CN217741343U - Quick charging structure of swimming pool cleaning machine - Google Patents
Quick charging structure of swimming pool cleaning machine Download PDFInfo
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- CN217741343U CN217741343U CN202221367842.7U CN202221367842U CN217741343U CN 217741343 U CN217741343 U CN 217741343U CN 202221367842 U CN202221367842 U CN 202221367842U CN 217741343 U CN217741343 U CN 217741343U
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Abstract
The utility model provides a swimming pool cleaning machine quick charge's structure connects between swimming pool cleaning machine's the mouth and the battery that charge, and the structure includes: the sampling module is connected between the charging port and the battery and used for collecting current in the charging loop; the switch module is connected between the charging port and the battery and used for controlling the voltage on-off of the battery leakage loop; the comparison module detects the current direction of the sampling module to control the on-off of the switch module; and the voltage stabilizing module is respectively connected with the anode and the cathode of the charging port and supplies power to the comparison module. The beneficial effects of the utility model are that the current direction on the comparison module detects sampling resistor, according to the direction output control of electric current the break-make of the switch module between mouth and the battery that charges, switch module switches on when realizing charging, and the back is putd aside to the charger, and switch module closes.
Description
Technical Field
The utility model belongs to the technical field of swimming pool cleaning device, especially, relate to a swimming pool cleaning machine quick charge's structure.
Background
When the swimming pool cleaning machine with the battery runs in a swimming pool, in order to avoid corrosion of a charging port, one or more unidirectional conductive diode devices are generally arranged in a charging loop to prevent the lithium battery from leaking electricity through the charging port, and the charging current of the battery is greatly limited by the diode, so that higher heating can be caused when the larger charging current passes through the diode, and the running reliability of the machine is seriously influenced. For a swimming pool cleaning machine with a large-capacity battery, the charging time is often longer, and the experience effect of a user is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a swimming pool cleaning machine quick charge's structure to solve more than prior art exists or other problems.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a swimming pool cleaning machine quick charge's structure, connects between the mouth and the battery that charge of swimming pool cleaning machine, and the structure includes:
the sampling module is connected between the charging port and the battery and used for collecting current in the charging loop;
the switch module is connected between the charging port and the battery and used for controlling the voltage on-off of the battery leakage loop;
the comparison module detects the current direction of the sampling module to control the on-off of the switch module;
and the voltage stabilizing module is respectively connected with the anode and the cathode of the charging port and supplies power to the comparison module.
Furthermore, the sampling module is a sampling resistor.
Furthermore, the comparison module comprises a comparator and a first triode, wherein the reverse input end and the positive input end of the comparator are respectively connected to two ends of the sampling module, the first triode receives an output signal of the comparator, the comparator detects the current direction of the sampling module, and outputs positive voltage or negative voltage to control the conduction or the cut-off of the first triode.
Furthermore, a first resistor is connected between the comparator and the first triode, and a second resistor is connected between the base electrode and the emitting electrode of the first triode.
Furthermore, the switch module comprises a transistor, the transistor is provided with a parasitic diode, when the first triode is conducted, the charging port complete machine forms a loop with the negative electrode of the charging port through the transistor and the first triode, and the transistor is conducted to rapidly charge the battery; when the first triode is cut off, the transistor is cut off, and a circuit for leakage of the battery to the outside is cut off; and a third resistor is connected between the grid electrode of the transistor and the collector electrode of the first triode, and a fourth resistor is connected between the grid electrode of the transistor and the source electrode of the transistor.
Further, the transistor is a metal-oxide semiconductor field effect transistor; the normally open mechanical contact device is a relay.
Further, the structure still includes normally open contact module, locates between mouthful and the battery that charges, and normally open contact module is connected with switch module and sampling module series connection respectively, the break-make of control return circuit between mouthful and the battery that charges, and normally open contact module is connected with voltage stabilizing module, and voltage stabilizing module is the power supply of normally open contact module.
Furthermore, the normally open contact module is a normally open mechanical contact device.
Further, the voltage regulation module includes the second triode, first diode, fifth resistance and zener diode, the positive pole of first diode is connected with the positive pole of the mouth that charges, the negative pole of first diode is connected with the collecting electrode of second triode, the negative pole of first diode is connected with zener diode's negative pole through fifth resistance, zener diode's positive pole is connected with the negative pole of the mouth that charges, zener diode's negative pole is connected with the base of second triode, the projecting pole and the normally open contact module of second triode are connected, zener diode's positive pole and normally open contact module are connected.
Furthermore, an emitting electrode of the second triode and a negative electrode of the charging port are respectively connected with the comparator to supply power for the comparator.
Furthermore, the normally open contact module is connected in parallel with a second diode, the anode of the second diode is connected with the cathode of the charging port, and the cathode of the second diode is connected with the emitting electrode of the second triode.
By adopting the technical scheme, the rapid charging structure of the swimming pool cleaner is arranged between a charging port and a battery, a sampling module is arranged in a charging loop and can collect current between the charging port and the battery, a comparison module is arranged and detects the current direction on a sampling resistor, and the on-off of a switch module between the charging port and the battery is controlled according to the current direction output, so that the switch module is switched on when charging is realized, the switch module is closed after a charger is moved away, a normally-open mechanical contact device is disconnected, and charging is finished; the switch module adopts a metal-oxide semiconductor field effect transistor with low internal resistance, allows large current to pass through, and simultaneously avoids causing higher heating, thereby shortening the charging time, realizing quick charging and ensuring the running reliability of a machine; after the charger is moved away, the normally open mechanical contact device is disconnected, and the electrical connection between the charging port and the internal battery is disconnected, so that the phenomenon of electric leakage corrosion of the charging port of the swimming pool cleaning machine in water can be completely avoided, and the reliable operation of the machine is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure:
u1, comparator Q1, first triode Q2, second triode
Q3, transistor R1, first resistor R2 and second resistor
R3, a third resistor R4, a fourth resistor R5 and a fifth resistor
Rs, sampling resistor D1, first diode D2 and voltage stabilizing diode
D3, second diode K1 and mechanical contact device
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows the structural schematic diagram of an embodiment of the utility model, this embodiment relates to a swimming pool cleaning machine quick charge's structure, realizes that the charger carries out quick charge for the inside battery of swimming pool cleaning machine, in the charging circuit of mouth and battery that charges, has sampling module and comparison module, detects sampling module's current direction through comparison module, switching on and ending of output control switch module realizes quick charge, avoids arousing higher generating heat, guarantees the reliability of swimming pool cleaning machine operation.
The utility model provides a swimming pool cleaning machine quick charge's structure, as shown in FIG. 1, is connected with swimming pool cleaning machine's the mouth and the battery that charge respectively for realize swimming pool cleaning machine's quick charge, realize simultaneously that swimming pool machine is in the state of opening circuit between the mouth and the battery that charge when aquatic during operation, be in uncharged state, stop electric leakage corrosion phenomenon. The structure includes: the sampling module is arranged between the charging port and the battery and is used for collecting current in the charging loop; the switch module is arranged between the charging port and the battery and used for controlling the on-off of the voltage of the battery leakage loop, the switch module is in a conducting state during charging, and the switch module is in a disconnecting state during non-charging; the comparison module detects the current direction of the sampling module and controls the on-off of the switch module according to the current direction; and the voltage stabilizing module is respectively connected with the anode and the cathode of the charging port and supplies power for the comparison module, so that the voltage of the contact module which is opened frequently during charging and the voltage stability of the comparison module are ensured.
This swimming pool cleaning machine quick charge's structure is at the during operation, and the sampling module gathers the electric current in the charging circuit, and the direction of the electric current in the comparison module detection sampling module, according to the direction of electric current, the break-make of output control switch module, the switch module switches on when realizing charging, and the charger takes away the back, and switch module closes, and the back is put aside to the charger, and the charging circuit disconnection, voltage stabilizing module supplies power for the comparison module when charging, realizes the quick charge to the battery.
The sampling module is a sampling resistor Rs which is a commercially available product and is selected according to actual requirements, and no specific requirements are made here.
The structure also comprises a normally open contact module which is arranged between the charging port and the battery, the normally open contact module is respectively connected with the switch module and the sampling module in series to control the on-off of a loop between the charging port and the battery, specifically, the charging port, the switch module and the normally open contact module are sequentially connected with the battery, and the charging port, the sampling module and the normally open contact module are sequentially connected with the battery to form a loop between the charging port and the battery; the voltage stabilizing module is connected with the normally open contact module, the normally open contact module is in a normally open state, the voltage stabilizing module supplies power for the normally open contact module when charging is conducted, and the normally open contact module is closed, so that the charging loop is communicated.
The sampling module collects current in a charging loop, the comparison module detects the direction of the current in the sampling module, and the on-off of the switch module is output and controlled according to the direction of the current, so that the switch module is switched on during charging, and the switch module is closed and the normally open contact module is in a normally open state after the charger is removed; when charging, the normally open contact module is closed to realize the communication of the charging circuit, after the charger is moved away, the charging circuit is disconnected, and the voltage stabilizing module supplies power to the normally open contact module and the comparison module when charging, so that the rapid charging of the battery is realized.
The normally open contact module is normally open mechanical contact device K1, preferably a relay, and the number of normally open mechanical contact devices K1 is at least one, can be a plurality of, selects according to actual needs, and does not make specific requirements here.
In this embodiment, the number of the normally open mechanical contact device K1 is one, the normally open mechanical contact device K1 has two contacts, one contact is connected in series with the sampling resistor Rs and connected between the negative electrode of the charging port and the negative electrode of the battery, and the other contact is connected in series with the switch module and connected between the positive electrode of the charging port and the positive electrode of the battery.
The comparison module is connected with the voltage stabilization module, the voltage stabilization module supplies power to the comparison module, the comparison module comprises a comparator U1 and a first triode Q1, the reverse input end and the positive input end of the comparator U1 are respectively connected with two ends of the sampling module, the first triode Q1 receives an output signal of the comparator U1, the comparator U1 detects the current direction of the sampling module, positive voltage or negative voltage is output, on or off of the first triode Q1 is controlled, when the comparator U1 detects that the current direction on the sampling resistor Rs is the direction from a battery to a charging port, positive voltage is output, the first triode Q1 is controlled to be on, at the moment, the switch module is switched on, the charger charges the battery, when the comparator U1 detects that the current direction on the sampling resistor Rs is the direction from the charging port to the battery, negative voltage is output, the first triode Q1 is controlled to be off, and at the moment, the switch module is switched off, and charging is finished.
A first resistor R1 is connected between the comparator U1 and the first triode Q1, and a second resistor R2 is connected between the base electrode and the emitting electrode of the first triode Q1.
Specifically, the positive input end of comparator U1 is connected with the one end of sampling resistance Rs, the reverse input end of comparator U1 is connected with the negative pole of the mouth that charges, the output of comparator U1 is connected with first resistance R1, first resistance R1 is connected with first triode Q1's base, the one end of second resistance R2 is connected with first triode Q1's base, the other end of second resistance R2 is connected with first triode Q1's projecting pole, first triode Q1's collecting electrode is connected with switch module, first triode Q1's projecting pole and the negative pole of the mouth that charges are connected.
The comparator U1 is a commercially available product, and is selected according to actual requirements, which are not specifically required here.
The first triode Q1 is an NPN transistor, and is a commercially available product, and is selected according to actual requirements, which are not specifically required here.
The switch module comprises a transistor Q3, the transistor Q3 is provided with a parasitic diode, when the first triode Q1 is conducted, the positive electrode of the charging port forms a loop with the negative electrode of the charging port through the transistor Q3 and the first triode Q1, and the transistor Q3 is conducted to rapidly charge the battery; when the first triode Q1 is cut off, the transistor Q3 is turned off, and a circuit for leaking electricity to the outside of the battery is cut off.
A third resistor R3 is connected between the gate of the transistor Q3 and the collector of the first triode Q1, and a fourth resistor R4 is connected between the gate and the source of the transistor Q3.
Specifically, the collector of the first triode Q1 is connected to the gate of the transistor Q3 through the third resistor R3, the gate of the transistor Q3 is connected to the source of the transistor Q3 through the fourth resistor R4, the source of the transistor Q3 is connected to one contact of the normally-open mechanical contact device K1, the drain of the transistor Q3 is connected to the positive electrode of the charging port, the positive electrode of the internal parasitic diode of the transistor Q3 is connected to the drain of the transistor Q3, and the negative electrode of the internal parasitic diode is connected to the source of the transistor Q3.
The transistor Q3 is a metal-oxide semiconductor field effect transistor, and preferably, the transistor Q3 is a PMOS transistor.
The voltage stabilizing module comprises a second triode Q2, a first diode D1, a fifth resistor R5 and a voltage stabilizing diode D2, the anode of the first diode D1 is connected with the anode of the charging port, the cathode of the first diode D1 is connected with the collector of the second triode Q2, the cathode of the first diode D1 is connected with the cathode of the voltage stabilizing diode D2 through the fifth resistor R5, the anode of the voltage stabilizing diode D2 is connected with the cathode of the charging port, the cathode of the voltage stabilizing diode D2 is connected with the base of the second triode Q2, the emitter of the second triode Q2 is connected with a normally open contact module, the anode of the voltage stabilizing diode D2 is connected with the normally open contact module, the voltage stabilizing module respectively supplies power for the coil of the normally open contact module, the contact of the charging port anode is ensured, the anode of the transistor Q3 is communicated with the battery, the cathode of the charging port is also ensured, the sampling resistor Rs is communicated with the cathode of the battery, and meanwhile, the voltage stabilizing module supplies power for the comparison module.
An emitting electrode of the second triode Q2 and a negative electrode of the charging port are respectively connected with the comparator U1 to supply power for the comparator U1, an emitting electrode of the second triode Q2 is connected with a positive side power pin of the comparator U1, and a negative electrode of the charging port is connected with a negative side power pin of the comparator U1.
The normally open contact module is connected with a second diode D3 in parallel, the anode of the second diode D3 is connected with the cathode of the charging port, and the cathode of the second diode D3 is connected with the emitting electrode of a second triode Q2.
The cleaning machine is under non-charging state, and mechanical contact device K1 keeps normally open state, and the disconnection of the contact of the mechanical contact device K1 between mouth and the battery that charges guarantees to be in uncharged state when the aquatic operation, has broken off the electrical connection who charges mouthful and internal battery to guaranteed that the swimming pool cleaning machine charges mouthful and can stop the electric leakage corrosion phenomenon completely when the aquatic operation, guaranteed the reliable operation of machine.
When the charger is correctly connected to the charging port, the positive pole of the charger forms a voltage stabilizing circuit through the first diode D1, the fifth resistor R5, the voltage stabilizing diode D2, the second triode Q2 and the negative pole of the charging port, the voltage stabilizing circuit supplies power to the coil of the mechanical contact device K1, the normally open mechanical contact of the mechanical contact device K1 is closed, the positive pole of the charging port, the transistor Q3 and the positive pole of the battery are communicated, the negative pole of the charging port and the sampling resistor Rs are communicated with the negative pole of the battery, and meanwhile, the voltage stabilizing circuit supplies power to the comparator U1. Initially, a charging current passes through a parasitic diode of the transistor Q3, a mechanical contact of the mechanical contact device K1, a battery anode, a battery cathode, another mechanical contact of the mechanical contact device K1, and a sampling resistor Rs to a cathode of the charging port, a forward voltage higher than an inverting terminal is input to a non-inverting terminal of the comparator U1, the comparator U1 operates in an open-loop comparison state to output a forward limiting voltage, the forward limiting voltage output controls the first triode Q1 to be in saturation conduction through the first resistor R1, the anode of the charging port forms a loop through the parasitic diode of the crystal, the fourth resistor R4, the third resistor R3, the first triode Q1, and the cathode of the charging port, (the third resistor R3 may be 0 ohm), a proper voltage division is formed at two ends of the fourth resistor R4, the charging port is applied to two ends of the transistor Q3 to achieve a conduction condition of the transistor Q3, so as to promote saturation of the transistor Q3, the conduction resistor Rds of the transistor Q3 reaches a minimum, and a large current can be charged quickly.
When the charger is moved away, the battery supplies power to the voltage stabilizing circuit, the comparator U1 and the mechanical contact device K1 through a mechanical contact of the mechanical contact device K1, the transistor Q3 and the sampling resistor Rs because the transistor Q3 is in a conducting state, but at the moment, the current passes through the positive electrode of the battery, a mechanical contact of the mechanical contact device K1, the transistor Q3, the positive electrode of a charging port, the voltage stabilizing circuit, the negative electrode of the charging port, the sampling resistor Rs, the other mechanical contact of the mechanical contact device K1 and the negative electrode of the battery, the current passing through the sampling resistor Rs is reversed, a negative voltage lower than the reverse end is input into the non-phase end of the comparator U1, the comparator U1 outputs a negative amplitude limiting voltage (0V voltage), the first triode Q1 is cut off, the grid and the source electrode circuit of the transistor Q3 are kept to be conducted are cut off, the fourth resistor R4 is connected between the grid and the source electrode of the transistor Q3 in parallel, the grid and the source electrode are guaranteed to be at the same potential, the transistor Q3 is cut off, the outward leakage circuit of the battery is cut off, the mechanical contact device K1 is automatically cut off, and the non-charging state is recovered, and the charging is finished.
By adopting the technical scheme, the quick charging structure of the swimming pool cleaning machine is arranged between a charging port and a battery, a sampling module is arranged in a charging loop and can collect current between the charging port and the battery, a comparison module is arranged and detects the current direction on a sampling resistor, and the on-off of a switch module between the charging port and the battery is controlled according to the current direction output, so that the switch module is switched on when charging is realized, and after a charger is moved away, the switch module is switched off, a normally-open mechanical contact device is switched off, and the charging is finished; the switch module adopts a metal-oxide semiconductor field effect transistor with low internal resistance, allows large current to pass through, and simultaneously avoids causing higher heating, thereby shortening the charging time, realizing quick charging and ensuring the running reliability of a machine; after the charger is moved away, the normally open mechanical contact device is disconnected, and the electrical connection between the charging port and the internal battery is disconnected, so that the phenomenon of electric leakage corrosion of the charging port of the swimming pool cleaning machine in water can be completely avoided, and the reliable operation of the machine is ensured.
The above detailed description of the embodiments of the present invention is only for the purpose of describing the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. The utility model provides a swimming pool cleaning machine quick charge's structure which characterized in that: connect between the mouth and the battery that charge of swimming pool cleaning machine, the structure includes:
the sampling module is connected between the charging port and the battery and is used for collecting current in a charging loop;
the switch module is connected between the charging port and the battery and used for controlling the voltage on-off of a battery leakage loop;
the comparison module detects the current direction of the sampling module to control the on-off of the switch module;
and the voltage stabilizing module is respectively connected with the anode and the cathode of the charging port and supplies power to the comparison module.
2. The pool cleaner quick charge structure of claim 1, wherein: the sampling module is a sampling resistor.
3. The structure for rapidly charging the swimming pool cleaner as recited in claim 1 or 2, wherein: the comparison module comprises a comparator and a first triode, wherein the reverse input end and the positive input end of the comparator are respectively connected with two ends of the sampling module, the first triode receives an output signal of the comparator, the comparator detects the current direction of the sampling module, positive voltage or negative voltage is output, and the first triode is controlled to be switched on or switched off.
4. The pool cleaner quick charge structure of claim 3, wherein: a first resistor is connected between the comparator and the first triode, and a second resistor is connected between the base electrode and the emitting electrode of the first triode.
5. The structure for rapidly charging a swimming pool cleaner as recited in claim 3, wherein: the switch module comprises a transistor, the transistor is provided with a parasitic diode, when the first triode is conducted, the charging port complete machine forms a loop with the negative electrode of the charging port through the transistor and the first triode, and the transistor is conducted to rapidly charge the battery; when the first triode is cut off, the transistor is turned off, and a circuit of the battery for leaking electricity outwards is cut off; and a third resistor is connected between the grid electrode of the transistor and the collector electrode of the first triode, and a fourth resistor is connected between the grid electrode of the transistor and the source electrode of the transistor.
6. The quick charging structure of swimming pool cleaner according to claim 5, characterized in that: the transistor is a metal-oxide semiconductor field effect transistor.
7. The pool cleaner quick charge structure of claim 3, wherein: the structure also comprises a normally open contact module which is arranged between the charging port and the battery, and the normally open contact module is respectively connected with the switch module and the sampling module in series to control the on-off of a loop between the charging port and the battery;
the normally open contact module is connected with the voltage stabilizing module, and the voltage stabilizing module supplies power for the normally open contact module.
8. The pool cleaner quick charge structure of claim 7, wherein: the normally open contact module is a normally open mechanical contact device; the normally open mechanical contact device is a relay.
9. The pool cleaner quick charge structure of claim 7, wherein: the voltage stabilizing module comprises a second triode, a first diode, a fifth resistor and a voltage stabilizing diode, wherein the anode of the first diode is connected with the anode of the charging port, the cathode of the first diode is connected with the collector of the second triode, the cathode of the first diode is connected with the cathode of the voltage stabilizing diode through the fifth resistor, the anode of the voltage stabilizing diode is connected with the cathode of the charging port, the cathode of the voltage stabilizing diode is connected with the base of the second triode, the emitter of the second triode is connected with the normally open contact module, and the anode of the voltage stabilizing diode is connected with the normally open contact module; and the emitter of the second triode and the negative electrode of the charging port are respectively connected with the comparator to supply power for the comparator.
10. The pool cleaner quick charge structure of claim 9, wherein: the normally open contact module is connected with a second diode in parallel, the anode of the second diode is connected with the cathode of the charging port, and the cathode of the second diode is connected with the emitting electrode of the second triode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221367842.7U CN217741343U (en) | 2022-06-02 | 2022-06-02 | Quick charging structure of swimming pool cleaning machine |
| PCT/CN2023/098164 WO2023232149A1 (en) | 2022-06-02 | 2023-06-02 | Charging method for underwater cleaning machine, charging structure and underwater cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221367842.7U CN217741343U (en) | 2022-06-02 | 2022-06-02 | Quick charging structure of swimming pool cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217741343U true CN217741343U (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221367842.7U Active CN217741343U (en) | 2022-06-02 | 2022-06-02 | Quick charging structure of swimming pool cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217741343U (en) |
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2022
- 2022-06-02 CN CN202221367842.7U patent/CN217741343U/en active Active
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