Low-wind-resistance low-noise PTC heater

Abstract

The utility model discloses a low-wind-resistance low-noise PTC heater, which comprises a first heating plate, a second heating plate, a third heating plate and a heater, the second heating plate is arranged below the first heating plate, the third heating plate is arranged below the second heating plate, and the heater is arranged below the third heating plate. Heaters are installed between the first heating plate and the second heating plate and between the second heating plate and the third heating plate, the first heating plate and the second heating plate are of the same structure and are symmetrically distributed, the first heating plate comprises a first main plate, a first steel frame and first corrugated heat conduction wires, and the first main plate is arranged at the top of the first steel frame. According to the utility model, the reinforcing ribs are arranged on the corrugated heat conduction wires, so that the anti-pressure capability of the PCT heater is enhanced, the PCT heater is not easy to deform during production, and the production efficiency is improved; the distance between the corrugated heat conduction wires is 10mm, so that the wind resistance is reduced, and the noise is reduced; and the reinforcing ribs can be arranged to be organ-shaped, so that the wind resistance is further reduced, and the noise is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of heaters, and in particular relates to a low-wind resistance and low-noise PTC heater. Background Art

[0002] A PTC heater is an electric heater that uses a PTC thermistor as a heating element. When the temperature exceeds a certain limit, its resistance value will increase sharply, the current will decrease, and the power will drop, thereby achieving self-limiting temperature and effectively avoiding safety problems caused by overheating. After reaching the set temperature, the power will automatically decrease, maintaining the temperature while saving electricity, and can increase the temperature in a relatively short time. Due to its special material and working principle, it is relatively durable. It is widely used in air conditioners, heaters, dryers, electric vehicles and other fields, providing reliable heating functions for various equipment.

[0003] However, the current PTC heater has a rounded corner corrugation, which has low pressure resistance and is easy to deform during production. The corrugation spacing is dense, resulting in large wind resistance and noise. The maximum spacing can only be 5mm, and any larger spacing will easily cause deformation during production. Utility Model Content

[0004] The purpose of this utility model is to provide a low-windage and low-noise PTC heater, aiming to solve the problems existing in the above-mentioned background technology. To achieve the above-mentioned purpose, the technical solution adopted by this utility model is:

[0005] A low wind resistance and low noise PTC heater includes a first heating plate, a second heating plate, a third heating plate and a heater. The second heating plate is installed below the first heating plate, and the third heating plate is installed below the second heating plate. Heaters are installed between the first heating plate and the second heating plate and between the second heating plate and the third heating plate. The first heating plate and the second heating plate have the same structure and are symmetrically distributed. The first heating plate includes a first main board, a first steel frame and a first corrugated thermal wire. The first main board is arranged on the top of the first steel frame, and a continuous first corrugated thermal wire is welded inside the first steel frame.

[0006] Preferably, the second heating plate includes a second main board, a second steel frame and a second corrugated thermal wire. The second main board is provided with a second steel frame on the top and the bottom, and a continuous second corrugated thermal wire is welded inside the second steel frame.

[0007] Preferably, the first corrugated thermal wire and the second corrugated thermal wire have the same structure.

[0008] Preferably, the sharp corner of the first corrugated thermal wire is a 3-5 mm plane.

[0009] Preferably, the spacing between the first corrugated thermal wires is 5 mm to 15 mm.

[0010] Preferably, a plurality of groups of reinforcing ribs are provided on the inner side or the outer side of the first corrugated heat conductive wire, and the reinforcing ribs are used to increase the pressure resistance of the heating plate.

[0011] Preferably, the reinforcing ribs are accordion-shaped.

[0012] The beneficial effects of the present invention are as follows: by providing reinforcing ribs on the corrugated thermal wire, the pressure resistance of the PCT heater is enhanced, and it is not easy to deform during production, thereby improving production efficiency; by the spacing of the corrugated thermal wire is 10mm, the wind resistance is reduced and thus the noise is reduced; by setting the reinforcing ribs to an accordion shape, the wind resistance is further reduced, thereby reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 An overall schematic diagram provided for an embodiment of the present utility model;

[0014] Figure 2 A schematic cross-sectional view of an embodiment of the present invention;

[0015] Figure 3 This is a schematic cross-sectional view of an embodiment of the present invention.

[0016] Among them, the reference numerals in the figures are:

[0017] 1. First heating plate; 11. First main board; 12. First steel frame; 13. First corrugated thermal wire; 2. Second heating plate; 21. Second main board; 22. Second steel frame; 23. Second corrugated thermal wire; 3. Third heating plate; 4. Heater; 5. Reinforcement ribs. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an element centered at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment. The terms "upper end", "lower end", "left side", "right side", "front end", "rear end" and similar expressions used herein are positional relationships with reference to the accompanying drawings.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0022] like Figures 1 to 3 As shown, an embodiment of the utility model provides a low wind resistance and low noise PTC heater, comprising a first heating plate 1, a second heating plate 2, a third heating plate 3 and a heater 4. The second heating plate 2 is installed below the first heating plate 1, and the third heating plate 3 is installed below the second heating plate 2. Heaters 4 are installed between the first heating plate 1 and the second heating plate 2 and between the second heating plate 2 and the third heating plate 3. The first heating plate 1 and the second heating plate 2 have the same structure and are symmetrically distributed. The first heating plate 1 comprises a first main board 11, a first steel frame 12 and a first corrugated thermal wire 13. The first main board 11 is arranged on the top of the first steel frame 12, and a continuous first corrugated thermal wire 13 is welded inside the first steel frame 12.

[0023] In the embodiment, the second heating plate 2 includes a second main board 21 , a second steel frame 22 and a second corrugated thermal wire 23 . The second main board 21 is provided with a second steel frame 22 on the top and bottom. A continuous second corrugated thermal wire 23 is welded inside the second steel frame 22 .

[0024] In the embodiment, the first corrugated thermal wire 13 and the second corrugated thermal wire 23 have the same structure.

[0025] In the embodiment, the sharp corner of the first corrugated heat conductive wire 13 is a 3-5 mm plane.

[0026] In the embodiment, the spacing between the first corrugated heat conductive wires 13 is 5 mm to 15 mm.

[0027] In the embodiment, a plurality of groups of reinforcing ribs 5 are further provided on the inner side or the outer side of the first corrugated heat conductive wire 13 , and the reinforcing ribs 5 are used to increase the pressure resistance of the heating plate.

[0028] In the embodiment, the reinforcing rib 5 is accordion-shaped.

[0029] The above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the scope of patent protection of the present invention shall be defined by the claims.

Claims

1. A low wind resistance and low noise PTC heater, characterized by: It includes a first heating plate, a second heating plate, a third heating plate and a heater. The second heating plate is installed below the first heating plate, and the third heating plate is installed below the second heating plate. The heaters are installed between the first heating plate and the second heating plate and between the second heating plate and the third heating plate. The first heating plate and the second heating plate have the same structure and are symmetrically distributed. The first heating plate includes a first main board, a first steel frame and a first corrugated thermal wire. The first main board is set on the top of the first steel frame, and the first corrugated thermal wire is welded continuously inside the first steel frame.

2. The low wind resistance and low noise PTC heater according to claim 1, characterized in that: The second heating plate includes a second main board, a second steel frame and a second corrugated thermal wire. The second steel frame is provided on the top and bottom of the second main board. The second corrugated thermal wire is welded inside the second steel frame.

3. The low wind resistance and low noise PTC heater according to claim 2, characterized in that: The first corrugated thermal wire and the second corrugated thermal wire have the same structure.

4. The low wind resistance and low noise PTC heater according to claim 1, characterized in that: The sharp corner of the first corrugated thermal wire is a 3-5 mm plane.

5. The low wind resistance and low noise PTC heater according to claim 1, characterized in that: The spacing between the first corrugated thermal wires is 5 mm to 15 mm.

6. The low wind resistance and low noise PTC heater according to claim 1, characterized in that: A plurality of groups of reinforcing ribs are further provided on the inner side or the outer side of the first corrugated thermal wire, and the reinforcing ribs are used to increase the pressure resistance of the heating plate.

7. The low wind resistance and low noise PTC heater according to claim 6, characterized in that: The reinforcing ribs are accordion-shaped.

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