An electrical control cabinet with electrical component protection function

Abstract

The invention discloses an electrical control cabinet with an electrical component protection function, which relates to the field of electrical control cabinets. The key points of the technical solution are as follows: the cabinet body comprises a cabinet door hingedly connected to one side of the cabinet body, the cabinet door is fixed to the cabinet body via a lock between the end away from the hinge point, a first shock-absorbing member is screwed fixed inside the cabinet body, a protective frame is screwed fixed to the end of the first shock-absorbing member away from the cabinet body, a second shock-absorbing member is arranged between the protective frame and the cabinet body, a rear cover is screwed fixed to the cabinet body on the side opposite to the cabinet door, a heat dissipation groove is arranged on the rear cover, a plurality of hinges are rotatably connected inside the heat dissipation groove, a through groove is arranged on the cabinet door, a pressing piece is arranged on the side of the through groove, and the pressing piece is located in the direction of the through groove toward the cabinet body; the cabinet body combines the use of multiple anti-seismic structures and is provided with various waterproof structures, and is combined with an intermittent heat dissipation structure, which can effectively ensure the waterproof and anti-seismic performance of the cabinet body, and at the same time does not affect the heat dissipation of the cabinet body, effectively protects the internal electrical components, and prolongs the service life.

Description

Technical Field

[0001] The invention relates to the technical field of electric control cabinets, in particular to an electric control cabinet with an electric component protection function. Background Art

[0002] The electrical control cabinet is a combination of switchgear, measuring instruments, protective electrical appliances and auxiliary equipment assembled in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirements. Its layout should meet the requirements for normal operation of the power system and should not endanger the safety of people and surrounding equipment. During normal operation, the circuit can be connected or disconnected with the help of manual or automatic switches.

[0003] It is widely used in the field of industrial electricity. During use, the electrical control cabinet does not work alone, but requires multiple electrical control cabinets to work together. This will cause the electrical control cabinets to be closely placed side by side, which is not conducive to ventilation. Therefore, in some special use scenarios with high surface humidity, the electrical parts inside the electrical control cabinet are very easy to get damp. Moreover, when in a long-term working state, the heat generated between the electrical control cabinets will accumulate, thereby affecting the service life of the electrical control cabinet.

[0004] At the same time, since the electrical control cabinet is often in a closed state, the internal electrical components need to be protected from water and dust, and when subjected to external impact, short circuits may easily occur in the internal electrical components. However, the existing electrical control cabinets are generally frames processed from sheet metal, and waterproof and earthquake-resistant structures are generally not provided. The protection effect of this aspect on the electrical components is low. Therefore, the inventors redesigned the electrical control cabinet in the above-mentioned direction. Summary of the invention

[0005] The purpose of the present invention is to provide an electrical control cabinet with electrical component protection function. The cabinet body combines the use of multiple earthquake-resistant structures and is equipped with various waterproof structures. Combined with an intermittent heat dissipation structure, it can effectively ensure the waterproof and earthquake-resistant performance of the cabinet body without affecting its own heat dissipation, effectively protecting the internal electrical components and extending the service life.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An electrical control cabinet with an electrical component protection function comprises a cabinet body, a cabinet door hingedly connected to one side of the cabinet body, the cabinet door is fixed to the cabinet body by a lock between the end away from the hinge point, a first shock-absorbing component is screwed fixed inside the cabinet body, a protective frame is screwed fixed to the end of the first shock-absorbing component away from the cabinet body, an electrical control module is installed inside the protective frame, a second shock-absorbing component is arranged between the protective frame and the cabinet body, a rear cover is screwed fixed to the side of the cabinet body opposite to the cabinet door, a heat dissipation groove is arranged on the rear cover, a plurality of hinges are rotatably connected inside the heat dissipation groove, a through slot is arranged on the cabinet door, the through slot is used to plug in the electrical control device, a pressing piece is arranged on the side of the through slot, and the pressing piece is located in the direction of the through slot facing the cabinet body.

[0008] The cabinet body and cabinet doors are made of low-shrinkage unsaturated polyester glass fiber sheet film plastic reinforced alloy plate, which has good anti-corrosion and waterproof properties.

[0009] As a preferred solution of the present invention, the first shock absorber includes a fixed cylinder fixed by screws on the inner wall of the cabinet body, a piston is slidably connected inside the fixed cylinder, a connecting rod is fixed to the end of the piston away from the fixed cylinder, the connecting rod extends out of the fixed cylinder, the screws are installed on the side of the protective frame, a first spring is fixed between the piston and the bottom of the fixed cylinder, and the fixed cylinder is arranged along the four corners of the cabinet body.

[0010] As a preferred solution of the present invention, the protection frame includes a plurality of L-shaped sheet metal parts, and the plurality of L-shaped sheet metal parts are fixed with screws. A plurality of mounting plates are fixed inside the protection frame for installing the electrical control module.

[0011] As a preferred solution of the present invention, the second shock absorber includes a connecting plate fixed to the rear cover plate by screws, inner buffer plates are integrally fixed at both ends of the connecting plate, outer buffer plates are provided on the sides of the inner buffer plate, negative Poisson's ratio structural units are bonded and fixed between the inner buffer plate and the outer buffer plate, several negative Poisson's ratio structural units are extended along the length direction of the inner buffer plate, and several negative Poisson's ratio structural units are also extended along the height direction of the inner buffer plate, all the negative Poisson's ratio structural units completely cover the entire inner buffer plate, and two negative Poisson's ratio structural units are bonded to each other.

[0012] As a preferred embodiment of the present invention, the negative Poisson's ratio structural unit includes an alloy frame, which is arranged in a circular shape. Each negative Poisson's ratio structural unit includes four alloy frames, each alloy frame has a fin integrally fixed on the side, and four fins are arranged along the circumferential direction of the alloy frame. The four alloy frames are bonded and fixed by the fins. Each negative Poisson's ratio structural unit is bonded to the inner buffer plate or the outer buffer plate through the fins. A star-shaped inner connecting frame is welded inside the alloy frame, and the inner connecting frame is bonded with a TPU elastomer through a high-elastic composite resin, and the TPU elastomer completely fills the inner connecting frame.

[0013] As a preferred solution of the present invention, a recessed hole is provided on the upper end of the connecting plate, and a plug-in rod is fixed on the lower end. The plug-in rod and the recessed hole are interference fit, and the number of the plug-in rod and the recessed hole are set to be consistent. A number of air holes are evenly distributed on the inner buffer plate and the outer buffer plate.

[0014] As a preferred solution of the present invention, a cross bar and a base are respectively fixed at both ends of the heat dissipation groove, the cross bar is rotatably connected to the movable leaf, two bases are symmetrically provided about the middle of the heat dissipation groove, a driving rod is slidably connected between the two bases, the driving rod passes through all the movable leafs, the driving rod is fixed to the movable leafs, a baffle is fixed to the end of the driving rod near one of the bases, a second spring is fixed between the baffle and the base, two ends of the second spring are respectively fixed to the baffle and the base, a cam is abutted against the end of the driving rod near the other base, the cam is connected to the driving motor, and the driving motor bolts are mounted on the rear cover.

[0015] As a preferred solution of the present invention, a mounting groove is provided on the top of the cabinet, a cooling fan is bonded inside the mounting groove, a heat sink is screwed to the end of the cooling fan facing the inside of the cabinet, a semiconductor refrigeration sheet is bonded to the end of the heat sink away from the cooling fan, a cooling block is bonded to the other side of the semiconductor refrigeration sheet, and the cooling fan is connected in series with the driving motor.

[0016] As a preferred solution of the present invention, the clamping part includes a bottom plate fixed to the inner wall of the cabinet, the bottom plate is fixed on both sides of the through groove, a soft rubber board is bonded to the side of the bottom plate away from the through groove, a pressure plate is provided above the soft rubber board, a rotating rod is fixed to the end of the pressure plate away from the soft rubber board, the rotating rod is rotatably connected to the inner wall of the cabinet, a support rod is also fixed on the rotating rod, the support rod is hingedly connected to a top touch plate away from the hinge point, and the pressure plate is symmetrically arranged about the middle of the soft rubber board.

[0017] As a preferred solution of the present invention, a waterproof sealing strip is bonded to the cabinet door on the side facing the cabinet body.

[0018] In summary, the beneficial technical effects of the present invention are:

[0019] 1. Double shock-absorbing parts are arranged inside the cabinet. In the first shock-absorbing part, a damping structure is formed by a fixed cylinder, an internal piston and a first spring structure. In the second shock-absorbing part, a negative Poisson's ratio structural unit is used for shock absorption. The specific Poisson's ratio structural unit is composed of an alloy frame and an internal TPU elastomer, which changes the traditional negative Poisson's ratio structure of alloy material, thereby improving its rebound performance on the basis of the existing negative Poisson's ratio structure. At the same time, the negative Poisson's ratio structural units are connected by a triangular structure. After being connected at their vertices, a number of triangular structures are formed between the inner buffer plate and the outer buffer plate, which effectively improves the stability of the overall second shock-absorbing part. At the same time, combined with its rebound performance, the electrical control module inside the protection frame is provided with a second level of shock absorption protection;

[0020] 2. When installing electrical control equipment such as voltmeters, ammeters, control boxes and other electrical equipment inside the slots by using the pressing parts, the gaps at the slots can be reduced to improve the waterproof and dustproof performance. At the same time, waterproof sealing strips can be bonded inside the cabinet doors to further improve the waterproof performance.

[0021] 3. A remotely controllable heat dissipation structure is set inside the cabinet, which can intermittently discharge the internal cold air, so that the airflow inside the cabinet is conducted and the heat is quickly dissipated through the cold air. When the internal temperature exceeds the limit, the heat dissipation can be quickly controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of an electrical control cabinet with electrical component protection function according to the present embodiment;

[0024] Figure 2 This is a schematic diagram of an electrical control cabinet with an electrical component protection function opened in this embodiment;

[0025] Figure 3 This is a schematic cross-sectional view of an electrical control cabinet with an electrical component protection function according to the present embodiment;

[0026] Figure 4 This is a schematic diagram of the structure of a second shock absorbing member of an electrical control cabinet with an electrical component protection function according to the present embodiment;

[0027] Figure 5 This is a loose-leaf structure schematic diagram of an electrical control cabinet with electrical component protection function in this embodiment;

[0028] Figure 6 This is an electrical control cabinet with electrical component protection function in this embodiment. Figure 2 The enlarged schematic diagram at A in the middle;

[0029] Figure 7 This is an electrical control cabinet with electrical component protection function in this embodiment. Figure 4 The enlarged schematic diagram of point B in the middle;

[0030] Figure 8 This is an electrical control cabinet with electrical component protection function in this embodiment. Figure 3 Enlarged schematic diagram at point C in the middle.

[0031] In the figure, 1, cabinet body; 2, cabinet door; 3, protection frame; 4, back cover; 5, heat dissipation groove; 6, loose leaf; 7, through groove; 8, fixed cylinder; 9, piston; 10, connecting rod; 11, first spring; 12, connecting plate; 13, inner buffer plate; 14, outer buffer plate; 15, alloy frame; 16, inner connecting frame; 17, TPU elastomer; 18, concave hole; 19, plug-in rod; 20, air hole; 21, cross bar; 22, base; 23, driving rod; 24, baffle; 25, second spring; 26, cam; 27, driving motor; 28, mounting groove; 29, cooling fan; 30, heat sink; 31, semiconductor refrigeration plate; 32, cooling block; 33, bottom plate; 34, soft rubber plate; 35, pressure plate; 36, rotating rod; 37, support rod; 38, top touch plate; 39, waterproof sealing strip; 40, fin. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-8 The present invention provides a technical solution: it includes a cabinet 1, a cabinet door 2 hingedly connected to one side of the cabinet 1, the cabinet door 2 is fixed to the cabinet 1 by a lock at the end away from the hinge point, a first shock-absorbing member is screwed fixed inside the cabinet 1, a protective frame 3 is screwed fixed to the end of the first shock-absorbing member away from the cabinet 1, an electrical control module is installed inside the protective frame 3, a second shock-absorbing member is arranged between the protective frame 3 and the cabinet 1, a rear cover plate 4 is screwed fixed to the side of the cabinet 1 opposite to the cabinet door 2, a heat dissipation groove 5 is arranged on the rear cover plate 4, a plurality of hinges 6 are rotatably connected inside the heat dissipation groove 5, a through groove 7 is arranged on the cabinet door 2, the through groove 7 is used to plug in the electrical control equipment, a pressing piece is arranged on the side of the through groove 7, and the pressing piece is located in the direction of the through groove 7 toward the cabinet 1.

[0035] The pressing parts include a bottom plate 33 fixed to the inner wall of the cabinet door 2, the bottom plate 33 is fixed on both sides of the through groove 7, a soft rubber board 34 is bonded to the bottom plate 33 away from the through groove 7, a pressing plate 35 is provided above the soft rubber board 34, a rotating rod 36 is fixed to the end of the pressing plate 35 away from the soft rubber board 34, the rotating rod 36 is rotatably connected to the inner wall of the cabinet door 2, a supporting rod 37 is also fixed to the rotating rod 36, the supporting rod 37 is hingedly connected to a top touch plate 38 away from the hinge point, and the pressing plate 35 is symmetrically arranged about the middle part of the soft rubber board 34.

[0036] At the same time, a waterproof sealing strip 39 is bonded to the side of the cabinet door 2 facing the cabinet body 1 .

[0037] In the above structure, by using the pressing piece, when installing electrical control equipment inside the through groove 7, such as voltmeters, ammeters, control boxes and other electrical equipment, as the electrical equipment is inserted, it will resist the top touch plate 38 and move toward the inside of the cabinet door 2, and then when the top touch plate 38 moves, it drives the support rod 37 to move toward the inside of the cabinet door 2, and then the support rod 37 drives the rotating rod 36 to rotate toward the cabinet door 2 near the end of the rotating rod 36, and then drives the pressure plate 35 to rotate toward the end of the soft rubber plate 34, and the pressure plate 35 squeezes the soft rubber plate 34 to move toward the edge of the through groove 7, and then seals the edge of the through groove 7, and at the same time, pressure is applied to the bottom plate 33 and the cabinet door 2 to keep the cabinet door 2 and the electrical equipment tightly pressed, thereby reducing the gap at the installation of the through groove 7 and improving the waterproof and dustproof performance. At the same time, a waterproof sealing strip 39 is bonded to the inside of the cabinet door 2 to further improve the waterproof performance.

[0038] A double shock-absorbing component is arranged inside the cabinet 1 for shock absorption, thereby protecting the electrical module installed inside, wherein the first shock-absorbing component includes a fixed cylinder 8 fixed to the inner wall of the cabinet 1 by screws, a piston 9 is slidably connected inside the fixed cylinder 8, a connecting rod 10 is fixed to the end of the piston 9 away from the fixed cylinder 8, the connecting rod 10 extends out of the fixed cylinder 8, and is screwed on the side of the protection frame 3, a first spring 11 is fixed between the piston 9 and the bottom of the fixed cylinder 8, and the fixed cylinder 8 is arranged along the four corners of the cabinet 1.

[0039] The protection frame 3 includes a plurality of L-shaped sheet metal parts, which are fixed with screws. A plurality of mounting plates are fixed inside the protection frame 3 for mounting the electric control module.

[0040] In the first shock absorbing member, the fixing cylinder 8 and the internal piston 9 and the first spring 11 are structured as follows. Figure 8 As shown, a damping hole is arranged on the fixed cylinder 8, and a damping structure is formed by the above structure. When the protective frame 3 is subjected to external pressure, the gap between the protective frame 3 and the cabinet 1 is reduced, and the protective frame 3 drives the connecting rod 10 to move toward the cabinet 1. At this time, the piston 9 squeezes the first spring 11, and the piston 9 moves inside the fixed cylinder 8 at the same time, and then releases energy through the friction between the piston 9 and the fixed cylinder 8 and the contraction of the first spring 11, thereby reducing the impact and achieving the first shock absorption effect.

[0041] In addition, the second shock absorber includes a connecting plate 12 fixed by screws on the rear cover plate 4, inner buffer plates 13 are integrally fixed at both ends of the connecting plate 12, outer buffer plates 14 are provided on the side of the inner buffer plate 13, and negative Poisson's ratio structural units are bonded and fixed between the inner buffer plate 13 and the outer buffer plate 14. Several negative Poisson's ratio structural units are extended along the length direction of the inner buffer plate 13, and several negative Poisson's ratio structural units are also extended along the height direction of the inner buffer plate 13. All negative Poisson's ratio structural units completely cover the entire inner buffer plate 13, and two negative Poisson's ratio structural units are bonded to each other.

[0042] The negative Poisson's ratio structural unit includes an alloy frame 15, which is arranged in a circular shape. Each negative Poisson's ratio structural unit includes four alloy frames 15. A fin 40 is integrally fixed to the side of each alloy frame 15. Four fins 40 are arranged along the circumferential direction of the alloy frame 15. The four alloy frames 15 are bonded and fixed by the fins 40. Each negative Poisson's ratio structural unit is bonded to the inner buffer plate 13 or the outer buffer plate 14 through the fins 40. A star-shaped inner connecting frame 16 is welded inside the alloy frame 15. The inner connecting frame 16 is bonded with a TPU elastomer 17 through a high-elastic composite resin, and the TPU elastomer 17 completely fills the inner connecting frame 16.

[0043] In the second shock-absorbing component, a negative Poisson's ratio structural unit is used for shock absorption. The specific Poisson's ratio structural unit is composed of an alloy frame 15 and an internal TPU elastomer 17, which changes the negative Poisson's ratio structure of the traditional alloy material, and further improves its rebound performance on the basis of the existing negative Poisson's ratio structure. At the same time, the negative Poisson's ratio structural units are connected by fins 40, and then the internal negative Poisson's ratio structure is squeezed after the external buffer plate is subjected to force. First, the four alloy frames 15 in each negative Poisson's ratio structural unit rotate toward the center of the four alloy frames 15. Secondly, the extruded TPU elastomer inside the alloy frame 15 forms a double-level energy release and shock absorption effect, thereby performing a second level of shock absorption protection for the electrical control module inside the protective frame 3.

[0044] Specifically, the negative Poisson's ratio structure is a new metamaterial structure, and its advantageous energy absorption characteristics can well meet the requirements of flexible energy absorption devices. The negative Poisson's ratio structure currently proposed mostly uses plastic material aluminum alloy. Although it can achieve lightweight and high energy absorption characteristics, it lacks the ability of elastic materials to restore the original structural state after impact. The aluminum alloy itself is severely damaged after impact, and the excessive stiffness during initial contact will also cause damage to the hull; therefore, in this embodiment, the plastic material and the elastic material are combined to improve the energy absorption characteristics of the overall structure through the complementary advantages of the two, and the alloy frame 15 with a high elastic deformation TPU elastomer combined with an aluminum alloy matrix is ​​used; when subjected to a force perpendicular to the outer buffer plate 14, that is, under a longitudinal velocity load, the alloy frame 15 first rotates, causing the entire energy absorption structure to have an obvious lateral contraction trend, showing a negative Poisson's ratio effect; under the continuous action of the force, the circular structure outside the alloy frame begins to buckle and deform, and then squeezes the internal TPU elastomer through the internal connecting frame 16.

[0045] At the same time, a recessed hole 18 is provided at the upper end of the connecting plate 12, and a plug-in rod 19 is fixed at the lower end. The plug-in rod 19 is interference fit with the recessed hole 18, and the number of the plug-in rod 19 and the recessed hole 18 is set to be consistent. The inner buffer plate 13 and the outer buffer plate 14 are evenly distributed with a plurality of air holes 20, so that the connecting plate 12 can be connected up and down in multiple ways to install different numbers of connecting plates 12 according to different cabinet 1 heights. At the same time, air holes 20 are set on the inner buffer plate 13 and the outer buffer plate 14 for internal heat dissipation to avoid completely wrapping the protective frame 3 and reduce the impact on the operation of the electrical module.

[0046] A heat dissipation slot 5 is arranged on the rear cover plate 4, wherein a cross bar 21 and a base 22 are fixed at both ends of the heat dissipation slot 5 respectively, the cross bar 21 is rotatably connected to the hinge 6, two bases 22 are symmetrically arranged about the middle of the heat dissipation slot 5, a driving rod 23 is slidably connected between the two bases 22, the driving rod 23 passes through all the hinges 6, the driving rod 23 is fixed to the hinge 6, a baffle 24 is fixed to the end of the driving rod 23 near one of the bases 22, a second spring 25 is fixed between the baffle 24 and the base 22, two ends of the second spring 25 are respectively fixed to the baffle 24 and the base 22, a cam 26 is abutted against the end of the driving rod 23 near the other base 22, the cam 26 is connected to a driving motor 27, and the driving motor 27 is bolted to the rear cover plate 4. After the driving motor 27 is turned on, the driving motor 27 can drive the cam 26 to rotate, and then when the cam 26 rotates to a state of conflict with the driving rod 23, as the cam 26 continues to rotate, it can conflict with the driving rod 23, causing it to slide along the inside of the base 22, thereby compressing the second spring 25 at the other end. After the cam 26 continues to rotate, it no longer conflicts with the driving rod 23. At this time, the second spring 25 is reset. After the second spring 25 is reset, the driving rod 23 is reset to its initial state, and when the driving rod 23 moves, it can drive all the hinges 6 to rotate along the rotation point at the horizontal plate, and then when the driving motor 27 is in a punched state, the hinges 6 continue to rotate and reset, so that the heat dissipation slot 5 can be intermittently covered. When the heat dissipation slot 5 is not covered, the gas inside the cabinet 1 can flow out through the heat dissipation slot 5.

[0047] At the same time, a mounting groove 28 is provided on the top of the cabinet 1, and a cooling fan 29 is bonded inside the mounting groove 28. A heat sink 30 is screwedly fixed to the end of the cooling fan 29 facing the inside of the cabinet 1, a semiconductor cooling sheet 31 is bonded to the end of the heat sink 30 away from the cooling fan 29, and a cooling block 32 is bonded to the other side of the semiconductor cooling sheet 31. The cooling fan 29 is connected in series with the driving motor 27, wherein the hot surface of the semiconductor cooling sheet 31 is bonded to the heat sink 30, and the cold surface of the semiconductor cooling sheet 31 is bonded to the cooling block 32, and both bondings are performed with silicone grease. Then, after the cooling fan 29 is turned on, the airflow passes through the heat sink 30 and then the semiconductor cooling sheet 31 for cooling, and the cold air is dispersed into the inside of the cabinet 1 through the cooling block 32. When the cooling fan 29 is turned on, the driving motor 27 therein is also in an turned-on state, so that the internal cold air can be discharged intermittently, so that the airflow inside the cabinet 1 is conducted and the heat is quickly dissipated by the cold air.

[0048] The working principle of the present invention is as follows: the cabinet body 1 is made of an alloy plate reinforced with low-shrinkage unsaturated polyester glass fiber sheet film plastic, and a waterproof sealing strip 39 is arranged on the cabinet door 2 at the open part, and in combination with the pressing piece at the through groove 7 of the cabinet door 2, the waterproof performance of the electrical control cabinet can reach IP68 level. At the same time, a protective frame 3 is arranged inside the cabinet body 1, and the protective frame 3 is used for installing the electrical module. A damping structure in the shape of a fixed cylinder 8 and a plurality of negative Poisson's ratio structural units are arranged between the protective frame 3 and the cabinet body 1 for shock absorption protection. At the same time, a remotely controllable heat dissipation structure is arranged inside the cabinet body 1 to fully protect the internal electrical control module from different aspects.

[0049] In particular, in actual use, the top of the installation slot is sealed by a cover driven by a cylinder. In normal use, the cover is in a closed state. This structure is not shown in the figure.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrical control cabinet with electrical component protection function, characterized in that: The cabinet (1) comprises a cabinet body (1), a cabinet door (2) being hingedly connected to one side of the cabinet body (1), the cabinet door (2) being fixed to the cabinet body (1) via a lock at an end away from the hinge point, a first shock absorbing member being fixed to the cabinet body (1) via screws, a protective frame (3) being fixed to the end of the first shock absorbing member away from the cabinet body (1) via screws, an electrical control module being mounted inside the protective frame (3), a second shock absorbing member being arranged between the protective frame (3) and the cabinet body (1), a rear cover plate (4) being fixed to the cabinet body (1) via screws on the side opposite to the cabinet door (2), The rear cover plate (4) is provided with a heat dissipation groove (5), and a plurality of hinges (6) are rotatably connected inside the heat dissipation groove (5). The cabinet door (2) is provided with a through groove (7), and the through groove (7) is used to plug in the electrical control equipment. A pressing piece is provided on the side of the through groove (7), and the pressing piece is located in the direction of the through groove (7) toward the cabinet body (1). The second shock absorbing member comprises a connecting plate (12) fixed on the rear cover plate (4) by screws, and inner buffer plates (13) are integrally fixed at both ends of the connecting plate (12), and the side of the inner buffer plate (13) is provided with an outer The buffer plate (14) is provided with a negative Poisson's ratio structural unit bonded and fixed between the inner buffer plate (13) and the outer buffer plate (14). A plurality of negative Poisson's ratio structural units are provided along the length direction of the inner buffer plate (13). A plurality of negative Poisson's ratio structural units are provided along the height direction of the inner buffer plate (13). All negative Poisson's ratio structural units completely cover the entire inner buffer plate (13). Two negative Poisson's ratio structural units are bonded to each other. The pressing member includes a bottom plate (33) fixed to the inner wall of the cabinet door (2). The bottom plate (3 3) fixed on both sides of the through groove (7), a soft rubber plate (34) is bonded to the bottom plate (33) away from the through groove (7), a pressing plate (35) is provided above the soft rubber plate (34), a rotating rod (36) is fixed to the end of the pressing plate (35) away from the soft rubber plate (34), the rotating rod (36) is rotatably connected to the inner wall of the cabinet door (2), a supporting rod (37) is also fixed to the rotating rod (36), the supporting rod (37) is hingedly connected to a top contact plate (38) away from the hinge point, and the pressing plate (35) is symmetrically arranged with respect to the middle part of the soft rubber plate (34).

2. The electrical control cabinet with electrical component protection function according to claim 1, characterized in that: The first shock-absorbing component comprises a fixing cylinder (8) fixed on the inner wall of the cabinet (1) by screws, a piston (9) is slidably connected inside the fixing cylinder (8), a connecting rod (10) is fixed at the end of the piston (9) away from the fixing cylinder (8), the connecting rod (10) extends out of the fixing cylinder (8), the screws are installed on the side of the protection frame (3), a first spring (11) is fixed between the piston (9) and the bottom of the fixing cylinder (8), and the fixing cylinder (8) is arranged along the four corners of the cabinet (1).

3. The electrical control cabinet with electrical component protection function according to claim 1, characterized in that: The protection frame (3) comprises a plurality of L-shaped sheet metal parts, the plurality of L-shaped sheet metal parts are fixed with screws, and a plurality of mounting plates are fixed inside the protection frame (3) for mounting an electrical control module.

4. The electrical control cabinet with electrical component protection function according to claim 1, characterized in that: The negative Poisson's ratio structural unit comprises an alloy frame (15), the alloy frame (15) is arranged in a circular shape, each negative Poisson's ratio structural unit comprises four alloy frames (15), each alloy frame (15) is integrally fixed with a fin (40) on the side, four fins (40) are arranged along the circumferential direction of the alloy frame, the four alloy frames are bonded and fixed by the fins (40), each negative Poisson's ratio structural unit is bonded to an inner buffer plate (13) or an outer buffer plate (14) through the fins (40), a star-shaped inner connecting frame (16) is welded inside the alloy frame (15), the inner connecting frame (16) is bonded with a TPU elastomer (17) through a high-elasticity composite resin, and the TPU elastomer (17) completely fills the inner connecting frame (16).

5. The electrical control cabinet with electrical component protection function according to claim 1, characterized in that: The upper end of the connecting plate (12) is provided with a concave hole (18), and the lower end is fixed with a plug rod (19), the plug rod (19) and the concave hole (18) are interference fit, and the number of the plug rod (19) and the number of the concave holes (18) are set to be consistent, and a plurality of air holes (20) are evenly distributed on the inner buffer plate (13) and the outer buffer plate (14).

6. The electrical control cabinet with electrical component protection function according to claim 1, characterized in that: A cross bar (21) and a base (22) are fixed at both ends of the heat dissipation groove (5), the cross bar (21) is rotatably connected to the movable leaf (6), two bases (22) are symmetrically provided about the middle of the heat dissipation groove (5), a driving rod (23) is slidably connected between the two bases (22), the driving rod (23) passes through all the movable leafs (6), the driving rod (23) is fixed to the movable leaf (6), a baffle (24) is fixed at the end of the driving rod (23) close to one of the bases (22), a second spring (25) is fixed between the baffle (24) and the base (22), two ends of the second spring (25) are respectively fixed to the baffle (24) and the base (22), a cam (26) is abutted at the end of the driving rod (23) close to the other base (22), the cam (26) is connected to a driving motor (27), and the driving motor (27) is bolted to the rear cover (4).

7. The electrical control cabinet with electrical component protection function according to claim 6, characterized in that: The cabinet (1) is provided with a mounting groove (28) at the top, a heat dissipation fan (29) is bonded inside the mounting groove (28), a heat sink (30) is screwedly fixed to the end of the heat dissipation fan (29) facing the inside of the cabinet (1), a semiconductor cooling sheet (31) is bonded to the end of the heat dissipation sheet (30) away from the heat dissipation fan (29), a cooling block (32) is bonded to the other side of the semiconductor cooling sheet (31), and the heat dissipation fan (29) is connected in series with the driving motor (27).

8. The electrical control cabinet with electrical component protection function according to claim 1, characterized in that: A waterproof sealing strip (39) is bonded to the cabinet door (2) on the side facing the cabinet body (1).

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