CN214062626U

CN214062626U - Anti-breaking electronic lock

Info

Publication number: CN214062626U
Application number: CN202022777826.2U
Authority: CN
Inventors: 王杨
Original assignee: Xi'an Like Electronic Technology Co ltd
Current assignee: Xi'an Like Electronic Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-08-27
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a prevent open circuit electronic lock, including power module, integrated chip, on-off control module and power protection module, the integrated chip outside has eight pins, power module and integrated chip's first pin are connected, power protection module and integrated chip's last fifth pin, seventh pin and eighth pin are connected, second pin on-off control module and the integrated chip, fourth pin and sixth pin are connected, voltage input Vin is connected to the third pin on the integrated chip, power module provides the electric energy for on-off control module and power protection module. The utility model has the advantages that: the electronic lock is connected with the switch control module, the working state of the electronic lock can be accurately displayed through the double control switch and the indicating lamp, when the fuse b is fused and broken, the double control switch can be switched to the other branch circuit, so that the electronic lock continues to work, and the working efficiency of the electronic lock is ensured.

Description

Anti-breaking electronic lock

Technical Field

The utility model relates to an electronic lock field, especially a prevent electronic lock that opens circuit.

Background

The electronic lock is a product integrating an electronic technology, an integrated chip design, a large number of electronic components and various innovative identification technologies (including a computer network technology, a built-in software card, a network alarm, a mechanical design of a lock body) and the like. Along with the appearance of the integrated chip special for the electronic lock, the size of the electronic lock is reduced, the reliability is improved, the electronic lock is suitable for being used in occasions with higher safety requirements, a power supply is required to provide energy, the electronic lock on the market is only provided with a circuit loop and is rarely provided with a standby power supply, the electronic lock cannot be used in the current market if a fault occurs, only a specially-assigned person can be required to maintain the electronic lock, and the working efficiency is low and the use experience is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the shortcoming that prior art work efficiency is low, provide a prevent open circuit electronic lock.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a prevent open circuit electronic lock, including power module, integrated chip, on-off control module and power protection module, the integrated chip outside has eight pins, power module and integrated chip's first pin are connected, power protection module and integrated chip's last fifth pin, seventh pin and eighth pin are connected, on-off control module and integrated chip's second pin, fourth pin and sixth pin are connected, voltage input Vin is connected to the last third pin of integrated chip, power module provides the electric energy for on-off control module and power protection module.

Preferably, the power module includes a power supply, a resistor a and an inductor, a negative terminal of the power supply is grounded, a positive terminal of the power supply is connected with one end of the resistor a, the other end of the resistor a is connected with one end of the inductor, and the other end of the inductor is communicated with the first pin of the integrated chip.

Preferably, the power protection module comprises a resistor b, a triode, a capacitor and a fuse, one end of the resistor b is connected with the fifth pin of the integrated chip, the other end of the resistor b is connected with the collector of the triode, the emitter of the triode is connected with one end of the fuse, the other end of the fuse is connected with the eighth pin of the integrated chip, the base of the triode is connected with one end of the capacitor, and the other end of the capacitor is connected with the seventh pin of the integrated chip.

Preferably, the switch control module comprises a resistor c, an indicator lamp a, an indicator lamp b, a resistor d, a fuse b and a double-control switch, one end of the resistor c is connected to a second pin of the integrated chip, the other end of the resistor c is connected with the indicator lamp a, a fourth pin of the integrated chip is connected with the indicator lamp b, a sixth pin of the integrated chip is connected with the resistor d, the indicator lamp b is connected with the resistor d in parallel, the other end of the resistor d is connected with the fuse b, the fuse b is connected to the trunk, the other end of the fuse b and the other end of the indicator lamp a are respectively connected to the double-control switch, and the double-control switch is further connected with the voltage output Vout.

Preferably, the triode is a PNP tube.

Preferably, the capacitance value of the capacitor is between 150 and 250 microfarads.

The utility model has the advantages of it is following: the utility model discloses be connected with on-off control module, through double control switch and pilot lamp, the operating condition of demonstration electronic lock that can be accurate, when fuse b takes place the fusing and opens circuit, double control switch can switch to another branch road, makes the electronic lock continue work, has guaranteed the work efficiency of electronic lock.

Drawings

Fig. 1 is a schematic structural view of an anti-trip electronic lock module;

FIG. 2 is a schematic diagram of the circuit schematic of the anti-trip electronic lock;

in the figure, 1-power supply, 2-resistor a, 3-inductor, 4-integrated chip, 5-resistor b, 6-triode, 7-capacitor, 8-fuse a, 9-resistor c, 10-indicator lamp a, 11-indicator lamp b, 12-resistor d, 13-fuse b, 14-double control switch.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships which are usually placed when the products of the present invention are used, or the directions or positional relationships which are usually understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific directions, be constructed and operated in specific directions, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In this embodiment, as shown in fig. 1, an electronic lock for preventing a circuit break includes a power module, an integrated chip 4, a switch control module and a power protection module, eight pins are provided outside the integrated chip 4, the power module is connected to a first pin of the integrated chip 4, the power protection module is connected to a fifth pin, a seventh pin and an eighth pin on the integrated chip 4, the switch control module is connected to a second pin, a fourth pin and a sixth pin on the integrated chip 4, a third pin on the integrated chip 4 is connected to a voltage input Vin, and the power module provides electric energy to the switch control module and the power protection module. The integrated chip 4 is used for connecting the power supply module, the switch control module and the power supply protection module, and ensuring stable transmission of three circuits. Through being provided with on-off control module, through double control switch and pilot lamp, the operating condition of demonstration electronic lock that can be accurate, when fuse b takes place to fuse and opens circuit, double control switch can switch to another branch road, makes electronic lock continue work, has guaranteed electronic lock's work efficiency.

In this embodiment, the power module includes a power supply 1, a resistor a2 and an inductor 3, the negative terminal of the power supply 1 is grounded, the positive terminal of the power supply 1 is connected to one end of a resistor a2, the other end of a resistor a2 is connected to one end of the inductor 3, the other end of the inductor 3 is connected to the first pin of the ic 4, and the inductor is used for filtering and preventing interference to the ic and the power supply due to sudden change of current.

In this embodiment, the power protection module includes a resistor b5, a transistor 6, a capacitor 7, and a fuse 8, one end of the resistor b5 is connected to the fifth pin of the ic 4, the other end of the resistor b5 is connected to the collector of the transistor 6, the emitter of the transistor 6 is connected to one end of the fuse 8, the other end of the fuse 8 is connected to the eighth pin of the ic 4, the base of the transistor 6 is connected to one end of the capacitor 7, and the other end of the capacitor is connected to the seventh pin of the ic, further, in this embodiment, the transistor 6 is a PNP transistor, and the transistor 6 is used to control the current amplification factor; the resistor b5 and the capacitor 7 are used for stabilizing the output and input of the three-port current of the triode 6 and eliminating noise interference brought by the circuit. Further, when the power supply 1 outputs electric energy, the capacitor 7 is charged, and when the power supply 1 does not provide electric energy output, the capacitor 7 discharges to serve as a second power supply, so that the normal operation of the switch control module is ensured under the condition of cutting off an external voltage signal. Optionally, the capacitance value of the capacitor 7 is between 150 and 250 microfarads, and preferably, the capacitance value is 280 microfarads.

In this embodiment, the switch control module includes a resistor c9, an indicator light a10, an indicator light b11, a resistor d12, a fuse b13 and a dual-control switch 14, one end of the resistor c9 is connected to the second pin of the integrated chip 4, the other end of the resistor c9 is connected to the indicator light a10, the fourth pin of the integrated chip 4 is connected to the indicator light b11, the sixth pin of the integrated chip 4 is connected to the resistor d12, the indicator light b11 is connected in parallel to the resistor d12, the other end of the resistor d12 is connected to the fuse b13, the fuse b13 is connected to the trunk, the other end of the fuse b13 and the other end of the indicator light a10 are respectively connected to the dual-control switch 14, the dual-control switch 14 is further connected to a voltage output Vout, when an external voltage is stable, the electronic lock is in a first working state, the indicator light b11 is on, and the dual-control switch 14 is connected to one end of the fuse b 13; when the external voltage is too large, the fuse b13 is automatically fused, the circuit in the first working state is protected, the double-control switch jumps to be connected with one end of the indicator light a10, the electronic lock is in the second working state, preferably, the indicator light a10 and the indicator light b11 emit light with different colors, and therefore a user can know which working state the electronic lock is in time so as to maintain and repair in time.

The working process of the utility model is as follows: the power supply 1 supplies power to each module, wherein the capacitor 7 in the power supply protection module is charged, when the power supply 1 does not supply electric energy, the capacitor 7 generates electricity to serve as a second power supply, the normal operation of the switch control module is ensured, the electronic lock is in a first working state, the indicator lamp b11 is on, and the double-control switch 14 is communicated with one end of the fuse b 13; when the external voltage is too large, the fuse b13 is automatically fused, the circuit in the first working state is protected, the double-control switch jumps to be connected with one end of the indicator light a10, and the electronic lock is in the second working state.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An anti-breaking electronic lock is characterized in that: including power module, integrated chip (4), on-off control module and power protection module, there are eight pins integrated chip (4) outside, power module with the first pin of integrated chip (4) is connected, fifth pin, seventh pin and the eighth pin on power protection module and the integrated chip (4) are connected, on-off control module with second pin, fourth pin and the sixth pin on the integrated chip (4) are connected, voltage input Vin is connected to the third pin on the integrated chip (4), power module gives on-off control module with power protection module provides the electric energy.

2. The anti-trip electronic lock of claim 1, wherein: the power module comprises a power supply (1), a resistor a (2) and an inductor (3), the negative end of the power supply (1) is grounded, the positive electrode of the power supply (1) is connected with one end of the resistor a (2), the other end of the resistor a (2) is connected with one end of the inductor (3), and the other end of the inductor (3) is communicated with a first pin of the integrated chip (4).

3. The anti-trip electronic lock of claim 1, wherein: the power protection module includes resistance b (5), triode (6), electric capacity (7) and fuse (8), the one end of resistance b (5) with the fifth pin of NULL (4) is connected, the other end of resistance b (5) with the collecting electrode of triode (6) is connected, the projecting pole of triode with the one end of fuse (8) is connected, the other end of fuse (8) is connected on the eighth pin of NULL (4), the base of triode (6) with the one end of electric capacity (7) is connected, the other termination of electric capacity is in on the seventh pin of NULL.

4. The anti-trip electronic lock of claim 1, wherein: the switch control module comprises a resistor c (9), an indicator lamp a (10), an indicator lamp b (11), a resistor d (12), a fuse b (13) and a double-control switch (14), one end of the resistor c (9) is connected to a second pin of the integrated chip (4), the other end of the resistor c (9) is connected with the indicator lamp a (10), a fourth pin of the integrated chip (4) is connected with the indicator lamp b (11), a sixth pin of the integrated chip (4) is connected with the resistor d (12), the indicator lamp b (11) is connected with the resistor d (12) in parallel, the other end of the resistor d (12) is connected with the fuse b (13), the fuse b (13) is connected to a trunk, the other end of the fuse b (13) and the other end of the indicator lamp a (10) are respectively connected to the double-control switch (14), the double-control switch (14) is also connected with a voltage output Vout.

5. A circuit breaking prevention electronic lock as claimed in claim 3, characterized in that: the triode (6) is a PNP tube.

6. A circuit breaking prevention electronic lock as claimed in claim 3, characterized in that: the capacitance value of the capacitor (7) is between 150 and 250 microfarads.