High-energy-consumption energy-absorbing resistor device

Abstract

The utility model discloses a high-energy-consumption energy-absorbing resistor device, which comprises a metal casing and a plurality of energy-absorbing resistor modules, each energy-absorbing resistor module is provided with two insulating bases and two insulating penetrating rods, the insulating bases are mounted in the metal casing, the insulating penetrating rods are arranged between the two insulating bases, and a plurality of carbon-based composite resistors are sleeved on the insulating penetrating rods. Any two adjacent carbon-based composite resistors located on the same insulating penetrating rod are bonded and conducted through a heat-conducting and electric-conducting adhesive, and any two carbon-based composite resistors located on different insulating penetrating rods and located on the same outermost side are connected with a leading-out terminal in parallel. The plurality of energy-absorbing resistor modules are connected in series and in parallel through leading-out terminals on the energy-absorbing resistor modules; the outer wall of the metal casing is fixedly connected with an insulator assembly, and heat dissipation or heat conduction structures are arranged on the metal casing and between the metal casing and the energy absorption resistor module. The energy absorption resistor device has the characteristics of high voltage, large current, low resistance, no inductance, high power absorption capability, high continuous average power capability, good heat dissipation, good insulation and the like, and meets the use requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of resistance, especially to a high energy consumption energy absorption resistance device. BACKGROUND

[0002] At present, in the application scenarios of power transmission, electric traction, pulse power supply, induction heating and the like, a resistance module / or device with multiple characteristics of high voltage, large current, low resistance, non-inductive, large absorption power capacity, large continuous average power capacity and the like is needed. However, the resistance module / or device in the prior art cannot simultaneously meet the use requirements of the multiple technical characteristics. Therefore, the utility model is provided. SUMMARY

[0003] In order to overcome the above defects, the utility model provides a high energy consumption energy absorption resistance device, which has the characteristics of high voltage, large current, low resistance, non-inductive, large absorption power capacity, large continuous average power capacity, good heat dissipation performance and good ground insulation performance, and well meets the use requirements of various application scenarios such as pulse power supply, power transmission, electric traction, induction heating and the like.

[0004] The utility model discloses a high energy consumption energy absorption resistance device, which comprises a metal casing and a plurality of energy absorption resistance modules, each of the energy absorption resistance modules is provided with two parallelly installed insulation bases in the metal casing and two insulation rods arranged side by side between the two insulation bases, a plurality of carbon-based composite resistors are sleeved on each insulation rod along the length direction of the insulation rod, and any two adjacent carbon-based composite resistors located on the same insulation rod are fixedly connected by heat-conducting and conductive adhesive and electrically connected, and any two carbon-based composite resistors located on different insulation rods and located at the same outermost side are connected by lead terminals.

[0005] In addition, an insulator assembly is fixedly connected to the outer wall of the metal casing, and a heat dissipation structure or a heat conduction structure is further arranged on the metal casing and between the metal casing and the energy absorption resistance modules.

[0006] As a further improvement of the utility model, the insulator assembly is provided with a bottom plate for being fixed to the ground and a plurality of insulators installed at intervals between the bottom plate and the metal casing.

[0007] As a further improvement of the utility model, heat dissipation fins are arranged on the outer wall of the metal casing.

[0008] As a further improvement of the utility model, a heat-conducting silica gel sheet is further fixedly arranged between the inner wall of the metal casing and the energy absorption resistance modules.

[0009] As a further improvement of this utility model, the thermally conductive and electrically conductive adhesive is made of high thermally conductive and electrically conductive silver paste.

[0010] As a further improvement of this utility model, each of the energy-absorbing resistor modules is provided with two lead-out terminals, and each of the lead-out terminals is provided with a first connecting part and two second connecting parts that are integrally connected to the first connecting part. The first connecting part is used as an external connection part, and the two second connecting parts are respectively sleeved on the two insulating rods and are also respectively bonded and fixed to the two carbon-based composite resistors through the thermally conductive and electrically conductive adhesive and are electrically connected.

[0011] As a further improvement of this utility model, the lead-out terminal is a T-shaped sheet structure made of copper.

[0012] In addition, insulating and thermally conductive adhesive is filled between the second connecting part and the insulating rod, as well as between the carbon-based composite resistor and the insulating rod.

[0013] As a further improvement of this utility model, the lead-out terminals on any of the energy-absorbing resistor modules are electrically connected to the lead-out terminals on other energy-absorbing resistor modules by means of riveting, welding or wire connection.

[0014] The beneficial effects of this utility model are: ① This utility model innovatively provides a high-energy-consumption energy-absorbing resistor device, which has the characteristics of high voltage (e.g., 50KV), large current (e.g., 50KA), low resistance (e.g., 1Ω), non-inductive, large power absorption capacity, large continuous average power capacity, good heat dissipation performance, and good insulation performance to ground, thus well meeting the usage requirements of various application scenarios such as pulse power supply, power transmission, electric traction, and induction heating. ② The high-energy-consumption energy-absorbing resistor device described in this utility model has a simple and reasonable structure, flexible design, is easy to process and manufacture, and has low manufacturing cost, thereby facilitating production implementation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the high-energy-consumption energy-absorbing resistor device described in this utility model;

[0016] Figure 2 for Figure 1 A three-dimensional structural diagram of the energy-absorbing resistor module shown in the figure;

[0017] Figure 3 for Figure 2 A schematic diagram of the front view structure of the energy-absorbing resistor module shown in the figure;

[0018] Figure 4 for Figure 2 The diagram shows a side view of the energy-absorbing resistor module.

[0019] With reference to the drawings, the following description is made:

[0020] 1, metal shell; 2, energy absorption resistance module; 20, insulating base; 21, insulating through rod; 22, carbon-based composite resistance; 23, heat-conducting and electricity-conducting glue; 24, lead-out terminal; 241, first connecting part; 242, second connecting part; 25, locking nut; 3, insulator assembly; 30, bottom plate; 31, insulator; 4, heat-conducting silica gel sheet. DETAILED DESCRIPTION

[0021] The preferred embodiment of the present application is described in detail below with reference to the drawings.

[0022] Embodiment:

[0023] Please refer to the drawings Figure 1 to the drawings Figure 4 , the embodiment provides a high-energy-consumption energy absorption resistance device, which comprises a metal shell 1 and a plurality of energy absorption resistance modules 2. Each of the energy absorption resistance modules 2 is provided with two insulating bases 20 installed in parallel in the metal shell 1 and two insulating through rods 21 arranged side by side between the two insulating bases 20. A plurality of carbon-based composite resistances 22 are arranged on each of the insulating through rods 21 along the length direction thereof. Any two adjacent carbon-based composite resistances 22 located on the same insulating through rod 21 are bonded and fixed by heat-conducting and electricity-conducting glue 23 and electrically connected. Any two carbon-based composite resistances 22 located on different insulating through rods 21 and located on the same outermost side are connected by a lead-out terminal 24. The plurality of energy absorption resistance modules 2 are connected in series and / or parallel by the lead-out terminals 24 thereon, so as to meet the use requirements of high voltage (such as 50KV), large current (such as 50KA), low resistance (such as 1Ω), non-inductive, large power absorption capacity, large continuous average power capacity and the like. In addition, an insulator assembly 3 is fixedly connected to the outer wall of the metal shell 1, so as to ensure the safety and functionality of the entire device. In addition, a heat dissipation structure or a heat conduction structure is arranged on the metal shell 1 and between the metal shell 1 and the energy absorption resistance modules 2, so as to improve the heat dissipation performance of the entire device and ensure normal operation of the device.

[0024] The specific structure of the high-energy-consumption energy absorption resistance device of the embodiment is described in detail below.

[0025] First, the structure of the energy absorption resistance module 2 of the embodiment is described in detail. Please continue to refer to the drawings Figure 2 to the drawings Figure 4As shown, in each of the energy absorption resistance modules 2, the insulating bases 20 and the insulating penetrating rods 21 are made of polyethylene, polyvinyl chloride, polytetrafluoroethylene or polyimide material, respectively, and the lengthwise ends of the insulating penetrating rods 21 are respectively penetrated through the two insulating bases 20 and are locked and connected with the two insulating bases 20 by the combination of the lock nuts 25 and the gaskets. It can be understood that, on the one hand, the above-mentioned polytetrafluoroethylene and other materials all have good electrical insulation performance and mechanical properties, which can meet the use requirements of the insulating bases 20 and the insulating penetrating rods 21; on the other hand, the lock and connection by the combination of the lock nuts 25 and the gaskets can achieve very good connection stability and convenient disassembly and assembly.

[0026] The carbon-based composite resistance 22 is formed by mixing a formula amount of graphite and carbon black, pressing into a sheet, and then sintering at high temperature (which belongs to the known technology), and has the advantages of small volume, wide resistance range, high resistance precision, very small inductance, etc. The heat-conducting and electrically-conducting glue 23 adopts high-heat-conducting and electrically-conducting silver glue, specifically MD-140SP electrically-conducting glue produced by LORD Company or EK1000 electrically-conducting glue produced by Tongtai Chemical Company, both of which are silver-filled epoxy resin electrically-conducting glue. Of course, in actual application, it is not limited to the above-mentioned high-heat-conducting and electrically-conducting silver glue, and heat-conducting and electrically-conducting copper glue or aluminum glue, etc. can also be used. It can be understood that, according to different application requirements, a plurality of the carbon-based composite resistances 22 can be connected in series through the insulating penetrating rods 21, and then connected together through the heat-conducting and electrically-conducting glue 23 with high heat-conducting and electrically-conducting properties, to obtain a resistance string with the characteristics of good electrical conductivity, high resistance precision, wide and adjustable resistance range, very small inductance, large absorption power capacity, large continuous average power capacity, etc.; then a plurality of the above-mentioned resistance strings are connected in series and parallel, so as to obtain the resistance main part of the high-energy-consumption energy absorption resistance device which meets the use requirements of high voltage (such as 50KV), large current (such as 50KA), low resistance (such as 1Ω), zero inductance, large absorption power capacity, large continuous average power capacity, etc.

[0027] In addition, two of the lead terminals 24 are respectively arranged in each of the energy absorption resistance modules 2, each of the lead terminals 24 is provided with a first connecting part 241 and two second connecting parts 242 integrally connected with the first connecting part 241, the first connecting part 241 is used as an external connecting part, and the two second connecting parts 242 are respectively sleeved on the two insulating penetrating rods 21 and are also respectively fixed and connected with the two carbon-based composite resistances 22 through the heat-conducting and electrically-conducting glue 23 and electrically conductive. It can be understood that, based on the heat-conducting and electrically-conducting glue 23, the electrical conductivity and heat conduction between the lead terminal 24 and the carbon-based composite resistance 22 are very good.

[0028] Further, the lead-out terminal 24 is a T-shaped sheet structure made of copper material; the second connecting part 242 of the lead-out terminal 24 and the insulating penetrating rod 21, and the carbon-based composite resistor 22 and the insulating penetrating rod 21 are filled with insulating heat-conducting glue, so as to improve the structural stability, electrical insulation and heat conductivity of the energy-absorbing resistor module 2.

[0029] In addition, when the plurality of energy-absorbing resistor modules 2 are connected in series and parallel according to design requirements, the lead-out terminal 24 on any energy-absorbing resistor module 2 can be electrically connected to the lead-out terminal 24 on other energy-absorbing resistor modules 2 by riveting, welding or wire connection.

[0030] Next, please continue to refer to the accompanying Figure 1 As shown in the drawings, the specific structure of the insulating subassembly 3 in the embodiment is that the insulating subassembly 3 is provided with a bottom plate 30 for being fixed on the ground and a plurality of insulators 31 which are installed between the bottom plate 30 and the metal casing 1, and the insulator 31 can adopt a ceramic insulator which is a known device and is not described in detail here.

[0031] The metal casing 1 is made of aluminum alloy, and the metal casing 1 is provided with heat dissipation fins also made of aluminum alloy on the outer wall of the metal casing 1, and a heat-conducting silica gel sheet 4 is fixedly arranged between the inner wall of the metal casing 1 and the energy-absorbing resistor module 2. It can be understood that the metal casing 1 and the heat dissipation fins have high heat conduction performance, and the heat-conducting silica gel sheet 4 has excellent insulation and heat conduction functions, and the above measures can quickly conduct the heat generated inside to ensure the normal operation of the equipment.

[0032] In summary, the high-energy-consumption energy-absorbing resistor device has the characteristics of high voltage, large current, low resistance, non-inductive, large absorption power, large continuous average power, good heat dissipation performance, good ground insulation performance, etc., which well meets the use requirements of various application scenarios such as pulse power supply, power transmission, power traction, induction heating, etc. Moreover, the high-energy-consumption energy-absorbing resistor device also has the characteristics of simple and reasonable structure, flexible design, easy processing and manufacturing, low manufacturing cost, etc., which is beneficial to production implementation.

[0033] In the above description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the above description is merely a preferred embodiment of the present application, and the present application can be carried out in many different ways than described herein, and the present application is not limited to the above disclosed specific implementation. Meanwhile, any person skilled in the art can utilize the above disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present application, or modify them into equivalent embodiments with equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solutions of the present application, still belongs to the protection scope of the technical solutions of the present application.

Claims

1. A high-energy-consumption energy-absorbing resistor device, characterized in that: The device includes a metal housing (1) and multiple energy-absorbing resistor modules (2). Each energy-absorbing resistor module (2) has two insulating bases (20) installed in parallel in the metal housing (1) and two insulating rods (21) arranged side by side between the two insulating bases (20). Multiple carbon-based composite resistors (22) are spaced along the length of each insulating rod (21). Any two adjacent carbon-based composite resistors (22) located on the same insulating rod (21) are bonded and connected by thermally conductive and conductive adhesive (23) and are electrically connected. Any two carbon-based composite resistors (22) located on different insulating rods (21) and both located on the same outermost carbon-based composite resistor (22) are connected by lead terminals (24). Multiple energy-absorbing resistor modules (2) are connected together in series and / or in parallel through their lead terminals (24). In addition, an insulator assembly (3) is fixedly connected to the outer wall of the metal housing (1), and a heat dissipation structure or a heat conduction structure is provided on the metal housing (1) and between it and the energy absorption resistor module (2).

2. The high-energy-consumption energy-absorbing resistor device according to claim 1, characterized in that: The insulator assembly (3) is provided with a base plate (30) for fixing to the ground and a plurality of insulators (31) spaced between the base plate (30) and the metal housing (1).

3. The high-energy-consumption energy-absorbing resistor device according to claim 1, characterized in that: Heat dissipation fins are provided on the outer wall of the metal casing (1).

4. The high-energy-consumption energy-absorbing resistor device according to claim 1, characterized in that: A thermally conductive silicone sheet (4) is also fixedly disposed between the inner wall of the metal housing (1) and the energy-absorbing resistor module (2).

5. The high-energy-consumption energy-absorbing resistor device according to claim 1, characterized in that: The thermally conductive and electrically conductive adhesive (23) is made of high thermally conductive and electrically conductive silver paste.

6. The high-energy-consumption energy-absorbing resistor device according to claim 1, characterized in that: Each of the energy-absorbing resistor modules (2) is provided with two lead-out terminals (24), and each of the lead-out terminals (24) is provided with a first connecting part (241) and two second connecting parts (242) that are integrally connected to the first connecting part (241). The first connecting part (241) is used as an external connection part. The two second connecting parts (242) are respectively sleeved on the two insulating rods (21) and are also bonded and fixed to the two carbon-based composite resistors (22) through the thermally conductive and conductive adhesive (23) and electrically conductive.

7. The high-energy-consumption energy-absorbing resistor device according to claim 6, characterized in that: The lead-out terminal (24) is a T-shaped sheet structure made of copper. In addition, insulating thermally conductive adhesive is filled between the second connecting part (242) and the insulating rod (21), and between the carbon-based composite resistor (22) and the insulating rod (21).

8. The high-energy-consumption energy-absorbing resistor device according to claim 1, characterized in that: The lead-out terminal (24) on any of the energy-absorbing resistor modules (2) is electrically connected to the lead-out terminal (24) on other energy-absorbing resistor modules (2) by means of riveting, welding or wire connection.

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