An air conditioner split unit motor assembly system based on a multi-layer error-proof structure

Abstract

This utility model discloses an air conditioner split-type indoor unit motor assembly system based on a multi-layered error-proof structure, including a bottom shell, a first motor, a second motor, a third motor, and an electronic control board. The first motor is located in the middle of the main body of the split-type indoor unit, and the second and third motors are respectively located on the sides of the bottom shell. The system uses two first mounting ears for the first motor, two second mounting ears for the second motor, and two third mounting ears for the third motor. By utilizing the different angles of each mounting ear, and in conjunction with the corresponding mounting structure on the bottom shell, the mounting ears of each motor cannot be installed in the wrong position when the motors are installed incorrectly. This achieves physical error prevention, preventing motors of different shapes from being forcibly installed in the wrong position, forming the first line of error prevention barrier. It does not rely on manual judgment, has extremely high reliability in preventing errors, and the overall structure is practical, reliable, and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an air conditioning split-type internal unit motor assembly system based on a multi-error prevention structure. Background Technology

[0002] In the field of air conditioning technology, air conditioners typically have three motors. However, because the three motors are of the same model, they are difficult to distinguish by appearance alone, leading to confusion during assembly and incorrect motor installation. Incorrect motor installation will cause the air conditioner to malfunction, such as the air deflector not swinging or the air sweeping blades not rotating, and may even damage the motor or other components.

[0003] Existing technologies lack simple and effective error-proofing measures, relying mainly on manual identification and operation on the production line, which is prone to errors. 4. Low assembly efficiency: Due to the lack of effective error-proofing measures, the motor model and installation position need to be repeatedly confirmed during assembly, resulting in low assembly efficiency.

[0004] Although the three motors are the same model, their functions are different. For example, the air guide plate motor is used to drive the air guide plate to swing. The working state and rotation direction of each air guide plate are different. The sweeping blade motor is used to drive the sweeping blade to rotate. Due to the different functions, the three motors also have different structures, such as the direction of the motor output shaft, the mounting hole position, and the wiring harness interface. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a practical and reliable air conditioner split-type internal unit motor assembly system based on a multi-error prevention structure.

[0006] To achieve the above objectives, the present invention provides the following solution: an air conditioner split-type indoor unit motor assembly system based on a multi-layer error-proof structure, comprising a bottom shell, a first motor, a second motor, a third motor, and an electronic control board, wherein the first motor is disposed in the middle of the main body of the split-type indoor unit, and the second motor and the third motor are respectively disposed on the side of the bottom shell;

[0007] The first motor has two first hanging ears arranged symmetrically on the left and right, with an included angle of 180° between the two first hanging ears. The second motor has two second hanging ears arranged symmetrically on the left and right, with the two second hanging ears rotated symmetrically about the center point. The third motor has two third hanging ears arranged symmetrically on the left and right, with an included angle of not 180° between the two third hanging ears.

[0008] The beneficial effects of this utility model are as follows: It prevents incorrect assembly. The system uses two first lugs on the first motor, two second lugs on the second motor, and two third lugs on the third motor. By utilizing the different angles of each lug, and in conjunction with the corresponding mounting structure on the bottom shell, it ensures that if the motors are installed in the wrong position, the lugs of each motor cannot be installed accordingly. This achieves physical error prevention, preventing motors of different shapes from being forcibly installed in the wrong position, forming the first line of defense against errors. It eliminates the need for manual judgment, ensuring extremely high reliability in preventing errors. The overall structure is practical, reliable, and easy to operate.

[0009] Furthermore, the bottom shell is connected to a first air guide plate and a second air guide plate, the first motor is connected to the first air guide plate, and the second motor is connected to the second air guide plate.

[0010] Furthermore, the first motor includes a first housing, a first rotating shaft, a first bottom cover, and a first terminal block. The first bottom cover is disposed on the first housing, the first rotating shaft is disposed on the first housing, the end of the first rotating shaft is connected to the first terminal block, and the first terminal block is connected to the electronic control board. The left and right sides of the end of the first bottom cover are respectively formed with first hanging ears.

[0011] Furthermore, the first terminal block has six first wiring holes, which are arranged alternately from left to right, with the leftmost first wiring hole being blocked. By adopting the above structure, this invention ensures that the first terminal block can only be installed on the corresponding position on the control board by blocking different wiring holes.

[0012] Furthermore, the second motor includes a second housing, a second rotating shaft, a second bottom cover, and a second terminal block. The second bottom cover is disposed on the second housing, and the second rotating shaft is disposed on the second housing. The end of the second rotating shaft is connected to the second terminal block, and the second terminal block is connected to the electronic control board. The left and right sides of the end of the second bottom cover are respectively formed with second hanging ears.

[0013] Furthermore, the second terminal block has six second wiring holes, which are arranged alternately from left to right, with the second second wiring hole on the left being blocked.

[0014] Furthermore, the third motor includes a third housing, a third rotating shaft, a third bottom cover, and a third terminal block. The third bottom cover is disposed on the third housing, the third rotating shaft is disposed on the third housing, the end of the third rotating shaft is connected to the third terminal block, and the third terminal block is connected to the electronic control board. The left and right sides of the end of the third bottom cover are respectively formed with third hanging ears.

[0015] Furthermore, the third terminal block has six third wiring holes, which are arranged alternately from left to right, with the third third wiring hole on the left being blocked.

[0016] Furthermore, the first, second, and third terminals are all equipped with color-coded markings. With the above structure, this invention uses different color markings to distinguish the corresponding installation positions of the motor. Attached Figure Description

[0017] Figure 1 The overall structure of this utility model Figure 1 .

[0018] Figure 2 The overall structure of this utility model Figure 2 .

[0019] Figure 3 The overall structure of this utility model Figure 3 .

[0020] Figure 4 This is a structural diagram of the first motor of this utility model.

[0021] Figure 5 This is a structural diagram of the second motor of this utility model.

[0022] Figure 6 This is a structural diagram of the third motor of this utility model.

[0023] Wherein, 1 is the bottom shell, 2 is the first motor, 21 is the first outer shell, 22 is the first rotating shaft, 23 is the first bottom cover, 24 is the first terminal block, 25 is the first protective cover, 26 is the first protective sleeve, 27 is the first wire tie, 28 is the first hanging ear, 3 is the second motor, 31 is the second outer shell, 32 is the second rotating shaft, 33 is the second bottom cover, 34 is the second terminal block, 35 is the second protective cover, 36 is the second protective sleeve, 37 is the second wire tie, 38 is the second hanging ear, 4 is the third motor, 41 is the third outer shell, 42 is the third rotating shaft, 43 is the third bottom cover, 44 is the third terminal block, 45 is the third protective cover, 46 is the third protective sleeve, 47 is the third wire tie, and 48 is the third hanging ear. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] See appendix Figure 1 To be continued Figure 6 As shown, an air conditioner split-type indoor unit motor assembly system based on a multi-error prevention structure includes a bottom shell 1, a first motor 2, a second motor 3, a third motor 4, and an electronic control board. The first motor 2 is located in the middle of the split-type indoor unit body, and the second motor 3 and the third motor 4 are respectively located on the sides of the bottom shell 1.

[0027] The first motor 2 has two first hanging ears 28 arranged symmetrically on the left and right, with an included angle of 180° between the two first hanging ears 28. The second motor 3 has two second hanging ears 38 arranged on the left and right, with the two second hanging ears 38 rotated symmetrically about the center point. The third motor 4 has two third hanging ears 48 arranged symmetrically on the left and right, with an included angle of not 180° between the two third hanging ears 48.

[0028] In this embodiment, the bottom shell 1 is connected to a first air guide plate and a second air guide plate, the first motor 2 is connected to the first air guide plate, and the second motor 3 is connected to the second air guide plate.

[0029] In this embodiment, the first motor 2 includes a first housing 21, a first rotating shaft 22, a first bottom cover 23, a first terminal block 24, a first protective cover 25, a first protective sleeve 26, and a first wire tie 27. The first bottom cover 23 is disposed on the first housing 21, and the first rotating shaft 22 is disposed on the first housing 21. The end of the first rotating shaft 22 is connected to the first terminal block 24, and the first terminal block 24 is connected to the electronic control board. The left and right sides of the end of the first bottom cover 23 are respectively formed with first hanging ears 28. The first terminal block 24 has six first wiring holes, which are arranged alternately from left to right. The leftmost first wiring hole is blocked.

[0030] The first outer shell 21 is connected to the first cover 25 at one end. The first rotating shaft 22 passes through the first outer shell 21 and then through the first cover 25. The first sleeve 26 is fitted onto the first rotating shaft 22 for the first rotating shaft 22 to rotate. The first sleeve 26 is provided with a first wire tie 27. The first rotating shaft 22 is connected to the first air guide plate.

[0031] In this embodiment, the second motor 3 includes a second housing 31, a second rotating shaft 32, a second bottom cover 33, a second terminal block 34, a second protective cover 35, a second protective sleeve 36, and a second cable tie 37. The second bottom cover 33 is disposed on the second housing 31, and the second rotating shaft 32 is disposed on the second housing 31. The end of the second rotating shaft 32 is connected to the second terminal block 34, and the second terminal block 34 is connected to the electronic control board. The left and right sides of the end of the second bottom cover 33 are respectively formed with second hanging ears 38. The second terminal block 34 has six second wiring holes, which are arranged alternately from left to right. The second wiring hole located on the left is blocked.

[0032] The second outer shell 31 is connected to the second cover 35 at one end. The second rotating shaft 32 passes through the second outer shell 31 and continues to pass through the second cover 35. The second sleeve 36 is fitted onto the second rotating shaft 32 for the second rotating shaft 32 to rotate. The second sleeve 36 is provided with a second wire tie 37. The second rotating shaft 32 is connected to the second air guide plate.

[0033] In this embodiment, the third motor 4 includes a third housing 41, a third rotating shaft 42, a third bottom cover 43, a third terminal block 44, a third protective cover 45, a third protective sleeve 46, and a third cable tie 47. The third bottom cover 43 is disposed on the third housing 41, and the third rotating shaft 42 is disposed on the third housing 41. The end of the third rotating shaft 42 is connected to the third terminal block 44, and the third terminal block 44 is connected to the electronic control board. The left and right sides of the end of the third bottom cover 43 are respectively formed with third lugs 48. The third terminal block 44 has six third wiring holes, which are arranged alternately from left to right. The third wiring hole located on the left is blocked.

[0034] The third housing 41 is connected to the third cover 45 at one end. The third shaft 42 passes through the third housing 41 and then through the third cover 45. The third sleeve 46 is fitted onto the third shaft 42 for the third shaft 42 to rotate. The third sleeve 46 is provided with a third wire tie 47. The third motor 4 is used to drive the left and right sweeping air.

[0035] In this embodiment, the first terminal 24, the second terminal 34, and the third terminal 44 are all provided with color markings. The color marking of the first terminal 24 is white, the color marking of the second terminal 34 is red, and the color marking of the third terminal 44 is blue.

[0036] This embodiment sets up first and second level error prevention and foolproof functions: the first level of error prevention is mainly distinguished by the different colors of the first terminal 24, the second terminal 34, and the third terminal 44.

[0037] The second level of error prevention is as follows: white, red, and blue are also set at the corresponding positions on the control board to correspond to the first terminal 24, the second terminal 34, and the third terminal 44. At the same time, the first wiring hole of the first terminal 24, the second wiring hole of the second terminal 34, and the third wiring hole of the third terminal 44 are blocked, and the first pin position on the corresponding control board is empty. In this way, the first terminal 24 and the control board are accurately matched and connected. The corresponding color on the control board is also white.

[0038] The second wiring hole on the left side of the second terminal block 34 is blocked, and the corresponding second pin on the control board is empty. This achieves precise matching and docking between the second terminal block 34 and the control board. The corresponding color on the control board is also red.

[0039] The third wiring hole in the third terminal 44, located third from the left, is blocked, and the corresponding third pin on the control board is empty. This achieves precise matching and docking between the first terminal 24 and the control board. The corresponding color on the control board is also white, thus achieving the first level of error prevention and foolproofing in this embodiment.

[0040] Meanwhile, the first terminal 24, the second terminal 34, and the third terminal 44 are equipped with a tactile feedback mechanism on the control board: when correctly assembled, a clear "click" sound can be heard; while when incorrectly installed, the resistance value is large.

[0041] The third level of error prevention and foolproofing: The third level of error prevention and foolproofing is mainly reflected in the assembly differences between the first lug 28 of the first motor 2, the second lug 38 of the second motor 3, the third lug 48 of the third motor 4 and the bottom shell 1. See Appendix Figure 4 To be continued Figure 6 In this embodiment, the first outer shell 21, the second outer shell 31, and the third outer shell 41 are the same size. The main difference is in the angle of the first hook 28, the second hook 38, and the third hook 48.

[0042] Specifically, the two first lugs 28 are symmetrical about their axes, with one first lug 28 at 0° and the other at 180°. Screws are installed on the first lugs 28, and these screws are aligned with the corresponding screw holes on the bottom housing 1. Figure 1 To be continued Figure 3 As can be seen, both first lugs 28 are surrounded by five ribs on the bottom shell 1. The gap between the ribs on the bottom shell 1 and the first lugs 28 is 0.1 on one side. In addition, the draft angle allows the first motor 2 to be quickly placed in the designated position during assembly without needing to be rotated and adjusted. Moreover, it solves the problem that the motor will be driven to rotate by the rotational force of the screw when the screw is fixed.

[0043] The two second lugs 38 of the second motor 3 are symmetrically arranged around the center point. One second lug 38 is at -30° and the other second lug 38 is at 150°. Screws are set on the second lugs 38 and the screws are assembled with the corresponding screw holes of the bottom shell 1. Two small cylinders are designed on the bottom shell 1 and are assembled with the circular positioning points of the second motor 3. Four positioning ribs are added to complete the positioning of the second motor 3.

[0044] The two third lugs of the third motor 4 are symmetrically arranged on the left and right. One third lug 48 is at -30° and the other third lug 48 is at 210°. Screws are installed on the second lug 48 and the screws are assembled with the corresponding screw holes on the bottom shell 1. The two third lugs 48 are opposite in direction to the third rotating shaft 42 and are assembled with the corresponding positions on the bottom shell 1. The bottom shell 1 is positioned by six ribs.

[0045] Collaborative error prevention effect: When any motor is misinstalled, at least two error prevention mechanisms are triggered:

[0046] 1. If the second motor 3 is forcibly installed in the position corresponding to the first motor 2, the red terminal and the white interface will clash in color, creating a visual impact. The assembly of the second hanging ear 38 will conflict with the assembly of the first hanging ear 28, and the screw hole position of the bottom shell 1 will not match. Although they are both single-row, the blocking positions are different. During assembly, the pin corner will press against the second terminal 34, causing structural interference.

[0047] 2. If the third motor 4 is mistakenly installed in the position corresponding to the second motor 3, the contrast difference between the blue terminal and the red marking area is greater than 70%, the third mounting ear 48 exceeds the angle of the fan-shaped rib limit groove, and cannot be installed. Although they are both single-row, the blocking positions are different. During assembly, the pin corner will press against the third terminal 44, causing structural interference.

[0048] This embodiment achieves physical error prevention by strictly matching the shape of the motor mounting position with the bottom shape of the motor. Even if the operator does not pay attention to the color markings, it is impossible to forcibly install motors of different shapes into the wrong mounting positions, forming the first error prevention barrier. It does not rely on manual judgment and has extremely high error prevention reliability.

[0049] Then, based on shape matching, visual guidance is further enhanced by comparing the distinct color markings of each terminal block: red, white, and blue. The color markings can cover the edge of the mounting position and the bottom contact surface of the motor, ensuring that the corresponding position can be quickly identified even in the event of insufficient light or limited operating angle during assembly. This achieves a double error prevention mechanism, reducing the risk of incorrect installation due to the failure of a single error prevention measure, and is especially suitable for mass production line environments.

[0050] In this embodiment, because the motor mounting position is strictly matched with the shape of the motor, the operator only needs to align the motor with the mounting position and push it gently to complete the positioning, without adjusting the screw hole position or repeatedly calibrating the angle, thus achieving rapid installation; at the same time, the intuitive color markings allow new employees to quickly master the assembly process without complicated training, reducing assembly errors caused by insufficient human experience and significantly improving overall assembly efficiency.

[0051] The color markings in this embodiment use laser engraving or wear-resistant coating processes (such as UV-cured ink) to avoid fading and blurring caused by long-term use or frequent disassembly and assembly, ensuring that the error prevention function is durable and effective, and can be used for a long time.

[0052] The shape design of the motor mounting position, combined with limiting bosses or guide grooves, prevents the motor from shifting or loosening due to external force collisions during assembly.

[0053] Simply add a mounting base of a specific shape and color markings to the bottom of the motor. No complex modifications to the internal circuitry or transmission structure of the motor are required. It is compatible with existing motor models and has low modification costs.

[0054] The design of this embodiment can be flexibly extended to other multi-motor application scenarios, such as washing machines and air purifiers. By adjusting the shape combination of the installation position and the color marking rules, it can be quickly adapted to different product requirements.

[0055] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any person skilled in the art can make more possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from the content of the technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. An air conditioner split-type indoor unit motor assembly system based on a multi-layer error-proof structure, comprising a bottom shell (1), a first motor (2), a second motor (3), a third motor (4), and an electronic control board, characterized in that: The first motor (2) is located in the middle of the main body of the split internal unit, and the second motor (3) and the third motor (4) are respectively located on the side of the bottom shell (1); The first motor (2) is formed with two first hanging ears (28) arranged symmetrically on the left and right, and the included angle between the two first hanging ears (28) is 180°. The second motor (3) is formed with two second hanging ears (38) arranged on the left and right, and the two second hanging ears (38) are symmetrically distributed about the center point. The third motor (4) is formed with two third hanging ears (48) arranged symmetrically on the left and right, and the included angle between the two third hanging ears (48) is not 180°.

2. The air conditioner split-type indoor unit motor assembly system based on a multi-error-proof structure according to claim 1, characterized in that: The bottom shell (1) is connected to a first air guide plate and a second air guide plate. The first motor (2) is connected to the first air guide plate, and the second motor (3) is connected to the second air guide plate.

3. The air conditioner split-type indoor unit motor assembly system based on a multi-error prevention structure according to claim 1, characterized in that: The first motor (2) includes a first housing (21), a first rotating shaft (22), a first bottom cover (23), and a first terminal block (24). The first bottom cover (23) is disposed on the first housing (21), the first rotating shaft (22) is disposed on the first housing (21), the end of the first rotating shaft (22) is connected to the first terminal block (24), and the first terminal block (24) is connected to the control board. The left and right sides of the end of the first bottom cover (23) are respectively formed with first lugs (28).

4. The air conditioner split-type indoor unit motor assembly system based on a multi-error-proof structure according to claim 3, characterized in that: The first terminal (24) has six first wiring holes, which are arranged alternately from left to right, with the leftmost first wiring hole being blocked.

5. The air conditioner split-type indoor unit motor assembly system based on a multi-error prevention structure according to claim 1, characterized in that: The second motor (3) includes a second housing (31), a second rotating shaft (32), a second bottom cover (33), and a second terminal block (34). The second bottom cover (33) is disposed on the second housing (31), and the second rotating shaft (32) is disposed on the second housing (31). The end of the second rotating shaft (32) is connected to the second terminal block (34), and the second terminal block (34) is connected to the control board. The left and right sides of the end of the second bottom cover (33) are respectively formed with second lugs (38).

6. The air conditioner split-type indoor unit motor assembly system based on a multi-error-proof structure according to claim 5, characterized in that: The second terminal (34) has six second wiring holes, which are arranged alternately from left to right, with the second second wiring hole on the left being blocked.

7. The air conditioner split-type indoor unit motor assembly system based on a multi-error-proof structure according to claim 3, characterized in that: The third motor (4) includes a third housing (41), a third rotating shaft (42), a third bottom cover (43), and a third terminal block (44). The third bottom cover (43) is disposed on the third housing (41), the third rotating shaft (42) is disposed on the third housing (41), the end of the third rotating shaft (42) is connected to the third terminal block (44), and the third terminal block (44) is connected to the control board. The left and right sides of the end of the third bottom cover (43) are respectively formed with third lugs (48).

8. The air conditioner split-type indoor unit motor assembly system based on a multi-error-proof structure according to claim 7, characterized in that: The third terminal (44) has six third wiring holes, which are arranged alternately from left to right, with the third third wiring hole on the left being blocked.

9. The air conditioner split-type indoor unit motor assembly system based on a multi-layer error-proof structure according to claim 8, characterized in that: The first terminal block (24), the second terminal block (34), and the third terminal block (44) are all equipped with color markings.

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