CN113690029A - High-stability transformer with overheating early warning function - Google Patents
High-stability transformer with overheating early warning function Download PDFInfo
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- CN113690029A CN113690029A CN202111253206.1A CN202111253206A CN113690029A CN 113690029 A CN113690029 A CN 113690029A CN 202111253206 A CN202111253206 A CN 202111253206A CN 113690029 A CN113690029 A CN 113690029A
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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
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/02—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using only mechanical transmission
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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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
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- Business, Economics & Management (AREA)
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- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a high-stability transformer for overheat early warning, which belongs to the field of transformers and is characterized in that through the arrangement of light-gathering strips, when the transformer is overheated, the thermal module and the thermal drop ring between the thermal covered pre-changing rods are thermally melted to release the fixation of the thermal module, the thermal module drives the magnetic slide to move downwards and gather together, so that the original light-gathering strips which emit light at intervals show the phenomenon of gathering and emitting light at the bottom, thereby realizing the overheating early warning effect on workers, and in addition, as the heat actuated block moves downwards, the hot-melting heat drop ring is gradually coated on the heat covering pre-variable rod, therefore, the phenomenon of color stripes is presented above the light-emitting part, the overheating early warning effect on workers is better due to double changes, the overheating can be effectively and timely treated, the stability of the transformer is remarkably improved, and potential safety hazards possibly caused by overheating are greatly reduced.
Description
Technical Field
The invention relates to the field of transformers, in particular to a high-stability transformer with overheat early warning function.
Background
A Transformer (Transformer) is a device that changes an alternating-current voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). Transformer cooling is the dissipation of heat generated by an operating transformer by some means. During transformer operation, heat generated by losses in the windings and core must be dissipated in time to avoid insulation damage due to overheating. For a small-capacity transformer, the ratio of the external surface area to the volume of the transformer is relatively large, and heat can be dissipated by radiation and natural convection in a self-cooling mode.
The transformer can produce a large amount of heats when the operation, thereby sets up the heat dissipation scale increase heat radiating area on the transformer surface usually among the prior art, reaches radiating effect, when the in-service use, has the abnormal conditions of high temperature, when taking place the temperature anomaly, if do not in time discover and can not in time carry out corresponding measure, influences the safety and stability operation of transformer easily, has certain potential safety hazard even.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a high-stability transformer with overheat early warning, through the arrangement of a light-gathering strip, when the transformer is overheated, a heat drop ring between a heat-actuated block and a heat covering pre-variable rod is subjected to hot melting, so that the heat-actuated block is fixed and released, the heat-actuated block drives a magnetic-driven light-emitting sheet to move downwards and gather together, the original light-gathering strip emitting light at intervals is caused to have the phenomenon of gathering and emitting light at the bottom, and further, the overheat early warning effect on workers is realized.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A high-stability transformer with overheat early warning function comprises a transformer body, wherein the outer end of the transformer body is connected with a plurality of uniformly distributed radiating fins, the outward end part of the heat dissipation scale is provided with a light gathering strip, the outer end of the light gathering strip is fixedly connected with an adhesion assisting negative film, the adhesion assisting negative plate is adhered with the heat dissipation scales, the light gathering strip comprises a heat absorption layer and a light variation color development layer fixedly connected outside the heat absorption layer, the heat absorbing layer is mutually attached to the surface of the radiating scale, an inner lining shell is fixedly connected between the upper inner wall and the lower inner wall of the optically variable color rendering layer, the upper inner wall of the optically variable color rendering layer is fixedly connected with a heat covering pre-variable rod which is positioned in a space enclosed by the inner lining shell and the heat absorbing layer, the hot covering pre-changing rod is fixedly sleeved with a plurality of hot moving blocks which are uniformly distributed, magnetic blocks are fixedly embedded in the hot moving blocks, a plurality of magnetic dynamic pieces which are respectively matched with the thermal motion blocks are arranged in a space which is enclosed by the inner lining shell and the optical variable color rendering layer.
Through the arrangement of the light gathering strips, when the transformer is overheated, hot drop rings between the heat actuated blocks and the heat covering pre-changing rods are subjected to hot melting, so that the heat actuated blocks are fixedly removed, the heat actuated blocks drive the magnetic driven light sheets to move downwards and gather together, and then the original light gathering strips emitting at intervals are subjected to the phenomenon of gathering and emitting light at the bottoms, so that the overheating early warning effect on workers is realized.
Furthermore, the heat absorption layer, the optically variable color development layer and the adhesion assisting negative film are all made of high-heat-conduction materials, and the hot moving block is made of high-temperature-resistant materials.
Furthermore, the optically variable color development layer and the lining shell are both of transparent structures, the inner surface and the outer surface of the lining shell are both subjected to polishing treatment, the outer surface of the heat covering pre-variable rod is arranged in a frosted mode, and the heat covering pre-variable rod is made of light-color magnetic or transparent magnetic materials.
Furthermore, a hot drop ring is connected between the inner wall of the hot moving block and the hot covering pre-changing rod, and the hot drop ring enables the position of the hot moving block to be fixed on the hot covering pre-changing rod.
Furthermore, the hot drop ring is made by doping dark hot melt powder, the dark hot melt powder is formed by uniformly mixing magnetic powder, toner and hot melt material according to the volume ratio of 1:2-5:5-10, and the hot melt temperature of the hot melt material is 60-85 ℃.
Furthermore, the magnetic-driven polished section comprises an external polished section and an internal magnetic absorption sheet fixedly connected to one side, close to the lining shell, of the external polished section, a magnetic attraction force exists between the magnetic absorption block and the internal magnetic absorption sheet, and the internal magnetic absorption sheet is attached to the lining shell.
Furthermore, the bottom end electric connection in the heat absorbing layer has pressure sensor, the thermal cover is located directly over pressure sensor for the lower tip of pole in advance, and the thermal cover is in advance the pole and is not contact with pressure sensor.
Further, the distance between the lower end of the hot covering pre-changing rod and the pressure sensor is smaller than the longitudinal height of the hot moving block.
Furthermore, the outward end of the optically variable color development layer is connected with an outer convex strip, the outer convex strip comprises a plurality of positioning blocks fixedly connected with the optically variable color development layer, a plurality of magnetic convex strips connected between two adjacent positioning blocks and magnetic points connected to the middle of the magnetic convex strips, inner embedded grooves are formed in the ends, close to each other, of the positioning blocks, the end portions of the magnetic convex strips are fixed to the inner walls of the inner embedded grooves, the parts, located in the inner embedded grooves, of the magnetic convex strips are spiral, and the parts, located outside the positioning blocks, of the magnetic convex strips are straight.
Furthermore, the magnetic point is made of a magnetic material, and a magnetic repulsion force exists between the magnetic point and the magnetic attraction block.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, through the arrangement of the light gathering strips, when the transformer is overheated, the heat dropping rings between the heat actuated blocks and the heat covering pre-changing rods are subjected to hot melting, the heat actuated blocks are fixedly released, the heat actuated blocks drive the magnetic driven light sheets to move downwards and gather together, and then the original light gathering strips emitting at intervals are made to show the phenomenon that the bottoms gather and emit light, so that the overheating early warning effect on workers is achieved, in addition, along with the downward movement of the heat actuated blocks, the hot-melted heat dropping rings are gradually coated on the heat covering pre-changing rods, so that the phenomenon of color strips is shown above the light emitting parts, the overheating early warning effect on the workers is better due to double changes, the timely treatment on overheating is effectively guaranteed, the stability of the transformer is remarkably improved, and potential safety hazards possibly caused by overheating are greatly reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic top view of the heat dissipation fins of the present invention;
FIG. 3 is a schematic structural view of a cross-sectional portion of an upper end of a light gathering bar according to the present invention;
FIG. 4 is a schematic diagram of the construction of the thermal block portion of the present invention;
FIG. 5 is a schematic structural view of a cross-sectional portion of a lower end of a light gathering bar according to the present invention;
FIG. 6 is a schematic structural diagram of a portion of a light-gathering bar at normal temperature according to the present invention;
FIG. 7 is a schematic structural diagram of a portion of a light-gathering bar when the temperature is abnormally increased according to the present invention;
fig. 8 is a schematic view of a variation structure of the outer ribs in embodiment 2 of the present invention.
The reference numbers in the figures illustrate:
the transformer comprises a transformer body 1, radiating scales 2, a light gathering strip 3, an adhesion assisting negative film 4, a heat absorption layer 31, a light variation and color development layer 32, a lining shell 5, an external light display 61, an internal magnetic suction sheet 62, a thermal motion block 7, a thermal coverage pre-change rod 8, a magnetic suction block 9, a pressure sensor 10, a positioning block 101, a magnetic motion convex strip 102 and a magnetic point 103.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a transformer with high stability for early warning of overheating includes a transformer body 1, a plurality of heat dissipation scales 2 uniformly distributed are connected to an outer end of the transformer body 1, and a light gathering strip 3 is disposed on an outward end of each heat dissipation scale 2.
Referring to fig. 2, the outer end of the light gathering strip 3 is fixedly connected with an adhesion assisting film 4, the adhesion assisting film 4 is adhered to the heat dissipation scale 2, the light gathering strip 3 comprises a heat absorbing layer 31 and an optically variable color development layer 32 fixedly connected to the outside of the heat absorbing layer 31, the heat absorbing layer 31 is attached to the surface of the heat dissipation scale 2, and the heat absorbing layer 31, the optically variable color development layer 32 and the adhesion assisting film 4 are all made of high heat conduction materials, so that the arrangement of the light gathering strip 3 is not easy to influence the overflow of heat on the transformer body 1, the heat dissipation is not easy to slow, and the heat actuated block 7 is made of a high temperature resistant material, so that the heat actuated block is not easy to influence when being heated.
Referring to fig. 3-4, the inner shell 5 is fixedly connected between the upper inner wall and the lower inner wall of the optically variable color-developing layer 32, the optically variable color-developing layer 32 and the inner shell 5 are both transparent structures, so as to facilitate observation of the color and the position change of light in the light-focusing strip 3, the inner surface and the outer surface of the inner shell 5 are both polished, when the hot-drop ring is hot-melted due to overheating, the hot-moving block 7 is convenient to move down, so that the phenomenon of bottom focusing and light emitting is more obvious, and the early warning effect is better, the inner wall of the optically variable color-developing layer 32 is fixedly connected with the thermally covering pre-variable rod 8, the outer surface of the thermally covering pre-variable rod 8 is frosted, and the thermally covering pre-variable rod 8 is made of light-colored magnetic or transparent magnetic material, so that when the hot-melted hot-drop ring covers the surface of the thermally covering pre-variable rod 8, the color presented by the thermally covering pre-variable rod 8 can be obviously changed, so as to facilitate the presentation of the color strip phenomenon above, the thermally covering pre-variable rod 8 is located in the space surrounded by the inner shell 5 and the heat-absorbing layer 31, the thermal covering pre-changing rod 8 is fixedly sleeved with a plurality of thermal actuating blocks 7 which are uniformly distributed, magnetic attraction blocks 9 are fixedly embedded in the thermal actuating blocks 7, a space surrounded by the lining shell 5 and the optical variable color development layer 32 is internally provided with a plurality of magnetic attraction sheets which are respectively matched with the thermal actuating blocks 7, each magnetic attraction sheet comprises an outer attraction sheet 61 and an inner attraction sheet 62 fixedly connected to one side, close to the lining shell 5, of the outer attraction sheet 61, magnetic attraction force exists between the magnetic attraction blocks 9 and the inner attraction sheets 62, the magnetic attraction sheets can be attracted and move downwards together when the thermal actuating blocks 7 move downwards, the gathering and light-emitting phenomena are more obvious, the inner attraction sheets 62 are attached to the lining shell 5, and the outer attraction sheets 61 are made of light-storage self-emitting materials, so that the thermal attraction sheets can emit light in dark light or at night, and the overheating early warning effect is achieved.
The hot drop ring is connected between the inner wall of the hot motion block 7 and the hot covering pre-changing rod 8, the hot drop ring enables the position of the hot motion block 7 to be fixed on the hot covering pre-changing rod 8, the hot drop ring is made by doping dark hot melt powder, the dark hot melt powder is formed by uniformly mixing magnetic powder, toner and hot melt material according to the volume ratio of 1:2-5:5-10, the hot melt temperature of the hot melt material is 60-85 ℃, the hot drop ring is gradually hot melted at the temperature, the color and light change is generated, and therefore the fact that workers can be warned in advance timely when the transformer is overheated is effectively guaranteed.
Referring to fig. 5, a pressure sensor 10 is electrically connected to an inner bottom end of the heat absorption layer 31, the pressure sensor 10 is connected to a transformer management center or a mobile APP signal in the prior art, when an operator does not timely handle overheating, remote warning can be achieved, a lower end portion of the thermal covering pre-transformation rod 8 is located right above the pressure sensor 10, the thermal covering pre-transformation rod 8 is not in contact with the pressure sensor 10, a distance between the lower end portion of the thermal covering pre-transformation rod 8 and the pressure sensor 10 is smaller than a longitudinal height of the thermal moving block 7, the thermal moving block 7 can directly fall on the pressure sensor 10 when moving down, the pressure sensor 10 is subjected to a change of extrusion force generation data, and remote warning is achieved.
As shown in fig. 6-7, through the arrangement of the light-gathering strip 3, when the transformer is overheated, the heat-drip ring between the heat-actuated block 7 and the heat-covering pre-changing rod 8 is thermally melted, so that the heat-actuated block 7 is fixed and removed, the heat-actuated block 7 drives the magnetic-actuated sheets to move downwards and gather together, and further the original light-gathering strip 3 emitting light at intervals presents a phenomenon of gathering and emitting light at the bottom, so that an overheating early warning effect on workers is realized, and in addition, as the heat-actuated block 7 moves downwards, the hot-melted heat-drip ring is gradually coated on the heat-covering pre-changing rod 8, so that a phenomenon of color stripes is presented above the light-emitting part, double changes enable an overheating early warning effect on the workers to be better, timely treatment on overheating is effectively ensured, the stability of the transformer is remarkably improved, and potential safety hazards possibly caused by overheating are greatly reduced.
Example 2:
in this embodiment, on the basis of embodiment 1, the following is also set:
referring to fig. 8, the outward end of the optically variable color layer 32 is connected with an outer protrusion strip, the outer protrusion strip includes a plurality of positioning blocks 101 fixedly connected with the optically variable color layer 32, a plurality of magnetic protrusion strips 102 connected between two adjacent positioning blocks 101, and a magnetic point 103 connected to the middle of the magnetic protrusion strips 102, one end of each of the positioning blocks 101 close to each other is provided with an inner caulking groove, the end of each of the magnetic protrusion strips 102 is fixed to the inner wall of the inner caulking groove, the part of each of the magnetic protrusion strips 102 located in the inner caulking groove is spiral, the part of each of the magnetic protrusion strips 102 located outside the positioning blocks 101 is flat, the magnetic point 103 is made of a magnetic material, a magnetic repulsion force exists between the magnetic point 103 and the magnetic block 9, and the magnetic protrusion strips 102 are made of a material similar to aluminum wires, so that the magnetic protrusion strips can be shaped after being deformed by a force, thereby maintaining the outer protrusion shape and stabilizing the early warning effect.
When the thermal block 7 moves downwards and passes through the magnetic point 103, the magnetic point 103 drives the magnetic convex strip 102 to extend outwards under the action of the repulsive force, and the straight shape is changed into the outward convex shape, so that the early warning effect is further improved.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (9)
1. The utility model provides an overheated early warning's high stability transformer, includes transformer body (1), transformer body (1) outer end is connected with a plurality of evenly distributed's heat dissipation scale (2), its characterized in that: the light gathering strip (3) is arranged at the outward-facing end part of each radiating scale (2), the outer end of each light gathering strip (3) is fixedly connected with an adhesion assisting film (4), the adhesion assisting film (4) is adhered to the corresponding radiating scale (2), each light gathering strip (3) comprises a heat absorbing layer (31) and a light variation color development layer (32) fixedly connected to the outer side of the heat absorbing layer (31), the surfaces of the heat absorbing layer (31) and the corresponding radiating scale (2) are mutually attached, an inner lining shell (5) is fixedly connected between the upper inner wall and the lower inner wall of the light variation color development layer (32), a heat covering pre-variable rod (8) is fixedly connected to the upper inner wall of the light variation color development layer (32), the heat covering pre-variable rod (8) is located in a space magnetically enclosed by the inner lining shell (5) and the heat absorbing layer (31), a plurality of heat movable blocks (7) uniformly distributed are fixedly sleeved on the heat covering pre-variable rod (8), and heat movable blocks (9) are fixedly fixed in the heat movable blocks (7), a plurality of magnetic dynamic pieces which are respectively matched with the thermal dynamic block (7) are arranged in a space which is enclosed by the lining shell (5) and the optical variable color layer (32), a thermal drop ring is connected between the inner wall of the thermal dynamic block (7) and the thermal covering pre-variable rod (8), and the thermal drop ring enables the position of the thermal dynamic block (7) to be fixed on the thermal covering pre-variable rod (8).
2. The transformer of claim 1, wherein the transformer comprises: the heat absorption layer (31), the optically variable color development layer (32) and the adhesion assisting negative film (4) are all made of high-heat-conduction materials, and the hot moving block (7) is made of high-temperature-resistant materials.
3. The transformer of claim 1, wherein the transformer comprises: the photochromic color development layer (32) and the lining shell (5) are both of a transparent structure, the inner surface and the outer surface of the lining shell (5) are both polished, the outer surface of the heat covering pre-variable rod (8) is frosted, and the heat covering pre-variable rod (8) is made of light-colored magnetic or transparent magnetic materials.
4. The transformer of claim 1, wherein the transformer comprises: the hot drop ring is made by doping dark hot melt powder, the dark hot melt powder is formed by uniformly mixing magnetic powder, toner and hot melt material according to the volume ratio of 1:2-5:5-10, and the hot melt temperature of the hot melt material is 60-85 ℃.
5. The transformer of claim 1, wherein the transformer comprises: the magnetic light sheet comprises an outer light sheet (61) and an inner magnetic sheet (62) fixedly connected to one side, close to the inner lining shell (5), of the outer light sheet (61), a magnetic attraction force exists between the magnetic block (9) and the inner magnetic sheet (62), and the inner magnetic sheet (62) is attached to the inner lining shell (5).
6. The transformer of claim 1, wherein the transformer comprises: the inner bottom end of the heat absorption layer (31) is electrically connected with a pressure sensor (10), the lower end part of the heat covering pre-changing rod (8) is located right above the pressure sensor (10), and the heat covering pre-changing rod (8) is not in contact with the pressure sensor (10).
7. The transformer of claim 6, wherein the transformer comprises: the distance between the lower end part of the thermal covering pre-changing rod (8) and the pressure sensor (10) is smaller than the longitudinal height of the thermal moving block (7).
8. The transformer of claim 1, wherein the transformer comprises: the end part, facing outwards, of the light variable color development layer (32) is connected with an outer convex strip, the outer convex strip comprises a plurality of positioning blocks (101) fixedly connected with the light variable color development layer (32), a plurality of magnetic convex strips (102) connected between every two adjacent positioning blocks (101) and magnetic points (103) connected to the middle parts of the magnetic convex strips (102), inner embedded grooves are formed in the ends, close to each other, of the positioning blocks (101), the end parts of the magnetic convex strips (102) are fixed to the inner walls of the inner embedded grooves, the parts, located in the inner embedded grooves, of the magnetic convex strips (102) are spiral, and the parts, located outside the positioning blocks (101), of the magnetic convex strips (102) are flat and straight.
9. The transformer of claim 8, wherein the transformer comprises: the magnetic point (103) is made of magnetic materials, and magnetic repulsion exists between the magnetic point (103) and the magnetic attraction block (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111253206.1A CN113690029B (en) | 2021-10-27 | 2021-10-27 | High-stability transformer with overheating early warning function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111253206.1A CN113690029B (en) | 2021-10-27 | 2021-10-27 | High-stability transformer with overheating early warning function |
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| CN113690029A true CN113690029A (en) | 2021-11-23 |
| CN113690029B CN113690029B (en) | 2021-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114142686A (en) * | 2022-02-07 | 2022-03-04 | 江苏久泰智能科技有限公司 | Dynamic overheating early warning motor |
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| JP2007194356A (en) * | 2006-01-18 | 2007-08-02 | Lecip Corp | Discharge tube lighting device and transformer core |
| JP2012074639A (en) * | 2010-09-30 | 2012-04-12 | Daihen Corp | Method of varying load capacity of transformer |
| CN210378694U (en) * | 2019-05-30 | 2020-04-21 | 韶关市普慧节能技术服务有限公司 | Energy-saving transformer |
| CN213877725U (en) * | 2020-11-09 | 2021-08-03 | 江苏国腾变压器有限公司 | Waterproof structure of dry-type transformer |
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2021
- 2021-10-27 CN CN202111253206.1A patent/CN113690029B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007194356A (en) * | 2006-01-18 | 2007-08-02 | Lecip Corp | Discharge tube lighting device and transformer core |
| JP2012074639A (en) * | 2010-09-30 | 2012-04-12 | Daihen Corp | Method of varying load capacity of transformer |
| CN210378694U (en) * | 2019-05-30 | 2020-04-21 | 韶关市普慧节能技术服务有限公司 | Energy-saving transformer |
| CN213877725U (en) * | 2020-11-09 | 2021-08-03 | 江苏国腾变压器有限公司 | Waterproof structure of dry-type transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114142686A (en) * | 2022-02-07 | 2022-03-04 | 江苏久泰智能科技有限公司 | Dynamic overheating early warning motor |
| CN114142686B (en) * | 2022-02-07 | 2022-04-12 | 江苏久泰智能科技有限公司 | Dynamic overheating early warning motor |
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| CN113690029B (en) | 2021-12-28 |
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