CN202759367U - Explosion suppression type power module for electric actuator - Google Patents
Explosion suppression type power module for electric actuator Download PDFInfo
- Publication number
- CN202759367U CN202759367U CN 201220310038 CN201220310038U CN202759367U CN 202759367 U CN202759367 U CN 202759367U CN 201220310038 CN201220310038 CN 201220310038 CN 201220310038 U CN201220310038 U CN 201220310038U CN 202759367 U CN202759367 U CN 202759367U
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- Prior art keywords
- electric actuator
- flame
- power module
- type electric
- power model
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Abstract
The utility model provides an explosion suppression type power module for an electric actuator. The explosion suppression type power module comprises three circuit boards vertically distributed which are an upper circuit board, a middle circuit board and a lower circuit board. The three circuit boards are welded as a whole through pins. The outside of the three circuit boards is provided with a housing. A glue pouring encapsulated layer is arranged between the housing and the three circuit boards. The advantages and positive effects of the explosion suppression type power module are that: with the adoption of the abovementioned technical scheme, the assembling of the power module on the electric actuator is more simple; and the power module is simple in structure, convenient to maintain, low in processing cost, high in production efficiency, and low in failure rate, and has functions of explosion suppression and water resistance.
Description
Technical field
The utility model belongs to the industrial instruments technical field, especially relates to a kind of flame-proof type electric actuator power model.
Background technology
Electric operator is the terminal actuating equipment in the industrial process control system, its Main Function is: the control signal that control system is sent converts switching signal to, by actions such as control solid-state relay, directional contactor and motor positive and inverses, the position of final by-pass valve control or the position of other governor motions are widely used in the fields such as electric power, metallurgy, petrochemical industry, heat supply, cement, building materials, light textile, food.
In the prior art, electric actuator generally adopts the action of flame proof power model control electric actuator, the problem of its existence is: existing flame proof power model is open design, complex structure, be difficult for to install and without water-proof function, in use is easy to be damaged.
Summary of the invention
Problem to be solved in the utility model provides a kind of simple in structure, is easy to install the flame-proof type electric actuator power model, and use at the scene that especially is fit to the needs sealing.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of flame-proof type electric actuator power model, comprise three wiring boards that distribute up and down, be divided into upper layer circuit plate, middle level wiring board and lower sandwich circuit board, integrally welded by contact pin, the outside of described three wiring boards is provided with shell, is provided with the encapsulating encapsulated layer between described shell and three wiring boards.
Further, on the described upper layer circuit plate external terminal is set, is used for receiving system control signal and output signal.
Further, described external terminal is provided with ten.
Further, described middle level wiring board and lower sandwich circuit board are provided with a plurality of flame proof control turning circuits.
Further, described flame proof control turning circuit is to utilize optocoupler that control signal and output signal are carried out isolated controlling, and controls the conducting of two thyristors.
Further, described contact pin is long 33 millimeters.
Advantage and the good effect that the utlity model has are: owing to adopting technique scheme, make when being assembled on the electric actuator easier; And have simple in structurely, easy to maintenance, processing cost is low, production efficiency is high, the advantages such as flame proof water-proof function, failure rate is low are arranged.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is control turning circuit schematic diagram of the present utility model.
Among the figure:
1, upper layer circuit plate 2, middle level wiring board 3, lower sandwich circuit board
4, shell 5, external terminal
Embodiment
As shown in Figure 1,
A kind of flame-proof type electric actuator power model of the utility model control motor positive and inverse, comprise three wiring boards that distribute up and down, be divided into upper layer circuit plate 1, middle level wiring board 2 and lower sandwich circuit board 3, contact pin by long 33 millimeters is integrally welded, the outside of described three wiring boards is provided with shell 4, is provided with the encapsulating encapsulated layer between described shell 4 and three wiring boards; Ten external terminals 5 are set on the described upper layer circuit plate; Described middle level wiring board 2 and lower sandwich circuit board 3 are provided with two flame proof control turning circuits.
As shown in Figure 2, described flame proof control turning circuit is to utilize optocoupler that control signal and output signal are carried out isolated controlling, thereby controls the conducting of two thyristors.
The course of work of this example:
On three wiring boards, the contact pin with 33 millimeters long divides upper layer circuit plate 1, middle level wiring board 2 and lower sandwich circuit board 3 integrally welded three wiring boards again with circuit design, and is last, and integrally welded wiring board is put into shell 4 and encapsulating encapsulation;
The effect of ten external terminals 5 is respectively:
Two external terminal 5 input 5-12V forward control signals, the optocoupler U of control turning circuit carries out isolated controlling to control signal and output signal, and control the conducting of two thyristor Q, external terminal 5 order phase zero-power lines, external terminal 5 order phase motor zero lines, an external terminal 5 is by a common mode noise rejection inductance coil order phase power firestreak, and external terminal 5 motor forward terminals are controlled the motor forward;
Two external terminal 5 input 5-12V reverse control signals, the optocoupler U of control turning circuit carries out isolated controlling to control signal and output signal, and control the conducting of two thyristor Q, external terminal 5 order phase zero-power lines, external terminal 5 order phase motor zero lines, an external terminal 5 is by a common mode noise rejection inductance coil order phase power firestreak, and external terminal 5 order phase motor reversal terminals are controlled motor reversal.
Above an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (6)
1. flame-proof type electric actuator power model, it is characterized in that: comprise three wiring boards that distribute up and down, be divided into upper layer circuit plate (1), middle level wiring board (2) and lower sandwich circuit board (3), integrally welded by contact pin, the outside of described three wiring boards is provided with shell (4), is provided with the encapsulating encapsulated layer between described shell (4) and three wiring boards.
2. flame-proof type electric actuator power model according to claim 1 is characterized in that: external terminal (5) is set on the described upper layer circuit plate (1).
3. flame-proof type electric actuator power model according to claim 2, it is characterized in that: described external terminal (5) is provided with ten.
4. flame-proof type electric actuator power model according to claim 1 is characterized in that: described middle level wiring board (2) and lower sandwich circuit board (3) are provided with a plurality of flame proofs control turning circuits.
5. flame-proof type electric actuator power model according to claim 4 is characterized in that: described flame proof control turning circuit is to utilize optocoupler that control signal and output signal are carried out isolated controlling, and controls the conducting of two thyristors.
6. flame-proof type electric actuator power model according to claim 1 is characterized in that: long 33 millimeters of described contact pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310038 CN202759367U (en) | 2012-06-29 | 2012-06-29 | Explosion suppression type power module for electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310038 CN202759367U (en) | 2012-06-29 | 2012-06-29 | Explosion suppression type power module for electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202759367U true CN202759367U (en) | 2013-02-27 |
Family
ID=47738526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220310038 Expired - Fee Related CN202759367U (en) | 2012-06-29 | 2012-06-29 | Explosion suppression type power module for electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202759367U (en) |
-
2012
- 2012-06-29 CN CN 201220310038 patent/CN202759367U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150629 |
|
| EXPY | Termination of patent right or utility model |