CN205081019U - Earthing switch with utilize electric power static contact - Google Patents
Earthing switch with utilize electric power static contact Download PDFInfo
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- CN205081019U CN205081019U CN201520778403.9U CN201520778403U CN205081019U CN 205081019 U CN205081019 U CN 205081019U CN 201520778403 U CN201520778403 U CN 201520778403U CN 205081019 U CN205081019 U CN 205081019U
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Abstract
The utility model relates to an earthing switch with utilize electric power static contact. Including the moving contact, touch the finger, spring, frame, damping pad, frame, static contact, wiring copper, mutual -inductor. The moving contact indicate to concrete with touching, touch indicate with bolted connection frame the for, touch that indicate and the frame links within a definite time and has the spring. The damping pad overlaps on the frame, frame and bolted connection for the static contact. Bolted connection is used with one side of wiring copper to the static contact, and the mutual -inductor is connected to wiring copper opposite side. The utility model discloses effectively utilize the electric power, prevented contact clearance leakage when the contact is closed and the energy loss that causes. Reasonable wiring mode has reduced the electric power to the closed interference of contact. The structure symmetry is good simultaneously, is favorable to the entering of moving contact, has improved the electric property and the mechanical properties of switch. The spring applied pressure can prevent that the moving contact from deviating from.
Description
Technical field
The utility model relates to a kind of earthed switch, and this earthed switch is with the novel contact that can improve switch machine performance and electric property.
Background technology
Along with integrating with of power transmission and distribution field GB and IEC standard, the mechanical performance of high-voltage switch gear especially earthed switch and the requirement of electric property are improved gradually.Meanwhile, environmental protection, low carbon development is also in current important development strategy status.Earthed switch is before mostly plane holder compact form structure, this structure backwardness, can not adapt to social development requirement instantly.Chinese utility model patent CN202977183 discloses a kind of fixed contact, this fixed contact comprises pedestal, pedestal is provided with two relative contact plates, supporting bracket is provided with outside contact plate, contact plate is provided with not through hole in the same horizontal line, supporting bracket is connected by two fixed levers and through hole, and supporting bracket bottom and pedestal are connected.Be provided with a disc spring between supporting bracket and contact plate, disc spring is sheathed with on fixed lever.The structure of this improvement, is conducive to entering of moving contact, mechanical performance to a certain extent, and all more original traditional structure of electric property increases.The shortcoming that this utility model mainly exists only has both sides to have contact plate to the inadequate balance and stability of moving contact electric property, also easily concentrates by contact force, same current by time need the contact force that provides larger.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of earthed switch with utilizing electric power fixed contact.
With utilizing the earthed switch of electric power fixed contact to comprise a moving contact, fingertip, spring, frame, cushion blocking, support, fixed contact, wiring copper coin, instrument transformer.Moving contact and fingertip consolidation, fingertip is connected with frame bolt, is connected with spring between fingertip and frame.Cushion blocking is enclosed within support, and support is connected with fixed contact bolt.Fixed contact is connected with bolt with the side of wiring copper coin, and wiring copper coin opposite side connects instrument transformer.
Described fixed contact coiling and the coiling of wiring copper coin adopt mode that is trapezoidal and L shape, the electric power coefficient in horizontal wiring cross section is trapezoid model, the electric power coefficient in vertical wiring cross section is L shape model, trapezoid model two diagonal is respectively d1 and d2, and the two waist length of sides are s1 and s2, and height is a, the ratio of d1:d2:s1:s2:a is 1:2.2:1.22:1.61:1, L shape model horizontal central line and vertical center line are respectively a and h, and width is the ratio of 2r, a:h:r is 7.53:6.08:1.
The fingertip bar of rounded array is had in described fixed contact.There is the reed of evagination indent to support outside the single fingertip bar of fixed contact, have 16 and above fingertip bar.
Have the space of 2.5mm to 5.5mm between each fingertip of described fixed contact, this gap can produce electric power and hold effect tightly, increases contact when electric current flows through, reduces contact resistance, prevent contact melting welding.
Use the utility model to efficiently utilize electric power by the contact chip of circumference uniform distribution, prevent from contacting the closely energy loss caused during contact closure.Structural symmetry is good simultaneously, is conducive to entering of moving contact, improves electric property and the mechanical performance of switch.Spring applied pressure can prevent moving contact from deviating from.Increase contact when electric current flows through, reduce contact resistance, prevent contact melting welding.
Accompanying drawing explanation
Fig. 1 is the end view of the earthed switch with Novel fixed contact;
Fig. 2 is the static contact of grounding switch vertical view with Novel fixed contact;
Fig. 3 is the single fingertip of static contact of grounding switch with Novel fixed contact and reed;
Fig. 4 be with Novel fixed contact earthed switch fixed contact and wiring copper coin on coiling form;
Fig. 5 is the trapezoid model in horizontal coiling cross section;
The L shape model that Fig. 6 is vertical coiling cross section;
Fig. 7 is the schematic diagram that contact probe finger produces suction, and electric current produces suction in the same way;
Moving contact 1 in figure, fingertip 2, spring 3, frame 4, cushion blocking 5, support 6, fixed contact 7, wiring copper coin 8, instrument transformer 9, reed 10.
Embodiment
As shown in Figure 1, a kind of with utilizing the earthed switch of electric power fixed contact to comprise moving contact 1, fingertip 2, spring 3, frame 4, cushion blocking 5, support 6, fixed contact 7, wiring copper coin 8, instrument transformer 9, moving contact 1 and fingertip 2 consolidation, fingertip 2 is connected with bolt with frame 4, spring 3 is connected with between fingertip 2 and frame 4, cushion blocking 5 is enclosed within support 6, and support 6 is connected with bolt with fixed contact 7.Fixed contact 7 is connected with bolt with the side of wiring copper coin 8, and wiring copper coin 8 opposite side connects instrument transformer 9.
As shown in Figures 4 to 6, described fixed contact coiling and the coiling of branch bar plate adopt mode that is trapezoidal and L shape, and the electric power coefficient in horizontal wiring cross section is trapezoid model, and the electric power coefficient of vertically wiring is L shape.Trapezoid model two diagonal is respectively d1 and d2, and the two waist length of sides are s1 and s2, and height is a, the ratio of d1:d2:s1:s2:a is 1:2.2:1.22:1.61:1, L shape model horizontal central line and vertical center line are respectively a and h, and width is the ratio of 2r, a:h:r is 7.53:6.08:1.
Trapezoidal electric power coefficient is expressed as
L shape electric power coefficient is expressed as
Increase the distance a between two wires, efficiently reduce electric power coefficient c, and then reduce electric power to the interference of earthed switch.
The fingertip bar of rounded array is had in fixed contact as shown in Fig. 2,3 and 7.There is the reed of evagination indent to support outside the single fingertip bar of fixed contact, have 16 and above fingertip bar.When electric current flows through fingertip, direction is identical, produces electronic suction.Have the space of 2.5mm to 5.5mm between each fingertip bar of fixed contact, this gap can produce electric power and hold effect tightly, increases contact when electric current flows through, reduces contact resistance, prevent contact melting welding.
Use this earthed switch step with utilizing electric power fixed contact: when closing lock, operating mechanism drives fingertip to rotate 90 ° in perpendicular, moving contact is squeezed in the fingertip bar of grounding static contact, by electric current in the same way in the fingertip bar of fixed contact, produce the electric power that fingertip bar is attracted each other, clamping moving contact.During separating brake, loosening operating mechanism, fingertip half-twist in perpendicular under spring drives, exits grounding static contact.
Claims (4)
1. one kind with the earthed switch utilizing electric power fixed contact, it is characterized in that comprising moving contact (1), fingertip (2), spring (3), frame (4), cushion blocking (5), support (6), fixed contact (7), wiring copper coin (8), instrument transformer (9), moving contact (1) and fingertip (2) consolidation, fingertip (2) is connected with bolt with frame (4), spring (3) is connected with between fingertip (2) and frame (4), cushion blocking (5) is enclosed within support (6), support (6) is connected with bolt with fixed contact (7), fixed contact (7) is connected with bolt with the side of wiring copper coin (8), wiring copper coin (8) opposite side connects instrument transformer (9).
2. a kind of earthed switch with utilizing electric power fixed contact according to claim 1, it is characterized in that described fixed contact coiling and the coiling of wiring copper coin adopt mode that is trapezoidal and L shape, the electric power coefficient in horizontal wiring cross section is trapezoid model, the electric power coefficient in vertical wiring cross section is L shape model, trapezoid model two diagonal is respectively d1 and d2, the two waist length of sides are s1 and s2, height is a, the ratio of d1:d2:s1:s2:a is 1:2.2:1.22:1.61:1, L shape model horizontal central line and vertical center line are respectively a and h, width is 2r, the ratio of a:h:r is 7.53:6.08:1.
3. a kind of earthed switch with utilizing electric power fixed contact according to claim 1, it is characterized in that the fingertip bar having rounded array in described fixed contact (7), be provided with the reed (10) of evagination indent outside the single fingertip bar of fixed contact, have 16 and above fingertip bar.
4. a kind of earthed switch with utilizing electric power fixed contact according to claim 1 or 3, has the space of 2.5mm to 5.5mm between each fingertip bar that it is characterized in that described fixed contact (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778403.9U CN205081019U (en) | 2015-08-26 | 2015-10-09 | Earthing switch with utilize electric power static contact |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520652735 | 2015-08-26 | ||
| CN2015206527352 | 2015-08-26 | ||
| CN201520778403.9U CN205081019U (en) | 2015-08-26 | 2015-10-09 | Earthing switch with utilize electric power static contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205081019U true CN205081019U (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520778403.9U Active CN205081019U (en) | 2015-08-26 | 2015-10-09 | Earthing switch with utilize electric power static contact |
Country Status (1)
| Country | Link |
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| CN (1) | CN205081019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185609A (en) * | 2015-08-26 | 2015-12-23 | 江山市电器技术开发有限公司 | Grounding switch with static contact utilizing electrodynamic force |
-
2015
- 2015-10-09 CN CN201520778403.9U patent/CN205081019U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185609A (en) * | 2015-08-26 | 2015-12-23 | 江山市电器技术开发有限公司 | Grounding switch with static contact utilizing electrodynamic force |
| WO2017032160A1 (en) * | 2015-08-26 | 2017-03-02 | 江山市电器技术开发有限公司 | Earthing switch having electric-powered fixed contact |
| US10276313B2 (en) | 2015-08-26 | 2019-04-30 | Jiangshan Electrical Technology Development Co., Ltd. | High-voltage earthing switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |