CN216904403U

CN216904403U - Automatic power switching device with three incoming lines

Info

Publication number: CN216904403U
Application number: CN202123254991.0U
Authority: CN
Inventors: 崔鹏
Original assignee: Huaneng Henan Zhongyuan Gas Power Generation Co Ltd
Current assignee: Huaneng Henan Zhongyuan Gas Power Generation Co Ltd
Priority date: 2021-12-19
Filing date: 2021-12-19
Publication date: 2022-07-05
Anticipated expiration: 2031-12-19

Abstract

The utility model discloses a three-wire power supply automatic switching device, wherein an outer shell is hollow in an inner cavity and is provided with a front panel and a back panel; the control panel is arranged in the inner cavity of the outer shell and comprises a control module, a monitoring input module and a control output module which are connected with the control module, and the output end of the control output module is connected with the switch module through an execution module; the input end and the output end of the switch module are both provided with connectors; the connecting unit is arranged on the back panel, is connected to the connecting port and comprises a connecting seat and a clamping assembly arranged on the connecting seat; according to the utility model, the control panel is arranged in the outer shell, each module for realizing power supply switching is arranged on the control panel, each path of power inlet wire is connected with the input end of the switch module through the wiring unit, the control module monitors the on-off of each path of power supply through the monitoring input module, and the control module indirectly controls the execution module to automatically switch each path of switch module after processing, so that the power supply of the equipment is ensured.

Description

Automatic power switching device with three incoming lines

Technical Field

The utility model relates to the technical field of power supply incoming line switching control, in particular to a three-incoming line power supply automatic switching device.

Background

For a single bus connection, two power supplies are generally used for supplying power, namely one working power supply and one standby power supply. When the device works normally, the working power supply carries a bus load, and the standby power supply is separated. When the working power supply fails, the power supply switching device trips the working power supply and closes the standby power supply. For very important applications, 3 power supplies are provided on the bus. For 3-path power supplies, namely when any one path of power supply is closed to supply power, the other two paths of power supplies are in a separated state as standby power supplies. The traditional power supply switching device can only manage two paths of power supplies, and obviously cannot meet the requirement of switching 3 paths of power supplies.

Furthermore, the incoming line fault is one of the important reasons for causing the power supply fault, the incoming line fault comprises the connection of the power incoming line and the incoming line at the end part of the power switching device, and if the stable connection of the wiring part can be kept, the mistaken switching action of the power switching device can be reduced to a great extent.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the utility model.

The utility model is provided in view of the problems of the existing three-wire-inlet power supply automatic switching device.

Therefore, the utility model aims to provide a three-incoming-line power supply automatic switching device, which aims to provide a 3-path incoming-line power supply switching device which is convenient to use and can be tightly connected, and solve the problems that the line end is difficult to connect and the three-incoming-line power supply lines are difficult to switch mutually.

In order to solve the technical problems, the utility model provides the following technical scheme: the automatic power switching device comprises an outer shell, a control panel and a connecting unit, wherein the outer shell is hollow and is provided with a front side panel and a back panel; the control panel is arranged in the inner cavity of the outer shell and comprises a control module, a monitoring input module and a control output module which are connected with the control module, and the output end of the control output module is connected with the switch module through an execution module; the input end and the output end of the switch module are both provided with connectors; and the connecting unit is arranged on the back panel, is connected to the connecting port and comprises a connecting seat and a clamping assembly arranged on the connecting seat.

As a preferred scheme of the three-wire power supply automatic switching device of the present invention, wherein: the front side panel is provided with a display screen, an input key, a prompt lamp and a loudspeaker; the input keys are connected with the control input module on the control panel through wires; the display screen, the prompting lamp and the loudspeaker are connected with the control output module through wires.

As a preferred scheme of the three-wire power supply automatic switching device of the present invention, wherein: the monitoring input module is connected to the input end of the switch module, the input end of the monitoring input module is connected with an alternating current power supply signal from the input side of the switch module, and the power supply signal comprises a voltage signal and a current signal;

the execution module inputs the control signal output by the control output module to the switch module to control the switch module to act and switch, so that the switching selection of a power supply bus to a plurality of power supply incoming lines is realized;

and the power inlet wire is connected with the connecting port of the switch module through the wiring unit.

As a preferred scheme of the three-wire power supply automatic switching device of the present invention, wherein: the control panel is also provided with a communication module, the communication module is in wireless communication with an external monitoring center, and switching information of the incoming line power supply is transmitted to the monitoring center.

As a preferred scheme of the three-wire power supply automatic switching device of the present invention, wherein: the back panel is provided with a mounting groove, the connecting unit is mounted in the mounting groove, and the connecting seat is connected with the connecting port through a lead.

As a preferred scheme of the three-wire power supply automatic switching device of the present invention, wherein: the top of the connecting seat is provided with a placing groove.

As a preferred scheme of the three-wire power supply automatic switching device of the present invention, wherein: the clamping assembly comprises an outer sleeve, a clamping block arranged in the outer sleeve, and a poke rod arranged in the outer sleeve, wherein the poke rod is matched with the clamping block.

As a preferred scheme of the three-wire power supply automatic switching device of the present invention, wherein: the inner cavity of the outer sleeve is hollow, the lower end of the outer sleeve is through, and the outer sleeve is matched and sleeved outside the connecting seat; an open slot and a limit slot are arranged on the circumferential side wall of the outer sleeve, the open slot is positioned on the side wall of the lower end of the open slot, and a connecting slot is also arranged on the side wall of the inner cavity of the open slot; and a limiting convex ring is further arranged on the side wall of the lower end of the inner cavity of the outer sleeve.

As a preferred scheme of the three-wire power supply automatic switching device of the present invention, wherein: the clamping block is divided into an upper part and a lower part, and the radial diameter of the upper part is larger than that of the lower part; a trapezoidal through groove is formed in the side wall of the upper part; the side wall of the bottom of the lower part is provided with an arc-shaped groove matched with the placing groove; the outer side of the lower part is sleeved with an elastic piece, the top of the elastic piece is connected with the bottom side wall of the upper part, and the bottom of the elastic piece is arranged on the limiting convex ring.

As a preferred scheme of the three-wire power supply automatic switching device of the present invention, wherein: the poke rod penetrates through the trapezoidal through groove, one end of the poke rod is hinged in the connecting groove, the other end of the poke rod penetrates through the limiting groove and extends to the outside of the outer sleeve, and the middle of the poke rod is hinged in the trapezoidal through groove.

The utility model has the beneficial effects that:

according to the utility model, the control panel is arranged in the outer shell, each module for realizing power supply switching is arranged on the control panel, each power supply incoming line is connected with the input end of the switch module through the wiring unit, the control module monitors the on-off of each power supply through the monitoring input module, processes the power supply in real time, and automatically switches each switch module through the indirect control execution module, so that the power supply of equipment is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic connection position diagram of a three-wire power supply automatic switching device according to the present invention.

Fig. 2 is a schematic structural diagram of an outer shell of the three-wire power supply automatic switching device of the utility model.

Fig. 3 is a schematic diagram of a back structure of an outer casing of the three-wire power automatic switching device of the utility model.

Fig. 4 is a schematic diagram illustrating a connection principle of a control board of the three-wire power automatic switching device according to the present invention.

Fig. 5 is a schematic view of a connection structure of a connection unit of the three-wire power supply automatic switching device of the present invention.

FIG. 6 is a schematic diagram of a connection unit separation structure of the three-line power automatic switching device of the present invention

FIG. 7 is a schematic diagram of a half-section three-dimensional structure of a connection unit of the three-line power automatic switching device of the present invention

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Furthermore, the present invention is described in detail with reference to the drawings, and for convenience of illustration, the cross-sectional views illustrating the device structures are not enlarged partially according to the general scale when describing the embodiments of the present invention, and the drawings are only exemplary, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Example 1

Referring to fig. 1 to 4, for the first embodiment of the present invention, there is provided a three-wire power automatic switching apparatus, which includes an outer casing 100, a control board 200 and a connection unit 300, wherein the outer casing 100 is an external casing part of the power automatic switching apparatus, the control board 200 is installed inside the outer casing part, and an automatic switching circuit is printed on the control board 200; the connecting unit 300 is used for connecting with a lead of the power supply incoming line J, so that the power supply incoming line J is connected to the power supply bus L through the power supply automatic switching device.

Specifically, the outer case 100, which is hollow in its inner cavity, has a front panel 101 and a back panel 102; the outer case 101 has a hollow structure with both ends penetrating therethrough, and has a front panel 101 attached to one side of the penetrating end and a back panel 102 attached to the other side.

The control panel 200 is arranged in the inner cavity of the outer shell 100 and comprises a control module 201, a monitoring input module 202 and a control output module 203 which are connected with the control module 201, and the output end of the control output module 203 is connected with a switch module 205 through an execution module 204; the input end and the output end of the switch module 205 are both provided with a connector K.

The front panel 101 is provided with a display screen 101a, an input key 101b, a prompt lamp 101c and a loudspeaker 101 d; the input keys 101b are connected with the control input module 206 on the control panel 200 through wires; the display screen 101a, the indicator light 101c and the loudspeaker 101d are connected with the control output module 203 through wires. The display screen 101a, the prompting lamp 101b and the loudspeaker 101d are used for outputting processing signals in the control module 201 to prompt a worker, and the input key 101b is used for artificial active input.

The monitoring input module 202 is connected to an input terminal of the switch module 205, and the input terminal of the monitoring input module 202 receives an ac power signal from an input side of the switch module 205, where the power signal includes a voltage signal and a current signal.

The execution module 204 inputs the control signal output by the control output module 203 to the switch module 205, and controls the switch module 205 to perform action switching, so as to realize switching selection of the power supply bus L to the plurality of power supply inlet wires J;

the power inlet wire J is connected to the connector K of the switch module 205 through the connection unit 300.

The control board 200 is a printed circuit board, each circuit module is printed on a board body of the printed circuit board, 101 is a processing unit, a control circuit for realizing 3-way switching is arranged in the control board, the monitoring input module 202 is used for acquiring a power incoming line signal at the input end of the switch module 205 and feeding the power incoming line signal back to the control module 201 to judge and process, the control output module 203 is used for outputting a control signal of the control module 201, and the 3-way switching module incoming line is switched through the execution module 204. The connection port K of the input end and the output end of the switch module 205 is connected with the power inlet wire J through the connection unit 300, so that the output end of the power inlet wire J is connected to the power supply bus L.

The control panel 100 is further provided with a communication module 207, the communication module 207 performs wireless communication with an external monitoring center, and the switching information of the power inlet wire J is transmitted to the monitoring center.

The back panel 102 has a mounting groove 102a, the connection unit 300 is mounted in the mounting groove 102a, and the connection socket 301 is connected to the connection port K by a wire.

The connection unit 300, disposed on the back panel 102 and connected to the connection port K, includes a connection seat 301 and a clamping component 302 disposed on the connection seat 301.

The connection unit 300 is installed on the back surface of the outer casing 100, and is integrally used for connecting the power inlet line L with the switch module 205, and the connection seat 301 and the clamping assembly 302 constitute a clamp for clamping a power lead, so as to control the on-off of the power inlet line L by controlling the on-off of the switch module 205.

Example 2

Referring to fig. 5 to 7, a second embodiment of the present invention is different from the first embodiment in that: the top of the coupling socket 301 has a placing groove 301 a.

The clamping assembly 302 includes an outer sleeve 302a, a clamping block 302b disposed within the outer sleeve 302a, and a tap rod 302c disposed within the outer sleeve 302a, the tap rod 302c mating with the clamping block 302 b.

The inner cavity of the outer sleeve 302a is hollow, the lower end of the outer sleeve is through, and the outer sleeve is matched and sleeved outside the connecting seat 301; an open groove 302a-1 and a limit groove 302a-2 are arranged on the circumferential side wall of the outer sleeve 302a, the open groove 302a-1 is positioned on the side wall of the lower end of the outer sleeve, and a connecting groove 302a-3 is also arranged on the side wall of the inner cavity of the outer sleeve; the side wall of the lower end of the inner cavity of the outer sleeve 302a is also provided with a limit convex ring 302 a-4.

The clamping block 302b is divided into an upper part and a lower part, and the radial diameter of the upper part is larger than that of the lower part; a trapezoidal through groove 302b-1 is formed in the side wall of the upper part; the side wall of the bottom of the lower part is provided with an arc-shaped groove 302b-2 matched with the placing groove 301 a; the outer side of the lower part is sleeved with an elastic part X, the top of the elastic part X is connected with the bottom side wall of the upper part, and the bottom of the elastic part X is arranged on the limiting convex ring 302 a-4.

The poke rod 302c penetrates through the trapezoidal through slot 302b-1, one end of the poke rod is hinged in the connecting slot 302a-3, and the other end of the poke rod penetrates through the limiting slot 302a-2 and extends to the outside of the outer sleeve 302 a.

Compared with embodiment 1, further, the connection socket 301 is made of a metal conductor, and is connected with the conductive portion of the switch module 205 as a whole, and the placement groove 301a is disposed to facilitate the insertion of the end portion of the power line L.

The clamping component 302 is sleeved outside the connecting seat 301, can be made of insulating materials, and is used for both electric leakage protection of the connecting seat 301 and clamping connection of a circuit; specifically, the clamping assembly 302 has three portions, an outer sleeve 302a, a clamping block 302b, and a tap lever 302 c.

Specifically, the outer sleeve 302a is a cylindrical tubular structure, the inner cavity of the outer sleeve is hollow, one end of the outer sleeve is open, the open end of the outer sleeve is sleeved outside the connecting base 301, the side wall of the open end is provided with an open slot 302a-1, the open slot 302a-1 is used for placing a lead of the power supply inlet wire L, and the bottom of the slot cavity of the open slot 302a-1 is matched with the notch of the placing slot 301a to form a round opening convenient for placing the lead. The limiting groove 302a-2 is positioned on the side wall of the upper end of the outer sleeve 302a, extends along the axial direction of the outer sleeve 302a and penetrates through the side wall of the outer sleeve, and is used for limiting the poking range of the poking rod 302 c; the connecting groove 302a-3 is positioned on the side wall of the upper end of the inner cavity of the outer sleeve 302a and is used for hinging the poke rod 302 c; the limiting convex ring 302a-4 is positioned on the side wall of the lower end of the inner cavity of the outer sleeve 302a and above the open slot 302a-1 and is used for installing and limiting the elastic part X.

The clamping block 302b is of a sectional type integrated structure and is divided into an upper end cylinder and a lower end cylinder, the upper end cylinder and the lower end cylinder are divided into an upper part and a lower part, the radial diameters of the upper end cylinder and the lower end cylinder are different, the elastic piece X can be a spring and is sleeved on the outer side wall of the lower part, and two ends of the elastic piece X are respectively connected with the bottom side wall of the upper cylinder and the top side wall of the limiting convex ring 302 a-4; the upper column body is provided with a notch along the axial side wall thereof, and notches at two sides of the trapezoidal through groove 302b-1 penetrate through the side wall of the upper column body.

The poke rod 302c is used for extruding and driving the clamping block 302b to move, one end of the poke rod 302c is hinged in the connecting groove 302a-3, the other end of the poke rod is a free end and can be used for poking, and the middle rod body of the poke rod 302c is rotatably connected in the trapezoidal through groove 302b-1 through a rotating shaft to form a lever structure. When the poke rod 302c is poked, the liftable clamp block 302b moves.

The rest of the structure is the same as that of embodiment 1.

As shown in fig. 5 to 7, when the power switching device is connected, the end lead of the power line L is connected to the connection unit 300 located at the connection port K of the switch module 205. Before connection, the connection unit 300 is in a free state, that is, the elastic member X is in an initial state or in an elongated state, the free end of the poke rod 302c is located at the lower part of the limiting groove 302a-2, the clamping block 302b is limited at the lower end of the outer sleeve 302a, and the bottom of the clamping block is in contact with the top of the connection seat 301. During connection, a finger pushes the free end of the poke rod 302c to lift up, the elastic piece X is stretched under the lifting of the poke rod 302c, the clamping block 302b is lifted up, the outer sleeve 302a is separated from the connecting seat 301, the distance between the clamping block 302b and the connecting seat 301 is increased, at the moment, a lead at the end of a power incoming line L is placed in the placing groove 301a, the poke rod 302c is released, the clamping block 302b is restored to an initial state under the action of the elastic piece X, namely, the lead is clamped and limited between the connecting seat 301 and the clamping block 302b, and a power supply circuit is conducted through the switch module.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a power automatic switching control equipment of three incoming lines which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

an outer case (100) having a hollow inner cavity and including a front panel (101) and a back panel (102);

the control panel (200) is arranged in the inner cavity of the outer shell (100) and comprises a control module (201), a monitoring input module (202) and a control output module (203) which are connected with the control module (201), and the output end of the control output module (203) is connected with a switch module (205) through an execution module (204);

the input end and the output end of the switch module (205) are both provided with a connecting port (K); and the number of the first and second groups,

the connecting unit (300) is arranged on the back panel (102) and connected to the connecting port (K), and comprises a connecting seat (301) and a clamping component (302) arranged on the connecting seat (301).

2. The automatic power switching device of claim 1, wherein: the front panel (101) is provided with a display screen (101a), an input key (101b), a prompt lamp (101c) and a loudspeaker (101 d);

the input keys (101b) are connected with a control input module (206) on the control panel (200) through leads;

the display screen (101a), the prompting lamp (101c) and the loudspeaker (101d) are connected with the control output module (203) through wires.

3. The automatic power switching device of claim 1, wherein: the monitoring input module (202) is connected to the input end of the switch module (205), the input end of the monitoring input module (202) is connected to an alternating current power supply signal from the input side of the switch module (205), and the power supply signal comprises a voltage signal and a current signal;

the execution module (204) inputs the control signal output by the control output module (203) to the switch module (205), controls the switch module (205) to switch actions, and realizes the switching selection of the power supply bus (L) to a plurality of power supply inlet wires (J);

and the power supply inlet wire (J) is connected with a connecting port (K) of the switch module (205) through the connecting unit (300).

4. The automatic power switching device with three incoming lines according to any one of claims 1 to 3, characterized in that: the control panel (200) is also provided with a communication module (207), the communication module (207) is in wireless communication with an external monitoring center, and switching information of the incoming line power supply is transmitted to the monitoring center.

5. The automatic power switching device with three incoming lines of claim 4, characterized in that: the back panel (102) is provided with a mounting groove (102a), the connecting unit (300) is mounted in the mounting groove (102a), and the connecting seat (301) is connected with the connecting port (K) through a lead.

6. The automatic power switching device with three incoming lines according to any one of claims 1 to 3 and 5, characterized in that: the top of the connecting seat (301) is provided with a placing groove (301 a).

7. The automatic power switching device of claim 6, wherein: the clamping assembly (302) comprises an outer sleeve (302a), a clamping block (302b) arranged in the outer sleeve (302a), and a poke rod (302c) arranged in the outer sleeve (302a), wherein the poke rod (302c) is matched with the clamping block (302 b).

8. The automatic power switching device with three incoming lines of claim 7 is characterized in that: the inner cavity of the outer sleeve (302a) is hollow, the lower end of the outer sleeve is through, and the outer sleeve is matched and sleeved outside the connecting seat (301);

an open slot (302a-1) and a limiting slot (302a-2) are formed in the circumferential side wall of the outer sleeve (302a), the open slot (302a-1) is located on the side wall of the lower end of the open slot, and a connecting slot (302a-3) is formed in the side wall of the inner cavity of the open slot;

the side wall of the lower end of the inner cavity of the outer sleeve (302a) is also provided with a limit convex ring (302 a-4).

9. The automatic power switching device of claim 8, wherein: the clamping block (302b) is divided into an upper part and a lower part, and the radial diameter of the upper part is larger than that of the lower part;

a trapezoidal through groove (302b-1) is formed in the side wall of the upper part;

the bottom side wall of the lower part is provided with an arc-shaped groove (302b-2) matched with the placing groove (301 a);

an elastic part (X) is sleeved on the outer side of the lower part, the top of the elastic part (X) is connected with the bottom side wall of the upper part, and the bottom of the elastic part (X) is arranged on the limiting convex ring (302 a-4).

10. The automatic power switching device of claim 9, wherein: the poke rod (302c) penetrates through the trapezoidal through groove (302b-1), one end of the poke rod is hinged in the connecting groove (302a-3), the other end of the poke rod penetrates through the limiting groove (302a-2) and extends to the outside of the outer sleeve (302a), and the middle of the poke rod is hinged in the trapezoidal through groove (302 b-1).