Box-type transformer convenient for mounting fan

Abstract

A box-type transformer facilitating fan installation comprises a box body, a transformer body and a cooling fan, the transformer body and the cooling fan are arranged in the box body, the lower portion of the transformer body is connected with a bottom plate of the box body through a lower clamping piece, the lower clamping piece is slidably connected with a plurality of clamping limiting units in the length direction of the lower clamping piece, and each clamping limiting unit comprises two symmetrically-arranged clamping limiting assemblies; the clamping limiting assembly is connected with the lower clamping piece in a fastened mode. Fixing plates are arranged at the four corners of the lower portion of the cooling fan, the clamping limiting assembly comprises an adjusting seat, the upper portion of the adjusting seat is in sliding connection with the lower clamping piece, inserting grooves matched with the fixing plates are formed in the lower portion of the adjusting seat, and the fixing plate on the side, away from the lower clamping piece, of the cooling fan is connected with the bottom plate of the box body through a second fastener. According to the utility model, one side, provided with the fixing plates, of the heat dissipation fan is pushed into the corresponding inserting groove, and the two fixing plates on the other opposite side are fixed on the bottom plate of the box body through the second fasteners, so that the heat dissipation fan mounting structure is suitable for mounting the heat dissipation fan on the box body with a narrow space, the fixing mode is relatively simple, and the heat dissipation fan mounting structure is convenient to mount and dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to box type transformer technical field, concretely is a box type transformer convenient for installing fan. BACKGROUND

[0002] The box type transformer is a kind of power equipment with transformer and related equipment integrated in a closed box, which has good protective performance and is suitable for various outdoor and indoor environments.

[0003] The existing box type transformer is installed with cooling fan after installing transformer in the box, the shell four corners of cooling fan are generally provided with connecting plate, for being connected with the bottom plate of box by bolt and screw thread, since the remaining space inside box is small, it is inconvenient to install cooling fan, especially the connecting plate close to the lower part of transformer, the distance is close to transformer, it is inconvenient to pass or tighten bolt on connecting plate, and it is also inconvenient to disassemble bolt for repairing cooling fan. UTILITY MODEL CONTENTS

[0004] To solve the technical problems in the above background art, the utility model provides a box type transformer convenient for installing fan.

[0005] The utility model technical scheme is as follows:

[0006] A box type transformer convenient for installing fan, the box type transformer includes box and the transformer and cooling fan arranged in it, the lower part of transformer is connected with the bottom plate of box by lower clamp, cooling fan is arranged outside transformer, a plurality of clamping limiting units are slidably connected on lower clamp along the length direction thereof, the clamping limiting unit includes two symmetrically arranged clamping limiting assemblies, the position of clamping limiting assembly along the length direction of lower clamp is adjustable, and the clamping limiting assembly is tightly connected with lower clamp by first fastener;

[0007] The four corners of the lower part of cooling fan are provided with fixed plate, the clamping limiting assembly includes adjusting seat, the upper part of adjusting seat is slidably connected with lower clamp, the lower part is provided with the plug-in slot matched with fixed plate on the side close to cooling fan, and the fixed plate on the side away from lower clamp of cooling fan is connected with the bottom plate of box by second fastener.

[0008] After installing transformer in lower clamp in the box, the distance of two clamping limiting assemblies in the same group is adjusted according to the distance of two fixed plates on one side of cooling fan, adjusting seat is fixed on lower clamp by first fastener, cooling fan is installed, cooling fan with fixed plate is pushed into corresponding plug-in slot, and the other two fixed plates on the opposite side are fixed on the bottom plate of box by second fastener, the clamping limiting unit is provided with a plurality of groups, the fixing of multiple cooling fans can be realized, it is suitable for installing cooling fan in narrow space box, and the fixing mode is relatively simple, convenient for installation and disassembly.

[0009] The specific structure of the lower clamp is that the lower clamp is a groove type structure with a notch, the notch of the lower clamp is arranged close to the heat dissipation fan, a sliding strip is arranged on the lower part of the notch close to the heat dissipation fan, and the sliding strip is arranged along the length direction of the lower clamp and is in sliding connection with the adjusting seat.

[0010] When the fixing plates are inserted into the insertion grooves of the two clamping and limiting assemblies in the same group, the opening direction of the insertion groove is consistent with the opening direction of the notch, and the opposite sides of the insertion grooves of the two clamping and limiting assemblies in the same group are both provided with baffle plates, so as to limit the movement of the corresponding fixing plate in the length direction of the sliding strip through the baffle plates.

[0011] When the fixing plate is inserted into the corresponding insertion groove, the upper surface or the lower surface of the fixing plate may have a gap with the insertion groove, so as to avoid the phenomenon that the fixing plate has a large amplitude driven by the heat dissipation fan during work, and the insertion groove is provided with a rubber pad, so as to fill the gap between the fixing plate and the insertion groove, so as to not only reduce the vibration phenomenon of the fixing plate, but also play a buffering and damping effect on the heat dissipation fan.

[0012] As to the setting position of the rubber pad, one end of the rubber pad is detachably arranged on the outer surface of the side of the insertion groove close to the heat dissipation fan, and the other end is arranged in the insertion groove, one end of the rubber pad is located outside the insertion groove, so as to avoid the deformation or wrinkle phenomenon of the fixing plate when the fixing plate is inserted into the insertion groove, reduce the phenomenon that the fixing plate cannot be normally inserted into the insertion groove, the height of the insertion groove plus the thickness of the rubber pad is slightly greater than the thickness of the fixing plate, because the rubber pad has elasticity, the rubber pad is deformed when the fixing plate is inserted into the insertion groove, so the fixing plate will not shake when inserted into the insertion groove.

[0013] The specific structure of the lower clamp is that the lower clamp includes an upper plate, a vertical plate and a lower plate parallel to the upper plate, the sliding strip is arranged on the side of the lower plate close to the heat dissipation fan, the cross section of the sliding strip and the lower plate is in T-shaped structure, and the upper part of the adjusting seat is provided with a T-shaped groove matched with the connection position of the sliding strip and the lower plate, so that the sliding strip and the lower plate are arranged in T-shaped structure, the adjusting seat is convenient to install, and the movement of the adjusting seat in the length direction perpendicular to the lower clamp can be limited.

[0014] Because the fixing plate is arranged in the insertion groove, in order to facilitate the installation of the fixing plate on both sides of the heat dissipation fan at the same installation height, the second fastener is a fastening bolt, a height increasing nut is threadedly connected on the second fastener, the height increasing nut is located below the fixing plate, and the thickness of the height increasing nut is consistent with the thickness of the lower plate.

[0015] The beneficial effects of the utility model lie in:

[0016] The lower clamp is installed in the box body, then the transformer is installed on the lower clamp, a plurality of clamping limiting units are sequentially inserted and slid on the lower clamp and the slide bar thereon, then the interval of the two clamping limiting assemblies is adjusted according to the interval of the two fixing plates on the same side of the heat dissipation fan to be installed, the adjusting seat is fixed on the lower clamp through the first fastener, the two fixing plates on the same side are inserted into the corresponding insertion slots, the two fixing plates on the other side are fixed and connected to the bottom plate of the box body through the second fastener, and the heat dissipation fan is fixed, so that the heat dissipation fan is simple in mounting and dismounting and is suitable for installation in a narrow space.

[0017] In order to avoid the phenomenon that the heat dissipation fan drives the fixing plate to have a large amplitude in work, the insertion slot is provided with a rubber pad, the gap between the fixing plate and the insertion slot is filled through the rubber pad, the vibration phenomenon of the fixing plate can be reduced, and the heat dissipation fan can be buffered and damped. BRIEF DESCRIPTION OF DRAWINGS

[0018] In the drawings:

[0019] Figure 1 It is a schematic view of the internal structure of the box body;

[0020] Figure 2 It is a schematic view of the internal structure of the box body; Figure 1 It is an enlarged structure schematic view of A in the middle;

[0021] Figure 3 It is a schematic view of the first mounting structure of the lower clamp and the heat dissipation fan;

[0022] Figure 4 It is a schematic view of the first mounting structure of the lower clamp and the heat dissipation fan; Figure 3 It is an enlarged structure schematic view of B in the middle;

[0023] Figure 5 It is a schematic view of the second mounting structure of the lower clamp and the heat dissipation fan;

[0024] Figure 6 It is a schematic view of the second mounting structure of the lower clamp and the heat dissipation fan; Figure 5 It is an enlarged structure schematic view of C in the middle;

[0025] Figure 7 It is a schematic view of the fixing plate structure of the heat dissipation fan;

[0026] Figure 8 It is a schematic view of the adjusting seat structure;

[0027] The components represented by the reference signs in the drawings are:

[0028] 1, box; 101, bottom plate; 2, transformer; 3, lower clamp; 301, upper plate; 302, vertical plate; 303, lower plate; 4, slide bar; 5, cooling fan; 501, fixed plate; 6, adjusting seat; 601, plug-in slot; 602, T-shaped slot; 7, baffle; 8, rubber pad; 9, heightening nut; 10, first fastener; 11, second fastener. DETAILED DESCRIPTION

[0029] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 7 , a box-type transformer 2 convenient to install a fan, the box-type transformer 2 includes a box 1 and a transformer 2 and a cooling fan 5 arranged therein, the lower part of the transformer 2 is connected with the bottom plate 101 of the box 1 through the lower clamp 3, the cooling fan 5 is arranged outside the transformer 2, and the four corners of the lower part of the cooling fan 5 are provided with fixed plates 501, two fixed plates 501 are located on the same side, and the other two fixed plates 501 are arranged on the opposite side.

[0030] Among them, the lower clamp 3 of the embodiment is slidably connected with three groups of clamping limiting units along the length direction, each clamping limiting unit includes two symmetrically arranged clamping limiting assemblies, the clamping limiting assemblies are adjustable in position along the length direction of the lower clamp 3, and the clamping limiting assemblies are fastened and connected with the lower clamp 3 through the first fastener 10, and the first fastener 10 is a fastening bolt.

[0031] Referring to Figure 3 and Figure 8 , the clamping limiting assembly includes an adjusting seat 6, the upper part of the adjusting seat 6 is slidably connected with the lower clamp 3, the lower part is provided with a plug-in slot 601 adapted to the fixed plate 501 near one side of the cooling fan 5, the first fastener 10 is arranged in the plug-in slot 601 from the upper end of the adjusting seat 6, and is threadedly connected with the upper part of the adjusting seat 6, and the lower end of the first fastener 10 can be tightly abutted on the lower clamp 3, so as to realize the fixed connection between the adjusting seat 6 and the lower clamp 3. The fixed plate 501 away from the lower clamp 3 of the cooling fan 5 is connected with the bottom plate 101 of the box 1 through the second fastener 11, the second fastener 11 is a fastening bolt, the second fastening bolt can be threadedly connected with the bottom plate 101 of the box 1 through the corresponding fixed plate 501, and the two fixed plates 501 arranged with the second fastening bolt are the two same side fixed plates 501 away from the lower clamp 3.

[0032] In the structure, the lower clamp 3 is installed in the box body 1, and then the transformer 2 is installed on the lower clamp 3. After a plurality of clamping limiting units are sequentially inserted and slid on the lower clamp 3 and the slide bar 4 thereon, the distance between the two fixing plates 501 on the same side of the to-be-installed heat dissipation fan 5 is adjusted, the distance between the two clamping limiting assemblies is adjusted, the adjusting seat 6 is fixed on the lower clamp 3 through the first fastener 10, the two fixing plates 501 on the same side are inserted into the corresponding insertion slot 601, the two fixing plates 501 on the other side are fixed and connected to the bottom plate 101 of the box body 1 through the second fastener 11, and the heat dissipation fan 5 is fixed. The installation and dismounting mode of the heat dissipation fan 5 is simple, and the heat dissipation fan 5 is suitable for installation in a narrow space.

[0033] The lower clamp 3 is a groove structure with a notch, the notch is arranged close to the heat dissipation fan 5, and the slide bar 4 is arranged at the lower part of the notch close to one side of the heat dissipation fan 5. The slide bar 4 is arranged along the length direction of the lower clamp 3 and is slid with the adjusting seat 6. Specifically, the lower clamp 3 comprises an upper plate 301, a vertical plate 302 and a lower plate 303 parallel to the upper plate 301. The slide bar 4 is arranged at the side of the lower plate 303 close to the heat dissipation fan 5. The cross section of the slide bar 4 and the lower plate 303 is in T-shaped structure. The upper part of the adjusting seat 6 is provided with a T-shaped slot 602 matched with the slide bar 4 and the lower plate 303. The slide bar 4 and the lower plate 303 are arranged in T-shaped structure, which facilitates the installation of the adjusting seat 6 and can limit the movement of the adjusting seat 6 in the length direction perpendicular to the lower clamp 3. The first fastening bolt penetrates the upper part of the adjusting seat 6 and is tightly pressed to the upper end surface of the slide bar 4.

[0034] When the fixing plates 501 are inserted into the insertion slots 601 of the two clamping limiting assemblies in the same group, the opening direction of the insertion slot 601 is consistent with the opening direction of the notch, and the opposite sides of the insertion slots 601 of the two clamping limiting assemblies in the same group are both provided with the baffle 7, so as to limit the movement of the corresponding fixing plate 501 in the length direction of the slide bar 4.

[0035] Referring to Figure 3 , Figure 4 , Figure 5 and Figure 6 , when the fixing plate 501 is inserted into the corresponding insertion slot 601, the upper surface or the lower surface of the fixing plate 501 may have a gap with the insertion slot 601. In order to avoid the phenomenon that the fixing plate 501 is driven by the heat dissipation fan 5 to have a large amplitude during work, the rubber pad 8 is arranged in the insertion slot 601. The gap between the fixing plate 501 and the insertion slot 601 is filled by the rubber pad 8, which can not only reduce the vibration phenomenon of the fixing plate 501, but also has the effect of buffering and damping for the heat dissipation fan 5.

[0036] Referring to Figure 3 and Figure 4As shown, regarding the placement of the rubber pad 8, one end of the rubber pad 8 is detachably mounted on the outer surface of the insertion slot 601 near the cooling fan 5, and the other end is mounted inside the insertion slot 601. One end of the rubber pad 8 is located outside the insertion slot 601 to prevent deformation or wrinkling when the fixing plate 501 is inserted into the insertion slot 601, thus reducing the possibility of the fixing plate 501 failing to be properly inserted into the insertion slot 601. The height of the insertion slot 601 plus the thickness of the rubber pad 8 is slightly greater than the thickness of the fixing plate 501. Because the rubber pad 8 is elastic, it is pressed down and deformed when the fixing plate 501 is inserted into the insertion slot 601, so the fixing plate 501 will not wobble when inserted into the insertion slot 601.

[0037] See Figure 2 As shown, since the fixing plate 501 is set in the insertion slot 601, in order to facilitate the installation of the cooling fan 5 at the same installation height on both sides of the fixing plate 501, a second fastener 11 is set as a fastening bolt. The second fastener 11 is threaded with a lifting nut 9. The lifting nut 9 is located below the fixing plate 501, and the thickness of the lifting nut 9 is the same as the thickness of the lower plate 303, so as to facilitate the stable installation of the cooling fan 5 in the housing 1.

Claims

1. A box-type transformer (2) for easy installation of a fan, the box-type transformer (2) comprising a box (1) and a transformer (2) and a cooling fan (5) disposed therein, the lower part of the transformer (2) being connected to the bottom plate (101) of the box (1) via a lower clamp (3), and the cooling fan (5) being disposed on the outside of the transformer (2), characterized in that, Multiple sets of snap-fit ​​limiting units are slidably connected to the lower clamp (3) along its length direction. Each snap-fit ​​limiting unit includes two symmetrically arranged snap-fit ​​limiting components. The position of the snap-fit ​​limiting components along the length direction of the lower clamp (3) is adjustable, and the snap-fit ​​limiting components are fastened to the lower clamp (3) through the first fastener (10). The four corners of the lower part of the cooling fan (5) are provided with fixing plates (501). The snap-fit ​​limiting component includes an adjusting seat (6). The upper part of the adjusting seat (6) is slidably connected to the lower clamp (3). The lower part near the cooling fan (5) is provided with a plug-in groove (601) that is compatible with the fixing plate (501). The fixing plate (501) on the side of the cooling fan (5) away from the lower clamp (3) is connected to the bottom plate (101) of the box body (1) through the second fastener (11).

2. The box-type transformer (2) for easy installation of a fan according to claim 1, characterized in that, The lower clamp (3) is a slotted structure with a slot. The slot is located near the cooling fan (5). A slide bar (4) is provided on the lower part of the slot near the cooling fan (5). The slide bar (4) is arranged along the length of the lower clamp (3) and slides with the adjusting seat (6).

3. The box-type transformer (2) for easy installation of a fan according to claim 1, characterized in that, Each of the two locking and limiting components in the same group has a baffle (7) on the opposite side of the insertion slot (601).

4. The box-type transformer (2) for easy installation of a fan according to claim 3, characterized in that, A rubber pad (8) is provided inside the insertion slot (601).

5. A box-type transformer (2) for easy installation of a fan according to claim 4, characterized in that, One end of the rubber pad (8) is detachably disposed on the outer surface of the plug groove (601) near the heat dissipation fan (5), and the other end is disposed inside the plug groove (601).

6. A box-type transformer (2) for easy installation of a fan according to claim 2, characterized in that, The lower clamp (3) includes an integrally formed upper plate (301), a vertical plate (302) and a lower plate (303). A slide bar (4) is provided on one side of the lower plate (303). The slide bar (4) and the lower plate (303) have a T-shaped cross section. The upper part of the adjusting seat (6) is provided with a T-shaped groove (602) that is adapted to the slide bar (4) and the lower plate (303).

7. A box-type transformer (2) for easy installation of a fan according to claim 6, characterized in that, The second fastener (11) is a fastening bolt, and a heightening nut (9) is threaded onto the second fastener (11). The heightening nut (9) is located below the fixing plate (501), and the thickness of the heightening nut (9) is the same as the thickness of the lower plate (303).

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