CN112781288A - Air conditioner defrosting device - Google Patents
Air conditioner defrosting device Download PDFInfo
- Publication number
- CN112781288A CN112781288A CN202110000361.6A CN202110000361A CN112781288A CN 112781288 A CN112781288 A CN 112781288A CN 202110000361 A CN202110000361 A CN 202110000361A CN 112781288 A CN112781288 A CN 112781288A
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- China
- Prior art keywords
- defrosting
- movable plate
- mounting
- wall
- air conditioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000010257 thawing Methods 0.000 title claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 9
- 238000007664 blowing Methods 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 244000309464 bull Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner defrosting device which comprises an installation frame, wherein guide rods are arranged on the upper side and the lower side in the installation frame, the guide rods are horizontally arranged, two ends of each guide rod are fixedly connected to the inner wall of the installation frame, a movable plate is arranged between the two guide rods, guide grooves matched with the guide rods are formed in the movable plate, the two guide rods are respectively inserted into the two guide grooves, a connecting groove is formed in the movable plate, a mounting plate is connected in the connecting groove, fixing mechanisms used for fixing the mounting plate are arranged on the upper side and the lower side of the movable plate, a defrosting mechanism is arranged on the mounting plate, a hot air fan connected with the defrosting mechanism is arranged on the inner wall of the installation frame, and a driving mechanism connected with the upper end of the movable plate is arranged on the inner top wall of the. The defrosting device is arranged in the air conditioner external unit, melts frost by blowing hot air, is matched with the defrosting brush to rotate for defrosting, has high defrosting efficiency, and can realize effective defrosting.
Description
Technical Field
The invention relates to the technical field of air conditioner defrosting, in particular to an air conditioner defrosting device.
Background
The existing common vertical air conditioner is one of split air conditioners, is generally used in families and small offices, has the advantages of high power, strong wind power and the like, has higher price starting point, and is generally suitable for rooms with larger areas.
In winter, because the outside temperature is very low, the environment temperature that the heat exchanger in the outer machine outside the air conditioner is in is very low, lead to the heat exchanger surface to frost and freeze easily to influence the heating effect of indoor set, present in order to solve this problem, make the heating cycle in the air conditioner become refrigeration cycle, thereby make the heat exchanger generate heat and consequently the deicing, nevertheless stop heating and influence indoor normal use, and just rely on outer machine heat exchanger to generate heat the defrosting, it is long-lived, inefficiency, the defrosting effect is not good enough.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an air conditioner defrosting device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an air conditioner defroster, includes the installing frame, both sides all are equipped with the guide bar about the inside of installing frame, the equal fixed connection in both ends of guide bar level setting and guide bar is on the inner wall of installing frame, two be equipped with the movable plate between the guide bar, set up the guide way with the guide bar adaptation on the movable plate, two the guide bar is inserted respectively and is established in two guide ways, the spread groove has been seted up on the movable plate, the mounting panel is connected in the spread groove, both sides all are equipped with the fixed establishment who is used for fixed mounting panel about the movable plate, be equipped with defrosting mechanism on the mounting panel, install the air heater of being connected with defrosting mechanism on the inner wall of installing frame, install the actuating mechanism of being connected with the movable plate upper end on the interior roof of installing.
Preferably, the fixed establishment is including offering the mounting hole on the mounting panel, install the fixture block in the mounting hole, set up the draw-in groove with the fixture block adaptation on the inner wall of spread groove, the one end of fixture block is connected with the spring, the one end that the fixture block was kept away from to the spring is connected on the inner wall of mounting hole, the one end that the spring was kept away from to the fixture block runs through out the mounting hole and extends to in the draw-in groove.
Preferably, defrosting mechanism is including setting up the mounting groove in the mounting panel is inside, be equipped with the pivot in the mounting groove, the both ends of pivot are all rotated and are connected on the inner wall of mounting groove, the both sides of pivot are all fixed the cup joint and are had the gear, fixedly connected with rack on the guide bar, the rack extend the guide way and with gear engagement, run through on the diapire in the mounting groove and be equipped with a plurality of changers, the upper and lower both ends of changer extend to the upper and lower both sides of mounting panel respectively, the upper end of changer is connected with the breather pipe through rotary joint, the breather pipe is connected with the output of air heater, the lower extreme fixedly connected with defrosting brush of changer, fixed cup joint has the worm wheel on the changer, fixed cup joint has worm.
Preferably, actuating mechanism is including installing the motor on the installing frame inner wall, the terminal fixedly connected with reciprocal lead screw of motor output shaft, the one end that the motor was kept away from to reciprocal lead screw rotates and connects on the inner wall of installing frame, the cover is equipped with the lead screw cover on the reciprocal lead screw, lead screw cover fixed connection is in the movable plate upper end.
Preferably, a strip-shaped groove is formed in the inner top wall of the mounting hole, a shifting block is fixedly connected to the upper end of the clamping block, and the shifting block is connected to the strip-shaped groove in a sliding mode.
Preferably, the shifting block and the clamping block are integrally formed, and anti-skid grains are arranged at one end, far away from the clamping block, of the shifting block.
Preferably, the motor is a servo motor.
Preferably, the defrost brush is trumpet shaped.
The invention has the beneficial effects that:
1. through setting up defrosting mechanism, start the air heater, can pump into steam to the change pipe, and blow hot gas to the heat exchanger surface of the outer machine of air conditioner, make the frost on heat exchanger surface be heated and melt, and when the movable plate removed along the guide bar, because gear and rack meshing, can drive gear and rotate, drive the pivot and rotate, because worm and worm wheel meshing, can drive the change pipe and rotate, drive the defrosting brush and rotate, further rotate the defrosting to the heat exchanger surface, and then effectively get rid of the frost on heat exchanger surface.
2. Through setting up actuating mechanism, starter motor drives reciprocal lead screw and rotates, can make the lead screw cover carry out reciprocating motion along reciprocal lead screw, and then drives the movable plate along guide bar reciprocating motion, can carry out reciprocal circulation defrosting to the heat exchanger surface, and defrosting is efficient, the effect is high.
3. Through setting up fixed establishment, when needing to dismantle the mounting panel, only need to stir the shifting block and make the fixture block shift out the draw-in groove, can dismantle the mounting panel down, and then the convenience is changed the defrosting brush, the simple operation.
The defrosting device is arranged in the air conditioner external unit, melts frost by blowing hot air, is matched with the defrosting brush to rotate for defrosting, has high defrosting efficiency, and can realize effective defrosting.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioner defrosting apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of a movable plate, a mounting plate and a defrosting mechanism of the defrosting device of the air conditioner according to the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is an enlarged view of fig. 2 at B.
In the figure: the device comprises an installation frame 1, an air heater 2, a guide rod 3, a rack 4, a motor 5, a screw sleeve 6, a reciprocating screw 7, a movable plate 8, a mounting plate 9, a vent pipe 10, a rotary joint 11, a rotating pipe 12, a worm wheel 13, a worm 14, a rotating shaft 15, a mounting groove 16, a defrosting brush 17, a mounting hole 18, a spring 19, a clamping block 20, a clamping groove 21, a shifting block 22, a strip-shaped groove 23, a connecting groove 24, a gear 25 and a guide groove 26.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, an air conditioner defrosting device comprises an installation frame 1, guide rods 3 are arranged on the upper side and the lower side of the inside of the installation frame 1, the guide rods 3 are horizontally arranged, two ends of each guide rod 3 are fixedly connected to the inner wall of the installation frame 1, a movable plate 8 is arranged between the two guide rods 3, guide grooves 26 matched with the guide rods 3 are formed in the movable plate 8, the two guide rods 3 are respectively inserted into the two guide grooves 26, connecting grooves 24 are formed in the movable plate 8, mounting plates 9 are connected in the connecting grooves 24, fixing mechanisms used for fixing the mounting plates 9 are arranged on the upper side and the lower side of the movable plate 8, defrosting mechanisms are arranged on the mounting plates 9, air heaters 2 connected with the defrosting mechanisms are installed on the inner wall of the installation frame 1, and driving mechanisms connected with the upper ends of the movable plates 8.
In the invention, the fixing mechanism comprises a mounting hole 18 formed on the mounting plate 9, a fixture block 20 is mounted in the mounting hole 18, a clamping groove 21 matched with the fixture block 20 is formed on the inner wall of a connecting groove 24, one end of the fixture block 20 is connected with a spring 19, one end of the spring 19 far away from the fixture block 20 is connected on the inner wall of the mounting hole 18, one end of the fixture block 20 far away from the spring 19 penetrates through the mounting hole 18 and extends into the clamping groove 21, a strip-shaped groove 23 is formed on the inner top wall of the mounting hole 18, a shifting block 22 is fixedly connected to the upper end of the fixture block 20, the shifting block 22 is slidably connected in the strip-shaped groove 23, the shifting block 22 and the fixture block 20 are integrally formed, and one end of the shifting block 22 far away from the fixture block 20 is provided with anti-skid grains, so that the anti-skid is effectively realized, the shifting block 22 is easier, when the mounting plate 9 needs to be dismounted, the operation is convenient.
Specifically, the defrosting mechanism comprises a mounting groove 16 arranged inside a mounting plate 9, a rotating shaft 15 is arranged in the mounting groove 16, two ends of the rotating shaft 15 are rotatably connected to the inner wall of the mounting groove 16, gears 25 are fixedly sleeved on two sides of the rotating shaft 15, a rack 4 is fixedly connected to a guide rod 3, the rack 4 extends out of a guide groove 26 and is meshed with the gears 25, a plurality of rotating pipes 12 are arranged on the inner bottom wall of the mounting groove 16 in a penetrating manner, the upper end and the lower end of each rotating pipe 12 respectively extend to the upper side and the lower side of the mounting plate 9, the upper end of each rotating pipe 12 is connected with a vent pipe 10 through a rotary joint 11, the vent pipe 10 is connected with the output end of the air heater 2, the lower end of each rotating pipe 12 is fixedly connected with a defrosting brush 17, the defrosting brush 17 is in a horn shape, a worm wheel 13 is fixedly sleeved on each rotating pipe 12, a worm, can go into steam to 12 internal pumps of bull stick, and blow hot gas to the heat exchanger surface of the outer machine of air conditioner, make the frost on heat exchanger surface be heated and melt, and when the movable plate 8 removed along guide bar 3, because gear 25 and rack 4 mesh, can drive gear 25 and rotate, drive pivot 15 and rotate, because worm 14 and worm wheel 13 mesh, can drive bull stick 12 and rotate, drive defrosting brush 17 and rotate, further rotate the defrosting to the heat exchanger surface, and then effectively get rid of the frost on heat exchanger surface.
Concretely, actuating mechanism is including installing motor 5 on the 1 inner wall of installing frame, motor 5 is servo motor, the terminal fixedly connected with reciprocating screw 7 of motor 5 output shaft, reciprocating screw 7 is kept away from the one end rotation of motor 5 and is connected on the inner wall of installing frame 1, the cover is equipped with screw housing 6 on the reciprocating screw 7, 6 fixed connection of screw housing is in 8 upper ends of movable plate, starter motor 5, drive reciprocating screw 7 and rotate, can make screw housing 6 carry out reciprocating motion along reciprocating screw 7, and then drive movable plate 8 along 3 reciprocating motion of guide bar, can carry out the reciprocal circulation defrosting to the heat exchanger surface, defrosting is efficient, and the effect is high.
When the invention is used, the mounting frame 1 is mounted in an air conditioner external unit, the hot air blower 2 is started, hot air can be pumped into the rotary pipe 12, the hot air is blown to the surface of a heat exchanger of the air conditioner external unit, frost on the surface of the heat exchanger is heated and melted, the motor 5 is started, the reciprocating screw 7 is driven to rotate, the screw sleeve 6 can be driven to reciprocate along the reciprocating screw 7, the movable plate 8 is driven to reciprocate along the guide rod 3, when the movable plate 8 moves along the guide rod 3, the gear 25 is meshed with the rack 4 to drive the gear 25 to rotate and drive the rotary shaft 15 to rotate, the rotary pipe 12 can be driven to rotate due to the meshing of the worm 14 and the worm wheel 13, the defrosting brush 17 is driven to rotate, the surface of the heat exchanger is further rotated and defrosted, the frost on the surface of the heat exchanger is effectively removed, when the defrosting brush 17 needs to be replaced after long-term, only need to stir shifting block 22 and make fixture block 20 shift out draw-in groove 21, can dismantle mounting panel 9, and then conveniently change the defrosting brush 17, the simple operation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The utility model provides an air conditioner defroster, includes installing frame (1), its characterized in that, both sides all are equipped with guide bar (3) about the inside of installing frame (1), guide bar (3) level setting and the both ends of guide bar (3) are all fixed connection on the inner wall of installing frame (1), two be equipped with movable plate (8) between guide bar (3), set up guide way (26) with guide bar (3) adaptation on movable plate (8), two guide bar (3) are inserted respectively and are established in two guide way (26), set up spread groove (24) on movable plate (8), mounting panel (9) are connected in spread groove (24), both sides all are equipped with the fixed establishment who is used for fixed mounting panel (9) movable plate about movable plate (8), be equipped with defrosting mechanism on mounting panel (9), install air heater (2) connected with defrosting mechanism on the inner wall of installing frame (1), install the actuating mechanism who is connected with movable plate (8) upper end on the interior roof of installing frame (1), fixed establishment is including offering mounting hole (18) on mounting panel (9), install fixture block (20) in mounting hole (18), offer draw-in groove (21) with fixture block (20) adaptation on the inner wall of spread groove (24), the one end of fixture block (20) is connected with spring (19), the one end that fixture block (20) were kept away from in spring (19) is connected on the inner wall of mounting hole (18), the one end that spring (19) were kept away from in fixture block (20) runs through mounting hole (18) and extends to in draw-in groove (21).
2. The air conditioner defrosting device according to claim 1, wherein the defrosting mechanism comprises a mounting groove (16) arranged inside the mounting plate (9), a rotating shaft (15) is arranged in the mounting groove (16), both ends of the rotating shaft (15) are rotatably connected to the inner wall of the mounting groove (16), gears (25) are fixedly sleeved on both sides of the rotating shaft (15), a rack (4) is fixedly connected to the guide rod (3), the rack (4) extends out of the guide groove (26) and is meshed with the gears (25), a plurality of rotating pipes (12) penetrate through the inner bottom wall of the mounting groove (16), the upper end and the lower end of each rotating pipe (12) respectively extend to the upper side and the lower side of the mounting plate (9), the upper end of each rotating pipe (12) is connected with a ventilation pipe (10) through a rotating joint (11), and the ventilation pipe (10) is connected with the output end of the air heater (2), the lower extreme fixedly connected with defrosting brush (17) of rotating-tube (12), the fixed cover is connected with worm wheel (13) on rotating-tube (12), fixed cover is connected with worm (14) that worm wheel (13) meshed on pivot (15).
3. The air conditioner defrosting device according to claim 1, wherein the driving mechanism comprises a motor (5) mounted on the inner wall of the mounting frame (1), a reciprocating lead screw (7) is fixedly connected to the tail end of an output shaft of the motor (5), one end, far away from the motor (5), of the reciprocating lead screw (7) is rotatably connected to the inner wall of the mounting frame (1), a lead screw sleeve (6) is sleeved on the reciprocating lead screw (7), and the lead screw sleeve (6) is fixedly connected to the upper end of the movable plate (8).
4. The defrosting device of an air conditioner according to claim 1, wherein a strip-shaped groove (23) is formed in the inner top wall of the mounting hole (18), a shifting block (22) is fixedly connected to the upper end of the clamping block (20), and the shifting block (22) is slidably connected into the strip-shaped groove (23).
5. The defrosting device for the air conditioner according to claim 4, wherein the shifting block (22) is integrally formed with the clamping block (20), and an anti-skid thread is arranged at one end of the shifting block (22) far away from the clamping block (20).
6. Defrost device for an air conditioner according to claim 3, characterized in that the motor (5) is a servo motor.
7. Defrost device for an air conditioner according to claim 2, characterized in that the defrost brush (17) is trumpet shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110000361.6A CN112781288A (en) | 2021-01-03 | 2021-01-03 | Air conditioner defrosting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110000361.6A CN112781288A (en) | 2021-01-03 | 2021-01-03 | Air conditioner defrosting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112781288A true CN112781288A (en) | 2021-05-11 |
Family
ID=75753676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110000361.6A Pending CN112781288A (en) | 2021-01-03 | 2021-01-03 | Air conditioner defrosting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112781288A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294851A (en) * | 2022-01-17 | 2022-04-08 | 山东绿泉空调科技有限公司 | Two-stage direct-current frequency conversion overlapping extremely cold unit system |
| CN115164286A (en) * | 2022-06-13 | 2022-10-11 | 泰豪科技股份有限公司 | Outer quick-witted heat dissipation copper pipe defrosting subassembly of air conditioner |
| CN115371339A (en) * | 2022-07-15 | 2022-11-22 | 陈磊 | Refrigeration equipment with refrigeration and cold accumulation functions |
| CN116447744A (en) * | 2023-06-19 | 2023-07-18 | 河南展宇实业有限公司 | Antifreezing surface cooler |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0659769U (en) * | 1993-01-20 | 1994-08-19 | 株式会社東洋製作所 | Cooler defroster |
| KR100760661B1 (en) * | 2006-04-05 | 2007-09-20 | 주식회사 이엠이 | Defrost device of a refrigerated warehouse coil type freezer |
| CN106403067A (en) * | 2016-11-10 | 2017-02-15 | 珠海格力电器股份有限公司 | Air condensing units and have its air conditioning system |
| CN106705502A (en) * | 2017-02-13 | 2017-05-24 | 硕楠 | Evaporator dedusting and defrosting system of air source heat pump |
| CN208600416U (en) * | 2018-06-30 | 2019-03-15 | 清远市敬威能源开发有限公司 | It is a kind of for cleaning the automatic cleaning machine structure of outdoor photovoltaic power generation apparatus |
| CN212006326U (en) * | 2020-03-18 | 2020-11-24 | 河北益洁节能设备有限公司 | Defrosting device for central air conditioner external unit |
| CN212133019U (en) * | 2020-02-24 | 2020-12-11 | 东星制冷工程(广东)有限公司 | Refrigerating system defrosting equipment for refrigeration house |
-
2021
- 2021-01-03 CN CN202110000361.6A patent/CN112781288A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0659769U (en) * | 1993-01-20 | 1994-08-19 | 株式会社東洋製作所 | Cooler defroster |
| KR100760661B1 (en) * | 2006-04-05 | 2007-09-20 | 주식회사 이엠이 | Defrost device of a refrigerated warehouse coil type freezer |
| CN106403067A (en) * | 2016-11-10 | 2017-02-15 | 珠海格力电器股份有限公司 | Air condensing units and have its air conditioning system |
| CN106705502A (en) * | 2017-02-13 | 2017-05-24 | 硕楠 | Evaporator dedusting and defrosting system of air source heat pump |
| CN208600416U (en) * | 2018-06-30 | 2019-03-15 | 清远市敬威能源开发有限公司 | It is a kind of for cleaning the automatic cleaning machine structure of outdoor photovoltaic power generation apparatus |
| CN212133019U (en) * | 2020-02-24 | 2020-12-11 | 东星制冷工程(广东)有限公司 | Refrigerating system defrosting equipment for refrigeration house |
| CN212006326U (en) * | 2020-03-18 | 2020-11-24 | 河北益洁节能设备有限公司 | Defrosting device for central air conditioner external unit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294851A (en) * | 2022-01-17 | 2022-04-08 | 山东绿泉空调科技有限公司 | Two-stage direct-current frequency conversion overlapping extremely cold unit system |
| CN114294851B (en) * | 2022-01-17 | 2024-03-26 | 山东绿泉空调科技有限公司 | Double-stage direct-current variable-frequency overlapping extremely-cold machine set system |
| CN115164286A (en) * | 2022-06-13 | 2022-10-11 | 泰豪科技股份有限公司 | Outer quick-witted heat dissipation copper pipe defrosting subassembly of air conditioner |
| CN115164286B (en) * | 2022-06-13 | 2023-09-29 | 泰豪科技股份有限公司 | Heat dissipation copper pipe defrosting assembly of air conditioner external unit |
| CN115371339A (en) * | 2022-07-15 | 2022-11-22 | 陈磊 | Refrigeration equipment with refrigeration and cold accumulation functions |
| CN116447744A (en) * | 2023-06-19 | 2023-07-18 | 河南展宇实业有限公司 | Antifreezing surface cooler |
| CN116447744B (en) * | 2023-06-19 | 2023-09-08 | 河南展宇实业有限公司 | Antifreezing surface cooler |
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Application publication date: 20210511 |