Air valve assembly and fresh air device

Abstract

The utility model provides an air valve assembly and a fresh air device. The air valve assembly comprises a fresh air valve, a return air valve and a linkage mechanism. The fresh air valve comprises a fresh air door and a fresh air driving mechanism used for driving the fresh air door to be opened and closed. The air return valve comprises an air return door and an air return driving mechanism used for driving the air return door to be opened and closed. And the linkage mechanism is in power connection with the fresh air driving mechanism and the return air driving mechanism, so that the fresh air driving mechanism and the return air driving mechanism can synchronously move. According to the air valve assembly, the linkage mechanism is arranged, so that the fresh air driving mechanism and the return air driving mechanism can move synchronously, when one of the fresh air driving mechanism and the return air driving mechanism is driven by the power source, the fresh air driving mechanism and the return air driving mechanism can move simultaneously, the number of the power source is reduced, and the cost of the air valve assembly is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fresh air device, in particular to a wind valve assembly and a fresh air device. BACKGROUND

[0002] The fresh air device is a device for adjusting the temperature, humidity and cleanliness of indoor air. A mixed air duct is usually provided in the fresh air device to mix indoor air and external fresh air to adjust the temperature and humidity of indoor air. A wind valve assembly is provided in the fresh air device to introduce fresh air and return air into the mixed air duct. At present, the fresh air valve and the return air valve are independently provided, and both of them need to be provided with a power source, so that the number of power sources is large, which increases the cost of the wind valve assembly. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a wind valve assembly and a fresh air device to solve the related technical problems.

[0004] The present application provides a wind valve assembly, which comprises a fresh air valve, a return air valve and a linkage mechanism. The fresh air valve comprises a fresh air damper and a fresh air driving mechanism for driving the fresh air damper to open and close. The return air valve comprises a return air damper and a return air driving mechanism for driving the return air damper to open and close. The linkage mechanism is power connected to the fresh air driving mechanism and the return air driving mechanism, so that the fresh air driving mechanism and the return air driving mechanism can move synchronously. When one of the fresh air driving mechanism and the return air driving mechanism is driven by a power source, both of them can move simultaneously, which reduces the number of power sources and the cost of the wind valve assembly.

[0005] Further, the fresh air driving mechanism comprises a first fresh air gear and a second fresh air gear which are power connected; and / or, the return air driving mechanism comprises a first return air gear and a second return air gear which are power connected. The gear transmission has a simple structure, wide applicability, precise transmission ratio and good running stability, which improves the opening and closing precision and stability of the wind valve assembly.

[0006] Further, the fresh air driving mechanism and the return air driving mechanism are located on the same side of the wind valve assembly, and the linkage mechanism comprises a belt which is power connected to the fresh air driving mechanism and the return air driving mechanism. The belt transmission has low noise, thereby reducing the overall noise of the wind valve assembly. At the same time, the belt transmission only occupies the space on one side of the wind valve assembly, which reduces the space installation requirement.

[0007] Further, the belt comprises a plurality of protrusions formed from the inner side of the main body, and part of the protrusions are embeddedly installed with the fresh air driving mechanism, and part of the protrusions are embeddedly installed with the return air driving mechanism. By embedding the protrusions with the driving mechanism, the connection strength between the linkage mechanism and the driving mechanism is improved, so that the linkage mechanism can smoothly drive the fresh air damper and the return air damper to move synchronously, and the normal operation of the damper assembly is ensured.

[0008] Further, the linkage mechanism further comprises a tension pulley, a fresh air driven pulley fixed to the fresh air driving mechanism, a return air driven pulley fixed to the return air driving mechanism, and an actuator; the belt elastically connects the tension pulley, the fresh air driven pulley and the return air driven pulley, and the actuator is in power connection with the tension pulley. By arranging the tension pulley, the connection strength between the belt and the fresh air driven pulley and the return air driven pulley is improved, so that the operation stability of the damper assembly is improved.

[0009] Further, the fresh air damper is bent to form a sheet metal part on the side facing the fresh air driving mechanism, and the tension pulley and the actuator are fixed to the sheet metal part. By arranging the sheet metal part to fix the tension pulley and the actuator, the connection strength between the tension pulley and the actuator is improved.

[0010] Further, the sheet metal part is fixed with a connecting plate, and the tension pulley and the actuator are fixed to the connecting plate. By adding the connecting plate, the fixing strength of the tension pulley and the actuator is further improved.

[0011] Further, the connecting plate comprises a first connecting part and a second connecting part arranged to be disconnected, the tension pulley is fixed to the first connecting part, and the actuator is fixed to the second connecting part. By disconnecting the connecting plate into the first connecting part and the second connecting part, and respectively installing the tension pulley and the actuator, the installation difficulty of the damper assembly is reduced, and the assembly efficiency is improved.

[0012] Further, the connecting plate is in L shape, which is simple in structure and has good strength.

[0013] The application also provides a fresh air device comprising the above damper assembly. Since the number of power sources is reduced, the cost of the fresh air device of the application is low.

[0014] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the specification. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the specification, and together with the specification serve to explain the principles of the specification.

[0016] Figure 1 is a structural diagram of a wind valve assembly in an exemplary embodiment of the present application;

[0017] Figure 2 is a structural diagram of a belt in Figure 1

[0018] Figure 3 is a structural diagram of another wind valve assembly in an exemplary embodiment of the present application;

[0019] Figure 4 is a structural diagram of a wind valve assembly in Figure 3

[0020] Figure 5 is a partial structural diagram of a wind valve assembly in Figure 3

[0021] BRIEF DESCRIPTION OF DRAWINGS: Fresh air valve-10; Fresh air damper-11; Fresh air driving mechanism-12; First fresh air gear-121; Second fresh air gear-122; Sheet metal part-13; Connecting branch plate-14; First connecting part-141; Second connecting part-142; Return air valve-20; Return air damper-21; Return air driving mechanism-22; First return air gear-221; Second return air gear-222; Linkage mechanism-30; Belt-31; Main body-311; Convex tooth-312; Tension pulley-32; Fresh air driven wheel-33; Return air driven wheel-34; Actuator-35. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments (or, modes of implementation) of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0023] If the present embodiments involve directional indications or positional relationships (such as up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships, movement conditions, etc. between components in a certain specific posture (as shown in the drawings); if the specific posture changes, the directional indications or positional relationships also change accordingly. In addition, the terms “first”, “second”, etc. in the present embodiments are only used for convenience of description, and cannot be understood as indicating or implying relative importance.

[0024] ​​​A mixing air duct is commonly provided in a fresh air device, and by opening and closing of a fresh air damper and a return air damper, fresh air and return air are mixed to regulate the temperature and humidity in a room. At present, the fresh air damper and the return air damper need to be separately provided with corresponding power sources, which increases the cost of the damper assembly. The present application provides a damper assembly and a fresh air device to solve the related technical problems.

[0025] As shown in Figure 1 , the present application provides a damper assembly, which comprises a fresh air damper 10, a return air damper 20 and a linkage mechanism 30. The fresh air damper 10 comprises a fresh air damper 11 and a fresh air driving mechanism 12. The fresh air driving mechanism 12 is used to drive the fresh air damper 11 to open and close. The return air damper 20 comprises a return air damper 21 and a return air driving mechanism 22. The return air driving mechanism 22 is used to drive the return air damper 21 to open and close.

[0026] The linkage mechanism 30 is power connected to the fresh air driving mechanism 12 and the return air driving mechanism 22, so that the fresh air driving mechanism 12 and the return air driving mechanism 22 can move synchronously. When one of the fresh air driving mechanism 12 and the return air driving mechanism 22 is driven by a power source, both of them can move at the same time, which reduces the number of power sources and the cost of the damper assembly.

[0027] In an embodiment, when the fresh air damper 10 is opened by 100%, the return air damper 20 can be in a closed state. When the fresh air damper 10 is opened by 40%, the return air damper can be opened by 60%. When the fresh air damper 10 is in a closed state, the return air damper 20 can be opened by 100%. The specific opening or closing state of the fresh air damper 10 and the return air damper 20 is not limited, and both of them can move synchronously through the linkage mechanism 30.

[0028] In an embodiment, as shown in Figure 1 , the fresh air driving mechanism 12 comprises a first fresh air gear 121 and a second fresh air gear 122 which are power connected. The return air driving mechanism 22 comprises a first return air gear 221 and a second return air gear 222 which are power connected. Compared with a linkage mechanism, the gear transmission structure is relatively simple, has wide applicability, has relatively precise transmission ratio and good running stability, and improves the opening and closing precision and stability of the damper assembly.

[0029] In other embodiments, only the fresh air driving mechanism 12 or only the return air driving mechanism 22 can be gear transmission. The specific structure of the fresh air driving mechanism 12 and the return air driving mechanism 22 is not limited, and they can control the corresponding dampers to open and close.

[0030] In an embodiment, as shown in Figure 3 and Figure 4As shown, the fresh air driving mechanism 12 and the return air driving mechanism 22 are located at the same side of the air valve assembly. The linkage mechanism 30 can include a belt 31, a tension pulley 32, a fresh air driven pulley 33, a return air driven pulley 34, and an actuator 35. The belt 31 is power connected to the fresh air driving mechanism 12 and the return air driving mechanism 22. The belt transmission has lower noise, thereby reducing the overall noise of the air valve assembly. At the same time, the belt transmission only occupies the space on one side of the air valve assembly, thereby reducing the space installation requirement. In other embodiments, the specific structure of the linkage mechanism 30 is not limited.

[0031] In an embodiment, as shown in Figure 1 and Figure 2 The belt 31 includes a ring-shaped main body 311 and a plurality of protrusions 312 protruding from the inner side of the main body 311. Some of the protrusions 312 are fitted and installed with the fresh air driving mechanism 12, and some of the protrusions 312 are fitted and installed with the return air driving mechanism 22.

[0032] By fitting and installing the protrusions 312 with the driving mechanisms, the connection strength between the linkage mechanism 30 and the driving mechanisms is improved, so that the linkage mechanism 30 can smoothly drive the fresh air valve 10 and the return air valve 20 to move synchronously, thereby ensuring the normal operation of the air valve assembly. In other embodiments, the specific structure of the belt 31 is not limited.

[0033] In an embodiment, as shown in Figure 3 and Figure 4 The fresh air driven pulley 33 is fixed to the fresh air driving mechanism 12. The return air driven pulley 34 is fixed to the return air driving mechanism 22. The belt 31 is elastically connected to the tension pulley 32, the fresh air driven pulley 33, and the return air driven pulley 34. The fresh air driven pulley 33 is fixedly connected to the first fresh air gear 121. The return air driven pulley 34 is fixedly connected to the first return air gear 221.

[0034] The actuator 35 is power connected to the tension pulley 32. By providing the tension pulley 32, the tension of the belt 31 can be adjusted, thereby improving the connection strength between the belt 31 and the fresh air driven pulley 33 and the return air driven pulley 34, and thereby improving the operation stability of the air valve assembly.

[0035] In an embodiment, the fresh air valve 10 is bent to form a sheet metal part 13 on the side where the fresh air driving mechanism 12 is arranged. The tension pulley 32 and the actuator 35 are fixed to the sheet metal part 13. Specifically, the tension pulley 32 and the actuator 35 can be fixed to the sheet metal part 13 by threaded connection. By providing the sheet metal part 13 to fix the tension pulley 32 and the actuator 35, the connection strength of the tension pulley 32 and the actuator 35 is improved. In other embodiments, the fixing mode of the tension pulley 32 and the actuator 35 is not limited.

[0036] In an embodiment, the metal plate 13 is fixed with a connecting plate 14, and the tensioning wheel 32 and the actuator 35 are fixed to the connecting plate 14. By adding the connecting plate 14, the fixing strength of the tensioning wheel 32 and the actuator 35 is further improved. The connecting plate 14 can be fixed to the metal plate 13 by welding or screwing, etc. The tensioning wheel 32 and the actuator 35 can be fixed to the connecting plate 14 by screwing or clamping.

[0037] In an embodiment, as shown in Figure 4 and Figure 5 The connecting plate 14 includes a first connecting portion 141 and a second connecting portion 142. The first connecting portion 141 and the second connecting portion 142 are separately arranged. The tensioning wheel 32 is fixed to the first connecting portion 141, and the actuator 35 is fixed to the second connecting portion 142.

[0038] By separately arranging the first connecting portion 141 and the second connecting portion 142, and respectively installing the tensioning wheel 32 and the actuator 35, the assembly difficulty of the air valve assembly is reduced, and the assembly efficiency is improved. In other embodiments, the first connecting portion 141 and the second connecting portion 142 can be integrally arranged, so as to improve the overall structural strength of the connecting plate 14.

[0039] In an embodiment, the connecting plate 14 is in an L shape. The L-shaped plate structure is relatively simple and has good strength. In other embodiments, the specific structural form of the connecting plate 14 is not limited.

[0040] The application also provides a fresh air device, which includes the air valve assembly described above. Since the number of power sources is reduced, the cost of the fresh air device of the application is relatively low.

[0041] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the application is not limited to the precise structures described in the above embodiments and shown in the drawings; any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the scope of protection of the application.

Claims

1. A damper assembly, characterized by, The wind valve assembly comprises: a fresh air damper, a return air damper and a linkage mechanism; the fresh air damper comprises a fresh air damper door and a fresh air driving mechanism for driving the fresh air damper door to open and close; the return air damper comprises a return air damper door and a return air driving mechanism for driving the return air damper door to open and close; the linkage mechanism is power-connected with the fresh air driving mechanism and the return air driving mechanism, so that the fresh air driving mechanism and the return air driving mechanism can move synchronously.

2. The damper assembly of claim 1, wherein, the fresh air driving mechanism comprises a first fresh air gear and a second fresh air gear which are power-connected; and / or, the return air driving mechanism comprises a first return air gear and a second return air gear which are power-connected.

3. The damper assembly of claim 1, wherein, the fresh air driving mechanism and the return air driving mechanism are located on the same side of the wind valve assembly; the linkage mechanism comprises a belt which is power-connected with the fresh air driving mechanism and the return air driving mechanism.

4. The damper assembly of claim 3, wherein, the belt comprises a ring-shaped main body and a plurality of protrusions which are protruded from the inner side of the main body, part of the protrusions are embeddedly installed with the fresh air driving mechanism, and part of the protrusions are embeddedly installed with the return air driving mechanism.

5. The damper assembly of claim 3, wherein, the linkage mechanism further comprises a tension pulley, a fresh air driven gear fixed to the fresh air driving mechanism, a return air driven gear fixed to the return air driving mechanism, and an actuator; the belt is elastically connected with the tension pulley, the fresh air driven gear and the return air driven gear, and the actuator is power-connected with the tension pulley.

6. The damper assembly of claim 5, wherein, the fresh air damper is bended to form a sheet metal part towards the side where the fresh air driving mechanism is arranged, and the tension pulley and the actuator are fixed to the sheet metal part.

7. The damper assembly of claim 6, wherein, the sheet metal part is fixed with a connecting plate, and the tension pulley and the actuator are fixed to the connecting plate.

8. The damper assembly of claim 7, wherein, the connecting plate comprises a first connecting part and a second connecting part which are arranged separately, the tension pulley is fixed to the first connecting part, and the actuator is fixed to the second connecting part.

9. The damper assembly of claim 7, wherein, the connecting plate is in L shape.

10. A fresh air device, characterized by The wind valve assembly according to any one of claims 1-9. ​

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