Mechanical transmission contactor

Abstract

The mechanical transmission contactor comprises an integrated base box body and an upper box sealing cover, the integrated base box body is a six-surface flat box body integrated by a motor operation box body, a main power supply movable contact movement box body, an external control power supply movable contact movement box body and a left and right travel switch box body which are the same in length and height, and the upper box sealing cover is arranged above the integrated base box body; a running motor and a movable contact moving shaft are arranged in the integrated base box body, the motor runs to drive the movable contact moving shaft to move in different directions, so that a movable contact arranged in the movable contact moving shaft is connected or disconnected with a static contact in the corresponding box body, and an electric appliance is powered off or powered on; the mechanical transmission contactor breaks through the transmission mode of electromagnetic transmission of an existing contactor, does not consume electricity when supplying power to electric appliances, and saves energy; the contactor is a non-heating contactor, can be sealed, and is safer in work and wider in application; the integrated box body is convenient to maintain, and the use cost is reduced.

Description

Technical Field

[0001] The present application relates to a mechanical transmission contactor and a matching on-off switch. Background Art

[0002] A contactor is an important electrical appliance for starting or stopping the operation of modern industrial control electrical appliances. The working principle of the existing contactor is electromagnetic drive. A magnetic force is generated by an energized electromagnetic coil to pull the iron core provided with a moving contact to move, so that the moving and static contacts are in contact, and the electrical appliance is energized and operates. And the electromagnetic coil needs to be continuously energized for the electrical appliance to operate normally. After power-off, the electromagnetic coil loses magnetism, the moving contact returns to its original position, the power supply is disconnected, and the electrical appliance is turned off. The larger the power of the electrical appliance, the larger the power of the required contactor and the electromagnetic coil. When the existing contactor energizes the electrical appliance, it is also an electrical appliance itself, consuming a large amount of electric energy. The electromagnetic coil generates heat easily and burns out under continuous power supply. Therefore, heat dissipation holes are provided in the contactor housing at the electromagnetic coil. The existing contactor cannot be sealed and is limited in use in different environments. The housing of the existing contactor is integral, and the power connection screws of the contactor are all exposed, posing a certain safety hazard. As long as one static contact fixing screw gets hot and loosens from the housing, the entire contactor cannot be repaired and has to be scrapped, increasing the use cost of the contactor. In view of the above deficiencies, a new type of contactor is provided herein. Summary of the Invention

[0003] A mechanical transmission contactor comprises: an integrated base box body and an upper box sealing cover, wherein the integrated base box body is a six-sided square box body fixed by integrated screws, which is composed of a motor operation box body, a main power supply moving contact movement box body, an external control power supply moving contact movement box body, and a travel switch box body, which are of the same length and height and can be integrated and modularized; the right side of the motor operation box body is two main power supply moving contact movement box bodies, and the left side is adjacent to a main power supply moving contact movement box body, which is adjacent to the external control power supply moving contact movement box body; both ends of the box body are travel switch boxes in the left and right directions. The box body is provided with one or more concentric fixing screw holes, which are fixed by the fixing screw holes; concentric circular holes with the same diameter are provided in the middle of the upper part of the adjacent box bodies, and a moving contact movement shaft with a diameter matching the circular hole is provided in the middle of the concentric circular holes. The moving contact movement shaft is provided with a transmission tooth at the position of the motor movement box body, a single-sided moving contact is provided in the same direction at the main power moving contact movement box body, and a double-sided moving contact is provided at the external control current moving contact movement box body; the motor operation box body is provided with a running motor, the motor has a power-off self-braking function, and the motor output shaft is provided with a moving contact The transmission teeth on the motion shaft are matched with rotating teeth, and the two sets of teeth intersect. A motor power terminal is provided above the box body; a static contact with a terminal is provided on the right side of the main power moving contact motion box body; static contacts with terminals are provided on both sides of the external control power movement box body; the travel switch box body is divided into left and right directions, a static contact with a terminal is provided on the inside side of the box body, and the travel switch body is arranged on the outside side of the box body, a return spring and a travel shaft are provided in the travel switch body, a moving contact is provided in the travel shaft, and the travel shaft is directly opposite to the moving contact motion shaft, and the travel switch A fixing screw cap is provided at the outer inner corner of the upper part of the box body, and a contactor foot with a hole is provided at the outer outer corner of the lower part of the travel switch box body. The static contact of the power input end of the travel switch is connected to the adjacent main power static contact by the power line, and the static contact of the power output end is connected to the control switch by the power line, and the control switch is connected to the motor; the upper box sealing cover is adapted to the upper part of the integrated box body, and a screw hole is provided at the corresponding fixing screw cap on the travel switch. A sealing gasket is provided between the upper box cover and the integrated box body, which is fixed by a fixing screw; the front and rear boxes of the adjacent terminals are provided with wire through holes, and rubber sealing gaskets are provided in the through holes.

[0004] Furthermore, the main power supply moving contact movement box body and the external control power supply moving contact movement box body can be increased or decreased according to actual requirements, the corresponding moving contact movement axis can be lengthened or shortened, the corresponding single-sided moving contact setting number can be increased or decreased, and the corresponding double-sided moving contact setting number can be set.

[0005] Furthermore, an instant on / off switch matched with a mechanical transmission contactor comprises a switch body, wherein the upper and lower parts of the body are provided with static contacts for power in and out, a return spring, and a switch travel shaft, wherein the travel shaft is provided with double-sided moving contacts.

[0006] A mechanical transmission contactor has the following advantages.

[0007] 1. It has broken through the structure and operation mode of contactors since their birth. It does not require electricity during operation, saving energy and being environmentally friendly.

[0008] 2. Without an electromagnetic coil, it does not use electricity during operation, does not generate heat, the contactor can be sealed, is safe, and can be used in various environments, with a wider range of applications.

[0009] 3. The base with modular integrated assembly can be designed with more moving and static contact combinations according to requirements, facilitating maintenance and reducing usage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 , Top view of the mechanical drive contactor assembly.

[0011] Figure 2 , Top view of the upper box sealing cover and gasket.

[0012] Figure 3 , Cross-sectional view of the rubber sealing gasket.

[0013] Figure 4 , Cross-sectional view of the on-off switch.

[0014] Figure 5 , Effect diagram of the mechanical drive contactor controlled by a conventional switch.

[0015] Figure 6 , Effect diagram of the mechanical drive contactor controlled by the on-off switch. DETAILED DESCRIPTION OF THE INVENTION

[0016] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, a mechanical transmission contactor and a matching on-off switch include: 1. travel switch box body, 2. travel switch body, 3. power-off power cord, 4. power-off switch, 5. power-on switch, 6. power-on power cord, 7. integrated box body fixing screw, 8. travel switch static contact, 9. travel switch power-on power cord, 10. main power supply static contact, 11. main power supply moving contact moving box body, 12. main power supply single-sided contact moving contact, 13. motor operation box body, 14. moving contact moving shaft, 15. moving motor, 16. moving motor power connection terminal, 17. external control power supply double-sided contact moving contact, 18. external control power supply moving contact moving box body, 19. travel switch moving contact, 20. fixing screw cap, 21. power cord inlet and outlet hole, 22. external control power supply static contact, 23. upper box sealing cover, 24. upper box sealing gasket, 25. upper box sealing cover fixing screw, 26. rubber sealing gasket, 27. wire perforation inside the rubber sealing gasket, 28. contactor with hole bottom feet, 29. on-off switch double-sided moving contact, 30. on-off switch body, 31. on-off switch travel shaft, 32. on-off switch static contact.

[0017] A mechanical transmission contactor includes an integrated base box body and an upper box sealing cover. The integrated base box body is as Figure 5 , Figure 6As shown in the figure, it is a square box body with six flat sides, which is formed by integrating the motor operation box body 13, the main power moving contact motion box body 11, the external control power moving contact motion box body 18, and the travel switch box body 1 with the same length and height through an integrated screw 7. On the right side of the motor operation box body 13, there are two main power moving contact motion box bodies 11a and 11b, and on the left side, there is a main power moving contact motion box body 11c. Adjacent to 11c is the external control power moving contact motion box body 18, and at both ends are the left and right travel switch box bodies 1a and 1b respectively. One or more concentric fixed screw perforations are provided correspondingly on all box bodies. The fixed screw 7 passes through the concentric fixed screw perforations to fix various box bodies with the same height and length in a modular manner, forming a square box body with six flat sides. In the middle above the adjacent parts of different box bodies, there are concentric circular holes with the same diameter. Inside the circular holes, there is a moving contact motion shaft 14 with a diameter adapted to the circular holes. The length of the moving contact motion shaft is the distance between the two circular holes at both ends. The moving contact motion shaft 14 is provided with a transmission gear at the position of the motor motion box body 13, and main power single-sided moving contacts 12 with the contacts facing right in the same direction are respectively set at the positions of the main power moving contact motion box bodies 11a, 11b, and 11c. An external control power double-sided contact moving contact 17 is set at the position of the external control power moving contact motion box body. Inside the motor operation box body 13, there is a motion motor 15, which has a power-off self-braking function. The output shaft of the motion motor 15 is provided with a rotating gear adapted to the transmission gear of the moving contact motion shaft, and the two gears intersect. Above the box body, there are a zero-line contact terminal 16a and power supply connection terminals 16b for different operating directions of the motor respectively. On the right side of the main power moving contact motion box bodies 11a, 11b, and 11c, input and output power supplies are respectively set on both sides of the moving contact motion shaft 14, with a static contact 10b with a connection terminal for the input power supply and a static contact 10a with a connection terminal for the output power supply. Inside the external control power moving contact motion box body 18, input power supplies and output power supply static contacts 22 with connection terminals are respectively set on the left and right sides and on both sides of the moving contact motion shaft 14. The travel switch box body is divided into left and right directions. Inside the left travel switch box body 1a, output and input power supply static contacts 8a are set on both sides of the moving contact motion shaft 14. Inside the right travel switch box body 1b, input and output power supply static contacts 8b are set on both sides of the moving contact motion shaft 14. The input power supply static contact 8a is connected to the input static contact 10b in the main power moving contact motion box body 11c by a power line 9a, and the input power supply static contact 8b is connected to the input static contact 10b in the main power moving contact motion box body 11a by a power line 9b. The travel switches 2a and 2b are respectively set on the outer sides of the travel switch box bodies 1a and 1b, and are provided with a return spring and a travel shaft. Inside the travel shaft, there are travel switch moving contacts 19a and 19b. The travel shaft is opposite to the moving contact motion shaft 14. Fixed screw caps 20 are provided at the upper outer corners of the travel switch box bodies 1a and 1b, and contactor feet 28 with holes are provided at the lower outer corners.Above the integrated base box body, corresponding to the front and rear box bodies, there are power line perforations 21 in the box body. There is a rubber gasket 26 in the perforation 21. There is a groove at the position corresponding to the box body of the gasket 26, and a perforation 27 smaller than the straight line of the power line is provided in the middle, such as; Figure 3 ; The upper box body sealing cover 23 is adapted to the upper part of the integrated base box body. There are screw holes corresponding to the fixed screw nuts 20, and a sealing gasket 24 is provided between the upper box body sealing cover and the integrated base box body, and it is fixed by the fixing screws 25, such as Figure 2 ; After the upper box sealing cover is fixed, the Figure 1 effect is obtained. Each box body in the integrated base box body is an independent sealed box body. The contactor base box body is a modular box body integration. According to actual application requirements, the number of main power moving contact motion box bodies 11 and the number of external control power moving contact motion box bodies 18 can be increased or decreased. Correspondingly, the length of the moving contact motion shaft 14 and the number of main power single-sided moving contacts 12 and the number of external control power double-sided moving contacts 17 are increased or decreased.

[0018] An on-off switch that is matched with a mechanical transmission contactor, such as Figure 4 , includes a switch body 30. There are upper and lower static contacts 32 for the power supply of the motor with different rotation directions in the switch body 30, a switch stroke shaft 31, a double-sided moving contact 29 is provided in the stroke shaft, and a return spring is provided in the body.

[0019] Embodiment 1

[0020] Such as Figure 1 、 Figure 5 shown. For the mechanical transmission contactor controlled by a conventional switch, the fixing screws pass through the contactor foot holes 28 and are fixed to the set position. Open the upper box sealing cover 23 of the contactor. The power-off power line 3 passes through the perforation 27 in the rubber gasket 26, and connects the output power static contact 8a in the travel switch box body 1a and the contactor power-off switch 4. The other end of the power-off switch 4 is connected to the terminal 16b that makes the moving contact motion shaft 14 move to the left when the motor 15 is running. The power-on power line 6 connects the output power static contact 8b in the travel switch box body 1b and the contactor power-on switch 5. The other end of the power-on switch 5 is connected to the terminal 16b that makes the moving contact motion shaft 14 move to the right when the motor 15 is running. The zero line of the motor 15 is connected to the zero line terminal 16a; The mechanical transmission contactor is set to the power-off state at the factory, such as Figure 5 , the moving contact motion shaft 14 moves to the left, pushing open the contact between the travel switch moving contact 19a and the static contact 8a in the travel switch box body 1a. The double-sided moving contact 17 in the external control power moving contact motion box body 18 contacts the static contact 22, which is also the normally closed contact set by the existing contactor. The right static contact is the normally open contact, which can be used as a switch to control the external power supply; The moving contact 19b in the travel switch box body 1b is connected to the input and output static contact 8b under the push of the return spring.

[0021] The three-phase power supply with a neutral line passes through the perforation 27 in the sealing rubber pad 26 from the static contact end of the terminal 10b. The three-phase positive power supplies are respectively connected to the static contacts 10b in the moving contact boxes 11a, 11b, and 11c of the main power supply. The neutral line is connected to the motor power terminal 16a. After the 10a in 11a, 11b, and 11C is connected to the electrical appliance, cover the upper box sealing cover 23. As Figure 1 , there is not a single live screw exposed outside the entire contactor. The 1a, 1b, 11a, 11b, 11c, 13, and 18 in the integrated base box are all independent sealed spaces. If one of the boxes is damaged, the same box can be replaced, which is convenient for maintenance and reduces the use cost. After being powered on, the input static contacts 10b in the moving contact boxes 11a, 11b, and 11c of the main power supply are all energized. Due to the connection of the power supply wires 9a and 9b of the travel switch, the input static contact 8a in the travel switch box 1a is also energized, and the input static contact 8b in the travel switch box 1b is energized. Through the connection of the moving contact 19b of the travel switch 2b, the output static contact 8 of the power supply output end is energized, and the power supply wire 6 is also energized; press the contactor power-on switch 5, the motor 15 rotates, drives the moving contact moving shaft 14 to move to the right through the transmission of the teeth, drives the single-sided moving contact 12 arranged inside the shaft to move to the right, and is respectively connected to 10a and 10b in the box, and the electrical appliance operates normally. At the same time, it drives the double-sided moving contact 17 to move to the right and is connected to the right static contact 22 in the box to provide power for the external control power supply; the moving contact moving shaft 14 moving to the right pushes the travel shaft of the travel switch 2b to move to the right, drives the moving contact 19 of the travel switch to move to the right, separates the moving contact 19b from the static contact 8b, the power supply wire 6 is powered off, the motor 15 stops running, and the powered-off motor self-brakes and does not rotate, ensuring the stable contact between the moving and static contacts of the contactor and normally and smoothly powering on the electrical appliance. During the power-on process, the contactor itself does not consume power or generate heat; when the moving contact moving shaft 14 moving to the right leaves the travel switch box 1a, the return spring in the travel switch 1a returns, pushes the travel shaft of the travel switch to move to the right, and the moving contact 19a arranged inside the travel shaft is connected to the input and output static contact 8a on the inner side of the box, and the power-off wire 3 is powered on. Press the contactor power-off switch 4, the motor 15 operates, and the contactor returns to the power-off state set at the factory, turning off the electrical appliance. Embodiment 1 is more suitable for various machines that do not need to be frequently started, such as water pumps.

[0022] Embodiment 2

[0023] As Figure 4 , Figure 6As shown, a mechanical transmission contactor controlled by an on-off switch. Above the on-off switch 30, there is a power-off static contact 32a, and below it, there is a power-on static contact 32b. Inside the on-off switch body 30, there is a return spring and a switch shaft 31. A double-sided moving contact 29 is arranged inside the switch shaft 31. The power-off power line 3 is connected to the power-off static contact 32a, and the power-on power line 6 is connected to the power-on static contact 32b, and then respectively connected to the connection terminal 16b corresponding to the running direction of the running motor 15. The contactor connects the power lines in the power-off state. After being powered on, the power-on power line 6 is powered on. Pressing the on-off switch causes the stroke shaft 31 to drive the double-sided moving contact 29 to move downward and connect to the power-on static contact 32b. The motor 15 runs and drives the moving contact moving shaft 14 to move to the right, and the contactor is powered on, and the electrical appliance works normally. The moving contact 19b of the travel switch is separated from the static contact 8b, the power-on power line 6 is powered off, the moving motor 15 stops running, the moving contact 19a of the travel switch is connected to the static contact 8a, the power-off power line 3 is powered on, and the on-off switch is released. The stroke shaft 31 moves upward under the push of the return spring, and the double-sided contact 29 moves upward and connects to the power-off static contact 32a. The motor 15 runs in the opposite direction, driving the moving contact moving shaft 14 to rotate to the left, the contactor is powered off, the power-off power line 3 is powered off, and the power-on power line 6 is powered on. In this way, as long as the on-off switch stroke shaft 31 is pressed, the mechanical transmission contactor will be powered on, and when the on-off switch stroke shaft 31 is released, the mechanical transmission contactor will be powered off. Embodiment 2 is more suitable for controlling mechanical operations, such as cranes, etc.

[0024] Although the above has given a detailed description and explanation of the specific embodiments of the present invention, it should be pointed out that we can make various equivalent changes and modifications to the above embodiments according to the concept of the present invention. As long as the functions and effects generated do not exceed the spirit covered by the specification, they should all be within the protection scope of the present invention.

Claims

1. A mechanical transmission contactor, comprising: An integrated base box body and an upper box sealing cover, wherein the integrated base box body is a six-sided flat square box body fixed by integrated screws, which is composed of a motor running box body, a main power supply moving contact movement box body, an external control power supply moving contact movement box body, and a travel switch box body with the same length and height and can be integrated modularly; On the right side of the motor running box are two main power moving contact moving box bodies, and on the left side is a main power moving contact moving box body, which is adjacent to the external control power moving contact moving box body; The two ends of the box body are travel switch boxes in the left and right directions; each box body is provided with more than one concentric fixing screw through-hole, which is fixed by the fixing screw through-hole; concentric circular holes with the same diameter are provided in the middle position above the adjacent box bodies, and a moving contact movement shaft with a diameter matching the circular hole is provided in the middle of the concentric circular holes, and the moving contact movement shaft is provided with a transmission tooth at the position of the motor movement box body, a single-sided moving contact is provided in the same direction at the position of the main power moving contact movement box body, and a double-sided moving contact is provided at the position of the external control current moving contact movement box body; a running motor is provided in the motor operation box body, and the motor has a power-off self-braking function, and the motor output shaft is provided with rotating teeth matching the transmission teeth on the moving contact movement shaft, and the two sets of teeth intersect, and a motor power terminal is provided above the box body; a static contact with a terminal is provided on the right side of the main power moving contact movement box body; both sides of the external control power movement box body are provided with a terminal. Static contact; the travel switch box body is divided into left and right directions, a static contact with a terminal is provided on one side inside the box body, the travel switch body is arranged on one side outside the box body, a return spring and a travel shaft are provided in the travel switch body, a moving contact is provided in the travel shaft, the travel shaft is directly opposite to the moving axis of the moving contact, a fixing screw nut is provided at the upper inner corner of the travel switch box body, a contactor foot with a hole is provided at the lower outer corner of the travel switch box body, the static contact at the power input end of the travel switch is connected to the adjacent main power static contact by a power line, the static contact at the power output end is connected to the control switch by a power line, and the control switch is connected to the motor; the upper box sealing cover is adapted to the upper surface of the integrated box body, a screw hole is provided at the corresponding fixing screw nut on the travel switch, a sealing gasket is provided between the upper box cover and the integrated box body, and is fixed by a fixing screw; the front and rear box bodies of adjacent terminals are provided with wire through-holes, and rubber sealing gaskets are provided in the through-holes.

2. According to claim 1, the main power supply moving contact movement box body and the external control power supply moving contact movement box body can be increased or decreased according to actual requirements, the corresponding moving contact movement axis can be lengthened or shortened, the corresponding number of single-sided moving contacts set can be increased or decreased, and the corresponding number of double-sided moving contacts set can be increased or decreased.

3. An instant-on / off switch matched with a mechanical transmission contactor, comprising a switch body, wherein the upper and lower parts of the body are provided with static contacts for power in and out, a return spring, and a switch travel shaft, wherein the travel shaft is provided with double-sided moving contacts.

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