CN220524327U - 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: the electric control box comprises a first box wall, the circuit assembly is arranged in the electric control box and comprises a circuit board and heating devices, the heating devices are arranged on one side, close to the first box wall, of the circuit board, protruding portions protruding towards the direction away from the circuit board are arranged on the first box wall, containing spaces for containing the heating devices are formed on one side, facing the circuit board, of the protruding portions, protruding heights of the protruding portions are different, the heating devices are different in height, the two heating devices are different in height, and the two heating devices are different in protruding height, extend into protruding portions with relatively high protruding heights, and relatively smaller heating devices extend into protruding portions with relatively smaller protruding heights. Therefore, the heat dissipation effect of the electric control component can be improved, and the working stability is improved.

Description

Electric control part and air conditioner

Technical Field

The utility model relates to the 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 adopting the electric control component.

An electronic control unit according to an embodiment of the first aspect of the present utility model includes: the electric control box comprises a first box wall, the circuit assembly is arranged in the electric control box and comprises a circuit board and a heating device, the heating device is arranged on one side, close to the first box wall, of the circuit board, a protruding portion protruding towards the direction away from the circuit board is arranged on the first box wall, an accommodating space for accommodating the heating device is formed on one side, facing towards the circuit board, of the protruding portion, the protruding portions are multiple and at least two protruding portions are different in protruding height, the heating device is multiple and at least two heating devices are different in height, the two heating devices are different in protruding height, the two heating devices are relatively larger in height, extend into the protruding portion with relatively higher protruding height, and the heating device is relatively smaller in height, and extends into the protruding portion with relatively smaller protruding height.

According to the electric control component provided by the embodiment of the utility model, the plurality of protruding parts are arranged, and the heating devices with different heights are arranged in positive correlation and correspond to the protruding parts with different heights, so that on one hand, the distances between the plurality of heating devices and the first box wall are lower, the heat radiation and heat dissipation of the heating devices can be improved, the heat accumulation is improved, and the heat dissipation effect is improved; on the other hand, the heat channeling between adjacent heating devices can be improved, so that the heat dissipation efficiency is improved, and the working stability of the electric control component is higher.

According to some embodiments of the utility model, the plurality of protruding parts includes a first protruding part, the protruding height of the first protruding part is higher than the protruding height of at least one other protruding part, the heat generating device includes a first heat generating device protruding into the first protruding part, and a first heat dissipating structure for heat conduction is provided between the first heat generating device and the first protruding part.

Further, the first heat dissipation structure is made of heat-conducting silica gel and comprises a first adhesive layer and a second adhesive layer, the first adhesive layer is located on one side, far away from the first box wall, 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.

Further, the cross-sectional area of the first adhesive layer gradually increases in a direction from the first case wall to the circuit board.

Further, a heat-conducting silicone grease is arranged between the second adhesive layer and the first box wall.

In some embodiments, the electronic control box includes an inner shell and an outer shell covering the outer shell, the inner shell is an insulating shell and a first opening is formed at an end of the first protruding portion away from the circuit board, and the outer shell is a metal shell and covers and closes the first opening.

According to some embodiments of the utility model, the plurality of protruding parts include a second protruding part having a protruding height lower than that of at least one remaining protruding part, the heat generating device includes a second heat generating device protruding into the second protruding part, the electronic control box includes an inner case and an outer case covering the outer case, the inner case is an insulating case and a second opening is formed at an end of the second protruding part away from the circuit board, and the outer case is a metal case and covers the second opening.

Further, a second heat dissipation structure for conducting heat is arranged between the second heating device and the second protruding portion.

In some embodiments, the protrusions cover at least 2/3 of the height of the corresponding heat generating device.

According to some embodiments of the utility model, the heat generating device further comprises a third heat generating device, the height of the third heat generating device is lower than the height of the heat generating device corresponding to the protrusion, a third heat dissipation structure for heat conduction is arranged between the third heat generating device and the first box wall, and the third heat dissipation structure covers the third heat generating device and comprises a plurality of first heat dissipation fins arranged at intervals.

Further, the first box wall is provided with a bulge part protruding towards the direction away from the circuit board, and one side of the bulge part towards the circuit board forms an avoidance space for accommodating the third heat dissipation structure.

Further, the electric control box comprises an inner shell and an outer shell covering the outer side of the inner shell, wherein the inner shell is an insulating shell, a third opening is formed at the end part, far away from the circuit board, of the bulge part, and the outer shell is a metal shell and covers and seals the third opening.

According to some embodiments of the utility model, the heat generating device further comprises a fourth heat generating device, the height of the fourth heat generating device is lower than the height of the heat generating device corresponding to the protruding portion, the electric control component further comprises a fourth heat dissipating structure, a part of the fourth heat dissipating structure is located in the electric control box and covers the fourth heat generating device, and the rest of the fourth heat dissipating structure extends out of the electric control box and comprises a plurality of second heat dissipating fins arranged at intervals.

In some embodiments, 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 diagram illustrating the cooperation of a first heat dissipating structure and a first heat generating device according to an embodiment of the present utility model;

fig. 4 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,

the electronic control box 10, the inner shell 11, the first opening 111, the second opening 112, the third opening 113, the outer shell 12, the projection 13, the first projection 131, the second projection 132, the bulge 14, the first box wall 101,

a circuit assembly 20, a circuit board 21, a first heat generating device 22, a second heat generating device 23, a third heat generating device 24, a fourth heat generating device 25,

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

the third heat dissipation structure 40, the first heat dissipation fins 41,

the fourth heat dissipation structure 50, the second heat dissipation fins 51,

heat dissipating silicone grease 60.

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 4, 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 and 2, an electronic control unit 100 according to an embodiment of the first aspect of the present utility model includes: an electrical control box 10 and a circuit assembly 20.

Wherein, automatically controlled box 10 includes first box wall 101, and circuit subassembly 20 locates in the automatically controlled box 10 and include circuit board 21 and the device that generates heat, and the device that generates heat is located the one side that is close to first box wall 101 of circuit board 21, has the bulge 13 that the direction protrusion was kept away from circuit board 21 on the first box wall 101, and the one side of bulge 13 towards circuit board 21 forms the accommodation space that is used for holding the device that generates heat.

Specifically, the first case wall 101 is located on a side of the heat generating device away from the circuit board 21, a part of the first case wall 101 protrudes toward a direction away from the circuit board 21 to form a protruding portion 13, an inner side of the protruding portion 13 (i.e., toward some of the inside of the electronic control case 10) forms an accommodating space, and the heat generating device may be at least partially disposed in the accommodating space.

Thus, on one hand, the heat radiation area of the heating device can be increased, and the heat radiation efficiency is improved; on the other hand, the protruding part 13 can cover the heat dissipation of the heating device, so that the heat generated by the heating device is reduced to flow to other positions to cause adverse heat influence on other components on the circuit board 21, meanwhile, the non-protruding part of the electronic control box 10 can save materials, and the non-protruding part of the first box wall 101 is closer to other components with lower height on the circuit board 21, so that the heat radiation and heat dissipation of other components are facilitated.

It will be appreciated that the plurality of the protruding portions 13 and the at least two protruding portions 13 are different in protruding height, the plurality of the heat generating devices and the at least two heat generating devices are different in height, wherein the two heat generating devices different in height and the two protruding portions 13 different in protruding height are provided, the heat generating device relatively larger in height is protruded into the protruding portion 13 relatively higher in protruding height, and the heat generating device relatively smaller in height is protruded into the protruding portion 13 relatively smaller in protruding height.

Illustratively, as shown in fig. 2, two heat generating devices having different heights may be the first heat generating device 22 and the second heat generating device 23, two protrusions 12 having different protrusion heights may be the first protrusion 131 and the second protrusion 132, the height H1 of the first heat generating device 22 is greater than the height H2 of the second heat generating device 23, the protrusion height P1 of the first protrusion 131 is greater than the protrusion height P2 of the second protrusion 132, the first heat generating device 22 having a relatively greater height protrudes into the first protrusion 131 having a relatively greater protrusion height, and the second heat generating device 23 having a relatively smaller height protrudes into the second protrusion 132 having a relatively smaller protrusion height.

Wherein the heights of the plurality of heat generating devices provided in the electronic control box 10 are different, for example: the inductive devices are generally arranged relatively higher, the heights of the capacitive devices are relatively lower, the distance between the distal ends of the inductive devices and the circuit board 21 is larger, the distance between the distal ends of the capacitive devices and the circuit board 21 is smaller, the heights of other components except the inductive elements and the capacitive elements may be lower, the heights of the inductive devices and the heights of the capacitive devices may be the same or different, the corresponding convex parts 13 may be a plurality of, the number of the convex parts 13 may be consistent with the number of the heating devices, the convex parts 13 are in one-to-one correspondence with the heating devices, or the number of the convex parts 13 may be smaller than the number of the heating devices, and at least one heating device may be arranged in one convex part 13 according to arrangement requirements.

Furthermore, according to the difference in height of the heating devices, the heating devices with higher heights can be arranged corresponding to the protruding portions 13 with higher heights, the heating devices with lower heights can be arranged corresponding to the protruding portions 13 with lower heights, and under the condition of ensuring the installation of the heating devices, the distance between the distal ends of the heating devices and the electric control box 10 can be ensured to be smaller through the arrangement of the protruding portions 13, so that the heat radiation and the heat dissipation of the heating devices are facilitated.

It should be noted that if the first case wall 101 is configured in a planar structure, the first case wall 101 has a small distance from the higher-level heat generating device, and is not only unfavorable for heat radiation and heat dissipation of the lower-level heat generating device, but also the heat dissipated by the lower-level heat generating device is easily conducted to the internal space of the electronic control case 10, especially between the distal end of the lower-level heat generating device and the first case wall 101, heat accumulation is generated, heat dissipation of the lower-level heat generating device is further hindered, and the protrusion 13 is configured to make the distances between the plurality of heat generating devices and the first case wall 101 lower, and heat channeling between adjacent heat generating devices can be improved, thereby improving heat dissipation effect.

According to the electric control component 100 of the embodiment of the utility model, by arranging the plurality of protruding parts 13 and arranging the heating devices with different heights corresponding to the protruding parts 13 with different heights, on one hand, the intervals between the plurality of heating devices and the first box wall 101 are lower, the heat radiation and heat dissipation of the heating devices can be improved, the heat accumulation is improved, and the heat dissipation effect is improved; on the other hand, heat channeling between adjacent heat generating devices can be improved to improve heat dissipation efficiency, so that the operation stability of the electronic control part 100 is higher.

For example, the electric 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, and the control components of the indoor heat exchange portion and the control components of the outdoor heat exchange portion are integrated in the electric control component 100, so that the electric power of the components in the electric control component 100 is higher, the heating value is larger, the heat dissipation is poor, and the special use environment of the electric control component 100 is considered. In this regard, the embodiment of the present utility model can timely guide out the heat inside the electric control box 10 to the outside of the electric control box 10 by providing the protruding portion 13, so as to effectively reduce the temperature inside the electric control box 10 and improve the working stability and the use safety of the electric control component 100.

As shown in fig. 2, according to some embodiments of the present utility model, the plurality of protrusions 13 includes a first protrusion 131, a protrusion height P1 of the first protrusion 131 is higher than a protrusion height of the remaining at least one protrusion 13, the heat generating device includes a first heat generating device 22 protruding into the first protrusion 131, and a heat conductive first heat dissipating structure 30 is provided between the first heat generating device 22 and the first protrusion 131.

The first heat generating device 22 may be an inductive device such as an inductance or a capacitive device such as a capacitance, the first heat generating device 22 is higher and is disposed in the first protrusion 131 with the highest height among the plurality of protrusions 13, and the first heat dissipating structure 30 is disposed between the first heat generating device 22 and the first protrusion 131, the heat generated by the first heat generating device may be transferred to the first heat dissipating structure 30, the first heat dissipating structure 30 further transfers the heat generated by the first heat generating device 22 to the electronic control box 10, and further dissipates heat through the electronic control box 10, so that the heat dissipating efficiency of the first heat generating device 22 is improved and the working stability of the first heat generating device 22 is improved through the first heat dissipating structure 30.

As shown in fig. 3, the first heat dissipation structure 30 is a heat-conducting silica gel and includes a first adhesive layer 31 and a second adhesive layer 32, the first adhesive layer 31 is located on one side of the second adhesive layer 32 adjacent to the first box wall 101, the thermal expansion coefficient of the first adhesive layer 31 is greater than the thermal expansion coefficient of the second adhesive layer 32, and the thermal conductivity of the second adhesive layer 32 is greater than the thermal conductivity of the first adhesive layer 31.

In the embodiment of the utility model, the first adhesive layer 31 is located on one side of the second adhesive layer 32 adjacent to the first box wall 101, and the thermal expansion coefficient of the first adhesive layer 31 is greater than that of the second adhesive layer 32, and during 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 first box wall 101 more tightly, and the second adhesive layer 32 with the relatively smaller thermal expansion coefficient has higher heat conduction efficiency, so that the heat conduction efficiency of the second adhesive layer 32 and the first box wall 101 can be improved, so that the heat of the first heating device 22 is transferred to the heat dissipation part more efficiently.

Therefore, by arranging the first heat dissipation structure 30, the heat generated by the first heat generating device 22 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 components inside the electric control box 10 including the first heat generating device 22 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.

Illustratively, the first heat dissipating structure 30 and the first heat generating device 22 may be integrally disposed and mounted on the circuit board 21, so that the difficulty in disposing the first heat dissipating structure 30 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 first heat dissipation structure 30 may be integrated with the electronic control box 10.

According to some embodiments of the present utility model, the first adhesive layer 31 and the second adhesive layer 32 of the first heat dissipation structure 30 may be two different heat conductive adhesives, and are injection molded on the first heat generating device 22, so that an integrated arrangement of the heat conductive adhesives and the first heat generating device 22 may be achieved. For example, when the first heat generating device 22 includes an inductor, the inductor is integrally provided with a thermally conductive silicone gel poured thereon to construct a composite inductor.

Therefore, 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 22 can be improved; on the other hand, the heat conduction silica gel can be poured and molded on the first heating device 22, the assembly difficulty between the heat conduction silica gel and the first heating device 22 is lower, and after the assembly is completed, the connection stability of the heat conduction silica gel and the first heating device 22 is higher, and the heat dissipation stability and the reliability are higher.

Further, as shown in fig. 2, the cross-sectional area of the first adhesive layer 31 gradually increases in the direction from the first case wall 101 to the circuit board 21.

Therefore, the first heat generating device 22 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 first box wall 101 more tightly, so that the heat conduction efficiency of the second adhesive layer 32 and the first box wall 101 is further improved, and the heat of the first heat generating device 22 is transferred to the electronic control box 10 more efficiently.

Of course, the present utility model is not limited thereto, and for example, the heat conductive silica gel may be provided in a form of constant cross-sectional area in a direction from the second adhesive layer 32 to the first adhesive layer 31, etc., and will not be described herein.

As shown in fig. 2, a thermally conductive silicone grease 60 is disposed between the second adhesive layer 32 and the first box wall 101.

The thermally conductive silicone grease 60 is provided on the first box wall 101 and/or the second glue layer 32. For example, the heat conductive silicone grease 60 may be coated on a side surface of the first case wall 101 facing the heat conductive silicone, and the heat conductive silicone grease 60 may also be coated on a side surface of the second adhesive layer 32 facing the first case wall 101.

Therefore, by arranging the heat-conducting silicone grease 60, the adhesion and heat conduction effects between the second adhesive layer 32 and the first box wall 101 are better, the gap between the second adhesive layer 32 and the first box wall 101 is reduced or even eliminated, and the heat conduction resistance can be reduced so as to improve the heat dissipation effect.

Referring to fig. 2, in some embodiments, the electronic control box 10 includes an inner shell 11 and an outer shell 12 covering the outer shell 11, the inner shell 11 is an insulating shell and a first opening 111 is formed at an end of the first protrusion 131 away from the circuit board 21, and the outer shell 12 is a metal shell and covers and closes the first opening 111.

The inner shell 11 forms the first opening 111, so that the first heat dissipation structure 30 can be attached to the outer shell 12, and heat generated by the first heat generating device 22 is more easily conducted to the electronic control box 10, so that auxiliary heat dissipation of the first heat generating device 22 is realized through the electronic control box 10, the temperature of the first heat generating device 22 is effectively reduced, and the working stability and reliability of the first heat generating device 22 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, and can be made of insulating materials such as plastics, and the first opening 111 is formed in the inner shell 11, so that the first heating device 22 is beneficial to radiating heat to the outer shell 12, and the heat radiation and heat dissipation efficiency is improved.

According to some embodiments of the present utility model, the plurality of protruding portions 13 includes a second protruding portion 132, a protruding height P2 of the second protruding portion 132 is lower than a protruding height of the remaining at least one protruding portion 13, the heat generating device includes a second heat generating device 23 protruding into the second protruding portion 132, the electronic control box 10 includes an inner-layer case 11 and an outer-layer case 12 covering the outer-layer case 11, the inner-layer case 11 is an insulating case and a second opening 112 is formed at an end of the second protruding portion 132 remote from the circuit board 21, and the outer-layer case 12 is a metal case and covers the second opening 112.

Illustratively, in the embodiment having the first protrusion 131, the second protrusion 132, the first heat generating device 22 and the second heat generating device 23 at the same time, the number of the first protrusion 131 is at least one, the height of the second protrusion 132 is smaller than that of the first protrusion 131, the height of the second protrusion 132 is also at least one, and the second heat generating device 23 with a height smaller than that of the first heat generating device 22 can extend into the second protrusion 132, and the second opening 112 is correspondingly provided on the inner shell 11, so that the distal end of the second heat generating device 23 in the second protrusion 132 can directly conduct heat radiation to the outer shell 12, thereby improving the heat radiation and heat dissipation efficiency of the second heat generating device 23 and improving the heat dissipation effect of the second heat generating device 23.

Illustratively, a plurality of capacitive devices and a plurality of inductive devices may be disposed inside the electronic control box 10, wherein at least one of the capacitive devices may be disposed in the second protrusion 132, at least one of the inductive devices may be disposed in the first protrusion 131, and a second heat dissipation structure (not shown) that conducts heat is disposed between the second heat generating device 23 and the second protrusion 132.

Illustratively, the inductive device within the electronic control box 10 may be one or more, at least one of which is the first heat generating device 22. For example, the inductive device with higher heat productivity in the inductive device may be the first heat-generating device 22, and the first opening 111 may be disposed at a position corresponding to the first heat-generating device 22, for example, in some examples, the first heat-generating device 22 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., and the heat generation is higher, and the first heat-generating device 22 has a relatively higher height, and the distal end (i.e., the end far away from the circuit board 21) is usually the position where the first heat-generating device 22 is closest to the first box wall 101, and the first opening 111 is disposed above the first opening 111, and may be disposed between the first heat-generating device 22 and the outer shell 12, so as to facilitate heat radiation and heat dissipation of the first heat-generating device 22 to the electronic control box 10.

When the first heat generating devices 22 are plural, at least two first heat generating devices 22 correspond to the same first protrusion 131, or each first heat generating device 22 corresponds to a different first protrusion 131, preferably, each first heat generating device 22 corresponds to one first protrusion 131, so that each first heat generating device 22 can have a larger heat radiation area, and mutual heat crosstalk between the plural first heat generating devices 22 can be reduced.

Similarly, the number of the capacitive devices in the electronic control box 10 may be one or more, at least one of which is the second heat generating device 23. As in some examples, the second heat generating device 23 is a plurality of capacitive devices that generate relatively large heat among all the capacitive devices, for example, the second heat generating device 23 is a high-voltage power Jie Dianrong that generates relatively large heat, and the second opening 112 is provided corresponding to the second heat generating device 23, and a second heat dissipating structure is provided between the second heat generating device 23 and the outer layer case 12 so that the second heat generating device 23 may have a large heat radiation possible area.

When the number of the second heat generating devices 23 is one or more, at least two second heat generating devices 23 correspond to the same second protrusion 132, or each second heat generating device 23 corresponds to a different second protrusion 132, preferably, each second heat generating device 23 corresponds to one second protrusion 132, so that each second heat generating device 23 can have a larger heat radiation area, and mutual heat crosstalk between the plurality of second heat generating devices 23 can be reduced.

In addition, the first heat dissipation structure 30 and the second heat dissipation structure are separately provided between the second heat generating device 23 and the outer shell 12 and between the first heat generating device 22 and the outer shell 12, respectively, so as to respectively realize heat dissipation of the first heat generating device 22 and the second heat generating device 23, respectively improve the heat dissipation effect of the first heat generating device 22 and the second heat generating device 23, and respectively improve the working stability and reliability of the first heat generating device 22 and the second heat generating device 23.

It should be noted that the second heat dissipation structure may also be configured as a heat dissipation silica gel, and include a third adhesive layer and a fourth adhesive layer, where the third adhesive layer is located on a side of the fourth adhesive layer away from the first box wall 101, and the thermal expansion coefficient of the third adhesive layer is greater than that of the fourth adhesive layer, and the thermal conduction coefficient of the fourth adhesive layer is greater than that of the third adhesive layer.

Referring to fig. 2, in some embodiments, the protrusion 13 is at least capped to the height 2/3 of the corresponding heat generating device.

Illustratively, the height of the first heat generating device 22 in the first protrusion 131 is H1, the first auxiliary line L1 is formed at 2/3 of the height of the first heat generating device 22, and the first protrusion 131 is covered at the first auxiliary line L1 or to a side of the first auxiliary line L1 near the circuit board 21. The height of the second heat generating device 23 in the second protrusion 132 is H2, the second auxiliary line L2 is formed at the height 2/3 of the height of the second heat generating device 23, and the second protrusion 132 is covered at the second auxiliary line L2 or on the side of the second auxiliary line L2 close to the circuit board 21.

Therefore, the distance between the first heating device 22 and the first box wall 101 and the distance between the second heating device 23 and the first box wall 101 are more reasonable, so that the heat radiation and heat dissipation efficiency is ensured, the height range of the heating device covered by the protruding part 13 is larger, the electric control component 100 is convenient to assemble, and meanwhile, the heat crosstalk between the adjacent first heating device 22 and second heating device 23 can be effectively reduced, and the heat dissipation effect is further improved.

Further, the protruding portion 13 may be further covered at least to 1/2, 1/3, etc. of the height of the corresponding heat generating device, so as to further increase the height range of the protruding portion 13 covering the heat generating device.

Referring to fig. 2, according to some embodiments of the present utility model, the heat generating device further includes a third heat generating device 24, the height H3 of the third heat generating device 24 is lower than the height of the heat generating device corresponding to the protrusion 13 (e.g., the height H1 of the first heat generating device 22 or the height H2 of the second heat generating device 23), a third heat dissipating structure 40 for heat conduction is provided between the third heat generating device 24 and the first case wall 101, and the third heat dissipating structure 40 covers the third heat generating device 24 and includes a plurality of first heat dissipating fins 41 disposed at intervals.

By way of example, the third heat generating device 24 may be a power device with relatively large heat generation, such as a compressor 300IPM (IPM is an abbreviation of Intelligent Power Module, i.e., intelligent power module), a blower IPM (IPM is an abbreviation of Intelligent Power Module, i.e., intelligent power module), an IGBT (i.e., an abbreviation of Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), and a bridge stack.

Thereby, the third heat generating device 24 may exchange heat through the first heat sink 41, absorb heat generated by the third heat generating device 24 through the first heat sink 41, and radiate to the outer case 12 to reduce the heat of the third heat generating device 24. And, a ventilation gap can be formed between the adjacent first cooling fins 41, which is beneficial to improving the heat dissipation effect of the third heat dissipation structure 40.

Illustratively, the third heat dissipating structure 40 may further include a heat conducting plate located within the electronic control box 10 and covering the third heat generating device 24, with the first heat sink 41 being connected to the heat conducting plate.

The heat conducting plate and the third heating device 24 may be directly matched for heat transfer, or a heat conducting silicone grease 60 and/or a temperature equalizing plate may be arranged between the heat conducting plate and the third heating device 24 for indirect matched for heat transfer, the material of the temperature equalizing plate and the material of the heat conducting plate may be the same or different, in general, the heat conducting plate is of a fixed specification, and the temperature equalizing plate may be arranged in different shapes and sizes according to different combinations and arrangements of the third heating device 24 so as to cover the third heating device 24 as much as possible, and the temperature equalizing plate collects heat and transfers the heat to the heat conducting plate.

As shown in fig. 2, the first case wall 101 has a bulge portion 14 protruding in a direction away from the circuit board 21, and a side of the bulge portion 14 facing the circuit board 21 forms a relief space for accommodating the third heat dissipation structure 40.

Illustratively, the height of the bump 14 is smaller than the first and second protrusions 131 and 132, and the bump 14 is configured to accommodate the third heat dissipation structure 40 and may space at least a portion of the third heat dissipation structure 40 from other components in the electronic control box 10. Thus, not only can the third heat dissipating structure 40 be disposed adjacent to the outer shell 12 to improve the heat exchange efficiency between the third heat dissipating structure 40 and the outer shell 12; and the heat crosstalk between the third heat dissipation structure 40 and other surrounding elements can be reduced, the heat dissipation efficiency and the heat dissipation effect of the third heat generation device 24 are improved, and the working stability and the reliability of the third heat generation device 24 are improved.

The electronic control box 10 includes an inner shell 11 and an outer shell 12 covering the inner shell 11, wherein the inner shell 11 is an insulating shell, a third opening 113 is formed at an end of the bulge 14 away from the circuit board 21, and the outer shell 12 is a metal shell and covers and closes the third opening 113.

Therefore, the inner shell 11 forms the third opening 113, so that the third heat dissipation structure 40 can be attached to the outer shell 12, and the heat generated by the third heat generating device 24 is more easily conducted to the electronic control box 10, so that the auxiliary heat dissipation of the third heat generating device 24 is realized through the electronic control box 10, the temperature of the third heat generating device 24 is effectively reduced, and the working stability and reliability of the third heat generating device 24 are improved.

As shown in fig. 2, according to some embodiments of the present utility model, the heat generating device further includes a fourth heat generating device 25, a height H4 of the fourth heat generating device 25 is lower than a height of the heat generating device corresponding to the protrusion 13 (e.g., a height H1 of the first heat generating device 22 or a height H2 of the second heat generating device 23), the electronic control part 100 further includes a fourth heat dissipating structure 50, a portion of the fourth heat dissipating structure 50 is located within the electronic control box 10 and covers the fourth heat generating device 25, and the remaining portion of the fourth heat dissipating structure 50 protrudes outside the electronic control box 10 and includes a plurality of second heat dissipating fins 51 arranged at intervals.

By way of example, the third heat generating device 24 may be a power device with relatively large heat generation, such as a compressor 300IPM (IPM is an abbreviation of Intelligent Power Module, i.e., intelligent power module), a blower IPM (IPM is an abbreviation of Intelligent Power Module, i.e., intelligent power module), an IGBT (i.e., an abbreviation of Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), and a bridge stack.

Thereby, the heat exchange can be performed on the fourth heat generating device 25 through the second heat radiating fin 51, and the heat generated by the fourth heat generating device 25 is absorbed through the second heat radiating fin 51 and radiated to the outside of the electronic control box 10, so as to reduce the heat of the fourth heat generating device 25. 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 40.

Illustratively, the fourth heat dissipating structure 50 further includes a connection board located within the electronic control box 10 and covering the fourth heat generating device 25, to which the second heat sink 51 is connected.

Wherein, the connection board and the fourth heating device 25 can be directly matched for heat transfer, or a heat conduction silicone grease 60 and/or a temperature equalizing board can be arranged between the connection board and the fourth heating device 25 for indirect matched for heat transfer, the material of the temperature equalizing board and the material of the connection board can be the same or different, in general, the connection board is of fixed specification, and the temperature equalizing board can be arranged into different shapes and sizes according to different combinations and arrangements of the fourth heating device 25 so as to cover more fourth heating devices 25 as much as possible, and the temperature equalizing board collects heat and transfers the heat to the connection board.

In some embodiments, 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 embodiment of the utility model can avoid damage to components in the electronic control box 10 caused by environmental factors by setting the electronic control box 10 as a closed box body, and the electronic control box 10 is set as a closed box body, so that 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, and adverse effects on the inductive devices can be avoided, and thus 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 22 is improved by arranging the first heat dissipation structure 30 in the electronic control box 10, the heat dissipation efficiency of the second heat generating device 23 is improved by arranging the second heat dissipation structure, the heat dissipation efficiency of the third heat generating device 24 is improved by arranging the third heat dissipation structure 40, and the heat dissipation of the fourth heat generating device 25 is improved by arranging the fourth 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.

Illustratively, a heat-conducting silicone grease may be disposed between the second heat dissipating structure and the second heat generating device 23, between the third heat dissipating structure 40 and the third heat generating device 24, and between the fourth heat dissipating structure 50 and the fourth heat generating device 25 to improve heat dissipation.

As shown in fig. 4, an air conditioner 1000 according to 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 embodiments.

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.

Specifically, the housing 200 has an air supply duct and an air exhaust duct isolated from each other, the first heat exchanger 400 is disposed in the air supply duct, the second heat exchanger 500 is disposed in the air exhaust duct, the first heat exchanger 400 and the second heat exchanger 500 are both connected to the compressor 300 and respectively serve as a condenser and an evaporator, an inlet of the air supply fan 600 is communicated with the air supply duct and an outlet of the air supply fan 600 is communicated to the indoor side, an inlet of the air exhaust fan 700 is communicated with the air exhaust duct and an outlet of the air exhaust fan 700 is communicated to the outdoor side.

Further, the electric control component 100 is arranged in the air exhaust duct, the outlet of the air exhaust duct is communicated with the outdoor side, heat generated by the electric control component 100 can be directly exhausted to the outdoor side, the heat generated by the electric control component 100 is prevented from flowing to the indoor side under the action of air flow, and the influence on the temperature regulation effect of the air conditioner 1000 is avoided, so that the temperature regulation stability and reliability of the air conditioner 1000 are ensured.

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.

Wherein the refrigerant in the compressor 300 comprises carbon dioxide.

Specifically, for the kitchen air conditioner, the refrigerant using carbon dioxide as the refrigerant is safer, but when the compressor 300 works, the electric power of the electric control component 100 matched with the compressor 300 is correspondingly increased, 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 1000, 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, the third heat dissipation structure 40, 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 1000, but also used for other devices requiring electric control, and will not be described 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 electric control box comprises a first box wall, the circuit assembly is arranged in the electric control box and comprises a circuit board and a heating device, and the heating device is arranged on one side, close to the first box wall, of the circuit board;

the first box wall is provided with a protruding part protruding towards the direction away from the circuit board, one side of the protruding part facing the circuit board forms an accommodating space for accommodating the heating devices, the number of the protruding parts is multiple, the protruding heights of at least two protruding parts are different, and the number of the heating devices is multiple, and the heights of at least two heating devices are different;

wherein two of the heat generating devices having different heights and two of the projecting portions having different projecting heights extend into the projecting portion having a relatively higher projecting height, and the heat generating device having a relatively smaller height extends into the projecting portion having a relatively smaller projecting height.

2. The electronic control of claim 1, wherein the plurality of protrusions comprise a first protrusion having a protrusion height that is greater than the protrusion height of the remaining at least one protrusion, and wherein the heat generating device comprises a first heat generating device extending into the first protrusion, and wherein a thermally conductive first heat dissipating structure is disposed between the first heat generating device and the first protrusion.

3. The electronic control component of claim 2, wherein the first heat dissipating structure is a thermally conductive silicone and comprises a first adhesive layer and a second adhesive layer, the first adhesive layer being located on a side of the second adhesive layer away from the first cartridge wall, the first adhesive layer having a coefficient of thermal expansion greater than a coefficient of thermal expansion of the second adhesive layer, the second adhesive layer having a coefficient of thermal conductivity greater than a coefficient of thermal conductivity of the first adhesive layer.

4. An electrically controlled member according to claim 3, wherein the cross-sectional area of the first glue layer increases gradually in a direction from the first cartridge wall to the circuit board.

5. An electrically controlled member according to claim 3, wherein a thermally conductive silicone is provided between the second glue layer and the first cartridge wall.

6. The electronic control according to claim 2, 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 a first opening being formed at an end of the first projection away from the circuit board, the outer-layer case being a metal case and shielding the first opening.

7. The electronic control according to claim 1, wherein the plurality of protruding portions includes a second protruding portion having a protruding height lower than that of at least one remaining protruding portion, the heat generating device includes a second heat generating device protruding into the second protruding portion, the electronic control box includes an inner-layer case and an outer-layer case covering outside the inner-layer case, the inner-layer case is an insulating case and a second opening is formed at an end portion of the second protruding portion remote from the circuit board, and the outer-layer case is a metal case and covers and closes the second opening.

8. The electrical control component of claim 7, wherein a thermally conductive second heat dissipating structure is disposed between the second heat generating device and the second protrusion.

9. An electrically controlled member according to any one of claims 1 to 8, wherein the projections are at least capped to a height of 2/3 of the corresponding heat generating device.

10. The electronic control component of claim 1, wherein the heat generating device further comprises a third heat generating device, the third heat generating device having a height lower than the height of the heat generating device corresponding to the protrusion, a third heat dissipating structure thermally conductive being disposed between the third heat generating device and the first case wall, the third heat dissipating structure covering the third heat generating device and comprising a plurality of first heat dissipating fins disposed at intervals.

11. The electronic control of claim 10, wherein the first case wall has a protrusion protruding away from the circuit board, and a side of the protrusion facing the circuit board forms a relief space for accommodating the third heat dissipation structure.

12. The electronic control according to claim 11, characterized in that the electronic control box includes an inner-layer case that is an insulating case and is formed with a third opening at an end of the ridge portion that is away from the circuit board, and an outer-layer case that is a metal case and that covers and closes the third opening.

13. The electronic control component of claim 1, wherein the heat generating device further comprises a fourth heat generating device having a height lower than the height of the heat generating device corresponding to the protrusion, the electronic control component further comprises a fourth heat dissipating structure, a portion of the fourth heat dissipating structure is located within the electronic control box and covers the fourth heat generating device, and a remaining portion of the fourth heat dissipating structure extends out of the electronic control box and includes a plurality of second heat dissipating fins arranged at intervals.

14. The electrical control component of claim 1, 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.