Waterproof puncture current sensor

Abstract

According to the technical scheme, the waterproof puncture current sensor is characterized in that the waterproof puncture current sensor comprises a pincerlike sensor shell and a sensor inner core, the sensor shell comprises a movable part and a fixed part, the sensor shell comprises two groups of mirrored outer shell layers, and outer shell protrusions extend from edge mailboxes of the outer shell layers; the outer shell layer is provided with interval protrusions, and the interval protrusions are close to the outer shell protrusions. A pair of protruding blocks are symmetrically arranged on the rotation center of the end face of the sensor shell, the protruding blocks are provided with coaxial through holes, the through holes are respectively provided with a threaded puncture needle and a threaded positioning rod, and the other end face of the sensor shell is provided with a mirroring protruding block. By means of the outer shell protrusions and the interval protrusions arranged on the outer shell layer, multi-layer protection is achieved, when the outer layer is permeated, the interval protrusions on the inner layer can still provide a good sealing effect, and the sealing performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of puncture current sensor technology, and more specifically to a waterproof puncture current sensor. Background Technology

[0002] Currently, puncture current sensors are non-invasive or micro-invasive sensors used to measure current. They typically make direct contact with the conductor through puncture (piercing the insulation layer) or clamping to achieve real-time monitoring of the current. Their core feature is that installation and measurement can be completed without disconnecting the circuit under test, making them suitable for fields such as power systems, industrial equipment, and new energy.

[0003] However, there are still some defects in the above-mentioned existing technologies. Some common puncture sensor housings are composed of two sets of mounting housings. When used in outdoor environments, external liquids can easily seep into the housing from the interface, causing faults such as short circuits and leakage, which can distort the measurement data and increase safety hazards. When puncturing to obtain power, the cable is prone to relative vibration, which can enlarge the puncture hole and damage the waterproofing. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a waterproof puncture current sensor.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamp-shaped sensor housing and a sensor core are included. The sensor housing includes a movable part and a fixed part. The sensor housing includes two sets of mirrored outer shell layers. Outer shell protrusions extend from the edges of the outer shell layers. The outer shell layers are provided with spaced protrusions, which are close to the outer shell protrusions. A pair of protrusions are symmetrically arranged at the rotation center of the end face of the sensor housing. Each protrusion has a coaxial through hole. A threaded puncture needle and a threaded positioning rod are respectively provided in the through hole. A puncture knob is provided on the outside of the puncture needle, and a positioning knob is provided on the outside of the positioning rod. The positioning rod has a support frame. A clamping pad is provided on each protrusion, which is close to the puncture needle. A mirrored protrusion is provided on the other end face of the sensor housing.

[0006] The present invention is further configured such that: the housing is provided with mounting protrusions and mounting grooves, the mounting protrusions and mounting grooves being close to and spaced from the end faces of the outer shell protrusions.

[0007] The present invention is further configured such that the protrusion is simultaneously disposed on either side of the movable part or the fixed part, and the axis of the through hole is perpendicular to the opening direction of the sensor opening.

[0008] The present invention is further configured such that the protrusion is close to the fixing part.

[0009] The present invention is further configured such that: the connecting ports at both ends of the movable part are provided with connecting protrusions with waterproof protrusions, the fixed part is provided with connecting cavities corresponding to the connecting protrusions, and both connecting cavities at both ends are provided with corresponding waterproof pads A.

[0010] The present invention is further configured such that a waterproof pad B is provided between the spacer protrusion and the outer shell protrusion.

[0011] The present invention is further configured such that: the fixing part is provided with an output interface, the output interface is provided with a waterproof cover, the waterproof cover is provided with a waterproof buckle, and the fixing part is provided with a waterproof buckle groove corresponding to the waterproof buckle.

[0012] In summary, this utility model has the following beneficial effects: the outer shell layer and the spacer layer provide multi-layer protection, ensuring that the internal spacer protrusions can still provide a good sealing effect even if the outer seal fails. The waterproof pad B further improves the sealing performance of this utility model. The waterproof pad A provides a good sealing effect at the opening of the sensor housing. The combination of the two side pressing pads and the support frame ensures that the cable is relatively parallel when installed, avoiding vibration caused by the other end being suspended due to the single-sided pressing setting, and reducing the enlargement of the puncture hole caused by vibration, thus reducing the damage to the waterproof layer. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0014] Figure 2 This is a partially enlarged cross-sectional view at point A in this embodiment;

[0015] Figure 3 This is a schematic diagram of the opening process in this embodiment;

[0016] Reference numerals: 1. Sensor housing; 11. Movable part; 111. Connecting protrusion; 112. Waterproof protrusion; 12. Fixing part; 121. Output interface; 122. Waterproof buckle groove; 123. Connecting cavity; 2. Sensor inner core; 21. Waterproof pad A; 3. Outer shell layer; 31. Outer shell protrusion; 32. Spacer protrusion; 33. Mounting protrusion; 34. Mounting groove; 35. Waterproof pad B; 4. Protruding block; 5. Through hole; 51. Threaded puncture needle; 511. Puncture knob; 512. Pressing pad; 52. Threaded positioning rod; 521. Positioning knob; 522. Support frame; 6. Waterproof cover; 61. Waterproof buckle. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] This embodiment discloses a waterproof puncture current sensor, such as... Figures 1 to 3As shown, the sensor housing includes a clamp-shaped sensor housing 1 and a sensor core 2. The sensor housing 1 includes a movable part 11 and a fixed part 12. The sensor housing 1 includes two sets of mirrored outer shell layers 3. The outer shell layers 3 have outer shell protrusions 31 extending from their edges. The outer shell layers 3 are provided with spacer protrusions 32, which are close to the outer shell protrusions 31. The spacer protrusions 32 provide the sensor housing 1 with two shells, inner and outer. When the outer shell protrusions 31 are exposed to the elements, they may be directly impacted, or exposed to wind and sun, which can easily damage the outer shell layers 3. The spacer protrusions 32 in the inner layer provide a sealing effect even when the outer shell layers 3 are damaged, resulting in better sealing performance. The sensor housing 1 has a pair of symmetrically arranged protrusions 4 at the center of rotation on its end face. The protrusions 4 are provided with coaxial through holes 5. The through holes 5 are respectively provided with threaded piercing needles 51 and threaded positioning rods 52. The through hole 5 makes the threaded positioning rod 52 and the threaded puncture needle 51 coaxial, so that the test cable can be clamped when the threaded positioning rod 52 is pressed down. A puncture knob 511 is provided on the outside of the puncture needle, and a positioning knob 521 is provided on the outside of the positioning rod. The puncture knob 511 and the positioning knob 521 respectively make it easy to rotate the threaded puncture needle 51 and the threaded positioning rod 52. Rotating the puncture knob 511 allows the threaded puncture needle 51 to puncture the test cable. Rotating the positioning knob 521 controls the movement of the positioning rod so that the threaded positioning rod 52 can clamp the test cable. The positioning rod is provided with a support frame 522. The support frame 522 increases the contact area, making the contact more stable and relatively less wobbly when the support frame 522 clamps the cable. The protrusion 4 is provided with a clamping pad 512, which is close to the puncture needle. A mirror protrusion 4 is provided on the other end face of the convex sensor housing 1. The mirrored protrusion 4 provides positioning clamping pads 512 on both ends of the present invention. The clamping pads 512 can provide good positioning support for the cable to be tested from both sides, making the support frame 522 clamp the cable stably and reliably. This ensures that the present invention can remain relatively parallel to the cable during installation, avoiding vibration caused by the other end being suspended due to the single-sided clamping setting, and reducing the enlargement of the puncture hole caused by vibration, which could damage the waterproof layer.

[0019] Furthermore, the housing is provided with mounting protrusions 33 and mounting grooves 34, which are located near the end faces of the outer shell protrusions 31 and spacer protrusions 32. The mounting protrusions 33 and mounting grooves 34 allow the outer shell layer 3 to be well assembled into the sensor housing 1, and the cooperation between the mounting grooves 34 and the mounting protrusions 33 increases the number of sealing surfaces and provides excellent waterproof performance.

[0020] Furthermore, the protrusion 4 is simultaneously positioned on either side of the movable part 11 or the fixed part 12, and the axis of the through hole 5 is perpendicular to the opening direction of the sensor opening. This perpendicular arrangement ensures that the sensor housing 1 will not be pushed open by the reaction force from the cable when the device is pressed, reducing the possibility of seal failure.

[0021] To further improve the design, the protrusion 4 is located near the fixed part 12. The protrusion 4 has a certain weight, and the weight of the protrusion 4 hinders the movement of the movable part 11, causing inconvenience. In addition, the protrusion 4 is provided with a threaded puncture needle 51, and the threaded puncture needle 51 provided in the movable part 11 poses a risk of puncturing workers during movement.

[0022] Further improvements include connecting protrusions 111 with waterproof protrusions 112 at both ends of the movable part 11, and connecting recesses 123 corresponding to the connecting protrusions 111 at both ends of the fixed part 12. Each connecting recess 123 is equipped with a corresponding waterproof pad A21. The waterproof pad A21 is used for sealing; when the sensor housing 1 is closed, the two waterproof pads A21 will come into close contact to form a good sealing surface, ensuring a good waterproof seal at the opening when the device is closed. The close contact between the waterproof protrusions 112 and the waterproof pads A21 further enhances the sealing surface at the opening when the device is closed, resulting in a better waterproof effect.

[0023] Furthermore, a waterproof gasket B35 is provided between the spacer protrusion 32 and the outer shell protrusion 31. The waterproof gasket B35 is in close contact with both the spacer protrusion 32 and the outer shell protrusion 31, forming effective sealing surfaces. This increases the sealing performance of the invention, reduces the possibility of water penetration, and minimizes the risk of water ingress.

[0024] Further improvements include an output interface 121 provided on the fixing part 12, and a waterproof cover 6 provided on the output interface 121. The waterproof cover 6 can block splashing water encountered during use, protecting the output interface 121 from short circuits and data distortion. The waterproof cover 6 is provided with a waterproof buckle 61, and the fixing part 12 is provided with a waterproof groove 122 corresponding to the waterproof buckle 61. The waterproof cover 6 can be easily installed by the cooperation of the waterproof buckle 61 and the waterproof groove 122.

[0025] Working principle of this utility model

[0026] In use, the movable part 11 is opened, and the cable to be tested can easily pass through the opening of the sensor housing 1 and enter the sensor housing 1. When the movable part 11 is closed, the waterproof pad A21 makes tight contact with the sensor housing 1 to form a good sealing layer and achieve a good sealing effect. Rotating the positioning knob 521 near both ends of the sensor housing 1 will cause the threaded positioning rod 52 to rotate, causing the threaded positioning rod 52 to move axially. The moving threaded positioning rod 52 will push the support frame 522 closer to and press the cable to be tested, thus achieving a relatively stable connection between the present invention and the cable. Rotating the piercing knob 511 causes the threaded positioning rod 52 to rotate, and the rotating threaded positioning rod 52 will move axially, piercing the cable to extract power for measurement.

[0027] When the environment is humid, the combination of the two sets of outer shell layers 3 and the waterproof pad B35 can provide good sealing, making it difficult for splashing water and moisture from the outside to enter the interior of the device from the seams. When the outside of the sensor housing 1 is damaged and the seal is broken, the spacer protrusion 32 and the waterproof pad B35 set inside the sensor housing 1 can still play a good sealing role, preventing water from entering the device and causing a short circuit.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof puncture current sensor, comprising a clamp-shaped sensor housing (1) and a sensor core (2), wherein the sensor housing (1) includes a movable part (11) and a fixed part (12), and the sensor housing (1) includes two sets of mirrored outer shell layers (3), characterized in that: The outer shell layer (3) has an upwardly extending outer shell protrusion (31) at its edge. The outer shell layer (3) is provided with a spaced protrusion (32), which is close to the outer shell protrusion (31). A pair of protrusions (4) are symmetrically arranged at the rotation center of the end face of the sensor housing (1). The protrusions (4) are provided with coaxial through holes (5). The through holes (5) are respectively provided with a threaded puncture needle (51) and a threaded positioning rod (52). A puncture knob (511) is provided on the outside of the puncture needle. A positioning knob (521) is provided on the outside of the positioning rod. A support frame (522) is provided on the positioning rod. A pressing pad (512) is provided on the protrusion (4), which is close to the puncture needle. A mirrored protrusion (4) is provided on the other end face of the sensor housing (1).

2. The waterproof puncture current sensor according to claim 1, characterized in that: The housing is provided with mounting protrusions (33) and mounting grooves (34), which are close to the end faces of the outer shell protrusions (31) and the spacer protrusions (32).

3. A waterproof puncture current sensor according to claim 1, characterized in that: The protrusion (4) is simultaneously provided on either side of the movable part (11) or the fixed part (12), and the axis of the through hole (5) is perpendicular to the opening direction of the sensor opening.

4. A waterproof puncture current sensor according to claim 3, characterized in that: The protrusion (4) is close to the fixing part (12).

5. A waterproof puncture current sensor according to claim 1, characterized in that: The movable part (11) has a connecting protrusion (111) with a waterproof protrusion (112) at both ends of the connecting port, and the fixed part (12) has a connecting cavity (123) corresponding to the connecting protrusion (111). Both ends of the connecting cavity (123) are provided with a corresponding waterproof pad A (21).

6. A waterproof puncture current sensor according to claim 1, characterized in that: A waterproof pad B (35) is provided between the spacer protrusion (32) and the outer shell protrusion (31).

7. A waterproof puncture current sensor according to claim 1, characterized in that: The fixing part (12) is provided with an output interface (121), the output interface (121) is provided with a waterproof cover (6), the waterproof cover (6) is provided with a waterproof buckle (61), and the fixing part (12) is provided with a waterproof buckle groove (122) corresponding to the waterproof buckle (61).

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