Voltage conversion switch

Abstract

This utility model discloses a voltage changeover switch, which includes a mounting base, a knob, a first terminal, and two second terminals. The knob is rotatably connected to the mounting base. The first terminal is disposed on the side wall of one end of the mounting base, and the two second terminals are disposed on the side wall of the other end of the mounting base. The side wall of the mounting base has a mounting groove. The first terminal is connected to one end of all transformers, and the two second terminals are respectively connected to the other end of two of the transformers. The other ends of the remaining transformers are placed in the mounting groove. This application has the effect of improving the adaptability of the changeover switch.

Description

Technical Field

[0001] This application relates to the field of electrical switch technology, and in particular to a voltage conversion switch. Background Technology

[0002] Motors on the market contain multiple transformers, and a changeover switch is installed outside the motor. By switching the switch, one of the transformers can be connected to the external circuit, thus adapting to different voltage operating conditions. When there are many transformers in the motor, the number of connection ports of the changeover switch increases, which increases the area occupied by the changeover switch, thereby increasing the probability that the motor will be affected during transportation. Utility Model Content

[0003] The purpose of this invention is to provide a voltage conversion switch that addresses the shortcomings and deficiencies of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The device includes a mounting base, a knob, a first terminal block, and two second terminals. The knob is rotatably connected to the mounting base. The first terminal block is located on the side wall of one end of the mounting base, and the two second terminals are located on the side wall of the other end of the mounting base. The side wall of the mounting base has a mounting groove. The first terminal block is connected to one end of all transformers, and the two second terminals are respectively connected to the other end of two of the transformers. The other ends of the remaining transformers are placed in the mounting groove.

[0006] Preferably, the side wall of the mounting base has two mounting slots, and the two second terminals are respectively fixed in the mounting slots.

[0007] Preferably, the second terminal includes a tension spring, a fixing plate, and a clamping plate. The fixing plate is fixed to the bottom of the mounting groove, one end of the clamping plate is rotatably connected to the side wall of the mounting groove, and the tension spring is located between the fixing plate and the clamping plate, driving the clamping plate to move closer to the fixing plate.

[0008] Preferably, the clamping plate has a fixed tip evenly distributed on the side near the fixing plate.

[0009] Preferably, the first terminal includes a connecting plate and a locking plate, the connecting plate being disposed on the mounting base, and the locking plate being locked onto the connecting plate.

[0010] Preferably, a mounting plate is provided at the opening of the mounting slot, and a locking rod is threadedly connected to the side wall of the mounting plate, with the inner end of the locking rod abutting against the bottom of the mounting slot.

[0011] Preferably, the outer end of the clamping plate is provided with a toggle piece.

[0012] In summary, the beneficial technical effects of this application are as follows:

[0013] When the motor needs to be connected to a circuit with a different voltage, first move the actuating plate to rotate the clamping plate, so that one end of the clamping plate is away from the fixed plate. Then, one end of the transformer connection wire located between the clamping plate and the fixed plate slides out. Next, rotate the locking rod so that the inner end of the locking rod is away from the bottom of the mounting slot. Then, the corresponding transformer end can be selected and inserted between the clamping plate and the fixed plate. Then, release the actuating plate. Under the action of the tension spring, the clamping plate and the fixed plate press and fix one end of the transformer, thus adapting to the current circuit voltage. As can be seen from the above, since the transformer on the changeover switch only has two terminals, the area occupied by the changeover switch is greatly reduced, and the adaptability of the changeover switch is improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the changeover switch of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the changeover switch of this utility model from another perspective;

[0016] Figure 3 This is a cross-sectional schematic diagram of the second terminal of this utility model;

[0017] Figure 4 This is a cross-sectional schematic diagram of the mounting slot of this utility model.

[0018] In the diagram: 1. Mounting base; 2. Knob; 3. First terminal; 4. Second terminal; 5. Adjusting block; 6. Drive block; 7. Extension plate; 8. Mounting slot; 9. Connecting plate; 10. Locking plate; 11. Tension spring; 12. Fixing plate; 13. Pressure plate; 14. Fixing tip; 15. Actuating piece; 16. Placement slot; 17. Mounting plate; 18. Locking rod; 19. Pressure plate; 20. Torsion block; 21. Storage rack; 22. Storage plate; 23. Guide rod; 24. Guide slope. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] This application discloses a voltage conversion switch.

[0021] Reference Figure 1 and Figure 2The device includes a mounting base 1, a knob 2, a first terminal 3, and a second terminal 4. The mounting base 1 has a rotating groove on its side wall. The knob 2 includes an adjusting block 5 and a driving block 6. The adjusting block 5 has a fan-shaped cross-section and two contact points on its peripheral side wall. The adjusting block 5 is rotatably connected to the rotating groove. The driving block 6 is a hexagonal nut. One end of the adjusting block 5 passes through the bottom of the rotating groove and is connected to the driving block 6. The mounting base 1 has an extension plate 7 integrally provided on its side wall near the rotating groove. The mounting base 1 has a mounting groove 8 on its upper side. The first terminal 3 is located on the extension plate 7, and the second terminal 4 is located in the mounting groove 8.

[0022] The first terminal 3 includes a connecting plate 9 and a locking plate 10. The connecting plate 9 is fixed on the extension plate 7, and the locking plate 10 is fixed to the connecting plate 9 by bolts. One end of the transformer is sandwiched between the connecting plate 9 and the locking plate 10. One end of the connecting plate 9 is integrally connected to a first contact point, which is embedded in the inner wall of the rotating groove.

[0023] Reference Figure 3 The second terminal 4 includes a tension spring 11, a fixing plate 12, and a clamping plate 13. The fixing plate 12 is fixed to the bottom of the mounting groove 8. A second contact is integrally provided on one side of the fixing plate 12. The second contact is embedded in the inner side wall of the rotating groove. One end of the clamping plate 13 is rotatably connected to the side wall of the mounting groove 8. The tension spring 11 is vertically placed between the fixing plate 12 and the clamping plate 13. One end of the tension spring 11 is fastened and fixed to the lower side of the fixing plate 12, and the other end of the tension spring 11 is fastened and fixed to the upper side of the clamping plate 13. A plurality of fixing tips 14 are evenly and integrally provided on the lower side of the outer end of the clamping plate 13. A toggle piece 15 is integrally provided on the outer end of the clamping plate 13.

[0024] Reference Figure 4 The mounting base 1 has a mounting groove 16 on its upper side. The mounting groove 8 is located on one side of the mounting groove 8. The mounting plate 17 is fixed above the mounting groove 16 by bolts. The mounting plate 17 has a locking rod 18 vertically threaded in the side wall of the mounting plate 17. The lower end of the locking rod 18 is fixed with a pressure plate 19. The upper end of the locking rod 18 is integrally fixed with a torsion block 20. The bottom of the mounting groove 16 is a storage rack 21. The storage rack 21 includes multiple storage plates 22 and four guide rods 23. The lower ends of the four guide rods 23 are respectively inserted and fixed in the four corner side walls of the lower storage plate 22. The remaining storage plates 22 are vertically placed above the lower storage plate 22. The remaining storage plates 22 are sleeved and slid around the four guide rods 23. The upper and lower sides of the outer end of the storage plate 22 are respectively provided with guide slopes 24. One end of the transformer wiring is located between two adjacent storage plates 22.

[0025] The implementation principle of a voltage conversion switch disclosed in this application is as follows:

[0026] Move the actuating piece 15 to rotate the clamping plate 13, causing one end of the clamping plate 13 to move away from the fixing plate 12. Then, one end of the transformer connecting wire located between the clamping plate 13 and the fixing plate 12 slides out. Then, rotate the locking rod 18 to move the inner end of the locking rod 18 away from the bottom of the mounting slot 16. Then, the corresponding transformer end can be selected and inserted between the clamping plate 13 and the fixing plate 12. Then, release the actuating piece 15. Then, under the action of the tension spring 11, the clamping plate 13 and the fixing plate 12 press and fix one end of the transformer, thereby adapting to the current circuit voltage.

[0027] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A voltage conversion switch, comprising a mounting base (1), a knob (2), a first terminal (3), and two second terminals (4), wherein the knob (2) is rotatably connected to the mounting base (1), the first terminal (3) is disposed on the side wall of one end of the mounting base (1), and the two second terminals (4) are disposed on the side wall of the other end of the mounting base (1), characterized in that: The mounting base (1) has a mounting slot (16) on its side wall. The first terminal (3) is connected to one end of all the transformers, and the two second terminals (4) are connected to the other end of two of the transformers respectively. The other end of the remaining transformers is placed in the mounting slot (16).

2. A voltage transfer switch according to claim 1, characterised in that The mounting base (1) has two mounting slots (8) on its side wall, and the two second terminals (4) are respectively fixed in the mounting slots (8).

3. A voltage conversion switch according to claim 2, characterized in that, The second terminal (4) includes a tension spring (11), a fixing plate (12) and a clamping plate (13). The fixing plate (12) is fixed to the bottom of the mounting groove (8). One end of the clamping plate (13) is rotatably connected to the side wall of the mounting groove (8). The tension spring (11) is located between the fixing plate (12) and the clamping plate (13). The tension spring (11) drives the clamping plate (13) to approach the fixing plate (12).

4. A voltage transfer switch according to claim 3, characterised in that The clamping plate (13) has a fixed tip (14) evenly distributed on one side near the fixing plate (12).

5. A voltage transfer switch according to claim 1, wherein, The first terminal (3) includes a connecting plate (9) and a locking plate (10). The connecting plate (9) is disposed on the mounting base (1), and the locking plate (10) is locked onto the connecting plate (9).

6. A voltage transfer switch according to claim 1, wherein, An installation plate (17) is provided at the opening of the mounting slot (16), and a locking rod (18) is threadedly connected to the side wall of the mounting plate (17). The inner end of the locking rod (18) abuts against the bottom of the mounting slot (16).

7. A voltage transfer switch according to claim 3, wherein The outer end of the clamping plate (13) is provided with a toggle piece (15).

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