CN210684259U - Door lock control device and washing equipment with same - Google Patents
Door lock control device and washing equipment with same Download PDFInfo
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- CN210684259U CN210684259U CN201921248953.4U CN201921248953U CN210684259U CN 210684259 U CN210684259 U CN 210684259U CN 201921248953 U CN201921248953 U CN 201921248953U CN 210684259 U CN210684259 U CN 210684259U
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Abstract
The utility model provides a door lock controlling means and washing equipment who has device, wherein, door lock controlling means includes: the switch assembly is connected with a power supply loop of the door lock and is used for controlling the on and off of the power supply loop; a first signal receiving end for receiving a first control signal; the second signal receiving end is used for receiving a second control signal; the drive circuit, drive circuit with the switch module first signal receiving terminal with the second signal receiving terminal links to each other, drive circuit basis first control signal with the control of second control signal the switch module switches on or shuts off, with control switching on and shutting off of power supply circuit to, can control the lock through double-circuit control mechanism, prevent that the lock is out of control because of the single-point, improve the security of household electrical appliances operation.
Description
Technical Field
The utility model relates to a washing electrical apparatus field especially relates to a door lock control device and washing equipment who has device.
Background
In the related art, a circuit is usually used to control the operation of a washing device such as a dryer door lock, but there is a problem in that when the circuit fails at a single point, the dryer door lock may be uncontrolled, with a potential risk of user scald.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
Therefore, the utility model discloses a first aim at provides a lock control device, controls the lock through double-circuit control mechanism, prevents that the lock from losing efficacy because of the single-point uncontrolled, improves the security of household electrical appliances operation.
A second object of the present invention is to provide a washing apparatus with the device.
In order to achieve the above object, the present invention provides, in a first aspect, a door lock control device, including: the switch assembly is connected with a power supply loop of the door lock and is used for controlling the on and off of the power supply loop; a first signal receiving end for receiving a first control signal; the second signal receiving end is used for receiving a second control signal; and the driving circuit is connected with the switch assembly, the first signal receiving end and the second signal receiving end, and controls the switch assembly to be switched on or switched off according to the first control signal and the second control signal so as to control the power supply loop to be switched on and switched off.
According to the utility model provides a lock controlling means, drive circuit receives first control signal and receives the second control signal through the second signal receiving terminal through first signal receiving terminal, and switch on or turn-off according to first control signal and second control signal control switch subassembly, switch on and turn-off with control power supply circuit, from this, control the lock through double-circuit control mechanism, prevent that the lock from becoming invalid uncontrolled because of the single-point, improve the security of household electrical appliances operation, ensure user's personal safety.
In addition, according to the utility model provides a door lock controlling means can also have following additional technical characterstic:
further, a first driving sub-circuit and a second driving sub-circuit are connected in series, a first end of the first driving sub-circuit is connected to the switch component, a first end of the second driving sub-circuit is connected to a second end of the first driving sub-circuit, a second end of the second driving sub-circuit is grounded, a control end of the first driving sub-circuit is connected to the first signal receiving end, and a control end of the second driving sub-circuit is connected to the second signal receiving end, wherein the first driving sub-circuit is turned on or off under the control of the first control signal, and the second driving sub-circuit is turned on or off under the control of the second control signal.
Further, the first driving sub-circuit includes: one end of the first resistor is connected with a first signal receiving end; one end of the second resistor is connected with the other end of the first resistor, and the other end of the second resistor is grounded; and the control electrode of the first switch tube is connected with the other end of the first resistor, the first electrode of the first switch tube is connected with the switch component, and the second electrode of the first switch tube is connected with the second driving sub-circuit.
The second drive sub-circuit includes: one end of the third resistor is connected with the second signal receiving end; one end of the fourth resistor is connected with the other end of the third resistor, and the other end of the fourth resistor is grounded; and the control electrode of the second switch tube is connected with the other end of the third resistor, the first electrode of the second switch tube is connected with the first driving sub-circuit, and the second electrode of the second switch tube is grounded.
Specifically, the power supply loop of the door lock comprises a first power line and a second power line, wherein the first end of the switch assembly is connected with the first end of the door lock, the second end of the switch assembly is connected with the first power line, the control end of the switch assembly is connected with the first driving sub-circuit, and the second end of the door lock is connected with the second power line.
Further, the switch component comprises a relay, one end of a contact of the relay is connected with the first end of the door lock, the other end of the contact of the relay is connected with the first power line, one end of a coil of the relay is connected with the first driving sub-circuit, and the other end of the coil of the relay is connected with a preset power supply.
Further, the ground door lock control device also comprises a ground protection unit connected with the switch assembly in parallel.
Further, the protection unit comprises a diode, an anode of the diode is connected with one end of the coil of the relay, and a cathode of the diode is connected with the other end of the coil of the relay.
In order to achieve the above object, the second aspect of the present invention provides a washing apparatus having the door lock control device according to the first aspect of the present invention.
According to the utility model provides a washing equipment controls the lock through double-circuit control mechanism, prevents that the lock from because of the single-point inefficacy uncontrolled, improves the security of household electrical appliances operation, ensures user personal safety.
In addition, according to the utility model provides a washing equipment can also have following additional technical characterstic:
the washing equipment can be a washing machine, a clothes dryer or a washing and drying integrated machine.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic block diagram of a door lock control device according to an embodiment of the present invention;
fig. 2 is a block diagram schematically illustrating a door lock control device according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a door lock control device according to an embodiment of the present invention;
fig. 4 is a schematic view of the connection between the door lock and the door lock control device according to an embodiment of the present invention; and
fig. 5 is a block diagram of a washing apparatus according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The door lock control device and the washing apparatus having the same according to the embodiments of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of a door lock control device according to an embodiment of the present invention. As shown in fig. 1, the door lock control device includes a switch assembly 101, a first signal receiving terminal D1, a second signal receiving terminal D2, and a driving circuit 103.
The switch assembly 101 is connected with a power supply loop 11 of the door lock 1, and the switch assembly 101 is used for controlling the on and off of the power supply loop 11; the first signal receiving end D1 is configured to receive a first control signal; the second signal receiving end D2 is configured to receive a second control signal; the driving circuit 103 is connected to the switch assembly 101, the first signal receiving terminal D1 and the second signal receiving terminal D2, and the driving circuit 103 is configured to control the switch assembly 101 to be turned on or off according to the first control signal and the second control signal, so as to control the power supply loop 11 to be turned on or off.
In some embodiments of the present invention, the door lock control device can be used for a washing device, and the first signal receiving terminal D1 and the second signal receiving terminal D2 can be connected to the main control chip of the washing device, that is, the main control chip of the washing device can trigger a locking/unlocking button, etc. according to the operation of the user, and output the first control signal and the second control signal to the first signal receiving terminal D1 and the second signal receiving terminal D2.
It should be understood that the driving circuit 103 controls the power supply loop 11 to be turned on and off according to two control signals, i.e. the first control signal and the second control signal. Specifically, when the door lock does not need to be locked or unlocked, for example, when the washing device does not work, the two control signals output by the main control chip may be both off signals, that is, the first control signal is the first off signal and the second control signal is the second off signal, at this time, if the door lock works normally, for example, the main control chip is normal and the transmission from the main control signal to the first signal receiving terminal D1 and the second signal receiving terminal D2 is normal, then, the first signal receiving terminal D1 receives the first off signal and the second signal receiving terminal D2 receives the second off signal, the driving circuit 103 drives the switch assembly 101 to be turned off according to the first off signal and the second off signal, and at this time, the door lock 1 does not work.
If a failure occurs, for example, a failure occurs in the master control chip or a failure occurs in the transmission of the master control signal to the first signal receiving terminal D1 or the second signal receiving terminal D2, the first signal receiving terminal D1 may not receive the first off signal or the second signal receiving terminal D2 may not receive the second off signal, that is, when one of the first signal receiving terminal D1 and the second signal receiving terminal D2 receives the on signal, the switch assembly 101 may still be turned off, and the door lock 1 remains inoperative. From this, compare with correlation technique, this application is when only a signal receiving terminal receives wrong signal because of the trouble, and lock 1 still keeps out of work to, control the lock through double-circuit control mechanism, prevent that the lock from because of the single-point is invalid and uncontrolled, improve the security of household electrical appliances operation, ensure user's personal safety.
In addition, when the door lock needs to be locked or unlocked, for example, when a locking or unlocking key is triggered, both the two control signals output by the main control chip are on signals, that is, the first control signal is a first on signal and the second control signal is a second on signal, at this time, if the door lock works normally, for example, the main control chip is normal and the transmission from the main control signal to the first signal receiving terminal D1 and the second signal receiving terminal D2 is normal, then the first signal receiving terminal D1 receives the first on signal and the second signal receiving terminal D2 receives the second on signal, the driving circuit 103 drives the switch assembly 101 to be turned on according to the first on signal and the second on signal, the power supply loop 11 of the door lock 1 is turned on, and the door lock 1 acts to realize locking or unlocking.
If a fault occurs, for example, the master control chip fails or the transmission of the master control signal to the first signal receiving terminal D1 or the second signal receiving terminal D2 fails, then the first signal receiving terminal D1 may not receive the first on signal or the second signal receiving terminal D2 may not receive the second on signal, that is, when the first signal receiving terminal D1 or the second signal receiving terminal D2 receives the off signal, the driving circuit 103 may drive the switch assembly 101 to turn off, the power supply circuit 11 of the door lock 1 remains off, at this time, the door lock 1 does not operate, the fault detection circuit of the washing equipment may detect the fault of the door lock, and then the master control chip of the washing equipment may report a fault code of the door lock, and prompt the user to suspend the use of the whole machine and contact the maintenance.
Further, when switch module 101 switches on, lock 1 can move, and then realize locking or unblock, for example, main control chip is when sending the instruction of locking, and the last circuit control lock 1 of unlocking of accessible lock locks to with the door body locking, make the door body unable the opening under the exogenic action that the user applyed, main control chip is when sending the instruction of unlocking, the last circuit control lock 1 unblock of accessible lock, thereby with the door body unblock, make the door body can open under the exogenic action that the user applyed. When the switch assembly 101 is turned off, the door lock 1 does not work, and the door lock does not have locking or unlocking actions.
Therefore, the utility model discloses a lock controlling means controls the lock through double-circuit control mechanism, prevents that the lock from because of the single-point inefficacy is uncontrolled, improves the security of household electrical appliances operation, ensures user's personal safety.
It should be noted that the first on signal may be a high level signal or a low level signal. Similarly, the second turn-on signal may be a high level signal or a low level signal. The first and second opening signals may be the same level signal, for example, both are low level signals or high level signals, or may be different level signals, for example, one is a low level signal, and the other is a high level signal, which is not limited by the present invention. In addition, the turn-off signal and the turn-on signal may be opposite-phase signals, and taking the first control signal as an example, when the first turn-on signal is a high level signal, the first turn-off signal may be a low level signal, and when the first turn-on signal is a low level signal, the first turn-off signal may be a high level signal.
Further, according to an embodiment of the present invention, the driving circuit 103 includes: the driving circuit comprises a first driving sub-circuit 31 and a second driving sub-circuit 33, wherein the first driving sub-circuit 31 and the second driving sub-circuit 33 are connected in series, a first terminal of the first driving sub-circuit 31 is connected with the switching component 101, a first terminal of the second driving sub-circuit 33 is connected with a second terminal of the first driving sub-circuit 31, a second terminal of the second driving sub-circuit 33 is connected with the GND, a control terminal of the first driving sub-circuit 31 is connected with a first signal receiving terminal D1, and a control terminal of the second driving sub-circuit 33 is connected with a second signal receiving terminal D2, wherein the first driving sub-circuit 31 is turned on or off under the control of a first control signal, and the second driving sub-circuit 33 is turned on or off under the control of a second control signal.
That is, when the first control signal received by the first signal receiving terminal D1 is the first on signal, the first driving sub-circuit 31 is turned on, and when the first control signal received by the first signal receiving terminal D1 is the first off signal, the first driving sub-circuit 31 is turned off, and similarly, when the second control signal received by the second signal receiving terminal D2 is the second on signal, the second driving sub-circuit 33 is turned on, and when the second control signal received by the second signal receiving terminal D2 is the second off signal, the second driving sub-circuit 33 is turned off.
When both the first drive sub-circuit 31 and the second drive sub-circuit 33 are on, the switch assembly 101 is connected to ground, the switch assembly 101 is on, the power supply circuit 11 in the door lock 1 is powered, when one of the first drive sub-circuit 31 and the second drive sub-circuit 33 is off, the switch assembly 101 is not connected to ground, the switch assembly 101 is off, and the power supply circuit 11 in the door lock 1 is powered off.
Specifically, as shown in fig. 3, the first drive sub-circuit 31 includes: a first resistor R1, a second resistor R2 and a first switch tube Q1. One end of the first resistor R1 is connected with the first signal receiving end D1; one end of the second resistor R2 is connected with the other end of the first resistor R1, and the other end of the second resistor R2 is grounded GND; a control electrode of the first switch Q1 is connected to the other end of the first resistor R1, a first electrode of the first switch Q1 is connected to the switch component 101, and a second electrode of the first switch Q1 is connected to the second driving sub-circuit 33.
As shown in fig. 3, the second drive sub-circuit 33 includes: a third resistor R3, a fourth resistor R4 and a second switch tube Q2. One end of the third resistor R3 is connected with the second signal receiving end D2; one end of the fourth resistor R4 is connected with the other end of the third resistor R3, and the other end of the fourth resistor R4 is grounded; a control electrode of the second switch Q2 is connected to the other end of the third resistor R5, a first electrode of the second switch Q2 is connected to the first driving sub-circuit 31, and a second electrode of the second switch Q2 is grounded to GND.
The first switch Q1 and the second switch Q2 may be transistors, such as NPN transistors.
It is understood that when the first signal receiving terminal D1 receives a first on signal, for example, a high level signal, the base potential of the first switch Q1 is higher than the emitter potential, the first switch Q1 is turned on, when the first signal receiving terminal D1 receives a first off signal, for example, a low level signal, the base potential of the first switch Q1 is substantially equal to the emitter potential, the first switch Q1 is turned off, and similarly, when the second signal receiving terminal D2 receives a second on signal, for example, a high level signal, the base potential of the second switch Q2 is higher than the emitter potential, the second switch Q2 is turned on, when the second signal receiving terminal D2 receives a second off signal, for example, a low level signal, the base potential of the second switch Q2 is substantially equal to the emitter potential, and the second switch Q2 is turned off.
According to an embodiment of the present invention, as shown in fig. 3-4, the power supply loop 11 of the door lock 1 may include a first power line X1 and a second power line X2, the first end of the switch component 101 is connected to the first end of the door lock 1, the second end of the switch component 101 is connected to the first power line X1, the control end of the switch component 101 is connected to the first driving sub-circuit 31, wherein the second end N of the door lock 1 is connected to the second power line X2.
The first power line X1 may be live line, and correspondingly, the second power line X2 may be neutral line, or the first power line X1 may be neutral line, and correspondingly, the second power line X2 may be live line. In addition, the first end of the door lock 1 may be an L line, and the second end of the door lock 1 may be an N line.
Taking the first power line X1 as an example of a live line, when the switch assembly 101 is turned on, the live line can be connected to the first end L of the door lock 1 through the switch assembly 101, and the second end N of the door lock 1 is always connected to the neutral line, so that the power supply loop 11 of the door lock 1 is turned on, and the door lock 1 is powered on to lock or unlock the door lock.
As shown in fig. 4, the door lock 1 further has a third terminal, the third terminal of the door lock 1 is a controlled power line X3, the controlled power line X3 can be connected to a load of the washing apparatus, such as a motor, etc., when the switch assembly 101 is turned on, the first terminal L of the door lock 1 is connected to the first power line X1, the coil in the door lock 1 is powered on to push the driving member to move to lock or unlock, and the position of the driving member in the door lock 1 is different, which may determine that the door lock 1 is in a locked or unlocked state. Specifically, when the driving element moves to lock the door lock 1 which is originally in the unlocked state, the third end N1 of the door lock 1 is conducted with the second end N of the door lock 1, and then the load of the washing equipment connected with the controlled power line X3 is electrified and is in the working state; when the driving member moves to unlock the door lock 1 which is originally in the locked state, the third end N1 of the door lock 1 is not conducted with the second end N of the door lock 1, and then the load of the washing equipment connected with the controlled power line X3 is not electrified and is in the non-working state. Therefore, the safety of the whole machine is further improved.
According to an embodiment of the present invention, as shown in fig. 3-4, the switch assembly 101 includes a relay KL1, one end of the contact of the relay KL1 is connected to the first end L of the door lock 1, the other end of the contact of the relay KL1 is connected to the first power line X1, one end of the coil of the relay KL1 is connected to the first driving sub-circuit 31, and the other end of the coil of the relay KL1 is connected to a predetermined power VCC, for example, 12V.
It can be understood that when the first switch tube Q1 and the second switch tube Q1 are both turned on, one end of the coil of the relay KL1 is connected to the ground GND through the first switch tube Q1 and the second switch tube Q1, the other end of the coil of the relay KL1 is connected to the preset power source VCC, and then the coil of the relay KL1 is energized, the contact of the relay KL1 is turned on, the power supply circuit 11 of the door lock 1 is turned on, the door lock 1 is energized, and the locking or unlocking operation can be performed.
As one embodiment, the first on signal and the second on signal each select a high level signal. When the first signal receiving end D1 receives a high level and the second signal receiving end D2 also receives a high level, the first switch tube Q1 and the second switch tube Q1 are both turned on, the coil of the relay KL1 is energized, the contact of the relay KL1 is turned off after being attracted for 1 time (lasting 30mS), the first end L of the door lock 1 is turned off after being turned on for 30mS with the first power line X1, and the door lock is operated for 1 time in 30mS, so that locking or unlocking is realized, and the specific process is as follows: the coil in the door lock 1 in 30mS is switched on to act, the driving piece is pushed to move, when the moving position of the driving piece hooks the door hook, the third end N1 of the door lock 1 is switched on with the second end N of the door lock 1, and then the load of the washing equipment connected with the controlled power line X3 is electrified and is in a working state; when the driving member is not hooked on the door hook, the third terminal N1 of the door lock 1 is not conducted with the second terminal N of the door lock 1, and thus the load of the washing device connected with the controlled power line X3 is not electrified and is in a non-operating state.
When the first signal receiving end D1 receives a high level and the second signal receiving end D2 receives a low level, the first switch tube Q1 is turned on, the second switch tube Q1 is not turned on, the coil of the relay KL1 is not energized, the contact of the relay KL1 is not attracted, the first end L of the door lock 1 and the first power line X1 are in an off state, the door lock 1 cannot be locked or unlocked, the driving member in the door lock 1 is located at the home position, the third end N1 of the door lock 1 and the second end N of the door lock 1 are kept in the original state, and further, the load of the washing equipment connected with the controlled power line X3 is also kept in the original state.
When the first signal receiving end D1 receives a low level and the second signal receiving end D2 receives a high level, the first switch tube Q1 is not turned on, the second switch tube Q1 is turned on, the coil of the relay KL1 is not energized, the contact of the relay KL1 is not attracted, the first end L of the door lock 1 and the first power line X1 are in an off state, the door lock 1 cannot be locked or unlocked, the driving member in the door lock 1 is located at the home position, the third end N1 of the door lock 1 and the second end N of the door lock 1 are kept in the original state, and further, the load of the washing equipment connected with the controlled power line X3 is also kept in the original state.
When the first signal receiving end D1 receives a low level and the second signal receiving end D2 also receives a low level, the first switch tube Q1 is turned on, the second switch tube Q1 is not turned on, the coil of the relay KL1 is not energized, the contact of the relay KL1 is not attracted, the first end L of the door lock 1 and the first power line X1 are in an off state, the door lock 1 cannot be locked or unlocked, the driving member in the door lock 1 is located at the home position, the third end N1 of the door lock 1 and the second end N of the door lock 1 are kept in the original state, and further, the load of the washing equipment connected with the controlled power line X3 is also kept in the original state.
Further, according to an embodiment of the present invention, as shown in fig. 3, the door lock control device further includes: and a protection unit 105, wherein the protection unit 105 is connected with the switch assembly 101 in parallel.
Specifically, the protection unit 105 includes a diode D1, an anode of the diode D11 is connected to the first drive sub-circuit 31 and one end of the coil of the relay KL1, respectively, and a cathode of the diode D1 is connected to the other end of the coil of the relay KL 1.
Referring to fig. 3-4, the operation principle of the door lock control device according to the embodiment of the present invention is as follows:
as one embodiment, the first on signal and the second on signal each select a high level signal. The locking or unlocking of the door lock 1 can be controlled by two ports of the main control chip, the two ports of the main control chip are respectively connected with a first signal receiving end D1 and a second signal receiving end D2, when the first signal receiving end D1 and the second signal receiving end D2 both receive high level signals, a triode Q1 and a Q2 are both conducted, the anode of a diode D1 is at a low level, the other end of a coil of the relay KL is connected with a 12V power supply, one end of the coil of the relay KL is at a low level, so that the contact of the relay KL is attracted, when the contact of the relay KL is attracted, the third end 3PIN of a connector CN15 is communicated with a live wire, the third end 3PIN of the connector CN15 is connected with the first end L of the door lock, further, the door lock 1 is powered on.
Therefore, only when the output signals of the two ports of the main control chip are normally transmitted to the first signal receiving end D1 and the second signal receiving end D2, the door lock 1 can be normally locked and unlocked, so that double guarantee is provided for normal work of the door lock 1, and single-point failure is avoided.
When the first signal receiving end D1 receives a low level signal, the triode Q1 is turned off, or when the second signal receiving end D2 receives a low level signal, the triode Q2 is turned off, the coil of the relay KL is powered off, the contact of the relay KL is not attracted, when the contact of the relay KL is not attracted, the third end 3PIN of the connector CN15 cannot be connected with a live wire, the first end L of the door lock cannot be connected with the live wire, and the door lock 1 is powered off and does not act.
Therefore, when one or two of the output signals of the two ports of the main control chip cannot be normally transmitted to the first signal receiving end D1 and the second signal receiving end D2, the door lock 1 does not work, at the moment, the door lock detection circuit finds that the actual state of the door lock is inconsistent with the state of the main chip sending instruction, the whole machine reports an error code of the door lock fault, and the user is prompted to suspend the whole machine and contact maintenance.
To sum up, according to the utility model discloses according to the embodiment provides a door lock controlling means, drive circuit receives first control signal and receives the second control signal through second signal receiving terminal through first signal receiving terminal, and switch on or turn-off according to first control signal's second control signal control switch subassembly, switch on and turn-off with control power supply loop, from this, control the lock through double-circuit control mechanism, prevent that the lock from losing efficacy because of the single-point and uncontrolled, improve the security of household electrical appliances operation, ensure user's personal safety.
Based on above-mentioned embodiment, the embodiment of the utility model provides a washing equipment has still been provided.
Fig. 5 is a schematic block diagram of a washing apparatus according to the present invention. As shown in fig. 5, the washing apparatus 200 includes a door lock control device 100.
Wherein, the washing device 200 may be a washing machine, a dryer, or a washing and drying machine.
According to the utility model discloses washing equipment that provides controls the lock through double-circuit control mechanism, prevents that the lock from because of the single-point inefficacy is uncontrolled, improves the security of household electrical appliances operation, ensures user's personal safety.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A door lock control apparatus, characterized by comprising:
the switch assembly is connected with a power supply loop of the door lock and is used for controlling the on and off of the power supply loop;
a first signal receiving end for receiving a first control signal;
the second signal receiving end is used for receiving a second control signal;
and the driving circuit is connected with the switch assembly, the first signal receiving end and the second signal receiving end, and controls the switch assembly to be switched on or switched off according to the first control signal and the second control signal so as to control the power supply loop to be switched on and switched off.
2. The door-lock control device according to claim 1, wherein the drive circuit includes:
the first end of the first driving sub-circuit is connected with the switch component, the first end of the second driving sub-circuit is connected with the second end of the first driving sub-circuit, the second end of the second driving sub-circuit is grounded, the control end of the first driving sub-circuit is connected with the first signal receiving end, and the control end of the second driving sub-circuit is connected with the second signal receiving end, wherein the first driving sub-circuit is switched on or off under the control of the first control signal, and the second driving sub-circuit is switched on or off under the control of the second control signal.
3. The door lock control device according to claim 2, wherein the first driving sub-circuit includes:
one end of the first resistor is connected with a first signal receiving end;
one end of the second resistor is connected with the other end of the first resistor, and the other end of the second resistor is grounded;
and the control electrode of the first switch tube is connected with the other end of the first resistor, the first electrode of the first switch tube is connected with the switch component, and the second electrode of the first switch tube is connected with the second driving sub-circuit.
4. The door lock control device according to claim 2, wherein the second driving sub-circuit includes:
one end of the third resistor is connected with the second signal receiving end;
one end of the fourth resistor is connected with the other end of the third resistor, and the other end of the fourth resistor is grounded;
and the control electrode of the second switch tube is connected with the other end of the third resistor, the first electrode of the second switch tube is connected with the first driving sub-circuit, and the second electrode of the second switch tube is grounded.
5. The door lock control device according to claim 2, wherein the power supply circuit of the door lock includes a first power supply line and a second power supply line, wherein,
the first end of the switch assembly is connected with the first end of the door lock, the second end of the switch assembly is connected with the first power line, the control end of the switch assembly is connected with the first driving sub-circuit, and the second end of the door lock is connected with the second power line.
6. The door lock control device according to claim 5, wherein the switch assembly includes a relay, one end of a contact of the relay is connected to the first end of the door lock, the other end of the contact of the relay is connected to the first power supply line, one end of a coil of the relay is connected to the first driving sub-circuit, and the other end of the coil of the relay is connected to a preset power supply.
7. The door-lock control device according to claim 6, further comprising:
and the protection unit is connected with the switch assembly in parallel.
8. The door-lock control device according to claim 7, wherein the protection unit includes a diode, an anode of the diode is connected to one end of the coil of the relay, and a cathode of the diode is connected to the other end of the coil of the relay.
9. A washing appliance, characterized in that it comprises a door lock control device according to any one of claims 1 to 8.
10. The washing apparatus as claimed in claim 9, wherein the washing apparatus is a washer, dryer, washer dryer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921248953.4U CN210684259U (en) | 2019-08-02 | 2019-08-02 | Door lock control device and washing equipment with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921248953.4U CN210684259U (en) | 2019-08-02 | 2019-08-02 | Door lock control device and washing equipment with same |
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| CN210684259U true CN210684259U (en) | 2020-06-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065169A (en) * | 2020-09-21 | 2020-12-11 | 珠海格力电器股份有限公司 | Child lock control circuit, dish washing machine and control method thereof |
| CN115390485A (en) * | 2022-07-27 | 2022-11-25 | 广达创芯电子技术(杭州)有限公司 | Load protection alarm circuit of double NMOS (N-channel metal oxide semiconductor) tubes |
-
2019
- 2019-08-02 CN CN201921248953.4U patent/CN210684259U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065169A (en) * | 2020-09-21 | 2020-12-11 | 珠海格力电器股份有限公司 | Child lock control circuit, dish washing machine and control method thereof |
| CN112065169B (en) * | 2020-09-21 | 2021-07-06 | 珠海格力电器股份有限公司 | Child lock control circuit, dish washing machine and control method thereof |
| CN115390485A (en) * | 2022-07-27 | 2022-11-25 | 广达创芯电子技术(杭州)有限公司 | Load protection alarm circuit of double NMOS (N-channel metal oxide semiconductor) tubes |
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