CN110011404B - EPS power cabinet - Google Patents
EPS power cabinet Download PDFInfo
- Publication number
- CN110011404B CN110011404B CN201910342184.2A CN201910342184A CN110011404B CN 110011404 B CN110011404 B CN 110011404B CN 201910342184 A CN201910342184 A CN 201910342184A CN 110011404 B CN110011404 B CN 110011404B
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- inverter box
- energy storage
- storage spring
- cam
- cabinet body
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- 238000004146 energy storage Methods 0.000 claims abstract description 102
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 12
- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of EPS emergency power supplies, and aims to provide an EPS power supply cabinet, which comprises a cabinet body, wherein a containing cavity is arranged in the cabinet body; the accommodating cavity is connected with an inverter box in a sliding way; a plurality of pushing grooves are uniformly formed in the bottom of the inverter box along the sliding direction; the bottom of the accommodating cavity is hinged with a propelling wheel, and propelling teeth are uniformly arranged on the edge of the propelling wheel; the cabinet body is internally provided with an energy storage spring, one end of the energy storage spring is hinged in the cabinet body, the other end of the energy storage spring is connected to the propelling wheel, and the energy storage spring can stretch or shrink along with the rotation of the propelling wheel. When the inverter box is pushed inwards, the energy storage spring is stretched to store energy, and then the energy storage spring can provide outwards popping force for the inverter box when released, so that a worker can conveniently withdraw the inverter box for overhauling, and the inverter box is locked by the locking mechanism after being pushed into the accommodating cavity.
Description
Technical Field
The invention relates to the technical field of EPS emergency power supplies, in particular to an EPS power supply cabinet.
Background
The EPS power supply is also called a fire emergency power supply, and is an emergency power supply adopted for power guarantee and fire safety in important buildings at present. The device mainly comprises an input and output unit, a charging module, a battery pack, an inverter, a monitor, an output switching device and the like. The energy-saving and energy-saving system is widely applied to energy conservation and power supply, building illumination, road traffic illumination, tunnel illumination, electric power, industrial and mining enterprises, firefighting elevators and the like.
Currently, a chinese patent document with an authorized bulletin number CN208479008U in the prior art discloses an EPS power cabinet, which includes a cabinet body, a containing device and a supporting device, wherein the containing device is slidably connected to the supporting device; the accommodating device comprises a drawer and a cover plate, the control board and the inversion module are arranged in the drawer, the circuit of the control board and the inversion module is led out through a wiring terminal, and the circuit in the cabinet body is led out through an outlet terminal; the containing device slides inwards, so that the wiring terminal and the wire outlet terminal are mutually spliced to realize connection of a circuit, and then the containing device is fixed in the cabinet body through the matching of the bolt and the positioning hole.
However, the disassembly and assembly by fixing the bolts are troublesome, and the control panel and the inversion module in the accommodating device are inconvenient to overhaul.
Disclosure of Invention
The invention aims to provide an EPS power cabinet which has the effect of facilitating overhauling of an inverter.
The technical aim of the invention is realized by the following technical scheme:
An EPS power cabinet comprises a cabinet body, wherein an accommodating cavity is arranged in the cabinet body; the accommodating cavity is connected with an inverter box in a sliding way; an outlet terminal is arranged at one inward end of the inverter box, and a wiring terminal capable of being matched with the outlet terminal along the sliding direction of the inverter box is arranged in the accommodating cavity; a plurality of pushing grooves are uniformly formed in the bottom of the inverter box along the sliding direction; the bottom of the accommodating cavity is hinged with a propelling wheel, and a plurality of propelling teeth capable of being meshed with the propelling grooves are uniformly arranged on the edge of the propelling wheel along the circumferential direction; an energy storage spring is arranged in the cabinet body, one end of the energy storage spring is hinged in the cabinet body, the other end of the energy storage spring is connected to the propelling wheel, and the energy storage spring can stretch or shrink along with the rotation of the propelling wheel; the cabinet body is internally provided with a locking mechanism for locking the inverter box.
By adopting the technical scheme, when the inverter box slides in the accommodating cavity, the pushing groove pushes the pushing teeth to move and drives the pushing wheel to rotate, so that the stretching and the shrinking of the energy storage spring are realized; the stretching action of the energy storage spring is realized by the force application of an operator, energy is provided for the energy storage spring, and two different effects can be respectively realized according to the installation mode of the energy storage spring: firstly, when the inverter box is pulled outwards, the energy storage spring is stretched to store energy, so that the inverter box can be quickly moved inwards to reset when the energy storage spring is released, and the connection stability between the wiring terminal and the outgoing terminal is enhanced; and secondly, when the inverter box is pushed inwards, the energy storage spring is stretched to store energy, and then the energy storage spring can provide outwards popping force for the inverter box when released, so that a worker can conveniently withdraw the inverter box for overhauling, and the inverter box is locked by the locking mechanism after being pushed into the accommodating cavity.
The invention is further provided with: a linkage gear is fixedly connected to the propulsion wheel along the axial lead, and a driven gear meshed with the linkage gear is hinged in the cabinet body; and the driven gear is fixedly connected with a cam along the axial lead, and the end part of the energy storage spring is hinged at the eccentric position of the cam.
Through adopting above-mentioned technical scheme, utilize the gear ratio between linkage gear and the driven gear, confirm the angle that the cam rotated when the dc-to-ac converter box moved certain distance to can adjust the state of energy storage spring when the dc-to-ac converter box moved to different positions through changing gear ratio.
The invention is further provided with: the eccentric position of the cam is axially provided with a rotating shaft, and the end part of the energy storage spring is hinged to the end part of the rotating shaft extending outwards.
By adopting the technical scheme, a certain operation space is formed between the energy storage spring and the cam, and the energy storage spring is prevented from obstructing the rotation of the driven gear or the cam.
The invention is further provided with: three position nodes of an outer node, a critical point and an inner node are sequentially arranged along the sliding track of the inverter box in the accommodating cavity from outside to inside; setting the hinged position of the energy storage spring on the cam as the orientation of the cam; the cam faces the energy storage spring when the inverter box moves to the external node, and faces away from the energy storage spring when the inverter box moves to the critical point; when the inverter box moves to the inner node, the wiring terminal and the outgoing terminal are connected with each other; the inverter box moves from an outer node to an inner node, and the rotation angle of the cam is smaller than 360 degrees.
By adopting the technical scheme, when the inverter box is positioned at the outer node position, the expansion variable of the energy storage spring is the minimum value; when the inverter box is pushed inwards from the outer node, the energy storage spring is stretched to store energy, the cam just rotates 180 degrees when the energy storage spring reaches a critical point, and the expansion variable of the energy storage spring reaches the maximum value; the inverter box continues to move inwards, the energy storage spring releases energy and pushes the inverter box inwards through the pushing wheel, so that the wiring terminal and the outgoing terminal are automatically connected, have enough stability and are convenient for the locking mechanism to lock; and pull out the dc-to-ac converter box earlier and receive the resistance, can outwards pop out fast under the effect of energy storage spring when the dc-to-ac converter box behind the critical point, the operation of being convenient for, and pop out and to the outer node position when energy storage spring can also play the cushioning effect to the dc-to-ac converter box.
The invention is further provided with: three position nodes of an outer node, a critical point and an inner node are sequentially arranged along the sliding track of the inverter box in the accommodating cavity from outside to inside; setting the hinged position of the energy storage spring on the cam as the orientation of the cam; the cam faces away from the energy storage spring when the inverter box moves to the external node, and faces towards the energy storage spring when the inverter box moves to the critical point; when the inverter box moves to the inner node, the wiring terminal and the outgoing terminal are connected with each other; the inverter box moves from an outer node to an inner node, and the rotation angle of the cam is smaller than 360 degrees.
By adopting the technical scheme, when the inverter box is positioned at the inner node position, certain energy is stored in the energy storage spring, and when the locking mechanism is unlocked, the inverter box automatically moves outwards under the action of the energy storage spring, so that the connection terminal and the outgoing terminal are conveniently disconnected; when the inverter box moves to a critical point, the expansion variable of the energy storage spring reaches the minimum value, and the inverter box stops moving outwards under the buffer action of the energy storage spring, so that the next operation of staff is facilitated; the inverter box continues the outward motion then energy storage spring is stretched and is carried out the energy storage again, and the flexible variable of energy storage spring reaches the maximum value when reaching outer node position, can observe or select the inverter box to take out the inverter box this moment, if loosen the inverter box, then the inverter box can reset towards critical point direction fast under the effect of energy storage spring, is convenient for lock the inverter box again.
The invention is further provided with: an eccentric block is hinged to one side of the cam in the cabinet body, and the side wall of the eccentric block can be mutually abutted with the side wall of the cam; the cabinet body is internally provided with a bidirectional torsion spring or two opposite torsion springs for limiting the rotation of the eccentric block.
Through adopting above-mentioned technical scheme, when the inverter box moved to the critical point, cam and the mutual butt of eccentric block for the resistance that receives when the inverter box moved increases, thereby the position of the critical point of operating personnel location of being convenient for, in order to carry out more accurate, stable operation.
The invention is further provided with: a battery compartment is arranged in the cabinet body, and a battery pack is arranged in the battery compartment; the locking mechanism comprises an electromagnet and a triggering device; the electromagnet comprises a coil, an iron core, an ejector rod and a reset spring, and the coil is electrically connected with the battery pack through a trigger device to form a breaking circuit; an inward end part of the inverter box is provided with a contact pin which can be matched with the trigger device to realize the closing of a breaking circuit; the inverter box is provided with a locking hole matched with the ejector rod.
Through adopting above-mentioned technical scheme, when the inverter box moves to interior node towards the holding intracavity, contact pin and trigger device cooperation realize breaking circuit's closure, make between electro-magnet and the group battery form the return circuit to make the ejector pin jack-in realize locking in the locking hole on the inverter box under the magnetic force effect that the iron core produced, make the inverter box unable towards the outer motion of holding chamber. The electromagnet has low energy consumption and can operate only by small current, when the battery pack runs out of electricity or fails and cannot supply power, the electromagnet loses electricity so that the ejector rod is ejected out of the locking hole under the action of the reset spring, and therefore the inverter box cannot be locked, and an operator is reminded to overhaul; and the loop of the electromagnet can be integrated into the power supply output circuit of the battery pack, so that a certain monitoring effect is achieved on the power supply loop.
The invention is further provided with: the triggering device comprises a connecting seat; the connecting seat is provided with a jack for inserting the contact pin, and a first contact piece and a second contact piece which are not contacted with each other are arranged in the jack; the first contact piece, the second contact piece and the part of the contact pin inserted into the jack are all made of conductive materials; the first contact piece and the second contact piece are respectively and electrically connected with two ends of a breaking position of the breaking circuit.
By adopting the technical scheme, the contact pins are used as the conductive medium and respectively contacted with the first contact piece and the second contact piece after being inserted into the jacks, so that the circuit is closed; compared with the mode that the trigger device is internally provided with the movable element serving as a conductive medium and the contact pin serving as an action element, the scheme avoids the situation that a circuit is automatically closed in the trigger device due to faults or other factors after the inverter box is pulled out.
The invention is further provided with: the contact pin is connected to the inverter box in a sliding manner; one end of the contact pin, which is far away from the trigger device, penetrates through the inverter box, and a limiting rod extending along the radial direction is rotatably connected to the end part of the contact pin; the front end of the inverter box is provided with a U-shaped block which can be rotationally embedded by a limiting rod at one side of the contact pin.
By adopting the technical scheme, when the limiting rod is embedded into the groove on the U-shaped block, the contact pin is limited and cannot move along the axial direction, so that the front end of the contact pin can be ensured to be stably inserted into the jack to be contacted with the first contact piece and the second contact piece; after the limiting rod is rotated to separate from the U-shaped block, the contact pin is pulled out outwards, the front end of the contact pin is driven to be separated from the jack, the loop can be disconnected, and the locking mechanism is unlocked, so that the inverter box can be pulled out outwards. The contact pin is kept in a pulled-out state, and the locking mechanism is not automatically locked when the inverter box moves inwards, so that repeated operation when the inverter box is pulled out for a plurality of times is avoided.
In summary, the beneficial effects of the invention are as follows:
1. Two different effects are respectively realized according to the initial state of the energy storage spring:
(1) In the first state, when the inverter box is positioned at the outer node position, the expansion variable of the energy storage spring is the minimum value; when the inverter box is pushed inwards from the outer node, the energy storage spring is stretched to store energy, and the cam just rotates 180 degrees when the energy storage spring reaches a critical point, so that the expansion variable of the energy storage spring reaches the maximum value; the inverter box continues to move inwards, the energy storage spring releases energy and pushes the inverter box inwards through the pushing wheel, so that the wiring terminal and the outgoing terminal are automatically connected, have enough stability and are convenient for the locking mechanism to lock; the inverter box is pulled outwards to receive resistance, the inverter box can be rapidly ejected outwards under the action of the energy storage spring after passing through a critical point, the operation is convenient, and the energy storage spring can also play a role in buffering the inverter box when being ejected to an external node position;
(2) In the second state, when the inverter box is positioned at the inner node position, a certain amount of energy is stored in the energy storage spring, and when the locking mechanism is unlocked, the inverter box automatically moves outwards under the action of the energy storage spring, so that the connection terminal and the outgoing terminal are conveniently disconnected; when the inverter box moves to a critical point, the expansion variable of the energy storage spring reaches the minimum value, and the inverter box stops moving outwards under the buffer action of the energy storage spring, so that the next operation of staff is facilitated; the inverter box continues to move outwards, the energy storage spring is stretched to store energy again, the expansion variable of the energy storage spring reaches the maximum value when the outer node position is reached, the inverter box can be observed or selected to be taken out, if the inverter box is loosened, the inverter box can be quickly reset towards the critical point under the action of the energy storage spring, and the inverter box can be conveniently locked again;
2. Closing a breaking circuit by matching the contact pin with the triggering device, so that a loop is formed between the electromagnet and the battery pack, and the ejector rod is ejected into a locking hole on the inverter box to realize locking under the action of magnetic force generated by the iron core, so that the inverter box cannot move towards the outside of the accommodating cavity; the electromagnet has low energy consumption and can operate only by small current, when the battery pack runs out of electricity or fails and cannot supply power, the electromagnet loses electricity so that the ejector rod is ejected out of the locking hole under the action of the reset spring, and therefore the inverter box cannot be locked, and an operator is reminded to overhaul; and the loop of the electromagnet can be integrated into the power supply output circuit of the battery pack, so that a certain monitoring effect is achieved on the power supply loop.
Drawings
FIG. 1 is a schematic overall structure of the first embodiment;
fig. 2 is a schematic cross-sectional view of the first embodiment for showing the structure of the inverter case and the inside of the accommodation chamber;
FIG. 3 is a schematic structural diagram of an electromagnet according to the first embodiment;
FIG. 4 is a schematic view of the trigger device of the first embodiment;
FIG. 5 is an enlarged schematic view at A in FIG. 2;
FIG. 6 is a schematic side cross-sectional view of a first embodiment showing an energy storage mechanism;
FIG. 7 is an enlarged schematic view at B in FIG. 6;
FIG. 8 is a schematic diagram showing the distribution of the inner node, the critical point and the outer node according to the first embodiment;
fig. 9 is a schematic diagram of the distribution of the inner node, the critical point and the outer node in the second embodiment.
Reference numerals: 1. a cabinet body; 11. a receiving chamber; 111. a connection terminal; 112. a slide rail; 12. a battery compartment; 121. a battery pack; 2. an inverter case; 21. a wire outlet terminal; 22. a contact pin; 221. a limit rod; 23. a locking hole; 24. a U-shaped block; 25. a guide edge; 251. a propulsion groove; 3. a locking mechanism; 31. an electromagnet; 311. a coil; 312. an iron core; 313. a push rod; 314. a return spring; 32. a triggering device; 321. a connecting seat; 3211. a jack; 322. a first contact; 323. a second contact; 4. an energy storage mechanism; 41. a propulsion wheel; 411. a propulsion tooth; 42. a linkage gear; 43. a driven gear; 44. a cam; 441. a rotating shaft; 45. an energy storage spring; 46. an eccentric block; 461. a bidirectional torsion spring; 5. a positioning plate; a. an inner node; b. a critical point; c. an external node.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment discloses an EPS power cabinet, as shown in fig. 1 and 2, comprising a cabinet body 1, wherein a containing cavity 11 and a plurality of battery cabins 12 are arranged in the cabinet body 1; wherein, each battery compartment 12 is provided with a battery pack 121, and the accommodating cavity 11 is slidably connected with an inverter box 2 through a sliding rail 112, and a plurality of rollers matched with the sliding rail 112 are hinged at the bottom of the inverter box 2. The inverter box 2 is internally provided with elements (not shown in the figure) such as an inverter module, a control board, a radiator and the like, the elements are connected to the outgoing line terminal 21 through a wire harness, and the outgoing line terminal 21 is fixed at one end of the inverter box 2 facing the accommodating cavity 11 through a bolt; and the inside of the accommodating cavity 11 is fixedly connected with a connecting terminal 111 which can be mutually spliced with the wire outlet terminal 21 along the direction of the sliding rail 112 to realize electric connection.
As shown in fig. 2 and 3, a lock mechanism 3 for locking the inverter case 2 is mounted in the cabinet 1, and the lock mechanism 3 includes an electromagnet 31 and a trigger 32. The electromagnet 31 is a push-pull electromagnet 31, and comprises an iron core 312, a coil 311 wound outside the iron core 312, an ejector rod 313 penetrating through the iron core 312 and a return spring 314 sleeved outside the ejector rod 313; the electromagnet 31 is fixedly arranged at the upper middle end of the deep part of the accommodating cavity 11, the ejector rod 313 is vertically arranged downwards, the position, corresponding to the ejector rod 313, on the inward end part of the inverter box 2 is provided with a locking hole 23, and after the coil 311 is electrified, the ejector rod 313 is downwards inserted into the locking hole 23 under the action of magnetic force to lock the inverter box 2, so that the inverter box 2 cannot move outwards of the accommodating cavity 11.
As shown in fig. 2 and 4, the coil 311, the trigger device 32 and the battery pack 121 are electrically connected by a wire and connected in series to form a breaking circuit; the triggering device 32 includes a connection base 321 fixedly mounted on an inner wall of the accommodating cavity 11, a jack 3211 is provided on the connection base 321 toward the inverter box 2, the breaking circuit is disconnected at the jack 3211, a first contact piece 322 and a second contact piece 323 which are not in contact with each other are relatively provided in the jack 3211 along the axis, and the first contact piece 322 and the second contact piece 323 are made of copper sheets and are respectively electrically connected with two ends of the disconnection part of the breaking circuit. And a pin 22 is slidingly connected to the inverter box 2 at a position corresponding to the jack 3211, and one end of the pin 22 facing the triggering device 32 is a conductive end made of copper or plated with copper. When the conductive end of the pin 22 is inserted into the jack 3211, the conductive end is used as a conductive medium to be respectively contacted with the first contact piece 322 and the second contact piece 323 to realize the closing of a breaking circuit, so that a conducting loop is formed between the electromagnet 31 and the battery pack 121, and a small current is provided for the electromagnet 31 by the battery pack 121 to drive the ejector rod 313 to move for locking. When the battery pack 121 runs out of electricity or fails and cannot be powered, the electromagnet 31 is powered off, so that the ejector rod 313 ejects from the locking hole 23 to reset under the action of the reset spring 314, the inverter box 2 cannot be locked, and an operator is reminded to overhaul; and the loop of the electromagnet 31 can be integrated into the power supply output circuit of the battery pack 121, so that a certain monitoring effect is achieved on the power supply loop.
As shown in fig. 4 and 5, one end of the pin 22 facing outward penetrates through the inverter case 2, and is hinged with a stop lever 221 extending in the radial direction at the end, and a U-shaped block 24 capable of being rotationally embedded by the stop lever 221 is fixedly connected to the front end of the inverter case 2 at one side of the pin 22. When the limiting rod 221 is embedded into the groove on the U-shaped block 24, the contact pin 22 is limited and cannot move along the axial direction, so that the front end of the contact pin 22 can be ensured to be stably inserted into the jack 3211 to be contacted with the first contact piece 322 and the second contact piece 323; when the limiting rod 221 is rotated to separate from the U-shaped block 24, the contact pin 22 is pulled out outwards, and the front end of the contact pin 22 is driven to be separated from the jack 3211, so that the loop is disconnected, the locking mechanism 3 is unlocked, and the inverter box 2 can be pulled out outwards; while the pins 22 are kept in the pulled-out state, the locking mechanism 3 is not automatically locked when the inverter case 2 moves inward, thereby avoiding repetitive operations when the inverter case 2 is to be pulled out a plurality of times.
As shown in fig. 6, the bottoms of both sides of the inverter box 2 are welded with guiding edges 25 extending outwards, and a plurality of pushing grooves 251 are uniformly formed on the guiding edges 25 along the sliding direction. The energy storage mechanism 4 which is linked with the sliding of the inverter box 2 is arranged in the cabinet body 1, and the energy storage mechanism 4 comprises a propelling wheel 41 hinged at the bottoms of two sides of the accommodating cavity 11, a linkage gear 42 coaxially fixed on the propelling wheel 41, a driven gear 43 hinged in the cabinet body 1 and meshed with the linkage gear 42, a cam 44 coaxially fixed on the driven gear 43, a rotating shaft 441 fixedly connected to the eccentric position of the cam 44 and an energy storage spring 45 with one end hinged on the rotating shaft 441; the other end of the energy storage spring 45 is hinged to the cabinet 1, and the hinge shaft of the energy storage spring is not arranged on the same axis as the cam 44.
As shown in fig. 7, the edge of the propulsion wheel 41 is uniformly formed with a plurality of propulsion teeth 411 along the circumferential direction, and the propulsion teeth 411 on the upper side of the propulsion wheel 41 are embedded into the propulsion grooves 251 to form a similar meshing structure, so that the sliding of the inverter box 2 and the rotation of the propulsion wheel 41 form a linkage relationship. When the propulsion wheel 41 rotates, the end part of the energy storage spring 45 moves along a circular track along with the rotation of the cam 44 through gear linkage, and the conversion ratio between the movement distance of the inverter box 2 and the rotation angle of the cam 44 is determined by utilizing the gear ratio between the linkage gear 42 and the driven gear 43; in this embodiment, the energy storage spring 45 is always kept in a certain stretched state, and the end moves along the circular track only to stretch and recover the energy storage spring 45, but not to be extruded, so that the expansion and contraction variable of the energy storage spring 45 is always positive.
As shown in fig. 7 and 8, three position nodes of an outer node c, a critical point b and an inner node a are sequentially arranged from outside to inside along the sliding track of the inverter box 2 in the accommodating cavity 11, and the position of the rotating shaft 441 on the cam 44 is set as the orientation of the cam 44; the cam 44 faces the energy storage spring 45 when the inverter case 2 moves to the outer node c, faces away from the energy storage spring 45 when the inverter case 2 moves to the critical point b, and the connection terminal 111 and the outgoing terminal 21 are connected to each other when the inverter case 2 is located at the inner node a; and the cam 44 rotates 210 degrees in the same direction in the process of moving the inverter case 2 from the outer node c to the inner node a, wherein the angle by which the cam 44 rotates in the process of moving the inverter case 2 from the critical point b to the inner node a is 30 degrees.
The above-described movement of the inverter case 2 to or at a certain node means that the front end of the inverter case 2 moves to or at the node.
When the inverter box 2 is positioned at the position of the outer node c, the expansion and contraction variable of the energy storage spring 45 is the minimum value; when the inverter box 2 is pushed inwards from the outer node c, the energy storage spring 45 is stretched to store energy, the cam 44 just rotates 180 degrees when the critical point b is reached, and the expansion variable of the energy storage spring 45 reaches the maximum value; the inverter box 2 continues to move inwards, the energy storage spring 45 releases energy and pushes the inverter box 2 inwards through the pushing wheel 41, so that the wiring terminal 111 and the wire outlet terminal 21 are automatically connected, have enough stability and are convenient for the locking mechanism 3 to lock; and pull out the inverter box 2 and receive the resistance earlier, when the past critical point b back inverter box 2 can outwards pop out under the effect of energy storage spring 45, the operation of being convenient for, and pop out to the outer node c position when energy storage spring 45 can also play the cushioning effect to inverter box 2.
As shown in fig. 7 and 8, an eccentric block 46 is hinged on one side of the cam 44 in the cabinet 1, when the inverter box 2 moves to a critical point b, the cam 44 and the eccentric block 46 are in contact with each other, and when the cam 44 moves from an inner node a to the critical point b and from an outer node c to the critical point b, the cam 44 is in contact with the eccentric block 46 from different sides; and the cabinet body 1 is also internally provided with a bidirectional torsion spring 461 for limiting the rotation of the eccentric block 46, so that when the cam 44 is abutted against the eccentric block 46, the resistance born by the inverter box 2 is increased, thereby being convenient for an operator to position the critical point b so as to perform more accurate and stable operation.
As shown in fig. 8, a positioning plate 5 is disposed above the outer node c in the accommodating cavity 11, the inverter box 2 is firstly placed into the accommodating cavity 11 from above the sliding rail 112 when being installed, and then the front end is pushed against the positioning plate 5 to move downwards so as to enable the pushing wheel 41 and the guiding edge 25 to be meshed with each other, thereby positioning the initial position of the inverter box 2 according to the state of the energy storage spring 45.
In the second embodiment, the difference between the present embodiment and the first embodiment is that:
As shown in fig. 9, when the inverter box 2 is at the critical point b, the cam 44 faces the energy storage spring 45, and the tension variable of the energy storage spring 45 is minimized. The cam 44 faces away from the energy storage spring 45 when the inverter case 2 moves to the outer node c; and when the inverter box 2 is located at the internal node a, the connection terminal 111 and the outlet terminal 21 are connected to each other; and the cam 44 rotates 210 degrees in the same direction in the process of moving the inverter case 2 from the outer node c to the inner node a, wherein the angle by which the cam 44 rotates in the process of moving the inverter case 2 from the critical point b to the inner node a is 30 degrees.
When the inverter box 2 is positioned at the position of the inner node a, a certain amount of energy is stored in the energy storage spring 45, and when the locking mechanism 3 is unlocked, the inverter box 2 automatically moves outwards under the action of the energy storage spring 45, so that the connection terminal 111 is conveniently disconnected with the outgoing terminal 21; when the inverter box 2 moves to the critical point b, the expansion variable of the energy storage spring 45 reaches the minimum value, and at the moment, the inverter box 2 stops moving outwards under the buffer action of the energy storage spring 45, so that the next operation of staff is facilitated; the inverter box 2 continues to move outwards, then the energy storage spring 45 is stretched to store energy again, and the expansion variable of the energy storage spring 45 reaches the maximum value when the outer node c is located, at this time, the inverter box 2 can be observed or selected to be taken out, if the inverter box 2 is loosened, the inverter box 2 can be quickly reset towards the critical point b under the action of the energy storage spring 45, and the inverter box 2 can be conveniently locked again.
As shown in fig. 9, a positioning plate 5 is disposed in the accommodating cavity 11 above the critical point b, and the inverter box 2 is firstly placed into the accommodating cavity 11 from above the sliding rail 112 when being installed, and then moves downwards when the front end is propped against the positioning plate 5, so that the pushing wheel 41 and the guiding edge 25 are engaged with each other, and the initial position of the inverter box 2 is positioned according to the state of the energy storage spring 45.
The above-described embodiments are provided for illustration only and not for limitation of the present invention, and modifications may be made to the above-described embodiments without creative contribution by a person skilled in the art after reading the present specification, as long as they are protected by patent law within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides an EPS power cabinet, includes cabinet body (1), its characterized in that: an accommodating cavity (11) is arranged in the cabinet body (1); an inverter box (2) is connected in a sliding way in the accommodating cavity (11); an outgoing terminal (21) is arranged at the inward end of the inverter box (2), and a wiring terminal (111) which can be matched with the outgoing terminal (21) along the sliding direction of the inverter box (2) is arranged in the accommodating cavity (11); a plurality of propelling grooves (251) are uniformly formed in the bottom of the inverter box (2) along the sliding direction; the bottom of the accommodating cavity (11) is hinged with a propelling wheel (41), and a plurality of propelling teeth (411) which can be meshed with the propelling grooves (251) are uniformly arranged on the edge of the propelling wheel (41) along the circumferential direction; an energy storage spring (45) is arranged in the cabinet body (1), one end of the energy storage spring (45) is hinged in the cabinet body (1), and the other end of the energy storage spring is connected to the propulsion wheel (41) and can stretch or shrink along with the rotation of the propulsion wheel (41); a locking mechanism (3) for locking the inverter box (2) is arranged in the cabinet body (1); a battery compartment (12) is arranged in the cabinet body (1), and a battery pack (121) is arranged in the battery compartment (12); the locking mechanism (3) comprises an electromagnet (31) and a triggering device (32); the electromagnet (31) comprises a coil (311), an iron core (312), an ejector rod (313) and a return spring (314), wherein the coil (311) is electrically connected with the battery pack (121) through a trigger device (32) to form a breaking circuit; an inward end part of the inverter box (2) is provided with a contact pin (22) which can be matched with a trigger device (32) to realize the closing of a breaking circuit; the inverter box (2) is provided with a locking hole (23) matched with the ejector rod (313); the triggering device (32) comprises a connecting seat (321); a jack (3211) for inserting the pin (22) is arranged on the connecting seat (321), and a first contact piece (322) and a second contact piece (323) which are not contacted with each other are arranged in the jack (3211); the first contact piece (322), the second contact piece (323) and the part of the contact pin (22) inserted into the jack (3211) are made of conductive materials; the first contact piece (322) and the second contact piece (323) are respectively and electrically connected with two ends of a breaking position of the breaking circuit; a linkage gear (42) is fixedly connected to the propulsion wheel (41) along the axial lead, and a driven gear (43) meshed with the linkage gear (42) is hinged in the cabinet body (1); and a cam (44) is fixedly connected to the driven gear (43) along the axial lead, and the end part of the energy storage spring (45) is hinged to the eccentric position of the cam (44).
2. The EPS power cabinet according to claim 1, characterized in that: a rotating shaft (441) is arranged at the eccentric position of the cam (44) along the axial direction, and the end part of the energy storage spring (45) is hinged to the end part of the rotating shaft (441) extending outwards.
3. The EPS power cabinet according to claim 1, characterized in that: three position nodes of an outer node (c), a critical point (b) and an inner node (a) are sequentially arranged from outside to inside along a sliding track of the inverter box (2) in the accommodating cavity (11); setting the hinged position of the energy storage spring (45) on the cam (44) as the orientation of the cam (44); the cam (44) faces the energy storage spring (45) when the inverter box (2) moves to the outer node (c), and faces away from the energy storage spring (45) when the inverter box (2) moves to the critical point (b); when the inverter box (2) moves to the inner node (a), the wiring terminal (111) and the wire outlet terminal (21) are connected with each other; the inverter box (2) moves from an outer node (c) to an inner node (a), and the rotation angle of the cam (44) is less than 360 degrees.
4. The EPS power cabinet according to claim 1, characterized in that: three position nodes of an outer node (c), a critical point (b) and an inner node (a) are sequentially arranged from outside to inside along a sliding track of the inverter box (2) in the accommodating cavity (11); setting the hinged position of the energy storage spring (45) on the cam (44) as the orientation of the cam (44); the cam (44) faces away from the energy storage spring (45) when the inverter box (2) moves to the outer node (c), and faces towards the energy storage spring (45) when the inverter box (2) moves to the critical point (b); when the inverter box (2) moves to the inner node (a), the wiring terminal (111) and the wire outlet terminal (21) are connected with each other; the inverter box (2) moves from an outer node (c) to an inner node (a), and the rotation angle of the cam (44) is less than 360 degrees.
5. The EPS power cabinet according to claim 1, characterized in that: an eccentric block (46) is hinged to one side of the cam (44) in the cabinet body (1), and the side wall of the eccentric block (46) can be mutually abutted with the side wall of the cam (44); a bidirectional torsion spring (461) or two opposite torsion springs for limiting the rotation of the eccentric block (46) are arranged in the cabinet body (1).
6. The EPS power cabinet according to claim 1, characterized in that: the contact pin (22) is connected to the inverter box (2) in a sliding manner; one end of the contact pin (22) far away from the triggering device (32) penetrates through the inverter box (2), and a limit rod (221) extending along the radial direction is rotatably connected to the end part; the front end of the inverter box (2) is provided with a U-shaped block (24) which can be rotationally embedded by a limiting rod (221) at one side of the contact pin (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342184.2A CN110011404B (en) | 2019-04-26 | 2019-04-26 | EPS power cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342184.2A CN110011404B (en) | 2019-04-26 | 2019-04-26 | EPS power cabinet |
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| Publication Number | Publication Date |
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| CN110011404A CN110011404A (en) | 2019-07-12 |
| CN110011404B true CN110011404B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910342184.2A Active CN110011404B (en) | 2019-04-26 | 2019-04-26 | EPS power cabinet |
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| CN (1) | CN110011404B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611266B (en) * | 2019-10-14 | 2020-11-06 | 安徽建筑大学 | High-voltage ring main unit with internal protection device |
| CN116667186B (en) * | 2023-05-08 | 2024-02-20 | 深圳市天一森电子有限公司 | Power supply cabinet with protection architecture |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887728A (en) * | 2014-01-28 | 2014-06-25 | 盛道（中国）电气有限公司 | Drawer type low-voltage switch cabinet |
| CN104882796A (en) * | 2015-06-05 | 2015-09-02 | 梁文辉 | Electrical switch cabinet with inner buffer spring |
| CN208479008U (en) * | 2018-07-11 | 2019-02-05 | 浙江迪能电气科技有限公司 | A kind of EPS power cabinet |
| CN209963826U (en) * | 2019-04-26 | 2020-01-17 | 浙江迪能电气科技有限公司 | EPS power cabinet |
-
2019
- 2019-04-26 CN CN201910342184.2A patent/CN110011404B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887728A (en) * | 2014-01-28 | 2014-06-25 | 盛道（中国）电气有限公司 | Drawer type low-voltage switch cabinet |
| CN104882796A (en) * | 2015-06-05 | 2015-09-02 | 梁文辉 | Electrical switch cabinet with inner buffer spring |
| CN208479008U (en) * | 2018-07-11 | 2019-02-05 | 浙江迪能电气科技有限公司 | A kind of EPS power cabinet |
| CN209963826U (en) * | 2019-04-26 | 2020-01-17 | 浙江迪能电气科技有限公司 | EPS power cabinet |
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| CN110011404A (en) | 2019-07-12 |
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