Stainless steel resistance regulator

Abstract

This utility model relates to the field of stainless steel resistance regulators and discloses a resistance regulator, comprising a resistance regulator with two outer shells on both sides, which are connected by a second outer shell. A base plate is installed at the bottom of the resistance regulator, and a heat dissipation vent is provided on the outer side of the second outer shell. A high-power stainless steel resistance regulator is used to replace the wire diameter resistor, and the resistance value can be adjusted to replace the change in wire diameter and length. The regulator has a certain resistance value sliding adjustment function. Utilizing Ohm's law, U=IR, voltage is the product of current and resistance. When the resistance R is fixed, the larger the current flowing through the resistor, the larger the voltage drop. Therefore, various voltages can be generated across the resistor by changing the resistance, which meets the output voltage and current index verification of various constant current source power supplies. The stainless steel resistance regulator has high resistance accuracy during field testing, and its operation is simple and the process is simplified.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a stainless steel resistance regulator. Background Technology

[0002] Constant current source high current testing mainly achieves rated current and voltage by changing cable length and cable diameter. In actual power supply testing, it is necessary to test the performance indicators of multiple sets of current and voltage of the machine, which can only be achieved by changing the cable length and diameter. For example, to achieve the testing of a 1000A / 15V constant current source, the cable length and diameter need to be changed continuously on site, which brings great inconvenience to the on-site operators and increases the cost of cables.

[0003] To address this issue, this invention designs a stainless steel resistance adjuster that uses a high-power stainless steel resistance adjuster to replace the wire diameter resistor. By adjusting the resistance value, the problem is solved instead of changing the wire diameter or length. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a stainless steel resistance regulator to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel resistance regulator, comprising a resistance regulator, wherein the resistance regulator has two outer shells on both sides, and the two outer shells are connected by a second outer shell. A base plate is installed at the bottom of the resistance regulator. A heat dissipation vent is opened on the outer side of the second outer shell, and a heat dissipation vent is opened on the outer side of the base plate. A resistance adjustment cavity is installed inside the resistance regulator. Two sets of screws are installed inside the resistance adjustment cavity. A resistance limiting frame and a sleeve are sleeved on the outer side of the screws. The resistance limiting frame is located on both sides of the sleeve, and an adjusting bolt is threaded onto the outside of the screws. A stainless steel plate is connected between the two sets of screws and is installed outside the sleeve. A frame is installed inside the resistance adjustment cavity. The frame is located below the lower screw and is fixedly connected to the resistance adjustment cavity by fastening screws on both sides. A connector and a coil are installed below the frame. A connecting piece is installed at the connection between the lower resistance limiting frame and the sleeve. A connecting connector is installed at the top of the connecting piece. The connector is connected to the connecting connector through a wire.

[0008] Preferably, the number of stainless steel sheets is six groups.

[0009] Preferably, the number of coils is two sets, and the other end of the two sets of coils is connected to the stainless steel sheet on the lower screw.

[0010] Preferably, a magnetic cylinder is provided between each group of adjacent stainless steel sheets, and when one magnetic cylinder is on top, the other magnetic cylinder is located below.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a stainless steel resistance regulator with the following features:

[0013] Beneficial effects:

[0014] A high-power stainless steel resistor adjuster is used to replace the wire diameter resistor. The adjustable resistance value replaces the changes in wire diameter and length. The adjuster has a certain resistance value sliding adjustment function. Utilizing Ohm's law, U=IR, voltage is the product of current and resistance. When the resistance R is fixed, the larger the current flowing through the resistor, the greater the voltage drop. Therefore, by changing the resistance, various voltages can be generated across the resistor, satisfying the verification of the output voltage and current indicators of various constant current source power supplies. In field testing, the stainless steel resistor adjuster has high resistance accuracy, is simple to operate, and simplifies the process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the resistor regulator structure of this utility model;

[0016] Figure 2 This is a top view of the stainless steel outer shell structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the resistor regulator of this utility model;

[0018] Figure 4 This is a top view of the resistor regulator structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the resistance adjustment of this utility model.

[0020] In the diagram: 1. Resistance regulator; 2. Outer casing 1; 3. Outer casing 2; 4. Heat dissipation vent 1; 5. Base plate; 6. Heat dissipation vent 2; 7. Screw; 8. Resistance limiting frame; 9. Sleeve; 10. Adjusting bolt; 11. Stainless steel sheet; 12. Frame; 13. Connector; 14. Coil; 15. Fastening screw; 16. Connecting piece; 17. Connecting connector; 18. Wire. Detailed Implementation

[0021] 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.

[0022] This utility model provides a technical solution:

[0023] Please see Figure 1-4 A stainless steel resistor regulator includes a resistor regulator 1, with outer shells 2 on both sides of the resistor regulator 1, connected by outer shells 3. A base plate 5 is installed at the bottom of the resistor regulator 1. A heat dissipation vent 4 is provided on the outer side of the outer shell 3, and a heat dissipation vent 6 is provided on the outer side of the base plate 5. The design incorporates heat dissipation and resistance heating. A resistor adjustment cavity is installed inside the resistor regulator 1, containing two sets of screws 7. A resistor limiting frame 8 and a sleeve 9 are fitted onto the outer side of each screw 7. The resistor limiting frame 8 is located on both sides of the sleeve 9, and adjusting bolts 10 are threaded onto the external threads of each screw 7. A stainless steel sheet 11 connects the two sets of screws 7. There are six sets of stainless steel sheets 11 installed on the outside of the sleeve 9. A magnetic cylinder is provided between each adjacent set of stainless steel sheets 11, and when one magnetic cylinder is on top, the other magnetic cylinder is on the bottom. A frame 12 is installed inside the resistance adjustment cavity. The frame 12 is located on the lower side of the lower screw 7. The frame 12 is fixedly connected to the resistance adjustment cavity by fastening screws 15 on both sides. A connector 13 and a coil 14 are installed below the frame 12. A connector 16 is installed at the connection between the lower resistance limiting frame 8 and the sleeve 9. A connector 17 is installed at the top of the connector 16. The connector 13 is connected to the connector 17 through a wire 18. There are two sets of coils 14. The other ends of the two sets of coils 14 are respectively connected to the stainless steel sheets 11 on the lower screw.

[0024] This utility model mainly includes a stainless steel resistor regulator. The regulator has a certain resistance value sliding adjustment function. Utilizing Ohm's law, U=IR, voltage is the product of current and resistance. When the resistance R is fixed, the larger the current flowing through the resistor, the greater the voltage drop. Therefore, by changing the resistance, various voltages can be generated across the resistor, which meets the output voltage and current index verification of various constant current source power supplies.

[0025] The benefits of this stainless steel resistance regulator include the following:

[0026] 1. Using a stainless steel resistor adjuster instead of a wire resistor can save on the amount of wire used. For example, to test the output of a constant current source power supply of 1000A / 15V, you only need to adjust the resistance value to 0.015Ω. When a current of 1000A flows through, the voltage at the load end will be 15V.

[0027] If a wire is used to simulate resistance, the formula for calculating wire resistance is R = ρ × L / S.

[0028] The resistivity of the copper wire is ρ = 0.0172, the wire length is L (meters), and the cross-sectional area of ​​the wire is S (mm). 2 ), using 450mm 2 The cable length L = S × R / ρ is approximately 392 meters. If the specifications of the constant current source to be tested on site change, many different cable specifications and lengths will be required, resulting in waste of materials on site.

[0029] 2. When using a stainless steel resistor regulator for on-site testing, the resistance accuracy is high. However, when using cables, the resistance value will change due to temperature, resulting in poor accuracy.

[0030] 3. Stainless steel resistance adjusters are simple to operate and simplify the process during on-site testing. Using cables is more complex and requires more manpower.

[0031] Please see Figure 5 Connect the L and N terminals of the constant current source power supply to the two ends of the resistor respectively. Calculate the test resistance value according to the specifications of the constant current source power supply, for example, 1000A / 15V. According to Ohm's law, adjust the resistance value of the stainless steel resistor adjuster to the 0.015Ω position. Turn on the output of the constant current source power supply and gradually adjust it to 1000A. A 15V voltage will be generated across the resistor. The constant current source power supply has entered the full load state. The resistance value can also be changed to achieve any current and voltage relationship, which is convenient for testers to test and record indicators and various machine states.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stainless steel resistance regulator, characterized in that: The device includes a resistance adjuster (1), with outer shells (2) on both sides. The outer shells (2) are connected by a second outer shell (3). A base plate (5) is installed at the bottom of the resistance adjuster (1). A heat dissipation vent (4) is opened on the outer side of the second outer shell (3), and a heat dissipation vent (6) is opened on the outer side of the base plate (5). A resistance adjustment cavity is installed inside the resistance adjuster (1). Two sets of screws (7) are installed inside the resistance adjustment cavity. A resistance limiting frame (8) and a sleeve (9) are fitted on the outer side of the screws (7). The resistance limiting frame (8) is located on both sides of the sleeve (9), and an adjustment screw is connected to the external thread of the screw (7). A bolt (10) is attached between two sets of screws (7), and a stainless steel sheet (11) is connected between them. The stainless steel sheet (11) is installed on the outside of the sleeve (9). A frame (12) is installed inside the resistance adjustment cavity. The frame (12) is located on the lower side of the lower screw (7). The frame (12) is fixedly connected to the resistance adjustment cavity by fastening screws (15) on both sides. A connector (13) and a coil (14) are installed below the frame (12). A connector piece (16) is installed at the connection between the lower resistance limiting frame (8) and the sleeve (9). A connector (17) is installed at the top of the connector piece (16). The connector (13) is connected to the connector (17) through a wire (18).

2. The stainless steel resistance regulator according to claim 1, characterized in that: The number of stainless steel sheets (11) is six.

3. A stainless steel resistance regulator according to claim 1, characterized in that: The number of coils (14) is two sets, and the other end of the two sets of coils (14) is connected to the stainless steel sheet (11) on the lower screw respectively.

4. A stainless steel resistance regulator according to claim 2, characterized in that: A magnetic cylinder is provided between each group of adjacent stainless steel sheets (11), and when one magnetic cylinder is on top, the other magnetic cylinder is on the bottom.

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