CN216904253U - Prevent three-phase four-wire terminal box of maloperation - Google Patents
Prevent three-phase four-wire terminal box of maloperation Download PDFInfo
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- CN216904253U CN216904253U CN202122576068.2U CN202122576068U CN216904253U CN 216904253 U CN216904253 U CN 216904253U CN 202122576068 U CN202122576068 U CN 202122576068U CN 216904253 U CN216904253 U CN 216904253U
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- junction box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a three-phase four-wire junction box capable of preventing misoperation, which comprises a junction box, wherein the junction box comprises a box body and a junction box upper cover, the junction box upper cover is detachably connected with the box body, a plurality of wiring terminals are arranged on the box body, the wiring terminals are connected through a connecting sheet, the height of the connecting sheet is larger than that of the box body, and a plurality of through holes matched with the connecting sheet are formed in the junction box upper cover. The utility model provides a three-phase four-wire junction box capable of preventing misoperation, which realizes that the three-phase four-wire junction box has the function of preventing misoperation.
Description
Technical Field
The utility model relates to the technical field of junction boxes, in particular to a three-phase four-wire junction box capable of preventing misoperation.
Background
The three-phase four-wire is a wiring mode consisting of three live wires and one zero wire, the three-phase four-wire is connected with a star connection method and a triangle connection method, the star connection method is generally adopted, the three-phase symmetrical power supply is an alternating current power supply which can provide three electromotive forces or voltages with equal size, same frequency and 120 degrees of phase difference, a circuit powered by the three-phase power supply is called a three-phase circuit, and the junction box is a device for protecting and connecting electric wires.
The three-phase four-wire junction box in the prior art is generally connected with the electric energy meter by connecting the secondary lead, so that the operation is complex, the installation is inconvenient, and the installation is easy to be wrong, thereby causing wiring errors and potential safety hazards.
For example, a "three-phase four-wire junction box" disclosed in chinese patent literature, whose publication No. CN105891566A includes a voltage terminal plate and a current terminal plate, three voltage terminal plates and two current terminal plates being provided in the three-phase four-wire junction box, each voltage terminal plate being provided with a two-channel terminal block, each current terminal plate being provided with a four-channel terminal block, a voltage yoke plate being provided on each of the two-channel terminal blocks, and three adjustable current yoke plates being provided in the four-channel terminal block. The position of the adjustable current yoke plate is adjusted according to the use requirements, so that the electric energy meter and the terminal are respectively switched or simultaneously switched, and different use requirements are met. The three-phase four-wire junction box has the defects of complex operation, inconvenience in installation, easiness in installation error and incapability of preventing misoperation of the three-phase four-wire junction box.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that a three-phase four-wire junction box in the prior art is complex in operation, inconvenient to install and easy to install mistakenly, and provides a three-phase four-wire junction box capable of preventing misoperation, so that the three-phase four-wire junction box has the function of preventing misoperation.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a prevent three-phase four-wire terminal box of maloperation, includes the terminal box, the terminal box includes box body and terminal box upper cover, terminal box upper cover and box body releasable connection, be equipped with a plurality of terminals on the box body, the terminal passes through the connection piece and connects, the height that highly is greater than the box body of connection piece, cover on the terminal box and be equipped with a plurality of through-holes that are used for with the connection piece adaptation. Terminal box upper cover and box body releasable connection, be convenient for dismouting terminal box upper cover, be equipped with the bolt that is used for pressing from both sides tight connection piece on the terminal, the connection piece is higher than the box body, wear out from the through-hole of covering on the terminal box, when wanting to change the power-on and power-off state, take off the terminal box upper cover that corresponds the state earlier, unscrew the bolt, the pulling connection piece, the terminal electrical connection, make to open circuit, screw up the bolt again, install the terminal box upper cover that corresponds the change state, the terminal box upper cover of power-on state is different with the terminal box upper cover of power-off state, make three-phase four-wire terminal box have the function of preventing the maloperation.
Preferably, the connecting pieces include a first connecting piece for manual contact operation and a second connecting piece for connecting the terminal. The first connecting sheet is used for manual contact operation, the second connecting sheet is used for connecting the wiring terminal, and the first connecting sheet and the second connecting sheet are integrally formed.
Preferably, the terminals include a first terminal for controlling on/off of voltage and a second terminal for controlling on/off of current. The first binding post of vertical arrangement is used for controlling voltage break-make, and the second binding post of horizontal arrangement is used for controlling current break-make.
Preferably, the first connecting piece and the junction box upper cover are made of insulating materials, and the second connecting piece is made of conductive materials. First connection piece and terminal box upper cover are insulating material, electrocute when preventing manual operation, cause the potential safety hazard, and the second connection piece is conducting material, is convenient for connect the terminal.
Preferably, the junction box upper cover is provided with a buckle, the box body is provided with a buckle cap matched with the buckle, and the junction box upper cover is connected with the box body through the buckle and the buckle cap. The terminal box upper cover links to each other with the buckle cap through the buckle of adaptation and buckle the cap, and the buckle is connected for releasable connection with the buckle cap, the dismouting of the terminal box upper cover of being convenient for and box body.
Preferably, the buckle is provided with a vertical groove, the side wall of the buckle is provided with a convex block, the inner side wall of the buckle cap is provided with a clamping groove, and the convex block is matched with the clamping groove. The perpendicular groove that is equipped with on the buckle is elastic construction, when the buckle with detain the cap and be connected, a plurality of perpendicular grooves are whole to be the toper form, lug on the buckle lateral wall and the draw-in groove adaptation on detaining the inside wall of cap, the buckle of being convenient for and the dismantlement of detaining the cap.
Preferably, the inner side wall of the buckle cap is of a conical structure, the clamping groove is of a complete conical spiral structure, the convex blocks on the adjacent buckles and the extension lines thereof are connected into a complete spiral structure, and the convex blocks are located in the clamping grooves. The lug and the extension line thereof are connected into a complete spiral structure and are matched with the complete conical spiral structure of the clamping groove, so that the buckle can be clamped with the buckling cap, and the buckle can be doubly fixed by screwing after being clamped in.
Preferably, the junction box upper cover is provided with a convex strip, and the box body is provided with a sliding groove matched with the convex strip. When terminal box upper cover and box body equipment, align the spout on the sand grip of terminal box upper cover and the box body earlier, buckle and buckle the cap joint, the joint is through screwing up dual fixed after entering to the terminal box upper cover falls along the draw-in groove with sand grip slip entering, along the draw-in groove direction, during the draw-in groove will be packed into automatically to the sand grip, draw-in groove and sand grip mutually support, and play the positioning action.
Preferably, a gasket for preventing the through hole from being worn is arranged on the side wall of the through hole. The through hole is used for penetrating the connecting sheet, and the side wall of the through hole is provided with the gasket, so that the through hole is prevented from being abraded when the connecting sheet and the through hole are rubbed.
Preferably, the cross-sectional area of the upper end of the first connecting piece is smaller than that of the through-hole. The upper end of the first connecting sheet is made of elastic material, so that the first connecting sheet can conveniently penetrate through the through hole of the junction box upper cover.
The utility model has the following beneficial effects: (1) the anti-misoperation function is realized; (2) the detachable connection is convenient for disassembly and assembly; (3) the operation is simple, and the efficiency is high; (4) simple structure and convenient processing.
Drawings
The utility model is further illustrated with reference to the figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a first terminal according to the present invention;
FIG. 3 is a schematic structural view of a second terminal in the present invention;
FIG. 4 is a schematic view of the structure of the buckle of the present invention;
FIG. 5 is a schematic view of the construction of the locking cap of the present invention;
fig. 6 is a schematic structural view of the junction box upper cover of the present invention.
In the figure: terminal box 1, box body 2, terminal box upper cover 3, terminal 4, first terminal 4.1, second terminal 4.2, connection piece 5, first connection piece 5.1, second connection piece 5.2, through-hole 6, buckle 7, erect groove 7.1, lug 7.2, buckle cap 8, draw-in groove 8.1, sand grip 9, spout 10.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1 or fig. 6, the three-phase four-wire junction box capable of preventing misoperation comprises a junction box 1, wherein the junction box 1 comprises a box body 2 and a junction box upper cover 3, the junction box upper cover 3 is detachably connected with the box body 2, a plurality of binding posts 4 are arranged on the box body 2, the binding posts 4 are connected through connecting sheets 5, the height of the connecting sheets 5 is greater than that of the box body 2, and a plurality of through holes 6 matched with the connecting sheets 5 are arranged on the junction box upper cover 3; the binding post 4 comprises a first binding post 4.1 for controlling the on-off of voltage and a second binding post 4.2 for controlling the on-off of current; the junction box upper cover 3 is provided with a convex strip 9, and the box body 2 is provided with a sliding groove 10 matched with the convex strip 9.
In the technical scheme, the junction box upper cover 3 is detachably connected with the box body 2, the junction box upper cover 3 is convenient to disassemble and assemble, bolts used for clamping connecting sheets are arranged on the wiring terminals 4, the connecting sheets 5 are higher than the box body 2 and penetrate through holes 6 in the junction box upper cover 3, when the power-on and power-off states are required to be replaced, the junction box upper cover 3 in the corresponding state is taken down firstly, the bolts are unscrewed, the connecting sheets 5 are pulled, the wiring terminals 4 are electrically connected, the circuit is broken, then the bolts are screwed, the junction box upper cover 3 in the corresponding changed state is installed, the junction box upper cover 3 in the power-on state is different from the junction box upper cover 3 in the power-off state, and the three-phase four-wire junction box has the function of preventing misoperation; the vertically arranged first binding post 4.1 is used for controlling the on-off of voltage, and the horizontally arranged second binding post 4.2 is used for controlling the on-off of current; when terminal box upper cover 3 and 2 equipment of box body, align the spout on the sand grip of terminal box upper cover 3 and the box body 2 earlier, buckle 7 with detain cap 8 joint, the joint is through screwing up dual fixed after entering to terminal box upper cover 3 falls and slides into sand grip 9 along draw-in groove 8.1, along draw-in groove 8.1 direction, during draw-in groove 8.1 will be packed into automatically to sand grip 9, draw-in groove 8.1 mutually supports with sand grip 9, and play the positioning action.
The second embodiment is as follows:
as shown in fig. 2 or fig. 3, on the basis of embodiment 1, the connecting piece 5 comprises a first connecting piece 5.1 for manual contact operation and a second connecting piece 5.2 for connecting a binding post; the first connecting sheet 5.1 and the junction box upper cover 3 are made of insulating materials, and the second connecting sheet 5.2 is made of conducting materials; a gasket for preventing the through hole from being worn is arranged on the side wall of the through hole 6; the cross-sectional area of the upper end of the first connecting piece 5.1 is smaller than the cross-sectional area of the through hole 6.
In the above technical scheme, the first connecting sheet 5.1 is used for manual contact operation, the second connecting sheet 5.2 is used for connecting the wiring terminal 4, and the first connecting sheet 5.1 and the second connecting sheet 5.2 are integrally formed. First connection piece 5.1 and terminal box upper cover 3 are insulating material, electrocute during the manual operation of preventing, cause the potential safety hazard, and second connection piece 5.2 is conducting material, is convenient for connect terminal 4. The through hole 6 is used for penetrating the connecting sheet 5, and the side wall of the through hole 6 is provided with a gasket to prevent the connecting sheet 5 from rubbing the through hole 6 to cause abrasion of the through hole 6. The upper end of the first connecting sheet 5.1 is made of elastic material, so that the first connecting sheet 5.1 can pass through the through hole 6 of the junction box upper cover 3 conveniently.
The third concrete embodiment:
as shown in fig. 4 or fig. 5, on the basis of embodiment 2, a buckle 7 is arranged on the junction box upper cover 3, a buckle cap 8 adapted to the buckle 7 is arranged on the box body 2, and the junction box upper cover 3 is connected with the box body 2 through the buckle 7 and the buckle cap 8; a vertical groove 7.1 is arranged on the buckle 7, a convex block 7.2 is arranged on the side wall of the buckle 7, a clamping groove 8.1 is arranged on the inner side wall of the buckle cap 8, and the convex block 7.2 is matched with the clamping groove 8.1; the inner side wall of the buckle cap 8 is of a conical structure, the clamping groove 8.1 is of a complete conical spiral structure, the convex blocks 7.2 on the adjacent buckles 7 and the extension lines thereof are connected into a complete spiral structure, and the convex blocks 7.2 are located in the clamping grooves 8.1.
In the technical scheme, the junction box upper cover 3 is connected with the box body 2 through the adaptive buckle 7 and the buckle cap 8, and the buckle 7 and the buckle cap 8 are detachably connected, so that the junction box upper cover 3 and the box body 2 can be conveniently disassembled; perpendicular groove 7.1 that is equipped with on buckle 7 is elastic structure, when buckle 7 with detain cap 8 and be connected, a plurality of perpendicular grooves 7.1 wholly are the toper form, lug 7.2 on the 7 lateral walls of buckle and the draw-in groove 8.1 adaptation on the inside wall of detaining cap 8, be convenient for buckle 7 with detain cap 8's dismantlement, lug 7.2 and extension cord connect into a complete helical structure and with draw-in groove 8.1's complete toper helical structure adaptation, thereby buckle 7 can with detain cap 8 joint, the joint can also be through screwing up dual fixed after entering.
The utility model has the following beneficial effects: the utility model has the following beneficial effects: (1) the anti-misoperation function is realized; (2) the detachable connection is convenient for disassembly and assembly; (3) the operation is simple, and the efficiency is high; (4) simple structure and convenient processing.
Claims (10)
1. The utility model provides a prevent three-phase four-wire terminal box of maloperation, includes terminal box (1), its characterized in that: junction box (1) includes box body (2) and junction box upper cover (3), junction box upper cover (3) and box body (2) releasable connection, be equipped with a plurality of terminals (4) on box body (2), terminal (4) are connected through connection piece (5), the height that highly is greater than box body (2) of connection piece (5), be equipped with a plurality of through-holes (6) that are used for with connection piece (5) adaptation on junction box upper cover (3).
2. The three-phase four-wire junction box of claim 1, wherein: the connecting piece (5) comprises a first connecting piece (5.1) used for manual contact operation and a second connecting piece (5.2) used for connecting a binding post.
3. The three-phase four-wire junction box of claim 1, wherein: the binding post (4) comprises a first binding post (4.1) used for controlling voltage on-off and a second binding post (4.2) used for controlling current on-off.
4. The three-phase four-wire junction box of claim 2, wherein: the first connecting sheet (5.1) and the junction box upper cover (3) are made of insulating materials, and the second connecting sheet (5.2) is made of conductive materials.
5. The three-phase four-wire junction box of claim 1, wherein: the junction box is characterized in that the junction box upper cover (3) is provided with a buckle (7), the box body (2) is provided with a buckle cap (8) matched with the buckle (7), and the junction box upper cover (3) is connected with the box body (2) through the buckle (7) and the buckle cap (8).
6. The anti-misoperation three-phase four-wire junction box according to claim 5, wherein: be equipped with on buckle (7) and erect groove (7.1), be equipped with lug (7.2) on the lateral wall of buckle (7), be equipped with draw-in groove (8.1) on the inside wall of knot cap (8), lug (7.2) and draw-in groove (8.1) adaptation.
7. An anti-misoperation three-phase four-wire junction box according to claim 5 or 6, wherein: the inner side wall of the buckle cap (8) is of a conical structure, the clamping groove (8.1) is of a complete conical spiral structure, the convex blocks (7.2) on the adjacent buckles (7) and the extension lines thereof are connected into a complete spiral structure, and the convex blocks (7.2) are positioned in the clamping groove (8.1).
8. The three-phase four-wire junction box of claim 1, wherein: the junction box is characterized in that the junction box upper cover (3) is provided with a convex strip (9), and the box body (2) is provided with a sliding groove (10) matched with the convex strip (9).
9. The three-phase four-wire junction box of claim 1, wherein: and a gasket for preventing the through hole from being abraded is arranged on the side wall of the through hole (6).
10. An anti-misoperation three-phase four-wire junction box according to claim 2 or 4, wherein: the cross-sectional area of the upper end of the first connecting piece (5.1) is smaller than that of the through hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576068.2U CN216904253U (en) | 2021-10-25 | 2021-10-25 | Prevent three-phase four-wire terminal box of maloperation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576068.2U CN216904253U (en) | 2021-10-25 | 2021-10-25 | Prevent three-phase four-wire terminal box of maloperation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216904253U true CN216904253U (en) | 2022-07-05 |
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ID=82195173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122576068.2U Active CN216904253U (en) | 2021-10-25 | 2021-10-25 | Prevent three-phase four-wire terminal box of maloperation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216904253U (en) |
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2021
- 2021-10-25 CN CN202122576068.2U patent/CN216904253U/en active Active
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