CN214476966U - Capacitor with protective cover and hanging structure - Google Patents

Abstract

The utility model discloses a capacitor with a protective cover and a hanging structure, which comprises a shell, an end cover, a capacitor core, a leading-out part, the protective cover and the hanging structure, wherein the capacitor core is arranged in the shell, the upper end of the shell is connected with the end cover, and the protective cover covers the end cover; the leading-out part penetrates through the end cover, is electrically connected with the capacitor core and penetrates through a threading hole formed in the upper end of the protective cover; the hanging structure comprises a bottom plate and a baffle plate, the bottom plate is connected to the lower end of the shell, and the bottom end of the baffle plate is fixed with the first end of the bottom plate; the top of the baffle is provided with a jack and a hook, and the hook is positioned outside the baffle; the lower end of the protective cover is provided with a flared part which is fixedly connected with the shell and/or the end cover in a rolling way; the inner side surface of the baffle is a cambered surface. The utility model discloses can prevent that the protection casing is not hard up, drop to make the baffle change in mould plastics and reduce the material consumption, reduce the fit clearance between baffle and the casing simultaneously, improve baffle and casing complex compactness, improve holistic steadiness.

Description

Capacitor with protective cover and hanging structure

Technical Field

The utility model relates to a condenser especially relates to a take protection casing and articulate condenser of structure.

Background

A capacitor in the prior art comprises a shell, an end cover, a capacitor core and a leading-out part, wherein part of parts in a combined piece of the end cover are made of plastic materials, so that the fireproof performance is poor, and therefore, a fireproof protective cover (or a protective cap) is additionally arranged on some capacitors, and the end cover is covered by the protective cover, so that the end cover is prevented from burning when encountering fire. Because general protection mode is that helmet lower extreme and casing crimping are fixed, and the crimping mode can't ensure helmet and casing fastness in the axial, lead to the protection casing axial to receive easy the droing when great pulling force to the protection of end cover is inefficacy.

The traditional mounting mode of the capacitor is that a bottom bolt, a nut, a gasket and the like are adopted for fixed mounting, but the mounting mode is not convenient enough and wastes time and labor. Therefore, the capacitor hook is formed by a bottom plate, a baffle and a hook in the prior art, a threaded hole is formed in the middle of the bottom plate and is in threaded connection with a stud at the bottom of a capacitor shell, the bottom end of the baffle is fixed to one end of the bottom plate, a jack and a hook are arranged at the top end of the baffle, and the jack and the hook are matched with a mounting female plug to achieve rapid installation of a capacitor. After the capacitor is installed, the capacitor and the hook part are in a suspended state, the capacitor is heavy, and vibration factors exist in an external ring shape, so that the requirement on the strength of the whole capacitor hook is high. Therefore, the inner side surface of the baffle in the prior art is a straight surface and is provided with the reinforcing ribs, and the strength of the baffle is improved by the reinforcing ribs. However, the method not only increases the injection molding difficulty of the baffle plate, increases the materials of the baffle plate, but also occupies a certain space between the capacitor shell and the baffle plate, so that the matching tightness between the baffle plate and the capacitor shell is poor, and the improvement of the overall stability is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that prior art exists, a take protection casing and articulate condenser of structure is provided.

The utility model provides a technical scheme that its technical problem adopted is: a capacitor with a protective cover and a hanging structure comprises a shell, an end cover, a capacitor core, a leading-out part, the protective cover and the hanging structure, wherein the capacitor core is arranged in the shell, the upper end of the shell is connected with the end cover, and the protective cover covers the end cover; the leading-out part penetrates through the end cover, is electrically connected with the capacitor core and penetrates through a threading hole formed in the upper end of the protective cover; the hanging structure comprises a bottom plate and a baffle plate, the bottom plate is connected to the lower end of the shell, and the bottom end of the baffle plate is fixed with the first end of the bottom plate; the top of the baffle is provided with a jack and a hook, and the hook is positioned outside the baffle; the lower end of the protective cover is provided with a flared part which is fixedly connected with the shell and/or the end cover in a rolling way; the inner side surface of the baffle is a cambered surface.

Furthermore, the peripheral edge of the end cover is provided with a flange part positioned outside the shell, and the flared part of the protective cover is fixedly connected with the flange part in a rolling way.

Further, the flange portion has a G-shaped cross section, and an open side thereof is abutted against an outer side surface of the housing.

Furthermore, the bottom of the flared part forms an inward flange abutting against the bottom end of the flange part through rolling connection, and the upper part of the flared part abuts against the top of the flange part.

Furthermore, the leading-out part comprises a cable and two leading-out terminals, the leading-out terminals are arranged on the end covers, a sealing ring is arranged between the leading-out terminals and the end covers, one ends of the leading-out terminals are positioned in the end covers and electrically connected with the capacitor cores, the other ends of the leading-out terminals are connected with the cable, and the cable penetrates through the threading holes; or the end cover is an explosion-proof end cover, an explosion-proof sheet is arranged on the lower side of the explosion-proof end cover, the leading-out part comprises a cable, two outer electrode plates and two inner electrode plates, and the inner electrode plates are arranged at the lower end of the explosion-proof sheet and are electrically connected with the capacitor core; the outer electrode plate is arranged on the upper side of the explosion-proof end cover and connected with the cable, and the cable penetrates through the threading hole; the outer electrode plate is connected with the inner electrode plate through a rivet, and a sealing ring is matched between the rivet and the explosion-proof end cover.

Furthermore, the upper end of the protective cover is provided with a threading pipe, the threading pipe is communicated with the threading hole, and the cable is hooped by the threading pipe.

Furthermore, a stud is arranged at the lower end of the shell, a threaded hole is formed in the middle of the bottom plate, and the stud is in threaded connection with the threaded hole.

Furthermore, a convex column is arranged in the middle of the bottom end of the bottom plate, and the threaded hole extends downwards along the convex column; the bottom end of the bottom plate is provided with a plurality of reinforcing ribs which respectively take the convex columns as centers and extend to the radial direction of the convex columns.

Furthermore, the inner side surface of the baffle is an arc surface, and the circle center of the arc surface is positioned at the inner side of the baffle; the outer side surface of the baffle is a straight surface.

Further, the bottom plate is provided with a second end opposite to the first end, and the outlines of two sides of the bottom plate between the first end and the second end are respectively straight lines.

Furthermore, the width of the baffle is gradually increased from top to bottom, and/or a positioning groove communicated with the insertion hole is formed in the top of the outer side surface of the baffle.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. because the lower end of the protective cover is provided with the flaring part which is fixedly connected with the shell and/or the end cover in a rolling way, the protective cover is firmly fixed in the axial direction and is not easy to loosen and fall off under the action of axial tension; because the medial surface of baffle is the cambered surface, under the same horizontal atress, is higher than straight face intensity, therefore the medial surface of baffle need not to set up the strengthening rib and can satisfy the installation strength requirement to make the baffle change in mould plastics and reduce the materials, reduce the fit clearance between baffle and the casing simultaneously, improve baffle and casing complex compactness, improve holistic steadiness.

2. The edge around the end cover is provided with a flange part outside the shell, the flared part of the protective cover is fixedly connected with the flange part in a rolling way, so that the contact connecting surface of the end cover and the shell is larger, the firmness of the connection of the end cover and the shell is favorably improved, and the structure of the shell does not need to be improved, thereby reducing the production cost. The cross section of the flange part is G-shaped, so that the strength of the flange part can be improved, the contact area between the flange part and the flared part of the protective cover can be increased, and the crimping firmness of the flared part of the protective cover and the flange part is further improved.

3. The profile on both sides that the bottom plate is located between first end and the second end is the straight line respectively, makes the utility model discloses can utilize this both sides as the impetus that the manipulator snatched to make the casing and the bottom of condenser can realize automatic assembly.

4. The width of baffle from top to bottom is crescent, can not only reduce the top material of baffle, can also ensure that the baffle supports the condenser more steadily. The top of the outer side surface of the baffle is provided with a positioning groove communicated with the insertion hole, so that the hanging structure can be prevented from shaking left and right after being installed.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the utility model discloses a take protection casing and articulate condenser of structure is not limited to the embodiment.

Drawings

Fig. 1 is a schematic perspective view of the first embodiment of the present invention;

FIG. 2 is a cross-sectional view of the first embodiment of the present invention (without the hanging structure);

FIG. 3 is an enlarged view of portion A of FIG. 2 according to an embodiment;

fig. 4 is a front view of the protective cover according to the first embodiment of the present invention;

fig. 5 is a bottom view of the protective cover according to the first embodiment of the present invention;

fig. 6 is a first perspective view of the hanging structure according to the first embodiment of the present invention;

fig. 7 is a schematic perspective view illustrating a second embodiment of a hanging structure of the present invention;

fig. 8 is a front view of the hanging structure of the first embodiment of the present invention;

FIG. 9 is a right side view of the hanging structure of the first embodiment of the present invention;

fig. 10 is a top view of the hanging structure according to the first embodiment of the present invention;

fig. 11 is a B-B sectional view of the hitch structure of the first embodiment of the present invention;

figure 12 is a cross-sectional view of the explosion proof end cap portion of the second embodiment of the invention.

Detailed Description

In an embodiment, please refer to fig. 1 to 11, a capacitor with a protective cover and a hanging structure of the present invention includes a housing 1, an end cap 5, a capacitor core (not shown), a leading-out portion, a protective cover 2 and a hanging structure 4, wherein the capacitor core is disposed in the housing 1, the upper end of the housing 1 is connected to the end cap 5, and the protective cover 2 covers the end cap 5; the leading-out part penetrates through the end cover 5, is electrically connected with the capacitor core and penetrates through a threading hole 23 formed in the upper end of the protective cover 2. The lower end of the protective cover 2 is provided with a flared part 21, and the flared part 21 is fixedly rolled with the shell 1 and/or the end cover 5. The hanging structure 4 comprises a bottom plate 41 and a baffle plate 42, the bottom plate 41 is connected to the lower end of the shell 1, and the bottom end of the baffle plate 42 is fixed with the first end of the bottom plate 41; the top of the baffle plate 42 is provided with a plug hole 43 and a hook 44, and the hook 444 is positioned outside the baffle plate 42. The inner side 421 of the baffle 42 is a cambered surface, and the outer side of the baffle 42 is a straight surface, so as to prevent instable installation. The inner side 421 of the baffle 42 means a side of the baffle 42 facing the casing 1 in the assembled state, and the outer side 422 of the baffle 42 is opposite to the inner side 421.

In this embodiment, a flange 51 is provided on the peripheral edge of the cap 5 to be positioned outside the housing 1, and the flared portion 21 of the hood 2 is crimped and fixed to the flange 51. As shown in fig. 3, the flange 51 has a G-shaped cross section, and an open side thereof is abutted against the outer surface of the housing 1.

In this embodiment, as shown in fig. 3, the bottom of the flared portion 21 is formed into an inner flange 211 abutting against the bottom end of the flange 51 by rolling, and the upper portion of the flared portion 21 is arc-shaped and abuts against the top of the flange 51.

In this embodiment, the capacitor core adopts a zinc-aluminum composite edge-thickened metalized polyester film or a zinc-aluminum composite edge-thickened metalized polypropylene film, so that the voltage resistance of the capacitor core is greatly improved, and the dielectric strength of the capacitor is improved.

In this embodiment, the leading-out part includes cable conductor 3 and two leading-out terminals 6, leading-out terminal 6 sets up end cover 5 to with be equipped with sealing washer 7 between the end cover 5, and leading-out terminal 6 one end is located in the end cover 5, and set up paper gasket 8 and with the electric connection of electric capacity core, the other end of leading-out terminal 6 passes insulating bowl 9 to connect cable conductor 3 through electrode slice 10, this cable conductor 3 passes through wires hole 23, electrode slice 10 is located insulating bowl 9, is filled with epoxy 20 in insulating bowl 9.

In this embodiment, 2 upper ends of protection casing are equipped with outside extension's threading pipe 22, this threading pipe 22 with through wires hole 23 is linked together, and this threading pipe 22 cramps cable conductor 3 prevents that cable conductor 3 from rotating, taking off, has solved among the prior art cable conductor because of not being effectively fixed easy rotation, taking off for the problem of cable conductor and electrode connection are bad or inefficacy.

In this embodiment, the lower end of the housing 1 is provided with a stud 11, the middle of the bottom plate 41 is provided with a threaded hole 411, and as shown in fig. 6, the stud 11 is in threaded connection with the threaded hole 411. A convex column 45 is arranged in the middle of the bottom end of the bottom plate 41, and the threaded hole 411 extends downwards along the convex column 45; the bottom end of the bottom plate 41 is provided with a plurality of reinforcing ribs 46, and the plurality of reinforcing ribs 46 extend radially towards the convex column 45 by taking the convex column 45 as a center. Specifically, the number of the reinforcing ribs 46 is two, and the two reinforcing ribs 46 are located in the same direction.

In this embodiment, the inner side 421 of the baffle 42 is an arc surface, and the center of the arc surface is located inside the baffle 42.

In this embodiment, the bottom plate 41 has a second end opposite to the first end, and the outlines of two sides of the bottom plate 41 between the first end and the second end are respectively straight lines. The profile of the second end is a convex arc line.

In this embodiment, the width of the baffle 42 is gradually increased from top to bottom.

In this embodiment, the top of the outer side 422 of the baffle 42 is provided with a positioning slot 23 communicated with the insertion hole 43, as shown in fig. 6 and 11.

In this embodiment, the hook 44 is provided with an anti-slip hook 441 at the bottom of the side facing the outer side surface.

In this embodiment, the insertion hole 43 is a convex insertion hole.

The utility model discloses a take protection casing and articulate condenser of structure, during the assembly, accomplish the basic assembly of casing 1, electric capacity core, end cover 5, extraction portion earlier, sheathe in protection casing 2 again to make the flaring portion 21 of protection casing 2 and end cover 5 flange portion 51 all around book connect fixedly. After the flared part 21 of the shield 2 is crimped with the flange part 51 of the end cap 5, the flared part 21 and the flange part 51 are matched to form up-and-down limiting, so that the shield 2 is fixed very firmly in the axial direction, and the shield 2 is not easy to loosen and fall off under the action of axial tension, thereby the shield 2 has a protection effect on the end cap 5 and the sealing ring 7, the insulating bowl 9, the epoxy resin 20 and the like thereon.

When the device is applied, the threaded hole 411 of the bottom plate 41 is in threaded connection with the stud 11 at the bottom end of the shell 1, at the moment, the baffle plate 42 is matched at one side of the shell 1, and the inner side surface 421 of the baffle plate 42 faces the shell 1; the hanging structure is matched with the installation female plug of the capacitor through the hook 44 and the jack 43, and at the moment, the positioning groove 23 on the outer side surface of the baffle 42 is embedded with the corresponding part of the installation female plug, so that the whole hanging structure is prevented from shaking left and right. Because baffle 42's medial surface 421 is the cambered surface, under the same horizontal atress, is higher than straight face intensity, therefore baffle 42's medial surface 421 need not to set up strengthening rib 46 can satisfy the installation strength requirement to make baffle 42 change in moulding plastics and reduce the materials, reduce the fit clearance between baffle 42 and the capacitor case simultaneously, improve baffle 42 and 1 complex compactness of casing, thereby improve holistic steadiness. The profile on both sides that bottom plate 41 is located between first end and the second end is the straight line respectively, makes the utility model discloses can utilize this both sides as the impetus that the manipulator snatched to make the casing and the bottom of condenser can realize automatic assembly.

Example two

Referring to fig. 12, the capacitor with the protective cover and the hanging structure according to the present invention is different from the first embodiment in that: the end cover is an explosion-proof end cover 5 ', an explosion-proof sheet 30 is arranged on the lower side of the explosion-proof end cover 5', the leading-out part comprises a cable 3, two outer electrode plates 50 and two inner electrode plates 40, and the inner electrode plates 40 are arranged at the lower end of the explosion-proof sheet 30 and are electrically connected with the capacitor core; the outer electrode plate 50 is arranged on the upper side of the explosion-proof end cover 5' and is connected with the cable 3, and the cable 3 penetrates through the threading hole; the outer electrode plate 50 is connected with the inner electrode plate 40 through a rivet 60, and a sealing ring 7 is matched between the rivet 60 and the explosion-proof end cover 5'.

In this embodiment, the rivet 60 passes through the explosion-proof end cap 5 ', the explosion-proof sheet 30 and the insulating bowl 70 located on the upper side of the explosion-proof end cap 5', the outer electrode sheet 50 is located in the insulating bowl 70, and the insulating bowl 70 is filled with epoxy resin 80; a paper gasket 90 is arranged between the explosion-proof sheet 30 and the sealing ring 7.

The utility model discloses a take protection casing and articulate condenser of structure, it still has explosion-proof function, works as the utility model discloses when inside breaks down, explosion-proof end cover 5' warp the evagination for rivet 60 is thrown off with interior electrode slice 40, thereby makes the inside open circuit of condenser, reaches explosion-proof effect.

The above-mentioned embodiment is only used for further explaining the utility model discloses a take protection casing and articulate condenser of structure, nevertheless the utility model discloses do not confine the embodiment to, all be according to the utility model discloses a technical entity does any simple modification, equivalent change and the decoration to above embodiment, all falls into the utility model discloses technical scheme's protection scope.

Claims (10)

1. A capacitor with a protective cover and a hanging structure comprises a shell, an end cover, a capacitor core, a leading-out part, the protective cover and the hanging structure, wherein the capacitor core is arranged in the shell, the upper end of the shell is connected with the end cover, and the protective cover covers the end cover; the leading-out part penetrates through the end cover, is electrically connected with the capacitor core and penetrates through a threading hole formed in the upper end of the protective cover; the hanging structure comprises a bottom plate and a baffle plate, the bottom plate is connected to the lower end of the shell, and the bottom end of the baffle plate is fixed with the first end of the bottom plate; the top of the baffle is provided with a jack and a hook, and the hook is positioned outside the baffle; the method is characterized in that: the lower end of the protective cover is provided with a flared part which is fixedly connected with the shell and/or the end cover in a rolling way; the inner side surface of the baffle is a cambered surface.

2. The capacitor with shield and hanging structure of claim 1, wherein: the peripheral edge of the end cover is provided with a flange part positioned outside the shell, and the flared part of the protective cover is fixedly connected with the flange part in a rolling way.

3. The capacitor with shield and hanging structure of claim 2, wherein: the flange portion has a G-shaped cross section, and an open side thereof is abutted against the outer side surface of the housing.

4. The capacitor with shield and hanging structure of claim 2, wherein: the bottom of the flaring part forms an inner flanging which is abutted against the bottom end of the flange part through rolling connection, and the upper part of the flaring part is abutted against the top of the flange part.

5. The capacitor with shield and hanging structure of claim 1, wherein: the leading-out part comprises a cable and two leading-out terminals, the leading-out terminals are arranged on the end covers, a sealing ring is arranged between the leading-out terminals and the end covers, one ends of the leading-out terminals are positioned in the end covers and are electrically connected with the capacitor cores, the other ends of the leading-out terminals are connected with the cable, and the cable penetrates through the threading holes; or the end cover is an explosion-proof end cover, an explosion-proof sheet is arranged on the lower side of the explosion-proof end cover, the leading-out part comprises a cable, two outer electrode plates and two inner electrode plates, and the inner electrode plates are arranged at the lower end of the explosion-proof sheet and are electrically connected with the capacitor core; the outer electrode plate is arranged on the upper side of the explosion-proof end cover and connected with the cable, and the cable penetrates through the threading hole; the outer electrode plate is connected with the inner electrode plate through a rivet, and a sealing ring is matched between the rivet and the explosion-proof end cover.

6. The capacitor with shield and hanging structure of claim 5, wherein: the upper end of the protective cover is provided with a threading pipe, the threading pipe is communicated with the threading hole, and the threading pipe hoops the cable.

7. The capacitor with shield and hanging structure of claim 1, wherein: the lower end of the shell is provided with a stud, the middle part of the bottom plate is provided with a threaded hole, and the stud is in threaded connection with the threaded hole; the middle part of the bottom end of the bottom plate is provided with a convex column, and the threaded hole extends downwards along the convex column; the bottom end of the bottom plate is provided with a plurality of reinforcing ribs which respectively take the convex columns as centers and extend to the radial direction of the convex columns.

8. The capacitor with shield and hanging structure of claim 1, wherein: the inner side surface of the baffle is an arc surface, and the circle center of the arc surface is positioned at the inner side of the baffle; the outer side surface of the baffle is a straight surface.

9. The capacitor with shield and hanging structure of claim 1, wherein: the bottom plate is provided with a second end opposite to the first end, and the outlines of two sides of the bottom plate between the first end and the second end are respectively straight lines.

10. The capacitor with shield and hanging structure of claim 1, wherein: the width of baffle from the top down is gradually big, and/or, baffle lateral surface top be equipped with the constant head tank that the jack is linked together.

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