Open-loop current sensor with buckle type metal shell

Abstract

The utility model relates to the field of electrical technology, in particular to an open-loop current sensor with a metal shell provided with a buckle, which comprises a lower metal shell and a connecting assembly, the connecting assembly is arranged at the top of the lower metal shell, and the connecting assembly comprises an upper metal shell. The upper metal shell is movably connected to the top of the lower metal shell, and the front face of the lower metal shell is fixedly connected with an arc-shaped baffle. When the open-loop current sensor with the metal shell provided with the buckle is used, through installation of the metal upper shell and the metal lower shell, the problem of deformation of the sensor shell at a high temperature can be effectively prevented, and the stability of the sensor during use is ensured; and through clamping work of a first rotating frame, a second rotating frame, a clamping ring and an arc-shaped baffle, disassembly and assembly of the upper metal shell and the lower metal shell are more convenient, the assembly precision of the sensor can be guaranteed, and the convenience and practicability of the device can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of electrical technology, in particular to a metal shell with a buckle type open-loop current sensor. Background Art

[0002] The open-loop current sensor is a current measurement device based on the Hall effect. It is mainly composed of a PCBA, a ring shell, a ring magnetic core, a Hall element, and an aviation plug socket. The circuit part of the sensor processes and amplifies the voltage signal output by the Hall element, and finally outputs a voltage or current signal proportional to the primary current, thereby realizing the measurement of current.

[0003] The sensor requires high precision when assembled or used in high temperature conditions to improve the normal function and measurement accuracy of the sensor. At the same time, the convenience of using the sensor must also be considered, so the housing is not allowed to deform.

[0004] Traditional sensor housings are mostly non-metallic, which will deform under high temperature conditions, causing a certain impact on the stability of the product. In addition, a screwdriver is required for disassembly and assembly, which is cumbersome. At the same time, the socket cannot be disassembled separately, which makes the current inspection process more troublesome. For this reason, we proposed a metal housing with a snap-on open-loop current sensor. Utility Model Content

[0005] The purpose of the present invention is to provide a metal shell with a snap-on open-loop current sensor, so as to solve the problem that the traditional sensor proposed in the above background technology will be deformed under high temperature conditions and the disassembly and assembly process is relatively cumbersome. In order to achieve the above purpose, the present invention provides the following technical solutions: a metal shell with a snap-on open-loop current sensor, comprising a metal lower shell and a connecting assembly, the connecting assembly is arranged on the top of the metal lower shell, the connecting assembly includes a connecting assembly, the connecting assembly includes a metal upper shell, the metal upper shell is movably connected to the top of the metal lower shell, the front of the metal lower shell is fixedly connected to an arc-shaped baffle, the front of the metal upper shell is fixedly connected to a rotating frame 1, the interior of the rotating frame 1 is fixedly connected to a connecting rod, the side surface of the connecting rod is rotatably connected to a rotating frame 2, the outer side of the rotating frame 2 is rotatably connected to the outer side of the rotating frame 1, The top of the rotating frame 2 is fixedly connected with a handle, and one side and the other side of the rotating frame 2 are provided with a through hole 1, and the inside of the through hole 1 is rotatably connected with a clamping ring, and the outer side of the clamping ring is clamped with the outer side of the arc-shaped baffle. When using the device, the installation of the metal upper shell and the metal lower shell can effectively prevent the sensor shell from deforming under high temperature conditions, thereby ensuring the stability of the sensor during use, and the clamping work of the rotating frame 1 and the rotating frame 2, the clamping ring, and the arc-shaped baffle makes the disassembly and assembly of the metal upper shell and the metal lower shell more convenient, and the accuracy of the sensor assembly can be guaranteed, so that the convenience and practicality of the device can be effectively improved.

[0006] Further preferably, the back of the metal lower shell is fixedly connected to a connecting frame 1, and the two connecting frames 1 are internally rotatably connected to a rotating rod, and the back of the metal upper shell is fixedly connected to two connecting frames 2, and the two connecting frames 2 are symmetrically distributed, so that the sensor can adapt to different wires, effectively improving the practicality of the device.

[0007] Further preferably, the interior of the connecting frame 2 is rotatably connected to the side surface of the rotating rod, the interior of the metal lower shell is provided with two mounting grooves and the two mounting grooves are symmetrically distributed, the interior of the mounting groove is fixedly connected to a Hall element, and the interiors of the metal lower shell and the metal upper shell are fixedly connected to an annular magnetic core, which can check the current of the wire and improve the accuracy of the device.

[0008] Further preferably, a through hole 2 is provided at the bottom of the metal lower shell, and an aviation plug socket is movably connected inside the through hole 2. Four through holes 3 are provided at the bottom of the aviation plug socket, and the four through holes 3 are distributed at four corners. The aviation plug socket can be removed separately from the interior of the sensor, so that the sensor can be easily connected or disconnected with external equipment during installation, debugging and maintenance, thereby effectively improving work efficiency.

[0009] Further preferably, four connection grooves are opened inside the metal lower shell and are distributed at four corners, the interior of the connection grooves is adapted to the interior of the through hole three, and a PCBA board is fixedly connected to the interior of the metal lower shell.

[0010] Further preferably, the PCBA board is fixedly connected to the Hall element, and the other side of the PCBA board is fixedly connected to one side of one of the annular magnetic cores, which can quickly respond to changes in current and meet some application scenarios with high requirements for current change monitoring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, when the device is used, the installation of the metal upper shell and the metal lower shell can effectively prevent the sensor shell from being deformed under high temperature conditions, thereby ensuring the stability of the sensor when in use. In addition, the clamping work of the rotating frame one and the rotating frame two, the clamping ring, and the arc-shaped baffle makes the disassembly and assembly of the metal upper shell and the metal lower shell more convenient, and the accuracy of the sensor assembly can be guaranteed, so that the convenience and practicality of the device can be effectively improved.

[0013] In the utility model, during the working process, the through hole 2 is used in conjunction with the aviation plug socket, so that the aviation plug socket can be removed separately from the inside of the sensor, so that the sensor can be easily connected or disconnected with external equipment during the installation, debugging and maintenance of the sensor, effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection component of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the connection component of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model Figure 1 ;

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at a;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the utility model Figure 2 .

[0020] In the figure: 1. Metal lower shell; 2. Connecting assembly; 201. Metal upper shell; 202. Arc baffle; 203. Rotating frame 1; 204. Connecting rod; 205. Rotating frame 2; 206. Handle; 207. Through hole 1; 208. Snap ring; 3. Connecting frame 1; 4. Rotating rod; 5. Connecting frame 2; 6. Mounting slot; 7. Hall element; 8. Ring core; 9. Through hole 2; 10. Aviation socket; 11. Through hole 3; 12. Connecting slot; 13. PCBA board. DETAILED DESCRIPTION

[0021] 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 embodiments described 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 technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0022] See also Figures 1-6 The utility model provides a technical solution: a metal shell with a snap-on open-loop current sensor, comprising a metal lower shell 1 and a connecting assembly 2, the connecting assembly 2 being arranged on the top of the metal lower shell 1, the connecting assembly 2 including the connecting assembly 2, the connecting assembly 2 including a metal upper shell 201, the metal upper shell 201 being movably connected to the top of the metal lower shell 1, the front of the metal lower shell 1 being fixedly connected with an arc-shaped baffle 202, the front of the metal upper shell 201 being fixedly connected with a rotating frame 1 203, the interior of the rotating frame 1 203 being fixedly connected with a connecting rod 204, the side surface of the connecting rod 204 being rotatably connected with a rotating frame 205, the outer side of the rotating frame 205 being rotatably connected to the outer side of the rotating frame 1 203, the top of the rotating frame 205 being fixedly connected with a handle 206, one side and the other side of the rotating frame 205 being provided with a through hole 1 207, the interior of the through hole 1 207 being rotatably connected with a snap ring 208, the outer side of the snap ring 208 being snapped with the outer side of the arc-shaped baffle 202.

[0023] In this embodiment, Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6As shown, the back of the metal lower shell 1 is fixedly connected to a connecting frame 3, and the interiors of the two connecting frames 3 are rotatably connected to a rotating rod 4. The back of the metal upper shell 201 is fixedly connected to two connecting frames 2 5, and the two connecting frames 2 5 are symmetrically distributed. The interiors of the connecting frames 2 5 are rotatably connected to the side surfaces of the rotating rod 4. The interior of the metal lower shell 1 is provided with two mounting grooves 6, and the two mounting grooves 6 are symmetrically distributed. The interiors of the mounting grooves 6 are fixedly connected to a Hall element 7. The interiors of the metal lower shell 1 and the metal upper shell 201 are fixedly connected to a ring core 8. When using the device, the staff first First, the Hall element 7 can be installed inside the installation groove 6 opened in the metal lower shell 1, and then the annular magnetic core 8 can be installed inside the metal lower shell 1 and the metal upper shell 201 respectively. Then, the PCBA board 13 can be installed inside the metal lower shell 1 so that the PCBA board 13 can be connected to the Hall element 7. Finally, the aviation socket 10 can be installed inside the through hole 2 9 opened in the metal lower shell 1. Then, the staff can insert the rotating rod 4 into the connecting frame 1 3 and the connecting frame 2 5 to make the metal lower shell 1 and the metal upper shell 201 rotate and connect.

[0024] In this embodiment, Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6 As shown, a through hole 29 is provided at the bottom of the metal lower shell 1, and an aviation plug socket 10 is movably connected inside the through hole 29. Four through holes 3 11 are provided at the bottom of the aviation plug socket 10, and the four through holes 3 11 are distributed at four corners. Four connecting grooves 12 are provided inside the metal lower shell 1, and the four connecting grooves 12 are distributed at four corners. The interior of the connecting groove 12 is adapted to the interior of the through hole 3 11. A PCBA board 13 is fixedly connected to the interior of the metal lower shell 1, and the PCBA board 13 is fixedly connected to the Hall element 7. The other side of the PCBA board 13 is fixedly connected to one side of one of the annular magnetic cores 8. The aviation plug socket 10 can be installed inside the through hole 2 9 provided in the metal lower shell 1, so that the device can check the current of the wire, and during operation, the aviation plug socket 10 can be removed from the inside of the device through the cooperation of the through hole 2 9 and the aviation plug socket 10.

[0025] The use method and advantages of this utility model: The metal shell with a snap-on open-loop current sensor works as follows when in use:

[0026] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, when using the device, the staff can first install the Hall element 7 inside the installation slot 6 opened in the metal lower shell 1, and then install the annular magnetic core 8 inside the metal lower shell 1 and the metal upper shell 201 respectively, and then install the PCBA board 13 inside the metal lower shell 1 so that the PCBA board 13 can be connected to the Hall element 7, and finally install the aviation socket 10 into the through hole 2 9 opened in the metal lower shell 1, and then the staff can insert the rotating rod 4 into the interior of the connecting frame 1 3 and the connecting frame 2 5 to make the metal lower shell 1 and the metal upper shell 201 rotate and connect. Then the staff can swing the rotating frame 2 205 downward through the handle 206, and rotate the rotating frame 2 205 through the cooperation with the rotating frame 1 203 and the connecting rod 204. The second rotating frame 205 can be turned downward with the snap ring 208, so that the snap ring 208 can move to the inside of the arc baffle 202. Then, the second rotating frame 205 can be turned upward by the handle 206, and the rotating frame 1 203 is connected with the second rotating frame 205 through the cooperation. The protrusion on the outside of the second rotating frame 205 can limit the rotating frame 205, so that the second rotating frame 205 can drive the snap ring 208 to turn upward, so that the snap ring 208 can be clamped with the arc baffle 202, so that it can fix and limit the metal lower shell 1 and the metal upper shell 201, so that the device can check the current of the wire, and in the process of operation, through the cooperation of the through hole 2 9 and the aviation plug socket 10, it can remove the aviation plug socket 10 from the inside of the device.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal housing with a snap-on open-loop current sensor, comprising a metal lower housing (1) and a connecting assembly (2), characterized in that: The connecting assembly (2) is arranged on the top of the metal lower shell (1), the connecting assembly (2) includes a connecting assembly (2), the connecting assembly (2) includes a metal upper shell (201), the metal upper shell (201) is movably connected to the top of the metal lower shell (1), the front of the metal lower shell (1) is fixedly connected to an arc baffle (202), the front of the metal upper shell (201) is fixedly connected to a rotating frame (203), the interior of the rotating frame (203) is fixedly connected to a connecting rod (2 04), the side surface of the connecting rod (204) is rotatably connected to the rotating frame 2 (205), the outer side of the rotating frame 2 (205) is rotatably connected to the outer side of the rotating frame 1 (203), the top of the rotating frame 2 (205) is fixedly connected to a handle (206), one side and the other side of the rotating frame 2 (205) are provided with a through hole 1 (207), the interior of the through hole 1 (207) is rotatably connected to a snap ring (208), and the outer side of the snap ring (208) is snapped to the outer side of the arc baffle (202).

2. The metal housing snap-on open-loop current sensor according to claim 1, characterized in that: The back of the metal lower shell (1) is fixedly connected to a connecting frame 1 (3), and the two connecting frames 1 (3) are internally rotatably connected to a rotating rod (4). The back of the metal upper shell (201) is fixedly connected to two connecting frames 2 (5), and the two connecting frames 2 (5) are symmetrically distributed.

3. The metal housing snap-on open-loop current sensor according to claim 2, characterized in that: The interior of the second connecting frame (5) is rotatably connected to the side surface of the rotating rod (4); the interior of the metal lower shell (1) is provided with two mounting grooves (6) and the two mounting grooves (6) are symmetrically distributed; the interior of the mounting groove (6) is fixedly connected to a Hall element (7); and the interiors of the metal lower shell (1) and the metal upper shell (201) are fixedly connected to an annular magnetic core (8).

4. The metal housing snap-on open-loop current sensor according to claim 3, characterized in that: The bottom of the metal lower shell (1) is provided with a through hole 2 (9), the interior of the through hole 2 (9) is movably connected to an aviation socket (10), and the bottom of the aviation socket (10) is provided with four through holes 3 (11), and the four through holes 3 (11) are distributed in four corners.

5. The metal housing snap-on open-loop current sensor according to claim 4, characterized in that: The interior of the metal lower shell (1) is provided with four connection grooves (12), and the four connection grooves (12) are distributed at four corners. The interior of the connection grooves (12) is adapted to the interior of the third through hole (11). The interior of the metal lower shell (1) is fixedly connected with a PCBA board (13).

6. The metal housing snap-on open-loop current sensor according to claim 5, characterized in that: The PCBA board (13) is fixedly connected to the Hall element (7), and the other side of the PCBA board (13) is fixedly connected to one side of one of the annular magnetic cores (8).

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