CN211062911U - Spiral contact finger and plug-pull piece for industrial conductive equipment - Google Patents
Spiral contact finger and plug-pull piece for industrial conductive equipment Download PDFInfo
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- CN211062911U CN211062911U CN202020017389.1U CN202020017389U CN211062911U CN 211062911 U CN211062911 U CN 211062911U CN 202020017389 U CN202020017389 U CN 202020017389U CN 211062911 U CN211062911 U CN 211062911U
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- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 14
- 238000007906 compression Methods 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Abstract
The utility model provides a spiral contact finger and a plug-in piece for industrial conductive equipment, wherein the peripheral shape of the section of the spiral contact finger is an annular basic ring; the annular basic ring comprises an arc section, an inward concave section, a first salient point and a second salient point; the concave section is positioned below the arc section, and the first salient point is formed between the left end of the concave section and the left end of the arc section; and the second salient point is formed between the right end of the concave section and the right end of the arc section. Has the advantages that: the special compression type structure of the contact finger ensures that the contact finger has large compression amount and enough contact force, thereby ensuring the reliability of electric conduction. And the special double convex point structure in the finger ring forms 2 contact points; compared with the traditional contact finger, the spiral contact finger has one more contact point, so that the current capacity of the spiral contact finger is obviously improved.
Description
Technical Field
The utility model belongs to the technical field of the electrically conductive equipment of industry, concretely relates to spiral for electrically conductive equipment of industry touches and indicates and plug spare.
Background
At present, electrical equipment in the fields of energy sources, power transmission and transformation, electric automobiles, industrial electricity and the like is gradually miniaturized and integrated, and higher requirements are provided for the installation and the maintenance of the equipment.
The conductive plug piece is used for realizing the electrical communication between the power equipment and the power supply. Specifically, electrically conductive plug spare mainly includes base and row of inserting, and the installation touches the finger in the base, and the row of inserting inserts in the base, and with touch the finger contact, realizes the electric connection between base and the row of inserting. The existing contact finger installed in a base mainly has the following problems: the socket and the contact fingers are in single-point contact, so that the current capacity of the contact fingers is limited.
SUMMERY OF THE UTILITY MODEL
The defect to prior art existence, the utility model provides a spiral for industry electrically conductive equipment touches and indicates and plug spare can effectively solve above-mentioned problem.
The utility model adopts the technical scheme as follows:
the utility model provides a spiral contact finger for industrial conductive equipment, which is a spiral annular contact finger formed by winding a conductive wire, wherein the peripheral shape of the cross section of the spiral annular contact finger is an annular basic ring; the annular basic ring comprises an arc section (1), an inward concave section (2), a first salient point (3) and a second salient point (4); the concave section (2) is positioned below the arc section (1), and the first salient point (3) is formed between the left end of the concave section (2) and the left end of the arc section (1); and the second salient point (4) is formed between the right end of the concave section (2) and the right end of the arc section (1).
Preferably, the annular basic ring is an inclined annular basic ring.
Preferably, the conductive wire is a copper alloy.
Preferably, the spiral contact finger for the industrial conductive equipment is in a circular ring shape or a straight strip shape.
The utility model also provides a plug-pull piece based on the spiral contact finger for the industrial conductive equipment, which comprises a plug bush base (5), a sliding mandrel (6) and a spiral contact finger (7) for the industrial conductive equipment;
the plug bush base (5) is of a cylindrical structure, and the plug bush base (5) is provided with a V-shaped annular groove with a V-shaped section; the spiral contact finger (7) for the industrial conductive equipment is fixedly arranged in the V-shaped annular groove, and the circular arc section (1) of the spiral contact finger (7) for the industrial conductive equipment is in point contact with two planes of the V-shaped annular groove respectively;
the sliding core shaft (6) is cylindrical, the sliding core shaft (6) is inserted into the spiral contact finger (7) for the industrial conductive equipment, and the surface of the sliding core shaft (6) is in point contact with the first salient point (3) and the second salient point (4) of the spiral contact finger (7) for the industrial conductive equipment at the same time.
The utility model also provides a plug-pull piece based on the spiral contact finger for the industrial conductive equipment, which comprises a base conductive bar (8), a movable conductive bar (9) and a spiral contact finger (7) for the industrial conductive equipment;
the base conducting bar (8) is of a flat plate structure and is provided with a V-shaped annular groove with a V-shaped section; the spiral contact finger (7) for the industrial conductive equipment is fixedly arranged in the V-shaped annular groove, and the circular arc section (1) of the spiral contact finger (7) for the industrial conductive equipment is in point contact with two planes of the V-shaped annular groove respectively;
the movable conductive bar (9) is flat, the movable conductive bar (9) is buckled outside the base conductive bar (8), and the surface of the movable conductive bar (9) is simultaneously in point contact with the first salient point (3) and the second salient point (4) of the spiral contact finger (7) of the industrial conductive equipment.
The utility model provides a spiral for industry electrically conductive equipment touches and indicates and plug spare has following advantage:
the special compression type structure of the contact finger ensures that the contact finger has large compression amount and enough contact force, thereby ensuring the reliability of electric conduction. And the special double convex point structure in the finger ring forms 2 contact points; compared with the traditional contact finger, the spiral contact finger has one more contact point, so that the current capacity of the spiral contact finger is obviously improved.
Drawings
Fig. 1 is a schematic perspective view of a straight spiral contact finger according to the present invention;
fig. 2 is a schematic view of another three-dimensional structure of the straight spiral contact finger provided by the present invention;
fig. 3 is a schematic view of another three-dimensional structure of the straight spiral contact finger provided by the present invention;
fig. 4 is a schematic view of a front view structure of a straight spiral contact finger provided by the present invention;
fig. 5 is a schematic perspective view of the circular spiral contact finger provided by the present invention;
fig. 6 is a schematic structural view of the circular spiral contact finger according to the present invention;
fig. 7 is a schematic side view of the circular ring-shaped spiral contact finger provided by the present invention;
fig. 8 is a schematic perspective view of a plug member according to the present invention;
fig. 9 is a schematic perspective view of another plug member according to the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a spiral for industry electrically conductive equipment touches and indicates for the novel spiral of industry frequency conversion field equipment such as converter, converter touches and indicates. The spiral contact finger is made of alloy materials with good conductivity, elasticity, wear resistance and high temperature resistance. The spiral contact fingers have a high current capacity. The product is arranged in a frequency converter, a converter cabinet, a power distribution cabinet and a high-voltage switch cabinet in a plugging or pressing mode to work. The spiral contact finger has certain insertion force during insertion and extraction, has enough large compression amount, and has good contact force and small insertion force obviously superior to other structures when using thicker conductive materials, thereby ensuring enough conductive contact force. The special flexible quick-insertion compression structure allows the product to have larger swinging amount in a working state, and remarkably improves the anti-seismic performance and stability of the product.
The spiral contact finger for the industrial conductive equipment is a spiral annular contact finger formed by winding a conductive wire, wherein the conductive wire is made of copper alloy with good conductivity, elasticity and strength. The outer periphery of the cross section of the base ring is an annular basic ring; referring to fig. 2, the annular basic ring includes a circular arc section 1, an inner concave section 2, a first salient point 3 and a second salient point 4; the concave section 2 is positioned below the arc section 1, and a first salient point 3 is formed between the left end of the concave section 2 and the left end of the arc section 1; a second salient point 4 is formed between the right end of the concave section 2 and the right end of the arc section 1. In addition, the annular basic ring is an inclined annular basic ring, so that deformation is facilitated when the annular basic ring is pressed.
The utility model provides a spiral for industry electrically conductive equipment touches and indicates, the structure of two kinds of basic shapes can be ring shape or straight bar. Referring to fig. 1-4, the structure of the straight-bar spiral contact finger is schematically shown; referring to fig. 5-7, the structure of the circular spiral contact finger is schematically shown.
The spiral contact finger has the following advantages:
1) the section design of spiral annular touches finger is two bump structures, promptly: a first bump 3 and a second bump 4, thus forming 2 contact points; the traditional contact fingers are all one contact point, so that the current capacity of the contact finger is obviously improved; this is the most innovative in the sense of the present application.
2) 2 contact points are designed, so that the requirement on the installation precision is low, and the installation error in a certain error range is allowed;
3) the contact finger arc section is used for being matched and installed with the V-shaped groove of the conductive piece, so that two contact points are formed between the contact finger arc section and the V-shaped groove, and the current capacity of the contact finger is further improved;
4) can bear long-time vibration in a working state.
5) The service life is long, the effective plugging times are more than 10000 times, and the effective crimping times are more than 15000 times.
6) The spiral contact finger has enough compression amount, and ensures enough conductive contact force.
7) The special compression type structure of the spiral contact finger allows larger deformation, on one hand, the product can have larger swing amount in the operation process, and the shock resistance and stability of the product are obviously improved. On the other hand, the plugging force is moderate, the plugging is convenient, and the electric conduction is reliable;
8) the bolt connection is replaced, and the overhaul and the maintenance are convenient;
two typical uses of spiral fingers are described below:
the first usage:
referring to fig. 8, a plug-in member comprises a plug bush base 5, a sliding mandrel 6 and a spiral contact finger 7 for industrial conductive equipment;
the plug bush base 5 is of a cylindrical structure, and the plug bush base 5 is provided with a V-shaped annular groove with a V-shaped section; in fig. 8, 10 is a V-shaped annular groove; the spiral contact finger 7 for the industrial conductive equipment is fixedly arranged in the V-shaped annular groove, and the arc section 1 of the spiral contact finger 7 for the industrial conductive equipment and two planes of the V-shaped annular groove form point contact respectively;
the sliding mandrel 6 is cylindrical, the sliding mandrel 6 is inserted into the spiral contact finger 7 for the industrial conductive equipment, and the surface of the sliding mandrel 6 is in point contact with the first salient point 3 and the second salient point 4 of the spiral contact finger 7 for the industrial conductive equipment at the same time.
The using method comprises the following steps:
1. firstly, the spiral contact finger is arranged in an inserting sleeve base with a clamping groove, and the inserting sleeve base is fixed and conducted.
2. During installation: after the power is cut off, the sliding mandrel is inserted into the plug bush base through the pushing action, when the sliding mandrel is inserted, the spiral contact fingers of the plug bush base are pressed, so that sufficient conductive contact force is generated, and meanwhile, a conductive channel of D, E end input F end output (shown in figure 5) is formed on the spiral contact fingers. The power supply is conducted with the power unit through the spiral contact finger in the plug bush base, and the power unit can work after the power unit is switched on.
When the contact finger is used for plugging, certain plugging force is provided, certain installation error is allowed, and the special compression type structure of the contact finger enables the contact finger to have large compression amount and enough contact force, so that the conductive reliability is ensured. And the special double convex point structure in the finger ring forms 2 contact points; compared with the traditional contact finger, the spiral contact finger has one more contact point, so that the current capacity of the spiral contact finger is obviously improved.
3. During maintenance: after the power failure, the sliding core shaft is pulled out of the plug bush base through the pulling action, the power supply is not conducted with the power unit any more, and the power unit can be overhauled and maintained at the moment.
The second usage is as follows:
referring to fig. 9, a plug-in member comprises a base conductive bar 8, a mobile conductive bar 9 and a spiral contact finger 7 for industrial conductive equipment;
the base conducting bar 8 is of a flat plate structure and is provided with a V-shaped annular groove with a V-shaped section; the spiral contact finger 7 for the industrial conductive equipment is fixedly arranged in the V-shaped annular groove, and the arc section 1 of the spiral contact finger 7 for the industrial conductive equipment and two planes of the V-shaped annular groove form point contact respectively;
the movable conductive bar 9 is in a flat plate shape, the movable conductive bar 9 is buckled outside the base conductive bar 8, and the surface of the movable conductive bar 9 is simultaneously in point contact with the first salient point 3 and the second salient point 4 of the spiral contact finger 7 used for industrial conductive equipment.
The using method comprises the following steps:
1) firstly, the spiral contact finger is arranged in a base conductive bar with a clamping groove and fixed by a pin, and then the base conductive bar is fixed and conducted;
2) during installation: after the power is cut off, the movable conducting bar is connected to the spiral contact finger in a pressing mode through the pushing action, the power supply is conducted with the power unit through the spiral contact finger, and at the moment, the switch-on can be started to work.
The application method is characterized in that the movable conductive row is pressed to the spiral contact finger, so that sufficient conductive contact force is formed by extruding the spiral contact finger, meanwhile, conductive channels of A, B-end input and C-end output (shown in figure 1) are formed on the spiral contact finger, the application method has certain crimping force and certain installation error, and the special compression type structure of the contact finger enables the contact finger to have large compression amount and sufficient contact force, so that the conductive reliability is ensured. And the special double convex point structure in the finger ring forms 2 contact points; compared with the traditional contact finger, the spiral contact finger has one more contact point, so that the current capacity of the spiral contact finger is obviously improved.
During maintenance: after the power is cut off, the movable conductive bar is separated from the spiral contact finger through the pulling action, the power supply is not conducted with the power unit any more, and the power unit can be overhauled and maintained at the moment.
The utility model provides a spiral for industry electrically conductive equipment touches and indicates and plug spare has following advantage:
the special compression type structure of the contact finger ensures that the contact finger has large compression amount and enough contact force, thereby ensuring the reliability of electric conduction. And the special double convex point structure in the finger ring forms 2 contact points; compared with the traditional contact finger, the spiral contact finger has one more contact point, so that the current capacity of the spiral contact finger is obviously improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (6)
1. The spiral contact finger for the industrial conductive equipment is characterized in that the spiral contact finger for the industrial conductive equipment is a spiral annular contact finger formed by winding a conductive wire, and the outer periphery of the cross section of the spiral annular contact finger is in an annular basic ring shape; the annular basic ring comprises an arc section (1), an inward concave section (2), a first salient point (3) and a second salient point (4); the concave section (2) is positioned below the arc section (1), and the first salient point (3) is formed between the left end of the concave section (2) and the left end of the arc section (1); and the second salient point (4) is formed between the right end of the concave section (2) and the right end of the arc section (1).
2. The helical contact finger for industrial conductive equipment as claimed in claim 1, wherein said annular base ring is an inclined annular base ring.
3. The helical contact finger for industrial conductive equipment as claimed in claim 1, wherein said conductive wire is a copper alloy.
4. The spiral contact finger for industrial conductive equipment as claimed in claim 1, wherein the spiral contact finger for industrial conductive equipment is in a shape of a circular ring or a straight bar.
5. The plug piece of the spiral contact finger for the industrial conductive equipment is characterized by comprising a plug bush base (5), a sliding mandrel (6) and the spiral contact finger (7) for the industrial conductive equipment, wherein the plug bush base is provided with a plurality of grooves;
the plug bush base (5) is of a cylindrical structure, and the plug bush base (5) is provided with a V-shaped annular groove with a V-shaped section; the spiral contact finger (7) for the industrial conductive equipment is fixedly arranged in the V-shaped annular groove, and the circular arc section (1) of the spiral contact finger (7) for the industrial conductive equipment is in point contact with two planes of the V-shaped annular groove respectively;
the sliding core shaft (6) is cylindrical, the sliding core shaft (6) is inserted into the spiral contact finger (7) for the industrial conductive equipment, and the surface of the sliding core shaft (6) is in point contact with the first salient point (3) and the second salient point (4) of the spiral contact finger (7) for the industrial conductive equipment at the same time.
6. A plug member of a spiral contact finger for industrial conductive equipment based on any one of claims 1-4, characterized by comprising a base conductive bar (8), a movable conductive bar (9) and a spiral contact finger (7) for industrial conductive equipment;
the base conducting bar (8) is of a flat plate structure and is provided with a V-shaped annular groove with a V-shaped section; the spiral contact finger (7) for the industrial conductive equipment is fixedly arranged in the V-shaped annular groove, and the circular arc section (1) of the spiral contact finger (7) for the industrial conductive equipment is in point contact with two planes of the V-shaped annular groove respectively;
the movable conductive bar (9) is flat, the movable conductive bar (9) is buckled outside the base conductive bar (8), and the surface of the movable conductive bar (9) is simultaneously in point contact with the first salient point (3) and the second salient point (4) of the spiral contact finger (7) of the industrial conductive equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020017389.1U CN211062911U (en) | 2020-01-06 | 2020-01-06 | Spiral contact finger and plug-pull piece for industrial conductive equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020017389.1U CN211062911U (en) | 2020-01-06 | 2020-01-06 | Spiral contact finger and plug-pull piece for industrial conductive equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211062911U true CN211062911U (en) | 2020-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020017389.1U Active CN211062911U (en) | 2020-01-06 | 2020-01-06 | Spiral contact finger and plug-pull piece for industrial conductive equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211062911U (en) |
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2020
- 2020-01-06 CN CN202020017389.1U patent/CN211062911U/en active Active
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Address after: No. 8 Jufu South Road, Yujiawu Hui Township, Tongzhou District, Beijing, 101105 Patentee after: Beijing Weitongli Electric Co.,Ltd. Address before: 101105 Beijing Tongzhou District Tongzhou District 8 South Road 1 1 1 Patentee before: BEIJING VICTORY ELECTRIC Co.,Ltd. |