CN216212667U - Three-phase isolation transformer - Google Patents
Three-phase isolation transformer Download PDFInfo
- Publication number
- CN216212667U CN216212667U CN202122366901.0U CN202122366901U CN216212667U CN 216212667 U CN216212667 U CN 216212667U CN 202122366901 U CN202122366901 U CN 202122366901U CN 216212667 U CN216212667 U CN 216212667U
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- Prior art keywords
- box body
- protective box
- track
- concave
- elastic baffle
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- 238000002955 isolation Methods 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 42
- 238000013016 damping Methods 0.000 claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000017525 heat dissipation Effects 0.000 claims abstract description 12
- 238000005260 corrosion Methods 0.000 claims abstract description 11
- 229920000742 Cotton Polymers 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model provides a three-phase isolation transformer, which belongs to the technical field of transformers and comprises the following components: a protective box body and an iron core winding; the iron core winding is fixedly arranged inside the protective box body through a first slide rail and a second slide rail; the protective box body comprises an electromagnetic shielding layer and an anti-corrosion layer; the anti-corrosion layer is arranged on the outer side of the electromagnetic shielding layer; the side wall of the protective box body is provided with heat dissipation holes; the inner side wall of the protective box body is pasted with a sound-absorbing cotton paste; a heat radiation fan is arranged on the box body door; and the bottom of the protective box body is provided with a damping base. The utility model has simple structure, good electromagnetic shielding effect, noise reduction and shock absorption functions, can avoid the influence of external electromagnetism on the transformer, and is convenient for the installation and the disassembly of the iron core winding.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a three-phase isolation transformer.
Background
The isolation transformer is a transformer with an input winding and an output winding electrically isolated, the isolation transformer is used for avoiding touching an electrified body accidentally, and the isolation of the transformer is used for isolating respective currents of the primary winding coil and the secondary winding coil. In the early days, the power supply is used in the electric power industry in European countries and is widely used for control power supplies, safety lighting and indicator lamps of general circuits in electronic industries or industrial and mining enterprises, machine tools and mechanical equipment. The isolating transformer belongs to a safety power supply, is generally used for machine maintenance and repair, and plays roles of protection, lightning protection and filtering. The principle of the isolation transformer is the same as that of the general transformer. All by using the principle of electromagnetic induction. Isolation transformers are generally referred to as 1: 1 transformer. Although the secondary is not connected with the ground, any line of the secondary is still in phase difference with the ground in potential difference and degree, and danger exists. The power supply for the control transformer and the tube device is also an isolation transformer. Power supplies such as tube loudspeakers, tube radios and oscilloscopes, and lathe control transformers are isolation transformers. For example, for the safe maintenance of color TV, the general use of 1: 1, an isolation transformer. It is also used in air conditioners. The isolation transformer can receive external electromagnetic interference in the use, influences the life of transformer, can cause danger even, needs to install electromagnetic shield protector additional for the transformer. However, the existing electromagnetic shielding protection device has the disadvantages of complex structure, high cost and low applicability. And meanwhile, the problems of inconvenient installation of the iron core winding, poor heat dissipation and the like are also solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a three-phase isolation transformer.
In order to solve the technical problem, the utility model aims to realize that:
a three-phase isolation transformer comprising: a protective box body and an iron core winding;
a box body door is hinged to one side wall of the protective box body; a first slide rail and a second slide rail which correspond to each other are arranged at the bottom of the top plate and the top of the bottom plate of the protective box body; the first slide rail and the second slide rail have the same structure and respectively comprise a concave track, a rear elastic baffle and a front elastic baffle; the number of the concave tracks is two, and the concave tracks are parallel to each other and are perpendicular to the plane where the box body door is located; two ends of the rear elastic baffle are respectively fixedly connected with two ends of the two concave-shaped tracks; one end of the front elastic baffle is hinged with one track end part, and the other end of the front elastic baffle is detachably and fixedly connected with the other track end part; the front elastic baffle is arranged at the end part of the track close to the box body door;
the iron core winding is provided with a sliding block corresponding to the track;
the protective box body comprises an electromagnetic shielding layer and an anti-corrosion layer; the anti-corrosion layer is arranged on the outer side of the electromagnetic shielding layer;
the side wall of the protective box body is provided with heat dissipation holes; the inner side wall of the protective box body is pasted with a sound-absorbing cotton paste; a heat radiation fan is arranged on the box body door;
the bottom of the protective box body is provided with a damping base; the damping base comprises a damping rubber pad, a damping spring and a bottom plate; the damping spring is arranged between the protective box body and the bottom plate, and is fixedly connected with the bottom of the protective box body and the bottom plate through the damping rubber pad.
On the basis of the scheme, as a preferable scheme of the scheme, a buckle is arranged at the end part of the front elastic baffle; the end part of the concave track is provided with a clamping groove matched with the buckle; the clamping groove is provided with a push type switch.
On the basis of the scheme, as a preferable scheme of the scheme, the concave track is internally provided with an arc-shaped bulge; the number of the arc-shaped protrusions is three, the arc-shaped protrusions are respectively arranged on three inner side surfaces of the concave-shaped track, and one end of the concave-shaped track extends to the other end of the concave-shaped track.
On the basis of the above scheme and as a preferable scheme of the above scheme, the heat radiation fan is a silent fan.
In addition to and as a preferred aspect of the above aspect, a temperature sensor is provided in the protective box body.
On the basis of the scheme, as a preferable scheme of the scheme, a handle is arranged on the outer side surface of the protective box body.
On the basis of the above scheme and as a preferable scheme of the above scheme, the protective box body is provided with a lightning arrester.
In addition to the above, and as a preferable mode of the above, a moisture absorber is provided in the protective casing.
The utility model has the beneficial effects that: the protective box body comprising the electromagnetic shielding layer is arranged outside the iron core winding, so that the influence of external electromagnetism on the transformer can be prevented while the iron core winding is protected, and the safety of the transformer is improved; the cooling fan is matched with the cooling holes to quickly cool the transformer, so that the influence of overhigh temperature on the transformer is avoided. The sound-absorbing cotton paste is matched with the mute fan, so that the working sound of the transformer is low, and no noise pollution is caused. The vibration damping base can absorb the vibration of the transformer during working, reduce vibration damage and prolong the service life of the transformer.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic front view of a portion of the present invention.
Fig. 3 is a schematic view of the slide rail structure of the present invention.
FIG. 4 is a schematic structural diagram of the anti-slip case body plate of the present invention.
In the figure: 1. a protective box body; 2. an iron core winding; 3. a box door; 4. a first slide rail; 5. a second slide rail; 6. a track in a shape of Chinese character 'ao'; 7. a rear elastic baffle plate; 8. a front elastic baffle; 9. a slider; 10. an electromagnetic shielding layer; 11. an anti-corrosion layer; 12. heat dissipation holes; 13. a heat radiation fan; 14. sound-absorbing cotton paste; 15. a damping mount; 16. a shock-absorbing rubber pad; 17. a damping spring; 18. a base plate; 19. buckling; 20. a card slot; 21. a push switch; 22. a circular arc-shaped bulge; 23. a handle; 24. a lightning arrester; 25. a moisture absorber.
Detailed Description
The utility model is further described with reference to the following figures and specific examples.
As shown in fig. 1 and 2, a three-phase isolation transformer includes: the protection box body 1 and the iron core winding 2 are arranged in the protection box body 1;
as shown in fig. 4, the protective casing 1 includes an electromagnetic shielding layer 10 and an anti-corrosion layer 11; the corrosion protection layer 11 is disposed outside the electromagnetic shielding layer 10. Wherein, the electromagnetic shielding layer 10 is made of iron-nickel alloy material, and the anti-corrosion layer 11 is made of epoxy resin.
A box body door 3 is hinged to one side wall of the protection box body 1. The box door 3 is the same as the protection box body 1 in material, and a rubber ring is arranged between the box door and the protection box body, so that the sealing performance between the box door and the protection box body can be kept, and dust and the like can be prevented from entering the protection box body 1.
A first slide rail 4 and a second slide rail 5 which correspond to each other are arranged at the bottom of the top plate and the top of the bottom plate of the protective box body 1; the first slide rail 4 and the second slide rail 5 have the same structure and respectively comprise a concave track 6, a rear elastic baffle 7 and a front elastic baffle 8, as shown in fig. 3; the number of the concave tracks 6 is two, and the concave tracks are parallel to each other and are perpendicular to the plane where the box body door 3 is located; two ends of the rear elastic baffle 7 are respectively fixedly connected with two ends of the two concave-shaped tracks 6; one end of the front elastic baffle 8 is hinged with the end part of one track 6, and the other end is detachably and fixedly connected with the end part of the other track 6; the front elastic baffle 8 is arranged at the end part of the track 6 close to the box body door 3. Further, an arc-shaped bulge 22 is arranged in the concave track 6; the number of the circular arc-shaped protrusions 22 is three, the circular arc-shaped protrusions are respectively arranged on three inner side surfaces of the concave-shaped track 6, and extend from one end to the other end of the concave-shaped track 6. The circular arc-shaped protrusions 22 are arranged on three surfaces of the concave portion of the concave track 6 and are integrally formed with the concave track 6, so that a good positioning effect can be achieved, and meanwhile, the slide rail and the slide block 9 can be connected more tightly.
And the iron core winding 2 is provided with a slide block 9 corresponding to the track 6. The cross-sectional shape of the slider 9 corresponds to the cross-sectional shape of the concave portion of the inverted V-shaped rail 6, and the length of the slider 9 is equal to the length of the first slide rail 4 or the second slide rail 5. When installing iron core winding 2, earlier with preceding elastic baffle 8's tip and 6 tip separations of concave type track, open the track road junction and make iron core winding 2 can get into the slide rail, with the concave type track 6 that the slider 9 alignment on 2 four angles of iron core winding corresponds, then promote in iron core winding 2 slides in protection box 1, then close preceding elastic baffle 8 and make iron core winding 2 fixed with the slide rail. Wherein, preceding elastic baffle 8 and back elastic baffle 7 are extended to the slide rail in by part elasticity portion for preceding and back elastic baffle can extrude slider 9 in order to prevent that iron core winding 2 from rocking. The front and rear elastic baffles comprise a fixed supporting part and an elastic part, the fixed supporting part is made of metal materials with higher hardness, and the elastic part is made of elastic materials such as rubber. The top of the rear elastic baffle 7 is fixedly connected with the top of the protective box body 1. Preceding elastic baffle 8 and 6 tip of concave type track can dismantle coupling mechanism including setting up buckle 19 in the front on elastic baffle 8, set up at 6 tip of concave type track with buckle 19 matched with draw-in groove 20, buckle 19 can be fixed by its inside fastener joint when getting into draw-in groove 20, and the fastener presses the switching through push type switch 21, and when pressing push type switch 21, the fastener loosens buckle 18.
The side wall of the protection box body 1 is provided with heat dissipation holes 12. The heat dissipation holes 12 are arranged on three sides of the protection box body 1, which are not provided with the box body door 3, and dust covers are arranged outside the protection box body.
The inner side wall of the protection box body 1 is pasted with a sound-absorbing cotton paste 14. The sound-absorbing cotton sticker 14 is attached to the inner portions of two side faces adjacent to the box body door 3, and can absorb noise generated by operation of the transformer. Further, in the above-mentioned case,
a heat radiation fan 13 is arranged on the box body door 3; the heat dissipation fan 13 is a silent fan. A dust screen is provided outside the heat radiation fan 13. The heat dissipation fan 13 is matched with the heat dissipation hole 12 to quickly dissipate heat generated by the gearbox. A temperature sensor is arranged in the protective box body 1. The temperature sensor can detect the temperature inside the protective box body 1 and feed back the temperature to the control device of the heat dissipation fan 13, and the control device adjusts the wind power of the heat dissipation fan 13 according to the fed-back temperature.
The bottom of the protective box body 1 is provided with a damping base 15; the damping base 15 comprises a damping rubber pad 16, a damping spring 17 and a bottom plate 18; the damping spring 17 is arranged between the protection box body 1 and the bottom plate 18 and is fixedly connected with the bottom of the protection box body 1 and the bottom plate 18 through the damping rubber pad 16. The area of the bottom plate 18 is larger than the bottom area of the protective box body 1 so as to be convenient to be connected with fixed structures such as the ground. The number of the damping springs 17 is a plurality, and the damping springs are uniformly distributed between the protection box body 1 and the bottom plate 18.
Further, a handle 23 is arranged on the outer side surface of the protection box body 1. The handle 23 is arranged on the outside of both sides adjacent to the box door 3.
Further, a lightning arrester 24 is arranged on the protection box body 1. The lightning arrester 24 is arranged on the top of the protective box 1, and can prevent the transformer from being damaged by lightning.
Further, a moisture absorber 25 is arranged in the protection box body 1. The moisture absorber 25 is arranged at the bottom of the top plate of the protection box body 1, so that the humidity in the protection box body 1 can be reduced, the adverse effect on the transformer caused by the overlarge humidity is avoided, and the corrosion speed of the internal components of the protection box body 1 can be reduced.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. A three-phase isolation transformer, comprising: the protective box body (1) and the iron core winding (2);
a box body door (3) is hinged to one side wall of the protective box body (1); a first sliding rail (4) and a second sliding rail (5) which correspond to each other are arranged at the bottom of a top plate and the top of a bottom plate of the protective box body (1); the first sliding rail (4) and the second sliding rail (5) are identical in structure and respectively comprise a concave rail (6), a rear elastic baffle (7) and a front elastic baffle (8); the number of the concave tracks (6) is two, and the concave tracks are parallel to each other and are perpendicular to the plane where the box body door (3) is located; two ends of the rear elastic baffle (7) are respectively fixedly connected with two ends of the two concave-shaped tracks (6); one end of the front elastic baffle (8) is hinged with the end part of one track (6), and the other end of the front elastic baffle is detachably and fixedly connected with the end part of the other track (6); the front elastic baffle (8) is arranged at the end part of the track (6) close to the box body door (3);
the iron core winding (2) is provided with a sliding block (9) corresponding to the track (6);
the protective box body (1) comprises an electromagnetic shielding layer (10) and an anti-corrosion layer (11); the anti-corrosion layer (11) is arranged outside the electromagnetic shielding layer (10);
the side wall of the protective box body (1) is provided with heat dissipation holes (12); the inner side wall of the protective box body (1) is pasted with a sound-absorbing cotton paste (14); a heat radiation fan (13) is arranged on the box body door (3);
a damping base (15) is arranged at the bottom of the protective box body (1); the damping base (15) comprises a damping rubber pad (16), a damping spring (17) and a bottom plate (18); the damping spring (17) is arranged between the protective box body (1) and the bottom plate (18), and is fixedly connected with the bottom of the protective box body (1) and the bottom plate (18) through the damping rubber pad (16).
2. A three-phase isolating transformer according to claim 1, characterized in that the front elastic baffle (8) is provided with a snap (19) at its end; a clamping groove (20) matched with the buckle (19) is formed in the end part of the concave track (6); the clamping groove (20) is provided with a push switch (21).
3. A three-phase isolating transformer according to claim 1, characterized in that circular arc shaped protrusions (22) are provided in the zigzag track (6); the number of the circular arc-shaped protrusions (22) is three, the circular arc-shaped protrusions are respectively arranged on three inner side surfaces of the concave-shaped track (6), and extend from one end to the other end of the concave-shaped track (6).
4. A three-phase isolating transformer according to claim 1, characterised in that the heat-dissipating fan (13) is a silent fan.
5. A three-phase isolating transformer according to claim 1, characterised in that a temperature sensor is arranged in the protective tank (1).
6. The three-phase isolation transformer of claim 1, wherein a handle (23) is arranged on the outer side of the protective box body (1).
7. A three-phase isolating transformer according to claim 1, characterised in that a lightning arrester (24) is arranged on the protective tank (1).
8. A three-phase isolating transformer according to claim 1, characterised in that a moisture absorber (25) is provided in the protective casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122366901.0U CN216212667U (en) | 2021-09-26 | 2021-09-26 | Three-phase isolation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122366901.0U CN216212667U (en) | 2021-09-26 | 2021-09-26 | Three-phase isolation transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216212667U true CN216212667U (en) | 2022-04-05 |
Family
ID=80928177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122366901.0U Expired - Fee Related CN216212667U (en) | 2021-09-26 | 2021-09-26 | Three-phase isolation transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216212667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117219407A (en) * | 2023-10-31 | 2023-12-12 | 深圳市百恒电气有限公司 | Dry-type transformer cooling device and cooling method thereof |
-
2021
- 2021-09-26 CN CN202122366901.0U patent/CN216212667U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117219407A (en) * | 2023-10-31 | 2023-12-12 | 深圳市百恒电气有限公司 | Dry-type transformer cooling device and cooling method thereof |
| CN117219407B (en) * | 2023-10-31 | 2024-05-31 | 深圳市百恒电气有限公司 | Dry-type transformer cooling device and cooling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220405 |
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| CF01 | Termination of patent right due to non-payment of annual fee |