Compact PTC (Positive Temperature Coefficient) electric heating assembly structure

Abstract

The utility model discloses a compact PTC (Positive Temperature Coefficient) electric heating assembly structure. Belongs to the technical field of heater assembly modes and comprises a fixing frame, the fixing frame comprises wiring cavities arranged on the left side, the right side and the middle, and square holes are formed in the wiring cavities; a plastic support is arranged on the PTC heating element, the plastic support is fixedly arranged in the square hole, the two ends of the plastic support are fixedly connected to the wiring cavity through screws, a wiring terminal of the PTC heating element is arranged in the wiring cavity, and a cover plate is arranged on the wiring cavity in a covering mode. The PTC heating element is fixed in the square hole through the plastic support, the wiring terminal of the PTC heating element is located in the wiring cavity, wiring is convenient, the wiring cavity is covered with the cover plate after wiring is completed, and a circuit is prevented from being exposed outside. A square hole is formed in the wiring cavity, so that the heating element is convenient to assemble and disassemble, the structure is compact, the protection performance is good, and maintenance is convenient; the utility model is convenient for wiring and maintenance, has a more compact structure than other similar products, and saves the installation space of the whole product.

Description

Technical Field

[0001] The utility model belongs to the technical field of heater assembly methods, and relates to a compact PTC electric heating assembly structure. Background Art

[0002] In the prior art, PTC heating elements are widely used, especially more commonly used in air conditioners. During the use of PTC heating elements, they need to be fixed through an electric heater frame. Therefore, it is necessary to connect the PTC heating elements with the electric heater frame. The existing structure is not easy to load and unload, not compact, has poor protection, and is not conducive to maintenance. Summary of the Invention

[0003] Aiming at the above problems, the purpose of the utility model is to propose a compact PTC electric heating assembly structure.

[0004] The technical solution of the utility model is as follows: A compact PTC electric heating assembly structure described in the utility model includes an electric heater frame, and the electric heater frame includes a fixed frame, and the fixed frame includes left and right wiring cavities and a middle wiring cavity arranged on the left, right and middle positions.

[0005] Further, equidistant square holes are opened in the wiring cavity.

[0006] Further, it also includes a PTC heating element, and a plastic bracket adapted to it is arranged on the PTC heating element.

[0007] Further, the PTC heating element is fixed in the corresponding square hole through the arranged plastic bracket;

[0008] Both ends of the plastic bracket are fixedly connected to the wiring cavity provided with square holes through the arranged screws.

[0009] Further, the wiring terminal of the PTC heating element is arranged in the wiring cavity, and a cover plate is covered on the wiring cavity.

[0010] Further, the plastic bracket is a special plastic bracket suitable for the use of PTC heating elements.

[0011] Further, the middle wiring cavity can be selected or not according to needs.

[0012] Further, the temperature control box is in a box-shaped structure, and the volume of one side of it is adapted to the volume of the cover plate.

[0013] The beneficial effects of the present utility model are as follows: 1. The PTC heating element is fixed in the corresponding square hole through a specially designed plastic bracket, so that the wiring terminals of the PTC heating element are located in the wiring cavity, facilitating wiring according to the drawings. After wiring, the cover plate is covered on the wiring cavity to prevent the wires from being exposed; 2. Square holes are provided on the wiring cavity, making it convenient for the heating element to be loaded and unloaded, with a compact structure, good protection performance, and easy maintenance; 3. It is convenient for wiring and maintenance, and the structure is more compact than other similar products, saving the installation space of the overall product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the wiring cavity with square holes provided in the present utility model;

[0016] Figure 3 is an installation schematic diagram of the PTC heating element and the wiring cavity in the present utility model Figure 1 ;

[0017] Figure 4 is an installation schematic diagram of the PTC heating element and the wiring cavity in the present utility model Figure 2 ;

[0018] In the figure: 1. Fixed frame; 2. Wiring cavity; 21. Square hole; 3. PTC heating element. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further elaborates on the specific technical solutions of the present utility model in combination with specific examples.

[0020] As shown in the figure, a compact PTC electric heating assembly structure described in the present utility model includes a PTC heating element 3, and the PTC heating element 3 is fixed on the electric heater frame;

[0021] The electric heater frame includes a fixed frame 1, and the fixed frame 1 includes wiring cavities 2 at the left and right positions. The wiring cavity 2 in the middle position can be selected or not according to needs;

[0022] Square holes 21 are provided on the wiring cavity 2, and the PTC heating element 3 is fixed in the corresponding square holes 21 through a specially designed plastic bracket, so that the wiring terminals of the PTC heating element 3 are located in the wiring cavity 2, facilitating wiring according to the drawings. After wiring, the cover plate is covered on the wiring cavity 2 to prevent the wires from being exposed.

[0023] Furthermore, the square holes 21 can make it convenient for the PTC heating element 3 to be loaded and unloaded, with a compact structure, good protection performance, and easy maintenance.

[0024] Further, for the special plastic bracket of the PTC heating element 3, the PTC heating element 3 is installed on the bracket and placed into the corresponding square hole 21, and then fixed to the wiring cavity 2 with screws, so that the wiring terminal of the PTC heating element 3 is inside the wiring cavity 2, which plays a protective role, is convenient for wiring and maintenance, and has a more compact structure than other similar products, saving the installation space of the overall product.

Claims

1. A compact PTC electric heating assembly structure, characterized in that, It includes a PTC heating element, and the PTC heating element is fixed on the electric heater frame. The electric heater frame includes a fixed frame, and the fixed frame contains wiring cavities at left and right positions; A square hole is opened in the wiring cavity, and the PTC heating element is fixed in the corresponding square hole through a plastic bracket, so that the wiring terminals of the PTC heating element are located in the wiring cavity. After wiring, a cover plate is covered on the wiring cavity; For the special plastic bracket of the PTC heating element, the PTC heating element is installed on the bracket, placed into the corresponding square hole, and fixed on the wiring cavity with screws, so that the wiring terminals of the PTC heating element are inside the wiring cavity.

Images