Single-fan double-air-door type bath heater

Abstract

The utility model discloses a single fan double air door type bath heater, including bath heater host, first air door and second air door, be provided with the air cavity and the air wheel in the air cavity in bath heater host, through the pivot connection first air door and second air door in the air cavity, be provided with the air outlet and the moisture outlet on the air cavity, when only need to carry out hot air heating to shower room, first air door and second air door all switch to the moisture outlet on, thereby completely close the moisture outlet, when only need to exhaust, first air door switches to the air outlet on thereby will air outlet completely close, exhaust the mouth open at this time, when need to exhaust and need hot air heating, first air door closes part moisture outlet and second air door switches to the other part moisture outlet of opening another part moisture outlet, the air outlet and part moisture outlet all are linked together with the air cavity thereby synchronous operation. Through the width of adjusting air outlet and moisture outlet and through the increase second air door, realize exhaust and heating synchronous operation, cost increase less, user experience is better.

Description

Technical Field

[0001] This utility model relates to the field of bathroom heaters, and in particular to a single-fan, double-door type bathroom heater. Background Technology

[0002] A bathroom heater is a device installed in a shower room to dehumidify or heat the shower area, while also providing supplementary lighting. Currently, there are two types of bathroom heaters: one is a dual-fan type, where one fan heats the shower area through an independent duct, and the other dehumidifies it through another independent duct. The two fans operate independently to perform their respective functions. Referencing the integrated ceiling-mounted bathroom heater disclosed in patent application number 201811181864.2, this type has a relatively complex structure and higher cost. The other type is a single-fan type, where only one fan is installed, with both an air outlet and a dehumidification outlet. A damper switches between the two. However, this type cannot simultaneously heat the shower area and dehumidify; only one can be performed at a time. Referencing the bathroom heater with dehumidification function disclosed in patent application number 201620544575.4. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a single-fan, double-door type bathroom heater, thereby solving the problem that single-fan type bathroom heaters cannot simultaneously perform both heating and dehumidification functions.

[0004] The technical solution adopted by this utility model to solve the problem is: a single-fan, double-door type bathroom heater, comprising: The bathroom heater unit has an air chamber and a fan wheel located inside the air chamber. The air chamber has an air outlet and a dehumidification outlet. The air outlet has a hot air duct that connects to the bottom of the bathroom heater unit. The hot air duct has a heater inside. The bathroom heater unit has an air inlet that communicates with the air chamber. The first air damper is pivotally connected to the air cavity. The main unit of the bathroom heater is equipped with a first motor that drives the first air damper to switch between the air outlet and the dehumidification outlet. The width of the air outlet is smaller than the width of the dehumidification outlet, so that the first air damper can completely close the air outlet but can only partially close the dehumidification outlet. The second air damper is pivotally connected inside the air cavity, and the main unit of the bathroom heater is equipped with a second motor that drives the second air damper to switch between the exhaust port and the termination position. When the first damper switches to the air outlet, the air outlet is completely closed; when the first damper switches to the dehumidification outlet and the second damper switches to the dehumidification outlet, the first damper and the second damper together close the dehumidification outlet; when the first damper switches to the dehumidification outlet and the second damper switches to the end position, the dehumidification outlet is partially opened.

[0005] As a further improvement to the above technical solution, the first damper and the second damper are located on both sides of the exhaust port, and the first damper and the second damper close the exhaust port in a split manner.

[0006] As a further improvement to the above technical solution, the air cavity includes a main cavity that is circular or nearly circular and an extension cavity connected to the main cavity. The impeller is arranged in the main cavity, the air outlet is located at the end of the extension cavity, and the dehumidification port is located on the outer sidewall of the extension cavity.

[0007] As a further improvement to the above technical solution, the extended cavity is in the shape of a trumpet that gradually narrows towards the end.

[0008] As a further improvement to the above technical solution, the distance between the impeller and the inner wall of the main cavity gradually increases as it moves toward the extended cavity.

[0009] As a further improvement to the above technical solution, the outer sidewall of the extended cavity is tangent to the edge of the main cavity.

[0010] As a further improvement to the above technical solution, an outwardly recessed notch is provided on the inner wall of the main cavity near the exhaust port. This notch is the termination position of the second damper. When the second damper is in the termination position, the second damper abuts against the inner wall of the notch so that the edge of the second damper is lower than the inner wall of the main cavity.

[0011] As a further improvement to the above technical solution, the intersection of the inner sidewall of the extended cavity and the inner wall of the main cavity forms a transition position, and the first damper abuts against the transition position when closing the air outlet.

[0012] As a further improvement to the above technical solution, the height of the top surface of the hot air duct gradually decreases along the direction away from the air cavity.

[0013] As a further improvement to the above technical solution, the top of the bathroom heater unit is provided with a mounting plate and a cover that covers the top of the mounting plate. The side walls and top walls of the air cavity are arranged on the cover, and the exhaust port is connected to the outer surface of the cover. The impeller, the first damper, the first motor, the second damper, the second motor, and the hot air duct are all arranged on the mounting plate.

[0014] The beneficial effects of this utility model are as follows: By pivoting a first air damper and a second air damper within the air cavity, and providing an air outlet and a dehumidification outlet on the air cavity, when only hot air heating of the shower room is needed, both the first and second air dampers switch to the dehumidification outlet, thus completely closing the dehumidification outlet. At this time, only the air outlet is connected to the air cavity, allowing the airflow drawn from the shower room by the impeller to flow through the hot air duct and be heated by the heater to heat the shower room. When only exhaust is needed, the first air damper switches to the air outlet, thus completely closing the air outlet. At this time, the dehumidification outlet opens, thus allowing the air to pass through the air outlet. The airflow flows along the vent to expel moisture from the shower room, while the second damper controls the dehumidification speed by opening or closing part of the vent. When both dehumidification and heating of the shower room are required, the first damper closes part of the vent, and the second damper switches to the terminated position to open the remaining vent. At this time, both the air outlet and the partial vent are connected to the air chamber. Therefore, the airflow drawn from the shower room by the impeller is divided into two streams: one flows out along the vent for dehumidification, and the other flows into the hot air duct along the air outlet to heat the shower room. This solution, compared to existing technologies, achieves simultaneous dehumidification and heating by adjusting the width of the air outlet and vent and adding a second damper, with minimal cost increase and a better user experience. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction; Figure 3 This is a schematic diagram showing the positions of the first and second air dampers when the device is in heating mode. Figure 4 This is a schematic diagram showing the positions of the first and second dampers when heating and dehumidification are operating simultaneously. Figure 5 This is a schematic diagram showing the positions of the first and second air dampers when the dehumidification mode is in operation. Figure 6 This is a schematic diagram of the casing structure. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Reference Figures 1 to 6 A single-fan, double-door type bathroom heater, comprising: The bathroom heater unit 10 has an air cavity 11 and a fan wheel 20 located inside the air cavity 11. The air cavity 11 has an air outlet 12 and a dehumidification outlet 13. The air outlet 12 has a hot air duct 14 that connects to the bottom of the bathroom heater unit 10. The hot air duct 14 has a heater 15 inside. The bathroom heater unit 10 has an air inlet that communicates with the air cavity 11. The first air damper 30 is pivotally connected to the air cavity 11. The main unit 10 of the bathroom heater is equipped with a first motor 31 that drives the first air damper 30 to switch between the air outlet 12 and the dehumidification outlet 13. The width of the air outlet 12 is smaller than the width of the dehumidification outlet 13, so that the first air damper 30 can completely close the air outlet 12 but can only partially close the dehumidification outlet 13. The second air damper 40 is pivotally connected to the air cavity 11. The main unit of the bathroom heater 10 is equipped with a second motor 41 that drives the second air damper 40 to switch between the exhaust port 13 and the termination position. When the first damper 30 switches to the air outlet 12, the air outlet 12 is completely closed; when the first damper 30 switches to the dehumidification outlet 13 and the second damper 40 switches to the dehumidification outlet 13, the first damper 30 and the second damper 40 together close the dehumidification outlet 13; when the first damper 30 switches to the dehumidification outlet 13 and the second damper 40 switches to the end position, the dehumidification outlet 13 is partially opened.

[0022] By pivoting a first damper 30 and a second damper 40 within the air cavity 11, the air cavity 11 is equipped with an air outlet 12 and a dehumidification outlet 13. When only hot air heating of the shower room is needed, both the first damper 30 and the second damper 40 switch to the dehumidification outlet 13, thus completely closing the dehumidification outlet 13. At this time, only the air outlet 12 is connected to the air cavity 11, allowing the airflow drawn from the shower room by the impeller 20 to flow through the hot air duct 14 and be heated by the heater 15 to heat the shower room. When only exhaust is needed, the first damper 30 switches to the air outlet 12, thus completely closing the air outlet 12. At this time, the dehumidification outlet 13 opens, thus allowing airflow to pass through the air outlet 12. Moisture flows along the exhaust vent 13 to expel moisture from the shower room, while the second damper 40 controls the speed of dehumidification by opening or closing part of the exhaust vent 13. When both dehumidification and heating of the shower room are required, the first damper 30 closes part of the exhaust vent 13, and the second damper 40 switches to the terminated position to open the remaining part of the exhaust vent 13. At this time, both the air outlet 12 and part of the exhaust vent 13 are connected to the air chamber 11. Therefore, the airflow drawn from the shower room by the impeller 20 is divided into two streams: one flows out along the exhaust vent 13 for dehumidification, and the other flows into the hot air duct 14 along the air outlet 12 for heating the shower room. With this solution, compared to the prior art, by adjusting the width of the air outlet 12 and the exhaust vent 13 and adding the second damper 40, simultaneous dehumidification and heating can be achieved with minimal cost increase and a better user experience.

[0023] Further optimization is achieved in this design, where the first damper 30 and the second damper 40 are preferably located on opposite sides of the exhaust port 13. The first damper 30 and the second damper 40 close the exhaust port 13 in a split-opening manner. This minimizes the space occupied by the first damper 30 and the second damper 40 in the exhaust port 13 and improves the closing effect of the first damper 30 and the second damper 40 on dehumidification. In other embodiments, the second damper 40 can be positioned in the middle of the exhaust port 13, and the exhaust port 13 can be closed by the first damper 30 and the second damper 40 swinging in the same direction.

[0024] In this design, the preferred air cavity 11 comprises a main cavity 111 that is circular or near-circular and an extension cavity 112 connected to the main cavity 111. The impeller 20 is arranged in the main cavity 111, the air outlet 12 is located at the end of the extension cavity 112, and the dehumidification outlet 13 is located on the outer sidewall of the extension cavity 112. "Near-circular" refers to a shape similar to a circle, such as an ellipse, an eccentric circle, or a shape with involute edges.

[0025] In this design, in order to concentrate the airflow when it is discharged along the air outlet 12, the extended cavity 112 is preferably flared in shape and gradually narrows towards the end.

[0026] Meanwhile, in order to make the airflow more smoothly flow towards the air outlet 12 and the dehumidification outlet 13 during the rotation of the impeller 20, it is preferable that the distance between the impeller 20 and the inner wall of the main cavity 111 gradually increases as it moves towards the extension cavity 112.

[0027] In this design, to make the airflow more aerodynamic, it is preferable that the outer sidewall of the extended cavity 112 is tangent to the edge of the main cavity 111.

[0028] In this design, preferably, an outwardly recessed notch 42 is provided on the inner wall of the main cavity 111 near the exhaust port 13. This notch 42 is the termination position of the second damper 40. When the second damper 40 is in the termination position, the second damper 40 abuts against the inner wall of the notch 42, so that the edge of the second damper 40 is lower than the inner wall of the main cavity 111. In this way, when the second damper 40 is in the termination position, the airflow process will only hit the outer side of the second damper 40 and will not hit the inner side of the second damper 40. Therefore, the airflow will only press the second damper 40 into the notch 42, thereby preventing the second damper 40 from swinging towards the direction of closing the exhaust port 13 under the action of the airflow.

[0029] In other embodiments, there are many other ways to arrange the termination position of the second damper 40, which can be set according to the requirements. For example, the termination position of the second damper 40 can be directly attached to the inner wall of the main cavity 111, and the edge of the second damper 40 can form a blade-like structure to prevent airflow from entering between the second damper 40 and the inner wall of the main cavity 111.

[0030] In this design, preferably, a transition position 32 is formed at the intersection of the inner wall of the extended cavity 112 and the inner wall of the main cavity 111. When the first damper 30 closes the air outlet 12, it abuts against the transition position 32, thereby ensuring good support on the outer surface of the second damper 40 when the first damper 30 closes the air outlet 12. In other embodiments, a support strip or similar element can be provided at the bottom of the extended cavity 112 to support the first damper 30.

[0031] In this design, it is preferable that the top surface of the hot air duct 14 gradually decreases in height along the direction away from the air cavity 11, so as to guide the air to flow out more smoothly along the bottom of the hot air duct 14.

[0032] In this design, considering the difficulty of assembly and production, it is preferable that the top of the bathroom heater unit 10 is provided with a mounting plate 101 and a cover 102 covering the top of the mounting plate 101. The side walls and top walls of the air cavity 11 are arranged on the cover 102, and the exhaust port 13 is connected to the outer surface of the cover 102. The impeller 20, the first air damper 30, the first motor 31, the second air damper 40, the second motor 41, and the hot air duct 14 are all arranged on the mounting plate 101.

[0033] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A single-fan, double-door type bathroom heater, characterized in that, include: The bathroom heater unit (10) is provided with an air cavity (11) and a fan wheel (20) located in the air cavity (11). The air cavity (11) is provided with an air outlet (12) and a dehumidification port (13). The air outlet (12) is provided with a hot air duct (14) that connects to the bottom of the bathroom heater unit (10). The hot air duct (14) is provided with a heater (15). The bathroom heater unit (10) is provided with an air inlet that communicates with the air cavity (11). The first air damper (30) is pivotally connected to the air cavity (11). The main unit (10) of the bathroom heater is equipped with a first motor (31) that drives the first air damper (30) to switch between the air outlet (12) and the dehumidification outlet (13). The width of the air outlet (12) is smaller than the width of the dehumidification outlet (13) so that the first air damper (30) can completely close the air outlet (12) but can only partially close the dehumidification outlet (13). The second air damper (40) is pivotally connected to the air cavity (11). The main unit (10) of the bathroom heater is provided with a second motor (41) that drives the second air damper (40) to switch between the exhaust port (13) and the termination position. When the first damper (30) switches to the air outlet (12), the air outlet (12) is completely closed; when the first damper (30) switches to the humidification outlet (13) and the second damper (40) switches to the humidification outlet (13), the first damper (30) and the second damper (40) together close the humidification outlet (13); when the first damper (30) switches to the humidification outlet (13) and the second damper (40) switches to the end position, the humidification outlet (13) is partially opened.

2. A single-fan, double-door type bathroom heater as described in claim 1, characterized in that: The first damper (30) and the second damper (40) are located on both sides of the exhaust port (13), and the first damper (30) and the second damper (40) close the exhaust port (13) in a split manner.

3. A single-fan, double-door type bathroom heater as described in claim 1, characterized in that: The air cavity (11) includes a main cavity (111) that is circular or nearly circular and an extension cavity (112) connected to the main cavity (111). The impeller (20) is arranged in the main cavity (111), the air outlet (12) is located at the end of the extension cavity (112), and the dehumidification port (13) is located on the outer sidewall of the extension cavity (112).

4. A single-fan, double-door type bathroom heater as described in claim 3, characterized in that: The extended cavity (112) is shaped like a trumpet, gradually narrowing towards the end.

5. A single-fan, double-door type bathroom heater as described in claim 3, characterized in that: The distance between the impeller (20) and the inner wall of the main cavity (111) gradually increases in the direction toward the extension cavity (112).

6. A single-fan, double-door type bathroom heater as described in claim 3, characterized in that: The outer sidewall of the extended cavity (112) is tangent to the edge of the main cavity (111).

7. A single-fan, double-door type bathroom heater as described in claim 3, 4, 5, or 6, characterized in that: The inner wall of the main cavity (111) near the vent (13) has an outwardly recessed notch (42). This notch (42) is the end position of the second damper (40). When the second damper (40) is in the end position, the second damper (40) abuts against the inner wall of the notch (42) so that the edge of the second damper (40) is lower than the inner wall of the main cavity (111).

8. A single-fan, double-door type bathroom heater as described in claim 3, characterized in that: The intersection of the inner side wall of the extended cavity (112) and the inner wall of the main cavity (111) forms a transition position (32), and the first damper (30) abuts against the transition position (32) when closing the air outlet (12).

9. A single-fan, double-door type bathroom heater as described in claim 1, characterized in that: The height of the top surface of the hot air duct (14) gradually decreases in the direction away from the air cavity (11).

10. A single-fan, double-door type bathroom heater as described in claim 1, characterized in that: The top of the bathroom heater unit (10) is provided with a mounting plate (101) and a cover (102) covering the top of the mounting plate (101). The side wall and top wall of the air cavity (11) are arranged on the cover (102), and the exhaust port (13) is connected to the outer surface of the cover (102). The impeller (20), the first air damper (30), the first motor (31), the second air damper (40), the second motor (41), and the hot air duct (14) are all arranged on the mounting plate (101).

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