PTC (Positive Temperature Coefficient) heat dissipation frame structure

Abstract

The utility model relates to the technical field of PTC heaters, in particular to a PTC heat dissipation frame structure which comprises two heat dissipation frame bodies and two connecting bridges, the two heat dissipation frame bodies are arranged in a bilateral symmetry mode, the two connecting bridges are located between the two heat dissipation frame bodies and located at the two ends of the heat dissipation frame bodies respectively, and the two connecting bridges and the two heat dissipation frame bodies are integrally formed. The LED lamp has the advantages of being stable in heat conduction efficiency, easy to assemble and low in cost.

Description

Technical Field

[0001] The present application relates to the technical field of PTC heaters, and more particularly, to a PTC heat dissipation frame structure. Background Art

[0002] PTC heaters are heating devices made from positive temperature coefficient (PTC) materials and are widely used in various heating devices. These heaters are self-regulating. When the temperature rises to a certain level, the heater's resistance increases significantly, reducing the current and preventing overheating. This characteristic makes PTC heaters both safe and efficient in heating applications.

[0003] In the heat dissipation of the PTC heater, the heat exchange of the PTC heater is carried out through the heat dissipation frame. During the heat dissipation process, the PTC heater and the heat dissipation frame need to have good thermal contact to ensure the efficient heat conduction efficiency of the PTC heater. In the related art, the heat dissipation frame is usually composed of four parts, including two heat dissipation frames and two connecting bridges. The two connecting bridges are respectively located at the two ends of the heat dissipation frame and the two ends of each connecting bridge are respectively inserted into the grooves provided on the sides of the two heat dissipation frames to fix the two heat dissipation frames. The PTC heater is clamped between the two heat dissipation frames and contacts the heat dissipation frames to achieve heat exchange. The heat dissipation frame composed of four parts has the following disadvantages: 1. The two heat dissipation frames are fixed by inserting the connecting bridge into the groove. This connection method is unstable during the active use of the radiator, making the two heat dissipation frames easily deviated, resulting in unstable contact with the PTC heater and low heat conduction efficiency. 2. In the process of assembling with the PTC heater, it is more troublesome to manually assemble the four parts of the heat dissipation frame into one, resulting in low production efficiency. 3. The heat sink is formed into four parts, and multiple molds are required in the die-casting process, which is very costly. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a PTC heat dissipation frame structure, which has the advantages of stable conduction efficiency, simple assembly and low cost.

[0005] A PTC heat dissipation frame structure includes two heat dissipation frames and two connecting bridges. The two heat dissipation frames are arranged symmetrically on the left and right. The two connecting bridges are located between the two heat dissipation frames and at both ends of the heat dissipation frames. The two connecting bridges and the two heat dissipation frames are integrally formed.

[0006] Preferably, the heat dissipation frame includes a vertical plate and a plurality of horizontal plates, the plurality of horizontal plates are arranged along the length direction of the vertical plates, and the plurality of horizontal plates and the vertical plates are integrally formed, and the connecting bridge is formed between two of the vertical plates.

[0007] Preferably, the heat dissipation frame includes a vertical plate and two curved plates, the two curved plates are respectively located at both ends of the vertical plate, and the inner curved surfaces of the two curved plates are arranged facing each other, the two curved plates and the vertical plate are integrally formed, and the connecting bridge is formed between the two vertical plates.

[0008] Preferably, the connecting bridge is in the shape of a flat plate.

[0009] Preferably, the heat dissipation frame and the connecting bridge are both made of high thermal conductivity aluminum alloy.

[0010] The beneficial technical effects of the present application are as follows: the two connecting bridges and the two heat dissipation frames are integrally formed, and their preparation method can be achieved by integral press molding, which only requires one mold, and the cost is lower than that of a heat dissipation frame divided into four parts. The PTC heater is passed through the two connecting bridges and the two heat dissipation frames, and the two connecting bridges are bent and deformed in opposite directions to clamp the PTC heater, and the two heat dissipation frames are brought close to clamp the PTC heater under the action of bending to achieve contact and fixation of the PTC heater. The integrally arranged connecting bridge is stably connected to the heat dissipation frame. During the active use of the product, the heat dissipation frame and the PTC heater are in stable contact and it is easier to maintain a high heat conduction efficiency. The heat dissipation frame and the PTC are assembled only by placing the PTC heater between the two heat dissipation frames and then bending the connecting bridge. It is simpler and more convenient, which is conducive to improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Schematic diagram of the heat dissipation frame structure of the background technology.

[0012] Figure 2 This is a structural schematic diagram of a PTC heat dissipation frame in Example 1.

[0013] Figure 3 This is a structural schematic diagram of a PTC heat dissipation frame in Example 2.

[0014] Reference numerals: 1, heat dissipation frame; 11, vertical plate; 12, horizontal plate; 13, curved plate; 2, connecting bridge. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0016] Embodiment 1, a PTC heat dissipation frame structure, including two heat dissipation frames 1 and two connecting bridges 2, each heat dissipation frame 1 includes a vertical plate 11 and a plurality of horizontal plates 12, the plurality of horizontal plates 12 are evenly arranged in the length direction of the vertical plate 11 and are integrally formed with the vertical plate 11, the vertical plates 11 of the two heat dissipation frames 1 are arranged symmetrically and the horizontal plates 12 are located on the side away from the two vertical plates 11, the two connecting bridges 2 are arranged between the two vertical plates 11 and are respectively located at the two ends of the vertical plates 11, and the two connecting bridges 2 are integrally formed with the two vertical plates 11, the heat dissipation frame 1 and the connecting bridge 2 are made of high thermal conductivity aluminum alloy, and the heat dissipation frame 1 and the connecting bridge 2 are integrally formed by die casting, by placing the PTC heating element into the two vertical plates 1 1 and the two connecting bridges 2, by bending the two connecting bridges 2 in opposite directions so that the two connecting bridges 2 clamp the PTC heating element and in the process of bending the connecting bridges 2, the two vertical plates 11 will approach each other to clamp the PTC heating element and the sides of the two vertical plates 11 away from the horizontal plate 12 will respectively contact the two sides of the PTC heating element to play a role of thermal contact, the PTC heating element generates heat, and heat exchange is carried out through the contact between the vertical plates 11 and the PTC heating element to achieve heat dissipation of the PTC heat, and the heat is also conducted to the several horizontal plates 12 to dissipate, with high heat dissipation efficiency. The combination of the heat dissipation rack and the PTC heating element can be used in a hot air blower, and the heat on the heat dissipation rack is conducted to the air to heat the air, and the hot air is blown out by the hot air blower to form a hot air flow. The integrated hot air rack structure can be realized with only one mold, and its cost is lower than that of a heat sink divided into four parts. It has stable contact with the PTC heating element, which facilitates maintaining a high heat conduction efficiency. When assembling with the PTC heating element, the heat sink and the PTC can be assembled by simply placing the PTC heating element between the two heat sink bodies 1 and then bending the connecting bridge 2. This is simple and convenient, and is conducive to improving production efficiency.

[0017] Furthermore, the connecting bridge 2 is in the shape of a flat plate, and it is easier to bend the connecting bridge 2 in the shape of a flat plate.

[0018] Furthermore, the two opposite side surfaces of the plurality of horizontal plates 12 are flush with the two side surfaces in the width direction of the vertical plates 11 , making the heat dissipation frame 1 more beautiful.

[0019] Example 2

[0020] The difference between Example 2 and Example 1 is that the heat dissipation frame 1 includes a vertical plate 11 and two curved plates 13, the two curved plates 13 are respectively located at the two ends of the vertical plate 11, and the inner curved surfaces of the two curved plates 13 are arranged facing each other, the two curved plates 13 and the vertical plate 11 are integrally formed, and the connecting bridge 2 is formed between the two vertical plates 11. By bending the two connecting bridges 2 in opposite directions, the two connecting bridges 2 clamp the PTC heating element and the sides of the two vertical plates 11 away from the horizontal plate 12 are respectively in contact with the two sides of the PTC heating element to play a role in thermal contact. The PTC heating element generates heat, and the heat is dissipated by the vertical plate 11 and the PTC heating element. The heat exchange is carried out by contacting the heat body to realize heat dissipation of the PTC heat. The heat is also conducted to the curved plate 13 and dissipated. The combination of the heat dissipation frame 1 and the PTC heater can be applied to the curling iron. The curved plates 13 on the two vertical plates 11 are arranged to form a circle, which matches the cylindrical shell of the curling iron. By installing the heat dissipation frame and the PTC heater into the cylindrical shell, the curved plate 13 is in thermal contact with the cylindrical shell. The curved plate 13 conducts heat to the cylindrical shell to heat the cylindrical shell. The heat of the cylindrical shell realizes that the heat acts on the hair, changes the structure of the hair, and achieves the styling effect.

[0021] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A PTC heat dissipation frame structure, characterized by: It includes two heat dissipation frames and two connecting bridges. The two heat dissipation frames are arranged symmetrically on the left and right. The two connecting bridges are located between the two heat dissipation frames and at both ends of the heat dissipation frames. The two connecting bridges and the two heat dissipation frames are integrally formed.

2. A PTC heat dissipation frame structure according to claim 1, characterized in that: The heat dissipation frame includes a vertical plate and a plurality of horizontal plates. The plurality of horizontal plates are arranged along the length direction of the vertical plates, and the plurality of horizontal plates and the vertical plates are integrally formed. The connecting bridge is formed between two of the vertical plates.

3. The PTC heat dissipation frame structure according to claim 1, characterized in that: The heat dissipation frame includes a vertical plate and two curved plates. The two curved plates are respectively located at both ends of the vertical plate, and the inner curved surfaces of the two curved plates are arranged facing each other. The two curved plates and the vertical plate are integrally formed, and the connecting bridge is formed between the two vertical plates.

4. The PTC heat dissipation frame structure according to claim 1, characterized in that: The connecting bridge is in the shape of a flat plate.

5. The PTC heat dissipation frame structure according to claim 1, characterized in that: The heat dissipation frame and the connecting bridge are both made of high thermal conductivity aluminum alloy.

Images