Noise reduction shell and capacitor thereof

Abstract

The utility model discloses a noise reduction housing and a capacitor thereof. The noise reduction housing comprises a main body, a noise reduction part and a positioning part. A cavity is formed in the main body, and the noise reduction part is distributed on the outer side of the cavity; the noise reduction part comprises noise reduction cavities and connecting blocks, the noise reduction cavities are located between the main body and the cavity, and the connecting blocks are located between the adjacent noise reduction cavities; the positioning part comprises a supporting column and a wire leading groove used for wiring, and the supporting column is located at the bottom of the cavity. By arranging the noise reduction part and the positioning part, the capacitor element can be accurately installed in the cavity through the positioning part, the noise reduction part can effectively absorb noise generated by the capacitor element in the cavity, and the operation stability of the capacitor is ensured; through the arrangement of the noise reduction cavity and the connecting block, the noise reduction cavity can uniformly absorb noise generated in the operation process of the capacitor element, the connecting block can stably support the noise reduction cavity, and the structural stability of the noise reduction part is improved.

Description

Technical Field

[0001] The utility model relates to the field of capacitors, in particular to a noise reduction housing and a capacitor thereof. Background Art

[0002] A capacitor is made up of two conductors placed close to each other with a non-conductive insulating medium in between. When voltage is applied between the two plates of a capacitor, the capacitor will store charge. The capacitance of a capacitor is numerically equal to the ratio of the charge on one conductive plate to the voltage between the two plates. Existing capacitors require the capacitor core to be installed inside the shell during installation. The connection of the shell makes contact with the capacitor core during use, and the vibration of the capacitor core causes noise to be generated by the shell. The capacitor is also prone to overheating during long-term use. Currently, the resin shell of capacitors is mostly a single-layer structure. When the capacitor is operating, it generates a certain amount of noise due to the lack of effective blocking, which affects the operational stability of the capacitor. Summary of the invention

[0003] In order to solve the above problems, the purpose of the utility model is to provide a noise reduction housing and a capacitor thereof, so as to reduce the operating noise of the capacitor and improve the operating stability of the capacitor.

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

[0005] According to a first aspect of the utility model, a noise reduction shell comprises a main body, a noise reduction part and a positioning part; a cavity is provided in the main body, and the noise reduction part is distributed on the outside of the cavity; the noise reduction part comprises a noise reduction cavity and a connecting block, the noise reduction cavity is located between the main body and the cavity, and the connecting block is located between adjacent noise reduction cavities; the positioning part comprises a supporting column and a wire groove for wiring, and the supporting column is located at the bottom of the cavity.

[0006] The above-mentioned noise reduction shell has at least the following beneficial effects: by providing the noise reduction part and the positioning part, the capacitor element can be accurately installed in the cavity through the positioning part, and the noise reduction part can effectively absorb the noise emitted by the capacitor element inside the cavity, thereby ensuring the operating stability of the capacitor; by providing the noise reduction cavity and the connecting block, the noise reduction cavity can uniformly absorb the noise emitted during the operation of the capacitor element, and the connecting block can stably support the noise reduction cavity, thereby improving the structural stability of the noise reduction part.

[0007] Furthermore, the width of the noise reduction cavity gradually increases in the direction away from the cavity. This structure ensures that the noise generated during the operation of the capacitor element can be reflected multiple times in the noise reduction cavity, thereby improving the noise absorption effect of the noise reduction cavity.

[0008] Furthermore, the cross section of the noise reduction cavity is trapezoidal. This structure not only ensures the noise absorption effect of the noise reduction cavity, but also improves the structural stability of the noise reduction cavity, and avoids the noise reduction cavity from deforming during use, which affects the noise reduction effect of the noise reduction part.

[0009] Furthermore, the inner wall of the noise reduction cavity is a rough surface, and the cross section of the rough surface is a tooth-shaped corrugated structure. By providing the rough surface, the rough surface reduces the efficiency of noise sound wave transmission, ensures that the noise can be better absorbed by the inner wall of the noise reduction cavity, and further improves the sound insulation effect of the noise reduction part.

[0010] Furthermore, a support block extending upward is provided between the connection block and the cavity. By providing the support block, the connection stability between the main body and the capacitor electrode is improved, deformation of the noise reduction cavity is avoided, and the structural stability of the noise reduction housing is improved.

[0011] Furthermore, the lead groove extends along the length direction of the main body to the bottom of the cavity. By providing the lead groove, it is ensured that the bottom of the capacitor element can be led to the upper end of the main body, avoiding the situation of wire breakage, which affects the stability of the noise reduction housing.

[0012] Furthermore, the width of the lead groove gradually decreases in the direction away from the cavity. This structure ensures that the lead can be stably fixed in the lead groove, thereby improving the stability of the noise reduction housing.

[0013] Furthermore, the cross section of the wire guide groove is trapezoidal. This structure improves the structural stability of the wire guide groove and prevents the wire guide groove from deforming during use, thereby affecting the stability of the noise reduction housing.

[0014] Furthermore, the main body and the noise reduction part are integrally formed of polyphenylene sulfide. Polyphenylene sulfide is a new type of high-performance thermoplastic resin with the advantages of high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, good thermal stability, and excellent electrical properties. The main body and the noise reduction part are integrally formed of polyphenylene sulfide, which improves the insulation performance and structural stability of the noise reduction shell.

[0015] A second aspect of the utility model is a capacitor, comprising a capacitor element and the noise reduction housing as described above; the capacitor element is fixed in the cavity through the support column.

[0016] The beneficial effects of the above-mentioned capacitor are: by providing a noise reduction part and a positioning part, the capacitor element can be accurately installed in the cavity through the positioning part, and the noise reduction part can effectively absorb the noise emitted by the capacitor element inside the cavity, thereby ensuring the operating stability of the capacitor; by providing a noise reduction cavity and a connecting block, the noise reduction cavity can uniformly absorb the noise emitted during the operation of the capacitor element, and the connecting block can stably support the noise reduction cavity, thereby improving the structural stability of the noise reduction part; by providing support columns and lead grooves, the positioning accuracy of the capacitor element and the cavity is improved, thereby improving the stability of the capacitor.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of a noise reduction housing according to an embodiment of the utility model;

[0020] Figure 2 This is a cross-sectional view of a noise reduction housing according to an embodiment of the utility model;

[0021] Figure 3 This is a top view of a noise reduction housing according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] Reference Figures 1 to 3 The embodiment of the utility model provides a noise reduction shell, a noise reduction shell, including a main body 100, a noise reduction part 200 and a positioning part 300; a cavity 110 is provided in the main body 100, and the noise reduction part 200 is distributed on the outside of the cavity 110; the noise reduction part 200 includes a noise reduction cavity 210 and a connecting block 220, the noise reduction cavity 210 is located between the main body 100 and the cavity 110, and the connecting block 220 is located between adjacent noise reduction cavities 210; the positioning part 300 includes a support column 310 and a lead groove 320 for wiring, and the support column 310 is located at the bottom of the cavity 110.

[0024] By providing the noise reduction portion 200 and the positioning portion 300, the capacitor element can be accurately installed in the cavity 110 through the positioning portion 300, and the noise reduction portion 200 can effectively absorb the noise emitted by the capacitor element inside the cavity 110, thereby ensuring the operational stability of the capacitor; by providing the noise reduction cavity 210 and the connecting block 220, the noise reduction cavity 210 can uniformly absorb the noise emitted during the operation of the capacitor element, and the connecting block 220 can stably support the noise reduction cavity 210, thereby improving the structural stability of the noise reduction portion 200.

[0025] In another embodiment, the width of the noise reduction cavity 210 gradually increases in a direction away from the cavity 110. This structure ensures that the noise generated during the operation of the capacitor element can be reflected multiple times in the noise reduction cavity 210, thereby improving the noise absorption effect of the noise reduction cavity 210.

[0026] In another embodiment, the cross section of the noise reduction cavity 210 is trapezoidal. This structure not only ensures the noise absorption effect of the noise reduction cavity 210, but also improves the structural stability of the noise reduction cavity 210, and prevents the noise reduction cavity 210 from deforming during use, which affects the noise reduction effect of the noise reduction part 200.

[0027] In another embodiment, the inner wall of the noise reduction cavity 210 is a rough surface, and the cross section of the rough surface is a tooth-shaped corrugated structure. By providing a rough surface, the rough surface reduces the efficiency of noise sound wave transmission, ensures that the noise can be better absorbed by the inner wall of the noise reduction cavity 210, and further improves the sound insulation effect of the noise reduction part 200.

[0028] In another embodiment, a support block 120 extending upward is provided between the connection block 220 and the cavity 110. By providing the support block 120, the connection stability between the main body 100 and the capacitor electrode is improved, deformation of the noise reduction cavity 210 is avoided, and the structural stability of the noise reduction housing is improved.

[0029] In another embodiment, the lead groove 320 extends along the length direction of the main body 100 to the bottom of the cavity 110. By providing the lead groove 320, it is ensured that the bottom of the capacitor element can be led to the upper end of the main body 100, avoiding the situation of wire breakage, which affects the stability of the noise reduction housing.

[0030] In another embodiment, the width of the lead groove 320 gradually decreases in a direction away from the cavity 110. This structure ensures that the lead wire can be stably fixed in the lead groove 320, thereby improving the stability of the noise reduction housing.

[0031] In another embodiment, the cross section of the lead groove 320 is trapezoidal. This structure improves the structural stability of the lead groove 320 and prevents the lead groove 320 from deforming during use, thereby affecting the stability of the noise reduction housing.

[0032] In another embodiment, the main body 100 and the noise reduction part 200 are made of polyphenylene sulfide in one piece. Polyphenylene sulfide (PPS) is a new high-performance thermoplastic resin with the advantages of high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, good thermal stability, and excellent electrical properties. The main body 100 and the noise reduction part 200 are made of PPS material in one piece, which improves the insulation performance and structural stability of the noise reduction shell. Of course, in other embodiments, the main body 100 and the noise reduction part 200 are made of other insulating materials, such as BMC and other materials, which are not limited here.

[0033] The embodiment of the utility model provides a capacitor, including a capacitor element and the above noise reduction housing; the capacitor element is fixed in the cavity 110 through a support column 310 .

[0034] By providing the noise reduction portion 200 and the positioning portion 300, the capacitor element can be accurately installed in the cavity 110 through the positioning portion 300, and the noise reduction portion 200 can effectively absorb the noise emitted by the capacitor element inside the cavity 110, thereby ensuring the operational stability of the capacitor; by providing the noise reduction cavity 210 and the connecting block 220, the noise reduction cavity 210 can uniformly absorb the noise emitted during the operation of the capacitor element, and the connecting block 220 can stably support the noise reduction cavity 210, thereby improving the structural stability of the noise reduction portion 200; by providing the support column 310 and the lead groove 320, the positioning accuracy of the capacitor element and the cavity 110 is improved, thereby improving the stability of the capacitor.

[0035] The working principle of the utility model is further explained below.

[0036] During the assembly process, first, according to the size of the capacitor, different specifications of the main body 100 are selected so that the cavity 110 can stably accommodate the capacitor element, the support column 310 can stably support the capacitor element, and the noise reduction part 200 is wrapped around the outside of the cavity 110. The two end faces of the capacitor element are connected to the leads respectively, and the leads connected to the lower end of the capacitor element are extended to the upper end of the capacitor element through the lead groove 320, so as to connect the two end faces of the capacitor element to the external leads. Then, the gap between the capacitor element and the cavity 110 is filled with epoxy resin to cover the core capacitor element, and the leads in the lead groove 320 are fixed at the same time. Next, the upper end cover of the capacitor is fixed to the upper end of the main body 100 through the support block 120 to complete the capacitor assembly.

[0037] During use, the noise emitted by the capacitor element will first pass through the cavity 110 and the noise reduction cavity 210 to encounter the main body 100, and then reflect back, after multiple reflections in the noise reduction cavity 210 and being absorbed by the inner wall of the noise reduction cavity 210, it will eventually achieve an effect of reducing noise. The rough surface of the inner wall of the noise reduction cavity 210 reduces the efficiency of noise sound wave transmission, ensuring that the noise can be better absorbed by the inner wall of the noise reduction cavity 210, further improving the sound insulation effect of the noise reduction part 200. In actual applications, the noise reduction shell effectively solves the problem of excessive noise during the operation of the capacitor, reducing the operating noise of the capacitor by 10%, and improving the operating quality of the capacitor.

[0038] From the above description, it can be seen that the noise reduction housing and its capacitor of the utility model are provided with a noise reduction part 200 and a positioning part 300, so that the capacitor element can be accurately installed in the cavity 110 through the positioning part 300, and the noise reduction part 200 can effectively absorb the noise emitted by the capacitor element inside the cavity 110, thereby ensuring the operating stability of the capacitor; by providing a noise reduction cavity 210 and a connecting block 220, the noise reduction cavity 210 can uniformly absorb the noise emitted during the operation of the capacitor element, and the connecting block 220 can stably support the noise reduction cavity 210, thereby improving the structural stability of the noise reduction part 200; by providing a support column 310 and a lead groove 320, the positioning accuracy of the capacitor element and the cavity 110 is improved, thereby improving the stability of the capacitor.

[0039] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A noise reduction housing, characterized in that: It includes a main body, a noise reduction part and a positioning part; a cavity is provided in the main body, and the noise reduction part is distributed on the outside of the cavity; the noise reduction part includes a noise reduction cavity and a connecting block, the noise reduction cavity is located between the main body and the cavity, and the connecting block is located between adjacent noise reduction cavities; the positioning part includes a supporting column and a lead groove for wiring, and the supporting column is located at the bottom of the cavity.

2. A noise reduction housing according to claim 1, characterized in that: The width of the noise reduction cavity gradually increases in a direction away from the cavity.

3. A noise reduction housing according to claim 2, characterized in that: The cross section of the noise reduction cavity is trapezoidal.

4. The noise reduction housing according to claim 2, characterized in that: The inner walls of the noise reduction chamber are all rough surfaces, and the cross-section of the rough surface is a tooth-shaped corrugated structure.

5. The noise reduction housing according to claim 1, characterized in that: A supporting block extending upward is provided between the connecting block and the cavity.

6. The noise reduction housing according to claim 1, characterized in that: The wire guide groove extends along the length direction of the main body to the bottom of the cavity.

7. The noise reduction housing according to claim 6, characterized in that: The width of the lead groove gradually decreases in a direction away from the cavity.

8. The noise reduction housing according to claim 7, characterized in that: The cross section of the lead groove is trapezoidal.

9. The noise reduction housing according to claim 1, characterized in that: The main body and the noise reduction part are made of polyphenylene sulfide in one piece.

10. A capacitor, characterized in that: It comprises a capacitor element and the noise reduction housing according to any one of claims 1 to 9; the capacitor element is fixed in the cavity through the supporting column.

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