Ceiling machine

Abstract

The utility model relates to the technical field of air conditioning equipment, in particular to a ceiling unit, an indoor unit of the ceiling unit comprises a machine shell, and a machine shell containing cavity is formed in the machine shell; the panel is arranged opposite to the top plate, and the panel is provided with a machine shell air inlet and a machine shell air outlet; a heat exchanger; the centrifugal fan is arranged in the machine shell containing cavity, and the heat exchanger is arranged on the periphery of the centrifugal fan in a surrounding mode; a fan motor includes: an inner stator; the outer rotor is connected with the centrifugal fan; the motor fixing shaft is arranged in the inner stator in a penetrating manner, and the motor fixing shaft is provided with a clamping part; the self-locking structure is arranged on the top plate and comprises a fixed bracket; the locking piece is movably arranged in the fixing support and can move between a locking position and an unlocking position, and when the locking piece is located at the locking position, the locking piece is matched with the clamping part in a clamping mode so as to prevent the motor fixing shaft from moving in the axial direction of the motor fixing shaft. According to the technical scheme, the motor and the top plate are connected without screws, assembly is convenient, and rapid installation is achieved.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, and more particularly to a ceiling-mounted air conditioning unit. Background Technology

[0002] An air conditioner, also known as an air conditioner, is a device that uses artificial means to regulate and control parameters such as temperature, humidity, and airflow of the air inside a building or structure.

[0003] Currently, more and more people are choosing to install air conditioners indoors to regulate the temperature of the indoor air. Ceiling-mounted air conditioners are one type of air conditioner, and recessed ceiling-mounted units are mainly used in large spaces such as offices, classrooms, and shopping malls. They have the advantages of small footprint and good cooling / heating performance, making them very popular with users.

[0004] In the existing technology, when installing the motor between the ceiling machine and the ceiling plate, the motor is installed on the base, and then the base and the ceiling plate are connected by bolts or other fasteners. This makes the installation method of installing the motor and the ceiling plate cumbersome. When using bolts to connect the stator base and the ceiling plate, precise alignment is required for assembly, resulting in low assembly efficiency. Utility Model Content

[0005] This application discloses a ceiling motor that can connect the motor to the ceiling plate without the use of screws, making assembly convenient and enabling rapid installation of the motor and the ceiling plate.

[0006] To achieve the above objectives, some embodiments of this application provide a ceiling-mounted air conditioner, comprising: an indoor unit, the indoor unit including: a casing, the casing forming a casing cavity, the casing including: a top plate for connecting to the top of the room; a panel opposite to the top plate, the panel having a casing air inlet and a casing air outlet; a heat exchanger disposed within the casing cavity; a centrifugal fan disposed within the casing cavity, the centrifugal fan's shaft extending vertically, the heat exchanger surrounding the periphery of the centrifugal fan, the centrifugal fan for drawing airflow into the casing from the casing air inlet and blowing the heat-exchanged airflow out of the room from the casing air outlet; and a fan motor. The device includes: an inner stator; an outer rotor, which is arranged around the inner stator and can rotate relative to the inner stator, and is connected to the centrifugal fan; a motor fixed shaft, which passes through the inner stator and has a locking part; and a self-locking structure, which is disposed on the top plate, and the motor fixed shaft is connected to the top plate through the self-locking structure. The self-locking structure includes: a fixed bracket, which is connected to the top plate; and a locking member, which is movably disposed within the fixed bracket and can move between a locked position and an unlocked position. When the locking member is in the locked position, it engages with the locking part to prevent the motor fixed shaft from moving along its axial direction.

[0007] This reduces the number of steps involved in installing the fan motor, improving installation efficiency. Furthermore, no additional tools are required for installation, making the process more convenient.

[0008] In some embodiments of this application, the snap-fit ​​portion includes an annular groove arranged around the motor fixing shaft, and the locking member includes a plurality of locking members distributed circumferentially along the motor fixing shaft. Each locking member has a locking end. When the plurality of locking members are in the locking position, the locking ends of the plurality of locking members extend into the annular groove and abut against the top wall of the annular groove along the axial direction of the motor fixing shaft.

[0009] This design prevents axial displacement of the motor mounting shaft, ensuring it is stably fixed to the top plate and will not loosen or detach due to axial forces, thus improving connection reliability. Furthermore, multiple locking elements ensure that the motor mounting shaft is subjected to uniform constraint force in the circumferential direction, avoiding uneven force distribution and connection instability issues that may occur with single-point locking. Even if the fan motor vibrates or shakes during operation, the multiple locking elements work together to ensure the stable fixation of the motor mounting shaft.

[0010] In some embodiments of this application, the self-locking structure further includes a reset member disposed within the fixed bracket, the reset member being used to hold the locking member in the locked position.

[0011] Thus, when installing the motor mounting shaft, the presence of the reset component allows the locking component to automatically remain in the locked position, preventing the locking component from accidentally moving to the unlocked position due to vibration, external force, or other factors. This, in turn, prevents the motor mounting shaft from accidentally loosening or falling off, improving the reliability of the connection.

[0012] In some embodiments of this application, the self-locking structure further includes: a guide member disposed within the fixed bracket and arranged along the movement direction of the locking member; the reset member includes a spring sleeved on the guide member, one end of the spring abutting against the locking member, and the other end of the spring abutting against the side wall of the fixed bracket.

[0013] Thus, when the locking element moves between the locked and unlocked positions, the guide element ensures that it moves along a predetermined track, preventing the locking element from deviating or jamming during movement, thereby improving the stability and reliability of the self-locking structure.

[0014] In some embodiments of this application, the locking member is provided with a first stop portion, and the fixed bracket is provided with a second stop portion. The first stop portion and the second stop portion are arranged opposite to each other along the movement direction of the locking member. When the first stop portion and the second stop portion abut against each other along the movement direction of the locking member, the locking member is located in the locking position, so that a preset gap is formed between the locking ends of the plurality of locking members located in the locking position.

[0015] In this way, the movement range of the locking components can be controlled by the first stop and the second stop, preventing the locking ends of multiple locking components from colliding with each other due to excessive movement, which helps to protect the structural integrity of the locking components and extend their service life.

[0016] In some embodiments of this application, the lower edge of the locking end is provided with a first guide surface, which is configured to guide the plurality of locking members to move toward the unlocking position when the motor fixed shaft extends between the plurality of locking members.

[0017] In this way, the motor fixing shaft does not need to be precisely aligned with the position of the locking component, and can be easily inserted between multiple locking components, reducing the installation difficulty and improving the installation efficiency.

[0018] In some embodiments of this application, the upper end face of the motor fixing shaft is provided with a second guide surface, which is configured to guide the plurality of locking members to move toward the unlocking position when the motor fixing shaft extends between the plurality of locking members.

[0019] This makes it easier to insert the motor mounting shaft between multiple locking components.

[0020] In some embodiments of this application, the top plate is provided with a clearance groove, the clearance groove extends along the movement direction of the locking member, and the locking member is provided with a lever on the side near the top plate, the part of the lever passing through the clearance groove.

[0021] In this way, when installing or removing the motor mounting shaft, the operator can directly push the locking mechanism to move using a lever, which facilitates the unlocking and locking of the locking mechanism without the need for additional tools or complicated disassembly steps, thus improving the efficiency of installation and maintenance.

[0022] In some embodiments of this application, the top plate is further provided with a maintenance plate positioning hole. When the locking member is in the unlocked position, the lever is in the first position, and the maintenance plate positioning hole is located close to the first position. The indoor unit further includes a maintenance plate, which is detachably connected to the maintenance plate positioning hole. When the lever is in the first position, the maintenance plate connected to the maintenance plate positioning hole abuts against the lever to prevent the locking member from moving to the locking position.

[0023] In this way, the maintenance plate can prevent the locking parts from accidentally moving to the locking position during maintenance or disassembly, making it easier for operators to perform disassembly or maintenance operations and ensuring the stability and reliability of disassembly or maintenance operations.

[0024] In some embodiments of this application, the indoor unit further includes: a vibration damping member disposed between the top plate and the inner stator, the vibration damping member including: a first abutting surface abutting against the outer peripheral wall of the inner stator; and a second abutting surface abutting against the top of the inner stator.

[0025] Thus, through the contact between the first contact surface and the outer peripheral wall of the inner stator, and the contact between the second contact surface and the top of the inner stator, the vibration damper can buffer and attenuate vibrations in both the radial and axial directions, reducing the transmission of vibrations to the top plate.

[0026] In some embodiments of this application, the vibration damping element includes a plurality of damping elements, which are arranged circumferentially around the inner stator.

[0027] Thus, using multiple damping components not only makes the damping effect more significant and further reduces the propagation of noise and vibration, but also provides multi-point constraint on the inner stator in the radial and axial directions to prevent it from swaying and shaking in the radial and axial directions. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the indoor unit disclosed in the embodiments of this application;

[0030] Figure 2 This is a bottom view of the indoor unit disclosed in the embodiments of this application;

[0031] Figure 3 This is a side view of the indoor unit disclosed in an embodiment of this application;

[0032] Figure 4 for Figure 3 Sectional view of AA;

[0033] Figure 5 This is a schematic diagram of the centrifugal fan disclosed in the embodiments of this application;

[0034] Figure 6 This is a schematic diagram of the structure of the fan motor disclosed in the embodiments of this application;

[0035] Figure 7 This is an exploded view of the fan motor disclosed in an embodiment of this application;

[0036] Figure 8 for Figure 4 A magnified view of a section at point A in the middle;

[0037] Figure 9 This is a schematic diagram of the top plate from one perspective, as disclosed in an embodiment of this application.

[0038] Figure 10 This is a schematic diagram of the self-locking structure disclosed in the embodiments of this application after it is installed with the motor fixed shaft;

[0039] Figure 11 This is a schematic diagram of the locking component disclosed in the embodiments of this application;

[0040] Figure 12 This is a schematic diagram of the self-locking structure disclosed in the embodiments of this application;

[0041] Figure 13 This is an exploded view of the self-locking structure disclosed in the embodiments of this application;

[0042] Figure 14 This is a schematic diagram of the structure of the fixed bracket disclosed in the embodiments of this application;

[0043] Figure 15This is a schematic diagram of the top plate from another perspective, as disclosed in an embodiment of this application.

[0044] Figure 16 for Figure 15 A magnified view of a section at point B in the middle;

[0045] Figure 17 This is a schematic diagram of the structure of the vibration damper and inner stator after installation, as disclosed in the embodiments of this application;

[0046] Figure 18 This is a schematic diagram of the structure of the vibration damping component disclosed in the embodiments of this application.

[0047] Explanation of reference numerals in the attached figures:

[0048] 100 - Indoor unit;

[0049] 1-Housing; 1a-Housing cavity; 11-Top plate; 11a-Allowing groove; 11b-Maintenance plate positioning hole; 12-Front panel; 12a-Housing air inlet; 12b-Housing air outlet;

[0050] 2-Heat exchanger;

[0051] 3-Centrifugal fan;

[0052] 4-Fan motor; 41-Inner stator; 42-Outer rotor; 43-Motor fixed shaft; 431-Snap-fit ​​part; 4311-Annular groove; 432-Second guide surface;

[0053] 5-Self-locking structure; 51-Fixed bracket; 511-Positioning pin; 512-Second stop; 52-Locking element; 521-Locking end; 5211-First guide surface; 522-First stop; 523-Handle; 53-Reset element; 531-Spring; 54-Guide element;

[0054] 6-Repair board;

[0055] 7-Vibration damping component; 71-First contact surface; 72-Second contact surface. Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0057] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0058] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0059] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0060] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0061] As people increasingly pursue higher quality indoor environments, air conditioning has become an essential device to meet these needs. Air conditioning, or air conditioner, uses artificial means to regulate and control parameters such as temperature, humidity, and airflow within a building or structure, thereby adjusting indoor air parameters and bringing convenience to daily life.

[0062] Nowadays, with improved living standards and changing aesthetic values, people not only value the basic performance of air conditioners, but also pay attention to their appearance and coordination with interior decoration styles, cost-effectiveness, and aesthetics after installation.

[0063] Ceiling-mounted air conditioners, a type of air conditioner, are typically installed within the ceiling, with the indoor unit concealed and only the supply and return air vents visible in the room. This concealed installation avoids the space-consuming problem of traditional air conditioners, maintaining the overall aesthetics of the interior design. Suitable for various apartment layouts and decorating styles, whether small or large, modern minimalist or classic Chinese, ceiling-mounted units blend seamlessly. Furthermore, they feature multi-directional airflow, allowing for air delivery at different angles to meet the varying temperature and airflow needs of people in different locations. Ceiling-mounted units are also easy to install and maintain, requiring no complex procedures for repairs. Therefore, due to their aesthetic appeal, practicality, and convenience, ceiling-mounted units are becoming an increasingly popular choice for air conditioners.

[0064] The indoor unit of a ceiling-mounted air conditioner is equipped with a centrifugal fan, a fan motor, and a heat exchanger. The fan motor drives the centrifugal fan to rotate, causing airflow from outside the indoor unit to enter through the air inlet. After airflow from the centrifugal fan and heat exchange in the heat exchanger, the air is then discharged into the room through the air outlet. In related technologies, the fan motor is fixed to the ceiling plate with bolts. Precise alignment is required when connecting the stator base and the ceiling plate with bolts for assembly, which is cumbersome and inefficient.

[0065] Based on this, this application provides a ceiling machine that can connect the fan motor to the ceiling plate without the use of screws, making assembly convenient and enabling rapid installation of the motor and the ceiling plate.

[0066] The present technical solution will be further described below with reference to the embodiments and accompanying drawings.

[0067] Please see Figure 1 and Figure 2 This application provides a ceiling-mounted air conditioner, which includes an indoor unit 100. The indoor unit 100 is an important component of the ceiling-mounted air conditioner and performs an air conditioning cycle using an air supply system and a related heat exchange system. This cycle encompasses a series of processes, including air intake, heat exchange, airflow propulsion, and temperature regulation, thereby providing a suitable temperature and air quality for the indoor space. A strong airflow is generated by the air supply system to draw indoor air into the ducted air conditioner. The intake air then flows through the heat exchange system to absorb heat from the air, achieving a cooling effect, and transferring the heat to the refrigerant through the heat exchange process. The cooled air, after heat exchange, is then pushed back into the indoor space by the air supply system, forming a cycle. Through this cycle, the indoor space temperature is regulated, and the indoor air quality is improved through airflow circulation, providing users with a comfortable and healthy indoor environment. In this embodiment, the indoor unit 100 is mounted on the ceiling.

[0068] The indoor unit 100 includes a housing 1, and a housing cavity 1a is formed inside the housing 1 to accommodate various components inside the indoor unit 100.

[0069] The housing 1 includes a top plate 11, which is used to mount the indoor unit 100 on the ceiling of the room.

[0070] The housing 1 also includes a panel 12, which is disposed opposite to the top plate 11. The panel 12 has a housing air inlet 12a and a housing air outlet 12b. The housing air inlet 12a is used to guide airflow into the interior of the housing 1, and the housing air outlet 12b is used to guide airflow into the room. In this embodiment, as... Figure 1 As shown, the air outlet 12b of the housing is arranged around the air inlet 12a of the housing, that is, the air inlet 12a of the housing is in the center of the panel 12, and the air outlet 12b of the housing is around the air inlet 12a of the housing.

[0071] It should be noted that the air outlet 12b of the housing can also be arranged in any direction with the air inlet 12a of the housing, and this embodiment does not make specific limitations on this.

[0072] like Figure 3 and Figure 4 As shown, the indoor unit 100 also includes a heat exchanger 2, which is disposed within the housing cavity 1a. The heat exchanger 2 is used to exchange heat with the flowing air. It utilizes the characteristic that liquid low-temperature refrigerant easily evaporates under low pressure, absorbing heat from the cooled medium to lower the temperature of the surrounding air, thus achieving a cooling effect. The cooled air, after passing through the heat exchanger 2, is returned to the room through the air supply system, providing a comfortable indoor environment. Especially in the hot summer, the cooling effect of the heat exchanger 2 can significantly reduce the indoor temperature and improve people's perceived comfort.

[0073] like Figure 5 As shown, the indoor unit 100 also includes a centrifugal fan 3, which is disposed within the housing cavity 1a, with its shaft extending vertically. A heat exchanger 2 is arranged around the outer periphery of the centrifugal fan 3. The centrifugal fan 3 draws air into the housing 1 from the housing inlet 12a and blows the heat-exchanged air out of the room from the housing outlet 12b. The centrifugal fan 3 introduces air into the housing 1, and after heat exchange in the heat exchanger 2, it returns the heat-exchanged air to the room. The centrifugal fan 3 is a backward-curved centrifugal fan, meaning it draws air axially and discharges it radially, with the discharge direction perpendicular to its axial direction.

[0074] It should be noted that the vertical direction is Figure 3 The direction from top to bottom or from bottom to top.

[0075] like Figure 6 and Figure 7 As shown, the indoor unit 100 also includes a fan motor 4, which includes an inner stator 41 and an outer rotor 42. The outer rotor 42 is arranged around the inner stator 41 and can rotate relative to the inner stator 41. The outer rotor 42 is connected to the centrifugal fan 3, and the fan motor 4 is used to drive the centrifugal fan 3 to rotate.

[0076] The fan motor 4 also includes a motor fixing shaft 43, which passes through the inner stator 41 and has a snap-fit ​​part 431.

[0077] like Figure 8 and Figure 9 As shown, the indoor unit 100 also includes a self-locking structure 5, which is disposed on the top plate 11. The motor fixing shaft 43 is connected to the top plate 11 through the self-locking structure 5. The self-locking structure 5 includes a fixing bracket 51, which is connected to the top plate 11.

[0078] like Figure 10 and Figure 11 As shown, the self-locking structure 5 also includes a locking member 52, which is movably disposed within the fixed bracket 51 and can move between the locked position and the unlocked position. When the locking member 52 is in the locked position, the locking member 52 engages with the snap-fit ​​part 431 to prevent the motor fixed shaft 43 from moving along its axial direction.

[0079] In related technologies, connecting the fan motor 4 to the top plate 11 with bolts requires precise alignment for assembly, which is cumbersome and inefficient. However, in this application, installation is simple: apply a certain force to the motor mounting shaft 43 and insert it into the self-locking structure 5 of the top plate 11, causing the locking member 52 and the snap-fit ​​portion 431 of the motor mounting shaft 43 to engage, thus completing the installation of the fan motor 4. Therefore, the number of steps is reduced, and installation efficiency is improved. Furthermore, no additional tools are required for installation, making the operation more convenient.

[0080] Furthermore, the use of the self-locking structure 5 facilitates subsequent maintenance and repair. When maintenance or replacement of the fan motor 4 is required, simply move the locking part 52 from the locked position to the unlocked position to easily remove the motor fixing shaft 43 and the fan motor 4, without having to disassemble a large number of screws or other fasteners, thus reducing maintenance time and workload.

[0081] In some embodiments, such as Figure 14 As shown, the fixed bracket 51 is provided with a positioning post 511, and the top plate 11 is provided with a positioning hole (not shown in the figure). The positioning post 511 passes through the positioning hole of the top plate 11, and the fixed bracket 51 and the top plate 11 are connected by fasteners.

[0082] The engagement of the positioning post 511 with the positioning hole precisely determines the relative position between the fixed bracket 51 and the top plate 11, ensuring quick and accurate alignment during installation. This improves installation efficiency and reduces installation errors or adjustment time caused by positional deviations. After the positioning post 511 passes through the positioning hole in the top plate 11, the fixed bracket 51 is connected to the top plate 11 by fasteners, providing not only precise positioning but also increased connection strength. The combined effect of the positioning post 511 and the fasteners makes the connection between the fixed bracket 51 and the top plate 11 more robust, capable of withstanding greater external forces and vibrations, thus improving the stability and reliability of the structure.

[0083] In some embodiments, combined with Figure 7 and Figure 11 The snap-fit ​​part 431 includes an annular groove 4311 arranged around the motor fixed shaft 43. The locking member 52 includes a plurality of locking members 52 distributed along the circumference of the motor fixed shaft 43. Each locking member 52 is provided with a locking end 521. When the plurality of locking members 52 are in the locked position, the locking ends 521 of the plurality of locking members 52 extend into the annular groove 4311 and abut against the top wall of the annular groove 4311 along the axial direction of the motor fixed shaft 43.

[0084] The annular groove 4311 of the snap-fit ​​part 431 and the locking end 521 of the locking member 52 extend into the annular groove 4311 and abut against the top wall of the annular groove 4311, which can prevent the motor fixed shaft 43 from displacing axially. This ensures that the motor fixed shaft 43 is stably fixed on the top plate 11 and will not loosen or fall off due to axial force, thus improving the reliability of the connection. Furthermore, the multiple locking members 52 ensure that the motor fixed shaft 43 is subjected to uniform constraint force in the circumferential direction, avoiding the problems of uneven force and unstable connection that may be caused by single-point locking. Even if the fan motor 4 vibrates or shakes during operation, the multiple locking members 52 can work together to ensure the stable fixation of the motor fixed shaft 43.

[0085] It should be noted that, in addition to the annular groove 431, the snap-fit ​​part 431 described in the above embodiment can also be a snap-fit ​​groove spaced apart along the outer periphery of the motor fixed shaft 43. The locking ends 521 of the multiple locking members 52 are provided with snap hooks. The motor fixed shaft 43 is fixed along the axial direction by snap-fitting the snap hooks with the snap-fit ​​grooves. This embodiment does not make specific limitations on this.

[0086] In some embodiments, such as Figure 10 and Figure 12 As shown, the self-locking structure 5 also includes a reset member 53, which is disposed in the fixed bracket 51 and is used to hold the locking member 52 in the locked position.

[0087] The reset member 53 is typically elastic, applying a continuous elastic force to the locking member 52 when it is in the locked position. This elastic force enhances the locking force between the locking member 52 and the latching part 431, making the latching between the motor fixed shaft 43 and the locking member 52 tighter and further improving the connection's robustness.

[0088] During the operation of the indoor unit 100, the operation of the centrifugal fan 3 and vibrations from the external environment may interfere with the locking component 52. The presence of the reset component 53 ensures the stability of the locking component 52 in the locked position. Therefore, the reset component 53 prevents the locking component 52 from accidentally moving to the unlocked position due to vibration, external forces, or other factors, thereby preventing the motor fixing shaft 43 from accidentally loosening or falling off, and improving the reliability of the connection. Furthermore, the reset component 53 automatically holds the locking component 52 in the locked position, eliminating the need for additional operations to fix the locking component 52, simplifying the installation process and improving installation efficiency.

[0089] In some embodiments, such as Figure 12 and Figure 13 As shown, the self-locking structure 5 also includes a guide member 54, which is disposed within the fixed bracket 51 and is arranged along the movement direction of the locking member 52.

[0090] The reset member 53 includes a spring 531, which is sleeved on the guide member 54. One end of the spring 531 abuts against the locking member 52, and the other end of the spring 531 abuts against the side wall of the fixed bracket 51.

[0091] The guide member 54 can guide the movement of the locking member 52. When the locking member 52 moves between the locked position and the unlocked position, the guide member 54 can ensure that it moves along a predetermined track, avoiding the locking member 52 from deflecting or jamming during the movement, thus improving the stability and reliability of the self-locking structure 5.

[0092] Furthermore, the spring 531 is sleeved on the guide member 54, so that the guide member 54 provides stable support for the spring 531, allowing the spring 531 to remain stable during compression and extension, and to exert its elastic effect evenly, thereby keeping the locking member 52 in the locked position.

[0093] In addition, during the compression and extension of the spring 531, the guide member 54 can prevent the spring from twisting, shifting or other abnormal deformations, thereby improving the service life of the spring 531 and reducing the failure of the self-locking structure 5 due to the failure of the spring 531.

[0094] It should be noted that the reset component 53 can be the spring 531 described in the above embodiments, or it can be a gas spring, rubber or elastic plastic component. This embodiment does not make specific limitations on this.

[0095] The guide member 54 can be a guide rod or a guide stud; this embodiment does not specifically limit it.

[0096] In some embodiments, combined with Figure 11 and Figure 14 The locking member 52 is provided with a first stop portion 522, and the fixed bracket 51 is provided with a second stop portion 512. The first stop portion 522 and the second stop portion 512 are arranged opposite to each other along the movement direction of the locking member 52. When the first stop portion 522 and the second stop portion 512 abut against each other along the movement direction of the locking member 52, the locking member 52 is located in the locked position, so that a preset gap is formed between the locking ends 521 of the multiple locking members 52 located in the locked position.

[0097] When the first stop 522 abuts against the second stop 512, the locking member 52 is in the locked position. That is, the movement range of the locking member 52 can be controlled by the first stop 522 and the second stop 512, which prevents the locking ends 521 of multiple locking members 52 from colliding with each other due to excessive movement. This helps to protect the structural integrity of the locking member 52 and extend its service life.

[0098] For example, the first stop portion 522 is a stop groove, and the second stop portion 512 is a stop flange. When the stop flange and the stop groove abut against each other along the movement direction of the locking member 52, the locking member 52 is in the locked position, so that a preset gap is formed between the locking ends 521 of the plurality of locking members 52 in the locked position.

[0099] Of course, the first stop portion 522 and the second stop portion 512 can also be stop protrusions, and the two stop protrusions abut against each other along the movement direction of the locking member 52. This embodiment does not specifically limit this.

[0100] In some embodiments, combined with Figure 10 and Figure 11 The lower edge of the locking end 521 is provided with a first guide surface 5211. The first guide surface 5211 is configured to guide the multiple locking elements 52 to move towards the unlocked position when the motor fixing shaft 43 is inserted between the multiple locking elements 52. Thus, when installing the motor fixing shaft 43, it is only necessary to align the motor fixing shaft 43 in a general direction, and the first guide surface 5211 will automatically guide the locking elements 52 to the unlocked position. Therefore, the motor fixing shaft 43 does not need to be precisely aligned with the position of the locking elements 52 to be easily inserted between the multiple locking elements 52, reducing installation difficulty and improving installation efficiency.

[0101] It should be noted that, as Figure 11 As shown, the first guide surface 5211 is the chamfer of the lower edge of the locking end 521. Of course, the first guide surface 5211 can also be an inclined surface, but this embodiment does not specifically limit it.

[0102] In some embodiments, combined with Figure 7 and Figure 10 The upper end face of the motor fixed shaft 43 is provided with a second guide surface 432. The second guide surface 432 is configured to guide the multiple locking members 52 to move to the unlocked position when the motor fixed shaft 43 extends between the multiple locking members 52.

[0103] The second guide surface 432 has a similar function to the first guide surface 5211. The second guide surface 432 makes it easier for the motor fixed shaft 43 to be inserted between multiple locking parts 52.

[0104] Among them, the second guide surface 432 of the motor fixed shaft 43 is a spherical surface. Since the locking member 52 contacts the second guide surface 432 first, when the second guide surface 432 is a spherical surface, due to the guiding effect of the spherical surface, the force required during installation is smaller and the operation is simpler.

[0105] In some embodiments, such as Figure 15 and Figure 16 As shown, the top plate 11 is provided with a clearance groove 11a, which extends along the movement direction of the locking member 52. The locking member 52 is provided with a lever 523 on the side near the top plate 11 (e.g., Figure 11 As shown), part of the lever 523 passes through the clearance groove 11a.

[0106] In this way, when installing or removing the motor fixing shaft 43, the operator can directly push the locking part 52 to move using the lever 523, which facilitates the unlocking and locking operations of the locking part 52 without the need for additional tools or complicated disassembly steps, thus improving the efficiency of installation and maintenance.

[0107] Furthermore, operators can directly see the position and status of lever 523, clearly knowing how to unlock or lock it, reducing the risk of installation errors or equipment damage due to improper operation.

[0108] In some embodiments, such as Figure 16 As shown, the top plate is also provided with a maintenance plate positioning hole 11b. When the locking member 52 is in the unlocked position, the lever 523 is in the first position, and the maintenance plate positioning hole 11b is set close to the first position.

[0109] The indoor unit 100 also includes a service plate 6, which is detachably connected to the service plate positioning hole 11b. When the lever 523 is in the first position, the service plate 6 connected to the service plate positioning hole 11b abuts against the lever 523 to prevent the locking member 52 from moving to the locking position.

[0110] When operators perform maintenance or disassembly, they must first use lever 523 to move the locking member 52 from the locked position to the unlocked position before the fan motor 4 can be removed from the top plate 11. However, this requires the operator to continuously operate lever 523 to prevent the locking member 52 from moving back to the locked position, increasing the difficulty of operation. In this embodiment, the maintenance plate 6 can block the locking member 52, eliminating the need for the operator to continuously operate lever 523 during disassembly or maintenance. Therefore, it prevents the locking member 52 from accidentally moving to the locked position during maintenance or disassembly, facilitating disassembly or maintenance operations and ensuring the stability and reliability of the disassembly or maintenance process.

[0111] In some embodiments, such as Figure 17 and Figure 18 As shown, the indoor unit 100 also includes a vibration damping component 7, which is disposed between the top plate 11 and the inner stator 41. The vibration damping component 7 includes a first abutting surface 71 and a second abutting surface 72. The first abutting surface 71 abuts against the outer peripheral wall of the inner stator 41, and the second abutting surface 72 abuts against the top of the inner stator 41.

[0112] The vibration damper 7 is located between the top plate and the inner stator, and can directly absorb the vibration generated by the inner stator 41 during operation. Through the contact between the first contact surface 71 and the outer peripheral wall of the inner stator 41, and the contact between the second contact surface 72 and the top of the inner stator 41, the vibration damper 7 can buffer and attenuate the vibration from the radial and axial directions, reducing the transmission of vibration to the top plate 11.

[0113] In some embodiments, such as Figure 17 As shown, the vibration damping element 7 comprises multiple elements, which are arranged circumferentially around the inner stator 41. In this way, the multiple vibration damping elements 7 form multiple support points for the inner stator 41, which can disperse the vibration generated by the inner stator 41 during operation, allowing the vibration energy to be distributed and attenuated among the multiple vibration damping elements 7. Therefore, using multiple vibration damping elements 7 not only makes the vibration reduction effect more significant and further reduces the propagation of noise and vibration, but also provides multi-point constraint on the inner stator 41 in the radial and axial directions, preventing its swaying and shaking in the radial and axial directions.

[0114] It is worth noting that the vibration damping component 7 can be a rubber pad, polyurethane, or other materials that can absorb vibration; this embodiment does not limit this.

[0115] For example, when the damper 7 is a rubber pad, the high elasticity of the rubber material allows it to absorb and disperse the vibration energy generated by the inner stator 41 during operation, thereby reducing the vibration of the fan motor 4 during operation. Furthermore, the rubber material has good impact resistance, enabling it to maintain its shape and performance stability under external impact, further protecting the top plate 11 from damage. In addition, the damping properties of the rubber pad can reduce vibration transmission, thereby reducing noise generated by vibration.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A ceiling machine, characterized in that, include: Indoor unit, the indoor unit includes: A housing, wherein a housing receiving cavity is formed within the housing, the housing comprising: A top panel, which is used to connect to the interior ceiling; A panel is provided opposite to the top plate, and the panel is provided with an air inlet and an air outlet for the housing. A heat exchanger, wherein the heat exchanger is disposed within the housing cavity; A centrifugal fan is disposed within the housing cavity, and the rotating shaft of the centrifugal fan extends vertically. The heat exchanger is disposed around the outer periphery of the centrifugal fan. The centrifugal fan is used to draw airflow into the housing from the housing air inlet and blow the heat-exchanged airflow out of the room from the housing air outlet. Fan motor, the fan motor comprising: inner stator; An outer rotor is arranged around the inner stator and can rotate relative to the inner stator. The outer rotor is connected to the centrifugal fan. A motor fixing shaft passes through the inner stator and has a snap-fit ​​part; A self-locking structure is disposed on the top plate, and the motor fixed shaft is connected to the top plate through the self-locking structure. The self-locking structure includes: A fixed bracket, which is connected to the top plate; A locking member is movably disposed within the fixed bracket and is capable of moving between a locked position and an unlocked position. When the locking member is in the locked position, it engages with the latching part to prevent the motor fixed shaft from moving along its axial direction.

2. The ceiling machine according to claim 1, characterized in that, The snap-fit ​​portion includes an annular groove arranged around the motor fixed shaft. The locking member includes multiple locking members distributed circumferentially along the motor fixed shaft. Each locking member has a locking end. When the multiple locking members are in the locking position, the locking ends of the multiple locking members extend into the annular groove and abut against the top wall of the annular groove along the axial direction of the motor fixed shaft.

3. The ceiling machine according to claim 1, characterized in that, The self-locking structure also includes: A reset member is disposed within the fixed bracket and is used to hold the locking member in the locked position.

4. The ceiling machine according to claim 3, characterized in that, The self-locking structure also includes: A guide member is disposed within the fixed bracket and is arranged along the movement direction of the locking member; The reset component includes a spring, which is sleeved on the guide component. One end of the spring abuts against the locking component, and the other end of the spring abuts against the side wall of the fixed bracket.

5. The ceiling machine according to claim 2, characterized in that, The locking member is provided with a first stop portion, and the fixed bracket is provided with a second stop portion. The first stop portion and the second stop portion are arranged opposite to each other along the movement direction of the locking member. When the first stop portion and the second stop portion abut against each other along the movement direction of the locking member, the locking member is located in the locking position, so that a preset gap is formed between the locking ends of the plurality of locking members located in the locking position.

6. The ceiling machine according to claim 2, characterized in that, The lower edge of the locking end is provided with a first guide surface, which is configured to guide the plurality of locking members to move toward the unlocking position when the motor fixed shaft extends between the plurality of locking members; and / or, The upper end face of the motor fixing shaft is provided with a second guide surface, which is configured to guide the plurality of locking members to move toward the unlocking position when the motor fixing shaft extends between the plurality of locking members.

7. The ceiling machine according to claim 1, characterized in that, The top plate is provided with a clearance groove, which extends along the movement direction of the locking member. The locking member is provided with a lever on the side near the top plate, and part of the lever passes through the clearance groove.

8. The ceiling machine according to claim 7, characterized in that, The top plate is also provided with a maintenance plate positioning hole. When the locking member is in the unlocked position, the lever is in the first position, and the maintenance plate positioning hole is located close to the first position. The indoor unit also includes: The maintenance plate is detachably connected to the maintenance plate positioning hole. When the lever is in the first position, the maintenance plate connected to the maintenance plate positioning hole abuts against the lever to prevent the locking member from moving to the locking position.

9. The ceiling machine according to claim 1, characterized in that, The indoor unit also includes: A vibration damper, disposed between the top plate and the inner stator, comprises: The first abutting surface abuts against the outer peripheral wall of the inner stator; The second abutting surface abuts against the top of the inner stator.

10. The ceiling machine according to claim 9, characterized in that, The vibration damping components include multiple components, which are arranged circumferentially around the inner stator.

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