A dry type transformer

Abstract

The present invention discloses a dry-type transformer, including a base, a shell and a clamping plate, characterized in that: the bottom of the base is provided with a foot and an air inlet, and a blower is provided inside the base, the blower is provided with an air suction pipe and an air delivery pipe, and the air suction pipe is extended into the air inlet, a connecting pipe is provided at the top of the shell, a coil is provided inside the shell, the bottom of the clamping plate is connected with the connecting pipe, a connecting terminal and a hanging ear are provided on the clamping plate, a connecting piece is provided on the connecting terminal, and the connecting plate is connected with a contact head on the shell through a connecting wire. The present invention is provided with a filter screen with a horizontal structure in the air inlet, and the blower sucks the airflow under the base into the air inlet through the air suction pipe. The airflow can be filtered through the filter screen in the air inlet to prevent dust in the airflow from entering the dry-type transformer, thereby improving the dust removal effect of the dry-type transformer and also improving the sensitivity of the dry-type transformer during operation.

Description

Technical Field

[0001] The invention relates to the technical field of transformer processing, in particular to a dry-type transformer. Background Art

[0002] The existing dry-type transformer cabinet mainly relies on fans for forced air cooling. In order to maintain air circulation, air inlets need to be opened on the cabinet. External dust can easily enter the cabinet through the air inlets, causing damage to the electronic components in the cabinet. For example, the patent with application number 201610646921.4 discloses an air-cooled dry-type transformer, which solves the problem that the dry-type transformer cannot be dehumidified and dusted, but it still has the problems of not being able to reduce the noise of the dry-type transformer, poor shock absorption effect of the dry-type transformer, and low heat dissipation efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a dry-type transformer with reasonable structural design, which can reduce the noise of the dry-type transformer, has good shock absorption effect and high heat dissipation efficiency, in order to solve the problems that the existing dry-type transformers cannot reduce the noise of the dry-type transformers, have poor shock absorption effect and low heat dissipation efficiency.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A dry-type transformer comprises a base, a shell and a clamping plate, characterized in that: a foot and an air inlet are arranged at the bottom of the base, and a blower is arranged inside the base, an air suction pipe and an air delivery pipe are arranged on the blower, the air suction pipe is extended into the air inlet, and a ventilation pipe is arranged on the air delivery pipe, the blower blows airflow from the air delivery pipe and the ventilation pipe into the coil, cools and dissipates the heat of the coil during operation, and the heat generated by the coil is carried by the airflow and discharged into the exhaust slot under the action of the exhaust fan, and is discharged from both ends of the exhaust slot, thereby improving the heat dissipation efficiency and heat dissipation effect of the dry-type transformer and extending the service life of the dry-type transformer, a connecting pipe is arranged on the top of the shell, a coil is arranged inside the shell, a contact head is arranged on the outer wall of the shell, and the bottom of the shell is mounted on the base, the bottom of the clamping plate is connected to the connecting pipe, a connecting terminal and a lifting ear are arranged on the clamping plate, a connecting piece is arranged on the connecting terminal, and the connecting plate is connected to the contact head on the shell through a connecting wire, and the lifting ear is convenient for hoisting the dry-type transformer, thereby improving the transportation or installation efficiency of the dry-type transformer.

[0006] Preferably, the ventilation pipe on the air supply pipe of the blower in the base vertically penetrates into the coil, and the blower blows the airflow from the air supply pipe and the ventilation pipe into the coil to cool and dissipate the heat of the coil during operation. The airflow carries the heat generated by the coil and is discharged into the exhaust slot under the action of the exhaust fan, and is discharged from both ends of the exhaust slot, thereby improving the heat dissipation efficiency and heat dissipation effect of the dry-type transformer and extending the service life of the dry-type transformer.

[0007] Preferably, a filter screen with a transverse structure is provided in the air inlet, and the blower sucks the airflow below the base into the air inlet through the suction pipe. The airflow can be filtered by the filter screen in the air inlet to prevent dust in the airflow from entering the dry-type transformer, thereby improving the dust removal effect of the dry-type transformer and also improving the sensitivity of the dry-type transformer during operation.

[0008] Preferably, the contact heads on the two adjacent shells are connected by a connecting rod. The contact heads on the two adjacent shells are connected by the connecting rod, so that the multiple coils are connected together, thereby improving the quality performance of the dry-type transformer.

[0009] Preferably, an insulating block is provided between the coil in the shell and the base, and epoxy resin is poured between the inside of the shell and the coil, thereby improving the insulation performance of the dry-type transformer. The insulating block can improve the insulation performance between the coil and the base, thereby further improving the insulation performance of the dry-type transformer.

[0010] Preferably, a connecting column is provided in the base foot, a bottom pad is provided at the bottom of the connecting column, and a spring is provided between the top of the base foot and the connecting column. By rotating the position of the connecting column in the base foot, the height between the base foot and the connecting column can be increased, so that the dry-type transformer meets the installation needs of different sites. On the other hand, the elasticity between the connecting column and the base foot is increased by the spring, so that the installed dry-type transformer has the following buffering performance, thereby improving the shock absorption effect of the dry-type transformer.

[0011] Preferably, an exhaust slot with both ends passing through the splint is opened in the splint, a ventilation hole is arranged on the splint below the exhaust slot, and an exhaust fan is arranged in the ventilation hole. The blower blows the airflow from the air supply pipe and the ventilation pipe into the coil to cool down and dissipate the heat of the coil during operation. The airflow carries the heat generated by the coil and is discharged into the exhaust slot under the action of the exhaust fan, and is discharged from both ends of the exhaust slot, thereby improving the heat dissipation efficiency and heat dissipation effect of the dry-type transformer.

[0012] Preferably, the top of the exhaust slot is set to a wavy structure, and sound-absorbing cotton is laid on the top of the exhaust slot. The airflow carries heat and blows to the top of the exhaust slot with a curved structure under the action of the exhaust fan, disrupting the flow direction of the airflow, thereby achieving the purpose of reducing noise and improving the noise reduction effect. The sound-absorbing cotton can absorb part of the noise generated by the airflow flow, further improving the noise reduction effect of the dry-type transformer.

[0013] Beneficial effects: The present invention uses a blower to blow air from the air duct and the ventilation duct into the coil, so as to cool and dissipate the heat of the coil during operation. The airflow carries the heat generated by the coil and is discharged into the exhaust slot under the action of the exhaust fan, and is discharged from both ends of the exhaust slot, thereby improving the heat dissipation efficiency and heat dissipation effect of the dry-type transformer and extending the service life of the dry-type transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0016] Figure 3 It is another schematic diagram of the implementation structure of the present invention.

[0017] Figure 4 It is a partial structural schematic diagram of the present invention, illustrating the connection structure between the base and the shield.

[0018] In the figure: 1. base, 2. shell, 3. splint, 4. blower, 5. foot, 6. air inlet, 7. suction pipe, 8. air supply pipe, 9. ventilation pipe, 10. filter, 11. connecting column, 12. bottom pad, 13. spring, 14. connecting pipe, 15. coil, 16. contact head, 17. insulating block, 18. connecting terminal, 19. lifting ear, 20. exhaust slot, 21. ventilation hole, 22. connecting piece, 23. exhaust fan, 24. sound-absorbing cotton, 25. connecting wire, 26. connecting rod, 27. outlet pipe, 28. column, 29. shield. DETAILED DESCRIPTION

[0019] The present invention will be described in more detail below with reference to the accompanying drawings.

[0020] Embodiment 1:

[0021] As attached Figure 1-2As shown, a dry-type transformer includes a base 1, a shell 2 and a clamping plate 3, characterized in that: the bottom of the base 1 is provided with a foot 5 and an air inlet 6, and a blower 4 is provided in the base 1, and the blower 4 is provided with an air suction pipe 7 and an air delivery pipe 8, the air suction pipe 7 is extended into the air inlet 6, and a ventilation pipe 9 is provided on the air delivery pipe 8, the blower 4 blows air from the air delivery pipe 8 and the ventilation pipe 9 into the coil 15, cools and dissipates the heat of the coil 15 during operation, and the heat generated by the operation of the coil 15 is carried by the air flow and discharged into the exhaust slot 20 under the action of the exhaust fan 23, and is discharged from both ends of the exhaust slot 20 , improve the heat dissipation efficiency and heat dissipation effect of the dry-type transformer, and extend the service life of the dry-type transformer. A connecting pipe 14 is arranged on the top of the shell 2, a coil 15 is arranged in the shell 2, a contact head 16 is arranged on the outer wall of the shell 2, and the bottom of the shell 2 is installed on the base 1. The bottom of the clamping plate 3 is connected to the connecting pipe 14, and a connecting terminal 18 and a lifting ear 19 are arranged on the clamping plate 3. A connecting piece 22 is arranged on the connecting terminal 18, and the connecting plate is connected to the contact head 16 on the shell 2 through a connecting line 25. The lifting ear 19 is used to facilitate the lifting of the dry-type transformer, thereby improving the transportation or installation efficiency of the dry-type transformer.

[0022] Preferably, the ventilation pipe 9 on the air supply pipe 8 of the blower 4 in the base 1 vertically penetrates into the coil 15, and the blower 4 blows the airflow from the air supply pipe 8 and the ventilation pipe 9 into the coil 15 to cool down and dissipate the heat of the coil 15 during operation. The airflow carries the heat generated by the coil 15 and is discharged into the exhaust slot 20 under the action of the exhaust fan 23, and is discharged from both ends of the exhaust slot 20, thereby improving the heat dissipation efficiency and heat dissipation effect of the dry-type transformer and extending the service life of the dry-type transformer.

[0023] Preferably, a filter screen 10 with a transverse structure is provided in the air inlet hole 6, and the blower 4 sucks the airflow below the base 1 into the air inlet hole 6 through the suction pipe 7. The airflow can be filtered by the filter screen 10 in the air inlet hole 6 to prevent dust in the airflow from entering the dry-type transformer, thereby improving the dust removal effect of the dry-type transformer and also improving the sensitivity of the dry-type transformer during operation.

[0024] Preferably, the contact heads 16 on the two adjacent housings 2 are connected by a connecting rod 26. The contact heads 16 on the two adjacent housings 2 are connected by the connecting rod 26, so that the multiple coils 15 are connected together, thereby improving the quality performance of the dry-type transformer.

[0025] Preferably, an insulating block 17 is provided between the coil 15 in the housing 2 and the base 1, and epoxy resin is poured between the inside of the housing 2 and the coil 15, thereby improving the insulation performance of the dry-type transformer. The insulating block 17 can improve the insulation performance between the coil 15 and the base 1, thereby further improving the insulation performance of the dry-type transformer.

[0026] Preferably, a connecting column 11 is provided in the base 5, a bottom pad 12 is provided at the bottom of the connecting column 11, and a spring 13 is provided between the top of the base 5 and the connecting column 11. By rotating the position of the connecting column 11 in the base 5, the height between the base 5 and the connecting column 11 can be increased, so that the dry-type transformer meets the installation needs of different sites. On the other hand, the elasticity between the connecting column 11 and the base 5 is increased by the spring 13, so that the installed dry-type transformer has the following buffering performance, thereby improving the shock absorption effect of the dry-type transformer.

[0027] Preferably, an exhaust slot 20 is provided in the splint 3 with both ends passing through the splint 3, a ventilation hole 21 is provided on the splint 3 below the exhaust slot 20, and an exhaust fan 23 is provided in the ventilation hole 21, and the blower 4 blows the airflow from the air supply pipe 8 and the ventilation pipe 9 into the coil 15 to cool down and dissipate the heat of the coil 15 during operation. The heat generated by the coil 15 is carried by the airflow and discharged into the exhaust slot 20 under the action of the exhaust fan 23, and is discharged from both ends of the exhaust slot 20, thereby improving the heat dissipation efficiency and heat dissipation effect of the dry-type transformer.

[0028] Preferably, the top of the exhaust slot 20 is set to a wavy structure, and sound-absorbing cotton 24 is laid on the top of the exhaust slot 20. The airflow carries heat and blows to the top of the exhaust slot 20 with a curved structure under the action of the exhaust fan 23, disrupting the flow direction of the airflow, thereby achieving the purpose of reducing noise and improving the noise reduction effect. The sound-absorbing cotton 24 can absorb part of the noise generated by the flow of the airflow, further improving the noise reduction effect of the dry-type transformer.

[0029] Embodiment 2:

[0030] As attached Figure 3-4As shown, a dry-type transformer includes a base 1, a shell 2 and a clamping plate 3, characterized in that: the bottom of the base 1 is provided with a foot 5 and an air inlet 6, and a blower 4 is provided in the base 1, and the blower 4 is provided with an air suction pipe 7 and an air delivery pipe 8, the air suction pipe 7 is extended into the air inlet 6, and a ventilation pipe 9 is provided on the air delivery pipe 8, the blower 4 blows air from the air delivery pipe 8 and the ventilation pipe 9 into the coil 15, cools and dissipates the heat of the coil 15 during operation, and the heat generated by the operation of the coil 15 is carried by the air flow and discharged into the exhaust slot 20 under the action of the exhaust fan 23, and is discharged from both ends of the exhaust slot 20 , improve the heat dissipation efficiency and heat dissipation effect of the dry-type transformer, and extend the service life of the dry-type transformer. A connecting pipe 14 is arranged on the top of the shell 2, a coil 15 is arranged in the shell 2, a contact head 16 is arranged on the outer wall of the shell 2, and the bottom of the shell 2 is installed on the base 1. The bottom of the clamping plate 3 is connected to the connecting pipe 14, and a connecting terminal 18 and a lifting ear 19 are arranged on the clamping plate 3. A connecting piece 22 is arranged on the connecting terminal 18, and the connecting plate is connected to the contact head 16 on the shell 2 through a connecting line 25. The lifting ear 19 is used to facilitate the lifting of the dry-type transformer, thereby improving the transportation or installation efficiency of the dry-type transformer.

[0031] Preferably, the ventilation pipe 9 on the air supply pipe 8 of the blower 4 in the base 1 vertically penetrates into the coil 15, and the blower 4 blows the airflow from the air supply pipe 8 and the ventilation pipe 9 into the coil 15 to cool down and dissipate the heat of the coil 15 during operation. The airflow carries the heat generated by the coil 15 and is discharged into the exhaust slot 20 under the action of the exhaust fan 23, and is discharged from both ends of the exhaust slot 20, thereby improving the heat dissipation efficiency and heat dissipation effect of the dry-type transformer and extending the service life of the dry-type transformer.

[0032] Preferably, a filter screen 10 with a transverse structure is provided in the air inlet hole 6, and the blower 4 sucks the airflow below the base 1 into the air inlet hole 6 through the suction pipe 7. The airflow can be filtered by the filter screen 10 in the air inlet hole 6 to prevent dust in the airflow from entering the dry-type transformer, thereby improving the dust removal effect of the dry-type transformer and also improving the sensitivity of the dry-type transformer during operation.

[0033] Preferably, the contact heads 16 on the two adjacent housings 2 are connected by a connecting rod 26. The contact heads 16 on the two adjacent housings 2 are connected by the connecting rod 26, so that the multiple coils 15 are connected together, thereby improving the quality performance of the dry-type transformer.

[0034] Preferably, an insulating block 17 is provided between the coil 15 in the housing 2 and the base 1, and epoxy resin is poured between the inside of the housing 2 and the coil 15, thereby improving the insulation performance of the dry-type transformer. The insulating block 17 can improve the insulation performance between the coil 15 and the base 1, thereby further improving the insulation performance of the dry-type transformer.

[0035] Preferably, a connecting column 11 is provided in the base 5, a bottom pad 12 is provided at the bottom of the connecting column 11, and a spring 13 is provided between the top of the base 5 and the connecting column 11. By rotating the position of the connecting column 11 in the base 5, the height between the base 5 and the connecting column 11 can be increased, so that the dry-type transformer meets the installation needs of different sites. On the other hand, the elasticity between the connecting column 11 and the base 5 is increased by the spring 13, so that the installed dry-type transformer has the following buffering performance, thereby improving the shock absorption effect of the dry-type transformer.

[0036] Preferably, an exhaust slot 20 is provided in the splint 3 with both ends passing through the splint 3, a ventilation hole 21 is provided on the splint 3 below the exhaust slot 20, and an exhaust fan 23 is provided in the ventilation hole 21, and the blower 4 blows the airflow from the air supply pipe 8 and the ventilation pipe 9 into the coil 15 to cool down and dissipate the heat of the coil 15 during operation. The heat generated by the coil 15 is carried by the airflow and discharged into the exhaust slot 20 under the action of the exhaust fan 23, and is discharged from both ends of the exhaust slot 20, thereby improving the heat dissipation efficiency and heat dissipation effect of the dry-type transformer.

[0037] Preferably, the top of the exhaust slot 20 is set to a wavy structure, and sound-absorbing cotton 24 is laid on the top of the exhaust slot 20. The airflow carries heat and blows to the top of the exhaust slot 20 with a curved structure under the action of the exhaust fan 23, disrupting the flow direction of the airflow, thereby achieving the purpose of reducing noise and improving the noise reduction effect. The sound-absorbing cotton 24 can absorb part of the noise generated by the flow of the airflow, further improving the noise reduction effect of the dry-type transformer.

[0038] Preferably, the air supply pipe 8 is provided with an air outlet pipe 27, and the air outlet pipe 27 is passed through the base 1 between the outer shells 2 and 2, and a column 28 is provided on the base 1 between the outer shells 2 and 2, and a shield 29 is provided on the column 28, and the shield 29 covers the top of the air outlet pipe 27, and the blower 4 discharges the airflow from the air supply pipe 8 and the air outlet pipe 27. The exhaust of the air outlet pipe 27 can accelerate the airflow between the outer shells 2 and 2, avoid heat accumulation between the outer shells 2 and 2, and improve the heat dissipation efficiency and heat dissipation effect of the dry-type transformer. The shield 29 can not only change the flow direction of the airflow discharged from the air outlet pipe 27, but also prevent rainwater and dust from entering the base 1 from the air outlet pipe 27, thereby improving the safety of the dry-type transformer.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0040] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.

Claims

1. A dry-type transformer, comprising a base, a housing and a clamping plate, characterized in that: The bottom of the base is provided with a foot and an air inlet, and a blower is arranged in the base, the blower is provided with an air suction pipe and an air delivery pipe, the air suction pipe is extended into the air inlet, and a ventilation pipe is arranged on the air delivery pipe, a connecting pipe is arranged at the top of the shell, a coil is arranged in the shell, a contact head is arranged on the outer wall of the shell, and the bottom of the shell is installed on the base, the bottom of the clamping plate is connected with the connecting pipe, a connecting terminal and a hanging ear are arranged on the clamping plate, a connecting piece is arranged on the connecting terminal, and the connecting piece is connected to the contact head on the shell through a connecting line, a connecting column is arranged in the foot, a bottom pad is arranged at the bottom of the connecting column, and a spring is arranged between the top of the foot and the connecting column, an exhaust groove with both ends passing through the clamping plate is opened in the clamping plate, a ventilation hole is arranged on the clamping plate below the exhaust groove, and an exhaust fan is arranged in the ventilation hole, the top of the exhaust groove is arranged as a wavy structure, and sound-absorbing cotton is laid on the top of the exhaust groove; the ventilation pipe on the air delivery pipe of the blower in the base vertically penetrates into the coil.

2. The dry-type transformer according to claim 1, characterized in that: A filter screen with a transverse structure is arranged in the air inlet hole.

3. The dry-type transformer according to claim 1, characterized in that: The contact heads on the housing are connected via a connecting rod.

4. The dry-type transformer according to claim 1, characterized in that: An insulating block is arranged between the coil in the shell and the base.

Images