Integral direct current supply compressor

Abstract

The utility model discloses a kind of integrated direct current power supply compressors, it is related to compressor technical field, wherein, integrated direct current power supply compressor includes compressor body and direct current controller module, the direct current controller module is installed on the compressor body, and with the compressor electric connection, the direct current controller module includes electrically connected busbar filter module and inverter module, the busbar filter module includes busbar and multiple capacitors installed on busbar, the busbar has two ends oppositely, the input interface and output interface of the busbar are located at the two ends of the busbar respectively, and the input interface and the output interface are located at the two sides of the multiple capacitors. The technical scheme provided by the utility model is used to solve the deficiency of existing compressor in direct current power supply application, realizes the goal of low cost and rapid deployment.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to an integrated DC-powered compressor, which is suitable for refrigeration applications under DC power supply systems. Background Technology

[0002] DC power supply technology, with its advantages of low line cost, high reliability, no inductive reactance, and no synchronization issues, has been widely used in data center construction, becoming the main energy supply system. However, traditional refrigeration compressors mostly use AC power and cannot be directly applied to DC power supply systems. Upgrading existing AC-powered compressors to DC power not only requires the manufacture of additional DC controllers, increasing costs, but also results in a large volume of traditional compressor systems composed of multiple components such as rectifiers, inverters, and the compressor itself, making it difficult to meet the high-integration and rapid deployment requirements of environments like data centers.

[0003] Therefore, this application proposes a novel integrated DC controller for compressors to solve the above problems. Utility Model Content

[0004] This invention proposes an integrated DC-powered compressor to address the shortcomings of existing compressors in DC power applications, achieving the goals of low cost and rapid deployment.

[0005] To achieve the above objectives, the present invention proposes an integrated DC-powered compressor, comprising a compressor body and a DC controller module. The DC controller module is mounted on the compressor body and electrically connected to the compressor. The DC controller module includes an electrically connected bus filter module and an inverter module. The bus filter module includes a busbar and multiple capacitors mounted on the busbar. The busbar has two oppositely arranged ends. The input interface and the output interface of the busbar are located at the two ends of the busbar, respectively, and the input interface and the output interface are located on both sides of the multiple capacitors.

[0006] In one embodiment, the inverter module is located below the busbar; the inverter module includes a heat sink mounted on the compressor body and a plurality of IGBT modules mounted on the heat sink, the input terminals of the IGBT modules being connected to the output interface of the busbar.

[0007] In one embodiment, the DC controller module further includes an input copper bus and an output copper bus. The input copper bus is connected to the input interface of the bus filter module, and the output copper bus is used to connect to the output terminal of the IGBT module.

[0008] In one embodiment, the incoming copper busbar includes a positive copper busbar and a negative copper busbar, the positive copper busbar including a first positive copper busbar and a second positive copper busbar; a contactor is also provided between the first positive copper busbar and the second positive copper busbar, the contactor being used to control the on / off state of the positive copper busbar.

[0009] In one embodiment, the heat sink is further provided with a charging resistor and a relay. One end of the charging resistor is connected to the first positive copper busbar, and the other end is connected to the second positive copper busbar through the relay.

[0010] In one embodiment, the DC controller module further includes a PCB board and a plurality of insulating pillars. The PCB board is located above the heat sink, and the plurality of insulating pillars are disposed between the PCB board and the heat sink, with the insulating pillars serving to support the PCB board.

[0011] In one embodiment, the DC controller module further includes a T-shaped connector for connecting the IGBT module and the output copper busbar. The T-shaped connector includes a copper busbar plate and a copper post connected together. The copper busbar plate is used to connect to the output terminal of the IGBT module. The copper post extends toward and through the PCB board, and the output copper busbar is connected to the portion of the copper post extending out of the PCB board. A current sensor is provided on the PCB board, and the current sensor has a via through which the copper post passes.

[0012] In one embodiment, the heat sink is provided with a continuous flow channel, the inlet and outlet of the flow channel corresponding to the cooling inlet and cooling return hole of the compressor cooling channel, respectively; the refrigerant in the compressor body flows into the inlet of the flow channel from the cooling inlet and flows into the cooling return hole through the outlet of the flow channel to achieve compressor cooling.

[0013] In one embodiment, the flow channel includes a plurality of connected straight segments and a plurality of curved segments.

[0014] In one embodiment, the DC controller module further includes a terminal block and bakelite, the terminal block being mounted on the housing of the compressor body, the bakelite being mounted on the terminal block, the copper busbar being mounted on top of the bakelite, and there being a gap between the copper busbar and the terminal block.

[0015] The technical solution of this utility model adopts an integrated design that enables the compressor to be directly adapted to a DC power supply system, thereby solving the shortcomings of existing compressors in DC power supply applications and achieving the goals of low cost and rapid deployment. 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 an embodiment of the integrated DC-powered compressor provided by this utility model;

[0018] Figure 2 A partial structural schematic diagram of an embodiment of the integrated DC-powered compressor provided by this utility model;

[0019] Figure 3 Another structural schematic diagram of an embodiment of the integrated DC-powered compressor provided by this utility model;

[0020] Figure 4 A partial structural schematic diagram of an embodiment of the integrated DC-powered compressor provided by this utility model;

[0021] Figure 5 A schematic diagram of the structure at the connection point between the heat sink and the compressor body of the integrated DC power compressor provided by this utility model;

[0022] Figure 6 A schematic diagram of the heat sink of an embodiment of the integrated DC power supply compressor provided by this utility model.

[0023] Explanation of icon numbers:

[0024] 100. Integrated DC-powered compressor; 10. Compressor body; 11. Cooling inlet; 12. Cooling reflux hole; 20. DC controller module; 21. Busbar filter module; 211. Busbar; 2111. Input interface; 2112. Output interface; 212. Capacitor; 22. Inverter module; 221. Heat sink; 2211. Flow channel; 2211a. Inlet; 2211b. Outlet; 222. IGBT module; 23. Inlet copper busbar; 231. First positive copper busbar; 232. Second positive copper busbar; 24. Outlet copper busbar; 25. Contactor; 26. Charging resistor; 27. Relay; 28. PCB board; 29. ​​Insulating post; 29a. T-shaped connector; 291a. Copper busbar plate; 292a. Copper post; 29b. Terminal block; 29c. Bakelite.

[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] Traditional compressors are insufficient to meet the DC power supply requirements of highly integrated, rapidly deployable environments such as data centers. Therefore, this invention proposes an integrated DC power supply compressor.

[0030] Please see Figures 1 to 4 As shown, in one embodiment of this utility model, the integrated DC-powered compressor 100 includes a compressor body 10 and a DC controller module 20. The DC controller module 20 is mounted on the compressor body 10 and electrically connected to the compressor. The DC controller module 20 includes a bus filter module 21 and an inverter module 22 that are electrically connected. The bus filter module 21 includes a busbar 211 and a plurality of capacitors 212 mounted on the busbar 211. The busbar 211 has two oppositely arranged ends. The input interface 2111 and the output interface 2112 of the busbar 211 are respectively located at the two ends of the busbar 211, and the input interface 2111 and the output interface 2112 are located on both sides of the plurality of capacitors 212.

[0031] Specifically, the compressor body 10, as the core execution unit of the entire compression system, mainly consists of key mechanical components such as the cylinder, piston, and crankshaft. The cylinder provides space for the reciprocating motion of the piston, which, driven by the crankshaft, performs periodic motion to compress the gas, transforming low-pressure gas into high-pressure gas, which is the foundation for the refrigeration cycle. The DC controller module 20 is tightly integrated into the compressor body 10. It consists of a bus filter module 21 and an inverter module 22, which are closely connected by electrical circuits. The busbar 211 of the bus filter module 21 is the key carrier for current transmission, and multiple capacitors 212 are installed in an orderly manner on the busbar 211. The two ends of the busbar 211 are respectively provided with an input interface 2111 and an output interface 2112, and these two interfaces are distributed on both sides of the multiple capacitors 212. The DC controller module 20 and the compressor body 10 are stably electrically connected through electrical circuits. An external DC power supply is connected to the input interface 2111 of the busbar filter module 21. The current flows on the busbar 211 and is first filtered by multiple capacitors 212 to remove noise and fluctuations in the unstable DC current, converting it into a smoother and more stable DC current. Then, it is output from the output interface 2112 of the busbar 211 and sent to the inverter module 22. After receiving the stable DC power, the inverter module 22 converts it into AC power with appropriate frequency and voltage to provide drive power for the motor of the compressor body 10, enabling the compressor to operate normally.

[0032] This application employs an integrated design that allows the compressor to directly adapt to a DC power supply system, eliminating the need for an additional rectifier stage as required by traditional compressors. This significantly simplifies the system structure and reduces equipment cost and complexity. The input interface 2111 and output interface 2112 of the busbar 211 are respectively located at both ends of the busbar 211, and are positioned on both sides of the capacitor 212. An external DC power supply is connected to the input interface 2111 of the busbar 211. After entering the busbar 211, the current first flows through multiple capacitors 212 mounted on the busbar 211. The capacitors 212 perform voltage equalization filtering on the current, removing voltage fluctuations and high-frequency noise. The filtered, stable DC current then flows out from the output interface 2112 of the busbar 211 to the inverter module 22, providing a stable DC power input for the inverter module 22.

[0033] Furthermore, the inverter module 22 is located below the busbar 211; the inverter module 22 includes a heat sink 221 mounted on the compressor body 10 and multiple IGBT modules 222 mounted on the heat sink 221, and the input terminal of the IGBT module 222 is connected to the output interface 2112 of the busbar 211.

[0034] Specifically, the heat sink 221 is mounted on the compressor body 10 and is generally made of a metal material with good thermal conductivity, such as aluminum alloy. Its main function is to dissipate the heat generated by the IGBT module 222 during operation, ensuring that the IGBT module 222 operates within a suitable temperature range. The IGBT module 222, or Insulated Gate Bipolar Transistor module, is a key power device for the inverter module 22 to achieve DC-AC conversion, featuring high voltage, high current handling capability, and fast switching characteristics. The input terminal of the IGBT module 222 is connected to the output interface 2112 of the busbar 211. The stable DC current filtered by the busbar filter module 21 flows out from the output interface 2112 of the busbar 211 and directly enters the input terminal of the IGBT module 222. In this way, the IGBT module 222 can convert the received DC power into AC power to provide power to the compressor body 10. The inverter module 22 is located below the busbar 211. This layout helps to optimize space utilization and makes the entire DC controller module 20 more compact. Placing the inverter module 22 below the busbar 211 fully utilizes the internal vertical space of the equipment, resulting in a smaller and more compact DC controller module 20. This is highly advantageous for space-constrained applications such as data centers and small cooling systems, improving equipment integration and installation flexibility. The IGBT module 222 generates significant heat during operation; failure to dissipate this heat promptly can negatively impact its performance and lifespan. The heat sink 221, mounted on the compressor body 10, effectively dissipates the heat generated by the IGBT module 222 using the compressor body's cooling system or its own heat dissipation structure. This efficient heat dissipation ensures the IGBT module 222 operates within a stable temperature environment, enhancing its reliability and stability and reducing malfunctions and damage caused by overheating.

[0035] Furthermore, the DC controller module 20 also includes an input copper busbar 23 and an output copper busbar 24. The input copper busbar 23 is connected to the input interface 2111 of the bus filter module 21, and the output copper busbar 24 is used to connect to the output terminal of the IGBT module 222.

[0036] Specifically, the incoming copper busbar 23 is made of highly conductive copper and its main function is to stably introduce external DC power into the input interface 2111 of the bus filter module 21, serving as a crucial power input channel. The outgoing copper busbar 24 is also made of copper and is used to transmit the AC power output from the IGBT module 222 to the compressor body 10, providing driving power for the compressor. One end of the incoming copper busbar 23 connects to the external DC power supply, and the other end is tightly connected to the input interface 2111 of the bus filter module 21 through welding, bolting, or other methods, ensuring that current flows smoothly from the external power supply into the bus filter module 21. One end of the outgoing copper busbar 24 connects to the output terminal of the IGBT module 222, leading out the AC power converted by the IGBT module 222; the other end connects to the corresponding interface of the compressor body 10, providing suitable power to the compressor. The use of the incoming copper busbar 23 and the outgoing copper busbar 24, thanks to the excellent conductivity of copper, significantly reduces the resistance in the circuit, reduces energy loss during transmission, and improves the efficiency of the entire power system. Meanwhile, the stable connection method ensures reliable current transmission and avoids malfunctions caused by poor contact.

[0037] Furthermore, the incoming copper busbar 23 includes a positive copper busbar and a negative copper busbar. The positive copper busbar includes a first positive copper busbar 231 and a second positive copper busbar 232. A contactor 25 is also provided between the first positive copper busbar 231 and the second positive copper busbar 232. The contactor 25 is used to control the on / off state of the positive copper busbar.

[0038] Specifically, contactor 25 is an electromagnetic switch device used to control the on / off state of a circuit, typically composed of an electromagnetic coil, contacts, and other components. In this system, contactor 25 is installed between the first positive copper busbar 231 and the second positive copper busbar 232. By controlling the energization and de-energization of the electromagnetic coil, the on / off state of the positive copper busbar circuit is controlled. Controlling the on / off state of the positive copper busbar via contactor 25 allows the system to flexibly turn the DC power input on or off according to actual needs. For example, during system startup, shutdown, or maintenance, the power can be easily cut off to ensure the safety of equipment and personnel. In case of abnormal circuit conditions (such as overload, short circuit, etc.), contactor 25 can be promptly disconnected to break the positive copper busbar circuit, preventing excessive current from damaging components such as the bus filter module 21, IGBT module 222, and compressor body 10, thus protecting the entire circuit system.

[0039] Furthermore, the heat sink 221 is also provided with a charging resistor 26 and a relay 27. One end of the charging resistor 26 is connected to the first positive copper busbar, and the other end is connected to the second positive copper busbar through the relay 27.

[0040] Specifically, the charging resistor 26 is typically constructed by winding a resistance wire around an insulating frame, or it may be a power-type resistor. Its function is to limit the current magnitude when the system is powered on, preventing excessive inrush current from damaging subsequent circuit components. The relay 27 is an electrical control device consisting of a control coil and contacts. By energizing and de-energizing the control coil, the contacts are closed and opened, thereby controlling the circuit's on / off state. One end of the charging resistor 26 is connected to the first positive copper busbar 231, and the other end is connected to one contact of the relay 27. The other contact of the relay 27 is connected to the second positive copper busbar 232. This connection method ensures that the current flowing from the first positive copper busbar 231 to the second positive copper busbar 232 must pass through the charging resistor 26 and the relay 27. In the entire DC controller module 20 circuit, at the instant the system is powered on, the relay 27 is in the open state. At this time, the current flows from the first positive copper busbar 231, is limited by the charging resistor 26, and then slowly charges the loads such as the bus capacitor 212. Once the charging process is complete or certain conditions are met, the control coil of relay 27 is energized, causing the contacts to close. At this point, current can flow directly from the first positive copper busbar 231 through the closed relay 27 to the second positive copper busbar 232, bypassing the charging resistor 26. At the moment of system power-on, the bus capacitor 212 and other loads are essentially in a short-circuit state. Without the limitation of the charging resistor 26, a large inrush current would be generated, potentially damaging components such as capacitor 212 and IGBT module 222. The presence of the charging resistor 26 allows the current to rise slowly, protecting the circuit components and extending their lifespan.

[0041] Furthermore, the DC controller module 20 also includes a PCB board 28 and multiple insulating posts 29. The PCB board 28 is located above the heat sink 221, and the multiple insulating posts 29 are disposed between the PCB board 28 and the heat sink 221, serving to support the PCB board 28. The DC controller module 20 also includes a T-shaped connector 29a for connecting the IGBT module 222 and the output copper busbar 24. The T-shaped connector 29a includes a copper busbar 291a and a copper post 292a connected together. The copper busbar 291a is used to connect to the output terminal of the IGBT module 222. The copper post 292a extends toward and through the PCB board 28, and the output copper busbar 24 is connected to the portion of the copper post 292a extending out of the PCB board 28. A current sensor is provided on the PCB board 28, and the current sensor has a through-hole through which the copper post 292a passes.

[0042] Specifically, the PCB board 28 is located above the heat sink 221. Multiple insulating posts 29 are vertically installed between the PCB board 28 and the heat sink 221, providing stable support for the PCB board 28 while ensuring good electrical insulation between them. The T-shaped connector 29a consists of connected copper busbars 291a and copper posts 292a. Copper has good conductivity and is used to achieve the electrical connection between the IGBT module 222 and the outgoing copper busbar 24, ensuring efficient power transmission. A current sensor is installed on the PCB board 28 to monitor the current flowing through the T-shaped connector 29a in real time, providing feedback signals to the control system for precise system control and protection. The copper busbar 291a is tightly connected to the output terminal of the IGBT module 222 by welding or bolting, enabling electrical conduction. The copper pillar 292a extends from the copper busbar 291a to the PCB board 28, passing vertically through the through-hole of the current sensor on the PCB board 28. The outgoing copper busbar 24 is connected to the portion of the copper pillar 292a extending out of the PCB board 28 by welding or bolting, thereby transferring the AC power output from the IGBT module 222 to the outgoing copper busbar 24. The through-hole of the current sensor allows the copper pillar 292a to pass through. When current flows through the copper pillar 292a, the current sensor can sense the magnitude of the current and transmit the signal to the control circuit on the PCB board 28.

[0043] The structure of this application is compact and the layout is reasonable: the PCB board 28 is located above the heat sink 221 and supported by the insulating pillar 29, making the structure of the entire DC controller module 20 more compact and making full use of space. At the same time, the reasonable layout facilitates the connection and wiring between components, reduces line length and interference, and improves the stability and reliability of the system. The use of the insulating pillar 29 effectively isolates the PCB board 28 and the heat sink 221, avoiding the risk of electrical short circuits and improving the safety of the system. In addition, the current sensor can monitor the current in real time. When the current is abnormal, the control system can take protective measures in time, further ensuring the safe operation of the system. The IGBT module 222 is connected to the output copper busbar 24 by a T-shaped connector 29a. The copper busbar plate 291a of the T-shaped connector 29a is connected to the pin of the IGBT module 222 and connected to the output copper busbar 24 by a copper pillar 292a, raising the height of the copper busbar and adapting it to the current sensor.

[0044] For further details, please refer to... Figure 5 and Figure 6As shown, the heat sink 221 has a continuous flow channel 2211. The inlet 2211a and outlet 2211b of the flow channel 2211 correspond to the cooling inlet 11 and cooling return hole 12 of the compressor cooling channel, respectively. The refrigerant in the compressor body 10 flows from the cooling inlet 11 into the inlet 2211a of the flow channel 2211, and flows into the cooling return hole 12 through the outlet 2211b of the flow channel 2211, thereby cooling the compressor.

[0045] Specifically, the heat sink 221, as a key component for heat exchange, is made of a metal material with good thermal conductivity, such as aluminum alloy. The heat sink 221 has continuous flow channels 2211 inside, used to guide the refrigerant flow and remove the heat generated during equipment operation. The flow channels 2211, formed by machining within the heat sink 221, have a specially designed shape and structure to optimize the refrigerant flow path and heat exchange efficiency. The compressor cooling channel is a channel within the compressor body 10 used for refrigerant circulation, including a cooling inlet 11 and a cooling return hole 12, which are connected to the inlet 2211a and outlet 2211b of the flow channels 2211 of the heat sink 221, forming a complete cooling circulation loop. The refrigerant acts as a heat transfer medium in the compressor cooling system. Common refrigerants include Freon, ammonia, and carbon dioxide, which can absorb heat from the equipment during flow and transfer heat through phase change or sensible heat transfer. The inlet 2211a of the flow channel 2211 is tightly connected to the cooling inlet 11 of the compressor cooling channel via a pipe or interface, ensuring that the refrigerant can flow smoothly into the flow channel 2211. The outlet 2211b of the flow channel 2211 is correspondingly connected to the cooling return hole 12, allowing the refrigerant after heat exchange to flow back to the compressor cooling channel, forming a closed cooling cycle. The layout of the flow channel 2211 inside the heat sink 221 matches the positions of the heat-generating components (such as IGBT module 222, charging resistor 26, relay 27, etc.) installed on the heat sink 221, so that the refrigerant can fully absorb the heat generated by these components.

[0046] This application integrates the heat sink 221 flow channel 2211 with the compressor cooling channel, utilizing the compressor's own refrigerant circulation for heat dissipation. This eliminates the need for a separate cooling system, simplifying the overall structure, reducing costs, and improving system integration and space utilization. The stable cooling cycle ensures the electrical and mechanical performance of the equipment, reduces the probability of failures due to overheating, improves the reliability and stability of the entire compressor system, and lowers maintenance frequency and costs.

[0047] Furthermore, the flow channel 2211 includes multiple connected straight segments and multiple curved segments.

[0048] Specifically, straight segments and curved segments are connected sequentially using a specific connection method to form a continuous flow channel 2211. This connection method requires ensuring a smooth transition at the connection points to reduce resistance to refrigerant flow and energy loss. For example, the two ends of a curved segment are connected to straight segments respectively. At the connection point, the tangent direction of the curve should be as consistent as possible with the direction of the straight line to ensure that the refrigerant can smoothly flow from the straight segment into the curved segment, and then from the curved segment into the next straight segment. The combination of straight and curved segments can be flexibly designed according to the shape of the heat sink 221 and the layout of the internal heating elements to better adapt to limited space. By rationally planning the direction of the flow channel 2211, the internal space of the heat sink 221 can be fully utilized, allowing the refrigerant to be distributed more evenly around the heating elements, improving the uniformity of heat dissipation and avoiding local overheating.

[0049] Furthermore, the DC controller module 20 also includes a terminal block 29b and a bakelite 29c. The terminal block 29b is mounted on the housing of the compressor body, the bakelite 29c is mounted on the terminal block 29b, and the copper busbar 24 is mounted on top of the bakelite 29c. There is a gap between the copper busbar 24 and the terminal block 29b, which is more than 10mm.

[0050] Specifically, terminal block 29b is made of metal, such as aluminum alloy, possessing high strength and rigidity, providing stable support for the entire installation structure, and is mounted on the compressor housing. Bakelite 29c is made of phenolic plastic, possessing excellent insulation properties, and is mounted on terminal block 29b to isolate the copper busbar 24 from terminal block 29b, preventing electrical continuity. Bakelite 29c is fixed to terminal block 29b using bolts, adhesive, or other methods, ensuring a tight connection between the two and providing stable support for the copper busbar 24. The copper busbar 24 is mounted on top of Bakelite 29c and connected to Bakelite 29c via bolts, ensuring good electrical contact while maintaining a distance of at least 10mm from terminal block 29b.

[0051] The metal terminal block 29b provides sufficient structural rigidity to withstand the weight of components such as the copper busbar 24 and bakelite 29c, as well as the vibrations and impacts generated during compressor operation. This ensures the stability of the entire structure and reduces component damage and loosening of electrical connections due to mechanical deformation. Although the terminal block 29b is made of metal, the insulation provided by the bakelite 29c and the spacing between the copper busbar 24 and the terminal block 29b effectively prevent electrical short circuits and leakage, ensuring the safety of the electrical system. This structural design allows the various components to work together to form a stable and reliable whole. During long-term operation, it maintains good performance, reduces the probability of failure, and improves the reliability and service life of the entire DC controller module 20 and compressor system.

[0052] 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. An integrated DC-powered compressor, characterized in that, include: Compressor body; A DC controller module is mounted on the compressor body and electrically connected to the compressor. The DC controller module includes a bus filter module and an inverter module that are electrically connected. The bus filter module includes a busbar and multiple capacitors mounted on the busbar. The busbar has two opposite ends. The input interface and the output interface of the busbar are located at the two ends of the busbar, and the input interface and the output interface are located on both sides of the multiple capacitors.

2. The integrated DC-powered compressor as described in claim 1, characterized in that, The inverter module is located below the busbar; the inverter module includes a heat sink mounted on the compressor body and multiple IGBT modules mounted on the heat sink, and the input terminal of the IGBT module is connected to the output interface of the busbar.

3. The integrated DC-powered compressor as described in claim 2, characterized in that, The DC controller module also includes an input copper bus and an output copper bus. The input copper bus is connected to the input interface of the bus filter module, and the output copper bus is used to connect to the output terminal of the IGBT module.

4. The integrated DC-powered compressor as described in claim 3, characterized in that, The incoming copper busbar includes a positive copper busbar and a negative copper busbar. The positive copper busbar includes a first positive copper busbar and a second positive copper busbar. A contactor is also provided between the first positive copper busbar and the second positive copper busbar. The contactor is used to control the on / off state of the positive copper busbar.

5. The integrated DC-powered compressor as described in claim 4, characterized in that, The heat sink is also provided with a charging resistor and a relay. One end of the charging resistor is connected to the first positive copper busbar, and the other end is connected to the second positive copper busbar through the relay.

6. The integrated DC-powered compressor as described in claim 5, characterized in that, The DC controller module also includes a PCB board and multiple insulating pillars. The PCB board is located above the heat sink, and the multiple insulating pillars are disposed between the PCB board and the heat sink. The insulating pillars are used to support the PCB board.

7. The integrated DC-powered compressor as described in claim 6, characterized in that, The DC controller module further includes a T-shaped connector for connecting the IGBT module and the output copper busbar. The T-shaped connector includes a copper busbar plate and a copper column connected together. The copper busbar plate is used to connect to the output terminal of the IGBT module. The copper column extends toward and through the PCB board, and the output copper busbar is connected to the portion of the copper column extending out of the PCB board. A current sensor is provided on the PCB board, and the current sensor has a via through which the copper column passes.

8. The integrated DC-powered compressor as described in claim 7, characterized in that, The heat sink is provided with a continuous flow channel, and the inlet and outlet of the flow channel correspond to the cooling inlet and cooling return hole of the compressor cooling channel, respectively. The refrigerant in the compressor body flows into the inlet of the flow channel from the cooling inlet and flows into the cooling return hole through the outlet of the flow channel to achieve the cooling of the compressor.

9. The integrated DC-powered compressor as described in claim 8, characterized in that, The flow channel includes multiple connected straight segments and multiple curved segments.

10. The integrated DC-powered compressor as described in claim 3, characterized in that, The DC controller module also includes a terminal block and bakelite. The terminal block is mounted on the housing of the compressor body, the bakelite is mounted on the terminal block, the copper busbar is mounted on the top of the bakelite, and there is a gap between the copper busbar and the terminal block.

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