CN220524328U - 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 cooling device comprises an electric control box, a circuit component and a cooling component, wherein a cavity is formed in the electric control box, the circuit component is arranged in the cavity and comprises a circuit board and a first heating device arranged on the circuit board, the cooling component comprises a cooling medium pipe, a part of the cooling medium pipe stretches into the electric control box and is in heat transfer fit with the first heating device, a part of the cooling medium pipe is in heat transfer fit with the electric control box, and a part of the cooling medium pipe stretches out of the electric control box to be used for being communicated with a cooling medium flow path outside the electric control box. 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 of the electric equipment adopting the electric control box are adopted, so that the electric power of the components in the electric control box is required to be increased, the heat productivity is larger, the heat generated by the components is difficult to dissipate, and the working stability and the use safety of the electric control components are 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 cooling device comprises an electric control box, a circuit component and a cooling component, wherein a cavity is formed in the electric control box, the circuit component is arranged in the cavity and comprises a circuit board and a first heating device arranged on the circuit board, the cooling component comprises a cooling medium pipe, a part of the cooling medium pipe stretches into the electric control box and is in heat transfer fit with the first heating device, a part of the cooling medium pipe is in heat transfer fit with the electric control box, and a part of the cooling medium pipe stretches out of the electric control box to be used for being communicated with a cooling medium flow path outside the electric control box.

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 and the heat radiated to the electric control box by the circuit component are quickly and timely led out by arranging the heat radiating component, so that the internal temperature of the electric control box is reduced, the working environment temperature is improved, the working environment temperature of 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 electrical control box includes a body portion defining the chamber therein and an extension portion extending outwardly from an edge of the body portion, the refrigerant tube cooperating with the extension portion to transfer heat with the electrical control box through the extension portion.

Further, the extension portion includes a first extension wall and a second extension wall, and the refrigerant tube is clamped between the first extension wall and the second extension wall.

Further, the first extending wall is provided with an avoidance portion protruding towards the direction away from the second extending wall, an avoidance hole is formed between the avoidance portion and the second extending wall, and the refrigerant pipe penetrates through the avoidance hole.

Further, the refrigerant pipe comprises a plurality of pipe sections which are arranged in parallel, and each pipe section is clamped between the first extension wall and the second extension wall.

In some embodiments, heat dissipation silicone grease is disposed between the refrigerant tube and the extension.

Further, the first extension wall and the second extension wall are fixedly connected through a fastener or a clamping piece.

Further, 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, the outer shell is a metal shell, and the extension part is a part of the outer shell.

According to some embodiments of the utility model, the heat dissipation assembly further comprises a heat conduction plate, the heat conduction plate is arranged on one side of the first heat generation device far away from the circuit board, and a part of the refrigerant pipe is embedded in the heat conduction plate so as to transfer heat with the first heat generation device through the heat conduction plate.

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, in a thickness direction of the circuit board, a height of the second heat generating device is higher than a height of the first heat generating device, the electronic control box includes an inner shell and an outer shell covering the outer of the inner shell, the inner shell is an insulating shell and is formed with a first opening, an end portion, far away from the circuit board, of the second heat generating device corresponds to the first opening, and the outer shell is a metal shell and covers and seals the first opening.

Further, the second heating device comprises a first inductive device and a first capacitive device, the first openings are arranged at intervals, and the first inductive device and the first capacitive device respectively correspond to different first openings.

Further, the second heating device comprises a first inductive device, the electric control box comprises a first box wall, the first box wall is located on one side, far away from the circuit board, of the second heating device, the part of the first box wall protrudes towards the direction far away from the circuit board to form a protruding portion, an avoidance cavity is formed in the inner side of the protruding portion, and at least part of the first inductive device is contained in the avoidance cavity.

According to some embodiments of the utility model, the circuit assembly further comprises a third heating device arranged on the circuit board and located in the electric control box, a heat dissipation piece is further arranged in the electric control box, the heat dissipation piece covers one side, far away from the circuit board, of the third heating device so as to be in heat transfer fit with the third heating device, and the heat dissipation piece comprises a plurality of heat dissipation fins arranged at intervals.

Further, the electric control box comprises an inner shell and an outer shell, wherein the outer shell is covered outside the inner shell, the inner shell is an insulating shell and is provided with a second opening, the end part, far away from the circuit board, of the heat dissipation part corresponds to the second opening, and the outer shell is a metal shell and shields and seals the second opening.

Further, the electric control box is a closed box body.

According to a second aspect of the present utility model, an air conditioner includes a casing, a refrigerant circulation system, an air supply fan, an air exhaust fan, and the electric control component described in the foregoing embodiments, where the casing has an air supply channel and an air exhaust channel that are isolated from each other, the refrigerant circulation system includes a compressor, a first heat exchanger, a second heat exchanger, and the first heat exchanger is disposed in the air supply channel, the second heat exchanger is disposed in the air exhaust channel, the first heat exchanger and the second heat exchanger are both connected to 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 an indoor side, an inlet of the air exhaust fan is communicated with the air exhaust channel, an outlet of the air exhaust fan is communicated to an outdoor side, and a refrigerant flow path of the refrigerant circulation system is communicated with the refrigerant pipe.

Further, the inlet and outlet ends of the refrigerant pipe are respectively communicated with the inlet and/or outlet of the evaporator; and/or the refrigerant of the refrigerant cycle system 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,

the electronic control box 10, the inner shell 11, the first opening 111, the second opening 112, the outer shell 12, the body portion 121, the extension 122, the first extension wall 1221, the second extension wall 1222, the relief portion 1223, the projection 13, the relief chamber 131,

the circuit assembly 20, the first heat generating device 21, the second heat generating device 22, the first inductive device 221, the first capacitive device 222, the third heat generating device 23, the circuit board 24,

a heat radiation component 30, a refrigerant pipe 31, a pipe section 311, a heat conduction plate 32,

a heat sink 40, and a heat sink 41.

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 and 2, an electronic control unit 100 according to an embodiment of the first aspect of the present utility model includes: an electric control box 10, a circuit assembly 20 and a heat dissipation assembly 30.

Wherein, a chamber is formed in the electronic control box 10, the circuit assembly 20 is disposed in the chamber and comprises a circuit board 24 and a first heating device 21 disposed on the circuit board 24, the heat dissipation assembly 30 comprises a refrigerant pipe 31, a part of the refrigerant pipe 31 extends into the electronic control box 10 and is in heat transfer fit with the first heating device 21, a part of the refrigerant pipe 31 is in heat transfer fit with the electronic control box 10, and a part of the refrigerant pipe 31 extends out of the electronic control box 10 to be used for communicating a refrigerant flow path outside the electronic control box 10.

For example, the electronic control box 10 defines an inner cavity by a plurality of plate structures such as a bottom plate, a side plate, a top plate, and the like, the circuit assembly 20 is disposed in the inner cavity of the electronic control box 10, and the first heat generating device 21 may be a power device with larger heat generation, such as a compressor IPM (IPM is an abbreviation of Intelligent Power Module, i.e. an intelligent power module), a fan IPM (IPM is an abbreviation of Intelligent Power Module, i.e. an intelligent power module), an IGBT (i.e. an abbreviation of Insulated Gate Bipolar Transistor, an insulated gate bipolar transistor), and a bridge stack. The power device is packaged on the circuit board 24, or is electrically connected to the circuit board 24 after being packaged separately, at least part of the refrigerant tube 31 is arranged outside the electric control box 10 and penetrates through the electric control box 10, and the refrigerant tube 31 can absorb heat generated by the first heat generating device 21 and heat of the electric control box 10 through the refrigerant flow path and conduct the heat to the outside of the electric control box 10, so that the first heat generating device 21 and the electric control box 10 are cooled.

It can be understood that, by arranging the heat dissipation component 30, the heat generated by the first heat generating device 21 inside the electric control box 10 and the heat radiated to the electric control box 10 by the circuit component 20 can be exported to the outside, so that the heat generated by the first heat generating device 21 with larger heat generation amount is prevented from accumulating inside the electric control box 10, the internal temperature of the electric control box 10 is effectively reduced, and the working stability and the use safety of the electric control component 100 are improved.

It should be noted that the shape of the refrigerant tube 31 is not limited, the refrigerant tube 31 has an inlet end and an outlet end, the refrigerant enters the refrigerant tube 31 from the inlet end, and flows out of the refrigerant tube 31 from the outlet end, and as a part of the refrigerant tube 31 stretches into the electric control box 10 and is in heat transfer fit with the first heating device 21, and a part of the refrigerant tube 31 is in heat transfer fit with the electric control box 10, the heat exchange between the refrigerant and the first heating device 21 and the electric control box 10 can be realized, and the effect of cooling the first heating device 21 and the electric control box 10 is achieved.

According to the electric control component 100 of the embodiment of the utility model, by arranging the heat dissipation component 30, the heat generated by the first heat generating device 21 in the electric control box 10 and the heat radiated to the electric control box 10 by the circuit component 20 are quickly and timely conducted out, the temperature in the electric control box 10 is reduced, the working environment temperature is improved, and the working environment temperature of components including the first heat generating device 21 in the electric control box 10 is lower, so that the working stability and the use safety of the electric control component 100 are improved.

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, 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 high, the heating value is large, the heat dissipation is poor, and based on the special use environment of the electric control component 100, the electric control box 10 is constructed to be in a closed structure, so that the electric control component 100 is prevented from being damaged due to greasy dirt, water vapor and the like, and the closed structure can cause the working temperature in the electric control box 10 to be high, so that the components in the electric control box 10 are more difficult to dissipate heat. In this regard, by arranging the heat dissipation assembly 30, the heat of the electronic control box 10 and the heat generated by the first heat generating device 21 with larger heat productivity can be timely led out 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.

As shown in fig. 2, according to some embodiments of the present utility model, the electronic control box 10 includes a body portion 121 and an extension portion 122, a chamber is defined in the body portion 121, the extension portion 122 extends outward from an edge of the body portion 121, and the refrigerant tube 31 cooperates with the extension portion 122 to transfer heat with the electronic control box 10 through the extension portion 122.

The direction of the electric control box 10 is defined as inner, the direction of the electric control box 10 is defined as outer, the electric control box 10 is internally formed into an inner cavity to accommodate components, the body 121 defines the inner cavity, a through hole is formed in the body 121, an extension 122 is formed on the upper side or the lower side of the through hole, the part of the refrigerant tube 31 extending into the inner cavity can realize heat dissipation of the first heating device 21 in the body 121, at least part of the refrigerant tube 31 extending out of the inner cavity can contact with the extension 122 of the electric control box 10 to exchange heat, so that the temperature of the electric control box 10 is reduced through the extension 122, namely, forced heat exchange through the heat dissipation assembly 30 can simultaneously realize cooling and temperature reduction of the electric control box 10 and the first heating device 21, while the cooling efficiency and the cooling effect are improved, one heat dissipation assembly 30 can simultaneously realize cooling and temperature reduction of two components, the structure of the electric control part 100 can also be simplified, the space occupation of the electric control box 10 is lower, the refrigerant tube 31 can be integrated on a flow path of an electric appliance adopting the electric control part 100, and the heat dissipation assembly is simple and the heat dissipation assembly 30 is convenient to set.

As shown in fig. 1, further, the extension 122 includes a first extension wall 1221 and a second extension wall 1222, and the refrigerant tube 31 is sandwiched between the first extension wall 1221 and the second extension wall 1222.

Illustratively, the upper side of the via forms a first extension wall 1221 and the lower side forms a second extension wall 1222; or the lower side of the through hole forms a first extension wall 1221, the upper side forms a second extension wall 1222, and the refrigerant pipe 31 can simultaneously contact and dissipate heat of the first extension wall 1221 and the second extension wall 1222, so that the cooling assembly 30 has better cooling and temperature-reducing effects on the electric control box 10.

As shown in fig. 1, the first extension wall 1221 has a relief portion 1223 protruding in a direction away from the second extension wall 1222, and a relief hole is formed between the relief portion 1223 and the second extension wall 1222, and the refrigerant tube 31 is inserted into the relief hole.

Therefore, through the arrangement of the avoiding holes, on one hand, the refrigerant pipe 31 is convenient to penetrate, and the contact area between the extension part 122 and the refrigerant pipe 31 can be increased, so that the heat dissipation area is increased, and on the other hand, the wrapping property of the refrigerant pipe 31 is better, the occurrence of movement of the refrigerant pipe 31 can be avoided, the heat dissipation stability and reliability are improved, and the sealing performance of the electronic control box 10 can be ensured.

Further, the refrigerant pipe 31 includes a plurality of pipe sections 311 arranged in parallel, and each pipe section 311 is sandwiched between the first extension wall 1221 and the second extension wall 1222. In this way, the number of the pipe sections 311 is larger, the contact area between the refrigerant pipe 31 and the first heat generating device 21, and the contact area between the refrigerant pipe 31 and the extension portion 122 are larger, and the heat exchange efficiency and the heat exchange effect are better.

Illustratively, the refrigerant tube 31 includes at least two straight tube sections and a bent tube section, so that the refrigerant in the refrigerant tube 31 can be communicated with the refrigerant flow path.

In some embodiments, heat dissipation silicone grease is disposed between the refrigerant tube 31 and the extension 122. Therefore, the heat dissipation silicone grease can fill the gap between the refrigerant pipe 31 and the extension part 122, so that the heat dissipation silicone grease and the extension part are in contact more fully, and the heat exchange efficiency and the heat exchange effect are improved.

As shown in fig. 1 and 2, the first extension wall 1221 and the second extension wall 1222 are fixedly connected by a fastener (such as a screw or a bolt) or a clamping member (such as a buckle or a hook). Thus, the structural strength and reliability of the entire electronic control box 10 can be improved, and the reliability and stability of fixing the refrigerant tube 31 can be improved.

Further, as shown in fig. 2, 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, the outer shell 12 is a metal shell, and the extension 122 is a part of the outer shell 12.

Specifically, the outer shell 12 is made to be a metal shell, so that the structural reliability and fire resistance of the electronic control box 10 can be ensured, the inner shell 11 can be used for playing a role in insulation, flame retardance and other protection, insulating materials such as plastics can be selected, the extension part 122 is used as a part of the outer shell 12, the outer shell 12 can reduce the internal temperature of the electronic control box 10 through heat radiation, the extension part 122 can radiate the heat of the outer shell 12 through the heat radiating component 30, and the heat radiating effect of the electronic control box 10 is improved.

According to some embodiments of the present utility model, as shown in fig. 2, the heat dissipating assembly 30 further includes a heat conducting plate 32, the heat conducting plate 32 is disposed on a side of the first heat generating device 21 away from the circuit board 24, and a part of the refrigerant pipe 31 is embedded in the heat conducting plate 32 to transfer heat with the first heat generating device 21 through the heat conducting plate 32.

Therefore, the heat transfer matching efficiency of the refrigerant pipe 31 and the first heating device 21 can be improved through the contact heat exchange between the heat conducting plate 32 and the first heating device 21, so that the heat of the first heating device 21 can be more intensively transferred to the refrigerant pipe 31, the heat of the heat conducting plate 32 is further conducted to a refrigerant flow path through the refrigerant pipe 31, the efficient heat dissipation is realized through the refrigerant flow path, the temperature of the first heating device 21 and the temperature of the electric control box 10 are effectively reduced, and the working stability and reliability of the first heating device 21 are improved.

Illustratively, a heat-conducting silicone grease may be further coated between the heat-conducting plate 32 and the first heat-generating device 21, so that the heat-conducting plate 32 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 reducing heat transfer resistance and further improving heat dissipation efficiency.

Illustratively, the refrigerant tube 31 may include a plurality of straight tube segments 311, the plurality of straight tube segments 311 are all inserted into the electronic control box 10, one end of the straight tube segments 311 extending into the electronic control box 10 is embedded in the heat conducting plate 32, one end of the straight tube segments 311 located outside the electronic control box 10 is connected with the extending portion 122, the refrigerant tube 31 may also be configured as a serpentine tube or the like, meandered on the heat conducting plate 32 and embedded in the heat conducting plate 32, and the straight tube segments extend out of the electronic control box 10 and are connected with the extending portion 122.

Therefore, when the package shell or the package structure is arranged on the first heat-generating device 21 through the contact heat exchange between the heat-conducting plate 32 and the first heat-generating device 21, heat-conducting silicone grease can be coated between the heat-conducting plate 32 and the first heat-generating device 21 so as to lead out heat generated by the first heat-generating device 21 through the heat-conducting plate 32, and further, heat of the heat-conducting plate 32 is conducted to a refrigerant flow path through the refrigerant pipe 31, so that efficient heat dissipation is realized through the refrigerant flow path, 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 will be appreciated that the heat conducting plate 32 and the first heat generating device 21 may be in direct heat transfer fit, or may be provided with heat conducting silicone grease therebetween, and a temperature equalizing plate is provided to indirectly transfer fit, in an embodiment in which the temperature equalizing plate is provided between the first heat generating device 21 and the heat conducting plate 32, the material of the temperature equalizing plate may be the same as or different from that of the heat conducting plate 32, and in general, the heat conducting plate 32 and the material of the refrigerant tube 31 are fixed together, the size of the heat conducting plate 32 is usually fixed, and the temperature equalizing plate may be provided in different shapes and sizes according to different combinations and arrangements of the first heat generating device 21, so as to cover as many first heat generating devices 21 as possible, and the temperature equalizing plate collects heat and transfers the heat to the heat conducting plate 32.

As shown in fig. 2, in some embodiments, the circuit assembly 20 further includes a second heat generating device 22 disposed on the circuit board 24 and located in the electronic control box 10, in a thickness direction of the circuit board 24, the second heat generating device 22 has a height higher than that of the first heat generating device 21, 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 is formed with a first opening 111, an end portion of the second heat generating device 22 away from the circuit board 24 corresponds to the first opening 111, and the outer shell 12 is a metal shell and covers and closes the first opening 111.

The second heat generating device 22 may include capacitive devices such as a capacitor and/or inductive devices such as an inductor, the second heat generating device 22 is higher than the first heat generating device 21, the second heat generating device 22 is disposed adjacent to the electronic control box 10 compared with the first heat generating device 21, and the first opening 111 is disposed on the area of the inner shell 11 corresponding to the second heat generating device 22, so that the heat generated by the second heat generating device 22 is more easily conducted to the outer shell 12 through the first opening 111, so as to absorb the heat of the second heat generating device 22 through the outer shell 12, effectively reduce the temperature of the second heat generating device 22, improve the working stability and reliability of the second heat generating device 22, and effectively reduce the temperature of the electronic control box 10 through the heat dissipation of the extension portion 122 and the refrigerant tube 31, thereby further reducing the heat absorbing capacity of the electronic control box 10 to the second heat generating device 22, and further reducing the temperature of the second heat generating device 22.

As shown in fig. 2, the second heat generating device 22 includes a first inductive device 221 and a first capacitive device 222, where the first openings 111 are a plurality of spaced apart, and the first inductive device 221 and the first capacitive device 222 respectively correspond to different first openings 111.

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 221. For example, the inductive device with higher heat productivity may be the first inductive device 221, and the first opening 111 may be disposed at a position corresponding to the first inductive device 221, for example, in some examples, the first inductive device 221 may be connected to a strong current, for example, PFC inductor (where PFC is an abbreviation of Power Factor Correction, power factor correction) or common mode inductor, etc., and the heat dissipation is higher, and the height of the first inductive device 221 is relatively higher, where the distal end (i.e. the end far from the circuit board 24) of the first inductive device 221 is usually the position where the first inductive device 221 is closest to the electronic control box 10, and the first opening 111 is disposed above the first inductive device 221, so that the distance between the distal end of the first inductive device 221 and the electronic control box 10 may be defined as 5mm-10mm in some examples, while improving the heat dissipation efficiency of the heat radiation, and meeting the requirements of safety may also be satisfied.

When the first inductive devices 221 are plural, at least two first inductive devices 221 correspond to the same first opening 111, or each first inductive device 221 corresponds to a different first opening 111, preferably, each first inductive device 221 corresponds to one first opening 111, so that each first inductive device 221 can have a larger heat radiation area, and mutual heat crosstalk between the plural first inductive devices 221 can be reduced.

Similarly, the capacitive devices within the electronic control box 10 may be one or more, at least one of which is the first capacitive device 222. As in some examples, the first capacitive device 222 is a number of capacitive devices that generate relatively large heat among all the capacitive devices, for example, the first capacitive device 222 is a high-voltage power Jie Dianrong that generates relatively large heat, etc., and the first opening 111 is provided corresponding to the first capacitive device 222 so that the first capacitive device 222 may have a large heat-radiating area.

When the number of the first capacitive devices 222 is one or more, at least two first capacitive devices 222 correspond to the same first opening 111, or each first capacitive device 222 corresponds to a different first opening 111, preferably, each first capacitive device 222 corresponds to one first opening 111, so that each first capacitive device 222 can have a larger heat radiation area, and mutual heat crosstalk between the plurality of first capacitive devices 222 can be reduced.

Further, the second heat generating device 22 includes a first inductive device 221, the electric control box 10 includes a first box wall, the first box wall is located on a side of the second heat generating device 22 away from the circuit board 24, a part of the first box wall protrudes toward a direction away from the circuit board 24 to form a protruding portion 13, an inner side (i.e., a side facing an inside of the electric control box 10) of the protruding portion 13 forms an avoidance cavity 131, and at least a part of the first inductive device 221 is accommodated in the avoidance cavity 131.

Specifically, the protrusion 13 is provided to form the avoidance cavity 131 to accommodate the first inductive device 221, so that on one hand, the heat radiation area of the first inductive device 221 can be increased, and the heat radiation efficiency can be improved; on the other hand, the protruding portion 13 can cover the heat dissipation of the first inductive device 221, so that the heat flowing to other positions can be reduced to cause adverse heat influence on other components on the circuit board 24, meanwhile, the non-protruding portion of the electronic control box 10 can save materials, and is closer to other components on the circuit board 24, so that heat radiation and heat dissipation of other components are facilitated.

It will be appreciated that the height of the inductive device is relatively high, the distance between the distal end of the inductive device and the circuit board 24 is relatively large, the height of the capacitive device is relatively low, the distance between the capacitive device and the circuit board 24 is small, and the protrusion 13 is provided, so that the distance between the distal ends of the inductive device and the capacitive device and the electronic control box 10 is small by the arrangement of the protrusion 13 under the condition that the inductive device and the capacitive device are ensured to be mounted, thereby being beneficial to heat radiation and heat dissipation of the inductive device and the capacitive device.

In other words, the first box wall is set to be a planar structure, so that the distance between the first box wall and the inductive device is small, and the distance between the first box wall and the capacitive device is large, which is not only unfavorable for the heat radiation and heat dissipation of the capacitive device to the electronic control box 10, but also the heat dissipated by the inductive device can be easily conducted between the capacitive device and the electronic control box 10 to further block the heat dissipation of the capacitive device, and the protrusion 13 is provided in the utility model, so that the heat dissipation efficiency is improved, and meanwhile, the heat channeling between the capacitive device and the inductive device, such as the first capacitive device 222 and the first inductive device 221, is avoided, and the heat dissipation effect is improved.

Referring to fig. 3, according to some embodiments of the present utility model, the circuit assembly 20 further includes a third heat generating device 23 disposed on the circuit board 24 and located in the electronic control box 10, and a heat dissipating member 40 is further disposed in the electronic control box 10, and the heat dissipating member 40 covers a side of the third heat generating device 23 away from the circuit board 24 so as to be in heat transfer fit with the third heat generating device 23, and the heat dissipating member 40 includes a plurality of heat dissipating fins 41 disposed at intervals.

Thereby, the third heat generating device 23 can be directly heat-exchanged by the heat sink 41, and the heat generated by the third heat generating device 23 is absorbed by the heat sink 41 and radiated to the outside of the electronic control box 10 to reduce the heat of the third heat generating device 23. And, a ventilation gap can be formed between the adjacent cooling fins 41, which is beneficial to improving the heat dissipation effect of the heat dissipation element 40.

Illustratively, the heat generation amount of the third heat generating device 23 may be smaller than the heat generation amount of the first heat generating device 21.

Referring to fig. 2, 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 is formed with a second opening 112, an end of the heat dissipation element 40 far away from the circuit board 24 corresponds to the second opening 112, and the outer shell 12 is a metal shell and covers and closes the second opening 112.

Specifically, the first opening 111 and the second opening 112 may be disposed at a spaced apart position, or the first opening 111 may be in communication with the second opening 112, and the distal end of the heat sink 40 may be disposed adjacent to the second opening 112, so that the heat emitted from the heat sink 40 may be directly radiated to the outer shell 12 through the second opening 112, thereby improving the heat dissipation efficiency.

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, in some embodiments of the present utility model, by setting the electronic control box 10 as a closed box body, damage of components in the electronic control box 10 due to environmental factors can be avoided, 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 is aggravated, and the heat dissipation efficiency of the first heating device 21 is improved by arranging the heat dissipation component 30 in the electronic control box 10, the heat radiation heat dissipation efficiency of the second heating device 22 and the third heating device 23 is improved by arranging the first opening 111 and the second opening 112, and the heat dissipation efficiency of the third heating device 23 is improved by arranging the heat dissipation component 40, 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 the second aspect of the present utility model includes a housing 200, a refrigerant circulation system, an air supply fan 600, an air exhaust fan 700, and the electronic control unit 100 in the above embodiments.

Wherein, the shell 200 is internally provided with an air supply channel and an air exhaust channel which are isolated from each other, the refrigerant circulation system comprises a compressor 300, a first heat exchanger 400, a second heat exchanger 500 and a first heat exchanger 400, the air supply channel is arranged on the first heat exchanger 400, the air exhaust channel is arranged on the second heat exchanger 500, 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 and 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, and the refrigerant flow path of the refrigerant circulation system is communicated with the refrigerant pipe 31.

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.

The electronic control unit 100 according to the embodiment of the present application may be disposed in the exhaust duct, but is not limited thereto, and for example, the electronic control unit 100 may be disposed 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.

In some embodiments, the inlet and outlet ends of the refrigerant tube 31 are respectively connected to the inlet and/or outlet of the evaporator, so as to realize cooling of the electronic control box 10 and the first heating device 21 through a relatively low-temperature flow path in the refrigerant flow path, thereby improving cooling efficiency and cooling effect.

In some embodiments, the refrigerant of the refrigerant cycle system comprises carbon dioxide.

For example, for 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, the electric power is increased, and the heat 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 heat dissipation component 30, the heat dissipation component 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 adverse factors such as kitchen high temperature environment, high power component working heat accumulation, closed space, etc. to improve the working stability and the 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 (17)

1. An electrically controlled component, comprising:

the electronic control box is internally provided with a cavity;

the circuit assembly is arranged in the cavity and comprises a circuit board and a first heating device arranged on the circuit board;

the heat dissipation assembly comprises a refrigerant pipe, a part of the refrigerant pipe stretches into the electric control box and is in heat transfer fit with the first heating device, a part of the refrigerant pipe is in heat transfer fit with the electric control box, and a part of the refrigerant pipe stretches out of the electric control box to be used for being communicated with a refrigerant flow path outside the electric control box.

2. The electrical control component of claim 1, wherein the electrical control box comprises a body portion defining the chamber therein and an extension portion extending outwardly from an edge of the body portion, the refrigerant tube cooperating with the extension portion to transfer heat with the electrical control box through the extension portion.

3. The electrical control component of claim 2, wherein the extension includes a first extension wall and a second extension wall, the refrigerant tube being sandwiched between the first extension wall and the second extension wall.

4. The electronic control unit according to claim 3, wherein the first extension wall has a relief portion protruding in a direction away from the second extension wall, a relief hole is formed between the relief portion and the second extension wall, and the refrigerant pipe is disposed through the relief hole.

5. The electrically controlled member according to claim 3, wherein the refrigerant tube includes a plurality of tube segments arranged in parallel, each of the tube segments being sandwiched between the first extension wall and the second extension wall.

6. The electrical control component of claim 2, wherein heat dissipating silicone grease is disposed between the coolant tube and the extension.

7. An electrically controlled member according to claim 3, wherein the first and second extension walls are fixedly connected by a fastener or a snap-fit.

8. The electrical control component of claim 2, wherein the electrical control box comprises an inner shell and an outer shell overlaying the inner shell, the inner shell being an insulating shell, the outer shell being a metal shell, the extension being a portion of the outer shell.

9. The electronic control component of claim 1, wherein the heat dissipating assembly further comprises a heat conducting plate, the heat conducting plate is disposed on a side of the first heat generating device away from the circuit board, and a portion of the refrigerant tube is embedded in the heat conducting plate to transfer heat with the first heat generating device through the heat conducting plate.

10. The electronic control component according to claim 1, wherein the circuit assembly further comprises a second heat generating device which is arranged on the circuit board and is positioned in the electronic control box, the second heat generating device is higher than the first heat generating device in the thickness direction of the circuit board, the electronic control box comprises an inner shell and an outer shell which covers the inner shell, the inner shell is an insulating shell and is provided with a first opening, the end part of the second heat generating device, which is far away from the circuit board, corresponds to the first opening, and the outer shell is a metal shell and covers and seals the first opening.

11. The electrical control component of claim 10, wherein the second heat generating device comprises a first inductive device and a first capacitive device, the first openings being a plurality of spaced apart, the first inductive device and the first capacitive device corresponding to different ones of the first openings, respectively.

12. The electrical control component of claim 10, wherein the second heat generating device comprises a first inductive device, the electrical control box comprises a first box wall located on a side of the second heat generating device away from the circuit board, a portion of the first box wall protrudes toward a direction away from the circuit board to form a protrusion, an inner side of the protrusion forms an escape cavity, and at least a portion of the first inductive device is received in the escape cavity.

13. The electronic control component of claim 1, wherein the circuit assembly further comprises a third heat generating device disposed on the circuit board and disposed in the electronic control box, a heat dissipating member is further disposed in the electronic control box, the heat dissipating member covers a side of the third heat generating device, which is far away from the circuit board, so as to be in heat transfer fit with the third heat generating device, and the heat dissipating member comprises a plurality of heat dissipating fins disposed at intervals.

14. The electronic control of claim 13, wherein the electronic control box comprises an inner shell and an outer shell covering the inner shell, the inner shell is an insulating shell and is provided with a second opening, the end of the heat dissipation element, which is far away from the circuit board, corresponds to the second opening, and the outer shell is a metal shell and covers and closes the second opening.

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

16. An air conditioner is characterized by comprising a shell, a refrigerant circulating system, an air supply fan, an air exhaust fan and an electric control component according to any one of claims 1-15, wherein the shell is internally provided with an air supply air duct and an air exhaust air duct which are mutually isolated, the refrigerant circulating system comprises a compressor, a first heat exchanger, a second heat exchanger and 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 used as a condenser and an evaporator, an inlet of the air supply fan is communicated with the air supply air duct and an outlet of the air supply fan is communicated to the indoor side, 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, and a refrigerant flow path of the refrigerant circulating system is communicated with a refrigerant pipe.

17. The air conditioner as set forth in claim 16, wherein inlet and outlet ends of said refrigerant pipe are connected to an inlet and/or an outlet of said evaporator, respectively; and/or the refrigerant of the refrigerant cycle system comprises carbon dioxide.