Portable large-current switching device

Abstract

The utility model relates to the field of heavy current switching, and discloses a portable heavy current switching device, which comprises a case, a switching power supply arranged on the front side of the case, an input end arranged on the left side of the case, an input copper bar fixedly connected to the middle of the left side of the switching power supply, and an output copper bar fixedly connected to the rear side of the left side of the case. A first copper bar is fixedly connected to the inner wall of the rear side of the machine case, a first contactor is arranged on the rear side of the inner bottom wall of the machine case, a second contactor is arranged on the rear side of the inner bottom wall of the machine case, two second copper bars are fixedly connected to the inner bottom wall of the machine case, a third copper bar is fixedly connected to the middle sides of the tops of the second copper bars, and a fifth copper bar is arranged on the top of the third copper bar. And one side of the input copper bar is fixedly connected with a copper bar V. According to the utility model, the connection with a power supply can be completed through simple copper bar connection, the positive and negative polarity switching of large current is realized, the operation is simple and convenient, the operation is convenient for customers and debugging personnel, and the after-sales maintenance is also more convenient.

Description

Technical Field

[0001] The utility model relates to the field of high current switching, in particular to a portable high current switching device. Background Art

[0002] High current switching refers to the process of switching a circuit from one state to another in a power system to meet different circuit requirements. This usually involves switching high current loads, such as in power transmission, industrial production, and building construction. High current switching equipment usually includes components such as switches, circuit breakers, and contactors to control the connection and disconnection of circuits.

[0003] In previous traditional designs, current switching is accomplished by a relay integrated inside the power supply. This integrated design results in the relay and power supply being tightly integrated, making it quite difficult to maintain the equipment or replace the relay, as the entire set of components must be disassembled together, which is not only time-consuming but also increases the complexity of the operation.

[0004] In view of the above problems, a portable high current switching device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a portable high-current switching device, which aims to improve the existing technology in which current switching is completed by a relay integrated inside the power supply. This integrated design causes the relay and the power supply to be closely combined, making it quite difficult to maintain the equipment or replace the relay when it is necessary, because the entire set of components must be disassembled together, which is not only time-consuming but also increases the complexity of the operation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a portable high-current switching device, comprising a chassis, a switching power supply is arranged on the front side of the chassis, an input end is arranged on the left side of the chassis, an input copper bar is fixedly connected to the middle part of the left side of the switching power supply, an output copper bar is fixedly connected to the rear side of the left side of the chassis, a copper bar one is fixedly connected to the inner wall of the rear side of the chassis, a contactor one is arranged on the rear side of the inner bottom wall of the chassis, a contactor two is arranged on the rear side of the inner bottom wall of the chassis, two copper bars two are fixedly connected to the inner bottom wall of the chassis, a copper bar three is fixedly connected to the middle side of the top of the copper bar two, a copper bar five is arranged on the top of the copper bar three, a copper bar five is fixedly connected to one side of the input copper bar five, a contactor three is arranged on the front side of the inner bottom wall of the chassis, a contactor four is arranged on the front side of the inner bottom wall of the chassis, two copper bars four are fixedly connected to the bottom of the copper bar three, a chassis cover is slidably connected to the inside of the chassis, and a plurality of fixed components are arranged on the outside of the chassis cover.

[0007] As a further description of the above technical solution:

[0008] The fixing assembly includes a mounting block and a plug-in rod, the outer side of the mounting block is fixedly connected to the outer side of the chassis cover, the top side of the mounting block is provided with a slide groove, the bottom side of the mounting block is provided with a limiting groove, the outer side of the plug-in rod is slidably connected to the inside of the chassis, the plug-in rod is fixedly connected with a spring on the side away from the chassis, the bottom of the plug-in rod is rotatably connected to a connecting rod, the bottom of the connecting rod is rotatably connected to a baffle, and the lower part of the baffle is fixedly connected to a push rod.

[0009] As a further description of the above technical solution:

[0010] The top of the contactor 3 is arranged at the bottom of one of the copper bars 4, and the top of the contactor 4 is arranged at the bottom of another copper bar 4.

[0011] As a further description of the above technical solution:

[0012] The plug-in rod passes through the chassis cover and is plugged into the interior of the chassis.

[0013] As a further description of the above technical solution:

[0014] The baffle is slidably connected to the inside of the slide groove, and the push rod is slidably connected to the inside of the limiting groove.

[0015] As a further description of the above technical solution:

[0016] The outer side of the baffle is slidably connected to the inside of the limiting groove.

[0017] As a further description of the above technical solution:

[0018] Two handles are fixedly connected to one side of the chassis.

[0019] As a further description of the above technical solution:

[0020] One side of the output copper bar is fixedly connected to an outer side of the copper bar.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the connection with the power supply can be completed through a simple copper busbar connection to realize the positive and negative polarity switching of large current. The operation is simple and convenient, which is convenient for customers and commissioning personnel to operate and more convenient for after-sales maintenance.

[0023] 2. In the utility model, by pushing the push rod, the baffle moves, the connecting rod rotates, the plug rod is driven to withdraw from the chassis, and the spring is compressed, so that the chassis can be quickly disassembled, the chassis disassembly time is shortened, the work efficiency is improved, and the equipment maintenance and on-site operation are greatly facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a portable high-current switching device proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a plug-in rod of a portable high-current switching device proposed by the utility model;

[0026] Figure 3 This is a structural schematic diagram of an input copper busbar of a portable high-current switching device proposed by the utility model.

[0027] Legend:

[0028] 1. Chassis; 2. Switching power supply; 3. Input terminal; 4. Input copper busbar; 5. Output copper busbar; 6. Contactor 1; 7. Contactor 2; 8. Contactor 4; 9. Contactor 3; 10. Copper busbar 1; 11. Copper busbar 2; 12. Copper busbar 3; 13. Copper busbar 4; 14. Chassis cover; 15. Mounting block; 16. Slide; 17. Limiting slot; 18. Connecting rod; 19. Baffle; 20. Push rod; 21. Plug rod; 22. Spring; 23. Handle; 24. Copper busbar 5. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a portable high-current switching device, comprising a chassis 1, a switching power supply 2 is arranged on the front side of the chassis 1, an input terminal 3 is arranged on the left side of the chassis 1, an input copper bar 4 is fixedly connected to the middle part of the left side of the switching power supply 2, an output copper bar 5 is fixedly connected to the rear side of the left side of the chassis 1, a copper bar 10 is fixedly connected to the inner wall of the rear side of the chassis 1, a contactor 1 6 is arranged on the rear side of the inner bottom wall of the chassis 1, a contactor 2 7 is arranged on the rear side of the inner bottom wall of the chassis 1, two copper bars 2 11 are fixedly connected to the inner bottom wall of the chassis 1, a copper bar 3 12 is fixedly connected to the middle side of the top of the copper bar 2 11, a copper bar 5 24 is arranged on the top of the copper bar 3 12, a copper bar 5 24 is fixedly connected to one side of the input copper bar 4, a contactor 3 9 is arranged on the front side of the inner bottom wall of the chassis 1, a contactor 4 8 is arranged on the front side of the inner bottom wall of the chassis 1, two copper bars 4 13 are fixedly connected to the bottom of the copper bar 3 12, a chassis cover 14 is slidably connected to the inside of the chassis 1, and a plurality of fixed components are arranged on the outside of the chassis cover 14.

[0031] Specifically, a switching power supply 2 is provided in the chassis 1, which is responsible for the conversion and distribution of power. The input terminal 3 is located on the left side of the chassis 1, and the user can connect an external power supply through it. The input copper bar 4 is fixedly connected to the middle of the left side of the switching power supply 2 for receiving and transmitting external power. The output copper bar 5 is fixed on the left rear side for outputting the switched current. Contactor 1 6 and contactor 2 7 are located on the inner bottom wall of the chassis 1 for controlling the on and off of the current to achieve switching. Copper bar 1 10 is fixed on the inner wall of the rear side of the chassis 1 for connecting other circuits. There are two copper bars 2 11, which are connected to the contactor and extend to copper bar 3 12 to form a current transmission path. Copper bar 5 24 is connected to the top of copper bar 3 12 for easy connection or switching with the input copper bar 4. Contactor 3 9 and contactor 4 8 are located on the front side of the chassis 1 and are also used to control the current. Copper bar 4 13 is fixed to the bottom of copper bar 3 12, which may be used for further branching or protection. The chassis cover 14 can be closed by sliding connection to provide safety protection, and a fixing component is provided on the outside to facilitate the fixing device.

[0032] Reference Figure 1 - Figure 3 The fixing assembly includes a mounting block 15 and a plug-in rod 21. The outer side of the mounting block 15 is fixedly connected to the outer side of the chassis cover 14. A slide groove 16 is provided on the top side of the mounting block 15. A limiting groove 17 is provided on the bottom side of the mounting block 15. The outer side of the plug-in rod 21 is slidably connected to the inside of the chassis 1. A spring 22 is fixedly connected to the side of the plug-in rod 21 away from the chassis 1. The bottom of the plug-in rod 21 is rotatably connected to a connecting rod 18. The bottom of the connecting rod 18 is rotatably connected to a baffle 19. The lower part of the baffle 19 is fixedly connected to a push rod 20.

[0033] Specifically, during the disassembly process, when the worker needs to operate, by pushing the push rod 20, it will cause the fixedly connected baffle 19 to move along the slide groove 16. As the baffle 19 moves, the connecting rod 18 also rotates, thereby driving the plug rod 21 to be pulled out from the inside of the chassis 1. During this process, the spring 22 is compressed and stores energy due to the pulling out of the plug rod 21. On the contrary, during the installation stage, when the push rod 20 is released, the spring 22 will release the stored energy, driving the plug rod 21 to reset and return along the slide groove 16. The connecting rod 18 rotates accordingly, pushing the baffle 19 back to its original position, and finally allowing the plug rod 21 to re-penetrate the chassis cover 14 and be firmly inserted into the interior of the chassis 1. The entire process ensures the smooth disassembly and assembly of the chassis 1 and maintains the integrity of the device.

[0034] Reference Figure 1 - Figure 3The top of contactor three 9 is set at the bottom of one of the copper bars four 13, the top of contactor four 8 is set at the bottom of the other copper bar four 13, the plug-in rod 21 passes through the chassis cover 14 and is plugged into the inside of the chassis 1, the baffle 19 is slidably connected to the inside of the slide groove 16, the push rod 20 is slidably connected to the inside of the limit groove 17, the outer side of the baffle 19 is slidably connected to the inside of the limit groove 17, two handles 23 are fixedly connected to one side of the chassis 1, and one side of the output copper bar 5 is fixedly connected to the outer side of the copper bar one 10.

[0035] Specifically, the contactor three 9 and the contactor four 8 serve as key control elements for current switching. They are located at the bottom of the copper busbar four 13. When receiving instructions, they can quickly switch their states, thereby changing the direction of current flow and realizing the positive and negative polarity switching of large currents. The plug rod 21 is the connection point of the device. It runs through the chassis cover 14 and can also provide necessary mechanical support during disassembly and installation. The baffle 19 is connected to the inside of the slide groove 16 and the inner and outer sides of the limit groove 17 by sliding. It plays a supporting and locking role in the opening and closing process of the chassis cover 14, ensuring the sealing and operational safety of the device. The handle 23 is designed on one side of the chassis 1, which is convenient for users to carry and operate, and improves the portability of the device. The output copper busbar 5 is fixed to the outside of the copper busbar 10, ensuring the reliable transmission of the output current and meeting the needs of the load equipment.

[0036] Working principle: The connection terminal of the signal input line for polarity switching is added below the AC220V input terminal to start the switching power supply 2. The switching power supply 2 can be used alone or connected to the device to achieve the positive and negative polarity switching of large current. When the power supply needs to switch polarity, use a copper busbar to connect the input copper busbar 4 of the device with the output terminal of the power supply. At this time, it is controlled by contactor 1 6, contactor 2 7, contactor 4 8 and contactor 3 9. Under the joint action of copper busbar 1 10, copper busbar 2 11, copper busbar 3 12, copper busbar 5 24 and other copper busbars, the signal control of the device is switched to achieve the positive and negative current. The purpose of polarity switching is that when the chassis 1 needs to be disassembled, the worker pushes the push rod 20 to move the baffle 19 fixed thereto, thereby allowing the connecting rod 18 to rotate, thereby pushing the plug rod 21 to move until it completely leaves the interior of the chassis 1. At this time, the spring 22 fixedly connected thereto will be compressed, and the disassembly is completed. When the chassis 1 needs to be installed, the push rod 20 is released, and the spring 22 is restored. At this time, the plug rod 21 moves, thereby driving the connecting rod 18 to rotate, causing it to push the baffle 19 to move, and the push rod 20 also moves accordingly, until the plug rod 21 re-penetrates the chassis cover 14 and is plugged into the interior of the chassis 1, and the installation is completed.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable high current switching device, comprising a chassis (1), characterized in that: The front side of the chassis (1) is provided with a switching power supply (2), the left side of the chassis (1) is provided with an input terminal (3), the middle part of the left side of the switching power supply (2) is fixedly connected with an input copper busbar (4), the rear side of the left side of the chassis (1) is fixedly connected with an output copper busbar (5), the rear inner wall of the chassis (1) is fixedly connected with a copper busbar 1 (10), the rear side of the inner bottom wall of the chassis (1) is provided with a contactor 1 (6), the rear side of the inner bottom wall of the chassis (1) is provided with a contactor 2 (7), the inner bottom wall of the chassis (1) is fixedly connected with two copper busbars 2 (11), and the A copper bar three (12) is fixedly connected to the middle side of the top of the copper bar two (11), a copper bar five (24) is arranged on the top of the copper bar three (12), a copper bar five (24) is fixedly connected to one side of the input copper bar (4), a contactor three (9) is arranged on the front side of the inner bottom wall of the chassis (1), a contactor four (8) is arranged on the front side of the inner bottom wall of the chassis (1), two copper bars four (13) are fixedly connected to the bottom of the copper bar three (12), a chassis cover (14) is slidably connected to the inside of the chassis (1), and a plurality of fixing components are arranged on the outside of the chassis cover (14).

2. A portable high current switching device according to claim 1, characterized in that: The fixing assembly comprises a mounting block (15) and a plug-in rod (21); the outer side of the mounting block (15) is fixedly connected to the outer side of the chassis cover (14); the top side of the mounting block (15) is provided with a slide groove (16); the bottom side of the mounting block (15) is provided with a limit groove (17); the outer side of the plug-in rod (21) is slidably connected to the inside of the chassis (1); a side of the plug-in rod (21) away from the chassis (1) is fixedly connected with a spring (22); the bottom of the plug-in rod (21) is rotatably connected to a connecting rod (18); the bottom of the connecting rod (18) is rotatably connected to a baffle (19); the lower part of the baffle (19) is fixedly connected to a push rod (20).

3. A portable high current switching device according to claim 1, characterized in that: The top of the contactor three (9) is arranged at the bottom of one of the copper bars four (13), and the top of the contactor four (8) is arranged at the bottom of another copper bar four (13).

4. A portable high current switching device according to claim 2, characterized in that: The plug-in rod (21) passes through the chassis cover (14) and is plugged into the interior of the chassis (1).

5. A portable high current switching device according to claim 2, characterized in that: The baffle (19) is slidably connected inside the slide groove (16), and the push rod (20) is slidably connected inside the limiting groove (17).

6. A portable high current switching device according to claim 2, characterized in that: The outer side of the baffle (19) is slidably connected to the inside of the limiting groove (17).

7. A portable high current switching device according to claim 1, characterized in that: Two handles (23) are fixedly connected to one side of the chassis (1).

8. A portable high current switching device according to claim 1, characterized in that: One side of the output copper bar (5) is fixedly connected to the outer side of the copper bar one (10).

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