Capacitor fixing device

Abstract

The invention relates to the technical field of capacitors, in particular to a capacitor fixing device, which comprises a mounting seat, a clamping unit and a driving unit, and is characterized in that the mounting seat comprises a top plate and a bracket, four sliding chutes are formed in the top plate, and the four sliding chutes are distributed on the top plate in a cross shape; the clamping unit comprises a rotating disc and four clamping assemblies, the rotating disc is rotationally connected to the bottom face of the top plate, and the four clamping assemblies are arranged at the four sliding grooves correspondingly; each clamping assembly comprises an arc-shaped clamping plate, a V-shaped connecting rod and a sliding block, and the arc-shaped clamping plates and the V-shaped connecting rods are arranged above and below the top plate correspondingly. The top of each sliding block is fixedly connected with the corresponding arc-shaped clamping plate, the bottom of each sliding block is hinged to one end of the corresponding V-shaped connecting rod, and the other end of each V-shaped connecting rod is hinged to one end of the rotating disc; and the driving unit is arranged below the clamping unit. The problems that in the prior art, an installation piece of a capacitor is poor in installation stability, poor in positioning effect, poor in universality and capable of being only matched with a large capacitor of a specific size are solved.

Description

Technical Field

[0001] The invention relates to the technical field of capacitors, and in particular provides a capacitor fixing device. Background Art

[0002] At present, a large number of large capacitors are often needed in the power transmission process. Large capacitors are mainly composed of outlet porcelain bushings, capacitor element groups and shells. The shell is made of thin steel plates sealed and welded, the outlet porcelain bushings are welded on the shell, and the wiring terminals are led out from the outlet porcelain bushings; the capacitor element group in the shell is connected by several capacitor elements, and the capacitor element is made of capacitor paper, film paper composite or pure film as the working medium, and aluminum platinum as the plate.

[0003] When installing and using existing large capacitors, some large capacitors are installed using capacitor fixings, that is, the large capacitors are fixed by capacitor clips and then tightened by fastening screws, but the degrees of freedom of these fixings are large, making it difficult to achieve stable installation and positioning of the large capacitors, and the disassembly and assembly are complicated, which in turn affects the use effect and installation efficiency of the capacitors; another part of the large capacitors are installed using customized mounting brackets, but such mounting brackets generally need to be customized to achieve stable installation of the capacitors, have poor versatility, and can only be adapted to large capacitors of specific sizes.

[0004] In addition, large capacitors will generate heat when working. If it is not dissipated in time, the aging speed of the large capacitor will accelerate, especially when the large capacitor is in a high-temperature working environment, the heat in the air will be transferred to the large capacitor, thereby affecting the service life of the large capacitor. However, the existing customized mounting bracket has a single function and it is difficult to discharge the heat of the large capacitor in time to solve the problem of rapid heat dissipation of the large capacitor. Summary of the invention

[0005] The present invention provides a capacitor fixing device, which is used to solve the problems that the capacitor mounting parts in the prior art have poor installation stability, poor positioning effect, poor versatility, and can only be adapted to large capacitors of specific sizes.

[0006] The present invention provides a capacitor fixing device, comprising: The mounting seat comprises a top plate and a bracket mounted on the side wall of the top plate, the top plate is provided with four slide grooves, and the four slide grooves are arranged in a cross shape on the top plate; A clamping unit, comprising a turntable and four groups of clamping assemblies arranged in the circumference of the turntable, wherein the turntable is rotatably connected to the bottom surface of the top plate, and the four groups of clamping assemblies are respectively arranged at the four slide grooves; Each group of the clamping components comprises an arc-shaped clamping plate, a V-shaped connecting rod and a sliding block, wherein the arc-shaped clamping plate and the V-shaped connecting rod are respectively arranged above and below the top plate; each sliding block is inserted into the corresponding sliding groove, the top of the sliding block is fixedly connected to the arc-shaped clamping plate, the bottom of the sliding block is hinged to one end of the V-shaped connecting rod, and the other end of the V-shaped connecting rod is hinged to one end of the rotating disk; A driving unit is disposed below the clamping unit, and is used to control the sliding block to slide in the corresponding sliding groove, so that the four arc-shaped clamping plates form a clamping space for fixing the capacitor.

[0007] Furthermore, the driving unit includes an electric telescopic rod and a locking mechanism, the two electric telescopic rods are respectively arranged in parallel on both sides of one of the sliders, the outer shells of the two electric telescopic rods are fixed to the mounting seat, and the telescopic rod ends of the two electric telescopic rods are fixedly connected to the slider; the locking mechanism is used to lock and limit the telescopic position of the telescopic rod.

[0008] Furthermore, one of the electric telescopic rods is provided with the locking mechanism, and the locking mechanism includes a first fixing frame, a second fixing frame, a telescopic box and a top screw, the first fixing frame is fixedly connected to the shell of the electric telescopic rod, the second fixing frame is fixedly connected to the telescopic rod of the electric telescopic rod, one end of the telescopic box is fixedly connected to the first fixing frame, and the other end is fixedly connected to the second fixing frame, and one end of the top screw passes through the telescopic box and is threadedly connected to the top plate, so as to limit the telescopic length of the telescopic box.

[0009] Furthermore, a heat dissipation unit is also provided on the mounting seat, and the heat dissipation unit includes a heat dissipation shell, an insulation inner plate, a lifting mechanism, a blowing fan and an exhaust fan. The heat dissipation shell is installed on the mounting seat, and N first heat dissipation slots are provided on both side walls of the heat dissipation shell, and the N first heat dissipation slots are evenly distributed on the heat dissipation shell in the vertical direction, where N≥2; the two insulation inner plates are respectively arranged on the inner walls on both sides of the heat dissipation shell, and the two insulation inner plates are respectively provided with N second heat dissipation slots, and the hole spacing between two adjacent second heat dissipation slots is the same as the hole spacing between two adjacent first heat dissipation slots, and a telescopic plug is provided on the heat dissipation shell at the lower side of each first heat dissipation slot, and the lifting mechanism is installed on the heat dissipation shell, and is used to drive the insulation inner plate to move up and down, so that the first heat dissipation slot and the second heat dissipation slot are connected, or the telescopic plug blocks the second heat dissipation slot; the blowing fan and the exhaust fan are respectively located on the inner sides of the two insulation inner plates, and are installed on the top plate.

[0010] Furthermore, the lifting mechanism includes a screw, a nut and an adjusting wheel, the screw is inserted into a limiting groove provided on the upper inner wall of the heat dissipation shell, the bottom of the screw is rotatably connected to the bottom of the limiting groove, the top of the screw extends out of the top surface of the heat dissipation shell, the nut is threadedly connected to the screw, and the nut is circumferentially limited to the limiting groove, the side wall of the nut is fixedly connected to the top of the heat insulation inner plate, and the adjusting wheel is installed on the top of the screw.

[0011] Furthermore, a transverse slide groove is provided on the heat dissipation shell at the lower side of each of the first heat dissipation grooves, and the telescopic plug includes an elastic slide bar and at least one telescopic rod. The rear portion of the elastic slide bar is slidably connected to the transverse slide groove, and the end cross-section of the front portion of the elastic slide bar is set to be trapezoidal. One end of the telescopic rod is fixedly connected to the rear wall of the transverse slide groove, and the other side is fixedly connected to the rear end face of the elastic slide bar. A compression spring is also provided on the telescopic rod.

[0012] Furthermore, the end cross-section of the second heat dissipation slot is trapezoidal, which is matched with the front portion of the elastic sliding strip.

[0013] Furthermore, a first heat insulation layer is provided on the outer wall of each of the heat insulation inner plates close to the heat dissipation outer shell, and a second heat insulation layer is provided on the outer wall of the heat dissipation outer shell.

[0014] Furthermore, it also includes a refrigeration system, which includes a heat exchange pipeline and a refrigeration mechanism. The heat exchange pipeline is arranged in the insulation inner plate, and the heat exchange pipeline reduces the temperature around the capacitor through heat exchange. The refrigerant inlet of the heat exchange pipeline is arranged at the lower end of the insulation inner plate, and the refrigerant outlet of the heat exchange pipeline is arranged at the upper end of the insulation inner plate. The refrigeration mechanism is arranged below the mounting seat, and the refrigeration mechanism is used to cool the heat exchange pipeline.

[0015] Furthermore, the heat exchange pipeline is distributed in an S shape in the heat insulation inner plate.

[0016] The capacitor fixing device provided by the present invention has a simple structure and is easy to operate. By controlling the two electric telescopic rods in the driving unit to extend or retract, one of the driving sliders drives the V-shaped connecting rod to rotate. The V-shaped connecting rod rotates and drives the rotating disk to rotate. After the rotating disk rotates, the four arc-shaped clamping plates can move back and forth on the top plate at the same time. The clamping assembly can be loosened or clamped. Through the coordinated cooperation of the mounting seat, the clamping unit and the driving unit, the capacitor to be installed can be clamped and fixed, and the horizontal degree of freedom of the capacitor can be completely limited, so as to achieve stable installation and positioning of large capacitors and ensure the normal operation of the capacitor. At the same time, the clamping unit is automatically clamped and loosened by the electric telescopic rod, so that the capacitor is easy to disassemble and replace, and the installation efficiency of the capacitor is improved; the electric telescopic rod drives the clamping unit to move back and forth on the top plate, and can also meet the clamping and fixing of capacitors of different diameters. It has strong universal performance and improves the performance of the fixing device.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional structural diagram of a capacitor fixing device provided by the present invention; Figure 2 It is a structural schematic diagram of a refrigeration mechanism in a capacitor fixing device provided by the present invention; Figure 3 It is a structural schematic diagram of a clamping unit in a capacitor fixing device provided by the present invention; Figure 4 is a top view of a clamping unit in a capacitor fixing device provided by the present invention; Figure 5 It is a bottom view of a clamping unit in a capacitor fixing device provided by the present invention; Figure 6 It is a structural schematic diagram of the locking mechanism in the capacitor fixing device provided by the present invention.

[0020] Figure 7 It is a front view of the locking mechanism in the capacitor fixing device provided by the present invention.

[0021] Figure 8is a schematic structural diagram of a heat dissipation unit in a capacitor fixing device provided by the present invention (the top and one side wall of the heat dissipation housing are not shown in the figure); Fig. 9 yes Figure 8 The main view; Fig.10 It is a structural schematic diagram of a heat-insulating inner plate in a capacitor fixing device provided by the present invention; Fig.11 It is a structural schematic diagram of a heat dissipation housing in a capacitor fixing device provided by the present invention; Fig.12 The present invention provides a center dislocation distribution state diagram of the first heat dissipation slot and the second heat dissipation slot in the capacitor fixing device; Fig.13 A diagram showing a distribution state in which the centers of the first heat dissipation slot and the second heat dissipation slot in the capacitor fixing device provided by the present invention are flush with each other; Fig.14 The invention provides a schematic diagram of the installation of a telescopic plug in a capacitor fixing device.

[0022] Reference numerals: 1. Mounting seat; 11. Top plate; 12. Bracket; 13. Slide; 21. Turntable; 22. Clamping assembly; 221. Arc clamp; 222. V-shaped connecting rod; 223. Slider; 3. Drive unit; 31. Electric telescopic rod; 32. Locking mechanism; 321. First fixed frame; 322. Second fixed frame; 323. Telescopic box; 324. Top screw; 33. Round rod; 41. Heat dissipation shell; 42. Heat insulation inner plate; 43. Lifting mechanism; 431. Screw; 432. Nut; 433. Adjusting wheel; 434. Limiting groove; 45. First heat dissipation slot; 46. Second heat dissipation slot; 47. Telescopic plug; 471. Elastic slide bar; 472. Telescopic rod; 48. Horizontal slide; 442. Blowing fan; 443. Exhaust fan; 444. Refrigerant inlet; 445. Refrigerant outlet; 446. Refrigeration mechanism. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", etc., are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms are not directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0028] Combine the following Figures 1 to 14 The embodiments shown describe the technical solution of the present invention: An embodiment of the present invention provides a capacitor fixing device, such as Figures 1 to 5As shown, it includes a mounting base 1, a clamping unit and a driving unit 3; The mounting base 1 includes a top plate 11 and a bracket 12 mounted on the side wall of the top plate 11, wherein the top plate 11 is in the shape of a square plate, the bracket 12 adopts a rectangular frame structure, and four slide grooves 13 are opened on the top plate 11, and the four slide grooves 13 are arranged in a cross shape on the top plate 11; The clamping unit includes a turntable 21 and four groups of clamping assemblies 22 arranged in the circumference of the turntable 21. The turntable 21 is rotatably arranged in a square plate shape. The turntable 21 is rotatably connected to the bottom surface of the top plate 11. The four groups of clamping assemblies 22 are respectively arranged at four slide grooves 13. Each set of clamping components 22 includes an arc-shaped clamping plate 221, a V-shaped connecting rod 222 and a slider 223. The arc-shaped clamping plate 221 and the V-shaped connecting rod 222 are respectively arranged above and below the top plate 11; each slider 223 is inserted into the corresponding slide groove 13, the top of the slider 223 is fixedly connected to the arc-shaped clamping plate 221, the bottom of the slider 223 is hinged to one end of the V-shaped connecting rod 222, and the other end of the V-shaped connecting rod 222 is hinged to the top of the rotating disk 21; The driving unit 3 is disposed below the clamping unit. The driving unit 3 is used to control the sliding block 223 to slide in the corresponding sliding groove 13 so that the four arc-shaped clamping plates 221 form a clamping space for fixing the capacitor.

[0029] In this embodiment, in order to more stably and reliably drive the slider 223 to slide in the corresponding slide groove 13, and synchronously drive the four arc-shaped clamping plates 221 to move toward the center of the top plate 11, the driving unit 3 includes two electric telescopic rods 31 and two locking mechanisms 32 respectively installed on the two electric telescopic rods 31, the shells of the two electric telescopic rods 31 are fixed on the mounting seat 1, and the two electric telescopic rods 31 are respectively arranged in parallel on both sides of one of the sliders 223, and two ear plates are symmetrically installed at the bottom of the slider 223, and round rods 33 are fixed on the two ear plates. The telescopic rod ends of the two electric telescopic rods 31 are respectively fixedly connected to the two ends of the round rod 33, so that the two electric telescopic rods 31 can be extended and retracted to drive the slider 223 to move, and then the four arc-shaped clamping plates 221 can be driven to clamp toward the center of the top plate 11 at the same time through the transmission of the V-shaped connecting rod 222 and the slider 223.

[0030] like Figure 6 and Figure 7As shown, the two locking mechanisms 32 each include a first fixing frame 321, a second fixing frame 322, a telescopic box 323 and a top screw 324. The first fixing frame 321 is fixedly connected to the housing of the electric telescopic rod 31, and the top of the first fixing frame 321 is fixed to the top plate 11. The second fixing frame 322 is fixedly connected to the telescopic rod of the electric telescopic rod 31. The telescopic box 323 includes a fixed box and a movable box that can be telescopically moved on the fixed box. The fixed box end of the telescopic box 323 is fixedly connected to the first fixing frame 321. The telescopic box The movable box end of 323 is fixedly connected to the second fixed frame 322. When the electric telescopic rod 31 is extended or retracted, the telescopic box 323 can be extended or retracted synchronously. Then, when the two electric telescopic rods 31 drive the clamping unit to clamp the capacitor in place, the electric telescopic rod 31 can be powered off to avoid wasting electric energy. One end of the top screw 324 passes through the fixed box and the movable box of the telescopic box 323 and is threadedly connected to the top plate 11 to limit the telescopic length of the telescopic box, so as to lock and limit the telescopic position of the electric telescopic rod 31.

[0031] like Figures 8 to 11 As shown, in this embodiment, in order to achieve stable fixing of the capacitor while cooling the area around the capacitor, on the one hand, the high-temperature gas around the capacitor can be discharged to the external environment to dissipate heat and cool the capacitor, and on the other hand, the capacitor can be cooled by heat exchange to improve the cooling efficiency of the capacitor. The capacitor fixing device also includes a heat dissipation unit and a refrigeration system. The heat dissipation unit is arranged on the mounting seat 1; the heat dissipation unit includes a heat dissipation shell 41, an insulating inner plate 42, a lifting mechanism 43, a blowing fan 442 and an exhaust fan 443. The heat dissipation shell 41 is installed on the mounting seat 1. Six first heat dissipation grooves 45 are provided on both side walls of the heat dissipation shell 41, and the six first heat dissipation grooves 45 are evenly distributed on the heat dissipation shell 41 along the vertical direction; two insulating inner plates 42 are respectively arranged on the inner walls on both sides of the heat dissipation shell 41, and rectangular sliders are fixedly arranged on both sides of the insulating inner plates 42. The two rectangular sliders are slidably connected to the vertical slide grooves opened on the heat dissipation shell 41 to limit the insulating inner plates 42. At the same time, limiting grooves are provided under the two insulating inner plates 42, and the two limiting grooves are fixed on the top plate 11. The two limiting grooves are used to limit and support the insulating inner plates 42.

[0032] Six second heat dissipation slots 46 are provided on the two heat-insulating inner plates 42, and the hole spacing between two adjacent second heat-dissipating slots 46 is the same as the hole spacing between two adjacent first heat-dissipating slots 45. A telescopic plug 47 is provided on the heat dissipation shell 41 at the lower side of each first heat-dissipating slot 45. The lifting mechanism 43 is installed on the heat-dissipating shell 41, and is used to drive the heat-insulating inner plate 42 to move up and down on the inner side of the heat-dissipating shell 41, so that the first heat-dissipating slots 45 and the second heat-dissipating slots 46 are connected, or the telescopic plug 47 blocks the second heat-dissipating slots 46; the blowing fan 442 and the exhaust fan 443 are respectively located on the inner sides of the two heat-insulating inner plates 42, and are installed on the top plate 11.

[0033] In this embodiment, in order to prevent the heat from the external environment from being transmitted to the capacitor, a first insulation layer is provided on the outer wall of each insulation inner plate 42 close to the heat dissipation outer shell 41, and a second insulation layer is provided on the outer wall of the heat dissipation outer shell 41. The first insulation layer and the second insulation layer are both made of insulating materials, such as glass fiber, asbestos or aluminum foil.

[0034] In this embodiment, the lifting mechanism 43 includes a screw 431, a nut 432 and an adjusting wheel 433. The screw 431 is inserted into a limiting groove 434 provided on the upper inner wall of the heat dissipation shell 41. The bottom of the screw 431 is rotatably connected to the bottom of the limiting groove 434. The top of the screw 431 extends out of the top surface of the heat dissipation shell 41. The nut 432 is threadedly connected to the screw 431, and the nut 432 is circumferentially limited to the limiting groove 434. The side wall of the nut 432 is fixedly connected to the top of the heat insulation inner plate 42. The adjusting wheel 433 is installed on the top of the screw 431. The screw 431 can be rotated by rotating the adjusting wheel 433, so that the nut 432 drives the heat insulation inner plate 42 to move up and down relative to the heat dissipation shell 41. Fig.12 As shown, the six first heat dissipation slots 45 and the six second heat dissipation slots 46 can be centrally staggered so that the telescopic plug 47 is extended and the second heat dissipation slots 46 are blocked; Fig.13 As shown, the six first heat dissipation grooves 45 and the six second heat dissipation grooves 46 can also be centrally arranged to be connected with each other. At this time, the telescopic plug 47 is squeezed and contracted into the heat dissipation shell 41 due to the plate surface of the heat insulation inner plate 42.

[0035] like Fig.14 As shown, in this embodiment, a transverse slot 48 is provided on the heat dissipation housing 41 at the lower side of each first heat dissipation slot 45, and the telescopic plug 47 includes an elastic slide bar 471 and three telescopic rods 472. The elastic slide bar 471 is made of rubber; the rear of the elastic slide bar 471 is slidably connected to the transverse slot 48, and the end section of the front of the elastic slide bar 471 is set to be trapezoidal, one end of the telescopic rod 472 is fixedly connected to the rear wall of the transverse slot 48, and the other side is fixedly connected to the rear end face of the elastic slide bar 471, and the three telescopic rods 472 are evenly distributed on the elastic slide bar 471, and each telescopic rod 472 is also provided with a compression spring, which is used to give the telescopic rod 472 an outward thrust. The end section of the second heat dissipation slot 46 is trapezoidal, which is adapted to the front of the elastic slide bar 471, so that the elastic slide bar 471 can block the second heat dissipation slot 46.

[0036] In this embodiment, the refrigeration system includes a heat exchange pipeline and a refrigeration mechanism 446. The heat exchange pipeline is arranged in the heat insulation inner plate 42. The heat exchange pipeline is distributed in an S shape in the heat insulation inner plate 42. The heat exchange pipeline reduces the temperature around the capacitor through heat exchange. Figure 3As shown, the refrigerant inlet 444 of the heat exchange pipeline is arranged at the lower end of the heat insulation inner plate 42. Figure 8 As shown, the refrigerant outlet 445 of the heat exchange pipeline is arranged at the upper end of the heat insulation inner plate 42; wherein the refrigeration mechanism 446 is arranged below the mounting seat 1, and the refrigeration mechanism 446 is used to refrigerate the heat exchange pipeline. The refrigeration mechanism 446 adopts a compression refrigeration method. The shell of the refrigeration mechanism 446 adopts a rectangular shell, and the top of the rectangular shell can be set as a convex structure, which is compatible with the bottom groove of the bracket 12. The mounting seat 1 can be placed on the shell of the refrigeration mechanism 446. The refrigeration mechanism 446 can firmly support the capacitor to be installed; the refrigeration mechanism 446 includes a compressor, a condenser and a throttling device. First, the compressor compresses the refrigerant to a high-pressure state through an electric motor. During the compression process, the refrigerant becomes hot and increases the temperature and pressure. Then, the high-temperature and high-pressure refrigerant enters the condenser, and releases heat to the external environment through heat exchange with the external environment. In this process, the refrigerant gradually cools and turns into a high-pressure liquid. After that, the high-pressure liquid enters the throttle valve, and the liquid pressure drops sharply due to the sudden reduction of the valve. During this process, the refrigerant changes from liquid to mist, and expands and evaporates at the same time, absorbing heat and reducing pressure, causing the refrigerant temperature to drop significantly. Finally, the low-temperature and low-pressure refrigerant enters the refrigerant inlet 444, exchanges heat with the capacitor, and absorbs the heat of the capacitor, thereby achieving a cooling effect.

[0037] When the capacitor fixing device used in this embodiment is used, the two electric telescopic rods 31 in the driving unit 3 can be controlled to extend first, and the driving rod 33 can be driven to move in a direction away from the middle of the top plate 11, so that the slider 223 above the driving rod 33 drives the V-shaped connecting rod 222 there to rotate, and the rotation of the V-shaped connecting rod 222 drives the rotating disk 21 to rotate at the same time, and then the rotating disk 21 drives the other three V-shaped connecting rods 222 to rotate at the same time, so that the arc clamping plate 221 moves away from the middle of the top plate 11, and the clamping assembly 22 is opened; then, the capacitor to be installed is placed Place it on the top plate 11, and similarly control the two electric telescopic rods 31 to retract, so that the four arc-shaped clamps 221 can centrally position and clamp the capacitor to be installed; afterwards, because the two locking mechanisms 32 and the two electric telescopic rods 31 perform synchronous telescopic movements, the telescopic box 323 is limited on the top plate 11 by the top screw 324, and the two electric telescopic rods 31 are locked and limited, so that the two electric telescopic rods 31 can be powered off, reducing the power waste of the electric telescopic rods 31, and thus the capacitors to be installed with different diameters can be positioned and installed. Finally, the heat dissipation unit is adjusted according to the external ambient temperature.

[0038] When the season is spring, autumn or winter, and the external environment temperature is lower than the temperature around the capacitor, the adjusting wheel 433 is turned to move the heat-insulating inner plate 42 upward, and the centers of the six first heat-dissipating grooves 45 and the six second heat-dissipating grooves 46 correspond one to one. At this time, the telescopic plug 47 is squeezed in the horizontal slide groove 48 due to the extrusion of the heat-insulating inner plate 42. Then, the blowing fan 442 and the exhaust fan 443 are turned on to quickly discharge the heat inside the heat dissipating housing 41 to the external environment, and heat is exchanged with the external environment, thereby improving the heat exchange efficiency of the capacitor. When the external season is summer, and the external environment temperature is higher than the temperature around the capacitor, the external heat will gather around the capacitor, and it is difficult for the capacitor to exchange heat with the external environment. Heat exchange is performed. At this time, the adjusting wheel 433 can be rotated to move the heat-insulating inner plate 42 downward. The elastic slide bar 471 under the six first heat-dissipating grooves 45 automatically pops out to block the six second heat-dissipating grooves 46. The heat-dissipating outer shell 41 and the heat-insulating inner plate 42 block the external high-temperature gas outside the capacitor fixing device. The blowing fan 442 and the exhaust fan 443 are turned on. At the same time, the heat exchange pipeline is controlled to exchange and cool the heat inside the heat-dissipating outer shell 41, and then the capacitor is cooled and regulated, thereby extending the service life of the capacitor. In addition, the first heat-insulating layer and the second heat-insulating layer in this embodiment can also block the heat from the external environment, reducing the transfer of heat from the external environment to the capacitor.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A capacitor fixing device, characterized in that: include: The mounting seat comprises a top plate and a bracket mounted on the side wall of the top plate, the top plate is provided with four slide grooves, and the four slide grooves are arranged in a cross shape on the top plate; A clamping unit, comprising a turntable and four groups of clamping assemblies arranged in the circumference of the turntable, wherein the turntable is rotatably connected to the bottom surface of the top plate, and the four groups of clamping assemblies are respectively arranged at the four slide grooves; Each group of the clamping components comprises an arc-shaped clamping plate, a V-shaped connecting rod and a sliding block, wherein the arc-shaped clamping plate and the V-shaped connecting rod are respectively arranged above and below the top plate; each sliding block is inserted into the corresponding sliding groove, the top of the sliding block is fixedly connected to the arc-shaped clamping plate, the bottom of the sliding block is hinged to one end of the V-shaped connecting rod, and the other end of the V-shaped connecting rod is hinged to one end of the rotating disk; A driving unit is disposed below the clamping unit, and is used to control the sliding block to slide in the corresponding sliding groove, so that the four arc-shaped clamping plates form a clamping space for fixing the capacitor.

2. The capacitor fixing device according to claim 1, characterized in that: The driving unit includes an electric telescopic rod and a locking mechanism. The two electric telescopic rods are respectively arranged in parallel on both sides of one of the sliders. The shells of the two electric telescopic rods are fixed to the mounting seat. The telescopic rod ends of the two electric telescopic rods are fixedly connected to the slider. The locking mechanism is used to lock and limit the telescopic position of the telescopic rod.

3. The capacitor fixing device according to claim 2, characterized in that: The locking mechanism is provided on one of the electric telescopic rods, and the locking mechanism includes a first fixing frame, a second fixing frame, a telescopic box and a top screw. The first fixing frame is fixedly connected to the shell of the electric telescopic rod, the second fixing frame is fixedly connected to the telescopic rod of the electric telescopic rod, one end of the telescopic box is fixedly connected to the first fixing frame, and the other end is fixedly connected to the second fixing frame. One end of the top screw passes through the telescopic box and is threadedly connected to the top plate, so as to limit the telescopic length of the telescopic box.

4. The capacitor fixing device according to any one of claims 1 to 3, characterized in that: A heat dissipation unit is also provided on the mounting seat, and the heat dissipation unit includes a heat dissipation shell, an insulation inner plate, a lifting mechanism, a blowing fan and an exhaust fan. The heat dissipation shell is installed on the mounting seat, and N first heat dissipation slots are provided on both side walls of the heat dissipation shell, and the N first heat dissipation slots are evenly distributed on the heat dissipation shell in the vertical direction, where N≥2; the two insulation inner plates are respectively arranged on the inner walls on both sides of the heat dissipation shell, and the two insulation inner plates are respectively provided with N second heat dissipation slots, and the hole spacing between two adjacent second heat dissipation slots is the same as the hole spacing between two adjacent first heat dissipation slots, and a telescopic plug is provided on the heat dissipation shell at the lower side of each first heat dissipation slot, and the lifting mechanism is installed on the heat dissipation shell, and is used to drive the insulation inner plate to move up and down, so that the first heat dissipation slot and the second heat dissipation slot are connected, or the telescopic plug blocks the second heat dissipation slot; the blowing fan and the exhaust fan are respectively located on the inner sides of the two insulation inner plates, and are installed on the top plate.

5. The capacitor fixing device according to claim 4, characterized in that: The lifting mechanism includes a screw, a nut and an adjusting wheel. The screw is inserted into a limiting groove provided on the upper inner wall of the heat dissipation shell. The bottom of the screw is rotatably connected to the bottom of the limiting groove. The top of the screw extends out of the top surface of the heat dissipation shell. The nut is threadedly connected to the screw, and the nut is circumferentially limited to the limiting groove. The side wall of the nut is fixedly connected to the top of the heat insulation inner plate, and the adjusting wheel is installed on the top of the screw.

6. The capacitor fixing device according to claim 5, characterized in that: A transverse slide groove is provided on the heat dissipation shell at the lower side of each of the first heat dissipation grooves, and the telescopic plug includes an elastic slide bar and at least one telescopic rod. The rear portion of the elastic slide bar is slidably connected to the transverse slide groove, and the end cross-section of the front portion of the elastic slide bar is set to be trapezoidal. One end of the telescopic rod is fixedly connected to the rear wall of the transverse slide groove, and the other side is fixedly connected to the rear end face of the elastic slide bar. A compression spring is also provided on the telescopic rod.

7. The capacitor fixing device according to claim 6, characterized in that: The end section of the second heat dissipation slot is trapezoidal and matched with the front part of the elastic sliding strip.

8. The capacitor fixing device according to claim 7, characterized in that: A first heat insulation layer is arranged on the outer wall of each heat insulation inner plate close to the heat dissipation outer shell, and a second heat insulation layer is arranged on the outer wall of the heat dissipation outer shell.

9. The capacitor fixing device according to claim 8, characterized in that: It also includes a refrigeration system, which includes a heat exchange pipeline and a refrigeration mechanism. The heat exchange pipeline is arranged in the insulation inner plate, and the heat exchange pipeline reduces the temperature around the capacitor through heat exchange. The refrigerant inlet of the heat exchange pipeline is arranged at the lower end of the insulation inner plate, and the refrigerant outlet of the heat exchange pipeline is arranged at the upper end of the insulation inner plate. The refrigeration mechanism is arranged below the mounting seat, and the refrigeration mechanism is used to cool the heat exchange pipeline.

10. The capacitor fixing device according to claim 9, characterized in that: The heat exchange pipeline is distributed in an S shape in the heat insulation inner plate.

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