CN213278939U - Switch cabinet bypass control drawer structure - Google Patents
Switch cabinet bypass control drawer structure Download PDFInfo
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- CN213278939U CN213278939U CN202021190240.XU CN202021190240U CN213278939U CN 213278939 U CN213278939 U CN 213278939U CN 202021190240 U CN202021190240 U CN 202021190240U CN 213278939 U CN213278939 U CN 213278939U
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- drawer
- primary
- bypass control
- movable plug
- wire
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Abstract
The utility model discloses a switch cabinet bypass control drawer structure, which comprises a drawer body, wherein a primary incoming line movable plug, a primary outgoing line movable plug, a secondary line plug, a plastic shell switch and a contactor are arranged in the drawer body; one primary incoming line movable plug is arranged, and the main circuit is connected with the primary incoming line movable plug; the number of the primary outgoing line movable plugs is two, one primary outgoing line movable plug is connected with a load, and the other primary outgoing line movable plug is connected with the load or serves as a line inlet end of the primary line inlet bypass control circuit. The utility model discloses utilize the characteristics that two are qualified for the next round of competitions of an inlet wire, set up corresponding binding post on the cubical switchboard, link together drawer circuit and main circuit and load and realize the load drive, two the same drawers just can constitute "one drags two" bypass control system.
Description
Technical Field
The utility model belongs to low-voltage switchgear equipment, concretely relates to cubical switchboard bypass control drawer structure.
Background
In the existing low-voltage complete switch equipment, two groups of plug-ins are arranged on a drawer and connected with an external circuit, one group of plug-ins is responsible for being connected with an incoming line power supply, and the other group of plug-ins is responsible for being connected with a load. The drawer generally has high applicability on a feed or motor control circuit, but has limitation in a motor control circuit adopting 'frequency conversion (soft) starting and bypass switching operation', and because a circuit of the bypass switching operation has the characteristics of 'one inlet wire and two outlet wires', the drawer structure is required to be provided with a group of inlet wire plug-ins, and the circuit requirements can be met by two groups of outlet wire plug-ins, so that the existing drawer structure needs to be improved.
Disclosure of Invention
In order to achieve the above object, the utility model provides a cubical switchboard bypass control drawer structure, this structure has an inlet wire, and two are qualified for the next round of competitions, and one of them is qualified for the next round of competitions and can connects the load, and another is qualified for the next round of competitions both can connect the load and also can connect an inlet wire and connect bypass control circuit, has one and drags two characteristics.
The utility model provides a technical scheme that above technical problem adopted as follows: the utility model provides a cubical switchboard bypass control drawer structure which characterized in that: the drawer comprises a drawer body, wherein a primary wire inlet movable plug, a primary wire outlet movable plug, a secondary wire plug, a plastic shell switch and a contactor are arranged in the drawer body; one primary wire-outgoing movable plug is arranged, and two primary wire-outgoing movable plugs are arranged; one of the primary outgoing line movable plugs is connected with a load, and the other primary outgoing line movable plug is connected with the load or a bypass control circuit.
Furthermore, the drawer body is of a square box type structure without an upper cover and composed of a drawer door plate, a drawer rear plate, two drawer side plates and a drawer bottom plate.
Furthermore, the primary wire inlet movable plug, the primary wire outlet movable plug and the secondary wire plug are arranged on the drawer rear plate; the contactor is arranged on the drawer bottom plate, a main contact of the contactor is connected with a primary incoming line movable plug through a wire, an auxiliary contact of the contactor is connected with a primary outgoing line movable plug through a wire, and a coil of the contactor is electrified by depending on the plastic shell switch; the plastic shell switch is installed on the bottom plate of the drawer and is controlled in a linkage mode through the operating handle, the connecting rod and the operating mechanism.
Further, the main circuit is connected with the primary incoming line movable plug.
Furthermore, a current transformer and a thermal relay are arranged on an outgoing line connected with the load.
Furthermore, a secondary contactor is arranged on an outlet line connected with the bypass control circuit.
Compared with the prior art, the beneficial effects of the utility model are embodied in: 1. the drawer type structure is adopted, each drawer unit has independent function, the corresponding wiring terminal is arranged on the switch cabinet, and the switch cabinet can be connected with the main circuit and the load in a plugging and unplugging manner through a plug, so that the circuit maintenance is facilitated; 2. the characteristic of one inlet wire and two outlet wires is utilized, one outlet wire is utilized to link a main circuit with a load to realize load driving, the other outlet wire is utilized to be connected with a primary inlet wire bypass control circuit to be used as a wire inlet end of the bypass control circuit, and two identical drawers can form a one-to-two bypass control system.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.
FIG. 1 is a top view of the drawer structure of the present invention;
FIG. 2 is a cross-sectional view A-A of the structure of FIG. 1;
FIG. 3 is a side view of the drawer structure of the present invention (a drawer side plate is removed);
fig. 4 is an electrical primary wiring diagram of the drawer of the present invention.
Detailed Description
The invention is described in detail below with reference to the drawings, which form a part hereof, and with reference to embodiments of the invention. However, it should be understood by those skilled in the art that the following examples are not intended to limit the technical solutions of the present invention, and all equivalent changes or modifications made in the spirit of the technical solutions of the present invention should be considered as falling within the protection scope of the present invention.
As shown in fig. 1, the switch cabinet bypass control drawer structure is: the device comprises a primary wire inlet movable plug 1, a primary wire outlet movable plug 2, a secondary wire plug 3, a plastic shell switch 4, a contactor 5, a drawer rear plate 6, a drawer side plate 7, a drawer bottom plate 8, a drawer door plate 9, an operating handle 10, an operating mechanism 11 and a connecting rod 12.
The drawer body is composed of a drawer door plate 9, a drawer back plate 6, two drawer side plates 7 and a drawer bottom plate 8, and is of a square box shape, and only an upper cover is not arranged; the drawer door plate 9 and the drawer back plate 6 are arranged in parallel in tandem, and the two drawer side plates 7 are connected between the two ends of the drawer door plate 9 and the drawer back plate 6 to form a square frame; the drawer bottom plate 8 is integrally laid at the bottom of a square frame formed by the drawer door plate 9, the drawer back plate 6 and the drawer side plate 7 and serves as a drawer bottom bearing plate.
On the basis of the drawer body, the primary incoming line movable plug 1, the primary outgoing line movable plug 2 and the secondary line plug 3 are arranged on the drawer rear plate 6, as shown in fig. 2 and 3, one primary incoming line movable plug 1 is arranged beside the primary outgoing line movable plug 2 and the secondary line plug 3; the primary outgoing line movable plugs 2 and the secondary line plugs 3 are located in the same row and are arranged up and down, and the number of the primary outgoing line movable plugs 2 is two, and the two primary outgoing line movable plugs are located below the secondary line plugs 3. The bypass control drawer is composed of a primary incoming line movable plug 1 and two primary outgoing line movable plugs 2 and has the characteristic of one incoming line and two outgoing lines. The secondary wire plug 3 is used for secondary control.
In addition, one of the primary outgoing movable plugs 2 can be used as a primary incoming plug according to requirements and is connected with a primary incoming bypass control circuit.
By utilizing the characteristic that the switch cabinet bypass controls one inlet wire and two outlet wires of the drawer, the corresponding plug connector wiring terminal is arranged on the switch cabinet body, and the drawer circuit is connected with the main circuit and the load together to realize load driving. Because the drawer is provided with one wire inlet end and two wire outlet ends, two identical drawers can form a one-to-two bypass control motor system (the one-to-two bypass control motor system is characterized in that a frequency converter is used for carrying out frequency conversion starting control on two motors).
Fig. 4 is an electrical primary wiring diagram of the switch cabinet bypass control drawer, which shows a one-in two-out wiring principle of a primary circuit, wherein the primary circuit is connected with a primary incoming movable plug 1 in the drawer through a line inlet end P1 to introduce current; the outlet terminals P2 and P3 are respectively connected with the two primary outlet movable plugs 2 in the drawer to lead out the current, and the outlet terminals P2 and P3 are externally connected with a load or can be used as primary inlet bypass control terminals. When the plastic casing switch 4 is closed, the contactor 5 is electrified, and the main contact and the auxiliary contact are contacted to supply power to a load; when the plastic shell switch 4 is switched off, the contactor 5 is powered off, the main contact and the auxiliary contact are bounced open, and the load is powered off.
Further, on one of the outgoing lines (P2 side) connected to the load, there are provided a current transformer CT and a thermal relay RJ for indirectly controlling the load.
Further, on an outgoing line (P3 side) connected to the bypass control circuit, a secondary contactor KM2 is provided for bypass control.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (5)
1. The utility model provides a cubical switchboard bypass control drawer structure which characterized in that: comprises a drawer body, a drawer body and a drawer body,
a primary wire inlet movable plug, a primary wire outlet movable plug, a secondary wire plug, a plastic shell switch and a contactor are arranged in the drawer body;
one primary wire-outgoing movable plug is arranged, and two primary wire-outgoing movable plugs are arranged;
one of the primary outgoing line movable plugs is connected with a load, and the other primary outgoing line movable plug is connected with the load or a bypass control circuit.
2. The switchgear bypass control drawer structure of claim 1, wherein: the drawer body is of a square box type structure without an upper cover and composed of a drawer door plate, a drawer back plate, two drawer side plates and a drawer bottom plate.
3. The switchgear bypass control drawer structure of claim 2, wherein: the primary wire inlet movable plug, the primary wire outlet movable plug and the secondary wire plug are arranged on the drawer rear plate;
the contactor is arranged on the drawer bottom plate, a main contact of the contactor is connected with a primary incoming line movable plug through a wire, an auxiliary contact of the contactor is connected with a primary outgoing line movable plug through a wire, and a coil of the contactor is electrified by depending on the plastic shell switch;
the plastic shell switch is installed on the bottom plate of the drawer and is controlled in a linkage mode through the operating handle, the connecting rod and the operating mechanism.
4. The switchgear bypass control drawer structure of claim 1, wherein: and a current transformer and a thermal relay are arranged on an outgoing line connected with the load.
5. The switchgear bypass control drawer structure of claim 1, wherein: and a secondary contactor is arranged on an outlet line connected with the bypass control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021190240.XU CN213278939U (en) | 2020-06-21 | 2020-06-21 | Switch cabinet bypass control drawer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021190240.XU CN213278939U (en) | 2020-06-21 | 2020-06-21 | Switch cabinet bypass control drawer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213278939U true CN213278939U (en) | 2021-05-25 |
Family
ID=75956698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021190240.XU Active CN213278939U (en) | 2020-06-21 | 2020-06-21 | Switch cabinet bypass control drawer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213278939U (en) |
-
2020
- 2020-06-21 CN CN202021190240.XU patent/CN213278939U/en active Active
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