Intelligent control power supply with multiplexed output

Abstract

The utility model discloses an intelligent control power supply with multiplexed output. The intelligent control power supply comprises a mounting plate; the outer shell is fixedly arranged on the mounting plate, and a hollow cavity is formed by the outer shell and the mounting plate; the circuit board and the battery assembly are respectively and fixedly arranged in the hollow cavity; the plurality of electric connection interfaces are respectively arranged on the circuit board; the circuit board is provided with an AC / DC conversion circuit, a current sampling and comparison circuit and a voltage conversion circuit. When the current sampling and comparison circuit detects that the output current of the battery assembly is larger than a preset value, the current sampling and comparison circuit controls the voltage conversion circuit to supply power to external equipment. According to the intelligent lock, the battery assembly is used for supplying power to the intelligent lock, meanwhile, a plurality of electric connection interfaces are arranged for multi-path output operation, and the problem that a direct power supply of an existing intelligent lock is small in output current and cannot supply power to other external equipment is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply technical field especially relates to a multi -output intelligent control power supply. BACKGROUND

[0002] With the continuous development of science and technology, intelligentization has gradually penetrated into people's life, and the home industry also slowly develops towards intelligentization, and the ordinary door lock can not meet people's requirements in safety performance, and the intelligent lock has great advantages in safety performance and user experience, the intelligent lock has great development prospect and will occupy an important position in the field of family application.

[0003] In the prior art, the intelligent lock generally needs a direct current power supply for power supply operation, and most direct current power supplies directly power the intelligent lock by converting alternating current into direct current. Due to the limitation of volume and cost, the current is difficult to exceed 5A, and the maximum current of the intelligent lock during operation can be more than 10A, so this direct supply technical solution is unreasonable. At the same time, some doors are not only equipped with intelligent locks, but also equipped with voice broadcast devices and atmosphere lamp strips, so multiple direct current power supplies are needed for power supply, which increases the installation cost and is not beautiful. Therefore, a multi-output intelligent control power supply is provided to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] One of the purposes of the utility model is to provide a multi-output intelligent control power supply to solve the problem of small output current of the direct power supply of the existing intelligent lock and the problem of inability to power other external devices.

[0005] The multi-output intelligent control power supply can be realized by the following technical solutions:

[0006] The multi-output intelligent control power supply is applied to the intelligent lock, which comprises a mounting plate, an outer shell fixedly arranged on the mounting plate and forming a hollow cavity with the mounting plate, a circuit board fixedly arranged in the hollow cavity, a battery assembly fixedly arranged in the hollow cavity, the battery assembly being electrically connected with the circuit board and the intelligent lock respectively, and a plurality of electrical connection interfaces arranged on the circuit board.

[0007] The circuit board is provided with an AC / DC conversion circuit and a current sampling and comparison circuit, both of which are electrically connected with the battery assembly, the AC / DC conversion circuit converts alternating current into direct current to charge the battery assembly, and the current sampling and comparison circuit collects the output current of the battery assembly in real time; the circuit board is further provided with a voltage conversion circuit, which is electrically connected with the current sampling and comparison circuit, the battery assembly and an external device, and the voltage conversion circuit converts the output voltage of the battery assembly; when the current sampling and comparison circuit detects that the output current of the battery assembly is greater than a preset value, the current sampling and comparison circuit controls the voltage conversion circuit to supply power to the external device.

[0008] In one of the embodiments, the smart control power supply with multiple output channels further comprises an inner cavity, a switch button and an indicator light; the inner cavity is fixedly arranged on the mounting plate and wrapped in the outer shell; the circuit board and the battery assembly are fixedly arranged in the inner cavity; the switch button and the indicator light are arranged on the circuit board and penetrate the inner cavity respectively.

[0009] In one of the embodiments, the mounting plate, the inner cavity and the outer shell are respectively provided with a first fixing hole, a second fixing hole and a third fixing hole at corresponding positions, the third fixing hole is provided with an internal thread, and a fastening screw is fixedly connected in sequence through the first fixing hole, the second fixing hole and the internal thread in the third fixing hole.

[0010] In one of the embodiments, the AC / DC conversion circuit converts 220V alternating current into 24V, 12V, 8.4V or 5V direct current to charge the battery assembly.

[0011] In one of the embodiments, the voltage conversion circuit converts the output voltage 8.4V of the battery assembly into 3.7V to supply power to the external device.

[0012] In one of the embodiments, the external device is a voice broadcast device and / or an atmosphere lamp strip.

[0013] In one of the embodiments, when the current sampling and comparison circuit collects the output current of the battery assembly greater than 20mA in real time, the MOS tube in the current sampling and comparison circuit is closed, so that the voltage conversion circuit supplies power to the external device.

[0014] In one of the embodiments, the outer shell is provided with a wiring hole, and a connecting wire is electrically connected with the corresponding electrical connection interface through the wiring hole.

[0015] In one of the embodiments, the electrical connection interface comprises an input electrical connection interface and an output electrical connection interface; 220V alternating current is electrically connected with the circuit board through the input electrical connection interface; the AC / DC conversion circuit converts 220V alternating current into direct current to charge the battery assembly, and the corresponding output electrical connection interface respectively supplies power to the smart lock and the external device.

[0016] In one of the embodiments, the battery assembly adopts a polymer lithium ion battery.

[0017] Compared with the prior art, the utility model discloses a kind of beneficial effects of intelligent control power supply with multiple output:

[0018] The utility model discloses a kind of intelligent control power supply with multiple output, which charges the battery assembly through AC / DC conversion circuit, and then supplies power to the smart lock through the battery assembly.The output current of the battery assembly is easily more than 15A by this design, effectively solving the problem of small output current of the direct power supply of the existing smart lock.Meanwhile, the output current of the battery assembly is detected in real time by current sampling and comparison circuit.When the output current of the battery assembly is greater than the preset value, the current sampling and comparison circuit controls the voltage conversion circuit to work, and then supplies power to multiple external devices through the corresponding output electrical connection interface, effectively solving the problem that the direct power supply of the existing smart lock cannot supply power to other external devices.Only when the smart lock is working, the external device will work synchronously, so as to realize intelligent control of the power supply, and to a certain extent, realize energy-saving operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] To more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can be obtained without creative labor.

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the utility model discloses a kind of intelligent control power supply with multiple output;

[0021] Figure 2 It is an explosion schematic diagram of the utility model discloses a kind of intelligent control power supply with multiple output, including inner cavity and shell;

[0022] Figure 3 It is Figure 2 The three-dimensional structure schematic diagram of the inner cavity shown in the figure;

[0023] Figure 4 It isFigure 2 A perspective structural schematic view of the outer shell body is shown in the figure;

[0024] Figure 5 is an electrical connection schematic diagram of the intelligent control power supply with multiple output, comprising an AC / DC conversion circuit, a current sampling and comparison circuit and a voltage conversion circuit;

[0025] Figure 6 is Figure 5 A circuit diagram of the AC / DC conversion circuit is shown in the figure;

[0026] Figure 7 is Figure 5 A circuit diagram of the current sampling and comparison circuit is shown in the figure;

[0027] Figure 8 is Figure 5 A circuit diagram of the voltage conversion circuit is shown in the figure.

[0028] Indicated in the figure: 10, intelligent control power supply; 11, mounting plate; 111, first fixing hole; 12, inner cavity body; 121, second fixing hole; 122, through hole; 13, outer shell body; 131, connecting lug; 1311, third fixing hole; 132, wiring hole; 14, circuit board; 141, AC / DC conversion circuit; 142, current sampling and comparison circuit; 143, voltage conversion circuit; 15, battery assembly; 16, switch button; 17, electrical connection interface; 18, indicator lamp; 19, fastening screw; 20, intelligent lock; 30, external device. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0031] Please refer to Figures 1-8As shown, the utility model discloses a kind of intelligent control power supply 10 with multiple output, it is mainly applied to the power supply operation of intelligent lock 20 on it, it includes mounting plate 11, inner cavity 12, outer shell 13, circuit board 14, battery assembly 15, switch button 16, multiple electrical connection interfaces 17 and pilot lamp 18;Mounting plate 11 is support main body, it is fixedly arranged in the position needing installation;Inner cavity 12 is fixedly arranged on mounting plate 11, it is hollow cavity;Outer shell 13 is the hollow cavity of one end opening, it is fixedly arranged on mounting plate 11 and wraps inner cavity 12 in;Circuit board 14, battery assembly 15 are fixedly arranged in inner cavity 12 respectively, circuit board 14 is electrically connected with battery assembly 15, switch button 16, multiple electrical connection interfaces 17, pilot lamp 18 respectively, battery assembly 15 is electrically connected with circuit board 14, pilot lamp 18 and provides electric energy;Switch button 16, multiple electrical connection interfaces 17 and pilot lamp 18 are respectively arranged on circuit board 14 and penetrate inner cavity 12, switch button 16 controls the opening or closing of intelligent control power supply 10, alternating current charges battery assembly 15 through corresponding electrical connection interface 17, battery assembly 15 is respectively powered to intelligent lock 20, external device 30 through corresponding electrical connection interface 17, pilot lamp 18 indicates the working condition of intelligent control power supply 10 and indicates operation.In other embodiments, intelligent control power supply 10 only includes inner cavity 12 or outer shell 13, when not being provided with inner cavity 12, circuit board 14 and battery assembly 15 are fixedly arranged in the hollow cavity surrounded by mounting plate 11 and outer shell 13 respectively.

[0032] Please refer to Figure 1 And Figure 2 As shown, in the embodiment, a plurality of first fixing holes 111 are provided through mounting plate 11, fastening screw 19 is sequentially fixedly connected with inner cavity 12, outer shell 13 by multiple first fixing holes 111, so as to fix inner cavity 12, outer shell 13 on mounting plate 11;Mounting plate 11 is also provided with a plurality of mounting holes (not shown) through, and mounting plate 11 is fixedly arranged on the position needing installation through the plurality of mounting holes (not shown).

[0033] Please refer to Figures 1-3 As shown, in the embodiment, a plurality of second fixing holes 121 and a plurality of through holes 122 are provided through inner cavity 12, fastening screw 19 is sequentially fixedly connected with outer shell 13 by corresponding first fixing hole 111 and second fixing hole 121, and switch button 16, multiple electrical connection interfaces 17 and pilot lamp 18 penetrate inner cavity 12 through corresponding through hole 122.

[0034] Please refer to Figure 1 , Figure 2 And Figure 4As shown in the drawings, in the embodiment, the inner side of the outer shell 13 is provided with a plurality of connecting lugs 131, the third fixing holes 1311 are provided through the connecting lugs 131, the inner threads are provided in the third fixing holes 1311, the fastening screws 19 are fixedly connected in sequence through the corresponding first fixing holes 111, the second fixing holes 121 and the inner threads in the third fixing holes 1311, so as to fix the inner cavity 12 and the outer shell 13 on the mounting plate 11; the wiring holes 132 are also provided through the outer shell 13, and the connecting wires are electrically connected with the corresponding electrical connection interfaces 17 through the wiring holes 132.

[0035] As shown in the drawings, Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in the drawings, in the embodiment, the circuit board 14 is respectively provided with an AC / DC conversion circuit 141, a current sampling and comparison circuit 142 and a voltage conversion circuit 143; the AC / DC conversion circuit 141 is electrically connected with the battery assembly 15, which converts the alternating current commercial power into direct current to charge the battery assembly 15, and the battery assembly 15 supplies power to the intelligent lock 20; the current sampling and comparison circuit 142 is electrically connected with the battery assembly 15, and the current sampling and comparison circuit 142 detects the output current of the battery assembly 15 in real time; the voltage conversion circuit 143 is electrically connected with the current sampling and comparison circuit 142, the battery assembly 15 and the external device 30, which converts the output voltage of the battery assembly 15, so as to facilitate the power supply operation of the external device 30; when the current sampling and comparison circuit 142 detects that the output current of the battery assembly 15 is greater than the preset value, the current sampling and comparison circuit 142 controls the voltage conversion circuit 143 to work, so as to make the voltage conversion circuit 143 supply power to the external device 30.

[0036] As shown in the drawings, Figures 5-8As shown, in the embodiment, the AC / DC conversion circuit 141 converts 220V alternating current into 8.4V direct current to charge the battery assembly 15; in other embodiments, the AC / DC conversion circuit 141 can also convert 220V alternating current into 24V, 12V or 5V direct current to charge the battery assembly 15. Specifically, if the current sampling and comparison circuit 142 collects the output current of the battery assembly 15 in real time and finds that the output current is less than 20mA, it indicates that the smart lock 20 is in standby state; if the current sampling and comparison circuit 142 collects the output current of the battery assembly 15 in real time and finds that the output current is greater than 20mA, it indicates that the smart lock 20 starts to work, at the same time, the MOS tube in the current sampling and comparison circuit 142 is closed, so that the voltage conversion circuit 143 starts to work, the voltage conversion circuit 143 converts the output voltage 8.4V of the battery assembly 15 into 3.7V to supply power to the external device 30, and the external device 30 is a voice broadcast device and / or an atmosphere lamp strip.

[0037] Please refer to Figure 2 As shown, in the embodiment, the battery assembly 15 adopts a polymer lithium ion battery; the switch button 16 adopts a toggle switch; the electrical connection interface 17 includes an input electrical connection interface and an output electrical connection interface, 220V alternating current is electrically connected with the circuit board 14 through the input electrical connection interface, is converted into 8.4V direct current by the AC / DC conversion circuit 141 to charge the battery assembly 15, and is supplied with power to the smart lock 20 and the external device 30 through the corresponding output electrical connection interface; the indicator light 18 adopts an LED lamp.

[0038] It should be noted that the specific working process of the intelligent control power supply 10 with multiple output channels is as follows: when the user operates the smart lock 20, the current sampling and comparison circuit 142 collects the output current of the battery assembly 15 in real time and finds that the output current is greater than a preset value, the MOS tube in the current sampling and comparison circuit 142 is controlled to be closed, so that the voltage conversion circuit 143 starts to work, the voltage conversion circuit 143 converts the output voltage of the battery assembly 15 into 3.7V to supply power to the external device 30, so that the external device 30 starts to work.

[0039] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, not all possible combinations of the technical features in the embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0040] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A smart power supply with multiple outputs, applied to a smart lock, characterized in that, The utility model relates to a smart lock battery charging device, including: a mounting plate; an outer shell fixedly arranged on the mounting plate and forming a hollow cavity with the mounting plate; a circuit board fixedly arranged in the hollow cavity; a battery assembly fixedly arranged in the hollow cavity, which is electrically connected with the circuit board and the smart lock respectively; a plurality of electrical connection interfaces arranged on the circuit board respectively; wherein, the circuit board is respectively provided with an AC / DC conversion circuit and a current sampling and comparison circuit, both of which are electrically connected with the battery assembly, the AC / DC conversion circuit converts alternating current into direct current to charge the battery assembly, and the current sampling and comparison circuit collects the output current of the battery assembly in real time; the circuit board is also provided with a voltage conversion circuit, which is electrically connected with the current sampling and comparison circuit, the battery assembly and an external device respectively, the voltage conversion circuit converts the output voltage of the battery assembly; when the current sampling and comparison circuit detects that the output current of the battery assembly is greater than a preset value, the current sampling and comparison circuit controls the voltage conversion circuit to supply power to the external device.

2. The intelligent power supply with multiple outputs according to claim 1, wherein, It also includes an inner cavity, a switch key and an indicator light; the inner cavity is fixedly arranged on the mounting plate and wrapped in the outer shell; the circuit board and the battery assembly are fixedly arranged in the inner cavity; the switch key and the indicator light are arranged on the circuit board respectively and penetrate the inner cavity respectively.

3. The intelligent power supply with multiple outputs according to claim 2, wherein, The mounting plate, the inner cavity and the outer shell are respectively provided with a first fixing hole, a second fixing hole and a third fixing hole at the corresponding positions, the third fixing hole is provided with an internal thread, and a fastening screw is fixedly connected in sequence through the corresponding first fixing hole, second fixing hole and internal thread of the third fixing hole.

4. The intelligent power supply with multiple outputs according to claim 1, wherein, The AC / DC conversion circuit converts 220V alternating current into 24V, 12V, 8.4V or 5V direct current to charge the battery assembly.

5. The intelligent power supply with multiple outputs according to claim 4, wherein, The voltage conversion circuit converts the output voltage 8.4V of the battery assembly into 3.7V to supply power to the external device.

6. The intelligent power supply with multiple outputs according to claim 5, wherein, The external device is a voice broadcast device and / or ambient light strip.

7. The intelligent power supply with multiple outputs of claim 1, wherein, When the current sampling and comparison circuit collects the output current of the battery assembly greater than 20mA in real time, the MOS tube in the current sampling and comparison circuit is closed, so that the voltage conversion circuit supplies power to the external device.

8. The intelligent power supply with multiple outputs of claim 1, wherein, The outer shell is provided with a wiring hole, and a connecting wire is electrically connected with the corresponding electrical connection interface through the wiring hole.

9. The intelligent power supply with multiple outputs according to any one of claims 1-8, characterized in that, The electrical connection interface includes an input electrical connection interface and an output electrical connection interface; 220V alternating current is electrically connected with the circuit board through the input electrical connection interface; the AC / DC conversion circuit converts 220V alternating current into direct current to charge the battery assembly, and the corresponding output electrical connection interface supplies power to the smart lock and the external device respectively.

10. The intelligent power supply with multiple outputs according to any one of claims 1-8, characterized in that, The battery assembly adopts a polymer lithium ion battery.

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