CN105931867A - Design method for dual-power electric change-over switch - Google Patents
Design method for dual-power electric change-over switch Download PDFInfo
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- CN105931867A CN105931867A CN201610355111.3A CN201610355111A CN105931867A CN 105931867 A CN105931867 A CN 105931867A CN 201610355111 A CN201610355111 A CN 201610355111A CN 105931867 A CN105931867 A CN 105931867A
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- columnar part
- power supply
- connecting column
- binding post
- contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
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- Electromagnetism (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention discloses a design method for a dual-power electric change-over switch, belongs to the field of electrical equipment, and in particular relates to the design method for the dual-power electric change-over switch. The design method comprises the steps of arranging an electric operating mechanism provided with an electromagnet and a triggering button, and a contact chamber provided with two power supply wiring terminals and a load wiring terminal; arranging a linking post on each wiring terminal, thus allowing the linking post to be partly embedded into the wiring terminal and in interference fit with the wiring terminal; and arranging a first conductive columnar part in interference fit with a power bus on each linking post, and arranging a second conductive columnar part in the first columnar part in a coaxial manner, and thereby the first and second columnar parts being in interference fit with each other, and the thermal expansion coefficient of the second columnar part being more than that of the first columnar part. The design method disclosed by the invention has the advantages that 1, the more conductive areas are generated with the same splicing length, so that the current density is reduced, and the low temperature rise of the wiring terminal is achieved; 2, the consumption of the buses is reduced, and the resources are saved; and 3, the electric clearance or safe distance is increased, and the electrical security of the equipment is improved.
Description
Technical field
The present invention relates to field of electrical equipment, be specifically related to the method for designing of the electronic permutator of a kind of dual power supply.
Background technology
In existing electric power complete set of equipments factory, electronic for dual power supply permutator is arranged in power distribution cabinet by workmen, the binding post of the electronic permutator of dual power supply generally uses power bus-bar directly to couple, power bus-bar is directly overlapped on binding post, binding post couples the generally overlapping splicing processes of employing with power bus-bar, fastens with bolt the most again.As shown in Figure 3 and Figure 4, such coupling method needs overlapping with binding post for busbar certain length, so that the electric current density of contact surface maintains in certain limit value, so that the temperature rise of connection place meets relevant criterion.In order to make connection place temperature rise low, it usually needs increase the length that busbar is overlapping with terminal, make contact area increase, and then make the electric current density of contact surface reduce, finally make connection place have relatively low temperature rise.And increase overlap length and can strengthen the consumption of busbar, and then increase manufacturing cost.The bolt of fastening can make the electric clearance between conductive component and non conductive component or safe distance reduce, in order to make electric clearance or safe distance keep constant, need to strengthen the spacing between binding post and non conductive component, and strengthen spacing and necessarily cause the overall dimensions of the electronic permutator of whole dual power supply to become big.How to increase contact area and to make connection place temperature rise low, but do not reduce electric clearance, and do not strengthen connection place and take up room.
Summary of the invention
It is an object of the invention to solve the problems referred to above, and the method for designing of the electronic permutator of a kind of dual power supply is provided.
For this, the present invention provides the method for designing of the electronic permutator of a kind of dual power supply, it includes providing motor-operating mechanism, the contact room coupled with motor-operating mechanism, motor-operating mechanism arranges electric magnet and trigger button, contact room arranges moving contact, static contact, binding post, arc-chutes and drive mechanism, moving contact is made to couple with drive mechanism, static contact is made to couple with binding post, connection terminal portion is made to expose contact room, electric magnet action is made by trigger button, electric magnet makes moving contact disconnect with static contact or connect by drive mechanism, the arc extinction produced during moving contact being disconnected with static contact by arc-chutes, binding post includes providing two power supply terminals and a load wiring terminal.Binding post arranges connecting column, make connecting column be partially submerged into binding post and with binding post interference fit, the first columnar part of the conduction of setting and power bus-bar interference fit on connecting column, first columnar part is coaxially disposed second columnar part with electric conductivity, make the first columnar part and the second columnar part interference fit, second columnar part is arranged at inside the first columnar part, makes the coefficient of thermal expansion coefficient of thermal expansion more than the first columnar part of the second columnar part.
Advantageously, the resistivity resistivity more than the first columnar part of the second described columnar part is made.
Specifically, the material of the second described columnar part is set to aluminum or aluminium alloy, the material of the first columnar part is set to copper or copper alloy.
Preferably, the ratio of the external diameter of the second described columnar part and the external diameter of the first columnar part is set to 0.5-0.8.
Specifically, the second columnar part is set to solid construction, the first columnar part is set to hollow structure, make the second columnar part run through the first columnar part.
Advantageously, being coaxially arranged with the second through hole inside connecting column, the outer cylinder at connecting column is radially arranged the first through hole, makes the first through hole and the connection of the second through hole, and the first through hole is arranged at the axial middle part of connecting column.
Beneficial effect
Being to use the connecting mode of docking to couple with power bus-bar binding post owing to dual power supply disclosed by the invention manually turns on the method for designing of pass, relative to existing overlapping overlapping mode, it can bring following beneficial effect.
The most identical lap of splice produces more conductive area, and then reduces electric current density, it is achieved the low-temperature-rise of connection place.
2., without busbar being carried out overlapping overlap joint, reducing the consumption of busbar, having saved resource.
3., owing to eliminating fastening bolt and nut, so increasing electric clearance or safe distance, improve the electrical security of equipment.
4., owing to eliminating fastening bolt and nut, so the distance between connection place and non conductive component becomes big, and connection place takes up room and does not increase.
Accompanying drawing explanation
In explanation below in reference to the accompanying drawing embodiment to being given as non-limiting example, the present invention and superiority thereof will be better understood, accompanying drawing is as follows:
Fig. 1 is the axonometric chart in existing dual power supply electronic permutator front；
Fig. 2 is the axonometric chart at the existing dual power supply electronic permutator back side；
Fig. 3 is the axonometric chart in existing dual power supply electronic permutator front, and wherein power bus-bar is to connecting；
Fig. 4 is the axonometric chart at the existing dual power supply electronic permutator back side, and wherein power bus-bar is to connecting；
Fig. 5 is the axonometric chart in dual power supply disclosed by the invention electronic permutator front；
Fig. 6 is the axonometric chart at the dual power supply disclosed by the invention electronic permutator back side；
Fig. 7 is the axonometric chart in dual power supply disclosed by the invention electronic permutator front, and wherein power bus-bar is to connecting；
Fig. 8 is the axonometric chart at the dual power supply disclosed by the invention electronic permutator back side, and wherein power bus-bar is to connecting；
Fig. 9 is size comparison's figure of existing power bus-bar overlapping mode and power bus-bar docking mode disclosed by the invention；
Figure 10 is the exploded partial perspective view of the binding post position of Fig. 7；
Figure 11 is the axonometric chart of connecting column disclosed by the invention；
Figure 12 is the perspective cut-away view of Figure 11；
Figure 13 is the exploded perspective view of Figure 11；
Figure 14-15 is the arrangement schematic diagram of connecting column disclosed by the invention；
Figure 16 is the axonometric chart of power bus-bar；
Figure 17 is that power supply A connects, the schematic diagram that power supply B disconnects；
Figure 18 is the schematic diagram that two-way power supply all disconnects；
Figure 19 is that power supply B connects, the schematic diagram that power supply A disconnects.
Description of reference numerals
1. the first columnar part；2. the second columnar part；3. front；4. the back side；5. end face；6. the first through hole；7. the second through hole；8. motor-operating mechanism；9. contact room；10. handle；11. power supply A binding posts；12. power supply B binding posts；13. load wiring terminals；14. drive mechanisms；15. power supply A moving contacts；16. power supply A static contact；17. power supply B moving contacts；18. power supply B static contacts；19. power supply A trigger buttons；20 power supply B trigger buttons；21. secondary connection rows.
Detailed description of the invention
R in present specification represents radius.
nullAs depicted in figs. 1 and 2，It it is a kind of electronic permutator of existing dual power supply，It includes motor-operating mechanism 8、The contact room 9 coupled with motor-operating mechanism 8，Motor-operating mechanism 8 is provided with electric magnet、Power supply A trigger button 19、Power supply B trigger button 20 and secondary connection row 21，Contact room 9 is provided with moving contact、Static contact、Binding post、Arc-chutes and drive mechanism 14，Moving contact couples with drive mechanism 14，Static contact couples with binding post，Connection terminal portion exposes contact room，Trigger power supply A trigger button 19 or power supply B trigger button 20 makes electric magnet action，Electric magnet makes moving contact disconnect with static contact or connect by drive mechanism 14，The electric arc that moving contact produces during disconnecting with static contact is extinguished by arc-chutes，Binding post includes two power supply terminals 11、12 and a load wiring terminal 13，Power supply A binding post 11 couples with power supply A，Power supply B binding post 12 couples with power supply B，Load wiring terminal 13 couples with load，Supply of electric power needed for electric magnet action derives from power supply A binding post or the power supply B binding post of contact room，Instruction needed for electric magnet action is provided by power supply A trigger button 19 or power supply B trigger button 20.Motor-operating mechanism 8 arranges two electric magnet, respectively power supply A electric magnet and power supply B electric magnet, and power supply A electric magnet is responsible for from power supply B, load is switched to power supply A, and power supply B electric magnet is responsible for from power supply A, load is switched to power supply B.After power supply A breaks down, in order to make load continue to run with, trigger the power supply B trigger button on motor-operating mechanism 8, power supply B trigger button Guan Bi makes B-source electric magnet action, makes the power supply A moving contact 15 in contact room 9 first separate with power supply A static contact 16 by drive mechanism, sees Figure 18, the power supply B moving contact 17 in contact room 9 is made to close with power supply B static contact 18 again, see Figure 19, and then load is switched to normal power supply B from the power supply A of fault, it is achieved continuing to run with of load.After power supply B breaks down, in order to make load continue to run with, trigger the power supply A trigger button on motor-operating mechanism 8, power supply A trigger button Guan Bi makes a-power supply electric magnet action, the power supply B moving contact 17 in contact room 9 is made first to separate with power supply B static contact 18 by drive mechanism, see Figure 18, the power supply A moving contact 15 in contact room 9 is made to close with power supply A static contact 16 again, see Figure 17, and then load is switched to normal power supply A from the power supply B of fault, realize continuing to run with of load, contact state and the information of conversion success or not that the electronic permutator of dual power supply is current arrive designated equipment by secondary terminals row 21 output of motor-operating mechanism 8, the power supply status that load is presently in can be shown by the position indicator pointer 10 in motor-operating mechanism 8 front.
As shown in Figure 3 and Figure 4, the binding post of the electronic permutator of existing dual power supply and the connecting mode of power bus-bar, the connecting mode used is overlapping overlapping mode, after power bus-bar and binding post overlap certain length, the two being fastened with screw bolt and nut, such connecting mode is defined as overlap joint again.
nullAs shown in Figure 5 and Figure 6，The electronic permutator of dual power supply disclosed by the invention it include motor-operating mechanism 8、The contact room 9 coupled with motor-operating mechanism 8，Motor-operating mechanism 8 is provided with electric magnet、Power supply A trigger button 19、Power supply B trigger button 20 and secondary connection row 21，Contact room 9 is provided with moving contact、Static contact、Binding post、Arc-chutes and drive mechanism 14，Moving contact couples with drive mechanism 14，Static contact couples with binding post，Connection terminal portion exposes contact room，Trigger power supply A trigger button 19 or power supply B trigger button 20 makes electric magnet action，Electric magnet makes moving contact disconnect with static contact or connect by drive mechanism 14，The electric arc that moving contact produces during disconnecting with static contact is extinguished by arc-chutes，Binding post includes two power supply terminals 11、12 and a load wiring terminal 13，Power supply A binding post 11 couples with power supply A，Power supply B binding post 12 couples with power supply B，Load wiring terminal 13 couples with load，Supply of electric power needed for electric magnet action derives from power supply A binding post or the power supply B binding post of contact room，Instruction needed for electric magnet action is provided by power supply A trigger button 19 or power supply B trigger button 20.Motor-operating mechanism 8 arranges two electric magnet, respectively power supply A electric magnet and power supply B electric magnet, and power supply A electric magnet is responsible for from power supply B, load is switched to power supply A, and power supply B electric magnet is responsible for from power supply A, load is switched to power supply B.After power supply A breaks down, in order to make load continue to run with, trigger the power supply B trigger button on motor-operating mechanism 8, power supply B trigger button Guan Bi makes B-source electric magnet action, makes the power supply A moving contact 15 in contact room 9 first separate with power supply A static contact 16 by drive mechanism, sees Figure 18, the power supply B moving contact 17 in contact room 9 is made to close with power supply B static contact 18 again, see Figure 19, and then load is switched to normal power supply B from the power supply A of fault, it is achieved continuing to run with of load.After power supply B breaks down, in order to make load continue to run with, trigger the power supply A trigger button on motor-operating mechanism 8, power supply A trigger button Guan Bi makes a-power supply electric magnet action, the power supply B moving contact 17 in contact room 9 is made first to separate with power supply B static contact 18 by drive mechanism, see Figure 18, the power supply A moving contact 15 in contact room 9 is made to close with power supply A static contact 16 again, see Figure 17, and then load is switched to normal power supply A from the power supply B of fault, realize continuing to run with of load, contact state and the information of conversion success or not that the electronic permutator of dual power supply is current arrive designated equipment by secondary terminals row 21 output of motor-operating mechanism 8, the power supply status that load is presently in can be shown by the position indicator pointer 10 in motor-operating mechanism 8 front.
As shown in Figure 5 and Figure 6, binding post is provided with connecting column, connecting column be partially submerged into binding post and with binding post interference fit, embedded length is the half of connecting column length, the lower half of connecting column embeds binding post, and connecting column is coupled by the pin in binding post front with the fastening of both binding posts.
As shown in Figure 7 and Figure 8, the connecting column that pre-manufactured hole on power bus-bar is inserted on binding post, power bus-bar and connecting column interference fit, the end face laminating of the end face of power bus-bar and binding post, connecting column is coupled by the pin in power bus-bar front with the fastening of both power bus-bars, and such connecting mode is defined as docking.
As shown in Figure 9, it it is size comparison's figure of existing power bus-bar overlapping mode and power bus-bar docking mode disclosed by the invention, right-hand part is the binding post overlapping mode with power bus-bar of the electronic permutator of existing dual power supply, and left side is the binding post docking mode with power bus-bar of the electronic permutator of dual power supply disclosed by the invention.In order to strengthen the contrast effect of two kinds of connecting modes, connecting mode disclosed by the invention is set directly at the left of existing connecting mode, and the dotted line in figure is equal just to the thickness embodying left and right busbar, does not represent the physical connection mode of left and right busbar.Two kinds of connecting modes the lap of splice the same, be all L5, be presented as: the overlap length of the power bus-bar under existing connecting mode and binding post is L5, and the length of the connecting column under connecting mode disclosed by the invention is also L5.The directly perceived change that two kinds of connecting modes bring is exactly the significant change of relative dimensions, L1 is the electric clearance under existing connecting mode or relatively distance, L2 is the electric clearance under connecting mode disclosed by the invention or relatively distance, L3 is that the connection place under existing connecting mode takies width, L4 is that the connection place under connecting mode disclosed by the invention takies width, L7 is the safe distance between the line under existing connecting mode, and L9 is the safe distance between the line under connecting mode disclosed by the invention.Can visually see from figure: L2 is significantly greater than L1, the height of the size of increase about nut adds bolt tail and highlights the height of nut.L4 is significantly less than L3, and the size of reduction about busbar thickness adds bolt head height and adds height of nut and add bolt tail and highlight the height of nut.L9 is significantly greater than L7, and the thickness of the chi of increase about busbar adds bolt head height and adds the height of nut and add bolt tail and highlight the height of nut.Therefore, the factor (electric clearance or relatively distance or safe distance) that power equipment is favourable is improved, and factor disadvantageous to power equipment (connection place takes up room) is reduced.
As shown in Figure 10, before connecting column is assemblied in binding post, first the end face 5 at binding post processes 3 pre-manufactured holes receiving connecting columns along the length direction of outfan, and the diameter of pre-manufactured hole is slightly less than the external diameter of connecting column, makes connecting column and pre-manufactured hole interference fit diametrically；The degree of depth of the pre-manufactured hole connecting column length slightly larger than 0.5 times, after pre-manufactured hole processes, the half length of connecting column is inserted in pre-manufactured hole, the first through hole in the middle part of connecting column is made to be at end face 5, vertically process the through hole for assembling pin from the front 3 of binding post, make through hole run through front 3 and the back side 4 of binding post, and run through connecting column simultaneously, the axis of through hole and the axes intersect of connecting column, coupled the fastening of both binding post and connecting column by pin.
As shown in figure 16, before power bus-bar is assemblied in binding post, first the end face 5 at power bus-bar processes 3 pre-manufactured holes along busbar length direction, and the diameter of pre-manufactured hole is slightly less than the external diameter coupling pillar, makes connecting column and pre-manufactured hole interference fit diametrically；The degree of depth of the pre-manufactured hole connecting column length slightly larger than 0.5 times, after pre-manufactured hole processes, pre-manufactured hole on power bus-bar is inserted in the connecting column revealed on binding post, fit with the end face 5 of binding post until the end face 5 of power bus-bar, the through hole for assembling pin is vertically processed from the front 3 of power bus-bar, through hole is made to run through front 3 and the back side 4 of power bus-bar, and run through connecting column simultaneously, the axis of through hole and the axes intersect of connecting column, by pin, the fastening of both power bus-bar and connecting column is coupled, the fastening finally achieving power bus-bar and binding post couples.
After binding post and power bus-bar docking, making being close to of the end face of connecting column and pre-manufactured hole matched in clearance in the axial direction, beneficially binding post and the end face of power bus-bar, the head of pre-manufactured hole is machined with the chamfering of convenient installation.Due to hole and pin interference fit, after pin assembling puts in place, can limit binding post and mutual the moving axially of power bus-bar, finally make binding post, connecting column, power bus-bar, pin firmly couples together.
As shown in figure 11, a kind of connecting column of the binding post of the electronic permutator of dual power supply disclosed by the invention, it has columned profile, and end is provided with chamfering convenient for assembly.
As shown in figure 12, being coaxially disposed the second columnar part 2 in the first columnar part 1, the first columnar part 1 and the second columnar part 2 interference fit, the material of the first columnar part 1 is copper, and the material of the second columnar part 2 is aluminum.
As shown in figure 13, the first columnar part 1 has the structure of hollow, and the second columnar part 2 runs through the first columnar part 1, and the ratio of the external diameter of the second columnar part 2 and the external diameter of the first columnar part 1 is 0.5-0.8.First and second columnar part 1,2 all has electric conductivity, and the coefficient of thermal expansion of the second columnar part 2 is more than the coefficient of thermal expansion of the first columnar part 1, and the resistivity of the second columnar part 2 is more than the resistivity of the first columnar part 1.
After connecting column is assemblied in binding post and power bus-bar, due to the first columnar part 1 and binding post and the pre-manufactured hole interference fit of busbar, so, the first columnar part 1 and binding post and busbar fit tightly, and the first columnar part 1 of connecting column fully carries electric current.Due to the first columnar part 1 and the second columnar part 2 also interference fit, so the first columnar part 1 and the second columnar part 2 also fit tightly, the second columnar part 2 the most fully carries electric current.nullTherefore，The heat effect of the first columnar part 1 and the second columnar part 2 can give full play to，Resistivity due to the second columnar part 2 is more than the resistivity of the first columnar part 1，So the temperature of the second columnar part 2 can be higher than the first columnar part 1，Coefficient of thermal expansion due to the second columnar part 2 is more than the coefficient of thermal expansion of the first columnar part 1，Therefore，In the case of temperature and coefficient of thermal expansion are the most relatively high，The radially enlarged phenomenon of the second columnar part 2 can be significantly greater than the radially enlarged phenomenon of the first columnar part 1，Therefore the second columnar part 2 can fit tightly the first columnar part 1 and apply radially outer pressure to the first columnar part 1，The radial dimension thus making the first columnar part 1 the most outwards becomes big，The pre-manufactured hole ultimately resulting in the first columnar part 1 and binding post and power bus-bar more fits tightly，The most also radially outer pressure is provided to pre-manufactured hole，I.e. pressure ratio connecting column between connecting column and binding post and busbar is bigger when just assembling，Increasing contact pressure can also make the temperature rise of contact site reduce.
As can be seen here, the coupling of interference fit, the coupling of resistivity and the coefficient of thermal expansion between each feature has obvious action to reducing the binding post temperature rise with busbar connection place, effect between three is complementary, originally interference fit makes resistivity and coefficient of thermal expansion have the basis played a role, and the effect that resistivity and coefficient of thermal expansion produce exacerbates interference fit, finally so that the contact pressure of connection place strengthens.
As shown in figure 14, cross section is foursquare power bus-bar, and centre is provided with a pre-manufactured hole receiving connecting column, and the distance of pre-manufactured hole circumference to bus bar edge is R, and busbar width is L6.When using existing overlapping splicing processes to couple, the conductive area of connection place is
S1=L6xL5=(R+2R+R) xL5=4RxL5(L5 is the lap of splice, as shown in Figure 9)
And when using connecting column to couple, the conductive area of connection place is
S2=2πRxL5
Therefore,
S2: S1=2πR: 4R=π/2≈1.57
So, use the mode of connecting column overlap joint can obtain more contact area.Obviously, under conditions of meeting mechanical strength, increase the diameter of pre-manufactured hole, reduce hole back gauge and can obtain bigger contact area.
As shown in figure 15, cross section is rectangular power bus-bar, and centre arranges 3 pre-manufactured holes receiving connecting column, and the distance of pre-manufactured hole circumference to bus bar edge is R, and the beeline between each hole is R, and busbar width is L6.When using existing overlapping splicing processes to couple,
The conductive area of connection place is
S1=L6xL5=(4R+3x2R)xL5=10RxL5
And when using connecting column to couple, the conductive area of connection place is
S2=3x2πRxL5=6πRxL5
Therefore,
S2: S1=6πR: 10R=3π/5≈1.884
So, use the mode of connecting column overlap joint can obtain more contact area.Obviously, under conditions of meeting mechanical strength, increase the diameter of pre-manufactured hole, reduce hole back gauge and can obtain bigger contact area.
Therefore, connecting column disclosed by the invention creates the good effect of two aspects, and one is the increase in contact pressure, two is to have increased considerably conductive area, under the common effect of the two active factor, the temperature rise of connection place is greatly lowered, it is achieved that the purpose of the present invention.
As shown in figure 16, in order to distinguish each face of busbar and binding post, end face 5 is defined as the thickness with busbar (or binding post) and the face of width composition, i.e. identify the face of 5 in Figure 16.Front and back is defined as the width with busbar (or binding post) and the face of length composition, i.e. identifying the face of 3,4 in figure, and 3 is front, and 4 is the back side.
As shown in figure 12, the inside of the second columnar part 2 is coaxially arranged with the second through hole 7, first columnar part 6 has hollow structure, second columnar part 2 runs through the first columnar part 1, the outer cylinder of the first columnar part 1 is radially arranged the first through hole 6, first through hole 6 connects with the second through hole 7, and the first through hole 6 is positioned at the axial middle part of the first columnar part 1.
Setting due to through hole 6,7, make connecting column during the pre-manufactured hole inserting binding post, air in pre-manufactured hole can successfully be discharged from the second through hole 7, and then connecting column can successfully be assembled put in place, when power bus-bar is inserted in already installed connecting column, air in the pre-manufactured hole of power bus-bar can be smoothly through the second through hole 7 and discharge from the first through hole 6, and then the second busbar can be assembled smoothly put in place.
Embodiment two
The material of the first columnar part 1 in embodiment one is changed to copper alloy, the material of the second columnar part 2 changes to aluminium alloy, owing to the hardness of alloy is more relatively high, first the second columnar part 2 can be preserved under low temperature environment (5 degree) a period of time (5 minutes), and the first columnar part 1 preserves a period of time (5 minutes) under hot environment (80 degree), by effect of expanding with heat and contract with cold, the internal diameter that can make the first columnar part 1 slightly becomes big, and the external diameter of the first columnar part 1 slightly diminishes, and then easily the second columnar part 2 is assembled in the first columnar part 1, after the connecting column prepared to be installed recovers room temperature, first columnar part 1 and the second columnar part 2 can realize interference fit.The diameter of connecting column disclosed by the invention and length have different size specification, to adapt to different busbar size or the needs of binding post size.
Claims (6)
1. the method for designing of the electronic permutator of dual power supply, it includes providing motor-operating mechanism (8), the contact room (9) coupled with motor-operating mechanism (8), motor-operating mechanism (8) arranges electric magnet and trigger button, contact room (9) arrange moving contact, static contact, binding post, arc-chutes and drive mechanism (14), moving contact is made to couple with drive mechanism (9), static contact is made to couple with binding post, connection terminal portion is made to expose contact room, electric magnet action is made by trigger button, electric magnet makes moving contact disconnect with static contact or connect by drive mechanism (9), the arc extinction produced during moving contact being disconnected with static contact by arc-chutes, binding post includes providing two power supply terminals (11, 12) and one load wiring terminal (13)；It is characterized in that, binding post arranges connecting column, make connecting column be partially submerged into binding post and with binding post interference fit, at union end (9), connecting column is set, make connecting column be partially submerged into union end (9) and with union end (9) interference fit, first columnar part (1) of the conduction of setting and power bus-bar interference fit on connecting column, first columnar part (1) is coaxially disposed second columnar part (2) with electric conductivity, make the first columnar part (1) and the second columnar part (2) interference fit, second columnar part (2) is arranged at the first columnar part (1) internal, make the coefficient of thermal expansion coefficient of thermal expansion more than the first columnar part (1) of the second columnar part (2).
The method for designing of the electronic permutator of a kind of dual power supply the most according to claim 1, it is characterised in that make the resistivity resistivity more than the first columnar part (1) of described the second columnar part (2).
The method for designing of the electronic permutator of a kind of dual power supply the most according to claim 2, it is characterised in that the material of described the second columnar part (2) is set to aluminum or aluminium alloy, the material of the first columnar part (1) is set to copper or copper alloy.
The method for designing of the electronic permutator of a kind of dual power supply the most according to claim 1, it is characterised in that the ratio of the external diameter of described the second columnar part (2) and the external diameter of the first columnar part (1) is set to 0.5-0.8.
The method for designing of the electronic permutator of a kind of dual power supply the most according to claim 4, it is characterized in that, second columnar part (2) is set to solid construction, the first columnar part (1) is set to hollow structure, make the second columnar part (2) run through the first columnar part (1).
The method for designing of the electronic permutator of a kind of dual power supply the most according to claim 4, it is characterized in that, the second through hole (7) it is coaxially arranged with inside connecting column, outer cylinder at connecting column is radially arranged the first through hole (6), make the first through hole (7) connect with the second through hole (6), the first through hole (6) is arranged at the axial middle part of connecting column.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110198861A (en) * | 2017-01-31 | 2019-09-03 | 雷诺股份公司 | Electric connecting device with built-in blocking function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08249988A (en) * | 1995-03-07 | 1996-09-27 | Togami Electric Mfg Co Ltd | Change-over switch |
| CN201514867U (en) * | 2009-09-23 | 2010-06-23 | 深圳市泰永科技股份有限公司 | Dual power automatic transfer switching device |
| CN102354638A (en) * | 2011-07-21 | 2012-02-15 | 安徽鑫龙电器股份有限公司 | Dual-power automatic transfer switch and overload and short-circuit protection method thereof |
| CN202268489U (en) * | 2011-08-11 | 2012-06-06 | 泰科电子(上海)有限公司 | Electrical connection assembly |
| CN104852163A (en) * | 2015-05-27 | 2015-08-19 | 国网山东济南市长清区供电公司 | Assembly type cable connector |
-
2016
- 2016-05-25 CN CN201610355111.3A patent/CN105931867A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08249988A (en) * | 1995-03-07 | 1996-09-27 | Togami Electric Mfg Co Ltd | Change-over switch |
| CN201514867U (en) * | 2009-09-23 | 2010-06-23 | 深圳市泰永科技股份有限公司 | Dual power automatic transfer switching device |
| CN102354638A (en) * | 2011-07-21 | 2012-02-15 | 安徽鑫龙电器股份有限公司 | Dual-power automatic transfer switch and overload and short-circuit protection method thereof |
| CN202268489U (en) * | 2011-08-11 | 2012-06-06 | 泰科电子(上海)有限公司 | Electrical connection assembly |
| CN104852163A (en) * | 2015-05-27 | 2015-08-19 | 国网山东济南市长清区供电公司 | Assembly type cable connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110198861A (en) * | 2017-01-31 | 2019-09-03 | 雷诺股份公司 | Electric connecting device with built-in blocking function |
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