CN218039064U - Double-node miniature circuit breaker for preventing terminal from being burnt out due to heating - Google Patents
Double-node miniature circuit breaker for preventing terminal from being burnt out due to heating Download PDFInfo
- Publication number
- CN218039064U CN218039064U CN202222383804.7U CN202222383804U CN218039064U CN 218039064 U CN218039064 U CN 218039064U CN 202222383804 U CN202222383804 U CN 202222383804U CN 218039064 U CN218039064 U CN 218039064U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- terminal
- node
- arc extinguishing
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Breakers (AREA)
Abstract
The utility model discloses a double-node miniature circuit breaker for preventing terminal heating and burning, which comprises a circuit breaker main body, wherein a plurality of control handles are arranged on the circuit breaker main body, a mounting groove is arranged at the rear part of the circuit breaker main body, and a flame-retardant shell is arranged in the circuit breaker main body; the fire-retardant casing is internally provided with a plurality of groups of wiring terminals, the front of each wiring terminal is connected with a double-column firmware, the lower part of one group of wiring terminals is connected with a static contact piece, the lower part of the static contact piece is connected with an arc extinguishing electrode, the fire-retardant casing is internally provided with an arc extinguishing chamber, an electromagnetic coil is arranged beside the arc extinguishing chamber, and the other group of wiring terminals is connected with a bimetallic strip. The utility model discloses a terminal in the fire-retardant shell can be under the cooperation of twin columns firmware, compares traditional circuit breaker and carries out the secondary and consolidate, inserts the pencil to it and fixes, prevents that miniature circuit breaker from in the use, the pencil drops appearing, leads to the pencil to send out hot, and the untimely phenomenon of circuit breaker opening circuit appears, can also effectively avoid the pencil to transship the condition that causes connecting device to burn to take place simultaneously.
Description
Technical Field
The utility model relates to a miniature circuit breaker equipment technical field, specific is a prevent terminal two node miniature circuit breaker that burn out that generates heat.
Background
The breaker is a mechanical switch appliance which can switch on, bear and break current under normal circuit conditions and also can switch on, bear and break current for a certain time under specified abnormal circuit conditions; similarly, the circuit breaker is a terminal protection electric appliance which is most widely used in a building electric terminal distribution device, and is used for protection of single-phase and three-phase short circuit, overload, overvoltage and the like below 125A, and comprises four types, namely a single pole 1P, a two-pole 2P, a three-pole 3P, a four-pole 4P and the like.
At the in-process that current miniature circuit breaker was using, because miniature circuit breaker is connected three phase circuit, directly supply power for high power equipment again after the three phase electricity is connected, and current miniature circuit breaker fixed appear again very easily on the pencil and connect the not hard up condition emergence to lead to electron overload pencil to generate heat and scald, cause the untimely phenomenon of circuit breaker open circuit, then directly when serious to burning jointing equipment.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a prevent terminal two-node miniature circuit breaker that generates heat and burn out firmly fixes its pencil joint through the cooperation of twin columns firmware and terminal, prevents that the pencil joint is not hard up, leads to the pencil overload to generate heat and scald, avoids causing the condition when the short circuit or burn out to take place.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a P-type double-column miniature circuit breaker comprises a circuit breaker main body, wherein a plurality of control handles are mounted on the circuit breaker main body, a mounting groove is formed in the rear of the circuit breaker main body, and a flame-retardant shell is arranged in the circuit breaker main body; install complex number group terminal in the fire-retardant casing, terminal the place ahead is connected with the twin columns firmware, and one of them is a set of terminal below is connected with the stationary contact piece, stationary contact piece below is connected with the arc extinguishing electrode, install the explosion chamber in the fire-retardant casing, the other solenoid that is provided with of explosion chamber, wherein another a set of the other bimetallic strip that is connected with of terminal, the explosion chamber with be provided with the yoke between the solenoid, the other no-voltage release ware of installing of twin columns firmware. The length of the breaker body is 100.9 mm, the height is 64mm, the maximum height of the operating handle is 75mm, the width is 3P54mm, the wiring harness is secondarily reinforced by matching with a wiring terminal at the rear through a double-column fastener, the situation that the wiring harness falls off when the miniature breaker is used is prevented, the wiring harness is burnt, the phenomenon that the breaker is not timely broken is avoided, and meanwhile, the equipment can be prevented from being burnt by overload voltage.
Furthermore, the number of the double-column fixing pieces corresponds to the number of the terminal pins. The double column is fixed nested in wiring end terminal surface, and under the effect of torque, the double column runs through inside the terminal to consolidate the restriction with its pencil, prevent that the pencil is not hard up, make its circuit breaker can in time carry out abnormal processing, open circuit.
Furthermore, one section of the arc extinguishing electrode is arranged at the bottom of the arc extinguishing chamber. The explosion chamber plays the circumstances that prevents the electric arc light short circuit to extinguishing electric arc and takes place under the access of cooperation arc extinguishing electrode, prevents to cause equipment damage, improves switch breaking capacity, ensures that the circuit breaker can in time open circuit, indirectly promotes circuit breaker sensitivity.
Furthermore, the bimetallic strip penetrates through the terminal and is attached to the static contact strip. The bimetallic strip is made of two metals with different expansion coefficients, when the bimetallic strip generates heat when current flows through the bimetallic strip, the bimetallic strip deforms and bends due to different lengths of the heated and stretched bimetallic strip, the bent bimetallic strip pushes one connecting rod, and the connecting rod pushes the opening mechanism, so that the circuit breaker is quickly opened.
Furthermore, the arc extinguishing chamber is connected with the static contact sheet through the arc extinguishing electrode at the bottom. The static contact piece is fixed, the moving contact can move due to the attraction of the armature iron by the electromagnet, and is in contact with the static contact piece, and the arc extinguishing electrode of the communication circuit device is subjected to power transmission when the communication circuit device operates.
Advantageous effects
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a terminal in the fire-retardant shell can be under the cooperation of twin columns firmware, compare traditional circuit breaker and carry out the secondary and consolidate, insert the pencil to it and fix, prevent miniature circuit breaker in the use, the pencil drops appears, leads to the pencil to send out boiling hot, causes the untimely condition of circuit breaker open circuit to appear, can also effectively avoid the pencil to transship simultaneously and cause connecting device to burn out the phenomenon and take place to miniature circuit breaker's fail safe nature has effectively been improved.
Drawings
Fig. 1 is a schematic structural view of a dual-node miniature circuit breaker for preventing a binding post from being heated and burnt;
fig. 2 is a schematic diagram of a side view cross-sectional structure of the circuit breaker of the present invention.
In the figure: the circuit breaker comprises a circuit breaker main body-1, a mounting groove-2, an operating handle-3, a flame-retardant shell-11, a wiring terminal-12, an arc extinguishing electrode-13, a no-voltage release-14, an arc extinguishing chamber-15, an electromagnetic coil-16, a double-column fixing piece-17, a bimetallic strip-18, a static contact strip-19 and a yoke-20.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments, not all embodiments, and all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Examples
As shown in fig. 1-2; fig. 1 is a schematic structural view of a dual-node miniature circuit breaker for preventing a binding post from being burnt out due to heating; fig. 2 is the side view cross section structure schematic diagram of the circuit breaker of the utility model.
The utility model provides a two-node miniature circuit breaker for preventing terminal heating and burning, which comprises a circuit breaker main body 1, a plurality of control handles 3 are arranged on the circuit breaker main body 1, a mounting groove 2 is arranged at the rear part of the circuit breaker main body 1, and a flame-retardant shell 11 is arranged in the circuit breaker main body 1; install complex group terminal 12 in the fire-retardant casing 11, terminal 12 the place ahead is connected with double-column firmware 17, one of them group terminal 12 below is connected with stationary contact piece 19, stationary contact piece 19 below is connected with arc extinguishing electrode 13, install explosion chamber 15 in the fire-retardant casing 11, the other solenoid 16 that is provided with of explosion chamber 15, wherein the other group terminal 12 other is connected with bimetallic strip 18, be provided with yoke 20 between explosion chamber 15 and the solenoid 16, the other no-voltage release 14 that installs of double-column firmware 17. The length of the circuit breaker main body 1 is 100.9 mm, the height is 64mm, the maximum height of the operating handle 3 is 75mm, the width is 3P54mm, wherein the wiring harness is secondarily reinforced by matching with a wiring terminal at the rear through a double-column firmware, the wiring harness is prevented from falling off in the process of using the miniature circuit breaker, so that the wiring harness is burnt, the phenomenon that the circuit breaker is not timely broken occurs, and meanwhile, the equipment can be prevented from being burnt by overloaded voltage. The number of double post fasteners 17 corresponds to the number of terminal posts 12. The double-column is fixedly nested on the end face of the wiring end, and under the action of torque, the double-column penetrates through the interior of the wiring end, so that the wiring harness is reinforced and limited, the wiring harness is prevented from loosening, the circuit breaker can timely collect abnormity, and the circuit breaking treatment is carried out. One section of the arc extinguishing electrode 13 is arranged at the bottom of the arc extinguishing chamber 15. Explosion chamber 15 plays and prevents the condition emergence of electric arc light short circuit to extinguishing electric arc 15 under the access of cooperation arc extinguishing electrode 13, prevents to cause the equipment damage, improves switch breaking capacity, ensures that the circuit breaker can in time open circuit, indirectly promotes circuit breaker sensitivity. The bimetal strip 18 penetrates through the terminal 12 and is attached to the fixed contact strip 19. The bimetallic strip 18 is made of two metals with different expansion coefficients, when the bimetallic strip 18 generates heat when current flows, the bimetallic strip 18 deforms and bends due to different lengths of the heated and stretched bimetallic strip, the bent bimetallic strip 18 pushes a connecting rod, and the connecting rod pushes the opening mechanism, so that the circuit breaker is quickly opened. The arc extinguishing chamber 15 is connected with the stationary contact piece 19 through the bottom arc extinguishing electrode 13. The static contact piece 19 is fixed, the moving contact moves due to the attraction of the armature iron by the electromagnet and contacts with the static contact piece 19, and the arc extinguishing electrode 13 of the communication circuit equipment is subjected to power transmission when the communication circuit equipment operates.
The working principle of the present invention is explained as follows:
the utility model discloses an install the mounting groove 2 at 1 rear of circuit breaker main part, insert its pencil from the stage end 12 on the flame retardant housing 11 after the installation, firmly fix its three-phase pencil that inserts under the cooperation of twin columns firmware 17, swing operating handle 3 afterwards, make it protect the circuit, in the operation process, stationary contact piece 19 is normal power supply under the cooperation of movable contact, electric power is cooperating the arc extinguishing electrode 13 of laminating to getting into explosion chamber 15 through stationary contact piece, and yoke 20 cooperation solenoid 16 makes magnetic energy by make full use of, the efficiency of electro-magnet reaches the highest, make its circuit breaker main part 1 whole down move to its circuit formation protection, when the circuit is unusual, release 14 of exerting pressure takes off the mouth, bimetallic strip 18 takes place to warp crooked, crooked bimetallic strip 18 promotes a connecting rod, the connecting rod promotes, make the circuit breaker open circuit fast, form the electric power short circuit and protect.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The double-node miniature circuit breaker capable of preventing the terminal from being burnt by heating is characterized by comprising a circuit breaker main body (1), wherein a plurality of control handles (3) are installed on the circuit breaker main body (1), an installation groove (2) is formed in the rear of the circuit breaker main body (1), and a flame-retardant shell (11) is arranged in the circuit breaker main body (1);
install complex number group terminal (12) in fire-retardant casing (11), terminal (12) the place ahead is connected with two post firmware (17), and wherein a set of terminal (12) below is connected with stationary contact piece (19), stationary contact piece (19) below is connected with arc extinguishing electrode (13), install explosion chamber (15) in fire-retardant casing (11), other solenoid (16) that are provided with of explosion chamber (15), wherein another a set of other terminal (12) other bimetallic strip (18) that are connected with, explosion chamber (15) with be provided with yoke (20) between solenoid (16), other decompression release (14) of installing of two post firmware (17).
2. The dual-node miniature circuit breaker of claim 1, wherein said dual-node miniature circuit breaker is characterized in that: the number of the double-column fixing pieces (17) corresponds to the number of the terminal heads (12).
3. The dual-node miniature circuit breaker for preventing terminal heating and burning according to claim 1, characterized in that: one section of the arc extinguishing electrode (13) is arranged at the bottom of the arc extinguishing chamber (15).
4. The dual-node miniature circuit breaker of claim 1, wherein said dual-node miniature circuit breaker is characterized in that: the bimetallic strip (18) penetrates through the terminal head (12) and is attached to the static contact strip (19).
5. The dual-node miniature circuit breaker of claim 1, wherein said dual-node miniature circuit breaker is characterized in that: the arc extinguishing chamber (15) is connected with the static contact piece (19) through the arc extinguishing electrode (13) at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222383804.7U CN218039064U (en) | 2022-09-08 | 2022-09-08 | Double-node miniature circuit breaker for preventing terminal from being burnt out due to heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222383804.7U CN218039064U (en) | 2022-09-08 | 2022-09-08 | Double-node miniature circuit breaker for preventing terminal from being burnt out due to heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218039064U true CN218039064U (en) | 2022-12-13 |
Family
ID=84353290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222383804.7U Active CN218039064U (en) | 2022-09-08 | 2022-09-08 | Double-node miniature circuit breaker for preventing terminal from being burnt out due to heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218039064U (en) |
-
2022
- 2022-09-08 CN CN202222383804.7U patent/CN218039064U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111816513A (en) | Residual current circuit breaker | |
| CN218039064U (en) | Double-node miniature circuit breaker for preventing terminal from being burnt out due to heating | |
| CN213184182U (en) | Switch electric appliance | |
| RU2505876C2 (en) | Low-voltage switch | |
| CN108022814A (en) | A kind of miniature circuit breaker arc quenching system | |
| CN201804811U (en) | Circuit breaker with mechanical overheating protection function | |
| CN115662856A (en) | Arc extinguishing chamber and circuit breaker with arc extinguishing chamber | |
| CN216213228U (en) | Small-sized current-limiting and rapid arc-extinguishing circuit breaker | |
| CN213093165U (en) | Novel air switch | |
| CN217740458U (en) | Overload protection mechanism of circuit breaker | |
| CN210200651U (en) | Miniature circuit breaker with unilateral bus bar wiring port | |
| CN111048370B (en) | High-segmentation arc extinguish chamber for circuit breaker | |
| CN209947776U (en) | Arc extinguishing mechanism of miniature circuit breaker | |
| CN113539755A (en) | Circuit breaker | |
| CN115547778A (en) | Circuit breaker | |
| CN217280619U (en) | Circuit breaker shell | |
| CN211045359U (en) | Automatic time-delay circuit breaker | |
| CN219696359U (en) | Plastic case circuit breaker controlled by external signal | |
| CN216624139U (en) | Static contact arc-isolating cover of circuit breaker | |
| CN216145577U (en) | Deionization device and circuit breaker equipped with deionization device | |
| CN102856136B (en) | Miniature circuit breaker | |
| CN201444468U (en) | Circuit breaker with control line switch-in end positioned at power line inlet end | |
| RU68773U1 (en) | AUTOMATIC SWITCH | |
| CN218160252U (en) | Circuit breaker | |
| CN221057344U (en) | Novel miniature circuit breaker of double column type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |