CN212257193U

CN212257193U - Metallized polypropylene film capacitor

Info

Publication number: CN212257193U
Application number: CN202021134466.8U
Authority: CN
Inventors: 孔祥新
Original assignee: Tongling Xintai Electric Apparatus And Capacitor Co ltd
Current assignee: Tongling Xintai Electric Apparatus And Capacitor Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-12-29
Anticipated expiration: 2030-06-18

Abstract

A metallized polypropylene film capacitor comprising a housing; a core is installed inside the shell, a pin is arranged at the top end of the core, a rubber sealing gasket is arranged at the top of the core, the pin penetrates through the rubber sealing gasket, an end cover is sleeved at an opening at the top of the shell, a terminal is arranged on the top surface of the end cover, a contact piece is arranged on the bottom surface of the end cover, and the contact piece is electrically connected with the terminal; the top end of the pin is connected with the bottom end of a lead in a soldering mode, and the top end of the lead is connected with the contact piece in a soldering mode; the utility model discloses utilize stop gear can retrain the location to redundant part, can effectual reduction redundant part to dragging of soldering department to improve the stability of soldering point, can make the lead wire can adopt longer specification simultaneously, the end cover of being convenient for and the soldering of lead wire assemble between shell, core and the end cover of also being convenient for simultaneously.

Description

Metallized polypropylene film capacitor

Technical Field

The utility model belongs to the technical field of the capacitor processing, in particular to metallization polypropylene film capacitor.

Background

The metallized polypropylene film capacitor uses a polyester film or a polypropylene film as a medium, and a zinc-aluminum alloy is attached to the surface of the film by a vacuum evaporation method to form an electrode. The capacitor is formed by non-inductive and non-polar winding or lamination. The metallized polypropylene film capacitor has high voltage resistance, high insulation resistance, good impedance frequency characteristic (smaller parasitic inductance), lower ESR, high capacity stability and low loss tangent; the metallized polypropylene film capacitor mainly comprises a shell, a metallized film core, pins and a rubber sealing plug;

when the metallized polypropylene film capacitor is processed, a lead wire is required to be soldered between the end cover and the pin, so that the electrical connection is realized; if the lead is designed to be longer, although the soldering operation space is large, during subsequent assembly, the lead is bent greatly due to excessive redundant parts, and the bent parts can cause bending force to soldering points, so that the soldering parts are easy to break; if the design is short, the redundant portion is small and the bending force is small, but the operation space is limited during soldering, and the soldering quality is not easy to grasp.

SUMMERY OF THE UTILITY MODEL

The utility model provides a metallized polypropylene film capacitor to the not enough of prior art existence, concrete technical scheme as follows:

a metallized polypropylene film capacitor comprising a housing; a core is installed inside the shell, a pin is arranged at the top end of the core, a rubber sealing gasket is arranged at the top of the core, the pin penetrates through the rubber sealing gasket, an end cover is sleeved at an opening at the top of the shell, a terminal is arranged on the top surface of the end cover, a contact piece is arranged on the bottom surface of the end cover, and the contact piece is electrically connected with the terminal;

the top end of the pin is connected with the bottom end of a lead in a soldering mode, the top end of the lead is connected with the contact piece in a soldering mode, and the length of the lead is 4cm-6 cm; the middle part of the lead is a bent redundant part; and a limiting mechanism is sleeved outside the lead and used for positioning the redundant part.

Furthermore, the limiting mechanism comprises a supporting rod, a lower wire clamp and an upper wire clamp, the upper wire clamp is vertically arranged at the top of the side wall of the supporting rod, the lower wire clamp is vertically arranged at the bottom of the side wall, the upper wire clamp is clamped at the top of the redundant part, and the lower wire clamp is clamped at the bottom of the redundant part; the lower wire clamp and the upper wire clamp are both positioned on the same central line.

Further, stop gear is still including fixed chuck, the bottom lateral wall of branch is equipped with perpendicularly fixed chuck, fixed chuck with the pin joint, fixed chuck, lower clamp and last fastener all are located same central line department.

Furthermore, the limiting mechanism further comprises a fixing plate, the fixing plate is vertically arranged at the top end of the supporting rod, the extending direction of the fixing plate is opposite to the extending direction of the fixing chuck, a clamping seat is arranged on the bottom surface of the end cover, and the fixing plate is inserted into the clamping seat.

Further, the contact piece and the card seat are respectively arranged on two sides of the lead.

The utility model has the advantages that:

utilize stop gear can retrain the location to redundant part, can effectual reduction redundant part to the pulling of soldering department to improve the stability of soldering point, can make the lead wire adopt longer specification simultaneously, the soldering of end cover and lead wire of being convenient for also be convenient for assemble between shell, core and the end cover simultaneously.

Drawings

Fig. 1 shows a schematic structural view of a metallized polypropylene film capacitor of the present invention;

fig. 2 shows a schematic structural diagram of the limiting mechanism of the present invention;

FIG. 3 shows an enlarged schematic view of FIG. 1 at A;

fig. 4 shows a schematic view of a connection structure between a limiting mechanism and an end cover of the present invention;

shown in the figure: 1. a housing; 2. a core; 21. a pin; 3. a rubber gasket; 4. a lead wire; 5. A limiting mechanism; 51. a strut; 52. fixing the chuck; 53. a wire clamp; 54. a wire clip is arranged; 55. a fixing plate; 6. an end cap; 61. a terminal; 62. a card holder; 63. and a contact sheet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A metallized polypropylene film capacitor comprising a housing 1; a core 2 is installed inside the shell 1, a pin 21 is arranged at the top end of the core 2, a rubber sealing gasket 3 is arranged at the top of the core 2, the pin 21 penetrates through the rubber sealing gasket 3, an end cover 6 is sleeved at an opening at the top of the shell 1, a terminal 61 is arranged on the top surface of the end cover 6, a contact piece 63 is arranged on the bottom surface of the end cover 6, and the contact piece 63 is electrically connected with the terminal 61;

the top end of the pin 21 is soldered and connected with the bottom end of a lead 4, the top end of the lead 4 is soldered and connected with the contact piece 63, and the length of the lead 4 is 4cm-6 cm; the lead 4 is 4cm-6cm, so that the long-distance soldering requirement can be met, the soldering of the end cover 6 and the lead 4 is simpler and more convenient, and the operation space is wider;

the middle part of the lead 4 is a bent redundant part; the redundant part is a bent redundant part of the lead 4 when the end cover 6 is assembled with the shell 1;

a limiting mechanism 5 is sleeved outside the lead 4, and the limiting mechanism 5 is used for positioning the redundant part; utilize stop gear 5 to come to restrain the location to redundant part, can effectual reduction redundant part to the pulling of soldering department to improve the stability of soldering point, can make the lead wire adopt longer specification simultaneously, be convenient for the soldering of end cover and lead wire, also be convenient for simultaneously assemble between shell, core and the end cover.

As an improvement of the above technical solution, the limiting mechanism 5 includes a supporting rod 51, a lower clamp 53 and an upper clamp 54, the upper clamp 54 is vertically arranged on the top of the side wall of the supporting rod 51, the lower clamp 53 is vertically arranged on the bottom of the side wall, the upper clamp 54 is clamped on the top of the redundant portion, and the lower clamp 53 is clamped on the bottom of the redundant portion; the lower wire clamp 53 and the upper wire clamp 54 are both positioned at the same central line; utilize the fastener can realize with the quick joint of pin, it is simple and convenient to connect, two position spacing simultaneously about two fastener can realize, avoid the power transmission of the redundant part of crooked to the tip of lead wire, upper and lower fastener can offset the power, improves the intensity of contact point.

As an improvement of the above technical solution, the limiting mechanism 5 further includes a fixed chuck 52, the fixed chuck 52 is vertically arranged on the side wall of the bottom end of the supporting rod 51, the fixed chuck 52 is clamped with the pin 21, and the fixed chuck 52, the lower clamp 53 and the upper clamp 54 are all located at the same central line; the fixed chuck 52 is used for integrally fixing the bottom end of the limiting mechanism 5 on the pin 21, so that the stability of the limiting mechanism 5 is improved, and the supporting effect of the limiting mechanism 5 is enhanced.

As an improvement of the above technical solution, the limiting mechanism 5 further includes a fixing plate 55, the fixing plate 55 is vertically disposed at the top end of the supporting rod 51, an extending direction of the fixing plate 55 is opposite to an extending direction of the fixing chuck 52, a clamping seat 62 is disposed on a bottom surface of the end cover 6, and the fixing plate 55 is inserted into the clamping seat 62; fixing plate 55 pegs graft in cassette 62, can realize end cover 6, stop gear 5 and pin 21 three connect as an organic wholely, when can fixing a position the centre gripping to redundant part, still can make things convenient for end cover 6, core 2 is together inserted in shell 1, only connect through lead wire 4 in the past, insert earlier when core 2, then install end cover 6, however end cover 6 can receive pulling of lead wire 4, the installation adjustment space that leads to end cover 6 is limited, can not fully adjust, some errors just can lead to the tin soldering point fracture of end cover 6 and lead wire.

As an improvement of the above technical solution, the contact piece 63 and the card seat 62 are respectively disposed on two sides of the lead 4; the two sides are arranged to ensure that the installation of the limiting mechanism 5 is simpler and more convenient, and the contact point can not be influenced.

As shown in fig. 1, fig. 1 shows a schematic structural diagram of a metallized polypropylene film capacitor of the present invention;

the bottom inside the shell 1 is provided with a core 2, the top surface of the core 2 is glued and connected with a rubber sealing gasket 3, the core 2 is electrically connected with a pin 21, the pin 21 is made of galvanized copper, the top end of the pin 21 is soldered and connected with the bottom end of a lead 4, and the top end of the lead 4 is soldered and connected with a contact piece 63;

the top part of the lead 4 is an upper contact part, the middle part is a redundant part, the bottom part is a lower contact part, the upper contact part is vertically soldered with the contact piece, and the lower contact part is soldered with the pin.

As shown in fig. 2, fig. 2 shows a schematic structural diagram of the limiting mechanism of the present invention;

the left side surface of the cylindrical support rod 51 is vertically provided with an upper wire clamp 54, a lower wire clamp 53 and a fixed chuck 52 from top to bottom in sequence, the upper wire clamp 54, the lower wire clamp 53 and the fixed chuck 52 are elastic rings and can clamp and fix, and the top end of the support rod 51 is vertically provided with a fixed plate 55.

When the utility model is implemented, during processing, the pin 21 is connected with the end cover 6 through the lead 4 outside, the lead 4 is 5cm, so that the welding operation space is large, the operation is convenient, the lower contact part of the lead 4 is soldered with the top end of the pin 21, the upper contact part of the lead 4 is soldered with the contact piece 63, and then;

then, the upper limiting mechanism 5 is installed, the fixing plate 55 is clamped and inserted into the clamping seat 62, then the upper contact part of the lead is adjusted to be in a gentle state without large-amplitude bending, the bottom end of the upper contact part is embedded into the upper wire clamp 54, similarly, the lower contact part is adjusted, so that the top end of the lower contact part is clamped with the lower wire clamp 53, at the moment, the redundant part in the middle is arranged between the upper wire clamp 54 and the lower wire clamp 53 to be in a multi-section bending state, the whole lead can be shaped, and the traction force borne by the contact point is minimum; the fixed chuck 52 is clamped on the pin 21, and at the moment, the end cover 6, the limiting mechanism 5 and the core 2 can be connected into a whole;

the staff holds end cover 6, alright insert core 2 in the shell 1, and end cover 6 also can with the top end opening block of shell 1 simultaneously, can accomplish in one step.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A metallized polypropylene film capacitor characterized by: comprising a housing (1); a core (2) is installed inside the shell (1), a pin (21) is arranged at the top end of the core (2), a rubber sealing gasket (3) is arranged at the top of the core (2), the pin (21) penetrates through the rubber sealing gasket (3), an end cover (6) is sleeved at an opening at the top of the shell (1), a terminal (61) is arranged on the top surface of the end cover (6), a contact piece (63) is arranged on the bottom surface of the end cover (6), and the contact piece (63) is electrically connected with the terminal (61);

the top end of the pin (21) is connected with the bottom end of a lead (4) in a soldering mode, the top end of the lead (4) is connected with the contact piece (63) in a soldering mode, and the length of the lead (4) is 4cm-6 cm; the middle part of the lead (4) is a bent redundant part; and a limiting mechanism (5) is sleeved outside the lead (4), and the limiting mechanism (5) is used for positioning the redundant part.

2. The metallized polypropylene film capacitor of claim 1, wherein: the limiting mechanism (5) comprises a supporting rod (51), a lower wire clamp (53) and an upper wire clamp (54), the upper wire clamp (54) is vertically arranged at the top of the side wall of the supporting rod (51), the lower wire clamp (53) is vertically arranged at the bottom of the side wall, the upper wire clamp (54) is clamped at the top of the redundant part, and the lower wire clamp (53) is clamped at the bottom of the redundant part; the lower wire clamp (53) and the upper wire clamp (54) are located at the same center line.

3. The metallized polypropylene film capacitor of claim 2, wherein: stop gear (5) are still including fixed chuck (52), the bottom lateral wall of branch (51) is equipped with perpendicularly fixed chuck (52), fixed chuck (52) with pin (21) joint, fixed chuck (52), lower clamp (53) and last fastener (54) all are located same central line department.

4. The metallized polypropylene film capacitor of claim 3, wherein: the limiting mechanism (5) further comprises a fixing plate (55), the fixing plate (55) is vertically arranged at the top end of the support rod (51), the extending direction of the fixing plate (55) is opposite to the extending direction of the fixing chuck (52), a clamping seat (62) is arranged on the bottom surface of the end cover (6), and the fixing plate (55) is inserted into the clamping seat (62).

5. The metallized polypropylene film capacitor of claim 4, wherein: the contact piece (63) and the clamping seat (62) are respectively arranged on two sides of the lead (4).