CN218384841U - Capacitor wiring terminal - Google Patents

Abstract

The utility model provides a capacitor connecting terminal, belonging to the technical field of power electronic capacitors; it includes: the guide rod is respectively provided with a screw section, a cylindrical limiting section, a hexagonal boss section and a nut section, the diameters of the screw section, the cylindrical limiting section and the hexagonal boss section are sequentially increased from top to bottom, the base is sleeved on the cylindrical limiting section and the hexagonal boss section, the lower end face of the base is abutted to the upper end face of the nut section, the middle of the cover plate is an open area and is sleeved on the base through the open area, the cover plate and the base are in sealing fit, the sealing gasket is arranged between the cylindrical limiting section and the base, the sleeve is arranged on the screw section and the cylindrical limiting section, and the nut is arranged on the screw section and is positioned at the upper end inside the sleeve; whole device is through the nestification and the interlock between each part, does not have complicated spare part, and processing is simple, and convenient assembling effectively prevents to lead to binding post to rotate and become flexible because of electric power or mechanical oscillation and ensures that whole device can also keep multistage sealed under abominable service environment to and the safe operation of condenser.

Description

Capacitor wiring terminal

Technical Field

The utility model relates to an electronic equipment heat dissipation technology especially relates to a condenser binding post.

Background

At present, a part of dry self-healing power electronic capacitors are protected by pressure switches, the sealing integrity of welding seams of the capacitor box shell and connecting terminals is guaranteed to be intact in order to guarantee the reliable action of the pressure switches, the sealing performance of the welding seams of the capacitor box shell can be guaranteed to be good by argon arc welding, and all parts of the connecting terminals of the capacitor are sealed by sealing gaskets.

The capacitor wiring terminal on the market all adopts single-stage sealed mode at present, just that installs seal ring between the insulation support of wiring terminal and apron, and the leakproofness is relatively poor. In addition, in the process of live operation of the capacitor, the guide rod and the base of the wiring terminal, the base and the cover plate, and the base and the sleeve rotate due to the action of electric force and vibration of the installation environment, so that the wiring terminal is easy to loosen, and the safe operation of the capacitor is influenced.

Therefore, in order to solve the above technical problems, a terminal of a locking sealed capacitor is needed to realize multi-stage sealing and is not easy to loosen in a vibration environment.

SUMMERY OF THE UTILITY MODEL

In order to achieve the purpose, the utility model provides a capacitor connecting terminal, simple structure, convenient and practical, the effect is showing.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a capacitor terminal comprising:

the guide rod, the nut, the sleeve, the sealing washer, the cover plate and the base;

the guide arm from the top down is equipped with screw rod section, the spacing section of cylinder, hexagon boss section and the nut section that the diameter increases in proper order respectively, the pedestal cover in the spacing section of cylinder and on the hexagon boss section, the lower terminal surface of base with the up end butt of nut section, for opening the district and establish through opening the district cover in the middle of the apron on the base, and with be sealed laminating between the base, seal ring installs the spacing section of cylinder with between the base, and respectively with the spacing section of cylinder with base sealing connection, the bushing installation is in on screw rod section and the spacing section of cylinder, just sheathed tube lower extreme supports apron up end and with base sealing joint, the nut is installed in the screw rod section, and be located sheathed tube inside upper end, the nut is in the screw rod section rotates in order to promote the sleeve pipe to the apron with the base direction removes.

The utility model has the advantages that: the guide rod is used as a main body, the base, the cover plate, the sealing gaskets, the sleeve and the nut are sleeved on the guide rod from bottom to top step by step, extrusion force is provided for tightness of each part through nesting and occlusion of each part and rotation of the nut on the screw rod section, and the sealing gaskets between the cylindrical limiting section and the base can effectively improve the sealing performance of the capacitor wiring terminal; whole device does not have complicated spare part, and processing is simple, and convenient assembling through the mutual interlock of assembly back between each part, effectively prevents to lead to binding post to rotate and become flexible because of electrodynamic force or mechanical vibration, ensures that whole device can also keep multistage sealed under abominable service environment to and the safe operation of condenser.

On the basis of the technical proposal, the utility model can be improved as follows,

furthermore, be equipped with first circular recess in the nut section up end, install first O type seal ring in the first circular recess, first O type seal ring respectively with nut section up end and terminal surface butt under the base.

The beneficial effect of adopting the further scheme is that: first circular recess and first O type seal ring in the nut section up end and base under the terminal surface butt, under the extrusion force that the nut provided, can realize the high-efficient sealed between nut section and the base.

Further, the terminal surface is equipped with interior hexagon mounting hole under the base, is equipped with cavity hexagon boss in the middle of the up end, interior hexagon mounting hole cover is established on the hexagon boss section, the inboard open area of apron is hexagonal shape and joint and is in the cavity hexagon boss outside, seal ring cover is established on the spacing section of cylinder, and the joint is in the inboard of cavity hexagon boss, the outside district of base up end is equipped with the circular recess of second, install second O type seal ring in the circular recess of second, the base up end passes through the circular recess of second with second O type seal ring with terminal surface is connected under the apron, cavity hexagon boss upper end still is equipped with hexagon joint groove, hexagon joint groove joint the sleeve pipe.

The beneficial effect of adopting the further scheme is that: the base is nested and clamped with the hexagonal boss section of the guide rod through the inner hexagonal mounting hole, the cover plate is matched and clamped with the hollow hexagonal boss through the middle open area, and the sealing washer is sleeved between the inner side of the hollow hexagonal boss and the cylindrical limiting section of the guide rod through the sealing washer, so that the occlusion force and the sealing performance between connecting parts are improved; simultaneously, the outer side of the upper end face of the base further improves the sealing performance of the capacitor wiring terminal through the second circular groove and the second O-shaped sealing washer, and the wiring terminal is prevented from being in a hole.

Further, the inside upper end of sleeve pipe is equipped with the cylinder hole, and the lower extreme is equipped with trepanning and hexagon mounting hole, just the hexagon mounting hole is located the trepanning outside, the trepanning with seal ring joint each other, the hexagon mounting hole with hexagon joint groove joint each other, install in the cylinder hole the nut, terminal surface under the sleeve pipe hexagon mounting hole outside district is equipped with third circular recess, install third O type seal ring in the third circular recess, the terminal surface passes through under the sleeve pipe third circular recess with third O type seal ring with the apron up end is connected.

The beneficial effect of adopting the above further scheme is: through the mutual joint in hexagon mounting hole and hexagon joint groove, ensure the cooperation joint between sleeve pipe and the base, trepanning and the mutual joint of seal ring, ensure sealed between sleeve pipe and the seal ring, the nut with screw rod section screw thread joint in the cylinder hole, under the nut rotates, the extrusion sleeve pipe is close to the base, and then improve sealing connection between the two, third circular recess and third O type seal ring simultaneously, the sealing performance between apron and the sleeve pipe has further been improved, prevent the hole from appearing between the two.

Further, the sleeve is made of a rubber insulating material, and the outer side wall of the sleeve is of a circular ring tooth-shaped structure.

The beneficial effect of adopting the above further scheme is: the rubber insulating material provides flexibility and ensures efficient operation of all parts in the capacitor, and meanwhile, the annular tooth-shaped structure is favorable for sealing the whole wiring terminal in the capacitor.

Further, the screw section is of an M16 copper screw structure, and the nut is an M16 copper nut.

The beneficial effect of adopting the further scheme is that: the screw rod section and the nut are both M16 and can be matched with each other, so that the connectivity is improved.

Further, the outer diameter of the cover plate is larger than that of the base.

The beneficial effect of adopting the further scheme is that: the protection effect of the cover plate on the whole device is improved.

Furthermore, the upper end of the nut is provided with a plurality of counter bores which are matched with the inner corner wrench.

The beneficial effect of adopting the further scheme is that: the inner angle end wrench is convenient to fasten.

Drawings

FIG. 1 is a schematic structural section of the present invention;

fig. 2 is a schematic sectional view of the guide bar structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a guide bar; 11. a screw section; 12. a cylindrical limiting section; 13. a hexagonal boss section; 14. a nut segment; 2. a nut; 3. a sleeve; 31. a cylindrical bore; 32. trepanning; 33. a hexagonal mounting hole; 4. a sealing gasket; 5. a cover plate; 6. a base; 7. a first O-ring seal; 8. a second O-ring seal; 9. a third O-ring seal.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following detailed description of the present invention with reference to the accompanying drawings is not intended to limit the scope of the present invention.

Example 1: as shown in fig. 1-2, the utility model discloses an embodiment of capacitor connecting terminal, include:

the device comprises a guide rod 1, a nut 2, a sleeve 3, a sealing washer 4, a cover plate 5 and a base 6;

guide arm 1 is equipped with the screw rod section 11 that the diameter increases in proper order respectively from the top down, the spacing section 12 of cylinder, hexagon boss section 13 and nut section 14, base 6 cover is on spacing section 12 of cylinder and hexagon boss section 13, the lower terminal surface of base 6 and the up end butt of nut section 14, for opening the district and establish on base 6 through opening the district cover in the middle of the apron 5, and be sealed laminating between 6 with the base, seal ring 4 installs between spacing section 12 of cylinder and base 6, and respectively with spacing section 12 of cylinder and 6 sealing connection of base, sleeve 3 installs on screw rod section 11 and the spacing section 12 of cylinder, and sleeve 3's lower extreme supports apron 5 up end and 6 sealing joint with the base, nut 2 installs on screw rod section 11, and be located sleeve 3's inside upper end, nut 2 rotates in screw rod section 11 in order to promote sleeve 3 to apron 5 and 6 directions removal of base.

Specifically, guide arm 1 is by screw rod section 11 that increases in proper order for the diameter from the top down, spacing section 12 of cylinder, hexagon boss section 13 and nut section 14 are constituteed, wherein 6 covers of base are established on hexagon boss section 13, 5 covers of apron are established on base 6, seal ring 4 installs between spacing section 12 of cylinder and base 6, 3 covers of sleeve pipe are established on screw rod section 11 and the spacing section 12 of cylinder, and the lower extreme supports the joint with apron 5 and base 6, nut 2 installs at screw rod section 11 and is located sleeve pipe 3's inside upper end, and provide the extrusion force for each part.

It should be understood, use guide arm 1 as the main part, rethread base 6, apron 5, seal ring 4, the mutual joint effect of sleeve pipe 3 and nut 2, wherein nut 2 provides the extrusion force for the compactness of each part in the downward rotation on screw rod section 11, whole device realizes assembling back interlock each other between each part, ensure holistic leakproofness and obtain the guarantee, effectively prevent to lead to binding post to rotate and become flexible because of electric power or mechanical vibration and prevent that condenser binding post from rotating and becoming flexible, ensure that whole device can also keep multistage sealed under abominable service environment, and the safe operation of condenser.

On the basis of example 1, example 2: as shown in fig. 1-2, a first circular groove is formed in the upper end surface of the nut segment 14, a first O-ring seal 7 is installed in the first circular groove, and the first O-ring seal 7 is respectively abutted against the upper end surface of the nut segment 14 and the lower end surface of the base 6.

It will be appreciated that the first O-ring seal 7, when the nut 2 is screwed down and the base 6 is pressed against the nut segment 14, achieves an efficient seal between the nut segment 14 and the base 6.

On the basis of example 1, example 3: as shown in fig. 1, the terminal surface is equipped with interior hexagon mounting hole under the base 6, be equipped with cavity hexagon boss in the middle of the up end, interior hexagon mounting hole cover is established on hexagon boss section 13, 5 inboard open areas of apron are hexagonal shape and joint in the cavity hexagon boss outside, seal ring 4 covers is established on spacing section 12 of cylinder, and the joint is in the inboard of cavity hexagon boss, the outside district of 6 up end of base is equipped with the circular recess of second, install second O type seal ring 8 in the circular recess of second, 6 up end of base is connected with the terminal surface under the apron 5 through the circular recess of second and second O type seal ring 8, cavity hexagon boss upper end still is equipped with hexagon joint groove, hexagon joint groove joint sleeve pipe 3.

Specifically, an inner hexagonal mounting hole is formed in the lower end face of the base 6, a hollow hexagonal boss is arranged in the middle of the upper end face, a second circular groove is formed in the outer side of the upper end face, and a hexagonal clamping groove is formed in the upper end of the hollow hexagonal boss; wherein apron 5 joint is on cavity hexagon boss, and seal ring 4 is in the space between spacing section 12 of cylinder and the cavity hexagon boss, and 3 lower extreme joints of sleeve pipe are in hexagon joint groove, and second O type seal ring 8 is installed in the circular recess of second and hugs closely apron 5 lower extreme terminal surface, and 2 twist off second O type seal ring 8 at the nut and can realize apron 5 and 6 sealing connection of base.

It should be understood that seal ring 4 improves the leakproofness between spacing section 12 of cylinder and the base 6, second O type seal ring 8 improves apron 5 and the leakproofness of base 6, hexagonal joint groove improves the interlock nature between sleeve pipe 3 and the base 6, increase fastening nature between them, cavity hexagon boss improves the joint nestability of apron 5 and base 6, it is inseparable to keep connecting, whole device has further improved condenser binding post sealing performance through nested interlock, prevent that binding post from appearing the hole, effectively prevent simultaneously because of electric power or mechanical oscillation lead to binding post to rotate and become flexible.

Preferably, the cover plate 5 is an outer wall of the capacitor, and when the connecting terminal is installed, the device is installed on each outer wall, and then the outer walls are welded to each other to form a closed space.

On the basis of example 3, example 4: as shown in fig. 1, the inside upper end of sleeve pipe 3 is equipped with cylinder hole 31, the lower extreme is equipped with trepanning 32 and hexagon mounting hole 33, and hexagon mounting hole 33 is located the trepanning 32 outside, trepanning 32 and the mutual joint of seal ring 4, hexagon mounting hole 33 and the mutual joint of hexagon joint groove, install nut 2 in the cylinder hole 31, the hexagon mounting hole 33 outside district of terminal surface still is equipped with the third circular recess under the sleeve pipe 3, install third O type seal ring 9 in the third circular recess, the terminal surface passes through third circular recess and third O type seal ring 9 and is connected with apron 5 up end under the sleeve pipe 3.

Specifically, be used for the cover in the cylinder hole 31 to establish nut 2, trepanning 32 is used for with seal ring 4 joint, hexagon mounting hole 33 be used for with the mutual joint in hexagon joint groove ensure the compactness of sleeve pipe 3 and base 6, third circular recess through the sealed connection of installation third O type seal ring 9 realization and apron 5 up end.

It will be appreciated that the nut 2, under the downward pressing force provided by the cylindrical hole 31, helps the sleeve 3 to approach and press against the cover plate 5 and the base 6, achieving integral stability of the overall structure, and the third O-ring seal 9 helps to achieve sealing between the sleeve 3 and the cover plate 5; the whole device improves the sealing performance and effectively prevents the terminal from rotating and loosening caused by electric power or mechanical vibration through the sealing washer 4 and the plurality of O-shaped sealing washers; a multistage sealing of the entire capacitor terminal is achieved overall by the sealing gasket 4 and the plurality of O-ring gaskets.

Example 5 on the basis of example 4: as shown in fig. 1, the sleeve 3 is made of rubber insulating material, and the outer side wall of the sleeve 3 is in a circular tooth-shaped structure.

It will be appreciated that the rubber insulation provides flexibility while also ensuring efficient operation of the components within the capacitor, while the annular teeth facilitate sealing of the entire terminal within the capacitor.

Example 6 on the basis of example 1: as shown in FIG. 1, the screw section 11 is of an M16 copper screw structure, and the nut 2 is of an M16 copper nut

It will be appreciated that the screw section 11 and the nut 2 cooperate with each other, and that the size M16 is just sufficient for the use scenario of the present device.

Example 7 on the basis of example 1: as shown in fig. 1, the outer diameter of the cover plate 5 is larger than that of the base 6.

It will be appreciated that the protection of the entire device is achieved by the greater protection and shielding of the cover plate 5.

On the basis of example 1, example 8: as shown in fig. 1, the upper end of the nut 2 is provided with a plurality of counter bores for matching with an inner angle wrench.

It will be appreciated that the device fastening by means of an inside angle wrench is facilitated.

Preferably, the nut 2 is tightened within the cylindrical bore 31 of the sleeve 3, flush with or slightly above the top of the sleeve 3.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (8)

1. A capacitor terminal, comprising:

the device comprises a guide rod (1), a nut (2), a sleeve (3), a sealing washer (4), a cover plate (5) and a base (6);

guide arm (1) from the top down is equipped with screw rod section (11), the spacing section of cylinder (12), hexagon boss section (13) and nut section (14) that the diameter increases in proper order respectively, base (6) cover at the spacing section of cylinder (12) and on hexagon boss section (13), the lower terminal surface of base (6) with the up end butt of nut section (14), establish for opening the district and through opening the district cover in the middle of apron (5) on base (6), and with be sealed laminating between base (6), seal ring (4) are installed the spacing section of cylinder (12) with between base (6), and respectively with spacing section of cylinder (12) with base (6) sealing connection, install sleeve pipe (3) screw rod section (11) and the spacing section of cylinder (12), just the lower extreme of sleeve pipe (3) supports apron (5) up end and with base (6) sealed joint, install nut (2) screw rod section (11) and the nut section (3) are located the cover pipe (11) and the nut section (3) are in the direction of removal screw rod section (11) and the base (6) are in the direction to the base (6) top promotes nut (11).

2. The capacitor connecting terminal according to claim 1, characterized in that a first circular groove is arranged in the upper end face of the nut segment (14), a first O-shaped sealing gasket (7) is arranged in the first circular groove, and the first O-shaped sealing gasket (7) is respectively abutted against the upper end face of the nut segment (14) and the lower end face of the base (6).

3. The capacitor wiring terminal as claimed in claim 1, wherein an inner hexagonal mounting hole is formed in the lower end face of the base (6), a hollow hexagonal boss is arranged in the middle of the upper end face, the inner hexagonal mounting hole is sleeved on the hexagonal boss section (13), an open area in the inner side of the cover plate (5) is hexagonal and is clamped outside the hollow hexagonal boss, the cylindrical limiting section (12) is sleeved with the sealing washer (4) and is clamped inside the hollow hexagonal boss, a second circular groove is formed in the outer side area of the upper end face of the base (6), a second O-shaped sealing washer (8) is installed in the second circular groove, the upper end face of the base (6) is connected with the lower end face of the cover plate (5) through the second circular groove and the second O-shaped sealing washer (8), a hexagonal clamping groove is further formed in the upper end of the hollow hexagonal boss, and the hexagonal clamping groove is clamped with the sleeve (3).

4. The capacitor wiring terminal according to claim 3, wherein a cylindrical hole (31) is formed in the upper end of the interior of the sleeve (3), a sleeve hole (32) and a hexagonal mounting hole (33) are formed in the lower end of the sleeve, the hexagonal mounting hole (33) is located on the outer side of the sleeve hole (32), the sleeve hole (32) and the sealing gasket (4) are clamped with each other, the hexagonal mounting hole (33) and the hexagonal clamping groove are clamped with each other, the nut (2) is mounted in the cylindrical hole (31), a third circular groove is further formed in the outer side area of the hexagonal mounting hole (33) of the lower end face of the sleeve (3), a third O-shaped sealing gasket (9) is mounted in the third circular groove, and the lower end face of the sleeve (3) is connected with the upper end face of the cover plate (5) through the third circular groove and the third O-shaped sealing gasket (9).

5. The capacitor connecting terminal according to claim 4, characterized in that the sleeve (3) is made of rubber insulating material, and the outer side wall of the sleeve (3) is in a circular ring tooth-shaped structure.

6. The capacitor connection terminal according to claim 1, characterized in that the screw section (11) is an M16 copper screw structure and the nut (2) is an M16 copper nut.

7. Capacitor connection terminal according to claim 1, characterized in that the outer diameter of the cover plate (5) is larger than the outer diameter of the base plate (6).

8. The capacitor connecting terminal according to claim 1, characterized in that the upper end of the nut (2) is provided with a plurality of counter bores for matching with an inner angle wrench.

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