A lifting type air conditioner indoor unit

Abstract

The present invention provides a lifting type air conditioner indoor unit, comprising: a shell, a heat exchange component and an air supply fan are arranged inside, the air supply fan is configured to generate a circulating airflow that enters the shell and exchanges heat with the heat exchange component and then exits the shell; a lifting mechanism, which is respectively connected to the shell and the top wall of the room and is configured to adjust the vertical height of the shell relative to the top wall. When the indoor unit needs to be installed, it is not necessary to lift the shell of the indoor unit for installation, and it is only necessary to connect the lifting mechanism with the top wall of the room and the shell of the indoor unit, and then let the lifting mechanism lift the shell of the indoor unit, thereby reducing the installation difficulty of the operator. At the same time, when the indoor unit needs to be repaired, the operator does not need to use an escalator, and only needs to let the lifting mechanism lower the shell of the air conditioner indoor unit to a suitable vertical height. The worker does not need to look up when repairing, thereby reducing the difficulty of repair.

Description

Technical Field

[0001] The invention relates to refrigeration equipment, in particular to a lifting type air-conditioning indoor unit. Background Art

[0002] Air conditioner indoor units are divided into cabinet units, wall units and ceiling units. Existing ceiling units are hoisted on the ceiling of the room, and the hoisting structure is fixed. When installing or repairing ceiling units, it is necessary to use a ladder light device to assist in the installation, and the operator needs to look up to operate, so the installation process is very cumbersome. Summary of the invention

[0003] An object of the present invention is to provide a lift type air conditioner indoor unit which is easy to install and maintain.

[0004] In particular, the present invention provides a lifting type air conditioner indoor unit, comprising:

[0005] A shell having a heat exchange component and an air supply fan disposed therein, wherein the air supply fan is configured to generate a circulating airflow that enters the shell and exchanges heat with the heat exchange component and then exits the shell;

[0006] The lifting mechanism includes a lifting rope and a winding part, wherein the first end of the lifting rope is connected to the top wall in the room, and the second end is wound around the winding part, the winding part is connected to the shell, and the winding part is configured to increase the vertical height of the shell relative to the top wall by increasing the winding length of the lifting rope, and to decrease the vertical height of the shell relative to the top wall by reducing the winding length of the lifting rope.

[0007] Further, the winding portion is arranged in the housing;

[0008] The shell comprises an upper top plate, which is provided with a rope guide hole. The suspension rope passes through the rope guide hole from the top wall downwards and then extends into the shell.

[0009] Furthermore, the number of the rope guide holes is not less than three, the number of the suspension ropes is the same as the number of the rope guide holes, and each suspension rope passes through each rope guide hole one by one.

[0010] Furthermore, the suspension rope includes an external segment located outside the shell, the external segment of each suspension rope is arranged obliquely, and the extension lines of the external segment of each suspension rope intersect at the same intersection, and the projection of the intersection on the horizontal plane coincides with the projection of the centroid of the upper top plate on the horizontal plane.

[0011] Further, the intersection point is located above the upper top plate.

[0012] Furthermore, a pulley abutting against the sling rope is provided at the rope guide hole, and the pulley is configured to push the sling rope away from the edge of the rope guide hole so that the sling rope does not generate sliding friction with the edge of the rope guide hole.

[0013] Further, the winding portion comprises:

[0014] A winding wheel, wherein the second end of the suspension rope is wound around a circumferential side wall of the winding wheel;

[0015] The driving motor is connected to the housing and is used to drive the reel to rotate. The driving motor is configured to change the length of the suspension rope wound on the reel by changing the driving direction of the reel, thereby causing the housing to rise or fall relative to the top wall.

[0016] Further, the wire reel is positioned on the rotating shaft of the driving motor.

[0017] Furthermore, the rotation axis of the wire reel is perpendicular to the upper top plate.

[0018] Furthermore, it also includes:

[0019] The remote control device is configured to wirelessly control the lifting mechanism, thereby wirelessly controlling the vertical height of the housing relative to the top wall.

[0020] The indoor unit of the air conditioner in the present invention is provided with a lifting mechanism, and the lifting mechanism can control the shell of the indoor unit to rise or fall relative to the indoor ceiling wall. In this way, when the indoor unit needs to be installed, it is not necessary to lift the shell of the indoor unit for installation. It is only necessary to connect the lifting mechanism with the indoor ceiling wall and the shell of the indoor unit, and then let the lifting mechanism lift the shell of the indoor unit, thereby reducing the installation difficulty of the operator. At the same time, when the indoor unit needs to be repaired, the operator does not need to use an escalator, but only needs to let the lifting mechanism lower the shell of the indoor unit of the air conditioner to a suitable vertical height. The worker does not need to look up when repairing, thereby reducing the difficulty of repair.

[0021] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, 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 perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0024] Figure 2 is a schematic three-dimensional diagram of an upper top plate and a lifting mechanism of an air-conditioning ceiling unit after being assembled according to an embodiment of the present invention;

[0025] Figure 3 is a schematic three-dimensional diagram of a lifting mechanism according to an embodiment of the present invention;

[0026] Figure 4 is a schematic perspective view of an air conditioner indoor unit according to another embodiment of the present invention;

[0027] Figure 5 is a schematic three-dimensional diagram of a lifting mechanism according to another embodiment of the present invention;

[0028] Figure 6 is a schematic three-dimensional diagram of an upper top plate and a lifting mechanism of an air-conditioning ceiling unit after being assembled according to another embodiment of the present invention;

[0029] Figure 7 is a schematic front view of an air conditioner indoor unit according to yet another embodiment of the present invention;

[0030] Figure 8 is a schematic front view of an air conditioner indoor unit according to another embodiment of the present invention;

[0031] Fig. 9 is a schematic elevation perspective view according to yet another embodiment of the present invention;

[0032] Fig.10 is a schematic perspective view of an air conditioner indoor unit according to another embodiment of the present invention;

[0033] Fig.11 It is a schematic elevation perspective view according to yet another embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. In particular, when the following components have two opposite ends along their length, the term "first end" refers to one of the ends of the component; the term "second end" refers to the end opposite to the first end.

[0035] like Figures 1 to 11 Shown is a preferred embodiment of the present invention.

[0036] The present invention provides a lifting type air conditioner indoor unit 100, which can be a ceiling unit or a wall-mounted unit that is attached to the vertical wall of the room but is suspended. The air conditioner indoor unit 100 includes a shell and a lifting mechanism. A heat exchange component and an air supply fan are arranged inside the shell. The air supply fan draws the airflow outside the shell into the shell to exchange heat with the heat exchange component, and guides the airflow after heat exchange out of the shell. The shell can also have structures such as a water receiving tray, a filter screen, and an air guide plate. Such components have been disclosed in the prior art and are not described here. The lifting mechanism is respectively connected to the shell and the indoor top wall 200 (the lifting mechanism can be directly connected to the indoor top wall 200 or indirectly connected to the indoor top wall 200 through an intermediate mechanism. For example, the upper end of the lifting mechanism is connected to a fixed bracket, and the fixed bracket is fixed to the indoor top wall 200. Such a connection method can also be called that the lifting mechanism is connected to the indoor top wall 200), and the lifting mechanism is configured to adjust the vertical height of the shell relative to the top wall 200.

[0037] When the indoor unit 100 needs to be installed, it is not necessary to lift the shell of the indoor unit 100 for installation. It is only necessary to connect the lifting mechanism to the indoor ceiling 200 and the shell of the indoor unit 100, and then use the lifting mechanism to lift the shell of the indoor unit 100, which reduces the installation difficulty for the operator. At the same time, when the indoor unit 100 needs to be repaired, the operator does not need to use an escalator, but only needs to let the lifting mechanism lower the shell of the air conditioner indoor unit 100 to a suitable vertical height. The worker does not need to look up when repairing, which reduces the difficulty of repair.

[0038] In one embodiment, the air conditioner indoor unit 100 may further include a remote control device, which is used to wirelessly control the lifting mechanism, thereby wirelessly controlling the vertical height of the housing relative to the top wall 200. The remote control device can be integrated with a remote control for controlling the air outlet size and air outlet temperature of the air conditioner, so that the remote control has more functions and a more compact structure. When the remote control device is integrated with the remote control of the air conditioner, when the air conditioner ceiling unit needs to be repaired, the lifting device can lower the housing of the air conditioner indoor unit 100 to a height at which the worker can more conveniently inspect the air conditioner indoor unit 100 by pressing a button on the remote control. The specific height can be temporarily controlled depending on the height and operating habits of the maintenance worker.

[0039] The lifting mechanism may be any existing mechanism that can lift or lower the height of the housing of the indoor unit 100. In a specific embodiment, the lifting mechanism may include a suspension rope 121 and a winding portion, the winding portion being connected to the housing and configured to adjust the vertical height of the housing relative to the top wall 200 by winding or releasing the second end of the suspension rope 121. The winding portion may include a wire reel 122 and a drive motor 123. The first end of the suspension rope 121 is directly or indirectly connected to the indoor top wall 200, and the second end is wound around the circumferential side wall of the wire reel 122. The drive motor 123 is connected to the housing and is used to drive the wire reel 122 to rotate. When the wire reel 122 rotates, the length of the suspension rope 121 wound around its circumferential wall will change. When the length of the hanging rope 121 wound on the winding wheel 122 becomes longer, it can drive the shell of the indoor unit 100 to rise relative to the indoor top wall 200; when the length of the hanging rope 121 wound on the winding wheel 122 becomes shorter, it can make the shell of the indoor unit 100 descend relative to the indoor top wall 200.

[0040] In order to prevent external foreign matter from getting stuck in the wire reel 122 and causing the lifting mechanism to malfunction, the wire reel 122 can be set in the housing of the indoor unit 100. When the wire reel 122 is set in the housing of the indoor unit 100, the wire reel 122 can be positioned on the inner wall surface of the housing of the air conditioner indoor unit 100, or can be directly positioned on the shaft of the drive motor 123. When the wire reel 122 is positioned on the inner wall surface of the housing of the indoor unit 100, the drive motor 123 can drive the wire reel 122 to rotate through the transmission device; when the wire reel 122 is connected to the shaft of the drive motor 123, it is directly driven by the drive motor 123.

[0041] In one embodiment, the drive motor 123 can drive the reel 122 to rotate through a reduction device, which can reduce the performance requirements of the motor, because when the motor speed is reduced by the reduction device and then driven, even if the motor speed is uneven, it will not cause excessive oscillation when the indoor unit 100 shell rises or falls. In addition, the reduction device will increase the output torque, so when the torque is applied to the output end of the reduction device, the torque of the input end (the end connected to the drive motor 123) becomes smaller. Therefore, a simple locking device can be set to make the drive motor 123 have a self-locking function, that is, when the drive motor 123 stops driving, a smaller force is used to lock the motor shaft, which can prevent the air conditioner indoor unit 100 from naturally falling in a static state due to gravity pulling the suspension rope 121.

[0042] When the wire reel 122 is disposed on the inner side of the housing, the hanging rope 121 needs to pass through the upper top plate 110 of the housing, so the upper top plate 110 of the housing needs to be provided with a rope guide hole 111. The hanging rope 121 passes through the rope guide hole 111 downward from the top wall 200 and then extends into the housing, and is wound around the wire reel 122. Since the wire reel 122 is not necessarily disposed directly below the rope guide hole 111, the hanging rope 121 may be turned at the rope guide hole 111, and the turned hanging rope 121 will press against the edge of the rope guide hole 111, so that when the housing of the indoor unit 100 rises or falls, the hanging rope 121 will slide and rub against the edge of the rope guide hole 111, causing power loss, and in severe cases, causing the hanging rope 121 to be worn or broken. In order to prevent the above problems from occurring, in one embodiment, a pulley 112 abutting against the suspension rope 121 may be provided at the rope guide hole 111, and the pulley 112 is configured so that the suspension rope 121 does not generate sliding friction with the edge of the rope guide hole 111. That is, the pulley 112 pushes the suspension rope 121 away from the edge of the rope guide hole 111, so that the suspension rope 121 only generates sliding friction with the pulley 112, which reduces the resistance generated during the movement of the suspension rope 121 and also prolongs the service life of the suspension rope 121. When the wire reel 122 is disposed in the housing of the indoor unit 100, the drive motor 123 may be completely located in the housing, or only the drive shaft may extend into the housing. In order to enable the drive motor 123 to fully fan heat, in one embodiment, when the wire reel 122 is located in the housing, the drive motor 123 may be positioned outside the upper top plate 110 of the housing, and its rotating shaft may extend into the housing of the indoor unit 100 to drive the wire reel 122 to rotate. Such a structure can also further save the internal space of the housing of the indoor unit 100.

[0043] When the center of gravity of the indoor unit 100 of the air conditioner is low and the mass distribution is uniform, a single hanging rope 121 can realize the stable rise and fall of the indoor unit 100. Since there are many components in the shell of the indoor unit 100, it is difficult to evenly arrange its mass. In order to enable the shell of the indoor unit 100 to rise and fall stably, in one embodiment, the number of the rope guide holes 111 is not less than three, the number of the hanging ropes 121 is the same as the number of the rope guide holes 111, and each hanging rope 121 passes through each rope guide hole 111 one by one. When there are multiple rope guide holes 111 on the upper top plate 110 of the indoor unit 100, a pulley 112 can be arranged at each rope guide hole 111 to prevent the corresponding hanging rope 121 from rubbing against the edge of the rope guide hole 111. In addition, the multiple hanging ropes 121 extending into the shell can be individually wound on a winding wheel 122, or all the hanging ropes 121 can be wound on the same winding wheel 122. In particular, when the number of the suspension ropes 121 wound on a reel 122 is one or two, the arrangement orientation of the reel 122 and the arrangement angle of its rotation axis are not limited. When the number of the suspension ropes 121 wound on a reel 122 is three or more, in order to facilitate all the suspension ropes 121 to be wound on one reel 122, the rotation axis of the reel 122 can be arranged perpendicular to the upper top plate 110, and all the suspension ropes 121 extend vertically from the top wall 200 in the room into the shell, turn at the rope guide hole 111 and extend horizontally to the reel 122. Such an arrangement of the reel 122 allows more suspension ropes 121 to be wound on it.

[0044] In one embodiment, the number of the guide rope holes 111 may be four, and the number of the wire reel 122 may be one. Figure 1-3 As shown, the upper top plate 110 of the shell is rectangular, and the upper top plate 110 has four rope guide holes 111, and the four rope guide holes 111 are respectively arranged at the four corners of the upper top plate 110. The lifting mechanism has four hanging ropes 121, and the second ends of the four hanging ropes 121 are all coiled on the same wire reel 122, and the wire reel 122 is arranged in the shell, and its rotation axis is perpendicular to the upper top plate 110 of the shell of the indoor unit 100, and is arranged at the center (centroid) position of the horizontal projection of the upper top plate 110. When the wire reel 122 coiled with the four hanging ropes 121 rotates, the winding lengths of the four hanging ropes 121 on the wire reel 122 increase or decrease at the same time. Correspondingly, when this wire reel 122 rotates, the shell of the indoor unit 100 rises or falls relative to the indoor top wall 200. The four hanging ropes 121 allow the housing of the indoor unit 100 to have four lifting points, so that the positioning of the indoor unit 100 is more stable. Even if the total mass of the components in the housing of the indoor unit 100 is unevenly distributed, it can be stably lifted or lowered.

[0045] In another embodiment, the number of the guide rope holes 111 may be four, and the number of the winding wheels 122 may be two. Figure 4-6 As shown, the upper top plate 110 of the housing is rectangular, and the upper top plate 110 has four rope guide holes 111. The four rope guide holes 111 are respectively arranged at the four corners of the upper top plate 110. Specifically, the four rope guide holes 111 can be respectively located at the four vertices of a rectangle, and the rectangle surrounded by the four rope guide holes 111 is arranged concentrically with the rectangular outline of the upper top plate 110. The lifting mechanism includes four suspension ropes 121, a first reel 122, a second reel, a first drive motor 123 and a second drive motor. The first ends of the four suspension ropes 121 are all connected to the top wall 200, and the second ends are all downwardly passed through the four rope guide holes 111 one by one and extended into the housing. The first reel 122 is disposed in the housing, the first reel 122 is disposed between two adjacent rope guide holes 111, and the second ends of the two suspension ropes 121 pass through the two rope guide holes 111 close to the first reel 122 one by one and are then coiled around the circumferential side wall of the first reel 122. The second reel is disposed in the housing, the second reel is disposed between the other two adjacent rope guide holes 111, and the second ends of the other two suspension ropes 121 pass through the two rope guide holes 111 close to the second reel one by one and are then coiled around the circumferential side wall of the second reel. The first drive motor 123 is connected to the housing, used to drive the first reel 122 to rotate, and is configured to change the length of the suspension rope 121 coiled on the first reel 122 by changing the driving direction of the first reel 122. The second driving motor is connected to the housing, and is used to drive the second reel to rotate. The second driving motor is configured to change the length of the suspension rope 121 wound on the second reel by changing the driving direction of the second reel.

[0046] The suspension rope 121 includes an outer section located outside the housing of the indoor unit 100 and an inner section located inside the housing of the indoor unit 100. The outer section and the inner section of the suspension rope 121 are not absolute. For example, when the length of the suspension rope 121 wound on the reel 122 becomes longer, the part originally located at the lower end of the outer section of the suspension rope 121 will shrink to the inside of the housing and become the inner section of the suspension rope 121; when the length of the suspension rope 121 wound on the reel 122 becomes shorter, the outer end part originally located inside the suspension rope 121 will extend out of the housing of the indoor unit 100 and become the outer section of the suspension rope 121.

[0047] When the indoor unit 100 has multiple hanging ropes 121, for example, the indoor unit 100 has four hanging ropes 121. The outer sections of each hanging rope 121 can be arranged vertically, but when the outer sections of each hanging rope 121 are arranged vertically, each hanging rope 121 does not give the shell of the indoor unit 100 a limiting force in the horizontal direction. Therefore, when the shell of the air-conditioning indoor unit 100 is subjected to a horizontal thrust, even if the thrust is small, it will cause the shell of the indoor unit 100 to shake greatly. In order to solve the above-mentioned defects, in one embodiment, the outer sections of each hanging rope 121 can be arranged obliquely, and the extension lines of the outer sections of each hanging rope 121 intersect at the same point. Specifically, the projection of the intersection of the extension lines of each hanging rope 121 on the horizontal plane can coincide with the projection of the centroid of the upper top plate 110 of the shell on the horizontal plane. And, in one embodiment, as Figure 8 As shown, the intersection of the extension lines of the outer segments of each suspension rope 121 may be located above the housing of the indoor unit 100. In another embodiment, as shown in FIG. Figure 7 As shown, the intersection of the extension lines of the outer sections of each suspension rope 121 may also be located below the housing of the indoor unit 100 .

[0048] When the extension lines of the outer sections of each suspension rope 121 meet at one point, a horizontal component force will be generated at the upper end connection point of each suspension rope 121, and the magnitude of the horizontal component force will also vary due to the height of the shell relative to the indoor top wall 200. Therefore, when the upper end (i.e., the first end) of each suspension rope 121 is directly connected to the indoor top wall 200, the upper end connection point will become loose after a certain number of years of use. In order to prevent the above phenomenon from occurring, the air conditioner indoor unit 100 also includes a connecting bracket 130 connected to the indoor top wall 200. The upper end of the connecting bracket 130 is connected to the indoor top wall 200, and only a downward pulling force is generated on the indoor top wall 200, and the pulling force is relatively constant. The lower end of the connecting bracket 130 is connected to each suspension rope 121. Specifically. When there are four suspension ropes 121, the connecting bracket 130 may include four connecting plates 131, the first ends of the four connecting plates 131 meet at the same point, and the second ends (the ends opposite to the meeting point) of the four connecting plates 131 are connected to the upper end of one of the suspension ropes 121 one by one. Specifically, in order to match the layout of the four rope guide holes 111 located at the four corners of the rectangle, the four connecting plates 131 may also be arranged as follows: Fig.11 The structure shown is in the shape of a cross, and the outer end points of each connecting plate 131 are connected to the upper end of a suspension rope 121.

[0049] 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 based on the content 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 these other variations or modifications.

Claims

1. A lifting type air conditioner indoor unit, characterized in that: include: A shell having a heat exchange component and an air supply fan disposed therein, wherein the air supply fan is configured to generate a circulating airflow that enters the shell and exchanges heat with the heat exchange component and then exits the shell; A lifting mechanism, comprising a lifting rope and a winding portion, wherein a first end of the lifting rope is connected to a ceiling wall in a room, a second end of the lifting rope is wound around the winding portion, the winding portion is connected to the housing, and the winding portion is configured to increase the vertical height of the housing relative to the ceiling wall by increasing the winding length of the lifting rope, and to decrease the vertical height of the housing relative to the ceiling wall by reducing the winding length of the lifting rope; The winding portion is disposed in the housing; The housing comprises an upper top plate, the upper top plate is provided with a rope guide hole, the rope passes through the rope guide hole from the top wall downwards and then extends into the housing; a pulley is provided at the rope guide hole to abut against the rope; The number of the guide rope holes is not less than three, the number of the suspension ropes is the same as the number of the guide rope holes, and each of the suspension ropes passes through each of the guide rope holes in a one-to-one correspondence; The suspension rope includes an external segment located outside the shell, the external segment of each suspension rope is arranged obliquely, and the extension lines of the external segment of each suspension rope intersect at the same intersection, and the projection of the intersection on the horizontal plane coincides with the projection of the centroid of the upper top plate on the horizontal plane.

2. The air conditioner indoor unit according to claim 1, characterized in that: The intersection point is located above the upper top plate.

3. The air conditioner indoor unit according to claim 1, characterized in that: The pulley is configured to push the suspension rope away from the edge of the rope guide hole so that the suspension rope does not generate sliding friction with the edge of the rope guide hole.

4. The air conditioner indoor unit according to claim 1, characterized in that: The winding portion comprises: A winding wheel, wherein the second end of the suspension rope is wound around a circumferential side wall of the winding wheel; A driving motor is connected to the housing and is used to drive the reel to rotate. The driving motor is configured to change the length of the suspension rope wound on the reel by changing the driving direction of the reel, thereby causing the housing to rise or fall relative to the top wall.

5. The air conditioner indoor unit according to claim 4, characterized in that: The wire reel is positioned on the rotating shaft of the driving motor.

6. The air conditioner indoor unit according to claim 4, characterized in that: The rotation axis of the wire reel is perpendicular to the upper top plate.

7. The air conditioner indoor unit according to claim 1, characterized in that: Also includes: A remote control device is configured to wirelessly control the lifting mechanism, thereby wirelessly controlling the vertical height of the shell relative to the top wall.

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