A PTC electric heater

Abstract

The utility model discloses a PTC electric heater, including electric heater board, the support seat of symmetry installation in electric heater board both ends and the terminal stud of fixed connection in the surface of support seat, the outer wall position fixed connection of support seat has the locating plate, the surface mounting of locating plate has clamping assembly. Electric heater board both ends fixed connection support seat, support seat surface fixed connection terminal stud, relative terminal stud installs metal wire, the surface mounting of locating plate has clamping assembly, the surface fixed connection of platform has wire clamp, completes the electric connection of metal wire to the inside of wire clamp after clamping of metal wire, convenient and fast positioning, wire clamp auxiliary traction to metal wire at this moment, good stability, and it is difficult to appear the phenomenon such as loosening and falling, keep the circuit as the passage state, convenient PTC electric heater normal work.

Description

Technical Field

[0001] This utility model belongs to the field of electric heater technology, specifically relating to a PTC electric heater. Background Technology

[0002] A PTC electric heater is an electric heater that combines a PTC ceramic heating element with an aluminum tube. PTC electric heaters have the advantages of low thermal resistance and high heat exchange efficiency, and can automatically maintain a constant temperature and save electricity.

[0003] A search revealed a PTC electric heater with patent publication number CN206024132U. The heating element is fixed at both ends to left and right bases. A metal bracket is fixed to one side of the left and right bases, and the other side of the left and right bases is fixed to the heating element. A thermal protector is fixed to the metal bracket and has a protective sleeve. A plastic base is screwed onto the metal bracket, and a thermal fuse is mounted on the plastic base. The neutral and live wires are led out from both ends of the heating element. The thermal fuse and thermal protector are connected in series with the main circuit via wires. The thermal protector and fuse are distributed sequentially on the metal bracket and connected in series with the circuit via wires for easy repair and replacement after damage. The neutral and live wires are led out from both ends of the heating element. When used in portable air conditioners and dehumidifiers, the thermal protector and thermal fuse are more sensitive to temperature changes when the air outlet and inlet of the appliance are blocked.

[0004] In existing technologies, PTC electric heaters are electrically connected to metal wires at both ends. After the wires are installed, their connection positions cannot be fixed or restrained. During later use, loosening or detachment of the wires will affect the normal operation of the PTC electric heater. Therefore, it is necessary to design a PTC electric heater to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a PTC electric heater to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a PTC electric heater, comprising an electric heater plate, support seats symmetrically installed at both ends of the electric heater plate, and terminals fixedly connected to the surface of the support seats. A positioning plate is fixedly connected to the outer wall of the support seats, and a clamping assembly is installed on the surface of the positioning plate.

[0007] The clamping assembly includes an insulating base vertically mounted on the surface of the positioning plate, a platform fixedly connected to the top of the insulating base, and a wire clamp fixedly connected to the surface of the platform. Supports are fixedly connected to both ends of the electric heater plate, and terminals are fixedly connected to the surfaces of the support bases. Metal wires are installed opposite the terminals. The clamping assembly is mounted on the surface of the positioning plate, and the wire clamp is fixedly connected to the surface of the platform. After the electrical connection of the metal wire is completed, the metal wire is clamped into the inside of the wire clamp for quick positioning. At this time, the wire clamp provides auxiliary traction to the metal wire, ensuring good stability and preventing loosening or falling off, maintaining a continuous circuit and facilitating the normal operation of the PTC electric heater.

[0008] Preferably, the surface of the wire clamp is coated with an anti-slip pad, and the wire clamp is located on the outside of the terminal block.

[0009] Preferably, the positioning plate has symmetrically formed positioning holes on its surface, and the positioning holes are located on one side of the platform.

[0010] Preferably, a protective seat is fixedly connected to the surface of the support base, and the protective seat is located on the outer side of the electric heater plate.

[0011] Preferably, a protective plate is fixedly connected between the two sets of support seats. The protective plate is located outside the electric heater plate, and an isolation gap is provided between the protective plate and the electric heater plate.

[0012] Preferably, the protective plate has weight-reducing holes on its surface.

[0013] Preferably, decorative holes are symmetrically formed on the surface of the protective plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Support bases are fixedly connected to both ends of the electric heater plate. Terminals are fixedly connected to the surface of the support bases. Metal wires are installed opposite the terminals. Clamping components are installed on the surface of the positioning plate. Wire clamps are fixedly connected to the surface of the platform. After completing the electrical connection of the metal wires, the metal wires are clamped into the inside of the wire clamps for quick positioning. At this time, the wire clamps provide auxiliary traction for the metal wires, ensuring good stability and preventing loosening or falling off. This maintains the circuit continuity and facilitates the normal operation of the PTC electric heater.

[0016] 2. A protective plate is fixedly connected between the two sets of support bases. The protective plate isolates and protects the electric heater plate, and has a good anti-accidental collision protection effect during the assembly process. The protective plate has weight-reducing holes on its surface and decorative holes symmetrically opened on its surface to reduce the weight of the protective plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the electric heater plate and support base structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the platform structure of this utility model.

[0021] In the diagram: 1. Electric heater plate; 2. Protective plate; 3. Support base; 4. Terminal block; 5. Positioning plate; 6. Protective base; 7. Platform; 8. Wire clamp; 9. Anti-slip pad; 10. Insulating base; 11. Positioning hole; 12. Weight reduction hole; 13. Decorative hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1 to 4 This utility model provides a PTC electric heater technical solution: including an electric heater plate 1, support seats 3 symmetrically installed at both ends of the electric heater plate 1, and terminal blocks 4 fixedly connected to the surface of the support seats 3. A positioning plate 5 is fixedly connected to the outer wall of the support seats 3, and a clamping assembly is installed on the surface of the positioning plate 5.

[0024] The clamping assembly includes an insulating base 10 vertically mounted on the surface of the positioning plate 5, a platform 7 fixedly connected to the top of the insulating base 10, and a wire clamp 8 fixedly connected to the surface of the platform 7.

[0025] The surface of the wire clamp 8 is bonded with an anti-slip pad 9. The wire clamp 8 is located on the outside of the terminal block 4. The surface of the positioning plate 5 is symmetrically provided with positioning holes 11. The positioning holes 11 are located on one side of the platform 7. The surface of the support base 3 is fixedly connected with a protective seat 6. The protective seat 6 is located on the outside of the electric heater plate 1.

[0026] As can be seen from the above description, the present invention has the following beneficial effects: the electric heater plate 1 is fixedly connected to the support base 3 at both ends, the support base 3 is fixedly connected to the terminal post 4, and the metal wire is installed opposite to the terminal post 4. The positioning plate 5 is equipped with a clamping component, and the platform 7 is fixedly connected to the wire clamp 8. After the electrical connection of the metal wire is completed, the metal wire is clamped into the inside of the wire clamp 8 for easy and quick positioning. At this time, the wire clamp 8 provides auxiliary traction for the metal wire, which has good stability and is not prone to loosening or falling off, keeping the circuit in a closed state and facilitating the normal operation of the PTC electric heater.

[0027] Example 2: Please refer to Figures 1 to 4 As shown, based on Embodiment 1, this utility model provides a PTC electric heater technical solution: a protective plate 2 is fixedly connected between two sets of support bases 3. The protective plate 2 is located on the outer side of the electric heater plate 1, and an isolation gap is provided between the protective plate 2 and the electric heater plate 1. Weight reduction holes 12 are opened on the surface of the protective plate 2, and decorative holes 13 are symmetrically opened on the surface of the protective plate 2.

[0028] Using the above technical solution, a protective plate 2 is fixedly connected between the two sets of support bases 3. The protective plate 2 isolates and protects the electric heater plate 1, and has a good anti-accidental collision protection effect during the assembly process. The protective plate 2 has weight reduction holes 12 on its surface and decorative holes 13 symmetrically opened on its surface to reduce the weight of the protective plate 2.

[0029] The working principle and usage process of this utility model are as follows: Support bases 3 are fixedly connected to both ends of the electric heater plate 1. Terminal posts 4 are fixedly connected to the surface of the support base 3, and metal wires are installed opposite the terminal posts 4. Clamping components are installed on the surface of the positioning plate 5, and wire clamps 8 are fixedly connected to the surface of the platform 7. After completing the electrical connection of the metal wires, the metal wires are clamped into the inside of the wire clamps 8 for quick positioning. At this time, the wire clamps 8 provide auxiliary traction for the metal wires, ensuring good stability and preventing loosening or falling off, thus maintaining a continuous circuit and facilitating the normal operation of the PTC electric heater. A protective plate 2 is fixedly connected between the two sets of support bases 3. The protective plate 2 isolates and protects the electric heater plate 1, providing excellent protection against accidental contact during assembly. Weight-reducing holes 12 and decorative holes 13 are symmetrically opened on the surface of the protective plate 2 to reduce its weight.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A PTC electric heater, comprising an electric heater plate (1), support seats (3) symmetrically mounted at both ends of the electric heater plate (1), and terminals (4) fixedly connected to the surface of the support seats (3), characterized in that: A positioning plate (5) is fixedly connected to the outer wall of the support base (3), and a clamping assembly is installed on the surface of the positioning plate (5). The clamping assembly includes an insulating seat (10) vertically mounted on the surface of the positioning plate (5), a platform (7) fixedly connected to the top of the insulating seat (10), and a wire clamp (8) fixedly connected to the surface of the platform (7).

2. A PTC electric heater according to claim 1, characterized in that: The surface of the clamp (8) is bonded with an anti-slip pad (9), and the clamp (8) is located on the outside of the terminal block (4).

3. A PTC electric heater according to claim 1, characterized in that: The positioning plate (5) has symmetrically provided positioning holes (11) on its surface, and the positioning holes (11) are located on one side of the platform (7).

4. A PTC electric heater according to claim 1, characterized in that: The surface of the support base (3) is fixedly connected to a protective base (6), which is located on the outside of the electric heater plate (1).

5. A PTC electric heater according to claim 1, characterized in that: A protective plate (2) is fixedly connected between the two sets of support bases (3). The protective plate (2) is located on the outside of the electric heater plate (1), and an isolation gap is provided between the protective plate (2) and the electric heater plate (1).

6. A PTC electric heater according to claim 5, characterized in that: The protective plate (2) has weight-reducing holes (12) on its surface.

7. A PTC electric heater according to claim 6, characterized in that: The protective plate (2) has decorative holes (13) symmetrically opened on its surface.

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