CN215453405U

CN215453405U - Electric actuator control circuit board of two-wire potentiometer

Info

Publication number: CN215453405U
Application number: CN202121983324.3U
Authority: CN
Inventors: 张美霞
Original assignee: Tianjin Keteq Automation Control Technology Co ltd
Current assignee: Tianjin Keteq Automation Control Technology Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-07
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses an electric actuator control circuit board of a two-wire potentiometer, which comprises a heat dissipation frame, wherein a mounting frame is arranged at the top of the heat dissipation frame, two limiting blocks are fixedly arranged on two inner sides of the mounting frame, a circuit board main body is arranged in the mounting frame, two limiting grooves are formed in two sides of the circuit board main body, two movable grooves are formed in two sides of the mounting frame, the top of the mounting frame is rotatably connected with four movable plates, a mounting column is fixedly arranged at the bottom of one end of each of the four movable plates, and a spring is fixedly arranged at the top end of the inner part of the mounting column. Through this design, under the effect of activity groove, fly leaf, handle, erection column, spring, fixed subassembly, fixed slot, spacing groove, stopper to carry out convenient equipment and change to the circuit board main part, thereby it is convenient to bring for the maintenance in later stage, and improved staff's equipment effect, and avoided the user demand of staff to the instrument.

Description

Electric actuator control circuit board of two-wire potentiometer

Technical Field

The utility model belongs to the technical field of circuit boards, and particularly relates to an electric actuator control circuit board of a two-wire potentiometer.

Background

The valve is applied to a large number of electric valves in the heating, ventilating and air conditioning field, and the valves are all required to be driven by electric actuators. The electric actuator currently monitors the opening position of the valve, usually by means of a potentiometer. The potentiometer is a sliding resistor and is kept in synchronous operation with the valve through a set of transmission mechanism. When the valve is at different positions in the opening range, the potentiometer has corresponding resistance value. According to the resistance value, the control circuit board of the actuator can calculate the opening position of the valve. Commercially available potentiometers typically have three wires, the first of which is fixed and typically represents a minimum resistance value; the second cable is slidable and generates different resistance values at different positions; the third is fixed and typically represents the maximum resistance value.

In current designs, all three cables need to be connected to a control circuit board, which can operate properly. The problem with this design is that the circuit board must have sufficient space or there is no place to connect the three cables. Therefore, the circuit board is large in overall dimension, the circuit board protective shell is correspondingly large in dimension, the size of the whole actuator product is finally large, the existing circuit board is inconvenient to install, the assembling efficiency of workers is reduced, the heat dissipation effect of the circuit board is poor, and the problem of reduction of the service life of the circuit board is solved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the electric actuator control circuit board of the two-wire potentiometer, and solves the problems of inconvenient installation and poor heat dissipation effect of the existing circuit board.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an electric actuator control circuit board of two line potentiometers, includes the heat dissipation frame, the top of heat dissipation frame is provided with the mounting bracket, the inside both sides of mounting bracket are all fixed and are equipped with two stoppers, the inside of mounting bracket is provided with circuit board main part, two spacing grooves have all been seted up to the both sides of circuit board main part, two activity grooves have all been seted up to the both sides of mounting bracket, the top of mounting bracket is rotated and is connected with four fly leafs, four the equal fixed erection column that is equipped with in one end bottom of fly leaf, the fixed spring that is equipped with in inside top of erection column, the fixed subassembly that is equipped with of the other end of spring, and fixed subassembly and erection column are sliding connection, four fixed slots have been seted up at the top of circuit board main part, the top of circuit board main part is provided with first connector and second connector.

As a preferred technical scheme of the present invention, a heat dissipation plate is fixedly disposed inside the heat dissipation frame, a plurality of groups of through holes are disposed inside the heat dissipation plate, three protection covers are fixedly disposed inside the heat dissipation frame, and fans are disposed inside the three protection covers.

As a preferred technical scheme of the utility model, two positioning insertion blocks are fixedly arranged on both sides of the mounting frame, two positioning blocks are fixedly arranged on both sides of the heat dissipation frame, one side of each positioning block is in threaded connection with a fixing bolt, and the positioning insertion blocks are in insertion connection with the positioning blocks.

As a preferred technical scheme of the utility model, the top of the movable plate is provided with a handle, and the outer surface of the handle is provided with an anti-skidding sleeve.

As a preferred technical scheme of the utility model, the limiting groove and the limiting block are in sliding connection, and the limiting groove and the limiting block are arranged in a matched manner.

As a preferred technical scheme of the utility model, the bottom of the fixing component is arranged in a spherical shape, and the fixing groove is arranged in an arc shape.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. through the design, under the action of the movable groove, the movable plate, the handle, the mounting column, the spring, the fixing component, the fixing groove, the limiting groove and the limiting block, the circuit board main body can be conveniently assembled and replaced, so that convenience is brought to later maintenance, the assembling effect of workers is improved, and the use requirement of the workers on tools is avoided;

2. through the design, under the action of the heat dissipation plate, the heat dissipation holes, the protection cover and the fan, the circuit board main body is conveniently subjected to heat dissipation treatment, and the heat dissipation plate separates the fan from the circuit board main body, so that the influence of heat generated by heat dissipation of the fan on the circuit board main body is avoided, the double heat dissipation of the circuit board main body is realized, the heat dissipation effect is improved, and the service life of the circuit board main body is prolonged;

3. through set up two connectors on the circuit board to and change the potentiometer for two-wire, only need the circuit board of two cables, saved a cable than conventional design, circuit board overall dimension just can reduce like this, thereby the size of whole executor product also can become littleer, and miniaturized product can satisfy certain narrow and small application scenario in space, has still practiced thrift material cost and cost of transportation etc. simultaneously.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a second schematic perspective view of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;

fig. 4 is a schematic sectional perspective view of the mounting post of the present invention.

Wherein: 1. a heat dissipation frame; 2. a mounting frame; 3. positioning blocks; 4. positioning the insert block; 5. fixing the bolt; 6. a first connector; 7. a second connector; 8. a circuit board main body; 9. a movable groove; 10. a movable plate; 11. a handle; 12. mounting a column; 13. a spring; 14. a fixing assembly; 15. fixing grooves; 16. a limiting groove; 17. a limiting block; 18. a heat dissipation plate; 19. a through hole; 20. a protective cover; 21. a fan.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in figures 1-4, an electric actuator control circuit board of a two-wire potentiometer comprises a heat dissipation frame 1, a mounting frame 2 is arranged at the top of the heat dissipation frame 1, two limiting blocks 17 are fixedly arranged on two inner sides of the mounting frame 2, a circuit board main body 8 is arranged in the mounting frame 2, two limiting grooves 16 are respectively arranged on two sides of the circuit board main body 8, two movable grooves 9 are respectively arranged on two sides of the mounting frame 2, the top of the mounting frame 2 is rotatably connected with four movable plates 10, a mounting column 12 is fixedly arranged at the bottom of one end of each of the four movable plates 10, a spring 13 is fixedly arranged at the top end of the inner part of the mounting column 12, a fixing component 14 is fixedly arranged at the other end of the spring 13, the fixing component 14 is connected with the mounting column 12 in a sliding manner, the top of the circuit board main body 8 is provided with four fixing grooves 15, and the top of the circuit board main body 8 is provided with a first connector 6 and a second connector 7;

under the action of the double-wire potentiometer, the circuit board only needs two cables, one cable is saved compared with the conventional design, the appearance size of the circuit board can be reduced, the size of the whole actuator product can also be reduced, the miniaturized product can meet certain application occasions with narrow space, the material cost, the transportation cost and the like are saved, when the circuit board is installed, the circuit board main body 8 is placed in the installation frame 2 and is positioned through the limiting block 17, after the circuit board main body 8 is attached to the installation frame 2, the movable plate 10 drives the installation column 12 to rotate through rotating the movable plate 10, when the installation column 12 rotates, the fixing component 14 is driven, when the fixing component 14 is contacted with the circuit board main body 8, the fixing component 14 is pushed to be taken in the installation column 12, and when the movable plate 10 rotates, the fixing component 14 fixes the circuit board main body 8, under the action of elastic deformation of the spring 13, the spring 13 pushes the fixing component 14 to move, so that the fixing component 14 is clamped with the fixing groove 15, thereby realizing the fixed connection between the fixing component 14 and the circuit board main body 8, when the circuit board main body 8 is replaced and maintained, the movable plate 10 is moved, the movable plate 10 drives the fixing component 14 to move, so that the fixing component 14 is separated from the inside of the fixing groove 15, when the movable plate 10 is moved, the mounting column 12 passes through the inside of the movable groove 9, the movable plate 10 is prevented from being positioned right above the circuit board main body 8 and passes through the movable groove 9, so that the side surface of the circuit board main body 8 is shifted, the circuit board main body 8 is taken out from the inside of the mounting frame 2, so that the circuit board main body 8 can be conveniently assembled and replaced, convenience is brought to later maintenance, and the assembling effect of workers is improved, and avoids the use requirement of the tool by the staff.

In other embodiments, a heat dissipation plate 18 is fixedly arranged inside the heat dissipation frame 1, a plurality of groups of through holes 19 are formed inside the heat dissipation plate 18, three protection covers 20 are fixedly arranged inside the heat dissipation frame 1, and fans 21 are arranged inside the three protection covers 20; through the design, so as to carry out the heat dissipation processing to heat dissipation frame 1, and heat dissipation plate 18 separates fan 21 and circuit board main part 8, the heat that the heat dissipation of fan 21 produced has been avoided causing influence to circuit board main part 8, and under the radiating effect of heat dissipation plate 18, dispel the heat to circuit board main part 8 bottom, and the heat to heat dissipation plate 18 upper portion under the effect of through-hole 19 carries out the water conservancy diversion, thereby the heat of circuit board main part 8 bottom flows, thereby the dual heat dissipation of circuit board main part 8 has been realized, so as to improve the radiating effect, then the life of circuit board main part 8 has been improved.

In other embodiments, two positioning insertion blocks 4 are fixedly arranged on both sides of the mounting frame 2, two positioning blocks 3 are fixedly arranged on both sides of the heat dissipation frame 1, one side of each positioning block 3 is in threaded connection with a fixing bolt 5, and the positioning insertion blocks 4 are inserted into the positioning blocks 3; through the grafting of location inserted block 4 and location inserted block 4 to play the positioning action when installing heat dissipation frame 1 and mounting bracket 2, thereby improved the equipment effect of heat dissipation frame 1 and mounting bracket 2.

In other embodiments, the top of the movable plate 10 is provided with a handle 11, and the outer surface of the handle 11 is provided with an anti-slip sleeve; through setting up handle 11 to carry out convenient rotation to fly leaf 10, and through setting up the antiskid cover, so as to play the antiskid to handle 11 when rotating.

In other embodiments, the limiting groove 16 is slidably connected with the limiting block 17, and the limiting groove 16 and the limiting block 17 are arranged in a matching manner; through the sliding connection of the limiting groove 16 and the limiting block 17 and under the condition that the limiting groove 16 and the limiting block 17 are arranged properly, the circuit board main body 8 is limited and mounted, and therefore the mounting accuracy of the circuit board main body 8 is improved.

In other embodiments, the bottom of the fixing member 14 is spherical, and the fixing groove 15 is arc-shaped; through the spherical arrangement of the fixing component 14 and the arc arrangement of the fixing groove 15, the fixing component 14 slides in the fixing groove 15, so that the fixing component 14 and the fixing groove 15 can be conveniently separated and clamped when the movable plate 10 rotates.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an electric actuator control circuit board of two-wire potentiometer, includes heat dissipation frame (1), its characterized in that: the heat dissipation frame is characterized in that a mounting frame (2) is arranged at the top of the heat dissipation frame (1), two limiting blocks (17) are fixedly arranged on two sides of the interior of the mounting frame (2), a circuit board main body (8) is arranged in the interior of the mounting frame (2), two limiting grooves (16) are formed in two sides of the circuit board main body (8), two movable grooves (9) are formed in two sides of the mounting frame (2), four movable plates (10) are rotatably connected to the top of the mounting frame (2), a mounting column (12) is fixedly arranged at the bottom of one end of each of the four movable plates (10), a spring (13) is fixedly arranged at the top end of the interior of the mounting column (12), a fixing component (14) is fixedly arranged at the other end of the spring (13), the fixing component (14) is in sliding connection with the mounting column (12), four fixing grooves (15) are formed in the top of the circuit board (8), the top of circuit board main part (8) is provided with first connector (6) and second connector (7).

2. The two-wire potentiometer electric actuator control circuit board according to claim 1, wherein: the fixed heating panel (18) that is equipped with in inside of heat dissipation frame (1), multiunit through-hole (19) have been seted up to the inside of heating panel (18), the fixed three safety cover (20) that are equipped with in inside of heat dissipation frame (1), it is three the inside of safety cover (20) all is equipped with fan (21).

3. The two-wire potentiometer electric actuator control circuit board according to claim 1, wherein: the both sides of mounting bracket (2) are all fixed and are equipped with two location inserted blocks (4), the both sides of heat dissipation frame (1) are all fixed and are equipped with two locating pieces (3), one side threaded connection of locating piece (3) has fixing bolt (5), and location inserted block (4) are pegged graft with locating piece (3).

4. The two-wire potentiometer electric actuator control circuit board according to claim 1, wherein: the top of the movable plate (10) is provided with a handle (11), and the outer surface of the handle (11) is provided with an anti-skid sleeve.

5. The two-wire potentiometer electric actuator control circuit board according to claim 1, wherein: the limiting groove (16) is in sliding connection with the limiting block (17), and the limiting groove (16) and the limiting block (17) are matched.

6. The two-wire potentiometer electric actuator control circuit board according to claim 1, wherein: the bottom of the fixing component (14) is arranged in a spherical shape, and the fixing groove (15) is arranged in an arc shape.