A positioning high-precision current detection probe

Abstract

The present invention belongs to the technical field of current detection, and specifically relates to a positioning type high-precision current detection probe, comprising a probe body installed at one end of a connecting wire, a heat dissipation mechanism being provided on the inner side of the probe body, a fixed seat being fixedly installed on the lower side of one end of the probe body, a sliding seat being installed on the upper side of one end of the probe body through a sliding mechanism, a positioning mechanism being provided on the outer sides of the sliding seat and the fixed seat, one end of each of the fixed seat and the sliding seat being provided with a detection ring through a connecting mechanism; the sliding mechanism comprises a sliding groove provided on the probe body, and a sliding column slidably installed in the sliding groove; through the designed positioning mechanism, the fixed seat and the sliding seat are clamped on the wire during use, and detection is performed through the detection ring sleeve, and at the same time, the sliding seat drives the rotating splint to rotate along with it when it slides, so that the air bag in the rotating splint and the fixed splint can be stably clamped on the wire in cooperation with each other, thereby ensuring the stability of the probe during monitoring during use.

Description

Technical Field

[0001] The invention belongs to the technical field of current detection, and in particular relates to a positioning high-precision current detection probe. Background Art

[0002] A current probe is a magnetic ring designed based on the Faraday principle to measure interference current signals in a conductor. It is essentially a transformer with 1 turn. A current probe can be used to measure the current flowing through a conductor. Current probes are divided into AC / DC current probes and AC current probes. The former can measure both DC and AC currents, while the latter can only measure AC currents. The current flowing through a conductor causes an electromagnetic flux field to form around the conductor. The current probe is designed to sense the field strength of this magnetic flux field and convert it into a corresponding voltage for measurement using an oscilloscope. This allows the current waveform to be viewed and analyzed using an oscilloscope. When used in conjunction with the voltage measurement function of an oscilloscope, the current probe also allows for various power measurements.

[0003] When in use, the current probe is placed on the wire for measurement. During measurement, many probes are not fixed on the wire. During detection, the force of shaking and movement will cause measurement errors, resulting in poor current detection accuracy. Therefore, it is necessary to design a positioning high-precision current detection probe to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide a positioning-type high-precision current detection probe to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a positioning-type high-precision current detection probe, comprising a probe body mounted at one end of a connecting line, a heat dissipation mechanism provided on the inner side of the probe body, a fixed seat fixedly mounted on the lower side of one end of the probe body, a sliding seat mounted on the upper side of one end of the probe body via a sliding mechanism, positioning mechanisms provided on the outer sides of the sliding seat and the fixed seat, and a detection ring provided on one end of each of the fixed seat and the sliding seat via a connecting mechanism;

[0006] The sliding mechanism includes a sliding groove provided on the probe body, a sliding post slidably installed in the sliding groove, and a limit assembly installed on the upper surface of the probe body, one end of the sliding seat is fixedly connected to the sliding post, a positioning slot is provided on the surface of the sliding seat, the sliding seat is fixed to the probe body through the positioning slot and the limit assembly, and the inner side of one end of the positioning slot is set as an inclined surface;

[0007] The positioning mechanism includes a fixed splint fixedly mounted outside the fixed seat and a rotating splint rotatably mounted on the fixed splint. A connecting seat is provided on the upper side of the rotating splint, a connecting rod is fixedly mounted on one end of the connecting seat, a mounting seat is provided at one end of the sliding seat, a mounting groove is provided on the inner side of the mounting seat, and one end of the connecting rod is slidably mounted in the mounting groove.

[0008] Preferably, the limiting assembly includes a pulling column slidably mounted on the probe body and a pulling plate fixedly mounted on one end of the pulling column, a pressure plate fixedly mounted on the lower end of the pulling column, a positioning plug fixedly mounted on the lower side of the pressure plate, springs fixedly mounted at both ends of the pressure plate, and one end of the spring is fixed in the probe body.

[0009] Preferably, a receiving groove is provided at a position corresponding to the mounting seat at one end of the probe body, and the shape of the mounting groove is set to be L-shaped.

[0010] Preferably, one side of the lower side of the positioning plug is set to be arc-shaped, and the inner side of one end of the positioning slot corresponding to the position of the positioning plug is set to be an inclined surface.

[0011] Preferably, the heat dissipation mechanism includes a ventilation channel opened in the probe body, an air outlet opened on the outside of one end of the probe body and an air inlet opened on the fixed seat, the air inlet and the air outlet are respectively connected to the two ends of the ventilation channel, a ventilation fan is installed inside the air outlet, and a heat-conducting component is installed on the inner side of the ventilation channel at the position corresponding to the detection element.

[0012] Preferably, the heat conducting assembly includes a graphite film mounted on the element, a carbon fiber layer mounted on the graphite film, a heat conducting plate mounted on the carbon fiber layer, and a heat sink disposed on the heat conducting plate.

[0013] Preferably, the cross-sectional shapes of the rotating splint and the fixed splint are both set to be arc-shaped, and an airbag is provided on the inner side of the rotating splint.

[0014] Preferably, one end of the sliding seat and one end of the fixed seat are both provided with a detection ring, the detection ring in the sliding seat is plate-shaped, and the detection ring in the fixed seat is arc-shaped.

[0015] Preferably, the connecting mechanism includes a positioning head and a fixing head arranged at both ends of the detection ring, one end of the positioning head is engaged in the fixing seat, and one end of the fixing head is inserted into one end of the fixing seat and fixed to one end of the fixing seat by a fixing screw.

[0016] Preferably, one end of the air inlet is communicated with the location where the detection ring is installed.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the designed positioning mechanism, the fixed seat and the sliding seat are clamped on the wire during use, and the detection is performed through the detection ring. At the same time, when the sliding seat slides, the rotating splint is driven to rotate accordingly, so that the air bag in the rotating splint and the fixed splint can be stably clamped on the wire, ensuring the stability of the probe during monitoring.

[0019] 2. Through the designed heat dissipation mechanism, when in use, the ventilation fan of the heat dissipation mechanism runs to allow air to enter from the air outlet and take the heat out from the probe body. The heat generated by the internal components during measurement can be quickly dissipated.

[0020] 3. Through the designed connecting mechanism, the detection ring is installed through the connecting mechanism during use, which is more convenient and quick during installation, and when maintenance is needed later, the connecting mechanism can be quickly removed and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the limit assembly of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the limit assembly of the present invention;

[0024] Figure 4 For the present invention Figure 1 A in the middle is an enlarged structural diagram;

[0025] Figure 5 It is a schematic structural diagram of the heat dissipation mechanism of the present invention;

[0026] Figure 6 Schematic diagram of the heat conduction component structure of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the connecting mechanism of the present invention;

[0028] In the figure: 1. Probe body; 11. Connecting wire; 12. Fixed seat; 13. Sliding seat; 14. Detection ring; 2. Heat dissipation mechanism; 21. Air outlet; 22. Ventilation fan; 23. Ventilation channel; 24. Heat conduction component; 25. Air inlet; 26. Graphite film; 27. Carbon fiber layer; 28. Heat conduction plate; 29. Heat sink; 3. Sliding mechanism; 31. Sliding groove; 32. Sliding column; 33. Positioning slot; 34. Limiting assembly; 341. Pulling plate; 342. Pulling column; 343. Pressing plate; 344. Positioning plug; 345. Spring; 4. Positioning mechanism; 41. Fixed splint; 42. Rotating splint; 43. Airbag; 44. Connecting seat; 45. Connecting rod; 46. Mounting seat; 47. Mounting groove; 5. Connecting mechanism; 51. Positioning head; 52. Fixed head; 53. Fixing screw DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0030] See also Figures 1 to 7The present invention provides a technical solution: a positioning type high-precision current detection probe, comprising a probe body 1 installed at one end of a connecting line 11, a heat dissipation mechanism 2 is provided on the inner side of the probe body 1, a fixed seat 12 is fixedly installed on the lower side of one end of the probe body 1, a sliding seat 13 is installed on the upper side of one end of the probe body 1 through a sliding mechanism 3, a positioning mechanism 4 is provided on the outer sides of the sliding seat 13 and the fixed seat 12, and a detection ring 14 is provided on one end of the fixed seat 12 and the sliding seat 13 through a connecting mechanism 5; the sliding mechanism 3 includes a sliding groove 31 provided on the probe body 1, a sliding member 12 and a sliding member 13 slidably installed in the sliding groove 31 The sliding post 32 and the limiting component 34 installed on the upper surface of the probe body 1, one end of the sliding seat 13 is fixedly connected to the sliding post 32, and a positioning groove 33 is opened on the surface of the sliding seat 13. The sliding seat 13 is fixed to the probe body 1 through the positioning groove 33 and the limiting component 34. The inner side of one end of the positioning groove 33 is set as an inclined surface. When the sliding seat 13 slides, the arc on the positioning plug 344 and the inclined surface of the positioning groove 33 can directly push and press down the positioning plug 344, so that the sliding seat 13 can slide stably, and after the sliding is completed, the positioning plug 344 is engaged and limited by the positioning groove 33 to avoid repeated The limit assembly 34 includes a pulling column 342 slidably mounted on the probe body 1 and a pulling plate 341 fixedly mounted at one end of the pulling column 342. A pressing plate 343 is fixedly mounted on the lower end of the pulling column 342, and a positioning plug 344 is fixedly mounted on the lower side of the pressing plate 343. Springs 345 are fixedly mounted at both ends of the pressing plate 343. One end of the spring 345 is fixed in the probe body 1. When in use, the spring 345 pushes the pressing plate 343 and the positioning plug 344 to engage in the positioning slot 33 for positioning; the positioning mechanism 4 includes a fixed splint 41 fixedly mounted outside the fixing seat 12 and a rotatable mounting A rotating splint 42 is mounted on the fixed splint 41, and a connecting seat 44 is provided on the upper side of the rotating splint 42. A connecting rod 45 is fixedly mounted on one end of the connecting seat 44. A mounting seat 46 is provided on one end of the sliding seat 13. A mounting groove 47 is provided on the inner side of the mounting seat 46. One end of the connecting rod 45 is slidably mounted in the mounting groove 47. The fixed splint 41 is supported on the electric wire, and the mounting seat 46 and the mounting groove 47 on the sliding seat 13 drive the connecting rod 45 and the connecting seat 44 to move, thereby driving the rotating splint 42 to rotate on the fixed splint 41, so that the fixed splint 41 and the rotating splint 42 are clamped and fixed on the electric wire.

[0031] Further, see Figures 1 to 7The position of the positioning plug 344 is set to an inclined surface on the inner side of the positioning slot 33, and the positioning plug 344 can be directly pushed down to move when the sliding seat 13 slides through the arc on the positioning plug 344 and the inclined surface of the positioning slot 33; the cross-sectional shape of the rotating splint 42 and the fixed splint 41 are both set to an arc, and the inner side of the rotating splint 42 is provided with an air bag 43, and the fixed splint 41 is supported on the wire, and the fixed splint 41 and the rotating splint 42 are clamped and fixed on the wire with the air bag 43; one end of the sliding seat 13 and one end of the fixed seat 12 are both provided with a detection ring 14, the detection ring 14 in the sliding seat 13 is plate-shaped, and the detection ring 14 in the fixed seat 12 is arc-shaped, which is convenient for clamping on the wire for detection when in use.

[0032] From the above description, it can be seen that the present invention has the following beneficial effects: when in use, it is clamped on the wire by the fixed seat 12 and the sliding seat 13, and is detected by the detection ring 14. At the same time, when the sliding seat 13 slides, it drives the rotating clamping plate 42 to rotate accordingly, so that the airbag 43 in the rotating clamping plate 42 and the fixed clamping plate 41 can be stably clamped on the wire, ensuring the stability of the probe during monitoring when in use. Example

[0033] See also Figures 1 to 7 As shown, on the basis of embodiment 1, the present invention provides a technical solution: the heat dissipation mechanism 2 includes a ventilation channel 23 provided in the probe body 1, an air outlet 21 provided on the outside of one end of the probe body 1 and an air inlet 25 provided on the fixing seat 12, the air inlet 25 and the air outlet 21 are respectively connected to the two ends of the ventilation channel 23, a ventilation fan 22 is installed inside the air outlet 21, and a heat conducting component 24 is installed on the inner side of the ventilation channel 23 corresponding to the position of the detection element. The air flow generated by the operation of the ventilation fan 22 enters the ventilation channel 23 from the air inlet 25 and is discharged from the air outlet 21 to take away the heat for dissipation; the heat conducting component 24 includes a graphite film 26 installed on the element, a carbon fiber layer 27 installed on the graphite film 26, a heat conducting plate 28 installed on the carbon fiber layer 27 and a heat sink 29 provided on the heat conducting plate 28, and the graphite film 26 and the carbon fiber layer 27 cooperate to uniformly conduct heat so that the heat is evenly conducted away for dissipation and cooperate with the heat conducting plate 28 and the heat sink 29 to accelerate the heat dissipation effect.

[0034] When using the heat dissipation mechanism 2 of the above technical solution, the ventilation fan 22 of the heat dissipation mechanism 2 is operated to allow air to enter from the air outlet 21 and take the heat out from the probe body 1. The heat generated by the internal components during measurement can be quickly dissipated.

[0035] Further, see Figure 1 and Figure 7 The connecting mechanism 5 includes a positioning head 51 and a fixed head 52 arranged at both ends of the detection ring 14. One end of the positioning head 51 is engaged in the fixing seat 12, and one end of the fixed head 52 is inserted into one end of the fixing seat 12 and fixed to one end of the fixing seat 12 by a fixing screw 53. During installation, the positioning head 51 is first installed in the fixing seat 12, and then the fixed head 52 is rotated to be inserted and the fixing screw 53 is screwed on to fix it; one end of the air inlet 25 is connected to the installation position of the detection ring 14, which facilitates the air flow to pass through and assist in dissipating heat at the position of the detection ring 14 during use.

[0036] The connecting mechanism 5 of the above technical solution is used to install the detection ring 14 during use, which is more convenient and quick during installation. When maintenance is required later, the connecting mechanism 5 can be quickly removed and replaced.

[0037] The working principle and use process of the present invention are as follows: when in use, the detection ring 14 is placed on the wire, and then the sliding column 32 is moved to drive the sliding seat 13 to slide. The detection ring 14 on the sliding seat 13 and the fixed seat 12 are clamped on the wire. When the sliding seat 13 slides, the arc-shaped positioning plug 344 and the inclined surface of the positioning slot 33 can be directly pushed to press down the positioning plug 344, so that the sliding seat 13 can slide stably. After the sliding is completed, the positioning slot 33 is used to engage the positioning plug 344 to prevent it from resetting. At the same time, the fixed splint 41 is supported on the wire, and the mounting seat 46 and the mounting slot 47 on the sliding seat 13 drive the connecting rod 45 and the connecting seat 44 moves, thereby driving the rotating splint 42 to rotate on the fixed splint 41, so that the fixed splint 41 and the rotating splint 42 are clamped and fixed on the wire in cooperation with the air bag 43, so that the probe is installed on the wire to make the fixation more stable, convenient for positioning detection, and ensure more accurate during detection. When the detection is used, the components in the probe body 1 generate heat, which can be discharged from the air outlet 21 through the air inlet 25 to dissipate the heat, and the graphite film 26 and the carbon fiber layer 27 have a uniform heat conduction effect, so that the heat is evenly conducted away for heat dissipation, and the heat conduction plate 28 and the heat sink 29 are cooperated to accelerate the heat dissipation effect.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A positioning high-precision current detection probe, comprising a probe body (1) mounted at one end of a connecting line (11), characterized in that: A heat dissipation mechanism (2) is provided on the inner side of the probe body (1), a fixed seat (12) is fixedly installed on the lower side of one end of the probe body (1), a sliding seat (13) is installed on the upper side of one end of the probe body (1) via a sliding mechanism (3), a positioning mechanism (4) is provided on the outer sides of the sliding seat (13) and the fixed seat (12), and a detection ring (14) is provided on one end of each of the fixed seat (12) and the sliding seat (13) via a connecting mechanism (5); The sliding mechanism (3) comprises a sliding groove (31) provided on the probe body (1), a sliding column (32) slidably installed in the sliding groove (31), and a limiting assembly (34) installed on the upper surface of the probe body (1); one end of the sliding seat (13) is fixedly connected to the sliding column (32); a positioning slot (33) is provided on the surface of the sliding seat (13); the sliding seat (13) is fixed to the probe body (1) through the positioning slot (33) and the limiting assembly (34); and the inner side of one end of the positioning slot (33) is set as an inclined surface; The positioning mechanism (4) comprises a fixed clamping plate (41) fixedly mounted on the outside of the fixed seat (12) and a rotating clamping plate (42) rotatably mounted on the fixed clamping plate (41), a connecting seat (44) is provided on the upper side of the rotating clamping plate (42), a connecting rod (45) is fixedly mounted on one end of the connecting seat (44), a mounting seat (46) is provided on one end of the sliding seat (13), a mounting groove (47) is provided on the inner side of the mounting seat (46), and one end of the connecting rod (45) is slidably mounted in the mounting groove (47).

2. The positioning high-precision current detection probe according to claim 1, characterized in that: The limiting assembly (34) includes a pulling column (342) slidably mounted on the probe body (1) and a pulling plate (341) fixedly mounted on one end of the pulling column (342), a pressure plate (343) fixedly mounted on the lower end of the pulling column (342), a positioning plug (344) fixedly mounted on the lower side of the pressure plate (343), and springs (345) fixedly mounted at both ends of the pressure plate (343), one end of the spring (345) being fixed in the probe body (1).

3. The positioning high-precision current detection probe according to claim 1, characterized in that: A receiving groove is provided at one end of the probe body (1) at a position corresponding to the mounting seat (46), and the mounting groove (47) is configured to be L-shaped.

4. The positioning high-precision current detection probe according to claim 2, characterized in that: One side of the lower side of the positioning plug (344) is configured as an arc, and the inner side of one end of the positioning slot (33) corresponding to the position of the positioning plug (344) is configured as an inclined surface.

5. The positioning high-precision current detection probe according to claim 1, characterized in that: The heat dissipation mechanism (2) comprises a ventilation channel (23) provided in the probe body (1), an air outlet (21) provided on the outside of one end of the probe body (1), and an air inlet (25) provided on the fixing seat (12), wherein the air inlet (25) and the air outlet (21) are respectively connected to the two ends of the ventilation channel (23), a ventilation fan (22) is installed inside the air outlet (21), and a heat conducting component (24) is installed on the inner side of the ventilation channel (23) at a position corresponding to the detection element.

6. The positioning high-precision current detection probe according to claim 5, characterized in that: The heat conducting component (24) comprises a graphite film (26) mounted on the element, a carbon fiber layer (27) mounted on the graphite film (26), a heat conducting plate (28) mounted on the carbon fiber layer (27), and a heat sink (29) arranged on the heat conducting plate (28).

7. The positioning high-precision current detection probe according to claim 1, characterized in that: The cross-sectional shapes of the rotating clamping plate (42) and the fixed clamping plate (41) are both arranged to be arc-shaped, and an air bag (43) is arranged on the inner side of the rotating clamping plate (42).

8. The positioning high-precision current detection probe according to claim 1, characterized in that: One end of the sliding seat (13) and one end of the fixed seat (12) are both provided with a detection ring (14); the detection ring (14) in the sliding seat (13) is plate-shaped, and the detection ring (14) in the fixed seat (12) is arc-shaped.

9. The positioning high-precision current detection probe according to claim 5, characterized in that: The connecting mechanism (5) comprises a positioning head (51) and a fixing head (52) arranged at both ends of the detection ring (14), one end of the positioning head (51) is engaged in the probe body (1), and one end of the fixing head (52) is inserted into one end of the probe body (1) and fixed to one end of the probe body (1) by a fixing screw (53).

10. The positioning high-precision current detection probe according to claim 9, characterized in that: One end of the air inlet (25) is in communication with the location where the detection ring (14) is installed.

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