Heater embedded with PTC (Positive Temperature Coefficient) heating component

Abstract

The utility model discloses a heater embedded with a PTC heating assembly, and relates to the technical field of heaters. The heater embedded with the PTC heating assembly comprises the heating assembly, the inner walls of a plurality of metal shells are connected with insulating layers, the left side and the right side of the inner wall of each insulating layer are connected with electrode plates, a heating body is connected between every two electrode plates, and the left ends of the two electrode plates are connected with high-temperature wires. The left side and the right side of the inner wall of the insulating layer are connected with electrode plates, the left ends of the two electrode plates are connected with high-temperature wires, the protective layers on the outer sides of the high-temperature wires are used for protecting the high-temperature wires, the left side and the right side of the outer side of the metal shell are connected with fixing frames, and the multiple sets of metal shells are integrated and fixed through the fixing frames. And finally, the fixing frame is connected with the bottom plate, so that the multiple sets of metal shells can be fixed, and heat of the heating body cannot be dispersed through the metal shells through the insulating layer.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, in particular to a heater with a PTC heating component embedded therein. Background Art

[0002] PTC heater is also called PTC heating element, which is composed of PTC ceramic heating element and aluminum tube. This type of PTC heater has the advantages of small thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and power saving electric heater.

[0003] As a new type of thermistor material, PTC can be mainly used in two categories: switching and heating. Various heater products are made by taking advantage of the switching characteristics of PTC materials such as thermal sensitivity, current limiting, and time delay, as well as the characteristics of no contact, no noise, and long service life. The heating type PTC has stable performance, rapid temperature rise, and little influence from power supply voltage fluctuations.

[0004] In order to improve the heating effect, the existing PTC heater generally fixes the PTC heating component in the metal shell through a thermally conductive gasket to prevent the PTC heating component from loosening and improve the heating efficiency of the PTC heater. However, the thermally conductive gasket affects the heat transfer between the PTC heating component and the metal shell, resulting in low heating efficiency. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a heater with a PTC heating component embedded therein, which solves the problem that the heat conductive pad affects the heat transfer between the heating component and the metal shell.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a heater with a built-in PTC heating component includes a heating component, the heating component includes multiple groups of metal shells, the inner walls of the multiple groups of metal shells are connected to an insulating layer, the left and right sides of the inner wall of the insulating layer are connected to electrode sheets, a heating body is connected between two of the electrode sheets, and the front and rear ends of the heating body are connected to the inner wall of the insulating layer, the left ends of the two electrode sheets are connected to high-temperature wires, and the positions of the two high-temperature wires are distributed up and down, the surface of the high-temperature wire is provided with a protective layer, and the protective layer and the high-temperature wire extend to the left side of the insulating layer and the metal shell, the left and right ends of the multiple groups of metal shells are connected to fixing plates, and the lower ends of the two fixing plates and the multiple groups of metal shells are connected to bottom plates.

[0007] Preferably, the insulating layer is made of polyimide film.

[0008] Preferably, the electrode sheet is made of metal.

[0009] Preferably, the fixing plate is connected to the left and right ends of the insulating layer, and a plurality of through holes matching the high-temperature wires and the protective layer are provided on one side of the left fixing plate.

[0010] Preferably, the protective layer is made of polyester film.

[0011] Preferably, the left and right sides of the surfaces of the multiple groups of metal shells are connected with fixing frames, and the fixing frames are connected to the upper end of the bottom plate, the lower ends of the front and rear sides of the fixing frames are provided with mounting holes, and the bottom plate is provided with mounting grooves that are compatible with the mounting holes.

[0012] Preferably, the heating element is a PTC ceramic body.

[0013] The utility model provides a heater with a PTC heating component embedded therein, which has the following beneficial effects:

[0014] The heating component includes a metal shell, an insulating layer is connected to the inner wall of the metal shell, electrode sheets are connected to the left and right sides of the inner wall of the insulating layer, a heating body is connected between the two electrode sheets, and the left ends of the two electrode sheets are connected to high-temperature wires. The protective layer on the outside of the high-temperature wire is used to protect the high-temperature wire, and the high-temperature wire is located on the left side of the insulating layer and the metal shell. The fixing plates connected to the left and right ends of the metal shell are used to fix multiple groups of metal shells into one, and the fixing plates and the bottom plate at the lower end of the metal shell are used for support. The left and right sides of the outer side of the metal shell are connected to fixing frames, and the multiple groups of metal shells are integrated and fixed by the fixing frames. Finally, the multiple groups of metal shells are fixed by connecting the fixing frames to the bottom plate. The heat of the heating body will not be dispersed through the metal shell through the insulating layer, so that the heating efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the metal housing of the utility model;

[0017] Figure 3 This is a schematic diagram of the fixing frame of the utility model;

[0018] Figure 4 This is a schematic diagram of the insulation layer of the utility model;

[0019] In the figure: 1. heating component; 2. metal shell; 3. insulating layer; 4. electrode sheet; 5. heating element; 6. high-temperature wire; 7. protective layer; 8. fixing plate; 9. bottom plate; 10. fixing frame; 11. mounting hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a heater with a PTC heating component embedded therein comprises a heating component 1, wherein the heating component 1 comprises a plurality of metal shells 2, the inner walls of the plurality of metal shells 2 are connected with an insulating layer 3, the left and right sides of the inner wall of the insulating layer 3 are connected with electrode sheets 4, a heating element 5 is connected between two of the electrode sheets 4, and the front and rear ends of the heating element 5 are connected to the inner wall of the insulating layer 3, the left ends of the two electrode sheets 4 are connected with a high-temperature wire 6, and the positions of the two high-temperature wires 6 are distributed up and down, a protective layer 7 is provided on the surface of the high-temperature wire 6, and the protective layer 7 and the high-temperature wire 6 extend to the left side of the insulating layer 3 and the metal shell 2, the left and right ends of the plurality of metal shells 2 are connected with a fixing plate 8, and the lower ends of the two fixing plates 8 and the plurality of metal shells 2 are connected with a bottom plate 9. The heating component 1 includes a metal shell 2, an insulating layer 3 is connected to the inner wall of the metal shell 2, electrode sheets 4 are connected to the left and right sides of the inner wall of the insulating layer 3, a heating element 5 is connected between the two electrode sheets 4, and the left ends of the two electrode sheets 4 are connected to high-temperature wires 6. The protective layer 7 on the outside of the high-temperature wire 6 is used to protect the high-temperature wire 6, and the high-temperature wire 6 is located on the left side of the insulating layer 3 and the metal shell 2. The fixing plates 8 connected to the left and right ends of the metal shell 2 are used to fix multiple groups of metal shells 2 into one, and the fixing plates 8 and the bottom plate 9 at the lower end of the metal shell 2 are used for support. The left and right sides of the outer side of the metal shell 2 are connected to fixing frames 10, and the multiple groups of metal shells 2 are integrated and fixed through the fixing frames 10. Finally, the multiple groups of metal shells 2 can be fixed by connecting the fixing frames 10 to the bottom plate 9. The heat of the heating element 5 will not be dispersed through the metal shell 2 through the insulating layer 3, so that the heating efficiency is improved.

[0022] See also Figure 1-4 The utility model provides a technical solution: the insulating layer 3 is made of a polyimide film material. The insulating layer 3 is made of a polyimide film material, which has high thermal stability, mechanical hardness and excellent insulation performance, can withstand high temperature and high pressure, and is not easy to age and corrode.

[0023] See also Figure 1-4 The utility model provides a technical solution: the electrode sheet 4 is made of metal. The electrode sheet 4 is made of metal, has good electrical conductivity and thermal stability, and is suitable for high temperature and high current density environments.

[0024] See also Figure 1-4 The utility model provides a technical solution: the fixing plate 8 is connected to the left and right ends of the insulating layer 3, and a plurality of through holes are provided on one side of the left fixing plate 8 to match the high-temperature wire 6 and the protective layer 7. The through holes provided on the left fixing plate 8 allow the high-temperature wire 6 and the protective layer 7 to be inserted.

[0025] See also Figure 1-4 The utility model provides a technical solution: the protective layer 7 is made of polyester film. The protective layer 7 is made of polyester film, which has the characteristics of strong mechanical properties, good insulation performance, bending resistance, temperature resistance, etc.

[0026] See also Figure 1-4 The utility model provides a technical solution: the left and right sides of the surfaces of the multiple groups of metal shells 2 are connected with fixing frames 10, and the fixing frames 10 are connected to the upper end of the bottom plate 9, the lower ends of the front and rear sides of the fixing frames 10 are provided with mounting holes 11, and the bottom plate 9 is provided with mounting grooves adapted to the mounting holes 11. The two groups of fixing frames 10 on the surfaces of the multiple groups of metal shells 2 are connected to the bottom plate 9, so that the multiple groups of metal shells 2 can be fixed, and the fixing frames 10 and the bottom plate 9 are connected by fasteners in the mounting holes 11.

[0027] See also Figure 1-4 The utility model provides a technical solution: the heating element 5 is a PTC ceramic body. The heating element 5 is a PTC ceramic body, and its performance varies with room temperature resistivity, temperature transition, resistance temperature coefficient and maximum resistivity.

[0028] When working, the heating component 1 includes a metal shell 2, the inner wall of the metal shell 2 is connected to an insulating layer 3, the left and right sides of the inner wall of the insulating layer 3 are connected to electrode sheets 4, a heating element 5 is connected between the two electrode sheets 4, the left ends of the two electrode sheets 4 are connected to a high-temperature wire 6, the protective layer 7 on the outside of the high-temperature wire 6 is used to protect the high-temperature wire 6, and the high-temperature wire 6 is located on the left side of the insulating layer 3 and the metal shell 2, the fixing plate 8 and the bottom plate 9 at the lower end of the metal shell 2 are used for support, and the left and right sides of the outer side of the metal shell 2 are connected to a fixing frame 10, and the fixing frame 10 is used to integrate and fix multiple groups of metal shells 2, and finally the fixing frame 10 is connected to the bottom plate 9 so that the multiple groups of metal shells 2 can be fixed, and the heat of the heating element 5 will not be dispersed through the metal shell 2 through the insulating layer 3, so that the heating efficiency is improved.

[0029] In summary, the heater with a built-in PTC heating component solves the problem that the thermal conductive gasket affects the heat transfer between the heating component and the metal shell.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heater with a PTC heating component embedded therein, comprising a heating component (1), characterized in that: The heating component (1) comprises a plurality of groups of metal shells (2), the inner walls of the plurality of groups of metal shells (2) are all connected to an insulating layer (3), the left and right sides of the inner wall of the insulating layer (3) are all connected to electrode sheets (4), a heating element (5) is connected between two of the electrode sheets (4), and the front and rear ends of the heating element (5) are connected to the inner wall of the insulating layer (3), the left ends of the two electrode sheets (4) are all connected to high-temperature wires (6), and the two high-temperature wires (6) are arranged in an upper and lower position, a protective layer (7) is provided on the surface of the high-temperature wire (6), and the protective layer (7) and the high-temperature wire (6) extend to the left side of the insulating layer (3) and the metal shell (2), the left and right ends of the plurality of groups of metal shells (2) are all connected to fixing plates (8), and the lower ends of the two fixing plates (8) and the plurality of groups of metal shells (2) are connected to bottom plates (9).

2. A heater with a PTC heating component embedded therein according to claim 1, characterized in that: The insulating layer (3) is made of a polyimide film.

3. The heater with a built-in PTC heating component according to claim 1, characterized in that: The electrode sheet (4) is made of metal.

4. The heater with a built-in PTC heating component according to claim 1, characterized in that: The fixing plate (8) is connected to the left and right ends of the insulating layer (3), and a plurality of through holes matching the high-temperature wires (6) and the protective layer (7) are provided on one side of the fixing plate (8) on the left side.

5. The heater with a built-in PTC heating component according to claim 1, characterized in that: The protective layer (7) is made of polyester film.

6. The heater with a built-in PTC heating component according to claim 1, characterized in that: A plurality of groups of fixing frames (10) are connected to the left and right sides of the surface of the metal shell (2), and the fixing frames (10) are connected to the upper end of the bottom plate (9). The lower ends of the front and rear sides of the fixing frames (10) are provided with mounting holes (11), and the bottom plate (9) is provided with mounting grooves that match the mounting holes (11).

7. The heater with a built-in PTC heating component according to claim 1, characterized in that: The heating element (5) is a PTC ceramic body.

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