Energy-saving on-load voltage regulation oil-immersed power transformer

Abstract

The utility model relates to the technical field of power transformers, in particular to an energy-saving on-load voltage regulation oil-immersed power transformer which comprises a bottom plate, a transformer body, cooling fins and bolts, the transformer body is arranged at the upper end of the bottom plate, the cooling fins are arranged on the side edge of the transformer body at equal intervals, the bottom plate is connected with the bolts in a threaded mode, and the bolts are connected with the transformer body in a threaded mode. Temperature sensing mechanisms are symmetrically arranged on the side edges of the transformer body, heat dissipation mechanisms are symmetrically arranged at the upper end of the bottom plate, and an oil quantity detection mechanism is arranged at the upper end of the transformer body; an oil quantity detection mechanism is arranged, in the using process, when the oil quantity in the transformer body is insufficient, a floating block descends according to the oil level at the same time, and in the descending process of the floating block, when a sliding rod drives a balancing weight to make contact with a second switch, an alarm is given out through the second switch to remind an operator that the oil quantity in the transformer body is insufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of power transformers, in particular to an energy-saving on-load voltage-regulating oil-immersed power transformer. Background Art

[0002] The on-load voltage-regulating oil-immersed power transformer is a device used to regulate voltage. It is mainly composed of an oil tank, an iron core, a winding, etc. Its working principle is to adjust the voltage by adjusting the ratio of the number of turns of the transformer winding. This type of transformer is mainly used in industry and power systems to increase or decrease voltage or maintain a stable voltage output. Its advantages include stable performance, high reliability, long life and strong adaptability. However, the existing on-load voltage-regulating power transformers still have the following problems in actual use:

[0003] Patent No. "CN202011254155.X" discloses an on-load voltage-regulating oil-immersed power transformer. When in use, the device utilizes the main column of the transformer oil-immersed power transformer in combination with the voltage-regulating electrostatic ring to eliminate the field strength concentration caused by the voltage-regulating electrostatic ring, thereby ensuring maximum energy conservation, increasing the average load rate of the transformer oil-immersed power transformer, reducing no-load losses, and improving the quality of electric energy and the stability of the distribution network voltage. The device cannot monitor the oil volume during use, and cannot promptly know the reduction in oil volume during actual use, so its practicality is poor. In addition, the device dissipates heat through a heat sink during use. When the temperature of the device is too high, it cannot assist in heat dissipation, resulting in a reduced life of the device. Utility Model Content

[0004] The utility model aims to solve the above problems and proposes an energy-saving on-load voltage-regulating oil-immersed power transformer, which improves the problem of poor practicality of the existing energy-saving on-load voltage-regulating oil-immersed power transformer.

[0005] An energy-saving on-load voltage-regulating oil-immersed power transformer comprises: a base plate, a transformer body, a heat sink and bolts, wherein the transformer body is arranged at the upper end of the base plate, heat sinks are arranged at equal distances on the sides of the transformer body, the base plate is threadedly connected with bolts, temperature sensing mechanisms are symmetrically arranged on the sides of the transformer body, heat dissipation mechanisms are symmetrically arranged on the upper end of the base plate, and an oil quantity detection mechanism is arranged on the upper end of the transformer body.

[0006] Preferably, a first shell is symmetrically arranged on the side of the transformer body, a second shell is symmetrically arranged on the inner side of the first shell, the second shell is slidably connected to a slider, the slider is connected to a connecting plate, and the connecting plate is slidably connected to the first shell.

[0007] Preferably, a spring column is disposed inside the second shell, and a first switch is disposed inside the second shell.

[0008] Preferably, the temperature sensing mechanism comprises a rubber block, a rubber block is arranged inside the first shell, and the rubber block is arranged on a side of the connecting plate.

[0009] Preferably, two support plates are symmetrically arranged on the upper end of the bottom plate, a circular groove is opened on the side of the support plate, and two filter screens are symmetrically arranged on the inner side of the circular groove.

[0010] Preferably, the heat dissipation mechanism includes a connecting rod, a drive motor and fan blades, a connecting rod is arranged on the inner side of the circular groove, a drive motor is connected to the side of the connecting rod, and fan blades are arranged at equal angles on the side of the output shaft of the drive motor.

[0011] Preferably, a third shell is provided at the upper end of the transformer body, a slide rod is slidably connected to the inner side of the third shell, a counterweight is provided at the upper end of the slide rod, and the counterweight is slidably connected to the inner side of the third shell.

[0012] Preferably, the oil level detection mechanism includes a second switch and a float, the second switch is symmetrically arranged at the bottom inner side of the third shell, the lower end of the slide rod is connected to a float, and the float is arranged inside the transformer body.

[0013] The beneficial effects of the utility model are:

[0014] 1. An oil level detection mechanism is provided. When the oil level in the transformer body is insufficient during use, the floating blocks drop simultaneously according to the oil level. When the floating blocks drop, the sliding rod drives the counterweight block to contact the second switch. At this time, the second switch sends an alarm to remind the operator that the oil level in the transformer body is insufficient;

[0015] 2. A heat dissipation mechanism is provided. When the temperature of the transformer body is too high and cannot be dissipated in time during use, the heat dissipation mechanism is triggered by the temperature sensing mechanism to dissipate the heat of the transformer body, thereby improving the heat dissipation efficiency of the transformer body and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural diagram of the temperature sensing mechanism of the utility model;

[0018] Figure 3 For the utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the heat dissipation mechanism of the utility model;

[0020] Figure 5It is a three-dimensional structural schematic diagram of the oil quantity detection mechanism of the utility model.

[0021] In the figure: 1. bottom plate; 2. transformer body; 3. heat sink; 4. bolt; 5. temperature sensing mechanism; 51. first shell; 52. second shell; 53. slider; 54. connecting plate; 55. spring column; 56. first switch; 57. rubber block; 6. heat dissipation mechanism; 61. support plate; 62. filter; 63. connecting rod; 64. drive motor; 65. fan blade; 7. oil level detection mechanism; 71. third shell; 72. slider; 73. counterweight; 74. second switch; 75. floating block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] When implementing: Figure 1-5 As shown, an energy-saving on-load voltage-regulating oil-immersed power transformer comprises: a base plate 1, a transformer body 2, a heat sink 3 and a bolt 4, wherein the transformer body 2 is arranged on the upper end of the base plate 1, and the heat sink 3 is arranged at equal distances on the side of the transformer body 2, the base plate 1 is threadedly connected with the bolt 4, the side of the transformer body 2 is symmetrically provided with a temperature sensing mechanism 5, the upper end of the base plate 1 is symmetrically provided with a heat dissipation mechanism 6, and the upper end of the transformer body 2 is provided with an oil quantity detection mechanism 7. When the device is in use, the base plate 1 is first installed at a designated position by means of the bolt 4, and then the transformer body 2 is used as required. During the use of the transformer body 2, the heat is dissipated by the heat sink 3 on the side of the transformer body 2, and the temperature of the transformer body 2 is monitored by the temperature sensing mechanism 5 during use. When the temperature of the transformer body 2 is too high, the heat dissipation mechanism 6 is triggered by the temperature sensing mechanism 5 to assist in the heat dissipation of the transformer body 2, and at the same time, the oil quantity inside the transformer body 2 is monitored by the oil quantity detection mechanism 7 during use.

[0024] The transformer body 2 is symmetrically provided with a first shell 51 on its side, and a second shell 52 is symmetrically provided inside the first shell 51 . The second shell 52 is slidably connected with a slider 53 , and the slider 53 is connected with a connecting plate 54 , and the connecting plate 54 is slidably connected with the first shell 51 .

[0025] A spring column 55 is disposed inside the second housing 52 , and a first switch 56 is disposed inside the second housing 52 .

[0026] The temperature sensing mechanism 5 includes a rubber block 57. The rubber block 57 is arranged on the inner side of the first shell 51. The rubber block 57 is arranged on the side of the connecting plate 54. When the device is in use, when the temperature of the transformer body 2 is too high, the rubber block 57 expands due to the heat. The rubber block 57 squeezes the connecting plate 54 during the expansion process. The connecting plate 54 slides on the inner side of the first shell 51. At the same time, the connecting plate 54 squeezes the slider 53 to slide on the inner side of the second shell 52. The slider 53 squeezes the spring column 55 during the sliding process. At the same time, when the slider 53 touches the first switch 56 during the sliding process, the heat dissipation mechanism 6 is triggered by the first switch 56 to perform auxiliary heat dissipation, so as to avoid overheating of the machine during use and cause damage to the device.

[0027] Two support plates 61 are symmetrically arranged at the upper end of the bottom plate 1. A circular groove is opened on the side of the support plate 61. Two filter screens 62 are symmetrically arranged inside the circular groove. When the device is in use, the filter screens 62 prevent debris from entering the inner side of the circular groove.

[0028] The heat dissipation mechanism 6 includes a connecting rod 63, a driving motor 64 and fan blades 65. A connecting rod 63 is arranged on the inner side of the circular groove, and a driving motor 64 is connected to the side of the connecting rod 63. Fan blades 65 are arranged at equal angles on the side of the output shaft of the driving motor 64. When the device is in use, the driving motor 64 is triggered by the first switch 56. After the driving motor 64 is started, the fan blades 65 are driven to rotate. During the rotation of the fan blades 65, air is blown to the second shell 52 to assist in heat dissipation.

[0029] A third housing 71 is disposed at the upper end of the transformer body 2 , a sliding rod 72 is slidably connected to the inner side of the third housing 71 , a counterweight 73 is disposed at the upper end of the sliding rod 72 , and the counterweight 73 is slidably connected to the inner side of the third housing 71 .

[0030] The oil level detection mechanism 7 includes a second switch 74 and a float 75. The second switch 74 is symmetrically arranged at the bottom inner side of the third shell 71. The float 75 is connected to the lower end of the slide bar 72. The float 75 is arranged on the inner side of the transformer body 2. When the device is in use, when the oil level inside the transformer body 2 is sufficient, the float 75 floats on the surface of the oil and pushes the slide bar 72 to slide inside the third shell 71 and pushes the counterweight 73. When the oil level inside the transformer body 2 is insufficient, the float 75 descends simultaneously according to the oil level. When the float 75 drives the counterweight 73 to contact the second switch 74, the second switch 74 issues an alarm to remind the operator that the oil needs to be replenished.

[0031] When the utility model is used, the bottom plate 1 is first installed at a designated position by means of bolts 4, and then the transformer body 2 is used as required. During the use of the transformer body 2, heat is dissipated through the heat sink 3 on the side of the transformer body 2;

[0032] When the temperature of the transformer body 2 is too high, the rubber block 57 expands due to the heat. During the expansion process, the rubber block 57 squeezes the connecting plate 54, and the connecting plate 54 slides inside the first shell 51. At the same time, the connecting plate 54 squeezes the slider 53 to slide inside the second shell 52. During the sliding process, the slider 53 squeezes the spring column 55. At the same time, when the slider 53 touches the first switch 56 during the sliding process, the driving motor 64 is triggered through the first switch 56.

[0033] The driving motor 64 is triggered by the first switch 56. After the driving motor 64 is started, the fan blades 65 are driven to rotate. During the rotation of the fan blades 65, air is blown to the second housing 52 to assist in heat dissipation. At the same time, the filter screen 62 prevents debris from entering the inner side of the circular groove.

[0034] When the oil inside the transformer body 2 is sufficient, the float 75 floats on the surface of the oil and pushes the slide bar 72 to slide inside the third shell 71 and pushes the counterweight 73. When the oil inside the transformer body 2 is insufficient, the float 75 descends simultaneously according to the oil level. When the float 75 drives the counterweight 73 to contact the second switch 74, the second switch 74 sends out an alarm to remind the operator that the oil needs to be replenished.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An energy-saving on-load voltage-regulating oil-immersed power transformer, characterized in that: include: A base plate (1), a transformer body (2), a heat sink (3) and a bolt (4), wherein the transformer body (2) is arranged at the upper end of the base plate (1), heat sinks (3) are arranged at equal distances on the sides of the transformer body (2), the base plate (1) is threadedly connected with bolts (4), temperature sensing mechanisms (5) are symmetrically arranged on the sides of the transformer body (2), heat sink mechanisms (6) are symmetrically arranged on the upper end of the base plate (1), and an oil level detection mechanism (7) is arranged on the upper end of the transformer body (2).

2. The energy-saving on-load voltage-regulating oil-immersed power transformer according to claim 1 is characterized in that: The transformer body (2) is symmetrically provided with a first shell (51) on its side, the first shell (51) is symmetrically provided with a second shell (52) on its inner side, the second shell (52) is slidably connected with a slider (53), the slider (53) is connected with a connecting plate (54), and the connecting plate (54) is slidably connected with the first shell (51).

3. The energy-saving on-load voltage-regulating oil-immersed power transformer according to claim 2 is characterized in that: A spring column (55) is arranged inside the second housing (52), and a first switch (56) is arranged inside the second housing (52).

4. The energy-saving on-load voltage-regulating oil-immersed power transformer according to claim 2 is characterized in that: The temperature sensing mechanism (5) comprises a rubber block (57), the rubber block (57) is arranged inside the first shell (51), and the rubber block (57) is arranged on the side of the connecting plate (54).

5. The energy-saving on-load voltage-regulating oil-immersed power transformer according to claim 1 is characterized in that: Two support plates (61) are symmetrically arranged at the upper end of the bottom plate (1), a circular groove is opened on the side of the support plate (61), and two filter screens (62) are symmetrically arranged inside the circular groove.

6. The energy-saving on-load voltage-regulating oil-immersed power transformer according to claim 5, characterized in that: The heat dissipation mechanism (6) comprises a connecting rod (63), a driving motor (64) and a fan blade (65); a connecting rod (63) is arranged inside the circular groove; a driving motor (64) is connected to a side of the connecting rod (63); and fan blades (65) are arranged at equal angles on a side of an output shaft of the driving motor (64).

7. The energy-saving on-load voltage-regulating oil-immersed power transformer according to claim 1 is characterized in that: A third shell (71) is provided at the upper end of the transformer body (2), a sliding rod (72) is slidably connected to the inner side of the third shell (71), a counterweight (73) is provided at the upper end of the sliding rod (72), and the counterweight (73) is slidably connected to the inner side of the third shell (71).

8. The energy-saving on-load voltage-regulating oil-immersed power transformer according to claim 7 is characterized in that: The oil level detection mechanism (7) comprises a second switch (74) and a float (75); the second switch (74) is symmetrically arranged at the bottom inner side of the third housing (71); the lower end of the slide bar (72) is connected to the float (75); and the float (75) is arranged on the inner side of the transformer body (2).

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