PTC heater applied to fumigation barrel

Abstract

The utility model provides a PTC (Positive Temperature Coefficient) heater applied to a fumigation barrel, which relates to the technical field of heating equipment and comprises a plurality of PTC heating strips which are arranged in parallel and have the same specification, and a heat conducting metal piece used for fixedly connecting the PTC heating strips, the air blowing module comprises at least two fans and a fan support used for fixing the fans, the fan support is connected with the heating module, and the air outlet direction of the fans is parallel to the height direction of the PTC heating strips. The beneficial effects of the utility model are that the heating module is a PTC heating strip which stably generates heat by using the constant temperature characteristic, and the power line is wrapped by the braid layer to ensure safety and durability; fins, corrugated strips or aluminum plates are adopted as the heat conduction metal pieces so as to increase the heat dissipation area, promote air circulation and efficiently transfer and dissipate heat. A fan of the blowing module is matched with the heating module to realize effective heat exchange; the fan and the bracket are simply and reliably connected and are convenient to disassemble and assemble; the upper cover ventilation opening guides airflow and protects components.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to a PTC heater used in fumigation barrels. Background Technology

[0002] Fumigation, as an important component of external treatment methods in Traditional Chinese Medicine (TCM), boasts a long history and significant therapeutic effects. It involves decocting specific Chinese herbs and then applying the decoction in two ways: directly using it for bathing, and using the resulting steam for fumigation. This involves immersing and fumigating the entire body or specific areas of the skin in a warm state. From the perspective of TCM theory, the body's pores and skin are closely related to the flow of Qi and blood. Fumigation, utilizing the warmth of water and steam, along with the unique effects of the herbs themselves, promotes the opening of pores and improves the flow of Qi and blood. This mechanism gives fumigation various therapeutic effects, such as inducing sweating and reducing fever to dispel dampness; dispelling wind and dampness to alleviate discomfort caused by wind and dampness invasion; warming the meridians and dispelling cold to improve symptoms caused by cold stagnation; unblocking the meridians to help restore their normal function; and even playing a role in weight loss by promoting metabolism and accelerating the breakdown and consumption of body fat.

[0003] However, traditional fumigation barrels have many drawbacks in their heating methods. Currently, most traditional fumigation barrels use electric heating wires to heat hot air or mugwort. During operation, the surface of the heating wire glows red when exposed to high temperatures. If used continuously for extended periods or under poor heat dissipation, the temperature around the heating wire will continuously rise, easily leading to fires and other serious safety accidents, posing a significant threat to the lives and property of users. Furthermore, the insulation of the heating wire is crucial. Inadequate insulation can lead to leakage, damaging the equipment and potentially causing electric shock to users. In addition, the heating wire is prone to oxidation under high temperatures. Oxidation causes changes in the heating wire's resistance, affecting its heating efficiency. Over time, the performance of the heating wire gradually declines, resulting in a relatively short lifespan and requiring frequent replacement, increasing operating costs and maintenance difficulty. Therefore, developing a safer, more efficient, and durable fumigation barrel heating technology is of significant practical importance. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art and provides a PTC heater for use in fumigation barrels. The PTC heating element utilizes constant temperature characteristics to generate heat stably, making it safe, durable, and efficient.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A PTC heater for use in fumigation tanks, comprising:

[0007] The heating module includes several parallel PTC heating strips of the same specifications, and a heat-conducting metal part for fixing and connecting the PTC heating strips;

[0008] The blower module includes at least two fans and a fan bracket for fixing the fans. The fan bracket is connected to the heating module, and the airflow direction of the fans is parallel to the height direction of the PTC heating strip.

[0009] Furthermore, the heat-conducting metal component has one of the following two structures:

[0010] (a) Includes several parallel fins, with heat dissipation channels formed between adjacent fins, and the fins are perpendicular to and fixedly connected to the extension direction of the PTC heating strip;

[0011] (b) Includes a corrugated strip, which is fixedly attached to the side of the PTC heating strip and connects adjacent PTC heating strips into one unit.

[0012] Furthermore, the fan bracket is provided with a threaded hole, and the fan is provided with a through hole at the corresponding position. The fan and the bracket are fixedly connected by fasteners passing through the through hole and the threaded hole in sequence.

[0013] Furthermore, the heating module is provided with a top cover, and the top cover has a vent corresponding to the position of the fan to guide the airflow direction.

[0014] Furthermore, an aluminum plate with a thickness of 1.0 to 40 mm is provided above the heating module, and several heat dissipation holes are provided on the aluminum plate.

[0015] Furthermore, the PTC heating strip is connected to a power cord, which is wrapped with a braided layer.

[0016] Furthermore, the heating module is equipped with a temperature controller, which is electrically connected to the power cord.

[0017] Furthermore, both ends of the heating module are fixed to plastic supports.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The heating module of this utility model uses a PTC heating strip to generate heat stably with constant temperature characteristics, and the power cord is wrapped with a braided layer to ensure safety and durability; the heat-conducting metal parts use fins, corrugated strips or aluminum plates to increase the heat dissipation area, promote air circulation, and efficiently transfer and dissipate heat; the fan of the blower module works with the heating module to achieve effective heat exchange; the connection between the fan and the bracket is simple and reliable, and easy to disassemble and assemble; the ventilation opening on the top cover guides airflow and protects the components. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a top view of the first embodiment of the PTC heater, which adopts a finned structure;

[0022] Figure 2 This is a side view of the first embodiment of the PTC heater;

[0023] Figure 3 This is a top view of the second embodiment of the PTC heater, which adopts a corrugated strip structure;

[0024] Figure 4 This is a schematic diagram of the fan bracket structure;

[0025] Figure 5 This is a schematic diagram of the fan structure;

[0026] Figure 6 This is a schematic diagram of the fan bracket structure;

[0027] Figure 7 This is a top view of the third embodiment of the PTC heater, in which the heating module is provided with a top cover;

[0028] Figure 8 This is a side view of the third embodiment of the PTC heater, in which a top cover is provided above the heating module;

[0029] Figure 9 It is the overall PTC heater Figure 1 ;

[0030] Figure 10 It is the overall PTC heater Figure 2 .

[0031] In the picture:

[0032] 1. PTC heating element; 2. Fins; 3. Corrugated strip; 4. Fan; 401. Through hole; 5. Fan bracket; 501. Threaded hole; 6. Top cover; 601. Vent; 7. Aluminum plate; 701. Heat dissipation hole; 8. Power cord. Detailed Implementation

[0033] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0034] This utility model claims protection for a PTC heater used in a fumigation barrel. The heater mainly consists of a heating module and a blowing module. Through the coordinated work of the two, it provides suitable heat to the fumigation barrel, or heats the mugwort to produce volatile substances to soothe the skin nerves and relieve itching.

[0035] like Figures 1 to 10 As shown, the heating module comprises several parallel PTC heating strips 1 of identical specifications. These PTC heating strips 1 are the core heating elements of the heater, utilizing the constant-temperature heating characteristics of PTC thermistors to stably generate heat after being powered on. The PTC heating strips 1 are connected to a power cord 8, which is wrapped with a braided layer to ensure its safety and durability. The braided layer protects the power cord 8 from wear, scratches, and other damage during use, and also improves its anti-interference capability to a certain extent.

[0036] The thermally conductive metal component is used to fix and connect the PTC heating element 1, and has good thermal conductivity, enabling it to quickly transfer the heat generated by the PTC heating element 1 away. The thermally conductive metal component has the following two specific structures:

[0037] like Figure 1 and Figure 2 As shown, in a first embodiment, the heat-conducting metal component includes several parallel fins 2, with heat dissipation channels formed between adjacent fins 2. These fins 2 are perpendicular to and fixedly connected to the extension direction of the PTC heating strip 1. When the PTC heating strip 1 generates heat, the heat is conducted through the fins 2, increasing the heat dissipation area and allowing the heat to be dissipated more efficiently. Simultaneously, the heat dissipation channels facilitate air circulation, further improving heat dissipation efficiency.

[0038] like Figure 3 As shown, in the second embodiment, the heat-conducting metal component includes a corrugated strip 3, which is fixedly attached to the side of the PTC heating strip 1 and connects adjacent PTC heating strips 1 into one unit. This structure not only enables the fixing of the PTC heating strip 1, but also increases the heat dissipation area through the special shape of the corrugated strip 3, promoting heat transfer and dissipation.

[0039] like Figure 7 as well as Figure 8 As shown, in the second embodiment, an aluminum plate 7 with a thickness of 1.0 to 40 mm is used as a heat-conducting metal component and is placed above the heating module. The aluminum plate 7 has several heat dissipation holes 701. The aluminum plate 7 has good thermal conductivity, which can further and evenly conduct heat, making the heat distribution more uniform. The heat dissipation holes 701 facilitate air circulation, accelerate heat dissipation, and improve the overall heat dissipation effect of the heating module. In this embodiment, the aluminum plate 7 has a thickness of 1.6 mm.

[0040] The air blowing module includes at least two fans 4 and fan brackets 5 for fixing the fans 4. The fan brackets 5 are connected to the heating module, and the airflow direction of the fans 4 is parallel to the height direction of the PTC heating strip 1. This arrangement allows the air blown out by the fans 4 to directly act on the PTC heating strip 1, quickly carrying away heat and forming an effective heat exchange.

[0041] The fan bracket 5 has a threaded hole 501, and the fan 4 has a through hole 401 at the corresponding position. Fasteners (such as bolts, nuts, etc.) are passed through the through hole 401 and the threaded hole 501 in sequence to achieve a fixed connection between the fan 4 and the fan bracket 5. This connection method is simple and reliable, easy to install and disassemble, and can ensure the stability of the fan 4 during operation.

[0042] A top cover 6 is provided above the heating module, and the top cover 6 has a vent 601 corresponding to the position of the fan 4. The function of the vent 601 is to guide the airflow, so that the air blown by the fan 4 can pass through the heating module more orderly, thereby improving the heat exchange efficiency. At the same time, the top cover 6 can also protect the heating module and the air blowing module to a certain extent, preventing foreign objects from entering and affecting the normal operation of the heater.

[0043] The heating module is equipped with a thermostat, which is electrically connected to the power cord. It monitors changes in ambient temperature and takes measures when the temperature exceeds the safe range. When the temperature reaches the operating temperature of the heating element, the bimetallic element of the thermostat generates internal stress and actuates rapidly, pushing the moving contact to open the contact and cut off the circuit. This controls the temperature and prevents safety accidents caused by overheating, such as burning out the heating element or resulting in a fire.

[0044] In addition, the two ends of the heating module are fixed on plastic supports, which can be used to fix it to the fumigation barrel. The plastic supports have an insulating effect.

[0045] When the PTC heater is used in a fumigation barrel, the power cord 8 of the PTC heating element 1 is first connected, and the PTC heating element 1 begins to heat up. Simultaneously, the fan 4 is activated, and the air blown by the fan 4 flows parallel to the height of the PTC heating element 1. Passing through the heat-conducting metal parts and aluminum plate 7, the air carries away the heat generated by the PTC heating element 1, forming hot air. This hot air enters the fumigation barrel through the ventilation opening 601 of the upper cover 6, providing the necessary heat to achieve the fumigation function. Throughout the operation, the aluminum plate 7 and the heat dissipation holes 701 contribute to the even distribution and rapid dissipation of heat, ensuring the efficient and stable operation of the heater.

[0046] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PTC heater for use in fumigation barrels, characterized in that, include: The heating module includes several parallel PTC heating strips of the same specifications, and a heat-conducting metal part for fixing and connecting the PTC heating strips; The blower module includes at least two fans and a fan bracket for fixing the fans. The fan bracket is connected to the heating module, and the airflow direction of the fans is parallel to the height direction of the PTC heating strip.

2. A PTC heater for use in a fumigation tank according to claim 1, characterized in that, The heat-conducting metal component has one of the following two structures: (a) Includes several parallel fins, with heat dissipation channels formed between adjacent fins, and the fins are perpendicular to and fixedly connected to the extension direction of the PTC heating strip; (b) Includes a corrugated strip, which is fixedly attached to the side of the PTC heating strip and connects adjacent PTC heating strips into one unit.

3. A PTC heater for use in a fumigation tank according to claim 2, characterized in that, The fan bracket is provided with a threaded hole, and the fan is provided with a through hole at the corresponding position. The fan and the bracket are fixedly connected by fasteners passing through the through hole and the threaded hole in sequence.

4. A PTC heater for use in a fumigation tank according to claim 3, characterized in that, The heating module is provided with a top cover, and the top cover has a vent corresponding to the position of the fan to guide the airflow.

5. A PTC heater for use in a fumigation tank according to claim 1, characterized in that, Above the heating module is an aluminum plate with a thickness of 1.0 to 40 mm, and the aluminum plate has several heat dissipation holes.

6. A PTC heater for use in a fumigation tank according to claim 1, characterized in that, The PTC heating strip is connected to a power cord, which is wrapped with a braided layer.

7. A PTC heater for use in a fumigation tank according to claim 6, characterized in that, The heating module is equipped with a temperature controller, which is electrically connected to the power cord.

8. A PTC heater for use in a fumigation tank according to claim 1, characterized in that, The two ends of the heating module are fixed on plastic supports.

Images