PTC electric heater assembly

Abstract

The utility model relates to a PTC electric heater assembly. Comprising a heating core body and a fin mechanism. Fin mechanisms are arranged on the upper and lower surfaces of the heating core body; the fin mechanism is composed of a plurality of fins of a rectangular wave structure, and the length of the fins is matched with the length of the heating core body. A plurality of fins in the two groups of fin mechanisms are respectively mounted on the upper surface and the lower surface of the heating core body in sequence; the wave crests and the wave troughs of every two adjacent fins are arranged side by side. The technical problems that in the prior art, a heat dissipation aluminum strip is prone to falling off in the using process, meanwhile, the shoveling and cutting integrated scale-shaped finned tube machining needs assistance of cutting fluid, chemical cleaning is needed after machining, waste water pollution is caused, and then the environment is affected are solved.

Description

Technical Field

[0001] The utility model relates to the field of electric heaters, and particularly to a PTC electric heater assembly. Background Art

[0002] The original technologies respectively consist of an aluminum heat dissipation strip formed by rolling and welding aluminum strips and a PTC heating core bonded and cured with silica gel, and a flake-shaped fin tube PTC electric heater formed by shoveling and integrating. The production cost of the heat dissipation aluminum strip is relatively high, and it requires assembly and then welding process. The body weight of the aluminum strip is relatively heavy. The bonding between the heat dissipation aluminum strip and the heating core has a risk of falling off due to different coefficients of thermal expansion. The processing of the shoveled and integrated flake-shaped fin tube requires the assistance of cutting fluid and chemical cleaning after processing, which generates waste water pollution and affects the environment. There are also drawbacks in the pressing after the shoveled fin tube is assembled with the heating core. Only the two sides of the fin tube can be pressed, which is likely to cause the middle of the aluminum tube to bulge outwards and reduce the aging function, and the efficiency decay is fast. Summary of the Utility Model

[0003] By providing a PTC electric heater assembly in an embodiment of the present application, the technical problems in the prior art solutions that the heat dissipation aluminum strip is prone to falling off during use, and the processing of the shoveled and integrated flake-shaped fin tube requires the assistance of cutting fluid and chemical cleaning after processing, which leads to waste water pollution and further affects the environment are solved.

[0004] The technical solution adopted in the embodiment of the present application is as follows:

[0005] A PTC electric heater assembly includes a heating core body and a fin mechanism; the fin mechanism is arranged on both the upper and lower surfaces of the heating core body; the fin mechanism is composed of a plurality of fins in a rectangular wave structure, and the length of the fin is adapted to the length of the heating core body; a plurality of fins in the two groups of fin mechanisms are respectively installed on the upper and lower surfaces of the heating core body in sequence; the wave crests and wave troughs of two adjacent fins are arranged side by side.

[0006] A further technical solution is that the two groups of fin mechanisms and the upper and lower surfaces of the heating core body are bonded and cured together through environment-friendly silica gel.

[0007] A further technical solution is that a plurality of broken heat dissipation surfaces are arranged in a single group of fins in the fin mechanism.

[0008] One or more technical solutions provided in the embodiment of the present application have at least the following technical effects or advantages:

[0009] 1. Due to the adoption of the heating core body and the fin mechanism, since the fins in the fin mechanism are formed by stamping with intelligent equipment, no additional assembly and chemical cleaning are required. The overall production is simple and efficient. Multiple broken heat dissipation surfaces are designed in a single set of fins. The designed shape of the fins ensures the passage of air volume while increasing the heat dissipation effect, reducing the weight of the material, saving the raw material cost, and being able to reduce the cost by 10% - 15% based on the original product with the same power. The shape design of the fins reduces the slender angles and has a semi-transparent effect, effectively solving the problem of residual condensate water in the air conditioner and avoiding the long-term corrosion and oxidation of the aluminum fins by the condensate water and the blowing out of white dust. Since the fins adopt a function similar to that of a spring, it effectively solves the possibility of glue shedding caused by thermal expansion and contraction. Brief Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of a PTC electric heater assembly in an embodiment of the present invention.

[0011] In the figure: 1. Heating core body; 2. Fin mechanism. Detailed Embodiment

[0012] By providing a PTC electric heater assembly in an embodiment of the present application, the technical problems in the prior art solution that the heat dissipation aluminum strip is prone to fall off during use, and at the same time, the processing of the integrated shovel-shaped finned tube requires the assistance of cutting fluid and needs chemical cleaning after processing, which leads to wastewater pollution and thus affects the environment are solved.

[0013] The overall idea of the technical solution in the embodiment of the present application to solve the above problems is as follows:

[0014] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings of the specification and specific embodiments.

[0015] A PTC electric heater assembly, as Figure 1 shown, - includes a heating core body 1 and a fin mechanism 2. The fin mechanism 2 is provided on both the upper and lower surfaces of the heating core body 1. The fin mechanism 2 is composed of multiple fins in a rectangular wave structure, and the length of the fins is adapted to the length of the heating core body 1. The multiple fins in the two groups of fin mechanisms 2 are respectively installed on the upper and lower surfaces of the heating core body 1 in sequence. The peaks and valleys of two adjacent fins are arranged side by side.

[0016] The two groups of fin mechanisms 2 and the upper and lower surfaces of the heating core body 1 are bonded and cured together through environmentally friendly silica gel.

[0017] Multiple broken heat dissipation surfaces are provided in a single set of fins in the fin mechanism 2.

[0018] The fins in the fin mechanism 2 are formed by stamping with intelligent equipment, without the need for additional assembly and chemical cleaning. The overall production is simple and efficient. Multiple broken heat dissipation surfaces are designed in a single set of fins. The designed shape of the fins ensures the passage of air volume, increases the heat dissipation effect, reduces the weight of the material, saves the raw material cost, and can reduce the cost by 10% - 15% based on the original product with the same power. The shape design of the fins reduces the slender angles and has a semi-transparent effect, effectively solving the problem of residual air conditioner condensate water, and avoiding the corrosion and oxidation of aluminum fins by condensate water for a long time and the blowing out of white dust. The fins can adopt a function similar to that of a spring, effectively solving the possibility of glue shedding caused by thermal expansion and contraction.

[0019] Due to the setting of the heating core body 1 and the fin mechanism 2, since the fins in the fin mechanism 2 are formed by stamping with intelligent equipment, without the need for additional assembly and chemical cleaning, the overall production is simple and efficient. Multiple broken heat dissipation surfaces are designed in a single set of fins. The designed shape of the fins ensures the passage of air volume, increases the heat dissipation effect, reduces the weight of the material, saves the raw material cost, and can reduce the cost by 10% - 15% based on the original product with the same power. The shape design of the fins reduces the slender angles and has a semi-transparent effect, effectively solving the problem of residual air conditioner condensate water, and avoiding the corrosion and oxidation of aluminum fins by condensate water for a long time and the blowing out of white dust. Since the fins adopt a function similar to that of a spring, it effectively solves the possibility of glue shedding caused by thermal expansion and contraction.

[0020] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0021] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A PTC electric heater assembly, characterized in that: The invention comprises a heating core body (1) and a fin mechanism (2); the fin mechanism (2) is arranged on both the upper and lower surfaces of the heating core body (1); the fin mechanism (2) is composed of a plurality of fins in a rectangular wave structure, and the length of the fins is adapted to the length of the heating core body (1); a plurality of fins in two groups of the fin mechanism (2) are respectively and sequentially mounted on the upper and lower surfaces of the heating core body (1); and the wave crests and wave troughs of two adjacent fins are arranged side by side.

2. A PTC electric heater assembly as claimed in claim 1, characterized in that: The two groups of fin mechanisms (2) and the upper and lower surfaces of the heating core body (1) are bonded and cured together by environmentally friendly silicone.

3. A PTC electric heater assembly as claimed in claim 1, characterized in that: A single set of fins in the fin mechanism (2) is provided with a plurality of broken heat dissipation surfaces.

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