Bathroom Heater

Abstract

The present application relates to a bathroom heater, which includes a main body, a connecting duct assembly and an air outlet structure. The main body is formed with a first chamber, a first air inlet and a first air outlet are provided on the cavity wall of the first chamber, a fan is arranged in the first chamber, the connecting duct assembly includes an outer air duct and an inner air duct, the outer air duct is sleeved on the outer side of the inner air duct, the inner air duct and the outer air duct are both connected with the first air outlet, the air flow channel from the first air outlet to the inner air duct air inlet is the inner air duct air inlet channel, the air flow channel from the first air outlet to the outer air duct air inlet is the outer air duct air inlet channel, a heater is provided in the inner air duct air inlet channel, and no heater is provided in the outer air duct air inlet channel, a second air inlet and an indoor air outlet are provided on the air outlet structure, and the second air inlet is connected with the first air outlet through the connecting duct assembly. The bathroom heater of the present application effectively prevents the wires or other items on the ceiling from being damaged due to overheating, and further eliminates potential personal safety hazards.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to a bathroom heater. Background Art

[0002] At present, the main body of the bathroom heater is usually connected to the indoor air outlet through an air duct. When the bathroom heater is switched to the warm air mode, the air in the bathroom will be quickly heated in the main body of the bathroom heater. Then, the heated air will be transported to the indoor air outlet through the air duct, effectively raising the indoor air temperature and bringing continuous warmth to the bathroom. However, in this process, due to the direct impact of the wind flow and long-term heat conduction, the air duct is constantly heated, and its temperature gradually rises to above 80°C. The bathroom heater is installed in the ceiling. When the air duct on the ceiling is in this high temperature state for a long time, it will cause a series of potential problems. For example, in the layout of the ceiling, in addition to the bathroom heater, other electrical equipment such as lamps are often installed. If the heated air duct is in contact with the wires of these electrical appliances for a long time, it will cause the wires to age rapidly in a high temperature environment, thereby greatly shortening their service life and even scrapping them in advance. What is more serious is that the insulation layer on the outside of the wire may melt due to the high temperature, which not only affects the normal function of the wire, but also may constitute a safety hazard, directly threatening the personal safety of users. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a bathroom heater.

[0004] A bathroom heater comprises a main body, a connecting duct assembly and an air outlet structure, the main body forms a first chamber, a first air inlet and a first air outlet are provided on the cavity wall of the first chamber, a fan is arranged in the first chamber, the connecting duct assembly comprises an outer air duct and an inner air duct, the outer air duct is sleeved on the outer side of the inner air duct, the inner air duct and the outer air duct are both connected with the first air outlet, an air flow channel from the first air outlet to the inner air duct inlet is an inner air duct inlet channel, an air flow channel from the first air outlet to the outer air duct inlet is an outer air duct inlet channel, a heater is provided in the inner air duct inlet channel, and no heater is provided in the outer air duct inlet channel, a second air inlet and an indoor air outlet are provided on the air outlet structure, and the second air inlet is connected with the first air outlet through the connecting duct assembly.

[0005] In one embodiment, the ratio of the cross-sectional area of ​​the outer air duct to the cross-sectional area of ​​the inner air duct is 1.1-1.2 times.

[0006] In one embodiment, the ratio of the cross-sectional area of ​​the outer air duct to the cross-sectional area of ​​the inner air duct is 1.15 times.

[0007] In one of the embodiments, the inner air duct is made of a high temperature resistant material, and the outer air duct is made of a poor heat conductor.

[0008] In one of the embodiments, the wall thickness of the external air duct is greater than or equal to 2.5 mm.

[0009] In one embodiment, the connecting air duct assembly also includes a first connecting member, which includes a sealing portion, an outer ring portion and an inner ring portion, the outer ring portion and the inner ring portion are arranged on the sealing portion, the diameter of the outer ring portion is larger than the diameter of the inner ring portion, the sealing portion, the outer ring portion and the inner ring portion are hollow structures, the sealing portion is fixedly connected to the first air outlet and sealingly connected to the first air outlet, the inner air duct is sleeved on the inner ring portion, and the outer air duct is sleeved on the outer ring portion.

[0010] In one of the embodiments, projected along the center line of the first connecting member, the overlapping portion of the first air outlet and the inner air duct air inlet is the first area, the overlapping portion of the first air outlet and the space between the inner air duct outer wall and the outer air duct inner wall is the second area, the air flow channel from the first area to the inner air duct air inlet is the inner air duct air inlet channel, and the air flow channel from the second area to the outer air duct air inlet is the outer air duct air inlet channel, a heater is provided in the inner air duct air inlet channel, and no heater is provided in the outer air duct air inlet channel.

[0011] In one embodiment, reinforcing ribs are provided inside the inner ring portion.

[0012] In one embodiment, reinforcing ribs are provided between the inner ring portion and the outer ring portion.

[0013] In one embodiment, the first chamber is a fresh air chamber, the first air inlet is an outdoor air inlet, and the outdoor air inlet is connected to outdoor air to draw outdoor air into the fresh air chamber.

[0014] In the present application, the first air outlet of the first chamber is connected to the air inlet of the air outlet structure through a connecting air duct assembly, and the connecting air duct assembly includes an outer air duct and an inner air duct that are arranged inside and outside to form a double-layer structure, wherein the wind transported to the air outlet structure via the inner air duct is heated, while the wind transported to the air outlet structure via the outer air duct is not heated. In this way, the wind flowing in the air duct between the outer wall of the inner air duct and the inner wall of the outer air duct is wind with a lower temperature, and therefore, the temperature of the outer wall of the outer air duct will be relatively low, which effectively prevents the wires or other items on the ceiling from being damaged due to overheating, and further eliminates potential personal safety hazards. In addition, the wind in the inner air duct is heated, The temperature is high, while the wind temperature in the air duct between the inner and outer air ducts is low. Therefore, the heat emitted by the wind in the inner air duct can be absorbed by the airflow in the air duct between the inner and outer air ducts, reducing the loss of heat energy. In addition, the humidity of the wind in the air duct of the inner air duct will also decrease after heating, becoming relatively dry, while the wind in the air duct between the inner and outer air ducts has relatively high humidity without heating. Therefore, when both airflows are transported to the air outlet structure and merge in the air outlet structure, the wind in the air duct between the outer wall of the inner air duct and the inner wall of the outer air duct can adjust the temperature and humidity of the heated air in the inner air duct, avoiding the airflow temperature from being too high and the humidity from being too low, achieving the effect of warm but not hot, moist but not dry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the structure of a bathroom heater provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of the connection components of the bathroom heater provided in an embodiment of the present application;

[0019] Figure 3 A schematic structural diagram of the first connecting member of the connecting assembly of the bathroom heater provided for the implementation of the present application.

[0020] Explanation of the accompanying drawings: main body 1, first chamber 11, first air inlet 111, fan 112, connecting air duct assembly 2, air outlet structure 3, indoor air outlet 31, first connecting member 21, sealing portion 211, inner ring portion 212, outer ring portion 213, reinforcing ribs 214, inner air duct 23, outer air duct 22, heater 4. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0027] See also Figure 1 and Figure 2 FIG. 1 shows a schematic diagram of the structure of a bathroom heater in an embodiment of the present application. Figure 2 The schematic diagram of the structure of the connecting duct assembly in the embodiment of the present application is shown. A bathroom heater provided in an embodiment of the present application includes a main body 1, a connecting duct assembly 2 and an air outlet structure 3. The main body 1 is formed with a first chamber 11. A first air inlet 111 and a first air outlet are provided on the cavity wall of the first chamber 11. A fan 112 is provided in the first chamber 11. The connecting duct assembly 2 includes an outer air duct 22 and an inner air duct 23. The outer air duct 22 is sleeved on the outer side of the inner air duct 23. The inner air duct 23 and The outer air ducts 22 are all connected with the first air outlet, the air flow channel from the first air outlet to the air inlet of the inner air duct 23 is the inner air duct air inlet channel, the air flow channel from the first air outlet to the air inlet of the outer air duct 22 is the outer air duct air inlet channel, a heater 4 is provided in the inner air duct air inlet channel, and no heater is provided in the outer air duct air inlet channel, a second air inlet and an indoor air outlet 31 are provided on the air outlet structure 3, and the second air inlet is connected with the first air outlet through the connecting air duct assembly 2.

[0028] In this embodiment, the first air outlet 111 of the first chamber 11 is connected to the air inlet of the air outlet structure 3 through the connecting air duct assembly 2, and the connecting air duct assembly 2 includes an outer air duct 22 and an inner air duct 23 which are arranged inside and outside to form a double-layer structure, wherein a heater 4 is provided in the air flow channel from the first air outlet to the air inlet of the inner air duct 23, and the wind delivered to the air outlet structure 3 via the inner air duct 23 is heated, while the wind delivered to the air outlet structure 3 via the outer air duct 22 is not heated, so that the wind flowing in the air duct between the outer wall of the inner air duct 23 and the inner wall of the outer air duct 22 is the wind with a lower temperature, and thus, the outer The temperature of the outer wall of the air duct 22 will be relatively low, which effectively prevents the wires or other items on the ceiling from being damaged due to overheating, and further eliminates potential personal safety hazards. In addition, the wind temperature in the inner air duct 23 is higher, while the wind temperature in the air duct between the inner and outer air ducts is lower. Therefore, the heat emitted by the wind in the inner air duct 23 can be absorbed by the airflow in the air duct between the inner and outer air ducts, reducing the loss of heat energy. Both airflows are transported to the air inlet of the air outlet structure, merge at the air inlet of the air outlet structure 3, and are finally transported to the bathroom space, which can avoid the air flow temperature being too high and achieve the effect of warmth without being hot.

[0029] It should be noted that, in the present embodiment, the airflow channel from the first air outlet to the air inlet of the inner air duct 23 is the inner air duct air inlet channel, which includes the first air outlet and the inner air duct air inlet at two end points, and the same is true for the outer air duct air inlet channel. It can be understood that the airflow in a part of the area of ​​the first air outlet will flow into the inner air duct. In the present embodiment, this part of the area is the first area, and the airflow in another part of the area will flow into the air duct between the inner wall of the outer air duct and the outer wall of the inner air duct. In the present embodiment, this part of the area is the second area. The inner air duct air inlet channel is an airflow channel that starts from the first area of ​​the first air outlet and ends at the inner air duct air inlet. The outer air duct air inlet channel is an airflow channel that starts from the second area of ​​the first air outlet and ends at the outer air duct air inlet.

[0030] In some embodiments, the ratio of the cross-sectional area of ​​the outer air duct 22 to the cross-sectional area of ​​the inner air duct 23 is 1.1-1.2 times.

[0031] When the ratio of the cross-sectional area of ​​the outer air duct 22 to the cross-sectional area of ​​the inner air duct 23 is 1.1-1.2 times, the air volume of the unheated wind is approximately 1 / 10 to 2 / 10 of the air volume of the wind passing through the heater. At this time, the mixing effect of the two winds is better, that is, the wind between the outer air duct 22 and the inner air duct 23 that does not pass through the heater can adjust the humidity of the wind in the inner air duct 23 that passes through the heater 4 without significantly reducing the temperature of the wind in the inner air duct, thereby achieving a better effect of being warm but not hot, and moist but not dry.

[0032] In some embodiments, the ratio of the cross-sectional area of ​​the outer air duct 22 to the cross-sectional area of ​​the inner air duct 23 is 1.15 times.

[0033] In some embodiments, the inner air duct 23 is made of a high temperature resistant material, and the outer air duct 22 is made of a poor heat conductor.

[0034] In some embodiments, the inner air duct 23 is made of aluminum silicate fiber, and the outer air duct 22 is made of PVC.

[0035] In some embodiments, the wall thickness of the external air duct is 2.5 mm.

[0036] See also Figure 2 and Figure 3 In some embodiments, the connecting air duct assembly also includes a first connecting member 21, the first connecting member includes a sealing portion 211, an inner ring portion 212 and an outer ring portion 213, the outer ring portion 213 and the inner ring portion 212 are arranged on the sealing portion 211, the diameter of the outer ring portion 213 is larger than the diameter of the inner ring portion 212, the sealing portion 211, the outer ring portion 213 and the inner ring portion 212 are hollow structures, the sealing portion 211 is fixedly connected to the first air outlet and sealed and docked with the first air outlet, the inner air duct 23 is sleeved on the inner ring portion 212, and the outer air duct 22 is sleeved on the outer ring portion 213.

[0037] In this embodiment, wind flows from the first air outlet into the air inlet of the first connecting member 21, and is then divided into two streams, one stream flows into the inner ring portion 212 and then is transported to the inner air duct 23, and the other stream flows between the inner ring portion 212 and the outer ring portion 213 and then is transported to the air duct between the outer wall of the inner air duct and the inner wall of the outer air duct. The two air flows are transported to the air outlet structure 3 via the inner and outer air ducts, merge in the air outlet structure 3, and enter the space in the bathroom to increase the temperature of the bathroom.

[0038] In this embodiment, along the center line projection of the first connecting member 21, the overlapping portion of the first air outlet and the air inlet of the inner air duct 23 is the first area, the overlapping portion of the first air outlet and the space between the outer wall of the inner air duct 23 and the inner wall of the outer air duct 22 is the second area, the air flow channel from the first area to the inner air duct air inlet is the inner air duct air inlet channel, and the air flow channel from the second area to the outer air duct air inlet is the outer air duct air inlet channel, a heater 4 is provided in the inner air duct air inlet channel, and no heater is provided in the outer air duct air inlet channel.

[0039] In some embodiments, reinforcing ribs 214 are provided in the inner ring portion.

[0040] In some embodiments, reinforcing ribs 214 are also provided between the inner ring portion and the outer ring portion.

[0041] In some embodiments, the first chamber 11 is a fresh air chamber, and the first air inlet 111 is an outdoor air inlet, which is connected to outdoor air to draw outdoor air into the fresh air chamber.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A bathroom heater, characterized in that: The invention comprises a main body, a connecting duct assembly and an air outlet structure, wherein the main body forms a first chamber, a first air inlet and a first air outlet are provided on the cavity wall of the first chamber, a fan is arranged in the first chamber, the connecting duct assembly comprises an outer air duct and an inner air duct, the outer air duct is sleeved on the outer side of the inner air duct, the inner air duct and the outer air duct are both connected with the first air outlet, an air flow channel from the first air outlet to the inner air duct inlet is an inner air duct inlet channel, an air flow channel from the first air outlet to the outer air duct inlet is an outer air duct inlet channel, a heater is provided in the inner air duct inlet channel, and no heater is provided in the outer air duct inlet channel, a second air inlet and an indoor air outlet are provided on the air outlet structure, and the second air inlet is connected with the first air outlet through the connecting duct assembly.

2. A bathroom heater according to claim 1, characterized in that: The ratio of the cross-sectional area of ​​the outer air duct to the cross-sectional area of ​​the inner air duct is 1.1-1.2 times.

3. A bathroom heater according to claim 2, characterized in that: The ratio of the cross-sectional area of ​​the outer air duct to the cross-sectional area of ​​the inner air duct is 1.15 times.

4. A bathroom heater according to claim 1, characterized in that: The inner air duct is made of high temperature resistant material, and the outer air duct is made of a poor heat conductor.

5. A bathroom heater according to claim 1, characterized in that: The wall thickness of the external air duct is greater than or equal to 2.5 mm.

6. A bathroom heater according to claim 1, characterized in that: The connecting air duct assembly also includes a first connecting member, which includes a sealing portion, an outer ring portion and an inner ring portion, the outer ring portion and the inner ring portion are arranged on the sealing portion, the diameter of the outer ring portion is larger than the diameter of the inner ring portion, the sealing portion, the outer ring portion and the inner ring portion are hollow structures, the sealing portion is fixedly connected to the first air outlet and sealingly connected to the first air outlet, the inner air duct is sleeved on the inner ring portion, and the outer air duct is sleeved on the outer ring portion.

7. A bathroom heater according to claim 6, characterized in that: Projected along the center line of the first connecting member, the portion of the first air outlet that overlaps with the inner air duct air inlet is the first area, the portion of the first air outlet that overlaps with the space between the outer wall of the inner air duct and the inner wall of the outer air duct is the second area, the airflow channel from the first area to the inner air duct air inlet is the inner air duct air inlet channel, and the airflow channel from the second area to the outer air duct air inlet is the outer air duct air inlet channel, the heater is provided in the inner air duct air inlet channel, and no heater is provided in the outer air duct air inlet channel.

8. A bathroom heater according to claim 6, characterized in that: The inner ring portion is provided with reinforcing ribs.

9. A bathroom heater according to claim 6, characterized in that: Reinforcing ribs are provided between the inner ring portion and the outer ring portion.

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