CN203368377U - Control circuit and switch apparatus - Google Patents
Control circuit and switch apparatus Download PDFInfo
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- CN203368377U CN203368377U CN 201320437499 CN201320437499U CN203368377U CN 203368377 U CN203368377 U CN 203368377U CN 201320437499 CN201320437499 CN 201320437499 CN 201320437499 U CN201320437499 U CN 201320437499U CN 203368377 U CN203368377 U CN 203368377U
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Abstract
The utility model discloses a motor control circuit of switch apparatus and a piece of switch apparatus, which can achieve fast braking of a motor in the switch apparatus. The control circuit comprises a control switch, a first position switch, a second position switch, a first diode, and a second diode. When the switch apparatus reaches a first position, the first position switch operates; and when the switch apparatus reaches a second position, the second position switch operates. Two common contacts of the control switch are wiring terminals of a power source. A first normally closed contact is connected to a normally closed contact of the first position switch, a second normally open contact is connected to a normally closed contact of the second position switch, and common contacts of the two position switches are connected to three terminals of a first electrode of a motor. A normally open contact of the first position switch is connected to the anode of the first diode, the cathode of the first diode is connected to the anode of the second diode, and the cathode of the second diode is connected to a normally open contact of the second position switch. A first normally open contact, a second normally closed contact and three terminals of a second electrode of the motor are connected to form a wiring node, which is connected to a connecting wire between the two diodes.
Description
Technical field
The utility model relates to low-voltage electrical apparatus, particularly control circuit and the device for switching of motor in a kind of device for switching.
background technology
In prior art, device for switching in low-voltage electrical apparatus arrives assigned address, while needing motor in device for switching to be braked, due to effect of inertia, motor rotor after stopping power supply can not stop operating immediately, and now motor is equivalent to generator, externally exports electric energy.If motor can not be braked in time, may cause damage to switching device.
The control circuit that Fig. 1 is motor in a kind of device for switching of comparatively commonly using at present, when controlling the motor forward, control second switch SW2 closure, and the first common COM11 that controls the 3rd switch SW 3 is connected to the first normally opened contact NO11, the second common COM22 is connected to the second normally opened contact NO22, after power input Vin+ and Vin-switch on power, can form the current supply circuit of motor M in circuit, motor M is in the forward state; When device for switching arrives assigned address, needing to control second switch SW2 disconnects, and control the 3rd switch SW 3 first common COM11 and reset and be connected to the first normally-closed contact NC11, the second common COM22 resets and is connected to the second normally-closed contact NC22, can make in circuit to form loop and consume the electric energy that motor M produces because of effect of inertia, realize the motor M braking.When motor reversal and inverted status braking, operation principle is similar, is not described in detail in this.
Visible, the prior art scheme, when motor braking, needs the intervention of control signal can realize the braking of motor, so can affect the retro-speed of motor, and reliability is lower.
the utility model content
The utility model embodiment provides control circuit and the device for switching of motor in a kind of device for switching, in order to
The control circuit of motor in a kind of device for switching, comprise control switch, primary importance switch, second place switch, the first diode and the second diode, wherein:
Described primary importance switch motion when described device for switching arrives primary importance, described second place switch motion while arriving the second place;
The first common of described control switch and the second common are supply terminals;
The first normally-closed contact corresponding to described the first common connects the normally-closed contact of described primary importance switch, the second normally opened contact corresponding to described the second common connects the normally-closed contact of described second place switch, and the first utmost point three ends of the common of the common of described primary importance switch, described second place switch and described motor are connected;
The normally opened contact of described primary importance switch connects the anode of described the first diode, and the negative electrode of described the first diode connects the anode of described the second diode, and the negative electrode of described the second diode connects the normally opened contact of described second place switch;
The second normally-closed contact that corresponding the first normally opened contact, described the second common of described the first common is corresponding and the second utmost point three ends of described motor are connected to form the wiring node;
Described wiring node is connected on the connecting line between the anode of the negative electrode of described the first diode and described the second diode.
Preferably, described control circuit also comprises:
Resistance unit, described wiring node is connected to by described resistance unit on the connecting line between the anode of the negative electrode of described the first diode and described the second diode.
Further, described resistance unit comprises a plurality of series connection and/or resistance in parallel.
Further, described the first common is the cathode power supply input, first positive pole of motor very of described motor; And described the second common is the negative power supply input, second negative pole of motor very of described motor.
Further, described the first common is the negative power supply input, first negative pole of motor very of described motor; And described the second common is the cathode power supply input, second positive pole of motor very of described motor.
A kind of device for switching, comprise above-mentioned control circuit.
The scheme that the utility model provides, when device for switching arrives assigned address, can automatically form loop in the control circuit of motor and consume the electric energy that motor produces because of inertia, do not need to input other control signal, braking procedure is simple, has realized the fast braking of motor.
The accompanying drawing explanation
Fig. 1 is the control circuit schematic diagram of motor in device for switching in prior art;
One of schematic diagram of the control circuit of motor in the device for switching that Fig. 2 provides for the utility model embodiment;
In the device for switching that Fig. 3 provides for the utility model embodiment two of the schematic diagram of the control circuit of motor.
Embodiment
In order to provide the implementation of motor fast braking, the utility model embodiment provides control circuit and the device for switching of motor in a kind of device for switching, below in conjunction with Figure of description, preferred embodiment of the present utility model is described, be to be understood that, preferred embodiment described herein is only for description and interpretation the utility model, and is not used in restriction the utility model.And, in the situation that do not conflict, embodiment and the feature in embodiment in the application can combine mutually.
The utility model embodiment provides the control circuit of motor in a kind of device for switching, as shown in Figure 2, comprises control switch SW, primary importance switch S P1, second place switch S P2, the first diode D1 and the second diode D2, wherein:
Primary importance switch S P1 action when device for switching arrives primary importance, second place switch S P2 action while arriving the second place; The first common COM01 and the second common COM02 of control switch SW are supply terminals; The first normally-closed contact NC01 that the first common COM01 is corresponding connects the normally-closed contact NC1 of primary importance switch S P1, the second normally opened contact NO02 that the second common COM02 is corresponding connects the normally-closed contact NC2 of second place switch S P2, and the first utmost point three ends of the common COM2 of the common COM1 of primary importance switch S P1, second place switch S P2 and motor M are connected; The normally opened contact NO1 of primary importance switch S P1 connects the anode of the first diode D1, and the negative electrode of the first diode D1 connects the anode of the second diode D2, and the negative electrode of the second diode D2 connects the normally opened contact NO2 of second place switch S P2; The second utmost point three ends of the second normally-closed contact NC02 that the first normally opened contact NO01 that the first common COM01 is corresponding, the second common COM02 are corresponding and motor M are connected to form wiring node O; Wiring node O is connected on the connecting line between the anode of the negative electrode of the first diode D1 and the second diode D2.
Above-mentioned control switch SW is specifically as follows relay switch, by the power-on and power-off of control relay coil, controls the first common COM01 and the second common COM02 action.
In the control circuit shown in Fig. 2, the first common COM01 is cathode power supply input Vin+, first positive pole of motor M very of motor M, and the second common COM02 is negative power supply input Vin-, second negative pole of motor M very of motor M; In other embodiment of the present utility model, the first common COM01 can be also negative power supply input Vin-, first utmost point of motor M can be also the negative pole of motor M, the second common COM02 can be also cathode power supply input Vin+, and second utmost point of motor M can be also the positive pole of motor M.
The control circuit provided in order to further illustrate the utility model embodiment, below the operation principle of the control circuit shown in Fig. 2 is set forth:
In Fig. 2, when controlling the motor M forward, control switch SW does not need action, and the first common COM01 is connected to the first normally-closed contact NC01, and the second common COM02 is connected to the second normally-closed contact NC02; In primary importance switch S P1, common COM1 is connected to normally-closed contact NC1.After power input Vin+ and Vin-switch on power, the normally-closed contact NC1 of power supply, the first common COM01, the first normally-closed contact NC01, primary importance switch S P1, the common COM1 of primary importance switch S P1, motor M, the second normally-closed contact NC02, the second common COM02 have formed a closed-loop path, now motor M is born forward voltage, in the forward state.
When device for switching arrives primary importance, primary importance switch S P1 action, the common COM1 of primary importance switch S P1 is connected to normally opened contact NO1, the current supply circuit of motor M disconnects, due to effect of inertia, now motor M is in operation state of generator, in circuit, the normally opened contact NO1 of the common COM1 of motor M, primary importance switch S P1, primary importance switch S P1, the first diode D1 have formed a closed-loop path, consume motor M because the electric energy that effect of inertia produces has been realized the braking of motor M when the forward state.
When controlling the motor M reversion, need to control control switch SW action, make the first common COM01 be connected to the first normally opened contact NO01, the second common COM02 is connected to the second normally opened contact NO02; In second place switch S P2, common COM2 is connected to normally-closed contact NC2.After power input Vin+ and Vin-switch on power, the common COM2 of power supply, the first common COM01, the first normally opened contact NO01, motor M, second place switch S P2, the normally-closed contact NC2 of second place switch S P2, the second normally opened contact NO02, the second common COM02 have formed a closed-loop path, now motor M is born reverse voltage, in inverted status.
When device for switching arrives the second place, second place switch S P2 action, the common COM2 of second place switch S P2 is connected to normally opened contact NO2, the current supply circuit of motor M disconnects, due to effect of inertia, now motor M is in operation state of generator, in circuit, the common COM2 of the normally opened contact NO2 of motor M, the second diode D2, second place switch S P2, second place switch S P2 has formed a closed-loop path, consume motor M because the electric energy that effect of inertia produces has been realized the braking of motor M when inverted status.
Visible, adopt the control circuit shown in Fig. 2, when device for switching arrives assigned address, just can automatically realize motor braking, do not need other control signal, braking procedure is simple, has realized the fast braking of motor.
Preferably, control circuit shown in above-mentioned Fig. 2 can also comprise resistance unit R, as shown in Figure 3, wiring node O is not directly connected on the connecting line between the anode of the negative electrode of the first diode D1 and the second diode D2, but by this resistance unit R, is connected on the connecting line between the anode of the negative electrode of the first diode D1 and the second diode D2.
Wherein, this resistance unit R can be specifically as follows a resistance, can be also the resistance unit of a plurality of series, parallel or series-parallel resistance composition.
The operation principle of the control circuit shown in Fig. 3 is when controlling the motor M forward, and the control circuit shown in Fig. 2 is identical, does not repeat them here.
And when device for switching arrival primary importance, when motor M is braked in the forward state, in circuit, the normally opened contact NO1 of the common COM1 of motor M, primary importance switch S P1, primary importance switch S P1, the first diode D1 and resistance unit R have formed a closed-loop path.Than the control circuit shown in Fig. 2, increased resistance unit R in closed-loop path, make power consumption quicker, improved the retro-speed of motor M.
When controlling the motor M reversion, operation principle and the control circuit shown in Fig. 2 of control circuit are also identical, do not repeat them here.
And when the device for switching arrival second place, when motor M is braked in inverted status, in circuit, the common COM2 of the normally opened contact NO2 of motor M, resistance unit R, the second diode D2, second place switch S P2, second place switch S P2 has formed a closed-loop path.In like manner, than the control circuit shown in Fig. 2, due to the existence of resistance unit R, improved the retro-speed of motor M.
Visible, adopt the control circuit shown in Fig. 3, further the lifting motor retro-speed, improve equipment dependability.
The utility model embodiment also provides a kind of device for switching, comprises the control circuit of above-mentioned Fig. 2 or the arbitrary motor of Fig. 3.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model embodiment.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes and modification interior.
Claims (6)
1. the control circuit of motor in a device for switching, is characterized in that, comprises control switch, primary importance switch, second place switch, the first diode and the second diode, wherein:
Described primary importance switch motion when described device for switching arrives primary importance, described second place switch motion while arriving the second place;
The first common of described control switch and the second common are supply terminals;
The first normally-closed contact corresponding to described the first common connects the normally-closed contact of described primary importance switch, the second normally opened contact corresponding to described the second common connects the normally-closed contact of described second place switch, and the first utmost point three ends of the common of the common of described primary importance switch, described second place switch and described motor are connected;
The normally opened contact of described primary importance switch connects the anode of described the first diode, and the negative electrode of described the first diode connects the anode of described the second diode, and the negative electrode of described the second diode connects the normally opened contact of described second place switch;
The second normally-closed contact that corresponding the first normally opened contact, described the second common of described the first common is corresponding and the second utmost point three ends of described motor are connected to form the wiring node;
Described wiring node is connected on the connecting line between the anode of the negative electrode of described the first diode and described the second diode.
2. control circuit as claimed in claim 1, is characterized in that, also comprises: resistance unit, described wiring node is connected to by described resistance unit on the connecting line between the anode of the negative electrode of described the first diode and described the second diode.
3. control circuit as claimed in claim 2, is characterized in that, described resistance unit comprises a plurality of series connection and/or resistance in parallel.
4. as claim 1,2 or 3 described control circuits, it is characterized in that, described the first common is the cathode power supply input, first positive pole of motor very of described motor; And
Described the second common is the negative power supply input, second negative pole of motor very of described motor.
5. as claim 1,2 or 3 described control circuits, it is characterized in that, described the first common is the negative power supply input, first negative pole of motor very of described motor; And
Described the second common is the cathode power supply input, second positive pole of motor very of described motor.
6. a device for switching, is characterized in that, comprises described control circuit as arbitrary as claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320437499 CN203368377U (en) | 2013-07-22 | 2013-07-22 | Control circuit and switch apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320437499 CN203368377U (en) | 2013-07-22 | 2013-07-22 | Control circuit and switch apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203368377U true CN203368377U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320437499 Expired - Lifetime CN203368377U (en) | 2013-07-22 | 2013-07-22 | Control circuit and switch apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203368377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839585A (en) * | 2021-10-19 | 2021-12-24 | 苏州伟创电气科技股份有限公司 | Brake control circuit, device and equipment |
-
2013
- 2013-07-22 CN CN 201320437499 patent/CN203368377U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839585A (en) * | 2021-10-19 | 2021-12-24 | 苏州伟创电气科技股份有限公司 | Brake control circuit, device and equipment |
| CN113839585B (en) * | 2021-10-19 | 2024-04-02 | 苏州伟创电气科技股份有限公司 | Brake control circuit, device and equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |