CN211041420U

CN211041420U - PTC heating module and water heater

Info

Publication number: CN211041420U
Application number: CN201922027242.0U
Authority: CN
Inventors: 朱兴文
Original assignee: Jiangsu Jun Porcelain Technology Co ltd
Current assignee: Jiangsu Jun Porcelain Technology Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-17
Anticipated expiration: 2029-11-21

Abstract

The utility model provides a PTC heating module and water heater, PTC heating module, including insulating support, PTC ceramic element, first electrode piece, second electrode piece, insulating film, first apron and second apron, be equipped with in the middle of the insulating support and be used for holding PTC ceramic element's well kenozooecium, two electrode pieces paste respectively and lean on PTC ceramic element's upper and lower surface, the insulating film cover in the lower surface of first electrode piece upper surface and second electrode piece, two laps paste respectively and lean on the surface at upper portion insulating film and lower part insulating film. The utility model discloses PTC heating module adopts insulating support as the carrier frame, and direct assembly contact between electrode slice, PTC ceramic element, insulating film, the apron need not the coating heat conduction glue and loaded down with trivial details toasts and presses the pipe technology, and simple process assembles the convenience, is favorable to batch volume production, promotes production efficiency.

Description

PTC heating module and water heater

Technical Field

The utility model relates to a PTC heater technical field, concretely relates to PTC heating module and water heater.

Background

The PTC heater has the advantages of automatic temperature control, wide application voltage range, no open fire, safety, reliability, long service life and the like. With the development of electric vehicles, PTC heaters have become the main way of air conditioning and battery heating. In patent document CN206380110U, a PTC water heater is disclosed, which is formed by coating an adhesive on an electrode sheet, baking and shaping the electrode sheet and a PTC heating sheet, wrapping an insulating paper, inserting the wrapped sheet into an aluminum tube, rolling or flat pressing the aluminum tube to form a PTC heating tube, coating an adhesive on the PTC heating tube, inserting the tube between micro-channel flat tubes in a water tank, and baking at high temperature. The manufacturing process is more complicated, the cost is higher, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a PTC heating module and a water heater.

In order to achieve the above object, the technical solution of the present invention is: the utility model provides a PTC heating module, includes insulating support, PTC ceramic element, first electrode piece, second electrode piece, insulating film, first apron and second apron, be equipped with in the middle of the insulating support and be used for holding PTC ceramic element's well kenozooecium, first electrode piece pastes and leans on PTC ceramic element's upper surface, second electrode piece pastes and leans on PTC ceramic element's lower surface, the insulating film cover in the lower surface of first electrode piece upper surface and second electrode piece, first apron pastes and leans on the upper surface of first electrode piece top insulating film, second apron pastes and leans on the lower surface of second electrode piece below insulating film.

The utility model discloses PTC heating module adopts insulating support as the carrier frame, and direct assembly contact between electrode slice, PTC ceramic element, insulating film, the apron need not the coating heat conduction glue and loaded down with trivial details toasts and presses the pipe technology, and simple process assembles the convenience, is favorable to batch volume production, promotes production efficiency.

Furthermore, the upper surface of the insulating support is provided with a first electrode mounting surface which is concave and matched with the first electrode plate in shape at the periphery of the hollow part, the lower surface of the insulating support is provided with a second electrode mounting surface which is concave and matched with the second electrode plate in shape at the periphery of the hollow part, and the distance between the first electrode mounting surface and the second electrode mounting surface is slightly smaller than the thickness of the PTC ceramic element.

By adopting the preferable scheme, the first electrode plate and the second electrode plate can be ensured to be in good contact with the PTC ceramic element, and good heat transfer performance is ensured.

Furthermore, the first electrode plate and the second electrode plate are respectively provided with a clamping jaw, and the insulating support is provided with a groove body matched with the clamping jaw.

By adopting the preferred scheme, the two electrode plates can be conveniently positioned and installed, the claw forms an acute angle with the surface of the electrode plate where the claw is located, when the claw is clamped with the upper groove body of the insulating support, interference type clamping is generated, assembly is convenient, and meanwhile, when external extrusion force is applied between the first electrode plate and the second electrode plate, the claw cannot block the first electrode plate and the second electrode plate from being tightly pressed with the PTC ceramic element.

Furthermore, the first cover plate and the second cover plate are respectively provided with a positioning hole, the insulating support is provided with a positioning column, and the positioning holes penetrate through the positioning column.

By adopting the preferable scheme, the two cover plates are convenient to position and install.

Further, the insulating film is a silica gel film or a polyimide film.

Further, the wedge-shaped block is attached to the surface of the first cover plate or the surface of the second cover plate.

Furthermore, the first electrode plate, the second electrode plate, the first cover plate, the second cover plate and the wedge-shaped block are made of high-heat-conductivity metal materials.

Further, the included angle between the upper surface and the lower surface of the wedge-shaped block is 1-5 degrees.

Adopt above-mentioned preferred scheme, can coincide the structure of PTC heating module embedding cell body, improve the contact degree of PTC heating module and embedding cell body inner wall, promote heat transfer performance.

Furthermore, a hole groove is formed in the end, with the larger thickness, of the wedge-shaped block.

By adopting the preferable scheme, the wedge-shaped block can be conveniently taken out.

A water heater comprises a cast aluminum water tank, wherein at least one PTC heating module is inserted into the cast aluminum water tank.

The assembled PTC heating module is directly inserted into the flat groove of the cast aluminum water tank and is wedged tightly through the wedge-shaped block, the manufacturing process is simple, and the production efficiency is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a PTC heating module according to the present invention;

fig. 2 is an exploded view of the PTC heating module;

FIG. 3 is a schematic front view of the insulating support;

FIG. 4 is a schematic view of a rear side structure of the insulating support;

FIG. 5 is a schematic structural view of another embodiment of a PTC heating module;

FIG. 6 is a schematic view of a partial structure of a water heater;

FIG. 7 is a schematic view of the structure of the back surface of the cast aluminum water tank.

Names of corresponding parts represented by numerals and letters in the drawings:

100-PTC heating module; 110-an insulating support; 111-a first electrode mounting face; 112-a second electrode mounting face; 113-a trough body; 114-a locating post; 120-PTC ceramic elements; 130-a first electrode sheet; 131-jaws; 140-a second electrode sheet; 150-an insulating film; 160-a first cover plate; 161-positioning holes; 170-a second cover plate; 180-wedge-shaped block; 181-hole groove; 200-cast aluminum water tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, a PTC heating module includes an insulating support 110, a PTC ceramic element 120, a first electrode sheet 130, a second electrode sheet 140, an insulating film 150, a first cover plate 160 and a second cover plate 170, wherein a hollow portion for accommodating the PTC ceramic element 120 is disposed in the middle of the insulating support 110, the first electrode sheet 130 is attached to the upper surface of the PTC ceramic element 120, the second electrode sheet 140 is attached to the lower surface of the PTC ceramic element 120, the insulating film 150 covers the upper surface of the first electrode sheet 130 and the lower surface of the second electrode sheet 140, the first cover plate 160 is attached to the upper surface of the insulating film 150 above the first electrode sheet 130, and the second cover plate 170 is attached to the lower surface of the insulating film 150 below the second electrode sheet 140.

The beneficial effect of adopting above-mentioned technical scheme is: adopt insulating support 110 as the carrier frame, from top to bottom in proper order fold the direct assembly contact between first apron 160, insulating film 150, first electrode piece 130, PTC ceramic element 120, second electrode piece 140, insulating film 150, the second apron 170 that leans on, need not coating heat-conducting glue and loaded down with trivial details stoving and press the pipe technology, simple process, the equipment is convenient, is favorable to batch volume production, promotes production efficiency.

As shown in fig. 3 and 4, in another embodiment of the present invention, the upper surface of the insulating support 110 is provided with a first electrode mounting surface 111 which is concave and matches with the shape of the first electrode sheet 130 around the hollow portion, the lower surface of the insulating support 110 is provided with a second electrode mounting surface 112 which is concave and matches with the shape of the second electrode sheet 140 around the hollow portion, and the distance between the first electrode mounting surface 111 and the second electrode mounting surface 112 is slightly smaller than the thickness of the PTC ceramic element 120. The beneficial effect of adopting above-mentioned technical scheme is: the first electrode plate and the second electrode plate can be ensured to be in good contact with the PTC ceramic element, and good heat transfer performance is ensured.

As shown in fig. 2 to 4, in other embodiments of the present invention, the first electrode plate 130 and the second electrode plate 140 are respectively provided with a claw 131, and the insulating support 110 is provided with a groove 113 matching with the claw 131. The beneficial effect of adopting above-mentioned technical scheme is: the two electrode plates are convenient to position and install.

As shown in fig. 2 to 4, in other embodiments of the present invention, the first cover plate 160 and the second cover plate 170 are respectively provided with positioning holes 161, the insulating support 110 is provided with positioning pillars 114, and the positioning holes 161 are disposed through the positioning pillars 114. The beneficial effect of adopting above-mentioned technical scheme is: the two cover plates are convenient to position and install.

In other embodiments of the present invention, the insulating film 150 is a silica gel film. The silica gel film has good thermal conductivity.

In other embodiments of the present invention, the insulating film 150 is a polyimide film.

In other embodiments of the present invention, as shown in fig. 5, the wedge block 180 is further included, and the wedge block 180 abuts against the surface of the first cover plate or the second cover plate. The wedge block 180 has an included angle of 1-5 between the upper and lower surfaces. The beneficial effect of adopting above-mentioned technical scheme is: the structure that PTC heating module imbeds the cell body can coincide improves the contact degree of PTC heating module and embedding cell body inner wall, promotes heat transfer performance.

In other embodiments of the present invention, as shown in fig. 5, the end of wedge block 180 having a greater thickness is provided with a slot 181. The beneficial effect of adopting above-mentioned technical scheme is: the wedge-shaped block is convenient to take out.

In other embodiments of the present invention, the first electrode plate, the second electrode plate, the first cover plate, the second cover plate and the wedge block are made of a high thermal conductive metal material, such as aluminum or copper.

As shown in fig. 6 and 7, the water heater includes a cast aluminum water tank 200, and the assembled PTC heating module 100 is directly inserted into a flat tank of the cast aluminum water tank 200 and wedged by the wedge block 180, and has a simple manufacturing process and high production efficiency.

The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a PTC heating module, its characterized in that includes insulating support, PTC ceramic element, first electrode piece, second electrode piece, insulating film, first apron and second apron, be equipped with in the middle of the insulating support and be used for holding PTC ceramic element's well kenozooecium, first electrode piece pastes and leans on PTC ceramic element's upper surface, the second electrode piece pastes and leans on PTC ceramic element's lower surface, the insulating film cover in the lower surface of first electrode piece upper surface and second electrode piece, first apron pastes and leans on the upper surface of first electrode piece top insulating film, the second apron pastes and leans on the lower surface of second electrode piece below insulating film.

2. The PTC heating module according to claim 1, wherein the upper surface of the insulating support is provided with a first electrode mounting surface which is concave and matches with the shape of the first electrode sheet around the hollow portion, the lower surface of the insulating support is provided with a second electrode mounting surface which is concave and matches with the shape of the second electrode sheet around the hollow portion, and the distance between the first electrode mounting surface and the second electrode mounting surface is slightly smaller than the thickness of the PTC ceramic element.

3. The PTC heating module according to claim 2, wherein the first electrode plate and the second electrode plate are respectively provided with a jaw, and the insulating bracket is provided with a groove body matched with the jaws.

4. The PTC heating module according to claim 1, wherein the first cover plate and the second cover plate are respectively provided with positioning holes, and the insulating support is provided with positioning posts, and the positioning holes are arranged on the positioning posts.

5. The PTC heating module according to claim 1, wherein the insulating film is a silicone film or a polyimide film.

6. A PTC heating module according to any of claims 1-5, further comprising a wedge block, wherein the wedge block abuts against the surface of the first cover plate or the second cover plate.

7. The PTC heating module according to claim 6, wherein the wedge block includes an upper surface and a lower surface at an angle of 1-5 °.

8. The PTC heating module according to claim 6, wherein the end of the wedge block with the larger thickness is provided with a hole groove.

9. The PTC heating module according to claim 6, wherein the first electrode sheet, the second electrode sheet, the first cover plate, the second cover plate and the wedge block are made of a high thermal conductivity metal material.

10. A water heater comprising a cast aluminum water tank having at least one PTC heating module according to any one of claims 6-9 inserted therein.