CN212210485U

CN212210485U - Current impact prevention system

Info

Publication number: CN212210485U
Application number: CN202020870303.XU
Authority: CN
Inventors: 彭冰; 黄伟森; 杨楠菲
Original assignee: Hearing Maple Intelligent Technology Shenzhen Co ltd
Current assignee: Hearing Maple Intelligent Technology Shenzhen Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-12-22
Anticipated expiration: 2030-05-22

Abstract

The utility model relates to a prevent electric current and strike technical field, disclose a prevent electric current and strike system, include: a plurality of switch control end ION and with a plurality of heavy current module that switch control end ION is connected, heavy current module is by opto-coupler OCEP_nBidirectional silicon controlled rectifier SCR_nThe resistor unit and the heavy current load LOADn, and the optical coupler OCEP_nThe bidirectional silicon controlled rectifier SCR_nAnd the resistance unit is electrically connected with the heavy current load LOADn in sequence. The switch control end ION is connected with the heavy current module, and the opening and closing of the switch control end ION are reasonably controlled by matching with a software algorithm, so that the system can stably work.

Description

Current impact prevention system

Technical Field

The utility model relates to a prevent electric current and strike technical field, especially relate to a prevent electric current and strike system.

Background

At present, a plurality of large current modules exist in electrical equipment, and each large current module can generate current which is several times of the current in normal and stable work at the moment of conduction. If a plurality of heavy current modules are conducted simultaneously, the whole system can generate electricity power which is several times of that of normal and stable work at the starting moment, the system instant power can be caused to be far beyond the power borne by the system, current impact is caused, other modules are caused to work abnormally, or the electricity environment is greatly influenced.

Therefore, how to provide a current surge prevention system is a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in how to provide a prevent electric current impact system.

Therefore, according to a first aspect, an embodiment of the present invention discloses a current impact prevention system, including: a plurality of switch control end ION and with a plurality of heavy current module that switch control end ION is connected, heavy current module is by opto-coupler OCEP_nBidirectional silicon controlled rectifier SCR_nThe resistor unit and the heavy current load LOADn, and the optical coupler OCEP_nThe bidirectional silicon controlled rectifier SCR_nAnd the resistance unit is electrically connected with the heavy current load LOADn in sequence.

The utility model discloses further set up as, the resistance unit includes first resistance R_n-1A second resistor R_n-2And a third resistor R_n-3The first resistor R_n-1And one end of the optical coupler OCEP_nThe first resistor R_n-1And the other end of the same and the bidirectional thyristor SCR _n2 pin and a live line L, the second resistor R_n-2And one end of the optical coupler OCEP_n4 pins and the bidirectional thyristor SCR_nIs connected to the second resistor R_n-2And the other end of the same and the bidirectional thyristor SCR_nPin 1 of said high current load, pin 1 of said high current load, said third resistor R_n-3Is connected with the switch control terminal IOn, the third resistor R_n-3And the other end of the optical coupler OCEP_nIs connected with the 1 pin.

The utility model discloses further set up to, opto-coupler OCEP_nPin 2 is connected to the switch control terminal ground GND.

The utility model discloses further set up to, 2 feet and zero line N of heavy current load LOADn are connected.

The true bookWith a novel further arrangement, the optical coupler OCEP_nThe zero-crossing trigger optocoupler is used for reducing electromagnetic interference.

The utility model discloses further set up as, heavy current module is connected with the 220V alternating current.

The utility model discloses following beneficial effect has: the switch control end ION is connected with the heavy current module, and the opening and closing of the switch control end ION are reasonably controlled by matching with a software algorithm, so that the system can prevent current impact and can stably work.

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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 current surge protection system disclosed in this embodiment;

FIG. 2 is a schematic circuit diagram of a current surge prevention system disclosed in the present embodiment;

fig. 3 is a control flow chart of a current surge preventing system disclosed in the present embodiment.

Reference numerals: 1. a switch control terminal IOn; 2. and a high-current module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The embodiment of the utility model discloses prevent electric current impact system, as shown in figure 1 and figure 2, include: the high-current module 2 comprises a plurality of switch control ends ION1 and a plurality of high-current modules 2 connected with the switch control ends ION1, wherein each high-current module 2 comprises an optical coupler OCEPn, a bidirectional thyristor SCRn, a resistance unit and a high-current load LOADn, and the optical coupler OCEPn, the bidirectional thyristor SCRn and the resistance unit are sequentially and electrically connected with the high-current load LOADn. In particular implementations, n can be a positive integer greater than or equal to 2. When the IO control end is at a high level, the heavy current load is conducted to start working, otherwise, the heavy current load is cut off to stop working.

It should be noted that the switch control end IOn1 is connected to the large current module 2, and the opening and closing of the switch control end IOn is reasonably controlled by matching with a software algorithm, so that the system can prevent current impact, and can stably work.

As shown in fig. 1 and 2The resistance unit comprises a first resistor R_n-1A second resistor R_n-2And a third resistor R_n-3First resistance R_n-1One end of the first resistor R is connected with 6 pins of the optical coupler OCEPn_n-1The other end of the resistor is connected with a pin 2 of the bidirectional thyristor SCRn and a live wire L, and a second resistor R_n-2One end of the second resistor R is connected with the 4 pins of the optocoupler OCEPn and the 3 pins of the bidirectional thyristor SCRn_n-2The other end of the resistor is connected with a pin 1 of the bidirectional thyristor SCRn and a pin 1 of the heavy current load LOADn, and a third resistor R_n-3Is connected with the switch control terminal IOn, and a third resistor R_n-3The other end of the optical coupler is connected with a pin 1 of the optical coupler OCEPn.

As shown in fig. 2, pin 2 of the optocoupler OCEPn is connected to the switch control terminal ground GND.

As shown in fig. 2, the 2-pin of the large current load is connected to the neutral line N.

As shown in fig. 1 and 2, the optical coupler OCEPn is a zero-cross trigger optical coupler for reducing electromagnetic interference.

As shown in fig. 1 and 2, the high current module 2 is electrically connected to 220V ac.

The embodiment of the utility model discloses a prevent electric current impact system, as shown in FIG. 3, its software algorithm work flow is as follows:

a. the software acquires the total number of the large-current modules 2 which need to be operated by the current target, the maximum power of each large-current module 2 at the starting moment, the time from starting to normal stable working impact current and the maximum bearing power of the system.

b. Through the above information, the maximum number of the large current modules 2 that can be simultaneously turned on each time and the interval time are calculated.

c. And sequentially opening the large-current modules 2 according to the maximum number of the large-current modules 2 which can be simultaneously opened each time, waiting for the interval time to elapse, and continuing to open the subsequent modules until the large-current modules 2 of the whole system are completely started after the current module group enters the normal work.

The working principle is as follows: the switch control end ION1 is connected with the heavy current module 2, and the opening and closing of the switch control end ION is reasonably controlled by matching with a software algorithm, so that the system can prevent current impact and can stably work.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A current surge protection system, comprising: a plurality of switch control end ION and with a plurality of heavy current module that switch control end ION is connected, heavy current module is by opto-coupler OCEP_nBidirectional silicon controlled rectifier SCR_nThe resistor unit and the heavy current load LOADn, and the optical coupler OCEP_nThe bidirectional silicon controlled rectifier SCR_nAnd the resistance unit is electrically connected with the heavy current load LOADn in sequence.

2. The current surge protection system of claim 1, wherein the resistance unit comprises a first resistance R_n-1A second resistor R_n-2And a third resistor R_n-3The first resistor R_n-1And one end of the optical coupler OCEP_nThe first resistor R_n-1And the other end of the same and the bidirectional thyristor SCR_n2 pin and a live line L, the second resistor R_n-2And one end of the optical coupler OCEP_n4 pins and the bidirectional thyristor SCR_nIs connected to the second resistor R_n-2And the other end of the same and the bidirectional thyristor SCR_nPin 1 of said high current load, pin 1 of said high current load, said third resistor R_n-3Is connected with the switch control terminal IOn, the third resistor R_n-3And the other end of the optical coupler OCEP_nIs connected with the 1 pin.

3. The current surge prevention system of claim 2,characterized in that the optical coupler OCEP_nPin 2 is connected to the switch control terminal ground GND.

4. The current surge protection system of claim 1, wherein pin 2 of said high current load LOADn is connected to neutral N.

5. The current surge protection system of claim 1, wherein the optical coupler OCEP_nThe zero-crossing trigger optocoupler is used for reducing electromagnetic interference.

6. The current surge protection system of any of claims 1-5, wherein the high current module is electrically connected to 220 VAC.