CN110752127A - Internal circuit fixing structure for circuit breaker - Google Patents
Internal circuit fixing structure for circuit breaker Download PDFInfo
- Publication number
- CN110752127A CN110752127A CN201911015652.1A CN201911015652A CN110752127A CN 110752127 A CN110752127 A CN 110752127A CN 201911015652 A CN201911015652 A CN 201911015652A CN 110752127 A CN110752127 A CN 110752127A
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- China
- Prior art keywords
- circuit
- contact
- shell
- cavity
- connecting cylinder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/20—Terminals; Connections
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Abstract
The invention relates to an internal circuit fixing structure for a circuit breaker, which comprises a shell, wherein a circuit cavity is formed in the shell, two external circuit mechanisms are symmetrically arranged at the upper side and the lower side of the circuit cavity, an internal circuit mechanism is fixedly arranged in the circuit cavity, the internal circuit mechanism comprises a fixed column, one end of the fixed column is fixedly connected to the inner wall of the circuit cavity, the other end of the fixed column is fixedly connected to the outer wall of a vertically arranged connecting cylinder, the interior of the connecting cylinder is vertical and hollow, the middle-lower section in the connecting cylinder is slidably connected with a sliding sleeve, a first contact is arranged in the sliding sleeve in a penetrating manner, and the first contact can be contacted with a second contact at the middle-upper section in the connecting cylinder through; the cover plate is buckled on the front side of the shell, and the internal circuit fixing structure for the circuit breaker is simple and reasonable in structure and can effectively ensure that the running track of the contact cannot deviate.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an internal circuit fixing structure for a circuit breaker.
Background
The circuit breaker is a switching device which can close, bear and break the current under the condition of a normal loop and can close, bear and break the current under the condition of an abnormal loop within a specified time, the circuit breaker is connected at the middle position of a power line, a load circuit can be cut off and connected through the circuit breaker, the circuit breaker can further prevent the accident from expanding and ensure the safe operation of the circuit, the inside of the circuit breaker controls the circuit to be communicated through an internal circuit mechanism, the circuit mechanism inside the circuit breaker in the prior art is respectively connected with two ends of the power line through two contacts and achieves the effect of controlling the circuit to be opened and closed through controlling the contact to be contacted and separated, the contacts are divided into a movable contact and a fixed contact, the movable contact is contacted with the fixed contact in a rotating way, and the contact in the contact way can cause the deviation of the operation track of the movable contact after long-term, consequently, two contacts can not be contacted, and the circuit breaker can not work normally.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide an internal circuit fixing structure for a circuit breaker, which is simple and reasonable in structure and can effectively ensure that the running track of a contact does not deviate.
In order to solve the technical problems, the technical scheme of the invention is as follows: an internal circuit fixing structure for a circuit breaker comprises a shell, wherein a circuit cavity is formed in the shell, two external circuit mechanisms are symmetrically arranged on the upper side and the lower side of the circuit cavity, an internal circuit mechanism is fixedly arranged in the circuit cavity and comprises a fixing column, one end of the fixing column is fixedly connected to the inner wall of the circuit cavity, the other end of the fixing column is fixedly connected to the outer wall of a vertically arranged connecting cylinder, the inside of the connecting cylinder is vertical and hollow, a sliding sleeve is slidably connected to the middle-lower section in the connecting cylinder, a first contact is arranged in the sliding sleeve in a penetrating manner, and the first contact can be contacted with a second contact on the middle-upper section in the connecting cylinder through an elastic sliding device; the front side of the shell is buckled with a cover plate.
Furthermore, the outer circuit mechanism above the circuit cavity comprises a circuit groove, the circuit groove is arranged on the front end face of the shell and communicated with the circuit cavity, the upper portion of the circuit groove is communicated with a wire inlet hole, the wire inlet hole extends upwards to form the shell, a copper sheet is fixedly arranged on the right end face in the circuit groove, a power line is inserted in the wire inlet hole from top to bottom, a threaded hole perpendicular to and communicated with the circuit groove is formed in the front side surface of the shell, the threaded hole extends out of the shell towards the left, and the power line and the copper sheet are connected into the circuit groove in a threaded mode from the left to the right through a bolt.
Further, the inner wall in entrance hole has seted up the fixed slot, and this fixed slot is towards the front and back, control and extend, the fixed block of joint in the fixed slot inside has set firmly on the surface of power cord.
Further, the elastic sliding device comprises a sliding block, the right end of the sliding block is fixedly connected to the outer surface of the left side of the sliding sleeve, a sliding groove for the sliding block to slide up and down is formed in the connecting cylinder from the right side to the left side, the sliding block extends out of the sliding groove towards the left side, the upper surface of the extending end of the sliding groove is fixedly connected with a vertical spring, the upper end of the spring is fixedly connected to the lower end of a fixing plate, and the fixing plate is fixedly connected to the outer surface of the connecting cylinder.
Further, the first contact is vertically arranged in the sliding sleeve and fixed; the nearly upper end department inside of connecting cylinder sets firmly the solid fixed ring that two intervals were arranged, and the joint has the joint ring between two solid fixed rings, the joint ring is worn to establish and is fixed vertically to the second contact, and the second contact is in same vertical axis with first contact.
Furthermore, the outer circuit mechanism positioned below the circuit cavity and the outer circuit mechanism positioned above the circuit cavity are vertically symmetrical, and a copper sheet in the outer circuit mechanism below is connected with the first contact through a first circuit; the copper sheet in the upper external circuit mechanism is connected with the second contact through a second circuit.
Furthermore, the shell is provided with two threaded holes which are symmetrical up and down so that the cover plate is connected with the shell through bolts.
Compared with the prior art, the invention has the following beneficial effects: the movable track of the first contact is controlled through the setting of the connecting cylinder, the first contact is driven to slide in the connecting cylinder through the sliding sleeve, the first contact is limited through the sliding block and the sliding groove, the clamping ring is clamped and fixed through the two fixing rings, the second contact is fixedly connected with the connecting cylinder, the sliding block can be pushed to move towards the fixed second contact through the sliding sleeve, the sliding block can be pushed to move back through the spring, the second contact is kept away from the first contact, the movable track of the first contact is kept fixed all the time, the first contact is prevented from being contacted with the second contact due to the deviation of the movable track, and the normal operation of the circuit breaker is guaranteed, and the movable track of the contact cannot deviate.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic configuration diagram of an embodiment of the present invention;
FIG. 2 is a side view of an embodiment of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 1;
FIG. 4 is an enlarged view of the structure at B in FIG. 1;
fig. 5 is an enlarged view of the structure at C in fig. 1.
In the figure: the circuit comprises a shell 1, a cover plate 2, a circuit cavity 3, an outer circuit mechanism 4, a wire inlet hole 41, a circuit groove 42, a power wire 43, a fixing groove 44, a fixing block 45, a copper sheet 46, a threaded hole 47, a bolt 48, a first connecting circuit 5, a second connecting circuit 6, an inner circuit mechanism 7, a fixing column 71, a connecting cylinder 72, a sliding sleeve 73, a first contact 74, a sliding block 75, a sliding groove 76, a fixing plate 77, a spring 78, a fixing ring 79, a clamping ring 710, a second contact 711, a second threaded hole 8 and an elastic sliding device 9.
Detailed Description
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1 to 5, an internal circuit fixing structure for a circuit breaker includes a housing 1, a circuit cavity 3 is formed in the housing, two external circuit mechanisms 4 are symmetrically arranged on the upper and lower sides of the circuit cavity, an internal circuit mechanism 7 is fixedly arranged in the circuit cavity, the internal circuit mechanism includes a fixing column 71, one end of the fixing column is fixedly connected to the inner wall of the circuit cavity, the other end of the fixing column is fixedly connected to the outer wall of a vertically arranged connecting cylinder 72, the connecting cylinder is vertically hollow, the middle-lower section in the connecting cylinder is slidably connected with a sliding sleeve 73, a first contact 74 is penetrated in the sliding sleeve, and the first contact can be in contact with a second contact 711 on the middle-upper section in the connecting cylinder through an elastic sliding device; the front side of the shell is buckled with a cover plate 2.
In the embodiment of the invention, the external circuit mechanism above the circuit cavity comprises a circuit groove 42, the circuit groove is arranged on the front end face of the shell and communicated with the circuit cavity, the upper part of the circuit groove is communicated with a wire inlet 41, the wire inlet extends upwards out of the shell, a copper sheet 46 is fixedly arranged on the right end face in the circuit groove, a power wire 43 is inserted in the wire inlet from top to bottom, a threaded hole 47 which is vertical to and communicated with the circuit groove is arranged on the front side surface of the shell, the threaded hole extends out of the shell towards the left, and the power wire and the copper sheet are connected into the circuit groove in a threaded mode from the left to the right through a bolt 48.
In the embodiment of the present invention, the inner wall of the wire inlet hole is provided with a fixing groove 44, the fixing groove extends forwards, backwards, leftwards and rightwards, and the outer surface of the power line is fixedly provided with a fixing block 45 clamped inside the fixing groove.
In the embodiment of the present invention, the elastic sliding device includes a sliding block 75, the right end of the sliding block is fixedly connected to the outer surface of the left side of the sliding sleeve, a sliding groove 76 for the sliding block to slide up and down is formed in the connecting cylinder from right to left, the sliding block extends out of the sliding groove towards left, the upper surface of the extending end of the sliding groove is fixedly connected to a vertical spring 78, the upper end of the spring is fixedly connected to the lower end of a fixing plate 77, and the fixing plate is fixedly connected to the outer surface of the connecting cylinder.
In the embodiment of the invention, the first contact is vertically arranged in the sliding sleeve and is fixed; the nearly upper end department inside of connecting cylinder sets firmly two solid fixed rings 79 of interval arrangement, and the joint has joint ring 710 between two solid fixed rings, the joint ring is worn to establish and is fixed vertically to the second contact, and the second contact is in same vertical axis with first contact.
In the embodiment of the invention, the outer circuit mechanism positioned below the circuit cavity and the outer circuit mechanism positioned above the circuit cavity are vertically symmetrical, and the copper sheet in the outer circuit mechanism below is connected with the first contact through the first circuit; the copper sheet in the upper external circuit mechanism is connected with the second contact through a second circuit.
In the embodiment of the invention, the housing is provided with two second threaded holes 8 which are symmetrical up and down, so that the cover plate and the housing are connected through bolts.
The working principle of the embodiment of the invention is as follows: firstly, two power lines are respectively placed into two wire inlet holes, so that the end heads of the power lines are in contact with the surfaces of copper sheets, fixed blocks are clamped inside fixed grooves, then bolts are rotated to tightly press the end heads of the power lines on the copper sheets, the two copper sheets are respectively connected with a first contact and a second contact in sequence through a first connecting line and a second connecting line, so that the two power lines are respectively connected with the first contact and the second contact, then the sliding block is driven to move in a sliding groove through moving the sliding block, when the sliding block moves upwards, a spring is compressed to drive the sliding sleeve to move towards the second contact, so that the first contact is driven to move towards the second contact, then the first contact is in contact with the second contact, and the two power lines are communicated; the slider can drive the first contact through the reverse promotion of spring and keep away from the second contact, and then breaks off the intercommunication of two power cords, makes the removal track of first contact restrict through connecting cylinder and sliding sleeve, and then guarantees that the removal track of first contact keeps fixed always, prevents the orbit skew of first contact, and then guarantees the circuit breaker normal operating.
In the embodiment of the invention, the design of the upper and lower pushing of the slider controlled by the operating handle in the circuit breaker and the design of the connecting structure of the operating handle and the slider and the design of the circuit breaker capable of automatically cutting off the circuit when overload or short circuit and under-voltage fault occur belong to the conventional design in the field of circuit breakers, and redundant description is omitted here.
The present invention is not limited to the above-described preferred embodiments, and various other types of internal wiring fixing structures for circuit breakers can be obtained by anyone in light of the present invention. All equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (7)
1. An internal line fixed knot constructs for circuit breaker which characterized in that: the connecting device comprises a shell, wherein a circuit cavity is formed in the shell, two outer circuit mechanisms are symmetrically arranged on the upper side and the lower side of the circuit cavity, an inner circuit mechanism is fixedly arranged in the circuit cavity, the inner circuit mechanism comprises a fixed column, one end of the fixed column is fixedly connected to the inner wall of the circuit cavity, the other end of the fixed column is fixedly connected to the outer wall of a vertically arranged connecting cylinder, the connecting cylinder is vertically hollow, the middle-lower section in the connecting cylinder is connected with a sliding sleeve in a sliding mode, a first contact is arranged in the sliding sleeve in a penetrating mode, and the first contact can be in contact with a second contact on the middle-upper section in the connecting cylinder through; the front side of the shell is buckled with a cover plate.
2. The internal circuit fixing structure for a circuit breaker according to claim 1, wherein: the outer line mechanism positioned above the line cavity comprises a line groove, the line groove is arranged on the front end face of the shell and is communicated with the line cavity, the upper portion of the line groove is communicated with a wire inlet hole, the wire inlet hole extends out of the shell upwards, a copper sheet is fixedly arranged on the right end face in the line groove, a power line is inserted in the wire inlet hole from top to bottom, a threaded hole perpendicular to and communicated with the line groove is formed in the front side surface of the shell, the threaded hole extends out of the shell towards the left, and the power line and the copper sheet are connected into the line groove in a threaded mode from the left to the right through a.
3. The internal circuit fixing structure for a circuit breaker according to claim 2, wherein: the fixed slot has been seted up to the inner wall in entrance hole, and this fixed slot is towards the front and back, control and extend, the fixed block of joint in the fixed slot inside has set firmly on the surface of power cord.
4. The internal circuit fixing structure for a circuit breaker according to claim 1, wherein: the elastic sliding device comprises a sliding block, the right end of the sliding block is fixedly connected to the outer surface of the left side of the sliding sleeve, a sliding groove for the sliding block to slide up and down is formed in the connecting cylinder from the right side to the left side, the sliding block extends out of the sliding groove towards the left side, the upper surface of the extending end of the sliding groove is fixedly connected with a vertical spring, the upper end of the spring is fixedly connected to the lower end of a fixing plate, and the fixing plate is fixedly connected to the outer surface of the connecting.
5. The internal circuit fixing structure for a circuit breaker according to claim 1, wherein: the first contact is vertically arranged in the sliding sleeve and is fixed; the nearly upper end department inside of connecting cylinder sets firmly the solid fixed ring that two intervals were arranged, and the joint has the joint ring between two solid fixed rings, the joint ring is worn to establish and is fixed vertically to the second contact, and the second contact is in same vertical axis with first contact.
6. The internal circuit fixing structure for a circuit breaker according to claim 1, wherein: (ii) a The outer circuit mechanism positioned below the circuit cavity and the outer circuit mechanism positioned above the circuit cavity are vertically symmetrical, and a copper sheet in the outer circuit mechanism below is connected with the first contact through a first circuit; the copper sheet in the upper external circuit mechanism is connected with the second contact through a second circuit.
7. The internal circuit fixing structure for a circuit breaker according to claim 1, wherein: and the shell is provided with two threaded holes which are symmetrical up and down so that the cover plate is connected with the shell through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015652.1A CN110752127B (en) | 2019-10-24 | 2019-10-24 | Internal circuit fixing structure for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015652.1A CN110752127B (en) | 2019-10-24 | 2019-10-24 | Internal circuit fixing structure for circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110752127A true CN110752127A (en) | 2020-02-04 |
| CN110752127B CN110752127B (en) | 2022-03-08 |
Family
ID=69279679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911015652.1A Active CN110752127B (en) | 2019-10-24 | 2019-10-24 | Internal circuit fixing structure for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110752127B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546220A (en) * | 1982-10-07 | 1985-10-08 | Sace S.P.A. Costruzioni Elettromeccaniche | Improved plug-in electric switch |
| EP0607567A1 (en) * | 1993-01-19 | 1994-07-27 | PREH-WERKE GmbH & Co. KG | Push-button switch |
| CN1140891A (en) * | 1995-05-08 | 1997-01-22 | 住友电装株式会社 | Breaker switch |
| CN203398052U (en) * | 2013-07-15 | 2014-01-15 | 乐清市爱配克工控电器厂 | Multifunctional breaker |
| CN208796929U (en) * | 2018-09-28 | 2019-04-26 | 杭州电斧电器有限公司 | Leakage circuit breakers with dual-purpose switching off/on device |
-
2019
- 2019-10-24 CN CN201911015652.1A patent/CN110752127B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546220A (en) * | 1982-10-07 | 1985-10-08 | Sace S.P.A. Costruzioni Elettromeccaniche | Improved plug-in electric switch |
| EP0607567A1 (en) * | 1993-01-19 | 1994-07-27 | PREH-WERKE GmbH & Co. KG | Push-button switch |
| CN1140891A (en) * | 1995-05-08 | 1997-01-22 | 住友电装株式会社 | Breaker switch |
| CN203398052U (en) * | 2013-07-15 | 2014-01-15 | 乐清市爱配克工控电器厂 | Multifunctional breaker |
| CN208796929U (en) * | 2018-09-28 | 2019-04-26 | 杭州电斧电器有限公司 | Leakage circuit breakers with dual-purpose switching off/on device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110752127B (en) | 2022-03-08 |
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