CN207720432U

CN207720432U - A kind of small finned ptc heater

Info

Publication number: CN207720432U
Application number: CN201721747732.2U
Authority: CN
Inventors: 贾小晶
Original assignee: Suzhou Xinye Electronics Co Ltd
Current assignee: Suzhou Xinye Electronics Co Ltd
Priority date: 2017-12-14
Filing date: 2017-12-14
Publication date: 2018-08-10
Anticipated expiration: 2027-12-14

Abstract

The utility model provides a kind of small finned ptc heater, include the heater body for strip of growing up, the outer surface of heater body is equipped with multiple radiating fins, the length direction of radiating fin is parallel with heater body length direction, it is equipped with cavity among the heater body, PTC heating elements are provided in the cavity.Compared to the prior art, radiating fin increases heat dissipation area to the utility model, and heat energy Quick uniform is transmitted to heat demand space, and the power of PTC heating elements is not fully exerted；This heater shape is small, thermal diffusivity is good, the pipeline-like application scenario in especially suitable small space.

Description

A kind of small finned ptc heater

Technical field

The utility model is related to a kind of heaters, and in particular to a kind of small finned ptc heater.

Background technology

For ptc heater using PTC ceramics as core heater element, PTC ceramics has positive temperature coefficient thermal sensitive effect, when After heater heat distributes, PTC ceramics temperature declines, and resistance reduces rapidly, and electric current increases, and improves calorific value.With heating wire, Electrothermal tube, Far-infrared quartz heater are compared, can be temperature automatically controlled, the flames of anger wide using voltage range, securely and reliably, the service life It is long.

Ptc heater fills in aluminum pipe after generally using insulating paper that PTC element and conductive electrode film are wrapped up currently on the market Interior, such heater can only generally make square structure, and heat dissipation effect is bad, and small pipeline or similar small space application are led Domain is poor for applicability, generally requires to increase cooling fan, cannot meet the installation dimension requirement of client.

Utility model content

In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a kind of small finned PTC heating Device.

In order to achieve the above objectives, technical solution adopted by the utility model to solve its technical problems is：It is a kind of small finned Ptc heater, includes the heater body of growth strip, and the outer surface of heater body is equipped with multiple radiating fins, radiating fin The length direction of piece is parallel with heater body length direction, and cavity is equipped among the heater body, is set in the cavity It is equipped with PTC heating elements.

Compared to the prior art, radiating fin increases heat dissipation area to the utility model, and heat energy Quick uniform is transmitted to The power in heat demand space, PTC heating elements is not fully exerted；This heater shape is small, thermal diffusivity is good, especially suitable small The pipeline-like application scenario in space.

Further, corner angle are arc transition angle at the top of the radiating fin.

Using the above preferred scheme, prevent radiating fin from damaging mounting surface.

Further, at the top of the radiating fin it is arc surface.

Using the above preferred scheme, the friction for reducing radiating fin and mounting surface, is more convenient for installing.

Further, the serrated face that height is less than radiating fin is additionally provided between adjacent heat radiation fin.

Using the above preferred scheme, radiating surface, improving heat radiation efficiency are further increased.

Further, the aluminum design part that the heater body, radiating fin and cavity are integrally formed.

Using the above preferred scheme, integral structure can greatly promote heat transfer property.

Further, the PTC heating elements are pressed together in cavity, are fitted with cavity inner wall.

Further, the PTC heating elements include PTC ceramic element, metal electrode film, insulating materials, the insulation Material is Kapton, aluminum oxide substrate or heat-conducting silica gel sheet, and the wrapped with insulation is in PTC ceramic element and gold Belong to electrode slice periphery.

Further, end of the metal electrode film on the outside of heater body is equipped with connection jaws, and the connection jaws are The thin cylinder-like structure of curling.

Using the above preferred scheme, PTC heating elements and the conjugation of heater body are improved, conductivity of heat is improved Can, connection jaws facilitate the connection of PTC heating elements and power supply, promote installation convenience.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other drawings may also be obtained based on these drawings.

Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model；

Fig. 2 is the structural schematic diagram of the utility model another embodiment；

Fig. 3 is the structural schematic diagram of the utility model another embodiment；

Fig. 4 is the structural schematic diagram of the utility model another embodiment；

Fig. 5 is the structural schematic diagram of the utility model another embodiment.

The title of number and the corresponding component represented by letter in figure：

1- heater bodies；11- radiating fins；111- arc transitions angle；112- arc surfaces；12- cavitys；13- serrated faces； 2-PTC heating elements；21-PTC ceramic components；22- metal electrode films；221- connection jaws；23- insulating materials.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

As shown in Figs. 1-3, a kind of small finned ptc heater includes the heater body 1 of growth strip, heater body 1 Outer surface be equipped with multiple radiating fins 11, the length direction of radiating fin 11 is parallel with 1 length direction of heater body, heat It is equipped with cavity 12 among device ontology 1, PTC heating elements 2 are provided in cavity 12.

It is using the advantageous effect of above-mentioned technical proposal：Radiating fin 11 increases heat dissipation area, heat energy Quick uniform It is transmitted to heat demand space, the power of PTC heating elements 2 is not fully exerted；This heater shape is small, thermal diffusivity is good, especially It is applicable in the pipeline-like application scenario in small space.

As shown in figure 4, in other embodiments of the utility model, 11 top corner angle of radiating fin are arc transition Angle 111.It is using the advantageous effect of above-mentioned technical proposal：Prevent radiating fin 11 from damaging mounting surface.

As shown in figure 5, in other embodiments of the utility model, 11 top of radiating fin is arc surface 112.It adopts It is with the advantageous effect of above-mentioned technical proposal：The friction for reducing radiating fin and mounting surface, is more convenient for installing.

As shown in figure 4, in other embodiments of the utility model, height is additionally provided between adjacent heat radiation fin 11 Less than the serrated face 112 of radiating fin 11.It is using the advantageous effect of above-mentioned technical proposal：Radiating surface is further increased, is promoted Radiating efficiency.

As shown in figure 3, in other embodiments of the utility model, heater body 1, radiating fin 11 and cavity The 12 aluminum design parts being integrally formed.It is using the advantageous effect of above-mentioned technical proposal：Integral structure can greatly promote biography Hot property.

As shown in Figs. 1-2, in other embodiments of the utility model, PTC heating elements 2 are pressed together on cavity 12 It is interior, it fits with 12 inner wall of cavity；PTC heating elements 2 include PTC ceramic element 21, metal electrode film 22, insulating materials 23, Insulating materials 23 is Kapton, aluminum oxide substrate or heat-conducting silica gel sheet, and insulating materials 23 is wrapped in PTC ceramic element 21 and 22 periphery of metal electrode film；End of the metal electrode film 22 on the outside of heater body is equipped with connection jaws 221, connection jaws 221 be the thin cylinder-like structure of curling.Advantageous effect using above-mentioned technical proposal is to improve PTC heating elements 2 and heating The conjugation of device ontology 1 improves heat transfer property, and connection jaws 221 facilitate the connection of PTC heating elements 2 and power supply, promote installation Convenience.

Above-described embodiment is only to illustrate the technical concepts and features of the utility model, and its object is to allow the common skill in this field Art personnel can understand the content of the utility model and be implemented, and can not limit the scope of protection of the utility model with this, It is all according to equivalent change or modification made by the spirit of the present invention essence, should all cover in the scope of protection of the utility model It is interior.

Claims

1. a kind of small finned ptc heater, which is characterized in that include the heater body of growth strip, heater body it is outer Surface is equipped with multiple radiating fins, and the length direction of radiating fin is parallel with heater body length direction, the heater sheet It is equipped with cavity among body, PTC heating elements are provided in the cavity.

2. small finned ptc heater according to claim 1, which is characterized in that corner angle are circle at the top of the radiating fin Arc transition angle.

3. small finned ptc heater according to claim 1, which is characterized in that be arc surface at the top of the radiating fin.

4. according to any small finned ptc heaters of claim 1-3, which is characterized in that between adjacent heat radiation fin also It is less than the serrated face of radiating fin equipped with height.

5. small finned ptc heater according to claim 1, which is characterized in that the heater body, radiating fin and The aluminum design part that cavity is integrally formed.

6. small finned ptc heater according to claim 1, which is characterized in that the PTC heating elements are pressed together on cavity It is interior, it fits with cavity inner wall.

7. small finned ptc heater according to claim 6, which is characterized in that the PTC heating elements include PTC potteries Porcelain element, metal electrode film, insulating materials, the insulating materials are Kapton, aluminum oxide substrate or heat conductive silica gel Piece, the wrapped with insulation is in PTC ceramic element and metal electrode film periphery.

8. small finned ptc heater according to claim 7, which is characterized in that the metal electrode film is in heater sheet The end of external side is equipped with connection jaws, and the connection jaws are the thin cylinder-like structure of curling.