Controller assembly of magnetic suspension compressor and magnetic suspension compressor
By using a plug-in electrical connection and modular design of two control boards, the complexity of electrical connections and the lack of compact structure of the magnetic levitation compressor controller components are solved, improving signal stability and miniaturization adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN YAMAGNETIC TECHNOLOGY CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-19
AI Technical Summary
Existing magnetic levitation compressor controller components suffer from problems such as complex electrical connections, susceptibility to electromagnetic compatibility interference, unstable signal transmission, non-compact structure, and large space occupation, which affect product stability and miniaturization design.
The system employs a dual-control-board design, with the main control board and the adapter control board connected via sockets and docking connectors. This reduces external wiring, improves signal transmission stability, and mitigates electromagnetic compatibility interference risks through modular integration, making it suitable for miniaturization requirements.
This achieves improved signal transmission stability, reduces electromagnetic compatibility interference risks, reduces external wiring, and improves the compactness of controller components and the miniaturization design to adapt to magnetic levitation compressors.
Smart Images
Figure CN224260539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor technology, and in particular to a controller assembly for a magnetic levitation compressor and a magnetic levitation compressor. Background Technology
[0002] In modern industrial and commercial sectors, magnetic levitation compressors are widely used in refrigeration and gas transportation systems due to their advantages such as high efficiency, energy saving, low vibration, and long lifespan. The controller assembly, as the core component of the magnetic levitation compressor, directly affects the compressor's stable operation and overall efficiency.
[0003] The normal operation of a magnetic levitation compressor relies on precise control of multiple modules, including the frequency converter, bearings, and compressor itself. While existing integrated compressors integrate frequency converters and bearing controllers, this integration is merely structural; the frequency converter, bearing controller, and sensor board are mounted on the compressor's mounting platform, but the control system is not integrated. Furthermore, the electrical connections between the main control board and other functional modules typically employ complex wiring methods. For example, additional long wiring harnesses are used for communication, making them susceptible to electromagnetic compatibility interference and reducing product stability. Alternatively, multiple scattered interfaces are used, increasing installation and maintenance difficulty and potentially affecting signal transmission stability and accuracy due to unreliable connections. Simultaneously, the low integration of the main control board with other functional modules results in a less compact controller assembly, occupying a larger space and hindering the miniaturization and integration design of magnetic levitation compressors. Utility Model Content
[0004] The main objective of this invention is to provide a controller assembly for a magnetic levitation compressor and a magnetic levitation compressor, aiming to solve at least one of the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model proposes a controller assembly for a magnetic levitation compressor. The controller assembly includes a housing, a main control board, and a transfer control board. The main control board is disposed within the housing and has a first socket. The main control board is used to house one or more of a frequency converter control module, a bearing control module, a compressor control module, and a power control module. The transfer control board is disposed within the housing and is used to house at least one of a compressor signal processing module and a compressor power conversion module. The transfer control board has a first docking seat, which is plugged into the first socket to achieve electrical connection between the main control board and the transfer control board.
[0006] In one embodiment, the main control board and the adapter control board are arranged in a rectangular plate shape, the socket is located near the edge of the main control board, and the docking seat is located near the edge of the adapter control board.
[0007] In one embodiment, the main control board includes a first sub-control board and a second sub-control board. The first sub-control board is provided with a second socket, and the second sub-control board is provided with a second docking seat. The second socket and the second docking seat are plugged into each other to realize the electrical connection between the first sub-control board and the second sub-control board.
[0008] In one embodiment, a heat sink is further included. The heat sink has a first connecting hole, and the housing has a first mating hole. The first connecting hole and the first mating hole are connected by bolts. The heat sink also has a plurality of first connecting posts and a plurality of second connecting posts. The plurality of first connecting posts are used to connect the main control board, and the plurality of second connecting posts are used to connect the adapter control board.
[0009] In one embodiment, the plurality of first connecting posts and the plurality of second connecting posts are erected on the surface of the heat sink, and the height of the plurality of second connecting posts is higher than the height of the plurality of first connecting posts.
[0010] In one embodiment, the housing has an open side, and the housing includes a bottom plate and a surrounding plate connected to each other. The opening is formed on one side of the surrounding plate, and the other side is connected to the edge of the bottom plate. The surrounding plate has a plurality of lugs protruding outward on the side near the opening, and the first mating hole is formed in the lugs.
[0011] In one embodiment, the base plate has a wire pass-through opening; and / or the base plate has a wire bundling hole.
[0012] In one embodiment, the opposite two sides of the enclosure are provided with waterproof flanges.
[0013] In one embodiment, the base plate is provided with reinforcing ribs.
[0014] This utility model also proposes a magnetic levitation compressor, which includes a controller assembly. The controller assembly includes a housing, a main control board, and a transfer control board. The main control board is disposed within the housing and has a first socket. The main control board is used to configure one or more of a frequency converter control module, a bearing control module, and a compressor control module. The transfer control board is disposed within the housing and has a first mating seat. The first mating seat is plugged into the first socket to achieve electrical connection between the main control board and the transfer control board.
[0015] The technical solution of this utility model involves setting up two control boards. One main control board is equipped with one or more of the following: a frequency converter control module, a bearing control module, a compressor control module, and a power drive module. It also includes a first socket. The other adapter control board is used to set up at least one of the following: a compressor signal processing module and a compressor power conversion module. The adapter control board is equipped with a first mating socket for plugging into the first socket. This allows the first socket and the first mating socket to achieve electrical connection between the main control board and the adapter control board through a plug-in / plug-out method. This reduces external wiring by more than 90%, further reduces the risk of electromagnetic compatibility (EMC) interference, and improves signal transmission stability. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 A schematic diagram of the structure of a controller assembly for a magnetic levitation compressor provided by this utility model;
[0018] Figure 2 for Figure 1 Schematic diagram of the central control board;
[0019] Figure 3 for Figure 1 Schematic diagram of the heat sink structure;
[0020] Figure 4 for Figure 1 Schematic diagram of the middle shell structure;
[0021] Figure 5 for Figure 4 A schematic diagram of the middle shell from another perspective;
[0022] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.
[0023] Explanation of icon numbers:
[0024] 100. Controller assembly for magnetic levitation compressor; 10. Housing; 11. Base plate; 111. Wiring port; 112. Cable harness hole; 113. Reinforcing rib; 12. Enclosure; 121. Lug; 121a. First mating hole; 20. Main control board; 20a. First socket; 30. Adapter control board; 30a. First docking seat; 40. Heat sink; 41. First connecting hole; 42. First connecting post; 43. Second connecting post; 50. Waterproof flange.
[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0026] 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 scope of protection of the present utility model.
[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0029] In modern industrial and commercial sectors, magnetic levitation compressors are widely used in refrigeration and gas transportation systems due to their advantages such as high efficiency, energy saving, low vibration, and long lifespan. The controller assembly, as the core component of the magnetic levitation compressor, directly affects the compressor's stable operation and overall efficiency.
[0030] The normal operation of a magnetic levitation compressor relies on precise control of multiple modules, including the frequency converter, bearings, and compressor itself. While existing integrated compressors integrate frequency converters and bearing controllers, this integration is merely structural; the frequency converter, bearing controller, and sensor board are mounted on the compressor's mounting platform, but the control system is not integrated. Furthermore, the electrical connections between the main control board and other functional modules typically employ complex wiring methods. For example, additional long wiring harnesses are used for communication, making them susceptible to electromagnetic compatibility interference and reducing product stability. Alternatively, multiple scattered interfaces are used, increasing installation and maintenance difficulty and potentially affecting signal transmission stability and accuracy due to unreliable connections. Simultaneously, the low integration of the main control board with other functional modules results in a less compact controller assembly, occupying a larger space and hindering the miniaturization and integration design of magnetic levitation compressors.
[0031] This invention proposes a controller assembly for a magnetic levitation compressor, which is applied to magnetic levitation compressor equipment and can solve at least one of the aforementioned technical problems.
[0032] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the controller assembly 100 of the magnetic levitation compressor includes a housing 10, a main control board 20, and a transfer control board 30. The main control board 20 is disposed inside the housing 10 and is provided with a first socket 20a. The main control board 20 is used to set one or more of a frequency converter control module, a bearing control module, a compressor control module, and a power drive module. The transfer control board 30 is disposed inside the housing 10 and is used to set at least one of a compressor signal processing module and a compressor power conversion module. The transfer control board 30 is provided with a first docking seat 30a, which is plugged into the first socket 20a to realize the electrical connection between the main control board 20 and the transfer control board 30.
[0033] Specifically, the housing 10 is a rectangular box-shaped structure made of aluminum alloy or engineering plastic. The housing 10 has an installation chamber inside to accommodate the main control board 20 and the transfer control board 30, etc. The housing 10 has mechanical protection function to protect the main control board 20 and the transfer control board 30, etc.
[0034] The main control board 20 is housed within the housing 10 and is a rectangular plate structure. The main control board 20 has at least one of the following modules: inverter control module, bearing control module, compressor control module, or power control module (single or multiple modules can be integrated as needed). A first socket 20a (e.g., a pin-type socket, made of phosphor bronze plated with gold, and encased in an insulating plastic shell) is provided on the main control board 20, with the socket pins directly connected to the circuit pads inside the board. The adapter control board 30 is arranged parallel to the main control board 20 and is also a rectangular circuit board. The adapter control board 30 is used to house at least one of the following modules: compressor signal processing module and compressor power conversion module (single or multiple modules can be integrated as needed). The adapter control board 30 has a first mating connector 30a (a socket of the same material that matches the first socket 20a). The first mating connector 30a is electrically connected to the adapter control board 30 via pins.
[0035] In this design, the first socket 20a and the first mating connector 30a achieve electrical connection between the main control board 20 and the adapter control board 30 through a plug-in connection. After plugging, the contact surfaces of the two boards fit tightly together, forming a stable signal transmission channel. Replacing traditional wire harness connections with plug-in electrical connections reduces external wiring by more than 90%, further reducing electromagnetic compatibility (EMC) interference risks and improving signal transmission stability. Furthermore, the modular integrated design significantly reduces the size of the controller components, adapting to the miniaturization requirements of magnetic levitation compressors. On the other hand, the plug-in connection between the first socket 20a and the first mating connector 30a for electrical connection between the main control board 20 and the adapter control board 30 is convenient and reliable.
[0036] The technical solution of this utility model involves setting up two control boards. One of the main control boards 20 is equipped with one or more of a frequency converter control module, a bearing control module, a compressor control module, and a power drive module, and a first socket 20a is also provided. The other adapter control board 30 is used to set up at least one of a compressor signal processing module and a compressor power conversion module. The adapter control board 30 is equipped with a first mating socket 30a for plugging and connecting with the first socket 20a. This allows the first socket 20a and the first mating socket 30a to achieve electrical connection between the main control board 20 and the adapter control board 30 through a plug-in and plug-out method, reducing external wiring by more than 90%, further reducing the risk of electromagnetic compatibility (EMC) interference, and improving signal transmission stability.
[0037] Please see Figure 2 In one embodiment, the main control board 20 and the adapter control board 30 are arranged in a rectangular plate shape, with the socket located near the edge of the main control board 20 and the docking seat located near the edge of the adapter control board 30.
[0038] Specifically, both the main control board 20 and the adapter control board 30 are rectangular plate structures, facilitating standardized production. The main control board 20 and the adapter control board 30 can be the same size, or one control board can be smaller than the other; there are no specific restrictions. In this embodiment, since the main control module is located on the main control board 20, its size is configured to be larger than that of the adapter control board 30. A first socket 20a is located on one side edge of the main control board 20, and a first mating seat 30a is located on one side edge of the adapter control board 30. The placement of the first socket 20a and the first mating seat 30a on the edges of the two control boards facilitates insertion and removal without affecting the arrangement of other functional modules on the boards.
[0039] In one embodiment, the main control board 20 includes a first sub-control board (not shown in the figure) and a second sub-control board (not shown in the figure). The first sub-control board is provided with a second socket (not shown in the figure), and the second sub-control board is provided with a second docking seat (not shown in the figure). The second socket and the second docking seat are plugged into each other to realize the electrical connection between the first sub-control board and the second sub-control board.
[0040] Specifically, the main control board 20 can be further divided into a first sub-control board and a second sub-control board. The first sub-control board is responsible for logic control, integrating a microprocessor and signal conditioning circuits, etc. It contains one or more of the following: a frequency converter control module, a bearing control module, and a compressor control module. The second sub-control board is responsible for the power drive of the compressor bearings, etc. This modular design achieves physical isolation between the control logic and the power drive, reducing electromagnetic interference and facilitating the individual replacement of faulty modules, thus reducing maintenance costs. Furthermore, the modular design supports customized configurations; for example, only the second sub-board needs to be replaced to adapt to compressors of different power ratings.
[0041] Please see Figure 1 and Figure 3 In one embodiment, the controller assembly 100 of the magnetic levitation compressor further includes a heat sink 40, which has a first connection hole 41 and a first mating hole 121a in the housing 10. The first connection hole 41 and the first mating hole 121a are connected by bolts. The heat sink 40 also has a plurality of first connecting posts 42 and a plurality of second connecting posts 43. The plurality of first connecting posts 42 are used to connect to the main control board 20, and the plurality of second connecting posts 43 are used to connect to the transfer control board 30.
[0042] Specifically, the heat sink 40 is plate-shaped and can be made of aluminum or copper. The heat sink 40 is directly attached to the compressor housing 10 to dissipate heat from the main control board 20, thereby improving the lifespan of electronic components. Multiple first connecting holes 41 are formed on the edges of the heat sink 40, and multiple corresponding first mating holes 121a are formed on the housing 10. Bolts are passed through the first connecting holes 41 and the first mating holes 121a to connect the heat sink 40 and the housing 10. Simultaneously, the heat sink 40 is also provided with multiple first connecting posts 42 and multiple second connecting posts 43. The first connecting posts 42 and the second connecting posts 43 are configured as studs. The multiple first connecting posts 42 are used to connect and install the main control board 20, and the multiple second connecting posts 43 are used to connect and install the adapter control board 30. The stepped installation of the first connecting posts 42 and the second connecting posts 43 forms a natural air convection channel, which, in conjunction with the heat dissipation hole structure on the housing 10, allows for heat dissipation.
[0043] Please see Figure 1 and Figure 3 Furthermore, multiple first connecting posts 42 and multiple second connecting posts 43 are erected on the surface of the heat sink 40, with the height of the multiple second connecting posts 43 being higher than the height of the multiple first connecting posts 42. This arrangement creates a gap between the adapter control board 30 and the main control board 20, allowing them to be spaced apart and avoiding mutual interference. Additionally, the adapter control board 30 typically carries high-voltage terminals (such as power input), while the main control board 20 carries low-voltage signals (such as sensor signals). The height difference between the two provides spatial isolation, meeting safety creepage distance requirements.
[0044] Please see Figure 1 and Figure 4 In one embodiment, the housing 10 is open on one side. The housing 10 includes a bottom plate 11 and a surrounding plate 12 connected to each other. One side of the surrounding plate 12 forms an opening, and the other side is connected to the edge of the bottom plate 11. The surrounding plate 12 is provided with a plurality of lugs 121 protruding outward on the side near the opening, and a first mating hole 121a is opened in the lug 121.
[0045] Specifically, the housing 10 consists of a base plate 11 and a surrounding plate 12. The edge of the base plate 11 is connected to the surrounding plate 12. The two can be fixed by welding, screwing, snap-fitting, or directly integrally formed. In this embodiment, they are integrally formed for ease of production. The heat sink 40 is located on the open side of the surrounding plate 12, and the surrounding plate 12 has an outwardly protruding lug 121 structure. The lug 121 has a first mating hole 121a to realize the connection between the heat sink 40 and the surrounding plate 12. The design of the lug 121 structure moves the fixing point between the heat sink 40 and the housing 10 outward, avoiding the bolt holes occupying the internal space of the housing 10, while enhancing the connection strength.
[0046] Please see Figures 4 to 6 In one embodiment, the base plate 11 has a wire through-hole 111; and / or the base plate 11 has a cable bundling hole 112. Specifically, the base plate 11 has a wire through-hole 111 for wires leading from the main control board 20 and the adapter control board 30 to pass through. Multiple wire through-holes 111 can be provided, and their shapes can be rectangular, circular, or other irregular shapes, without specific limitations. Alternatively, multiple cable bundling holes 112 can be provided on the base plate 11 to bundle the wires leading from the housing 10. Preferably, the cable bundling hole 112 is circular, and the cable bundling hole 112, in conjunction with cable ties, can secure the wire bundles together, reducing cable fatigue breakage caused by vibration. Alternatively, both a wire pass-through port 111 and a wire bundling hole 112 can be provided on the base plate 11. For wires that need to be bundled, they can be passed through the wire bundling hole 112, while other wires can be passed through the wire pass-through port 111, thus avoiding cross-bracing of the cables.
[0047] Please see Figure 6 In one embodiment, waterproof flanges 50 are provided on both opposite sides of the enclosure 12. Specifically, the opposite sides of the enclosure 12 extend upward to form vertical flanges of a certain height. The flanges can cover the entire circumference of the enclosure 12 or be provided in sections. The waterproof flanges 50 can prevent liquid splashing and avoid liquid flowing into the housing 10 and damaging electronic components. At the same time, the waterproof flanges 50 are inclined so that liquid can flow down along the waterproof flanges 50, avoiding water accumulation and reducing the risk of corrosion.
[0048] Please see Figure 4 In one embodiment, the base plate 11 is provided with reinforcing ribs 113. Specifically, the reinforcing ribs 113 are integrally formed with the base plate 11. The provision of the reinforcing ribs 113 can further enhance the structural strength of the base plate 11, improve the bending strength of the base plate 11, and avoid plate deformation caused by installation stress.
[0049] This utility model also proposes a magnetic levitation compressor, which includes the aforementioned controller assembly of the magnetic levitation compressor. The specific structure of the controller assembly of the magnetic levitation compressor is as described in the above embodiments. Since this magnetic levitation compressor adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0050] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A controller assembly for a magnetic levitation compressor, characterized in that, include: case; A main control board, disposed within the housing, is provided with a first socket. The main control board is used to configure one or more of the following modules: a frequency converter control module, a bearing control module, a compressor control module, and a power drive module. An adapter control board is disposed within the housing. The adapter control board is used to house at least one of a compressor signal processing module and a compressor power conversion module. The adapter control board is provided with a first docking seat, which is plugged into the first socket to realize the electrical connection between the main control board and the adapter control board.
2. The controller assembly for the magnetic levitation compressor as described in claim 1, characterized in that, The main control board and the adapter control board are arranged in a rectangular plate shape. The socket is located near the edge of the main control board, and the docking seat is located near the edge of the adapter control board.
3. The controller assembly for the magnetic levitation compressor as described in claim 2, characterized in that, The main control board includes a first sub-control board and a second sub-control board. The first sub-control board is provided with a second socket, and the second sub-control board is provided with a second docking seat. The second socket and the second docking seat are plugged into each other to realize the electrical connection between the first sub-control board and the second sub-control board.
4. The controller assembly for the magnetic levitation compressor as described in claim 2, characterized in that, It also includes a heat sink, which has a first connecting hole, and the housing has a first mating hole. The first connecting hole and the first mating hole are connected by bolts. The heat sink also has a plurality of first connecting posts and a plurality of second connecting posts. The plurality of first connecting posts are used to connect to the main control board, and the plurality of second connecting posts are used to connect to the adapter control board.
5. The controller assembly for the magnetic levitation compressor as described in claim 4, characterized in that, The plurality of first connecting posts and the plurality of second connecting posts are erected on the surface of the heat sink, and the height of the plurality of second connecting posts is higher than the height of the plurality of first connecting posts.
6. The controller assembly for the magnetic levitation compressor as described in claim 4, characterized in that, The housing has an open side, and the housing includes a bottom plate and a surrounding plate connected to each other. The opening is formed on one side of the surrounding plate, and the other side is connected to the edge of the bottom plate. The surrounding plate has a plurality of lugs protruding outward on the side near the opening, and the first mating hole is opened in the lug.
7. The controller assembly for the magnetic levitation compressor as described in claim 6, characterized in that, The base plate has a wire pass-through opening; and / or the base plate has a wire bundling hole.
8. The controller assembly for the magnetic levitation compressor as described in claim 6, characterized in that, Waterproof flanges are provided on both opposite edges of the enclosure.
9. The controller assembly for the magnetic levitation compressor as described in claim 6, characterized in that, The base plate is equipped with reinforcing ribs.
10. A magnetic levitation compressor, characterized in that, Includes a controller assembly for a magnetic levitation compressor as described in any one of claims 1 to 9.