Heater energy-saving device based on PTC ceramic technology

Abstract

The utility model relates to the technical field of heaters, and discloses a heater energy-saving device based on a PTC ceramic technology, which solves the problem of poor energy-saving effect of the existing heater, and comprises a PTC heater body and a flow-equalizing air inlet cover connected to the air inlet side of the PTC heater body, the PTC heater body is composed of a heat insulation shell, a PTC heating assembly and three wiring boards, the PTC heating assembly is connected to the interior of the heat insulation shell, the three wiring boards are all connected to one end of the PTC heating assembly, the PTC heating assembly is composed of a plurality of heat conduction copper plates, four wave-shaped aluminum cooling fins and a plurality of PTC ceramic heating sheets, and the heat conduction copper plates are arranged in the heat insulation shell. The outer surfaces of the four wave-shaped aluminum cooling fins are all provided with graphene coatings. The flow-equalizing air inlet cover is composed of an air inlet cover body, three inner partition plates and a plurality of air inlet fans. By means of the device, the good energy-saving effect can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of heater technology, specifically an energy-saving device for heaters based on PTC ceramic technology. Background Technology

[0002] The resistivity of PTC ceramic materials increases exponentially with temperature. When the temperature reaches a preset threshold (such as the Curie temperature), the resistance increases sharply, causing the heating power to automatically decrease, thus achieving constant temperature control. This characteristic reduces ineffective energy consumption and avoids energy waste caused by continuous heating in traditional heaters. Therefore, PTC ceramic heaters themselves have energy-saving effects. PTC ceramic heaters usually require a fan to achieve the heating function. The existing fan settings of PTC ceramic heaters need to be optimized, and how to utilize the air supply structure to achieve further energy savings needs to be solved. Therefore, this application proposes an energy-saving device for heaters based on PTC ceramic technology. Utility Model Content

[0003] In view of the above situation and to overcome the shortcomings of the existing technology, this utility model provides an energy-saving device for heaters based on PTC ceramic technology, which effectively solves the problem of poor energy-saving effect of existing heaters.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving device for a heater based on PTC ceramic technology, comprising a PTC heater body and a flow equalization air inlet hood. The flow equalization air inlet hood is fixedly connected to the air inlet side of the PTC heater body. The PTC heater body consists of a heat insulation shell, a PTC heating component, and three terminal blocks. The PTC heating component is fixedly connected inside the heat insulation shell, and the three terminal blocks are all fixedly connected to one end of the PTC heating component and pass through the heat insulation shell.

[0005] The PTC heating assembly consists of several thermally conductive copper plates, four corrugated aluminum heat sinks, and several PTC ceramic heating elements. The thermally conductive copper plates, corrugated aluminum heat sinks, and PTC ceramic heating elements are combined to form an integrated structure. The three thermally conductive copper plates are fixedly connected to three terminal blocks respectively. The outer surface of the four corrugated aluminum heat sinks is coated with graphene.

[0006] The airflow equalization shroud consists of an air inlet shroud body, three inner partitions, and several air intake fans. The air inlet shroud body is fixedly connected to one side of the heat insulation shell. The three inner partitions are all fixedly connected to one end inside the air inlet shroud body. The three inner partitions and the inner sidewall of the air inlet shroud body form four air intake chambers. The four air intake chambers correspond one-to-one with four corrugated aluminum heat sinks. The air intake fans are fixedly connected to the end of the air inlet shroud body away from the inner partitions.

[0007] Preferably, a metal mesh plate and an air intake filter plate are provided at the end of the air intake hood that is away from the PTC heater body.

[0008] Preferably, the corrugated aluminum heat sink has a bent structure, the contact area between the corrugated aluminum heat sink and the heat-conducting copper plate is ground to form a flat contact surface, and the corrugated aluminum heat sink and the heat-conducting copper plate are brazed together.

[0009] Preferably, the side of the wavy aluminum heat sink near the airflow inlet shroud is polished to form a symmetrical chamfered surface one and a chamfered surface two.

[0010] Preferably, the heat-insulating outer shell is composed of a metal shell and a porous ceramic inner layer, with the porous ceramic inner layer fixedly connected to the inner surface of the metal shell.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) In operation, by setting up a PTC heating component consisting of several thermally conductive copper plates, four corrugated aluminum heat sinks and several PTC ceramic heating elements, the resistance effect of the PTC ceramic heating elements can be used to achieve automatic energy saving. By setting up a graphene coating, the thermal radiation effect can be increased, thereby improving the thermal diffusion efficiency and further improving the energy saving effect.

[0013] (2) By setting up a uniform air intake shroud consisting of an air intake shroud, three inner partitions and several air intake fans, and setting up four air intake chambers corresponding to four wavy aluminum heat sinks, the uniformity of air intake can be improved, so that the air intake can pass through the wavy aluminum heat sinks evenly and completely, so that the heat can be carried out evenly and blown out, avoiding the increase in power consumption of PTC heating components due to uneven heat distribution. By setting up a metal mesh plate and an air intake filter plate, the air intake can be filtered to prevent the air intake from carrying dust into the interior of the PTC heating components and affecting heat dissipation.

[0014] (3) By grinding the joint between the wavy aluminum heat sink and the heat-conducting copper plate to form a flat contact surface, the stability of the connection position can be improved, the resistance can be reduced, and thus the energy-saving effect can be achieved. By setting chamfer surface one and chamfer surface two, the wind resistance can be reduced, so that the air intake can pass through the wavy aluminum heat sink efficiently, further improving the energy-saving effect. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the energy-saving device for a heater based on PTC ceramic technology according to this utility model;

[0018] Figure 2This is a schematic diagram of the PTC heater body structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the PTC heating assembly structure of this utility model;

[0020] Figure 4 This is a partial structural diagram of the wavy aluminum heat sink of this utility model;

[0021] Figure 5 This is a schematic diagram of the flow equalization air inlet hood structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the heat insulation shell structure of this utility model;

[0023] In the diagram: 1. PTC heater body; 2. Airflow equalization shroud; 3. Heat insulation shell; 4. PTC heating assembly; 5. Terminal block; 6. Thermally conductive copper plate; 7. Corrugated aluminum heat sink; 8. PTC ceramic heating element; 9. Air inlet shroud; 10. Inner partition; 11. Air inlet fan; 12. Air inlet chamber; 13. Metal mesh plate; 14. Air inlet filter plate; 15. Graphene coating; 16. Flat contact surface; 17. Chamfered surface one; 18. Chamfered surface two; 19. Metal shell; 20. Porous ceramic inner layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Depend on Figures 1 to 6 The present invention provides an energy-saving device for a PTC ceramic heater, comprising a PTC heater body 1 and a flow equalization air inlet hood 2. The flow equalization air inlet hood 2 is fixedly connected to the air inlet side of the PTC heater body 1. The PTC heater body 1 consists of a heat insulation shell 3, a PTC heating component 4, and three terminal blocks 5. The PTC heating component 4 is fixedly connected to the inside of the heat insulation shell 3. The three terminal blocks 5 are all fixedly connected to one end of the PTC heating component 4 and pass through the heat insulation shell 3.

[0026] The heat-insulating shell 3 can prevent heat loss, thus achieving energy saving. The terminal block 5 can be connected to an external power source to heat the PTC heating component 4.

[0027] The PTC heating assembly 4 consists of several thermally conductive copper plates 6, four corrugated aluminum heat sinks 7, and several PTC ceramic heating elements 8. The thermally conductive copper plates 6, corrugated aluminum heat sinks 7, and PTC ceramic heating elements 8 are combined to form an integrated structure. The three thermally conductive copper plates 6 are fixedly connected to three wiring boards 5 respectively. The outer surface of the four corrugated aluminum heat sinks 7 is provided with a graphene coating 15.

[0028] The resistance of the PTC ceramic heating element 8 increases exponentially with temperature. When the temperature reaches a preset threshold (such as the Curie temperature), the resistance increases sharply, causing the heating power to decrease automatically, thus achieving constant temperature control and energy saving. The graphene coating 15 can improve thermal radiation efficiency, thereby improving heating efficiency.

[0029] The airflow equalization shroud 2 consists of an air inlet shroud body 9, three inner partitions 10, and several air intake fans 11. The air inlet shroud body 9 is fixedly connected to one side of the heat insulation shell 3. The three inner partitions 10 are all fixedly connected to one end inside the air inlet shroud body 9. The three inner partitions 10 and the inner sidewall of the air inlet shroud body 9 form four air intake chambers 12. The four air intake chambers 12 correspond one-to-one with four corrugated aluminum heat sinks 7. The air intake fans 11 are fixedly connected to the end inside the air inlet shroud body 9 away from the inner partitions 10.

[0030] The intake fan 11 brings in air, and the three inner baffles 10 divide the air into four paths. The air is then blown evenly to the four wavy aluminum heat sinks 7 through the four intake chambers 12, which can dissipate heat evenly and avoid uneven heat distribution on the four wavy aluminum heat sinks 7, thus increasing energy consumption and achieving energy saving.

[0031] The air inlet cover 9 has a metal mesh plate 13 and an air inlet filter plate 14 at the end away from the PTC heater body 1. These can filter the air inlet and prevent dust from adhering to the outer surface of the corrugated aluminum heat sink 7, thus increasing energy consumption.

[0032] The wavy aluminum heat sink 7 has a bent structure. The contact area between the wavy aluminum heat sink 7 and the heat-conducting copper plate 6 is polished to form a flat contact surface 16. The wavy aluminum heat sink 7 and the heat-conducting copper plate 6 are brazed together, which can improve the stability of the connection, avoid the increase of resistance, and thus achieve energy saving effect.

[0033] The wavy aluminum heat sink 7 has two chamfered surfaces, one 17 and the other 18, polished on the side near the airflow equalization shroud 2 to form a symmetrical structure. This reduces wind resistance and allows the incoming air to pass through the wavy aluminum heat sink 7 quickly, improving the uniformity of heat dissipation.

[0034] The heat insulation shell 3 is composed of a metal shell 19 and a porous ceramic inner layer 20. The porous ceramic inner layer 20 is fixedly connected to the inner surface of the metal shell 19, which can play a heat insulation role and reduce heat loss.

[0035] In operation, by setting up a PTC heating assembly consisting of several thermally conductive copper plates, four corrugated aluminum heat sinks, and several PTC ceramic heating elements, automatic energy saving can be achieved by utilizing the resistance effect of the PTC ceramic heating elements. The addition of a graphene coating increases the thermal radiation effect, thereby improving heat diffusion efficiency and further enhancing energy saving. Furthermore, by setting up a flow-equalizing air inlet shroud consisting of an air inlet cover, three inner partitions, and several air inlet fans, and by setting up four air inlet chambers corresponding one-to-one with the four corrugated aluminum heat sinks, the uniformity of air intake can be improved, allowing the air to pass evenly and comprehensively through the corrugated aluminum heat sinks. The wavy aluminum heat sink ensures even heat distribution, preventing uneven heat distribution from increasing the power consumption of the PTC heating element. A metal mesh plate and air intake filter filter prevent dust from entering the PTC heating element and affecting heat dissipation. Polishing the joint between the wavy aluminum heat sink and the thermally conductive copper plate creates a flat contact surface, improving connection stability, reducing resistance, and thus saving energy. Chamfered surfaces one and two further reduce air resistance, allowing efficient airflow through the wavy aluminum heat sink and further enhancing energy efficiency.

Claims

1. Energy saving device for PTC ceramic technology heater, comprising PTC heater body (1) and current sharing air inlet cover (2), characterized in that: The equalization air inlet shroud (2) is fixedly connected to the air inlet side of the PTC heater body (1). The PTC heater body (1) consists of a heat insulation shell (3), a PTC heating component (4) and three terminal blocks (5). The PTC heating component (4) is fixedly connected to the inside of the heat insulation shell (3). The three terminal blocks (5) are all fixedly connected to one end of the PTC heating component (4) and pass through the heat insulation shell (3). The PTC heating assembly (4) consists of several thermally conductive copper plates (6), four corrugated aluminum heat sinks (7) and several PTC ceramic heating elements (8). The thermally conductive copper plates (6), corrugated aluminum heat sinks (7) and PTC ceramic heating elements (8) are combined to form an integrated structure. Three thermally conductive copper plates (6) are fixedly connected to three wiring boards (5) respectively. The outer surfaces of the four corrugated aluminum heat sinks (7) are all coated with graphene (15). The equal flow air intake shroud (2) consists of an air intake shroud body (9), three inner partitions (10) and several air intake fans (11). The air intake shroud body (9) is fixedly connected to one side of the heat insulation shell (3). The three inner partitions (10) are all fixedly connected to one end inside the air intake shroud body (9). Four air intake chambers (12) are formed between the three inner partitions (10) and the inner sidewall of the air intake shroud body (9). The four air intake chambers (12) correspond one-to-one with the four corrugated aluminum heat sinks (7). The air intake fans (11) are fixedly connected to one end inside the air intake shroud body (9) away from the inner partitions (10).

2. The PTC ceramic technology based heater energy saving device according to claim 1, characterized in that: The air inlet hood (9) has a metal mesh plate (13) and an air inlet filter plate (14) at the end away from the PTC heater body (1).

3. The PTC ceramic technology based heater energy saving device according to claim 1, characterized in that: The wavy aluminum heat sink (7) is a bent structure. The contact area between the wavy aluminum heat sink (7) and the heat-conducting copper plate (6) is polished to form a flat contact surface (16). The wavy aluminum heat sink (7) and the heat-conducting copper plate (6) are brazed together.

4. The energy-saving device for a heater based on PTC ceramic technology according to claim 1, characterized in that: The wavy aluminum heat sink (7) is polished on the side near the airflow equalization shroud (2) to form a symmetrical chamfered surface one (17) and chamfered surface two (18).

5. The energy-saving device for a heater based on PTC ceramic technology according to claim 1, characterized in that: The heat insulation shell (3) is composed of a metal shell (19) and a porous ceramic inner layer (20), with the porous ceramic inner layer (20) fixedly connected to the inner surface of the metal shell (19).

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