Bath heater

Abstract

The utility model relates to the technical field of household appliances, in particular to a bath heater. The bath heater comprises a box body, and at least one side plate, in the width direction, of the box body is provided with a first opening; the fan is arranged in the box body, and the axial direction of the fan is arranged in the thickness direction of the box body; the fixed volute is arranged in the box body and surrounds the fan in the circumferential direction of the fan, and a second opening is formed in the position, corresponding to the first opening, of the fixed volute; and when the movable volute moves to a first position, the movable volute is retracted into the box body, and when the movable volute moves to a second position, the movable volute extends out of the box body. Due to the fact that when the bath heater is installed, the movable volute is contained in the box body, the overall width of the bath heater is not affected, the requirement for the width of a suspended ceiling interlayer is low, only a fan with the normal size needs to be adopted, and the noise problem caused by the fact that a small fan and a small volute are adopted is avoided.

Description

Technical Field

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

[0002] As people's living standards improve and they pursue a simple style for the appearance of the room ceiling, more and more people will choose linear bathroom heaters with minimalist large ceiling panels in the bathroom. However, the panel of the linear bathroom heater is smaller than the main unit housing. If there is no inspection hole on the ceiling, the large ceiling panel must be removed when repairing the bathroom heater. Removing the large ceiling panel is relatively troublesome and it will damage the ceiling if you are not careful.

[0003] At present, there are also bathroom heaters on the market that do not require maintenance ports. They are installed straight up and down, and during later maintenance, you only need to remove the panel to take out the main unit for maintenance, which will not affect the large ceiling much and is relatively convenient. However, this type of product has two major shortcomings. First, in order to ensure the heating effect of the linear bathroom heater, it is necessary to ensure a certain diameter of the wind wheel. After adding the duct volute, the entire main unit shell will be very wide. Although it can be installed without an inspection port, the requirements for the ceiling mezzanine are very high. If the ceiling mezzanine is too high, the ceiling will be relatively low, which will also make people feel depressed. However, by using a small wind wheel and a small volute to increase the speed to compensate for the air volume, the main unit can be relatively small. Although this can reduce the height of the ceiling mezzanine, the high-speed wind wheel speed synchronization will bring greater noise after ensuring the bathroom heater effect by increasing the speed of the centrifugal wind wheel to compensate for the air volume, which will also make people uncomfortable. The second reason is structural defects. When the bathroom heater is in operation, the wind is sucked in from the room and must pass through the ceiling mezzanine before entering the bathroom heater main unit. After being heated, it is blown into the room. After long-term use, there will be humid air in the relatively closed ceiling mezzanine for a long time, which will breed various pathogens. During the use of the bathroom heater, these humid air containing pathogens will also be blown into the bathroom, which is also a major hazard to people's health. Sometimes the odor in the ceiling mezzanine will also be blown into the room. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a bathroom heater.

[0005] The present application provides a bathroom heater, comprising:

[0006] A box body, wherein at least one side plate of the box body along the width direction is provided with a first opening;

[0007] A fan is arranged in the box, and the axial direction of the fan is arranged along the thickness direction of the box;

[0008] A fixed volute, the fixed volute is arranged in the box body and is arranged around the fan along the circumference of the fan, and a second opening is formed in the fixed volute at a position corresponding to the first opening;

[0009] A movable volute is movably arranged at the second opening. When the movable volute moves to a first position, the movable volute is retracted into the casing. When the movable volute moves to a second position, the movable volute extends out of the casing, and an edge of the movable volute is sealed and matched with the second opening.

[0010] In some embodiments, the first opening and the second opening are arranged to overlap, and the fixed volute is fixedly connected to the side plate of the casing at the first opening and the second opening.

[0011] In some embodiments, a moving mechanism is provided between the moving volute and the casing, and the moving mechanism drives the moving volute to move between the first position and the second position.

[0012] In some embodiments, the moving mechanism includes a gear and a rack that mesh with each other, the gear is provided on the housing, the rack is provided on the moving volute, and is arranged along the width direction of the housing.

[0013] In some embodiments, first openings are provided on both side walls of the box body along the width direction, second openings on the fixed volute are provided in one-to-one correspondence with the first openings, and one movable volute is provided at each first opening.

[0014] In some embodiments, each of the movable volutes is movably connected to the housing via one of the movable mechanisms.

[0015] In some embodiments, a driving mechanism is further included, wherein the driving mechanism is connected to the moving mechanism and is used to drive the moving volute to move.

[0016] In some embodiments, the box body includes a box body body and a cover plate, the box body body is open on one side along the thickness direction, the cover plate is arranged on the open side of the box body, and an air inlet is arranged on the cover plate at a position corresponding to the fan.

[0017] In some embodiments, the casing is provided with a rib at the first opening, and the rib is used to prevent the movable volute from detaching outward from the casing.

[0018] In some embodiments, the size of the moving volute located on the wind outlet side of the fan is larger than the size of the moving volute on the opposite side.

[0019] Compared with the prior art, the technical solution provided by the embodiments of the present application has the following advantages:

[0020] The bathroom heater provided in the embodiment of the present application has a first opening arranged on at least one side of the casing along the width direction, the fan is arranged in the casing, and the axial direction of the fan is arranged along the thickness direction of the casing, the fixed volute is arranged in the casing and arranged around the fan along the circumference of the fan, a second opening is opened at a position of the fixed volute corresponding to the first opening, the movable volute is movably arranged at the second opening, and when the movable volute moves to the first position, the movable volute is retracted into the casing, and when the movable volute moves to the second position, the movable volute extends out of the casing, and the edge of the movable volute is sealed with the second opening to form a complete air duct volute structure with the fixed volute. Since the movable volute is extended out of the box when the bathroom heater is working normally, the width of the box only needs to be slightly larger than the diameter of the fan. The width of the installation hole opened on the ceiling is slightly larger than the thickness of the bathroom heater, and the width requirement of the opening is relatively low. During installation, the movable volute is moved to the first position, that is, it is stored in the box. The movable volute does not occupy the width dimension of the box. The bathroom heater is passed through the ceiling from the installation hole along the width direction, and then the bathroom heater is turned 90 degrees to align with the installation hole, and the movable volute is moved to the second position. The movable volute and the fixed volute form a complete air duct volute structure, which does not affect the normal use of the bathroom heater. Since the movable volute is stored in the box when the bathroom heater is installed, it does not affect the overall width of the bathroom heater. Therefore, it is only necessary to ensure that the height of the ceiling mezzanine is slightly larger than the width of the box. The width requirement of the ceiling mezzanine is also relatively low. A normal-sized fan can be used, avoiding the noise problem of using a small fan and a small volute. At the same time, since the movable volute moves to the second position, its edge is sealed with the second opening, that is to say, the air duct volute structure formed by the movable volute and the fixed volute will not be connected with the ceiling interlayer. After the wind enters the bathroom heater through the fan, it is blown into the bathroom after heating. The air in the interlayer is isolated from the air duct volute structure, thus preventing the odor in the ceiling interlayer from blowing into the room. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a schematic diagram of the structure of the bathroom heater described in the embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the structure of the bathroom heater described in the embodiment of the present application when the movable volute is retracted into the housing;

[0025] Figure 3 for Figure 2 A partial enlarged view of point A;

[0026] Figure 4 This is a state diagram of the bathroom heater described in the embodiment of the present application when the volute is moved and retracted into the box body;

[0027] Figure 5 This is a state diagram of the bathroom heater described in the embodiment of the present application when the movable volute is opened.

[0028] Among them, 1. fan; 2. box body; 201. first opening; 3. air duct volute structure; 301. fixed volute; 302. movable volute; 3a. rack; 4. air duct; 5. gear; 6. cover plate; 7a. air inlet; 7b. fan air inlet. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0031] like Figures 1 to 5 As shown, the embodiment of the present application provides a bathroom heater, including:

[0032] The box body 2 is specifically a rectangular parallelepiped with a hollow interior, and a first opening 201 is provided on at least one side panel of the box body 2 along the width direction;

[0033] The fan 1 is arranged in the box body 2, and the axial direction of the fan 1 is arranged along the thickness direction of the box body 2;

[0034] A fixed volute 301 is provided in the housing 2. The fixed volute 301 is arranged around the fan 1 along the circumference of the fan 1, and a second opening is provided on the fixed volute 301 at a position corresponding to the first opening 201.

[0035] The movable volute 302 is movably arranged at the second opening, and the movable volute 302 can move between a first position and a second position. When the movable volute 302 moves to the first position, the movable volute 302 is received into the box body 2 and does not protrude from the box body 2; when the movable volute 302 moves to the second position, the edge of the movable volute 302 is sealed with the second opening to block the second opening, and the movable volute 302 and the fixed volute 301 together form a complete air duct volute structure 3.

[0036] For example, taking the linear bathroom heater as an example, the housing 2 of the linear bathroom heater is a rectangular parallelepiped with a hollow interior. An air inlet 7a and an air outlet are provided on one side of the housing 2 along the thickness direction, wherein the air inlet 7a is circular and is arranged corresponding to the fan 1, and the air outlet is long and is arranged along the length direction of the housing 2. The fixed volute 301 is formed on the side plate on the other side of the housing 2 along the thickness direction, and the fixed volute 301 is arranged around the fan 1 along the circumference of the fan 1. The fixed volute 301 has a second opening at a position corresponding to the first opening 201, and the size of the second opening can be larger than the first opening 201, or smaller than the first opening 201, or equal to the first opening 201. There is a gap between the fixed volute 301 and the fan 1, and the gap is used for the airflow to pass through. When the movable volute 302 moves to the second position, a gap for the airflow channel is also formed between the movable volute 302 and the fan 1.

[0037] When installing the bathroom heater after assembly, it is necessary to open a mounting hole on the ceiling. The length of the mounting hole is equal to or slightly larger than the width of the box body 2. Since the movable volute 302 extends out of the box body 2 when the bathroom heater is working normally, the width of the box body 2 only needs to be slightly larger than the diameter of the fan 1. The width of the mounting hole opened on the ceiling is equal to or slightly larger than the thickness of the bathroom heater. The width requirement of the mounting hole is relatively low. The length of the mounting hole is equal to or slightly larger than the width of the box body 2. During installation, move the movable volute 302 to the first position, that is, put it into the box body 2. The movable volute 302 does not occupy the width dimension of the box body 2. Pass the bathroom heater through the ceiling from the mounting hole in the width direction, then flip the bathroom heater 90 degrees to align it with the mounting hole, and move the movable volute 302 to the second position. The movable volute 302 and the fixed volute 301 form a complete air duct volute structure 3, which does not affect the normal use of the bathroom heater. When the bathroom heater is installed, the movable volute 302 is stored in the box body 2, which does not affect the overall width of the bathroom heater. Therefore, it is only necessary to ensure that the height of the ceiling interlayer is slightly larger than the width of the box body 2. The width requirement of the ceiling interlayer is also relatively low, and a normal-sized fan 1 can be used, thereby avoiding the noise problem of using a small fan 1 with a small volute. At the same time, since the movable volute 302 is moved to the second position, its edge is sealed with the second opening, that is, the air duct volute structure 3 formed by the movable volute 302 and the fixed volute 301 will not be connected to the ceiling interlayer. After the wind enters the bathroom heater through the fan 1, it is blown into the bathroom after being heated. The air in the interlayer is isolated from the air duct volute structure 3, thereby avoiding the odor in the ceiling interlayer from being blown into the room.

[0038] Furthermore, in some embodiments of the present application, the first opening 201 and the second opening are overlapped, and the fixed volute 301 is fixedly connected to the side panels of the box body 2 at the first opening 201 and the second opening. When the specifications of the fan 1 selected in the bathroom heater are determined, the size of the duct volute is also basically fixed, that is, the size of the fixed volute 301 is basically determined, and the first opening 201 and the second opening overlap, which is equivalent to the width of the box body 2 being set to be smaller than the width of the duct volute. In this way, the two side surfaces of the box body 2 along the width direction may overlap with the fixed volute 301, and the size of the box body 2 along the width direction can be reduced as much as possible. Specifically, the width of the box body 2 only needs to be larger than the diameter of the fan 1 and smaller than the diameter of the duct volute structure 3, which reduces the height requirement of the ceiling mezzanine during the installation of the bathroom heater.

[0039] Furthermore, in some embodiments of the present application, a moving mechanism is provided between the mobile volute 302 and the housing 2, and the moving mechanism drives the mobile volute 302 to move between the first position and the second position. In some preferred embodiments, in order to ensure that when the mobile volute 302 is in the first position, the overall width of the bathroom heater is the width of the housing 2, and the mobile volute 302 does not occupy the width of the bathroom heater, when in the second position, the mobile volute 302 extends the volute from the first opening 201, and forms a complete air duct volute structure 3 with the fixed volute 301, the moving mechanism needs to drive the mobile volute 302 to make a linear motion along the width direction of the housing 2, so the moving mechanism is preferably a linear moving mechanism.

[0040] Specifically, in some embodiments of the present application, the moving mechanism may be a linear moving mechanism such as a worm gear, a lead screw nut, a gear 5 rack 3a, a linear slide rail, or the like.

[0041] Exemplarily, in some embodiments of the present application, the moving mechanism includes a gear 5 and a rack 3a that are meshed with each other, wherein one of the gear 5 and the rack 3a is disposed on the casing 2, and the other is disposed on the moving volute 302, and the rack 3a is disposed along the width direction of the casing 2.

[0042] After installing the bathroom heater, use a tool to rotate the gear 5 through the inspection port on the ceiling, so that the gear 5 moves linearly along the rack 3a, and the movable volute 302 moves between the first position and the second position. When the movable volute 302 moves to the first position or the second position, since the gear 5 and the rack 3a are meshed with each other, when the gear 5 stops rotating, the relative position of the gear 5 and the rack 3a is fixed, and the movable volute 302 can also be fixed to the first position or the second position, so that the movable volute 302 can be moved and can be kept at the predetermined position after moving to the predetermined position.

[0043] Furthermore, in order to facilitate the rotation of the gear 5 , an operating hole is provided at the center of the gear 5 , so that a tool can be inserted into the operating hole to rotate the gear 5 .

[0044] Furthermore, in some embodiments of the present application, the gear 5 is arranged on the casing 2, the rack 3a is arranged on the movable volute 302, a through hole is arranged on the casing 2, the middle part of the gear 5 protrudes axially outward to form a sleeve, and the sleeve is rotatably inserted into the through hole. The axial direction of the gear 5 is arranged along the thickness direction of the casing 2, the rack 3a is arranged along the width direction of the casing 2, and the teeth of the rack 3a are facing one side of the length direction of the casing 2.

[0045] It should be noted that a spring can also be arranged between the box body 2 and the movable volute 302. In a natural state, the spring pulls the movable volute 302 to the second position, blocks the second opening, and forms a complete air duct volute structure 3. The movable volute 302 is pushed into the box body 2 with force, and the movable volute 302 can be retracted into the box body 2 without occupying the width of the bathroom heater. After the movable volute 302 is released, the movable volute 302 automatically resets to the second position under the action of the spring force, and blocks the second opening again.

[0046] Furthermore, in some embodiments of the present application, a first opening 201 is provided on both side walls of the box body 2 along the width direction, a second opening on the fixed volute 301 is provided in one-to-one correspondence with the first opening 201 , and a movable volute 302 is provided at each first opening 201 .

[0047] Movable volutes 302 are provided on both sides of the box body 2 along the width direction. Even if a large-sized fan 1 is used, the width of the box body 2 will not be too large, and only needs to be slightly larger than the diameter of the fan 1, which further reduces the requirement for the width of the box body 2, and thus the height of the ceiling mezzanine can be reduced.

[0048] The mobile volutes 302 located on both sides of the width direction of the box body 2 can move synchronously or independently. For example, in some embodiments of the present application, the mobile mechanisms located on both sides of the width direction of the box body 2 are movably connected to the box body 2 through a mobile mechanism, that is, the moving position of a single mobile volute 302 can be controlled by controlling the respective mobile mechanisms. The purpose of such a setting is to take into account that the sizes of the mobile volutes 302 located on both sides of the width direction of the box body 2 may be different, that is, when moving from the first position to the second position, the moving distances of the two mobile volutes 302 are different. Therefore, two mobile mechanisms are set to drive the two mobile volutes 302 to move separately, thereby improving the accuracy of the movement process. It is known to those skilled in the art that if the distances moved by the two mobile volutes 302 are equal, a mobile mechanism can also be set to drive the two mobile volutes 302 to move synchronously at the same time. Further, in some embodiments of the present application, the bathroom heater also includes a driving mechanism, which is connected to the mobile mechanism and is used to drive the mobile volute 302 to move. Specifically, the moving mechanism can be a motor, the output shaft of the motor is connected to the gear 5, driving the gear 5 to rotate, the gear 5 is meshed with the rack 3a, and then driving the gear 5 and the rack 3a to move relative to each other, and then driving the movable volute 302 to move between the first position and the second position.

[0049] Furthermore, in some embodiments of the present application, the box body 2 includes a box body 2 main body and a cover plate 6, the box body 2 main body is open on one side along the thickness direction, the cover plate 6 is covered on the open side of the box body 2 main body, and an air inlet 7a is provided on the cover plate 6 corresponding to the fan air inlet 7b.

[0050] Specifically, the fixed volute 301 is arranged in the main body of the box 2, and the box 2 main body is also provided with an air duct 4, which is arranged on one side of the fixed volute 301 along the length direction, and the air duct 4 is connected with the installation cavity surrounded by the fixed volute 301, and a heating component is arranged in the air duct 4, and an air outlet is arranged at a position corresponding to the air duct on the cover plate 6. When the bathroom heater is installed, the air inlet 7a and the air outlet are opposite to the installation hole on the ceiling, and the cover plate 6 is sealed and connected to the installation hole at the edge of the installation hole to ensure that when the bathroom heater is working, the fan 1 sucks the air from the air inlet 7a into the box 2, and then discharges it from the air outlet after being heated by the heating component. Since the interior of the box 2 is airtight, and the movable volute 302 is sealed with the box 2 and the fixed volute 301 in the second position, the air in the interlayer is isolated from the air duct volute structure 3, which prevents the odor in the interlayer of the ceiling from blowing into the room.

[0051] Further, the first opening 201 is formed on two side walls of the box body 2 along the width direction, and the box body 2 is provided with a rib at the first opening 201, and the rib extends from the edge of the first opening 201 to the center of the first opening 201, and the size of the opening space surrounded by the first rib is smaller than the movable volute 302, so as to prevent the movable volute 302 from being separated from the box body 2. At the same time, the provision of the rib facilitates the provision of a sealing strip on the inner side of the rib, so that when the movable volute 302 moves to the second position, the edge of the movable volute 302 is sealed with the first opening 201.

[0052] Further, in some embodiments of the present application, the size of the movable volute 302 located on the air outlet side of the fan 1 is larger than the size of the movable volute 302 on the opposite side. The reason for this setting is related to the structure of the air duct volute. The air duct volute structure 3 surrounded by the movable volute 302 and the fixed volute 301 is itself an irregular circle. The size of the air duct volute at the air outlet is larger. Therefore, the size of the movable volute 302 located on the air outlet side of the fan 1 is larger than the size of the movable volute 302 on the opposite side.

[0053] When the fan 1 needs to be repaired, the gear 5 is rotated to move the movable volute 302 to the first position, that is, after it is completely retracted into the box body 2, the bathroom heater can be taken out from the installation hole of the ceiling for repair.

[0054] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bathroom heater, characterized in that: include: A box body (2), wherein a first opening (201) is provided on at least one side plate of the box body (2) along the width direction; The fan (1) is arranged in the box body (2), and the axial direction of the fan (1) is arranged along the thickness direction of the box body (2); a fixed volute (301), the fixed volute (301) being arranged in the housing (2) and surrounding the fan (1) along the circumference of the fan (1), the fixed volute (301) being provided with a second opening at a position corresponding to the first opening (201); A movable volute (302), wherein the movable volute (302) is movably arranged at the second opening; when the movable volute (302) moves to a first position, the movable volute (302) is retracted into the casing (2); when the movable volute (302) moves to a second position, the movable volute (302) extends out of the casing (2), and an edge of the movable volute (302) is sealed with the second opening.

2. The bathroom heater according to claim 1, characterized in that: The first opening (201) and the second opening are arranged to overlap, and the fixed volute (301) and the side plate of the casing (2) are fixedly connected at the first opening (201) and the second opening.

3. The bathroom heater according to claim 1, characterized in that: A moving mechanism is provided between the moving volute (302) and the casing (2), and the moving mechanism drives the moving volute (302) to move between the first position and the second position.

4. The bathroom heater according to claim 3, characterized in that: The moving mechanism comprises a gear (5) and a rack (3a) meshing with each other, the gear (5) being arranged on the housing (2), and the rack (3a) being arranged on the moving volute (302) and arranged along the width direction of the housing (2).

5. The bathroom heater according to claim 3, characterized in that: The box body (2) is provided with a first opening (201) on both side walls along the width direction, the second opening on the fixed volute (301) is arranged in one-to-one correspondence with the first opening (201), and a movable volute (302) is arranged corresponding to each first opening (201).

6. The bathroom heater according to claim 5, characterized in that: Each movable volute (302) is movably connected to the casing (2) via a movable mechanism.

7. The bathroom heater according to claim 3, characterized in that: It also includes a driving mechanism, which is connected to the moving mechanism and is used to drive the moving volute (302) to move.

8. The bathroom heater according to claim 1, characterized in that: The box body (2) comprises a box body body and a cover plate (6); the box body body is open on one side along the thickness direction; the cover plate (6) is arranged to cover the open side of the box body; and an air inlet (7a) is arranged on the cover plate (6) at a position corresponding to the fan (1).

9. The bathroom heater according to claim 1, characterized in that: The casing (2) is provided with a retaining edge at the first opening (201), and the retaining edge is used to prevent the movable volute (302) from detaching outward from the casing (2).

10. The bathroom heater according to claim 1, characterized in that: The size of the movable volute (302) located on the air outlet side of the fan (1) is larger than the size of the movable volute (302) on the opposite side.

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