CN213661991U - Heating metal pipe - Google Patents
Heating metal pipe Download PDFInfo
- Publication number
- CN213661991U CN213661991U CN202022274258.4U CN202022274258U CN213661991U CN 213661991 U CN213661991 U CN 213661991U CN 202022274258 U CN202022274258 U CN 202022274258U CN 213661991 U CN213661991 U CN 213661991U
- Authority
- CN
- China
- Prior art keywords
- metal tube
- heating
- metal
- heating element
- tube
- 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.)
- Active
Links
Images
Landscapes
- Resistance Heating (AREA)
Abstract
The application provides a heating metal tube, including heating element and tubular metal resonator casing, the enclosed construction that tubular metal resonator casing one end formed for through shearing extrusion tubular metal resonator casing, and heating element sets up in the tubular metal resonator casing. The method is generally applied to the electric vacuum industry, the sealing structure of the metal pipe produced in the mode is generally sharp and is easy to cut the skin of a person, and further an insulating heat conduction cover can be arranged on the sealing structure of the metal pipe shell to isolate and protect the sharp sealing structure. The heating metal tube has the advantages of high sealing efficiency and good sealing performance, and can effectively solve the technical problem of silica gel aging in the prior art.
Description
Technical Field
The utility model relates to the technical field of electrical apparatus, concretely relates to heating metal tube.
Background
Due to the special positive temperature coefficient characteristic, the PTC heater product is widely applied to heating in the field of household appliances, such as air conditioner auxiliary heating, a fan heater, a bath heater and the like; defrosting of a traditional fuel automobile, heating in a new energy automobile, battery heat management and the like. In addition, in the field of high-power heating, the application range of the PTC heater is still expanding.
The PTC heater adopts PTC ceramic as a core heating element, and has the advantages of automatic temperature control, wide application voltage range, no open fire, safety, reliability, long service life and the like compared with the traditional heating wire, electric heating tube and far infrared quartz heater.
The heat generated by the PTC ceramic element is transferred to the heated liquid through the metal electrode, the insulating layer and the aluminum pipe to play a heating role. In order to ensure that liquid does not enter the interior of the heating aluminum tube, the two ends of the aluminum tube must be sealed by silica gel. Because the head of the PTC ceramic element is not contacted with liquid, but the silica gel at the bottom end of the PTC ceramic element is soaked in the liquid for a long time to heat the liquid, and the temperature of the liquid is higher, the aging of a sealing silica gel layer is easy to be too fast, the service life of a heating pipe is influenced, and certain potential safety hazards also exist. For example, the silicone gel cracks due to aging, or the adhesive property is reduced to cause a gap between the silicone gel and the aluminum tube, and the heated liquid easily penetrates into the aluminum tube. To solve the problem, I developed a heater with a closed aluminum tube at one end.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the application provides a heating metal tube, and one end of the heater immersed in water is of a closed structure, so that the aging of the silica gel seal immersed in water is avoided.
Specifically, the application provides a heating tubular metal resonator, including heating element and tubular metal resonator casing, the structure of tubular metal resonator casing one end is through shearing the extrusion the enclosed construction that the tubular metal resonator casing formed, heating element sets up in the tubular metal resonator casing.
The method is generally applied to the electric vacuum industry, the sealing structure of the metal pipe produced in the mode is generally sharp and is easy to cut the skin of a person, and further an insulating heat conduction cover can be arranged on the sealing structure of the metal pipe shell to isolate and protect the sharp sealing structure.
The technical effects are as follows: the mode has the advantages of high sealing efficiency and good sealing performance, and can effectively solve the technical problem of silica gel aging in the prior art.
Preferably, the metal tube housing is an aluminum tube.
The technical effects are as follows: the aluminum pipe has high heat conduction efficiency and certain plasticity, and is convenient for shearing and sealing the aluminum pipe.
Preferably, one end of the metal tube shell is constructed as a closed structure formed by shearing and extruding the metal tube shell through cold forging or warm forging.
According to the technical scheme, one end of the metal tube shell can be cut, extruded and sealed at normal temperature, the temperature range can be 0-600 ℃, sealing efficiency is high, and the requirement on temperature is not strict during common workshop processing.
Preferably, the port at the other end of the metal tube shell is filled with a sealing glue. The end filled with the sealing glue is generally used as a head part and is not soaked in liquid, so that the head part is not influenced by soaking aging.
Preferably, the metal pipe and the heating assembly are arranged in a pressing mode. The utility model is used for the metal tube and the heating component to closely joint to have reduced the thermal resistance, and then improve this application heating metal tube's heat transfer efficiency.
Furthermore, the heating assembly comprises two heating elements and two metal electrodes, and the two metal electrodes are respectively arranged on two sides of the heating elements.
Preferably, an insulating film is provided outside the metal electrode and the heating element.
The metal electrode is used for preventing electricity from being transmitted between the metal electrode and the metal shell, so that the technical problem of electric leakage during heating is effectively solved.
Preferably, the material of the insulating film is polyimide.
The technical effects are as follows: the polyimide has high heat resistance, and can resist high temperature of more than 400 ℃; secondly it has very high insulating properties, therefore its one side can effectively guarantee this application heating metal tube's life, and on the other hand also can avoid in the heating metal tube electric leakage to liquid to the security when having improved this application heating metal tube and using.
Preferably, the heating element is a PTC ceramic heating element.
It has the advantages of positive temperature coefficient characteristic and high heat exchange efficiency. Compared with the traditional heating wire, electric heating tube and far infrared quartz heater, the PTC ceramic heating element has the advantages of automatic temperature control, wide application voltage range, no open fire, safety, reliability, long service life and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below.
Fig. 1 is an exploded view of a heated metal tube according to the present embodiment.
Wherein the reference numbers referred to in the figures are as follows:
11-a heating assembly; 12-a metal tube housing; 13-a metal electrode; 14-PTC ceramic heating elements; 15-insulating film.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the present embodiment provides a heated metal pipe, which includes a heating assembly 11 and a metal pipe housing 12, wherein one end of the metal pipe housing 12 is configured as a closed structure formed by shear-extruding the metal pipe housing 12, and the heating assembly 11 is disposed in the metal pipe housing 12.
The metal pipe is cut by adopting a sealing clamp or an aluminum extruded section, and the metal pipe forms a seal when being cut.
The technical effects are as follows: the mode has the advantages of high sealing efficiency and good sealing performance, and can effectively solve the technical problem of silica gel aging in the prior art.
As an embodiment of the present application, the metal tube housing 12 is an aluminum tube.
The technical effects are as follows: the aluminum pipe has high heat conduction efficiency and certain plasticity, and is convenient for shearing and sealing the aluminum pipe.
As an embodiment of the present application, one end of the metal tube housing 12 is configured as a closed structure formed by cold forging or warm forging shear extrusion of the metal tube housing 12.
According to the technical scheme, one end of the metal tube shell 12 can be cut, extruded and sealed at normal temperature, the temperature range can be 0-600 ℃, sealing efficiency is high, and the requirement on temperature is not strict during common workshop processing.
As an embodiment of the present application, a port at the other end of the metal tube housing 12 is filled with a sealing glue. The end filled with the sealing glue is generally used as a head part and is not soaked in liquid, so that the head part is not influenced by soaking aging.
As an embodiment of the present application, the metal tube and the heating element 11 are disposed in a pressing manner.
It is used for making and closely laminating between tubular metal resonator and heating element 11 to have reduced the thermal resistance, and then improve this application heating tubular metal resonator's heat transfer efficiency.
Further, the heating assembly 11 includes a heating element and two metal electrodes 13, the number of the metal electrodes 13 is two, and the two metal electrodes 13 are respectively disposed on two sides of the heating element.
In one embodiment of the present application, the metal electrode 13 and the heating element include an insulating film 15.
The metal electrode is used for preventing electricity from being transmitted between the metal electrode 13 and the metal shell, so that the technical problem of electric leakage during heating is effectively solved.
In one embodiment of the present application, the material of the insulating film 15 is polyimide.
The technical effects are as follows: the polyimide has high heat resistance, and can resist high temperature of more than 400 ℃; secondly it has very high insulating properties, therefore its one side can effectively guarantee this application heating metal tube's life, and on the other hand also can avoid in the heating metal tube electric leakage to liquid to the security when having improved this application heating metal tube and using.
As an embodiment of the present application, the heating element is a PTC ceramic heating element 14.
It has the advantages of positive temperature coefficient characteristic and high heat exchange efficiency. Compared with the traditional heating wire, electric heating tube and far infrared quartz heater, the PTC ceramic heating element 14 has the advantages of automatic temperature control, wide application voltage range, no open fire, safety, reliability, long service life and the like.
The installation process comprises the following steps:
first, the metal tube shell 12 is prepared by using an aluminum tube, and cutting and sealing one end of the aluminum tube and opening the other end of the aluminum tube by using a cold forging or warm forging process.
Then, the PTC ceramic heating elements 14 and the metal electrodes 13 for electrical conduction are arranged, and wrapped with polyimide insulating films, and then the wrapped imide insulating films are inserted into the corresponding metal tube housings 12, and the metal tube housings 12 are subjected to a pressing operation by a pressing device such as an oil press or a roller press, so that the imide insulating films are tightly attached to the metal tube housings 12, and the thermal resistance is reduced.
The other end of the metal tube shell 12 is sealed with silica gel.
For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (9)
1. A heated metal tube comprising a heating assembly and a metal tube shell, one end of said metal tube shell being configured as a closed structure formed by shear extrusion of said metal tube shell, said heating assembly being disposed within said metal tube shell.
2. The heated metal tube of claim 1, wherein the metal tube housing is an aluminum tube.
3. The heated metal tube of claim 1 or 2, wherein the one end of the metal tube shell is configured as a closed structure formed by cold or warm shear extrusion of the metal tube shell.
4. The heated metal tube of claim 1 or 2, wherein a port at the other end of the metal tube housing is filled with a sealing glue.
5. The heated metal tube of claim 1 or 2, wherein the metal tube and the heating element are in a press fit arrangement.
6. The heated metal tube of claim 1, wherein the heating assembly includes a heating element and two metal electrodes, and the two metal electrodes are respectively disposed at both sides of the heating element.
7. The heated metal tube of claim 6, wherein the metal electrode and the heating element include an insulating film thereon.
8. The heated metal tube as claimed in claim 7, wherein the material of the insulating film is polyimide.
9. The heated metal tube of claim 7 or 8, wherein the heat generating element is a PTC ceramic heat generating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022274258.4U CN213661991U (en) | 2020-10-13 | 2020-10-13 | Heating metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022274258.4U CN213661991U (en) | 2020-10-13 | 2020-10-13 | Heating metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213661991U true CN213661991U (en) | 2021-07-09 |
Family
ID=76700685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022274258.4U Active CN213661991U (en) | 2020-10-13 | 2020-10-13 | Heating metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213661991U (en) |
-
2020
- 2020-10-13 CN CN202022274258.4U patent/CN213661991U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202160295U (en) | Miniature pool and PTC heater for heating liquid therein | |
| US20230417450A1 (en) | Ptc heater | |
| CN105960031B (en) | A kind of electricity heat-producing machine and preparation method thereof | |
| CA2448314A1 (en) | Corrugated metal ribbon heating element | |
| CN104869674A (en) | PTC (Positive Temperature Coefficient) electric heating tube and electric vehicle water heater | |
| CN213661991U (en) | Heating metal pipe | |
| JP2008084827A (en) | Heater using positive temperature coefficient thermistor | |
| CN210405693U (en) | Corrugated sheet type PTC heater for aluminum pipe brazing | |
| CN216852402U (en) | PTC heating tube and PTC heater | |
| CN210868202U (en) | Metal electrode and round tube PTC heater | |
| CN213661966U (en) | Air heating surface charged PTC heater | |
| CN213661964U (en) | Air heating surface charged PTC heater | |
| CN211047272U (en) | Square metal tube PTC heater and heating device | |
| CN208241911U (en) | A kind of sheathed heater cold end structure | |
| CN213661982U (en) | PTC water heater | |
| CN211451371U (en) | PTC semiconductor electric heating plate type heat exchanger | |
| CN210781397U (en) | PTC heater of high power density | |
| CN213661992U (en) | Cabinet heater | |
| CN213661986U (en) | High-reliability anti-creeping PTC heater | |
| CN219627914U (en) | PTC heating bag for heating water of new energy vehicle | |
| CN216626087U (en) | Corrosion-resistant PTC water heater and PTC heater for SPA pool | |
| CN218154933U (en) | Electric heating efficient gas-liquid separator | |
| CN220935343U (en) | Full-packaging heating plate | |
| CN211909194U (en) | Bimetal tube PTC heater | |
| CN213661965U (en) | PTC heater for arc-shaped pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |