CN117012568A - Automatic change-over switch - Google Patents
Automatic change-over switch Download PDFInfo
- Publication number
- CN117012568A CN117012568A CN202211506825.1A CN202211506825A CN117012568A CN 117012568 A CN117012568 A CN 117012568A CN 202211506825 A CN202211506825 A CN 202211506825A CN 117012568 A CN117012568 A CN 117012568A
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- Prior art keywords
- power supply
- main shaft
- operating mechanism
- switching
- base
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- 230000007935 neutral effect Effects 0.000 claims abstract description 41
- 238000004146 energy storage Methods 0.000 claims description 26
- 230000008033 biological extinction Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
Classifications
-
- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
-
- 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
-
- 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
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an automatic transfer switch, which comprises an integrated base, wherein a first power supply operating mechanism and a second power supply operating mechanism are reversely arranged on the integrated base by taking a horizontal central line X of the base as a reference, and are centrally arranged on a vertical central line relative to a vertical central line Y of the base; the automatic transfer switch is sequentially neutral pole N pole, phase pole A, phase pole B and phase pole C from left to right; the first power supply operating mechanism manual operating mechanism is arranged at the phase pole A, and the second power supply operating mechanism manual operating mechanism is arranged at the phase pole B; the device also comprises neutral line overlapping devices and interlocking components which are respectively arranged at the left side and the right side of the base; the neutral line overlapping device is arranged on the left side of the base and is positioned above the neutral electrode N. The positioning of the operating mechanism of the invention allows sufficient space to be reserved on both sides of the base for the placement of the neutral wire overlap device and interlock assembly.
Description
Technical Field
The invention relates to the field of transfer switches, in particular to an automatic transfer switch.
Background
In the prior art, the low-voltage dual-power automatic transfer switch with higher current level has the problems of large volume and heavy weight, and cannot be installed and used by using a standard power distribution cabinet, because the common derivative transfer switch consists of two separated load switches or circuit breakers, the occupied space of the switch is larger, and in addition, because of field installation and after-demand installation of an interlocking device, the installation level of a client is required to be high.
In order to solve the problems, many manufacturers solve the problems by adopting a mode of assembling two switches into a whole. Although the method can solve the problem of no need of additional interlocking on site of clients, the assembling difficulty of the assembling method is high, and the assembling parts are required to be additionally added, so that the production is not facilitated. In particular, the automatic transfer switch formed into a whole by the existing assembly mode is realized on the basis of the existing universal circuit breaker or isolating switch, and is limited by the limitation of the layout of the inherent operation part of the existing universal circuit breaker or isolating switch, so that the space constraint of the neutral line overlapping function of the automatic transfer switch is caused, and the design of reliability is not facilitated.
The neutral pole and the phase pole of the common automatic transfer switch have the same structure, so that the closing and opening states of each pole in the transfer process are consistent, namely, the poles are simultaneously closed and opened; in the process of switching the two power supplies by the automatic transfer switch, a transient moment occurs when the neutral pole of the load side is not connected with the neutral pole of any power supply in the process of switching the neutral pole of the front power supply to the neutral pole of the rear power supply. In some special power distribution occasions, such as a data machine room, an automatic transfer switch is usually selected for use in combination with an Uninterruptible Power Supply (UPS), wherein multiple paths of commercial power sources or dedicated generators are backed up, the power sources are switched by the automatic transfer switch, and a load end is connected to a power source end through the UPS in the data center, so that the commercial power can supply power to the load. The transient moment when the neutral pole of the UPS is not connected to the neutral pole of any power source can cause a change in the neutral pole of the UPS relative to ground, which can adversely affect the electrical load devices, and even cause restarting or data corruption of the load devices, such as servers, etc. In order to achieve a situation in which the neutral line is not broken during the conversion, a neutral line overlap structure needs to be provided. The design of the neutral conductor overlap structure requires space above the N phase of the neutral conductor. The automatic transfer switch is generally provided with a neutral pole N and a phase pole A, B, C from left to right, and a first power supply and a second power supply from top to bottom. The first power operation portion is provided in the B-phase and the C-phase, and the second power operation portion is provided in the N-phase and the a-phase. The existing arrangement occupies the space above the N phase of the second power supply, which is unfavorable for the design of the neutral line overlapping structure.
Disclosure of Invention
The invention aims to: in order to solve the problems in the prior art, the invention provides the automatic transfer switch, assembly is not needed, and the layout design is beneficial to implementing the neutral line overlapping design and the interlocking design.
The technical scheme is as follows: in order to achieve the above purpose, the present invention adopts the following technical scheme:
an automatic transfer switch comprises an integrated base, a left side plate and a right side plate which are arranged on two sides respectively, a first power arc-extinguishing cover cap and a second power arc-extinguishing cover cap which are arranged on the upper side and the lower side respectively, a first power operating mechanism and a second power operating mechanism;
the first power supply operating mechanism and the second power supply operating mechanism are reversely arranged on the integral base by taking the horizontal central line X of the base as a reference, and the first power supply operating mechanism and the second power supply operating mechanism are centrally arranged on a vertical central line relative to the vertical central line Y of the base;
the first power supply operating mechanism comprises a first power supply manual operating mechanism and a first power supply electric energy storage mechanism; the second power supply operating mechanism comprises a second power supply manual operating mechanism and a second power supply electric energy storage mechanism; the automatic transfer switch is sequentially neutral pole N pole, phase pole A, phase pole B and phase pole C from left to right; the first power supply manual operation mechanism is arranged at the phase pole A, and the second power supply manual operation mechanism is arranged at the phase pole B;
the device also comprises neutral line overlapping devices and interlocking components which are respectively arranged at the left side and the right side of the base; the neutral line overlapping device is arranged on the left side of the base and is positioned above the central pole N.
In the dual-power automatic transfer switch in the prior art, neutral N poles and phase poles (A, B, C three phases) are sequentially arranged from left to right, for a first power operating mechanism, a general operating mechanism manual operating mechanism is arranged at a phase pole B position, the position of the first power operating mechanism manual operating mechanism is arranged at an A phase position, and meanwhile, a second power operating mechanism manual operating mechanism is arranged at a phase pole B position. The positioning of the operating mechanism allows sufficient space to be reserved on both sides of the base for the placement of the neutral wire overlap device and interlock assembly.
Further, the first power supply operating mechanism further comprises a first power supply main shaft and a first power supply main shaft cantilever; after the first power supply electric energy storage mechanism finishes energy storage or manual energy storage, the first power supply operating mechanism controls the first power supply switch to be switched on and off through a first power supply switching-on and switching-off coil or controls the first power supply switch to be switched on and off through a switching-on and switching-off button; the second power supply operating mechanism further comprises a second power supply main shaft and a second power supply main shaft cantilever; and the second power supply operating mechanism controls the second power supply switch to be switched on and switched off through the second power supply switching-on/off coil or the switching-on/off button to control the second power supply switch to be switched on and switched off after the second power supply electric energy storage mechanism finishes energy storage or manual energy storage.
In some embodiments, the interlocking component comprises a first interlocking component arranged on the cantilever of the first power supply main shaft and a second interlocking component arranged on the cantilever of the second power supply main shaft, when the first power supply mechanism is switched on, the first power supply main shaft rotates anticlockwise to drive the first interlocking component to move and then prop against the switching-off lever of the second power supply mechanism, so that the switching-on of the second power supply mechanism is prevented; the second interlocking component is linked with the second power supply main shaft, and after the second power supply main shaft rotates clockwise to switch on, the second power supply main shaft drives the second interlocking component to move and then props against the first power supply mechanism switching-off lever to prevent the first power supply mechanism from switching on.
In some embodiments, the interlocking component is disposed between the first power supply spindle and the second power supply spindle, where the first interlocking component is disposed on the first power supply spindle cantilever, and when the first power supply mechanism is switched on, the first power supply spindle drives the first power supply spindle cantilever to rotate anticlockwise so as to drive the first interlocking component to move and then prop against the second power supply mechanism switching-off lever, so as to prevent the second power supply mechanism from switching on; the second interlocking component is arranged on the second power supply main shaft cantilever and is linked with the second power supply main shaft, when the second power supply main shaft is switched on, the second power supply main shaft drives the second power supply main shaft cantilever to rotate clockwise, and the second power supply main shaft drives the second interlocking component to move and then props against the first power supply mechanism switching-off lever to prevent the first power supply mechanism from switching on.
Furthermore, the first power supply main shaft cantilever drives the first power supply movable contact part to rotate through the first power supply connecting rod, so that the switching-on and switching-off operation of the first power supply loop is realized; the second power supply main shaft cantilever drives the second power supply movable contact part to rotate through the second power supply connecting rod, so that the connection and disconnection operation of the second power supply loop is realized.
Furthermore, the wiring groove is arranged between the interlocking mechanism and the first power supply operating mechanism as well as between the interlocking mechanism and the second power supply operating mechanism, so that wiring is convenient, and the overall layout is neat and attractive.
In some embodiments, the wiring groove is provided with opposite bosses, so that the second power supply opening and closing coil lead wire and other lead wires are kept in the wiring groove, and two ends of the wiring groove are provided with mounting holes for being fixed on the base.
In some embodiments, the wiring groove is provided with a boss which is staggered, so that the second power supply switching-on/off coil lead wire and other lead wires are kept in the wiring groove, and two ends of the wiring groove are provided with mounting holes for being fixed on the base.
Further, the neutral line overlapping device is arranged on the U-shaped bracket, and is integrally arranged on the base through the U-shaped bracket.
Further, a first power supply identifier 'I' and a second power supply identifier 'II' are arranged on the base. And the vertical assembly direction is identified during assembly, so that assembly errors are prevented.
The beneficial effects are that: the invention has the following advantages:
(1) The layout of the invention reserves sufficient space for the interlocking component, the neutral line overlapping component and the wiring, which is beneficial to improving the reliability of the product.
(2) The integrated base is arranged, so that the interlocking component and the neutral line overlapping component can be reliably positioned, the debugging difficulty is low, the production efficiency is improved, and the tissue production is facilitated.
Drawings
Fig. 1 is a schematic overall structure of embodiment 1 and embodiment 2 of the present invention;
FIG. 2 is a schematic diagram of the internal structure of embodiment 1 of the present invention;
FIG. 3 is a schematic view of an interlocking assembly according to embodiment 1 of the present invention;
FIG. 4 is a schematic view of a base structure of embodiment 1 of the present invention;
FIG. 5 is a schematic view of a first power supply operating mechanism according to embodiments 1 and 2 of the present invention;
FIG. 6 is a schematic diagram of a second power supply operating mechanism according to embodiments 1 and 2 of the present invention;
FIG. 7 is a schematic diagram of a wiring groove according to embodiment 1 of the present invention;
FIG. 8 is a schematic diagram of a wiring groove according to embodiment 3 of the present invention;
FIG. 9 is a schematic view showing the structure of an interlock assembly according to embodiment 2 of the present invention;
fig. 10 is a schematic diagram of embodiment 2 of the present invention, in which the first power source is in the on position and the second power source is in the off position.
In the figure: 1. 1-1 parts of base, 1-2 parts of first power supply identifiers and second power supply identifiers;
2. the first power supply operating mechanism 201, the first power supply manual operating mechanism 202, the first power supply electric energy storage mechanism 203 and the first power supply main shaft; 203-1, a first power supply spindle cantilever;
3. the first power supply operating mechanism 301, the second power supply manual operating mechanism 302, the second power supply electric energy storage mechanism 303, the second power supply main shaft 303-1 and the second power supply main shaft cantilever;
4. a left side plate; 5. a right side plate; 6. a first power supply arc extinction cover cap; 7. a second power supply arc extinction cover cap; 8. an interlock assembly; 9. a neutral line overlapping element; 901. the U-shaped bracket, 10, a wiring groove, 101, a bulge, 102 and a mounting hole;
13. a first power supply opening and closing coil; 14. a second power supply opening and closing coil; 16. a second power supply opening and closing coil lead wire; 17. the first power supply mechanism brake separating lever; 18. the second power supply mechanism is provided with a brake separating lever; 19. a first power supply link; 20. a first power movable contact portion; 21. a second power supply link; 22. a second power movable contact portion.
Detailed Description
Example 1:
referring to fig. 1-7, the present invention discloses an automatic transfer switch, wherein fig. 1 is an overall layout, and is combined with fig. 1 and 2, and includes an integrated base 1, a left side plate 4 and a right side plate 5 respectively provided with two sides, a first power arc-extinguishing cover 6 and a second power arc-extinguishing cover 7 respectively provided with upper and lower sides, a first power operating mechanism 2 and a second power operating mechanism 3, wherein the first power operating mechanism 2 and the second power operating mechanism 3 are reversely arranged on the base 1 with reference to a horizontal center line "X" of the base 1, and are centrally arranged on a vertical center line with respect to a vertical center line "Y" of the base 1.
The automatic transfer switch is sequentially neutral pole N pole, phase pole A, phase pole B and phase pole C from left to right; the first power supply operating mechanism 2 is arranged at the phase pole A, and the second power supply operating mechanism 3 is arranged at the phase pole B;
referring to fig. 5-6, the first power operating mechanism 2 includes a first power manual operating mechanism 201, a first power electric energy storage mechanism 202, a first power spindle 203, and a first power spindle cantilever 203-1, where the first manual operating mechanism 201 is used for manual energy storage and switching operation of the first power mechanism 2, the first power electric energy storage mechanism 202 is used for electric energy storage of the first power operating mechanism 2, and the switching of the first power switch is controlled by the first power switching coil 13. The second power supply operating mechanism 3 comprises a second manual operating mechanism 301, a second electric energy storage mechanism 302, a second power supply main shaft 303 and a second power supply main shaft cantilever 303-1, wherein the second manual operating mechanism 301 is used for manual energy storage and switching-on and switching-off operation of the second power supply mechanism 3, the second electric energy storage mechanism 302 is used for electric energy storage of the second power supply operating mechanism 3, and the switching-on and switching-off of the second power supply switch is controlled through the second power supply switching-on and switching-off coil 14.
Referring to fig. 2, the present invention further includes a neutral wire overlapping device 9 and an interlocking assembly 8 disposed on the left and right sides of the base 1, wherein the neutral wire overlapping device 9 is disposed on the left side of the base 1 and above the neutral pole N, the neutral wire overlapping device 9 is disposed on a U-shaped bracket 901, and is integrally mounted on the base 1 through the U-shaped bracket 901.
Referring to fig. 3, the interlocking assembly 8 includes a first interlocking assembly 801 and a second interlocking assembly 802, when the first power mechanism is switched on, the first power main shaft 203 rotates counterclockwise to drive the first interlocking assembly 801 to move and then prop against the second power opening lever 18, so as to prevent the second power mechanism from being switched on; the second interlock assembly 802 is linked with the second power supply spindle 303, and after the second mechanism spindle is switched on and rotates clockwise, the second power supply spindle 303 drives the second interlock assembly 802 to move and then prop against the first power supply mechanism switching-off lever 17, so that the first power supply mechanism 2 is prevented from being switched on.
Referring to fig. 4, the base 1 is further provided with a first power supply identifier "I"1-1 and a second power supply identifier "II"1-2, so as to identify the vertical assembly direction during assembly and prevent assembly errors.
Referring to fig. 2 and 7, the wiring groove 10 is provided with opposite bosses 101, so that the lead wire 16 of the second power supply switching-on/off coil and other lead wires are kept inside the wiring groove 10, and meanwhile, mounting holes 102 are formed at two ends of the wiring groove 10 to facilitate fixing on the base.
In the dual-power automatic transfer switch in the prior art, neutral N poles and phase poles (A, B, C three phases) are sequentially arranged from left to right, for a first power operating mechanism, a general operating mechanism manual operating mechanism is arranged at a phase pole B position, the position of the first power operating mechanism manual operating mechanism is arranged at an A phase position, and meanwhile, a second power operating mechanism manual operating mechanism is arranged at a phase pole B position. The arrangement of the operating mechanism positions ensures that sufficient space is reserved on two sides of the base for the arrangement of the neutral line overlapping device and the interlocking component, thereby being beneficial to improving the reliability of products.
Example 2:
other embodiments are the same as example 1, except that the interlock assembly 8 is structured differently, as shown with reference to figures 9-10,
the interlocking component 8 is disposed between the first power supply main shaft 203 and the second power supply main shaft 303, where the first interlocking component 801 is disposed on the first power supply main shaft cantilever 203-1, when the first power supply mechanism 2 is switched on, the first power supply main shaft 203 drives the first power supply main shaft cantilever 203-1 to rotate anticlockwise so as to drive the first interlocking component 801 to move and then prop against the second power supply brake release lever 18, so that the second power supply mechanism 3 is prevented from being switched on; the second interlock assembly 802 is linked with the second power supply spindle 303, when the second power supply spindle 303 is switched on, the second power supply spindle 303 drives the second power supply spindle cantilever 303-1 to rotate clockwise, and the second power supply spindle 303 drives the second interlock assembly 802 to move and then prop against the first power supply mechanism 2 switching-off lever 17, so that the first power supply mechanism 2 is prevented from being switched on.
Referring to fig. 10, the first power main shaft cantilever 203-1 drives the first power movable contact portion 20 to rotate through the first power connecting rod 19, so as to realize the on and off operations of the first power circuit; the second power supply main shaft cantilever 303-1 drives the second power supply movable contact part 22 to rotate through the second power supply connecting rod 21, so that the connection and disconnection operation of the second power supply loop is realized.
Example 3:
referring to fig. 8, in another embodiment of the wiring groove 10, a boss 101 is provided in a staggered manner, so that the lead 16 and other leads of the second power supply switching-on/off coil are kept inside the wiring groove 10, and meanwhile, mounting holes 102 are provided at two ends of the wiring groove 10, so that the wiring groove is conveniently fixed on the base.
Claims (10)
1. The utility model provides an automatic change-over switch, includes the base of integral type, divides left side board and the right side board of establishing both sides, divides first power arc extinction shroud and the second power arc extinction shroud of establishing the upper and lower side, first power operating device and second power operating device, its characterized in that:
the first power supply operating mechanism and the second power supply operating mechanism are reversely arranged on the integral base by taking the horizontal central line X of the base as a reference, and the first power supply operating mechanism and the second power supply operating mechanism are centrally arranged on a vertical central line relative to the vertical central line Y of the base;
the first power supply operating mechanism comprises a first power supply manual operating mechanism and a first power supply electric energy storage mechanism; the second power supply operating mechanism comprises a second power supply manual operating mechanism and a second power supply electric energy storage mechanism; the automatic transfer switch is sequentially neutral pole N pole, phase pole A, phase pole B and phase pole C from left to right; the first power supply manual operation mechanism is arranged at the phase pole A, and the second power supply manual operation mechanism is arranged at the phase pole B;
the device also comprises neutral line overlapping devices and interlocking components which are respectively arranged at the left side and the right side of the base; the neutral line overlapping device is arranged on the left side of the base and is positioned above the central pole N.
2. The automatic transfer switch of claim 1, wherein: the first power supply operating mechanism further comprises a first power supply main shaft and a first power supply main shaft cantilever; after the first power supply electric energy storage mechanism finishes energy storage or manual energy storage, the first power supply operating mechanism controls the first power supply switch to be switched on and off through a first power supply switching-on and switching-off coil or controls the first power supply switch to be switched on and off through a switching-on and switching-off button; the second power supply operating mechanism further comprises a second power supply main shaft and a second power supply main shaft cantilever; and the second power supply operating mechanism controls the second power supply switch to be switched on and switched off through the second power supply switching-on/off coil or the switching-on/off button to control the second power supply switch to be switched on and switched off after the second power supply electric energy storage mechanism finishes energy storage or manual energy storage.
3. The automatic transfer switch of claim 2, wherein: the interlocking assembly comprises a first interlocking assembly arranged on the first power supply main shaft cantilever and a second interlocking assembly arranged on the second power supply main shaft cantilever, when the first power supply mechanism is switched on, the first power supply main shaft rotates anticlockwise to drive the first interlocking assembly to move and then prop against the second power supply mechanism switching-off lever, so that the second power supply mechanism is prevented from switching on; the second interlocking component is linked with the second power supply main shaft, and after the second power supply main shaft rotates clockwise to switch on, the second power supply main shaft drives the second interlocking component to move and then props against the first power supply mechanism switching-off lever to prevent the first power supply mechanism from switching on.
4. The automatic transfer switch of claim 2, wherein: the first power supply main shaft drives the first power supply main shaft cantilever to rotate anticlockwise so as to drive the first interlocking component to move and then prop against the second power supply mechanism opening lever to prevent the second power supply mechanism from being closed; the second interlocking component is arranged on the second power supply main shaft cantilever and is linked with the second power supply main shaft, when the second power supply main shaft is switched on, the second power supply main shaft drives the second power supply main shaft cantilever to rotate clockwise, and the second power supply main shaft drives the second interlocking component to move and then props against the first power supply mechanism switching-off lever to prevent the first power supply mechanism from switching on.
5. An automatic transfer switch according to claim 3 or 4, wherein: the first power supply main shaft cantilever drives the first power supply movable contact part to rotate through the first power supply connecting rod, so that the switching-on and switching-off operation of the first power supply loop is realized; the second power supply main shaft cantilever drives the second power supply movable contact part to rotate through the second power supply connecting rod, so that the connection and disconnection operation of the second power supply loop is realized.
6. The automatic transfer switch of claim 1, wherein: and a wiring groove is arranged between the interlocking mechanism and the first power supply operating mechanism and between the interlocking mechanism and the second power supply operating mechanism.
7. The automatic transfer switch of claim 6, wherein: the wiring groove is provided with opposite bosses, so that the second power supply opening and closing coil lead wires and other lead wires are kept in the wiring groove, and mounting holes used for being fixed on the base are formed in the two ends of the wiring groove.
8. The automatic transfer switch of claim 6, wherein: the wiring groove is provided with a boss which is staggered, so that the second power supply switching-on/off coil lead and other leads are kept in the wiring groove, and mounting holes used for being fixed on the base are formed in the two ends of the wiring groove.
9. The automatic transfer switch of claim 1, wherein: the neutral line overlapping device is arranged on the U-shaped bracket and is integrally arranged on the base through the U-shaped bracket.
10. The automatic transfer switch of claim 1, wherein: the base is provided with a first power supply identifier I and a second power supply identifier II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211506825.1A CN117012568A (en) | 2022-11-29 | 2022-11-29 | Automatic change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211506825.1A CN117012568A (en) | 2022-11-29 | 2022-11-29 | Automatic change-over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117012568A true CN117012568A (en) | 2023-11-07 |
Family
ID=88567853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211506825.1A Pending CN117012568A (en) | 2022-11-29 | 2022-11-29 | Automatic change-over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117012568A (en) |
-
2022
- 2022-11-29 CN CN202211506825.1A patent/CN117012568A/en active Pending
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