CN211903096U

CN211903096U - Outdoor machine of air conditioner

Info

Publication number: CN211903096U
Application number: CN202020332548.7U
Authority: CN
Inventors: 王朋; 何延林
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-11-10
Anticipated expiration: 2030-03-17

Abstract

The utility model provides an air condensing units belongs to air conditioning technology field. The air conditioner outdoor unit comprises a shell, a fan and a fan control unit, wherein the shell is provided with two chambers which are a compressor chamber and a fan chamber respectively; the outdoor fan is arranged in the fan cavity; the compressor is arranged in the compressor cavity; the electric control box is arranged in the press cavity and is internally provided with a pressing mechanism; a circuit board; the supporting frame is arranged on the upper surface of the circuit board; the heating module is arranged on the upper surface of the support frame and provided with a pin, and the pin is welded with the circuit board; the radiator is arranged on the upper surface of the heating module and comprises a heat dissipation plate and a refrigerant pipe, a groove is formed in the upper surface of the heat dissipation plate, and the refrigerant pipe is connected into the groove through a pipe pressing process; the heating panel is connected with the supporting frame through a fastener, and the heating module is clamped between the supporting frame and the radiator. The utility model has the advantages of simple connection structure, time and labor saving for dismounting.

Description

Outdoor machine of air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to an air condensing units.

Background

At present, with the development of the residential industry year by year, the requirements on the appearance design and safety of buildings are higher and higher, and most of buildings in new communities are generally provided with air conditioner positions outside the air conditioner positions without adopting a wall hanging mode of an air conditioner outdoor unit bracket, so that the overall attractiveness is ensured. Along with the deterioration of the heat dissipation environment of the air conditioner outdoor unit, the temperature in the building grille is higher than the temperature in the environment outside the building by more than 6 ℃, the electric control heat dissipation of the air conditioner outdoor unit is not facilitated, and the operation reliability of the whole machine is extremely unfavorable. At high ambient temperature, in order to ensure reliable electric control and reduce heat generation, the inverter air conditioner adopts a method of reducing the refrigeration operation frequency to reduce the operation current, thereby reducing the module heat generation. The above method trades the refrigeration capacity for reliability, and cannot meet the requirement of the user on the refrigeration capacity. Therefore, a structure in which a heat sink is fixed to a heat generating module connected to a circuit board has been developed, and at the same time, the heat sink is connected to a refrigerant cycle to dissipate heat.

In the related technology, the refrigerant pipe is fixed in the radiator by adopting a mode of covering the two pressing plates up and down, the refrigerant pipe is not tightly attached and has poor reliability due to the deformation of the refrigerant pipe or the improper fastening of the pressing plates, and heat-conducting silicone grease is required to be coated between the refrigerant pipe and the pressing plates to ensure the radiating effect;

the scheme that the radiator is fixed by screwing screws on the front surface cannot be adopted because the pressing plate needs to be disassembled and assembled, and only the screws can be screwed from the back surface of the circuit board to the direction of the radiator, so that the operation from the back surface is needed during disassembly, assembly, maintenance or maintenance, but the space of the back surface is very small, and the operation is very difficult;

mounting holes with mounting screws are reserved on the heating modules and used for fixing the heating modules and the radiator, however, the number of the heating modules on a circuit board in a part of the air conditioner outdoor unit is large, and each module needs to be fixed by correspondingly screwing, so that time and labor are wasted, and the efficiency is low; moreover, the radiator and the heating module are fixedly connected, and the radiator can be transferred to the heating module when stressed.

Disclosure of Invention

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. For this purpose,

in some embodiments of the utility model, an air condensing units is provided, it includes the radiator of making in being connected to the recess of heating panel with the refrigerant pipe through the pressing pipe technology, has saved a clamp plate to the refrigerant pipe is connected reliably closely with the heating panel.

The utility model discloses an in some embodiments, still provide an air condensing units, it is including convenient in pressing the refrigerant pipe to the heating panel to can guarantee to press the pipe shaping back surfacing's radiator.

The utility model discloses an in some embodiments, still provide an air condensing units, press the refrigerant pipe to become a whole in the heating panel, do not need the dismouting, can adopt the form of the fixed radiator from the top, the big dismantlement installation that makes things convenient for the radiator in space above, avoided bringing the problem that the dismouting is wasted time and energy because of the restriction of automatically controlled box inner circuit board below space.

The utility model discloses an in some embodiments, still provide an air condensing units, set up the support frame between circuit board and the module that generates heat, with radiator and support frame fixed connection to the module clamp that will generate heat is between support frame and radiator, need not the module that generates heat alone again, has improved dismouting efficiency.

The utility model discloses an in some embodiments, still provide an air condensing units, can pass through the support frame with the effort when the radiator atress and transmit module atress influence performance and reliability that generates heat on the circuit board.

In some embodiments of the utility model, still provide an air condensing units, include: the air conditioner comprises a shell, wherein two cavities, namely a compressor cavity and an air blower cavity, are formed in the shell; the outdoor fan is arranged in the fan cavity; the compressor is arranged in the press cavity; and the electric control box is arranged in the press cavity, and is internally provided with: a circuit board; the supporting frame is arranged on the upper surface of the circuit board; the heating module is arranged on the upper surface of the support frame and provided with a pin, and the pin is welded with the circuit board; and the radiator is arranged on the upper surface of the heating module and comprises a heat dissipation plate and a refrigerant pipe, a groove is formed in the upper surface of the heat dissipation plate, and the refrigerant pipe is connected into the groove through a pipe pressing process.

The utility model discloses an in some embodiments, before pressing the pipe, the cross-section girth of refrigerant pipe is C1, and the girth of recess cross-section is C2, and C1 and C2's relation satisfies: 0.8 to C1 and less than or equal to C2 and less than or equal to 1.2 to C1.

In some embodiments of the present invention, before pressing the tube, the refrigerant tube is inserted into the groove and a part of the refrigerant tube protrudes from the groove; after the pipe is pressed, the upper surface of the refrigerant pipe is flush with the upper surface of the heat dissipation plate.

The utility model discloses an in some embodiments, before pressing the pipe, the centre of a circle of refrigerant pipe is less than the groove top of recess.

The utility model discloses an in some embodiments, before pressing the pipe, the cross-section of refrigerant pipe is circular, and the cross-section of recess is convex, and recess satisfies with the poor delta d of diameter of refrigerant pipe: delta d is more than or equal to 0.1mm and less than or equal to 1 mm.

The utility model discloses an in some embodiments, before pressing the pipe, the cross-section of refrigerant pipe is circular, and the cross-section of recess is convex, and the peak of refrigerant pipe satisfies to the distance h1 of recess top surface: h1 is more than or equal to 1mm and less than or equal to 3 mm.

The utility model discloses an in some embodiments, the thickness h2 of recess tank bottom satisfies: h2 is more than or equal to 0.8mm and less than or equal to 3 mm.

In some embodiments of the present invention, the cross-section of the refrigerant pipe is circular, and the cross-section of the groove is arc-shaped or flat arc-shaped.

In some embodiments of the present invention, the notch of the groove narrows.

In some embodiments of the utility model, the notch of recess is equipped with the fillet transition.

In some embodiments of the present invention, the heat dissipation plate is connected by a fastener penetrating from top to bottom.

In some embodiments of the present invention, the fastener sequentially penetrates through the heat dissipation plate and the support frame to connect the heat dissipation plate and the support frame.

In some embodiments of the present invention, the heat generating module is sandwiched between the support frame and the heat sink.

In some embodiments of the present invention, the support frame is embedded with a nut, and the fastener is inserted into the heat dissipation plate and connected to the nut.

The utility model discloses an in some embodiments, the fastener is connected and can dodge the position of the module that generates heat on the support frame.

The utility model discloses an in some embodiments, the module that generates heat has a plurality ofly, and the upper surface of support frame upwards extends has a plurality of archs, and the length direction interval distribution of a plurality of archs along the support frame, the module that generates heat is located between two adjacent archs.

In some embodiments of the present invention, the fastener is attached to the protrusion.

The utility model discloses an in some embodiments, the upper surface of the module that generates heat is a little higher than bellied upper surface, the heating panel with generate heat the upper surface laminating of module.

In some embodiments of the present invention, the heat dissipation plate has two grooves, and the fastening member is located between the two grooves.

In some embodiments of the present invention, one of the heat dissipation plate and the support frame is provided with a guiding hole, and the other is provided with a guiding post, which is matched with the guiding hole.

The utility model discloses an in some embodiments, be equipped with the location scute on the circuit board, under the assembled state, the location scute is located the corner of heating panel.

The utility model discloses an in some embodiments, support frame and circuit board joint, the radiator is connected with the support frame.

In some embodiments of the present invention, the circuit board is provided with a through hole, the supporting frame is provided with an elastic portion, and the lower end of the elastic portion is adapted to the through hole and is not easy to be separated from the through hole.

In some embodiments of the present invention, the elastic portion has a plurality of notches, the elastic portion is separated into a plurality of flaps by the notches, the lower end of the elastic portion is circumferentially provided with an end, and the end is clamped on the lower surface of the circuit board.

In some embodiments of the present invention, the lower end of the end is tapered.

In some embodiments of the present invention, the elastic portion is provided in a plurality along the length direction of the support frame.

In some embodiments of the present invention, the supporting frame is made of non-conductive material.

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

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of an air conditioner outdoor unit according to an embodiment of the present invention;

fig. 2 is a perspective view of an air conditioner outdoor unit according to an embodiment of the present invention, with a top cover removed;

fig. 3 is a perspective view of a circuit board assembly of an outdoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 4 is an exploded view of FIG. 3;

fig. 5 is an exploded view of a radiator of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a heat radiating plate in a radiator of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a radiator of an outdoor unit of an air conditioner according to an embodiment of the present invention before and after pressing pipes;

fig. 8 is a sectional view of a radiator of an outdoor unit of an air conditioner according to another embodiment of the present invention, before and after pressing pipes;

fig. 9 is a perspective view of a heating module and a support frame of an outdoor unit of an air conditioner according to an embodiment of the present invention in an assembled state;

fig. 10 is a plan view of a circuit board assembly of an outdoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 11 is a sectional view A-A of FIG. 10;

fig. 12 is an exploded view of a circuit board assembly of an outdoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 13 is an enlarged view of B of FIG. 12;

in the above figures: an outdoor unit of an air conditioner 100; a housing 1; a fan cavity 01; a press chamber 02; a separator 03; an air inlet side 11; an air outlet grille 12; an outdoor heat exchanger 2; an outdoor fan 3; a compressor 4; a refrigerant pipeline 5; an electric control box 6; a circuit board 7; a through hole 71; a heat generating module 8; a heat sink 9; a heat dissipation plate 91; a groove 911; a first mounting hole 912; a refrigerant pipe 92; a support frame 10; a protrusion 101; a guide post 102; an elastic portion 103; a tip 1031; a second mounting hole 104; a screw 20; positioning the corner plate 30; a first gusset 301; a second corner panel 302.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings.

The air conditioner in the present disclosure performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant 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 liquid-phase refrigerant in a high-temperature and high-pressure state 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 cooling effect by heat-exchanging 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 and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit of the air conditioner.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

Fig. 1 is a perspective view illustrating an outdoor unit 100 of an air conditioner according to an embodiment of the present disclosure, and fig. 2 is a schematic view illustrating the outdoor unit 100 of the air conditioner according to the embodiment of the present disclosure with a top cover removed.

The outdoor unit 100 of the air conditioner includes a casing 1, a fan chamber 01 and a press chamber 02 are partitioned by a partition plate 03 in the casing 1, and an outdoor heat exchanger 2, an outdoor fan 3 and other components are arranged in the fan chamber 01; the press cavity 02 is internally provided with a compressor 4, a refrigerant pipeline 5, an electric control box 6 and other parts.

An air inlet side 11 and an air outlet grid 12 which are open are arranged on the shell 1 corresponding to the fan cavity 01, and the air inlet side 11 and the air outlet grid 12 are arranged oppositely; the outdoor heat exchanger 2 is arranged on the air inlet side 11, and the outdoor fan 3 is arranged between the outdoor heat exchanger 2 and the air outlet grille 12; under the action of the outdoor fan 3, the outdoor air is heat-exchanged by the outdoor heat exchanger 2 and then blown out from the outlet grille 12.

A compressor 4 is arranged in the press cavity 02 and is connected with the outdoor heat exchanger 2 through a refrigerant pipeline 5; the electric control box 6 is provided with a circuit board assembly, and the electric control function of the air conditioner is realized.

The circuit board assembly includes a module with large heat generation, such as an inverter module, which is collectively referred to as a heat generation module 8, and the heat generation module 8 is connected to a heat sink 9 for heat dissipation, because the high-frequency operation of the compressor 4 is restricted in a high-temperature environment.

Fig. 3 is a partial structure diagram of a circuit board assembly in an outdoor unit 100 of an air conditioner according to the present embodiment, fig. 4 is an exploded view of the circuit board assembly, a circuit board 7 is provided in an electric control box 6, a plurality of heating modules 8 are mounted on the circuit board 7, a side on which the heating modules 8 are mounted is referred to as "up", a side opposite to the side is referred to as "down", a heat sink 9 is connected above the heating modules 8, and the heat sink 9 is attached to the heating modules 8, thereby achieving a heat dissipation purpose.

Referring to fig. 5, the heat sink 9 includes a heat dissipation plate 91 and a refrigerant pipe 92, a groove 911 is formed in the upper surface of the heat dissipation plate 91, the refrigerant pipe 92 is fixed in the groove 911 through a pipe pressing process, the lower surface of the heat dissipation plate 91 is attached to the heating module 8 for connection, and the heating module 8 heats and transfers heat to the heat sink 9; the refrigerant pipe 92 is connected to the refrigerant pipe 5 in the outdoor unit 100 to form a loop, and when the refrigerant in the refrigerant pipe 5 flows through the refrigerant pipe 92, the refrigerant absorbs heat from the heat sink 9, so that the electronic control box 6 is cooled, and the refrigerant is in a continuous circulation state, and the refrigerant pipe 92 can continuously absorb heat from the heat sink 9. Therefore, the heating module 8 can keep a lower temperature for a long time, and a better heat dissipation effect is achieved.

Here, the radiator 9 only has a heating panel 91 and refrigerant pipe 92 in this open air condensing units 100, compare in adopting two clamp plates to fix refrigerant pipe 92 and have the high preparation of connection precision requirement troublesome in the correlation technique, refrigerant pipe 92 laminating inseparable reliability is poor, and need paint heat conduction silicone grease scheduling problem, this radiator 9 only adopts a heating panel 91 and is connected with refrigerant pipe 92, a clamp plate has been saved, too much connection structure need not designed, the structure is simpler, the cost is lower, also need not paint heat conduction silicone grease and fill the gap, pressing refrigerant pipe 92 on heating panel 91 has guaranteed that the connection face is closely laminated between refrigerant pipe 92 and the heating panel 91, the technology simple manufacture, the reliability is high.

The heat dissipation plate 91 may be an aluminum plate, a copper plate, or another rectangular plate with good thermal conductivity, and the refrigerant pipe 92 may be a copper pipe or another pipe with good thermal conductivity.

In some embodiments of the present disclosure, the coolant tube 92 is formed as a U-shaped tube. Therefore, the contact area between the refrigerant pipe 92 and the heat dissipation plate 91 is large, the heat dissipation effect of the heat sink 9 can be increased, and the U-shaped refrigerant pipe 92 is simple to manufacture and easy to assemble; to accommodate the U-shaped tube, the grooves 911 in the heat radiating plate 91 are provided in parallel.

The refrigerant pipe 92 can penetrate into the groove 911 from one end of the groove 911, as shown in fig. 7-8, before pressing the pipe, the upper end part of the refrigerant pipe 92 is higher than the upper surface of the heat dissipation plate 91, after pressing the pipe, the refrigerant pipe 92 deforms, the part of the refrigerant pipe 92 higher than the heat dissipation plate 91 is flattened in the groove 911, and the refrigerant pipe 92 and the heat dissipation plate 91 can be permanently and tightly attached through a pipe pressing process.

The cross-sectional shapes of the heat dissipation plate 91 and the refrigerant pipe 92 can be set reasonably according to the production and assembly requirements, and the shape of the groove 911 is suitable for the refrigerant pipe 92 to penetrate into, and can be an arc groove (shown in fig. 7) or a flat arc groove (shown in fig. 8).

The open end of the groove 911 is narrowed, so that the tube can be pressed, and the narrowed portion has a limiting effect on the refrigerant tube 92, so that the refrigerant tube 92 and the heat dissipation plate 91 are firmly and stably connected.

The notch edge fillet transition of recess 911 can avoid the notch to refrigerant pipe 92's sharp-pointed wearing and tearing when pressing the pipe.

Fig. 7(I), fig. 8(I) is a cross-sectional view of the radiator 9 before pressing the pipe, fig. 7(II), fig. 8(II) is a cross-sectional view of the radiator 9 after pressing the pipe, the refrigerant pipe 92 penetrates into the groove 911, before being pressed the pipe, the center of circle of the refrigerant pipe 92 is lower than the groove top of the groove 911, that is, the center of circle of the refrigerant pipe 92 is located in the groove 911, thus, most of the refrigerant pipe 92 is located in the groove 911, only protrudes from a small part of the groove 911, when pressing the pipe, the outer surface of the refrigerant pipe 92 deforms into the groove 911 along the inner wall of the groove 911, so that the phenomenon that the refrigerant pipe 92 begins to deform before pressing the pipe into the groove 911 due to too much protrusion outside the heat dissipation plate 91 can be effectively avoided, and the contact area between the refrigerant pipe 92 and the groove 911 and the.

Therefore, in the outdoor unit 100 of the air conditioner according to the embodiment of the present disclosure, the center of the circle of the refrigerant pipe 92 in the pre-pressing assembly state is located in the groove 911, so that the portion of the refrigerant pipe 92 protruding out of the heat dissipation plate 91 after pressing the pipe can be smoothly pressed into the groove 911, the refrigerant pipe 92 is tightly connected to the groove 911, and the upper surface of the refrigerant pipe 92 is flat.

In some embodiments of the present disclosure, before pressing the pipe, the cross section of the refrigerant pipe 92 is circular, the outer diameter of the refrigerant pipe 92 is d1, the cross section of the groove 911 is arc-shaped, the inner diameter of the groove 911 is d2, and Δ d is d2-d1, which satisfies that Δ d is greater than or equal to 0.1mm and less than or equal to 1 mm; before pressing the pipe, the height of the part, protruding out of the heat dissipation plate 91, of the refrigerant pipe 92 is h1, the requirement that 1mm is not less than h1 is not less than 3mm is met, under the condition, the refrigerant pipe 92 deforms less, the pressing of the pipe is easy, and the tightness and reliability of the refrigerant pipe 92 and the heat dissipation plate 91 after the pressing of the pipe can be guaranteed.

In some embodiments of the present disclosure, after the refrigerant pipe 92 is flattened, the upper surface of the heat dissipation plate 91 and the upper surface of the refrigerant pipe 92 are substantially located in the same plane.

Specifically, in the cross section of the radiator 9, the section perimeter of the refrigerant pipe 92 is C1, the section perimeter of the groove 911 is C2, and C1 and C2 satisfy: c2 is more than or equal to 0.8C1 and less than or equal to 1.2C1, so that the refrigerant pipe 92 is pressed into the groove 911 and then completely fills the groove 911, the refrigerant pipe and the groove are connected tightly and reliably, and the integral upper surface of the radiator 9 is flat.

Illustratively, as shown in fig. 6, the cross section of the refrigerant pipe 92 is circular, the circumference of the circular cross section is C1, the cross section of the groove 911 is arc-shaped, the length of the arc is b, the length of the connecting line of the arc-shaped top end is a, and the circumference of the cross section of the groove 911 is C2 ═ a + b.

For example, fig. 8(I) shows a cross-sectional view of the before-pressure radiator 9, a cross-section of the refrigerant pipe 92 is circular, a circular cross-sectional perimeter C1, and a cross-section of the groove 911 is a flattened circle, where an arc length C, a straight length f, and a cross-sectional perimeter C2 of the groove 911 are 2C +2 f.

Through setting up refrigerant pipe 92 and recess 911's cross section girth relation, can guarantee to press the pipe back under inseparable reliable prerequisite, refrigerant pipe 92 is roughly located recess 911, and the upper surface of refrigerant pipe 92 and the upper surface parallel and level of heating panel 91.

In some embodiments of the present disclosure, the thickness h2 of the groove bottom of the groove 911 satisfies: h2 is more than or equal to 0.8mm and less than or equal to 3mm, and h2 is within the range, so that the material consumption of the heat dissipation plate 91 is minimum, and the grooves 911 are not deformed.

According to the outdoor unit 100 of the air conditioner of the embodiment of the present disclosure, the circuit board 7 is provided with the pin holes adapted to the pins of the heating module 8, when the heating module 8 is installed on the circuit board 7, the pins of the heating module 8 and the pin holes on the circuit board 7 need to be installed in a one-to-one correspondence manner, and since the pin holes are small and many, the assembly and positioning are difficult, the efficiency is low, and the assembly is not suitable for batch assembly.

Therefore, the heat sink 9 further includes a support frame 10, and in the up-down position, the support frame 10 is connected between the circuit board 7 and the heat generating module 8, and in the transverse position, the support frame 10 is located between the two rows of pin holes. When the assembly is carried out, the support frame 10 is firstly placed between the pin holes of the circuit board 7, and then the two sides of the support frame 10, which is clamped by the two rows of pins of the heating module 8, are assembled on the circuit board 7, so that the assembly efficiency is greatly improved.

Referring to fig. 9, the upper surface of support frame 10 upwards extends and has a plurality of archs 101, and a plurality of archs 101 are along the length direction interval distribution of support frame 10, and module 8 that generates heat is located between two adjacent archs 101, and protruding 101 further forms the location to module 8 that generates heat's horizontal position, makes things convenient for module 8 that generates heat's location installation, and support frame 10 has the effect of initial positioning to module 8 that generates heat.

In addition, the support frame 10 has a supporting function on the heating module 8, and the support frame 10 is supported below the heating module 8, so that the pins of the heating module 8 can be conveniently welded.

Specifically, the support frame 10 is made of plastic or other non-conductive materials, and has certain strength and rigidity.

In the related art, the heat sink 9 is formed by two upper and lower pressing plate fixing refrigerant pipes 92, and since the upper pressing plate needs to be disassembled and assembled, a screw needs to be inserted upwards from the lower surface of the circuit board 7 for connecting the heat sink 9, and further, since the space from the lower surface of the circuit board 7 to the inner wall of the electronic control box 6 is small, a lot of inconvenience is brought to the screw disassembling operation during assembling and maintenance.

Therefore, in some embodiments of the present disclosure, referring to fig. 10 and 11, after the heat sink 9 is placed against the upper surface of the heat generating module 8, the heat sink 9 is fixed by using screws 20 to penetrate the heat sink 9 in the direction of the circuit board 7. When the radiator 9 needs to be disassembled or maintained, the screw 20 can be unscrewed from the upper part of the radiator 9, the operation space above the radiator 9 is large, and the disassembly operation is facilitated.

Regarding the connection of the heat sink 9, the screws 20 may be inserted into the heat sink 9 and connected to the supporting frame 10 to fix the two together; or the screw 20 is arranged through the heat sink 9 and the support frame 10 to be connected to the circuit board 7; or the screw 20 is inserted into the heat sink 9 and the heat generating module 8 is connected to the support frame 10. It is within the scope of the present invention to connect the heat sink 9 to any component below via screws 20.

In some embodiments of the present disclosure, the supporting frame 10 is substantially long, and can position a row of a plurality of heat generating modules 8 according to practical situations.

In the related art, connection holes are reserved in the heat generating module 8, and the fixing of the heat generating module 8 to the heat sink 9 is achieved by screwing screws 20 through the connection holes of the heat generating module 8. However, when the number of the heat generating modules 8 on the circuit board 7 is large, it is necessary to fix each module with the screws 20, which is time-consuming, labor-consuming and inefficient.

Therefore, in some embodiments of the present disclosure, the heat dissipation plate 91 is provided with a first mounting hole 912 for mounting the screw 20, the support frame 10 is provided with a second mounting hole 104, the second mounting hole 104 is provided at a position on the support frame 10 capable of avoiding the heat generating module 8, the screw 20 penetrates through the first mounting hole 912 and the second mounting hole 104 to fasten the heat sink 9 and the support frame 10, and meanwhile, the heat generating module 8 is clamped between the heat sink 9 and the support frame 10.

According to the outdoor unit 100 of the air conditioner of the embodiment of the present disclosure, referring to fig. 9 and 11, the second mounting holes 104 are formed at both ends of the supporting frame 10 and between the adjacent heat generating modules 8, so that the reliability of the clamping connection can be ensured.

The first mounting hole 912 is located between the two grooves 911 on the heat sink 91, and makes full use of the existing space on the heat sink 91 without increasing the volume of the heat sink 91.

By adopting the structure that the screws 20 are directly connected with the heating module 8 in the related art, on one hand, a connecting hole needs to be arranged on the heating module 8, on the other hand, one heating module 8 needs to be connected with at least two screws 20, and if there are n heating modules 8, the total number of the screws 20 is 2 n; however, in the present embodiment, the structure that the heat sink 9 and the supporting frame 10 are connected to clamp the heat generating module 8 is adopted, so that there is no need to provide a connecting hole on the heat generating module 8, and the firmness of the heat generating module 8 between the supporting frame 10 and the heat sink 9 can be ensured only by n +1 screws 20.

In the outdoor unit 100 of the air conditioner, the heat generating module 8 is clamped by the connection between the heat sink 9 and the support frame 10, no screw mounting holes are required to be formed in the heat generating module 8, the number of screws 20 arranged on the heat sink 9 and the support frame 10 is far less than that of screws 20 required by the heat generating module 8 in the related art, and the problem of low efficiency of connecting the heat generating module 8 by using the screws 20 is effectively solved.

The upper surface of the heating module 8 is slightly higher than the height of the upper protrusion 101 of the support frame 10, so that the heat dissipation plate 91 can be attached to the heating module 8.

Specifically, the second mounting hole 104 of the support frame 10 may be a nut embedded in the support frame 10.

In some embodiments of the present disclosure, a positioning structure is further disposed between the heat sink 9 and the supporting frame 10 to facilitate positioning and assembling between the heat sink 9 and the supporting frame 10.

As shown in fig. 9, the positioning structure is a guide hole (not shown) and a guide post 102, the guide post 102 is provided at both ends of the support frame 10 in the length direction, and correspondingly, the guide hole is provided on the heat dissipation plate 91, and when assembling, the guide hole is aligned with the guide post 102 for installation, so that the assembling efficiency and the assembling precision can be improved.

It is understood that the positions of the guide holes and the guide posts 102 may be interchanged, that is, the guide holes are provided on the support frame 10 and the guide posts 102 are provided on the heat dissipation plate 91.

In another embodiment of the present disclosure, the assembly sequence on the circuit board 7 is typically: the support frame 10, the heat generating module 8 and the heat sink 9 are assembled, therefore, when the heat sink 9 is assembled, the positions of the support frame 10 and the heat generating module 8 on the circuit board 7 are fixed, in the embodiment, as shown in fig. 10, the heat sink 9 is positioned by arranging the positioning angle plate 30 on the circuit board 7, and the requirement of arranging a matched positioning structure on two parts of the support frame 10 and the heat sink 9 is avoided.

Specifically, the positioning angle plate 30 extending upward is provided on the circuit board 7, and when the heat sink 9 is assembled, two side surfaces of the corner of the heat dissipation plate 91 are placed in contact with the positioning angle plate 30, so that the heat sink 9 is positioned.

The positioning corner plate 30 comprises a first corner plate 301 and a second corner plate 302, wherein the first corner plate 301 and the second corner plate 302 are connected at a right angle and are matched with the right-angle corner of the heat dissipation plate 91, and when the positioning corner plate is assembled, one side surface of the corner of the heat dissipation plate 91 abuts against the first corner plate 301, and the other side surface abuts against the second corner plate 302.

The positioning gusset 30 has four corresponding to four corners of the heat dissipation plate 91.

The upper end of the positioning gusset 30 is bent outward to facilitate the entry of the heat dissipation plate 91 into the positioning gusset 30 from the upper end of the positioning gusset 30.

In some embodiments of the present disclosure, the supporting frame 10 is connected to the heat sink 9 by screws 20, the heat generating module 8 is sandwiched between the supporting frame 10 and the heat sink 9, and pins of the heat generating module 8 are soldered on the circuit board 7, where if there is no fixed connection between the supporting frame 10 and the circuit board 7, the heat generating module 8 cannot be transferred to the circuit board 7 when the heat sink 9 is stressed, and the heat generating module 8 is stressed, so that the supporting frame 10 and the circuit board 7 of the outdoor unit 100 of the air conditioner can be fixedly connected.

Referring to fig. 12 and 13, a through hole 71 is formed in the circuit board 7, a downwardly extending elastic portion 103 is formed on the lower surface of the supporting frame 10, the elastic portion 103 is substantially cylindrical, a plurality of notches are formed in the elastic portion 103, the notches divide the elastic portion 103 into a plurality of pieces, and an end portion of the elastic portion 103 is configured to be suitable for the elastic portion 103 to pass through the through hole 71 and then not to easily fall out of the through hole 71.

Specifically, an outwardly protruding tip 1031 is disposed at a position close to a lower portion of a peripheral portion of the elastic portion 103, and in a process that a lower end of the elastic portion 103 passes through the through hole 71, the tip 1031 may be pressed by a sidewall of the through hole 71 to be drawn toward a center direction of the elastic portion 103, and after the elastic portion 103 passes through the through hole 71, the through hole 71 is reset under an elastic force of itself, so that the tip 1031 is clamped at the lower end of the through hole 71 and cannot be easily removed.

During assembly, the elastic part 103 on the support frame 10 is only required to be aligned to the through hole 71 on the circuit board 7, and the elastic part 103 can be clamped on the through hole 71 by pressing downwards, so that the assembly is very convenient, time-saving and labor-saving.

After the supporting frame 10 is clamped on the circuit board 7, the radiator 9 and the supporting frame 10 are fixed through the screws 20, so that reliable connection of the radiator 9, the supporting frame 10 and the circuit board 7 is guaranteed, and the heating module 8 cannot be stressed when the radiator 9 is stressed.

The lower end of the tip 1031 is tapered to facilitate guiding the elastic portion 103 into the through hole 71.

Along the length direction of the support frame 10, a plurality of elastic parts 103 are arranged on the support frame 10 at intervals, so that the reliability of connection between the support frame 10 and the circuit board 7 is ensured.

According to the first invention concept, since the heat sink 9 is formed by pressing the refrigerant pipe 92 into the groove 911 of the heat dissipation plate 90, it is not necessary to use a pressing plate for fixing, it is not necessary to design too many connection structures, the structure is simple, the cost is low, it is not necessary to paint heat-conducting silicone grease to fill the gap, the refrigerant pipe 92 is pressed on the heat dissipation plate 91, it is ensured that the connection surface between the refrigerant pipe 92 and the heat dissipation plate 91 is tightly attached, the process is simple to manufacture, and the reliability is high.

According to the second inventive concept, due to the fact that the circle center of the refrigerant pipe 92 arranged before the pressure pipe is located in the groove 911 and the size of the refrigerant pipe 92 and the groove 911, the portion, protruding out of the heat dissipation plate 91, of the refrigerant pipe 92 can be easily pressed into the groove 911, the refrigerant pipe 92 is tightly connected with the groove 911, and the upper surface of the whole radiator 9 is flat.

According to the third inventive concept, since the heat sink 9 is formed by pressing the refrigerant pipe 92 into the groove 911 of the heat dissipation plate 91, it is not necessary to fix the heat dissipation plate 91 by using a pressing plate, and thus a fastening member may be provided to fix the heat dissipation plate 91 from above the heat dissipation plate 91, thereby facilitating the detachment and installation of the heat sink 9.

According to the fourth inventive concept, since the heat dissipation plate 91 is connected to the support frame 10, the heat dissipation module 8 can be sandwiched between the heat dissipation plate 91 and the support frame 10, thereby avoiding the problem of time and labor waste when the heat generation module 8 is connected by using screws, and having the advantage of convenient assembly and disassembly.

According to the fifth inventive concept, due to the clamping connection of the support frame 10 and the circuit board 7, the heat generating module 8 is not stressed when the heat sink 9 is stressed and is transferred to the circuit board 7 through the support frame 10.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

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 implicitly indicating the 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 invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally 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 invention can be understood in specific cases to those skilled in the art.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An outdoor unit of an air conditioner, comprising:

the air conditioner comprises a machine shell, a fan and a fan control system, wherein two cavities, namely a compressor cavity and a fan cavity, are formed in the machine shell;

the outdoor fan is arranged in the fan cavity;

the compressor is arranged in the compressor cavity; and

the electric control box is arranged in the pressing machine cavity and is internally provided with a pressing machine cavity;

a circuit board;

the supporting frame is arranged on the upper surface of the circuit board;

the heating module is arranged on the upper surface of the support frame and provided with a pin, and the pin is welded with the circuit board;

the radiator is arranged on the upper surface of the heating module and comprises a heat dissipation plate and a refrigerant pipe, a groove is formed in the upper surface of the heat dissipation plate, and the refrigerant pipe is connected into the groove through a pipe pressing process; the heating panel is connected with the supporting frame through a fastener, and the heating module is clamped between the supporting frame and the radiator.

2. The outdoor unit of claim 1, wherein the fastening member is attached to the supporting frame at a position capable of avoiding the heat generating module.

3. The outdoor unit of claim 1, wherein the heat generating module has a plurality of protrusions extending upward from the supporting frame, the plurality of protrusions are spaced apart from each other along the length direction of the supporting frame, and the heat generating module is located between the adjacent protrusions to limit the position of the heat generating module on the supporting frame.

4. The outdoor unit of claim 3, wherein the upper surface of the heat generating module is slightly higher than the upper surface of the projection, and the heat dissipating plate is attached to the upper surface of the heat generating module.

5. The outdoor unit of claim 3, wherein the fastening member is coupled to the projection.

6. The outdoor unit of claim 1, wherein a nut is mounted on the supporter, and the fastening member is inserted through the heat radiating plate and coupled to the nut.

7. The outdoor unit of claim 1, wherein the heat radiating plate has two grooves, and the fastening member is positioned between the two grooves.

8. The outdoor unit of claim 1, wherein one of the heat radiating plate and the supporter is provided with a guide hole, and the other one of the heat radiating plate and the supporter is provided with a guide post, the guide post being engaged with the guide hole.

9. The outdoor unit of claim 1, wherein the circuit board is provided with positioning corner plates, and the positioning corner plates are positioned at corners of the heat radiating plate in an assembled state.

10. The outdoor unit of claim 1, wherein the supporter is made of a non-conductive material.