Vertical air conditioner indoor unit

Abstract

The utility model provides a vertical air conditioner indoor unit which comprises a machine shell, an air duct forming piece, a first fan and a rotary grating, a heat exchange cavity is defined by the machine shell, a first air outlet communicated with the heat exchange cavity is formed in the front side of the machine shell, a first air duct is formed in the air duct forming piece, and the air duct forming piece is arranged in the heat exchange cavity. The first air duct is arranged in the air duct forming piece and is arranged to enable an outlet of the first air duct to directly face the first air outlet, the first fan is arranged in the first air duct, the rotating grating is provided with a grating ring, and the rotating grating can be rotationally installed on the air duct forming piece around the center of the first air outlet and enables the grating ring to cover the first air outlet; after the rotating grating is started, the rotating grating ring is used for scattering heat exchange air flow flowing through the first air outlet, the grating ring is connected to a transmission shaft of the first draught fan through a transmission rod, and the first draught fan is used for driving the rotating grating to rotate. According to the vertical air conditioner indoor unit, flexible air outlet is achieved through the rotating grating, meanwhile, a driving mechanism used for driving the rotating grating to rotate is omitted, the number of components is reduced, and the component layout difficulty is simplified.

Description

Technical Field

[0001] The utility model relates to air conditioning technology, in particular to a vertical air-conditioning indoor unit. Background Art

[0002] As people's living standards continue to improve, their requirements for living environment are getting higher and higher. Air conditioning has become one of the indispensable household appliances. And as user demand continues to increase, solving the direct blowing problem has become an issue that cannot be ignored when designing air conditioners.

[0003] There are many ways to solve the direct blowing problem in the air conditioner in the prior art, such as adjusting the direction of the heat exchange airflow through the air guide plate, and changing the number and position of the air outlets. There is also an air conditioner with two upper and lower air outlets in the prior art. When there are children in the indoor space, the upper air outlet can be used to supply air to avoid direct blowing on the children. This does not completely solve the direct blowing problem, so it is necessary to make improvements. Utility Model Content

[0004] One purpose of the utility model is to overcome at least one defect in the prior art and provide a vertical air-conditioning indoor unit.

[0005] A further purpose of the utility model is to realize soft air outlet by utilizing the rotating rotary grille, while eliminating the driving mechanism for driving the rotating grille to rotate, thereby reducing the number of components and simplifying the difficulty of component layout.

[0006] Another further object of the utility model is to improve the transmission stability of the transmission rod.

[0007] Another further object of the present invention is to improve the movement stability of the rotary grille.

[0008] In particular, the utility model provides a vertical air-conditioning indoor unit, comprising: a casing, which defines a heat exchange chamber, and a front side of which has a first air outlet connected to the heat exchange chamber; a duct forming member, which has a first air duct, the duct forming member is arranged in the heat exchange chamber, and is arranged so that the outlet of the first air duct is directly opposite to the first air outlet; a first fan, which is arranged in the first air duct to promote the formation of a heat exchange airflow discharged to the first air outlet; a rotating grille, which has a grille ring, and the rotating grille can be rotatably mounted on the duct forming member around the center of the first air outlet, and its grille ring covers the first air outlet, and is configured to use the rotating grille ring to break up the heat exchange airflow flowing through the first air outlet when it is started; wherein the grille ring is connected to the transmission shaft of the first fan through a transmission rod, so that the first fan can drive the rotating grille to rotate.

[0009] Optionally, a first mounting member is provided at the inner center of the grille ring; and both ends of the transmission rod are respectively connected to the first mounting member and the transmission shaft of the first fan by means of a shaft-hub connection.

[0010] Optionally, the transmission rod also includes a first section and a second section, the first end of the first section is connected to the first mounting member, the first end of the second section is connected to the transmission shaft of the first fan; and the second end of the first section is connected to the second end of the second section through a speed reduction mechanism to reduce the rotation rate of the rotating grille.

[0011] Optionally, the vertical air conditioner indoor unit further includes: one or more limit members, arranged in the first air duct to rotatably support the transmission rod.

[0012] Optionally, the duct forming member has a front panel facing the first air outlet, the outlet of the first air duct is formed on the front panel, and there is a gap between the front panel and the inner surface of the front wall of the casing; the rotating grille also has a peripheral portion, the peripheral portion is formed on the periphery of the grille ring and extends toward the rear side of the grille ring, and the rotating grille is also arranged so that the peripheral portion is at least partially arranged in the gap.

[0013] Optionally, a mounting step is provided at the intersection of the grille ring and the peripheral portion, and the mounting step is suitable for being connected to the peripheral edge of the first air outlet in a form-fitting manner to constrain the rotating grille.

[0014] Optionally, on one of the surfaces opposite to each other of the front panel and the peripheral portion, at least one circle of limiting grooves is formed, and on the other side, limiting protrusions corresponding to the positions of the limiting grooves are formed, and the limiting protrusions cooperate with the limiting grooves to constrain the rotation trajectory of the rotating grille.

[0015] Optionally, the casing also has a second air outlet connected to the heat exchange chamber, and the second air outlet is arranged above the first air outlet; the duct forming member has a second air duct located above the first air duct, and the duct forming member is arranged so that the outlet of the second air duct is opposite to the second air outlet, so as to discharge the heat exchange airflow formed in the second air duct to the second air outlet.

[0016] Optionally, an air inlet is also provided on the rear side of the casing; the vertical air conditioner indoor unit also includes: a heat exchanger, which is arranged in the heat exchange cavity and located on the rear side of the duct forming member to exchange heat with the air entering the heat exchange cavity from the air inlet.

[0017] Optionally, the vertical air-conditioning indoor unit further includes: a second fan, disposed in the second air duct, to promote the formation of a heat exchange airflow that exchanges heat with the heat exchanger and flows toward the second air outlet.

[0018] The utility model relates to a vertical air-conditioning indoor unit. The rotating grille can be rotatably installed on the air duct forming member around the center of the first air outlet, and its grille ring covers the first air outlet. The grille ring is connected to the transmission shaft of the first fan through a transmission rod. Therefore, when the first fan is started, the rotating shaft drives the transmission rod to rotate, and the transmission rod drives the rotating grille to rotate. In this way, not only the rotating grille ring is used to break up the heat exchange airflow flowing through the first air outlet, so that it cannot send air forward for a long distance, avoiding the wind from blowing directly on people and achieving the effect of soft air outlet, but also the driving mechanism for driving the rotating grille to rotate can be omitted, which can reduce the number of components and simplify the difficulty of component layout.

[0019] Furthermore, in the vertical air-conditioning indoor unit of the utility model, a limit member is arranged in the first air duct, and a bearing can be arranged on the inner ring of the limit ring of the limit member. The transmission rod cooperates with the bearing to rotatably support the transmission rod, and the transmission rod can only rotate around its circumference, thereby improving the transmission stability of the transmission rod.

[0020] Furthermore, in the vertical air-conditioning indoor unit of the utility model, on the surfaces opposite to each other of the front panel of the air duct forming member and the peripheral portion of the rotating grille, one is formed with at least one circle of limiting grooves, and the other is formed with limiting protrusions corresponding to the positions of the limiting grooves, the limiting protrusions cooperate with the limiting grooves, and when the rotating grille rotates, the limiting protrusions can slide in the limiting grooves to constrain the rotation trajectory of the rotating grille.

[0021] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0023] Figure 1 is a schematic diagram of a vertical air-conditioning indoor unit according to an embodiment of the utility model;

[0024] Figure 2 is an exploded view of a vertical air conditioner indoor unit according to an embodiment of the utility model;

[0025] Figure 3 is a cross-sectional view of a vertical air conditioner indoor unit according to an embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of a rotating grille in a vertical air conditioner indoor unit according to an embodiment of the utility model;

[0027] Figure 5It is a schematic diagram of the connection relationship between the first fan and the rotating grille in the vertical air-conditioning indoor unit according to one embodiment of the utility model;

[0028] Figure 6 The utility model is a schematic diagram of the installation structure of the casing and the rotating grille in the vertical air-conditioning indoor unit according to one embodiment of the utility model. DETAILED DESCRIPTION

[0029] In the description of this embodiment, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the utility model.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0031] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "coupled" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0032] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the description of this embodiment have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0034] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0035] Combine the following Figures 1 to 6 The working principle of the utility model is described. Figure 1 is a schematic diagram of a vertical air-conditioning indoor unit 1 according to an embodiment of the utility model, Figure 2 1 is an exploded view of a vertical air-conditioning indoor unit 1 according to an embodiment of the utility model. Figure 3 is a cross-sectional view of a vertical air conditioner indoor unit according to an embodiment of the utility model, Figure 4 is a schematic diagram of a rotating grille in a vertical air conditioner indoor unit according to an embodiment of the utility model, Figure 5 This is a schematic diagram of the connection relationship between the first fan and the rotating grille in the vertical air-conditioning indoor unit according to an embodiment of the utility model. Figure 6 The utility model is a schematic diagram of the installation structure of the casing and the rotating grille in the vertical air-conditioning indoor unit according to one embodiment of the utility model.

[0036] The utility model provides a vertical air-conditioning indoor unit 1, which may include a casing 100, an air duct forming member 200, a heat exchanger 300, a fan, and the like.

[0037] An air inlet 112 is provided at the rear side of the housing 100, and an air outlet is provided at the front side of the housing 100. The shapes and numbers of the air inlet 112 and the air outlet can be set according to actual conditions. A heat exchange chamber 118 is provided inside the housing 100. The heat exchange chamber 118 can be used to arrange various components. The heat exchange chamber 118 is connected to the air inlet 112 and the air outlet respectively. In some specific embodiments, the housing 100 can also be assembled by snapping together an air inlet housing 101 and an air outlet housing 102. The air inlet 112 can be provided on the air inlet housing 101, and the air outlet is provided on the air outlet housing 102.

[0038] The air duct forming member 200 is fixed in the heat exchange chamber 118. The interior of the air duct forming member 200 can define an air duct. The air duct has an inlet and an outlet. The inlet can be directly opposite to the air inlet 112, and the outlet can be directly opposite to the air outlet. The air in the indoor environment can enter the air duct through the air inlet 112, and then be discharged from the air duct to the air outlet, and finally be discharged back into the indoor environment through the air outlet. The number of air ducts can be designed according to actual conditions. For example, one or more air ducts can be set. In addition, one or more air ducts can correspond to one air inlet 112, or each air duct can correspond to one air inlet 112. The relationship between the air outlet and the air duct can also be the same.

[0039] The heat exchanger 300 may be disposed in the heat exchange cavity 118 , located at the rear side of the air duct forming member 200 , ie, at a side close to the air inlet 112 , so as to exchange heat with the air flowing into the heat exchange cavity 118 from the air inlet 112 .

[0040] In some specific embodiments, the vertical air-conditioning indoor unit 1 may adopt a compression refrigeration cycle system, that is, the heat exchanger 300 is connected in series in the refrigerant flow path of the compression refrigeration cycle system, and the heat exchanger 300 is switched between serving as an evaporator providing cooling and serving as a condenser providing heat by switching the direction of the refrigerant.

[0041] In addition, the heat exchanger 300 can be designed as a whole, that is, one evaporator can provide cooling or heating for one or more air ducts, and can also be set according to the number of air ducts, for example, each air duct corresponds to a heat exchanger 300.

[0042] The fan can be arranged in the air duct to promote the formation of a heat exchange airflow entering from the air inlet 112 and exchanging heat with the heat exchanger 300, and the formed heat exchange airflow is discharged into the room from the air outlet to improve the heat exchange efficiency. The fan forms in the prior art include cross-flow fans, centrifugal fans, axial flow fans, etc., which can be selected according to actual conditions (such as factors such as air inlet direction and air outlet direction, air volume, wind speed, etc.) during design. For example, if the air inlet 112 is directly opposite to the air outlet, an axial flow fan can be selected.

[0043] In some embodiments, two air outlets arranged along the height direction are provided on the front side of the casing 100. The two air outlets are respectively a first air outlet 114 and a second air outlet 116 located above the first air outlet 114. The first air outlet 114 and the second air outlet 116 are respectively connected to the heat exchange chamber 118.

[0044] The user can control the first air outlet 114 and the second air outlet 116 to supply air at the same time, or can control the first air outlet 114 and the second air outlet 116 to supply air only one at a time to achieve personalized air supply, and use the first air outlet 114 and the second air outlet 116 at different heights to prevent direct blowing.

[0045] In this embodiment, the air duct forming member 200 may be formed with a first air duct 222 and a second air duct 224, and the second air duct 224 is located above the first air duct 222. The first air duct 222 and the second air duct 224 correspond to the first air outlet 114 and the second air outlet 116 respectively, and the outlet of the first air duct 222 faces the first air outlet 114 to discharge the heat exchange airflow formed in the first air duct 222 to the first air outlet 114, and the outlet of the second air duct 224 faces the second air outlet 116 to discharge the heat exchange airflow formed in the second air duct 224 to the second air outlet 116.

[0046] In this embodiment, there can be one heat exchanger 300 , which can cover the inlet of the first air duct 222 and the second air duct 224 at the same time to provide cooling or heating. There can also be one air inlet 112 , the size of which is suitable for heat exchange with the heat exchanger 300 .

[0047] In this embodiment, two fans may be provided, and the two fans may be a first fan 410 and a second fan 430. The first fan 410 is provided in the first air duct 222 to facilitate the formation of a heat exchange airflow that exchanges heat with the heat exchanger 300 and is arranged to the first air outlet 114. The second fan 430 is provided in the second air duct 224 to facilitate the formation of a heat exchange airflow that exchanges heat with the heat exchanger 300 and is arranged to the second air outlet 116. The user may control the start and stop of the first fan 410 and the second fan 430 to control the air supply from the first air outlet 114 and the second air outlet 116.

[0048] Furthermore, the vertical air-conditioning indoor unit 1 may also include a rotating grille 500, which may be arranged on the first air outlet 114, or on the second air outlet 116, or respectively on the first air outlet 114 and the second air outlet 116, so as to disperse the heat exchange airflow flowing through the air outlet and further prevent direct blowing.

[0049] If only one rotating grille 500 is designed, it is preferably installed on the first air outlet 114 at the bottom. This is because the first air outlet 114 is lower and is more likely to blow directly on children. Installing it on the first air outlet 114 can break up the heat exchange airflow flowing through the first air outlet 114 at a lower height, thereby protecting children to a greater extent. The following description takes the example of the rotating grille 500 being installed on the first air outlet 114. A common grille 800 can be installed at the second air outlet 116 to serve as a decoration and protect the user.

[0050] The rotating grille 500 has a grille ring 510, which can be rotatably installed on the air duct forming member 200 around the center of the first air outlet 114, and its grille ring 510 covers the first air outlet 114. When it is started, the rotating grille ring 510 is used to break up the heat exchange airflow passing through the first air outlet 114.

[0051] In some specific embodiments, the outline of the grille ring 510 and the outline of the first air outlet 114 are both configured to be compatible circles, and the center of the grille ring 510 coincides with the center of the first air outlet 114 .

[0052] In some specific embodiments, after installation, the grille ring 510 is flush with the front wall of the housing 100 to improve the aesthetics.

[0053] The grille ring 510 can be used for ventilation, decoration, and user protection. The grille ring 510 may include a circular periphery 512 and a plurality of grille bars 514. The plurality of grille bars 514 may divide the inner space of the periphery 512 into a plurality of small gaps (e.g. Figure 4 As shown, each grid bar 514 extends radially, and the plurality of grid bars 514 are evenly distributed. The heat exchange airflow flowing through the first air outlet 114 can be discharged into the indoor environment through a plurality of small gaps.

[0054] In this embodiment, the rotating grille 500 can be rotatably installed on the air duct forming member 200 around the center of the first air outlet 114. When the rotating grille 500 rotates, the plurality of bars 514 are used to break up the heat exchange airflow passing through the first air outlet 114, so that it cannot supply air forward for a long distance, thereby preventing the wind from blowing directly on people and achieving a soft air output effect.

[0055] Furthermore, a rotating support member can be provided on the periphery of the first air outlet 114. The function of the rotating support member is similar to that of a bearing. The rotating support member has an inner ring and an outer ring. The outer ring can be fixed to the periphery of the first air outlet 114, and the inner ring is provided on the inner side of the outer ring and can rotate relative to the outer ring. The inner ring is also connected to the periphery 512 of the grille ring 510. This not only supports the rotating grille 500, but also improves the stability of the rotating grille 500 during rotation.

[0056] Furthermore, the grille ring 510 is connected to the transmission shaft 412 of the first fan 410 through the transmission rod 600, so that the first fan 412 is used to drive the rotary grille 500 to rotate.

[0057] Since the air inlet 112 is arranged at the rear side of the housing 10 and the first air outlet 114 is arranged at the front side of the housing 10, the direction of the heat exchange airflow in the housing 10 remains unchanged, and the first fan 410 can be an axial flow fan. Specifically, the first fan 410 generally includes a rotating shaft 412 and a plurality of blades 414 connected to the circumference of the transmission shaft 412. The first fan 410 can also be arranged so that its rotating shaft 412 extends forward and backward. One end of the transmission rod 600 can be connected to the front end of the rotating shaft 412, and the other end of the transmission rod 600 can be connected to the grille ring 510. When the first fan 412 is started, the rotating shaft 412 drives the transmission rod 600 to rotate, and the transmission rod 600 drives the rotating grille 500 to rotate.

[0058] It can be seen that the vertical air-conditioning indoor unit 1 of this embodiment can omit the driving mechanism for driving the rotating grille 500 to rotate, which can reduce the number of components and simplify the difficulty of component layout.

[0059] In some embodiments, a first mounting member 540 is disposed at the center of the grille ring 510 , and both ends of the transmission rod 600 are respectively connected to the first mounting member 540 and the transmission shaft 412 of the first fan 410 by means of a shaft-hub connection.

[0060] Specifically, matching holes (not shown in the figure) are provided on the first mounting member 540 and the transmission shaft 412 of the first fan 410, and the two ends of the transmission shaft 412 are respectively matched with the two matching holes. The form of the hub connection can be various, for example, the transmission shaft 412 and the matching hole can be set to be force closed (i.e., interference fit), or the transmission shaft 412 and the matching hole can be set to be formed closed, i.e., form-fit connection (e.g., D-shaped shaft and D-shaped hole match, etc.). The above methods can make the transmission shaft 412 unable to rotate relative to the first mounting member 540 and the transmission shaft 412, so as to transmit torque. On this basis, those skilled in the art can also replace it with other structures, which are not listed here one by one.

[0061] In some embodiments, the transmission rod 600 may also include a first section and a second section, the first end of the first section is connected to the first mounting member 540, the first end of the second section is connected to the transmission shaft 412 of the first fan 410, and the second end of the first section is connected to the second end of the second section through a speed reduction mechanism to reduce the rotation rate of the rotating grille.

[0062] Since the rotation speed of the rotating shaft 412 is relatively high when the first fan 410 is running, and the rotating grille 500 does not need a very high rotation speed in actual use, a reduction mechanism is added in this embodiment to reduce the transmission ratio between the transmission shaft 412 and the rotating grille 500, thereby reducing the rotation rate of the rotating grille 500.

[0063] In some specific embodiments, the speed reduction mechanism may be a gear set with a pinion as a driving gear and a large gear meshing with the pinion as a driven gear.

[0064] In some embodiments, the vertical air-conditioning indoor unit 1 may further include one or more stoppers 900 , which are disposed in the first air duct 222 to rotatably support the transmission rod 600 .

[0065] Specifically, each stopper 900 may include a stopper ring and a plurality of fixing rods, one end of each fixing rod is connected to the outer ring of the stopper ring, and the other end of each fixing rod is connected to the inner wall of the first air duct, and the plurality of fixing rods may fix the stopper ring inside the first air duct 222. The inner ring of the stopper ring may be provided with a bearing, and the transmission rod cooperates with the bearing to rotatably support the transmission rod, and the transmission rod 600 can only rotate around its circumference.

[0066] Furthermore, when there are multiple limit members 900, the multiple limit members 900 can be arranged in sequence and spaced apart in the front-to-back direction, and the limit rings of the multiple limit members can be arranged concentrically, and the limit rings of the multiple limit members 900 are passed through by the transmission rod 600 in sequence to provide rotational support for the transmission rod 600 at different positions in the length direction of the transmission rod 600.

[0067] In some embodiments, the air duct forming member 200 has a front panel 226 facing the first air outlet 114 , the outlet of the first air duct 222 and the outlet of the second air duct 224 are both formed on the front panel 226 , and there is a gap between the front panel 226 and the inner surface of the front wall of the housing 100 .

[0068] The rotating grille 500 further has a peripheral portion 520 , which is formed at the peripheral edge 512 of the grille ring 510 and extends toward the rear side of the grille ring 510 . The rotating grille 500 is further configured such that the peripheral portion 520 is at least partially disposed in the gap 119 .

[0069] In some specific embodiments, the rotating grille 500 is further configured so that the peripheral portion 520 is entirely disposed in the gap 119 and its thickness is adapted to the width of the gap 119 to seal the gap and ensure that the heat exchange airflow discharged from the outlet of the first air duct 222 can all flow to the first air outlet 114.

[0070] In addition, since a common grille 800 can be selectively provided at the second air outlet 116 , a connecting air duct (not shown in the figure) can be used to connect the second air outlet 116 and the outlet of the second air duct 224 to seal the gap, thereby ensuring that the heat exchange airflow discharged from the outlet of the second air duct 224 can all flow to the second air outlet 116 .

[0071] Furthermore, a mounting step 530 is provided at the intersection of the grille ring 510 and the peripheral portion 520. The mounting step 530 is suitable for being connected to the peripheral shape of the first air outlet 114 on the casing 100. This not only allows the grille ring 510 to be exposed at the first air outlet 114, but also allows the entire rotating grille 500 to be restricted by the casing 100 and not to fall off easily.

[0072] Furthermore, on the surfaces opposite to each other of the front panel 226 and the peripheral portion 520, one is formed with at least one circle of limiting grooves 710, and the other is formed with limiting protrusions 720 corresponding to the positions of the limiting grooves 710. The limiting protrusions 720 cooperate with the limiting grooves 710. When the rotating grille 500 rotates, the limiting protrusions 720 can slide in the limiting grooves 710 to constrain the rotation trajectory of the rotating grille 500.

[0073] The limiting groove 710 can be provided on the front panel 226 of the air duct forming member 200, or on the peripheral portion 520 of the rotating grille 500. When the limiting groove 710 is provided on the front panel 226 of the air duct forming member 200, the limiting protrusion 720 is provided on the peripheral portion 520 of the rotating grille 500; when the limiting groove 710 is provided on the peripheral portion 520 of the rotating grille 500, the limiting protrusion 720 is provided on the front panel 226 of the air duct forming member 200.

[0074] Taking the example of the limiting groove 710 being provided on the front panel 226 and the limiting protrusion 720 being provided on the peripheral portion 520, the limiting groove 710 can be provided on the peripheral edge 512 of the outlet of the first air duct 222 and be provided concentrically with the outlet of the first air duct 222. The limiting groove 710 can be one circle or multiple circles. When it is multiple circles, the multiple circles of limiting grooves 710 are concentric rings. Correspondingly, when the limiting protrusion 720 can be provided according to the number of circles of the limiting groove 710, and the limiting protrusion 720 on each circle can include multiple limiting posts (such as Figure 4 As shown, the limiting protrusion 720 on each circle includes 3 limiting posts), or it can be a whole circle of limiting protrusions 720 that cooperate with the limiting circle.

[0075] In the vertical air-conditioning indoor unit 1 of the utility model, the rotating grille 500 can be rotatably installed on the air duct forming member 200 around the center of the first air outlet 114, and its grille ring 510 covers the first air outlet 114. The grille ring 510 is connected to the transmission shaft 412 of the first fan 410 through the transmission rod 600. Therefore, when the first fan 412 is started, the rotating shaft 412 drives the transmission rod 600 to rotate, and the transmission rod 600 drives the rotating grille 500 to rotate. In this way, not only the rotating grille ring 510 is used to break up the heat exchange airflow flowing through the first air outlet 114, so that it cannot send air forward for a long distance, avoiding the wind blowing directly on people, and achieving the effect of soft air output, but also the driving mechanism for driving the rotating grille 500 to rotate can be omitted, which can reduce the number of components and simplify the difficulty of component layout.

[0076] Furthermore, in the vertical air-conditioning indoor unit 1 of the utility model, the limit member 900 is arranged in the first air duct 222, and the inner ring of the limit ring of the limit member 900 can be provided with a bearing, and the transmission rod cooperates with the bearing to rotatably support the transmission rod, and enables the transmission rod 600 to only rotate around its circumference, thereby improving the transmission stability of the transmission rod 600.

[0077] Furthermore, in the vertical air-conditioning indoor unit 1 of the utility model, on the surfaces opposite to each other of the front panel 226 of the air duct forming member 200 and the peripheral portion 520 of the rotating grille 500, one is formed with at least one circle of limiting grooves 710, and the other is formed with limiting protrusions 720 corresponding to the positions of the limiting grooves 710, and the limiting protrusions 720 cooperate with the limiting grooves 710. When the rotating grille 500 rotates, the limiting protrusions 720 can slide in the limiting grooves 710 to constrain the rotation trajectory of the rotating grille 500.

[0078] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A vertical air conditioner indoor unit, characterized in that include: a casing, defining a heat exchange cavity therein and having a first air outlet on the front side thereof in communication with the heat exchange cavity; an air duct forming member having a first air duct therein, the air duct forming member being disposed in the heat exchange cavity and arranged so that the outlet of the first air duct faces the first air outlet; a first fan, disposed in the first air duct, to facilitate formation of a heat exchange airflow discharged toward the first air outlet; A rotating grille having a grille ring, the rotating grille being rotatably mounted on the air duct forming member around the center of the first air outlet, and having the grille ring covering the first air outlet, and configured to use the rotating grille ring to disperse the heat exchange airflow flowing through the first air outlet when it is started; wherein, The grille ring is connected to the transmission shaft of the first fan through a transmission rod, so that the first fan drives the rotary grille to rotate.

2. The vertical air conditioner indoor unit according to claim 1, characterized in that: A first mounting member is provided at the inner center of the grille ring; The two ends of the transmission rod are respectively connected to the first mounting member and the transmission shaft of the first fan by means of a shaft-hub connection.

3. The vertical air conditioner indoor unit according to claim 2, characterized in that: The transmission rod further includes a first section and a second section, wherein a first end of the first section is connected to the first mounting member, and a first end of the second section is connected to the transmission shaft of the first fan; and, The second end of the first section is connected to the second end of the second section via a speed reduction mechanism to reduce the rotation speed of the rotating grille.

4. The vertical air conditioner indoor unit according to claim 1, characterized in that Also includes: One or more limiting members are arranged in the first air duct to rotatably support the transmission rod.

5. The vertical air conditioner indoor unit according to claim 1, characterized in that: The air duct forming member has a front panel facing the first air outlet, the outlet of the first air duct is formed on the front panel, and there is a gap between the front panel and the inner surface of the front wall of the housing; The rotary grille also has a peripheral portion, which is formed at the periphery of the grille ring and extends to the rear side of the grille ring. The rotary grille is also configured so that the peripheral portion is at least partially disposed in the gap.

6. The vertical air conditioner indoor unit according to claim 5, characterized in that: An installation step is provided at the intersection of the grille ring and the peripheral portion, and the installation step is suitable for being connected with the peripheral edge of the first air outlet in a form-fitting manner to constrain the rotating grille.

7. The vertical air conditioner indoor unit according to claim 5, characterized in that: On the surfaces of the front panel and the peripheral portion facing each other, one is formed with at least one circle of limiting grooves, and the other is formed with limiting protrusions corresponding to the positions of the limiting grooves, and the limiting protrusions cooperate with the limiting grooves to constrain the rotation trajectory of the rotating grille.

8. The vertical air conditioner indoor unit according to claim 1, characterized in that: The housing further comprises a second air outlet connected to the heat exchange cavity, and the second air outlet is arranged above the first air outlet; The duct forming member has a second duct located above the first duct, and the duct forming member is configured so that the outlet of the second duct faces the second air outlet to discharge the heat exchange airflow formed in the second duct toward the second air outlet.

9. The vertical air conditioner indoor unit according to claim 8, characterized in that: The rear side of the housing is also provided with an air inlet; The vertical air conditioner indoor unit also includes: The heat exchanger is arranged in the heat exchange cavity and is located at the rear side of the air duct forming member to exchange heat with the air entering the heat exchange cavity from the air inlet.

10. The vertical air conditioner indoor unit according to claim 9, characterized in that: Also includes: The second fan is arranged in the second air duct to facilitate the formation of a heat exchange airflow that exchanges heat with the heat exchanger and is discharged toward the second air outlet.

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