CN208029122U - A kind of PTC electric heater with sealing structure - Google Patents
A kind of PTC electric heater with sealing structure Download PDFInfo
- Publication number
- CN208029122U CN208029122U CN201820255324.3U CN201820255324U CN208029122U CN 208029122 U CN208029122 U CN 208029122U CN 201820255324 U CN201820255324 U CN 201820255324U CN 208029122 U CN208029122 U CN 208029122U
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- ptc
- aluminum pipe
- electric heater
- heating elements
- rubber stopper
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Abstract
The utility model discloses a kind of PTC electric heaters with sealing structure, including centrally located heating device, the heating device includes PTC heating elements, electrode slice, insulating trip and the aluminum pipe being socketed successively from inside to outside, the PTC heating elements are connected by electrode slice with conducting wire, the PTC heating elements, electrode slice, insulating trip and aluminum pipe length be in stepped raising from inside to outside；Gap location between aluminum pipe and PTC heating elements is provided with sealing mechanism, the sealing mechanism includes silica gel filler and rubber stopper, wherein the rubber stopper is located at the upper end port of aluminum pipe, in gap of the silica gel filler between PTC heating elements and rubber stopper.Inside the heating device completely and air exclusion, the influence of steam and oxygen to heating device is avoided, to improve the safety of PTC electric heater, makes it have more wide applicability.
Description
Technical field
The utility model belongs to PTC electric heater field, and in particular to a kind of PTC electric heater with sealing structure.
Background technology
As a kind of safe and reliable mode of heating, PTC electric heater is in households such as warm-air drier, air-conditioning, dryers
It is widely used on electric appliance.With the development of social progress and new energy, PTC electric heater is also followed by new energy
The other fields of orientation direction, bring unprecedented business opportunity to PTC electric heater, PTC element manufacturing industry, heater assembling
Industry and the mating industry of each material obtain huge development.
The PTC calandrias of PTC electric heater are sealed to end, tail portion nozzle with silica gel, and Fig. 1 and Fig. 2 are respectively
The front view and vertical view of prior art PTC electric heater, the electrode slice being connected with PCT heating elements and conducting wire evagination air
In.If the working environment humidity of PTC calandrias is larger, the structure of this evagination will improve in PTC electric heater because of steam
Short circuit phenomenon caused by condensation, long-term exposed work in air of electrode slice also can cause breaking phenomena by oxidation corrosion, to
The security performance and service life for reducing PTC electric heater, reduce the scope of application of PTC electric heater.Therefore it needs to set
Count a kind of good PTC electrical heating that can completely cut off steam and oxygen of leakproofness.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of PTC electric heaters with sealing structure.
It realizes above-mentioned technical purpose, reaches above-mentioned technique effect, the utility model is achieved through the following technical solutions：
A kind of PTC electric heater with sealing structure, it is characterised in that：It is described including centrally located heating device
Heating device include the PTC heating elements, electrode slice, insulating trip and the aluminum pipe that are socketed successively, PTC heating from inside to outside
Element is connected by electrode slice with conducting wire, the PTC heating elements, electrode slice, insulating trip and aluminum pipe length from inside to outside
In stepped raising；
Gap location between aluminum pipe and PTC heating elements is provided with sealing mechanism, and the sealing mechanism includes silica gel
Filler and rubber stopper, wherein the rubber stopper is located at the upper end port of aluminum pipe, the silica gel filler adds positioned at PTC
In gap between thermal element and rubber stopper；
Further include the conducting wire being connected with heating device, the conducting wire runs through filler and rubber stopper.
The rubber stopper includes three-decker as a further improvement of the utility model, includes sequentially from bottom to up
The bullet of setting, with the matched seal of aluminum pipe internal diameter and positioned at the positioning body in outside；In the centre of the rubber stopper
If there are two perforative wire guides.
The height of the seal is equal to insulating trip to irriation aluminium pipe mouth end as a further improvement of the utility model,
Distance, the height of the bullet is less than PTC electrical heating elements to the distance of insulating trip end.
The shape of the wire guide includes the round estrade positioned at lower end and position as a further improvement of the utility model,
The internal diameter of cylinder in upper end, the cylinder is slightly less than the outer diameter of conducting wire.
The conducting wire is connected by riveting method with electrode slice as a further improvement of the utility model,.
The sealing mechanism further includes the pyrocondensation for wrapping up riveting location as a further improvement of the utility model,
Pipe.
The silica gel filler is filled in all gaps of heater as a further improvement of the utility model,.
Further include cooling fin as a further improvement of the utility model, the cooling fin is arranged on the outside of aluminum pipe.
The beneficial effects of the utility model：Electrode slice designed by the utility model is built in heating device, and is used
Rubber stopper and silica gel filler are filled up completely the gap in heating device and will be attached positioned at electrode slice in electrode slice and heating device
The lead end of part is completely sealed, and makes it completely and air exclusion, avoids the influence of steam and oxygen to heating device, from
And the safety of PTC electric heater is improved, make it have more wide applicability.
Description of the drawings
Fig. 1 is the front view of prior art PTC electric heater；
Fig. 2 is the vertical view of prior art PTC electric heater；
Fig. 3 is the sectional view of the utility model electric heater；
Fig. 3（a）For the enlarged drawing of the sealing mechanism of Fig. 3 electric heater lead ends；
Fig. 4（a）, Fig. 4（b）And Fig. 4（c）The respectively front view of rubber stopper, sectional view and dimensional structure diagram；
Wherein：1-PTC heating elements, 2- electrode slices, 3- insulating trips, 4- heat-shrink tubes, 5- silica gel fillers, 6- conducting wires, 7-
Aluminum pipe, 8- rubber stoppers, 811- bullets, 812- seals, 813- positioning bodies, 82- wire guides, 9- cooling fins.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain this practicality
It is novel, it is not used to limit the utility model.
The application principle of the utility model is explained in detail below in conjunction with the accompanying drawings.
The PTC electric heater of the utility model of the utility model design as shown in Figure 3, including centrally located heating
Device and the cooling fin 9 on the outside of heating device.The heating device includes the PTC heating units being socketed successively from inside to outside
Part 1, electrode slice 2, insulating trip and aluminum pipe 7, the PTC heating elements 1, electrode slice 2, insulating trip 3 and aluminum pipe 7 are total to ground level peace
Dress, their length are in the raising of step type from inside to outside, electrode slice 2 are built in the aluminum pipe 7, are added later in PTC
1 upper end of thermal element is provided with sealing mechanism with the gap of 7 inside of aluminum pipe, and PTC heating elements 1 and electrode slice 2 and the external world is empty
Air bound is exhausted.Wherein the electrode slice 2 is symmetrically arranged in the both ends of a diameter of PTC heating elements 1, the insulating trip
3 is closely coupled with electrode slice 2.
In the utility model, the PTC heating elements 1 are connected by electrode slice 2 with conducting wire 6, the sealing mechanism
Further include simultaneously the conductor leading end for sealing 1 upper end of PTC heating elements.The sealing mechanism includes 5 He of silica gel filler
Rubber stopper 8, wherein the rubber stopper 8 is located at the upper end port of aluminum pipe 7, the silica gel filler 5 is located at PTC heating units
In gap between part 1 and rubber stopper 8, in order to ensure to reach good sealing effect, all gaps in the heater
In be all filled with silica gel filler 5 and protect each element in device, while all parts in electric heater being connected to
Together.
The rubber stopper 8 as shown in Fig. 4 a, Fig. 4 b and Fig. 4 c includes three-decker to adapt to the step type inside electric heater
Structure, the rubber stopper 8 includes from bottom to up the bullet 811 that is sequentially arranged, with the matched seal of 7 internal diameter of aluminum pipe
812 and the positioning body 813 positioned at outside；Wherein at the end position of PTC heating elements 1, the height of the bullet 811
Less than the distance that PTC electrical heating elements 1 arrive 3 end of insulating trip, the diameter of the bullet 811 is less than between insulating trip 3
Distance facilitates the inside that rubber stopper 8 is placed in insulating layer.The height of the seal 812 is equal to insulating trip 3 and is managed to aluminum pipe 7
The distance of mouth end, the diameter of the seal 812 are slightly less than the diameter of aluminum pipe 7, facilitate and rubber stopper 8 is placed in aluminum pipe 7
Portion, since there is rubber stopper 8 certain elasticity, aluminum pipe 7 to be squeezed fixed PTC electrical heating elements 1, electrode slice 2, insulating trip by external force
3 and rubber stopper 8 after, 7 diameter of aluminum pipe become smaller and be less than 8 diameter of rubber stopper, therefore can be played after filling in aluminum pipe 7 well it is close
Envelope acts on.The diameter of the positioning 813 is more than the diameter of the aluminum pipe 7.
The heating device is connected by conducting wire 6 with external power, the conductor leading end in aluminum pipe 7, the conducting wire 6
Through filler and rubber stopper 8, two perforative wire guides 82 are additionally provided in the centre of the rubber stopper 8.The conducting wire
The lower end in hole 82 extends there through the round estrade that diameter is gradually reduced from top to bottom for convenience of conducting wire 6, and the upper end is cylinder, described
The diameter of cylinder be slightly less than the outer diameter of conducting wire 6, utilize the elastic property of rubber stopper 8 to be in close contact with conducting wire 6, ensure sealing
Property.
Conducting wire 6 described in the utility model is connected by riveting method with electrode slice 2, in order to prevent due to expanding with heat and contract with cold
And the partial structurtes of silica gel filler 5 is caused to be destroyed and influence leakproofness, the sealing mechanism further includes for wrapping up riveting
Connect the heat-shrink tube 4 of position.
Further include being arranged in the cooling fin 9 for being fixed on the outside of aluminum pipe 7 in such a way that silica gel is viscous.
In the utility model, the silica gel filler 5, heat-shrink tube 4 and rubber stopper 8 be can heat safe material,
Meet environmentally friendly RoHS authentication requestings material.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (8)
1. a kind of PTC electric heater with sealing structure, it is characterised in that：It is described including centrally located heating device
Heating device includes the PTC heating elements being socketed successively from inside to outside（1）, electrode slice（2）, insulating trip（3）And aluminum pipe（7）, institute
The PTC heating elements stated（1）Pass through electrode slice and conducting wire（6）It is connected, the PTC heating elements（1）, electrode slice, insulating trip
And aluminum pipe（7）Length be in stepped raising from inside to outside；
In aluminum pipe（7）With PTC heating elements（1）Between gap location be provided with sealing mechanism, the sealing mechanism includes silicon
Glue filler（5）And rubber stopper（8）, wherein the rubber stopper（8）Positioned at aluminum pipe（7）Upper end port at, the silica gel
Filler（5）Positioned at PTC heating elements（1）With rubber stopper（8）Between gap in；
It further include the conducting wire being connected with heating device（6）, the conducting wire（6）Through filler and rubber stopper（8）.
2. a kind of PTC electric heater with sealing structure according to claim 1, it is characterised in that：The rubber
Plug（8）Include the bullet being sequentially arranged from bottom to up including three-decker（811）, with aluminum pipe（7）The matched sealing of internal diameter
Body（812）With the positioning body positioned at outside（813）；In the rubber stopper（8）Centre set there are two perforative wire guide
（82）.
3. a kind of PTC electric heater with sealing structure according to claim 2, it is characterised in that：The sealing
Body（812）Height be equal to insulating trip（3）To aluminum pipe（7）The distance of nozzle end, the bullet（811）Height be less than
PTC electrical heating elements（1）To insulating trip（3）The distance of end.
4. a kind of PTC electric heater with sealing structure according to claim 2, it is characterised in that：The conducting wire
Hole（82）Shape include the round estrade positioned at lower end and cylinder positioned at upper end, the internal diameter of the cylinder, which is slightly less than, leads
Line（6）Outer diameter.
5. a kind of PTC electric heater with sealing structure according to claim 1, it is characterised in that：The conducting wire
（6）Pass through riveting method and electrode slice（2）It is connected.
6. a kind of PTC electric heater with sealing structure according to claim 5, it is characterised in that：The sealing
Mechanism further includes the heat-shrink tube for wrapping up riveting location（4）.
7. according to a kind of PTC electric heater with sealing structure of claim 1-6 any one of them, it is characterised in that：Institute
The silica gel filler stated（5）It is filled in all gaps of heater.
8. a kind of PTC electric heater with sealing structure according to claim 1, it is characterised in that：It further include heat dissipation
Piece（9）, the cooling fin（9）It is arranged in aluminum pipe（7）Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820255324.3U CN208029122U (en) | 2018-02-13 | 2018-02-13 | A kind of PTC electric heater with sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820255324.3U CN208029122U (en) | 2018-02-13 | 2018-02-13 | A kind of PTC electric heater with sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208029122U true CN208029122U (en) | 2018-10-30 |
Family
ID=63904991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820255324.3U Active CN208029122U (en) | 2018-02-13 | 2018-02-13 | A kind of PTC electric heater with sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208029122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112118643A (en) * | 2019-06-19 | 2020-12-22 | 魏旭东 | Quick-cooling heater for special environment |
-
2018
- 2018-02-13 CN CN201820255324.3U patent/CN208029122U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112118643A (en) * | 2019-06-19 | 2020-12-22 | 魏旭东 | Quick-cooling heater for special environment |
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