A bath heater

Abstract

The utility model discloses a kind of bath heater, including shell and air outlet nozzle, shell is equipped with volute air guide cavity, the air guide cavity is equipped with air inlet and air outlet, air guide cavity is installed with wind wheel, air outlet is located air guide cavity side face;The air outlet nozzle includes air inlet end, air outlet end and the surrounding wall between air inlet end and air outlet end, air inlet end is matched with the air outlet and is communicated;The maximum transverse dimension of air inlet end is greater than the maximum transverse dimension of air outlet end, air outlet end is eccentric relative to air inlet end and is set to the side of the air outlet main air outlet side eccentricity.The utility model is optimized to the structure of air outlet nozzle, so that the resistance of airflow is significantly reduced when flowing into air outlet nozzle from air outlet, so as to reduce wind resistance and noise, while optimizing airflow distribution, improve exhaust efficiency.

Description

Technical Field

[0001] This utility model relates to bathroom equipment, and in particular to a bathroom heater. Background Technology

[0002] In existing bathroom heater / ventilation units, the connection structure between the exhaust nozzle and the volute-shaped air guide cavity has a significant design flaw. The exhaust nozzle is typically a short tubular structure, and its outlet cross-section fails to form a smooth, gradual aerodynamic transition with the volute-shaped outlet of the air guide cavity. In actual connection, misalignment, abrupt changes in cross-section, or mismatched curvature often occur, leading to turbulence and vortices at the interface, significantly increasing air resistance. This not only causes excessive aerodynamic noise during operation but also severely reduces actual exhaust efficiency, resulting in poor indoor air circulation and ultimately impacting the overall user experience, leading to generally low user satisfaction. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a bathroom heater that effectively reduces wind resistance and thus reduces noise during operation by optimizing the structure of the air outlet.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a bathroom heater, including a shell and an air outlet, wherein the shell is provided with a volute-shaped air guide cavity, the air guide cavity is provided with an air inlet and an air outlet, and a fan wheel is installed in the air guide cavity, the axial direction of the fan wheel is consistent with the vertical direction after the bathroom heater is installed, and the air outlet is located on the side of the air guide cavity; the air outlet is characterized in that: the air outlet includes an air inlet end, an air outlet end, and a surrounding wall provided between the air inlet end and the air outlet end, the air inlet end is matched with and connected to the air outlet end; the maximum lateral dimension of the air inlet end is greater than the maximum lateral dimension of the air outlet end, and the air outlet end is eccentrically positioned relative to the air inlet end towards the side away from the main air outlet.

[0005] In a preferred embodiment, the surrounding walls include a first sidewall and a second sidewall disposed opposite to each other along the lateral direction of the air outlet. The first sidewall is located on the side where the air outlet mainly emits air, and the first sidewall is inclined relative to the air inlet, forming a first angle between the two.

[0006] In a preferred embodiment, the angle of the first included angle is in the range of 40°-60°.

[0007] In a preferred embodiment, the second sidewall is inclined relative to the air inlet end, forming a second included angle between them, which is greater than the first included angle and less than 90°.

[0008] In a preferred embodiment, the maximum lateral dimension of the air inlet is greater than or equal to 3 / 2 times the maximum lateral dimension of the air outlet.

[0009] In a preferred embodiment, the protrusion dimension of the air inlet end is smaller than the protrusion dimension of the air outlet end.

[0010] In a preferred embodiment, the air inlet has a square outline and the air outlet has a circular outline.

[0011] In a preferred embodiment, the air outlet is mounted on the side wall of the housing, or the air outlet is integrally formed with the side wall of the housing; the air outlet protrudes from the outer surface of the housing.

[0012] In a preferred embodiment, the system further includes an exhaust duct, one end of which is connected to the air outlet of the air outlet, and the other end of which leads to an exhaust duct installed outdoors or indoors.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The air inlet end of the air outlet of this utility model is matched and connected with the air outlet. The maximum lateral dimension of the air inlet end is greater than the maximum lateral dimension of the air outlet end. The air outlet end is eccentrically set relative to the air inlet end towards the side away from the main air outlet. This design significantly reduces the resistance when the airflow flows from the air outlet into the air outlet, thereby reducing wind resistance and noise. At the same time, it optimizes the airflow distribution and improves the exhaust efficiency.

[0015] 2. The surrounding walls include a first sidewall and a second sidewall that are arranged opposite each other along the lateral dimension of the air outlet. The first sidewall is located on the side where the air outlet mainly outlets. The first sidewall is inclined relative to the air inlet end, and the two form a first angle. This design makes the transition between the air inlet end and the air outlet end smoother, which helps to further reduce wind resistance and noise. On the other hand, the inclined design of the first sidewall can match the airflow direction of the air outlet, effectively guiding the airflow and ensuring that the airflow flows more efficiently to the air outlet end and is discharged from the air outlet end.

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the present invention is not limited to the embodiments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention (showing a part of it);

[0018] Figure 2 This is a three-dimensional structural diagram of the air outlet of this utility model;

[0019] Figure 3 This is a top view of the air outlet of this utility model;

[0020] Figure 4 This is a side view of the air outlet of this utility model;

[0021] Figure 5 This is a front view of the air outlet of this utility model;

[0022] Figure 6 This is a schematic diagram of the air outlet of this utility model;

[0023] In the figure, 1 is the shell; 11 is the air guide cavity; 111 is the air outlet; 2 is the impeller; 3 is the air nozzle; 31 is the air inlet; 32 is the air outlet; 33 is the surrounding wall; 331 is the first side wall; 332 is the second side wall; 333 is the third side wall; and 334 is the fourth side wall. Detailed Implementation

[0024] In this utility model, the terms "first," "second," etc., are used only to distinguish similar objects, not to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper," "lower," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, and is solely for the convenience of describing this utility model, not to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation on the scope of protection of this utility model. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] Please see Figures 1-6 As shown, a bathroom heater according to this utility model includes a housing 1 and an air outlet 3. The housing 1 has a volute-shaped air guide cavity 11, which has an air inlet (not shown in the figure) and an air outlet 111. A fan wheel 2 is installed in the air guide cavity 11, and the axial direction of the fan wheel 2 is consistent with the vertical direction of the bathroom heater after installation. The air outlet 111 is located on the side of the air guide cavity 11. The air outlet 3 is installed on the side wall of the housing 1 and protrudes from the outer side of the housing 1. In other embodiments, the air outlet 3 is integrally formed with the side wall of the housing 1.

[0026] like Figure 1 , Figure 2As shown, the air outlet 3 includes an air inlet 31, an air outlet 32, and a surrounding wall 33 between the air inlet 31 and the air outlet 32. The air inlet 31 is matched and connected to the air outlet 111. Matching the air inlet 31 and the air outlet 111 means that their dimensions and positions are the same or substantially the same. The maximum lateral dimension of the air inlet 31 is greater than the maximum lateral dimension of the air outlet 32, and the air outlet 32 ​​is eccentrically positioned relative to the air inlet 31, away from the main air outlet of the air outlet 111. The maximum lateral dimension of the air inlet 31 refers to the maximum dimension of the interior of the air inlet 31 in the horizontal direction parallel to the side wall of the housing 1. Similarly, the maximum lateral dimension of the air outlet 32 ​​refers to the maximum dimension of the interior of the air outlet 32 ​​in the horizontal direction parallel to the side wall of the housing 1. The side of the air outlet 111 that is mainly used for air outlet refers to the side near the end of the spiral of the volute, where the airflow is gathered and finally discharged, i.e. Figure 6 The right side area of ​​air outlet 111 as seen from the perspective.

[0027] like Figure 2 As shown, the surrounding walls 33 include a first sidewall 331 and a second sidewall 332 arranged opposite each other along the transverse direction of the air outlet 3. The first sidewall 331 is located on the side where the air outlet 111 mainly outlets air, and the first sidewall 331 is inclined relative to the air inlet 31, forming a first included angle between the two. Figure 5 As shown. The angle range of the first included angle is 40°-60°. In this embodiment, 40° is used as an example, but it is not limited to this. The lateral direction of the air outlet 3 refers to the horizontal direction parallel to the side wall where the air outlet 3 is located. The surrounding walls 33 also include a third side wall 333 and a fourth side wall 334 arranged opposite to each other along the longitudinal direction of the air outlet 3. The lateral dimensions of the third side wall 333 and the fourth side wall 334 gradually decrease along the direction from the air inlet end 31 to the air outlet end 32, as shown. Figure 2 , Figure 3 As shown.

[0028] like Figures 2-5 As shown, the second sidewall 332 is inclined relative to the air inlet end 31, forming a second included angle between them. This second included angle is greater than the first included angle but less than 90°.

[0029] like Figure 5 As shown, the maximum lateral dimension L1 of the air inlet 31 is greater than or equal to 3 / 2 times the maximum lateral dimension L2 of the air outlet 32. In this embodiment, the maximum lateral dimension L1 of the air inlet 31 is equal to 3 / 2 times the maximum lateral dimension L2 of the air outlet 32 ​​as an example, but it is not limited to this.

[0030] like Figure 5As shown, the protrusion dimension L3 of the air inlet 31 is smaller than the protrusion dimension L4 of the air outlet 32. The protrusion dimension of the air inlet 31 refers to the dimension of the air inlet 31 in the horizontal direction perpendicular to the side wall of the housing 1; similarly, the protrusion dimension of the air outlet 32 ​​refers to the dimension of the air outlet 32 ​​in the horizontal direction perpendicular to the side wall of the housing 1. This design makes it easier to connect the air outlet 32 ​​to the exhaust pipe and increases the air outlet area, thereby improving exhaust efficiency and the uniformity of airflow distribution.

[0031] like Figure 2 , Figure 3 As shown, the air inlet 31 has a square outline, specifically a rectangle, and is fixed to the outer surface of the housing 1. The air outlet 32 ​​has a circular outline, making it easy to connect to an exhaust pipe with a circular cross-section. The maximum lateral dimension of the air inlet 31 is the inner length of the rectangle, and the maximum lateral dimension of the air outlet 32 ​​is the inner diameter of the circle. In this embodiment, the longitudinal dimension of the air inlet 31 is the same as or substantially the same as the longitudinal dimension of the air outlet 32. The longitudinal dimension of the air inlet 31 refers to the dimension of the air inlet 31 in the longitudinal direction (i.e., the vertical direction), and the same applies to the longitudinal dimension of the air outlet 32.

[0032] This utility model also includes an exhaust pipe (not shown in the figure), one end of which is connected to the air outlet 32 ​​of the air outlet 3, and the other end of which leads to an exhaust pipe installed outdoors or indoors.

[0033] This utility model discloses a bathroom heater with an optimized design of its air outlet 3. This design significantly reduces resistance as airflow flows from the air outlet 111 into the air outlet 3, thereby reducing wind resistance and noise. Simultaneously, it optimizes airflow distribution and improves exhaust efficiency. Specifically, the air inlet 31 of the air outlet 3 matches the air outlet 111, ensuring smooth communication between them. The maximum lateral dimension of the air inlet 31 is greater than the maximum lateral dimension of the air outlet 32, and the air outlet 32 ​​is eccentrically positioned relative to the air inlet 32, away from the main airflow direction of the air outlet 111. This provides sufficient air intake space for the air inlet 31 on the main airflow side of the air outlet 111 and allows it to match the airflow direction of the air outlet 111. Figure 6 As shown in the diagram, the arrows indicate the direction of airflow. This design not only reduces airflow resistance but also optimizes airflow distribution, improves exhaust efficiency, and reduces exhaust noise.

[0034] Specifically, the air inlet 31 and the air outlet 32 ​​are balanced and transitioned on the side of the air outlet 111 where the main air is discharged, by a first sidewall 331 that is inclined relative to the air inlet 31. This helps to further reduce wind resistance and noise. At the same time, the inclined design of the first sidewall 331 can be matched with the airflow direction of the air outlet 111, which can effectively guide the airflow and ensure that the airflow flows to the air outlet 32 ​​and is discharged from the air outlet 32 ​​more efficiently.

[0035] The parts of this utility model that are not described are the same as or can be implemented using existing technology.

[0036] The above embodiments are only used to further illustrate a bathroom heater of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A bathroom heater, comprising a housing and an air outlet, wherein the housing has a volute-shaped air guide cavity, the air guide cavity having an air inlet and an air outlet, and an impeller installed in the air guide cavity, the axial direction of the impeller being consistent with the vertical direction of the bathroom heater after installation, and the air outlet being located on the side of the air guide cavity; characterized in that: The air outlet includes an air inlet, an air outlet, and a surrounding wall between the air inlet and the air outlet. The air inlet matches and is connected to the air outlet. The maximum lateral dimension of the air inlet is greater than the maximum lateral dimension of the air outlet. The air outlet is eccentrically positioned relative to the air inlet, away from the main air outlet.

2. The bath heater as claimed in claim 1, wherein: The surrounding walls include a first sidewall and a second sidewall that are arranged opposite each other along the lateral direction of the air outlet. The first sidewall is located on the side where the air outlet mainly emits air and is inclined relative to the air inlet, forming a first angle between the two.

3. The bathroom heater according to claim 2, characterized in that: The angle range of the first included angle is 40°-60°.

4. The bath heater as claimed in claim 2, wherein: The second sidewall is inclined relative to the air inlet end, forming a second included angle between them. This second included angle is greater than the first included angle but less than 90°.

5. The bath heater as claimed in claim 1, wherein: The maximum lateral dimension of the air inlet is greater than or equal to 3 / 2 times the maximum lateral dimension of the air outlet.

6. The bath heater according to claim 1, characterized in that: The protrusion dimension of the air inlet is smaller than that of the air outlet.

7. The bathroom heater according to any one of claims 1-6, characterized in that: The air inlet has a square outline, and the air outlet has a circular outline.

8. The bathroom heater according to claim 1, characterized in that: The air outlet is mounted on the side wall of the housing, or the air outlet is integrally formed with the side wall of the housing; the air outlet protrudes from the outer surface of the housing.

9. The bath heater according to claim 1, characterized in that: It also includes an exhaust duct, one end of which is connected to the air outlet of the air nozzle, and the other end of which leads to an exhaust duct installed outdoors or indoors.

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