High-precision electrical automation DCS control equipment

Abstract

The utility model relates to the technical field of control equipment, in particular to high-precision electrical automation DCS control equipment which comprises a control box body, a back plate and a board card are arranged in the control box body, a plurality of bearing plates are arranged in the control box body, the bearing plates are used for bearing the board card, and the board card is arranged in the control box body. The back plate is provided with an insertion groove for the board card to be inserted, a matched connection part is arranged in the insertion groove, the insertion part is provided with a conductive connection part corresponding to the matched connection part, and the board card is relatively positioned through a guide connection mechanism arranged on the bearing plate. According to the invention, the board card can stably move towards the backboard according to the preset track through the guiding connection mechanism, thereby effectively avoiding the offset and shaking of the board card when the board card is inserted, building a foundation for the precise butt joint of the conductive connection part and the matching connection part, improving the stability and reliability of the connection, and reducing the fault probability of DCS control equipment caused by the unstable connection.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of DCS control equipment, and in particular to high-precision electrical automation DCS control equipment. BACKGROUND

[0002] The high-precision electrical automation DCS control equipment is an advanced device for industrial automation control, mainly utilizes geographically distributed control loops to work through the cooperative operation of distributed control elements. Each control element, such as a computer, a sensor and a controller, performs a specific function, such as data collection, storage or process control, for example, a plurality of local controllers are arranged in a factory, which are connected through a high-speed communication network, and although they work independently, they are centrally supervised and controlled by an operator, and different control elements are connected to a server and an operation station on the local network, so that real-time monitoring and control of the whole system are realized.

[0003] At present, the board card and the backboard in the DCS control device are connected in a simple straight insertion mode, and lack effective guiding and positioning devices. In the plugging process, it is difficult for the operator to ensure that the board card is absolutely vertically and accurately inserted into the backboard slot, and a slight deviation will cause uneven force on the pins, for example, the pin spacing of some board cards is small, and when the insertion angle deviates, individual pins may first contact the edge of the slot instead of smoothly falling into the corresponding position. This unstable contact is easy to cause the pins to bend, and even if the position of the board card is adjusted later, the deformed pins are also difficult to achieve ideal stable contact. Unlike the PCL control system, the DCS control system can be hot-plugged, and once the pins are not in stable contact due to the plugging of the board card, instantaneous electrical interference is easy to affect the display stability of the acquisition device, causing signal transmission interruption or distortion, and unable to accurately reflect the real situation on site.

[0004] Therefore, the high-precision electrical automation DCS control equipment is proposed to solve the above problems. CONTENT OF THE INVENTION

[0005] The application provides the high-precision electrical automation DCS control equipment to ensure stable contact of the pins during hot plugging of the board card and reduce plugging interference.

[0006] The above technical purpose of the application is realized through the following technical scheme:

[0007] The utility model relates to a high-precision electrical automation DCS control equipment, including control box, the inside of control box is equipped with backplate and board card, the inside of control box is equipped with a plurality of support plate, the support plate is used for supporting the board card, the backplate is equipped with the slot for the board card insertion, the inside of slot is equipped with cooperation connection department, the insertion part is equipped with the electrically conductive connection part corresponding with cooperation connection department, and the board card realizes relative positioning through the guide connection mechanism of setting on the support plate, when the board card slides to the predetermined position relative to the backplate, the electrically conductive connection part forms the stable electrical connection with cooperation connection department, to ensure the reliable transmission of signal and the stable operation of system.

[0008] Through adopting the technical scheme, the board card can move to the backplate direction along the preset trajectory smoothly, effectively avoids the deviation and shaking when the board card is inserted, and reduces the failure probability caused by unstable connection of the DCS control equipment.

[0009] Optionally, the cross section of the insertion part and the slot is triangular, and the electrically conductive connection part and the cooperation connection part are in contact when the insertion part is tightly inserted into the slot.

[0010] Through the above technical scheme, the stability of the board card during insertion is ensured.

[0011] Optionally, the cross section of the insertion part and the slot is rectangular, and the electrically conductive connection part and the cooperation connection part are in contact when the insertion part is tightly inserted into the slot.

[0012] Through the above technical scheme, the four right angles of the rectangle and the cooperation connection part form a plurality of stable support points, which can effectively resist the vibration and impact from the outside.

[0013] Optionally, the guide connection mechanism is a guide sliding groove opened on the support plate, and the guide sliding groove and the slot are one-to-one corresponding and used for guiding the board card to reach the predetermined connection position smoothly.

[0014] Through the above technical scheme, the board card can be guided to move to the cooperation connection part smoothly.

[0015] Optionally, the opening end of the guide sliding groove is provided with an expanding portion, and the width of the expanding portion gradually decreases from the opening end of the guide sliding groove inwardly.

[0016] Through the above technical scheme, the board card is easier to enter the guide sliding groove, and the collision risk of the board card is reduced.

[0017] Optionally, the utility model further includes a positioning piece for positioning the board card when the board card is installed on the backplate, and the positioning piece is an elastic spring sheet arranged on the guide connection mechanism and arched upwardly.

[0018] By adopting the technical scheme, the board card is limited by the upward protruding state of the elastic spring sheet after the board card is inserted, so that the board card is installed more stably.

[0019] Optionally, the bottom end edge of the board card is provided with a chamfered portion.

[0020] By adopting the technical scheme, the board card can be more smoothly contacted and compressed with the elastic spring sheet, avoiding the jamming or jumping phenomenon caused by the sharp corners of the board card when resisting the elastic spring sheet, so that the sliding process of the board card is more smooth.

[0021] Optionally, the inner wall of the slot is provided with an elastic buffer portion, which is used for buffering when the board card is installed.

[0022] By adopting the technical scheme, the impact force on the back plate is reduced when the board card is installed.

[0023] By the guiding connection mechanism, the board card can move smoothly to the back plate according to the preset trajectory, effectively avoiding the deviation and shaking when the board card is inserted, laying a solid foundation for the accurate butt joint of the conductive connection portion and the matching connection portion, improving the stability and reliability of the connection, and reducing the failure probability of the DCS control equipment caused by unstable connection.

[0024] By setting the flared portion at the opening of the guiding connection mechanism, the alignment difficulty of the initial stage of inserting the board card into the back plate is reduced, the insertion guidance is enhanced, and the risk of collision damage of the back plate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the isometric structure schematic diagram provided by the present application;

[0026] Figure 2 is the first embodiment structure schematic diagram provided by the present application;

[0027] Figure 3 is the second embodiment structure schematic diagram provided by the present application;

[0028] Figure 4 is the structure schematic diagram when the slot is separated from the insertion portion provided by the present application;

[0029] Figure 5 is the board card three-dimensional structure schematic diagram provided by the present application.

[0030] Explanation of reference numerals: 1, control box; 11, supporting plate; 2, back plate; 21, slot; 22, matching connection portion; 3, board card; 31, insertion portion; 32, conductive connection portion; 4, guiding chute; 41, flared portion; 5, elastic spring sheet; 6, chamfered portion; 7, elastic buffer portion. DETAILED DESCRIPTION

[0031] The application will be further described in detail below with reference to the accompanying drawings.

[0032] The embodiment of the application discloses a high-precision electrical automation DCS control equipment, Figures 1 to 5 , comprising a control box body 1, a back plate 2 and a board card 3 with different functions are arranged in the control box body 1, when the board card 3 of the DCS control equipment is hot-plugged, due to the lack of stable guidance between the board card 3 and the back plate 2, when the board card 3 is plugged, the pins on the board card 3 cannot be accurately aligned with the slots 21 on the back plate 2, and the existing pins are needle-shaped, etc., when the board card 3 is inserted, once the board card 3 is inserted obliquely, etc., the pins are easily damaged or bent, at this time, the pin contact is unstable, which can cause instantaneous resistance change, cause signal transmission interruption or distortion, and data fluctuation occurs, for example, in chemical production, high-precision collection of parameters such as temperature and pressure depends on stable signal transmission. If the board card 3 is plugged to cause interference, the collected temperature data may deviate too much, mislead the operator to judge the production process, and then affect the product quality, in the power transmission system, the motor needs to be started and stopped frequently, and accurate control signals are needed. If the board card 3 is plugged to cause control signal disorder, the motor may fail to start or abnormally stop, and in severe cases, the motor equipment may be damaged, and the stability of power supply is affected, therefore, the utility model aims at providing a device which can ensure stable contact of the pins of the board card 3, reduce plugging interference, and then protect the precision of the collection equipment, specifically, a plurality of supporting plates 11 for supporting the board card 3 are arranged in the control box body 1, the slots 21 for inserting the insertion part 31 on the board card 3 are formed in the back plate 2, the inside of the slot 21 is provided with a matching connecting part 22, the conductive connecting part 32 corresponding to the matching connecting part 22 is arranged on the insertion part 31, and the conductive connecting part 32 and the matching connecting part 22 are both made of planar metal conductive material as pins, high-speed and stable data transmission is realized, the board card 3 is relatively positioned through the guide connecting mechanism arranged on the supporting plate 11, the board card 3 can smoothly slide relative to the back plate 2 along the preset track, the position precision and motion stability of the board card 3 during the sliding process are ensured, the conductive connecting part 32 and the matching connecting part 22 form stable electrical connection, so as to ensure reliable signal transmission and stable operation of the system, through the stable sliding contact mode, the electrical connection between the board card 3 and the back plate 2 is more reliable, when used for connecting various sensors, the analog signals (such as temperature, pressure, flow, etc.) collected by the sensors can be accurately transmitted to the board card 3 for processing, signal interference and loss caused by unstable connection are reduced, the precision of the collected data is greatly improved, and the failure probability of the DCS control equipment caused by unstable connection is reduced.

[0033] Reference Figure 2As shown in the first embodiment provided by the utility model, the cross section of the insertion part 31 and the slot 21 is triangular, when the insertion part 31 is inserted into the slot 21, the conductive connecting part 32 contacts with the matching connecting part 22, realizing electrical connection, when the outer wall of the insertion part 31 contacts with the inner wall of the slot 21, the triangular structure can evenly disperse stress to three edges, this characteristic makes the pressure borne by each part of the conductive connecting part 32 relatively balanced when it is tightly matched with the matching connecting part 22, reducing damage or deformation caused by local stress concentration, thereby prolonging the service life of the pin and the slot 21.

[0034] Reference Figure 3 As shown in the second embodiment provided by the utility model, the cross section of the insertion part 31 and the slot 21 is rectangular, when the insertion part 31 is tightly inserted into the slot 21, the conductive connecting part 32 contacts with the matching connecting part 22, when the quadrilateral insertion part 31 enters into the slot 21, three edges contact with the inner wall of the slot 21, which can provide better stability, ensure that good electrical contact is always maintained, avoid failure caused by looseness or poor contact, avoid left and right shaking of the backboard 2, compared with the triangular design, the stability effect is better.

[0035] Reference Figure 2 The guiding connecting mechanism is a guide sliding groove 4 opened on the supporting plate 11, and the guide sliding groove 4 corresponds to the slot 21 one by one, guiding the board card 3 to slide stably along the guide sliding groove 4 to the predetermined connecting position in the slot 21, when the board card 3 slides along the guide sliding groove 4 to drive the insertion part 31 to enter into the slot 21, the matching connecting part 22 and the conductive connecting part 32 stably contact, constructing a stable electrical connection path, guaranteeing the continuity and reliability of signal transmission.

[0036] Reference Figure 2 In order to facilitate the connection of the board card 3 and the guiding connecting mechanism, the opening end of the guide sliding groove 4 is provided with an expanding part 41, the width of the expanding part 41 gradually decreases from the opening end of the guide sliding groove 4 inward, that is, in the shape of "eight", the expanding part 41 is like a wide "entry guide", providing a wider entering space for the board card 3, reducing the alignment difficulty in the initial stage of inserting the board card 3 into the backboard 2, when the operator approaches the backboard 2 with the board card 3, even if there is a certain angle deviation, the board card 3 can also more easily enter the guiding connecting mechanism, and then smoothly slide into the final position, effectively reducing the insertion time and operation complexity, improving the assembly efficiency.

[0037] Reference Figure 2Further comprising a positioning member for positioning the board card 3 when the board card 3 is installed on the backboard 2, the positioning member is an elastic spring sheet 5 arranged on the guiding connecting mechanism and arched upward, when the board card 3 is installed in place, the elastic spring sheet 5 will be arched upward without receiving the downward pressing force of the board card 3, and limit the board card 3 from the rear side, avoid the insertion part 31 from the slot 21 to be loose, to ensure the stable connection of the matching connecting part 22 and the conductive connecting part 32.

[0038] With reference to Figure 5 The bottom end edge of the board card 3 is provided with a chamfered part 6, when the board card 3 slides and is pressed by the elastic spring sheet 5, the round chamfered part 6 gradually increases the contact area between the board card 3 and the elastic spring sheet 5, instead of sudden point contact or line contact, thereby reducing the contact stress, which helps to prevent the elastic spring sheet 5 from being deformed, fatigued or even damaged due to excessive local stress, prolongs the service life of the elastic spring sheet 5, and avoids the jamming or jumping phenomenon caused by the sharp corners of the board card 3 when the sharp corners of the board card 3 are in contact with the elastic spring sheet 5, so that the sliding process of the board card 3 is more smooth.

[0039] With reference to Figure 3 The inner wall of the slot 21 is provided with an elastic buffer part 7, the elastic buffer part 7 is used for buffering when the board card 3 is installed, the elastic buffer part 7 can be made of elastic materials such as rubber or silicone, so that the insertion part 31 first contacts the elastic buffer part 7 when the board card 3 is installed, reducing the impact force on the backboard 2, and playing a buffering role.

[0040] The specific embodiment is only an explanation of the application, and is not a limitation of the application, and those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the application, they are protected by the patent law.

Claims

1. A high-precision electrical automation DCS control device, comprising a control box (1), wherein the control box (1) is provided with a back plate (2) and circuit boards (3) inside, characterized in that: The control box (1) is provided with multiple support plates (11) inside. The support plates (11) are used to support the board (3). The board (3) is provided with an insertion part (31). The back plate (2) is provided with a slot (21) for inserting the insertion part (31). The slot (21) is provided with a mating connection part (22) inside. The insertion part (31) is provided with a conductive connection part (32) corresponding to the mating connection part (22). The board (3) is positioned relative to the support plate (11) by a guide connection mechanism. When the board (3) slides relative to the back plate (2) to a predetermined position, the conductive connection part (32) and the mating connection part (22) form a stable electrical connection to ensure reliable signal transmission and stable operation of the system.

2. The high-precision electrical automation DCS control equipment according to claim 1, characterized in that: The cross-section of the insertion part (31) and the slot (21) is triangular. When the insertion part (31) is tightly inserted into the slot (21), the conductive connection part (32) contacts the mating connection part (22).

3. The high-precision electrical automation DCS control equipment according to claim 1, characterized in that: The cross-section of the insertion part (31) and the slot (21) is rectangular. When the insertion part (31) is tightly inserted into the slot (21), the conductive connection part (32) contacts the mating connection part (22).

4. The high-precision electrical automation DCS control equipment according to claim 1, characterized in that: The guiding connection mechanism is a guide groove (4) opened on the support plate (11). The guide groove (4) corresponds one-to-one with the slot (21) and is used to guide the plate (3) to smoothly reach the predetermined connection position.

5. A high-precision electrical automation DCS control device according to claim 4, characterized in that: The guide groove (4) has a flared end (41) at its opening end, and the width of the flared end (41) gradually decreases from the opening end of the guide groove (4) inward.

6. A high-precision electrical automation DCS control device according to claim 1, characterized in that: It also includes a positioning element for positioning the board (3) when the board (3) is installed on the back plate (2), the positioning element being an upwardly arched elastic spring (5) provided on the guide connection mechanism.

7. A high-precision electrical automation DCS control device according to claim 1, characterized in that: The bottom edge of the board (3) is provided with a chamfer (6).

8. A high-precision electrical automation DCS control device according to claim 1, characterized in that: The inner wall of the slot (21) is provided with an elastic buffer (7), which is used to buffer the board (3) during installation.

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