Insulation cushion block for dry-type transformer

Abstract

The utility model relates to an insulating cushion block for a dry-type transformer, which comprises a cushion block body, a first heightening block and a second heightening block, the length direction of the cushion block body extends left and right, the first heightening block is positioned below the cushion block body, the second heightening block is positioned below the first heightening block, the first heightening block is detachably connected with the cushion block body, and the second heightening block is detachably connected with the cushion block body. And the first heightening block is detachably connected with the second heightening block. By the adoption of the scheme, the first heightening block is installed below the cushion block body, so that the overall height of the cushion block body is increased, and more requirements for height change of the cushion block body are met.

Description

Technical Field

[0001] The utility model relates to an insulating fitting for a dry-type transformer, in particular to an insulating cushion block for a dry-type transformer. Background Art

[0002] Dry-type transformers are widely used in places such as local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Simply put, a dry-type transformer refers to a transformer in which the iron core and windings are not immersed in insulating oil. The cooling methods are divided into natural air cooling and forced air cooling. When cooled by natural air, the transformer can operate continuously for a long time at the rated capacity. When forced air cooled, the output capacity of the transformer can be increased by 50%. The insulating cushion block for a dry-type transformer plays a very important role inside the transformer, such as carrying and positioning the high- and low-voltage coils inside the transformer, helping to compress the coils, preventing current from leaking from the coils to the metal structure or other components of the transformer, and helping to maintain the integrity and stability of the internal structure of the transformer.

[0003] Traditional insulating cushion blocks often have fixed sizes and shapes, which means that once installed, it is very difficult to adjust their positions or heights, which may cause difficulties during installation or maintenance. And due to the inability to adjust flexibly, traditional insulating cushion blocks may not provide the most suitable support for the coils, thus increasing the risk of electrical faults.

[0004] Therefore, how to achieve adjustable height of the insulating cushion block has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an insulating cushion block for a dry-type transformer which realizes increasing the overall height of the cushion block body by installing a first heightening block below the cushion block body, thereby meeting more requirements for changing the height of the cushion block body.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: including a cushion block body, the length direction of the cushion block body extends left and right, and further includes a first heightening block located below the cushion block body and a second heightening block located below the first heightening block. The first heightening block is detachably connected to the cushion block body, and the first heightening block is detachably connected to the second heightening block.

[0007] The utility model is further arranged as: the first heightening block protrudes upwards with a plurality of positioning insertion blocks, the length direction of each positioning insertion block extends up and down and is arranged at intervals along the left and right directions of the first heightening block, and the cushion block body is provided with positioning slots corresponding to the positioning insertion blocks.

[0008] The utility model is further arranged as: each of the positioning insertion blocks includes a positioning section at the top, and each positioning section is inclined from right to left from top to bottom.

[0009] The utility model is further arranged as follows: A plurality of positioning plates are rotatably installed on the cushion block body. Loading grooves are arranged on the first heightening block at the rotation tracks of the positioning plates. The upper ends of the loading grooves are all open. Installation insertion blocks detachably connected to the corresponding positioning plates are prominently arranged in the loading grooves of the first heightening block. First magnets are arranged on each positioning plate, and second magnets corresponding to the first magnets are arranged on the cushion block body.

[0010] The utility model is further arranged as follows: Each installation insertion block is made of a material that is easy to deform and is provided with an insertion section and a limiting section. Each insertion section is fixedly connected to the first heightening block. The height of each limiting section is higher than that of the corresponding insertion section, and the positioning plates are provided with limiting grooves corresponding to the insertion sections. Each limiting section is inserted into the corresponding positioning plate and abuts against the positioning plates. The width of each limiting groove is greater than the width of the insertion section and less than the width of the limiting section.

[0011] The utility model is further arranged as follows: Deformation grooves are arranged on each limiting section.

[0012] The utility model is further arranged as follows: Connecting insertion blocks are prominently arranged at the top corners of the second heightening block. First connection slots corresponding to the connecting insertion blocks are arranged on the first heightening block. Matching slots are recessed inwards on each connecting insertion block. Matching insertion blocks are arranged on the first heightening block at the first connection slots.

[0013] The utility model is further arranged as follows: A plurality of second connection slots are arranged at the bottom of the second heightening block.

[0014] By adopting the above technical scheme, since the first heightening block can be located below the cushion block body and is detachably connected to the cushion block body, and the second heightening block is located below the first heightening block and is detachably connected to the first heightening block. Therefore, when the cushion block body is installed in the dry-type transformer and it is found that the height of the cushion block body is not enough, at this time, the first heightening block is installed and detachably connected to the cushion block body, then the overall height at this time is the sum of the height of the first heightening block and the height of the cushion block body. If the height is still not enough at this time, the second heightening block is installed below the first heightening block, and then the overall height at this time is the sum of the total heights of the first heightening block, the cushion block body and the second heightening block, that is, the overall height is greatly increased, thus better matching the use of the dry-type transformer. Similarly, if the overall height is too high at this time, then by separating the first heightening block from the cushion block body, the first heightening block and the second heightening block can be removed from the cushion block body to reduce the overall height. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0016] Figure 1 Isometric view of the specific embodiment of the present invention;

[0017] Figure 2 Cross-sectional view of the present invention from left to right;

[0018] Figure 3 Cross-sectional view of the present invention from another perspective;

[0019] Figure 4 Exploded view of the present invention when viewed from below;

[0020] Figure 5 Exploded view of the present invention when viewed from the front;

[0021] Figure 6 Is Figure 2 Enlarged view of A in

[0022] Figure 7 Is Figure 3 Enlarged view of B in

[0023] Figure 8 Is Figure 4 Enlarged view of C in

[0024] Figure 9 Is Figure 5 Enlarged view of D in

[0025] In the figure: 1 - spacer body, 11 - positioning slot, 12 - positioning plate, 121 - first magnet, 122 - limiting groove, 13 - second magnet;

[0026] 2 - first heightening block, 21 - positioning insert block, 211 - positioning section, 22 - loading groove, 23 - installation insert block, 231 - inserting section, 232 - limiting section, 2321 - deformation groove, 24 - first connection slot, 241 - mating insert block;

[0027] 3 - second heightening block, 31 - connection insert block, 311 - mating slot, 32 - second connection slot. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] As Figures 1-9 shown, the present utility model discloses an insulating spacer for a dry-type transformer, including a spacer body 1. The length direction of the spacer body 1 extends horizontally. It further includes a first heightening block 2 located below the spacer body 1 and a second heightening block 3 located below the first heightening block 2. The first heightening block 2 is detachably connected to the spacer body 1 by means of bolts, buckles, etc. The first heightening block 2 and the second heightening block 3 are detachably connected by means of bolts, buckles, etc. Since the first heightening block 2 can be located below the spacer body 1 and is detachably connected to the spacer body 1, and the second heightening block 3 is located below the first heightening block 2 and is detachably connected to the first heightening block 2. Therefore, when the spacer body 1 is installed in the dry-type transformer and it is found that the height of the spacer body 1 is insufficient, at this time, the first heightening block 2 is installed and then detachably connected to the spacer body 1, so that the overall height at this time is the sum of the height of the first heightening block 2 and the height of the spacer body 1. If the height is still insufficient at this time, the second heightening block 3 is installed below the first heightening block 2, so that the overall height at this time is the sum of the total heights of the first heightening block 2, the spacer body 1, and the second heightening block 3, that is, the overall height is greatly increased, thus better matching the use of the dry-type transformer. Similarly, if the overall height is too high at this time, then by separating the first heightening block 2 from the spacer body 1, the first heightening block 2 and the second heightening block 3 can be removed from the spacer body 1 to reduce the overall height.

[0030] Among them, a plurality of positioning insertion blocks 21 protrude upward from the first heightening block 2. The length direction of each positioning insertion block 21 extends vertically and is arranged at intervals along the left-right direction of the first heightening block 2. The spacer body 1 is provided with positioning slots 11 corresponding to the positioning insertion blocks 21. Since a plurality of positioning insertion blocks 21 protrude from the first heightening block 2, after the first heightening block 2 is placed below the spacer body 1, at this time, each positioning insertion block 21 will be inserted into the corresponding positioning slot 11 to determine the relative position of the first heightening block 2 and the spacer body 1, thereby facilitating the installation of the first heightening block 2 and the spacer body 1 together.

[0031] Preferably, each of the positioning inserts 21 includes a positioning section 211 at the top. Each positioning section 211 is inclined from right to left in a downward direction from top to bottom. Since each positioning section 211 is located at the top of the corresponding positioning insert 21 and is inclined, each positioning section 211 is shaped with a narrower top and a wider bottom. After aligning each positioning insert 21 with the corresponding positioning slot 11, the top, i.e., the narrowest part, of each positioning section 211 first enters the corresponding positioning slot 11, enabling each positioning section 211 to enter the corresponding positioning slot 11 more smoothly. Thus, each positioning insert 21 is completely located within the corresponding positioning slot 11, determining the positions of the first heightening block 2 and the spacer body 1 and facilitating the determination of the positions of the first heightening block 2 and the spacer body 1.

[0032] Among them, a number of positioning plates 12 are rotatably installed on the spacer body 1. The first heightening block 2 is provided with insertion grooves 22 on the rotation trajectories of the positioning plates 12. The upper ends of the insertion grooves 22 are all open. The first heightening block 2 is provided with installation inserts 23 protruding in the insertion grooves 22 and detachably connected to the corresponding positioning plates 12 by means of bolts, buckles, etc. First magnets 121 are provided on each of the positioning plates 12, and second magnets 13 are provided on the spacer body 1 corresponding to the first magnets 121. 1. Since the first magnets 121 are provided on the positioning plates 12 and the second magnets 13 are provided on the spacer body 1 corresponding to the first magnets 121, when it is not necessary to rotate the positioning plates 12 to connect with the first heightening block 2, the first magnets 121 of the positioning plates 12 will be attracted to the second magnets 13 on the spacer body 1 at this time, so that the positioning plates 12 can be stably located on the spacer body 1 without external force; 2. When it is necessary to install the spacer body 1 and the first heightening block 2 together to increase their overall height, at this time, by moving the positioning plates 12 to turn them downward and into the corresponding insertion grooves 22. When the positioning plates 12 enter the corresponding insertion grooves 22, the installation inserts 23 located in the insertion grooves 22 will be detachably connected to the corresponding positioning plates 12, enabling the positioning plates 12 to be stably connected to the first heightening block 2 and realizing the assembly of the first heightening block 2 and the spacer body 1.

[0033] Among them, each installation insert block 23 is made of a material such as rubber that is prone to deformation, and each is provided with an insertion section 231 and a limiting section 232. Each insertion section 231 is fixedly connected to the first heightening block 2 by means such as welding. The height of each limiting section 232 is higher than that of the corresponding insertion section 231, and each positioning plate 12 is provided with a limiting groove 122 corresponding to the insertion section 231. Each limiting section 232 is inserted into the corresponding positioning plate 12 and abuts against each positioning plate 12. The width of each limiting groove 122 is greater than the width of the insertion section 231 and less than the width of the limiting section 232. After each positioning plate 12 is turned downward and enters the corresponding loading groove 22, it will collide with each installation insert block 23 at this time. Therefore, by manually controlling each positioning plate 12, the limiting section 232 of each installation insert block 23 can be toggled to forcibly cross the corresponding limiting groove 122, so that each installation insert block 23 can cooperate with the corresponding positioning plate 12, and without external force, each limiting section 232 will abut against the corresponding positioning plate 12. Therefore, the first heightening block 2 can be stably installed together with the cushion block body 1.

[0034] Preferably, a deformation groove 2321 is provided on each limiting section 232. Due to the existence of each deformation groove 2321, when the limiting section 232 is toggled to be in the length extension direction of the corresponding insertion section 231, each limiting section 232 can be toggled and deformed more smoothly and thus cross the corresponding limiting groove 122 more smoothly.

[0035] In addition, a connecting insert block 31 is prominently provided at each vertex of the second heightening block 3. The first heightening block 2 is provided with a first connection slot 24 corresponding to each connecting insert block 31. A mating slot 311 is recessed inward on each connecting insert block 31. A mating insert block 241 is provided on the first heightening block 2 at each first connection slot 24. After the second heightening block 3 is installed at the bottom of the first heightening block 2, at this time, each connecting insert block 31 on the second heightening block 3 will enter the corresponding first connection slot 24. Also, because a mating slot 311 is recessed inward on each connecting insert block 31, therefore, the part of each connecting insert block 31 above the corresponding mating slot 311 needs to forcibly cross the mating insert block 241 in the corresponding first connection slot 24 after entering the corresponding first connection slot 24, so as to realize the cooperation between each mating slot 311 and the corresponding mating insert block 241, and make the first heightening block 2 and the second heightening block 3 stably connected together. When it is necessary to separate the second heightening block 3 from the first heightening block 2, a downward force is applied to the second heightening block 3, so that each connecting insert block 31 on the second heightening block 3 will move downward, and the part of each connecting insert block 31 above the corresponding mating slot 311 will forcibly cross the corresponding mating insert block 241 downward, so that the first heightening block 2 and the second heightening block 3 are separated.

[0036] Preferably, a plurality of second connection slots 32 are provided at the bottom of the second height increasing block 3. Due to the provision of the second connection slots 32 at the bottom of the second height increasing block 3, when it is necessary to increase the overall height, a new second height increasing block 3 can be continuously inserted and cooperate with the second height increasing block 3 located below the first height increasing block 2, thereby assembling insulating pads with more different heights.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An insulating spacer for a dry-type transformer, comprising a spacer body, wherein the length direction of the spacer body extends left and right, and is characterized in that: It also includes a first heightened block located below the cushion block body and a second heightened block located below the first heightened block, wherein the first heightened block is detachably connected to the cushion block body, and the first heightened block is detachably connected to the second heightened block.

2. The insulating spacer for a dry-type transformer according to claim 1, characterized in that: The first height increasing block is provided with a plurality of positioning plugs protruding upwards, the length direction of each positioning plug extends up and down and is arranged at intervals along the left and right direction of the first height increasing block, and the cushion block body is provided with a positioning slot corresponding to each positioning plug.

3. The insulating spacer for a dry-type transformer according to claim 2, characterized in that: Each of the positioning plugs comprises a positioning section at the top, and each of the positioning sections is arranged obliquely from top to bottom and from right to left.

4. The insulating spacer for a dry-type transformer according to claim 1, characterized in that: A plurality of positioning plates are rotatably mounted on the cushion block body, and the first height increasing block is provided with a loading slot on the rotation track of each positioning plate, and the upper end of each loading slot is open, and the first height increasing block is provided with a mounting plug-in block detachably connected to the corresponding positioning plate in each loading slot, and each positioning plate is provided with a first magnet, and a second magnet is provided on the cushion block body corresponding to each first magnet.

5. The insulating spacer for a dry-type transformer according to claim 4, characterized in that: Each mounting plug block is made of a material that is easy to deform and is provided with an insertion section and a limiting section. Each insertion section is fixedly connected to the first height increasing block. The height of each limiting section is higher than the corresponding insertion section and each positioning plate is provided with a limiting groove corresponding to the insertion section. Each limiting section is inserted with a corresponding positioning plate and is against each positioning plate. The width of each limiting groove is greater than the width of the insertion section but smaller than the width of the limiting section.

6. The insulating spacer for a dry-type transformer according to claim 5, characterized in that: Each of the limiting segments is provided with a deformation groove.

7. The insulating spacer for a dry-type transformer according to claim 1, characterized in that: The second height-increasing block is provided with a connecting plug-in block protruding from each vertex corner, the first height-increasing block is provided with a first connecting slot corresponding to each connecting plug-in block, each connecting plug-in block is provided with a matching slot recessed inwardly, and the first height-increasing block is provided with a matching plug-in block on each first connecting slot.

8. The insulating spacer for a dry-type transformer according to claim 7, characterized in that: A plurality of second connecting slots are arranged at the bottom of the second height increasing block.

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