CN220290748U - Plastic case breaker static contact assembly - Google Patents
Plastic case breaker static contact assembly Download PDFInfo
- Publication number
- CN220290748U CN220290748U CN202322051120.1U CN202322051120U CN220290748U CN 220290748 U CN220290748 U CN 220290748U CN 202322051120 U CN202322051120 U CN 202322051120U CN 220290748 U CN220290748 U CN 220290748U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- fixed contact
- groove
- case circuit
- 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
- 230000003068 static effect Effects 0.000 title claims description 26
- 238000009413 insulation Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a plastic shell circuit breaker fixed contact component, which belongs to the technical field of circuit breaker fixed contacts and comprises a plastic shell circuit breaker mounting plate, an arc extinguishing plate and a fixed contact main body, wherein the arc extinguishing plate and the fixed contact main body are arranged on the side wall of the plastic shell circuit breaker mounting plate, a fastening frame is fixed at the bottom end of the side wall of the plastic shell circuit breaker mounting plate, a fastening groove for accommodating the fixed contact main body is formed in the top end of the fastening frame, a telescopic groove extending into the plastic shell circuit breaker mounting plate is formed in the inner wall of the fastening groove, a clamping groove is formed in the bottom end of the fixed contact main body, an elastic frame is embedded in the telescopic groove, an insulating clamping block which is in fit connection with the clamping groove is elastically installed through the elastic frame, and the bottom end of the fixed contact main body is in fit connection with the inner wall of the fastening groove.
Description
Technical Field
The utility model belongs to the technical field of fixed contacts of circuit breakers, and particularly relates to a fixed contact assembly of a molded case circuit breaker.
Background
The plastic shell circuit breaker is one of the circuit breakers, and can automatically cut off power supply after the current exceeds trip setting, the plastic shell is a plastic insulating shell, binding posts are arranged at two ends of the plastic shell circuit breaker, a fixed contact is used for connecting the binding posts and a moving contact, the fixed contact is fixed on the plastic shell circuit breaker, when the fixed contact is installed, the threaded holes of the fixed part are difficult to align with the threaded holes of the plastic shell circuit breaker rapidly, the installation and fixation of screws are very tedious and troublesome, the fixed contact is difficult to be installed at the position matched with the moving contact in a rapid positioning way, and the installation process is low in efficiency.
The utility model discloses a moulded case circuit breaker static contact, has solved moulded case circuit breaker and has been difficult to install the quick location of static contact in the position that matches with the moving contact, the loaded down with trivial details problem of installation, its technical scheme main points are moulded case circuit breaker static contact, bear the weight of the portion including U type structure, bear the weight of the portion and include first arm lock and second arm lock, the tip of first arm lock outwards extends has connecting portion, the other end integral connection of connecting portion has the fixed part that is used for fixed static contact, be provided with locating component on the faying face of fixed part.
Although the fixed contact can be positioned through the convex points in the concave holes, the holes which are installed still need to be matched with each other in the positioning process, and the fixed contact is fixed by bolts after being matched, which is similar to the traditional mode of directly positioning, matching and fixing by bolts, so that the problems of complex fixation and low installation efficiency still exist.
Disclosure of Invention
(1) Technical problem to be solved
Aiming at the defects of the prior art, the utility model aims to provide a fixed contact component of a molded case circuit breaker, which aims to solve the problems that in the prior art, holes which are still required to be installed are matched with each other in the positioning process, and after the holes are matched, bolts are used for fixing, and the fixed contact component is similar to the traditional mode of directly positioning, matching and fixing through the bolts, so that the fixed contact component still has complicated fixing and low installation efficiency.
(2) Technical proposal
In order to solve the technical problems, the utility model provides a plastic shell circuit breaker fixed contact assembly, which comprises a plastic shell circuit breaker mounting plate, and an arc extinguishing plate and a fixed contact main body which are arranged on the side wall of the plastic shell circuit breaker mounting plate, wherein a fastening frame is fixed at the bottom end of the side wall of the plastic shell circuit breaker mounting plate, a fastening groove for accommodating the fixed contact main body is formed at the top end of the fastening frame, a telescopic groove extending into the plastic shell circuit breaker mounting plate is formed in the inner wall of the fastening groove, a clamping groove is formed at the bottom end of the fixed contact main body, and an elastic frame is embedded in the telescopic groove and is provided with an insulating clamping block which is in fit connection with the clamping groove through the elastic frame.
When the plastic-case circuit breaker fixed contact assembly of the technical scheme is used, when the fixed contact main body is fixed, the bottom end of the fixed contact main body is inserted into the fastening groove on the fastening frame, the elastic frame in the telescopic groove on the inner wall of the fastening frame pushes the insulating clamping block to be inserted into the clamping groove at the bottom end of the fixed contact main body in an anastomotic manner, so that the fixed contact main body is kept fixed in the fastening frame, meanwhile, the condition of current ignition caused by insufficient connection between the insulating clamping block and the inner wall of the clamping groove is avoided due to the insulating characteristic of the insulating clamping block, the fixed contact main body is conveniently fixed, and the stability and the installation efficiency of the fixed contact main body are improved; the positioning blocks are fixed on the side wall of the mounting plate of the molded case circuit breaker, the supporting frame drives the arc-extinguishing plates to be inserted between the two positioning blocks and to be extruded with the inclined side wall of the protruding part in the continuous moving process, so that the protruding part drives the elastic plate to elastically deform and move into the groove until the supporting frame is completely inserted into the positioning blocks, the elastic plate pushes the protruding part to be inserted into the positioning groove in an anastomotic manner, the top end of the fixed contact main body is kept to be fixed by the arc-extinguishing plates, and then an electric arc generated by the fixed contact main body is eliminated, so that the use safety of the fixed contact main body is improved.
Preferably, the bottom end of the fixed contact body is connected in the fastening groove in an anastomotic manner and is tightly connected with the inner wall of the fastening groove, and the top end of the fixed contact body is fixedly connected with the electrode plate.
Further, the elastic frame is of a V-shaped structure, and the two ends of the elastic frame are respectively fixedly connected with the inner wall of the telescopic groove and the insulating clamping block.
Still further, the support frame has been cup jointed fixedly on the top of explosion plate, and the arc chute has been seted up to the bottom of explosion plate, the top of static contact main part is embedded to be set up in the arc chute.
Furthermore, positioning blocks are symmetrically fixed at the top ends of the side walls of the molded case circuit breaker mounting plate, and grooves are formed in one side face, opposite to the two positioning blocks, of the molded case circuit breaker mounting plate.
Furthermore, elastic plates are fixed on the inner walls of the grooves, and protruding portions are arranged on one side face, opposite to the elastic plates, of each groove.
Furthermore, positioning grooves are formed in the two ends of the supporting frame, and the protruding portions are connected in an anastomotic manner in the positioning grooves.
(3) Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
when the fixed contact main body is fixed, the bottom end of the fixed contact main body is inserted into the fastening groove on the fastening frame, the elastic frame in the telescopic groove on the inner wall of the fastening frame pushes the insulating clamping block to be inserted into the clamping groove on the bottom end of the fixed contact main body in an anastomotic manner, so that the fixed contact main body is kept fixed in the fastening frame, meanwhile, the insulation characteristic of the insulating clamping block avoids the condition that current fires caused by insufficient connection between the insulating clamping block and the inner wall of the clamping groove, the fixed contact main body is convenient to fix, and the stability and the installation efficiency of the fixed contact main body are improved.
The positioning blocks are fixed on the side wall of the mounting plate of the molded case circuit breaker, the supporting frame drives the arc-extinguishing plates to be inserted between the two positioning blocks and to be extruded with the inclined side wall of the protruding part in the continuous moving process, so that the protruding part drives the elastic plate to elastically deform and move into the groove until the supporting frame is completely inserted into the positioning blocks, the elastic plate pushes the protruding part to be inserted into the positioning groove in an anastomotic manner, the top end of the fixed contact main body is kept to be fixed by the arc-extinguishing plates, and then an electric arc generated by the fixed contact main body is eliminated, so that the use safety of the fixed contact main body is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a split structure of the present utility model;
FIG. 3 is a schematic view of a positioning block according to the present utility model;
fig. 4 is a schematic diagram of a disassembling structure of a fastening frame of the present utility model.
The marks in the drawings are: 1. a molded case circuit breaker mounting plate; 2. a fastening frame; 3. arc extinguishing plates; 4. a support frame; 5. a positioning groove; 6. a positioning block; 7. a fastening groove; 8. a clamping groove; 9. a stationary contact body; 10. an electrode plate; 11. a groove; 12. an elastic plate; 13. a boss; 14. a telescopic slot; 15. an insulating clamping block; 16. an elastic frame.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
This embodiment is a plastic case circuit breaker static contact subassembly, its structure schematic diagram is as shown in fig. 1, this plastic case circuit breaker static contact subassembly includes plastic case circuit breaker mounting panel 1 (plastic case circuit breaker mounting panel 1 is the inner wall of plastic case circuit breaker, be used for installing static contact subassembly and moving contact subassembly, only draw in the drawing in the diagram in the plastic case circuit breaker in the part of installing the static contact subassembly), and set up arc extinguishing plate 3 and the static contact main part 9 at the side wall of plastic case circuit breaker mounting panel 1, the lateral wall bottom mounting of plastic case circuit breaker mounting panel 1 has fastening frame 2, fastening frame 2's top has seted up the fastening groove 7 that is used for holding static contact main part 9, the expansion groove 14 that stretches into plastic case circuit breaker mounting panel 1 has been seted up to the inner wall of fastening groove 7, clamping groove 8 has been seted up to the bottom of static contact main part 9, the embedded elastic frame 16 that is provided with in the expansion groove 14, and through elastic frame 16 elastic mounting, when fixing static contact main part 9, the bottom of static contact main part 9 is in the drawing in the plastic case, the fastening frame 2 pushes down the bottom of fastening frame 9 in fastening groove 7 and the clamping groove 2, thereby the elastic clamping frame 2 in the side wall 2 of fastening frame 2, the expansion groove 15 has not led to the situation of keeping the static contact main part in the insulation main part 15 in the insulation groove, the situation of keeping well, and the insulation between the static contact main part is fully connected in the inner wall 15.
The bottom end of the fixed contact main body 9 is connected in the fastening groove 7 in an anastomotic manner, and is tightly connected with the inner wall of the fastening groove 7, the tightly connected fixed contact main body 9 and the fastening frame 2 enable electric connection between the two to be more stable, the top end of the fixed contact main body 9 is fixedly connected with the electrode plate 10, the elastic frame 16 is of a V-shaped structure, the two ends of the elastic frame 16 are respectively connected with the inner wall of the telescopic groove 14 and the insulating clamping block 15 in a fixed manner, and the elastic frame 16 pushes the insulating clamping block 15 to enable the insulating clamping block 15 to be connected in the clamping groove 8 at the bottom end of the fixed contact main body 9 in an anastomotic manner.
In addition, support frame 4 has been cup jointed fixedly on the top of arc-extinguishing plate 3, and the arc-extinguishing groove has been seted up to the bottom of arc-extinguishing plate 3, the top of static contact main part 9 is embedded to be set up in the arc-extinguishing groove, the lateral wall top symmetry of moulded case circuit breaker mounting panel 1 is fixed with locating piece 6, recess 11 has all been seted up to one side that two locating pieces 6 are in opposite directions, the inner wall of two recesses 11 is fixed with elastic plate 12, one side that two elastic plates 12 are in opposite directions all is provided with bellying 13, constant head tank 5 has all been seted up at the both ends of support frame 4, bellying 13 coincide grafting is in constant head tank 5, elastic plate 12 promotes bellying 13 to coincide grafting in constant head tank 5, thereby make arc-extinguishing plate 3 keep fixed at the top of static contact main part 9, and then the electric arc that produces static contact main part 9 is destroyed.
The fixed contact assembly of the molded case circuit breaker is shown in a split structure schematic view in fig. 2, the positioning block 6 is shown in a structure schematic view in fig. 3, and the fastening frame 2 is shown in a split structure schematic view in fig. 4.
Working principle: when the fixed contact main body 9 is fixed, the bottom end of the fixed contact main body 9 is inserted into the fastening groove 7 on the fastening frame 2, the elastic frame 16 in the telescopic groove 14 pushes the insulating clamping block 15 to be inserted into the clamping groove 8 at the bottom end of the fixed contact main body 9 in an anastomotic manner, so that the fixed contact main body 9 is kept fixed in the fastening frame 2, the arc extinguishing plate 3 is sleeved on the fixed contact main body 9 after the fixed contact main body 9 is installed, the support frame 4 drives the arc extinguishing plate 3 to be inserted between the two positioning blocks 6 and is extruded by the side wall inclined with the protruding part 13 in the continuous moving process, so that the protruding part 13 drives the elastic plate 12 to elastically deform and move into the groove 11 until the support frame 4 is completely inserted into the positioning blocks 6, and the elastic plate 12 pushes the protruding part 13 to be inserted into the positioning groove 5 in an anastomotic manner, so that the top end of the arc extinguishing plate 3 is kept fixed in the fixed contact main body 9.
All technical features in the embodiment can be freely combined according to actual needs.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. This moulded case circuit breaker static contact subassembly, this moulded case circuit breaker static contact subassembly include moulded case circuit breaker mounting panel (1) and set up arc extinguishing board (3) and static contact main part (9) at moulded case circuit breaker mounting panel (1) lateral wall, its characterized in that, the lateral wall bottom mounting of moulded case circuit breaker mounting panel (1) has fastening frame (2), fastening groove (7) that are arranged in holding static contact main part (9) have been seted up on the top of fastening frame (2), expansion groove (14) that stretch into moulded case circuit breaker mounting panel (1) have been seted up to the inner wall of fastening groove (7), draw-in groove (8) have been seted up to the bottom of static contact main part (9), embedded elastic frame (16) that are provided with in expansion groove (14) to through elastic frame (16) elastic mounting insulation fixture block (15) of anastomotic grafting in draw-in groove (8).
2. The fixed contact assembly of the molded case circuit breaker according to claim 1, wherein the bottom end of the fixed contact main body (9) is in fit connection with the fastening groove (7) and is tightly connected with the inner wall of the fastening groove (7), and the top end of the fixed contact main body (9) is fixedly connected with the electrode plate (10).
3. The fixed contact assembly of the molded case circuit breaker according to claim 1, wherein the elastic frame (16) is of a V-shaped structure, and the inner walls of the telescopic slots (14) and the insulating clamping blocks (15) are fixedly connected at two ends of the elastic frame (16).
4. The plastic case circuit breaker fixed contact assembly according to claim 1, wherein the top end of the arc-extinguishing plate (3) is fixedly sleeved with the supporting frame (4), the bottom end of the arc-extinguishing plate (3) is provided with an arc-extinguishing groove, and the top end of the fixed contact main body (9) is embedded in the arc-extinguishing groove.
5. The fixed contact assembly of the molded case circuit breaker according to claim 4, wherein positioning blocks (6) are symmetrically fixed at the top ends of the side walls of the molded case circuit breaker mounting plate (1), and grooves (11) are formed in one opposite side surfaces of the two positioning blocks (6).
6. The fixed contact assembly of the molded case circuit breaker according to claim 5, wherein elastic plates (12) are fixed on the inner walls of the two grooves (11), and a protruding portion (13) is arranged on one side surface of the two elastic plates (12) opposite to each other.
7. The fixed contact assembly of the molded case circuit breaker according to claim 6, wherein positioning grooves (5) are formed in two ends of the supporting frame (4), and the protruding portions (13) are in fit connection with the positioning grooves (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322051120.1U CN220290748U (en) | 2023-08-02 | 2023-08-02 | Plastic case breaker static contact assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322051120.1U CN220290748U (en) | 2023-08-02 | 2023-08-02 | Plastic case breaker static contact assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220290748U true CN220290748U (en) | 2024-01-02 |
Family
ID=89332467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322051120.1U Active CN220290748U (en) | 2023-08-02 | 2023-08-02 | Plastic case breaker static contact assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220290748U (en) |
-
2023
- 2023-08-02 CN CN202322051120.1U patent/CN220290748U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220290748U (en) | Plastic case breaker static contact assembly | |
| CN212626689U (en) | Power distribution cabinet with electrical installation seat | |
| CN210326494U (en) | High-voltage alternating-current vacuum combined circuit breaker convenient to install | |
| CN208663179U (en) | A kind of electronic product enclosure clamp for machining | |
| CN215451300U (en) | Electrical component installation mechanism for electrical engineering | |
| CN217160167U (en) | Host installation structure in inversion energy storage equipment | |
| CN216288282U (en) | Contact structure | |
| CN216562993U (en) | Static contact structure of universal circuit breaker | |
| CN201830189U (en) | Energy-saving efficient starter | |
| CN212570771U (en) | Interlocking device for installing pole-mounted circuit breaker | |
| CN219677076U (en) | Isolating switch contact structure | |
| CN218648891U (en) | Switch firmware is with changing subassembly | |
| CN218383213U (en) | Online monitoring device for storage battery | |
| CN219642724U (en) | Convenient dismouting formula wall switch | |
| CN219842903U (en) | Auxiliary fixing mechanism of switch control module | |
| CN217690797U (en) | Intelligence low pressure power capacitor | |
| CN218975855U (en) | SF6 cabinet power supply quick socket | |
| CN211295434U (en) | AC/DC connector and switch cabinet thereof | |
| CN111834771B (en) | FPC connector and connecting method thereof | |
| CN218119488U (en) | Binding post mounting structure and lamps and lanterns of lamps and lanterns | |
| CN217082445U (en) | Buckle formula shot-light | |
| CN210836842U (en) | Wall-mounted escape mark | |
| CN212751480U (en) | Bearing structure of control cabinet | |
| CN215527615U (en) | Moving plate positioning structure of high-voltage direct-current relay | |
| CN215628875U (en) | Clothes dryer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |