CN111063583A

CN111063583A - Phase-change switch

Info

Publication number: CN111063583A
Application number: CN201911418002.1A
Authority: CN
Inventors: 袁郭竣; 潘环吉; 孙忠利; 刘剑; 周鳌; 张艳辉; 陈丹军; 施超超
Original assignee: Ningbo City Quansheng Shell Co ltd
Current assignee: Ningbo City Quansheng Shell Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-04-24
Anticipated expiration: 2039-12-31
Also published as: CN111063583B

Abstract

The invention discloses a phase change switch, which comprises a casing, two sides of the casing are provided with an incoming wire end and an outgoing wire end, the incoming wire end and the outgoing wire end are respectively provided with three three-phase electrical wiring holes, and the casing is installed with The switch body includes three first-phase modules, second-phase modules and third-phase modules with the same structure, and the first-phase module, the second-phase module and the third-phase module respectively include a circuit board and three There are a first unit, a second unit and a third unit with the same structure, and each unit is provided with a mechanical interlocking structure. The commutation switch of the present invention has three-phase input and three-phase output, combined with the zero line to form a multi-user power supply, and adopts a mechanical interlock structure, which can effectively prevent the situation that the two phases take power at the same time, prevent short circuits, and increase the power consumption. Protection function, and can be flexibly adjusted to take power according to actual needs.

Description

Phase-change switch

Technical Field

The invention relates to the field of switches, in particular to a phase change switch.

Background

The existing phase change switch is used for single-user power consumption, three-phase power is randomly switched into one phase and a zero line according to rules to be matched into single-phase power consumption, and the mode is only suitable for single users, namely three-phase input and single-phase output. And when the power is taken, two phases are easily taken simultaneously, short circuit is caused, and safety accidents occur.

Disclosure of Invention

The invention aims to provide a phase change switch, wherein three phases enter and exit, and are matched with a zero line to jointly form multi-user power utilization, a mechanical interlocking structure is adopted, the condition that two phases simultaneously take power is effectively prevented, short circuit is prevented, a protection function is added, and the power taking can be flexibly adjusted according to actual requirements.

In order to achieve the purpose, the invention provides the technical scheme that: the three-phase switch comprises a shell, wherein a wire inlet end and a wire outlet end are arranged on two sides of the shell, three-phase electric wiring holes are respectively arranged on the wire inlet end and the wire outlet end, a switch body is installed in the shell and comprises a first phase module, a second phase module and a third phase module which are identical in structure, the first phase module, the second phase module and the third phase module respectively comprise a circuit board and a first unit, a second unit and a third unit which are identical in structure, the first unit, the second unit and the third unit respectively comprise a base, an upper cover, a wire inlet contact piece, a wire outlet contact piece and a relay, the relay is fixed on the upper cover, two electrifying pins of the relay are connected with a circuit of the circuit board, first fixed blocks are respectively fixed on the upper and lower two stages of the relay, a switch piece is movably clamped on the two first fixed blocks, and first clamping grooves are respectively arranged at the upper and lower, the first clamping groove is movably connected with the first fixing block, the front surface of the switch element is provided with a first clamping block, the bottom of the incoming line contact piece is fixed with a spring contact piece, the front end of the spring contact piece is clamped with a second fixing block, the upper part of the second fixing block is provided with a third fixing block and a second clamping groove, the second clamping groove is internally clamped with the first clamping block, the bottom of the front end of the spring contact piece and the upper part of the rear end of the outgoing line contact piece are provided with corresponding contacts, the base is clamped with a mechanical interlocking structure, the mechanical interlocking structure comprises a fixing box, the fixing box is fixed with a first interlocking block through a first rotating shaft, the fixing boxes at two sides of the first rotating shaft are respectively fixed with a second interlocking block and a third interlocking block through a second rotating shaft and a third rotating shaft, two ends of the first interlocking block, the second interlocking block and the third interlocking block are respectively provided with an interlocking angle, the interlocking angles at two ends of the first interlocking block are located below third fixed blocks of the first unit and the third unit, the interlocking angles at two ends of the second interlocking block are located below the third fixed blocks of the first unit and the second unit, the interlocking angles at two ends of the third interlocking block are located below the third fixed blocks of the second unit and the third unit, incoming wires of the first units of the first phase module, the second phase module and the third phase module are respectively connected with a first incoming wire, incoming wires of the second units are respectively connected with a second incoming wire, incoming wires of the third units are respectively connected with a third incoming wire, outgoing wires of the first units, the second units and the third units of the first phase module are respectively connected with a first outgoing wire, outgoing wires of the first units, the second units and the third units of the second phase module are respectively connected with a second outgoing wire, and the first units, the second units and the third units of the third phase module are respectively connected with a second outgoing wire, The outgoing line contact pieces of the second unit and the third unit are respectively connected with a third outgoing line.

Furthermore, the switch piece, the contact, the incoming line contact piece, the outgoing line contact piece and the spring contact piece are metal pieces.

Furthermore, the bottom of the spring contact piece is provided with a semicircular bulge.

Furthermore, the first unit, the second unit and the third unit are respectively provided with a partition plate between each two units, and the partition plates and the base are integrally formed by injection molding.

Furthermore, the first phase incoming line is connected in series, the second phase incoming line is connected in series, and the third phase incoming line is connected in series.

Furthermore, the three first outgoing lines are connected in series, the three second outgoing lines are connected in series, and the three third outgoing lines are connected in series.

The invention has the beneficial effects that: the utility model provides a commutation switch, the three-phase advances, and the three-phase goes out, and cooperation zero line constitutes multi-user power consumption jointly, adopts mechanical interlocking structure again, effectively prevents the condition that two-phase was got the electricity simultaneously, prevents the short circuit, increases protect function, and can be according to the demand of reality, and the electricity is got in the nimble adjustment.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is a block diagram of the present invention with the housing cover removed;

FIG. 3 is a schematic view of the present invention with the housing removed;

FIG. 4 is a schematic diagram of the present invention with the circuit board removed;

FIG. 5 is a schematic view of the base and retaining box connection of the present invention;

FIG. 6 is an enlarged view of area A of FIG. 5 in accordance with the present invention;

FIG. 7 is a view of the third phase module of the present invention with the upper cover removed;

FIG. 8 is an enlarged view of area B of FIG. 7 in accordance with the present invention;

FIG. 9 is a right side view of the invention with the housing removed;

FIG. 10 is an enlarged view of the invention taken from area C of FIG. 9;

FIG. 11 is an enlarged view of region D of FIG. 10 in accordance with the present invention;

FIG. 12 is a block diagram of a third phase module mechanical interlock of the present invention;

fig. 13 is an enlarged view of region E of fig. 12 in accordance with the present invention.

Fig. 14 is a structural view of an interlock mechanism of the present invention.

Detailed Description

Example 1

As shown in fig. 1 to 14, a phase change switch includes a housing 1, a wire inlet end 2 and a wire outlet end 3 are disposed on two sides of the housing 1, the wire inlet end 2 and the wire outlet end 3 are respectively disposed with three-phase electric wiring holes 4, a switch body 5 is installed in the housing 1, the switch body 5 includes three first phase modules 6, second phase modules 7 and third phase modules 8 with the same structure, the first phase modules 6, the second phase modules 7 and the third phase modules 8 respectively include a circuit board 12 and three first units 9, second units 10 and third units 11 with the same structure, the first units 9, the second units 10 and the third units 11 respectively include a base 13, an upper cover 14, a wire inlet contact piece 15, a wire outlet contact piece 16 and a relay 17, the relay 17 is fixed on the upper cover 14, two power-on pins 18 of the relay 17 are connected with the circuit board 12, the upper and lower two stages of the relay 17 are respectively fixed with a first fixed block 19, two movable clamping connection pieces 20 are arranged on the first fixed blocks 19, the upper and lower ends of each switch piece 20 are respectively provided with a first clamping groove 21, the first clamping groove 21 is movably connected with the first fixed block 19, the front surface of each switch piece 20 is provided with a first clamping block 22, the bottom of the incoming line contact piece 15 is fixed with a spring contact piece 23, the front end of the spring contact piece 23 is clamped with a second fixed block 24, the upper part of the second fixed block 24 is provided with a third fixed block 25 and a second clamping groove 26, the second clamping groove 26 is internally clamped with the first clamping block 22, the bottom of the front end of the spring contact piece 23 and the upper part of the rear end of the outgoing line contact piece 16 are provided with corresponding contacts 27, the base 13 is clamped with a mechanical interlocking structure, the mechanical interlocking structure comprises a fixed box 28, the fixed box 28 is fixed with a first interlocking block, the fixed boxes 28 on both sides of the first rotating shaft 29 are respectively fixed with a second interlocking block 33 and a third interlocking block 34 through a second rotating shaft 31 and a third rotating shaft 32, the two ends of the first interlocking block 30, the second interlocking block 33 and the third interlocking block 34 are respectively provided with an interlocking angle 35, the interlocking angles 35 at the two ends of the first interlocking block 30 are positioned below the third fixed blocks 25 of the first unit 9 and the third unit 11, the interlocking angles 35 at the two ends of the second interlocking block 33 are positioned below the third fixed blocks 25 of the first unit 9 and the second unit 10, the interlocking angles 35 at the two ends of the third interlocking block 34 are positioned below the third fixed blocks 25 of the second unit 10 and the third unit 11, the incoming lines 15 of the first unit 9 of the first phase module 6, the second phase module 7 and the third phase module 8 are respectively connected with a first incoming line 36, the incoming lines 15 of the second unit 10 are respectively connected with a second phase contact piece incoming line 37, the incoming line contact pieces 15 of the third unit 11 are respectively connected with a third incoming line 38, the outgoing line contact pieces 16 of the first unit 9, the second unit 10 and the third unit 11 of the first phase module 6 are respectively connected with a first outgoing line 39, the outgoing line contact pieces 16 of the first unit 9, the second unit 10 and the third unit 11 of the second phase module 7 are respectively connected with a second outgoing line 40, and the outgoing line contact pieces 16 of the first unit 9, the second unit 10 and the third unit 11 of the third phase module 8 are respectively connected with a third outgoing line 41.

The switch piece 20, the contact 27, the incoming line contact piece 15, the outgoing line contact piece 16 and the spring contact piece 23 are metal pieces.

The bottom of the spring contact piece 23 is provided with a semicircular bulge 42.

The first unit 9, the second unit 10 and the third unit 11 are respectively provided with a partition plate 43 between each two units, and the partition plate 43 and the base 13 are formed by integral injection molding.

The first phase incoming line 36 is connected in series, the second phase incoming line 37 is connected in series, and the third phase incoming line 38 is connected in series.

The three first outgoing lines 39 are connected in series, the three second outgoing lines 40 are connected in series, and the three third outgoing lines 41 are connected in series.

The specific working principle is as follows: the first phase incoming line 36 is connected in series, the second phase incoming line 37 is connected in series, the third phase incoming line 38 is connected in series, when electricity is needed, the relay is controlled to be electrified through the program control of the circuit board, after the relay is electrified, the coil of the relay pulls the switch part under the action of the magnetic field to stretch the switch part, so that the second fixed block is pulled to move downwards, the spring contact piece is pressed downwards, the spring contact piece is contacted with the contact on the outgoing line contact piece, the circuit is conducted, the relay of one unit in one module is always kept to be electrified, the relays of other two units are not electrified, specifically, when the relay of the first unit is electrified, the second fixed block is pulled to move downwards, the third fixed block on the second fixed block is pressed downwards to be contacted with and pressed downwards by the interlocking angle at the left end of the first interlocking block and the interlocking angle at the left end of the second interlocking block, the first unit is connected, the interlocking angle at the right end of the first interlocking block and, the third fixing blocks of the second unit and the third unit are propped against, the second fixing blocks of the second unit and the third unit are prevented from being pressed downwards, and a circuit is connected; similarly, when the relay of the second unit is electrified, the second fixed block is pulled to move downwards, the third fixed block on the second fixed block is pressed down to be contacted with the interlocking angle at the right end of the second interlocking block and the interlocking angle at the left end of the third interlocking block and is pressed down, the interlocking angle at the left end of the second interlocking block and the interlocking angle at the right end of the third interlocking block rise to prop against the third fixed blocks of the first unit and the third unit, and the first unit and the third unit are prevented from being connected; similarly, when the relay of the third unit is electrified, the second fixed block is pulled to move downwards, the third fixed block on the second fixed block is pressed downwards to be contacted with the interlocking angle at the right ends of the first interlocking block and the third interlocking block and is pressed downwards, the third unit is connected, the interlocking angle at the left ends of the first interlocking block and the third interlocking block is lifted to abut against the third fixed block of the second unit of the first unit, the first unit and the second unit are prevented from being connected, only one unit in one module is always connected, the other two units are not connected, and the short circuit is prevented, so that the electrification of the relay in each module can be flexibly controlled, the electrification units in the corresponding modules can be flexibly controlled, the electricity can be taken more conveniently and freely, for example, when the first phase electricity in the first phase module is taken, the first unit of the first phase module is controlled to be connected only through the program of the circuit board, if the power load is high and the first phase power in the second phase module needs to be taken, the first unit in the second phase module is controlled to be connected through the program of the circuit board, of course, the first unit in the third phase can also be controlled to be connected, meanwhile, when the second phase electricity is needed, only the second unit needs to be controlled to be electrified, and when the third phase electricity is removed, only the third unit needs to be controlled to be electrified, the phase electricity in the three modules can be flexibly adjusted according to the actual electricity consumption requirement, only one phase electricity is connected in the three modules all the time, the condition that the two phases are connected and short circuit occurs is prevented, the inlet end can be matched with a plastic shell breaker for carrying out circuit breaking protection, and each time the outlet end is matched with a zero line, the system can be suitable for multiple users, and can adopt shunting according to actual conditions, so long as the power load is enough, the system can be divided into more users for use.

The commutation switch of this embodiment, the three-phase advances, and the three-phase goes out, and cooperation zero line constitutes multi-user power consumption jointly, adopts mechanical interlocking structure again, effectively prevents the condition of two-phase electric power of getting simultaneously, prevents the short circuit, increases protect function, and can be according to the demand of reality, and the electricity is got in the nimble adjustment.

Claims

1. A phase change switch, characterized in that it comprises a casing (1), and an incoming wire end (2) and an outgoing wire end (3) are provided on both sides of the casing (1), and the incoming wire end (2) and The outlet end (3) is respectively provided with three three-phase electrical wiring holes (4), a switch body (5) is installed in the casing (1), and the switch body (5) includes three first-phase modules with the same structure (6), a second phase module (7) and a third phase module (8), the first phase module (6), the second phase module (7) and the third phase module (8) respectively comprise circuit boards ( 12) and three first unit (9), second unit (10) and third unit (11) with the same structure, the first unit (9), second unit (10) and third unit (11) ) respectively comprise a base (13), an upper cover (14), an incoming line contact piece (15), an outgoing line contact piece (16) and a relay (17), the relay (17) is fixed on the upper cover (14), so The two energized pins (18) of the relay (17) are connected to the circuit board (12) line, and the upper and lower stages of the relay (17) are respectively fixed with first fixing blocks (19), two of the first fixing blocks A switch member (20) is movably clamped on the block (19), and a first card slot (21) is respectively opened at the upper and lower ends of the switch member (20). The first card slot (21) and the first fixing block (19) movably connected, a first block (22) is opened on the front of the switch element (20), a spring contact piece (23) is fixed at the bottom of the incoming wire contact piece (15), and the spring contact piece (23) The front end is clamped with a second fixing block (24), and a third fixing block (25) and a second clamping slot (26) are provided on the upper part of the second fixing block (24). A first clamping block (22) is clamped, the bottom of the front end of the spring contact piece (23) and the upper part of the rear end of the outgoing contact piece (16) are provided with corresponding contacts (27), and the base (13) is clamped on the A mechanical interlocking structure is connected, and the mechanical interlocking structure includes a fixing box (28), the fixing box (28) is fixed with a first interlocking block (30) through a first rotating shaft (29), and the first rotating shaft (29) The second interlocking block (33) and the third interlocking block (34) are respectively fixed on the fixing boxes (28) on both sides through the second rotating shaft (31) and the third rotating shaft (32). An interlocking block (30), a second interlocking block (33) and a third interlocking block (34) are respectively provided with interlocking corners (35) at both ends, and the two ends of the first interlocking block (30) are The locking corners (35) are located below the third fixing blocks (25) of the first unit (9) and the third unit (11), and the interlocking corners (35) at both ends of the second interlocking block (33) are located at the first Below the third fixing blocks (25) of the unit (9) and the second unit (10), the interlocking corners (35) at both ends of the third interlocking block (34) are located at the second unit (10) and the third unit Below the third fixed block (25) of (11), the first unit (9) of the first phase module (6), the second phase module (7) and the third phase module (8) The incoming line contact pieces (15) of the second unit (10) are respectively connected to the first phase incoming line (36), the incoming line contact pieces (15) of the second unit (10) are respectively connected to the second phase incoming line (37), the third The incoming line contact pieces (15) of the unit (11) are respectively connected to the incoming line of the third phase (38), and the first unit (9), the second unit (10) and the third unit of the first phase module (6) The outgoing line contact pieces (16) of (11) are respectively connected to the first outgoing lines (39), and the first unit (9), the second unit (10) and the third unit (11) of the second phase module (7) The outgoing line contact pieces (16) are respectively connected to the second outgoing lines (40), and the outgoing line contact pieces ( 16) Connect the third outlet wires (41) respectively.

2. A phase change switch according to claim 1, characterized in that: the switch element (20), the contact (27), the incoming wire contact sheet (15), the outgoing wire contact sheet (16), and the spring contact sheet (23) is a metal part.

3 . The phase change switch according to claim 1 , wherein a semicircular protrusion ( 42 ) is provided at the bottom of the spring contact piece ( 23 ). 4 .

The commutation switch according to claim 1, characterized in that: partitions ( 43), and the partition plate (43) and the base (13) are integrally injection-molded.

5 . The commutation switch according to claim 1 , wherein the first phase input line ( 36 ) is connected in series, the second phase input line ( 37 ) is connected in series, and the third phase input line ( 37 ) is connected in series. 6 . Lines (38) are connected in series.

The commutation switch according to claim 1, characterized in that: three first outlet wires (39) are connected in series, three second outlet wires (40) are connected in series, and three third outlet wires (41) are connected in series. ) are connected in series.