Medical equipment power distribution system and medical equipment

Abstract

The utility model relates to a medical equipment power distribution system and medical equipment. The medical equipment power distribution system comprises a main load loop and an external power supply. The main load loop comprises main load equipment, the main load loop further comprises an energy storage subsystem, one end of the energy storage subsystem is connected with an external power supply, and the other end of the energy storage subsystem is connected with the main load equipment; the main load device is powered by the energy storage subsystem. By arranging the energy storage subsystem in the main load loop, the energy storage subsystem can be charged by obtaining electric energy from the external power supply for multiple times, and the electric energy with large enough capacity is stored, so that the external power supply does not need to provide the electric energy with high power distribution capacity, the capacitance configuration requirement of the external power supply is reduced, and the cost is reduced. And the construction cost of field power distribution is also reduced.

Description

Technical Field

[0001] The present application relates to the field of medical technologies, and particularly to a power distribution system for medical equipment and medical equipment. Background Art

[0002] With the development of medicine and technology, more and more medical equipment has been applied in hospitals, providing a basis for doctors' work. And power supply is an important part of medical equipment and a prerequisite for the normal operation of medical equipment.

[0003] In related technologies, in medical equipment, the power connection line of the medical equipment is usually connected to an external three-phase power grid distribution box. For example, the three-phase interface from the hospital three-phase transformer to the wall distribution box in the CT scanning room is used to realize the power supply of the external power to the medical equipment.

[0004] However, in related technologies, in the case of a large capacity demand of medical equipment for external network power, there is a technical problem of high construction cost for site power distribution. Summary of the Utility Model

[0005] Based on this, it is necessary to provide a power distribution system for medical equipment and medical equipment to reduce the construction cost of site power distribution in view of the above technical problems.

[0006] In a first aspect, an embodiment of the present application provides a power distribution system for medical equipment. The power distribution system for medical equipment includes a main load circuit and an external power supply; the main load circuit includes a main load device, and the main load circuit further includes an energy storage subsystem. One end of the energy storage subsystem is connected to the external power supply, and the other end of the energy storage subsystem is connected to the main load device;

[0007] The main load device is powered by the energy storage subsystem.

[0008] In one embodiment, the power distribution system for medical equipment further includes an auxiliary load circuit; the auxiliary load circuit includes an auxiliary load device, and the auxiliary load device is connected to the external power supply;

[0009] The auxiliary load device is powered by the external power supply.

[0010] In one embodiment, the power distribution system for medical equipment further includes an auxiliary load circuit; the auxiliary load circuit includes an auxiliary load device, and the auxiliary load device is connected to the energy storage subsystem;

[0011] When the external power supply is in an unavailable state, the auxiliary load device is powered by the energy storage subsystem.

[0012] In one embodiment, the energy storage subsystem includes a first DC power source module, a second DC power source module, a first energy converter, and a second energy converter;

[0013] One end of the first DC power source module is connected to the first energy converter, and the other end of the first DC power source module is connected to the second energy converter; the first energy converter is also connected to an external power source;

[0014] One end of the second DC power source module is connected to the second energy converter, and the other end of the second DC power source is connected to the load device in the main load circuit;

[0015] The first energy converter is used to convert alternating current into medium-voltage direct current; the second energy converter is used to convert medium-voltage direct current into high-voltage direct current.

[0016] In one embodiment, the DC bus voltage levels of the second DC power source module include a first voltage level and a second voltage level; the second voltage level is lower than the first voltage level.

[0017] In one embodiment, the first DC power source module is an energy density type power source module; the second DC power source module is a power density type power source module.

[0018] In one embodiment, the energy storage subsystem includes a first energy converter, a second energy converter, and a second DC power source module;

[0019] One end of the first energy converter is connected to an external power source, and the other end of the first energy converter is connected to the second energy converter; one end of the second DC power source module is connected to the second energy converter, and the other end of the second DC power source is connected to the load device in the main load circuit.

[0020] In one embodiment, the external power source includes a three-phase AC power source, a single-phase AC power source, or a DC power source.

[0021] In one embodiment, the switching element in the medical device power distribution system is an electronic switch.

[0022] In a second aspect, an embodiment of the present application further provides a medical device, which includes the medical device power distribution system as in the first aspect.

[0023] The above-mentioned medical device power distribution system and medical device. The medical device power distribution system includes a main load circuit and an external power supply. The main load circuit includes a main load device, and the main load circuit also includes an energy storage subsystem. One end of the energy storage subsystem is connected to the external power supply, and the other end of the energy storage subsystem is connected to the main load device. The main load device is powered by the energy storage subsystem. In this medical device power distribution system, by setting an energy storage subsystem in the main load circuit, the energy storage subsystem can be charged by obtaining electric energy from the external power supply multiple times, and store electric energy with a sufficiently large capacity. In this way, the external power supply does not need to provide electric energy with a very high power distribution capacity, which reduces the requirement for the capacitance configuration of the external power supply, and thus the construction cost of the site power distribution is also reduced. When the main load device in the main load circuit operates under different power conditions, the electric energy stored in the energy storage subsystem can be used to supply power to the main load device, greatly reducing the capacitance demand of the medical device for external power supply, and thus reducing the construction cost of the site power distribution. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of a medical device power distribution system in an embodiment;

[0026] Figure 2 Schematic diagram of a medical device power distribution system in another embodiment;

[0027] Figure 3 Schematic diagram of a medical device power distribution system in another embodiment;

[0028] Figure 4 Schematic diagram of a medical device power distribution system in another embodiment;

[0029] Figure 5 Schematic diagram of a first DC power source in an embodiment;

[0030] Figure 6 Schematic diagram of a second DC power source in an embodiment;

[0031] Figure 7 Schematic diagram of a medical device power distribution system in another embodiment;

[0032] Figure 8 Schematic diagram of the connection relationship of each component in a medical device power distribution system in an embodiment. Detailed Embodiments

[0033] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0035] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0036] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0037] With the development of medicine and technology, more and more medical devices are being used in hospitals, providing a diagnostic and treatment basis for doctors' work. The power supply system is an important part of medical devices and is a prerequisite for the normal operation of medical devices.

[0038] Taking a Computed Tomography (CT) device as an example, in the related art, usually the power connection cable of the CT device is connected to an external three-phase power grid distribution box, for example, the three-phase interface of the hospital three-phase transformer to the wall-mounted distribution box in the CT scanning room, to realize the power supply of the external power to the CT device.

[0039] However, in the related art, in the face of the situation where medical devices have a large demand for the capacity of external network power, there is a technical problem of high construction cost of site power distribution.

[0040] Based on this, the present application provides a power distribution system for medical equipment, including a main load circuit and an external power supply; the main load circuit includes a main load device, and the main load circuit further includes an energy storage subsystem. One end of the energy storage subsystem is connected to the external power supply, and the other end of the energy storage subsystem is connected to the main load device; the main load device is powered by the energy storage subsystem. In this medical equipment power distribution system, by setting an energy storage subsystem in the main load circuit, the energy storage subsystem can be charged by obtaining electrical energy from the external power supply multiple times, and store electrical energy with a sufficiently large capacity. In this way, the external power supply does not need to provide electrical energy with a very high power distribution capacity, and this design reduces the requirement for the capacitance configuration of the external power supply, and thus the construction cost of site power distribution is also reduced accordingly. When the main load device in the main load circuit is operating under different power operation conditions, the electrical energy stored in the energy storage subsystem can be used to supply power to the main load device, greatly reducing the capacitance demand of the medical equipment for external power supply, and thus reducing the construction cost of site power distribution.

[0041] In an exemplary embodiment, as Figure 1 shown, a power distribution system 1 for medical equipment is provided. The power distribution system 1 for medical equipment includes a main load circuit 10 and an external power supply 20; the main load circuit 10 includes a main load device 11, and the main load circuit 10 further includes an energy storage subsystem 12. One end of the energy storage subsystem 12 is connected to the external power supply 20, and the other end of the energy storage subsystem 12 is connected to the main load device 11;

[0042] the main load device 11 is powered by the energy storage subsystem 12.

[0043] In the embodiment of the present application, when the main load device 11 in the main load circuit 10 is operating, it usually has different power level requirements, including low power (such as ≤30kW), medium power (such as in the range of 30 - 80kW), and high power (such as ≥80kW), etc.

[0044] Among them, the main load device 11 refers to the key component or terminal load that provides the medical scanning system to perform the scanning task, and is usually a load with high power requirements (usually with an electrical power requirement in the range of dozens of kW to more than 100kW). Taking the CT system as an example, the main load device 11 can refer to the high-voltage generator and the X-ray tube, etc. Taking the MRI magnetic resonance system as an example, the main load device 11 can refer to the GPA gradient power amplifier, etc.

[0045] In the related art, medical equipment is powered by an external power supply. In order to meet the power supply requirements of various power levels, usually the capacitance of the external power supply needs to reach the capacity of the highest power required by the medical equipment, and thus the construction cost of site power distribution will be very high.

[0046] In the embodiment of the present application, in order to reduce the construction cost of site power distribution, an energy storage subsystem 12 is provided in the main load circuit 10. The energy storage subsystem 12 can store electric energy through an external power supply 20. In this way, the external power supply 20 does not need to provide electric energy with a very high capacity, the capacitance of the external power supply 20 is reduced, and thus the construction cost of site power distribution will be reduced.

[0047] The main load device 11 of the main load circuit 10 is no longer directly powered by the external power supply 20. Instead, before the energy storage subsystem 12 provided in the main load circuit 10 powers the main load device 11, it can charge multiple times from the external power supply 20 to store electric energy with a sufficient large capacity. In this way, when the main load device 11 in the main load circuit 10 is in a high-power operating condition, the electric energy stored by the energy storage subsystem 12 can be used to power the main load device 11, rather than the external power supply 20 providing high-capacity electric energy for it.

[0048] In the embodiment of the present application, the external power supply 20 can support multiple power supply input types, which can include three-phase AC power supply, single-phase AC power supply, DC power supply, etc.

[0049] The medical device power distribution system provided by the embodiment of the present application includes a main load circuit and an external power supply; the main load circuit includes a main load device, and the main load circuit also includes an energy storage subsystem. One end of the energy storage subsystem is connected to the external power supply, and the other end of the energy storage subsystem is connected to the main load device; the main load device is powered by the energy storage subsystem. In this medical device power distribution system, by providing an energy storage subsystem in the main load circuit, the energy storage subsystem can be charged by obtaining electric energy from the external power supply multiple times to store electric energy with a sufficient large capacity. In this way, the external power supply does not need to provide electric energy with a very high power distribution capacity, this design reduces the requirement for the capacitance configuration of the external power supply, and thus the construction cost of site power distribution is also reduced accordingly. When the main load device in the main load circuit is in different power operating conditions, the electric energy stored by the energy storage subsystem can be used to power the main load device, greatly reducing the capacitance demand of the medical device for external power supply, and thus reducing the construction cost of site power distribution.

[0050] In addition to the main load circuit, the medical device power distribution system also includes an auxiliary load circuit. Based on this, in an exemplary embodiment, as Figure 2 shown, the medical device power distribution system 1 also includes an auxiliary load circuit 30; the auxiliary load circuit 30 includes an auxiliary load device 31, and the auxiliary load device 31 is connected to the external power supply 20;

[0051] The auxiliary load device 31 is powered by the external power supply 20.

[0052] In the embodiments of the present application, the auxiliary load circuit 30 includes at least one auxiliary load device 31. Herein, the auxiliary load device 31 refers to all the remaining components or loads other than the above-mentioned main load device 11, and generally has a relatively low power supply demand. Taking a CT system as an example, the auxiliary load device 31 includes a patient support bed, various loads on the CT gantry (such as a control board, an image detector, a radiator, a data signal processing transceiver, etc.), a main motor driver of the CT gantry, a console computer, an image reconstruction computer, etc.

[0053] Generally, compared with the main load device 11, the auxiliary load device 31 in the auxiliary load circuit 30 has a smaller power demand and can be directly powered by the external power supply 20. Therefore, the auxiliary load device 31 can be connected to the external power supply 20, and the external power supply 20 directly powers the auxiliary load device 31.

[0054] The medical device power distribution system provided by the embodiments of the present application further includes an auxiliary load circuit; the auxiliary load circuit includes an auxiliary load device, and the auxiliary load device is connected to an external power supply; the auxiliary load device is powered by the external power supply. In this medical device power distribution system, there is also an auxiliary load circuit, and the power demand of the auxiliary load circuit is small. The auxiliary load circuit can be connected to the external power supply, and the external power supply directly powers it.

[0055] When the external power supply is unavailable, it can be powered by the energy storage subsystem in the main load circuit. Based on this, in an exemplary embodiment, as Figure 3 shown, the medical device power distribution system 1 further includes an auxiliary load circuit 30; the auxiliary load circuit 30 includes an auxiliary load device 31, and the auxiliary load device 31 is connected to the energy storage subsystem 12;

[0056] The auxiliary load device 31 is powered by the energy storage subsystem 12 when the external power supply is in an unavailable state.

[0057] Generally, when the external power supply 20 is available, the auxiliary load device 31 in the auxiliary load circuit 30 can be powered by the external power supply 20 through the connection with the external power supply 20.

[0058] When the external power supply 20 is in an unavailable state, the external power supply 20 can no longer power the auxiliary load device 31 in the auxiliary load circuit 30. At this time, the auxiliary load device 31 can be connected to the energy storage subsystem 12 in the main load circuit 10, and the energy storage subsystem 12 powers the auxiliary load device 31.

[0059] The medical device power distribution system provided by the embodiments of the present application further includes an auxiliary load circuit in the medical device power distribution system; the auxiliary load circuit includes an auxiliary load device, and the auxiliary load device is connected to the energy storage subsystem; when the external power supply is in an unavailable state, the auxiliary load device is powered by the energy storage subsystem. In this medical device power distribution system, another optional way to power the auxiliary load device is provided. When the external power supply is unavailable, the auxiliary load device can be connected to the energy storage subsystem in the main load circuit, and the energy storage subsystem powers the auxiliary load device.

[0060] Based on any of the above embodiments, the composition of the above energy storage subsystem will be described. Based on this, in an exemplary embodiment, as Figure 4 shown, the energy storage subsystem 12 includes a first DC power source module 13, a second DC power source module 14, a first energy converter 15, and a second energy converter 16;

[0061] One end of the first DC power source module 13 is connected to the first energy converter 15, and the other end of the first DC power source module 13 is connected to the second energy converter 16; the first energy converter 15 is also connected to the external power supply 20;

[0062] One end of the second DC power source module 14 is connected to the second energy converter 16, and the other end of the second DC power source module 14 is connected to the main load device 11 in the main load circuit 10;

[0063] The first energy converter 15 is used to convert alternating current into medium-voltage direct current; the second energy converter 16 is used to convert medium-voltage direct current into high-voltage direct current.

[0064] A DC power source is a power supply device that can provide stable voltage, current, and power output. Different from general power supplies, a DC power source has greater current and voltage output capabilities and stronger stability, and its output capabilities can meet the needs of various electronic devices or power systems.

[0065] In the embodiments of the present application, the first DC power source module 13 is an energy density type power source module, and the second DC power source module 14 is a power density type power source module.

[0066] Among them, the first DC power source module 13 is as Figure 5 shown, and at least includes an energy density type energy storage unit, a sub-controller, a power semiconductor switch, passive devices, sensors, etc. The energy density type energy storage unit can but is not limited to using an electrochemical energy storage device, such as a lithium-based battery, a nickel-based battery, a sodium-based battery, a lead-acid battery, a solid-state battery, etc. The second DC power source module 14 is as Figure 6As shown, it includes at least a power density energy storage unit, a sub-controller, a power semiconductor switch, a passive device, a sensor, etc. The power density energy storage unit can but is not limited to using electromagnetic energy storage devices such as supercapacitors and superconducting magnetic energy storage. Among them, the power semiconductor switch includes but is not limited to using MOSFET, IGBT, etc.; the sub-controller can but is not limited to using a control board based on a single-chip microcomputer, MCU, DSP, FPGA, CPU, etc.; the passive device can be a power stage digital rheostat or a programmable electronic load, etc.

[0067] In addition, in the embodiment of the present application, the DC bus voltage levels of the second DC power source module include a first voltage level and a second voltage level; the second voltage level is lower than the first voltage level. Among them, the first voltage level can be 1000V, and the second voltage level can be 500V.

[0068] In this embodiment, the first energy converter 15 can be an AC-DC energy converter for converting the alternating current input from an external power source into direct current. The second energy converter 16 can be a DC-DC energy converter for converting the medium-voltage direct current input by the first energy converter 15 into high-voltage direct current.

[0069] It should be noted that in the embodiment of the present application, Figure 4 is based on Figure 2 the composition of the energy storage subsystem on the basis, Figure 1 or Figure 3 The composition of the energy storage subsystem in Figure 4 is also as

[0070] shown, and the embodiment of the present application will not elaborate and draw additional drawings on this.

[0070] In addition, in the embodiment of the present application, there can be only one DC power source in the energy storage subsystem, that is, only the second DC power source module is included. In an exemplary embodiment, as Figure 7 shown, the energy storage subsystem 12 includes a first energy converter 15, a second energy converter 16, and a second DC power source module 14;

[0071] One end of the first energy converter 15 is connected to the external power source 20, and the other end of the first energy converter 15 is connected to the second energy converter 16; one end of the second DC power source module 14 is connected to the second energy converter 16, and the other end of the second DC power source module 14 is connected to the main load device 11 in the main load circuit.

[0072] When the main load device 11 has a power supply demand, that is, it is powered only by the electric energy stored in the second DC power source module 14.

[0073] Such as Figure 8As shown, it is a schematic diagram of the connection relationship of each device in the medical device power distribution system. Among them, the auxiliary load circuit includes a stator-side load, a main motor unit, and a rotor-side load; the stator-side load, the main motor unit, and the rotor-side load are all connected to an external power supply 20 and powered by the external power supply 20; the stator-side load is also connected to a first DC power source module 13 through an electronic switch (S-P1); the main motor unit is also connected to a second DC power source module 14 through two electronic switches (S-N4, S-N5).

[0074] In the embodiment of the present application, the switching elements in the medical device power distribution system are all electronic switches, such as Figure 8 the shown S-N1, S-N2, S-N3, S-N4, S-N5, and S-P1, etc. In this embodiment, traditional mechanical hard-switching devices are not used, such as air switches, circuit breakers, relays, contactors, etc., but electronic switch devices with a device volume reduced by more than 80% are used, such as SiC or GaN MOSFETs (silicon carbide or gallium nitride metal oxide semiconductor field effect transistors); thus, the space occupied by the switching devices in the original distribution box of the medical device can be greatly reduced. The electronic switch device can be of a low-voltage and low-power level, or of a medium-voltage and medium-power level or a high-voltage and high-power level type.

[0075] Exemplarily, when the main load device 11 in the main load circuit 10 has a power supply requirement, the first DC power source module 13 and the second DC power source module 14 perform energy storage in advance. Continuing to refer to Figure 8 , when the first DC power source module 13 stores energy, the alternating current in the external power supply 20 is converted into direct current through a first energy converter 15, and then the converted direct current is input into the first DC power source module 13 for storage.

[0076] When the second DC power source module 14 stores energy, it can be charged by the first DC power source module 13. The first DC power source module 13 boosts the electric energy required by the second DC power source module 14 through a second energy converter 16, and inputs the boosted direct current into the second DC power source module 14 for storage.

[0077] Furthermore, when the main load device 11 in the main load circuit 10 has a power supply requirement, if the main load device 11 is in a low-power operating condition or a high-power operating condition, the second DC power source module 14 can input the stored electric energy into the main load device 11 to supply power to the main load device 11. Among them, if the main load device 11 is in a low-power operating condition, the second DC power source module 14 needs to adjust the output voltage level to the second voltage level of 500V; if the main load device 11 is in a high-power operating condition, the second DC power source module 14 needs to adjust the output voltage level to the first voltage level of 1000V.

[0078] If the main load device 11 is in a medium power operating condition, the first DC power source module 13 and the second DC power source module 14 can simultaneously supply power to the main load device 11 .

[0079] When the auxiliary load device 31 in the auxiliary load circuit 30 has a power supply demand, it can be directly powered by the external power supply 20. When the external power supply 20 is unavailable, it can be powered by the first DC power source module 13 and the second DC power source module 14 in the energy storage subsystem 1111. Figure 8 When the stator side load and the main motor unit in the auxiliary load circuit 30 have power supply requirements, the first DC power source module 13 can input the stored electric energy to the stator side load to power it, and the second DC power source module 14 can input the stored electric energy to the main motor unit to power it.

[0080] Continue to see Figure 6 When the second DC power source module 14 is used to supply power to the main load device 11 in the main load circuit 10, SU-P1 can be controlled to be disconnected, and SU-P4 can be controlled to be turned on, and the switch of SU-P5 can be controlled to be in a high-speed regulating on-off state, so as to output current to the main load device 11 in the main load circuit 10 to supply power to it. When the second DC power source module 14 needs to be charged, SU-P1 can be controlled to be turned on to deliver current to the capacitor module to charge it.

[0081] When in the mode without external power supply (i.e., the external power supply is unavailable), the power supply of all power levels required by the main load circuit 10 can be completed independently by the second DC power source module 14 or by the first DC power source module 13 and the second DC power source module 14 through the "power splitting method". Under the working condition of the two DC power source modules outputting together, the DC bus voltage of the medical equipment power distribution system is 500V voltage level (actually 400~500Vdc voltage range), and the first DC power source module 13 performs "active balancing" discharge for the second DC power source module 14 through the second inverter 16 to maintain the DC bus voltage stability of the medical equipment power distribution system (to prevent the potential risks of insufficient power supply or poor power quality of the main load circuit due to the discharge voltage drop of the internal single super capacitor module when using the 500V second DC power source module 14).

[0082] In the embodiments of the present application, the two DC power source modules may also not be limited to only using energy storage elements such as lithium-ion batteries, sodium batteries, and supercapacitors, and it is also feasible to introduce a flywheel energy storage unit as another power source. The photovoltaic system and the wind power system can also be connected to the DC bus, correspondingly expanding the storage capacity of the first DC power source module 13 and the second DC power source module 14, so as to realize the access, recovery, and utilization of green clean energy.

[0083] In addition, Figure 8 the slip ring in [] is a CPT high-frequency power ring. Among them, a stator-side transducer is designed on the input side of the slip ring, and this design can provide high-frequency electrical energy (voltage, current) for the CPT non-contact high-frequency power slip ring. The slip ring can also be a DC power ring, and in this case, the stator-side transducer is not included in the system.

[0084] The medical device power distribution system provided by the embodiments of the present application includes a first DC power source module, a second DC power source module, a first transducer, and a second transducer; one end of the first DC power source module is connected to the first transducer, and the other end of the first DC power source module is connected to the second transducer; the first transducer is also connected to an external power source; one end of the second DC power source module is connected to the second transducer, and the other end of the second DC power source is connected to the main load device in the main load circuit; the first transducer is used to convert alternating current into medium-voltage direct current; the second transducer is used to convert medium-voltage direct current into high-voltage direct current. In this medical device power distribution system, by setting the first DC power source module and the second DC power source module in the energy storage subsystem, the electrical energy of the external power source can be stored through the energy storage units in the first DC power source module and the second DC power source module, so that when the load device has a power supply demand, the stored electrical energy can be input to the load device through the first DC power source and the second DC power source module to supply power to it. And by setting the first transducer and the second transducer in the energy storage subsystem, the electrical energy of the external power source can be converted into a form that the DC power source module can support to realize the energy storage of the DC power source module.

[0085] In an exemplary embodiment, the present application also provides a medical device, and this medical device includes the medical device power distribution system in the above embodiment.

[0086] It can be understood that the design of each structure in the medical device power distribution system in the above embodiments is only one example to achieve the technical effects of the present application. In actual applications, it can also be adaptively deformed to achieve easily conceivable technical effects, and the present application embodiments do not limit its structure.

[0087] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in the present application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in the present application can be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.

[0088] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0089] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A power distribution system for medical equipment, characterized in that: The medical equipment power distribution system (1) comprises a main load circuit (10) and an external power source (20); the main load circuit (10) comprises a main load device (11), and the main load circuit (10) further comprises an energy storage subsystem (12), one end of the energy storage subsystem (12) is connected to the external power source (20), and the other end of the energy storage subsystem (12) is connected to the main load device (11); The main load device (11) is powered by the energy storage subsystem (12).

2. The medical equipment power distribution system according to claim 1, characterized in that: The medical equipment power distribution system (1) further comprises an auxiliary load circuit (30); the auxiliary load circuit (30) comprises an auxiliary load device (31), and the auxiliary load device (31) is connected to the external power source (20); The auxiliary load device (31) is powered by the external power source (20).

3. The medical equipment power distribution system according to claim 1, characterized in that: The medical equipment power distribution system (1) further comprises an auxiliary load circuit (30); the auxiliary load circuit (30) comprises an auxiliary load device (31), and the auxiliary load device (31) is connected to the energy storage subsystem (12); The auxiliary load device (31) is powered by the energy storage subsystem (12) when the external power source (20) is in an unavailable state.

4. The medical equipment power distribution system according to any one of claims 1 to 3, characterized in that: The energy storage subsystem (12) comprises a first DC power source module (13), a second DC power source module (14), a first energy converter (15) and a second energy converter (16); One end of the first DC power source module (13) is connected to the first inverter (15), and the other end of the first DC power source module (13) is connected to the second inverter (16); the first inverter (15) is also connected to the external power source (20); One end of the second DC power source module (14) is connected to the second energy converter (16), and the other end of the second DC power source module (14) is connected to a main load device (11) in the main load circuit (10); The first energy converter (15) is used to convert alternating current into medium-voltage direct current; and the second energy converter (16) is used to convert medium-voltage direct current into high-voltage direct current.

5. The medical equipment power distribution system according to claim 4, characterized in that: The DC bus voltage level of the second DC power source module (14) comprises a first voltage level and a second voltage level; the second voltage level is lower than the first voltage level.

6. The medical equipment power distribution system according to claim 4, characterized in that: The first DC power source module (13) is an energy density type power source module; and the second DC power source module (14) is a power density type power source module.

7. The medical equipment power distribution system according to any one of claims 1 to 3, characterized in that: The energy storage subsystem (12) comprises a first energy converter (15), a second energy converter (16) and a second DC power source module (14); One end of the first inverter (15) is connected to the external power source (20), and the other end of the first inverter (15) is connected to the second inverter (16); one end of the second DC power source module (14) is connected to the second inverter (16), and the other end of the second DC power source is connected to the main load device (11) in the main load circuit (10).

8. The medical equipment power distribution system according to any one of claims 1 to 3, characterized in that: The external power source (20) comprises a three-phase AC power source, a single-phase AC power source or a DC power source.

9. The medical equipment power distribution system according to any one of claims 1 to 3, characterized in that: The switch element in the medical equipment power distribution system (1) is an electronic switch.

10. A medical device, characterized in that: The medical device comprises a medical device power distribution system (1) as claimed in any one of claims 1 to 9.

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