Warm air device

Abstract

The utility model provides heating equipment, and belongs to the technical field of household appliances. An air fan assembly in the warm air equipment comprises a first fan and a second fan, and the air outlet direction of the first fan is opposite to the air outlet direction of the second fan. The air duct assembly comprises a conversion air cavity and an air outlet assembly; an air outlet of the first fan is communicated with a first inlet of the conversion air cavity, and an air outlet of the second fan is communicated with a second inlet of the conversion air cavity; the air outlet assembly comprises a heating air outlet and an exhaust outlet; the heating air outlet is communicated with a first outlet of the conversion air cavity, and the exhaust outlet is communicated with a second outlet of the conversion air cavity; the air door assembly comprises a first air door and a second air door, the first air door is movably arranged at the first outlet, and the second air door is movably arranged at the second outlet. According to the air heating equipment, large-air-volume heating or large-air-volume ventilation of the air heating equipment can be achieved; and the area covered by heating outlet air is larger, so that the heating comfort of the heating equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, especially relates to a warm air equipment. BACKGROUND

[0002] A bath heater is a kind of heating equipment suitable for bathroom use, which can be generally divided into radiation heating type or air heating type. Among them, the air heating type bath heater is popular due to its high safety factor and good heating effect.

[0003] However, the bath heater provided in the related art generally has a small air outlet or a narrow air outlet area, and the area covered by the heating air flow is small, so it cannot heat a large area, which makes the overall space heating comfort poor. SUMMARY

[0004] The utility model provides a kind of warm air equipment, can solve the problem that bath heater exists small air outlet or narrow air outlet area, and the area covered by the heating air flow is small, so it cannot heat a large area, which makes the overall space heating comfort poor.

[0005] The technical solution is as follows:

[0006] A warm air equipment, the warm air equipment includes: fan assembly, air duct assembly and air door assembly;

[0007] The fan assembly includes a first fan and a second fan, and the air outlet direction of the first fan and the air outlet direction of the second fan are opposite.

[0008] The air duct assembly includes a conversion air chamber and an air outlet assembly.

[0009] The air outlet of the first fan is in communication with the first inlet of the conversion air chamber, and the air outlet of the second fan is in communication with the second inlet of the conversion air chamber.

[0010] The air outlet assembly includes a rectangular heating air outlet and an exhaust air outlet; the heating air outlet is in communication with the first outlet of the conversion air chamber, and the exhaust air outlet is in communication with the second outlet of the conversion air chamber.

[0011] The air door assembly includes a first air door and a second air door, the first air door is movably arranged at the first outlet for controlling the opening or closing of the first outlet, and the second air door is movably arranged at the second outlet for controlling the opening or closing of the second outlet.

[0012] In some embodiments, the warm air equipment includes a heating mode and an exhaust mode.

[0013] In the heating mode, the first damper opens the first outlet, and the first damper is located in the conversion air cavity, separating the conversion air cavity into two air flow passages, the first inlet communicates with the first outlet through one air flow passage, and the second inlet communicates with the first outlet through the other air flow passage; at this time, the second damper closes the second outlet.

[0014] In the exhaust mode, the first damper closes the first outlet, and the second damper opens the second outlet.

[0015] In some embodiments, the air duct assembly further comprises a heating assembly, which is located between the conversion air cavity and the air outlet assembly, or is located in the air outlet assembly, and is used to heat the air flowing from the first outlet to the heating air outlet.

[0016] In some embodiments, the heating assembly comprises at least one of the following: a ceramic electric heating element, a silicon crystal electric heating element, a carbon fiber heating element, and a resistance heating element.

[0017] In some embodiments, the heating air outlet comprises two semicircular air outlets and two linear air outlets, the two semicircular air outlets are respectively located at the two ends of the major axis, the two linear air outlets are respectively located at the two ends of the minor axis, and the distance between the two linear air outlets is the same as the diameter of the two semicircular air outlets.

[0018] In some embodiments, the first air outlet extension line of the first fan and the second air outlet extension line of the second fan intersect, and the intersection point is located in the conversion air cavity.

[0019] In some embodiments, at least one of the first air outlet extension line of the first fan and the second air outlet extension line of the second fan is arranged obliquely towards the second outlet.

[0020] In some embodiments, the heating air outlet device further comprises a housing assembly, and the fan assembly is located in the housing assembly.

[0021] The conversion air cavity is located in the housing assembly, the heating air outlet is located on the front side of the housing assembly, and the exhaust outlet is located on the other side of the housing assembly.

[0022] In some embodiments, the dimension of the heating air outlet along the major axis is L1, and the dimension of the side of the housing assembly along the major axis is L0, wherein 0.85≥L1 / L0≥0.35.

[0023] In some embodiments, the dimension of the heating air outlet along the minor axis is B1, and the dimension of the side of the housing assembly along the minor axis is B0, wherein 1≥B1 / B0≥0.75.

[0024] In some embodiments, the first outlet is located at a first side of the front side of the conversion air cavity facing the housing assembly, the first inlet is located at a second side of the conversion air cavity, the second inlet is located at a third side of the conversion air cavity, and the second side and the third side are opposite and connected to the first side, respectively.

[0025] In some embodiments, the second outlet is located at a fourth side of the conversion air cavity, and the fourth side is connected to the first side of the front side of the conversion air cavity facing the housing assembly.

[0026] In some embodiments, the housing assembly comprises a front panel and a rear shell, the front panel is located at the front side of the rear shell, and the front panel and the rear shell are spaced apart to form an air return channel.

[0027] The technical scheme provided by the utility model has at least the following beneficial effects:

[0028] The warm air equipment of the utility model, including fan assembly, air duct assembly and air door assembly, wherein the fan assembly includes first fan and second fan which are opposite in air outlet direction, which is conducive to ensuring that the rated air volume is large, the air duct assembly includes conversion air cavity, the conversion air cavity is communicated with the two fans through the first inlet and the second inlet respectively, the air outlet of the two fans can flow into the conversion air cavity respectively, the conversion air cavity is communicated with the heating air outlet and the exhaust outlet through the first outlet and the second outlet respectively, the conversion air cavity can guide the air outlet of the two fans to switch to the heating air outlet or the exhaust outlet through the first outlet respectively, the air door assembly includes first air door and second air door, the first air door is used for controlling the first outlet, the second air door is used for controlling the second outlet, so that the final flow direction of the airflow can be controlled by controlling the two air doors, realizing large air volume heating or large air volume ventilation of the warm air equipment, adopting the rectangular heating air outlet, the area covered by the heating air outlet is larger, so as to be conducive to improving the heating comfort of the warm air equipment. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0030] Figure 1 It is the structure schematic diagram of the warm air equipment provided by the utility model embodiment;

[0031] Figure 2 It is the structure sectional view of the warm air equipment provided by the utility model embodiment Figure 1 ;

[0032] Figure 3 is a structure section view of the heating equipment provided by the embodiment of the present application Figure 2 ;

[0033] Figure 4 is a structure schematic view of the conversion air cavity provided by the embodiment of the present application

[0034] Figure 5 is a structure exploded view of the heating equipment provided by the embodiment of the present application

[0035] Figure 6 is a structure schematic view of the heating air outlet and the front panel provided by the embodiment of the present application

[0036] Figure 7 is an effect diagram of the ratio of the size L1 of the heating air outlet to the size L0 of the shell assembly on the air flow rate provided by the embodiment of the present application

[0037] Figure 8 is an effect diagram of the ratio of the size B1 of the heating air outlet to the size B0 of the shell assembly on the air flow rate provided by the embodiment of the present application

[0038] The reference signs in the drawings are respectively represented as:

[0039] 1, fan assembly;

[0040] 11, first fan; 011, first air outlet extension line; 12, second fan; 012, second air outlet extension line;

[0041] 2, air duct assembly;

[0042] 21, conversion air cavity; 0211, first side; 0212, second side; 0213, third side; 0214, fourth side; 2101, first inlet; 2102, second inlet; 2103, first outlet; 2104, second outlet;

[0043] 22, air outlet assembly; 221, heating air outlet; 22101, long axis; 22102, short axis; 2211, semicircular air outlet; 2212, linear air outlet; 222, air exhaust outlet;

[0044] 3, damper assembly;

[0045] 31, first damper; 311, first movable partition; 312, second movable partition;

[0046] 32, second damper; 321, third movable partition; 322, fourth movable partition;

[0047] 4, heating assembly;

[0048] 5. Housing assembly;

[0049] 51. Front panel; 52. Rear shell; 53. Return air duct. Detailed Implementation

[0050] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0051] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] Unless otherwise defined, all technical terms used in the embodiments of this utility model have the same meaning as commonly understood by those skilled in the art.

[0053] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0054] Combination Figures 1 to 5 As shown, this embodiment provides a heating device, which includes: a fan assembly 1, an air duct assembly 2, and an air damper assembly 3.

[0055] The fan assembly 1 includes a first fan 11 and a second fan 12, with the air outlet directions of the first fan 11 and the second fan 12 opposite to each other. For example, the opposite air outlet directions of the first fan 11 and the second fan 12 can mean that the first fan 11 outlets air towards the location of the first fan 11, and the second fan 12 outlets air towards the location of the first fan 11. This includes, but is not limited to, the opposite of the first fan 11 and the second fan 12 being parallel and intersecting, the opposite of the first fan 11 and the second fan 12 being completely overlapping, the opposite of the first fan 11 and the second fan 12 being intersecting in the area between the two fans, etc.

[0056] The air duct assembly 2 comprises a conversion air cavity 21 and an air outlet assembly 22; the air outlet of the first air blower 11 is communicated with a first inlet 2101 of the conversion air cavity 21, and the air outlet of the second air blower 12 is communicated with a second inlet 2102 of the conversion air cavity 21.

[0057] The air outlet assembly 22 comprises a rectangular heating air outlet 221 and an exhaust air outlet 222; the heating air outlet 221 is communicated with a first outlet 2103 of the conversion air cavity 21, and the exhaust air outlet 222 is communicated with a second outlet 2104 of the conversion air cavity 21.

[0058] The air door assembly 3 comprises a first air door 31 and a second air door 32; the first air door 31 is movably arranged at the first outlet 2103 and is used for controlling the opening or closing of the first outlet 2103, and the second air door 32 is movably arranged at the second outlet 2104 and is used for controlling the opening or closing of the second outlet 2104.

[0059] The heating air outlet 221 of the heating air outlet assembly 22 is communicated with the first outlet 2103 of the conversion air cavity 21, and the exhaust air outlet 222 of the exhaust air outlet assembly 22 is communicated with the second outlet 2104 of the conversion air cavity 21. The conversion air cavity 21 can switch the air outlets of the two air blowers to be guided to the heating air outlet 221 or the exhaust air outlet 222 through the first outlet 2103. The air door assembly 3 comprises a first air door 31 and a second air door 32; the first air door 31 is used for controlling the first outlet 2103, and the second air door 32 is used for controlling the second outlet 2104, so that the final flow direction of the air flow can be controlled by controlling the two air doors, and the large air volume heating or the large air volume ventilation of the heating air outlet assembly can be realized.

[0060] In the embodiment, the heating air outlet 221 is in a rectangular shape, and the area covered by the heating air outlet is larger, thereby being beneficial to improving the heating comfort of the heating air outlet assembly.

[0061] The rectangular heating air outlet 221 is not limited to a geometric rectangle, but can be any shape with a size along a first direction being larger than a size along a second direction, and the first direction and the second direction are perpendicular. Therefore, the shape of the heating air outlet 221 includes but is not limited to a rectangle, an ellipse, a rhombus, a partial polygon, a relatively low trapezoid, a combination of various shapes, and the like. Exemplarily, the shape of the heating air outlet 221 is a racetrack shape, which can be a combination of a rectangle and two semicircles.

[0062] In some possible implementations, both the first fan 11 and the second fan 12 are centrifugal fans. The airflow enters from the axial direction, changes to the radial direction after passing through the impeller, and is blown outward along the tangential direction of the impeller.

[0063] Combination Figure 2 , 3 As shown, in some embodiments, the heating device includes a heating mode and an exhaust mode.

[0064] In heating mode, the first damper 31 opens the first outlet 2103, and the first damper 31 is located inside the conversion air chamber 21, dividing the conversion air chamber 21 into two airflow channels. The first inlet 2101 is connected to the first outlet 2103 through one airflow channel, and the second inlet 2102 is connected to the first outlet 2103 through the other airflow channel. At this time, the second damper 32 closes the second outlet 2104. In exhaust mode, the first damper 31 closes the first outlet 2103, and the second damper 32 opens the second outlet 2104.

[0065] In the heating mode of this embodiment, the first outlet 2103 of the switching air chamber 21 is open and the second outlet 2104 is closed. The air from the first fan 11 and the second fan 12 flows through the switching air chamber 21 to the heating air outlet 221. The heating air outlet 221 has a large air volume, which helps to improve the air volume and heating range of the heating air. At the same time, the switching air chamber 21 is divided into two airflow channels inside by the first damper 31. The two fans are connected to the first outlet 2103 through independent airflow channels. The airflow of the two fans will not mix in the switching air chamber 21, thus avoiding mutual interference. Both airflows can maintain a large flow velocity to the heating air outlet 221, so that the heating air outlet 221 has a large warm air velocity, further improving the heating range.

[0066] In exhaust mode, the first outlet 2103 of the switching air chamber 21 is closed and the second outlet 2104 is open. The air from the first fan 11 and the second fan 12 flows through the switching air chamber 21 to the exhaust port 222. The exhaust port 222 has a large air volume, which helps to improve the exhaust effect of the heating air equipment and improve the indoor ventilation efficiency.

[0067] In some possible implementations, both the first damper 31 and the second damper 32 include multiple movable baffles. The multiple movable baffles in the first damper 31 and the second damper 32 can move synchronously or independently. Thus, while controlling the opening or closing function of the first outlet 2103 and the second outlet 2104, it is also possible to control the first outlet 2103 and the second outlet 2104 to have different opening degrees, such as the outlet opening degrees of 25%, 50% (half-open), 75%, and 100% (fully open).

[0068] CombinationFigure 3 As shown, in some embodiments, the air duct assembly 2 further comprises a heating assembly 4, which is located between the conversion air cavity 21 and the air outlet assembly 22, or located in the air outlet assembly 22, and is used to heat the air flowing from the first outlet 2103 to the heating air outlet 221.

[0069] Through the above arrangement, after the first outlet 2103 of the conversion air cavity 21 is opened, the air supplied by the first fan 11 and the second fan 12 will flow into the heating assembly before flowing out of the heating air outlet 221, and the heating assembly will heat the air, thereby realizing the heating air outlet.

[0070] Exemplarily, the heating assembly 4 is located between the conversion air cavity 21 and the air outlet assembly 22, and after the air flows out of the first outlet 2103, it flows through the heating assembly 4, increases in temperature, and then enters the air outlet assembly 22 and is blown out through the heating air outlet 221.

[0071] Exemplarily, the heating assembly 4 is located in the air outlet assembly 22, and after the air flows out of the first outlet 2103, it directly enters the air outlet assembly 22, then flows through the heating assembly 4, increases in temperature, and is blown out through the heating air outlet 221.

[0072] In some embodiments, the heating assembly 4 comprises at least one of the following: a ceramic electric heating element, a silicon crystal electric heating element, a carbon fiber heating element, and a resistance heating element. Exemplarily, the heating assembly 4 comprises a ceramic electric heating element, which has the advantages of small thermal resistance and high heat exchange efficiency.

[0073] In combination Figure 5 As shown, in some embodiments, the heating air outlet 221 comprises two semicircular air outlets 2211 and two linear air outlets 2212, the two semicircular air outlets 2211 are respectively located at the two ends of the major axis 22101, the two linear air outlets 2212 are respectively located at the two ends of the minor axis 22102, and the spacing between the two linear air outlets 2212 is the same as the diameter of the two semicircular air outlets 2211.

[0074] Through the above arrangement, the heating air outlet 221 has a runway annular air outlet with a large coverage area, and the warm air outlet area is larger, which is conducive to improving the heating comfort of the heating device.

[0075] Among them, the major axis 22101 and the minor axis 22102 can refer to the definition of the major axis and the minor axis in the ellipse. Among them, the major axis refers to the longest line segment obtained by connecting two points on the ellipse, that is, the line segment passing through the two foci and terminating on the ellipse, such as Figure 6 The major axis 22101 shown; the minor axis is opposite to the major axis of the ellipse, which refers to the line segment that is perpendicular to the major axis (or the line segment connecting the two foci) and terminates on the ellipse, such as Figure 6The short axis 22102 is shown. Exemplarily, the long axis 22101 is parallel to the length direction of the warm air device, and the short axis 22102 is parallel to the width direction of the warm air device, so that the heating air outlet 221 can cover the front of the warm air device as much as possible, thereby realizing a larger range of heating air.

[0076] In combination Figure 2 , 3 As shown in FIG. 1, in some embodiments, the first air outlet extension line 011 of the first fan 11 and the second air outlet extension line 012 of the second fan 12 intersect, and the intersection point is located in the conversion air cavity 21.

[0077] The first air outlet extension line 011 and the second air outlet extension line 012 can be used to represent the air outlet directions of the first fan 011 and the second fan 12, respectively.

[0078] Exemplarily, the first air outlet extension line 011 can be a straight line tangent to any side wall of the air outlet of the first fan 11, and the second air outlet extension line 012 can be a straight line tangent to any side wall of the air outlet of the second fan 12.

[0079] Another example is shown in FIG. 2, wherein the air outlet extension line can be a straight line passing through the center point of the air outlet of the fan and tangent to the fan wheel, which can be used to represent the flow path of the center of the airflow jet blown out of the air outlet of the fan in a natural state. Figure 3

[0080] Through the above arrangement, the first air outlet extension line 011 of the first fan 11 and the second air outlet extension line 012 of the second fan 12 intersect in the conversion air cavity 21, that is, the air outlet of the first fan 11 and the air outlet of the second fan 12 can intersect in the conversion air cavity 21. In the heating mode, the air outlets of the two fans flow in opposite directions, but due to the blocking of the first air door 31, they do not directly collide and mix, but are diverted at the same time near the intersection point to form two parallel and uniformly distributed laminar flows at the first outlet 2103, thereby maintaining a certain speed and flowing to the heating air outlet 221. It is beneficial to improve the air speed and air volume of the heating air outlet 221. In the exhaust mode, the air outlets of the two fans intersect in the conversion air cavity 21, and the air pressure in the conversion air cavity 21 increases, so that the airflow rushes to the exhaust outlet 222 with a large air volume, thereby increasing the ventilation efficiency of the heating device. In combination Figure 3

[0081] ​​To further improve the air outlet efficiency of the air outlet 222 in the exhaust mode, at least one of the first air outlet extension line 011 of the first fan 11 and the second air outlet extension line 012 of the second fan 12 is inclined towards the second outlet 2104, so that the air outlet direction of the fan is inclined towards the second outlet 2104. In the exhaust mode, the second outlet 2104 is opened, and the airflow in the conversion air chamber 21 can not only be driven by the air pressure in the conversion air chamber 21, but also by the kinetic energy of the airflow, so that the airflow flows out of the second outlet 2104 at a greater wind speed and volume, thereby improving the air outlet efficiency of the air outlet 222.

[0082] In combination with Figure 1 and Figure 5 shown, in some embodiments, the warm air equipment further comprises a housing assembly 5, and the fan assembly 1 is located in the housing assembly 5; the conversion air chamber 21 is located in the housing assembly 5, the heating air outlet 221 is located on the front side of the housing assembly 5, and the air outlet 222 is located on the other side of the housing assembly 5.

[0083] Through the above arrangement, the heating air outlet 221 is arranged on the front side of the housing assembly 5, and can deliver warm air to a larger indoor area in front of the housing assembly 5, thereby meeting the heating demand of a large area. The air outlet 222 is located on the other side of the housing assembly 5, which can be the rear side of the housing assembly 5, or a side between the front side and the rear side of the housing assembly 5. The air outlet 222 is located on the side other than the front side, which can facilitate the connection of the air exchange pipeline without interfering with the heating air outlet and adversely affecting the appearance of the heating equipment.

[0084] In some possible implementations, referring to Figure 3 or Figure 4 shown, the conversion air chamber 21 is located at the middle of the length direction of the housing assembly 5, and the first fan 11 and the second fan 12 are arranged on the two sides of the conversion air chamber 21, respectively.

[0085] In combination with Figure 6 shown, in some embodiments, the size of the heating air outlet 221 along the long axis 22101 is L1, and the size of the side of the housing assembly 5 along the long axis 22101 is L0, wherein 0.85≥L1 / L0≥0.35.

[0086] When the ratio of the size L1 of the heating air outlet 221 to the size L0 of the housing assembly 5 satisfies the above value range, the air outlet efficiency of the heating air outlet 221 is the highest, and the appearance effect of the heating air outlet 221 and the housing assembly 5 is better.

[0087] For example, the ratio of the size L1 of the heating air outlet 221 to the size L0 of the housing assembly 5 is, for example, 0.35, 0.4, 0.43, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, etc.

[0088] In some possible implementations, the size L1 of the heating air outlet 221 and the size L0 of the housing assembly 5 satisfy 0.8 ≥ L1 / L0 ≥ 0.5. For example, the ratio of the size L1 of the heating air outlet 221 to the size L0 of the housing assembly 5 is, for example, 0.5, 0.7, 0.75, 0.8, etc.

[0089] Table 1 below shows the measured values ​​of the length of the air outlet area and the air flow rate of the heating air outlet 221 and the housing assembly 5 under different ratios of the size L1 of the heating air outlet 221 and the size L0 of the housing assembly 5.

[0090] Table 1

[0091]

[0092]

[0093] Combining the above table and Figure 7 It can be seen that when the ratio of the size L1 of the heating air outlet 221 to the size L0 of the housing assembly 5 meets the range of 0.35-0.85, the length of the air outlet zone is greater than 430mm and the air flow rate is 146m³ / h. 3 Above / h. Based on this, when L1 / L0 meets the value range of 0.5-0.8, the outlet air length is above 460mm, and the outlet airflow is above 153m³ / h. 3 The optimal value range is above / h. Values ​​above or below this range will result in a decrease in the length of the air outlet or the air flow rate.

[0094] Combination Figure 6 As shown, in some embodiments, the heating air outlet 221 has a dimension of B1 along the short axis 22102, and the side of the housing assembly 5 has a dimension of B0 along the short axis 22102, where 1≥B1 / B0≥0.75.

[0095] When the size B1 of the heating air outlet 221 and the size B0 of the housing assembly 5 meet the above-mentioned value range, the air outlet efficiency of the heating air outlet 221 is the highest, and the appearance of the heating air outlet 221 and the housing assembly 5 is better.

[0096] For example, the ratio of the size B1 of the heating air outlet 221 to the size B0 of the housing assembly 5 is, for example, 0.75, 0.8, 0.85, 0.86, 0.9, 0.95, 1, etc.

[0097] In some possible implementations, the size B1 of the heating air outlet 221 and the size B0 of the housing assembly 5 satisfy 0.95≥B1 / B0≥0.85.

[0098] For example, the ratio of the size B1 of the heating air outlet 221 to the size B0 of the housing assembly 5 is, for example, 0.85, 0.9, 0.95, etc.

[0099] Table 2 below shows the measured values ​​of the air outlet width and air flow rate of the heating air outlet 221 and the housing assembly 5 under different ratio values ​​of the size B1 of the heating air outlet 221 and the size B0 of the housing assembly 5.

[0100] Table 2

[0101] B1 / B0 Air outlet zone width (mm) Air outflow rate (m 3 / h) 0.7 240 165 0.75 250 170 0.8 260 173 0.85 270 175 0.9 280 178 0.95 290 177 1 300 173

[0102] Combining the above table and Figure 8 It can be seen that when the ratio of dimension B1 of the heating air outlet 221 to dimension B0 of the housing assembly 5 meets the range of 0.75-0.1, the width of the air outlet area is greater than 250mm and the air flow rate is 170m³ / h. 3 Above / h. Based on this, when B1 / B0 meets the value range of 0.85-0.95, the outlet air length is above 270mm, and the outlet airflow is above 175m³ / h. 3 The optimal value range is above / h. Values ​​above or below this range will cause a decrease in the width of the air outlet area or the air flow rate.

[0103] Combination Figure 3 and Figure 4 As shown, in some embodiments, the first outlet 2103 is located on the first side 0211 of the conversion air cavity 21 facing the front side of the housing assembly 5, the first inlet 2101 is located on the second side 0212 of the conversion air cavity 21, and the second inlet 2102 is located on the third side 0213 of the conversion air cavity 21. The second side 0212 and the third side 0213 are positioned opposite each other and are respectively connected to the first side 0211.

[0104] By the above arrangement, the first fan 11 can be arranged at the second side 0212 of the conversion air cavity 21, and the second fan 12 can be arranged at the third side 0213 of the conversion air cavity 21. After the air outlets of the first fan 11 and the second fan 12 are communicated with the first inlet 2101 or the second inlet 2102 respectively, the first air outlet extension line 011 of the first fan 11 and the second air outlet extension line 012 of the second fan 12 intersect in the conversion air cavity 21, which enhances the effect of heating air outlet and ventilation air outlet. The first outlet 2103 is located at the first side 0211 of the conversion air cavity 21, and can be connected with the second side 0212 and the third side 0213 respectively. The air flow path of the fan to the heating air outlet 221 of the air outlet assembly 22 is shorter, and the structure of the air duct assembly 2 is more compact, which is beneficial to improve the structural compactness of the heating device and reduce the size of the heating device.

[0105] In addition, the path length of the first outlet 2103 to the first inlet 2101 and the second inlet 2102 is equal, and the speed, air volume and other performances of the two air flows of the two fans to the heating air outlet 221 are the same, which is beneficial to improve the uniformity of the heating air outlet 221.

[0106] In some possible implementations, with reference to Figure 4 It is shown that the conversion air cavity 21 is a cuboid, the area of the first side 0211 of the conversion air cavity 21 is greater than that of the second side 0212 and the third side 0213, and the area of the first outlet 2103 is greater than that of the first inlet 2101 and the second inlet 2102. Exemplarily, the area of the first side 0211 of the conversion air cavity 21 is equal to twice the area of the second side 0212 or twice the area of the second side 0212, and the area of the first outlet 2103 is equal to twice the area of the first inlet 2101 or twice the area of the second inlet 2102.

[0107] Optionally, the area of the second side 0212 and the area of the third side 0213 are the same, and the area of the first side 0211 is equal to the sum of the area of the second side 0212 and the area of the third side 0213; the area of the first outlet 2103 is equal to the sum of the area of the first inlet 2101 and the area of the second inlet 2102.

[0108] In combination with Figure 3 and Figure 4 It is shown that in some embodiments, the second outlet 2104 is located at the fourth side 0214 of the conversion air cavity 21, and the fourth side 0214 is connected with the first side 0211 of the front side of the shell assembly 5. Exemplarily, the exhaust outlet 222 is located on the side of the shell assembly 5 connected with the front side, so that the second outlet 2104 corresponds to the position of the exhaust outlet 222, and direct communication can be achieved.

[0109] Through the above arrangement, the second outlet 2104 is arranged at the fourth side 0214 of the conversion air cavity 21 and is connected with the first side 0211 of the conversion air cavity 21, and the second side 0212 and the third side 0213 corresponding to the first fan 11 and the second fan 12 are also connected with the first side 0211, the air flow path of the fan to the air outlet 222 of the air outlet assembly 22 is shorter, and the structure of the air duct assembly 2 is more compact, which is beneficial to improve the structural compactness of the heating device and reduce the size of the heating device.

[0110] In other possible implementations, the fourth side 0214 is connected with the second side 0212 and the third side 0213 respectively, the path length of the second outlet 2104 to the first inlet 2101 and the second inlet 2102 is equal, and the speed, air volume and other performances of the two air flows of the two fans to the air outlet 222 are the same, which is beneficial to reduce the disturbance at the air outlet 222 and improve the air outlet efficiency of the air outlet 222.

[0111] In combination Figure 2 As shown in some embodiments, the first damper 31 includes a first movable baffle 311 and a second movable baffle 312, the first movable baffle 311 and the second movable baffle 312 are coaxially arranged at the first outlet 2103, the rotation shafts of the first movable baffle 311 and the second movable baffle 312 are arranged at the middle of the first outlet 2103, and the sum of the areas of the first movable baffle 311 and the second movable baffle 312 is equal to the area of the first outlet 2103.

[0112] Exemplarily, Figure 2 As shown in the open state of the first damper 31, the first movable baffle 311 and the second movable baffle 312 are both rotated downward into the inside of the conversion air cavity 21, and the conversion air cavity 21 is divided into left and right air flow passages from the middle. If it is needed to switch to the closed state of the first damper 31, the first movable baffle 311 and the second movable baffle 312 will be rotated upward respectively to close the first damper 31.

[0113] In combination Figure 3 , 4 As shown in some embodiments, the second damper 32 includes a third movable baffle 321 and a fourth movable baffle 322, the third movable baffle 321 and the fourth movable baffle 322 are arranged in a split manner at the second outlet 2104, the rotation shaft of the third movable baffle 321 is arranged at the left end of the second outlet 2104, and the rotation shaft of the fourth movable baffle 322 is arranged at the right end of the second outlet 2104.

[0114] Exemplarily, Figure 3 , 4The second damper 32 is shown in an open state, in which the third movable baffle 321 and the fourth movable baffle 322 are both rotated towards the outside of the conversion air chamber 21 until the ends of the third movable baffle 321 and the fourth movable baffle 322 abut against the shell assembly 5, so that the third movable baffle 321 and the fourth movable baffle 322 enclose a sealed air duct between the second outlet 2104 and the air outlet 222, and air can flow from the second outlet 2104 to the air outlet 222. If it is necessary to switch to the closed state of the second damper 32, the third movable baffle 321 and the fourth movable baffle 322 will be rotated towards the conversion air chamber 21 respectively until the third movable baffle 321 and the fourth movable baffle 322 respectively adhere to the fourth side 0214 of the conversion air chamber 21 to block the second outlet 2104. Optionally, the sealed air duct enclosed by the third movable baffle 321 and the fourth movable baffle 322 is trapezoidal, in which the upper base of the trapezoid corresponds to the air outlet 222, and the lower base of the trapezoid corresponds to the second outlet 2104, which can achieve the effect of beam current acceleration of the exhaust air flow. It can be explained that the sealed air duct between the second outlet 2104 and the air outlet 222 can also be independent, without the need for the third movable baffle 321 and the fourth movable baffle 322.

[0115] Another example, in order to improve the air outlet efficiency of the air outlet 222 in the exhaust mode, a fixed baffle is arranged in the conversion air chamber 21, which divides the conversion air chamber 21 into two independent air flow channels. In the heating mode, the two movable baffles of the first damper 31 can adhere to the two sides of the fixed baffle respectively, and the fixed baffle will not interfere with the heating mode. In the exhaust mode, the first damper 31 is closed, and the fixed baffle guides the two air flows of the first fan 11 and the second fan 12 to the second outlet 2104, which is beneficial to improve the air outlet efficiency of the air outlet 222. Alternatively, by analogy with the first damper 31, the second damper 32 is opened towards the inside of the conversion air chamber 21, and the open state of the second damper 32 can locally divide the conversion air chamber 21 into two air flow channels, and ensure that the second damper 32 blocks the first air outlet extension line 011 of the first fan 11 and the second air outlet extension line 012 of the second fan 12, and cooperates with the inclined arrangement of the first air outlet extension line 011 and the second air outlet extension line 012 to guide the air outlets of the two fans to the position of the second outlet 2104, i.e. the position of the air outlet 222.

[0116] In combination Figure 1 , 4 As shown in some embodiments, the shell assembly 5 includes a front panel 51 and a rear shell 52, the front panel 51 is located on the front side of the rear shell 52, and the front panel 51 and the rear shell 52 are spaced apart to form an air return channel 53.

[0117] With the above arrangement, the housing assembly 5 forms a receiving cavity through the front panel 51 and the rear shell 52. The fan assembly 1, the conversion air chamber 21, the damper assembly 3, etc., are all arranged in the receiving cavity. The front panel 51 and the rear shell 52 are arranged at intervals to form an annular return air channel 53. The heating air outlet 221 is located on the front panel 51. The heating air outlet 221 and the return air channel 53 together form a warm air circulation loop, further improving the indoor heating effect.

[0118] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0119] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0120] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0121] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of the present invention.

[0122] The above merely illustrates the embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A warm air device, characterized in that The warm air equipment comprises a fan assembly (1), an air duct assembly (2) and an air door assembly (3); The fan assembly (1) comprises a first fan (11) and a second fan (12), and the air outlet direction of the first fan (11) is opposite to the air outlet direction of the second fan (12); The air duct assembly (2) comprises a conversion air cavity (21) and an air outlet assembly (22); The air outlet of the first fan (11) is communicated with a first inlet (2101) of the conversion air cavity (21), and the air outlet of the second fan (12) is communicated with a second inlet (2102) of the conversion air cavity (21); The air outlet assembly (22) comprises a heating air outlet (221) and an exhaust air outlet (222), the size of the heating air outlet (221) along a first direction is greater than the size of the heating air outlet (221) along a second direction, and the first direction and the second direction are perpendicular; the heating air outlet (221) is communicated with a first outlet (2103) of the conversion air cavity (21), and the exhaust air outlet (222) is communicated with a second outlet (2104) of the conversion air cavity (21); The air door assembly (3) comprises a first air door (31) and a second air door (32), the first air door (31) is movably arranged in the first outlet (2103) for controlling the opening or closing of the first outlet (2103), and the second air door (32) is movably arranged in the second outlet (2104) for controlling the opening or closing of the second outlet (2104).

2. The heating apparatus according to claim 1, wherein The warm air equipment comprises a heating mode and an exhaust mode; In the heating mode, the first air door (31) opens the first outlet (2103), and the first air door (31) is located in the conversion air cavity (21) to divide the conversion air cavity (21) into two air flow channels, the first inlet (2101) is communicated with the first outlet (2103) through one air flow channel, and the second inlet (2102) is communicated with the first outlet (2103) through another air flow channel; at this time, the second air door (32) closes the second outlet (2104); In the exhaust mode, the first air door (31) closes the first outlet (2103), and the second air door (32) opens the second outlet (2104).

3. The heating apparatus according to claim 1, wherein The air duct assembly (2) further comprises a heating assembly (4) located between the conversion air cavity (21) and the air outlet assembly (22) or located in the air outlet assembly (22), and the heating assembly (4) is used for heating the air flowing from the first outlet (2103) to the heating air outlet (221).

4. The heating apparatus according to claim 3, wherein The heating assembly (4) comprises at least one of the following: a ceramic electric heating element, a silicon crystal electric heating element, a carbon fiber heating element and a resistance heating element.

5. The heating apparatus according to claim 1, wherein The heating air outlet (221) comprises two semicircular air outlets (2211) and two linear air outlets (2212), the two semicircular air outlets (2211) are respectively located at two ends of a long axis (22101), the two linear air outlets (2212) are respectively located at two ends of a short axis (22102), and a spacing between the two linear air outlets (2212) is the same as a diameter of the two semicircular air outlets (2211).

6. The heating apparatus according to claim 1, wherein The first air outlet extension line (011) of the first fan (11) and the second air outlet extension line (012) of the second fan (12) intersect, and an intersection point is located in the conversion air cavity (21).

7. The heating apparatus according to claim 1, wherein At least one of the first air outlet extension line (011) of the first fan (11) and the second air outlet extension line (012) of the second fan (12) is arranged obliquely towards the second outlet (2104).

8. The heating apparatus according to any one of claims 1 to 7, characterized by, The heating air equipment further comprises a shell assembly (5), and the fan assembly (1) is located in the shell assembly (5). The conversion air cavity (21) is located in the shell assembly (5), the heating air outlet (221) is located on a front side of the shell assembly (5), and the air exhaust outlet (222) is located on another side of the shell assembly (5).

9. The heating apparatus according to claim 8, wherein A size of the heating air outlet (221) along a long axis (22101) is L1, a size of a side of the shell assembly (5) along a direction of the long axis (22101) is L0, and 0.85≥L1 / L0≥0.

35.

10. The heating apparatus according to claim 8, wherein A size of the heating air outlet (221) along a short axis (22102) is B1, a size of a side of the shell assembly (5) along a direction of the short axis (22102) is B0, and 1≥B1 / B0≥0.

75.

11. The heating apparatus according to claim 8, wherein The first outlet (2103) is located on a first side (0211) of the conversion air cavity (21) towards a front side of the shell assembly (5), the first inlet (2101) is located on a second side (0212) of the conversion air cavity (21), the second inlet (2102) is located on a third side (0213) of the conversion air cavity (21), and the second side (0212) and the third side (0213) are opposite and connected to the first side (0211) respectively.

12. The heating apparatus according to claim 8, wherein The second outlet (2104) is located on a fourth side (0214) of the conversion air cavity (21), and the fourth side (0214) is connected to the first side (0211) of the conversion air cavity (21) towards the front side of the shell assembly (5).

13. The heating apparatus of claim 8, wherein The shell assembly (5) comprises a front panel (51) and a rear shell (52), the front panel (51) is located on a front side of the rear shell (52), and the front panel (51) and the rear shell (52) are spaced to form an air return channel (53).

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