CN209843511U - Cylindrical capacitor with high concentricity - Google Patents
Cylindrical capacitor with high concentricity Download PDFInfo
- Publication number
- CN209843511U CN209843511U CN201920886522.4U CN201920886522U CN209843511U CN 209843511 U CN209843511 U CN 209843511U CN 201920886522 U CN201920886522 U CN 201920886522U CN 209843511 U CN209843511 U CN 209843511U
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Abstract
The utility model discloses a cylindrical capacitor that concentricity is high, it includes capacitor core group (1), packing medium (3) and shell (2), the shell includes upper cover plate (5), apron (4) and capacitor case down, the center department of apron has location boss (7) down, capacitor core group includes two at least perpendicular distribution's capacitor core, be equipped with between two adjacent capacitor core with location boss endocentric location end cap (6), the location end cap includes round platform portion and the cavity post portion that is located the round platform center, the outer peripheral face evenly distributed of round platform portion has a plurality of through-holes that communicate with cavity post portion, the core downthehole of capacitor core is inserted to the cavity post portion, annotate the fat hole has been seted up on the upper cover plate. The beneficial effects of the utility model are that through the straightness and the concentricity of hanging down when location boss and location end cap ensure that every core is placed, make the even packing of packing medium between core group and shell, improve the utmost point shell insulation resistance and the partial discharge voltage of condenser to promote the uniformity of product.
Description
Technical Field
The utility model relates to an assembly field of condenser especially relates to cylindrical condenser.
Background
With the rapid development of the national wind power and photovoltaic industries, the cylindrical capacitor is increasingly required. At present, as the production batch size increases, the consistency of the production batch size of cylindrical capacitors becomes a key for controlling the product quality, and the cylindrical capacitors are generally formed by vertically placing one or more cylindrical cores in a housing in a series-parallel manner and filling the space between the housing and the capacitor core with resin. The capacitor core is placed in a shell, the verticality and the concentricity between the core and the shell directly influence the thickness of resin filler between the core and the shell, and also directly influence the electrode-shell local discharge and insulation resistance of a capacitor product, so that the leakage current of a system is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that current cylindrical capacitor can't guarantee the concentricity between core and the shell and hang down straightness when the cylindrical core of placing perpendicularly is installed, provides a cylindrical capacitor that concentricity is high for this.
The technical scheme of the utility model is that: cylindrical condenser that concentricity is high, it includes capacitor core group, packing medium and shell, the shell includes upper cover plate, lower apron and capacitor case, the center department of apron has the location boss down, capacitor core group includes two at least vertically distributed's capacitor core, is equipped with between two adjacent capacitor core with the endocentric location end cap of location boss, the location end cap includes round platform portion and the cavity post portion that is located the round platform center, the outer peripheral face evenly distributed of round platform portion has a plurality of through-holes that communicate with cavity post portion, the cavity post portion inserts in the core hole of capacitor core, the last notes fat hole of having seted up of upper cover plate.
The improvement of the scheme is that the lower cover plate is also provided with a plurality of bulges which are uniformly distributed around the positioning lug boss.
In the scheme, the section of the outer peripheral surface of the positioning boss is a circular surface.
In the above aspect, the cross section of the outer peripheral surface of the hollow column portion is a circular surface.
In the above scheme, the cross section of the outer peripheral surface of the positioning boss is polygonal.
In the above aspect, the cross section of the outer peripheral surface of the hollow column portion is polygonal.
The beneficial effects of the utility model are that through the straightness and the concentricity of hanging down between the location boss and the location end cap when guaranteeing that every core is placed and the shell, make the even packing of packing medium between condenser core group and shell, improve the polar shell insulation resistance and the partial discharge voltage of condenser to promote the uniformity of product.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the positioning plug of FIG. 1;
FIG. 3 is a schematic view of the lower deck of FIG. 1;
in the figure, the capacitor comprises a capacitor core 1, a capacitor core 2, a shell 3, a filling medium 4, a lower cover plate 5, an upper cover plate 6, a positioning plug 7, a positioning boss 8 and a protrusion.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments of the ordinary skilled person in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the present invention includes a capacitor core assembly 1, a filling medium 3 and a housing 2, which is characterized in that: the shell includes upper cover plate 5, lower cover plate 4 and capacitor case, the center department of lower cover plate has location boss 7, the capacitor core group includes two at least perpendicular distributions's capacitor core, is equipped with between two adjacent capacitor cores with the concentric location end cap 6 of location boss, the location end cap includes round platform portion and the cavity post portion that is located the round platform center, the outer peripheral face evenly distributed of round platform portion has a plurality of through-holes that communicate with the cavity post portion, the cavity post portion inserts in the core hole of capacitor core, the last notes fat hole of having seted up of upper cover plate.
The utility model provides a capacitor core all places perpendicularly in the shell.
Example 1: a cylindrical capacitor with high concentricity comprises a capacitor core 1, a filling medium 3 and a shell 2, wherein the shell is made of tinplate, as shown in figure 1, the capacitor core comprises an upper part and a lower part, the capacitor cores are connected in series and in parallel through metal leads to form a capacitor core group, the shell comprises an upper cover plate 5, a lower cover plate 4 and a capacitor shell, the upper cover plate is provided with a leading-out terminal and a grease injection hole, the grease injection hole is used for filling the filling medium such as polyurethane, the center of the lower cover plate is provided with a positioning boss 7, the positioning boss is inserted into a core hole of the capacitor core positioned below, the cross section of the outer peripheral surface of the positioning boss is in a regular hexagon shape, a positioning plug 6 concentric with the positioning boss is arranged between the upper capacitor core and the lower capacitor core, the positioning plug is made of an insulating material, the positioning plug comprises a circular table part and a hollow column, the hollow column part is inserted into a core hole of the lower end face of the capacitor core positioned above, and a plurality of through holes communicated with the hollow column part are uniformly distributed on the outer peripheral surface of the circular table part, so that the filling medium can smoothly pass through the circular table part and uniformly flow into a space below. The thickness of the circular boss part is 3mm, so that welding points for connecting the end face of the capacitor core and the metal conducting wire are suspended, and the capacitor core is uniformly distributed by taking the positioning lug boss and the positioning plug as the circle center.
Example 2: the difference with embodiment 1 lies in that still be equipped with a plurality of archs 8 around positioning boss evenly distributed on the apron down, the bellied height is 3mm, can make the solder joint that is connected with the wire on the condenser core hang like this, and the perpendicular and the concentricity of core group are guaranteed jointly with the location end cap.
Example 3: the difference from embodiment 1 is that the material of the housing is aluminum alloy, the cross section of the outer peripheral surface of the positioning boss is circular, the cross section of the hollow column part is circular, and the filling medium is epoxy resin.
The above embodiments can be combined arbitrarily as required, and the obtained schemes do not conflict with each other and fall within the protection scope of the present invention.
The utility model discloses an installation as follows: the capacitor core group is formed by connecting four capacitor cores in parallel through metal conductors, the metal spraying surfaces on the two sides of each capacitor core are fixedly connected with the metal conductors through welding, and the capacitor cores are assembled and positioned through positioning plugs. A filling hole for filling a filling medium is formed in the cap plate containing the lead-out terminal, and an insulating resin can be injected into the capacitor case through the filling hole. The metal lead is electrically connected with the leading-out terminal, the metal lead is sleeved with the insulating sheath, and the filling medium is filled between the capacitor core group and the capacitor shell.
Claims (6)
1. Cylindrical capacitor that concentricity is high, it includes capacitor core group (1), filling medium (3) and shell (2), characterized by: the shell includes upper cover plate (5), lower cover plate (4) and capacitor case, the center department of lower cover plate has location boss (7), capacitor core group includes at least two perpendicular distribution's capacitor core, is equipped with between two adjacent capacitor cores with location boss endocentric location end cap (6), the location end cap includes round platform portion and the cavity post portion that is located the round platform center, the outer peripheral face evenly distributed of round platform portion has a plurality of through-holes that communicate with cavity post portion, the cavity post portion inserts in the core hole of capacitor core, the notes fat hole has been seted up on the upper cover plate.
2. The cylindrical capacitor with high concentricity as claimed in claim 1, wherein: the lower cover plate is also provided with a plurality of bulges (8) which are uniformly distributed around the positioning lug boss.
3. The cylindrical capacitor with high concentricity as claimed in claim 1, wherein: the section of the outer peripheral surface of the positioning boss is a circular surface.
4. The cylindrical capacitor with high concentricity as claimed in claim 1, wherein: the cross section of the outer peripheral surface of the hollow column part is a circular surface.
5. The cylindrical capacitor with high concentricity as claimed in claim 1, wherein: the cross section of the outer peripheral surface of the positioning boss is polygonal.
6. The cylindrical capacitor with high concentricity as claimed in claim 1, wherein: the cross section of the outer peripheral surface of the hollow column portion is polygonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920886522.4U CN209843511U (en) | 2019-06-13 | 2019-06-13 | Cylindrical capacitor with high concentricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920886522.4U CN209843511U (en) | 2019-06-13 | 2019-06-13 | Cylindrical capacitor with high concentricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209843511U true CN209843511U (en) | 2019-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920886522.4U Active CN209843511U (en) | 2019-06-13 | 2019-06-13 | Cylindrical capacitor with high concentricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209843511U (en) |
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2019
- 2019-06-13 CN CN201920886522.4U patent/CN209843511U/en active Active
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