CN210272225U - Bridge-shaped contact of circuit breaker - Google Patents
Bridge-shaped contact of circuit breaker Download PDFInfo
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- CN210272225U CN210272225U CN201921705378.6U CN201921705378U CN210272225U CN 210272225 U CN210272225 U CN 210272225U CN 201921705378 U CN201921705378 U CN 201921705378U CN 210272225 U CN210272225 U CN 210272225U
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- conducting strip
- circuit breaker
- conducting
- bridge contact
- support
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Abstract
The utility model discloses a circuit breaker bridge contact that can not cause the improvement of temperature rise and the decline of current-carrying capacity because of the swing of conducting strip row. The technical scheme adopted comprises the following steps: support and relative setting are in two conducting strip rows of support both sides, support and conducting strip row form and have two open-ended H type structures, two openings include with electrically conductive female first opening of being connected and the second opening of being connected with circuit breaker body copper bar of arranging, every conducting strip arrange including at least 2 conducting strip groups that set up side by side. The advantages are that: regardless of the swinging of the conducting strip, the conducting strip is always kept in contact with a larger contact surface, so that the temperature rise and the reduction of the current-carrying capacity are effectively prevented.
Description
Technical Field
The utility model relates to a circuit breaker bridge contact.
Background
Breaker bridge type contact is in including support and relative setting two conducting strip rows of support both sides, support and conducting strip row form and have two open-ended H type structures, two openings include with electrically conductive female first opening of being connected and the second opening of being connected with circuit breaker body copper bar of arranging, every conducting strip row including at least 2 conducting strip groups that set up side by side, every conducting strip group includes two independent conducting strips, two conducting strips of conducting strip group between assemble the back and form the clearance, conducting strip group on two conducting strip rows corresponds the setting, is equipped with the extension spring between two conducting strip groups of corresponding setting, the extension spring both ends pass two conducting strip group's clearance respectively and set up the extension spring mounting shaft on conducting strip group. The conventional bridge-type contacts of circuit breakers have the following disadvantages: when the circuit breaker body copper bar is not connected with the second opening on the same horizontal plane (generally caused by installation or process errors), the two conducting strip bars can swing upwards or downwards, the original surface contact between the conducting strip bars and the conducting strip bars can be changed into point contact, and then the temperature rise and the current-carrying capacity are improved.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a circuit breaker bridge contact that can not cause the improvement of temperature rise and the decline of current-carrying capacity because of the swing of conducting strip row.
In order to solve the above problem, the utility model discloses a technical scheme include: support and relative setting are in two conducting strip rows of support both sides, support and conducting strip row form and have two open-ended H type structures, two openings include with electrically conductive female first opening of being connected and the second opening of being connected with circuit breaker body copper bar of arranging, every conducting strip row including at least 2 conducting strip groups that set up side by side, every conducting strip group includes two independent conducting strips, two conducting strips of conducting strip group between assemble the back and form the clearance, the conducting strip group on two conducting strip rows corresponds the setting, is equipped with the extension spring between two conducting strip groups of corresponding setting, the extension spring both ends are passed two conducting strip group's clearance respectively and are connected its characterized in that with the extension spring mounting shaft that sets up on conducting strip group: every the conducting strip correspond first opening side's tip be equipped with the arc convex surface, be equipped with on the last lower surface of electrically conductive female arranging front end with the arc concave surface that the arc convex surface suits, the conducting strip with electrically conductive female arranging between through the cooperation of arc convex surface and arc concave surface carries out the face contact.
The bridge-shaped contact of the circuit breaker is characterized in that: the side surfaces of the two conducting strips of the conducting strip group are provided with at least 2 corresponding salient points, and gaps are formed by the salient points in an isolation mode.
The bridge-shaped contact of the circuit breaker is characterized in that: the surface of the bracket is provided with a first air hole corresponding to each conducting sheet group.
The bridge-shaped contact of the circuit breaker is characterized in that: the end part of each conducting strip corresponding to the first opening side is connected with the bracket through a connecting shaft, and the connecting shaft penetrates through a kidney-shaped hole in the end part of the conducting strip.
The bridge-shaped contact of the circuit breaker is characterized in that: the edge of one end face of the conductive busbar is provided with a raised positioning step, and the positioning step is matched with the included angle of one side of the arc-shaped convex face corresponding to the conductive sheet in a positioning manner.
The bridge-shaped contact of the circuit breaker is characterized in that: and gaskets are arranged on two sides of the conducting strip.
The bridge-shaped contact of the circuit breaker is characterized in that: and a second air hole is formed in the end part, corresponding to the second opening side, of each conducting plate.
The bridge-shaped contact of the circuit breaker is characterized in that: the support include by the integrative stamping forming's of sheet metal panel with be located the curb plate at panel both ends, curb plate both ends be equipped with the connecting axle mounting hole.
The bridge-shaped contact of the circuit breaker is characterized in that: every conducting strip upper end be equipped with be used for to the constant head tank of extension spring installation axle location.
The bridge-shaped contact of the circuit breaker is characterized in that: the conductive busbar comprises a front section and a rear section, wherein the front section is thinner than the rear section, and a first connecting hole and a second connecting hole are respectively formed in the front section and the rear section correspondingly.
The utility model discloses a circuit breaker bridge contact advantage: 1. no matter how the conducting strip swings, the conducting strip and the conducting strip are always in contact with each other with a larger contact surface, so that the temperature rise and the reduction of the current-carrying capacity are effectively prevented; 2. because the temperature rise (the traditional normal state temperature rise is about 60 ℃, the normal state temperature rise is more than 70 ℃, and the current rise is between 50 and 60 ℃) is reduced and the current-carrying capacity is improved, the conductive busbar can be made thinner, and the cost is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a bridge contact of a circuit breaker of the present invention;
fig. 2 is an exploded view of a bridge contact of the circuit breaker of the present invention;
FIG. 3 is a front view of a bridge contact of the circuit breaker of the present invention;
fig. 4 is a schematic structural view of 2 sets of conductive sheets arranged side by side according to the present invention;
FIG. 5 is a schematic view of the conductive sheet of the present invention;
fig. 6 is a schematic structural view of the bracket of the present invention.
Detailed Description
As shown in fig. 1 to 6, the bridge contact for circuit breaker of the present invention comprises a support 1 and two opposite conducting strip rows 2 disposed on two sides of the support 1. Support 1 include by the integrative stamping forming's of sheet metal panel 22 with be located the curb plate 23 at panel 22 both ends, curb plate 23 both ends be equipped with connecting axle mounting hole 24. The conducting strip 2 is provided with spacers 20 on two sides, and the spacers 20 are clamped between the side plates 23 and the conducting strip 2. The support 1 and the conducting strip 2 form an H-shaped structure with two openings, and the two openings comprise a first opening 4 connected with the conducting strip 3 and a second opening 5 connected with a circuit breaker body copper bar. Each row 2 of conducting strips comprises a plurality (usually 8) of conducting strip groups 6 arranged side by side, and each conducting strip group 6 comprises two independent conducting strips 7. The two conducting strips 7 of the conducting strip group 6 are assembled to form a gap 8, the conducting strip groups 6 on the two conducting strip rows 2 are correspondingly arranged, and a tension spring 9 is arranged between the two correspondingly arranged conducting strip groups 6. And two ends of the tension spring 9 respectively penetrate through the gaps 8 of the two conducting plate groups 6 to be connected with a tension spring mounting shaft 10 arranged on the conducting plate groups 6. Every conducting strip 7 correspond the tip of first opening 4 side is equipped with arc convex surface 11, be equipped with on the last lower surface of electrically conductive female 3 front end with arc concave surface 12 that arc convex surface 11 suited, conducting strip 7 with electrically conductive female arranging 3 between through the cooperation of arc convex surface 11 and arc concave surface 12 carries out the face contact.
Furthermore, the side surfaces of the two conducting strips 7 of the conducting strip group 6 are provided with 2 corresponding salient points 13, and the salient points 13 are distributed at two ends of the side surface of the conducting strip 7 at intervals and are separated by the salient points 13 to form gaps 14. The single bump 13 is about 1mm thick, and the bump 13 is formed by punching the conductive sheet 7.
Furthermore, a first air hole 15 is formed in the surface of the support 1 corresponding to each conducting strip group 6. The hot air in the bracket 1 can be effectively diffused through the first air holes 15, so that the aim of reducing the temperature rise is fulfilled.
Furthermore, every conducting strip 7 correspond the tip of first opening 4 side with support 1 between connect through connecting axle 17, connecting axle 17 both ends are fixed in connecting axle mounting hole 24 on the curb plate 23 of support 1, connecting axle 17 in the middle wear to establish conducting strip 7 tip the waist shape hole 16 in, make conducting strip 7 can open and fold through waist shape hole 16.
Furthermore, one of the end face edges of the conductive busbar 3 is provided with a raised positioning step 18, and the conductive busbar 3 can be stably clamped in the first opening 4 of the conductive busbar 2 to prevent falling off through the positioning step 18 and the included angle 19 of one side of the arc-shaped convex surface 11 corresponding to the conductive sheet 7 in a positioning fit manner.
Furthermore, a second air hole 21 is formed in the end portion, corresponding to the second opening 5 side, of each conducting strip 7, so that a heat dissipation effect is achieved.
Further, every conducting strip 7 upper end be equipped with be used for right the constant head tank 25 that extension spring installation axle 10 was fixed a extension spring installation axle 10 prevents that it from removing or droing.
Further, the conductive busbar 3 includes a front section 26 and a rear section 27, the front section 26 is thinner than the rear section 27 to form a step structure, and a first connection hole 28 and a second connection hole 29 are respectively disposed on the front section 26 and the rear section 27. Due to the step structure, after the connecting frame is installed in the first connecting hole 28 of the front section 26, the structure is more stable, and in addition, the material of the conductive busbar 3 is saved.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a circuit breaker bridge contact, is in including support (1) and relative setting two conducting strip rows (2) of support (1) both sides, support (1) and conducting strip row (2) form and have two open-ended H type structures, two openings include first opening (4) of being connected with electrically conductive female arranging (3) and second opening (5) of being connected with circuit breaker body copper bar, every conducting strip row (2) including at least 2 conducting strip group (6) that set up side by side, every conducting strip group (6) include two independent conducting strip (7), two conducting strip (7) of conducting strip group (6) between assemble back and form clearance (8), conducting strip group (6) on two conducting strip rows (2) correspond the setting, are equipped with extension spring (9) between two conducting strip groups (6) of corresponding setting, clearance (8) that two conducting strip groups (6) were passed respectively at extension spring (9) both ends are with set up at electrically conductive piece group (6) and are being in electrically conductive Extension spring installation axle (10) on piece group (6) are connected, its characterized in that: every conducting strip (7) correspond the tip of first opening (4) side is equipped with arc convex surface (11), be equipped with on the last lower surface of electrically conductive female arranging (3) front end with arc concave surface (12) that arc convex surface (11) suit, conducting strip (7) with electrically conductive female arranging (3) between pass through the cooperation of arc convex surface (11) and arc concave surface (12) carries out the face contact.
2. The circuit breaker bridge contact of claim 1, wherein: the side surfaces of the two conducting strips (7) of the conducting strip group (6) are provided with at least 2 corresponding salient points (13), and gaps (14) are formed by the salient points (13) in a separated mode.
3. The circuit breaker bridge contact of claim 1, wherein: the surface of the bracket (1) is provided with a first air hole (15) corresponding to each conducting sheet group (6).
4. The circuit breaker bridge contact of claim 1, wherein: every conducting strip (7) correspond the tip of first opening (4) side with support (1) between connect through connecting axle (17), just connecting axle (17) wear to establish conducting strip (7) tip waist shape hole (16) in.
5. The circuit breaker bridge contact of claim 1, wherein: conductive bus bar (3) wherein one of them terminal surface edge be equipped with bellied location step (18), through location step (18) with conducting strip (7) correspond contained angle (19) location fit on one side of arc convex surface (11).
6. The circuit breaker bridge contact of claim 1, wherein: and gaskets (20) are arranged on two sides of the conducting strip (2).
7. The circuit breaker bridge contact of claim 1, wherein: and a second air hole (21) is formed in the end part of each conducting strip (7) corresponding to the side of the second opening (5).
8. The circuit breaker bridge contact of claim 1, wherein: support (1) include by the integrative stamping forming's of sheet metal panel (22) and be located curb plate (23) at panel (22) both ends, curb plate (23) both ends be equipped with connecting axle mounting hole (24).
9. The circuit breaker bridge contact of claim 1, wherein: and a positioning groove (25) for positioning the tension spring mounting shaft (10) is arranged at the upper end of each conducting plate (7).
10. The circuit breaker bridge contact of claim 1, wherein: the conductive busbar (3) comprises a front section (26) and a rear section (27), wherein the front section (26) is thinner than the rear section (27), and a first connecting hole (28) and a second connecting hole (29) are respectively formed in the front section (26) and the rear section (27) correspondingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705378.6U CN210272225U (en) | 2019-10-12 | 2019-10-12 | Bridge-shaped contact of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705378.6U CN210272225U (en) | 2019-10-12 | 2019-10-12 | Bridge-shaped contact of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210272225U true CN210272225U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921705378.6U Active CN210272225U (en) | 2019-10-12 | 2019-10-12 | Bridge-shaped contact of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210272225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635211A (en) * | 2020-12-18 | 2021-04-09 | 双城市机电技术开发有限公司 | Heavy current moving contact structure |
-
2019
- 2019-10-12 CN CN201921705378.6U patent/CN210272225U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635211A (en) * | 2020-12-18 | 2021-04-09 | 双城市机电技术开发有限公司 | Heavy current moving contact structure |
| CN112635211B (en) * | 2020-12-18 | 2023-11-03 | 双城市机电技术开发有限公司 | Heavy current moving contact structure |
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