CN213242772U - Electrode screw beneficial to transmitting large current - Google Patents
Electrode screw beneficial to transmitting large current Download PDFInfo
- Publication number
- CN213242772U CN213242772U CN202022340471.0U CN202022340471U CN213242772U CN 213242772 U CN213242772 U CN 213242772U CN 202022340471 U CN202022340471 U CN 202022340471U CN 213242772 U CN213242772 U CN 213242772U
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- screw
- blind hole
- screw rod
- wiring blind
- electrode
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Abstract
The utility model discloses a do benefit to electrode screw of transmission heavy current, including the first screw rod that is equipped with the external screw thread, be equipped with the wiring blind hole with the axial on the first screw rod, be equipped with the exhaust hole on the pore wall of wiring blind hole, the exhaust hole is located be close to on the first screw rod the position of wiring blind hole bottom. The utility model discloses a set up the exhaust hole on the pore wall of the wiring blind hole of first screw rod, when filling the soldering tin to the wiring blind hole, the gas in the wiring blind hole can be fully discharged through the exhaust hole, has avoided having the problem such as insufficient of rosin joint or welding that leads to because of having gas in the wiring blind hole, has improved welded stability and electric conductivity; meanwhile, the melted soldering tin can flow out of the exhaust hole to a gap between the external thread of the first screw and the internal thread of the nut, so that the mechanical connection stability and the electrical conductivity between the nut and the first screw are improved.
Description
Technical Field
The utility model relates to an electrode screw of mainly used wave filter device conductive connection especially relates to an electrode screw that does benefit to transmission heavy current.
Background
The electrode screw is a screw having an electrode function, has an electrical conduction function, and is often used in devices where it is inconvenient to mount other electrodes, for example, in a filter, the parts inside and outside the housing need to be connected both mechanically and electrically, and the electrode screw is often used to achieve the functions of both mechanical connection and electrical connection.
The electrode screw is required to be connected with the wire, so that one end of the electrode screw is provided with a wiring blind hole for being connected with the wire in a welding mode, during connection, the wire is placed in the wiring blind hole and filled with soldering tin, and wire connection between the electrode screw and the wire can be achieved.
The conventional electrode screw has the following disadvantages: the hole wall of the wiring blind hole is of a fully-closed structure, and when soldering tin is filled, part of gas is often gathered in the wiring blind hole, so that the welding stability and the conductivity are reduced, the problem of insufficient soldering or incomplete soldering is caused, the internal resistance is increased, and further the heat is too high, and particularly when a large current exceeding 10A passes through an electrode screw, the serious result that the product is damaged by high heat is possibly caused; in addition, the traditional electrode screw is not provided with a special conducting strip, the contact conduction is generally realized by utilizing a screw cap of the screw, the conducting performance is not high, and the problem of increased connection resistance also exists.
SUMMERY OF THE UTILITY MODEL
The object of the utility model is to provide an electrode screw that does benefit to transmission heavy current that welded stability and conductivity can both improve for solving above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the utility model provides a do benefit to electrode screw of transmission heavy current, is including the first screw rod that is equipped with the external screw thread, be equipped with the wiring blind hole with the axial on the first screw rod, be equipped with the exhaust hole on the pore wall of wiring blind hole, the exhaust hole is located be close to on the first screw rod the position of wiring blind hole bottom.
Further, in order to increase the contact area to improve the conductivity, the closed end of the first screw is connected with the first end of a square rod with a square radial cross section, the second end of the square rod is connected with one side of a conducting strip with a larger outer diameter and smooth surfaces on two sides, and the other side of the conducting strip is connected with the first end of a second screw which is provided with an external thread and has an outer diameter smaller than that of the first screw. The conductive sheet is typically designed as a circular sheet.
Preferably, in order to improve strength and conductivity, the first screw, the square rod, the conductive sheet and the second screw are integrally formed and are made of metal.
Further, in order to prevent the first end of the second stud bolt and the conducting strip from being broken so as to improve the strength, a thread-free section with the diameter of 1-5mm is arranged between the external thread on the second screw rod and the first end of the second screw rod.
The beneficial effects of the utility model reside in that:
the utility model discloses a set up the exhaust hole on the pore wall of the wiring blind hole of first screw rod, when filling the soldering tin to the wiring blind hole, the gas in the wiring blind hole can be fully discharged through the exhaust hole, has avoided having the problem such as insufficient of rosin joint or welding that leads to because of having gas in the wiring blind hole, has improved welded stability and electric conductivity; meanwhile, the melted soldering tin can flow out of the exhaust hole into a gap between the external thread of the first screw and the internal thread of the nut, so that the mechanical connection stability and the electrical conductivity between the nut and the first screw are improved; in addition, through setting up square pole, can not rotate when making the electrode connect, through setting up the conducting strip, increased area of contact, improved electric conductive property, have the locate function of nut simultaneously, through setting up the second screw rod, be convenient for realize this electrode screw and other devices like the erection joint between the electrode.
Drawings
Fig. 1 is a perspective view of an electrode screw for transmitting large current according to the present invention;
fig. 2 is a front cross-sectional view of the electrode screw of the present invention facilitating the transmission of large currents.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 and 2, the electrode screw facilitating the transmission of large current of the present invention includes a first screw rod 1 having an external thread, a coaxial wiring blind hole 7 is disposed on the first screw rod 1, an exhaust hole 2 is disposed on a hole wall of the wiring blind hole 7, and the exhaust hole 2 is located on the first screw rod 1 near the bottom of the wiring blind hole 7; the closed end of the first screw rod 1 is connected with the first end of a square rod 3 with a square radial section, the second end of the square rod 3 is connected with one side of a conducting strip 4 with larger external diameter and smooth surfaces at two sides, and the other side of a circular conducting strip 4 is connected with the first end of a second screw rod 6 with external threads and smaller external diameter than the first screw rod 1; the first screw 1, the square rod 3, the conducting strip 4 and the second screw 6 are integrally formed and are all made of metal; a 1-5mm thread-free section 5 is arranged between the external thread on the second screw 6 and the first end of the second screw 6.
As shown in fig. 1 and 2, during application, after being enameled, the electric wire is placed in the wiring blind hole 7, soldering tin is added to melt the electric wire or the melted soldering tin is added, gas in the wiring blind hole 7 is completely discharged through the exhaust hole 2, meanwhile, the melted soldering tin can flow out of a part of the electric wire to a gap between an external thread of the first screw rod 1 and an internal thread of the nut (not shown in the figure) through the exhaust hole 2, and after solidification, the nut and the first screw rod are connected more stably and have better conductivity. The second screw 6 can be connected to other devices such as electrodes by means of its external thread.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.
Claims (4)
1. The utility model provides a do benefit to electrode screw that transmits heavy current, is including the first screw rod that is equipped with the external screw thread, be equipped with the wiring blind hole with axial on the first screw rod, its characterized in that: and the hole wall of the wiring blind hole is provided with an exhaust hole, and the exhaust hole is positioned at a position on the first screw rod, which is close to the bottom of the wiring blind hole.
2. The electrode screw for transmitting large current according to claim 1, wherein: the closed end of the first screw is connected with the first end of a square rod with a square radial section, the second end of the square rod is connected with one side of a conducting strip with a larger outer diameter and smooth surfaces on two sides, and the other side of the conducting strip is connected with the first end of a second screw which is provided with an external thread and has an outer diameter smaller than that of the first screw.
3. The electrode screw facilitating the transmission of high currents as set forth in claim 2, wherein: the first screw rod, the square rod, the conducting strip and the second screw rod are integrally formed and are made of metal.
4. The electrode screw for transmitting large current according to claim 3, wherein: and a 1-5mm thread-free section is arranged between the external thread on the second screw and the first end of the second screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022340471.0U CN213242772U (en) | 2020-10-20 | 2020-10-20 | Electrode screw beneficial to transmitting large current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022340471.0U CN213242772U (en) | 2020-10-20 | 2020-10-20 | Electrode screw beneficial to transmitting large current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213242772U true CN213242772U (en) | 2021-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022340471.0U Active CN213242772U (en) | 2020-10-20 | 2020-10-20 | Electrode screw beneficial to transmitting large current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213242772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451791A (en) * | 2021-05-22 | 2021-09-28 | 深圳市越疆科技有限公司 | Connection structure of detection circuit board and electrode, electronic skin, shell and mechanical arm |
-
2020
- 2020-10-20 CN CN202022340471.0U patent/CN213242772U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451791A (en) * | 2021-05-22 | 2021-09-28 | 深圳市越疆科技有限公司 | Connection structure of detection circuit board and electrode, electronic skin, shell and mechanical arm |
| CN113451791B (en) * | 2021-05-22 | 2024-01-05 | 深圳市越疆科技股份有限公司 | Connection structure, electronic skin, shell and mechanical arm of detection circuit board and electrode |
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