A filter dust coverage ratio testing device and an air conditioner

Abstract

This utility model relates to a filter dust coverage ratio detection mechanism and an air conditioner, comprising: a housing, the housing including an air vent, a support frame connected to the edge of the air vent, and the support frame having a receiving space; a emitting assembly including a first connecting member, an emitting member, and a driving member, the first connecting member being hinged to the support frame, the output end of the driving member being connected to the first connecting member, the emitting member being connected to the first connecting member, the emitting end of the emitting member being able to face the air vent, and the emitting member being able to be located within the receiving space; an air vent cover connected to the housing, the air vent cover including multiple connecting rods, adjacent connecting rods forming a gas flow channel; a filter element located between the housing and the air vent cover; and a receiving member connected to the connecting rods and located on the side close to the filter element. This utility model, a filter dust coverage ratio detection mechanism and an air conditioner, can prevent a large amount of dust from settling on the emitting end of the emitting member.

Description

Technical Field

[0001] This utility model relates to the technical field of testing institutions, and in particular to a filter dust coverage ratio testing institution and an air conditioner. Background Technology

[0002] The filter in a household air conditioner is used to prevent dust from entering the evaporator. Dust accumulates on the filter whether the air conditioner is running or off. Currently, the proportion of dust covering the filter is primarily determined using infrared light. Specifically, when infrared light emitted by an infrared emitter passes through a dust-covered filter, the intensity of the infrared light decreases as the density of the dust increases. Therefore, the proportion of dust covering the filter can be estimated by measuring the intensity of the infrared light after it passes through the filter. Currently, the infrared emitter is usually fixedly connected to the air conditioner casing. Because some small dust particles can also pass through the filter, dust accumulates on the emitting end of the infrared emitter. Over time, this leads to a large amount of dust settling on the emitting end, affecting the accuracy of the dust coverage measurement. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a filter dust coverage ratio detection mechanism and an air conditioner, which can prevent a large amount of dust from falling on the emitting end of the transmitter.

[0004] To solve the above-mentioned technical problems, this utility model provides a filter dust coverage ratio detection mechanism, comprising: a housing, the housing including an air vent, a support frame connected to the edge of the air vent, and the support frame having an accommodating space; a emitting assembly including a first connector, an emitting element, and a driving element, the first connector being hinged to the support frame, the output end of the driving element being connected to the first connector, the emitting element being connected to the first connector, the emitting end of the emitting element being able to face the air vent, and the emitting element being able to be located within the accommodating space; an air vent cover connected to the housing, the air vent cover including multiple connecting rods, with adjacent connecting rods forming a gas flow channel; a filter element located between the housing and the air vent cover; and a receiving element connected to the connecting rods and located on the side close to the filter element.

[0005] In one embodiment of the present invention, the accommodating space is located on the side of the support frame away from the vent cover, and the first connecting member is hinged to the end of the support frame away from the vent cover.

[0006] In one embodiment of the present invention, the launching assembly further includes a connecting seat, the connecting seat being connected to the support frame, the first connecting member being hinged to the connecting seat, and the driving member being connected to the housing.

[0007] In one embodiment of the present invention, the launching assembly further includes a second connector, the first connector has a groove, one end of the second connector is located in the groove and is hinged to the side wall of the groove, and the launching assembly is connected to the second connector.

[0008] In one embodiment of the present invention, the second connector is slidably connected to a connecting plate, and the transmitter is connected to the connecting plate.

[0009] In one embodiment of the present invention, the support frame is provided with a through hole, and the line connecting the receiving end of at least one receiver and the transmitting end of the transmitter passes through the through hole.

[0010] In one embodiment of this utility model, the connecting rod is connected to a plurality of receivers arranged at equal intervals.

[0011] In one embodiment of the present invention, the housing is further provided with a bayonet, the bayonet is located at the edge of the air vent, and the edge of the air vent cover is provided with a first locking block, the first locking block engaging with the bayonet.

[0012] In one embodiment of this utility model, the edge of the vent cover is further provided with a second locking block, the edge of the vent is provided with a protrusion, the second locking block is provided with a locking groove, and the protrusion engages with the locking groove.

[0013] This utility model also provides an air conditioner, including the above-mentioned filter dust coverage ratio detection mechanism.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0015] The present invention discloses a filter dust coverage ratio detection mechanism and air conditioner. A driving component rotates a first connecting component, which in turn rotates a transmitting component, allowing the transmitting component to enter or leave the receiving space of the support frame. When it is necessary to detect the dust coverage ratio on the filter, the transmitting component can move outside the receiving space and emit infrared light to complete the detection. When it is not necessary to detect the dust coverage ratio on the filter, the transmitting component can remain within the receiving space, thus preventing dust from falling onto the transmitting end of the transmitting component. This prevents a large amount of dust from settling on the transmitting end of the transmitting component, allowing the transmitting component to maintain the same infrared light intensity for a long time. The detection of the dust coverage ratio on the filter can maintain high accuracy for an extended period. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1This is a schematic diagram of the structure of a filter dust coverage ratio detection mechanism according to this utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of the exploded structure;

[0019] Figure 3 This is a schematic diagram of the shell structure;

[0020] Figure 4 yes Figure 3 A magnified view of a portion of position A in the middle;

[0021] Figure 5 yes Figure 3 A structural diagram from another angle;

[0022] Figure 6 yes Figure 5 A magnified view of a portion of position B in the middle;

[0023] Figure 7 This is a schematic diagram of the structure of the bottom side of the air vent cover;

[0024] Figure 8 yes Figure 7 A magnified view of the area at position C in the middle;

[0025] Figure 9 This is a schematic diagram of the structure on the top side of the air vent cover;

[0026] Figure 10 yes Figure 9 A magnified view of the area at position D.

[0027] Explanation of reference numerals in the accompanying drawings: 1. Housing; 2. Exhaust cover; 3. Filter; 4. Transmitter assembly; 5. Receiver; 11. Exhaust port; 12. Support frame; 13. Accommodation space; 14. Through hole; 15. Protrusion; 16. Bayonet; 21. Connecting rod; 22. First locking block; 23. Second locking block; 24. Mounting groove; 25. Slot; 41. First connector; 42. Second connector; 43. Transmitter; 44. Drive unit; 45. Connecting seat; 46. Groove; 421. Connecting plate. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figures 1 to 4As shown, a filter dust coverage ratio detection mechanism of this utility model includes: a housing 1, the housing 1 including an air outlet 11, the edge of the air outlet 11 being connected to a support frame 12, the support frame 12 having a receiving space 13; a emitting assembly 4, including a first connecting member 41, an emitting member 43 and a driving member 44, the first connecting member 41 being hinged to the support frame 12, the output end of the driving member 44 being connected to the first connecting member 41, the emitting member 43 being connected to the first connecting member 41, the emitting end of the emitting member 43 being able to face the air outlet 11, and the emitting member 43 being able to be located within the receiving space 13; an air outlet cover 2, connected to the housing 1, the air outlet cover 2 including a plurality of connecting rods 21, adjacent connecting rods 21 forming a gas flow channel; a filter element 3, the filter element 3 being located between the housing 1 and the air outlet cover 2; and a receiving member 5, the receiving member 5 being connected to the connecting rods 21 and close to the side of the filter element 3.

[0030] In this embodiment, a filter dust coverage ratio detection mechanism is used. When it is necessary to detect the dust coverage ratio on the filter element 3, the driving member 44 drives the first connecting member 41 to rotate, causing the emitting member 43 to leave the receiving space 13 of the support frame 12 until the emitting member 43 moves to the infrared light emission position. Then, the emitting member 43 emits infrared light, and the receiving member 5 receives the infrared light passing through the filter element 3, thereby completing the detection of the dust coverage ratio on the filter element 3. After the detection is completed, the driving member 44 drives the first connecting member 41 to rotate until the emitting member 43 is located in the receiving space 13. The first connecting member 41 is rotated by the driving member 44, which in turn drives the transmitter 43 to rotate. This allows the transmitter 43 to enter or leave the receiving space 13 of the support frame 12. When it is necessary to detect the dust coverage ratio on the filter 3, the transmitter 43 can move to the outside of the receiving space 13 and emit infrared light to complete the detection. When it is not necessary to detect the dust coverage ratio on the filter 3, the transmitter 43 can be located inside the receiving space 13 to prevent dust from falling onto the transmitting end of the transmitter 43. This prevents a large amount of dust from falling onto the transmitting end of the transmitter 43, allowing the transmitter 43 to maintain the same infrared light intensity for a long time. The detection of the dust coverage ratio on the filter 3 can maintain high accuracy for a long time.

[0031] Reference Figure 3 and Figure 4As shown, the housing 1 includes an air vent 11. When the filter dust coverage ratio detection mechanism is used in an air conditioner, the air vent 11 allows air to flow during air conditioner operation. A support frame 12 is connected to the edge of the air vent 11, and the support frame 12 can be considered a reinforcing rib of the housing 1. The two ends of the support frame 12 are respectively connected to opposite edges of the air vent 11, thereby improving the overall strength of the housing 1 and preventing deformation of the air vent 11. In this embodiment, three parallel support frames 12 are connected to the edge of the air vent 11. Different numbers of support frames 12 can be provided depending on the size of the air vent 11. The support frame 12 has a receiving space 13 for accommodating the emitter 43.

[0032] Reference Figure 2 As shown, the filter element 3 is located at the air inlet 11 of the housing 1. The filter element 3 can be regarded as a filter screen. The filter element 3 can completely cover the air inlet 11. The filter element 3 abuts against the support frame 12, and the support frame 12 has a supporting function for the filter element 3.

[0033] The vent cover 2 is used to fix the filter element 3. The vent cover 2 is connected to the housing 1, and the filter element 3 is located between the housing 1 and the vent cover 2, so that the filter element 3 is clamped by the support frame 12 and the vent cover 2. The vent cover 2 includes multiple parallel connecting rods 21, and the adjacent connecting rods 21 form a gas flow channel. When the filter dust coverage ratio detection mechanism is used on the air conditioner, the external gas passes through the space between the connecting rods 21, the filter element 3, and the vent 11 in sequence before entering the air conditioner. The vent cover 2 is made of a material that can be elastically deformed, and the entire vent cover 2 can be bent.

[0034] Reference Figure 5 and Figure 6 As shown, the transmitting assembly 4 includes a first connector 41, a transmitter 43, and a drive 44. The transmitter 43 can be considered as an infrared light emitter, and the drive 44 can be considered as a rotary motor. The first connector 41 is hinged to the support frame 12, and the output end of the drive 44 is connected to the first connector 41. The transmitter 43 is connected to the first connector 41, thereby enabling the drive 44 to drive the first connector 41 to rotate, which in turn drives the transmitter 43 to rotate. Through the rotation of the transmitter 43, when in the working state, the transmitting end of the transmitter 43 faces the air vent 11; when not in the working state, the transmitter 43 is located within the receiving space 13. Specifically, the receiving space 13 is located on the side of the support frame 12 away from the air vent cover 2. The first connector 41 is hinged to the end of the support frame 12 away from the air vent cover 2. When the transmitter 43 is located within the receiving space 13, the support frame 12 can block dust, preventing dust from falling onto the transmitting end of the transmitter 43.

[0035] The launching assembly 4 also includes a connecting seat 45, which is connected to the end of the support frame 12. The first connecting member 41 is hinged to the connecting seat 45, that is, the first connecting member 41 is hinged to the support frame 12 through the connecting seat 45. The driving member 44 is connected to the housing 1, and the output end of the driving member 44 is connected to the hinged position of the first connecting member 41, so that the driving member 44 can drive the first connecting member 41 to rotate.

[0036] The transmitter 43 also includes a second connector 42. A groove 46 is provided on the side wall of the first connector 41 at the end away from the support frame 12. One end of the second connector 42 is located within the groove 46 and hinged to the side wall of the groove 46. The transmitter 43 is connected to the end of the second connector 42 away from the first connector 41, meaning the transmitter 43 is connected to the first connector 41 via the second connector 42. Specifically, a bolt passes through the hinged position of the second connector 42 and the first connector 41, i.e., the bolt passes through both the first and second connectors. A nut is threaded onto the end of the bolt. When the nut is not tightened, the first connector 41 and the second connector 42 can rotate relative to each other, thus hinged. After the position of the second connector 42 is adjusted, the nut is tightened to fix the second connector 42 relative to the first connector 41. The position of the transmitter 43 can be adjusted so that the emitting end of the transmitter 43 faces the filter element 3. Preferably, the second connecting member 42 is slidably connected to the connecting plate 421, and the launching member 43 is connected to the connecting plate 421. That is, the launching member 43 is connected to the second connecting member 42 through the connecting plate 421. The connecting plate 421 is provided with a first threaded hole, and the side wall of the second connecting member 42 is provided with a plurality of second threaded holes along the moving direction of the connecting plate 421. The first threaded hole is connected to the second threaded hole by a bolt. By connecting the first threaded hole to different second threaded holes, the length of the connecting plate 421 protruding from the second connecting member 42 can be adjusted, that is, the position of the launching member 43 can be adjusted.

[0037] Reference Figure 7 and Figure 8As shown, receiver 5 is used to receive infrared light emitted by transmitter 43, and receiver 5 can be regarded as an infrared light receiver. Receiver 5 is connected to the connecting rod 21 and is located near the filter 3. Specifically, the connecting rod 21 has a mounting groove 24 on the side near the filter 3. Receiver 5 is connected to mounting groove 24, so that the infrared light emitted by transmitter 43 can be received by receiver 5 after passing through filter 3. Both receiver 5 and transmitter 43 are connected to the controller. Receiver 5 converts the light signal into an electrical signal. Through the signal conditioning circuit in the controller, the current signal received by the receiver is amplified, and ambient light interference is filtered out. Then, through the analog-to-digital converter in the controller, the analog current signal is converted into a digital quantity. Finally, the controller processes the digital signal and calculates the dust coverage ratio on filter 3. Preferably, the controller sets a threshold for the dust coverage ratio on filter 3. When the dust coverage ratio on filter 3 exceeds the threshold, the controller issues a warning signal. Preferably, each of the multiple connecting rods 21 is connected to multiple receivers 5 arranged at equal intervals, thereby enabling the detection of the dust coverage ratio at multiple locations on the filter element 3 and improving the accuracy of the detection.

[0038] Reference Figure 6 As shown, preferably, the support frame 12 is provided with a through hole 14, and the line connecting the receiving end of at least one receiver 5 and the transmitting end of the transmitter 43 passes through the through hole 14. Specifically, when the transmitter 43 is in the working position, the infrared light emitted by the transmitter 43 can pass through the through hole 14 and be received by the receiver 5 after passing through the filter 3, so that the dust coverage ratio can also be detected at the position on the filter 3 corresponding to the support frame 12, thereby improving the accuracy of detection.

[0039] Reference Figure 5 and Figure 8 As shown, the housing 1 is also provided with a plurality of slots 16. The slots 16 are located on the edge of the air vent 11. The edge of the air vent cover 2 is provided with a first locking block 22 corresponding to the position of the slots 16. The first locking block 22 can be inserted into the slots 16 and engaged with the slots 16, thereby fixing one side of the air vent cover 2 relative to the housing 1.

[0040] Reference Figure 4 and Figure 10 As shown, the edge of the vent cover 2 is also provided with a second locking block 23. The first locking block 22 and the second locking block 23 are arranged opposite to each other, and the second locking block 23 abuts against the edge of the vent 11, thereby making the vent cover 2 as a whole snap into the housing 1. Specifically, the edge of the vent 11 is also provided with a protrusion 15, which is arranged opposite to the latch 16. The second locking block 23 is provided with a latching groove 25, and the protrusion 15 snaps into the latching groove 25, thereby making the snapping between the vent cover 2 and the housing 1 more stable. By bending the vent cover 2, the first locking block 22 can be inserted into the latch 16 and snap into the latch 16, while the protrusion 15 snaps into the latching groove 25, thereby making the vent cover 2 as a whole snap into the housing 1.

[0041] When in use, the transmitter 43 is located in the receiving space 13 when not in operation. When it is necessary to detect the dust coverage ratio on the filter 3, the drive 44 drives the first connector 41 to rotate, causing the transmitter 43 to leave the receiving space 13 of the support frame 12 until the transmitter 43 moves to the infrared light emission position. Then the transmitter 43 emits infrared light, and the receiver 5 receives the infrared light passing through the filter 3. The controller completes the detection of the dust coverage ratio on the filter 3. After the detection is completed, the drive 44 drives the first connector 41 to rotate until the transmitter 43 is located in the receiving space 13.

[0042] This utility model also provides an air conditioner, including the above-mentioned filter dust coverage ratio detection mechanism.

[0043] This utility model discloses a filter dust coverage ratio detection mechanism and air conditioner. The first connecting member 41 is rotated by the driving member 44, which in turn drives the emitting member 43 to rotate. This allows the emitting member 43 to enter or leave the receiving space 13 of the support frame 12. When it is necessary to detect the dust coverage ratio on the filter 3, the emitting member 43 can move to the outside of the receiving space 13 and emit infrared light to complete the detection. When it is not necessary to detect the dust coverage ratio on the filter 3, the emitting member 43 can be located in the receiving space 13 to prevent dust from falling onto the emitting end of the emitting member 43. This prevents a large amount of dust from falling onto the emitting end of the emitting member 43, allowing the emitting member 43 to maintain the same infrared light intensity for a long time. The detection of the dust coverage ratio on the filter 3 can maintain high accuracy for a long time.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A filter dust coverage ratio detection mechanism characterized by comprising: include: The housing includes an air vent, and a support frame is connected to the edge of the air vent, the support frame being provided with a receiving space; The launching assembly includes a first connector, a launching element, and a driving element. The first connector is hinged to the support frame. The output end of the driving element is connected to the first connector. The launching element is connected to the first connector. The launching end of the launching element can face the air vent. The launching element can be located within the receiving space. A vent cover is connected to the housing. The vent cover includes multiple connecting rods, and adjacent connecting rods form a channel for gas flow. A filter element, wherein the filter element is located between the housing and the vent cover; A receiver is connected to the connecting rod and is located on the side near the filter.

2. The screen dust coverage ratio detection mechanism according to claim 1, characterized by: The accommodating space is located on the side of the support frame away from the vent cover, and the first connector is hinged to the end of the support frame away from the vent cover.

3. The filter dust coverage ratio detection mechanism according to claim 1, characterized in that: The launching assembly further includes a connecting base connected to the support frame, the first connecting member being hinged to the connecting base, and the driving member being connected to the housing.

4. The filter dust coverage ratio detection mechanism according to claim 1, characterized in that: The launching assembly further includes a second connector. The first connector has a groove, and one end of the second connector is located in the groove and hinged to the side wall of the groove. The launching assembly is connected to the second connector.

5. The filter dust coverage ratio detection mechanism according to claim 4, characterized in that: The second connector is slidably connected to a connecting plate, and the transmitter is connected to the connecting plate.

6. The filter dust coverage ratio detection mechanism according to claim 1, characterized in that: The support frame is provided with a through hole, and the line connecting the receiving end of at least one receiver and the transmitting end of the transmitter passes through the through hole.

7. The filter dust coverage ratio detection mechanism according to claim 1, characterized in that: The connecting rod is connected to multiple receivers that are equidistantly arranged.

8. The filter dust coverage ratio detection mechanism according to claim 1, characterized in that: The housing is also provided with a latch, which is located on the edge of the air vent. The edge of the air vent cover is provided with a first latch, which engages with the latch.

9. The filter dust coverage ratio detection mechanism according to claim 1, characterized in that: The edge of the vent cover is also provided with a second locking block, and the edge of the vent is provided with a protrusion. The second locking block is provided with a locking groove, and the protrusion engages with the locking groove.

10. An air conditioner, characterized in that, Includes the filter dust coverage ratio testing mechanism as described in any one of claims 1-9.

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