A bath heater

Abstract

The utility model provides a kind of bath heater, including shell, the shell is opened with air exchange and exhaust port, the shell is equipped with air supply air duct, air duct switching mechanism and a blowout volute;The air supply air duct is Archimedean spiral air duct, the blowout volute is located in air supply air duct, so that the air outlet of blowout volute is connected by air duct switching mechanism and air exchange, or so that the air outlet of blowout volute is connected by air duct switching mechanism and exhaust port.The utility model bath heater is equipped with air duct switching mechanism, uses one blowout volute to carry out air supply, can realize two functions of air exchange and air supply, air supply air duct uses Archimedean spiral air duct, air supply efficiency is high, while bath heater occupies space greatly reduces, so that bath heater has higher performance price ratio, and application range is also wider.

Description

Technical Field

[0001] This utility model specifically relates to a bathroom heater. Background Technology

[0002] Most bathroom heaters on the market currently use a dual-volute structure, with one volute for heating and the other for ventilation, resulting in a relatively large unit size. To achieve a greater airflow effect, a more powerful volute can usually be selected, or the air duct structure can be improved to increase air delivery efficiency while maintaining the same volute power. The air delivery efficiency of existing dual-volute bathroom heaters needs further improvement.

[0003] Therefore, it is necessary to provide a bathroom heater that is equipped with an air duct switching mechanism and uses a blower volute for air delivery, which can realize both ventilation and air supply functions. The space occupied by the bathroom heater is greatly reduced. Combined with the Archimedes spiral air duct, the air delivery efficiency is high, making the bathroom heater more cost-effective and with a wider range of applications. Utility Model Content

[0004] The purpose of this invention is to provide a bathroom heater that addresses the shortcomings of existing double-volute bathroom heaters, such as large space occupation and low air delivery efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A bathroom heater includes a housing with an air exchange port and an exhaust port. The housing is characterized by having an air supply duct, an air duct switching mechanism, and a blower volute inside. The air supply duct is an Archimedean spiral duct, and the blower volute is located within the air supply duct, such that the exhaust port of the blower volute is connected to the air exchange port via the air duct switching mechanism, or the exhaust port of the blower volute is connected to the exhaust port via the air duct switching mechanism.

[0007] In this invention, the air supply duct is enclosed by a first channel section, which is arranged in the shape of an Archimedean spiral.

[0008] The present invention can be improved as follows, further including a first channel and a second channel, wherein one end of the first channel is connected to the air supply duct to form an air exchange channel, and the other end is connected to the air exchange port; one end of the second channel is connected to the air supply duct to form an air outlet channel, and the other end is connected to the exhaust port.

[0009] In this invention, the air duct switching mechanism includes a motor, a fixed shaft, and a baffle; the output shaft of the motor is connected to the fixed shaft in a transmission manner, and the baffle is fixed on the fixed shaft.

[0010] Furthermore, the fixed shaft of the air duct switching mechanism is located at the connection between the first channel and the second channel.

[0011] Furthermore, the movable end of the baffle of the air duct switching mechanism is connected to one end of the first channel section during ventilation or exhaust. This arrangement makes the internal air duct structure of the bathroom heater more compact and occupies less space.

[0012] In this utility model, the first channel is formed by a first straight plate and a second straight plate facing each other; one end of the first straight plate is connected to the air exchange port, and the other end is connected to one end of the first channel section; one end of the second straight plate is connected to the air exchange port, and the other end is set facing the fixed shaft of the air duct switching mechanism.

[0013] In this invention, the second channel is a wedge-shaped air duct with a trapezoidal cross-section. This design allows for better connection with the supply air duct, reduces air resistance, and better directs airflow to the exhaust port.

[0014] Furthermore, the wedge-shaped air duct outlet is positioned directly opposite the exhaust vent, and a heater is installed at the wedge-shaped air duct outlet, with the heater's grille facing the exhaust vent. This heater placement ensures that the airflow is heated just before exiting the bathroom heater, minimizing heat loss and achieving better heating performance.

[0015] Furthermore, the height of the trapezoidal cross-section of the wedge-shaped air duct is less than the height of the supply air duct, creating a receiving area between the wedge-shaped air duct and the exhaust port, within which the heater is located. This design makes efficient use of space and helps to reduce the overall size of the bathroom heater / ventilation unit.

[0016] This invention can be improved by including a connecting channel, one end of which is connected to the air supply duct, and the other end to the second channel, so that the airflow from the air supply duct expands and is guided to the second channel after passing through the connecting channel. By expanding and guiding the airflow path through the connecting channel, the narrower air supply duct is connected and transitioned to the larger inlet and outlet of the second channel, so that the cross-section through which the airflow passes gradually increases until it matches the inlet of the second channel, ultimately achieving a larger air outlet range. At the same time, the air supply duct can be set narrower, improving air supply efficiency and reducing the space required for the bathroom heater, and the airflow only needs to be expanded at the end of the airflow outlet.

[0017] This invention can be improved as follows: a ring-shaped air outlet mechanism is fixedly connected to the exhaust port of the casing. The ring-shaped air outlet mechanism includes an outer shell and an inner shell. The outer shell is trumpet-shaped, and the inner shell is conical. The outer shell is fitted over the inner shell, forming a ring-shaped airflow channel between the outer shell and the inner shell. With this arrangement, the conical structure of the inner shell has low wind resistance and better air delivery effect. Combined with the trumpet-shaped outer shell, a ring-shaped airflow is formed, resulting in more uniform air delivery.

[0018] In this invention, the inlet of the annular air outlet mechanism is adapted to the exhaust port of the casing, and the outlet of the annular air outlet mechanism is circular. This design matches the airflow in the inlet and outlet channels, and through the guidance of the annular air outlet mechanism, ultimately forms an annular air outlet, improving the uniformity of the bathroom heater's airflow.

[0019] Furthermore, the inner shell is provided with flow-dividing grids, which are arranged along the direction of the conical generatrix. By setting the flow-dividing grids, the airflow direction is defined, making the airflow more uniform after passing through the annular airflow channel.

[0020] Furthermore, the inlet of the annular air outlet mechanism is rectangular, and the diversion grille is arranged along the diagonal of the rectangular inlet of the annular air outlet mechanism. This arrangement allows the diversion grille to better match the inlet, resulting in high air delivery efficiency.

[0021] This utility model has the following beneficial effects:

[0022] (1) The present invention is equipped with a duct switching mechanism. It uses a blower volute to deliver air, which can realize the two functions of ventilation and air supply. The air supply duct adopts the Archimedes spiral duct, which has high air supply efficiency. At the same time, the space occupied by the bathroom heater is greatly reduced, making the bathroom heater more cost-effective and its application range wider.

[0023] (2) This utility model of bathroom heater further reduces the space occupied by the air duct by optimizing the air outlet and ventilation channel, and improves the air supply efficiency. The air outlet is equipped with a ring air outlet mechanism structure, which improves the air outlet range, makes the air outlet more uniform, and improves the user experience. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the bathroom heater of this utility model;

[0026] Figure 2 This is the front view of the bathroom heater of this utility model;

[0027] Figure 3 This is a left view of the bathroom heater of this utility model;

[0028] Figure 4 This is a bottom view of the bathroom heater of this utility model;

[0029] Figure 5 This is a schematic diagram of the main structure of the bathroom heater of this utility model;

[0030] Figure 6 This is one of the schematic diagrams of the overall structure of the annular air outlet mechanism of this utility model;

[0031] Figure 7This is the second schematic diagram of the overall structure of the annular air outlet mechanism of this utility model;

[0032] Figure 8 This is a front view of the annular air outlet mechanism of this utility model;

[0033] Figure 9 This is a rear view of the annular air outlet mechanism of this utility model;

[0034] Figure 10 for Figure 8 AA view;

[0035] Figure 11 This is one of the schematic diagrams of the internal structure of the bathroom heater of this utility model;

[0036] Figure 12 This is the second schematic diagram of the internal structure of the bathroom heater of this utility model;

[0037] Figure 13 This is the third schematic diagram of the internal structure of the bathroom heater of this utility model;

[0038] Figure 14 This is a diagram showing the airflow path when the new type of bathroom heater is used for ventilation.

[0039] Figure 15 This is a diagram showing the airflow path when using the new type of bathroom heater.

[0040] The following are the markings in the attached diagram: 1. Housing; 2. Blower volute; 3. Heater; 4. Air supply duct; 5. First channel; 6. Second channel; 7. Connecting channel; 8. Duct switching mechanism; 9. Annular air outlet mechanism; 101. Air exchange port; 102. Air inlet; 103. Air outlet; 201. Air outlet; 202. Air inlet; 203. Rotary wheel; 401. First channel section; 501. First straight plate; 502. Second straight plate; 801. Motor; 802. Fixed shaft; 803. Baffle; 901. Outer shell; 902. Inner shell; 903. Diverter grille; 904. Inlet; 905. Outlet. Detailed Implementation

[0041] like Figure 1-15 The bathroom heater shown includes a housing 1, a blower housing 2, a heater 3, and a ring-shaped air outlet mechanism 9.

[0042] The top of the casing 1 has a circular air inlet 102 and a rectangular exhaust outlet 103. The exhaust outlet 103 is also connected to an annular air outlet mechanism 9, which has an annular airflow channel. A ventilation port 101 is opened on the side wall of the casing 1. With this arrangement, both the air inlet 102 and the exhaust outlet 103 are located at the top of the casing 1, which can realize the internal circulation of airflow in the bathroom space, improve the ventilation efficiency of the bathroom space, and facilitate rapid heating in the bathroom; at the same time, the air inlet 102 is located at the top of the casing 1, and the ventilation port 101 is located on the side wall of the casing 1, which can realize the circulation of airflow between the bathroom and the outside airflow, forming an internal-external circulation, and achieving a better ventilation effect.

[0043] In this embodiment, the annular air outlet mechanism 9 includes an outer shell 901 and an inner shell 902. The outer shell 901 is trumpet-shaped, and the inner shell 902 is conical. The outer shell 901 is fitted over the inner shell 902, forming an annular airflow channel between them. The inlet 904 of the annular air outlet mechanism 9 is rectangular, and the outlet 905 is circular. A diversion grille 903 is distributed on the inner shell 902. The diversion grille 903 is arranged along the generatrix of the conical shape and along the diagonal of the rectangular inlet 904 of the annular air outlet mechanism 9. This arrangement allows the diversion grille 903 to better match the inlet 904, resulting in high air delivery efficiency and uniform air distribution for the entire annular air outlet mechanism 9.

[0044] The housing 1 contains an air supply duct 4, a first channel 5, a second channel 6, an air duct switching mechanism 8, and a blower volute 2. During ventilation, the air outlet 201 of the blower volute 2 is connected to the ventilation port 101 via the air duct switching mechanism 8. During heating, the air outlet 201 of the blower volute 2 is connected to the exhaust port 103 via the air duct switching mechanism 8. The air duct switching mechanism 8 includes a motor 801, a fixed shaft 802, and a baffle 803. The output shaft of the motor 801 is connected to the fixed shaft 802. One end of the baffle 803 is fixed to the fixed shaft 802. The motor 801 drives the baffle 803 to rotate, guiding the airflow from the air supply duct 4 towards the ventilation port 101 or the exhaust port 103, thereby achieving both ventilation and heating functions.

[0045] Specifically, the air supply duct 4 is an Archimedean spiral duct, which is enclosed by a first channel section 401 arranged in an Archimedean spiral pattern. The blower housing 2 is located within the air supply duct 4, with its air inlet 202 directly opposite the air inlet 102 at the top of the housing 1. One end of the first channel 5 connects to the air supply duct 4 to form a ventilation channel, and the other end connects to the ventilation inlet 101. One end of the second channel 6 connects to the air supply duct 4 to form an air outlet channel, and the other end connects to the exhaust outlet 103. The fixed shaft 802 of the duct switching mechanism 8 is located at the connection between the first channel 5 and the second channel 6. The movable end of the baffle 803 of the duct switching mechanism 8 connects to one end of the first channel section 401 during ventilation or exhaust. In this embodiment, the first channel 5 is formed by a first straight plate 501 and a second straight plate 502 facing each other. One end of the first straight plate 501 is connected to the air vent 101, and the other end is connected to one end of the first channel segment 401. One end of the second straight plate 502 is connected to the air vent 101, and the other end is positioned opposite the fixed shaft 802. The second channel 6 is a wedge-shaped air duct with a trapezoidal cross-section. The wedge-shaped air duct outlet 905 is positioned opposite the exhaust vent 103, and a heater 3 is provided at the wedge-shaped air duct outlet 905. The grille of the heater 3 is positioned opposite the exhaust vent 103. In order to reduce the overall space of the bathroom heater, the height of the trapezoidal cross-section of the wedge-shaped air duct is less than the height of the supply air duct 4, so that a receiving area is formed between the wedge-shaped air duct and the exhaust vent 103, and the heater 3 is located within the receiving area.

[0046] In this invention, the bathroom heater also includes a connecting channel 7. One end of the connecting channel 7 is connected to the air supply duct 4, and the other end is connected to the second channel 6, so that the airflow from the air supply duct 4 expands through the connecting channel 7 and is guided to the second channel 6. The connecting channel 7 facilitates the transition of the airflow from the air supply duct 4 to the second channel 6 and the air outlet 201, thereby increasing the cross-section of the airflow channel to achieve a wider airflow range, while improving air supply efficiency and reducing the space occupied by the entire airflow channel inside the bathroom heater, thus reducing the size of the bathroom heater.

[0047] This utility model of bathroom heater adopts an air duct switching mechanism 8 and a blower volute 2, combined with an Archimedes spiral air duct, which can realize both ventilation and blowing functions. It has high air delivery efficiency, reduces costs, achieves circular air outlet, occupies little space, has lower requirements for bathroom ceiling space, and has a wider range of applications.

[0048] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A bathroom heater, comprising a housing (1), wherein the housing (1) has a ventilation port (101) and an exhaust port (103), characterized in that, The housing (1) is provided with an air supply duct (4), an air duct switching mechanism (8), and a blower volute (2); the air supply duct (4) is an Archimedean spiral air duct, and the blower volute (2) is located in the air supply duct (4), so that the air outlet (201) of the blower volute (2) is connected to the air exchange port (101) through the air duct switching mechanism (8), or so that the air outlet (201) of the blower volute (2) is connected to the exhaust port (103) through the air duct switching mechanism (8).

2. The bath heater according to claim 1, characterized in that, The air supply duct (4) is enclosed by a first channel section (401), which is arranged in the shape of an Archimedean spiral.

3. The bath heater according to claim 2, characterized in that, It also includes a first channel (5) and a second channel (6). One end of the first channel (5) is connected to the air supply duct (4) to form an air exchange channel, and the other end is connected to the air exchange port (101). One end of the second channel (6) is connected to the air supply duct (4) to form an air outlet channel, and the other end is connected to the exhaust port (103).

4. The bath heater as claimed in claim 3, wherein, The air duct switching mechanism (8) includes a motor (801), a fixed shaft (802), and a baffle (803); the output shaft of the motor (801) is connected to the fixed shaft (802) for transmission, and the baffle (803) is fixed on the fixed shaft (802); the fixed shaft (802) of the air duct switching mechanism (8) is located at the connection between the first channel (5) and the second channel (6); the movable end of the baffle (803) of the air duct switching mechanism (8) is connected to one end of the first channel section (401) during ventilation or exhaust.

5. The bath heater according to any one of claims 3-4, characterized in that, The first channel (5) is formed by a first straight plate (501) and a second straight plate (502) facing each other; one end of the first straight plate (501) is connected to the air exchange port (101), and the other end is connected to one end of the first channel section (401); one end of the second straight plate (502) is connected to the air exchange port (101), and the other end is set facing the fixed shaft (802) of the air duct switching mechanism (8).

6. The bath heater according to claim 5, characterized in that, The second channel (6) is a wedge-shaped air duct with a trapezoidal cross section; the wedge-shaped air duct outlet (905) is set directly opposite the exhaust port (103), and a heater (3) is provided at the wedge-shaped air duct outlet (905), with the grille of the heater (3) set directly opposite the exhaust port (103).

7. The bath heater as claimed in claim 6, wherein, The height of the trapezoidal cross section of the wedge-shaped air duct is less than the height of the air supply duct (4), so that a receiving area is formed between the wedge-shaped air duct and the exhaust port (103), and the heater (3) is located in the receiving area.

8. The bath heater as claimed in claim 5, wherein, It also includes a connecting channel (7), one end of which is connected to the air supply duct (4) and the other end is connected to the second channel (6), so that the airflow from the air supply duct (4) expands through the connecting channel (7) and is guided to the second channel (6).

9. The bath heater according to any one of claims 1 to 4, wherein An annular air outlet mechanism (9) is fixedly connected to the exhaust port (103) of the housing (1). The annular air outlet mechanism (9) includes an outer shell (901) and an inner shell (902). The outer shell (901) is trumpet-shaped, and the inner shell (902) is conical. The outer shell (901) is fitted over the inner shell (902), so that an annular airflow channel is formed between the outer shell (901) and the inner shell (902).

10. The bath heater as claimed in claim 9, wherein, The inlet (904) of the annular air outlet mechanism (9) is adapted to the exhaust port (103) of the casing (1), and the outlet (905) of the annular air outlet mechanism (9) is circular; a diversion grille (903) is distributed on the inner shell (902), and the diversion grille (903) is arranged along the direction of the conical generatrix; the inlet (904) of the annular air outlet mechanism (9) is rectangular, and the diversion grille (903) is arranged along the diagonal direction of the rectangular inlet (904) of the annular air outlet mechanism (9).

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