Shell structure of current sensor

Abstract

The utility model discloses a current sensor shell structure, which comprises an upper shell and a lower shell, the upper shell and the lower shell are combined to form an accommodating cavity, and a coil and a circuit board are arranged in the accommodating cavity; a protrusion is arranged on the outer side face of the upper shell, a clamping groove corresponding to the protrusion is formed in the inner side of the lower shell, and the upper shell and the lower shell are connected in the mode that the protrusion is clamped into the clamping groove. The shell structure of the current sensor is simple in structure and convenient to use, the upper shell and the lower shell can be assembled only by one pushing action through the matching of the hidden protrusions and the clamping grooves, the rotary motion or the positioning work before installation is not needed, the shell structure is fast and simple, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of current sensors, in particular to a shell structure of a current sensor. Background Art

[0002] The photovoltaic market has shown a trend of diversification, and the application forms of photovoltaic products have increased, especially the diversification of distributed fields, such as offshore photovoltaic power stations, fish-photovoltaic complementarity, photovoltaic + construction, etc. The application environment is more complex and diverse. Therefore, the requirements for dustproof, waterproof, and corrosion-resistant sensors used in this field have been further improved. In this context, companies need to improve the dustproof, waterproof, and corrosion-resistant designs of their products to better adapt to new application scenarios and thereby increase product competitiveness.

[0003] Based on the above situation, the utility model proposes a current sensor housing structure, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a current sensor housing structure. The current sensor housing structure of the utility model is simple in structure and easy to use. Through the cooperation of the hidden protrusion and the slot, the upper housing and the lower housing can be assembled with only one push action, without the need for rotational movement or pre-installation positioning work, which is quick and simple, and improves assembly efficiency.

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

[0006] A current sensor housing structure comprises an upper housing and a lower housing, wherein the upper housing and the lower housing are combined to form a housing cavity, wherein a coil and a circuit board are arranged in the housing cavity;

[0007] The outer side surface of the upper shell is provided with a protrusion, and the inner side of the lower shell is provided with a slot corresponding to the protrusion, and the upper shell and the lower shell are connected by the protrusion being inserted into the slot.

[0008] The purpose of the utility model is to provide a current sensor housing structure. The current sensor housing structure of the utility model is simple in structure and easy to use. Through the cooperation of the hidden protrusion and the slot, the upper housing and the lower housing can be assembled with only one push action, without the need for rotational movement or pre-installation positioning work, which is quick and simple, and improves assembly efficiency.

[0009] Preferably, a first primary insulating square hole is provided in the middle of the upper shell, and a second primary insulating square hole is provided in the middle of the lower shell. The second primary insulating square hole is embedded in the first primary insulating square hole, and the first primary insulating square hole partially overlaps with the second primary insulating square hole.

[0010] Preferably, the lower shell is provided with edges and corners around it, and arc surfaces are provided at two of the edges and corners.

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

[0012] The current sensor housing structure of the utility model is simple in structure and easy to use. Through the cooperation of the hidden protrusion and the card slot, the upper housing and the lower housing only need one pushing action to be assembled, and no rotational movement or positioning work before installation is required. It is quick and simple, and the assembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the lower shell of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the upper shell and the lower shell of the utility model after being combined;

[0016] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0017] Figure 5 It is a schematic diagram of the side cross-sectional structure of the upper shell and the lower shell of the utility model after being combined;

[0018] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual 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 relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0020] Embodiment 1:

[0021] like Figures 1 to 6 As shown, the utility model provides a current sensor housing structure, comprising an upper housing 1 and a lower housing 2, wherein the upper housing 1 and the lower housing 2 are combined to form a receiving cavity, wherein a coil 3 and a circuit board 4 are arranged in the receiving cavity;

[0022] The outer side of the upper shell 1 is provided with a protrusion 11 , and the inner side of the lower shell 2 is provided with a slot 21 corresponding to the protrusion 11 . The upper shell 1 and the lower shell 2 are connected by the protrusion 11 being inserted into the slot 21 .

[0023] Example:

[0024] like Figures 1 to 6 As shown, the utility model provides a current sensor housing structure, comprising an upper housing 1 and a lower housing 2, wherein the upper housing 1 and the lower housing 2 are combined to form a receiving cavity, wherein a coil 3 and a circuit board 4 are arranged in the receiving cavity;

[0025] The outer side of the upper shell 1 is provided with a protrusion 11 , and the inner side of the lower shell 2 is provided with a slot 21 corresponding to the protrusion 11 . The upper shell 1 and the lower shell 2 are connected by the protrusion 11 being inserted into the slot 21 .

[0026] The shell buckle adopts a design that is integrally formed with the upper shell 1 and the lower shell 2. During the installation process, no additional materials, such as screw fasteners, are required. Therefore, the buckle design realizes a low-cost installation method.

[0027] Furthermore, the installation process of the buckle is very simple, requiring only a push action, without the need for rotational movement or pre-installation positioning work, which is quick and simple, and improves assembly efficiency.

[0028] Traditional buckles are prone to breakage of the part connecting the bottom of the buckle to the main body due to fatigue effects or improper protection. It is difficult to repair the broken buckle device, which affects the qualified rate of the shell. The utility model has a hidden buckle design to better protect the buckle.

[0029] A first primary insulating square hole 12 is provided in the middle of the upper shell 1, and a second primary insulating square hole 22 is provided in the middle of the lower shell 2. The second primary insulating square hole 22 is embedded in the first primary insulating square hole 12, and the first primary insulating square hole 12 and the second primary insulating square hole 22 partially overlap.

[0030] Leakage current paths can be formed on the surface of the insulating material. If these leakage current paths form a conductive path, breakdown will occur. In order to increase the creepage distance, during the design of the housing, the first primary insulating square hole 12 and the second primary insulating square hole 22 are partially overlapped, which can greatly increase the distance of the current flow path, help ensure the reliability and safety of the circuit, and help ensure the quality of the sensor. Creepage distance refers to the shortest path between two conductive parts or between a conductive part and the protective interface of the equipment measured along the insulating surface.

[0031] Furthermore, in another embodiment, the lower housing 2 is provided with corners 23 around its periphery, and two of the corners 23 are provided with arc surfaces 24 .

[0032] After injection molding, the shell will have dents at the wall thickness due to volume shrinkage. This deformation is mainly caused by the inherent characteristics of the plastic material, the inconsistency between the wall thickness and the cooling speed of the outer surface. This deformation not only makes assembly difficult, but also easily causes product size deviations, affecting the product qualification rate. Increasing the thickness of the lower shell corners during the design process can effectively solve the problem of shell deformation after molding.

[0033] According to the description and drawings of the present invention, those skilled in the art can easily manufacture or use the current sensor housing structure of the present invention, and can produce the positive effects recorded in the present invention.

[0034] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0035] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A current sensor housing structure, characterized in that: It comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are combined to form a receiving cavity, and a coil and a circuit board are arranged in the receiving cavity; The outer side of the upper shell is provided with a protrusion, and the inner side of the lower shell is provided with a slot corresponding to the protrusion, and the upper shell and the lower shell are connected by the protrusion being inserted into the slot; A first primary insulating square hole is provided in the middle of the upper shell, and a second primary insulating square hole is provided in the middle of the lower shell. The second primary insulating square hole is embedded in the first primary insulating square hole, and the first primary insulating square hole partially overlaps with the second primary insulating square hole.

2. The current sensor housing structure according to claim 1, characterized in that: The lower shell is provided with edges and corners around its periphery, and two of the edges and corners are provided with arc surfaces.

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