CN217825399U

CN217825399U - Heater embedded with PTC heating assembly

Info

Publication number: CN217825399U
Application number: CN202221945986.6U
Authority: CN
Inventors: 莫仰渊
Original assignee: Dongguan Jinling Industrial Co ltd
Current assignee: Dongguan Jinling Industrial Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-15
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a heater embedded with a PTC heating component, which comprises a PTC heating component and a stretching aluminum piece, wherein the PTC heating component comprises a heating body, a first electrode plate and a second electrode plate which are clamped on the upper surface and the lower surface of the heating body, the first electrode plate and the second electrode plate are sleeved with insulating protective film sleeves, the PTC component is fixed in the stretching aluminum piece, and the PTC heating component is directly fixed in the stretching aluminum piece, so that the PTC heating component is attached to the inner wall of the stretching aluminum piece, the heat on the PTC heating component can be directly transmitted to the stretching aluminum piece, and compared with the existing heater, the heater has better heat transfer performance and more stable power; after the PTC heating assembly is placed into the stretching aluminum piece, the PTC heating assembly is directly compressed through pressure, the PTC heating assembly can be firmly fixed in the stretching aluminum piece without adding a heat conduction gasket between the PTC heating assembly and the stretching aluminum piece, the PTC heating assembly is prevented from loosening, and the heat transfer performance between the PTC heating assembly and the stretching aluminum piece can be improved.

Description

Heater embedded with PTC heating assembly

Technical Field

The utility model belongs to the technical field of the heater technique and specifically relates to a heater that has embedded PTC heating element is related to.

Background

The PTC heater is a novel electric heater consisting of a PTC heating assembly, positive and negative electrode plates and a packaging shell, and has the technical advantages of high heat exchange efficiency, safety, reliability, automatic constant temperature, low power consumption, quick temperature rise and the like, so that the PTC heater is one of the most widely applied electric heaters at present. The existing PTC liquid heater is mainly designed into a T-shaped structure and comprises a metal shell and a flange bottom plate vertically installed at one end of the metal shell, wherein an opening communicated with the inside of the metal shell is formed in the flange bottom plate, a PTC heating assembly, a positive electrode and a negative electrode are installed in the metal shell, a thermistor generates heat after the PTC heating assembly is electrified, and liquid is heated through heat conduction of the metal shell. The heat is transferred between the surface of the metal shell and the liquid, the PTC heating assembly continuously dissipates the heat, and the liquid stops working when heated to a certain temperature. In order to improve the heating effect of the conventional PTC heater, the PTC heating assembly is generally fixed in the metal housing through the heat-conducting gasket, so as to prevent the PTC heating assembly from loosening and improve the heating efficiency of the PTC heater, but the heat-conducting gasket affects the heat conductivity between the PTC heating assembly and the metal housing, so that the heating efficiency needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, propose the embedded heater that has PTC heating element, solve the PTC heater among the prior art for improving the effect of generating heat, generally fix PTC heating element in metal casing through the heat conduction gasket to it is not hard up to prevent that PTC heating element is not hard up, improves the heating efficiency of PTC heater, but the heat conduction gasket can influence the heat transmissibility between PTC heating element and the metal casing, therefore the efficiency of generating heat remains the technical problem who improves.

In order to achieve the technical purpose, the technical scheme of the utility model provides a heater embedded with a PTC heating assembly, which comprises the PTC heating assembly and a tensile aluminum piece, wherein the PTC heating assembly comprises a heating body, a first electrode plate and a second electrode plate, the first electrode plate and the second electrode plate are clamped on the upper surface and the lower surface of the heating body, an insulating protective film sleeve is sleeved outside the heating body, the first electrode plate is connected with a first electrode lead, and the second electrode plate is connected with a second electrode lead; the tensile aluminum piece comprises a metal shell and a flange bottom plate vertically installed at one end of the metal shell, a containing cavity is formed in the metal shell, an opening communicated with the containing cavity is formed in the flange bottom plate, the heating body, the first electrode plate, the second electrode plate and the insulating protective film sleeve are integrally placed in the containing cavity, and the pressing and containing cavity is used for realizing fastening connection of parts in the cavity.

Further, the heating element is a PTC ceramic body.

Further, the first electrode plate and the second electrode plate are aluminum electrode plates.

Furthermore, the insulating protective film sleeve is of a bag-shaped structure with an opening at one side and three closed sides, and one ends of the two wires penetrate through the opening of the insulating protective film sleeve and extend out of the insulating film.

Further, the insulating protective film is covered with a polyimide film.

Furthermore, the stretching aluminum piece is made of pure aluminum.

The beneficial effects of the utility model include:

1. through with PTC heating element snap-on in tensile aluminium spare, can make PTC heating element and the laminating of tensile aluminium spare inner wall to can compare current heater, the heat transfer performance is better, and power is more stable with the direct transfer of the heat on the PTC heating element to tensile aluminium spare.

2. After the PTC heating assembly is placed into the stretching aluminum piece, the PTC heating assembly is directly pressed through pressure, a heat conduction gasket does not need to be added between the PTC heating assembly and the stretching aluminum piece, the PTC heating assembly can be firmly fixed in the stretching aluminum piece, the PTC heating assembly is prevented from loosening, and the heat transfer property between the PTC heating assembly and the stretching aluminum piece can be improved.

Drawings

Fig. 1 is a schematic structural view of a heater embedded with a PTC heating element according to an embodiment of the present invention;

fig. 2 is a front view of a heater with a PTC heating element embedded therein according to an embodiment of the present invention;

fig. 3 is an exploded view of a heater with a PTC heating element embedded therein according to an embodiment of the present invention;

in the figure: 1. a PTC heating element; 11. a heating element; 12. a first electrode sheet; 121. a first electrode lead; 13. a second electrode sheet; 131. a second electrode lead; 14. an insulating protective film sleeve; 2. stretching the aluminum piece; 21. a metal housing; 211. an accommodating cavity; 22. a flange base plate;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the utility model provides a heater embedded with a PTC heating assembly, which comprises a PTC heating assembly 1 and a tensile aluminum member 2, wherein the PTC heating assembly 1 comprises a heating element 11, a first electrode plate 12 and a second electrode plate 13 which are clamped on the upper and lower surfaces of the heating element 11, an insulating protective film sleeve 14 is sleeved outside the heating element 11, the first electrode plate 12 and the second electrode plate 13, the first electrode plate 12 is connected with a first electrode lead 121, and the second electrode plate 13 is connected with a second electrode lead 131; the tensile aluminum part 2 comprises a metal shell 21 and a flange bottom plate 22 vertically installed at one end of the metal shell 21, an accommodating cavity 211 is formed in the metal shell 21, an opening communicated with the accommodating cavity is formed in the flange bottom plate 22, the heating body 11, the first electrode plate 12, the second electrode plate 13 and the insulating protective film sleeve 14 are integrally placed in the accommodating cavity 221, and the pressing and accommodating cavity 221 is used for realizing the fastening connection of the inner parts.

The heating element 11 is a PTC ceramic body. The PTC ceramic body has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving heating element. The safety protection device has the outstanding characteristics that the surface can not be reddened under any application condition in the aspect of safety performance, and potential safety hazards such as scalding and fire disasters are avoided.

It should be noted that, the first electrode plate 12 and the second electrode plate 13 are aluminum electrode plates, and the aluminum electrode plates have the advantages of light weight, corrosion resistance, good plasticity and good heat conductivity.

The insulating protective film sleeve 14 is a bag-shaped structure with an opening at one side and closed three sides, and one end of each of the first electrode lead and the second electrode lead penetrates through the opening of the insulating protective film sleeve 14 and extends out of the insulating protective film sleeve 14. This kind of insulating protective film cover 14, simple structure only needs directly put into insulating protective film cover 14 with heat-generating body 11, first electrode slice 12 and second electrode slice 13, can be with heat-generating body 11 and first electrode slice 12 and second electrode slice 13 parcel in insulating protective film cover 14.

The insulating protective film cover 14 is a polyimide film.

The insulating protective film cover 14 is only required to have a certain insulating property to prevent conduction between the PTC heating element 1 and the aluminum member 2, and therefore, it is not limited to the form of a polyimide film, and for example, in other embodiments, the insulating film cover 14 is formed of a silicon nitride film or a silicon oxide film having a certain insulating property to prevent conduction between the PTC heating element 1 and the aluminum member 2.

The tensile aluminum piece 2 is made of pure aluminum. Through the tensile aluminium part 2 that adopts pure aluminium material, make full use of aluminium have matter light, corrosion-resistant, plastic property and thermal conductivity are all good advantages, and tensile aluminium part 2 is better with attached effect after PTC heating element 1 compresses tightly, not only can firmly fix PTC heating element 1 in tensile aluminium part 2, can effectively promote waterproof performance moreover.

The beneficial effects of the utility model include: through with PTC heating element 1 snap-on in tensile aluminium part 2, can make PTC heating element 1 and the laminating of 2 inner walls of tensile aluminium parts to can compare current heater, heat transfer performance is better, and power is more stable with the direct transmission of the heat on the PTC heating element 1 to tensile aluminium part 2. After the PTC heating assembly 1 is placed into the stretching aluminum piece 2, the PTC heating assembly 1 is directly pressed through pressure, a heat conduction gasket does not need to be added between the PTC heating assembly 1 and the stretching aluminum piece 2, the PTC heating assembly 1 can be firmly fixed in the stretching aluminum piece 2, the PTC heating assembly 1 is prevented from loosening, and the heat conductivity between the PTC heating assembly 1 and the stretching aluminum piece 2 can be improved.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides an embedded heater that has PTC heating element, includes PTC heating element (1) and tensile aluminium part (2), its characterized in that: the PTC heating assembly (1) comprises a heating body (11), and a first electrode plate (12) and a second electrode plate (13) which are clamped on the upper surface and the lower surface of the heating body (11), wherein an insulating protective film sleeve (14) is sleeved outside the heating body (11), the first electrode plate (12) and the second electrode plate (13), the first electrode plate (12) is connected with a first electrode lead (121), and the second electrode plate (13) is connected with a second electrode lead (131); tensile aluminium part (2) include metal casing (21) and install flange bottom plate (22) in metal casing (21) one end perpendicularly, be equipped with holding chamber (211) in metal casing (21), be equipped with the opening with the holding chamber intercommunication on flange bottom plate (22), heat-generating body (11), first electrode piece (12), second electrode piece (13) and insulating protective film cover (14) are whole to be put into in holding chamber (211), through the pressfitting intracavity part fastening connection is realized in holding chamber (211).

2. A heater having a PTC heating element embedded therein according to claim 1, wherein the heating element (11) is a PTC ceramic body.

3. A heater having a PTC heating element embedded therein as claimed in claim 1, wherein the first and second electrode sheets (12, 13) are aluminum electrode sheets.

4. A heater embedded with a PTC heating element according to claim 1, wherein the insulating protective film sheath (14) is a bag-shaped structure with one side open and three sides closed, and one end of each of the two wires passes through the opening of the insulating protective film sheath (14) and extends out of the insulating film.

5. A heater having a PTC heating element embedded therein as claimed in claim 1, wherein the insulating protective film sheath (14) is a polyimide film.

6. A heater having a PTC heating element embedded therein as claimed in claim 1, wherein the stretched aluminum member is made of pure aluminum.