Oil-immersed transformer with pulling type cooling fins

Abstract

The utility model relates to the technical field of transformers, and discloses an oil-immersed transformer with pulling type cooling fins, which comprises an oil tank, the cooling fins, a connecting seat, a pulling piece, a supporting assembly, a first fastening piece and a second fastening piece, the side wall of the oil tank is provided with a plurality of cooling fins which are parallel to one another and arranged at equal intervals. A connecting seat is arranged on the side wall, used for arranging the cooling fins, of the oil tank; the supporting assembly comprises a first plate and a second plate which are perpendicular to each other, and two mounting blocks arranged at the two ends of the first plate correspondingly. The first plate is used for abutting against the bottom wall of the cooling fin. The second plate is used for abutting against the side wall of the cooling fin. One end, deviating from the first plate, of the mounting block is rotationally connected with a connecting block; the connecting blocks are in one-to-one correspondence with the connecting seats; one end of the pulling piece is connected to the connecting base through a first fastening piece, and the other end of the pulling piece is connected to the corresponding connecting block through a second fastening piece. According to the technical scheme, the stability of the transformer cooling fins can be improved, and the cooling fins are prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically to an oil-immersed transformer with a pull-type heat sink. Background Technology

[0002] Oil-immersed transformers are a widely used type of power transformer. They achieve effective cooling and insulation by immersing the windings in insulating oil, and are suitable for power transmission between high and low voltage in medium and large power systems.

[0003] Existing oil-immersed transformers typically have heat sinks installed on the outer wall of the oil tank to improve heat dissipation. The larger the heat sink, the better the heat dissipation. To meet the heat dissipation requirements of some transformers, some heat sinks are designed to be quite large. While this improves heat dissipation, it also increases the weight of the heat sink, making it unstable and prone to damage. Therefore, this invention proposes an oil-immersed transformer with a pull-type heat sink to improve the stability of the transformer's heat sink and prevent damage. Utility Model Content

[0004] The main purpose of this invention is to provide an oil-immersed transformer with a pull-type heat sink to improve the stability of the transformer heat sink and prevent damage to the heat sink.

[0005] To achieve the above objectives, the present invention proposes an oil-immersed transformer with a pull-type heat sink, comprising an oil tank, heat sinks, connecting seats, a pull member, a support assembly, a first fastener, and a second fastener. The sidewall of the oil tank is provided with a plurality of heat sinks arranged parallel to each other and at equal intervals. Each end of the sidewall of the oil tank used for mounting the heat sinks is provided with one connecting seat. The support assembly comprises a first plate and a second plate perpendicular to each other, and two mounting blocks respectively perpendicularly disposed at both ends of the first plate. The first plate abuts against the bottom wall of the heat sink; the second plate abuts against the sidewall of the heat sink; a connecting block is rotatably connected to the end of each mounting block facing away from the first plate; each connecting block corresponds one-to-one with a connecting seat; one end of the pull member is connected to the connecting seat via the first fastener, and the other end of the pull member is connected to the corresponding connecting block via the second fastener.

[0006] Preferably, the support assembly further includes several partitions, one end of which is vertically connected to the first plate and the other end of which is vertically connected to the second plate; two partitions spaced at a preset distance to form a slot constitute one partition group; each partition group is equally spaced; the heat sink corresponds one-to-one with the slot, and the bottom of the heat sink is embedded in the corresponding slot.

[0007] Preferably, the connecting block includes a connecting block body and a connecting rod perpendicularly connected to the side wall of the connecting block body; one end of the connecting rod away from the connecting block body is rotatably connected to the mounting block, and the connecting rod is perpendicular to the mounting block; a connecting hole is provided through the middle of the connecting block body, and the connecting hole is used to connect one end of the pulling member.

[0008] Preferably, a rolling bearing is embedded at the end of the mounting block opposite to the first plate; the end of the connecting rod away from the body of the connecting block is connected to the rolling bearing.

[0009] Preferably, the pulling member is a pull rod; the first fastener includes a bolt and a first nut that can be connected; the second fastener includes a second nut; one end of the pulling member is provided with a first through hole, the axis of the first through hole being perpendicular to the axis of the pulling member; the other end of the pulling member is provided with a first external thread that can be connected with the second nut; the bolt passes through the connecting seat and the first through hole and connects to the first nut to connect one end of the pulling member to the connecting seat; the other end of the pulling member passes through the connecting hole and connects to the second nut to connect the other end of the pulling member to the connecting block.

[0010] Preferably, the pulling member is parallel to the heat sink.

[0011] Preferably, the support assembly further includes a support rod; the bottom wall of the first plate is provided with a mounting plate; a second through hole is provided through the middle of the mounting plate; the side wall of the oil tank for mounting the heat sink is also provided with an insertion groove; the opening of the insertion groove is directly opposite the second through hole; the support rod passes through the second through hole and extends into the insertion groove.

[0012] Preferably, the second through hole is provided with an internal thread; one end of the support rod is provided with a second external thread that engages with the internal thread; the support rod is threadedly connected to the mounting plate, and the end of the support rod away from the second external thread is inserted into the insertion groove.

[0013] Preferably, a knob is provided at one end of the second external thread of the support rod.

[0014] Preferably, the support rod is parallel to the first plate.

[0015] In this invention, two connecting seats are symmetrically arranged at both ends of the side wall of the oil tank. The support assembly is located at the bottom of the heat sink. One end of the pulling member is connected to the connecting seat, and the other end is connected to the support assembly, thereby pulling the support assembly to support the heat sink and ensure its operational stability, preventing damage due to its large size. The connecting block is rotatably connected to the mounting block, and one end of the pulling member is connected to the connecting block. Therefore, when installing the pulling member, the connecting block can be rotated to an easy-to-install angle so that one end of the pulling member connects to the connecting block. Then, the connecting block is rotated to connect the pulling member to the connecting seat, facilitating connection to the oil tank and improving installation convenience. In summary, the technical solution proposed in this invention is simple and practical, improving the stability of the transformer heat sink and preventing damage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a top view of the oil-immersed transformer with a pull-type heat sink according to the present invention.

[0018] Figure 2 This is a front view structural schematic diagram of the oil-immersed transformer with a pull-type heat sink according to this utility model.

[0019] Figure 3 This is a schematic diagram of the support assembly for the oil-immersed transformer with a pull-type heat sink according to this utility model.

[0020] Explanation of icon numbers:

[0021] 1-Oil tank; 2-Heat sink; 3-Connecting seat; 4-Pull-out component; 41-First external thread; 5-Support assembly; 51-First plate; 52-Second plate; 53-Mounting block; 54-Baffle; 55-Slot; 56-Mounting plate; 6-Connecting block; 61-Connecting hole; 7-First fastener; 8-Second fastener; 9-Insertion slot; 10-Support rod; 101-Second external thread; 102-Knob.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes an oil-immersed transformer with a pull-type heat sink.

[0029] Please refer to Figures 1 to 3The oil-immersed transformer with a pull-type heat sink includes an oil tank 1, heat sinks 2, connecting seats 3, a pull member 4, a support assembly 5, a first fastener 7, and a second fastener 8. The sidewall of the oil tank 1 is provided with a plurality of parallel and equally spaced heat sinks 2. Each end of the sidewall of the oil tank 1 used for mounting the heat sinks 2 is provided with a connecting seat 3. The support assembly 5 includes a first plate 51 and a second plate 52 perpendicular to each other, and two mounting blocks 53 perpendicularly disposed at both ends of the first plate 51. The first plate 51 abuts against the bottom wall of the heat sink 2; the second plate 52 abuts against the sidewall of the heat sink 2. A connecting block 6 is rotatably connected to the end of each mounting block 53 facing away from the first plate 51. The connecting blocks 6 correspond one-to-one with the connecting seats 3. One end of the pull member 4 is connected to the connecting seat 3 via the first fastener 7, and the other end of the pull member 4 is connected to the corresponding connecting block 6 via the second fastener 8.

[0030] In the technical solution of this utility model, two connecting seats 3 are symmetrically arranged at both ends of the side wall of the oil tank 1. The support assembly 5 is disposed at the bottom of the heat sink 2. One end of the pulling member 4 is connected to the connecting seat 3, and the other end is connected to the support assembly 5, thereby pulling the support assembly 5 to support the heat sink 2, thus ensuring the stability of the heat sink 2 during operation and preventing the heat sink 2 from being easily damaged due to its large size. The connecting block 6 is rotatably connected to the mounting block 53, and one end of the pulling member 4 is connected to the connecting block 6. Therefore, when installing the pulling member 4, the connecting block 6 can be rotated to an angle that is easy to install, so that one end of the pulling member 4 is connected to the connecting block 6. Then, the connecting block 6 is rotated to connect the pulling member 4 to the connecting seat 3, thereby facilitating connection with the oil tank 3 and improving installation convenience. In summary, the technical solution proposed by this utility model is simple and practical, and can improve the stability of the transformer heat sink and prevent damage to the heat sink.

[0031] Specifically, the connecting seat 3 is connected to the side wall of the oil tank 1 by welding or bolting, and several heat sinks 2 are located between two connecting seats 3; the connecting seat 3 can be a lifting lug or a support, and in this embodiment, the connecting seat 3 is a lifting lug; the pulling member 4 can be a pull rod or a rope, and in this embodiment, the pulling member 4 is a pull rod; the first plate 51 and the second plate 52 are both rectangular plates, and the mounting block 53 is a rectangular block.

[0032] Furthermore, the edges of the first plate 51, the second plate 52, the mounting block 53, and the connecting block 6 are all chamfered.

[0033] Preferably, the support component 5 further includes a plurality of partitions 54, one end of which is vertically connected to the first plate 51 and the other end of which is vertically connected to the second plate 52; two partitions 54 spaced at a predetermined distance to form a slot 55 constitute one partition group; each partition group is equally spaced; the heat sink 2 corresponds one-to-one with the slot 55, and the bottom of the heat sink 2 is embedded in the corresponding slot 55.

[0034] The slot 55 is used to further secure the heat sink 2 to prevent it from shaking. Specifically, the preset distance is the bottom width of the heat sink; the height of the partition 54 is less than the height of the second plate 52. In this embodiment, the height of the partition 54 is 2 cm.

[0035] Preferably, the connecting block 6 includes a connecting block body and a connecting rod perpendicularly connected to the side wall of the connecting block body; one end of the connecting rod away from the connecting block body is rotatably connected to the mounting block 53, and the connecting rod is perpendicular to the mounting block 53; a connecting hole 61 is provided through the middle of the connecting block body, and the connecting hole 61 is used to connect one end of the pulling member 4.

[0036] Specifically, the connecting block body is a rectangular block; the connecting hole 61 is opened in the middle of the connecting block body; the diameter of the connecting hole 61 is larger than the diameter of the pulling member 4, so that the pulling member 4 can pass through the connecting hole 61 and connect with the second fastener 8; the axis of the connecting rod is parallel to the first plate 51.

[0037] Preferably, a rolling bearing is embedded at the end of the mounting block 53 opposite to the first plate 51; the end of the connecting rod away from the connecting block body is connected to the rolling bearing.

[0038] The connecting rod is connected to the rolling bearing to improve the rotational flexibility of the connecting block 6. Specifically, the rolling bearing is fixed in the embedding groove of the mounting block 53, and the connecting rod is fixedly connected to the inner ring of the bearing.

[0039] Preferably, the pulling member 4 is a pull rod; the first fastener 7 includes a bolt and a first nut that can be connected; the second fastener 8 includes a second nut; one end of the pulling member 4 is provided with a first through hole, the axis of the first through hole being perpendicular to the axis of the pulling member 4; the other end of the pulling member 4 is provided with a first external thread that can be connected with the second nut; the bolt passes through the connecting seat 3 and the first through hole and connects to the first nut to connect one end of the pulling member 4 to the connecting seat 3; the other end of the pulling member 4 passes through the connecting hole 61 and connects to the second nut to connect the other end of the pulling member 4 to the connecting block 6.

[0040] Specifically, the pulling member 4 is a round pull rod; the bolt passes through the connecting seat 3 and the first through hole in sequence and is connected to the first nut, and the first nut abuts against the pulling member 4; the other end of the pulling member 4 passes through the connecting hole 61 and is connected to the second nut, and the second nut abuts against the connecting block 6.

[0041] Furthermore, a connecting plate is provided at the end of the pulling member 4 away from the first external thread, the first through hole is opened in the connecting plate, and the connecting plate can fit and contact the connecting seat 3.

[0042] Preferably, the pull member 4 is parallel to the heat sink 2. This arrangement allows the other end of the pull member 4 to be easily connected to the connecting seat 3 by rotating the connecting block 6 after one end of the pull member 4 is connected to the connecting block 6. This not only improves the pulling force of the pull member 4 but also enhances its aesthetics.

[0043] Preferably, the support assembly further includes a support rod 10; the bottom wall of the first plate 51 is provided with a mounting plate 56; a second through hole is provided through the middle of the mounting plate 56; the side wall of the oil tank 1 for setting the heat sink 2 is also provided with an insertion groove 9; the opening of the insertion groove 9 is directly opposite to the second through hole; the support rod 10 passes through the second through hole and extends into the insertion groove 9.

[0044] The support rod 10 supports the bottom of the first plate 51 to further improve the stability of the heat sink 2. Specifically, the support rod 10 is perpendicular to the side wall of the oil tank 1. In this embodiment, the mounting plate 56 is disposed in the middle of the bottom wall of the first plate 51; the insertion slot 9 is located on the perpendicular bisector of the line connecting the two connecting seats 3.

[0045] Furthermore, there are multiple mounting plates 56, support rods 10, and insertion slots 9, and each mounting plate 56, support rod 10, and insertion slot 9 corresponds to another; the mounting plates 56 are evenly distributed along the length direction of the first plate 51; and the multiple support rods 10 are parallel to each other.

[0046] Preferably, the second through hole is provided with an internal thread; one end of the support rod 10 is provided with a second external thread that engages with the internal thread; the support rod 10 is threadedly connected to the mounting plate 56, and the end of the support rod 10 away from the second external thread is inserted into the insertion groove 9.

[0047] The threaded connection between the support rod 10 and the mounting plate 56 can further improve the stability of the support rod 10, thereby improving the support ability of the support rod 10 to support the first plate 51, and thus ensuring the stability of the heat sink 1.

[0048] Preferably, a knob 102 is provided at one end of the support rod 10 where the second external thread is located. The support rod 10 is threadedly connected to the mounting plate 56 by turning the knob 102. Specifically, the knob 102 is a cross-shaped knob or a star-shaped knob.

[0049] Preferably, the support rod 10 is parallel to the first plate 51. Parallelism of the support rod 10 to the first plate 51 facilitates insertion of the support rod 10 into the insertion slot 9 while ensuring the support rod 10's ability to support the first plate 51.

[0050] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An oil immersed transformer of the pull type finned radiator, characterized in that, The oil tank (1), the fin (2), the connecting seat (3), the pulling piece (4), the support assembly (5), the first fastener (7) and the second fastener (8) are included; the side wall of the oil tank (1) is provided with a plurality of parallel and equidistantly arranged fins (2); the two ends of the side wall of the oil tank (1) for arranging the fins (2) are each provided with one connecting seat (3); the support assembly (5) includes a first plate (51) and a second plate (52) perpendicular to each other, and two mounting blocks (53) vertically arranged at the two ends of the first plate (51) respectively; the first plate (51) is used for abutting against the bottom wall of the fin (2); the second plate (52) is used for abutting against the side wall of the fin (2); one end of the mounting block (53) away from the first plate (51) is rotatably connected with a connecting block (6); the connecting block (6) corresponds to the connecting seat (3) one by one; one end of the pulling piece (4) is connected to the connecting seat (3) through the first fastener (7), and the other end of the pulling piece (4) is connected to the corresponding connecting block (6) through the second fastener (8).

2. The oil immersed transformer with pull-type radiating fins according to claim 1, characterized in that, The support assembly (5) further includes a plurality of partitions (54), one end of the partition (54) is vertically connected to the first plate (51), and the other end of the partition (54) is vertically connected to the second plate (52); two partitions (54) spaced apart by a predetermined distance to form a clamping groove (55) form a partition group; each partition group is equidistantly arranged; the fin (2) corresponds to the clamping groove (55) one by one, and the bottom of the fin (2) is embedded in the corresponding clamping groove (55).

3. The oil immersed transformer with pull-type radiating fins according to claim 1, characterized in that, The connecting block (6) includes a connecting block body and a connecting rod vertically connected to the side wall of the connecting block body; one end of the connecting rod away from the connecting block body is rotatably connected to the mounting block (53), and the connecting rod is perpendicular to the mounting block (53); a connecting hole (61) is formed in the middle of the connecting block body, and the connecting hole (61) is used for connecting one end of the pulling piece (4).

4. The oil immersed transformer with pull-type radiating fins according to claim 3, characterized in that, One end of the mounting block (53) away from the first plate (51) is embedded with a rolling bearing; one end of the connecting rod away from the connecting block body is connected to the rolling bearing.

5. The oil immersed transformer with pull-type radiating fins according to claim 3, characterized in that, The pulling piece (4) is a pull rod; the first fastener (7) includes a bolt and a first nut capable of being connected; the second fastener (8) includes a second nut; one end of the pulling piece (4) is provided with a first through hole, and the axis of the first through hole is perpendicular to the axis of the pulling piece (4); the other end of the pulling piece (4) is provided with a first external thread capable of being connected with the second nut; the bolt passes through the connecting seat (3) and the first through hole and is connected with the first nut, so that one end of the pulling piece (4) is connected to the connecting seat (3); the other end of the pulling piece (4) passes through the connecting hole (61) and is connected with the second nut, so that the other end of the pulling piece (4) is connected to the connecting block (6).

6. The oil immersed transformer with pull-type radiating fins according to claim 5, characterized in that, The pulling member (4) is parallel to the heat dissipation fin (2).

7. The oil immersed transformer with pull-type radiating fins according to claim 1, characterized in that, The support assembly further comprises a support rod (10); a bottom wall of the first plate (51) is provided with a mounting plate (56); a middle portion of the mounting plate (56) is provided with a second through hole; a side wall of the oil tank (1) for arranging the heat dissipation fin (2) is further provided with an insertion slot (9); an opening of the insertion slot (9) is opposite to the second through hole; the support rod (10) passes through the second through hole and extends into the insertion slot (9).

8. The oil immersed transformer with pull-type radiating fins according to claim 7, characterized in that, An inner thread is arranged in the second through hole; one end of the support rod (10) is provided with a second outer thread matched with the inner thread; the support rod (10) is threadedly connected with the mounting plate (56), and an end of the support rod (10) away from the second outer thread is inserted into the insertion slot (9).

9. The oil immersed transformer with pull-type radiating fins according to claim 8, characterized in that, One end of the support rod (10) provided with the second outer thread is provided with a knob (102).

10. The oil immersed transformer with pull-type radiating fins according to claim 7, characterized in that, The support rod (10) is parallel to the first plate (51).

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