Mold panel and dry-type transformer coil pouring mold

Abstract

The utility model discloses a die panel and a die for pouring a dry-type transformer coil. The mold panel comprises a panel main body, the panel main body is provided with a plurality of through holes, and the through holes are used for the corresponding first wiring terminals or second wiring terminals to penetrate through; the first wiring terminal mold comprises a first connecting plate and a plurality of first terminal covers arranged on the first connecting plate, the plurality of first terminal covers are arranged according to the arrangement mode of first wiring terminals, each first terminal cover is provided with a first mold cavity, the first connecting plate is connected with the panel main body through a fixing piece, and the first mold cavities are communicated with the corresponding through holes; the second wiring terminal die comprises a second connecting plate and a second terminal cover arranged on the second connecting plate, the second terminal cover is provided with a second die cavity, the second connecting plate is connected with the panel body through a fixing piece, and the second die cavity is communicated with the corresponding through hole. By the adoption of the mold panel, purchasing of casting mold accessories is facilitated, the manufacturing period of the mold panel is shortened, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to a mold panel and a dry-type transformer coil casting mold. Background Art

[0002] After the dry-type transformer coil is wound, it needs to be molded and cast. In the prior art, a terminal block mold is welded onto the mold panel to form a cavity for the terminal blocks. Consequently, these mold panels suffer from long production cycles and low production efficiency. Furthermore, the terminal block mold may experience weld leaks during welding, potentially leading to potting compound leakage during the casting process. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention proposes a mold panel to shorten the mold panel production cycle and improve production efficiency.

[0004] The utility model also provides a dry-type transformer coil casting mold adopting the mold panel.

[0005] According to the mold panel of the embodiment of the first aspect of the present invention, it is used for a dry-type transformer coil casting mold, and the mold panel includes a panel body, a first terminal mold and a second terminal mold. The panel body is provided with a plurality of through holes, and the plurality of through holes correspond one-to-one to the first terminal and the second terminal of the dry-type transformer coil at the position of the panel body, and the through holes are used for the corresponding first terminal or the second terminal to pass through; the first terminal mold includes a first connecting plate and a plurality of first terminal covers provided on the first connecting plate, and the plurality of first terminal covers are arranged according to the arrangement of the first terminal, and each first terminal cover is provided with a first mold cavity, and the first connecting plate is connected to the panel body through a fixing member, and the first mold cavity is communicated with the corresponding through hole to accommodate the corresponding first terminal; the second terminal mold includes a second connecting plate and a second terminal cover provided on the second connecting plate, and the second terminal cover is provided with a second mold cavity, and the second connecting plate is connected to the panel body through a fixing member, and the second mold cavity is communicated with the corresponding through hole to accommodate the corresponding second terminal.

[0006] According to the mold panel of the embodiment of the present invention, there are at least the following beneficial effects: the terminal blocks of the dry-type transformer coil are usually of several fixed types. The present invention makes the first terminal block mold and the second terminal block mold of the mold panel into standard parts according to the types of the terminal blocks of the dry-type transformer coil, and processes through holes corresponding to the first terminal block and the second terminal block at corresponding positions of the mold panel, which facilitates the procurement of casting mold accessories, shortens the mold panel production cycle, improves production efficiency, reduces the production cost of the casting mold, and correspondingly reduces the production cost of the dry-type transformer coil.

[0007] According to some embodiments of the present invention, the first connecting plate is provided with a first connecting hole, and a first threaded hole is provided at a corresponding position of the panel body. The first connecting plate is connected to the panel body via a fixing member that passes through the connecting hole and is threadedly connected to the first threaded hole.

[0008] According to some embodiments of the present invention, the second connecting plate is provided with a second connecting hole, and a second threaded hole is provided at a corresponding position of the panel body. The second connecting plate is connected to the panel body through a fixing member that passes through the connecting hole and is threadedly connected to the second threaded hole.

[0009] According to some embodiments of the present invention, a first sealing member is provided between the first connecting plate and the panel body.

[0010] According to some embodiments of the present invention, the first connecting plate is provided with a first sealing groove along the circumference of the first mold cavity, the corresponding panel body around the through hole is provided with a second sealing groove, and the first sealing member is provided in the corresponding first sealing groove and second sealing groove.

[0011] According to some embodiments of the present invention, a second sealing member is provided between the second connecting plate and the panel body.

[0012] According to some embodiments of the present invention, the second connecting plate is provided with a third sealing groove along the circumference of the second mold cavity, the corresponding panel body around the through hole is provided with a fourth sealing groove, and the second sealing member is provided in the corresponding third sealing groove and fourth sealing groove.

[0013] According to some embodiments of the present invention, two second wiring terminal dies are provided, the two second wiring terminal dies have the same structure, and are respectively located on the upper and lower sides of the first wiring terminal dies.

[0014] According to some embodiments of the present invention, exhaust holes are provided on the top of the first terminal cover and the top of the second terminal cover.

[0015] A dry-type transformer coil casting mold according to an embodiment of the second aspect of the present utility model includes a mold body and any one of the mold panels described above.

[0016] The dry-type transformer coil casting mold according to the embodiment of the present invention has at least the following beneficial effects: the casting mold of the present invention adopts the above-mentioned mold panel, which facilitates the procurement of casting mold accessories, shortens the mold panel production cycle, improves production efficiency, reduces the production cost of the casting mold, and correspondingly reduces the production cost of the dry-type transformer coil.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a three-dimensional schematic diagram of a mold panel according to an embodiment of the present invention;

[0020] Figure 2 This is a three-dimensional schematic diagram of a panel body of a mold panel according to an embodiment of the present invention;

[0021] Figure 3 This is a three-dimensional schematic diagram of a second terminal mold of a mold panel according to an embodiment of the present invention;

[0022] Figure 4 This is a three-dimensional schematic diagram of a first terminal mold of a mold panel according to an embodiment of the present invention;

[0023] Figure 5 This is a three-dimensional schematic diagram of a dry-type transformer coil casting mold according to an embodiment of the present utility model;

[0024] Figure 6 This is a three-dimensional exploded schematic diagram of a dry-type transformer coil casting mold according to an embodiment of the present utility model.

[0025] Figure Number:

[0026] Dry-type transformer coil casting mold 10, mold body 110;

[0027] Mold panel 20, panel body 200, through hole 210, first threaded hole 220, second threaded hole 230, first sealing member 240, second sealing member 250, fixing member 260, second sealing groove 270, fourth sealing groove 280;

[0028] A first terminal mold 300, a first connection plate 310, a first terminal cover 320, a first mold cavity 330, a first connection hole 340, a first sealing groove 350, and an exhaust hole 360;

[0029] A second terminal mold 400, a second connection plate 410, a second terminal cover 420, a second mold cavity 430, a second connection hole 440, and a third sealing groove 450;

[0030] A first connecting terminal 500 and a second connecting terminal 600 . DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] In the related art, the dry-type transformer coil usually has a first terminal group and two second terminals. The first terminal group usually has six first terminals, and the two second terminals are arranged on both sides of the first terminal group. The terminals of the dry-type transformer coil are usually of several fixed types, and the diameter and height of each type of terminal are certain.

[0036] In view of this, refer to Figure 1The embodiment of the present invention provides a mold panel 20, which is used for a dry-type transformer coil casting mold 10. The mold panel 20 includes a panel body 200, a first terminal mold 300 and a second terminal mold 400.

[0037] Specifically, refer to Figure 2 The panel body 200 is provided with a plurality of through-holes 210. The positions of the through-holes 210 on the panel body 200 correspond one-to-one with the first and second terminals 500, 600 of the dry-type transformer coil. In other words, the positions of the through-holes 210 correspond to the positions of the first and second terminals 500, 600 of the dry-type transformer coil. The through-holes 210 are divided into three groups: one group of through-holes 210 has six through-holes 210, and the other two groups of through-holes 210 each have one through-hole 210. The through-holes 210 on the panel body 200 are configured to accommodate the corresponding first and second terminals 500, 600. The diameter of the through-holes 210 is larger than that of the corresponding first or second terminal 500, 600, thereby forming a gap between the first or second terminal 500, 600, and the sidewalls of the through-holes 210.

[0038] Reference Figure 1 、 Figure 4 The first terminal mold 300 includes a first connecting plate 310, which has a connecting end surface connected to the panel body 200. The first connecting plate 310 is connected to the panel body 200 through a fixing member 260. A plurality of first terminal covers 320 are provided on the first connecting plate 310, and the first terminal covers 320 protrude from the first connecting plate 310. In this embodiment, there are six first terminal covers 320, and the arrangement of the six first terminal covers 320 is the same as the arrangement of the corresponding six through holes 210, so that the positions of the six first terminal covers 320 correspond to the positions of six through holes 210 on the panel body 200. Each first terminal cover 320 is provided with a first mold cavity 330, and the first mold cavity 330 is connected to the corresponding through hole 210. Each first mold cavity 330 is used to accommodate the corresponding first terminal 500.

[0039] Reference Figure 1 、 Figure 3The second terminal mold 400 includes a second connecting plate 410, the second connecting plate 410 has a connecting end surface connected to the panel body 200, the second connecting plate 410 is connected to the panel body 200 through a fixing member 260, and a second terminal cover 420 is provided on the second connecting plate 410. The second terminal cover 420 protrudes from the second connecting plate 410, and the position of the second terminal cover 420 corresponds to the position of one of the through holes 210 on the panel body 200. The second terminal cover 420 is provided with a second mold cavity 430, and the second mold cavity 430 is connected to the corresponding through hole 210. The second mold cavity 430 is used to accommodate the corresponding second terminal 600.

[0040] When the dry-type transformer coil is cast, the first terminal 500 and the second terminal 600 are inserted into the corresponding through-hole 210, and the first terminal 500 or the second terminal 600 is accommodated in the corresponding first mold cavity 330 or the second mold cavity 430. The potting glue can be poured into the corresponding first mold cavity 330 or the second mold cavity 430 through the gap between the first terminal 500 or the second terminal 600 and the side wall of the through-hole 210, thereby forming a glue layer around the first terminal 500 or the second terminal 600.

[0041] The utility model manufactures the first terminal mold 300 and the second terminal mold 400 of the mold panel 20 into standard parts according to the type of terminal of the dry-type transformer coil, and processes through holes 210 corresponding to the first terminal 500 and the second terminal 600 at corresponding positions of the mold panel 20, thereby facilitating the procurement of casting mold accessories, shortening the production cycle of the mold panel 20, improving production efficiency, reducing the production cost of the casting mold, and correspondingly reducing the production cost of the dry-type transformer coil.

[0042] Reference Figure 2 、 Figure 4 In some embodiments, the first connecting plate 310 is provided with a first connecting hole 340, and a first threaded hole 220 is provided at a corresponding position of the panel body 200. The first connecting plate 310 is connected to the panel body 200 through a fixing member 260 that passes through the connecting hole and is threadedly connected to the first threaded hole 220. The fixing member 260 can be a bolt, etc.

[0043] Reference Figure 2 、 Figure 3 In some embodiments, the second connecting plate 410 is provided with a second connecting hole 440, and a second threaded hole 230 is provided at a corresponding position of the panel body 200. The second connecting plate 410 is connected to the panel body 200 through a fixing member 260 that passes through the connecting hole and is threadedly connected to the second threaded hole 230. The fixing member 260 can be a bolt, etc.

[0044] It can be understood that a first seal 240 is provided between the first connecting plate 310 and the panel body 200, and a second seal 250 is provided between the second connecting plate 410 and the panel body 200. After the mold panel 20 is assembled to the dry-type transformer coil casting mold 10, during the casting process of the dry-type transformer coil, the first seal 240 and the second seal 250 can prevent the potting glue from leaking from the connection between the first terminal mold 300 and the second terminal mold 400 and the panel body 200.

[0045] Reference Figure 2 、 Figure 4 In some embodiments, the first connecting plate 310 is provided with a first sealing groove 350 along the circumference of the first mold cavity 330, the panel body 200 around the corresponding through hole 210 is provided with a second sealing groove 270, and the first sealing member 240 is provided in the corresponding first sealing groove 350 and second sealing groove 270.

[0046] Reference Figure 2 、 Figure 3 The second connecting plate 410 is provided with a third sealing groove 450 along the circumference of the second mold cavity 430 , and the panel body 200 around the corresponding through hole 210 is provided with a fourth sealing groove 280 , and the second sealing member 250 is provided in the corresponding third sealing groove 450 and fourth sealing groove 280 .

[0047] By directly setting the sealing groove on the connecting plate around the mold cavity and the panel body 200 around the through hole 210, the sealing groove can be processed simultaneously during the processing of the mold cavity and the through hole 210, thereby simplifying the processing steps and saving processing time.

[0048] It should be noted that the sealing grooves can be positioned in other ways to similarly prevent potting compound from leaking from the connection between the first and second terminal dies 300, 400, and the panel body 200. For example, a first sealing groove 350 can be provided along the circumference of the surface of the first connecting plate 310, with the plurality of terminal covers distributed within the area of ​​the first connecting plate 310 defined by the first sealing groove 350. Accordingly, a second sealing groove 270 can be provided at a corresponding position on the panel body 200, with the plurality of through-holes 210 distributed within the area of ​​the panel body 200 defined by the second sealing groove 270.

[0049] According to some embodiments of the present invention, two second terminal molds 400 are provided. The two second terminal molds 400 have the same structure and are respectively located on the upper and lower sides of the first terminal mold 300 .

[0050] Reference Figure 2 、 Figure 3 、 Figure 4In some embodiments, exhaust holes 360 are provided on the top of the first terminal cover 320 and the top of the second terminal cover 420. During the casting process of the dry-type transformer coil, the air at the terminal position in the casting mold can be discharged from the exhaust holes 360, thereby avoiding the formation of air holes in the potting layer at the terminal, avoiding the occurrence of defective products, and improving the casting quality of the dry-type transformer coil.

[0051] Reference Figure 5 、 Figure 6 The dry-type transformer coil casting mold 10 provided in an embodiment of the present invention includes a mold body 110 and a mold panel 20 as described above. The casting mold of the present invention utilizes the mold panel 20 described above, which facilitates the procurement of casting mold components, shortens the mold panel 20 production cycle, improves production efficiency, reduces the casting mold production cost, and correspondingly reduces the production cost of the dry-type transformer coil.

[0052] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A mold panel for a dry-type transformer coil casting mold, characterized in that: include: A panel body, wherein the panel body is provided with a plurality of through holes, wherein the plurality of through holes correspond one-to-one to the first wiring terminal and the second wiring terminal of the dry-type transformer coil at positions on the panel body, and the through holes are used for passing the corresponding first wiring terminal or the corresponding second wiring terminal; a first terminal mold, comprising a first connecting plate and a plurality of first terminal covers provided on the first connecting plate, wherein the plurality of first terminal covers are arranged in an arrangement pattern of the first terminal blocks, each of the first terminal covers being provided with a first mold cavity, the first connecting plate being connected to the panel body via a fixing member, and the first mold cavity being in communication with the corresponding through hole to accommodate the corresponding first terminal block; The second terminal mold includes a second connecting plate and a second terminal cover arranged on the second connecting plate. The second terminal cover is provided with a second mold cavity. The second connecting plate is connected to the panel body through a fixing member. The second mold cavity is connected to the corresponding through hole to accommodate the corresponding second terminal.

2. The mold panel according to claim 1, characterized in that The first connecting plate is provided with a first connecting hole, and a first threaded hole is provided at a corresponding position of the panel body. The first connecting plate is connected to the panel body via a fixing member which passes through the connecting hole and is threadedly connected to the first threaded hole.

3. The mold panel according to claim 1, characterized in that The second connecting plate is provided with a second connecting hole, and a second threaded hole is provided at a corresponding position of the panel body. The second connecting plate is connected to the panel body via a fixing member which passes through the connecting hole and is threadedly connected to the second threaded hole.

4. The mold panel according to claim 1, characterized in that A first sealing member is provided between the first connecting plate and the panel body.

5. The mold panel according to claim 4, characterized in that The first connecting plate is provided with a first sealing groove along the circumference of the first mold cavity, the panel body around the corresponding through hole is provided with a second sealing groove, and the first sealing member is provided in the corresponding first and second sealing grooves.

6. The mold panel according to claim 1, characterized in that A second sealing member is provided between the second connecting plate and the panel body.

7. The mold panel according to claim 6, characterized in that The second connecting plate is provided with a third sealing groove along the circumference of the second mold cavity, the panel body around the corresponding through hole is provided with a fourth sealing groove, and the second sealing member is provided in the corresponding third sealing groove and fourth sealing groove.

8. The mold panel according to claim 1, characterized in that Two second wiring terminal modules are provided. The two second wiring terminal modules have the same structure and are respectively located at the upper and lower sides of the first wiring terminal module.

9. The mold panel according to claim 1, characterized in that The top of the first terminal cover and the top of the second terminal cover are both provided with exhaust holes.

10. Dry-type transformer coil casting mold, characterized in that: The invention comprises a mold body and a mold panel according to any one of claims 1 to 9.

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