A bathroom single-wheel heater

Abstract

The utility model relates to a heating device technical field, aims at providing a bathroom with single air wheel heating device, including casing, apron, motor and air wheel, the cavity with one end opening is in the casing, a plurality of air deflector is installed in the cavity, and the air deflector is surrounded and forms the air duct, and the first and last two ends of air duct extend to the two sides of casing symmetry respectively, and the motor is installed in the inside bottom of casing and is located in the air duct, and the air wheel is connected with the output shaft of motor, and the side of casing is provided with the air outlet, and the air outlet is correspondingly set up with one end of air duct and is communicated, and the apron is provided with the air outlet, and the air outlet is correspondingly set up with the other end of air duct and is communicated, and the utility model has the beneficial effect that, only single air wheel, single air outlet and single air outlet are arranged in the casing, compared with the existing double air wheel structure or double air outlet structure, the heating device structure is greatly simplified, the air wheel size, air outlet size and air outlet size can be increased in a certain range, and the air outlet and air outlet air volume are increased.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, and more specifically, it relates to a single-fan heater for bathroom use. Background Technology

[0002] Most existing traditional heaters use a design with two fan wheels. One fan wheel is connected to the heating element to blow hot air into the room, and the other fan wheel is connected to the exhaust duct to exhaust indoor air to the outside.

[0003] However, since the size of heaters is limited, generally 300*600mm, the more fan wheels installed inside the heater, the smaller the size of the corresponding fan wheels, resulting in lower fan power and air volume, which affects the air volume of the heater.

[0004] To address the aforementioned issues, our company has provided a single-fan heater (patent publication number CN222881263U), which has only one motor in the middle of its housing, with a fan wheel on the outside of the motor. The air intake in the middle of the fan wheel is sent into the first air outlet duct, the second air outlet duct, or the ventilation duct. The single fan wheel achieves the functions of blowing and ventilation, greatly reducing the size of the heater and completing the transformation to lightweight and miniaturization.

[0005] However, in the aforementioned single-fan heater, the circuit module is installed near the PTC heating element. Due to the temperature rise of the PTC heating element, the circuit module poses a certain safety hazard.

[0006] To address this issue, a single-fan bathroom heater with a more rational layout and reduced safety hazards has been designed. Utility Model Content

[0007] In view of the problems existing in the prior art, this utility model provides a single fan heater for bathrooms to solve the technical problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a single-fan heater for bathrooms, comprising a shell, a cover plate, a motor, and a fan. The shell has a cavity with one end open. The cover plate is installed in the cavity to seal it. Several air guide plates are installed inside the cavity, forming an air duct. The two ends of the air duct extend symmetrically to both sides of the shell. The motor is installed at the bottom inside the shell and located within the air duct. The fan is connected to the output shaft of the motor. An exhaust port is provided on one side of the shell, corresponding to and connected to one end of the air duct. An air outlet is provided on the cover plate, corresponding to and connected to the other end of the air duct.

[0009] By adopting the above technical solution, the housing is equipped with only a single impeller, a single air outlet, and a single exhaust outlet. Compared with the existing dual impeller or dual air outlet structures, the heater structure is greatly simplified, allowing the size of the impeller, air outlet, and exhaust outlet to be increased within a certain range, thereby increasing the air volume of the air outlet and exhaust outlet.

[0010] The present invention is further configured such that a PTC heating element is installed at the air outlet for heating the air passing through the air outlet.

[0011] This invention is further configured such that the single-fan heater also includes a circuit module, which is installed inside the cavity and located near the exhaust vent. The circuit module is positioned away from the PTC heating element at the exhaust vent to minimize the impact of the PTC heating element's temperature rise on the circuit module.

[0012] The present invention is further configured such that an air inlet is provided on the cover plate, and the air inlet corresponds to the center of the impeller.

[0013] The present invention is further provided that an inspection port is provided on the cover plate at the position corresponding to the circuit module, and an inspection baffle is detachably installed at the inspection port.

[0014] The present invention is further configured such that a mounting base is fixed to the bottom inner side of the housing, the motor is mounted on the mounting base, and a thickened layer is provided on the bottom inner side of the housing to improve the strength of the bottom of the housing and reduce the impact of motor vibration. The thickened layer can be a honeycomb-shaped reinforcing rib.

[0015] The present invention is further configured such that a wire is connected between the motor and the circuit module, and a wire passage groove is provided on the air guide plate for the wire to pass through.

[0016] The present invention is further provided with a wire outlet cover between the impeller and the bottom of the inner side of the housing. The wire outlet cover is connected to the bottom of the inner side of the housing and is used to cover the wires between the motor and the circuit module to prevent the wires from getting caught when the impeller rotates.

[0017] Compared with the prior art, this utility model provides a single-fan heater for bathrooms, which has the following beneficial effects: 1. The housing has only a single impeller, a single air outlet, and a single exhaust outlet. Compared with the existing dual impeller or dual air outlet structures, this greatly simplifies the heater structure, allowing the size of the impeller, air outlet, and exhaust outlet to be increased within a certain range, thereby increasing the air volume of the air outlet and exhaust outlet.

[0018] 2. The circuit module is installed inside the housing away from the air outlet, which greatly reduces the impact of the PTC heating element at the air outlet on the circuit module.

[0019] 3. A wire outlet cover is also installed inside the housing to shield the wires between the motor and the circuit module, preventing the wires from getting caught when the impeller rotates. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a single-fan heater for bathroom use; Figure 2 A schematic diagram of the structure without the outer shell; Figure 3 A schematic diagram of the structure without the casing and impeller; Figure 4 This is a schematic diagram of the cover plate.

[0021] In the diagram: 1. Housing; 101. Cavity; 102. Air duct; 2. Cover plate; 3. Motor; 4. Fan wheel; 5. Air guide plate; 6. Exhaust port; 7. Air outlet; 8. PTC heating element; 9. Circuit module; 10. Air inlet; 11. Inspection port; 12. Inspection baffle; 13. Mounting base; 14. Thickened layer; 15. Cable tray; 16. Cable outlet cover. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] A bathroom single-fan heater includes a housing 1, a cover plate 2, a motor 3, and a fan 4. The housing 1 has a cavity 101 with one end open. The cover plate 2 is installed in the cavity 101 to seal the cavity 101. Several air guide plates 5 are installed in the cavity 101, forming an air duct 102. The two ends of the air duct 102 extend symmetrically to both sides of the housing 1. The motor 3 is installed at the bottom inside the housing 1 and is located in the air duct 102. The fan 4 is connected to the output shaft of the motor 3. An exhaust port 6 is opened on one side of the housing 1, which is correspondingly set and connected to one end of the air duct 102. An air outlet 7 is opened on the cover plate 2, which is correspondingly set and connected to the other end of the air duct 102. A PTC heating element 8 is installed at the air outlet 7 to heat the air passing through the air outlet 7.

[0027] Specifically, the exhaust vent 6 is located on one side of the housing 1 to connect with the outside air and form an exhaust channel, and the air outlet 7 is located on the side of the cover plate 2 away from the exhaust vent 6 to connect with the indoor air and form an air outlet channel. Several air guide plates 5 are installed in the cavity 101 of the housing 1, and their ends are connected to each other or to the inner wall of the housing 1 to form an enclosed space, namely the air duct 102. The two ends of the air duct 102 extend towards the exhaust vent 6 and the air outlet 7 respectively, and are connected to them.

[0028] The impeller 4 is installed near the center of the air duct 102, so that air can be sent to the exhaust port 6 or the outlet port 7 by rotating the impeller 4; the cover plate 2 has an air inlet 10, and the air inlet 10 corresponds to the center of the impeller 4, so that indoor air can be sent into the impeller 4.

[0029] like Figure 2 and 3 As shown, the single-fan heater also includes a circuit module 9, which is installed in the cavity 101 and located near the exhaust port 6. The circuit module 9 is far away from the PTC heating element 8 at the exhaust port 7 to minimize the impact of the PTC heating element 8's heating on the circuit module 9.

[0030] Specifically, the circuit module 9 is located inside the cavity 101 and not inside the air duct 102, so as to avoid the air in the air duct 102 affecting the circuit module 9. Furthermore, the circuit module 9 is installed as far away from the air outlet 7 as possible, thereby avoiding the impact of the PTC heating element 8 heating on the circuit module 9.

[0031] A maintenance port 11 is provided on the cover plate 2 at the position corresponding to the circuit module 9. A maintenance baffle 12 is installed at the maintenance port 11. The maintenance baffle 12 is detachably installed at the maintenance port 11 by means of screw connection, snap-fit, bolt connection or other connection methods, so that the maintenance baffle 12 can be removed to maintain the circuit module 9.

[0032] In order to control the temperature of the PTC heating element 8, a temperature controller can also be set to detect the temperature of the PTC heating element 8 and avoid overheating; the PTC heating element 8 and the temperature controller are both connected to the circuit module 9 through wires.

[0033] like Figure 2 As shown, a mounting base 13 is fixed to the bottom inner side of the housing 1, and the motor 3 is mounted on the mounting base 13. A thickened layer 14 is provided on the bottom inner side of the housing 1 to improve the strength of the bottom of the housing 1 and reduce the impact of the vibration of the motor 3. The thickened layer 14 can be a honeycomb-shaped reinforcing rib.

[0034] like Figure 2 As shown, the motor 3 and the circuit module 9 are connected by wires (not shown in the figure). The air guide plate 5 has a wire groove 15 for the wires to pass through. The wind wheel 4 and the bottom of the inner side of the housing 1 are also provided with a wire outlet cover 16. The wire outlet cover 16 is connected to the bottom of the inner side of the housing 1. The wire outlet cover 16 is used to cover the wires between the motor 3 and the circuit module 9 to prevent the wires from being tangled when the wind wheel 4 rotates.

[0035] Specifically, the wire passes through the wire groove 15 and connects the motor 3 and the circuit module 9. The wire outlet cover 16 is placed on the wire and connected and fixed to the bottom of the inner side of the housing 1 to form a shielding and protection function for the wire, so as to prevent the wire from being wound in when the impeller 4 rotates.

[0036] The working principle of the indoor single-fan heater disclosed in this embodiment of the utility model is as follows: The motor 3 drives the impeller 4 to rotate, causing indoor air to enter the center of the impeller 4 through the air inlet 10 and be sent out to the edge under centrifugal force. At this time, there are two air outlet paths. One path flows along the air duct 102 to the air outlet 7, and is heated by the PTC heating element 8 of the air outlet 7 before being discharged back into the room, which heats the indoor air. The other air outlet path flows along the air duct 102 to the exhaust vent 6, and the exhaust vent 6 and the exhaust pipe pre-connected to the exhaust vent 6 are discharged to the outside, which plays the role of ventilation.

[0037] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A single-fan heater for bathroom use, characterized in that, It includes a housing (1), a cover plate (2), a motor (3), and a wind turbine (4). The housing (1) has a cavity (101) with one end open, and a cover plate (2) is installed in the cavity (101) to close the cavity (101). Several air guide plates (5) are installed inside the cavity (101). The air guide plates (5) together form an air duct (102). The two ends of the air duct (102) extend symmetrically to both sides of the shell (1). The motor (3) is installed at the bottom inside the housing (1) and located in the air duct (102). The impeller (4) is connected to the output shaft of the motor (3). An exhaust port (6) is provided on one side of the housing (1), and the exhaust port (6) is correspondingly provided and connected to one end of the air duct (102). An air outlet (7) is provided on the cover plate (2), and the air outlet (7) is correspondingly provided and connected to the other end of the air duct (102).

2. A single-fan bathroom heater according to claim 1, characterized in that, A PTC heating element (8) is installed at the air outlet (7) to heat the air passing through the air outlet (7).

3. A single-fan heater for bathrooms according to claim 2, characterized in that, The single-fan heater also includes a circuit module (9), which is installed in the cavity (101) and located near the exhaust port (6).

4. A single-fan bathroom heater according to claim 1, characterized in that, The cover plate (2) has an air inlet (10) and the air inlet (10) corresponds to the center of the impeller (4).

5. A single-fan bathroom heater according to claim 3, characterized in that, The cover plate (2) has an inspection port (11) corresponding to the circuit module (9), and an inspection baffle (12) is detachably installed at the inspection port (11).

6. A single-fan bathroom heater according to claim 1, characterized in that, The housing (1) has a mounting base (13) fixed to the bottom of its inner side, and the motor (3) is mounted on the mounting base (13).

7. A single-fan heater for bathrooms according to claim 6, characterized in that, The inner bottom of the housing (1) is provided with a thickened layer (14), and the mounting base (13) is located at the thickened layer (14).

Images