CN217876389U

CN217876389U - Air outlet cutoff device and air conditioner

Info

Publication number: CN217876389U
Application number: CN202221610748.XU
Authority: CN
Inventors: 黑潇
Original assignee: Midea Group Shanghai Co Ltd
Current assignee: Midea Group Shanghai Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-22
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses an air-out cut-off device and an air conditioner, wherein the air-out cut-off device comprises an air duct, a valve and an intermittent mechanism, and the intermittent mechanism drives the valve to rotate intermittently so as to realize the opening and closing of the air duct; the intermittent mechanism comprises a driving part and a driven part connected with the valve, the driven part has an intermittent state and a motion state, the valve is in a closed state in the intermittent state, and the valve is switched to an open state from the closed state and then switched to the closed state in the motion state, so that the time length of the valve in a half-open and half-closed state can be shortened, the time length of the valve in the half-open and half-closed state is increased, and the problem of poor quality of the vortex ring is solved.

Description

Air outlet cutoff device and air conditioner

Technical Field

The utility model relates to an air conditioner field, in particular to air-out cutout device and air conditioner.

Background

The existing fixed-point cold air delivery needs to realize the centralization and targeting of the cold energy fixed-point delivery in a mode of generating vortex. The vortex mainly uses the fan to continuously supply air, and the cut-off device periodically shields the air outlet to cut off the air supply. The cut-off device has various forms such as a perforated rotary disc, a ball valve and the like. The quality of the vortex air supply depends on the vortex ring forming period and the closing and opening time of the air supply outlet, the closing time is relatively long, the opening time is short, the half-open and half-closed transition state is as short as possible, and 2-3 periods per second are optimal.

The blocking schemes of the ball valve, the perforated rotary disc and the like adopt the periodic constant-speed rotation of the valve, and realize the blocking and the unblocked opening through the on-off state of the valve at different phase moments. Because the vortex ring rotates at a constant speed, the closing time is inevitably too short when the purpose of quick truncation is realized, and the quality of the vortex ring is reduced. To extend the closing time, it is inevitable to increase the diameter of the ball valve or the dial to increase the ratio of the closing time to the opening time per rotation cycle of the valve body. The increase of the diameter of the valve body causes the oversize size of the device, the compactness of the structure is reduced, and the applicable scene is limited by space. The constant-speed motion of the valve body determines that the ratio of the opening time to the closing time to the half-opening and half-closing time of the valve is fixed, the half-opening and half-closing time is relatively long, and the quality of the vortex ring is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air-out cutout device and air conditioner aims at solving the current problem that cuts the long influence vortex ring quality of device half-open half-close time.

In order to achieve the above object, the present invention provides an air-out flow cutoff device, including:

an air duct;

the valve is rotatably arranged in the air channel and has a closing state and an opening state;

the intermittent mechanism comprises a driving part and a driven part connected with the valve, wherein the driven part is provided with an intermittent state and a motion state, the valve is in a closed state in the intermittent state, and the valve is switched to an open state from the closed state and then switched to the closed state in the motion state.

In one embodiment, the follower comprises a follower gear connected to the valve; the driving part comprises a driving wheel, and the driving wheel comprises a rotatable wheel body and an arc-shaped rack arranged on the wheel body;

the driving wheel rotates to enable the arc-shaped rack to be meshed with the driven gear or separated from the driven gear.

In one embodiment, when the driving wheel drives the driven gear to rotate, the driven member is in a moving state, when the driven gear is separated from the arc-shaped rack, the driven member is in an intermittent state, and the time length of the driven member in the intermittent state is longer than that in the moving state.

In one embodiment, the valve comprises a door body arranged in the air duct and rotating shafts arranged at two ends of the valve, the door body is rotatably connected with the air duct through the rotating shafts, and the driven gear is arranged on the rotating shafts.

In one embodiment, the gear ratio of the arc-shaped rack to the driven gear is 1:2.

in one embodiment, the air outlet cutoff mechanism device further comprises a motor driving the driving member to move.

In one embodiment, a plurality of arc-shaped racks are arranged on the driving wheel, and the arc-shaped racks are arranged in a central symmetry manner.

In an embodiment, the air outlet shutoff device further includes a limiting mechanism disposed on the air duct, and the limiting mechanism is configured to limit the valve from opening the air duct due to inertia overshoot when the valve is switched from the open state to the closed state.

In one embodiment, the limiting mechanism comprises a first permanent magnet arranged close to the edge of the valve and a second permanent magnet arranged on the air duct; when the valve is closed, the first permanent magnet is close to the second permanent magnet and mutually attracted.

The utility model discloses still provide an air conditioner and include foretell air-out cutout device.

The utility model is provided with the air outlet cutoff device comprising an air duct, a valve and an intermittent mechanism, so that the intermittent mechanism drives the valve to rotate intermittently to realize the opening and closing of the air duct; the intermittent mechanism comprises a driving part and a driven part connected with the valve, the driven part has an intermittent state and a motion state, the air duct is in a closed state in the intermittent state, and the valve is switched to an open state from the closed state and then switched to the closed state in the motion state, so that the time length of the valve in a half-open and half-closed state can be shortened, the time length of the valve in a half-closed state is increased, and the problem of poor quality of the vortex ring is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an air outlet cutoff device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the embodiment of FIG. 1 at A;

fig. 3 is a schematic structural view of an intermittent mechanism according to another embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Air duct	23	Arc rack
11	Valve gate	24	Active drive plate
				12	Rotating shaft	25	Grooved pulley
21	Driving part	31	First permanent magnet
				22	Driven member	32	Second permanent magnet

The purpose of the present invention is to provide a portable electronic device, which can be easily and conveniently operated.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications such as upper, lower, left, right, front and rear \8230; \8230arereferred to in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, etc. in a certain posture, as shown in the drawings, and if the certain posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an air-out cutout device 10 refers to fig. 1 and 3, and air-out cutout device 10 includes wind channel 10, valve 11 and intermittent mechanism. The valve 11 is rotatably arranged in the air duct 10, and the valve 11 has a closed state and an open state; the intermittent mechanism comprises a driving part 21 and a driven part 22 connected with the valve 11, the driven part 22 has an intermittent state and a motion state, the air duct 10 is in a closed state in the intermittent state, and the valve 11 is switched to an open state from the closed state and then switched to the closed state in the motion state; the follower 22 is in the intermittent state for a longer period of time than in the moving state.

In this embodiment, the air duct 10 is preferably a circular duct, the valve 11 includes a door body disposed in the air duct 10, and rotating shafts 12 disposed at two ends of the valve 11, the rotating shafts 12 are rotatably connected to the air duct 10, and the door body is closed to the air duct 10 when being perpendicular to the extending direction of the duct. When the door is perpendicular to the extending direction of the duct, the air duct 10 is completely opened. The intermittent mechanism is preferably a wheel groove mechanism, and further comprises a torsion spring which is connected with the air duct 10 and the grooved wheel 25 and enables the valve 11 to keep a closed state. The driving member 21 comprises a driving dial 24 with a cylindrical pin, and the driven member 22 comprises a sheave 25, wherein the sheave 25 is fixedly connected with the rotating shaft 12. The driving plate 24 rotates to drive the grooved wheel 25 to rotate, so that the torsion spring is compressed. The torsion spring is at its maximum compression after 90 rotation of the sheave 25 and the valve 11 is switched from the closed condition to the fully open condition. After the cylindrical pin is disengaged from the sheave 25, the torsion spring rebounds to quickly restore the valve 11 to the closed state, and then the driving dial 24 continues to rotate 270 °, so that the valve 11 is kept closed all the time, and the air pressure inside the air duct 10 is increased. Therefore, the closing time of the air duct 10 is longer than the opening time, meanwhile, the time from the fully opened state to the closed state of the valve 11 can be further shortened due to the arrangement of the torsion spring, and the problem that the half-open and half-close time of the conventional cutoff device influences the quality of the vortex ring is solved.

In one embodiment, referring to fig. 1 and 2, the follower 22 comprises a driven gear connected to the valve 11; the driving part 21 comprises a driving wheel, and the driving wheel comprises a rotatable wheel body and an arc-shaped rack 23 arranged on the wheel body; the driving wheel rotates to make the arc-shaped rack 23 engaged with the driven gear or separated from the driven gear. When the driving wheel drives the driven gear to rotate, the driven part 22 is in the motion state, and when the driven gear is separated from the arc-shaped rack 23, the driven part 22 is in an intermittent state.

In this embodiment, the intermittent mechanism may be an incomplete gear mechanism, the driving member 21 is an incomplete gear, and only one segment of the arc-shaped rack 23 is disposed thereon, or a plurality of arc-shaped racks 23 may be disposed thereon. The driven member 22 is a driven gear, the driven gear is fixedly connected with the rotating shaft 12 of the valve 11, and the driven gear rotates to drive the valve 11 to rotate. The gear ratio of the arc-shaped rack 23 to the driven gear can be set to 1:4. the intermittent mechanism further comprises a torsion spring connected to the driven gear, which normally keeps the valve 11 closed. When the arc-shaped rack 23 drives the driven gear to rotate 90 degrees, the valve 11 can be completely opened. The arcuate rack 23 is then disengaged from the driven gear and the valve 11 is rapidly rotated to the closed position by the action of the spring force of the torsion spring.

In one embodiment, referring to fig. 1 and 2, the gear ratio of the arc-shaped rack 23 to the driven gear is 1:2. in the present embodiment, a torsion spring is not required, and the above gear ratio is set to 1:2, the arc-shaped rack 23 can drive the driven gear and the valve 11 to rotate 180 degrees, so that the valve 11 can rotate 90 degrees from a closed state to completely open the air duct 10, and the air duct 10 is closed after the valve continues to rotate 90 degrees, and the structure is simpler.

In an embodiment, referring to fig. 1 and 2, the valve 11 includes a door body disposed in the air duct 10, and rotating shafts 12 disposed at two ends of the valve 11, the rotating shafts 12 are rotatably connected to the air duct 10, and the driven gear is disposed on the rotating shafts 12. In this embodiment, the air duct 10 is provided with a mounting hole adapted to the rotating shaft 12, one end of the rotating shaft 12 extends out from the air duct 10, the driven member 22 is directly and fixedly mounted on the rotating shaft 12, and the driving member 21 is disposed at one side of the driven member 22. Specifically, a casing may be provided, which is disposed outside the air duct 10 and accommodates the driving member 21 and the driven member 22. A mounting shaft is rotatably arranged in the housing, and a driving member 21 is fixedly arranged on the mounting shaft and is matched with a driven member 22.

In an embodiment, referring to fig. 1 to 3, the air outlet current breaking mechanism further includes a motor for driving the driving member 21 to move. In this embodiment, the casing is further provided with an installation position for installing the motor, or the motor is directly fixed on the outer wall of the air duct 10. The central shaft of the motor can be directly used as the mounting shaft, and a gear set can be arranged between the mounting shaft and the central shaft for transmission, so that the driving piece 21 can be driven.

In an embodiment, referring to fig. 1 to 3, a plurality of arc-shaped racks 23 are disposed on the driving wheel, and each arc-shaped rack 23 is disposed in a central symmetry manner. In this embodiment, under the condition that the time length for which the valve 11 is normally closed is ensured to meet the set requirement, two or more arc-shaped racks 23 may be provided, and the radian between adjacent arc-shaped racks 23 is greater than the radian of a single arc-shaped rack 23.

In an embodiment, referring to fig. 1 to 3, the air outlet shutoff device further includes a limiting mechanism disposed on the air duct 10, and when the valve 11 is switched from the open state to the closed state, the limiting mechanism is configured to limit the valve 11 from opening the air duct 10 due to inertia. In this embodiment, when the air outlet cutoff device adopts the scheme that the torsion spring causes the valve 11 to be reset and closed, the limiting mechanism comprises a limiting protrusion arranged inside the air duct 10, the limiting protrusion and the torsion spring act together to limit the valve 11 to keep a closed state, and the limiting protrusion can be further provided with a buffer member to buffer kinetic energy generated when the valve 11 is reset. Specifically, a spring or a foam pad may be selected, and the spring and the foam pad are disposed on a surface of the limiting member contacting the valve 11. Or the valve 11 and the limiting bulge are respectively provided with a permanent magnet, and the permanent magnets have the same polarity and can also play a role in buffering. Meanwhile, in order to avoid noise caused by the collision of the two permanent magnets, buffering foam can be stuck on the butt joint surfaces of the two permanent magnets.

In one embodiment, referring to fig. 1 to 3, the limiting mechanism includes a first permanent magnet 31 disposed near an edge of the valve 11, and a second permanent magnet 32 disposed on the air duct 10; when the valve 11 closes the air duct 10, the first permanent magnet 31 is close to the second permanent magnet 32 and attracted to each other. When the gear ratio of the arc-shaped rack 23 to the driven gear is 1:2, the arc-shaped rack 23 drives the driven gear to rotate 180 degrees, so that the valve 11 is completely opened from the closed state and then closed again. Therefore, in the operating state, the valve 11 will rotate continuously in the air duct 10, and therefore the arrangement of the limiting protrusion will block the rotation of the valve 11, which is obviously not suitable for this solution, and therefore, there is no need to consider a non-contact limiting solution. In this embodiment, the valve 11 and the air duct 10 are mainly provided with permanent magnets which attract each other, when the valve 11 is closed, the first permanent magnet 31 on the valve is close to the second permanent magnet 32 on the air duct 10, and the attraction force of the two permanent magnets can overcome the inertia generated by the rotation of the valve 11, so as to ensure that the valve 11 is not opened continuously due to the inertia after being kept in a closed state.

The valve 11 automatically returns to the closed state under the action of magnetic force, so that when the driving wheel and the driven gear start to be meshed in each rotation period, the valve 11 is in the closed initial state, and the deviation in the operation of the next rotation period is avoided. That is, the magnetic force has an automatic correction function for the reset of the initial state of the valve 11 card.

In an embodiment, referring to fig. 1 to 3, the intermittent mechanism may be a slider-crank mechanism, wherein the driving member 21 is a slider, the driven member 22 is a crank, the intermittent mechanism further includes a connecting rod connecting the crank and the slider, and an electromagnetic push rod driving the slider to move, one end of the crank is fixedly connected to the rotating shaft 12 of the valve 11, the other end of the crank is hinged to the connecting rod, and the connecting rod is hinged to the slider. When the driving current is loaded to enable the electromagnetic push rod to drive the sliding block to move from the first position to the rotating shaft 12 to the second position, the crank rotates 90 degrees, the valve 11 is switched from the closed state to the fully-opened state, then the driving current reversely drives the electromagnetic push rod to drive the sliding block to return from the second position to the first position, the valve 11 is switched from the fully-opened state to the closed state, and one-time back-and-forth sliding of the sliding block within the set range achieves quick opening and quick closing of the air duct 10. The valve 11 is kept closed while the reverse driving current is continuously applied, whereby the direction and the application period of the driving current can be controlled to control the closing period and the half-open and half-close period and the full-open period of the duct 10.

The utility model discloses still provide an air conditioner, refer to fig. 1 to 3, including foretell air-out cutout device. The problem of current cut device half open half close time influence vortex ring quality is solved.

The above is only the optional embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all be in the utility model discloses a under the design, utilize the equivalent structure transform that the content of the description and the attached drawing was made, or direct/indirect application all includes in other relevant technical field the utility model discloses a patent protection is within range.

Claims

1. An air outlet flow interrupter device, comprising:

an air duct;

and the intermittent mechanism comprises a driving part and a driven part connected with the valve, the driven part is provided with an intermittent state and a motion state, the valve is in a closed state in the intermittent state, and the valve is switched to an open state from the closed state and then to the closed state in the motion state.

2. The air outlet flow interrupter device of claim 1, wherein said follower comprises a follower gear connected to said valve; the driving part comprises a driving wheel, and the driving wheel comprises a rotatable wheel body and an arc-shaped rack arranged on the wheel body;

3. The air outlet flow interrupter according to claim 2, wherein the driven gear is driven by the driving wheel to rotate, the driven member is in a moving state, the driven gear is separated from the arc-shaped rack, the driven member is in an intermittent state, and the driven member is in the intermittent state for a longer time period than the driven gear is in the moving state.

4. The air outlet flow cutoff device according to claim 3, wherein the valve comprises a door body disposed in the air duct, and rotating shafts disposed at both ends of the valve, the door body is rotatably connected to the air duct through the rotating shafts, and the driven gear is disposed on the rotating shafts.

5. The air outlet flow interrupter device of claim 2, wherein the gear ratio of said arcuate rack to said driven gear is 1:2.

6. the air outlet flow interrupter device of claim 1, further comprising a motor for driving the active member.

7. The air outlet flow cutoff device according to claim 2, wherein a plurality of arc-shaped racks are arranged on the driving wheel, and each arc-shaped rack is arranged in a central symmetry manner.

8. The air outlet flow interrupter device of claim 1, further comprising a limiting mechanism disposed on the air duct for limiting the valve from opening the air duct due to over-inertia when the valve is switched from the open state to the closed state.

9. The air outlet flow interrupter device of claim 8, wherein said limiting mechanism comprises a first permanent magnet disposed proximate to an edge of said valve and a second permanent magnet disposed on said air duct; when the valve is closed, the first permanent magnet is close to the second permanent magnet and mutually attracted.

10. An air conditioner characterized by comprising the air outlet current interruptive device according to any one of claims 1 to 9.