CN111261384B - a transformer - Google Patents
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- CN111261384B CN111261384B CN202010175040.5A CN202010175040A CN111261384B CN 111261384 B CN111261384 B CN 111261384B CN 202010175040 A CN202010175040 A CN 202010175040A CN 111261384 B CN111261384 B CN 111261384B
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- level gauge
- oil level
- guide plate
- water
- transformer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
本发明公开了一种变压器，包括变压箱、油箱、导流板及油位计；所述油箱固定安装在变压箱内；所述油位计固定连接在变压箱的顶部，且位置偏离变压箱的中心；所述油位计与油箱之间通过油管连接；所述油位计的下方设置有将从油位计上滴落下来的水珠导流到油箱的导流板；所述导流板安装在油箱内；本发明，水流经过导流板，不再接触到导线，防水性能好。
The invention discloses a transformer, which includes a transformer box, an oil tank, a deflector and an oil level gauge; the oil tank is fixedly installed in the transformer box; the oil level gauge is fixedly connected to the top of the transformer box, and its position Offset from the center of the transformer tank; the oil level gauge and the oil tank are connected by an oil pipe; a guide plate is provided below the oil level gauge to guide the water droplets dripping from the oil level gauge to the oil tank; The deflector is installed in the oil tank; according to the present invention, the water flow passes through the deflector and no longer contacts the wires, and the waterproof performance is good.
Description
Technical Field
The application relates to the technical field of transformer waterproofing, in particular to a transformer.
Background
The transformer provides power transformation. The transformer is of various kinds and is mainly divided into a single-phase transformer and a multi-phase transformer, and is mainly composed of an iron core and windings.
Wherein, the YSF oil level gauge oil level pipe adopts glass products. When the temperature difference is large, condensation can occur in the wave flow pipe, and moisture can drop at the upper end of the coil as soon as the time is long, so that the transformer breaks down.
The patent publication No. CN203573775U discloses a waterproof device for a junction box of a transformer oil level gauge, and the waterproof cover is arranged on a fixed support for installing an oil pipe to ensure that the oil level gauge is not affected by rainwater; firstly, as the waterproof cover covers the oil level gauge, rainwater still flows onto the transformer box body along the waterproof cover, under various external factors such as wind power, impact and the like, the rainwater inclines and flows onto the lead wire along a gap between the waterproof cover and the transformer box body, and breakdown of the transformer is still caused, so that the waterproof effect is poor; secondly, if the waterproof cover is tightly combined with the transformer box body, the waterproof cover is airtight and airtight, and the heat dissipation effect is greatly reduced; therefore, it is necessary to design a transformer having a good waterproof effect.
Disclosure of Invention
The technical problems to be solved by the application are as follows: a transformer is provided which prevents moisture from flowing up from an oil level gauge to the upper end of a coil.
In order to solve the technical problems, the application provides the following technical scheme: a transformer comprises a transformer box, an oil tank, a guide plate and an oil level gauge; the oil tank is fixedly arranged in the transformer tank; the oil level gauge is fixedly connected to the top of the transformer tank, and the position of the oil level gauge deviates from the center of the transformer tank; the oil level gauge is connected with the oil tank through an oil pipe; a deflector for guiding the water drops dropping from the oil level gauge to the oil tank is arranged below the oil level gauge; the guide plate is arranged in the oil tank;
the guide plate comprises a guide plate and a guide plate; the guide plate is transversely arranged below the oil level gauge; one end of the guide plate, which is close to the center of the transformer box, is higher than the other end; the drainage plate is fixed on the lower end face of the guide plate; the bottommost end of the drainage plate is arranged towards the bottom of one side of the oil tank; and the bottommost end of the drainage plate is obliquely arranged outside the transformation box.
In an environment with a large temperature difference, water drops are condensed on the outer wall of the oil level gauge, water flows downwards after the water drops are accumulated and contact the guide plates, and then the water drops flow from one side of the oil level gauge, which is close to the center of the transformer tank, to the other side along the transverse guide plates under the action of the height difference of the two ends of the transverse guide plates; so that the water flow passes over the oil level gauge; then, under the drainage effect of the drainage plate, the water drops flow out from the junction of the guide plate and the drainage plate along the surface of the drainage plate towards the bottom end of the oil tank, and are discharged out of the transformer tank; when the water drops flow downwards from the oil level gauge, the water drops do not contact the lead wire any more through the guide plate and the drainage plate, and the waterproof performance is good.
Preferably, the baffle further comprises a side baffle; the side baffle is arranged on one side of the oil level gauge, which is close to the center of the transformer tank, the top end of the side baffle penetrates out of the oil tank, and the height of the side baffle is higher than that of the bottom end of the oil level gauge; one end face of the guide plate is fixedly connected to the bottom end face of the side baffle plate, and is integrally formed with the guide plate.
Through set up at the other side shield with guide plate fixed connection of oil level gauge, can avoid the drop of water on the oil level gauge guide plate to splash from the side shield effectively, further strengthen the water-proof effects, improve transformer security performance.
In an environment with a large temperature difference, water drops are condensed on the outer wall of the oil level gauge, water flows downwards after the water drops are accumulated and contact the guide plates, and then the water drops flow from one side of the oil level gauge, which is close to the center of the transformer tank, to the other side along the transverse guide plates under the action of the height difference of the two ends of the transverse guide plates; so that the water flow passes over the oil level gauge; then, under the drainage effect of the drainage plate, water drops flow downwards along the drainage plate in the oil liquid due to the fact that the density of water is higher than that of the oil liquid from the junction of the guide plate and the drainage plate along the surface of the drainage plate to the bottom end of the oil tank, and then are discharged out of the transformer tank; when the water drops flow downwards from the oil level gauge, the water drops pass through the guide plate and the drainage plate and do not contact the lead any more, so that the waterproof performance is good; and the side baffle plates can effectively prevent water flow from splashing out of the side baffle plates, so that the waterproof effect is further enhanced, and the safety performance of the transformer is improved.
Preferably, the bottom of the oil level gauge is sleeved with a water collecting bucket with a large opening upwards; the small opening of the water collecting bucket is downwards arranged, the small opening of the water collecting bucket is positioned at one side of the side baffle close to the outside of the pressure changing box, and one side wall of the water collecting bucket is attached to the side baffle; the width of the water collecting bucket is smaller than the horizontal width of the guide plate.
Preferably, the inside of the water collecting bucket is also adhered with a water absorbing sponge sleeved at the bottom end of the oil level gauge; the height of the water absorbing sponge is half of the height of the water collecting bucket; the bottom end face of the water absorbing sponge is flush with the bottom end face of the water collecting bucket.
When the water flow is affected by external force and splashed out of the outer wall of the oil level gauge, the water flow collides with the inner wall of the water collecting bucket and flows downwards along the inner wall of the water collecting bucket, then the water is absorbed by the water absorbing sponge, the working temperature of the transformer is high, part of water in the water absorbing sponge is evaporated, when the transformer does not work, and after the water in the water absorbing sponge is accumulated to a certain extent, the water flow drops out of the water absorbing sponge, flows to the flow guide plate in parallel, flows to the bottom of the oil tank under the action of the flow guide plate, and the waterproof effect is improved.
Preferably, a waterproof sleeve which is tightly attached to the outer wall of the oil level gauge is arranged in the water collecting bucket; the two sides of the waterproof sleeve are fixed on the side wall of the water collecting bucket through lock bolts.
Preferably, the top end of the vertical section of the waterproof sleeve is in a pointed cone shape; and a gap for water to flow out exists between the bottom end of the waterproof sleeve and the bottom end of the water collecting bucket.
Preferably, the waterproof jacket has the same height as the water collection bucket; and the bottommost end of the waterproof sleeve is flush with the bottommost end of the water collecting bucket.
Preferably, one end of the lock bolt is fixedly welded on the outer wall of the waterproof sleeve; the other end of the lock bolt penetrates out of the side wall of the water collecting bucket along the horizontal direction; one end of the lock plunger penetrating out of the side wall of the water collecting bucket is locked by a locking nut.
When the water flow flows downwards on the outer wall of the oil level gauge, the top end of the waterproof sleeve is touched, then the waterproof sleeve is clung to the outer wall of the oil level gauge, the water flow is guided to the outer wall of the waterproof sleeve, then the water flow flows downwards along the outer wall of the waterproof sleeve to the guide plate and flows downwards along the guide plate until flowing out from the bottom end of the guide plate, the water flow is prevented from flowing along the oil level gauge, and flows to the guide wire from the gap between the oil level gauge and the guide plate, and the waterproof effect is strong.
Preferably, the baffle plates are fixedly welded on two side edges of the baffle plates, and the baffle strips for preventing water flow from flowing out of the two side edges of the baffle plates are fixedly welded on the two side edges of the baffle plates.
When the water flows along the guide plate, under the influence of external factors, the water flows to the two side edges of the guide plate, and at the moment, the barrier bars block the water flow to continuously flow outwards towards the guide plate, so that the water flow is prevented from flowing to other parts and damage is caused.
Preferably, the baffle is fixed to the inner wall of the oil tank by bolts. And the installation stability of the guide plate is improved.
Compared with the prior art, the application has the beneficial effects that:
A. the water flow passes through the guide plate and the drainage plate, and is not contacted with the lead any more, so that the waterproof performance is good; the side baffles effectively prevent water flow from splashing out of the side baffles, so that the waterproof effect is further enhanced, and the safety performance of the transformer is improved;
B. the water drops splashed by the water bucket mobile phone are absorbed by the water absorption sponge, the working temperature of the transformer is high, part of water in the water absorption sponge is evaporated, when the transformer does not work, and after the water in the water absorption sponge is accumulated to a certain extent, water flows drop out of the water absorption sponge, and the water drops drop to the flow guide plate, so that the waterproof effect is good; the waterproof sleeve is tightly attached to the outer wall of the oil level gauge, separates the water drops from the oil level gauge and guides the water drops to the guide plate so as to prevent the water drops from flowing onto the lead from the gap.
Drawings
FIG. 1 is an overall front cross-sectional view of a transformer according to a first embodiment of the present application;
FIG. 2 is an isometric view of a baffle according to a first embodiment of the present application;
FIG. 3 is an overall front cross-sectional view of a transformer in a second embodiment of the present application;
FIG. 4 is an enlarged view of area A of FIG. 3 in accordance with the present application;
FIG. 5 is an isometric view of a baffle in a third embodiment of the present application;
fig. 6 is a front cross-sectional view of a header in accordance with a fourth embodiment of the application.
Detailed Description
In order to facilitate the understanding of the technical scheme of the present application by those skilled in the art, the technical scheme of the present application will be further described with reference to the accompanying drawings.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
Referring to fig. 1, the embodiment discloses a transformer, which comprises an oil tank 1, a transformer tank 2, a deflector 3 and an oil level gauge 4. The oil tank 1 is fixedly arranged in the transformer tank 2 through bolts. The oil level gauge 4 is fixedly connected to the top of the transformer tank 2 through bolts, and the oil level gauge is deviated from the center of the transformer tank 2. The oil level gauge 4 is connected with the oil tank 1 through an oil pipe. A deflector 3 for guiding the water drops dropping from the oil level gauge 4 to the oil tank 1 is arranged below the oil level gauge 4. The deflector 3 is adhered to the inner wall of the oil tank 1.
Referring to fig. 2, the deflector 3 includes a deflector 32 and a deflector 33 integrally formed; the guide plate 32 is transversely arranged below the oil level gauge 4; one end of the guide plate 32, which is close to the center of the transformer box 2, is higher than the other end; the drainage plate 33 is fixed on the lower end surface of the guide plate 32; the bottommost end of the drainage plate 33 is arranged towards the bottom of one side of the oil tank 1; and the bottommost end of the drainage plate 33 is obliquely arranged outside the transformer tank 2.
The oil level gauge 4 can condense water drops on the outer wall of the oil level gauge 4 in an environment with a large temperature difference, water flows downwards after the water drops are accumulated and contact the guide plates 32, and then the water drops flow from one side of the oil level gauge 4 close to the center of the transformer tank 2 to the other side along the transverse guide plates 32 under the action of the height difference of the two ends of the transverse guide plates 32; so that the water flows over the oil level gauge 4; then, under the drainage effect of the drainage plate 33, the water drops flow out from the junction of the guide plate 32 and the drainage plate 33 along the surface of the drainage plate 33 towards the bottom end of the oil tank 1, and then are discharged out of the transformer tank 2; when the water drops flow downwards from the oil level gauge 4, the water drops pass through the guide plate 32 and the drainage plate 33 and do not contact with the lead any more, so that the waterproof performance is good.
The baffle 3 further comprises side baffles 31; the side baffle 31 is arranged on one side of the oil level gauge 4 near the center of the transformer tank 2, and the top end of the side baffle 31 penetrates out of the oil tank 1 and is higher than the bottom end of the oil level gauge 4; one end surface of the guide plate 32 is fixedly connected to the bottom end surface of the side baffle 31, and is integrally formed with the guide plate 32.
By arranging the side baffle plate 31 fixedly connected with the guide plate 3 beside the oil level gauge 4, water drops on the oil level gauge 4 and the guide plate 3 can be effectively prevented from splashing out of the side baffle plate 31, the waterproof effect is further enhanced, and the safety performance of the transformer is improved.
Referring to fig. 1, the drainage plate 33 is fixed to the outer wall of the oil tank 1 by bolts 7. The installation stability of the baffle 3 is improved.
Working principle: the oil level gauge 4 can condense water drops on the outer wall of the oil level gauge 4 in an environment with a large temperature difference, water flows downwards after the water drops are accumulated and contact the guide plates 32, and then the water drops flow from one side of the oil level gauge 4 close to the center of the transformer tank 2 to the other side along the transverse guide plates 32 under the action of the height difference of the two ends of the transverse guide plates 32; so that the water flows over the oil level gauge 4; then, under the drainage effect of the drainage plate 33, the water drops flow downwards along the drainage plate 33 in the oil liquid due to the fact that the density of the water is higher than that of the oil liquid and flow out of the transformer tank 2 along the surface of the drainage plate 33 from the junction of the guide plate 32 and the drainage plate 33; when the water drops flow downwards from the oil level gauge 4, the water drops pass through the guide plate 32 and the drainage plate 33 and do not contact with the lead any more, so that the waterproof performance is good; and the side baffle plate 31 can effectively prevent water flow from splashing out of the side baffle plate 31, further strengthen the waterproof effect and improve the safety performance of the transformer.
Example two
Referring to fig. 3 and 4, a water collecting bucket 6 with a large opening arranged upwards is sleeved at the bottom of the oil level gauge 4. The small opening of the water collecting bucket 6 is arranged downwards, the small opening of the water collecting bucket 6 is positioned on one side of the side baffle 31, which is close to the outside of the transformer tank 2, and one side wall of the water collecting bucket 6 is attached to the side baffle 31. The width of the header 6 is smaller than the horizontal width of the guide plate 32.
Referring to fig. 3, the water collecting bucket 6 is also adhered with a water absorbing sponge 5 sleeved at the bottom end of the oil level gauge 4. The height of the water absorbing sponge 5 is half of the height of the water collecting bucket 6. The bottom end surface of the water absorbing sponge 5 is flush with the bottom end surface of the water collecting bucket 6.
When the water flow is affected by external force and splashed out of the outer wall of the oil level gauge 4, the water flow hits the inner wall of the water collecting bucket 6 and flows downwards along the inner wall of the water collecting bucket 6, then the water flow is absorbed by the water absorbing sponge 5, the working temperature of the transformer is high, water in a part of the water absorbing sponge 5 is evaporated, when the transformer does not work, and after the water in the water absorbing sponge 5 is accumulated to a certain extent, the water flow drops out of the water absorbing sponge 5 and flows to the guide plate 3, and the water flow flows to the bottom of the oil tank 1 under the action of the guide plate 3, so that the waterproof effect is improved.
Example III
Referring to fig. 5, unlike the present embodiment, the two sides of the baffle 3 are fixedly welded with barrier strips 34 for preventing water from flowing out from the two sides of the baffle 3.
When the water flows along the guide plate 3, under the influence of external factors, the water flows to the two sides of the guide plate 3, and at the moment, the barrier 34 blocks the water flow to flow out of the guide plate 3, so that the water flow is prevented from flowing to other parts and damage is caused.
Example IV
Referring to fig. 6, unlike the second embodiment, a waterproof jacket 8 is mounted in the water collecting bucket 6 and closely attached to the outer wall of the oil level gauge 4. The waterproof jacket 8 is fixed on the side wall of the water collecting bucket 6 by a lock bolt 81 on both sides.
The top end of the vertical section of the waterproof sleeve 8 is in a pointed cone shape. And a gap for water to flow out exists between the bottom end of the waterproof sleeve 8 and the bottom end of the water collecting bucket 6.
The height of the waterproof jacket 8 is the same as that of the water collecting bucket 6. And the bottommost end of the waterproof sleeve 8 is flush with the bottommost end of the water collecting bucket 6.
One end of the lock bolt 81 is fixedly welded on the outer wall of the waterproof sleeve 8. The other end of the latch 81 passes out of the side wall of the sump 6 in the horizontal direction. One end of the lock bolt 81 penetrating out of the side wall of the water collecting bucket 6 is locked by a lock nut.
When the water flow flows downwards on the outer wall of the oil level gauge 4, the top end of the waterproof sleeve 8 is touched, then the waterproof sleeve 8 is clung to the outer wall of the oil level gauge 4, the water flow is guided to the outer wall of the waterproof sleeve 8, then the water flow flows downwards along the outer wall of the waterproof sleeve 8 to the guide plate 3 and flows downwards along the guide plate 3 until flowing out from the bottom end of the guide plate 3, the water flow is prevented from flowing along the oil level gauge 4 and flows to a wire from a gap between the oil level gauge 4 and the guide plate 3, and the waterproof effect is strong.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The above-described embodiments merely represent embodiments of the application, the scope of the application is not limited to the above-described embodiments, and it is obvious to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.
Claims (6)
1. A transformer comprises a transformer box, an oil tank and an oil level gauge; the oil tank is fixedly arranged in the transformer tank; the oil level gauge is fixedly connected to the top of the transformer tank, and the position of the oil level gauge deviates from the center of the transformer tank; the oil level gauge is connected with the oil tank through an oil pipe; the method is characterized in that: a guide plate for guiding water drops dropping from the oil level gauge into the transformer tank is arranged below the oil level gauge;
the guide plate comprises a guide plate and a guide plate; the guide plate is transversely arranged below the oil level gauge; one end of the guide plate, which is close to the center of the transformer box, is higher than the other end; the drainage plate is fixed on the lower end face of the guide plate; the bottommost end of the drainage plate is arranged towards the bottom of one side of the transformer box; the bottommost end of the drainage plate is obliquely arranged outside the transformer box; the deflector also comprises a side baffle; the side baffle is arranged on one side of the oil level gauge, which is close to the center of the transformer tank, and the top end of the side baffle penetrates out of the oil tank and the transformer tank and is higher than the bottom end of the oil level gauge; one end face of the guide plate is fixedly connected to the bottom end face of the side baffle, and the other end of the guide plate penetrates out of the side wall of the oil tank; the side baffle plate and the guide plate are integrally formed;
the bottom of the oil level gauge is sleeved with a water collecting bucket with a large opening upwards; the small opening of the water collecting bucket is downwards arranged, the small opening of the water collecting bucket is positioned at one side of the side baffle close to the outside of the pressure changing box, and one side wall of the water collecting bucket is attached to the side baffle; the width of the water collecting bucket is smaller than the horizontal width of the guide plate; a waterproof sleeve which is tightly attached to the outer wall of the oil level gauge is arranged in the water collecting bucket; the two sides of the waterproof sleeve are fixed on the side wall of the water collecting bucket through lock bolts; the top end of the vertical section of the waterproof sleeve is in a pointed cone shape; a gap for water to flow out exists between the bottom end of the waterproof sleeve and the bottom end of the water collecting bucket;
when the water flow flows downwards on the outer wall of the oil level gauge, the top end of the waterproof sleeve is touched, the waterproof sleeve is tightly attached to the outer wall of the oil level gauge, the water flow is guided to the outer wall of the waterproof sleeve, then, the water flow flows downwards along the outer wall of the waterproof sleeve to the guide plate and continuously flows downwards along the guide plate until flowing out from the bottom end of the guide plate, so that the water flow is prevented from flowing along the oil level gauge and flows to the lead from the gap between the oil level gauge and the transformer tank.
2. A transformer according to claim 1, characterized in that: the inside of the water collecting bucket is adhered with a water absorbing sponge sleeved at the bottom end of the oil level gauge; the height of the water absorbing sponge is half of the height of the water collecting bucket; the bottom end face of the water absorbing sponge is flush with the bottom end face of the water collecting bucket.
3. A transformer according to claim 1, characterized in that: the height of the waterproof sleeve is the same as that of the water collecting bucket; and the bottommost end of the waterproof sleeve is flush with the bottommost end of the water collecting bucket.
4. A transformer according to claim 1, characterized in that: one end of the lock bolt is fixedly welded on the outer wall of the waterproof sleeve; the other end of the lock bolt penetrates out of the side wall of the water collecting bucket along the horizontal direction; one end of the lock plunger penetrating out of the side wall of the water collecting bucket is locked by a locking nut.
5. A transformer according to claim 1, characterized in that: the barrier strips for preventing water flow from flowing out from the two side edges of the guide plate are fixedly welded on the two side edges of the guide plate.
6. A transformer according to claim 1, characterized in that: the drainage plate is fixed on the outer wall of the oil tank through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175040.5A CN111261384B (en) | 2020-03-13 | 2020-03-13 | a transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175040.5A CN111261384B (en) | 2020-03-13 | 2020-03-13 | a transformer |
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| Publication Number | Publication Date |
|---|---|
| CN111261384A CN111261384A (en) | 2020-06-09 |
| CN111261384B true CN111261384B (en) | 2023-10-31 |
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|---|---|---|---|
| CN202010175040.5A Active CN111261384B (en) | 2020-03-13 | 2020-03-13 | a transformer |
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| CN208043259U (en) * | 2018-05-02 | 2018-11-02 | 广东电网有限责任公司 | A kind of temperature of oil in transformer table rain cover and transformer device |
| CN208208497U (en) * | 2018-05-14 | 2018-12-07 | 山东天泓环保工程有限公司 | Fuel tank applied to transformer |
| CN208251702U (en) * | 2018-05-30 | 2018-12-18 | 湖北亿源建筑有限公司 | A kind of construction material protection canopy in construction site |
| CN108630403A (en) * | 2018-07-02 | 2018-10-09 | 贵州金林电子科技有限公司 | A kind of heat dissipating device of transformer |
| CN208643659U (en) * | 2018-07-31 | 2019-03-26 | 文国鹏 | A kind of classifiable multi-functional school lunch service's refuse disposal installation |
| CN109285667A (en) * | 2018-10-26 | 2019-01-29 | 江苏悦成变压器有限公司 | A kind of dry-type transformer that security performance is high |
| CN109346272A (en) * | 2018-11-22 | 2019-02-15 | 安徽惠明机械制造有限公司 | A kind of high frequency transformer water cooling type protection cabinets |
| CN110021471A (en) * | 2019-05-22 | 2019-07-16 | 广东敞开电气有限公司 | Three-dimensional wound core dry type transformer and its waterproof radiating structure |
| CN209691633U (en) * | 2019-06-08 | 2019-11-26 | 国网冀北电力有限公司廊坊供电公司 | Rainproof device suitable for outdoor transformer on-load tap-changer motor box |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A type of transformer Effective date of registration: 20231219 Granted publication date: 20231031 Pledgee: Anhui Suzhou Rural Commercial Bank Co.,Ltd. Pledgor: Anhui Zhongbian Transformer Co.,Ltd. Registration number: Y2023980072739 |
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Granted publication date: 20231031 Pledgee: Anhui Suzhou Rural Commercial Bank Co.,Ltd. Pledgor: Anhui Zhongbian Transformer Co.,Ltd. Registration number: Y2023980072739 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Making process of alloy for magnetic core of transformer Granted publication date: 20231031 Pledgee: Anhui Suzhou Rural Commercial Bank Co.,Ltd. Pledgor: Anhui Zhongbian Transformer Co.,Ltd. Registration number: Y2025980055150 |