CN219303577U - Miniature circuit breaker with digital display function - Google Patents
Miniature circuit breaker with digital display function Download PDFInfo
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- CN219303577U CN219303577U CN202223503164.5U CN202223503164U CN219303577U CN 219303577 U CN219303577 U CN 219303577U CN 202223503164 U CN202223503164 U CN 202223503164U CN 219303577 U CN219303577 U CN 219303577U
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- circuit breaker
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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Abstract
The utility model relates to a miniature circuit breaker with a digital display function, which comprises a shell, an operating mechanism, a contact system, an arc extinguishing chamber, an input wiring terminal and an output wiring terminal, wherein a digital display module electrically connected with the output wiring terminal is arranged in the shell, the digital display module comprises a circuit board arranged in the shell, a nixie tube arranged on the circuit board and an indicator lamp arranged on the circuit board, a display hole and an indicator hole are respectively arranged on the shell corresponding to the nixie tube and the indicator lamp, the nixie tube is clamped in the display hole, the indicator lamp penetrates through the indicator hole and extends out of the shell, and a sampling lead is connected between the circuit board and the output wiring terminal. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly, long service life and digital display function.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a miniature circuit breaker with a digital display function.
Background
The miniature circuit breaker is also called miniature circuit breaker, is suitable for overload and short-circuit protection of the line with rated voltage of 230/400V of alternating current 50/60Hz and rated current not exceeding 125A, and can be used as infrequent operation conversion of the line under normal conditions. The miniature circuit breaker is mainly used in various places such as industry, business, high-rise and civil houses. The current and voltage monitoring function is arranged on the existing miniature circuit breaker, however, the miniature circuit breaker has no current and voltage monitoring digital display function, a user cannot intuitively know current and voltage parameters of the miniature circuit breaker, the contact pressure of a moving contact of the existing miniature circuit breaker is too small, and a fusion welding phenomenon is easy to occur between the moving contact and a fixed contact, so that the service life of the miniature circuit breaker is short.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the miniature circuit breaker with the digital display function, which has the advantages of simple structure, stable and reliable performance, convenient assembly and long service life.
In order to achieve the purpose, the miniature circuit breaker with the digital display function comprises a shell, an operating mechanism, a contact system, an arc extinguish chamber, an input wiring terminal and an output wiring terminal, wherein a digital display module electrically connected with the output wiring terminal is arranged in the shell, the digital display module comprises a circuit board arranged in the shell, a nixie tube arranged on the circuit board and an indicator lamp arranged on the circuit board, a display hole and an indicator hole are respectively arranged on the shell corresponding to the nixie tube and the indicator lamp, the nixie tube is clamped in the display hole, the indicator lamp penetrates through the indicator hole and extends out of the shell, and a sampling lead is connected between the circuit board and the output wiring terminal.
The beneficial effects of the structure are as follows: the digital display module is arranged in the shell, and the nixie tube can display current and voltage parameters adopted by the circuit board, so that the visualization of the current and voltage parameters can be realized, and a user can know the working state of the miniature circuit breaker conveniently. Therefore, the miniature circuit breaker has the advantages of simple structure, stable and reliable performance, convenient assembly, long service life and digital display function.
The contact system comprises a contact frame, a spring, a moving contact and a fixed contact, wherein the contact frame is arranged in linkage with an operating mechanism, the spring is arranged between the contact frame and a shell, the moving contact is arranged in linkage with the contact frame, the fixed contact is matched with the moving contact, a containing hole for containing the moving contact is formed in the contact frame, a supporting frame is arranged in the containing hole, the moving contact is rotatably arranged on the supporting frame, and a contact spring is arranged between the moving contact and the supporting frame. The contact spring can increase the contact pressure of the movable contact, can avoid fusion welding phenomenon between the movable contact and the fixed contact, and is beneficial to prolonging the service life of the miniature circuit breaker.
Particularly, the support frame on correspond moving contact both sides department and be provided with the locating hole respectively, moving contact both sides on be provided with respectively with locating hole matched with locating lug, locating lug block in the locating hole, and constitute the swivelling joint cooperation of moving contact and support frame. The movable contact is provided with the positioning convex blocks clamped on the support frame, so that the assembly of the support frame and the movable contact is convenient, the assembly is more convenient, the movable contact can reliably act on the support frame, and the improvement of the working reliability of the miniature circuit breaker is facilitated.
Particularly, moving contact one end have with contact spring matched with spacing portion of bending, the moving contact other end has the stationary contact who extends outside the contact frame, contact spring one end conflict on spacing portion of bending, the support frame in be provided with the location boss, contact spring other end block on the location boss. The contact spring is clamped between the bending limiting part of the moving contact and the positioning boss of the supporting frame, so that the contact spring, the moving contact and the supporting frame are convenient to assemble, and the assembly is more convenient.
Particularly, the support frame on be provided with contact frame matched with spacing piece, the contact frame on be provided with spacing piece matched with spacing groove, spacing piece block in the spacing inslot, and constitute support frame and contact frame's joint cooperation. The support frame and the contact frame are assembled in a clamping and matching mode, so that the assembly is more convenient and rapid, and the assembly efficiency of the miniature circuit breaker is improved.
Specifically, one end of the fixed contact is provided with a fixed contact matched with the movable contact, the other end of the fixed contact extends towards the direction of the output wiring terminal and is provided with a wiring part, and the wiring part is inserted into the output wiring terminal. The wiring part on the static contact is inserted in the output wiring terminal, and the static contact and the output wiring terminal are integrated and modularized, so that the modularized assembly of the miniature circuit breaker is facilitated, and the assembly efficiency is higher.
Drawings
Fig. 1 is a perspective view of an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of an embodiment of the present utility model.
Fig. 3 is an internal structural diagram of an embodiment of the present utility model.
Fig. 4 is an assembly diagram of a supporting frame and a moving contact according to an embodiment of the present utility model.
Detailed Description
As shown in fig. 1 to 4, the embodiment of the utility model is a miniature circuit breaker with a digital display function, which comprises a shell 10, an operating mechanism 11, a contact system 20, an arc extinguishing chamber 13, an input wiring terminal 14 and an output wiring terminal 15, wherein a digital display module 30 electrically connected with the output wiring terminal 15 is arranged in the shell 10, the digital display module 30 comprises a circuit board 31 arranged in the shell 10, a nixie tube 32 arranged on the circuit board 31 and an indicator lamp 33 arranged on the circuit board 31, a display hole 101 and an indicator hole 102 are respectively arranged on the corresponding nixie tube 32 and the indicator lamp 33 on the shell 10, the nixie tube 32 is clamped in the display hole 101, the indicator lamp 33 penetrates through the indicator hole 102 and extends out of the shell 10, and a sampling wire is connected between the circuit board 31 and the output wiring terminal 15.
As shown in fig. 2 to 4, the contact system 20 includes a contact frame 21, a spring 22, a moving contact 23 and a fixed contact 24, wherein the contact frame 21 is arranged in linkage with the operating mechanism 11, the spring 22 is arranged between the contact frame 21 and the housing 10, the moving contact 23 is arranged in linkage with the contact frame 21, the fixed contact 24 is matched with the moving contact 23, the contact frame 21 is provided with a containing hole 211 for containing the moving contact 23, a supporting frame 25 is arranged in the containing hole 211, the moving contact 23 is rotatably arranged on the supporting frame 25, and a contact spring 26 is arranged between the moving contact 23 and the supporting frame 25. The contact spring can increase the contact pressure of the movable contact, can avoid fusion welding phenomenon between the movable contact and the fixed contact, and is beneficial to prolonging the service life of the miniature circuit breaker. The support frame 25 on correspond moving contact 23 both sides department be provided with locating hole 251 respectively, moving contact 23 both sides on be provided with respectively with locating hole 251 matched with location lug 231, location lug 231 block in locating hole 251, and constitute moving contact 23 and the cooperation of the swivelling joint of support frame 25. The movable contact is provided with the positioning convex blocks clamped on the support frame, so that the assembly of the support frame and the movable contact is convenient, the assembly is more convenient, the movable contact can reliably act on the support frame, and the improvement of the working reliability of the miniature circuit breaker is facilitated. One end of the movable contact 23 is provided with a bending limiting part 232 matched with the contact spring 26, the other end of the movable contact 23 is provided with a fixed contact 233 extending out of the contact frame 21, one end of the contact spring 26 is abutted against the bending limiting part 232, a positioning boss 252 is arranged in the supporting frame 25, and the other end of the contact spring 26 is clamped on the positioning boss 252. The contact spring is clamped between the bending limiting part of the moving contact and the positioning boss of the supporting frame, so that the contact spring, the moving contact and the supporting frame are convenient to assemble, and the assembly is more convenient. The support frame 25 is provided with a limiting piece 253 which is matched with the contact frame 21, the contact frame 21 is provided with a limiting groove 211 which is matched with the limiting piece 253, and the limiting piece 253 is clamped in the limiting groove 211 and is matched with the contact frame 21 in a clamping way. The support frame and the contact frame are assembled in a clamping and matching mode, so that the assembly is more convenient and rapid, and the assembly efficiency of the miniature circuit breaker is improved. One end of the fixed contact 24 is provided with a fixed contact 241 matched with the movable contact 23, the other end of the fixed contact 24 extends towards the direction of the output connecting terminal 15 and is provided with a connecting part 242, and the connecting part 242 is inserted into the output connecting terminal 15. The wiring part on the static contact is inserted in the output wiring terminal, and the static contact and the output wiring terminal are integrated and modularized, so that the modularized assembly of the miniature circuit breaker is facilitated, and the assembly efficiency is higher.
The digital display module is arranged in the shell, and the nixie tube can display current and voltage parameters adopted by the circuit board, so that the visualization of the current and voltage parameters can be realized, and a user can know the working state of the miniature circuit breaker conveniently. Therefore, the miniature circuit breaker has the advantages of simple structure, stable and reliable performance, convenient assembly, long service life and digital display function.
Claims (6)
1. The utility model provides a take digital display function's miniature circuit breaker, includes casing, operating device, contact system, explosion chamber, input binding post, output binding post, its characterized in that: the digital display module comprises a circuit board arranged in the shell, a nixie tube arranged on the circuit board and an indicator lamp arranged on the circuit board, wherein a display hole and an indicator hole are respectively arranged on the shell corresponding to the nixie tube and the indicator lamp, the nixie tube is clamped in the display hole, the indicator lamp penetrates through the indicator hole and extends out of the shell, and a sampling lead is connected between the circuit board and the output wiring terminal.
2. The miniature circuit breaker with digital display function of claim 1, wherein: the contact system comprises a contact frame, a spring, a moving contact and a fixed contact, wherein the contact frame is arranged in linkage with an operating mechanism, the spring is arranged between the contact frame and a shell, the moving contact is arranged in linkage with the contact frame, the fixed contact is matched with the moving contact, a containing hole for containing the moving contact is formed in the contact frame, a supporting frame is arranged in the containing hole, the moving contact is rotatably arranged on the supporting frame, and a contact spring is arranged between the moving contact and the supporting frame.
3. The miniature circuit breaker with digital display function according to claim 2, characterized in that: the movable contact is characterized in that positioning holes are formed in the support frame, corresponding to the two sides of the movable contact, respectively, positioning protruding blocks matched with the positioning holes are arranged on the two sides of the movable contact, the positioning protruding blocks are clamped in the positioning holes, and the movable contact is in rotary connection with the support frame.
4. A miniature circuit breaker with digital display function according to claim 2 or 3, characterized in that: the movable contact is characterized in that one end of the movable contact is provided with a bending limiting part matched with a contact spring, the other end of the movable contact is provided with a fixed contact extending out of the contact frame, one end of the contact spring is abutted against the bending limiting part, a positioning boss is arranged in the supporting frame, and the other end of the contact spring is clamped on the positioning boss.
5. A miniature circuit breaker with digital display function according to claim 2 or 3, characterized in that: the support frame on be provided with contact frame matched with spacing piece, the contact frame on be provided with spacing piece matched with spacing groove, spacing piece block in the spacing inslot, and constitute support frame and contact frame's joint cooperation.
6. A miniature circuit breaker with digital display function according to claim 2 or 3, characterized in that: one end of the fixed contact is provided with a fixed contact matched with the movable contact, the other end of the fixed contact extends towards the direction of the output wiring terminal and is provided with a wiring part, and the wiring part is inserted into the output wiring terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223503164.5U CN219303577U (en) | 2022-12-23 | 2022-12-23 | Miniature circuit breaker with digital display function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223503164.5U CN219303577U (en) | 2022-12-23 | 2022-12-23 | Miniature circuit breaker with digital display function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219303577U true CN219303577U (en) | 2023-07-04 |
Family
ID=86954647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223503164.5U Active CN219303577U (en) | 2022-12-23 | 2022-12-23 | Miniature circuit breaker with digital display function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219303577U (en) |
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2022
- 2022-12-23 CN CN202223503164.5U patent/CN219303577U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |