A resistance-inductance integrated wave modulation device and a mounting method thereof

Abstract

This invention relates to the field of resistor and inductor technology, specifically disclosing a waveform modulation device integrating resistor and inductor and its installation method, comprising: an inductor body, the inductor body including an inductor head end and an inductor tail end, the inductor head end having a resistor cavity and the inductor tail end having an inductor slot; an inductor wire, the inductor wire being wound around the surface of the inductor tail end to form an inductor coil; a resistor, the resistor being placed inside the resistor cavity, the inductor head end having a resistor cap; and a resilient contact, the resilient contact being assembled inside the inductor slot, the inductor tail end having a contact cap, the resilient contact being disposed through the contact cap, and the resistor cap, resistor, inductor wire, contact cap, and resilient contact being sequentially electrically connected. This invention utilizes the internal coaxial ventilation design of the inductor body made of insulation, integrating the resistor and inductor into a single design, making the space between the two more fixed and compact, thereby reducing stray inductance in this part of the structure.

Description

Technical Field

[0001] This invention belongs to the field of resistor and inductor technology, and specifically relates to a waveform modulation device integrating resistor and inductor and its installation method. Background Technology

[0002] Inductors and resistors are two fundamental circuit components commonly used in the electrical field. An inductor is an electromagnetic induction element made of wound wire. It presents a short-circuit state to a DC circuit and exhibits resistance to sudden changes in current; the higher the frequency of the current change, the higher the resistance. A resistor, also called a current-limiting element, is a fixed-value component connected in a circuit. It typically has two leads and limits the current flowing through the branch it is connected to. Resistors with a fixed resistance value are called fixed resistors, while those with a variable resistance value are called potentiometers or variable resistors. The resistor referred to in this patent is a fixed resistor.

[0003] First, pulsed power technology is an electrophysical technology that rapidly compresses, converts, or directly releases high-density energy stored slowly to a load. Pulsed power devices are the primary implementation carriers of pulsed power technology. For pulsed power devices above 100kV, pulse rise time is an important characteristic parameter, generally defined as the time required for the pulse to rise from 10% to 90% of its amplitude. In practical experiments, different requirements necessitate different pulse rise times, thus often requiring adjustments to the inductor parameters to flexibly regulate the waveform leading edge. For example, in pulsed power devices with Marx circuits for primary energy storage, the charging time to the secondary winding is positively correlated with the inductor parameters. For pulsed power devices with a double exponential waveform output, the inductor parameters are positively correlated with the leading edge of the output waveform. The formula for the relationship between leading edge time and inductance is: tr = 2.2L / R.

[0004] Secondly, in pulsed power devices, series resistors can limit the short-circuit current, protecting the test equipment and other equipment in the circuit. They have wide applications in insulation platform development, load modulation, and other scenarios. For example, in a series resonant equivalent circuit, high voltage is generated using the principle of LC series resonance, requiring an inductor, resistor, and capacitor connected in series. In a half-wave rectifier circuit, a protective resistor of appropriate value needs to be connected in series to limit the overcurrent through the high-voltage silicon stack and transformer during sample discharge, preventing damage to both. In power frequency high-voltage test devices, two protective resistors are needed to limit overcurrent and overvoltage, respectively protecting the test transformer and the ball electrodes.

[0005] Furthermore, connecting resistors and inductors in series separately in a circuit introduces numerous structural and electrical problems. This separate series connection is detrimental to equipment miniaturization and simplification, as well as component replacement and installation. Moreover, the electrical connection of two components is clearly less convenient and time-saving than connecting a single component. Typically, electrical components are connected using metal washers and screws, a cumbersome process that easily leads to component damage and breakdown. In short, the separate connection and assembly of inductors and resistors results in disadvantages such as a non-compact structure, inflexible assembly and disassembly, susceptibility to damage, and short service life.

[0006] The above background information is provided only to aid in understanding the inventive concept and technical solution of this invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0007] To address the aforementioned shortcomings, this invention provides a resistive and inductive integrated wave tuning device, its installation method, and its polishing method, which can solve the problems of unstable holding of small, thin metallographic samples and uneven polishing of small, thin metallographic samples in the prior art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A resistive-inductor integrated waveform modulation device includes: an inductor body, the inductor body having an inductor head end and an inductor tail end, the inductor head end having a resistor cavity and the inductor tail end having an inductor slot; an inductor wire, the inductor wire being wound around the surface of the inductor tail end to form an inductor coil; a resistor, the resistor being placed inside the resistor cavity, the inductor head end having a resistor cap; and a resilient contact, the resilient contact being assembled inside the inductor slot, the inductor tail end having a contact cap, the resilient contact being disposed through the contact cap, and the resistor cap, resistor, inductor wire, contact cap, and resilient contact being sequentially electrically connected.

[0010] Preferably, the resistor includes a first end and a second end; the first end is fixed with an adapter, which is connected to the resistor cap via a spring guide post; the second end is electrically connected to one end of the inductor wire.

[0011] Preferably, a winding groove is formed on the surface surrounding the tail end of the inductor, and the inductor wire is wound around the winding groove.

[0012] Preferably, a plurality of heat dissipation holes are symmetrically formed around the first end of the inductor.

[0013] Preferably, the resistor cap has several vent holes symmetrically arranged around its perimeter.

[0014] Preferably, a connection hole is provided at the connection between the first end and the last end of the inductor, and one end of the inductor wire passes through the connection hole and connects to the second end of the resistor.

[0015] Preferably, the elastic contact includes a contact spring and a movable contact connected to the contact spring, the spring being assembled in the inductor slot, and the movable contact extending out of the contact cap.

[0016] Preferably, the second end of the resistor is provided with a pan head screw, which is used to connect to the inductor wire.

[0017] Preferably, the outer surfaces of both ends of the resistor are fitted with resistor shielding rings.

[0018] An installation method for a waveform modulation device based on the above-mentioned integrated resistor and inductor includes the following steps: S1, first assemble resistor shielding rings on both ends of the resistor; S2, pass one end of the inductor wire through the connection hole and connect it to the second end of the resistor; S3, install the resistor into the resistor cavity, and assemble the adapter and spring guide post in sequence; S4, connect the resistor cap to the inductor body to fix the first end of the resistor; S5, assemble the elastic contact into the inductor slot, with the contact cap pressing down on the elastic contact, and the movable contact in the elastic contact protruding from the contact cap; S6, wind the inductor wire along the winding groove, and perform surface treatment on the head of the inductor wire and weld it to a metal gasket; S7, connect the wound head of the inductor wire to the contact cap using the metal gasket.

[0019] Compared with existing technologies, the present invention has the following advantages:

[0020] 1. This invention utilizes the internal coaxial ventilation design of the inductor made of insulation to integrate the resistor and inductor into a single design, making the space between the two more fixed and compact, thereby reducing the stray inductance of this part of the structure.

[0021] 2. In this invention, the resistor at the inductor head is connected to the resistor cap via an adapter and a spring guide post. The resistor cap can fit tightly with the connection structure, eliminating the need for complicated wiring and disassembly of the resistor, thus ensuring a reliable connection of the resistor element in the circuit.

[0022] 3. The inductor tail end of the present invention adopts an elastic contact. The contact cap contains a spring of appropriate strength and length, which gives the device a certain degree of flexibility during connection and sufficient elastic force to ensure a tight and reliable connection after connection.

[0023] 4. This invention is particularly suitable for working conditions such as liquid or high-pressure gas conditions. After connecting and assembling each component, it can be directly placed into the matching platform originally designed for the equipment without additional wiring. It can be quickly loaded and unloaded, saving time. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is the front view of the present invention;

[0026] Figure 3 This is a cross-sectional view of the present invention.

[0027] Explanation of key figure labels:

[0028] 1-Inductor slot, 2-Contact spring, 3-Contact washer, 4-Contact cap, 5-Moving contact, 6-Pan head screw, 7-Screw washer, 8-Resistor, 9-Resistor shielding ring, 10-Spring guide post, 11-Adapter, 12-Resistor cap, 13-First threaded hole, 14-Inductor body, 15-Heat dissipation hole, 16-Connection hole, 17-Winding groove, 18-Second threaded hole. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "top surface," "bottom surface," "inner," "outer," "inner side," and "outer side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The embodiments of this invention will now be described according to its overall structure.

[0033] Please see Figure 1-3 A waveform modulation device integrating resistor and inductor includes: an inductor 14, the inductor 14 including an inductor head end and an inductor tail end, the inductor head end having a resistive cavity and the inductor tail end having an inductor slot;

[0034] An inductor wire, wherein the inductor wire is wound around the surface of the end of the inductor to form an inductor coil;

[0035] Resistor 8, the resistor 8 is placed inside the resistor cavity, and the inductor has a resistor cap 12 at its first end;

[0036] The elastic contact is assembled in the inductor slot. The inductor tail end is provided with a contact cap 4. The elastic contact extends through the contact cap 4. The resistor cap 12, resistor 8, inductor wire, contact cap 4 and elastic contact are connected in sequence for conductive conduction.

[0037] In the above scheme, the inductor 14 is made of insulating material. In this embodiment, it is a nylon inductor 14. In other embodiments, it can be made of plexiglass. The resistor cavity and the inductor slot are coaxially opened, and the integrated design of resistor and inductor makes the space of the two more fixed and compact, thereby reducing the stray inductance of this part of the structure. At the same time, the use of elastic contacts at the end of the inductor gives the device a certain degree of flexibility when connecting, and after connection, there is sufficient elasticity to ensure a tight and reliable connection.

[0038] As an optimized solution, in this embodiment, the resistor 8 is divided into a first end and a second end; the first end is fixed with an adapter 11, which is connected to the resistor cap 12 through a spring guide post 10. The spring guide post 10 and the adapter 11 are also made of metal. A part of the spring guide post 10 is embedded in the structure of the resistor cap 12 (or it can be connected by the first threaded hole 13 for easy disassembly). The spring guide post 10 is elastic and serves both as a mechanical connection and an electrical connection, making the two structures tightly connected; the second end of the resistor 8 is provided with a pan head screw 6, which is used to connect with the inductor wire. A screw washer 7 made of metal is also provided between the pan head screw 6 and the second end of the resistor 8. The combination of the pan head screw 6 and the screw washer 7 makes the connection between the inductor wire and the resistor 8 more stable and improves conductivity.

[0039] As an optimization, a winding groove 17 is provided on the surface surrounding the tail end of the inductor. The inductor wire is wound on the winding groove 17, which makes it easy for the inductor wire to be wound into the aforementioned inductor coil along the winding groove 17. This simplifies the operation and improves the overall integrity of the device.

[0040] In this embodiment, in order to facilitate the flow of insulating oil and the heat dissipation of resistor 8, and similarly to facilitate the heat dissipation of gas flow in gas conditions, a number of heat dissipation holes 15 are symmetrically opened around the head end of the inductor; in addition, a number of the above-mentioned heat dissipation holes 15 are symmetrically opened around the resistor cap 12, which helps to facilitate the flow of insulating oil in the insulating oil environment.

[0041] As an optimization, a connection hole 16 is provided at the connection between the first end and the last end of the inductor. One end of the inductor wire passes through the connection hole 16 and connects to the second end of the resistor 8. The connection hole 16 facilitates the connection between the resistor 8 and the inductor coil.

[0042] As an optimized solution, the elastic contact includes a contact spring 2 and a movable contact 5 connected to the contact spring 2. The contact spring 2 is assembled in the inductor slot, and the movable contact 5 extends out of the contact cap 4. The inductor coil is connected and fixed to the contact cap 4 through the second threaded hole 18. Both the movable contact 5 and the contact cap 4 are made of metal, and the contact cap 4 has second threaded holes 18 around its perimeter. After the inductor wire is wound, it is tightly connected to the contact cap 4 through screws of suitable specifications and metal contact washers 3. This allows the device to have a certain degree of flexibility during connection and sufficient elasticity to ensure a tight and reliable connection after connection.

[0043] As an optimization, the outer surfaces of both ends of the resistor 8 are fitted with resistor shielding rings 9 to eliminate surface leakage and interference from external electromagnetic fields.

[0044] Additionally, in other embodiments, the resistor 8 can be selected from resistors of a suitable length and specific specifications for easy replacement. Furthermore, since different resistors may have different lengths, a metal elastic device can be placed at the beginning and end of the resistor 8 within the nylon inductor body 14's resistor cavity to ensure that resistors 8 shorter than the length of the resistor cavity can also be reliably installed and used. The number, depth, and width of the winding groove 17 can be designed as needed. The number, size, and position of the heat dissipation holes can be adjusted according to actual operating conditions.

[0045] An installation method for a waveform modulation device based on the above-mentioned integrated resistor and inductor includes the following steps:

[0046] S1. First, assemble the resistor shielding rings 9 on both ends of the resistor 8, and install the pan head screws 6 on one end of the resistor 8.

[0047] S2. Pass one end of the inductor wire through the resistor-inductor connection hole 16 and connect it to the second end of the resistor 8, specifically at the pan head screw 6 of the resistor 8.

[0048] S3. Install resistor 8 into the resistor cavity of inductor 14, and assemble adapter 11 and spring guide post 10 in sequence.

[0049] S4. Connect the resistor cap 12 to the inductor 14 to fix the first end of the resistor 8.

[0050] S5. The elastic contact is assembled into the inductor slot, the contact cap 4 presses against the contact spring 2, and the movable contact 5 in the elastic contact passes through the contact cap 4.

[0051] S6. The inductor wire is wound along the winding groove 17 to form an inductor coil, and the head of the inductor wire is surface treated and soldered to a metal pad (contact pad 3).

[0052] S7. Connect the wound inductor coil head to the contact cap 4 using a metal washer (contact washer 3) and a screw. Specifically, the screw passes through the metal contact washer 3 of the inductor coil head into the second threaded hole 18.

[0053] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the invention and are protected by patent law.

Claims

1. A waveform modulation device integrating resistance and inductance, characterized in that, include: Inductor (14), the inductor (14) is made of insulating material and includes an inductor head end and an inductor tail end. The inductor head end is provided with a resistive cavity and the inductor tail end is provided with an inductor groove. The resistive cavity and the inductor groove are coaxially opened. An inductor wire, wherein the inductor wire is wound around the surface of the end of the inductor to form an inductor coil; The resistor (8) is placed in the resistor cavity. The inductor has a resistor cap (12) at its first end. The resistor (8) includes a first end and a second end. The first end is fixed with an adapter (11). The adapter (11) is connected to the resistor cap (12) through a spring guide post (10). The second end is electrically connected to one end of the inductor wire. The elastic contact includes a contact spring (2) and a movable contact (5) connected to the contact spring (2). The contact spring (2) is assembled in the inductor slot. The inductor tail end is provided with a contact cap (4). The movable contact (5) is set through the contact cap (4). The resistor cap (12), resistor (8), inductor wire, contact cap (4) and elastic contact are connected in sequence to conduct electricity.

2. The wave tuning device of claim 1, wherein A winding groove (17) is provided on the surface surrounding the tail end of the inductor, and the inductor wire is wound around the winding groove (17) to form the inductor coil.

3. The device according to claim 1, wherein Several heat dissipation holes (15) are symmetrically opened around the first end of the inductor.

4. The device according to claim 3, wherein The resistor cap (12) has several heat dissipation holes (15) symmetrically arranged around its perimeter.

5. The device according to claim 1, wherein A connection hole (16) is provided at the connection between the first end and the last end of the inductor. One end of the inductor wire passes through the connection hole (16) and is connected to the second end of the resistor (8).

6. The device according to claim 1, wherein The second end of the resistor (8) is provided with a pan head screw (6), which is used to connect to the inductor wire.

7. The integrated resistive and inductive wave modulation device according to claim 1, characterized in that, The outer surfaces of both ends of the resistor (8) are fitted with resistor shielding rings (9).

8. A mounting method of the wave modulation device based on the integrated resistance and inductance of any one of claims 1-7, characterized by, Includes the following steps: S1. First, assemble the resistor shielding ring (9) on both ends of the resistor (8); S2. Pass one end of the inductor wire through the connection hole (16) and connect it to the second end of the resistor (8); S3. Install the resistor (8) into the resistor cavity, and assemble the adapter (11) and the spring guide post (10) in sequence; S4. Connect the resistor cap (12) to the inductor (14) to fix the first end of the resistor (8); S5. The elastic contact is assembled into the inductor slot, the contact cap (4) presses down on the elastic contact, and the movable contact (5) in the elastic contact passes through the contact cap (4). S6. Wind the inductor wire along the winding groove (17) and perform surface treatment on the head of the inductor wire and weld it to a metal pad. S7. Connect the finished inductor wire head to the contact cap (4) using a metal washer.

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