A signal acquisition intelligent module

Abstract

The present invention discloses a signal acquisition intelligent module, which relates to the field of power monitoring technology. The device comprises a host and a sensor, wherein the sensor is used to collect cable information including voltage, current and temperature. The host is electrically connected to the sensor to receive the cable information fed back by the sensor and transmit it to a controller of an external electrical cabinet. The sensor comprises a power taking unit, a temperature measuring unit, a current acquisition unit and an electronic board. The cable passes through a cable fixing frame and a current acquisition unit of the power taking unit in sequence, and the passed cable is clamped by the cable fixing frame so that a puncture protrusion directly penetrates the insulation layer of the cable and reaches the wire core, thereby achieving lossless and safe power taking of the cable and measuring voltage and current. When the cable is clamped, a heat conducting member of the temperature measuring unit simultaneously clamps the cable and conducts the heat of the cable to a temperature measuring probe to achieve temperature measurement. The problem that the existing cable signal acquisition device of the electrical cabinet cannot achieve safe power taking and simultaneous acquisition of voltage, current and temperature signals is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power monitoring, and in particular to a signal acquisition intelligent module. Background Art

[0002] Medium and low voltage electrical switchgear is widely used in power systems, primarily managing and controlling the transmission and distribution of electricity. In low voltage electrical cabinets, monitoring cable voltage and temperature is crucial for ensuring safe and stable operation of electrical equipment. However, traditional transformer technology has numerous shortcomings in practical applications, making it difficult to meet modern power demands.

[0003] Traditional transformers: (1) Limitations in voltage signal acquisition: When measuring voltage signals, common transformers must first strip the insulation layer of the cable, connect the cable cores, and then directly obtain the voltage signal from the cable under test. This method has the following problems: complex operation and low efficiency; there are safety hazards: after stripping the insulation layer, the live part of the cable is exposed to the air, which can easily cause accidents such as electric shock and short circuit, seriously affecting electrical safety.

[0004] (2) Unable to meet the additional requirements of temperature measurement; cable temperature is an important parameter for the operation of electrical equipment. If the temperature is too high, there is a risk of power transmission accidents. To monitor cable temperature, it is usually necessary to install additional sensing equipment to achieve temperature measurement. However, traditional temperature measurement equipment used in electrical cabinets is bulky, and equipment that integrates multiple functions is usually large in size, which is not conducive to the compact design of low-voltage electrical cabinets.

[0005] (3) Limitations of traditional transformers: The design of traditional transformers is difficult to meet the requirements of miniaturization, multi-function and high efficiency at the same time. In the current era of rapid development, the modernization and upgrading of power systems require transformers to be able to measure voltage signals in a simpler, safer and more efficient way.

[0006] In summary, it is found that the existing technology has at least the following technical problems:

[0007] The existing electrical cabinet cable signal acquisition device cannot achieve the problem of safe power supply and simultaneous acquisition of voltage, current and temperature signals. Summary of the Invention

[0008] The purpose of the present invention is to provide a signal acquisition intelligent module to solve the problem that the existing electrical cabinet cable signal acquisition device cannot achieve safe power supply and simultaneous acquisition of voltage, current and temperature signals.

[0009] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0011] The present invention provides a signal acquisition intelligent module, including a host and a sensor, wherein the sensor is used to collect cable information including voltage, current and temperature, and the host is electrically connected to the sensor to receive the cable information fed back by the sensor and transmit it to the controller of the external electrical cabinet; the sensor includes a power taking unit, a temperature measuring unit, a current collecting unit and an electronic board installed in a shell made of an insulator; a wire hole is provided on the shell, and the power taking unit and the current collecting unit are respectively installed on both sides of the wire hole; the power taking unit includes a cable fixing frame made of a conductor, a heat conductor, a locking screw and a power taking wire; the cable fixing frame is aligned with the wire hole, the top of the cable fixing frame is threadedly connected to the tail of the locking screw, and the head of the locking screw rests on the screw support position in the shell; one end of the heat conductor extends into the cable fixing frame and abuts against the end of the locking screw, and the other end of the heat conductor abuts against the temperature measuring probe of the temperature measuring unit. The cable is fixed on the bottom of the cable fixing frame, and a puncture protrusion is provided; the external cable passes through the cable fixing frame, the wire hole and the current collection unit to realize the detection of the cable current; the cable fixing frame is driven to be lifted up by the locking screw, so that the cable is actively squeezed by the puncture protrusion and passively squeezed by the heat conductive member, the puncture protrusion pierces the insulation layer of the cable, and the puncture protrusion contacts the wire core of the cable, so that the power-taking wire is electrically connected to the cable through the puncture protrusion, the cable fixing frame, the locking bolt and the heat conductive member, thereby realizing safe power collection on the cable; the cable is passively squeezed by the heat conductive member, and the heat of the cable is transferred to the temperature measuring probe of the temperature measuring unit through the heat conductive member, thereby realizing temperature detection of the cable; the electronic board is electrically connected to the power-taking wire, the temperature measuring unit and the current collection unit, and the electronic board is electrically connected to the host.

[0012] In one embodiment, the host is installed on the top of the sensor; a terminal head is provided on the side of the host, and a terminal interface is provided on the side of the sensor; a slide groove is provided on the top of the sensor, and a slide rail is provided on the bottom of the host; when assembled, the host is embedded in the top of the sensor from the side, the slide rail is slid into the slide groove, and the terminal head is inserted into the terminal interface.

[0013] In one embodiment, a locking through hole is provided on the top of the sensor, and the locking through hole is vertically connected to the screw support position in the shell, that is, the locking through hole is connected to the head end face of the locking screw, which is used to provide a channel for a screwdriver to extend into the interior of the shell to screw the locking screw.

[0014] In one embodiment, the top of the sensor is provided with a torque mark for turning the locking screw so that the locking bolt at least reaches the torque mark for driving the piercing protrusion to pierce the insulation layer of the cable.

[0015] In one embodiment, the locking screw drives the cable fixing frame to cause the piercing protrusion to pierce the insulation layer of the cable and reach the core, and the torque is at least 3.5 Nm.

[0016] In one embodiment, a plurality of wire holes are provided in the shell; a single power taking unit, a single temperature measuring unit and a single current acquisition unit constitute a data acquisition group; each wire hole is correspondingly installed with a group of data acquisition groups; and a plurality of data acquisition groups are electrically connected to the electronic board.

[0017] In one embodiment, at least three wire holes are provided in the housing; the three wire holes respectively pass through the three-phase power cables L1, L2 and L3.

[0018] In one embodiment, a plurality of puncture protrusions are provided at the bottom of the cable fixing frame. The plurality of puncture protrusions are arranged side by side, and the plurality of side-by-side puncture protrusions are used to adapt to the cables of different diameters.

[0019] In one embodiment, the puncture protrusion is a triangular iron piece integrally formed with the cable fixing frame.

[0020] In one embodiment, the side of the cable fixing frame is provided with an injection hole; the outer side of the cable fixing frame is provided with a thermal conductive glue storage area, and the injection hole is connected to the thermal conductive glue storage area; the side of the shell corresponding to the thermal conductive glue storage area is provided with a push-pull groove, and a push-pull block is installed in the push-pull groove, and the two ends of the push-pull block are respectively an extrusion plate and a handle; the handle extends out of the push-pull groove, and the extrusion plate extends into the thermal conductive glue storage area; after passing through the cable, the power supply to the cable is completed, based on the puncture protrusion and the After the heat conductive member locks the cable, the handle is pushed to move the extrusion plate toward the injection through-hole in the heat conductive adhesive storage area, and the heat conductive adhesive in the heat conductive adhesive storage area is squeezed into the cable fixing frame, so that the heat conductive adhesive fills the space enclosed by the cable fixing frame and the heat conductive member, and the heat conductive adhesive wraps the cable; the heat conductive adhesive is used to fully and timely introduce the heat of the cable to the heat conductive member, thereby reducing the hysteresis of the temperature measuring unit in obtaining the temperature data of the cable and improving the accuracy of the temperature data obtained by the temperature measuring unit.

[0021] The beneficial effects of the present invention are as follows:

[0022] The signal acquisition intelligent module of the present invention integrates the functions of power acquisition, voltage, temperature and current signal acquisition, and has significant advantages such as compact structure, diverse functions, safety and high efficiency. It can meet the requirements of modern power systems for efficient, safe and intelligent signal acquisition equipment. It realizes:

[0023] (1) Safe and efficient power collection and voltage measurement: Traditional voltage signal acquisition usually requires stripping the cable insulation layer, while the present invention uses a puncture protrusion to pierce the insulation layer, achieving an operation without stripping the cable insulation layer and obtaining power. The puncture protrusion is in direct contact with the cable core, ensuring the stability and reliability of the electrical connection and avoiding safety hazards such as electric shock and short circuit caused by exposed cores. At the same time, the locking screw drives the cable fixing frame to lift up, so that the puncture protrusion and the heat conductor clamp the cable, and the close contact with the cable reliably fixes the position of the cable, and the operation is simple and convenient, which greatly improves the installation efficiency of the signal acquisition intelligent module.

[0024] (2) Multifunctional integrated design;

[0025] This invention integrates voltage acquisition, temperature measurement, and current collection into a single sensor module. Through the synergistic effects of the power acquisition unit, current collection unit, and temperature measurement unit, comprehensive cable status monitoring is achieved. Voltage signal acquisition involves piercing the bumps to contact the cable core, accurately capturing the cable voltage signal, avoiding the complex wiring and high costs of traditional equipment.

[0026] Temperature signal acquisition: The heat of the cable is transferred to the temperature measuring probe through the heat conductor, realizing real-time measurement of the cable temperature, effectively avoiding the hidden danger of power failure caused by excessive cable temperature rise.

[0027] Current signal acquisition: The cable passes through the current acquisition unit and uses the mutual inductance coil to directly complete the current detection, with a simple and efficient design.

[0028] This design not only reduces the use of independent equipment, reduces the size of monitoring equipment and installation space requirements, but also improves the overall integration of the power system.

[0029] (3) Compact structure and easy installation;

[0030] The housing of the present invention is made of insulating material, which is highly durable and safe. It is also designed with a cable hole to facilitate the insertion of cables. The power extraction unit and current acquisition unit are respectively arranged on both sides of the cable hole, so that cable fixing, signal acquisition and temperature measurement can be completed efficiently within a limited space. By driving the locking screw, the cable fixing frame can flexibly adjust the space within the frame to clamp the cable, flexibly adapting to cables of different diameters, and further simplifying the installation process. Compared with traditional equipment, the design of the present invention is more modular, and installation is faster and more convenient, reducing the time and cost of on-site construction.

[0031] (4) Reliable data transmission;

[0032] By electrically connecting the electronic board to the power supply conductors, temperature measurement unit, and current acquisition unit, the system simultaneously acquires power and measurement data and transmits it to the host computer, which then feeds it back to the external controller, achieving intelligent data collection, processing, and transmission throughout the entire process. With accurate process data and fast response, the system provides a reliable module for real-time monitoring of power systems, making it suitable for the upgrade needs of smart grids and modern electrical equipment.

[0033] (5) Strong practicality and applicability

[0034] The present invention is suitable for signal acquisition scenarios of various medium and low voltage power equipment, especially in modern electrical cabinets with limited space and high functional integration requirements. Its compact structure and multifunctional characteristics can effectively improve the installation and maintenance efficiency and integration of equipment, and has broad market application prospects.

[0035] In summary, the signal acquisition intelligent module of the present invention has significant advantages in terms of functional integration, installation convenience, safety and practicality, and can provide reliable technical support for the upgrade of smart grids and power equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 1 is a schematic diagram of the isometric structure of the signal acquisition intelligent module according to the first embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the internal structure of the back side of the sensor according to the first embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the internal structure of the sensor according to the first embodiment of the present invention;

[0040] Figure 4 1 is a partial cross-sectional structural diagram of the host and sensor according to the first embodiment of the present invention;

[0041] Figure 5 1 is a schematic diagram of the isometric structure of the sensor according to the first embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of the isometric structure of the main unit according to the first embodiment of the present invention;

[0043] Figure 71 is a schematic front view of the structure of a sensor according to a second embodiment of the present invention;

[0044] Figure 8 It is a schematic diagram of the internal structure of the sensor of the second embodiment of the present invention.

[0045] The accompanying drawings are numerals as follows:

[0046] 1. Host; 11. Terminal block; 12. Slide rail;

[0047] 2. Sensor; 21. Terminal block interface; 22. Slide slot; 23. Locking hole;

[0048] 3. Power supply unit; 31. Cable fixing frame; 311. Puncture bump; 312. Injection hole; 32. Heat conducting element; 33. Locking screw; 34. Power supply wire;

[0049] 4. Temperature measuring unit; 41. Temperature measuring probe;

[0050] 5. Current acquisition unit;

[0051] 6. Electronic board;

[0052] 7. Housing; 71. Wire hole; 72. Screw support; 73. Push-pull slot; 74. Push-pull block; 741. Extrusion plate; 742. Handle;

[0053] 8. Thermal conductive adhesive storage area; 81. Thermal conductive adhesive;

[0054] 9. Cables. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0056] A specific embodiment provides a signal acquisition intelligent module. During installation, the cable passes through the cable fixing frame of the power taking unit and the current acquisition unit in sequence, and the cable fixing frame clamps the passed cable so that the puncture protrusion directly penetrates the insulation layer of the cable and reaches the core, thereby achieving lossless and safe power taking of the cable and measuring voltage and current; when clamping the cable, the heat conductor of the temperature measuring unit simultaneously clamps the cable and conducts the heat of the cable to the temperature measuring probe to achieve temperature measurement; this effectively solves the problem of the existing electrical cabinet cable signal acquisition device being unable to achieve safe power taking and simultaneous acquisition of voltage, current and temperature signals.

[0057] In addition, all the contents of the configurations shown in the following embodiments are not necessarily essential as the solution to the invention described in the claims.

[0058] The first implementation of the signal acquisition intelligent module is as follows Figures 1 to 6As shown, it includes a host 1 and a sensor 2, the sensor 2 is used to collect cable 9 information including voltage, current and temperature, the host 1 is electrically connected to the sensor 2 to receive the cable 9 information fed back by the sensor 2 and transmit it to the controller of the external electrical cabinet; the sensor 2 includes a power supply unit 3, a temperature measurement unit 4, a current collection unit 5 and an electronic board 6 installed in a shell 7 made of an insulator; the shell 7 is provided with a wire hole 71, the power supply unit 3 and the current collection unit 5 are respectively installed on both sides of the wire hole 71; the power supply unit 3 includes a cable fixing frame 31 made of conductor, a heat conducting member 32, a locking screw 33 and a power lead 34; the cable fixing frame 31 is aligned with the wire hole 71, the top of the cable fixing frame 31 is threadedly connected to the tail end of the locking screw 33, and the head of the locking screw 33 rests on the screw support 72 in the housing 7; one end of the heat conducting member 32 extends into the cable fixing frame 31 and abuts against the end of the locking screw 33, and the other end of the heat conducting member 32 abuts against the temperature measuring probe 41 of the temperature measuring unit 4; the power lead 34 is embedded in the cable fixing frame 31. The cable fixing frame 31 is embedded in the heat conducting member 32; a puncture protrusion 311 is provided at the bottom of the cable fixing frame 31; the external cable 9 passes through the cable fixing frame 31, the wire hole 71 and the current collection unit 5 to realize the detection of the current of the cable 9; the cable fixing frame 31 is driven to be lifted by the locking screw 33, so that the cable 9 is actively squeezed by the puncture protrusion 311 and passively squeezed by the heat conducting member 32, the puncture protrusion 311 pierces the insulation layer of the cable 9, and the puncture protrusion 311 contacts the wire core of the cable 9, so that the current is collected. The wire 34 is electrically connected to the cable 9 through the puncture protrusion 311, the cable fixing frame 31, the locking bolt and the heat conductor 32, thereby achieving safe power supply on the cable 9; the cable 9 is passively squeezed by the heat conductor 32, and the heat of the cable 9 is transferred to the temperature measuring probe 41 of the temperature measuring unit 4 through the heat conductor 32, thereby achieving temperature detection of the cable 9; the electronic board 6 is electrically connected to the power supply wire 34, the temperature measuring unit 4 and the current acquisition unit 5, and the electronic board 6 is electrically connected to the host 1.

[0059] Specifically, the current acquisition unit 5 is a mutual inductance coil. The temperature measurement unit 4 is a temperature sensor 2, and its temperature measurement probe 41 is a thermistor.

[0060] In addition, a locking through hole 23 is provided at the top of the sensor 2, and the locking through hole 23 is vertically connected to the screw support position 72 in the shell 7, that is, the locking through hole 23 is directly connected to the head end face of the locking screw 33, which is used to provide a channel for a screwdriver to extend into the interior of the shell 7 to screw the locking screw 33.

[0061] The signal acquisition intelligent module of the present invention integrates the functions of power acquisition, voltage, temperature and current signal acquisition, and has significant advantages such as compact structure, diverse functions, safety and high efficiency. It can meet the requirements of modern power systems for efficient, safe and intelligent signal acquisition equipment. It realizes:

[0062] (1) Safe and efficient power collection and voltage measurement: Traditional voltage signal acquisition usually requires stripping the insulation layer of the cable 9, while the present invention pierces the insulation layer through the puncture protrusion 311, achieving the operation of stripping the insulation layer of the cable 9 and taking power. The puncture protrusion 311 is in direct contact with the core of the cable 9, ensuring the stability and reliability of the electrical connection and avoiding safety hazards such as electric shock and short circuit caused by the exposed core. At the same time, the locking screw 33 drives the cable fixing frame 31 to lift up, so that the puncture protrusion 311 and the heat conductor 32 clamp the cable 9, and make close contact with the cable 9 to reliably fix the position of the cable 9, and the operation is simple and convenient, which greatly improves the installation efficiency of the signal acquisition intelligent module.

[0063] (2) Multifunctional integrated design;

[0064] The present invention integrates voltage acquisition, temperature measurement, and current collection functions into a single sensor module 2. Through the coordinated action of the power acquisition unit 3, current collection unit 5, and temperature measurement unit 4, comprehensive monitoring of the cable 9 status is achieved. Specifically, voltage signal acquisition: By piercing the bump 311 and contacting the cable core, the cable voltage signal is accurately collected, avoiding the complex wiring and high cost of traditional equipment.

[0065] Temperature signal acquisition: The heat of the cable 9 is transferred to the temperature measuring probe 41 through the heat conductor 32, realizing real-time measurement of the temperature of the cable 9, effectively avoiding the hidden danger of power failure caused by excessive temperature rise of the cable 9.

[0066] Current signal acquisition: The cable 9 passes through the current acquisition unit 5, and the current detection is directly completed using the mutual inductance coil, which has a simple and efficient design.

[0067] This design not only reduces the use of independent equipment, reduces the size of monitoring equipment and installation space requirements, but also improves the overall integration of the power system.

[0068] (3) Compact structure and easy installation;

[0069] The housing 7 of the present invention is made of insulating material, has high durability and safety, and is designed with a wire hole 71 to facilitate the insertion of the cable 9. The power extraction unit 3 and the current acquisition unit 5 are respectively arranged on both sides of the wire hole 71, so that the cable 9 fixation, signal acquisition and temperature measurement can be completed efficiently in a limited space. By driving the locking screw 33, the cable fixing frame 31 can flexibly adjust the space within the frame, clamp the cable 9, and flexibly adapt to cables 9 of different diameters, further simplifying the installation process. Compared with traditional equipment, the design of the present invention is more modular, and the installation is faster and more convenient, reducing the time and cost of on-site construction.

[0070] (4) Reliable data transmission;

[0071] The electronic board 6 is electrically connected to the power supply conductor 34, the temperature measurement unit 4, and the current acquisition unit 5 to simultaneously acquire power and measurement data, transmit it to the host computer 1, and then feed it back to the external controller, achieving intelligent data collection, processing, and transmission throughout the entire process. With accurate process data and fast response, it provides a reliable module for real-time monitoring of power systems, suitable for the upgrade needs of smart grids and modern electrical equipment.

[0072] (5) Strong practicality and applicability

[0073] The present invention is suitable for signal acquisition scenarios of various medium and low voltage power equipment, especially in modern electrical cabinets with limited space and high functional integration requirements. Its compact structure and multifunctional characteristics can effectively improve the installation and maintenance efficiency and integration of equipment, and has broad market application prospects.

[0074] In summary, the signal acquisition intelligent module of the present invention has significant advantages in terms of functional integration, installation convenience, safety and practicality, and can provide reliable technical support for the upgrade of smart grids and power equipment.

[0075] As one optional implementation method,

[0076] Regarding the connection structure between the host 1 and the sensor 2, this embodiment is as follows. Figure 5 and Figure 6 As shown, the host 1 is installed on the top of the sensor 2; a terminal head 11 is provided on the side of the host 1, and a terminal interface 21 is provided on the side of the sensor 2; a slide groove 22 is provided on the top of the sensor 2, and a slide rail 12 is provided on the bottom of the host 1; when assembled, the host 1 is embedded in the top of the sensor 2 from the side, the slide rail 12 is slid into the slide groove 22, and the terminal head 11 is inserted into the terminal interface 21.

[0077] During application, the host 1 and the sensor 2 are combined with the slide rail 12 and the slide groove 22, so that after the sensor 2 is installed on the cable 9, the host 1 and the sensor 2 can be quickly combined and a reliable connection can be achieved; in addition, when the host 1 and the sensor 2 are assembled and combined, the side terminal head 11 is also connected to the terminal interface 21 to achieve a reliable electrical connection; the host 1 and the sensor 2 realize a modular design structure, which helps to achieve high efficiency and low cost in production, manufacturing and use.

[0078] The host 1 and sensor 2 adopt a separate structural design, which is convenient for replacement and reduces maintenance costs.

[0079] Regarding how to reliably install the sensor 2 on the cable 9, this embodiment is as follows: Figure 5 As shown, the top of the sensor 2 is provided with a torque mark for twisting the locking screw 33 so that the locking screw at least reaches the torque mark for driving the piercing protrusion 311 to pierce the insulation layer of the cable 9.

[0080] Specifically, the locking screw 33 drives the cable fixing frame 31 to cause the piercing protrusion 311 to pierce the insulation layer of the cable 9 and reach the core, and the torque is at least 3.5 Nm.

[0081] During application, the top of the sensor 2 is provided with a torque mark of 3.5 Nm. When the operator installs the sensor 2 on the cable 9, the torque mark required to be reached by the puncture locking screw 33 can standardize the installation procedures, so that the puncture protrusion 311 can reliably puncture the insulation layer of the cable 9, providing a guarantee for the sensor 2 to achieve reliable and safe power supply and voltage measurement.

[0082] Regarding the number of the wire holes 71, the power taking unit 3, the temperature measuring unit 4 and the current collecting unit 5 in the sensor 2, this embodiment is as follows: Figures 1 to 3 As shown, a plurality of wire holes 71 are provided in the shell 7; a single power taking unit 3, a single temperature measuring unit 4 and a single current acquisition unit 5 constitute a data acquisition group; each wire hole 71 is correspondingly installed with a group of the data acquisition group; and the plurality of data acquisition groups are electrically connected to the electronic board 6.

[0083] During application, the wire holes 71 and the data acquisition group can be exaggerated to multiple and integrated on the sensor 2. Especially in compact electrical cabinets with special monitoring requirements, a specific number of wire holes 71 and data acquisition groups can be customized to achieve real-time monitoring of multiple cables 9.

[0084] Specifically, at least three wire holes 71 are provided in the housing 7 ; the three wire holes 71 respectively pass through the three-phase power cables L1 , L2 and L3 9 .

[0085] Regarding the shape, number and function of the puncture protrusions 311, this embodiment is as follows. Figure 3 and Figure 4 As shown, the puncture protrusion 311 is a triangular iron piece formed integrally with the cable fixing frame 31. A plurality of the puncture protrusions 311 are arranged side by side at the bottom of the cable fixing frame 31.

[0086] During application, the plurality of piercing protrusions 311 arranged side by side can adapt to the cables 9 of different diameters.

[0087] The second implementation of the signal acquisition intelligent module is as follows Figure 7 and Figure 8 As shown, the difference between this embodiment and the first embodiment is that the side of the cable fixing frame 31 is provided with an injection hole 312; the outer side of the cable fixing frame 31 is provided with a thermal adhesive storage area 8, and the injection hole 312 is connected to the thermal adhesive storage area 8; the side of the shell 7 corresponding to the thermal adhesive storage area 8 is provided with a push-pull groove 73, and a push-pull block 74 is installed in the push-pull groove 73, and the two ends of the push-pull block 74 are respectively an extrusion plate 741 and a handle 742; the handle 742 extends out of the push-pull groove 73, and the extrusion plate 741 extends into the thermal adhesive storage area 8; after passing through the cable 9, the power supply to the cable 9 is completed, based on the puncture convex After the block 311 and the heat conductive member 32 lock the cable 9, the handle 742 is pushed to move the extrusion plate 741 toward the injection hole 312 in the thermal conductive glue storage area 8, and the thermal conductive glue 81 in the thermal conductive glue storage area 8 is squeezed into the cable fixing frame 31, so that the thermal conductive glue 81 fills the space enclosed by the cable fixing frame 31 and the heat conductive member 32, and the thermal conductive glue 81 wraps the cable 9; the thermal conductive glue 81 is used to fully and timely introduce the heat of the cable 9 to the heat conductive member 32, thereby reducing the hysteresis of the temperature measuring unit 4 in obtaining the temperature data of the cable 9 and improving the accuracy of the temperature measuring unit 4 in obtaining the temperature data.

[0088] When applied, the technical solution of the present invention achieves efficient conduction of the temperature of the cable 9 and efficient collection of the temperature signal of the cable 9 by adding the structural design of the thermal adhesive storage area 8, the injection hole 312, the push-pull groove 73 and the push-pull block 74.

[0089] Specifically, this design has significant advantages in terms of operational convenience, heat conduction efficiency, and temperature measurement accuracy: (1) improving the accuracy and response speed of temperature measurement;

[0090] After securing the cable 9 and drawing power, the present invention uses a push-pull block 74 disposed in the push-pull slot 73 to squeeze thermal adhesive 81 from the storage area into the cable securing frame 31, filling the space between the cable securing frame 31 and the thermally conductive element 32 and wrapping the cable 9. The high thermal conductivity of thermal adhesive 81 ensures that heat from the cable 9 is quickly transferred to the thermally conductive element 32 and further to the temperature probe 41 of the temperature measuring unit 4.

[0091] It is achieved that the temperature measurement delay is reduced: in the first embodiment, the heat of the cable 9 is conducted only by relying on the heat conductor 32, and there may be a certain heat transfer lag, and the filling design of the thermal conductive glue 81 can significantly reduce this hysteresis and realize timely temperature data acquisition.

[0092] Improved temperature measurement accuracy: The thermal conductive adhesive 81 fully wraps the cable 9, reducing heat loss during the heat transfer process, ensuring that the data collected by the temperature measuring unit 4 is closer to the actual temperature of the cable 9, and meeting the needs of high-precision temperature measurement.

[0093] (2) Enhance heat conduction efficiency;

[0094] The high thermal conductivity of the thermal conductive adhesive 81 effectively compensates for the problem of insufficient heat conduction efficiency of the single thermal conductive component 32 in a complex environment.

[0095] A complete heat conduction path is achieved: the thermal conductive adhesive 81 is directly filled between the cable 9 and the heat conducting member 32, thus establishing a complete heat conduction path and avoiding heat loss caused by a small contact area or loose contact.

[0096] Uniform distribution: The thermal conductive adhesive 81 is filled through the injection hole 312. Due to its fluidity, it can be evenly distributed between the cable 9 and the thermal conductive member 32, ensuring the stability and consistency of heat conduction.

[0097] (3) Simple operation, convenient and efficient: The design of the push-pull slot 73 and the push-pull block 74 makes the filling process of the thermal adhesive 81 more convenient and efficient. The handle 742 drives the extrusion plate 741 to squeeze the thermal adhesive storage area 8, and the thermal adhesive 81 can be smoothly filled into the cable fixing frame 31 through the injection hole 312. This process does not require additional equipment support and is suitable for rapid on-site installation and adjustment.

[0098] (4) Improve the reliability and durability of the overall structure. In the present invention, the thermal adhesive 81 not only plays a role in heat conduction, but also plays a protective role by wrapping the cable 9. After filling, the thermal adhesive 81 forms a certain buffering and fixing effect on the cable 9, reducing the shaking or deviation of the cable 9 caused by external forces, and improving the stability of the power supply and temperature measurement system. The thermal adhesive 81 wraps the cable 9, which helps to reduce friction and wear between the cable 9 and the fixing frame, thereby extending the service life of the equipment.

[0099] The second embodiment significantly optimizes the temperature signal acquisition process of the temperature measuring unit 4 through the thermal conductive adhesive 81 filling technology, improves the temperature measurement accuracy and response speed, simplifies the operation process, and enhances the stability and reliability of the overall structure.

[0100] The technical features of the above embodiments may be combined arbitrarily. To simplify the description, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. A signal acquisition intelligent module, characterized in that: The system comprises a host and a sensor, wherein the sensor is used to collect cable information including voltage, current and temperature. The host is electrically connected to the sensor to receive the cable information fed back by the sensor and transmit it to the controller of the external electrical cabinet; The sensor includes a power supply unit, a temperature measurement unit, a current collection unit, and an electronic board installed in a housing made of an insulator; a wire hole is provided on the housing, and the power supply unit and the current collection unit are respectively installed on both sides of the wire hole; The power extraction unit includes a cable fixing frame made of a conductor, a heat conducting member, a locking screw, and a power extraction wire; the cable fixing frame is aligned with the wire hole, the top of the cable fixing frame is threadedly connected to the tail end of the locking screw, and the head of the locking screw rests on the screw support in the shell; one end of the heat conducting member extends into the cable fixing frame and abuts against the end of the locking screw, and the other end of the heat conducting member abuts against the temperature measuring probe of the temperature measuring unit; the power extraction wire is embedded in the heat conducting member; The bottom of the cable fixing frame is provided with a puncture protrusion; The external cable passes through the cable fixing frame, the wire hole and the current collection unit to detect the current of the cable; the cable fixing frame is driven to be lifted up by the locking screw, so that the cable is actively squeezed by the puncture protrusion and passively squeezed by the heat conductor, the puncture protrusion pierces the insulation layer of the cable, the puncture protrusion contacts the wire core of the cable, and the power-taking wire is electrically connected to the cable through the puncture protrusion, the cable fixing frame, the locking bolt and the heat conductor, thereby realizing safe power collection on the cable; The cable is passively squeezed by the heat conducting member, and the heat of the cable is transferred to the temperature measuring probe of the temperature measuring unit through the heat conducting member, thereby realizing temperature detection of the cable; The electronic board is electrically connected to the power-taking wire, the temperature measuring unit, and the current collecting unit, and the electronic board is electrically connected to the host; The locking screw drives the cable fixing frame to cause the piercing protrusion to pierce the insulation layer of the cable and reach the core, and the torque is at least 3.5 Nm; A plurality of puncture protrusions are provided at the bottom of the cable fixing frame, and the plurality of puncture protrusions are arranged side by side. The plurality of side-by-side puncture protrusions are used to adapt to the cables with different diameters; The side of the cable fixing frame is provided with a spray through-hole; the outer side of the cable fixing frame is provided with a thermally conductive glue storage area, and the spray through-hole is connected to the thermally conductive glue storage area; the side of the shell corresponding to the thermally conductive glue storage area is provided with a push-pull groove, and a push-pull block is installed in the push-pull groove, and the two ends of the push-pull block are respectively an extrusion plate and a handle; the handle extends out of the push-pull groove, and the extrusion plate extends into the thermally conductive glue storage area; after passing through the cable, the power supply to the cable is completed, and after the cable is locked by the puncture protrusion and the thermal conductive part, the handle is pushed to make the extrusion plate move toward the spray through-hole in the thermally conductive glue storage area, and the thermally conductive glue in the thermally conductive glue storage area is squeezed into the cable fixing frame, so that the thermally conductive glue fills the space enclosed by the cable fixing frame and the thermal conductive part, and the thermally conductive glue wraps the cable; The thermal conductive adhesive is used to fully and timely conduct the heat of the cable to the heat conductive member, reduce the hysteresis of the temperature measuring unit in obtaining the temperature data of the cable, and improve the accuracy of the temperature data obtained by the temperature measuring unit.

2. The signal acquisition intelligent module according to claim 1, characterized in that: The host is installed on the top of the sensor; The side of the host is provided with a terminal head, and the side of the sensor is provided with a terminal interface; the top of the sensor is provided with a slide groove, and the bottom of the host is provided with a slide rail; During assembly, the host is embedded in the top of the sensor from the side, the slide rail is slid into the slide groove, and the wiring terminal head is inserted into the wiring terminal interface.

3. The signal acquisition intelligent module according to claim 2, characterized in that: A locking through hole is provided on the top of the sensor, and the locking through hole is vertically connected to the screw support position in the shell, that is, the locking through hole is connected to the head end face of the locking screw, which is used to provide a channel for a screwdriver to extend into the shell to screw the locking screw.

4. The signal acquisition intelligent module according to claim 3, characterized in that: The top of the sensor is provided with a torque mark for turning the locking screw so that the locking bolt at least reaches a torque mark for driving the piercing protrusion to pierce the insulation layer of the cable.

5. The signal acquisition intelligent module according to claim 1, characterized in that: A plurality of wire holes are provided in the shell; A single power acquisition unit, a single temperature measurement unit and a single current acquisition unit constitute a data acquisition group; Each of the wire holes is correspondingly equipped with a group of the data acquisition groups; and a plurality of the data acquisition groups are electrically connected to the electronic board.

6. The signal acquisition intelligent module according to claim 5, characterized in that: At least three wire holes are provided in the shell; The three wire holes respectively pass through the three-phase power cables L1, L2 and L3.

7. The signal acquisition intelligent module according to claim 1, characterized in that: The puncture protrusion is a triangular iron piece formed integrally with the cable fixing frame.

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