WO2021196891A1

WO2021196891A1 - Heating ventilation device

Info

Publication number: WO2021196891A1
Application number: PCT/CN2021/075516
Authority: WO
Inventors: 陈嘉轩; 黄瑞; 梁梓彦; 梁浩辉; 温莹莹; 张小飞
Original assignee: 广东松下环境系统有限公司
Priority date: 2020-03-31
Filing date: 2021-02-05
Publication date: 2021-10-07
Also published as: CN211926025U; TWM614685U

Abstract

Disclosed is a heating ventilation device, comprising a snail housing (130), an air suction opening (201), an exhaust air outlet (202), a circulation air outlet (203), and an air path switching plate (102). The air path switching plate (102) comprises a rotation shaft (220) and an air guide plate (210), wherein the rotation shaft (220) comprises a first protruding portion (310) and a second protruding portion (320); the first protruding portion (310) protrudes towards one end of the outer side of the air guide plate (210); and the second protruding portion (320) protrudes towards the other end of the outer side of the air guide plate (210), and the protruding direction of the second protruding portion is opposite the protruding direction of the first protruding portion (310). The snail housing (130) comprises a second insertion opening (530) and a first fixing portion (510), wherein the second insertion opening (530) is located in a first-upstream-side side wall (131) of the exhaust air outlet (202), and is used for allowing the second protruding portion (320) to be inserted into same; and the first fixing portion (510) is provided on a second-upstream-side side wall (132) opposite the first-upstream-side side wall (131), is used for guiding the first protruding portion (310) from the outer side of the second-upstream-side side wall (132) to the inner side of the second-upstream-side side wall (132), and fixes the first protruding portion (310) in the state in which the second protruding portion (320) is inserted into the second insertion opening (530).

Description

Heating and ventilation device

Technical field

The present disclosure relates to the field of air purification technology, and in particular to a heating and ventilating device applied to indoor environments such as bathrooms.

Background technique

As shown in Figure 1, the prior art bathroom heating and ventilating device includes a suction port 1 that sucks air into the bathroom, and discharges the air sucked in from the suction port 1 to a circulating air outlet 2 in the bathroom, and sucks in the air from the suction port 1. The air is discharged from the exhaust air outlet 3 outside the bathroom, and guides the air from the suction inlet 1 to the exhaust outlet 3 or the snail shell 4 of the circulating air outlet 2. The air sucked from the air inlet 1 is separated and discharged from the circulating air outlet 2 or exhaust The air path switching plate 5 of the air outlet 3. As shown in Figure 2, the air path switching plate 5 arranged upstream of the circulating air outlet 2 or the exhaust air outlet 3 of the snail shell 4 includes: one end is provided with a protrusion 6 protruding to the outer circumference of the air path switching plate 5, and a protrusion 6 The part 6 is provided with an opening 7, and the other end is provided with an insertion port 9 that can be connected to the motor connection structure 8, and the motor 10 for driving the air path switching plate 5 is connected to the motor connection structure 8.

When assembling the wind path switch board 5, the assembler first inserts the end of the wind path switch board 5 with the protrusion 6 into the left opening 11 provided at one end of the snail shell 4; then, the assembler needs to hold the wind path switch board 5 with one hand. Align the insertion port 9 at the other end of the wind path switching plate 5 with the right opening 12 provided at the other end of the snail shell 4, while the other hand inserts the motor connection structure 8 from the outside of the snail shell 4 through the right The opening 12 and the insertion port 9 of the air path switching plate 5; finally, after the motor connection structure 8 is assembled, the screw 13 is used to insert the opening 7 provided in the protrusion 6 to fix the protrusion 6.

However, in the above-mentioned assembly process, the assembler needs to assemble the motor connection structure 8 while holding the air path switching plate 5, which is not convenient for the assembly operation.

Summary of the invention

The present disclosure discloses a heating and ventilating device, which includes a snail shell, an air suction port, an exhaust air outlet, a circulating air outlet and an air path switching plate. The air suction port is used for sucking air in a first space into the snail shell, and the air exhaust outlet It is used to discharge the air sucked into the snail shell to the second space, the circulating air outlet is used to discharge the air sucked into the snail shell to the first space, and the air path switching plate is used to separate the air sucked in from the suction port and discharge the circulating air outlet Or exhaust air outlet, the air path switching plate includes: a rotating shaft and a wind deflector. The air deflector rotates around the rotating shaft and is used to guide air to the exhaust air outlet or the circulating air outlet. The rotating shaft includes: A protruding part and a second protruding part. One end of the first protruding part protrudes from the outer side of the wind guide plate, and the second protruding part protrudes from the other end of the outer side of the wind guide plate opposite to the protruding direction of the first protruding part. The snail shell includes: The second insertion opening and the first fixing part. The second insertion opening is located on the first upstream side wall of the exhaust air outlet for inserting the second protruding part. The first fixing part is arranged opposite to the first upstream side wall On the second upstream side wall to guide the first protrusion from the outside of the second upstream side wall to the inside of the second upstream side wall and insert the second insertion opening into the second protrusion下, fasten the first protrusion.

According to an embodiment of the present disclosure, wherein the first fixing part includes: a support table, an inclined surface, and a shaft guide wall, and in a state where the second protruding part is inserted into the second insertion opening, the support table is used in the second upstream side wall The first protrusion is horizontally supported on the inner side of the sloping surface. The inclined surface has an angle with respect to the horizontal direction. It extends from the support stand to the outside of the second upstream side wall. The shaft guide walls are provided on both sides of the inclined surface to restrain the first protrusion. The part is detached from the inclined surface.

According to an embodiment of the present disclosure, the heating and ventilating device further includes a heating part and a heating support part, the heating part is used to heat the air from the air suction port to the circulating air outlet, and the heating support part is located on the upstream side of the heating part, Used to support the heating part.

According to an embodiment of the present disclosure, wherein the heating support part includes an extension part extending from the heating part side to the support table side, wherein the first protrusion is clamped between the extension part and the support table.

According to an embodiment of the present disclosure, the heating and ventilating device further includes: an air path switching plate motor for driving the rotation shaft connected to the air path switching plate to rotate.

According to an embodiment of the present disclosure, wherein the snail shell includes: a second fixing part to fix the second protrusion on the outer side of the second insertion opening, the second fixing part includes: an inner circumference side ring of the fixing part and an outer circumference side ring of the fixing part, The inner ring of the fixed part is located on the inner peripheral side of the second fixed part and has a motor support opening for inserting the shaft of the air path switching plate motor. The outer ring of the fixed part is located on the outer peripheral side of the inner ring of the fixed part. The protruding part is clamped between the inner peripheral side ring of the fixing part.

According to an embodiment of the present disclosure, wherein the second protrusion includes: an outer circumferential side ring of the protrusion and an inner circumferential side ring of the protrusion, and the outer circumferential side ring of the protrusion is clamped between the inner circumferential side ring of the fixing portion and the outer circumferential side ring of the fixing portion, The inner ring of the protruding portion is located on the inner peripheral side of the outer ring of the protruding portion, and is clamped between the shaft of the air path switching plate motor and the inner ring of the fixed portion.

Description of the drawings

Figure 1 is a structural composition diagram of a heating and ventilating device in the prior art;

Figure 2 is a structural composition diagram of a wind path switching plate of a heating and ventilating device in the prior art;

3 is a schematic diagram of the structure and composition of the snail shell of the heating and ventilating device in the embodiment of the present disclosure;

4 is a schematic diagram of the structural composition of the air path switching plate of the heating and ventilating device in the embodiment of the present disclosure;

5 is a structural schematic diagram of the assembled state of the snail shell and the air path switching plate of the heating and ventilating device in the embodiment of the present disclosure;

Fig. 6 is a structural schematic diagram of the assembled state of the snail shell, the air path switching plate and the heating part of the heating and ventilating device in the embodiment of the present disclosure.

【Symbol Description】

Suction port 1; Circulating air outlet 2; exhaust air outlet 3; snail shell 4; wind path switching plate 5; protrusion 6; opening 7; motor connection structure 8; insertion port 9; motor 10; left opening 11; right Opening 12; screw 13.

Heating and ventilating device 100;

Air supply unit 101; Air path switching board 102;

Blower motor 110; fan blade 120; snail shell 130;

First upstream side wall 131; second upstream side wall 132;

Suction opening 201; exhaust air outlet 202; circulation air outlet 203;

Wind deflector 210; rotating shaft 220;

The first protrusion 310; the second protrusion 320;

Protruding part inner peripheral side ring 410; Protruding part outer peripheral side ring 420;

The first fixing part 510; the second fixing part 520; the second insertion opening 530;

Supporting platform 610; Inclined surface 620; Shaft guide wall 630;

The inner ring of the fixed part 710; the outer ring of the fixed part 720;

Wind path switching plate motor 810; heating part 820; heating support part 830;

Extension 831.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. In addition, the following embodiment is only one of the specific examples of the present disclosure, and does not limit the technical scope of the present disclosure.

In the drawings, the second description of the same components with the same symbols and the descriptions of components not directly related to the present disclosure will be omitted or simplified. In the following description, the direction words such as up, down, left, right, up, and down are all described based on the state shown in the figure of the heating and ventilating device in the embodiment of the present disclosure.

In order to solve the technical problem of poor assembly convenience of the heating and ventilation device in the prior art, the present disclosure discloses a heating and ventilation device.

Hereinafter, the heating and ventilating device of the present disclosure will be described with reference to FIG. 3. FIG. 3 is a schematic diagram of the structural composition of the snail shell of the heating and ventilation device 100 in the embodiment of the present disclosure.

The heating and ventilating device 100 is a device that discharges air sucked in from a first space to a second space, or heats air sucked in from the first space and then discharges to the first space. For example, heating and ventilating equipment or products such as a ventilating fan that can heat the air, and a bath heater installed in the bathroom. The first space and the second space are two separate spaces, for example, partitioned by a wall.

In the embodiment of the present disclosure, the first space may be indoors, and the second space may be outdoors, and the indoor and outdoor spaces are divided by walls. As shown in FIG. 3, the heating and ventilating device 100 includes: a blowing unit 101.

The blowing unit 101 includes a blowing motor 110, a fan blade 120, and a snail shell 130.

The blower motor 110 rotates along the rotating shaft of the blower motor 110 after being energized.

The fan blade 120 is connected with the rotating shaft of the blower motor 110 and rotates due to the rotation of the shaft of the blower motor 110 to drive the generation of air flow.

The snail shell 130 contains a fan blade 120 and a motor 110 inside. The snail shell 130 has an air suction port 201, an exhaust air outlet 202 and a circulation air outlet 203. The snail shell 130 generates an air flow from the air suction port 201 to the exhaust air outlet 202 and/or to the circulation air outlet 203 due to the rotation of the fan blade 120. The snail shell 130 further includes: a first upstream side wall 131 and a second upstream side wall 132.

The suction port 201 is an opening provided for sucking air into the room. For example, when the heating and ventilating device 100 is installed on the ceiling, it is installed on the bottom surface of the snail shell 130.

The exhaust air outlet 202 is an opening provided for blowing the air sucked in from the suction inlet 201 as exhaust air to the outside. For example, when the heating and ventilation device 100 is installed on the ceiling, the exhaust air outlet 202 is installed in the snail shell 130 on the side.

The circulation air outlet 203 is an opening provided for blowing the air sucked in from the air inlet 201 into the room as circulating air, and the circulation air outlet 203 is provided on the downstream side of the heating part described later. For example, when the heating and ventilating device 100 is installed on the ceiling, it is installed on the bottom surface of the snail shell 130.

The first upstream side wall 131 is the side wall of the snail shell 130 located on the upstream side of the exhaust air outlet 202, in other words, is the side wall through which the exhaust air passes before being discharged through the exhaust air outlet 202. The first upstream side wall 131 is located at one side of the exhaust air outlet 202 and is connected to one end of the edge of the exhaust air outlet 202.

The second upstream side wall 132 is a side wall of the snail shell 130 located on the upstream side of the exhaust air outlet 202, in other words, is the side wall through which the exhaust air passes before being discharged through the exhaust air outlet 202. It is arranged opposite to the first upstream side wall 131, and is located on both sides of the exhaust air outlet 202 with the first upstream side wall 131 respectively, and is connected to the other end of the edge of the exhaust air outlet 202.

The air path switching plate of the heating and ventilating device 100 of the present disclosure will be described with reference to FIG. 4. 4 is a schematic diagram of the structural composition of the air path switching plate 102 of the heating and ventilating device 100 in the embodiment of the present disclosure. As shown in FIG. 4, the heating and ventilating device 100 includes an air path switching plate 102.

The air path switching plate 102 is arranged on the upstream side of the exhaust air outlet 202 and the circulation air outlet 203, and separates the air sucked from the air inlet 201, so that the air is discharged from the circulation air outlet 203 and/or the exhaust air outlet 202. Specifically, by changing the angle of the air path switching plate 102, the air sucked in from the air inlet 201 can be discharged from the circulation air outlet 203 and/or the exhaust air outlet 202 after being divided according to a certain ratio. In other words, when the air path switching plate 102 closes the exhaust air outlet 202, air can only be blown out from the circulation air outlet 203. Similarly, when the air path switching plate 102 closes the circulating air outlet 203, air can only be blown out from the exhaust air outlet 202. The wind path switching plate 102 includes: a wind deflector 210 and a rotating shaft 220.

The wind deflector 210 has a plate shape. The rotating shaft 220 described later rotates at the center, and can close the circulation air outlet 203 and/or the exhaust air outlet 202.

The rotating shaft 220 is connected to the air guide plate 210, and the air path switching plate 102 changes the angle around it. In the embodiment of the present disclosure, the connecting part of the rotating shaft 220 and the wind deflector 210 is integrally formed with the wind deflector 210. The rotating shaft 220 includes a first protrusion 310 and a second protrusion 320.

The first protrusion 310 has a cylindrical shape and protrudes outside of one end of the wind deflector 210, in other words, it protrudes beyond the edge of the wind deflector 210. The diameter of the first protrusion 310 is smaller than the width of the first fixing part, and can be inserted into the first fixing part.

The second protrusion 320 protrudes outside the other end of the wind guide plate 210, in other words, its protrusion direction is opposite to the first protrusion. The second protrusion 320 includes a protrusion inner circumferential side ring 410 and a protrusion outer circumferential side ring 420.

The inner peripheral side ring 410 of the protruding portion is a circular ring extending from the outer side of the wind guide plate 210 on the side of the wind guide plate 210, and a position where the shaft of the air path switching plate motor described later can be inserted in the middle is provided.

The protrusion outer ring 420 is an annular ring extending from the outer side of the wind guide plate 210 on the side of the wind guide plate 210. When the second protrusion 320 is inserted into the second fixing portion described later, the inner peripheral side ring of the fixing portion described later is located in the gap.

FIG. 5 is a structural schematic diagram of the assembled state of the snail shell 130 and the air path switching plate 102 of the heating and ventilating device 100 in the embodiment of the present disclosure. As shown in FIG. 5, the second upstream side wall 132 includes a first fixing portion 510.

The first fixing portion 510 is an elongated groove provided on the second upstream side wall 132 and includes an opening for inserting the first protrusion 310 into the first fixing portion 510. The first protrusion 310 inserted into the first fixing part 510 can be guided from the outside of the second upstream side wall 132 to the inside of the second upstream side wall 132, and the second protrusion 320 is inserted into the second insertion opening 530 In the state, the first protrusion 310 is fixed. The first fixing part 510 includes: a support platform 610, an inclined surface 620, and a shaft guide wall 630.

The supporting stand 610 is arranged on the inner side of the second upstream side wall 132 to support and fix the first protrusion 310. In a state where the second protrusion 320 is inserted into the second insertion opening 530, the first protrusion 310 may be horizontally supported. In other words, the support stand 610 is set at almost the same height as the second insertion opening 530 described later, so that after the wind path switching plate 102 is assembled, the position where the first protrusion 310 is fixed and the second protrusion 320 are fixed. The position is almost on the same plane. In the embodiments of the present disclosure, horizontal refers to a horizontal plane or a state where the horizontal plane is almost horizontal, and the horizontal direction is the direction in which the above-mentioned horizontal plane extends.

The inclined surface 620 extends from the support base 610 to the outside of the second upstream side wall 132, in other words, can guide the first protrusion 310 from the outside of the second upstream side wall 132 to the support base 610. It has a certain angle relative to the horizontal direction, that is, it is inclined relative to the horizontal plane.

The shaft guide wall 630 is a surface extending from both sides of the inclined surface 620. It is used to prevent the first protrusion 310 from leaving the inclined surface 620 in the process from the outside of the second upstream side wall 132 to the inside of the second upstream side wall 132. In other words, the movement of the first protrusion 310 to the surface opposite to the exhaust air outlet 202 in the front and rear directions is restricted, so that the first protrusion 310 can only move on the inclined surface 620 provided between the shaft guide walls 630.

Fig. 6 is a structural schematic diagram of the assembled state of the snail shell, the air path switching plate and the heating part of the heating and ventilating device in the embodiment of the present disclosure. As shown in FIG. 6, the first upstream side wall 132 includes: a second insertion opening 530 and a second fixing portion 520.

The second insertion opening 530 is an opening that penetrates the first upstream side wall 131 for allowing the second protrusion 320 to penetrate the first upstream side wall 131.

The second fixing portion 520 communicates with the second insertion opening 530 and is provided at the outer side of the second insertion opening 530 on the first upstream side wall 131. It is used to fix the second protrusion 320 inserted from the second insertion opening 530. The second fixing portion 520 includes a fixing portion inner circumferential side ring 710 and a fixing portion outer circumferential side ring 720.

The inner circumferential side ring 710 of the fixing portion is a circular ring extending from the outside of the second insertion opening 530 to the second insertion opening 530 side, and has a position in the middle where the inner circumferential side ring 410 of the protruding portion can be inserted.

The fixing portion outer ring 720 is a circular ring provided on the outer periphery of the fixing portion inner ring 710, one end of which is connected to the second insertion opening 530, and the other end is bent and connected to the fixing portion inner ring 710. When the second protrusion 320 is inserted into the second fixing portion 520, a gap is provided between the inner ring 710 of the fixing portion and the outer ring 420 of the protrusion can be inserted.

As shown in FIG. 6, the heating and ventilating device 100 further includes an air path switching plate motor 810, a heating part 820, and a heating support part 830.

The air path switching plate motor 810 includes a shaft connected to the air path switching plate 102, and the air path switching plate 102 is driven to change the angle of the air blown by the fan blades 120 after being energized. The wind path switching plate motor 810 may be a device having a rotation driving function such as a stepping motor.

The heating part 820 is arranged on the upstream side of the circulating air outlet 203 and is used for heating the air leading to the circulating air outlet 203. The heating part 820 may be a device for heating air, such as a PTC heater.

The heating support part 830 is located on the upstream side of the heating part 820 and is a support frame supporting the heating part 820. The heating support part 830 includes an extension part 831.

The extension part 831 extends from the heating part 820 side to the support base 610 side, and can clamp the first protrusion 310 between the extension part 831 and the support base 610. In other words, it prevents the first protrusion 310 from being shown in FIG. 6 Movement in the up and down direction shown. Thereby, the first protrusion 310 is fixed to the support base 610.

The above is the configuration of the heating and ventilating device 100.

Next, referring to FIGS. 3 to 6, the assembly of the air path switching plate 102 of the heating and ventilator 100 will be further described. When assembling the air path switching plate 102, the heating and ventilating device 100 needs to be placed in the orientation shown in FIG. On the side.

In the assembly process, as shown in FIGS. 3-6, first, the first protrusion 310 is placed into the first fixing part 510 from the first fixing part 510 close to the outside of the second upstream side wall 132. At this time, The first fixing part 510 slides in the direction of the support platform 610 along the guide of the inclined surface 620, and at the same time, the second protrusion 320 is inclined from the second upstream side wall 132 to the first upstream side wall 131 with the sliding, and Insert the second insertion opening 530. When the first fixing portion 510 reaches the support platform 610, the second protrusion 320 is completely inserted into the second insertion opening 530, and the air path switching plate 102 is horizontally fixed on the upstream side of the exhaust air outlet 202. In the above assembly process, the assembler only needs to hold the air path switch board 102 with one hand and perform the above operations to install the air path switch board 102 on the snail shell 130, and does not need to hold the air path switch board 102 until With the other hand, the wind path switching plate motor 810 is installed. Moreover, since the first fixing portion 510 is provided with the shaft guide wall 630, the first protrusion 310 can slide along the inclined surface 620 without being separated from the first fixing portion 510, thereby simplifying the assembly steps of the air path switching plate 102. Improve the convenience of assembly.

In addition, as shown in FIG. 4, the air path switching plate 102 of the embodiment of the present disclosure also realizes that both ends protrude from the air guide plate 210. In other words, the length of the shaft is longer than the width of the exhaust air outlet 202. In this case, the air path switching plate 102 can be installed on the upstream side of the exhaust air outlet 202 when the curved air path switching plate 102 is not required.

In addition, in order to prevent the water vapor entering the indoor space such as the bathroom in the snail shell 130 from coming into contact with the air path switching plate motor 810 from the air inlet 201. As shown in FIG. 6, in the embodiment of the present disclosure, a second fixing portion 520 is provided on the outside of the second insertion opening 530. When the second protrusion 320 of the air path switching plate 102 is inserted into the second insertion opening 530, the first The inner circumferential side ring 410 and the outer circumferential side ring 420 of the two protruding portions 320 and the inner circumferential side ring 710 and the outer circumferential side ring 720 of the second fixing portion 520 are arranged in a staggered manner. In other words, the protrusion outer ring 420 is clamped between the fixing part inner ring 710 and the fixing part outer ring 720, and the fixing part inner ring 710 is clamped between the protrusion inner ring 410 and the protrusion. Between the outer peripheral side rings 420, multiple protections are formed, so that the water vapor cannot directly contact the air path switching plate motor 810, which improves the safety of the heating and ventilation device 100.

In addition, with the above structure, when installing the air-path switching plate motor 810, it is only necessary to insert the shaft of the air-path switching plate motor 810 from the outside of the first upstream side wall 131 into the innermost protruding part inner circumferential side ring 410, and then It can be connected to the wind path switch board 102, and there is no need to provide a motor connection structure for connecting the wind path switch board and the wind path switch board motor in the prior art, which further saves costs on the basis of simplifying the structure.

In addition, in the embodiment of the present disclosure, the heating support portion 830 is also used. An extension portion 831 extending from the heating portion 820 side to the support table 610 side is provided on the heating support portion 830, and the first protrusion 310 is clamped on the heating support portion 830. Between the extension portion 831 and the support platform 610, the first protrusion 310 is fixed. In this way, it is no longer necessary to use screws as in the prior art to penetrate the second upstream side wall to fix the first protrusion, which further saves costs on the basis of simplified structure, and thus further simplifies the air path switching plate. The assembly steps of 102 improve the convenience of assembly.

The heating and ventilating device of the present disclosure makes the assembly steps of the air path switching plate easier and improves the convenience of assembly.

So far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the present disclosure.

It should be noted that, in the drawings or the main body of the specification, the implementation manners that are not shown or described are all forms known to those of ordinary skill in the art, and are not described in detail. In addition, the above definition of each element is not limited to the various specific structures and shapes mentioned in the embodiments, and those of ordinary skill in the art can simply modify or replace them. E.g:

(1) In the case where other structures remain unchanged, as shown in FIGS. 3 and 5, the inclined surface 620 may also be a surface where the opening for inserting the first protrusion 310 into the first fixing portion 510 is located. When the partial diameter of the first protrusion 310 is longer than the width of the opening of the first fixing part 510, since the first protrusion 310 is cylindrical, the first protrusion 310 cannot be completely inserted into the first fixing part 510. , But there is also a part in the first fixing part 510, clamped between the shaft guide wall 630. Therefore, the first protrusion 310 can also slide along the oblique direction of the opening.

(2) Under the condition that the other structure remains unchanged, the opening for inserting the first protrusion 310 into the first fixing portion 510 can be provided at a position opposite to the circulating air outlet 203 as shown in the figure. It is arranged at a position opposite to the exhaust air outlet 202, in other words, it is arranged on the side facing the assembler standing as shown in Figure 3, Figure 5, and Figure 6;

The effects of the above two points are the same as those of the above-mentioned embodiment.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present disclosure in further detail. It should be understood that the above are only specific embodiments of the present disclosure and are not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Those skilled in the art should understand that the ordinal numbers used in the description and claims, such as "first", "second", etc., are used to modify the corresponding element, which does not mean that the element has any Ordinal numbers do not represent the order of a certain component and another component, or the order in the manufacturing method. The use of these ordinal numbers is only used to make a component with a certain name and another component with the same name can be made. Make a clear distinction.

Claims

A heating and ventilating device, including:

snail shell,

The suction port is used to suck the air in the first space into the snail shell,

The exhaust air outlet is used to exhaust the air sucked into the snail shell to the second space,

The circulating air outlet is used to discharge the air sucked into the snail shell to the first space,

The air path switching plate is used to separate the air sucked in from the air suction port and discharge the circulating air outlet or the exhaust air outlet,

The wind path switching board includes:

Rotating shaft,

The wind deflector, which rotates around the rotating shaft, is used to guide air to the exhaust air outlet or the circulating air outlet,

in:

The rotating shaft includes:

The first protrusion protrudes toward one end of the outer side of the wind deflector,

The second protruding part protrudes to the other end of the outer side of the wind deflector, and is opposite to the protruding direction of the first protruding part,

The snail shell includes:

The second insertion opening is located on the first upstream side wall of the exhaust air outlet and is used for inserting the second protrusion,

The first fixing part is provided on the second upstream side wall opposite to the first upstream side wall, and is used to move the first protruding part from the outside of the second upstream side wall to the The inner side of the second upstream side wall is guided, and the first protrusion is fixed in a state where the second protrusion is inserted into the second insertion opening.
The heating and ventilating device according to claim 1, wherein:

The first fixing part includes:

A support stand for horizontally supporting the first protrusion on the inner side of the second upstream side wall in a state where the second protrusion is inserted into the second insertion opening,

The inclined surface has an angle with respect to the horizontal direction, and extends from the support platform to the outside of the second upstream side wall,

Shaft guide walls are provided on both sides of the inclined surface, and are used to restrain the first protrusion from being separated from the inclined surface.
The heating and ventilating device according to claim 2, wherein the heating and ventilating device further comprises:

The heating part is used to heat the air from the suction port to the circulating air outlet,

The heating support part is located on the upstream side of the heating part and is used to support the heating part.
The heating and ventilating device according to claim 3, wherein the heating support part comprises:

An extension part extends from the heating part side to the support table side,

Wherein, the first protrusion is clamped between the extension part and the support platform.
The heating and ventilating device according to claim 1, wherein the heating and ventilating device further comprises:

The wind path switch board motor is used to drive the shaft connected with the wind path switch board to rotate.
The heating and ventilating device according to claim 5, wherein:

The snail shell includes:

A second fixing portion, fixing the second protruding portion on the outside of the second insertion opening,

The second fixing part includes:

The inner circumferential side ring of the fixed portion is located on the inner circumferential side of the second fixed portion and has a motor support opening for inserting the shaft of the air path switching plate motor,

The outer peripheral side ring of the fixed portion is located on the outer peripheral side of the inner peripheral side ring of the fixed portion, and clamps the second protruding portion between the inner peripheral side ring of the fixed portion.
The heating and ventilating device according to claim 6, wherein:

The second protrusion includes:

The outer circumferential side ring of the protruding portion is clamped between the inner circumferential side ring of the fixed portion and the outer circumferential side ring of the fixed portion,

The inner circumferential side ring of the protruding portion is located on the inner circumferential side of the outer circumferential side ring of the protruding portion, and is sandwiched between the shaft of the air path switching plate motor and the inner circumferential side ring of the fixed portion.