CN109587946B - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN109587946B CN109587946B CN201811320416.6A CN201811320416A CN109587946B CN 109587946 B CN109587946 B CN 109587946B CN 201811320416 A CN201811320416 A CN 201811320416A CN 109587946 B CN109587946 B CN 109587946B
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- Prior art keywords
- pcb
- radiator
- pcb board
- air conditioner
- screw
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
- H05K1/0206—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate by printed thermal vias
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides a PCB module of an air conditioner, an installation method and the air conditioner, wherein the PCB module comprises: the PCB board is provided with a PCB board body, a heating element arranged on the back surface of the PCB board body and other electronic elements arranged on the front surface of the PCB board body, and the PCB board body is provided with at least one first through hole; the refrigerant radiator and the electric system radiator are fixedly connected through a screw penetrating through the first through hole. Through having seted up first via hole on the PCB board body, realized can utilizing the screw to pass first via hole after-fixing electrical system radiator and refrigerant radiator on the PCB board body from the front for the PCB board is located the forefront of module, makes the electronic component on the PCB board be convenient for maintain, and especially the maintenance that is located the electronic component on PCB board front and change convenient operation are swift, increases the maintainability of PCB board and has improved the work efficiency of maintaining.
Description
The present application is a divisional application of chinese patent application 201610241928.8 entitled "PCB module for air conditioner, mounting method and air conditioner" filed 2016, 04, 19.
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner.
Background
The PCB board is used for controlling the work of the air conditioner in the air conditioner, the PCB board is provided with electronic components, high-power electronic components become heating elements (for example, driving elements for controlling a compressor), high temperature is generated in the working process, and a heat dissipation part is required to be arranged for dissipating heat of the heating elements so as to prevent the temperature of the elements from exceeding the operable temperature of the elements; at present, the application of the refrigerant radiator for radiating the heating element is more and more extensive, namely, the refrigerant of the air-conditioning refrigeration system flows through the refrigerant radiator and radiates the heating element through the refrigerant radiator, the temperature rise of the heating element is effectively controlled, the heating element is ensured to work in a reliable working temperature range, and the control reliability is improved.
The PCB module comprises a PCB, a coolant radiator and an electric system radiator positioned between the coolant radiator and the PCB. At present, when a PCB module is fixedly installed, the common use method comprises the following steps: the refrigerant radiator is connected into a refrigerant system through a section of long straight pipe, and the long straight pipe is arranged to enable the refrigerant radiator to have a certain deformable amount by lengthening the length of the straight pipe section; and then the PCB and the electric system radiator are attached to the electric system radiator through the refrigerant radiator movably connected with the refrigerant pipeline after being installed, and are fixedly connected through screws. At present, because the refrigerant radiator is fixed at the back, the power element and the electric system radiator are required to face outwards, and other electronic elements on the PCB are required to face inwards, so that the refrigerant radiator and the electric system radiator are convenient to fix, and the heat transfer and the temperature reduction of the refrigerant radiator to the electric system radiator are finally realized. However, such fixation has problems: 1. other electronic elements are hidden on the back of the electric system radiator, so that the maintainability of the PCB is poor; 2. the welding process of the long straight pipe pipeline of the refrigerant radiator is complex, and the production efficiency is low; 3. the long straight pipeline of the refrigerant radiator is connected with the electric system radiator through pipeline deformation after the long straight pipeline is connected, the long straight pipeline is not limited enough, and the hidden danger of free deformation exists.
Disclosure of Invention
Aiming at the problem that a PCB is difficult to maintain in the prior art, the invention provides the PCB module of the air conditioner, and the PCB is provided with the first through hole, so that the PCB is simple and convenient to maintain.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
an air conditioner comprises an indoor unit and an outdoor unit, and is characterized in that a PCB module is arranged in the outdoor unit, and the PCB module comprises a PCB, an electric system radiator and a refrigerant radiator which are sequentially arranged from front to back;
the PCB is provided with a PCB body, at least one first through hole is formed in the PCB body, and the electric system radiator is arranged behind the PCB;
the refrigerant radiator is arranged behind the electric system radiator;
the refrigerant radiator and the electric system radiator are fixedly connected through a screw penetrating through the first through hole;
the PCB module also comprises a pre-positioning device fixed in the air conditioner, and the refrigerant radiator is positioned on the pre-positioning device; the pre-positioning device comprises a vertical positioning plate, a bottom plate and a fixing part, wherein the bottom plate is formed by bending and extending forwards along the lower end of the vertical positioning plate, and the fixing part is formed by bending and extending backwards along the upper end of the positioning plate.
Further, the pre-positioning device also comprises a rib extending upwards along the front end of the bottom plate.
Further, the PCB module further comprises an electrical box fixed in the air conditioner, the PCB is fixed on the electrical box, and the electrical system radiator is fixed on the electrical box.
The invention provides an air conditioner, which comprises an indoor unit and an outdoor unit, wherein a PCB module is arranged in the outdoor unit, the PCB module comprises a PCB, an electric system radiator and a refrigerant radiator which are sequentially arranged from front to back, and the PCB body is provided with a first through hole, so that the electric system radiator and the refrigerant radiator can be fixed after a screw penetrates through the first through hole on the PCB body from the front side, the PCB is positioned at the forefront of the module, and the PCB, the electric system radiator and the refrigerant radiator are sequentially arranged from front to back, therefore, electronic elements on the PCB are convenient to maintain, particularly, the maintenance and replacement of the electronic elements on the front side of the PCB are convenient and quick, the maintainability of the PCB is improved, and the maintenance work efficiency is improved.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a PCB module of an air conditioner according to the present invention;
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;
FIG. 3 is an enlarged schematic view of region B in FIG. 2;
FIG. 4 is an enlarged schematic view of region C in FIG. 2;
FIG. 5 is a schematic structural diagram of the PCB board of FIG. 1;
FIG. 6 is a side view of the structure of FIG. 5;
FIG. 7 is a schematic diagram of the heat sink of the electrical system of FIG. 1;
FIG. 8 is a schematic structural diagram of the electrical box of FIG. 1;
FIG. 9 is a schematic diagram of the structure of the refrigerant radiator and the pre-positioning device;
FIG. 10 is a side view of the structure of FIG. 9;
FIG. 11 is an enlarged schematic view of the pre-positioning device of FIG. 10;
FIG. 12 is a schematic top view of the structure of FIG. 11;
fig. 13 is a flowchart illustrating a method for mounting a PCB module of an air conditioner according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it is to be noted that the terms are defined as follows: the direction of the air conditioner close to a user in the normal use process is taken as front, the direction opposite to the front is taken as back, the surface close to the front is taken as the front, and the surface far away from the front is taken as the back; and the terms "upper", "lower", "left", "right", etc., indicate orientations or positional relationships that are based on the positional relationships shown in the drawings, and are merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 12, an embodiment of an air conditioner according to the present invention includes an indoor unit and an outdoor unit, and a PCB module is disposed in the outdoor unit of the air conditioner and fixed in a casing of the outdoor unit. In this embodiment, the PCB module includes a PCB 1, an electrical system heat sink 2, and a coolant heat sink 3 sequentially arranged from front to back. Referring to fig. 6, the PCB 1 includes a PCB body 11, a heating element 12 disposed on a back surface of the PCB body 11, and other electronic elements arranged on a front surface of the PCB body 11, wherein the PCB body 11 is provided with at least one first via hole 111; referring to fig. 2, the electrical system heat sink 2 is disposed behind the PCB board 1, that is, the heat generating component 12 disposed on the back surface of the PCB board body 11 is adjacent to the electrical system heat sink 2, so that the heat of the heat generating component 12 is transferred to the electrical system heat sink 2; referring to fig. 3, in order to further accelerate heat dissipation, a refrigerant radiator 3 is arranged behind the electrical system radiator 2, and a refrigerant of the air conditioner refrigeration system passes through the refrigerant radiator 3, so that the refrigerant radiator 3 has strong refrigeration and cooling capabilities, and heat on the electrical system radiator 2 can be taken away quickly; referring to fig. 3 and 4, when the refrigerant radiator 3 is fixed, the first screw 41 penetrates through the first through hole 111, so that the first screw 41 can reach the front surface of the electrical system radiator 2, and then the first screw 41 is rotated to fix the electrical system radiator 2 and the refrigerant radiator 3.
In this embodiment, the first through hole 111 is formed in the PCB body 11, so that the electrical system radiator 2 and the refrigerant radiator 3 can be fixed after the first screw 41 penetrates through the first through hole 111 of the PCB body 11 from the front or from the front, so that the PCB is located at the forefront of the module; the PCB, the electric system radiator and the refrigerant radiator are sequentially arranged from front to back, so that electronic elements on the PCB are convenient to maintain, particularly the electronic elements on the front surface of the PCB are convenient and quick to maintain and replace, the maintainability of the PCB is improved, and the maintenance work efficiency is improved.
In this embodiment, referring to fig. 3 and 4, the diameter of the first through hole 111 is larger than the nut diameter of the first screw 41, that is, the first through hole 111 is used as a passage for fixing the first screw 41, and the first screw 41 is fixed on the electrical system heat sink 2 and the refrigerant heat sink 3. Three first through holes 111 arranged up and down are formed in the PCB body 11, so that the electrical system heat sink 2 and the refrigerant heat sink 3 are fixed by three first screws 41. Since the fixation between the components in the present embodiment is mainly by screws, for convenience of description and clarity of illustration in the drawings, screws fixed at different positions are distinguished and defined as a first screw, a second screw, a third screw, and the like. Referring to fig. 7 and 9, in order to facilitate the fixing operation of the first screw 41, a first screw front hole 21 is formed in the electrical system radiator 2, a first screw rear hole 31 is formed in the refrigerant radiator 3, and a stud of the first screw 41 is located in the first screw front hole 21 and the first screw rear hole 31.
In the present embodiment, referring to fig. 2 to 4, in order to accelerate the heat transfer between the heating element 12 and the electrical system radiator 2, it is necessary to increase the contact area between the heating element 12 and the electrical system radiator 2, and fix the heating element 12 and the electrical system radiator 2; referring to fig. 5, in order to facilitate the fixing operation between the heat generating component 12 and the electrical system heat sink 2, four second through holes 112 are opened on the PCB body 11. When the both are fixed, the second screw 42 is fixed to the heat generating element 12 and the electrical system heat sink 2 by the second screw 42 passing through the second through hole 112. By fixing the heating element 12 and the electric system radiator 2, the heating element 12 and the electric system radiator 2 are tightly attached to each other, so that heat emitted by the heating element 12 is transferred to the electric system radiator 2, the heat transfer efficiency between the heating element 12 and the electric system radiator 2 is improved, and heat dissipation is accelerated. The second through hole 112 is formed in the PCB body 11, so that the fixing operation between the heating element 12 and the electrical system heat sink 2 is simple, and the second screw 42 is fixed to the heating element 12 and the electrical system heat sink 2 after passing through the second through hole 112 from the front of the PCB module by a screwdriver. In order to facilitate the fixing operation of the second screw 42, a second screw front hole 121 is opened on the heating element 12, a second screw rear hole 22 is opened on the electrical system heat sink 2, and the stud of the second screw 42 is located in the second screw front hole 121 and the second screw rear hole 22.
In this embodiment, referring to fig. 1 to 4, the PCB module further includes an electrical box 6, the electrical box 6 is fixed in a casing of the outdoor unit, the PCB 1 is fixed on the electrical box 6 at four angles by a third screw 43, in order to facilitate the fixing operation of the third screw 43, a third screw front hole 113 is formed on the PCB body 11, a third screw rear hole 613 is formed on a rear plate 61 of the electrical box 6, and a stud of the third screw 43 is located in the third screw front hole 113 and the third screw rear hole 613. The electrical system heat sink 2 is fixed to the electrical box 6 by fourth screws 44; a fourth screw front hole 614 is formed in the rear plate 61 of the electrical box 6, a fourth screw rear hole 23 is formed in the electrical system heat sink 2, and a stud of the fourth screw 44 is positioned in the fourth screw front hole 614 and the fourth screw rear hole 23. Therefore, the PCB and the electric system radiator 2 are fixed on the electric box 6, and the refrigerant radiator 3 is fixed on the electric system radiator 2, so that the PCB module forms a whole and is fixed in the outdoor unit through the electric box 6, and the PCB module is fixed.
In this embodiment, referring to fig. 3, 4 and 8, the electrical system heat sink 2 is fixed to the back of the electrical box 6, and the PCB board 1 is fixed inside the electrical box 6. The electric box 6 comprises a back plate 61 and a frame 62 fixed on the edge of the back plate 61, wherein a through hole 611 for the overheating component 12 to extend out is arranged on the back plate 61, so that the overheating component 12 fixed on the PCB 1 in the electric box 6 is positioned in the through hole 611, and the overheating component 12 is contacted with the electric system radiator 2 fixed on the back of the electric box 6. A boss 612 extending rearward is provided on the back surface of the rear plate 61, and the electrical system heat sink 2 is located in an area surrounded by the boss 612, that is, the boss 612 functions to position and protect the electrical system heat sink 2.
In this embodiment, referring to fig. 2, 4 and 10, the PCB module further includes a pre-positioning device 5 fixed in the casing of the outdoor unit of the air conditioner, and before the refrigerant radiator 3 is fixed to the electric system radiator 2, the refrigerant radiator 3 is first placed on the pre-positioning device to perform an initial positioning function; the position of the refrigerant radiator 3 is relatively stable when the refrigerant radiator 3 and the electric system radiator 2 are fixed, and the refrigerant radiator 3 can be fixed with the electric system radiator 2 only by moving a small displacement, so that on one hand, the length of a connecting pipeline of the refrigerant radiator 3 in an air-conditioning system can be designed to be shorter, the moving length of the connecting pipeline when the refrigerant radiator 3 is installed is not reserved, the position of the connecting pipeline of the refrigerant radiator 3 is stable, the reliability is good, and the production efficiency is improved conveniently by welding; on the other hand, the small movement during installation also protects the connecting pipeline well.
Referring to fig. 10-12, the structure of the pre-positioning device 5 is specifically described, in this embodiment, the pre-positioning device 5 is a stamped and formed structure made of a steel plate, and the pre-positioning device 5 includes a vertical positioning plate 52, a bottom plate 53 formed by bending and extending forward along a lower end of the vertical positioning plate 52, and a fixing portion 51 formed by bending and extending backward along an upper end of the positioning plate 52. The pre-positioning device 5 is fixed on the casing of the outdoor unit of the air conditioner through the fixing part 51, the refrigerant radiator 3 is placed on the pre-positioning device 5 after being connected to the refrigerating system through the connecting pipeline, the bottom plate 53 plays a role in supporting the refrigerant radiator 3, and the positioning plate 52 plays a role in limiting the backward movement of the refrigerant radiator 3.
In order to increase the limiting effect of the pre-positioning device 5 on the forward movement of the refrigerant radiator 3, the front end of the bottom plate 53 is provided with a flange 54 extending upward, and since the refrigerant radiator 3 is mounted behind the electric system radiator 2, after the refrigerant radiator 3 and the electric system radiator 2 are fixed, the limiting effect of the flange 54 is not needed, and therefore, the height of the flange 54 is small. In order to realize the adjustability of the refrigerant radiator 3 when the refrigerant radiator 3 is fixed with the electric system radiator 2 after being pre-positioned, the width of the bottom plate 53 is larger than that of the refrigerant radiator 3, and the flange 54 is arranged, so that the refrigerant radiator 3 can only move within the width range of the bottom plate 53, namely, move between the positioning plate 52 and the flange 54, the movement of the refrigerant radiator 3 when the refrigerant radiator 3 is fixedly installed is small, and the stability and the reliability of a connecting pipeline of the refrigerant radiator 3 are improved.
The pre-positioning device 5 is provided with a notch 55, the bottom of the refrigerant radiator 3 is provided with two extended connectors 32 connected with an air-conditioning refrigeration system, the connectors 32 are positioned in the notch 55, and a connecting pipeline is hermetically connected with the connectors 32 and is not shown in the drawing.
Referring to fig. 13, the method for mounting the PCB module of the air conditioner in the embodiment will be described, which specifically includes the following steps:
A. the refrigerant radiator is connected into a refrigerating system of the air conditioner through a connecting pipeline, and then the refrigerant radiator is placed on the pre-positioning device 5.
B. The electrical system heat sink 2 is secured to the electrical box 6.
Specifically, the electrical system heat sink 2 is first placed behind the electrical box 6, in the area surrounded by the boss 612, and then fixed by operation from the front, and the electrical box 6 and the electrical system heat sink 2 are fixed by the fourth screws 44.
B1, passing the second screw 42 through the second via 112 on the PCB board 1, and fixing the heat generating component 12 on the PCB board 1 on the electrical system heat sink 2.
Specifically, the PCB board 1 is brought close to the electrical box 6, the heat generating element 12 on the back surface of the PCB board 1 is positioned in the through hole 611, the second screw 42 is passed through the second through hole 112, the second screw front hole 121 and the second screw rear hole 22 are aligned, and the second screw 42 is fastened, so that the heat generating element 12 is fixed to the electrical system heat sink 2.
C. The PCB board 1 is fixed to the electrical box 6.
Specifically, the PCB body 11 is attached to the front surface or front end surface of the rear plate 61, the third screw front hole 113 and the third screw rear hole 613 are formed, and the PCB 1 and the electrical box 6 are fixed by the third screw 43.
D. The first screw 41 penetrates through the first through hole 111 on the PCB board 1 to fix the electrical system heat sink 2 and the refrigerant heat sink 3.
Specifically, the first screw 41 passes through the first through hole 111, and the first screw 41 is fixed in the first screw front hole 21 and the first screw rear hole 31, so that the electric system radiator 2 and the refrigerant radiator 3 are fixed.
E. And finally, the electrical box 6 is fixed on the casing of the outdoor unit of the air conditioner.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (3)
1. An air conditioner comprises an indoor unit and an outdoor unit, and is characterized in that a PCB module is arranged in the outdoor unit, and the PCB module comprises a PCB, an electric system radiator and a refrigerant radiator which are sequentially arranged from front to back;
the PCB is provided with a PCB body, at least one first through hole is formed in the PCB body, and the electric system radiator is arranged behind the PCB;
the refrigerant radiator is arranged behind the electric system radiator;
the refrigerant radiator and the electric system radiator are fixedly connected through a screw penetrating through the first through hole;
the PCB module also comprises a pre-positioning device fixed in the air conditioner, and the refrigerant radiator is positioned on the pre-positioning device; the pre-positioning device comprises a vertical positioning plate, a bottom plate and a fixing part, wherein the bottom plate is formed by bending and extending forwards along the lower end of the vertical positioning plate, and the fixing part is formed by bending and extending backwards along the upper end of the positioning plate.
2. The air conditioner of claim 1, wherein the pre-positioning device further comprises a rib extending upwardly along the front end of the base plate.
3. The air conditioner of claim 1 or 2, wherein the PCB module further comprises an electrical box secured within the air conditioner, the PCB board being secured to the electrical box, the electrical system heat sink being secured to the electrical box.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811320416.6A CN109587946B (en) | 2016-04-19 | 2016-04-19 | Air conditioner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201610241928.8A CN105764255B (en) | 2016-04-19 | 2016-04-19 | A kind of pcb board module, installation method and the air conditioner of air conditioner |
CN201811320416.6A CN109587946B (en) | 2016-04-19 | 2016-04-19 | Air conditioner |
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CN201610241928.8A Division CN105764255B (en) | 2016-04-19 | 2016-04-19 | A kind of pcb board module, installation method and the air conditioner of air conditioner |
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CN109587946A CN109587946A (en) | 2019-04-05 |
CN109587946B true CN109587946B (en) | 2021-05-18 |
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CN201811320416.6A Active CN109587946B (en) | 2016-04-19 | 2016-04-19 | Air conditioner |
CN201610241928.8A Active CN105764255B (en) | 2016-04-19 | 2016-04-19 | A kind of pcb board module, installation method and the air conditioner of air conditioner |
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CN108151187B (en) * | 2017-12-26 | 2020-07-10 | 青岛海信日立空调系统有限公司 | Electrical apparatus box refrigerant heat radiation structure and air condensing units |
CN108954793A (en) * | 2018-08-27 | 2018-12-07 | 珠海格力电器股份有限公司 | Heat radiation structure, electric box and air conditioner |
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JP2973864B2 (en) * | 1995-04-11 | 1999-11-08 | ダイキン工業株式会社 | Switch box power device support structure |
CN201497123U (en) * | 2009-09-29 | 2010-06-02 | 珠海格力电器股份有限公司 | Air conditioner controller installing support and air conditioner mainboard subassembly |
US9182793B2 (en) * | 2011-10-14 | 2015-11-10 | Ergotron, Inc. | Tablet storage and transportation device |
AU2013254078B2 (en) * | 2012-04-27 | 2015-11-05 | Daikin Industries, Ltd. | Refrigerating apparatus |
CN104010438B (en) * | 2013-02-22 | 2017-10-13 | 广东美的制冷设备有限公司 | Pcb board component and the air-conditioner outdoor unit with it |
CN204084665U (en) * | 2014-08-01 | 2015-01-07 | 美的集团武汉制冷设备有限公司 | The off-premises station of air-conditioner and air-conditioner |
CN204962220U (en) * | 2015-09-25 | 2016-01-13 | 徐州工业职业技术学院 | Combined multi -function bracket |
CN205667021U (en) * | 2016-04-19 | 2016-10-26 | 海信(山东)空调有限公司 | PCB matrix piece and air conditioner of air conditioner |
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CN105764255B (en) | 2018-10-19 |
CN105764255A (en) | 2016-07-13 |
CN109587946A (en) | 2019-04-05 |
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