CN211578581U - Capacitor and shell thereof - Google Patents
Capacitor and shell thereof Download PDFInfo
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- CN211578581U CN211578581U CN202020521411.6U CN202020521411U CN211578581U CN 211578581 U CN211578581 U CN 211578581U CN 202020521411 U CN202020521411 U CN 202020521411U CN 211578581 U CN211578581 U CN 211578581U
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Abstract
The utility model relates to a capacitor and a shell thereof, the capacitor comprises a cup-shaped aluminum shell, an insulating cover body and a capacitor core, the insulating cover body comprises an inserting sleeve and a cover plate, the cover plate is positioned at the inner side of the inserting sleeve, the inserting sleeve is inserted into the top of the cup-shaped aluminum shell, the periphery of the top of the inserting sleeve is provided with an annular convex edge, the annular convex edge is supported on the top surface of the cup-shaped aluminum shell, the width of the annular convex edge is more than or equal to the wall thickness of the top opening of the cup-shaped aluminum shell, the top surface of the cover plate is lower than the top surface of; an epoxy resin encapsulating layer is arranged in the cup-shaped aluminum shell and covers the capacitor core and the cover plate. The insulating cover body of the utility model is provided with the annular convex edge and is placed on the opening of the cup-shaped aluminum shell through the annular convex edge, thereby preventing the edge of the opening of the cup-shaped aluminum shell from scraping hands and ensuring that the external dimensions of the capacitor shell assembled at each time are uniform; the annular convex edge effectively increases the path length from the cup-shaped aluminum shell to the inside of the electrode sheath, namely, the creepage distance is increased, so that the capacitor is safer and more reliable to use.
Description
Technical Field
The utility model relates to a condenser technical field, especially a condenser and shell thereof.
Background
Chinese patent document No. CN1090348A discloses a microwave oven capacitor in 2018, 12 and 18 months, which includes a housing, more than two capacitor cores, an upper cover and a resistor, wherein the resistor is disposed on a circuit board, two groups of electrode inserts are disposed on the circuit board, and the resistor is disposed between the two groups of electrode inserts; the more than two capacitor cores are connected in series between the two groups of electrode insertion sheets; two ends of the upper cover are respectively provided with an electrode spacer sleeve corresponding to the electrode inserting sheet, the electrode inserting sheet extends into the electrode spacer sleeves, an electronic spacer sleeve is arranged between the two electrode spacer sleeves, and the resistor extends into the electronic spacer sleeve; an inner cavity is formed in the shell, the top of the inner cavity is open, the capacitor core is arranged in the inner cavity, and the lower end of the upper cover and the circuit board are arranged in the open position of the top of the inner cavity; the capacitor core is encapsulated in the inner cavity of the shell through the first encapsulation layer, and the electronic spacer sleeve of the upper cover is internally provided with the second encapsulation layer. The upper cover of the structure is supported by the top surface of the capacitor core, and the mounting position of the upper cover is highly influenced by the top surface of the capacitor core, so that the external dimensions of the capacitor are not uniform; in addition, the top opening of the metal shell is exposed, so that hands are easy to scrape.
In addition, because the top opening of the metal shell is exposed, the metal belongs to a conductor, and the insulation path between the metal and the electrode is short, the creepage distance is short, and the safety is weak.
Furthermore, since the electrode spacer is provided separately from the upper cover, the mounting thereof is complicated.
Disclosure of Invention
An object of the utility model is to provide a simple structure, reasonable, creepage distance is big, simple to operate, connect reliable condenser.
The purpose of the utility model is realized like this:
the utility model provides a capacitor, includes shell and electric capacity core, and the shell includes cup type aluminum hull and insulating lid, and electric capacity core sets up in cup type aluminum hull, and insulating lid is including plug bush and apron, and the apron setting is in plug bush's inboard, and plug bush inserts the open-top inboard of cup type aluminum hull, its characterized in that: the periphery of the top of the inserting sleeve is provided with an annular convex edge, the annular convex edge is placed on the top surface of the cup-shaped aluminum shell, the width of the annular convex edge is larger than or equal to the wall thickness of the top opening of the cup-shaped aluminum shell, the height of the top surface of the cover plate is lower than that of the top surface of the annular convex edge, and a through hole is reserved between the cover plate and the inner side of the inserting sleeve; and an epoxy resin encapsulating layer is arranged in the cup-shaped aluminum shell and covers the capacitor core and the cover plate.
The purpose of the utility model can also adopt the following technical measures to solve:
as a more specific scheme, the number of the capacitor cores is two, the two capacitor cores are arranged side by side, the lower ends of the two capacitor cores are communicated through a conductive bridge, a discharge resistor is electrically connected between the upper ends of the two capacitor cores and arranged at the outer sides of the two capacitor cores, and an insulating spacer is further arranged between the discharge resistor and the capacitor cores; the capacitor core protection structure is characterized by further comprising a plastic sleeve, wherein the plastic sleeve is provided with two concave cavities corresponding to the two capacitor cores, a partition plate is arranged between the concave cavities, the partition plate is provided with a yielding groove corresponding to the conductive bridge and the discharge resistor, and the capacitor cores are inserted into the concave cavities from bottom to bottom.
As a further proposal, the bottom of the plug bush is matched with the top of the plastic sleeve in a concave-convex positioning way.
As a further scheme, two electrode sheaths are arranged at the top surface of the cover plate corresponding to the upper ends of the two capacitor cores, the two electrode sheaths are mutually separated, and an opening is formed in the inner cavity of the cover plate corresponding to the electrode sheaths; the equal electric connection of top surface of two electric capacity cores has the pin, and the pin is from supreme down to pass the inner chamber that stretches into the electrode sheath behind the trompil.
As a further scheme, an electrode sheath is arranged at the upper end of the top surface of the cover plate corresponding to the space between the two capacitor cores, and an opening is formed in the inner cavity of the cover plate corresponding to the electrode sheath; the top surface of one capacitor core is electrically connected with a pin, the pin extends to a position between the two capacitor cores, and the pin penetrates through the opening from bottom to top and then extends into the inner cavity of the electrode sheath; the top surface of the other capacitor core is electrically connected with a lead-out wire, and the lead-out wire extends out of the cup-shaped aluminum shell. The length of the lead-out wire can be determined according to the wiring position of an installation occasion so as to reduce the design limit of the circuit board; in addition, the outer end of the lead-out wire can be connected with a wiring lug, so that the lead-out wire is convenient to be connected with a wiring terminal and other leads.
As a further scheme, the top surface of one capacitor core is electrically connected with a high-voltage diode, and the high-voltage diode extends out of the cup-shaped aluminum shell. One end of the high-voltage diode is electrically connected with the capacitor core, and the other end of the high-voltage diode is used for being connected with the ground wire.
Another object of the present invention is to provide a capacitor case with a simple and reasonable structure, which prevents the edge of the opening of the cup-shaped aluminum case from being scratched, and ensures the controllable external dimension of the capacitor case.
Another object of the present invention is achieved as follows:
the utility model provides a capacitor case structure, includes cup type aluminum hull and insulating lid, and insulating lid is including plug bush and apron, and the apron setting is in plug bush's inboard, and the open-top that the cup type aluminum hull was inserted to the plug bush is inboard, its characterized in that: the top periphery of plug bush is equipped with annular chimb, and annular chimb holds the top surface of putting at cup type aluminum hull, and the width of annular chimb is more than or equal to the open-top's of cup type aluminum hull wall thickness, the top surface height of apron is less than the top surface height of annular chimb, leaves the through-hole between apron and the inboard of plug bush. The packaging material for packaging the capacitor core can overflow to the cover plate through the through hole and cover the upper surface of the cover plate, so that the connection is more reliable, and the sealing performance is better.
The other purpose of the utility model can also be solved by adopting the following technical measures:
as a more specific scheme, the top surface of the cover plate is provided with an electrode sheath, the cover plate is provided with an opening hole corresponding to the inner cavity of the electrode sheath, and the opening hole is communicated with the inner cavity of the electrode sheath and the inner part of the cup-shaped aluminum shell. The openings are used for allowing the electrodes to pass through, and packaging materials used for packaging the capacitor core can enter the electrode sheath through the openings, so that the sealing performance is further improved.
As a further scheme, the upper edge and the lower edge of the annular convex edge are both provided with arc chamfers, so that the annular convex edge is smoother.
As a further aspect, the electrode sheaths are provided in one to three, and when two or three electrode sheaths are provided, the respective electrode sheaths are spaced apart from each other.
As a further scheme, the plug bush, the cover plate and the electrode sheath are integrally formed in an injection molding mode, and the installation is more convenient.
The utility model has the advantages as follows:
(1) the insulating cover body of the utility model is provided with the annular convex edge and is placed on the opening of the cup-shaped aluminum shell through the annular convex edge, thereby preventing the edge of the opening of the cup-shaped aluminum shell from scraping hands and ensuring the external dimensions of the capacitor shell assembled each time to be consistent;
(2) the annular convex edge of the utility model effectively increases the path length from the cup-shaped aluminum shell to the inside of the electrode sheath, namely, the creepage distance is increased, so that the capacitor is safer and more reliable to use;
(3) the utility model discloses an integrative injection moulding of insulating lid, it is more convenient to install;
(4) the epoxy resin encapsulating layer of the utility model covers the cover plate, so that the insulating cover body and the cup-shaped aluminum shell are fixed together, and the connection is firm and controllable;
(5) the utility model discloses a condenser is mainly applied to the microwave oven field.
Drawings
Fig. 1 is an exploded schematic view of an embodiment of the capacitor case of the present invention.
Fig. 2 is a schematic view of the top view structure of the middle insulation cover of the present invention.
FIG. 3 is a schematic sectional view A-A of FIG. 2.
Fig. 4 is a schematic view of the front view structure of the middle insulation cover of the present invention.
FIG. 5 is a schematic sectional view of the structure of FIG. 4B-B.
Fig. 6 is a schematic view of the assembled cross-section of the present invention.
Fig. 7 is an exploded schematic view of a capacitor according to a first embodiment of the present invention.
Fig. 8 is a schematic structural view of the assembled capacitor according to the first embodiment of the present invention.
Fig. 9 is a schematic top view of fig. 8.
Fig. 10 is a schematic sectional structure view of C-C of fig. 9.
Fig. 11 is an exploded schematic view of a second embodiment of the middle capacitor of the present invention.
Fig. 12 is another angle structure diagram of fig. 11.
Fig. 13 is a schematic structural view of a second embodiment of the middle capacitor according to the present invention after assembly.
Fig. 14 is a schematic top view of the structure of fig. 13.
Fig. 15 is a schematic sectional view of fig. 14 taken along line D-D.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
In a first embodiment, referring to fig. 1 to 6, a capacitor case structure includes a cup-shaped aluminum case 2 and an insulating cover body 1, where the insulating cover body 1 includes an insertion sleeve 11 and a cover plate 14, the cover plate 14 is disposed on an inner side of the insertion sleeve 11, the insertion sleeve 11 is inserted into an inner side of a top opening of the cup-shaped aluminum case 2, an annular flange 12 is disposed on a top periphery of the insertion sleeve 11, the annular flange 12 is supported on a top surface of the cup-shaped aluminum case 2, and a width of the annular flange 12 is greater than a wall thickness of the top opening of the cup-shaped aluminum case 2. The upper edge and the lower edge of the annular convex edge 12 are both provided with arc chamfers.
The top surface of the cover plate 14 is lower than the top surface of the annular flange 12, and a through hole 15 is reserved between the cover plate 14 and the inner side of the insertion sleeve 11.
The top surface of the cover plate 14 is provided with an electrode sheath 13, the cover plate 14 is provided with an opening 16 corresponding to the inner cavity of the electrode sheath 13, and the opening 16 is communicated with the inner cavity of the electrode sheath 13 and the inner part of the cup-shaped aluminum shell 2.
The number of the electrode sheaths 13 is two, and the two electrode sheaths 13 are spaced apart from each other.
The plug bush 11, the cover plate 14 and the electrode sheath 13 are integrally injection-molded.
The capacitor shell is mainly applied to microwave oven capacitors, and the capacitor is assembled in the following mode: the capacitor core (not shown in the figure) is well insulated and protected from the outside, then is placed in the cup-shaped aluminum shell 2, the insulating cover body 1 is covered, and then epoxy resin is injected into the cup-shaped aluminum shell 2 through the through hole 15 of the insulating cover body 1 until the epoxy resin is full to cover the cover plate 14 and the top surface of the opening 16 of the electrode sheath 13.
In the second embodiment, referring to fig. 7 to 10 and combining fig. 1 to 6, a capacitor includes a housing and a capacitor core 3, the housing includes a cup-shaped aluminum shell 2 and an insulating cover body 1, the capacitor core 3 is disposed in the cup-shaped aluminum shell 2, the insulating cover body 1 includes an insertion sleeve 11 and a cover plate 14, the cover plate 14 is disposed inside the insertion sleeve 11, the insertion sleeve 11 is inserted inside a top opening of the cup-shaped aluminum shell 2, an annular flange 12 is disposed on a top periphery of the insertion sleeve 11, the annular flange 12 is supported on a top surface of the cup-shaped aluminum shell 2, a width of the annular flange 12 is greater than or equal to a wall thickness of the top opening of the cup-shaped aluminum shell 2, a height of the top surface of the cover plate 14 is lower than a height of the annular flange 12, and a through hole 15 is left between the cover plate 14 and the inside of the insertion sleeve 11; an epoxy resin encapsulating layer 6 is arranged in the cup-shaped aluminum shell 2, and the capacitor core 3 and the cover plate 14 are covered by the epoxy resin encapsulating layer 6.
The capacitor comprises two capacitor cores 3, wherein the two capacitor cores 3 are arranged side by side, the lower ends of the two capacitor cores 3 are communicated through a conductive bridge 34, a discharge resistor 4 is electrically connected between the upper ends of the two capacitor cores 3, the discharge resistor 4 is arranged on the outer sides of the two capacitor cores 3, and an insulating spacer 32 is arranged between the discharge resistor 4 and the capacitor cores 3; the capacitor core structure further comprises a plastic sleeve 5, the plastic sleeve 5 is provided with two concave cavities 52 corresponding to the two capacitor cores 3, a partition plate 53 is arranged between the concave cavities 52, the partition plate 53 is provided with a yielding groove 54 corresponding to the conductive bridge 34 and the discharge resistor 4, and the capacitor cores 3 are inserted into the concave cavities 52 from bottom to bottom.
The bottom of the plug bush 11 is in concave-convex positioning fit with the top of the plastic sleeve 5. Specifically, the bottom of the plug bush 11 is provided with a notch 17, the top of the plastic bush 5 is provided with a lug 51, and the lug 51 is in plug fit with the notch 17.
The top surface of the cover plate 14 is provided with two electrode sheaths 13 corresponding to the upper ends of the two capacitor cores 3, the two electrode sheaths 13 are mutually separated, and the inner cavity of the cover plate 14 corresponding to the electrode sheaths 13 is provided with an opening 16; the top surfaces of the two capacitor cores 3 are electrically connected with pins 31, and the pins 31 penetrate through the open holes 16 from bottom to top and then extend into the inner cavity of the electrode sheath 13.
The difference between the third embodiment and the second embodiment is that: referring to fig. 11 to 15, an electrode sheath 13 is disposed on the top surface of the cover plate 14 corresponding to the upper end between the two capacitor cores 3, and an opening 16 is disposed in the inner cavity of the cover plate 14 corresponding to the electrode sheath 13; the top surface of one capacitor core 3 is electrically connected with a pin 31, the pin 31 extends to a position between the two capacitor cores 3, and the pin 31 penetrates through the opening 16 from bottom to top and then extends into the inner cavity of the electrode sheath 13; the top surface of the other capacitor core 3 is electrically connected with a lead-out wire 33, and the lead-out wire 33 extends out of the cup-shaped aluminum shell 2. The outer end of the lead-out wire 33 is provided with a lug 8.
The top surface of one of the capacitor cores 3 is electrically connected with a high-voltage diode 7, and the high-voltage diode 7 extends out of the cup-shaped aluminum shell 2.
Claims (10)
1. The utility model provides a capacitor, includes shell and electric capacity core (3), and the shell includes cup type aluminum hull (2) and insulating cover (1), and electric capacity core (3) set up in cup type aluminum hull (2), and insulating cover (1) is including plug bush (11) and apron (14), and apron (14) set up in the inboard of plug bush (11), and plug bush (11) insert the open-top inboard of cup type aluminum hull (2), its characterized in that: an annular convex edge (12) is arranged on the periphery of the top of the plug bush (11), the annular convex edge (12) is placed on the top surface of the cup-shaped aluminum shell (2), the width of the annular convex edge (12) is larger than or equal to the wall thickness of an opening at the top of the cup-shaped aluminum shell (2), the height of the top surface of the cover plate (14) is lower than that of the top surface of the annular convex edge (12), and a through hole (15) is reserved between the cover plate (14) and the inner side of the plug bush (11); an epoxy resin encapsulating layer (6) is arranged in the cup-shaped aluminum shell (2), and the capacitor core (3) and the cover plate (14) are covered by the epoxy resin encapsulating layer (6).
2. The capacitor of claim 1, wherein: the capacitor comprises two capacitor cores (3), wherein the two capacitor cores (3) are arranged side by side, the lower ends of the two capacitor cores (3) are communicated through a conductive bridge (34), a discharge resistor (4) is electrically connected between the upper ends of the two capacitor cores (3), the discharge resistor (4) is arranged on the outer sides of the two capacitor cores (3), and an insulating spacer (32) is arranged between the discharge resistor (4) and the capacitor cores (3); the capacitor core structure is characterized by further comprising a plastic sleeve (5), the plastic sleeve (5) is provided with two concave cavities (52) corresponding to the two capacitor cores (3), a partition plate (53) is arranged between the concave cavities (52), the partition plate (53) is provided with a yielding groove (54) corresponding to the conductive bridge (34) and the discharge resistor (4), and the capacitor cores (3) are inserted into the concave cavities (52) from bottom to bottom.
3. The capacitor of claim 2, wherein: the bottom of the plug bush (11) is in concave-convex positioning fit with the top of the plastic sleeve (5).
4. The capacitor of claim 2, wherein: two electrode sheaths (13) are arranged on the top surface of the cover plate (14) corresponding to the upper ends of the two capacitor cores (3), the two electrode sheaths (13) are separated from each other, and an opening (16) is formed in the cover plate (14) corresponding to the inner cavity of the electrode sheaths (13); the top surfaces of the two capacitor cores (3) are electrically connected with pins (31), and the pins (31) penetrate through the open holes (16) from bottom to top and then extend into the inner cavity of the electrode sheath (13).
5. The capacitor of claim 2, wherein: an electrode sheath (13) is arranged at the upper end of the top surface of the cover plate (14) corresponding to the space between the two capacitor cores (3), and an opening (16) is arranged in the inner cavity of the cover plate (14) corresponding to the electrode sheath (13); the top surface of one capacitor core (3) is electrically connected with a pin (31), the pin (31) extends to a position between the two capacitor cores (3), and the pin (31) penetrates through the opening (16) from bottom to top and then extends into the inner cavity of the electrode sheath (13); the top surface of the other capacitor core (3) is electrically connected with a lead-out wire (33), and the lead-out wire (33) extends out of the cup-shaped aluminum shell (2).
6. A capacitor according to claim 4 or 5, wherein: the top surface of one capacitor core (3) is electrically connected with a high-voltage diode (7), and the high-voltage diode (7) extends out of the cup-shaped aluminum shell (2).
7. The utility model provides an outer shell of condenser, includes cup type aluminum hull (2) and insulating lid (1), and insulating lid (1) is including plug bush (11) and apron (14), and apron (14) set up in the inboard of plug bush (11), and plug bush (11) insert the open-top of cup type aluminum hull (2) inboard, its characterized in that: the top periphery of plug bush (11) is equipped with annular chimb (12), and annular chimb (12) hold the top surface at cup type aluminum hull (2), and the width of annular chimb (12) is more than or equal to the open-top's of cup type aluminum hull (2) wall thickness, the top surface height of apron (14) is less than the top surface height of annular chimb (12), leaves through-hole (15) between apron (14) and the inboard of plug bush (11).
8. The capacitor housing of claim 7, wherein: the electrode sheath (13) is arranged on the top surface of the cover plate (14), the opening (16) is formed in the inner cavity of the cover plate (14) corresponding to the electrode sheath (13), and the opening (16) is communicated with the inner cavity of the electrode sheath (13) and the interior of the cup-shaped aluminum shell (2).
9. A capacitor housing as defined in claim 8, wherein: the number of the electrode sheaths (13) is one to three, and when two or three electrode sheaths (13) are provided, the electrode sheaths (13) are spaced apart from each other.
10. A capacitor housing as defined in claim 8, wherein: the plug bush (11), the cover plate (14) and the electrode sheath (13) are integrally formed by injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020521411.6U CN211578581U (en) | 2020-04-10 | 2020-04-10 | Capacitor and shell thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020521411.6U CN211578581U (en) | 2020-04-10 | 2020-04-10 | Capacitor and shell thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211578581U true CN211578581U (en) | 2020-09-25 |
Family
ID=72527443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020521411.6U Active CN211578581U (en) | 2020-04-10 | 2020-04-10 | Capacitor and shell thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211578581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113327767A (en) * | 2021-05-27 | 2021-08-31 | 安徽浩天新能源科技有限公司 | Power capacitor with integrated injection molding end cover |
-
2020
- 2020-04-10 CN CN202020521411.6U patent/CN211578581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113327767A (en) * | 2021-05-27 | 2021-08-31 | 安徽浩天新能源科技有限公司 | Power capacitor with integrated injection molding end cover |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230816 Address after: 528300 Lunjiao Industrial Zone, Lunjiao Street, Shunde District, Foshan City, Guangdong Province Patentee after: GUANGDONG MENLO ELECTRIC POWER Co.,Ltd. Address before: 528300 3rd floor, Ming Road Industrial Park, No.6 north, Xinxi Third Road, Lunjiao Industrial Zone, Xiyong village committee, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN KONGXING MATERIAL APPLICATION RESEARCH INSTITUTE Co.,Ltd. |
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| TR01 | Transfer of patent right |