Transformer with safe heat dissipation function

Abstract

The utility model discloses a safe heat dissipation transformer which comprises a transformer body, a protection box is arranged on the outer side of the transformer body, a plurality of heat dissipation holes are formed in the rear end of the protection box, a fan is arranged at the front end of the protection box, a filter screen is arranged at the front end of the fan, and the filter screen is fixedly connected with the protection box. According to the transformer with the safe heat dissipation function, the gears can be driven to rotate by rotating the rotary knobs, so that the multiple sets of secondary fan blades rotate, then the secondary fan blades are effectively limited and fixed through cooperation of the limiting holes and the pull rods, and therefore the air speed is increased by increasing the number of the fan blades; the pull rod is pulled to release the limiting of the secondary fan blade, the knob is rotated reversely, so that the main fan blade and the secondary fan blade coincide, the pull rod is matched with the limiting hole, the secondary fan blade is limited and fixed again, the number of the fan blades is reduced, the wind speed is reduced, and the wind speed can be flexibly controlled to dissipate heat of the transformer.

Description

Technical Field

[0001] The utility model relates to the field of transformers with safe heat dissipation, in particular to a transformer with safe heat dissipation. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, the secondary coil and the iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, and voltage stabilization. Transformers can be divided into distribution transformers, power transformers, fully sealed transformers, combined transformers, dry-type transformers, oil-immersed transformers, single-phase transformers, electric furnace transformers, rectifier transformers, reactors, anti-interference transformers, lightning protection transformers, box-type transformer test transformers, corner transformers, high-current transformers, excitation transformers, etc. Most of the common transformer heat dissipation devices on the market only dissipate heat by setting several groups of heat dissipation fins on the surface of the transformer box, and the heat dissipation effect is not good. In order to solve the above problems, we propose a transformer with safe heat dissipation. Utility Model Content

[0003] The main purpose of the utility model is to provide a transformer with safe heat dissipation, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A transformer with safe heat dissipation comprises a transformer body, a protection box is arranged on the outside of the transformer body, a plurality of heat dissipation holes are arranged at the rear end of the protection box, a fan is arranged at the front end of the protection box, a filter is arranged at the front end of the fan, and the filter is fixedly connected to the protection box.

[0006] Preferably, multiple groups of main fan blades are fixedly connected to the outer side of the fan, and the rear ends of the multiple groups of main fan blades are fixedly connected to magnetic blocks. A gear is provided on the inner side of the fan, and multiple groups of secondary fan blades are meshed on the outer side of the gear, and limiting holes are provided at the rear ends of the multiple groups of secondary fan blades, and a knob is fixedly connected to the rear end of the gear.

[0007] Preferably, a limiting ring is provided on the outer side of the fan, a plurality of groups of limiting blocks are fixedly connected to the front end of the limiting ring, and the plurality of groups of limiting blocks are fixedly connected to the fan, a plurality of groups of limiting sleeves are fixedly connected to the rear end of the limiting ring, a pull rod is slidably connected inside the limiting sleeve, the front end of the pull rod is adapted to the limiting hole, a circular plate is fixedly connected to the outer side of the pull rod, a spring is fixedly connected to the rear end of the circular plate, and the other end of the spring is fixedly connected to the limiting sleeve.

[0008] Preferably, a plurality of groups of slide grooves are arranged on the outer side of the fan, and the secondary blades slide inside the slide grooves through gears.

[0009] Preferably, the front end of the secondary blade is fixedly connected with an iron sheet, and the magnetic block is adapted to the iron sheet.

[0010] Preferably, a bracket is fixedly connected to the front end of the fan, and the bracket is fixedly connected to the protection box.

[0011] Compared with the prior art, the utility model has the following beneficial effects: this is a transformer with safe heat dissipation, which can drive the gear to rotate by rotating the knob, so that multiple groups of secondary fan blades can slide inside the slide groove, and then the secondary fan blades can be effectively limited and fixed through the cooperation of the limit hole and the pull rod, thereby increasing the number of fan blades to increase the wind speed, and when a low wind speed is required, the pull rod is pulled to release the limit of the secondary fan blades, and the knob is rotated in the opposite direction to make the main fan blades overlap with the secondary fan blades, and the secondary fan blades are limited and fixed again through the cooperation of the pull rod and the limit hole, and the main fan blades and the secondary fan blades are further combined into one through the adsorption effect of the magnetic block and the iron sheet, thereby reducing the number of fan blades to reduce the wind speed, and the wind speed can be flexibly controlled to dissipate heat for the transformer, and the effect of use is better than that of the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a transformer with safe heat dissipation according to the utility model;

[0013] Figure 2 This is a schematic diagram of the partial structure of a transformer with safe heat dissipation in the utility model. Figure 1 ;

[0014] Figure 3 This is a schematic diagram of the partial structure of a transformer with safe heat dissipation in the utility model. Figure 2 ;

[0015] Figure 4 This is a cross-sectional view of a limiting ring of a transformer with safe heat dissipation according to the utility model;

[0016] Figure 5 It is a schematic diagram of the enlarged structure of part A of a transformer with safe heat dissipation according to the utility model.

[0017] In the figure: 1. Transformer body; 2. Protection box; 3. Heat dissipation holes; 4. Fan; 41. Main fan blades; 42. Bracket; 43. Gear; 44. Secondary fan blades; 45. Limiting holes; 46. Knob; 47. Magnetic block; 5. Filter; 6. Limiting ring; 61. Limiting sleeve; 62. Limiting block; 63. Round plate; 64. Spring; 65. Pull rod; 7. Slide groove. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-5 As shown, a transformer with safe heat dissipation includes a transformer body 1, a protection box 2 is arranged on the outside of the transformer body 1, a plurality of heat dissipation holes 3 are arranged at the rear end of the protection box 2, a fan 4 is arranged at the front end of the protection box 2, a filter screen 5 is arranged at the front end of the fan 4, and the filter screen 5 is fixedly connected to the protection box 2.

[0020] In this embodiment, multiple groups of main blades 41 are fixedly connected to the outer side of the fan 4, and the rear ends of the multiple groups of main blades 41 are fixedly connected to magnetic blocks 47. A gear 43 is provided on the inner side of the fan 4, and multiple groups of secondary blades 44 are meshed on the outer side of the gear 43. Limiting holes 45 are provided at the rear ends of the multiple groups of secondary blades 44, and a knob 46 is fixedly connected to the rear end of the gear 43.

[0021] Specifically, by turning the knob 46 , the multiple groups of secondary blades 44 can be easily separated from the multiple groups of main blades 41 .

[0022] In this embodiment, a limit ring 6 is provided on the outer side of the fan 4, and a plurality of limit blocks 62 are fixedly connected to the front end of the limit ring 6, and the plurality of limit blocks 62 are all fixedly connected to the fan 4, and a plurality of limit sleeves 61 are fixedly connected to the rear end of the limit ring 6, and a pull rod 65 is slidably connected inside the limit sleeve 61, and the front end of the pull rod 65 is adapted to the limit hole 45, and a circular plate 63 is fixedly connected to the outer side of the pull rod 65, and a spring 64 is fixedly connected to the rear end of the circular plate 63, and the other end of the spring 64 is fixedly connected to the limit sleeve 61.

[0023] Specifically, by pulling the pull rod 65 and cooperating with the limiting hole 45, the secondary fan blade 44 can be conveniently limited.

[0024] In this embodiment, a plurality of groups of slide grooves 7 are arranged on the outer side of the fan 4 , and the secondary blades 44 slide inside the slide grooves 7 via the gears 43 .

[0025] Specifically, by rotating the knob 46 , the secondary blade 44 can be conveniently slid inside the slide groove 7 through the gear 43 .

[0026] In this embodiment, the front end of the secondary blade 44 is fixedly connected with an iron sheet, and the magnetic block 47 is adapted to the iron sheet.

[0027] Specifically, the main blade 41 and the secondary blade 44 can be conveniently fixed together through the adsorption effect of the iron sheet and the magnetic block 47.

[0028] In this embodiment, a bracket 42 is fixedly connected to the front end of the fan 4 , and the bracket 42 is fixedly connected to the protection box 2 .

[0029] Specifically, by fixing the bracket 42 to the protection box 2 , the stability of the fan 4 can be improved.

[0030] It should be noted that the utility model is a transformer with safe heat dissipation. The user rotates the knob 46, and the knob 46 rotates to drive the gear 43 to rotate, so that the secondary fan blade 44 meshed on the gear 43 is rotated through the slide groove 7. At this time, the pull rod 65 is pulled, and the pull rod 65 drives the circular plate 63 to squeeze the spring 64 so as to slide into the interior of the limit ring 6, and the secondary fan blade 44 is limited by the limit block 62. Then the pull rod 65 is released, and the elastic force of the spring 64 can easily slide the pull rod 65 into the limit hole 45 opened on the secondary fan blade 44, so that the secondary fan blade 44 is effectively limited and fixed. When strong wind force is not needed to dissipate heat from the transformer, the pull rod 65 can be pulled to release the limit fixation of the secondary fan blade 44, and then the knob 46 can be rotated in the opposite direction to conveniently release the meshed fan blade 44. The secondary fan blade 44 engaged on the gear 43 rotates in the opposite direction inside the slide groove 7. At this time, the pull rod 65 is pulled to make the pull rod 65 slide into the inside of the limit ring 6. When the main fan blade 41 and the secondary fan blade 44 overlap, the pull rod 65 is released. At this time, the secondary fan blade 44 is limited and fixed again through the cooperation of the limit hole 45 and the pull rod 65, and then the main fan blade 41 and the secondary fan blade 44 are effectively combined into one through the adsorption effect of the magnetic suction block 47 connected to the rear end of the main fan blade 41 and the iron sheet connected to the front end of the secondary fan blade 44, which can effectively prevent the fan 4 from causing instability during rotation. By arranging a filter net 5 at the front end of the fan 4, the wind sucked by the fan 4 can be filtered to prevent dust from adhering to the cooling fins of the transformer body 1 and affecting the heat dissipation of the transformer, which is more practical.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A transformer with safe heat dissipation, comprising a transformer body (1), characterized in that: A protection box (2) is arranged outside the transformer body (1); a plurality of heat dissipation holes (3) are arranged at the rear end of the protection box (2); a fan (4) is arranged at the front end of the protection box (2); a filter screen (5) is arranged at the front end of the fan (4); and the filter screen (5) is fixedly connected to the protection box (2).

2. A transformer with safe heat dissipation according to claim 1, characterized in that: The fan (4) is fixedly connected to the outside of a plurality of main blades (41), and the rear ends of the plurality of main blades (41) are fixedly connected to magnetic blocks (47). A gear (43) is provided on the inside of the fan (4), and the outer side of the gear (43) is meshed with a plurality of secondary blades (44), and the rear ends of the plurality of secondary blades (44) are provided with limiting holes (45), and the rear end of the gear (43) is fixedly connected to a knob (46).

3. A transformer with safe heat dissipation according to claim 2, characterized in that: A limit ring (6) is arranged on the outside of the fan (4), the front end of the limit ring (6) is fixedly connected to a plurality of limit blocks (62), the plurality of limit blocks (62) are all fixedly connected to the fan (4), the rear end of the limit ring (6) is fixedly connected to a plurality of limit sleeves (61), the interior of the limit sleeve (61) is slidably connected to a pull rod (65), the front end of the pull rod (65) is adapted to the limit hole (45), the outside of the pull rod (65) is fixedly connected to a circular plate (63), the rear end of the circular plate (63) is fixedly connected to a spring (64), the other end of the spring (64) is fixedly connected to the limit sleeve (61).

4. A transformer with safe heat dissipation according to claim 2, characterized in that: A plurality of groups of slide grooves (7) are arranged on the outside of the fan (4), and the secondary blades (44) slide inside the slide grooves (7) via gears (43).

5. A transformer with safe heat dissipation according to claim 2, characterized in that: The front end of the secondary fan blade (44) is fixedly connected to an iron sheet, and the magnetic attraction block (47) is adapted to the iron sheet.

6. A transformer with safe heat dissipation according to claim 1, characterized in that: A bracket (42) is fixedly connected to the front end of the fan (4), and the bracket (42) is fixedly connected to the protection box (2).

Images