A built-in silicon steel core current sensor for signal acquisition

Abstract

The present invention belongs to the technical field of magnetic core current sensors, and specifically is a built-in silicon steel magnetic core current sensor for signal acquisition, comprising a shell, wherein two fixing grooves are provided in the middle of the shell, two magnetic core rings are fixedly connected to the interior of the shell, one side of the shell is fixedly connected to a box, a heat generating component is arranged inside the box, the heat generating component comprises a second cavity provided in the box, a first motor is arranged in the second cavity, a friction disk is fixedly connected to the output end of the first motor, and an adjustment component drives a lubrication component, and the lubrication component is used to spray lubricant on the contact surface between the positioning plate and the friction disk to reduce the friction coefficient and wear rate between the friction disk and the positioning plate. By arranging the heat generating component, the adjustment component and the lubrication component, the problem that when the external temperature is low, the sensor's induction ability to the magnetic field is weakened, thereby affecting the accuracy of the measurement result is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of magnetic core current sensors, in particular to a built-in silicon steel magnetic core current sensor for signal acquisition. Background Art

[0002] The magnetic core current sensor is an important current sensing device that uses the magnetic field generated when the current passes through the magnetic core to measure the current. This sensor has the advantages of non-contact measurement, high precision, high stability and good insulation performance, and is widely used in power systems, industrial automation control, electric vehicles and other fields.

[0003] The existing magnetic core current sensor measures current based on the principle of electromagnetic induction. When current passes through a wire, a magnetic field is generated around the wire. The magnetic core current sensor measures the current by sensing this magnetic field. When in use, the wire to be measured passes through the magnetic core current sensor. Non-contact measurement can be achieved without disconnecting the circuit. The sensor contains a magnetic core and a coil. When the current to be measured passes through the wire, the magnetic core senses the magnetic field and generates an electromotive force, and the coil converts the electromotive force into a voltage signal output. By measuring this voltage signal, the size of the current to be measured can be known. The magnetic core current sensor has high precision, high stability and good insulation performance, and is a commonly used current measurement device in industrial automation control and power systems.

[0004] When using existing magnetic core current sensors, when used at low external temperatures, the magnetic permeability of the magnetic core material will change, causing the sensor's ability to sense the magnetic field to weaken, thereby affecting the accuracy of the measurement results. In addition, low temperatures may also cause the performance of electronic components inside the sensor to degrade, further exacerbating measurement errors.

[0005] To this end, the present invention provides a built-in silicon steel core current sensor for signal acquisition. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: the built-in silicon steel core current sensor for signal acquisition described in the present invention comprises a shell, two fixing grooves are provided in the middle of the shell, two magnetic core rings are fixedly connected inside the shell, and one side of the shell is fixedly connected to the box body.

[0008] A heat generating component is arranged inside the box, and the heat generating component includes a second cavity opened in the box, a first motor is arranged in the second cavity, a friction disk is fixedly connected to the output end of the first motor, a positioning plate is slidably arranged in the box, and the heat energy generated by the intense friction between the positioning plate and the friction disk can be conducted to the magnetic core ring;

[0009] An adjustment component is provided on one side of the box body, and the adjustment component is used to adjust the position of the positioning plate. It can adaptably replace the friction points between the friction disc and the positioning plate to prevent excessive friction at one point of the positioning plate. At the same time, the adjustment component will drive the lubrication component, and the lubrication component is used to spray lubricant on the contact surface between the positioning plate and the friction disc to reduce the friction coefficient and wear rate between the friction disc and the positioning plate.

[0010] Preferably, a transmission gear is also fixedly connected to the output end of the first motor, and the transmission gear is transmission-connected to a transmission belt. A transmission gear is also provided at the end of the transmission belt away from the first motor. A connecting rod is rotatably connected to the lower surface of the transmission gear, and the connecting rod is fixedly connected to the inner wall of the box. The two transmission gears are transmitted through the transmission belt. Friction disks are fixedly connected to the top ends of the two transmission gears. The two friction disks can generate heat by friction with the positioning plate, thereby transmitting heat to the magnetic core ring to increase the temperature of the magnetic core ring.

[0011] Preferably, the circumferential surface of each friction disk is estimated to be provided with an adsorption ring, and the adsorption ring is made of activated carbon and can adsorb stainless steel powder and lubricant.

[0012] Preferably, the adjustment assembly includes a rotating handle rotatably arranged on one side of the box body, a reciprocating screw is fixedly connected to one side of the rotating handle, the reciprocating screw passes through two positioning plates, the reciprocating screw can drive the two positioning plates to slide along the reciprocating screw, and a limiting shaft is fixedly connected to one side of the box body, the limiting shaft passes through the two positioning plates, and the limiting shaft plays a limiting role.

[0013] Preferably, a conduction plate is provided on the upper surface of each positioning plate, and the conduction plate is made of a thermally conductive insulating silicone gasket that can better conduct heat. Each of the conduction plates is fixedly connected to the lower surface of the magnetic core ring.

[0014] Preferably, a sliding rod is provided on one side of each positioning plate, and a sliding groove is opened at the position of the box body corresponding to the sliding rod. The sliding rod can slide along the sliding groove driven by the positioning plate, and the sliding rod is used to observe the adjusted position of the positioning plate and accurately control the adjustment of the positioning plate.

[0015] Preferably, a lubrication assembly is provided at a position of the box body corresponding to the sliding rod, and the lubrication assembly is used to spray lubricant on the lower surface of the positioning plate, and the lubricant can reduce the friction coefficient and wear rate between the friction disk and the positioning plate.

[0016] Preferably, the lubrication assembly includes a sealing rod fixedly connected to the lower surface of the sliding rod, sealing plates are abutted on both sides of the sealing rod, and a compression spring is fixedly connected to the end of each sealing plate away from the sealing rod. The sliding of the sliding rod drives the sealing rod to slide, thereby squeezing the compression spring. A first cavity is opened at the position of the box body corresponding to the sealing rod, and the sealing rod can change the pressure inside the first cavity. Two connecting boxes are fixedly connected to one side of the box body, and a fixing hole is opened at the position of each connecting box in the box body. The lubricant in the connecting box will flow into the first cavity, and a nozzle capable of spraying lubricant is fixedly connected to the second cavity. The upper surface of each sealing plate is abutted against a fixing plate, and the fixing plate is used to limit the sealing plate.

[0017] Preferably, a connecting hole is provided on one side of the nozzle close to the first cavity, the connecting hole is connected to the first cavity, a plurality of nozzle holes are provided on the upper surface of the nozzle, the cross section of the nozzle is rectangular, and the width is the same as that of the positioning plate.

[0018] Preferably, the sliding of the sealing rod changes the pressure in the first cavity, thereby pressing the lubricant in the first cavity into the nozzle and then spraying it out from the nozzle hole of the nozzle to lubricate the lower surface of the positioning plate. Then, during the friction between the positioning plate and the friction disk, the wear of the positioning plate and the friction disk can be reduced, thereby extending the service life of the friction disk and the positioning plate.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The built-in silicon steel core current sensor for signal acquisition described in the present invention provides a certain amount of heat to the core ring through a built-in heat-generating component to increase the temperature of the core ring. Specifically, the first motor is started to drive the friction disk to rotate, which generates intense friction with the positioning plate slidingly arranged in the box body, thereby generating heat energy. The heat energy is then effectively conducted to the core ring to reach the temperature standard at which the core ring can work stably. At the same time, in order to ensure the uniform distribution of heat energy and prevent excessive wear of a single point of the positioning plate, the sensor is equipped with an adjustment component. This component can flexibly adjust the position of the positioning plate so that the friction point between the friction disk and the positioning plate can change adaptively, effectively dispersing the friction force and heat, and extending the service life of the component.

[0021] 2. The built-in silicon steel core current sensor for signal acquisition described in the present invention transmits power to another transmission gear through a transmission gear and a transmission belt, thereby driving the second friction disk to rotate synchronously. The two friction disks are respectively located on the lower surfaces of the two positioning plates, and generate heat energy through intense friction with the two positioning plates. The heat energy is then transferred to the magnetic core ring, thereby achieving efficient and uniform generation of heat energy. The simultaneous operation of the two friction disks not only improves the rate of heat energy generation, but also ensures uniform distribution of heat on the magnetic core ring. By introducing transmission gears and transmission belts, the current sensor achieves efficient, uniform and sustainable generation of heat energy, provides a stable operating temperature for the silicon steel core, and further improves the accuracy of current signal acquisition and the overall performance of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the connection box of the present invention;

[0025] Figure 3 is a schematic diagram of the internal structure of the second cavity of the present invention;

[0026] Figure 4 is a schematic structural diagram of a first motor of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the friction disc of the present invention;

[0028] Figure 6 The present invention Figure 5 The enlarged view of point A in the middle;

[0029] Figure 7 It is a structural schematic diagram of the fixing hole of the present invention;

[0030] Figure 8 is a schematic structural diagram of the first cavity of the present invention;

[0031] In the figure: 1. housing; 2. fixing groove;

[0032] 3. Box body; 31. Connecting box; 32. Fixing hole; 33. First cavity; 34. Sliding groove; 35. Sliding rod; 36. Fixing plate; 37. Sealing plate; 38. Compression spring; 39. Sealing rod; 310. Spray pipe; 311. Connecting hole; 312. Spray hole; 313. Second cavity;

[0033] 4. first motor; 41. friction disc; 42. adsorption ring; 43. transmission gear; 44. transmission belt; 45. connecting rod;

[0034] 5. Rotating handle; 51. Reciprocating screw; 52. Limiting shaft; 53. Positioning plate; 54. Conducting plate;

[0035] 6. Magnetic core ring. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] Embodiment 1: Figures 1 to 8 As shown, a built-in silicon steel core current sensor for signal acquisition described in an embodiment of the present invention includes a shell 1, two fixing grooves 2 are provided in the middle of the shell 1, two core rings 6 are fixedly connected inside the shell 1, one side of the shell 1 is fixedly connected to the box 3, a heat generating component is arranged inside the box 3, the heat generating component includes a second cavity 313 arranged in the box 3, a first motor 4 is arranged in the second cavity 313, a friction disk 41 is fixedly connected to the output end of the first motor 4, a positioning plate 53 is slidably arranged in the box 3, and the heat energy generated by the intense friction between the positioning plate 53 and the friction disk 41 can be conducted to the core ring 6; an adjustment component is arranged on one side of the box 3, the adjustment component is used to adjust the position of the positioning plate 53, and can adaptively replace the friction point between the friction disk 41 and the positioning plate 53 to prevent excessive friction at one point of the positioning plate 53, and at the same time the adjustment component will drive the lubrication component, and the lubrication component is used to spray lubricant on the contact surface of the positioning plate 53 and the friction disk 41 to reduce the friction coefficient and wear rate between the friction disk 41 and the positioning plate 53.

[0038] Specifically, when using an existing magnetic core current sensor, when it is used at a low external temperature, the magnetic permeability of the magnetic core material will change, causing the sensor's ability to sense the magnetic field to weaken, thereby affecting the accuracy of the measurement results. In addition, low temperatures may also cause the performance of electronic components inside the sensor to deteriorate, further exacerbating measurement errors.

[0039] Therefore, the present invention solves this problem by setting a certain structure. First, a certain amount of heat is provided to the magnetic core ring 6 through a built-in heat generating component to increase the temperature of the magnetic ring. Specifically, the first motor 4 is started to drive the friction disk 41 to rotate, and violent friction is generated with the positioning plate 53 slidingly arranged in the box body 3, thereby generating heat energy. The heat energy is then effectively conducted to the magnetic core ring 6 to reach the temperature standard at which the magnetic core ring 6 can work stably. At the same time, in order to ensure the uniform distribution of heat energy and prevent excessive wear of a single point of the positioning plate 53, the sensor is equipped with an adjustment component. This component can flexibly adjust the position of the positioning plate 53, so that the friction point between the friction disk 41 and the positioning plate 53 can be adaptively changed, effectively dispersing the friction force and heat, and extending the service life of the component.

[0040] In addition, the sensor is also provided with a lubrication component, which can automatically spray lubricant on the contact surface between the positioning plate 53 and the friction plate 41 while adjusting the driving positioning plate 53 of the component. The application of lubricant reduces the friction coefficient and wear rate between the positioning plate 53 and the friction plate 41, which not only improves the mechanical efficiency, but also further ensures the long-term stable operation of the sensor.

[0041] In summary, the current sensor achieves efficient, stable and durable heat conduction through the setting of heat generating components, regulating components and lubricating components, provides a stable working environment for the silicon steel core, and improves the accuracy and reliability of current measurement;

[0042] The problem that when the external temperature is low, the sensor's ability to sense the magnetic field is weakened, thereby affecting the accuracy of the measurement result is solved.

[0043] like Figure 5 As shown, in this embodiment, the output end of the first motor 4 is also fixedly connected to a transmission gear 43, and the transmission gear 43 is transmission-connected to a transmission belt 44. A transmission gear 43 is also provided at one end of the transmission belt 44 away from the first motor 4. A connecting rod 45 is rotatably connected to the lower surface of the transmission gear 43, and the connecting rod 45 is fixedly connected to the inner wall of the box body 3. The two transmission gears 43 are transmitted through the transmission belt 44. The top ends of the two transmission gears 43 are fixedly connected to friction disks 41. The two friction disks 41 can generate heat by friction with the positioning plate 53, thereby transmitting heat to the magnetic core ring 6 to increase the temperature of the magnetic core ring 6.

[0044] Specifically, the output end of the first motor 4 not only directly drives a friction disk 41 to rotate, but also transmits power to another transmission gear 43 through a transmission gear 43 and a transmission belt 44, thereby driving the second friction disk 41 to rotate synchronously. The two friction disks 41 are respectively located on the lower surfaces of the two positioning plates 53, and generate heat energy through intense friction with the positioning plates 53, and then transfer the heat energy to the magnetic core ring 6, thereby realizing efficient and uniform generation of heat energy. The simultaneous operation of the two friction disks 41 not only improves the rate of heat energy generation, but also ensures uniform distribution of heat on the magnetic core ring 6. By introducing the transmission gear 43 and the transmission belt 44, the current sensor realizes efficient, uniform and sustainable generation of heat energy, provides a stable operating temperature for the silicon steel core, and further improves the accuracy of current signal acquisition and the overall performance of the sensor.

[0045] like Figure 5 As shown, in this embodiment, each friction disk 41 is estimated to have an adsorption ring 42 on its circumferential surface. The adsorption ring 42 is made of activated carbon and can adsorb stainless steel powder and lubricant.

[0046] Specifically, the circumferential surface of each friction disk 41 is provided with an adsorption ring 42 made of activated carbon, which can adsorb stainless steel powder and lubricant generated during work, effectively preventing the influence of impurities on the friction process. When the lubricant flows out from the side of the friction disk 41, the lubricant is prevented from interfering with the operation of the motor, thereby improving the stability of the equipment.

[0047] like Figures 3 to 5 As shown, the adjustment component of this embodiment includes a rotating handle 5 rotatably arranged on one side of the box body 3, a reciprocating screw 51 is fixedly connected to one side of the rotating handle 5, the reciprocating screw 51 passes through two positioning plates 53, the reciprocating screw 51 can drive the two positioning plates 53 to slide along the reciprocating screw 51, and a limiting shaft 52 is fixedly connected to one side of the box body 3, the limiting shaft 52 passes through the two positioning plates 53, and the limiting shaft 52 plays a limiting role.

[0048] Specifically, by manually rotating the rotating handle 5 set on one side of the box body 3, the rotating handle 5 drives the reciprocating screw 51 fixed thereto to rotate. Since the reciprocating screw 51 passes through the two positioning plates 53 and is threadedly matched with the positioning plates 53, when the reciprocating screw 51 rotates, the two positioning plates 53 can be driven to slide along the axial direction of the reciprocating screw 51. At the same time, the limiting shaft 52 fixed to one side of the box body 3 passes through the two positioning plates 53, which limits the rotation of the positioning plates 53 and ensures that the positioning plates 53 can only slide along a straight line. By rotating the rotating handle 5, the friction points between the two positioning plates 53 and the friction disk 41 are adjusted, thereby preventing the positioning plates 53 from being excessively worn at a single point, so that the friction points between the friction disk 41 and the positioning plates 53 can change adaptively, effectively dispersing the friction force and heat, and extending the service life of the components.

[0049] like Figure 4 As shown, in this embodiment, a conducting plate 54 is disposed on the upper surface of each positioning plate 53 . The conducting plate 54 is made of a thermally conductive insulating silicone gasket that can better conduct heat. Each conducting plate 54 is fixedly connected to the lower surface of the magnetic core ring 6 .

[0050] Specifically, the conduction plate 54 made of the silicone thermally conductive insulating gasket on the upper surface of the positioning plate 53 effectively conducts the heat generated by the lower surface of the positioning plate 53 and the friction disk 41 to the magnetic core ring 6. The conduction plate 54 is fixedly connected to the lower surface of the magnetic core ring 6 to ensure a direct and efficient heat transfer path.

[0051] like Figure 2 As shown, in this embodiment, a sliding rod 35 is provided on one side of each positioning plate 53, and a sliding groove 34 is opened at the position of the box body 3 corresponding to the sliding rod 35. The sliding rod 35 can slide along the sliding groove 34 driven by the positioning plate 53. The sliding rod 35 is used to observe the adjusted position of the positioning plate 53 and accurately control the adjustment of the positioning plate 53.

[0052] Specifically, the sliding rod 35 on one side of the positioning plate 53 cooperates with the sliding groove 34 on the box body 3. By moving the positioning plate 53, the sliding rod 35 is driven to slide in the sliding groove 34, which intuitively reflects the adjustment position of the positioning plate 53. The sliding process of the sliding rod 35 realizes the precise control of the position of the positioning plate 53.

[0053] Embodiment 2: Figures 1 to 8 As shown, compared with Example 1, another embodiment of the present invention is: a lubrication component is provided at the position of the box body 3 corresponding to the sliding rod 35, and the lubrication component is used to spray lubricant on the lower surface of the positioning plate 53, and the lubricant can reduce the friction coefficient and wear rate between the friction disk 41 and the positioning plate 53.

[0054] Specifically, the lubrication assembly arranged at the corresponding position of the sliding rod 35 of the box body 3 can automatically spray lubricant to the lower surface of the positioning plate 53 while the sliding rod 35 adjusts the positioning plate 53. The lubricant forms a lubricating layer between the positioning plate 53 and the friction disk 41, effectively reducing the friction coefficient between the two and reducing wear.

[0055] like Figure 5 and Figure 6 As shown, the lubrication assembly of this embodiment includes a sealing rod 39 fixedly connected to the lower surface of the sliding rod 35, and sealing plates 37 are abutted on both sides of the sealing rod 39. A compression spring 38 is fixedly connected to the end of each sealing plate 37 away from the sealing rod 39. The sliding of the sliding rod 35 drives the sealing rod 39 to slide, thereby squeezing the compression spring 38. A first cavity 33 is opened at the position of the box body 3 corresponding to the sealing rod 39, and the sealing rod 39 can change the pressure inside the first cavity 33. Two connecting boxes 31 are fixedly connected to one side of the box body 3, and a fixing hole 32 is opened at the position of each connecting box 31 of the box body 3. The lubricant in the connecting box 31 will flow into the first cavity 33. A nozzle 310 capable of spraying lubricant is fixedly connected to the second cavity 313. The upper surface of each sealing plate 37 is abutted against a fixing plate 36, and the fixing plate 36 is used to limit the sealing plate 37.

[0056] Specifically, when the sliding rod 35 slides in the sliding groove 34 with the positioning plate 53, the sealing rod 39 fixed to its lower surface also moves accordingly. This action will squeeze the sealing plate 37 with compression springs 38 on both sides. As the sealing rod 39 slides, it changes the internal pressure of the first cavity 33 in the box body 3, forming a negative pressure effect, and pressurizing the lubricant in the first cavity 33 into the nozzle 310. Through the nozzle 310, it is evenly sprayed on the lower surface of the positioning plate 53. The design of the fixed plate 36 ensures the stability of the sealing plate 37 when it is squeezed, prevents lubricant leakage and stable sliding of the sealing plate 37, realizes automatic and on-demand supply of lubricant, and improves lubrication efficiency and accuracy, ensuring the lubrication effect between the positioning plate 53 and the friction disk 41. Through the cooperation of the compression spring 38 and the sealing plate 37, the lubricant can be effectively squeezed and evenly sprayed during the sliding process, thereby extending the service life of the equipment.

[0057] like Figure 6 As shown, a connecting hole 311 is provided on one side of the nozzle 310 close to the first cavity 33 , and the connecting hole 311 is connected to the first cavity 33 . A plurality of nozzle holes 312 are provided on the upper surface of the nozzle 310 . The cross section of the nozzle 310 is rectangular, and the width is the same as that of the positioning plate 53 .

[0058] Specifically, when the sealing rod 39 squeezes the lubricant in the first cavity 33, the lubricant will enter the plurality of nozzles 310 through the connecting hole 311, and then be sprayed out from the plurality of tiny spray holes 312 on the upper surface of the nozzles 310, thereby reducing the friction between the positioning plate 53 and the friction disk 41.

[0059] like Figure 3 and Figure 5 As shown, the sliding of the sealing rod 39 in this embodiment changes the pressure in the first cavity 33, thereby pressing the lubricant in the first cavity 33 into the nozzle 310, and then spraying it out from the nozzle hole 312 of the nozzle 310 to lubricate the lower surface of the positioning plate 53, and then in the process of friction between the positioning plate 53 and the friction disk 41, the wear of the positioning plate 53 and the friction disk 41 can be reduced, thereby extending the service life of the friction disk 41 and the positioning plate 53.

[0060] Specifically, the sliding of the sealing rod 39 changes the pressure in the first cavity 33, pressing the lubricant in the cavity into the nozzle 310. The lubricant is then evenly sprayed out from the multiple nozzle holes 312 of the nozzle 310, directly acting on the lower surface of the positioning plate 53 to achieve precise lubrication. During this process, the lubricant not only fills the tiny gap between the positioning plate 53 and the friction disk 41, but also forms a lubricating film, effectively reducing the direct contact area between the two.

[0061] Working principle: first, a certain amount of heat is provided to the magnetic core ring 6 through the built-in heat generating component to increase the temperature of the magnetic ring. Specifically, the first motor 4 is started to drive the friction disk 41 to rotate, and violent friction is generated with the positioning plate 53 slidingly set in the box 3, thereby generating heat energy. The output end of the first motor 4 not only directly drives one friction disk 41 to rotate, but also transmits power to another transmission gear 43 through the transmission gear 43 and the transmission belt 44, thereby driving the second friction disk 41 to rotate synchronously. The two friction disks 41 are respectively located on the lower surfaces of the two positioning plates 53, and generate heat energy by violent friction with them, and then conduct the heat energy to the magnetic core ring 6, thereby realizing efficient and uniform generation of heat energy. The simultaneous operation of the two friction disks 41 not only improves the rate of heat energy generation, but also ensures the uniform distribution of heat on the magnetic core ring 6. By introducing the transmission gear 43 and the transmission belt 44, the current sensor realizes efficient, uniform and sustainable generation of heat energy, provides a stable working temperature for the silicon steel core, and further improves the accuracy of current signal acquisition and the overall performance of the sensor.

[0062] The heat energy is then effectively transferred to the magnetic core ring 6, reaching the temperature standard at which the magnetic core ring 6 can work stably. At the same time, in order to ensure the uniform distribution of heat energy and prevent the positioning plate 53 from excessive wear at a single point, the sensor is equipped with an adjustment component. By manually rotating the rotating handle 5 set on one side of the box body 3, the rotating handle 5 drives the reciprocating screw 51 fixed thereto to rotate. Since the reciprocating screw 51 passes through the two positioning plates 53 and there is a threaded fit between the reciprocating screw 51 and the positioning plates 53, when the reciprocating screw 51 rotates, the two positioning plates 53 can be driven to slide along the axial direction of the reciprocating screw 51. At the same time, the limiting shaft 52 fixed on one side of the box body 3 passes through the two positioning plates 53, which limits the rotation of the positioning plates 53 and ensures that the positioning plates 53 can only slide in a straight line. By rotating the rotating handle 5, the friction points between the two positioning plates 53 and the friction disk 41 are adjusted, thereby preventing the positioning plates 53 from excessive wear at a single point, so that the friction points between the friction disk 41 and the positioning plates 53 can change adaptively, effectively dispersing the friction force and heat, and extending the service life of the components.

[0063] This component can flexibly adjust the position of the positioning plate 53, so that the friction point between the friction disc 41 and the positioning plate 53 can be adaptively changed, effectively dispersing the friction force and heat, and extending the service life of the component;

[0064] In addition, the lubrication assembly is arranged at the corresponding position of the sliding rod 35 of the box body 3. When the sliding rod 35 slides in the sliding groove 34 with the positioning plate 53, the sealing rod 39 fixed to its lower surface also moves accordingly. This action squeezes the sealing plate 37 with compression springs 38 on both sides. As the sealing rod 39 slides, it changes the internal pressure of the first cavity 33 in the box body 3, forming a negative pressure effect, pressurizing the lubricant in the first cavity 33 into the nozzle 310, and spraying it evenly on the lower surface of the positioning plate 53 through the nozzle 310. The design of the fixed plate 36 ensures the stability of the sealing plate 37 when it is squeezed, prevents the leakage of lubricant and the stability of the sliding of the sealing plate 37, realizes the automatic and on-demand supply of lubricant, and also improves the lubrication efficiency and accuracy, ensures the lubrication effect between the positioning plate 53 and the friction disk 41, and through the cooperation of the compression spring 38 and the sealing plate 37, the lubricant can be effectively squeezed and evenly sprayed during the sliding process, thereby extending the service life of the equipment.

[0065] This component can automatically spray lubricant on the contact surface between the positioning plate 53 and the friction disk 41 while adjusting the driving positioning plate 53 of the component. The application of lubricant reduces the friction coefficient and wear rate between the positioning plate 53 and the friction disk 41, which not only improves the mechanical efficiency, but also further ensures the long-term stable operation of the sensor.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A built-in silicon steel magnetic core current sensor for signal acquisition, comprising a housing (1), wherein two fixing grooves (2) are provided in the middle of the housing (1), two magnetic core rings (6) are fixedly connected inside the housing (1), and one side of the housing (1) is fixedly connected to a box (3), characterized in that: A heat generating component is arranged inside the box (3), the heat generating component comprising a second cavity (313) opened in the box (3), a first motor (4) is arranged in the second cavity (313), a friction disk (41) is fixedly connected to the output end of the first motor (4), a positioning plate (53) is slidably arranged in the box (3), and heat energy generated by intense friction between the positioning plate (53) and the friction disk (41) can be transferred to the magnetic core ring (6); An adjustment component is provided on one side of the box body (3), and the adjustment component is used to adjust the position of the positioning plate (53), and can adaptively replace the friction point between the friction plate (41) and the positioning plate (53). At the same time, the adjustment component drives the lubrication component, and the lubrication component is used to spray lubricant on the contact surface between the positioning plate (53) and the friction plate (41), so as to reduce the friction coefficient and wear rate between the friction plate (41) and the positioning plate (53); The adjustment assembly comprises a rotating handle (5) rotatably arranged on one side of the box body (3); a reciprocating screw (51) is fixedly connected to one side of the rotating handle (5); the reciprocating screw (51) passes through two positioning plates (53); the reciprocating screw (51) can drive the two positioning plates (53) to slide along the reciprocating screw (51); a limiting shaft (52) is fixedly connected to one side of the box body (3); the limiting shaft (52) passes through the two positioning plates (53); the limiting shaft (52) plays a limiting role.

2. The built-in silicon steel core current sensor for signal acquisition according to claim 1, characterized in that: The output end of the first motor (4) is also fixedly connected to a transmission gear (43), the transmission gear (43) is transmission-connected to a transmission belt (44), the end of the transmission belt (44) away from the first motor (4) is also provided with a transmission gear (43), the lower surface of the transmission gear (43) is rotatably connected to a connecting rod (45), the connecting rod (45) is fixedly connected to the inner wall of the box body (3), the two transmission gears (43) are transmitted through the transmission belt (44), the top ends of the two transmission gears (43) are fixedly connected to friction disks (41), the two friction disks (41) can generate heat by friction with the positioning plate (53), thereby transmitting the heat to the magnetic core ring (6), thereby increasing the temperature of the magnetic core ring (6).

3. The built-in silicon steel core current sensor for signal acquisition according to claim 2, characterized in that: The circumferential surface of each friction disk (41) is estimated to have an adsorption ring (42), and the adsorption ring (42) is made of activated carbon and is capable of adsorbing stainless steel powder and lubricant.

4. The built-in silicon steel core current sensor for signal acquisition according to claim 1, characterized in that: A conduction plate (54) is provided on the upper surface of each positioning plate (53); the conduction plate (54) is made of a thermally conductive insulating silicone gasket that can better conduct heat; and each conduction plate (54) is fixedly connected to the lower surface of the magnetic core ring (6).

5. The built-in silicon steel core current sensor for signal acquisition according to claim 1, characterized in that: A sliding rod (35) is provided on one side of each positioning plate (53); a sliding groove (34) is provided on the box body (3) at a position corresponding to the sliding rod (35); the sliding rod (35) can slide along the sliding groove (34) driven by the positioning plate (53); the sliding rod (35) is used to observe the adjusted position of the positioning plate (53) and accurately control the adjustment of the positioning plate (53).

6. The built-in silicon steel core current sensor for signal acquisition according to claim 5, characterized in that: A lubrication component is provided at a position of the box body (3) corresponding to the sliding rod (35), and the lubrication component is used to spray lubricant on the lower surface of the positioning plate (53). The lubricant can reduce the friction coefficient and wear rate between the friction disk (41) and the positioning plate (53).

7. The built-in silicon steel core current sensor for signal acquisition according to claim 1, characterized in that: The lubrication assembly comprises a sealing rod (39) fixedly connected to the lower surface of the sliding rod (35), both sides of the sealing rod (39) are in contact with sealing plates (37), and one end of each sealing plate (37) away from the sealing rod (39) is fixedly connected to a compression spring (38), and the sliding of the sliding rod (35) drives the sealing rod (39) to slide, thereby squeezing the compression spring (38), and the box body (3) is provided with a first cavity (33) at a position corresponding to the sealing rod (39), and the sealing rod (39) can change the first cavity ( The box body (33) is provided with two connection boxes (31) fixedly connected to one side of the box body (3), and a fixing hole (32) is provided in the box body (3) at a position corresponding to each connection box (31), and the lubricant in the connection box (31) flows into the first cavity (33), and a nozzle (310) capable of spraying the lubricant is fixedly connected to the second cavity (313), and the upper surface of each sealing plate (37) is abutted against a fixing plate (36), and the fixing plate (36) is used to limit the sealing plate (37).

8. The built-in silicon steel core current sensor for signal acquisition according to claim 7, characterized in that: A connection hole (311) is provided on a side of the nozzle (310) close to the first cavity (33), and the connection hole (311) is in communication with the first cavity (33). A plurality of nozzle holes (312) are provided on the upper surface of the nozzle (310). The nozzle (310) has a rectangular cross-section and has the same width as the positioning plate (53).

9. The built-in silicon steel core current sensor for signal acquisition according to claim 7, characterized in that: The sliding movement of the sealing rod (39) changes the pressure in the first cavity (33), thereby pressing the lubricant in the first cavity (33) into the nozzle (310), and then spraying it out from the spray hole (312) of the nozzle (310) to lubricate the lower surface of the positioning plate (53). Then, during the friction between the positioning plate (53) and the friction disk (41), the wear of the positioning plate (53) and the friction disk (41) can be reduced, thereby extending the service life of the friction disk (41) and the positioning plate (53).

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