A pouring tool for fixing a wiring terminal of a power taking transformer
The casting fixture using positioning frames and positioning bolts solved the problem of precise positioning of the terminals during the casting process of the power take-off transformer, achieving precise positioning and consistent height of the terminals, simplifying the operation process and improving product quality.
Patent Information
- Application Number
- CN202422931756.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-29
AI Technical Summary
During the casting process of existing power-taking transformers, it is difficult to accurately position the wiring terminals, and the hoisting operation is cumbersome and difficult to maintain at the same height.
A casting fixture using a positioning frame and positioning bolts is employed. The terminal blocks are precisely positioned using the positioning seats and bolt holes within the positioning frame, and are further secured with snap-fit components to ensure that the terminal blocks remain in a fixed position and at a consistent height during the casting process.
It achieves precise positioning and height consistency of the terminals, avoids air bubbles affecting the product appearance, simplifies the casting operation, and improves positioning accuracy and efficiency.
Smart Images
Figure CN223612225U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of power taking transformer, especially a pouring tool of power taking transformer wiring terminal fixed. BACKGROUND
[0002] The pouring process of the existing power taking transformer needs to adopt hoisting technology to hoist each wiring terminal, so that each wiring terminal can be formed at the predetermined position after pouring forming. However, the hoisting operation is troublesome, and it is difficult to ensure that each wiring terminal remains at the same height position, and accurate positioning is difficult to achieve. UTILITY MODEL CONTENTS
[0003] The utility model aims at providing a pouring tool of power taking transformer wiring terminal fixed, which has the advantages of accurate positioning of the wiring terminal.
[0004] In order to achieve the above purpose, the solution of the utility model is as follows:
[0005] A pouring tool of power taking transformer wiring terminal fixed, the power taking transformer includes a shell and a plurality of wiring terminals, and the top of the shell is open;
[0006] The pouring tool includes a positioning frame and a plurality of positioning bolts;
[0007] The positioning frame is lapped on the edge of the top opening of the shell, and a plurality of positioning seats corresponding to the number of wiring terminals are arranged on the inner side of the positioning frame; the positioning seat includes a terminal insertion part extending inward and a bolt insertion part protruding upward;
[0008] The terminal insertion part is provided with a terminal insertion hole extending vertically and having an open bottom, and each wiring terminal is inserted and positioned in each terminal insertion hole from bottom to top;
[0009] The bolt insertion part is provided with a bolt hole extending horizontally and having an open outer end, the bolt hole is connected to the terminal insertion hole at the horizontal inner end, the positioning bolt is screwed in the bolt hole, and the inner end of the positioning bolt presses the wiring terminal in the terminal insertion hole.
[0010] Further, the pouring tool further includes two clamping pieces; the two clamping pieces are symmetrically arranged on both sides of the positioning frame, the clamping piece includes a connecting arm and a clamping plate, the upper end of the connecting arm is hinged to the outer side of the positioning frame, the lower end of the connecting arm is connected to the clamping plate perpendicularly, and the clamping plate is buckled to the bottom of the shell by rotating with the connecting arm relative to the positioning frame.
[0011] Further, the upper side of the terminal insertion part has a hollow structure, the hollow structure exposes the upper end of the terminal insertion hole, and the upper end of the terminal insertion hole has a limiting part.
[0012] Further, the top opening of the shell is a rectangular opening, and the wire terminals are four; the positioning frame is a rectangular frame, and one positioning seat is arranged near each of the four inner corners of the rectangular frame.
[0013] Further, the two clamping pieces are arranged on the front and rear sides of the positioning frame respectively; the positioning bolts of the two positioning seats on the left side of the positioning frame are screwed from the left side, and the positioning bolts of the two positioning seats on the right side are screwed from the right side.
[0014] After the above technical scheme, before pouring the power taking transformer, the positioning frame can be erected on the edge of the top opening of the shell, the hollow positioning frame can facilitate the pouring of polyurethane resin, and the pouring condition can be observed in real time, so that the product appearance is prevented from being affected by bubbles; the positioning seats in the positioning frame can position the wire terminals, so that the positions of the wire terminals after pouring meet the requirements, specifically, the wire terminals can be inserted into the terminal insertion holes for positioning, and then the outer ends of the positioning bolts are rotated to make the inner ends of the positioning bolts abut against and press the wire terminals, so that the wire terminals are fixed, the positions of the wire terminals are fixed during pouring, and the heights of the wire terminals are kept consistent. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is an assembly schematic diagram when the embodiment of the utility model is used;
[0016] Fig. 2 It is an exploded schematic diagram when the embodiment of the utility model is used;
[0017] Fig. 3 It is a sectional view schematic diagram when the embodiment of the utility model is used.
[0018] Label explanation: pouring tool 1, positioning frame 11, positioning seat 111, terminal insertion part 112, bolt insertion part 113, terminal insertion hole 114, bolt hole 115, hollow structure 116, limiting part 117, positioning bolt 12, clamping piece 13, connecting arm 131, clamping plate 132, shell 2, wire terminal 3, resin 4. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0020] As Figs. 1 to 3As shown, the pouring tool 1 for fixing the wiring terminals of the power transformer in the embodiment includes a shell 2 and a plurality of wiring terminals 3. The top of the shell 2 is open. The shell 2 is used to set the core and winding (not shown in the figure). When producing and manufacturing, the resin 4 needs to be poured into the shell 2 and the wiring terminals 3 connected with the winding are fixed at the predetermined position of the top opening. (The resin 4 in the figure is partially filled for illustration. The actual product resin 4 is filled in the shell 2.)
[0021] In the embodiment, the top opening of the shell 2 is a substantially rectangular opening, and the wiring terminals 3 are four, which are distributed at the four corner positions of the rectangular opening.
[0022] The pouring tool 1 provided in the embodiment can conveniently and accurately fix each wiring terminal 3.
[0023] The pouring tool 1 includes a positioning frame 11 and a plurality of positioning bolts 12. The positioning frame 11 is used to overlap the edge of the top opening of the shell 2. The inner side of the positioning frame 11 is provided with a plurality of positioning seats 111 corresponding to the number of wiring terminals 3. The positioning seat 111 includes a terminal insertion part 112 extending inwardly and a bolt insertion part 113 protruding upwardly.
[0024] The terminal insertion part 112 is provided with a terminal insertion hole 114 extending vertically and having an open bottom. Each wiring terminal 3 is inserted and positioned in each terminal insertion hole 114 from bottom to top. The bolt insertion part 113 is provided with a bolt hole 115 extending transversely and having an open outer end. The transversely inner end of the bolt hole 115 is communicated with the terminal insertion hole 114. The positioning bolt 12 is screwed in the bolt hole 115. The inner end of the positioning bolt 12 movably presses the wiring terminal 3 in the terminal insertion hole 114.
[0025] Therefore, before pouring the power transformer, the positioning frame 11 can be overlapped on the edge of the top opening of the shell 2. The hollow positioning frame 11 can conveniently pour the polyurethane resin 4 and conveniently observe the pouring situation in real time, which can prevent the generation of bubbles to affect the appearance of the product. The positioning seat 111 in the positioning frame 11 can position each wiring terminal 3 to ensure that the position of the wiring terminal 3 after pouring meets the requirements. Specifically, the wiring terminal 3 can be inserted into the terminal insertion hole 114 for positioning. Then, the outer end of the positioning bolt 12 is rotated to make the inner end of the positioning bolt 12 abut and press the wiring terminal 3, which can fix the wiring terminal 3, ensure the position of the wiring terminal 3 during pouring, and keep the heights of the wiring terminals 3 consistent.
[0026] In the embodiment, the positioning frame 11 located at the rectangular opening of the shell 2 can be a rectangular frame. One positioning seat 111 is arranged near each of the four inner corners of the rectangular frame. Correspondingly, the positioning bolts 12 are four.
[0027] Further, the pouring tool 1 of the embodiment further comprises two clamping pieces 13, which can assist in fixing the positioning frame 11 to the opening of the shell 2, so as to avoid the pouring tool 1 from being pushed open by the terminal 3 during pouring.
[0028] Specifically, the two clamping pieces 13 are symmetrically arranged on the two sides of the positioning frame 11, and each clamping piece 13 comprises a connecting arm 131 and a clamping plate 132. The upper end of the connecting arm 131 is hingedly connected to the outer side of the positioning frame 11, and the lower end of the connecting arm 131 is perpendicularly connected to the clamping plate 132. The clamping plate 132 is buckled to the bottom of the shell 2 by rotating relative to the positioning frame 11. In use, after the positioning frame 11 is placed on the top opening of the shell 2, the two clamping pieces 13 are buckled downward, so that the two clamping plates 132 symmetrically arranged are clamped on the bottom of the shell 2, and the upper and lower limiting of the pouring tool 1 can be conveniently realized. After pouring is completed, the positioning bolts 12 are loosened and the clamping pieces 13 are opened, and then the pouring tool 1 can be removed, so that the pouring tool 1 can be reused.
[0029] Of course, the positioning frame 11 can also be fixed by using adhesive tape and the like instead of the clamping pieces 13.
[0030] In the embodiment, the two clamping pieces 13 can be arranged on the front and rear sides of the positioning frame 11 respectively, and the positioning bolts 12 of the two positioning seats 111 on the left side in the positioning frame 11 can be screwed from the left side, and the positioning bolts 12 of the two positioning seats 111 on the right side can be screwed from the right side. Therefore, the operation of the positioning bolts 12 and the operation of the clamping pieces 13 do not interfere with each other, and the installation operation of the pouring tool 1 is facilitated.
[0031] In the embodiment, the upper side of the terminal insertion part 112 has a hollow structure 116, which exposes the upper end of the terminal insertion hole 114, so as to facilitate the observation of whether the terminal 3 is inserted in place, and to ensure the positioning accuracy of each terminal 3. The upper end of the terminal insertion hole 114 has a limiting part 117, which can unify the height of each terminal 3.
[0032] The preferred embodiments of the utility model are described above, and the protection scope of the utility model is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the utility model shall fall within the protection scope of the utility model. It should be noted that equivalent changes and modifications made by those skilled in the art without departing from the principles of the utility model shall still fall within the protection scope of the utility model.
[0033] In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly understood by those skilled in the art, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" and "several" is two or more, unless otherwise explicitly and specifically limited.
Claims
1. A pouring tool for fixing terminals of a power supply transformer, characterized in that: the power supply transformer comprises a shell and a plurality of terminals, and the shell has a top opening; the pouring tool comprises a positioning frame and a plurality of positioning bolts; the positioning frame is overlapped on the edge of the top opening of the shell, and the inner side of the positioning frame is provided with a plurality of positioning seats corresponding to the number of terminals; the positioning seat comprises a terminal insertion part extending inwardly and a bolt insertion part protruding upwardly; the terminal insertion part is internally provided with a terminal insertion hole extending vertically and having a bottom opening, and each terminal is inserted into each terminal insertion hole from bottom to top; the bolt insertion part is provided with a bolt hole extending transversely and having an outer end opening, the bolt hole is connected to the terminal insertion hole at the transverse inner end, the positioning bolt is screwed in the bolt hole, and the inner end of the positioning bolt is movably pressed against the terminal in the terminal insertion hole. The pouring tool further comprises two clamping members; the two clamping members are symmetrically arranged on both sides of the positioning frame, and each clamping member comprises a connecting arm and a clamping plate, the upper end of the connecting arm is hingedly connected to the outer side of the positioning frame, the lower end of the connecting arm is perpendicularly connected to the clamping plate, and the clamping plate is clamped to the bottom of the shell when the connecting arm rotates relative to the positioning frame. The upper side of the terminal insertion part has a hollow structure, the hollow structure exposes the upper end of the terminal insertion hole, and the upper end of the terminal insertion hole has a limiting part. The top opening of the shell is a rectangular opening, and the terminals are four; the positioning frame is a rectangular frame, and one positioning seat is arranged near each of the four inner corners of the rectangular frame. The two clamping members are arranged on the front and rear sides of the positioning frame; the positioning bolts of the two positioning seats on the left side of the positioning frame are screwed from the left side, and the positioning bolts of the two positioning seats on the right side are screwed from the right side. 2. The pouring tool for fixing the terminal of the power-taking transformer according to claim 1, characterized in that: 3. The pouring tool for fixing the terminal of the power-taking transformer according to claim 1, characterized in that: 4. The pouring tool for fixing the terminal of the power-taking transformer according to claim 2, characterized in that: 5. The pouring tool for fixing the terminal of the power-taking transformer according to claim 4, characterized in that: