CN218379665U - Air conditioner - Google Patents

Abstract

The application discloses air conditioning equipment relates to air conditioning technology field for solve air conditioning equipment's automatically controlled box air current radiating mode and make most air current can not flow through electronic component and lead to the poor technical problem of radiating effect. The air conditioning device comprises a refrigerant flow path and an electric control box, the electric control box comprises a box body, an evaporator, a circuit board assembly and a fan assembly, the box body is provided with a containing cavity, the circuit board assembly and the fan assembly are both arranged in the containing cavity, the fan assembly is configured to drive air to flow in the containing cavity, the evaporator is connected with the refrigerant flow path and is configured to cool through phase change of a refrigerant so as to form cooling airflow, the fan assembly comprises at least two fans, the circuit board assembly comprises a plurality of electric elements, and different fans are opposite to different electric elements so as to enable the cooling airflow to dissipate heat of different electric elements.

Description

Air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to an air conditioning device.

Background

The air conditioner is used as widely-used temperature and humidity adjusting equipment, generally comprises a compressor, an evaporator, a condenser, a fan and other components, a refrigerant circulation loop is formed, an electric control box is arranged in the air conditioner to control the operation of each component, and an electronic element is arranged in the electric control box and can generate heat to enable the temperature in the electric control box to be higher during working. In the related art, in order to reduce the temperature of the electronic component, an opening may be provided on the electronic control box to communicate with the outside air, and the electronic control box is usually cooled by an airflow generated by a fan of an air conditioner, or a negative pressure is generated by the fan, so that the airflow in the electronic control box is discharged outwards, thereby implementing convection heat dissipation. However, most of the current airflow heat dissipation methods do not flow through the electronic device, resulting in poor heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

The main purpose of this application is to provide an air conditioning equipment, aims at solving the air current radiating mode among air conditioning equipment's the automatically controlled box at present and makes most air current can not flow through electronic component and lead to the poor technical problem of radiating effect.

In order to achieve the above object, the present application provides an air conditioning apparatus, this air conditioning apparatus includes refrigerant flow path and automatically controlled box, automatically controlled box includes the box body, the evaporimeter, circuit board subassembly and fan subassembly, the box body has and holds the chamber, circuit board subassembly and fan subassembly all set up in holding the intracavity, the fan subassembly is configured to the drive air and is holding the intracavity and flow, the evaporimeter is connected in the refrigerant flow path, and be configured to cool down through the phase transition of refrigerant, in order to form cooling air flow, the fan subassembly includes two at least fans, the circuit board subassembly includes a plurality of electrical component, different fans are relative with different electrical component, so that cooling air flow dispels the heat to different electrical component.

The beneficial effect of this application is: the application provides an automatically controlled box among air conditioning equipment is through setting up a plurality of fans in its inside to utilize each fan to blow directly towards electrical element respectively, thereby guarantee that the cooling air current that forms is whole or most all can pass through electrical element, increase cooling air current and electrical element's area of contact, and then can improve the radiating effect.

On the basis of the technical scheme, the method can be further improved as follows.

As an optional implementation manner, the accommodating cavity is provided with an air duct, the fan may include a first fan and a second fan, and the first fan and the second fan may be disposed at the same end of the air duct and arranged along the width direction of the air duct.

With the arrangement, the first fan and the second fan can form two parallel cooling air flows, and the confluence of the two cooling air flows can cover the section of the whole air duct, so that the heat dissipation effect is improved

As an alternative embodiment, a plurality of electrical components may be arranged in sequence along the extension of the air duct.

So set up, along with cooling airflow's flow, can dispel the heat to a plurality of electric elements in proper order, guarantee that all heating element can all keep at normal operating temperature.

As an alternative implementation, the electrical component may include a reactor and a frequency conversion module, the reactor is opposite to the air outlet of the first fan, and the frequency conversion module is opposite to the air outlet of the second fan.

So set up, can be so that the cooling air current of first fan can directly blow to the reactor, and the cooling air current of second fan can directly blow frequency conversion module for reactor and frequency conversion module have better radiating effect.

As an optional implementation manner, the frequency conversion module at least partially extends to the air outlet of the first fan, and a capacitor is arranged on the frequency conversion module, and the capacitor is opposite to the air outlet of the first fan.

So set up, can dispel the heat with the help of the cooling air current of first fan to the electric capacity on the frequency conversion module, maintain the operating temperature of electric capacity in reasonable within range.

As an alternative embodiment, the reactor may include a first coil winding, and a line connecting both ends of the first coil winding is perpendicular to a direction of the cooling airflow formed by the first fan.

So set up, can guarantee that the both sides of first coil winding can all effectively remove the cooling air current, keep the radiating equilibrium of reactor whole.

As an alternative embodiment, the electrical component may comprise a filter module, and the filter module may be located on a side of the frequency conversion module facing away from the second fan.

So set up, after the frequency conversion module flows through at the cooling air current of second fan, can dispel the heat to the filtering module after that, holding intracavity space utilization in the improvement, when keeping the overall arrangement rationality, can maintain the operating temperature of filtering module in reasonable range.

As an alternative embodiment, a filter inductor may be provided on the filter module, and the filter inductor has a second coil winding, and a width direction of the second coil winding is parallel to a direction of the cooling airflow formed by the second fan.

So set up, can enlarge the area of contact of filter inductance and cooling air flow, and then improve filter inductance's radiating effect.

As an alternative embodiment, the electrical element may further comprise a transformer, which may be located at a side of the reactor facing away from the first fan.

So set up, can utilize the spatial arrangement transformer of filter inductance side, improve space utilization, the transformer can be flowed through to the cooling air current at first fan simultaneously, maintains the operating temperature of transformer in reasonable within range.

As an alternative embodiment, the first fan and the second fan may be located at the top of the accommodating cavity, so that the cooling air flow flows from top to bottom.

So set up, can keep the smooth and easy nature that the cooling air current that first fan and second fan formed flows, avoid producing the influence each other or produce the vortex.

As an optional implementation manner, the accommodating cavity may be a sealed accommodating cavity, the electronic control box may further include a partition, the partition is disposed in the accommodating cavity and divides the accommodating cavity into a first cavity and a second cavity, the first cavity and the second cavity are communicated end to end so that the air duct forms a circulation air path, the first fan and the second fan may be disposed at the same end of the first cavity, and the electrical component is disposed on one side of the partition facing the first cavity.

With the arrangement, the cooling air flow formed by the first fan and the second fan can circulate in the accommodating cavity, so that the electric element can be continuously radiated.

As an alternative embodiment, the inlet of the evaporator is connected to a low-pressure liquid refrigerant flow path in the refrigerant flow path, and the outlet of the evaporator is connected to a low-pressure gaseous refrigerant flow path in the refrigerant flow path.

As an optional implementation mode, the top of the box body is provided with an air inlet, the bottom of the box body is provided with an air outlet, and the air inlet and the air outlet are both communicated with the outside of the electric control box.

As an optional implementation mode, the box body comprises a box body and a connecting seat, the box body and the connecting seat are detachably connected, the box body and the connecting seat jointly enclose a containing cavity, the evaporator is fixed on the connecting seat, and the circuit board assembly is connected to the box body.

So set up, can introduce outside air current through the fan to blow directly with outside low temperature air current to the electric elements in the automatically controlled box, play good radiating effect.

As an alternative embodiment, the air conditioning device may include an air conditioner internal unit and an air conditioner external unit, which are connected, and an electric control box may be disposed in the air conditioner external unit to control the operation of the air conditioner.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an internal structure of an electric control box in an air conditioning device according to an embodiment of the present disclosure;

FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic diagram illustrating heat dissipation of cooling air flows in an electric control box of an air conditioning device to a reactor according to an embodiment of the present application;

fig. 4 is a schematic diagram of heat dissipation of cooling airflow in an electrical control box of an air conditioning device to a filter module according to an embodiment of the present application.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Electric control box	101	Containing cavity
101a	A first chamber	101b	Second cavity
				110	Box body	111	Connecting seat
120	Spacer	130	Fan blower
				131	First fan	132	Second fan
140	Circuit board assembly	141	Electric reactor
				1411	First coil winding	142	Frequency conversion module
1421	Capacitor with a capacitor element	143	Filtering module
				1431	Filter inductor	1432	Second coil winding
144	Transformer	151	Evaporator and evaporator assembly
				160	Heat radiator	200	Cooling air flow

Detailed Description

In the related art, an electric control box is usually disposed in an air conditioner to control operations of components such as a compressor and a fan, and an electronic component is disposed in the electric control box, and the electronic component generates heat during operation to make the temperature in the electric control box higher, so that the electronic component needs to be cooled. In order to reduce the temperature of the electronic components, an opening may be provided on the electronic control box to communicate with the outside air, and the electronic control box is usually cooled by an airflow generated by a fan of an air conditioner, or a negative pressure is generated by the fan, so that the airflow in the electronic control box is discharged outwards, thereby achieving convection heat dissipation. However, according to fluid dynamics, fluid tends to pass through a channel with small resistance, so that most of the air flow in the electric control box is directly exhausted out of the electric control box without passing through electric elements, and the heat dissipation effect is poor.

In view of this, according to the embodiment of the present application, the plurality of fans are disposed inside the cooling device, and the heat transfer amount is in a direct proportion relation with the heat transfer area according to the newton's law of cooling, that is, in direct proportion with the air volume passing through the electrical component, and each fan is used to directly blow towards the electrical component, so that all or most of the formed cooling air flow can pass through the electrical component, the contact area between the cooling air flow and the electrical component is increased, and the heat dissipation effect can be further improved.

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 isbase:Sub>A schematic view of an internal structure of an electric control box in an air conditioning device according to an embodiment of the present application, and fig. 2 isbase:Sub>A sectional view taken alongbase:Sub>A directionbase:Sub>A-base:Sub>A in fig. 1.

As shown in fig. 1 and fig. 2, the present embodiment provides an electronic control box 100, where the electronic control box 100 includes a box body 110, a circuit board assembly 140, and a fan assembly, the box body 110 has a containing cavity 101, the circuit board assembly 140 and the fan assembly are both disposed in the containing cavity 101, the fan assembly is configured to form a cooling airflow 200 in the containing cavity 101, the fan assembly includes at least two fans 130, the circuit board assembly 140 includes a plurality of electrical elements, different fans 130 are opposite to different electrical elements, so that the cooling airflow 200 dissipates heat of different electrical elements, and the box body 110 can protect the circuit board assembly 140 and the fans 130 in the containing cavity 101.

In order to improve the rationality of the space layout in the accommodating cavity 101, the plurality of electric elements can be arranged along the flowing direction of the cooling airflow 200, when the fan 130 is started, the cooling airflow 200 can be formed in the accommodating cavity 101, the cooling airflow 200 can flow in the accommodating cavity 101 and can sequentially flow through the plurality of electric elements, and the temperature of the cooling airflow 200 can be lower than the surface temperature of the circuit board assembly 140 during operation, so that when the cooling airflow 200 flows through the electric elements, heat can be exchanged with the electric elements, the heat of the electric elements can be taken away, the temperature of each heating electric element is reduced, and a heat dissipation effect is achieved.

It is understood that when the electrical control box 100 is applied to an air conditioner, the circuit board assembly 140 is used to control the operation of the air conditioner, for example, the operation of a compressor, a fan, etc. in the air conditioner, and furthermore, the circuit board assembly 140 can control the operation of each fan 130 in the electrical control box 100.

It should be noted that, in the electronic control box 100 provided in the embodiment of the present application, the plurality of fans 130 are disposed inside the electronic control box, and each fan 130 is used to directly blow towards the electrical element, so that all or most of the formed cooling airflow 200 can pass through the electrical element, the contact area between the cooling airflow 200 and the electrical element is increased, and further the heat dissipation effect can be improved.

The flow direction and path of the cooling air flow 200 and the structural layout of the inside of the receiving chamber 101 will be described in detail first.

With continued reference to fig. 1 and 2, it can be understood by those skilled in the art that the circuit board assembly 140 may include a circuit board and a plurality of electrical components disposed on the circuit board and electrically connected to form a circuit structure, the cooling air flow 200 flows in a direction parallel to a board surface of the circuit board, the electrical components generate heat when the circuit board assembly 140 is in operation, and the cooling air flow 200 may remove heat by blowing the electrical components when flowing through the circuit board assembly 140.

In a possible implementation manner, a wind channel is provided in the accommodating cavity 101, the cooling airflow 200 flows along the wind channel, the fan 130 may include a first fan 131 and a second fan 132, and the first fan 131 and the second fan 132 may be disposed at the same end of the wind channel and arranged along the width direction of the wind channel.

It can be understood that the air inlets of the first fan 131 and the second fan 132 are located on the same side, the air outlets of the first fan 131 and the second fan 132 are also located on the same side, and the air outlets of the first fan 131 and the second fan 132 face to the respective electrical components, when the first fan 131 and the second fan 132 are activated, the first fan 131 and the second fan 132 may form two cooling air flows 200 parallel to each other, and the confluence of the two cooling air flows 200 may cover the cross section of the whole air duct, thereby improving the heat dissipation effect.

It should be noted that, the plurality of electrical components may be sequentially arranged along the extending direction of the air duct, and along with the flow of the cooling air flow 200, the plurality of electrical components may be sequentially cooled, so as to ensure that all the heating components may be kept at the normal operating temperature.

In some embodiments, the electric element may include a reactor 141 and a frequency conversion module 142, the reactor 141 is opposite to the air outlet of the first fan 131, and the frequency conversion module 142 is opposite to the air outlet of the second fan 132, so that the cooling air flow 200 of the first fan 131 may blow the reactor 141 directly, and the cooling air flow 200 of the second fan 132 may blow the frequency conversion module 142 directly, so that the reactor 141 and the frequency conversion module 142 have a good heat dissipation effect.

When the electric control box 100 is applied to an air conditioner, the frequency conversion module 142 can be used for controlling a compressor and a fan, the reactor 141 is electrically connected with the frequency conversion module 142, and the reactor 141 is used for eliminating harmonic waves to improve the shock resistance of a circuit and ensure that the circuit can run stably.

It can be understood that the frequency conversion module 142 at least partially extends to the air outlet of the first fan 131, the capacitor 1421 is disposed on the frequency conversion module 142, and the capacitor 1421 is opposite to the air outlet of the first fan 131, and due to the fact that the heat generation amount of the capacitor 1421 is large, the capacitor on the frequency conversion module 142 can be cooled by the cooling airflow 200 of the first fan 131, and the working temperature of the capacitor is maintained within a reasonable range.

For example, the number of the capacitors 1421 may be multiple, the capacitors 1421 may be arranged in an array, and a space is provided between adjacent capacitors 1421 to ensure a heat dissipation effect.

Fig. 3 is a schematic diagram of heat dissipation of a reactor by cooling airflow in an electric control box in an air conditioning device according to an embodiment of the present application.

Referring to fig. 3 in combination with fig. 1 and 2, for example, the reactor 141 may include a first coil winding 1411, a connection line between two ends of the first coil winding 1411 is perpendicular to a direction of the cooling airflow 200 formed by the first fan 131, so that both sides of the first coil winding 1411 can be ensured to be effectively released from the cooling airflow 200, and the balance of the overall heat dissipation of the reactor 141 is maintained.

In a possible implementation manner, the electrical component may include the filtering module 143, the filtering module 143 may be located on a side of the frequency conversion module 142 away from the second fan 132, and after the cooling airflow 200 of the second fan 132 flows through the frequency conversion module 142, the filtering module 143 may be subsequently cooled, so as to improve the space utilization rate in the accommodating cavity 101, and maintain the layout rationality while maintaining the working temperature of the filtering module 143 within a reasonable range.

Fig. 4 is a schematic diagram of heat dissipation of the filter module by cooling airflow in the electrical control box in the air conditioning apparatus provided in the embodiment of the present application, please refer to fig. 4, and with reference to fig. 1 and fig. 2, a filter inductor 1431 may be disposed on the filter module 143, the filter inductor 1431 has a second coil winding 1432, a width direction of the second coil winding 1432 is parallel to a direction of the cooling airflow 200 formed by the second fan 132, so that a contact area between the filter inductor 1431 and the cooling airflow 200 may be enlarged, and a heat dissipation effect of the filter inductor 1431 may be further improved.

In addition, the electrical component may further include a transformer 144, the transformer 144 may enable the electronic control box 100 to be applied to different voltage occasions and meet voltage standards of different standards, for example, 220V, 110V, 380V, and the like, the transformer 144 may be located on a side of the reactor 141 facing away from the first fan 131, so that the transformer 144 may be disposed in a space on a side of the filter inductor 1431, and space utilization rate is improved, and meanwhile, the cooling airflow 200 at the first fan 131 may flow through the transformer 144, so as to maintain an operating temperature of the transformer 144 within a reasonable range.

In some embodiments, the first fan 131 and the second fan 132 may be both located at the top of the accommodating cavity 101, and the air outlets of the first fan 131 and the second fan 132 are both facing downward, so that the cooling airflow 200 flows from top to bottom, thereby maintaining the smoothness of the flow of the cooling airflow 200 formed by the first fan 131 and the second fan 132, and avoiding mutual influence or generation of turbulent flow.

It should be noted that, in the embodiment of the present application, the accommodating cavity 101 may be a closed space, or may be a space communicated with the outside, that is, when the fan 130 performs heat dissipation, airflow circulation may be performed inside the accommodating cavity 101, or external airflow forms convection to perform heat dissipation, and the two heat dissipation methods will be described below.

In a possible implementation manner, the accommodating cavity 101 may be a sealed accommodating cavity 101, the electronic control box 100 may further include a partition 120, the partition 120 is disposed in the accommodating cavity 101, the partition 120 may be connected to an inner wall of the accommodating cavity 101, the partition 120 and the inner wall of the accommodating cavity 101 may form a circulating air duct for the cooling air flow 200 to flow, and the circuit board assembly 140 and the fan 130 are respectively located at different positions of the circulating air duct.

It can be understood that the circulating air duct defined by the partition 120 in the accommodating cavity 101 can provide a space and a layout position for installing a plurality of electrical components of the circuit board assembly 140 and the fan 130, and can also provide a guide for the flow of the cooling air flow 200, so that the circulating flow of the cooling air flow 200 in the accommodating cavity 101 can be realized, the temperature of the cooling air flow 200 can be maintained in a reasonable range, and a good heat dissipation effect can be ensured.

In some embodiments, the partition 120 may divide the accommodating chamber 101 into a plurality of mutually-communicated chambers, different chambers constitute a part of the circulating air duct, the plurality of chambers are sequentially communicated end to form a complete circulating air duct, and the fan 130 and the circuit board assembly 140 may be disposed in the same chamber, so that the fan 130 directly blows the electrical component.

For example, the isolation element 120 may be connected to the box body 110 through a fastener, for example, a screw, a bolt, a buckle, or the isolation element 120 may be connected to the box body 110 through a welding method, or the isolation element 120 may be inserted into the accommodating cavity 101, and a guide groove is provided on an inner wall of the accommodating cavity 101 for limiting, and the specific connection method between the isolation element 120 and the box body 110 is not limited in the embodiments of the present application.

It is understood that the partition 120 may divide the accommodating chamber 101 into a first chamber 101a and a second chamber 101b, the first chamber 101a and the second chamber 101b are connected end to end, so that the air duct forms a circulation air path, the first fan 131 and the second fan 132 may be disposed at the same end of the first chamber 101a, the electrical component is disposed at a side of the partition 120 facing the first chamber 101a, and the second chamber 101b may form a return air path of the cooling air flow 200, so that the cooling air flow 200 formed by the first fan 131 and the second fan 132 may circulate in the accommodating chamber 101, thereby continuously dissipating heat of the electrical component.

With continued reference to fig. 1 and fig. 2, as an optional implementation manner, the electronic control box 100 may further include an evaporator 151, the evaporator 151 may be disposed in the air duct, and the evaporator 151 is configured to cool the cooling airflow 200 through phase change of a cooling medium, so that the cooling airflow 200 dissipates heat of the circuit board assembly 140, so that the cooling airflow 200 may be cooled by the evaporator 151, so that the cooling airflow 200 has a lower temperature after flowing through the evaporator 151, and the cooling airflow 200 dissipates heat of the electrical component, thereby maintaining a good continuous heat dissipation effect.

It can be understood that, through setting up evaporimeter 151, cool down the air current of fan 130 at the inside formation of automatically controlled box 100, thereby can utilize cooling air current 200 after the cooling to carry out the forced air cooling heat dissipation to circuit board assembly 140, on the one hand, can guarantee not influenced by external environment, under any operating conditions, when automatically controlled box 100 work and need dispel the heat, the temperature of cooling air current 200 all can be less than the surface temperature of circuit board assembly 140, thereby cooling air current 200 has good air-cooled radiating effect to circuit board assembly 140, on the other hand, the low temperature of evaporimeter 151 only can influence and hold air and the air current in the chamber 101, the air current heat dissipation after utilizing the cooling can avoid circuit board assembly 140 to produce the condensation because of the undercooling, guarantee that circuit board assembly 140 can operate well.

In order to improve the heat dissipation efficiency, a heat sink 160 may be disposed in the electronic control box 100, the heat sink 160 may also be located in the accommodating cavity 101, the heat sink 160 may be understood as an extension of a heat dissipation surface or a heat dissipation structure of the circuit board assembly 140, the heat of the circuit board assembly 140 may be transferred to the heat sink 160, and when the cooling airflow 200 flows through the heat sink 160, the heat may be efficiently taken away, so as to achieve a better heat dissipation effect.

For example, the heat sink 160 may be independent from the circuit board assembly 140, and when the heat sink 160 is assembled, the heat sink 160 may be mounted on a side of the circuit board away from the electrical component, or the heat sink 160 may also be a derivative structure of the circuit board, and is fixedly connected to the circuit board or integrally formed with the circuit board, which is not limited in this embodiment of the present application.

In one possible implementation, the heat sink 160 and the circuit board assembly 140 may be located on different sides of the spacer 120, and the heat sink 160 is configured to dissipate heat of the circuit board assembly 140 through heat conduction, so that by using the heat sink 160, heat of the circuit board assembly 140 can be conducted, thereby increasing an effective air-cooling heat dissipation area of the circuit board assembly 140 and improving heat dissipation efficiency.

It is understood that the heat sink 160 may be located inside the second cavity 101b, and the spacer 120 may be provided with an opening, for example, so that the circuit board assembly 140 and the heat sink 160 may contact through the opening, thereby achieving heat conduction from the circuit board assembly 140 to the heat sink 160.

In some embodiments, the heat sink 160 may have a plurality of fins, the fins are spaced apart from each other, and gaps for air flow to circulate are formed between the fins, so that when the cooling air flow 200 flows through the gaps between the fins, heat of the fins can be taken away, and a contact area between the cooling air flow 200 and the fins is increased.

In other embodiments, the heat sink 160 may have a heat dissipation channel, the heat dissipation channel may extend along the flowing direction of the cooling airflow 200, the cooling airflow 200 may pass through the heat sink 160 through the heat dissipation channel, and when the cooling airflow 200 contacts with the inner wall of the heat dissipation channel, the heat of the heat sink 160 may be taken away, so that the heat dissipation effect may be ensured, and the flow of the cooling airflow 200 may be guided.

It should be noted that, when holding chamber 101 and holding chamber 101 for airtight, the inside airtight space that is of automatically controlled box 100, when cooling airflow 200 that holds in chamber 101 flows, can not with the outside air convection of automatically controlled box 100, therefore, outside vapor is difficult for getting into in the automatically controlled box 100, automatically controlled box 100 hold the vapor content in the chamber 101 limited, when evaporimeter 151 carries out the heat absorption cooling to cooling airflow 200, still have dehumidification effect to the air, consequently, be difficult for producing the condensation in automatically controlled box 100.

In a possible implementation manner, an air inlet is disposed at the top of the box body 110, an air outlet is disposed at the bottom of the box body 110, and both the air inlet and the air outlet are communicated with the outside of the electronic control box 100, so that external air flow can be introduced through the fan 130, and the external low-temperature air flow is used to blow directly the electrical elements in the electronic control box 100, thereby achieving a good heat dissipation effect.

It is understood that a waterproof cover (not shown) may be disposed on the air inlet at the top of the box body 110 to achieve waterproof and dustproof effects, and after external air enters the accommodating cavity 101 from the air inlet, the external air flows from top to bottom under the blowing of the fan 130, and sequentially flows through the electric elements to take away heat of the heat generating components.

In a possible implementation manner, the spacer 120 may be plate-shaped, and the spacer 120 may be disposed in the accommodating cavity 101 along a length direction of the accommodating cavity 101, so that the first cavity 101a and the second cavity 101b are arranged side by side along a width direction of the accommodating cavity 101, thereby facilitating the fan 130, the heat sink 160, the circuit board assembly 140, and the evaporator 151 to be respectively arranged in the first cavity 101a and the second cavity 101b in a left-right manner, and improving rationality of space distribution.

It is understood that the partition 120 may extend in a vertical direction, the cooling air flow 200 may flow in the vertical direction in the first cavity 101a and the second cavity 101b, and the flow directions of the cooling air flow 200 in the first cavity 101a and the second cavity 101b are opposite, so that the smoothness of the flow of the cooling air flow 200 may be improved.

For example, the cooling airflow 200 may flow from top to bottom in the first cavity 101a, and after entering the second cavity 101b from the bottom of the first cavity 101a, the cooling airflow 200 may flow from bottom to top and return to the first cavity 101a from the top of the second cavity 101b, completing the cycle.

In the air conditioner, the frequency of repairing electronic components on the circuit board assembly 140 of the electric control box 100 is high. It is often necessary to disassemble the electrical control box 100 from the inside of the cabinet of the air conditioner to the outside of the cabinet to inspect the electronic components inside the electrical control box 100. In this application, evaporator 151 is disposed in the electric control box, and evaporator 151 is connected to the flow path of the refrigerant system through a refrigerant pipe.

When the electronic components in the electronic control box 100 need to be overhauled, if the electronic control box 100 is integrally disassembled outside the casing, the refrigerant pipeline connected with the evaporator 151 needs to be destructively cut off, and the cooling medium in the refrigerant pipeline needs to be recovered; after the overhaul is finished, when the electric control box 100 is installed in the machine shell, the cut refrigerant pipeline needs to be welded again, and the overhaul process is very complicated.

In the embodiment of the present application, the electronic control box 100 is designed in a split type, and is divided into different components, such as a box body 110 and a connecting seat 111. Electronic components in the electronic control box 100 are arranged in the box body 110, the evaporator 151 is installed in the connecting seat 111, and the evaporator 151 is connected in a refrigerant system flow path through a refrigerant pipeline. Cassette 110 and connecting seat 111 are detachably connected, connecting seat 111 is fixedly installed in the air conditioner, and cassette 110 is movable relative to the connecting seat. Like this, when needs overhaul the electronic components in the automatically controlled box 100, with box body 110 and connecting seat 111 split, just can realize conveniently checking or maintaining the electronic components who sets up at box body 110, and need not dismantle evaporimeter 151, just also avoided cutting off and the loaded down with trivial details process of rewelding because of dismantling the refrigerant pipeline that evaporimeter 151 causes for the dismouting process can both be comparatively simple and easy.

In addition, the electronic control box 100 may be provided inside a casing of an outdoor unit of an air conditioner. Other components of the air conditioning device, such as a compressor, a gas-liquid separator, a complex refrigerant pipeline and the like, can be arranged in the shell. When these parts in the casing need to be overhauled, the electronic control box 100 often needs to be disassembled and assembled, so that the operation space is larger. In the technical scheme of this application, can conveniently dismantle the great box body 110 of automatically controlled box 100 relative volume for it is more convenient to overhaul other parts of off-premises station.

The detachable connection between case 110 and connection holder 111 mainly means that there is a variable relative position between case 110 and connection holder 111, so that case 110 and connection holder 111 are detachable. Wherein, the detachable connection mode between the box body 110 and the connecting seat 111 includes but is not limited to the following:

1. the box body 110 and the connecting seat 111 can only change relative positions, and the two can still be connected before and after being disassembled; the connection between the box body 110 and the connection seat 111 may be, for example, a rotatable connection, or a slidable connection between the two.

2. The case 110 and the connection holder 111 are completely separated in the disassembled state. At this time, the box 110 and the connection holder 111 may be connected without any other structure, and the position of the box 110 can freely move with respect to the connection holder 111.

When the electric control box 100 is applied to an air conditioner, the air conditioner comprises a refrigerant circulating pipeline, the evaporator 151 can be connected into the refrigerant circulating pipeline of the air conditioner, namely, the refrigerant pipeline of the air conditioner can be utilized to play a role of the evaporator 151 in the electric control box 100, so that a heat exchange effect is achieved, according to the working principle of the evaporator, the heat of the cooling air flow 200 in the accommodating cavity 101 can be absorbed by utilizing the phase change of a refrigerant medium, and the cooling effect is achieved.

For example, an inlet of the evaporator 151 may be connected to a low-pressure liquid refrigerant flow path in the refrigerant flow path, and an outlet of the evaporator 151 may be connected to a low-pressure gaseous refrigerant flow path in the refrigerant flow path, so as to ensure a good heat exchange effect and absorb heat of the cooling airflow 200.

It can be understood that the refrigerant flow path in the air conditioning apparatus may be a circulation loop formed by sequentially connecting a compressor, a condenser, an expansion valve, and another evaporator in the air conditioning apparatus, the above components are communicated by a pipeline for the refrigerant to flow through, the air conditioning apparatus performs heat exchange through phase change in a circulation flow process of the refrigerant in the refrigerant flow path to realize a function of cooling or heating, and the evaporator 151 in the electronic control box may be connected in a main flow path of the refrigerant flow path or may be connected in a branch flow path of the refrigerant flow path, which is not specifically limited in the embodiment of the present application.

The air conditioner provided by the embodiment of the application can comprise an air conditioner internal unit and an air conditioner external unit, wherein the air conditioner external unit is communicated with all the air conditioner internal units through pipelines for heat supply exchange medium flowing, and the air conditioner external unit is internally provided with the electric control box in the embodiment so as to control the operation of the air conditioner.

The air conditioner can be a central air conditioner, the indoor air conditioner is arranged indoors, the outdoor air conditioner is arranged outdoors, the indoor air conditioner and the outdoor air conditioner can be multiple, the indoor air conditioners can be arranged in the same indoor space or in different indoor spaces, the outdoor air conditioners can be provided with electric control boxes to control different outdoor air conditioners respectively, communication can be carried out between different outdoor air conditioners, and the outdoor air conditioners are matched with each other to achieve multi-host combined work.

An indoor heat exchanger is generally arranged in an indoor unit of the central air conditioner, an outdoor heat exchanger is generally arranged in an outdoor unit of the central air conditioner, and the indoor heat exchanger and the outdoor heat exchanger can be communicated through a refrigerant pipeline, so that a refrigerant between the indoor heat exchanger and the outdoor heat exchanger can circulate. In the refrigeration process of the central air conditioner, the indoor heat exchanger is an evaporator, and a refrigerant in the evaporator absorbs heat from liquid and changes into a gaseous state; in the process of evaporating and absorbing heat of the refrigerant, the evaporator exchanges heat with air flowing through the evaporator to take away heat in the air in the indoor unit of the central air conditioner, so that the air discharged out of the indoor unit of the central air conditioner is the air after heat release and temperature reduction, and the indoor unit of the central air conditioner blows cold air; meanwhile, the outdoor heat exchanger is a condenser, and a refrigerant in the condenser is changed into a liquid state from a gaseous state; in the process of refrigerant condensation and heat release, the condenser exchanges heat with air in the outdoor unit of the central air conditioner flowing through the condenser, so that the air in the outdoor unit of the central air conditioner brings the heat of the condenser to the outside of the outdoor unit of the central air conditioner, and thus, the refrigeration process is realized.

In the heating process of the central air conditioner, the outdoor heat exchanger is an evaporator, and a refrigerant in the evaporator absorbs heat from a liquid state and changes into a gas state; in the process of evaporating and absorbing heat of the refrigerant, the evaporator exchanges heat with air flowing through the evaporator, and heat carried in the air in the outdoor unit of the central air conditioner is replaced into the refrigerant in the evaporator; meanwhile, the indoor heat exchanger is a condenser, and a refrigerant in the condenser is changed into a liquid state from a gaseous state; in the process of condensing and releasing heat of the refrigerant, the condenser exchanges heat with air in the indoor unit of the central air conditioner flowing through the condenser, so that the air in the indoor unit of the central air conditioner takes away heat carried by the condenser and is discharged to the indoor part outside the indoor unit of the central air conditioner from the indoor unit of the central air conditioner, the indoor unit of the central air conditioner blows hot air, and therefore the heating process is achieved.

The electric control box can be installed in an outdoor unit of a central air conditioner, and the heat exchanger in the electric control box can be communicated with a pipeline through which a heat exchange medium of the air conditioner flows, for example, the heat exchanger is connected in parallel or in series with the heat exchanger of the air conditioner, so that the air flow in the electric control box is cooled by utilizing the phase change of a refrigerant of the air conditioner.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," 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 application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (15)

1. An air conditioning device is characterized by comprising a refrigerant flow path and an electric control box, wherein the electric control box comprises a box body, an evaporator, a circuit board assembly and a fan assembly, the box body is provided with an accommodating cavity, the circuit board assembly and the fan assembly are both arranged in the accommodating cavity, the fan assembly is configured to drive air to flow in the accommodating cavity, and the evaporator is connected to the refrigerant flow path and is configured to cool through phase change of refrigerant to form cooling airflow;

the fan assembly includes at least two fans, and the circuit board assembly includes a plurality of electrical components, different ones of the fans being opposed to different ones of the electrical components such that the cooling airflow dissipates heat from the different ones of the electrical components.

2. An apparatus as claimed in claim 1, wherein an inlet of said evaporator is connected to a low pressure liquid refrigerant flow path of said refrigerant flow paths, and an outlet of said evaporator is connected to a low pressure gaseous refrigerant flow path of said refrigerant flow paths.

3. An air conditioner according to claim 2, wherein the accommodating chamber is provided with an air duct, and the fan comprises a first fan and a second fan, and the first fan and the second fan are arranged at the same end of the air duct and are arranged along the width direction of the air duct.

4. An air conditioning apparatus according to claim 3, wherein a plurality of said electric components are arranged in series along an extending direction of said air duct.

5. An air conditioning apparatus according to claim 4, wherein the electric component includes a reactor disposed opposite to the air outlet of the first fan and an inverter module disposed opposite to the air outlet of the second fan.

6. An air conditioning apparatus according to claim 5, wherein the inverter module extends at least partially to the outlet of the first fan, and a capacitor is provided on the inverter module, the capacitor being opposite to the outlet of the first fan.

7. An air conditioning apparatus according to claim 5 or 6, characterized in that the reactor includes a first coil winding, and a connection line of both ends of the first coil winding is perpendicular to a direction of the cooling airflow formed by the first fan.

8. Air conditioning unit according to claim 5 or 6, characterized in that the electrical components comprise a filter module, which is located on the side of the inverter module facing away from the second fan.

9. An air conditioner according to claim 8, wherein a filter inductor is provided on the filter module, and the filter inductor has a second coil winding, and a width direction of the second coil winding is parallel to a direction of the cooling air flow generated by the second fan.

10. An air conditioning apparatus according to claim 5 or 6, wherein the electric component further includes a transformer, the transformer being located on a side of the reactor facing away from the first fan.

11. An air conditioning unit according to any one of claims 3 to 6, wherein the first fan and the second fan are located at the top of the housing chamber so that the cooling air flows from top to bottom.

12. The air conditioning device according to claim 11, wherein the accommodating chamber is a closed accommodating chamber, the electrical control box further comprises a partition member, the partition member is disposed in the accommodating chamber and divides the accommodating chamber into a first chamber and a second chamber, the first chamber and the second chamber are communicated end to end so that the air duct forms a circulation air path, the first fan and the second fan are disposed at the same end of the first chamber, and the electrical component is disposed on a side of the partition member facing the first chamber.

13. An air conditioning device according to claim 11, wherein the top of the box body is provided with an air inlet, the bottom of the box body is provided with an air outlet, and the air inlet and the air outlet are both communicated with the outside of the electric control box.

14. An air conditioning device according to any one of claims 1-6, wherein the cartridge comprises a cartridge body and a connecting seat, the cartridge body and the connecting seat are detachably connected, and the cartridge body and the connecting seat together enclose the accommodating chamber, wherein the evaporator is fixed to the connecting seat, and the circuit board assembly is connected to the cartridge body.

15. An air conditioning apparatus according to any one of claims 1 to 6, comprising an indoor unit and an outdoor unit connected to each other, wherein the electric control box is provided to the outdoor unit.

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