PTC heater with novel support

Abstract

The utility model provides a PTC heater with novel supports, which comprises a heating core body formed by combining heat dissipation strips and PTC heating units into a whole, the upper and lower sides of the heating core body in the length direction are respectively provided with a support, the left side of each support is provided with a buckle, the right side of each support is provided with a clamping table, the buckle of the support at the upper end clamps the clamping table of the support at the lower end, and the support at the lower end clamps the clamping table of the support at the lower end. The two side edges of the support are each provided with a through groove in the length direction of the heat dissipation strip so that the heat dissipation strip can be installed. The LED lamp has the advantages that the heat dissipation strips and the supports are connected in a buckling mode, the ends of the heat dissipation strips are arranged between the upper support and the lower support, the heat dissipation strips and the upper support and the lower support are connected in a clamping mode through the buckling structures of the supports, the process is simple, installation is convenient and fast, the supports are miniaturized, the upper support and the lower support are both parts, and cost is low. On one hand, part management is facilitated, on the other hand, only one mold needs to be opened, and the product cost is integrally and effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of PTC heaters, and particularly relates to a PTC heater with a novel bracket. Background Art

[0002] A PTC (positive temperature coefficient) electric heater is an electric heater based on semiconductor materials, which has the advantages of high thermal efficiency, high power, no open flame, safety, etc., and is an ideal material for heating devices.

[0003] A PTC heater generally consists of a heating core and a bracket. There are generally two connection methods between the bracket and the heating core on the market: one is bolt fixation, where the bolt is driven through the bracket into the heat dissipation strip of the heating core. One defect of this fixation method is that the bolt driven into the heat dissipation strip will block a certain amount of cold air from passing through, thereby affecting the power performance of the PTC heater. The other is adhesive fixation, which requires curing after applying glue, and the curing time is relatively long, resulting in low production efficiency. Therefore, corresponding technical solutions need to be designed to solve the existing technical problems. Summary of the Utility Model

[0004] The purpose of the utility model is to utilize the structural design of the bracket itself to solve the connection and fixation between the bracket and the heat dissipation strip.

[0005] To achieve the above purpose, the utility model provides a PTC heater with a novel bracket, including: a heating core in which a heat dissipation strip and a PTC heating unit are combined into one. On both sides of the heating core in the length direction, one upper and one lower bracket are respectively arranged. A buckle is arranged on the left side of the bracket, and a clamping platform is arranged on the right side. The buckle of the upper bracket clamps the clamping platform of the lower bracket. Through grooves in the length direction of the heat dissipation strip are arranged on both sides of the bracket to install the heat dissipation strip.

[0006] As a preferred embodiment of the utility model, a protruding step is arranged on the upper side of the bottom surface of the through groove of the bracket to limit the movement of the heat dissipation strip in the length direction.

[0007] As a preferred embodiment of the utility model, chamfers are arranged at the upper openings of both walls of the through groove of the bracket to provide a guiding function for installing the heat dissipation strip.

[0008] As a preferred embodiment of the utility model, the clamping platform of the bracket is a wedge-shaped column platform, and the wedge surface helps the insertion of the buckle.

[0009] As a preferred embodiment of the utility model, extension structures are arranged at the front and rear ends of the heat dissipation strip, and front limiting protrusions and rear limiting protrusions are respectively arranged in the up and down directions of the extension structures.

[0010] As a preferred embodiment of the present utility model, a terminal installation part is provided at the head of the front-end extension structure of the heat dissipation strip.

[0011] As a preferred embodiment of the present utility model, the material of the bracket is an insulating plastic with a temperature resistance of 80°C to 300°C.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] First, the connection method between the heat dissipation strip and the bracket adopts a snap connection method. The end of the heat dissipation strip is arranged between the upper and lower brackets, and the snap structures provided on the bracket itself are used for snap connection with each other. The process is simple, and the installation is convenient and fast. In addition, the bracket adopts a miniaturized design, and both the upper and lower brackets are a single part. On the one hand, it is beneficial for part management, and on the other hand, only one set of molds needs to be opened, effectively reducing the overall product cost.

[0014] Second, arranging brackets on both sides of the PTC heating core has the functions of preventing electric shock and scalding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of a PTC heater assembly with a new type of bracket

[0017] Figure 2 It is an exploded view of a PTC heater with a new type of bracket

[0018] Figure 3 It is a front cross-sectional view of the assembly of the heat dissipation strip and the bracket

[0019] Figure 4 It is a schematic diagram of the bracket

[0020] Figure 5 It is a schematic diagram of the heat dissipation strip

[0021] Figure 6 It is a side cross-sectional view of the assembly of the heat dissipation strip and the bracket

[0022] 1 - Heating core; 11 - Heat dissipation strip; 12 - PTC heating unit; 2 - Bracket; 21 - Snap; 22 - Card table; 23 - Through groove; 231 - Step; 232 - Chamfer; 1101 - Front extension structure of the heat dissipation strip; 1102 - Rear extension structure of the heat dissipation strip; 1101A - Front limit protrusion; 1101B - Terminal installation part; 1102A - Rear limit protrusion; Detailed Implementation Modes

[0023] Exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0024] Among them, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] The following further describes the design with reference to the structural specification drawings.

[0026] As Figure 1-3 Exemplarily shown, a PTC heater with a new type of bracket, a heating core (1) in which a heat dissipation strip (11) and a PTC heating unit (12) are combined into one body. On both sides in the length direction of the heating core (1), a bracket (2) is provided respectively above and below. A buckle (21) is provided on the left side of the bracket, and a clamping platform (22) is provided on the right side. The buckle (21) of the upper bracket clamps the clamping platform (22) of the lower bracket. Through grooves (23) in the length direction of a heat dissipation strip (11) are provided on both sides of the bracket (2) to install the heat dissipation strip (11).

[0027] As Figure 4 、 Figure 6 Shown, further improved, a protruding step (231) is provided on the side upward from the bottom surface of the through groove (23) of the bracket to limit the movement of the heat dissipation strip (11) in the length direction.

[0028] As Figure 4 Shown, further improved, chamfers (232) are provided at the upper openings of both walls of the through groove (23) of the bracket to provide a guiding function when installing the heat dissipation strip.

[0029] As Figure 3 Shown, further improved, the clamping platform (22) of the bracket is a wedge-shaped column platform, and the wedge-shaped surface helps the insertion of the buckle (21).

[0030] As Figure 5 Shown, further improved, extension structures (1101) and (1102) are provided at the front and rear ends of the heat dissipation strip (11) respectively. Front limit protrusions (1101A) and rear limit protrusions (1102A) are provided in the up and down directions of the extension structures. The limit protrusions are arranged in cooperation with the protruding steps (231) of the bracket (2) to prevent the heat dissipation strip (11) from moving in the length direction.

[0031] As Figure 5 shown, further improved, a terminal mounting portion (1101B) is provided at the head of the front end extension structure (1101) of the heat dissipation strip (11) to mount the power terminal (3).

[0032] Further improved, the material of the bracket (2) is an insulating plastic resistant to temperatures from 80°C to 300°C.

[0033] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A PTC heater with a new type of bracket, characterized in that: A heating core body (1) in which a heat dissipation strip (11) and a PTC heating unit (12) are combined into one body. On both sides in the length direction of the heating core body (1), a bracket (2) is respectively arranged above and below. A buckle (21) is arranged on the left side of the bracket, and a clamping platform (22) is arranged on the right side. The buckle (21) of the upper bracket clamps the clamping platform (22) of the lower bracket. On both sides of the bracket (2), a through groove (23) in the length direction of the heat dissipation strip (11) is respectively arranged to install the heat dissipation strip (11).

2. The PTC heater with a new type of bracket according to claim 1, characterized in that: On one side of the bottom surface of the through groove (23) of the bracket, a protruding step (231) is arranged upwards.

3. The PTC heater with a novel bracket according to claim 2, characterized in that: At the upper opening of the two walls of the through groove (23) of the bracket, a chamfer (232) is arranged.

4. A PTC heater with a new type of bracket according to claim 3, characterized in that: The clamping platform (22) of the bracket is a wedge-shaped column platform.

5. The PTC heater with a novel bracket according to claim 4, characterized in that: At the front and rear ends of the heat dissipation strip (11), extension structures (1101, 1102) are respectively arranged. On the upper and lower directions of the extension structures, limit protrusions (1101A, 1102A) are respectively arranged. The limit protrusions are arranged in cooperation with the protruding steps (231) of the bracket (2) to prevent the heat dissipation strip (11) from moving in the length direction.

6. The PTC heater with a new type of bracket according to claim 5, characterized in that: At the head of the front-end extension structure (1101) of the heat dissipation strip (11), a terminal installation part (1101B) is arranged to install a power terminal (3).

7. A PTC heater with a new type of bracket according to any one of claims 1 to 6, characterized in that: The material of the bracket (2) is an insulating plastic with a temperature resistance of 80°C to 300°C.

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