Power supply control circuit and cleaning equipment

Abstract

The utility model discloses a power supply control circuit and cleaning equipment, the power supply control circuit comprises a first power supply unit, a second power supply unit, a load unit and a control unit, and the load unit is electrically connected with the first power supply unit and the second power supply unit; the control unit is electrically connected with the first power supply unit and the second power supply unit, collects the electric quantity states of the first power supply unit and the second power supply unit, and adjusts the mode that the first power supply unit and / or the second power supply unit supplies power to the load unit according to the electric quantity states of the first power supply unit and the second power supply unit. According to the technical scheme of the utility model, the problems that the working voltage of the load in the circuit is unstable and the rated voltage cannot be maintained when the cleaning equipment is powered by two power supplies at the same time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a power supply control circuit and a cleaning equipment. Background Art

[0002] With the rapid development of cleaning equipment technology, more and more cleaning work in people's daily lives is handed over to cleaning equipment, and there are more and more types of cleaning equipment. Existing cleaning equipment is usually powered by a single power supply. This power supply method has the following shortcomings. When a function package is connected to the host of the cleaning equipment to give the corresponding function, the load of the function package will increase the power consumption rate of the power tool, thereby shortening the use time of the power tool. If a power supply is directly added to the function package, after the function package is connected to the cleaning equipment, the cleaning equipment is powered by two power supplies at the same time. Since the voltages of the two power supplies are usually inconsistent, the working voltage of the load in the circuit is unstable and cannot maintain the rated voltage, which causes the cleaning equipment to malfunction. Utility Model Content

[0003] The utility model provides a power supply control circuit and a cleaning device, aiming to solve the problem that the load working voltage in the circuit is unstable when the cleaning device is supplied with two power supplies at the same time.

[0004] To achieve the above purpose, the power supply control circuit proposed by the utility model includes:

[0005] a first power supply unit;

[0006] A second power supply unit;

[0007] a load unit, the load unit being electrically connected to the first power supply unit and the second power supply unit;

[0008] A control unit is electrically connected to the first power supply unit and the second power supply unit, wherein the control unit collects the power status of the first power supply unit and the second power supply unit, and adjusts the mode in which the first power supply unit and / or the second power supply unit supplies power to the load unit according to the power status of the first power supply unit and the second power supply unit.

[0009] In some embodiments, the first power supply unit includes a first power supply, the second power supply unit includes a second power supply, a first switch and a second switch, the positive electrode of the first power supply is electrically connected to the negative electrode of the second power supply via the load unit, the positive electrode of the second power supply is electrically connected to the negative electrode of the first power supply via the second switch, and the positive electrode and the negative electrode of the second power supply are connected via the first switch;

[0010] The control unit is electrically connected to the first switch and the second switch to control the on and off of the first switch and the second switch; the control unit is electrically connected to the first power supply and the second power supply to collect the power status of the first power supply and the second power supply.

[0011] In some embodiments, the power supply control circuit includes a power device unit, a first end of the power device unit is electrically connected to the positive electrode of the first power supply, and a second end of the power device unit is electrically connected to the negative electrode of the first power supply.

[0012] In some embodiments, the first power supply unit further includes a third switch, a fourth switch and a fifth switch, the first end of the power device unit is electrically connected to the positive electrode of the first power supply via the third switch, the fifth switch is connected between the second switch and the negative electrode of the first power supply, and the first end of the power device unit is also electrically connected to the negative electrode of the first power supply via the fourth switch and the fifth switch in sequence;

[0013] The control unit is electrically connected to the third switch, the fourth switch and the fifth switch, respectively, and controls the on and off of the third switch, the fourth switch and the fifth switch.

[0014] In some embodiments, the second power supply unit further includes a sixth switch, and the sixth switch is connected in parallel at both ends of the load unit; the control unit is electrically connected to the sixth switch to control the on and off of the sixth switch.

[0015] In some embodiments, the first power supply unit further includes a host switch, and the host switch is arranged between the positive electrode of the first power supply and the load unit.

[0016] In some embodiments, the control unit is also electrically connected to the load unit to collect the operating voltage or power of the load unit, and the control unit controls the duty cycle of alternating conduction of the first switch and the second switch according to the operating voltage or power of the load unit.

[0017] The utility model also provides a cleaning device, comprising the above-mentioned power supply control circuit.

[0018] In some embodiments, the cleaning device includes a host and a function package, and the function package is detachably installed on the host; the power supply control circuit includes a host circuit and a function package circuit, the host circuit includes the first power supply unit and the control unit, and the function package circuit includes the second power supply unit and the load unit.

[0019] In some embodiments, the host is provided with a first electrical interface, the function package is provided with a second electrical interface, the first electrical interface is adapted to be connected to the second electrical interface, and the host circuit and the function package circuit are connected through the first electrical interface and the second electrical interface to form the power supply control circuit.

[0020] The technical solution of the power supply control circuit of the utility model collects the power status of the first power supply unit and the second power supply unit through the control unit, and adjusts the power supply output mode of the first power supply unit and / or the second power supply unit accordingly according to the power status of the first power supply unit and the second power supply unit, so that the working voltage of the load unit remains stable to ensure the rated voltage of the load unit; in this way, the cleaning equipment using the power supply control circuit of this embodiment can ensure the stability of the working voltage of the load, avoiding malfunctions of the cleaning equipment caused by unstable load voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a circuit module diagram of the first embodiment of the power supply control circuit of the utility model;

[0022] Figure 2 This is a circuit module diagram of the second embodiment of the power supply control circuit of the utility model;

[0023] Figure 3 It is a circuit module diagram of the third embodiment of the power supply control circuit of the utility model;

[0024] Figure 4 This is a circuit module diagram of a fourth embodiment of the power supply control circuit of the utility model;

[0025] Figure 5 This is a circuit module diagram of the fifth embodiment of the power supply control circuit of the utility model;

[0026] Figure 6 It is a circuit module diagram of the sixth embodiment of the power supply control circuit of the utility model. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0030] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] At present, cleaning equipment (floor scrubbers, cleaning robots) can expand the corresponding functions of the cleaning equipment by connecting a function package to the host or adding a function package to the host. In order to reduce the impact of the load of the function package on the endurance of the cleaning equipment, a power supply can be added to the function package. However, after the power supply is added, the cleaning equipment is powered by two power supplies at the same time. Since the voltages of the two power supplies are usually inconsistent, the working voltage of the load in the function package will be unstable, causing the cleaning equipment to malfunction. To this end, the utility model proposes a power supply control circuit solution that can solve the above problems. The power supply control circuit of the utility model is mainly used for cleaning equipment such as floor scrubbers and cleaning robots. Of course, the power supply control circuit can also be applied to other types of electric equipment.

[0032] Reference Figure 1In this embodiment, the power supply control circuit includes a first power supply unit 10, a second power supply unit 20, a load unit 30 and a control unit 40; the load unit 30 is electrically connected to the first power supply unit 10 and the second power supply unit 20, and the load unit 30 can be powered by any one or both of the first power supply unit 10 and the second power supply unit 20; the control unit 40 is electrically connected to the first power supply unit 10 and the second power supply unit 20, and the control unit 40 collects the power status of the first power supply unit 10 and the second power supply unit 20, and adjusts the mode in which the first power supply unit 10 and / or the second power supply unit 20 supplies power to the load unit 30 according to the power status of the first power supply unit 10 and the second power supply unit 20. In this embodiment, the electrical connection between the control unit 40 and the first unit and the second unit can be connected through a wireless signal or through a wire, and the control unit 40 can be a control chip. The power status collected by the control unit 40 may include the remaining power, voltage level, etc.

[0033] In this embodiment, the control unit 40 may adjust the mode in which the first power supply unit 10 and / or the second power supply unit 20 supply power to the load unit 30, including: enabling the first power supply unit 10 to supply power to the load unit 30 alone, enabling the first power supply unit 10 and the second power supply unit 20 to supply power to the load unit 30 together, enabling the second power supply unit 20 to supply power to the load unit 30 alone, and adjusting the power supply output power of the first power supply unit 10 and / or the second power supply unit 20 (e.g., adjusting the power supply output power by adjusting the duty cycle of the output time of the power supply unit).

[0034] When the power supply control circuit of this embodiment is applied to a cleaning device, one of the first power supply unit 10 and the second power supply unit 20 may be a power supply unit of a host, and the other may be a power supply unit of a function package, and the control unit 40 may be arranged in the host or the function package; the cleaning device collects the power status of the two power supply units (the first power supply unit 10 and the second power supply unit 20) through the control unit 40 to realize status monitoring of the two power supply units, and adjusts the mode in which the first power supply unit 10 and the second power supply unit 20 supply power to the load unit 30 according to the current power status of the two power supply units, so that the load unit 30 can be controlled to maintain a stable working voltage, thereby solving the problem that when two power supplies are supplied simultaneously to the cleaning device, the load working voltage is unstable, the rated voltage cannot be maintained, and failure is prone to occur.

[0035] The technical solution of the power supply control circuit of the present embodiment collects the power status of the first power supply unit 10 and the second power supply unit 20 through the control unit 40, so as to adjust the power supply output mode of the first power supply unit 10 and / or the second power supply unit 20 accordingly according to the power status of the first power supply unit 10 and the second power supply unit 20, so as to keep the working voltage of the load unit 30 stable; in this way, the cleaning equipment using the power supply control circuit of the present embodiment can ensure the stability of the working voltage of the load, and avoid malfunction of the cleaning equipment due to unstable load voltage.

[0036] Combination Figure 1 And refer to Figure 2 In this embodiment, the first power supply unit 10 includes a first power supply 11, and the second power supply unit 20 includes a second power supply 21, a first switch 22, and a second switch 23; the positive electrode of the first power supply 11 is electrically connected to the negative electrode of the second power supply 21 through the load unit 30, the positive electrode of the second power supply 21 is electrically connected to the negative electrode of the first power supply 11 through the second switch 23, and the positive electrode and the negative electrode of the second power supply 21 are connected through the first switch 22. Among them, the control unit 40 is electrically connected to the first switch 22 and the second switch 23, and the control unit 40 controls the on and off (on and off) of the first switch 22 and the second switch 23; the control unit 40 is electrically connected to the first power supply 11 and the second power supply 21 to collect the power state of the first power supply 11 and the second power supply 21, and the control unit 40 can be a wireless signal to connect the first power supply 11 and the second power supply 21, or it can be a wire to electrically connect the first power supply 11 and the second power supply 21. In this embodiment, the first switch 22 and the second switch 23 can be switch tubes (such as MOS tubes, triodes, etc.), or they can be switch chips or other switch devices or switch circuit units.

[0037] In this embodiment, when the control unit 40 controls the first switch 22 to be turned on and the second switch 23 to be turned off, the first power supply 11 alone supplies power to the load unit 30; when the control unit 40 controls the first switch 22 to be turned off and the second switch 23 to be turned on, the first power supply 11 and the second power supply 21 are connected in series to supply power to the load unit 30. For example, the rated voltage of the load unit 30 is bV (for example, 5V, 12V, 24V). When the control unit 40 determines through acquisition that the voltage of the first power supply 11 is greater than or equal to bV, the control unit 40 controls the first switch 22 to be turned on and the second switch 23 to be turned off, so that the first power supply 11 can supply power to the load unit 30 and the load unit 30 can operate at the rated voltage; when the control unit 40 determines through acquisition that the voltage of the first power supply 11 is less than bV and the second power supply 21 still has power, the control unit 40 determines that the first power supply 11 is insufficient to allow the load unit 30 to operate at the rated voltage. At this time, the control unit 40 controls the first switch 22 to be turned off and the second switch 23 to be turned on, so that the first power supply 11 and the second power supply 21 are connected in series to supply power to the load unit 30, thereby ensuring that the rated voltage is provided to the load unit 30. When the first power supply 11 and the second power supply 21 are connected in series to supply power to the load unit 30, the control unit 40 can control the first switch 22 and the second switch 23 to be alternately turned on according to the current voltages of the first power supply 11 and the second power supply 21, and control the duty cycle of the conduction time of the second switch 23, so that the load unit 30 operates close to the rated power.

[0038] Reference Figure 3 In this embodiment, the power supply control circuit further includes a power device unit 50, a first end 51 of the power device unit 50 is electrically connected to the positive electrode of the first power supply 11, and a second end 52 of the power device unit 50 is electrically connected to the negative electrode of the first power supply 11. When the power supply control circuit of this embodiment is applied to a cleaning device, the power device unit 50 can be a load of the host. After the host is started, the first power supply 11 starts to consume power through the power device unit 50; when the control unit 40 controls the first switch 22 to be turned on and the second switch 23 to be turned off (such as the control unit 40 determines that the control operation is performed when the voltage of the first power supply 11 is greater than or equal to the rated voltage bV of the load unit 30), the first power supply 11 supplies power to the load unit 30 and the power device unit 50 separately; when the control unit 40 controls the first switch 22 to be turned off and the second switch 23 to be turned on (such as the control unit 40 determines that the control operation is performed when the voltage of the first power supply 11 is less than bV), the first power supply 11 and the second power supply 21 are connected in series to supply power to the load unit 30.

[0039] Reference Figure 4In this embodiment, the first power supply unit 10 further includes a third switch 12, a fourth switch 13 and a fifth switch 14, the first end 51 of the power device unit 50 is electrically connected to the positive electrode of the first power supply 11 via the third switch 12, the fifth switch 14 is connected between the second switch 23 and the negative electrode of the first power supply 11, and the first end 51 of the power device unit 50 is also electrically connected to the negative electrode of the first power supply 11 via the fourth switch 13 and the fifth switch 14 in sequence; wherein the control unit 40 is electrically connected to the third switch 12, the fourth switch 13 and the fifth switch 14 respectively, and the control unit 40 controls the on and off of the third switch 12, the fourth switch 13 and the fifth switch 14. In this embodiment, the third switch 12, the fourth switch 13 and the fifth switch 14 can be switch tubes (such as MOS tubes, triodes, etc.), or can be switch chips or other switch devices or switch circuit units.

[0040] In this embodiment, when the control unit 40 controls the first switch 22, the third switch 12 and the fifth switch 14 to be turned on, and the second switch 23 and the fourth switch 13 are turned off, the first power supply 11 supplies power to the load unit 30 and the power device unit 50; when the control unit 40 controls the second switch 23, the third switch 12 and the fifth switch 14 to be turned on, and the first switch 22 and the fourth switch 13 are turned off, the first power supply 11 and the second power supply 21 are connected in series to supply power to the load unit 30; when the control unit 40 controls the third switch 12 to be turned on, and all other switches are turned off, the first power supply 11 supplies power to the power device unit 50 alone. By providing the power supply control circuit with more working mode switching controls, various working conditions in actual use of the cleaning equipment can be met.

[0041] For example, when the control unit 40 determines through acquisition that the voltage of the first power supply 11 is greater than or equal to the rated voltage bV of the load unit 30, the control unit 40 controls the first switch 22, the third switch 12 and the fifth switch 14 to be turned on, and controls the second switch 23 and the fourth switch 13 to be turned off, so that the first power supply 11 supplies power to the load unit 30 and the power device unit 50, and the load unit 30 can operate at the rated voltage; when the control unit 40 determines through acquisition that the voltage of the first power supply 11 is less than bV and the second power supply 21 still has power, the control unit 40 determines that the first power supply 11 is insufficient for the load unit 30 to operate at the rated voltage. At this time, the control unit 40 controls the second switch 23, the third switch 12 and the fifth switch 14 to be turned on, and controls the first switch 22 and the fourth switch 13 to be turned off. 13 is disconnected, and the first power supply 11 and the second power supply 21 are connected in series to supply power to the load unit 30, thereby ensuring that the rated voltage is provided to the load unit 30, and the control unit 40 can control the on-off duty cycle of the second switch 23 to make the power of the load unit 30 close to the rated power to work; when the control unit 40 determines through collection that the power consumption of the second power supply 21 is completed, the control unit 40 controls the third switch 12 to be turned on, and controls all other switches to be disconnected, and the first power supply 11 supplies power to the power device unit 50 alone; when the control unit 40 determines through collection that the power consumption of the first power supply 11 is completed (such as the power consumption of the main power supply of the cleaning device is completed), the control unit 40 can control all switches to be disconnected, the entire circuit stops working, and the cleaning device is shut down.

[0042] Reference Figure 5 In this embodiment, the second power supply unit 20 further includes a sixth switch 24, which is connected in parallel to both ends of the load unit 30; the control unit 40 is electrically connected to the sixth switch 24 to control the on and off of the sixth switch 24. Figure 4 On the basis of the embodiment, a sixth switch 24 is added, so that the control unit 40 can control the first switch 22, the third switch 12 and the fifth switch 14 to be disconnected, and control the second switch 23, the fourth switch 13 and the sixth switch 24 to be closed, so that the first power supply 11 and the second power supply 21 only supply power to the power device unit 50. When the load unit 30 is not needed to work, the power supply mode can be switched to work, so that the load unit 30 does not consume power, thereby improving the battery life.

[0043] Reference Figure 4 and Figure 5In some embodiments, the first power supply unit 10 further includes a host switch 15, which is disposed between the positive electrode of the first power supply 11 and the load unit 30. The host switch 15 is used to control whether the entire power supply control circuit works or not. When the power supply control circuit is applied to a cleaning device, the host switch 15 can be used to control whether the cleaning device is started or not. When the host switch 15 is turned on, the cleaning device is turned on and started, and when the host switch 15 is turned off, the cleaning device is turned off.

[0044] Reference Figure 6 In some embodiments, the control unit 40 is also electrically connected to the load unit 30 to collect the working voltage or power of the load unit 30. The control unit 40 controls the duty ratio of the first switch 22 and the second switch 23 to be alternately turned on according to the working voltage or power of the load unit 30. In this embodiment, the control unit 40 monitors the working state of the load unit 30 by collecting the working voltage or power of the load unit 30 in real time, and then controls the duty ratio of the first switch 22 and the second switch 23 to be alternately turned on, so as to more accurately ensure that the load unit 30 is kept working at a state close to the rated power.

[0045] In the above embodiment, the power supply control circuit can be divided into two detachable parts to be applied to two components that are detachably installed and connected (the two components are, for example, a main unit and a functional package of a cleaning device), wherein the first part includes a first power supply unit 10, a control unit 40 and a power device unit 50, and the second part includes a second power supply unit 20 and a load unit 30. For example, the first part is arranged on the main unit of the cleaning device, and the second part is arranged on the functional package. The first part and the second part can be connected to each other through an adaptive electrical interface.

[0046] The utility model also proposes a cleaning device, including a power supply control circuit. The specific structure of the power supply control circuit refers to the above-mentioned embodiment. Since the cleaning device adopts all the technical solutions of all the embodiments of the above-mentioned power supply control circuit, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0047] In some embodiments, the cleaning device includes a host and a function package, and the function package is detachably mounted on the host; the power supply control circuit includes a host circuit and a function package circuit, the host circuit is a circuit circuit part arranged on the host, and the function package circuit is a circuit circuit part arranged on the function package, wherein the host circuit includes a first power supply unit 10 and a control unit 40 of the power supply control circuit, and the function package circuit includes a second power supply unit 20 and a load unit 30 of the power supply control circuit. In some embodiments, the host circuit may further include a power device unit 50 of the power supply control circuit.

[0048] In some embodiments, the host is provided with a first electrical interface, the function package is provided with a second electrical interface, the first electrical interface and the second electrical interface are adapted and connected, the host circuit and the function package circuit are connected through the first electrical interface and the second electrical interface to form a power supply control circuit, the first electrical interface and the second electrical interface respectively include a plurality of contacts, and the electrical connection between the host circuit and the connection ends of the function package circuit is achieved through the corresponding contact of each contact. Among them, the first electrical interface and the second electrical interface can be respectively adapted to the male connector and the female connector, so that the function package can be quickly disassembled and assembled by plugging and connecting.

[0049] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A power supply control circuit, characterized in that: include: a first power supply unit; A second power supply unit; a load unit, the load unit being electrically connected to the first power supply unit and the second power supply unit; A control unit is electrically connected to the first power supply unit and the second power supply unit, wherein the control unit collects the power status of the first power supply unit and the second power supply unit, and adjusts the mode in which the first power supply unit and / or the second power supply unit supplies power to the load unit according to the power status of the first power supply unit and the second power supply unit.

2. The power supply control circuit according to claim 1, characterized in that: The first power supply unit includes a first power supply, the second power supply unit includes a second power supply, a first switch and a second switch, the positive electrode of the first power supply is electrically connected to the negative electrode of the second power supply via the load unit, the positive electrode of the second power supply is electrically connected to the negative electrode of the first power supply via the second switch, and the positive electrode and the negative electrode of the second power supply are connected via the first switch; The control unit is electrically connected to the first switch and the second switch, and controls the on and off of the first switch and the second switch; The control unit is electrically connected to the first power supply and the second power supply to collect power status of the first power supply and the second power supply.

3. The power supply control circuit according to claim 2, characterized in that: The power supply control circuit includes a power device unit, a first end of the power device unit is electrically connected to the positive electrode of the first power source, and a second end of the power device unit is electrically connected to the negative electrode of the first power source.

4. The power supply control circuit according to claim 3, characterized in that: The first power supply unit further includes a third switch, a fourth switch and a fifth switch, the first end of the power device unit is electrically connected to the positive electrode of the first power supply via the third switch, the fifth switch is connected between the second switch and the negative electrode of the first power supply, and the first end of the power device unit is also electrically connected to the negative electrode of the first power supply via the fourth switch and the fifth switch in sequence; The control unit is electrically connected to the third switch, the fourth switch and the fifth switch, respectively, and controls the on and off of the third switch, the fourth switch and the fifth switch.

5. The power supply control circuit according to claim 4, characterized in that: The second power supply unit further includes a sixth switch, which is connected in parallel to both ends of the load unit; the control unit is electrically connected to the sixth switch to control the on and off of the sixth switch.

6. The power supply control circuit according to claim 2, characterized in that: The first power supply unit further includes a host switch, and the host switch is arranged between the positive electrode of the first power supply and the load unit.

7. The power supply control circuit according to any one of claims 2 to 6, characterized in that: The control unit is also electrically connected to the load unit to collect the operating voltage or power of the load unit. The control unit controls the duty cycle of the alternating conduction of the first switch and the second switch according to the operating voltage or power of the load unit.

8. A cleaning device, characterized in that: The invention comprises the power supply control circuit according to any one of claims 1 to 7.

9. The cleaning device according to claim 8, characterized in that The cleaning device includes a main body and a function package, and the function package is detachably installed on the main body; the power supply control circuit includes a main body loop and a function package loop, the main body loop includes the first power supply unit and the control unit, and the function package loop includes the second power supply unit and the load unit.

10. The cleaning device according to claim 9, characterized in that The host is provided with a first electrical interface, and the function package is provided with a second electrical interface. The first electrical interface is adapted to be connected to the second electrical interface. The host circuit and the function package circuit are connected through the first electrical interface and the second electrical interface to form the power supply control circuit.

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