CN210120102U - Arc extinguishing chamber mounting structure of miniature circuit breaker - Google Patents
Arc extinguishing chamber mounting structure of miniature circuit breaker Download PDFInfo
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- CN210120102U CN210120102U CN201921536951.5U CN201921536951U CN210120102U CN 210120102 U CN210120102 U CN 210120102U CN 201921536951 U CN201921536951 U CN 201921536951U CN 210120102 U CN210120102 U CN 210120102U
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Abstract
The utility model provides an arc extinguishing chamber mounting structure of miniature circuit breaker, include: the first stop block and the second stop block are L-shaped, are arranged on one side far away from the arc striking rib group and are arranged oppositely from top to bottom, a first stop plate is arranged between the first stop block and the arc striking rib group, and an arc striking sheet is arranged between the second stop block and the arc striking rib group; the left end of the first arc extinguishing cover abuts against the right side faces of the first stop block and the second stop block, the right end of the first arc extinguishing cover abuts against the end face of the arc striking rib group, the upper end of the first arc extinguishing cover abuts against the first baffle plate, and the lower end of the first arc extinguishing cover abuts against the arc striking sheet; and the top of the left end of the second arc extinguishing cover is abutted against the L-shaped inner side face of the first stop block, the middle part of the left end of the second arc extinguishing cover is abutted against the positioning block, the bottom of the left end of the second arc extinguishing cover is abutted against the top face of the first stop block, and the right end of the second arc extinguishing cover is abutted against the end face of the arc striking rib group. Above-mentioned mounting structure can be applicable to first arc-extinguishing chamber of installation and second arc-extinguishing chamber simultaneously, consequently only need produce one set of mould can, compare with prior art, reduced the input cost.
Description
Technical Field
The utility model relates to a miniature circuit breaker technical field, concretely relates to miniature circuit breaker's arc-extinguish chamber mounting structure.
Background
The miniature circuit breaker is a protective electric appliance installed on a terminal distribution line and is mainly used for overload and short-circuit protection of lines and electric equipment, and generally comprises an operating mechanism, an electromagnetic tripping mechanism, a thermal tripping mechanism, an arc extinguishing mechanism and the like. At present, most domestic miniature circuit breakers adopt two arc-extinguishing chambers (such as C45 and C65) with different sizes, so that two sets of dies are required for producing corresponding miniature circuit breaker shells, and the investment cost is increased.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the miniature circuit breaker among the prior art and needing two sets of moulds to produce the defect that can install the miniature circuit breaker casing of unidimensional arc-extinguish chamber to a miniature circuit breaker's that can install two kinds of unidimensional arc-extinguish chambers simultaneously arc-extinguish chamber mounting structure is provided.
Therefore, the utility model provides an arc extinguishing chamber mounting structure of miniature circuit breaker, include:
the first stop block and the second stop block are L-shaped, are arranged on one side far away from the arc striking rib group and are arranged oppositely from top to bottom, a first baffle plate is arranged between the first stop block and the arc striking rib group, and an arc striking sheet is arranged between the second stop block and the arc striking rib group;
the left end of the first arc extinguishing cover abuts against the right side faces of the first stop block and the second stop block, the right end of the first arc extinguishing cover abuts against the end face of the arc striking rib group, the upper end of the first arc extinguishing cover abuts against the first baffle plate, and the lower end of the first arc extinguishing cover abuts against the arc striking sheet;
and the top of the left end of the second arc extinguishing cover is abutted against the L-shaped inner side surface of the first stop block, the middle part of the left end of the second arc extinguishing cover is abutted against the positioning block, the bottom of the left end of the second arc extinguishing cover is abutted against the top surface of the first stop block, and the right end of the second arc extinguishing cover is abutted against the end surface of the arc leading rib group.
One end of the positioning block abuts against the second arc-extinguishing cover, the other end of the positioning block extends towards the opening close to the shell to form an arc-striking block, and the arc-striking block is of an arc-shaped structure.
The shell is provided with a plurality of positioning grooves which are arranged in parallel and are formed at the positions close to the arc striking rib group, and the positioning grooves are suitable for being connected with the arc extinguishing grid pieces of the first arc extinguishing chamber or the second arc extinguishing chamber in a positioning mode.
And at least one limiting block in limiting connection with the arc extinguishing grid pieces of the first arc extinguishing chamber and the second arc extinguishing chamber is formed in the middle of the shell.
The utility model discloses technical scheme has following advantage:
1. the utility model provides an arc extinguishing chamber mounting structure of miniature circuit breaker, first arc extinguishing chamber, its left end offsets with the right flank of first dog and second dog, and the right-hand member offsets with the terminal surface of striking muscle group, and the upper end offsets with first baffle, and the lower extreme offsets with the striking piece; and the top of the left end of the second arc extinguishing cover is abutted against the L-shaped inner side face of the first stop block, the middle part of the left end of the second arc extinguishing cover is abutted against the positioning block, the bottom of the left end of the second arc extinguishing cover is abutted against the top face of the first stop block, and the right end of the second arc extinguishing cover is abutted against the end face of the arc striking rib group. The mounting structure can be simultaneously suitable for mounting the first arc-extinguishing chamber and the second arc-extinguishing chamber, so that only one set of die is required to be produced, and compared with the prior art, the input cost is reduced; in addition, the right ends of the first arc-extinguishing chamber and the second arc-extinguishing chamber are respectively connected with the arc striking rib group in a propping manner, and the arc-extinguishing chamber has the advantage of simple structure.
2. The utility model provides a miniature circuit breaker's arc-extinguishing chamber mounting structure, locating piece one end offsets with the second arc-extinguishing chamber, and the other end is towards the opening part extension formation arc-striking piece that is close to the casing, and the arc-striking piece is the arc structure, and the exit that the arc-extinguishing chamber was divided into two arc-striking grooves with the arc-striking piece to the arc extinguishing more easily, and arc-striking piece and locating piece integrated into one piece have simple structure's advantage.
3. The utility model provides an arc extinguishing cover mounting structure of miniature circuit breaker, casing are close to the constant head tank that the shaping of arc-striking muscle group department has a plurality of parallel arrangement, and the constant head tank is suitable for the arc extinguishing bars piece location with first arc extinguishing cover or second arc extinguishing cover to be connected, makes like this fix a position more firmly between first arc extinguishing cover and second arc extinguishing cover and the casing, and mutually supported constant head tank and arc extinguishing bars piece have simple structure's advantage.
4. The utility model provides an arc-extinguishing chamber mounting structure of miniature circuit breaker, the middle part shaping of casing have at least one with the spacing stopper of being connected of arc-extinguishing bars piece of first arc-extinguishing chamber and second arc-extinguishing chamber to can inject the position between casing and first arc-extinguishing chamber and the second arc-extinguishing chamber.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an arc extinguishing chamber mounting structure of a miniature circuit breaker according to the present invention;
figure 2 is a schematic view of a first arc chute mounted on the miniature circuit breaker;
figure 3 is a schematic view of a second arc chute mounted on the miniature circuit breaker;
figure 4 is a front view of the first arc chute;
figure 5 is a bottom view of the first arc chute.
Description of reference numerals: 1. a first stopper; 11/21, right flank; 12. an inner side surface; 2. a second stopper; 22. a top surface; 3. an arc striking rib group; 4. a first baffle plate; 5. an arc striking sheet; 6. a first arc chute; 61/71, arc extinguishing grid pieces; 62. a first positioning projection; 63. a second positioning projection; 7. a second arc chute; 8. positioning blocks; 81. an arc striking block; 9. a housing; 91. an opening; 92. positioning a groove; 93. and a limiting block.
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, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope 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 the 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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Examples
The embodiment provides an arc extinguishing chamber mounting structure of a miniature circuit breaker, as shown in fig. 1, comprising a first stop block 1, a second stop block 2, an arc striking rib group 3, a first stop block 4, an arc striking sheet 5, a positioning block 8 and a positioning groove 92.
One end of the positioning block 8 is abutted to the second arc-extinguishing chamber 7, and the other end of the positioning block extends towards the opening 91 close to the shell 9 to form an arc-striking block 81, wherein the arc-striking block 81 is of an arc-shaped structure.
As shown in fig. 2, the left end of the first arc-extinguishing chamber 6 abuts against the right side surfaces 11/21 of the first stop block 1 and the second stop block 2, the right end abuts against the end surface of the arc-striking rib group 3, the upper end abuts against the first baffle 4, and the lower end abuts against the arc-striking plate 5.
As shown in fig. 3, the top of the left end of the second arc-extinguishing chamber 7 abuts against the L-shaped inner side surface 12 of the first stop block 1, the middle of the left end abuts against the positioning block 8, the bottom of the left end abuts against the top surface 22 of the first stop block 1, and the right end abuts against the end surface of the arc-guiding rib group 3.
The arc-extinguishing chamber mounting structure of the miniature circuit breaker can be simultaneously suitable for mounting the first arc-extinguishing chamber 6 and the second arc-extinguishing chamber 7, so that only one set of mould is required to be produced, and compared with the prior art, the investment cost is reduced; in addition, the right ends of the first arc-extinguishing chamber 6 and the second arc-extinguishing chamber 7 are connected with the arc striking bar group 3 in a propping manner, and the arc-extinguishing chamber has the advantage of simple structure.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (4)
1. The utility model provides an arc-extinguishing chamber mounting structure of miniature circuit breaker which characterized in that: the method comprises the following steps:
the arc striking mechanism comprises a first stop block (1) and a second stop block (2), wherein the first stop block (1) and the second stop block (2) are L-shaped, are arranged on one side far away from an arc striking rib group (3) and are arranged oppositely from top to bottom, a first stop plate (4) is arranged between the first stop block (1) and the arc striking rib group (3), and an arc striking sheet (5) is arranged between the second stop block (2) and the arc striking rib group (3);
the left end of the first arc extinguishing cover (6) abuts against the right side faces (11,21) of the first stop block (1) and the second stop block (2), the right end of the first arc extinguishing cover abuts against the end face of the arc guiding rib group (3), the upper end of the first arc extinguishing cover abuts against the first baffle plate (4), and the lower end of the first arc extinguishing cover abuts against the arc guiding sheet (5);
and the top of the left end of the second arc extinguishing cover (7) is abutted against the L-shaped inner side surface (12) of the first stop block (1), the middle part of the left end is abutted against the positioning block (8), the bottom of the left end is abutted against the top surface (22) of the first stop block (1), and the right end of the second arc extinguishing cover is abutted against the end surface of the arc leading rib group (3).
2. An arc chute mounting structure of a small size circuit breaker according to claim 1, wherein: one end of the positioning block (8) is abutted to the second arc extinguishing cover (7), the other end of the positioning block extends towards the opening (91) close to the shell (9) to form an arc striking block (81), and the arc striking block (81) is of an arc-shaped structure.
3. The arc chute mounting structure of a small size circuit breaker according to claim 1 or 2, wherein: the shell (9) is close to the arc striking rib group (3) and is formed with a plurality of positioning grooves (92) which are arranged in parallel, and the positioning grooves (92) are suitable for being connected with arc extinguishing grid pieces (61 and 71) of the first arc extinguishing chamber (6) or the second arc extinguishing chamber (7) in a positioning mode.
4. An arc chute mounting structure of a small size circuit breaker according to claim 3, wherein: and at least one limiting block (93) in limiting connection with the arc extinguishing grid pieces (61,71) of the first arc extinguishing chamber (6) and the second arc extinguishing chamber (7) is formed in the middle of the shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921536951.5U CN210120102U (en) | 2019-09-16 | 2019-09-16 | Arc extinguishing chamber mounting structure of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921536951.5U CN210120102U (en) | 2019-09-16 | 2019-09-16 | Arc extinguishing chamber mounting structure of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210120102U true CN210120102U (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921536951.5U Active CN210120102U (en) | 2019-09-16 | 2019-09-16 | Arc extinguishing chamber mounting structure of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210120102U (en) |
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2019
- 2019-09-16 CN CN201921536951.5U patent/CN210120102U/en active Active
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