CN218004762U - Contact mechanism of control and protection switch - Google Patents
Contact mechanism of control and protection switch Download PDFInfo
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- CN218004762U CN218004762U CN202221818359.6U CN202221818359U CN218004762U CN 218004762 U CN218004762 U CN 218004762U CN 202221818359 U CN202221818359 U CN 202221818359U CN 218004762 U CN218004762 U CN 218004762U
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- protection switch
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Abstract
The utility model discloses a contact mechanism of a control and protection switch, which comprises a shell, wherein a top rod, a breaker module, a moving contact, N groups of static contacts, a reset piece and a chute are arranged in the shell, the top rod is positioned in the chute and is arranged in a sliding way, and the top rod and the reset piece are matched with each other to fix the moving contact; the circuit breaker module is provided with a connecting part, one end of the moving contact is fixedly connected with the connecting part, the other end of the moving contact is provided with a moving contact, the fixed contacts are all positioned on the motion trail of the moving contact, the resetting piece drives the moving contact to be linked with the fixed contacts, and N is more than or equal to 1 and less than or equal to 2; the utility model has the characteristics of simple structure, wholly be convenient for the installation fixed, can not take place moving contact both ends unable synchronous switch-on etc.
Description
Technical Field
The utility model relates to a control and protection switch's contact mechanism.
Background
The contact system is an important component of the switching device and is mainly used for connecting, bearing and disconnecting the current flowing through a main loop when the switching device works. The contact system on the existing control and protection switch mostly adopts a double-breakpoint structure, namely, the center position of a moving contact is fixedly connected with a contact support, moving contacts are respectively arranged at two ends of the moving contact, and two static contacts are positioned above the moving contacts. When the device works, the moving contact is propped against the fixed contact under the action of the elastic force of the spring, and current flows in from the input end, passes through the moving contact and the fixed contact and then flows out from the output end; when the switch needs to be disconnected, the contact support drives the moving contact to overcome the elastic force to move downwards under the action of the electromagnetic system, so that the moving contact is separated from the fixed contact, and the power failure is realized.
However, in the actual use process, the double-breakpoint structure is adopted, so that the installation and fixation of the contact system are troublesome, and the phenomenon that the double-breakpoint structure cannot be synchronized easily occurs, namely, one of the two movable contacts is connected and the other movable contact is not connected, so that the overall use effect is influenced.
Disclosure of Invention
The utility model discloses the main technical problem who solves provides a control and protection switch's contact mechanism.
The utility model discloses the technical scheme who solves its technical problem and adopt is: a contact mechanism for a control and protection switch comprises a shell, wherein a push rod, a circuit breaker module, a moving contact, N groups of static contacts, a reset piece and a sliding chute are arranged in the shell, the push rod is positioned in the sliding chute and is arranged in a sliding manner, and the push rod and the reset piece are matched to fix the moving contact; the circuit breaker module is provided with a connecting part, one end of the moving contact is fixedly connected with the connecting part, the other end of the moving contact is provided with a moving contact, the fixed contacts are all located on the motion trail of the moving contact, the reset piece drives the moving contact to be linked with the fixed contacts, and N is more than or equal to 1 and less than or equal to 2.
Adopt above-mentioned structure setting, at first through the ejector pin, the setting of piece and spout reset, fixed coordination between ejector pin and the casing has been realized, the linkage effect between moving contact and ejector pin and the piece that resets has also been realized, and through the setting of connecting portion, the electrical connection effect of moving contact and circuit breaker module has been realized, setting through the moving contact, the electrical connection effect of moving contact and multiunit static contact has been realized, compared in prior art, moving contact one end is connected with circuit breaker module all the time, the switching-on of moving contact one end can not take place, the not circumstances of switching-on of the other end, holistic result of use has been guaranteed, and the holistic installation of contact mechanism is fixed more easily.
The fixed contacts comprise a first fixed contact and a second fixed contact, and the moving contact is located between the first fixed contact and the second fixed contact.
By adopting the structure, the electrical connection between the moving contact and the static contact is more convenient, and the connection effect is better.
Wherein, the connecting part is arranged in a flexible connection way.
By adopting the structure, the connecting part has a deformation effect, so that the connecting effect between the connecting part and the moving contact is better, and the phenomenon of fracture is not easy to occur.
Wherein, the ejector pin both sides are equipped with the fixed part, and the moving contact both sides are equipped with the recess, and the fixed part cooperates with the recess.
Adopt fixed part and recess setting, form the clamping effect through the cooperation of two fixed parts, and then through the cooperation of fixed part and recess to further strengthen the fixed effect between ejector pin and the moving contact.
The moving contact is provided with a first positioning bulge, the shell is provided with a second positioning bulge, one end of the reset piece is abutted against the first positioning bulge, and the other end of the reset piece is abutted against the second positioning bulge.
Adopt first arch and the protruding setting of second, play the fixed effect of location for it is easier to reset a piece installation, and is fixed more firm, difficult emergence skew or not hard up phenomenon.
The uniform end part of the static contact extends into the shell to be fixed, and the other end of the static contact is bent outwards to extend.
By adopting the structure, the static contact can form an electrical connection effect with external equipment.
The shell is provided with a limiting bulge, and the limiting bulge is positioned on the motion trail of the moving contact.
Adopt spacing protruding setting, play spacing fixed effect, prevent effectively that the moving contact from excessively rising the motion, influencing holistic result of use.
Wherein, be equipped with the spacing portion of a plurality of in the casing, the casing passes through spacing fixed circuit breaker module of portion.
The arrangement of the limiting part is adopted, so that the breaker module is positioned in the shell and is more firmly fixed.
Wherein, still be equipped with on the casing with static contact complex location portion.
The positioning part is arranged, so that the positioning and fixing effect is achieved, the static contact is easier to install and fix, and the matching effect with the moving contact is better.
The arc extinguishing device is further included, an arc striking part is arranged on the moving contact, and the arc striking part is matched with the arc extinguishing device.
The arc extinguishing device is matched with the arc striking part to achieve the effects of striking and extinguishing arc, so that the electric arc generated after the moving contact is communicated with the static contact can be quickly extinguished.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is an exploded view of embodiment 1 of the present invention;
fig. 3 is a schematic view of a partial structure of embodiment 1 of the present invention;
fig. 4 is a side view of a movable contact according to embodiment 1 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 6 is a partial structural schematic view of embodiment 2 of the present invention;
fig. 7 is a side view of fig. 6.
Detailed Description
Example 1:
referring to fig. 1-4, a contact mechanism of a control and protection switch includes a housing 1, a push rod 2, a circuit breaker module 3, a moving contact 4, N sets of fixed contacts 5, a reset element 6, and an arc extinguishing device 7.
It should be noted that N is greater than or equal to 1 and less than or equal to 2, in this embodiment, the value of N is taken as an example, that is, the number of the static contacts 5 is set in one group.
The casing 1 wholly is the L type form, and casing 1 includes first set casing 11 and second set casing 12, and first set casing 11 is connected fixedly through the buckle with second set casing 12 to the formation holds the chamber. The accommodating cavity is mainly used for accommodating the fixed ejector rod 2, the circuit breaker module 3, the moving contact 4, the static contact 5 and the reset piece 6, so that the integral structure of the contact mechanism is formed.
Be equipped with spacing arch 13 and the protruding 111 of second location on first set casing 11, spacing arch 13 is towards the protruding setting of moving contact 4, and spacing arch 13 is located the movement track of moving contact 4, sets up through spacing arch 13, plays spacing effect, prevents that moving contact 4 excessive movement from influencing the linkage effect. The second positioning protrusion 111 is located at the bottom of the first fixed shell 11 and protrudes toward the movable contact 4, and the second positioning protrusion 111 is mainly used for fixing the reset element 6 in cooperation with the first positioning protrusion 43, so that the positioning and fixing effect of the reset element 6 is realized.
Further, all be equipped with the spacing portion 14 of a plurality of on first set casing 11 and the second set casing 12, the circuit breaker module 3 is fixed in the cooperation of the spacing portion 14 of a plurality of to play spacing fixed effect, make circuit breaker module 3 be located 1 internal fixation of casing more firm.
Further, still be equipped with spout 15 on casing 1, spout 15 is connected the cooperation through first set casing 11 and second set casing 12 and is formed, and spout 15 is the intercommunication setting with holding the chamber, and spout 15 mainly used cooperates with ejector pin 2 to it is the slip setting to have realized that ejector pin 2 is for casing 1.
The circuit breaker module 3 is fixed in the accommodating cavity and is located on the left side of the ejector rod 2 and the movable contact 4, and is specifically shown in the attached drawings 1 and 2. The circuit breaker module 3 is provided with a connecting part 31, one end of the connecting part 31 is fixedly connected with a coil on the circuit breaker module 3, and the other end of the connecting part 31 is fixedly connected with one end of the movable contact 4, so that the electrical connection effect of the circuit breaker module 3 and the movable contact 4 is realized. Compared with the prior art, the connecting effect between the breaker module 3 and the moving contact 4 is better, the situation that one end of the moving contact 4 is connected and the other end of the moving contact is not connected can not occur, and the integral using effect is ensured. Here, connecting portion 31 sets up for the flexible coupling in this embodiment, and is preferred, and connecting portion 31 adopts the annealed copper wire setting for connecting portion 31 has better deformation effect, and it is better to connect fixed effect, is difficult for the fracture.
In addition, because linkage between ejector pin 2 and the wane, other parts of circuit breaker module 3 etc. are prior art, no longer give unnecessary details in this embodiment.
The moving contact 4 is fixed in the shell 1 and is mainly used for being matched with the static contact 5, so that the integral electrical connection effect is realized. The moving contact 4 is located the piece 6 top that resets, and the central point of moving contact 4 puts and stretches into in the draw-in groove 21, and moving contact 4 both sides are equipped with recess 41, recess 41 and fixed part 22 cooperation to through the pressing of the piece 6 that resets, realized moving contact 4 and ejector pin 2 and reset the fixed effect between the piece 6, and then through ejector pin 2 and the cooperation of the piece 6 that resets, thereby realize and the static contact 5 between switch-on and separation.
Further, the moving contact 4 is provided with a moving contact 42 at one end facing the fixed contact 5, and since the number of the fixed contacts 5 is one in the present embodiment, the number of the moving contacts 42 is one and is arranged in a protruding manner, compared with the prior art, the connection between the moving contact 4 and the fixed contact 5 is simpler.
Furthermore, the movable contact 4 is further provided with a first positioning protrusion 43 and an arc ignition portion 44. First location arch 43 is located the center department of moving contact 4 bottom and is the protrusion setting, and first location arch 43 mainly used cooperates with second location arch 111 to the realization is fixed to the location of piece 6 that resets, makes the piece 6 that resets installation fixed more convenient, and is fixed more firm. The arc striking portion 44 is located at the moving contact 4 and extends towards one side of the arc extinguishing device 7 in an inclined manner, and the arc striking portion 44 is mainly used for being matched with the arc extinguishing device 7, so that an electric arc generated after the moving contact 4 is connected with the static contact 5 can be rapidly introduced into the arc extinguishing device 7 and extinguished.
The fixed contact 5 comprises a first fixed contact 51, the first fixed contact 51 is located above the movable contact 42 and on the motion track, and the first fixed contact 51 is mainly used for matching with the movable contact 4, so that the overall electrical connection effect is realized. Through the structure arrangement, the fixed contact mechanism can be electrically connected with the movable contact 4 through the independent group of fixed contacts 5, so that the integral electrical connection effect is realized, the whole structure of the contact mechanism is simpler, and the installation and the fixation are easier. Further, the first fixed contact 51 is integrally bent and formed into a Z-shape, that is, one end of the first fixed contact 51 is fixed in the housing 1, and the other end of the first fixed contact is bent outward and extends out, so that the electrical connection effect between the first fixed contact 51 and an external device is realized.
The reset piece 6 is fixed below the movable contact 4, specifically, one end of the reset piece 6 abuts against the first positioning protrusion 43, and the other end of the reset piece 6 abuts against the second positioning protrusion 111, so that the fixing effect of the reset piece 6 is realized. The reset piece 6 is mainly used for driving the moving contact 4 to move, so that the integral electrical connection effect is realized. In this embodiment, the piece that resets 6 adopts the conical spring setting, through this kind of structure setting for the elastic effect that resets 6 is better, and it is more firm to be located the fixed of casing 1, simultaneously, also has better shock attenuation effect, makes the moving contact 4 move more steadily.
Further, the arc extinguishing device 7 is further included, the arc extinguishing device 7 is fixed in the shell 1 and located below the first fixed contact 51, and the arc extinguishing device 7 is mainly used for being matched with the arc striking portion 44, so that electric arcs generated after the movable contact 4 is connected with the first fixed contact 51 can be extinguished quickly, and the overall use safety is guaranteed.
The event adopts above-mentioned structure to set up, at first, through ejector pin 2, reset piece 6 and spout 15's setting, the fixed cooperation between ejector pin 2 and casing 1 has been realized, the linkage effect between moving contact 4 and ejector pin 2 and the piece 6 that resets has also been realized, and through the setting of connecting portion 31, the electrical connection effect of moving contact 4 and circuit breaker module 3 has been realized, through the setting of moving contact 42, the electrical connection effect of moving contact 4 and static contact 5 has been realized, compare in prior art, moving contact 4 one end is connected with circuit breaker module 3 all the time, the switching-on of moving contact one end can not take place, the circumstances that the other end is not switched on, holistic result of use has been guaranteed, and the holistic installation of contact mechanism is fixed more easily.
Example 2:
referring to fig. 5-7, the difference between the embodiment 2 and the embodiment 1 is that in this embodiment, the N value is two, that is, the number of the fixed contacts 5 is two, and the fixed contacts further include a second fixed contact 52. Here, since the first stationary contact 51 has already been described in detail in embodiment 1, it is not described in detail in this embodiment.
The second static contact 52 is installed below the arc-extinguishing device 7 and is located below the movable contact 4 and on the motion track, namely, one end of the second static contact 52 extends into the positioning portion 16 to be fixed, and the other end of the second static contact is fixed at the bottom of the arc-extinguishing device 7 and is bent outwards to extend. Here, it is worth mentioning that, in the present embodiment, the number of the movable contacts 42 is two, that is, one movable contact 42 is disposed to protrude toward the first fixed contact 51, and the other movable contact 42 is disposed to protrude toward the second fixed contact 52.
Meanwhile, a positioning portion 16 is also included.
The positioning portion 16 is located on the inner wall of the first fixed housing 11 and is protruded and located below the movable contact 4, the positioning groove 161 is arranged on the positioning portion 16, the positioning groove 161 is matched with the second fixed contact 52, and one end portion of the second fixed contact 52 extends into the positioning groove 161 for fixation, so that the positioning and fixing effects are achieved, and the second fixed contact 52 is more convenient to install and fix.
Compared with the prior art, the contact mechanism can form an electrical connection effect by matching the multiple groups of fixed contacts 5 with the movable contacts 4, and is more compact in overall structure, quicker to use and lower in cost.
Claims (10)
1. The utility model provides a control and protection switch's contact mechanism which characterized in that: the circuit breaker comprises a shell, wherein a push rod, a circuit breaker module, a moving contact, N groups of static contacts, a reset piece and a chute are arranged in the shell, the push rod is positioned in the chute in a sliding manner, and the moving contact is fixed by matching the push rod with the reset piece; the circuit breaker module is provided with a connecting part, one end of the moving contact is fixedly connected with the connecting part, the other end of the moving contact is provided with a moving contact, the fixed contacts are all located on the motion trail of the moving contact, the reset piece drives the moving contact to be linked with the fixed contacts, and N is more than or equal to 1 and less than or equal to 2.
2. A contact mechanism for a control and protection switch according to claim 1, characterized in that: the fixed contact comprises a first fixed contact and a second fixed contact, and the moving contact is positioned between the first fixed contact and the second fixed contact.
3. A contact mechanism for a control and protection switch according to claim 1, characterized in that: the connecting part is in flexible connection arrangement.
4. A contact mechanism for a control and protection switch according to claim 1, characterized in that: the fixed parts are arranged on two sides of the ejector rod, the grooves are arranged on two sides of the moving contact, and the fixed parts are matched with the grooves.
5. A contact mechanism for a control and protection switch according to claim 1, characterized in that: be equipped with first location arch on the moving contact, be equipped with the second location arch on the casing, the one end that resets offsets with first location arch, and the other end offsets with the second location arch.
6. A contact mechanism for a control and protection switch according to claim 1, characterized in that: the uniform end part of the static contact extends into the shell to be fixed, and the other end of the static contact is bent outwards to extend.
7. A contact mechanism for a control and protection switch according to claim 1, characterized in that: the shell is provided with a limiting bulge, and the limiting bulge is positioned on the motion track of the moving contact.
8. A contact mechanism for a control and protection switch according to claim 7, wherein: be equipped with the spacing portion of a plurality of in the casing, the casing passes through spacing fixed circuit breaker module of portion.
9. A contact mechanism for a control and protection switch according to claim 8, wherein: and the shell is also provided with a positioning part matched with the static contact.
10. A contact mechanism for a control and protection switch according to claim 1, characterized in that: still include arc control device, be equipped with the run-on portion on the moving contact, run-on portion and arc control device cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221818359.6U CN218004762U (en) | 2022-07-13 | 2022-07-13 | Contact mechanism of control and protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221818359.6U CN218004762U (en) | 2022-07-13 | 2022-07-13 | Contact mechanism of control and protection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218004762U true CN218004762U (en) | 2022-12-09 |
Family
ID=84314812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221818359.6U Active CN218004762U (en) | 2022-07-13 | 2022-07-13 | Contact mechanism of control and protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218004762U (en) |
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2022
- 2022-07-13 CN CN202221818359.6U patent/CN218004762U/en active Active
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