CN214249862U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model relates to an indoor unit of air conditioner, it includes: the air conditioner comprises a shell, wherein an air inlet is formed in the shell, and a filter screen is arranged at the air inlet; the cleaning device is used for cleaning the filter screen and collecting the dust on the filter screen in a dust collecting box; and the optical fiber sensor is provided with a light-emitting end used for emitting light to the interior of the dust collecting box and a light-receiving end used for receiving the light emitted by the light-emitting end, and the light-emitting end and the light-receiving end are respectively arranged on two opposite side parts in the dust collecting box. The light that the luminous end sent only passes the inside of whole dust collection box and just can reach the photic end, consequently, can judge how much through the sensitization value that the photic end received the dust volume in the dust collection box, be convenient for remind the user in time to clear up the dust collection box when the dust volume is more in the dust collection box, ensured that cleaning device has better cleaning effect all the time to need not the manual look over of user, labour saving and time saving.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to an indoor unit of air conditioner.

Background

After the household air conditioner is used for a long time or is not used for a long time, dust, dirt, various mold and other pollutants can be generated on the filter screen of the household air conditioner. When the air conditioner operates in such a state, the refrigerating and heating effects are influenced, and more importantly, the health of people is harmed. For this reason, many devices for cleaning the filter screen have been designed in the prior art, which can clean the dust on the filter screen and collect the dust in a dust collecting box. However, as the air conditioner is used for a longer time, more and more dust is contained in the dust box. The user cannot know the amount of dust in the dust box and thus needs to check by himself whether cleaning is necessary, so that the following two cases occur: firstly, the dust in the dust collecting box is worried about too much dust, and the inspection is time-consuming and labor-consuming for the wall-mounted air conditioner indoor unit; secondly, the user forgets to check the dust collecting box, so that the dust amount is too much, and the cleaning effect of the filter screen is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome at least one defect of prior art, and provide an air conditioning indoor unit that can be convenient for detect its interior dust volume of dust collection box.

A further object of the utility model is to improve the accuracy of dust volume testing result.

Another further object of the utility model is to be convenient for detect whether damaged the filter screen of machine in the air conditioning.

In order to achieve the above object, the utility model provides an indoor unit of air conditioner, it includes:

the air conditioner comprises a shell, wherein an air inlet is formed in the shell, and a filter screen is arranged at the air inlet;

the cleaning device is used for cleaning the filter screen and collecting the dust on the filter screen in a dust collecting box; and

the optical fiber sensor is provided with a light-emitting end used for emitting light into the dust collecting box and a light-receiving end used for receiving the light emitted by the light-emitting end, and the light-emitting end and the light-receiving end are respectively arranged on two opposite side parts in the dust collecting box.

Optionally, the light emitting end and the light receiving end are at the same level in the dust collecting box.

Optionally, the height of the light emitting end and the light receiving end in the dust collecting box is between one half and three quarters of the height of the dust collecting box.

Optionally, the indoor unit of an air conditioner further includes:

and the prompting device is used for controllably sending out prompting information for prompting cleaning of the dust collecting box when the photosensitive value received by the light receiving end is smaller than a preset threshold value.

Optionally, the prompting device includes one or more of a buzzer, a light display device or a voice output module.

Optionally, the sweeping device comprises:

the brush piece is used for cleaning the filter screen;

the vibrating piece is connected with the brush piece and is configured to controllably drive the brush piece to vibrate; and

and the driving part is directly or indirectly connected with the brush part so as to controllably drive the brush part to reciprocate along the length direction or the width direction of the filter screen.

Optionally, the number of the dust collecting boxes is one, and the dust collecting boxes are arranged at one end part of the filter screen parallel to the moving direction of the brush piece; or

The number of the dust collecting boxes is two, one optical fiber sensor is arranged in each dust collecting box, and the two dust collecting boxes are respectively arranged at two end parts, parallel to the moving direction of the brush piece, of the filter screen.

Optionally, the brush member has a base and bristles on one side of the base for contact with the filter screen; and is

And a film pressure sensor is arranged between the base body and the bristles and is used for detecting the pressure of the brush piece acting in each target area of the filter screen, which is in contact with the brush piece.

Optionally, the indoor unit of an air conditioner further includes:

and the vibration sensor is directly or indirectly connected with the brush piece or directly or indirectly connected with the vibration piece and used for detecting the vibration amplitude of the cleaning device in the direction vertical to the plane where the filter screen is located.

Optionally, the indoor unit of an air conditioner further includes:

an attachment member fixedly connected with the brush member and having a connection hole formed therein;

the driving piece is inserted into the connecting hole and is in matched connection with the connecting hole, so that the attachment piece drives the brush piece to move.

The application discloses an air conditioning indoor unit in dust collection box in special design optical fiber sensor to set up optical fiber sensor's luminous end and photic end respectively in two relative lateral parts of dust collection box, the inside that the light-emitting end sent only passes whole dust collection box can reach photic end. When the amount of the dust collected in the dust collecting box is less, the light emitted by the light emitting end is shielded by the dust less or basically not shielded by the dust, at the moment, the light receiving end can receive more light emitted by the light emitting end, and the light sensing value is larger; when the dust amount collected in the dust collecting box is large, most of light emitted by the light emitting end can be shielded by the dust, and the light receiving end can receive less light emitted by the light emitting end at the moment, so that the light sensing value is small. Therefore, the dust amount in the dust collecting box can be judged according to the photosensitive value received by the light receiving end, so that a user can be reminded of cleaning the dust collecting box in time when the dust amount in the dust collecting box is large, and the cleaning device is ensured to have a good cleaning effect all the time.

Further, this application sets up optical fiber sensor's the light-emitting end and the end that receives light at same level, can shield effectively that reflection light and refraction light produced the interference to the sensitization value that receives the end that receives to judge the dust volume in the dust box more accurately.

Further, this application has designed film pressure sensor between the base member of brush spare and the brush hair very much, acquire the pressure that brush spare was used in each target area that contacts with brush spare of filter screen through film pressure sensor, thereby be convenient for detect the filter screen damaged indirectly according to the pressure that acquires, broken through among the prior art can only judge its good traditional thought cognition of bad through directly detecting the filter screen itself, the design thinking is novel, moreover, the steam generator is simple in structure, easy realization, and the cost is lower, user experience nature is better.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a sweeping device according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a sweeping device according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the cleaning apparatus according to an embodiment of the present invention with the driving member hidden.

Detailed Description

The utility model provides an indoor set of air conditioning, figure 1 is according to the utility model discloses an embodiment's indoor set of air conditioning's schematic structure picture, the utility model discloses an indoor set of air conditioning 1 includes casing 20 and cleaning device 10. An air inlet 21 is formed in the housing 20, and a filter screen 22 is disposed at the air inlet 21 and used for filtering air entering the housing 20 through the air inlet 21. The cleaning device 10 is used for cleaning the filter screen 22 and collecting dust on the filter screen 22 in a dust collecting box 50, so as to prevent the dust on the filter screen 22 from falling to other positions inside the casing 20 or falling to the outside of the casing 20, which brings bad use experience to users.

Fig. 2 is a schematic view of a partial structure of an indoor unit of an air conditioner according to an embodiment of the present invention. In particular, the air conditioning indoor unit 1 further includes an optical fiber sensor having a light emitting end 31 for emitting light into the dust box 50 and a light receiving end 32 for receiving the light emitted from the light emitting end 31, and the light emitting end 31 and the light receiving end 32 are respectively disposed at two opposite sides in the dust box 50. Therefore, the light emitted from the light emitting end 31 can reach the light receiving end 32 only through the whole interior of the dust box 50, and the amount of dust in the dust box 50 can be detected by using the principle. Specifically, when the amount of dust collected in the dust collecting box 50 is small, the light emitted from the light emitting end 31 is shielded by the dust less or not substantially shielded, and at this time, the light receiving end 32 can receive more light emitted from the light emitting end 31, and the light sensing value is large; when the amount of dust collected in the dust collecting box 50 is large, most of the light emitted from the light emitting end 31 is blocked by the dust, and the light receiving end 32 receives less light emitted from the light emitting end 31, so that the light sensing value is small. Therefore, the amount of dust in the dust collecting box 50 can be judged according to the photosensitive value received by the light receiving end 32, so that a user can be reminded to clean the dust collecting box 50 in time when the amount of dust in the dust collecting box 50 is large, and the cleaning device 10 is ensured to have a good cleaning effect all the time, and further the filter screen 22 is ensured to have a good filtering and purifying effect all the time.

In some embodiments, the light emitting end 31 and the light receiving end 32 are at the same level within the dust box 50. On one hand, the interference of reflected light and refracted light on a photosensitive value received by a light receiving end can be effectively shielded, so that the dust amount in the dust collecting box can be more accurately judged; on the other hand, the problem of large detection result error caused by different heights of the light-emitting end 31 and the light-receiving end 32 can be avoided.

Further, the applicant has recognized that when the heights of the light emitting end 31 and the light receiving end 32 are too high, it is determined that the dust box 50 needs to be cleaned only when the dust box 50 is almost filled with the amount of dust collected in the dust box 50, but at this time, a part of the dust may not be collected in the dust box 50 and may leak out. If the heights of the light emitting end 31 and the light receiving end 32 are too low, the dust box 50 is cleaned more frequently, which causes unnecessary troubles. For this, the present application sets the height of the light emitting end 31 and the light receiving end 32 within the dust box 50 to be between one half to three quarters of the height of the dust box 50 itself, that is, the height of the light emitting end 31 and the light receiving end 32 within the dust box 50 is higher than one half of the height of the dust box 50 itself and lower than three quarters of the height of the dust box 50 itself. Therefore, the dust collecting box 50 can be prevented from being cleaned too frequently, and a good dust collecting effect can be obtained.

In some embodiments, the air conditioning indoor unit 1 further includes a prompting device 40, and the prompting device 40 is configured to controllably send out a prompting message for prompting to clean the dust collecting box 50 when the light-receiving end 32 receives a light-sensitive value smaller than a preset threshold value, so that a user can know the dust collection amount in the dust collecting box 50 and timely clean the dust collecting box 50.

Specifically, the prompting device 40 may include one or more of a buzzer, a light display device, or a voice output module. That is, the buzzer may emit a prompt sound to prompt the user to clean the dust box 50, the optical display device may emit an optical signal to prompt the user to clean the dust box 50, and the voice output module may output a voice message, such as "please clean the dust box", to prompt the user to clean the dust box 50. Either mode is relatively direct, simple and easy to understand, and is easy to accept by users.

Fig. 3 is a schematic structural view of a cleaning apparatus according to an embodiment of the present invention, and fig. 4 is a schematic cross-sectional view of the cleaning apparatus according to an embodiment of the present invention. In some embodiments, the sweeping device 10 may be an oscillating self-cleaning device with high sweeping efficiency and good sweeping effect, and includes a brush member 11, an oscillating member 12 and a driving member 14. The brush 11 is used for cleaning the filter screen 22; the vibrating member 12 is connected to the brush member 11 and configured to controllably bring the brush member 11 into vibration. The driving member 14 is directly or indirectly connected to the brush member 11 to controllably drive the brush member 11 to reciprocate along the length direction or the width direction of the filtering net 22.

Generally, the surface area of the filter screen 22 is larger than that of the brush 11, so that the cleaning device 10 needs to move along a predetermined track during the cleaning process, so as to clean the filter screen 22 more completely. The predetermined trajectory is generally a trajectory reciprocating in a length direction of the filter screen 22 or a trajectory reciprocating in a width direction of the filter screen 22.

Further, the driving member 14 may be an elongated driving rod. The drive rod may be connected to an external drive mechanism or the drive member 14 itself may have a conductive core that is moved by external magnetic force to drive the movement of the brush member 11. Since the external driving mechanism or the electromagnetic principle are techniques that are readily available to those skilled in the art, they will not be described in detail here.

In some embodiments, the number of the dust box 50 is one, and is disposed at one end of the filter net 22 in parallel to the moving direction of the brush member 11. In other embodiments, the number of the dust boxes 50 is two, one optical fiber sensor is provided in each dust box 50, and the two dust boxes 50 are respectively provided at both ends of the filter screen 22 parallel to the moving direction of the brush member 11.

Specifically, when the cleaning device 10 moves along the length direction of the filter screen 22, two ends of the filter screen 22 in the length direction may be respectively provided with a dust box 50 to collect dust on the filter screen 22 at two sides, and of course, one dust box 50 may be provided at one end of the filter screen 22 in the length direction. Similarly, when the cleaning device 10 moves along the width direction of the filter screen 22, two ends of the filter screen 22 in the width direction can be respectively provided with a dust box 50 to collect dust on the filter screen 22 at two sides, and of course, one dust box 50 can be provided at one end of the filter screen 22 in the width direction.

In some embodiments, brush member 11 has a base 111 and bristles 112 on one side of base 111 for contacting filter mesh 22. The applicant has appreciated that the brush member 11 exerts a force on the filter screen 22 during the process of cleaning the filter screen 22 by the bristles 112, that is, if the filter screen 22 is not damaged, the pressure value exerted by the brush member 11 on the filter screen 22 is within a certain range. However, when there is a breakage in a certain area of the filter net 22, the pressure value of the brush member to the filter net 22 is too small or zero. The applicant has thus realised that the presence of breakage of the filter screen 22 can be detected indirectly by detecting the pressure of the brush arrangement acting on the regions of the filter screen 22. The pressure exerted by the brush member 11 on each target area of the filter web 22 can be directly detected by a pressure sensor provided at the end of the bristles 112 or on the surface of the filter web 22. However, the bristles 112 are spaced apart from each other, and it is not practical to provide a pressure sensor at the distal end thereof. If the pressure sensor is arranged on the surface of the filter screen 22, the pressure sensor can only be used for the filter screen 22, the application range is narrow, and one pressure sensor needs to be arranged for each filter screen 22, so that the cost is high.

Applicants further recognized that the forces act upon each other. When the brush member 11 presses the filter net 22, the filter net 22 also generates a reaction force to the brush member 11. Therefore, the pressure of the brush member 11 against the filter net 22 can be indirectly obtained by detecting the force of the filter net 22 against the brush member 11. For this reason, this application further sets up film pressure sensor 13 between base member 111 and brush hair 112, film pressure sensor 13 is used for detecting the pressure that brush spare 11 is used for in each target area that contacts with brush spare 11 of filter screen 22, thereby be convenient for detect the filter screen 22 damaged indirectly according to the pressure that acquires, it is cognitive only can judge its good or bad traditional thought through directly detecting filter screen 22 itself among the prior art to have broken through, the design thinking is novel, and compare in prior art in the device of direct detection filter screen 22, the structure of this application is simpler, easy to realize, and the cost is lower, user experience nature is better.

That is, the film pressure sensor 13 can be embedded inside the brush 11, so that not only can the pressure of the brush 11 on each target area of the filter screen 22 be accurately obtained according to the principle of acting force and reacting force, but also the installation stability of the film pressure sensor 13 and the structural stability of the whole vibration self-cleaning device 10 are ensured, so that the vibration self-cleaning device 10 is suitable for various filter screens 22, and the cost is low.

In some embodiments, the thin film pressure sensor 13 and the bristles 112 are isolated from each other by the flexible membrane 16, the flexible membrane 16 has good elasticity, the transmission of the acting force between the thin film pressure sensor 13 and the bristles 112 is hardly affected, and the bristles 112 can be prevented from generating friction damage on the thin film pressure sensor 13 through the flexible membrane 16.

In some embodiments, the air conditioning indoor unit 1 further includes a vibration sensor 17, and the vibration sensor 17 is directly or indirectly connected to the brush member 11 or directly or indirectly connected to the vibration member 12, so as to detect a vibration amplitude of the cleaning device 10 in a direction perpendicular to a plane where the filter screen 22 is located, so as to facilitate determining whether the cleaning device 10 is abnormal in vibration according to the vibration amplitude, for example, when the vibration amplitude is continuously smaller than a preset vibration threshold, it may be determined that the cleaning device is abnormal in vibration, so as to facilitate prompting of abnormal information for a user, and facilitate timely maintenance for the user, so as to ensure that the cleaning device 1 has a good cleaning effect all the time.

In some embodiments, vibration sensor 13 is disposed on a surface of base 111 parallel to a plane in which filter screen 22 is disposed. Specifically, in the use state, the brush staples 112 are attached to the lower surface of the base 111 and positioned below the base 111. Vibration sensor 13 can set up the upper surface at base member 111 to support vibration sensor 13 through base member 111 steadily, on the one hand, can ensure that vibration sensor 13 keeps the highly unanimous vibration with base member 111, make the vibration that vibration sensor 13 perception was the vibration that base member 111 is actual, improved the accuracy of vibration sensor 13 testing result, on the other hand, still can avoid the vibration to lead to vibration sensor 13 after long-time use to become flexible or the problem that drops from cleaning device 10, improved the structural stability of vibration from cleaning device 10.

In other embodiments, the vibration sensor 13 may be embedded in the base 111, i.e. the vibration sensor 13 is embedded inside the base 111. In this case, the connection between the vibration sensor 13 and the base 111 is tighter and firmer, the vibration sensor 13 hardly has any looseness problem, and it can be ensured that the vibration sensor 13 and the base 111 keep highly consistent vibration, so that the vibration sensed by the vibration sensor 13 is the actual vibration of the base 111, and the accuracy of the detection result of the vibration sensor 13 is improved.

In some embodiments, the vibration member 12 includes a vibration power source 121 for outputting power and a vibration output shaft 122 connected to the vibration power source 121, and the vibration output shaft 122 is connected to the base 111 to transmit vibration to the base 111 and to the bristles 112 through the base 111.

Specifically, the vibration power source 121 may be a power source capable of outputting ultrasonic vibrations, such as an ultrasonic motor. The ultrasonic ultra-high speed vibration can decompose and crush the dirt with large viscosity attached to the filter screen 22, and the decomposed dirt is cleaned by the brush piece 11 to achieve a good cleaning effect. The dirt cleaned by the brush 11 can be temporarily stored in a dust collecting box, so that the dirt can be cleaned regularly.

In some embodiments, the base 111 is formed with a receiving cavity 113 inside, and the vibration power source 121 is disposed in the receiving cavity 113, so as to prevent the vibration power source 121 from being exposed to the outside and occupying an excessive space. The vibration output shaft 122 is embedded in the base body 111. Specifically, the vibration output shaft 122 may be inserted into the base 111 from the receiving cavity 113, and the end thereof may protrude from the base 111 or may be hidden in the base 111 without protruding from the base 111. The vibration output shaft 122 and the base body 111 are fixedly connected in the inserting mode, the connection effect is firm, and the vibration transmission efficiency is improved. Furthermore, the vibration output shaft 122 may further be provided with a friction sleeve to increase a friction coefficient between the vibration output shaft 122 and the base 111, so as to further avoid the influence on the transmission of vibration caused by the relative motion between the vibration output shaft 122 and the base 111.

In some embodiments, the number of the vibrating members 12 may be one or more. For example, in the embodiment shown in fig. 2, the number of the vibrating members 12 is two, the vibration power sources 121 of the two vibrating members 12 are located in the accommodating cavities 113, and the vibration output shafts 122 of the two vibrating members 12 are respectively inserted into the base 111 from the accommodating cavities 113 in opposite directions, so that the balance of the vibration transmission to the brush member 11 is improved.

Fig. 5 is a schematic structural view of the cleaning apparatus according to an embodiment of the present invention with the driving member hidden. In some embodiments, the air conditioning indoor unit 1 further includes an attachment 15, the attachment 15 is fixedly connected with the brush member 11, and a connection hole 151 is formed therein. The driving member 14 is inserted into the connection hole 151 and is form-fitted with the connection hole 151 to move the brush member 11 by the attachment member 15. In particular, the attachment element 15 can be fixedly connected to the base 111 of the brush element 11 by gluing, snapping, screwing or other suitable means. The connecting hole 151 may have a rib 152 formed therein and extending along the insertion direction of the driving member 14, a groove 141 extending along the insertion direction of the driving member 14 is formed at a corresponding position of the driving member 14, and the rib 152 is inserted into the groove 141, so that the driving member 14 and the connecting hole 151 are connected in a form-fitting manner, and the driving member 14 and the attachment 15 are prevented from moving relatively.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. An indoor unit of an air conditioner, comprising:

the air conditioner comprises a shell, wherein an air inlet is formed in the shell, and a filter screen is arranged at the air inlet;

the cleaning device is used for cleaning the filter screen and collecting the dust on the filter screen in a dust collecting box; and

the optical fiber sensor is provided with a light-emitting end used for emitting light into the dust collecting box and a light-receiving end used for receiving the light emitted by the light-emitting end, and the light-emitting end and the light-receiving end are respectively arranged on two opposite side parts in the dust collecting box.

2. An indoor unit of an air conditioner according to claim 1,

the light emitting end and the light receiving end are positioned at the same horizontal height in the dust collecting box.

3. An indoor unit of an air conditioner according to claim 2,

the height of the light-emitting end and the light-receiving end in the dust collecting box is between one half and three quarters of the height of the dust collecting box.

4. An indoor unit of an air conditioner according to claim 1, further comprising:

and the prompting device is used for controllably sending out prompting information for prompting cleaning of the dust collecting box when the photosensitive value received by the light receiving end is smaller than a preset threshold value.

5. An indoor unit of an air conditioner according to claim 4,

the prompting device comprises one or more of a buzzer, a light display device or a voice output module.

6. An indoor unit for an air conditioner according to claim 1, wherein the cleaning device includes:

the brush piece is used for cleaning the filter screen;

the vibrating piece is connected with the brush piece and is configured to controllably drive the brush piece to vibrate; and

and the driving part is directly or indirectly connected with the brush part so as to controllably drive the brush part to reciprocate along the length direction or the width direction of the filter screen.

7. An indoor unit of an air conditioner according to claim 6,

the number of the dust collecting boxes is one, and the dust collecting boxes are arranged at one end part of the filter screen parallel to the moving direction of the brush piece; or

The number of the dust collecting boxes is two, one optical fiber sensor is arranged in each dust collecting box, and the two dust collecting boxes are respectively arranged at two end parts, parallel to the moving direction of the brush piece, of the filter screen.

8. An indoor unit of an air conditioner according to claim 6,

the brush part is provided with a base body and bristles which are positioned on one side of the base body and are used for being in contact with the filter screen; and is

And a film pressure sensor is arranged between the base body and the bristles and is used for detecting the pressure of the brush piece acting in each target area of the filter screen, which is in contact with the brush piece.

9. An indoor unit of an air conditioner according to claim 6, further comprising:

and the vibration sensor is directly or indirectly connected with the brush piece or directly or indirectly connected with the vibration piece and used for detecting the vibration amplitude of the cleaning device in the direction vertical to the plane where the filter screen is located.

10. An indoor unit of an air conditioner according to claim 6, further comprising:

an attachment member fixedly connected with the brush member and having a connection hole formed therein;

the driving piece is inserted into the connecting hole and is in matched connection with the connecting hole, so that the attachment piece drives the brush piece to move.

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