A vehicle-mounted transformer for a mobile substation

Abstract

The present invention belongs to the technical field of vehicle-mounted transformers, and discloses a vehicle-mounted transformer for a mobile substation, including a transformer body, a square oil storage cabinet is installed on one side of the top of the transformer body, an insulating sleeve assembly is arranged on the other side of the transformer body, a heat dissipation mechanism is arranged on the side of the transformer body, a barrier assembly is arranged between the heat dissipation box and the second air guide module, a resistance wire heater is installed at the bottom of the second air duct, and a blower pump is installed at the bottom of the heat dissipation box. The vehicle-mounted transformer for the mobile substation can achieve uniform heat dissipation of the outer wall of the transformer body through the heat dissipation mechanism. When the environment is low temperature and humid, the heat dissipation mechanism enters a drying state, which can not only achieve the effect of warming the transformer body, but also dry the humid air around the insulating sleeve assembly, thereby ensuring the insulation and use safety of the insulating sleeve assembly, and ensuring the safe and stable use of the transformer.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted transformers, and in particular to a vehicle-mounted transformer for a mobile substation. Background Art

[0002] A mobile substation is a mobile power facility with power supply capability. It is usually composed of one or more power supply devices (such as generators), transformers, and distribution equipment. Mobile substations are mainly used in emergency repairs, temporary power supply for construction sites or outdoor performances, power supply to areas without electricity such as mountainous areas and deserts, and equipment modification and maintenance. Mobile substations include transformers, disconnectors, lightning arresters, fuses, control equipment, and load switches.

[0003] The on-board transformer used in mobile substations will be affected by the outdoor environment when used in an emergency. When the ambient temperature is low, the viscosity of the oil in the transformer increases at low temperatures, and the oil flow effect is poor. In addition, in a low-temperature and humid environment, the insulation material of the transformer comes into contact with water, and the insulation material deteriorates, which will cause the insulation resistance to decrease and increase the risk of failure. Therefore, we have made improvements to this and proposed a on-board transformer for mobile substations. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present invention after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the present invention is to provide a vehicle-mounted transformer for a mobile substation to solve the technical problem that the performance and safety performance of the transformer will be affected when the vehicle-mounted transformer for the current mobile substation is used in an outdoor low temperature and humid environment.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A vehicle-mounted transformer for a mobile substation comprises a transformer body, a square oil storage cabinet is installed on one side of the top of the transformer body, an insulating bushing assembly is arranged on the other side of the transformer body, and a heat dissipation mechanism is arranged on the side of the transformer body, and the heat dissipation mechanism is symmetrically distributed on two opposite sides of the transformer body;

[0008] The heat dissipation mechanism includes a heat dissipation box, a second air guide module is arranged in the heat dissipation box near the side wall of the transformer body, a second air guide module is arranged on one side of the heat dissipation box near the insulating sleeve assembly, a barrier assembly is arranged between the heat dissipation box and the second air guide module, a partition is installed in the heat dissipation box, the partition is located below the first air guide module, a first air duct and a second air duct are arranged above the partition, the first air duct and the second air duct are located on both sides of the first air guide module, the first air duct is located near the barrier assembly, and an air guide assembly is installed on the top of the transformer body. The air guide assembly includes an air guide pump, which is connected to the first air duct. The first air guide module is composed of a plurality of horizontal heat sinks distributed in a vertical array. A resistance wire heater is installed at the bottom of the second air duct. A blow pump is installed at the bottom of the heat dissipation box. The blow pump is located below the partition and is connected to the resistance wire heater. An air outlet is provided at one end of the partition close to the first air duct, and the air outlet is connected to the second air duct. When the barrier assembly is pulled out, the first air duct is connected to the second air guide module, and the second air guide module is provided with a plurality of blow outlets facing the insulating sleeve assembly.

[0009] As an improved technical solution, the second air guide module includes a plurality of air guide plates distributed in a vertical array, an air guide box is installed on one side of the heat dissipation box, a plurality of the air guide plates are located in the air guide box, and a plurality of air blowing ports are opened on the side of the air guide box facing the insulating sleeve assembly.

[0010] As an improved technical solution, the barrier assembly includes two parallel clamps, each of which has air vents at positions opposite to the wind guide plates, and a pull-out plate is provided between the two clamps, which blocks the air vents when pushed in.

[0011] As an improved technical solution, sliders are installed on the top and bottom of the pull-out plate, and sliding grooves are opened on the top and bottom of the two clamping plates on one side close to the pull-out plate, and the sliders are limited to slide in the sliding grooves.

[0012] As an improved technical solution, when the heat dissipation mechanism is in a heat dissipation state, the heat dissipation wind enters from the first air duct, passes through the first air guide module, enters the second air duct, and is discharged from the air outlet of the partition.

[0013] As an improved technical solution, when the heat dissipation mechanism is in the drying state, drying air enters from the blow pump, passes through the resistance wire heater and the second air duct, passes through the first air guide module, the first air duct and the barrier assembly, and is discharged through the blowing port of the second air guide module.

[0014] As an improved technical solution, at least three groups of shock-absorbing movable mechanisms are installed at the bottom of the transformer body, and the shock-absorbing movable mechanism includes a shaft tube, and the outer wall of the shaft tube is provided with three groups of extrusion plates in a ring array, and a shaft rod is arranged in the shaft tube. By rotating the shaft rod, the shaft rod moves axially in the shaft tube, so that the shock-absorbing movable mechanism is transformed from a buffering and shock-absorbing state to a rolling state.

[0015] As an improved technical solution, the outer wall of the shock-absorbing moving mechanism is installed with three sliding sleeves in a circular array, and multiple groups of the three sliding sleeves are arranged along the axial direction of the shaft tube. The outer wall of the shaft tube is provided with a through hole facing the sliding sleeve, and a sliding rod is arranged in the sliding sleeve. The extending end of the sliding rod is connected to the extrusion plate, and a shock-absorbing spring is arranged outside the sliding rod. The diameter of the shaft rod is smaller than the diameter of the inner wall of the shaft tube. Both ends of the shaft tube are respectively movably sleeved with sleeve plates, and a plug rod is installed on the top of the sleeve plate. The lower end surface of the transformer body is provided with a groove for movably inserting the plug rod.

[0016] As an improved technical solution, a rotating end plate is provided at one end of the shaft tube, one end of the shaft rod is connected to the rotating end plate, a plurality of groups of threaded columns are concentrically sleeved on the outside of the shaft rod, the threaded columns are threadedly connected to the inner wall of the shaft tube, and the threaded columns are located near the through hole.

[0017] As an improved technical solution, an air guide assembly is installed on the top of the transformer body, and the air guide assembly includes a circular sleeve, a water guide plate is installed on the bottom of the circular sleeve, a recessed area is provided in the middle of the water guide plate, and a plurality of leakage holes are provided on the side wall of the air guide box near the recessed area, a support frame is installed on the top of the circular sleeve, and a plurality of annular air guide blades are concentrically installed on the top of the support frame, the inner diameters of the plurality of annular air guide blades increase successively from the inside to the outside, and the annular air guide blades are in an upward and outward open state, and an outer wall of the circular sleeve is connected to an air guide box away from the recessed area, and the input end of the air guide pump is connected to the air guide box.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are:

[0019] (1) The heat dissipation mechanism can realize the discharge of heat dissipation air from right to left and then from the bottom in the heat dissipation state. The heat dissipation air is in full contact with the outer wall of the transformer body, thereby improving the uniformity of heat dissipation of the transformer body. When the environment is low temperature and humid, the heat dissipation mechanism enters the drying state, which can not only achieve the effect of warming the transformer body, but also dry the humid air around the insulating bushing assembly, thereby ensuring the insulation safety of the insulating bushing assembly and the safe and stable use of the transformer.

[0020] (2) By designing the structure of the square oil storage cabinet, the thermal expansion and contraction storage problem of the transformer oil is guaranteed, and space is saved, which fully meets the requirements of limited vehicle transportation height. The insulating bushing assembly includes 35kV elbow-type fully insulating bushing and 10kV elbow-type fully insulating bushing. Through the application of elbow-type fully insulating bushing, the problems of large size of vehicle-mounted transformers for mobile substations, large insulation distance requirements, limited transportation height, and harsh field working environment are solved.

[0021] (3) By arranging a shock-absorbing movable mechanism at the bottom of the transformer body, the shock-absorbing movable mechanism can not only act as a shock-absorbing seat when the transformer is in use, thereby reducing the impact of the transformer's vibration on other equipment, but also when the transformer needs to be moved on the vehicle body, the shock-absorbing movable mechanism can roll and act as a wheel, thereby achieving a dual-purpose effect of the shock-absorbing movable mechanism.

[0022] (4) By installing an insulating bushing assembly on the top of the transformer body, the setting of the insulating bushing assembly can utilize the humidity of the air to exchange heat with the wind, and cool the wind when it passes through a number of annular wind guide blades, so as to achieve lower heat dissipation wind to dissipate heat for the transformer body, further improving the heat dissipation effect of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0024] in:

[0025] Figure 1 It is a schematic diagram of the overall structure of the vehicle-mounted transformer for the mobile substation of the present invention.

[0026] Figure 2 The figure is a schematic structural diagram of a side view of a vehicle-mounted transformer for a mobile substation of the present invention.

[0027] Figure 3 The figure is a schematic structural diagram of the wind guide assembly of the vehicle-mounted transformer for the mobile substation of the present invention.

[0028] Figure 4 The figure is a schematic structural diagram of a cross-section of a circular bushing of a vehicle-mounted transformer for a mobile substation of the present invention.

[0029] Figure 5 The figure is a schematic structural diagram of the heat dissipation mechanism of the vehicle-mounted transformer for the mobile substation of the present invention.

[0030] Figure 6The figure is a schematic diagram of the internal structure of a single-side heat dissipation mechanism of a vehicle-mounted transformer for a mobile substation according to the present invention.

[0031] Figure 7 It is a structural schematic diagram of the pull-out plate of the vehicle-mounted transformer for the mobile substation of the present invention.

[0032] Figure 8 This is a schematic diagram of the structure of the second wind guide module of the vehicle-mounted transformer for the mobile substation of the present invention.

[0033] Fig. 9 It is a schematic structural diagram of the barrier assembly of the vehicle-mounted transformer for the mobile substation of the present invention.

[0034] Fig.10 The present invention is a schematic structural diagram of the bottom shock-absorbing moving mechanism of the vehicle-mounted transformer for a mobile substation.

[0035] Fig.11 The figure is a schematic diagram of the overall structure of the shock absorbing moving mechanism of the vehicle-mounted transformer for the mobile substation of the present invention.

[0036] Fig.12 The present invention is a schematic cross-sectional structural diagram of a vibration-absorbing mobile mechanism of a vehicle-mounted transformer for a mobile substation.

[0037] Description of reference numerals:

[0038] 1. Transformer body; 2. Square oil storage cabinet; 3. Insulating bushing assembly;

[0039] 4. air guide assembly; 41. air guide pump; 42. air guide box; 43. circular sleeve; 44. annular air guide blade; 45. support frame; 46. water leakage hole; 47. water guide plate;

[0040] 5. heat dissipation mechanism; 51. heat dissipation box; 52. second air guide module; 521. air guide plate; 522. air guide box; 53. first air guide module; 54. partition; 55. resistance wire heater; 56. barrier component; 561. clamping plate; 562. air vent; 563. pull-out plate; 564. slider; 565. slide; 57. air pump; 58. first air duct; 59. second air duct;

[0041] 6. shock-absorbing moving mechanism; 61. shaft tube; 611. through hole; 62. shaft rod; 621. threaded column; 622. rotating end plate; 63. sliding sleeve; 64. sliding rod; 65. extrusion plate; 66. shock-absorbing spring; 67. sleeve plate; 68. plug rod. DETAILED DESCRIPTION

[0042] 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.

[0043] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0045] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] Example 1

[0047] Reference Figure 1-12 , which is the first embodiment of the present invention, provides a vehicle-mounted transformer for a mobile substation, the vehicle-mounted transformer for a mobile substation, comprising a transformer body 1, a square oil storage cabinet 2 is installed on one side of the top of the transformer body 1, by designing the structure of the square oil storage cabinet 2, it not only ensures the storage problem of thermal expansion and contraction of transformer oil, but also saves space, and fully meets the requirement of limited vehicle transportation height, an insulating bushing assembly 3 is arranged on the other side of the transformer body 1, the insulating bushing assembly 3 includes a 35kV elbow-type fully insulating bushing and a 10kV elbow-type fully insulating bushing, through the application of the elbow-type fully insulating bushing, the problems of large volume, large insulation distance requirement, limited transportation height, and harsh field working environment of the vehicle-mounted transformer for the mobile substation are solved, and a heat dissipation mechanism 5 is arranged on the side of the transformer body 1, and the heat dissipation mechanism 5 is symmetrically distributed on two opposite sides of the transformer body 1;

[0048] The heat dissipation mechanism 5 includes a heat dissipation box 51, a second air guide module 52 is arranged near the side wall of the transformer body 1 in the heat dissipation box 51, a second air guide module 52 is arranged near the insulating sleeve assembly 3 on one side of the heat dissipation box 51, a barrier assembly 56 is arranged between the heat dissipation box 51 and the second air guide module 52, a partition 54 is installed in the heat dissipation box 51, the partition 54 is located below the first air guide module 53, a first air duct 58 and a second air duct 59 are arranged above the partition 54, the first air duct 58 and the second air duct 59 are located on both sides of the first air guide module 53, and the first air duct 58 is located near the barrier assembly 56, an air guide assembly 4 is installed on the top of the transformer body 1, the air guide assembly 4 includes an air guide pump 41, the air guide pump 41 is connected to the first air duct 58, and the first air guide module 53 is distributed in a vertical array The heat exchange channel is formed between adjacent horizontal heat sinks, a resistance wire heater 55 is installed at the bottom of the second air duct 59, and a blow pump 57 is installed at the bottom of the heat sink box 51. The blow pump 57 is located below the partition 54. The blow pump 57 is located directly below the resistance wire heater 55. The blow pump 57 is connected with the resistance wire heater 55. The wind from the blow pump 57 just blows upward into the resistance wire heater 55 and enters the second air duct 59. An air outlet is provided at one end of the partition 54 close to the first air duct 58, and the air outlet is connected with the second air duct 59. When the barrier assembly 56 is pulled out, the first air duct 58 is connected with the second air guide module 52. The second air guide module 52 is provided with a plurality of blowing outlets facing the insulating sleeve assembly 3, so that a plurality of blowing outlets are respectively provided on both sides of the insulating sleeve assembly 3.

[0049] The second air guide module 52 includes a plurality of air guide plates 521 distributed in a vertical array. An air guide box 522 is installed on one side of the heat dissipation box 51. The plurality of air guide plates 521 are located in the air guide box 522. The air guide box 522 is provided with a plurality of air blowing ports on the side facing the insulating sleeve assembly 3. An air blowing channel is formed between adjacent air guide plates 521. The air blowing channel is opposite to the air vent 562 and the heat exchange channel on one side, and opposite to the air blowing port on the other side.

[0050] In this embodiment, when the heat dissipation mechanism 5 is in the heat dissipation state, the heat dissipation wind enters from the first air duct 58, passes through the first air guide module 53, enters the second air duct 59, and is discharged from the air outlet of the partition 54. The heat dissipation wind is provided by the air guide pump 41 above the heat dissipation box 51. The heat dissipation wind is discharged from the bottom from right to left, fully in contact with the outer wall of the transformer body 1, and improves the uniformity of heat dissipation of the outer wall of the transformer body 1; when the heat dissipation mechanism 5 enters the drying state, the drying wind enters from the blowing pump 57, passes through the resistance wire heater 55 and the second air duct 59, passes through the first air guide module 53. The first air duct 58 and the barrier assembly 56 are discharged through the air outlet of the second air guide module 52. When the outdoor environment is low temperature and humid, before the transformer is used, the air pump 57 and the resistance wire heater 55 are controlled to operate. The air heated by the resistance wire heater 55 is blown to the insulating sleeve assembly 3 through the heat exchange channel, which can not only achieve the effect of warming the transformer body 1, but also dry the humid air around the insulating sleeve assembly 3, thereby ensuring the insulation safety of the insulating sleeve assembly 3 and ensuring the safe and stable use of the transformer.

[0051] Example 2

[0052] Reference Figure 1 , Figure 2 , Figure 6 , Figure 6 , Figure 8 and Fig. 9 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that:

[0053] The blocking assembly 56 includes two parallel clamping plates 561. The clamping plates 561 are provided with air vents 562 at positions corresponding to the air guide plates 521. A pull-out plate 563 is provided between the two clamping plates 561. When the pull-out plate 563 is pushed in, it blocks the air vents 562.

[0054] Slide blocks 564 are respectively installed on the top and bottom of the pull-out plate 563, and slide grooves 565 are respectively opened on the top and bottom of the two clamping plates 561 on one side close to the pull-out plate 563. The slide blocks 564 are limited to slide in the slide grooves 565, and one end of the slide groove 565 passes through the outer wall of the transformer body 1, and the other end does not pass through the clamping plate 561.

[0055] In this embodiment, the heat dissipation mechanism 5 can serve not only as the side wall of the first air duct 58, but also as the side wall of the second air guide module 52 when in a closed state. By pulling the pull-out plate 563 outward from the splint 561, the first air duct 58 and the second air guide module 52 are connected, thereby turning on the warm state of the heat dissipation mechanism 5. When the pull-out plate 563 is pushed into the splint 561, the first air duct 58 and the second air guide module 52 are blocked, and the heat dissipation mechanism 5 enters a heat dissipation state.

[0056] The remaining structures are the same as those of Example 1.

[0057] Example 3

[0058] Reference Figure 1 , Figure 2 , Fig.10 , Fig.11 and Fig.12 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that:

[0059] At least three groups of shock-absorbing movable mechanisms 6 are installed at the bottom of the transformer body 1. The shock-absorbing movable mechanism 6 includes a shaft tube 61. The outer wall of the shaft tube 61 is provided with three groups of extrusion plates 65 in a ring array. The arc range of the extrusion plate 65 is 60°-75°. A shaft rod 62 is provided in the shaft tube 61. By rotating the shaft rod 62, the shaft rod 62 moves axially in the shaft tube 61, so that the shock-absorbing movable mechanism 6 is transformed from a buffering and shock-absorbing state to a rolling state.

[0060] The outer wall of the shock-absorbing moving mechanism 6 is provided with three sliding sleeves 63 in a circular array. The three sliding sleeves 63 are arranged in multiple groups along the axial direction of the shaft tube 61. The outer wall of the shaft tube 61 is provided with a through hole 611 corresponding to the sliding sleeve 63. A sliding rod 64 is provided in the sliding sleeve 63. The extended end of the sliding rod 64 is connected to the extrusion plate 65. A shock-absorbing spring 66 is provided on the outer sleeve of the sliding rod 64. The diameter of the shaft rod 62 is smaller than the inner wall diameter of the shaft tube 61. The two ends of the shaft tube 61 are respectively movably sleeved with sleeve plates 67. The top of the sleeve plate 67 is provided with an insertion rod 68. The lower end surface of the transformer body 1 is provided with a groove for movably inserting the insertion rod 68. Under the action of the gravity of the transformer body 1, the transformer body 1 is seated on a plurality of insertion rods 68, and the bottom of the transformer body 1 contacts the extrusion plate 65 at the top, and under the action of the shock-absorbing spring 66, a shock-absorbing effect is achieved.

[0061] A rotating end plate 622 is provided at one end of the shaft tube 61, and one end of the shaft rod 62 is connected to the rotating end plate 622. A plurality of groups of threaded columns 621 are concentrically sleeved outside the shaft rod 62. The threaded columns 621 are threadedly screwed with the inner wall of the shaft tube 61, and the threaded columns 621 are located near the through hole 611.

[0062] In this embodiment, when the transformer body 1 is in use, the sleeve plate 67 is fixed to the vehicle body. At this time, the bottom of the transformer body 1 is seated on a plurality of insertion rods 68, and the bottom of the transformer body 1 is against the top extrusion plate 65, so that the shock-absorbing spring 66 is squeezed, and the slide bar 64 is inserted into the shaft tube 61 through the through hole 611. At the same time, the shock-absorbing spring 66 at the bottom is also squeezed, so that the vibration of the transformer can be eliminated when the transformer is working, and the shock-absorbing effect is achieved; when the transformer body 1 is not in use and the transformer body 1 needs to be moved from the vehicle body, the sleeve plate 67 is fixed to the vehicle body. By installing and disassembling the sleeve plate 67 and the vehicle body, and then rotating the rotating end plate 622, the shaft rod 62 moves axially in the shaft tube 61, and the transformer body 1 is briefly lifted upward, so that each slide rod 64 is not in the shaft tube 61, and the threaded column 621 is threadedly moved to block the through hole 611, so that the slide rod 64 cannot move. In this state, since the positions of the three extrusion plates 65 are no longer buffered, the three extrusion plates 65 can be used to move the transformer body 1 forward, and the shock-absorbing moving mechanism 6 rolls and acts as a wheel body, thereby achieving the dual-purpose effect of the shock-absorbing moving mechanism 6.

[0063] The remaining structure is the same as that of Example 2.

[0064] Example 4

[0065] Reference Figure 1-4 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that:

[0066] A wind guide assembly 4 is installed on the top of the transformer body 1. The wind guide assembly 4 includes a circular sleeve 43. A water guide plate 47 is installed at the bottom of the circular sleeve 43. A recessed area is provided in the middle of the water guide plate 47. A plurality of leakage holes 46 are provided on the side wall of the wind guide box 42 near the recessed area. A support frame 45 is installed on the top of the circular sleeve 43. A plurality of annular wind guide blades 44 are concentrically installed on the top of the support frame 45. The inner diameters of the plurality of annular wind guide blades 44 increase from the inside to the outside, and the annular wind guide blades 44 are in an upward and outward open state. The outer wall of the circular sleeve 43 is connected to the wind guide box 42 away from the recessed area, and the input end of the wind guide pump 41 is connected to the wind guide box 42.

[0067] In this embodiment, by setting the top of the transformer body 1 as follows Figure 3In the structure shown, when it is rainy, rainwater falls on the plurality of annular air guide blades 44, accumulates in the depression of the water guide plate 47, and is discharged from the position of the water leakage hole 46. At the same time, air enters from above the plurality of annular air guide blades 44, and enters the air guide box 42 after heat exchange with rainwater, so that the temperature of the cooling air supplied to the air guide pump 41 can be lower, and a better heat dissipation effect can be achieved for the transformer; when it is not a rainy season, the wind enters the circular sleeve 43 from the gaps between the plurality of annular air guide blades 44, and can receive wind from any wind direction outdoors. The wind can better enter the circular sleeve 43 along the wind direction, which can reduce the resistance of wind flow and improve the wind supply efficiency.

[0068] The remaining structure is the same as that of Example 3.

[0069] It should be understood that the purpose of these embodiments is only to illustrate the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all of these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A vehicle-mounted transformer for a mobile substation, comprising a transformer body (1), characterized in that: A square oil storage cabinet (2) is installed on one side of the top of the transformer body (1), an insulating bushing assembly (3) is arranged on the other side of the transformer body (1), and a heat dissipation mechanism (5) is arranged on the side of the transformer body (1), and the heat dissipation mechanism (5) is symmetrically distributed on two opposite sides of the transformer body (1); The heat dissipation mechanism (5) comprises a heat dissipation box (51), a second air guide module (52) is arranged in the heat dissipation box (51) at a position close to the side wall of the transformer body (1), a second air guide module (52) is arranged on one side of the heat dissipation box (51) at a position close to the insulating sleeve assembly (3), a barrier assembly (56) is arranged between the heat dissipation box (51) and the second air guide module (52), a partition (54) is installed in the heat dissipation box (51), the partition (54) is located below the first air guide module (53), a first air duct (58) and a second air duct (59) are arranged above the partition (54), the first air duct (58) and the second air duct (59) are located on both sides of the first air guide module (53), the first air duct (58) is located close to the barrier assembly (56), and a guide assembly (56) is installed on the top of the transformer body (1). A wind assembly (4), wherein the wind guide assembly (4) comprises a wind guide pump (41), the wind guide pump (41) is connected to a first wind duct (58), the first wind guide module (53) is composed of a plurality of horizontal heat dissipation plates distributed in a vertical array, a resistance wire heater (55) is installed at the bottom of the second wind duct (59), a blowing pump (57) is installed at the bottom of the heat dissipation box (51), the blowing pump (57) is located below the partition (54), the blowing pump (57) is connected to the resistance wire heater (55), an air outlet is provided at one end of the partition (54) close to the first wind duct (58), and the air outlet is connected to the second wind duct (59), when the barrier assembly (56) is in a pulled-out state, the first wind duct (58) is connected to the second wind guide module (52), and the second wind guide module (52) is provided with a plurality of blowing outlets facing the insulating sleeve assembly (3); The second air guide module (52) comprises a plurality of air guide plates (521) distributed in a vertical array, an air guide box (522) is installed on one side of the heat dissipation box (51), a plurality of the air guide plates (521) are located in the air guide box (522), and a plurality of air blowing ports are opened on a side of the air guide box (522) facing the insulating sleeve assembly (3); The blocking assembly (56) comprises two parallel clamping plates (561), and air vents (562) are provided on the clamping plates (561) at positions corresponding to the plurality of air guide plates (521). A pull-out plate (563) is provided between the two clamping plates (561), and the pull-out plate (563) blocks the position of the air vents (562) when in a pushed-in state.

2. The vehicle-mounted transformer for a mobile substation according to claim 1, characterized in that: Slide blocks (564) are respectively installed on the top and bottom of the pull-out plate (563); slide grooves (565) are respectively opened on the top and bottom of one side of the two clamping plates (561) close to the pull-out plate (563); and the slide blocks (564) are limited to slide in the slide grooves (565).

3. The vehicle-mounted transformer for a mobile substation according to claim 2, characterized in that: When the heat dissipation mechanism (5) is in a heat dissipation state, heat dissipation air enters from the first air duct (58), passes through the first air guide module (53), enters the second air duct (59), and is then discharged from the air outlet of the partition plate (54).

4. The vehicle-mounted transformer for a mobile substation according to claim 3 is characterized in that: When the heat dissipation mechanism (5) is in a drying state, drying air enters from the air pump (57), passes through the resistance wire heater (55) and the second air duct (59), passes through the first air guide module (53), the first air duct (58) and the barrier component (56), and is discharged through the air outlet of the second air guide module (52).

5. The vehicle-mounted transformer for a mobile substation according to claim 4, characterized in that: At least three groups of shock-absorbing movable mechanisms (6) are installed at the bottom of the transformer body (1). The shock-absorbing movable mechanisms (6) include a shaft tube (61). The outer wall of the shaft tube (61) is provided with three groups of extrusion plates (65) in a ring array. A shaft rod (62) is provided inside the shaft tube (61). By rotating the shaft rod (62), the shaft rod (62) moves axially inside the shaft tube (61), so that the shock-absorbing movable mechanism (6) is transformed from a buffering and shock-absorbing state to a rolling state.

6. The vehicle-mounted transformer for a mobile substation according to claim 5, characterized in that: The outer wall of the shock-absorbing moving mechanism (6) is provided with three sliding sleeves (63) in a circular array. The three sliding sleeves (63) are arranged in multiple groups along the axial direction of the shaft tube (61). The outer wall of the shaft tube (61) is provided with a through hole (611) facing the sliding sleeve (63). A sliding rod (64) is provided in the sliding sleeve (63). The extended end of the sliding rod (64) is connected to the extrusion plate (65). A shock-absorbing spring (66) is provided on the outer sleeve of the sliding rod (64). The diameter of the shaft rod (62) is smaller than the inner wall diameter of the shaft tube (61). The two ends of the shaft tube (61) are respectively movably sleeved with sleeve plates (67). The top of the sleeve plate (67) is provided with an insertion rod (68). The lower end surface of the transformer body (1) is provided with a groove for movably inserting the insertion rod (68).

7. The vehicle-mounted transformer for a mobile substation according to claim 6, characterized in that: A rotating end plate (622) is provided at one end of the shaft tube (61), and one end of the shaft rod (62) is connected to the rotating end plate (622). A plurality of groups of threaded columns (621) are coaxially sleeved on the outside of the shaft rod (62). The threaded columns (621) are threadedly screwed to the inner wall of the shaft tube (61), and the threaded columns (621) are located near the through hole (611).

8. The vehicle-mounted transformer for a mobile substation according to any one of claims 1 to 7, characterized in that: A wind guide assembly (4) is installed on the top of the transformer body (1), and the wind guide assembly (4) comprises a circular sleeve (43). A water guide plate (47) is installed on the bottom of the circular sleeve (43), and a recessed area is arranged in the middle of the water guide plate (47). A support frame (45) is installed on the top of the circular sleeve (43), and a plurality of annular wind guide blades (44) are concentrically installed on the top of the support frame (45). The inner diameters of the plurality of annular wind guide blades (44) increase in size from the inside to the outside, and the annular wind guide blades (44) are in an upward and outward opening state. An outer wall of the circular sleeve (43) is connected to an wind guide box (42) at a position away from the recessed area, and an input end of the wind guide pump (41) is connected to the wind guide box (42). A plurality of water leakage holes (46) are provided on the side wall of the wind guide box (42) near the recessed area.

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