Double-control power supply box with emergency stop switch

Abstract

The utility model discloses a double-control power supply box with an emergency stop switch, which comprises a box body and an emergency stop switch button arranged on the box body, the emergency stop switch button is in sliding connection with the box body, and the emergency stop switch button is fixedly connected with a first bridge type contact. The box body is provided with a normally-closed static contact and a normally-open static contact, the first end of the normally-closed static contact is used for being communicated with a direct current input line, the second end of the normally-closed static contact is used for being communicated with a direct current output line, the first end of the normally-open static contact is used for being communicated with an alternating current input line, and the second end of the normally-open static contact is used for being communicated with the direct current output line. The power supply box is provided with the two power supply circuits, when the first power supply circuit breaks down, an emergency stop switch button can be pressed down, the first power supply circuit can be immediately cut off and switched to the second power supply circuit, normal operation of electric equipment is guaranteed, and the problem that the electric equipment is shut down due to power supply faults is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a double-control power supply box with an emergency stop switch. Background Art

[0002] A power box is an electrical device primarily used to centrally manage power distribution and control electricity usage. Existing power boxes typically use a single power supply method. Failures in the power supply system can cause power-consuming equipment to shut down. For example, a power line failure at a weather station server during a critical moment of project data collection forces the weather station to cease operations. Data cannot be collected until power is restored, resulting in data loss and immeasurable losses to the project. Utility Model Content

[0003] The utility model addresses the situation in the prior art where a power box adopts only one power supply mode, resulting in electrical equipment being unable to operate after a power outage. The utility model proposes a dual-control power box with an emergency stop switch. The power box provides two power supply circuits to ensure that when one power supply line is damaged, the other power supply line ensures normal operation of the equipment.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A dual-control power supply box with an emergency stop switch includes a box body and an emergency stop switch button located on the box body. The emergency stop switch button is slidably connected to the box body and fixedly connected to a first bridge contact. The box body is provided with a normally closed static contact and a normally open static contact. The box body is provided with at least three terminals, which are used to respectively connect a DC input line, a DC output line, and an AC input line. The first end of the normally closed static contact is used to connect the DC input line, the second end of the normally closed static contact is used to connect the DC output line, the first end of the normally open static contact is used to connect the AC input line, and the second end of the normally open static contact is used to connect the DC output line. The movement of the first bridge contact completes the transition from a contact state between the first bridge contact and the normally closed static contact to a contact state between the first bridge contact and the normally open static contact, thereby converting the DC power supply of the power supply box to an AC power supply.

[0006] Preferably, an AC-DC converter is provided between the connection terminal corresponding to the AC input line and the first end of the normally open static contact.

[0007] Preferably, the emergency stop switch button is fixedly connected to the second bridge contact, and a power static contact is provided on the box body. The contact state of the second bridge contact and the power static contact is transformed into a separation state by moving the emergency stop switch button.

[0008] Preferably, the box body is provided with a terminal for connecting an AC output line.

[0009] Preferably, a cover is provided on the box body, and the cover covers the outside of the emergency stop switch button.

[0010] Preferably, a bracket is provided on the box body, and a connecting hole is provided on the bracket.

[0011] The beneficial effects of the utility model are:

[0012] 1. The dual-control power supply box in the present invention is used to supply power to electrical equipment. Two power supply circuits are set in the box body. When the first power supply circuit fails, the emergency stop switch button can be pressed to immediately cut off the first power supply circuit and switch to the second power supply circuit, ensuring the normal operation of the electrical equipment and effectively avoiding the problem of electrical equipment shutdown due to power failure.

[0013] 2. The emergency stop switch button of the dual-control power supply box in the present invention is a double-layer bridge contact design, which can cut off the power supply while switching the power supply circuit, further ensuring the safe operation of the circuit power supply.

[0014] 3. A cover is provided on the outside of the emergency stop switch button of the dual-control power supply box in the present invention to prevent dust and water from entering the emergency stop switch button and protect the emergency stop switch button when the power supply box is installed outdoors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the front of the dual-control power supply box;

[0016] Figure 2 This is a structural diagram of the side of the dual-control power supply box;

[0017] Figure 3 This is a schematic diagram of the structure of the dual-control power supply box in partial cross-section from the side;

[0018] Figure 4 This is a structural diagram of the emergency stop switch button circuit connection;

[0019] Figure 5 This is a structural diagram of the emergency stop switch button circuit connection (DC power supply);

[0020] Figure 6 This is a structural diagram of the emergency stop switch button circuit connection (AC power supply).

[0021] In the figure: 1. Box body; 2. Emergency stop switch button; 3. Cover body; 4. First terminal; 5. Second terminal; 6. Third terminal; 7. Fourth terminal; 8. Bracket; 9. Normally closed static contact; 10. Normally open static contact; 11. Power static contact; 12. Spring; 13. AC / DC converter; 14. First magnetic element; 21. First bridge contact; 22. Second bridge contact; 23. Connecting column. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1

[0024] Reference Figure 1-2 A dual-control power supply box with an emergency stop switch has an emergency stop switch button 2 disposed on the front of a box body 1. A cover 3 is disposed on the box body 1, the upper end of which is rotatably connected to the box body 1. The cover 3 covers the outside of the emergency stop switch button 2, protecting the emergency stop switch button 2 and making the emergency stop switch button 2 waterproof and dustproof.

[0025] A bracket 8 is provided on the back of the box body 1. The bracket 8 is provided with a connecting hole. The connecting hole is used to connect a clamp. The box body 1 of the power box can be installed on the vertical pole through the clamp.

[0026] refer to Figure 4 Box body 1 is provided with four terminals, including a first terminal 4, a second terminal 5, a third terminal 6, and a fourth terminal 7. First terminal 4 is used to connect to the DC input line, second terminal 5 is used to connect to the AC input line, third terminal 6 is used to connect to the DC output line, and fourth terminal 7 is used to connect to the AC output line. Fourth terminal 7 is directly connected to second terminal 5 and can be used to power other AC devices.

[0027] refer to Figure 3 One end of the emergency stop switch button 2 is fixedly connected to a connecting post 23. The connecting post 23 is an insulator and is slidably connected to the box body 1. A first bridge contact 21 is provided on the connecting post 23. The box body 1 is provided with a normally closed static contact 9 and a normally open static contact 10. The first bridge contact 21 is located between the normally closed static contact 9 and the normally open static contact 10.

[0028] refer to Figure 4 The first end of the normally closed static contact 9 is connected to the first terminal 4, which is used for DC power input, forming a first power supply circuit. The second end of the normally closed static contact 9 is connected to the third terminal 6 for DC power output. The first end of the normally open static contact 10 is connected to the second terminal 5, which is used for DC power input, forming a second power supply circuit. An AC-DC converter 13 is provided between the second terminal 5 and the first end of the normally open static contact 10. The AC-DC converter 13 can convert the AC power input from the second terminal 5 into DC power. The second end of the normally open static contact 10 is connected to the third terminal 6 for DC power output.

[0029] refer to Figure 3A limit plate is provided inside the box body 1, and a spring 12 is provided between the limit plate and the emergency stop switch button 2. The spring 12 is used to support the emergency stop switch button 2 so that the first bridge contact 21 on the emergency stop switch button 2 contacts the normally closed static contact 9. Figure 5 At this time, the power box is in a DC power supply state, the first power supply circuit is working, DC power is input from the first terminal 4, passes through the first bridge contact 21 and then output from the third terminal 6.

[0030] When the first power supply line fails, the emergency stop switch button 2 can be pressed, and the first bridge contact 21 moves, leaving the normally closed static contact 9 and contacting the normally open static contact 10, thereby cutting off the first power supply line and connecting the second power supply circuit. Figure 6 At this time, the power box is in AC power supply state, the second power supply circuit is working, AC power is input from the second terminal 5, converted into DC power through the AC-DC converter 13, and output from the third terminal 6 after passing through the first bridge contact 21.

[0031] A first magnetic member 14 is provided inside the box body 1, and the first bridge contact 21 is also provided with a corresponding second magnetic member (not shown). The first magnetic member 14 is an electromagnetic block. The first magnetic member 14 is connected in series to the second power supply circuit. When the first bridge contact 21 contacts the normally open static contact 10, the first magnetic member 14 is energized. The first magnetic member 14 and the second magnetic member are attracted to keep the first bridge contact 21 in contact with the normally open static contact 10 for a long time after the emergency stop switch button 2 is pressed. When the first power supply circuit is restored, the emergency stop switch button 2 is pulled, and the emergency stop switch button 2 is reset, switching the power supply line from the second power supply circuit back to the first power supply circuit. At this time, the first magnetic member 14 is not energized. The AC power of the second power supply circuit in this embodiment is generated from an AC backup power supply (diesel generator or gas generator, etc.). When the main power supply fails or cannot supply power normally, the AC backup power supply can quickly switch to the backup power supply system to ensure the continuous operation of the electrical equipment.

[0032] This dual-control power supply box with an emergency stop switch can supply power to electrical equipment. The box body 1 is provided with two power supply circuits, which include a first power supply circuit and a second power supply circuit. When the first power supply circuit fails, the emergency stop switch button 2 can be pressed to immediately cut off the first power supply circuit and switch to the second power supply circuit to ensure the normal operation of the electrical equipment.

[0033] Example 2

[0034] The difference from Example 1 is that Figure 3A second bridge contact 22 is also fixedly connected to the connecting column 23 of the emergency stop switch button 2. A power static contact 11 is provided on the box body 1. The power static contact 11 is provided at the power output of the first power supply circuit. The movement of the emergency stop switch button 2 completes the transition from the contact state of the second bridge contact 22 and the power static contact 11 to the separation state to cut off the power supply, ensuring that the first power supply circuit can be completely disconnected in an emergency, avoiding the danger or damage that may be caused by continued current flow.

[0035] refer to Figure 5 When the first power supply circuit is working, the first bridge contact 21 on the emergency stop switch button 2 contacts the normally closed static contact 9, and the second bridge contact 22 contacts the power static contact 11; Figure 6 When the first power supply circuit is inoperative and the second power supply circuit is operative, the first bridge contact 21 on the emergency stop switch button 2 contacts the normally open static contact 10, and the second bridge contact 22 separates from the power static contact 11. The emergency stop switch button 2 in this embodiment employs a double-layer bridge contact design, which simultaneously switches the power supply circuit and cuts off the power supply, further ensuring circuit power supply safety.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dual-control power supply box with an emergency stop switch, a box body and an emergency stop switch button located on the box body, wherein the emergency stop switch button is slidably connected to the box body, characterized in that: The emergency stop switch button is fixedly connected to a first bridge contact, and the box body is provided with a normally closed static contact and a normally open static contact; At least three terminals are provided on the box body, and the terminal terminals are used to respectively connect the DC input line, the DC output line and the AC input line. The first end of the normally closed static contact is used to connect the DC input line, and the second end of the normally closed static contact is used to connect the DC output line. The first end of the normally open static contact is used to connect the AC input line, and the second end of the normally open static contact is used to connect the DC output line. The contact state of the first bridge contact and the normally closed static contact is transformed into the contact state of the first bridge contact and the normally open static contact by moving the first bridge contact, thereby realizing the conversion of DC power supply of the power box into AC power supply.

2. The dual-control power supply box according to claim 1, characterized in that: An AC-DC converter is provided between the connection terminal corresponding to the AC input line and the first end of the normally open static contact.

3. The dual-control power supply box according to claim 2, characterized in that: The emergency stop switch button is fixedly connected to a second bridge contact, and a power static contact is provided on the box body. The contact state of the second bridge contact and the power static contact is transformed into a separation state by moving the emergency stop switch button.

4. The dual-control power supply box according to any one of claims 1 to 3, characterized in that: The box body is provided with a connection terminal for connecting an AC output line.

5. The dual-control power supply box according to claim 4, characterized in that: A cover is provided on the box body, and the cover covers the outside of the emergency stop switch button.

6. The dual-control power supply box according to claim 5, characterized in that: A bracket is provided on the box body, and a connecting hole is provided on the bracket.

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