CN201758242U - Static contact unit for secondary loop of circuit breaker - Google Patents
Static contact unit for secondary loop of circuit breaker Download PDFInfo
- Publication number
- CN201758242U CN201758242U CN2010201666286U CN201020166628U CN201758242U CN 201758242 U CN201758242 U CN 201758242U CN 2010201666286 U CN2010201666286 U CN 2010201666286U CN 201020166628 U CN201020166628 U CN 201020166628U CN 201758242 U CN201758242 U CN 201758242U
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- China
- Prior art keywords
- conducting strip
- pinching screw
- circuit breaker
- screw
- hole
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Abstract
The utility model relates to a conductive contact component for the secondary loop of a circuit breaker, specifically to a static contact unit for the secondary loop of a circuit breaker, which comprises a pedestal and a connection assembly consisting of a conductive strip and terminals. A flight of steps is arranged on the end face of the pedestal where an external lead is connected, and the inserting points of the terminals are corresponding to the steps one by one. Screwdriver apertures and external lead apertures are respectively provided on the vertical side surface and the upper surface of all steps. The terminal comprises a clamping part and a clamping screw, wherein the clamping part is corresponding to the external lead aperture, and the head of the clamping screw is corresponding to the screwdriver aperture. With the stepped end face, compaction type wiring manner controlled by screw is applied in a modularized static contact unit, thereby thoroughly solving the unreliability resulted by employing pressing sheet compressed wiring manner. The static contact unit is easy for wiring operation, firm in wiring and is not easy to be damaged.
Description
Technical field
The utility model relates to a kind of secondary circuit conductive contact member of circuit breaker, and the secondary circuit conductive contact member especially for the drawer type universal circuit breaker belongs to the electric connecting part in the low-voltage electrical apparatus field.
Background technology
Circuit breaker is found in that various it is of a great variety with in the electric line, wherein common a kind ofly will belong to withdrawable circuit breaker.On mechanical structure, described withdrawable circuit breaker comprises drawout chassis and breaker body; And from circuit structure, the circuit of described withdrawable circuit breaker can be divided into major loop and two piths of secondary circuit.Generally speaking, the plug-in type conduction contact base that is communicated with described secondary circuit is made of with stationary seat two parts the moving seat that cooperatively interacts.Described moving seat and stationary seat are installed in respectively on the drawout chassis of breaker body and circuit breaker.
In recent years, along with people to the updating of circuit breaker, withdrawable circuit breaker develops to miniaturization, modularization direction gradually.Modular described stationary seat generally is made up of a plurality of osculating elements that are arranged side by side.Described osculating element comprises a pedestal and a set of connections assembly that is inlaid in the pedestal, and described pedestal need adopt non-conducting material to manufacture, and described connector assembly is made up of conducting strip and binding post.Described binding post links to each other with an end of described conducting strip, is used to connect outer lead.The described conducting strip other end is used to connect moving seat and goes up corresponding link.
In the prior art, the connected mode that described binding post all adopts shell fragment to compress is to realize and being connected of outer lead, referring to Fig. 1.The disadvantage of this connected mode is that reliability is low.On the one hand, the pressure of shell fragment is limited, and is less to the restraining force of outer lead, and deviate from easily the termination of outer lead.And be infeasible by the reliability that the pressure that increases shell fragment improves connection, because can cause outer lead to insert difficulty like this.On the other hand, if exerted oneself the distortion of ambassador's shell fragment during external cabling, perhaps shell fragment is in for a long time maximum tension under and during the generation permanent deformation, all can causes outer lead and junction block loose contact.
Summary of the invention
The purpose of this utility model is the above-mentioned defective that the prior art that solves exists, and a kind of stationary seat osculating element that can reliably be connected with outer lead is provided.This project is mainly used in circuit breaker particularly in the withdrawable circuit breaker, with problems such as solving secondary circuit loose contact, lead and deviate from easily, terminal block is uncomfortable.
The technical scheme that addresses the above problem employing is: a kind of stationary seat osculating element that is used for the circuit breaker secondary circuit, comprise the pedestal that non-conducting material is manufactured and be inlaid in the interior set of connections assembly of described pedestal, described connector assembly is made up of with the binding post that is connected with conducting strip one end conducting strip.It is characterized in that, the end face that connects outer lead on the described pedestal is provided with the rank of organizing a performance, the setting-in position of each binding post is corresponding one by one with each step, offers screw tool bore and the outer lead access hole of leading to binding post respectively on the side elevation and the last plane of each step; Described binding post comprises the portion of fixing to clamp, removable clamping section and regulates described removable clamping section and the pinching screw that fixes to clamp portion's spacing, the corresponding described outer lead with the gap between the portion of fixing to clamp in described removable clamping section inserts the hole, and the fluting of the head of described pinching screw is over against described screw tool bore.
In the utility model,, successfully will be applied in the modularization stationary seat osculating element by the compression type mode of connection of screw control by the design of step end face.Thoroughly solved the existing unreliable problem of the shell fragment compression type mode of connection.Have that wiring is easy and simple to handle, wiring firmly, advantage such as not fragile, and adapt to domestic user's wiring custom, brought many convenience to the user.
In the utility model, the concrete structure of described binding post can have various ways, more typical a kind of structure is that a junction block that has a wiring hole is set, then in wiring hole the removable clamp clip that is provided with as removable clamping section, described pinching screw loose fit is assemblied on the described junction block, the end of thread of described pinching screw penetrates wiring hole by the junction block outside, and described clamp clip passes through the screwed hole spinning on pinching screw.In this connection terminal structure, described conducting strip can have three kinds of structures at least with being connected of binding post, and the firstth, conducting strip is connected with clamp clip, and the secondth, conducting strip is connected with junction block, the 3rd is in the perforate of conducting strip end, and the conducting strip end is sleeved on the described pinching screw.When selecting first kind of syndeton when---conducting strip is connected with clamp clip---, the side that pinching screw penetrates in the described wiring hole is the portion of fixing to clamp; When selecting second kind of syndeton when---conducting strip is connected with junction block---, if conducting strip is connected the wiring hole outside, the side that the described portion of fixing to clamp still penetrates for pinching screw in the described wiring hole; When selecting the third syndeton, if conducting strip end pinching screw in clamp clip and wiring hole penetrates between the side, then the end of described conducting strip is the described portion that fixes to clamp.
In above-mentioned connection terminal structure, the wiring hole of described junction block can also can be the open wells that three side sealing closes for circumferential closed closed hole.Both respectively have quality.Closed hole can constitute operative constraint to clamping piece, and once assembling, binding post just has a style of one's own, and each parts all can not separate easily, so that loses.But open wiring hole can be saved the junction block materials.When junction block adopts metal material, the effect of its saving will be more obvious.
When selecting the structure of closed wiring hole for use, the length of described pinching screw is advisable to run through whole wiring hole, and promptly the length of pinching screw is greater than the width of wiring hole on pinching screw is axial of described junction block.Can avoid when loosening clamp clip like this, clamp clip comes off from pinching screw.
When with the conducting strip end when fixing to clamp portion, described junction block even clamp clip can adopt nonmetallic materials to manufacture.This will reduce cost to a great extent.Conducting strip and junction block can certainly be designed to integrative-structure, directly bending forming after the punching press.Can save the assembling process of conducting strip and binding post like this, also have realistic meaning is necessarily arranged.
Consider from the angle of saving cost and simplification assembling process, the structure of the utility model middle connecting terminal can also be made a kind of improvement, promptly directly be the portion of fixing to clamp with the conducting strip end, other establishes a clamp clip as removable clamping section, on described conducting strip end and clamp clip, establish pilot hole respectively, described conducting strip end and clamp clip string are fitted together by pinching screw.Described clamp clip and conducting strip end cooperatively interact and realize clamping to outside terminal under the effects of pinching screw.
In this improvement project, conducting strip end and the clamp clip position relation on pinching screw also has multiple choices.Wherein a kind of possibility is: among conducting strip end and two parts of clamp clip, one pilot hole is the screwed hole with the threaded engagement of described pinching screw, another person's pilot hole is the plain bore with the pinching screw loose fit, and, be provided with the side that one of screwed hole is positioned at another person away from the head of screw.When on clamp clip screwed hole being set, described clamp clip should be subjected to the constraint of the groove of the described binding post of setting-in on the pedestal and can not rotate.Alternative dispensing means is: the pilot hole that is provided with on described conducting strip end and the clamp clip is the plain bore with the pinching screw loose fit, and a binding nut is set on described pinching screw simultaneously.On pinching screw, described conducting strip end and clamp clip are positioned at the side of head of the close screw of binding nut, and described binding nut should be subjected to the constraint of the groove of the described binding post of setting-in on the pedestal equally and can not rotate.
As a kind of improvement of the present utility model, side at described outer lead access hole and/or screw tool bore on the described pedestal is provided with dividing plate, after being assembled into stationary seat by a plurality of stationary seat osculating elements, described dividing plate can increase and faces the creepage distance between the same position hole on two stationary seat osculating elements mutually.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of stationary seat osculating element of the prior art.
Fig. 2 is the structural representation of a kind of embodiment of stationary seat osculating element described in the utility model.
Fig. 3 is the perspective view of stationary seat osculating element shown in Figure 2.
Fig. 4 is a connector assembly structural representation in the stationary seat osculating element shown in Figure 2.
Fig. 5 is the structural representation of connector assembly middle connecting terminal shown in Figure 4.
Fig. 6 is the perspective view of another embodiment of stationary seat osculating element described in the utility model.
Fig. 7 is the structural representation of connector assembly in the stationary seat osculating element shown in Figure 6.
The stationary seat structural representation of Fig. 8 for assembling by stationary seat osculating element shown in Figure 6.
Embodiment
With reference to Fig. 2,3, the utility model discloses a kind of stationary seat osculating element that is used for the circuit breaker secondary circuit, comprises the pedestal of being made by non-conducting material 6, and described pedestal 6 is provided with four embedding slots 2, setting-in one connector assembly in each embedding slot 2.Described connector assembly comprises binding post 4 and conducting strip 5, and described binding post 4 is assemblied in an end of described conducting strip 5.As shown in Figure 4.The setting-in position of corresponding four binding posts is provided with four steps on the described pedestal.The side elevation of each step is provided with a circular hole that leads to binding post, and the last plane of each step is provided with a square hole that leads to binding post.
With reference to Fig. 5, described binding post 4 comprises junction block 7, clamp clip 8 and pinching screw 9 with threaded hole, and described junction block 7 is a frame structure, can be referred to as wiring hole in its frame.Described pinching screw is assemblied on the side frame of junction block, and the end of thread of described pinching screw 9 stretches out from the relative side frame of junction block.Described clamp clip 8 spinnings are positioned at the junction block frame on pinching screw 9.Described clamp clip 8 is square, and the frame insied width of its width and junction block 7 is complementary.When rotating described pinching screw 9, clamp clip 8 moves axially along pinching screw 9 under the constraint of the frame of junction block 7.
In the present embodiment, described conducting strip 5 ends are fixed on the scuncheon of junction block 7, and in wiring hole, the neutral gear between conducting strip 5 and the clamp clip 8 is outer lead wiring position.Referring to Fig. 4.
In the present embodiment, after described connector assembly is assemblied on the described pedestal, the square hole 10 that the plane is offered on described conducting strip 5 and the just corresponding described step in the interval between the clamp clip 8.The spiral shell of described pinching screw emits the circular hole of offering over against described step side elevation 11.
Fig. 6 and Fig. 7 are another embodiment of the present utility model, can be described as the improvement to first embodiment, in this embodiment, a side end face that connects outer lead on the described pedestal 6 is adopted the step surface design equally, but as improvement, every facing mutually between two steps is provided with a dividing plate.After being assembled into stationary seat by a plurality of stationary seat osculating elements, described dividing plate has the effect that increases creepage distance.Described binding post 4 is the portion of fixing to clamp with the end of described conducting strip, establishes pilot hole, described pilot hole and described pinching screw loose fit with the conducting strip end respectively on clamp clip 8.On the screw rod of described pinching screw, the side away from screw head in described conducting strip end is equipped with a binding nut 13.The groove width at these binding nut 13 places of setting-in matches on the inscribed circle diameter of described binding nut 13 and the pedestal.
What should be understood that is: the foregoing description is just to explanation of the present utility model, rather than to restriction of the present utility model, any utility model that does not exceed in the utility model connotation scope is created, and all falls within the protection range of the present utility model.
Claims (8)
1. stationary seat osculating element that is used for the circuit breaker secondary circuit, comprise the pedestal (6) that non-conducting material is manufactured and be inlaid in the interior set of connections assembly of described pedestal (6), described connector assembly is made up of with the binding post (4) that is connected with described conducting strip (5) one ends conducting strip (5), it is characterized in that, the end face that described pedestal (6) go up to connect outer lead is provided with the rank of organizing a performance, the setting-in position of each binding post (4) is corresponding one by one with each step, offers screw tool bore (11) and the outer lead access hole (10) of leading to binding post respectively on the side elevation and the last plane of each step; Described binding post (4) comprises the portion of fixing to clamp, removable clamping section and regulates described removable clamping section and the pinching screw (9) that fixes to clamp portion's spacing, the corresponding outer lead with the gap between the portion of fixing to clamp in described removable clamping section inserts hole (10), and the fluting of the head of described pinching screw (9) is over against described screw tool bore (11).
2. a kind of stationary seat osculating element that is used for the circuit breaker secondary circuit according to claim 1, it is characterized in that, described binding post (4) is made up of the junction block that is provided with wiring hole (7), the clamp clip (8) and the described pinching screw (9) that are removably set in the wiring hole, described pinching screw (9) loose fit is assemblied on the described junction block (7), the end of thread of described pinching screw penetrates wiring hole by the outside of described junction block (7), and described clamp clip (8) passes through the screwed hole spinning on described pinching screw (9).
3. a kind of stationary seat osculating element that is used for the circuit breaker secondary circuit according to claim 2, it is characterized in that, described conducting strip (5) end is sleeved on the described pinching screw (9) by the pilot hole on it, and the end of described conducting strip (5) is fixed on the wiring hole inboard of described junction block (7).
4. a kind of stationary seat osculating element that is used for the circuit breaker secondary circuit according to claim 1, it is characterized in that, the described portion of fixing to clamp is the end of described conducting strip (5), described removable clamping section is a clamp clip (8), and the end of described conducting strip (5) and clamp clip (8) are sleeved on the described pinching screw (9) by pilot hole separately.
5. a kind of stationary seat osculating element that is used for the circuit breaker secondary circuit according to claim 4, it is characterized in that, pilot hole on the described clamp clip (8) is a screwed hole, and the end of described conducting strip (5) is positioned at the side of described clamp clip (8) near the head of pinching screw.
6. a kind of stationary seat osculating element that is used for the circuit breaker secondary circuit according to claim 4, it is characterized in that, the pilot hole of the end of described conducting strip (5) is a screwed hole, and the end of described conducting strip (5) is positioned at the side of described clamp clip (8) away from the head of pinching screw.
7. a kind of stationary seat osculating element that is used for the circuit breaker secondary circuit according to claim 4, it is characterized in that, pilot hole on the end of described conducting strip (5) and the clamp clip (8) is the plain bore with the pinching screw loose fit, on the screw rod of described pinching screw, be equipped with a binding nut (13) in the side away from the head of pinching screw of the end of described conducting strip (5) and clamp clip (8).
8. according to each described a kind of stationary seat osculating element that is used for the circuit breaker secondary circuit of claim 1-7, it is characterized in that the side at described outer lead access hole (10) and/or screw tool bore (11) on the described pedestal is provided with dividing plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201666286U CN201758242U (en) | 2009-04-16 | 2010-04-01 | Static contact unit for secondary loop of circuit breaker |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920117832 | 2009-04-16 | ||
| CN200920117832.6 | 2009-04-16 | ||
| CN2010201666286U CN201758242U (en) | 2009-04-16 | 2010-04-01 | Static contact unit for secondary loop of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201758242U true CN201758242U (en) | 2011-03-09 |
Family
ID=43645530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201666286U Expired - Lifetime CN201758242U (en) | 2009-04-16 | 2010-04-01 | Static contact unit for secondary loop of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201758242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957762A (en) * | 2016-06-12 | 2016-09-21 | 刘凡 | Pneumatic type knife switch |
-
2010
- 2010-04-01 CN CN2010201666286U patent/CN201758242U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957762A (en) * | 2016-06-12 | 2016-09-21 | 刘凡 | Pneumatic type knife switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110309 |