Integrated voltage and current acquisition device matched with intelligent monitoring of low-voltage transformer area

Abstract

The invention discloses an integrated voltage and current acquisition device matched with intelligent monitoring of a low-voltage transformer area, and the device comprises a low-voltage monitoring terminal, the low-voltage monitoring terminal is provided with a wiring terminal, the wiring terminal is connected with a detection line, the detection line is connected with at least one puncture flexible Rogowski coil mutual inductor, and the puncture flexible Rogowski coil mutual inductor is connected with the low-voltage monitoring terminal. The invention relates to the technical field of electric power monitoring, and the integrated voltage and current acquisition device cooperating with intelligent monitoring of a low-voltage transformer area adopts integrated voltage puncture acquisition and current flexible acquisition, integrates voltage, current and temperature acquisition functions on a puncture flexible Rogowski coil mutual inductor, is small and simple in structure, and is convenient to use. The device is suitable for wiring environments of low-voltage cabinets of different sizes, is matched with various cable diameters, is stable in data acquisition, supports live-line rapid installation, can wrap a cable puncture position in a completely sealed manner through buckling and pulling connection, improves the structural sealing performance, and is convenient and rapid to install.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power monitoring, and in particular to an integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas. Background Art

[0002] In recent years, with the rapid development of low-voltage distribution networks, in order to actively promote the transparency and digitalization of low-voltage distribution networks, as an important part of improving the situational awareness capabilities of low-voltage distribution networks, the massive data collection of low-voltage smart substations relies on reliable on-site hardware support.

[0003] At present, the data collection of low-voltage branch monitoring terminals is distributed voltage and current. The devices are large, not fixed, and complex to install. They are severely restricted by the space in the cable room and are prone to problems such as inability to install and poor contact. There may also be a risk of electric shock, which greatly affects the data quality of real-time monitoring of branch operation.

[0004] Flexible Rogowski coils have also been widely used in modern current detection processes due to their high flexibility, anti-interference ability, fast response speed and excellent linearity. However, since flexible Rogowski coil current transformers are usually used for current monitoring and have no voltage detection function, in later improvements, the puncture power supply voltage detection function was introduced into the flexible Rogowski coil current transformer, enabling it to monitor voltage and current at the same time.

[0005] Based on the above, at this stage, the application of flexible Rogowski coils with punctures in the intelligent monitoring of low-voltage areas can effectively save the installation space of voltage and current monitoring equipment, and it is more flexible and convenient to use. However, during the installation and use of flexible Rogowski coils with punctures at this stage, due to the presence of the puncture device, the puncture device needs to pierce the outer layer of the cable in order to obtain electricity.

[0006] Therefore, after installation, the position of the Rogowski coil transformer is usually kept fixed by gluing with glue. However, gluing can easily cause the contact position of the coil transformer to become loose. Secondly, the current snap-on structure often adopts an external wrapping method, which cannot effectively protect the puncture part of the cable from water. In view of this, in-depth research was conducted on the above-mentioned problems, which led to this case. Summary of the invention

[0007] In view of the deficiencies of the prior art, the present invention provides an integrated voltage and current acquisition device for cooperating with the intelligent monitoring of low-voltage areas, which solves the existing background technology problems.

[0008] To achieve the above purpose, the present invention is implemented through the following technical solutions: an integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas, including a low-voltage monitoring terminal, a wiring terminal is provided on the low-voltage monitoring terminal, a detection line is connected to the wiring terminal, and at least one puncture flexible Rogowski coil transformer is connected to the detection line.

[0009] The puncture-type flexible Rogowski coil mutual inductor is composed of a connector, a data line extending from the connector, and a flexible coil, wherein the data line is connected to the detection line;

[0010] The connector is wrapped with an integration box on the outside, a connection seat is provided on one side of the integration box, one side of the integration box is fixedly connected to one end of the flexible coil, and an open end of the flexible coil is provided with a movable joint connected to the connection seat;

[0011] The bottom of the integration box is provided with a docking seat to contact the detection cable, and the bottom of the integration box is provided with a wrapped buckle structure, and the wrapped buckle structure cooperates with the docking seat to wrap and clamp the detection cable;

[0012] The puncture-type flexible Rogowski coil mutual inductor further includes a power-taking detection probe, which is mounted on a connection base, and penetrates through the outer skin of the detection cable and contacts with the inner core of the detection cable for power-taking detection voltage;

[0013] The integrating box is provided with a control propeller, and the control propeller controls the movement of the power taking detection probe by linkage with the power taking detection probe through the adjusting component;

[0014] The wrapped buckle structure includes a pair of slots, a pair of slots are symmetrically opened on both sides of the docking seat, a pair of tensioners are arranged on the pair of slots, and the pair of tensioners are provided with an adjuster through a gear set linkage, a pair of guide rods are inserted in the pair of slots, the pair of guide rods cooperate with the pair of tensioners, and the bottom of the pair of guide rods is connected with a wrapping groove matching the shape of the docking seat;

[0015] Sealing components are matchedly arranged on both sides of the docking seat and on both sides of the wrapping groove.

[0016] Preferably, the regulator is composed of a rotation groove provided on the docking seat, a rotation shaft assembled in the rotation groove, and a driving worm arranged coaxially with the rotation shaft;

[0017] The gear set includes a pair of driving worm wheels, the driving worm is meshed with a pair of driving worm wheels, the pair of tensioners is a pair of nut sleeves, a pair of driving worm wheels is coaxially provided with a pair of transmission gears, a pair of tensioners is externally sleeved with a pair of fastening gears respectively meshed with a pair of transmission gears, the pair of guide rods is a pair of threaded rods, and the pair of tensioners is threadedly connected with the pair of guide rods;

[0018] Preferably, the low-voltage monitoring terminal preferably adopts a DK6211-G (L) type low-voltage circuit measurement and control terminal, and the terminal block detection line of the low-voltage monitoring terminal is a three-phase detection line.

[0019] Preferably, the power-taking detection probe uses a temperature sensor to complete temperature detection of the detection cable while taking power to perform voltage detection.

[0020] Preferably, the data line integrates a temperature measurement data line, a voltage data line and a current data line.

[0021] Preferably, the control thruster includes a rotating seat, the integrating box is provided with a rotating seat, a Z-shaped guide groove is opened on the rotating seat, an insulating rod is movably mounted on the central axis of the rotating seat, a control block is provided on the top end of the insulating rod and assembled in the guide groove, a pre-stressed spring is mounted on the insulating rod, and the insulating rod corresponds to the top end of the power-taking detection probe.

[0022] Preferably, both sides of the sampling detection probe are connected to the docking seat by a pair of flexible belts, and a guide hole is provided on the docking seat, the top of the sampling detection probe is inserted into the guide hole, the bottom end of the insulating rod extends into the guide hole, and the outer sleeve of the sampling detection probe is provided with a sealing conical sleeve.

[0023] Preferably, the bottom end of the insulating rod contacts the top end of the sampling detection probe, and when the control block is located at the high position of the guide groove, the pre-compression spring is in a stretched state, and when the control block is rotated to the low position of the guide groove, the sampling detection probe is pressed downward into the outer skin of the puncture detection cable.

[0024] Preferably, the integration box is a rectangular box body made of plastic material, and the docking seat is a rectangular arc-less plate extending out of the integration box.

[0025] Preferably, the sealing assembly includes two pairs of sealing ring grooves, and two pairs of sealing ring grooves are provided at both ends of the docking seat corresponding to the two ends of the wrapping groove. The two pairs of sealing ring grooves are equipped with sealing ring sleeves at both ends. Both pairs of sealing ring sleeves are semi-annular structures and their shapes match each other and are wrapped around the outer circumference of the detection cable.

[0026] Beneficial Effects

[0027] The present invention provides an integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas. It has the following beneficial effects: the integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas adopts integrated voltage puncture acquisition and current flexible acquisition, and integrates the voltage, current and temperature acquisition functions on a flexible Rogowski coil transformer with puncture. It has a compact and simple structure, is suitable for wiring environments of low-voltage cabinets of different sizes, and is compatible with a variety of cable diameters. It can collect data stably and support fast installation with power on. It uses a buckle and pull connection to completely seal the cable puncture position, improve the structural sealing, and is easy and quick to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a wiring diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas described in Example 1 of the present invention.

[0029] Figure 2 This is a first stereoscopic structural schematic diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas described in Example 1 of the present invention.

[0030] Figure 3 This is a second stereoscopic structural schematic diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas described in Example 1 of the present invention.

[0031] Figure 4 This is a partial axonometric structural diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas described in Example 1 of the present invention.

[0032] Figure 5 This is a partial cross-sectional structural schematic diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas described in Example 1 of the present invention.

[0033] Figure 6 It is a schematic diagram of the partial three-dimensional structure of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas described in Example 2 of the present invention.

[0034] In the figure: 1. low voltage monitoring terminal; 2. terminal block; 3. detection line; 4. transformer with piercing flexible Rogowski coil; 41. connector; 42. data line; 43. flexible coil; 44. integration box; 45. docking seat; 46. encapsulated buckle structure; 47. power detection probe; 48. control thruster; 49. binding band; 461. wrapping groove; 462. slot; 463. tensioner; 464. gear set; 465. regulator; 466. guide rod; 467. sealing assembly; 471. flexible band; 472. guide hole; 473. sealing cone sleeve; 481. rotating seat; 482. guide groove; 483. insulating rod; 484. control block; 485. preload spring; 4641. driving worm gear; 4642. transmission gear; 4643. fastening gear; 4651. rotating shaft; 4652. driving worm. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-6 The present invention provides an implementation scheme: in the intelligent construction of modern low-voltage substations, since the previous voltage and current acquisition devices often adopt a distributed design, there are problems such as cumbersome installation and complex and bulky structure. In response to this problem, the present application discloses an integrated voltage and current acquisition device for intelligent monitoring of low-voltage substations. The device consists of a low-voltage monitoring terminal 1 and a puncture-flexible Rogowski coil transformer 4. The low-voltage monitoring terminal 1 adopts a DK6211-G (L) type low-voltage circuit measurement and control terminal. This type of low-voltage circuit measurement and control terminal adopts a guide rail structure and is easy to install. It is an intelligent integrated measurement and control terminal with temperature measurement, which effectively improves the monitoring accuracy of voltage and current. In addition, by improving the flexible Rogowski coil, the function of puncture power collection and voltage measurement is integrated, thereby improving functionality and improving installation convenience.

[0037] Embodiment 1: Further according to the specification sheet Figure 1-5 It can be seen that the above-mentioned low-voltage monitoring terminal 1 is provided with a wiring terminal 2, and a detection line 3 is connected to the wiring terminal 2. The detection line 3 is arranged according to the number of phases of the monitored circuit. The low-voltage circuit measurement and control terminal disclosed in the present application is mostly used for the measurement and control of three-phase low-voltage circuits, but is not limited to the use of circuits with other phases. At least one piercing flexible Rogowski coil mutual inductor 4 is connected to the detection line 3. The number of piercing flexible Rogowski coils to be used is determined specifically according to the number of phases of the measurement and control circuit. For example, the number of piercing flexible Rogowski coils used in a three-phase circuit is three.

[0038] Furthermore, according to Appendix 1-5 of the specification, the above-mentioned flexible Rogowski coil transformer 4 with puncture is composed of a connector 41, a data line 42 extending from the connector 41, and a flexible coil 43; in the specific implementation process, the connector 41 integrates a detection circuit of the flexible Rogowski coil transformer and a detection circuit for puncturing power measurement and voltage measurement, the detection circuit is connected to the data line 42, and the data line 42 is connected to the detection line 3, which is used to transmit the current data detected by the flexible Rogowski coil transformer, the voltage data detected by the puncturing power measurement and the temperature data detected by the temperature sensor back to the low voltage monitoring terminal 1 through the detection line 3;

[0039] Therefore, the power detection probe 47 needs to use a temperature sensor to complete the temperature detection of the detection cable while taking power for voltage detection. Therefore, the data line 42 integrates a temperature measurement data line 42, a voltage data line 42 and a current data line 42;

[0040] Furthermore, the outside of the connector 41 is wrapped with an integration box 44, and a connection seat is provided on one side of the integration box 44. The integration box 44 is a rectangular box body made of plastic material, and the docking seat 45 is a rectangular arc-deficient plate extending from the integration box 44. One side of the integration box 44 is fixedly connected to one end of the flexible coil 43, and the open end of the flexible coil 43 is provided with a movable joint connected to the connection seat. The integration box 44 serves as an external protective structure of the connector 41 to wrap and protect the connector 41, and then the fixed end of the flexible coil 43 is connected to the connector 41, and the flexible Roche coil passes through one side of the integration box 44, and the open end of the flexible coil 43 is connected to the connection seat through the movable joint, so that the flexible coil 43 can pass through the detection cable during installation and then be enclosed and locked. In this way, the flexible coil 43 can be closed and enclosed into a ring, which is convenient to install. In general, the movable joint and the connection seat can be locked by a snap or threaded structure, and the existing installation method of the flexible Roche coil can be referred to;

[0041] Furthermore, a docking seat 45 is provided at the bottom of the integration box 44 to contact the detection cable. The docking seat 45 plays a supporting and positioning role during the installation of the flexible Rogowski coil. Furthermore, a wrapped buckle structure 46 is provided at the bottom of the integration box 44. The wrapped buckle structure 46 cooperates with the docking seat 45 to wrap and clamp the detection cable. The wrapped buckle structure 46 can be docked with the docking seat 45 to play the role of jointly wrapping the power-taking part and supporting and fixing the integration box 44.

[0042] According to the instruction manual Figure 1-5It can be seen that the above-mentioned puncture flexible Rogowski coil mutual inductor 4 also includes a power detection probe 47, which is installed on the connecting seat. The power detection probe 47 penetrates the outer skin of the detection cable and contacts the inner core of the detection cable for power detection voltage. A control propeller 48 is provided on the integration box 44. The control propeller 48 controls the movement of the power detection probe 47 through the adjustment component and linkage with the power detection probe 47;

[0043] In the specific implementation process, when not installed, the control pusher 48 on the power-taking detection probe 47 is in an energy storage state ready to be fired, and the two sides of the sampling detection probe are connected to the docking seat 45 through a pair of flexible belts 471. When installing, first determine the installation position, use the docking seat 45 to correspond to the cable position, and complete the docking with the sheathed buckle structure 46 through the docking seat 45. Due to the blocking and reverse push of the outer skin of the detection cable, the detection cable drives the flexible belt 471 to deform, and then releases the control pusher 48, so that the control pusher 48 pushes the power-taking detection probe 47 to pierce the outer skin of the detection cable and contact the inner core of the detection cable, so as to achieve the function of power-taking detection voltage;

[0044] According to the instruction manual Figure 1-5 It can be known that the above-mentioned wrapped buckle structure 46 includes a pair of slots 462, a pair of slots 462 are symmetrically opened on both sides of the docking seat 45, a pair of tensioners 463 are arranged on the pair of slots 462, the pair of tensioners 463 are linked with an adjuster 465 through a gear set 464, a pair of guide rods 466 are inserted in the pair of slots 462, the pair of guide rods 466 cooperate with the pair of tensioners 463, and the bottom of the pair of guide rods 466 is connected with a wrapping groove 461 that matches the shape of the docking seat 45;

[0045] In the specific implementation process, the pair of slots 462 first limit the pair of tensioners 463 and guide the pair of guide rods 466. When the wrapping slot 461 is installed, the pair of guide rods 466 are inserted into the pair of slots 462, and then the pair of guide rods 466 are engaged with the pair of tensioners 463, and the movement of the pair of tensioners 463 is synchronously adjusted by the adjuster 465, so that the pair of tensioners 463 and the pair of guide rods 466 are linked to tighten the wrapping slot 461, so that the wrapping slot 461 and the docking seat 45 are relatively embraced to encircle the detection cable, so as to fix the position of the docking seat 45, and then the two sides of the docking seat 45 are connected with the wrapping slot 461. Sealing components 467 are matched on both sides to further improve the sealing performance of the wrapping groove 461 and the docking seat 45, thereby protecting the puncture hole position, preventing water ingress and other factors from affecting the accuracy of puncture voltage detection, and protecting equipment safety. The specific sealing component 467 includes two pairs of sealing ring grooves. Two pairs of sealing ring grooves are correspondingly provided at both ends of the docking seat 45 and the two ends of the wrapping groove 461. The two pairs of sealing ring grooves are equipped with sealing ring sleeves at both ends. Both pairs of sealing ring sleeves are semi-annular structures and their shapes match each other and are wrapped around the outer periphery of the detection cable. During the relative tensioning process of the wrapping groove 461 and the docking seat 45, the sealing ring sleeves have an interference fit with the outer skin of the detection cable to achieve a sealing effect.

[0046] According to the instruction manual Figure 1-5 It can be seen that the above-mentioned adjuster 465 is composed of a rotating groove provided on the docking seat 45, a rotating shaft 4651 assembled in the rotating groove, and a driving worm 4652 coaxially arranged with the rotating shaft 4651. The driving worm 4652 is driven to rotate by the rotating shaft 4651. A rotating block with a variable diameter is provided at the end of the rotating shaft 4651. A hexagonal socket is provided on the rotating block. The rotating shaft 4651 is adjusted by a hexagonal wrench.

[0047] Furthermore, the gear set 464 includes a pair of driving worm gears 4641, the driving worm 4652 meshes with the pair of driving worm gears 4641, the pair of tensioners 463 are a pair of nut sleeves, the pair of driving worm gears 4641 are coaxially provided with a pair of transmission gears 4642, the pair of tensioners 463 are externally sleeved with a pair of fastening gears 4643 respectively meshing with the pair of transmission gears 4642, the pair of guide rods 466 are a pair of threaded rods, and the pair of tensioners 463 and the pair of guide rods 466 are threadedly connected;

[0048] In the specific implementation process, the driving worm 4652 is meshed with the pair of driving worm wheels 4641, so that the driving worm 4652 and the pair of driving worm wheels 4641 are meshed and rotated, and then the driving worm wheels 4641 and the transmission gear 4642 are rotated synchronously, and then the pair of fastening gears 4643 meshed with the pair of transmission gears 4642 are rotated, and the pair of tensioners 463 are driven to rotate through the pair of fastening gears 4643. When the pair of guide rods 466 are inserted into the pair of guide grooves, the pair of guide rods 466 are threadedly meshed with the pair of tensioners 463, and then the pair of guide rods 466 pull the wrapping groove 461 close to the docking seat 45, so that the wrapping groove 461 and the docking seat 45 embrace the detection cable;

[0049] According to the instruction manual Figure 1-5 It can be known that the above-mentioned control thruster 48 includes a rotating seat 481, a rotating seat 481 is arranged on the integrating box 44, a Z-shaped guide groove 482 is opened on the rotating seat 481, an insulating rod 483 is movably assembled on the central axis of the rotating seat 481, a control block 484 is arranged at the top end of the insulating rod 483 and assembled in the guide groove 482, a pre-stressed spring 485 is assembled on the insulating rod 483, and the insulating rod 483 corresponds to the top end of the power-taking detection probe 47.

[0050] In the specific implementation process, the rotating seat 481 is hollow, and the insulating rod 483 can be axially limited by the rotating seat 481, so that the insulating rod 483 can move axially. A guide groove 482 is provided on the rotating seat 481, and a control block 484 is assembled on the guide groove 482. The control block 484 is guided by the guide groove 482, and then a guide hole 472 is opened on the docking seat 45. Before the control block 484 is unlocked, the top of the sampling detection probe is reversely pushed through the outer skin of the detection cable to insert the sampling detection probe into the guide hole 472, and the bottom end of the insulating rod 483 extends to the guide hole 472, before installation, the control block 484 is installed at the top of the guide groove 482, and during installation, the control block 484 is rotated to move along the guide groove 482, and then the control block 484 moves to the bottom of the guide groove 482, and during the pulling-in process of the preload spring 485, the insulating rod 483 moves along the guide hole 472, so that the insulating rod 483 pushes the sampling detection probe to be inserted into the outer skin of the detection cable and contact with the inner core of the detection cable, and the outer sleeve of the sampling detection probe is provided with a sealing conical sleeve 473, and the sealing conical sleeve 473 also limits the broken skin of the cable.

[0051] Embodiment 2: According to the specification sheet Figure 6It can be seen that in order to be used in narrow areas, during the application process, a strap is provided on one side of the docking socket 45, and the docking socket 45 is directly tied to the cable to be tested using the strap 49, and the power collection detection probe 47 on the integration box is directly used to penetrate the cable to be tested to implement the power collection detection operation. In such an application, there is no need to use the regulator 465 and the tensioner 463, and the sealing is abandoned. The sealing effect is provided by the sealing conical sleeve 473 on the power collection detection probe 47 to protect the power collection hole.

[0052] From the above, it can be generally known that the integrated voltage and current acquisition device for intelligent monitoring of low-voltage substations adopts integrated voltage puncture acquisition and current flexible acquisition, and integrates the voltage, current and temperature acquisition functions on the flexible Rogowski coil transformer 4 with puncture. It has a compact and simple structure, is suitable for wiring environments of low-voltage cabinets of different sizes, and is compatible with a variety of cable diameters. It can collect data stably and support fast installation under power. It uses a buckle and pull connection to completely seal the cable puncture position, improve the structural sealing, and is easy and quick to install.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas, comprising a low-voltage monitoring terminal (1), wherein the low-voltage monitoring terminal (1) is provided with a wiring terminal (2), wherein the wiring terminal (2) is connected to a detection line (3), wherein the detection line (3) is connected to at least one puncture-flexible Rogowski coil mutual inductor (4), characterized in that: The puncture-type flexible Rogowski coil mutual inductor (4) is composed of a connector (41), a data line (42) extending from the connector (41), and a flexible coil (43), wherein the data line (42) is connected to the detection line (3); The connector (41) is externally wrapped with an integration box (44), one side of the integration box (44) is provided with a connection seat, one side of the integration box (44) is fixedly connected to one end of the flexible coil (43), and the open end of the flexible coil (43) is provided with a movable joint connected to the connection seat; The bottom of the integration box (44) is provided with a docking seat (45) for contacting the detection cable, and the bottom of the integration box (44) is provided with a wrapped buckle structure (46), and the wrapped buckle structure (46) cooperates with the docking seat (45) to wrap and clamp the detection cable; The puncture-type flexible Rogowski coil mutual inductor (4) further comprises a power-taking detection probe (47), wherein the power-taking detection probe (47) is mounted on a connection seat, and the power-taking detection probe (47) penetrates the outer skin of the detection cable and contacts the inner core of the detection cable for power-taking detection voltage; The integrating box (44) is provided with a control propeller (48), and the control propeller (48) is linked with the power-taking detection probe (47) through an adjustment component to control the movement of the power-taking detection probe (47); The encapsulated buckle structure (46) comprises a pair of slots (462), a pair of slots (462) are symmetrically provided on both sides of the docking seat (45), a pair of tensioners (463) are provided on the pair of slots (462), the pair of tensioners (463) are linked with an adjuster (465) through a gear set (464), a pair of guide rods (466) are inserted in the pair of slots (462), the pair of guide rods (466) cooperate with the pair of tensioners (463), and the bottom of the pair of guide rods (466) is connected with a wrapping groove (461) matching the shape of the docking seat (45); Sealing components (467) are provided on both sides of the docking seat (45) to match the two sides of the wrapping groove (461).

2. The integrated voltage and current acquisition device for low-voltage area intelligent monitoring according to claim 1 is characterized in that: The low-voltage monitoring terminal (1) preferably adopts a DK6211-G (L) type low-voltage circuit measurement and control terminal, and the detection line (3) of the connection terminal (2) of the low-voltage monitoring terminal is a three-phase detection line (3).

3. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas according to claim 2 is characterized in that: The power-taking detection probe (47) uses a temperature sensor to complete temperature detection of the detection cable while taking power to perform voltage detection.

4. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas according to claim 3 is characterized in that: The data line (42) integrates a temperature measurement data line (42), a voltage data line (42) and a current data line (42).

5. The integrated voltage and current acquisition device for low-voltage area intelligent monitoring according to claim 4 is characterized in that: The control thruster (48) includes a rotating seat (481), the integrating box (44) is provided with a rotating seat (481), a Z-shaped guide groove (482) is provided on the rotating seat (481), an insulating rod (483) is movably mounted on the central axis of the rotating seat (481), a control block (484) is provided at the top end of the insulating rod (483) and is mounted in the guide groove (482), a pre-stressed spring (485) is mounted on the insulating rod (483), and the insulating rod (483) corresponds to the top end of the power sampling detection probe (47).

6. The integrated voltage and current acquisition device for low-voltage area intelligent monitoring according to claim 5 is characterized in that: The two sides of the sampling detection probe are connected to the docking seat (45) through a pair of flexible belts (471), and a guide hole (472) is provided on the docking seat (45). The top of the sampling detection probe is inserted into the guide hole (472), and the bottom end of the insulating rod (483) extends into the guide hole (472). The outer sleeve of the sampling detection probe is provided with a sealing conical sleeve (473).

7. The integrated voltage and current acquisition device for low-voltage area intelligent monitoring according to claim 6 is characterized in that: The bottom end of the insulating rod (483) contacts the top end of the sampling detection probe. When the control block (484) is located at the high position of the guide groove (482), the preload spring (485) is in a stretched state. When the control block (484) is rotated to the low position of the guide groove (482), the sampling detection probe is pressed downward into the outer skin of the puncture detection line (3).

8. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage areas according to claim 7 is characterized in that: The integration box (44) is a rectangular box body made of plastic material, and the docking seat (45) is a rectangular arc-less plate extending out of the integration box (44).

9. The integrated voltage and current acquisition device for low-voltage area intelligent monitoring according to claim 8 is characterized in that: The sealing assembly (467) includes two pairs of sealing ring grooves. Two pairs of sealing ring grooves are provided at the two ends of the docking seat (45) and at the two ends of the wrapping groove (461), respectively. The two pairs of sealing ring grooves are equipped with sealing ring sleeves at both ends. Both pairs of sealing ring sleeves are semi-annular structures and are matched in shape to wrap around the outer circumference of the detection cable.

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