CN117335226B

CN117335226B - PDU power supply equipment with protect function

Info

Publication number: CN117335226B
Application number: CN202311513735.XA
Authority: CN
Inventors: 乔兴波; 陈孔亮
Original assignee: Shenzhen Sinway South Technology Co ltd
Current assignee: Shenzhen Sinway South Technology Co ltd
Priority date: 2023-11-14
Filing date: 2023-11-14
Publication date: 2024-03-19
Anticipated expiration: 2043-11-14
Also published as: CN117335226A

Abstract

The invention relates to the field of PDU power supplies, in particular to PDU power supply equipment with a protection function, which comprises a PDU power socket, a support lug, a socket hole, a protective shell, an inserting device and a power-off device; the invention can solve the following problems of the prior PDU control box in the actual use process: because the risk of electric leakage and electric shock is easily caused by improper operation of operators, the PDU control box cannot immediately close a circuit, so that potential safety hazards exist; the risk of electric shock is easily increased in the process of plugging and unplugging the plug by an operator, and the safety of the operator during work cannot be ensured; according to the plug, the pins can be clamped when the plug is electrically connected, so that the plug is prevented from loosening and falling off easily, and the plug is powered off firstly when the plug is pulled out, so that electric shock and electric leakage are not needed to be worried about, the safety is improved, and the potential safety hazard is reduced; the invention can lead the positioning electrode block to be powered off immediately when in electric leakage and electric shock, thereby reducing loss and ensuring the safety of operators.

Description

PDU power supply equipment with protect function

Technical Field

The invention relates to the field of PDU power supplies, in particular to PDU power supply equipment with a protection function.

Background

The PDU power distribution unit refers to a power distribution socket for a cabinet, is mainly used for providing power distribution for cabinet-mounted electrical equipment, has various series specifications of different functions, mounting modes and different plug-in combinations, and can provide a proper rack-mounted power distribution solution for different power supply environments.

Compared with the common power strip, the PDU power distribution unit has the advantages of more strict quality and standard, long safe and fault-free working time, more excellent various electric leakage and overload protection, frequent plugging and unplugging actions, difficult damage, small heat rise and the like, and fundamentally eliminates the potential safety hazards of frequent power failure, burning, fire and the like caused by poor contact and small load of the common power strip; in the actual use process, the PDU power supply distribution unit may cause hidden dangers such as electric leakage and personnel electric shock due to improper operation of operators, so that the PDU power supply distribution unit is required to have a certain protection function.

However, when ordinary PDU power is used daily, there are some problems usually, along with the development of science and technology, a great deal of optimization is also carried out to the PDU power to the technical staff in relevant field, in order to carry out more accurate contrast, chinese patent publication No. CN219832448U discloses a PDU control box with uncapping protection function, including control box and protection component, the control box includes box body and top cap, box body inner wall bottom surface is fixed to be equipped with electric connector, the top cap passes through the screw with the box body sealed, protection component locates box body inner space, protection component includes the base, the base passes through the fix with screw and locates electric connector top surface, the base is close to the fixed torsion spring box that is equipped with in top surface department, torsion spring box top surface one side is equipped with the shell fragment, shell fragment and the inside torsion spring fixed connection of torsion spring box, torsion spring box top surface opposite side is equipped with the electrically conductive seat, the shell fragment receives external force and can rotate along the torsional spring center pin, and with electrically conductive seat electric connection.

When the PDU control box is used, the PDU control box is connected to an external power supply, when the PDU control box needs to be opened, the power is firstly cut off, then a screw outside the control box is removed, after the PDU control box is waited for five minutes, the PDU control box is opened, after the PDU control box is opened, the top cover is opened, the spring piece releases the pressure of the top cover, the spring piece is sprung off under the action of the restoring force of the torsion spring, the spring piece leaves the conductive seat, at the moment, the protection component is opened, namely the control box is opened, the power is further disconnected, and the damage of the control switch or the electric shock danger caused by the fact that an operator does not have the power cut off after the PDU control box is opened is prevented; when the top cover is closed, the elastic sheet contacts the conductive seat under the action of the torsion spring under the pressure of the top cover, at the moment, the passage of the assembly, namely the passage in the control box, is protected, and finally, the top cover is sealed with the control box through the screw.

However, the PDU control box has some disadvantages in the actual use process:

1. although the PDU control box can control the closing and opening of the circuit, the PDU power supply cannot be protected in real time, when an operator needs to overhaul or plug the PDU power supply into the circuit, the PDU power supply is not powered off, the risk of electric leakage and electric shock easily occurs due to improper operation of the operator, the PDU control box cannot close the circuit in real time, and therefore potential safety hazards still exist, and the effects of instant power failure and protection cannot be achieved.

2. The PDU power socket needs to be connected with the plug in the use process, the PDU power socket cannot be powered off through the PDU control box in the plug inserting and extracting process, and an operator usually exposes the hands of the operator in the plug inserting and extracting process, so that the risk of electric shock of the hands is easily increased, and the safety of the operator in working cannot be ensured; in addition, when the operating personnel gets an electric shock, the PDU control box can not be powered off at the first time, and further the personal safety of the operating personnel can not be guaranteed.

Therefore, under the above stated viewpoints, there is room for improvement in the protection function of the existing PDU power supply.

Disclosure of Invention

In order to solve the problems, the invention provides PDU power equipment with a protection function, which comprises a PDU power socket, wherein two lugs are symmetrically arranged on the outer wall of the PDU power socket in the length direction, a plurality of groups of socket holes are formed in the upper end of the PDU power socket at equal intervals along the length direction, each socket hole comprises a fire wire hole, a zero wire hole and a ground wire hole, a plurality of protective shells corresponding to the socket holes are arranged at the upper end of the PDU power socket, the protective shells are arranged outside the socket holes, an electric plugging device and an electric breaking device are arranged inside the PDU power socket, the electric plugging device comprises a fixed electrode block, the bottom wall of the socket hole is provided with the fixed electrode block, and the electric breaking device comprises a wire arranged at the lower end of the fixed electrode block.

The power plug device further comprises a top contact rod, the upper end of the PDU power socket is provided with a plurality of top contact rods positioned in the middle of the live wire hole and the zero wire hole of each group of socket holes in a penetrating mode, a limiting sliding groove communicated with the live wire hole and the zero wire hole is formed in the PDU power socket, the lower end of the top contact rod is provided with an insulating connecting plate which is in sliding butt joint in the limiting sliding groove, two shrinkage spring rods are symmetrically arranged between the upper end of the insulating connecting plate and the inner top wall of the limiting sliding groove along the top contact rod, two sides of the length direction of the insulating connecting plate are respectively provided with a linkage electrode block which is in sliding butt joint in the live wire hole and the zero wire hole, a clamping unit is arranged between the linkage electrode block and the inner wall of the socket hole, the clamping unit comprises two electrode spring plates which are arranged at the upper end of the linkage electrode block and are symmetrically arranged along the width direction, a fixing unit is arranged between the insulating connecting plate and the PDU power socket, the fixing unit comprises a locking block, the inner wall of the limiting sliding groove is symmetrically provided with two connecting grooves communicated with the locking block along the width direction, and the connecting grooves are slidably connected with the locking block.

Preferably, the clamping unit further comprises a containing groove, two groups of containing grooves are symmetrically formed on opposite sides of the inner wall of the live wire hole and the zero wire hole along the length direction, a top-extension spring rod is arranged in the containing groove, and a pushing block is arranged at the end part of the top-extension spring rod;

the upper half parts of the two electrode spring plates at the upper end of the same linkage electrode block form an X-shaped structure, opposite sides of the upper half parts of the two electrode spring plates are in butt joint, opposite sides of the middle parts of the two electrode spring plates are gradually inclined to one side far away from the middle part of the linkage electrode block, and the lower half parts of the two electrode spring plates are parallel.

Preferably, the fixing unit further comprises a linkage rod, the lower end of the connecting groove is provided with a guide sliding groove, the guide sliding groove is slidably abutted with the linkage rod arranged at the lower end of the locking block, the interior of the PDU power socket is further provided with a plurality of round grooves corresponding to the positions of the insulating connecting plates, the round grooves are communicated with the two guide sliding grooves at the upper ends of the round grooves, the bottom wall of each round groove is rotatably connected with a rotary rod through a torsion spring, and an execution rod is rotatably connected between the upper end of each rotary rod and the lower end of each linkage rod.

Preferably, the fixing unit further comprises a groove, the groove is formed in any side of the outer wall of the rotating rod, two sides of the length direction of the groove are located between the connecting position of the rotating rod and the executing rod and the torsion spring, the sliding block is connected in the groove in a sliding mode, a push-pull rod is hinged to one side, away from the rotating rod, of the sliding block, and one end, away from the sliding block, of the push-pull rod penetrates through the PDU power socket and then extends to the outside.

Preferably, the power-off device further comprises a positioning electrode block arranged at the lower end of the lead, through holes are formed in the lower portions of the live wire hole and the zero wire hole on the PDU power socket, an insulation sliding rod is arranged in the through holes in a sliding mode, the upper end of the insulation sliding rod is provided with a movable electrode block matched with the positioning electrode block, a telescopic spring rod is arranged at one end of the insulation sliding rod, a fixing plate connected with the telescopic spring rod is arranged on the outer wall of the PDU power socket, and a locking unit and an automatic unlocking unit are arranged between one side, far away from the fixing plate, of the outer wall of the PDU power socket and the insulation sliding rod.

Preferably, the locking unit includes the hemisphere groove, and a plurality of hemisphere grooves have been seted up along length direction equidistant to one side upper end that the expansion spring pole was kept away from to the insulating sliding rod, and PDU supply socket outer wall installs a plurality of bearing boards that are located the insulating sliding rod top, and the slip is worn to be equipped with the butt round pin on the bearing board, installs reset spring between butt round pin upper end and the bearing board top, and reset spring cover locates the butt round pin outside, and the butt round pin bottom slides and contradicts in the hemisphere inslot.

Preferably, the automatic unlocking unit comprises a mounting plate, wherein the mounting plate is arranged above the supporting plate and positioned on the outer wall of the PDU power socket, an electromagnetic block is arranged on the mounting plate, a controller is arranged between two insulating sliding rods of the outer wall of the PDU power socket and positioned in the same group of socket holes through a supporting frame, two wires connected with the electromagnetic block are symmetrically arranged on the outer wall of the controller, and a magnetic plate which is attracted with the magnetism of the electromagnetic block is arranged at the upper end of the interference pin.

Preferably, the chamfer is seted up to the upper end of latch segment opposite side for one side that the upper end of latch segment opposite side is close to spacing spout is gradually downward sloping, and the latch segment lower extreme is the horizontal plane, and one side that the limit spout was kept away from to latch segment upper end inclined plane is located inside the spread groove.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the invention, the electrode elastic sheet is abutted against the outer wall of the pin to form electric connection, and after the plug is inserted into the socket hole, the plug drives the linkage electrode block and the electrode elastic sheet to integrally move downwards, so that the pushing block applies pushing force to the electrode elastic sheet under the action of the pushing spring rod, friction force between the electrode elastic sheet and the pin is increased, and the pin can be clamped while electric connection is performed, thereby avoiding the plug from loosening and falling easily.

2. According to the invention, the insulating connecting plate can be limited and fixed through locking, so that the linkage electrode block and the electrode elastic sheet are limited and fixed, and the electrode elastic sheet can be ensured to always maintain the clamping effect on the pins, so that the plug can be further limited and fixed; when the plug is pulled out, the insulating connecting plate firstly drives the top contact rod, the linkage electrode block, the electrode elastic sheet and the plug to integrally move upwards, so that the electric connection between the linkage electrode block and the fixed electrode block can be disconnected, and the plug can be lifted upwards, so that operators do not need to worry about electric shock and electric leakage in the process of pulling out the plug, the safety is improved, and the potential safety hazard is reduced.

3. According to the invention, the insulation sliding rod can be limited and fixed through the mutual matching between the abutting pin and the hemispherical groove, so that the influence on the electric connection between the positioning electrode block and the moving electrode block caused by random movement of the moving electrode block is prevented; when electric leakage and electric shock occur, the electromagnetic block can drive the abutting pin to move upwards through the magnetic plate, so that the limiting effect of the abutting pin on the insulating sliding rod is relieved, the insulating sliding rod drives the movable electrode block to slide towards one side close to the fixed plate rapidly under the action of the telescopic spring rod, the positioning electrode block is powered off immediately, safety is improved, loss is reduced, and safety of operators can be ensured.

Drawings

The invention will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic diagram of the structure between the PDU power outlet and the plug-in device of the present invention.

Fig. 3 is a schematic diagram of a first internal structure of the plugging device according to the present invention.

Fig. 4 is an enlarged view of a portion of fig. 3 a of the present invention.

Fig. 5 is a schematic diagram of a second internal structure of the plugging device according to the present invention.

Fig. 6 is a schematic view of the structure between the clamping unit and the fixing unit of the present invention.

Fig. 7 is a schematic structural view of the fixing unit of the present invention.

Fig. 8 is an enlarged view of a portion of the invention at B of fig. 7.

Fig. 9 is a schematic view of the structure between the power plug-in device and the power cut-off device of the present invention.

Fig. 10 is an enlarged view of a portion of fig. 9C in accordance with the present invention.

In the figure, 1, a PDU power socket; 11. a protective shell; 2. a support lug; 3. a socket hole; 4. a power-on device; 41. fixing the electrode block; 42. a top contact rod; 43. limiting sliding grooves; 44. an insulating connecting plate; 45. retracting the spring rod; 46. a linkage electrode block; 47. a clamping unit; 471. an electrode spring plate; 472. a receiving groove; 473. pushing and extending a spring rod; 474. pushing the block; 48. a fixing unit; 481. a locking block; 482. a linkage rod; 483. a rotating rod; 484. an actuator lever; 485. a groove; 486. a slide block; 487. a push-pull rod; 5. a power-off device; 51. a wire; 52. positioning an electrode block; 53. an insulating sliding rod; 54. moving the electrode block; 55. a telescoping spring rod; 56. a fixing plate; 57. a locking unit; 571. hemispherical grooves; 572. a bearing plate; 573. an abutment pin; 574. a return spring; 58. an automatic unlocking unit; 581. a mounting plate; 582. an electromagnetic block; 583. a controller; 584. an electric wire; 585. a magnetic plate.

Detailed Description

Embodiments of the invention are described in detail below with reference to fig. 1-10, but the invention can be practiced in many different ways as defined and covered by the claims.

The embodiment of the application discloses PDU power supply equipment with a protection function, which is mainly applied to the protection of the PDU power supply in the use process, and can obtain clamping and limiting fixation after a plug is inserted into a socket hole 3 in the technical effect, so that the plug is prevented from loosening and falling easily, and the electrical connection of the plug can be disconnected firstly in the plug pulling process, so that the electric shock and electric leakage are not needed, the safety is improved, and the potential safety hazard is reduced; particularly, when the plug is fixed, the electrode spring 471 can be abutted against the outer wall of the pin of the plug, so that the pin can be clamped while in electric connection, and the electrode spring 471 can be ensured to always maintain the clamping effect on the pin by limiting and fixing the electrode spring 471, so that the plug can be further limited and fixed; furthermore, the PDU power supply equipment with the protection function can also rapidly power off the plug when electric leakage and electric shock occur, so that the safety is improved, the loss is reduced, and the safety of operators can be ensured.

Embodiment one:

referring to fig. 1, a PDU power supply device with protection function, including PDU power socket 1, PDU power socket 1 outer wall length direction symmetry is provided with two lugs 2, PDU power socket 1 upper end has offered multiunit socket hole 3 along length direction equidistant, socket hole 3 includes live wire hole, zero line hole and earth connection hole, PDU power socket 1 upper end installs a plurality of protecting shells 11 corresponding with socket hole 3 positions, protecting shells 11 cover locates socket hole 3's outside, can protect the plug through protecting shells 11, avoid operating personnel's hand to touch the pin on the plug and take place the electric shock, PDU power socket 1 internally mounted has plug-in device 4 and outage device 5.

In practical application, the PDU power socket 1 is electrically connected with a power supply in the cabinet, then the PDU power socket 1 is installed on the inner wall of the cabinet through the support lugs 2, then the plug is inserted into the socket hole 3, and the plug is clamped and fixed through the plugging device 4, so that the plug is prevented from falling off, and the plug cannot be pulled out due to misoperation of an operator; in addition, when the PDU power socket 1 is in electric leakage or operators get electric shock, the power-off device 5 can automatically power off the plug, so that safety accidents are avoided.

Referring to fig. 2 and 3, since the socket hole 3 of the PDU power socket 1 is normally in an energized state, the risk of electric shock to the hands of the operator easily occurs during the plug plugging process, and in order to reduce the risk of electric shock, the plug plugging device 4 for power outage during plug plugging is provided in this embodiment; specifically, insert electric installation 4 including setting up the fixed electrode piece 41 at the interior diapire of socket hole 3, insert electric installation 4 still including top feeler lever 42, PDU supply socket 1 upper end wears to be equipped with a plurality of top feeler levers 42 that are located the live wire hole and the zero line hole middle part of every group socket hole 3, PDU supply socket 1 is inside to be offered and to be linked together with live wire hole and zero line hole spacing spout 43, the insulating connecting plate 44 of slip butt joint in spacing spout 43 is installed to top feeler lever 42 lower extreme, be provided with two shrink spring levers 45 along top feeler lever 42 symmetry between insulating connecting plate 44 upper end and the interior roof of spacing spout 43.

Further, in the present embodiment, the linkage electrode blocks 46 slidably abutted in the live wire hole and the neutral wire hole are respectively mounted on both sides of the insulating connection plate 44 in the length direction, the clamping unit 47 is disposed between the linkage electrode blocks 46 and the inner wall of the socket hole 3, and the fixing unit 48 is disposed between the insulating connection plate 44 and the PDU power socket 1.

In the initial state, the contraction spring rod 45 always applies an upward contraction force to the insulation connection plate 44, so that the insulation connection plate 44, the linkage electrode block 46 and the top contact rod 42 are at the highest position, at this time, the upper end of the top contact rod 42 extends out of the PDU power socket 1, and no contact occurs between the linkage electrode block 46 and the fixed electrode block 41.

In the specific implementation process, after the plug is inserted into the socket hole 3, the pins of the plug firstly lean against the upper end of the linkage electrode block 46, at this time, no contact occurs between the linkage electrode block 46 and the fixed electrode block 41, then the plug is continuously pressed downwards, the plug drives the linkage electrode block 46 to move downwards and collide with the fixed electrode block 41, so that a passage is formed through the fixed electrode block 41 and the linkage electrode block 46, and at this time, the plug finishes power connection; at the same time, the plug applies a downward force to the top contact rod 42, so that the top contact rod 42 drives the insulating connecting plate 44 and the linkage electrode block 46 to move downward to the lowest position as a whole.

During the period, the clamping unit 47 can clamp and limit the plug to ensure that the pins of the plug are always in a power-on state, and the plug can be prevented from being pulled out due to misoperation of an operator, so that the safety is improved; in addition, the insulating connecting plate 44 can be limited and fixed through the fixing unit 48, so that the insulating connecting plate 44 drives the linkage electrode block 46 and the fixed electrode block 41 to always keep abutting, and the condition of power failure is avoided.

Referring to fig. 4, in order to avoid the hidden trouble that the plug falls off at will under the condition of plugging electricity and is easy to generate electric leakage and electric shock, a clamping unit 47 for clamping and limiting the plug is provided in the embodiment; specifically, the clamping unit 47 includes two electrode spring pieces 471 that install in linkage electrode piece 46 upper end and set up along width direction symmetry, and clamping unit 47 still includes holding tank 472, and two sets of holding tank 472 have all been seted up along length direction symmetry to the inner wall opposite side in live wire hole and zero line hole, installs in the holding tank 472 and stretches spring rod 473 in the top, and the spring rod 473 tip is provided with the push piece 474 in the top.

Further, in the present embodiment, the upper half parts of the two electrode spring pieces 471 at the upper end of the same linkage electrode block 46 form an X-shaped structure, opposite sides of the upper half parts of the two electrode spring pieces 471 are abutted against each other, and opposite sides of the middle parts of the two electrode spring pieces 471 are gradually inclined to a side far from the middle part of the linkage electrode block 46, and the lower half parts of the two electrode spring pieces 471 are parallel.

In the present embodiment, the push spring rod 473 always applies a push force to the push block 474 toward one side of the electrode spring 471, so that the push block 474 slides against the outer wall of the electrode spring 471; in the initial state, the insulating connecting plate 44 drives the electrode spring 471 to be at the highest position through the linkage electrode block 46, and at the moment, the pushing block 474 abuts against the lower part of the outer wall of the electrode spring 471.

In the specific implementation process, after the plug is inserted into the socket hole 3, the live wire pin and the neutral wire pin are respectively inserted between two electrode spring pieces 471 at the upper end of the linkage electrode block 46, so that the electrode spring pieces 471 are abutted against the outer walls of the pins to form electrical connection; then the plug is continuously pressed downwards, the plug drives the top contact rod 42, the insulating connecting plate 44, the linkage electrode block 46 and the electrode spring sheet 471 to integrally move downwards, and when the linkage electrode block 46 is in contact with the fixed electrode block 41, the plug completes power connection; during this period, the upper half of the electrode spring 471 is located in contact with the pushing block 474, so that the pushing block 474 applies a pushing force to the electrode spring 471 under the action of the pushing spring rod 473, thereby increasing the friction between the electrode spring 471 and the pins, and simultaneously, the pins can be clamped during the electrical connection, so as to avoid the loose and easy falling of the plug.

Referring to fig. 5, 6 and 7, in order to avoid safety accidents caused by the fact that an operator pulls out the plug from the PDU power socket 1 by misoperation, the cabinet is easily powered off; based on this, in this embodiment, there is provided a fixing unit 48 for further limiting and fixing the plug, specifically, the fixing unit 48 includes a locking block 481, two connecting slots which are communicated with the inner wall of the limiting chute 43 are symmetrically provided along the width direction of the fixing unit, the locking block 481 is slidably connected in the connecting slots, a guiding chute is provided at the lower end of the connecting slots, a linkage rod 482 mounted at the lower end of the locking block 481 is slidably abutted in the guiding chute, the linkage rod 482 can only slide reciprocally in the guiding chute through the arrangement of the guiding chute, a plurality of circular slots corresponding to the positions of the insulating connecting plate 44 are further provided in the PDU power socket 1, the circular slots are communicated with the two guiding chutes at the upper end of the circular slots, the bottom wall of each circular slot is rotatably connected with a rotating rod 483 through a torsion spring, and an actuating rod 484 is rotatably connected between the upper end of the rotating rod 483 and the lower end of the linkage rod 482.

In this embodiment, through the setting of torsional spring for rotary rod 483 has anticlockwise pivoted torsional force all the time, thereby rotary rod 483 drives latch 481 through actuating lever 484 and gangbar 482 and stretches into in spacing spout 43 under the initial condition, and gangbar 482 supports and leans on one side that the direction spout is close to spacing spout 43 this moment, thereby makes rotary rod 483 keep horizontal stationary state under the effect of gangbar 482, and rotary rod 483 drives latch 481 through actuating lever 484 and gangbar 482 and stretches into in the spacing spout 43 this moment.

It should be noted that, the upper ends of the opposite sides of the locking block 481 are provided with chamfers, so that the upper ends of the opposite sides of the locking block 481 are gradually inclined downwards near one side of the limiting chute 43, the lower ends of the locking block 481 are horizontal planes, and one side of the inclined surface of the upper ends of the locking block 481, which is far away from the limiting chute 43, is located inside the connecting groove.

Referring to fig. 8, further, in this embodiment, the fixing unit 48 further includes a groove 485, a groove 485 is formed on any side of the outer wall of the rotating rod 483, two sides of the length direction of the groove 485 are located between the connection portion of the groove 485 and the actuating rod 484 and the torsion spring, a sliding block 486 is slidably connected in the groove 485, a push-pull rod 487 is hinged to one side of the sliding block 486 away from the rotating rod 483, and when the push-pull rod 487 moves along the axis, the rotating rod 483 can be rotated by the matching belt between the sliding block 486 and the groove 485, and one end of the push-pull rod 487 away from the sliding block 486 extends to the outside after penetrating through the PDU power socket 1.

In a specific implementation process, when the top contact rod 42 drives the insulating connecting plate 44 to move downwards to the inclined plane at the upper end of the locking block 481, the insulating connecting plate 44 applies a downward pressure to the locking block 481, so that the locking block 481 is contracted into the connecting groove, then the rotating rod 483 drives the locking block 481 to reset and lean against the upper end of the insulating connecting plate 44 through the actuating rod 484 and the linkage rod 482 under the action of the torsion spring, thereby limiting and fixing the insulating connecting plate 44, further limiting and fixing the linkage electrode block 46 and the electrode elastic sheet 471, avoiding that the insulating connecting plate 44 drives the linkage electrode block 46 and the electrode elastic sheet 471 to rebound upwards under the action of the contracting spring rod 45, and ensuring that the electrode elastic sheet 471 always keeps the clamping effect on the pins, further limiting and fixing the plug, and avoiding that the plug is pulled out at will.

When the plug is required to be pulled out, the push-pull rod 487 is pressed, the push-pull rod 487 applies pushing force to the rotary rod 483 through the sliding block 486, so that the rotary rod 483 rotates clockwise and drives the locking block 481 to shrink into the connecting groove through the executing rod 484 and the linkage rod 482, and the limiting effect of the locking block 481 on the insulating connecting plate 44 is relieved; in addition, the elasticity of the push-up spring rod 473 is smaller than that of the contraction spring rod 45, and when the electrode elastic sheet 471 is pushed by the pushing block 474, the contraction spring rod 45 can still drive the linkage electrode block 46 and the electrode elastic sheet 471 to move upwards to reset through the insulating connecting plate 44.

Therefore, after the limit effect of the insulating connecting plate 44 is relieved, the insulating connecting plate 44 drives the top contact rod 42, the linkage electrode block 46, the electrode elastic sheet 471 and the plug to integrally move upwards under the action of the contraction spring rod 45, so that the electric connection between the linkage electrode block 46 and the fixed electrode block 41 can be disconnected, the plug can be lifted upwards, and electric shock and electric leakage are not needed in the process of pulling out the plug by an operator, so that the plug can be limited and fixed in time after being inserted into the socket hole 3, falling is prevented, the function that the plug is firstly powered off and then pulled off can be realized, the safety is improved, and the potential safety hazard is reduced.

Referring to fig. 9, in order to prevent occurrence of electric leakage and safety accidents when an operator gets an electric shock, a power outage device 5 for improving safety performance is provided in a specific embodiment of the present scheme; specifically, the power-off device 5 comprises a wire 51 installed at the lower end of the fixed electrode block 41, a positioning electrode block 52 is installed at the lower end of the wire 51, through holes are formed below a live wire hole and a zero wire hole on the PDU power socket 1, an insulation sliding rod 53 is arranged in the through holes in a sliding mode, a movable electrode block 54 matched with the positioning electrode block 52 is arranged at the upper end of the insulation sliding rod 53, a telescopic spring rod 55 is installed at one end of the insulation sliding rod 53, a fixed plate 56 connected with the telescopic spring rod 55 is installed on the outer wall of the PDU power socket 1, a pushing force pointing to one side far away from the fixed plate 56 is always applied to the insulation sliding rod 53 by the telescopic spring rod 55, and a locking unit 57 and an automatic unlocking unit 58 are arranged between one side of the outer wall of the PDU power socket 1 far away from the fixed plate 56 and the insulation sliding rod 53; in this embodiment, the movable electrode block 54 is electrically connected to the power supply inside the cabinet.

In the initial state, the movable electrode block 54 at the upper end of the insulation sliding rod 53 is in contact with the positioning electrode block 52 and electrically connected with the positioning electrode block, and the locking unit 57 performs limit fixation on the insulation sliding rod 53.

In the specific implementation process, when electric leakage and electric shock occur, the automatic unlocking unit 58 releases the limiting effect on the insulation sliding rod 53, so that the insulation sliding rod 53 rapidly slides to one side close to the fixed plate 56 under the action of the telescopic spring rod 55, the insulation sliding rod 53 drives the movable motor block to synchronously move and release the electrical connection between the movable motor block and the positioning electrode block 52, and the electrode spring sheet 471 and the plug are not connected with electricity any more; therefore, the function of timely automatic power off can be realized, and the potential safety hazard can be effectively reduced.

Embodiment two:

referring to fig. 10, in order to facilitate the stability of the electrical connection between the positioning electrode block 52 and the moving motor block and the automatic unlocking of the insulation slide 53, on the basis of the first embodiment; in this embodiment, the locking unit 57 includes a hemispherical groove 571, a plurality of hemispherical grooves 571 are provided at an upper end of one side of the insulation sliding rod 53 away from the extension spring rod 55 at equal intervals along a length direction, a plurality of bearing plates 572 located above the insulation sliding rod 53 are mounted on an outer wall of the pdu power socket 1, an abutting pin 573 is slidably arranged on the bearing plates 572, a return spring 574 is mounted between an upper end of the abutting pin 573 and a top of the bearing plates 572, the return spring 574 is sleeved outside the abutting pin 573, and the return spring 574 always applies a downward moving shrinkage force to the abutting pin 573, so that a bottom of the abutting pin 573 slides and abuts in the hemispherical groove 571 in an initial state, and therefore the insulation sliding rod 53 can be limited and fixed through mutual cooperation between the abutting pin 573 and the hemispherical groove 571.

Since the return spring 574 has a greater elasticity than the expansion spring lever 55, the expansion spring lever 55 cannot push the insulation slide lever 53 to the side away from the fixing plate 56 when the abutment pin 573 abuts in the hemispherical groove 571.

In a specific implementation process, the abutting pin 573 abuts against the hemispherical groove 571 under the action of the return spring 574, so that the insulating sliding rod 53 can be limited and fixed through the mutual cooperation between the abutting pin 573 and the hemispherical groove 571, and the movable electrode block 54 is prevented from being randomly moved to influence the electric connection between the positioning electrode block 52 and the movable electrode block 54.

Referring to fig. 9 and 10, further, in this embodiment, the automatic unlocking unit 58 includes a mounting plate 581, an electromagnetic block 582 is installed on the mounting plate 581, a controller 583 is provided between two insulating sliding rods 53 of the same group of socket holes 3 on the outer wall of the pdu power socket 1, two wires 584 connected with the electromagnetic block 582 are symmetrically provided on the outer wall of the controller 583, and a magnetic plate 585 magnetically attracting the electromagnetic block 582 is installed on the upper end of the interference pin; in this embodiment, the controller 583 is electrically connected to the leakage protector and the overload protector in the cabinet.

In the specific implementation process, when electric leakage and electric shock occur, after receiving a signal, the controller 583 starts the electromagnetic block 582 through the electric wire 584, and the electromagnetic block 582 drives the abutting pin 573 to move upwards through the attraction between the electromagnetic block 582 and the magnetic plate 585, so that the limiting effect of the abutting pin 573 on the insulation sliding rod 53 is relieved, and then the insulation sliding rod 53 drives the movable electrode block 54 to slide towards one side close to the fixed plate 56 rapidly under the action of the telescopic spring rod 55, so that the positioning electrode block 52 is powered off immediately, thereby improving safety, reducing loss and ensuring safety of operators.

It should be further noted that, the magnetism between the electromagnet block 582 and the magnetic plate 585 is greater than the elasticity of the return spring 574, when the controller 583 controls the electromagnet block 582 to apply electromagnetic attraction to the magnetic plate 585, the magnetic plate 585 can overcome the elasticity of the return spring 574 to drive the abutting pin 573 to move upwards, so as to remove the abutting pin 573 from the hemispherical groove 571, and unlock the insulation sliding rod 53.

When in operation, the device comprises: the first step: the PDU power socket 1 is electrically connected with a power supply in the cabinet, and then the PDU power socket 1 is installed on the inner wall of the cabinet through the lugs 2.

And a second step of: the plug is inserted into the socket hole 3, the live wire pin and the zero wire pin are respectively inserted between the two electrode elastic sheets 471 at the upper end of the linkage electrode block 46, so that the electrode elastic sheets 471 are abutted against the outer walls of the pins to form electric connection, then the plug is continuously pressed downwards, the plug drives the linkage electrode block 46 to move downwards and abut against the fixed electrode block 41, a passage is formed through the fixed electrode block 41 and the linkage electrode block 46, and the plug is powered on at the moment.

During this period, the upper half of the electrode spring 471 is located in contact with the pushing block 474, so that the pushing block 474 applies a pushing force to the electrode spring 471 under the action of the pushing spring rod 473, thereby increasing the friction between the electrode spring 471 and the pins, and simultaneously, the pins can be clamped during the electrical connection, so as to avoid the loose and easy falling of the plug.

And a third step of: after the top contact rod 42 drives the insulating connecting plate 44 to move downwards, the rotating rod 483 drives the locking block 481 to reset and lean against the upper end of the insulating connecting plate 44 through the actuating rod 484 and the linkage rod 482 under the action of the torsion spring, so that the insulating connecting plate 44 is limited and fixed, and then the linkage electrode block 46 and the electrode elastic sheet 471 are limited and fixed, the electrode elastic sheet 471 can be ensured to always keep the clamping effect on the pins, and further the plug can be limited and fixed, and the plug is prevented from being pulled out randomly.

Fourth step: when the plug is required to be pulled out, the push-pull rod 487 is pressed, the push-pull rod 487 applies pushing force to the rotary rod 483 through the sliding block 486, so that the rotary rod 483 rotates clockwise and drives the locking block 481 to shrink into the connecting groove through the executing rod 484 and the linkage rod 482, and the limiting effect of the locking block 481 on the insulating connecting plate 44 is relieved; the insulating connecting plate 44 drives the top contact rod 42, the linkage electrode block 46, the electrode elastic sheet 471 and the plug to integrally move upwards under the action of the contraction spring rod 45, so that the electric connection between the linkage electrode block 46 and the fixed electrode block 41 can be disconnected, the plug can be lifted upwards, and thus, operators do not need to worry about electric shock and electric leakage in the process of pulling out the plug, the safety is improved, and the potential safety hazard is reduced.

Fifth step: when electric leakage and electric shock occur, the controller 583 receives signals and then starts the electromagnetic block 582 through the electric wire 584, the electromagnetic block 582 drives the abutting pin 573 to move upwards through the attraction between the electromagnetic block 582 and the magnetic plate 585, so that the limiting effect of the abutting pin 573 on the insulating sliding rod 53 is relieved, and then the insulating sliding rod 53 drives the movable electrode block 54 to slide to one side close to the fixed plate 56 rapidly under the action of the telescopic spring rod 55, so that the positioning electrode block 52 is powered off immediately, safety is improved, loss is reduced, and safety of operators can be ensured.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a PDU power supply equipment with protect function, includes PDU supply socket (1), PDU supply socket (1) outer wall length direction symmetry is provided with two journal stirrup (2), and multiunit socket hole (3) have been seted up along length direction equidistant to PDU supply socket (1) upper end, and socket hole (3) include live wire hole, zero line hole and earth connection hole, its characterized in that: the utility model provides a PDU power socket (1) upper end installs a plurality of protecting crust (11) corresponding with socket hole (3) position, and the outside in socket hole (3) is located in protecting crust (11) cover, and PDU power socket (1) internally mounted has plug-in device (4) and outage device (5), and plug-in device (4) are including fixed electrode piece (41), and the interior bottom wall of socket hole (3) is provided with fixed electrode piece (41), and outage device (5) are including installing wire (51) at fixed electrode piece (41) lower extreme, wherein:

the power plug device (4) further comprises a top contact rod (42), a plurality of top contact rods (42) positioned in the middle of the live wire hole and the zero wire hole of each group of socket holes (3) are arranged at the upper end of the PDU power socket (1), a limit chute (43) communicated with the live wire hole and the zero wire hole is arranged inside the PDU power socket (1), an insulating connecting plate (44) in sliding butt joint with the limit chute (43) is arranged at the lower end of the top contact rod (42), two shrinkage spring rods (45) are symmetrically arranged between the upper end of the insulating connecting plate (44) and the inner top wall of the limit chute (43) along the top contact rod (42), the two sides of the length direction of the insulating connecting plate (44) are respectively provided with a linkage electrode block (46) which is in sliding butt joint with the inside of the live wire hole and the zero wire hole, a clamping unit (47) is arranged between the linkage electrode block (46) and the inner wall of the socket hole (3), the clamping unit (47) comprises two electrode elastic sheets (471) which are arranged at the upper end of the linkage electrode block (46) and are symmetrically arranged along the width direction, a fixing unit (48) is arranged between the insulating connecting plate (44) and the PDU power socket (1), the fixing unit (48) comprises a locking block (481), two connecting grooves which are communicated with the inner wall of the limiting chute (43) are symmetrically arranged along the width direction of the inner wall of the limiting chute, and the locking block (481) is in sliding connection with the connecting grooves;

the power-off device (5) further comprises a positioning electrode block (52) arranged at the lower end of the lead wire (51), through holes are formed in the lower portions of the live wire holes and the zero wire holes in the PDU power socket (1), insulation sliding rods (53) are arranged in the through holes in a sliding mode, movable electrode blocks (54) matched with the positioning electrode block (52) are arranged at the upper ends of the insulation sliding rods (53), telescopic spring rods (55) are arranged at one ends of the insulation sliding rods (53), fixing plates (56) connected with the telescopic spring rods (55) are arranged on the outer walls of the PDU power socket (1), and locking units (57) and automatic unlocking units (58) are arranged between one sides, far away from the fixing plates (56), of the outer walls of the PDU power socket (1) and the insulation sliding rods (53).

2. A PDU power supply unit with protection function as claimed in claim 1, characterized in that: the clamping unit (47) further comprises a containing groove (472), two groups of containing grooves (472) are symmetrically formed in opposite sides of the inner wall of the live wire hole and the inner wall of the zero wire hole along the length direction, a top-extension spring rod (473) is arranged in the containing groove (472), and a pushing block (474) is arranged at the end part of the top-extension spring rod (473);

the upper half parts of the two electrode spring plates (471) at the upper end of the same linkage electrode block (46) form an X-shaped structure, opposite sides of the upper half parts of the two electrode spring plates (471) are in butt joint, opposite sides of the middle parts of the two electrode spring plates (471) are gradually inclined to one side far away from the middle part of the linkage electrode block (46), and the lower half parts of the two electrode spring plates (471) are parallel.

3. A PDU power supply unit with protection function as claimed in claim 1, characterized in that: the fixing unit (48) further comprises a linkage rod (482), the lower end of the connecting groove is provided with a guide sliding groove, the guide sliding groove is slidably abutted with the linkage rod (482) arranged at the lower end of the locking block (481), the interior of the PDU power socket (1) is further provided with a plurality of round grooves corresponding to the positions of the insulating connecting plates (44), the round grooves are communicated with the two guide sliding grooves at the upper ends of the round grooves, the bottom wall of each round groove is rotationally connected with a rotary rod (483) through a torsion spring, and an executing rod (484) is rotationally connected between the upper end of the rotary rod (483) and the lower end of the linkage rod (482).

4. A PDU power supply unit with protection function as claimed in claim 3, characterized in that: the fixing unit (48) further comprises a groove (485), the groove (485) is formed in any side of the outer wall of the rotating rod (483), two sides of the length direction of the groove (485) are located between the connecting position of the groove (485) and the executing rod (484) and the torsion spring, the sliding connection of the groove (485) is provided with a sliding block (486), one side, far away from the rotating rod (483), of the sliding block (486) is hinged with a push-pull rod (487), and one end, far away from the sliding block (486), of the push-pull rod (487) penetrates through the PDU power socket (1) and then extends to the outside.

5. A PDU power supply unit with protection function as claimed in claim 1, characterized in that: locking element (57) are including hemisphere groove (571), and insulating slide bar (53) are kept away from one side upper end of flexible spring bar (55) and are offered a plurality of hemisphere grooves (571) along length direction equidistant, and PDU supply socket (1) outer wall is installed a plurality of support boards (572) that are located insulating slide bar (53) top, and support board (572) are gone up to slide and are worn to be equipped with butt round pin (573), install reset spring (574) between butt round pin (573) upper end and support board (572) top, and reset spring (574) cover is located butt round pin (573) outside, and butt round pin (573) bottom slides and contradicts in hemisphere groove (571).

6. A PDU power supply unit with protection function as claimed in claim 1, characterized in that: the automatic unlocking unit (58) comprises a mounting plate (581), wherein the mounting plate (581) is arranged on the outer wall of the PDU power socket (1) and located above the supporting plate (572), an electromagnetic block (582) is mounted on the mounting plate (581), a controller (583) is arranged between two insulating sliding rods (53) of the same group of socket holes (3) on the outer wall of the PDU power socket (1), two wires (584) connected with the electromagnetic block (582) are symmetrically arranged on the outer wall of the controller (583), and a magnetic plate (585) magnetically attracted with the electromagnetic block (582) is mounted on the upper end of the interference pin.

7. A PDU power supply unit with protection function as claimed in claim 1, characterized in that: the chamfer is arranged at the upper end of the opposite side of the locking block (481), so that one side, close to the limiting sliding groove (43), of the upper end of the opposite side of the locking block (481) gradually inclines downwards, the lower end of the locking block (481) is a horizontal plane, and one side, far away from the limiting sliding groove (43), of the inclined surface of the upper end of the locking block (481) is located inside the connecting groove.