A cabinet terminal block assembly and a DCS unit cabinet

Abstract

The present invention relates to the technical field of terminal blocks, and particularly relates to a cabinet terminal block assembly and a DCS unit cabinet; it includes a terminal block body and a number of connection cavities provided on the terminal block body. The connection cavity is divided into two parts by a T-shaped partition member; a driving fixed plate is horizontally provided in the connection cavities separated on both sides. A dust-proof cover is fitted on the upper side of the driving fixed plate, and the dust-proof cover is rotationally fitted with the connection cavity; a conductive sheet assembly for electrically connecting the cables on both sides is provided at the bottom of the connection cavity; a linkage locking assembly is provided on the driving fixed plate, and the rotating part of the dust-proof cover is in contact and fit with the upper side of the linkage locking assembly; the lower side of the linkage locking assembly is used to press the connection terminal of the cable against the conductive sheet assembly; the present invention solves the technical problem of how to achieve the rapid connection of the terminal block and the connection terminal of the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of terminal blocks, and in particular to a cabinet terminal block assembly and a DCS unit cabinet. Background Art

[0002] A wiring terminal is a mechanical and electrical product accessory used to achieve electrical connection. Figure 1 The structure of an existing voltage terminal block is shown; the terminal block includes a body and a locking terminal. The body is provided with a wire insertion hole. After the connection terminal of the cable is inserted into the wire insertion hole, the connection terminal of the cable is located directly below the locking terminal; the terminal is tightened manually to press the connection terminal of the cable; for the above connection method of the voltage terminal block, it is necessary to manually open and then tighten each terminal.

[0003] Therefore, the problem existing in the prior art is: how to achieve the quick connection of the terminal block and the connection terminal of the cable. Summary of the Invention

[0004] The present invention provides a cabinet terminal block assembly and a DCS unit cabinet, aiming to solve the problem of how to achieve the quick connection of the terminal block and the connection terminal of the cable.

[0005] The technical solution used in the present invention is as follows:

[0006] In a first aspect of the present application, a cabinet terminal block assembly is proposed, which includes a terminal block body and a plurality of connection cavities provided on the terminal block body. The connection cavity is divided into two parts by a T-shaped partition; a driving fixed plate is horizontally arranged in the connection cavities separated on both sides. A dust cover is fitted on the upper side of the driving fixed plate, and the dust cover is rotationally fitted with the connection cavity; a conductive sheet assembly for electrically connecting the cables on both sides is provided at the bottom of the connection cavity; a linkage locking assembly is provided on the driving fixed plate, and the rotating part of the dust cover is in contact and fit with the upper side of the linkage locking assembly; the lower side of the linkage locking assembly is used to press the connection terminal of the cable against the conductive sheet assembly; when the dust cover is opened, the pressing part of the dust cover presses the upper side of the linkage locking assembly, and the lower side of the linkage locking assembly is separated from the conductive sheet assembly; when the dust cover is closed, the lower side of the linkage locking assembly moves towards the conductive sheet assembly to press.

[0007] Furthermore, the linkage locking assembly includes a guiding cavity fixed to the driving fixing plate and a pressing cavity slidably fitted within the guiding cavity; a guiding ring is provided at the inner center of the guiding cavity, and a locking driving column is slidably fitted within the guiding ring; the upper side of the locking driving column extends out of the guiding cavity and is fixed to the pressing ring; the pressing ring is in contact and cooperation with the extrusion part of the dust cover; the lower side of the locking driving column extends out of the guiding ring and is fixed to the first spring plate; a second spring plate corresponding to the first spring plate is provided at the inner center of the pressing cavity; a pressing spring is fitted between the first spring plate and the second spring plate; a driving chute inclined upward to the right is formed on the locking driving column, and the locking driving member is slidably fitted within the driving chute; a transverse movement chute is formed through the guiding ring, and the locking driving member is slidably fitted within the transverse movement chute; an inclined sliding plate corresponding to the locking driving member is provided within the pressing cavity, and both sides of the locking driving member are in contact and cooperation with the inclined sliding plate.

[0008] Furthermore, main air flow channels are formed on both sides of the terminal block body, and the main air flow channels penetrate through the terminal block body and the T-shaped partition member; branch air flow channels communicating with the main air flow channels are provided on both sides of the T-shaped partition member, and the branch air flow channels penetrate through the vertical side of the T-shaped partition member and extend into the driving fixing plate; the branch air flow channels within the driving fixing plate communicate with the branch air flow channels, and the branch air flow channels extend downward out of the driving fixing plate for blowing air to the space below the driving fixing plate and where the conductive sheet assembly is located.

[0009] Furthermore, the branch air flow channels extend upward out of the driving fixing plate, and an air curtain channel with an L-shaped cross-section is formed within the dust cover. One side of the air curtain channel communicates with the lower end of the horizontal side of the dust cover, and the other side of the air curtain channel communicates with the wire groove; the branch air flow channels are communicated with the air curtain channel through connecting hoses; by blowing air into the air curtain channel within the dust cover through the upper branch air flow channels, an air curtain isolation is formed at the wire groove; the lower branch air flow channels blow air to the lower side of the driving fixing plate, and then continuously blow air to the outside of the air curtain, so that a positive pressure environment is formed in the closed space relative to the environment outside the air curtain.

[0010] Furthermore, internal thread structures are formed on the main air flow channels on both sides of the terminal block body, and blocking plugs are fitted on the internal thread structures for blocking both ends of the main air flow channels.

[0011] Furthermore, the blocking plug includes a commutation cavity and commutation driving pieces embedded on both sides of the terminal block body. External thread connection ports are provided on both sides of the commutation cavity; the external thread connection ports of the commutation cavity are used for cooperation with the internal thread structures on both sides of the terminal block body; a porous plate is provided within the commutation cavity, and a hole-shaped structure is formed at the outer edge of the porous plate, and a rubber backing plate is provided on the porous plate; a commutation driven piece is slidably fitted within the commutation cavity, and a channel is formed in the middle of the commutation driven piece; the commutation driving pieces are used for adsorbing the commutation driven piece to achieve commutation.

[0012] Further, the conductive sheet assembly is composed of two layers of copper sheets stacked up and down. The lower layer is a flat connecting conductive sheet, and the upper layer is a fixed conductive sheet used for contacting and conducting with the cable terminal.

[0013] Further, the connecting conductive sheet and the fixed conductive sheet are integrally formed directly and embedded in the connecting cavity of the terminal block body.

[0014] Further, the fixed conductive sheet is embedded in the connecting cavity of the terminal block body. A switch cavity is opened at the bottom of the terminal block body. A partition board is provided in the switch cavity, and the partition board divides the switch cavity into small chambers corresponding to the connecting cavity. A sub-chamber board is horizontally provided in the small chamber. A clutch push rod is provided on the sub-chamber board. The push head of the clutch push rod is fixed to the lower side of the insulating connecting piece. The connecting conductive sheet is embedded on the upper side of the insulating connecting piece, and the connecting conductive sheet extends beyond the insulating connecting piece. A connecting groove is opened on the upper side of the switch cavity.

[0015] In the second aspect of the present application, a DCS unit cabinet is proposed, including the cabinet terminal block assembly in any of the above embodiments and the DCS unit cabinet body, and the cabinet terminal block assembly is installed inside the DCS unit cabinet body.

[0016] The beneficial effects achieved by the present invention are as follows: When wiring, hold the flip plate and lift the dust cover upward. The extrusion part of the dust cover rotates 90 degrees, and the lower surface of the extrusion part presses the linkage locking component, forcing the lower side of the linkage locking component to separate from the conductive sheet assembly. At this time, the connection terminal of the cable can be inserted into the accommodating area of the connecting cavity. When the dust cover is buckled downward, the pressure on the linkage locking component by the extrusion part is released, and the lower side of the linkage locking component moves toward the conductive sheet assembly side to press the cable terminal. At the same time, the two-side cables are electrically conducted through the conductive sheet assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the existing voltage terminal block of the present invention.

[0018] Figure 2 is a schematic structural diagram of the cabinet terminal block assembly of the present invention.

[0019] Figure 3 is a schematic structural diagram of the inside of the connecting cavity of the present invention.

[0020] Figure 4 is a schematic structural diagram of the dust cover of the present invention.

[0021] Figure 5 is a schematic structural diagram of the linkage locking component of the present invention.

[0022] Figure 6 is a schematic sectional structural diagram of the linkage locking component of the present invention.

[0023] Figure 7 is a schematic diagram of the retraction of the linkage locking component of the present invention.

[0024] Figure 8 It is a schematic diagram of the main air flow channel structure of the present invention.

[0025] Figure 9 It is a schematic diagram of the branch air flow channel structure of the present invention.

[0026] Figure 10 It is a schematic diagram of the air curtain channel structure of the present invention.

[0027] Figure 11 It is a schematic diagram of the first embodiment structure of the barrier plug of the present invention.

[0028] Figure 12 It is a schematic diagram of the second embodiment structure of the barrier plug of the present invention Figure 1 .

[0029] Figure 13 It is a schematic diagram of the second embodiment structure of the barrier plug of the present invention Figure 2 .

[0030] Figure 14 It is a cross-sectional view of the internal structure of the switch cavity of the present invention Figure 1 .

[0031] Figure 15 It is a cross-sectional view of the internal structure of the switch cavity of the present invention Figure 2 .

[0032] Figure 16 It is a three-dimensional view of the internal structure of the switch cavity of the present invention.

[0033] Figure 17 It is a schematic diagram of the DCS unit cabinet structure of the present invention.

[0034] In the figure, 1 is the terminal block body; 2 is the connection cavity; 3 is the T-shaped partition; 4 is the driving fixed plate; 5 is the dust cover; 6 is the dust-proof rubber; 7 is the extrusion part; 8 is the wire groove; 9 is the turning connection plate; 10 is the magnet; 11 is the attracting piece; 12 is the guiding cavity; 13 is the pressing cavity; 14 is the guiding ring; 15 is the locking driving column; 16 is the pressing ring; 17 is the first spring clamping plate; 18 is the second spring clamping plate; 19 is the pressing spring; 20 is the anti-disengagement column; 21 is the driving chute; 22 is the locking driving part; 23 is the transverse movement chute; 24 is the inclined sliding plate; 25 is the main air flow channel; 26 is the branch air flow channel; 27 is the branch air flow channel; 28 is the air curtain channel; 29 is the connecting hose; 30 is the blocking plug; 31 is the commutation cavity; 32 is the commutation driving piece; 33 is the perforated plate; 34 is the commutation driven piece; 35 is the rubber ring; 36 is the rubber backing plate; 37 is the connecting conductive sheet; 38 is the fixed conductive sheet; 39 is the switch cavity; 40 is the partition; 41 is the sub-cavity plate; 42 is the clutch push rod; 43 is the insulating connecting piece; 44 is the connecting groove; 45 is the arc extinguishing guide shaft; 46 is the arc extinguishing plate; 47 is the arc striking column; 48 is the rope channel; 49 is the arc striking driving spring; 50 is the connecting rope; 51 is the DCS unit cabinet body. Detailed implementation mode

[0035] To facilitate the understanding of those skilled in the art of the present invention, the following describes the specific implementation mode of the present invention with reference to the drawings.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components; for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0037] As Figure 2-3As shown in the figure, the present invention provides a cabinet terminal block assembly, including a terminal block body 1 made of a long strip of insulating material, on the surface of which a plurality of connection cavities 2 with rectangular cross-sections are opened along the length direction (it can be multiple, six are taken as an example in this application); a T-shaped partition member 3 is vertically fixed in the middle of each connection cavity 2, and the width of the top horizontal plate of the T-shaped partition member 3 is greater than that of the bottom vertical plate, dividing the connection cavity 2 into left and right symmetric partition regions; driving fixing plates 4 are horizontally installed in the partition regions on both sides of the connection cavity 2, and the driving fixing plates 4 are non-metallic structures made of polyvinyl chloride, and both ends thereof are embedded in the card slots on the inner wall of the connection cavity 2 to achieve fixation; a dust-proof cover 5 is matched with the upper side of the driving fixing plate 4, and the dust-proof cover 5 is in the shape of an L-shaped plate, one end of which is rotatably connected to the connection cavity 2 through a pin shaft, and the other end of the dust-proof cover 5 extends to the bottom of the connection cavity 2; a dust-proof rubber 6 is bonded to the side of the rotation matching part of the dust-proof cover 5 and the T-shaped partition member 3; as Figure 4 shown, a cam-shaped extrusion part 7 is provided on the side of the dust-proof cover 5 where it is rotatably connected to the connection cavity 2, a semi-circular wire groove 8 is opened at the other end of the dust-proof cover 5, and a turning plate 9 is provided on the outer edge of the lower side of the dust-proof cover 5, and the turning plate 9 extends beyond the side of the terminal block body 1, which is convenient for holding and lifting the dust-proof cover 5; as Figure 3-4 shown, a magnet 10 is provided on the side of the driving fixing plate 4, and a suction sheet 11 corresponding to the magnet 10 is provided on the inner side of the dust-proof cover 5. When the dust-proof cover 5 is closed, the magnet 10 attracts the suction sheet 11, and the dust-proof cover 5 covers the connection cavity 2 for dust-proofing, and is used for wiring operation when opened; a conductive sheet assembly is embedded at the bottom of the connection cavity 2, and the conductive sheet assembly is used to electrically connect the two-side cables; a linkage locking assembly is arranged through the middle of the driving fixing plate 4; the extrusion part 7 of the dust-proof cover 5 is in contact and cooperation with the upper side of the linkage locking assembly; the lower side of the linkage locking assembly is used to press the connection terminals of the cables and the conductive sheet assembly.

[0038] When wiring, hold the turning plate 9 and lift the dust-proof cover 5 upward. The extrusion part 7 of the dust-proof cover 5 rotates 90 degrees, and the lower surface of the extrusion part 7 presses the linkage locking assembly, forcing the lower side of the linkage locking assembly to separate from the conductive sheet assembly. At this time, the connection terminals of the cables can be inserted into the accommodation area of the connection cavity 2; when the dust-proof cover 5 is buckled downwards, the pressure of the extrusion part 7 on the linkage locking assembly is released, and the lower side of the linkage locking assembly moves towards the conductive sheet assembly side to press the cable terminals, and at the same time, the two-side cables are electrically connected through the conductive sheet assembly.

[0039] As Figure 5-6As shown, the linkage locking assembly includes a guiding cavity 12 fixed to the driving fixed plate 4 and a pressing cavity 13 slidably fitted within the guiding cavity 12. The pressing cavity 13 is used to press the connection terminal of the cable. A guiding ring 14 is provided at the inner center of the guiding cavity 12, and a locking driving column 15 is slidably fitted within the guiding ring 14. The upper side of the locking driving column 15 extends out of the guiding cavity 12 and is fixed to a pressing ring 16 with a semi-circular cross-section. The pressing ring 16 is in contact and cooperation with the pressing portion 7 of the dust-proof cover 5. The lower side of the locking driving column 15 extends out of the guiding ring 14 and is fixed to a first spring clamping plate 17, and the outer diameter of the first spring clamping plate 17 is greater than the inner diameter of the guiding ring 14. A second spring clamping plate 18 corresponding to the first spring clamping plate 17 is provided at the inner center of the pressing cavity 13. A pressing spring 19 is fitted between the first spring clamping plate 17 and the second spring clamping plate 18. An anti-detachment column 20 is provided at the outer center of the pressing cavity 13, and the connection terminal of the cable can be clamped on the anti-detachment column 20. The conductive sheet assembly has a corresponding receiving groove (that is, the connection terminal of the cable can be clamped on the anti-detachment column 20. The upper side of the anti-detachment column 20 presses the upper surface of the connection terminal, the lower surface of the connection terminal contacts the conductive sheet assembly, and the anti-detachment column 20 extends into the receiving groove without interference). A driving chute 21 inclined upward to the right is formed on the locking driving column 15, and a locking driving member 22 is slidably fitted within the driving chute 21. The locking driving member 22 includes a left driving block, a right driving block, and an intermediate sliding rod connecting the left driving block and the right driving block. The intermediate sliding rod is slidably fitted with the driving chute 21 (that is, the locking driving member 22 can slide along the driving chute 21 through the intermediate sliding rod). The sides of both the left driving block and the right driving block are structures inclined downward to the right, and the upper and lower sides of both the left driving block and the right driving block are linear structures. At the same time, a transverse movement chute 23 is formed on the guiding ring 14, and the transverse movement chute 23 penetrates left and right. The left driving block and the right driving block are slidably fitted within the transverse movement chute 23. Inclined sliding plates 24 corresponding to the left driving block and the right driving block are provided in the inner cavity of the pressing cavity 13, and the two inclined sliding plates 24 are respectively in contact and cooperation with the sides of the left driving block and the right driving block. As Figure 7 As shown, when wiring, hold the flipping plate 9 and lift the dust-proof cover 5 upward. The pressing portion 7 of the dust-proof cover 5 rotates 90 degrees, and the pressing portion 7 pushes the pressing ring 16 downward. The pressing ring 16 presses the locking driving column 15 downward. Under the guiding action of the driving chute 21 on the locking driving column 15, the intermediate sliding rod slides along the driving chute 21, and the locking driving member 22 moves to the right along the transverse movement chute 23. The left driving block and the right driving block squeeze the inclined sliding plates 24, and the whole pressing cavity 13 moves upward to separate from the conductive sheet assembly, and the pressing spring 19 is squeezed. At this time, the connection terminal of the cable can be clamped on the anti-detachment column 20 at the lower side of the pressing cavity 13. When the dust-proof cover 5 is buckled downward, the pressure of the pressing portion 7 on the linkage locking assembly is released, and the pressing spring 19 drives the pressing cavity 13 to move downward and return to its original position.

[0040] The connection cavity 2 is enclosed and isolated by the dust-proof cover 5, which can block most of the dust. However, there is a wire groove 8 at the end of the dust-proof cover 5, and a part of the dust will still enter the connection cavity 2, adhering to the conductive sheet assembly. To solve this problem, as Figure 8 shown, main air flow channels 25 are provided on both sides of the terminal block body 1. The main air flow channels 25 penetrate through the terminal block body 1 and the T-shaped partition member 3. Branch air flow channels 26 communicating with the main air flow channels 25 are provided on both sides of the T-shaped partition member 3. The branch air flow channels 26 penetrate through the vertical side of the T-shaped partition member 3 and extend into the driving fixed plate 4. As Figure 9 shown, the branch air flow channels 26 inside the driving fixed plate 4 communicate with the branch air flow channels 27. Two of the branch air flow channels 27 extend downward out of the driving fixed plate 4 to blow air to the space below the driving fixed plate 4 where the conductive sheet assembly is located, so that a positive pressure state is generated in the space formed by the lower side of the driving fixed plate 4 and the connection cavity 2, thereby suppressing dust from entering the connection cavity 2 through the wire groove 8. As Figure 9-10 shown, one of the branch air flow channels 27 extends upward out of the driving fixed plate 4. An air curtain channel 28 with an L-shaped cross-section is provided inside the dust-proof cover 5. One side of the air curtain channel 28 communicates with the lower end of the horizontal side of the dust-proof cover 5, and the other side of the air curtain channel 28 communicates with the wire groove 8. The branch air flow channel 27 is connected to the air curtain channel 28 through a connecting hose 29. By blowing air into the air curtain channel 28 inside the dust-proof cover 5 through the upper branch air flow channel 27, an air curtain isolation is formed at the wire groove 8 of the air curtain channel 28, thereby suppressing dust from entering the connection cavity 2 through the wire groove 8. The air curtain generated by the lower side of the driving fixed plate 4, the connection cavity 2 and the wire groove 8 of the present invention together form a closed space. Two of the branch air flow channels 27 blow air to the lower side of the driving fixed plate 4, and then continuously blow air to the outside of the air curtain, so that the environment of the closed space is a positive pressure environment relative to the outside of the air curtain. Thus, dust is suppressed from entering inside the air curtain, realizing the dual functions of air curtain isolation and positive pressure suppression.

[0041] As Figure 11 shown, internal thread structures are provided on the main air flow channels 25 on both sides of the terminal block body 1. A blocking plug 30 is fitted on the internal thread structures. The blocking plug 30 is used to block both ends of the main air flow channels 25. One implementation of the blocking plug 30 is a threaded plug, which cooperates with the internal thread structures of the main air flow channels 25 on both sides. When the device is installed in the power distribution cabinet, one of the blocking plugs 30 can be opened to connect with the air source inside the power distribution cabinet, and the other blocking plug 30 can also be opened for connecting in series with the main air flow channels 25 of other terminal block bodies 1. As Figure 12-13As shown in the figure, the second implementation of the barrier plug 30 includes a commutation cavity 31 and commutation driving sheets 32 embedded on both sides of the terminal block body 1. The commutation cavity 31 is a cylindrical shell structure, and both sides of the commutation cavity 31 are provided with external thread connection ports; the external thread connection ports of the commutation cavity 31 are used to cooperate with the internal thread structures on both sides of the terminal block body 1; a perforated plate 33 is provided inside the commutation cavity 31, and the outer edge of the perforated plate 33 has a hole structure. A rubber backing plate 36 is provided on the perforated plate 33, and the cross-section of the rubber backing plate 36 is the same as that of the perforated plate 33; a commutation driven sheet 34 is slidably fitted inside the commutation cavity 31, and there is a channel in the middle of the commutation driven sheet 34; the commutation driven sheet 34 can be made of metal or neodymium iron boron. At least two rubber rings 35 are embedded in the circumferential part of the commutation driven sheet 34, which can reduce the friction between the commutation driven sheet 34 and the commutation cavity 31 during sliding and play a buffering role at the same time; the commutation driving sheet 32 is made of neodymium iron boron and is used to adsorb the commutation driven sheet 34; when the barrier plug 30 is installed, under the adsorption of the commutation driving sheet 32, the commutation driven sheet 34 will slide along the commutation cavity 31 towards the commutation driving sheet 32 and fit with the perforated plate 33 to achieve sealing. The rubber backing plate 36 can play an airtightness role and a buffering role; when it is necessary to install and conduct two terminal block bodies 1, the barrier plug 30 is installed in the reverse direction, and the commutation driven sheet 34 fits with the commutation cavity 31 to achieve the conduction of air flow; the entire device realizes the function of one-way blocking and automatically opening after being flipped and installed; moreover, this device does not rely on pressure and is not affected by pressure changes on the flow rate, and the flow rate can always be kept maximum.

[0042] The conductive sheet assembly is used to electrically conduct the cables on both sides. The conductive sheet assembly is composed of two layers of copper sheets stacked up and down. The lower layer is a flat connecting conductive sheet 37; the upper layer is a fixed conductive sheet 38 used to contact and conduct with the cable terminals; one implementation of the conductive sheet assembly is that the connecting conductive sheet 37 and the fixed conductive sheet 38 are directly integrally formed and embedded in the connecting cavity 2 of the terminal block body 1; as Figure 14 shown, the second implementation of the conductive sheet assembly is that two fixed conductive sheets 38 are embedded in the connecting cavity 2 of the terminal block body 1; a switch cavity 39 is opened at the bottom of the terminal block body 1, and a partition 40 is provided in the switch cavity 39. The partition 40 divides the switch cavity 39 into small chambers corresponding to the connecting cavity 2; a sub-cavity plate 41 is horizontally provided in the small chamber, and a clutch push rod 42 is provided on the sub-cavity plate 41. The push head of the clutch push rod 42 is fixed to the lower side of the insulating connecting piece 43, and the connecting conductive sheet 37 is embedded on the upper side of the insulating connecting piece 43. The connecting conductive sheet 37 extends beyond the insulating connecting piece 43 to facilitate contact connection with the fixed conductive sheet 38; a connecting groove 44 is opened on the upper side of the switch cavity 39; when the clutch push rod 42 extends, the insulating connecting piece 43 fits into the connecting groove 44; the connecting conductive sheet 37 contacts the fixed conductive sheets 38 on both sides to electrically connect and conduct the fixed conductive sheets 38 on both sides; when the clutch push rod 42 retracts, the on-off of each connecting line can be controlled separately.

[0043] The clutch push rod 42 contracts to complete the conduction and closing of the fixed conductive sheet 38; when connected to a circuit with a higher voltage, an arc will occur when the connecting conductive sheet 37 is disconnected from the fixed conductive sheets 38 on both sides. This switch is not conducive to electrical safety; Figure 15-16 As shown, two arc-extinguishing guide shafts 45 are relatively arranged in the connecting cavity 2 on the upper side of the dividing cavity plate 41, and the spacing between the arc-extinguishing guide shafts 45 is greater than the width of the insulating connecting piece 43, that is, the insulating connecting piece 43 can pass through between the arc-extinguishing guide shafts 45; an arc-extinguishing plate 46 is slidably matched on the arc-extinguishing guide shaft 45, and arc-starting columns 47 are arranged on the arc-extinguishing plate 46 at intervals; the arc-extinguishing plate 46 is made of non-metallic material, and the arc-starting column 47 is made of metal material; the arc-starting column 47 is wide at the lower end and narrow at the upper end; the gradually shrinking setting method can increase the pressure of the arc during the transmission process, better twist and isolate the arc, thereby further improving the arc-extinguishing performance; an arc-starting drive spring 49 is passed through the arc-starting column 47, and the arc-starting drive spring 49 is used to force the two arc-starting plates to approach and contact each other; on both sides of the terminal block body 1 and the dividing cavity plate A zigzag rope channel 48 is provided on 41, one side of the rope channel 48 faces the side of the arc-striking plate, and the other side of the rope channel 48 faces the bottom of the insulating connecting piece 43; one end of the connecting rope 50 is connected to the side of the arc-striking plate, and the other end of the connecting rope 50 passes through the rope channel 48 and is connected to the bottom of the insulating connecting piece 43; the clutch push rod 42 is extended, and the insulating connecting piece 43 is matched in the connecting groove 44; the connecting conductive piece 37 contacts with the fixed conductive pieces 38 on both sides, and the fixed conductive pieces 38 on both sides are electrically connected and conducted; the arc extinguishing plates 46 are located on both sides of the arc extinguishing guide shaft 45; when a separate connecting line needs to be switched on and off; the clutch push rod 42 is retracted, the insulating connecting piece 43 moves downward, and the arc-striking driving spring 49 forces the two arc extinguishing plates 46 to approach each other.

[0044] A second aspect of the present invention provides a DCS unit cabinet, comprising a cabinet terminal block assembly according to any one of the above embodiments and a DCS unit cabinet body 51 , wherein the cabinet terminal block assembly is installed inside the DCS unit cabinet body 51 .

[0045] If the fixing method is not separately introduced above, the general technical means used by technicians in the industry are used, such as welding, nesting, or threaded fixing.

[0046] The following points need to be explained:

[0047] (1) The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to the general design.

[0048] (2) For clarity, in the drawings used to describe the embodiments of the present invention, the thickness of layers or regions is enlarged or reduced, that is, these drawings are not drawn to actual scale. It can be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, the element can be "directly" on or under the other element or there can be intervening elements.

[0049] (3) Without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to obtain new embodiments.

[0050] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cabinet terminal block assembly, characterized in that, It includes a terminal block body and a number of connection cavities provided on the terminal block body. The connection cavity is divided into two parts by a T-shaped partition; a driving fixing plate is horizontally provided in the connection cavities separated on both sides. A dust-proof cover is fitted on the upper side of the driving fixing plate, and the dust-proof cover is rotationally fitted with the connection cavity; a conductive sheet assembly for electrically connecting the cables on both sides is provided at the bottom of the connection cavity; a linkage locking assembly is provided on the driving fixing plate, and the rotating part of the dust-proof cover is in contact fit with the upper side of the linkage locking assembly; the lower side of the linkage locking assembly is used to press the connection terminal of the cable and the conductive sheet assembly; when the dust-proof cover is opened, the pressing part of the dust-proof cover presses the upper side of the linkage locking assembly, and the lower side of the linkage locking assembly is separated from the conductive sheet assembly; when the dust-proof cover is closed, the lower side of the linkage locking assembly moves towards the conductive sheet assembly side for pressing; the linkage locking assembly includes a guiding cavity fixed to the driving fixing plate and a pressing cavity slidably fitted in the guiding cavity; a guiding ring is provided at the inner center of the guiding cavity, and a locking driving column is slidably fitted in the guiding ring; the upper side of the locking driving column extends out of the guiding cavity and is fixed to the pressing ring; the pressing ring is in contact fit with the pressing part of the dust-proof cover; the lower side of the locking driving column extends out of the guiding ring and is fixed to the first spring plate; a second spring plate corresponding to the first spring plate is provided at the inner center of the pressing cavity; a pressing spring is fitted between the first spring plate and the second spring plate; a driving chute inclined upwards to the right is provided on the locking driving column, and a locking driving member is slidably fitted in the driving chute; a transverse movement chute is provided through on the guiding ring, and the locking driving member is slidably fitted in the transverse movement chute; an inclined slide plate corresponding to the locking driving member is provided in the inner cavity of the pressing cavity, and both sides of the locking driving member are in contact fit with the inclined slide plate.

2. The terminal block assembly of a cabinet according to claim 1, characterized in that Main air flow channels are provided on both sides of the terminal block body, and the main air flow channels penetrate through the terminal block body and the T-shaped partition; sub-air flow channels communicating with the main air flow channels are provided on both sides of the T-shaped partition, and the sub-air flow channels penetrate through the vertical side of the T-shaped partition and extend into the driving fixing plate; the sub-air flow channels inside the driving fixing plate communicate with the branch air flow channels, and the branch air flow channels extend downwards out of the driving fixing plate for blowing air towards the space below the driving fixing plate and where the conductive sheet assembly is located.

3. The terminal block assembly of a cabinet according to claim 2, characterized in that, The branch air flow channels extend upwards out of the driving fixing plate, and an air curtain channel with an L-shaped cross-section is provided inside the dust-proof cover. One side of the air curtain channel communicates with the lower end of the horizontal side of the dust-proof cover, and the other side of the air curtain channel communicates with the wire groove; the branch air flow channels are connected to the air curtain channel through a connecting hose; by blowing air into the air curtain channel inside the dust-proof cover through the upper branch air flow channels, an air curtain isolation is formed at the wire groove; the lower branch air flow channels blow air towards the space below the driving fixing plate, and then continuously blow air outside the air curtain, so that a positive pressure environment is formed in the enclosed space relative to the environment outside the air curtain.

4. A cabinet terminal block assembly according to claim 1, characterized in that, Internal thread structures are provided on the main air flow channels on both sides of the terminal block body, and barrier plugs are fitted on the internal thread structures for blocking both ends of the main air flow channels.

5. A cabinet terminal block assembly according to claim 4, characterized in that, The barrier plug includes a commutation cavity and commutation driving pieces embedded on both sides of the terminal block body. The two sides of the commutation cavity are provided with external thread connection ports; the external thread connection ports of the commutation cavity are used to cooperate with the internal thread structures on both sides of the terminal block body; a porous plate is arranged inside the commutation cavity, the outer edge of the porous plate has a hole structure, and a rubber backing plate is arranged on the porous plate; a commutation driven piece is slidably fitted inside the commutation cavity, and a channel is arranged in the middle of the commutation driven piece; the commutation driving piece is used to adsorb the commutation driven piece to achieve commutation.

6. A cabinet terminal block assembly according to claim 1, wherein, The conductive sheet assembly is composed of two layers of copper sheets stacked up and down. The lower layer is a flat connecting conductive sheet; the upper layer is a fixed conductive sheet used for contacting and conducting with the cable terminal.

7. The terminal block assembly of a cabinet according to claim 6, characterized in that, The connecting conductive sheet and the fixed conductive sheet are integrally formed directly and embedded in the connecting cavity of the terminal block body.

8. The cabinet terminal block assembly according to claim 6, characterized in that, The fixed conductive sheet is embedded in the connecting cavity of the terminal block body; a switch cavity is opened at the bottom of the terminal block body, a partition plate is arranged in the switch cavity, and the partition plate divides the switch cavity into small chambers corresponding to the connecting cavity; a sub-cavity plate is horizontally arranged in the small chamber, a clutch push rod is arranged on the sub-cavity plate, the push head of the clutch push rod is fixed to the lower side of the insulating connecting sheet, the connecting conductive sheet is embedded on the upper side of the insulating connecting sheet, and the connecting conductive sheet extends beyond the insulating connecting sheet; a connecting groove is opened on the upper side of the switch cavity.

9. A DCS unit cabinet, characterized in that, It includes the cabinet terminal block assembly as described in claim 1 and the DCS unit cabinet body, and the cabinet terminal block assembly is installed inside the DCS unit cabinet body.

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