CN215069626U - Transformer low-voltage coil lead copper bar compresses tightly frock structure - Google Patents
Transformer low-voltage coil lead copper bar compresses tightly frock structure Download PDFInfo
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- CN215069626U CN215069626U CN202120578483.9U CN202120578483U CN215069626U CN 215069626 U CN215069626 U CN 215069626U CN 202120578483 U CN202120578483 U CN 202120578483U CN 215069626 U CN215069626 U CN 215069626U
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Abstract
The utility model relates to a transformer low-voltage coil lead wire copper bar compress tightly frock structure, including the mould of lead wire copper bar and coiling low-voltage coil, its characterized in that: the lead copper bar comprises a main body part and a leading-out part, and a screw hole is formed in one end, close to the leading-out part, of the main body part so as to be in threaded connection with the die to form a threaded connection structure; one end of the main body part, which is far away from the leading-out part, is provided with a copper bar matching clamping groove so as to be fixed on the die through a pressing tool, so that an easily-assembled and disassembled pressing connection structure is formed; the main body part of the lead copper bar is fixed on the die through the bolt connection structure and the easily-assembled and disassembled pressing connection structure, so that the easily-assembled and disassembled connection structure is formed. The coil winding machine has the substantial characteristics and progresses of simple specification and structure, convenience in coil winding, high efficiency, less material consumption, low cost and the like.
Description
Technical Field
The utility model relates to a transformer low voltage coil lead wire copper bar compresses tightly frock structure. Belongs to the technical field of power supply and distribution equipment of an electric power system.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and the main components of the transformer body of the transformer comprise a high coil, a low coil, an iron core, a clamping piece and an insulating piece. The transformer coil generally consists of a low-voltage coil, a high-voltage coil and an insulating material; the low-voltage coil is generally wound by adopting copper foil, and a lead is led out by adopting a copper bar welding mode; after the copper bar is welded, the leading-out copper bar needs to be fixed on a corresponding winding die for winding.
At present, a common fixing mode (see fig. 6) of a copper bar is that a clamping groove is formed in the side face, where the copper bar is placed, of a winding mold, the clamping groove is placed, the clamping groove is used for clamping the copper bar, the other side of the copper bar is fixed by an adhesive tape, and then a coil is wound, so that the mode is relatively simple and convenient to operate, but has the following problems: firstly, an insulating material needs to be placed between the coil and the mould, and the insulating material cannot be tensioned and wrapped on the mould due to the clamping strip, so that the placement of the insulating material is influenced; when the coil is wound, the wrapping force is increased, and the insulating material is wrinkled, so that the coil sleeving is influenced; secondly, the transformer coils with different capacities have different thicknesses of copper bars, so that clamping strips with various specifications are required to be manufactured; the tooling cost is increased; thirdly, in order to ensure that the coil is tightly wound, tension is required to be used for tightening and winding during winding, and the currently used copper bars are generally round-angle copper bars, so that the copper bars are easy to jump out of the clamping position or the displacement condition during winding, and the winding of the coil is directly influenced; in order to avoid the situation that the copper bar jumps out of a clamping position or a displacement, the first turn of coil cannot be wound by tension, and only the tension is added on the second back surface to wind the coil; therefore, the coil winding is not compact enough, the outer diameter is larger, the used materials are increased and the materials are wasted due to the larger outer diameter; fourthly, after the coil is wound, the insulating material is easily damaged by the clamping strip in the mould removing process, and the coil can be sleeved after the treatment.
Therefore, the copper bar fixing mode of the transformer low-voltage coil in the prior art has the problems of multiple clamping strip specifications, complex structure, difficult coil winding, low efficiency, more material consumption, high cost and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a transformer low-voltage coil lead wire copper bar compresses tightly frock structure in order to solve the fixed mode of copper bar of prior art transformer low-voltage coil and have that the card strip specification is many, the structure is complicated, coil coiling difficulty, inefficiency, consumptive material are more and with high costs scheduling problem, have specification simple structure, coil coiling convenience, efficient, consumptive material less and with low costs etc. substantive characteristics and progress.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides a transformer low voltage coil lead wire copper bar compress tightly frock structure, includes the mould of lead wire copper bar and coiling low voltage coil, its structural feature lies in: the lead copper bar comprises a main body part and a leading-out part, and a screw hole is formed in one end, close to the leading-out part, of the main body part so as to be in threaded connection with the die to form a threaded connection structure; one end of the main body part, which is far away from the leading-out part, is provided with a copper bar matching clamping groove so as to be fixed on the die through a pressing tool, so that an easily-assembled and disassembled pressing connection structure is formed; the main body part of the lead copper bar is fixed on the die through the bolt connection structure and the easily-assembled and disassembled pressing connection structure, so that the easily-assembled and disassembled connection structure is formed.
The purpose of the utility model can also be achieved by adopting the following technical scheme:
furthermore, the pressing tool is composed of a pressing sheet and a plurality of screws, the number of the screws is 6-10, the screws are arranged in two rows, and one end of the lead copper bar is connected to the die in a threaded mode through the screws to form an easily-assembled and easily-disassembled threaded structure.
Further, a mould matching groove is formed in the mould to match with the butt copper bar matching clamping groove to form a clamping connection structure.
Furthermore, screw holes are correspondingly arranged in the die at positions corresponding to the screw holes, and nuts are arranged in the screw holes of the die; two rows of small screw holes of the die are arranged at the position of the die matching groove of the die, each row of small screw holes of the die are arranged, 1 small nut is arranged in each small screw hole of the die, and two rows of small screw holes are arranged at the position, opposite to the small screw holes of the die, of the pressing tool.
Further, an insulating layer is provided on the surface of the mold to form an insulating structure.
The utility model has the following substantive characteristics and technical progress:
the utility model arranges the lead copper bar into the main body part and the leading-out part, and arranges a screw hole at one end of the main body part close to the leading-out part to be screwed with the mould to form a screwed structure; one end of the main body part, which is far away from the leading-out part, is provided with a copper bar matching clamping groove so as to be fixed on the die through a pressing tool device, so that an easily-assembled and disassembled pressing connection structure is formed; the main body part of the lead copper bar is fixed on the die through the bolt connection structure and the easily-assembled and disassembled pressing connection structure, so that the easily-assembled and disassembled connection structure is formed. Therefore, the problems that the copper bar fixing mode of the transformer low-voltage coil in the prior art is large in clamping strip specification, complex in structure, difficult in coil winding, low in efficiency, high in material consumption, high in cost and the like are solved, and the transformer low-voltage coil fixing device has the substantial characteristics and progresses of simple specification and structure, convenience in coil winding, high efficiency, less material consumption, low cost and the like.
Drawings
Fig. 1 is a front view of an application example structure of the present invention.
Fig. 2 is a left side view of the structure of fig. 1.
Fig. 3 is a sectional view of the structure taken along line a-a of fig. 2.
Fig. 4 is an enlarged sectional view of a portion ii of fig. 3.
Fig. 5 is a top view of the structure of fig. 1.
Fig. 6 is a schematic diagram of a prior art structure.
Detailed Description
Specific example 1:
referring to fig. 1 to 5, the embodiment includes a lead copper bar 1 and a mold 2 for winding a low-voltage coil, and the structure thereof is characterized in that: the lead copper bar 1 comprises a main body part 1-1 and a leading-out part 1-2, and one end of the main body part 1-1, which is close to the leading-out part, is provided with a screw hole 1-1-1 to be in threaded connection with the die 2 to form a threaded connection structure; one end of the main body part 1-1, which is far away from the leading-out part, is provided with a copper bar matching clamping groove 1-1-2 so as to be fixed on the die 2 through a pressing tool 3, thereby forming an easily assembled and disassembled pressing connection structure; the main body part 1-1 of the lead copper bar is fixed on a mould through the threaded connection structure and the easily-assembled and easily-disassembled pressing connection structure, so that the easily-assembled and easily-disassembled connection structure is formed.
In this embodiment:
the pressing tool 3 is composed of pressing sheets (not shown in the figure) and a plurality of screws (not shown in the figure), 6 screws 3-1 are arranged in two rows (3 in each row), and one end of the lead copper bar 1 is screwed on the die 2 through the screws 3-1 to form an easily-assembled and disassembled screwed structure; the mould 2 is provided with a mould matching groove 2-1 to match the butt copper bar matching clamping groove 1-1-2 to form a clamping connection structure. The mould 2 is correspondingly provided with a screw hole at the position corresponding to the screw hole 1-1-1, and a nut is arranged in the screw hole of the mould; two rows of small die screw holes are formed in the die matching groove 2-1 of the die 2, each row is provided with 3 small die screw holes, 1 small nut is arranged in each small die screw hole, and two rows of small screw holes are formed in the pressing tool 3 and are opposite to the small die screw holes. And arranging an insulating layer on the surface of the mold to form an insulating structure.
In practical application, the mold 2 for winding the low-voltage coil is arranged on a foil winding machine, and a bottoming insulating material layer 4 is wrapped and tensioned, so that the insulating material layer 4 is completely attached to the mold 2; welding a lead copper bar 1 and a copper foil, then placing the lead copper bar 1 on a die 2, preassembling a fixing nut (corresponding to the position of a screw hole 1-1, wherein the die 2 is correspondingly provided with the screw hole and the nut is arranged in the screw hole of the die) and a pressing tool 3 (corresponding to the position of a matching groove 2-1, two rows of die small screw holes are arranged on the matching groove 2-1, each row is provided with 3 die small screw holes, 1 small nut is arranged in each die small screw hole, and two rows of small screw holes are correspondingly arranged on the pressing tool 3); the copper bar is not completely tightened at the beginning, and after the relative position is adjusted and the butt joint is orderly, the copper bar fixing nut and the fixing nut of the pressing tool are tightened through the bolt, so that the copper bar is completely fixed on the die 2 and is not loosened; and starting the foil winding machine, adjusting the tension and starting to wind the low-voltage coil. Because both ends of the main body part 1-1 of the lead copper bar 1 are fixed and pressed and are completely fixed on the die 2, when the die 2 rotates, the lead copper bar 1 cannot be displaced, and after the low-voltage coil is wound, fixing screws and pressing tools at both ends of the main body part 1-1 of the lead copper bar 1 are removed; after the pressing tool is detached, the die can be directly detached to perform coil sleeving.
After the coil is wound, the coil can be directly and quickly disassembled and sleeved, the underlying insulating material can not be damaged, and the insulating property of the coil is ensured.
Specific example 2:
the utility model discloses embodiment 2's characteristics are: the pressing tool 3 is composed of a pressing sheet (not shown in the figure) and 8 screws (not shown in the figure), the pressing sheet is divided into two rows (4 screws in each row), one end of the lead copper bar 1 is connected to the die 2 in a threaded mode through the screws 3-1, and an easily-assembled and disassembled threaded structure is formed. Or the pressing tool 3 is composed of pressing sheets (not shown in the figure) and 10 screws (not shown in the figure), and is divided into two rows (5 screws in each row), and one end of the lead copper bar 1 is screwed on the die 2 through the screws (not shown in the figure) to form an easily assembled and disassembled screwed structure. The rest is the same as in embodiment 1.
To sum up, the utility model discloses there are many, the structure is complicated, coil coiling difficulty, inefficiency, the more and with high costs scheduling problem of consumptive material in the copper bar fixed mode that can solve prior art transformer low voltage coil, has specification simple structure, coil coiling convenience, efficient, the consumptive material is less and with low costs etc. substantive characteristics and progress.
Claims (5)
1. The utility model provides a transformer low voltage coil lead wire copper bar compress tightly frock structure, includes mould (2) of lead wire copper bar (1) and coiling low voltage coil, its characterized in that: the lead copper bar (1) comprises a main body part (1-1) and a leading-out part (1-2), and a screw hole (1-1-1) is formed in one end, close to the leading-out part, of the main body part (1-1) to be in threaded connection with the die (2) to form a threaded connection structure; one end of the main body part (1-1) far away from the leading-out part is provided with a copper bar matching clamping groove (1-1-2) so as to be fixed on the die (2) through a pressing tool (3) to form an easily assembled and disassembled pressing connection structure; the main body part (1-1) of the lead copper bar is fixed on the die through the threaded connection structure and the easily-assembled and easily-disassembled pressing connection structure, so that the easily-assembled and easily-disassembled connection structure is formed.
2. The pressing tool structure for the lead copper bar of the transformer low-voltage coil according to claim 1, characterized in that: the pressing tool (3) is composed of pressing sheets and a plurality of screws, the number of the screws is 6-10, the screws are arranged in two rows, and one end of the lead copper bar (1) is connected to the die (2) in a threaded mode through the screws to form an easily-assembled and disassembled threaded structure.
3. The pressing tool structure for the lead copper bar of the transformer low-voltage coil according to claim 1, characterized in that: the mould (2) is provided with a mould matching groove (2-1) to match with the butt copper bar matching clamping groove (1-1-2) to form a clamping connection structure.
4. The pressing tool structure for the lead copper bar of the transformer low-voltage coil according to claim 3, characterized in that: the mould (2) is correspondingly provided with a screw hole at the position corresponding to the screw hole (1-1-1), and a nut is arranged in the screw hole of the mould; two rows of small die screw holes are formed in the die matching groove (2-1) of the die (2), each row of small die screw holes is provided with (3), small nuts are arranged in the small die screw holes (1), and two rows of small screw holes are formed in the pressing tool (3) and are opposite to the small die screw holes.
5. The pressing tool structure for the lead copper bar of the transformer low-voltage coil according to claim 1, characterized in that: an insulating layer (4) is arranged on the surface of the mould (2) to form an insulating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120578483.9U CN215069626U (en) | 2021-03-22 | 2021-03-22 | Transformer low-voltage coil lead copper bar compresses tightly frock structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120578483.9U CN215069626U (en) | 2021-03-22 | 2021-03-22 | Transformer low-voltage coil lead copper bar compresses tightly frock structure |
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| Publication Number | Publication Date |
|---|---|
| CN215069626U true CN215069626U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120578483.9U Active CN215069626U (en) | 2021-03-22 | 2021-03-22 | Transformer low-voltage coil lead copper bar compresses tightly frock structure |
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| Country | Link |
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| CN (1) | CN215069626U (en) |
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2021
- 2021-03-22 CN CN202120578483.9U patent/CN215069626U/en active Active
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Address after: Area A1, factory building, Taiji industrial town, Yinzhan management area, Longtang Town, Qingcheng District, Qingyuan City, Guangdong Province, 511500 Patentee after: Guangdong Baichang Energy Technology Co.,Ltd. Address before: 511540 area A1 of Taiji industrial city factory building, Yinzhan management area, Longtang Town, Qingcheng District, Qingyuan City, Guangdong Province Patentee before: GUANGDONG BAICHANG ELECTRIC POWER EQUIPMENT CO.,LTD. |