CN217010681U - Mounting structure of high-power switch device absorption resistor - Google Patents
Mounting structure of high-power switch device absorption resistor Download PDFInfo
- Publication number
- CN217010681U CN217010681U CN202123364292.1U CN202123364292U CN217010681U CN 217010681 U CN217010681 U CN 217010681U CN 202123364292 U CN202123364292 U CN 202123364292U CN 217010681 U CN217010681 U CN 217010681U
- Authority
- CN
- China
- Prior art keywords
- cooling body
- absorption resistor
- switch device
- power switch
- mounting structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to the technical field of electrical equipment, in particular to an installation structure of an absorption resistor of a high-power switch device, which comprises a cooling body, the high-power switch device and the absorption resistor, wherein a bolt hole electrically connected with an external copper bar is formed in the rear end of the cooling body, and one surface of the high-power switch device is tightly pressed with one surface of the cooling body; the absorption resistor is arranged on the cooling body; the absorption resistor is fixed on the cooling body, and one of the electric connecting ends of the absorption resistor is directly electrically connected with the cooling body on site.
Description
Technical Field
The utility model relates to the technical field of electrical equipment, in particular to an installation structure of a high-power switch device absorption resistor.
Background
In order to limit the rising speed of the terminal voltage, prevent the switch device from being damaged by the excessive dv/dt, and ensure the safe operation of the switch device, an RC absorption network is often connected in parallel to two ends of the high-power switch device, and a typical application is as shown in fig. 3, and the rising rate of the voltage is limited by using the characteristic that the terminal voltage of the capacitor cannot change suddenly. Since the circuit always has inductance (transformer leakage inductance or load inductance), the absorption resistor connected in series with the capacitor can play a damping role, which can prevent R, L, C circuit from damaging the switch device due to the overvoltage generated by oscillation at two ends of the capacitor in the transition process, and simultaneously, prevent the capacitor from discharging too large current through the switch device to cause overcurrent to damage the switch device. The conventional absorption resistor has the following disadvantages when mounted: are always mounted separately from the switching device and require separate connecting wires and separate heat sinks, are costly, take up space, are complex to manufacture, and require special attention to the insulation near the wires.
Disclosure of Invention
The utility model aims to overcome the defects in the background art, provides a mounting structure of a high-power switch device absorption resistor, and overcomes the defects of high mounting cost, large occupied space and complex process.
The technical scheme adopted by the utility model is as follows:
a mounting structure of a high-power switch device absorption resistor comprises a cooling body, a high-power switch device and an absorption resistor, wherein a bolt hole electrically connected with an external copper bar is formed in the rear end of the cooling body, and one surface of the high-power switch device is tightly pressed with one surface of the cooling body; the absorption resistor is arranged on the cooling body; the absorption resistor is fixed on the cooling body, and one of the electric connecting ends of the absorption resistor is directly electrically connected with the cooling body on site.
Preferably, the cooling body is a water-cooled radiator with a flow channel designed therein.
Preferably, a screw hole is tapped at the front end of the cooling body to fix the absorption resistor to the cooling body.
The utility model has the beneficial effects that: the absorption resistor is directly fixed on the cooling body and is electrically connected with the cooling body, an additional independent radiator is not needed, the number of wires is reduced, the occupied space is small, the installation cost is low, and the labor is simple.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic diagram of an applied circuit of the rc absorption network.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples, so that the objects, solutions and advantages of the present invention can be more clearly understood by those skilled in the art.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and limited, specific meanings of the general terms in the present invention may be specifically understood by those skilled in the art.
As shown in fig. 1 and fig. 2, the mounting structure of the absorption resistor of the high-power switching device provided by the utility model comprises a cooling body 1, a high-power switching device 2 and an absorption resistor 3.
The cooling body 1 is a water-cooling radiator with a flow channel designed inside, and a bolt hole 4 electrically connected with an external copper bar is formed in the rear end of the cooling body 1. The high-power switch device 2 is a thyristor in a high-power double-sided cooling mode, one surface of the thyristor is tightly pressed with one surface of the cooling body 1, and the thyristor is quickly cooled through the cooling body 1. The absorption resistor 3 is fixed on the cooling body 1, and in fig. 1 and fig. 2, a threaded hole is tapped at the front end of the cooling body 1 to fix the absorption resistor 3 on the cooling body 1 so as not to affect the installation of the high-power switching device 2. The absorption resistor 3 is rapidly cooled through the cooling body 1, a radiator does not need to be separately arranged for the absorption resistor, one of the electric connecting ends of the absorption resistor 3 is directly electrically connected with the cooling body 1 on the spot, and connecting wires are reduced.
The above description is only a preferred embodiment of the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A mounting structure of a high-power switch device absorption resistor comprises a cooling body (1), a high-power switch device (2) and an absorption resistor (3), wherein a bolt hole (4) electrically connected with an external copper bar is formed in the rear end of the cooling body (1), and one surface of the high-power switch device (2) is tightly pressed with one surface of the cooling body (1); the absorption resistor (3) is arranged on the cooling body (1); the method is characterized in that: the absorption resistor (3) is fixed on the cooling body (1), and one of the electrical connection ends of the absorption resistor (3) is directly electrically connected with the cooling body (1) on site.
2. The mounting structure of absorption resistor of high power switching device as claimed in claim 1, wherein: the cooling body (1) is a water-cooling radiator with a flow passage designed inside.
3. A mounting structure of absorption resistor of high power switching device according to claim 1 or 2, wherein: the front end of the cooling body (1) is tapped with a threaded hole for fixing the absorption resistor (3) on the cooling body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364292.1U CN217010681U (en) | 2021-12-30 | 2021-12-30 | Mounting structure of high-power switch device absorption resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364292.1U CN217010681U (en) | 2021-12-30 | 2021-12-30 | Mounting structure of high-power switch device absorption resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217010681U true CN217010681U (en) | 2022-07-19 |
Family
ID=82386991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123364292.1U Active CN217010681U (en) | 2021-12-30 | 2021-12-30 | Mounting structure of high-power switch device absorption resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217010681U (en) |
-
2021
- 2021-12-30 CN CN202123364292.1U patent/CN217010681U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP4106175A1 (en) | Motor controller and vehicle | |
| CN101290931B (en) | Self-cooled thyristor valve of high power and mounting vehicle | |
| CN103795035A (en) | Power module and apparatus for preventing malfunction, and method of controlling thereof | |
| CN217010681U (en) | Mounting structure of high-power switch device absorption resistor | |
| CN203826375U (en) | Metal-Oxide-Semiconductor (MOS) tubes connected in parallel to realize a structure for controlling the opening and the closing of large current | |
| CN211530732U (en) | Power supply positive and negative polarity reverse connection preventing circuit adopting PMOS (P-channel metal oxide semiconductor) tube | |
| CN211089493U (en) | Silicon carbide MOSFET half-bridge circuit, and parallel circuit module and power board | |
| CN210183302U (en) | Hundred kilovolt grade all-solid-state fast protection high-voltage switch | |
| CN209217706U (en) | Surge current suppression circuit | |
| CN202034892U (en) | Large power discharge switch device based on electronic triggered thyristor | |
| CN202997408U (en) | Radiator for air chamber inner pole | |
| CN112152599A (en) | All-solid-state direct current circuit breaker | |
| CN112670065A (en) | Anti-peak circuit and compensation transformer | |
| CN217740376U (en) | Connecting bar for heat dissipation of molded case circuit breaker and heat dissipation structure of molded case circuit breaker | |
| CN202696162U (en) | Capacitance compensation regulating switch | |
| CN220753184U (en) | Ultra-low inductance and high current integrated inductor | |
| CN112186775B (en) | Low-voltage powerless compensation device | |
| KR102660025B1 (en) | Solid State Circuit Breaker | |
| CN116316457B (en) | Composite energy-consumption type DC circuit breaker | |
| CN214013684U (en) | High-efficient heat radiation structure of cabinet is aerifyd in high tension current environmental protection | |
| CN202840932U (en) | Inverter welding machine insulated gate bipolar translator (IGBT) peak voltage protector | |
| CN216818194U (en) | Circuit breaker structure | |
| CN204230887U (en) | A kind of nonlinear resistance type resonance eliminator | |
| CN213846567U (en) | Soft start control installation device for mining motor | |
| CN213661482U (en) | High-voltage solid soft starting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |