Electric control component and air conditioner with same

Abstract

The electric control component comprises an electric control box and a circuit board, the electric control box comprises a first box wall, the first box wall comprises an inner shell wall and an outer shell wall, the circuit board comprises a substrate and a first heating device, and the first heating device is arranged on the side, away from the first box wall, of the substrate. The portion, corresponding to the first heating device, of the substrate is a heat dissipation area, heat dissipation holes penetrating through the substrate are formed in the heat dissipation area, penetrating holes corresponding to the heat dissipation area are formed in the inner shell wall, a protruding part is arranged on the outer shell wall, and the protruding part penetrates through the penetrating holes to be in heat conduction fit with the heat dissipation area. The first heating device is arranged on the side, away from the first box wall, of the substrate, and the heat dissipation holes are formed in the substrate, so that the problems of low production and assembly efficiency, difficulty in device selection and the like of the electric control component caused by the fact that the first heating device is arranged on the side, close to the first box wall, of the substrate can be solved; the heat dissipation performance of the first heating device can be improved, and the heat dissipation effect 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] In air conditioning systems, good heat dissipation for electronic controls is crucial, ensuring reliable, continuous, and full-load operation. However, achieving both installation convenience and heat dissipation performance for heating components is challenging, leaving room for improvement. 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 electronic control component that can solve the problems of low production and assembly efficiency, difficulty in selecting device specifications, and other issues, and has good heat dissipation performance.

[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 utility model, the electric control component includes: an electric control box, the electric control box includes a first box wall, the first box wall includes an inner shell wall and an outer shell wall, the outer shell wall covers the outside of the inner shell wall; a circuit board, the circuit board is arranged in the electric control box, and includes a substrate and a first heating device arranged on the substrate, the first heating device is arranged on the side of the substrate away from the first box wall; wherein, the portion of the substrate corresponding to the first heating device is a heat dissipation area, the heat dissipation area is provided with a heat dissipation hole passing through the substrate, the inner shell wall is provided with a through hole corresponding to the heat dissipation area, the outer shell wall has a protrusion, the protrusion is passed through the through hole to cooperate with the heat dissipation area for heat conduction.

[0006] According to the electronic control component of the present invention, by positioning the first heating element on a side of the baseplate away from the first box wall and providing heat dissipation holes on the baseplate corresponding to the first heating element, the efficiency of heat transfer from the first heating element to the outer shell wall of the first box wall is improved. Heat from the first heating element is transferred to the outside of the electronic control box through the outer shell wall, effectively dissipating heat from the first heating element. This not only solves the problems of low production and assembly efficiency and difficulty in selecting component specifications for the electronic control component caused by positioning the first heating element on the side of the baseplate close to the first box wall, but also improves the heat dissipation performance of the first heating element, thereby enhancing the heat dissipation effect of the electronic control component.

[0007] In some embodiments, a heat conducting member is provided between the protrusion and the heat dissipation area, and the protrusion is in indirect contact with the heat dissipation area through the heat conducting member for heat transfer.

[0008] In some embodiments, the heat conducting member completely covers the heat dissipation hole, and / or the heat conducting member completely covers a surface of the protrusion facing the thermal pad.

[0009] In some embodiments, the thermal conductor is an insulating thermal pad, and / or the thickness of the thermal conductor is greater than or equal to 2 mm.

[0010] In some embodiments, the inner shell wall includes a protruding ring protruding toward the substrate and surrounding the through hole.

[0011] In some embodiments, the heat dissipation hole includes a first hole, the first hole is a circle or a regular polygon, the diameter of the first hole is greater than or equal to 0.1 mm, wherein at least two of the first holes form a hole group, and a plurality of the hole groups are arranged at intervals in the heat dissipation area.

[0012] In some embodiments, the heat dissipation hole includes a second hole, which is a long strip-shaped hole with a length greater than a width, and a width of the second hole is greater than or equal to 0.1 mm. A plurality of the second holes are arranged at intervals in the heat dissipation area.

[0013] In some embodiments, there are multiple heat dissipation holes; and / or, a metal layer is attached to the hole wall of the heat dissipation hole.

[0014] In some embodiments, the shell wall is a metal part, wherein the wall thickness of the protrusion is greater than or equal to the wall thickness of the rest of the shell wall, and / or the shell wall is stamped to form the protrusion so that the outer surface of the shell wall forms a recess corresponding to the protrusion.

[0015] In some embodiments, the electrical control box is a sealed box.

[0016] 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.

[0017] According to the air conditioner of the present invention, the overall performance of the air conditioner is improved by providing the electronic control component of the first aspect.

[0018] 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.

[0019] 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

[0020] Figure 1is an exploded view of the structure of the electric control component according to some embodiments of the present utility model;

[0021] Figure 2 is a schematic structural diagram of a first hole on a substrate according to some embodiments of the present utility model;

[0022] Figure 3 is a schematic structural diagram of a second hole on a substrate according to some embodiments of the present utility model;

[0023] Figure 4 is a circuit diagram of a driving module provided according to some embodiments of the present utility model;

[0024] Figure 5 1 is a circuit diagram of a driving module provided according to other embodiments of the present invention.

[0025] Reference numerals:

[0026] Electronic control component 100;

[0027] Electric control box 1; first box wall 1A; inner shell wall 11; through hole 111; protruding ring 112; outer shell wall 12; protruding portion 121;

[0028] Circuit board 2; substrate 21; heat dissipation area S; heat dissipation hole 211; first hole 211a; second hole 211b; first heating element 22; driving module 221; controller 2211; driving chip 2212;

[0029] Heat conducting member 3; Insulating heat conducting pad 3a. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] The electronic control component 100 according to the first embodiment of the present invention will be described below with reference to the accompanying drawings.

[0033] 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: an electronic control box 1 and a circuit board 2, the electronic control box 1 includes a first box wall 1A, the first box wall 1A includes an inner shell wall 11 and an outer shell wall 12, the outer shell wall 12 covers the inner shell wall 11, the circuit board 2 is arranged in the electronic control box 1, and includes a substrate 21 and a first heating device 22 arranged on the substrate 21 (for example, carrying components and electrical connections), the first heating device 22 is arranged on the side of the substrate 21 away from the first box wall 1A; wherein, the portion corresponding to the substrate 21 and the first heating device 22 is a heat dissipation area S, and a heat dissipation hole 211 penetrating the substrate 21 is provided at the heat dissipation area S, a through hole 111 corresponding to the heat dissipation area S is opened on the inner shell wall 11, and a protrusion 121 is provided on the outer shell wall 12, and the protrusion 121 is penetrated by the through hole 111 to cooperate with the heat dissipation area S for thermal conductivity.

[0034] The first heating element 22 on the circuit board 2 generates heat during operation. As the power of the electronic control component 100 increases, the heat generated by the first heating element 22 also increases. Failure to dissipate the heat from the first heating element 22 in a timely manner can affect the normal operation of the electronic control component 100. The present invention utilizes the first wall 1A of the electronic control box 1 to dissipate heat from the first heating element 22. This heat is transferred to the exterior of the electronic control box 1 through the first wall 1A, effectively dissipating heat from the first heating element 22.

[0035] It is worth noting that the heating devices on the substrate 21 include but are not limited to power devices and passive devices, and at least one of these heating devices is constructed as a first heating device 22. The heating devices are generally arranged on one side of the substrate 21, and the side where the heating devices are arranged is the front side of the substrate 21, and the other side in the thickness direction of the substrate 21 is the back side of the substrate 21. Since the passive devices on the front side of the substrate 21 are relatively large, the distance between the wall of the electric control box 1 on the side opposite to the front side of the substrate 21 and the substrate 21 is relatively far, while the space occupied by the back side of the substrate 21 is relatively small. Therefore, the present invention adopts the first box wall 1A on the back side of the electric control box 1 relative to the substrate 21 to dissipate heat from the first heating device 22. The distance between the first box wall 1A and the substrate 21 is relatively close, which can improve the heat exchange efficiency.

[0036] The first box wall 1A includes an outer shell wall 12 and an inner shell wall 11. The outer shell wall 12 is located on the outside of the inner shell wall 11. A through-hole 111 is provided on the inner shell wall 11 of the first box wall 1A. The outer shell wall 12 has a protrusion 121. The protrusion 121 is passed through the through-hole 111 so that it can cooperate with the first heating device 22 for thermal conductivity. The electronic control component 100 realizes heat dissipation of the first heating device 22 through the outer shell wall 12, and the outer shell wall 12 is in contact with the external environment, which is beneficial to improving the heat dissipation effect of the electronic control component 100.

[0037] The protrusion 121 can effectively shorten the distance between the outer shell wall 12 and the first heating element 22, increase the thermal conductivity between the outer shell wall 12 and the first heating element 22, and improve the heat transfer efficiency between the outer shell wall 12 and the first heating element 22, thereby improving the heat dissipation performance of the first heating element 22. In addition, the outer shell wall 12 penetrates the inner shell wall 11 to conduct heat to the first heating element 22. Without adding any existing components, a simple design is made for the first box wall 1A, so that the heat of the first heating element 22 is transferred to the outside of the electric control box 1 through the outer shell wall 12. The structure of the electric control component 100 is simple, easy to manufacture, and can reduce design and manufacturing costs.

[0038] Exemplarily, the outer shell wall 12 covers the outside of the inner shell wall 11, which can be understood as at least part of the outer shell wall 12 covering the outside of the inner shell wall 11, that is, the outer shell wall 12 can cover part of the surface of the inner shell wall 11; or, the outer shell wall 12 can also cover the entire surface of the inner shell wall 11, that is, the outer shell covers the inner shell.

[0039] It is also worth noting that the first heating device 22 may further include a driving module 221 , etc. The driving module 221 is smaller in size than other first heating devices 22 .

[0040] The present invention disposes all first heating devices 22, including the driver module 221, on the front side of the substrate 21, thereby resolving issues such as low production and assembly efficiency of the electronic control component 100 and difficulty selecting device specifications. Furthermore, by providing a heat dissipation hole 211 extending through the substrate 21, the first heating device 22 disposed on the front side of the substrate 21 can transfer heat to the housing wall 12 through the heat dissipation hole 211. Compared to transferring heat generated by the first heating device 22 on the front side of the substrate 21 to the housing wall 12 on the back side of the substrate 21 solely through the substrate 21, heat transfer through the heat dissipation hole 211 provides a better heat transfer effect, thereby resolving the issue of slow heat dissipation, and facilitating improved heat transfer efficiency between the housing wall 12 and the first heating device 22, thereby enhancing the heat dissipation performance of the first heating device 22.

[0041] The protrusion 121 is provided with a through-hole 111 and is thermally coupled to the heat dissipation area S provided with the heat dissipation holes 211 to exchange heat with the first heating element 22. The protrusion 121 and the heat dissipation area S may be in direct contact to achieve thermal coordination, or may be in indirect contact through a heat conducting medium or air to achieve thermal coordination.

[0042] According to the electric control component 100 of the embodiment of the present utility model, by arranging the first heating element 22 on the side of the substrate 21 away from the first box wall 1A, and providing heat dissipation holes 211 on the substrate 21 corresponding to the first heating element 22, the heat transfer efficiency of the first heating element 22 to the outer shell wall 12 of the first box wall 1A is improved, and the heat of the first heating element 22 is transferred to the outside of the electric control box 1 through the outer shell wall 12, so as to effectively dissipate the heat of the first heating element 22. This not only solves the problems of low production and assembly efficiency of the electric control component 100 and difficulty in selecting component specifications caused by arranging the first heating element 22 on the side of the substrate 21 close to the first box wall 1A, but also improves the heat dissipation performance of the first heating element 22, which is conducive to improving the heat dissipation effect of the electric control component 100.

[0043] In some embodiments of the present invention, Figure 1 As shown, a heat conducting member 3 is provided between the protrusion 121 and the heat dissipation area S, and the protrusion 121 is in indirect contact with the heat dissipation area S through the heat conducting member 3 for heat transfer.

[0044] Compared to heat transfer through air, the heat transfer efficiency of the heat conductor 3 is higher, and the heat exchange effect between the protrusion 121 and the heat dissipation area S through the heat conductor 3 is good, which can improve the heat dissipation effect of the first heating element 22. In addition, the contact heat transfer through the heat conductor 3 is more stable than the heat transfer between the protrusion 121 and the heat dissipation area S through air, which can reduce the possibility of misalignment between the protrusion 121 and the heat dissipation area S caused by impact.

[0045] Optionally, the heat conducting member 3 may be a heat conducting gasket, or, further optionally, the heat conducting member 3 may be a coating structure such as heat conducting silicone grease, which all fall within the protection scope of the present invention.

[0046] In some embodiments of the present invention, the heat conducting member 3 completely covers the heat dissipation hole 211 , and / or the heat conducting member 3 completely covers the surface of the protrusion 121 facing the heat conducting pad.

[0047] The heat dissipation holes 211 are used to transfer heat between the first heating element 22 and the heat conducting member 3, and the protrusions 121 are used to transfer heat to the heat conducting member 3. The heat conducting member 3 completely covers the heat dissipation holes 211 and / or the surfaces of the protrusions 121 used for heat transfer, thereby improving the heat transfer effect of the heat conducting member 3 and improving the heat dissipation of the first heating element 22.

[0048] In some embodiments of the present invention, the heat conducting member 3 is an insulating heat conducting pad 3a. The insulating heat conducting pad 3a not only performs heat transfer between the protrusion 121 and the heat dissipation area S, but also improves the safety of the electronic control component 100.

[0049] When high voltage is applied to the circuit board 2 and the protrusion 121 is a conductor, there is a risk of electrical conduction between the circuit board 2 and the protrusion 121, causing leakage and short circuiting of the electronic control component 100. Therefore, the insulating thermal pad 3a is provided between the protrusion 121 and the heat dissipation area S to prevent electrical conduction between the circuit board 2 and the protrusion 121, thereby improving the safety of the electronic control component 100.

[0050] In some embodiments of the present invention, the thickness of the heat conducting member 3 is greater than or equal to 2 mm.

[0051] When high voltage is applied to the circuit board 2, if the thickness of the heat conductor 3 is too small, the distance between the protrusion 121 and the circuit board 2 is too small, which may lead to a voltage breakdown risk. Therefore, setting the thickness of the heat conductor 3 to be greater than or equal to 2 mm can increase the creepage distance between the circuit board 2 and the protrusion 121, thereby improving the operating safety of the electronic control component 100.

[0052] In some embodiments of the present invention, the thermally conductive member 3 is an insulating thermal pad 3a having a thickness greater than or equal to 2 mm. Because the protrusion 121 and the heat dissipation area S are in indirect contact via the insulating thermal pad 3a, an interference fit is formed between the protrusion 121 and the insulating thermal pad 3a, and between the circuit board 2 and the insulating thermal pad 3a. The protrusion 121 and the circuit board 2 jointly squeeze the insulating thermal pad 3a, thereby improving the stability of the arrangement of the insulating thermal pad 3a.

[0053] Therefore, the thickness of the insulating thermal pad 3a should be greater than or equal to 2 mm. On the one hand, it can still maintain a certain thickness when squeezed, ensuring a safe distance between the circuit board 2 and the protrusion 121 and reducing the risk of voltage breakdown; on the other hand, it can avoid wear caused by mutual squeezing between the shell wall 12 and the circuit board 2.

[0054] In some embodiments of the present invention, Figure 1 As shown, the inner shell wall 11 includes a protruding ring 112 protruding toward the base plate 21 and surrounding the through hole 111 .

[0055] The protruding ring 112 is disposed around the through-hole 111, thereby increasing the structural strength of the inner shell wall 11 at the through-hole 111, reducing the risk of cracking and damage to the inner shell wall 11 at the through-hole 111, and improving the operational reliability of the inner shell wall 11. Furthermore, the protruding ring 112 serves as a guide for the protrusion 121 as it passes through the through-hole 111, thereby improving the assembly efficiency and the accuracy of the fit between the inner shell wall 11 and the outer shell wall 12.

[0056] By providing the convex ring 112, the fitting length between the protrusion 121 and the inner shell wall 11 at the through-hole 111 and the hole wall can be increased, thereby increasing the contact area between the protrusion 121 and the inner shell wall 11 at the through-hole 111, thereby improving the sealing between the protrusion 121 and the through-hole 111, and to a certain extent, preventing external flammable gases from entering the electric control box 1, which is beneficial to improving the electrical safety of the electric control component 100.

[0057] In some embodiments of the present invention, the side surface of the protrusion 121 facing the thermal pad is flush with the side surface of the protrusion ring 112 facing the thermal pad. After the protrusion 121 is passed through the through hole 111, the side surface of the protrusion 121 facing the thermal pad is thermally coordinated with the heat dissipation area S.

[0058] In some embodiments of the present invention, Figure 2 As shown, the heat dissipation hole 211 includes a first hole 211a, which is circular or regular polygonal, and has a diameter greater than or equal to 0.1 mm. At least two first holes 211a form a hole group, and a plurality of hole groups are arranged at intervals in the heat dissipation area S.

[0059] The first hole 211a is circular or regular polygonal, and is easy to manufacture. The shape of the first hole 211a is optional and can be selected according to actual needs. The diameter of the first hole 211a is greater than or equal to 0.1 mm, which can achieve effective heat dissipation.

[0060] There are multiple heat dissipation holes 211, and the heat dissipation effect can be improved by providing multiple heat dissipation holes 211. At least two first holes 211a form a hole group, and multiple hole groups are arranged at intervals. The arrangement of the hole groups helps to concentrate the heat dissipation area S, improving the heat dissipation efficiency. The multiple hole groups arranged at intervals help to evenly distribute heat and avoid local overheating.

[0061] In some embodiments of the present invention, the hole groups are arranged corresponding to the first heating devices 22. There are multiple first heating devices 22, and there are multiple hole groups and they are arranged corresponding to the first heating devices 22, so that each first heating device 22 can dissipate heat well.

[0062] In other embodiments of the present invention, Figure 3 As shown, the heat dissipation hole 211 includes a second hole 211b, which is a long strip hole with a length greater than a width. The width of the second hole 211b is greater than or equal to 0.1 mm. A plurality of second holes 211b are arranged at intervals in the heat dissipation area S.

[0063] Compared to circular or regular polygonal second holes 211b, the elongated second holes 211b occupy more space, thus reducing the number of second holes 211b, which is beneficial to improving the manufacturing efficiency of the substrate 21. The width of the second holes 211b is greater than or equal to 0.1mm, which can achieve effective heat dissipation.

[0064] In some embodiments of the present invention, Figure 1-Figure 3 As shown, there are multiple heat dissipation holes 211.

[0065] There are multiple heat dissipation holes 211 to improve the heat dissipation effect, and arranging multiple heat dissipation holes 211 at intervals helps to evenly distribute heat and avoid local overheating.

[0066] In some embodiments of the present invention, a metal layer is attached to the wall of the heat dissipation hole 211 .

[0067] Compared with heat transfer through the air in the heat dissipation hole 211 , the metal layer on the hole wall of the heat dissipation hole 211 has better heat transfer effect. Therefore, attaching the metal layer on the hole wall of the heat dissipation hole 211 can further improve the heat dissipation effect of the first heating element 22 .

[0068] It is understandable that the circuit board 2 has a copper-plated hole manufacturing process during the manufacturing process, and copper is deposited on the hole walls opened on the substrate 21. Therefore, the process of attaching a metal layer to the hole walls of the heat dissipation hole 211 is not difficult and does not increase the difficulty of manufacturing the circuit board 2.

[0069] In some embodiments of the present invention, the heat dissipation holes 211 are copper-plated holes.

[0070] In some other embodiments of the present invention, the heat dissipation hole 211 is directly opened on the substrate 21 , and no metal layer is attached to the hole wall of the heat dissipation hole 211 .

[0071] In some embodiments of the present invention, the housing wall 12 is a metal member, wherein the wall thickness of the protrusion 121 is greater than or equal to the wall thickness of the rest of the housing wall 12 .

[0072] The shell wall 12 is a metal part, which has a good heat dissipation effect and can improve the heat dissipation effect of the shell wall 12 on the first heating device 22. The metal part can also improve the impact resistance of the shell wall 12, which is beneficial to improving the safety of the electronic control component 100.

[0073] The wall thickness of the protrusion 121 is greater than or equal to the thickness of the rest of the shell wall 12 , which can improve the structural strength of the protrusion 121 and the stability of the protrusion 121 passing through the through hole 111 , thereby improving the heat dissipation reliability.

[0074] In some embodiments of the present invention, the housing wall 12 is a metal piece, and the housing wall 12 is punched to form a protrusion 121 , so that the outer surface of the housing wall 12 forms a depression corresponding to the protrusion 121 .

[0075] The protrusion 121 is formed by stamping the housing wall 12 , which simplifies the manufacture of the housing wall 12 , reduces the production cost of the housing wall 12 , and reduces the weight of the electronic control component 100 .

[0076] In some embodiments of the present invention, the outer shell wall 12 is a metal member, and the inner shell wall 11 is an insulating member. Thus, the inner shell wall 11 can ensure the safety of the circuit board 2 and ensure electrical insulation between the circuit board 2 and the outer shell wall 12. The outer shell wall 12 is a metal member (e.g., an aluminum alloy member, a galvanized member) that can improve the impact resistance of the outer shell wall 12 and facilitate the safety of the electronic control component 100. Furthermore, the metal member has a good heat dissipation effect, which can improve the heat dissipation effect of the outer shell wall 12 on the first heating element 22.

[0077] Exemplarily, the housing wall 12 is a fireproof sheet metal part. While improving the safety of the electronic control component 100 , the housing wall 12 can effectively dissipate heat from the first heating element 22 .

[0078] Exemplarily, the inner shell wall 11 may be an insulating fireproof component, which may achieve safe insulation and fireproofing effects for the electric control component 100 .

[0079] In some embodiments of the present invention, the electrical control box 1 is a sealed box body. Thus, the electrical control box 1 is sealed to meet the sealing requirements of the electrical control box 1, and can effectively prevent flammable refrigerants or water from entering the electrical control box 1, thereby ensuring the electrical safety of the electrical control box 1.

[0080] 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.

[0081] By designing the electric control box 1 as a sealed box body, the flammable refrigerant is prevented from contacting the first heating element 22 in the electric control box 1 , thereby improving the electrical safety of the electric control box 1 .

[0082] In some embodiments of the present invention, the box body connection of the electric control box 1 is sealed, and the wire outlet of the electric control box 1 is sealed with a wire outlet rubber ring, thereby forming a closed cavity.

[0083] 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.

[0084] In the above technical solution, by adopting the above-mentioned electronic control component 100, the overall performance of the air conditioner can be improved.

[0085] 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 221 for driving the fan of the indoor unit is provided on the circuit board 2 , and the driving module 221 constitutes the first heating device 22 .

[0086] 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.

[0087] The air conditioner of the embodiment of the present invention has a heat dissipation requirement by arranging the driving module 221 for driving the fan of the indoor unit on the substrate 21. The electronic control component 100 itself has a heat dissipation requirement. While dissipating heat to other heating components on the circuit board 2, the driving module 221 can also be dissipated, thereby improving the working stability of the driving module 221 and improving the air supply effect of the air conditioner.

[0088] For example, the various components of an air conditioner are purchased from different suppliers, while the electronic control unit 100 is manufactured by the air conditioner manufacturer itself. Therefore, when the driver module and fan are designed as an integrated unit, the quality of the fan and driver module cannot be guaranteed. By separating the driver module 221 from the fan and making it part of the electronic control unit 100, the quality of the driver module 221 is guaranteed, thereby improving the reliability of the air conditioner.

[0089] According to the air conditioner of the present invention, by arranging the driver module 221 on the front side of the base plate 21, the front side of the base plate 21 has a larger space than the back side of the base plate 21, eliminating the need for red glue or over-the-knee carrier methods for production, nor the need for wave soldering. This can solve the problems of low production and assembly efficiency of the driver module 221 and difficulty in selecting component specifications. In addition, heat dissipation holes 211 are provided on the base plate 21 corresponding to the driver module 221. Heat from the driver module 221 is transferred in the order of the driver module 221, the heat dissipation holes 211, the protrusion 121, and the air outside the electrical control box 1, thereby effectively dissipating heat from the driver module 221.

[0090] In some embodiments of the present invention, Figure 4 and Figure 5As shown, the driving module 221 includes a controller 2211 and a driving chip 2212, and the controller 2211 is electrically connected to the driving chip 2212. Therefore, by arranging the controller 2211 and the driving chip 2212 on the substrate 21, the controller 2211 and the driving chip 2212 can be integrated, which can achieve miniaturization and low cost of the electric control box 1.

[0091] For example, Figure 4 and Figure 5 As shown, the driver module and the fan are electrically connected. The output end of the driver module 22 is suitable for connecting to the indoor unit's fan. The controller 2211 is configured to control the driver chip 2212 to drive the indoor unit's fan. The substrate 21 is a printed circuit board (PCB). The controller 2211 and multiple driver chips 2212 are arranged on the same substrate 21 to achieve a two-in-one integration of the controller 2211 and the driver chips 2212. This solves the problem of large board space occupied by external fan drivers and reduces application costs.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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: An electric control box, comprising a first box wall, the first box wall comprising an inner shell wall and an outer shell wall, the outer shell wall covering the outer shell wall; A circuit board is provided in the electric control box and includes a base plate and a first heating element provided on the base plate, wherein the first heating element is provided on a side of the base plate away from the first box wall; Among them, the part of the substrate corresponding to the first heating device is a heat dissipation area, and a heat dissipation hole penetrating the substrate is provided at the heat dissipation area. The inner shell wall is provided with a through-hole corresponding to the heat dissipation area, and the outer shell wall has a protrusion, which is passed through the through-hole to cooperate with the heat dissipation area for thermal conductivity.

2. The electronic control component according to claim 1, characterized in that: A heat conducting member is provided between the protruding portion and the heat dissipation area, and the protruding portion is in indirect contact with the heat dissipation area through the heat conducting member for heat transfer.

3. The electronic control component according to claim 2, characterized in that: The heat conducting member completely covers the heat dissipation hole, and / or the heat conducting member completely covers a surface of the protrusion facing the heat conducting member.

4. The electronic control component according to claim 2, characterized in that: The heat conducting member is an insulating heat conducting pad, and / or the thickness of the heat conducting member is greater than or equal to 2 mm.

5. The electronic control component according to claim 2, characterized in that: The inner shell wall includes a protruding ring protruding toward the base plate and surrounding the through hole.

6. The electronic control component according to claim 1, characterized in that: The heat dissipation hole includes a first hole, which is circular or regular polygonal, and has a diameter greater than or equal to 0.1 mm. At least two of the first holes form a hole group, and a plurality of the hole groups are arranged at intervals in the heat dissipation area.

7. The electronic control component according to claim 1, characterized in that: The heat dissipation hole includes a second hole, which is a long strip-shaped hole with a length greater than a width. The width of the second hole is greater than or equal to 0.1 mm. A plurality of the second holes are arranged at intervals in the heat dissipation area.

8. The electronic control component according to claim 1, characterized in that: There are multiple heat dissipation holes; and / or, a metal layer is attached to the hole wall of the heat dissipation hole.

9. The electronic control component according to claim 1, characterized in that: The shell wall is a metal part, wherein the wall thickness of the protrusion is greater than or equal to the wall thickness of the rest of the shell wall, and / or the protrusion is stamped out of the shell wall so that the outer surface of the shell wall forms a depression corresponding to the protrusion.

10. The electronic control component according to any one of claims 1 to 9, characterized in that: The electric control box is a sealed box body.

11. An air conditioner, characterized in that: The invention comprises the electronic control component according to any one of claims 1 to 10.

12. The air conditioner according to claim 11, characterized in that The electronic control component is arranged in the indoor unit of the air conditioner. A driving module for driving the fan of the indoor unit is arranged on the circuit board. The driving module constitutes the first heating element.

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