Manganin shunt with protective device

Abstract

The utility model discloses a manganin diverter with a protective device, which comprises a diverter body and the protective device arranged outside the diverter, the protective device is detachably connected with the diverter body, the protective device comprises a cylindrical insulating cylinder, the bottom of the insulating cylinder is provided with a semi-arc clamping cover plate, and the protective device is detachably connected with the cylindrical insulating cylinder. The shunt body penetrates through the whole insulating cylinder, reinforcing structures are symmetrically arranged close to the side wall of the insulating cylinder, the shunt body comprises two manganin sampling blocks, a plurality of guide rods are connected between the two manganin sampling blocks, and binding posts I are arranged on the outer walls of the manganin sampling blocks. According to the manganin diverter, the protection device is additionally arranged outside the manganin diverter, the protection device is detachably connected with the diverter body, the manganin diverter can be rapidly installed according to needs, and the insulation cylinder of the protection device can reinforce insulation protection from the outside.

Description

Technical Field

[0001] This utility model relates to the field of shunt technology, specifically a manganese copper shunt with a protective device. Background Technology

[0002] A shunt is used to measure direct current. It is made based on the principle that a voltage is generated across a resistor when a direct current passes through it. A shunt is essentially a resistor with a very small resistance. When a direct current flows through it, a voltage drop is generated, which is displayed on a DC ammeter. A DC ammeter is actually a voltmeter, and the ammeter and shunt are used together. Manganese-copper shunts are mainly used for voltage and current sampling in various instruments, especially in electronic energy meters. The voltage generated by the voltage drop across the manganese-copper resistive element of the shunt powers the energy meter's measurement sampling. It offers high accuracy and wide applicability.

[0003] Manganese-copper shunts are precision resistive elements used in high-level metering instruments such as voltage, current, bridge, potentiometers, and others. They are particularly suitable for manufacturing standard resistors for reference applications. Manganese-copper shunts (manganese-copper sampling resistors) are widely used in various digital energy meters as energy measurement elements, and they are made from manganese-copper precision resistance alloy materials. Manganese-copper shunts are generally used with ammeters, which are connected in parallel across the shunt. The main parameters of the shunt are the rated measured current and the corresponding millivolt rating. In the energy meter industry, manganese-copper shunts are generally used with energy metering chips. Currently, the positive and negative analog input pins of the current channel of metering chips from major manufacturers use a fully differential input method. The maximum input voltage Vpp under normal operation is ±1000mV, and the maximum withstand voltage is ±6V.

[0004] Most existing manganese-copper shunts lack external protective structures, making them prone to dust infiltration or damage to their external structure. They also have poor insulation and are inconvenient for maintenance. Therefore, it is necessary to design corresponding technical solutions to address these technical problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a manganese-copper shunt with a protective device, which solves the problems that most existing manganese-copper shunts lack external protective structures, are prone to dust infiltration or damage to their external structures, and have poor insulation, making them inconvenient to maintain.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a manganese copper shunt with a protective device, comprising a shunt body and a protective device disposed outside the shunt. The protective device is detachably connected to the shunt body. The protective device includes a cylindrical insulating cylinder with a semi-circular arc-shaped retaining plate at the bottom. The shunt body penetrates the entire insulating cylinder, and symmetrical reinforcement structures are provided on the side wall near the insulating cylinder. The shunt body includes two manganese copper sampling blocks, and several guide rods are connected between the two manganese copper sampling blocks. Each manganese copper sampling block has a terminal block on its outer wall.

[0009] As a further preferred embodiment of this utility model, the manganese copper sampling block is provided with symmetrical semi-cylindrical protrusions on its sidewall, and the reinforcing structure is engaged with the protrusions.

[0010] As a further preferred embodiment of this utility model, the reinforcing structure includes a protruding strip, on which a plurality of sleeves are equidistantly arranged, a movable rod is inserted into the sleeve, the inner end of the movable rod extends into the interior of the insulating cylinder and a compression spring is sleeved on the outer wall, and a pressure plate corresponding to the protrusion is connected to the inner end of the movable rod.

[0011] As a further preferred embodiment of this utility model, two column plates are provided near the opening of the insulating cylinder. The column plates are symmetrically distributed on both sides of the splitter body. A threaded tube is provided on the top of the column plate, and a screw is inserted into the threaded tube. The inner end of the screw is threadedly connected to the splitter body.

[0012] As a further preferred embodiment of the present invention, a strip-shaped expansion slot frame is provided at the top of the insulating cylinder, and a cover plate is connected to the top of the expansion slot frame by an insertion method.

[0013] As a further preferred embodiment of this utility model, the top of the manganese copper sampling block is connected to a protrusion, and the top of the protrusion is equidistantly connected to a plurality of terminals.

[0014] As a further preferred embodiment of this utility model, the bottom of the cover plate is provided with a plurality of columnar wire tubes at equal intervals, and the bottom sides of the cover plate are symmetrically provided with buckles for installation, and the buckles are provided with a plurality of mounting holes at equal intervals.

[0015] As a further preferred embodiment of this utility model, the outer wall of the insulating cylinder is symmetrically provided with elongated slots.

[0016] (III) Beneficial Effects

[0017] This invention provides a manganese-copper shunt with a protective device. It has the following advantages:

[0018] This utility model of a manganese-copper shunt includes an external protective device. The protective device is detachably connected to the shunt body and can be quickly installed as needed. The insulating cylinder of the protective device can provide enhanced insulation protection from the outside. A reinforcing structure is symmetrically arranged on the side wall near the insulating cylinder. Several sleeves are evenly spaced on the protrusions of the reinforcing structure. A movable rod is inserted into the sleeve. The inner end of the movable rod extends into the interior of the insulating cylinder and a compression spring is fitted on the outer wall. The pressure plate at the inner end of the movable rod engages with the protrusion on the shunt body for quick compression and fixation. Two column plates are provided at the opening of the insulating cylinder. A threaded tube is provided at the top of the column plate. A screw is inserted into the threaded tube and fixed to the shunt body using the screw.

[0019] The bottom of the insulating cylinder of this utility model is provided with a semi-circular arc-shaped cover plate. Several columnar wire tubes are equidistantly arranged at the bottom of the cover plate, which can be used to manage other circuits. The bottom sides of the cover plate are symmetrically fastened with buckles, which can be used to install the entire protective device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a side view of the structure of this utility model;

[0022] Figure 3 This is a front view structural diagram of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the shunt body of this utility model;

[0024] Figure 5 This is a side view of the main body of the shunt of this utility model.

[0025] In the diagram, 1. Diverter body; 2. Insulating cylinder; 3. Cover plate; 4. Manganese copper sampling block; 5. Guide rod; 6. Terminal 1; 7. Protrusion; 8. Protrusion strip; 9. Sleeve; 10. Movable rod; 11. Compression spring; 12. Pressure plate; 13. Column plate; 14. Threaded tube; 15. Expansion slot frame; 16. Cover plate; 17. Protrusion; 18. Terminal 2; 19. Conductor tube; 20. Buckle plate; 21. Groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a manganese copper shunt with a protective device, including a shunt body 1 and a protective device disposed outside the shunt. The protective device is detachably connected to the shunt body 1. The protective device includes a cylindrical insulating cylinder 2, and a semi-circular arc-shaped retaining plate 3 is provided at the bottom of the insulating cylinder 2. The shunt body 1 penetrates the entire insulating cylinder 2. A reinforcing structure is symmetrically arranged on the side wall near the insulating cylinder 2. The shunt body 1 includes two manganese copper sampling blocks 4, and a plurality of guide rods 5 are connected between the two manganese copper sampling blocks 4. A terminal post 6 is provided on the outer wall of each manganese copper sampling block 4.

[0028] The manganese copper sampling block 4 has symmetrical semi-cylindrical protrusions 7 on its side wall. The reinforcing structure is engaged with the protrusions 7. The entire diverter body 1 can be quickly fixed by engaging the protrusions 7 with the reinforcing structure.

[0029] The reinforcing structure includes a protruding strip 8, on which several sleeves 9 are equidistantly arranged. A movable rod 10 is inserted into the sleeve 9. The inner end of the movable rod 10 extends into the interior of the insulating cylinder 2 and a compression spring 11 is sleeved on its outer wall. A pressure plate 12 corresponding to the protrusion 7 is connected to the inner end of the movable rod 10. By stretching the movable rod 10 in the sleeve 9 on the protruding strip 8, and with the elastic force of the compression spring 11, the pressure plate 12 and the protrusion 7 can be quickly snapped together, and can be quickly limited and fixed.

[0030] Two column plates 13 are provided near the opening of the insulating cylinder 2. The column plates 13 are symmetrically distributed on both sides of the splitter body 1. A threaded tube 14 is provided on the top of the column plate 13. A screw is inserted into the threaded tube 14. The inner end of the screw is threadedly connected to the splitter body 1. By inserting the screw into the threaded tube 14 and then inserting the end of the screw into the side wall of the splitter body 1, reinforcement is achieved.

[0031] A strip-shaped expansion slot frame 15 is provided at the top of the insulating cylinder 2. A cover plate 16 is connected to the top of the expansion slot frame 15 by plugging it in. Other connected lines can be discharged by using the expansion slot frame 15, or the cover plate 16 can be used for sealing.

[0032] The top of the manganese copper sampling block 4 is connected to a tab 17, and several terminals 18 are equidistantly connected to the top of the tab 17. The circuit is connected by using the terminals 18.

[0033] The bottom of the cover plate 3 is provided with several columnar wire tubes 19 at equal intervals, and the bottom sides of the cover plate 3 are symmetrically provided with mounting plates 20 for installation. The mounting plates 20 are provided with several mounting holes at equal intervals. The wire tubes 19 are used to store the wires, and the mounting holes on the mounting plates 20 can be used to install the entire protective device.

[0034] The outer wall of the insulating cylinder 2 is symmetrically provided with long strip-shaped slots 21, which can be used to observe the internal components and circuits and also enhance the heat dissipation effect.

[0035] Working Principle: The manganese-copper shunt has an external protective device that is detachably connected to the shunt body 1. This device allows for quick installation as needed. The insulating cylinder 2 of the protective device provides external reinforcement. Symmetrical reinforcement structures are arranged on the sidewall near the insulating cylinder 2. Several sleeves 9 are evenly spaced on the protruding strips 8 of the reinforcement structures. A movable rod 10 is inserted into each sleeve 9. The inner end of the movable rod 10 extends into the insulating cylinder 2, and a compression spring 11 is fitted on its outer wall. The pressure plate 12 at the inner end of the movable rod 10 interacts with the shunt. The protrusions 7 on the main body 1 snap together and are quickly squeezed and fixed. Two column plates 13 are provided at the opening of the insulating cylinder 2. A threaded tube 14 is provided at the top of the column plate 13. A screw is inserted into the threaded tube 14 and fixed to the shunt body 1 using the screw. A semi-circular arc-shaped cover plate 3 is provided at the bottom of the insulating cylinder 2. Several columnar wire tubes 19 are provided at equal intervals at the bottom of the cover plate 3. The wire tubes 19 can be used to manage other lines. The cover plate 3 has symmetrical buckle plates 20 on both sides of the bottom. The entire protective device can be installed using the buckle plates 20.

[0036] The components of this utility model are: 1. Diverter body; 2. Insulating cylinder; 3. Cover plate; 4. Manganese copper sampling block; 5. Guide rod; 6. Terminal one; 7. Protrusion; 8. Protruding strip; 9. Sleeve; 10. Movable rod; 11. Compression spring; 12. Pressure plate; 13. Column plate; 14. Threaded tube; 15. Expansion slot frame; 16. Cover plate; 17. Protrusion; 18. Terminal two; 19. Conductor tube; 20. Buckle plate; 21. Slot. All components are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. This utility model solves the problems of most existing manganese copper diverters lacking external protective structures, being prone to dust seepage or damage to their external structure, having poor insulation, and being inconvenient for maintenance. This utility model, through the combination of the above components, adds an external protective device to the manganese copper diverter. The protective device is detachably connected to the shunt body, allowing for quick installation as needed. The insulating cylinder of the protective device provides enhanced insulation protection from the outside. A symmetrical reinforcement structure is arranged near the side wall of the insulating cylinder. Several sleeves are evenly spaced on the protrusions of the reinforcement structure, and a movable rod is inserted into each sleeve. The inner end of the movable rod extends into the insulating cylinder, and a compression spring is fitted on its outer wall. The pressure plate at the inner end of the movable rod engages with the protrusions on the shunt body for quick compression and fixation. Two column plates are located at the opening of the insulating cylinder. A threaded tube is installed at the top of the column plates, and a screw is inserted into the threaded tube for fixing to the shunt body. A semi-circular retaining plate is located at the bottom of the insulating cylinder. Several columnar wire tubes are evenly spaced at the bottom of the retaining plate, allowing for the routing of other wiring. Symmetrical fastening plates are located on both sides of the bottom of the retaining plate, allowing for the installation of the entire protective device.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A manganese-copper shunt with a protective device, comprising a shunt body (1) and a protective device disposed outside the shunt, characterized in that: The protective device is detachably connected to the shunt body (1). The protective device includes a cylindrical insulating cylinder (2) and a semi-circular arc-shaped cover plate (3) is provided at the bottom of the insulating cylinder (2). The shunt body (1) penetrates the entire insulating cylinder (2). A reinforcing structure is symmetrically provided on the side wall near the insulating cylinder (2). The shunt body (1) includes two manganese copper sampling blocks (4) and several guide rods (5) are connected between the two manganese copper sampling blocks (4). A terminal post (6) is provided on the outer wall of each manganese copper sampling block (4).

2. The manganese-copper shunt with a protective device according to claim 1, characterized in that: The manganese copper sampling block (4) has symmetrically arranged semi-cylindrical protrusions (7) on its side wall, and the reinforcing structure is engaged with the protrusions (7).

3. A manganese-copper shunt with a protective device according to claim 2, characterized in that: The reinforcing structure includes a protrusion (8), on which a plurality of sleeves (9) are equidistantly arranged. A movable rod (10) is inserted into the sleeve (9). The inner end of the movable rod (10) extends into the interior of the insulating cylinder (2) and a compression spring (11) is sleeved on its outer wall. A pressure plate (12) corresponding to the protrusion (7) is connected to the inner end of the movable rod (10).

4. A manganese-copper shunt with a protective device according to claim 1, characterized in that: Two column plates (13) are provided near the opening of the insulating cylinder (2). The column plates (13) are symmetrically distributed on both sides of the splitter body (1). A threaded tube (14) is provided on the top of the column plate (13). A screw is inserted in the threaded tube (14). The inner end of the screw is threadedly connected to the splitter body (1).

5. A manganese-copper shunt with a protective device according to claim 1, characterized in that: A strip-shaped expansion slot frame (15) is provided at the top of the insulating cylinder (2), and a cover plate (16) is connected to the top of the expansion slot frame (15) by insertion.

6. A manganese-copper shunt with a protective device according to claim 1, characterized in that: The top of the manganese copper sampling block (4) is connected to a tab (17), and the top of the tab (17) is connected to a plurality of terminals (18) at equal intervals.

7. A manganese-copper shunt with a protective device according to claim 1, characterized in that: The bottom of the cover plate (3) is provided with several columnar wire tubes (19) at equal intervals, and the bottom sides of the cover plate (3) are symmetrically provided with buckle plates (20) for installation, and the buckle plates (20) are provided with several mounting holes at equal intervals.

8. A manganese-copper shunt with a protective device according to claim 1, characterized in that: The outer wall of the insulating cylinder (2) is symmetrically provided with long strip-shaped slots (21).

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