Alternating current PTC air heater

Abstract

The utility model discloses an air heater belongs to heavy machinery technical field, specifically relates to an alternating current PTC air heater, include: PTC heating assembly, box, temperature switch, over coil, electrical board subassembly and fan, PTC heating assembly fixed mounting in the box, temperature switch is through bolt fixed on the box and temperature switch outgoing line passes over coil, electrical board subassembly fixed mounting in the box one side, fan fixed mounting in the box, the box is by left side board subassembly, grid plate, bottom plate, right side board subassembly, right cover plate and mounting plate, the utility model discloses through temperature sensor control heating temperature, simple structure, is convenient for maintenance, and high security, and its principle is that PTC resistivity increases with temperature rise, avoids the risk of overheating, has the advantages of higher efficiency, safer, more convenient installation and durable.

Description

Technical Field

[0001] This utility model discloses an air heater, belonging to the field of heavy machinery technology, specifically relating to an AC PTC air heater. Background Technology

[0002] Air heaters are mainly used in heavy machinery to ensure smooth equipment startup in low-temperature environments and prevent mechanical jamming caused by oil solidification. Most air heaters on the market currently use alloy heating resistance wires as heating elements, and current passes through the alloy resistance wires to generate heat.

[0003] Existing air heaters have low thermal efficiency, and resistance heating consumes a lot of energy. Furthermore, they use alloy resistance wire as the heating element and lack temperature control components; improper use may result in excessively long heating times and excessively high temperatures, posing safety hazards. Utility Model Content

[0004] Purpose of this utility model: To provide an AC PTC air heater that solves the problems mentioned above, such as the low thermal efficiency of existing air heaters and the high energy consumption of resistance heating. Furthermore, the use of alloy resistance wire as the heating element lacks a temperature control element, which may lead to excessively long heating times and excessively high temperatures if used improperly, posing safety hazards.

[0005] Technical solution: An AC PTC air heater, comprising: a PTC heating element, a housing, a temperature switch, a coil, an electrical board assembly, and a fan;

[0006] The PTC heating element is fixedly installed inside the housing. The temperature switch is fixed to the housing by bolts and the output wire of the temperature switch passes through the coil. The electrical board assembly is fixedly installed on one side of the housing. The fan is fixedly installed inside the housing.

[0007] The enclosure consists of a left side panel assembly, a mesh panel, a bottom plate, a right side panel assembly, a right cover plate, and a mounting plate.

[0008] In a further embodiment, the base plate comprises upper and lower parts, and the grid plate comprises front and rear parts;

[0009] The right cover plate is fixedly installed on the right side plate assembly by bolts. The left side plate assembly and the right side plate assembly are fixedly connected to the upper and lower base plates by bolts. The mounting plate is fixedly connected to the side of the left side plate assembly, the upper and lower base plates and the right side plate assembly by bolts. The front and rear mesh plates are fixedly connected to the side of the left side plate assembly, the upper and lower base plates and the right side plate assembly by bolts.

[0010] In a further embodiment, there are six PTC heating components arranged in three layers. The two ends of the PTC heating components are bolted to the left side panel assembly and the right side panel assembly of the housing via mounting bracket one and mounting bracket two.

[0011] In a further embodiment, the electrical board assembly is fixedly mounted to the left side panel assembly by bolts and has an external cover, which is mounted to the electrical board assembly by bolts.

[0012] In a further embodiment, the fan is provided with two parts that are fixedly mounted to the mounting plate by bolts.

[0013] In a further embodiment, the temperature switch is fixedly mounted to the right side plate assembly by bolts.

[0014] Beneficial effects: This utility model uses PTC material as the heating medium and controls the heating temperature through a temperature sensor. It has a simple structure, is easy to maintain, and has high safety. Its principle is that the resistivity of PTC increases with the increase of temperature, thus avoiding the risk of overheating.

[0015] This invention can raise the ambient temperature from -41℃ to 20℃ in a 10-cubic-meter constant temperature chamber at a continuous low temperature of -41℃ in just 10 to 15 minutes, resulting in higher heating efficiency.

[0016] This utility model is made of materials resistant to high and low temperatures of -41℃ to 85℃, and has passed various environmental and life tests. It is more efficient, safer, easier to install, and more durable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the heater from the front.

[0018] Figure 2 for Figure 1 Sectional view of AA;

[0019] Figure 3 This is a schematic diagram of a heater explosion.

[0020] Figure 4 for Figure 1 View from direction B in the middle.

[0021] Reference numerals: 1. Heating component; 2. Temperature switch; 3. Coil; 4. Mounting bracket one; 5. Mounting bracket two; 6. Cover; 7. Electrical board assembly; 8. Left side panel assembly; 9. Mesh plate; 10. Base plate; 11. Right side panel assembly; 12. Right cover plate; 13. Mounting plate; 14. Fan. Detailed Implementation

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

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] An AC PTC air heater includes: a heating component 1, a temperature switch 2, a coil 3, a mounting bracket 1 4, a mounting bracket 2 5, a housing 6, an electrical board assembly 7, a left side panel assembly 8, a mesh plate 9, a base plate 10, a right side panel assembly 11, a right cover plate 12, a mounting plate 13, and a fan 14.

[0026] In one embodiment, the PTC heating element 1 is the electrically powered heating component of this utility model, consisting of six parts arranged in three layers. The two ends of the PTC heating element 1 are bolted together by mounting brackets 4 and 5. The temperature switch 2 is bolted to the right side plate assembly 11, and its output wire passes through the coil 3. The cover 6 is bolted to the electrical board assembly 7. The electrical board assembly 7 is bolted to the left side plate assembly 8. The right cover 12 is bolted to the right side plate assembly 11. The left side plate assembly 8 and the right side plate assembly 11 are bolted to the upper and lower base plates 10. Two fans 14 are bolted to the fan mounting plate 13 and secured with M4 bolts. The fan mounting plate 13 is bolted to the side of the left side plate assembly 8, the two base plates 10, and the right side plate assembly 11. Two mesh plates 9 are bolted to the side of the left side plate assembly 8, the two base plates 10, and the right side plate assembly 11.

[0027] Installation and operation of this utility model:

[0028] The installation method of this utility model has 4-M10x1.5 welded nuts at the bottom, which can be used to install and fix it with M10x1.5 bolts.

[0029] When the PTC heating element 1 is powered on, the fan 14 blows air from the rear end of the heater to the front end, distributing heat to the surrounding air. When the temperature sensor detects that the current ambient temperature is lower than the sensor's set value, the PTC heating element 1 starts heating. When the ambient temperature is higher than the set value, the PTC heating element 1 automatically stops heating, and the fan 14 stops after a set delay.

[0030] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An AC PTC air heater, characterized in that, include: PTC heating elements, housing, temperature switch, coil, electrical board assembly, and fan; The PTC heating element is fixedly installed inside the housing. The temperature switch is fixed to the housing by bolts and the output wire of the temperature switch passes through the coil. The electrical board assembly is fixedly installed on one side of the housing. The fan is fixedly installed inside the housing. The enclosure consists of a left side panel assembly, a mesh panel, a bottom plate, a right side panel assembly, a right cover plate, and a mounting plate.

2. The AC PTC air heater according to claim 1, characterized in that, The base plate comprises two parts, upper and lower, and the grid plate comprises two parts, front and back. The right cover plate is fixedly installed on the right side plate assembly by bolts. The left side plate assembly and the right side plate assembly are fixedly connected to the upper and lower base plates by bolts. The mounting plate is fixedly connected to the side of the left side plate assembly, the upper and lower base plates and the right side plate assembly by bolts. The front and rear mesh plates are fixedly connected to the side of the left side plate assembly, the upper and lower base plates and the right side plate assembly by bolts.

3. The AC PTC air heater according to claim 1, characterized in that, The PTC heating components are provided in six layers, and the two ends of the PTC heating components are fixed to the left side panel assembly and the right side panel assembly of the housing by bolts through mounting bracket one and mounting bracket two.

4. The AC PTC air heater according to claim 1, characterized in that, The electrical board assembly is fixedly mounted to the left side panel assembly by bolts and has an external cover, which is mounted to the electrical board assembly by bolts.

5. The AC PTC air heater according to claim 1, characterized in that, The fan has two parts that are fixedly mounted on the mounting plate by bolts.

6. The AC PTC air heater according to claim 1, characterized in that, The temperature switch is fixedly mounted on the right side plate assembly by bolts.

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