CN218672346U

CN218672346U - Heating air supply device

Info

Publication number: CN218672346U
Application number: CN202222959530.1U
Authority: CN
Inventors: 陈嘉轩; 戴华章; 梁梓彦; 何梓浩
Original assignee: Panasonic Ecology Systems Guangdong Co Ltd
Current assignee: Panasonic Ecology Systems Guangdong Co Ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-21
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a heating air supply arrangement, include: the air conditioner comprises a shell, a fan and a controller, wherein the shell defines an accommodating space, an air inlet and an air outlet which are communicated with the accommodating space are formed in the shell, and air is suitable for entering the accommodating space from the air inlet and being discharged from the air outlet; the air supply part is used for supplying air from the air inlet to the air outlet; a heating portion provided in the accommodation space and on an upstream side of the air outlet; the joint is arranged on the downstream side of the air outlet; the heating part comprises a heating unit for heating air flowing through, and the distance between the lower end of the joint and the lower end of the heating unit is greater than or equal to the insulating distance between the joint and the heating unit in the gravity direction and is less than or equal to the insulating distance + N, wherein N is greater than or equal to 0. The utility model provides a heating air supply arrangement, when restraining the risk of electrocuteeing, the energy saving, satisfy heating air supply demand.

Description

Heating air supply device

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to heating air supply arrangement.

Background

The existing heating air supply device comprises a frame body, an air inlet arranged on the frame body, an air outlet arranged on the side face of the frame body, an air supply unit arranged in the frame body and used for supplying air from the air inlet to the air outlet, and a heating unit arranged on the upstream side of the air outlet and used for heating the air flowing through. In addition, in order to send warm air indoors, a duct is generally used to connect the outlet, and a joint is used to connect the duct and the outlet. Under the action of the air supply unit, air enters the frame body from the air inlet, flows through the heating unit for heating, and then is blown to the joint through the air outlet and further blown to the indoor through the pipeline. Thereby, warm air can be provided to the user.

According to the heating and air-supplying device described above, the greater the distance between the heating unit and the air outlet, the greater the amount of heat that may be lost when the air flowing through the heating unit is blown to the air outlet, and the lower the temperature of the warm air blown out of the air outlet, which may result in the temperature of the air finally blown to the user being lower than the temperature set by the user, or even being colder. In this case, in order to provide comfortable warm air to the user, the heating efficiency of the heating unit is generally increased, so that the temperature of the blown air is increased to compensate for the heat lost when the air is blown to the air outlet, and at the same time, more energy is consumed.

In addition, the distance between the heating unit and the air outlet can be reduced, and the heating unit can be even arranged adjacent to the air outlet. Thereby, comfortable warm air is provided for the user. In the use process, when a user or a maintenance person maintains the heating and air supply device, the user or the maintenance person may touch the joint. Because the heating unit is the electrified part, when the distance between heating unit and the air outlet shortens, the distance between heating unit and air outlet and the joint will shorten, when personnel touched the joint, will probably lead to electrocuteeing. Therefore, a certain creepage distance is usually required between the heating unit and the air outlet to reduce the risk of electric shock. However, when dust in the air accumulates between the joint and the heating unit, conduction may occur, thereby causing an electric shock risk.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a heating air supply arrangement when restraining the risk of electrocuting, the energy saving, satisfy heating air supply demand.

The utility model provides a pair of heating air supply arrangement, include: the air conditioner comprises a shell, a fan and a controller, wherein the shell defines an accommodating space, an air inlet and an air outlet which are communicated with the accommodating space are formed in the shell, and air is suitable for entering the accommodating space from the air inlet and being discharged from the air outlet; the air supply part is used for supplying air from the air inlet to the air outlet; a heating portion provided in the accommodation space and on an upstream side of the air outlet; the joint is arranged on the downstream side of the air outlet; the heating part comprises a heating unit for heating air flowing through, and the distance between the lower end of the joint and the lower end of the heating unit is greater than or equal to the insulating distance between the joint and the heating unit in the gravity direction and is less than or equal to the insulating distance + N, wherein N is greater than or equal to 0.

Further, the joint is made of an insulating material.

Further, still include: the insulating unit is arranged between the heating unit and the joint; and the insulating rib is arranged between the insulating unit and the shell.

Further, the insulating rib is configured such that one end is connected to a lower end of the joint and the other end extends toward an upstream side of the air outlet.

Further, the insulating rib includes:

a bottom surface facing the housing;

a top surface located on the bottom surface facing side and facing the heating unit.

Further, the insulating rib further comprises an inclined plane, the inclined plane is arranged at the other end and connected with the bottom surface and the top surface, the inclined plane inclines from the upstream side of the air outlet to the downstream side of the air outlet, and the inclined plane faces the heating unit.

Further, the insulating rib further comprises a clamping rib, the clamping rib is arranged at one end and located on the top surface, and the clamping rib is configured to protrude towards one side of the heating unit.

Further, the joint further comprises:

an inner peripheral surface and an outer peripheral surface positioned outside the inner peripheral surface,

the distance between the bottom surface and the top surface is smaller than or equal to the distance between the inner circumferential surface and the outer circumferential surface.

Further, the distance between the one end and the other end is less than or equal to P times the distance between the bottom surface and the top surface.

Further, P is 3.

Further, the joint is a conductive material and the N is greater than 0.

Further, a reinforcement distance M is included, and N is smaller than the reinforcement distance M.

Further, the reinforcement distance M is 8mm.

Further, the joint includes: the flange part is arranged between the joint and the shell, comprises an inner surface attached to the shell, an outer surface positioned on the opposite side of the inner surface and a first fixing hole penetrating through the flange part; the heating and air supply device also comprises a fixing part which is suitable for being in contact fit with the flange part, wherein the fixing part comprises a second fixing hole corresponding to the first fixing hole and a fixing part which penetrates through the first fixing hole and is matched with the second fixing hole, and is used for connecting the joint with the shell; the fixing end of the waterproof cover is arranged above the first fixing hole and fixedly connected with the outer surface of the flange portion, the free end of the waterproof cover protrudes towards the outer side of the shell, and the fixing piece protrudes towards the outer side, wherein the orthographic projection of the protruding part of the fixing piece in the gravity direction is located in the orthographic projection of the waterproof cover in the gravity direction.

Further, still include waterproof muscle, waterproof muscle is fixed the week side of first fixed orifices is suitable for with the mounting end is to.

Drawings

Fig. 1 is a schematic structural view of a heating and air-supplying device according to an embodiment of the present invention;

fig. 2 is a perspective view illustrating the fitting of the connector and the housing according to an embodiment of the present invention;

FIG. 3 is a side view of FIG. 2;

fig. 4 is a schematic diagram of positions of the insulating units and the insulating ribs according to an embodiment of the present invention;

FIG. 5 is a side view of FIG. 4;

fig. 6 is a schematic view of a fixing portion according to an embodiment of the present invention.

[ reference numerals ]

A heating and air-supplying device 1000 is provided,

a housing 10, an accommodating space 101, an air inlet 102, an air outlet 103,

a heating part 20, a heating unit 21, a lower end 211 of the heating unit,

an air supply part 30, an air supply unit 31, a snail shell 32, a motor 33,

a joint 40, a joint air inlet 401, a joint air outlet 402, an inner circumferential surface 41, a lower end 411 of the joint, an outer circumferential surface 42,

the insulating unit (50) is provided with a plurality of insulating units,

insulating rib 60, bottom surface 61, top surface 62, inclined surface 63, engaging rib 64,

the flange portion 70, the first fixing hole 701,

a fixing portion 80, a second fixing hole 801, a fixing member 81,

the waterproof cover 90 is provided with a waterproof cover,

a waterproof rib 100.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all, embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The following positional or positional relationships are merely for convenience in describing the present disclosure and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present disclosure. In particular, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance with respect to each other.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. It is to be understood that the embodiments described are some, but not all embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art on the premise of not making creative work all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper, lower, left, right, inner, outer, top, bottom" and the like indicating the orientation or the positional relationship all refer to the orientation or the positional relationship based on the installation state of the heating and air-blowing device. The installation state of the heating air supply device means the state that the heating air supply device can normally operate. The terms "upstream side" and "downstream side" refer to the direction of air flow in the heating and air-blowing device, with the upstream side being the air that flows first and the downstream side being the air that flows later.

In addition, the term "distance" refers to a straight-line distance between two points. The term "creepage distance" refers to the shortest distance between two adjacent conductors or between one conductor and the adjacent motor casing surface, measured along the insulation surface. The term "connected" is to be understood broadly, and may for example be a fixed connection, a removable connection, an integral connection, or the like. Further, for example, the connection may be indirect or direct.

It should be clear that the heating and air-blowing device achieves the purpose of adjusting indexes such as quality, temperature, humidity and the like of air in a target space by blowing air to the target space. The heating according to the present application is to raise the temperature of air in a target space by means of, for example, supplying warm air to the target space or radiating heat.

For convenience of explanation, in the following embodiments, a heating blower is installed on a ceiling, and air sucked into the heating blower is heated by a heating means to deliver warm air to a target space. Based on the technical means, the temperature, the humidity and the like of the air in the target space can be adjusted.

[ first embodiment ] A method for manufacturing a semiconductor device

The embodiment discloses a heating and air supply device 1000, which comprises a shell 10, an air inlet 102, an air outlet 103, a heating part 20, an air supply part 30 and a joint 40.

The casing 10 has a hollow rectangular parallelepiped shape, forms an outer contour of the heating and air-blowing device 1000, and defines a housing space 101 in which the air-blowing part 30 and the heating part 20 can be mounted. The housing 10 includes a lower surface having 6 sides facing the ground, an upper surface positioned above the lower surface, and four side surfaces connecting the lower surface and the upper surface, in a view of the heating blower 1000 being installed on the ceiling. The four side surfaces are a first side surface and a second side surface which are oppositely arranged, a third side surface which is connected with one side of the first side surface and the second side surface, and a fourth side surface which is connected with the other side of the first side surface and the second side surface. It is understood that the upper surface, the lower surface, the first side, the second side, the third side and the fourth side together define the receiving space 101.

The housing 10 is provided with an air inlet 102 and an air outlet 103 communicating with the accommodating space 101, and air is adapted to enter the accommodating space 101 from the air inlet 102 and to be discharged from the air outlet 103.

In one embodiment, the intake vent 102 is an opening in the housing 10 for air to enter the housing 10. The outlet 103 is an opening provided in the casing 10 for blowing air out of the casing 10. For example, as shown in fig. 1, the intake vent 102 and the exhaust vent 103 are provided on the side of the housing 10.

It should be noted that, the specific positions of the air inlet 102 and the air outlet 103 are not limited in the present application, that is, the air inlet 102 and the air outlet 103 may be disposed on the same side surface, or may be disposed on two different side surfaces, respectively. The number of the air inlets 102 and the air outlets 103 is not limited in the present application, and the heating and air-supplying device 1000 may include a plurality of air inlets 102 and/or air outlets 103.

The air supply part 30 may be disposed outside the housing 10 and connected to the housing 10, or may be disposed inside the housing 10 and communicated with the air inlet 102 and the air outlet 103, so as to deliver air from the air inlet 102 to the air outlet 103.

In one embodiment of fig. 1, the air supply part 30 is disposed in the accommodating space 101 and communicates with the air inlet 102 and the air outlet 103. The blower 30 includes a blower unit 31, a snail shell 32, and a motor 33. The snail shell 32 is communicated with the air inlet 102 and the air outlet 103, the air supply unit 31 and the motor 33 are arranged in the snail shell 32, and the motor 33 controls the air supply unit 31 to rotate so as to convey air from the air inlet 102 to the air outlet 103.

The heating unit 20 is provided in the housing space 101, and the heating unit 20 is generally provided on the downstream side of the air blowing unit 30 on the upstream side of the air outlet 103, considering that the heating unit 20 is too far away from the air outlet 103 and causes heat loss. The heating part 20 includes therein a heating unit 21 for heating the air flowing therethrough.

The connector 40 is disposed at a downstream side of the air outlet 103, and is used for connecting the air outlet 103 and an external pipeline. In this embodiment, as shown in fig. 2 and 3, the joint 40 is disposed adjacent to the heating unit 21, the joint 40 includes a joint air inlet 102 connected to the air outlet 103, and a joint air outlet 402 connected to the external pipe, and the joint air inlet 102 is located on the upstream side of the joint air outlet 103. The joint 40 further includes an inner circumferential surface 41 and an outer circumferential surface 42, the inner circumferential surface 41 indicates a surface of the joint 40 on the inner circumference, that is, an inner surface of the joint, and the inner circumferential surface 41 connects the joint outlet 103 and the joint inlet 102 to form an air passage from the joint inlet 102 to the joint outlet 103; the outer peripheral surface 42 is located outside the inner peripheral surface 41, and is the surface of the joint 40 located on the outer periphery, i.e., the outer surface of the joint.

In the present embodiment, the distance between the inner circumferential surface 41 and the outer circumferential surface 42 of the joint is uniform. The distance between the inner circumferential surface 41 and the outer circumferential surface 42 means a vertical distance between the inner circumferential surface 41 and the outer circumferential surface 42, that is, a uniform thickness of the joint 40.

In the direction of gravity, the distance between the lower end 411 of the joint and the lower end 211 of the heating unit is greater than or equal to the insulation distance of the insulation between the joint 40 and the heating unit 21, and is less than or equal to the insulation distance + N. Wherein N is greater than or equal to 0.

The lower end 411 of the joint means the lowest edge of the lower end of the joint inlet 102 in the gravity direction, i.e., the inner circumferential surface 41 of the joint when it is connected to the outlet 103. By lower end 211 of the heating unit is meant the lowest position of the heating unit 21 in the direction of gravity, i.e. the position where the heating unit 21 is closest to the lower end 411 of the joint in the direction of gravity. The distance between the lower end 411 of the joint and the lower end 211 of the heating unit is the linear distance between the lowest point of the joint when the inner circumferential surface 41 is connected to the outlet 103 and the position of the heating unit 21 closest to the joint 40. In this embodiment, this distance may be understood as the height between the lower end 411 of the joint to the lower end 211 of the heating unit.

As shown in fig. 3, the positions of the lower end 411 of the joint and the lower end 211 of the heating unit are marked. It should be noted that the lower end 411 of the joint is the lowest point when the inner peripheral surface 41 of the joint is connected to the air outlet 103, and on the premise that the wall thickness of the joint 40 is uniform, the lowest point when the inner peripheral surface 41 of the joint is connected to the air outlet 103 is the same as the lowest point when the outer peripheral surface 42 of the joint is connected to the air outlet 103, and the lowest point of the outer peripheral surface 42 of the joint is schematically indicated in fig. 3, and it can be understood that this position is also the lowest point of the inner peripheral surface 41 of the joint, that is, the lower end 411 of the joint.

The insulation distance means that the creepage distance between the lower end 411 of the joint and the heating unit 21 in the direction of gravity is sufficient to insulate the joint 40 from the heating unit 21.

In this embodiment, let H be the distance between the lower end 411 of the joint and the lower end 211 of the heating unit, and one segment of the distance between the lower end 411 of the joint and the lower end 211 of the heating unit constitutes the creepage distance between the joint 40 and the heating unit 21. In this embodiment, the distance H is greater than or equal to the insulation distance, and is less than or equal to the insulation distance plus N, where N is greater than or equal to 0.

Note that, although the present embodiment is explained when N is equal to 0 when the contact 40 is made of an insulating material, N may be set to be larger than 0 when the contact 40 is made of an insulating material. The overall height dimension, i.e. the limit on the distance H, can be compressed when N is equal to 0, while the creepage distance can be increased when N is greater than 0.

In the present embodiment, the tab 40 is formed of an insulating material. That is, under normal conditions, the joint 40 is not electrically conductive.

Further, in this embodiment, N is equal to 0.

Further, in the present embodiment, the heating and air-blowing device 1000 further includes an insulating unit 50 disposed between the heating unit 21 and the connector 40. The space between the heating unit 21 and the joint 40 is defined to separate the heating unit 21 and the joint 40 from each other, so that the heating unit 21 and the joint 40 are not in contact with each other.

In the present embodiment, the insulation unit 50 is an insulation sheet formed of an insulation material, and one end of the insulation sheet is in contact with the heating unit 21.

In some embodiments, the heating and air-blowing device 1000 further comprises an insulating rib 60 disposed between the insulating unit 50 and the casing 10. The insulating unit 50 is provided between the insulating unit 50 and the housing 10, that is, the insulating unit 50 and the housing 10 are separated from each other so that the insulating unit 50 and the housing 10 do not contact each other.

The insulating rib 60 is formed of an insulating material, and the insulating rib 60 includes one end near the lower end 411 of the joint, and the other end opposite to the one end. That is, one end of the insulating rib is closer to the lower end 411 of the contact than the other end.

According to the utility model discloses an embodiment, the one end of insulating muscle is connected with the lower extreme 411 that connects, and the other end of insulating muscle extends to the upstream side of air outlet, and for example, the one end of insulating muscle can the lug connection with the lower extreme that connects, also can the indirect connection.

In this embodiment, as shown in fig. 4 and 5, one end of the insulating rib is integrally connected to the lower end 411 of the joint, and is formed to protrude and extend from the lower end 411 of the joint toward the upstream side in the air outlet direction.

In other embodiments, the insulating rib 60 may be provided separately from the connector 40.

According to one embodiment of the present invention, the insulating rib 60 includes a bottom surface 61 facing one side of the housing 10, and a top surface 62 located opposite the bottom surface 61 and facing the heating unit. In this embodiment, the top surface 62 is located above the bottom surface 61, and since one end of the insulating rib is connected to the lower end 411 of the connector, the top surface 62 constituting the insulating rib can be an extension surface of the inner circumferential surface 41 of the connector. In the present embodiment, a part of the flange portion 70 protrudes from the bottom surface 61 toward the outer peripheral side of the joint 40.

The insulating rib 60 further comprises a slope 63 provided on the other end, the slope 63 connecting the bottom surface 61 and the top surface 62 and sloping from the upstream side of the outlet to the downstream side of the outlet, the slope facing the heating unit. As shown in fig. 5, the inclined surface 63 is inclined from the other end of the insulating rib to one end, and from the bottom surface 61 to the top surface 62. More specifically, the slope 63 is inclined from the lower side upward, from the upstream side toward the downstream side.

According to one embodiment of the present invention, the insulating ribs 60 further include a snap rib 64. The engagement rib 64 is provided on one end of the insulating rib, on the top surface 62 of the insulating rib, and is configured as a convex rib formed to protrude from the top surface 62 of the insulating rib toward the heating unit 21 side. The plurality of engaging ribs 64 may be provided, and the plurality of engaging ribs 64 gradually decrease toward the upstream side in a step shape.

In this embodiment, the distance H1 between the bottom surface 61 and the top surface 62 of the insulating rib is smaller than or equal to the distance H2 between the inner circumferential surface 41 and the outer circumferential surface 42 of the joint. That is, the distance H1 between the bottom surface 61 and the top surface 62 of the bead is less than or equal to the wall thickness H2 of the joint.

In this embodiment, the distance L1 between one end and the other end of the insulating rib is less than or equal to P times the distance H1 between the bottom surface 61 and the top surface 62 of the insulating rib. That is, the distance L1 between one end and the other end of the insulating rib is less than or equal to the wall thickness H2 of the joint.

In one embodiment, P is 3. That is, the distance L1 between one end and the other end of the insulating rib is less than or equal to 3 times the distance H1 between the bottom surface 61 and the top surface 62 of the insulating rib, i.e., L1 is less than or equal to 3H 1.

Based on the above technical features, the problems and solutions of the conventional heating and blowing device 1000 will be explained in detail below based on the problems and solutions of the conventional heating and blowing device, which are solved for the case where a person touches the connector 40 to cause an electric shock and the case where a conduction electric shock occurs when dust accumulates between the connector 40 and the heating unit 21.

When the heating and air blowing device 1000 starts to operate, air is fed into the accommodating space 101 of the housing 10 from the air inlet 102 under the action of the motor 33, flows through the snail shell 32 and the air blowing unit 31, is heated in the heating unit 21, and is blown out to the target space through the air outlet 103 and the connector 40 through an external connecting pipeline. In order to heat the air by the heating unit 21, the heating unit 21 needs to be connected to a power source.

In some embodiments of the present application, since the joint 40 is formed of an insulating material and the insulating unit 50 is disposed between the heating unit 21 and the joint 40, the current of the heating unit 21 is not conducted through the joint 40 under normal no-touch condition. However, in some cases, for example, when a user touches the outer circumferential surface 42 of the connector with a serviceman, the creepage distance from the connector 40 to the heating unit 21 may be short, and the problem of electric shock may occur.

Thus, in an embodiment of the invention, the lower end 411 of the joint is at a distance from the lower end 211 of the heating unit, which distance must be greater than or equal to the insulation distance. It is thus ensured that even if an electrical leakage occurs in the heating unit 21, the creepage distance between the heating unit 21 and the lower end 411 of the joint is increased due to the distance between the lower end 411 of the joint and the lower end 211 of the heating unit being greater than or equal to the insulation distance, so that the current is weakened during conduction along the lower end 211 of the heating unit, the insulation unit 50, the lower end 411 of the joint in that order, to ensure that the creepage distance between the outer peripheral surface 42 of the joint and the lower end 211 of the heating unit is increased, thereby reducing the risk of electric shock.

With the use of the heating blower 1000, dust in the air may fall and adhere to the inner circumferential surface 41 of the joint, and particularly, may be accumulated at the lower end of the inner circumferential surface 41 of the joint. When the dust is accumulated to a certain extent and height, a creepage distance between the lower end 411 of the joint and the heating unit 21 is shortened, thereby causing the heating unit 21 to be electrically conducted with the lower end 411 of the joint or the heating unit 21 to be electrically conducted with the housing 10.

Therefore, in some embodiments of the present application, an insulating rib 60 is provided between the insulating unit 50 and the housing 10 to increase a creepage distance between the heating unit 21 and the housing 10. When the heating unit 21 leaks electricity, the current is conducted to the casing 10 along the surfaces of the lower end 211 of the heating unit, the insulating unit 50 and the insulating rib 60 in sequence, and the insulating rib 60 is arranged between the insulating unit 50 and the casing 10, so that the creepage distance between the lower end 211 of the heating unit and the casing 10 is increased, and even if the lower end 211 of the heating unit is electrically conducted with the casing 10 due to dust accumulation, the creepage distance is increased due to the increase of the insulating rib 60, and the electric shock risk can be reduced.

In addition, in an embodiment of the present invention, the distance H1 between the bottom surface 61 and the top surface 62 of the insulating rib is less than or equal to the distance H2 between the inner circumferential surface 41 and the outer circumferential surface 42 of the joint 40, so that it is possible to prevent the position of the joint 40 on the opposite side of the insulating rib 60 from collapsing inward and contracting due to the excessive thickness of the insulating rib 60.

In one embodiment of the present invention, the distance L1 between one end and the other end of the insulating rib is less than or equal to 3 times the distance H1 between the bottom surface 61 and the top surface 62 of the insulating rib. That is, the length of the insulating rib 60 in the direction extending from the connector inlet 102 to the upstream side of the outlet is less than or equal to 3 times the thickness of the insulating rib. This ensures the strength of the insulating rib 60 and prevents the insulating rib 60 from being broken during the loading and unloading maintenance of the joint 40.

In one embodiment of the present invention, the insulating rib 60 further includes an inclined surface 63. When a user or a serviceman finishes the heating and air blowing maintenance and inserts the connector 40 into the air outlet 103, the inclined surface 63 inclines from the bottom to the bottom and from the inside of the housing 10 to the connector 40 side, so that the inclined surface 63 contacts the insulating unit 50 first during the installation process, and the insulating rib 60 can be smoothly inserted into the gap between the insulating unit 50 and the housing 10 under the guidance of the inclined surface 63, so that the connector 40 can be smoothly installed to the air outlet 103.

In addition, in an embodiment of the present invention, the insulating rib 60 is further provided with a fastening rib 64, and when the insulating rib 60 is inserted between the insulating unit 50 and the housing 10, the lower end of the insulating unit 50 interferes with the fastening rib 64, so that the connector 40 cannot be inserted into the housing 10 again. This can prevent the contact 40 from being inserted too deeply during installation, thereby causing a problem of interference with other components.

[ second embodiment ]

A second embodiment of the present invention will be explained below.

The embodiment discloses a heating and air supply device 1000, which comprises a housing 10, an air inlet 102, an air outlet 103, an air supply part 30, a heating part 20 and a joint 40.

The air supply unit 30 may be disposed outside the housing 10 and connected to the housing 10, or may be disposed inside the housing 10 and connected to the air inlet 102 and the air outlet 103, so as to supply air from the air inlet 102 to the air outlet 103.

In this embodiment, the air supply part 30 is disposed in the accommodating space 101 and communicates the air inlet 102 and the air outlet 103, and the air supply part 30 includes an air supply unit 31, a snail shell 32 and a motor 33. The snail shell 32 is communicated with the air inlet 102 and the air outlet 103, the air supply unit 31 and the motor 33 are arranged in the snail shell 32, and the motor 33 controls the air supply unit 31 to rotate to convey air from the air inlet 102 to the air outlet 103.

The joint 40 is disposed on the downstream side of the air outlet 103 and is used for connecting the air outlet 103 and an external pipeline. In the present embodiment, as shown in fig. 2 and 3, the joint 40 is disposed adjacent to the heating unit 21. The joint 40 includes a joint intake port 102 connected to the intake port 103, and a joint outtake port 402 connected to an external pipe, the joint intake port 102 being on the upstream side of the joint outtake port 103. The flange portion 70 is used for connecting the connector 40 and the housing 10, and is disposed on the side of the connector inlet 401.

The distance between the lower end 411 of the joint and the lower end 211 of the heating unit is greater than or equal to the insulation distance of the insulation between the joint 40 and the heating unit 21 in the direction of gravity, and is less than or equal to the insulation distance + N. Wherein N is greater than or equal to 0.

It should be noted that this embodiment is an explanation of N being greater than 0.

The lower end 411 of the joint means the lowest edge of the lower end of the joint inlet 102 in the gravity direction, i.e., the inner circumferential surface 41 of the joint when it is connected to the outlet 103. The lower end 211 of the heating unit refers to the lowest position of the heating unit 21 in the gravity direction, i.e., the position of the heating unit 21 closest to the lower end 411 of the joint in the gravity direction. The distance between the lower end 411 of the joint and the lower end 211 of the heating unit is a linear distance between the lowest point of the inner circumferential surface 41 of the joint when connected to the outlet 103 and the position of the heating unit 21 closest to the joint 40. In this embodiment, this distance may be understood as the height between the lower end 411 of the joint to the lower end 211 of the heating unit.

In this embodiment, let H be the distance between the lower end 411 of the joint and the lower end 211 of the heating unit, and one segment of the distance between the lower end 411 of the joint and the lower end 211 of the heating unit constitutes the creepage distance between the joint 40 and the heating unit 21.

In this embodiment, the distance H is greater than or equal to the insulation distance, and is less than or equal to the insulation distance plus N, where N is greater than or equal to 0.

In the present embodiment, the joint 40 is formed of a metal material.

Further, in this embodiment, N is greater than 0.

Further, in this embodiment, the heating and air-blowing device 1000 further includes an insulating unit 50 disposed between the heating unit 21 and the connector 40. The space between the heating unit 21 and the joint 40 is defined to separate the heating unit 21 and the joint 40 from each other, so that the heating unit 21 and the joint 40 are not in contact with each other.

In this embodiment, the heating and blowing device 1000 further includes a reinforcement distance M, and N is smaller than the reinforcement distance M. That is, in this embodiment, the distance H between the lower end 411 of the joint and the lower end 211 of the heating unit is greater than or equal to the insulation distance, and less than or equal to the value of the insulation distance plus N, i.e., the insulation distance H ≦ insulation distance + M.

In this embodiment, the reinforcing distance M is 8mm, the insulating distance is 8mm, N is greater than 0 and less than M, and N is greater than 0 and less than 8mm. That is, the distance H between the lower end 411 of the joint and the lower end 211 of the heating unit is 8mm ≦ H < 16mm.

Based on the above technical features, a detailed description of the second embodiment is explained below.

When the heating and air blowing device 1000 starts to operate, air is fed into the accommodating space 101 of the housing 10 from the air inlet 102 under the action of the motor 33, flows through the snail shell 32 and the air blowing unit 31, is heated in the heating unit 21, and is blown out to the target space through the air outlet 103 and the connector 40 through an external connecting pipeline.

In this embodiment, since the contact 40 is made of a conductive metal material, when a user or a service person touches the outer peripheral surface 42 of the contact with his/her hand, an electric shock may occur.

Therefore, in the present embodiment, the distance between the lower end 411 of the joint and the lower end 211 of the heating unit is greater than or equal to the insulation distance, and is set less than or equal to the insulation distance + N. Wherein N is greater than or equal to 0 and less than the reinforcement distance M.

In one embodiment, the insulation distance is 8mm and the reinforcement distance M is 8mm. Thus, the distance between the lower end 411 of the joint and the lower end 211 of the heating unit is greater than or equal to 8mm and less than 16mm.

The air outlet 103 and the height difference that connects between air intake 401 are too big, lead to the air to form the turbulent flow in the sunken department between the lower extreme 411 of joint and casing 10, produce the noise, this application through the upper limit restriction to the distance between the lower extreme 411 of joint and the lower extreme 211 of heating unit, can be when guaranteeing the creepage distance between the lower extreme 411 of joint and the lower extreme 211 of heating unit, can prevent to connect the condition that the distance between the lower extreme 411 of joint and the lower extreme 211 of heating unit is too big to produce the noise. The electric shock risk is reduced, and the noise is suppressed, thereby ensuring the miniaturization of the heating and air supply device 1000.

[ third embodiment ]

The third embodiment of the present invention is explained below, the contents of the third embodiment can be added to the first and second embodiments, and the same parts as those of the first and second embodiments will not be described again.

In this embodiment, the joint 40 includes a flange portion 70 disposed between the joint 40 and the housing 10, the flange portion 70 includes an inner surface attached to the housing 10 and an outer surface located on an opposite side of the inner surface, and the flange portion 70 is provided with a first fixing hole therethrough.

The heating and air-blowing device 1000 further includes a fixing portion 80 disposed in contact with the flange portion 70, and the fixing portion 80 includes a second fixing hole 801 corresponding to the first fixing hole 701 and a fixing member 81 penetrating through the first fixing hole 701 and engaged with the second fixing hole 801. The fixing portion 80 is used to fix the terminal 40 to the housing 10, specifically, to fix the terminal 40 to one side surface of the housing.

As shown in fig. 6, the fixing portion 80 is a schematic view for fixing the housing 10 and the connector 40. The fixing portion 80 includes a second fixing hole 801 and a fixing member 81. The second fixing hole 801 is a through hole penetrating the housing 10 and is opened in the housing 10. The fixing member 81 may be engaged with the second fixing hole 801, penetrate through the first fixing hole 701 when fixing is performed, and be screw-engaged with the second fixing hole 801, for connecting the joint 40 and the housing 10. In this embodiment, the fixing member 81 is a screw.

The heating and air supplying device 1000 further comprises a waterproof cover 90, a fixed end of the waterproof cover is arranged above the first fixing hole 701 and fixedly connected with the outer surface of the flange portion, and a free end of the waterproof cover protrudes towards the outer side far away from the shell. That is, the waterproof cover 90 protrudes from the outer surface of the flange portion to the outside away from the housing. And, an orthogonal projection of a portion of the fixing member 81 protruding toward the outside in the gravity direction is located within an orthogonal projection of the waterproof cover 90 in the gravity direction. That is, the distance between the free end and the fixed end of the waterproof cover 90 is greater than the distance that the fixing member 81 extends beyond the outer surface of the flange portion 70 after the installation is completed.

In this embodiment, the waterproof cover 90 has a downward opening, which is shaped like a C, when viewed from the direction from the connector outlet 103 to the connector inlet 102, i.e., the front view of fig. 2. In other embodiments, the waterproof cover 90 may be a rib provided above the fixing member.

In addition, in the embodiment, the heating and air-blowing device 1000 further includes a waterproof rib 100, and the waterproof rib 100 is fixed on the inner peripheral side of the first fixing hole and adapted to abut against the fixing element 81.

The waterproof rib 100 is a rib extending from the inner peripheral side of the fixing hole to the outer surface side of the flange portion, and the outer peripheral edge of the waterproof rib is located inside the outer peripheral edge of the fixing member. That is, in the present embodiment, as seen from the direction perpendicular to the screw mounting direction in fig. 6, the screw includes the screw head and the screw rod that are integrally connected, a portion of the screw rod is screw-fitted to the inner peripheral side of the second fixing hole, a gap is present between another portion of the screw rod and the inner peripheral side of the first fixing hole, and the waterproof rib 100 is provided on the inner peripheral side of the first fixing hole and abuts against the outer peripheral edge of the screw head.

Based on the above technical features, a specific embodiment of the present embodiment will be described below.

Because the top of mounting 81 is equipped with waterproof cover 90 and can be covered by waterproof cover 90 completely, even consequently there is the water droplet to drip, can prevent that the water droplet from directly dripping to mounting 81 on, waterproof cover 90 of this application is the C font that the opening faces down, can assemble the water droplet and guide both sides landing, avoids entering into in the casing 10 along the gap between mounting 81 and first fixed orifices 701, the second fixed orifices 801.

Because the inner peripheral side of the first fixing hole is provided with the waterproof rib 100, and the outer peripheral edge of the waterproof rib is located on the inner side of the outer peripheral edge of the fixing member, the waterproof rib 100 can fill the gap between the fixing member 81 and the first fixing hole 701, and water drops can be prevented from entering the housing 10 along the gap.

In addition, even if water drops drip onto the fixing member 81, since at least a portion of the fixing member protrudes beyond the outer surface of the flange portion after the completion of the installation, at least a portion of the outer surface protruding beyond the flange portion may collect water drops, and the amount of water drops may accumulate to some extent and drip under the action of gravity. Water droplets can thereby be further prevented from entering the housing 10 along the gap between the fixing member 81 and the first fixing hole 701.

In the description of the present disclosure, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connecting" are to be interpreted broadly, and may be, for example, mechanical or electrical; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood in a specific case to those of ordinary skill in the art.

The following is a description of embodiments of the present disclosure.

So far, the embodiments of the present invention have been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly understand the present invention.

It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. In addition, the above definitions of the components are not limited to the specific structures and shapes mentioned in the embodiments, and those skilled in the art may easily modify or replace them. For example: the air inlet of the ventilation fan side and the air inlet of the circulation fan side are two air inlets which are not communicated with each other.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A heating air supply device comprises:

the air conditioner comprises a shell, a fan and a controller, wherein the shell defines an accommodating space, an air inlet and an air outlet which are communicated with the accommodating space are formed in the shell, and air is suitable for entering the accommodating space from the air inlet and being discharged from the air outlet;

the air supply part is used for supplying air from the air inlet to the air outlet;

a heating portion provided in the accommodation space and on an upstream side of the air outlet;

the joint is arranged on the downstream side of the air outlet;

characterized in that the heating part comprises a heating unit for heating the air flowing through,

in the gravity direction, the distance between the lower end of the joint and the lower end of the heating unit is greater than or equal to the insulation distance between the joint and the heating unit, and is less than or equal to the insulation distance + N, wherein N is greater than or equal to 0.

2. A heating air supply unit as claimed in claim 1, wherein the connector is of insulating material.

3. The warming air-blowing apparatus of claim 2, further comprising:

the insulating unit is arranged between the heating unit and the joint;

and the insulating rib is arranged between the insulating unit and the shell.

4. The heating air supply device according to claim 3, wherein the insulating rib is configured such that one end thereof is connected to a lower end of the joint and the other end thereof extends upstream of the air outlet.

5. The warming air supply apparatus according to claim 4, wherein the insulating rib includes:

a bottom surface facing the housing;

6. The warming air-supplying apparatus according to claim 5, wherein the insulating rib further includes an inclined surface provided at the other end, the inclined surface connecting the bottom surface and the top surface and being inclined from an upstream side of the air outlet to a downstream side of the air outlet, the inclined surface facing the heating unit.

7. The warming air supply apparatus of claim 6, wherein the insulating rib further comprises a snap rib provided at the one end and on the top surface, configured to protrude to one side of the heating unit.

8. A heating air supply unit according to any one of claims 5 to 7, wherein the joint further includes:

an inner peripheral surface and an outer peripheral surface located outside the inner peripheral surface,

the distance between the bottom surface and the top surface is smaller than or equal to the distance between the inner peripheral surface and the outer peripheral surface.

9. The heating and air-blowing device according to any one of claims 5 to 7, wherein a distance between the one end and the other end is less than or equal to P times a distance between the bottom surface and the top surface.

10. A heating air supply arrangement as recited in claim 9 wherein P is 3.

11. The warming air supply apparatus of claim 8, wherein a distance between the one end and the other end is less than or equal to P times a distance between the bottom surface and the top surface.

12. A heating air supply arrangement as recited in claim 11 wherein said P is 3.

13. The warming air supply apparatus of claim 1, wherein the connector is an electrically conductive material and N is greater than 0.

14. The warming air supply apparatus of claim 13, further comprising a reinforcement distance M, wherein N is less than reinforcement distance M.

15. A heating air supply unit as claimed in claim 14, wherein the reinforcement distance M is 8mm.

16. A heating air supply arrangement as recited in claim 1, wherein said junction comprises:

a flange portion provided between the joint and the housing, the flange portion including an inner surface that is attached to the housing and an outer surface that is located on a side opposite to the inner surface,

a first fixing hole penetrating through the flange part;

the heating and air supply device also comprises a fixing part which is suitable for being in contact fit with the flange part, wherein the fixing part comprises a second fixing hole corresponding to the first fixing hole and a fixing part which penetrates through the first fixing hole and is matched with the second fixing hole, and is used for connecting the joint with the shell;

a fixed end of the waterproof cover is arranged above the first fixing hole and fixedly connected with the outer surface of the flange part, a free end of the waterproof cover protrudes to the outer side far away from the shell,

the orthographic projection of the part, protruding towards the outside, of the fixing piece in the gravity direction is located within the orthographic projection of the waterproof cover in the gravity direction.

17. The heating air supply device according to claim 16, further comprising a waterproof rib fixed to an inner peripheral side of the first fixing hole and adapted to abut against the fixing member.