CN201522958U - Grounding connection sheet and corresponding grounding switch on air insulation switch device - Google Patents
Grounding connection sheet and corresponding grounding switch on air insulation switch device Download PDFInfo
- Publication number
- CN201522958U CN201522958U CN2009202694609U CN200920269460U CN201522958U CN 201522958 U CN201522958 U CN 201522958U CN 2009202694609 U CN2009202694609 U CN 2009202694609U CN 200920269460 U CN200920269460 U CN 200920269460U CN 201522958 U CN201522958 U CN 201522958U
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- CN
- China
- Prior art keywords
- ground connection
- earthed switch
- conductive
- grounding
- sheet
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Abstract
The utility model provides a grounding connection sheet of a grounding switch on an air insulation switch device and a grounding switch using the connection sheet. The grounding connection sheet made of a conductive metal sheet is characterized by comprising a fixed end (21), a middle portion (22) and a conductive contact sheet (23); a fixed hole (211) arranged on the fixed end (21) is used for fixing the grounding connection sheet onto a grounding switch support (5); the middle portion (22) and the conductive contact sheet (23) are in tooth-shaped structures; and the conductive contact sheet (23) is used for closely contacting with a conductive connection rod (4). The grounding connection sheet adopts a copper sheet, and the surface of the grounding connection sheet is plated with silver. The grounding connection sheet further comprises a supporting spring plate (3) used for enabling the conductive contact sheet (23) to closely contact with the conductive connection rod (4). The grounding connection switch has compact and reliable grounding connection structure, simplifies structure and saves cost due to the fact that a spring is installed on only a support.
Description
Technical field
The utility model belongs to the power product technical field, is specifically related to a kind of earthed switch that is applied on the air insulation switchgear.
Background technology
The air insulation switchgear is generally used for a plurality of electrical loads are connected to common electric bus, and common a plurality of switchgear, and the one side is connected to common bus and opposite side is connected to various electrical loads; These switchgears provide electic protection so that in improper current status process, for example overload or make the load insulation during short-circuit condition.
The air insulation switchgear generally includes an earthed switch, and it allows line terminal or bus termination to be grounded to guarantee personal safety, and it is also very important in the course of normal operation of switchgear assemblies.Before with line terminal or bus termination ground connection, may be owing to mistake with alive circuit ground connection.In the process that center line is safeguarded before carrying out switch closure, when the upstream power supply is switched on unintentionally, will produce another kind of dangerous situation.In these two kinds of situations, the function by institute's use earthed switch can effectively prevent to wound operating personnel and equipment is caused damage.
As shown in Figure 1, adopt two flexible bare copper wires 11 to connect conductive link and ground connection cutter 13 in the existing earthed switch usually, make electric current flow to the ground connection cutter by bare copper wire 11.All adopt spring 12 at left and right sides support in the existing earthed switch, so that earthed switch when closing a floodgate, makes ground connection cutter and fixed contact connect.
Existing earthed switch uses the connected mode of flexible bare copper wire, must guarantee during installation that copper conductor is close to earthed switch all the time and installs on the side plate when ground connection separating brake position, otherwise can bring Insulation Problems.In addition, adopt the connected mode of flexible copper lead, when doing short time withstand current test, the flexible copper lead can influence passing through of test striking sparks the starting the arc under the electrodynamic effect and between the cabinet.In addition, in the support of the left and right sides, use two springs, increased manufacturing cost, also make design more complicated.
Therefore, it is more simple to be starved of a kind of project organization in the electric power system, can reliably bear the earthed switch of earth current again.
The utility model content
A purpose of the present utility model is to provide a kind of ground connection brace of earthed switch, but its make by a conductive metal sheet, comprise stiff end, mid portion and conductive contact blade; Fixing hole is arranged on the stiff end, be used for the ground connection brace is fixed in the earthed switch support; Mid portion and conductive contact blade are dentalation, and conductive contact blade is used for contacting closely with conductive link.
According to most preferred embodiment of the present utility model, the ground connection brace is preferably adopted and is copper sheet, and at electroplate, to improve the conductivity of ground connection brace.
According to most preferred embodiment of the present utility model, the ground connection brace comprises that also a support shell fragment is used to make conductive contact blade to contact closely with conductive link; Support shell fragment and comprise stiff end and support end that stiff end has the support fixation hole, supports the dentalation of end for matching with the ground connection brace.Support shell fragment and preferably use the high resiliency steel disc.
A purpose of the present utility model is to provide a kind of earthed switch, and it comprises earthed switch support and conductive link, and the ground connection cutter is arranged on the conductive link, also comprises aforesaid ground connection brace.
According to preferred embodiment of the present utility model, in the switch bracket of the left and right sides, have only one to comprise spring assembly, spring assembly connects a triangle operating mechanism.
Earthed switch of the present utility model also comprises the dentation fixed contact that matches with the ground connection cutter.
Description of drawings
Fig. 1 is the structural representation of existing earthed switch;
Fig. 2 is the grounding connection piece structure schematic diagram of earthed switch of the present utility model;
Fig. 3 is the support elastic piece structure schematic diagram of ground connection brace;
Fig. 4 is an earthed switch stereochemical structure view of the present utility model;
Fig. 5 is the front view of utility model earthed switch;
Fig. 6 is that the ground connection brace is supporting the sectional view that contacts closely with conductive link under the shell fragment pressure;
Fig. 7 is the ground connection brace at the stereogram that supports under the shell fragment pressure with the close contact portion of conductive link;
Fig. 8 is an earthed switch right side support amplification rearview;
Fig. 9 is earthed switch and fixed contact connection diagram.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, most preferred embodiment of the present utility model is described in more detail.
Figure 2 shows that the grounding connection piece structure schematic diagram of earthed switch of the present utility model, but its make by a conductive metal sheet, comprise stiff end 21, mid portion 22 and conductive contact blade 23; Fixing hole 211 is arranged on the stiff end 21, be used for ground connection brace 2 is fixed in earthed switch support 5; Mid portion 22 and conductive contact blade 23 are dentalation, and conductive contact blade 23 is used for contacting closely with conductive link 4.According to most preferred embodiment of the present utility model, the ground connection brace adopts copper sheet, and does silver-plated processing on the surface, to improve the electric conductivity of ground connection brace.
Figure 3 shows that the support shell fragment 3 of ground connection brace of the present utility model, it is used to make conductive contact blade 23 to contact closely with conductive link 4.Described support shell fragment 3 comprises stiff end 31 and supports end 32 that stiff end 31 has support fixation hole 311, supports the dentalation of end 32 for matching with conductive contact blade 23.Support shell fragment 3 and preferably be adopted as the high resiliency steel disc.
Figure 4 shows that earthed switch of the present utility model, comprise earthed switch support 5 and conductive link 4, ground connection cutter 41 is arranged on the conductive link 4, and adopt aforesaid ground connection brace 2.
According to preferred embodiment of the present utility model, in the left and right sides switch bracket 5, have only right switch bracket to comprise spring assembly 51, spring assembly 51 should connect a triangle operating mechanism 52.
Earthed switch also comprises the dentation fixed contact 6 that cooperates with ground connection cutter 41.
Figure 5 shows that the front view of earthed switch, among the figure as can be seen earthed switch comprise two ground connection braces 2, be individually fixed on the left and right switch bracket.Fig. 6 and Fig. 7 are illustrated under the active force that supports shell fragment 3, and ground connection brace 2 contacts closely with conductive link 4.
Earthed switch of the present utility model, contact between ground connection brace 2 and the conductive link 4 closely, therefore compact conformation and be rigidity not only can bear earth current reliably, and has avoided the fixing insulation and the arch problem of having struck sparks that is brought in flexible bare copper wire position.
Figure 8 shows that earthed switch right side support amplification rearview, when operating mechanism carried out the earthed switch feed motion, the triangle operating structure 52 that connecting rod drives earthed switch moved upward, thereby drove conductive link 4 motions, ground connection cutter 41 is connected, as shown in Figure 9 with fixed contact 6.
Although disclose preferred embodiment of the present utility model and accompanying drawing for the purpose of illustration, the person skilled in the art in the spirit and scope that do not break away from the utility model and appended claim, can do various replacements, variation and retouching.Therefore, the utility model should not be limited to preferred embodiment and the disclosed content of accompanying drawing, and protection range of the present utility model is as the criterion with the scope that appending claims was defined.
Claims (10)
1. the ground connection brace of an earthed switch, but its make by a conductive metal sheet, it is characterized in that: comprise stiff end (21), mid portion (22) and conductive contact blade (23); Fixing hole (211) is arranged on the stiff end (21), be used for ground connection brace (2) is fixed in earthed switch support (5); Mid portion (22) and conductive contact blade (23) are dentalation, and conductive contact blade (23) is used for contacting closely with conductive link (4).
2. ground connection brace according to claim 1 is characterized in that: the ground connection brace is a copper sheet.
3. ground connection brace according to claim 1 is characterized in that: ground connection brace electroplate.
4. ground connection brace according to claim 1 is characterized in that: comprise that also a support shell fragment (3) is used to make conductive contact blade (23) to contact closely with conductive link (4).
5. ground connection brace according to claim 4 is characterized in that: support shell fragment (3) and comprise stiff end (31) and support end (32) that stiff end (31) has support fixation hole (311), supports that end (32) is a dentalation.
6. ground connection brace according to claim 4 is characterized in that: supporting shell fragment (3) is the high resiliency steel disc.
7. an earthed switch comprises earthed switch support (5) and conductive link, and ground connection cutter (41) is arranged on the conductive link (4), it is characterized in that: comprise any described ground connection brace (2) among the claim 1-6.
8. earthed switch according to claim 7 is characterized in that: in the left and right sides switch bracket (5), have only one to comprise spring assembly (51).
9. earthed switch according to claim 8 is characterized in that: spring assembly (51) connects a triangle operating mechanism (52).
10. earthed switch according to claim 7 is characterized in that: also comprise fixed contact (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202694609U CN201522958U (en) | 2009-11-03 | 2009-11-03 | Grounding connection sheet and corresponding grounding switch on air insulation switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202694609U CN201522958U (en) | 2009-11-03 | 2009-11-03 | Grounding connection sheet and corresponding grounding switch on air insulation switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201522958U true CN201522958U (en) | 2010-07-07 |
Family
ID=42509134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202694609U Expired - Fee Related CN201522958U (en) | 2009-11-03 | 2009-11-03 | Grounding connection sheet and corresponding grounding switch on air insulation switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201522958U (en) |
-
2009
- 2009-11-03 CN CN2009202694609U patent/CN201522958U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20131103 |