Power distribution cabinet with outdoor protection structure and use method thereof

Abstract

The invention discloses a power distribution cabinet with an outdoor protection structure and a use method thereof, and relates to the technical field of power distribution cabinets, the power distribution cabinet comprises a cabinet body, a main cable composed of a plurality of branch cables, a circuit breaker, and a connection module used for connecting the circuit breaker with the main cable and the branch cables; the connecting module is composed of a branch support, a plurality of protection assemblies and a clamping assembly, and each protection assembly is installed on the branch support. The connecting structure has the advantages that high-strength connection is achieved, pulling force on the main cable can be dissipated when the main cable is pulled, displacement buffering to a certain degree can be provided, the pulling force transmitted to the circuit breaker can be reduced, the circuit breaker is protected, and in addition, when the main cable is subjected to large pulling force, the main cable can be prevented from being damaged. And the branch cable and the circuit breaker are disconnected, and the electrical core in the branch cable is wrapped, so that the power distribution cabinet can be effectively prevented from toppling, and the potential safety hazard of electric leakage caused by exposure of the electrical core can also be prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a power distribution cabinet with an outdoor protection structure and a use method thereof. Background Art

[0002] A distribution cabinet is usually composed of a cabinet body, electrical components, a busbar system, a secondary circuit and other parts. These parts work together to achieve power management. A circuit breaker is installed inside the distribution cabinet and connected to the external main cable to control the circuit on and off.

[0003] The existing construction distribution cabinet is placed outdoors, and the main cables pass through the wire holes on the side or bottom of the distribution cabinet, which poses certain safety hazards. For example, the publication number CN111129976B discloses an improved distribution cabinet with safety protection function. It mentions that some existing distribution cabinets are installed outdoors. In order to facilitate maintenance and other operations of the staff, the distribution cabinets installed outdoors are generally not equipped with switch locks. In this regard, some young children often accidentally open the distribution cabinet door during their daily play, which brings safety hazards. The improved distribution cabinet with functions includes a base, a cabinet body and a top cover; the cabinet body includes four equal-height columns arranged in a rectangle, and two side panels, a back panel and a door panel fixed on the outer periphery of the rectangle formed by the four columns; wherein the door panel is provided with a rectangular opening and a switch door is hinged at the rectangular opening; the side panels, back panel and door panel are respectively connected to the columns through multiple connecting rod structures; the connecting rod structure includes a hinge seat, two rotating shafts are provided on the hinge seat, and a gear is respectively installed on the two rotating shafts, and the peripheral side of the gear is provided with teeth; the two gears are meshed with each other.

[0004] The above-mentioned distribution cabinet controls the opening and closing of the door and the side panels, back panels and door panels through the setting of the first switch mechanism and the second switch mechanism, thereby enhancing the protection function of the distribution cabinet and avoiding safety hazards caused by children playing and opening the door.

[0005] However, the above-mentioned distribution cabinets and existing distribution cabinets are placed outdoors. In case of accidents, the construction mobile equipment (engineering vehicles) will cause the main cables to move, thereby pulling the distribution cabinet to move, causing the distribution cabinet to topple over, affecting the use of electrical components inside the distribution cabinet. In addition, there is also the possibility of strong pulling force causing damage to the circuit breaker. The broken main cable is exposed, which will generate an arc nearby, posing a great safety hazard and low safety protection performance.

[0006] Therefore, a new type of distribution cabinet with an outdoor protection structure can be used to solve the shortcomings of the existing technology. Summary of the Invention

[0007] The purpose of the present invention is to solve the problem in the prior art that the rigid connection between the distribution cabinet and the main cable increases the safety hazard, and to propose a distribution cabinet with an outdoor protection structure and a method for using the same.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: A power distribution cabinet with an outdoor protection structure, comprising a cabinet body, a main cable consisting of multiple branch cables, and a circuit breaker, and also comprising a connection module for connecting the circuit breaker with the main cable and the branch cables; The connection module consists of a sub-bracket, multiple protective components and a clamping component. Each protective component is installed on the sub-bracket. Each protective component consists of a sleeve mechanism and two force relief mechanisms. The clamping component is installed on the sub-bracket to clamp and fix the main cable to maintain the stability of the main cable. The socket mechanism is used to connect the branch cable and the circuit breaker, and the force relief mechanism is used to transmit the tension generated on the main cable and disconnect the branch cable from the circuit breaker when the tension reaches its limit.

[0009] Preferably, the clamping assembly includes two swing arms rotatably mounted on the sub-bracket, a clamping plate that cooperates with the main cable is rotatably mounted on each of the two swing arms, and a fastening mechanism is installed between the two swing arms.

[0010] Preferably, the fastening mechanism includes two sliding plates respectively slidably mounted on corresponding swing arms, and a rotating block is rotatably mounted on each of the sliding plates through a rotating shaft, a screw rod is rotatably mounted on one of the rotating blocks, and a nut rotatably connected to the screw rod thread is fixedly mounted on the other rotating block, and a circular hole for the screw rod to pass through is opened on the rotating block.

[0011] Preferably, the socket mechanism includes a conductive voltage plate on the circuit breaker, a conductive connecting plate is fixedly mounted on the conductive voltage plate, a first connecting sleeve is fixedly mounted on the conductive connecting plate, a conductive rod that matches the branch cable is fixedly mounted in the first connecting sleeve, a locking sleeve is threadedly mounted on the first connecting sleeve, two spherical plates are rotatably mounted on the locking sleeve, a lock handle is fixedly mounted on each of the two spherical plates, and a first spring coil is mounted between the spherical plate and the locking sleeve; The locking sleeve is clamped with a second connecting sleeve through two spherical plates, the second connecting sleeve is threadedly mounted with a third connecting sleeve, the third connecting sleeve is fixedly mounted with a threaded sleeve, the threaded sleeve is threadedly mounted with a screw, the screw passes through the third connecting sleeve, the screw is rotatably mounted with a first clamping plate, the third connecting sleeve is fixedly mounted with a second clamping plate, the first clamping plate cooperates with the second clamping plate to fix the branch cable, and the locking sleeve is equipped with two locking structures that cooperate with corresponding lock handles.

[0012] Preferably, the locking structure includes an elastic telescopic rod rotatably mounted on the locking sleeve and cooperating with the lock handle, a second spring coil is fixedly mounted between the elastic telescopic rod and the locking sleeve, a wedge is slidably mounted on the locking sleeve, a magnetic column is fixedly mounted on the wedge and the telescopic end of the elastic telescopic rod, the two magnetic columns have opposite magnetic properties, a pressure plate is slidably mounted on the locking sleeve, and a pressure wheel cooperating with the wedge is rotatably mounted on the pressure plate.

[0013] Preferably, the force relief mechanism includes a spiral rod rotatably mounted on the sub-bracket, a second reset ring is fixedly mounted on the second connecting sleeve, a spiral sleeve is fixedly mounted inside the second reset ring, a plurality of spring rods are fixedly mounted on the second reset ring, a first reset ring is fixedly mounted on one end of the plurality of spring rods away from the second reset ring, a third spring coil is fixedly mounted between the first reset ring and the spiral rod, a pressure structure that cooperates with the pressure plate is mounted on the spiral rod and the second connecting sleeve, and a working structure is mounted at the bottom of the spiral rod.

[0014] Preferably, the pressure structure includes a fixed ring fixedly mounted on the second connecting sleeve, a disc fixedly mounted on the top of the spiral rod, a rotating ring rotatably mounted on the disc, two spring sheets matching the pressure plate are installed between the rotating ring and the fixed ring, the two spring sheets are rotatably connected to the rotating ring and the fixed ring, and two limiting rods matching the rotating ring are fixedly mounted on the fixed ring.

[0015] Preferably, the working structure includes a sleeve fixedly mounted on the bottom of the spiral rod, a plurality of centrifugal plates are rotatably mounted on the sleeve, and a fourth spring coil is fixedly mounted between each centrifugal plate and the sleeve.

[0016] Preferably, the exposed portion of the branch cable core is located inside the third connecting sleeve, and the third connecting sleeve is made of insulating PVC material.

[0017] The present invention also provides a protection method for a power distribution cabinet with an outdoor protection structure, comprising the above-mentioned power distribution cabinet with an outdoor protection structure, and further comprising the following steps: S1. First, peel off the main cable to expose the branch cables inside. Then peel off the branch cables to expose the cores. Pass the branch cables through the sub-brackets and connect them to the socket mechanism. Connect the socket mechanism to the circuit breaker and use the clamping assembly to clamp and secure the main cable. S2. When the main cable is subjected to external tension and the tension strength is within the tolerance range, the cabinet will not be pulled down. The action of the main cable in the clamping assembly will transmit the tension to the sub-bracket on the upper part of the clamping assembly, causing the sub-bracket to move downward; When the branch bracket moves downward, the pulling force is transmitted to the relief mechanism to relieve the pulling force, thereby elastically compensating for the movement of the branch bracket, thereby protecting the branch cable and preventing the branch cable from separating from the circuit breaker. S3. Once the main cable is subjected to a large degree of external tension, the tension on the branch bracket is large, and the tension on the relief mechanism is large, which will cause the socket mechanism to separate. The separated branch cable is wrapped by the components in the socket mechanism to prevent the cabinet from tipping over. At the same time, it can also protect the circuit breaker. In addition, the battery core in the branch cable will not be exposed, which plays a role in preventing leakage.

[0018] Compared with the existing technology, the advantages of the present invention are: 1. When the circuit breaker is connected to the main cable, this distribution cabinet clamps the main cable by setting a clamping assembly. At the same time, the branch bracket is connected to the socket mechanism. This makes the branch cable completely stress-free and maintains the stability of the branch cable. Only the main cable bears the tension, which has a greater degree of stress and higher firmness.

[0019] 2. When the circuit breaker of this distribution cabinet is connected to the main cable, the sub-bracket is driven to move by the main cable. The movement of the sub-bracket drives the spiral rod to rotate, thereby driving the centrifugal piece to rotate and perform centrifugal work. At the same time, it also drives the third spring coil to generate elastic internal energy, thereby consuming energy of the sub-bracket, reducing the stroke of the sub-bracket, playing a buffering role, and can effectively resist external vibration and slight tension.

[0020] 3. When the circuit breaker of this distribution cabinet is connected to the main cable, the movement of the spiral rod drives the spring sheet to deform and generate elastic force, which not only has a buffering effect, but also cooperates with the use of the pressure wheel and the wedge block to open the locking structure, so that the lock handle loses the locking effect. As the pulling force increases, the second connecting sleeve and the locking sleeve will separate, which can protect the circuit breaker, suddenly interrupt the force on the circuit breaker, and also prevent the cabinet from tipping over.

[0021] 4. When the circuit breaker of this distribution cabinet is connected to the main cable, a conductive rod is provided to connect the conductive connecting piece and the battery cell in the branch cable. After the second connecting sleeve is separated from the locking sleeve, the battery cell is kept in the third connecting sleeve. The third connecting sleeve is made of insulating PVC material, which will not cause leakage and has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a structural diagram of a power distribution cabinet with an outdoor protection structure proposed by the present invention; Figure 2 for Figure 1 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 3 for Figure 1 Detailed schematic diagram of the structure inside the cabinet; Figure 4 for Figure 13 Enlarged schematic details of the circuit breaker, main cable and connection module; Figure 5 for Figure 4 A detailed diagram of the enlarged structure after a section of the main cable is cut off and rotated at a certain angle; Figure 6 for Figure 5 Detailed schematic diagram of the enlarged structure of the connecting module and the main cable; Figure 7 for Figure 6 Detailed structural diagram of the center branch bracket, main cable, branch cable, and clamping assembly; Figure 8 for Figure 7 Detailed schematic diagram of the structure after removing the main cable and branch cables and rotating them at a certain angle; Figure 9 for Figure 8 Enlarged structural diagram of the middle sliding plate and screw rod; Figure 10 for Figure 6 Detailed schematic diagram of the enlarged structure of the middle protection component and branch cables; Figure 11 for Figure 10 Detailed schematic diagram of the exploded structure of the middle socket mechanism; Figure 12 for Figure 11 A detailed structural diagram of the second connecting sleeve and the third connecting sleeve after they are combined and the third connecting sleeve is cut open; Figure 13 for Figure 10 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 14 for Figure 13 A detailed schematic diagram of the enlarged structure of the middle pressure relief mechanism, the second connecting sleeve, and the third connecting sleeve; Figure 15 for Figure 13 An enlarged schematic diagram of the locking sleeve and the locking structure; Figure 16 for Figure 15 Detailed schematic cross-sectional view of the structure; Figure 17 for Figure 14 A detailed schematic diagram of the enlarged structure of the center release mechanism; Figure 18 A detailed structural diagram of the spherical plate before locking the second connecting sleeve; Figure 19A detailed structural diagram showing the state in which the spherical plate locks the second connecting sleeve; Figure 20 for Figure 16 A schematic diagram of the enlarged structure of the elastic telescopic rod and the wedge; Figure 21 for Figure 20 Detailed diagram of the enlarged structure of part A.

[0023] In the figure: 1 cabinet, 2 circuit breaker, 3 radiator, 4 main cable, 5 connection module, 6 protection component, 7 branch bracket, 8 nut, 9 conductive voltage plate, 10 branch cable, 11 swing arm, 12 sliding plate, 13 screw rod, 14 clamping plate, 15 rotating block, 16 rotating shaft, 17 conductive connecting plate, 18 socket mechanism, 19 screw rod, 20 first connecting sleeve, 21 locking sleeve, 22 second connecting sleeve, 23 third connecting sleeve, 24 first clamping plate, 25 centrifugal plate, 26 first reset ring, 27 second reset ring, 28 elastic telescopic rod, 29 pressure plate, 30 wedge block, 31 pressure wheel, 32 spring plate, 33 spring rod, 34 limit rod, 35 rotating ring, 36 lock handle, 37 spherical plate, 38 conductive rod. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Reference Figures 1-9 , a power distribution cabinet with an outdoor protection structure, comprising a cabinet body 1, a main cable 4 consisting of a plurality of branch cables 10 and a circuit breaker 2, and further comprising a connection module 5 for connecting the circuit breaker 2 with the main cable 4 and the branch cables 10; The connection module 5 consists of a sub-bracket 7, multiple protective components 6 and a clamping component. Each protective component 6 is installed on the sub-bracket 7. Each protective component 6 is composed of a socket mechanism 18 and two force relief mechanisms. The clamping component is installed on the sub-bracket 7 and is used to clamp and fix the main cable 4 to maintain the stability of the main cable 4. The clamping assembly includes two swing arms 11 rotatably mounted on the sub-bracket 7 , each of which has a clamping plate 14 rotatably mounted thereon for cooperating with the main cable 4 , and a fastening mechanism is installed between the two swing arms 11 .

[0026] The clamping plate 14 on the swing arm 11 is arranged to rotate, which can ensure that the clamping plate 14 is horizontally against the main cable 4, increasing the contact area, thereby improving the stability of clamping the main cable 4.

[0027] The fastening mechanism includes two sliding plates 12 slidably mounted on corresponding swing arms 11, and a rotating block 15 is rotatably mounted on each sliding plate 12 through a rotating shaft 16. A screw rod 13 is rotatably mounted on one of the rotating blocks 15, and a nut 8 threadedly connected to the screw rod 13 is fixedly mounted on the other rotating block 15, and a circular hole is opened on the rotating block 15 for the screw rod 13 to pass through.

[0028] Place the main cable 4 between the two clamping plates 14, and then rotate the screw rod 13. Under the action of the nut 8, the screw rod 13 will move on the nut 8. The movement of the screw rod 13 drives the two sliding plates 12 to move, thereby driving the swing arm 11 to move, so that the two clamping plates 14 clamp the main cable 4. Since main cables 4 of different sizes have different requirements for the distance between the two clamping plates 14, the angles of the two swing arms 11 are different. Therefore, it is necessary to cooperate with the rotation of the rotating block 15 and the sliding of the sliding plate 12 to adapt. When finally fixed, the sliding plate 12 is always located at the uppermost part of the swing arm 11.

[0029] Example 2: This example differs from the example 1 in that: Figures 1-6 、 Figure 10-Figure 21 The socket mechanism 18 is used to connect the branch cable 10 and the circuit breaker 2, and the force relief mechanism is used to transmit the tension generated on the main cable 4 and disconnect the branch cable 10 from the circuit breaker 2 when the tension reaches a limit.

[0030] The socket mechanism 18 includes a conductive voltage plate 9 on the circuit breaker 2, a conductive connecting plate 17 fixedly mounted on the conductive voltage plate 9, a first connecting sleeve 20 fixedly mounted on the conductive connecting plate 17, a conductive rod 38 that cooperates with the branch cable 10 fixedly mounted in the first connecting sleeve 20, a locking sleeve 21 threadedly mounted on the first connecting sleeve 20, two spherical plates 37 rotatably mounted on the locking sleeve 21, a locking handle 36 fixedly mounted on each of the two spherical plates 37, and a first spring coil mounted between the spherical plates 37 and the locking sleeve 21; The locking sleeve 21 is clamped with the second connecting sleeve 22 through two spherical plates 37 (the locking sleeve 21 forms a clamping structure with the recess on the second connecting sleeve 22 through the two spherical plates 37), the second connecting sleeve 22 is threadedly installed with the third connecting sleeve 23, the third connecting sleeve 23 is fixedly installed with a threaded sleeve, the threaded sleeve is threadedly installed with a screw, the screw passes through the third connecting sleeve 23, and the first clamping plate 24 is rotatably installed on the screw, the first clamping plate 24 and the third connecting sleeve 23 are slidingly connected, the second clamping plate is fixedly installed in the third connecting sleeve 23, the first clamping plate 24 cooperates with the second clamping plate to fix the branch cable 10, and the locking sleeve 21 is equipped with two locking structures that cooperate with the corresponding lock handles 36.

[0031] Place the branch cable 10 into the third connecting sleeve 23, then rotate the screw to move the first clamping plate 24 under the action of the threaded sleeve, and cooperate with the second clamping plate to clamp and fix the branch cable 10 (such as Figure 6 As shown, the branch cable 10 is in a bent and relaxed state, so it will not be subjected to stress and will not be torn).

[0032] like Figure 11 As shown, one end of the second connecting sleeve 22 adopts a concave design, which is exactly adapted to the spherical plate 37. Rotating the lock handle 36 will drive the spherical plate 37 to rotate, so that the spherical plate 37 is stuck on the second connecting sleeve 22. Under the action of the first spring coil, the spherical plate 37 is always stuck on the second connecting sleeve 22. At this time, pulling the second connecting sleeve 22 will drive the spherical plate 37 to rotate under the pressure. Therefore, a locking structure is used to lock the lock handle 36 to fix the spherical plate 37. The locking structure includes an elastic telescopic rod 28 rotatably mounted on the locking sleeve 21 and cooperating with the lock handle 36. A second spring coil is fixedly mounted between the elastic telescopic rod 28 and the locking sleeve 21. A wedge 30 is slidably mounted on the locking sleeve 21. A magnetic column is fixedly mounted on the wedge 30 and the telescopic end of the elastic telescopic rod 28. The two magnetic columns have opposite magnetic properties. A pressure plate 29 is slidably mounted on the locking sleeve 21. A pressure wheel 31 cooperating with the wedge 30 is rotatably mounted on the pressure plate 29. like Figure 15 As shown, the locking sleeve 21 has two lugs, and the elastic telescopic rod 28 is rotatably connected to one of the lugs, and the second spring coil is also installed between the lug and the elastic telescopic rod 28. A hole is provided on the other lug, and the magnetic column on the wedge block 30 slides in the hole. When locking is required, the elastic telescopic rod 28 is manually rotated and compressed so that the magnetic column on the elastic telescopic rod 28 is inserted into the hole. At this time, the elastic telescopic rod 28 is in a normal state (non-compressed and non-extended). At this time, there is a hole and the elastic telescopic rod 28 for limiting. The elastic telescopic rod 28 is against the lock handle 36, and the lock handle 36 is locked, and the lock handle 36 will not rotate.

[0033] The exposed part of the battery cell of the branch cable 10 is located inside the third connecting sleeve 23. The third connecting sleeve 23 is made of insulating PVC material. The purpose of this setting is to keep the exposed battery cell on the branch cable 10 inside the third connecting sleeve 23 when the second connecting sleeve 22 is separated from the locking sleeve 21. The battery cell does not contact the second connecting sleeve 22, so the battery cell will not be exposed. Even if the two second connecting sleeves 22 contact, no short circuit will occur, and no arc will be generated, which is safer.

[0034] The force release mechanism includes a spiral rod 19 rotatably mounted on the sub-bracket 7, a second reset ring 27 fixedly mounted on the second connecting sleeve 22, a spiral sleeve fixedly mounted inside the second reset ring 27, a plurality of spring rods 33 fixedly mounted on the second reset ring 27, a first reset ring 26 fixedly mounted on one end of the plurality of spring rods 33 away from the second reset ring 27, a third spring coil fixedly mounted between the first reset ring 26 and the spiral rod 19, and a pressure structure that cooperates with the pressure plate 29 is mounted on the spiral rod 19 and the second connecting sleeve 22; When the main cable 4 is subjected to a certain degree of tension, the main cable 4 will drive the sub-bracket 7 downward under the action of the clamping assembly. The downward movement of the sub-bracket 7 will drive the spiral rod 19 downward. Under the action of the spiral sleeve, the spiral rod 19 will rotate around its central axis during the downward movement. The rotation of the spiral rod 19 will cause the third spring coil to reel in, converting part of the kinetic energy into the internal energy of the third spring coil. The pressing structure includes a fixed ring fixedly mounted on the second connecting sleeve 22, a disc fixedly mounted on the top of the spiral rod 19, a rotating ring 35 rotatably mounted on the disc, two spring sheets 32 cooperating with the pressing plate 29 are installed between the rotating ring 35 and the fixed ring, the two spring sheets 32 are rotatably connected to the rotating ring 35 and the fixed ring, and two limiting rods 34 cooperating with the rotating ring 35 are fixedly mounted on the fixed ring.

[0035] As the screw rod 19 moves downward, the disc moves downward, thereby driving the rotating ring 35 downward. The distance between the rotating ring 35 and the fixed ring decreases, causing the spring sheet 32 ​​to bend more, generating elastic internal energy, and converting part of the kinetic energy into internal energy to perform energy dissipation operation. A working structure is installed at the bottom of the spiral rod 19, and the working structure includes a sleeve fixedly installed at the bottom of the spiral rod 19, on which a plurality of centrifugal blades 25 are rotatably installed, and a fourth spring coil is fixedly installed between each centrifugal blade 25 and the sleeve; As the spiral rod 19 rotates, the sleeve is driven to rotate, thereby driving the centrifugal piece 25 to rotate around the central axis of the sleeve. During the rotation process, the centrifugal piece 25 rotates around the axis at the connection between the sleeve and the centrifugal piece 25 under the action of the rotating centrifugal force, converting part of the kinetic energy into the neutral potential energy of the centrifugal piece 25. At the same time, it can also enable the fourth spring coil to generate elastic internal energy, eliminate part of the kinetic energy, and buffer the sub-bracket 7.

[0036] As the bending degree of the spring sheet 32 ​​gradually increases, the spring sheet 32 ​​will press the pressing plate 29 to move the pressing plate 29 to the side away from the spring sheet 32, thereby driving the pressing wheel 31 to move. When the pressing wheel 31 abuts against the wedge block 30, the wedge block 30 drives the magnetic column to slide in the hole until the magnetic column on the elastic telescopic rod 28 moves to the hole mouth. At this time, the limit rod 34 just abuts against the rotating ring 35, and the bending degree of the spring sheet 32 ​​reaches the maximum. The spiral rod 19 will not continue to rotate or move downward. The spiral rod 19 will drive the fixed ring to move downward, and the fixed ring will drive the second connecting sleeve 22 to move downward. The downward movement of the second connecting sleeve 22 will drive the spherical The plate 37 rotates, and the rotation of the spherical plate 37 drives the lock handle 36 to rotate. Since the magnetic column is located at the hole mouth, as long as the pressing force generated by the lock handle 36 on the elastic telescopic rod 28 is greater than the suction force between the two magnetic columns, the elastic telescopic rod 28 will rotate and lose the lock on the lock handle 36. The lock handle 36 rotates, thereby causing the spherical plate 37 to rotate. The rotation of the spherical plate 37 will lose the lock on the second connecting sleeve 22, causing the second connecting sleeve 22 to separate from the locking sleeve 21, and the main cable 4 will be separated from the circuit breaker 2, thereby protecting the circuit breaker 2, and will not pull down the branch cable 10 and the main cable 4, nor will it pull down the cabinet 1.

[0037] The specific operating steps of this device are as follows: First, peel off the main cable 4 to expose the branch cable 10 inside it. Peel off the branch cable 10 to expose the battery core. Pass the branch cable 10 through the sub-bracket 7 and connect it to the third connecting sleeve 23. Place the main cable 4 between the two clamping plates 14. Then rotate the screw rod 13. Under the action of the nut 8, the screw rod 13 will move on the nut 8. The movement of the screw rod 13 drives the two sliding plates 12 to move, thereby driving the swing arm 11 to move, clamping and fixing the main cable 4. When the main cable 4 is subjected to external tension, the main cable 4 will drive the sub-bracket 7 to move downward under the action of the clamping assembly. The downward movement of the sub-bracket 7 will drive the spiral rod 19 to move downward. Under the action of the spiral sleeve, the spiral rod 19 will rotate around its central axis during the downward movement. The rotation of the spiral rod 19 will cause the third spring coil to reel in, converting part of the kinetic energy into the internal energy of the third spring coil. As the screw rod 19 moves downward, the disc moves downward, thereby driving the rotating ring 35 downward. The distance between the rotating ring 35 and the fixed ring decreases, causing the spring sheet 32 ​​to bend more, generating elastic internal energy, and converting part of the kinetic energy into internal energy to perform energy dissipation operation. As the spiral rod 19 rotates, the sleeve is driven to rotate, thereby driving the centrifugal piece 25 to rotate around the central axis of the sleeve. During the rotation process, the centrifugal piece 25 rotates around the axis of the connection between the sleeve and the centrifugal piece 25 under the action of the centrifugal force, converting part of the kinetic energy into the neutral potential energy of the centrifugal piece 25. At the same time, the fourth spring coil can also generate elastic internal energy, eliminating part of the kinetic energy and buffering the sub-bracket 7. As the bending degree of the spring piece 32 gradually increases, the spring piece 32 presses against the pressing plate 29, causing the pressing plate 29 to move away from the spring piece 32, thereby driving the pressing wheel 31 to move. When the pressing wheel 31 abuts against the wedge block 30, the wedge block 30 drives the magnetic column to slide in the hole until the magnetic column on the elastic telescopic rod 28 moves to the hole mouth. At this time, the limit rod 34 just abuts against the rotating ring 35, and the bending degree of the spring piece 32 reaches the maximum. The spiral rod 19 will not continue to rotate or move downward. The spiral rod 19 will drive the fixing ring to move downward, and the fixing ring will drive the second connecting sleeve 22 to move downward. The downward movement of the second connecting sleeve 22 will drive the spherical plate 37 to rotate, and the rotation of the spherical plate 37 will drive the lock handle 36 to rotate. Since the magnetic column is located at the hole mouth, as long as the low pressure generated by the lock handle 36 on the elastic telescopic rod 28 is greater than the suction force between the two magnetic columns, the elastic telescopic rod 28 will rotate at this time, losing the lock on the lock handle 36, and the lock handle 36 rotates, thereby causing the spherical plate 37 to rotate. The rotation of the spherical plate 37 will lose the lock on the second connecting sleeve 22, causing the second connecting sleeve 22 to separate from the locking sleeve 21, and the main cable 4 will be disengaged from the circuit breaker 2, thereby protecting the circuit breaker 2, and will not pull down the branch cable 10 and the main cable 4, nor will it pull down the cabinet 1.

[0038] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A power distribution cabinet with an outdoor protection structure, comprising a cabinet body (1), a main cable (4) composed of a plurality of branch cables (10), and a circuit breaker (2), characterized in that: It also includes a connection module (5) for connecting the circuit breaker (2) with the main cable (4) and the branch cable (10); The connection module (5) is composed of a sub-bracket (7), a plurality of protection components (6) and a clamping component, each protection component (6) is mounted on the sub-bracket (7), each protection component (6) is composed of a sleeve mechanism (18) and two force release mechanisms, and the clamping component is mounted on the sub-bracket (7) and is used to clamp and fix the main cable (4) to maintain the stability of the main cable (4); The socket mechanism (18) is used to connect the branch cable (10) and the circuit breaker (2), and the force release mechanism is used to transmit the tension generated on the main cable (4) and disconnect the branch cable (10) from the circuit breaker (2) when the tension reaches a limit.

2. The power distribution cabinet with outdoor protection structure according to claim 1, characterized in that: The clamping assembly comprises two swing arms (11) rotatably mounted on a sub-bracket (7), a clamping plate (14) cooperating with the main cable (4) being rotatably mounted on each of the two swing arms (11), and a fastening mechanism being installed between the two swing arms (11).

3. The power distribution cabinet with outdoor protection structure according to claim 2, characterized in that: The fastening mechanism comprises two sliding plates (12) respectively slidably mounted on corresponding swing arms (11), and a rotating block (15) is rotatably mounted on each of the two sliding plates (12) via a rotating shaft (16), wherein a screw rod (13) is rotatably mounted on one of the rotating blocks (15), and a nut (8) rotatably connected to the screw rod (13) is fixedly mounted on the other rotating block (15), and a circular hole for the screw rod (13) to pass through is opened on the rotating block (15).

4. The power distribution cabinet with outdoor protection structure according to claim 1, characterized in that: The socket mechanism (18) includes a conductive voltage plate (9) on the circuit breaker (2), a conductive connecting plate (17) fixedly mounted on the conductive voltage plate (9), a first connecting sleeve (20) fixedly mounted on the conductive connecting plate (17), a conductive rod (38) matched with the branch cable (10) fixedly mounted in the first connecting sleeve (20), a locking sleeve (21) rotatably mounted on the first connecting sleeve (20), two spherical plates (37) rotatably mounted on the locking sleeve (21), a locking handle (36) fixedly mounted on each of the two spherical plates (37), and a first spring coil mounted between the spherical plate (37) and the locking sleeve (21); The locking sleeve (21) is clamped with a second connecting sleeve (22) via two spherical plates (37); a third connecting sleeve (23) is threadedly mounted on the second connecting sleeve (22); a threaded sleeve is fixedly mounted on the third connecting sleeve (23); a screw is threadedly mounted on the threaded sleeve, the screw passes through the third connecting sleeve (23); a first clamping plate (24) is rotatably mounted on the screw; a second clamping plate is fixedly mounted in the third connecting sleeve (23); the first clamping plate (24) cooperates with the second clamping plate to fix the branch cable (10); and two locking structures that cooperate with corresponding lock handles (36) are mounted on the locking sleeve (21).

5. The power distribution cabinet with outdoor protection structure according to claim 4, characterized in that: The locking structure includes an elastic telescopic rod (28) rotatably mounted on the locking sleeve (21) and matched with the lock handle (36), a second spring coil is fixedly mounted between the elastic telescopic rod (28) and the locking sleeve (21), a wedge (30) is slidably mounted on the locking sleeve (21), a magnetic column is fixedly mounted on the telescopic end of the wedge (30) and the elastic telescopic rod (28), and the two magnetic columns have opposite magnetic properties, a pressure plate (29) is slidably mounted on the locking sleeve (21), and a pressure wheel (31) that matches the wedge (30) is rotatably mounted on the pressure plate (29).

6. The power distribution cabinet with outdoor protection structure according to claim 5, characterized in that: The force release mechanism comprises a spiral rod (19) rotatably mounted on a sub-bracket (7), a second reset ring (27) fixedly mounted on the second connecting sleeve (22), a spiral sleeve fixedly mounted inside the second reset ring (27), a plurality of spring rods (33) fixedly mounted on the second reset ring (27), a first reset ring (26) fixedly mounted on one end of the plurality of spring rods (33) away from the second reset ring (27), a third spring coil fixedly mounted between the first reset ring (26) and the spiral rod (19), a pressing structure matched with the pressing plate (29) mounted on the spiral rod (19) and the second connecting sleeve (22), and a working structure mounted on the bottom of the spiral rod (19).

7. The power distribution cabinet with outdoor protection structure according to claim 6, characterized in that: The pressing structure comprises a fixed ring fixedly mounted on the second connecting sleeve (22), a disc fixedly mounted on the top of the spiral rod (19), a rotating ring (35) rotatably mounted on the disc, two spring sheets (32) matched with the pressing plate (29) are mounted between the rotating ring (35) and the fixed ring, the two spring sheets (32) are rotatably connected to the rotating ring (35) and the fixed ring, and two limiting rods (34) matched with the rotating ring (35) are fixedly mounted on the fixed ring.

8. The power distribution cabinet with outdoor protection structure according to claim 6, characterized in that: The working structure comprises a sleeve fixedly mounted on the bottom of the spiral rod (19), a plurality of centrifugal plates (25) being rotatably mounted on the sleeve, and a fourth spring coil being fixedly mounted between each centrifugal plate (25) and the sleeve.

9. The power distribution cabinet with outdoor protection structure according to claim 1, characterized in that: The exposed portion of the branch cable (10) core is located inside the third connecting sleeve (23), and the third connecting sleeve (23) is made of insulating PVC material.

10. A protection method for a power distribution cabinet with an outdoor protection structure, used for the power distribution cabinet with an outdoor protection structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, peel off the main cable (4) to expose the branch cable (10) inside it, and peel off the branch cable (10) to expose the battery core, pass the branch cable (10) through the sub-bracket (7) and connect it to the socket mechanism (18), connect the socket mechanism (18) to the circuit breaker (2), and use the clamping assembly to clamp and fix the main cable (4); S2. When the main cable (4) is subjected to external tension and the tension strength is within the tolerance range, the cabinet (1) will not be pulled down. The main cable (4) in the clamping assembly will transmit the tension to the sub-bracket (7) on the upper part of the clamping assembly, causing the sub-bracket (7) to move downward; After the branch bracket (7) moves downward, the pulling force is transmitted to the release mechanism to release the pulling force, thereby elastically compensating for the movement of the branch bracket (7) and protecting the branch cable (10) to prevent the branch cable (10) from separating from the circuit breaker (2); S3. Once the main cable (4) is subjected to a large external tension, the tension on the branch bracket (7) is large, and the tension on the release mechanism is large, which will cause the socket mechanism (18) to separate. The separated branch cable (10) is wrapped by the components in the socket mechanism (18), preventing the cabinet (1) from tipping over. At the same time, the circuit breaker (2) can also be protected. In addition, the battery core in the branch cable (10) will not be exposed, playing a role in preventing leakage.

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