Electromechanical control cabinet and capacity expansion method thereof

Abstract

The invention relates to the technical field of electromechanical control cabinets, and provides an electromechanical control cabinet and a capacity expansion method thereof.The electromechanical control cabinet comprises a cabinet body and a cabinet door, a mounting cavity is formed in the cabinet body, and the two side faces, parallel to the width direction of the cabinet body, of the cabinet body are each provided with an opening; the cabinet door comprises door bodies and a top plate, and one door body is arranged in each opening; the top plate is fixedly arranged on the door body; when the two cabinet bodies are arranged at intervals in the length direction, the two door bodies and the two top plates between the two cabinet bodies define an expansion cavity. The cabinet doors comprise the door bodies and the top plates, the two cabinet doors are in central symmetry about the central points of the cabinet bodies, and the two cabinet bodies and one of the cabinet doors on the cabinet bodies are arranged, so that the capacity expansion cavity communicated with the two mounting cavities can be formed in a surrounding manner, and more electrical elements can be mounted; the electromechanical control cabinet is fully utilized, and the input cost of an electromechanical automation system is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical control cabinets, and in particular to an electromechanical control cabinet and a capacity expansion method thereof. Background Art

[0002] The electromechanical control cabinet plays an important role in the electromechanical automation system. It can not only transmit electrical energy to various power terminals to meet the power needs of each power terminal, but also store and protect various electrical components to ensure the safe operation of various electrical components in the electromechanical automation system.

[0003] Existing electromechanical control cabinets are usually composed of components such as a cabinet body, cabinet doors, electrical component fixing frames, and dust-proof and heat-dissipating equipment. For example, an electromechanical automation control cabinet disclosed in the invention patent with publication number CN115835567A uses cabinet doors and a cabinet body to enclose a relatively closed cavity, and electrical components are installed in this cavity for protection.

[0004] In actual use, as the functions of the electromechanical automation system gradually become richer, it is necessary to continuously add electrical components to the electromechanical control cabinet. However, the installation space in the electromechanical control cabinet is limited. When a large number of electrical components are added, the installation space inside the cabinet will be insufficient, and additional electromechanical control cabinets will need to be purchased. This is not only not conducive to the full utilization of the electromechanical control cabinet, but also increases the investment cost of the electromechanical automation system. Summary of the invention

[0005] In view of this, the present invention proposes an electromechanical control cabinet and a capacity expansion method thereof, which can expand the capacity of the control cabinet, increase the internal installation space thereof, and reduce the investment cost of the electromechanical automation system.

[0006] The technical solution of the present invention is implemented as follows: On the one hand, the present invention provides an electromechanical control cabinet, comprising a cabinet body and a cabinet door, wherein the cabinet body is a rectangular parallelepiped structure, an installation cavity is provided inside the cabinet body, and an opening is respectively provided on two side surfaces of the cabinet body parallel to the width direction thereof, the two openings are of the same size, and the center points of the two openings are spaced apart in the width direction of the cabinet body;

[0007] The cabinet door comprises a door body and a top plate, one of the door bodies is arranged in each of the openings, one end of the door body is rotatably connected to the cabinet body, and the other end is detachably fixedly connected to the cabinet body, for blocking the opening, and the two door bodies are centrally symmetrical about the center point of the cabinet body; the top plate is fixedly arranged on the door body and passes through the opening;

[0008] When the two cabinets are arranged at intervals along the length direction thereof, the two door bodies and the two top plates between the two cabinets enclose a capacity expansion cavity, and the capacity expansion cavity is communicated with the two installation cavities.

[0009] On the basis of the above technical solution, preferably, the top plate is fan-shaped, and its center coincides with the rotation axis of the door body connected thereto, and its center angle is greater than degrees;

[0010] The two top plates on the same cabinet are arranged at intervals along the height direction of the cabinet.

[0011] More preferably, it further comprises a connecting circuit, the cabinet door further comprises a control panel, the connecting circuit comprises a conductive copper bus, a slide rail, a contact copper bus and a slide column, wherein the control panel is fixed through the door body;

[0012] The conductive copper busbar is fixedly disposed between the door body and the top plate, and one end thereof is electrically connected to the control panel;

[0013] The slide rail is fixedly disposed in the cabinet;

[0014] The contact copper bar is fixedly arranged on the top side of the slide rail;

[0015] The sliding column is fixed on the top plate and slidably arranged on the slide rail and the contact copper bar, and two ends of the sliding column are respectively electrically connected to one end of the conductive copper bar away from the control panel and the contact copper bar.

[0016] More preferably, the sliding column comprises a support rod, a sleeve rod, a spring and a rotating wheel, wherein the support rod penetrates and is fixed on the top plate and is electrically connected to the conductive copper busbar;

[0017] The sleeve rod is sleeved on the support rod, slides therewith and is electrically connected thereto, and the sleeve rod is slidably disposed in the slide rail;

[0018] The spring is arranged between the support rod and the sleeve rod, and abuts against a side of the sleeve rod away from the contact copper bar;

[0019] The rotating wheel is rotatably arranged on the sleeve rod and is electrically connected thereto, and the rotating wheel rolls with and is electrically connected to the bottom side of the contact copper bar.

[0020] More preferably, the cross section of the rotating wheel is a Lello triangle;

[0021] The connecting line also includes a stabilizing copper bar, which is fixedly arranged on the bottom side of the slide rail. The stabilizing copper bar is parallel to the contact copper bar and is spaced apart. The spacing between the two is 0.5-2 mm larger than the spacing between two adjacent top corners on the rotating wheel.

[0022] More preferably, the control panel includes a switch box and a plurality of wiring terminals, the conductive copper busbar includes a symmetry line, a conductive nut, a conductive bolt and a conducting wire, wherein a panel hole is opened in the door body;

[0023] The switch box is slidably disposed in the panel hole and is an axisymmetric structure;

[0024] The plurality of connecting terminals are fixedly arranged on the same side of the switch box;

[0025] The symmetry line is fixedly arranged on the door body, and the symmetry line corresponds to the connection terminals one by one;

[0026] The conductive nuts are respectively fixedly arranged at the two ends of the symmetry line and electrically connected thereto, and the conductive nuts at the two ends of the symmetry line are symmetrically arranged about the symmetry axis of the switch box;

[0027] The conductive bolt is connected to the conductive nut through threaded fitting and abuts against the wiring terminal, and the conductive bolt is electrically connected to the conductive nut and the wiring terminal respectively;

[0028] The conducting wire is fixedly arranged between the door body and the top plate, and two ends thereof are electrically connected to the symmetry line and the sliding column respectively.

[0029] More preferably, the square of the length a of the cabinet 2 >(3x 2 -y 2 -2xy), wherein x is the width of the opening, and y is the spacing distance between the center points of two openings on the same cabinet in the width direction of the cabinet.

[0030] On the basis of the above technical solution, preferably, it further comprises an electrical component fixing bracket, wherein the electrical component fixing bracket is detachably fixed inside the cabinet and / or on the door body;

[0031] The cabinet door also includes a locking piece. A first card slot is provided in the cabinet body, and a second card slot is provided on the outer side of the cabinet body. One end of the locking piece is rotatably provided on the door body, and the other end is engaged with the first card slot or the second card slot.

[0032] More preferably, the cabinet door further comprises a lower flap, a magnetic block and a latch, wherein the lower flap is rotatably arranged on the bottom side of the door body;

[0033] The magnetic block is fixedly arranged on the door body and is connected to the lower flap by magnetic attraction;

[0034] The latch is fixedly arranged on the lower flap and can be snap-connected with the door body.

[0035] In a second aspect, the present invention provides a method for expanding the capacity of an electromechanical control cabinet, comprising the following steps:

[0036] S1, taking out two cabinets, and arranging the two cabinets at intervals along the length direction of the cabinets, wherein the two cabinets are a first cabinet and a second cabinet, respectively, and the interval between the first cabinet and the second cabinet is equal to the width of the door body;

[0037] S2, rotating the door of the first cabinet close to the second cabinet toward the second cabinet, and connecting it to the second cabinet by using the locking piece;

[0038] S3, installing the electrical component fixing frame on the door body, and fixing the electrical component on the electrical component fixing frame;

[0039] S4, rotating the door of the second cabinet close to the first cabinet toward the first cabinet, and connecting the door to the first cabinet by using the locking piece.

[0040] The electromechanical control cabinet and the capacity expansion method thereof of the present invention have the following beneficial effects compared with the prior art:

[0041] (1) By setting the cabinet door to include a door body and a top plate, and making the two cabinet doors symmetrical about the center point of the cabinet body, by arranging the two cabinet bodies and one of the cabinet doors on the cabinet body, an expansion cavity connected to the two installation cavities can be enclosed to install more electrical components, which not only makes full use of the electromechanical control cabinet, but also reduces the investment cost of the electromechanical automation system;

[0042] (2) By setting up conductive copper bars, slide rails, contact copper bars and sliding columns, the zero wire harness connection between the control panel on the door and the electrical components in the cabinet can be realized, which not only simplifies the structure of the connection line, but also effectively avoids the occurrence of line damage problems;

[0043] (3) By setting the symmetry line, conductive nuts and conductive bolts, and arranging the conductive nuts at both ends of the symmetry line symmetrically about the symmetry axis of the switch box, when debugging and installing the lines inside the cabinet, the switch box can be installed in reverse so that the indicator light on the switch box faces the inside of the cabinet, thereby improving the convenience of installation and debugging of the electromechanical control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A three-dimensional diagram of an electromechanical control cabinet and a capacity expansion method thereof according to the present invention;

[0046] Figure 2 A three-dimensional diagram of an electromechanical control cabinet and a capacity expansion method thereof of the present invention in a capacity expansion state;

[0047] Figure 3 A cross-sectional view of an electromechanical control cabinet and a capacity expansion method thereof of the present invention in a capacity expansion state;

[0048] Figure 4 A cross-sectional view of an electromechanical control cabinet and a capacity expansion method thereof according to the present invention;

[0049] Figure 5 A three-dimensional diagram of a top plate of an electromechanical control cabinet and a method for expanding the capacity of the same according to the present invention;

[0050] Figure 6 A three-dimensional diagram of a sliding column in an electromechanical control cabinet and a capacity expansion method thereof according to the present invention;

[0051] Figure 7 A cross-sectional view of a sliding column in an electromechanical control cabinet and a method for expanding the capacity of the electromechanical control cabinet according to the present invention;

[0052] Figure 8 A cross-sectional view of a slide rail in an electromechanical control cabinet and a capacity expansion method thereof of the present invention;

[0053] Fig. 9 It is a front view of a symmetry line in an electromechanical control cabinet and a capacity expansion method thereof of the present invention;

[0054] Fig.10 A three-dimensional diagram of a conductive bolt in an electromechanical control cabinet and a capacity expansion method thereof according to the present invention;

[0055] Fig.11 A schematic diagram of the dimensions and specifications of a cabinet cross section in an electromechanical control cabinet and a method for expanding the capacity of the cabinet in the present invention;

[0056] Fig.12 A three-dimensional diagram of a locking piece in an electromechanical control cabinet and a capacity expansion method thereof according to the present invention;

[0057] Fig.13 A three-dimensional diagram of an electromechanical control cabinet and a capacity expansion method thereof in an unfolded state of a lower flap in the present invention;

[0058] Fig.14 It is a three-dimensional diagram of a folded lower flap in an electromechanical control cabinet and a capacity expansion method thereof of the present invention.

[0059] Wherein: 1. cabinet; 11. first cabinet; 12. second cabinet; 101. installation cavity; 102. opening; 103. expansion cavity; 104. first slot; 105. second slot; 2. cabinet door; 21. door; 22. top plate; 23. control panel; 231. switch box; 232. terminal; 24. locking piece; 25. lower flap; 26. magnetic block; 27. latch; 201. panel hole; 3. connecting line; 31. conductive copper busbar; 311. symmetry line; 312. conductive nut; 313. conductive bolt; 314. conducting line; 32. slide rail; 33. contact copper busbar; 34. sliding column; 341. support rod; 342. sleeve rod; 343. spring; 344. rotating wheel; 35. stabilizing copper busbar; 4. electrical component fixing frame. DETAILED DESCRIPTION

[0060] The following will be combined with the specific implementation of the present invention to clearly and completely describe the technical solution in the present invention. Obviously, the described implementation is only a part of the implementation of the present invention, not all of the implementation. Based on the implementation of the present invention, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] like Figure 1-14 As shown, an electromechanical control cabinet of the present invention includes a cabinet body 1, a cabinet door 2, a connecting line 3 and an electrical component fixing frame 4, which can achieve a capacity expansion effect so that the existing multiple electromechanical control cabinets can accommodate more electrical components.

[0062] Among them, the cabinet 1 is the main structure of the electromechanical control cabinet. Figure 1 As shown, the cabinet 1 is a rectangular structure with an installation cavity 101 inside. An opening 102 is opened on the side of the cabinet 1. Electrical components can enter and exit the cabinet 1 through the opening 102 and be installed in the installation cavity 101 to protect the electrical components.

[0063] The cabinet door 2 is used to seal the opening 102, thereby achieving the closure of the installation cavity 101 and improving the protection effect of the electrical components. The cabinet door 2 includes a door body 21 and a top plate 22. The door body 21 is arranged in the opening 102. One end of the door body 21 is rotatably connected to the cabinet body 1, and the other end is detachably fixedly connected to the cabinet body 1. When the end of the door body 21 detachably fixedly connected to the cabinet body 1 is fixedly connected to the cabinet body 1, the door body 21 is fixed in the opening 102 to seal it. When the end of the door body 21 detachably fixedly connected to the cabinet body 1 is separated from the cabinet body 1, the door body 21 can be rotated to allow the electrical components to enter and exit the installation cavity 101.

[0064] like Figure 3 As shown, an opening 102 is respectively provided on two side surfaces of the cabinet 1 parallel to its width direction, and the two openings 102 are of the same size. A door body 21 is provided in each opening 102. When disassembling and assembling electrical components, both door bodies 21 can be opened, allowing two operators to install the electrical components in the control cabinet at the same time, which increases the disassembly and assembly space of the electrical components and improves the convenience of disassembly and assembly of the electrical components; Figure 2 As described above, the two side surfaces of the cabinet 1 parallel to its length direction can be installed on the frame of the cabinet 1 in a detachable structure, so that the installation cavity 101 is fully exposed when installing electrical components, thereby improving the efficiency of disassembly and assembly of electrical components.

[0065] The center points of the two openings 102 are spaced apart in the width direction of the cabinet 1, and the two openings 102 are symmetrical about the center point of the cabinet 1. Correspondingly, the two door bodies 21 are symmetrical about the center point of the cabinet 1, and the connection positions and connection relationships between the two door bodies 21 and the cabinet 1 are also symmetrical about the center point of the cabinet 1. Figure 1 As shown, when the two doors 21 are in the open state, they are respectively located at the two ends of the width direction of the cabinet 1, so that the cabinet door 2 of the electrical control cabinet can be opened in different installation environments, thereby improving its installation adaptability.

[0066] The top plate 22 is fixedly disposed on the door body 21 and passes through the opening 102; Figure 2 and Figure 3As shown, when there are two control cabinets, the two cabinet bodies 1 are arranged at intervals along their length direction. By rotating the two door bodies 21 between the two cabinet bodies 1, the two door bodies 21 and the two top plates 22 between the two cabinet bodies 1 can be enclosed to form an expansion cavity 103. The expansion cavity 103 is connected with the two installation cavities 101, and the overall cavity formed by the expansion cavity 103 and the two installation cavities 101 is relatively closed, which can be used to store and protect electrical components. By utilizing the structural design of the control cabinet, the capacity of the two installation cavities 101 in the original two cabinet bodies 1 is increased by the capacity of one expansion cavity 103, which not only makes full use of the electromechanical control cabinet, but also reduces the investment cost of the electromechanical automation system.

[0067] In order to prevent the top plate 22 from making irregular movements when the door body 21 rotates, Figure 4 and Figure 5 As shown, the top plate 22 is preferably fan-shaped, and its center coincides with the rotation axis of the door body 21 connected thereto; the center angle of the top plate 22 is greater than 90 degrees to avoid it from being in a position such as Figure 3 In the state shown, the installation cavity 101 is slid out to improve the sealing performance of the expansion cavity 103; in order to avoid interference between the two top plates 22 on the top of the expansion cavity 103, or to avoid interference between the two top plates 22 in the same cabinet 1, the two top plates 22 on the same cabinet 1 are spaced apart along the height direction of the cabinet 1.

[0068] The cabinet door 2 also includes a control panel 23, a locking piece 24, a lower flap 25, a magnetic block 26 and a latch 27, wherein the control panel 23 is fixed through the door body 21; the control panel 23 is provided with components such as switches and indicator lights, and the operator can operate the switches on the control panel 23 on the outside of the control cabinet, or perform corresponding operations on the outside of the control cabinet according to the prompts on the control panel 23.

[0069] The locking piece 24 is used to realize a detachable fixed connection between the cabinet door 2 and the cabinet body 1. Fig.12 As shown, a first card slot 104 is provided in the cabinet 1, and a second card slot 105 is provided on the outer side of the cabinet 1. One end of the locking plate 24 is rotatably set on the door body 21, and the other end is engaged with the first card slot 104 or the second card slot 105, thereby realizing the connection between the door body 21 and the corresponding cabinet 1 or realizing the connection between the door body 21 and the adjacent cabinet 1.

[0070] When the opening 102 penetrates to the bottom side of the cabinet 1, the bottom ends of the door bodies 21 on both sides of the expansion cavity 103 are flush with the ground, thereby forming a relatively closed expansion cavity 103. However, in order to prevent moisture from the ground from corroding the bottom side of the cabinet 1, the bottom of the cabinet 1 is usually raised. In this case, in order to keep the expansion cavity 103 closed, a lower flap 25, a magnetic block 26 and a latch 27 are provided. The lower flap 25 is rotatably provided on the bottom side of the door body 21; the magnetic block 26 is fixedly provided on the door body 21 and connected to the lower flap 25 by magnetic attraction; the latch 27 is fixedly provided on the lower flap 25 and can be snap-fitted with the door body 21; Fig.13 As shown, when the door body 21 is opened, the lower flap 25 is rotated downward to allow the latch 27 to engage with the door body 21, so that the lower flap 25 can be used to block the gap at the bottom of the door body 21; Fig.14 As shown, when the door body 21 needs to be moved into the opening 102 , the lower flip plate 25 is flipped upwards, and the magnetic block 26 is allowed to adsorb and fix the lower flip plate 25 .

[0071] The connection line 3 is used to conduct the control panel 23 and the electrical components in the cabinet 1. When the control panel 23 and the electrical components in the cabinet 1 are conducted, it is usually necessary to arrange a connection harness. When the door body 21 is opened and closed, the harness is prone to bend, thereby affecting the safe use of the control cabinet. In order to solve this problem, the connection line 3 is configured to include a conductive copper bus 31, a slide rail 32, a contact copper bus 33 and a sliding column 34. Figure 5-Figure 7 As shown, the conductive copper bus 31 is fixedly arranged between the door body 21 and the top plate 22, and one end thereof is electrically connected to the control panel 23; the slide rail 32 is fixedly arranged in the cabinet 1; the contact copper bus 33 is fixedly arranged on the top side of the slide rail 32; the sliding column 34 is fixed through the top plate 22, and is slidably arranged on the slide rail 32 and the contact copper bus 33, and the two ends of the sliding column 34 are respectively electrically connected to the end of the conductive copper bus 31 away from the control panel 23 and the contact copper bus 33; when the door body 21 rotates, the sliding column 34 can be driven to slide on the contact copper bus 33, and the control panel 23 on the door body 21 and the electrical components in the cabinet 1 are connected by this sliding conductive structure. By using the design of this structure, there is no need to use a wiring harness to connect the control panel 23 and the electrical components in the cabinet 1, which will not cause damage to the wiring harness, and there is no need to consider the rationality of the wiring harness arrangement position, thereby improving the connection convenience of the electrical components.

[0072] Assume that the width of the opening 102 is x, the distance between the center points of the two openings 102 on the same cabinet 1 in the width direction of the cabinet 1 is y, and the length of the cabinet 1 is a. Figure 4 and Fig.11 As shown, since the door body 21 and the top plate 22 block the opening 102, the radius of the top plate 22 is also a. According to the Pythagorean theorem, as long as a is satisfied 2 >4x2 -(x+y) 2 , that is, a 2 >3x 2 -y 2 -2xy, it can be ensured that the slide rails 32 in the same cabinet 1 will not interfere with each other.

[0073] like Figure 7 As shown, the sliding column 34 includes a support rod 341, a sleeve rod 342, a spring 343 and a rotating wheel 344. The support rod 341 penetrates and is fixed on the top plate 22 and is electrically connected to the conductive copper bar 31; the sleeve rod 342 is sleeved on the support rod 341, slides therewith and is electrically connected, and the sleeve rod 342 is slidably arranged in the slide rail 32; the spring 343 is arranged between the support rod 341 and the sleeve rod 342, and is abutted against the side of the sleeve rod 342 away from the contact copper bar 33; the rotating wheel 344 is rotatably arranged On the sleeve rod 342, and electrically connected thereto, the rotating wheel 344 rolls and is electrically connected to the bottom side of the contact copper busbar 33; when the door body 21 drives the support rod 341 to move, the rotating wheel 344 is rollingly connected to the contact copper busbar 33, thereby reducing the wear of the sliding column 34 and the contact copper busbar 33 and increasing the service life of the connecting line 3; at the same time, the spring 343 can provide the rotating wheel 344 with a force toward the contact copper busbar 33, so that the two are tightly connected to avoid power outages.

[0074] In order to reduce the activity space of the rotating wheel 344, a stabilizing copper bar 35 should be provided in the connecting line 3. The stabilizing copper bar 35 is fixedly arranged on the bottom side of the slide rail 32. The stabilizing copper bar 35 is parallel to the contact copper bar 33 and is arranged at intervals. The distance between the two is 0.5-2mm larger than the distance between two adjacent top corners on the rotating wheel 344, thereby reducing the longitudinal activity range of the rotating wheel 344. At the same time, in order to ensure the quality of power supply, the stabilizing copper bar 35 can be electrically connected to the contact copper bar 33. When the rotating wheel 344 contacts the stabilizing copper bar 35, electrical conduction is also performed.

[0075] It is preferred that the cross section of the rotating wheel 344 is a Lello triangle, which is a prior art, and the distance from one vertex to any point on the opposite side of the vertex is equal; Figure 8 As shown, when the rotating wheel 344 rotates between the contact copper bar 33 and the stabilizing copper bar 35, its center point will be displaced in the vertical direction, driving the sleeve rod 342 to slide up and down. This sliding effect will provide a vibration feedback to the top plate 22 and the door body 21. When the rotating wheel 344 does not rotate between the contact copper bar 33 and the stabilizing copper bar 35 but slides, it will not provide a vibration feedback to the top plate 22 and the door body 21. Based on the existence of this vibration feedback, it can be determined whether the rotating wheel 344 rotates during the movement of the door body 21. If it does not rotate, the rotating wheel 344 should be promptly repaired to avoid increasing the wear on the contact copper bar 33.

[0076] like Fig. 9 and Fig.10 As shown, the control panel 23 includes a switch box 231 and a plurality of wiring terminals 232, and a panel hole 201 is opened in the door body 21; the switch box 231 is slidably arranged in the panel hole 201, and it is an axisymmetric structure. Of course, the shape of the panel hole 201 is also consistent with the shape of the switch box 231; the plurality of wiring terminals 232 are fixedly arranged on the same side of the switch box 231; the conductive copper bus 31 includes a symmetry line 311, a conductive nut 312, a conductive bolt 313 and a conducting line 314, and the symmetry line 311 is fixedly arranged on the door body 21, and the symmetry line 311 corresponds to the wiring terminals 232 one by one; The conductive nuts 312 are fixedly arranged at both ends of the symmetry line 311 and are electrically connected thereto, and the conductive nuts 312 at both ends of the symmetry line 311 are symmetrically arranged about the symmetry axis of the switch box 231; the conductive bolts 313 are connected to the conductive nuts 312 by threaded fit and abut against the wiring terminals 232 to fix the switch box 231 on the door body 21, and the conductive bolts 313 are electrically connected to the conductive nuts 312 and the wiring terminals 232 respectively; the conductive wire 314 is fixedly arranged between the door body 21 and the top plate 22, and its two ends are electrically connected to the symmetry line 311 and the sliding column 34 respectively; Fig. 9 As shown, if multiple terminal blocks 232 are all arranged on the right side of the switch box 231, when the switch box 231 is installed normally and the switch on its surface faces away from the cabinet 1, the terminal block 232 is electrically connected to the conductive nut 312 on the right. Since the switch box 231 and the symmetry line 311 are symmetrical structures, when the control panel 23 is reversed and the switch on its surface faces the cabinet 1, the terminal block 232 can be electrically connected to the conductive nut 312 on the left, which will not cause random or wrong connection of the lines. It is suitable for debugging the control panel 23 and the connection line 3. The electrical components in the cabinet 1 and the switches on the control panel 23 can be observed simultaneously in the cabinet 1, making the debugging operation of the control panel 23 more convenient.

[0077] The electrical component fixing frame 4 is used to install electrical components. The electrical component fixing frame 4 can be detachably fixed in the cabinet 1 and / or on the door 21 ; thereby installing the electrical components in the installation cavity 101 and / or the expansion cavity 103 .

[0078] A method for expanding the capacity of an electromechanical control cabinet of the present invention comprises the following steps:

[0079] S1, take out two cabinets 1, and space the two cabinets 1 along the length direction of the cabinets 1, wherein the two cabinets 1 are respectively a first cabinet 11 and a second cabinet 12, and the spacing distance between the first cabinet 11 and the second cabinet 12 is equal to the width of the door body 21;

[0080] S2, rotating the door 21 of the first cabinet 11 close to the second cabinet 12 by 90 degrees towards the second cabinet 12, and connecting it to the second cabinet 12 by using the locking piece 24;

[0081] S3, installing an electrical component fixing frame 4 on the door body 21 connected to the first cabinet body 11 and the second cabinet body 12, and fixing the electrical components to be added additionally on the electrical component fixing frame 4;

[0082] S4, the door 21 of the second cabinet 12 close to the first cabinet 11 is rotated 90 degrees toward the direction close to the first cabinet 11, and the door 21 of the second cabinet 12 is connected to the first cabinet 11 by the locking piece 24, and the capacity of the electromechanical control cabinet is expanded by the rotating two door bodies 21 and two top plates 22, such as Figure 2 As shown, the capacity of the expanded electromechanical control cabinet is not only improved, but also cabinet doors 2 are provided on all four sides, which not only facilitates entering and exiting the cabinet 1, but also allows the control panel 23 to be installed on the side of the cabinet 1 at different positions to facilitate switch operation.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromechanical control cabinet, characterized in that: It comprises a cabinet body (1) and a cabinet door (2), wherein: The cabinet (1) is a rectangular parallelepiped structure, with an installation cavity (101) provided inside the cabinet; two side surfaces of the cabinet (1) parallel to the width direction thereof are respectively provided with an opening (102); the two openings (102) are of the same size, and the center points of the two openings (102) are spaced apart in the width direction of the cabinet (1); The cabinet door (2) comprises a door body (21) and a top plate (22); one door body (21) is arranged in each of the openings (102); one end of the door body (21) is rotatably connected to the cabinet body (1), and the other end is detachably fixedly connected to the cabinet body (1) for blocking the opening (102); and the two door bodies (21) are centrally symmetrical about the center point of the cabinet body (1); the top plate (22) is fixedly arranged on the door body (21) and passes through the opening (102); When the two cabinet bodies (1) are arranged at intervals along their length direction, the two door bodies (21) and the two top plates (22) between the two cabinet bodies (1) enclose a capacity expansion cavity (103), and the capacity expansion cavity (103) is in communication with the two installation cavities (101).

2. The electromechanical control cabinet according to claim 1, characterized in that: The top plate (22) is fan-shaped, and its center coincides with the rotation axis of the door body (21) connected thereto, and its center angle is greater than 90 degrees; The two top plates (22) on the same cabinet (1) are arranged at intervals along the height direction of the cabinet (1).

3. An electromechanical control cabinet as claimed in claim 2, characterized in that: It also includes a connection line (3), the cabinet door (2) also includes a control panel (23), the connection line (3) includes a conductive copper busbar (31), a slide rail (32), a contact copper busbar (33) and a slide column (34), wherein: The control panel (23) is fixed through the door body (21); The conductive copper busbar (31) is fixedly arranged between the door body (21) and the top plate (22), and one end of the conductive copper busbar is electrically connected to the control panel (23); The slide rail (32) is fixedly arranged in the cabinet (1); The contact copper bar (33) is fixedly arranged on the top side of the slide rail (32); The sliding column (34) is fixed through the top plate (22) and is slidably arranged on the slide rail (32) and the contact copper bus (33), and two ends of the sliding column (34) are respectively electrically connected to an end of the conductive copper bus (31) away from the control panel (23) and the contact copper bus (33).

4. The electromechanical control cabinet according to claim 3, characterized in that: The sliding column (34) comprises a support rod (341), a sleeve rod (342), a spring (343) and a rotating wheel (344), wherein: The support rod (341) penetrates and is fixed on the top plate (22), and is electrically connected to the conductive copper bus (31); The sleeve rod (342) is sleeved on the support rod (341), slides therewith and is electrically connected thereto, and the sleeve rod (342) is slidably disposed within the slide rail (32); The spring (343) is arranged between the support rod (341) and the sleeve rod (342), and abuts against a side of the sleeve rod (342) away from the contact copper bar (33); The rotating wheel (344) is rotatably disposed on the sleeve rod (342) and is electrically connected thereto, and the rotating wheel (344) rolls with and is electrically connected to the bottom side of the contact copper busbar (33).

5. The electromechanical control cabinet according to claim 4, characterized in that: The cross section of the rotating wheel (344) is a Lello triangle; The connecting line (3) further comprises a stabilizing copper bar (35), wherein the stabilizing copper bar (35) is fixedly arranged on the bottom side of the slide rail (32), and the stabilizing copper bar (35) is parallel to and spaced apart from the contact copper bar (33), and the spacing between the two is 0.5-2 mm greater than the spacing between two adjacent top corners on the rotating wheel (344).

6. The electromechanical control cabinet according to claim 3, characterized in that: The control panel (23) comprises a switch box (231) and a plurality of connection terminals (232); the conductive copper busbar (31) comprises a symmetry line (311), a conductive nut (312), a conductive bolt (313) and a conducting wire (314); wherein: The door body (21) is provided with a panel hole (201); The switch box (231) is slidably disposed in the panel hole (201) and is an axisymmetric structure; The plurality of connection terminals (232) are fixedly arranged on the same side of the switch box (231); The symmetry line (311) is fixedly arranged on the door body (21), and the symmetry line (311) corresponds to the connection terminal (232) in a one-to-one manner; The conductive nuts (312) are respectively fixedly arranged at two ends of the symmetry line (311) and electrically connected thereto, and the conductive nuts (312) at two ends of the symmetry line (311) are symmetrically arranged about the symmetry axis of the switch box (231); The conductive bolt (313) is connected to the conductive nut (312) through threaded engagement and abuts against the wiring terminal (232), and the conductive bolt (313) is electrically connected to the conductive nut (312) and the wiring terminal (232) respectively; The conducting wire (314) is fixedly arranged between the door body (21) and the top plate (22), and its two ends are electrically connected to the symmetry line (311) and the sliding column (34) respectively.

7. The electromechanical control cabinet according to claim 3, characterized in that: The square of the length a of the cabinet (1) 2 >(3x 2 -y 2 -2xy), wherein x is the width of the opening (102), and y is the spacing distance between the center points of two openings (102) on the same cabinet (1) in the width direction of the cabinet (1).

8. The electromechanical control cabinet according to claim 1, characterized in that: It also includes an electrical component fixing frame (4), wherein the electrical component fixing frame (4) is detachably fixed inside the cabinet (1) and / or on the door (21); The cabinet door (2) further comprises a locking piece (24); a first locking slot (104) is provided in the cabinet body (1); a second locking slot (105) is provided on the outer side of the cabinet body (1); one end of the locking piece (24) is rotatably arranged on the door body (21), and the other end is locked with the first locking slot (104) or the second locking slot (105).

9. An electromechanical control cabinet according to claim 8, characterized in that: The cabinet door (2) further comprises a lower flap (25), a magnetic block (26) and a latch (27), wherein: The lower flap (25) is rotatably arranged on the bottom side of the door body (21); The magnetic block (26) is fixedly arranged on the door body (21) and is connected to the lower flap (25) by magnetic attraction; The latch (27) is fixedly arranged on the lower flap (25) and can be engaged with the door body (21).

10. A method for expanding the capacity of an electromechanical control cabinet as claimed in claim 8, characterized in that: The following steps are involved: S1, taking out two cabinets (1), and arranging the two cabinets (1) at intervals along the length direction of the cabinets (1), wherein the two cabinets (1) are respectively a first cabinet (11) and a second cabinet (12), and the interval between the first cabinet (11) and the second cabinet (12) is equal to the width of the door body (21); S2, rotating the door body (21) on the first cabinet body (11) close to the second cabinet body (12) by 90 degrees in a direction close to the second cabinet body (12), and connecting it to the second cabinet body (12) using the locking piece (24); S3, installing the electrical component fixing frame (4) on the door body (21), and fixing the electrical components on the electrical component fixing frame (4); S4, rotating the door body (21) on the second cabinet body (12) close to the first cabinet body (11) by 90 degrees in a direction close to the first cabinet body (11), and connecting it to the first cabinet body (11) using the locking piece (24).

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