CN208724227U

CN208724227U - The heating mechanism of ptc heater

Info

Publication number: CN208724227U
Application number: CN201821124632.9U
Authority: CN
Inventors: 张晓彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-13
Filing date: 2018-07-13
Publication date: 2019-04-09
Anticipated expiration: 2028-07-13

Abstract

The utility model discloses a kind of heating mechanism of ptc heater, heating component including an aluminum pipe and in aluminum pipe, the heating component include two electrode slices being oppositely arranged, several PTC heating sheets between two electrode slices and two aluminum oxide substrates being located on the outside of two electrode slices.The utility model is using the higher aluminum oxide substrate of thermal coefficient as insulating materials, using whole aluminum oxide substrate, both thermal resistance is reduced, be conducive to distributing for PTC heating sheet heat, when power can be substantially improved, and saving in the prior art using the insulation of muti-piece insulating substrate, electrode slice need to keep away that an insulating substrate gap done keeps away bit architecture, and more PTC heating sheets can be placed under same length, unit area power can be done it is higher, so as to improve and improve heating effect.

Description

The heating mechanism of ptc heater

Technical field

The utility model relates to the technical field of PTC heating device more particularly to a kind of heating mechanisms of ptc heater.

Background technique

Ptc heater product now has been widely used for taking for field of household appliances due to its special ptc characteristics Warm, some is applied to air-conditioning auxiliary heating, warm-air drier, super bath etc.；Some is applied to the defrosting of conventional fuel oil automobile, heating etc.； Some is applied to the interior heating of new-energy automobile, battery heating etc..In high-power heating art, ptc heater applies model It encloses and is also constantly extending.PTC heater using PTC ceramics as core heater element, and traditional heating wire, electrothermal tube, far Infrared quartz heater is compared, and has temperature automatically controlled, and wide using voltage range, and the flames of anger, securely and reliably, the service life is long etc. excellent Gesture.Such ptc heater generally uses aluminium pipe structure, and aluminum pipe is viscous with silica gel between the soldering or gluing aluminum strip of heat transmission It connects, finned cooling fin can also be mechanically connected outside aluminum pipe.

Universal PTC air-heating heater or water-warming heater mostly use greatly PTC ceramics to send out as core currently on the market Thermal element is first fabricated to PTC heating tube, in particular to refers to insulating paper (Kapton) PTC ceramic element and lead It fills in dedicated aluminum pipe after metal electrode film used in electricity (two electrode surfaces of electrode slice abutting PTC ceramics) package, then presses Tight aluminum pipe, so that PTC element and electrode slice, insulating paper is bonded closely with aluminum pipe, thermal resistance is reduced, conducive to the hair of PTC power It waves, wherein insulating paper plays insulation and thermally conductive effect.It is used for air-heating heater, then in ptc heater aluminum pipe two sides Heat conductive silica gel is bonded heat transmission and is brazed aluminum strip, can achieve the effect sufficiently to radiate after solidification, by means of core heater element Special ptc characteristics are conducive to the performance of heater power, for water-warming heater, PTC heating tube is tight It is attached on water channel, the heat transfer that PTC ceramic element is generated is into the water being heated.

For ptc heater, either air-heating heater or water-warming heater, it is necessary to PTC heating tube is first made, The production of heating tube is key, and the heat that PTC ceramic element generates must be passed by heating tube.In PTC heating tube Insulating paper plays insulation and thermally conductive effect, but since the thermal coefficient of insulating paper is relatively low, thermal resistance is bigger than normal, so being added with such The power for the heater that heat pipe is fabricated to is difficult to give full play to, to influence heating effect.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of PTC that can be improved and improve heating effect and adds The heating mechanism of hot device.

In order to achieve the above objectives, the technical solution of the utility model is as follows:

The heating mechanism of ptc heater, the heating component including an aluminum pipe and in aluminum pipe, which includes phase To two electrode slices of setting, several PTC heating sheets between two electrode slices and it is located at outside two electrode slices Two aluminum oxide substrates of side.

The present embodiment using the higher aluminum oxide substrate of thermal coefficient as insulating materials, using whole aluminum oxide substrate, Both thermal resistance is reduced, distributing for PTC heating sheet heat is conducive to, power can be substantially improved, and save and use in the prior art When muti-piece insulating substrate insulate, electrode slice need to keep away that an insulating substrate gap done keeps away bit architecture, can place under same length More PTC heating sheets, unit area power can be done it is higher, so as to improve and improve heating effect.

Further, the heating component further includes a posting, and posting is several between described two electrode slices A PTC heating sheet is arranged side by side in posting.

Further, the direction extended along on the posting is equipped at intervals with several location holes, in each location hole Several PTC heating sheets are arranged side by side.

Further, the direction extended along on the posting is set side by side there are two location hole, in each location hole point It Bing Paishezhi not three PTC heating sheets.

Further, the top and bottom of the posting two sides extend along direction respectively and protrude that form a bar shaped convex Edge, described two electrode slices are respectively fitting between two bar shaped flanges of posting two sides.

Further, the posting is using framework made of isolation material.

Further, the aluminum oxide substrate with a thickness of 0.1 to 5mm.

Detailed description of the invention

Fig. 1 is the structure chart of the heating mechanism of ptc heater；

Fig. 2 is the exploded view of Fig. 1；

Fig. 3 is the positioning block diagram of the heating mechanism of the utility model ptc heater.

Wherein: 11: aluminum pipe, 12:PTC heating sheet, 13: posting, 14: electrode slice, 15: aluminum oxide substrate, 16: positioning Hole, 17: bar shaped flange.

Specific embodiment

Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described Embodiment is only the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.

The heating mechanism of ptc heater, as shown in Figure 1 to Figure 3, the heating group including an aluminum pipe 11 and in aluminum pipe 11 Part, the heating component include two electrode slices 14 being oppositely arranged, several PTC heating sheets between two electrode slices 14 12 and it is located at two aluminum oxide substrates 15 in the outside of two electrode slices 14.

To make the aluminum oxide substrate of high thermal conductivity coefficient to replace insulating paper, a kind of method is using shorter aluminum oxide substrate It is spliced into insulating layer, but due to having the gap between substrate, (between metal electrode film and aluminum pipe) can generate and climb electricity, so aoxidizing One layer of insulating paper must also be wrapped up outside aluminium-base plate insulating layer, but this materially increases thermal resistance；Another method makes It is spliced into insulating layer with shorter aluminum oxide substrate, does not wrap up insulating paper, but due to having the gap between substrate, (metal electrode film Between aluminum pipe) it can generate and climb electricity, a metal electrode chip architecture is kept away using special band, removal insulating paper is avoided to lead to substrate Between gap lead to the problem of that creepage distance is too small, but keep away bit architecture and occupy the inner space added and make that structure is complicated.

For the technical effect for advanced optimizing the utility model, in other embodiment, on the basis of above content On, as shown in Figure 1 to Figure 3, the heating component further includes a posting 13, posting 13 be located at described two electrode slices 14 it Between, several PTC heating sheets 12 are arranged side by side in posting 13.

The present embodiment, can be to preferably carrying out limitation fixation to PTC heating sheet by setting posting, while also can be right PTC heating sheet is protected, and stable structure is reliable.

For the technical effect for advanced optimizing the utility model, in other embodiment, on the basis of above content On, as shown in Figure 1 to Figure 3, the direction extended along on the posting 13 is equipped at intervals with several location holes 16, each positioning Several PTC heating sheets 12 are arranged side by side in hole 16.

The present embodiment is arranged in location hole by PTC heating sheet, and structure is reliable, stablizes.

The present embodiment can promote heating effect by the way that PTC heating sheet is arranged in each location hole.

For the technical effect for advanced optimizing the utility model, in other embodiment, on the basis of above content On, as shown in Figure 1 to Figure 3, the direction extended along on the posting 13 is set side by side there are two location hole 16, each location hole Three PTC heating sheets 12 are arranged side by side in 16 respectively.

The present embodiment passes through the quantity of rationally setting location hole and PTC heating sheet, more preferably promotion heating effect.

For the technical effect for advanced optimizing the utility model, in other embodiment, on the basis of above content On, as shown in Figure 1 to Figure 3, the top and bottom of 13 two sides of posting extend along direction respectively and protrude to form a bar shaped Flange 17, described two electrode slices 14 are respectively fitting between two bar shaped flanges 17 of 13 two sides of posting.

The present embodiment electrode slice is arranged between two bar shaped flanges, plays a certain protective role.

For the technical effect for advanced optimizing the utility model, in other embodiment, on the basis of above content On, as shown in Figure 1 to Figure 3, the posting 13 is using framework made of isolation material, and preferred posting can be silica gel Frame can also use the insulation frame of plastic material, naturally it is also possible to use other modes, specifically without limitation.

The present embodiment is arranged by posting, can protect to PTC heating sheet, also PTC heating sheet can be carried out Limitation is fixed.

For the technical effect for advanced optimizing the utility model, in other embodiment, on the basis of above content On, as shown in Figure 1 to Figure 3, the aluminum oxide substrate 15 with a thickness of 0.1 to 5mm, specifically, can be 0.1,0.2,0.5, 1,2,3,4,5mm, it can specifically be selected according to production requirement, without limitation.

The present embodiment can either avoid aluminum oxide substrate is blocked up so that volume increases by the selection to alumina base plate thickness Greatly, while again good heat dissipation effect can be played.

Above-described is only preferred embodiments of the present invention, it is noted that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, various modifications and improvements can be made, these all belong to In the protection scope of the utility model.

Claims

The heating mechanism of 1.PTC heater, which is characterized in that the heating component including an aluminum pipe and in aluminum pipe, the heating Component includes two electrode slices being oppositely arranged, several PTC heating sheets between two electrode slices and is located at two Two aluminum oxide substrates on the outside of a electrode slice.
2. the heating mechanism of ptc heater according to claim 1, which is characterized in that the heating component further includes one Posting, between described two electrode slices, several PTC heating sheets are arranged side by side in posting posting.
3. the heating mechanism of ptc heater according to claim 2, which is characterized in that extended along on the posting Direction be equipped at intervals with several location holes, several PTC heating sheets are arranged side by side in each location hole.
4. the heating mechanism of ptc heater according to claim 3, which is characterized in that extended along on the posting Direction set side by side there are two location hole, three PTC heating sheets are arranged side by side in each location hole respectively.
5. the heating mechanism of ptc heater according to claim 2, which is characterized in that the top of the posting two sides It extends along direction respectively with bottom to protrude to form a bar shaped flange, described two electrode slices are respectively fitting into posting two sides Between two bar shaped flanges.
6. the heating mechanism of ptc heater according to claim 2, which is characterized in that the posting is using insulation Framework made of material.
7. the heating mechanism of ptc heater according to claim 1, which is characterized in that the thickness of the aluminum oxide substrate It is 0.1 to 5mm.