Ripple monitoring device for direct-current power supply

Abstract

The utility model discloses a DC power supply ripple monitoring device, which belongs to the technical field of electric power monitoring and comprises a monitor shell, a display mechanism is connected to the side wall of the monitor shell, and a plug-in mechanism is arranged at one end of the upper part of the monitor shell; according to the utility model, the wire pressing assembly is arranged, one end of the wire is connected with the current sensor, then the other end of the wire passes through the supporting plate and is located between the two partition plates, the other end of the wire is inserted into the insertion mechanism, a threaded cylinder is held by a hand, and force is applied to drive the threaded cylinder to rotate, so that the threaded cylinder rotates and moves along the moving frame; the threaded cylinder moves to drive the moving block to move, the moving block moves to extrude the first spring and the pressing plate to move, the pressing plate can be moved conveniently, then the pressing plate and the supporting plate can be used for conducting separation, pressing and fixing operation on wires of different thicknesses conveniently, winding and knotting of the wires are avoided, and follow-up disassembling operation of the wires is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power monitoring, and in particular relates to a direct current power supply ripple monitoring device. Background Art

[0002] Power supply ripple is a high-speed, large-signal voltage and current waveform in the power supply that can easily couple with the probe. It includes the magnetic field coupled from the power transformer, the electric field coupled from the switch node, and the common-mode current generated by the transformer mutual winding capacitance.

[0003] Chinese patent application No. 202121556849.9 discloses a DC power supply ripple monitoring device, including a monitor housing, a display screen is provided on the outer wall of the monitor housing, a warning light is fixedly installed on the outer wall of the monitor housing, a current sensor is provided on the top of the monitor housing, and a heat dissipation hole is opened on the outer wall of the monitor housing. The connector of the wire is inserted into the socket, and the two supporting side plates on both sides of the socket are pulled, and the supporting side plates slide to both sides. Then, the two supporting side plates on both sides slide toward the direction of the wire in the middle position under the pull of the spring until the two supporting side plates clamp the outer wall of the wire from both sides. The two elastic soft card blocks on the outer wall of the outer sleeve ring will be deformed under the extrusion of the inner wall of the arc-shaped groove and stuck into the inside of the limit groove to play a certain limiting and fixing role on the outer sleeve ring. The top protection block can play a certain protective role at the top edge of the support side plate, thereby avoiding the problem of damage to the wire joint caused by friction due to back and forth rotation.

[0004] In the above-mentioned patent, a socket is provided above the housing of the monitor. The socket is directly exposed to the outside, and debris in the external environment can easily fall into the socket, affecting the subsequent plug-in stability of the wire, and then affecting the connection stability between the current sensor and the housing of the monitor, affecting the monitoring effect; in addition, the current sensor and the housing of the monitor are connected by a wire, but the wire is placed above the housing of the monitor, which is prone to entanglement and knotting, affecting the subsequent disassembly operation of the wire. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a DC power supply ripple monitoring device, which has the characteristics of line pressing and protection.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a DC power supply ripple monitoring device, comprising a monitor housing, a display mechanism connected to the side wall of the monitor housing, a plug-in mechanism arranged at the upper end of the monitor housing, a protective component arranged above the monitor housing and at the periphery of the plug-in mechanism, a current sensor connected to the other upper end of the monitor housing, and a wire crimping component arranged between the current sensor and the plug-in mechanism.

[0007] Preferably, the wire pressing assembly includes a pressing plate, a support plate, a perforation, a partition and a movable part. The support plate is connected to the top of the monitor housing, a movable part is provided at one end of the support plate, a pressing plate is provided on one side of the movable part, a plurality of partitions are connected to the top of the support plate, and perforations are provided on the pressing plate at positions corresponding to the partitions.

[0008] Preferably, the moving part includes a moving frame, a first spring, a threaded barrel and a moving block, one end of the support plate is connected to the moving frame, the moving block is inserted into the interior of the moving frame and located at one end of the pressure plate, the first spring is connected between the moving frame and the moving block, and the threaded barrel is connected to one end of the moving frame and located above the moving block.

[0009] Preferably, a guide post is connected inside the moving frame, a guide circular hole is provided on the moving block at a position corresponding to the guide post, and a limit plate is connected to one end of the guide post and located inside the threaded barrel.

[0010] Preferably, the protective assembly includes a protective cover, an end frame, a movable cavity and a sleeve rod. The upper end of the monitor housing is connected to the end frame, the movable cavity is provided inside the end frame, sleeve rods are inserted on both sides of the inside of the movable cavity, and the ends of the two sleeve rods away from the end frame are connected to the protective cover.

[0011] Preferably, the protection component also includes a plug-in column, a second spring and a bottom block, the upper ends of the end frame are plugged with plug-in columns, the bottom of the sleeve rod is connected, and the second spring is connected between the bottom block and the movable cavity.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a wire pressing assembly. After one end of the wire is connected to the current sensor, the other end of the wire is passed through the support plate and is located between the two partitions. The other end of the wire is plugged into the plug-in mechanism. The threaded barrel is held and force is applied to drive the threaded barrel to rotate so that it rotates and moves along the moving frame. The movement of the threaded barrel drives the moving block to move. The movement of the moving block squeezes the first spring and the pressing plate to move, which is convenient for moving the pressing plate, and then it is convenient to use the pressing plate and the support plate to separate, compress and fix the wires of different thicknesses, avoid the entanglement and knotting of the wires, and facilitate the subsequent disassembly of the wires.

[0014] 2. The utility model is provided with a protection component. After the use of the plug-in mechanism is completed, the plug-in column is removed from the end frame and the sleeve rod, and the second spring loses the external force and returns to its original state, driving the bottom block to move inside the moving cavity. The movement of the bottom block drives the sleeve rod to move, and the movement of the sleeve rod drives the protective cover to move. When the two protective covers are fitted to each other, the bottom block stops moving, which is convenient for resetting the two protective covers. Under the action of the two protective covers, the plug-in mechanism can be protected to prevent dust and other debris in the external environment from falling into the plug-in mechanism, thereby ensuring the stability of the subsequent connection between the wires and the plug-in mechanism, and then ensuring the stability of the connection between the current sensor and the housing of the monitor, and then ensuring the DC power supply ripple monitoring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is a cross-sectional view of the connection state of the pressing plate and the supporting plate of the utility model;

[0018] Figure 4 For this utility model Figure 3 The enlarged view of point A in the middle;

[0019] Figure 5 It is a cross-sectional view of the connection state between the end frame and the protective cover of the utility model;

[0020] Figure 6 For this utility model Figure 5 Cross-sectional view in the BB direction;

[0021] Figure 7 For this utility model Figure 6 Enlarged view of point C in the middle.

[0022] In the figure: 1. Monitor housing; 2. Current sensor; 3. Wire pressing assembly; 31. Pressing plate; 32. Support plate; 33. Perforation; 34. Partition; 35. Moving part; 351. Moving frame; 352. First spring; 353. Threaded cylinder; 354. Moving block; 4. Protective assembly; 41. Protective cover; 42. End frame; 43. Moving cavity; 44. Sleeve rod; 45. Plug-in column; 46. Second spring; 47. Bottom block; 5. Display mechanism; 6. Plug-in mechanism. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-7 The utility model provides the following technical solutions: a DC power supply ripple monitoring device, including a monitor housing 1, a display mechanism 5 is connected to the side wall of the monitor housing 1, a plug-in mechanism 6 is arranged at the upper end of the monitor housing 1, a protective component 4 is arranged above the monitor housing 1 and located on the periphery of the plug-in mechanism 6, a current sensor 2 is connected to the other upper end of the monitor housing 1, and a wire pressing component 3 is arranged between the current sensor 2 and the plug-in mechanism 6.

[0026] Specifically, the wire pressing assembly 3 includes a pressing plate 31, a supporting plate 32, a perforation 33, a partition 34 and a moving part 35. The supporting plate 32 is connected to the top of the monitor housing 1, and the moving part 35 is arranged at one end of the supporting plate 32. The pressing plate 31 is arranged on one side of the moving part 35. A plurality of partitions 34 are connected to the top of the supporting plate 32. The perforation 33 is arranged on the pressing plate 31 and at the position corresponding to the partition 34.

[0027] By adopting the above technical solution, after one end of the wire is connected to the current sensor 2, the other end of the wire is passed through the support plate 32 and is located between the two partitions 34, and the other end of the wire is plugged into the plug-in mechanism 6, and then the moving part 35 is used to drive the pressure plate 31 to move downward. During the downward movement of the pressure plate 31, the partition 34 passes through the through hole 33. When the pressure plate 31 moves to fit the upper side wall of the wire, the moving part 35 is stopped. Under the action of the pressure plate 31 and the support plate 32, the wire can be separated, pressed and fixed to avoid the wire from being entangled and knotted.

[0028] Specifically, the moving member 35 includes a moving frame 351, a first spring 352, a threaded barrel 353 and a moving block 354. One end of the support plate 32 is connected to the moving frame 351, and the moving block 354 is inserted into the inside of the moving frame 351 and located at one end of the pressure plate 31. The first spring 352 is connected between the moving frame 351 and the moving block 354. One end of the moving frame 351 and located above the moving block 354 is connected to the threaded barrel 353.

[0029] By adopting the above technical solution, the threaded barrel 353 is held by hand, and force is applied to drive the threaded barrel 353 to rotate, so that it rotates and moves along the moving frame 351. The movement of the threaded barrel 353 drives the moving block 354 to move, and the moving block 354 moves to squeeze the first spring 352 and the pressing plate 31 to move, so as to facilitate the movement of the pressing plate 31, and then facilitate the use of the pressing plate 31 and the support plate 32 to press and fix the wires of different thicknesses.

[0030] Specifically, a guide post is connected inside the moving frame 351, a guide round hole is provided on the moving block 354 at a position corresponding to the guide post, and a limit plate is connected to one end of the guide post and located inside the threaded cylinder 353.

[0031] By adopting the above technical solution, during the movement of the moving block 354, with the cooperation of the guide column and the guide circular hole, a guiding effect can be provided for the movement of the moving block 354, thereby improving the stability of the movement of the moving block 354. At the same time, when the moving block 354 moves to fit the limit plate, the moving block 354 is blocked and stops moving, thereby preventing the moving block 354 from detaching from the guide column.

[0032] When the present embodiment is used, after one end of the wire is connected to the current sensor 2, the other end of the wire is passed through the support plate 32 and positioned between the two partitions 34, and the other end of the wire is plugged into the plug-in mechanism 6. The threaded barrel 353 is held by hand, and force is applied to drive the threaded barrel 353 to rotate, so that it rotates and moves along the moving frame 351. The movement of the threaded barrel 353 drives the moving block 354 to move, and the moving block 354 moves to squeeze the first spring 352 and the pressing plate 31 to move, so as to facilitate the movement of the pressing plate 31, and then facilitate the use of the pressing plate 31 and the support plate 32 to separate, compress and fix wires of different thicknesses, avoid the entanglement and knotting of the wires, and facilitate the subsequent disassembly of the wires. Then, the wires to be monitored are connected to the current sensor 2, and the power ripple monitoring operation is performed on the wires. At the same time, the display mechanism 5 is used to display the monitoring results.

[0033] Example 2

[0034] The present embodiment is different from the first embodiment in that the protection assembly 4 includes a protection cover 41, an end frame 42, a movable cavity 43 and a sleeve rod 44. The upper end of the monitor housing 1 is connected to the end frame 42, the movable cavity 43 is arranged inside the end frame 42, sleeve rods 44 are inserted into both sides of the movable cavity 43, and the ends of the two sleeve rods 44 away from the end frame 42 are connected to the protection cover 41.

[0035] Specifically, the protection assembly 4 further includes a plug-in column 45, a second spring 46 and a bottom block 47. The plug-in columns 45 are plugged into both ends of the upper end frame 42, the bottom block 47 is connected to the lower side of the sleeve rod 44, and the second spring 46 is connected between the bottom block 47 and the moving cavity 43.

[0036] By adopting the above technical solution, after the use of the plug-in mechanism 6 is completed, the plug-in column 45 is removed from the end frame 42 and the sleeve rod 44, and the second spring 46 loses the external force and returns to its original state, driving the bottom block 47 to move inside the movable cavity 43. The movement of the bottom block 47 drives the sleeve rod 44 to move, and the movement of the sleeve rod 44 drives the protective cover 41 to move. When the two protective covers 41 are attached to each other, the bottom block 47 stops moving, which facilitates the reset operation of the two protective covers 41.

[0037] When the present embodiment is used, when the plug-in mechanism 6 is needed, the plug-in column 45 is removed from the end frame 42, and then the two protective covers 41 are moved back to back, the movement of the protective cover 41 drives the sleeve rod 44 to move inside the moving cavity 43, the movement of the sleeve rod 44 drives the bottom block 47 to move, and the movement of the bottom block 47 drives the second spring 46 to compress. When the two protective covers 41 are away from each other and the plug-in mechanism 6 is exposed to the outside, the plug-in column 45 is plugged into the end frame 42 and the sleeve rod 44 to prevent the protective cover 41 from affecting the plug-in operation of the wire. After the plug-in mechanism 6 is used, the plug-in column 45 is removed from the end frame 42 and the sleeve rod 44, and the second spring 46 loses the external force. By restoring the original appearance, the bottom block 47 is driven to move inside the movable cavity 43, the movement of the bottom block 47 drives the sleeve rod 44 to move, and the movement of the sleeve rod 44 drives the protective cover 41 to move. When the two protective covers 41 are fitted together, the bottom block 47 stops moving, which is convenient for realizing the resetting operation of the two protective covers 41. Under the action of the two protective covers 41, the plug-in mechanism 6 can be protected to prevent dust and other debris in the external environment from falling into the plug-in mechanism 6, thereby ensuring the stability of the subsequent connection between the wire and the plug-in mechanism 6, and further ensuring the stability of the connection between the current sensor 2 and the monitor housing 1, and further ensuring the DC power supply ripple monitoring effect.

[0038] The structure and principle of the display mechanism 5 composed of a display screen and a prompt light in the utility model have been disclosed in a DC power supply ripple monitoring device disclosed in Chinese patent application number 202121556849.9, and its working principle is: a display screen is provided on the outer wall of the monitor housing 1, and a prompt light is fixedly installed on the outer wall of the monitor housing 1 and on one side of the display screen. When in use, during the process of power ripple monitoring of the wires, the display screen can display the monitoring results. At the same time, when the power ripple coefficient exceeds the threshold value, the prompt alarm operation is performed through the prompt light.

[0039] The structure and principle of the plug-in mechanism 6 composed of the jack, supporting side plate, fixing groove, mounting block, fixing block, sleeve shaft, spring, outer sleeve ring, connecting block, elastic soft block, preventive protection block, soft card block and limit groove in the utility model are in Chinese patent application number 202121556849.A DC power supply ripple monitoring device disclosed in 9 has been disclosed, and its working principle is: three jacks are opened on the top of the monitor housing 1, and six fixing grooves are opened on the top of the monitor housing. The fixing grooves are rectangular grooves, and the six fixing grooves are respectively located on the left and right sides of the three jacks. A mounting block is fixedly installed inside the fixing groove. The mounting block is a cylindrical structure. The top of the mounting block has an arc-shaped groove. The inner wall of the arc-shaped groove on the mounting block is symmetrically opened with four limiting grooves. The limiting grooves are rectangular grooves. A fixing block is fixedly installed inside the arc-shaped groove on the mounting block. The fixing block is a cylindrical structure. Two sleeve shafts are fixedly installed on the outer wall of the fixing block. The sleeve shaft is a cylindrical structure. The outer wall of the fixing block is fixedly installed with two Spring, the spring is sleeved with the sleeve shaft, six supporting side plates are movably installed on the top of the monitor housing, the supporting side plates are of an arc-shaped structure, and an elastic soft block is fixedly installed on the inner wall of the supporting side plates. A top protective block is fixedly installed on the top of the supporting side plates. The top protective block is a semi-conical ring structure, and the top protective block is made of elastic rubber material. The outer wall of the supporting side plate is fixedly installed with an outer sleeve ring movably connected to the sleeve shaft through two L-shaped connecting blocks. The outer sleeve ring is a circular ring structure, and the outer wall of the outer sleeve ring is fixedly connected to one end of the spring. Two soft card blocks that are clamped together with the limit groove are fixedly installed on the outer wall of the outer sleeve ring. The soft card blocks are trapezoidal blocks, and the soft card blocks have a certain elasticity. The soft card blocks are It is made of elastic rubber. When in use, insert the connector of the wire into the jack, pull the two supporting side plates on both sides of the jack, the supporting side plates slide to both sides, the spring is stretched, the two outer sleeve rings slide to both sides, insert the wire into the inside of the jack, and then the two supporting side plates on both sides slide in the direction of the wire in the middle position under the pull of the spring until the two supporting side plates clamp the outer wall of the wire from both sides. When the supporting side plates slide, the outer sleeve ring will slide to the middle under the action of the spring. When the outer sleeve ring slides to the inside of the arc-shaped groove on the mounting block, the two elastic soft blocks on the outer wall of the outer sleeve ring will be deformed under the extrusion of the inner wall of the arc-shaped groove and stuck into the inside of the limit groove to play a certain limiting and fixing role on the outer sleeve ring. At the same time, an elastic top protection block is arranged on the top of the supporting side plate, which can play a certain protective role at the top edge of the supporting side plate. At this time, the two supporting side plates can be used to play a certain supporting and protective role on the wire joints to avoid the wire joints from rotating back and forth and causing damage to the wire joints. An elastic soft block with a spherical structure and an elastic rubber material is fixedly installed inside the supporting side plate. When the two supporting side plates clamp the wires from both sides, the elastic soft block is deformed and rebounds to squeeze the outer wall of the wires, so that the elastic soft block plays a certain anti-slip protective role when the supporting side plates clamp the wires. .

[0040] Working principle and use process of the utility model: When the plug-in mechanism 6 is needed to be used, the plug-in column 45 is removed from the end frame 42, and then the two protective covers 41 are moved back to back, and the movement of the protective cover 41 drives the sleeve rod 44 to move inside the moving cavity 43, and the movement of the sleeve rod 44 drives the bottom block 47 to move, and the movement of the bottom block 47 drives the second spring 46 to compress. When the two protective covers 41 are away from each other and the plug-in mechanism 6 is exposed to the outside, the plug-in column 45 is plugged into the end frame 42 and the sleeve rod 44 to prevent the protective cover 41 from affecting the plug-in operation of the wire. After one end of the wire is connected to the current sensor 2, the other end of the wire is passed through the support plate 32 and positioned between the two partitions 34, and the other end of the wire is plugged into the plug-in mechanism 6. The threaded cylinder 353 is held and force is applied to drive the threaded cylinder 353 to rotate, so that it rotates and moves along the moving frame 351. The movement of the threaded cylinder 353 drives the moving block 354 to move, and the movement of the moving block 354 squeezes the first spring 352 and the pressing plate 31 to move, so as to facilitate the movement of the pressing plate 31, and then facilitate the use of the pressing plate 31 and the support plate 32. Wires of different thicknesses are separated, pressed and fixed to avoid entanglement and knotting of the wires, which is convenient for the subsequent disassembly of the wires. Then, the wires to be monitored are connected with the current sensor 2, and the power ripple monitoring operation is performed on the wires. At the same time, the display mechanism 5 is used to display the monitoring results. After the monitoring is completed, when the plug-in mechanism 6 is no longer needed, the plug-in column 45 is removed from the end frame 42 and the sleeve rod 44, and the second spring 46 loses the external force and restores its original appearance, driving the bottom block 47 to move inside the moving cavity 43. The movement of the bottom block 47 drives the sleeve rod 44 to move, and the movement of the sleeve rod 44 drives the protective cover 41 to move. When the two protective covers 41 are attached to each other, the bottom block 47 stops moving, which is convenient for realizing the reset operation of the two protective covers 41. Under the action of the two protective covers 41, the plug-in mechanism 6 can be protected to prevent dust and other debris in the external environment from falling into the plug-in mechanism 6, ensuring the stability of the subsequent plug-in of the wire and the plug-in mechanism 6, thereby ensuring the stability of the connection between the current sensor 2 and the monitor housing 1, and thereby ensuring the DC power ripple monitoring effect.

[0041] 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. A DC power supply ripple monitoring device, comprising a monitor housing, characterized in that: A display mechanism is connected to the side wall of the monitor housing, a plug-in mechanism is arranged at the upper end of the monitor housing, a protective component is arranged above the monitor housing and at the periphery of the plug-in mechanism, a current sensor is connected to the other upper end of the monitor housing, and a wire crimping component is arranged between the current sensor and the plug-in mechanism.

2. A DC power supply ripple monitoring device according to claim 1, characterized in that: The wire pressing assembly includes a pressing plate, a supporting plate, a perforation, a partition and a moving part. The supporting plate is connected to the top of the monitor housing, a moving part is arranged at one end of the supporting plate, a pressing plate is arranged on one side of the moving part, a plurality of partitions are connected to the top of the supporting plate, and perforations are arranged on the pressing plate at positions corresponding to the partitions.

3. A DC power supply ripple monitoring device according to claim 2, characterized in that: The moving part includes a moving frame, a first spring, a threaded barrel and a moving block. One end of the support plate is connected to the moving frame, the moving block is inserted into the interior of the moving frame and located at one end of the pressure plate, the first spring is connected between the moving frame and the moving block, and one end of the moving frame and located above the moving block is connected to the threaded barrel.

4. A DC power supply ripple monitoring device according to claim 3, characterized in that: The interior of the moving frame is connected with a guide post, a guide circular hole is arranged on the moving block at a position corresponding to the guide post, and one end of the guide post is located inside the threaded cylinder and connected with a limiting disk.

5. A DC power supply ripple monitoring device according to claim 1, characterized in that: The protection component includes a protective cover, an end frame, a movable cavity and a sleeve rod. The upper end of the monitor housing is connected to the end frame, the movable cavity is arranged inside the end frame, sleeve rods are inserted into both sides of the movable cavity, and the ends of the two sleeve rods away from the end frame are connected to the protective cover.

6. A DC power supply ripple monitoring device according to claim 5, characterized in that: The protection component also includes a plug-in column, a second spring and a bottom block. The upper ends of the end frame are plugged with plug-in columns, the lower part of the sleeve rod is connected with the bottom block, and the second spring is connected between the bottom block and the moving cavity.

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