Electronic master controller

Abstract

The utility model relates to an electronic master controller, which comprises a support, an operating mechanism arranged on the support, a wire holder arranged on the support and a control circuit board arranged in the wire holder, and sealant wrapped on the control circuit board is filled in the wire holder. The operating mechanism comprises a spherical lining arranged in the support and an operating rod rotationally arranged on the spherical lining, a magnetic ring matched with the Hall sensing piece of the control circuit board is arranged at one end of the operating rod, a handle is arranged at the other end of the operating rod, a dustproof protective sleeve is arranged between the support and the operating rod, and the dustproof protective sleeve is connected with the operating rod. And a self-resetting assembly is arranged on the operating rod corresponding to the dustproof sheath. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly and good protection performance.

Description

Technical Field

[0001] The utility model relates to a master controller, in particular to an electronic master controller. Background Art

[0002] A master controller (also known as a master switch) is mainly used in an electric drive device to switch contacts in a certain sequence to issue commands or for other control circuit interlocking and conversion purposes. It is suitable for frequently connecting and disconnecting circuits, and is often used in conjunction with a magnetic starter to remotely control the starting, braking, speed regulation, and commutation of a wound asynchronous motor. It is widely used in the control systems of drive motors for various types of lifting machinery. The master controller includes a mechanism frame, an operating mechanism provided on the mechanism frame, and a contact system provided inside the mechanism frame. The existing electronic master controller has poor protection performance, and rainwater is likely to enter the interior of the master controller, causing the circuit board inside the master controller to fail due to being soaked by rainwater. Moreover, the master controller also has defects such as complex structure, unreliable performance, and inconvenient assembly. Summary of the Invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide an electronic master controller with a simple structure, stable and reliable performance, convenient assembly, and good protection performance.

[0004] To achieve the above purpose, the utility model adopts an electronic master controller, which includes a support, an operating mechanism provided on the support, a wiring base provided on the support, and a control circuit board provided inside the wiring base. The wiring base is filled with a sealant that wraps around the control circuit board. The operating mechanism includes a spherical bushing provided inside the support, and a control lever rotatably provided on the spherical bushing. A magnetic ring that cooperates with the Hall sensor of the control circuit board is provided at one end of the control lever, and a handle is provided at the other end of the control lever. A dust-proof sheath is provided between the support and the control lever, and a self-resetting component is provided on the control lever corresponding to the inside of the dust-proof sheath.

[0005] The beneficial effects of the above structure are as follows: The control circuit board of the master controller is sealed in the wiring base by means of sealing glue, which can play a role in waterproofing and dustproofing, and is beneficial to extending the service life of the control circuit board. Moreover, the self-resetting component is provided inside the dust-proof sheath, which is beneficial to improving the protection performance of the master controller. The self-resetting component can automatically reset the control lever to the zero position, which is convenient for users to operate and makes the operation more convenient. Therefore, the master controller has the advantages of a simple structure, stable and reliable performance, convenient assembly, and good protection performance.

[0006] Particularly, the self - resetting component includes a spring slider sleeved on the joystick, a spring seat arranged on the joystick, and a self - resetting spring. One end of the spring slider abuts against the support, and the other end of the spring slider has a convex ring portion that cooperates with the self - resetting spring. A positioning groove that cooperates with the self - resetting spring is arranged on the spring seat, and both ends of the self - resetting spring are respectively clamped in the positioning groove and the convex ring portion. During operation, the operator pulls the joystick, and the spring slider compresses the self - resetting spring. When the operator releases the joystick, the self - resetting spring pushes the spring slider to reset, thereby realizing the automatic reset of the joystick to the zero position. The self - resetting component can achieve the automatic reset of the joystick to the zero position, which is convenient for the user to operate and makes the operation more convenient.

[0007] Particularly, a fixing block that cooperates with the joystick is arranged inside the handle. The other end of the joystick has a screw rod portion, and the screw rod portion is connected in the threaded hole of the fixing block. The joystick is connected to the handle through the fixing block, and the joystick and the fixing block are assembled by a threaded connection method, which is beneficial to improving the assembly efficiency of the master controller.

[0008] Particularly, a clamping cavity is arranged inside the handle corresponding to the fixing block. The fixing block is clamped in the clamping cavity, and a clamping fit between the fixing block and the handle is formed. The fixing block and the handle are assembled by a clamping fit method, which is convenient for the assembly of the fixing block and the handle and has a higher assembly efficiency.

[0009] Particularly, a micro - switch component is arranged inside the handle. The micro - switch component includes a support frame arranged inside the handle, a micro - switch arranged on the support frame, a button slidably arranged on the support frame and used to trigger the micro - switch, and a compression spring arranged between the button and the support frame. A trigger is rotatably arranged on the outer wall of the handle corresponding to the button, and one end of the button extends outside the handle and abuts against the trigger. The micro - switch component adopts a modular structure design, which is beneficial to realizing the modular assembly of the micro - switch component and the handle and has a higher assembly efficiency. Description of the Drawings

[0010] Figure 1 It is a three - dimensional view of an embodiment of the present utility model.

[0011] Figure 2 It is a sectional view of an embodiment of the present utility model.

[0012] Figure 3 It is an internal structure diagram of an embodiment of the present utility model. Detailed Embodiment

[0013] Such as Figures 1 to 3As shown in the figure, an embodiment of the utility model is an electronic master controller, which includes a support 10, an operating mechanism 20 arranged on the support 10, a terminal block 11 arranged on the support 10, and a control circuit board 12 arranged in the terminal block 11. The terminal block 11 is filled with a sealant 13 wrapped around the control circuit board 12. The operating mechanism 20 includes a spherical bushing 21 arranged in the support 10 and a joystick 22 rotatably arranged on the spherical bushing 21. A magnetic ring 23 cooperating with the Hall sensor of the control circuit board 12 is arranged at one end of the joystick 22, and a handle 24 is arranged at the other end of the joystick 22. A dust-proof sheath 25 is arranged between the support 10 and the joystick 22, and a self-resetting component 30 is arranged on the joystick 22 corresponding to the inside of the dust-proof sheath 25. The self-resetting component 30 includes a spring slider 31 sleeved on the joystick 22, a spring seat 32 arranged on the joystick 22, and a self-resetting spring 33. One end of the spring slider 31 abuts against the support 10, and the other end of the spring slider 31 has a convex ring portion 311 cooperating with the self-resetting spring 33. A positioning groove 321 cooperating with the self-resetting spring 33 is arranged on the spring seat 32. Both ends of the self-resetting spring 33 are respectively clamped in the positioning groove 321 and the convex ring portion 311. During operation, the operator pulls the joystick, and the spring slider compresses the self-resetting spring. When the operator releases the joystick, the self-resetting spring pushes the spring slider to reset, so as to realize the automatic reset of the joystick to the zero position. The self-resetting component can realize the automatic reset of the joystick to the zero position, which is convenient for the user to operate and makes the operation more convenient. A fixing block 26 cooperating with the joystick 22 is arranged in the handle 24. The other end of the joystick 22 has a screw portion 221, and the screw portion 221 is connected in a threaded hole 261 of the fixing block 26. The joystick is connected to the handle through the fixing block, and the joystick and the fixing block are assembled by a threaded connection method, which is beneficial to improving the assembly efficiency of the master controller. A clamping cavity 241 corresponding to the fixing block 26 is arranged in the handle 24, and the fixing block 26 is clamped in the clamping cavity 241, and a clamping fit between the fixing block 26 and the handle 24 is formed. The fixing block and the handle are assembled by a clamping fit method, which is convenient for the assembly of the fixing block and the handle and has higher assembly efficiency.

[0014] As Figure 2 , 3As shown, a microswitch assembly 40 is provided inside the handle 24. The microswitch assembly 40 includes a support frame 41 provided inside the handle 24, a microswitch 42 provided on the support frame 41, a button 43 slidably provided on the support frame 41 and used to trigger the microswitch 42, and a compression spring 44 provided between the button 43 and the support frame 41. A trigger 45 is rotatably provided on the outer wall of the handle 24 corresponding to the button 43. One end of the button 43 extends outside the handle 24 and abuts against the trigger 45. The microswitch assembly adopts a modular structure design, which is conducive to realizing the modular assembly of the microswitch assembly and the handle, and the assembly efficiency is higher.

[0015] The control circuit board of the master controller is hermetically arranged in the terminal block by means of potting, which can play a role in waterproofing and dustproofing, and extend the service life of the control circuit board. And the self-resetting component is arranged in the dust-proof sheath, which is conducive to improving the protection performance of the master controller, and the self-resetting component can realize the automatic reset of the joystick to the zero position, thus facilitating the user's operation and making the operation more convenient. Therefore, the master controller has the advantages of simple structure, stable and reliable performance, convenient assembly, and good protection performance.

Claims

1. An electronic master controller, characterized in that: It includes a support, an operating mechanism arranged on the support, a wiring seat arranged on the support, and a control circuit board arranged in the wiring seat. The wiring seat is filled with a sealant wrapped on the control circuit board. The operating mechanism includes a spherical bushing arranged in the support, and a joystick rotatably arranged on the spherical bushing. A magnetic ring matching the Hall sensor of the control circuit board is arranged on one end of the joystick, and a handle is arranged on the other end of the joystick. A dustproof cover is arranged between the support and the joystick, and a self-resetting component is arranged in the corresponding dustproof cover on the joystick.

2. The electronic master controller according to claim 1, characterized in that: The self-resetting component includes a spring slide mounted on the operating rod, a spring seat arranged on the operating rod, and a self-resetting spring. One end of the spring slide abuts against the support, and the other end of the spring slide has a convex ring portion that matches the self-resetting spring. The spring seat is provided with a positioning groove that matches the self-resetting spring, and the two ends of the self-resetting spring are respectively engaged in the positioning groove and the convex ring portion.

3. The electronic master controller according to claim 1 or 2, characterized in that: A fixing block matched with the joystick is arranged in the handle, and the other end of the joystick is provided with a screw rod part, and the screw rod part is connected in the threaded hole of the fixing block.

4. The electronic master controller according to claim 3, characterized in that: A clamping cavity is arranged in the handle corresponding to the fixing block, and the fixing block is clamped in the clamping cavity to form a clamping fit between the fixing block and the handle.

5. The electronic master controller according to claim 1 or 2, characterized in that: A micro switch assembly is arranged in the handle, and the micro switch assembly includes a support frame arranged in the handle, a micro switch arranged on the support frame, a button slidably arranged on the support frame and used to trigger the micro switch, and a compression spring arranged between the button and the support frame. A trigger is rotatably arranged on the outer wall of the handle corresponding to the button, and one end of the button extends outside the handle and abuts against the trigger.

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