Rotary resistance-capacitance protection module

Abstract

The rotary resistance-capacitance protection module comprises a shell which is composed of a shell body and a base for fixing the shell body. A capacitor and a non-inductive resistor are sequentially connected in the shell through a wire, and the two free ends of the wire extend out of the shell to serve as wiring ends. The housing is filled with insulating silicone rubber, and the capacitor and the non-inductive resistor are packaged in the housing. The insulation silicon rubber realizes insulation and isolation for the non-inductive resistor and the capacitor, so that the size of the rectification assembly is greatly reduced while the electrical standard is met, and the rectification assembly is suitable for smaller installation space; and meanwhile, the insulating silicon rubber is filled into the shell and is used for fastening and packaging the non-inductive resistor and the capacitor, so that relatively high gravitational acceleration can be borne, the high-voltage resistance is enhanced, and the electrical stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed brushless synchronous generator rotary rectification, in particular to a rotary resistor-capacitor protection module in a rotary rectifier, which plays a role in protecting key components from overcurrent and overvoltage. Background Art

[0002] The rectifier of the high-speed brushless synchronous generator contains a rotating RC protection module, which is mainly composed of components such as RC and plays a role in overcurrent and overvoltage protection for key components. Conventional RC protection modules are a combination of various components that are pressed into a PVC shell and are mostly used in static installations. Therefore, mechanical damage will occur when the motor rotates at high speed, and there is a risk of explosion. Therefore, there are still certain defects in mechanical properties, electrical stability, heat dissipation, etc., and it only plays a certain protective role in theory. At the same time, in order to meet the standards of creepage distance and discharge distance, the existing rotating RC protection modules usually increase the distance between the various components in the PVC shell, which invisibly increases the volume of the protection module, and thus puts higher requirements on the installation space. Utility Model Content

[0003] In order to solve the above-mentioned problems in the prior art, the utility model provides a rotating RC protection module with small volume and high electrical stability.

[0004] The technical solution adopted by the utility model to solve the technical problem is:

[0005] The rotating RC protection module includes a housing, which is composed of a shell and a base for fixing the shell. A capacitor and a non-inductive resistor are sequentially connected in the shell through a wire, and both free ends of the wire extend outside the shell to form wiring terminals; the shell is filled with insulating silicone rubber, and the capacitor and the non-inductive resistor are encapsulated in the shell.

[0006] By implementing the above technical scheme, the insulating silicone rubber achieves insulation barrier for the non-inductive resistors and capacitors, greatly reducing the volume of the rectifier assembly while meeting the electrical standards, and is suitable for a smaller installation space; at the same time, the insulating silicone rubber is filled into the shell and tightly encapsulates the non-inductive resistors and capacitors, which can withstand greater gravitational acceleration, have enhanced high-voltage resistance, and improved electrical stability.

[0007] In order to improve the insulation strength and facilitate installation and disassembly, the housing and the base are designed and formed in an integrated manner. In order to further improve the installation adaptability, the bottom surface of the base is provided with an arc surface adapted to the installation structure.

[0008] To further improve electrical stability, the capacitor is a C2 class capacitor.

[0009] In order to further improve the heat dissipation efficiency and extend the service life, the shell is made of aluminum alloy. Secondly, the non-inductive resistor is fixed on the inner wall of the shell.

[0010] In order to improve the tolerance and high voltage resistance, the insulating silicone rubber is thermally conductive insulating silicone rubber.

[0011] In order to further improve the electrical stability, the parameters of the wire are tensile strength ≥160 MPa, conductivity ≥61% IACS, and strength residual rate ≥90%. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 It is a side view of the utility model.

[0015] In the figure: 1. Shell; 2. Non-inductive resistor; 3. Capacitor; 4. Wire; 5. Base; 6. Insulating silicone rubber; 7. Arc surface. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1 to 3 The rotating RC protection module shown has a shell consisting of a shell 1 and a base 5. A capacitor 3 and a non-inductive resistor 2 are sequentially connected in the shell 1 through a wire 4, and both free ends of the wire 4 extend to the outside of the shell 1 as wiring terminals; then the shell 1 is filled with insulating silicone rubber 6, and the capacitor 3 and the non-inductive resistor 2 are fixedly packaged in the shell 1. This implementation method breaks through the original combined press-fitting process and adopts a casting and bonding process. The insulating silicone rubber 6 achieves insulation barrier for the non-inductive resistor 2 and the capacitor 3, greatly reducing the volume of the rectifier component while meeting the electrical standards, and is suitable for a smaller installation space. At the same time, the insulating silicone rubber 6 is filled into the shell 1 and the non-inductive resistor 2 and the capacitor 3 are tightly packaged. When used in a rotating working condition, it can withstand higher gravity acceleration. Generally, the rotating disk speed test exceeds 3800 rpm. The product has a wider range of use. Due to the improvement of production technology and structure, the product has a simple and compact appearance, enhanced high-voltage resistance, and improved electrical stability.

[0018] In order to improve the insulation strength and facilitate installation and disassembly, the housing 1 and the base 5 can also be designed as an integral molding. The bottom surface of the base 5 is provided with an arc surface 7 adapted to the mounting structure, which can better fit the arc of the rotating disk side wall for installation.

[0019] As a preferred embodiment of the above embodiment, in order to further improve the heat dissipation efficiency, extend the service life, and improve the electrical stability, the above shell can be made of aluminum alloy, and the non-inductive resistor 2 can be fixed on the inner wall of the shell 1. The above capacitor 3 can be upgraded to a C2-class capacitor to enhance the electrical stability and provide a wider protection range. The optional parameters of the wire 4 are tensile strength ≥160 MPa, conductivity ≥61% IACS, and strength residual rate ≥90%.

[0020] In order to improve the tolerance and high voltage resistance, the insulating silicone rubber 6 is a thermally conductive insulating silicone rubber.

[0021] In order to illustrate the structure of the present invention in detail, the above-mentioned implementation modes are all preferred parameter settings, which are not intended to be exhaustive of the protection scope of the present invention. All implementation modes within the scope of the present invention should be protected accordingly.

Claims

1. A rotating RC protection module, comprising a housing, the housing being composed of a shell and a base for fixing the shell, characterized in that: The shell is connected with a capacitor and a non-inductive resistor in sequence through a wire, and both free ends of the wire extend outside the shell to form wiring terminals; the shell is filled with insulating silicone rubber, and the capacitor and the non-inductive resistor are encapsulated in the shell.

2. The rotating RC protection module according to claim 1, characterized in that: The shell and the base are designed and formed in an integrated manner.

3. The rotating RC protection module according to claim 2, characterized in that: The bottom surface of the base is provided with a curved surface adapted to the mounting structure.

4. The rotating RC protection module according to any one of claims 1 to 3, characterized in that: The capacitor is a C2 class capacitor.

5. The rotating RC protection module according to any one of claims 1 to 3, characterized in that: The shell is made of aluminum alloy.

6. The rotating RC protection module according to claim 5, characterized in that: The non-inductive resistor is fixed on the inner wall of the shell.

7. The rotating RC protection module according to any one of claims 1 to 3, characterized in that: The insulating silicone rubber is heat-conductive insulating silicone rubber.

8. The rotating RC protection module according to any one of claims 1 to 3, characterized in that: The parameters of the conductor are tensile strength ≥ 160 MPa, conductivity ≥ 61% IACS, and strength residual rate ≥ 90%.

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