CN107152720B - Wall-mounted air conditioner indoor unit - Google Patents

Abstract

The invention provides a wall-mounted air conditioner indoor unit, which comprises: the air conditioner comprises a housing, a fan and a fan, wherein the housing is provided with a left end cover and a right end cover which respectively form the left surface and the right surface of an indoor unit of the air conditioner, and the top of the housing is provided with an air inlet; a front panel disposed at a front side of the casing to form a front surface of the indoor unit of the air conditioner; the purification module is movably arranged on the housing and is provided with a plurality of purification sections extending transversely, and the purification sections are sequentially connected end to end in the width direction of the purification module so as to enable the purification sections to move synchronously; and a driving device arranged at the front part of the housing and configured to be connected with at least one purification section so as to drive the purification module to move; the cleaning module is configured to move between the inner side of the front panel and the inner side of the air inlet under the driving of the driving device; and the first guide way and the second guide way that the symmetry set up are seted up respectively to the inboard of left end lid and right-hand member to make the left end and the right-hand member of purification module remove along first guide way and second guide way respectively.

Description

Wall-mounted air conditioner indoor unit

Technical Field

The invention relates to the technical field of household appliances, in particular to a wall-mounted air conditioner indoor unit.

Background

Air conditioners (Air conditioners for short) are electrical appliances for supplying treated Air directly to an enclosed space or area, and in the prior art, Air conditioners are generally used to condition the temperature of a work environment. Along with the higher and higher requirement of people on the environment requirement comfort level, the function of the air conditioner is also richer and richer.

Due to the increasing demand for air cleanliness, some solutions for providing a purifying device in an air conditioner to purify a portion of air entering the air conditioner have appeared, however, these air conditioners with purifying function have the following problems: because only part of air can be purified, the purification effect is poor; in addition, since the purification apparatus operates for a long time, even if the air is in a very clean condition, it remains in operation, so that the service life of the purification apparatus is reduced and secondary pollution is also easily caused.

Disclosure of Invention

It is an object of the present invention to provide an air conditioner with a purification function that overcomes or at least partially solves the above problems.

The further purpose of the invention is to start and stop the function of the air conditioner as required, and to avoid the purification function from working all the time.

Another further object of the present invention is to avoid the load abnormality of the heat exchanger of the indoor unit caused by the reduction of the air volume when the purification is performed.

In particular, the present invention provides a wall-mounted air conditioning indoor unit, comprising:

the cover shell is provided with a left end cover and a right end cover which respectively form the left surface and the right surface of the indoor unit of the air conditioner, and the top of the cover shell is provided with an air inlet;

a front panel disposed at a front side of the casing to form a front surface of the indoor unit of the air conditioner;

the purification module is movably arranged on the housing and is provided with a plurality of purification sections extending transversely, and the purification sections are sequentially connected end to end in the width direction of the purification module so as to enable the purification sections to move synchronously; and

the driving device is arranged at the front part of the housing and is configured to be connected with at least one purifying section so as to drive the purifying module to move; wherein

The purification module is configured to move between the inner side of the front panel to the inner side of the air inlet under the driving of the driving device; and is

The inner sides of the left end cover and the right end cover are respectively provided with a first guide groove and a second guide groove which are symmetrically arranged, so that the left end and the right end of the purification module respectively move along the first guide groove and the second guide groove.

Optionally, the drive device comprises:

the driving device comprises a first motor and a second motor, wherein the first motor and the second motor are respectively configured to controllably output two driving forces in opposite directions;

the first gear and the second gear are configured to be rotatably connected to the left end and the right end of one purification section respectively and are coaxially arranged with the output shafts of the first motor and the second motor respectively so as to rotate under the driving of the first motor and the second motor;

and the first rack and the second rack are respectively fixed at the left end and the right end of the front side of the housing in the transverse direction and are configured to be respectively meshed with the first gear and the second gear, so that the gears move along the extension direction of the racks when rotating.

Optionally, the left end and the right end of the purification section are respectively provided with an upper connecting pin hole and a lower connecting pin hole which vertically extend from the upper edge and the lower edge of the end;

the lower connecting pin hole of the upper purifying section and the upper connecting pin hole of the lower purifying section in every two adjacent purifying sections are coaxially connected through a connecting pin so that the two adjacent purifying sections can be rotatably hinged.

Optionally, the purification module is provided with two driving pins and is coaxially arranged with the two lower connecting pin holes at the left end and the right end of the purification section at the lowest part of the purification module; and is

The two driving pins are respectively and coaxially arranged with the first gear and the second gear so as to respectively move along the first rack and the second rack under the driving of the first gear and the second gear.

Optionally, the end of the connecting pin, which faces away from the purifying section, extends outwards to form a sliding boss;

the sliding boss is configured to be slidably inserted into the first guide groove or the second guide groove to slide in the first guide groove or the second guide groove along the extending direction of the first guide groove or the second guide groove, respectively, and to restrict the movement of the purification section in the direction perpendicular to the extending direction of the first guide groove or the second guide groove.

Optionally, the first guide slot has a first upper section, a first lower section and a first bend section;

the first upper section is positioned below the air inlet and is configured to extend obliquely upwards from the lower part of the front edge of the air inlet to the lower part of the rear edge of the air inlet;

the first bending section is configured to bend from the front end of the first upper section and extend towards the front lower direction;

the first lower section is configured to extend vertically downward from a lower end of the first bent section; and

the second guide groove is provided with a second upper section, a second lower section and a second bending section; and is

The second upper section, the second lower section, and the second bend section are arranged mirror-symmetrically to the first upper section, the first lower section, and the first bend section, respectively.

Optionally, the purification module is configured to be controllably moved to a first position between the first upper section and the second upper section, and the front end and the rear end of the purification module are respectively located at the front side of the front edge of the air inlet and the rear side of the rear edge of the air inlet; and

the purification module is configured to be controlled to move to a second position between the first lower section and the second lower section, and the purification module is integrally positioned at the front side of a vertical plane where the front edge of the air inlet is positioned.

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

a heat exchanger disposed inside the purification module and configured to exchange heat with air flowing therethrough; wherein

The heat exchanger is provided with a plurality of heat exchange areas and at least one electronic expansion valve, and is configured to adjust the opening degree of the electronic expansion valve according to the position of the purification module so as to control the quantity of the refrigerant entering the heat exchange areas.

The air conditioner with the purification function is provided with the purification module connected with the driving device, the purification module is driven by the driving device to move in the indoor unit, and the purification module is driven by the driving device to move to a purification position which completely shields the air inlet in a purification mode, so that air flow entering the indoor unit is purified, and the air quality of an indoor environment is improved; in the non-purification mode, the purification module can be driven by the driving device to move out of the air inlet to expose the air inlet, so that the air flow can directly enter the indoor unit without passing through the purification module. Therefore, the purification function can be started as required, and the service life of the purification module is prolonged.

Furthermore, the wall-mounted unit of the air conditioner room divides the heat exchanger into a plurality of heat exchange areas, and adjusts the input quantity of the refrigerant in each heat exchange area according to the different air quantities flowing through the heat exchange areas. Therefore, the whole wall-mounted unit of the air conditioner room has high heat exchange efficiency, the phenomenon that the local temperature difference of the heat exchanger is too large is avoided, and the running stability of the heat exchanger is enhanced.

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 invention will be described in detail hereinafter, by way of illustration and not 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 a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention;

fig. 2 is a schematic exploded view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;

FIG. 3 is a schematic block diagram of a housing according to one embodiment of the invention;

FIG. 4 is a schematic block diagram of a housing according to one embodiment of the invention from another perspective;

FIG. 5 is a schematic block diagram of a purification module and drive arrangement according to one embodiment of the present invention;

FIG. 6 is a schematic block diagram of a purification section according to one embodiment of the present invention;

fig. 7 is a schematic view of an indoor heat exchanger of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;

FIG. 8 is a schematic front view of a dispensing adjustment mechanism according to one embodiment of the present invention;

fig. 9 is a schematic cross-sectional view taken along a sectional line a-a in fig. 8.

Detailed Description

Fig. 1 is a schematic configuration view of a wall-mounted type air conditioning indoor unit 100 according to an embodiment of the present invention. Fig. 2 is a schematic exploded view of a wall-mounted air conditioning indoor unit 100 according to an embodiment of the present invention. Referring to fig. 1 and 2, a wall-mounted type air conditioning indoor unit 100 may generally include a frame 130 for supporting a blower and a heat exchange device, a cover case 120 covering the frame 130, and a front panel disposed at a front portion of the cover case 120 to form a front surface of the air conditioning indoor unit 100. Specifically, the top of the casing 120 is provided with an air inlet grille, and an air inlet 121 is formed on the air inlet grille to allow ambient air to enter the indoor unit 100 of the air conditioner. The casing 120 also has left and right end covers 124 and 125 forming left and right surfaces of the air conditioning indoor unit 100, respectively. The frame 130, the cover 120, and the front panel may collectively constitute a body of the air conditioning indoor unit 100.

In particular, the indoor unit 100 further includes a purification module 150 and a driving device. The purification module 150 is configured to be movably disposed on the housing 120.

Fig. 3 is a schematic structural view of the housing 120 according to one embodiment of the present invention. Fig. 4 is a schematic structural view of the housing 120 in another direction according to an embodiment of the present invention. Referring to fig. 3 and 4, the inner sides of the left end cover 124 and the right end cover 125 are respectively provided with a first guide groove and a second guide groove which are symmetrically arranged, so that the left end and the right end of the purification module 150 respectively move along the first guide groove and the second guide groove. The purification module 150 has a plurality of purification sections 151 extending laterally, and the plurality of purification sections 151 are sequentially connected end to end in the width direction thereof such that the plurality of purification sections 151 move synchronously. A driving means is provided at the front of the housing 120 and is configured to be connected to at least one purification section 151 to drive the purification module 150 to move.

Further, the cleaning module 150 may be configured to move between the inner side of the front panel to the inner side of the air inlet 121 under the driving of the driving device.

That is, when the air quality is medium or poor, the cleaning module 150 may be moved from the inside of the front panel to the inside of the air inlet 121, i.e., a cleaning position, by the driving of the driving device. The air inlet 121 is completely shielded by the purification module 150, and the purification module 150 is in full contact with air to fully purify the air flow entering the indoor unit 100, so that the air quality of the indoor environment is improved.

When the air quality is good or excellent, the purification module can be driven by the driving device to move from the inner side of the air inlet 121 to the inner side of the front panel, namely, the purification module is located at a non-purification position between the front panel and the front surface of the indoor heat exchanger, so that the air inlet 121 is exposed, the wind resistance of the purification module can be reduced, and the air conditioner is more energy-saving and environment-friendly.

The air conditioner with the purification function is provided with the purification module 150 connected with the driving device, the purification module 150 is driven by the driving device to move in the indoor unit 100, and the purification module 150 is driven by the driving device to move to a purification position which completely shields the air inlet 121 in the purification mode, so that the air flow entering the indoor unit 100 is purified, and the air quality of the indoor environment is improved; in the non-cleaning mode, the cleaning module 150 can be moved out of the air inlet 121 by the driving device to expose the air inlet 121, so that the airflow can directly enter the indoor unit 100 without passing through the cleaning module 150. Thereby, the purification function can be turned on as needed, and the service life of the purification module 150 is prolonged.

The purification module 150 may be disposed inside a dust filter of the indoor unit 100, and when the purification module 150 moves from a position far away from the air inlet 121 to the inside of the air inlet 121, the purification module 150 is located below the dust filter, and an air flow entering the indoor unit 100 is firstly coarse-filtered through the dust filter, then fine-filtered through the purification module 150, and fully purified, and then enters the indoor unit 100, exchanges heat with an indoor heat exchanger, and then enters an indoor environment through the air outlet.

Before the air current passes through purification module 150, impurity such as dust, granule that the dust screen filters wherein earlier, can avoid impurity such as dust, granule in the air current to get into purification module 150 and influence the use of purifying the group, simultaneously, also avoided purification module 150 to pile up the dust and need frequently wash or change after long-time the use.

FIG. 5 is a schematic block diagram of a purification module 150 and drive arrangement according to one embodiment of the invention. Fig. 6 is a schematic structural view of the purification section 151 according to an embodiment of the present invention. Referring to fig. 5 and 6, the purification module 150 may be comprised of a plurality of elongated purification sections 151. A plurality of elongated purification sections 151 are arranged in parallel in a chain. Therefore, the direction of the purification module 150 can be more flexibly and smoothly changed when the purification module moves along the first guide groove and the second guide groove.

In some embodiments of the invention, the drive means comprises two sets, each set having a motor, a gear and a rack. Specifically, the first motor 127a and the second motor 128a are each configured to controllably output two driving forces in opposite directions. And first and second gears 127b and 128b configured to be rotatably coupled to left and right ends of one of the purifying sections 151, respectively, and coaxially disposed with output shafts of the first and second motors 127a and 128a, respectively, to be rotated by the first and second motors 127a and 128 a. A first rack 127c and a second rack 128c fixed to left and right lateral ends of a front side of the housing 120 in a vertical direction, respectively, and configured to engage with the first gear 127b and the second gear 128b, respectively, such that the gears move in an extending direction of the racks when rotated.

In some embodiments of the present invention, the left and right ends of the purge section 151 have upper and lower dowel pin holes 151a and 151b, respectively, extending vertically from the upper and lower edges of the ends. The lower connecting pin hole 151b of the upper purifying segment 151 and the upper connecting pin hole 151a of the lower purifying segment 151 of each adjacent two purifying segments 151 are coaxially connected by a connecting pin 152 so that the two adjacent purifying segments 151 are rotatably hinged. That is, the multi-stage purification stages 151 are chained in the up-down direction (when the purification module 150 is located at the non-purification position).

In some embodiments of the present invention, the purge module 150 has two driving pins 153 and is coaxially disposed with two lower connection pin holes 151b at both left and right ends of the lowermost purge section 151 of the purge module 150. The two driving pins 153 are respectively disposed coaxially with the first gear 127b and the second gear 128b to move along the first rack 127c and the second rack 128c by the first gear 127b and the second gear 128 b. That is, the first gear 127b and the second gear 128b are both located below the purification module 150. Therefore, when the purification module 150 moves along the arc-shaped curve between the inner side of the front panel and the inner side of the air inlet 121, the two driving devices only need to perform simple vertical movement on the inner side of the front panel along with the lower end of the purification module 150, so that the narrow space between the front panel and the housing 120 can be fully utilized, and the structure of the indoor unit 100 of the air conditioner is more compact.

When the purification module 150 moves from the inner side of the front panel to the inner side of the air inlet 121, the purification module 150 may be located at the lower portion of the dust filter screen, and the airflow entering the indoor unit 100 is firstly coarse-filtered through the dust filter screen, then fine-filtered through the purification module 150, and fully purified, and then enters the inner side of the housing 120, exchanges heat through the indoor heat exchanger, and enters the indoor environment through the air outlet.

Before the air current passes through purification module 150, impurity such as dust, granule wherein is filtered through the dust screen earlier, can avoid impurity such as dust, granule in the air current to get into purification module 150 and influence purification module 150's use, simultaneously, also avoided purification module 150 to pile up the dust after long-time the use and need frequently wash or change.

In some embodiments of the present invention, the ends of the connecting pins 152 facing away from the purge section 151 are extended outwardly with a sliding boss. The sliding bosses are configured to be slidably inserted into the first guide grooves or the second guide grooves to slide in the first guide grooves or the second guide grooves, respectively, along the respective extending directions of the first guide grooves or the second guide grooves, and to restrict the movement of the purification section 151 in a direction perpendicular to the extending direction of the first guide grooves or the second guide grooves.

Specifically, the first guide groove has a first upper section 124a, a first lower section 124c, and a first bent section 124 b. The first upper section 124a is located below the intake vent 121 and is configured to extend obliquely upward from below a front edge of the intake vent 121 to below a rear edge of the intake vent 121. The first bending section 124b is configured to bend from the front end of the first upper section 124a and extend in the forward and downward direction. The first lower section 124c is configured to extend vertically downward from the lower end of the first bent section 124 b. The second guide groove has a second upper section 125a, a second lower section 125c, and a second bent section 125 b. The second upper section 125a, the second lower section 125c, and the second bent section 125b are disposed in mirror symmetry with the first upper section 124a, the first lower section 124c, and the first bent section 124b, respectively.

Thus, when the purge module 150 is located at the purge position, the first gear 127b and the second gear 128b move to the inner sides of the first bending section and the second bending section, respectively. When the purge module 150 is located at the non-purge position, the first gear 127b and the second gear 128b move to the inside of the lower ends of the first lower section 124c and the second lower section 125c, respectively.

Further, a plurality of travel switches may be provided in the first and second guide grooves to control rotation of the first and second motors 127a and 128 a. Specifically, a plurality of travel switches may be located at: on the groove wall at the junction of the first upper section 124a and the first bend, on the groove wall at the junction of the second upper section 125a and the second bend, on the groove wall at the lower end of the first lower section 124c and on the groove wall at the lower end of the second lower section 125 c.

That is, when the purification module 150 is located at the first position, the driving pins 153, which are respectively coaxial with the first gear 127b and the second gear 128b, move from bottom to top to pass through the first bending section 124b and the second bending section 125b, and then respectively interfere with the travel switches located on the walls of the guide grooves of the first upper section 124a and the second upper section 125a, so that the first motor 127a and the second motor 128a are controlled to stop rotating. When the purification module 150 is located at the second position, the driving pins 153, which are respectively coaxial with the first gear 127b and the second gear 128b, move from top to bottom, respectively pass through the first bending section 124b and the second bending section 125b, and then respectively collide with the travel switches located on the guide groove walls at the lower ends of the first lower section 124c and the second lower section 125c, so that the first motor 127a and the second motor 128a are controlled to stop rotating. Therefore, the motor can be prevented from rotating and generating excessive noise, and the abrasion of the gear and the rack is reduced.

Each guide groove is composed of an upper section, a lower section and a bending section. Specifically, the first upper section 124a and the second upper section 125a may be located right below the left and right edges of the inlet air, and have a length substantially equal to the left and right edges thereof, so as to ensure that the purification module 150 moving between the first upper section 124a and the second upper section 125a may be located right below the air inlet 121, and the coverage area thereof is not smaller than the inlet air cross-sectional area of the air inlet 121.

In some embodiments of the present invention, the cleaning module 150 is configured to be controllably moved to a first position between the first upper section 124a and the second upper section 125a, i.e., a cleaning position, such that the front end and the rear end of the cleaning module 150 are respectively located at the front side of the front edge of the intake vent 121 and at the rear side of the rear edge of the intake vent 121.

The cleaning module 150 is also configured to be controllably moved to a second position between the first lower section 124c and the second lower section 125c, i.e., a non-cleaning position, such that the cleaning module 150 is entirely located at the front side of the vertical plane in which the front edge of the air inlet 121 is located.

Further, the purification module 150 can also be located at other locations between the first location and the second location. That is, the cleaning module 150 may also be partially moved to the inner side of the front panel to partially shield a portion of the air inlet 121, expose a portion of the air inlet 121, and partially shield the air inlet, thereby reducing the wind resistance of the indoor unit 100. Therefore, the flexibility and adjustability of the air purification capacity are realized, and the expansion and the flexibility of the use of the air conditioner are realized.

In addition, when the purification module 150 is driven by the driving device to move between the inner side of the front panel 110 and the inner side of the air inlet 121, the vertical distance between the purification module 150 and the surface of the indoor heat exchanger 160 is relatively short. Therefore, when the purification module 150 moves to block a part of the indoor heat exchanger 160, a relatively large wind resistance is generated in the local area, which affects the heat exchange efficiency of the local area. Therefore, the indoor heat exchanger 160 generates local temperature difference, and is easy to have the problems of condensation or freezing and the like, so that the heat exchange capability of the indoor heat exchanger is weakened.

Fig. 7 is a schematic configuration diagram of an indoor heat exchanger 160 and a blower fan 170 of a wall-mounted type air conditioning indoor unit 100 according to an embodiment of the present invention.

To solve the above problem, in some alternative embodiments of the present invention, the indoor heat exchanger 160 has a plurality of heat exchange areas and at least one electronic expansion valve 161, and is configured to adjust an opening degree of the electronic expansion valve 161 according to a position of the purification module 150 to control an amount of refrigerant entering the plurality of heat exchange areas.

The electronic expansion valve 161 may be plural. The specific number of the electronic expansion valves 161 may be the same as the number of the heat exchange areas, so that each heat exchange area has one electronic expansion valve 161 opposite to the electronic expansion valve, and thus the input amount of the refrigerant entering the heat exchange area can be directly adjusted and controlled through the corresponding electronic expansion valve 161, so as to adapt to the heat exchange efficiency of each heat exchange area, which is different due to different windage resistances, and further, the heat exchange effect of each area of the indoor heat exchanger 160 is substantially the same.

The number of the plurality of heat exchange areas is two, and the two heat exchange areas are respectively a first heat exchange area positioned below the air inlet 121 and a second heat exchange area positioned below the front side of the front edge of the air inlet 121 (namely, the area corresponding to the inner side of the front panel);

when the purification module 150 is driven by the driving device 140 to move to the inner side of the air inlet 121, the purification module 150 shields the air inlet, at this time, the position of the purification module 150 is the first position, and the downstream of the air inlet path of the air inlet 121 is the first heat exchange area.

When the cleaning module 150 is driven by the driving device 140 to move to the inner side of the front panel 110, the air inlet 121 is exposed. At this time, the position of the purification module 150 is the second position. The corresponding area on the inner side of the front panel 110 is the second heat exchange area.

The indoor heat exchanger 160 may have a main guide line 200 for guiding inflow of the refrigerant and first and second guide lines 210 and 220 for supplying the refrigerant to the first and second heat exchange regions, respectively. The electronic expansion valve 161 may be disposed at an input end of the first diversion pipeline 210 or the second diversion pipeline 220 to adjust an amount of the refrigerant entering the first diversion pipeline 210 and/or the second diversion pipeline 220.

When the cleaning module 150 is driven by the driving device 140 to move to the inner side of the air inlet 121, the cleaning module completely covers the position of the air inlet 121, so as to clean the air entering the indoor unit 100. At this time, the first heat exchange area below the air inlet 121 and inside the purification module 150 is significantly affected by the wind resistance of the purification module 150. Thus, it is necessary to restrict the flow of the refrigerant into the first heat exchange region and/or to increase the flow of the refrigerant into the second heat exchange region.

When the indoor ambient air quality is slightly good and the user does not require the cleaning module of the indoor unit 100 to start the cleaning mode, the cleaning module 150 is driven by the driving device 140 to move from a position completely shielding the air inlet 121 to a position inside the front panel 110, and does not contact with the ambient air in a large area, so as to reduce or avoid the contact with the air as much as possible. At this time, the second heat exchange area located at the rear side of the purification module 150 and approximately perpendicular to the plane of the air inlet 121 is significantly affected by the wind resistance of the purification module 150. Thus, it is necessary to restrict the flow of the refrigerant into the second heat exchange region and/or to increase the flow of the refrigerant into the first heat exchange region.

That is, the indoor heat exchanger 160 may be divided into different heat exchange areas according to different moving positions of the purification module 150. Further, when the position of the purification module 150 is changed, the indoor unit 100 can immediately adjust the refrigerant input amount of each heat exchange area directly, so as to quickly balance the overall heat exchange effect of the heat exchanger 160 and avoid the phenomenon of excessive local temperature difference of the heat exchanger 160.

In some alternative embodiments, the number of electronic expansion valves 161 may be one. The electronic expansion valve 161 may be disposed at an input end of the second guide line 220, and configured such that when the purification module 150 is driven by the driving device 140 to move to a position shielding the air inlet 121, the electronic expansion valve 161 increases its opening degree to a first opening degree. That is, when the purification module 150 is located inside the air inlet 121 and covers the air inlet 121, the air flow flowing through the first heat exchange area is reduced due to the wind resistance, so that the heat exchange amount of the refrigerant in the first heat exchange area is reduced. At this time, the electronic expansion valve 161 may increase the opening degree thereof so that the refrigerant flowing into the second heat exchange region is increased and the refrigerant flowing into the first heat exchange region is decreased. Therefore, the heat exchange pressure and the heat exchange efficiency of the first heat exchange area and the second heat exchange area are adaptive to the air volume flowing through the first heat exchange area and the second heat exchange area, and the heat exchange effects of the first heat exchange area and the second heat exchange area are balanced.

Accordingly, when the purge module 150 is moved to a position inside the front panel 110 by the driving device 140, the electronic expansion valve 161 decreases its opening degree to a second opening degree smaller than the first opening degree. That is, the air resistance of the purification module 150 at the second position reduces the air flow passing through the second heat exchange area, thereby reducing the heat exchange amount of the refrigerant in the second heat exchange area. At this time, the electronic expansion valve 161 may decrease the opening degree thereof so that the refrigerant flowing into the second heat exchange region decreases and the refrigerant flowing into the first heat exchange region increases. Therefore, the heat exchange effect of the first heat exchange area and the second heat exchange area is balanced.

Specifically, since the first heat exchange area located below the air inlet 121 is more likely to contact more ambient air than the second heat exchange area located at the front side inside the housing, the heat exchange efficiency is relatively high. Therefore, the electronic expansion valve 161 may be directly disposed at the input end of the second diversion pipeline 220 for delivering the refrigerant to the second heat exchange area, so as to pre-limit the input amount of the refrigerant entering the second heat exchange area, thereby preventing or properly limiting the imbalance of the heat exchange effect possibly generated by the heat exchanger 160.

In alternative embodiments, the number of heat exchange areas of the heat exchanger 160 may be other values greater than two. Accordingly, the movement location of the purification module 150 can be further subdivided. In this embodiment, the plurality of moving positions of the purification module 150 may respectively correspond to a plurality of sets of ideal refrigerant input amounts of each heat exchange area. That is, for the situation that the heat exchanger 160 may have various uneven heat exchange efficiencies, the corresponding refrigerant input amount distribution ratios are respectively set, so that the adjustment of the refrigerant input amount in each branch pipe of the heat exchanger 160 is more accurate and rapid.

In this embodiment, the electronic expansion valve 161 is disposed at the input end of the second diversion pipeline 220 in the second heat exchange area, so that when the position of the purification module 150 is changed, only a relatively small opening difference value is required to be changed by the electronic expansion valve 161, and the heat exchange pressures in the two heat exchange areas can be balanced, thereby increasing the adjustment speed of the electronic expansion valve 161, and making the adjustment amplitude of the electronic expansion valve 161 more stable and stable, and prolonging the service life thereof.

Further, specific values of the first opening degree and the second opening degree can be set according to the actual use condition of the indoor unit. In some embodiments of the present invention, the first opening degree may be any opening degree value between 70% and 80%. For example, it may be 70%, 72%, 74%, 76%, 78%, or 80%, etc. The second opening degree may be any opening degree value between 15% and 50%, and may be 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, or the like, for example.

In some embodiments of the present invention, the heat exchanger 160 has a three-section housing, which includes a first heat exchange section 301 horizontally disposed below the air inlet 121, a second heat exchange section 302 extending downward from a front end of the first heat exchange section 301 to a front side, and a third heat exchange section 303 vertically extending downward from a lower end of the second heat exchange section 302. The first and second flow directing lines 210, 220 are both configured to tap into the shell from the second heat exchange section 302.

That is, the input ends of the first diversion pipeline 210 and the second diversion pipeline 220 can be connected to the second heat exchange section 302 at the middle position of the heat exchanger 160 along the same extending direction. Therefore, the refrigerant input pipeline mechanism is compact and occupies small space. Further, the first diversion pipeline 210 and the second diversion pipeline 220 located inside the second heat exchange section 302 extend in opposite directions, so as to prevent the refrigerant in the respective branch pipelines of the two heat exchange areas from influencing each other.

In some embodiments of the present invention, the first heat exchange section 301 and at least a portion of the second heat exchange section 302 form a first heat exchange zone. The third heat exchange section 303 and at least a portion of the second heat exchange section 302 form a second heat exchange area. The first guiding pipe 210 is bent and extends upwards to the first heat exchange section 301 in the second heat exchange section 302 to cover the whole first heat exchange area. The second guiding pipe 220 is bent inside the second heat exchange section 302 and extends downwards to the third heat exchange section 303 to cover the whole second heat exchange area.

That is, the upper half of the second heat exchange section 302 belongs to the first heat exchange area, and the lower half of the second heat exchange section 302 belongs to the second heat exchange area. Thus, when the purification module 150 is located between the first position and the second position, the main effect on the heat exchanger 160 is substantially located on the second heat exchange section 302 where the input ends of the first diversion line 210 and the second diversion line 220 are located. So that the wind resistance of the purification module 150 has a similar influence on the heat exchange effect of the first heat exchange region and the second heat exchange region. Therefore, the input ends of the first diversion pipeline 210 and the second diversion pipeline 220 are both arranged at the middle position of the heat exchanger 160, which can reduce the adjustment range of the opening degree of the electronic expansion valve 161 and the adjustment times thereof, so that the operation of the heat exchanger 160 is more stable.

In some embodiments of the present invention, a first temperature sensor and a second temperature sensor (not shown) are respectively disposed on outer surfaces of the first heat exchange area and the second heat exchange area to respectively detect a first surface temperature of the first heat exchange area and a second surface temperature of the second heat exchange area. Further, the electronic expansion valve 161 may be configured such that when the difference between the first surface temperature and the second surface temperature is greater than a predetermined temperature difference, the electronic expansion valve 161 increases or decreases a predetermined opening value.

That is, the opening degree of the electronic expansion valve 161 may be first adjusted (increased to the first opening degree or decreased to the second opening degree) instantaneously according to the movement position of the purge module 150. Then, in the operation process of the heat exchanger 160, the electronic expansion valve 161 can also perform real-time adjustment according to the first surface temperature and the second surface temperature of the first heat exchange area and the second heat exchange area, so that the heat exchange effect of each area of the heat exchanger 160 is continuously maintained at substantially the same level, and the use effect of a user is ensured.

Specifically, the temperature difference value of the first surface temperature and the second surface temperature may be further set according to the performance of the heat exchanger 160, the purification mode of the indoor unit, and the like. In some embodiments of the present invention, the temperature difference may be any temperature value between 0.5 and 2 ℃. For example, the temperature may be 0.5 ℃, 0.7 ℃, 0.9 ℃, 1 ℃, 1.5 ℃, 2 ℃ or the like. In some preferred embodiments, the temperature difference may preferably be 1 ℃, so as to ensure that the surface temperatures of the regions of the heat exchanger 160 do not differ too much, and avoid too frequent adjustment of the opening degree of the electronic expansion valve 161.

In some embodiments of the present invention, in the event that the difference between the first surface temperature and the second surface temperature is greater than the temperature difference, the electronic expansion valve 161 is configured to: when the first surface temperature is less than the second surface temperature, the electronic expansion valve 161 increases the opening value. When the first surface temperature is greater than the second surface temperature, the electronic expansion valve 161 decreases the opening value. Specifically, the preset opening degree adjusting value can be any value between 1% and 10%. For example, it may be 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, or the like.

That is, after the opening degree of the electronic expansion valve 161 is primarily adjusted according to the moving position of the purification module 150, in the operation process of the heat exchanger 160, the heat exchange effect of the first heat exchange area and the second heat exchange area may be slightly different due to the influence of factors such as the indoor environment where the wall-mounted air conditioner is located, and the surface temperature of the heat exchanger is unbalanced. At this time, the opening degree of the electronic expansion valve 161 is adjusted to a small extent according to the surface temperature difference of each heat exchange area of the heat exchanger 160, so that the input amount of the cooling medium in the heat exchanger 160 can be regulated in real time, and the local temperature difference on the heat exchanger 160 can be eliminated rapidly. In particular, the fine adjustment can also provide data support for the preset opening value required when the first opening, the second opening and the like are optimized and adjusted for the first time, and the fine adjustment is greatly beneficial to the functional perfection of the wall-mounted unit in the air conditioner room.

In some embodiments of the present invention, the indoor unit of an air conditioner further includes a liquid distribution adjusting device 70 disposed downstream of the main diversion pipeline 200 and upstream of the first diversion pipeline 210 and the second diversion pipeline 220.

Fig. 8 is a schematic front view of a dispensing adjustment device 70 according to one embodiment of the present invention. Fig. 9 is a schematic cross-sectional view of a dispensing adjustment device 70 according to one embodiment of the present invention.

Referring to fig. 8, the liquid-separating adjusting device 70 has a flow-dividing chamber, and an elastic member 700 is disposed in the flow-dividing chamber to divide the inner space thereof into a first sub-chamber and a second sub-chamber, so as to respectively accommodate at least part of the refrigerant flowing into the flow-dividing chamber. Specifically, the liquid separation adjusting device 70 further includes a main diversion pipeline 200, a first diversion pipeline 210 and a second diversion pipeline 220, which are communicated with the refrigerant inlet thereof. The main diversion pipeline 200 is configured to guide the refrigerant into the diversion cavity. The first diversion pipeline 210 is configured to communicate with the first sub-chamber to guide the refrigerant in the first sub-chamber to flow out of the liquid separation regulating device 70. The second guiding pipe 220 is configured to communicate with the second sub-chamber to guide the refrigerant in the second sub-chamber to flow out of the liquid separation regulating device 70.

Further, the first guiding pipeline 210 is configured to communicate with the refrigerant receiving opening of the first heat exchanging region, so as to guide the refrigerant in the first sub-chamber to enter the first heat exchanging region. The second guiding pipeline 220 is configured to communicate with the refrigerant receiving port of the second heat exchange area to guide the refrigerant in the second sub-chamber to enter the second heat exchange area.

In some embodiments of the present invention, the elastic member 700 is composed of a fixed part 710 and a movable part 720. The fixing portion 710 is arc-shaped and is configured such that the outer peripheral end edge thereof is fixed to the inner wall of the branch chamber. The movable portion 720 is disposed such that a portion of its peripheral edge is connected to at least a portion of the inner peripheral edge of the fixed portion 710, and another portion of its peripheral edge is adjacent to at least a portion of the inner peripheral edge of the fixed portion 710 and/or a portion of the inner wall of the branch chamber, so as to separate the refrigerant in the first sub-chamber and the second sub-chamber and respectively deliver the refrigerant therein to the refrigerant pipes of the two heat exchange regions.

Referring to fig. 9, in some embodiments of the present invention, the elastic member 700 may be a sheet shape. The fixed part 710 and the movable part 720 may form a complete sectional shape having the same shape and size as at least one section of the distribution chamber to divide the inner space thereof into two parts.

That is, when the refrigeration effect of two heat transfer regions is similar, the heat transfer pressure of the two is also comparatively balanced to make respectively with the first subchamber of two heat transfer regional intercommunications and the fluid pressure of second subchamber roughly equal. From this, when the pressure in first subchamber and the second subchamber is equal, elastic component 700 can not receive rather than vertically effort, or this effort is far less than its self resilience force, thereby avoid movable part 720 and fixed part 710 or shunt intracavity wall between produce the clearance, and then prevent the indoor fluid exchange that produces of first subchamber and second subchamber, so that current comparatively balanced heat transfer effect can be maintained in two heat transfer regions, avoid its appearance of the too big condition of local difference in temperature, the stability of heat exchanger operation has been strengthened.

Further, a portion of the fixed portion 710 connected to the inner wall of the flow dividing chamber (hereinafter, referred to as a connecting portion) is away from the inlet of the flow dividing chamber for receiving the refrigerant, with respect to a portion of the movable portion 720 adjacent to at least a portion of the inner circumferential end edge of the fixed portion 710 and/or the inner wall of the flow dividing chamber (hereinafter, referred to as an adjacent portion).

Thus, when the pressures within the first and second sub-chambers are not equal, the pressure differential between the first and second sub-chambers causes the resilient sheet to be subjected to forces perpendicular thereto. When this effort is greater than the resilience force of elastic component 700 self, clearance is produced between movable part 720 and the reposition of redundant personnel intracavity wall, first sub-chamber and second sub-chamber intercommunication each other to produce the fluid exchange and get into the volume of the refrigerant in first sub-chamber and the second sub-chamber respectively.

When the purification module moves between the purification position and the non-purification position, the wind resistance generated by the purification module to the two heat exchange areas is different, and the heat exchange efficiency of the two heat exchange areas is different.

Specifically, when the purification module 150 is located at the upstream of the air inlet path of the first heat exchange region communicated with the first sub-chamber, the wind resistance of the first heat exchange region is increased, the heat exchange efficiency is reduced, and the temperature of the refrigerant therein is gradually lower than the temperature of the refrigerant in the second heat exchange region, so that the fluid pressure in the first heat exchange region is gradually lower than the fluid pressure in the second heat exchange region.

Accordingly, the fluid pressure within the first sub-chamber communicating with the first heat exchange region is progressively less than the fluid pressure within the second sub-chamber communicating with the second heat exchange region. When the effort that the fluid pressure difference of two subchambers produced was greater than the resilience force of elastic component 700 self, the one end atress that is located the adjacent part of moving part was crooked to the little first subchamber of fluid pressure to make the cross-sectional area that first subchamber is close to the refrigerant input of reposition of redundant personnel chamber reduce, and make the second subchamber be close to the cross-sectional area increase of the refrigerant input of reposition of redundant personnel chamber. From this, crooked movable part 720 can guide more relatively refrigerant to flow into the second subchamber to the refrigerant volume that the restriction flowed into in the first subchamber, thereby make the temperature difference and the heat transfer pressure difference of the first heat transfer region of intercommunication with the first subchamber and the second heat transfer region of intercommunication with the second subchamber reduce gradually, until the effort that the pressure difference of first subchamber and second subchamber produced is less than the resilience force of elastic component 700.

The air-conditioning indoor unit of the invention divides the refrigerant by arranging the liquid separation adjusting device 70 with the elastic part 700, so that when the heat exchange effect of each heat exchange area of the heat exchanger is obviously different, the elastic part 700 can automatically adjust the amount of the refrigerant entering each heat exchange area under the action of the pressure difference in the liquid separation cavity caused by the difference of the heat exchange effect, and no additional detection or monitoring device is needed, thereby simplifying the structure of the air-conditioning indoor unit and reducing the manufacturing cost thereof.

In the indoor unit of the air conditioner, the purification module is driven by the driving device to move between a purification position which completely shields the air inlet of the indoor unit and a default position which is away from the air inlet, and when the purification function is not started, the purification module is positioned at a position which is moved out of the air inlet and reaches a non-purification position; after the purification function is started, the purification module is driven by the driving device to move to a purification position which completely shields the air inlet of the indoor unit, and the air flow entering the indoor unit is purified.

Because above-mentioned purification module is when purifying position and non-purification position, the windage that the indoor set fan produced the air current is obviously different, and after getting into purification mode, the air current filters, leads to the heat transfer effect attenuation through indoor set heat exchanger inevitable, appears the high load problem easily, can carry out corresponding control according to the operation mode of air conditioner, makes the air conditioner reduce the normal refrigeration or the influence of heating the function to the air conditioner when purifying.

For example, after entering the purification mode, a target tube temperature of the heat exchanger tube temperature of the indoor unit can be set, the heat exchanger tube temperature of the indoor unit is detected in real time, and the feedback control is performed on the refrigeration system of the air conditioner according to the temperature difference between the detected tube temperature and the target tube temperature. The air conditioner to which the indoor unit of the present invention is applied further includes an outdoor unit, the above-described refrigeration system may include a heat exchanger in the indoor unit, a compressor of the outdoor unit, and other necessary structures, and the refrigeration system may be applied to the following specific control modes.

When the air conditioner operates in a refrigerating mode, if the temperature of the heat exchanger pipe after purification is lower than the target pipe temperature and does not exceed a first temperature difference threshold (for example, 3 degrees), the fan of the indoor unit can be subjected to feedback control according to the difference, and the lower the temperature of the heat exchanger pipe is, the faster the fan rotating speed of the indoor unit is. If the increase of the rotating speed of the fan of the indoor unit can not ensure that the temperature of the heat exchanger tube is maintained within the first temperature difference threshold value with the target tube temperature, the opening degree of a throttling device of the compression refrigeration cycle is increased, and if the temperature of the heat exchanger tube can not be maintained within the second temperature difference threshold value with the target tube temperature, the frequency of the compressor is reduced, so that the high load caused by the excessively low temperature of the heat exchanger of the indoor unit is prevented.

When the air conditioner performs heating operation, if the temperature of the heat exchanger pipe after purification is higher than the target pipe temperature and does not exceed a first temperature difference threshold (for example, 3 degrees), the fan of the indoor unit can be subjected to feedback control according to the difference, and the higher the temperature of the heat exchanger pipe is, the faster the fan rotating speed of the indoor unit is. If the increase of the rotating speed of the fan of the indoor unit can not ensure that the temperature of the heat exchanger tube is maintained within the first temperature difference threshold value with the target tube temperature, the opening degree of a throttling device of the compression refrigeration cycle is increased, and if the temperature of the heat exchanger tube can not be maintained within the second temperature difference threshold value with the target tube temperature, the frequency of the compressor is reduced, so that the high load caused by the overhigh temperature of the heat exchanger of the indoor unit is prevented.

The first temperature difference threshold value and the second temperature difference threshold value can be configured according to the specification and the use requirement of the indoor unit heat exchanger, for example, the first temperature difference threshold value is set to be plus or minus 3 ℃, and the second temperature difference threshold value is set to be plus or minus 5 ℃.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

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

Claims (7)

1. An indoor unit of a wall-mounted air conditioner, comprising:

the cover shell is provided with a left end cover and a right end cover which respectively form the left surface and the right surface of the indoor unit of the air conditioner, and the top of the cover shell is provided with an air inlet;

a front panel disposed at a front side of the casing to form a front surface of the indoor unit of the air conditioner;

the purification module is movably arranged on the housing and is provided with a plurality of purification sections extending transversely, and the purification sections are sequentially connected end to end in the width direction of the purification module so as to enable the purification sections to move synchronously; and

the driving device is arranged at the front part of the housing and is configured to be connected with at least one purifying section so as to drive the purifying module to move; wherein

The purification module is configured to move between the inner side of the front panel to the inner side of the air inlet under the driving of the driving device; and is

The inner sides of the left end cover and the right end cover are respectively provided with a first guide groove and a second guide groove which are symmetrically arranged, so that the left end and the right end of the purification module respectively move along the first guide groove and the second guide groove; wherein

The left end part and the right end part of the purification section are respectively provided with an upper connecting pin hole and a lower connecting pin hole which vertically extend from the upper edge and the lower edge of the end part;

the lower connecting pin hole of the upper purifying section and the upper connecting pin hole of the lower purifying section in every two adjacent purifying sections are coaxially connected through a connecting pin so that the two adjacent purifying sections can be rotatably hinged.

2. The indoor unit of claim 1, wherein the driving means comprises:

the driving device comprises a first motor and a second motor, wherein the first motor and the second motor are respectively configured to controllably output two driving forces in opposite directions;

the first gear and the second gear are configured to be rotatably connected to the left end and the right end of one purification section respectively and are coaxially arranged with the output shafts of the first motor and the second motor respectively so as to rotate under the driving of the first motor and the second motor;

and the first rack and the second rack are respectively fixed at the left end and the right end of the front side of the housing in the transverse direction and are configured to be respectively meshed with the first gear and the second gear, so that the gears move along the extension direction of the racks when rotating.

3. The indoor unit of air conditioner according to claim 2, wherein

The purification module is provided with two driving pin columns and is coaxially arranged with the two lower connecting pin holes at the left end and the right end of the purification section at the lowest part of the purification module; and is

The two driving pins are respectively and coaxially arranged with the first gear and the second gear so as to respectively move along the first rack and the second rack under the driving of the first gear and the second gear.

4. The indoor unit of an air conditioner according to claim 1,

the end part of the connecting pin column, which is far away from the purifying section, extends outwards to form a sliding boss;

the sliding boss is configured to be slidably inserted into the first guide groove or the second guide groove to slide in the first guide groove or the second guide groove along the extending direction of the first guide groove or the second guide groove, respectively, and to restrict the movement of the purification section in the direction perpendicular to the extending direction of the first guide groove or the second guide groove.

5. The indoor unit of an air conditioner according to claim 1,

the first guide groove is provided with a first upper section, a first lower section and a first bending section;

the first upper section is positioned below the air inlet and is configured to extend obliquely upwards from the lower part of the front edge of the air inlet to the lower part of the rear edge of the air inlet;

the first bending section is configured to bend from the front end of the first upper section and extend towards the front lower direction;

the first lower section is configured to extend vertically downward from a lower end of the first bent section; and

the second guide groove is provided with a second upper section, a second lower section and a second bending section; and is

The second upper section, the second lower section, and the second bend section are arranged mirror-symmetrically to the first upper section, the first lower section, and the first bend section, respectively.

6. The indoor unit of an air conditioner according to claim 5,

the purification module is configured to be controllably moved to a first position between the first upper section and the second upper section, and the front end and the rear end of the purification module are respectively positioned at the front side of the front edge of the air inlet and the rear side of the rear edge of the air inlet; and

the purification module is configured to be controlled to move to a second position between the first lower section and the second lower section, and the purification module is integrally positioned at the front side of a vertical plane where the front edge of the air inlet is positioned.

7. The indoor unit of an air conditioner according to claim 1, further comprising:

a heat exchanger disposed inside the purification module and configured to exchange heat with air flowing therethrough; wherein

The heat exchanger is provided with a plurality of heat exchange areas and at least one electronic expansion valve, and is configured to adjust the opening degree of the electronic expansion valve according to the position of the purification module so as to control the quantity of the refrigerant entering the heat exchange areas.

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