CN108426393B - Refrigerant heating device and air conditioner with same - Google Patents
Refrigerant heating device and air conditioner with same Download PDFInfo
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- CN108426393B CN108426393B CN201810325900.1A CN201810325900A CN108426393B CN 108426393 B CN108426393 B CN 108426393B CN 201810325900 A CN201810325900 A CN 201810325900A CN 108426393 B CN108426393 B CN 108426393B
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- 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
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Abstract
The invention provides a refrigerant heating device and an air conditioner with the same, wherein the refrigerant heating device comprises: the circulating device is provided with a refrigerant flow passage, an inlet and an outlet which are communicated with the refrigerant flow passage, and the refrigerant flow passage is used for circulating the refrigerant; the thick film heater is connected with the flow-through device and comprises a thick film circuit, and the thick film heater is used for heating the refrigerant in the refrigerant flow channel. By the technical scheme provided by the invention, the problems of complex structure and low heating efficiency of the refrigerant heating device in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a refrigerant heating device and an air conditioner with the same.
Background
The air conditioner operates under a low-temperature working condition, and frosting occurs to the outdoor opportunity, so that the heating capacity of the air conditioner is reduced, and the outdoor unit of the air conditioner is required to be defrosted. The existing defrosting modes comprise refrigeration cycle defrosting and hot gas defrosting, wherein the refrigeration cycle defrosting is to enable a system to be changed from heating cycle to refrigeration cycle through a four-way reversing valve, and an outdoor unit heat exchanger is used as a condenser to defrost by utilizing a high-temperature refrigerant; the hot gas defrosting is to increase the opening of the expansion valve and reduce the throttling effect of the expansion valve, so that the high-temperature refrigerant enters the heat exchanger of the outdoor unit to defrost. Both defrosting modes can not supply heat to the room in the defrosting process, so that the temperature of the room is reduced, the comfort of the room is affected, and meanwhile, when the refrigerating cycle is used for defrosting, the indoor heat exchanger is used as an evaporator and can absorb heat in the room, so that the comfort of the indoor room is reduced.
In order to solve the defrosting problem, a scheme of arranging a refrigerant heating device in the air conditioner is also provided, the purpose of defrosting is achieved by heating the refrigerant, and meanwhile, continuous heat supply to the indoor is ensured. The refrigerant heating devices in the prior art all adopt fin-tube heat exchangers or copper tubes matched with fin-type heat exchangers, wherein fins of the fin-tube heat exchangers are easy to rewind in the assembly process, the heat exchange area with refrigerant tubing is affected, the heat exchange capacity is poor, the assembly is complex, the structural volume is large, and the installation in a limited space is not facilitated; the fins of the copper pipe matched with the fin type heat exchanger have larger contact thermal resistance with the copper pipe, and the heat exchange effect is affected, so that the refrigerant heating efficiency is low. Therefore, the conventional refrigerant heating device has the problems of complex structure and low heating efficiency.
Disclosure of Invention
The invention provides a refrigerant heating device and an air conditioner with the same, which are used for solving the problems of complex structure and low heating efficiency of the refrigerant heating device in the prior art.
In order to solve the above problems, according to one aspect of the present invention, there is provided a refrigerant heating apparatus comprising: the circulating device is provided with a refrigerant flow passage, an inlet and an outlet which are communicated with the refrigerant flow passage, and the refrigerant flow passage is used for circulating the refrigerant; the thick film heater is connected with the flow-through device and comprises a thick film circuit, and the thick film heater is used for heating the refrigerant in the refrigerant flow channel.
Further, the refrigerant flow passage is of a curved structure, and the inlet and the outlet are respectively positioned at two ends of the curved structure.
Further, the thick film heater has a plate-like structure, and is bonded to the flow-through device.
Further, the flow-through device comprises a first shell and a second shell which are connected in a sealing way, and the refrigerant flow passage is positioned between the first shell and the second shell.
Further, the first housing has a receiving groove, and an edge of the first housing is connected with the second housing to seal the receiving groove, and the receiving groove forms a refrigerant flow passage.
Further, the first shell and the second shell are connected through a welding process, a welding groove is formed in the first shell, the welding groove is located at the bottom of the containing groove and protrudes towards the second shell, and the welding groove is welded with the second shell.
Further, the holding groove is of a U-shaped structure, the inlet and the outlet are respectively positioned at two ends of the U-shaped structure, the number of the welding grooves is multiple, and the welding grooves are arranged at intervals along the extending direction of the U-shaped structure.
Further, the first shell is of a curve-shaped structure, the second shell is of a plate-shaped structure, and the edge of the first shell is connected with the second shell.
Further, the first shell is of a curve-shaped structure, the second shell is of a curve-shaped structure matched with the first shell, and the edge of the first shell is connected with the edge of the second shell.
Further, the refrigerant heating device further includes: the liquid inlet pipe is communicated with the inlet; the liquid outlet pipe is communicated with the outlet.
Further, the cross-sectional area of the refrigerant flow passage perpendicular to the extending direction is 24mm 2 To 50mm 2 Between them.
Further, the refrigerant heating device further includes: the protection casing, circulation ware and thick film heater set up in the protection casing.
According to another aspect of the present invention, there is provided an air conditioner, including a refrigerant heating device, wherein the refrigerant heating device is the refrigerant heating device provided above.
Further, the air conditioner further comprises a compressor and a condenser, wherein an inlet of the refrigerant heating device is communicated with the compressor, and an outlet of the refrigerant heating device is communicated with the condenser.
By applying the technical scheme of the invention, the circulating device and the thick film heater are arranged in the refrigerant heating device, so that the refrigerant can flow in the refrigerant flow channel of the circulating device, and the thick film heater is connected with the circulating device and can heat the circulating device through the thick film heater, thereby heating the refrigerant in the refrigerant flow channel. The technical scheme of the invention can realize the rapid heating of the refrigerant through a simple structure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic structural diagram of a refrigerant heating device according to a first embodiment of the present invention;
FIG. 2 shows an exploded view of the refrigerant heating apparatus of FIG. 1;
FIG. 3 shows a cross-sectional view of the refrigerant heating apparatus of FIG. 1;
fig. 4 is a schematic structural diagram of a refrigerant heating device according to a second embodiment of the present invention;
fig. 5 shows a schematic structural diagram of an air conditioner according to a third embodiment of the present invention.
Wherein the above figures include the following reference numerals:
10. a flow-through device; 11. a first housing; 111. a receiving groove; 112. a weld groove; 12. a second housing; 20. a thick film heater; 31. a liquid inlet pipe; 32. a liquid outlet pipe; 40. a protective cover; 50. a compressor; 60. and a condenser.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, a first embodiment of the present invention provides a refrigerant heating device, including: a circulator 10, wherein the circulator 10 is provided with a refrigerant flow passage, an inlet and an outlet communicated with the refrigerant flow passage, and the refrigerant flow passage is used for circulating a refrigerant; and a thick film heater 20 connected to the flow-through device 10, wherein the thick film heater 20 comprises a thick film circuit, and the thick film heater 20 is used for heating the refrigerant in the refrigerant flow channel.
By applying the technical scheme of the embodiment, the flow-through device 10 and the thick film heater 20 are arranged in the refrigerant heating device, so that the refrigerant can flow in the refrigerant flow channel of the flow-through device 10, and the thick film heater 20 is connected with the flow-through device 10, so that the flow-through device 10 can be heated by the thick film heater 20, and the refrigerant in the refrigerant flow channel can be heated. The technical scheme of the embodiment can realize the rapid heating of the refrigerant through a simple structure.
In this embodiment, the refrigerant flow channel may be configured as a curved structure, and the inlet and the outlet are respectively located at two ends of the curved structure. The refrigerant flow channel is arranged in a curve shape, so that the length of a condensing flow path can be increased, the heating time of the refrigerant is prolonged, and the heating effect of the refrigerant is improved.
In the present embodiment, the thick film heater 20 may be provided in a plate-like structure, and the thick film heater 20 is adhered to the flow-through device 10, so that the contact area between the thick film heater 20 and the flow-through device 10 can be increased, thereby improving the heat conduction efficiency and the heating effect on the refrigerant.
As shown in fig. 2, the flow-through device 10 includes a first housing 11 and a second housing 12 that are connected in a sealed manner, and a refrigerant flow path is provided between the first housing 11 and the second housing 12. Thus, the processing of the flow-through device 10 can be facilitated, and the first casing 11 and the second casing 12 can be hermetically connected, so that the refrigerant leakage can be prevented.
As shown in fig. 3, the first housing 11 has a receiving groove 111, and the rim of the first housing 11 is connected with the second housing 12 to seal the receiving groove 111, and the receiving groove 111 forms a refrigerant flow passage. In the present embodiment, the accommodating groove 111 is provided only in the first housing 11, the second housing 12 is provided as a flat plate, and then the two housings are connected to form a refrigerant flow passage, which facilitates the processing of the flow-through device 10.
In the present embodiment, the first housing 11 and the second housing 12 are connected by a welding process, the first housing 11 has a welding groove 112 thereon, the welding groove 112 is located at the bottom of the receiving groove 111 and the welding groove 112 protrudes toward the second housing 12, and the welding groove 112 is welded with the second housing 12. The connection strength of the first housing 11 and the second housing 12 and the compression resistance of the refrigerant flow passage can be improved by the welding process connection, thereby improving the reliability of the device. By providing the weld groove 112, the contact area and the weld of the first housing 11 and the second housing 12 can be increased, thereby improving the structural strength of the device. In the embodiment, laser welding can be adopted, and the mode has stable quality, reliable connection and high production effect.
Specifically, the accommodating groove 111 has a U-shaped structure, the inlet and the outlet are respectively located at two ends of the U-shaped structure, the plurality of welding grooves 112 are provided, and the plurality of welding grooves 112 are arranged at intervals along the extending direction of the U-shaped structure. The heating effect on the refrigerant can be improved by providing the accommodating groove 111 in a U-shaped structure. The plurality of weld grooves 112 are provided, and the first housing 11 and the second housing 12 can be welded at the positions of the plurality of weld grooves 112, thereby reinforcing the structural strength of the device. The first housing 11 and the second housing 12 in this embodiment may each be made of a steel plate. The first housing 11 or the second housing 12 may be manufactured by a stamping process, which may improve production efficiency.
In this embodiment, the first housing 11 has a curved structure, the second housing 12 has a plate-like structure, and the edge of the first housing 11 is connected to the second housing 12. In the present embodiment, the rim of the first housing 11 is coupled to the second housing 12 by welding, so that the sealability of the receiving groove 111 and the coupling strength of the first housing 11 and the second housing 12 can be improved. The area of the surface of the second housing 12 in this embodiment is larger than the area of the surface of the first housing 11.
In this embodiment, the refrigerant heating apparatus further includes: a liquid inlet pipe 31, wherein the liquid inlet pipe 31 is communicated with the inlet; and a liquid outlet pipe 32, wherein the liquid outlet pipe 32 is communicated with the outlet. The liquid inlet pipe 31 and the liquid outlet pipe 32 are arranged, so that the circulation of the refrigerant can be facilitated.
In the present embodiment, the cross-sectional area of the refrigerant flow passage perpendicular to the extending direction is 24mm 2 To 50mm 2 The refrigerant heating device has better heating effect and defrosting effect. Therefore, the use requirement of the copper pipe with the outer diameter of 6mm to 12mm can be met, and other abnormal problems can not occur.
In this embodiment, the refrigerant heating apparatus further includes: a shield 40, the flow-through device 10 and the thick film heater 20 are disposed within the shield 40. The provision of the shield 40 protects the flow-through device 10 and the thick film heater 20, thereby increasing the service life of the device. The shield 40 may be plastic or other materials.
As shown in fig. 4, in the second embodiment of the present invention, unlike the above-described embodiment, the first housing 11 has a curved structure, the second housing 12 has a curved structure that is adapted to the first housing 11, and the rim of the first housing 11 is connected to the rim of the second housing 12. The two curve-shaped structures are matched and welded, so that high-strength sealing connection can be realized. Specifically, the first housing 11 and the second housing 12 may each be provided in a U-shaped structure.
As shown in fig. 5, another embodiment of the present invention provides an air conditioner, which includes a refrigerant heating device, wherein the refrigerant heating device is provided in the foregoing embodiment.
Specifically, the air conditioner further includes a compressor 50 and a condenser 60, an inlet of the refrigerant heating device is communicated with the compressor 50, and an outlet of the refrigerant heating device is communicated with the condenser 60. In this way, the air conditioner can heat the refrigerant outputted from the compressor 50 by the refrigerant heating device and then deliver the heated refrigerant to the condenser 60 during heating, thereby defrosting the condenser 60 during heating.
By applying the technical scheme of the embodiment, the flow-through device 10 and the thick film heater 20 are arranged in the refrigerant heating device, so that the refrigerant can flow in the refrigerant flow channel of the flow-through device 10, and the thick film heater 20 is connected with the flow-through device 10, so that the flow-through device 10 can be heated by the thick film heater 20, and the refrigerant in the refrigerant flow channel can be heated. The technical scheme of the embodiment can realize the rapid heating of the refrigerant through a simple structure.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
Claims (11)
1. A refrigerant heating apparatus, comprising:
a flow-through device (10), wherein the flow-through device (10) is provided with a refrigerant flow passage, an inlet and an outlet which are communicated with the refrigerant flow passage, and the refrigerant flow passage is used for circulating a refrigerant;
a thick film heater (20) connected with the flow-through device (10), wherein the thick film heater (20) comprises a thick film circuit, and the thick film heater (20) is used for heating the refrigerant in the refrigerant flow channel;
the circulating device (10) comprises a first shell (11) and a second shell (12) which are connected in a sealing way, and the refrigerant flow passage is positioned between the first shell (11) and the second shell (12);
the first shell (11) is provided with a containing groove (111), the edge of the first shell (11) is connected with the second shell (12) to seal the containing groove (111), and the containing groove (111) forms the refrigerant flow passage;
the first shell (11) and the second shell (12) are connected through a welding process, a welding groove (112) is formed in the first shell (11), the welding groove (112) is located at the bottom of the accommodating groove (111) and protrudes towards the second shell (12), and the welding groove (112) is welded with the second shell (12).
2. The refrigerant heating apparatus according to claim 1, wherein the refrigerant flow passage has a curved structure, and the inlet and the outlet are respectively located at two ends of the curved structure.
3. Refrigerant heating device according to claim 1, characterized in that the thick film heater (20) is of plate-like construction, the thick film heater (20) being glued to the flow-through device (10).
4. The refrigerant heating device according to claim 1, wherein the accommodating groove (111) is of a U-shaped structure, the inlet and the outlet are respectively positioned at two ends of the U-shaped structure, the plurality of welding grooves (112) are arranged at intervals along the extending direction of the U-shaped structure.
5. The refrigerant heating device according to claim 1, wherein the first housing (11) has a curved structure, the second housing (12) has a plate-like structure, and an edge of the first housing (11) is connected to the second housing (12).
6. The refrigerant heating device according to claim 1, wherein the first housing (11) has a curved structure, the second housing (12) has a curved structure adapted to the first housing (11), and an edge of the first housing (11) is connected to an edge of the second housing (12).
7. The refrigerant heating device according to claim 1, further comprising:
a liquid inlet pipe (31), wherein the liquid inlet pipe (31) is communicated with the inlet;
-a liquid outlet pipe (32), said liquid outlet pipe (32) being in communication with said outlet.
8. The refrigerant heating apparatus according to claim 1, wherein a cross-sectional area of the refrigerant flow passage perpendicular to the extending direction is 24mm 2 To 50mm 2 Between them.
9. The refrigerant heating device according to claim 1, further comprising:
-a shield (40), said flow-through device (10) and said thick film heater (20) being arranged within said shield (40).
10. An air conditioner comprising a refrigerant heating device, wherein the refrigerant heating device is the refrigerant heating device according to any one of claims 1 to 9.
11. The air conditioner according to claim 10, further comprising a compressor (50) and a condenser (60), wherein an inlet of the refrigerant heating device is in communication with the compressor (50), and an outlet of the refrigerant heating device is in communication with the condenser (60).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325900.1A CN108426393B (en) | 2018-04-12 | 2018-04-12 | Refrigerant heating device and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325900.1A CN108426393B (en) | 2018-04-12 | 2018-04-12 | Refrigerant heating device and air conditioner with same |
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| Publication Number | Publication Date |
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| CN108426393A CN108426393A (en) | 2018-08-21 |
| CN108426393B true CN108426393B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810325900.1A Active CN108426393B (en) | 2018-04-12 | 2018-04-12 | Refrigerant heating device and air conditioner with same |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109974130B (en) * | 2019-04-08 | 2024-05-07 | 广东美的暖通设备有限公司 | Heater assembly and air conditioner outdoor unit with same |
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| JPH11148730A (en) * | 1997-11-18 | 1999-06-02 | Matsushita Electric Ind Co Ltd | Laminated heat exchanger |
| CN203550173U (en) * | 2013-10-14 | 2014-04-16 | 林小里 | Thick film heater |
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| CN107883556A (en) * | 2017-10-24 | 2018-04-06 | 珠海格力电器股份有限公司 | Heater and air conditioner |
| CN208238322U (en) * | 2018-04-12 | 2018-12-14 | 珠海格力电器股份有限公司 | Refrigerant heating device and air conditioner with it |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4303263B2 (en) * | 2006-01-02 | 2009-07-29 | 株式会社ノビタ | Instantaneous hot water system for washing machine |
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2018
- 2018-04-12 CN CN201810325900.1A patent/CN108426393B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9518869D0 (en) * | 1995-09-15 | 1995-11-15 | Welwyn Components Ltd | Heating apparatus |
| JPH11148730A (en) * | 1997-11-18 | 1999-06-02 | Matsushita Electric Ind Co Ltd | Laminated heat exchanger |
| CN203550173U (en) * | 2013-10-14 | 2014-04-16 | 林小里 | Thick film heater |
| CN106413640A (en) * | 2014-02-07 | 2017-02-15 | 佐尔循环公司 | Heat exchange system for patient temperature control with multiple coolant chambers for multiple heat exchange modalities |
| TWM516699U (en) * | 2015-08-06 | 2016-02-01 | Yu-Qun Yu | Heater and its assembled water machine |
| CN107883556A (en) * | 2017-10-24 | 2018-04-06 | 珠海格力电器股份有限公司 | Heater and air conditioner |
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