Charging device and charging assembly

Abstract

The utility model relates to a charging device and a charging assembly, and the charging device comprises a power supply interface, a first power supply interface circuit, a first switching circuit, a control chip, a charging management chip, a second switching circuit, a third switching circuit, a first magnetic connection end, a second magnetic connection end, and a magnetic charging interface. The first power supply interface circuit is electrically connected with the power supply interface, the first switching circuit is electrically connected with the first power supply interface circuit, the control chip is electrically connected with the first switching circuit, the second switching circuit and the third switching circuit are electrically connected with the control chip, and the first magnetic connection end is electrically connected with the control chip and the second switching circuit. The second magnetic connection end is electrically connected with the control chip and the third switching circuit, the charging management chip is electrically connected with the first switching circuit, the second switching circuit and the third switching circuit, and the magnetic charging interface is electrically connected with the charging management chip and is used for being electrically connected with external electric equipment.

Description

Technical Field

[0001] The present application belongs to the field of charging technology and relates to a charging device and a charging component. Background Art

[0002] Common charging devices use a power adapter as a power input. Most existing charging devices have one power adapter corresponding to one charging device. Multiple charging devices require multiple power adapters. When multiple wireless devices need to be charged at the same time, multiple power adapters are required, which results in a tangled mess of wires and takes up a lot of space. Utility Model Content

[0003] The purpose of this application is to provide a charging device and a charging assembly to address the deficiencies in the prior art, so as to improve the technical problems existing in the above-mentioned prior art.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In the first aspect, an embodiment of the present application provides a charging device, comprising: a power supply interface, a first power supply interface circuit, a first switch circuit, a control chip, a charging management chip, a second switch circuit, a third switch circuit, a first magnetic connection end, a second magnetic connection end and a magnetic charging interface, wherein the power supply interface is used to connect a power adapter, the first power supply interface circuit is electrically connected to the power supply interface, the first switch circuit is electrically connected to the first power supply interface circuit, the control chip is electrically connected to the first switch circuit, the second switch circuit and the third switch circuit are electrically connected to the control chip, the first magnetic connection end is electrically connected to the control chip and the second switch circuit, the second magnetic connection end is electrically connected to the control chip and the third switch circuit, the charging management chip is electrically connected to the first switch circuit, the second switch circuit and the third switch circuit, the magnetic charging interface is electrically connected to the charging management chip, and the magnetic charging interface is used to be electrically connected to an external electrical device.

[0006] Furthermore, the first switching circuit includes a first MOS tube, a second MOS tube and a first triode, the first end of the first MOS tube is electrically connected to the output end of the first power supply interface circuit, the second end of the first MOS tube is electrically connected to the first end of the second MOS tube, the control end of the first MOS tube is electrically connected to the collector of the first triode, the second end of the second MOS tube is electrically connected to the power input end of the charging management chip, the emitter of the first triode is grounded, and the base of the first triode is electrically connected to the first enable end of the control chip.

[0007] Furthermore, the second switching circuit includes a first diode, a third MOS tube, a fourth MOS tube and a second triode, the input end of the first diode is electrically connected to the power supply end of the control chip, the output end of the first diode is electrically connected to the first end of the fourth MOS tube, the first end of the fourth MOS tube is electrically connected to the first magnetic connection end, the second end of the fourth MOS tube is electrically connected to the first end of the third MOS tube, the control end of the fourth MOS tube is electrically connected to the collector of the second triode, the second end of the third MOS tube is electrically connected to the power supply input end of the charging management chip, the control end of the third MOS tube is electrically connected to the collector of the second triode, the emitter of the second triode is grounded, and the base of the second triode is electrically connected to the second enable end of the control chip.

[0008] Furthermore, the second switching circuit includes a second diode, a fifth MOS tube, a sixth MOS tube and a third triode, the input end of the second diode is electrically connected to the power end of the control chip, the output end of the second diode is electrically connected to the first end of the sixth MOS tube, the first end of the sixth MOS tube is electrically connected to the second magnetic connection end, the second end of the sixth MOS tube is electrically connected to the first end of the fifth MOS tube, the control end of the sixth MOS tube is electrically connected to the collector of the third triode, the second end of the fifth MOS tube is electrically connected to the power input end of the charging management chip, the control end of the fifth MOS tube is electrically connected to the collector of the third triode, the emitter of the third triode is grounded, and the base of the third triode is electrically connected to the third enable end of the control chip.

[0009] Furthermore, the charging device also includes a second power supply interface circuit, one end of the second power supply interface circuit is electrically connected to the power supply interface, and the other end of the second power supply interface circuit is electrically connected to the power supply end of the control chip.

[0010] Furthermore, the charging device also includes a first detection circuit, one end of the first detection circuit is electrically connected to the power supply interface, and the other end of the first detection circuit is electrically connected to the first detection end of the control chip.

[0011] Furthermore, the charging device also includes a second detection circuit, one end of the second detection circuit is electrically connected to the charging interface, and the other end of the second detection circuit is electrically connected to the second detection end of the control chip.

[0012] Furthermore, the charging device also includes a charging status display circuit, and the charging status display circuit is electrically connected to the control chip.

[0013] Furthermore, the first magnetic connection end is electrically connected to a first signal receiving end and a first signal sending end of the control chip, and the second magnetic connection end is electrically connected to a second signal receiving end and a second signal sending end of the control chip.

[0014] In a second aspect, an embodiment of the present application further provides a charging component, which includes at least two charging devices, wherein a first magnetic connection end of one of the charging devices is electrically connected to a second magnetic connection end of another of the charging devices.

[0015] Beneficial effects of this application:

[0016] The present application provides a charging device and a charging component, by setting the control chip to be electrically connected to the first switch circuit, the second switch circuit and the third switch circuit to be electrically connected to the control chip, the first magnetic connection end to be electrically connected to the control chip and the second switch circuit, the second magnetic connection end to be electrically connected to the control chip and the third switch circuit, and the charging management chip to be electrically connected to the first switch circuit, the second switch circuit and the third switch circuit; when charging multiple electrical devices, only one power adapter needs to be electrically connected to one charging device, and then the remaining charging devices are electrically connected to the second magnetic connection end through the first magnetic connection end, so that multiple wireless charging devices can be spliced, ensuring that users can choose to increase or decrease the number of spliced ​​charging devices according to actual needs, avoiding the problem of tangled connecting wires and large space occupied due to the use of multiple power adapters, and improving the convenience of users in using charging devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the connection between the power supply interface, the first power supply interface circuit, and the first switch circuit of the present application;

[0018] Figure 2 is a schematic diagram of the connection between the second switch circuit of the present application and the first magnetic connection end;

[0019] Figure 3 is a schematic diagram of the third switch circuit and the second magnetic connection end of the present application;

[0020] Figure 4 is a schematic diagram of the connection between the control chip of the present application and the second power supply interface circuit;

[0021] Figure 5 It is a schematic diagram of the connection between the LED driving circuit and the LED light-emitting device of the present application;

[0022] Figure 6 is a schematic diagram of a first detection circuit of the present application;

[0023] Figure 7 is a schematic diagram of a second detection circuit of the present application;

[0024] Figure 8 It is a schematic diagram of the charging status display circuit of the present application. DETAILED DESCRIPTION

[0025] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0026] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] Common charging devices use a power adapter as a power input. Most existing charging devices have one power adapter corresponding to one charging device. Multiple charging devices require multiple power adapters. When multiple wireless devices need to be charged at the same time, multiple power adapters are required, which results in a tangled mess of wires and takes up a lot of space.

[0030] refer to Figure 1-Figure 8, an embodiment of the present application provides a charging component, the charging component includes at least two charging devices, two adjacent charging devices are detachably connected by magnetic connection, the charging device includes: a power supply interface 5V_TYPE-C, a first power supply interface 5V_TYPE-C circuit, a first switch circuit, a control chip U1, a charging management chip U2, a second switch circuit, a third switch circuit, a first magnetic connection terminal 5V_OUT_L, a second magnetic connection terminal 5V_OUT_R and a magnetic charging interface, the power supply interface 5V_TYPE-C is used to connect a power adapter, the first power supply interface 5V_TYPE-C circuit and the power supply interface 5V _TYPE-C is electrically connected, the first switch circuit is electrically connected to the first power supply interface 5V_TYPE-C circuit, the control chip U1 is electrically connected to the first switch circuit, the second switch circuit and the third switch circuit are electrically connected to the control chip U1, the first magnetic connection terminal 5V_OUT_L is electrically connected to the control chip U1 and the second switch circuit, the second magnetic connection terminal 5V_OUT_R is electrically connected to the control chip U1 and the third switch circuit, the charging management chip U2 is electrically connected to the first switch circuit, the second switch circuit and the third switch circuit, the magnetic charging interface is electrically connected to the charging management chip U2, and the magnetic charging interface is used to be electrically connected to external electrical equipment.

[0031] By setting the control chip U1 to be electrically connected to the first switch circuit, the second switch circuit and the third switch circuit to be electrically connected to the control chip U1, the first magnetic connection terminal 5V_OUT_L to be electrically connected to the control chip U1 and the second switch circuit, the second magnetic connection terminal 5V_OUT_R to be electrically connected to the control chip U1 and the third switch circuit, and the charging management chip U2 to be electrically connected to the first switch circuit, the second switch circuit and the third switch circuit; when charging multiple electrical devices, only one power adapter needs to be electrically connected to one charging device, and then the remaining charging devices are electrically connected to the second magnetic connection terminal 5V_OUT_R through the first magnetic connection terminal 5V_OUT_L, 5V_OUT_R, so that multiple wireless charging devices can be spliced, ensuring that users can choose to increase or decrease the number of spliced ​​charging devices according to actual needs, avoiding the problem of tangled connecting wires and large space occupied due to the use of multiple power adapters, thereby improving the convenience of users in using charging devices.

[0032] In this embodiment, the external power-consuming device is a mobile lighting device with a lithium battery.

[0033] In this embodiment, the first switching circuit includes a first MOS tube Q1, a second MOS tube Q2 and a first triode Q7. The first end of the first MOS tube Q1 is electrically connected to the output end of the first power supply interface 5V_TYPE-C circuit, the second end of the first MOS tube Q1 is electrically connected to the first end of the second MOS tube Q2, the control end of the first MOS tube Q1 is electrically connected to the collector of the first triode Q7, the second end of the second MOS tube Q2 is electrically connected to the power input end of the charging management chip U2, the emitter of the first triode Q7 is grounded, and the base of the first triode Q7 is electrically connected to the first enable end P1.0 of the control chip U1.

[0034] In this embodiment, the second switch circuit includes a first diode D1, a third MOS transistor Q3, a fourth MOS transistor Q4 and a second triode Q8. The input end of the first diode D1 is electrically connected to the power supply end of the control chip U1, the output end of the first diode D1 is electrically connected to the first end of the fourth MOS transistor, the first end of the fourth MOS transistor Q4 is electrically connected to the first magnetic connection end 5V_OUT_L, the second end of the fourth MOS transistor Q4 is electrically connected to the first end of the third MOS transistor Q3, the control end of the fourth MOS transistor Q4 is electrically connected to the collector of the second triode Q8, the second end of the third MOS transistor Q3 is electrically connected to the power supply input end of the charging management chip U2, the control end of the third MOS transistor Q3 is electrically connected to the collector of the second triode Q8, the emitter of the second triode Q8 is grounded, and the base of the second triode Q8 is electrically connected to the second enable end P2.6 of the control chip U1.

[0035] In this embodiment, the second switch circuit includes a second diode D2, a fifth MOS transistor Q5, a sixth MOS transistor Q6 and a third triode Q9, the input end of the second diode D2 is electrically connected to the power end of the control chip U1, the output end of the second diode D2 is electrically connected to the first end of the sixth MOS transistor Q6, the first end of the sixth MOS transistor Q6 is electrically connected to the second magnetic connection end 5V_OUT_R, the second end of the sixth MOS transistor Q6 is electrically connected to the first end of the fifth MOS transistor Q5, the control end of the sixth MOS transistor Q6 is electrically connected to the collector of the third triode, the second end of the fifth MOS transistor Q5 is electrically connected to the power input end of the charging management chip U2, the control end of the fifth MOS transistor Q5 is electrically connected to the collector of the third triode Q9, the emitter of the third triode Q9 is grounded, and the base of the third triode Q9 is electrically connected to the third enable end P0.5 of the control chip U1.

[0036] In this embodiment, the charging device further includes a second power supply interface 5V_TYPE-C circuit, one end of the second power supply interface 5V_TYPE-C circuit is electrically connected to the power supply interface 5V_TYPE-C, and the other end of the second power supply interface 5V_TYPE-C circuit is electrically connected to the power supply terminal VDD of the control chip U1. Specifically, the second power supply interface 5V_TYPE-C circuit includes a third diode D3, a fourth diode D4, a fifth diode D5 and a sixth diode D6, one end of the fourth diode D4 is electrically connected to the power supply interface 5V_TYPE-C, the other end of the fourth diode D4 is electrically connected to the power supply terminal VDD of the control chip U1, one end of the fifth diode D5 is electrically connected to the first magnetic connection end, the other end of the fifth diode D5 is electrically connected to the power supply terminal VDD of the control chip U1, one end of the sixth diode D6 is electrically connected to the second magnetic connection end, and the other end of the sixth diode D6 is electrically connected to the power supply terminal VDD of the control chip U1.

[0037] In this embodiment, the charging device also includes a first detection circuit, one end of the first detection circuit is electrically connected to the power supply interface 5V_TYPE-C, and the other end of the first detection circuit is electrically connected to the first detection terminal P0.0 of the control chip U1. Specifically, the first detection circuit includes a thirteenth resistor R13 and a sixteenth resistor R16, one end of the thirteenth resistor R13 is electrically connected to the power supply interface 5V_TYPE-C, the other end of the thirteenth resistor R13 is electrically connected to one end of the sixteenth resistor R16, the other end of the sixteenth resistor R16 is grounded, and the connected end of the thirteenth resistor R13 and the sixteenth resistor R16 is connected to the first detection terminal P0.0 of the control chip U1. By setting the first detection circuit, it is possible to detect whether the power adapter is connected to the charging device.

[0038] In this embodiment, the charging device also includes a second detection circuit, one end of the second detection circuit is electrically connected to the charging interface, and the other end of the second detection circuit is electrically connected to the second detection terminal P2.7 of the control chip U1. Specifically, the second detection circuit includes a twelfth resistor R12 and a fifteenth resistor R15, one end of the twelfth resistor R12 is electrically connected to the charging interface BAT+, the other end of the twelfth resistor R12 is electrically connected to one end of the fifteenth resistor R15, the other end of the fifteenth resistor R15 is grounded, and the connected end of the twelfth resistor R12 and the fifteenth resistor R15 is connected to the second detection terminal P2.7 of the control chip U1. By setting the second detection circuit, it is possible to detect whether the external electrical equipment is connected to the charging device.

[0039] In this embodiment, the charging device further includes a charging status display circuit, and the charging status display circuit is electrically connected to the control chip U1.

[0040] In this embodiment, the first magnetic connection terminal 5V_OUT_L is electrically connected to the first signal receiving terminal P1.5 and the first signal sending terminal P1.4 of the control chip U1, and the second magnetic connection terminal 5V_OUT_R is electrically connected to the second signal receiving terminal P2.1 and the second signal sending terminal P2.0 of the control chip U1.

[0041] Working principle:

[0042] When only one charging device is used, the power adapter is connected to the charging device, and the 5V voltage will power the control chip U1 through the fourth diode D4. The control chip U1 controls the fourth pin P1.0 to output a high level, so that the first transistor Q7 is turned on, so that the gates of the first MOS tube Q1 and the second MOS tube Q2 become low levels, and the first MOS tube Q1 and the second MOS tube Q2 are turned on, so that the 5V voltage is given to the power input terminal 5V_VBUS of the charging management chip U2, so that the power output terminal VBAT of the charging management chip U2 outputs the voltage to the external power device;

[0043] When there are two charging devices connected, that is, the second charging device is connected to the right side of the first charging device, the first charging device is electrically connected to the power adapter, and the second magnetic connection end of the first charging device is electrically connected to the first magnetic connection end of the second charging device. At this time, the voltage will pass through the second diode D2 and the sixth diode D6 to power the control chip U1. After the control chip U1 wakes up, it sends a specific frequency signal through pin No. 6 P1.4, pin No. 7 P1.5, pin No. 15 P2.1 and pin No. 16 P2.0. After receiving the signal from the first charging device, the second charging device sends a specific frequency signal through pin No. 16 P2.0 and pin No. 15 P2.1 to confirm the connection, and control the first charging device. Pin No. 7 P0.5 outputs a high level, so that the third transistor Q9 is turned on, and the gates of the fifth MOS tube Q5 and the sixth MOS tube Q6 become low level, and the fifth MOS tube Q5 and the sixth MOS tube Q6 are turned on. After receiving the signal, the second charging device confirms that the first charging device is powered, and controls the pin No. 12 P2.6 of the control chip U1 to output a high level, so that the second transistor Q8 is turned on, and the gates of the third MOS tube Q3 and the fourth MOS tube Q4 become low level, and the third MOS tube Q3 and the fourth MOS tube Q4 are turned on; the current passes through the fifth MOS tube Q5 and the sixth MOS tube Q6 of the first charging device and the third MOS tube Q3 and the fourth MOS tube Q4 of the second charging device, and supplies power to the charging management chip U2.

[0044] The embodiment described above is only one of the more preferred specific methods of the present application. Common changes and substitutions made by technicians in this field within the scope of the technical solution of the present application should be included in the protection scope of the present application.

Claims

1. A charging device, characterized in that: include: A power supply interface, a first power supply interface circuit, a first switch circuit, a control chip, a charging management chip, a second switch circuit, a third switch circuit, a first magnetic connection end, a second magnetic connection end and a magnetic charging interface, the power supply interface is used to connect a power adapter, the first power supply interface circuit is electrically connected to the power supply interface, the first switch circuit is electrically connected to the first power supply interface circuit, the control chip is electrically connected to the first switch circuit, the second switch circuit and the third switch circuit are electrically connected to the control chip, the first magnetic connection end is electrically connected to the control chip and the second switch circuit, the second magnetic connection end is electrically connected to the control chip and the third switch circuit, the charging management chip is electrically connected to the first switch circuit, the second switch circuit and the third switch circuit, the magnetic charging interface is electrically connected to the charging management chip, and the magnetic charging interface is used to be electrically connected to an external electrical device.

2. The charging device according to claim 1, characterized in that: The first switch circuit includes a first MOS tube, a second MOS tube and a first triode, the first end of the first MOS tube is electrically connected to the output end of the first power supply interface circuit, the second end of the first MOS tube is electrically connected to the first end of the second MOS tube, the control end of the first MOS tube is electrically connected to the collector of the first triode, the second end of the second MOS tube is electrically connected to the power input end of the charging management chip, the emitter of the first triode is grounded, and the base of the first triode is electrically connected to the first enable end of the control chip.

3. The charging device according to claim 2, characterized in that: The second switch circuit includes a first diode, a third MOS transistor, a fourth MOS transistor and a second triode, the input end of the first diode is electrically connected to the power end of the control chip, the output end of the first diode is electrically connected to the first end of the fourth MOS transistor, the first end of the fourth MOS transistor is electrically connected to the first magnetic connection end, the second end of the fourth MOS transistor is electrically connected to the first end of the third MOS transistor, the control end of the fourth MOS transistor is electrically connected to the collector of the second triode, the second end of the third MOS transistor is electrically connected to the power input end of the charging management chip, the control end of the third MOS transistor is electrically connected to the collector of the second triode, the emitter of the second triode is grounded, and the base of the second triode is electrically connected to the second enable end of the control chip.

4. The charging device according to claim 3, characterized in that: The second switch circuit includes a second diode, a fifth MOS transistor, a sixth MOS transistor and a third triode, the input end of the second diode is electrically connected to the power end of the control chip, the output end of the second diode is electrically connected to the first end of the sixth MOS transistor, the first end of the sixth MOS transistor is electrically connected to the second magnetic connection end, the second end of the sixth MOS transistor is electrically connected to the first end of the fifth MOS transistor, the control end of the sixth MOS transistor is electrically connected to the collector of the third triode, the second end of the fifth MOS transistor is electrically connected to the power input end of the charging management chip, the control end of the fifth MOS transistor is electrically connected to the collector of the third triode, the emitter of the third triode is grounded, and the base of the third triode is electrically connected to the third enable end of the control chip.

5. The charging device according to claim 4, characterized in that: The charging device further includes a second power supply interface circuit, one end of the second power supply interface circuit is electrically connected to the power supply interface, and the other end of the second power supply interface circuit is electrically connected to the power supply end of the control chip.

6. The charging device according to claim 5, characterized in that: The charging device further includes a first detection circuit, one end of the first detection circuit is electrically connected to the power supply interface, and the other end of the first detection circuit is electrically connected to a first detection end of the control chip.

7. The charging device according to claim 1, characterized in that: The charging device further includes a second detection circuit, one end of the second detection circuit is electrically connected to the charging interface, and the other end of the second detection circuit is electrically connected to the second detection end of the control chip.

8. The charging device according to claim 1, characterized in that: The charging device further comprises a charging status display circuit, and the charging status display circuit is electrically connected to the control chip.

9. The charging device according to claim 1, characterized in that: The first magnetic connection end is electrically connected to the first signal receiving end and the first signal sending end of the control chip, and the second magnetic connection end is electrically connected to the second signal receiving end and the second signal sending end of the control chip.

10. A charging assembly, comprising at least two charging devices according to any one of claims 1 to 9, wherein a first magnetic connection end of one of the charging devices is electrically connected to a second magnetic connection end of the other charging device.

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