KR101561584B1

KR101561584B1 - Transformer

Info

Publication number: KR101561584B1
Application number: KR1020150064495A
Authority: KR
Inventors: 김창배
Original assignee: (주)예인일렉컴
Priority date: 2015-05-08
Filing date: 2015-05-08
Publication date: 2015-10-20

Abstract

A transformer comprises: first to third clamps (20, 30, 40) which support multiple transformer bodies (10); a base member (60) on which the third clamp (40) is installed; first and second support members (80, 81), one end portion of which is fixed and installed in the base member (60) and the other end portion is coupled to one of both side ends of the first clamp (20); first and second horizontal buffer members (35) for supporting the first clamp (20) to be buffered; multiple pairs of third and fourth support members (82, 83), one end portion of which is fixed and installed in the base member (60) and the other end portion is coupled to either the front end or the rear end of the first clamp (20); first and second fixing devices (70) which are installed in the third and fourth support members (82, 83), respectively, to fix the transformer bodies (10); and multiple vertical buffer members (45) which are installed in the third clamp (40), respectively, and elastically support load of the transformer bodies (10) applied through the second clamp (30).

Description

Transformer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transformer, and more particularly, to a transformer improved in an earthquake-proof structure.

In recent years, a transformer tends to have a large capacity, and accordingly, there is also a demand for improvement of seismic resistance against earthquakes.

Generally, a transformer has a transformer main body having an upper core fixing clamp and a lower core fixing clamp, which are disposed at the upper and lower ends of the winding, with the upper yoke and the lower yoke disposed at the upper and lower ends of the iron core wound around the winding, Respectively.

Conventionally, it has been known that an earthquake-resistant structure of such a transformer is provided with a reinforcing member or a spring member on the transformer main body and connected to the tank. The application of the reinforcing member is described in Patent Document 1 below, and the use of a spring member is disclosed in Patent Document 2 below.

Japanese Patent Application Laid-Open No. 1994-061065 (Patent Document 1) discloses a transformer in which a main body of a transformer is accommodated together with a cooling medium in a tank, a longitudinal reinforcing member is provided on the main body, Are arranged in the longitudinal direction to extend to the opposite sides and the tank wall is fitted to both ends thereof or the upper end portion of the direct inclined member is provided and the lower end portion of the inclined member is fixed to the base member or the base portion.

The transformer disclosed in Japanese Patent Application Laid-Open No. 1991-129709 (Patent Document 2) includes a transformer main body composed of an iron core formed by laminating a plurality of iron core plates and a coil wound around respective corners of the iron core, And the transformer main body is enclosed by the case. The lower part of the case is fixed to the base, and the upper part of the case is connected to the transformer main body through the spring member.

The above Patent Documents 1 and 2 provide a reinforcing member or a spring member to improve the vibration resistance in the width direction (thickness direction) of the iron core to prevent collapse. However, when a large earthquake occurs, (I.e., displacement in the longitudinal direction of the transformer iron core) of the overlapping surfaces of the joint portions occurs. Such longitudinal displacement of the transformer core is liable to occur at the end legs at the junction of the end legs, the upper yoke and the lower yoke, and if the positional displacement of the overlapping surfaces occurs, the loss of the transformer increases and the efficiency is lowered .

Patent Document 1: Japanese Laid-Open Patent Application No. 1994-061065 (Published Date: 1994.03.04) Patent Document 2: Japanese Laid-Open Patent Application No. 1991-129709 (published on June 30, 1991)

SUMMARY OF THE INVENTION An object of the present invention is to provide a transformer having an excellent vibration damping structure capable of reliably preventing a loss of a loss and an efficiency from being lowered in a vertical direction (widthwise direction) and a horizontal direction have.

Another object of the present invention is to provide a transformer which can simplify the earthquake-resistant structure as much as possible and shorten construction time and cost.

A transformer according to an embodiment of the present invention includes a plurality of transformer main bodies arranged in a line and a transformer accommodating half accommodating the plurality of transformer main bodies 10, A first clamp and a second clamp for connecting and fastening the first and second clamps; A plurality of third clamps supporting the second clamps corresponding to the plurality of transformer bodies; A base member fixed to a bottom surface of the transformer storage unit and having the plurality of third clamps mounted on an upper surface thereof; First and second support members disposed on both sides of the plurality of transformer bodies respectively, one end of which is fixed to the base member and the other end of which is coupled to one of both ends of the first clamp; First and second horizontal cushioning members disposed between both ends of the first clamp and the other ends of the first and second support members, respectively, for buffering the first clamp; A plurality of pairs of support members disposed on the front and rear sides of each of the plurality of transformer bodies and having one end fixed to the base member and the other end coupled to one of a front end and a rear end of the first clamp; First and second fixing devices respectively installed on the third and fourth support members for fixing the transformer main body 10; And a plurality of vertical cushioning members respectively installed on the plurality of third clamps to elastically support loads of the plurality of transformer bodies applied through the second clamps.

By applying the horizontal and vertical buffer members, the transformer of the present invention can reliably prevent the displacement in the longitudinal direction (longitudinal direction or vertical direction) and the width direction (transverse direction or horizontal direction) of the transformer main body from earthquake or impact, There is an advantage that the efficiency is improved.

The transformer of the present invention has a simple earthquake-proof structure capable of supporting a simple transformer main body in the transformer storage compartment, thereby securing the earthquake-proof strength, thereby reducing the cost.

1 is a schematic cross-sectional view of a transformer according to an embodiment of the present invention,
Fig. 2 is a cross-sectional view taken along line AA in Fig. 1,
FIG. 3 is a perspective view showing a fastening device which is a substantial part of the present invention,
4 is a cross-sectional view showing a horizontal buffering device as a main part of the present invention,
5 is a cross-sectional view showing a connection relationship between a damping member and a stop member, which are essential parts of the present invention.

Hereinafter, an embodiment of a transformer of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, a transformer according to an embodiment of the present invention includes a transformer main body 10 having three rectangular transformers, (100).

As shown in FIGS. 1 and 2, the transformer of the present invention includes first and second clamps 20 and 30 for connecting and fixing a plurality of transformer bodies 10 at an upper portion and a lower portion, A third clamp 40 supporting the transformer main body 30, a base member 60 fixed to the bottom surface of the transformer accommodating unit 100, And first and second horizontal cushioning members (80, 81) disposed between the opposite ends of the first clamp (20) and the other ends of the first and second support members (80, 81), respectively, A plurality of pairs of third and fourth support members (82, 83) disposed on the front and rear sides of each of the plurality of transformer bodies (10) The first and second clamping devices 70 and 70 are connected to the transformer main body 10 through the second clamp 30, A number of vertical buffer member 45 is made be large.

The upper part of the transformer main body 10 is connected to the first clamp 20 via the iron core connecting member 12 and the lower part of the transformer main body 10 is connected to the second clamp 20 via the iron core connecting member 12, And is connected to the clamp 30.

The first clamp 20 is used for connecting and fixing a plurality of transformer main bodies 10 from above and is fixed to a transformer accommodating unit 100 by a plurality of fastening members (bolts, nuts, etc.) . The second clamp 30 is connected to a plurality of transformer main bodies 10 at the lower portion thereof and is supported by a third clamp 40, which will be described later.

The third clamp 40 supports the second clamp 30 in correspondence with the plurality of transformer bodies 10 and has a plurality of trapezoidal portions T And a vertical buffer member 45 is disposed at the center of the trapezoidal portion T, respectively. The third clamp 40 is fixed to the base member 60 and the first and second support members 80 and 81 by a fastening member (not shown). When the third clamp 40 is fastened to the first and second support members 80 and 81, a fastening member (not shown) is inserted through a bent plate (not shown, but an L-shaped plate) .

The base member 60 is fixed to the bottom surface of the transformer accommodating unit 100 and the third clamp 40 is disposed on the upper surface thereof. The base member 60 has a plurality of I-shaped steel members formed in a predetermined shape, and both ends thereof are fastened to the transformer accommodating case 100 by bolts 64.

The first and second support members 80 and 81 are disposed on both sides of the plurality of transformer bodies 10, as shown in FIG. One end of the first and second support members 80 and 81 is fixed to the base member 60 and the other end of the first and second support members 80 and 81 is coupled to one of the opposite ends of the first clamp 20.

The first and second horizontal cushioning members 35 are disposed between the opposite ends of the first clamp 20 and the other ends of the first and second support members 80 and 81, (Resilient) from the first and second support members 80 and 81 even when the first clamp 20 is released.

As shown in FIG. 2, the third and fourth support members 82 and 83 are disposed at the front and rear of each of the plurality of transformer bodies 10, one end of which is fixed to the base member 60, And is configured to be coupled to one of a front end and a rear end of the first clamp 20 at an end thereof.

As shown in FIGS. 1 and 2, the transformer of the present invention has a front and a rear surface of the first clamp 20 and has a two-step bent structure in addition to the horizontal buffer member 35. The front and rear ends of the first clamp 20, A plurality of pairs of first connection members 120 connected between one of the first and second support members 82 and 83 and a plurality of support members 82 and 83, And a plurality of pairs of second connection members 122 installed at the lower side and connecting between the first connection member 120 and the plurality of pairs of support members 82 and 83.

The first connecting member 120 and the second connecting member 122 are fastened to the first clamp 20 and the supporting member 80 by fastening members (not shown). The first connecting member 120 and the second connecting member 122 may be integrally welded to the first clamp 20 and the supporting member 80 in accordance with a user's request.

On the other hand, the transformer of the present invention can secure the earthquake-proof strength only when the first and second connecting members 120 and 122 are disposed in the first clamp 20 and the impact or seismic resistance is weak. However, A pair of first and second horizontal buffer members 35, a plurality of vertical buffer members 45, and first and second fixing apparatuses 70, which will be described later, are applied.

A second clamp 30 is disposed between the base member 60 and the lower portion of the transformer main body 10 and a third clamp 40 is disposed below the second clamp 30, A plurality of vertical cushioning members 45 are disposed at positions corresponding to the lower portion of the transformer main body 10 with an interval therebetween.

As shown in FIG. 1, the third clamp 40 has a plurality of trapezoidal portions T spaced in a line, and vertical cushioning members 45 are disposed at the center of the trapezoidal portion T . As shown in FIGS. 1 and 5, the inclined surface 105 of the third clamp 40 is provided with a support block 91 disposed at a lower portion of the first and second support members 80 and 81, And a stop member 95 connected to the damping member 84 coupled by the engagement member 85 are disposed opposite to each other.

5 shows that the stop member 95 is disposed on the second support member 81. The stop member 95 is arranged such that the hypotenuse of a right angle triangle opposes the inclined surface 105 of the third clamp 40, Are placed facing each other. The damping member 84 is made of a material or an apparatus (device) such as an elastic member capable of absorbing vibration. Therefore, even if vibration is added to the iron core connecting member 12 of the transformer main body 10 against a severe impact or a large earthquake, the stationary member 95 supports the longitudinal shaking of the iron core connecting member 12, It is possible to reliably prevent the displacement of the arm 12. This can reduce the loss of the transformer and improve the efficiency. Both ends of the third clamp 40 are fixed to the base member 60 by bolts 62 and nuts (not shown), and a plurality of pairs of third and fourth support members 82, Is fixed to the base member 60 by bolts 64 and nuts (not shown).

As shown in FIG. 2, the plurality of pairs of third and fourth support members 82 and 83 are disposed at the front and rear of each of the plurality of transformer bodies 10, and one end of the third and fourth support members 82 and 83 is fixed to the base member 60 And is coupled to one of the front end and the rear end of the first clamp 20 at the other end.

As shown in FIG. 2, the third and fourth supporting members 82 and 83 include first and second fixing devices 70 for fixing the transformer main body 10. The support member 80 may be used by fastening a plurality of I-shaped steel members, or a section steel member having a U-shaped cross-section. Here, it is shown that a 'C' shaped section steel is applied. A bending member 90 for interconnecting the base member 60 is disposed at a lower end of the third and fourth support members 82 and 83, And L is a combination of the two.

2 and 3, the first and second fixing devices 70 are respectively disposed on the third and fourth supporting members 82 and 83, and the upper end of the upper portion of the transformer main body 10 is held And a second gripping member 74 disposed below the third and fourth support members 82 and 83 for gripping one lower end of the transformer main body 10 .

The first holding member 72 is formed in the form of a two-step bent plate and is fixed to an upper predetermined portion of the supporting member 80 (a position corresponding to the upper portion of the transformer main body 10) by a fastening member 73 do. 3, the second gripping member 74 is disposed on the fourth support member 83 so as to be movable up and down, and includes a shaft 76 inserted into the through hole formed in the support block 88 . The drive shaft 76 is threaded on the outer periphery and is screwed into a through hole (not shown) of the support block 88.

The hole 75 formed at the center of the second gripping member 74 is formed in a two-step shape so that a shaft 76 arranged at the rear is inserted. Since the holes 75 are formed in two stages, the shaft 76 is inserted and the second holding member 74 can be moved up and down. The second gripping member 74 is configured to move upwardly and downwardly by engaging the handle 78 with the shaft 76 so as to grip or release the transformer main body 10. The handle 78 is removed by the user after the second gripping member 74 is moved to a predetermined position to support the transformer main body 10. [

The first and second fastening devices 70 are arranged so that the displacement in the vertical direction or the longitudinal direction from the impact or vibration is linearly applied to the transformer main body 10 with respect to the longitudinal direction . The first and second fastening devices 70 may include first and second fastening members 72 and 74 in addition to the first to third clamps 20, It is possible to reduce the displacement in the longitudinal direction and the width direction of the transformer main body 10, thereby reducing the loss of the transformer and improving the efficiency.

The pair of first and second horizontal cushioning members 35 are respectively disposed between the opposite ends of the first clamp 20 and the other ends of the first and second support members 80 and 81 so that the first clamp 20 ) In a buffered manner. As shown in FIG. 4, the pair of horizontal cushioning members 35 includes a first connecting member 31 having a male screw 32 formed at one end thereof, And a resilient member 37 disposed between the first and second connecting members 31 and 33. The second connecting member 33 is formed with a female screw 34 at an end thereof. The first and second connecting members 31 and 33 are formed at the other end thereof with cross-shaped grooves (not shown) so as to be easily rotated by a wrench or other tool. The first connection member 31 may be coupled to the second connection member 33 while being fixed to the support member 80 by a fastening member (not shown) 2 connecting member 33 may be coupled to the first connecting member 31 in a state where the connecting member 33 is fixed to the first clamp 20.

As shown in FIGS. 1, 2 and 5, the plurality of vertical buffer members 45 includes a guide block 44 disposed at an inner upper portion of the cylinder 42 and a guide block 44 disposed at a lower portion of the guide block 44 And a spring 48 connected to one end side of the guide plate 46 and the guide plate 46, respectively.

The plurality of vertical cushioning members 45 are connected to the cylinder 42 in the third clamp 40 disposed at the lower portion of the second clamp 30 (i.e., the lower portion corresponding to the position corresponding to the transformer main body 10) Respectively. The guide block 44 may be fixed to a predetermined lower portion of the second clamp 30 so as to be coupled to the cylinder 42. The guide block 44 may be fixed to the cylinder 42 by the second clamp 30 and the third clamp 40 ) May be interconnected. That is, at a point where the earthquake or impact is weak, a stepped portion (not shown) is formed at a lower portion of the second clamp 30 and a guide block 44 is disposed. So that the second clamp 30 and the third clamp 40 are mutually connected. Here, an example is shown in which the latter applied to a point where the earthquake or impact is severe.

When an impact or an earthquake occurs in the transformer main body 10 in the vertical direction, the guide block 44 disposed in the cylinder 42 moves downward to press the guide plate 46. When the guide block 44 presses the guide plate 46, the guide plate 46 is connected by the spring 48, thereby relieving the impact. In addition, the impact can be sufficiently mitigated against the side impact as long as the cylinder 42 is not deformed. That is, the primary shock is mitigated by the fixing device 70 for fixing the transformer main body 10 and the secondary shock is mitigated by the vertical shock absorber 45.

As described above, the embodiment of the present invention has been described. However, this embodiment is provided as an example, and the scope of the invention is not limited thereto. It is therefore to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention.

The transformer of the present invention can be widely applied in the design, installation, assembly and maintenance industries of a transformer having a seismic resistant structure.

10: transformer main body 20, 30, 40: first to third clamps
35: first and second horizontal buffer members 42: cylinder
45: a plurality of vertical buffer members 44: guide blocks
46: guide plate 48: spring
60: base member 70: first and second fastening devices
80, 81: first and second supporting members 82, 83: third and fourth supporting members
84: damping member 95: stop member
100: Transformer storage compartment

Claims

A transformer comprising a plurality of transformer bodies (10) arranged in a row and a transformer storage box (100) for housing the plurality of transformer bodies (10)
First and second clamps (20, 30) for connecting and fastening the plurality of transformer bodies (10) at the top and bottom, respectively;
A third clamp (40) supporting the second clamp (30) corresponding to the plurality of transformer bodies (10);
A base member 60 fixed to the bottom surface of the transformer storage unit 100 and having the third clamp 40 mounted on an upper surface thereof;
And a first and a second end of the first and second clamps 20, respectively, which are disposed on both sides of the plurality of transformer bodies 10, one end of which is fixed to the base member 60, A support member (80, 81);
For supporting the first clamp 20 in a cushioning manner and disposed between both ends of the first clamp 20 and the other ends of the first and second support members 80 and 81, A buffer member 35;
A plurality of pairs of first and second pairs of first and second clamps (20, 30), which are disposed on the front and rear sides of each of the plurality of transformer bodies (10), one end portion of which is fixed to the base member (60) Third and fourth support members 82,
First and second fixing devices 70 installed on the third and fourth supporting members 82 and 83 for fixing the transformer main body 10;
And a plurality of vertical cushioning members (45) respectively installed on the third clamps (40) for elastically supporting loads of the plurality of transformer bodies (10) applied through the second clamps Features a transformer.

The method according to claim 1,
The first and second horizontal cushioning members 35,
A first connecting member 31 having a male screw 32 at one end thereof;
A second connecting member 33 having a female screw 34 at one end thereof so as to be screwed with the first connecting member 31;
And an elastic member (37) disposed between the first and second connection members (31, 32).

The method according to claim 1,
The plurality of vertical buffer members (45)
A guide block (44) disposed on the inner upper side of the cylinder (42) provided in the third clamp;
A guide plate 46 disposed below the guide block 44;
And a spring (48) connected at one end to the guide plate (46).

The method according to claim 1,
The first and second securing devices (70)
A first gripping member 72 disposed on one side of the third and fourth support members 82 and 83 for gripping the upper end of the transformer main body 10,
And a second gripping member (74) disposed on the other side of the third and fourth support members (82, 83) and gripping one lower end of the transformer main body (10)
The second gripping member 74 is vertically slidably displaceable on the third and fourth support members 82 and 83 and moves in the vertical direction by rotating the shaft 76 with the handle 78 interposed therebetween. To thereby grasp or release the transformer main body (10).

The method according to claim 1,
A plurality of pairs of first connection members 120 having a two-step bent structure and connecting between one of the front end and the rear end of the first clamp 20 and a plurality of pairs of third and fourth support members 82 and 83, Wow;
Shaped structure having an open bottom and is provided below the first connection member 120 to connect the first connection member 120 and the plurality of pairs of third and fourth support members 82 and 83, Further comprising a plurality of pairs of second connecting members (122) connecting between the first and second connecting members.

The method according to claim 1,
The plurality of pairs of third and fourth support members (82, 83)
Wherein a bent member (90) for interconnecting with the base member (60) is disposed at one lower end of the bent member (90), wherein the bent member (90) is formed by combining the L character and the converted L character.

The damping device according to claim 1, further comprising a damping device installed between the first and second support members (80, 81) and the third clamp (40) adjacent to the first and second support members (80, 81) &Lt; / RTI &
The damping device
A support block 91 disposed below the support members 80 and 81 so as to face the inclined surface 105 of the third clamp 40;
A damping member 84 coupled to the shaft 85 fixed at one end to the support block 91 to provide a damping force;
And a stop member (95) connected to the tip end of the damping member (84) and opposed to the inclined surface (105).