Intercepting device for auxiliary air opening of central air conditioner

Abstract

The invention relates to a filtering device, in particular to a central air conditioner auxiliary air opening intercepting device which comprises a nesting frame, a sliding groove, a connecting frame, a first motor, a sliding block, a guide sleeve, a filter screen, a screen frame, an elastic piece and the like. Sliding grooves are formed in the inner walls of the left side and the right side of the nesting frame, sliding blocks are connected into the grooves in a sliding mode, a guide sleeve with a guide groove is connected between the sliding blocks, the guide sleeve is rotationally sleeved with an upper screen frame and a lower screen frame, filter screens are installed in the screen frames, and an elastic piece is connected between the upper screen frame and the lower screen frame. The first motor is automatically controlled through the sensor assembly to adjust the upper filter screen and the lower filter screen to be unfolded, so that dust from air of a fan of the indoor unit is adaptively intercepted, and the exhaust effect and the air quality are improved; and the second motor gradually controls the dust suction pipe to move back and forth on the surface of the filter screen and suck dust, so that the filter screen is cleaned.

Description

Technical Field

[0001] The invention relates to a filtering device, in particular to an auxiliary air outlet intercepting device for a central air conditioner. Background Art

[0002] With people's pursuit of quality of life and attention to energy conservation and environmental protection, central air-conditioning systems are being used more and more widely in buildings and facilities. For example, central air-conditioning has been used in many places such as shopping malls, office buildings and even residential houses. People have gradually become accustomed to the convenience and comfort brought by air-conditioning.

[0003] The indoor unit of the existing central air conditioner is generally embedded for aesthetics. An air outlet is set on the indoor unit, and the air volume is delivered by the fan. If a filter device is not installed at the air outlet, long-term use may easily cause some dust in the air to be directly discharged into the room, endangering human health. After the filter is installed at the air outlet, long-term use may easily cause the filter to be blocked by dust, thereby affecting the exhaust effect. How to improve the exhaust effect of the fan of the indoor unit of the central air conditioner is a problem that needs to be solved urgently. Summary of the invention

[0004] In view of the above problems, the present invention provides a central air conditioner auxiliary air outlet intercepting device, which improves the exhaust effect of the indoor unit fan of the air conditioner and maintains a high air quality by intercepting dust in the incoming air of the indoor unit fan and cleaning the filter.

[0005] The technical solution of the present invention is: an auxiliary air outlet intercepting device of a central air conditioner, comprising a nesting frame for being nested and connected to an indoor unit casing, and also comprising a connecting frame, a first motor, an air guide plate, a slider, a guide sleeve, a filter screen, a mesh frame, an elastic sheet, a rotating shaft, a gear and a rack, wherein the inner walls on the left and right sides of the nesting frame are provided with sliding grooves, the inner walls on the upper and lower sides of the nesting frame are provided with connecting frames, at least one first motor is provided on the connecting frame, the inner wall of the air inlet end of the nesting frame is provided with an air guide plate, the sliding grooves are slidably connected with sliders, a guide sleeve with a guide groove is connected between the left and right sliders, an upper and lower mesh frames are rotatably sleeved outside the guide sleeve, the width of the mesh frame is greater than or equal to half of the height of the nesting frame, a filter screen is installed in the mesh frame, an elastic sheet is connected between the upper and lower mesh frames, the output shaft of the first motor is connected with a rotating shaft, the rotating shaft is keyed with a gear, the side of the slider close to the gear is connected with a rack, and the rack is meshed with the gear for transmission.

[0006] Preferably, a sensor assembly is also included. The left and right side walls in the nesting frame are equipped with sensor assemblies near the air inlet of the air guide plate. The sensor assemblies are electrically connected to the control end of the first motor.

[0007] Preferably, the first motor is a double-headed co-directional stepping motor.

[0008] Preferably, the sensor component is at least one of a wind speed sensor and a dust sensor.

[0009] Preferably, it also includes a dust suction pump, a second motor, a reciprocating screw, a threaded sleeve, a dust suction pipe, a connecting block and an air guide pipe. The upper and lower inner walls of the nesting frame are both equipped with dust suction pumps, the dust suction pump is connected to the dust suction pipe provided with a connecting block through the air guide pipe, the dust suction pipe is close to and parallel to one side of the windward surface of the filter, the left and right inner walls of the nesting frame are equipped with a second motor, the output shaft of the second motor is fixedly connected with a reciprocating screw, the reciprocating screw is located in the guide sleeve, the reciprocating screw is threadedly connected with a threaded sleeve, the threaded sleeve is hinged to the connecting block of the dust suction pipe, and both ends of the threaded sleeve slide through the guide groove.

[0010] Preferably, it also includes a water inlet joint, a water storage pipe, a water pump, a first return water pipe, an upper water collecting pipe, a lower water collecting pipe, a water suction rope and a second return water pipe. A water storage pipe is installed in the nesting frame, one end of the water storage pipe is connected to the water inlet joint, a water pump is installed in the water storage pipe, the water pump is connected to the upper water collecting pipe through the first return water pipe, the water storage pipe is connected to the lower water collecting pipe through the second return water pipe, and a water suction rope is connected between the upper water collecting pipe and the lower water collecting pipe.

[0011] Preferably, an ultraviolet sterilization lamp is also included, and the ultraviolet sterilization lamp is installed in the nesting frame.

[0012] Preferably, the included angle between the upper and lower screen frames is less than or equal to 180 degrees.

[0013] The beneficial effects of the present invention are as follows: the present invention automatically controls the first motor, the rotating shaft and the gear rack transmission by combining the sensor component to drive the slider to slide to the left along the slide groove, and drives the guide sleeve and the mesh frame to move to the left, so that the upper and lower filters are spread out at different angles in a V-shaped angle, thereby adaptively intercepting dust from the indoor unit fan wind to improve the exhaust effect and maintain a high air quality; the second motor is controlled to drive the threaded sleeve to move back and forth along the reciprocating screw rod, so that the dust suction pipe moves back and forth along the windward surface of the filter and absorbs dust, thereby realizing the cleaning of the filter, extending the service life of the filter, and reducing the frequency of manual cleaning of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the installation of the present invention and the central air conditioner indoor unit casing; Figure 2 It is a schematic diagram of the installation position of the filter screen, the rotating shaft and the water inlet joint of the present invention; Figure 3 is a side sectional view of the present invention; Figure 4 It is a schematic structural diagram of the guide sleeve, the first motor, the air guide plate and other components of the present invention; Figure 5 It is a schematic diagram of the structure of the dust suction pump, the reciprocating screw rod and the second motor and other components of the present invention; Figure 6 It is a schematic diagram of the connection between the dust suction pipe and the threaded sleeve rod of the present invention; Figure 7 It is a cross-sectional structural diagram of the dust suction pipe and the guide sleeve of the present invention; Figure 8 It is a schematic diagram of the structure of the ultraviolet germicidal lamp of the present invention; Fig. 9 It is a schematic diagram of the structure of the water storage pipe, water pump, water suction rope and other components of the present invention.

[0015] Figure numbers: 1, nesting frame, 10, indoor unit casing, 101, slide groove, 102, connecting frame, 103, first motor, 2, air guide plate, 3, slider, 301, guide groove, 30, guide sleeve, 31, sensor assembly, 32, filter, 320, mesh frame, 33, elastic sheet, 4, rotating shaft, 41, gear, 42, rack, 5, dust suction pump, 50, second motor, 51, reciprocating screw rod, 52, threaded sleeve rod, 53, dust suction pipe, 530, connecting block, 54, air guide pipe, 6, water inlet joint, 60, water storage pipe, 61, water pump, 62, first return water pipe, 63, upper water collecting pipe, 64, lower water collecting pipe, 65, water suction rope, 66, second return water pipe, 7, ultraviolet germicidal lamp. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail in conjunction with the accompanying drawings. It is hereby stated that the directional words such as upper, lower, left, right, front, back, inside and outside that appear or will appear in the present invention are only based on the drawings of the present invention, and are not specific limitations of the present invention. The serial numbers of the parts in this article, such as: first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The terms such as connection and connection in this application include direct and indirect connection (connection) unless otherwise specified.

[0017] Embodiment 1: A central air conditioner auxiliary air outlet interception device, such as Figure 1-Figure 4As shown, it includes a nesting frame 1 for being nested and connected to the indoor unit casing 10, and also includes a connecting frame 102, a first motor 103, a slider 3, a guide sleeve 30, a filter screen 32, a screen frame 320, an elastic sheet 33, a rotating shaft 4, a gear 41 and a rack 42. The inner walls of the left and right sides of the nesting frame 1 are both provided with a slide groove 101. The inner walls of the upper and lower sides of the nesting frame 1 are provided with a connecting frame 102. At least one first motor 103 is installed on the connecting frame 102. The first motor 103 of this embodiment adopts a double-headed co-directional stepping motor. The use of the double-headed co-directional stepping motor can make the nesting frame The gears 41 and the racks 42 on both sides of 1 are synchronously driven, so that the slider 3 can slide synchronously along the slide groove 101; the slide groove 101 is slidably connected with the slider 3, and a guide sleeve 30 with a guide groove 301 is connected between the left and right sliders 3. The upper and lower net frames 320 are rotatably sleeved on the outside of the guide sleeve 30. The width of the net frame 320 is greater than or equal to half of the height of the nesting frame 1. The specific width of the net frame 320 is designed according to actual conditions. A filter 32 is installed in the net frame 320. An elastic sheet 33 is connected between the upper and lower net frames 320. The angle between the upper and lower net frames is less than equal to the height of the nesting frame 1. The length of the elastic sheet 33 is 180 degrees, and the angle between the upper and lower mesh frames 320 can be limited by setting the length of the elastic sheet 33. The longer the length of the elastic sheet 33 is, the larger the angle between the upper and lower mesh frames 320 can be. The specific length can be designed according to actual conditions. The output shaft of the first motor 103 is connected to the shaft 4, and the shaft 4 is keyed to the gear 41. The side of the slider 3 close to the gear 41 is connected to the rack 42, and the rack 42 is meshed with the gear 41 for transmission. When in use, the nesting frame 1 is first nested and connected with the indoor unit casing 10 and sealed and fixed. Initially, the elastic sheet 33 is in a compressed state, and the first motor is controlled to The motor 103 drives the rotating shaft 4 to rotate in the forward direction, thereby rotating the gear 41, and then driving the slider 3 to slide to the left along the slide groove 101 through the rack 42 meshing with it, so that the guide sleeve 30 and the screen frame 320 follow and move to the left. At this time, the screen frame 320, under the reset of the elastic sheet 33, makes the upper and lower filter screens 32 expand to a preset angle, and then stops the rotation of the first motor 103. At this time, the upper and lower filter screens 32 form a V-shaped angle, thereby intercepting dust from the wind coming from the indoor unit fan. When it is necessary to reduce the angle between the upper and lower filter screens 32, the first motor 103 can be controlled to rotate in the reverse direction.

[0018] like Figure 4 As shown, an air guide plate 2 is also included. The inner wall of the air inlet end of the nesting frame 1 is installed with the air guide plate 2. The air guide plate 2 is used to gather the incoming wind of the indoor unit casing 10 so that the V-shaped filter 32 can be used to guide the incoming air and filter it simultaneously, so that most of the dust is intercepted at the angle of the filter 32.

[0019] Embodiment 2: Based on embodiment 1, Figure 3 and Figure 4As shown, a sensor assembly 31 is also included. The sensor assembly 31 is installed at the left and right side walls of the nesting frame 1 near the air inlet of the air guide plate 2. The sensor assembly 31 is electrically connected to the control end of the first motor 103, wherein the control end of the first motor 103 can be a programmer or other control element. The sensor assembly 31 uses at least one of a dust sensor and a wind speed sensor. In this embodiment, a dust sensor is used. The dust sensor can monitor the dust in the air of the indoor unit fan. According to the dust content, a preset control parameter can be set for the first motor 103, so that The angle between the upper and lower filters 32 is automatically adjusted, and the windward angle of the filter 32 can be used to adaptively intercept the air according to the air quality, so as to achieve the effect of automatically adjusting the exhaust volume. For example, when the dust is large, the angle of the filter 32 can be increased to better intercept the dust. Otherwise, the angle of the filter 32 can be reduced. If the sensor component 31 is a wind speed sensor, the angle of the filter 32 can also be adjusted by controlling the parameters of the first motor 103. For example, when the wind speed is high, the angle can be adjusted to a larger angle to strengthen the interception, and when the wind speed is low, the angle can be adjusted to a smaller angle to weaken the interception. The specific adjustment is based on the usage.

[0020] like Figure 5-Figure 7 As shown, it also includes a dust suction pump 5, a second motor 50, a reciprocating screw 51, a threaded sleeve 52, a dust suction pipe 53, a connecting block 530 and an air guide pipe 54. The dust suction pump 5 is installed on the upper and lower inner walls of the nesting frame 1. The dust suction pump 5 is connected to the dust suction pipe 53 with a connecting block 530 through the air guide pipe 54. The dust suction pipe 53 is close to and parallel to one side of the windward surface of the filter screen 32. The inner walls of the left and right sides of the nesting frame 1 are installed with a second motor 50. The output shaft of the second motor 50 is fixedly connected to the reciprocating screw 51. The reciprocating screw 51 is located in the guide sleeve 30. A threaded sleeve 52 is threadedly connected to the reciprocating screw rod 51, and the threaded sleeve 52 is hinged to the connecting block 530 of the dust suction tube 53, and both ends of the threaded sleeve 52 slide through the guide groove 301; when the second motor 50 is started, the threaded sleeve 52 is driven to slide back and forth along the reciprocating screw rod 51 and the guide groove 301 of the guide sleeve 30, so that the dust suction tube 53 moves back and forth along the windward surface of the filter 32 and absorbs dust, thereby cleaning the filter 32, extending the service life of the filter 32, and reducing the frequency of manual cleaning of the filter 32.

[0021] like Figure 2 , Figure 8 and Fig. 9As shown, it also includes a water inlet joint 6, a water storage pipe 60, a water pump 61, a first return water pipe 62, an upper water collecting pipe 63, a lower water collecting pipe 64, a water suction rope 65 and a second return water pipe 66. The water storage pipe 60 is installed in the nesting frame 1. The water storage pipe 60 is used to store part of the water for cooling. One end of the water storage pipe 60 is connected to the water inlet joint 6. The water inlet joint 6 is connected to the air conditioning water tank. Water is added to the water storage pipe 60 through the water inlet joint 6. A water pump 61 is installed in the water storage pipe 60. The water pump 61 is connected to the upper water collecting pipe 63 through the first return water pipe 62. The water storage pipe 60 is connected to the upper water collecting pipe 63 through the first return water pipe 62. The second water return pipe 66 is connected to the lower water collecting pipe 64, and a water suction rope 65 is inserted between the upper water collecting pipe 63 and the lower water collecting pipe 64. When the water pump 61 is turned on, the water in the water storage pipe 60 can be pumped into the upper water collecting pipe 63 through the first water return pipe 62, and the water suction rope 65 absorbs the water in the upper water collecting pipe 63 and continuously diffuses it to the lower end. After the water suction rope 65 absorbs water and is soaked, it can humidify and cool the air. The lower water collecting pipe 64 partially recovers the water on the water suction rope 65, and the water in the lower water collecting pipe 64 can flow back to the water storage pipe 60 through the second water return pipe 66, thereby achieving the effect of water recycling.

[0022] like Figure 8 As shown, an ultraviolet sterilization lamp 7 is also included. The ultraviolet sterilization lamp 7 is installed in the nesting frame 1. The ultraviolet sterilization lamp 7 can sterilize the air coming from the fan to improve the cleanliness of the air.

[0023] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A central air conditioner auxiliary air outlet interception device, comprising a nesting frame (1) for being nested and connected to an indoor unit casing (10), characterized in that: It also includes a connecting frame (102), a first motor (103), an air guide plate (2), a slider (3), a guide sleeve (30), a filter screen (32), a screen frame (320), an elastic sheet (33), a rotating shaft (4), a gear (41) and a rack (42); the left and right inner walls of the nesting frame (1) are both provided with a slide groove (101); the upper and lower inner walls of the nesting frame (1) are provided with a connecting frame (102); at least one first motor (103) is provided on the connecting frame (102); the air guide plate (2) is provided on the inner wall of the air inlet end of the nesting frame (1); the slide groove (101) is slidably connected with a slider (3); the left and right sliders are provided with a slide groove (101); A guide sleeve (30) having a guide groove (301) is connected between the two parts of the nesting frame (1), the guide sleeve (30) is rotatably sleeved with two upper and lower screen frames (320), the width of the screen frame (320) is greater than or equal to half the height of the nesting frame (1), a filter screen (32) is installed in the screen frame (320), an elastic sheet (33) is connected between the two upper and lower screen frames (320), the output shaft of the first motor (103) is connected to a rotating shaft (4), the rotating shaft (4) is keyed to a gear (41), a rack (42) is connected to a side of the slider (3) close to the gear (41), and the rack (42) is meshed with the gear (41) for transmission.

2. A central air conditioning auxiliary air outlet interception device according to claim 1, characterized in that: It also includes a sensor assembly (31), wherein the sensor assembly (31) is installed on the left and right side walls of the nesting frame (1) near the air inlet of the air guide plate (2), and the sensor assembly (31) is electrically connected to the control end of the first motor (103).

3. A central air conditioning auxiliary air outlet interception device according to claim 2, characterized in that: The first motor (103) is a double-headed, same-direction stepping motor.

4. A central air conditioning auxiliary air outlet interception device according to claim 3, characterized in that: The sensor component (31) is at least one of a wind speed sensor and a dust sensor.

5. A central air conditioner auxiliary air outlet interception device according to claim 4, characterized in that: The nesting frame (1) further comprises a dust suction pump (5), a second motor (50), a reciprocating screw rod (51), a threaded sleeve rod (52), a dust suction pipe (53), a connecting block (530) and an air guide pipe (54). The dust suction pump (5) is installed on the upper and lower inner walls of the nesting frame (1). The dust suction pump (5) is connected to the dust suction pipe (53) provided with the connecting block (530) through the air guide pipe (54). The dust suction pipe (53) is close to and parallel to one side of the windward surface of the filter screen (32). A second motor (50) is installed on the inner walls of the left and right sides of the sleeve frame (1); a reciprocating screw rod (51) is fixedly connected to the output shaft of the second motor (50); the reciprocating screw rod (51) is located in the guide sleeve (30); a threaded sleeve rod (52) is threadedly connected to the reciprocating screw rod (51); the threaded sleeve rod (52) is hinged to a connecting block (530) of the dust suction pipe (53); and both ends of the threaded sleeve rod (52) slide through the guide groove (301).

6. A central air conditioner auxiliary air outlet interception device according to claim 5, characterized in that: It also comprises a water inlet joint (6), a water storage pipe (60), a water pump (61), a first water return pipe (62), an upper water collecting pipe (63), a lower water collecting pipe (64), a water suction rope (65) and a second water return pipe (66). The water storage pipe (60) is installed in the nesting frame (1). One end of the water storage pipe (60) is connected to the water inlet joint (6). The water pump (61) is installed in the water storage pipe (60). The water pump (61) is connected to the upper water collecting pipe (63) through the first water return pipe (62). The water storage pipe (60) is connected to the lower water collecting pipe (64) through the second water return pipe (66). A water suction rope (65) is connected between the upper water collecting pipe (63) and the lower water collecting pipe (64).

7. A central air conditioner auxiliary air outlet interception device according to claim 6, characterized in that: It also includes an ultraviolet sterilization lamp (7), and the ultraviolet sterilization lamp (7) is installed in the nesting frame (1).

8. A central air conditioner auxiliary air outlet interception device according to claim 7, characterized in that: The included angle between the upper and lower screen frames (320) is less than or equal to 180 degrees.

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