CN222422904U - A low-voltage distribution box with live replaceable miniature circuit breakers - Google Patents
A low-voltage distribution box with live replaceable miniature circuit breakers Download PDFInfo
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- CN222422904U CN222422904U CN202420248854.0U CN202420248854U CN222422904U CN 222422904 U CN222422904 U CN 222422904U CN 202420248854 U CN202420248854 U CN 202420248854U CN 222422904 U CN222422904 U CN 222422904U
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- circuit breaker
- miniature circuit
- box body
- voltage distribution
- distribution box
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- 238000009826 distribution Methods 0.000 title claims abstract description 23
- 210000004907 gland Anatomy 0.000 claims 1
- 239000002184 metal Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The application relates to a low-voltage distribution box with a miniature circuit breaker capable of being replaced in an electrified way, which comprises a box body, wherein the box body is provided with a plurality of gram heads for wiring, a plurality of circuit breaker bases are arranged in the box body, and the circuit breaker bases are detachably connected with the circuit breaker; the modularized base is specially matched with the miniature circuit breaker to be used, when a user needs to replace a burnt-out switch or needs to replace a switch with a large current or needs to replace a switch with a small current, the miniature circuit breaker with the modularized base has the advantages that the miniature circuit breaker with the modularized base does not need to be changed or removed, the miniature circuit breaker and the whole base are not required to be replaced, the miniature circuit breaker can be continuously used by only pulling the miniature circuit breaker out of the base and inserting a new miniature circuit breaker into the base, and the miniature circuit breaker is not required to be replaced by power failure, live disconnecting and the like.
Description
Technical Field
The utility model relates to the field of low-voltage distribution boxes, in particular to a low-voltage distribution box with a miniature circuit breaker capable of being replaced in an electrified mode.
Background
The current production and use of a large number of household appliances bring new experience in life to people, the electricity consumption of each household is greatly increased, the situation that the prior household switch has insufficient capacity and overload trip and burn out is always caused, so that the switch with larger rated current or the burn out switch is required to be replaced, the miniature circuit breaker in the distribution box is used by general users for fixing and wiring, the replacement switch is required to disconnect the main incoming line switch, then the switch wire required to be replaced is removed, the wire is connected with the corresponding new replacement switch in an original mode, the operations of the columns are required to be constructed by special electricians, the electricians are required to be careful in the wire removing process, the contact with the live incoming line end of the main incoming line switch is avoided, and the prior wiring is also required to be restored. Because the distribution box has narrow space and more wires, the total incoming wires are electrified, maintenance operators are easy to get an electric shock or connect wrong cables, the maintenance is not convenient, the safety is not guaranteed, even safety accidents occur, and no estimated casualties and property loss are directly caused.
Disclosure of utility model
In order to solve the problems, the technical scheme provides a low-voltage distribution box with a miniature circuit breaker capable of being replaced in an electrified mode.
In order to achieve the above purpose, the technical scheme is as follows:
The utility model provides a take low voltage distribution box of removable miniature circuit breaker that charges, includes the box, the box is equipped with a plurality of gram heads that are used for the wiring, be equipped with a plurality of circuit breaker bases in the box, circuit breaker base can dismantle and be connected with the circuit breaker.
In some embodiments, the open side of the circuit breaker base is symmetrically provided with an elastic buckle, the circuit breaker is provided with a clamping step matched with the elastic buckle, and the circuit breaker is further provided with a terminal.
In some embodiments, the front side of the case is provided with a transparent plate provided with a handle.
In some embodiments, the housing is provided with a plurality of mounting holes.
In some embodiments, the case further includes a circuit portion comprising:
an input end provided with a circuit breaking element QF;
The breaking element QF is provided with a plurality of branches and corresponding breaking elements and is connected with corresponding loads.
In some embodiments, the input end is further provided with a plurality of indicator lamps through a fuse.
The application has the beneficial effects that:
The miniature circuit breaker is specially fixedly installed, the base of the miniature circuit breaker is additionally arranged, the modularized base is specially matched with the miniature circuit breaker for use, when a user needs to replace a burnt-out switch or needs to replace a switch with a large current or a switch with a small current, the miniature circuit breaker with the modularized base has the advantages that any wiring is not required to be changed and removed, the miniature circuit breaker and the base are not required to be replaced entirely, the miniature circuit breaker can be continuously used only by pulling the miniature circuit breaker out of the base, and a new miniature circuit breaker is inserted into the base without power failure or live disconnecting and the like to replace the miniature circuit breaker.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a circuit breaker action of an embodiment of the utility model;
Fig. 3 is a schematic circuit part structure of an embodiment of the present utility model.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1-3, a low voltage distribution box with a miniature circuit breaker capable of being replaced in an electrified manner comprises a box body 1, wherein the box body 1 is provided with a plurality of gram heads 2 used for wiring, a plurality of circuit breaker bases 3 are arranged in the box body 1, and the circuit breaker bases 3 are detachably connected with a circuit breaker 4.
In this embodiment, the opening side of the circuit breaker base 3 is symmetrically provided with an elastic buckle 5, the circuit breaker 4 is provided with a clamping step 10 matched with the elastic buckle 5, and the circuit breaker 4 is further provided with a terminal 6.
In this embodiment, a transparent plate 7 is provided on the front side of the case 1, and a handle 8 is provided on the transparent plate 7.
In this embodiment, the case 1 is provided with a plurality of mounting holes 9.
In this embodiment, the case 1 further includes a circuit portion including:
an input end provided with a circuit breaking element QF;
The breaking element QF is provided with a plurality of branches and corresponding breaking elements and is connected with corresponding loads.
In this embodiment, the input end is further provided with a plurality of indicator lamps through a fuse.
The technical scheme is as follows:
mainly comprises two aspects, namely a structural aspect and an electrical aspect;
the low-voltage distribution box with the live-line replaceable miniature circuit breaker is formed by adopting a steel plate bending and welding process to manufacture a wall-mounted metal box body with the length of 500-200-500 mm, arranging corresponding primary components such as the miniature circuit breaker, a miniature circuit breaker base, a surge protector SPD (FS), a primary wiring terminal (JX), a zero ground row and the like in the box body according to a planar layout of the box body, and correspondingly arranging the primary wiring of the components and the wiring of an indicator lamp in the corresponding position in the box body.
An inner door plate for preventing maintenance personnel from touching the electric wires in the box body by mistake is arranged in the box body; the inner door plate of the box body is provided with a hole for exposing the operating handle of the miniature circuit breaker; after the inner door is closed, the distribution box only exposes a handle which is convenient for a user to operate the switch, so that an operator can be prevented from entering a charged gap by mistake, and the operation safety is improved; the movable hinge is arranged on the right side of the inner door, the left side of the inner door is fixed by adopting 2M 6 loose screws, and the screws have the advantages that the screws and the nuts cannot fall down even if the screws and the nuts are loosened, so that convenience of door opening and maintenance is guaranteed to the greatest extent;
The electric aspect is that the whole metal box body is internally connected with a primary power cable according to the maximum rated current of the miniature circuit breaker, namely, a base of the miniature circuit breaker is connected by a 16 square mm wire according to a primary system diagram, the current carrying capacity of the 16 square mm wire is 80A, so that a switch with the rated current less than or equal to 80A is applicable, larger wires need to be replaced when the rated current exceeds that of the miniature circuit breaker, but the rated current of the miniature circuit breaker is generally not more than 63A, the distribution box incoming line miniature circuit breaker QF and the feeder miniature circuit breaker QF 1-12 of the scheme are provided with bases, the miniature circuit breaker bases are U-shaped plastic parts which can just wrap the miniature circuit breaker, conductive metal components which are in fit connection with metal terminals on the miniature circuit breaker are arranged at the two ends of the U-shaped plastic parts, the circuit breaker and the U-shaped base are electrically connected through the metal terminals, the miniature circuit breaker with the movable spring buckles at the two ends of the U-shaped plastic parts are inserted into the base, the miniature circuit breaker with the metal terminals can be locked and can be unlocked and can be electrified when the miniature circuit breaker is fixed in the base, the miniature circuit breaker can be normally operated when the miniature circuit breaker is required to be replaced, and the miniature circuit breaker is newly installed on the base according to the steps. The base outgoing line of the feeder miniature circuit breaker is connected to the primary terminal, and a user can directly connect a wire to the corresponding terminal, the zero row and the ground row by taking electricity; holes are formed in the zero row and the ground row, press riveting nuts are arranged in the holes, and a user only needs to use a screwdriver to screw the screw to align the nuts to the wire lugs, and a spanner is not needed to fix the nuts;
The surge protector SPD (FS) and the protection breaker QFS thereof are connected in series and then connected to the outlet side of the inlet switch, so that the surge protector SPD (FS) and the protection breaker QFS are mainly used for preventing lightning impact and inducing high voltage to generate insulation breakdown to loads to cause component failure and damage, and the secondary circuit component of the distribution box is that a signal lamp (HY, HG and HR) is connected to the inlet side of the inlet switch, so that the operation or maintenance personnel can conveniently see the electrified condition of each phase of ABC phase of the inlet cable of the box under the condition that the box is closed, and the operation personnel can conveniently and rapidly judge and maintain faults.
The technical effect of the scheme is that
The miniature circuit breaker in the distribution box adopts a matched pluggable base, if a user wants to replace miniature circuit breakers with different currents or burning losses, the user only needs to install a metal terminal on the new miniature circuit breaker and then replace the miniature circuit breaker with the miniature circuit breaker in the base, and the process does not need to disconnect the main switch, power failure and disconnection and wiring, so that the bad situation that the traditional miniature circuit breaker which is fixedly installed is easy to get an electric shock or connect a wrong cable when a maintainer is replacing is furthest changed, and a safety accident is caused;
The base is a U-shaped plastic part, no electrified conductor is exposed, and the miniature circuit breaker can be wrapped;
The primary wires in the distribution box are connected to the primary wiring terminals by wires which can meet the rated current of the maximum miniature circuit breaker, and zero rows and ground rows of press riveting nuts are adopted, so that the external wiring of the distribution box is safer, faster and simpler for users.
The foregoing description of the preferred embodiments of the present application is not intended to limit the scope of the application, but rather is presented in the claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420248854.0U CN222422904U (en) | 2024-01-31 | 2024-01-31 | A low-voltage distribution box with live replaceable miniature circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420248854.0U CN222422904U (en) | 2024-01-31 | 2024-01-31 | A low-voltage distribution box with live replaceable miniature circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222422904U true CN222422904U (en) | 2025-01-28 |
Family
ID=94365220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420248854.0U Active CN222422904U (en) | 2024-01-31 | 2024-01-31 | A low-voltage distribution box with live replaceable miniature circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222422904U (en) |
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2024
- 2024-01-31 CN CN202420248854.0U patent/CN222422904U/en active Active
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