CN213089964U - Top air-out type air conditioner outdoor unit - Google Patents
Top air-out type air conditioner outdoor unit Download PDFInfo
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- CN213089964U CN213089964U CN202021016541.0U CN202021016541U CN213089964U CN 213089964 U CN213089964 U CN 213089964U CN 202021016541 U CN202021016541 U CN 202021016541U CN 213089964 U CN213089964 U CN 213089964U
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Abstract
The utility model provides a top air-out formula air condensing units, include: the top of the shell is provided with a top air outlet; the compressor is arranged in the shell and used for compressing the refrigerant; the outdoor heat exchanger is arranged in the shell and used for refrigerant flowing heat exchange; the outdoor fan is arranged in the shell and used for driving air to exchange heat with the outdoor heat exchanger; the electric control box is internally provided with a circuit board, the circuit board is used for controlling the compressor and the outdoor fan to operate, and at least a first heat dissipation area and a second heat dissipation area are formed on the circuit board; the air-cooled heat dissipation assembly is used for absorbing heat of the first heat dissipation area by utilizing airflow generated by the outdoor fan; and the refrigerant heat dissipation assembly is used for directly absorbing the heat of the second heat dissipation area by using the refrigerant. The utility model provides an outdoor unit realizes that the circuit board can dispel the heat fast, improves the use reliability of circuit board to improve the operational reliability of top air-out formula air condensing units.
Description
Technical Field
The utility model relates to an air conditioner technical field especially relates to top air-out formula air condensing units.
Background
Air conditioners are household appliances commonly used in daily life, and are divided into wall-mounted air conditioners and cabinet air conditioners. Among them, an air conditioner generally includes an indoor unit installed at an indoor side and an outdoor unit installed at an outdoor side. The outdoor units are further divided into side-outlet outdoor units and top-outlet outdoor units according to the air outlet mode. Among them, the top outlet outdoor unit is generally applied to a central air conditioner.
A top-outlet outdoor unit in the prior art generally includes a casing, and a compressor, a heat exchanger, an outdoor fan, an electric control box, and other components mounted in the casing. And in the working process, the outdoor unit exchanges heat with the outside air, and the heat exchanged air is output from the top. Meanwhile, a circuit board in the electric control box needs to meet the functions of supplying power to the outdoor unit and controlling the operation of related components, and under the normal condition, the circuit board is provided with a variable frequency driving module and a fan driving module, and meanwhile, the variable frequency driving module and the fan driving module are cooled by matching with air flow formed by an outdoor fan.
However, the heating values of the variable frequency driving module and the fan driving module are different in the operation process. The frequency conversion driving module generates more heat. Under the condition of overhigh ambient temperature, the frequency conversion driving module can not quickly and effectively dissipate heat, so that the frequency conversion driving module is overhigh in temperature and is shut down or even burnt out, and the use reliability of the outdoor unit is lower. In view of this, how to design an air conditioner technology of carrying out rapid cooling in order to improve off-premises station operational reliability to the automatically controlled box of off-premises station is the utility model aims to solve the technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a top air-out formula air condensing units realizes that the circuit board can dispel the heat fast, improves the use reliability of circuit board to improve top air-out formula air condensing units's operational reliability.
In some embodiments of the present application, an outdoor unit of a top-discharge type air conditioner for connecting an indoor unit of an air conditioner includes:
the top of the shell is provided with a top air outlet;
a compressor disposed in the housing and compressing a refrigerant;
the outdoor heat exchanger is arranged in the shell and used for refrigerant flowing heat exchange;
an outdoor fan disposed in the case and configured to drive air to exchange heat with the outdoor heat exchanger;
the electric control box is internally provided with a circuit board, the circuit board is used for controlling the compressor and the outdoor fan to operate, and at least a first heat dissipation area and a second heat dissipation area are formed on the circuit board;
the air-cooled heat dissipation assembly is used for absorbing heat of the first heat dissipation area by utilizing airflow generated by the outdoor fan;
and the refrigerant heat dissipation assembly is used for directly absorbing the heat of the second heat dissipation area by using a refrigerant.
The air-cooled heat dissipation assembly and the refrigerant heat dissipation assembly are arranged in the shell, the air-cooled heat dissipation assembly can take away absorbed heat by depending on air flow, the refrigerant heat dissipation assembly can directly absorb and take away heat released by the circuit board by using a refrigerant, for the first heat dissipation area with less heat generated by the circuit board, the air-cooled heat dissipation assembly is used for absorbing and dissipating heat, for the second heat dissipation area with more heat generated by the circuit board, the heat released by the second heat dissipation area is quickly absorbed and taken away by the refrigerant flowing through the refrigerant heat dissipation assembly, so that different quick heat dissipation requirements of the circuit board are met, the temperature of the circuit board can be controlled within a reasonable temperature range, the aging degree of the circuit board due to high temperature can be reduced, the use reliability of the circuit board is further improved, and the operation reliability of the top-outlet type air conditioner outdoor unit is improved.
In some embodiments of the present application, the circuit board is vertically disposed, the air-cooling heat dissipation assembly is located on the back of the first heat dissipation area, and the refrigerant heat dissipation assembly is located on the back of the second heat dissipation area.
In some embodiments of the present application, the air-cooled heat dissipation assembly is located above the refrigerant heat dissipation assembly.
In some embodiments of the present application, the refrigerant heat dissipation assembly includes:
a heat conducting plate for conducting heat;
the refrigerant heat dissipation part is provided with a refrigerant channel for flowing of a refrigerant;
the heat-conducting plate is sandwiched between the refrigerant heat-dissipating component and the circuit board, and is in heat-conducting connection with the refrigerant heat-dissipating component and the circuit board respectively. The heat conducting plate can be made of materials with excellent heat conducting performance, such as aluminum or copper.
In some embodiments of the present application, the coolant heat dissipation member includes:
a heat conducting block for conducting heat;
the refrigerant pipe is used for transmitting a refrigerant;
the refrigerant pipe is arranged on the heat conducting block, and the heat conducting block is arranged on the heat conducting plate.
In some embodiments of the present application, the refrigerant pipe is connected in series in the refrigeration loop of the air conditioner, and the heat conduction block may also be made of materials with excellent heat conduction performance, such as aluminum or copper.
In some embodiments of the present application, the electric control box is provided with a mounting opening, and the heat conducting plate is disposed in the mounting opening.
In some embodiments of the present application, a heat conducting gasket is further disposed between the heat conducting plate and the refrigerant heat dissipating member.
In some embodiments of the present application, the heat conducting plate is further provided with a clamping groove, and the refrigerant heat dissipation assembly is clamped in the clamping groove.
In some embodiments of the present application, the heat conducting plate is provided with two guiding portions, the guiding portions protrude from the heat conducting plate, and the clamping groove is formed between the two guiding portions.
In some embodiments of the present application, two of the guides are arranged relatively obliquely away from each other.
In some embodiments of the present application, the circuit board is provided with a mounting hole, and the heat conducting plate is provided with a threaded hole; the refrigerant heat dissipation assembly further comprises a guide cover, the guide cover is inserted into the mounting hole, and a screw penetrates through the guide cover and is in threaded connection with the threaded hole.
In some embodiments of the present application, a claw is provided on an outer wall of the guide cover, and the guide cover is clamped in the mounting hole through the claw.
In some embodiments of the present application, the guiding cover is made of an insulating material such as plastic.
In some embodiments of the present application, an end of the guiding cover located outside the circuit board is in a bell mouth structure.
In some embodiments of the present application, the circuit board is formed with a plurality of second heat dissipation areas, the top-outlet outdoor unit of an air conditioner includes a plurality of refrigerant heat dissipation assemblies matched with the second heat dissipation areas, and the refrigerant pipes in the plurality of refrigerant heat dissipation assemblies are connected in series.
In some embodiments of the present application, the air-cooled heat dissipation assembly is a heat dissipation fin disposed on the circuit board.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a top-discharge type outdoor unit of an air conditioner;
fig. 2 is a second schematic structural view of an embodiment of a top-discharge type outdoor unit of an air conditioner;
FIG. 3 is a schematic diagram of the circuit board of FIG. 1;
FIG. 4 is an assembly view of the air-cooled heat sink assembly, the coolant heat sink assembly and the circuit board of FIG. 1;
FIG. 5 is an exploded view of the refrigerant heat sink assembly of FIG. 1;
FIG. 6 is one of the schematic structural views of the heat-conducting plate of FIG. 1;
FIG. 7 is a second schematic diagram of the structure of the heat-conducting plate in FIG. 1;
FIG. 8 is a schematic view of the structure of the guide housing of FIG. 1;
fig. 9 is an assembly view of an air-cooling heat dissipating assembly, a refrigerant heat dissipating assembly and a circuit board in another embodiment of the outdoor unit of the top-discharge type air conditioner;
fig. 10 is a second assembly diagram of an air-cooled heat dissipating assembly, a refrigerant heat dissipating assembly and a circuit board in another embodiment of the outdoor unit of the top-discharge type air conditioner.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "upper," "lower," "front," "back," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The present embodiment provides an air conditioner that performs a cooling and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The cooling and heating cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant medium to the air that has been conditioned and heat-exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigerating effect by heat exchange with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor, an outdoor heat exchanger, and an outdoor fan, the indoor unit of the air conditioner includes a portion of an indoor heat exchanger and an indoor fan, and a throttling device (such as a capillary tube or an electronic expansion valve) may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. The air conditioner performs a heating mode when the indoor heat exchanger functions as a condenser, and performs a cooling mode when the indoor heat exchanger functions as an evaporator.
The indoor heat exchanger and the outdoor heat exchanger are switched to be used as a condenser or an evaporator, a four-way valve is generally adopted, and specific reference is made to the arrangement of a conventional air conditioner, which is not described herein again.
The refrigeration working principle of the air conditioner is as follows: the compressor works to enable the interior of the indoor heat exchanger (in the indoor unit, the evaporator at the moment) to be in an ultralow pressure state, liquid refrigerant in the indoor heat exchanger is rapidly evaporated to absorb heat, air blown out by the indoor fan is cooled by the coil pipe of the indoor heat exchanger to become cold air which is blown into a room, the evaporated and vaporized refrigerant is compressed by the compressor, is condensed into liquid in a high-pressure environment in the outdoor heat exchanger (in the outdoor unit, the condenser at the moment) to release heat, and the heat is dissipated into the atmosphere through the outdoor fan, so that the refrigeration effect is achieved by circulation.
The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor to become high-temperature and high-pressure gas, and the high-temperature and high-pressure gas enters the indoor heat exchanger (the condenser at the moment), is condensed, liquefied and released heat to become liquid, and simultaneously heats indoor air, so that the aim of increasing the indoor temperature is fulfilled. The liquid refrigerant is decompressed by the throttling device, enters the outdoor heat exchanger (an evaporator at the moment), is evaporated, gasified and absorbs heat to form gas, absorbs the heat of outdoor air (the outdoor air becomes cooler) to form gaseous refrigerant, and enters the compressor again to start the next cycle.
Referring to fig. 1 to 8, according to some embodiments of the present application, an outdoor unit of a top-discharge type air conditioner for connecting an indoor unit of an air conditioner includes: the air-cooled heat dissipation device comprises a shell 1, a compressor (not shown), an outdoor heat exchanger 2, an outdoor fan 3, an electric control box 4, an air-cooled heat dissipation assembly 6 and a refrigerant heat dissipation assembly 5.
The compressor is disposed in the casing 1 and configured to compress a refrigerant, a top air outlet 11 is formed at a top of the casing 1, and the outdoor fan 3 is located below the top air outlet 11. And the outdoor heat exchangers 2 are distributed around the inner side wall of the shell 1 and are used for refrigerant flowing and heat exchanging. The compressor and the outdoor heat exchanger 2 are connected with an indoor heat exchanger in an air conditioner indoor unit to form a refrigerating loop for refrigerant flowing.
In addition, a circuit board 41 is arranged in the electronic control box 4, and the circuit board 41 is used for controlling the compressor and the outdoor fan 3 to operate. At least a first heat dissipation area 401 and a second heat dissipation area 402 are formed on the circuit board 41, and generally, electrical components generating less heat are mounted in the first heat dissipation area 401. For example: a fan driving module for controlling the operation of the outdoor fan 3 may be installed in the first heat radiating section 401, and an inverter driving module for controlling the operation of the compressor may be installed in the second heat radiating section 402.
And the heat generated in the running process of the fan driving module and the variable frequency driving module is different. For the fan driving module generating less heat in the first heat dissipation area 401, the air-cooled heat dissipation assembly 6 is used to dissipate heat of the first heat dissipation area 401.
Specifically, the heat generated by the fan driving module is transferred to the air-cooled heat dissipation assembly 6 at the first heat dissipation area 401. And the air-cooled heat dissipation assembly 6 takes away heat absorbed by the air-cooled heat dissipation assembly 6 quickly by utilizing air flow under the action of air flow flowing in the shell 1 so as to meet the heat dissipation requirement of the fan driving module of the first heat dissipation area 401.
For the variable frequency driving module with more heat generated in the second heat dissipation area 402, the heat dissipation process is performed on the second heat dissipation area 402 through the refrigerant heat dissipation assembly 5.
Specifically, the heat generated by the variable frequency driving module is transferred to the refrigerant heat dissipation assembly 5 at the second heat dissipation area 402. The cooling medium heat dissipation assembly 5 directly absorbs the heat released by the second heat dissipation area 402 of the circuit board 41 by the cooling medium flowing in the refrigeration circuit. The refrigerant flowing circularly can quickly take away a large amount of heat released by the variable frequency driving module, and further meets the requirement of quick heat dissipation of the second heat dissipation area 402 in the circuit board 41.
In another embodiment of the present application, the circuit board 41 is vertically disposed, and the air-cooled heat dissipating assembly 6 and the coolant heat dissipating assembly 5 are located on the back of the circuit board 41. Specifically, the circuit board 41 is vertically arranged to meet the installation requirements of the top-outlet type outdoor unit of the air conditioner, and the air-cooled heat dissipation assembly 6 and the refrigerant heat dissipation assembly 5 are installed on the back of the circuit board 41, so that an operator can conveniently maintain the circuit board 41 from the front of the casing 1.
The air-cooled heat dissipation assembly 6 is located at the back of the first heat dissipation area 401, and the refrigerant heat dissipation assembly 5 is located at the back of the second heat dissipation area 402. The air-cooled heat dissipating assembly 6 is located above the refrigerant heat dissipating assembly 5, and the air-cooled heat dissipating assembly 6 generally takes the form of heat dissipating fins disposed on the circuit board 41 to dissipate heat using flowing air. The air-cooled radiating assembly 6 is positioned above the refrigerant radiating assembly 5, and can play a certain waterproof role above the refrigerant radiating assembly 5.
In some embodiments of the present application, in order to enable heat released by the circuit board 41 to be directly and efficiently absorbed and taken away by the refrigerant heat dissipation assembly 5, the refrigerant heat dissipation assembly 5 includes: a heat-conducting plate 51 and a refrigerant heat-radiating member 52.
As for the heat conductive plate 51, it is used for conducting heat. For example: can be made of materials with good heat-conducting property, such as: aluminum or copper and other materials with excellent heat-conducting property.
The refrigerant heat dissipating member 52 has a refrigerant flow passage formed therein for flowing a refrigerant; the refrigerant flowing into the refrigerating circuit in the refrigerant flow passage absorbs heat to take away heat.
The heat conductive plate 51 is sandwiched between the refrigerant heat-radiating member 52 and the circuit board 41, and the heat conductive plate 51 is thermally connected to the refrigerant heat-radiating member 52 and the circuit board 41, respectively. The heat conducting plate 51 is located at the back of the second heat dissipation area 402, and the heat generated by the up-conversion driving module of the circuit board 41 is directly absorbed by the heat conducting plate 51, and the heat is transferred to the refrigerant heat dissipation part 52 by utilizing the excellent heat conducting performance of the heat conducting plate 51. Because flowing refrigerants pass through the refrigerant heat radiating part 52, the flowing refrigerants absorb heat conducted by the heat conducting plate 51, and further the refrigerants directly absorb heat of the circuit board 41, so that the purpose of quickly radiating heat is achieved.
In other embodiments of the present application, the coolant heat dissipation part 52 includes: a heat conduction block 521 and a refrigerant pipe 522.
Similarly, the heat-conducting block 521 may be made of a material having excellent heat-conducting property, such as aluminum or copper, and is used for conducting heat. The refrigerant pipe 522 is used to transmit the refrigerant. The refrigerant pipe 522 is provided on the heat-conducting block 521, and the heat-conducting block 521 is provided on the heat-conducting plate 51.
The heat conducting plate 51 absorbs heat generated from the circuit board 41 and transfers the heat to the cooling medium pipe 522, and the cooling medium flowing through the cooling medium pipe 522 absorbs heat and rapidly takes away the heat.
In order to increase the heat conduction area, the refrigerant pipe 522 may be sandwiched between the heat conduction block 521 and the heat conduction plate 51, on one hand, one side of the refrigerant pipe 522 directly contacts with the heat conduction plate 51 to absorb heat, and on the other hand, the heat conduction block 521 absorbs heat conducted by the heat conduction plate 51 and is absorbed by the other side of the refrigerant pipe 522 in a heat conduction manner, thereby improving the heat conduction efficiency.
In addition, in order to increase the heat conduction area of the refrigerant pipe 522, the refrigerant pipe 522 may be wrapped by the heat conduction block 521, that is, a groove is formed in the heat conduction block 521, and the refrigerant pipe 522 passes through the groove, so that the pipe wall circumference of the refrigerant pipe 522 is uniformly contacted with the heat conduction block 521 well, and thus, the heat conduction area of the refrigerant pipe 522 can be effectively increased, and the heat dissipation efficiency is improved. Or, the refrigerant pipe 522 is formed in the heat-conducting block 521 in an internal pipe expansion manner, and the refrigerant pipe 522 is formed behind the heat-conducting block 521, so that the refrigerant pipe 522 and the heat-conducting block 521 are in interference fit, and the heat-conducting efficiency is better.
In some embodiments of the present disclosure, for the manner of flowing the refrigerant into the refrigerant pipe 522, the refrigerant pipe 522 may be connected in series in the refrigeration circuit of the air conditioner. Thus, after the compressor is started, a refrigerant flows through the refrigerant pipe 522, and the heat dissipation performance is improved to the maximum extent.
The refrigeration circuit configured for the air conditioner itself includes the compressor, the outdoor heat exchanger 2, the throttling device and the indoor heat exchanger which are connected together based on the description above, meanwhile, in order to realize the switching of the refrigeration and heating modes, a four-way valve is configured in the refrigeration circuit to realize the switching of the operation modes of the air conditioner, and the refrigerant flowing form and the specific control mode of the refrigeration circuit of the air conditioner are not limited and described herein, and the configuration of the conventional air conditioner may be referred to.
The refrigerant pipe 522 is connected between the outdoor heat exchanger 2 and the indoor heat exchanger, and uses the refrigerant flowing between the outdoor heat exchanger 2 and the indoor heat exchanger. For the throttling device in the refrigeration circuit, electronic expansion valves may be respectively disposed at two ends of the refrigerant pipe 522, so that the requirement of normal operation of the refrigeration circuit is met by controlling the opening degrees of the electronic expansion valves at two sides under the condition of switching modes of the air conditioner, and meanwhile, the requirement of the refrigerant pipe 522 on heat dissipation of the circuit board 41 is met.
The electronic expansion valve is divided into an indoor expansion valve and an outdoor expansion valve. The following description will be made for different operation modes of the air conditioner.
During refrigeration operation, the exhaust gas of the compressor enters the outdoor heat exchanger 2 through the four-way valve, heat is condensed and released in the outdoor heat exchanger 2, and the condensed liquid refrigerant is higher than the ambient temperature because the heat is released to the outdoor environment in the condensation process, enters the refrigerant pipe 522 through the outdoor expansion valve, is fully opened and is not throttled, so that the temperature of the refrigerant entering the refrigerant pipe 522 is higher than the ambient temperature, and at the moment, the surface of the refrigerant heat dissipation assembly cannot be condensed and exposed; then the refrigerant enters the indoor side, enters the indoor heat exchanger for evaporation and heat absorption after being throttled by the indoor expansion valve to generate a refrigeration effect, and the evaporated refrigerant returns to the outdoor side to enter the compressor to complete a refrigeration cycle.
During heating operation, the exhaust gas of the compressor enters the indoor heat exchanger through the four-way valve, the heat is condensed and released in the indoor heat exchanger to generate a heating effect, the heat is released to the indoor environment in the refrigerant condensation process, the temperature of the condensed liquid refrigerant is higher than the temperature of the indoor environment, the indoor temperature of the common heating operation is higher than the outdoor temperature, and the temperature of the refrigerant is also far higher than the temperature of the outdoor environment; at this time, the indoor expansion valve is fully opened, and no throttling is performed, so that the refrigerant returns to the outdoor side through the indoor expansion valve and enters the refrigerant heat dissipation assembly 5, the temperature of the refrigerant is still higher than the ambient temperature, and condensation cannot be generated. Then the refrigerant enters an outdoor expansion valve for throttling, enters an outdoor heat exchanger for evaporation after being throttled, and then returns to the compressor to complete the heating cycle.
By adopting the control mode, under the condition of meeting the heat dissipation requirement of the circuit board 41, condensation caused by the over-low temperature of the refrigerant heat dissipation assembly 5 can be avoided, and then the short circuit of the circuit board 41 caused by the condensation can be avoided, so that the use reliability is improved.
In some embodiments of the present application, the electrical control box 4 is provided with a mounting opening (not shown), and the heat-conducting plate 51 is disposed in the mounting opening. Specifically, the electronic control box 4 is convenient to install, and a mounting opening is formed in the electronic control box 4, so that the circuit board 41 in the electronic control box 4 can be directly mounted on the heat conducting plate 51 in the mounting opening, and the heat released by the circuit board 41 can be directly transferred to the heat conducting plate 51.
In some embodiments of the present application, as shown in fig. 5-7, a heat conductive gasket 53 is further disposed between the heat conductive plate 51 and the refrigerant heat dissipation part 52. Specifically, the heat conductive gasket 53 can conduct heat between the heat conductive plate 51 and the refrigerant heat dissipating member 52 to improve heat transfer efficiency therebetween.
In order to connect the heat conducting plate 51 and the refrigerant heat dissipating assembly 5 together, a slot 511 is further disposed on the heat conducting plate 51, and the refrigerant heat dissipating assembly 5 is clamped in the slot 511. Specifically, the heat conducting plate 51 and the refrigerant heat dissipating assembly 5 can be assembled together quickly by means of clamping.
The heat conducting plate 51 is provided with two guiding portions 512, the guiding portions 512 protrude from the heat conducting plate 51, and a slot 511 is formed between the two guiding portions 512. The heat-conducting block 521 of the refrigerant heat-dissipating member 52 is guided and locked in the locking groove 511 via the guiding portions 512 at both sides, so as to complete the assembly of the heat-conducting plate 51 and the refrigerant heat-dissipating member 52.
And a positioning pin 513 can be arranged between the two clamping grooves 511 on the heat conducting plate 51, correspondingly, a positioning hole 5211 is arranged on the heat conducting block 521, and the positioning pin 513 is inserted into the positioning hole 5211 for positioning, so that the assembly is convenient and fast and accurate for operators. In addition, the two guide portions 512 are arranged obliquely away from each other, so that the heat conducting block 521 is installed in a guiding manner by the two oblique guide portions 512.
In some embodiments of the present application, as shown in fig. 3 and 8, the circuit board 41 is provided with a mounting hole 411, and the heat conducting plate 51 is provided with a threaded hole (not labeled); the refrigerant heat dissipation assembly 5 further includes a guide cover 55, the guide cover 55 is inserted into the mounting hole 411, and the screw 54 passes through the guide cover 55 and is screwed into the threaded hole.
Specifically, in the actual assembly process, because the refrigerant radiator assembly needs to be fixed by screwing the screws 54 from the upper side of the circuit board 41, in order to prevent the fixing tool from accidentally damaging the electric devices on the circuit board 41 around the screws when the screws 54 are fixed, the circuit board 41 is provided with the guide cover 55 of the screws 54, the guide cover 55 is used for guiding the screws 54 to penetrate through the mounting holes 411 on the circuit board 41, and then the screws 54 are connected with the lower heat conduction plate 51, so that the heat conduction plate 51 is fixed at the bottom of the circuit board 41.
In some embodiments, a claw 551 is provided on an outer wall of the guide cover 55, and the guide cover 55 is caught in the mounting hole 411 by the claw 551. Specifically, the guide cover 55 can be clamped in the mounting hole 411 through the clamping jaws 551, so that the quick assembly by an operator is facilitated. The guide cover 55 is fixed by the claws 551, is convenient to mount and is not easy to fall off, and has a good protection effect on the circuit board 41.
In an embodiment of the present application, the mounting position of the refrigerant heat dissipation assembly 5 is disposed at the bottom of the electronic control box 4, when the screw 54 is fixed, the screw 54 is placed into the guide cover 55 from top to bottom, the screw 54 falls into the screw hole of the thermal conductive plate 51 along the guide cover 55, and the screw 54 is fastened along the guide cover 55 by the screwdriver.
In one embodiment, the guide cover 55 is made of an insulating material such as plastic, so as to avoid affecting the circuit of the circuit board 41. In another embodiment, the end of the guiding cover 55 located outside the circuit board 41 is a bell mouth structure 552, which can automatically guide the screw 54 to be inserted, and at the same time, the bell mouth structure 552 also reserves a receiving space for the head of the screw 54.
In some embodiments, for the air conditioner with a large number of compressors, two compressors are disposed in the housing 1, and correspondingly, as shown in fig. 9-10, two variable frequency driving modules are disposed on the circuit board 41. At this time, two second heat dissipation areas 402 are formed on the circuit board 41, a coolant heat dissipation assembly 5 is configured on each second heat dissipation area 402, and then the coolant heat dissipation assembly 5 performs targeted heat dissipation on the variable frequency driving modules in the corresponding second heat dissipation areas 402.
The circuit board 41 may be a single integrated board, and certainly, two circuit boards 41 may be used separately.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a top air-out formula air condensing units which is used for connecting the indoor set of air conditioner ware which characterized in that includes:
the top of the shell is provided with a top air outlet;
a compressor disposed in the housing and compressing a refrigerant;
the outdoor heat exchanger is arranged in the shell and used for refrigerant flowing heat exchange;
an outdoor fan disposed in the case and configured to drive air to exchange heat with the outdoor heat exchanger;
the electric control box is internally provided with a circuit board, the circuit board is used for controlling the compressor and the outdoor fan to operate, and at least a first heat dissipation area and a second heat dissipation area are formed on the circuit board;
the air-cooled heat dissipation assembly is used for absorbing heat of the first heat dissipation area by utilizing airflow generated by the outdoor fan;
and the refrigerant heat dissipation assembly is used for directly absorbing the heat of the second heat dissipation area by using a refrigerant.
2. The outdoor unit of claim 1, wherein the circuit board is vertically disposed, the air-cooled heat dissipation assembly is located at a back of the first heat dissipation area, and the refrigerant heat dissipation assembly is located at a back of the second heat dissipation area.
3. The outdoor unit of claim 2, wherein the air-cooling heat dissipation assembly is located above the refrigerant heat dissipation assembly.
4. The outdoor unit of claim 1, wherein the refrigerant heat dissipation assembly comprises:
a heat conducting plate for conducting heat;
the refrigerant heat dissipation part is provided with a refrigerant channel for flowing of a refrigerant;
the heat-conducting plate is sandwiched between the refrigerant heat-dissipating component and the circuit board, and is in heat-conducting connection with the refrigerant heat-dissipating component and the circuit board respectively.
5. The outdoor unit of claim 4, wherein the refrigerant heat-radiating member comprises:
a heat conducting block for conducting heat;
the refrigerant pipe is used for transmitting a refrigerant;
the refrigerant pipe is arranged on the heat conducting block, and the heat conducting block is arranged on the heat conducting plate.
6. The outdoor unit of claim 5, wherein the electric control box is provided with a mounting hole, and the heat conductive plate is disposed in the mounting hole.
7. The outdoor unit of claim 4, wherein the circuit board has a mounting hole, and the heat conductive plate has a threaded hole; the refrigerant heat dissipation assembly further comprises a guide cover, the guide cover is inserted into the mounting hole, and a screw penetrates through the guide cover and is in threaded connection with the threaded hole.
8. The outdoor unit of claim 7, wherein a locking jaw is provided on an outer wall of the guide cover, and the guide cover is locked in the mounting hole by the locking jaw.
9. The outdoor unit of claim 4, wherein the circuit board has a plurality of second heat dissipation areas formed thereon, the outdoor unit comprises a plurality of refrigerant heat dissipation assemblies matched with the second heat dissipation areas, and the refrigerant pipes of the plurality of refrigerant heat dissipation assemblies are connected in series.
10. The outdoor unit of any one of claims 1 to 9, wherein the air-cooled heat dissipation assembly is a heat dissipation fin disposed on the circuit board.
Priority Applications (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757826A (en) * | 2020-06-05 | 2021-12-07 | 青岛海信日立空调系统有限公司 | Top air-out type air conditioner outdoor unit |
| CN115183337A (en) * | 2022-06-23 | 2022-10-14 | 青岛海尔空调电子有限公司 | Method and device for radiating frequency conversion module of air conditioner and air conditioner |
| WO2023016063A1 (en) * | 2021-08-07 | 2023-02-16 | 广东美的暖通设备有限公司 | Electric control box, air conditioner outdoor unit, air conditioner, and method for assembling electric control box |
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2020
- 2020-06-05 CN CN202021016541.0U patent/CN213089964U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757826A (en) * | 2020-06-05 | 2021-12-07 | 青岛海信日立空调系统有限公司 | Top air-out type air conditioner outdoor unit |
| CN113757826B (en) * | 2020-06-05 | 2024-08-27 | 青岛海信日立空调系统有限公司 | Top-air type air conditioner outdoor unit |
| WO2023016063A1 (en) * | 2021-08-07 | 2023-02-16 | 广东美的暖通设备有限公司 | Electric control box, air conditioner outdoor unit, air conditioner, and method for assembling electric control box |
| CN115183337A (en) * | 2022-06-23 | 2022-10-14 | 青岛海尔空调电子有限公司 | Method and device for radiating frequency conversion module of air conditioner and air conditioner |
| CN115183337B (en) * | 2022-06-23 | 2023-11-24 | 青岛海尔空调电子有限公司 | Method and device for radiating frequency conversion module of air conditioner and air conditioner |
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