Three-phase integrated current sensor

Abstract

The utility model discloses a three-phase integrated current sensor, which belongs to the technical field of current sensors and comprises a bottom plate, a shell is arranged above the bottom plate, bottom blocks are arranged at two ends of the shell, screws are arranged above the bottom blocks, a top plate is arranged above the shell, and components convenient to disassemble and assemble are arranged at two ends of the top plate. A wiring end is arranged on one side of the bottom plate, a status lamp is arranged above the wiring end, and a protection assembly is arranged on one side of the wiring end. The detachable base, the square inserting rod, the fixing rod, the fixing sliding block and the fixing spring are arranged, so that the bottom plate and the top plate are conveniently detached, and the use convenience is improved; according to the utility model, the protection seat, the bidirectional trapezoidal screw rod, the rotating handle, the square sliding block, the protection plate and the dustproof sponge block are arranged, so that a wiring part can be protected after wiring, dust is prevented from entering, and the use practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of current sensors, and in particular relates to a three-phase integrated current sensor. Background Art

[0002] A current sensor is a detection device that can sense the information of the measured current and transform the sensed information into an electrical signal or other required form of information output that meets certain standards according to certain rules, so as to meet the requirements of information transmission, processing, storage, display, recording and control. The current detected in mining and other industries is 100A-2000A, and the maximum detection voltage is 3300 volts. Therefore, three-phase independent current sensors are used to detect the three-phase current in combination.

[0003] Chinese patent application No. 202223279157.X discloses a three-phase integrated current sensor, including a bottom plate, a top plate and a shell, characterized in that the bottom plate is respectively provided with round holes, bolts are installed on the round holes, the bolts are movably connected to the round holes, nuts are installed on the top of the bolts, the nuts are threadedly connected to the bolts, grooves are installed at equal intervals between the bottom end of the top plate and the top of the bottom plate, a shell is installed on the top of the bottom plate, bottom blocks are installed on both sides of the bottom end of the shell, one end of the bottom block is respectively fixedly connected to the shell, screws are installed in the middle part of the bottom block, the screws are movably connected to the bottom block, round holes are installed in the middle part of the grooves, a terminal is installed in the middle part of one side of the bottom plate, a status light is installed on the top of the terminal, magnetic induction coils are installed inside the shell, the top of the bolts are movably connected to the top plate, the upper and lower ends of the shell are respectively engaged with the grooves, and the bottom ends of the screws are threadedly connected to the bottom plate. The utility model has a simple structure and is easy to operate.

[0004] The above-mentioned patent disclosed, 1. When in use, multiple bolts and nuts are used to disassemble and assemble the top plate and the bottom plate, so as to facilitate the maintenance and replacement of the magnetic induction coil at a later time, but when in use, the disassembly and assembly between the top plate and the bottom plate is not convenient enough, and the convenience is not high enough; 2. When in use, wiring is carried out through the wiring terminal, but after wiring, it is inconvenient to dustproof the wiring point, and dust can easily enter. Utility Model Content

[0005] To solve the problems raised in the above background technology, the utility model provides a three-phase integrated current sensor, which is convenient for disassembly and assembly between the top plate and the bottom plate, so as to facilitate the maintenance and replacement of the magnetic induction coil in the later stage, and can protect the wiring point after wiring to prevent dust from entering.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-phase integrated current sensor, comprising a base plate, a shell is arranged above the base plate, bottom blocks are arranged at both ends of the shell, screws are arranged above the bottom blocks, a top plate is arranged above the shell, convenient disassembly and assembly components are arranged at both ends of the top plate, a wiring terminal is arranged on one side of the base plate, a status light is arranged above the wiring terminal, and a protective component is arranged on one side of the wiring terminal.

[0007] Preferably, the convenient disassembly and assembly component includes a disassembly and assembly seat, a square plug rod, a fixed rod, a fixed slider and a fixed spring, wherein disassembly and assembly seats are provided at both ends of the shell, a square plug rod is inserted in the middle of the disassembly and assembly seat, a fixed rod is provided on one side of the square plug rod, a fixed slider is provided below the fixed rod, and a fixed spring is provided on one side of the fixed slider.

[0008] Preferably, a limit rod is arranged above the fixing rod, a limit slider is arranged on one side of the limit rod, and a limit spring is arranged above the limit slider.

[0009] Preferably, a limiting hole and a positioning hole cooperating with the limiting rod are respectively provided on the upper side of the fixing rod.

[0010] Preferably, the protective assembly includes a protective seat, a bidirectional trapezoidal screw, a turning handle, a square slider, a protective plate and a dustproof sponge block, wherein a protective seat is provided on one side of the wiring terminal, a bidirectional trapezoidal screw is provided inside the protective seat, a turning handle is provided at one end of the bidirectional trapezoidal screw, the surface of the bidirectional trapezoidal screw is symmetrical and is threadedly connected with a square slider, a protective plate is provided at one end of the square slider, and a dustproof sponge block is provided at one end of the protective plate.

[0011] Preferably, mounting seats are provided at both ends of the protective seat, and mounting bolts are provided on one side of the mounting seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model realizes convenient disassembly and assembly between the top plate and the bottom plate by setting up a convenient disassembly and assembly component, so as to facilitate the maintenance and replacement of the magnetic induction coil in the later stage. A disassembly and assembly seat, a square plug rod, a fixing rod, a fixing slide block and a fixing spring are set to facilitate the disassembly and assembly between the bottom plate and the top plate. A limit rod, a limit slide block and a limit spring are set to strengthen the fixation of the fixing rod. At the same time, the fixing rod can be limited when the fixing rod is pulled out to prevent it from rebounding.

[0014] 2. The utility model sets a protective component, which can protect the wiring point to prevent dust from entering after wiring. A protective seat, a two-way trapezoidal screw, a handle, a square slider, a protective plate and a dustproof sponge block are set, which can protect the wiring point to prevent dust from entering after wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model cut from the front view;

[0017] Figure 3 This is a schematic diagram of the structure of the convenient disassembly and assembly components of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the enlarged A position of the convenient disassembly and assembly component of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the protective component of the utility model.

[0020] In the figure: 1. bottom plate; 2. outer shell; 3. bottom block; 4. screw; 5. top plate; 6. convenient disassembly and assembly component; 61. disassembly and assembly seat; 62. square plug rod; 63. fixing rod; 64. fixing slider; 65. fixing spring; 631. limit rod; 632. limit slider; 633. limit spring; 7. terminal; 8. status light; 9. protection component; 91. protection seat; 92. two-way trapezoidal screw rod; 93. turning handle; 94. square slider; 95. protection plate; 96. dustproof sponge block; 97. mounting seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-5 The utility model provides the following technical solutions: a three-phase integrated current sensor, comprising a bottom plate 1, a shell 2 is arranged above the bottom plate 1, bottom blocks 3 are arranged at both ends of the shell 2, screws 4 are arranged above the bottom block 3, a top plate 5 is arranged above the shell 2, convenient disassembly and assembly components 6 are arranged at both ends of the top plate 5, a wiring terminal 7 is arranged on one side of the bottom plate 1, a status light 8 is arranged above the wiring terminal 7, and a protective component 9 is arranged on one side of the wiring terminal 7.

[0024] Specifically, the convenient disassembly and assembly component 6 includes a disassembly and assembly seat 61, a square plug rod 62, a fixed rod 63, a fixed slider 64 and a fixed spring 65, wherein disassembly and assembly seats 61 are provided at both ends of the outer shell 2, a square plug rod 62 is inserted in the middle of the disassembly and assembly seat 61, a fixed rod 63 is provided on one side of the square plug rod 62, a fixed slider 64 is provided below the fixed rod 63, and a fixed spring 65 is provided on one side of the fixed slider 64.

[0025] By adopting the above technical solution, the fixing rod 63 is pulled, and the fixing rod 63 drives the fixing slider 64 to move and compress the fixing spring 65 until the fixing rod 63 is disengaged from the fixing hole. Then the disassembly seat 61 and the square plug rod 62 can be separated, thereby separating the top plate 5 and the bottom plate 1. When the device is in use, it is easy to disassemble and assemble the top plate 5 and the bottom plate 1, so as to facilitate the later maintenance and replacement of the magnetic induction coil.

[0026] Specifically, a limit rod 631 is disposed above the fixing rod 63 , a limit slider 632 is disposed on one side of the limit rod 631 , and a limit spring 633 is disposed above the limit slider 632 .

[0027] By adopting the above technical solution, by pulling the limit rod 631, the limit rod 631 drives the limit slider 632 to move and compress the limit spring 633, so that the limit rod 631 disengages from the positioning hole. After that, when the fixing rod 63 moves to the limit hole and the limit rod 631 overlaps, the limit rod 631 is inserted into the limit hole to limit and fix the fixing rod 63 to prevent it from rebounding.

[0028] Specifically, a limiting hole and a positioning hole that match the limiting rod 631 are respectively opened on the upper side of the fixing rod 63 .

[0029] By adopting the above technical solution, the limiting hole facilitates the insertion of the limiting rod 631 to limit and fix the fixing rod 63 to prevent it from rebounding, and the positioning hole facilitates the insertion of the limiting rod 631 to strengthen the fixation of the fixing rod 63.

[0030] When this embodiment is in use: by pulling the limit rod 631, the limit rod 631 drives the limit slider 632 to move and compress the limit spring 633, so that the limit rod 631 disengages from the positioning hole, and then pulling the fixing rod 63, the fixing rod 63 drives the fixing slider 64 to move and compress the fixing spring 65 until the fixing rod 63 disengages from the fixing hole. When the fixing rod 63 moves to the limit hole and coincides with the limit rod 631, the limit rod 631 is inserted into the limit hole to limit and fix the fixing rod 63 to prevent it from rebounding. Then the disassembly seat 61 and the square plug rod 62 can be separated, thereby separating the top plate 5 and the bottom plate 1, so that when the device is in use, it is easy to disassemble and assemble the top plate 5 and the bottom plate 1, so as to facilitate the later maintenance and replacement of the magnetic induction coil.

[0031] Example 2

[0032] The difference between this embodiment and embodiment 1 is that: specifically, the protective component 9 includes a protective seat 91, a bidirectional trapezoidal screw 92, a turning handle 93, a square slider 94, a protective plate 95 and a dustproof sponge block 96, wherein a protective seat 91 is provided on one side of the terminal 7, a bidirectional trapezoidal screw 92 is provided inside the protective seat 91, a turning handle 93 is provided at one end of the bidirectional trapezoidal screw 92, the surface of the bidirectional trapezoidal screw 92 is symmetrical and is threadedly connected with a square slider 94, a protective plate 95 is provided at one end of the square slider 94, and a dustproof sponge block 96 is provided at one end of the protective plate 95.

[0033] By adopting the above technical solution, after the wiring is completed, the handle 93 is rotated, and the rotation of the handle 93 drives the bidirectional trapezoidal screw 92 to rotate, and the rotation of the bidirectional trapezoidal screw 92 drives the square slider 94 to move, and the movement of the square slider 94 drives the protective plate 95 and the dustproof sponge block 96 to move, so that the wiring point is locked and blocked to prevent dust from entering. When the device is used, it is convenient to protect the wiring point after wiring to prevent dust from entering, thereby improving the practicality of use.

[0034] Specifically, mounting seats 97 are provided at both ends of the protection seat 91 , and mounting bolts are provided on one side of the mounting seat 97 .

[0035] By adopting the above technical solution, the mounting seat 97 and the mounting bolts cooperate to facilitate the installation of the protective seat 91.

[0036] When the present embodiment is in use: after the wiring is completed, the handle 93 is rotated, and the rotation of the handle 93 drives the bidirectional trapezoidal screw 92 to rotate, and the rotation of the bidirectional trapezoidal screw 92 drives the square slider 94 to move, and the movement of the square slider 94 drives the protective plate 95 and the dustproof sponge block 96 to move, and the wiring point is clamped and blocked to prevent dust from entering. When the device is in use, it is convenient to protect the wiring point after wiring to prevent dust from entering, thereby improving the practicality of use.

[0037] The structure and use principle of the shell 2, terminal 7 and status light 8 in the utility model have been disclosed in a three-phase integrated current sensor disclosed in Chinese patent application No. 202223279157.X. Its working principle is that the shell 2 and the magnetic induction coil of the utility model can be removed from the device to facilitate later maintenance and replacement. The top plate 5 and the bottom plate 1 are embedded in the shell 2 with each other. The structure is simple and easy to operate. The status light 8 can reflect whether the equipment is operating normally. At the same time, the shell 2 can isolate the mutual influence between the magnetic induction coils and reduce measurement errors.

[0038] Working principle and use process of the utility model: When the utility model is used, the shell 2 with the magnetic induction coil is placed into the bottom plate 1, and then the shell 2 is fixed by screws 4 and bottom block 3, and then the top plate 5 and the shell 2 are engaged, and the top plate 5 and the bottom plate 1 are fixed by the convenient disassembly and assembly component 6, and then the wiring is connected through the wiring terminal 7. After the wiring is completed, the wiring point is protected by the protective component 9 to prevent dust from entering, and the status light 8 can reflect whether the equipment is operating normally. When the shell 2 and the magnetic induction coil need to be maintained or replaced, the top plate 5 is removed by the convenient disassembly and assembly component 6, and then the shell 2 and the magnetic induction coil can be removed for maintenance or replacement. When the convenient disassembly and assembly component 6 is in use, the limit rod 631 is pulled, and the limit rod 631 drives the limit slider 632 to move the compressed limit spring 633, so that the limit rod 631 is disengaged from the positioning hole, and then the fixing rod 63 is pulled, and the fixing rod 63 drives the fixed slider 64 to move the compressed The fixing spring 65 is used until the fixing rod 63 is out of the fixing hole. When the fixing rod 63 moves to the limiting hole and coincides with the limiting rod 631, the limiting rod 631 is inserted into the limiting hole to limit and fix the fixing rod 63 to prevent it from rebounding. Then the disassembly seat 61 and the square plug rod 62 can be separated, thereby separating the top plate 5 and the bottom plate 1, so that the device is convenient for disassembly and assembly between the top plate 5 and the bottom plate 1 when in use, so as to facilitate the later maintenance and replacement of the magnetic induction coil. When the protective component 9 is in use, after the wiring is completed, the turning handle 93 is turned. The turning handle 93 drives the two-way trapezoidal screw rod 92 to rotate. The two-way trapezoidal screw rod 92 rotates to drive the square slider 94 to move. The square slider 94 moves to drive the protective plate 95 and the dustproof sponge block 96 to move, and the wiring point is engaged and blocked to prevent dust from entering. When the device is in use, it is convenient to protect the wiring point after wiring to prevent dust from entering, thereby improving the practicality of use.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-phase integrated current sensor, comprising a base plate, characterized in that: A shell is arranged above the bottom plate, bottom blocks are arranged at both ends of the shell, screws are arranged above the bottom blocks, a top plate is arranged above the shell, convenient disassembly and assembly components are arranged at both ends of the top plate, a wiring terminal is arranged on one side of the bottom plate, a status light is arranged above the wiring terminal, and a protective component is arranged on one side of the wiring terminal.

2. A three-phase integrated current sensor according to claim 1, characterized in that: The convenient disassembly and assembly component includes a disassembly and assembly seat, a square insertion rod, a fixed rod, a fixed slider and a fixed spring, wherein disassembly and assembly seats are arranged at both ends of the shell, a square insertion rod is inserted in the middle of the disassembly and assembly seat, a fixed rod is arranged on one side of the square insertion rod, a fixed slider is arranged below the fixed rod, and a fixed spring is arranged on one side of the fixed slider.

3. A three-phase integrated current sensor according to claim 2, characterized in that: A limit rod is arranged above the fixing rod, a limit slide block is arranged on one side of the limit rod, and a limit spring is arranged above the limit slide block.

4. The three-phase integrated current sensor according to claim 3, characterized in that: A limiting hole and a positioning hole matching the limiting rod are respectively provided above the fixing rod.

5. The three-phase integrated current sensor according to claim 1, characterized in that: The protective assembly includes a protective seat, a bidirectional trapezoidal screw, a turning handle, a square slider, a protective plate and a dustproof sponge block, wherein a protective seat is arranged on one side of the wiring terminal, a bidirectional trapezoidal screw is arranged inside the protective seat, a turning handle is arranged at one end of the bidirectional trapezoidal screw, the surface of the bidirectional trapezoidal screw is symmetrical and is threadedly connected with a square slider, a protective plate is arranged at one end of the square slider, and a dustproof sponge block is arranged at one end of the protective plate.

6. A three-phase integrated current sensor according to claim 5, characterized in that: Mounting seats are arranged at both ends of the protection seat, and mounting bolts are arranged on one side of the mounting seat.

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