Induction heater housing structure with heat dissipation fan
By designing a flip-up fan and sealing plate structure on the induction heater, the problem of dust ingress is solved, achieving efficient heat dissipation and dust prevention, and improving the ease of equipment maintenance.
Patent Information
- Application Number
- CN202521473382.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-15
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-15
AI Technical Summary
The fixed installation of the fan in the existing induction heater makes it easy for external dust to enter the casing, requiring the casing to be disassembled for cleaning, which affects the convenience of maintenance.
The design features a flip-up fan and a circular cover. When the fan is in operation, it delivers cool air for heat dissipation. When not in operation, the cover is flipped up to block the air inlet and prevent dust from entering.
It improves heat dissipation efficiency and dust prevention performance, avoids disassembly and dust cleaning, and enhances maintenance convenience.
Smart Images

Figure CN224684389U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of induction heater accessories, and in particular to the housing structure of an induction heater with a cooling fan. Background Technology
[0002] Induction heaters achieve efficient heating through the principle of electromagnetic induction. Their structure is designed around core functions such as power supply, heating coil, cooling, and control, and they are widely used in industrial processing and daily life. Because the coil inside the induction heater generates heat due to resistance loss and magnetic leakage during operation, heat dissipation vents must be provided on the casing to ensure that heat can escape, preventing overheating and damage to internal electrical components and effectively improving the durability of the induction heater.
[0003] Existing induction heaters typically employ static cooling in practical use, utilizing pre-existing ventilation openings on the casing to ensure heat dissipation. To further enhance cooling, fans can be added, usually fixed to the casing to deliver cool air and accelerate heat removal. However, in practice, because the fan is fixed, dust can easily penetrate and enter the casing when the heater is not in operation. If dust accumulates on the internal electrical components, the casing needs to be disassembled for cleaning, which can impede heat dissipation and significantly reduces the ease of maintenance. Therefore, this application proposes an induction heater casing structure with a cooling fan that improves heat dissipation and provides dust protection. Utility Model Content
[0004] The purpose of this invention is to address the problem in the prior art that external dust can easily penetrate the fan and enter the housing, requiring the housing to be disassembled for cleaning. This invention proposes an induction heater housing structure with a cooling fan that can improve heat dissipation and has dustproof performance.
[0005] The technical solution of this utility model: an induction heater housing structure with a cooling fan, including an outer shell, on which grille-type heat dissipation vents are fixedly installed on two opposite side plates, and further including: A carrying frame is fixedly installed on the top of the outer shell. A fan is rotatably mounted on the carrying frame. A circular air inlet is cut out at the top of the outer shell. The air outlet of the fan is inserted into the inside of the circular air inlet and is movably engaged with it. A circular sealing plate is fixedly installed on the rear cover of the fan. The circular sealing plate is positioned above the circular air inlet and is used to block the circular air inlet and prevent dust from entering the interior of the casing.
[0006] Optionally, the carrying rack includes two symmetrically arranged limiting plates, the circular air inlet is located between the two limiting plates, and the fan is movably mounted on the two limiting plates.
[0007] Optionally, two connecting shafts are fixedly installed on the outer side wall of the fan, and a limiting groove is chiseled on the inner side wall of the limiting plate. One end of the connecting shaft is inserted into the matching limiting groove and movably connected thereto.
[0008] Optionally, a semi-circular plate is fixedly installed at the top of both limiting plates, and the fan and the circular sealing plate are both located below the semi-circular plate.
[0009] Optionally, a circular inner plate is fixedly installed on the top of the circular sealing plate. The diameter of the circular inner plate is smaller than the diameter of the circular air inlet, and the diameter of the circular sealing plate is larger than the diameter of the circular air inlet.
[0010] Optionally, a front cover is fixedly installed at one end of the housing, and a control panel and a heating coil mounting base are fixedly installed on the front cover.
[0011] Compared with the prior art, this application includes at least one of the following beneficial technical effects: by delivering cold air into the housing through a fan, the efficiency of heat dissipation from the housing is accelerated, effectively improving the heat dissipation effect; when the induction heater is not in operation, the fan is flipped and the circular air inlet is blocked by a circular sealing plate to prevent external dust from entering the housing, eliminating the need to disassemble the housing to clean the dust, thus effectively improving the convenience of maintenance of the induction heater. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the fan-assisted heat dissipation state of this utility model; Figure 2 This is a schematic diagram of the fan adjustment state of this utility model; Figure 3 This is a schematic diagram of the circular air inlet being blocked according to the present invention; Figure 4 This is a schematic diagram of the carrying frame structure of this utility model; Figure 5 This is a schematic diagram of the fan and circular sealing plate structure of this utility model.
[0013] Reference numerals: 1. Outer shell; 2. Grille-style heat dissipation vents; 3. Handle; 31. Limiting plate; 32. Semi-circular plate; 33. Limiting groove; 4. Fan; 41. Connecting shaft; 42. Circular sealing plate; 43. Circular inner plate; 5. Front cover plate; 6. Control Panel; 7. Heating coil mounting base; 8. Circular air inlet. Detailed Implementation
[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example
[0015] like Figures 1-3 As shown, the induction heater housing structure with cooling fan proposed in this utility model includes an outer shell 1. Two opposing side plates of the outer shell 1 are fixedly equipped with grille-type heat dissipation vents 2, ensuring that heat inside the outer shell 1 can be discharged outwards through the grille-type heat dissipation vents 2. A carrying frame 3 is fixedly installed on the top of the outer shell 1, and a fan 4 is rotatably mounted on the carrying frame 3 for easy adjustment of the fan 4's rotation. A circular air inlet 8 is cut at the top of the outer shell 1. When the induction heater enters the operating state, the air outlet of the fan 4 is inserted into the circular air inlet 8 and engaged with it. At this time, the fan 4 delivers cool air into the outer shell 1, which can accelerate the efficiency of heat dissipation from the outer shell 1 through the grille-type heat dissipation vents 2, effectively improving the heat dissipation effect.
[0016] A circular sealing plate 42 is fixedly installed on the rear cover of the aforementioned fan 4. The circular sealing plate 42 is positioned above the circular air inlet 8. When the induction heater enters the non-operating state, the fan 4 is flipped so that the circular sealing plate 42 faces the circular air inlet 8. Pushing the fan 4 downward will seal the circular sealing plate 42 at the circular air inlet 8, effectively preventing external dust from entering the housing 1 from the circular air inlet 8. This avoids dust accumulation on the electrical components installed inside the housing 1, eliminating the need to disassemble the housing 1 for dust cleaning and effectively improving the convenience of induction heater maintenance.
[0017] like Figures 2-5 As shown, to facilitate the flipping and adjustment of the fan 4, the fan 4 is movably installed between the two limiting plates 31 that make up the carrying frame 3. Two connecting shafts 41 are fixedly installed on the outer side wall of the fan 4. The inner side wall of the limiting plate 31 is chiseled with a limiting groove 33. The end of the connecting shaft 41 away from the fan 4 is inserted into the matching limiting groove 33 and movably connected to it. The limiting groove 33 limits the connecting shaft 41, which not only ensures that the fan 4 is stably rotated and installed on the carrying frame 3, but also allows for vertical adjustment of the fan 4. When it is necessary to flip and adjust the fan 4, first pull the fan 4 upward. After the air outlet of the fan 4 is pulled out from the circular air inlet 8, it can be flipped, making it convenient to adjust the circular sealing plate 42 to the bottom of the fan 4.
[0018] Furthermore, to improve the sealing performance after the circular air inlet 8 is sealed, a circular inner plate 43 is fixedly installed on the top of the circular sealing plate 42. The diameter of the circular inner plate 43 is smaller than the diameter of the circular air inlet 8, and the diameter of the circular sealing plate 42 is larger than the diameter of the circular air inlet 8. When it is necessary to seal the circular air inlet 8, the fan 4 is pushed down and the circular sealing plate 42 is moved down. After the circular inner plate 43 is embedded inside the circular air inlet 8, the circular sealing plate 42 covers the top of the outer shell 1, thereby completely sealing the circular air inlet 8 and effectively preventing dust from entering the interior of the outer shell 1 from the circular air inlet 8.
[0019] Secondly, to facilitate the handling of the induction heater, a semi-circular plate 32 is fixedly installed at the top of the two limiting plates 31 mentioned above. By holding the semi-circular plate 32, the outer casing 1 can be lifted, making it convenient to handle the induction heater.
[0020] like Figure 1 As shown, to facilitate the assembly of the induction heater, a front cover plate 5 is fixedly installed at one end opening of the outer casing 1. A control panel 6 and a heating coil mounting base 7 are fixedly installed on the front cover plate 5. After the electrical components (induction coil, magnetic core, resonant capacitor, circuit board, etc.) inside the outer casing 1 are installed, the circuit board and control panel 6 are electrically connected as one unit. Then, the external heating coil is inserted into the heating coil mounting base 7, ensuring that the heating coil and the induction coil are welded and fixed as one unit. Finally, the front cover plate 5 is fixed to the outer casing 1, thus completing the assembly of the induction heater. When it is necessary to inspect the electrical components inside the outer casing 1, the front cover plate 5 can be opened for inspection, facilitating maintenance.
[0021] In this embodiment, when the induction heater is in operation, the air outlet of the fan 4 is inserted into the inside of the circular air inlet 8. The fan 4 is electrically connected to the control panel 6 via a wire. Pressing the switch on the control panel 6 activates the fan 4, which then delivers cool air into the housing 1 through the circular air inlet 8. This cool air accelerates the expulsion of heat from the housing 1 through the grille-type heat dissipation vent 2, effectively improving the heat dissipation of the induction heater. When the induction heater is not in operation, the fan 4 is first pulled upwards and... Disconnect it from the circular air inlet 8, then flip the fan 4 and the circular sealing plate 42. When the circular sealing plate 42 faces the circular air inlet 8, push the fan 4 downward. When the circular inner plate 43 is embedded inside the circular air inlet 8, the circular sealing plate 42 covers the top of the outer casing 1, thus completely sealing the circular air inlet 8. This effectively prevents external dust from entering the interior of the outer casing 1 from the circular air inlet 8, improving the dustproof performance of the induction heater. Therefore, there is no need to disassemble the outer casing 1 to clean the dust inside, effectively improving the convenience of maintenance of the induction heater.
[0022] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. An induction heater housing structure with a cooling fan, comprising a housing (1), wherein grid-type heat dissipation vents (2) are fixedly installed on two opposite side plates of the housing (1), characterized in that, Also includes: A carrying frame (3) is fixedly installed on the top of the outer shell (1). A fan (4) is rotatably installed on the carrying frame (3). A circular air inlet (8) is cut at the top of the outer shell (1). The air outlet of the fan (4) is inserted into the inside of the circular air inlet (8) and is movably engaged with it. A circular sealing plate (42) is fixedly installed on the rear cover of the fan (4). The circular sealing plate (42) is located above the circular air inlet (8). The circular sealing plate (42) is used to block the circular air inlet (8) and prevent dust from entering the interior of the outer casing (1).
2. The induction heater housing structure with cooling fan according to claim 1, characterized in that, The carrying frame (3) includes two symmetrically arranged limiting plates (31), the circular air inlet (8) is located between the two limiting plates (31), and the fan (4) is movably installed on the two limiting plates (31).
3. The induction heater housing structure with cooling fan according to claim 2, characterized in that, Two connecting shafts (41) are fixedly installed on the outer side wall of the fan (4). A limiting groove (33) is chiseled on the inner side wall of the limiting plate (31). One end of the connecting shaft (41) is inserted into the matching limiting groove (33) and movably connected to it.
4. The induction heater housing structure with cooling fan according to claim 3, characterized in that, The top ends of the two limiting plates (31) are fixedly mounted with a semi-arc plate (32), and the fan (4) and the circular sealing plate (42) are both located below the semi-arc plate (32).
5. The induction heater housing structure with cooling fan according to claim 4, characterized in that, A circular inner plate (43) is fixedly installed on the top of the circular sealing plate (42). The diameter of the circular inner plate (43) is smaller than the diameter of the circular air inlet (8), and the diameter of the circular sealing plate (42) is larger than the diameter of the circular air inlet (8).
6. The induction heater housing structure with cooling fan according to claim 1, characterized in that, A front cover plate (5) is fixedly installed at one end of the outer shell (1), and a control panel (6) and a heating coil mounting base (7) are fixedly installed on the front cover plate (5).