Isolation power supply capable of rapidly plugging and unplugging interface

Abstract

The invention relates to an isolated power supply capable of quickly plugging and unplugging an interface, which comprises a protective shell, a connecting plate is arranged on one side of the protective shell, an access port is formed in the connecting plate, a plug is connected in the access port, an adjusting mechanism is arranged outside the access port, and the adjusting mechanism comprises fixing discs fixedly connected to the two sides of the access port respectively. The center of the fixed disc is rotationally connected with a center shaft, the outer side of the center shaft is fixedly connected with two follow-up discs, three elastic cores are fixedly connected between the two follow-up discs, a transmission part is arranged between the outer side of the access port and the fixed disc, each elastic core comprises a core shell fixedly connected between the two follow-up discs, and a magnetic extension plate is arranged on the outer side of each core shell. A repulsive force baffle is arranged at the outer end of the magnetic extension plate. According to the invention, the effect of switching different force fastening for different scenes is realized, the small force demand of a light plugging scene can be met, the high fastening demand of a vibration scene can be adapted, and the flexibility of scene adaptation is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging power supply, in particular to an isolated power supply with quick plug-in interface. BACKGROUND

[0002] The isolated power supply with quick plug-in interface is widely used in industrial control, medical instruments, handheld terminal devices and other scenarios, and the fastening performance requirements of the power supply interface in these scenarios are significantly different. In the industrial vibration environment, the interface needs to have sufficient fastening force to prevent the plug from loosening and falling off, and to ensure stable power transmission. In the light plug-in scenarios of medical instruments, handheld devices and the like, a smaller fastening force is required to facilitate the quick plug-in of the operator and to avoid damage to the terminals or device interfaces during the plug-in process. Therefore, whether the power supply interface can adapt to the fastening force requirements of different scenarios directly affects the use reliability and convenience of the device.

[0003] The existing isolated power supply with quick plug-in interface adopts a single spring, fixed buckle or magnetic attraction type design for the interface fastening structure. During operation, the plug and the inlet are fastened and connected by a pre-set fixed spring force or attraction force, which can only provide a single fixed fastening force. The core deficiency of this type of structure is that it cannot flexibly switch the fastening force according to the requirements of different application scenarios. If a larger fastening force is set according to the vibration scenario requirements, it will lead to difficult plug-in operation in the light plug-in scenario, which may cause terminal deformation or interface wear. If a smaller fastening force is set according to the light plug-in scenario, it will be difficult to ensure the stability of the connection in the vibration scenario, and the plug may loosen and the power transmission may be interrupted, which cannot meet the use requirements of multiple scenarios. SUMMARY

[0004] The purpose of the present application is to provide an isolated power supply with quick plug-in interface, which aims to solve the problem that the plug-in interface of the existing isolated power supply in the prior art cannot flexibly switch the fastening force according to the requirements of different application scenarios.

[0005] The purpose of the present application is achieved by the following technical solution: an isolated power supply with quick plug-in interface, comprising a protective shell, a connecting plate is arranged on one side of the protective shell, an inlet is arranged in the connecting plate, a plug is connected in the inlet, and an adjusting mechanism is arranged outside the inlet; The adjusting mechanism comprises a fixed disc fixedly connected on both sides of the plurality of inlets, a center shaft is rotatably connected at the center of the fixed disc, two follow-up discs are fixedly connected on the outer side of the center shaft, three elastic cores are fixedly connected between the two follow-up discs, and a transmission member is arranged between the outer side of the inlet and the fixed disc; The elastic core comprises a core shell fixedly connected between the two follow-up discs, the outer side of the core shell is provided with a magnetic extension plate, the outer end of the magnetic extension plate is provided with a repulsion baffle, the outer side of the magnetic extension plate is slidably connected with a magnetic partition plate through magnetic attraction, the inside of the core shell is provided with an inner core, the two ends of the inner core are provided with main force springs, the number of the main force springs in the three elastic cores is different, and the other end of the main force spring is fixedly connected with a butt joint block.

[0006] As a further description of the above technical solution: The transmission member comprises a fixed tube fixedly connected to the inner side of the fixed disc, one end of the fixed tube is slidably connected with a transmission column, the other end of the transmission column is fixedly connected with an arc-shaped pressing piece, the outer side of the arc-shaped pressing piece is slidably connected to the two sides of the access port, the inside of the fixed tube is slidably connected with a sliding plug, a return spring is arranged between the sliding plug and the fixed tube, one end of the sliding plug is fixed with the transmission column, and the other end of the sliding plug is abuttable with the magnetic partition plate or the butt joint block; As a further description of the above technical solution: The inside of the follow-up disc is provided with an arc-shaped through groove, and the magnetic extension plate is fixedly connected to the inside of the arc-shaped through groove, and the magnetic partition plate is slidably connected to the inner side of the arc-shaped through groove of the follow-up disc; As a further description of the above technical solution: The two ends of the central shaft are respectively provided with two belt pulley transmission assemblies, the inside of the connecting plate is rotatably connected with a driving rod, and the driving rod is drivingly connected with the driving wheel in the belt pulley transmission assembly; As a further description of the above technical solution: The fixed disc comprises a disc body, the inside of the disc body is provided with a through hole, the inner side of the disc body is provided with a strong magnetic plate, and the position of the strong magnetic plate corresponds to the position of the outer end of the magnetic extension plate; As a further description of the above technical solution: The magnetism of the strong magnetic plate is opposite to the magnetism of the magnetic force surface of the magnetic extension plate, the two ends of the magnetic partition plate are respectively attracted to the strong magnetic plate and the magnetic extension plate, the magnetism of the repulsion baffle is the same as the magnetism of the outer side of the magnetic partition plate, so that the magnetic partition plate is reset by the magnetism of the repulsion baffle under the action of no external force; As a further description of the above technical solution: The two sides of the plug are provided with pressure grooves, which are matched with the shape of the arc-shaped pressing piece, the front end of the plug is provided with a wedge-shaped head, and the shape is matched with the shape of the inner side of the access port; As a further description of the above technical solution: The inside of the protective shell is provided with a charging and discharging module and a cooling fan, and the charging and discharging module comprises a control unit, a charging unit, a discharging unit, an energy storage unit, a sampling unit and a protection unit; The control unit comprises a dedicated charge-discharge control chip, a logic drive circuit and a signal processing circuit, the logic drive circuit is used for amplifying control instructions, driving power switch actions of the charging unit and the discharging unit, and the signal processing circuit is used for filtering, amplifying and analog-digital converting analog signals fed back by the sampling unit, so as to ensure signal accuracy; The charging unit is electrically connected with the control unit, the input end is connected with the rectification output end of the secondary side of the isolation transformer of the isolated power supply, and the output end is connected with the energy storage unit, which comprises a power switch tube, a drive chip, a constant current and constant voltage adjusting circuit and a trickle charging circuit, the power switch tube adopts a MOSFET device, receives instructions of the control unit through the drive chip, realizes on-off of the charging loop and charging current adjustment, the constant current and constant voltage adjusting circuit realizes fast charging with constant current first and slow charging with constant voltage after the voltage reaches a preset value through feedback adjustment, and finally the residual power of the energy storage unit is supplemented through the trickle charging circuit to avoid overcharging damage; The discharging unit is electrically connected with the control unit and the energy storage unit, and the output end is connected with the load access port of the isolated power supply, which comprises a discharging switch, a voltage stabilizing circuit and a current limiting circuit, the discharging switch is linked with the control unit and is automatically disconnected when the voltage of the energy storage unit is lower than a preset discharging cutoff threshold, so as to prevent overdischarge, the voltage stabilizing circuit adopts an LDO stabilizer or a DC-DC stabilizing structure, so as to ensure that the discharging output voltage is stable in the load demand range, and the current limiting circuit is used for limiting the maximum discharging current, so as to avoid damage of the module caused by load short circuit or overload; The energy storage unit is used for storing electric energy and serving as a backup power supply, and supplies power to the load through the discharging unit when the input of the isolated power supply is powered off, and supplements electric energy through the charging unit when the input is normal; The sampling unit is electrically connected with the control unit, the charging unit, the discharging unit and the energy storage unit, and is used for collecting voltage, current and temperature parameters of the energy storage unit and current parameters of the charging and discharging loop in real time, and feeding back the collected signals to the control unit; The protection unit is linked with the control unit, the charging unit and the discharging unit, and is used for realizing overcharge, overdischarge, overcurrent, overtemperature and short circuit protection according to instructions of the control unit or preset thresholds, and is cooperated with the power plug mechanism to cut off the main charging and discharging loop when the plug action is triggered, so as to prevent arc ablation.

[0007] Compared with the prior art, the application has the following advantages: 1. Drive the belt pulley transmission assembly to operate by the drive rod, the linkage center shaft stably rotates on the fixed disc, the center shaft further drives the follower disc to rotate synchronously, the follower disc drives the elastic core of three different main spring quantities to switch positions, the strong magnetic plate and the magnetic extension plate are adsorbed by the magnetic force to the magnetic partition plate, so that the elastic core is accurately positioned and the core shell is opened, the magnetic partition plate is reset to extrude the butt joint block, drive the fixed tube, sliding plug and transmission column of the transmission member to drive the arc-shaped pressing piece to move, realize the effect of switching different tightness for different scenes, which can meet the small force requirement of light plug-in scene and adapt to the high tightness requirement of vibration scene, and guarantee the flexibility of scene adaptation.

[0008] 2. The drive rod triggers the adjustment mechanism to operate, drives the elastic core and the transmission member to disengage, the adsorption force of the strong magnetic plate to the magnetic partition plate disappears, the repulsive force baffle pushes the magnetic partition plate to reset, drives the butt joint block to retract into the core shell, the sliding plug resets along the fixed tube after losing the elastic force, the transmission column drives the arc-shaped pressing piece to disengage the plug pressing groove, releases the fastening to the plug, the arc-shaped pressing piece and the plug pressing groove are accurately positioned and automatically pressed when inserted, realize the convenience effect of plug-in operation, without additional tool assistance, greatly reduce the difficulty of plug-in operation, avoid deformation of the terminal caused by uneven force during plug-in. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is the main body schematic diagram of an embodiment of an isolated power supply with a quick plug-in interface proposed by the present application; Figure 2 is a structure schematic diagram of a charge and discharge module of an isolated power supply with a quick plug-in interface proposed by the present application; Figure 3 is a structure schematic diagram of an inlet of an isolated power supply with a quick plug-in interface proposed by the present application; Figure 4 is a structure schematic diagram of a plug of an isolated power supply with a quick plug-in interface proposed by the present application; Figure 5 is a structure schematic diagram of an adjustment mechanism of an isolated power supply with a quick plug-in interface proposed by the present application; Figure 6 is a structure schematic diagram of a transmission member of an isolated power supply with a quick plug-in interface proposed by the present application; Figure 7 is an exploded view of an elastic core of an isolated power supply with a quick plug-in interface proposed by the present application; Figure 8 is a structure schematic diagram of a sliding plug of an isolated power supply with a quick plug-in interface proposed by the present application.

[0010] Label explanation: 1, protective shell; 2, connecting plate; 3, connecting port; 4, plug; 5, adjusting mechanism; 51, fixed disc; 511, disc body; 512, through hole; 513, strong magnetic plate; 52, center shaft; 53, belt pulley transmission assembly; 54, drive rod; 55, follow-up disc; 56, elastic core; 561, core shell; 562, magnetic extension plate; 563, repulsion baffle; 564, magnetic partition; 565, inner core; 566, main force spring; 567, butt joint block; 57, transmission part; 571, fixed tube; 572, transmission column; 573, sliding plug; 574, return spring; 58, arc-shaped pressing sheet; 6, charging and discharging module; 7, cooling fan. DETAILED DESCRIPTION

[0011] The content of the application will be described in detail below in combination with the drawings and examples of the specification: As Figures 1 to 8 shown is an embodiment schematic diagram of an isolated power supply with a quick plug-in interface 3 provided by the application, an isolated power supply with a quick plug-in interface 3, comprising a protective shell 1, the protective shell 1 physically protects all internal components, isolates external dust and impact, and guarantees stable operation of the internal mechanism, one side of the protective shell 1 is provided with a connecting plate 2, the connecting plate 2 provides a connecting port and an installation carrier of the adjusting mechanism 5, ensures accurate installation and positioning of each component, the inside of the connecting plate 2 is provided with a connecting port, the connecting port provides a butt joint space for the plug 4, realizes butt joint of the plug 4 and the power supply, the inside of the connecting port is connected with the plug 4, the plug 4 is a connecting piece for electric energy transmission, realizes electric energy conduction between the power supply and the load, the outside of the connecting port is provided with the adjusting mechanism 5, the adjusting mechanism 5 adjusts the fastening degree of the plug 4 and the connecting port, and adapts to different plug-in scene requirements.

[0012] The adjusting mechanism 5 comprises a fixed disc 51 fixedly connected on both sides of the plurality of interfaces, respectively, the fixed disc 51 provides mounting support for the center shaft 52 and the strong magnetic plate 513, ensures the structural stability of the adjusting mechanism 5, the center shaft 52 is rotatably connected in the center of the fixed disc 51, the center shaft 52 transmits rotating power, drives the synchronous operation of the follower disc 55 and the elastic core 56, the center shaft 52 is fixedly connected with two follower discs 55 on the outside, the follower disc 55 bears the elastic core 56, drives the elastic core 56 to realize position switching, at the same time provides mounting space for the magnetic component, three elastic cores 56 are fixedly connected between the two follower discs 55, the elastic core 56 provides different levels of compression spring force, meets the fastening demand of different scenes, the outside of the interface is provided with a transmission member 57 between the fixed disc 51, the transmission member 57 transmits the elastic force of the elastic core 56 to the arc-shaped pressing sheet 58, realizes the compression and unlocking of the plug 4, two belt pulley transmission assemblies 53 are arranged at both ends of the center shaft 52, respectively, the belt pulley transmission assembly 53 transmits the power of the driving rod 54, ensures the stable rotation of the center shaft 52, the driving rod 54 is rotatably connected in the inside of the adapter plate 2, the driving rod 54 is triggered by the operator to trigger the adjusting action, controls the start and stop of the adjusting mechanism 5, and the driving rod 54 is drivingly connected with the driving wheel in the belt pulley transmission assembly 53.

[0013] The elastic core 56 comprises a core shell 561 fixedly connected between the two follower discs 55, the core shell 561 wraps the internal spring, the inner core 565 and other components, provides protection and mounting support, the outside of the core shell 561 is provided with a magnetic extension plate 562, the magnetic extension plate 562 is adsorbed to the magnetic partition plate 564 through magnetic force, cooperates with the strong magnetic plate 513 to realize the positioning of the elastic core 56, the outer end of the magnetic extension plate 562 is provided with a repulsion baffle 563, the repulsion baffle 563 utilizes the same-pole magnetic repulsion to push the magnetic partition plate 564 to automatically reset, and the outside of the magnetic extension plate 562 is adsorbed to the magnetic partition plate 564 through magnetic force in a sliding manner, the magnetic partition plate 564 realizes the transmission on-off control of the elastic core 56 and the transmission member 57, avoids the deviation of the elastic core 56, the inside of the follower disc 55 is provided with an arc-shaped through slot, the arc-shaped through slot provides mounting and sliding track for the magnetic extension plate 562 and the magnetic partition plate 564, guarantees smooth movement of components, and the magnetic extension plate 562 is fixedly connected in the inside of the arc-shaped through slot, and the magnetic partition plate 564 is slidingly connected in the inside of the arc-shaped through slot of the follower disc 55. The inside of the core shell 561 is provided with an inner core 565, the inner core 565 provides mounting and positioning for the main spring 566, ensures the stable output of spring elastic force, the two ends of the inner core 565 are provided with a main spring 566, the main spring 566 provides core compression spring force, realizes different spring levels through quantity difference, and the number of the main spring 566 in the three elastic cores 56 is different, the other end of the main spring 566 is fixedly connected with a butt joint block 567, the butt joint block 567 transmits the elastic force of the main spring 566 to the transmission member 57, realizes effective force conduction.

[0014] The transmission member 57 comprises a fixed tube 571 fixedly connected to the inner side of the fixed disc 51, which provides sliding guide for a sliding plug 573 and a transmission column 572, and ensures accurate movement of components. One end of the fixed tube 571 is slidingly connected to the transmission column 572, which transmits the force of the sliding plug 573 to the arc-shaped pressing plate 58, so as to drive the pressing plate to stretch and retract. The other end of the transmission column 572 is fixedly connected to the arc-shaped pressing plate 58, which is embedded in the pressing groove of the plug 4, so as to realize pressing and fixing and unlocking separation of the plug 4. The outer side of the arc-shaped pressing plate 58 is slidingly connected to the two sides of the access port. The two sides of the plug 4 are provided with pressing grooves, which are matched with the arc-shaped pressing plate 58, so as to ensure accurate pressing and positioning and improve connection stability. The shape of the arc-shaped pressing plate 58 is matched with the shape of the access port. The front end of the plug 4 is provided with a wedge-shaped head, which assists the plug 4 to quickly align with the access port, improves plug-in alignment efficiency, and is matched with the shape of the inner side of the access port. The inside of the fixed tube 571 is slidingly connected to the sliding plug 573, which transmits the force of the abutting block 567 to the transmission column 572, and buffers the elastic impact. The sliding plug 573 and the fixed tube 571 are provided with a return spring 574, so that the sliding plug 573 can automatically rebound under the action of no external force. One end of the sliding plug 573 is fixed to the transmission column 572, and the other end can abut against the magnetic partition plate 564 or the abutting block 567.

[0015] The fixed disc 51 comprises a disc body 511, which constitutes the main structure of the fixed disc 51 and provides a mounting basis for various components. The inside of the disc body 511 is provided with a through hole 512 for the center shaft 52 to pass through, so as to ensure smooth rotation of the center shaft 52. The inner side of the disc body 511 is provided with a strong magnetic plate 513, which attracts the magnetic partition plate 564 through heteropolar magnetic force, so as to realize accurate positioning of the elastic core 56. The position of the strong magnetic plate 513 corresponds to the position of the outer end of the magnetic extension plate 562. The magnetism of the strong magnetic plate 513 is opposite to the magnetism of the magnetic force surface of the magnetic extension plate 562. The two ends of the magnetic partition plate 564 are respectively attracted to the strong magnetic plate 513 and the magnetic extension plate 562. The magnetism of the repulsion baffle 563 is the same as the magnetism of the outer side of the magnetic partition plate 564. Thus, the magnetic partition plate 564 is reset by the magnetism of the repulsion baffle 563 under the action of no external force.

[0016] The inside of the protective shell 1 is provided with a charging and discharging module 6 and a cooling fan 7. The charging and discharging module 6 realizes storage, conversion and stable output of electric energy, and guarantees the reliability of power supply. The cooling fan 7 cools the internal components of the protective shell 1, reduces the working temperature, and avoids the influence of high temperature on the performance of the components. The charging and discharging module 6 comprises a control unit, a charging unit, a discharging unit, an energy storage unit, a sampling unit and a protection unit.

[0017] The control unit coordinates the whole process of charging and discharging, receives feedback signals and outputs control instructions to ensure the collaborative operation of each unit, including a special charging and discharging control chip, a logic drive circuit and a signal processing circuit. The special charging and discharging control chip dominates the charging and discharging logic judgment and instruction generation. The logic drive circuit is used to amplify the control instructions and drive the power switch of the charging unit and the discharging unit. The signal processing circuit is used to filter, amplify and analog-to-digital convert the analog signals fed back by the sampling unit to ensure signal accuracy.

[0018] The charging unit converts the output power of the isolation transformer into a form suitable for the energy storage unit and supplements the power to the energy storage unit. It is electrically connected with the control unit, the input end is connected with the secondary side rectifier output end of the isolation transformer of the isolation power supply, and the output end is connected with the energy storage unit. It includes a power switch tube, a drive chip, a constant current and constant voltage regulation circuit and a trickle charging circuit. The power switch tube uses a MOSFET device, receives the control unit instructions through the drive chip, realizes the on-off of the charging circuit and the adjustment of the charging current, and the drive chip receives the control unit instructions to drive the power switch tube. The constant current and constant voltage regulation circuit adjusts through feedback to first fast charge with constant current and then slow charge with constant voltage when the voltage reaches the preset value, and the trickle charging circuit supplements the remaining power of the energy storage unit to avoid overcharging damage.

[0019] The discharging unit converts the power stored in the energy storage unit into a form suitable for the load and stably supplies power to the load. It is electrically connected with the control unit and the energy storage unit, and the output end is connected with the load inlet of the isolation power supply. It includes a discharge switch, a voltage stabilizing circuit and a current limiting circuit. The discharge switch is linked with the control unit and automatically disconnects when the voltage of the energy storage unit is lower than the preset discharge cutoff threshold to prevent over-discharge. The voltage stabilizing circuit uses an LDO stabilizer or a DC-DC stabilizing structure to ensure that the discharge output voltage is stable within the load demand range. The current limiting circuit is used to limit the maximum discharge current to avoid module damage caused by load short circuit or overload.

[0020] The energy storage unit is used to store power and as a backup power supply. When the input of the isolation power supply is disconnected, it supplies power to the load through the discharging unit. When the input is normal, it supplements the power through the charging unit.

[0021] The sampling unit collects key parameters of the charging and discharging and energy storage unit in real time to provide data support for the control unit. It is electrically connected with the control unit, the charging unit, the discharging unit and the energy storage unit, and is used to collect the voltage, current and temperature parameters of the energy storage unit and the current parameters of the charging and discharging circuit in real time. The collected signals are fed back to the control unit.

[0022] The protection unit guarantees the safety of charging and discharging and plugging process, avoids component damage and safety hazards, and is linked with the control unit, the charging unit and the discharging unit, and is used for realizing overcharge, overdischarge, overcurrent, overtemperature and short circuit protection according to the control unit instruction or the preset threshold value, and simultaneously cooperating with the power plug mechanism to cut off the charging and discharging main circuit when the plugging action is triggered, so as to prevent arc ablation.

[0023] Working principle: The working process of the quick plug-in interface isolation power supply takes the adjustment of the adjustment mechanism 5 to the fastening degree of the plug 4 as the core, and cooperates with the plug-in action to orderly carry out. The operator needs to determine the required fastening degree of the plug 4 according to the actual plug-in scene demand, and then starts the adjustment process through the adjustment mechanism 5. During adjustment, the operator can drive the driving rod 54 rotatingly connected in the connecting plate 2. Since the driving rod 54 is drivingly connected with the driving wheels of the belt wheel transmission assembly 53 at both ends of the center shaft 52, the driving rod rotates to drive the center shaft 52 to rotate synchronously through the belt wheel transmission assembly 53, and the center shaft 52 is rotatingly connected at the center of the fixed disc 51, and the fixed disc 51 is fixedly connected on both sides of the plurality of access ports 3, thereby realizing the stable rotation of the center shaft 52 on the fixed disc 51, and providing power support for the subsequent switching of the elastic core 56.

[0024] When the center shaft 52 rotates, the two follow-up discs 55 fixedly connected outside the center shaft 52 will rotate synchronously. The follow-up disc 55 is internally provided with an arc-shaped through slot, the magnetic extension plate 562 is fixedly connected inside the arc-shaped through slot, and the magnetic extension plate 562 is slidingly connected with the magnetic partition plate 564 outside through magnetic attraction. The magnetic partition plate 564 is slidingly connected inside the arc-shaped through slot of the follow-up disc 55. With the rotation of the follow-up disc 55, the three elastic cores 56 fixedly connected between the two follow-up discs 55 will rotate synchronously, realizing the alignment switching of different elastic cores 56 and the transmission member 57. Since the number of main springs 566 in the three elastic cores 56 is different, different elastic cores correspond to different elastic force output, which can meet the requirement of different fastening degree. When the target elastic core 56 rotates to the position corresponding to the transmission member 57, the operator stops driving the driving rod 54, and the center shaft 52 and the follow-up disc 55 are stationary, and the elastic core 56 completes the switching positioning.

[0025] During the switching process of the elastic core 56, the strong magnetic plate 513 arranged on the inner side of the fixed disc 51 will play a role. The position of the strong magnetic plate 513 corresponds to the position of the outer end of the magnetic extension plate 562, and the magnetism of the strong magnetic plate 513 is opposite to the magnetism of the magnetic force surface of the magnetic extension plate 562. The strong magnetic plate 513 will be attracted to the magnetic partition plate 564 by magnetic force, so that the magnetic partition plate 564 slides along the arc-shaped through slot of the follow-up disc 55, until the two ends of the magnetic partition plate 564 are respectively attracted to the strong magnetic plate 513 and the magnetic extension plate 562, realizing the adsorption of the elastic core 56 and opening the core shell 561. At this time, the repulsion baffle 563 at the outer end of the magnetic extension plate 562 has the same magnetism as the outer side of the magnetic partition plate 564, and under the action of no external force, the follow-up disc 55 continues to rotate, so that the strong magnetic block 513 no longer generates magnetic force on the magnetic partition plate 564, and then the repulsion baffle 563 pushes the magnetic partition plate 564, so that the magnetic partition plate 564 can be automatically reset and press the butt joint block 567, so that the butt joint block 567 retracts into the inside of the core shell 561, so that the magnetic partition plate 564 can cut off the transmission effect of the butt joint block 567 on the transmission member 57, avoiding the deviation of the elastic core 56 in the subsequent operation.

[0026] After the elastic core 56 is positioned, the main force spring 566 in the elastic core 56 will exert force on the transmission member 57 through the butt joint block 567. The fixed tube 571 in the transmission member 57 is fixedly connected to the inner side of the fixed disc 51. One end of the sliding plug 573 slidingly connected in the fixed tube 571 abuts against the butt joint block 567. Under the elastic force of the main force spring 566, the sliding plug 573 will slide in the fixed tube 571, and then push the transmission column 572 fixedly connected to the other end of the sliding plug 573 to move synchronously. The transmission column 572 is slidingly connected to one end of the fixed tube 571, and the arc-shaped pressing piece 58 fixedly connected to the other end of the transmission column 572 will move towards the access port 3. Since the arc-shaped pressing piece 58 is slidingly connected to the two sides of the access port 3, and the two sides of the plug 4 are provided with pressing grooves matched with the shape of the arc-shaped pressing piece 58, the arc-shaped pressing piece 58 will be precisely embedded in the pressing grooves of the plug 4, and the elastic force of the main force spring 566 will realize the pressing and fixing of the plug 4, and complete the adjustment of the fastening degree.

[0027] When the plug 4 needs to be inserted, the operator aligns the wedge-shaped head at the front end of the plug 4 with the shape inside the access port 3, and slowly pushes it into the access port 3. During the pushing process, the pressing groove of the plug 4 will be accurately aligned with the arc-shaped pressing piece 58. The arc-shaped pressing piece 58 is kept under the driving force of the transmission member 57 to ensure the stable fixation of the plug 4 after insertion, and it will not loosen due to vibration and other factors. If the elastic core 56 with fewer main springs 566 is selected, the fastening force is smaller, and the operator can easily complete the insertion of the plug 4, which is suitable for light insertion and extraction scenes such as handheld devices and medical instruments. When the plug 4 needs to be pulled out, the operator can drive the drive rod 54 again to rotate the center shaft 52 and the follower disc 55 through the belt pulley transmission assembly 53, so that the currently working elastic core 56 is out of alignment with the transmission member 57. At this time, the attractive force of the strong magnetic plate 513 to the magnetic partition plate 564 disappears, the repulsive force baffle 563 resets the magnetic partition plate 564 by repulsive force, the sliding plug 573 loses the elastic force of the abutment block 567, and under the reverse force of the arc-shaped pressing piece 58, it resets along the fixed tube 571. The transmission column 572 drives the arc-shaped pressing piece 58 to disengage the pressing groove of the plug 4, releasing the pressing and fixing of the plug 4. The operator can easily pull out the plug 4.

[0028] When adapting to industrial equipment, vibration scenes and other scenes with higher fastening force requirements, the operator can repeat the above adjustment process to switch the elastic core 56 with more main springs 566 to the position aligned with the transmission member 57 by rotating the drive rod 54 and the follower disc 55. Through the superimposed elastic force of more main springs 566, the arc-shaped pressing piece 58 exerts greater pressing force on the plug 4, improving the fastening degree of the plug 4 and preventing it from loosening in a vibrating environment. When the subsequent scene does not require high fastening force, the elastic core 56 with fewer main springs 566 can be switched again to reduce the fastening force for easy insertion and extraction.

[0029] In the entire workflow, the adjustment mechanism 5 realizes flexible adjustment of the fastening degree through the cooperation of mechanical transmission and magnetic force linkage, and the protective shell 1 provides protection for the entire adjustment mechanism 5 and the plug 4. The charging and discharging module 6 cooperates with the protection unit to cut off the main charging and discharging circuit when the plug is inserted or pulled out, and adjusts the fastening of the adjustment mechanism 5 to ensure the safety and order of the plug insertion and extraction process. The cooling fan 7 operates synchronously to ensure stable heat dissipation of the entire power supply, providing environmental support for the continuous work of the adjustment mechanism 5 and the charging and discharging module 6.

Claims

1. An isolated power supply for a quick plug-in interface, comprising a protective casing (1), characterized in that: The protective shell (1) is provided with a connecting plate (2) on one side, the inside of the connecting plate (2) is provided with a connecting port (3), the inside of the connecting port (3) is connected with a plug (4), the outside of the connecting port (3) is provided with an adjusting mechanism (5); The adjusting mechanism (5) comprises fixedly connected fixing discs (51) on both sides of a plurality of connecting ports (3) respectively, a central shaft (52) is rotatably connected in the center of the fixing disc (51), two follow-up discs (55) are fixedly connected on the outer side of the central shaft (52), three elastic cores (56) are fixedly connected between the two follow-up discs (55), and a transmission part (57) is arranged between the outer side of the connecting port (3) and the fixing disc (51). The elastic core (56) comprises a core shell (561) fixedly connected between the two follow-up discs (55), a magnetic extension plate (562) is arranged on the outer side of the core shell (561), repulsion baffles (563) are arranged at the outer ends of the magnetic extension plate (562), magnetic partition plates (564) are slidably connected to the outer side of the magnetic extension plate (562) by magnetic force, an inner core (565) is arranged in the core shell (561), main force springs (566) are arranged at both ends of the inner core (565), the number of the main force springs (566) in the three elastic cores (56) is different, and the other end of the main force spring (566) is fixedly connected with a butt joint block (567).

2. The isolated power supply with a quick plug-in interface according to claim 1, characterized in that: The transmission part (57) comprises a fixed tube (571) fixedly connected to the inner side of the fixing disc (51), a transmission column (572) is slidably connected to one end of the fixed tube (571), the other end of the transmission column (572) is fixedly connected with an arc-shaped pressing piece (58), the outer side of the arc-shaped pressing piece (58) is slidably connected to both sides of the connecting port (3), a sliding plug (573) is slidably connected in the fixed tube (571), a return spring (574) is arranged between the sliding plug (573) and the fixed tube (571), one end of the sliding plug (573) is fixed with the transmission column (572), and the other end can abut against the magnetic partition plate (564) or the butt joint block (567).

3. The isolated power supply with a quick plug-in interface according to claim 1, characterized in that: The inside of the follow-up disc (55) is provided with an arc-shaped through groove, and the magnetic extension plate (562) is fixedly connected in the arc-shaped through groove, and the magnetic partition plate (564) is slidably connected to the inner side of the arc-shaped through groove of the follow-up disc (55).

4. The isolated power supply with a quick plug-in interface according to claim 1, characterized in that: Both ends of the central shaft (52) are respectively provided with two belt pulley transmission assemblies (53), a driving rod (54) is rotatably connected in the inside of the connecting plate (2), and the driving rod (54) is drivingly connected with a driving pulley in the belt pulley transmission assembly (53).

5. The isolated power supply with a quick plug-in interface according to claim 1, characterized in that: The fixing disc (51) comprises a disc body (511), a through hole (512) is formed in the inside of the disc body (511), a strong magnetic plate (513) is arranged on the inner side of the disc body (511), and the position of the strong magnetic plate (513) corresponds to the position of the outer end of the magnetic extension plate (562).

6. A quick plug interface isolated power supply as claimed in claim 5, wherein: The magnetism of the strong magnetic plate (513) is opposite to that of the magnetic force surface of the magnetic extension plate (562), and the two ends of the magnetic partition plate (564) are respectively attracted to the strong magnetic plate (513) and the magnetic extension plate (562), the magnetism of the repulsion baffle (563) is the same as the outer magnetism of the magnetic partition plate (564), so that the magnetic partition plate (564) is reset by the magnetism of the repulsion baffle (563) under the action of no external force.

7. The isolating power supply with a quick plug-in interface according to claim 5, characterized in that: The plug (4) is provided with a pressure groove on both sides, which is matched with the shape of the arc-shaped pressing piece (58), and the front end of the plug (4) is provided with a wedge-shaped head which is matched with the shape of the inner side of the inlet (3).

8. The isolated power supply with a quick plug-in interface according to claim 1, characterized in that: The inside of the protective shell (1) is provided with a charging and discharging module (6) and a cooling fan (7), the charging and discharging module (6) comprises: a control unit, a charging unit, a discharging unit, an energy storage unit, a sampling unit and a protection unit; The control unit comprises a special charging and discharging control chip, a logic drive circuit and a signal processing circuit, the logic drive circuit is used for amplifying control instructions, driving the power switch of the charging unit and the discharging unit to act, and the signal processing circuit is used for filtering, amplifying and analog-digital converting the analog signals fed back by the sampling unit, so as to ensure the signal accuracy; The charging unit is electrically connected with the control unit, the input end is connected with the rectifier output end of the secondary side of the isolation transformer of the isolation power supply, and the output end is connected with the energy storage unit, and the charging unit comprises a power switch tube, a drive chip, a constant current and constant voltage adjusting circuit and a trickle charging circuit, the power switch tube adopts a MOSFET device, receives the instructions of the control unit through the drive chip, realizes the on-off of the charging circuit and the adjustment of the charging current, the constant current and constant voltage adjusting circuit is adjusted through feedback, so that the charging process is first fast-charged at a constant current, and then switched to slow-charging at a constant voltage when the voltage reaches the preset value, finally, the residual power of the energy storage unit is supplemented through the trickle charging circuit to avoid overcharging damage; The discharging unit is electrically connected with the control unit and the energy storage unit, and the output end is connected with the load inlet (3) of the isolation power supply, and the discharging unit comprises a discharging switch, a voltage stabilizing circuit and a current limiting circuit, the discharging switch is linked with the control unit, and is automatically disconnected when the voltage of the energy storage unit is lower than the preset discharging cutoff threshold, so as to prevent over-discharge, the voltage stabilizing circuit adopts an LDO stabilizer or a DC-DC stabilizing structure, so as to ensure that the discharging output voltage is stable in the load demand range, and the current limiting circuit is used for limiting the maximum discharging current, so as to avoid damage of the module caused by load short circuit or overload; The energy storage unit is used for storing electric energy and serving as a backup power supply, and supplies power to the load through the discharging unit when the input of the isolation power supply is powered off, and supplements electric energy through the charging unit when the input is normal; The sampling unit is electrically connected with the control unit, the charging unit, the discharging unit and the energy storage unit, and is used for collecting the voltage, current and temperature parameters of the energy storage unit and the current parameters of the charging and discharging circuit in real time, and feeding back the collected signals to the control unit; The protection unit is linked with the control unit, the charging unit and the discharging unit, is used for realizing overcharge, overdischarge, overcurrent, overtemperature and short circuit protection according to the instructions of the control unit or the preset threshold, and is cooperated with the power plug mechanism to cut off the main charging and discharging circuit when the plug action is triggered, so as to prevent arc ablation.

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