A type of bathroom heater

Abstract

This utility model provides a bathroom heater / ventilation unit, including a housing with an air exchange port and an exhaust port. Inside the housing is a blower volute, whose rotating wheel has two layers of blades. One layer of blades is arranged counter-clockwise, and the other layer is arranged clockwise, giving the blower volute two air outlets. One outlet is connected to the air exchange port via an air exchange channel, and the other outlet is connected to the exhaust port via an exhaust channel. Both the air exchange and exhaust channels are Archimedean spiral air ducts. This bathroom heater / ventilation unit uses a bidirectional blower volute, combined with independent Archimedean spiral air ducts for both the air exchange and exhaust channels, optimizing the airflow path, improving the air delivery efficiency of the unit, reducing the space occupied, and broadening its application range.

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 double-volute structure, with one volute for heating and the other for ventilation. To achieve a larger air supply effect, a higher-power volute is usually required, or the air delivery efficiency needs to be improved while maintaining the same volute power. This typically results in a larger unit size. How to further improve the air delivery efficiency of existing bathroom heaters while reducing the space they occupy and increasing space utilization is a pressing technical problem that needs to be solved.

[0003] Therefore, it is necessary to provide a bathroom heater that uses a bidirectional blowing volute for air delivery, and both the ventilation channel and the air supply channel adopt the Archimedes spiral air duct, which greatly improves the air delivery efficiency of the bidirectional blowing volute, reduces the space required for the bathroom heater, has a higher cost performance, and a wider range of applications. Utility Model Content

[0004] The purpose of this utility model is to provide a bathroom heater that solves the shortcomings of existing bathroom heaters, such as large space occupation and low air supply efficiency.

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

[0006] A bathroom heater, characterized in that it includes a housing with an air vent and an exhaust vent; a blower volute is provided inside the housing, and the rotor of the blower volute has two layers of blades, wherein one layer of blades is arranged counterclockwise and the other layer of blades is arranged clockwise, so that the blower volute has two air outlets, one air outlet is connected to the air vent through an air exchange channel, and the other air outlet is connected to the exhaust vent through an exhaust channel; the air exchange channel is an Archimedean spiral air duct; the exhaust channel is an Archimedean spiral air duct.

[0007] In this invention, the ventilation channel and the air outlet channel are stacked. This arrangement reduces the space occupied by the channels inside the casing, thereby reducing the overall size of the bathroom heater, resulting in high space utilization and wider applicability.

[0008] In this invention, the ventilation channel is formed by sequentially connecting and enclosing a first air guide section, a second air guide section, a first housing section, and a third air guide section. The ventilation port is located at the end of the ventilation channel, between the first and third air guide sections. This design makes efficient use of the housing structure and internal space, reducing the size of the bathroom heater / ventilation unit.

[0009] Furthermore, the first air guide section is an arc-shaped plate, the second air guide section is an arc-shaped plate, and the third air guide section is a straight plate. This configuration allows the ventilation channel to achieve higher air delivery efficiency.

[0010] In this invention, the air outlet channel is formed by sequentially connecting and enclosing a fourth air guide section, a second housing section, a fifth air guide section, and a third housing section. The exhaust port is located at the end of the air outlet channel, between the fourth air guide section and the third housing section. This design makes efficient use of the casing structure and internal space, reducing the size of the bathroom heater / ventilation unit.

[0011] This invention can be improved by further including an airflow guiding channel connected to the outlet channel; the airflow guiding channel is a spiral channel, and its width gradually increases spirally from the inlet to the outlet. With this configuration, the airflow guiding channel guides the airflow exiting the outlet channel, and the airflow generated by the Archimedean spiral duct of the outlet channel connects with the spiral airflow guiding channel with low loss, reducing losses and improving air delivery efficiency.

[0012] Furthermore, the airflow guiding channel is formed by a fourth air guide section and a sixth air guide section, the sixth air guide section is connected to the third shell section, and the exhaust port is located at the end of the airflow guiding channel.

[0013] In this invention, the fourth, fifth, and sixth air guide sections are all curved plates. This configuration allows for higher air delivery efficiency in the ventilation channel.

[0014] In this invention, the first air guide section and the fifth air guide section are respectively positioned opposite the two layers of blades of the blower volute, and the height of the first air guide section and the fifth air guide section is not higher than the height of a single layer of blades of the blower volute.

[0015] In some embodiments of this invention, the overlapping portion of the ventilation channel and the air outlet channel is hollowed out. This design appropriately reduces costs; although the air delivery efficiency is slightly lower, it offers better cost-effectiveness.

[0016] In this invention, a heater is provided inside the airflow guiding channel.

[0017] In this utility model, the housing is also provided with an air inlet, which is positioned directly opposite the air inlet of the blower volute.

[0018] In some embodiments of this utility model, the air inlet is located at the top of the casing, the ventilation port is located on the side wall of the casing, and the exhaust port is located at the top of the casing, allowing airflow to exit from the top of the casing. This arrangement, with both the air inlet and exhaust port located at the top of the casing, enables internal airflow circulation within the bathroom, improving ventilation efficiency and facilitating rapid heating. Simultaneously, the location of the air inlet at the top of the casing and the ventilation port on the side wall allows for airflow circulation between the bathroom and the outside airflow, forming an internal-external circulation.

[0019] Furthermore, a flow guide, which is an arc-shaped guide plate, is provided at the exhaust vent. The flow guide changes the airflow direction, minimizing losses.

[0020] This utility model has the following beneficial effects:

[0021] (1) The present invention adopts a bidirectional blowing volute, and the ventilation channel and the air outlet channel are both independent Archimedes spiral air ducts, which optimize the airflow path, improve the air delivery efficiency of the air supply channel of the bathroom heater, reduce the space occupied by the bathroom heater, and have a wider range of applications.

[0022] (2) When the ventilation channel and the air outlet channel of this utility model are stacked, the overlapping part is hollowed out, which reduces the air supply efficiency. However, since the cost is reduced even more, the cost performance is higher and the product has better market competitiveness. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the overall structure of the bathroom heater according to Embodiment 1 of this utility model;

[0025] Figure 2 This is a front view of the bathroom heater according to Embodiment 1 of this utility model;

[0026] Figure 3 This is a left view of the bathroom heater according to Embodiment 1 of this utility model;

[0027] Figure 4 This is a bottom view of the bathroom heater according to Embodiment 1 of this utility model;

[0028] Figure 5 This is one of the internal structural diagrams of the bathroom heater according to Embodiment 1 of this utility model;

[0029] Figure 6 This is the second internal structural diagram of the bathroom heater in Embodiment 1 of this utility model;

[0030] The following are the markings in the attached diagram: 1. Housing; 2. Blower volute; 3. Heater; 4. Ventilation channel; 5. Air outlet channel; 6. Airflow guiding channel; 7. Guide component; 8. First air guide section; 9. Second air guide section; 10. Third air guide section; 11. Fourth air guide section; 12. Fifth air guide section; 13. Sixth air guide section; 14. First housing section; 15. Second housing section; 16. Third housing section; 101. Ventilation port; 102. Air inlet; 103. Exhaust port; 201. Air outlet; 202. Air inlet; 203. Rotary wheel. Detailed Implementation

[0031] like Figure 1-6 The bathroom heater shown includes a housing 1, a blower housing 2, and a heater 3.

[0032] The top of the casing 1 has a circular air inlet 102 and a rectangular exhaust vent 103, while the side wall has a ventilation vent 101. This arrangement, with both the air inlet 102 and exhaust vent 103 located at the top of the casing 1, allows for internal airflow circulation within the bathroom, improving ventilation efficiency and facilitating rapid heating. Simultaneously, the location of the air inlet 102 at the top and the ventilation vent 101 on the side wall of the casing 1 enables airflow circulation between the bathroom and the outside, creating an internal-external circulation for better ventilation.

[0033] The housing 1 contains a blower volute 2, with its air inlet 202 facing the air inlet 102 at the top of the housing 1. The rotor 203 of the blower volute 2 has two layers of blades, one layer of blades arranged counterclockwise and the other layer of blades arranged clockwise, giving the blower volute 2 two air outlets 201. One air outlet 201 is connected to the air exchange port 101 through the ventilation channel 4, and the other air outlet 201 is connected to the exhaust port 103 through the exhaust channel 5. The ventilation channel 4 and the exhaust channel 5 are both complete Archimedean spiral air ducts. With this configuration, the clockwise and counterclockwise rotation of the blower housing 2's rotating wheel 203 creates different airflow outlets 201, which are respectively blown through the ventilation channel 4 to the ventilation port 101 and through the air outlet channel 5 to the exhaust port 103. Thus, the blower housing 2 can perform two functions: ventilation or heating. This design offers high structural utilization and reduces the space occupied by the bathroom heater / ventilation unit, while also providing higher air delivery efficiency. In this embodiment, to achieve even higher air delivery efficiency, an airflow guiding channel 6 is also provided. The airflow guiding channel 6 is connected to the air outlet channel 5, and the exhaust port 103 is located at the end of the airflow guiding channel 6.

[0034] Specifically, the ventilation channel 4 is an Archimedean spiral duct formed by sequentially connecting and enclosing a first guide section 8, a second guide section 9, a first housing section 14, and a third guide section 10. The ventilation port 101 is located at the end of the ventilation channel 4, between the first guide section 8 and the third guide section 10. The air outlet channel 5 is an Archimedean spiral duct formed by sequentially connecting and enclosing a fourth guide section 11, a second housing section 15, a fifth guide section 12, and a third housing section 16. The airflow guiding channel 6 is formed by enclosing a fourth guide section 11 and a sixth guide section 13, with the sixth guide section 13 connected to the third housing section 16. The airflow guiding channel 6 is a spiral channel, with its width gradually increasing spirally from the inlet to the outlet. The exhaust port 103 is located at the end of the airflow guiding channel 6, and a heater 3 is installed inside the airflow guiding channel 6. In this embodiment, to improve the air delivery efficiency of the blower volute 2, the first guide section 8 is an arc-shaped plate, the second guide section 9 is an arc-shaped plate, and the third guide section 10 is a straight plate; the fourth guide section 11 is an arc-shaped plate, the fifth guide section 12 is an arc-shaped plate, and the sixth guide section 13 is an arc-shaped plate. The first guide section 8 and the fifth guide section 12 are respectively directly opposite the two layers of blades of the blower volute 2 (it can be understood that the height of the first guide section 8 and the fifth guide section 12 is not higher than the height of a single layer of blades of the blower volute 2 rotor 203, so as to avoid affecting the air delivery of other air ducts).

[0035] To reduce the space occupied by the channels within the casing 1, the ventilation channel 4 and the air outlet channel 5 are stacked, with the overlapping portion of the ventilation channel 4 and the air outlet channel 5 being hollowed out. By eliminating the partition structure at the connection point of the overlapping portion of the ventilation channel 4 and the air outlet channel 5, a higher cost-performance ratio can be achieved despite a slight reduction in air supply efficiency.

[0036] In this embodiment, a guide vane 7 is provided at the exhaust vent 103. The guide vane 7 is an arc-shaped guide plate. The guide vane 7 is used to change the direction of the airflow and minimize losses.

[0037] This utility model of bathroom heater adopts a double-layer blower volute 2, combined with an Archimedes spiral air duct for air supply (ventilation or exhaust), which reduces costs while having higher blowing efficiency, occupies little space, has lower requirements for bathroom ceiling space, and has a wider range of applications.

[0038] 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 bath heater, characterized by, The device includes a housing (1) with an air exchange port (101) and an exhaust port (103). Inside the housing (1) is a blower volute (2). The rotor (203) of the blower volute (2) has two layers of blades, one layer of blades being arranged counterclockwise and the other layer of blades being arranged clockwise, so that the blower volute (2) has two air outlets (201). One air outlet (201) is connected to the air exchange port (101) through an air exchange channel (4), and the other air outlet (201) is connected to the exhaust port (103) through an exhaust channel (5). The air exchange channel (4) is an Archimedes spiral air duct. The exhaust channel (5) is an Archimedes spiral air duct. The air exchange channel (4) and the exhaust channel (5) are stacked.

2. The bath heater as claimed in claim 1, wherein, It also includes an airflow guiding channel (6), which is connected to the air outlet channel (5); the airflow guiding channel (6) is a spiral channel, and the channel width of the airflow guiding channel (6) gradually spirals from the channel inlet to the channel outlet.

3. The bath heater according to claim 2, characterized in that, The ventilation channel (4) is formed by connecting and enclosing the first air guide section (8), the second air guide section (9), the first shell section (14), and the third air guide section (10) in sequence. The ventilation port (101) is located at the end of the ventilation channel (4) and between the first air guide section (8) and the third air guide section (10).

4. The bath heater as claimed in claim 3, wherein, The first air guide section (8) is an arc-shaped plate, the second air guide section (9) is an arc-shaped plate, and the third air guide section (10) is a straight plate.

5. The bath heater as claimed in claim 2, wherein, The air outlet channel (5) is formed by connecting and enclosing the fourth air guide section (11), the second shell section (15), the fifth air guide section (12) and the third shell section (16) in sequence. The exhaust port (103) is located at the end of the air outlet channel (5) and between the fourth air guide section (11) and the third shell section (16).

6. The bath heater according to claim 5, characterized in that, The airflow guiding channel (6) is formed by the fourth air guide section (11) and the sixth air guide section (13). The sixth air guide section (13) is connected to the third shell section (16). The exhaust port (103) is located at the end of the airflow guiding channel (6).

7. The bath heater according to claim 6, characterized in that, The fourth air guide section (11) is an arc-shaped plate, the fifth air guide section (12) is an arc-shaped plate, and the sixth air guide section (13) is an arc-shaped plate.

8. The bath heater according to any one of claims 2 to 7, wherein The overlapping portion of the ventilation channel (4) and the air outlet channel (5) is hollowed out.

9. The bath heater as claimed in claim 8, wherein, A heater (3) is provided in the airflow guiding channel (6); a guide (7) is provided at the exhaust port (103), and the guide (7) is an arc-shaped guide plate.

10. The bath heater as claimed in claim 9, wherein, The housing (1) is also provided with an air inlet (102), which is directly opposite to the air inlet (202) of the blower volute (2); the air inlet (102) is located at the top of the housing (1), the air exchange port (101) is located on the side wall of the housing (1), and the exhaust port (103) is located at the top of the housing (1), so that the airflow is blown out from the top of the housing (1).

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