Switching output conversion device

Abstract

A switching output conversion device is provided with a total rectifier module, a total drive module, a total relay module and a power module; the total rectifier module has multiple groups of rectifier modules, each group of rectifier modules is provided with multiple sub-rectifier modules, and multiple sub-rectifier modules of each group of rectifier modules respectively input alternating voltages in the same voltage range; the total drive module is provided with multiple groups of drive modules, each group of drive modules is provided with multiple sub-drive modules, and each sub-drive module is connected with a corresponding sub-rectifier module; the total relay module is provided with multiple groups of relay modules, each group of relay modules is provided with multiple sub-relay modules, and each sub-relay module is connected with a corresponding sub-drive module; any one sub-rectifier module outputs a direct current signal and inputs a sub-drive module, and the output end of the sub-drive module outputs a signal to a sub-relay module. The device has the characteristics of multiple path and multiple channel processing capability, wide voltage adaptation range, flexible logic output, stability and reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to power system technical field especially, and it is a kind of switch output conversion device. BACKGROUND

[0002] Switch output conversion device is a kind of electronic equipment, its function is to convert one switch output signal into the switch signal that external device can identify, to control the start, stop, positive and negative rotation etc.

[0003] In power system, switch output module can be used to control the operation of various power equipment, such as circuit breaker, contactor etc.

[0004] The switch output conversion device in prior art can only handle analog quantity in two relatively narrow voltage ranges of DC5V~DC24V and DC110V~DC220V. This limitation may make the prior art not flexible enough when facing different voltage requirements. The switch output conversion device in prior art can only convert analog quantity into single normally open or normally closed output. This single function limits the use of prior art in applications requiring more complex logic control. In addition, the switch output conversion device in prior art only provides one conversion channel, which is not suitable for scenarios that require simultaneous processing of multiple analog quantity inputs.

[0005] Therefore, it is necessary to provide a switch output conversion device to overcome the deficiencies of the prior art. SUMMARY

[0006] The utility model discloses a switch output conversion device, which has the characteristics of multi-channel processing capability, wide voltage range, flexible logic output, good stability and reliability.

[0007] The utility model discloses a switch output conversion device, which has the characteristics of multi-channel processing capability, wide voltage range, flexible logic output, good stability and reliability.

[0008] A switch output conversion device is provided, which is provided with a total rectifier module, a total drive module, a total relay module and a power module.

[0009] The total rectifier module is provided with multiple groups of rectifier modules, different groups of rectifier modules are respectively used for inputting AC voltages of different voltage ranges, each group of rectifier modules is provided with multiple sub-rectifier modules, and the multiple sub-rectifier modules of one group of rectifier modules respectively input AC voltages of the same voltage range.

[0010] The total driving module is provided with multiple groups of driving modules corresponding to the multiple groups of rectifier modules, each group of driving modules is provided with multiple sub-driving modules, and each sub-driving module is connected with a corresponding sub-rectifier module.

[0011] The total relay module is provided with multiple groups of relay modules corresponding to the multiple groups of driving modules, each group of relay modules is provided with multiple sub-relay modules, and each sub-relay module is connected with a corresponding sub-driving module.

[0012] Any one sub-rectifier module outputs a DC signal and inputs the DC signal to a unique corresponding sub-driving module, and the output end of the sub-driving module outputs a signal to a unique corresponding sub-relay module.

[0013] The power module supplies power to the sub-relay module and the driving module.

[0014] Preferably, the switch output conversion device has the total rectifier module provided with at least one group of rectifier modules for inputting 5V ～ 60V AC voltage input, one group of rectifier modules for inputting 60V ～ 140V AC voltage input, and one group of rectifier modules for inputting 140V ～ 300V AC voltage input.

[0015] The rectifier module for inputting 5V ～ 60V AC voltage input outputs 5V ～ 60V DC voltage after rectification.

[0016] The rectifier module for inputting 60V ～ 140V AC voltage input outputs 60V ～ 140V DC voltage after rectification.

[0017] The rectifier module for inputting 140V ～ 300V AC voltage input outputs 140V ～ 300V DC voltage after rectification.

[0018] Preferably, the switch output conversion device has the total rectifier module provided with 3-10 groups of rectifier modules, and each group of rectifier modules is provided with 3-10 sub-rectifier modules.

[0019] Preferably, the switch output conversion device has one group of rectifier modules provided with four sub-rectifier modules.

[0020] Preferably, the switch output conversion device is further provided with an input-output interface module.

[0021] The sub rectifier module and the sub drive module are connected through the input-output interface module, and the sub drive module and the relay module are connected through the input-output interface module.

[0022] Preferably, the switch output conversion device is further provided with an input-output interface module.

[0023] One end of the diode D2 is connected with the DC output end of the corresponding sub rectifier module, the other end of the diode D2 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with the pin 1 of the optocoupler U1, the pins 2 and 4 of the optocoupler U1 are grounded, the pin 3 of the optocoupler U1 is connected with one end of the diode D1, the other end of the diode D1 and the pin 1 of the relay U2 are connected with +24V potential.

[0024] The JDQ12 and the JDQ17 are the common ends of the relay U2, the JDQ14 and the JDQ15 are the normally open ends, and the JDQ12 and the JDQ17 are the normally closed ends.

[0025] Preferably, the switch output conversion device is further provided with an input-output interface module.

[0026] Preferably, the switch output conversion device is further provided with an input-output interface module.

[0027] Preferably, the switch output conversion device is further provided with an input-output interface module.

[0028] Preferably, the switch output conversion device is further provided with an input-output interface module.

[0029] The utility model discloses a switching quantity output conversion device, be provided with total rectifier module, total drive module, total relay module and power module, total rectifier module is provided with multiple rectifier modules, and different groups of rectifier modules are used to input different voltage range ac voltage respectively, and each rectifier module is provided with multiple sub rectifier modules, and multiple sub rectifier modules of a rectifier module input ac voltage of the same voltage range respectively, total drive module is provided with multiple drive modules corresponding with multiple rectifier modules respectively, and each drive module is provided with multiple sub drive modules, and each sub drive module is connected with corresponding sub rectifier module, total relay module is provided with multiple relay modules corresponding with multiple drive modules respectively, and each relay module is provided with multiple sub relay modules, and each sub relay module is connected with corresponding sub drive module, and any one sub rectifier module exports direct current signal and inputs to only corresponding one sub drive module, and the output end of sub drive module exports signal to only corresponding one sub relay module, and the power module is powered for sub relay module and drive module.

[0030] The technical scheme of the utility model has the following advantages:

[0031] 1. Enhanced channel processing capacity: by configuring multiple rectifier modules, switching quantity input modules and relay output modules, multiple signals can be processed simultaneously, solving the limitation of existing technology that can only process single channel. This is achieved through integrated multi-channel design, improving the adaptability of the system to multiple signal source monitoring and control.

[0032] 2. Broadened voltage adaptation range: the voltage processing range is widened to AC / DC 5V to AC / DC 300V, enhancing the universality of application. By designing rectifier modules and drive modules of different voltage ranges, and adding polarity reverse connection protection measures, more extensive voltage input compatibility is achieved.

[0033] 3. Improved flexibility of logic output: passive switching quantity output signals of positive and negative logic are provided, breaking the limitation of single logic output of existing technology. Through innovative relay module and drive module design, the utility model supports users to select positive logic or negative logic output according to needs, meeting the needs of complex control scenarios.

[0034] 4. Enhancement of integration and expandability: the utility model design is a highly integrated system, easy to functionally expand and customize according to needs, solving the problem of low integration, large system size and high power consumption of existing technology. Through modular design and flexible system architecture, the flexibility and future upgrade possibility of the system are improved.

[0035] 5. Optimized cost performance: integrated design not only reduces production and maintenance costs, but also improves the market competitiveness of the product, which is a significant improvement in cost-effectiveness ratio over existing technology.

[0036] 6. Enhanced disconnection friendliness: using rubber sockets matching the test line, realizing quick plug and unplug, greatly simplifying the operation process, reducing the complexity and time cost brought by traditional screw fixing or crimping mode, and improving the field operation efficiency.

[0037] Therefore, the switch quantity output conversion device has the characteristics of multi-channel processing capability, wide voltage adaptation range, flexible logic output, stability and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0038] The utility model is further described by using the drawings, but the contents in the drawings do not constitute any limitation to the utility model.

[0039] Figure 1 It is a principle diagram of the switch quantity output conversion device of the utility model.

[0040] Figure 2 It is a schematic diagram of the switch quantity output conversion device of the utility model.

[0041] Figure 3 It is a circuit diagram of a sub rectifier module of the switch quantity output conversion device of the utility model.

[0042] Figure 4 It is a circuit diagram of a sub relay module and corresponding sub drive module of the switch quantity output conversion device of the utility model. DETAILED DESCRIPTION

[0043] The utility model is further described by combining the following embodiments.

[0044] Embodiment 1.

[0045] A switch quantity output conversion device is provided with a total rectifier module, a total drive module, a total relay module and a power module.

[0046] The total rectifier module is provided with multiple groups of rectifier modules, and different groups of rectifier modules are respectively used to input alternating voltages of different voltage ranges; each group of rectifier modules is provided with multiple sub rectifier modules, and multiple sub rectifier modules of a group of rectifier modules respectively input alternating voltages of the same voltage range.

[0047] The total drive module is provided with multiple groups of drive modules corresponding to the multiple groups of rectifier modules; each group of drive modules is provided with multiple sub drive modules, and each sub drive module is connected with a corresponding sub rectifier module.

[0048] The total relay module is provided with multiple groups of relay modules corresponding to the multiple groups of drive modules; each group of relay modules is provided with multiple sub relay modules, and each sub relay module is connected with a corresponding sub drive module.

[0049] Any one sub rectifier module outputs DC signal and inputs to a unique corresponding one sub drive module, the output end of the sub drive module outputs signal to a unique corresponding one sub relay module.

[0050] The power module supplies power for the sub relay module and the drive module.

[0051] Among them, the total rectifier module is provided with at least one group of rectifier modules for inputting 5V-60V AC voltage input, one group of rectifier modules for inputting 60V-140V AC voltage input, and one group of rectifier modules for inputting 140V-300V AC voltage input.

[0052] The rectifier module for inputting 5V-60V AC voltage input outputs 5V-60V DC voltage after rectification, the rectifier module for inputting 60V-140V AC voltage input outputs 60V-140V DC voltage after rectification, and the rectifier module for inputting 140V-300V AC voltage input outputs 140V-300V DC voltage after rectification.

[0053] The total rectifier module is preferably provided with 3-10 groups of rectifier modules, and each group of rectifier modules is preferably provided with 3-10 sub rectifier modules. It should be noted that the number of rectifier modules provided in the total rectifier module can be flexibly set according to actual needs, and is not limited to 3-10 groups. The number of sub rectifier modules in each group of rectifier modules can be flexibly set according to actual needs, and is not limited to 3-10.

[0054] The switch output conversion device is also provided with an input-output interface module, which adopts a standard 4mm panel rubber socket made of pure copper wiring column and matched with a 4mm standard test line plug for supporting quick plug-in and plug-out. The sub rectifier module and the sub drive module are connected through the input-output interface module, and the sub drive module and the relay module are connected through the input-output interface module.

[0055] Power module: high-efficiency rectifier circuit is adopted to convert AC 220V power into stable DC 24V, providing reliable power supply for the relay module. The rated output voltage can be adjusted by ±10% through a potentiometer, and it has overload protection, overvoltage protection, overcurrent protection, short-circuit protection and under-voltage protection.

[0056] Rectifier module: responsible for rectifying the input AC signal into DC signal, providing appropriate control voltage for the drive module, thereby ensuring the normal work of the whole system and the accurate conversion of the signal. The rectifier module uses full-bridge rectification, and the output DC voltage is 90% of the input AC voltage. The forward peak voltage is not greater than 1.3V, the reverse repetitive peak voltage is between 100V and 1600V, and the insulation voltage is 2500V. The circuit diagram of one sub rectifier module is as follows Figure 3As shown.

[0057] Driver Module: This solution uses optocouplers as the drivers for the relay modules, achieving electrical isolation between the input and output circuits. Since optocouplers have no physical contacts, there is no contact wear issue. Compared to mechanical relays, optocouplers offer faster switching speeds, achieving microsecond-level response times, and have high resistance to external electromagnetic interference, ensuring accurate signal transmission. The main driver module includes at least three driver modules, corresponding to three input DC voltage ranges: DC5V~DC60V, DC60V~DC140V, and DC140V~DC300V, and includes reverse polarity protection.

[0058] Relay module: The coil excitation voltage is DC 24V, and it has two normally open and two normally closed contacts. The power consumption is about 0.53W, the coil contact withstand voltage is 5000V, the impulse voltage is 10000V, and the rated current is 10A.

[0059] like Figure 4 As shown, any sub-relay module and its corresponding sub-drive module are equipped with diode D2, resistor R1, optocoupler U1, diode D1, and relay U2.

[0060] One end of diode D2 is connected to the DC output terminal of the corresponding sub-rectifier module, the other end of diode D2 is connected to one end of resistor R1, the other end of resistor R1 is connected to pin 1 of optocoupler U1, pins 2 and 4 of optocoupler U1 are grounded, pin 3 of optocoupler U1 is connected to one end of diode D1, and the other end of diode D1 and pin 1 of relay U2 are connected to a +24V potential.

[0061] JDQ12 to JDQ17 are relay contacts, JDQ13 and JDQ16 are the common terminals of relay U2, JDQ14 and JDQ15 are normally open terminals, and JDQ12 and JDQ17 are normally closed terminals.

[0062] Resistor R1 has a resistance of 100 ohms, diode D1 is a Schottky diode of type SS14, and diode D2 is a reverse protection diode of type 1N4007. Optocoupler U1 can be either TLP521 or PC817, and relay U2 is of type G2R-2-24VDC.

[0063] Figure 4 In this circuit, the power supply is 24 volts DC. Diode D1 is an SS14 Schottky diode, used to prevent reverse current and protect the circuit.

[0064] Optoisolator 1, which contains a light-emitting diode (LED) and a phototransistor. The input of the optoisolator (connected to PC0 through resistor R1) controls the on-off of the LED, thereby controlling the conduction and cutoff of the phototransistor.

[0065] Resistor R1 (100 ohms), which is used to limit the current flowing through the LED of the optoisolator, protecting the LED from being damaged by excessive current.

[0066] PC0 and GND are connected to the output of the rectifier module, which is used to control the input of the optoisolator. D2 is a reverse prevention diode, model number 1N4007. The rectifier module and the drive module have added polarity reverse connection protection measures.

[0067] In the relay drive circuit, U2 is an optoisolator, and the output of U2 (pins 2 and 7) is connected to the drive circuit of the relay. When the internal LED of the optoisolator emits light, the phototransistor is turned on, allowing the relay coil to be powered, thereby changing the state of the relay contacts.

[0068] Relay array J1: This is a relay array that contains multiple relays. The relay array is used to control the switching state of multiple circuits.

[0069] Relay contacts JDQ11, JDQ12,..., JDQ18: These are the contacts of the relays, each relay has two contacts (normally open and normally closed). In this circuit, the contacts of the relays are connected together to form a relay array.

[0070] The circuit diagram uses an optoisolator to control the relay. The optoisolator provides electrical isolation between the input and output, protecting the control circuit from high voltage or noise. When the PC0 pin outputs a high-level signal, the LED of the optoisolator emits light, triggering the phototransistor to conduct, thereby activating the corresponding relay, controlling the circuit connected to the relay contacts.

[0071] Compared with the prior art switch output conversion device, the technical scheme of the utility model has the following advantages:

[0072] 1. Enhanced channel processing capacity: By configuring multiple rectifier modules, switch input modules and relay output modules, multiple signals can be processed simultaneously, solving the limitation of the prior art that can only process single channels. This is achieved through the integration of multi-channel design, improving the adaptability of the system to multiple signal source monitoring and control.

[0073] 2. Broadened voltage adaptation range: The voltage processing range is broadened to AC / DC 5V to AC / DC 300V, enhancing the universality of applications. By designing rectifier modules and drive modules of different voltage ranges, and adding polarity reverse connection protection measures, more extensive voltage input compatibility is achieved.

[0074] 3. Improved flexibility of logic output: Passive switching quantity output signals of both positive and negative logic are provided, breaking the limitations of single logic output in the prior art. Through innovative relay module and drive module design, the utility model supports users to select positive logic or negative logic output according to needs, meeting the needs of complex control scenarios.

[0075] 4. Enhanced integration and expandability: The utility model design is a highly integrated system, easy to expand and customize functions according to needs, solving the problem of low integration, large system size and high power consumption in the prior art. Through modular design and flexible system architecture, the flexibility of the system and the possibility of future upgrades are improved.

[0076] 5. Optimized cost performance: Integrated design not only reduces production and maintenance costs, but also improves the market competitiveness of the product, which is a significant improvement in cost-effectiveness ratio over the prior art.

[0077] 6. Enhanced disconnection line friendliness: Rubber sockets matching the test line are used to achieve quick plug-in, greatly simplifying the operation process, reducing the complexity and time cost brought by traditional screw fixation or crimping method, and improving the efficiency of on-site operation.

[0078] Therefore, the switching quantity output conversion device has the characteristics of multi-channel processing capability, wide voltage adaptation range, flexible logic output, stability and reliability.

[0079] Embodiment 2.

[0080] A switching quantity output conversion device, other structures are the same as embodiment 1, the difference is that: in this embodiment, the total rectifier module is provided with three groups of rectifier modules, and each group of rectifier modules is provided with four sub-rectifier modules. The drive module, the relay module and the rectifier module are correspondingly matched, as shown in Figure 2 、 Figure 3 as shown.

[0081] In this embodiment, the total rectifier module is provided with the first group of rectifier modules, the second group of rectifier modules and the third group of rectifier modules.

[0082] The first group of rectifier modules is used for inputting 5V-60V alternating voltage, and the first group of rectifier modules is provided with sub-rectifier module 1 to sub-rectifier module 4, and sub-rectifier module 1 to sub-rectifier module 4 all output 5V-60V direct current voltage signals.

[0083] The second group of rectifier modules is used for inputting 60V-140V alternating voltage, and the first group of rectifier modules is provided with sub-rectifier modules 5 to 8, and the sub-rectifier modules 5 to 8 all output 60V-140V direct current voltage signals.

[0084] The third group of rectifier modules is used for inputting 140V-300V alternating voltage, and the first group of rectifier modules is provided with sub-rectifier modules 9 to 12, and the sub-rectifier modules 9 to 12 all output 140V-300V direct current voltage signals.

[0085] The rectifier module is responsible for rectifying the input alternating current signal into a direct current signal, providing appropriate control voltage for the driving module, thereby ensuring the normal work of the whole system and the accurate conversion of the signal. The rectifier module uses full-bridge rectification, and the output direct current voltage is 90% of the input alternating current voltage. The forward peak voltage is not greater than 1.3V, the reverse repetitive peak voltage is between 100V and 1600V, and the insulation voltage is 2500V.

[0086] The driving module uses an optical coupler as the driving of the relay module, and realizes the electrical isolation between the input and output circuits. Since the optical coupler does not have physical contacts, there is no contact wear problem, and compared with the mechanical relay, the switching speed of the optical coupler is faster, and the response time can reach the microsecond level, and has high resistance to external electromagnetic interference, thereby ensuring the accuracy of signal transmission. In the embodiment, the driving module is divided into three groups, and each group has four paths. The three groups of driving modules correspond to three ranges of input direct current voltages, which are DC5V-DC60V, DC60V-DC140V and DC140V-DC300V, and have polarity reverse connection protection.

[0087] The relay module has a coil excitation voltage of 24V, and has two normally open and two normally closed contacts. The power consumption is about 0.53W, the coil contact point withstand voltage is 5000V, the withstand voltage is 10000V, and the rated current is 10A. The relay coil 1 and the relay contact 1 constitute a sub-relay module. According to the required output logic type, the corresponding output interface is selected. If the positive logic output is required, the "common" and "normally open" output interfaces are selected, and if the negative logic output is required, the "common" and "normally closed" output interfaces are selected.

[0088] Any one sub-rectifier module outputs a direct current signal and inputs to a unique corresponding sub-driving module, and the output end of the sub-driving module outputs a signal to a unique corresponding sub-relay module. A corresponding set of sub-rectifier modules, sub-driving modules and sub-relay modules constitute a channel.

[0089] The switching value output conversion device of the embodiment is used in the following manner.

[0090] 1. Select the input channel.

[0091] (1) AC voltage input signal.

[0092] Multiply the AC voltage effective value by 0.9 times, which is the rectified DC voltage. Determine the rectified DC voltage in the range of "DC5V~DC60V", "DC60V~DC140V", "DC140V~DC300V", and select the corresponding AC input channel. The 4 channels in the same range can be selected arbitrarily. Connect the "DC output" and "DC input" interfaces of the selected channel, and the corresponding positive and negative polarities must be consistent.

[0093] (2) DC voltage input signal

[0094] According to the range of the input DC voltage in "DC5V~DC60V", "DC60V~DC140V", "DC140V~DC300V", select the corresponding DC input channel. The 4 channels in the same range can be selected arbitrarily. Connect the DC voltage input signal to the "DC input" interface, and the corresponding positive and negative polarities must be consistent.

[0095] 2. Select the output channel.

[0096] According to the required output logic type, select the corresponding output interface. If positive logic output is required, select the "common" and "normally open" output interface. If negative logic output is required, select the "common" and "normally closed" output interface.

[0097] The switch output conversion device of the embodiment realizes simultaneous processing of multiple channels through the configuration of 12 sub-rectification modules, 12 sub-driving modules, and 12 relay output modules. This is a key technical innovation point that solves the single-channel limitation of existing technology, improving the system's adaptability and processing efficiency for multiple signal sources. The switch output conversion device has multi-channel processing capability.

[0098] The switch output conversion device of the present scheme can process AC / DC 5V to AC / DC 300V voltage range, which is significantly wider than existing technology, supporting a wider range of voltage inputs, and has a polarity reverse connection protection function, enhancing the versatility and safety of the application. The switch output conversion device can adapt to a wide voltage range.

[0099] The switch output conversion device of the present scheme has flexible logic output. By using passive switch output signals that can be converted to positive and negative logic, it breaks the limitations of fixed logic output in traditional technology, increasing the diversity and flexibility of control logic, and is suitable for more complex control scenarios.

[0100] The switch quantity output conversion device has good electrical isolation and protection mechanism.

[0101] The switch quantity output conversion device system is highly integrated, which not only reduces the cost and volume, but also is convenient to maintain and expand according to the demand, and embodies the innovation in system design and the adaptability to the future.

[0102] The switch quantity output conversion device uses a rubber socket to realize quick plug-in and plug-out, simplifies the wiring operation, improves the convenience and efficiency of field use, and solves the problem of complicated disconnection operation in the prior art.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A switching output conversion device, characterized by: The total rectifier module, the total drive module, the total relay module and the power module are arranged; The total rectifier module is arranged with multiple groups of rectifier modules, different groups of rectifier modules are used for inputting AC voltages of different voltage ranges, each group of rectifier modules is arranged with multiple sub-rectifier modules, and multiple sub-rectifier modules of one group of rectifier modules input AC voltages of the same voltage range; The total drive module is arranged with multiple groups of drive modules corresponding to the multiple groups of rectifier modules, each group of drive modules is arranged with multiple sub-drive modules, and each sub-drive module is connected with a corresponding sub-rectifier module; The total relay module is arranged with multiple groups of relay modules corresponding to the multiple groups of drive modules, each group of relay modules is arranged with multiple sub-relay modules, and each sub-relay module is connected with a corresponding sub-drive module; Any one sub-rectifier module outputs a DC signal and inputs the DC signal to a unique corresponding sub-drive module, and an output end of the sub-drive module outputs a signal to a unique corresponding sub-relay module; The power module supplies power to the sub-relay modules and the drive modules.

2. The switching output conversion device of claim 1, wherein: The total rectifier module is provided with at least one group of 5V ～ 60V AC voltage input rectifier module, one group of 60V ～ 140V AC voltage input rectifier module, one group of 140V ～ 300V AC voltage input rectifier module Input 5V ～ 60V AC voltage input rectified module output 5V after rectification ～ 60V DC voltage; Input 60V ～ 140V AC input rectified to 60V DC output ～ 140V DC voltage Input 140V ～ Rectified output 140V from a rectification module of a 300V AC voltage input ～ DC voltage of 300V.

3. The switching output conversion device of claim 2, wherein: The total rectifier module is arranged with 3-10 groups of rectifier modules, and each group of rectifier modules is arranged with 3-10 sub-rectifier modules.

4. The switching output conversion device of claim 3, wherein: One group of rectifier modules is arranged with four sub-rectifier modules.

5. The switching output conversion device according to any one of claims 1 to 4, characterized by: An input-output interface module is further arranged; The sub-rectifier modules and the sub-drive modules are connected through the input-output interface module, and the sub-drive modules and the relay modules are connected through the input-output interface module.

6. The switching quantity output conversion device according to any one of claims 1 to 4, characterized in that: Any one sub-relay module and a corresponding sub-drive module are provided with a diode D2, a resistor R1, an optocoupler U1, a diode D1 and a relay U2; One end of the diode D2 is connected with a DC output end of a corresponding sub-rectifier module, the other end of the diode D2 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with a pin 1 of the optocoupler U1, pins 2 and 4 of the optocoupler U1 are grounded, a pin 3 of the optocoupler U1 is connected with one end of the diode D1, the other end of the diode D1 and a pin 1 of the relay U2 are connected with +24V potential; JDQ12 to JDQ17 are relay contacts, JDQ13 and JDQ16 are common terminals of the relay U2, JDQ14 and JDQ15 are normally open terminals, and JDQ12 and JDQ17 are normally closed terminals.

7. The switching output conversion device of claim 6, wherein: The model of the optocoupler U1 can be TLP521 or PC817.

8. The switching output conversion device of claim 6, wherein: The model of the relay U2 is G2R-2-24VDC.

9. The switching output conversion device of claim 8, wherein: The resistance value of the resistor R1 is 100 ohms.

10. The switching output conversion device of claim 9, wherein: The diode D1 is a Schottky diode with a model of SS14, and the diode D1 is a reverse prevention diode with a model of 1N4007.

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