Capacitor busbar insulation sealing assembly

Abstract

The utility model discloses a capacitor busbar insulation sealing assembly, which comprises a packaging shell for packaging a capacitor body, a sealing block and an insulation sleeve, the side surface of the packaging shell is provided with a lead-out hole for a busbar terminal of the capacitor body to penetrate out, the sealing block is embedded into the inner side of the packaging shell corresponding to the lead-out hole, and the insulation sleeve is arranged in the packaging shell. The sealing block is provided with a sealing opening for a busbar terminal of the capacitor body to pass through. And the insulating sleeve is of a U-shaped structure and is sleeved at one end, penetrating out of the packaging shell, of the busbar terminal of the capacitor body. When the capacitor is used, the capacitor body can be installed in the packaging shell in a sealed mode, and the sealing block is sleeved at the leading-out position of the busbar terminal and embedded into the inner side of the leading-out hole so that the leading-out position can keep good sealing performance. Meanwhile, the insulating sleeve is sleeved at one end, penetrating out of the packaging shell, of the busbar terminal of the capacitor body, so that the insulating effect of the adjacent busbar terminals can be ensured; and the use is safer and more stable.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, specifically to a capacitor busbar insulation and sealing assembly. Background Technology

[0002] In the early stages of electric vehicle development, general-purpose industrial-grade capacitors were often used to meet electrical performance requirements. Besides electrical performance, electric vehicles also have high requirements for the sealing performance of capacitors. Currently, the output busbars of the bus capacitors in electric vehicle drives typically adopt a straight-in, straight-out structure, which allows for good flexible sealing or a split-shell structure. These structures, with sealing rings or other sealing measures at the exit points, generally maintain a good sealing effect. However, for some output busbars that have been bent (or irregularly shaped) and exited the shell, it is difficult to maintain a high level of sealing and insulation. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a capacitor busbar insulation and sealing assembly, which can improve the sealing and insulation of the capacitor busbar terminals after encapsulation.

[0004] The technical solution adopted by this utility model is: a capacitor busbar insulation and sealing assembly, including an encapsulation shell for encapsulating the capacitor body, the side of the encapsulation shell is provided with lead-out holes for the busbar terminals of the capacitor body to pass through, and also includes a sealing block and an insulating sleeve. The sealing block is embedded inside the encapsulation shell corresponding to the lead-out holes, and the sealing block is provided with a sealing opening for the busbar terminals of the capacitor body to pass through; the insulating sleeve has a U-shaped structure and is sleeved on the end of the busbar terminals of the capacitor body that passes through the encapsulation shell.

[0005] In this technical solution, the capacitor body is sealed and installed inside the encapsulation shell. The reference hole on the encapsulation shell is used to lead out the busbar terminals. The sealing block is sleeved on the lead-out position of the busbar terminals and embedded inside the lead-out hole to maintain good sealing at the lead-out position. At the same time, the insulating sleeve is sleeved on the end of the busbar terminals of the capacitor body that protrudes from the encapsulation shell to ensure the insulation effect of adjacent busbar terminals. It is safer and more stable in use.

[0006] Preferably, the sealing block has a frustum-shaped structure.

[0007] Preferably, the sealing block and the insulating sleeve are elastic.

[0008] Preferably, the outer side of the encapsulation shell is provided with a fixing platform below the lead-out hole, and the upper end of the fixing platform is provided with an assembly groove for embedding the end of the busbar terminal.

[0009] Preferably, the bottom wall of the assembly groove is provided with a press-fit nut.

[0010] The beneficial effects of this utility model are: when in use, the capacitor body can be sealed and installed inside the encapsulation shell, the sealing block is sleeved on the lead-out position of the busbar terminal and embedded inside the lead-out hole to maintain good sealing at the lead-out position, and at the same time, the insulating sleeve is sleeved on the end of the busbar terminal of the capacitor body that protrudes from the encapsulation shell to ensure the insulation effect of adjacent busbar terminals; it is safer and more stable in use; and has high practical value. Attached Figure Description

[0011] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0012] Figure 1 This is a perspective view of the capacitor busbar insulation and sealing assembly provided in the embodiments of this utility model.

[0013] Figure 2 This is a schematic diagram of the installation of the insulating sleeve of the capacitor busbar insulation sealing assembly provided in this embodiment of the utility model.

[0014] Reference numerals in the attached drawings: 100 for the encapsulation housing, 110 for the lead-out hole, 120 for the fixing platform, 200 for the busbar terminal, 300 for the sealing block, 400 for the insulating sleeve, and 500 for the press-fit nut. Detailed Implementation

[0015] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0016] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0017] like Figure 1 and Figure 2As shown in the figure, a specific embodiment of this utility model provides a capacitor busbar insulation and sealing assembly, which has the advantages of good sealing effect, high structural strength, and no glue leakage during encapsulation. Specifically, it includes an encapsulation shell 100 for encapsulating the capacitor body. The side of the encapsulation shell 100 is provided with lead-out holes 110 for the busbar terminals 200 of the capacitor body to pass through. It also includes a sealing block 300 and an insulating sleeve 400. The sealing block 300 is embedded inside the encapsulation shell 100 corresponding to the lead-out holes 110, and the sealing block 300 is provided with a sealing opening for the busbar terminals 200 of the capacitor body to pass through. The insulating sleeve 400 has a U-shaped structure and is sleeved on the end of the busbar terminals 200 of the capacitor body that protrudes from the encapsulation shell 100.

[0018] like Figure 1 and Figure 2 As shown, through the above configuration, the capacitor body is sealed and installed inside the encapsulation housing 100 in this embodiment. The reference hole provided on the encapsulation housing 100 is used to lead out the busbar terminal 200. The sealing block 300 is sleeved on the lead-out position of the busbar terminal 200 and embedded inside the lead-out hole 110 to maintain good sealing at the lead-out position. At the same time, the insulating sleeve 400 is sleeved on the end of the busbar terminal 200 of the capacitor body that protrudes from the encapsulation housing 100 to ensure the insulation effect of adjacent busbar terminals 200. This makes it safer and more stable in use. In order to ensure the sealing performance when the sealing block 300 is embedded in the lead-out hole 110, the sealing block 300 in this embodiment has a frustum-shaped structure, usually a frustum-cone or frustum-pyramidal structure, which is selected according to the cross-sectional shape of the lead-out hole 110. At the same time, the sealing block 300 and the insulating sleeve 400 are elastic. Due to the elasticity of the sealing block 300, its sealing performance is higher when embedded in the lead-out hole 110.

[0019] like Figure 1 and Figure 2 As shown, the capacitor needs to be electrically connected to the busbar terminal 200 during use. In this embodiment, a fixing platform 120 is provided on the outer side of the package housing 100 below the lead-out hole 110. The upper end of the fixing platform 120 is provided with an assembly groove for embedding the end of the busbar terminal 200, and the bottom wall of the assembly groove is provided with a rivet nut 500. In this way, the assembly groove can ensure that the end of the busbar terminal 200 is stably installed in the position of the fixing platform 120, and the rivet nut 500 ensures the firmness of the connection.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A capacitor busbar insulation and sealing assembly, comprising an encapsulation shell (100) for encapsulating a capacitor body, wherein the encapsulation shell (100) has lead-out holes (110) on its side for the busbar terminals (200) of the capacitor body to pass through, characterized in that... ； It also includes a sealing block (300) and an insulating sleeve (400). The sealing block (300) is embedded inside the encapsulation shell (100) corresponding to the lead-out hole (110). The sealing block (300) is provided with a sealing port for the busbar terminal (200) of the capacitor body to pass through. The insulating sleeve (400) has a U-shaped structure and is sleeved on one end of the busbar terminal (200) of the capacitor body that protrudes from the encapsulation shell (100).

2. The capacitor busbar insulation and sealing assembly according to claim 1, characterized in that; The sealing block (300) has a frustum structure.

3. The capacitor busbar insulation and sealing assembly according to claim 1, characterized in that; The sealing block (300) and the insulating sleeve (400) are elastic.

4. The capacitor busbar insulation and sealing assembly according to claim 1, characterized in that; The outer side of the encapsulation shell (100) is provided with a fixing platform (120) below the lead-out hole (110), and the upper end of the fixing platform (120) is provided with an assembly groove for embedding the end of the busbar terminal (200).

5. The capacitor busbar insulation and sealing assembly according to claim 4, characterized in that; The bottom wall of the assembly slot is provided with a press-fit nut (500).

Images