External cooling shell for transformer
By designing an external cooling shell for the transformer and using heat sinks and stirring paddles to accelerate the flow of insulating oil, the problem of poor heat dissipation of insulating oil is solved and efficient cooling of insulating oil is achieved.
Patent Information
- Application Number
- CN202422946625.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The insulating oil of existing transformers has poor heat dissipation effect, which causes the temperature to rise and increases the risk of transformer hazards.
An external cooling shell for transformers was designed, which included heat sinks, auxiliary heat dissipation pipes, a drive motor, and a stirring paddle. Heat dissipation was accelerated by increasing the contact area and flow velocity of the insulating oil.
It effectively improves the cooling efficiency of the insulating oil, reduces the temperature of the transformer, and reduces the probability of danger.
Smart Images
Figure CN223427316U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to an external cooling shell for a transformer. Background Art
[0002] Currently, transformers are widely used in places like local lighting, high-rise buildings, airports, and CNC machinery at ports. Transformers utilize an iron core and coils that are not immersed in insulating oil. The coils and cores are essential components of transformers, and losses occur in both the coils and cores during use. Core losses primarily consist of iron and copper losses. These losses increase the temperature of the transformer, leading to an increase in the temperature of the insulating oil, which can pose a risk to the transformer. Existing equipment often lacks effective heat dissipation for the insulating oil, increasing the risk of potential damage. Utility Model Content
[0003] The utility model provides an external cooling shell for a transformer, which is used to solve the technical problems arising from the above-mentioned background technology.
[0004] An external cooling shell for a transformer includes a main shell and a heat sink. The characteristic is that the heat sinks are arranged around the main shell, auxiliary heat dissipation pipes are passed through the heat sinks, a main exhaust valve is provided on the upper part of the main shell, a negative exhaust valve is provided on the top of the heat sink, a temperature exchange cavity is provided inside the heat sink, and the temperature exchange cavity is connected to the internal space of the main shell, a box is provided at the lower part of the main shell, a drive motor is provided inside the box, a stirring paddle is rotatably provided at the lower end of the interior of the main shell, a supporting frame is provided at the lower part of the interior of the main shell, and the supporting frame is arranged above the stirring paddle.
[0005] Preferably, the transformer uses an external cooling housing, characterized in that the auxiliary heat dissipation pipes are arranged in an array on the heat sink.
[0006] Preferably, the transformer uses an external cooling housing, which is characterized in that gaps are provided between the heat sinks, and the auxiliary heat dissipation pipes pass through the gaps between the heat sinks.
[0007] Preferably, the transformer uses an external cooling housing, which is characterized in that the auxiliary heat dissipation pipe is bent and connected outside the corner of the main housing.
[0008] Preferably, the transformer uses an external cooling housing, characterized in that the negative exhaust valve is arranged outside the upper end of the heat sink.
[0009] Preferably, the external cooling housing for the transformer is characterized in that a bearing plate is provided at the lower end of the housing, and a load-bearing beam is provided between the edge of the bearing plate and the bottom edge of the main housing.
[0010] Preferably, the transformer uses an external cooling housing, which is characterized in that a right-angle gearbox is provided inside the housing, the driving motor drives the stirring paddle through the right-angle gearbox, and a sealed bearing is provided at the right-angle gearbox passing through the main housing.
[0011] Beneficial effects: This solution adopts a cooling method of increasing the contact area of the heat exchange oil in the main shell to accelerate the cooling of the insulating oil. This solution also accelerates the flow of the insulating oil in the main shell, which can accelerate the exchange of high-temperature oil and low-temperature oil, thereby accelerating the cooling efficiency of the insulating oil. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0013] Figure 2 This is the main view of the utility model;
[0014] Figure 3 This is a sectional view of the utility model;
[0015] In the figure: main shell 1, main exhaust valve 101, box body 102, drive motor 1021, bearing plate 1022, load-bearing beam 1023, right-angle shaft gearbox 1024, stirring paddle 103, bearing frame 104, sealed bearing 105, heat sink 2, auxiliary heat dissipation pipe 201, temperature exchange cavity 202, negative exhaust valve 203. DETAILED DESCRIPTION
[0016] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0017] An external cooling shell for a transformer includes a main shell 1 and a heat sink 2. The characteristic is that the heat sink 2 is arranged around the main shell 1, and an auxiliary heat dissipation pipe 201 is passed through the heat sink 2. A main exhaust valve 101 is provided on the upper part of the main shell 1, and a negative exhaust valve 203 is provided on the top of the heat sink 2. A temperature exchange cavity 202 is provided inside the heat sink 2, and the temperature exchange cavity 202 is connected to the internal space of the main shell 1. A box 102 is provided at the lower part of the main shell 1, and a drive motor 1021 is provided inside the box 102. A stirring paddle 103 is rotatably provided at the lower end of the interior of the main shell 1, and a supporting frame 104 is provided at the lower part of the interior of the main shell 1, and the supporting frame 104 is arranged above the stirring paddle 103.
[0018] Furthermore, the auxiliary heat dissipation pipes 201 are arranged in an array on the heat sink 2 .
[0019] Furthermore, gaps are provided between the heat sinks 2 , and the auxiliary heat dissipation pipes 201 pass through the gaps between the heat sinks 2 .
[0020] Furthermore, the auxiliary heat dissipation pipe 201 is bent and connected outside the corner of the main housing 1 .
[0021] Furthermore, the negative exhaust valve 203 is arranged outside the upper end of the heat sink 2 .
[0022] Furthermore, a bearing plate 1022 is provided at the lower end of the box body 102 , and a load-bearing beam 1023 is provided between the edge of the bearing plate 1022 and the bottom edge of the main shell 1 .
[0023] Furthermore, a right-angle gearbox 1024 is provided inside the housing 102 , and the driving motor 1021 drives the stirring paddle 103 through the right-angle gearbox 1024 . A sealed bearing 105 is provided at the right-angle gearbox 1024 passing through the main housing 1 .
[0024] The heat sink 2 is arranged around the main shell 1. The heat sink 2 and the main shell 1 are integrally formed or welded. Auxiliary heat pipes 201 are passed through the heat sink 2. The auxiliary heat pipes 201 are arranged in an array on the heat sink 2. The connection between the auxiliary heat pipes 201 and the heat sink 2 is sealed and welded. The auxiliary heat pipes 201 can be metal copper pipes. There are gaps between the heat sink 2. The auxiliary heat pipes 201 pass through the gaps between the heat sink 2. The auxiliary heat pipes 201 are bent and connected on the outside of the corner of the main shell 1 to facilitate the acceleration of heat exchange. A main exhaust valve 101 is provided on the upper part of the main shell 1, and a negative exhaust valve 203 is provided on the top of the heat sink 2. The negative exhaust valve 203 is arranged on the outside of the upper end of the heat sink 2. When the air pressure in the insulating oil is large, auxiliary exhaust can be provided. A temperature exchange cavity 202 is provided inside the heat sink 2. The temperature exchange cavity 202 is connected to the internal space of the main shell 1. The insulating oil enters the temperature exchange cavity 202 so that it can directly contact the heat sink 2 and the auxiliary heat pipe 201, thereby accelerating heat dissipation. Speed, the lower part of the main shell 1 is provided with a box body 102, the inside of the box body 102 is provided with a drive motor 1021, the lower end of the inner part of the main shell 1 is provided with a stirring paddle 103, the lower part of the inner part of the main shell 1 is provided with a carrier 104, the carrier 104 is provided above the stirring paddle 103, the lower end of the main shell 1 is provided with a carrier plate 1022, the edge of the carrier plate 1022 and the bottom edge of the main shell 1 are provided with a load-bearing beam 1023, the inside of the box body 102 is provided with a right-angle shaft gearbox 1024, the drive motor 1021 The stirring paddle 103 is driven by a right-angle gearbox 1024. A sealed bearing 105 is provided at the right-angle gearbox 1024 passing through the main shell 1. The stirring paddle 103 can accelerate the flow of insulating oil inside the main shell 1 and accelerate the heat exchange. The supporting frame 104 can carry the transformer winding body, so as not to affect the operation of the stirring paddle 103 and not hinder the flow of insulating oil. The supporting plate 1022 and the load-bearing beam 1023 can increase the overall stability, and the sealed bearing 105 avoids leakage of insulating oil.
[0025] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.
Claims
1. An external cooling housing for a transformer, comprising a main housing (1) and a heat sink (2), characterized in that The heat sinks (2) are arranged around the main shell (1), auxiliary heat dissipation pipes (201) are passed through between the heat sinks (2), a main exhaust valve (101) is provided on the upper part of the main shell (1), a negative exhaust valve (203) is provided on the top of the heat sink (2), a temperature exchange cavity (202) is provided inside the heat sink (2), and the temperature exchange cavity (202) is communicated with the internal space of the main shell (1), a box (102) is provided at the lower part of the main shell (1), a driving motor (1021) is provided inside the box (102), a stirring paddle (103) is rotatably provided at the lower end of the interior of the main shell (1), a supporting frame (104) is provided at the lower part of the interior of the main shell (1), and the supporting frame (104) is arranged above the stirring paddle (103).
2. The external cooling housing for transformer according to claim 1, characterized in that The auxiliary heat dissipation tubes (201) are arranged in an array on the heat dissipation fins (2).
3. The external cooling housing for transformer according to claim 1, characterized in that Gaps are provided between the heat sinks (2), and the auxiliary heat dissipation pipes (201) pass through the gaps between the heat sinks (2).
4. The external cooling housing for a transformer according to claim 1, characterized in that The auxiliary heat dissipation pipe (201) is bent and connected outside the corner of the main housing (1).
5. The external cooling housing for transformer according to claim 1, characterized in that The negative exhaust valve (203) is arranged outside the upper end of the heat sink (2).
6. The external cooling housing for a transformer according to claim 1, characterized in that A bearing plate (1022) is provided at the lower end of the box body (102), and a load-bearing beam (1023) is provided between the edge of the bearing plate (1022) and the bottom edge of the main shell (1).
7. The external cooling housing for a transformer according to claim 1, characterized in that A right-angle gearbox (1024) is provided inside the housing (102), and a driving motor (1021) drives the stirring paddle (103) via the right-angle gearbox (1024). A sealed bearing (105) is provided at the location where the right-angle gearbox (1024) passes through the main housing (1).