CN215183578U - Low-voltage circuit breaker - Google Patents
Low-voltage circuit breaker Download PDFInfo
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- CN215183578U CN215183578U CN202121799221.1U CN202121799221U CN215183578U CN 215183578 U CN215183578 U CN 215183578U CN 202121799221 U CN202121799221 U CN 202121799221U CN 215183578 U CN215183578 U CN 215183578U
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- cover
- circuit breaker
- auxiliary wiring
- terminal cover
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Abstract
The utility model provides a low-voltage circuit breaker, which comprises a circuit breaker main body, an auxiliary wiring terminal and a terminal cover; the number of the auxiliary connecting terminals is multiple, and the auxiliary connecting terminals are respectively arranged at the top end of the breaker main body; the terminal cover is covered with the auxiliary wiring terminal, a plurality of limiting cavities are arranged in the terminal cover, and the limiting cavities and the auxiliary wiring terminal are arranged in a one-to-one correspondence manner so as to limit the auxiliary wiring terminal; the end of the terminal cover, which faces away from the wiring end of the auxiliary wiring terminal, is rotatably connected with the circuit breaker main body, and the end of the terminal cover, which faces the wiring end of the auxiliary wiring terminal, is detachably connected with the circuit breaker main body. Due to the fact that the terminal cover is arranged, the limiting cavities corresponding to the auxiliary wiring terminals one to one are arranged in the terminal cover, and the auxiliary wiring terminals are limited, and therefore the situation that when the low-voltage circuit breaker floats on the sea surface, the auxiliary wiring terminals shake contact pins to cause deformation and signal loss is avoided. In addition, the terminal cover is provided with the auxiliary wiring terminal, so that corrosive gas and salt mist water vapor are prevented from entering, and the protection of the auxiliary wiring terminal is realized.
Description
Technical Field
The utility model relates to a circuit breaker technical field especially relates to a low-voltage circuit breaker.
Background
At present, on the circuit breaker of marine application, supplementary terminal usually can float along with the sea and rock and lead to contact pin deformation and signal loss, also can't deal with the corrosion environment on the ocean simultaneously.
Therefore, how to protect the auxiliary terminal and avoid the deformation of the auxiliary pin and the signal loss becomes a technical problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a low-voltage circuit breaker to realize the protection of auxiliary connection terminal, avoid auxiliary connection contact pin to warp and the signal loses.
In order to achieve the above object, the utility model provides a following technical scheme:
a low-voltage circuit breaker comprises a circuit breaker main body, an auxiliary wiring terminal and a terminal cover;
the number of the auxiliary wiring terminals is multiple, and the auxiliary wiring terminals are respectively arranged at the top end of the breaker main body;
the terminal cover is provided with the auxiliary wiring terminal, a plurality of limiting cavities are arranged in the terminal cover, and the limiting cavities and the auxiliary wiring terminal are arranged in a one-to-one correspondence manner so as to limit the auxiliary wiring terminal;
the end of the terminal cover, which is far away from the wiring end of the auxiliary wiring terminal, is rotatably connected with the circuit breaker main body, and the end of the terminal cover, which is far towards the wiring end of the auxiliary wiring terminal, is detachably connected with the circuit breaker main body.
In a particular embodiment, the low-voltage circuit breaker further comprises a rotating cover;
the rotating cover can be opened and closed to close an arc extinguish chamber on the breaker main body, and when the breaker main body is in short circuit, the rotating cover can be opened.
In another specific embodiment, the number of said rotating caps is 1;
the bottom end of the rotary cover is hinged with the end of the terminal cover facing the wiring end of the auxiliary wiring terminal, the top end of the rotary cover is hermetically connected with an arc extinguishing top cover at the top end of the breaker main body,
or
The bottom end of the rotating cover is hinged to the top end of the terminal cover, and the top end of the rotating cover can be opened and closed and is connected with the arc extinguishing top cover in a sealing mode.
In another specific embodiment, the number of said rotating caps is 2;
1 the bottom of rotatory lid with the terminal lid faces to the end of auxiliary binding post's wiring end is articulated, another 1 the bottom of rotatory lid with arc extinguishing top cap on the circuit breaker main part top is articulated, and 2 the top of rotatory lid seals the lock joint.
In another specific embodiment, at least one side wall of the terminal cover is provided with a limiting part, and the limiting part is used for being connected with the arc extinguishing top cover so as to expose the wiring end of the auxiliary wiring terminal.
In another embodiment, the rotary cover and the terminal cover are transparent covers.
In another embodiment, the terminal cover is detachably coupled to the circuit breaker main body by screws.
In another specific embodiment, the terminal cover is provided with a wiring groove for limiting and connecting the wire of the auxiliary wiring terminal.
In another particular embodiment, the low-voltage circuit breaker further comprises a sealing rubber strip;
the sealing rubber strip is arranged at the bottom end of the terminal cover and used for sealing the terminal cover and the breaker main body.
In another particular embodiment, the low-voltage circuit breaker further comprises a rubber collar;
the rubber clamping ring is installed at the wire outlet on the terminal cover in a sealing mode.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
According to the technical scheme, the utility model provides a low voltage circuit breaker owing to set up the terminal cover, be provided with in the terminal cover with the spacing chamber of supplementary binding post one-to-one, spacing supplementary binding post, consequently, avoided low voltage circuit breaker when the sea floats, supplementary terminal rocks the contact pin that leads to and warp and the signal loses.
In addition, because the terminal cover establishes supplementary binding post, consequently, avoided corrosive gas and salt fog steam to soak, realized the protection of supplementary terminal.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without performing novelty work.
Fig. 1 is a schematic three-dimensional structure diagram of a low-voltage circuit breaker provided by the present invention in a normal installation state without a rotating cover;
FIG. 2 is a schematic three-dimensional structure of the wiring of FIG. 1;
fig. 3 is a schematic three-dimensional structure diagram of another angular direction of the low-voltage circuit breaker provided by the present invention in a normal installation state without the rotating cover;
FIG. 4 is a schematic three-dimensional structure of the wiring of FIG. 3;
fig. 5 is a schematic three-dimensional structure diagram of a low-voltage circuit breaker including 2 rotating covers and being in a normal installation state;
FIG. 6 is a schematic three-dimensional structure of FIG. 5 in a short-circuit pop-open state;
fig. 7 is a schematic three-dimensional structure diagram of another angular direction of the low-voltage circuit breaker provided by the present invention, which includes 2 rotating covers and is in a normal installation state;
FIG. 8 is a schematic three-dimensional structure of FIG. 7 in a short-circuit pop-open state;
fig. 9 is a schematic diagram of a three-dimensional structure of a low-voltage circuit breaker including 1 rotating cover and in a normal installation state.
In fig. 1-9:
the circuit breaker comprises a circuit breaker main body 1, an auxiliary wiring terminal 2, a terminal cover 3, a rotating cover 4, a rotating shaft 5 and an arc extinguishing top cover 6.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to fig. 1 to 9 in the embodiment of the present invention. The present invention can be realized in various forms, and is not limited to the embodiment described in the present embodiment. The following detailed description is provided to facilitate a more thorough understanding of the present disclosure, and the terms used to indicate orientation and orientation are merely provided for relative positions of illustrated structures in the accompanying drawings.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, elements, components, and/or groups thereof. The following description is of the preferred embodiment of the present invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the invention. The protection scope of the present invention is subject to the limitations defined by the appended claims.
As shown in fig. 1-4, the utility model discloses a low-voltage circuit breaker, can use in the coastal waters, corrosion resistance is good.
Specifically, the low-voltage circuit breaker includes circuit breaker main part 1, auxiliary wiring terminal 2 and terminal cover 3, and the number of auxiliary wiring terminal 2 is a plurality of, installs respectively on the top of circuit breaker main part 1. It should be noted that the auxiliary terminal block 2 is an integrated terminal block.
The terminal cover 3 covers the auxiliary terminal block 2, and it is understood that the terminal cover 3 is made of a corrosion-resistant material.
Be provided with a plurality of spacing chambeies in the terminal cover 3, and spacing chamber and the setting of supplementary binding post 2 one-to-one to spacing supplementary binding post 2. Namely the spacing cavity is matched with the auxiliary connecting terminal 2.
Certainly, the terminal cover 3 is provided with an outlet through which a wire can pass, and the wire is electrically connected with the auxiliary wiring terminal 2 and then passes through the outlet.
The end of the terminal cover 3 facing the terminal end of the auxiliary terminal 2 is detachably connected to the breaker main body 1, and it is understood that the detachable connection may be a screw connection or a snap connection.
When the wiring is required, the end of the terminal cover 3 facing the terminal end of the auxiliary wiring terminal 2 is opened, and then the terminal cover 3 is rotated to expose the terminal end of the auxiliary wiring terminal 2, facilitating the wiring.
The terminal of the auxiliary terminal 2 is mounted facing the front of the breaker body 1.
The terminal cover 3 may be detachably attached to the circuit breaker main body 1 as a whole.
The utility model provides a low-voltage circuit breaker, owing to set up terminal cover 3, be provided with in the terminal cover 3 with the spacing chamber of the 2 one-to-one of supplementary binding post, spacing supplementary binding post 2, consequently, avoided low-voltage circuit breaker when the sea floats, supplementary terminal head rocks the contact pin that leads to and warp and the signal loses.
In addition, because the terminal cover 3 covers the auxiliary wiring terminal 2, the invasion of corrosive gas and salt mist water vapor is avoided, and the protection of the auxiliary wiring terminal is realized.
In some embodiments, the low-voltage circuit breaker further comprises a rotating cover 4, the rotating cover 4 can open and close an arc extinguishing chamber on the circuit breaker body 1, and the rotating cover 4 can be opened when the circuit breaker body 1 is short-circuited.
Specifically, the structure of the rotary cover 4 is not limited, and may be an arc-shaped cover, a rectangular cover, or the like.
In some embodiments, the utility model discloses a number of swivel cap 4 is 1, and the bottom of swivel cap 4 and terminal cover 3 are articulated towards that end of auxiliary binding post 2's wiring end, and the top of swivel cap 4 and the arc extinguishing top cap 6 sealing connection on 1 top of circuit breaker main part for when swivel cap 4 is in the closed condition, can also cover and establish terminal cover 3, further avoided steam etc. to get into in the auxiliary binding post 2.
It should be noted that the bottom end of the rotating cover 4 may be hinged to the top end of the terminal cover 3, and the top end of the rotating cover 4 may be opened and closed to be hermetically connected to the arc-extinguishing top cover 6, so that when the rotating cover 4 is in a closed state, only the open end of the arc-extinguishing top cover 6 is closed, as shown in fig. 9. The top end of the rotary cover 4 is provided with a containing groove for containing the terminal cover 3 when opened, so as to contain the terminal cover 3.
Specifically, the arc extinguishing top cover 6 on the top end of the circuit breaker main body 1 is a rectangular cover, and the arc extinguishing top cover 6 is free of shielding towards the front opening end of the circuit breaker main body 1 or is arranged in a hollow mode. The top of rotating cap 4 and the open end of arc extinguishing top cap 6 can open and shut and be connected, when meetting the condition of short circuit, a large amount of arc steam is from the release of explosion chamber escape, and rotating cap 4 can be separately with arc extinguishing top cap 6 fast for arc steam can follow the open end of arc extinguishing top cap 6 and escape, has avoided too much arc steam to pile up and has not gone out in arc extinguishing top cap 6, causes the danger of blasting arc extinguishing top cap 6.
For buffer gas to the impact of arc extinguishing top cap 6, the utility model discloses an arc extinguishing top cap 6 is for increasing the top cap for 6 inner chambers of arc extinguishing top cap are highly increased to 100mm by original 52 mm. Of course, the arc-extinguishing cover 6 is not limited to the above-mentioned height, and may be set to other heights as needed.
In order to avoid arc steam's pressure when pushing open the rotating-cover 4, cause rotating-cover 4 to collide with circuit breaker main part 1, the utility model discloses an install pivot 5 on the terminal cover 3, pivot 5 shelters from in terminal cover 3, terminal cover 3 is extended at the both ends of pivot 5, the mounting groove has been seted up to rotating-cover 4's bottom, the cell wall respectively with the both ends rotatable coupling of pivot 5 in the both sides of mounting groove, and when rotating-cover 4 was opened to certain angle (this angle can be set for as required), the tank bottom of mounting groove and the holding surface butt at terminal cover 3 tops, terminal cover 3 had spacing further opening of rotating-cover 4 promptly. It should be noted that, the opening angle of the limiting rotary cover 4 is not limited to the above structure, a locking structure of the limiting rotary cover 4 can be arranged on the terminal cover 3, the specific locking structure can include a torsion spring and a limiting rod in a compression state, a sliding groove is formed in the side wall of the terminal cover 3, the bottom end of the rotary cover 4 is rotatably connected with the terminal cover 3 through a rotating shaft 5 and the like, sliding rods in sliding fit with the sliding grooves are arranged on the two side walls of the rotary cover 4, one end of the limiting rod is connected with the torsion spring, and the torsion spring drives the limiting rod to close the end of the sliding groove. In an initial state, namely when the rotating cover 4 seals the arc extinguishing top cover 6, the sliding rod is positioned at the head end of the sliding chute; when the rotating cover 4 is opened under the pressure of the arc steam, the rotating cover 4 rotates, the sliding rod slides in the sliding groove until the limiting rod is pushed away to enter the tail end of the sliding groove, the limiting rod locks the rotating cover 4 under the restoring force of the torsion spring, and the rotating cover 4 is prevented from shaking back and forth.
Of course, the rotating cover 4 may not be provided, and only the open end of the arc-extinguishing top cover 6 facing the front surface of the circuit breaker main body 1 is not shielded or hollowed out, so that arc steam can rapidly escape.
In other embodiments, the number of the rotating covers 4 is 2, as shown in fig. 5-8, wherein the bottom end of 1 rotating cover 4 is hinged to the end of the terminal cover 3 facing the terminal of the auxiliary connecting terminal 2, the bottom end of the other 1 rotating cover 4 is hinged to the arc extinguishing top cover 6 on the top end of the breaker main body 1, and the top ends of the 2 rotating covers 4 are hermetically fastened. The buckling here means that the rotary covers 4 are lapped together by their own front edges.
In some embodiments, at least one side wall of the terminal cover 3 is provided with a limiting portion, and the limiting portion is used for being connected with the arc extinguishing top cover 6 to expose the terminal of the auxiliary wiring terminal 2 for facilitating wiring.
Specifically, the limiting part can be a hook structure, a buckle structure and the like.
Taking the situation that only 1 rotating cover 4 is included as an example, when the low-voltage circuit breaker provided by the utility model is used, the terminal cover 3 is firstly manually rotated to a certain angle (45-70 degrees) close to the back direction of the circuit breaker main body 1 and then is attached to the arc extinguishing top cover 6 for clamping, the auxiliary wiring end is exposed, and the wiring operation is convenient; after the wiring is finished, the manual recovery terminal cover 3 is turned down to be locked; then, the rotating cover 4 is pushed up to be sealed and locked with the arc extinguishing top cover 6, so that a sealing effect is achieved; the arc extinguishing switch of the low-voltage circuit breaker is put into normal operation, once short circuit occurs, the instantaneous huge airflow pushes the rotating cover 4 to bounce open, the rotating cover is opened to the supporting surface of the terminal cover 3 to stop, the exposed space releases arc energy, and the arc extinguishing top cover 6 and the auxiliary end are prevented from being exploded; after the fault is eliminated, the recovery rotating cover 4 is manually pushed upwards to seal the arc extinguishing top cover 6, and the sealing and waterproof effects are achieved again.
In order to facilitate the observation of the wiring condition on the top end of the breaker main body 1, the utility model discloses a rotating cover 4 and terminal cover 3 are transparent covers. Of course, the arc extinguishing top cover 6 may be a transparent cover.
In some embodiments, the terminal cover 3 is detachably connected to the circuit breaker main body 1 by screws, and stable connection of the terminal cover 3 to the circuit breaker main body 1 is achieved.
In order to further realize the stable connection of supplementary terminal and wire, the utility model discloses a be provided with the trough of spacing connection auxiliary binding post 2's wire on the terminal cover 3.
Further, the utility model discloses a low-voltage circuit breaker still includes the rubber rand, and rubber rand seal installation is in the wire outlet department on terminal cover 3, and the wire outlet switches on with the trough.
Further, the utility model discloses a low voltage circuit breaker still includes joint strip, and joint strip sets up in the bottom of terminal cover 3 for sealed terminal cover 3 and circuit breaker main part 1.
Specifically, the sealing rubber strip can be arranged at the position where a gap exists between the arc extinguishing end cover and the rotating cover 4.
It should be noted that the terms indicating the orientation in the present document, such as upper and lower, are set in the direction of fig. 1 in the specification, and are not intended to have other specific meanings for convenience of description.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A low-voltage circuit breaker is characterized by comprising a circuit breaker main body, an auxiliary wiring terminal and a terminal cover;
the number of the auxiliary wiring terminals is multiple, and the auxiliary wiring terminals are respectively arranged at the top end of the breaker main body;
the terminal cover is provided with the auxiliary wiring terminal, a plurality of limiting cavities are arranged in the terminal cover, and the limiting cavities and the auxiliary wiring terminal are arranged in a one-to-one correspondence manner so as to limit the auxiliary wiring terminal;
the end of the terminal cover, which is far away from the wiring end of the auxiliary wiring terminal, is rotatably connected with the circuit breaker main body, and the end of the terminal cover, which is far towards the wiring end of the auxiliary wiring terminal, is detachably connected with the circuit breaker main body.
2. Low-voltage circuit breaker as claimed in claim 1, characterized in that it further comprises a rotating cover;
the rotating cover can be opened and closed to close an arc extinguish chamber on the breaker main body, and when the breaker main body is in short circuit, the rotating cover can be opened.
3. Low-voltage circuit breaker as claimed in claim 2, characterized in that the number of said rotary covers is 1;
the bottom end of the rotary cover is hinged with the end of the terminal cover facing the wiring end of the auxiliary wiring terminal, the top end of the rotary cover is hermetically connected with an arc extinguishing top cover at the top end of the breaker main body,
or
The bottom end of the rotating cover is hinged to the top end of the terminal cover, and the top end of the rotating cover can be opened and closed and is connected with the arc extinguishing top cover in a sealing mode.
4. Low voltage circuit breaker as claimed in claim 2, characterized in that the number of said rotating covers is 2;
1 the bottom of rotatory lid with the terminal lid faces to the end of auxiliary binding post's wiring end is articulated, another 1 the bottom of rotatory lid with arc extinguishing top cap on the circuit breaker main part top is articulated, and 2 the top of rotatory lid seals the lock joint.
5. The low-voltage circuit breaker according to claim 3 or 4, characterized in that at least one side wall of the terminal cover is provided with a limiting portion, and the limiting portion is used for being connected with the arc extinguishing top cover so as to expose the terminal of the auxiliary wiring terminal.
6. Low voltage circuit breaker as claimed in claim 2, characterized in that said rotary cover and said terminal cover are both transparent covers.
7. Low voltage circuit breaker as claimed in claim 1, characterized in that said terminal cover is removably connected to said breaker body by means of screws.
8. Low voltage circuit breaker as claimed in claim 1, characterized in that said terminal cover is provided with a routing groove for the limiting of the wires connected to said auxiliary terminals.
9. Low-voltage circuit breaker as claimed in claim 1, characterized in that it further comprises a sealing strip;
the sealing rubber strip is arranged at the bottom end of the terminal cover and used for sealing the terminal cover and the breaker main body.
10. Low voltage circuit breaker as claimed in any one of claims 1 to 4 or 6 to 9, characterized in that it further comprises a rubber collar;
the rubber clamping ring is installed at the wire outlet on the terminal cover in a sealing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121799221.1U CN215183578U (en) | 2021-08-03 | 2021-08-03 | Low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121799221.1U CN215183578U (en) | 2021-08-03 | 2021-08-03 | Low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215183578U true CN215183578U (en) | 2021-12-14 |
Family
ID=79405853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121799221.1U Active CN215183578U (en) | 2021-08-03 | 2021-08-03 | Low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215183578U (en) |
-
2021
- 2021-08-03 CN CN202121799221.1U patent/CN215183578U/en active Active
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