CN220524321U - Electric control part and air conditioner - Google Patents

Abstract

The utility model discloses an electric control part and an air conditioner, wherein the electric control part comprises: automatically controlled box, circuit subassembly and first heat radiation structure automatically controlled box includes the radiating part, circuit subassembly includes the circuit board and locates the first heating device on the circuit board, in the automatically controlled box was located to first heating device, and the one end that keeps away from the circuit board of first heating device corresponds the radiating part, first heat radiation structure includes the heat conduction glue, the heat conduction glue is established between first heating device and radiating part and includes first glue film and second glue film, first glue film is located the one side that keeps away from the radiating part of second glue film, the coefficient of thermal expansion of first glue film is greater than the coefficient of thermal expansion of second glue film, the coefficient of thermal expansion of second glue film is greater than the coefficient of thermal expansion of first glue film. Therefore, the heat dissipation effect of the electric control component can be improved, so that the working stability of the electric control component is improved.

Description

Electric control part and air conditioner

Technical Field

The utility model relates to the technical field of electric control components, in particular to an electric control component and an air conditioner.

Background

In the related art, components such as a power module, an IGBT module, a capacitor, an inductor and the like are integrated in the electric control box, in the use process, the components in the electric control box can generate larger heat, and especially along with the miniaturization and compactification design of the electric control box, the high power and high integration level setting of the electric equipment adopting the electric control box can lead to the increase of the electric power of the components in the electric control box, the heat productivity is larger, the heat generated by the components is difficult to dissipate, and the working stability of the electric control component is affected.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model aims at providing the electric control component which has higher heat dissipation efficiency and higher working stability.

The utility model also provides an air conditioner with the electric control component.

An electronic control unit according to an embodiment of the first aspect of the present utility model includes: automatically controlled box, circuit subassembly and first heat radiation structure automatically controlled box includes the radiating part, the circuit subassembly includes the circuit board and locates first heating device on the circuit board, first heating device is located in the automatically controlled box, just first heating device keep away from the one end of circuit board corresponds the radiating part, first heat radiation structure includes the heat conduction glue, the heat conduction glue is established first heating device with between the radiating part and including first glue film and second glue film, first glue film is located second glue film keep away from one side of radiating part, the coefficient of thermal expansion of first glue film is greater than the coefficient of thermal expansion of second glue film, the coefficient of thermal expansion of second glue film is greater than the coefficient of thermal expansion of first glue film.

According to the electric control component provided by the embodiment of the utility model, the heat generated by the first heating device in the electric control box is quickly and timely led out to the electric control box by arranging the first heat dissipation structure, so that the temperature in the electric control box is reduced, the working environment temperature is improved, the working environment temperature of the components including the first heating device in the electric control box is lower, and the working stability and the use safety of the electric control component are improved.

According to some embodiments of the utility model, the heat conductive gel is a heat conductive silicone gel and is injection molded over the first heat generating device.

According to some embodiments of the utility model, the heat conductive glue has a cross-sectional area that gradually increases in a direction from the second glue layer to the first glue layer.

In some embodiments, the first heat generating device includes a first inductive device and a first capacitive device, and the heat conductive adhesive is separately disposed between the first inductive device and the heat dissipation portion, and between the first capacitive device and the heat dissipation portion, respectively.

According to some embodiments of the utility model, a heat-conducting silicone grease is arranged between the heat-conducting glue and the heat-dissipating part, and the heat-conducting silicone grease is arranged on the heat-dissipating part and/or the second glue layer.

In some embodiments, the electronic control component further includes a second heat dissipating structure, which is located outside the electronic control box and is in heat transfer engagement with the heat dissipating portion.

Further, the second heat dissipation structure comprises a heat pipe and a first heat dissipation piece, a first portion of the heat pipe is in heat transfer fit with the heat dissipation portion, a second portion of the heat pipe is in heat transfer fit with the first heat dissipation piece, and the first heat dissipation piece comprises a plurality of first heat dissipation fins arranged at intervals.

Further, the second heat dissipation structure further comprises a heat conduction plate, the heat conduction plate covers the heat dissipation portion, and the first portion of the heat pipe is embedded in the heat conduction plate so as to transfer heat with the heat dissipation portion through the heat conduction plate.

Further, the first heat dissipation element is arranged at a distance from the electric control box, and the heat pipe extends along a straight line segment and/or a curve segment from the first part to the second part.

According to some embodiments of the utility model, the electric control box comprises an inner shell and an outer shell covered outside the inner shell, wherein the inner shell is an insulating shell and is provided with an opening at the heat dissipation part, and the outer shell is a metal shell and covers and closes the opening.

In some embodiments, the circuit assembly further includes a second heat generating device disposed on the circuit board and located in the electronic control box, and the electronic control component further includes a second heat dissipating structure for dissipating heat from the second heat generating device, where the second heat dissipating structure includes a plurality of second heat dissipating fins disposed at intervals, and at least a portion of each of the second heat dissipating fins is located outside the electronic control box.

Further, the second heat dissipation structure further comprises a connecting plate, the connecting plate is located in the electric control box and covers the second heating device, and the second heat dissipation fin is connected to the connecting plate.

Further, the first heat generating device comprises a first inductive device which is positioned on the same side of the circuit board as the second heat generating device, the height of the second heat generating device is smaller than that of the first inductive device in the thickness direction of the circuit board, the electric control box comprises a first wall part which is positioned on one side of the first inductive device far away from the circuit board, a part of the first wall part corresponding to the first inductive device is a first wall part, a part of the first wall part corresponding to the second heat generating device is a second wall part, and the distance between the first wall part and the circuit board is larger than that between the second wall part and the circuit board.

According to some embodiments of the utility model, the electronic control box is a closed box body.

According to the air conditioner, the air conditioner comprises a shell, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan, an air exhaust fan and the electric control component in the embodiment, wherein the air supply air duct and the air exhaust air duct which are isolated from each other are arranged in the shell, the first heat exchanger is arranged in the air supply air duct, the second heat exchanger is arranged in the air exhaust air duct, the first heat exchanger and the second heat exchanger are connected with the compressor and respectively serve as a condenser and an evaporator, an inlet of the air supply fan is communicated with the air supply air duct, an outlet of the air supply fan is communicated to the indoor side, and an inlet of the air exhaust fan is communicated with the air exhaust air duct, and an outlet of the air exhaust fan is communicated to the outdoor side.

Further, the electric control component is arranged in the exhaust air duct; and/or the refrigerant in the compressor comprises carbon dioxide.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic diagram of an electronic control unit according to an embodiment of the present utility model;

FIG. 2 is another schematic diagram of an electronic control unit according to an embodiment of the present utility model;

fig. 3 is a schematic view of an air conditioner according to an embodiment of the present utility model.

Reference numerals:

the air conditioner 1000 is provided with a plurality of air-conditioning units,

the electric control part 100, the housing 200, the compressor 300, the first heat exchanger 400, the second heat exchanger 500, the air supply fan 600, the air exhaust fan 700,

an electric control box 10, an inner shell 11, a heat dissipation part 101, an outer shell 12,

a circuit assembly 20, a first heat generating device 21, a first inductive device 211, a first capacitive device 212, a second heat generating device 22, a circuit board 23,

the first heat dissipation structure 30, the first adhesive layer 31, the second adhesive layer 32,

the second heat dissipation structure 40, the heat pipe 41, the first heat dissipation element 42, the heat conduction plate 43,

the third heat dissipation structure 50, the second heat dissipation sheet 51, the connecting plate 52.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

Hereinafter, referring to fig. 1 to 3, an electronic control unit 100 and an air conditioner 1000 according to an embodiment of the present utility model will be described in detail.

As shown in fig. 1 to 3, an electronic control unit 100 according to an embodiment of the first aspect of the present utility model includes: the electronic control box 10, the circuit assembly 20 and the first heat dissipation structure 30.

The electronic control box 10 includes a heat dissipation portion 101, the circuit assembly 20 includes a circuit board 23 and a first heat-generating device 21 disposed on the circuit board 23, the first heat-generating device 21 is disposed in the electronic control box 10, one end of the first heat-generating device 21, which is far away from the circuit board 23, corresponds to the heat dissipation portion 101, the first heat dissipation structure 30 includes a heat-conducting adhesive, the heat-conducting adhesive is disposed between the first heat-generating device 21 and the heat dissipation portion 101 and includes a first adhesive layer 31 and a second adhesive layer 32, the first adhesive layer 31 is disposed on one side, far away from the heat dissipation portion 101, of the second adhesive layer 32, the thermal expansion coefficient of the first adhesive layer 31 is greater than that of the second adhesive layer 32, and the thermal expansion coefficient of the second adhesive layer 32 is greater than that of the first adhesive layer 31.

Illustratively, the first heat-generating device 21 may be an inductive device such as an inductance or a capacitive device such as a capacitance, the first heat-generating device 21 is disposed in the electronic control box 10, the first heat-dissipating structure 30 includes a heat-conducting adhesive, and the electronic control box 10 is provided with a heat-dissipating portion 101, and the heat-conducting adhesive is disposed between the heat-dissipating portion 101 and the first heat-generating device 21, so that heat of the first heat-generating device 21 can be quickly transferred to the heat-dissipating portion 101, and heat-dissipating efficiency of the first heat-generating device 21 is improved.

Therefore, the heat generated by the first heat-generating device 21 can be led out to the electric control box 10 through the heat-conducting glue, and the heat is radiated through the electric control box 10, so that the heat radiation of the first heat-generating device 21 is realized, the working temperature of the first heat-generating device 21 is effectively reduced, the working stability of the first heat-generating device 21 is improved, and the use safety and the working stability of the electric control component 100 are improved.

In the embodiment of the utility model, the first adhesive layer 31 is located at one side of the second adhesive layer 32 away from the heat dissipation portion 101, and the thermal expansion coefficient of the first adhesive layer 31 is greater than that of the second adhesive layer 32, and in the heating process, both the first adhesive layer 31 and the second adhesive layer 32 are thermally expanded, wherein the first adhesive layer 31 with the greater thermal expansion coefficient can push the second adhesive layer 32 to be adhered to the heat dissipation portion 101 more tightly, and the second adhesive layer 32 with the smaller thermal expansion coefficient has higher heat conduction efficiency, so that the heat conduction efficiency of the second adhesive layer 32 and the heat dissipation portion 101 can be improved, so that the heat of the first heat generating device 21 can be transferred to the heat dissipation portion 101 more efficiently.

According to the electric control component 100 of the embodiment of the utility model, by arranging the first heat dissipation structure 30, the heat generated by the first heat generating device 21 inside the electric control box 10 is quickly and timely led out to the electric control box 10, the internal temperature of the electric control box 10 is reduced, the working environment temperature is improved, the working environment temperature of the components inside the electric control box 10 including the first heat generating device 21 is lower, the working stability and the use safety of the electric control component 100 are improved, and the stability of the first heat dissipation structure 30 is higher, so that the heat dissipation effect is stable and reliable.

The electronic control component 100 is applied to the kitchen air conditioner 1000, the indoor heat exchange portion and the outdoor heat exchange portion of the kitchen air conditioner 1000 are integrally arranged and are arranged above the kitchen ceiling, the control components of the indoor heat exchange portion and the control components of the outdoor heat exchange portion are integrated in the electronic control component 100, so that the electric power of the components in the electronic control component 100 is high, the heating value is large, the heat dissipation is poor, and the special use environment of the electronic control component 100 is considered. In this regard, by arranging the first heat dissipation structure 30, the embodiment of the present utility model can timely export the heat inside the electronic control box 10, especially the heat generated by the first heat generating device 21 with relatively large heat productivity, to the outside of the electronic control box 10, so as to effectively reduce the temperature inside the electronic control box 10 and improve the working stability and the use safety of the electronic control component 100.

Illustratively, the heat-conducting glue and the first heat-generating device 21 may be integrally disposed and mounted on the circuit board 23, so that the difficulty of disposing the heat-conducting glue may be simplified and the assembly efficiency may be improved. Of course, the present utility model is not limited thereto, and for example, in other embodiments, the heat conductive adhesive may be integrated with the electronic control box 10.

According to some embodiments of the present utility model, the heat-conducting glue is heat-conducting silica gel and is injection molded on the first heat-generating device 21, so that the integrated arrangement of the heat-conducting glue and the first heat-generating device 21 can be realized. For example, when the first heat generating device 21 includes an inductor, the inductor is integrally provided with a thermally conductive silicone gel poured thereon to construct a composite inductor.

Thus, on one hand, the heat dissipation effect of the heat conduction silica gel is better, and the heat dissipation efficiency and the heat dissipation effect of the first heat dissipation structure 30 on the first heat generation device 21 can be improved; on the other hand, the heat conduction silica gel can be poured and molded on the first heating device 21, the assembly difficulty between the heat conduction silica gel and the first heating device 21 is lower, and after the assembly is completed, the connection stability of the heat conduction silica gel and the first heating device 21 is higher, and the heat dissipation stability and the reliability are higher.

Of course, the present utility model is not limited thereto, and for example, the heat-conducting glue and the first heat-generating device 21 may be integrally disposed by bonding, clamping or other fixing connection methods, which will not be described herein.

According to some embodiments of the present utility model, as shown in fig. 1, the cross-sectional area of the heat conductive paste gradually increases in a direction from the second paste layer 32 to the first paste layer 31. Therefore, the first heat generating device 21 contacts with the first adhesive layer 31 more fully and stably, and the first adhesive layer 31 with a larger thermal expansion coefficient can absorb heat more to more effectively push the second adhesive layer 32 to be attached to the heat dissipation portion 101 more tightly, so as to further improve the heat conduction efficiency of the second adhesive layer 32 and the heat dissipation portion 101, and transfer the heat of the first heat generating device 21 to the heat dissipation portion 101 more efficiently.

Of course, the present utility model is not limited thereto, and for example, the heat conductive adhesive may be provided in a form in which the cross-sectional area is constant in the direction from the second adhesive layer 32 to the first adhesive layer 31 (for example, as shown in fig. 2), and the like, and will not be described herein.

In some embodiments, the first heat generating device 21 includes a first inductive device 211 and a first capacitive device 212, and a heat conductive adhesive is separately provided between the first inductive device 211 and the heat sink 101, and between the first capacitive device 212 and the heat sink 101, respectively. Namely, a heat-conducting glue (denoted as a first heat-conducting glue) is disposed between the first inductive device 211 and the heat dissipation portion 101, and a heat-conducting glue (denoted as a second heat-conducting glue) is also disposed between the first capacitive device 212 and the heat dissipation portion 101, and the two heat-conducting glues (namely, the first heat-conducting glue and the second heat-conducting glue) are independent from each other and are not the same.

Specifically, the inductive devices within the electronic control box 10 may be one or more, at least one of which is the first inductive device 211. For example, the inductive device with higher heat productivity may be the first inductive device 211, and the heat dissipation portion 101 may be disposed at a position corresponding to the first inductive device 211, for example, in some examples, the first inductive device 211 may be connected to strong electricity, for example, PFC inductor (where PFC is an abbreviation of Power Factor Correction, power factor correction) or common mode inductor, etc., the heat dissipation is higher, and the first inductive device 211 has a relatively higher height, the distal end (i.e. the end far from the circuit board 23) of the first inductive device 211 is usually the position where the first inductive device 211 is closest to the electronic control box 10, and the heat dissipation portion 101 is disposed above the first inductive device 211, and a heat conducting glue is disposed between the first inductive device 211 and the heat dissipation portion 101, so that the heat dissipation of the first inductive device 211 to the electronic control box 10 is facilitated.

When the first inductive devices 211 are plural, at least two first inductive devices 211 correspond to the same heat dissipation portion 101, or each first inductive device 211 corresponds to a different heat dissipation portion 101, preferably, each first inductive device 211 corresponds to one heat dissipation portion 101, so that each first inductive device 211 can have a larger heat radiation area, and mutual heat crosstalk between the plural first inductive devices 211 can be reduced.

Similarly, the number of capacitive devices within the electronic control box 10 may be one or more, at least one of which is the first capacitive device 212. As in some examples, the first capacitive device 212 is a plurality of capacitive devices that generate relatively large heat among all the capacitive devices, for example, the first capacitive device 212 is a high-voltage power Jie Dianrong that generates relatively large heat, etc., the heat dissipation portion 101 is provided corresponding to the first capacitive device 212, and a heat conductive adhesive is provided between the first capacitive device 212 and the heat dissipation portion 101, so that the first capacitive device 212 may have a large heat-radiating area.

When the number of the first capacitive devices 212 is one or more, at least two first capacitive devices 212 correspond to the same heat dissipation part 101, or each first capacitive device 212 corresponds to a different heat dissipation part 101, preferably, each first capacitive device 212 corresponds to one heat dissipation part 101, so that each first capacitive device 212 can have a larger heat radiation area, and mutual heat crosstalk between the plurality of first capacitive devices 212 can be reduced.

In addition, heat conductive glue is separately disposed between the first capacitive device 212 and the heat dissipation portion 101 and between the first inductive device 211 and the heat dissipation portion 101, so as to respectively realize heat dissipation of the first inductive device 211 and the first capacitive device 212, respectively improve heat dissipation effects of the first inductive device 211 and the first capacitive device 212, and respectively improve operation stability and reliability of the first inductive device 211 and the first capacitive device 212.

According to some embodiments of the present utility model, a heat-conducting silicone grease is disposed between the heat-conducting adhesive and the heat-dissipating portion 101, and the heat-conducting silicone grease is disposed on the heat-dissipating portion 101 and/or the second adhesive layer 32. For example, the heat conductive silicone grease may be coated on a side surface of the heat dissipation portion 101 facing the heat conductive paste, and the heat conductive silicone grease may also be coated on a side surface of the second adhesive layer 32 facing the heat dissipation portion 101.

Therefore, by arranging the heat-conducting silicone grease, the adhesion and heat conduction effect between the second adhesive layer 32 and the heat dissipation part 101 are better, the gap between the second adhesive layer 32 and the heat dissipation part 101 is reduced, and the heat conduction resistance can be reduced, so that the heat dissipation effect is improved.

As shown in fig. 1, in some embodiments, the electronic control component 100 further includes a second heat dissipation structure 40, where the second heat dissipation structure 40 is located outside the electronic control box 10 and is in heat transfer fit with the heat dissipation part 101. Therefore, by arranging the heat dissipation part 101, the heat generated by the first heat generating device 21 can be conducted to the electric control box 10, and by arranging the second heat dissipation structure 40, the heat dissipation to the electric control box 10, especially the area where the heat dissipation part 101 is located, can be realized, so that the heat dissipation to the electric control box 10 and the first heat generating device 21 can be realized through the first heat dissipation structure 30 and the second heat dissipation structure 40, the heat dissipation efficiency can be improved, and the temperature of the electric control component 100 can be reduced more quickly.

As shown in fig. 1 and 2, the second heat dissipating structure 40 includes a heat pipe 41 and a first heat sink 42, a first portion of the heat pipe 41 being in heat transfer engagement with the heat sink 101 (i.e., direct or indirect heat transfer), and a second portion of the heat pipe 41 being in heat transfer engagement with the first heat sink 42 (i.e., direct or indirect heat transfer).

Specifically, the heat pipe 41 is provided with a phase change material, the heat of the heat dissipation part 101 is conducted to the first portion of the heat pipe 41 (at this time, the phase change material in the first portion absorbs heat, for example, the phase change material changes from a liquid state to a gas state, when the water absorbs heat), and then is transferred from the first portion of the heat pipe 41 to the second portion (at this time, the phase change material flowing to the second portion releases heat, for example, the phase change material changes from a gas state to a liquid state when the water condenses, when the water absorbs heat), and then the second portion transfers the heat to the first heat dissipation element 42 to dissipate the heat from the first heat dissipation element 42.

It can be understood that the heat generated by the components inside the electronic control box 10 heats the electronic control box 10, so that the heat of the electronic control box 10 is higher, the heat of the electronic control box 10 is transferred to the first heat dissipation part 42 through the heat pipe 41, and the temperature of the electronic control box 10 is reduced through the heat dissipation of the first heat dissipation part 42, so that the electronic control box 10 can absorb more heat inside the electronic control box 10, the internal temperature of the electronic control box 10 is indirectly reduced, the internal temperature of the electronic control box 10 is reduced, so that the temperature of the components can be reduced, the use safety of the electronic control component 100 is improved, the second heat dissipation structure 40 is matched with the heat dissipation part 101 in a heat transfer manner, the heat dissipation part 101 is in heat transfer with the first heat generation device 21 through the first heat dissipation structure 30, so that the working environment temperature of the components can be effectively reduced from two directions, and the heat dissipation efficiency is further improved.

Further, the second heat dissipation structure 40 may further include a heat conducting plate 43, where the heat conducting plate 43 covers the heat dissipation portion 101, and the first portion of the heat pipe 41 is embedded in the heat conducting plate 43 to transfer heat with the heat dissipation portion 101 through the heat conducting plate 43.

Therefore, the heat transfer and matching efficiency of the first part of the heat pipe 41 and the heat dissipation part 101 can be improved through the contact heat exchange between the heat conduction plate 43 and the electric control box 10, so that the heat of the electric control box 10 can be more intensively transferred to the heat pipe 41, the heat of the heat conduction plate 43 is further conducted to the first heat dissipation piece 42 through the heat conduction pipe 41, the efficient heat dissipation is realized through the first heat dissipation piece 42, the temperature of the first heat generation device 21 and the temperature of the electric control box 10 are effectively reduced, and the working stability and reliability of the first heat generation device 21 are improved.

Illustratively, a heat-conducting silicone grease may be further coated between the heat-conducting plate 43 and the electronic control box 10, so that the heat-conducting plate 43 can more efficiently conduct out the heat generated by the first heat-generating device 21 and the heat of the electronic control box 10, thereby further improving the heat dissipation efficiency.

The first heat dissipation element 42 includes a plurality of first heat dissipation fins disposed at intervals, a ventilation gap is formed between two adjacent first heat dissipation fins, and the heat pipe 41 penetrates through the plurality of first heat dissipation fins.

That is, the first heat sink 42 is configured as a heat sink fin, each sub-fin of the heat sink fin is formed as one first heat sink fin, and a gap between adjacent sub-fins is formed as a ventilation gap, so that the heat sink area of the first heat sink 42 is larger, the heat sink efficiency is higher, the heat sink effect is better, and the heat sink efficiency of the first heat sink structure 30 can be improved, and the heat sink effect can be improved.

It will be appreciated that the first heat sink 42 is disposed spaced apart from the electronic control cartridge 10 and that the heat pipe 41 extends in a straight line segment (see fig. 1) and/or a curved line segment (see fig. 2) from the first portion to the second portion.

Therefore, by spacing the first heat dissipation element 42 from the electronic control box 10, the setting position of the first heat dissipation element 42 can be flexibly adjusted to facilitate improving the heat dissipation efficiency of the first heat dissipation element 42, and the extending shape from the first portion to the second portion can be formed into a straight line segment and/or a curved line segment, so that the second heat dissipation structure 40 and surrounding components can be avoided, or the first heat dissipation element 42 can be extended to a position with good heat dissipation, for example, in an air duct with ventilation, so that the heat dissipation effect of the second heat dissipation structure 40 is better, and the heat dissipation efficiency is higher.

For example, the electric control component 100 is installed in an air duct of the air conditioner 1000, because of space limitation, the distance between the electric control component 100 and other structural components in the air conditioner 1000 is small, wind resistance of air flow between the structural components and gaps of the electric control component 100 is large, so that air quantity flowing through the surface of the electric control component 100 is small, and heat dissipation of the electric control component 100 is difficult. At this time, when the heat pipe 41 is elongated or bent, the first heat dissipation element 42 at the cold end of the heat pipe 41 can be moved into a position with better ventilation in the air conditioner 1000, so as to improve the heat dissipation effect of the electronic control unit 100.

For example, the electronic control part 100 is installed in the air duct of the air conditioner 1000, and because of space limitation, the electronic control part 100 is placed close to the compressor or the heat exchanger, so that the temperature of the air flow around the electronic control part 100 is high, and heat dissipation of the electronic control part 100 is difficult. At this time, when the heat pipe 41 is elongated or bent, the first heat dissipation element 42 at the cold end of the heat pipe 41 can be transferred to the position with lower air flow temperature in the air conditioner 1000, so as to improve the heat dissipation effect of the electronic control unit 100.

For example, because of the space limitation of the air duct, the electric control part 100 cannot be placed in the air duct of the air conditioner 1000, there is no stable heat dissipation air flow around the electric control part 100, and heat dissipation of the electric control part 100 is difficult. At this time, the heat pipe 41 is elongated or bent, the first heat dissipation element 42 at the cold end of the heat pipe 41 is transferred to the air duct position with stable air flow and low temperature, and the heat dissipation effect of the electronic control component 100 is improved.

Illustratively, the heat pipe 41 may be a closed straight pipe section, wherein one end of the straight pipe section is a first portion and is embedded in the heat conducting plate 43, and the other end of the straight pipe section is a second portion and is connected to the first heat dissipating member 42, or the heat pipe 41 may be configured as a closed curved pipe, for example, the curved pipe is in a serpentine coiled form, or a circular surrounding form, etc., which will not be described herein.

As shown in fig. 1 and 2, according to some embodiments of the present utility model, an electronic control box 10 includes an inner case 11 and an outer case 12 covering the outer case 11, the inner case 11 being an insulating case and having an opening formed at a heat radiating portion 101, the outer case 12 being a metal case and shielding the opening.

Specifically, an opening is formed in the inner shell 11 corresponding to the first heat-generating device 21, and the position where the outer shell 12 covers the closed opening is formed as a heat dissipation part 101, so that heat generated by the first heat-generating device 21 is more easily conducted to the electronic control box 10, and auxiliary heat dissipation of the first heat-generating device 21 is realized through the electronic control box 10, so that the temperature of the first heat-generating device 21 is effectively reduced, and the working stability and reliability of the first heat-generating device 21 are improved.

It can be appreciated that the outer shell 12 is made of a metal shell, so that the structural reliability and fire resistance of the electric control box 10 can be ensured, the inner shell 11 can be used for playing a protective role such as insulation and flame retardance, insulating materials such as plastics can be selected, and the opening on the inner shell 11 is favorable for the first heating device 21 to radiate heat to the outer shell 12, so that the heat radiation and heat dissipation efficiency is improved.

Referring to fig. 1 and 2, in some embodiments, the circuit assembly 20 further includes a second heat generating device 22 disposed on the circuit board 23 and located within the electronic control box 10, and the electronic control unit 100 further includes a third heat dissipating structure 50 for dissipating heat from the second heat generating device 22, where the third heat dissipating structure 50 includes a plurality of second heat dissipating fins 51 disposed at intervals, and at least a portion of each of the second heat dissipating fins 51 is located outside the electronic control box 10.

By way of example, the second heat generating device 22 may be a power device that generates relatively large heat, such as a compressor IPM (IPM is an abbreviation of Intelligent Power Module, i.e., a smart power module), a blower IPM (IPM is an abbreviation of Intelligent Power Module, i.e., a smart power module), an IGBT (i.e., an abbreviation of Insulated Gate Bipolar Transistor, an insulated gate bipolar transistor), and a bridge stack.

Therefore, the second heat-generating device 22 can be directly subjected to heat exchange through the second heat-radiating fins 51, and the heat generated by the second heat-generating device 22 is absorbed through the second heat-radiating fins 51 and radiated to the outside of the electronic control box 10, so that the heat of the second heat-generating device 22 is reduced. And, a ventilation gap can be formed between the adjacent second cooling fins 51, which is beneficial to improving the cooling effect of the third cooling structure 50.

Illustratively, the third heat dissipating structure 50 further includes a connection plate 52, the connection plate 52 being located within the electronic control box 10 and covering the second heat generating device 22, the second heat sink 51 being connected to the connection plate 52.

Wherein, the connection plate 52 and the second heating device 22 may be in direct heat transfer fit, or may be provided with heat conductive silicone grease therebetween and/or a temperature equalizing plate to indirectly transfer fit, and the material of the temperature equalizing plate and the material of the connection plate 52 may be the same or different, in general, the connection plate 52 is of a fixed specification, and the temperature equalizing plate may be set to different shapes and sizes according to different combinations and arrangements of the second heating device 22 so as to cover as many second heating devices 22 as possible, and the temperature equalizing plate collects heat and transfers the heat to the connection plate 52.

Further, the first heat generating device 21 includes a first inductive device 211 located on the same side of the circuit board 23 as the second heat generating device 22, the second heat generating device 22 has a height smaller than that of the first inductive device 211 in the thickness direction of the circuit board 23 (for example, in the up-down direction shown in fig. 1), the electronic control box 10 includes a first wall portion located on a side of the first inductive device 211 away from the circuit board 23, a portion of the first wall portion corresponding to the first inductive device 211 is a first wall portion, a portion of the first wall portion corresponding to the second heat generating device 22 is a second wall portion, and a distance H1 between the first wall portion and the circuit board 23 is larger than a distance H2 between the second wall portion and the circuit board 23.

Specifically, the height of the second heat generating device 22 is smaller than that of the first inductive device 211, and the electronic control box 10 may correspondingly provide a first wall portion to form a protruding portion, where the protruding portion matches with the first inductive device 211, so that on one hand, the heat radiation area of the first inductive device 211 may be increased, and the heat radiation efficiency may be improved; on the other hand, the protruding portion can cover the heat dissipation of the first inductive device 211, so that the heat flowing to other positions can be reduced to cause adverse heat influence on other components on the circuit board 23, meanwhile, the non-protruding portion of the electronic control box 10 can save materials, and is closer to other components on the circuit board 23, such as the second heating device 22, so that heat radiation and heat dissipation of other components, such as the second heating device 22, are facilitated.

According to some embodiments of the present utility model, the electronic control box 10 is a closed box body.

Specifically, based on some use environments, such as a humid environment, an oil pollution environment, a dust environment and the like, the electronic control box 10 is arranged to be a closed box body, so that damage to components in the electronic control box 10 due to the influence of environmental factors can be avoided, the electronic control box 10 is arranged to be a closed box body, foreign matters and the like can be prevented from entering the electronic control box 10, and the inductive devices are stored in the electronic control box 10, so that the foreign matters can be prevented from contacting the inductive devices, adverse influence on the inductive devices is avoided, and the working reliability of the inductive devices can be improved.

It should be noted that "closed" as used herein is to be understood in a broad sense, that is, the electrical control box 10 may be understood as closed without a heat dissipation air flow channel (e.g., a heat dissipation hole) or the like.

It should be noted that, the heat dissipation efficiency of the closed environment is lower, so that the heat accumulation of the internal environment of the electronic control box 10 can be aggravated, the heat dissipation efficiency of the first heat generating device 21 is improved by arranging the first heat dissipation structure 30 in the electronic control box 10, the heat dissipation efficiency of the first heat generating device 21 and the electronic control box 10 is improved by arranging the second heat dissipation structure 40 outside the electronic control box 10, and the heat dissipation efficiency of the second heat generating device is improved by arranging the third heat dissipation structure 50, so that the heat dissipation efficiency and the heat dissipation effect of the electronic control component 100 are effectively improved, the working environment temperature of the electronic control component 100 is reduced, and the use safety and the working reliability of the electronic control component 100 are improved.

In other words, the utility model sets different heat dissipation structures for components with different electric powers in the electric control box 10, and has better heat dissipation effect.

As shown in fig. 3, an air conditioner 1000 according to an embodiment of the second aspect of the present utility model includes a casing 200, a compressor 300, a first heat exchanger 400, a second heat exchanger 500, an air supply fan 600, an air exhaust fan 700, and the electronic control part 100 in the above embodiment.

Wherein, the shell 200 is internally provided with an air supply channel and an air exhaust channel which are isolated from each other, the first heat exchanger 400 is arranged in the air supply channel, the second heat exchanger 500 is arranged in the air exhaust channel, the first heat exchanger 400 and the second heat exchanger 500 are both connected with the compressor 300 and respectively used as a condenser and an evaporator, the inlet of the air supply fan 600 is communicated with the air supply channel, the outlet of the air supply fan 600 is communicated to the indoor side, the inlet of the air exhaust fan 700 is communicated with the air exhaust channel, and the outlet of the air exhaust fan 700 is communicated to the outdoor side.

The electric control component 100 can control the compressor 300, the air supply fan 600 and the air exhaust fan 700 at the same time, the electric power of components integrated in the electric control component 100 is higher, the heating value is larger, and based on the use environment requirement of the air conditioner 1000, the embodiment of the utility model can adopt the closed electric control box 10, and when the electric control component 100 of the embodiment of the utility model is applied to the air conditioner 1000, the working temperature of the electric control component 100 can be effectively improved, so that the working stability of the air conditioner 1000 is higher.

Further, in some embodiments, the electric control component 100 may be disposed in an air exhaust duct, and an outlet of the air exhaust duct is communicated with an outdoor side, so that heat generated by the electric control component 100 may be directly exhausted to the outdoor side, and heat generated by the electric control component 100 is prevented from flowing to the indoor side under the action of air flow, and from affecting a temperature regulation effect of the air conditioner 1000, so as to ensure stability and reliability of temperature regulation of the air conditioner 1000.

The present utility model is not limited to this, and for example, the electronic control unit 100 may be provided outside the housing 200. Note that, the installation position of the blower 600 is not limited, and may be located outside the housing 200 or may be located inside the housing 200; the location of the exhaust fan 700 is not limited, and may be located outside the housing 200 or inside the housing 200, and will not be described here.

Further, in some embodiments, the refrigerant in the compressor 300 includes carbon dioxide, and in particular, for a kitchen air conditioner, the refrigerant using carbon dioxide as the refrigerant is safer, but when the compressor works, the electric power of the electric control component 100 matched with the compressor is correspondingly increased compared with that of a traditional compressor, the electric power is increased, and the heat generation of the heating device is higher in a closed environment.

It should be noted that, the air conditioner 1000 according to the embodiment of the present utility model may be formed as an integrated air conditioner, and is suitable for kitchen space and the closed structure of the electronic control box 10, so as to avoid damage to the electronic control component 100 caused by greasy dirt, water vapor, etc. in the kitchen space, and the first heat dissipation structure 30, the second heat dissipation structure 40, the third heat dissipation structure 50, etc. in the electronic control component 100, so that the electronic control component 100 still has stable and efficient heat dissipation effect under the influence of adverse factors such as kitchen high temperature environment, accumulation of working heat of high-power components, closed space, etc. to improve the working stability and use safety of the electronic control component 100.

It should be noted that the electric control unit 100 according to the embodiment of the present utility model is not only used for the air conditioner 100, but also can be used for other devices requiring electric control, and the description thereof is omitted herein.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (16)

1. An electrically controlled component, comprising:

the electronic control box comprises a heat dissipation part;

the circuit assembly comprises a circuit board and a first heating device arranged on the circuit board, the first heating device is arranged in the electric control box, and one end, far away from the circuit board, of the first heating device corresponds to the heat dissipation part;

the first heat dissipation structure comprises a heat conduction adhesive, the heat conduction adhesive is arranged between the first heat-emitting device and the heat dissipation part and comprises a first adhesive layer and a second adhesive layer, the first adhesive layer is positioned on one side, far away from the heat dissipation part, of the second adhesive layer, the thermal expansion coefficient of the first adhesive layer is larger than that of the second adhesive layer, and the thermal expansion coefficient of the second adhesive layer is larger than that of the first adhesive layer.

2. The electrical control component of claim 1, wherein the thermally conductive gel is thermally conductive silicone and is injection molded over the first heat generating device.

3. The electronic control of claim 1, wherein the thermally conductive paste has a cross-sectional area that gradually increases in a direction from the second paste layer to the first paste layer.

4. The electronic control component of claim 1, wherein the first heat generating device comprises a first inductive device and a first capacitive device, and the heat conducting glue is separately provided between the first inductive device and the heat dissipating portion, and between the first capacitive device and the heat dissipating portion, respectively.

5. The electronic control component according to claim 1, wherein a heat-conducting silicone grease is arranged between the heat-conducting glue and the heat-radiating part, and the heat-conducting silicone grease is arranged on the heat-radiating part and/or the second glue layer.

6. The electronic control component of claim 1, further comprising a second heat dissipating structure located outside of the electronic control box and in heat transfer engagement with the heat sink.

7. The electronic control of claim 6, wherein the second heat dissipating structure comprises a heat pipe and a first heat sink, a first portion of the heat pipe in heat transfer engagement with the heat sink, a second portion of the heat pipe in heat transfer engagement with the first heat sink, the first heat sink comprising a plurality of first heat sinks disposed in spaced apart relation.

8. The electronic control of claim 7, wherein the second heat dissipating structure further comprises a heat conducting plate, the heat conducting plate covering the heat dissipating portion, the first portion of the heat pipe being embedded in the heat conducting plate to transfer heat with the heat dissipating portion through the heat conducting plate.

9. An electrically controlled component according to claim 7, wherein the first heat sink is spaced apart from the electrical control box and the heat pipe extends in a straight and/or curved line from the first portion to the second portion.

10. The electronic control according to claim 1, wherein the electronic control box includes an inner-layer case and an outer-layer case covering the outer-layer case, the inner-layer case being an insulating case and an opening being formed at the heat radiating portion, the outer-layer case being a metal case and shielding the opening.

11. The electronic control component of claim 1, wherein the circuit assembly further comprises a second heat generating device disposed on the circuit board and within the electronic control box, the electronic control component further comprising a third heat dissipating structure for dissipating heat from the second heat generating device, the third heat dissipating structure comprising a plurality of second heat dissipating fins disposed in spaced apart relation, at least a portion of each of the second heat dissipating fins being located outside the electronic control box.

12. The electronic control of claim 11, wherein the third heat dissipating structure further comprises a connecting plate located within the electronic control box and covering the second heat generating device, the second heat sink being connected to the connecting plate.

13. The electronic control component of claim 11, wherein the first heat generating device includes a first inductive device on a same side of the circuit board as the second heat generating device, a height of the second heat generating device is smaller than a height of the first inductive device in a thickness direction of the circuit board, the electronic control box includes a first wall portion on a side of the first inductive device away from the circuit board, a portion of the first wall portion corresponding to the first inductive device is a first wall portion, a portion of the first wall portion corresponding to the second heat generating device is a second wall portion, and a distance between the first wall portion and the circuit board is larger than a distance between the second wall portion and the circuit board.

14. The electrical control component of any one of claims 1-13, wherein the electrical control box is a closed box.

15. An air conditioner is characterized by comprising a shell, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan, an air exhaust fan and an electric control component according to any one of claims 1-14, wherein the shell is internally provided with an air supply channel and an air exhaust channel which are mutually isolated, the first heat exchanger is arranged in the air supply channel, the second heat exchanger is arranged in the air exhaust channel, the first heat exchanger and the second heat exchanger are both connected with the compressor and respectively used as a condenser and an evaporator, an inlet of the air supply fan is communicated with the air supply channel, an outlet of the air supply fan is communicated to the indoor side, and an inlet of the air exhaust fan is communicated with the air exhaust channel and an outlet of the air exhaust fan is communicated to the outdoor side.

16. The air conditioner of claim 15, wherein the electric control part is provided in the air discharge duct; and/or the refrigerant in the compressor comprises carbon dioxide.