High-precision shunt device

Abstract

The utility model relates to the technical field of diverters, and discloses a high-precision diverter device which comprises a mounting base, a plurality of inserting holes are formed in the top of the mounting base, limiting columns are slidably connected into the inserting holes, the top ends of the limiting columns are fixedly connected with fixing bases, and the fixing bases are fixedly connected with the inserting holes. A brass long block is fixedly connected to the top of the fixing base on the left side, a brass step block is fixedly connected to the top of the fixing base on the right side, clamping grooves are formed in the sides, away from each other, of the two fixing bases, mounting grooves are formed in the tops of the mounting bases, and buckles are rotationally connected to the interiors of the multiple mounting grooves. According to the utility model, the fixed seat is limited and connected through the plurality of jacks on the mounting seat, the buckle is matched with the pull rod to quickly mount the fixed seat, the precision and stability of a power supply after long-time operation can be maintained through the brass long block, the brass step block and the manganese copper pipe, and the temperature drift coefficient of the power supply is reduced to improve the current sampling precision.

Description

Technical Field

[0001] The utility model relates to the technical field of shunts, in particular to a high-precision shunt device. Background Art

[0002] A high-precision shunt is an electronic device used to measure current and is widely used in the fields of electricity, electronics, and communications. Its basic principle is to divide the current into multiple small parts and then accurately measure each small part to obtain the current value of the entire circuit. High-precision shunts have the characteristics of accurate measurement, good stability, and strong anti-interference ability, so they have been widely used in industrial production and scientific experiments.

[0003] The diverter assembly is usually secured to a bracket or mount using bolts and nuts. These bolts and nuts hold the diverter assembly securely in place to prevent it from moving or shaking during use.

[0004] However, when disassembling and maintaining the diverter, the entire process requires the installation and removal of bolts. This operation is not only very time-consuming and labor-intensive, but also the original screw holes are prone to loosening due to repeated use, which can cause the diverter to become unstable in later tests. Therefore, a high-precision diverter device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high-precision shunt device, which aims to improve the problem in the prior art that the original screw holes are easily loosened due to repeated use, thereby causing instability in subsequent tests.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-precision diverter device, including a mounting seat, a plurality of sockets are provided on the top of the mounting seat, and the interiors of the plurality of sockets are slidably connected to limiting columns, the tops of the plurality of limiting columns are fixedly connected to a fixing seat, the top of the left fixing seat is fixedly connected to a brass long block, and the top of the right fixing seat is fixedly connected to a brass step block, the two fixing seats are provided with card grooves on the opposite sides, the top of the mounting seat is provided with a mounting groove, the interiors of the plurality of mounting grooves are rotatably connected to buckles, the front sides of the plurality of buckles are provided with connecting holes, the front side of the mounting seat is provided with a plurality of slide grooves, the interiors of the plurality of slide grooves are slidably connected to pull rods, the outer walls of the plurality of pull rods are fixedly connected to springs, and a sampling mechanism is provided on the top of the mounting seat.

[0007] As a further description of the above technical solution:

[0008] The sampling mechanism includes multiple manganese copper tubes, the left ends of the multiple manganese copper tubes are fixedly connected to the right side of the brass long block, and the right ends of the multiple manganese copper tubes are fixedly connected to the left side of the brass step block. Screw hole 1 is opened at the four corners of the top of the brass long block, screw hole 2 is opened at the top of the brass step block, and sampling holes are opened on the front sides of the brass long block and the brass step block.

[0009] As a further description of the above technical solution:

[0010] The bottoms of the two fixing seats are each provided with a plurality of installation slots, the interiors of the plurality of installation slots are each slidably connected with a heat conducting block, and the bottoms of the plurality of heat conducting blocks are each fixedly connected to the top of the mounting seat.

[0011] As a further description of the above technical solution:

[0012] Copper rods are fixedly connected inside the plurality of heat-conducting blocks, and the bottom ends of the plurality of copper rods are fixedly connected to the top of the mounting seat.

[0013] As a further description of the above technical solution:

[0014] A plurality of fixing plates are fixedly connected to the left and right sides of the mounting seat, and the tops of the plurality of fixing plates are threadedly connected with bolts.

[0015] As a further description of the above technical solution:

[0016] The diameter of the bolt is matched with the inner diameter of the fixing plate.

[0017] As a further description of the above technical solution:

[0018] The front ends of the plurality of pull rods are all fixedly connected with pull rings.

[0019] As a further description of the above technical solution:

[0020] A temperature monitor is fixedly connected to the top of the mounting seat.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the fixing seat is limitedly connected through multiple jacks on the mounting seat, and the buckle inside the mounting seat is rotated at the same time to make the buckle engage with the slots on both sides of the fixing seat, and finally the end of the pull rod is slid into the connecting hole through the spring, so as to complete the rapid installation of the fixing seat; 2. In the utility model, the brass long block and the brass step block are both made of brass, and multiple manganese copper tubes are welded between adjacent ones. The manganese copper tubes can have the performance of low resistance and high conductivity, so that the accuracy and stability of the power supply can be maintained after long-term operation, and its temperature drift coefficient can be reduced to improve the current sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of a high-precision flow divider device proposed by the utility model;

[0024] Figure 2 This is a structural schematic diagram of a sample disassembly device for a high-precision flow divider device proposed by the utility model;

[0025] Figure 3 This is a disassembled diagram of a high-precision diverter device proposed by the utility model.

[0026] Legend:

[0027] 1. Mounting seat; 2. Sampling mechanism; 201. Manganese copper tube; 202. Screw hole one; 203. Screw hole two; 204. Sampling hole; 3. Socket; 4. Limit column; 5. Fixed seat; 6. Slot; 7. Mounting slot; 8. Buckle; 9. Connecting hole; 10. Slide; 11. Pull rod; 12. Spring; 13. Pull ring; 14. Brass long block; 15. Brass step block; 16. Mounting slot; 17. Heat transfer block; 18. Copper rod; 19. Fixed plate; 20. Bolt; 21. Temperature monitor. DETAILED DESCRIPTION

[0028] 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.

[0029] Reference Figure 1 , Figure 2 and Figure 3The utility model provides an embodiment: a high-precision shunt device, including a mounting seat 1, a plurality of jacks 3 are provided on the top of the mounting seat 1, the interiors of the plurality of jacks 3 are slidably connected to limit posts 4, the tops of the plurality of limit posts 4 are fixedly connected to a fixing seat 5, a brass long block 14 is fixedly connected to the top of the left fixing seat 5, a brass step block 15 is fixedly connected to the top of the right fixing seat 5, a card slot 6 is provided on the far side of the two fixing seats 5, a mounting slot 7 is provided on the top of the mounting seat 1, and the interiors of the plurality of mounting slots 7 are rotatably connected There is a buckle 8, and the front sides of the multiple buckles 8 are each provided with connecting holes 9, the front sides of the mounting seat 1 are each provided with multiple sliding grooves 10, the interiors of the multiple sliding grooves 10 are each slidably connected with pull rods 11, the outer walls of the multiple pull rods 11 are each fixedly connected with springs 12, a sampling mechanism 2 is provided on the top of the mounting seat 1, the left and right sides of the mounting seat 1 are each fixedly connected with multiple fixing plates 19, the tops of the multiple fixing plates 19 are each threadedly connected with bolts 20, the diameter of the bolts 20 is adapted to the inner diameter of the fixing plate 19, and the front ends of the multiple pull rods 11 are each fixedly connected with pull rings 13.

[0030] Specifically, a plurality of jacks 3 are provided on the top of the mounting seat 1, and a fixing seat 5 is fixed at the bottom of the brass long block 14 and the brass step block 15. The fixing seat 5 is installed by inserting a plurality of limiting columns 4 at the bottom of the fixing seat 5 into the jacks 3. A clamping groove 6 is provided on both sides of the fixing seat 5, and the clamping buckle 8 in the mounting groove 7 is inserted into the clamping groove 6 by rotating it. The shape of the clamping buckle 8 is similar to a T-shaped shape, and the fixing seat 5 can be fixed through the upper part. A plurality of slide grooves 10 are provided on the front side of the mounting seat 1, and the pull rod 11 is installed and connected through the slide grooves 10. A spring 12 is installed on the outer wall of the pull rod 11, and the pull rod 11 can be driven by the spring 12 to be inserted into the connection hole 9 on the clamping buckle 8, thereby completing the fixed connection of the clamping buckle 8. A fixing plate 19 is fixedly connected on both sides of the mounting seat 1, and the mounting seat 1 is fixed on the test bench or wall by bolts 20 and the fixing plate 19.

[0031] Reference Figure 1 and Figure 2 The sampling mechanism 2 includes a plurality of manganese copper tubes 201, the left ends of the plurality of manganese copper tubes 201 are fixedly connected to the right side of the brass long block 14, the right ends of the plurality of manganese copper tubes 201 are fixedly connected to the left side of the brass step block 15, screw holes 1 202 are provided at the four corners of the top of the brass long block 14, screw holes 203 are provided at the top of the brass step block 15, and sampling holes 204 are provided on the front sides of the brass long block 14 and the brass step block 15.

[0032] Specifically, the brass long block 14 and the brass step block 15 are both made of brass. The brass long block 14 is a rectangular block with four screw holes 202 on the top. The brass step block 15 is a step-shaped block with two screw holes 203 on each of the two upper step surfaces. These four holes are connected from top to bottom. The four through screw holes 203 are screwed in from the top and fixedly connected to the copper bus at the bottom. The brass long block 14 is the power inlet and the brass step block 15 is the power outlet. There are 25 manganese copper tubes 201 in the middle part of the shunt. Both ends of the manganese copper tubes 201 are welded to the inner wall of the brass long block 14 and the brass step block 15. The manganese copper tubes 201 are made of manganese copper and have low resistance and high conductivity. The sampling holes 204 on the brass long block 14 and the brass step block 15 are used as sampling terminals to connect the wires to the main board for current sampling.

[0033] Reference Figure 1 , Figure 2 and Figure 3 A plurality of installation slots 16 are provided at the bottom of the two fixing seats 5, and a heat-conducting block 17 is slidably connected inside the plurality of installation slots 16, and the bottoms of the plurality of heat-conducting blocks 17 are fixedly connected to the top of the mounting seat 1, and a copper rod 18 is fixedly connected inside the plurality of heat-conducting blocks 17, and the bottom ends of the plurality of copper rods 18 are fixedly connected to the top of the mounting seat 1, and a temperature monitor 21 is fixedly connected to the top of the mounting seat 1.

[0034] Specifically, the heat conducting block 17 is inserted through the installation slot 16 at the bottom of the fixing seat 5. The heat conducting block 17 cooperates with the internal copper rod 18 to achieve rapid heat dissipation of the shunt and improve the accuracy of the equipment test. At the same time, the temperature monitor 21 on the top of the mounting seat 1 can conveniently observe the temperature on the equipment at all times.

[0035] Working principle: First, multiple sockets 3 are opened on the top of the mounting seat 1, and the fixing seat 5 is fixed at the bottom of the brass long block 14 and the brass step block 15. The fixing seat 5 is installed by inserting multiple limit columns 4 at the bottom of the fixing seat 5 into the sockets 3. The fixing seat 5 is installed with limit slots 6 on both sides of the fixing seat 5. The buckle 8 in the mounting slot 7 is inserted into the slot 6 by rotating it. The buckle 8 is similar to a T-shaped shape, and the fixing seat 5 can be fixed through the upper part. A plurality of slide grooves 10 are provided on the front side of the mounting base 1, and the pull rod 11 is installed and connected through the slide grooves 10. A spring 12 is installed on the outer wall of the pull rod 11, and the spring 12 can drive the pull rod 11 to be inserted into the connecting hole 9 on the buckle 8, thereby completing the fixed connection of the buckle 8. Fixed plates 19 are fixedly connected on both sides of the mounting base 1, and the mounting base 1 is fixed to the test bench or wall through bolts 20 and the fixing plates 19. Then, when the device needs to be disassembled, the pull ring 13 is pulled to drive the pull rod 11 to slide forward, thereby disengaging from the connecting hole 9. In this way, the device can be quickly disassembled and installed without damaging the original screw hole. The brass long block 14 is the power input port, and the brass step block 15 is the power output port. There are a total of twenty-five manganese copper tubes 201 in the middle part of the shunt. Both ends of the manganese copper tubes 201 are welded to the inner walls of the brass long block 14 and the brass step block 15. The manganese copper tubes 201 are made of manganese copper material and have low resistance and high conductivity. The sampling holes 204 on the brass long block 14 and the brass step block 15 serve as sampling terminals, connecting wires to the main board for current sampling, so that the temperature drift coefficient of the shunt is 50ppm, which can maintain the accuracy and stability of the power supply after long-term operation and reduce its temperature drift coefficient to improve the current sampling accuracy.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision flow divider device, comprising a mounting seat (1), characterized in that: The top of the mounting seat (1) is provided with a plurality of jacks (3), the interiors of the plurality of jacks (3) are slidably connected to limit posts (4), the tops of the plurality of limit posts (4) are fixedly connected to a fixing seat (5), the top of the left fixing seat (5) is fixedly connected to a brass long block (14), the top of the right fixing seat (5) is fixedly connected to a brass step block (15), the two fixing seats (5) are provided with a slot (6) on the opposite sides, the top of the mounting seat (1) is provided with a mounting slot (7), the interiors of the plurality of mounting slots (7) are rotatably connected to buckles (8), the front sides of the plurality of buckles (8) are provided with connecting holes (9), the front side of the mounting seat (1) is provided with a plurality of slide grooves (10), the interiors of the plurality of slide grooves (10) are slidably connected to pull rods (11), the outer walls of the plurality of pull rods (11) are fixedly connected to springs (12), and a sampling mechanism (2) is provided on the top of the mounting seat (1).

2. A high-precision current divider device according to claim 1, characterized in that: The sampling mechanism (2) comprises a plurality of manganese copper tubes (201), the left ends of the plurality of manganese copper tubes (201) are fixedly connected to the right side of the brass long block (14), the right ends of the plurality of manganese copper tubes (201) are fixedly connected to the left side of the brass step block (15), four corners of the top of the brass long block (14) are provided with screw holes one (202), the top of the brass step block (15) is provided with screw holes two (203), and the front sides of the brass long block (14) and the brass step block (15) are provided with sampling holes (204).

3. A high-precision current divider device according to claim 1, characterized in that: The bottoms of the two fixing seats (5) are each provided with a plurality of installation slots (16), the interiors of the plurality of installation slots (16) are each slidably connected to a heat conducting block (17), and the bottoms of the plurality of heat conducting blocks (17) are each fixedly connected to the top of the mounting seat (1).

4. A high-precision current divider device according to claim 3, characterized in that: The interiors of the plurality of heat conducting blocks (17) are all fixedly connected with copper rods (18), and the bottom ends of the plurality of copper rods (18) are all fixedly connected to the top of the mounting seat (1).

5. A high-precision current divider device according to claim 1, characterized in that: A plurality of fixing plates (19) are fixedly connected to the left and right sides of the mounting seat (1), and bolts (20) are threadedly connected to the tops of the plurality of fixing plates (19).

6. A high-precision current divider device according to claim 5, characterized in that: The diameter of the bolt (20) is matched to the inner diameter of the fixing plate (19).

7. A high-precision current divider device according to claim 1, characterized in that: The front ends of the plurality of pull rods (11) are all fixedly connected with pull rings (13).

8. A high-precision current divider device according to claim 1, characterized in that: A temperature monitor (21) is fixedly connected to the top of the mounting seat (1).

Images