Transformer with special air duct structure

Abstract

The invention provides a transformer with a special air duct structure. The transformer comprises a transformer body, a base is arranged at the bottom of the transformer body, a coil is arranged in the middle of the base, an air duct shell is arranged outside the coil, an induced draft fan is arranged at the top of the air duct shell, an induced draft opening is formed in the side portion of the air duct shell, and an air outlet is formed in the side portion of the air duct shell. A sealing plate assembly is arranged on the outer side of the air inducing opening. By arranging the special-shaped air duct shell, the heat exchange efficiency with the outside can be improved, the flow speed of air can be increased, and therefore the heat dissipation efficiency is improved on the whole, the air inlet amount can be adjusted according to the actual heating condition through the arrangement of an air inducing opening and a sealing plate assembly, and the heat dissipation effect is easier to control; and the heat dissipation stability and reliability are further improved.

Description

Technical Field

[0001] The invention relates to the field of transformers, and in particular to a transformer with a special air duct structure. Background Art

[0002] Transformers are basic equipment for power transmission and distribution, and are widely used in industries, agriculture, transportation, urban communities, and other fields. Transformers use the principle of electromagnetic induction to change AC voltage. The main components are primary coils, secondary coils, and iron cores (magnetic cores). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. Since transformers generate a lot of heat when working, it is difficult to ensure the stable operation of transformers without designing a heat dissipation structure. Conventional heat dissipation structures are mostly designed to increase the heat exchange area by designing structures such as heat dissipation fins, but this passive heat dissipation method is inefficient.

[0003] In order to solve the above problems, patent document CN201711251418.X discloses a duct structure, duct baffle and phase-shifting rectifier transformer for transformer, which is provided with a duct structure, the duct structure includes an duct baffle, the duct baffle includes a front baffle part and a rear baffle part, the front baffle part and / or the rear baffle part are provided with a baffle avoidance groove for avoiding the axial component on the transformer, an avoidance space is reserved between the inner side edge of the baffle plate and the bottom of the baffle avoidance groove, the axial component is installed in the avoidance space, and the duct structure and the axial component are disassembled / The installation does not affect each other; the outer side of the shielding plate is connected with the avoidance arc to form a continuous arc, so as to avoid the avoidance groove from affecting the diversion performance of the air duct structure and ensure the use effect of the air duct structure; further, the air duct structure includes an air duct sealing plate, and the air duct sealing plate is provided with an avoidance groove for the sealing plate, and the avoidance groove for the sealing plate is consistent with the avoidance groove for the baffle plate, and the air duct sealing plate and the air duct baffle plate can be interchangeable, which is convenient for production and manufacturing; the blocking plate is used to complement the avoidance groove for the sealing plate. After the air duct sealing plate is installed in place, the avoidance groove for the sealing plate is blocked with the blocking plate to prevent air leakage; however, the above-mentioned air duct structure has the following defects:

[0004] 1. Unable to adjust the air intake according to the heating situation;

[0005] 2. The wind speed is fixed. If you want to increase the wind speed, you can only increase the power of the induced draft fan.

[0006] The above problems result in that the air duct structure is still unable to dissipate heat efficiently. Therefore, there is an urgent need for a transformer with a special air duct structure that can solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a transformer with a special air duct structure to solve the problems existing in the above-mentioned prior art.

[0008] To achieve the above object, the present invention provides the following solutions:

[0009] The present invention provides a transformer with a special air duct structure, comprising a transformer body, a base is provided at the bottom of the transformer body, a coil is provided in the middle of the base, an air duct shell is provided outside the coil, an induced draft fan is provided on the top of the air duct shell, an air duct port is provided on the side of the air duct shell, and a sealing plate assembly is provided outside the air duct port.

[0010] Preferably, a wiring lead-out tube is provided on the side of the coil, and the wiring lead-out tube is arranged through the air duct housing.

[0011] Preferably, a sealing layer is provided on the inner side of the wiring lead-out tube, and a flame retardant layer is provided on the outer side thereof.

[0012] Preferably, the air duct shell includes a corrugated board, which is arranged to surround the outside of the coil, the air inlet is opened on the corrugated board, a closing ring is provided on the top of the corrugated board, an exhaust duct is connected to the top of the closing ring, and the draft fan is arranged in the exhaust duct.

[0013] Preferably, the air duct housing is made of heat dissipating plastic material.

[0014] Preferably, the diameter of the closing ring gradually decreases from bottom to top.

[0015] Preferably, the sealing plate assembly includes a driving shaft and a driven shaft, the driving shaft and the driven shaft are rotatably arranged on the side wall of the corrugated board through bearings, a driving gear is sleeved on the bottom of the driving shaft, a driven gear is sleeved on the bottom of the driven shaft, the driving gear is meshed with the driven gear, the bottom of the driving shaft is transmission-connected to the driving motor, a sealing plate is connected to the middle of the driving shaft and the driven shaft, and the sealing plate cooperates with the air vent.

[0016] Preferably, a silicone pad is provided on the surface of the sealing plate.

[0017] Preferably, a filter is provided on the air inlet.

[0018] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0019] The present invention provides a transformer with a special air duct structure, comprising a transformer body, a base is provided at the bottom of the transformer body, a coil is provided in the middle of the base, an air duct shell is provided outside the coil, an induced draft fan is provided at the top of the air duct shell, an air duct port is provided on the side of the air duct shell, and a sealing plate assembly is provided outside the air duct port; by providing a special-shaped air duct shell, not only the heat exchange efficiency with the outside can be increased, but also the air flow rate can be increased, thereby improving the heat dissipation efficiency as a whole; the provision of the air duct port and the sealing plate assembly enables the air intake volume to be adjusted according to the actual heating situation, thereby making the heat dissipation effect easier to control, and further improving the stability and reliability of the heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A longitudinal cross-sectional view of a transformer with a special air duct structure provided by the present invention;

[0022] Figure 2 A transverse cross-sectional view of a transformer with a special air duct structure provided by the present invention;

[0023] Figure 3 A partial structural schematic diagram of a transformer sealing plate assembly with a special air duct structure provided by the present invention. DETAILED DESCRIPTION

[0024] 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.

[0025] The purpose of the present invention is to provide a transformer with a special air duct structure to solve the problems existing in the prior art.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Embodiment 1:

[0028] This embodiment provides a transformer with a special air duct structure, such as Figure 1-3 As shown, it includes a transformer body, a base 1 is provided at the bottom of the transformer body, a coil 2 is provided in the middle of the base 1, an air duct shell 3 is provided outside the coil 2, an induced draft fan 4 is provided on the top of the air duct shell 3, an air duct port 5 is provided on the side of the air duct shell 3, and a sealing plate assembly 6 is provided on the outside of the air duct port 5.

[0029] As an implementation mode, a wiring lead-out tube 7 is provided on the side of the coil 2, and the wiring lead-out tube 7 is arranged through the air duct housing 3, so as to facilitate the line lead-out.

[0030] As an implementation mode, a sealing layer is provided on the inner side of the wiring lead-out tube 7, and a flame retardant layer is provided on the outer side thereof, so as to effectively protect the wiring.

[0031] As an embodiment, the air duct shell 3 includes a corrugated board 31, which can effectively increase the contact area with the external environment, thereby improving the heat dissipation effect. The corrugated board 31 is arranged outside the coil 2, and the air inlet 5 is opened on the corrugated board 31. The top of the corrugated board 31 is provided with a closing ring 32, and the top of the closing ring 32 is connected to an exhaust pipe 33, and the draft fan 4 is arranged in the exhaust pipe 33.

[0032] As an implementation manner, the air duct housing 3 is made of heat dissipation plastic material, such as PA46, TC153, TC154 and the like.

[0033] As an implementation mode, the diameter of the closing ring 32 gradually decreases from bottom to top. As the diameter gradually decreases, the air flow rate gradually increases, thereby improving the heat exchange efficiency.

[0034] As an embodiment, the sealing plate assembly 6 includes a driving shaft 61 and a driven shaft 62, and the driving shaft 61 and the driven shaft 62 are rotatably arranged on the side wall of the corrugated board 31 through a bearing 63. A driving gear 64 is sleeved on the bottom of the driving shaft 61, and a driven gear 65 is sleeved on the bottom of the driven shaft 62. The driving gear 64 is meshed with the driven gear 65. The bottom of the driving shaft 61 is transmission-connected to the driving motor 66, and a sealing plate 67 is connected to the middle of the driving shaft 61 and the driven shaft 62. The sealing plate 67 cooperates with the air vent 5. When the air vent 5 needs to be opened or closed, it is only necessary to drive the motor 66 to drive the driving shaft 61 to rotate, and the driven shaft 62 rotates in the opposite direction under the transmission of the gear, so that the sealing plate 67 opens or closes the air vent 5.

[0035] As an implementation method, a silicone pad 68 is provided on the surface of the sealing plate 67 to ensure the sealing performance.

[0036] As an implementation mode, a filter 8 is provided on the air inlet 5, which can effectively reduce the impurities from entering the transformer.

[0037] The present invention provides a transformer with a special air duct structure. By setting a special-shaped air duct shell 3, it can not only increase the heat exchange efficiency with the outside world, but also increase the air flow rate, thereby improving the heat dissipation efficiency as a whole. The arrangement of the air inlet 5 and the sealing plate assembly 6 enables the air intake volume to be adjusted according to the actual heating situation, thereby making the heat dissipation effect easier to control, further improving the stability and reliability of heat dissipation.

[0038] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A transformer with a special air duct structure, comprising a transformer body, characterized in that: A base (1) is provided at the bottom of the transformer body, a coil (2) is provided in the middle of the base (1), an air duct housing (3) is provided outside the coil (2), an induced draft fan (4) is provided at the top of the air duct housing (3), an air duct outlet (5) is provided on the side of the air duct housing (3), and a sealing plate assembly (6) is provided outside the air duct outlet (5).

2. The transformer with a special air duct structure according to claim 1, characterized in that: A wiring lead-out tube (7) is provided on the side of the coil (2), and the wiring lead-out tube (7) is arranged to penetrate the air duct housing (3).

3. The transformer with a special air duct structure according to claim 2, characterized in that: The inner side of the wiring lead-out tube (7) is provided with a sealing layer, and the outer side thereof is provided with a flame retardant layer.

4. The transformer with a special air duct structure according to claim 1, characterized in that: The air duct housing (3) comprises a corrugated board (31), the corrugated board (31) is arranged to surround the outside of the coil (2), the air inlet (5) is opened on the corrugated board (31), a closing ring (32) is provided at the top of the corrugated board (31), an exhaust pipe (33) is connected to the top of the closing ring (32), and the induced draft fan (4) is arranged in the exhaust pipe (33).

5. The transformer with a special air duct structure according to claim 4, characterized in that: The air duct housing (3) is made of heat dissipating plastic material.

6. The transformer with a special air duct structure according to claim 4, characterized in that: The diameter of the closing ring (32) gradually decreases from bottom to top.

7. The transformer with a special air duct structure according to claim 4, characterized in that: The sealing plate assembly (6) comprises a driving shaft (61) and a driven shaft (62). The driving shaft (61) and the driven shaft (62) are both rotatably arranged on the side wall of the corrugated plate (31) via bearings (63). A driving gear (64) is sleeved on the bottom of the driving shaft (61). A driven gear (65) is sleeved on the bottom of the driven shaft (62). The driving gear (64) meshes with the driven gear (65). The bottom of the driving shaft (61) is transmission-connected to a driving motor (66). A sealing plate (67) is connected to the middle of the driving shaft (61) and the driven shaft (62). The sealing plate (67) cooperates with the air inlet (5).

8. The transformer with a special air duct structure according to claim 7, characterized in that: A silicone pad (68) is provided on the surface of the sealing plate (67).

9. The transformer with a special air duct structure according to claim 1, characterized in that: The air inlet (5) is provided with a filter screen (8).

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