Heating and ventilating device

Abstract

The utility model discloses a heating and ventilation device, and relates to the technical field of living electric appliances. The heating and ventilation device comprises a shell, a cross-flow fan and a swing piece. An air duct is formed in the shell, a panel of the shell is provided with a warm air port, the side wall of the shell is provided with a ventilation port, and the warm air port and the ventilation port are respectively communicated with the air duct; the cross-flow fan is installed in the air duct, and the length direction of an impeller of the cross-flow fan is parallel to the length direction of the warm air opening. The swing piece is located in the air channel and located on the downstream of the cross-flow fan, and the swing piece can move relative to the shell so as to seal the warm air opening or the ventilation opening. According to the heating ventilation device, the air outlet uniformity can be improved, the air outlet amount can be increased, and noise can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a heating and ventilation device. BACKGROUND

[0002] The heating and ventilation device is a device integrating heating and ventilation functions, which usually includes a heat exchanger, an air duct, a fan and the like. The fan works to form an air flow, and the air flow flows to a warm air outlet or a ventilation outlet through the air duct, so as to achieve the effect of heating or ventilation. Common heating and ventilation devices include a bath heater, an air conditioner and a combined heater.

[0003] Traditional heating and ventilation devices mostly use centrifugal fans to form working air flow. However, the air flow formed by the centrifugal fan has poor uniformity at the outlet section, and has the disadvantages of small air volume and large noise. CONTENT OF THE INVENTION

[0004] Therefore, the present application provides a heating and ventilation device capable of improving air outlet uniformity, increasing air volume and reducing noise.

[0005] The heating and ventilation device provided by the present application includes a shell, a cross-flow fan and a swing piece.

[0006] The shell has an air duct formed inside, a panel of the shell is provided with a warm air outlet, and a side wall of the shell is provided with a ventilation outlet, and the warm air outlet and the ventilation outlet are respectively communicated with the air duct.

[0007] The cross-flow fan is installed in the air duct, and the length direction of the impeller of the cross-flow fan is parallel to the length direction of the warm air outlet.

[0008] The swing piece is located in the air duct and downstream of the cross-flow fan, and the swing piece can move relative to the shell to close the warm air outlet or the ventilation outlet.

[0009] Optionally, the length direction of the warm air outlet and the outlet direction of the ventilation outlet have a non-zero included angle.

[0010] Optionally, the included angle between the length direction of the warm air outlet and the outlet direction of the ventilation outlet is 45°-90°.

[0011] Optionally, the panel of the shell is provided with an air inlet, the air inlet and the warm air outlet are arranged at intervals, and the length direction of the air inlet is parallel to the length direction of the warm air outlet.

[0012] Optionally, a length direction of the air inlet is parallel to a length direction of the panel, a length of the air inlet is less than a length of the panel, and a ratio of the length of the air inlet to the length of the panel is greater than a set value; and / or,

[0013] a length direction of the air outlet is parallel to a length direction of the panel, a length of the air outlet is less than a length of the panel, and a ratio of the length of the air outlet to the length of the panel is greater than a set value;

[0014] wherein the set value is greater than 1 / 2 and less than 1.

[0015] Optionally, the set value is 3 / 4.

[0016] Optionally, the air duct comprises a supply air duct section, and a fresh air duct section and a warm air duct section connected to the supply air duct section respectively;

[0017] the fresh air duct section has the fresh air outlet away from a downstream end of the supply air duct section, and the warm air duct section has the warm air outlet away from the downstream end of the supply air duct section;

[0018] the swing piece is located between the fresh air duct section and the warm air duct section.

[0019] Optionally, the supply air duct section comprises a volute duct section and a transition duct section, a downstream end of the volute duct section is connected to an upstream end of the transition duct section, and a tangential direction of the downstream end of the volute duct section and an extension direction of the upstream end of the transition duct section have a first included angle, the first included angle is less than a set angle; and / or,

[0020] an upstream end of the fresh air duct section is connected to a downstream end of the supply air duct section, and an extension direction of the downstream end of the supply air duct section and an extension direction of the upstream end of the fresh air duct section have a second included angle, the second included angle is less than the set angle; and / or,

[0021] an extension direction of a downstream end of the fresh air duct section and an outlet direction of the fresh air outlet have a third included angle, the third included angle is less than the set angle;

[0022] wherein the set angle is less than or equal to 10°.

[0023] Optionally, at least one of the first included angle, the second included angle and the third included angle is 0°.

[0024] Optionally, the swing piece is configured to rotate between a first position and a second position, wherein when the swing piece is located at the first position, the fresh air outlet is closed; when the swing piece is located at the second position, the warm air outlet is closed.

[0025] The swing vane has a flow guiding feature for changing the flow direction of the airflow, so that when the swing vane is in the first position, the airflow is guided towards the air outlet, and / or, so that when the swing vane is in the second position, the airflow is guided towards the air inlet.

[0026] Optionally, a first surface of the swing vane has a first curved surface, the first surface being a surface of the swing vane facing the air outlet and away from the air inlet when the swing vane is in the first position;

[0027] The flow guiding feature comprises the first curved surface, wherein when the swing vane is in the first position, the air inlet is located on a convex side of the first curved surface.

[0028] Optionally, an inner wall surface of the air supply duct section has a concave surface, a tangential direction of a downstream end of the concave surface being towards the air outlet or the air inlet, the impeller being located on a concave side of the concave surface, wherein when the swing vane is in the first position, the concave surface faces the first curved surface; and / or,

[0029] An inner wall surface of the air heating duct section has a convex surface, a tangential direction of an upstream end of the convex surface being towards the impeller, a tangential direction of a downstream end of the convex surface being towards the air outlet, the swing vane being located on a convex side of the convex surface, wherein when the swing vane is in the first position, the first curved surface faces the convex surface.

[0030] Optionally, a second surface of the swing vane is a flat surface or has a second curved surface, the second surface being a surface of the swing vane facing the air inlet and away from the air outlet when the swing vane is in the first position;

[0031] The flow guiding feature comprises the flat surface or the second curved surface, wherein when the second surface has the second curved surface, and the swing vane is in the second position, the air outlet is located on a convex side of the second curved surface.

[0032] Optionally, a first flow guiding part is arranged on the second surface of the swing vane, the first flow guiding part extending in a direction from the impeller to the air inlet when the swing vane is in the second position, for guiding the airflow to the air inlet.

[0033] Optionally, a reinforcing part is arranged on the swing vane, the reinforcing part being used for improving the structural strength of the swing vane.

[0034] Optionally, the reinforcing part comprises:

[0035] a first reinforcing rib extending in a length extension direction of the swing vane, the length extension direction of the swing vane being parallel to a length direction of the air outlet; and / or,

[0036] a second reinforcing rib extending along the extension direction of the wide edge of the swing vane, the wide edge of the swing vane being adjacent to and intersecting the long edge.

[0037] Optionally, a second air guide part is arranged on the inner wall of the air supply air duct section, the second air guide part being located upstream of the swing vane and capable of cooperating with the swing vane when the swing vane is located at the first position to guide the airflow generated by the cross-flow fan to the warm air outlet.

[0038] Optionally, when the swing vane is located at the first position, the swing vane and the second air guide part have an avoiding gap therebetween for avoiding the rotation of the swing vane.

[0039] Optionally, the surface of the second air guide part away from the air exchange opening has a slope, the slope being inclined in such a way that the closer to the warm air outlet, the closer to the air exchange opening; or,

[0040] the third surface of the second air guide part away from the air exchange opening has a third arc surface, when the swing vane is located at the first position, the end of the swing vane close to the second air guide part is located on the convex side of the third arc surface.

[0041] Optionally, a third air guide part is arranged in the air supply air duct section, the third air guide part extending in the direction from the impeller to the air exchange opening for guiding the airflow to the air exchange opening.

[0042] Optionally, the number of the third air guide parts is plural, and the plural third air guide parts are arranged in the width direction of the air supply air duct section at intervals;

[0043] The air guide surface of each third air guide part extends towards the air exchange opening for guiding the airflow to the air exchange opening.

[0044] Optionally, the third air guide part is located downstream of the swing vane and is arranged closer to the air exchange opening than to the warm air outlet; and / or,

[0045] At least a part of the air guide surface of at least one third air guide part is inclined to the side where the air exchange opening is located more than to the extension direction of the air supply air duct section.

[0046] The warming and ventilation device provided in the embodiments of the present application has a wind channel formed in the inside of the shell, the wind channel has two air outlets, which are a warm air outlet located on the shell panel and a ventilation outlet located on the shell side wall; a cross-flow fan and a swing piece are installed in the wind channel, the cross-flow fan is used to generate airflow, and the swing piece is used to switch one of the warm air outlet and the ventilation outlet to be conducted, so that the effect of warming or ventilation is achieved. Compared with the warming and ventilation device in the related art, the warming and ventilation device provided in the embodiments of the present application adopts the cross-flow fan, so that the noise during the operation of the fan is small, the air volume is large, and the length direction of the impeller of the cross-flow fan is parallel to the length direction of the warm air outlet, so that the air outlet area and the air volume of the device are increased, and the air outlet uniformity is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0048] Figure 1 is a structural schematic diagram of a warming and ventilation device provided in the embodiments of the present application;

[0049] Figure 2 is an exploded view of the warming and ventilation device shown in Figure 1 ;

[0050] Figure 3 is a front view of the warming and ventilation device shown in Figure 1 ;

[0051] Figure 4 is a sectional view of the warming and ventilation device along the A-A line in Figure 1 when the swing piece is in the first position;

[0052] Figure 5 is a sectional view of the warming and ventilation device along the A-A line in Figure 1 when the swing piece is in the second position;

[0053] Figure 6 is a structural schematic diagram of the inside of a wind channel provided in the embodiments of the present application;

[0054] Figure 7 is an enlarged view of C in Figure 4 ;

[0055] Figure 8 is a structural schematic diagram of the inside of the wind channel when the swing piece is in the second position provided in the embodiments of the present application;

[0056] Figure 9is another internal structure schematic view of the air duct when the swing page piece is in the second position provided by the embodiment of the present application;

[0057] Figure 10 is a structure schematic view of a swing page piece provided by the embodiment of the present application;

[0058] Figure 11 is a sectional view along Figure 1 the line B-B in the figure;

[0059] Figure 12 is a sectional view along Figure 1 the line C-C in the figure of the heating and ventilation device provided by the embodiment of the present application;

[0060] Figure 13 is another sectional view along Figure 1 the line C-C in the figure of the heating and ventilation device provided by the embodiment of the present application.

[0061] Reference signs:

[0062] 1, housing; 11, air duct; 110, air supply duct section; 111, volute duct section; 1111, concave surface; 112, transition duct section; 113, ventilation duct section; 114, warm air duct section; 1141, convex surface; 12, panel; 13, side wall; 14, warm air outlet; 15, ventilation outlet; 16, air inlet; 17, second air guide part; 171, third surface; 18, gap; 19, third air guide part; 191, air guide surface;

[0063] 2, cross-flow fan; 21, impeller;

[0064] 3, swing page piece; 31, first surface; 311, first arc surface; 32, second surface; 321, second arc surface; 33, flow guide feature; 34, first air guide part; 35, reinforcing part; 351, first reinforcing rib; 352, second reinforcing rib; 36, long side; 37, wide side; 38, end part. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0066] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0067] The heating and ventilation device provided by the embodiment of the present application has the structure and appearance as shown in the figure.Figure 1 as shown. Figure 2 is Figure 1 An exploded view of the heating and ventilating device is shown in Fig. 1, which comprises a housing 1, a cross-flow fan 2 and a swing vane 3. Figure 2

[0068] As shown in Figs. 1 and 2, the interior of the housing 1 is formed with an air duct 11, in which the air flow follows a preset path after being formed. The housing 1 has a panel 12, on which a warm air outlet 14 is arranged. Generally, a heater (not shown in the figures) is arranged at the warm air outlet 14 or upstream thereof, which can be activated as required to heat the air flow passing therethrough. Thus, when the user has a heating requirement, the air flow can be heated by the heater and blown out from the warm air outlet 14 to achieve the heating effect. The housing 1 is provided with a ventilation port 15 on the side wall 13, which is used to exchange air between the indoor and outdoor. Figure 2 Figure 4 The cross-flow fan 2 is installed in the air duct 11, and the length direction of the impeller 21 of the cross-flow fan 2 is the same as the width direction of the air duct 11, so that the air flow generated when the cross-flow fan 2 operates flows along the extension direction of the air duct 11. The axial length of the impeller 21 of the cross-flow fan 2 is generally relatively long, so that the air volume is relatively large and the air supply distance is far, and the length direction of the impeller 21 of the cross-flow fan 2 is parallel to the length direction of the warm air outlet 14, so that the air outlet area of the warm air outlet 14 is large and the air outlet volume is also improved. Moreover, the cross-flow fan 2 has the characteristics of good air outlet uniformity, no turbulence and low noise, so that the air outlet volume of the heating and ventilating device can be greatly improved, the air outlet uniformity can be improved, and the operating noise can be reduced.

[0069] The swing vane 3 is located inside the air duct 11 and downstream of the cross-flow fan 2 and upstream of the warm air outlet 14 and the ventilation port 15. The swing vane 3 can rotate relative to the housing 1 to close the warm air outlet 14 or the ventilation port 15. The user can adjust the position of the swing vane 3 according to the actual requirement to achieve the effect of heating or ventilation. It is easy to understand that when the swing vane 3 closes the warm air outlet 14, the ventilation port 15 is open, at which time the device can achieve the ventilation function; when the swing vane 3 closes the ventilation port 15, the warm air outlet 14 is open, at which time the device can achieve the heating function.

[0070] The swing vane 3 is located inside the air duct 11 and downstream of the cross-flow fan 2 and upstream of the warm air outlet 14 and the ventilation port 15. The swing vane 3 can rotate relative to the housing 1 to close the warm air outlet 14 or the ventilation port 15. The user can adjust the position of the swing vane 3 according to the actual requirement to achieve the effect of heating or ventilation. It is easy to understand that when the swing vane 3 closes the warm air outlet 14, the ventilation port 15 is open, at which time the device can achieve the ventilation function; when the swing vane 3 closes the ventilation port 15, the warm air outlet 14 is open, at which time the device can achieve the heating function.

[0071] ​​It should be noted that, in the embodiments of the present application, the closing of the air outlet 14 (or the air vent 15) by the swing piece 3 means that the swing piece 3 blocks at least a part of the air outlet 14 (or the air vent 15), so that most of the airflow in the air duct 11 flows to the air vent 15 (or the air outlet 14). Those skilled in the art can understand that the larger the area of the air outlet 14 (or the air vent 15) blocked by the swing piece 3, the better the closing effect of the air outlet 14 (or the air vent 15).

[0072] Therefore, the heating and ventilating device provided by the embodiments of the present application has the functions of heating and ventilating by forming the air duct 11 in the inside of the shell 1, the air duct 11 having the air outlet 14 and the air vent 15, and installing the cross-flow fan 2 and the swing piece 3 in the air duct 11. Moreover, compared with the heating and ventilating device in the related art, the heating and ventilating device provided by the embodiments of the present application uses the cross-flow fan 2, so that the noise during the operation of the fan is small, the air volume is large, and the length direction of the impeller 21 of the cross-flow fan 2 is parallel to the length direction of the air outlet 14, so that the air outlet area and the air volume of the device are increased, and the air uniformity is further improved.

[0073] In some embodiments of the present application, as shown in Figure 3 , the length direction of the air outlet 14 and the outlet direction of the air vent 15 have a non-zero included angle. The non-zero included angle means that the length direction of the air outlet 14 and the outlet direction of the air vent 15 are neither the same nor opposite.

[0074] It should be noted that, in the embodiments of the present application, the outlet direction of the air vent 15 is the extension direction of the central axis of the air vent 15, and the central axis is perpendicular to the opening plane of the air vent 15. In Figure 3 , the length direction of the air outlet 14 and the outlet direction of the air vent 15 are shown by two dashed arrows respectively, the two directions have an included angle a, and a≠0. Therefore, the device can achieve high ventilation efficiency, while achieving a large and uniform heating range.

[0075] Optionally, the included angle a between the length direction of the air outlet 14 and the outlet direction of the air vent 15 is 45°-90°. For example, a can be 45°, 50°, 60°, 70°, 80° or 90°. Exemplarily, as shown in Figure 3 , in the heating and ventilating device provided by the embodiments of the present application, the included angle a is 90°, that is, the length direction of the air outlet 14 is perpendicular to the outlet direction of the air vent 15.

[0076] In some embodiments of the present application, continuing to refer to Figure 3The panel 12 is provided with an air inlet 16 for allowing air in the external environment to enter the inside of the air duct 11 and form an air flow under the action of the cross-flow fan 2. On the panel 12, the air inlet 16 and the warm air outlet 14 are arranged at intervals, and the length direction of the air inlet 16 is parallel to the length direction of the warm air outlet 14, so that the device has a high air intake during operation, thereby helping to improve the air output of the device.

[0077] The length direction of the air inlet 16 can also be parallel to the length direction of the panel 12, the length of the air inlet 16 is less than the length of the panel 12, and the ratio of the length of the air inlet 16 to the length of the panel 12 is greater than a set value, which is greater than 1 / 2 and less than 1. That is, the air inlet 16 occupies most of the area of the panel 12 in the length direction, so as to provide sufficient air intake.

[0078] The length direction of the warm air outlet 14 can also be parallel to the length direction of the panel 12, the length of the warm air outlet 14 is less than the length of the panel 12, and the ratio of the length of the warm air outlet 14 to the length of the panel 12 is greater than a set value, which is greater than 1 / 2 and less than 1. That is, the warm air outlet 14 occupies most of the area of the panel 12 in the length direction, so as to provide sufficient heat in the heating scenario to ensure heating efficiency and heating effect.

[0079] It should be noted that the specific lengths of the air inlet 16 and the warm air outlet 14 are designed according to actual use requirements or arrangement space, and the two can be the same or different. When the length of the air inlet 16 and the length of the warm air outlet 14 are the same, the visual effect is more uniform.

[0080] Optionally, on the basis of ensuring the structural strength of the panel 12, the set value can be 3 / 4, so as to increase the air intake and heating air output of the device as much as possible, and improve the use performance of the heating and ventilation device.

[0081] Optionally, as shown in Figure 3 , the air inlet 16 and the warm air outlet 14 can be provided or formed with a grille to prevent foreign matter in the external environment from entering the inside of the air duct 11 and causing the air duct 11 to be blocked, thereby reducing the air output performance of the device.

[0082] In some embodiments of the present application, as shown in Figure 4 , the air duct 11 includes a supply air duct section 110, a ventilation air duct section 113, and a warm air duct section 114, and the ventilation air duct section 113 and the warm air duct section 114 are respectively connected with the downstream end of the supply air duct section 110.

[0083] The air supply air duct section 110 is used to respectively deliver air flow to the ventilation air duct section 113 and the warm air duct section 114. Optionally, the air supply air duct section 110 can include a spiral air duct section 111 and a transition air duct section 112 connected in sequence.

[0084] The inner wall surface of the spiral air duct section 111 is curved, the cross-flow fan 2 is located in the spiral air duct section 111, the air inlet 16 is located at one end of the spiral air duct section 111, and the transition air duct section 112 is located at the other end of the spiral air duct section 111. By designing the air duct 11 in a spiral shape, the air flow can be effectively guided to smoothly flow out of the impeller 21, and the spiral shape can gradually accelerate the air flow and convert kinetic energy into static pressure energy, thereby improving the air pressure of the cross-flow fan 2, reducing energy loss and noise generation, and improving the performance of the fan.

[0085] The upstream end of the transition air duct section 112 is connected with the spiral air duct section 111, the downstream end of the transition air duct section 112 is connected with the ventilation air duct section 113 and the warm air duct section 114 respectively, and the swing vane 3 is arranged at the downstream end of the transition air duct section 112. It should be noted that in the embodiments of the present application, "upstream" and "downstream" are determined according to the flow direction of the air flow in the air duct 11. Generally, the air flow flows from upstream to downstream. Correspondingly, the "upstream end" refers to one end located upstream, and the "downstream end" refers to one end located downstream.

[0086] The ventilation air duct section 113 is located downstream of the transition air duct section 112 in the air supply air duct section 110, and the ventilation air duct section 113 has the ventilation port 15 at one end away from the transition air duct section 112; the warm air duct section 114 is also located downstream of the transition air duct section 112, and the warm air duct section 114 has the warm air port 14 at one end away from the transition air duct section 112. Specifically, as shown in Figure 4 The ventilation air duct section 113 is located downstream of the transition air duct section 112 in the air supply air duct section 110, and the ventilation air duct section 113 has the ventilation port 15 at one end away from the transition air duct section 112; the warm air duct section 114 is also located downstream of the transition air duct section 112, and the warm air duct section 114 has the warm air port 14 at one end away from the transition air duct section 112. Specifically, as shown in

[0087] In some embodiments of the present application, as Figure 6As shown, the tangential direction of the downstream end of the volute air duct section 111 and the extension direction of the upstream end of the transition air duct section 112 have a first included angle, and the first included angle is less than a set angle, and the set angle is less than or equal to 10°. Therefore, it can be ensured that the airflow flowing out of the volute air duct section 111 has a small wind loss, which helps to improve the air volume of the air outlet 15 or the warm air outlet 14.

[0088] In some embodiments of the present application, as shown in Figure 6 As shown, the extension direction of the downstream end of the air supply air duct section 110 (i.e. the downstream end of the transition air duct section 112) and the extension direction of the upstream end of the air exchange air duct section 113 have a second included angle, and the second included angle is less than a set angle, and the set angle is less than or equal to 10°. Therefore, it can be ensured that the airflow flowing from the transition air duct section 112 to the air exchange air duct section 113 has a small wind loss, which helps to improve the air volume of the air outlet 15.

[0089] Optionally, the transition air duct section 112 extends in a straight line direction, so the extension direction of the upstream end and the downstream end of the transition air duct section 112 are the same.

[0090] In some embodiments of the present application, as shown in Figure 6 As shown, the extension direction of the downstream end of the air exchange air duct section 113 and the outlet direction of the air outlet 15 have a third included angle, and the third included angle is less than a set angle, and the set angle is less than or equal to 10°. Therefore, it can be ensured that the airflow flowing from the air exchange air duct section 113 to the air outlet 15 has a small wind loss, which helps to improve the air volume of the air outlet 15.

[0091] The first included angle, the second included angle and the third included angle can be equal or not equal. Optionally, at least one of the first included angle, the second included angle and the third included angle is 0°, to ensure the smoothness of airflow circulation. In Figure 6 In the example shown, the tangential direction of the downstream end of the volute air duct section 111, the extension direction of the transition air duct section 112 and the outlet direction of the air outlet 15 are sequentially shown by three dashed arrows, and the directions of the three dashed arrows are the same, that is, the first included angle, the second included angle and the third included angle are all 0°.

[0092] In some embodiments of the present application, the swing page piece 3 is rotationally connected with the housing 1 and can rotate between a first position and a second position. Wherein, as shown in Figure 4 When the swing page piece 3 is located at the first position, the swing page piece 3 closes the air outlet 15, and the warm air outlet 14 is in conduction to the air outlet; as shown in Figure 5 When the swing page piece 3 is located at the second position, the swing page piece 3 closes the warm air outlet 14, and the air outlet 15 is in conduction to the air outlet.

[0093] To reduce airflow loss and improve airflow guidance, in some embodiments of this application, a flow guiding feature 33 can be provided on the flap 3. The flow guiding feature 33 can change the direction of airflow passing through the flap 3. When the flap 3 is in the first position, the flow guiding feature 33 can guide the airflow to the warm air inlet 14; and / or, when the flap 3 is in the second position, the flow guiding feature 33 can guide the airflow to the ventilation outlet 15.

[0094] Because the flap 3 has a certain thickness, when the flap 3 is in the first position, its free end is higher than the inner wall of the transition duct section 112, resulting in significant energy loss when the airflow passes through this position. In some embodiments of this application, this problem is solved by providing an air guide structure on the inner wall of the transition duct section 112 to reduce energy loss during airflow. Figure 7 yes Figure 4 Enlarged view of point C, as shown Figure 7 As shown, a second air guide 17 is provided on the inner wall of the transition air duct section 112 away from the warm air duct section 114. The second air guide 17 is located upstream of the swaying blade 3 and can cooperate with the swaying blade 3 located in the first position to guide the airflow to the warm air inlet 14.

[0095] In some embodiments, such as Figure 7 As shown, the first surface 31 of the louvered member 3 has a first arc surface 311, which serves to guide airflow toward the warm air inlet 14. Specifically, when the louvered member 3 is in the first position, the first surface 31 faces the warm air inlet 14 and is away from the air exchange inlet 15, and when the louvered member 3 is in the first position, the air exchange inlet 15 is located on the convex side of the first arc surface 311. The airflow guiding feature 33 includes the first arc surface 311.

[0096] like Figure 4 As shown, in some embodiments, the inner wall of the air supply duct section 110 has a concave surface 1111, with the downstream end of the concave surface 1111 tangentially facing the warm air inlet 14 or the ventilation inlet 15, and the impeller 21 located on the concave side of the concave surface 1111. Therefore, the airflow flowing through the concave surface 1111 is guided to the warm air inlet 14 or the ventilation inlet 15 with lower loss. Wherein, when the swivel member 3 is in the first position, see... Figure 4 The concave surface 1111 faces the side where the first arc surface 311 is located, so the airflow can flow smoothly from the impeller 21 to the swivel member 3, and then smoothly from the swivel member 3 to the warm air inlet 14. Optionally, the concave surface 1111 is located inside the volute air duct section 111.

[0097] See also Figure 4In some embodiments, the inner wall surface of the warm air duct section 114 has a convex surface 1141, the tangential direction of the upstream end of the convex surface 1141 is towards the impeller 21, and the tangential direction of the downstream end of the convex surface 1141 is towards the warm air outlet 14, so that the air flow passing through the convex surface 1141 is guided to the warm air outlet 14 with less loss. When the swing vane 3 is in the first position, the first arc surface 311 is towards the convex surface 1141, so that the first arc surface 311 and the convex surface 1141 have the same direction of guiding the air flow, so that the air flow flows more smoothly from the swing vane 3 to the warm air outlet 14.

[0098] Continuing to refer to Figure 7 , the height of the second air guiding part 17 is equal to or approximately equal to the height of the free end of the swing vane 3 in the first position. The third surface 171 of the second air guiding part 17 away from the air outlet 15 has an inclined surface, the inclined direction of which is closer to the warm air outlet 14 as it is closer to the air outlet 15; or, the third surface 171 of the second air guiding part 17 away from the air outlet 15 has a third arc surface, when the swing vane 3 is in the first position, the free end (i.e. the end 38) of the swing vane 3 close to the second air guiding part 17 is on the convex side of the third arc surface. Therefore, the second air guiding part 17 plays a guiding role through the inclined surface or the third arc surface to guide the air flow to the warm air outlet 14, reducing or even eliminating the energy loss of the air flow at the free end of the swing vane 3.

[0099] It should be noted that, in the embodiments of the present application, as shown in Figure 7 , when the swing vane 3 is in the first position, there is a clearance 18 between the free end of the swing vane 3 and the second air guiding part 17, which is used to avoid the rotation of the swing vane 3 to prevent affecting the switching function of the swing vane 3.

[0100] The above embodiments introduce the structure and shape characteristics of the first surface 31 of the swing vane 3, so as to guide the air flow to the warm air outlet 14 when the swing vane 3 is in the first position. Similarly, some air guiding characteristics can also be provided on the second surface 32 of the swing vane 3, so as to guide the air flow to the air outlet 15 when the swing vane 3 is in the second position. The second surface 32 is the surface of the swing vane 3 which is towards the air outlet 15 and away from the warm air outlet 14 when the swing vane 3 is in the first position.

[0101] In some cases, if the swing vane 3 is an arc-shaped plate with the first arc surface 311, as shown in Figure 5 , the arc-shaped second surface 32 will protrude into the transition air duct section 112 when the swing vane 3 is in the second position, which may increase the kinetic energy loss of the air flow during the flow process.

[0102] To solve this problem, in some embodiments of the present application, as shown in Figure 8As shown, the second surface 32 of the swing vane 3 is a flat surface, which reduces the occupation of the swing vane 3 to the space in the transition air duct section 112, and thus reduces the kinetic energy loss of the airflow, which helps to improve the air volume and air distance of the air outlet 15. The flow guiding feature 33 includes the flat surface.

[0103] Further, referring to Figure 8 When the swing vane 3 is located at the second position, the second surface 32 of the swing vane 3 is inclined relative to the air duct wall of the transition air duct section 112, and the inclination direction is closer to the opposite air duct wall as closer to the air outlet 15. Thus, the swing vane 3 as a whole is inclined towards the air outlet 15, which helps to guide the airflow to the air outlet 15.

[0104] In some embodiments of the present application, as shown in

[0105] In some embodiments of the present application, as shown in Figure 9 The second surface 32 of the swing vane 3 can further have a second curved surface 321, and the concave direction of the second curved surface 321 is opposite to the concave direction of the first curved surface 311. The second curved surface 321 can play a role of guiding the airflow to the air outlet 15. When the swing vane 3 is located at the second position, the air outlet 14 is located on the convex side of the second curved surface 321. The flow guiding feature 33 includes the second curved surface 321.

[0106] In order to further improve the flow guiding effect of the second surface 32 of the swing vane 3 when the swing vane 3 is located at the second position, in some embodiments of the present application, the second surface 32 of the swing vane 3 is provided with a first air guiding part 34, which extends along the direction from the impeller 21 to the air outlet 15 when the swing vane 3 is located at the second position, and is used to guide the airflow to the air outlet 15. The flow guiding feature 33 can further include the first air guiding part 34.

[0107] In one example, the first air guiding part 34 can be a strip-shaped rib protruding from the second surface 32, or an air guiding plate standing on the second surface 32, and the strip-shaped rib or the air guiding plate has an air guiding surface extending towards the air outlet 15.

[0108] In some embodiments of the present application, as shown in Figure 10 The second surface 32 of the swing vane 3 is provided with a reinforcing part 35, which is used to improve the structural strength of the swing vane 3. The second surface 32 is the surface of the swing vane 3 facing the air outlet 15 when the swing vane 3 is located at the first position, i.e., the second surface 32 is opposite to the first surface 31.

[0109] Since the swing vane 3 needs to move in the air duct 11 and withstand air pressure, it requires high structural strength. In an example, the reinforcing portion 35 includes a plurality of reinforcing ribs which can be arranged in a staggered manner to greatly improve the structural strength of the swing vane 3.

[0110] Optionally, referring to Figure 10 the reinforcing portion 35 includes a plurality of first reinforcing ribs 351 extending along the extension direction of the long side 36 of the swing vane 3, and a plurality of second reinforcing ribs 352 extending along the extension direction of the wide side 37 of the swing vane 3. The extension direction of the long side 36 of the swing vane 3 is parallel to the length direction of the air outlet 14, and the wide side 37 of the swing vane 3 is adjacent to and intersects with the long side 36. The plurality of first reinforcing ribs 351 and the plurality of second reinforcing ribs 352 are connected in a staggered manner on the second surface 32 of the swing vane 3.

[0111] In an example, as Figure 10 shown, the first air guide portion 34 can include a second reinforcing rib 352 arranged on the second surface 32 of the swing vane 3, in which case the protruding height of the second reinforcing rib 352 on the second surface 32 is greater than the protruding height of the first reinforcing rib 351 on the second surface 32.

[0112] In some embodiments of the present application, as Figures 11 to 13 shown, a third air guide portion 19 is further arranged in the air supply duct segment 110, and the air guide surface 191 of the third air guide portion 19 extends in a direction from the impeller 21 to the air outlet 15, thereby guiding the airflow to the air outlet 15.

[0113] As Figures 11 to 13 shown, the number of third air guide portions 19 can be multiple, and they are arranged in a staggered manner along the width direction of the air supply duct segment 110; the air guide surface 191 of each third air guide portion 19 extends towards the air outlet 15 to guide the airflow to the air outlet 15.

[0114] In an example, as Figure 11 and Figure 12 shown, the third air guide portion 19 is located in the transition duct segment 112 and upstream of the swing vane 3, and thus can support at least a portion of the duct wall of the transition duct segment 112 and the volute portion of the volute duct segment 111, and on the other hand can guide the airflow to the downstream end of the transition duct segment 112.

[0115] In one example, the third air guide part 19 comprises a screw mounting column, and two air guide plates respectively located on both sides of the screw mounting column, each of which has an air guide surface 191. At least a part of the air duct wall of the transition air duct section 112 and the volute portion of the volute air duct section 111 are fixed on the screw mounting column by screws, thereby forming the transition air duct section 112 and the volute air duct section 111. However, the screw mounting column is prone to cause turbulence of the air flow when passing through the position, and therefore, the two air guide plates are further arranged on both sides of the screw mounting column, and the air guide surfaces 191 of the two air guide plates extend parallel to the extension direction of the transition air duct section 112, thereby guiding the air flow from the upstream end of the transition air duct section 112 to the downstream end of the transition air duct section 112 and reducing the turbulence in the process, thereby reducing the energy loss of the air flow.

[0116] In one example, at least a part of the air guide surface 191 of the at least one third air guide part 19 is more inclined to the side where the air outlet 15 is located than the extension direction of the air supply air duct section 110.

[0117] In one example, as shown in Figure 13 The third air guide part 19 is located downstream of the swing page 3 and is closer to the air outlet 15 than the warm air outlet 14, so as to more fully guide the air flow passing through to the air outlet 15, thereby improving the air volume, air distance and air range of the air outlet 15.

[0118] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated.

[0119] The above is only for the purpose of facilitating the understanding of the technical solution of the present application by those skilled in the art, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A heating ventilation device, characterized by, The heating ventilation device comprises a shell (1), a cross-flow fan (2) and a swing page member (3); The shell (1) is internally formed with an air duct (11), the panel (12) of the shell (1) is provided with a warm air outlet (14), the side wall (13) of the shell (1) is provided with a ventilation outlet (15), and the warm air outlet (14) and the ventilation outlet (15) are respectively communicated with the air duct (11); The cross-flow fan (2) is installed in the air duct (11), and the length direction of the impeller (21) of the cross-flow fan (2) is parallel to the length direction of the warm air outlet (14); The swing page member (3) is located in the air duct (11) and downstream of the cross-flow fan (2), and the swing page member (3) can move relative to the shell (1) to close the warm air outlet (14) or the ventilation outlet (15).

2. The warming ventilation device of claim 1, wherein, The length direction of the warm air outlet (14) and the outlet direction of the ventilation outlet (15) have a non-zero included angle.

3. The heating ventilation apparatus according to claim 2, wherein The included angle between the length direction of the warm air outlet (14) and the outlet direction of the ventilation outlet (15) is 45°-90°.

4. The warming ventilation device of claim 1, wherein, The panel (12) of the shell (1) is provided with an air inlet (16), the air inlet (16) and the warm air outlet (14) are arranged at intervals, and the length direction of the air inlet (16) is parallel to the length direction of the warm air outlet (14).

5. The combination according to claim 4, wherein the heater is a heater core. The length direction of the air inlet (16) is parallel to the length direction of the panel (12), the length of the air inlet (16) is less than the length of the panel (12), and the ratio of the length of the air inlet (16) to the length of the panel (12) is greater than a set value; and / or, The length direction of the warm air outlet (14) is parallel to the length direction of the panel (12), the length of the warm air outlet (14) is less than the length of the panel (12), and the ratio of the length of the warm air outlet (14) to the length of the panel (12) is greater than a set value. The set value is greater than 1 / 2 and less than 1.

6. The combination according to claim 5, wherein the heater is a heater core. The set value is 3 / 4.

7. The combination according to claim 1, wherein the heater is a heater core. The air duct (11) comprises a supply air duct section (110), and a ventilation air duct section (113) and a warm air duct section (114) connected with the supply air duct section (110) respectively; The ventilation air duct section (113) has the ventilation outlet (15) away from the downstream end of the supply air duct section (110), and the warm air duct section (114) has the warm air outlet (14) away from the downstream end of the supply air duct section (110); The swing page member (3) is located between the ventilation air duct section (113) and the warm air duct section (114).

8. The combination according to claim 7, wherein the heater is a heater core. The supply air duct section (110) comprises a volute duct section (111) and a transition duct section (112), the downstream end of the volute duct section (111) is connected with the upstream end of the transition duct section (112), and the tangential direction of the downstream end of the volute duct section (111) and the extension direction of the upstream end of the transition duct section (112) have a first included angle, and the first included angle is less than a set angle; and / or, The downstream end of the air supply air duct section (110) is connected with the upstream end of the air exchange air duct section (113), the extension direction of the downstream end of the air supply air duct section (110) and the extension direction of the upstream end of the air exchange air duct section (113) have a second included angle, the second included angle is smaller than the set angle; and / or, The extension direction of the downstream end of the air exchange air duct section (113) and the outlet direction of the air exchange port (15) have a third included angle, the third included angle is smaller than the set angle; The set angle is less than or equal to 10°.

9. The combination of claim 8, wherein the heater is a fan heater. At least one of the first included angle, the second included angle and the third included angle is 0°.

10. The combination according to claim 7, wherein the heater is a heater core. The swing piece (3) is configured to rotate between a first position and a second position, wherein when the swing piece (3) is located in the first position, the air exchange port (15) is closed; when the swing piece (3) is located in the second position, the air heating port (14) is closed; The swing piece (3) has a flow guiding feature (33) for changing the flow direction of the airflow, so that when the swing piece (3) is located in the first position, the airflow is guided to the air heating port (14), and / or, so that when the swing piece (3) is located in the second position, the airflow is guided to the air exchange port (15).

11. The combination of claim 10, wherein the heater is a fan heater. The first surface (31) of the swing piece (3) has a first arc surface (311), the first surface (31) is a surface of the swing piece (3) facing the air heating port (14) and away from the air exchange port (15) when the swing piece (3) is located in the first position; The flow guiding feature (33) includes the first arc surface (311), wherein when the swing piece (3) is located in the first position, the air exchange port (15) is located on the convex side of the first arc surface (311).

12. The warming ventilation device of claim 11, wherein, The inner wall surface of the air supply air duct section (110) has a concave surface (1111), the tangential direction of the downstream end of the concave surface (1111) is towards the air heating port (14) or the air exchange port (15), the impeller (21) is located on the concave side of the concave surface (1111), wherein when the swing piece (3) is located in the first position, the concave surface (1111) is towards the first arc surface (311); and / or, The inner wall surface of the air heating air duct section (114) has a convex surface (1141), the tangential direction of the upstream end of the convex surface (1141) is towards the impeller (21), the tangential direction of the downstream end of the convex surface (1141) is towards the air heating port (14), the swing piece (3) is located on the convex side of the convex surface (1141), wherein when the swing piece (3) is located in the first position, the first arc surface (311) is towards the convex surface (1141).

13. The combination of claim 10, wherein the heater is a fan heater. The second surface (32) of the swing piece (3) is a plane or has a second arc surface (321), the second surface (32) is a surface of the swing piece (3) facing the air exchange port (15) and away from the air heating port (14) when the swing piece (3) is located in the first position; The second surface (32) of the swing piece (3) is a plane or has a second arc surface (321), the second surface (32) is a surface of the swing piece (3) facing the air exchange port (15) and away from the air heating port (14) when the swing piece (3) is located in the first position; The guide feature (33) comprises the plane or the second curved surface (321), wherein when the second surface (32) has the second curved surface (321) and the swing piece (3) is located at the second position, the air outlet (14) is located on the convex side of the second curved surface (321).

14. The combination of claim 13, wherein the heater is a fan heater. The second surface (32) of the swing piece (3) is provided with a first air guide part (34), which extends in a direction from the impeller (21) to the air outlet (15) when the swing piece (3) is located at the second position, for guiding the airflow to flow to the air outlet (15).

15. The combination of claim 10, wherein the heater is a fan heater. The swing piece (3) is provided with a reinforcing part (35) for improving the structural strength of the swing piece (3).

16. The combination of claim 15, wherein the heater is a fan heater. The reinforcing part (35) comprises: a first reinforcing rib (351) extending in the extension direction of the long side (36) of the swing piece (3), the extension direction of the long side (36) of the swing piece (3) being parallel to the length direction of the air outlet (14); and / or, a second reinforcing rib (352) extending in the extension direction of the wide side (37) of the swing piece (3), the wide side (37) of the swing piece (3) being adjacent to and intersecting with the long side (36).

17. The combination according to claim 10, wherein the heater is a fan heater. The inner wall of the air supply duct section (110) is provided with a second air guide part (17), which is located upstream of the swing piece (3) and can cooperate with the second air guide part (17) when the swing piece (3) is located at the first position to guide the airflow generated by the cross-flow fan (2) to flow to the air outlet (14).

18. The combination of claim 17, wherein the heater is a fan heater. When the swing piece (3) is located at the first position, there is a clearance (18) between the swing piece (3) and the second air guide part (17) for avoiding the rotation of the swing piece (3).

19. The combination of claim 17, wherein the heater is a fan heater. The third surface (171) of the second air guide part (17) facing away from the air outlet (15) has an inclined surface, and the inclined direction of the inclined surface is that the closer to the air outlet (15), the closer to the air outlet (14); or, The third surface (171) of the second air guide part (17) facing away from the air outlet (15) has a third curved surface, and when the swing piece (3) is located at the first position, the end (38) of the swing piece (3) close to the second air guide part (17) is located on the convex side of the third curved surface.

20. The combination of claim 7, wherein, The air supply duct section (110) is provided with a third air guide part (19) extending in a direction from the impeller (21) to the air outlet (15) for guiding the airflow to flow to the air outlet (15).

21. The combination of claim 20, wherein, The number of the third air guide parts (19) is multiple, and the multiple third air guide parts (19) are arranged in the width direction of the air supply duct section (110); The air guide surface (191) of each third air guide part (19) extends towards the air outlet (15) to guide the airflow to flow to the air outlet (15).

22. The heating ventilation apparatus according to claim 20 or 21, wherein The third air guide part (19) is located downstream of the swing vane (3) and is arranged closer to the air exchange opening (15) than to the air outlet (14); and / or, At least a part of the air guide surface (191) of at least one third air guide part (19) is inclined to the side where the air exchange opening (15) is located more than the extension direction of the air supply air duct section (110).

Images