Air guide assembly and bath heater

Abstract

The air guide assembly comprises an upper cover and a lower cover, a diffusion cavity is formed between the upper cover and the lower cover, the upper cover is provided with a communication port, the lower cover is provided with an annular air outlet, and the communication port, the diffusion cavity and the annular air outlet are communicated with one another. A first diffusion part is arranged on the side, close to the communicating opening, of the diffusion cavity, and a second diffusion part is arranged on the side, close to the annular air outlet, of the diffusion cavity so that the diffusion cavity can be divided into a plurality of cavity bodies with different sectional areas. Compared with the prior art, the air guide assembly and the bath heater have the advantages that the diffusion part is arranged in the diffusion cavity, so that the air speed is increased, and uniform air outlet is guaranteed.

Description

Technical Field

[0001] The present invention relates to an air guiding component and a bathroom heater, belonging to the technical field of household appliances. Background Art

[0002] For existing bathroom heaters with warm air and ventilation functions, their working principle is to drive the air wheel to rotate by a motor to generate air flow, and use PTC heating to warm. In order to ensure the heating effect, most of them set the PTC at the air outlet, that is, make the PTC into a shape adapted to the air outlet. However, in this way, the production cost is increased, and at the same time, the uniformity of the air outlet cannot be guaranteed.

[0003] In view of this, it is necessary to improve the existing bathroom heaters to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an air guiding component, which can not only increase the wind speed but also ensure the uniformity of the air outlet.

[0005] To achieve the above purpose, the present invention provides an air guiding component, including an upper cover and a lower cover. An expansion chamber is formed between the upper cover and the lower cover. The upper cover is provided with a communication port, and the lower cover is provided with an annular air outlet. The communication port, the expansion chamber and the air outlet are communicated with each other. A first expansion part is provided on one side of the expansion chamber close to the air flow channel, and a second expansion part is provided on one side close to the annular air outlet, so as to divide the expansion chamber into a plurality of cavities with different cross-sectional areas.

[0006] As a further improvement of the present invention, in the extending direction of the expansion chamber, the cross-sectional area of the cavity gradually increases first and then gradually decreases between the first expansion part and the second expansion part, and gradually increases between the second expansion part and the annular air outlet.

[0007] As a further improvement of the present invention, at the positions of the first expansion part and the second expansion part, the distance between the upper cover and the lower cover is less than the distance between the upper cover and the lower cover at any other position.

[0008] As a further improvement of the present invention, the inner wall surface of the upper cover close to the communication port shrinks towards the lower cover, and jointly forms the first expansion part with the lower cover.

[0009] As a further improvement of the present invention, the side of the upper cover close to the annular air outlet shrinks towards the lower cover, and jointly forms the second expansion part with the lower cover.

[0010] As a further improvement of the present invention, it is defined that the upper cover includes a first toroidal surface and a second toroidal surface. The first toroidal surface connects the first diffuser portion and the second diffuser portion. The second toroidal surface connects the second diffuser portion and the annular air outlet, and a third diffuser portion is further provided on the second toroidal surface.

[0011] As a further improvement of the present invention, the communication port is rectangularly arranged, and a convex block is protruded at a position corresponding to the short side of the communication port on the second toroidal surface. The convex block and the lower cover together form the third diffuser portion.

[0012] The object of the present invention is to provide a bathroom heater, which can not only increase the wind speed but also ensure the uniformity of the air outlet.

[0013] To achieve the above object, the present invention provides a bathroom heater, including:

[0014] A housing, in which an assembly groove, an air inlet communicating with the assembly groove, and an air flow passage are provided;

[0015] A motor assembly, housed in the assembly groove;

[0016] An impeller, housed in the assembly groove and disposed opposite to the air inlet, the impeller is connected to the motor assembly and driven to rotate by the motor assembly;

[0017] A heating element, fixed inside the air flow passage; and

[0018] The aforementioned air guiding assembly;

[0019] Wherein, the communication port communicates with the air flow passage, so that the air flow driven by the rotation of the impeller is discharged from the annular air outlet after passing through the air inlet, the air flow passage, the communication port, and the diffuser cavity.

[0020] As a further improvement of the present invention, the heating element is fixed at the connection position between the air flow passage and the diffuser cavity, and the air outlet direction of the heating element is parallel to the central axis direction of the impeller.

[0021] As a further improvement of the present invention, the center point of the heating element is located on the central axis of the air guiding assembly. As a further improvement of the present invention, the air flow passage is fan-shaped, and is provided with an air inlet facing the assembly groove and an air outlet facing the diffuser cavity, and the air inlet and the air outlet are perpendicular to each other.

[0022] As a further improvement of the present invention, a positioning block is provided at one end of the air outlet of the air flow passage, and the heating element is fixed on the positioning block, so that the direction of the air flow passing through the heating element is parallel to the axis direction of the impeller.

[0023] The beneficial effects of the present invention are as follows: By providing a first diffuser portion on the side of the diffuser chamber close to the communication port and a second diffuser portion on the side close to the annular air outlet, the air guiding assembly of the present invention can divide the diffuser chamber into multiple cavities with different cross-sectional areas, which not only increases the wind speed but also makes the air outlet uniform, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a bathroom heater conforming to a preferred embodiment of the present invention.

[0025] Figure 2 is Figure 1 An exploded view of the bathroom heater shown after removing the air guiding assembly.

[0026] Figure 3 is Figure 2 A partial enlarged view of...

[0027] Figure 4 is Figure 1 An exploded view of the air guiding assembly in...

[0028] Figure 5 is Figure 3 A schematic structural diagram of the air outlet frame in...

[0029] Figure 6 is Figure 3 A schematic structural diagram of the upper cover in...

[0030] Figure 7 is Figure 1 A sectional view of the bathroom heater shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Please refer to Figures 1 to 5 As shown, the present invention discloses a bathroom heater 100, which includes a housing 1. The housing 1 is provided with an annular air outlet 11, and an assembly groove 12, an air inlet 13, and an air outlet flow channel 14 communicating with the assembly groove 12 are provided inside the housing 1. A motor assembly 2 and an impeller 3 fixedly connected to the motor assembly 2 are fixedly received in the assembly groove 12. The impeller 3 is disposed opposite to the air inlet 13 and is driven to rotate by the motor assembly 2. When the motor assembly 2 drives the impeller 3 to rotate, external air flows into the interior of the housing 1 from the air inlet 13, and is discharged from the annular air outlet 11 after passing through the air outlet flow channel 14.

[0033] The bath heater 100 further includes a heating element 4 fixed inside the air outlet channel 14. After the air flow enters the air outlet channel 14, it passes through the heating element 4 to be heated, and warm air is discharged from the annular air outlet 11 to achieve the heating effect.

[0034] Specifically, the air outlet channel 14 is fan-shaped, and is provided with an air inlet 140 facing the assembly groove 12 and an air outlet 141 communicating with the annular air outlet 11. The air inlet 140 and the air outlet 141 are perpendicular to each other. A positioning block 142 is provided at one end of the air outlet 141 of the air outlet channel 14, and the heating element 4 is fixed on the positioning block 142, so that the direction of the air flow passing through the heating element 4 is parallel to the axis direction of the impeller 3, that is, the air outlet direction of the heating element 4 is parallel to the central axis direction of the impeller 3. In this way, the heating effect can be further improved. In this embodiment, the positioning block 142 is arranged on the inner wall surface of the air outlet channel 14, and a positioning portion 144 is further provided on the outer periphery of the air outlet channel 14. The positioning portion 144 and the positioning block 142 cooperate with each other to fix the heating element 4 on one side of the air outlet 141.

[0035] Preferably, the bath heater 100 further includes a wind guiding assembly 5 connected to the air outlet channel 14. It should be noted that the wind guiding assembly 5 is not only used for the bath heater in this embodiment, but can be applied to any other electronic device that requires air outlet.

[0036] The wind guiding assembly 5 is provided with a diffuser chamber 50 communicating the air outlet channel 14 and the annular air outlet 11. The heating element 4 is fixed at the connection position between the air outlet channel 14 and the diffuser chamber 50, so that the heated air flow is discharged from the annular air outlet 11 after passing through the wind guiding assembly 5. In this way, the noise generated by the heating element 4 can be consumed in the wind guiding assembly 5 to achieve the purpose of noise reduction.

[0037] In this embodiment, an air outlet cover 143 is provided at one end of the air outlet channel 14 close to the diffuser chamber 50. The air outlet cover 143 and the positioning block 142 cooperate with each other to limit the heating element 4 inside the air outlet channel 14, and the air outlet 141 is formed at the air outlet cover 143. Of course, in other embodiments, the heating element 4 can also be fixed in other ways, as long as the heating element 4 is inside the air outlet channel 14, and no limitation is made thereto.

[0038] Please combine Figure 7As shown, a first diffuser portion 501 is provided on one side of the diffuser chamber 50 close to the air outlet channel 14, and a second diffuser portion 502 is provided on one side close to the annular air outlet 11, so as to divide the diffuser chamber 50 into a plurality of cavities with different cross-sectional areas. In this embodiment, both the first diffuser portion 501 and the second diffuser portion 502 are arranged according to the Venturi principle, so that the air flow entering the diffuser chamber 50 can be accelerated in two stages respectively when passing through the first diffuser portion 501 and the second diffuser portion 502. While increasing the wind speed, it can also make the air outlet uniform. At the same time, the setting of separating the air guiding assembly 5 from the heating element 4 further saves the production cost.

[0039] Specifically, in the extending direction of the diffuser chamber 50, the cross-sectional area of the cavity gradually increases first and then gradually decreases between the first diffuser portion 501 and the second diffuser portion 502, and gradually increases between the second diffuser portion 502 and the annular air outlet 11.

[0040] The air guiding assembly 5 includes an upper cover 51 and a lower cover 52. The diffuser chamber 50 is formed between the upper cover 51 and the lower cover 52. And at the positions of the first diffuser portion 501 and the second diffuser portion 502, the distance between the upper cover 51 and the lower cover 52 is less than the distance between the upper cover 51 and the lower cover 52 at any other position.

[0041] In this embodiment, an air outlet frame 53 is fixed between the upper cover 51 and the lower cover 52. The annular air outlet 11 is formed on the air outlet frame 53. The annular air outlet 11 includes a first annular air outlet 111 and a second annular air outlet 112 arranged around the outside of the first annular air outlet 111 to ensure uniform air outlet. The air outlet frame 53 further includes a bearing portion 531. The air outlet frame 53 is fixed on the upper cover 51, and the lower cover 52 is fixedly received on the bearing portion 531. In this embodiment, the air guiding assembly 5 further includes a mounting plate 54 connected to the lower cover 52. The mounting plate 54 is used to fix the bathroom heater 100. In this way, the air guiding frame of the air guiding assembly 5 is realized. Of course, the mounting plate 54 in the present invention is specially provided to adapt to the bathroom heater in this embodiment and is not indispensable. In other embodiments, whether the mounting plate 54 is installed can be selected according to actual needs, and no limitation is made thereto.

[0042] In this embodiment, the lower cover 52 also plays a role of shunting, so as to make the air flow entering the diffuser chamber 50 flow towards the periphery and discharge from the annular air outlet 11. And setting the annular air outlet 11 in an annular structure is also more conducive to ensuring the uniformity of air outlet.

[0043] Please combine Figure 6As shown, the upper cover 51 is provided with a communication port 510 communicating with the air outlet channel 14. The inner wall surface of the upper cover 51 near the communication port 510 shrinks towards the lower cover 52, and together with the lower cover 52, forms the first diffuser 501. From the perspective of the cavity, the first diffuser 501 is a cavity that first shrinks and then expands. On this basis, the airflow passing through the first diffuser 501 will be accelerated to increase the air outlet intensity.

[0044] The side of the upper cover 51 near the annular air outlet 11 shrinks towards the lower cover 52, and together with the lower cover 52, forms the second diffuser 502. From the perspective of the cavity, the second diffuser 502 is also a cavity that first shrinks and then expands. On this basis, the airflow passing through the second diffuser 502 will be accelerated to increase the air outlet intensity. After the airflow enters the diffuser cavity 50, it is accelerated twice at the first diffuser 501 and the second diffuser 502 respectively. While increasing the wind speed, it also makes the airflow uniform at the annular air outlet 11.

[0045] It is defined that the upper cover 51 includes a first ring surface 511 and a second ring surface 512. The first ring surface 511 connects the first diffuser 501 and the second diffuser 502, and the second ring surface 512 connects the second diffuser 502 and the annular air outlet 11. A third diffuser (not shown) is also provided on the second ring surface 512. By setting the third diffuser, the uniformity of the air outlet is further ensured.

[0046] Specifically, the communication port 510 is rectangular. In the direction of the two short sides opposite to the communication port 510, convex blocks 5121 are correspondingly protruded on the second ring surface 512. The convex blocks 5121 and the lower cover 52 together form the third diffuser. Since the communication port 510 is rectangular, the air volume in the long side direction is more than that in the short side direction. Therefore, by setting the third diffuser in the short side direction, the air flow velocity in the short side direction is further increased to ensure the uniform air outlet of the bathroom heater 100.

[0047] On the contrary, a flat concave surface 5122 opposite to the convex blocks 5121 is provided on the outer wall surface of the second ring surface 512. The flat concave surface 5122 corresponds to the convex blocks 5121 to ensure that the diffusion efficiency of the third diffuser meets the actual requirements. It should be noted that the flat concave surface 5122 must be provided. When the protruding amplitude of the convex blocks 5121 is large, the concave amplitude of the flat concave surface 5122 should also increase accordingly to compensate for the convex blocks 5121 and ensure that the diffusion rate meets the diffusion requirements, and vice versa.

[0048] The ceiling heater 100 further includes an installation groove 15 disposed opposite to the assembly groove 12. A suction port 151 corresponding to the air inlet 13 is formed at the top of the installation groove 15, and a ventilation port 152 is formed at the side of the installation groove 15. The suction port 151 and the ventilation port 152 are in communication with each other. A ventilation component 153 is fixed in the installation groove 15. When the ventilation component 153 operates, it sucks external air flow into the housing 1 from the ventilation port 152 and discharges it from the ventilation port 152. In this way, the ventilation function of the ceiling heater 100 is realized, and the ceiling heater 100 has two modes, namely a heating mode and a ventilation mode, further improving the user experience.

[0049] In summary, for the air guiding component 5 and the ceiling heater 100 of the present invention, by providing a first diffusing portion 501 on the side of the diffusing cavity 50 close to the communication port 510 and a second diffusing portion 502 on the side close to the annular air outlet 11, the diffusing cavity 50 can be divided into a plurality of cavities with different cross-sectional areas, which not only increases the wind speed but also makes the air outlet uniform, improving the user experience.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An air guiding component, characterized in that: It includes an upper cover (51) and a lower cover (52). A diffuser chamber (50) is formed between the upper cover (51) and the lower cover (52). The upper cover (51) is provided with a communication port (510), and the lower cover (52) is provided with an annular air outlet (11). The communication port (510), the diffuser chamber (50) and the annular air outlet (11) are in communication with each other. A first diffuser portion (501) is provided on one side of the diffuser chamber (50) close to the communication port (510), and a second diffuser portion (502) is provided on one side close to the annular air outlet (11), so as to divide the diffuser chamber (50) into a plurality of cavities with different cross-sectional areas.

2. The air guiding assembly according to claim 1, wherein: In the extending direction of the diffuser chamber (50), the cross-sectional area of the cavity gradually increases first and then gradually decreases between the first diffuser portion (501) and the second diffuser portion (502), and gradually increases between the second diffuser portion (502) and the annular air outlet (11).

3. The air guiding assembly according to claim 1, wherein: At the positions of the first diffuser portion (501) and the second diffuser portion (502), the distance between the upper cover (51) and the lower cover (52) is smaller than the distance between the upper cover (51) and the lower cover (52) at any other position.

4. The air guiding assembly according to claim 1, wherein: The inner wall surface of the upper cover (51) on one side close to the communication port (510) shrinks towards the lower cover (52), and jointly forms the first diffuser portion (501) with the lower cover (52).

5. The air guiding assembly according to claim 1, wherein: One side of the upper cover (51) close to the annular air outlet (11) shrinks towards the lower cover (52), and jointly forms the second diffuser portion (502) with the lower cover (52).

6. The air guiding assembly according to claim 1, wherein: It is defined that the upper cover (51) includes a first annular surface (511) and a second annular surface (512). The first annular surface (511) connects the first diffuser portion (501) and the second diffuser portion (502), and the second annular surface (512) connects the second diffuser portion (502) and the annular air outlet (11). A third diffuser portion is further provided on the second annular surface (512).

7. The air guiding assembly according to claim 6, wherein: The communication port (510) is arranged in a rectangle. A convex block (5121) protrudes at a position corresponding to the short side of the communication port (510) on the second annular surface (512). The convex block (5121) and the lower cover (52) jointly form the third diffuser portion.

8. A bathroom heater, characterized in that, It includes: A housing (1), an assembly groove (12) is provided in the housing (1), as well as an air inlet (13) and an air flow passage (14) communicating with the assembly groove (12); A motor assembly (2), which is received in the assembly groove (12); An impeller (3), which is received in the assembly groove (12) and is arranged opposite to the air inlet (13). The impeller (3) is connected to the motor assembly (2) and is driven to rotate by the motor assembly (2); A heating element (4), which is fixed inside the air flow passage (14); And The air guiding assembly (5) as described in any one of claims 1-7; Among them, the communication port (510) is in communication with the air outlet channel (14) so that the air flow driven by the rotation of the impeller (3) is discharged from the annular air outlet (11) after passing through the air inlet (13), the air outlet channel (14), the communication port (510) and the diffuser chamber (50).

9. The ceiling heater according to claim 8, wherein: The heating element (4) is fixed at the connection position between the air outlet channel (14) and the diffuser chamber (50), and the air outlet direction of the heating element (4) is parallel to the central axis direction of the impeller (3).

10. The ceiling lamp as claimed in claim 9, wherein: The center point of the heating element (4) is located on the central axis of the air guiding assembly (5).

11. The ceiling lamp as claimed in claim 8, wherein: The air outlet channel (14) is fan-shaped, and is provided with an air inlet (140) facing the assembly groove (12) and an air outlet (141) facing the diffuser chamber (50), and the air inlet (140) and the air outlet (141) are perpendicular to each other.

12. The ceiling lamp according to claim 11, wherein: A positioning block (142) is provided at one end of the air outlet (141) of the air outlet channel (14), and the heating element (4) is fixed on the positioning block (142) so that the direction of the air flow passing through the heating element (4) is parallel to the axis direction of the impeller (3).

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