Electricity utilization monitoring device

Abstract

The utility model relates to the technical field of circuit monitoring, in particular to a power utilization monitoring device, which comprises an upper shell and a lower shell which are connected with each other, a cavity is formed between the upper shell and the lower shell, and a circuit board is mounted in the cavity; the end face of the upper shell is provided with an upper pipe sleeve extending into the upper shell, the lower portion of the lower shell is fixedly connected with a lower pipe sleeve opposite to the upper pipe sleeve, and the outer side of the upper pipe sleeve is sleeved with a current transformer. According to the utility model, through the design of adding the two clamping parts, a wire with a smaller diameter can be clamped and positioned, so that when the wire is arranged in the upper and lower sleeving parts in a penetrating manner, the wire can be clamped and restrained through the centering clamping force of the clamping arms, and the wire can be centered on the inner sides of the sleeving parts to the maximum extent; and when the diameter of the wire is small, the problem that the wire deviates to one side in the upper pipe sleeve and the lower pipe sleeve to influence the detection accuracy can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of circuit monitoring technology, and in particular to an electricity monitoring device. Background Technology

[0002] In power systems, real-time circuit monitoring is a crucial means of ensuring stable system operation and preventing faults. Existing electrical monitoring devices typically include a casing, a circuit board, and connecting components. The circuit board integrates electrical parameter measurement circuits, signal processing circuits, and power supply circuits. The electrical parameter measurement circuits and signal processing circuits are electrically connected to the power supply circuit. Current transformers are used to detect conductor current for circuit monitoring. For a specific example, see the end-point electrical monitoring device disclosed in Chinese Patent Publication No. "CN221977002U".

[0003] However, existing electrical monitoring devices have a significant drawback. During the actual detection process, the wire needs to pass through a through-hole on the housing. Since the inner diameter of the through-hole is constant, when the wire diameter is small, the wire is prone to shifting and swaying inside the through-hole, failing to maintain a roughly centered position. This shift directly affects the accuracy of the current transformer's detection, thereby reducing the performance of the entire monitoring system. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology, such as the wire easily shifting and swinging inside the wire hole when the wire diameter is small, and it is impossible to keep it in a roughly centered position, so as to propose an electricity monitoring device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design an electricity monitoring device, including an upper shell and a lower shell connected to each other, with a cavity formed between the upper shell and the lower shell, and a circuit board installed in the cavity;

[0007] The upper shell has an upper sleeve extending into its interior on its end face, and a lower sleeve opposite to the upper sleeve is fixedly connected to the lower shell. A current transformer is sleeved on the outer side of the upper sleeve.

[0008] Clamping components for positioning wires are connected to the ends of both the upper and lower sleeves.

[0009] Furthermore, the clamping component includes a sleeve portion, which is detachably connected to the upper sleeve and the lower sleeve.

[0010] A tapered tube is also fixedly installed on the inner side of the sleeve. Several deformation grooves are opened on the outer periphery of the tapered tube, and a clamping arm is formed on the tapered tube by every two deformation grooves.

[0011] Furthermore, the bottom of the clamping arm has an outwardly bent guide portion, and an elastic ring is sleeved between the outer sides of the plurality of guide portions.

[0012] Furthermore, the sleeve portion is threadedly connected to the upper sleeve and the lower sleeve.

[0013] Furthermore, it also includes a wire fixing assembly, which is installed at the upper end of the upper shell and is used to clamp and fix the wire.

[0014] Furthermore, the wire fixing assembly includes a bracket fixed to the upper end of the upper shell. The bracket has a Z-shaped structure, and an elastic sheet is fixedly connected to the upper end of the bracket. A clamping space is formed between the elastic sheet and the bracket.

[0015] The upper end of the bracket is threaded with an adjusting bolt, and a guide groove is provided on the end face of the elastic sheet. The end of the adjusting bolt abuts against the outer side of the elastic sheet.

[0016] The present invention provides an electrical monitoring device with the following advantages: By adding two clamping components, the present invention can clamp and position small-diameter wires. This ensures that when the wire passes through the inside of the upper and lower sleeves, the clamping force of the clamping arms can constrain the wire, maximizing the centered placement of the wire inside the sleeve. When the wire diameter is small, it can prevent the wire from shifting to one side inside the upper and lower sleeves, thus affecting the accuracy of the detection. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is an exploded structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the clamping component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the wire fixing assembly structure of this utility model.

[0022] In the diagram: 1. Upper shell; 11. Upper tube sleeve; 2. Lower shell; 21. Lower tube sleeve; 3. Circuit board; 4. Current transformer; 5. Wire; 6. Clamping component; 61. Sleeve part; 62. Tapered tube; 63. Deformation groove; 64. Clamping arm; 65. Guide part; 66. Elastic ring; 7. Wire fixing assembly; 71. Bracket; 72. Elastic sheet; 73. Guide groove; 74. Adjusting bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-5 As an embodiment of this utility model, an electricity monitoring device is disclosed. Specifically, the device includes an upper shell 1 and a lower shell 2 that are connected to each other. The upper shell 1 and the lower shell 2 form a cavity, and a circuit board 3 is installed in the cavity.

[0025] The upper shell 1 has an upper sleeve 11 extending into it on its end face. The lower shell 2 has a lower sleeve 21 fixedly connected to it, opposite to the upper sleeve 11. A current transformer 4 is sleeved on the outside of the upper sleeve 11. In this embodiment, the circuit board 3 includes an electrical parameter measurement circuit, a signal processing circuit, and a power supply circuit. The current transformer 4 and the power supply circuit are electrically connected. The current of the conductor 5 is detected by the current transformer 4. The electrical parameter measurement circuit transmits the acquired electrical parameters to the signal processing circuit for processing. Its specific working principle has been disclosed in the prior art and will not be elaborated here.

[0026] Clamping components 6 for positioning the wire 5 are connected to the ends of the upper sleeve 11 and the lower sleeve 21. That is, in this embodiment, the wire 5 passes between the upper sleeve 11 and the lower sleeve 21. The clamping components 6 constrain and position the two ends of the wire 5 to ensure that the wire 5 can be centered inside the upper sleeve 11 and the lower sleeve 21 to ensure the detection accuracy of the current transformer 4.

[0027] In some embodiments, the clamping component 6 of the present invention includes a sleeve portion 61, which is detachably connected to the upper tube sleeve 11 and the lower tube sleeve 21. Specifically, the sleeve portion 61 is threadedly connected to the upper tube sleeve 11 and the lower tube sleeve 21.

[0028] A tapered tube 62 is also fixedly installed on the inner side of the sleeve 61. The tapered tube 62 can be made of plastic. Several deformation grooves 63 are opened on the outer periphery of the tapered tube 62. Every two deformation grooves 63 form a clamping arm 64 on the tapered tube 62.

[0029] In this embodiment, multiple clamping arms 64 are designed to clamp the wire 5. When the wire 5 passes through the inside of the upper and lower sleeves 61, the clamping force of the clamping arms 64 can constrain the wire 5, so as to ensure that the wire 5 can be centered to the maximum extent inside the sleeve 61. When the diameter of the wire 5 is small, it can prevent the wire 5 from shifting to one side inside the upper sleeve 11 and the lower sleeve 21, which would affect the detection accuracy.

[0030] Based on the above embodiments, the bottom of the clamping arm 64 in this embodiment has an outwardly bent guide portion 65, and an elastic ring 66 is sleeved between the outer sides of the plurality of guide portions 65. The elastic ring 66 is preferably a rubber ring. The design of the guide portion 65 is used to avoid the problem of the right angle surface getting stuck on the outside of the wire 5 during the wire 5 threading process, which would prevent the wire 5 from moving freely. Preferably, the guide portion 65 and the outward fold of the clamping arm 64 in this embodiment should be set as arc surfaces to reduce the sliding resistance with the wire 5.

[0031] Preferably, this embodiment also includes a wire fixing component 7, which is installed on the upper end of the upper shell 1 and is used to clamp and fix the wire 5.

[0032] Specifically, in this embodiment, the wire fixing assembly 7 includes a bracket 71 fixed to the upper end of the upper shell 1. The bracket 71 has a Z-shaped structure, and an elastic sheet 72 is fixedly connected to the upper end of the bracket 71. A clamping space is formed between the elastic sheet 72 and the bracket 71. In this embodiment, the elastic sheet 72 can be made of stainless steel or silicone.

[0033] The upper end of the bracket 71 is threaded with an adjusting bolt 74, and a guide groove 73 is provided on the end face of the elastic sheet 72. The end of the adjusting bolt 74 abuts against the outer side of the elastic sheet 72.

[0034] In this embodiment, the wire fixing component 7 is designed to connect and fix the wire 5 so that when it is necessary to detect the middle of the vertical wire 5, the entire device can be fixed and suspended on the wire 5 by the wire fixing component 7.

[0035] During installation, the wire 5 is first threaded between the bracket 71 and the elastic piece 72. At this time, the adjusting bolt 74 can be turned to move the elastic piece 72 toward the bracket 71 until the elastic piece 72 and the bracket 71 clamp the wire 5. The entire device can then be fixed in position as a pair without interfering with the movement of the clamping component 6.

[0036] In summary, by adding two clamping components 6, this utility model can clamp and position smaller diameter wires 5. This ensures that when the wire 5 passes through the inside of the upper and lower sleeves 61, the clamping force of the clamping arm 64 can constrain the wire 5, maximizing its central positioning inside the sleeve 61. When the diameter of the wire 5 is small, it can prevent the wire 5 from shifting to one side inside the upper sleeve 11 and lower sleeve 21, thus avoiding the problem of affecting the accuracy of detection.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electric power monitoring device comprising an upper housing (1) and a lower housing (2) connected to each other, characterized in that: The upper shell (1) and the lower shell (2) constitute a cavity, and a circuit board (3) is installed in the cavity; The upper shell (1) has an upper sleeve (11) extending to the inside thereof on the end face, and the lower shell (2) is fixedly connected with a lower sleeve (21) opposite to the upper sleeve (11), and the current transformer (4) is sleeved on the outside of the upper sleeve (11); The end portions of the upper sleeve (11) and the lower sleeve (21) are connected with clamping components (6) for positioning the wires (5).

2. The power monitoring device of claim 1, wherein: The clamping components (6) include sleeve portions (61) which are detachably connected with the upper sleeve (11) and the lower sleeve (21). A conical tube (62) is fixedly installed on the inside of the sleeve portion (61), and a plurality of deformation grooves (63) are formed on the outer periphery of the conical tube (62), and each two deformation grooves (63) form a clamping arm (64) on the conical tube (62).

3. A power monitoring device according to claim 2, wherein: The bottom of the clamping arm (64) is provided with an outwardly bent guide portion (65), and a plurality of elastic rings (66) are sleeved between the outside of the guide portions (65).

4. The power monitoring device of claim 2, wherein: The sleeve portion (61) is threadedly connected with the upper sleeve (11) and the lower sleeve (21).

5. The power monitoring device of claim 1, wherein: A wire fixing assembly (7) is further included, which is installed on the upper end of the upper shell (1) and is used for clamping and fixing the wires (5).

6. A power monitoring device according to claim 5, wherein: The wire fixing assembly (7) includes a bracket (71) fixed on the upper end of the upper shell (1), the bracket (71) is in Z-shaped structure, an elastic sheet (72) is fixedly connected to the upper end of the bracket (71), and a clamping space is formed between the elastic sheet (72) and the bracket (71); The upper end of the bracket (71) is threadedly connected with an adjusting bolt (74), a guide groove (73) is formed on the end face of the elastic sheet (72), and the end portion of the adjusting bolt (74) abuts against the outside of the elastic sheet (72).

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