Energy-saving PTC heater

Abstract

The utility model relates to the technical field of PTC (Positive Temperature Coefficient) heaters, in particular to an energy-saving PTC heater which comprises a shell, electrode plates are arranged in the shell, limiting strips are fixedly connected to the outer walls of the electrode plates, limiting grooves are formed in the inner wall of the shell, a heating sheet is arranged between the two electrode plates, and a positioning block is fixedly connected to the outer wall of the heating sheet. The multiple positioning blocks are located in the positioning grooves, hollow grooves are formed in the heating pieces, flow guide grooves are formed in the outer walls of the two sides of the heating pieces, fins are fixedly connected to the outer walls of the two sides of the heating pieces, fin grooves are formed in the inner walls of the two sides of the shell, and communicating grooves are formed in the inner walls of the two fin grooves. And the right ends of the two electrode plates are fixedly connected with conducting plates. According to the utility model, when the heat dissipating capacity of the heating sheet is increased and the temperature of the shell rises to the same temperature, the heating time of the heating sheet is shortened, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of PTC heaters, in particular to an energy-saving PTC heater. Background Art

[0002] PTC heating elements, also known as PTC heaters, are composed of PTC ceramic heating elements and aluminum tubes. This type of PTC heating element offers low thermal resistance and high heat transfer efficiency, making it an automatic, energy-efficient electric heater with a constant temperature. Its outstanding safety feature is that it will not produce the surface "reddening" phenomenon seen with electric heating tube heaters, which can pose safety risks such as burns or fires, under any application.

[0003] The interior of existing devices is usually corrugated. When the heating element generates heat, the internal heat is discharged through the gaps in the corrugations. The heat dissipation is limited, resulting in the shell taking a long time to reach the specified temperature, which prolongs the heating time of the heating element and increases the energy consumption of the entire device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an energy-saving PTC heater.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an energy-saving PTC heater, comprising a shell, an electrode sheet is provided inside the shell, and there are two electrode sheets, the outer walls of the two electrode sheets are fixedly connected to a limiting bar, and there are two limiting bars respectively, the inner wall of the shell is provided with a limiting groove, and there are multiple limiting grooves, the limiting bar is located inside the limiting groove, a heating sheet is installed in the middle of the two electrode sheets, the outer wall of the heating sheet is fixedly connected with a positioning block, and there are multiple positioning blocks, the positioning block is located inside the positioning groove, a hollow groove is provided inside the heating sheet, guide grooves are provided on both sides of the outer walls of the heating sheet, fins are fixedly connected to both sides of the outer walls of the heating sheet, and there are multiple fins respectively, fin grooves are provided on both sides of the inner walls of the shell, connecting grooves are provided on the inner walls of the two fin grooves, and there are multiple connecting grooves, and the right ends of the two electrode sheets are fixedly connected to conductive sheets.

[0006] As a further description of the above technical solution:

[0007] The plurality of fins are respectively located at the edge of the guide groove, the plurality of fins are respectively located inside the two fin grooves, the plurality of connecting grooves are respectively connected to the two fin grooves, and the plurality of fins respectively correspond to the positions of the plurality of connecting grooves.

[0008] As a further description of the above technical solution:

[0009] The upper and lower surfaces of the outer wall of the shell are both provided with heat dissipation grooves, and the number of the heat dissipation grooves is multiple.

[0010] As a further description of the above technical solution:

[0011] A spring groove is provided on the left side of the inner wall of the shell, and there are two spring grooves. A sliding groove is provided on the left outer wall of the shell, and the sliding groove and the inner walls of the two spring grooves are fixedly connected with a spring, the other end of the spring is fixedly connected with a locking column, and the outer wall of the locking column is fixedly connected with a pull plate, and the pull plate is located inside the sliding groove. A locking groove is provided on the left outer wall of the heating plate, and there are two locking grooves, and the other ends of the two locking columns extend to the inside of the two locking grooves respectively.

[0012] As a further description of the above technical solution:

[0013] The left outer wall of the shell is provided with two connecting grooves, and the right outer wall of the shell is fixedly connected with two connecting bars.

[0014] As a further description of the above technical solution:

[0015] The two connecting grooves correspond to the positions of the multiple connecting bars, and the multiple connecting grooves and the multiple connecting bars are all T-shaped.

[0016] The utility model has the following beneficial effects:

[0017] Buckle the two electrode sheets on the upper and lower outer walls of the heating sheet respectively. At this time, the two positioning blocks connected to the upper and lower outer walls of the heating sheet are respectively located inside the positioning grooves opened at both ends of the two electrode sheets. Align the two limiting strips connected to the back faces of the two electrode sheets with the limiting grooves opened on the upper and lower inner walls of the shell, and insert the two electrode sheets into the interior of the shell, so that the heating sheet enters the interior of the shell together with the two electrode sheets. At this time, the multiple fins connected to the outer walls on both sides of the heating sheet correspond to the positions of the multiple connecting grooves, so that part of the heat generated by the heating sheet can be directly dissipated to the outside of the shell through the multiple connecting grooves, making the outside heated faster. Subsequently, the conductive sheets connected to the right sides of the two electrode sheets are connected to the power supply to energize the electrode sheets, thereby making the heating sheet The heat plate is heated and its temperature rises. Multiple fins are connected to the outer walls on both sides of the heating plate, which increases the contact area between the heating plate and the air, improves the heat dissipation of the heating plate, and shortens the heating time of the heating plate and reduces energy consumption in the process of the shell temperature rising to the same temperature. The existing device is usually corrugated inside. When the heating element generates heat, its internal heat is discharged through the gaps in the corrugations, and the heat dissipation is limited, resulting in the shell taking a long time to reach the specified temperature, which prolongs the heating time of the heating plate and increases the energy consumption of the entire device. The device is provided with multiple fins to increase the contact area with the air, which increases the heat dissipation of the heating plate. In the process of the shell temperature rising to the same temperature, the heating time of the heating plate is shortened and energy consumption is reduced.

[0018] Before the two electrode sheets drive the heating sheet into the interior of the shell together, the two pull plates are pulled respectively to move the two pull plates away from each other, and then the two pull plates drive the two locking columns into the corresponding spring grooves respectively. At this time, the two springs are in a compressed state. When the two locking grooves opened on the outer wall of the heating sheet correspond to the two spring grooves respectively, the two springs rebound, causing the two locking columns to enter the two locking grooves opened on the outer wall of the heating sheet respectively, thereby fixing the two electrode sheets and the heating sheet inside the shell. Two connecting grooves are opened on the left outer wall of the shell, and two connecting strips are connected to the right outer wall of the shell, so that the two shells can be connected to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an energy-saving PTC heater proposed in the present invention from a first perspective;

[0020] Figure 2 This utility model proposes an energy-saving PTC heater Figure 1 A magnified schematic diagram of the structure in the middle;

[0021] Figure 3 This is a schematic diagram of the shell structure of an energy-saving PTC heater proposed in the utility model;

[0022] Figure 4This is a schematic diagram of the locking column structure of an energy-saving PTC heater proposed in the utility model;

[0023] Figure 5 This is a schematic diagram of the electrode structure of an energy-saving PTC heater proposed in the utility model;

[0024] Figure 6 This is a schematic diagram of the guide groove structure of an energy-saving PTC heater proposed in the utility model;

[0025] Figure 7 This is a schematic diagram of the internal structure of an energy-saving PTC heater proposed in the utility model.

[0026] Legend:

[0027] 1. Shell; 2. Electrode sheet; 3. Limiting strip; 4. Limiting groove; 5. Heat generating plate; 6. Positioning block; 7. Positioning groove; 8. Hollow groove; 9. Guide groove; 10. Fin; 11. Fin groove; 12. Connecting groove; 13. Conductive sheet; 14. Heat dissipation groove; 15. Spring groove; 16. Slide groove; 17. Spring; 18. Locking column; 19. Pull plate; 20. Locking groove; 21. Connecting groove; 22. Connecting strip. DETAILED DESCRIPTION

[0028] Reference Figure 1-7 The utility model provides an energy-saving PTC heater: it includes a shell 1, an electrode sheet 2 is arranged inside the shell 1, and the number of electrode sheets 2 is two, the outer walls of the two electrode sheets 2 are fixedly connected to the limiting strips 3, and the number of limiting strips 3 is two, the inner wall of the shell 1 is provided with a limiting groove 4, and the number of limiting grooves 4 is multiple, the limiting strips 3 are located inside the limiting groove 4, a heating sheet 5 is installed in the middle of the two electrode sheets 2, the outer wall of the heating sheet 5 is fixedly connected with a positioning block 6, and the number of positioning blocks 6 is multiple, the positioning block 6 is located inside the positioning groove 7, a hollow groove 8 is provided inside the heating sheet 5, and guide grooves 9 are provided on both sides of the outer walls of the heating sheet 5, fins 10 are fixedly connected to the outer walls of the two sides of the heating sheet 5, and the number of fins 10 is multiple, fin grooves 11 are provided on both sides of the inner wall of the shell 1, and connecting grooves 12 are provided on the inner walls of the two fin grooves 11, and the number of connecting grooves 12 is multiple, and the right ends of the two electrode sheets 2 are fixedly connected with conductive sheets 13.

[0029] Buckle the two electrode sheets 2 on the upper and lower outer walls of the heating sheet 5 respectively. At this time, the two positioning blocks 6 connected to the upper and lower outer walls of the heating sheet 5 are respectively located inside the positioning grooves 7 opened at both ends of the two electrode sheets 2. Align the two limiting strips 3 connected to the back faces of the two electrode sheets 2 with the limiting grooves 4 opened on the upper and lower inner walls of the shell 1, and insert the two electrode sheets 2 into the interior of the shell 1. When the two electrode sheets 2 and the heating sheet 5 are completely entered into the interior of the shell 1, the multiple fins 10 connected to the outer wall of the heating sheet 5 are located inside the fin grooves 11 opened on the inner wall of the shell 1. The provision of multiple fins 10 can increase the contact area with the air, thereby improving the heat dissipation of the heating sheet 5, making the shell 1 heat up faster, and in the process of the shell 1 temperature rising to the same temperature, the heating time of the heating sheet is shortened and the energy consumption is reduced.

[0030] Multiple fins 10 are respectively located at the edges of the guide groove 9, and multiple fins 10 are respectively located inside the two fin grooves 11. Multiple connecting grooves 12 are respectively connected to the two fin grooves 11. Multiple fins 10 correspond to the positions of the multiple connecting grooves 12, so that part of the heat emitted by the heating plate 5 can be directly discharged through the connecting grooves 12, thereby accelerating the external heating speed. Heat dissipation grooves 14 are opened on the upper and lower surfaces of the outer wall of the shell 1, and there are multiple heat dissipation grooves 14.

[0031] A spring groove 15 is provided on the left side of the inner wall of the shell 1, and there are two spring grooves 15. A slide groove 16 is provided on the left outer wall of the shell 1. The slide groove 16 and the inner walls of the two spring grooves 15 are fixedly connected with a spring 17. The other end of the spring 17 is fixedly connected with a locking column 18. The outer wall of the locking column 18 is fixedly connected with a pull plate 19. The pull plate 19 is located inside the slide groove 16. A locking groove 20 is provided on the left outer wall of the heating plate 5, and there are two locking grooves 20. The other ends of the two locking columns 18 extend to the inside of the two locking grooves 20 respectively.

[0032] Pull the two pull plates 19 respectively to move the two pull plates 19 away from each other, and then the two pull plates 19 respectively drive the two locking columns 18 into the corresponding spring grooves 15. At this time, the two springs 17 are in a compressed state. When the two locking grooves 20 opened on the outer wall of the heating plate 5 respectively correspond to the two spring grooves 15, the two springs 17 rebound, causing the two locking columns 18 to respectively enter the two locking grooves 20 opened on the outer wall of the heating plate 5, thereby fixing the two electrode plates 2 and the heating plate 5 inside the shell 1.

[0033] A connecting groove 21 is provided on the left outer wall of the shell 1, and there are two connecting grooves 21. A connecting bar 22 is fixedly connected to the right outer wall of the shell 1, and there are two connecting bars 22. The two connecting grooves 21 correspond to the positions of the multiple connecting bars 22. The multiple connecting grooves 21 and the multiple connecting bars 22 are all T-shaped, so that the two shells 1 can be connected to each other.

[0034] Working principle: The two electrode sheets 2 are buckled on the upper and lower outer walls of the heating sheet 5 respectively. At this time, the two positioning blocks 6 connected to the upper and lower outer walls of the heating sheet 5 are respectively located inside the positioning grooves 7 opened at both ends of the two electrode sheets 2. The two limit strips 3 connected to the back faces of the two electrode sheets 2 are aligned with the limit grooves 4 opened on the upper and lower inner walls of the shell 1. The two electrode sheets 2 are inserted into the interior of the shell 1. Then, the two pull plates 19 are pulled respectively to move the two pull plates 19 away from each other, and then the two pull plates 19 respectively drive the two locking columns 18 into the corresponding spring grooves 15. At this time, the two springs 17 are in a compressed state. When the two locking grooves 20 opened on the outer wall of the heating sheet 5 correspond to the two spring grooves 15 respectively, the two springs 17 rebound, causing the two locking columns 18 to respectively enter the two locking grooves 20 opened on the outer wall of the heating sheet 5, thereby fixing the two electrode sheets 2 and the heating sheet 5 inside the shell 1. Then, the conductive sheets 13 connected to the right sides of the two electrode sheets 2 are connected to the power supply to energize the electrode sheets 2, so that the heating sheet 5 is energized and generates heat.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An energy-saving PTC heater, comprising a housing (1), characterized in that: An electrode sheet (2) is provided inside the shell (1), and there are two electrode sheets (2). The outer walls of the two electrode sheets (2) are fixedly connected to a limiting strip (3), and there are two limiting strips (3) respectively. A limiting groove (4) is provided on the inner wall of the shell (1), and there are multiple limiting grooves (4). The limiting strip (3) is located inside the limiting groove (4). A heating sheet (5) is installed between the two electrode sheets (2). The outer wall of the heating sheet (5) is fixedly connected to a positioning block (6), and there are multiple positioning blocks (6). The block (6) is located inside the positioning groove (7), a hollow groove (8) is provided inside the heating plate (5), and guide grooves (9) are provided on both sides of the outer wall of the heating plate (5). Fins (10) are fixedly connected to both sides of the outer wall of the heating plate (5), and the number of fins (10) is multiple. Fin grooves (11) are provided on both sides of the inner wall of the shell (1), and the inner walls of the two fin grooves (11) are provided with connecting grooves (12), and the number of connecting grooves (12) is multiple. The right ends of the two electrode plates (2) are fixedly connected to the conductive plates (13).

2. The energy-saving PTC heater according to claim 1, characterized in that: The plurality of fins (10) are respectively located at the edge of the guide groove (9), the plurality of fins (10) are respectively located inside the two fin grooves (11), the plurality of connecting grooves (12) are respectively connected to the two fin grooves (11), and the plurality of fins (10) correspond to the positions of the plurality of connecting grooves (12).

3. The energy-saving PTC heater according to claim 1, characterized in that: Heat dissipation grooves (14) are provided on the upper and lower sides of the outer wall of the housing (1), and there are multiple heat dissipation grooves (14).

4. The energy-saving PTC heater according to claim 1, characterized in that: A spring groove (15) is provided on the left side of the inner wall of the shell (1), and there are two spring grooves (15). A sliding groove (16) is provided on the left outer wall of the shell (1). The sliding groove (16) and the inner walls of the two spring grooves (15) are fixedly connected with a spring (17). The other end of the spring (17) is fixedly connected with a locking column (18). The outer wall of the locking column (18) is fixedly connected with a pull plate (19). The pull plate (19) is located inside the sliding groove (16). A locking groove (20) is provided on the left outer wall of the heating plate (5), and there are two locking grooves (20). The other ends of the two locking columns (18) extend to the inside of the two locking grooves (20) respectively.

5. The energy-saving PTC heater according to claim 1, characterized in that: The left outer wall of the shell (1) is provided with a connecting groove (21), and the number of the connecting grooves (21) is two. The right outer wall of the shell (1) is fixedly connected with a connecting bar (22), and the number of the connecting bar (22) is two.

6. The energy-saving PTC heater according to claim 5, characterized in that: The positions of the two connecting grooves (21) and the plurality of connecting bars (22) correspond to each other, and the plurality of connecting grooves (21) and the plurality of connecting bars (22) are all T-shaped.

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