Strength-enhanced PTC (Positive Temperature Coefficient) heater

Abstract

The utility model relates to the technical field of PTC (Positive Temperature Coefficient) heaters, in particular to a strength-enhanced PTC heater, which comprises a heater main body, a plurality of radiating fins are arranged on the outer wall of the heater main body, and mounting seats are mounted at two ends of the heater main body; according to the PTC heater, a moving rod is installed between the two installation bases, a second reinforcing rod is arranged outside the moving rod in a sleeving mode, the structural strength of the PTC heater can be improved conveniently, a limiting block is installed on the inner wall of a moving groove, when the moving rod moves due to external collision, the moving rod can be limited, and the collision force can be relieved through the elastic effect of a spring; the connecting grooves are formed in the four corners of the cooling fins, and the first reinforcing rods are connected in the connecting grooves, so that the strength of the cooling fins can be enhanced, the cooling fins are not prone to deformation, and the problem that the corners of the cooling fins are sharp, so that the service life of the PTC heater is not affected is solved. And the risk that workers are knocked and hurt exists.

Description

Technical Field

[0001] The utility model relates to the technical field of PTC heaters, and specifically relates to a PTC heater with enhanced strength. Background Technique

[0002] The PTC heating element, also known as the PTC heater, is composed of a PTC ceramic heating element and an aluminum tube. This type of PTC heating element has the advantages of low thermal resistance and high heat transfer efficiency, and is an automatically constant-temperature and power-saving electric heater. Its prominent feature lies in its safety performance. Under any application conditions, it will not produce the surface "reddening" phenomenon of heaters such as electric heating tubes, thus causing safety hazards such as scalding and fire.

[0003] In the prior art, a PTC heater usually consists of a heating component, a mounting base, and heat sinks. However, the existing PTC heater has low structural strength and is easily damaged when subjected to external collisions, affecting the service life of the PTC heater. Moreover, due to the thin heat sinks of the PTC heater, the edges and corners of the heat sinks are relatively sharp, posing a risk of bruising the staff. For this reason, we propose a PTC heater with enhanced strength. Content of the Utility Model

[0004] The purpose of the utility model is to provide a PTC heater with enhanced strength to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A PTC heater with enhanced strength, comprising: a heater main body, several heat sinks are arranged on the outer wall of the heater main body, mounting bases are installed at both ends of the heater main body, and a second reinforcing rod is arranged between the two mounting bases;

[0006] A moving groove is opened at one end of the second reinforcing rod, a moving rod is slidably connected inside the moving groove, a spring is connected to the end of the moving rod close to the second reinforcing rod, and a limiting block is installed on the inner wall of the moving groove;

[0007] Connection grooves are opened at the four corners of each heat sink, and a first reinforcing rod is connected to the inner wall of each connection groove.

[0008] Preferably, both of the two mounting bases are U-shaped and symmetrically arranged, and mounting holes are opened at the top wall and the bottom wall of the mutually remote ends of the two mounting bases.

[0009] Preferably, two second reinforcing rods are symmetrically arranged. The two second reinforcing rods are respectively located at the top and the bottom of the heat sinks. One ends of the two moving rods are slidably inserted into the adjacent moving grooves and fixedly connected to the springs, and one ends of the two springs are fixedly installed on the inner walls of the adjacent moving grooves.

[0010] Preferably, four limiting blocks are symmetrically installed inside each of the two moving grooves, and four limiting grooves are formed on the outer walls of the two moving rods close to the adjacent limiting blocks.

[0011] Preferably, one end of each of the two second reinforcing rods and the two moving rods is fixedly connected with a mounting plate, and mounting screws are arranged on the surfaces of the four mounting plates.

[0012] Preferably, there are four first reinforcing rods which are respectively located at the four corners of each heat sink, and fixing plates are fixedly installed at both ends of the four first reinforcing rods, and each fixing plate is fixedly installed on the adjacent mounting seat.

[0013] Preferably, a protective layer is arranged outside each heat sink.

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

[0015] In the utility model, a moving rod is installed between two mounting seats, and a second reinforcing rod is sleeved outside the moving rod, which is convenient for improving the structural strength of the PTC heater. Through the limiting blocks installed on the inner wall of the moving groove, when the moving rod moves due to an external collision, the moving rod can be limited, and the elastic force of the spring can slow down the collision force received, so that the heater main body is not easily damaged by extrusion, so as not to affect the service life of the PTC heater. Through the connecting grooves formed at the four corners of the heat sink and the first reinforcing rods connected in the connecting grooves, the strength of the heat sink can be enhanced, so that it is not easily deformed, and the problem that the edges and corners of the heat sink are relatively sharp and there is a risk of bruising the staff is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is the utility model Figure 1 the enlarged schematic diagram of the structure at A in;

[0018] Figure 3 is a side sectional schematic diagram of the overall structure of the utility model;

[0019] Figure 4 is the utility model Figure 3 the enlarged schematic diagram of the structure at B in;

[0020] Figure 5 is the utility model Figure 3 the enlarged schematic diagram of the structure at C in;

[0021] Figure 6 is a three-dimensional schematic diagram of the inside of the structure of the second reinforcing rod of the utility model.

[0022] In the figure: 1. Heater main body; 2. Heat sink; 3. Mounting seat; 4. Mounting hole; 5. Fixed plate; 6. First reinforcing bar; 7. Connecting groove; 8. Second reinforcing bar; 9. Moving groove; 10. Moving rod; 11. Limiting groove; 12. Limiting block; 13. Spring; 14. Mounting plate; 15. Mounting screw; 16. Protective layer. Detailed implementation manner

[0023] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and 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 cannot be understood as a limitation to the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] For the sake of simplicity and illustration, the principles of the embodiments are mainly described by referring to examples. In the following description, many specific details are put forward to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily making these embodiments difficult to understand. In addition, all embodiments can be combined with each other.

[0027] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a PTC heater with enhanced strength, including: a heater main body 1, several heat sinks 2 are arranged on the outer wall of the heater main body 1, mounting seats 3 are installed at both ends of the heater main body 1, and a second reinforcing rod 8 is arranged between the two mounting seats 3; both mounting seats 3 are U-shaped and symmetrically arranged, and mounting holes 4 are opened on the top wall and the bottom wall of the mutually remote ends of the two mounting seats 3, which is convenient for installing the mounting seats 3 at appropriate positions.

[0028] A moving groove 9 is opened at one end of the second reinforcing rod 8, a moving rod 10 is slidably connected inside the moving groove 9, a spring 13 is connected to the end of the moving rod 10 close to the second reinforcing rod 8, and a limiting block 12 is installed on the inner wall of the moving groove 9; two second reinforcing rods 8 are symmetrically arranged, and the two second reinforcing rods 8 are respectively located at the top and bottom of the heat sink 2, and one end of each of the two moving rods 10 is slidably inserted into the adjacent moving groove 9 and fixedly connected to the spring 13, and one end of each of the two springs 13 is fixedly installed on the inner wall of the adjacent moving groove 9. When the mounting seat 3 receives an external collision and causes the moving rod 10 to move in the moving groove 9, the spring 13 is in a compressed state. Four limiting blocks 12 are symmetrically installed inside each of the two moving grooves 9, and four limiting grooves 11 are opened on the outer walls of the two moving rods 10 close to the adjacent limiting blocks 12, which is convenient for limiting the moving rod 10 so that the moving rod 10 is not easily rotated. One end of each of the two second reinforcing rods 8 and the two moving rods 10 is fixedly connected with a mounting plate 14, and mounting screws 15 are arranged on the surfaces of the four mounting plates 14, which is convenient for detachably installing the four mounting plates 14 on the adjacent mounting seats 3 through the mounting screws 15.

[0029] Connection grooves 7 are opened at the four corners of each heat sink 2, and a first reinforcing rod 6 is connected to the inner wall of each connection groove 7. There are four first reinforcing rods 6 and they are respectively located at the four corners of each heat sink 2. Both ends of the four first reinforcing rods 6 are fixedly installed with fixing plates 5, each fixing plate 5 is fixedly installed on the adjacent mounting seat 3, and the outer walls of the four first reinforcing rods 6 are fixedly welded to the inner walls of the adjacent connection grooves 7. A protective layer 16 is arranged outside each heat sink 2, so that the heat sink 2 is not easily rusted after long-term use.

[0030] When the device is working, through the mounting holes 4 opened at one end of the mounting base 3, it is convenient to install the mounting base 3 at a suitable position. Through the moving rod 10 installed between the two mounting bases 3, and a second reinforcing rod 8 is sleeved outside the moving rod 10, it is convenient to improve the structural strength of the PTC heater. Through the limiting block 12 installed on the inner wall of the moving groove 9, when the moving rod 10 moves due to an external collision, the moving rod 10 can be limited, and the elastic force of the spring 13 can slow down the impact force received, so that the heater body 1 is not easily damaged by extrusion, so as not to affect the service life of the PTC heater. Through the connecting grooves 7 opened at the four corners of the heat sink 2, and a first reinforcing rod 6 is connected in the connecting groove 7, it can not only strengthen the strength of the heat sink 2 and make it not easily deformed, but also solve the problem that the edges and corners of the heat sink 2 are relatively sharp and there is a risk of bruising the staff.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PTC heater with enhanced strength, comprising: Heater body (1), characterized in that: a plurality of radiating fins (2) are arranged on the outer wall of the heater body (1), mounting seats (3) are installed at both ends of the heater body (1), and a second reinforcing rod (8) is arranged between the two mounting seats (3); One end of the second reinforcing rod (8) is provided with a moving groove (9), a moving rod (10) is slidably connected inside the moving groove (9), a spring (13) is connected to the end of the moving rod (10) close to the second reinforcing rod (8), and a limiting block (12) is installed on the inner wall of the moving groove (9); Connecting grooves (7) are opened at the four corners of each radiating fin (2), and a first reinforcing rod (6) is connected to the inner wall of each connecting groove (7).

2. The intensity-strengthened PTC heater according to claim 1, wherein: Both of the two mounting seats (3) are U-shaped and symmetrically arranged, and mounting holes (4) are opened at the top wall and the bottom wall of the ends of the two mounting seats (3) away from each other.

3. The PTC heater with enhanced strength according to claim 1, characterized in that: Two second reinforcing rods (8) are symmetrically arranged, the two second reinforcing rods (8) are respectively located at the top and bottom of the radiating fins (2), one ends of the two moving rods (10) are slidably inserted into the adjacent moving grooves (9) and fixedly connected to the springs (13), and one ends of the two springs (13) are fixedly installed on the inner walls of the adjacent moving grooves (9).

4. The PTC heater with enhanced strength according to claim 3, wherein: Four limiting blocks (12) are symmetrically installed inside each of the two moving grooves (9), and four limiting grooves (11) are opened on the outer walls of the two moving rods (10) close to the adjacent limiting blocks (12).

5. The intensity-strengthened PTC heater according to claim 3, wherein: One ends of the two second reinforcing rods (8) and the two moving rods (10) are fixedly connected with mounting plates (14), and mounting screws (15) are arranged on the surfaces of the four mounting plates (14).

6. The intensity-strengthened PTC heater according to claim 1, wherein: Four first reinforcing rods (6) are provided and are respectively located at the four corners of each radiating fin (2), fixing plates (5) are fixedly installed at both ends of the four first reinforcing rods (6), and each fixing plate (5) is fixedly installed on the adjacent mounting seat (3).

7. The intensity-enhanced PTC heater according to claim 1, characterized in that: A protective layer (16) is arranged outside each radiating fin (2).

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