CN111219775B

CN111219775B - Heating device

Info

Publication number: CN111219775B
Application number: CN201811415876.7A
Authority: CN
Inventors: 谢新艳; 杨鑫; 赵诚; 李腾鹤; 康宽洋
Original assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2022-03-22
Anticipated expiration: 2038-11-26
Also published as: CN111219775A

Abstract

The invention discloses a warmer, comprising: the heat exchanger comprises a shell, a heat exchange piece and an airflow driving piece. A plurality of ventilation openings which are communicated with the inner space and the outer space of the shell are formed on the shell, the plurality of ventilation openings comprise a first ventilation opening and a second ventilation opening, and a flow guide cavity which is respectively communicated with the first ventilation opening and the second ventilation opening is formed in the shell; at least one part of the heat exchange piece is arranged in the flow guide cavity, and the heat exchange piece is arranged between the first ventilation opening and the second ventilation opening; the airflow driving member is rotatably connected with the housing between a first state and a second state, the airflow driving member is provided with an inlet and an outlet, the inlet is opposite to the first ventilation opening and the outlet is opposite to the second ventilation opening in the first state, and the inlet is opposite to the second ventilation opening and the outlet is opposite to the first ventilation opening in the second state. According to the warmer provided by the embodiment of the invention, the air supply direction of the warmer can be adjusted through the rotation of the airflow driving piece.

Description

Heating device

Technical Field

The invention relates to a temperature adjusting device, in particular to a warmer.

Background

In the related art, the heaters mainly radiate by radiation, natural convection and forced convection, so that the purpose of adjusting the indoor temperature can be achieved. In order to improve the effect of temperature adjustment, a bidirectional wind wheel is arranged in the related art to adjust the wind direction, so that heating in different directions is realized.

Specifically, in the related art, the heater is located in front of the blowing port, the bidirectional motor drives the bidirectional wind wheel, and bidirectional switching of the air inlet and the air outlet is realized through the wind guiding effect of the volute.

However, in the related art, the cost is high due to the adoption of the bidirectional fan.

Disclosure of Invention

One object of the present invention is to provide a warmer that can perform bidirectional air supply without using a bidirectional wind wheel.

The warmer according to the embodiment of the present invention comprises: the heat exchanger comprises a shell, a heat exchange piece and an airflow driving piece. A plurality of ventilation openings communicated with the inner space and the outer space of the shell are formed in the shell, the plurality of ventilation openings comprise a first ventilation opening and a second ventilation opening, and a flow guide cavity respectively communicated with the first ventilation opening and the second ventilation opening is formed in the shell; at least one part of the heat exchange piece is arranged in the flow guide cavity, and the heat exchange piece is arranged between the first ventilation opening and the second ventilation opening; the airflow driving member is rotatably connected with the housing between a first state and a second state, the airflow driving member is provided with an inlet and an outlet, the inlet is opposite to the first ventilation opening and the outlet is opposite to the second ventilation opening in the first state, and the inlet is opposite to the second ventilation opening and the outlet is opposite to the first ventilation opening in the second state.

According to the warmer provided by the embodiment of the invention, the airflow driving piece can realize adjustment in different states through rotation, so that the inlet and the outlet of the airflow driving piece are respectively corresponding to different ventilation openings, and the air supply direction of the warmer is adjusted through rotation of the airflow driving piece. Thereby need not to adopt two-way fan, reduce cost effectively.

In some embodiments, the airflow driver comprises: the air channel is arranged in the flow guide cavity, and the inlet and the outlet are formed on the air channel; the wind wheel is arranged in the air duct and drives airflow to flow from the inlet to the outlet, wherein the air duct is rotatably connected with the shell.

In some embodiments, the diversion cavity includes a diversion opening, a first end of the diversion opening faces the airflow driving member, a second end of the diversion opening extends towards the second ventilation opening, the diversion opening has a first side wall and a second side wall parallel to the axis of the wind wheel, the first side wall is a circular arc-shaped plate taking the axis of the wind wheel as a center, and a distance between an inner side surface of the first side wall and the axis of the wind wheel is greater than a distance between an edge of the outlet and the axis of the wind wheel by 0 mm to 10 mm.

In some embodiments, a first baffle extending in a direction away from the airflow driving member is connected to an edge of the first side wall at the first end of the diversion port, a second baffle extending in the direction away from the airflow driving member is disposed at an edge of the second side wall at the first end of the diversion port, a plurality of first vents respectively corresponding to the first baffle and the second baffle are disposed on the housing, the first baffle and the second baffle respectively extend above the corresponding first vents, and the airflow driving member is located at the first state, and an upper edge of the outlet of the air duct is flush with the first baffle.

In some embodiments, when the airflow driving member is in the second state, the outlet of the air duct is opposite to the diversion port, extends into the diversion port, or passes through the diversion port upward.

In some embodiments, a portion of the baffle cavity opposite to the heat exchanging member is configured in a shape that is tapered or divergent in a direction from the first vent opening to the second vent opening.

In some embodiments, the first ventilation opening is disposed at a lower portion of the housing, and the second ventilation opening is disposed at an upper portion of the housing.

In some embodiments, the first ventilation opening includes at least two openings disposed on front and rear sides of the housing, and the second ventilation opening includes at least one opening disposed on a top wall of the housing.

In some embodiments, the heat exchange member is disposed between the airflow driving member and the second ventilation opening.

In some embodiments, at least one of the first vent and the second vent includes a plurality of micro-holes arranged at intervals, and the diameter of the micro-holes is in a range of 1 mm to 10 mm.

In some embodiments, the housing comprises: the front shell and the rear shell are spliced front and back, the flow guide cavity is formed between the front shell and the rear shell, and openings are formed between the upper edge of the front shell and the upper edge of the rear shell and between the lower edge of the front shell and the lower edge of the rear shell; the bottom plate covers the bottom opening of the diversion cavity; the top plate covers the top opening of the diversion cavity.

In some embodiments, the front case is formed in a shape in which a middle portion in the left-right direction is forward convex, and the rear case is formed in a shape in which a middle portion in the left-right direction is backward convex.

In some embodiments, the vent is formed on both the top plate and the bottom plate.

Drawings

FIG. 1 is an exploded view of a warmer of one embodiment of the present invention.

FIG. 2 is a schematic view of an airflow driver in a warmer of one embodiment of the present invention.

FIG. 3 is a schematic view of an airflow driver in a warmer of one embodiment of the present invention.

FIG. 4 is a schematic view of an airflow driver in a warmer of one embodiment of the present invention, where the airflow driver is in a different state in FIGS. 3 and 4.

FIG. 5 is a schematic view of an airflow driver in a warmer of one embodiment of the present invention.

FIG. 6 is a schematic view of a warmer of one embodiment of the present invention.

FIG. 7 is a sectional view of a warmer of one embodiment of the present invention.

Fig. 8 is an exploded view of a warmer of one embodiment of the present invention.

FIG. 9 is a sectional view of the warmer of one embodiment of the present invention with the airflow driver in a second state.

FIG. 10 is a cross-sectional view of the warmer of one embodiment of the present invention with the airflow driver in the first state.

Reference numerals:

the heating device (100) is provided with a heating device,

the shell 1, the first ventilation opening 101, the second ventilation opening 102, the diversion cavity 104, the rear shell 11, the front shell 12, the bottom plate 13, the top plate 14, the front side plate 121, the side plate 122, the rear side plate 111, the ribs 112, the mounting groove 106, the folded edge part 107, the diversion opening 108, the first side wall 181, the second side wall 182, the first baffle 183, the second baffle 184,

the heat exchanging elements 2, the guide grooves 201,

the air flow driving part 3, an inlet 301, an outlet 302, an air duct 31, a wind wheel 32, a guide plate 311 and a baffle 312.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Referring to fig. 1 to 10, a warmer 100 according to an embodiment of the present invention includes: a housing 1, a heat exchange member 2 and an air flow driving member 3. The air flow driving part 3 realizes air flow circulation, and heat exchange is carried out between the air flow and the heat exchange part 2, so that the indoor temperature is adjusted.

Specifically, a plurality of ventilation openings communicating the inner space and the outer space of the housing 1 are formed on the housing 1, the plurality of ventilation openings include a first ventilation opening 101 and a second ventilation opening 102, and a flow guide cavity 104 respectively communicating the first ventilation opening 101 and the second ventilation opening 102 is formed in the housing 1, so that the airflow can enter and exit the housing 1 through the first ventilation opening 101 and the second ventilation opening 102, and the flow can be guided through the flow guide cavity 104. For example, the airflow enters the housing 1 from the first ventilation opening 101, is guided by the guide cavity 104, and then is sent out from the second ventilation opening 102; for another example, the airflow enters the housing 1 from the second ventilation opening 102, passes through the diversion cavity 104, and then is sent out from the first ventilation opening 101.

At least a part of the heat exchanging element 2 is disposed in the diversion cavity 104 and between the first ventilation opening 101 and the second ventilation opening 102, and when the airflow circulates between the first ventilation opening 101 and the second ventilation opening 102, the heat exchanging element 2 can exchange heat, for example, the heat exchanging element 2 can cool or heat the airflow. An air flow driver 3 is rotatably connected to the housing 1 between a first state and a second state, the air flow driver 3 having an inlet 301 and an outlet 302, the air flow driver 3 being capable of driving an air flow from the inlet 301 to the outlet 302.

In the first state, the inlet 301 is opposite to the first ventilation opening 101 and the outlet 302 is opposite to the second ventilation opening 102, that is, the airflow driving member 3 can draw air from the first ventilation opening 101, and the airflow is sent out from the second ventilation opening 102 under the driving action of the airflow driving member 3; in the second state, the inlet 301 is opposite to the second ventilation opening 102 and the outlet 302 is opposite to the first ventilation opening 101, that is, the airflow driving member 3 can draw air from the second ventilation opening 102, and the airflow is sent out from the first ventilation opening 101 under the driving action of the airflow driving member 3.

Therefore, the direction of the air flow can be changed by rotating the air flow driving member 3, so that the air supply direction of the warmer 100 can be adjusted.

According to the warmer 100 of the embodiment of the present invention, the airflow driver 3 can be rotated to achieve adjustment in different states, so that the inlet 301 and the outlet 302 of the airflow driver 3 correspond to different air vents respectively, and the air supply direction of the warmer 100 is adjusted by the rotation of the airflow driver 3. Thereby need not to adopt two-way fan, reduce cost effectively.

Referring to fig. 9 and 10, in some embodiments, airflow driver 3 includes: an air duct 31 and an air wheel 32, wherein the air duct 31 is arranged in the diversion cavity 104, and an inlet 301 and an outlet 302 are formed on the air duct 31. The wind rotor 32 is arranged within the wind tunnel 31 and drives the air flow from the inlet 301 to the outlet 302, wherein the wind tunnel 31 is rotatably connected to the housing 1. The inlet 301 and outlet 302 and position of the airflow driver 3 can be changed by the rotation of the air duct 31, so as to change the air supply direction.

In addition, the airflow driving member 3 of the present invention may have other forms, for example, a portion of the air duct 31 may be rotatably disposed to change the direction of the air entering and exiting. For another example, a centrifugal rotor 32 may be provided, and the wind direction may be changed by rotating the axis of the rotor 32.

Preferably, the wind wheel 32 in the present invention is a cross flow wind wheel 32. That is, the wind wheel 32 of the present invention may be cylindrical, and the blades are elongated along the axis of the wind wheel 32. Of course, the wind turbine 32 of the present invention may be other types of wind turbines 32.

Wherein, the wind tunnel 31 may include a baffle 311 and a baffle 312, and at least a portion of the wind wheel 32 is disposed between the baffle 311 and the baffle 312.

Of course, the airflow driving member 3 of the present invention may be in other forms, for example, the airflow driving member 3 of the related art.

Referring to fig. 9 and 10, in some embodiments, the flow guide cavity 104 includes a flow guide opening 108, and the air flow may pass through the flow guide opening 108. The first end of the diversion opening 108 faces the airflow driving member 3 and the second end extends towards the second ventilation opening 102. The airflow can be driven by the airflow driving member 3 to pass through the diversion opening 108 and be sent out from the second air opening, or the airflow can be pumped by the airflow driving member 3 from the diversion opening 108, and the airflow can be pumped into the diversion cavity 104 from the second air opening 102 and then sent out from the first air opening 101 after passing through the diversion opening 108 and the airflow driving member 3. Of course, the air flow in the present invention may also be circulated in other manners, for example, the air flow does not pass through the diversion opening 108.

Referring to fig. 9 and 10, flow guide opening 108 has first and

second side walls

181 and 182 parallel to the axis of rotor 32, first side wall 181 is a circular arc plate centered on the axis of rotor 32, and the distance between the inner side surface of first side wall 181 and the axis of rotor 32 is greater than the distance between the edge of outlet 302 and the axis of rotor 32 by 0 mm to 10 mm. The first side wall 181 and the second side wall 182 can define the direction of the airflow, and during the rotation of the cross-flow wind wheel 32, since the inner side surface of the first side wall 181 is spaced from the edge of the outlet 302, and it is ensured that the airflow driving member 3 can be rotated along the first side wall 181 within a reasonable interval range, the smooth rotation of the airflow driving member 3 is ensured, and the problem of air leakage can be effectively controlled.

Referring to fig. 9 and 10, in some embodiments, a first baffle 183 extending away from the airflow driver 3 is connected to an edge of the first side wall 181 at the first end of the diversion port 108; at a first end of the diversion opening 108, the edge of the second side wall 182 is provided with a second baffle 184 extending away from the airflow driver 3. The housing 1 is provided with a plurality of first ventilation openings 101 corresponding to the first baffle 183 and the second baffle 184, the first baffle 183 and the second baffle 184 extend to the top of the corresponding first ventilation openings 101, and the upper edge of the outlet 302 of the air duct 31 is flush with the first baffle 183 when the airflow driving member 3 is located in the first state. Therefore, the first baffle 183 and the second baffle 184 can guide the air flow to and from the ventilation opening.

Specifically, referring to fig. 9 and 10, the diversion opening 108 extends in the up-down direction, and the diversion opening 108 has a front side wall (similar to the aforementioned first side wall 181) and a rear side wall (similar to the aforementioned second side wall 182), wherein the lower edge of the front side wall is provided with a first baffle 183, and the first baffle 183 is connected to and extends forward from the lower edge of the front side wall; the lower edge of the rear side wall is connected with a second baffle 184, the second baffle 184 is connected with the lower edge of the rear side wall and extends backwards, the front side wall and the rear side wall of the shell 1 are both provided with the first ventilation opening 101, wherein the front edge of the first baffle 183 extends to the position above the first ventilation opening 101 on the front side wall of the shell 1; the rear edge of the second baffle 184 extends above the first vent 101 in the rear side wall of the housing 1.

In fig. 9, the airflow driving member 3 is in the second state, the inlet 301 of the airflow driving member 3 is opposite to the diversion port 108, the airflow can enter the housing 1 from the second ventilation air, and after passing through the diversion port 108, the airflow is sent into the airflow driving member 3, and then sent out from the outlet 302 of the airflow driving member 3, as can be seen from fig. 9, the upper edge of the outlet 302 of the airflow driving member 3 corresponds to the lower edge of the front side wall of the diversion port 108, and a gap exists.

In fig. 10, the airflow driving member 3 is in the first state, the inlet 301 of the airflow driving member 3 is opposite to the first ventilation opening 101, and the outlet 302 of the airflow driving member 3 passes through the diversion opening 108 towards the second ventilation opening 102, and under the driving action of the airflow driving member 3, the airflow enters the housing 1 from the first ventilation opening 101, passes through the diversion opening 108 and is sent to the second ventilation opening 102 under the driving action of the airflow driving member 3.

In addition, in the process of switching from fig. 9 to fig. 10, the whole air duct 31 of the airflow driving member 3 rotates, and the front side wall is in the shape of an arc, so that the air duct 31 is abducted to rotate, and the sealing effect can be effectively ensured.

In the present invention, when the airflow driver 3 is in the second state, the outlet 302 of the air duct 31 may be opposite to the diversion port 108.

In addition, when the airflow driving member 3 is in the second state, it may be further configured to: the outlet 302 of the wind tunnel 31 extends into the diversion opening 108, the outlet 302 of the wind tunnel 31 passes through the diversion opening 108, and the outlet 302 of the wind tunnel 31 is partially positioned in the diversion opening 108 and partially passes through the diversion opening 108.

For example, in fig. 10, the airflow driver 3 is shown in the second state, and the outlet 302 of the air duct 31 passes through the diversion opening 108.

Referring to fig. 9 and 10, a portion of the baffle chamber 104 opposite to the heat exchange member 2 is configured in a shape that is tapered or divergent in a direction from the first ventilation openings 101 to the second ventilation openings 102. The heat exchange efficiency of the air flow and the heat exchange member 2 can be improved.

Preferably, a portion of the baffle chamber 104 opposite to the heat exchange member 2 is configured in a shape tapered in a direction from the first ventilation opening 101 to the second ventilation opening 102. When the air flow is sent from the first ventilation opening 101 to the second ventilation opening 102, the air flow can be sent more intensively, and when the air flow is sent from the second ventilation opening 102 to the first ventilation opening 101, the heat exchange efficiency and effect of the air flow and the heat exchange member 2 can be prolonged.

Referring to fig. 1 to 10, in some embodiments, the first ventilation opening 101 is disposed at a lower portion of the housing 1, and the second ventilation opening 102 is disposed at an upper portion of the housing 1. Downward air supply and upward air supply can be realized by changing the angle of the pneumatic driving piece.

Referring to fig. 1 to 10, in some embodiments, the first ventilation opening 101 includes at least two openings disposed on the front and rear sides of the housing 1, and the second ventilation opening 102 includes at least one opening disposed on the top wall of the housing 1.

Specifically, referring to fig. 10, the front side and the rear side of the lower portion of the housing 1 are both provided with first ventilation openings 101, and when the airflow driving member 3 is in the first state, the airflow can enter the housing 1 from the first ventilation openings 101 at the rear side of the lower portion of the housing 1 and is sent out from the second ventilation openings 102; in fig. 9, the airflow driving member 3 is in the second state, and the airflow can enter the housing 1 through the second ventilation opening 102 and be sent out through the first ventilation opening 101 located at the front side of the lower portion of the housing 1.

Further, the heat exchanging member 2 is disposed between the airflow driving member 3 and the second ventilation opening 102.

As shown in fig. 6 and 8, in some embodiments of the present invention, at least one of the first vent 101 and the second vent hole includes a plurality of micro holes arranged at intervals, and the pore diameter of the micro holes is in a range of 1 mm to 10 mm. The first and

second ventilation openings

101 and 102 may have a certain filtering effect, thereby ensuring the environmental safety and sanitation inside the housing 1. Moreover, when the airflow is sent out from the ventilation openings which are arranged in the micropores, the air supply intensity of the airflow can be weakened.

As in fig. 1, in some embodiments, the housing 1 comprises: the device comprises a rear shell 11, a front shell 12, a bottom plate 13 and a top plate 14, wherein the front shell 12 and the rear shell 11 are spliced in a front-back manner, a flow guide cavity 104 is formed between the front shell 12 and the rear shell 11, and openings are formed between the upper edge of the front shell 12 and the upper edge of the rear shell 11 and between the lower edge of the front shell 12 and the lower edge of the rear shell 11; the bottom plate 13 covers the bottom opening of the diversion cavity 104, and a first ventilation opening 101 is formed in the bottom plate 13; the top plate 14 covers the top opening of the diversion cavity 104, and the second ventilation opening 102 is formed on the top plate 14. The casing 1 has a simple structure, and can conveniently form a diversion air duct 31, so that the circulation efficiency of air flow is improved.

Further, as shown in fig. 1, the front shell 12 includes a front side plate 121, edges of left and right sides of the front side plate 121 are respectively provided with a side plate 122 extending backward, the rear shell 11 includes a rear side plate 111, edges of left and right sides of the rear side plate 111 are respectively provided with a rib 112 extending forward, and the corresponding rib 112 is connected with the side plate 122. The splicing of the front shell 12 and the rear shell 11 is convenient, wherein the front shell 12 and the rear shell 11 can be installed together by adopting the modes of screw connection, welding, buckle connection, bonding, clamp fastening and the like.

As shown in fig. 1, the side plate 122 is provided with a mounting groove 106 having an open rear edge, the upper and lower sides of the corresponding end portion of the heat exchange member 2 are respectively provided with guide grooves 201 extending in the front-rear direction, the end portion of the heat exchange member 2 is inserted into the corresponding mounting groove 106, and the upper and lower edges of the mounting groove 106 are respectively inserted into the corresponding guide grooves 201. That is to say, the end of the heat exchanger 2 and the side wall of the housing 1 are fastened to each other, and the stability of the heat exchanger 2 can be further ensured by the two opposite fastening methods.

Further, as shown in fig. 1, the front edge of the mounting groove 106 is provided with a folded portion 107, and the front side of the end portion of the heat exchanger 2 abuts against the corresponding folded portion 107. The arranged edge folding part 107 can effectively facilitate the installation of the heat exchange piece 2, improve the performance and stability of the whole machine and avoid the problem that the heat exchange piece 2 is difficult to assemble to a preset position.

In some embodiments, the first and

second vents

101 and 102 are each in the shape of a grid-type aperture. Thereby improving the overall performance of the warmer 100.

The invention provides a warmer 100, which can switch the air supply direction of the warmer 100 by changing the air supply direction of an airflow driving piece 3.

In the heater 100, a fan assembly (an embodiment of the airflow driving member 3) is disposed below a heating element (an embodiment of the heat exchanging member 2), and a first ventilation opening 101 is formed below a front case 12 of the heater 100. When the airflow driving part 3 is in the second state, the airflow driving part 3 drives the heat of the heating body to be sent out from the lower part of the front shell 12, so that the ground can be effectively dried and feet can be warmed; when the airflow driving member 3 is in the first state, cold air enters from the lower part of the shell 1 and is emitted from an air outlet at the top of the machine to perform natural convection heat dissipation.

The warmer 100 includes a front case 12, a rear case 11, a third ventilation opening, a first ventilation opening 101, a second ventilation opening 102, a heat exchange member 2, and an airflow driving member 3. A third vent is arranged below the front shell 12, a first vent 101 is arranged at the bottom of the warmer 100, and a second vent 102 is arranged at the top of the warmer. Preceding shell 12 and backshell 11 assembly form hollow water conservancy diversion chamber 104, water conservancy diversion chamber 104 is inside to be established and to replace heat 2 and air current driving piece 3, air current driving piece 3 is located the top of the first vent 101 of room heater 100, heat exchange 2 is located the top of air current driving piece 3.

Further, the front case 12 is formed in a shape in which the middle portion in the left-right direction is forward convex, and the rear case 11 is formed in a shape in which the middle portion in the left-right direction is backward convex.

Preferably, the top plate 14 and the bottom plate 13 are formed with vents.

The invention provides a warmer 100 with a rotatable airflow driving part 3, which can realize the switching of blowing directions only by rotating a fan component without a bidirectional fan.

According to the invention, the bottom and the top of a shell 1 of the heater 100 are respectively provided with a vent, the switching of an air inlet and an air outlet is realized by rotating a fan assembly, as shown in fig. 3, when an air outlet of an air duct 31 is in a horizontal position, an upper vent is an air inlet, a lower vent is an air outlet, and the heater 100 blows air downwards to dry the ground; as shown in fig. 4, when the air outlet of the air duct 31 rotates to the vertical position, the lower vent is the air inlet, the upper vent is the air outlet, and the heater 100 blows air upwards to accelerate the thermal convection of the air.

The warmer 100 of the present invention comprises a front case 12, a rear case 11, a plurality of vents, a heat exchange member 2, and an airflow driving member 3 (e.g., a fan assembly).

A first vent 101 is provided below the front housing 12, a vent is provided at the bottom of the warmer 100, and a vent is provided at the top. Front shell 12 and rear shell 11 assemble and form hollow water conservancy diversion chamber 104, and water conservancy diversion chamber 104 is inside to be equipped with replacement heat piece 2 and air current driving piece 3, and air current driving piece 3 is located the top of room heater 100 bottom vent, and heat piece 2 is located the top of air current driving piece 3.

As shown in fig. 2 to 5, the airflow driving member 3 is composed of a motor, a wind wheel 32, and an air duct 31. The air duct 31 includes an inlet 301 and an outlet 302, and the entire airflow driving member 3 can rotate around the axis of the wind wheel 32, and the rotation angle range is preferably 0-90 degrees.

When the outlet 302 of the air duct 31 is in a horizontal position, the wind wheel 32 blows out heat generated by the heat exchange element 2 from the outlet 302, and finally blows out the heat from the first ventilation opening 101 on the front wall of the heater 100, so that a downward blowing function is realized; the wind direction is schematically shown by arrow a in fig. 3.

When the outlet 302 of the air duct 31 rotates to the vertical position, the wind wheel 32 blows out the heat generated by the heat exchange element 2 from the outlet 302 of the air duct 31, and finally blows out from the second air opening 102 at the top of the heater 100, so as to realize the upward blowing function; the wind direction is schematically shown by arrow B in fig. 4.

When the fan is not started, the cold air mainly enters from the first ventilation opening 101 (or the bottom ventilation opening), passes through the heat exchange member 2, and is emitted from the second ventilation opening 102, and the natural convection state is realized.

The invention provides a warmer 100 with a rotatable airflow driving part 3, which realizes downward or upward blowing by rotating the position of the whole airflow driving part 3; the invention is provided with ventilation openings at the lower part, the bottom and the top of the warmer 100, and when the air outlet of the air duct 31 is horizontal, air is blown downwards; when the air outlet of the air duct 31 is vertical, air is blown upwards; when the blower is not activated, the heater 100 may also dissipate heat by natural convection. In the heater 100, the air is blown downwards to dry the ground for the user to warm the feet; the air is blown upwards to accelerate the convection of air and improve the heat dissipation efficiency; meanwhile, heat can be dissipated through natural convection; the invention can adopt the through-flow air duct 31, has low noise compared with the centrifugal air duct 31, and improves the user experience. The cross-flow duct 31 is preferably used in the present invention, and the centrifugal duct 31 may be used.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A warmer, comprising:

the air conditioner comprises a shell, wherein a plurality of ventilation openings which are communicated with the inner space and the outer space of the shell are formed in the shell, the plurality of ventilation openings comprise a first ventilation opening and a second ventilation opening, and a flow guide cavity which is respectively communicated with the first ventilation opening and the second ventilation opening is formed in the shell;

at least one part of the heat exchange piece is arranged in the flow guide cavity, and the heat exchange piece is arranged between the first ventilation opening and the second ventilation opening;

the air flow driving piece is rotatably connected with the shell between a first state and a second state and is provided with an inlet and an outlet, the inlet is opposite to the first ventilation opening and the outlet is opposite to the second ventilation opening in the first state, the inlet is opposite to the second ventilation opening and the outlet is opposite to the first ventilation opening in the second state, the air flow driving piece comprises an air channel and an air wheel, the air channel is arranged in the flow guide cavity, and the inlet and the outlet are formed on the air channel; the wind wheel is arranged in the air duct and drives airflow to flow from the inlet to the outlet, wherein the air duct is rotatably connected with the shell.

2. The warmer of claim 1, wherein the diversion cavity comprises a diversion opening, a first end of the diversion opening is opposite to the airflow driving piece, a second end of the diversion opening extends towards the second ventilation opening, the diversion opening is provided with a first side wall and a second side wall which are parallel to the axis of the wind wheel, the first side wall is a circular arc-shaped plate which takes the axis of the wind wheel as the center, and the distance between the inner side surface of the first side wall and the axis of the wind wheel is larger than the distance between the edge of the outlet and the axis of the wind wheel by 0 mm to 10 mm.

3. The heater according to claim 2, wherein a first baffle extending in a direction away from the airflow driving member is connected to an edge of the first sidewall at the first end of the diversion opening, a second baffle extending in a direction away from the airflow driving member is provided at an edge of the second sidewall at the first end of the diversion opening, the housing is provided with a plurality of first vents respectively corresponding to the first baffle and the second baffle, the first baffle and the second baffle respectively extend above the corresponding first vents, and the airflow driving member is located at the first state, and an upper edge of the outlet of the air duct is flush with the first baffle.

4. The warmer of claim 2, wherein when the airflow actuating member is in the second state, the outlet of the air duct is opposite to the diversion opening, extends into the diversion opening, or passes through the diversion opening upward.

5. The warmer according to any one of claims 1 to 4, wherein a portion of the baffle chamber opposite to the heat exchanging member is configured in a shape that is tapered or divergent in a direction from the first ventilation opening to the second ventilation opening.

6. The warmer according to any one of claims 1 to 4, wherein the first ventilation opening is provided at a lower portion of the housing, and the second ventilation opening is provided at an upper portion of the housing.

7. The warmer of claim 6, wherein said first vent includes at least two openings disposed on the front and rear sides of said housing, and said second vent includes at least one opening disposed on the top wall of said housing.

8. The warmer of any one of claims 1-4, wherein at least one of the first vent and the second vent includes a plurality of spaced apart pores having a pore size in the range of 1 mm to 10 mm.

9. The warmer of any one of claims 1-4, wherein the housing includes:

a rear housing;

the front shell and the rear shell are spliced front and back, the diversion cavity is formed between the front shell and the rear shell, and openings are formed between the upper edge of the front shell and the upper edge of the rear shell and between the lower edge of the front shell and the lower edge of the rear shell;

the bottom plate covers the bottom opening of the diversion cavity; and

the top plate covers the top opening of the diversion cavity.