CN118116752A - Series-parallel change-over switch and graphitizing furnace rectifying system - Google Patents

Series-parallel change-over switch and graphitizing furnace rectifying system Download PDF

Info

Publication number
CN118116752A
CN118116752A CN202410188330.1A CN202410188330A CN118116752A CN 118116752 A CN118116752 A CN 118116752A CN 202410188330 A CN202410188330 A CN 202410188330A CN 118116752 A CN118116752 A CN 118116752A
Authority
CN
China
Prior art keywords
contact
movable
seat
butt joint
guide rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410188330.1A
Other languages
Chinese (zh)
Inventor
夏湘滨
夏付却
阳典意
陈森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Huaxia Tebian Co ltd
Original Assignee
Hunan Huaxia Tebian Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Huaxia Tebian Co ltd filed Critical Hunan Huaxia Tebian Co ltd
Priority to CN202410188330.1A priority Critical patent/CN118116752A/en
Publication of CN118116752A publication Critical patent/CN118116752A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/20—Graphite
    • C01B32/205—Preparation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

The invention discloses a serial-parallel connection change-over switch and a graphitizing furnace rectifying system, which comprise a frame body, wherein a driving mechanism, a first fixed contact, a second fixed contact, a first movable contact and a second movable contact are arranged on the frame body, the driving mechanism comprises a first movable seat and a second movable seat, a first butt joint plate and a second butt joint plate are respectively arranged on two sides of the first movable seat, and a third butt joint plate and a fourth butt joint plate are respectively arranged on two sides of the second movable seat. According to the invention, the first butt joint plate and the second butt joint plate are respectively and elastically connected with the first movable seat, the third butt joint plate and the fourth butt joint plate are respectively and elastically connected with the second movable seat, and when the driving mechanism loses power, the service life of the first movable contact, the second movable contact, the first fixed contact and the second fixed contact structure and the stability of electric connection between the movable contact and the fixed contact or between the two movable contacts are effectively improved by utilizing the buffer distance generated by elastic deformation of the elastic connection structure between the movable seat and the butt joint plate.

Description

Series-parallel change-over switch and graphitizing furnace rectifying system
Technical Field
The invention relates to the technical field of power supply equipment, in particular to a series-parallel connection change-over switch and a graphitizing furnace rectifying system.
Background
When the existing graphitizing furnace is operated, the problem that the unit power consumption (kW.h/t) of graphitized finished products is too high exists. Through analysis, the main reason for the problem is that the direct current no-load voltage design of the rectifier transformer system is too low, so that the furnace resistance can not be quickly reduced in the early stage or even in the middle stage of graphitization, the ideal power transmission-time curve is not met, the power transmission time from the early stage to the middle stage is greatly prolonged, and therefore, part of active power consumption is caused in the process of accumulating the furnace temperature, and the graphitization ton power consumption is increased.
Therefore, the existing old rectifier transformer reserves a simple manual serial-parallel connection interface to increase the voltage, as shown in fig. 1, and needs 3 independent switches to realize, but the existing old serial-parallel connection switch has the disadvantages of complex operation, long time and more devices during serial-parallel connection switching, greatly improves the accident rate, and causes great waste on time manpower and material resources.
However, the existing contact point and contact point connection have a disadvantage that the contact point is worn in a frequent switching state, thereby being unfavorable for the improvement of the service life of the contact point and the stability of connection.
Therefore, it is needed to provide a series-parallel switch and a graphitization furnace rectifying system to solve the above-mentioned problems.
Disclosure of Invention
First, the technical problem to be solved
Based on the abrasion, the invention provides a series-parallel connection change-over switch and a graphitization furnace rectifying system, which effectively overcomes the abrasion of contact points of the prior series-parallel connection change-over switch when the series-parallel connection change-over switch is performed, and is beneficial to the improvement of the service life of the contact points and the stability of connection.
(II) technical scheme
In order to solve the technical problems, the invention provides a series-parallel connection change-over switch, which comprises a frame body, wherein a driving mechanism, a first fixed contact, a second fixed contact, a first movable contact and a second movable contact are arranged on the frame body, the driving mechanism comprises a first movable seat and a second movable seat, a first butt joint plate and a second butt joint plate are respectively arranged on two sides of the first movable seat, a third butt joint plate and a fourth butt joint plate are respectively arranged on two sides of the second movable seat, the first butt joint plate and the second butt joint plate are respectively and elastically connected with the first movable seat, the third butt joint plate and the fourth butt joint plate are respectively and elastically connected with the second movable seat, the first movable contact is correspondingly arranged on the first butt joint plate and the second butt joint plate, the second movable contact is correspondingly arranged on the third butt joint plate and the fourth butt joint plate, and the first fixed contact and the second fixed contact are respectively arranged on two sides of the driving mechanism;
When the first movable seat and the second movable seat do back movement, the first butt joint plate drives the first movable contact to be connected with the first fixed contact, and the third butt joint plate drives the second movable contact to be connected with the second fixed contact; or (b)
When the first movable seat and the second movable seat move in opposite directions, the first movable contact driven by the second butt plate is connected with the second movable contact driven by the fourth butt plate.
Further, a first guide rod is arranged between the first butt joint plate and the first movable seat, one end of the first guide rod is connected with the first butt joint plate, and the other end of the first guide rod penetrates through the first movable seat; a second guide rod is arranged between the second butt joint plate and the first movable seat, one end of the second guide rod is connected with the second butt joint plate, and the other end of the second guide rod penetrates through the first movable seat; a third guide rod is arranged between the third butt joint plate and the second movable seat, one end of the third guide rod is connected with the third butt joint plate, and the other end of the third guide rod penetrates through the second movable seat; a fourth guide rod is arranged between the fourth butt joint plate and the second movable seat, one end of the fourth guide rod is connected with the fourth butt joint plate, and the other end of the fourth guide rod penetrates through the second movable seat; elastic pieces are sleeved on the first guide rod, the second guide rod, the third guide rod and the fourth guide rod.
Further, guide holes are formed in the first moving seat and the second moving seat, and the first guide rod, the second guide rod, the third guide rod and the fourth guide rod penetrate through the corresponding guide holes respectively; the first movable seat comprises a first substrate and a second substrate which are connected, the second movable seat comprises a third substrate and a fourth substrate which are connected, the first substrate and the second substrate are arranged in parallel, the third substrate and the fourth substrate are arranged in parallel, a plurality of guide holes are respectively formed in the first substrate, the second substrate, the third substrate and the fourth substrate, the first guide rod penetrates through the first substrate to be arranged, the second guide rod penetrates through the second substrate to be arranged, the third guide rod penetrates through the third substrate to be arranged, and the fourth guide rod penetrates through the fourth substrate to be arranged.
Further, a first fixing seat is arranged on the first movable seat, a second fixing seat is arranged on the second movable seat, the first substrate and the second substrate are connected and arranged through the first fixing seat, and the third substrate and the fourth substrate are connected and arranged through the second fixing seat.
Further, the frame body comprises a supporting frame, the driving mechanism is arranged on the supporting frame, a containing space is formed by surrounding the supporting frame, the first movable seat and the second movable seat are both arranged in the containing space, the first stationary contact is arranged on one side of the first butt joint plate and far away from the second butt joint plate, and the second stationary contact is arranged on one side of the third butt joint plate and far away from the fourth butt joint plate; the driving mechanism further comprises a driving piece, wherein two ends of the driving piece are respectively connected with the first movable seat and the second movable seat and used for driving the first movable seat and the second movable seat to do back movement or opposite movement.
Further, the driving mechanism further comprises a first supporting piece and a second supporting piece, supporting grooves are formed in two sides of the supporting frame respectively, the first supporting piece and the second supporting piece are of supporting rod structures, one end of the first supporting piece and one end of the second supporting piece are respectively arranged in the supporting grooves, the other end of the first supporting piece is connected with the first movable seat, and the other end of the second supporting piece is connected with the second movable seat.
Further, a limiting mechanism is arranged on the support frame along the movement direction of the first moving seat and the second moving seat, and comprises two limiting blocks which are respectively arranged on the movement tracks of the first moving seat and the second moving seat; the first moving seat faces one side of the supporting frame, a first moving stop block is arranged on one side of the supporting frame, the second moving seat faces one side of the supporting frame, a second moving stop block is arranged on one side of the supporting frame, gaps exist between the first moving stop block and the second moving stop block and between the first moving stop block and the second moving stop block respectively.
Further, the first stationary contact and the second stationary contact are both conductive sheet structures, the first movable contact is a first conductive sleeve which is arranged in an insulating manner with the first abutting plate and the second abutting plate, the second movable contact is a second conductive sleeve which is arranged in an insulating manner with the third abutting plate and the fourth abutting plate, the first conductive sleeve and the second conductive sleeve are both provided with a first contact portion and a second contact portion, the first contact portion of the first conductive sleeve is arranged on one side of the first abutting plate, the second contact portion of the first conductive sleeve is arranged on one side of the second abutting plate, the first contact portion of the second conductive sleeve is arranged on one side of the third abutting plate, the second contact portion of the second conductive sleeve is arranged on one side of the fourth abutting plate, and the second contact portion of the first conductive sleeve and the second contact portion of the second conductive sleeve are arranged opposite to each other.
Further, the first conductive sleeve and the second conductive sleeve are provided with arc-shaped parts, and the arc-shaped parts are connected with the corresponding first contact part and second contact part; the first conductive sleeve and the second conductive sleeve are respectively provided with a connecting part, and the connecting parts extend from the corresponding first contact part and second contact part.
The invention provides a graphitizing furnace rectifying system, which comprises a graphitizing furnace and a special transformer, wherein the special transformer comprises a transformer unit and a rectifier cabinet unit, and is characterized in that a first series-parallel connection change-over switch is arranged between the transformer unit and the graphitizing furnace, and a second series-parallel connection change-over switch is arranged between the rectifier cabinet unit and the graphitizing furnace, wherein the series-parallel connection change-over switch is adopted by the first series-parallel connection change-over switch structure and the second series-parallel connection change-over switch structure;
The positive electrode output end of the transformer unit is connected with the first movable contact of the first series-parallel connection change-over switch, the negative electrode output end of the transformer unit is connected with the second movable contact of the first series-parallel connection change-over switch, and the first fixed contact and the second fixed contact of the first series-parallel connection change-over switch are respectively connected with the positive electrode input end and the negative electrode input end of the graphitization furnace;
The positive electrode output end of the rectifying cabinet unit is connected with the first movable contact of the second series-parallel connection change-over switch, the negative electrode output end of the rectifying cabinet unit is connected with the second movable contact of the second series-parallel connection change-over switch, and the first fixed contact and the second fixed contact of the second series-parallel connection change-over switch are respectively connected with the positive electrode input end and the negative electrode input end of the graphitizing furnace.
(III) beneficial effects
Compared with the prior art, the serial-parallel connection change-over switch comprises a frame body, wherein a driving mechanism, a first fixed contact, a second fixed contact, a first movable contact and a second movable contact are arranged on the frame body, the driving mechanism comprises a first movable seat and a second movable seat, a first butt joint plate and a second butt joint plate are respectively arranged on two sides of the first movable seat, a third butt joint plate and a fourth butt joint plate are respectively arranged on two sides of the second movable seat, the first butt joint plate and the second butt joint plate are respectively and elastically connected with the first movable seat, the third butt joint plate and the fourth butt joint plate are respectively and elastically connected with the second movable seat, the first movable contact is correspondingly arranged on the first butt joint plate and the second butt joint plate, the second movable contact is correspondingly arranged on the third butt joint plate and the fourth butt joint plate, and the first fixed contact and the second movable contact are respectively arranged on two sides of the driving mechanism; according to the series-parallel connection change-over switch and the graphitizing furnace rectifying system, the first movable contact is in a state of continuously pressing the first stationary contact when the first movable contact is in butt joint with the first stationary contact, the second movable contact is in a state of continuously pressing the second stationary contact when the second movable contact is in butt joint with the second stationary contact, and the corresponding butt joint plates of the first movable contact and the second movable contact can still continuously press the first stationary contact and the second stationary contact under the action of the restoring force of the elastic connection structure when the driving mechanism loses power by utilizing the buffer distance generated by elastic deformation of the elastic connection structure between the movable seat and the butt joint plates; or when the first movable seat and the second movable seat move oppositely, the first movable contact and the second movable contact are in a mutually continuous compression state, and when the driving mechanism loses power, the abutting plates corresponding to the first movable contact and the abutting plates corresponding to the second movable contact can still mutually continuously compress under the action of the restoring force of the elastic connection structure, so that the service life of the first movable contact, the second movable contact, the first fixed contact and the second fixed contact structure and the stability of electric connection between the movable contact and the fixed contact or between the two movable contacts are effectively improved.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and should not be construed as limiting the invention in any way, in which:
FIG. 1 is a schematic diagram of a prior art series-parallel switch;
FIG. 2 is a schematic diagram of a series-parallel switch according to a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of a frame in a serial-parallel switch according to a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a hidden frame of a serial-parallel switch according to a preferred embodiment of the present invention;
FIG. 5 is a schematic diagram of the structure of the first movable base in the serial-parallel switch according to the preferred embodiment of the present invention;
FIG. 6 is a schematic diagram of the structure of the first movable base in the serial-parallel switch according to the preferred embodiment of the present invention;
FIG. 7 is a schematic diagram showing another structure of the first support member or the second support member in the series-parallel connection switching switch according to the preferred embodiment of the present invention;
FIG. 8 is a schematic circuit diagram of the graphitizing furnace rectification system of the preferred embodiment of the present invention in a parallel mode of operation;
FIG. 9 is a schematic circuit diagram of a graphitization furnace rectification system in accordance with a preferred embodiment of the present invention in a first series mode of operation;
fig. 10 is a schematic circuit diagram of the graphitization furnace rectification system of the preferred embodiment of the present invention in a second series operation mode.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection may be mechanical connection, electrical connection, direct connection, indirect connection through an intermediate medium, communication between two elements, or "transmission connection", i.e. power connection by various suitable means such as belt transmission, gear transmission or sprocket transmission. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 2 to 6, the embodiment of the invention discloses a series-parallel connection switch, which comprises a frame 100, wherein a driving mechanism 200, a first stationary contact 300, a second stationary contact 400, a first movable contact 500 and a second movable contact 600 are arranged on the frame 100, the driving mechanism 200 comprises a first movable seat 210 and a second movable seat 220, two sides of the first movable seat 210 are respectively provided with a first abutting plate 230 and a second abutting plate 240, two sides of the second movable seat 220 are respectively provided with a third abutting plate 250 and a fourth abutting plate 260, the first abutting plate 230 and the second abutting plate 240 are respectively and elastically connected with the first movable seat 210, the third abutting plate 250 and the fourth abutting plate 260 are respectively and elastically connected with the second movable seat 220, the first movable contact 500 is correspondingly arranged on the first abutting plate 230 and the second abutting plate 240, the second movable contact 600 is correspondingly arranged on the third abutting plate 250 and the fourth abutting plate 260, the first stationary contact 300 and the second stationary contact 400 are respectively arranged on two sides of the driving mechanism 200, in particular, the first abutting plate 300 and the second abutting plate 400 are respectively arranged on one side of the third abutting plate 230 and the third abutting plate 400.
When the first moving seat 210 and the second moving seat 220 move back to each other, the first abutting plate 230 drives the first movable contact 500 to connect with the first stationary contact 300, and the third abutting plate 250 drives the second movable contact 600 to connect with the second stationary contact; or (b)
When the first moving seat 210 and the second moving seat 220 move in opposite directions, the first moving contact 500 driven by the second butt plate 240 is connected with the second moving contact 600 driven by the fourth butt plate 260.
According to the invention, the first butt joint plate 230 and the second butt joint plate 240 are respectively and elastically connected with the first movable seat 210, the third butt joint plate 250 and the fourth butt joint plate 260 are respectively and elastically connected with the second movable seat 220, the buffer distance generated by elastic deformation of the elastic connection structure between the movable seat and the butt joint plate is utilized, when the first movable seat 210 and the second movable seat 220 do back movement, the first movable contact 500 is in a state of continuously pressing the first fixed contact 300 when the first movable contact 500 is in butt joint with the first fixed contact 300, the second movable contact 600 is in a state of continuously pressing the second fixed contact 400 when the second movable contact 600 is in butt joint with the second fixed contact 400, and when the driving mechanism 200 loses power, the butt joint plates corresponding to the first movable contact 500 and the second movable contact 600 can still continuously press the first fixed contact 300 and the second fixed contact 400 under the action of the restoring force of the elastic connection structure; or when the first moving seat 210 and the second moving seat 220 move oppositely, the first moving contact 500 and the second moving contact 600 are in a mutually continuous compression state when in butt joint, when the driving mechanism 200 loses power, the butt joint plates corresponding to the first moving contact 500 and the butt joint plates corresponding to the second moving contact 600 can still mutually continuously compress under the action of the restoring force of the elastic connection structure, so that the service life of the structures of the first moving contact 500, the second moving contact 600, the first fixed contact 300 and the second fixed contact 400 and the stability of the electric connection between the moving contact and the fixed contact or between the two moving contacts are effectively improved.
In one embodiment, a first guide rod 201 is disposed between the first butt plate 230 and the first movable seat 210, one end of the first guide rod 201 is connected to the first butt plate 230, and the other end of the first guide rod 201 is disposed through the first movable seat 210; a second guide rod 202 is arranged between the second butt plate 240 and the first movable seat 210, one end of the second guide rod 202 is connected with the second butt plate 240, and the other end of the second guide rod 202 penetrates through the first movable seat 210; a third guide rod 203 is arranged between the third butt plate 250 and the second movable seat 220, one end of the third guide rod 203 is connected with the third butt plate 250, and the other end of the third guide rod 203 penetrates through the second movable seat 220; a fourth guide rod 204 is arranged between the fourth butt joint plate 260 and the second movable seat 220, one end of the fourth guide rod 204 is connected with the fourth butt joint plate 260, and the other end of the fourth guide rod 204 penetrates through the second movable seat 220; elastic pieces 205 are sleeved on the first guide rod 201, the second guide rod 202, the third guide rod 203 and the fourth guide rod 204, and the guide rods are used for guaranteeing the stability of the connection of the abutting plates and the movable seat, and in addition, the supporting effect of the first abutting plate 230, the second abutting plate 240, the third abutting plate 250 and the fourth abutting plate 260 is respectively realized; further, the first moving seat 210 and the second moving seat 220 are respectively provided with a guide hole 207, and the first guide rod 201, the second guide rod 202, the third guide rod 203 and the fourth guide rod 204 respectively penetrate through the corresponding guide holes 207, and the elastic piece 205 is in a spring structure.
Specifically, the first moving seat 210 includes a first substrate 211 and a second substrate 212 that are connected, the second moving seat 220 includes a third substrate 221 and a fourth substrate 222 that are connected, the first substrate 211 and the second substrate 212 are arranged in parallel, the third substrate 221 and the fourth substrate 222 are arranged in parallel, a plurality of guide holes 207 are respectively formed on the first substrate 211, the second substrate 212, the third substrate 221 and the fourth substrate 222, the first guide rod 201 penetrates through the first substrate 211, the second guide rod 202 penetrates through the second substrate 212, the third guide rod 203 penetrates through the third substrate 221, and the fourth guide rod 204 penetrates through the fourth substrate 222, so as to ensure the stability of the connection between the butt joint plates and the substrates, and simultaneously realize the supporting effect on each butt joint plate.
In one embodiment, the frame body 100 includes a supporting frame 110, the driving mechanism 200 is disposed on the supporting frame 110, the supporting frame 110 encloses a receiving space 111, the first moving seat 210 and the second moving seat 220 are disposed in the receiving space 111, the first stationary contact 300 is disposed on one side of the first butt-joint plate 230 and far from the second butt-joint plate 240, and the second stationary contact 400 is disposed on one side of the third butt-joint plate 250 and far from the fourth butt-joint plate 260; the driving mechanism 200 further includes a driving member 270, where two ends of the driving member 270 are respectively connected to the first moving seat 210 and the second moving seat 220, so as to drive the first moving seat 210 and the second moving seat 220 to move back or forth, so as to achieve the contact effect of the first moving contact 500 with the first stationary contact 300, the contact effect of the second moving contact 600 with the second stationary contact 400, or the contact effect of the first moving contact 500 with the second moving contact 600.
In this embodiment, the driving member 270 is configured as a driving cylinder, however, in other embodiments, a screw driving device, a hydraulic driving device, etc. may be used, which will not be described herein; in order to improve the driving efficiency of the first moving seat 210 and the second moving seat 220, the driving members 270 are arranged in pairs, that is, two driving members 270 are respectively disposed at two sides of the first moving seat 210 or two driving members 270 are respectively disposed at two sides of the second moving seat 220, and the operation of the opposite movement or the opposite movement of the first moving seat 210 and the second moving seat 220 is realized by using a dual-power system.
In one embodiment, a first fixing seat 213 is disposed on the first moving seat 210, a second fixing seat 223 is disposed on the second moving seat 220, two ends of the driving member 270 are respectively fixed on the first fixing seat 213 and the second fixing seat 223, the first substrate 211 and the second substrate 212 are connected by the first fixing seat 213, and the third substrate 221 and the fourth substrate 222 are connected by the second fixing seat 223; specifically, the first fixing base 213 and the second fixing base 223 include a base 208, and the first substrate 211 and the second substrate 212 are respectively connected to two ends of the base 208, so that the first substrate 211 and the second substrate 212 can move synchronously; the third substrate 221 and the fourth substrate 222 are respectively connected with two ends of the other base 208, so that the third substrate 221 and the fourth substrate 222 can move synchronously; a connecting groove 2081 is formed in one side of the seat body 208, a connecting rod 2082 is arranged in the connecting groove 2081, connecting blocks 271 are arranged at two ends of the driving piece 270, and the connecting rod 2082 penetrates through the connecting blocks 271, so that two ends of the driving piece 270 are respectively fixed on the first movable seat 210 and the second movable seat 220; the telescopic operation of the driving member 270 enables the first moving seat 210 and the second moving seat 220 to approach or separate from each other, thereby realizing the operation of the opposite movement or the backward movement of the first moving seat 210 and the second moving seat 220.
By arranging the first fixing base 213, the first aspect makes the first substrate 211 and the second substrate 212 have a space therebetween, so that the lengths of the first guide rod 201 and the second guide rod 202 protruding out of the guide hole 207 can be conveniently changed without being blocked, and the second aspect realizes the fixation of the first substrate 211 and the second substrate 212; in the third aspect, the space between the first substrate 211 and the second substrate 212 is free from line of sight obstruction, so that the running states of the first guide rod 201 and the second guide rod 202 can be conveniently observed.
In one embodiment, the first stationary contact 300 and the second stationary contact 400 are both configured of a conductive sheet 301/401 insulated from the supporting frame 110, one end of the conductive sheet 301/401 is located at the inner side of the supporting frame 110, and the other end of the conductive sheet 301/401 extends from the supporting frame 110 and is used for connecting with the positive input end or the negative input end of the graphitizing furnace 700; specifically, the first insulating plates 120 are fixedly disposed on the two inner sides of the supporting frame 110, and the conductive plates 301 corresponding to the first stationary contact 300 and the conductive plates 401 corresponding to the second stationary contact 400 are fixedly disposed on the two first insulating plates 120, respectively, so as to avoid the conductive plates 301/401 being conducted to the supporting frame 110 after being electrified to affect the use effect of the present invention.
In one embodiment, the first movable contact 500 is a first conductive sleeve insulated from the first butt plate 230 and the second butt plate 240, the second movable contact 600 is a second conductive sleeve insulated from the third butt plate 250 and the fourth butt plate 260, the first conductive sleeve and the second conductive sleeve are respectively provided with two contact parts, namely a first contact part 510/610 and a second contact part 520/620, the first contact part 510 and the second contact part 520 of the first conductive sleeve are respectively arranged at two sides of the first movable seat 210, and the first contact part 610 and the second contact part 620 of the second conductive sleeve are respectively arranged at two sides of the second movable seat 220; specifically, the first contact portion 510 of the first conductive sleeve is disposed on one side of the first abutment plate 230 through the locking member, the second contact portion 520 of the first conductive sleeve is disposed on one side of the second abutment plate 240 through the locking member, the first contact portion 610 of the second conductive sleeve is disposed on one side of the third abutment plate 250, the second contact portion 620 of the second conductive sleeve is disposed on one side of the fourth abutment plate 260, and the second contact portion 520 of the first conductive sleeve is disposed opposite to the second contact portion 620 of the second conductive sleeve, thereby facilitating the abutting contact of the first conductive sleeve and the second conductive sleeve with each other; wherein, the locking piece is of a bolt structure.
Further, a second insulating plate 209 is fixedly disposed on one side of the first butt-joint plate 230 and one side of the second butt-joint plate 240 respectively, specifically, a plurality of second insulating plates 209 are respectively enclosed on the periphery of the first movable seat 210 and the periphery of the second movable seat 220, and a first contact portion 510 and a second contact portion 520 of the first conductive sleeve are respectively disposed on one side of the corresponding second insulating plate 209, so as to realize insulation between the first conductive sleeve and the first butt-joint plate 230 and the second butt-joint plate 240, and prevent the first conductive sleeve from being conducted onto the first butt-joint plate 230 and the second butt-joint plate 240 after being electrified, thereby affecting the use effect of the invention; the first contact portion 610 and the second contact portion 620 of the second conductive sleeve are respectively disposed on one side of the corresponding second insulating plate 209, so as to realize insulation between the second conductive sleeve and the third and fourth butt joint plates 250 and 260, so as to avoid the influence of the second conductive sleeve 501 on the third and fourth butt joint plates 250 and 260 after being electrified.
In the present application, the first, second, third and fourth butt plates 230, 240, 250 and 260 can be made of insulating materials, and the insulating arrangement with the first and second conductive sleeves can be realized by directly utilizing the insulating properties of the first, second, third and fourth butt plates 230, 240, 250 and 260 without adding the second insulating plate 209.
In one embodiment, the first conductive sleeve and the second conductive sleeve are provided with arc-shaped portions 530/630, the arc-shaped portions 530/630 are connected with the corresponding first contact portions 510/610 and second contact portions 520/620, and the arc-shaped portions 530/630 are arranged above the first movable seat 210 and the second movable seat 220 to achieve the supporting effect of the first conductive sleeve and the second conductive sleeve, so that the stability of the first conductive sleeve and the second conductive sleeve fixed on the first movable seat 210 and the second movable seat 220 respectively is improved; in addition, when the driving member 270 drives the first moving seat 210 and the second moving seat 220 to move back, the two contact portions of the first conductive sleeve and the two contact portions of the second conductive sleeve are away from each other, the first conductive sleeve and the second conductive sleeve are in an extended state, and the first conductive sleeve and the second conductive sleeve have buffer structures with more arc portions, so that the shape changes of other parts of the first conductive sleeve and the second conductive sleeve due to the extension are reduced by using the obvious deformation generated by the arc portions, and the damage to the structural body caused when the first conductive sleeve and the second conductive sleeve are in the extended state is avoided.
In one embodiment, the first conductive sleeve and the second conductive sleeve are provided with connection parts 540/640, and the connection parts 540/640 extend from the corresponding first contact parts 510/610 and second contact parts 520/620 and are used for connecting with the positive electrode input end or the negative electrode input end of the external electrical equipment; specifically, the connection parts 540/640 are of a sheet structure, the first conductive sleeve is fixedly connected to one connection end of the external electric device by using the connection parts 540 extended from the first contact part 510 and the second contact part 520, and the second conductive sleeve is fixedly connected to the other connection end of the external electric device by using the connection parts 640 extended from the first contact part 610 and the second contact part 620; further, the connection portion 540/640 is provided with a fixing hole, and the first conductive sleeve and the second conductive sleeve are fixedly connected with the connection end of the external electrical device respectively through the fixing hole by a screw member, so that the first conductive sleeve and the second conductive sleeve can be conveniently powered.
In one embodiment, the upper and lower ends of the first moving seat 210 and the second moving seat 220 are respectively provided with the third insulating plate 206, so as to realize the insulation between the arc-shaped portion 530 and the connecting portion 540 of the first conductive sleeve and the first moving seat 210, and the insulation between the arc-shaped portion 630 and the connecting portion 640 of the second conductive sleeve and the second moving seat 220, so as to avoid the effect of the present invention being affected by the arc-shaped portion and the connecting portion of the first conductive sleeve being conducted onto the first moving seat 210 after being electrified, and to avoid the effect of the present invention being affected by the arc-shaped portion and the connecting portion of the second conductive sleeve being conducted onto the second moving seat 220 after being electrified.
In the present application, the first moving seat 210 and the second moving seat 220 can be made of insulating materials, and the third insulating plate 206 is not required to be additionally arranged, but the insulating properties of the first moving seat 210 and the second moving seat 220 can be directly utilized to realize the insulating arrangement with the first conductive sleeve and the second conductive sleeve.
In one embodiment, the first conductive sleeve and the second conductive sleeve are of copper soft belt structures formed by overlapping multiple layers of copper foils, so that structural integrity and performance integrity of the first conductive sleeve and the second conductive sleeve can be guaranteed while the first conductive sleeve and the second conductive sleeve deform.
In one embodiment, the driving mechanism 200 further includes a first supporting member 280 and a second supporting member 290, wherein a portion of the first supporting member 280 and a portion of the second supporting member 290 are connected with the supporting frame 110, another portion of the first supporting member 280 is connected with the first moving seat 210, and another portion of the second supporting member 290 is connected with the second moving seat 220, so that the supporting frame 110 can support the first moving seat 210 and the second moving seat 220.
Specifically, the supporting grooves 112 are respectively formed on two sides of the supporting frame 110, the first supporting member 280 and the second supporting member 290 are in a supporting rod structure, one end of the first supporting member 280 and one end of the second supporting member 290 are respectively disposed in the supporting grooves 112, the other end of the first supporting member 280 is connected with the first movable seat 210, the other end of the second supporting member 290 is connected with the second movable seat 220, and two ends of the matched driving member 270 are respectively connected with the first movable seat 210 and the second movable seat 220, so that the first supporting member 280 and the second supporting member 290 jointly form a supporting effect on the first movable seat 210, the second movable seat 220 and the driving member 270, and the supporting effect on the first movable seat 210 and the second movable seat 220 is realized by the supporting frame 110 due to the fact that the first supporting member 280 and the second supporting member 290 are clamped in the supporting grooves 112 of the supporting frame 110.
As shown in fig. 7, alternatively, a supporting rail is disposed on the supporting frame 110, the first supporting member 280 and the second supporting member 290 are disposed on the supporting rail, and when the driving member 270 drives the first moving seat 210 and the second moving seat 220 to move back or forth along the supporting rail, the first supporting member 280 and the second supporting member 290 also synchronously move back or forth along the supporting rail.
Further, to improve the stability of supporting the first moving seat 210 and the second moving seat 220, the supporting sliding rails, the first supporting members 280 and the second supporting members 290 are arranged in pairs, and the two first supporting members 280 are longitudinally arranged at two sides of the first moving seat 210, so that the first moving seat 210 is stably placed in the accommodating space 111; the second supporting members 290 are longitudinally disposed at both sides of the second moving seat 220, thereby stably placing the second moving seat 220 in the receiving space 111.
In other embodiments, the first supporting member 280 and the second supporting member 290 can be also disposed below the first moving seat 210 and the second moving seat 220, and the supporting rail is also disposed below the first moving seat 210 and the second moving seat 220 synchronously, so as to cooperate with the first supporting member 280 and the second supporting member 290 to realize the supporting operation of the first moving seat 210 and the second moving seat 220.
In one embodiment, the supporting frame 110 is provided with a limiting mechanism 130 along the movement direction of the first moving seat 210 and the second moving seat 220, the limiting mechanism 130 is used for limiting the movement displacement of the first moving seat 210 and the second moving seat 220, so as to prevent the first supporting member 280 and the second supporting member 290 connected with the base 203 from being separated from the supporting groove 112 after the first moving seat 210 and the second moving seat 220 excessively displace along with the retracting operation of the driving member 270, and further enable the first supporting member 280 and the second supporting member 290 to stably realize the supporting operation of the first moving portion 210 and the second moving portion 220.
Further, the limiting mechanism 130 includes two limiting blocks 131, and the two limiting blocks 131 are respectively disposed on the moving tracks of the first moving seat 210 and the second moving seat 220, so as to effectively limit the moving displacement of the first moving seat 210 and the second moving seat 220, prevent the first supporting member 280 and the second supporting member 290 from being separated from the supporting groove 112 after the first moving seat 210 and the second moving seat 220 excessively displace, and effectively ensure the stable supporting operation of the first supporting member 280 and the second supporting member 290 on the first moving portion 210 and the second moving portion 220.
Specifically, the first moving seat 210 is provided with a first moving stop block 214 towards one side of the supporting frame 110, the second moving seat 220 is provided with a second moving stop block 224 towards one side of the supporting frame 110, and gaps exist between the first moving stop block 214 and the second moving stop block 224 and the supporting frame 110, so that friction between the first moving stop block 214 and the second moving stop block 224 is avoided, the two limiting blocks 131 are respectively arranged between the first moving stop block 214 and the second moving stop block 224, so that the two limiting blocks 131 are positioned on the moving tracks of the first moving seat 210 and the second moving seat 220, limitation of the moving displacement of the first moving seat 210 and the second moving seat 220 is effectively realized, and the first supporting piece 280 and the second supporting piece 290 are prevented from being separated from the supporting groove 112 after the first moving seat 210 and the second moving seat 220 are excessively displaced, so that stable supporting operations of the first supporting piece 280 and the second supporting piece 290 on the first moving part 210 and the second moving part 220 are effectively ensured.
Taking the example that the supporting grooves 112 are formed on two sides of the supporting frame 110 to achieve the supporting effect on the first moving seat 210 and the second moving seat 220, the specific working process of the present invention is as follows.
When the driving member 270 performs the extending operation, the first supporting member 280 and the second supporting member 290 slide in the corresponding supporting slot 112, and the first moving seat 210 and the second moving seat 220 move back to each other; taking the moving process of the first moving seat 210 as an example, the first moving seat 210 moves towards the conductive plate 301 on the corresponding side, and the first moving seat 210 moves to drive the first abutting plate 230 connected with the first moving seat to move towards the conductive plate 301 on the corresponding side, when the first abutting plate 230 contacts with the conductive plate 301, if the first moving seat 210 is still in a moving state, at this time, the elastic member 205 between the first moving seat 210 and the first abutting plate 230 is in a compressed state, and at the same time, the first guide rod 201 protrudes out of the guide hole 207 for a distance consistent with the compressed length of the elastic member 205, so that the buffer distance generated by elastic deformation of the elastic member 205 and the movable structure of the first guide rod 201 in the guide hole 207 enable the first abutting plate 230 to be in a state of continuously compressing the conductive plate 301 when the first abutting plate 230 abuts against the conductive plate 301, and when the driving member 270 loses power, the first abutting plate 230 corresponding to the first movable contact 500 can still continuously compress the conductive plate 301 under the restoring force of the elastic member 205, thereby effectively improving the stability of the electrical connection between the first movable contact 500 and the first movable contact 300.
The moving process of the second moving seat 220 is the same as that of the first moving seat 210, the second moving seat 220 moves towards the conductive sheet 401 on the corresponding side, the second moving seat 220 moves to drive the third butt plate 250 connected with the second moving seat to move towards the conductive sheet 401 on the corresponding side, when the third butt plate 250 contacts with the conductive sheet 401, if the second moving seat 220 is still in a moving state, at this time, the elastic member 205 between the second moving seat 220 and the third butt plate 250 is in a compressed state, and meanwhile, the third guide rod 203 protrudes out of the guide hole 207 for a distance consistent with the compressed length of the elastic member 205, so that the third butt plate 250 is in a state of continuously compressing the conductive sheet 401 when the third butt plate 250 is in butt joint with the conductive sheet 401 due to the buffer distance generated by elastic deformation of the elastic member 205 and the movable structure of the third guide rod 203 in the guide hole 207, and when the driving member 270 loses power, the third butt plate 250 corresponding to the second movable contact 600 can still compress the conductive sheet 401 under the restoring force of the elastic member 205, and further the stability of the second movable contact 600 can be continuously improved.
When the driving member 270 retracts, the first supporting member 280 and the second supporting member 290 slide in the corresponding supporting slot 112, the first moving seat 210 and the second moving seat 220 move towards the conductive plate 301/401 far away from the corresponding side, the first movable contact 500 is separated from the first stationary contact 300, the second movable contact 600 is separated from the second stationary contact 400, and the first abutting plate 230 and the third abutting plate 250 return to the initial assembly position under the restoring force of the elastic member 205, and wait for the next contact procedure of the movable contact and the stationary contact; the first moving seat 210 and the second moving seat 220 move in opposite directions, and synchronously drive the second abutting plate 240 and the fourth abutting plate 260 which are arranged on the first moving seat 210 and the second moving seat 220 in opposite directions to each other, when the two abutting plates are contacted, if the first moving seat 210 and the second moving seat 220 are still in a moving state, at this time, the elastic piece 205 between the first moving seat 210 and the second abutting plate 240 and the elastic piece 205 between the second moving seat 220 and the fourth abutting plate 260 are in a compressed state, the second guide rod 202 and the fourth guide rod 204 extend out of the guide hole 207 for a certain distance, and the distance is consistent with the compressed length of the elastic piece 205, so that the second abutting plate 240 and the fourth abutting plate 260 are in a state of being continuously compressed with each other through the buffer distance generated by elastic deformation of the elastic piece 205 and the movable structure of the second guide rod 202 and the fourth guide rod 204 in the guide hole 207, and when the driving piece 270 loses the power, the elastic piece 205 and the second abutting plate 240 and the fourth abutting plate 260 corresponding to the first movable contact 500 still continuously compress the second contact 600 under the action of the elastic piece 600, and the effective restoring force of the second contact point 600 can still be improved.
According to the serial-parallel connection change-over switch, the first butt joint plate 230 and the second butt joint plate 240 are respectively connected with the first movable seat 210 through the first guide rod 201 and the second guide rod 202, the third butt joint plate 250 and the fourth butt joint plate 260 are respectively connected with the second movable seat 220 through the third guide rod 203 and the fourth guide rod 204, elastic pieces 205 are sleeved on the first guide rod 201, the second guide rod 202, the third guide rod 203 and the fourth guide rod 204 in a matched manner, and by utilizing the buffer distance effect generated by elastic deformation of the elastic pieces 205, when the first movable seat 210 and the second movable seat 220 do back movement, the first movable contact 500 is in a state of continuously pressing the first fixed contact 300, and when the second movable contact 600 and the second fixed contact 400 are in a state of continuously pressing the second fixed contact 400, when the driving mechanism 200 is powered, the corresponding butt joint plate of the first movable contact 500 and the corresponding butt joint plate of the second movable contact 600 lose the first movable contact 300 under the action of the elastic pieces and the second movable contact 400 still continuously press; or when the first moving seat 210 and the second moving seat 220 move oppositely, the first moving contact 500 and the second moving contact 600 are in a mutually continuous compression state when in butt joint, when the driving mechanism 200 loses power, the butt joint plates corresponding to the first moving contact 500 and the butt joint plates corresponding to the second moving contact 600 can still mutually continuously compress under the action of the restoring force of the elastic piece 205, so that the service life of the structures of the first moving contact 500, the second moving contact 600, the first fixed contact 300 and the second fixed contact 400 and the stability of the electric connection between the moving contact and the fixed contact or between the two moving contacts are effectively improved.
Example two
The series-parallel connection change-over switch in the first embodiment can be applied to a graphitizing furnace rectifying system, the graphitizing furnace rectifying system comprises a graphitizing furnace 700 and a special transformer, the special transformer comprises a transformer unit 810 and a rectifying cabinet unit 820, and the series-parallel connection change-over switch is arranged between the graphitizing furnace 700 and the special transformer; specifically, a first series-parallel switch is disposed between the transformer unit 810 and the graphitizing furnace 700, and a second series-parallel switch is disposed between the rectifier unit 820 and the graphitizing furnace 700, where the first series-parallel switch structure and the second series-parallel switch structure are the same as those in the first embodiment.
The positive electrode output end of the transformer unit 810 is connected with the first movable contact 500 of the first series-parallel switch, the negative electrode output end of the transformer unit 810 is connected with the second movable contact 600 of the first series-parallel switch, and the first fixed contact 300 and the second fixed contact 400 of the first series-parallel switch are respectively connected with the positive electrode input end and the negative electrode input end of the graphitizing furnace 700;
The positive electrode output end of the rectifying cabinet unit 820 is connected with the first movable contact 500 of the second series-parallel switch, the negative electrode output end of the rectifying cabinet unit 820 is connected with the second movable contact 600 of the second series-parallel switch, and the first fixed contact 300 and the second fixed contact 400 of the second series-parallel switch are respectively connected with the positive electrode input end and the negative electrode input end of the graphitizing furnace 700.
Taking the first serial-parallel connection switch between the transformer unit 810 and the graphitizing furnace 700 as an example, when the first moving seat 210 and the second moving seat 220 of the driving mechanism 200 move back to the back, the first moving contact 500 is connected with the first stationary contact 300 to form a first branch, and the second moving contact 600 is connected with the second stationary contact 400 to form a second branch; the first branch is connected with the positive input end of the graphitizing furnace 700 in a matching way, and the second branch is connected with the negative input end of the graphitizing furnace 700 in a matching way; or (b)
When the first moving seat 210 and the second moving seat 220 of the driving mechanism 200 move in opposite directions, the first moving contact 500 and the second moving contact 600 are connected to form a third branch; wherein the third branch is internally shorted.
Taking a second series-parallel connection change-over switch arranged between the rectifier cabinet unit 820 and the graphitizing furnace 700 as an example, when the first moving seat 210 and the second moving seat 220 of the driving mechanism 200 move back to the first preset position, the first moving contact 500 is connected with the first stationary contact 300 to form a first branch, and the second moving contact 600 is connected with the second stationary contact 400 to form a second branch, so that the first branch is connected with the positive input end of the graphitizing furnace 700, and the second branch is connected with the negative input end of the graphitizing furnace 700;
Or when the first moving seat 210 and the second moving seat 220 of the driving mechanism 200 move towards each other to the second preset position, the first moving contact 500 and the second moving contact 600 are connected to form a third branch, so that the third branch is internally shorted.
Specifically, as shown in fig. 8, in the production, when the graphitization furnace 700 and the special transformer are produced in parallel, the following steps are adopted:
The first movable contact 500 of the first series-parallel switch is in contact with the first stationary contact 300, and the second movable contact 600 of the first series-parallel switch is in contact with the second stationary contact 400, so that the positive electrode output terminal A1 of the transformer unit 810 is connected with the first positive electrode input terminal B1 of the graphitization furnace 700, and the negative electrode output terminal A2 of the transformer unit 810 is connected with the first negative electrode input terminal B2 of the graphitization furnace 700.
The first movable contact 500 of the second series-parallel switch is in contact with the first stationary contact 300, and the second movable contact 600 of the second series-parallel switch is in contact with the second stationary contact 400, so that the positive electrode output terminal C1 of the rectifying cabinet unit 820 is connected with the second positive electrode input terminal D1 of the graphitizing furnace 700, and the negative electrode output terminal C2 of the rectifying cabinet unit 820 is connected with the second negative electrode input terminal D2 of the graphitizing furnace 700.
The positive electrode output terminal A1 of the transformer unit 810 and the positive electrode output terminal C1 of the rectifier unit 820 simultaneously transmit power to the first positive electrode input terminal B1 and the second positive electrode input terminal D1 of the graphitizing furnace 700. The negative electrode output terminal A2 of the transformer unit 810 and the negative electrode output terminal C2 of the rectifier cabinet unit 820 simultaneously transmit power to the first negative electrode input terminal B2 and the second negative electrode input terminal D2 of the graphitizing furnace 700, thereby realizing parallel power transmission operation.
The series power transmission mode is realized by using the transformer unit 810 to transmit power to the graphitizing furnace 700, as shown in fig. 9, by realizing the positive-negative short-circuit connection of the rectification cabinet unit 820; or the positive and negative short circuit connection of the transformer unit 810 is realized by using the power transmission of the rectifier cabinet unit 820, as shown in fig. 10; wherein, the positive and negative short circuit connection is realized on the rectifying cabinet unit 820, and the power transmission mode of the graphitizing furnace 700 by the transformer unit 810 is the same as the parallel power transmission mode; the transformer unit 810 is turned on by short-circuiting the positive and negative electrodes, and the graphitizing furnace 700 is powered by the rectifier unit 820, which is not described herein.
By arranging the first series-parallel connection change-over switch and the first series-parallel connection change-over switch between the graphitization furnace 700 and the special transformer, the effect of switching between parallel connection and series connection of a power transmission mode is achieved frequently in production, power transmission and power connection are further connected and separated for multiple times, the problems that the conventional series-parallel connection change-over switch is complex in operation and high in accident rate when the series-parallel connection change-over switch is performed are effectively solved, and the normal operation of series-parallel connection change-over in a graphitization furnace rectifying system is ensured.
Taking the serial-parallel connection switch structure in the first embodiment as an example, if parallel production is required in the specific working process of the rectification system of the graphitizing furnace of the present invention, the driving member 270 of the first serial-parallel connection switch performs the extension operation, so that the positive electrode output end A1 of the transformer unit 810 is connected with the first positive electrode input end B1 of the graphitizing furnace 700, and the negative electrode output end A2 of the transformer unit 810 is connected with the first negative electrode input end B2 of the graphitizing furnace 700; the driving member 270 of the second serial-parallel switch performs an extension operation such that the positive output terminal C1 of the rectifying tank unit 820 is connected to the second positive input terminal D1 of the graphitizing furnace 700, and the negative output terminal C2 of the rectifying tank unit 820 is connected to the second negative input terminal D2 of the graphitizing furnace 700.
If serial production is required, the driving member 270 of the first serial-parallel switch is continuously in an extended state, so that the positive electrode output end A1 of the transformer unit 810 is connected with the first positive electrode input end B1 of the graphitizing furnace 700, and the negative electrode output end A2 of the transformer unit 810 is connected with the first negative electrode input end B2 of the graphitizing furnace 700; the driving member 270 of the second serial-parallel switch performs a retracting operation, so that the positive output end C1 and the negative output end C2 of the rectifier cabinet unit 820 are short-circuited and connected, the internal serial connection of the special transformer is realized, and only the positive output end A1 of the transformer unit 810 and the negative output end A2 of the transformer unit 810 are respectively connected with the first positive input end B1 of the graphitizing furnace 700 and the first negative input end B2 of the graphitizing furnace 700, thereby completing the power transmission operation of the graphitizing furnace 700 and realizing the power transmission production in a serial connection mode.
Further, the series power transmission or parallel power transmission transformer unit 810 does not need to perform a switching operation for power transmission to the graphitization furnace 700, and thus the output terminal of the transformer unit 810 and the input terminal of the graphitization furnace 700 may be permanently connected.
The principle of serial-parallel switching between the graphitizing furnace 700 and the special transformer by adopting the serial-parallel switching switch in the invention is explained as follows:
at present, the domestic graphitization rectifying unit basically adopts the same rectifying circuit, and the invention still remains. Namely, two groups of reverse-polarity double-reverse star rectification current circuits with opposite phases form a structure of in-phase reverse-parallel connection. As shown in fig. 8: a1 and a3 are a group of reversed-polarity double-reversed-star circuits, a2 and a4 are a group of reversed-polarity double-reversed-star circuits, a rectification system basic circuit is formed, and three-phase five-column type iron cores are utilized to clamp triple frequency harmonic magnetic flux, so that two groups of six-phase double-reversed-star half-wave circuits are equivalent to a full-wave rectification structure.
In addition, a1 and a2, a3 and a4 are respectively in-phase and anti-parallel groups, so that the current phases of adjacent copper bar terminals flowing in any time sequence are absolutely opposite to balance the large reactance of the lead wires, the reactive power caused by bus leakage magnetic flux is reduced, and the power factor is improved.
As shown in fig. 8, the rectification system of the graphitizing furnace of this example is currently in a state of "normal parallel operation of two in-phase anti-parallel groups", and if the direct current voltage of the system needs to be increased, the rectification system needs to be in a state of "series operation of two in-phase anti-parallel groups", as shown in fig. 9 or fig. 10. Whereby: the direct current voltage of the graphitization furnace rectifying system is doubled, and the direct current is halved.
The parameters of the graphitization furnace rectification system after serial-parallel transformation are compared and explained in the following table:
TABLE 1 ideal parameters for the operation of the rectification systems of graphitizing furnaces before and after series-parallel transformation
Therefore, through serial-parallel transformation, the graphitization furnace rectification system can realize the following conditions: 32-75.1V,120kA output; when in series connection: 64.1-150.2V,60kA output ". The parameter can meet the requirements of various furnace conditions such as graphite electrodes, lithium battery cathode materials and the like by integrating the design experience of the graphitization furnace 700, and can fully adjust the time points of series-parallel connection according to an ideal power curve to improve the defects of the current power transmission mode.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.

Claims (10)

1. The serial-parallel connection change-over switch is characterized by comprising a frame body, wherein a driving mechanism, a first fixed contact, a second fixed contact, a first movable contact and a second movable contact are arranged on the frame body, the driving mechanism comprises a first movable seat and a second movable seat, a first butt joint plate and a second butt joint plate are respectively arranged on two sides of the first movable seat, a third butt joint plate and a fourth butt joint plate are respectively arranged on two sides of the second movable seat, the first butt joint plate and the second butt joint plate are respectively and elastically connected with the first movable seat, the third butt joint plate and the fourth butt joint plate are respectively and elastically connected with the second movable seat, the first movable contact is correspondingly arranged on the first butt joint plate and the second butt joint plate, the second movable contact is correspondingly arranged on the third butt joint plate and the fourth butt joint plate, and the first fixed contact and the second fixed contact are respectively arranged on two sides of the driving mechanism;
When the first movable seat and the second movable seat do back movement, the first butt joint plate drives the first movable contact to be connected with the first fixed contact, and the third butt joint plate drives the second movable contact to be connected with the second fixed contact; or (b)
When the first movable seat and the second movable seat move in opposite directions, the first movable contact driven by the second butt plate is connected with the second movable contact driven by the fourth butt plate.
2. The serial-parallel transfer switch according to claim 1, wherein a first guide rod is arranged between the first butt plate and the first movable seat, one end of the first guide rod is connected with the first butt plate, and the other end of the first guide rod penetrates through the first movable seat; a second guide rod is arranged between the second butt joint plate and the first movable seat, one end of the second guide rod is connected with the second butt joint plate, and the other end of the second guide rod penetrates through the first movable seat; a third guide rod is arranged between the third butt joint plate and the second movable seat, one end of the third guide rod is connected with the third butt joint plate, and the other end of the third guide rod penetrates through the second movable seat; a fourth guide rod is arranged between the fourth butt joint plate and the second movable seat, one end of the fourth guide rod is connected with the fourth butt joint plate, and the other end of the fourth guide rod penetrates through the second movable seat; elastic pieces are sleeved on the first guide rod, the second guide rod, the third guide rod and the fourth guide rod.
3. The serial-parallel connection change-over switch according to claim 2, wherein guide holes are formed in the first moving seat and the second moving seat, and the first guide rod, the second guide rod, the third guide rod and the fourth guide rod are respectively arranged through the corresponding guide holes; the first movable seat comprises a first substrate and a second substrate which are connected, the second movable seat comprises a third substrate and a fourth substrate which are connected, the first substrate and the second substrate are arranged in parallel, the third substrate and the fourth substrate are arranged in parallel, a plurality of guide holes are respectively formed in the first substrate, the second substrate, the third substrate and the fourth substrate, the first guide rod penetrates through the first substrate to be arranged, the second guide rod penetrates through the second substrate to be arranged, the third guide rod penetrates through the third substrate to be arranged, and the fourth guide rod penetrates through the fourth substrate to be arranged.
4. The serial-parallel switch according to claim 3, wherein a first fixing seat is disposed on the first moving seat, a second fixing seat is disposed on the second moving seat, the first substrate and the second substrate are connected and disposed through the first fixing seat, and the third substrate and the fourth substrate are connected and disposed through the second fixing seat.
5. The series-parallel connection change-over switch according to claim 1 or 2, wherein the frame body comprises a supporting frame, the driving mechanism is arranged on the supporting frame, the supporting frame encloses a containing space, the first movable seat and the second movable seat are both arranged in the containing space, the first stationary contact is arranged on one side of the first butt joint plate and far away from the second butt joint plate, and the second stationary contact is arranged on one side of the third butt joint plate and far away from the fourth butt joint plate; the driving mechanism further comprises a driving piece, wherein two ends of the driving piece are respectively connected with the first movable seat and the second movable seat and used for driving the first movable seat and the second movable seat to do back movement or opposite movement.
6. The serial-parallel transfer switch of claim 5, wherein the driving mechanism further comprises a first supporting member and a second supporting member, supporting grooves are respectively formed in two sides of the supporting frame, the first supporting member and the second supporting member are of supporting rod structures, one end of the first supporting member and one end of the second supporting member are respectively arranged in the supporting grooves, the other end of the first supporting member is connected with the first movable seat, and the other end of the second supporting member is connected with the second movable seat.
7. The serial-parallel transfer switch of claim 5, wherein a limiting mechanism is arranged on the support frame along the movement direction of the first moving seat and the second moving seat, and the limiting mechanism comprises two limiting blocks which are respectively arranged on the movement tracks of the first moving seat and the second moving seat; the first moving seat faces one side of the supporting frame, a first moving stop block is arranged on one side of the supporting frame, the second moving seat faces one side of the supporting frame, a second moving stop block is arranged on one side of the supporting frame, gaps exist between the first moving stop block and the second moving stop block and between the first moving stop block and the second moving stop block respectively.
8. The series-parallel switch according to claim 1 or 2, wherein the first stationary contact and the second stationary contact are each of a conductive sheet structure, the first movable contact is a first conductive sleeve provided in insulation with the first butt plate and the second butt plate, the second movable contact is a second conductive sleeve provided in insulation with the third butt plate and the fourth butt plate, the first conductive sleeve and the second conductive sleeve are each provided with a first contact portion and a second contact portion, the first contact portion of the first conductive sleeve is provided on one side of the first butt plate, the second contact portion of the first conductive sleeve is provided on one side of the second butt plate, the first contact portion of the second conductive sleeve is provided on one side of the third butt plate, the second contact portion of the second conductive sleeve is provided on one side of the fourth butt plate, and the second contact portion of the first conductive sleeve is provided opposite to the second contact portion of the second conductive sleeve.
9. The series-parallel switch of claim 8, wherein the first conductive sleeve and the second conductive sleeve are each provided with an arc portion, the arc portions being connected with the corresponding first contact portion and second contact portion; the first conductive sleeve and the second conductive sleeve are respectively provided with a connecting part, and the connecting parts extend from the corresponding first contact part and second contact part.
10. The utility model provides a graphitization furnace rectification system, includes graphitization furnace and special transformer, special transformer includes transformer unit and rectifier cabinet unit, and characterized in that, be provided with first series-parallel change over switch between transformer unit and the graphitization furnace, be provided with the second series-parallel change over switch between rectifier cabinet unit and the graphitization furnace, wherein, first series-parallel change over switch structure and the second series-parallel change over switch structure all adopt the series-parallel change over switch of any one of claims 1-9;
The positive electrode output end of the transformer unit is connected with the first movable contact of the first series-parallel connection change-over switch, the negative electrode output end of the transformer unit is connected with the second movable contact of the first series-parallel connection change-over switch, and the first fixed contact and the second fixed contact of the first series-parallel connection change-over switch are respectively connected with the positive electrode input end and the negative electrode input end of the graphitization furnace;
The positive electrode output end of the rectifying cabinet unit is connected with the first movable contact of the second series-parallel connection change-over switch, the negative electrode output end of the rectifying cabinet unit is connected with the second movable contact of the second series-parallel connection change-over switch, and the first fixed contact and the second fixed contact of the second series-parallel connection change-over switch are respectively connected with the positive electrode input end and the negative electrode input end of the graphitizing furnace.
CN202410188330.1A 2024-02-20 2024-02-20 Series-parallel change-over switch and graphitizing furnace rectifying system Pending CN118116752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410188330.1A CN118116752A (en) 2024-02-20 2024-02-20 Series-parallel change-over switch and graphitizing furnace rectifying system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410188330.1A CN118116752A (en) 2024-02-20 2024-02-20 Series-parallel change-over switch and graphitizing furnace rectifying system

Publications (1)

Publication Number Publication Date
CN118116752A true CN118116752A (en) 2024-05-31

Family

ID=91213044

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410188330.1A Pending CN118116752A (en) 2024-02-20 2024-02-20 Series-parallel change-over switch and graphitizing furnace rectifying system

Country Status (1)

Country Link
CN (1) CN118116752A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119519355A (en) * 2024-08-12 2025-02-25 中溢集团(吉林)新能源科技有限公司 A set of transformer and rectifier power supply equipment is used to supply power to two graphitization furnaces.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119519355A (en) * 2024-08-12 2025-02-25 中溢集团(吉林)新能源科技有限公司 A set of transformer and rectifier power supply equipment is used to supply power to two graphitization furnaces.

Similar Documents

Publication Publication Date Title
CN118116752A (en) Series-parallel change-over switch and graphitizing furnace rectifying system
CN204030991U (en) Be applicable to the three-phase inversion composite bus bar of half-bridge module
CN221783095U (en) A series-parallel switching switch and a graphitization furnace rectification system
CN221783100U (en) A series-parallel switching switch and a graphitization furnace rectification system
CN107910666A (en) A kind of plug-in terminal box
CN107918038B (en) Switch type phase sequence switching combined junction box
CN212849243U (en) Safe uninterrupted power supply's arc track wiping line
CN211035247U (en) A kind of switch and graphitization furnace
CN216403859U (en) Composite pushing device and graphitizing furnace power supply trolley with same
CN216646598U (en) Electric energy meter connector with short circuit function
CN117060180A (en) Control system of household energy storage system and application method thereof
CN104562160A (en) Electroplating clamp conductive device
CN108556021A (en) The movable clamping mechanism of separator paper cutting machine
CN213936106U (en) High-voltage fusing device for electrical engineering
CN217010558U (en) Control equipment for multipath control of three-phase asynchronous motor
CN212012497U (en) Frequency multiplication power pulse topology integrated circuit
CN219123408U (en) Battery pack conducting strip structure
SU767854A1 (en) High-amperage disconnector
CN202026247U (en) Positive and negative electrode converter for rectifier
CN212161619U (en) Transmission vacuum on-load tap-changer
CN215185710U (en) Special-shaped bus and bus connecting structure
CN221862064U (en) Electric connection structure of switching power supply
CN221126485U (en) Light and thin type power guide rail for smart home
CN222562920U (en) Busbar assembly for battery module
CN222381073U (en) A power transmission vehicle and graphitization system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication