Open-type Hall open-loop current sensor

Abstract

The utility model discloses an open-type Hall open-loop current sensor which comprises an upper shell, a lower shell, an upper magnetic core, a lower magnetic core, an elastic sheet, a framework, a circuit board assembly and a lead, the upper shell is rotatably connected to the lower shell, the upper magnetic core is embedded in the upper shell, and the lower magnetic core is embedded in the lower shell. An upper cover, a lower magnetic core, an elastic piece, a framework and a circuit board assembly are sequentially arranged in the lower shell from top to bottom, a lead penetrates through the lower shell, and the lead is electrically connected with the circuit board assembly. The open-type Hall open-loop current sensor is simple in structure and convenient to use, and through the cooperative arrangement of the upper shell, the lower shell, the upper magnetic core, the lower magnetic core, the elastic sheet, the framework, the circuit board assembly and the lead, the primary side conductor passes through the current sensor to measure the current of the primary side conductor under the condition that the primary side conductor is not disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of current sensors, and particularly relates to an open-type Hall open-loop current sensor. Background Art

[0002] When a traditional Hall sensor measures a measured object, the primary conductor needs to be passed through the magnetic core, mainly by a direct connection method. This method has little impact on equipment that can be powered off at any time. However, in some application scenarios, the loss of power-off of the measured device is large, and this installation method cannot be installed. Moreover, the primary conductor is generally heavy, and it takes a long time to disassemble and assemble this component, affecting the installation efficiency.

[0003] Based on the above situation, the utility model provides an open-type Hall open-loop current sensor, which can effectively solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an open-type Hall open-loop current sensor. The open-type Hall open-loop current sensor of the utility model has a simple structure and is convenient to use. Through the cooperative setting among the upper shell, the lower shell, the upper magnetic core, the lower magnetic core, the elastic sheet, the skeleton, the circuit board assembly and the lead wire, the primary conductor can be passed through the current sensor without disassembling the primary conductor, and the current of the primary conductor can be measured.

[0005] The utility model is realized by the following technical solutions:

[0006] An open-type Hall open-loop current sensor includes an upper shell, a lower shell, an upper magnetic core, a lower magnetic core, an elastic sheet, a skeleton, a circuit board assembly and a lead wire. The upper shell is rotatably connected to the lower shell. The upper magnetic core is embedded in the upper shell. An upper cover, a lower magnetic core, an elastic sheet, a skeleton and a circuit board assembly are sequentially arranged in the lower shell from top to bottom. A lead wire penetrates through the lower shell, and the lead wire is electrically connected to the circuit board assembly.

[0007] The purpose of the utility model is to provide an open-type Hall open-loop current sensor. The open-type Hall open-loop current sensor of the utility model has a simple structure and is convenient to use. Through the cooperative setting among the upper shell, the lower shell, the upper magnetic core, the lower magnetic core, the elastic sheet, the skeleton, the circuit board assembly and the lead wire, the primary conductor can be passed through the current sensor without disassembling the primary conductor, and the current of the primary conductor can be measured.

[0008] Preferably, a rotating block is arranged on one side of the upper shell, a rotating seat is arranged on one side of the lower shell, a rotating shaft is arranged in the rotating seat, and the rotating block is snap-connected to the rotating shaft.

[0009] Preferably, a clamping plate is provided on the other side of the upper housing, a clamping groove is formed on the clamping plate, a clamping block is provided on the other side of the lower housing, and the clamping block is snap-connected to the clamping plate.

[0010] Preferably, the skeleton is snap-connected to the lower housing.

[0011] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0012] The open-type Hall open-loop current sensor of the present utility model has a simple structure and is convenient to use. Through the cooperative setting among the upper housing, the lower housing, the upper magnetic core, the lower magnetic core, the elastic sheet, the skeleton, the circuit board assembly and the lead wire, it realizes the current measurement of the primary conductor by passing the primary conductor through the current sensor without disassembling the primary conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded structural schematic diagram of the present utility model;

[0014] Figure 2 is a structural schematic diagram of the present utility model;

[0015] Figure 3 is a partial structural schematic diagram of the present utility model;

[0016] Figure 4 is a structural schematic diagram of the circuit board assembly and the lead wire of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the preferred implementation solutions of the present utility model will be described below in conjunction with specific embodiments. However, it should be understood that the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent; for better explaining this embodiment, some components in the drawings will be omitted, enlarged or reduced, and do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent.

[0018] Embodiment 1:

[0019] As Figures 1 to 4As shown in the figure, the present utility model provides an open-type Hall open-loop current sensor, which includes an upper housing 1, a lower housing 2, an upper magnetic core 3, a lower magnetic core 4, a spring piece 5, a skeleton 6, a circuit board assembly 7, and a lead 8. The upper housing 1 is rotatably connected to the lower housing 2. The upper magnetic core 3 is embedded in the upper housing 1. An upper cover 9, a lower magnetic core 4, a spring piece 5, a skeleton 6, and a circuit board assembly 7 are sequentially arranged in the lower housing 2 from top to bottom. The lead 8 penetrates through the lower housing 2, and the lead 8 is electrically connected to the circuit board assembly 7.

[0020] The main function of the magnetic core is to concentrate the magnetic lines of force. It can concentrate the magnetic field generated by the current inside the magnetic core, thereby enhancing the magnetic induction intensity and enabling the sensor to detect the current more accurately.

[0021] The skeleton 6 adopts an asymmetric structure design, which plays an anti-fooling role, increases the accuracy of product installation, and at the same time has the function of fixing the magnetic core, which can ensure the stability and accuracy of product performance.

[0022] The spring piece 5 provides a certain supporting force for the magnetic core. It is an interference fit when not hermetically assembled. After assembly, this part moves downward and the supporting force comes into play, improving the problem of loose combination of the upper and lower magnetic cores 4, reducing the gaps generated on the contact surface, and improving the stability of the sensor performance.

[0023] The circuit board assembly 7 is composed of a printed circuit board, electronic components, and terminals. The Hall element on it is the core of this circuit board. It is fixed in the air gap to detect the magnetic flux and can convert the magnetic signal into an electrical signal. The printed circuit board mainly realizes circuit connection, connecting the corresponding input and output pins to the output lead 8 for users to use.

[0024] The output lead 8 of the sensor is an important part for connecting the sensor and other devices. This sensor is designed according to the customer's application requirements. The output form is terminal type and can be directly plugged into the customer's socket. And according to the application scenario, the length of the lead 8 is designed to avoid excessive redundancy of the lead 8 and can transmit the signal generated by the sensor to the subsequent processing device or system.

[0025] Embodiment 2:

[0026] As Figures 1 to 4 As shown in the figure, the present utility model provides an open-type Hall open-loop current sensor, which includes an upper housing 1, a lower housing 2, an upper magnetic core 3, a lower magnetic core 4, a spring piece 5, a skeleton 6, a circuit board assembly 7, and a lead 8. The upper housing 1 is rotatably connected to the lower housing 2. The upper magnetic core 3 is embedded in the upper housing 1. An upper cover 9, a lower magnetic core 4, a spring piece 5, a skeleton 6, and a circuit board assembly 7 are sequentially arranged in the lower housing 2 from top to bottom. The lead 8 penetrates through the lower housing 2, and the lead 8 is electrically connected to the circuit board assembly 7.

[0027] One side of the upper housing 1 is provided with a rotating block 11, one side of the lower housing 2 is provided with a rotating seat 21, a rotating shaft 22 is arranged inside the rotating seat 21, and the rotating block 11 is snap-connected to the rotating shaft 22.

[0028] Further, in another embodiment, the other side of the upper housing 1 is provided with a clamping plate 12, a clamping groove is formed on the clamping plate 12, the other side of the lower housing 2 is provided with a clamping block 23, and the clamping block 23 is snap-connected to the clamping plate 12.

[0029] Due to the above structure, one end of the upper housing 1 can be snap-connected to the lower housing 2.

[0030] Further, in another embodiment, the framework 6 is snap-connected to the lower housing 2.

[0031] Reduce the assembly difficulty and improve the installation efficiency.

[0032] The working principle of an embodiment of the present utility model is as follows:

[0033] For an open-type Hall open-loop current sensor, after the upper housing 1 is opened, the primary conductor is placed between the upper housing 1 and the lower housing 2. Therefore, the primary conductor is between the upper magnetic core 3 and the lower magnetic core 4, which is convenient for measuring the primary conductor.

[0034] According to the description and drawings of the present utility model, those skilled in the art can easily manufacture or use the open-type Hall open-loop current sensor of the present utility model and can produce the positive effects recorded in the present utility model.

[0035] Unless otherwise specified, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present utility model are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the drawings and according to the specific circumstances.

[0036] Unless otherwise clearly defined and limited, in this utility model, if there are terms such as "set", "connected" and "coupled", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific situations.

[0037] The above are only the preferred embodiments of this utility model, and do not impose any formal limitations on this utility model. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of this utility model all fall within the protection scope of this utility model.

Claims

1. An open-type Hall open-loop current sensor, characterized in that: It includes an upper shell, a lower shell, an upper magnetic core, a lower magnetic core, a spring, a frame, a circuit board assembly and a lead. The upper shell is rotatably connected to the lower shell, the upper magnetic core is embedded in the upper shell, and the lower shell is provided with an upper cover, a lower magnetic core, a spring, a frame and a circuit board assembly from top to bottom. The lower shell is penetrated by a lead, and the lead is electrically connected to the circuit board assembly.

2. The open-type Hall open-loop current sensor according to claim 1, characterized in that: A rotating block is provided at one side of the upper shell, a rotating seat is provided at one side of the lower shell, a rotating shaft is provided in the rotating seat, and the rotating block is buckledly connected to the rotating shaft.

3. The open-type Hall open-loop current sensor according to claim 2, characterized in that: A clamping plate is provided on the other side of the upper shell, a clamping groove is provided on the clamping plate, and a clamping block is provided on the other side of the lower shell, and the clamping block is buckled and connected with the clamping plate.

4. The open-type Hall open-loop current sensor according to claim 1, characterized in that: The frame is snap-connected to the lower shell.

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