A small sun heater with built-in fan

Abstract

The application relates to a small sun heater with a built-in fan, which comprises a fixed frame, an air inlet grid installed on one side of the fixed frame, an air outlet grid installed on the other side of the fixed frame, a heating assembly installed on the air outlet grid, a reflecting cover arranged in the fixed frame and facing the heating assembly, and a fan assembly arranged in the fixed frame and used for blowing air towards the reflecting cover, wherein the fan assembly is provided with an air outlet channel, and the reflecting cover is provided with an air inlet structure communicated with the air outlet channel. The application has the effect of avoiding local overheating of the small sun heater caused by heat accumulation.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a small solar heater with a built-in fan. Background Technology

[0002] The mini electric heater is a common household heating device that uses infrared radiation heating technology. It generates heat through internal heating elements such as electric heating wires, quartz tubes, or halogen tubes, and uses a reflector to radiate the heat in a specific direction to achieve rapid localized heating.

[0003] However, traditional small electric heaters rely on natural air convection during use, which results in slow heat transfer and heat buildup. This can cause localized overheating, slowing down the surrounding environment and posing a risk of damaging internal components.

[0004] In view of this, it is necessary to develop a small solar heater with a built-in fan to solve the above problems. Utility Model Content

[0005] To prevent localized overheating caused by heat accumulation in small electric heaters, this application provides a small electric heater with a built-in fan.

[0006] The technical solution of the small sun heater with built-in fan provided in this application is as follows: A small solar heater with a built-in fan includes a fixed frame, an air inlet grille installed on one side of the fixed frame, an air outlet grille installed on the other side of the fixed frame, a heating element installed on the air outlet grille, a reflector disposed within the fixed frame and facing the heating element, and a fan assembly disposed within the fixed frame and for blowing air toward the reflector. The fan assembly has an air outlet channel, and the reflector is provided with an air inlet structure communicating with the air outlet channel.

[0007] By adopting the above technical solution, a fan assembly that blows air toward the reflector is set up. The fan assembly sends air to the air intake structure of the reflector through the air outlet channel, which can accelerate the air flow and thus speed up the heat transfer. This can prevent local overheating of the small sun heater, help solve the problem of local overheating caused by the reliance of traditional small sun heaters on natural air convection, which leads to slow temperature rise of the surrounding area, and also help reduce the risk of damage to internal components.

[0008] Optionally, the air intake structure includes an air intake channel circumferentially disposed on the reflector and a light shield disposed on the side of the reflector away from the fan assembly and used to block heat from directly entering the fan assembly.

[0009] By adopting the above technical solution, the air inlet slots circumferentially arranged on the reflector can allow air to enter the reflector evenly, and the setting of the light shield can prevent heat from directly entering the fan assembly, protect the fan assembly from high temperature, and thus reduce the risk of damage to the fan assembly.

[0010] Optionally, the reflector includes a reflective protrusion, a reflective recess located around the reflective protrusion, and a connecting portion connecting the reflective protrusion and the reflective recess, wherein the light-shielding member and the connecting portion form an air outlet toward the reflective recess.

[0011] By adopting the above technical solution, the air outlet formed by the shading part and the connecting part faces the reflective recess, which optimizes the air flow path and allows the air to blow directly to the reflective recess through the air outlet. This helps to accelerate the heat transfer speed and reduces the probability of local overheating caused by heat accumulation in the small sun heater.

[0012] Optionally, the inner wall of the light-shielding member has a guide arc surface for guiding air from the air outlet channel.

[0013] By adopting the above technical solution, the air from the air outlet channel can flow more smoothly under the guidance of the guide arc surface, and the loss of air kinetic energy is reduced, which helps to improve air circulation efficiency and thus accelerate the heat transfer speed.

[0014] Optionally, the fan assembly includes an exhaust fan connected to the air inlet grille and an air collecting shroud connecting the exhaust fan and the reflector, the air collecting shroud having an arcuate plate conforming to the reflector recess.

[0015] By adopting the above technical solution, the specific structure of the fan assembly is disclosed. The fan assembly includes an exhaust fan and an air collector cover. The air collector cover has an arc-shaped plate that fits into the reflective recess, which allows the air blown out by the exhaust fan to be smoothly transported to the reflector cover through the air collector cover, reducing the probability of the air flowing elsewhere, thereby helping to improve the air circulation efficiency.

[0016] Optionally, the exhaust fan is positioned directly opposite the reflector, and the inner wall of the air collecting shroud has a flow-expanding slope that is inclined toward the reflective recess.

[0017] By adopting the above technical solution, the exhaust fan faces the reflector, and the flow-expanding slope set on the inner wall of the air collecting cover faces the reflector recess, so that the airflow can impact the reflector more evenly and enter the air intake structure. At the same time, increasing the air outlet cross-sectional area can slow down the airflow speed, which helps to reduce the loss of air kinetic energy and effectively reduce operating noise.

[0018] Optionally, the air inlet grille is provided with a fixing post and an internal thread for mounting is provided in the fixing post; the exhaust fan is provided with a first through hole corresponding to the internal thread for mounting; and the air collector shroud is provided with a second through hole corresponding to the first through hole and an mounting screw that mates with the internal thread for mounting is provided in the second through hole.

[0019] By adopting the above technical solution, the connection structure of the air inlet grille, exhaust fan and air collector cover is disclosed. By using the mounting internal thread of the air inlet grille fixing post to cooperate with the first through hole of the fan, the second through hole of the air collector cover and the mounting screw, the fan assembly can be firmly installed, ensuring that the fan assembly is tightly connected to the air inlet grille, which helps to ensure the stability of the entire small sun heater structure.

[0020] Optionally, the air collecting hood has a relief groove on its inner wall that communicates with the second through hole.

[0021] By adopting the above technical solution, a clearance groove is opened in the inner wall of the fan shroud to connect the second through hole, which can provide clearance space for the mounting screws, facilitate the installation and disassembly of the fan assembly, and improve assembly efficiency.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. A small sun heater with a built-in fan, comprising a fixed frame, an air inlet grille and an air outlet grille installed on the fixed frame, a heating element, a reflector and a fan assembly, wherein the fan assembly has an air outlet channel and the reflector has an air inlet structure connected to the air outlet channel, thereby accelerating the airflow and thus speeding up the heat transfer rate, and preventing the small sun heater from overheating locally due to heat accumulation. 2. By installing a light-shielding component on the side of the reflector away from the fan assembly, the heat generated by the heat-generating component is prevented from directly entering the fan assembly, protecting the fan assembly from high temperatures and thus reducing the risk of damage to the fan assembly; 3. An air outlet is formed by the connection between the light-shielding component and the reflector, and the air outlet faces the reflector recess, so that air can be blown directly onto the reflector recess through the air outlet, which helps to accelerate the heat transfer speed. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a small solar heater with a built-in fan, as described in an embodiment of this application.

[0024] Figure 2 This is a cross-sectional schematic diagram of a small solar heater with a built-in fan in an embodiment of this application.

[0025] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0026] Figure 4This is a cross-sectional schematic diagram of the cooperation between the air intake grille and the fan assembly in an embodiment of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Fixing frame; 2. Air inlet grille; 21. Fixing post; 211. Mounting internal thread; 3. Air outlet grille; 4. Heating element; 5. Reflector; 51. Reflective protrusion; 52. Reflective recess; 53. Connecting part; 54. Air inlet channel; 55. Light shield; 551. Guide arc surface; 552. Light shield surface; 56. Air outlet; 6. Fan assembly; 61. Exhaust fan; 611. First through hole; 62. Air collection cover; 621. Second through hole; 622. Mounting screw; 623. Relief groove; 624. Arc plate; 625. Air diversion slope; 63. Air outlet channel. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] This application discloses a small solar heater with a built-in fan. (See also...) Figure 1 and Figure 2 The built-in fan mini heater includes a fixed frame 1, an air inlet grille 2 and an air outlet grille 3 respectively installed on the front and rear sides of the fixed frame 1, a heating element 4 installed on the air outlet grille 3, a reflector 5 set inside the fixed frame 1 and facing the heating element 4, and a fan assembly 6 set inside the fixed frame 1 and used to blow air towards the reflector 5, wherein the fan assembly 6 faces the reflector 5 and the reflector 5 faces the heating element 4.

[0030] refer to Figure 2 and Figure 3 The reflector 5 includes a reflective protrusion 51, a reflective recess 52 located around the reflective protrusion 51, and a connecting portion 53 connecting the reflective protrusion 51 and the reflective recess 52. The reflector 5 is provided with an air inlet structure, which includes air inlet slots 54 evenly spaced circumferentially on the reflector 5 and light-shielding members 55 located on the side of the reflector 5 away from the fan assembly 6 and corresponding to the light-shielding members 55. In this embodiment, the air inlet slots 54 are located on the connecting portion 53 of the reflector 5. The light-shielding members 55 and the connecting portion 53 form an air outlet 56 facing the reflective recess 52. The air outlet 56 is connected to the air inlet slots 54, and the inner wall of the light-shielding member 55 has a guide arc surface 551, so that the air from the fan assembly 6 can be guided by the light-shielding member 55 to the air outlet 56. At the same time, the air outlet 56 faces the reflective recess 52, which helps to accelerate the heat transfer speed. In this embodiment, the light-shielding member 55 has a light-shielding surface 552, which can block the corresponding air inlet slot 54 to prevent heat from directly entering the fan assembly 6 and protect the fan assembly 6 from high temperature.

[0031] refer to Figure 2 and Figure 4The fan assembly 6 includes an exhaust fan 61 connected to the air inlet grille 2 and an air collector shroud 62 connected to the exhaust fan 61. The air inlet grille 2 has four fixing posts 21, each with an internal thread 211. The exhaust fan 61 is rectangular, with first through holes 611 at its four corners corresponding to the internal threads 211. The air collector shroud 62 has second through holes 621 corresponding to the first through holes 611, and mounting screws 622 that mate with the internal threads 211 are provided in the second through holes 621, ensuring a threaded connection between the fan assembly 6 and the air inlet grille 2 with ideal connection strength. The air collector shroud 62 also has a recessed groove 623 on its inner wall that communicates with the second through holes 621, facilitating the installation and removal of the fan assembly 6.

[0032] refer to Figure 2 and Figure 3 The air collecting hood 62 is frustum-shaped. One end of the air collecting hood 62 near the reflector 5 has an arc-shaped plate 624 that fits into the reflective recess 52. The inner wall of the air collecting hood 62 has a flow-expanding inclined surface 625 that slopes towards the reflective recess 52. The air collecting hood 62 connects the exhaust fan 61 and the reflector 5. The fan assembly 6 forms an air outlet channel 63 within the exhaust fan 61 and the air collecting hood 62, and the air outlet channel 63 connects to the air inlet structure of the reflector 5, allowing for smooth airflow.

[0033] The implementation principle of a small solar heater with a built-in fan according to an embodiment of this application is as follows: A fan assembly 6 is installed inside the small solar heater. The fan assembly 6 has an air outlet channel 63. The reflector 5 of the small solar heater is provided with an air inlet structure connected to the air outlet channel 63. The air inlet structure includes a light-shielding member 55 that blocks heat from directly entering the fan assembly 6. When the small solar heater is working, the fan assembly 6 sends air to the air inlet structure of the reflector 5 through the air outlet channel 63, accelerating airflow and thus speeding up heat transfer. This helps to prevent localized overheating caused by heat accumulation in the small solar heater.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A small solar heater with a built-in fan, comprising a fixed frame (1), an air inlet grille (2) installed on one side of the fixed frame (1), an air outlet grille (3) installed on the other side of the fixed frame (1), a heating element (4) installed on the air outlet grille (3), a reflector (5) disposed within the fixed frame (1) and facing the heating element (4), and a fan assembly (6) disposed within the fixed frame (1) and for blowing air toward the reflector (5), wherein the fan assembly (6) has an air outlet channel (63), and the reflector (5) is provided with an air inlet structure communicating with the air outlet channel (63), characterized in that, The air intake structure includes an air intake channel (54) circumferentially disposed on the reflector (5) and a light shield (55) disposed on the side of the reflector (5) away from the fan assembly (6) and used to block heat from directly entering the fan assembly (6). The reflector (5) includes a reflective protrusion (51), a reflective recess (52) located around the reflective protrusion (51), and a connecting portion (53) connecting the reflective protrusion (51) and the reflective recess (52). The light-shielding member (55) and the connecting portion (53) form an air outlet (56) facing the reflective recess (52). The inner wall of the light shield (55) has a guide arc surface (551) for guiding air from the air outlet channel (63); The fan assembly (6) includes an exhaust fan (61) connected to the air inlet grille (2) and an air collecting shroud (62) connecting the exhaust fan (61) and the reflector (5), the air collecting shroud (62) having an arcuate plate (624) that fits into the reflector recess (52).

2. The small sun heater with a built-in fan according to claim 1, characterized in that, The exhaust fan (61) is directly opposite the reflector (5), and the inner wall of the air collecting cover (62) has a flow-expanding slope (625) that is inclined toward the reflective recess (52).

3. The small sun heater with a built-in fan according to claim 1, characterized in that, The air inlet grille (2) is provided with a fixing post (21) and an internal thread (211) is provided in the fixing post (21). The exhaust fan (61) is provided with a first through hole (611) corresponding to the internal thread (211). The air collector shroud (62) is provided with a second through hole (621) corresponding to the first through hole (611) and an mounting screw (622) that mates with the internal thread (211) is provided in the second through hole (621).

4. The small sun heater with a built-in fan according to claim 3, characterized in that, The air collecting hood (62) has a relief groove (623) on its inner wall that communicates with the second through hole (621).

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