An anti-electric shock outdoor power distribution cabinet

By designing an insulating strip and torsion spring mechanism in the distribution cabinet, the wires are disconnected from the terminals and an insulating wrapping layer is installed at the exposed location, the problem of exposed wires being charged after the existing distribution cabinet is powered off, and safety performance is improved.

CN119542832BActive Publication Date: 2025-07-01SHANDONG QINGHUA YIKE ELECTRIC CO LTD

Patent Information

Application Number
CN202411678795.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-07-01
Estimated Expiration
2044-11-22

AI Technical Summary

Technical Problem

When existing distribution cabinets are powered off, the exposed wires may carry residual current, causing the risk of electric shock to the maintenance personnel.

Method used

An anti-electric shock outdoor distribution cabinet was designed. While the power was cut off by the power switch, the wire was disconnected from the terminal using the insulating strip and torsion spring mechanism, and an insulating wrapping layer was installed on the exposed area to ensure that the wire was completely insulated.

Benefits of technology

It effectively avoids the risk of electric shock caused by live conductors by live wires to maintain personnel, and reduces the current half-disconnection state caused by power-off switch failure, improving safety performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of distribution cabinets, and discloses an anti-electric shock outdoor distribution cabinet, including a distribution cabinet, in which a power-off switch is installed. The distribution cabinet further includes: a wiring groove opened on the power-off switch, and a wiring post is arranged in the wiring groove; an extension part fixed below the power-off switch and corresponding to the wiring groove, an insulating strip is installed on the extension part, a power connection fork is rotatably installed at the top of the insulating strip through a torsion spring, and the torsion spring applies a torsional force to the power connection fork to move it away from the wiring post, and a wire is threaded through the power connection fork and extends from its end, and an insulating wrapping layer is provided at the top of the insulating strip away from the wiring post. When the power-off switch cuts off the power, the present invention can not only disconnect the wire from the wiring post, but also insulate and wrap the exposed part of the wire, avoiding the risk of electric shock to the maintenance personnel during subsequent maintenance caused by the residual current that the exposed wire may carry, and reducing potential safety hazards.
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Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, in particular to an outdoor power distribution cabinet that is protected from electric shock. Background Art

[0002] Distribution cabinet is a general term for motor control center. Distribution cabinet is used in the occasions where the load is relatively dispersed and there are fewer circuits, as well as in the occasions where the load is concentrated and there are more circuits. They distribute the electric energy of a circuit of the upper-level distribution equipment to the nearest load. This level of equipment should provide protection, monitoring and control for the load.

[0003] At present, existing power distribution cabinets are equipped with power-off protectors inside them, so that when the current in the circuit is too large or the line is overloaded, the power can be cut off in time to protect the line;

[0004] For example, Chinese patent CN219123712U discloses a power distribution cabinet with an automatic power-off component. The power distribution cabinet adopts an automatic power-off component assembled with the inner wall of the power distribution cabinet to provide overload protection for the input voltage of the power distribution cabinet, and promptly shuts down the circuit of the electrical equipment in the power distribution cabinet to achieve the purpose of protecting the electrical equipment.

[0005] However, although the power-off component can cut off the power, when it is connected to the circuit, it is connected by wrapping the wire around the terminal. In general, the power is only cut off inside the power-off switch, and the exposed wires may still carry residual current. Without subsequent processing, the residual current in the wires may cause the risk of electric shock to the maintenance personnel who perform subsequent inspections. Summary of the invention

[0006] The object of the present invention is to provide an outdoor power distribution cabinet for preventing electric shock, so as to solve at least one technical problem existing in the above-mentioned prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: an outdoor power distribution cabinet for preventing electric shock, comprising a power distribution cabinet, a power-off switch installed in the power distribution cabinet, and further comprising:

[0008] A wiring slot is provided on the power-off switch, and a wiring post is provided in the wiring slot;

[0009] An extension portion fixed below the power-off switch and corresponding to the wiring slot, an insulating strip is installed on the extension portion, a power fork is rotatably installed on the top of the insulating strip through a torsion spring, and the torsion spring applies a torsional force away from the terminal to the power fork, and the wire is inserted into the power fork and extends from the end thereof, and an insulating wrapping layer is provided on the top of the insulating strip away from the terminal;

[0010] The crimping part is arranged in the wiring groove. The crimping part can rotate to press down the power connection fork so that the wire at its end is pressed against the wiring terminal to achieve electrical connection, and the torsion spring twists and accumulates elastic potential energy;

[0011] The locking part. When the power-off switch remains in the powered-on state, the locking part locks the pressed-down crimping part. When the power-off switch is turned off, the locking part releases the locking of the crimping part.

[0012] Preferably, an outer cylinder is fixed at the bottom of the wiring groove, and an inner cylinder is integrally formed at the center of the outer cylinder. The wiring terminal includes an outer sleeve and a conductive core that are sleeved inside and outside. The outer sleeve is installed on the inner wall of the inner cylinder. A gasket ring is fixed on the outer wall of the conductive core near the top, and a section of the conductive core above the gasket ring is set as a winding area. The bottom end of the conductive core is connected to the circuit through a connecting wire.

[0013] Preferably, the crimping part includes a crimping frame rotatably installed on the inner wall of the wiring groove. A hollow is formed in the middle of the crimping frame, and an outer cover shell is fixed at the hollow position. The outer diameter of the outer cover shell is smaller than the inner diameter of the outer cylinder. A notch through which the power connection fork can pass is formed on the outer wall of the outer cover shell. A pressing piece is integrally formed on the inner wall of the outer cover shell. A pressing wire ring is also installed on the inner wall of the pressing piece through a bracket. The inner diameter of the pressing wire ring is larger than the diameter of the conductive core, and the pressing wire ring can be sleeved on the conductive core.

[0014] Preferably, the locking part includes a sliding groove formed at the top of the extension part, and an electrically controlled slider that can slide is installed in the sliding groove. The electrically controlled slider is electrically connected to the power-off switch. Magnets are embedded in the contact surfaces of the crimping frame and the electrically controlled slider.

[0015] Preferably, two partition layers are provided near the top of the outer cover shell. The two partition layers divide the space above the inside of the outer cover shell into two sealed cavities, and a base glue and a curing agent are respectively filled in the two sealed cavities. When the two are mixed, an elastomer or a hardened solid can be formed. The top of the outer cover shell is set as an elastic arc surface layer, and a puncture needle is fixed on the inner wall.

[0016] Preferably, a spring is installed between the outer cover shell and the inner bottom of the outer cylinder, and a torsion spring is installed between the crimping frame and the inner wall of the wiring groove.

[0017] Preferably, a through sliding groove is formed in the side wall of the inner cylinder, and a sliding block is slidably installed in the sliding groove. The middle part of the sliding block is set as a hollow and inclined inclined part. The outer sleeve is slidably installed on the inner wall of the inner cylinder, and an embedding groove with the same direction as the inclined part is formed on the outer wall of the outer sleeve. The inclined part can slide in the embedding groove. Wedge blocks are fixed on the inner walls of both sides of the outer cover shell, and the inclined surfaces formed on the opposite surfaces of the two wedge blocks are in the same direction. Inclined surfaces adapted to the wedge blocks are also formed on the outer walls of both sides of the sliding block.

[0018] Preferably, a diversion ring is fixed above the wire pressing ring, and the top of the diversion ring is provided with an open conical opening.

[0019] Preferably, the opening part of the outer cylinder is provided with a flared part, and the outer cover can be rotated into or out of it.

[0020] Preferably, the end of the crimping frame is a plane, and when the crimping frame is in a tightened state, the adsorption surfaces between the two magnets embedded in the opposite surfaces of the crimping frame and the electric control slider are all in a horizontal state.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] First, when the power-off switch cuts off the power, the present invention can not only disconnect the wire from the terminal, but also insulate and wrap the exposed part of the wire, avoiding the risk that the exposed wire may carry residual current and cause electric shock to the maintenance personnel during subsequent maintenance. Moreover, disconnecting from the terminal can also prevent the power-off switch from malfunctioning and causing the current in the circuit to be in a semi-disconnected state, reducing potential safety hazards.

[0023] Second, the present invention can also be provided with a grounded power connection piece in the insulating wrapping layer. After the wire is inserted into the insulating wrapping layer, it will come into contact with the power connection piece, and the residual current can be released, further reducing the risk of electric shock and improving safety performance.

[0024] Third, through the rebound of the crimping frame, the puncture needle of the present invention pierces through the two separation layers, and during the process of driving the crimping frame to rebound, the elastic arc surface layer will reset, so that the two sealing cavities are connected and at the same time the outer cover is covered on the outer cylinder again, enabling the base glue and curing agent in the two sealing cavities to flow downward through the through holes punctured by the puncture needle to coat the lower conductive core and isolate it, thus achieving a protective effect. Moreover, the mixture of the two can form an insulating material to further insulate the conductive core and further reduce the risk of electric shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structural diagram of the power distribution cabinet of the present invention;

[0026] Figure 2 is the front view of the power distribution cabinet of the present invention;

[0027] Figure 3 is a partial three-dimensional view of the power-off switch wiring part of the present invention;

[0028] Figure 4 is a sectional view and a partial enlarged view of the terminal of the present invention;

[0029] Figure 5It is a side sectional view and a partial enlarged view of the terminal of the present invention;

[0030] Figure 6 It is a cutaway stereogram of the present invention after being connected to electricity;

[0031] Figure 7 is an enlarged stereoscopic view of the outer cover shell of the present invention;

[0032] Figure 8 It is an exploded perspective view of the outer ring tube and the terminal of the present invention;

[0033] Figure 9 is an enlarged stereoscopic view of the sliding block of the present invention;

[0034] Figure 10 It is a cross-sectional schematic diagram of the locking portion of the present invention.

[0035] In the figure: 1. distribution cabinet; 2. power off switch; 3. wiring slot; 4. extension part; 5. insulation strip; 6. insulation wrapping layer; 7. power fork; 8. wire; 9. outer ring cylinder; 10. inner ring cylinder; 11. outer wrapping tube; 12. conductive core; 13. gasket ring; 14. sliding block; 15. outer cover shell; 16. wedge block; 17. spring; 18. wire pressing ring; 19. crimping frame; 20. partition; 21. puncture needle; 22. guide ring; 23. pressing sheet; 24. slide groove; 25. inclined part; 26. electric control slider; 27. magnet. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 10 The present invention provides a technical solution: an outdoor power distribution cabinet for preventing electric shock, comprising a power distribution cabinet 1, a power-off switch 2 is installed in the power distribution cabinet 1, and further comprising:

[0038] A wiring slot 3 is provided on the power-off switch 2, and a wiring post is provided in the wiring slot 3;

[0039] An extension part 4 is fixed below the power-off switch 2 and corresponds to the wiring slot 3, an insulating strip 5 is installed on the extension part 4, a connection fork 7 is rotatably installed on the top of the insulating strip 5 through a torsion spring, and the torsion spring applies a torsional force away from the terminal to the connection fork 7, and the wire 8 is inserted into the connection fork 7 and extends from the end thereof, and an insulating wrapping layer 6 is provided on the top of the insulating strip 5 away from the terminal;

[0040] The crimping part is arranged in the wiring groove 3. The crimping part can rotate to press down the power connection fork 7 so that the wire 8 extending from its end is pressed against the terminal post to achieve electrical connection, and the torsion spring twists and accumulates elastic potential energy.

[0041] The locking part locks the pressed-down crimping part when the power-off switch 2 remains energized, and releases the locking of the crimping part when the power-off switch 2 is turned off.

[0042] When the anti-electric shock outdoor power distribution cabinet is in use, during wiring connection, the wire 8 needs to be threaded through the power connection fork 7 so that it extends from the end, and the insulating skin of the front-end wire 8 is peeled off so that it can be wound around the terminal post. Then, the power connection fork 7 is twisted to rotate it closer to the terminal post, and at the same time, the torsion spring accumulates elastic potential energy. When the power connection fork 7 is pressed to the position of the terminal post, the bare wire at the front end of the wire 8 is wound around the terminal post. Then, while using the crimping part to press the power connection fork 7, the bare wire wound around the terminal post is also crimped together, thus completing the connection process between the wire 8 and the terminal post. At the same time, the locking part also locks the crimping part, thereby ensuring that the crimping part and the power connection fork 7 always maintain the crimped state.

[0043] When the current in the circuit is too large or overloaded during the use of the power distribution cabinet, the power-off switch 2 will automatically cut off the power. The power-off switch 2 can use existing air switches or fuse switches, which will not be elaborated in detail in this case. When the power-off switch 2 cuts off the power to the circuit, the locking part will release the lock on the crimping part. Then, under the action of the torsion force of the power connection fork 7, the crimping part will bounce up, releasing the extrusion on the terminal post and the wire 8. At the same time, the power connection fork 7 will rotate away from the terminal post under the action of the torsion force until it hits the insulating wrapping layer 6, and under the action of the torsion force, the wire 8 and its bare wire are embedded in the insulating wrapping layer 6. In this way, the wire 8 can be disconnected from the terminal post, and at the same time, the exposed part of the wire 8 can be insulated and wrapped, avoiding the risk of electric shock to the maintenance personnel during subsequent maintenance caused by the residual current that the exposed wire may carry. Moreover, disconnecting from the terminal post can also prevent the power-off switch 2 from malfunctioning and causing the current in the circuit to be in a semi-disconnected state, reducing potential safety hazards.

[0044] More importantly, a grounded power connection piece can also be added in the insulating wrapping layer 6. After the wire 8 is inserted into the insulating wrapping layer 6, it will come into contact with it, and the residual current can be released, which can further reduce the risk of electric shock and improve the safety performance.

[0045] In one of the more preferred embodiments, an outer cylinder 9 is fixed to the bottom of the wiring groove 3, and an inner cylinder 10 is integrally formed at the center of the outer cylinder 9. The terminal includes an outer sleeve 11 and a conductive core 12 that are sleeved inside and outside. The outer sleeve 11 is installed on the inner wall of the inner cylinder 10. A gasket ring 13 is fixed to the outer wall of the conductive core 12 near the top, and a section of the conductive core 12 above the gasket ring 13 is set as a winding area. The bottom end of the conductive core 12 is connected to the circuit through a connecting wire.

[0046] The terminal can be seen in Figure 4 and Figure 8 , when the power connection fork 7 rotates to the position of the outer cylinder 9, the fork-shaped part at its end will be sleeved around the outer periphery of the outer sleeve 11, and then the peeled bare wire can be wound around the conductive core 12 above the gasket ring 13, and then the crimping part is pressed down to press the wire 8 tightly against the gasket ring 13 to ensure stable electrical connection.

[0047] In one of the more preferred embodiments, an implementation manner of the crimping part is provided;

[0048] The crimping part includes a crimping frame 19 rotatably installed on the inner wall of the wiring groove 3. A hollow is formed in the middle of the crimping frame 19, and an outer cover 15 is fixed at the hollow position. The outer diameter of the outer cover 15 is smaller than the inner diameter of the outer cylinder 9. A notch through which the power connection fork 7 can pass is formed in the outer wall of the outer cover 15. A pressing piece 23 is integrally formed on the inner wall of the outer cover 15, and a pressing ring 18 is installed on the inner wall of the pressing piece 23 through a bracket. The inner diameter of the pressing ring 18 is larger than the diameter of the conductive core 12, and the pressing ring 18 can be sleeved on the conductive core 12.

[0049] Specifically, it can be seen in Figure 4 , Figure 6 and Figure 7 , after the power connection fork 7 rotates and completes the winding of the wire 8, rotate the crimping frame 19 so that the outer cover 15 rotates into the outer cylinder 9, and use the pressing piece 23 to press the end of the power connection fork 7 tightly. At the same time, the pressing ring 18 in the outer cover 15 presses the wound wire 8 tightly to complete the power connection process;

[0050] At the same time, after the crimping frame 19 rotates to press the power connection fork 7, the locking part locks it.

[0051] In one of the more preferred embodiments, an implementation manner of the locking part is provided;

[0052] The locking part includes a chute opened at the top of the extension part 4, and an electrically controlled slider 26 that can slide is installed in the chute. The electrically controlled slider 26 is electrically connected to the power-off switch 2. Magnets 27 are embedded in the contact surfaces of the crimping frame 19 and the electrically controlled slider 26.

[0053] Specifically, it can be seen in Figure 6 andFigure 10 After the crimping frame 19 completes crimping, the magnet 27 embedded at its end will contact and attract the magnet 27 on the top of the electric control slider 26, completing the adsorption and fixation of the crimping frame 19;

[0054] When the power-off switch 2 is turned off, it will control the sliding of the electric control slider 26 through an electrical signal, so that the magnet 27 on it is staggered from the magnet 27 at the bottom of the crimping frame 19, thereby releasing the adsorption and fixation effect on the crimping frame 19, and further achieving the purpose of unlocking the crimping frame 19 to complete the subsequent process of the wire 8 detaching.

[0055] It is worth mentioning that in the locked state, the force required for the two magnets 27 to move away from each other is greater, so its locking effect is better. When unlocking, when the two magnets 27 are staggered, the like-named poles of the magnets 27 will approach each other, thus generating a repulsive effect. Therefore, the staggered method is easier to separate the two, which is more conducive to unlocking them.

[0056] In one relatively preferred embodiment, an implementation manner capable of wrapping and isolating the terminal is provided;

[0057] Two partition layers 20 are provided at a position close to the top of the outer housing 15, and the two partition layers 20 divide the space above the inside of the outer housing 15 into two sealed cavities, and a base glue and a curing agent are respectively filled in the two sealed cavities. When the two are mixed, they can form an elastomer or a hardened solid. The top of the outer housing 15 is provided with an elastic arc surface layer, and a puncture needle 21 is fixed on the inner wall.

[0058] Specifically, it can be seen from Figure 5 According to the previous content, after the crimping frame 19 is unlocked, when the power connection fork 7 rotates, it will drive the crimping frame 19 to rotate, similar to the form after a mousetrap is triggered. Then the crimping frame 19 will rotate under the action of the power connection fork 7, and the elastic arc surface layer at its top will impact the inner wall of the wiring groove 3 and deform, causing the puncture needle 21 to pierce through the two partition layers 20. And during the process of the elastic arc surface layer driving the crimping frame 19 to rebound, it will reset, making the two sealed cavities communicate while covering the outer cylindrical tube 9 with the outer housing 15 again, so that the base glue and the curing agent in the two sealed cavities flow downward through the through holes pierced by the puncture needle 21, and after the two flow and mix, they will form an elastomer or a solid formed after hardening, covering the lower conductive core 12 to isolate it, thereby achieving the protection effect;

[0059] And the deformation generated when the elastic arc surface layer is impacted will cause a certain extrusion of the internal space, which can help the base glue and the curing agent in the two sealed cavities to be extruded downward for mixing;

[0060] Among them, the base glue and the curing agent can be selected from silicone potting glue or epoxy resin AB glue. The mixtures of these two can both form insulating materials to insulate the conductive core 12, further reducing the risk of electric shock.

[0061] In this way, by insulating both the position of the terminal and the exposed part of the wire 8, the safety performance is further improved and the risk of electric shock is reduced.

[0062] In one relatively preferred embodiment, a spring 17 is installed between the inner bottom of the outer housing 15 and the outer cylinder 9, and a torsion spring is installed between the inner wall of the crimping frame 19 and the wiring groove 3.

[0063] The setting of the spring 17 can increase the acting force of the crimping frame 19 to rotate and bounce after unlocking, thereby increasing the impact force between the outer housing 15 and the inner wall of the wiring groove 3, further ensuring that the puncture needle 21 can pierce through the two partitions 20. Moreover, when the crimping frame 19 bounces up, the spring 17 will also pop out from the outer cylinder 9, so that the degree to which the crimping frame 19 covers the terminal after hitting and bouncing back can be deeper, improving the coating effect of the insulating material;

[0064] The setting of the torsion spring can apply a certain torsional force to ensure that the outer housing 15 can cover the terminal.

[0065] In one relatively preferred embodiment, an implementation method that can improve the pressing degree of the wire 8 is provided to ensure the stability of the electrical connection.

[0066] A through chute 24 is provided on the side wall of the inner cylinder 10, and a sliding block 14 is slidably installed in the chute 24. The middle part of the sliding block 14 is provided with a hollow and inclined inclined part 25. The outer sleeve 11 is slidably installed on the inner wall of the inner cylinder 10, and an embedding groove with the same direction as the inclined part 25 is provided on the outer wall of the outer sleeve 11. The inclined part 25 can slide in the embedding groove. Wedge blocks 16 are fixed on both inner walls of the outer housing 15, and the inclined surfaces provided on the opposite surfaces of the two wedge blocks 16 have the same direction. Inclined surfaces adapted to the wedge blocks 16 are also provided on both outer walls of the sliding block 14.

[0067] See Figure 4 and Figure 8 、 9When the outer housing 15 is pressed down and the electric fork 7 is pressed tightly through the pressing piece 23, the wedges 16 at the bottom on both sides thereof will contact the inclined surfaces on the outer walls of the sliding blocks 14, and while the outer housing 15 moves downward, they will push the sliding blocks 14 to move to one side. Due to the sliding fit between the inclined portion 25 and the embedding groove on the outer wall of the outer pipe 11, the outer pipe 11 will move upward, so that the internal conductive core 12 and the gasket ring 13 will move upward. In this way, the upward movement of the gasket ring 13 and the downward movement of the wire pressing ring 18 in the outer housing 15 can make the wire wound around the conductive core 12 be pressed more tightly, and the electrical connection is more stable.

[0068] In one relatively preferred embodiment, a diversion ring 22 is fixed above the wire pressing ring 18, and the top of the diversion ring 22 is provided as an open conical opening.

[0069] See Figure 5 Through the diversion ring 22, the base glue and curing agent flowing down can be focused and guided, so that they can flow down from the gap between the conductive core 12 and the wire pressing ring 18 and wrap around the conductive core 12 to form an insulating layer.

[0070] In one relatively preferred embodiment, the opening part of the outer cylinder 9 is provided as a flared part, and the outer housing 15 can be rotated into or out of it.

[0071] Since the outer housing 15 will have a certain deviation compared with moving straight up and down as the pressing frame 19 rotates, by providing the opening part of the outer cylinder 9 as a flared part, specifically, see Figure 8 This can avoid affecting the moving track of the outer housing 15 and avoid causing interference in its stroke.

[0072] In one relatively preferred embodiment, the end of the pressing frame 19 is provided as a plane, and when the pressing frame 19 is in the tightened state, the adsorption surfaces between the two magnets 27 embedded in the opposite surfaces of the pressing frame 19 and the electric control slider 26 are all in a horizontal state.

[0073] The standard parts used in this embodiment can be directly purchased from the market, and the non-standard structural components recorded according to the description and drawings can also be directly processed without doubt according to the existing technical knowledge. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology, so no specific description will be made here.

[0074] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor power distribution cabinet for preventing electric shock, comprising a power distribution cabinet (1), wherein a power cut-off switch (2) is installed in the power distribution cabinet (1), characterized in that: Also includes: A wiring slot (3) is provided on the power-off switch (2), and a wiring post is provided in the wiring slot (3); An extension part (4) is fixed below the power off switch (2) and corresponds to the wiring slot (3), an insulating strip (5) is mounted on the extension part (4), a power connection fork (7) is rotatably mounted on the top of the insulating strip (5) via a torsion spring, and the torsion spring applies a torsional force away from the terminal to the power connection fork (7), and an electric wire (8) is inserted into the power connection fork (7) and extends from the end thereof, and an insulating wrapping layer (6) is provided on the top of the insulating strip (5) away from the terminal; A crimping part is arranged in the wiring groove (3), and the crimping part can rotate to press the power connection fork (7) downward so that the wire (8) extending from the end thereof is pressed on the terminal post to achieve electrical connection, and the torsion spring is twisted and elastic potential energy is accumulated; A locking portion, which locks the pressed crimping portion when the power-off switch (2) remains in an energized state, and releases the locking of the crimping portion when the power-off switch (2) is disconnected; An outer ring tube (9) is fixed at the bottom of the wiring groove (3), and an inner ring tube (10) is integrally formed at the center of the outer ring tube (9), and the terminal comprises an outer tube (11) and a conductive core (12) which are arranged in an inner and outer manner, and the outer tube (11) is installed on the inner wall of the inner ring tube (10), and a gasket ring (13) is fixed on the outer wall of the conductive core (12) near the top, and a section of the conductive core (12) located above the gasket ring (13) is set as a winding area, and the bottom end of the conductive core (12) is connected to the circuit through a connecting wire; The crimping portion comprises a crimping frame (19) rotatably mounted on the inner wall of the wiring slot (3), the middle of the crimping frame (19) is provided with a hollow portion, and an outer cover shell (15) is fixed at the hollow portion, the outer diameter of the outer cover shell (15) is smaller than the inner diameter of the outer ring cylinder (9), the outer wall of the outer cover shell (15) is provided with a slot for allowing the connection fork (7) to pass through, the inner wall of the outer cover shell (15) is integrally formed with a pressing sheet (23), the inner wall of the pressing sheet (23) is also provided with a wire pressing ring (18) via a bracket, the inner diameter of the wire pressing ring (18) is larger than the diameter of the conductive core (12), and the wire pressing ring (18) can be sleeved on the conductive core (12).

2. The anti-electric shock outdoor power distribution cabinet according to claim 1 is characterized in that: The locking portion comprises a slide groove formed at the top of the extension portion (4), and a slidable electric control slider (26) is installed in the slide groove. The electric control slider (26) is connected to the power off switch (2) via an electrical signal. The contact surfaces of the crimping frame (19) and the electric control slider (26) are both embedded with magnets (27).

3. The anti-electric shock outdoor distribution cabinet according to claim 1 is characterized in that: The outer cover shell (15) is provided with two partitions (20) near the top, and the two partitions (20) divide the space above the inner part of the outer cover shell (15) into two sealed cavities, and the two sealed cavities are respectively filled with base glue and curing agent, which can form an elastomer or a hardened solid when mixed. The top of the outer cover shell (15) is set as an elastic arc surface layer, and a puncture needle (21) is fixed on the inner wall.

4. The outdoor power distribution cabinet for preventing electric shock according to claim 3 is characterized in that: A spring (17) is installed between the outer cover shell (15) and the inner bottom of the outer ring cylinder (9), and a torsion spring is installed between the crimping frame (19) and the inner wall of the wiring groove (3).

5. The anti-electric shock outdoor distribution cabinet according to claim 1 is characterized in that: The side wall of the inner ring tube (10) is provided with a through-going slide groove (24), and a sliding block (14) is slidably installed in the slide groove (24), and the middle part of the sliding block (14) is set as a hollow and inclined inclined portion (25), the outer tube (11) is slidably installed on the inner wall of the inner ring tube (10), and the outer wall of the outer tube (11) is provided with an embedding groove in the same direction as the inclined portion (25), and the inclined portion (25) can slide in the embedding groove, the inner walls on both sides of the outer cover shell (15) are fixed with wedge blocks (16), and the inclined surfaces on the opposite surfaces of the two wedge blocks (16) are in the same direction, and the outer walls on both sides of the sliding block (14) are also provided with inclined surfaces matching the wedge blocks (16).

6. The anti-electric shock outdoor distribution cabinet according to claim 3 is characterized by: A guide ring (22) is fixed above the wire pressing ring (18), and the top of the guide ring (22) is designed to be an open cone-shaped.

7. The outdoor power distribution cabinet for preventing electric shock according to claim 1 is characterized in that: The opening portion of the outer ring cylinder (9) is configured as a flared portion, and can allow the outer cover shell (15) to be rotated in or out.

8. The outdoor power distribution cabinet for preventing electric shock according to claim 2 is characterized in that: The end of the crimping frame (19) is set to be a plane, and when the crimping frame (19) is in a pressed state, the adsorption surfaces between the two magnets (27) embedded on the opposite surfaces of the crimping frame (19) and the electric control slider (26) are both in a horizontal state.

Citation Information

Patent Citations

  • Power distribution cabinet with automatic power-off assembly

    CN219123712U

  • Safety anti-electric shock power distribution cabinet

    CN211265978U

  • A shockproof distribution cabinet device with a protective cover

    CN215267083U

Cited By

  • Intelligent power distribution cabinet with anti-electric shock structure

    CN121367135A

  • Intelligent power distribution cabinet with electric shock prevention structure

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