Split type multi-interface expansion type air conditioner control circuit board

Abstract

The utility model relates to the field of circuit board discloses a split type multi -interface expansion type air conditioner control circuit board, including the circuit board body, the inside of circuit board body is provided with many suitable interface device, the many suitable interface device includes the board body, the side surface fixedly connected with interface frame of board body, the inside of interface frame has opened the interface, in the utility model, its front end will first contact the limit switch inside interface frame, the gyro wheel passes through the pivot and is installed on the connecting frame, support rod no.

Description

Technical Field

[0001] This utility model relates to the field of circuit boards, and in particular to a split-type multi-interface extended air conditioning control circuit board. Background Technology

[0002] The air conditioner control circuit board is the central nervous system of the air conditioner and a core electronic component that ensures the precise operation of the equipment. It integrates components such as chips, capacitors, and resistors, and can realize three core functions: signal processing, component regulation, and safety protection. It first receives remote control commands and feedback signals from sensors such as temperature and fan speed, converts this information into electronic commands, and then precisely controls the compressor start and stop, fan speed, and electronic expansion valve opening according to the commands. At the same time, it adjusts the display screen and swing angle. It also has built-in overcurrent, overvoltage, and overheat protection mechanisms, which immediately cut off the power supply in case of failure to avoid equipment damage or safety accidents. It is the key to the stable and safe operation of the air conditioner.

[0003] The split-type multi-interface expandable air conditioner control circuit board serves as a smart hub adaptable to complex scenarios. Building upon ordinary control boards, it enhances interface expansion and multi-device collaboration capabilities, making it a core control component for commercial and smart applications. Through multiple digital and analog interfaces and communication modules such as RS485, it can connect to multiple indoor units and devices like fresh air systems and underfloor heating. It can also integrate with sensors for temperature, humidity, and human presence. It can receive signals from remote controls and sensors, and supports integration with smart home or BMS systems for remote centralized control and energy management. Furthermore, it incorporates overcurrent and evaporator antifreeze protection mechanisms, balancing expansion flexibility with operational safety.

[0004] In the long-term use of existing split-type multi-interface extended air conditioner control circuit boards, some of the power cord connectors cannot be properly matched with the interfaces. As a result, due to slight vibrations during equipment operation, the physical fit between the power cord connectors and the interfaces gradually loosens. This situation eventually leads to frequent interface interruptions, causing malfunctions such as partial air conditioner shutdowns and operational errors, affecting the overall stability of use. To address this issue, a split-type multi-interface extended air conditioner control circuit board is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a split-type multi-interface extended air conditioner control circuit board, which aims to improve the problem that in the long-term use of the existing split-type multi-interface extended air conditioner control circuit board, some of the power cord connectors cannot be well matched with the interfaces, so that the physical engagement between the power cord connectors and the interfaces will gradually loosen due to slight vibrations during equipment operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a split-type multi-interface extended air conditioning control circuit board, comprising a circuit board body, wherein a multi-applicable interface device is provided inside the circuit board body; the multi-applicable interface device comprises a board body, an interface frame is fixedly connected to the side of the board body, an interface is opened inside the interface frame, a limit plate is rotatably connected inside the interface frame, a connecting frame is elastically connected inside the interface frame by a spring, a support rod one is fixedly connected to one side of the connecting frame, a support rod two is fixedly connected to the other side of the connecting frame, a roller is rotatably connected inside the connecting frame, and an adjustment device is provided on the side of the board body.

[0007] As a further description of the above technical solution: the adjusting device includes a support column, a rotating rod is rotatably connected inside the support column, a handle is fixedly connected to one side of the rotating rod, a bevel gear is fixedly connected to the other side of the rotating rod, a screw is threadedly connected inside the support column, an adjusting rod is slidably connected inside the support column, and a bevel gear is fixedly connected through and inside the screw.

[0008] As a further description of the above technical solution: one side of the spring is fixedly connected to the inside of the interface frame, and the other side is fixedly connected to the side of the connecting frame.

[0009] As a further description of the above technical solution: the first bevel gear and the second bevel gear are generally perpendicular to each other in meshing.

[0010] As a further description of the above technical solution: the support column has a threaded groove inside, and the threaded groove inside the support column matches the size of the screw.

[0011] As a further description of the above technical solution: the adjusting rod has a threaded groove inside, and the threaded groove inside the adjusting rod matches the size of the screw.

[0012] As a further description of the above technical solution: the interface frame has a sliding groove inside, and the sliding groove inside the interface frame matches the size of support rod one and support rod two.

[0013] As a further description of the above technical solution: the interface frame has a rotating groove inside, and the size of the rotating groove inside the interface frame matches that of the limiting rotating plate.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the front end will first contact the limiting plate inside the interface frame. The roller is installed on the connecting frame through the rotating shaft. Support rod one and support rod two will jointly squeeze the spring to the side, so that the spring is in a compressed state. The reaction force of the spring will be transmitted to the connecting frame and the roller through the support rod, so that the roller always maintains the contact pressure on the power cord, ensuring that the power cord can continue to be pushed smoothly towards the interface. When the power cord is finally inserted into the interface and the connection is completed, its two sides will be tightly wrapped by multiple rollers symmetrically distributed in the interface frame, forming multi-point compression support for the power cord.

[0015] 2. In this utility model, a handle located on the outside of the support column is manually rotated. The handle is fixedly connected to the rotating rod inside the support column. Bevel gear one meshes perpendicularly with bevel gear two horizontally arranged inside the support column. An adjusting rod is sleeved on the outside of the screw. The inner wall of the adjusting rod has an internal thread groove that perfectly matches the external thread of the screw, allowing for quick adjustment of the required distance between the two circuit board bodies. Once the length of the adjusting rod is adjusted to the correct position, the two circuit board bodies can be smoothly connected. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a split-type multi-interface extended air conditioning control circuit board proposed in this utility model. Figure 2 This is a three-dimensional front view of a split-type multi-interface extended air conditioning control circuit board proposed in this utility model. Figure 3 This is a three-dimensional cross-sectional view of the front of a split-type multi-interface extended air conditioning control circuit board proposed in this utility model. Figure 4 This is a side sectional view of a split-type multi-interface extended air conditioning control circuit board proposed in this utility model.

[0017] Legend: 1. Circuit board body; 2. Multi-applicable interface device; 21. Board body; 22. Interface frame; 23. Interface; 24. Limiting plate; 25. Spring; 26. Connecting frame; 27. Support rod one; 28. Support rod two; 29. ​​Roller; 3. Adjustment device; 31. Support column; 32. Rotating rod; 33. Turning handle; 34. Bevel gear one; 35. Screw; 36. Adjusting rod; 37. Bevel gear two. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 - Figure 2 This utility model provides an embodiment of a split-type multi-interface extended air conditioning control circuit board, including a circuit board body 1. The circuit board body 1 has a multi-applicable interface device 2 inside. The multi-applicable interface device 2 includes a board body 21, an interface frame 22 fixedly connected to the side of the board body 21, an interface 23 opened inside the interface frame 22, and a limiting rotating plate 24 rotatably connected inside the interface frame 22. A rotating groove is opened inside the interface frame 22, and the size of the rotating groove inside the interface frame 22 matches that of the limiting rotating plate 24. This design allows the limiting rotating plate 24 to rotate inside the interface frame 22. A connecting frame 26 is elastically connected inside the interface frame 22 by a spring 25. One side of the spring 25 is fixedly connected to the inside of the interface frame 22, and the other side is fixedly connected to the side of the connecting frame 26. This design allows the connecting frame 26 to slide inside the interface frame 22 via the spring 25. A support rod 27 is fixedly connected to one side of the connecting frame 26, and a support rod 28 is fixedly connected to the other side of the connecting frame 26. A sliding groove is provided inside the interface frame 22, and the size of the sliding groove inside the interface frame 22 matches that of the support rod 27 and the support rod 28. This design allows the support rod 27 and the support rod 28 to slide inside the interface frame 22 via the sliding groove. A roller 29 is rotatably connected inside the connecting frame 26, and an adjustment device 3 is provided on the side of the plate 21.

[0020] Reference Figure 3 - Figure 4 The adjusting device 3 includes a support column 31, a rotating rod 32 rotatably connected inside the support column 31, a handle 33 fixedly connected to one side of the rotating rod 32, and a bevel gear 34 fixedly connected to the other side of the rotating rod 32. The bevel gear 34 and the bevel gear 37 are meshed perpendicularly to each other. This design allows the bevel gear 37 to start rotating when the handle 33 is rotated. A screw 35 is threadedly connected inside the support column 31. The support column 31 has a threaded groove inside, and the size of the threaded groove inside the support column 31 matches that of the screw 35. This design allows the screw 35 to rotate within the threaded part of the support column 31. An adjusting rod 36 is slidably connected inside the support column 31. The adjusting rod 36 has a threaded groove inside, and the size of the threaded groove inside the adjusting rod 36 matches that of the screw 35. This design allows the adjusting rod 36 to slide through the threaded groove when the screw 35 rotates. The bevel gear 37 is fixedly connected through the screw 35.

[0021] Working Principle: The circuit board body 1 has an interface frame 22 fixed inside for connecting power cables. This interface frame 22 incorporates an adaptive adjustment mechanism for incompatible power cables. When a power cable of incorrect specifications is inserted, its tip first contacts the limiting rotating plate 24 inside the interface frame 22. The limiting rotating plate 24 can rotate at a certain angle within the interface frame 22 around a fixed axis. During rotation, its edge adheres to the outer wall of the power cable, both adjusting its angle to accommodate differences in cable thickness and providing initial guidance and limiting for the power cable, preventing misalignment during insertion. As the power cable continues to advance towards the interface 23, its outer wall gradually presses against the roller 29 on the side of the interface frame 22. The roller 29 is mounted on the connecting frame 26 via a rotating shaft. Pressed by the power cable, it begins to roll along the direction of the power cable's movement. The continuous thrust of the power cable drives the roller 29 to move inwards towards the interface frame 22, thereby pushing the connected frame 26 to slide synchronously. Support rod 1 27 and support rod 28 are connected to both sides of the connecting frame 26. The ends of these two support rods are connected to springs 25 on the inner wall of the interface frame 22. When the connecting frame 26 slides, support rod 1 27 and support rod 28 will jointly compress spring 25 to the side, putting spring 25 in a compressed state. The reaction force of spring 25 will be transmitted to connecting frame 26 and roller 29 through the support rods, so that roller 29 always maintains contact pressure with the power cord. It is worth noting that the rotation design of roller 29 cleverly solves the contradiction between compression limit and smooth insertion. Even if roller 29 is compressed by spring 25, its own rolling characteristics can eliminate sliding friction resistance, ensuring that the power cord can continue to move smoothly towards interface 23 without being blocked by compression. When the power cord is finally inserted into interface 23 and the connection is completed, its two sides will be tightly wrapped by multiple rollers 29 symmetrically distributed inside interface frame 22: each roller 29 continuously applies moderate pressure under the action of spring 25, forming a multi-point compression support structure for the power cord. This mechanism allows interface 23 to flexibly adapt to power cables of different models and thicknesses. Through dynamic pressure compensation, it effectively avoids contact gaps caused by mismatched power cable specifications, fundamentally solving the problem of easy loosening of traditional interface 23.

[0022] When it is necessary to connect two circuit board bodies 1, the operator first manually rotates the handle 33 located on the outside of the support column 31 according to the actual spacing requirements between the two circuit board bodies 1. The handle 33 is fixedly connected to the rotating rod 32 inside the support column 31. When the handle 33 is rotated, the rotating rod 32 will be directly driven to rotate synchronously in the preset shaft hole of the support column 31. The rotation direction of the rotating rod 32 is completely consistent with the rotation direction of the handle 33, ensuring that the operating force can be accurately transmitted. As the rotating rod 32 rotates, the bevel gear 34 fixed at the other end away from the handle 33 also begins to rotate. The first bevel gear 34 and the second bevel gear 37, which is transversely arranged inside the support column 31, are in a perpendicular meshing state. Their teeth are tightly engaged, so the rotation of the first bevel gear 34 will drive the second bevel gear 37 to change direction inside the support column 31 through tooth surface transmission. That is, the longitudinal rotation of the rotating rod 32 is converted into the transverse rotation of the second bevel gear 37, thus completing the adjustment of the power transmission direction. The screw 35, which is coaxially fixed with the second bevel gear 37, will rotate synchronously with the rotation of the second bevel gear 37. An adjusting rod 36 is sleeved on the outside of the screw 35. The inner wall of the adjusting rod 36 has an internal thread groove that is completely matched with the external thread of the screw 35. The two constitute a threaded transmission structure. When the screw 35 rotates, its external thread interacts with the internal thread groove of the adjusting rod 36, converting the rotational motion of the screw 35 into the linear motion of the adjusting rod 36. This allows the adjusting rod 36 to slide smoothly along the internal guide structure of the support column 31. If the screw 35 rotates clockwise, the adjusting rod 36 extends outward to increase its length; if it rotates counterclockwise, the adjusting rod 36 retracts inward to shorten its length. Through the linkage of these components, the operator only needs to turn the handle 33 to precisely control the extension or retraction of the adjusting rod 36, quickly adapting the required distance between the two circuit board bodies 1. Once the length of the adjusting rod 36 is adjusted to the correct position, the two circuit board bodies 1 can be smoothly connected. The entire process requires no complex tools, and the precise transmission of gears and threads ensures the accuracy of the spacing adjustment, effectively avoiding connection difficulties caused by distance deviations during connection, achieving a highly efficient and precise connection effect.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split-type multi-interface extended air conditioning control circuit board, comprising a circuit board body (1), characterized in that: The circuit board body (1) is internally provided with multiple applicable interface devices (2); The multi-application interface device (2) includes a plate (21), an interface frame (22) is fixedly connected to the side of the plate (21), an interface (23) is opened inside the interface frame (22), a limit plate (24) is rotatably connected inside the interface frame (22), a connecting frame (26) is elastically connected inside the interface frame (22) by a spring (25), a support rod (27) is fixedly connected to one side of the connecting frame (26), a support rod (28) is fixedly connected to the other side of the connecting frame (26), a roller (29) is rotatably connected inside the connecting frame (26), and an adjustment device (3) is provided on the side of the plate (21).

2. The split-type multi-interface extended air conditioner control circuit board according to claim 1, characterized in that: The adjusting device (3) includes a support column (31), a rotating rod (32) is rotatably connected inside the support column (31), a handle (33) is fixedly connected to one side of the rotating rod (32), a bevel gear (34) is fixedly connected to the other side of the rotating rod (32), a screw (35) is threaded inside the support column (31), an adjusting rod (36) is slidably connected inside the support column (31), and a bevel gear (37) is passed through and fixedly connected inside the screw (35).

3. The split-type multi-interface extended air conditioner control circuit board according to claim 1, characterized in that: One side of the spring (25) is fixedly connected to the inside of the interface frame (22), and the other side is fixedly connected to the side of the connecting frame (26).

4. A split-type multi-interface extended air conditioner control circuit board according to claim 2, characterized in that: The bevel gear one (34) and bevel gear two (37) are meshed perpendicularly to each other.

5. A split-type multi-interface extended air conditioner control circuit board according to claim 2, characterized in that: The support column (31) has a threaded groove inside, and the threaded groove inside the support column (31) matches the size of the screw (35).

6. A split-type multi-interface extended air conditioner control circuit board according to claim 2, characterized in that: The adjusting rod (36) has a threaded groove inside, and the threaded groove inside the adjusting rod (36) matches the size of the screw (35).

7. A split-type multi-interface extended air conditioning control circuit board according to claim 1, characterized in that: The interface frame (22) has a sliding groove inside, and the sliding groove inside the interface frame (22) matches the size of support rod one (27) and support rod two (28).

8. A split-type multi-interface extended air conditioner control circuit board according to claim 1, characterized in that: The interface frame (22) has a rotating groove inside, and the rotating groove inside the interface frame (22) matches the size of the limiting rotating plate (24).

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