PTC heating device

Abstract

The utility model relates to the technical field of heaters, and discloses a PTC heating device which comprises a shell, a boss is arranged at the position, close to the top, in the shell, a partition plate is in lap joint with the boss in the shell and fixedly connected with the boss through bolts, a plurality of kidney-shaped through holes are formed in the partition plate, and the partition plate is in lap joint with the boss through bolts. A plurality of kidney-shaped through holes are formed in the shell, a heating cavity is fixedly connected to each kidney-shaped through hole, the ends, connected with the kidney-shaped through holes, of the heating cavities are open, a plurality of grooves matched with the heating cavities are formed in the shell, and sealing rings made of high-temperature-resistant elastic materials are arranged on the outermost sides, close to the bottom of the shell, of the heating cavities. The aluminum base is simple in structure and high in operability, except for the heating part, other materials are all made of light materials, and the overall weight is greatly reduced compared with that of a traditional aluminum base manufactured in a die-casting mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heater, especially relates to a PTC heating device. BACKGROUND

[0002] The conventional PTC heating device adopts an aluminum base die casting for the shell, the PTC heating element is assembled in the die casting, and the PTC heating element is manufactured as a separate component, and the manufacturing of this type of heating device requires a large amount of aluminum and consumes a lot of resources. SUMMARY

[0003] In order to solve the problems of bulky aluminum base shell structure and large amount of aluminum material in the prior art, the utility model provides a PTC heating device.

[0004] The utility model discloses a shell is through the following technical scheme realizes: including the shell, the shell inside near the top position is provided with the boss, and the partition board is overlapped on the boss in the shell interior, and is connected with the boss through bolt fixed connection, be equipped with a plurality of waist type through -hole on the partition board, and every waist type through -hole place all are fixedly connected with a heating cavity, the heating cavity is connected with waist type through -hole one end opening.

[0005] As a further optimization, the shell is made of high-temperature-resistant plastic material.

[0006] As a further optimization, the shell is provided with a plurality of grooves matched with the heating cavities.

[0007] As a further optimization, the grooves are made of high-temperature-resistant material.

[0008] As a further optimization, the grooves and the shell are integrally formed.

[0009] As a further optimization, the grooves are heat-resistant spacers arranged between the shell and the heating cavities.

[0010] As a further optimization, the outermost side of the heating cavities close to the bottom of the shell is provided with a sealing ring made of high-temperature-resistant elastic material.

[0011] As a further optimization, the connection between the partition plate and the heating cavities is provided with a welding groove, and the heating cavities and the partition plate are welded together.

[0012] As a further optimization, the partition plate is made of lightweight material, and the waist type through -hole on the partition plate is fixedly connected with metal material.

[0013] As further preferred, the number of waist-shaped through holes on the partition plate is seven, the length-width ratio of the waist-shaped through holes is 20:1; the length and width of the heat generating cavity are smaller than the length and width of the waist-shaped through holes; the wall thickness of the heat generating cavity is 0.6mm; and the interval between the heat generating cavities is greater than the thickness of the heat generating cavities.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The heat generating cavity of the utility model is formed by stamping, easy to process, and has high operability, and the shell part is made of plastic material, so that the overall weight is greatly reduced.

[0016] 2. The utility model is provided with a modular heating structure, which can heat a plurality of PTC heating components at the same time, thereby improving work efficiency.

[0017] 3. The utility model is provided with a modular heating structure, which can heat a plurality of PTC heating components at the same time, thereby improving work efficiency.

[0018] 4. The utility model discloses a novel structure, which inserts the PTC heating component into the heat generating cavity for heating and the bottom shell is made of plastic material, thereby avoiding the demolding problem of the aluminum base manufactured by traditional die casting. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the overall structure of the utility model.

[0020] Figure 2 It is a sectional view of a single heat generating cavity along the width direction of the utility model.

[0021] Figure 3 It is a sectional view of the overall along the length direction of the heat generating cavity of the utility model.

[0022] Figure 4 It is a sectional view of the overall along the width direction of the heat generating cavity of the utility model.

[0023] Figure 5 It is an explosion schematic view of the utility model.

[0024] Indications in the figure:

[0025] 1, shell; 2, separation plate; 3, heat generating cavity; 4, PTC heating component; 5, welding groove; 6, sealing ring. DETAILED DESCRIPTION

[0026] The advantages and characteristics of the utility model will be illustrated and explained by the following non-limiting description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings.

[0027] As Figures 1 to 5As shown, the utility model provides a kind of PTC heating device, including shell 1, to reduce weight, the shell 1 is made of high temperature resistant plastic material.The boss is arranged in the inside of shell 1 near top position, the boss is used to connect partition plate 2.The partition plate 2 is overlapped on the boss in the inside of shell 1, and the partition plate 2 is fixedly connected with the boss by bolt.The partition plate 2 is equipped with several waist type through holes, and each waist type through hole is fixedly connected with a heating cavity 3.The heating cavity 3 is connected with the opening of waist type through hole end, and PTC heating component 4 can be inserted into the inside of heating cavity 3.The heating cavity 3 is preferably made of stamping forming.The shell 1 is equipped with several grooves matched with heating cavity 3, the groove plays certain support and limiting effect to heating cavity 3, and the groove part is made of high temperature resistant material, which can be high temperature resistant plastic material integrated with shell 1, or high temperature resistant spacer pad is arranged between shell 1 and heating cavity 3.

[0028] To prevent the high-temperature liquid in the heating cavity 3 from flowing out of the shell 1 due to damage, a sealing ring 6 is arranged at the outermost side of the heating cavity 3 near the bottom of the shell 1.

[0029] The partition plate 2 body can be made of lightweight materials such as plastic, and the waist type through holes formed therein are fixedly connected with metal materials. The metal material is preferably stamped metal. The connection between the partition plate 2 and the heating cavity 3 is provided with a welding groove 5, and the heating cavity 3 and the partition plate 2 are welded together by brazing or other methods. The heating cavity 3 and the partition plate 2 are connected with a gap, and during the welding process, the solder flows into the gap. After the molten solder cools and solidifies, it is filled in the gap between the heating cavity 3 and the partition plate 2, forming a good seal.

[0030] To maximize heating efficiency in limited space, the number of waist type through holes on the partition plate 2 is seven, and the length-width ratio of the waist type through hole is 20:1. The length-width of the heating cavity 3 is slightly smaller than that of the waist type through hole, and each heating cavity 3 can hold two PTC heating components. The wall thickness of the heating cavity 3 can be less than 0.6 mm.

[0031] To make the heating cavities 3 not affect each other, the spacing between the heating cavities 3 is greater than the thickness of the heating cavities 3.

[0032] In addition to the above embodiments, the utility model can also have other implementation manners, and any technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope required by the utility model.

Claims

1. A PTC heating device comprising a housing (1), characterized in that: The boss is arranged in the shell (1) near the top position, the partition plate (2) is overlapped on the boss in the shell (1), and is fixedly connected with the boss by bolts, a plurality of waist type through holes are formed in the partition plate (2), one heating cavity (3) is fixedly connected at each waist type through hole, and the heating cavity (3) is open at one end connected with the waist type through hole.

2. The PTC heating device according to claim 1, characterized in that: The shell (1) is made of high-temperature-resistant plastic material.

3. The PTC heating device according to claim 1, characterized in that: The shell (1) is internally provided with a plurality of grooves matched with the heating cavities (3).

4. The PTC heating device according to claim 3, characterized in that: The grooves are made of high-temperature-resistant material.

5. The PTC heating device according to claim 4, characterized in that: The grooves and the shell (1) are integrally formed.

6. The PTC heating device according to claim 4, characterized in that: The grooves are heat-resistant spacers arranged between the shell (1) and the heating cavities (3).

7. The PTC heating device according to claim 1, characterized in that: The outermost side of the heating cavity (3) near the bottom of the shell (1) is provided with a sealing ring (6) made of high-temperature-resistant elastic material.

8. The PTC heating device of claim 1, wherein: The connecting part of the partition plate (2) and the heating cavity (3) is provided with a welding groove (5), and the heating cavity (3) is welded with the partition plate (2).

9. The PTC heating device according to claim 8, characterized in that: The partition plate (2) is made of light material, and the metal material is fixedly connected at the waist type through hole formed in the partition plate (2).

10. The PTC heating device according to any one of claims 1 to 9, characterized in that: The number of the waist type through holes in the partition plate (2) is seven, the length-width ratio of the waist type through hole is 20:1, the length-width of the heating cavity (3) is less than that of the waist type through hole, the wall thickness of the heating cavity (3) is 0.6mm, and the interval between the heating cavities (3) is greater than the thickness of the heating cavities (3).

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