An electric disconnect switch for testing a high-capacity energy storage test power supply

Abstract

This utility model discloses an electric disconnecting switch for testing a large-capacity energy storage test power supply, including a front-opening housing. Multiple vertically downward-facing electric push rods are installed on the top of the housing's inner cavity. A high-voltage post insulator a is fixedly installed on the piston rod of each electric push rod. A high-voltage moving contact is fixedly installed at the lower end of the high-voltage post insulator a. A tin-plated copper foil flexible connection is provided between the high-voltage post insulator a and the high-voltage moving contact. Multiple sets of high-voltage post insulators b are fixedly installed at the bottom of the housing's inner cavity. Each set of high-voltage post insulators b has two insulators, and an output copper busbar is fixedly installed at its upper end. A high-voltage clover contact is fixedly installed on the upper side of the output copper busbar, with the high-voltage moving contact and the high-voltage clover contact facing each other vertically. Opening and closing are achieved by moving the high-voltage moving contact up and down using the electric push rods. The operation is flexible and controllable. The linear electric push rod can lock the piston shaft at the stop position when opening or closing, keeping the moving contact in the closed state and improving the overall stability of the electric disconnecting switch.

Description

Technical Field

[0001] This utility model relates to the field of disconnecting switch technology, specifically an electric disconnecting switch for testing a large-capacity energy storage test power supply. Background Technology

[0002] With the increasing demand for electricity due to societal development, higher requirements are being placed on robust, reliable, and intelligent power grids. Electrical equipment testing is a prerequisite for ensuring the safe operation of electrical equipment and is also one of the most fundamental and crucial tasks in ensuring safe operation. Energy storage-type high-capacity test power supplies are large-capacity testing systems implemented using energy storage and power electronics technologies. They can release a large amount of energy in a short time through energy storage components (such as battery packs), meeting the high capacity and high stability requirements of electrical testing. Currently, the static contacts used in pneumatic disconnect switches generally come in the following forms: plum blossom contact finger structure, external pressure contact rod structure, and external pressure contact plate structure. Existing pneumatic disconnect switches use cylinders for opening and closing, which have a large impact force at extreme positions, making precise and stable control of opening and closing impossible. Utility Model Content

[0003] The purpose of this invention is to provide an electric disconnecting switch for testing a large-capacity energy storage test power supply, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electric disconnecting switch for testing a large-capacity energy storage test power supply, comprising a front-opening housing, wherein multiple vertically downward electric push rods are fixedly installed on the top of the inner cavity of the housing along the length direction, a high-voltage post insulator a is fixedly installed on the piston rod of the electric push rod, a high-voltage moving contact is fixedly installed at the lower end of the high-voltage post insulator a, a tin-plated copper foil flexible connection is provided between the high-voltage post insulator a and the high-voltage moving contact, and multiple sets of high-voltage post insulators b are fixedly installed at the bottom of the inner cavity of the housing, each set of high-voltage post insulators b having two units and an output copper busbar fixedly installed at the upper end, a high-voltage plum blossom contact is fixedly installed on the upper side of the output copper busbar, and the high-voltage moving contact and the high-voltage plum blossom contact are vertically opposite each other.

[0005] Preferably, the high-voltage plum blossom contact is provided with an insulating guide post in the middle, and the high-voltage moving contact is inserted into the insulating guide post after being pressed down.

[0006] Preferably, a through-wall sleeve for rear output is installed at the lower back of the enclosure, and a through-wall sleeve for rear output is fixedly installed at the upper back of the enclosure.

[0007] Preferably, the top of the enclosure is fitted with a through-wall sleeve for the upper input.

[0008] Compared with the prior art, the beneficial effects of this utility model are: This utility model uses an electric push rod to move the high-voltage moving contact up and down to realize the opening and closing of the circuit breaker. The operation is flexible and controllable. The linear electric push rod can lock the piston shaft at the stop position of opening and closing to keep the moving contact in the closed state, thereby improving the overall stability of the electric disconnecting switch. An insulating guide post is provided in the middle of the high-voltage plum blossom contact to improve the accuracy of the closing position. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0010] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0011] In the diagram: 1. Box housing; 2. Electric push rod; 3. High-voltage post insulator a; 4. Tinned copper foil flexible connector; 5. High-voltage moving contact; 6. Insulating guide post; 7. High-voltage plum blossom contact; 8. High-voltage post insulator b; 9. Output copper busbar; 10. Rear output through-wall bushing; 11. Rear output through-wall bushing; 12. Upper input through-wall bushing. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] Please see Figure 1 , 2 This utility model provides a technical solution: an electric disconnecting switch for testing a large-capacity energy storage test power supply, comprising a front-opening housing 1. Multiple vertically downward-facing electric push rods 2 are fixedly installed along the length of the top of the inner cavity of the housing 1. A high-voltage post insulator a3 is fixedly installed on the piston rod of the electric push rod 2. A high-voltage moving contact 5 is fixedly installed at the lower end of the high-voltage post insulator a3. A tin-plated copper foil flexible connection 4 is provided between the high-voltage post insulator a3 and the high-voltage moving contact 5. The tin-plated copper foil flexible connection 4 is used for the high-voltage input of the system and can move during opening and closing. The electric push rods 2 can precisely and stably drive the high-voltage moving contact 5 to move up and down to achieve opening and closing. A through-wall bushing 10 is installed at the lower back of the housing 1, and a through-wall bushing 11 is fixedly installed at the upper back of the housing 1. A through-wall bushing 12 is installed at the top of the housing 1. The number of bushings in each group is equal to the number of high-voltage moving contacts 5.

[0014] Multiple sets of high-voltage post insulators b8 are fixedly installed at the bottom of the inner cavity of the enclosure 1. Each set of high-voltage post insulators b8 has two insulators, and an output copper busbar 9 is fixedly installed at the top. A high-voltage plum blossom contact 7 is fixedly installed on the upper side of the output copper busbar 9, and a high-voltage moving contact 5 is vertically opposite to the high-voltage plum blossom contact 7. An insulating guide post 6 is provided in the middle of the high-voltage plum blossom contact 7. After the high-voltage moving contact 5 is pressed down, it is inserted into the insulating guide post 6. The insulating guide post 6 can improve the positional accuracy of closing.

[0015] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric disconnect switch for testing a large-capacity energy storage test power supply, comprising a housing (1) with an opening on the front, characterized in that: Multiple vertically downward electric push rods (2) are fixedly installed on the top of the inner cavity of the box (1) along the length direction. A high-voltage post insulator a (3) is fixedly installed on the piston rod of the electric push rod (2). A high-voltage moving contact (5) is fixedly installed at the lower end of the high-voltage post insulator a (3). A tin-plated copper foil flexible connection (4) is provided between the high-voltage post insulator a (3) and the high-voltage moving contact (5). Multiple sets of high-voltage post insulators b (8) are fixedly installed at the bottom of the inner cavity of the box (1). Each set of high-voltage post insulators b (8) has two units and an output copper busbar (9) is fixedly installed at the upper end. A high-voltage plum blossom contact (7) is fixedly installed on the upper side of the output copper busbar (9). The high-voltage moving contact (5) and the high-voltage plum blossom contact (7) are vertically opposite each other.

2. The electric disconnecting switch for testing a large-capacity energy storage test power supply according to claim 1, characterized in that: The high-voltage plum blossom contact (7) is provided with an insulating guide post (6) in the middle. After the high-voltage moving contact (5) is pressed down, it is inserted into the insulating guide post (6).

3. The electric disconnecting switch for testing a large-capacity energy storage test power supply according to claim 1, characterized in that: A through-wall sleeve (10) for rear output is installed on the lower back of the enclosure (1), and a through-wall sleeve (11) for rear output is fixedly installed on the upper back of the enclosure (1).

4. The electric disconnecting switch for testing a large-capacity energy storage test power supply according to claim 3, characterized in that: The top of the housing (1) is fitted with a through-wall sleeve (12).

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