CN203132221U - Refrigerant runner pipe with positive temperature coefficient (PTC) heater - Google Patents
Refrigerant runner pipe with positive temperature coefficient (PTC) heater Download PDFInfo
- Publication number
- CN203132221U CN203132221U CN201220704883.0U CN201220704883U CN203132221U CN 203132221 U CN203132221 U CN 203132221U CN 201220704883 U CN201220704883 U CN 201220704883U CN 203132221 U CN203132221 U CN 203132221U
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- pipe
- refrigerant
- pressure
- runner pipe
- connector
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Abstract
The utility model relates to air conditioner technology, and discloses a refrigerant runner pipe with a positive temperature coefficient (PTC) heater. The refrigerant runner pipe comprises a pressure bearing pipe, wherein a refrigerant flowing channel is arranged inside the pressure bearing pipe, and a refrigerant flowing-in connecting port and a refrigerant flowing-out connecting port are formed inside the refrigerant flowing channel. The refrigerant runner pipe with the PTC heater further comprises a pipe-shaped electric heater device. The pipe-shaped electric heater device comprises a wire inlet end, a heating pipe core, and a protection pipe, wherein the protection pipe is located inside the refrigerant flowing channel. The refrigerant runner pipe with the PTC heater can heat refrigerants inside the refrigerant runner pipe, and under the condition that outdoor temperature is too low, the refrigerant rubber pipe with the PTC heater can improve the temperature of the refrigerants, so that frosting of an outdoor unit heat exchanger is prevented, heat exchanging effect is improved, and the situation that heating effect of an air conditioner is poor caused by the fact that the outdoor temperature is too low is effectively improved.
Description
Technical field
The utility model relates to air-conditioning technical, is specifically related to a kind of air-conditioning pipe fitting.
Background technology
Air-conditioning heated in winter, what mainly lean on is the heat of outdoor heat converter (when heating as evaporimeter) from the absorption chamber outer air, but evaporating temperature low zero degree, airborne moisture content can condense into one deck frost at evaporator surface, and can tie thicker and thicker, have a strong impact on the air-conditioning heating effect, for eliminating this influence, the common way of air-conditioner is a period of time of being separated by to interrupt heating and start defrosting.
The utility model content
The purpose of this utility model is, a kind of refrigerant runner pipe with ptc heater is provided, and by to the refrigerant heating, solves above-mentioned technical problem.
The technical problem that the utility model solves is to realize by the following technical solutions:
The refrigerant runner pipe of band ptc heater, also comprise a pressure-bearing pipe, be provided with a refrigerant circulation passage in the described pressure-bearing pipe, described refrigerant circulation passage is provided with a refrigerant and flows into connector, refrigerant outflow connector, it is characterized in that the refrigerant runner pipe of described band ptc heater also comprises a pipe heater device, described pipe heater device comprises an end of incoming cables, heating tube core, protection tube, described end of incoming cables connects described heating tube core, and described heating tube core is positioned at described protection tube; Described protection tube is positioned at described refrigerant circulation passage.
The refrigerant runner pipe of band ptc heater can be to the refrigerant heating of its inside, and under the low excessively situation of outdoor temperature, the refrigerant runner pipe of band ptc heater can improve refrigerant temperature, makes evaporator surface temperature prevent that greater than zero degree frosting from improving heating capacity.
Described pipe heater device can be single-ended heater.Described heating tube core can adopt metal positive temperature coefficient temperature-sensitive electric heater tube core, also can adopt ceramic ptc heater tube core.Preferable alloy positive temperature coefficient temperature-sensitive electric heater tube core.Metal positive temperature coefficient temperature-sensitive electric heater had both had the intensity of stainless steel electric heating tube, the self-tuning performance that also has ceramic PTC the more important thing is that resistance strengthens under abnormal operating state, and power reduces, surface temperature is reduced, have higher security.And because metal positive temperature coefficient temperature-sensitive electric heater surface temperature can be accomplished relatively stablely, and this also makes the consumer when using the air-conditioning electric heating function, and fluctuations in indoor temperature reduces, comfort is stronger.
The pressure-bearing pipe that described pressure-bearing pipe is the oxygen-free copper material, the bearing capacity of pressure-bearing pipe are preferably 3MPa above (comprising 3MPa).Described pressure-bearing length of tube can be 50mm-500mm, preferred 220mm; Internal diameter can be Φ 5mm-Φ 60mm, preferred Φ 30mm; Material is preferably oxygen-free copper.
As a kind of preferred version, described refrigerant flows out the end that connector is positioned at described pressure-bearing pipe.Refrigerant flows into connector and opens on the sidewall of described pressure-bearing pipe, is positioned at an end that flows out connector away from described refrigerant.Described pressure-bearing pipe is away from the port sealing of described refrigerant outflow connector, and described end of incoming cables is stretched out by the port of sealing, to prevent coolant leakage.
Described protection tube length can be 35mm-450mm, preferred 205mm; Internal diameter is Φ 4mm-Φ 50mm, preferred Φ 18mm; Material is preferably oxygen-free copper.Can stretching into described pressure-bearing pipe, and and the pressure-bearing pipe between leave the space and be as the criterion.Described protection tube is around with fin, to improve the efficiency of heating surface.The preferred oxygen-free copper fin of described fin.Described oxygen-free copper stripe is wound in the ripple helical form as thermofin, and described screw-shaped oxygen-free copper fin and pressure-bearing pipe, protection tube closely cooperate, and the fluid passage area is not less than the area of Φ 4 in the described spiral helicine oxygen-free copper fin.
As another kind of preferred version, described refrigerant flows out the end that connector is positioned at described pressure-bearing pipe.Refrigerant flows into connector and opens on the sidewall of described pressure-bearing pipe, is positioned at an end that flows out connector away from described refrigerant.Also be provided with one in the described refrigerant circulation passage for the heating tube that holds the pipe heater device, described heating tube one end sealing, the fixedly connected described pressure-bearing pipe of the other end flows out an end of connector away from described refrigerant, the described pipe heater device described heating tube that removably connects.To prevent in the use, because changing the coolant leakage that described pipe heater device causes.
Described heating tube length can be 35mm-450mm, preferred 205mm; Internal diameter is Φ 4mm-Φ 50mm, preferred Φ 18mm; Material is preferably oxygen-free copper.Can stretching into described pressure-bearing pipe, and and the pressure-bearing pipe between leave the space and be as the criterion.Fluid passage area between described heating tube and the described pressure-bearing pipe is not less than the area of Φ 4.Described heating tube and described protection tube closely cooperate.Described protection tube is outer can also to be wound with fin, to improve the efficiency of heating surface.The preferred oxygen-free copper fin of described fin.Described oxygen-free copper fin and heating tube, protection tube closely cooperate.
The refrigerant runner pipe of described band ptc heater can also comprise a temperature protective device, and described temperature protective device comprises a temperature controller and thermal cut-off, and described temperature controller and thermal cut-off are connected with electric heater and be connected to end of incoming cables 4.
Described temperature controller and thermal cut-off preferably are positioned at the described pressure-bearing pipe outside, and do not contact described pipe heater device, with direct detection refrigerant self-temperature.Preferably be positioned at described pressure-bearing pipe position placed in the middle, detected temperatures is more accurate like this, and temperature controller is according to the duty of the temperature control pipe heater device of refrigerant.
The refrigerant runner pipe that connects air-conditioning for convenience, described pressure-bearing pipe also is provided with a feed tube, described feed tube is " L ", one end is provided with an outwardly open horn mouth, the refrigerant runner pipe of air-conditioning inserts described feed tube by this horn mouth, the other end connects described refrigerant and flows into connector, and the other end is used for connecting the refrigerant runner pipe of air-conditioning; Described pressure-bearing pipe also is provided with an escape pipe, described escape pipe one end connects described refrigerant and flows out connector, described escape pipe flows out the internal diameter of an end at connector place greater than the external diameter of the refrigerant runner pipe of air-conditioning away from described refrigerant, the refrigerant runner pipe of air-conditioning inserts escape pipe by the port that flows out the connector place away from described refrigerant.
Described feed tube and described refrigerant flow between connector, described escape pipe and the described refrigerant outflow connector and preferably adopt the mode of soldering or argon arc welding to weld.Can bear the pressure (30kgf/cm2) of 3MPa after the assurance welding.The soldering of the preferred high phosphorus copper scolder of soldering.It can be a turned welt of digging to the pressure-bearing pipe outside that described refrigerant flows into connector.The preferred Φ 4.9mm-of described turned welt internal diameter Φ 20mm, preferred Φ 8.1mm.To guarantee welding quality.Described refrigerant flows out the mouth of pipe that connector adopts described pressure-bearing pipe, the described mouth of pipe be one in the described pressure-bearing pipe side opening horn-like.The preferred Φ 4.9mm-of described spout diameter Φ 20mm, preferred Φ 8.1mm.To adapt to the caliber of escape pipe.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, the refrigerant runner pipe of band ptc heater mainly comprises pressure-bearing pipe 1, pipe heater device 2.Be provided with a refrigerant circulation passage in the pressure-bearing pipe 1, the refrigerant circulation passage is provided with a refrigerant and flows into connector, refrigerant outflow connector.Pipe heater device 2 comprises an end of incoming cables 4, heating tube core, protection tube.The protection tube of pipe heater device 2 is positioned at the refrigerant circulation passage of pressure-bearing pipe 1.
Specific embodiment one
One port of pressure-bearing pipe 1 is that refrigerant flows into connector, and a port is that refrigerant flows out connector.The protection tube of pipe heater device 2 is positioned at pressure-bearing pipe 1, forms the refrigerant circulation passage between protection tube and the pressure-bearing pipe 1.
Refrigerant flows out the end that connector is positioned at described pressure-bearing pipe 1.Refrigerant flows into connector and opens on the sidewall of described pressure-bearing pipe 1, is positioned at an end that flows out connector away from described refrigerant.Pressure-bearing pipe 1 is away from the port sealing of refrigerant outflow connector, and end of incoming cables 4 is stretched out by the port of sealing.To prevent coolant leakage.
Protection tube length can be 35mm-450mm, preferred 205mm; Internal diameter is Φ 4mm-Φ 50mm, preferred Φ 18mm; Material is preferably oxygen-free copper.Can stretching into pressure-bearing pipe 1, and and pressure-bearing pipe 1 between leave the space and be as the criterion.Protection tube is around with fin, to improve the efficiency of heating surface.The preferred oxygen-free copper fin of fin.The oxygen-free copper fin is wound in helical form, and spiral helicine oxygen-free copper fin 3 closely cooperates with pressure-bearing pipe 1, protection tube, surrounds a refrigerant circulation passage by oxygen-free copper fin, pressure-bearing pipe, protection tube.The fluid passage area is not less than the area of Φ 4 in the spiral helicine oxygen-free copper fin 3.
Escape pipe 6 connectors are positioned at an end of described pressure-bearing pipe 1.Refrigerant flows into connector and opens on the sidewall of described pressure-bearing pipe 1, is positioned at an end that flows out connector away from described refrigerant.Also be provided with a heating tube that is used for holding pipe heater device 2 in the refrigerant circulation passage, the sealing of heating tube one end, the fixedly connected described pressure-bearing pipe 1 of the other end flows out an end of connector away from refrigerant, the pipe heater device 2 described heating tube that removably connects.To prevent in the use, because changing the coolant leakage that described pipe heater device 2 causes.
Heating tube length can be 35mm-450mm, preferred 205mm; Internal diameter is Φ 4mm-Φ 50mm, preferred Φ 18mm; Material is preferably oxygen-free copper.Can stretching into pressure-bearing pipe 1, and and pressure-bearing pipe 1 between leave the space and be as the criterion.Fluid passage area between heating tube and the described pressure-bearing pipe 1 is not less than the area of Φ 4.Heating tube and protection tube closely cooperate.Protection tube is outer can also to be wound with fin, to improve the efficiency of heating surface.The preferred oxygen-free copper fin of fin.Oxygen-free copper fin and heating tube, protection tube closely cooperate.
In the above-mentioned specific embodiment 1,2,3; the refrigerant runner pipe of band ptc heater can also comprise a temperature protective device 7; temperature protective device 7 comprises a temperature controller and thermal cut-off; temperature controller is connected a signal processing apparatus with thermal cut-off, signal processing apparatus connects the end of incoming cables 4 of pipe heater device 2.
Temperature controller and thermal cut-off preferably are positioned at described pressure-bearing pipe 1 outside, and do not contact described pipe heater device 2.With direct detection refrigerant self-temperature.Preferably be positioned at described pressure-bearing pipe 1 position placed in the middle, it is more accurate to catch temperature like this.Temperature controller is according to the duty of the temperature control pipe heater device 2 of refrigerant.
Temperature controller and thermal cut-off can also be positioned at pressure-bearing pipe 1 outside.Preferably be positioned at pressure-bearing pipe 1 outer wall position placed in the middle, it is more accurate to catch temperature like this.Temperature controller is according to the duty of the temperature control pipe heater device 2 of external environment.
The refrigerant runner pipe that connects air-conditioning for convenience, pressure-bearing pipe 1 also is provided with a feed tube 5, feed tube 5 is " L ", one end is provided with an outwardly open horn mouth, the refrigerant runner pipe of air-conditioning inserts described feed tube 5 by this horn mouth, the other end connects described refrigerant and flows into connector, and the other end is used for connecting the refrigerant runner pipe of air-conditioning; Described pressure-bearing pipe 1 also is provided with an escape pipe 6, described escape pipe 6 one ends connect described refrigerant and flow out connector, described escape pipe 6 flows out the internal diameter of an end at connector place greater than the external diameter of the refrigerant runner pipe of air-conditioning away from described refrigerant, the refrigerant runner pipe of air-conditioning inserts escape pipe 6 by the port that flows out the connector place away from described refrigerant.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. be with the refrigerant runner pipe of ptc heater, comprise a pressure-bearing pipe, be provided with a refrigerant circulation passage in the described pressure-bearing pipe, described refrigerant circulation passage is provided with a refrigerant and flows into connector, refrigerant outflow connector, it is characterized in that the refrigerant runner pipe of described band ptc heater also comprises a pipe heater device, described pipe heater device comprises an end of incoming cables, heating tube core, protection tube, described end of incoming cables connects described heating tube core, and described heating tube core is positioned at described protection tube; Described protection tube is positioned at described refrigerant circulation passage.
2. the refrigerant runner pipe of band ptc heater according to claim 1 is characterized in that, described heating tube core adopts metal positive temperature coefficient temperature-sensitive electric heater tube core.
3. the refrigerant runner pipe of band ptc heater according to claim 1 is characterized in that, described heating tube core adopts ceramic ptc heater tube core.
4. according to the refrigerant runner pipe of claim 1,2 or 3 described band ptc heaters, it is characterized in that described refrigerant flows out the end that connector is positioned at described pressure-bearing pipe;
Refrigerant flows into connector and opens on the sidewall of described pressure-bearing pipe, is positioned at an end that flows out connector away from described refrigerant;
Described pressure-bearing pipe is away from the port sealing of described refrigerant outflow connector, and described end of incoming cables is stretched out by the port of sealing.
5. the refrigerant runner pipe of band ptc heater according to claim 4 is characterized in that, described pressure-bearing length of tube is 50mm-500mm, and internal diameter is Φ 5mm-Φ 60mm, and described protection tube length is 35mm-450mm, and internal diameter is Φ 4mm-Φ 50mm.
6. the refrigerant runner pipe of band ptc heater according to claim 4 is characterized in that, the pressure-bearing pipe that described pressure-bearing pipe is the oxygen-free copper material.
7. according to the refrigerant runner pipe of claim 1,2 or 3 described band ptc heaters, it is characterized in that described protection tube is around with fin, described fin is the oxygen-free copper fin, and described oxygen-free copper fin is wound in helical form.
8. according to the refrigerant runner pipe of claim 1,2 or 3 described band ptc heaters, it is characterized in that, the refrigerant runner pipe of described band ptc heater also comprises a temperature controller and temperature fuse, the pipeline outside also comprises a temperature controller and thermal cut-off, described temperature controller is connected a signal processing apparatus with thermal cut-off, described signal processing apparatus connects the end of incoming cables of described pipe heater device, described temperature controller and thermal cut-off are positioned at the described pressure-bearing pipe outside, and do not contact described pipe heater device.
9. according to the refrigerant runner pipe of claim 1,2 or 3 described band ptc heaters, it is characterized in that, the refrigerant runner pipe of described band ptc heater also comprises a temperature controller, described temperature controller comprises a temperature controller and thermal cut-off, described temperature controller is connected a signal processing apparatus with thermal cut-off, described signal processing apparatus connects the end of incoming cables of described pipe heater device, and described temperature controller and thermal cut-off are positioned at outside the described pressure-bearing pipe.
10. according to the refrigerant runner pipe of claim 1,2 or 3 described band ptc heaters, it is characterized in that,
Described pressure-bearing pipe also is provided with a feed tube, described feed tube is " L ", and an end is provided with an outwardly open horn mouth, and the refrigerant runner pipe of air-conditioning inserts described feed tube by this horn mouth, the other end connects described refrigerant and flows into connector, and the other end is used for connecting the refrigerant runner pipe of air-conditioning;
Described pressure-bearing pipe also is provided with an escape pipe, described escape pipe one end connects described refrigerant and flows out connector, described escape pipe flows out the internal diameter of an end at connector place greater than the external diameter of the refrigerant runner pipe of air-conditioning away from described refrigerant, the refrigerant runner pipe of air-conditioning inserts escape pipe by the port that flows out the connector place away from described refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220704883.0U CN203132221U (en) | 2012-12-18 | 2012-12-18 | Refrigerant runner pipe with positive temperature coefficient (PTC) heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220704883.0U CN203132221U (en) | 2012-12-18 | 2012-12-18 | Refrigerant runner pipe with positive temperature coefficient (PTC) heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203132221U true CN203132221U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220704883.0U Expired - Fee Related CN203132221U (en) | 2012-12-18 | 2012-12-18 | Refrigerant runner pipe with positive temperature coefficient (PTC) heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203132221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591751A (en) * | 2013-10-30 | 2014-02-19 | 西安交通大学 | Defrosting system of air cooling refrigerator and defrosting control method thereof |
| CN112964008A (en) * | 2021-02-26 | 2021-06-15 | 珠海格力电器股份有限公司 | Heat exchange tube, evaporator and refrigerator |
-
2012
- 2012-12-18 CN CN201220704883.0U patent/CN203132221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591751A (en) * | 2013-10-30 | 2014-02-19 | 西安交通大学 | Defrosting system of air cooling refrigerator and defrosting control method thereof |
| CN112964008A (en) * | 2021-02-26 | 2021-06-15 | 珠海格力电器股份有限公司 | Heat exchange tube, evaporator and refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |