Heating mechanism of fan heater

Abstract

The utility model relates to the technical field of warm air blowers, and discloses a warm air blower heating mechanism which comprises a fixing assembly and a side installation plate arranged on the fixing assembly, and the bottom of an inner cavity of the fixing assembly is provided with a guide plate and connected with a heating sheet belt. The front face of the connecting plate is movably connected with a guide rod, the outer end of the connecting plate is connected with an outer connecting plate, and the guide rod is sleeved with a first extrusion spring; the two sides of the guide column are sleeved with sliding blocks, and the center of the guide column is sleeved with a second extrusion spring. According to the heating mechanism of the fan heater, after the heating sheet belt is mounted on the side mounting plate and the guide plate, the first extrusion spring drives the side mounting plate to move outwards through the guide rod and the connecting plate, and the second extrusion spring drives the side mounting plate to move outwards along the surface of the guide column through the sliding block, so that the side mounting plate drives the heating sheet belt to move; and the tension degree of the heating sheet belt is adjusted. And the first extrusion spring and the second extrusion spring can change along with the change of the tension degree of the heating sheet belt.

Description

Technical Field

[0001] The utility model relates to the technical field of air heaters, in particular to a heating mechanism of an air heater. Background Art

[0002] A fan heater is a device that produces warm air by heating air. It is widely used in homes, offices, shopping malls, hotels, restaurants, factories, warehouses, construction sites, greenhouses, farms, and other places. A fan heater primarily consists of a ventilator, an electric motor, and an air heater. Powered by the ventilator, air enters the unit through the air intake, is heated as it passes through the air heater, and then flows out through the air outlet, entering the heated space and circulating the indoor air. The heating mechanism is the core component of the fan heater, primarily responsible for converting electrical energy or other forms of energy into heat energy and blowing the hot air out through the fan.

[0003] The heating mechanism of a typical fan heater typically consists of a heating element, a heating frame, a mounting plate, a heating strip, and a tensioning assembly. The heating element converts electrical energy into heat, while the heating frame supports and secures the element and mounting plate. The mounting plate is wrapped with multiple layers of heating strips, and the tensioning assembly adjusts the tension of the strips.

[0004] In a traditional heating mechanism of a heater, the tension of the heater belt is usually set during the manufacturing process, so that the tension of the heater belt cannot be adjusted during use. When the heater is used in different environments or working conditions, the optimal tension of the heater belt will be different. The tension cannot be adjusted in time, so that the heater cannot adapt to the changes, resulting in a loss of heating efficiency or performance. To solve the above problem, some heater heating mechanisms are provided with fasteners, such as bolts and nuts, and the tension of the heater belt is directly adjusted by rotating the fasteners, thereby adjusting the tension of the heater belt in time to avoid a loss of heating efficiency or performance. However, in this method, although the bolts and nuts can provide a certain degree of adjustment function, the adjustment accuracy of the bolts and nuts on the heater belt is affected by factors such as operation and tool accuracy, making it difficult to achieve accurate tension each time the adjustment is made, and being too tight or too loose will have an adverse effect on the performance and life of the heater. For this reason, a heater heating mechanism is proposed. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a heating mechanism for a heater to solve the technical problem that the heating fins of the heater cannot be adjusted to achieve precise tension, which adversely affects the performance and life of the heater.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heating mechanism of a heater, comprising:

[0009] A fixing assembly, and side mounting plates arranged on both sides of the bottom of the inner cavity of the fixing assembly, and guide plates are evenly installed at the center of the bottom of the inner cavity of the fixing assembly, and a heating sheet is connected between the side mounting plates and the guide plates;

[0010] A connecting plate is provided at the front and rear ends of the outer sides of the side mounting plate, and a guide rod is movably connected to the front of the connecting plate. The outer end of the guide rod is connected to the outer connecting plate, and a first extrusion spring is sleeved on the surface of the guide rod;

[0011] The guide post is disposed at the center of the front and back sides of the inner cavity of the fixed assembly, and the guide post is provided with sliding blocks on both sides and connected to the side mounting plate. The center of the guide post is provided with a second extrusion spring and is tightly fitted with the sliding blocks. After the heating fin strip is mounted on the side mounting plate and the guide plate, the first extrusion spring drives the side mounting plate to move outward via the guide rod and the connecting plate, while the second extrusion spring drives the side mounting plate to move outward along the surface of the guide post via the sliding block, so that the side mounting plate drives the heating fin strip to move and adjust the tension of the heating fin strip. On the one hand, when the tension of the heating fin strip changes after long-term use, the heating fin strip can drive the guide rod and the sliding block to move, thereby moving the first extrusion spring and the second extrusion spring. The first extrusion spring and the second extrusion spring can change with the tension of the heating fin strip, thereby adjusting the tension of the heating fin strip in a timely manner and achieving a precise tension. On the other hand, the guide rod and the sliding block ensure that the side mounting plate can move horizontally, preventing the side mounting plate from causing the heating fin strip to deviate, which would adversely affect the performance and life of the heater.

[0012] Preferably, the outer end of the guide rod extends outward through the inner wall of the fixed assembly, and the two ends of the first extrusion spring are respectively tightly fitted with the fixed assembly and the outer connecting plate. The first extrusion spring drives the guide rod to move outward on the fixed assembly through the outer connecting plate.

[0013] Preferably, the fixing assembly is composed of a bottom connecting plate, a front connecting plate, and a side connecting plate, wherein the front connecting plate is located on the front and back sides of the bottom connecting plate, and the side connecting plates are located on both sides of the bottom connecting plate. The bottom connecting plate, the front connecting plate, and the side connecting plate assembly can provide support and fixation for structures such as the guide plate.

[0014] Preferably, positioning blocks are installed at the front and rear ends of both sides of the bottom connecting plate, and the positioning blocks are generally square in design. Limiting plates are installed at the upper center positions of both sides of the front connecting plate. The bottom connecting plate is connected to the corresponding structure through the positioning blocks, while the front connecting plate is connected to the corresponding structure through the limiting plates.

[0015] Preferably, the front and rear ends of the upper inner side surfaces of the side connecting plates are provided with limit slots corresponding to the limit plates, and the front and rear ends of the lower outer side surfaces of the side connecting plates are provided with positioning slots corresponding to the positioning blocks. When the side connecting plates are connected to the bottom connecting plates, the positioning blocks are inserted into the positioning slots, and when the side connecting plates are connected to the front connecting plates, the limit plates are inserted into the limit slots for connection.

[0016] Preferably, a guide shaft is inserted and connected at the center of the front and rear ends of the top of the side connecting plate, and a limit hole is provided on both sides of the center of the front and rear ends of the top of the side connecting plate. A limit side block is installed on the front and back sides of the upper part of the guide shaft and corresponds to the limit hole, and a positioning head is installed at the bottom of the guide shaft and corresponds to the positioning block. The center of the guide shaft is sleeved with a return spring and fits tightly with the limit side block and the positioning head respectively. When the positioning block is inserted into the interior of the positioning groove, the guide shaft descends along the inner cavity of the side connecting plate under the drive of the return spring, and the positioning head is inserted into the interior of the positioning block for connection. The guide shaft is then rotated so that the limit side block is misaligned with the limit hole, and the limit side block is tightly fitted with the interior of the side connecting plate under the drive of the return spring. This not only ensures the stability of the connection between the bottom connecting plate, the front connecting plate and the side connecting plate, but also facilitates disassembly and assembly.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a heating mechanism for a heater, which has the following beneficial effects:

[0019] The heating mechanism of the air heater is such that after the heating fin is mounted on the side mounting plate and the guide plate, the first extrusion spring drives the side mounting plate to move outward through the guide rod and the connecting plate, and at the same time, the second extrusion spring drives the side mounting plate to move outward along the surface of the guide column through the sliding block, so that the side mounting plate drives the heating fin to move and adjusts the tension of the heating fin. When the tension of the heating fin changes after long-term use, the heating fin can drive the guide rod and the sliding block to move, and move the first extrusion spring and the second extrusion spring, and the first extrusion spring and the second extrusion spring can change with the tension of the heating fin, so that the tension of the heating fin can be adjusted in time and achieve precise tension. When the guide rod and the sliding block can ensure the translation of the side mounting plate, the side mounting plate can be prevented from causing the heating fin to deviate, which would adversely affect the performance and life of the air heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of a partial cross-sectional structure of a fixing component of the present invention;

[0022] Figure 3 This is a schematic diagram of the separation structure of the fixed components of the utility model;

[0023] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the side connecting plate of the present utility model.

[0024] In the figure: 1. Fixed assembly; 2. Side mounting plate; 3. Guide plate; 4. Heating plate; 5. Connecting plate; 6. Guide rod; 7. External connecting plate; 8. First extrusion spring; 9. Guide column; 10. Sliding block; 11. Second extrusion spring; 12. Bottom connecting plate; 13. Main connecting plate; 14. Side connecting plate; 15. Positioning block; 16. Limiting plate; 17. Limiting groove; 18. Positioning groove; 19. Guide shaft; 20. Limiting hole; 21. Limiting side block; 22. Reset spring; 23. Positioning head. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The utility model provides a technical solution, a heating mechanism of a heater, comprising: Figure 1 , a fixing component 1, and side mounting plates 2 arranged on both sides of the bottom of the inner cavity of the fixing component 1, and guide plates 3 are evenly installed at the center of the bottom of the inner cavity of the fixing component 1, and a heating plate belt 4 is connected between the side mounting plate 2 and the guide plate 3;

[0027] See also Figure 2 , connecting plate 5, is arranged at the front and rear ends of the outer side of the side mounting plate 2, and the front of the connecting plate 5 is movably connected to a guide rod 6, the outer end of the guide rod 6 is connected to an outer connecting plate 7, and a first extrusion spring 8 is sleeved on the surface of the guide rod 6;

[0028] The guide column 9 is arranged at the center of the front and back sides of the inner cavity of the fixed component 1, and the two sides of the guide column 9 are sleeved with sliding blocks 10 and connected to the side mounting plate 2. The center of the guide column 9 is sleeved with a second extrusion spring 11 and fits tightly with the sliding block 10. After the heating sheet 4 is installed on the side mounting plate 2 and the guide plate 3, the first extrusion spring 8 drives the side mounting plate 2 to move outward through the guide rod 6 and the connecting plate 5. At the same time, the second extrusion spring 11 drives the side mounting plate 2 to move outward along the surface of the guide column 9 through the sliding block 10, so that the side mounting plate 2 drives the heating sheet 4 to move and adjusts the tension of the heating sheet 4. On the one hand, when the tension of the heating sheet belt 4 changes after long-term use, the heating sheet belt 4 can drive the guide rod 6 and the sliding block 10 to move, and move the first extrusion spring 8 and the second extrusion spring 11. The first extrusion spring 8 and the second extrusion spring 11 can change with the tension of the heating sheet belt 4, so that the tension of the heating sheet belt 4 can be adjusted in time and achieve precise tension; on the other hand, the guide rod 6 and the sliding block 10 can ensure the translation of the side mounting plate 2, and avoid the side mounting plate 2 driving the heating sheet belt 4 to deviate, which will have an adverse effect on the performance and life of the heater.

[0029] See also Figure 2 The outer end of the guide rod 6 extends outward through the inner wall of the fixed component 1, and the two ends of the first extrusion spring 8 are respectively tightly fitted between the fixed component 1 and the outer connecting plate 7. The first extrusion spring 8 drives the guide rod 6 to move outward on the fixed component 1 through the outer connecting plate 7.

[0030] See also Figure 3 The fixing assembly 1 is composed of a bottom connecting plate 12, a front connecting plate 13 and a side connecting plate 14, and the front connecting plate 13 is located on the front and back of the bottom connecting plate 12, while the side connecting plates 14 are located on both sides of the bottom connecting plate 12. The bottom connecting plate 12, the front connecting plate 13 and the side connecting plate 14 can provide support and fixation for structures such as the guide plate 3. Positioning blocks 15 are installed at the front and rear ends of both sides of the bottom connecting plate 12, and the positioning blocks 15 are designed as a whole in a square shape. Limiting plates 16 are installed at the center positions of the upper parts of both sides of the front connecting plate 13. The bottom connecting plate 12 is connected to the corresponding structure through the positioning blocks 15, and the front connecting plate 13 is connected to the corresponding structure through the limiting plates 16. Limiting grooves 17 are provided at the front and rear ends of the upper inner side of the side connecting plate 14, and correspond to the limiting plates 16. Positioning grooves 18 are provided at the front and rear ends of the lower outer side of the side connecting plate 14, and correspond to the positioning blocks 15. When the side connecting plate 14 is connected to the bottom connecting plate 12 , the positioning block 15 is inserted into the interior of the positioning groove 18 , and when the side connecting plate 14 is connected to the front connecting plate 13 , the limiting plate 16 is inserted into the interior of the limiting groove 17 for connection.

[0031] See also Figure 4A guide shaft 19 is inserted and connected to the center of the front and rear ends of the top of the side connecting plate 14, and a limit hole 20 is provided on both sides of the center of the front and rear ends of the top of the side connecting plate 14. A limit side block 21 is installed on the front and back of the upper part of the guide shaft 19, corresponding to the limit hole 20, and a positioning head 23 is installed on the bottom of the guide shaft 19, corresponding to the positioning block 15. A return spring 22 is sleeved on the center of the guide shaft 19, and the limit side block 21 and the positioning head 23 are tightly fitted. When the positioning block 15 is inserted into the interior of the positioning groove 18, the guide shaft 19 is driven by the return spring 22 to descend along the inner cavity of the side connecting plate 14, and the positioning head 23 is inserted into the interior of the positioning block 15 for connection. Then the guide shaft 19 is rotated to make the limit side block 21 misaligned with the limit hole 20, and the limit side block 21 is tightly fitted with the interior of the side connecting plate 14 under the drive of the return spring 22. It not only ensures the stability of the connection between the bottom connecting plate 12, the front connecting plate 13 and the side connecting plate 14, but also facilitates the disassembly and assembly operations.

[0032] This solution: After the heating plate 4 is installed on the side mounting plate 2 and the guide plate 3, the first extrusion spring 8 drives the side mounting plate 2 to move outward through the guide rod 6 and the connecting plate 5. At the same time, the second extrusion spring 11 drives the side mounting plate 2 to move outward along the surface of the guide column 9 through the sliding block 10, so that the side mounting plate 2 drives the heating plate 4 to move and adjusts the tension of the heating plate 4. The guide plate 3 and other structures can be supported and fixed by the bottom connecting plate 12, the front connecting plate 13 and the side connecting plate 14. When the side connecting plate 14 is connected to the bottom connecting plate 12, the positioning block 15 is inserted into the interior of the positioning groove 18, and when the side connecting plate 14 is connected to the front connecting plate 13, the limit plate 16 is inserted into the interior of the limit groove 17 for connection. When the positioning block 15 is inserted into the positioning groove 18, the guide shaft 19 descends along the inner cavity of the side connecting plate 14 under the drive of the return spring 22, and the positioning head 23 is inserted into the interior of the positioning block 15 for connection, and then the guide shaft 19 is rotated to make the limiting side block 21 misaligned with the limiting hole 20, and the limiting side block 21 is tightly fitted with the inside of the side connecting plate 14 under the drive of the return spring 22.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heating mechanism of a heater, characterized in that: include: A fixing assembly (1), and side mounting plates (2) arranged on both sides of the bottom of the inner cavity of the fixing assembly (1), and guide plates (3) are evenly installed at the center of the bottom of the inner cavity of the fixing assembly (1), and a heating plate belt (4) is connected between the side mounting plates (2) and the guide plates (3); A connecting plate (5) is arranged at the front and rear ends of the outer sides of the side mounting plate (2), and a guide rod (6) is movably connected to the front of the connecting plate (5), the outer end of the guide rod (6) is connected to an outer connecting plate (7), and a first extrusion spring (8) is sleeved on the surface of the guide rod (6); The guide column (9) is arranged at the center of the front and back sides of the inner cavity of the fixed component (1), and the two sides of the guide column (9) are sleeved with sliding blocks (10) and connected to the side mounting plate (2). The center of the guide column (9) is sleeved with a second extrusion spring (11) and is tightly fitted with the sliding block (10).

2. The heating mechanism of a heater according to claim 1, characterized in that: The outer end of the guide rod (6) extends outward through the inner wall of the fixed component (1), and the two ends of the first extrusion spring (8) are tightly fitted between the fixed component (1) and the outer connecting plate (7).

3. The heating mechanism of a heater according to claim 1, characterized in that: The fixing assembly (1) is composed of a bottom connecting plate (12), a front connecting plate (13) and a side connecting plate (14), wherein the front connecting plate (13) is located on the front and back sides of the bottom connecting plate (12), and the side connecting plates (14) are located on both sides of the bottom connecting plate (12).

4. The heating mechanism of a heater according to claim 3, characterized in that: Positioning blocks (15) are installed at the front and rear ends of both sides of the bottom connecting plate (12), and the positioning blocks (15) are designed as a square. Limiting plates (16) are installed at the upper center positions of both sides of the front connecting plate (13).

5. The heating mechanism of a heater according to claim 4, characterized in that: The front and rear ends of the upper inner side surface of the side connecting plate (14) are provided with limiting grooves (17) corresponding to the limiting plates (16), and the front and rear ends of the lower outer side surface of the side connecting plate (14) are provided with positioning grooves (18) corresponding to the positioning blocks (15).

6. The heating mechanism of a heater according to claim 5, characterized in that: A guide shaft (19) is inserted and connected at the center of the front and rear ends of the top of the side connecting plate (14), and a limiting hole (20) is opened on both sides of the center of the front and rear ends of the top of the side connecting plate (14). A limiting side block (21) is installed on the front and back sides of the upper part of the guide shaft (19) and corresponds to the limiting hole (20), and a positioning head (23) is installed at the bottom of the guide shaft (19) and corresponds to the positioning block (15). A return spring (22) is sleeved at the center of the guide shaft (19) and is tightly fitted between the limiting side block (21) and the positioning head (23).

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