CN217876269U - Air valve and ventilation equipment adopting same - Google Patents

Abstract

The utility model provides an air valve and ventilation equipment using the air valve. Wherein, the air valve includes an upright frame defining an air vent, an air plate that rotates around a pivot fixed on the frame to open or close the air vent, and a motor that cooperates with the pivot to drive the air plate to rotate. The air valve also includes a switch with a button arranged on the frame, and a limit projection fixedly arranged on the pivot and extending radially, wherein the limit projection presses against the above-mentioned button to trigger the switch. The opening or closing of the channel can be effectively sensed by setting the limit bump and the switch and the cooperation between the two, so as to realize corresponding control.

Description

Damper and ventilation equipment using the damper

technical field

The utility model relates to an air valve, in particular to an air valve suitable for controlling the opening and closing of an air passage in ventilation equipment.

The utility model also relates to a ventilation device adopting the air valve.

Background technique

Traditional ventilation equipment can use fans to force indoor air to the outside. When the doors and windows are closed at home, only the indoor air is discharged to the outside, which may cause indoor hypoxia, so a ventilation device for ventilation is proposed. The ventilator utilizes an exhaust fan to discharge indoor air to the outside, and utilizes a blower to send outdoor air into the room. A heat exchange core can also be designed at the intersection of the exhaust air path and the air supply air path, so that in the cold winter, the cold air introduced from the outside will be pre-heated by the hot air discharged from the room before being sent into the room. So that people in the room don't feel uncomfortable. A filter element is usually installed on the air supply air path, which is mainly used to filter the dust carried in the outdoor air. When the ambient temperature is extremely low, the fresh air supply channel can also be closed, and the internal circulation mode is adopted, that is, the indoor air is controlled to enter the ventilation equipment, and then discharged into the room after being filtered. In this way, it is necessary to design a damper to control the opening and closing of the internal circulation air duct.

Utility model content

The purpose of the utility model is to provide a damper, which can be installed in the ventilation equipment to open or close the internal circulation air duct.

The purpose of the utility model is also to provide a ventilation device using the damper mentioned above.

To achieve one of the above objects, the utility model provides an air valve, which includes an upright frame defining a vent, a wind plate that rotates around a pivot fixed on the frame to open or close the vent, and a wind plate that cooperates with the pivot to drive the motor to rotate the fan. The air valve also includes a switch with a button arranged on the frame, and a limit projection fixedly arranged on the pivot and extending radially, wherein the limit projection presses against the above-mentioned button to trigger the switch.

In some embodiments, the wind plate is driven by a motor to rotate between an open position for fully opening the air vent and a closed position for completely closing the air vent, and when the wind plate rotates to the closed position, the limiting protrusion reaches the above-mentioned specific position.

In some embodiments, the angle between the closed position and the open position of the wind flap is a right angle.

In some embodiments, the pivot is located near the bottom of the frame and extends longitudinally.

In some embodiments, a motor compartment is provided at the longitudinal end of the frame close to the pivot, and the above-mentioned motors, switches, and limit projections are all accommodated in the motor compartment.

In some embodiments, the wind plate is formed with a notch at a position close to the motor compartment.

To achieve the above another objective, the utility model also provides a ventilation device, which includes a body, an air supply outlet and an exhaust inlet provided on the body, and an air duct formed in the body. The ventilation device also includes a damper as described above arranged in the air duct to open or close the air duct.

In some embodiments, the air duct communicates with the supply air outlet and the exhaust air inlet.

In some embodiments, a heat exchanger is also provided in the air duct.

In some embodiments, the bottom of the body is provided with a groove for receiving the wind board when the wind board is rotated to a position close to the bottom of the body.

Compared with the prior art, the beneficial effect of the utility model is that the opening or closing of the channel can be effectively sensed by setting the limit bump and the switch and the cooperation between the two, so as to realize corresponding control.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. The drawings of the utility model are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is a three-dimensional schematic view of the ventilator of the present utility model in a specific embodiment;

Fig. 2 is a partial three-dimensional exploded view of the ventilation device shown in Fig. 1, wherein the bottom cover and the bottom plate of the body are disassembled;

Fig. 3 is a partial perspective exploded view of the ventilation device with the bottom cover and body bottom plate removed as shown in Fig. 2, wherein the air valve is disassembled from the body;

Fig. 4 is a three-dimensional exploded schematic diagram of the damper shown in Fig. 3;

Fig. 5 is a schematic perspective view of the air valve shown in Fig. 4, wherein the side plate and the motor of the motor compartment are removed to show the internal structure, and the air plate of the air valve is in the closed position;

Fig. 6 is similar to Fig. 5, wherein the air plate of the damper is in the open position;

Fig. 7 is a partial cross-sectional schematic view of the air valve shown in Fig. 6 installed in the ventilation device.

Detailed ways

The utility model will be described in detail below in conjunction with various embodiments shown in the accompanying drawings. However, these embodiments do not limit the present utility model, and the structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present utility model.

Referring to FIGS. 1 to 3 , in some specific implementations, the ventilation device 100 may be installed in the space above the indoor ceiling. The ventilation device 100 may be a total heating ventilation device, which includes a casing extending longitudinally, and several air outlet pipes arranged at both longitudinal ends of the casing. These several tuyere pipes include an air supply inlet 102 for entering the outdoor air and an exhaust outlet 101 for indoor air exhausting at one longitudinal end of the casing, and a useful air outlet 101 at the other longitudinal end of the casing. There is an exhaust inlet 104 for indoor air to enter, and an air supply outlet 103 for outdoor air to discharge.

In some embodiments, the housing includes a foam body, and an upper cover and a bottom cover 14 respectively covering the top and bottom of the foam body. The body includes a main body 11, a top plate and a bottom plate 12, all of which can be made of foamed plastic, such as expanded polypropylene (EPP for short), which has light specific gravity, good elasticity, shock resistance, compression resistance, deformation High recovery rate, insulation, heat resistance and other characteristics. An air duct is defined in the body, including an air supply passage connecting the air supply inlet 102 and the air supply outlet 103 , and an exhaust passage connecting the exhaust inlet 104 and the exhaust outlet 101 . A heat exchange component 20 is also arranged at the intersection of the air supply passage and the exhaust passage, so that the external air introduced from the outside through the air supply passage and the indoor air discharged from the room through the exhaust passage are in the heat exchange member. Contact heat exchange, so that the outside air is heated and supplied into the room, which will not bring discomfort to the user in the cold winter. The air duct also includes an internal circulation passage 13 connecting the air supply outlet 103 and the exhaust inlet 104 , so that indoor air enters the ventilation device from the exhaust inlet 104 and returns to the room through the air supply outlet 103 . A filter element is usually provided in the ventilator, so that when the ambient temperature is extremely low, the air supply inlet 102 can be closed, and the indoor air can be filtered through the internal circulation passage 13 . As shown in Fig. 2, Fig. 3 and Fig. 7, the main part 11 of the body is provided with a slot 111 on the side wall of the internal circulation passage, and a damper 30 can be snapped into the slot 111 vertically, so that it can pass The operation of the damper 30 is controlled to open or close the internal circulation passage 13 .

As shown in FIGS. 4 to 6 , the air valve 30 includes an upright frame 31 and an air plate 36 pivotally connected to the frame. In some embodiments, the frame 31 is in the shape of a rectangular parallelepiped extending lengthwise, and a vent 313 is defined therein. The wind plate 36 rotates around the pivot 32 fixed on the frame to open or close the vent 313 . The pivot 32 can be integrally formed with the wind plate 36 , it is disposed near the bottom of the frame 31 and extends longitudinally, and its longitudinal end 321 extends into the corresponding receiving opening 312 on the frame. A limit projection 33 is fixedly arranged on the pivot 32, preferably, the limit projection 33 is arranged on the other longitudinal end of the pivot 32, and has a protruding portion 331 extending radially along the pivot, which can be Wind board 36 rotates synchronously.

The air valve 30 also includes a motor 35 that cooperates with the pivot 32 to drive the air plate 36 to rotate, and a switch 34 with a button 341 disposed on the frame. In some embodiments, a motor compartment 311 is provided at one longitudinal end of the frame 30 close to the pivot 32 , such as the end where the limiting protrusion 33 is located. The motor compartment is composed of an arc-shaped cover plate and a pair of side plates, and a receiving space is defined therein to accommodate the above-mentioned motor 35 , switch 34 , and limit projection 33 . Correspondingly, the wind plate 36 is formed with a notch 361 at a position close to the motor compartment 311 to avoid interference with the motor compartment 311 during rotation. Due to the asymmetric structure of the damper, it is not easy to make mistakes when assembling the damper 20 into the body during production or maintenance.

The motor 35 can be a stepping motor, and both it and the switch 34 are electrically connected to a controller (not shown), such as a control circuit board, so as to be controlled by the controller. As shown in FIGS. 5 to 7 , the wind plate 36 can be driven by the motor 35 to rotate between two limit positions, that is, the open position (as shown in FIGS. 6 and 7 ) in which the vent 313 is fully opened and the vent 313 is fully opened. The fully closed closed position (as shown in Figure 5). In some embodiments, the angle between the closed position and the open position of the wind plate 36 is a right angle. As shown in Figure 5, when the wind plate 36 rotates to the closed position, the limit projection 33 rotates to a specific position synchronously with the wind plate, so that its protruding part 331 presses the button 341 to trigger the switch 34, so that the controller receives To know the corresponding signal to know that the internal circulation passage 13 is completely closed. When the internal circulation path is closed, the controller can control the motor (not shown) at the air supply inlet 102 to run to start the fresh air supply function. And when the wind plate 36 leaves the closed position, that is, when the limit protrusion 33 is disengaged from the switch button 341, it means that the internal circulation function is turned on, and the exhaust fan (not shown) is controlled to run so that the indoor air passes through the exhaust inlet. 104 enters the equipment, and returns to the room through the air supply outlet 103, thereby realizing the internal circulation function. Therefore, the opening or closing of the channel can be effectively sensed by setting the limit bump and the switch and the cooperation between the two, so as to realize corresponding control. As shown in FIG. 7 , the bottom plate 12 of the body is provided with a groove 121 for accommodating the wind plate 36 in the groove 121 when the wind plate 36 is rotated to a position close to the bottom of the body, such as an open position, thereby reducing wind resistance.

In the description of the above-mentioned embodiments in the present disclosure, "longitudinal", "transverse", "axial", "radial", "circumferential", "horizontal", "vertical", "clockwise", "counterclockwise" The directions or positional relationships indicated by "hour hand", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "back" are based on the drawings The orientation or positional relationship shown is only for the convenience of description and simplification of description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the invention.

In the above description, the meanings of "several", "plurality" and similar terms are at least two, such as two, three, etc., unless otherwise specifically defined. In the above disclosure, the terms "first", "second" and so on are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, references to "first", "second", etc. features may explicitly or implicitly include at least one of such features. In the above description, the meanings of "several", "plurality" and similar terms are at least two, such as two, three, etc., unless otherwise specifically defined.

In the above disclosure, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, Or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the above disclosure, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first and second features pass through an intermediary indirect contact. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature. "Below", "beneath" and "under" the first feature may mean that the first feature is directly below or obliquely below the second feature, or it just means that the first feature is less horizontally than the second feature.

It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. Blast gate, its characterized in that: the damper includes an upright frame defining a vent opening, a damper rotatable about a pivot fixed to the frame to open or close the vent opening, and a motor cooperating with the pivot to drive the damper to rotate; the air valve also comprises a switch with a button and a limiting lug, wherein the switch is arranged on the frame, the switch is provided with the button, the limiting lug is fixedly arranged on the pivot and extends in the radial direction, and when the limiting lug synchronously rotates to a specific position along with the air plate, the limiting lug presses the button to trigger the switch.

2. The damper of claim 1, wherein: the damper is rotated by a motor between an open position in which the vent is fully opened and a closed position in which the vent is fully closed, and the stopper projection reaches the specific position when the damper is rotated to the closed position.

3. The damper of claim 2, wherein: the included angle between the closed position and the open position of the air plate is a right angle.

4. The damper of claim 1, wherein: the pivot is disposed proximate the bottom of the frame and extends in a longitudinal direction.

5. The damper of claim 4, wherein: a motor bin is arranged at one longitudinal end, close to the pivot, in the frame, and the motor, the switch and the limiting lug are all accommodated in the motor bin.

6. The damper of claim 5, wherein: the aerofoil is formed with a notch at a position close to the motor compartment.

7. Ventilation equipment, its characterized in that: the ventilation equipment comprises a body, an air supply outlet and an air exhaust inlet which are arranged on the body, and an air channel formed in the body; the ventilation apparatus further comprises a damper according to any one of claims 1 to 6 provided within the duct to open or close the duct.

8. A ventilation device according to claim 7, characterized in that: the air duct is communicated with the air supply outlet and the exhaust inlet.

9. A ventilation device according to claim 7, characterized in that: and a heat exchanger is also arranged in the air duct.

10. A ventilation device according to claim 7, characterized in that: the bottom of the body is provided with a groove so as to accommodate the wind plate when the wind plate rotates to a position close to the bottom of the body.

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