CN210607113U - Relay - Google Patents

Abstract

The utility model relates to a relay, include: the relay module, the power module, current sensor, a comparator, the level regulator and controller, current sensor, power module and level regulator all link to each other with the comparator, relay module and comparator all link to each other with the controller, the power that awaits measuring flows through output first voltage signal to the comparator behind the current sensor, the input current of power module flows through level regulator output second voltage signal to comparator, the comparator compares first voltage signal and second voltage signal, when first voltage signal is greater than the second voltage signal, the comparator outputs operating voltage to the controller, controller control the work of relay module, through comparing with adjustable second voltage signal, make the operating current of relay can carry out flexible control, no longer confine to a certain specific operating current, the application range of relay has been enlarged.

Description

Relay

Technical Field

The utility model relates to a relay technical field, concretely relates to relay.

Background

In the field of electrical and industrial control, relays are widely used, and play an important role in switching circuits, safety protection and the like as a control element. The principle of the voltage-triggered control type relay is that a current branch to be detected is connected into a current transformer, then the current transformer reduces an actual current signal in proportion and outputs the actual current signal, the obtained current signal is amplified through a current signal amplifier and converted to obtain a voltage signal capable of triggering a related relay, and the relay receives a trigger signal and then performs corresponding action.

However, the voltage control relay of this type has a great limitation in that the operating current is not adjustable, that is, the relay is triggered to operate when the voltage reaches a certain fixed value.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to overcome the shortcomings of the prior art, and to provide a relay, so as to expand the application range of the relay.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a relay, comprising: the device comprises a relay module, a power supply module, a current sensor, a comparator, a potential regulator and a controller;

the current sensor, the power supply module and the potential regulator are all connected with the comparator;

the relay module and the comparator are both connected with the controller;

the relay module, the power supply module, the comparator, the potential regulator and the controller are all fixedly arranged on an integrated circuit board;

the relay module and the power supply module are both arranged on the same side of the integrated circuit board;

the comparator, the potential adjuster and the controller are arranged on one side opposite to the relay module and the power supply module;

the power that awaits measuring flows through output first voltage signal extremely behind the current sensor the comparator, power module's input current flows through potential regulator output second voltage signal extremely the comparator, the comparator is relatively first voltage signal with second voltage signal, works as first voltage signal is greater than when the second voltage signal, the comparator output operating voltage extremely the controller, the controller control relay module work.

Optionally, the relay further includes: the first connecting terminal, the second connecting terminal and the third connecting terminal;

the first wiring terminal is arranged on one side close to the current sensor and connected with the current sensor;

the second wiring terminal is arranged at one side close to the power supply conversion module and is respectively connected with the power supply module and the potential regulator;

the third wiring terminal is arranged on one side close to the relay module and connected with the relay module.

Optionally, the relay further includes a filter capacitor;

and the filter capacitor is connected with the current sensor and the potential regulator.

Optionally, the relay further includes a pin header;

the pin header is arranged on one side close to the controller and used for burning a control program for the controller.

Optionally, the relay further includes an indicator light;

the indicator light is connected with the controller.

Optionally, the controller is a single chip microcomputer.

The utility model provides a pair of relay, include: the relay module, the power supply module, the current sensor, the comparator, the potential regulator and the controller are all connected with the comparator, the relay module and the comparator are all connected with the controller, the relay module, the power supply module, the comparator, the potential regulator and the controller are all fixedly arranged on the integrated circuit board, the relay module and the power supply module are all arranged on the same side of the integrated circuit board, the comparator, the potential regulator and the controller are arranged on the side opposite to the relay module and the power supply module, a power supply to be tested outputs a first voltage signal to the comparator after flowing through the current sensor, the input current of the power supply module outputs a second voltage signal to the comparator after flowing through the potential regulator, the comparator compares the first voltage signal with the second voltage signal, when the first voltage signal is larger than the second voltage signal, the comparator outputs working voltage to the controller, and the controller controls the relay module to work. Through measuring the electric current and converting voltage into voltage and the voltage that power module passes through the potentiometre conversion and carry out the comparison, and then the work of control relay, because the second voltage signal is the size of comparative voltage can be adjusted through the potentiometre promptly for the operating current of relay can be adjusted in a flexible way, has guaranteed to also can use this relay under multiple condition, no longer restricts in a certain fixed operating current, has enlarged the application range of relay.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a relay provided in an embodiment of the present invention.

Fig. 2 is a schematic diagram of the circuit connection principle of the relay of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of a relay provided in an embodiment of the present invention.

As shown in fig. 1, a relay of the present embodiment includes: the relay module 5, the power module 4, the current sensor 9, the comparator 8, the potential regulator 10 and the controller 7, wherein the current sensor 9, the power module 4 and the potential regulator 10 are all connected with the comparator 8, the relay module 5 and the comparator 8 are all connected with the controller 7, the relay module 5, the power module 4, the comparator 8, the potential regulator 10 and the controller 7 are all fixedly arranged on an integrated circuit board, the relay module 5 and the power module 4 are all arranged on the same side of the integrated circuit board, the comparator 8, the potential regulator 10 and the controller 7 are arranged on the side opposite to the relay module 5 and the power module 4, a power source to be tested outputs a first voltage signal to the comparator 8 after flowing through the current sensor 9, an input current of the power module 4 outputs a second voltage signal to the comparator 8 after flowing through the potential regulator 10, the comparator 8 compares the first voltage signal with the second voltage signal, when the first voltage signal is greater than the second voltage signal, the comparator 8 outputs a working voltage to the controller 7, and the controller 7 controls the relay module 5 to work. The relay is the switch promptly, regards current signal as the signal source of trigger switch work, compares with the specific voltage trigger of standard, and current signal does not have invariable clear and definite standard value, the utility model discloses can realize the purpose of arbitrary electric current trigger control through comparator 8 comparison in the 30 ampere electric current range, controller 7 can also realize producing certain time delay after triggering moreover, and the concrete time of time delay can be set for by oneself according to actual conditions, and the switch load of 10 amperes under the general condition has satisfied various special requirements of electric current trigger relay basically.

Further, as shown in fig. 1, the relay of this embodiment further includes a first connection terminal 1, a second connection terminal 2, and a third connection terminal 6, where the first connection terminal 1 is disposed on a side close to the current sensor 9, the first connection terminal 1 is connected to the current sensor 9, the second connection terminal 2 is disposed on a side close to the power conversion module, the second connection terminal 2 is respectively connected to the power module 4 and the potential adjuster 10, the third connection terminal 6 is disposed on a side close to the relay module 5, and the third connection terminal 6 is connected to the relay module 5. In a specific implementation process, the current to be measured is connected into the relay through the first wiring terminal 1, in order to facilitate connection, the connecting terminal is arranged in a plug-in type, so that good connection in the connection process is ensured, the problem of poor contact is avoided, before the current to be detected is connected into the first connecting terminal 1, the power supply module 4 is connected with the second connecting terminal 2 to be conducted, the current to be detected is input into the current sensor 9 through the first connecting terminal 1 at the moment, the current sensor 9 performs Hall detection, and then outputting a direct current low voltage signal proportional to the current to be measured, wherein the output low voltage signal and the voltage signal output by the power module 4 are within a threshold range, the output low voltage signal and the voltage signal are both output to the comparator 8 for comparison, and if the conversion voltage of the current to be measured is greater than the comparison voltage of the power module 4, the relay is controlled to start working. For example, the current output by the power module 4 is 5 amperes, the voltage output to the comparator 8 after passing through the potential regulator 10 is 15 volts, that is, when the converted voltage after the current to be measured is converted is greater than 15 volts, the control relay starts to work, and the current to be measured input to the current sensor 9 is changed through a specific bit column, the output proportional voltage and the standard voltage to be measured are within a threshold interval range, because the potential regulator 10 can regulate the voltage in real time, that is, compare the voltage, it means that the potential regulator 10 can be regulated according to specific working conditions, and further the purpose of controlling the relay to work by different currents to be measured is achieved, so that the use of the relay is more flexible, the relay can also be applied to various different working environments, and the use range is expanded.

Fig. 2 is a schematic diagram of the circuit connection principle of the relay of fig. 1.

As shown in fig. 2, the schematic diagram of the circuit connection principle provided by the present invention can be understood more clearly from the schematic diagram of the circuit, wherein the current to be measured passes through the P1 terminal (i.e. the first connection terminal 1 in fig. 1) and then enters the current sensor U1 (i.e. 9 in fig. 1) through the pin 1 and the pin 2, the pin 3 and the pin 4, the current sensor U1, as a hall effect based linear current sensor IC, converts the detected current into a direct current low voltage signal proportional to the detected current and outputs the direct current low voltage signal through the pin VOUT, and then enters the comparator U2A (i.e. 10 in fig. 1) together with the regulated voltage signal output by the potentiometer 10 formed by the resistor R1, if the detected proportional voltage value (i.e. the first voltage signal) is greater than the regulated voltage value (i.e. the second voltage signal) of the potentiometer U2A, the LED2 is lit, and the comparison circuit formed by the comparator U2A outputs a positive potential voltage signal through the pin P3.3 and inputs the positive potential voltage signal into the controller, the controller U3 outputs voltage signal to the relay J1 through the pin P3.5 after setting time delay, thereby controlling the relay J1 to act in a time delay way, and the relay of the relay module 5 can be an electromagnetic relay. Through the combination of the schematic circuit diagram and the schematic structure diagram, not only can the specific structural composition be clearly understood, but also the detailed working principle and the connection relationship of each pin can be understood.

As shown in fig. 1, the relay of the present embodiment further includes a filter capacitor 3, and the filter capacitor 3 is connected to the current sensor 9 and the potential adjuster 10. The filter capacitor 3 is used for reducing the AC ripple factor and promoting an energy storage device of high-efficient smooth DC output, generally call this kind of device as filter capacitor 3, electrolytic capacitor is named because it uses electrolyte as electrode (negative pole), electrolytic capacitor's one end is anodal, the other end is the negative pole, can not connect conversely, the positive terminal is connected at rectification output circuit's positive terminal to the positive terminal, the negative terminal at the circuit is connected to the negative pole, in all need convert AC into DC's circuit, it can be more stable to set up filter capacitor 3 makes electronic circuit's working property, the interference of alternating ripple to electronic circuit has also been reduced simultaneously.

Further, as shown in fig. 1, the relay according to this embodiment further includes a pin header 11, where the pin header 11 is disposed at a side close to the controller 7 and is used for burning a control program for the controller 7. The arrangement of the pin header 11 enables the internal program of the controller 7 to be changed conveniently, for example, the time delay time is modified, the complex operation that the controller 7 is placed in a development version to burn the program is avoided, and the practical operation of the relay is facilitated. The controller 7 preferably selects a single chip microcomputer of STC15F104E type, the current sensor 9 preferably selects an ACS712 type linear current sensor 9, the potentiometer preferably selects a 3296W type potentiometer 10, and the comparator 8 preferably selects an LM358 type operational amplifier, it should be noted that the specific types of the components in this embodiment are only illustrated by way of example, and there is no limitation, as long as the principles of the present invention are all within the protection scope of the present invention.

In order to clearly grasp the using process, the relay in this embodiment may further include an indicator light connected to the controller 7, and the different operating states of the relay are indicated by controlling the color of the indicator light, or the different operating states are indicated by the number of the indicator lights, which is not particularly limited as long as the poor operating conditions can be more clearly grasped.

The embodiment provides a relay, includes: the relay module 5, the power module 4, the current sensor 9, the comparator 8, the potential regulator 10 and the controller 7, wherein the current sensor 9, the power module 4 and the potential regulator 10 are all connected with the comparator 8, the relay module 5 and the comparator 8 are all connected with the controller 7, the relay module 5, the power module 4, the comparator 8, the potential regulator 10 and the controller 7 are all fixedly arranged on an integrated circuit board, the relay module 5 and the power module 4 are all arranged on the same side of the integrated circuit board, the comparator 8, the potential regulator 10 and the controller 7 are arranged on the side opposite to the relay module 5 and the power module 4, a power source to be tested outputs a first voltage signal to the comparator 8 after flowing through the current sensor 9, an input current of the power module 4 outputs a second voltage signal to the comparator 8 after flowing through the potential regulator 10, the comparator 8 compares the first voltage signal with the second voltage signal, when the first voltage signal is greater than the second voltage signal, the comparator 8 outputs a working voltage to the controller 7, and the controller 7 controls the relay module 5 to work. Through measuring the electric current and converting voltage into voltage and the voltage that power module 4 passes through the potentiometre conversion and carry out the comparison, and then the work of control relay, because the second voltage signal is the size of comparative voltage can be adjusted through potentiometre 10 promptly for the operating current of relay can be adjusted in a flexible way, has guaranteed to also can use this relay under multiple condition, no longer restricts in a certain fixed operating current, has enlarged the application range of relay.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means at least two unless otherwise specified.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (6)

1. A relay, comprising: the device comprises a relay module, a power supply module, a current sensor, a comparator, a potential regulator and a controller;

the current sensor, the power supply module and the potential regulator are all connected with the comparator;

the relay module and the comparator are both connected with the controller;

the relay module, the power supply module, the comparator, the potential regulator and the controller are all fixedly arranged on an integrated circuit board;

the relay module and the power supply module are both arranged on the same side of the integrated circuit board;

the comparator, the potential adjuster and the controller are arranged on one side opposite to the relay module and the power supply module;

the power that awaits measuring flows through output first voltage signal extremely behind the current sensor the comparator, power module's input current flows through potential regulator output second voltage signal extremely the comparator, the comparator is relatively first voltage signal with second voltage signal, works as first voltage signal is greater than when the second voltage signal, the comparator output operating voltage extremely the controller, the controller control relay module work.

2. The relay according to claim 1, further comprising: the first connecting terminal, the second connecting terminal and the third connecting terminal;

the first wiring terminal is arranged on one side close to the current sensor and connected with the current sensor;

the second wiring terminal is arranged on one side close to the power supply module and is respectively connected with the power supply module and the potential regulator;

the third wiring terminal is arranged on one side close to the relay module and connected with the relay module.

3. The relay according to claim 1, further comprising a filter capacitor;

and the filter capacitor is connected with the current sensor and the potential regulator.

4. The relay according to claim 1, further comprising a pin header;

the pin header is arranged on one side close to the controller and used for burning a control program for the controller.

5. The relay according to claim 1, further comprising an indicator light;

the indicator light is connected with the controller.

6. The relay according to any of claims 1-5, wherein said controller is a single chip microcomputer.

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