An inner air valve module and a window fresh air machine with inner and outer air valve mechanism

Abstract

The utility model provides a kind of inner air valve module and the window type fresh air machine with inside and outside double air valve mechanism, inner air valve module includes: two end seats, inner air valve plate and rotary drive component, end seat is used to with the detachable connection of the shell of window type fresh air machine;Inner air valve plate extends along preset direction, and the connecting portion extending along preset direction is provided on inner air valve plate, two end seats are sequentially arranged along preset direction, and two end seats are all rotationally matched with connecting portion;Rotary drive component is driven to connect with connecting portion.Relative to prior art, the inner air valve plate in the inner air valve module of the utility model can be made by extrusion molding process, and is cut according to the length of the actual indoor air port of window type fresh air machine, so that the inner air valve plate is relatively simple and flexible, the application range is wider, the cost can be saved better, the overall structure is simple, convenient to open and close, and can be disassembled relative to window type fresh air machine, whether installation can be selected according to the needs of user.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to an internal air valve module and a window-type fresh air unit with internal and external dual air valve mechanisms. Background Technology

[0002] With the development of China's economy, the concept of fresh air systems has become widely accepted, and more and more residents have a need for them. However, the proportion of existing houses equipped with fresh air systems was not high in the past, and traditional fresh air units were limited by construction difficulty and cost, which hindered the development of the fresh air industry. Because the environments for renovation vary widely, the size of the units needs to be adjusted according to the actual situation. Currently, the damper plates of window-type fresh air units are usually injection molded in one piece. If the installation environment changes, the size of the air outlet of the window-type fresh air unit also needs to be changed accordingly, and the size of the damper plate also needs to be adjusted. However, the size of the injection-molded damper plate cannot be changed; it can only be produced by creating a mold to the corresponding size. However, the mold cost is extremely high, and if a corresponding mold is needed for each size, the cost is quite large. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings and deficiencies in the existing technology and provide an internal air valve module and a window-type fresh air unit with internal and external dual air valve mechanisms.

[0004] One embodiment of this utility model provides an internal air valve module, comprising:

[0005] Two end seats for detachable connection to the housing of the window-type fresh air unit;

[0006] An inner air valve plate extends along a preset direction and is provided with a connecting part extending along the preset direction. Two end seats are arranged sequentially along the preset direction and both end seats are rotatably engaged with the connecting part.

[0007] A rotary drive assembly is driven to be connected to the connecting part.

[0008] In some alternative embodiments, the connecting portion is a connecting hole formed on the inner air valve plate, the connecting hole having a radial opening on one side in the preset direction, and the rotary drive assembly being driven connected to the connecting hole via a connector, wherein the connector extends into the connecting hole from the radial opening.

[0009] In some alternative embodiments, the connector includes a base plate, a pressing part, and a connecting shaft part connected in sequence, the rotary drive assembly is driven to the base plate, the pressing part passes through the radial opening, and the connecting shaft part is arranged in the connecting hole.

[0010] In some alternative embodiments, the rotary drive assembly includes a drive motor and a transmission crank. The output shaft of the drive motor is drivenly connected to the transmission crank. The transmission crank is rotatably mounted on one of the end seats. The connecting member is provided with a sliding groove. The transmission crank is slidably engaged with the sliding groove. When the transmission crank rotates, it slides relative to the sliding groove and drives the connecting member to rotate. When the connecting member rotates, it drives the inner air valve plate to rotate.

[0011] In some alternative embodiments, one of the end seats is provided with two limiting members, which are arranged sequentially along the rotation direction of the transmission crank, with the transmission crank located between the two limiting members.

[0012] In some alternative embodiments, one of the end seats is further provided with a baffle, which is connected to two of the limiting members respectively. The baffle, the two limiting members and the end seat surround each other to form a limiting space for limiting the range of movement of the transmission crank, and a portion of the transmission crank passes through the limiting space.

[0013] In some alternative embodiments, a drive shaft is provided on the drive crank, a limit snap ring is provided on the drive shaft, the drive shaft passes through the sliding groove, and the limit snap ring is located on the side of the connector away from the drive crank.

[0014] In some optional embodiments, the connecting portion has axial openings at both ends in the preset direction, and the end seat is provided with a rotating shaft portion, which extends into the connecting portion from the axial openings to enable the end seat and the connecting portion to rotate together.

[0015] Another embodiment of this utility model provides a window-type fresh air unit with an internal and external dual-valve mechanism, comprising: an outer shell, a fresh air module, and an internal valve module as described in any one of the claims. The outer shell has an installation cavity with an outdoor air vent and an indoor air vent. The end cap of the internal valve module is detachably installed in the installation cavity. The internal valve plate of the internal valve module is arranged at the indoor air vent for opening or closing the indoor air vent. The fresh air module is disposed within the outer shell and has an air cavity with an air inlet and an air outlet. The air inlet communicates with the outdoor air vent, and the air outlet communicates with the indoor air vent. A fresh air fan is disposed within the air cavity, and an external valve module for opening or closing the air outlet is disposed at the air inlet.

[0016] In some alternative embodiments, the window-type fresh air unit with internal and external dual air valve mechanisms further includes a control module disposed within the mounting cavity and electrically connected to the external air valve module and the internal air valve module.

[0017] Compared to existing technologies, the inner air valve plate in the inner air valve module of this utility model can be manufactured using an extrusion molding process. It can be cut according to the length of the indoor air vent of the actual window-type fresh air unit, making the inner air valve plate simpler and more flexible to form, with a wider range of applications. It can save costs, has a simple overall structure, is easy to open and close, and can be disassembled and installed relative to the window-type fresh air unit. Users can choose whether to install it according to their needs.

[0018] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a window-type fresh air unit with an internal and external dual air valve mechanism according to an embodiment of the present invention.

[0020] Figure 2 This is a cross-sectional view of a window-type fresh air unit with an internal and external dual air valve mechanism according to an embodiment of the present invention.

[0021] Figure 3 An exploded view of a window-type fresh air unit with an internal and external dual air valve mechanism according to an embodiment of the present invention;

[0022] Figure 4 This is an exploded view of an internal air valve module according to an embodiment of the present invention;

[0023] Figure 5 This is a partial structural schematic diagram of an internal air valve module according to an embodiment of the present invention;

[0024] Figure 6 This is a partial cross-sectional view of an internal air valve module according to an embodiment of the present invention;

[0025] Figure 7 for Figure 4 The enlarged view of point A shown.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10. Outer shell; 11. Mounting cavity; 12. Outdoor air outlet; 13. Indoor air outlet; 20. Fresh air module; 21. Air cavity; 22. Air inlet; 23. Air outlet; 24. Fresh air fan; 25. External air valve module; 30. Internal air valve module; 31. End seat; 311. Limiting component; 312. Baffle; 313. Limiting space; 32. Internal air valve plate; 321. Connecting part; 322. Radial opening; 323. Axial opening; 33. Rotary drive assembly; 331. Drive motor; 332. Transmission crank; 333. Transmission shaft; 334. Limiting snap ring; 34. Connecting component; 341. Base plate; 342. Pressing part; 343. Connecting shaft part; 344. Sliding groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, 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 indicated technical features.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical 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 based on the specific circumstances.

[0031] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Please see Figures 1 to 4 One embodiment of this utility model provides a window-type fresh air unit with an internal and external dual air valve mechanism, including: an outer shell, a fresh air module, and an internal air valve module.

[0033] The housing contains an installation cavity, which has an outdoor air vent and an indoor air vent.

[0034] The internal air valve module includes two end seats, an internal air valve plate, and a rotary drive assembly; the end seats are used for detachable connection with the housing of the window-type fresh air unit; the internal air valve plate extends along a preset direction and is provided with a connecting part extending along the preset direction; the two end seats are arranged sequentially along the preset direction, and both end seats are rotatably engaged with the connecting part; the rotary drive assembly is drivenly connected to the connecting part.

[0035] The end seat is detachably installed in the mounting cavity. The inner air valve plate is arranged at the indoor air vent for opening or closing the indoor air vent. The fresh air module is disposed in the outer shell. The fresh air module has an air cavity with an air inlet and an air outlet. The air inlet is connected to the outdoor air vent, and the air outlet is connected to the indoor air vent. A fresh air fan is disposed in the air cavity, and an external air valve module for opening or closing the air outlet is disposed at the air inlet.

[0036] The end bracket can be detachably connected to the outer casing or the fresh air module, thereby fixing the end bracket and allowing it to be installed inside the mounting cavity. In this embodiment, the end bracket is installed on the outer casing with several screws, thus achieving detachable installation on the outer casing.

[0037] In this embodiment, a filter screen is installed inside the outdoor air vent to prevent mosquitoes from passing through the outdoor air vent.

[0038] The working principle of a window-type fresh air unit with an internal and external dual-valve mechanism according to an embodiment of the present invention is explained below:

[0039] When fresh air needs to be introduced into the room, it first enters the outer casing through the outdoor air vent, then enters the air cavity through the air inlet, then exits through the air outlet of the air cavity, and finally enters the room through the indoor air vent. The outdoor air valve module can close the air inlet, thereby preventing outdoor fresh air from entering the air cavity and thus preventing the flow of indoor and outdoor air. The indoor air valve module is used to open and close the indoor air vent, and can also prevent airflow into the room. Although the outdoor air valve module alone can achieve the same effect, adding an indoor air valve module helps to conceal the indoor air vent, thus improving aesthetics. Moreover, when the indoor air vent is closed by the indoor air valve module, it also helps to improve the airtightness and prevent the flow of outdoor and indoor air.

[0040] Of course, since the internal air valve module will increase costs, users can choose whether to install it based on their needs. If users want to reduce costs by pursuing cost-effectiveness, they do not need to install the internal air valve module. If users want to pursue performance and aesthetics, they can install the internal air valve module on the window-type fresh air unit.

[0041] The internal air damper plate can be manufactured using an extrusion molding process, cut to the appropriate length according to the indoor air vents of the actual window-type fresh air unit. This makes the internal air damper plate simple and flexible to form, with a wider range of applications, effectively saving costs. The overall structure is simple, easy to open and close, and can be disassembled and reassembled relative to the window-type fresh air unit, allowing users to choose whether to install it based on their needs. It should be noted that during the cutting of the internal air damper plate, the connecting parts are also cut to the corresponding length, ensuring that the two end seats and the rotary drive assembly can connect to the internal air damper plate.

[0042] The specific structure of the connecting part can be designed according to actual needs. For example, in some optional embodiments, the connecting part is a connecting hole formed on the inner air valve plate. The connecting hole has a radial opening on one side in the preset direction. The rotary drive assembly is driven to connect with the connecting hole through a connector. The connector extends into the connecting hole from the radial opening. The rotary drive assembly can drive the connector to rotate. When the connector rotates, it presses against the inner wall of the radial opening and then drives the inner air valve plate to rotate relative to the end seat. The rotation of the inner air valve plate thereby opens or closes the indoor air vent.

[0043] Please see Figures 5 to 7The specific structure of the connector can be designed according to actual needs. For example, in some optional embodiments, the connector includes a base plate, a pressing part and a connecting shaft part connected in sequence. The rotary drive assembly is driven to the base plate. The pressing part passes through the radial opening. The connecting shaft part is arranged in the connecting hole. The rotary drive assembly can drive the base plate to rotate. The base plate drives the pressing part to abut against the inner wall of the radial opening, thereby driving the inner air valve plate to rotate relative to the end seat. The connecting shaft part is connected to the connecting part, thereby realizing the mutual assembly of the connector and the connecting part.

[0044] The specific structure of the rotary drive assembly can be designed according to actual needs. For example, in some optional embodiments, the rotary drive assembly includes a drive motor and a transmission crank. The output shaft of the drive motor is drivenly connected to the transmission crank. The transmission crank is rotatably mounted on one of the end seats. The connecting member is provided with a sliding groove, and the transmission crank slides into the sliding groove. When the transmission crank rotates, it slides relative to the sliding groove and drives the connecting member to rotate. When the connecting member rotates, it drives the inner air valve plate to rotate. The drive motor drives the transmission crank to rotate, and the transmission crank drives the connecting member to rotate along the sliding groove, thereby driving the inner air valve plate to rotate.

[0045] In some optional embodiments, one of the end seats is provided with two limiting members, which are arranged sequentially along the rotation direction of the transmission crank. The transmission crank is located between the two limiting members, and the limiting members restrict the rotation range of the transmission crank. When the inner air valve plate closes the indoor air vent, the transmission crank abuts against one of the limiting members. When the inner air valve plate opens the indoor air vent to a sufficiently large size, the transmission crank abuts against the other limiting member, thereby realizing the accurate opening and closing of the indoor air vent by the inner air valve plate.

[0046] In some alternative embodiments, one of the end seats is further provided with a baffle, which is connected to two of the limiting members respectively. The baffle, the two limiting members and the end seat surround each other to form a limiting space for limiting the range of movement of the transmission crank. A portion of the transmission crank passes through the limiting space. The rotation range of the transmission crank is accurately and stably limited by the limiting space. Moreover, the baffle can prevent the transmission crank from jumping in the axial direction and improve the rotational stability of the transmission crank.

[0047] In some optional embodiments, a drive shaft is provided on the drive crank, and a limiting snap ring is provided on the drive shaft. The drive shaft passes through the sliding groove, and the limiting snap ring is located on the side of the connecting member away from the drive crank. The drive shaft realizes a stable connection between the drive crank and the connecting member. The drive shaft can rotate and slide relative to the sliding groove. The limiting snap ring can restrict the connecting member between the limiting snap ring and the drive crank, realizing the assembly of the connecting member and the drive crank. In this embodiment, the sliding groove is provided on the base plate.

[0048] In some optional embodiments, the connecting part has axial openings at both ends in the preset direction, and the end seat is provided with a rotating shaft. The rotating shaft extends into the connecting part from the axial opening to enable the end seat and the connecting part to rotate. In this embodiment, the connecting part is a connecting hole, so the rotating shaft is inserted into the connecting hole from the axial opening, thereby enabling the end seat to rotate with the connecting part through the rotating shaft.

[0049] Because the length of the inner air valve plate determines the length of the axial opening at both ends of the connection, and the radial opening will also be of a corresponding length, the molding process is convenient and there is no need to make a corresponding mold for each size.

[0050] The specific structure of the external air valve module can be designed according to actual needs. For example, the external air valve module includes a translation drive module and an external air valve plate. The external air valve plate moves relative to the air inlet to close and open the air inlet. The translation drive module can adopt an electric cylinder or other suitable structure. Of course, the principle and structure of the external air valve module are well known to those skilled in the art, and other implementation methods will not be described in detail here.

[0051] In some optional embodiments, the window-type fresh air unit with internal and external dual air valve mechanisms also includes a control module. This control module is disposed within the mounting cavity and electrically connected to both the external and internal air valve modules. In this embodiment, the control module is a circuit board, located on the side of the fresh air module. The circuit board is electrically connected to the external air valve module and to the drive motor via wires. Since the circuit board and wires are known technologies, they will not be illustrated or described in detail here.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An internal air valve module, characterized in that, include: Two end seats for detachable connection to the housing of the window-type fresh air unit; An inner air valve plate extends along a preset direction and is provided with a connecting part extending along the preset direction. Two end seats are arranged sequentially along the preset direction and both end seats are rotatably engaged with the connecting part. A rotary drive assembly is driven to be connected to the connecting part.

2. The internal air valve module according to claim 1, characterized in that: The connecting part is a connecting hole formed on the inner air valve plate. The connecting hole has a radial opening on one side in the preset direction. The rotary drive assembly is driven to the connecting hole through a connector, wherein the connector extends into the connecting hole from the radial opening.

3. An internal air valve module according to claim 2, characterized in that: The connector includes a base plate, a pressing part, and a connecting shaft part connected in sequence. The rotation drive assembly is driven to the base plate. The pressing part passes through the radial opening, and the connecting shaft part is arranged in the connecting hole.

4. An internal air valve module according to claim 2, characterized in that: The rotary drive assembly includes a drive motor and a transmission crank. The output shaft of the drive motor is drivenly connected to the transmission crank. The transmission crank is rotatably mounted on one of the end seats. The connecting member is provided with a sliding groove. The transmission crank is slidably engaged with the sliding groove. When the transmission crank rotates, it slides relative to the sliding groove and drives the connecting member to rotate. When the connecting member rotates, it drives the inner air valve plate to rotate.

5. An internal air valve module according to claim 4, characterized in that: One of the end seats is provided with two limiting members, which are arranged sequentially along the rotation direction of the transmission crank, and the transmission crank is located between the two limiting members.

6. An internal air valve module according to claim 5, characterized in that: One of the end seats is also provided with a baffle, which is connected to the two limiting members respectively. The baffle, the two limiting members and the end seat surround each other to form a limiting space for limiting the range of movement of the transmission crank, and a part of the transmission crank passes through the limiting space.

7. An internal air valve module according to claim 4, characterized in that: A drive shaft is provided on the drive crank, and a limit snap ring is provided on the drive shaft. The drive shaft passes through the sliding groove, and the limit snap ring is located on the side of the connector away from the drive crank.

8. An internal air valve module according to any one of claims 1 to 7, characterized in that: The connecting part has axial openings at both ends in the preset direction, and the end seat is provided with a rotating shaft. The rotating shaft extends into the connecting part from the axial openings so that the end seat and the connecting part can be rotated together.

9. A window-type fresh air unit with an internal and external dual-valve mechanism, characterized in that, include: The system comprises a housing, a fresh air module, and an internal air valve module as described in any one of claims 1 to 8. The housing contains a mounting cavity with an outdoor air vent and an indoor air vent. The end cap of the internal air valve module is detachably mounted within the mounting cavity. An internal air valve plate of the internal air valve module is arranged at the indoor air vent for opening or closing the indoor air vent. The fresh air module is disposed within the housing and contains an air cavity with an air inlet and an air outlet. The air inlet communicates with the outdoor air vent, and the air outlet communicates with the indoor air vent. A fresh air fan is disposed within the air cavity, and an external air valve module for opening or closing the air outlet is disposed at the air inlet.

10. A window-type fresh air unit with an internal and external dual-valve mechanism according to claim 9, characterized in that, Also includes: A control module is disposed within the mounting cavity and is electrically connected to the external air valve module and the internal air valve module.

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