阅读说明：本技术 一种数字式交流电压继电器 (Digital AC voltage relay ) 是由 李桂蓉 于 2020-12-17 设计创作，主要内容包括：本发明涉及继电器技术领域,且公开了一种数字式交流电压继电器,包括微控制器,信息采集模块和信息处理模块,所述微控制器与信息采集模块、信息处理模块和执行模块均双向连接,所述信息采集模块的输出端分别与信息处理模块和微控制器的输入端电性连接,所述信息处理模块的输入端与微控制器和信息采集模块的输出端电性连接。本发明通过自检采集模块、自检信息处理单元在控制采集模块和控制信息处理单元每次对电路的安全控制动作之前,均对衔铁复位装置进行检测,防止衔铁复位装置损坏后而未被发现,从而避免该继电器在电路故障时无法保护电路,提高该继电器的安全性。(The invention relates to the technical field of relays and discloses a digital alternating-current voltage relay which comprises a microcontroller, an information acquisition module and an information processing module, wherein the microcontroller is bidirectionally connected with the information acquisition module, the information processing module and an execution module, the output end of the information acquisition module is electrically connected with the input ends of the information processing module and the microcontroller respectively, and the input end of the information processing module is electrically connected with the output ends of the microcontroller and the information acquisition module. According to the invention, the armature resetting device is detected by the self-checking acquisition module and the self-checking information processing unit before the control acquisition module and the control information processing unit perform safe control action on the circuit each time, so that the armature resetting device is prevented from being undetected after being damaged, the problem that the circuit cannot be protected when the circuit of the relay is in fault is avoided, and the safety of the relay is improved.)

1. The utility model provides a digital alternating voltage relay, includes microcontroller (1), information acquisition module (2) and information processing module (3), its characterized in that: microcontroller (1) and information acquisition module (2), information processing module (3) and execution module (4) equal both way junction, the output of information acquisition module (2) respectively with the input electric connection of information processing module (3) and microcontroller (1), the input of information processing module (3) and the output electric connection of microcontroller (1) and information acquisition module (2), the output of information processing module (3) respectively with the input electric connection of microcontroller (1) and execution module (4), the input of execution module (4) respectively with the output electric connection of microcontroller (1) and information processing module (3), the output of execution module (4) is connected with outlet relay (5) and alarm (6) respectively.

2. A digital ac voltage relay according to claim 1, characterized in that: information acquisition module (2) include self-checking acquisition module (201) and control acquisition module (202), be connected with delayer (7) between self-checking acquisition module (201) and control acquisition module (202), self-checking acquisition module (201) electric connection has armature resetting means (10).

3. A digital ac voltage relay according to claim 2, characterized in that: the armature resetting device (10) is made of an insulating material, a sliding plug (11) is connected to the inside of the armature resetting device (10) in a sliding mode, the sliding plug (11) divides an inner cavity of the armature resetting device (10) into a first air cavity (1001) and a second air cavity (1002), an electric plate set I (8) and an electric plate set II (9) which are located in the first air cavity (1001) and the second air cavity (1002) are respectively arranged on the inner wall of the armature resetting device (10), the electric plate set I (8) and the electric plate set II (9) are respectively arranged on the symmetrical inner wall of the armature resetting device (10) in pairs, the electric plate set I (8) and the electric plate set II (9) are connected with a self-checking acquisition module (201), a connecting rod (12) is fixedly connected to the top surface of the sliding plug (11), and the connecting rod (12) penetrates through the inside of the armature resetting device (10) and is connected to one end of an armature, the position where the connecting rod (12) is connected with the armature resetting device (10) is sealed by a rubber ring.

4. A digital ac voltage relay according to claim 3, characterized in that: radioactive substances (13) are respectively placed in the first air cavity (1001) and the second air cavity (1002), and the electric plate group I (8) and the electric plate group II (9) are metal conducting strips.

5. A digital ac voltage relay according to claim 2, characterized in that: self-checking collection module (201) includes power module (2010), voltage adjustment module (2011) and memory cell (2012), the output of power module (2010) and the input electric connection of voltage adjustment module (2011), the output of voltage adjustment module (2011) respectively with I (8) of electroplax group and II (9) electric connection of electroplax group of one side, the opposite side electricity of electroplax group I (8) and II (9) of electroplax group are connected to the input of memory cell (2012).

6. A digital AC voltage relay according to claim 5, characterized in that: information processing module (3) include self-checking information processing unit (301), control information processing unit (302) and control unit (303), the input of self-checking information processing unit (301) and the output electric connection of memory cell (2012), the input of control information processing unit (302) and the input electric connection of control acquisition module (202), the output of self-checking information processing unit (301) and control information processing unit (302) all is connected to the input of control unit (303).

7. The digital alternating-current voltage relay as claimed in claim 6, wherein the self-test information processing unit (301) comprises a self-test information processor (3010), a current processing unit (3011) and a current difference calculating unit (3012), an input end of the self-test information processor (3010) is electrically connected with an output end of the storage unit (2012), an input end and an output end of the current processing unit (3011) are respectively electrically connected with an output end of the self-test information processor (3010) and an input end of the current difference calculating unit (3012), and an output end of the current difference calculating unit (3012) is electrically connected with an input end of the control unit (303).

8. The digital alternating-current voltage relay is characterized in that the execution module (4) comprises an execution processor (401) and a current controller (402), wherein an input end of the execution processor (401) is electrically connected with an output end of the control unit (303), an output end of the execution processor (401) is electrically connected with an input end of the current controller (402), and an output end of the current controller (402) is electrically connected with input ends of the outlet relay (5) and the alarm (6).

Technical Field

The invention relates to the technical field of relays, in particular to a digital alternating-current voltage relay.

Background

A voltage relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is usually applied to an automatic control circuit, and which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. The starting circuit is mainly used in relay protection devices of generators, transformers and power transmission lines and is used as a starting element of overvoltage protection or low-voltage locking. Digital measurement relay. The relay is a lifting of a single-function relay or a function splitting and simplification of a multifunctional comprehensive protection relay. The digital circuit design is adopted, so that the protection function of various single-function relays can be realized, the data display function of a digital display meter is also realized, the visualization of measurement and setting values is realized, the qualitative and quantitative effects are realized, and the intellectualization and the networking of products can also be realized.

The relay plays a role of regulating a circuit in a circuit, an output loop of the digital relay comprises an outlet relay playing a role of execution, the outlet relay is the last-stage output of a relay protection device and a safety automatic device, and a special intermediate relay which directly sends a tripping command to a breaker after action is also called a tripping relay, and is usually served by an electromagnetic intermediate relay or a dry reed relay which acts rapidly. The action principle of the electromagnetic intermediate relay is as follows: when the exciting amount of the relay coil is equal to or larger than the action value, the armature is attracted to the magnetic guiding body, and meanwhile, the armature presses the contact elastic sheet, so that the contact is connected, disconnected or switched to a controlled circuit. When the coil of the relay is de-energized or the amount of energization is reduced to less than its return value, the armature and the contact piece return to the original position under the action of the return spring. In the action process, the spring is easy to generate elastic fatigue after long-term and repeated deformation to cause the damage of the outlet relay, but the existing digital relay cannot detect the circuit of the digital relay in the use process, cannot acquire information and alarm in time when the outlet relay is damaged, and cannot play a role in regulation when the external circuit is in danger.

Disclosure of Invention

Aiming at the defects of the existing digital voltage relay in the background technology in the using process, the invention provides a digital alternating voltage relay which has the advantage of self detection and solves the problem that the digital relay in the background technology is damaged to cause that the circuit cannot be adjusted.

The invention provides the following technical scheme: the utility model provides a digital alternating voltage relay, includes microcontroller, information acquisition module and information processing module, microcontroller and information acquisition module, information processing module and the equal both way junction of execution module, information acquisition module's output respectively with information processing module and microcontroller's input electric connection, information processing module's input and microcontroller and information acquisition module's output electric connection, information processing module's output respectively with microcontroller and execution module's input electric connection, execution module's input respectively with microcontroller and information processing module's output electric connection, execution module's output is connected with outlet relay and alarm respectively.

Preferably, the information acquisition module comprises a self-checking acquisition module and a control acquisition module, a delayer is connected between the self-checking acquisition module and the control acquisition module, and the self-checking acquisition module is electrically connected with an armature resetting device.

Preferably, the armature resetting device is made of an insulating material, a sliding plug is slidably connected inside the armature resetting device, an inner cavity of the armature resetting device is divided into a first air cavity and a second air cavity by the sliding plug, an electric plate set I and an electric plate set II which are located in the first air cavity and the second air cavity are respectively arranged on the inner wall of the armature resetting device, the electric plate set I and the electric plate set II are respectively arranged on the symmetrical inner walls of the armature resetting device in pairs, the electric plate set I and the electric plate set II are connected with a self-checking acquisition module, a connecting rod is fixedly connected to the top surface of the sliding plug, penetrates through the inside of the armature resetting device and is connected to one end of an armature, and the connecting rod is sealed by a rubber ring at the position where the armature resetting device is connected.

Preferably, radioactive substances are respectively placed in the first air cavity and the second air cavity, and the electric plate group I and the electric plate group II are metal conducting strips.

Preferably, the self-checking acquisition module comprises a power module, a voltage adjusting module and a storage unit, wherein the output end of the power module is electrically connected with the input end of the voltage adjusting module, the output end of the voltage adjusting module is electrically connected with the electric board set I and the electric board set II on one side respectively, and the output end of the voltage adjusting module is electrically connected with the input end of the storage unit through the electric board set I and the electric board set II on the other side.

Preferably, the information processing module includes self-checking information processing unit, control information processing unit and the control unit, self-checking information processing unit's input and the output electric connection of memory cell, control information processing unit's input and the input electric connection of control acquisition module, self-checking information processing unit and control information processing unit's output all are connected to the input of control unit.

Preferably, the self-checking information processing unit includes self-checking information processor, current processing unit and current difference computational element, self-checking information processor's input and memory cell's output electric connection, current processing unit's input and output respectively with self-checking information processor's output and current difference computational element's input electric connection, current difference computational element's output electric connection to the input of the control unit.

Preferably, the execution module comprises an execution processor and a current controller, the input end of the execution processor is electrically connected with the output end of the control unit, the output end of the execution processor is electrically connected with the input end of the current controller, and the output end of the current controller is electrically connected with the output end of the outlet relay and the input end of the alarm.

The invention has the following beneficial effects:

1. according to the invention, the armature resetting device is detected by the self-checking acquisition module and the self-checking information processing unit before the control acquisition module and the control information processing unit perform safe control action on the circuit each time, so that the armature resetting device is prevented from being undetected after being damaged, the problem that the circuit cannot be protected when the circuit of the relay is in fault is avoided, and the safety of the relay is improved.

2. The invention utilizes the compression expansion performance of the gas in the armature resetting device and the action of the pressure difference to reset the armature, abandons the traditional spring resetting mode, prolongs the service life of the relay, regularly detects the gas in the armature resetting device and greatly reduces the failure rate of the relay.

Drawings

FIG. 1 is a block diagram of the system of the present invention;

FIG. 2 is a block diagram of a self-test acquisition module according to the present invention;

FIG. 3 is a system block diagram of a self-test information processing unit of the present invention;

FIG. 4 is a system block diagram of an execution module of the present invention;

fig. 5 is a schematic structural view of the armature return apparatus of the present invention.

In the figure: 1. a microcontroller; 2. an information acquisition module; 201. a self-checking acquisition module; 2010. a power supply module; 2011. a voltage adjustment module; 2012. a storage unit; 202. a control acquisition module; 3. an information processing module; 301. a self-check information processing unit; 3010. a self-checking information processor; 3011. a current processing unit; 3012. a current difference calculation unit; 302. a control information processing unit; 303. a control unit; 4. an execution module; 401. an execution processor; 402. a current controller; 5. an outlet relay; 6. an alarm; 7. a delay device; 8. an electric board group I; 9. an electric plate group II; 10. an armature resetting device; 1001. a first air cavity; 1002. a second air cavity; 11. a sliding plug; 12. a connecting rod; 13. a radioactive substance.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a digital ac voltage relay, an information acquisition module 2 and an information processing module 3, a microcontroller 1 and the information acquisition module 2, the information processing module 3 and an execution module 4 are both connected bidirectionally, an output terminal of the information acquisition module 2 is electrically connected to input terminals of the information processing module 3 and the microcontroller 1, an input terminal of the information processing module 3 is electrically connected to output terminals of the microcontroller 1 and the information acquisition module 2, an output terminal of the information processing module 3 is electrically connected to input terminals of the microcontroller 1 and the execution module 4, an input terminal of the execution module 4 is electrically connected to output terminals of the microcontroller 1 and the information processing module 3, and an output terminal of the execution module 4 is connected to an outlet relay 5 and an alarm 6. The information acquisition module 2, the information processing module 3 and the execution module 4 transmit the information independently, and simultaneously transmit the information to the microcontroller 1, and the microcontroller 1 stores and reads the information, so that the detection information is convenient to search.

The information collection module 2 comprises a self-checking collection module 201 and a control collection module 202, the control collection module 202 is used for collecting voltage information and judging whether the voltage is normal, which belongs to the prior art, a delayer 7 is connected between the self-checking collection module 201 and the control collection module 202, the voltage information collected by the control collection module 202 in the prior art is collected according to a certain frequency, in the scheme, the frequency of the self-checking collection module 201 can be consistent with the frequency of the information collected by the control collection module 202, but the collection time point of the self-checking collection module 201 is earlier than the time point collected by the control collection module 202, namely, the data collection of the self-checking collection module 201 is firstly carried out, after the delay of the delayer 7, the data collection of the control collection module 202 is carried out, then the relay carries out self-checking judgment once before each control operation, the self-checking collection module 201 is electrically connected with an armature reset device 10, the armature resetting device 10 is used for resetting the armature, the traditional resetting mode is that a spring is used for resetting, but the spring is easy to generate elastic fatigue after being deformed for many times, so the scheme uses the structure to replace the traditional spring.

The armature resetting device 10 is made of insulating materials, a sliding plug 11 is connected inside the armature resetting device 10 in a sliding mode, an inner cavity of the armature resetting device 10 is divided into a first air cavity 1001 and a second air cavity 1002 by the sliding plug 11, a connecting rod 12 is fixedly connected to the top surface of the sliding plug 11, the position where the connecting rod 12 is connected with the armature resetting device 10 is sealed by a rubber ring, the connecting rod 12 penetrates through the inside of the armature resetting device 10 and is connected to one end of an armature, air is filled into the first air cavity 1001 and the second air cavity 1002, so that the air pressure in the second air cavity 1002 is smaller than the air pressure in the first air cavity 1001 under normal conditions, the connecting rod 12 is driven to move downwards under the action of the air pressure difference between the second air cavity 1002 and the first air cavity 1001 by the sliding plug 11, the armature connected with the connecting rod 12 is enabled to tilt upwards to be separated from a contact, when current is introduced into a coil positioned below the armature, a, at the moment, the connecting rod 12 with the sliding plug 11 moves upwards along the inner wall of the armature resetting device 10, so that resetting and contact of the armature can be realized; however, due to the movement of the sliding plug 11 and the connecting rod 12, the gas in the first air cavity 1001 and the second air cavity 1002 can escape with the movement of many times, when the pressure difference between the first air cavity 1001 and the second air cavity 1002 is not within the normal range, it is indicated that the gas in the first air cavity 1001 and the second air cavity 1002 escapes to make the mechanism for resetting not meet the safety requirements, and then the mechanism for resetting is easy to be used continuously, and at this time, an alarm is required to remind the user to replace the relay, the armature resetting device 10 is a resetting mechanism designed on an outlet relay, the inner wall of the armature resetting device 10 is respectively provided with the electric plate group i 8 and the electric plate group ii 9 which are positioned in the first air cavity 1001 and the second air cavity 1002, the electric plate group i 8 and the electric plate group ii 9 are respectively arranged on the symmetrical inner walls of the armature resetting device 10 in pairs, the electric plate group i 8 and the electric plate group ii 9 are connected with the self-checking acquisition, pulse voltage is applied to two ends of an electric plate group I8 and an electric plate group II 9 in a first air cavity 1001 and a second air cavity 1002 through a self-detection acquisition module 201, so that gas is ionized, and the gas in the first air cavity 1001 and the second air cavity 1002 is conducted after the ionization, so that the current received by the self-detection acquisition module 201 is different, and after the ionization, electrons are neutralized into neutral charges; when the gas escapes, the volume is reduced, the density of the gas in the first air cavity 1001 and the second air cavity 1002 is reduced, the amount of ionized air ions is reduced, and the current collected by the self-test collection module 201 is reduced under the same voltage.

The self-checking acquisition module 201 comprises a power module 2010, a voltage adjustment module 2011 and a storage unit 2012, wherein the output end of the power module 2010 is electrically connected with the input end of the voltage adjustment module 2011, the output end of the voltage adjustment module 2011 is electrically connected with an electric plate group I8 and an electric plate group II 9 on one side respectively, the voltage adjustment module 2011 is used for adjusting the current passing through the electric plate group I8 and the electric plate group II 9, in one-time data acquisition, the voltage adjustment module 2011 needs to apply two times of voltage to the electric plate group I8 and the electric plate group II 9, breakdown voltage and normal voltage are used for ionizing gas, the normal voltage is used for electrifying the electric plate group I8 and the electric plate group II 9, and a circuit of an ionized gas passage is acquired to judge the ionization amount of the gas in the first gas cavity 1001 and the second gas cavity 1002 under a single pulse voltage, so as to calculate the volume difference of the gas in the first gas cavity 1001 and the second gas cavity 1002, therefore, whether the reset mechanism of the outlet relay in the digital relay is safe or not is judged, and the electric plate group I8 and the electric plate group II 9 on the other side are electrically connected to the input end of the storage unit 2012.

In the scheme, air is ionized by applying voltage to the electrode plate group I8 and the electrode plate group II 9, which has the defect of high energy consumption, the radioactive substances 13 are respectively placed in the first air cavity 1001 and the second air cavity 1002, the electrode plate group I8 and the electrode plate group II 9 are metal conductive sheets, and gas can be ionized by the radioactivity of the radioactive substances 13, but the radioactive substances 13 have continuity for the ionization of the gas, namely, the total number of electrons in the air in the first air cavity 1001 and the second air cavity 1002 is measured in the continuous radiation process of the ionized electrons to the radioactive substances 13; alternatively, a voltmeter having high accuracy may be used to directly measure the voltage difference between the first air cavity 1001 and the second air cavity 1002.

The information processing module 3 comprises a self-checking information processing unit 301, a control information processing unit 302 and a control unit 303, wherein the input end of the self-checking information processing unit 301 is electrically connected with the output end of the storage unit 2012, the input end of the control information processing unit 302 is electrically connected with the input end of the control acquisition module 202, the output ends of the self-checking information processing unit 301 and the control information processing unit 302 are both connected with the input end of the control unit 303, a delay is also connected between the self-checking information processing unit 301 and the control information processing unit 302, the self-checking information is processed firstly, then the control information is processed, when the processing result of the self-checking information processing unit 301 is 'no', the control information processing unit 302 does not process the control information, the control unit 303 transmits the information with the result of 'no' to the execution module 4, and the execution module 4 controls the outlet relay 5 and the alarm 6 to act, when the result of the self-inspection information processing unit 301 is yes, the control unit 303 waits for the processing result of the control information by the control information processing unit 302. The self-test information processing unit 301 includes a self-test information processor 3010, a current processing unit 3011, and a current difference calculation unit 3012, an input end of the self-test information processor 3010 is electrically connected to an output end of the storage unit 2012, an input end and an output end of the current processing unit 3011 are electrically connected to an output end of the self-test information processor 3010 and an input end of the current difference calculation unit 3012, an output end of the current difference calculation unit 3012 is electrically connected to an input end of the control unit 303, the self-test information processor 3010 decompresses data in the storage unit 2012 and transmits the decompressed data to the current processing unit 3011, the current is converted into a current value convenient to calculate through rectification, filtering and other processing of the current processing unit 3011, the current difference calculation unit 3012 calculates a difference value, when a difference between two paths of currents connected to the electrical board group i 8 and the electrical board group ii 9 is within a normal range, it indicates that the armature reset device 10 is safe, when the current difference exceeds the normal range, the armature resetting device 10 is unsafe; the self-checking information processing unit 301 receives and processes the information of the self-checking acquisition module 201, the control information processing unit 302 receives and processes the information of the control acquisition module 202, the processed results are collectively collected to the control unit 303, as long as the result of the self-checking information processing unit 301 is negative and indicates that the armature resetting device 10 is in an unsafe state, the result of the control unit 303 is negative, the control unit 303 transmits the information to the execution module 4, the execution module 4 comprises an execution processor 401 and a current controller 402, the input end of the execution processor 401 is electrically connected with the output end of the control unit 303, the output end of the execution processor 401 is electrically connected with the input end of the current controller 402, the output end of the current controller 402 is electrically connected with the output relay 5 and the input end of the alarm 6, when the information of the control unit 303 received by the execution processor 401 is negative, then the execution processor 401 respectively energizes the coils of the outlet relay 5 through the current controller 402, starts the outlet relay 5 to act, disconnects the voltage of the circuit, and simultaneously gives an alarm through the alarm 6.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.