CN209962827U - Box transformer substation structure with high protection level - Google Patents
Box transformer substation structure with high protection level Download PDFInfo
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- CN209962827U CN209962827U CN201921074293.2U CN201921074293U CN209962827U CN 209962827 U CN209962827 U CN 209962827U CN 201921074293 U CN201921074293 U CN 201921074293U CN 209962827 U CN209962827 U CN 209962827U
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Abstract
The utility model discloses a high protection level's case becomes structure, all around of the door frame upper tank mouth all outwards bend and form the turn-ups, and the concatenation of the turn-ups of case mouth corner is through circular arc smooth transition, and joint has sealing rubber on the turn-ups, and after left side door and right side door were closed, the internal face of left side door and right side door all contradicted on sealing rubber; the left side door right-hand member is equipped with the groove shrouding, and the upper and lower both ends of groove shrouding are all bent and are formed the ka tai of U shape, and the left end of right side door is inwards bent and are formed the flange, be equipped with at the upper and lower both ends of flange with the draw-in groove of ka tai looks adaptation, left side door and the closed back of right side door, the flange stretches in the vallecular cavity of groove shrouding, and ka tai and the mutual joint of draw-in groove, the sealing rubber of both sides corresponds the joint in the vallecular cavity of the ka tai of U shape about the door frame. The utility model has the advantages of reasonable design, the protecting effect is good, can satisfy the high protection level case that uses under the adverse circumstances and become.
Description
The technical field is as follows:
the utility model relates to a high protection level's case becomes structure belongs to box transformer and makes the field.
Background art:
photovoltaic power generation is undergoing vigorous development in these years as an emerging industry for new energy power generation. The photovoltaic grid-connected power station generally comprises a plurality of independent units, and an electric energy transmission path is as follows: the solar component, the inverter and the combiner box are connected to the box type transformer, the voltage is increased to 35kV, generated energy is sent to the boosting transformer substation through the collector line, and then the generated energy is integrally sent to a national power grid. Therefore, the box-type transformer belongs to a core device in the whole photovoltaic power station, and the reliability of the device is directly related to whether the safe operation of a power grid system can be realized.
A large number of solar assemblies need to be installed during construction of the photovoltaic power station, and therefore the large photovoltaic power station needs to occupy a large area, and is generally constructed in a remote area with strong illumination. The service environment of the photovoltaic box transformer substation is determined by the service characteristics and is often subjected to severe natural climates such as strong wind, heavy rain and severe sand erosion.
The conventional box-type transformer is used as an electric terminal device, generally approaches to a load center, and the using climate environment is generally better, so that the overall protection performance of the box-type transformer is weaker. Therefore, the box transformer substation with high protection level, which can meet the use requirement in severe environment, is urgently needed to be researched.
The invention content is as follows:
the utility model relates to a solve the problem that above-mentioned prior art exists and provide a case becomes structure of high protection level.
The utility model discloses the technical scheme who adopts has: a box transformer substation structure with high protection level comprises a door frame, a left door and a right door, wherein a box opening is formed in the door frame, the left door and the right door are hinged to the door frame through hinges, the box opening is sealed by the left door and the right door, the periphery of the box opening in the door frame is bent outwards to form a flange, the flanges at the corners of the box opening are spliced through circular arcs in smooth transition, sealing rubber is clamped on the flanges, and after the left door and the right door are closed, the inner wall surfaces of the left door and the right door are abutted against the sealing rubber; the left side door right-hand member is equipped with the groove shrouding, and the upper and lower both ends of groove shrouding are all bent and are formed the ka tai of U shape, and the left end of right side door is inwards bent and are formed the flange, be equipped with at the upper and lower both ends of flange with the draw-in groove of ka tai looks adaptation, left side door and the closed back of right side door, the flange stretches in the vallecular cavity of groove shrouding, and ka tai and the mutual joint of draw-in groove, the sealing rubber of both sides corresponds the joint in the vallecular cavity of the ka tai of U shape about the door frame.
Further, sealing rubber includes a body, the length direction of body is equipped with breach portion and draw-in groove portion, breach portion is located the outside of draw-in groove portion.
Furthermore, the tail end of the flanging is bent to form a clamping edge perpendicular to the flanging, and the clamping groove part of the sealing rubber is clamped on the clamping edge.
Further, the depth of the groove cavity of the clamping table is smaller than the thickness of the sealing rubber.
Furthermore, a door lock is arranged on the left side door or the right side door.
The utility model discloses following beneficial effect has:
firstly, the whole door frame is designed to be flanged all around, the arc of the flange splicing part is in smooth transition, and the door frame is ground flat after welding without gaps. Therefore, the purpose that water cannot enter the box transformer from the surface of the shell of the box transformer in four directions is achieved.
And secondly, the box transformer substation door is designed with an inner flanging structure, so that the mechanical strength is ensured, the integral press fit of the door and the box transformer substation shell is also fully ensured, and the inner surface is designed to be in press fit contact with the sealing rubber strip.
Embedding a sealing rubber strip at the flanging position of the door frame, wherein the size and the material of the rubber strip are determined according to different design requirements. When the box transformer substation door is closed, the deformation compression amount of the rubber strip is ensured to be between 60% and 80%. The rubber strip with too large compression amount can generate plastic deformation and cracking, so that the service life is reduced; if the size is too small, the effect of preventing sand wind from entering cannot be achieved, and the protection level is reduced.
When the conventional box transformer substation is closed, because the positions of the sealing rubber strip and the door frame flanging are interfered, the sealing rubber strip is sawed off or the door frame flanging at the interference position is cancelled, and in the use in a normal environment, the accident that water enters from the upper opening of the box transformer substation door to burn down the box transformer element is also frequently caused. The utility model discloses set up the draw-in groove of the ka tai of left side door and the right door, the design of ka tai is slightly wider than joint strip on the left side door, and the groove cavity degree of depth of ka tai is less than sealing rubber's thickness. When the box transformer substation is closed, the compression deformation amount of the rubber strip is controlled within a design range; a left side door slot side mouth designs one from top to bottom hem (groove shrouding), and the hem is connected upper and lower ka tai, and the case becomes the back after the door is closed, also can't get into the case and become inside by the water and the sand blown by the wind that invade between two crack. The draw-in groove of right side door is slightly wider than the left side door ka tai, and after the case becomes the door and closes, the draw-in groove pressfitting becomes the effect of the complete airtight case change at left side door ka tai outer opening.
And fifthly, reserving installation gaps when the left and right side doors are designed. The structural design can be adjusted through the matching of the door frame, the sealing rubber strips, the clamping groove and the like, and the installation and manufacturing margin is larger, so that the requirements on the processing and assembling precision of the box transformer substation door are reduced; meanwhile, the quality problem caused by the fact that the box transformer substation door is difficult to open and close due to the fact that the whole box transformer substation slightly deforms after the box transformer substation is transported for a long distance is avoided.
Sixthly, the door frame is flanged, the sealing rubber ring is designed and installed, and the sealing clamping table is matched with the clamping groove for use. The box-type transformer substation achieves the protection level above IP54, and simultaneously meets the requirement of preventing sand wind from invading.
Description of the drawings:
fig. 1 is a front view of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 and 5 correspond to partial enlarged views of fig. 2 and 3, respectively.
Fig. 6 is a partial enlarged view of the middle door frame of the present invention.
Fig. 7 is a cross-sectional view of the middle sealing rubber of the present invention.
Fig. 8 and 9 are corresponding structural diagrams of the left side door and the right side door of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings.
As fig. 1 to 9, the utility model relates to a case becomes structure of high protection level, including door frame 1, left side door 2 and right side door 3, be equipped with the case mouth on the door frame 1, left side door 2 and right side door 3 all articulate on door frame 1 through the hinge, and left side door 2 will with right side door 3 the case mouth is sealed.
All outwards bend and form turn-ups 11 around the case mouth on door frame 1, and the concatenation of case mouth corner turn-ups 11 passes through circular arc smooth transition, and the joint has sealing rubber 4 on turn-ups 11, and the door 2 on the left side is closed back with the door 3 on the right, and the internal face of door 2 on the left side and the door 3 on the right all contradicts on sealing rubber 4.
A groove sealing plate 21 is arranged at the right end of the left door 2, the upper end and the lower end of the groove sealing plate 21 are both bent to form a U-shaped clamping table 22, and a groove cavity of the clamping table 22 is arranged towards the direction of the inner cavity of the door frame 1. The left end of right side door 3 inwards bends and forms flange 31, be equipped with at the upper and lower both ends of flange 31 with the draw-in groove 32 of card platform 22 looks adaptation, left side door 2 and the closed back of right door 3, flange 31 stretch in the vallecular cavity of groove shrouding 21, and card platform 22 and draw-in groove 32 joint each other, the sealing rubber 4 of door frame 1 upper and lower both sides correspond the joint in the vallecular cavity of the card platform 22 of U-shaped form.
When a conventional box transformer substation is closed, because the positions of the sealing rubber strip and the door frame flanging are interfered, the sealing rubber strip is sawn off or the door frame flanging at the interference position is cancelled, and in the use of a normal environment, the accident that water enters from the upper opening of a box transformer substation door to burn down box transformer elements also often occurs. The utility model discloses set up the draw-in groove 32 of the card platform 22 of left side door and the right door, card platform 22 design is slightly wider than joint strip on the left side door, and the vallecular cavity degree of depth of card platform 22 is less than the thickness of sealing rubber 4. When the box transformer substation is closed, the compression deformation amount of the rubber strip is controlled within a design range; a left door clamping groove edge opening is provided with a hem (groove sealing plate 21) from top to bottom, the hem is connected with an upper clamping table 22 and a lower clamping table 22, and water and sand blown into the box transformer from a gap between two doors cannot enter the box transformer after the box transformer is closed. The clamping groove 32 of the right door is slightly wider than the clamping table 22 of the left door, and after the box transformer substation door is closed, the clamping groove 32 is pressed on the outer opening of the clamping table 22 of the left door to completely seal the box transformer substation.
And when the left and right side doors are designed, an installation gap is reserved. The structural design can be adjusted through the matching of the door frame, the sealing rubber strips, the clamping groove and the like, and the installation and manufacturing margin is larger, so that the requirements on the processing and assembling precision of the box transformer substation door are reduced; meanwhile, the quality problem caused by the fact that the box transformer substation door is difficult to open and close due to the fact that the whole box transformer substation slightly deforms after the box transformer substation is transported for a long distance is avoided.
The door frame is flanged, the sealing rubber ring is designed and installed, and the sealing clamping table is matched with the clamping groove for use. The box-type transformer substation achieves the protection level above IP54, and simultaneously meets the requirement of preventing sand wind from invading.
The utility model provides a sealing rubber 4 includes a body 41, and the length direction of body 41 is equipped with breach portion 411 and draw-in groove portion 412, and breach portion 411 is located the outside of draw-in groove portion 412. The gap 411 can ensure that the deformation compression amount of the rubber strip is between 60% and 80%. The rubber strip with too large compression amount can generate plastic deformation and cracking, so that the service life is reduced; if the size is too small, the effect of preventing sand wind from entering cannot be achieved, and the protection level is reduced.
The end of the turned edge 11 is bent and forms a clamping edge 110 perpendicular to the turned edge 11, and the clamping groove part 412 of the sealing rubber 4 is clamped on the clamping edge 110.
The utility model discloses the whole turn-ups all around of door frame design, turn-ups concatenation department circular arc smooth transition grinds the flat after welding, does not keep the gap. Therefore, the purpose that water cannot enter the box transformer from the surface of the shell of the box transformer in four directions is achieved.
The door of case transformer substation designs inside flanging structure, has also fully guaranteed the whole pressfitting of door and case transformer substation casing when guaranteeing mechanical strength, and designs internal surface and joint strip pressfitting contact. And a sealing rubber strip is embedded in the flanging of the door frame, and the size and the material of the rubber strip are determined according to different design requirements. When the box transformer substation door is closed, the deformation compression amount of the rubber strip is ensured to be between 60% and 80%. The rubber strip with too large compression amount can generate plastic deformation and cracking, so that the service life is reduced; if the size is too small, the effect of preventing sand wind from entering cannot be achieved, and the protection level is reduced.
On the left side door 2 or be equipped with a lock 5 on the right side door 3, the utility model provides a lock 5 is current structure, so the utility model discloses no longer give unnecessary details to the concrete mounting means and the concrete locking structure of lock.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a high protection level's case becomes structure, includes door frame (1), left side door (2) and right door (3), be equipped with the case mouth on door frame (1), left side door (2) and right door (3) all articulate on door frame (1) through the hinge, and left side door (2) and right door (3) will the case mouth seals its characterized in that: the periphery of an upper box opening of the door frame (1) is outwards bent to form a flange (11), the flanges (11) at the corners of the box opening are spliced through circular arc smooth transition, sealing rubber (4) is clamped on the flanges (11), and after the left door (2) and the right door (3) are closed, the inner wall surfaces of the left door (2) and the right door (3) are abutted against the sealing rubber (4); the left side door (2) right-hand member is equipped with groove shrouding (21), and the upper and lower both ends of groove shrouding (21) are all bent and are formed the ka tai (22) of U shape, and the left end of right door (3) is inwards bent and are formed flange (31), be equipped with at the upper and lower both ends of flange (31) with card platform (22) looks adaptation draw-in groove (32), the left side door (2) and right door (3) closed back, flange (31) stretch in the groove cavity of groove shrouding (21), and ka tai (22) and draw-in groove (32) joint each other, sealing rubber (4) of both sides correspond the joint in the groove cavity of the ka tai (22) of U shape about door frame (1).
2. The high protection level box-type substation structure of claim 1, characterized in that: the sealing rubber (4) comprises a body (41), a notch portion (411) and a clamping groove portion (412) are arranged in the length direction of the body (41), and the notch portion (411) is located on the outer side of the clamping groove portion (412).
3. The high protection level box-type substation structure of claim 2, characterized in that: the tail end of the flanging (11) is bent to form a clamping edge (110) perpendicular to the flanging (11), and the clamping groove part (412) of the sealing rubber (4) is clamped on the clamping edge (110).
4. The high protection level box-type substation structure of claim 1, characterized in that: the depth of the groove cavity of the clamping table (22) is smaller than the thickness of the sealing rubber (4).
5. The high protection level box-type substation structure of claim 1, characterized in that: and a door lock (5) is arranged on the left side door (2) or the right side door (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921074293.2U CN209962827U (en) | 2019-07-10 | 2019-07-10 | Box transformer substation structure with high protection level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921074293.2U CN209962827U (en) | 2019-07-10 | 2019-07-10 | Box transformer substation structure with high protection level |
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| Publication Number | Publication Date |
|---|---|
| CN209962827U true CN209962827U (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921074293.2U Active CN209962827U (en) | 2019-07-10 | 2019-07-10 | Box transformer substation structure with high protection level |
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| Country | Link |
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| CN (1) | CN209962827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265206A (en) * | 2019-07-10 | 2019-09-20 | 镇江天力变压器有限公司 | A kind of case structure changes of high-protection level |
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2019
- 2019-07-10 CN CN201921074293.2U patent/CN209962827U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265206A (en) * | 2019-07-10 | 2019-09-20 | 镇江天力变压器有限公司 | A kind of case structure changes of high-protection level |
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