.

[0068] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, the inner shell 22 includes a second inner shell 22b, which includes a second shell wall 222. The outer shell 21 includes a second outer shell 21b covering the second inner shell 22b. The first heat conductor 231 is provided on the second shell wall 222. The first heating element 12 is provided on the side of the substrate 11 facing away from the second shell wall 222.

[0069] like Figure 6 and Figure 7 As shown, the second shell wall 222 of the second inner shell 22b is arranged opposite to one side of the substrate 11 in the thickness direction, the first heat conductor 231 is arranged on the second shell wall 222, and the first heating device 12 is arranged on the side of the substrate 11 facing away from the second shell wall 222.

[0070] Optionally, the first heat conductor 231 contacts the air in the electrical control box 2 for heat exchange, and the first heat conductor 231 and the first heating device 12 transfer heat indirectly through air. Placing the first heating device 12 and the first heat conductor 231 on both sides of the thickness of the substrate 11 will not affect the heat dissipation efficiency of the first heating device 12.

[0071] Alternatively, the first heat conductor 231 may contact the substrate 11 , and the first heating device 12 and the first heat conductor 231 may indirectly contact and transfer heat through the substrate 11 to transfer the heat generated by the first heating device 12 to the housing 21 .

[0072] To sum up, the arrangement positions of the first heat conductor 231 and the first heating device 12 can be selected according to actual needs. The first heat conductor 231 and the first heating device 12 can be arranged on the same side of the thickness direction of the substrate 11, or the first heat conductor 231 and the first heating device 12 can be arranged on both sides of the thickness direction of the substrate 11.

[0073] In some embodiments of the present invention, Figure 7 As shown, the electric control box 2 includes a first box body 2a and a second box body 2b, which are disposed on opposite sides of the substrate 11 in the thickness direction. The first box body 2a includes a first inner shell 22a and a first outer shell 21a, and the first inner shell 22a includes a first shell wall 221; the second box body 2b includes a second inner shell 22b and a second outer shell 21b, and the second inner shell 22b includes a second shell wall 222.

[0074] The first heating element 12 can be arranged on the side of the substrate 11 facing the first shell wall 221 or the side of the substrate 11 facing the second shell wall 222 ; the first heat conductor 231 can be arranged on the first shell wall 221 or the second shell wall 222 .

[0075] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, the inner shell 22 includes a second inner shell 22b, and the outer shell 21 includes a second outer shell 21b covering the second inner shell 22b. The second inner shell 22b and the first inner shell 22a are arranged along the thickness direction of the substrate 11. The second inner shell 22b includes a second shell wall 222. The second shell wall 222 is provided on the side of the substrate 11 facing away from the first heating element 12. The first shell wall 221 and the second shell wall 222 are located on opposite sides of the substrate 11 in the thickness direction.

[0076] The first heating element 12 is disposed on a side of the substrate 11 facing the first shell wall 221 . The heat conducting member 23 includes a first heat conducting member 231 disposed on the first shell wall 221 and a second heat conducting member 232 disposed on the second shell wall 222 .

[0077] The first heat conductor 231 transfers the heat in the electric control box 2 to the first shell 21a, and the second heat conductor 232 transfers the heat in the electric control box 2 to the second shell 21b. The first heat conductor 231 and the second heat conductor 232 transfer the heat in the electric control box 2, which can improve the heat transfer efficiency and help accelerate the heat dissipation speed of the first heating element 12.

[0078] Optionally, the first heat conductor 231 can be in contact with the air in the electrical control box 2 for heat exchange, and the first heat conductor 231 and the first heating device 12 can be indirectly contacted and transferred through the air; or, also optionally, the first heat conductor 231 can be in contact with the first heating device 12 directly or through a heat-conducting medium for heat transfer, so as to transfer the heat generated by the first heating device 12 to the housing 21.

[0079] Optionally, the second heat-conducting member 232 can be in contact with the air in the electrical control box 2 for heat exchange, and the second heat-conducting member 232 and the first heating device 12 are indirectly contacted and transferred through the air; or, also optionally, the second heat-conducting member 232 extends to the substrate 11 and is in contact with the first heating device 12 through the substrate 11 for heat transfer, so as to transfer the heat generated by the first heating device 12 to the housing 21.

[0080] In some embodiments of the present invention, the second heat conducting member 232 and the first heating element 12 are disposed opposite each other along the thickness direction of the substrate 11. This shortens the heat transfer path between the second heat conducting member 232 and the first heating element 12, thereby accelerating heat dissipation of the first heating element 12.

[0081] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, the circuit board 1 further includes a second heating element 13 . The second heating element 13 is disposed on a side of the substrate 11 facing the second shell wall 222 and opposite to the second heat conducting member 232 .

[0082] like Figure 6 and Figure 7 As shown, the second heating device 13 shown by the dotted line indicates that the second heating device 13 is located on the other side of the substrate 11, and the first heating device 12 and the first heating device 12 are arranged on both sides of the thickness direction of the substrate 11. The first heating device 12 is arranged on the side of the substrate 11 facing the first shell wall 221 to be opposite to the first heat conducting member 231, and the second heating device 13 is arranged on the side of the substrate 11 facing the second shell wall 222 to be opposite to the second heat conducting member 232.

[0083] Both the first heat-conducting member 231 and the second heat-conducting member 232 can dissipate heat from the electrical control box 2. The first heat-conducting member 231 is primarily used to dissipate heat from the first heating element 12, while the second heat-conducting member 232 is primarily used to dissipate heat from the second heating element 13. Of course, the first heat-conducting member 231 can also dissipate heat from other heating elements, including the second heating element 13, through heat exchange with the air within the electrical control box 2. Similarly, the second heat-conducting member 232 can also dissipate heat from other heating elements, including the first heating element 12.

[0084] By simultaneously providing the first heat conducting member 231 and the second heat conducting member 232 , heat can be specifically dissipated from the first heating device 12 and the second heating device 13 on both sides of the thickness of the substrate 11 , thereby improving the heat dissipation effect of the first heating device 12 and the second heating device 13 on both sides of the thickness of the substrate 11 .

[0085] In some embodiments of the present invention, Figure 6 As shown, the second heat conducting member 232 includes a boss section 2321 protruding from the second shell wall 222 toward the second heating device 13 .

[0086] The boss section 2321 protrudes toward the second heating element 13, and the contact area between the boss section 2321 and the air in the electric control box 2 is increased, which can improve the heat exchange efficiency; and the boss section 2321 can extend to contact and exchange heat with the circuit board 1, further improving the heat dissipation effect of the circuit board 1.

[0087] In some embodiments of the present invention, one end of the boss section 2321 away from the second shell wall 222 is in contact with the circuit board 1 through the second insulating heat-conducting medium for heat transfer.

[0088] The boss section 2321 contacts and conducts heat with the circuit board 1 , thereby improving the heat exchange efficiency between the circuit board 1 and the second heat conducting member 232 and accelerating the heat dissipation of the circuit board 1 .

[0089] When a high voltage is applied to the circuit board 1, there is a risk of electrical conduction between the circuit board 1 and the second thermally conductive member 232 when the second thermally conductive member 232 is a conductor, causing leakage and shorting of the electronic control component 100. Therefore, heat transfer between the second thermally conductive member 232 and the circuit board 1 through the second insulating thermally conductive medium prevents electrical conduction between the circuit board 1 and the second thermally conductive member 232, thereby improving the safety of the electronic control component 100.

[0090] Optionally, the second insulating heat-conducting medium may be an insulating heat-conducting gasket, or, further optionally, the second insulating heat-conducting medium may be a coating structure such as thermal grease.

[0091] In some embodiments of the present invention, the circuit board 1 also includes a second heating device 13, which is arranged on the side of the substrate 11 facing the second shell wall 222 and opposite to the second heat conductor 232. The end of the boss section 2321 away from the second shell wall 222 is in contact with the second heating device 13 through a second insulating heat-conducting medium for heat transfer.

[0092] In some embodiments of the present invention, the outer shell 21 is a metal part, the heat conducting part 23 is a metal part, and the inner shell 22 is an insulating part. The heat conducting part 23 and the inner shell 22 are integrally injection-molded.

[0093] The housing 21 is made of metal, and the heat conducting member 23 is also made of metal. The heat conducting member 23 transfers heat from the electrical control box 2 to the housing 21. Metal components provide a good heat dissipation effect, thereby improving the heat dissipation effect of the electrical control component 100. Furthermore, the metal housing 21 can improve the impact resistance of the electrical control component 100, thereby improving the safety of the electrical control component 100.

[0094] The inner shell 22 is an insulating part that can ensure the safety of the circuit board 1. The heat conductor 23 and the inner shell 22 are integrally injection-molded, which can improve the integrity of the heat conductor 23 and the inner shell 22. The structural stability of the inner shell 22 and the heat conductor 23 is strong, and the sealing between the inner shell 22 and the heat conductor 23 can be improved, thereby improving the working safety of the electronic control component 100.

[0095] In some embodiments of the present invention, the housing 21 is a fireproof sheet metal, which can effectively dissipate heat while improving the safety of the electronic control component 100. Optionally, the housing 21 is a stainless steel galvanized sheet metal shell.

[0096] In some embodiments of the present invention, the inner shell 22 is an insulating fireproof member, which can achieve safe insulation and fire protection of the electric control component 100. Optionally, the inner shell 22 is a flame retardant plastic member.

[0097] In some embodiments of the present invention, the electric control box 2 is a sealed box body. To meet the sealing requirements of the electric control box 2, it can effectively prevent flammable refrigerants or water from entering the electric control box 2, thereby ensuring the electrical safety of the electric control box 2.

[0098] It's worth noting that with rising environmental protection requirements, R290 is gradually replacing traditional refrigerants like R32 in air conditioners due to its cleanliness, ozone-safety, and minimal impact on the greenhouse effect. However, R290 is flammable. When leaked at low concentrations, it can explode when exposed to low-energy sparks. Therefore, the safety of R290 refrigerant usage must be ensured.

[0099] By designing the electric control box 2 as a sealed box body, the combustible refrigerant is prevented from contacting the heating components in the electric control box 2 , thereby improving the electrical safety of the electric control box 2 .

[0100] In some embodiments of the present invention, Figure 7 As shown, the electric control box 2 includes a first box body 2a and a second box body 2b. The first box body 2a and the second box body 2b are disposed on opposite sides of the substrate 11 in the thickness direction and are coupled together by an offset convex groove. The electric control box 2 also includes a third box body 2c. After the first box body 2a and the second box body 2b are coupled together, they are assembled with the third box body 2c.

[0101] The joints of the first box body 2a, the second box body 2b and the third box body 2c are sealed, and the wire outlet of the electric control box 2 is sealed with a wire outlet rubber ring, so that the electric control box 2 is designed as a sealed box body.

[0102] In a second aspect, an embodiment of the present invention provides an air conditioner, comprising the electronic control component 100 according to the embodiment of the first aspect of the present invention.

[0103] In the above technical solution, by adopting the above-mentioned electronic control component 100, the electronic control component 100 has good heat dissipation performance, which can improve the working reliability of the air conditioner.

[0104] In some embodiments of the present invention, the electronic control component 100 is provided in the indoor unit of the air conditioner, and a driving module for driving the fan of the indoor unit is provided on the circuit board 1 , and the driving module constitutes the first heating device 12 .

[0105] In the related art, the drive module and the fan are designed as one body. Long-term operation will cause the heat of the drive module to gradually accumulate. The drive module cannot be cooled, which will affect the operation of the fan and thus the air supply of the air conditioner.

[0106] The air conditioner of the embodiment of the present invention has a heat dissipation requirement by arranging the driving module for driving the fan of the indoor unit on the substrate 11. The electronic control component 100 itself has a heat dissipation requirement. While dissipating heat to other heat-generating components on the circuit board 1, the driving module can also be dissipated, thereby improving the working stability of the driving module and improving the air supply effect of the air conditioner.

[0107] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0108] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0109] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0110] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0111] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0112] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electronic control component, characterized in that: include: circuit boards; An electrical control box accommodates the circuit board and includes an outer shell, an inner shell and a heat conductor. The outer shell covers the inner shell, and the inner shell has a through opening area. The heat conductor is arranged on the inner shell and embedded in the opening area to transfer heat in the electrical control box to the outer shell.

2. The electronic control component according to claim 1, characterized in that: The circuit board includes a substrate and a first heating device arranged on the substrate. The heat conducting member includes a first heat conducting member. The first heat conducting member and the first heating device are arranged opposite to each other along the thickness direction of the substrate.

3. The electronic control component according to claim 2, characterized in that: The inner shell includes a first inner shell, the first inner shell includes a first shell wall, the outer shell includes a first outer shell covering the first inner shell, the first heat conductor is arranged on the first shell wall, and the first heating device is arranged on a side of the substrate facing the first shell wall.

4. The electronic control component according to claim 3, characterized in that: The first heat conducting member is in a sheet shape, and both side surfaces of the thickness thereof are flush with both side surfaces of the thickness of the first shell wall.

5. The electronic control component according to claim 3, characterized in that: The first heat conducting member includes an extension section protruding from the first shell wall toward the first heating component.

6. The electronic control component according to claim 5, characterized in that: One end of the extension section away from the first shell wall contacts the first heating element for heat transfer via a first insulating heat-conducting medium.

7. The electronic control component according to claim 5, characterized in that: The first shell wall is a stepped wall and includes a first step portion and a second step portion. The distance between the first step portion and the substrate is greater than the distance between the second step portion and the substrate. The first heat conductor is provided on the first step portion.

8. The electronic control component according to claim 5, characterized in that: A cavity is formed in the first heat conducting member, and one end of the cavity away from the substrate is open.

9. The electronic control component according to claim 2, characterized in that: The inner shell includes a second inner shell, the second inner shell includes a second shell wall, the outer shell includes a second outer shell covering the second inner shell, the first heat conductor is arranged on the second shell wall, and the first heating device is arranged on a side of the substrate facing away from the second shell wall.

10. The electronic control component according to any one of claims 3 to 8, characterized in that: The inner shell includes a second inner shell, the outer shell includes a second outer shell covering the second inner shell, the second inner shell and the first inner shell are arranged along the thickness direction of the substrate, the second inner shell includes a second shell wall, the second shell wall is arranged on the side of the substrate away from the first heating device, and the heat conductor includes a second heat conductor arranged on the second shell wall.

11. The electronic control component according to claim 10, characterized in that: The second heat conducting member and the first heat generating device are arranged opposite to each other along the thickness direction of the substrate.

12. The electronic control component according to claim 10, characterized in that: The circuit board further includes a second heating device, which is arranged on a side of the substrate facing the second shell wall and is opposite to the second heat conducting member.

13. The electronic control component according to claim 12, characterized in that: The second heat conducting member includes a boss section protruding from the second shell wall toward the second heating element.

14. The electronic control component according to claim 13, characterized in that: One end of the boss segment away from the second shell wall is in contact with the circuit board through a second insulating heat-conducting medium for heat transfer.

15. The electronic control component according to claim 1, characterized in that: The outer shell is a metal part, the heat conducting part is a metal part, and the inner shell is an insulating part. The heat conducting part is integrally connected to the inner shell by injection molding.

16. The electronic control component according to claim 1, characterized in that: The electric control box is a sealed box body.

17. An air conditioner, characterized in that: The invention comprises an electronic control component according to any one of claims 1 to 16.

18. The air conditioner according to claim 17, wherein: The electronic control component is an electronic control component according to any one of claims 2 to 14, and is arranged in the indoor unit of the air conditioner. A driving module for driving the fan of the indoor unit is provided on the circuit board, and the driving module constitutes the first heating device.

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