Environment-friendly and energy-saving electrical equipment

Abstract

The invention discloses environment-friendly and energy-saving electrical equipment, and relates to the technical field of electrical equipment.The environment-friendly and energy-saving electrical equipment comprises an electrical cabinet, an opening is formed in the front face of the electrical cabinet, a cabinet door is rotatably installed on the opening, a sliding groove is formed in the inner wall of the cabinet door in the height direction of the cabinet door, and a plurality of ventilation through holes are formed in the cabinet door; a main fan is slidably arranged in the sliding groove, one end of a rotating shaft of the main fan penetrates through the cabinet door and extends towards the outside of the electrical cabinet, and the other end of the rotating shaft of the main fan is movably connected with the output end of a driving motor through a clamping assembly. The auxiliary fan is additionally arranged in the electrical cabinet, and the main fan slidably mounted on the cabinet door is connected with the auxiliary fan through the double-step sleeve and the linkage structure, so that the main fan and the auxiliary fan can perform targeted fixed-point heat dissipation on electrical equipment at different height positions in a longitudinal synchronous movement mode; and the heat dissipation intensity of some electrical facilities with high heating power is improved, so that the overall heat dissipation efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to an environmentally friendly and energy-saving electrical equipment. Background Art

[0002] An electrical equipment cabinet, also called a control cabinet, is a closed or semi-closed metal cabinet or screen that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment according to electrical wiring requirements. Existing electrical equipment cabinets usually have cooling fans installed on the cabinet doors for continuous heat dissipation to ensure their normal operation.

[0003] However, at present, electrical equipment in electrical cabinets are usually installed in a deeper position in the cabinet, with a certain distance between it and the cabinet door. In addition, the electrical facilities in the cabinet have different power and different start and stop times, resulting in uneven heat distribution inside the electrical cabinet. Relying solely on the existing cooling fans fixed on the cabinet door cannot provide targeted heat dissipation for the electrical equipment on each layer, resulting in low heat dissipation efficiency and easily increasing equipment energy consumption. Summary of the invention

[0004] The object of the present invention is to provide an environmentally friendly and energy-saving electrical device to solve the technical problem in the prior art that the heat dissipation efficiency is low due to the heat dissipation fan being fixedly installed at a position far away from the electrical device.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: An environmentally friendly and energy-saving electrical device, comprising an electrical cabinet, wherein an opening is provided on the front of the electrical cabinet, a cabinet door is rotatably mounted on the opening, a slide groove is provided on the inner wall of the cabinet door along the height direction of the cabinet door, a plurality of ventilation holes are arranged on the cabinet door, a main fan is slidably arranged in the slide groove, one end of the rotating shaft of the main fan passes through the cabinet door and extends toward the outside of the electrical cabinet, and the other end is movably connected to the output end of a driving motor through a clamping assembly, and the driving motor is mounted on the top of the electrical cabinet through a telescopic assembly; A double-stage sleeve, wherein the double-stage sleeve is composed of two sleeves connected in sequence, and the adjacent sleeves are connected by a screw thread. The top of the double-stage sleeve is installed on the top of the electrical cabinet, and the bottom of the double-stage sleeve is rotatably connected to a mounting box, wherein a plurality of auxiliary fans are arranged in the mounting box, and the auxiliary fans are connected to a driving source; The output end of the driving motor is connected to the end sleeve below the two-stage sleeve through a linkage structure to synchronously drive the main fan to rotate and the two-stage sleeve to telescope.

[0006] As a preferred solution of the present invention, the driving motor is a coaxial dual-shaft motor, the output end of one side of the driving motor is connected to the rotating shaft of the main fan, and the output end of the other side is arranged toward the double-stage sleeve; The linkage structure includes a first bevel gear and a second bevel gear. The first bevel gear is fixedly mounted on the end sleeve below the two-stage sleeve, and the second bevel gear is fixedly mounted on the output end of the drive motor toward the two-stage sleeve. The first bevel gear is meshingly connected with the second bevel gear.

[0007] As a preferred solution of the present invention, the rotating shaft is axially slidably arranged on the cabinet door, one end of the rotating shaft passes through the middle of the main fan, extends to the outside of the cabinet door and is connected to a handle; The clamping assembly comprises a limit frame and a clamping joint, wherein the limit frame is fixedly arranged on the output end of the driving motor, an avoidance notch is provided on the limit frame, and a special-shaped limit plug hole is also provided on the limit frame, wherein the horizontal long hole of the special-shaped limit plug hole is in an arc shape and is connected to the avoidance notch, and an elastic blocking sheet is provided in the vertical short hole of the special-shaped limit plug hole; The card joint is arranged on the end of the rotating shaft facing the driving motor, and a limiting plug aligned with the special-shaped limiting socket is arranged on the card joint. The limiting plug is embedded in the horizontal long hole of the special-shaped limiting socket in an arc-shaped motion trajectory as the cabinet door rotates, and enters the short vertical hole of the special-shaped limiting socket by moving along the axial direction of the rotating shaft.

[0008] As a preferred solution of the present invention, movable grooves are provided on both side walls of the slide groove, and a first magnetic attraction sheet is provided on the side of the movable groove close to the drive motor; A limiting annular groove is provided on the rotating shaft, a double-headed auxiliary rod is sleeved in the limiting annular groove, both ends of the double-headed auxiliary rod respectively extend toward the movable groove, and second magnetic sheets are respectively provided at both ends of the double-headed auxiliary rod, the second magnetic sheet is located in the movable groove, and the second magnetic sheet is connected and disconnected with the first magnetic sheet as the rotating shaft moves axially.

[0009] As a preferred solution of the present invention, the double-headed auxiliary rod is rotatably installed in the limiting annular groove; The second magnetic sheet is provided with a through hole, and a limit rod is slidably arranged in the through hole; The two side walls of the movable groove are longitudinally provided with limit sliding grooves, and both ends of the limit rod are slidably arranged in the limit sliding grooves.

[0010] As a preferred solution of the present invention, the clamping assembly includes a limit frame and a clamping joint, the limit frame is fixedly arranged on the output end of the drive motor, the limit frame is provided with an avoidance notch, the limit frame is also provided with a limit insertion hole, the clamping joint is arranged on the end of the rotating shaft facing the drive motor, and the clamping joint is embedded in the limit frame as the cabinet door rotates; The card joint includes a matching frame fixedly mounted on the rotating shaft, a limiting column is slidably arranged on the frame wall of the matching frame, one end of the limiting column is located inside the matching frame and connected to an arc block, the arc block is connected to the inner wall of the limiting frame through a reset spring, the other end of the limiting column is arranged outside the limiting frame and aligned with the limiting socket, and the arc block drives the limiting column to slide outward and be inserted into the limiting socket through the pushing of a trigger member.

[0011] As a preferred solution of the present invention, the trigger member includes a sliding rod, which is coaxially slidably arranged inside the rotating shaft, one end of the sliding rod protrudes from the end of the rotating shaft, extends to the outside of the cabinet door and is connected to a handle, the other end of the sliding rod is arranged inside the matching frame and an extrusion head is arranged at the end, the extrusion head is arranged in a trapezoidal shape, the small head end of the extrusion head is arranged toward the arc block, a magnetic attraction part is arranged on the end face of the small head end of the extrusion head, a metal sheet is arranged on the frame wall of the matching frame opposite to the magnetic attraction part, and the mutual connection between the metal sheet and the magnetic attraction part is used to fix the extrusion head at the position of extruding the arc block.

[0012] As a preferred solution of the present invention, the driving source includes a plurality of rotating gears arranged side by side in the installation box, one side of the rotating gears is rotatably installed on the inner wall of the installation box through an optical axis, and the other end is fixedly installed with a secondary fan through the optical axis, the outer parts of the plurality of rotating gears are meshedly connected with an annular chain belt, the middle part of the annular chain belt is meshedly connected with a driving gear, the driving gear is coaxially fixedly connected with the output end of the driving motor, and an overcurrent gap is provided on the box wall of the installation box close to the driving motor.

[0013] As a preferred solution of the present invention, the cross-sections of the blades of the main fan and the auxiliary fan are both S-shaped, and the width of the S-shaped blades gradually increases from the root position to the outer end position.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adds an auxiliary fan in the electrical cabinet, and connects the main fan slidably mounted on the cabinet door to the auxiliary fan through a double-stage sleeve and a linkage structure, so that the main fan and the auxiliary fan can perform targeted fixed-point heat dissipation for electrical equipment located at different heights through longitudinal synchronous movement, thereby improving the heat dissipation intensity of certain electrical facilities with high heat power, thereby making the overall heat dissipation efficiency higher.

[0015] 2. The present invention uses a driving motor to synchronously drive the main fan and the auxiliary fan to rotate and the double-stage sleeve to rotate and retract through structural arrangement, thereby reducing the number of electrical components used and improving the overall energy-saving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall cutaway structure of the present invention; Figure 2 It is a schematic diagram of the external structure of the present invention; Figure 3 is a side view of the cabinet door of the present invention; Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle; Figure 5 For the present invention Figure 3 The enlarged view of point B in the middle; Figure 6 For the present invention Figure 3 Enlarged view of point C in the middle; Figure 7 It is a schematic diagram of the overall structure of the second embodiment of the clamping assembly of the present invention; Figure 8 It is a schematic diagram of the partial cutaway structure of the present invention; Fig. 9 For the present invention Figure 8 The enlarged view of point D in the middle; Fig.10 It is a schematic diagram of the structure of the connection between the limit frame and the card joint in the present invention; Fig.11 It is a structural schematic diagram of the main fan in the present invention.

[0018] The numbers in the figure represent the following: 1. Electrical cabinet; 2. Cabinet door; 3. Slide; 4. Ventilation perforation; 5. Main fan; 6. Snap-on assembly; 7. Drive motor; 8. Telescopic assembly; 9. Double-stage sleeve; 10. Sleeve; 11. Mounting box; 12. Auxiliary fan; 13. First bevel gear; 14. Second bevel gear; 15. Limiting frame; 16. Snap-on joint; 17. Avoidance gap; 18. Limiting jack; 19. Rotating shaft; 20. Matching frame; 21. Limiting column; 22. Arc block; 23 , reset spring; 24, slide bar; 25, draw handle; 26, extrusion head; 27, first magnetic sheet; 28, metal sheet; 29, elastic barrier; 30, limit plug; 31, movable groove; 32, limit annular groove; 33, double-headed auxiliary rod; 34, limit rod; 35, rotating gear; 36, annular chain belt; 37, driving gear; 38, overcurrent gap; 39, special-shaped limit socket; 40, second magnetic sheet; 41, magnetic element; 42, limit slide groove. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1: like Figures 1 to 3 As shown, the present invention provides an environmentally friendly and energy-saving electrical device, including an electrical cabinet 1, an opening is provided on the front of the electrical cabinet 1, and a cabinet door 2 is rotatably installed on the opening, that is, a vertical side surface of the cabinet door 2 is rotatably hinged with the opening, a slide groove 3 is provided on the inner wall of the cabinet door 2 along the height direction of the cabinet door 2, a plurality of ventilation holes 4 are arranged on the cabinet door 2, a main fan 5 is slidably arranged in the slide groove 3, one end of the rotating shaft 19 of the main fan 5 passes through the cabinet door 2 and extends toward the outside of the electrical cabinet 1, a vertical slot hole for the rotating shaft 19 to slide up and down is provided on the cabinet door 2, and the other end is movably connected to the output end of the driving motor 7 through a clamping assembly 6, and the driving motor 7 is installed on the top of the electrical cabinet 1 through a telescopic assembly 8.

[0021] The double-stage sleeve 9 is composed of two sleeves 10 which are connected in sequence, and the adjacent sleeves 10 are spirally connected by a thread. The top of the two-stage sleeve 9 is installed on the top of the electrical cabinet 1, and the bottom of the two-stage sleeve 9 is rotatably connected to a mounting box 11. A plurality of auxiliary fans 12 are arranged in the mounting box 11, and the auxiliary fans 12 are connected to a driving source.

[0022] The output end of the driving motor 7 is connected to the end sleeve 10 below the two-step sleeve 9 through a linkage structure to synchronously drive the main fan 5 to rotate and the two-step sleeve 9 to telescope.

[0023] The driving motor 7 is a coaxial double-shaft motor. The output end on one side of the driving motor 7 is connected to the rotating shaft 19 of the main fan 5 , and the output end on the other side is arranged toward the double-stage sleeve 9 .

[0024] like Figure 1 As shown, the linkage structure includes a first bevel gear 13 and a second bevel gear 14. The first bevel gear 13 is fixedly mounted on the end sleeve 10 below the two-step sleeve 9, and the second bevel gear 14 is fixedly mounted on the output end of the drive motor 7 toward the two-step sleeve 9. The first bevel gear 13 is meshedly connected with the second bevel gear 14.

[0025] like Figure 3 , Figure 4 and Fig.10 As shown, the rotating shaft 19 is axially slidably arranged on the cabinet door 2, and the card assembly 6 includes a limit frame 15 and a card joint 16. The limit frame 15 is fixedly arranged on the output end of the driving motor 7. An avoidance gap 17 is opened on the limit frame 15. The limit frame 15 is also provided with a special-shaped limit socket 39. The horizontal long hole of the special-shaped limit socket 39 is arc-shaped and is connected to the avoidance gap 17. An elastic barrier 29 is arranged in the vertical short hole of the special-shaped limit socket 39.

[0026] The card joint 16 is arranged on the end of the rotating shaft 19 facing the driving motor 7, and a limiting pin 30 is arranged on the card joint 16 to align with the special-shaped limiting socket 39. The limiting pin 30 is embedded in the horizontal long hole of the special-shaped limiting socket 39 in a circular arc motion trajectory as the cabinet door 2 rotates, and enters the short vertical hole of the special-shaped limiting socket 39 by moving axially along the rotating shaft 19.

[0027] like Figure 5 and Figure 6 As shown, movable grooves 31 are arranged on both side walls of the slide groove 3 , and a first magnetic attraction sheet 27 is arranged on the side of the movable groove 31 close to the driving motor 7 .

[0028] A limiting annular groove 32 is provided on the rotating shaft 19, and a double-headed auxiliary rod 33 is sleeved in the limiting annular groove 32. Both ends of the double-headed auxiliary rod 33 extend toward the movable groove 31 respectively, and second magnetic sheets 40 are provided at both ends of the double-headed auxiliary rod 33 respectively. The second magnetic sheet 40 is located in the movable groove 31, and the second magnetic sheet 40 is connected and disconnected with the first magnetic sheet 27 as the rotating shaft 19 moves axially.

[0029] The double-headed auxiliary rod 33 is rotatably mounted in the limiting annular groove 32 .

[0030] The second magnetic sheet 40 is provided with a through hole, and a limit rod 34 is slidably disposed in the through hole.

[0031] Limiting sliding grooves 42 are longitudinally provided on both side walls of the movable groove 31 , and both ends of the limiting rod 34 are slidably disposed in the limiting sliding grooves 42 .

[0032] The driving source includes a plurality of rotating gears 35 arranged side by side in the installation box 11. One side of the rotating gears 35 is rotatably installed on the inner wall of the installation box 11 through the optical axis, and the other end is fixedly installed with the auxiliary fan 12 through the optical axis. The plurality of rotating gears 35 are externally meshed with an annular chain belt 36, and the middle part of the annular chain belt 36 is meshed with a driving gear 37. The driving gear 37 is coaxially fixedly connected to the output end of the driving motor 7. An overcurrent gap 38 is provided on the box wall of the installation box 11 close to the driving motor 7.

[0033] The cross-sections of the blades of the main fan 5 and the auxiliary fan 12 are both S-shaped, and the width of the S-shaped blades gradually increases from the root position to the outer end position.

[0034] The working principle of this environmental protection and energy-saving electrical equipment is: When the drive motor 7 is powered on and periodically rotates forward and reverse, its output end drives the main fan 5 to rotate in the chute 3 through the rotating shaft 19. At the same time, the rotating shaft 19 drives the double-stage sleeve 9 to rotate synchronously through the linkage structure. The double-stage sleeve 9 is formed by two sleeves 10 connected by a spiral. Therefore, the double-stage sleeve 9 synchronously performs linear lifting and lowering movements, thereby driving the installation box 11 below it to synchronously lift and lower. The drive motor 7 is installed on the electrical cabinet 1 by the telescopic component 8, so the drive motor 7 and the main fan 5 will synchronously move linearly up and down in the chute 3. Therefore, the auxiliary fan 12 and the main fan 5 move up and down to dissipate heat from the electrical facilities on each layer inside the electrical cabinet 1.

[0035] The location of the electrical facilities inside the electrical cabinet 1 in the present environmentally friendly and energy-saving electrical equipment is consistent with the existing electrical cabinets 1 on the market, that is, the electrical facilities are arranged on the side wall of the cabinet directly opposite the cabinet door 2 in the electrical cabinet 1 (not shown in the figure), and the electrical facilities are arranged along this side wall. The auxiliary fan 12 is arranged in front of the electrical facilities. There are no electrical facilities and wiring harnesses and other components in the space where the overall environmentally friendly and energy-saving electrical equipment is located in the electrical cabinet 1. It is originally used for space heat dissipation and for maintenance personnel to inspect and repair. The present environmentally friendly and energy-saving electrical equipment is arranged in this space. When the cabinet door 2 needs to be opened, it is driven by the driving motor 7 to rise to the top position without blocking the electrical facilities. The auxiliary fan 12 of the present environmentally friendly and energy-saving electrical equipment is located between the cabinet door 2 and the electrical facilities, and the main fan 5 is arranged on the cabinet door 2 directly opposite the electrical equipment, so that the auxiliary fan 12 and the main fan 5 form an exhaust channel to exhaust air directly from the electrical facilities.

[0036] The drive motor 7 uses a motor that can perform periodic forward and reverse conversion in the prior art. When the drive motor 7 switches forward and reverse, it can drive the sleeve 10 on the double-stage sleeve 9 to switch the rotation direction, thereby switching between extending downward and retracting upward. In other words, the forward and reverse conversion cycle set by the drive motor 7 is automatically switched when the main fan 5 and the auxiliary fan 12 move to the top position and the bottom position, so that the fan can reciprocate in the electrical cabinet 1 to exhaust and dissipate heat.

[0037] The two-stage sleeve 9 is formed by two sleeves 10 connected in a spiral connection. When the output shaft on the other side of the driving motor 7 rotates, the second bevel gear 14 thereon drives the first bevel gear 13 meshed with it to rotate, and the first bevel gear 13 is fixedly connected to the sleeve 10 at the bottom of the two-stage sleeve 9, and this section of the sleeve 10 is rotationally connected to the mounting box 11. Therefore, the rotation of the first bevel gear 13 can drive the sleeve 10 below the two-stage sleeve 9 to rotate when the mounting box 11 is fixed. Since this section of the sleeve 10 is threadedly connected to the sleeve 10 connected to it, when the sleeve 10 below rotates, it will rotate and fall due to the threaded connection, thereby forming the expansion or retraction of the two-stage sleeve 9, completing the rise and fall of the main fan 5, and forming reciprocating heat dissipation in the electrical cabinet 1.

[0038] In the specific setting, limit slide bars (not shown in the figure) can be fixedly arranged on both sides of the installation box 11, and the two ends of the limit slide bars are slidably arranged on the two inner side walls of the electrical cabinet 1 through the grooves. This ensures that when the double-step sleeve 9 rotates on the top of the installation box 11, the installation box 11 will not be driven to rotate synchronously due to friction.

[0039] In this environmentally friendly and energy-saving electrical equipment, the function of the telescopic component 8 is to provide a certain lifting and supporting force for the drive motor 7. In fact, the output shaft of the drive motor 7 penetrates the installation box 11 and probes into the interior of the installation box 11. Therefore, the suspended position of the drive motor 7 in the electrical cabinet 1 can be supported by the installation box 11. That is, the self-weight of the drive motor 7 is applied to the installation box 11 and is borne by the two-stage sleeve 9. Furthermore, in order to improve the stability of the environmentally friendly and energy-saving electrical equipment in actual application, a telescopic component 8 is added to be connected to the drive motor 7, and cooperates with the two-stage sleeve 9 to provide a lifting and supporting force for the drive motor 7.

[0040] Specifically, for the telescopic assembly 8 for setting the drive motor 7 on the top of the electrical cabinet 1, a telescopic rod in the prior art can be selected. The telescopic rod can be a telescopic gas rod or an ordinary telescopic rod with contact friction. It can be synchronously extended and retracted when the double-stage sleeve 9 is extended and retracted, and at the same time provide a certain pulling force for the drive motor 7 to counteract the self-weight of the drive motor 7.

[0041] For example, as an embodiment, the telescopic assembly 8 is formed by a plurality of cylinders with rough inner and outer walls, and the friction between adjacent cylinder walls can provide a certain pulling force for the driving motor 7 without affecting the normal lifting and lowering of the two-stage sleeve 9.

[0042] Or as a second embodiment, the telescopic assembly 8 is formed by a plurality of cylinders with smooth inner and outer walls, each cylinder end is provided with a rubber sealing ring, and the rubber sealing ring is used to contact the inner wall of the adjacent cylinder, and a vent hole is provided at the top position where the telescopic assembly 8 is connected to the electrical cabinet 1, so that the cylinder can be inhaled and released when it is telescoped. The whole is formed with a design similar to that of a syringe, thereby providing a pulling force for the drive motor 7, and when the double-stage sleeve 9 is telescoped, the double-stage sleeve 9 can overcome the pulling force between the telescopic assemblies 8, and move the overall environmentally friendly and energy-saving electrical equipment synchronously longitudinally. And the size of the pulling force can also be controlled by adjusting the size of the vent hole.

[0043] Alternatively, an electric cylinder electrically connected to the drive motor 7 may be directly used to directly provide a lifting force to the drive motor 7 on the one hand, and on the other hand, the falling rate of the drive motor 7 may be synchronized by coordinating the rotation of the drive motor 7 and adapting the falling rate of the two-stage sleeve 9.

[0044] Furthermore, during actual manufacturing, a limiting fixing frame may be additionally provided outside the first bevel gear 13 and the second bevel gear 14 to further stabilize the meshing connection between the first bevel gear 13 and the second bevel gear 14 .

[0045] Among them, the rotation of the auxiliary fan 12 can be driven by connecting the electrical component drive source separately. In this environmental protection and energy-saving electrical equipment, the rotation of the auxiliary fan 12 is driven by the driving motor 7. Specifically, when the driving motor 7 rotates, its output shaft drives the driving gear 37 located in the installation box 11 to rotate, and the driving gear 37 drives the annular chain belt 36 meshed with it to rotate, and the annular chain belt 36 synchronously drives other rotating gears 35 located inside it to rotate, thereby synchronously driving the auxiliary fan 12 on the rotating gear 35 to rotate, forming exhaust. For the linkage of multiple auxiliary fans 12, the prior art can also synchronize their rotation by adding a linkage gear between two adjacent rotating gears 35. However, in the specific production, if a linkage gear with a smaller diameter is used, a large number of small gears are required to cover the entire length of the installation box 11, which not only increases the production cost, but also increases the instability of the environmental protection and energy-saving electrical equipment. Using a linkage gear with a larger diameter can reduce the number of gears, but its larger surface area is easy to block the gap between adjacent rotating gears 35, resulting in the problem of poor ventilation.

[0046] Therefore, in the environmentally friendly and energy-saving electrical equipment, the rotating gear 35 is driven by the ring chain belt 36 to link, which can reduce the number of rotating gears 35 while reducing the diameter of the rotating gear 35, thereby achieving the purpose of reducing production costs and improving ventilation efficiency.

[0047] In addition, the cross-sections of the blades of the main fan 5 and the auxiliary fan 12 are both S-shaped, and the width of the S-shaped blades gradually increases from the root position to the outer end position. Fig.10 As shown, this S-shaped (or wavy) main fan 5 and auxiliary fan 12 can make the front and back sides of the fan blades have wind guide surfaces, and with the forward and reverse rotation function of the motor, the fan blades can achieve two-way air extraction. When used in this environmentally friendly and energy-saving electrical equipment, the main fan 5 and the auxiliary fan 12 can continuously suck air outwards regardless of whether they are moving up or down, thereby improving the exhaust and heat dissipation effect of this environmentally friendly and energy-saving electrical equipment.

[0048] In the above, the main fan 5 is installed on the cabinet door 2, and the cabinet door 2 is often opened during maintenance and inspection. Therefore, in this environmentally friendly and energy-saving electrical equipment, the main fan 5 and the output end of the drive motor 7 are movably connected together through the snap-fit ​​assembly 6. When the drive motor 7 moves to the top of the electrical cabinet 1, it stops rotating. The main fan 5 and the output end of the drive motor 7 are disconnected through the snap-fit ​​assembly 6, so that the cabinet door 2 can be opened normally and the electrical facilities inside the electrical cabinet 1 can be inspected.

[0049] After the inspection is completed and the cabinet door 2 is closed, the main fan 5 and the drive motor 7 are connected by the clamping assembly 6 to form an integral structure for subsequent rotation and exhaust. For the clamping assembly 6, two embodiments are provided, specifically: like Figure 4 and Fig.10 As shown, as embodiment 1, the card assembly 6 includes a limit frame 15 and a card joint 16, the rotating shaft 19 is axially slidably arranged on the cabinet door 2, one end of the rotating shaft 19 passes through the middle of the main fan 5 and extends to the outside of the cabinet door 2 and is connected to the pull handle 25, the limit frame 15 is fixedly arranged on the output end of the drive motor 7, and an avoidance gap 17 is opened on the limit frame 15. The limit frame 15 is also provided with a special-shaped limit socket 39, the horizontal long hole of the special-shaped limit socket 39 is arc-shaped and is connected to the avoidance gap 17, and an elastic barrier 29 is arranged in the vertical short hole of the special-shaped limit socket 39.

[0050] The clamping joint 16 is arranged on the end of the rotating shaft 19 facing the driving motor 7. The clamping joint 16 is provided with a limiting plug 30 aligned with the special-shaped limiting plug hole 39. The limiting plug 30 is embedded in the horizontal long hole of the special-shaped limiting plug hole 39 in an arc-shaped motion trajectory as the cabinet door 2 rotates (the horizontal long hole of the special-shaped limiting plug hole 39 is as shown in FIG. Figure 4As shown, it is set as a long hole with a certain curvature), and enters the short vertical hole of the special-shaped limiting plug hole 39 by moving along the axial direction of the rotating shaft 19.

[0051] Movable grooves 31 are arranged on both side walls of the slide groove 3 , and a first magnetic attraction sheet 27 is arranged on the side of the movable groove 31 close to the driving motor 7 .

[0052] A limiting annular groove 32 is provided on the rotating shaft 19, and a double-headed auxiliary rod 33 is sleeved in the limiting annular groove 32. Both ends of the double-headed auxiliary rod 33 extend toward the movable groove 31 respectively, and second magnetic sheets 40 are provided at both ends of the double-headed auxiliary rod 33 respectively. The second magnetic sheet 40 is located in the movable groove 31, and the second magnetic sheet 40 is connected and disconnected with the first magnetic sheet 27 as the rotating shaft 19 moves axially.

[0053] The double-headed auxiliary rod 33 is rotatably mounted in the limiting annular groove 32 .

[0054] The second magnetic sheet 40 is provided with a through hole, and a limit rod 34 is slidably disposed in the through hole.

[0055] Limiting sliding grooves 42 are longitudinally provided on both side walls of the movable groove 31 , and both ends of the limiting rod 34 are slidably disposed in the limiting sliding grooves 42 .

[0056] The card-joint assembly 6 includes a limit frame 15 and a card joint 16. The limit frame 15 is fixedly arranged on the output end of the driving motor 7. An avoidance gap 17 is opened on the limit frame 15. A limit socket 18 is also arranged on the limit frame 15. The card joint 16 is arranged on the end of the rotating shaft 19 facing the driving motor 7. The card joint 16 is embedded in the limit frame 15 as the cabinet door 2 rotates.

[0057] In this embodiment, during the specific implementation, side openings are respectively provided on both side surfaces of the limit frame 15, and the side openings are specifically the avoidance gap 17. The two surfaces opened by the avoidance gap 17 are respectively a side of the limit frame 15 facing the main fan 5 and a side of the limit frame 15 facing the non-rotating hinged side of the cabinet door 2. These two surfaces are respectively used to accommodate the rotating shaft 19 of the main fan 5 and the card joint 16. When the cabinet door 2 rotates, the card joint 16 is embedded in the limit frame 15 from one side. At the same time, the limit pin 30 on the card joint 16 enters from the horizontal long hole of the special-shaped limit socket 39. When the cabinet door 2 is closed and the limit pin 30 falls into place, the limit pin 30 is located at the end position of the vertical short hole of the special-shaped limit socket 39. Then, the drawer handle 25 is pulled from the outside of the cabinet door 2 to move the card joint 16 toward the cabinet door 2, so that the limit pin 30 on the card joint 16 enters the vertical short hole of the special-shaped limit socket 39. At the same time, the elastic barrier 29 in the vertical short hole limits the limit pin 30.

[0058] Further, such as Figure 5As shown, movable grooves 31 are provided on the two side walls of the slide groove 3, and the movable grooves 31 have a certain width. A double-headed auxiliary rod 33 is provided in the movable groove 31. When the rotating shaft 19 moves axially along its own axis to drive the limiting plug 30 to enter the vertical short hole of the special-shaped limiting plug hole 39 and escape from the vertical short hole of the special-shaped limiting plug hole 39, the second magnetic suction pieces 40 at both ends of the double-headed auxiliary rod 33 are disconnected and connected with the first magnetic suction piece 27 in the movable groove 31, especially when the rotating shaft 19 moves axially toward the installation box 11, so that the limiting plug 30 escapes from the vertical short hole of the special-shaped limiting plug hole 39, at this time, the double-headed auxiliary rod 33 is driven by the upper limit annular groove 32 of the rotating shaft 19, and moves to one side of the movable groove 31 and sticks to it. Attached to the inner side of this movable groove 31, the second magnetic sheet 40 and the first magnetic sheet 27 are connected and adsorbed to each other, so that the main fan 5 is fixed in this position, and then the limiting plug 30 is disengaged from the horizontal long hole of the special-shaped limiting socket 39 as the cabinet door 2 rotates until the cabinet door 2 is opened. The main fan will maintain this position and will not fall, and the rotating shaft 19, the main fan 5 and other components are fixed at the end position of the movement, so that when the cabinet door 2 is closed again, the card connector 16 can be directly embedded in the limiting frame 15 again, so that the continuous use effect is better.

[0059] Furthermore, in order to prevent the rotation of the rotating shaft 19, the limiting annular groove 32 drives the double-headed auxiliary rod 33 to rotate synchronously due to the friction force, so that the position of the second magnetic attraction plate 40 is not in the movable groove 31, a limiting groove 42 and a limiting rod 34 are further provided. The limiting rod 34 can synchronously cooperate with the movement in the limiting groove 42 during the up and down movement of the rotating shaft 19, and can also limit the double-headed auxiliary rod 33 from making a circular rotation, thereby preventing the second magnetic attraction plate 40 from being misaligned with the first magnetic attraction plate 27.

[0060] Embodiment 2: This embodiment is an alternative to the clamping assembly 6 involved in the first embodiment. Figure 7 As shown, the card connection assembly 6 includes a limit frame 15 and a card joint 16. The limit frame 15 is fixedly arranged on the output end of the driving motor 7. An avoidance gap 17 is opened on the limit frame 15. A limit socket 18 is also arranged on the limit frame 15. The card joint 16 is arranged on the end of the rotating shaft 19 facing the driving motor 7. The card joint 16 is embedded in the limit frame 15 as the cabinet door 2 rotates.

[0061] The card joint 16 includes a matching frame 20 fixedly mounted on the rotating shaft 19, and a limiting column 21 is slidably arranged on the frame wall of the matching frame 20. One end of the limiting column 21 is located inside the matching frame 20 and connected to an arc block 22. The arc block 22 is connected to the inner wall of the limiting frame 15 through a reset spring 23. The other end of the limiting column 21 is arranged outside the limiting frame 15 and is aligned with the limiting socket 18. The arc block 22 drives the limiting column 21 to slide outward and be inserted into the limiting socket 18 through the pushing of the trigger member.

[0062] The trigger member includes a slide rod 24, which is coaxially slidably arranged inside the rotating shaft 19, one end of the slide rod 24 protrudes from the end of the rotating shaft 19, extends to the outside of the cabinet door 2 and is connected to a handle 25, the other end of the slide rod 24 is arranged inside the matching frame 20 and an extrusion head 26 is arranged at the end, the extrusion head 26 is arranged in a trapezoidal shape, the small head end of the extrusion head 26 is arranged toward the arc block 22, a magnetic attraction part 41 is arranged on the end surface of the small head end of the extrusion head 26, a metal sheet 28 is arranged on the frame wall opposite to the magnetic attraction part 41, and the mutual connection between the metal sheet 28 and the magnetic attraction part 41 is used to fix the extrusion head 26 at the position of the extrusion arc block 22.

[0063] In this embodiment, during the specific implementation, side openings are respectively provided on both side surfaces of the limit frame 15, specifically, avoidance gaps 17. The two surfaces opened by the avoidance gaps 17 are respectively a side of the limit frame 15 facing the main fan 5 and a side of the limit frame 15 facing the non-rotating hinged side of the cabinet door 2. These two surfaces are respectively used to accommodate the rotating shaft 19 of the main fan 5 and to accommodate the matching frame 20. When the cabinet door 2 rotates, the matching frame 20 can enter the interior of the limit frame 15 from the side of the limit frame 15 facing the non-rotating hinged side of the cabinet door 2. After the matching frame 20 enters the interior of the limit frame 15, the limit column 21 in the matching frame 20 is correspondingly arranged with the limit socket 18 opened on the limit frame 15. After that, by pressing the slide bar 24 from the outside, the slide bar 24 moves axially inside the rotating shaft 19, driving the extrusion head 26 at its head end to extend forward, squeezing the arc block 22 at the end of the limit column 21. As the trapezoidal extrusion head 26 gradually goes deeper, the limit column 21 gradually extends to both sides and is inserted into the limit socket 18 of the limit frame 15. The end of the extrusion head 26 is provided with a magnetic attraction member 41 connected to the matching frame 20 to keep the extrusion head 26 in the position of squeezing the limit column 21. In this way, the limit column 21 can always be in the limit socket 18, so that when the output end of the drive motor 7 rotates, the main fan 5 can be driven to rotate through the rotating shaft 19. In this embodiment, since the output end of the drive motor 7 rotates circumferentially, the limit socket 18 cannot be connected to the avoidance gap 17, otherwise when the limit frame 15 rotates clockwise or counterclockwise, only one of the two limit columns 21 is always stressed, which easily makes the operation of the environmental protection and energy-saving electrical equipment unstable or even unable to be synchronously linked.

[0064] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. An environmentally friendly and energy-saving electrical device, characterized in that: include: An electrical cabinet (1), wherein an opening is provided on the front of the electrical cabinet (1), a cabinet door (2) is rotatably mounted on the opening, a slide groove (3) is provided on the inner wall of the cabinet door (2) along the height direction of the cabinet door (2), a plurality of ventilation holes (4) are arranged on the cabinet door (2), a main fan (5) is slidably arranged in the slide groove (3), one end of a rotating shaft (19) of the main fan (5) passes through the cabinet door (2) and extends toward the outside of the electrical cabinet (1), and the other end is movably connected to the output end of a drive motor (7) through a clamping assembly (6), and the drive motor (7) is mounted on the top of the electrical cabinet (1) through a telescopic assembly (8); A double-stage sleeve (9), the double-stage sleeve (9) being composed of two sleeves (10) which are sleeved in sequence, the adjacent sleeves (10) being spirally connected via a thread, the top of the double-stage sleeve (9) being mounted on the top of the electrical cabinet (1), the bottom of the double-stage sleeve (9) being rotatably connected to a mounting box (11), a plurality of auxiliary fans (12) being arranged in the mounting box (11), and the auxiliary fans (12) being connected to a driving source; The output end of the driving motor (7) is connected to the end sleeve (10) below the double-stage sleeve (9) through a linkage structure to synchronously drive the main fan (5) to rotate and the double-stage sleeve (9) to telescope.

2. The environmentally friendly and energy-saving electrical equipment according to claim 1, characterized in that: The drive motor (7) is a coaxial double-shaft motor, the output end on one side of the drive motor (7) is connected to the rotating shaft (19) of the main fan (5) via the clamping assembly (6), and the output end on the other side is arranged toward the double-stage sleeve (9); The linkage structure comprises a first bevel gear (13) and a second bevel gear (14); the first bevel gear (13) is fixedly mounted on the sleeve (10) at the end below the two-stage sleeve (9); the second bevel gear (14) is fixedly mounted on the output end of the drive motor (7) facing the two-stage sleeve (9); the first bevel gear (13) is meshingly connected with the second bevel gear (14).

3. The environmentally friendly and energy-saving electrical equipment according to claim 2, characterized in that: The rotating shaft (19) is axially slidably arranged on the cabinet door (2); one end of the rotating shaft (19) passes through the middle of the main fan (5), extends to the outside of the cabinet door (2), and is connected to a handle (25); The clamping assembly (6) comprises a limit frame (15) and a clamping joint (16); the limit frame (15) is fixedly arranged on the output end of the drive motor (7); the limit frame (15) is provided with an avoidance notch (17); the limit frame (15) is also provided with a special-shaped limit plug hole (39); the special-shaped limit plug hole (39) comprises a horizontal long hole and a vertical short hole; the horizontal long hole of the special-shaped limit plug hole (39) is arc-shaped and is connected to the avoidance notch (17); the vertical short hole of the special-shaped limit plug hole (39) is connected to the horizontal long hole of the special-shaped limit plug hole (39); and an elastic blocking sheet (29) is provided in the vertical short hole of the special-shaped limit plug hole (39); The clamping joint (16) is arranged on the end of the rotating shaft (19) facing the driving motor (7), and a limiting plug column (30) is arranged on the clamping joint (16) to be aligned with the special-shaped limiting socket (39). The limiting plug column (30) is embedded in the horizontal long hole of the special-shaped limiting socket (39) in an arc-shaped motion trajectory as the cabinet door (2) rotates, and enters the short vertical hole of the special-shaped limiting socket (39) by moving axially along the rotating shaft (19).

4. The environmentally friendly and energy-saving electrical equipment according to claim 3, characterized in that: Active grooves (31) are provided on both side walls of the slide groove (3), and a first magnetic attraction sheet (27) is provided on the side of the active groove (31) close to the drive motor (7); The rotating shaft (19) is provided with a limiting annular groove (32), a double-headed auxiliary rod (33) is sleeved in the limiting annular groove (32), two ends of the double-headed auxiliary rod (33) respectively extend toward the movable groove (31), two ends of the double-headed auxiliary rod (33) are respectively provided with a second magnetic attraction sheet (40), the second magnetic attraction sheet (40) is located in the movable groove (31), and the second magnetic attraction sheet (40) is connected to and disconnected from the first magnetic attraction sheet (27) as the rotating shaft (19) moves axially.

5. The environmentally friendly and energy-saving electrical equipment according to claim 4, characterized in that: The double-headed auxiliary rod (33) is rotatably mounted in the limiting annular groove (32); The second magnetic attraction sheet (40) is provided with a through hole, and a limit rod (34) is slidably arranged in the through hole; Limiting sliding grooves (42) are longitudinally provided on both side walls of the movable groove (31), and both ends of the limiting rod (34) are slidably disposed in the limiting sliding grooves (42).

6. The environmentally friendly and energy-saving electrical equipment according to claim 2, characterized in that: The clamping assembly (6) comprises a limit frame (15) and a clamping joint (16); the limit frame (15) is fixedly arranged on the output end of the drive motor (7); an avoidance notch (17) is provided on the limit frame (15); a limit insertion hole (18) is also provided on the limit frame (15); the clamping joint (16) is arranged on the end of the rotating shaft (19) facing the drive motor (7); the clamping joint (16) is movably embedded in the limit frame (15) as the cabinet door (2) rotates; The clamping joint (16) comprises a matching frame (20) fixedly mounted on the rotating shaft (19); a limiting column (21) is slidably arranged on the frame wall of the matching frame (20); one end of the limiting column (21) is located inside the matching frame (20) and connected to an arc block (22); the arc block (22) is connected to the inner wall of the limiting frame (15) via a return spring (23); the other end of the limiting column (21) is arranged outside the limiting frame (15) and is aligned with the limiting insertion hole (18); the arc block (22) drives the limiting column (21) to slide outward and be inserted into the limiting insertion hole (18) through the pushing of a trigger member.

7. The environmentally friendly and energy-saving electrical equipment according to claim 6, characterized in that: The trigger member comprises a slide bar (24), the slide bar (24) being coaxially slidably arranged inside the rotating shaft (19), one end of the slide bar (24) protruding from the end of the rotating shaft (19) and extending to the outside of the cabinet door (2) and being connected to a drawer handle (25), the other end of the slide bar (24) being arranged inside the matching frame (20) and being provided with an extrusion head (26) at the end thereof, the extrusion head (26) being arranged in a trapezoidal shape, the small end of the extrusion head (26) being arranged toward the arc block (22), the end surface of the small end of the extrusion head (26) being provided with a magnetic attraction member (41), a metal sheet (28) being provided on a frame wall of the matching frame (20) opposite to the magnetic attraction member (41), the mutual connection between the metal sheet (28) and the magnetic attraction member (41) being used to fix the extrusion head (26) at a position for extruding the arc block (22).

8. An environmentally friendly and energy-saving electrical device according to claim 3 or 6, characterized in that: The driving source comprises a plurality of rotating gears (35) arranged side by side in the installation box (11); one side of the rotating gears (35) is rotatably mounted on the inner wall of the installation box (11) via an optical axis, and the other end is fixedly mounted with an auxiliary fan (12) via the optical axis; the outer portions of the plurality of rotating gears (35) are meshedly connected to an annular chain belt (36); the middle portion of the annular chain belt (36) is meshedly connected to a driving gear (37); the driving gear (37) is coaxially fixedly connected to the output end of the driving motor (7); and an overcurrent gap (38) is provided on the wall of the installation box (11) close to the driving motor (7).

9. The environmentally friendly and energy-saving electrical equipment according to claim 8, characterized in that: The cross-sections of the blades of the main fan (5) and the auxiliary fan (12) are both S-shaped, and the width of the S-shaped blades gradually increases from the root position to the outer end position.

Images