Marine potentiostat control cabinet

Abstract

The utility model provides a marine potentiostat control cabinet, which comprises a cabinet body provided with an accommodating space; the cabinet door is rotatably connected with the cabinet body, and the cabinet door covers the accommodating space; the control unit layer is arranged in the accommodating space and comprises a first transformer, a driving piece and a main control piece; the element layer is in circuit connection with the control unit layer, the element layer is arranged on the side, away from the cabinet door, of the control unit layer, and the element layer comprises a rectification module and a high-frequency conversion module; the heat dissipation layer is connected with the element layer, and the heat dissipation layer is arranged on the side, away from the control unit layer, of the element layer; the access end is arranged in the accommodating space and is used for accessing marine alternating current; wherein the control unit layer is used for controlling elements in the element layer to work, the element layer is used for converting marine alternating current into low-voltage direct current, and the heat dissipation layer is used for heat dissipation of the element layer. According to the utility model, the problem that similar marine potentiostat control cabinets in the prior art cannot stably and efficiently complete electric energy conversion and realize accurate control of the potential of a ship body is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of constant potentiostats, in particular to a control cabinet for a marine constant potentiostat. Background Art

[0002] A potentiostat is essentially a negative feedback amplifier-output system, forming a closed-loop regulation loop with the protected object, such as a ship. The potential at the energized point is measured using a reference electrode, and this signal is used as a sampling signal for comparison with the control signal to control and adjust the polarization current output, maintaining the energized point potential at the set control potential. The compact arrangement of components within conventional potentiostats also makes the key control elements susceptible to electromagnetic interference, resulting in unstable operation. Utility Model Content

[0003] The utility model solves the problem that similar marine constant potential instrument control cabinets in the prior art cannot stably and efficiently complete electric energy conversion and precise control.

[0004] To address the above-mentioned issues, the present invention provides a marine potentiostat control cabinet, comprising a cabinet body, a cabinet door, a control unit layer, a component layer, a heat dissipation layer, and an access port. The cabinet body is provided with a storage space, and the cabinet door is rotatably connected to the cabinet body, the cabinet door covering the storage space. The control unit layer is disposed within the storage space and comprises a first transformer, a driver, and a main control unit. The component layer is circuit-connected to the control unit layer and is disposed on a side of the control unit layer away from the cabinet door. The component layer comprises a rectifier module and a high-frequency conversion module. The heat dissipation layer is connected to the component layer and is disposed on a side of the component layer away from the control unit layer. The access port is disposed within the storage space and is used to receive marine AC power. The control unit layer is used to control the operation of components within the component layer, the component layer is used to convert marine AC power into low-voltage DC power, and the heat dissipation layer is used to dissipate heat from the component layer.

[0005] Compared to existing technologies, this technical solution achieves the following technical effects: the cabinet body holds the internal components of the potentiostat, the cabinet door protects the internal components, preventing foreign matter or liquids from entering and damaging the components, and the control unit layer suspends the main control components, separating them from the main working circuit components (i.e., the component layer). This reduces the impact of electromagnetic interference generated by the component layer on the control components, enabling stable control of the control components and stable operation of the potentiostat. The first transformer is used to convert shipboard AC power into low-voltage AC power to power the drive components and main control unit. The main control unit is primarily responsible for controlling, dispatching, and managing external devices and sensors within the circuit, as well as monitoring and processing data and information flows within the device. The drive components cooperate with the main control unit to drive the high-frequency conversion module within the component layer.

[0006] Furthermore, the rectifier module includes a first filter, a rectifier bridge, and a second transformer. The first filter is connected to the access end circuit, the rectifier bridge is connected to the first filter circuit, and the second transformer is connected to the first filter circuit.

[0007] Compared with the existing technology, the technical effect achieved by this technical solution is as follows: after the marine AC power is connected to the access end, it is filtered for the first time through the first filter. After filtering, part of the electric energy enters the rectifier bridge, and is converted into high-voltage DC after rectification by the rectifier bridge. The other part of the electric energy enters the second transformer and is converted into 220V AC for powering other components.

[0008] Furthermore, the high-frequency conversion module includes an insulated gate bipolar transistor (IGBT) connected to the main control circuit and the rectifier bridge circuit, and a third transformer connected to the IGBT circuit.

[0009] Compared with the existing technology, the technical effect achieved by this technical solution is: through the main control unit, the insulated gate bipolar transistor, i.e. IGBT, is controlled to perform high-frequency opening and closing, thereby converting high-voltage direct current into ultra-high-frequency alternating current high voltage, and then converting it into ultra-high-frequency low-voltage alternating current through the third transformer.

[0010] Furthermore, the high-frequency conversion module further includes a protection element, which is disposed adjacent to the insulated gate bipolar transistor.

[0011] Compared with the existing technology, the technical effect achieved by this technical solution is that it can better absorb current transient impact when the insulated gate bipolar transistor is turned off at high frequency, thereby protecting the insulated gate bipolar transistor.

[0012] Furthermore, the component layer also includes a secondary rectifier module, which is circuit-connected to the high-frequency conversion module.

[0013] Compared with the existing technology, the technical effect achieved by this technical solution is: the ultra-high frequency low-voltage electricity is rectified again and converted into direct current low-voltage electricity.

[0014] Furthermore, the marine potentiostat control cabinet provided by the present application further includes a reactor, which is connected to the third transformer circuit.

[0015] Compared with the existing technology, the technical effect achieved by this technical solution is: forming LC filtering and reducing output harmonics.

[0016] Furthermore, the marine potentiostat control cabinet provided in this application also includes a fan control module, an air inlet, and an air outlet. The fan control module is disposed on the component layer and is connected to the second transformer circuit. The air inlet is disposed on a side wall of the cabinet body, and the air outlet is disposed opposite the air inlet. Both the air inlet and the air outlet are connected to the fan control module circuit.

[0017] Compared with the existing technology, the technical effect achieved by this technical solution is: part of the circuit through the second transformer is used to power the fan control module, and the fan control module controls the operation of the air inlet and outlet parts. Through the cooperation of the air inlet and outlet parts, the external air is accelerated to flow in and out, so as to achieve the purpose of accelerating heat dissipation.

[0018] Furthermore, the marine potentiostat control cabinet provided by the present application also includes a waterproof component. The waterproof component is provided on the cabinet body and covers the air inlet and outlet components.

[0019] Compared with the existing technology, the technical effect achieved by this technical solution is: considering that the main application scenarios of this ship-mounted constant potentiostat are mostly humid outdoor environments, the waterproof parts are used to protect the air inlet and outlet parts to prevent rain or seawater from entering and damaging the fan or the circuit inside the constant potentiostat.

[0020] Furthermore, a partition is provided in the accommodating space, which separates the control unit layer, the component layer and the heat dissipation layer on the side close to the top of the cabinet body, and separates the access end on the side close to the bottom of the cabinet body.

[0021] Compared with the existing technology, the technical effect achieved by this technical solution is: separating the working components from the circuit, making it convenient for circuit plugging and arrangement, and also convenient for inspection and maintenance.

[0022] Furthermore, the marine potentiostat control cabinet provided by the present application also includes a touch screen. The touch screen is arranged on the cabinet door and is connected to the main control circuit.

[0023] Compared with the existing technology, the technical effect achieved by this technical solution is: it is convenient for users to obtain the status of the marine potentiostat and related current parameters in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 An overall diagram of the marine potentiostat control cabinet provided for this application;

[0025] Figure 2 This is the overall diagram of the component layer;

[0026] Figure 3 This is the overall picture of the heat dissipation layer.

[0027] Description of reference numerals:

[0028] 1-cabinet body; 11-accommodation space; 12-waterproof parts; 13-partition parts; 2-cabinet door; 3-control unit layer; 31-first transformer; 32-driving parts; 33-main control parts; 4-component layer; 41-rectifier module; 410-first filter; 411-rectifier bridge; 412-second transformer; 42-high-frequency conversion module; 420-insulated gate bipolar transistor; 421-third transformer; 422-protective parts; 43-secondary rectifier module; 44-fan control module; 441-air inlet part; 442-air outlet part; 5-heat dissipation layer; 50-reactor; 6-access end; 7-touch screen. DETAILED DESCRIPTION

[0029] The utility model aims to provide a marine constant potential instrument control cabinet, which is used to achieve the effect that main control components are not subject to electromagnetic interference and work stably.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] like Figure 1 、 Figure 2 and Figure 3 As shown, the present invention provides a marine potentiostat control cabinet, comprising a cabinet body 1, a cabinet door 2, a control unit layer 3, a component layer 4, a heat dissipation layer 5, and an access terminal 6. The cabinet body 1 is provided with a storage space 11, and the cabinet door 2 is rotatably connected to the cabinet body 1, and the cabinet door 2 covers the storage space 11; the control unit layer 3 is disposed in the storage space 11, and comprises a first transformer 31, a driving member 32, and a main control 33; the component layer 4 is circuit-connected to the control unit layer 3, and is disposed on the side of the control unit layer 3 away from the cabinet door 2. The component layer 4 comprises a rectifier module 41 and a high-frequency conversion module 42; the heat dissipation layer 5 is connected to the component layer 4, and is disposed on the side of the component layer 4 away from the control unit layer 3; the access terminal 6 is disposed in the storage space 11, and is used to receive marine alternating current; wherein, the control unit layer 3 is used to control the operation of the components in the component layer 4, the component layer 4 is used to convert the marine alternating current into low-voltage direct current, and the heat dissipation layer 5 is used to dissipate heat from the component layer 4.

[0032] Specifically, the heat dissipation layer 5 is a heat dissipation aluminum profile.

[0033] The cabinet body 1 holds the internal components of the potentiostat, while the cabinet door 2 protects these components, preventing foreign matter or liquids from entering and damaging them. The control unit layer 3 suspends the main control components and is layered with the main working circuit components, namely the component layer 4. This reduces the impact of electromagnetic interference generated by the operation of the component layer 4 on the control components, ensuring stable control of the control components and the stable operation of the potentiostat. The first transformer 31 is used to convert the ship's AC power into low-voltage AC power that powers the driver 32 and main control unit 33. The main control unit 33 is primarily responsible for controlling, dispatching, and managing external devices and sensors within the circuit, as well as monitoring and processing data and information flows within the device. The driver 32 cooperates with the main control unit 33 to drive the high-frequency conversion module 42 within the component layer 4.

[0034] like Figure 2 As shown, the rectifier module 41 includes a first filter 410, a rectifier bridge 411, and a second transformer 412. The first filter 410 is connected to the access terminal 6, the rectifier bridge 411 is connected to the first filter 410, and the second transformer 412 is connected to the first filter 410.

[0035] After receiving the marine AC power from the access terminal 6, it is filtered for the first time by the first filter 410. After filtering, part of the electric energy enters the rectifier bridge 411, and is rectified by the rectifier bridge 411 and converted into high-voltage DC power. The other part of the electric energy enters the second transformer 412 and is converted into 220V AC power for powering other components.

[0036] The high-frequency conversion module 42 includes an insulated gate bipolar transistor 420 and a third transformer 421. The insulated gate bipolar transistor 420 is connected to the main control 33 and the rectifier bridge 411; the third transformer 421 is connected to the insulated gate bipolar transistor 420.

[0037] The main control 33 controls the insulated gate bipolar transistor 420 to open and close at high frequency, converting the high-voltage direct current into high-frequency square wave high-voltage alternating current, which is then converted into high-frequency square wave low-voltage alternating current through the third transformer 421.

[0038] The high-frequency conversion module 42 further includes a protection element 422 . The protection element 422 is disposed adjacent to the insulated gate bipolar transistor 420 .

[0039] The protection element 422 can better absorb current transient impact when the IGBT 420 is turned off at high frequency, thereby protecting the IGBT 420 .

[0040] The component layer 4 further includes a secondary rectifier module 43 , which is circuit-connected to the high-frequency conversion module 42 .

[0041] Specifically, the secondary rectifier module 43 is a rectifier module composed of multiple common cathode rectifier blocks connected in parallel, which has a larger current margin and a good heat dissipation effect.

[0042] The secondary rectifier module 43 rectifies the ultra-high frequency low voltage electricity again and converts it into direct current low voltage electricity.

[0043] Continue to refer to Figure 2 The marine potentiostat control cabinet provided by the present application further includes a reactor 50. The reactor 50 is connected to the third transformer 421 in a circuit.

[0044] In this embodiment, an output capacitor plate is also connected to the circuit of the reactor 50 .

[0045] Form an LC filter to reduce output harmonics.

[0046] like Figure 3 As shown, the marine potentiostat control cabinet provided in this application also includes a fan control module 44, an air inlet 441, and an air outlet 442. The fan control module 44 is disposed on the component layer 4 and is electrically connected to the second transformer 412. The air inlet 441 is disposed on a side wall of the cabinet body 1, and the air outlet 442 is disposed opposite the air inlet 441. Both the air inlet 441 and the air outlet 442 are electrically connected to the fan control module 44.

[0047] The fan control module 44 is powered by part of the circuit of the second transformer 412, and the fan control module 44 controls the operation of the air inlet member 441 and the air outlet member 442. Through the cooperation of the air inlet member 441 and the air outlet member 442, the external air is accelerated to flow in and out, thereby achieving the purpose of accelerating heat dissipation.

[0048] The marine potentiostat control cabinet provided in the present application further includes a waterproof member 12. The waterproof member 12 is provided on the cabinet body 1, and covers the air inlet member 441 and the air outlet member 442.

[0049] Specifically, when the waterproof member 12 is installed on the cabinet body 1, the air inlet member 441 takes air into the instrument from the direction close to the ground of the potentiostat, and the air outlet member 442 blows air out from the direction close to the ground.

[0050] Considering that the main application scenarios of this ship's constant potential instrument control cabinet are mostly humid outdoor environments, and mainly at sea with high temperature, high humidity and high salt, the waterproof part 12 is used to protect the air inlet part 441 and the air outlet part 442 to prevent rain or seawater from entering and damaging the fan or the circuit inside the constant potential instrument.

[0051] A partition 13 is further provided in the accommodating space 11 , which separates the control unit layer 3 , the component layer 4 and the heat dissipation layer 5 on the top side of the cabinet body 1 , and separates the access end 6 on the bottom side of the cabinet body 1 .

[0052] The partition 13 separates the working components from the circuit, making it easier to connect and arrange the circuits, as well as to facilitate inspection and maintenance.

[0053] The marine potentiostat control cabinet provided by the present application further includes a touch screen 7. The touch screen 7 is provided on the cabinet door 2, and the touch screen 7 is connected to the main control 33 circuit.

[0054] Specifically, the touch screen 7 and the main control 33 are connected via an RS485 circuit.

[0055] The touch screen 7 allows users to obtain the status of the marine potentiostat control cabinet and related current parameters in real time.

[0056] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A marine potentiostat control cabinet, characterized in that: include: The cabinet body is provided with a storage space; a cabinet door rotatably connected to the cabinet body, the cabinet door covering the accommodating space; A control unit layer is provided in the accommodation space and includes a first transformer, a driving component and a main control component; A component layer, connected to the control unit layer by a circuit, the component layer being arranged on a side of the control unit layer away from the cabinet door, the component layer including a rectifier module and a high-frequency conversion module; a heat dissipation layer connected to the component layer, the heat dissipation layer being arranged on a side of the component layer away from the control unit layer; An access terminal is provided in the accommodation space and is used to access marine AC power; The control unit layer is used to control the operation of the components in the component layer, the component layer is used to convert the marine alternating current into low-voltage direct current, and the heat dissipation layer is used to dissipate heat from the component layer.

2. The marine potentiostat control cabinet according to claim 1, characterized in that: The rectifier module includes: a first filter connected to the access end circuit; a rectifier bridge connected to the first filter circuit; The second transformer is connected to the first filter circuit.

3. The marine potentiostat control cabinet according to claim 2, characterized in that: The high frequency conversion module includes: an insulated gate bipolar transistor, connected to the main control circuit and the rectifier bridge circuit; A third transformer is connected to the insulated gate bipolar transistor circuit.

4. The marine potentiostat control cabinet according to claim 3, characterized in that: The high-frequency conversion module further includes a protection element, which is disposed adjacent to the insulated gate bipolar transistor.

5. The marine potentiostat control cabinet according to claim 4, characterized in that: The component layer further includes a secondary rectifier module, which is circuit-connected to the high-frequency conversion module.

6. The marine potentiostat control cabinet according to claim 5, characterized in that: The system further includes a reactor connected to the third transformer circuit.

7. The marine potentiostat control cabinet according to any one of claims 2 to 6, characterized in that: Also includes: a fan control module, disposed on the component layer, the fan control module being connected to the second transformer circuit; An air inlet member, the air inlet member being arranged on a side wall of the cabinet body; An air outlet member, the air outlet member being arranged opposite to the air inlet member; Wherein, the air inlet component and the air outlet component are both connected to the fan control module circuit.

8. The marine potentiostat control cabinet according to claim 7, characterized in that: It also includes a waterproof component, which is arranged on the cabinet body, and the waterproof component covers the air inlet component and the air outlet component.

9. The marine potentiostat control cabinet according to claim 8, characterized in that: A partition is further provided in the accommodating space, which separates the control unit layer, the component layer and the heat dissipation layer on the side close to the top of the cabinet body, and separates the access end on the side close to the bottom of the cabinet body.

10. The marine potentiostat control cabinet according to claim 9, characterized in that: It also includes a touch screen, which is arranged on the cabinet door and is connected to the main control circuit.

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