CN210865855U - Full-protection power transformer - Google Patents
Full-protection power transformer Download PDFInfo
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- CN210865855U CN210865855U CN201921329902.4U CN201921329902U CN210865855U CN 210865855 U CN210865855 U CN 210865855U CN 201921329902 U CN201921329902 U CN 201921329902U CN 210865855 U CN210865855 U CN 210865855U
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Abstract
The utility model provides a full protection power transformer, which comprises a box body, an iron core, a plurality of high-voltage terminals, low-voltage terminals and high-voltage cables, wherein the iron core is fixedly arranged in the box body, and a primary side coil and a secondary side coil are wound on the iron core; the high-voltage terminal and the low-voltage terminal are fixedly arranged on the box body; one end of the high-voltage terminal is fixedly connected with the primary side coil of the iron core, and the other end of the high-voltage terminal extends outwards; the low-voltage terminal is fixedly connected with a secondary side coil on the iron core; the high-voltage cable connection box further comprises a plurality of plug heads, the plug heads are fixedly connected with one ends of the high-voltage terminals far away from the box body, and the plug heads are fixedly connected with the high-voltage cable. The utility model adopts the plug head with a complete sealing structure to connect the cables, the high-voltage terminal part of the transformer is sealed, the high-voltage terminal has no exposed conductive part, the protection capability is greatly improved, and potential safety hazards are eliminated; the plug head body can respectively play a role in connecting and fixing the first connecting piece and the high-voltage terminal.
Description
Technical Field
The utility model relates to a power transformer field especially relates to a full protection power transformer.
Background
A power transformer is a stationary electrical apparatus for converting ac voltage or ac current and transmitting ac power, which is a main apparatus of a power plant and a substation. The electromagnetic induction type transformer substation realizes electric energy transfer through an electromagnetic induction principle, can realize boosting transmission and can also realize voltage reduction power supply in a substation area. The main structure of the transformer comprises an iron core, a primary side coil and a secondary side coil which are wound on the iron core, a high-voltage terminal, a low-voltage terminal and the like.
The power transformer is usually used in combination with a distribution transformer integrated cabinet, which is mostly installed at a roadside or other places where traffic and people are dense. Most of the existing power transformers are directly connected with high-voltage ends of the existing power transformers through cables, the high-voltage terminal parts of the existing power transformers are exposed in the air, the possibility that foreign matters contact the high-voltage terminals or people get an electric shock is high, and equipment short circuit and personal safety accident potential hazards exist.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can carry out the full protection power transformer who reliably protects to power transformer high-voltage terminal.
The technical scheme of the utility model is realized like this: a full-protection power transformer comprises a box body (1), an iron core (2), a plurality of high-voltage terminals (3), low-voltage terminals (4) and a high-voltage cable (5), wherein the iron core (2) is fixedly arranged in the box body (1), and a primary side coil and a secondary side coil are wound on the iron core (2); the high-voltage terminal (3) and the low-voltage terminal (4) are both fixedly arranged on the box body (1); one end of the high-voltage terminal (3) is fixedly connected with the primary side coil of the iron core (2), and the other end of the high-voltage terminal (3) is far away from the box body (1) and extends outwards; the low-voltage terminal (4) is fixedly connected with a secondary side coil on the iron core (2); the high-voltage cable connection box is characterized by further comprising a plurality of plug heads (6), wherein the plug heads (6) are fixedly connected with one ends, far away from the box body (1), of the high-voltage terminals (3), and the plug heads (6) are fixedly connected with the high-voltage cable (5).
On the basis of the technical scheme, preferably, the plug head (6) comprises a plug head body (61) and a first connecting piece (62), a hollow first inner cavity (63) and a hollow second inner cavity (64) are arranged in the plug head body (61), the first inner cavity (63) is communicated with the second inner cavity (64), and the first connecting piece (62) is fixedly arranged in the first inner cavity (63); the second inner cavity (64) is arranged at one end of the plug head body (61) close to the box body (1); one end of the high-voltage terminal (3) far away from the box body (1) extends into the second inner cavity (64), the high-voltage terminal (3) is fixedly connected with the first connecting piece (62) and the plug head body (61) respectively, and the high-voltage cable (5) is fixedly connected with the first connecting piece (62); the high-voltage cable (5), the first connecting piece (62) and the high-voltage terminal (3) are electrically connected in sequence.
Further preferably, the plug head (6) further comprises a second connecting piece (65), one end of the second connecting piece (65) is fixedly connected with the first connecting piece (62), and the other end of the second connecting piece (65) is fixedly connected with the high-voltage terminal (3).
More preferably, the high-voltage terminal (3) comprises a high-voltage sleeve (31) and a conducting part (32), one end of the conducting part (32) is fixedly connected with the primary side coil, and the other end of the conducting part (32) is fixedly connected with a first connecting piece (62); the high-voltage bushing (31) is sleeved on the outer surface of the conductive part (32), and the surface of the high-voltage bushing (31) is propped against the plug head body (61); the conductive part (32) extends into the second inner cavity (64) and is tightly connected with the second connecting piece (65).
Still preferably, a first partition plate (66) is further arranged in the plug head body (61), the first partition plate (66) is fixedly arranged in the plug head body (61), and the surface of the first partition plate (66) is respectively abutted against the surface of the first connecting piece (62) and one end, far away from the box body (1), of the high-voltage terminal (3); the first partition plate (66) is provided with a first through hole (67), the second connecting piece (65) is rotatably connected with the first through hole (67), and the second connecting piece (65) penetrates through the first through hole (67) and is fixedly connected with the high-voltage terminal (3).
Still further preferably, the surface of the high-voltage bushing (31) is provided with a plurality of first annular grooves (33), the plug head body (61) where the second inner cavity (64) is located is provided with a through second through hole (610), and the second through hole (610) is communicated with the first annular grooves (33); a pressure lever (611) is arranged in the second through hole (610), and the pressure lever (611) is in threaded connection with the second through hole (610); the pressure rod (611) penetrates through the second through hole (610) and abuts against the first annular groove (33).
Still further preferably, a first counter bore (30) is formed in the conducting portion (32), an external thread is formed in the second connecting piece (65), an internal thread is correspondingly formed in the first counter bore (30), and the second connecting piece (65) extends into the first counter bore (30) and is in threaded connection with the high-voltage terminal (3).
Further preferably, the first connecting piece (62) is plate-shaped, a plurality of protrusions (621) are arranged on the surface of the first connecting piece (62), and the protrusions (621) diffract the surface of the first connecting piece (62) to extend outwards; the inner surface of the plug head body (61) is correspondingly provided with a groove (68), and the shape of the groove (68) is matched with that of the protrusion (621).
Further preferably, the plug head (6) further comprises a third inner cavity (71) and a second partition plate (72), and the third inner cavity is arranged at one end, far away from the box body (1), of the plug head body (61); a second partition plate (72) is arranged in the third inner cavity (71), and the second partition plate (72) is propped against the surface of the first connecting piece (62) far away from the box body (1); the second clapboard (72) is detachably connected with the plug head body (61).
On the basis of the technical scheme, preferably, the high-voltage terminal (3) and the low-voltage terminal (4) are fixedly arranged on different surfaces of the box body (1).
In addition to the above technical solutions, preferably, the high voltage terminal (3) and the low voltage terminal (4) are fixedly disposed on the same surface of the box body (1).
The utility model provides a pair of full protection power transformer for prior art, has following beneficial effect:
(1) the utility model adopts the plug head with a complete sealing structure to connect the cables, the high-voltage terminal part of the transformer is sealed, the high-voltage terminal and the high-voltage cable have no exposed conductive part, the sealing and shielding performance is good, and the potential safety hazard is eliminated;
(2) the plug head body can respectively play a role in connecting and fixing the first connecting piece and the high-voltage terminal in a closed manner;
(3) the second connecting piece has the effect of fastening and detachably connecting the first connecting piece and the high-voltage terminal;
(4) the first partition plate can limit the first connecting piece and can also play a role in supporting and fixing the second connecting piece so as to prevent the second connecting piece from deforming;
(5) the high-voltage terminal is provided with a high-voltage sleeve, so that the side surface of the high-voltage terminal can be further prevented from being exposed;
(6) the high-voltage terminal and the low-voltage terminal are arranged on different surfaces or the same surface of the box body, so that the wiring and layout requirements of different power distribution cabinets can be met, and the matching cost is reduced;
(7) the plug head can be further expanded and is externally connected with equipment such as a lightning arrester, and therefore the safety performance of the equipment is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a fully protective power transformer according to the present invention;
fig. 2 is a left side view of a full protection power transformer of the present invention;
fig. 3 is a front sectional view of the combined state of the plug head and the high-voltage terminal of the fully protective power transformer of the present invention;
fig. 4 is a front view of a half section of a plug head of a full protection power transformer of the present invention;
fig. 5 is a perspective view of a high voltage terminal of a full protection power transformer according to the present invention;
fig. 6 is a right side view of the plug body, the first connecting member and the second connecting member of the fully protective power transformer of the present invention;
fig. 7 is a left side view of a second structure of a full protection power transformer according to the present invention;
fig. 8 is a left side view of a third structure of a full protection power transformer according to the present invention;
fig. 9 is a left side view of a fourth structure of the fully protective power transformer of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the utility model provides a full protection power transformer, which comprises a box body 1, an iron core 2, a plurality of high voltage terminals 3, low voltage terminals 4, a high voltage cable 5 and a plurality of plug heads 6, wherein the iron core 2 is fixedly arranged in the box body 1, and a primary side coil and a secondary side coil are wound on the iron core 2; the high-voltage terminal 3 and the low-voltage terminal 4 are both fixedly arranged on the box body 1; one end of the high-voltage terminal 3 is fixedly connected with the primary side coil of the iron core 2, and the other end of the high-voltage terminal 3 is far away from the box body 1 and extends outwards; the low-voltage terminal 4 is fixedly connected with a secondary side coil on the iron core 2; the plug head 6 and one end of each high-voltage terminal 3 far away from the box body 1 are fixedly connected, and the plug head 6 is also fixedly connected with the high-voltage cable 5. The plug head 6 is made of an insulating material, and encloses the high-voltage terminal 3 and the high-voltage cable 5.
The high-voltage terminal 3 is surrounded by the plug head 6 extending out of the box body 1, so that the high-voltage terminal 3 is not directly exposed outside, the plug head 6 is also connected with the high-voltage cable 5, and indirect connection between the high-voltage cable 5 and the high-voltage terminal 3 can be realized. The plug head 6 can provide insulation protection to prevent foreign matters from contacting the terminal or electric shock accidents from happening.
As shown in fig. 2 and fig. 3, the plug 6 includes a plug body 61 and a first connecting member 62, the plug body 61 is provided with a first hollow cavity 63 and a second hollow cavity 64, the first hollow cavity 63 and the second hollow cavity 64 are communicated with each other, and the first connecting member 62 is fixedly disposed in the first hollow cavity 63; the second inner cavity 64 is arranged at one end of the plug head body 61 close to the box body 1; one end of the high-voltage terminal 3, which is far away from the box body 1, extends into the second inner cavity 64, the high-voltage terminal 3 is fixedly connected with the first connecting piece 62, and the high-voltage cable 5 is fixedly connected with the first connecting piece 62; the high voltage cable 5, the first connector 62 and the high voltage terminal 3 are electrically connected in sequence. As can be seen from the figure, the first inner cavity 63 and the second inner cavity 64 which are communicated with each other are provided inside the plug body 61, and the first connecting member 62 is provided inside the first inner cavity 63, so that the high voltage terminal 3 and the high voltage cable 5 are electrically connected by the first connecting member 62. The high-voltage cable 5, the first connecting piece 62 and the high-voltage terminal 3 are made of conductive materials.
As a further improvement of the present invention, the plug head 6 further includes a second connecting member 65, one end of the second connecting member 65 is fixedly connected to the first connecting member 62, and the other end of the second connecting member 65 is fixedly connected to the high voltage terminal 3. I.e. further electrically connected to the high voltage terminal 3 by means of the second connection 65. A first partition plate 66 is further arranged in the plug head body 61, the first partition plate 66 is fixedly arranged in the plug head body 61, and the surface of the first partition plate 66 is respectively abutted against the surface of the first connecting piece 62 and one end of the high-voltage terminal 3, which is far away from the box body 1; the first partition plate 66 is provided with a first through hole 67, the second connecting piece 65 is rotatably connected with the first through hole 67, and the second connecting piece 65 passes through the first through hole 67 and is tightly connected with the high-voltage terminal 3. The first partition 66 may support the second connector 65 and prevent the second connector 65 from being deformed and displaced.
Specifically, as shown in fig. 4 and fig. 5, a first counterbore 30 is provided on the high-voltage terminal 3, an external thread is provided on the second connecting member 65, an internal thread is correspondingly provided on the first counterbore 30, and the second connecting member 65 extends into the first counterbore 30 and is in threaded connection with the high-voltage terminal 3. In use, the second connector 65 is screwed into the first counterbore 30 to complete the fastening.
As shown in fig. 3 in conjunction with fig. 4 and 5, the high-voltage terminal 3 includes a high-voltage bushing 31 and a conductive portion 32, one end of the conductive portion 32 is fixedly connected to the primary coil, and the other end of the conductive portion 32 is fixedly connected to a first connector 62; the high-voltage bushing 31 is sleeved on the outer surface of the conductive part 32, and the surface of the high-voltage bushing 31 is abutted against the plug head body 61; the conductive portion 32 extends into the second interior cavity 64 and is securely connected to the second connector 65. The high voltage terminal 3 itself has an insulation protected high voltage bushing 31, which prevents a person from accidentally touching the conductive part of the high voltage terminal 3.
As shown in fig. 3, the surface of the high-pressure bushing 31 is provided with a plurality of first annular grooves 33, the plug body 61 where the second cavity 64 is located is provided with a second through hole 610 therethrough, and the second through hole 610 is communicated with the first annular grooves 33; a pressure lever 611 is arranged in the second through hole 610, and the pressure lever 611 is in threaded connection with the second through hole 610; the pressing rod 611 passes through the second through hole 610 and abuts against the first annular groove 33. As shown in the figure, depression bar 611 stretches into first ring channel 33 in, can play the stopping anticreep function, prevents that high-voltage terminal 3 from droing from plug head 6, further improves the utility model discloses a security and reliability.
As shown in fig. 6, the surface of the first connecting element 62 of the present invention is provided with a plurality of protrusions 621, the inner surface of the plug body 61 is correspondingly provided with a groove 68, and the shape of the groove 68 is identical to the shape of the protrusions 621. The first connecting member 62 is fixedly disposed in the first inner cavity 63, and the protrusion 621 may also prevent the first connecting member 62 from loosening. The protection capability of the high-voltage terminal 3 is improved.
As shown in fig. 4, the plug head 6 further includes a third inner cavity 71 and a second partition 72, the third inner cavity is disposed at one end of the plug head body 61 away from the box body 1; a second partition plate 72 is arranged in the third inner cavity 71, and the second partition plate 72 is abutted against the surface of the first connecting piece 62 away from the box body 1; the second partition 72 is detachably connected to the plug body 61. When the plug 6 needs to be further expanded, the second partition plate 72 can be detached, and other components can be inserted into the third inner cavity 71.
As shown in fig. 7 and 8, the high-voltage terminal 3 and the low-voltage terminal 4 are fixedly disposed on different surfaces of the case 1. As shown in fig. 9, the high-voltage terminal 3 and the low-voltage terminal 4 are fixedly provided on the same surface of the case 1. When the utility model discloses when using with other switch boards cooperations, different combination forms can be realized to the high voltage terminal 3 and the low voltage terminal 4 of different positions, can simplify and walk the line overall arrangement, save the consumption of switch board inner space and wire rod.
Additionally, the utility model discloses in, still be connected with the low pressure cable on the low pressure terminal 4, the connected mode of low pressure terminal 4 and low pressure cable can be the same with the mode that high-pressure cable 5 and high-pressure terminal 3 are connected, and low pressure terminal 4 and low voltage circuit also adopt plug head 6 to connect promptly, and its implementation is similar basically.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A full-protection power transformer comprises a box body (1), an iron core (2), a plurality of high-voltage terminals (3), low-voltage terminals (4) and a high-voltage cable (5), wherein the iron core (2) is fixedly arranged in the box body (1), and a primary side coil and a secondary side coil are wound on the iron core (2); the high-voltage terminal (3) and the low-voltage terminal (4) are both fixedly arranged on the box body (1); one end of the high-voltage terminal (3) is fixedly connected with the primary side coil of the iron core (2), and the other end of the high-voltage terminal (3) is far away from the box body (1) and extends outwards; the low-voltage terminal (4) is fixedly connected with a secondary side coil on the iron core (2); the method is characterized in that: the high-voltage cable connection box is characterized by further comprising a plurality of plug heads (6), wherein the plug heads (6) are fixedly connected with one ends, far away from the box body (1), of the high-voltage terminals (3), and the plug heads (6) are fixedly connected with the high-voltage cable (5).
2. A fully protected power transformer according to claim 1, characterised in that: the plug head (6) comprises a plug head body (61) and a first connecting piece (62), a first hollow inner cavity (63) and a second hollow inner cavity (64) are arranged in the plug head body (61), the first inner cavity (63) is communicated with the second hollow inner cavity (64), and the first connecting piece (62) is fixedly arranged in the first inner cavity (63); the second inner cavity (64) is arranged at one end of the plug head body (61) close to the box body (1); one end of the high-voltage terminal (3) far away from the box body (1) extends into the second inner cavity (64), the high-voltage terminal (3) is fixedly connected with the first connecting piece (62) and the plug head body (61) respectively, and the high-voltage cable (5) is fixedly connected with the first connecting piece (62); the high-voltage cable (5), the first connecting piece (62) and the high-voltage terminal (3) are electrically connected in sequence.
3. A fully protected power transformer according to claim 2, characterised in that: the plug head (6) further comprises a second connecting piece (65), one end of the second connecting piece (65) is fixedly connected with the first connecting piece (62), and the other end of the second connecting piece (65) is fixedly connected with the high-voltage terminal (3).
4. A fully protected power transformer according to claim 3, characterised in that: the high-voltage terminal (3) comprises a high-voltage sleeve (31) and a conductive part (32), one end of the conductive part (32) is fixedly connected with the primary side coil, and the other end of the conductive part (32) is fixedly connected with a first connecting piece (62); the high-voltage bushing (31) is sleeved on the outer surface of the conductive part (32), and the surface of the high-voltage bushing (31) is propped against the plug head body (61); the conductive part (32) extends into the second inner cavity (64) and is tightly connected with the second connecting piece (65).
5. A fully protected power transformer according to claim 4, characterised in that: a first partition plate (66) is further arranged in the plug head body (61), the first partition plate (66) is fixedly arranged in the plug head body (61), and the surface of the first partition plate (66) is respectively propped against the surface of the first connecting piece (62) and one end, far away from the box body (1), of the high-voltage terminal (3); the first partition plate (66) is provided with a first through hole (67), the second connecting piece (65) is rotatably connected with the first through hole (67), and the second connecting piece (65) penetrates through the first through hole (67) and is fixedly connected with the high-voltage terminal (3).
6. A fully protected power transformer according to claim 4, characterised in that: the surface of the high-pressure sleeve (31) is provided with a plurality of first annular grooves (33), a penetrating second through hole (610) is formed in the plug head body (61) where the second inner cavity (64) is located, and the second through hole (610) is communicated with the first annular grooves (33); a pressure lever (611) is arranged in the second through hole (610), and the pressure lever (611) is in threaded connection with the second through hole (610); the pressure rod (611) penetrates through the second through hole (610) and abuts against the first annular groove (33).
7. A fully protected power transformer according to claim 4, characterised in that: the conductive part (32) is provided with a first counter bore (30), the second connecting piece (65) is provided with an external thread, the first counter bore (30) is correspondingly provided with an internal thread, and the second connecting piece (65) extends into the first counter bore (30) and is in threaded connection with the high-voltage terminal (3).
8. A fully protected power transformer according to claim 2, characterised in that: the first connecting piece (62) is plate-shaped, a plurality of bulges (621) are arranged on the surface of the first connecting piece (62), and the bulges (621) diffract the surface of the first connecting piece (62) to extend outwards; the inner surface of the plug head body (61) is correspondingly provided with a groove (68), and the shape of the groove (68) is matched with that of the protrusion (621).
9. A fully protected power transformer according to claim 2, characterised in that: the plug head (6) further comprises a third inner cavity (71) and a second partition plate (72), and the third inner cavity is arranged at one end, far away from the box body (1), of the plug head body (61); a second partition plate (72) is arranged in the third inner cavity (71), and the second partition plate (72) is propped against the surface of the first connecting piece (62) far away from the box body (1); the second clapboard (72) is detachably connected with the plug head body (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921329902.4U CN210865855U (en) | 2019-08-16 | 2019-08-16 | Full-protection power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921329902.4U CN210865855U (en) | 2019-08-16 | 2019-08-16 | Full-protection power transformer |
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| Publication Number | Publication Date |
|---|---|
| CN210865855U true CN210865855U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921329902.4U Active CN210865855U (en) | 2019-08-16 | 2019-08-16 | Full-protection power transformer |
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| CN (1) | CN210865855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151245A (en) * | 2020-09-23 | 2020-12-29 | 常德立欣电子科技股份有限公司 | External high-frequency transformer anti-electric shock mechanism for household electrical appliance |
-
2019
- 2019-08-16 CN CN201921329902.4U patent/CN210865855U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151245A (en) * | 2020-09-23 | 2020-12-29 | 常德立欣电子科技股份有限公司 | External high-frequency transformer anti-electric shock mechanism for household electrical appliance |
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