CN220400413U

CN220400413U - Ballast machine capacitor

Info

Publication number: CN220400413U
Application number: CN202321943785.7U
Authority: CN
Inventors: 过金建; 陈廷永
Original assignee: Wuxi Electric Co ltd
Current assignee: Wuxi Electric Co ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2024-01-26
Anticipated expiration: 2033-07-21

Abstract

The utility model provides a lithotripter capacitor, which comprises a case shell; the periphery of the element is wrapped by wrapping paper and then is arranged in the case, and the bottom support of the element is arranged on the bottom of the inner side of the case; the lower electrode is embedded and arranged on the top of the element; the middle electrode is arranged at the top of the lower electrode through a countersunk bolt; the upper electrode is arranged on the outer side of the top of the box shell, and sequentially penetrates through the box shell, the middle electrode and the lower electrode through fastening bolts to form connection among the three electrodes; the wiring bolt is arranged on the upper electrode to form a wiring structure protruding out of the top of the upper electrode; the elements at the bottoms of the lower electrode, the middle electrode and the upper electrode are symmetrically arranged in front and back by taking the vertical central plane of the case shell as a pair, and respectively correspond to a low-voltage leading-out end and a high-voltage leading-out end. The utility model adopts a low inductance structure, can reduce the voltage rise time and the switching loss, improves the efficiency and the stability of a circuit, and improves the operation efficiency and the reliability of the stone crusher.

Description

Ballast machine capacitor

Technical Field

The utility model relates to the field of capacitors, in particular to the technical field of low inductance and capacitance, and specifically relates to a ballast machine capacitor.

Background

During operation of the lithotripter, fluctuations or abrupt changes in the supply voltage may occur. These voltage variations may cause damage to or improper operation of the motor, drive train, etc. components of the device, mainly in the following ways:

1 current ripple: the current response speed of the conventional capacitor is low, current cannot be absorbed and released in time, and when the stone crusher needs to suddenly increase the load, the capacitor cannot rapidly supply enough current, so that fluctuation of power supply current is caused, the stability of equipment can be affected, and the risk of faults or damage of mechanical equipment is increased.

2 temperature influence: the performance of conventional capacitors may vary at different temperatures. In the high temperature environment of a lithotripter, conventional capacitors may lose a portion of their capacity or other performance parameters due to elevated temperatures, affecting their current stability and overload capabilities.

3 harmonic suppression is poor: conventional capacitors have limited ability to filter harmonics. The motor of the lithotripter may generate harmonics and it is difficult for conventional capacitors to effectively filter out these harmonics. This may cause harmonics in the power supply to propagate to other devices, affecting their proper operation.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a lithotripter capacitor for solving the difficulties of the prior art.

To achieve the above and other related objects, the present utility model provides a lithotripter capacitor comprising:

a case shell;

the periphery of the element 11 is wrapped by wrapping paper 9 and then is arranged in the case, and the bottom support of the element 11 is arranged on the inner bottom of the case;

a lower electrode 8, said lower electrode 8 being embedded and arranged on top of the element 11;

a middle electrode 7, wherein the middle electrode 7 is arranged on the top of the lower electrode 8 through a countersunk bolt 12;

an upper electrode 5, wherein the upper electrode 5 is arranged outside the top of the case, and the upper electrode 5 sequentially passes through the case, the middle electrode 7 and the lower electrode 8 through a fastening bolt 6 to form connection

A connection bolt 4, wherein the connection bolt 4 is arranged on the upper electrode 5 to form a connection structure protruding out of the top of the upper electrode 5;

the elements 11 at the bottoms of the lower electrode 8, the middle electrode 7 and the upper electrode 5 are symmetrically arranged in front and back by taking the vertical central plane of the box shell as a pair, and respectively correspond to a low-voltage leading-out end and a high-voltage leading-out end.

According to a preferred embodiment, the housing is made of plastic.

According to a preferred scheme, the box shell comprises an upper box shell 2 and a lower box shell 10, wherein the upper box shell 2 is mounted on the lower box shell 10 through a first screw 1;

the upper case 2 is arranged in an H-shape in a top view, has a downward opening, and comprises a vertical end 21 at the left and right sides and a horizontal end 22 connected with the vertical end 21, and an L-shaped groove 23 is formed at the two sides perpendicular to the horizontal end 22 to accommodate the upper electrode 5;

the lower case 10 has an opening at the top, a cavity for accommodating the element 11 is formed therein, and support rods 101 extending into the upper case 2 are formed at both sides of the top.

According to a preferred embodiment, a cavity structure is formed in the vertical end 21 of the upper casing 2 for receiving the support rod 101.

According to the preferred scheme, the bottom of the upper electrode 5 is closely attached to the upper surface of the L-shaped groove 23, the top of the middle electrode 7 is closely attached to the lower surface of the L-shaped groove 23, and the lower electrode 8 and the middle electrode 7 are tightly connected.

According to a preferred embodiment, a first screw is inserted from the top of the vertical end 21 of the upper casing 2 and fastened to the support rod 101 to form a connection between the upper casing 2 and the lower casing 10.

According to a preferred embodiment, the first screw 1 is an oil-sealed screw.

According to the preferred scheme, the upper case 2 is internally provided with a series lining paper 3 on the vertical central plane, and one end of the top of the series lining paper 3 extends into the horizontal end 22 of the upper case 2.

According to a preferred embodiment, a pair of the connection bolts 4 are arranged in the L-shaped groove 23 on one side of the upper case 2, and the connection bolts 4 are symmetrically distributed with the fastening bolt 6 in the middle as a symmetrical axis.

According to a preferred scheme, three fastening bolts 6 are arranged in L-shaped grooves 23 on one side of the upper case 2, a pair of the fastening bolts 4 are arranged at intervals, and the top of each fastening bolt 6 is not more than the upper electrode 5 after being installed.

According to a preferred embodiment, the upper electrode 5, the middle electrode 7 and the lower electrode 8 are coaxially arranged between each side of the upper casing 2.

The utility model adopts a low inductance structure, can reduce the voltage rise time and the switching loss, improves the efficiency and the stability of a circuit, and improves the operation efficiency and the reliability of the stone crusher.

Preferred embodiments for carrying out the present utility model will be described in more detail below with reference to the attached drawings so that the features and advantages of the present utility model can be easily understood.

Drawings

FIG. 1 shows a front view of the present utility model;

FIG. 2 shows a cross-sectional view of the present utility model;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

FIG. 4 shows a top view of the present utility model;

description of the reference numerals

1. A first screw; 2. the upper box shell, 21, the vertical end, 22, the horizontal end, 23 and the L-shaped groove; 3. a series lining paper; 4. a wiring bolt; 5. an upper electrode; 6. a fastening bolt; 7. a middle electrode; 8. a lower electrode; 9. an encapsulation paper; 10. a lower case, 101, support bars; 11. an encapsulation paper; 12. countersunk bolts.

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Possible embodiments within the scope of the utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The utility model provides a lithotripter capacitor which is used in lithotripter equipment, the type of a use scene is not limited, but the structure of the lithotripter capacitor is particularly suitable for the requirement of low inductance when the lithotripter works so as to ensure the use efficiency and the service life of the lithotripter.

In general, the lithotripter vessel proposed by the present utility model mainly comprises a casing, an element 11, a lower electrode 8, a middle electrode 7, an upper electrode 5 and a junction bolt 4. Among them, reference can be made to fig. 1, which shows the arrangement of the case, the element 11, the lower electrode 8, the middle electrode 7, the upper electrode 5 and the terminal bolt 4.

The operation efficiency and the reliability of the stone crusher are improved, and the low-inductance capacitor is more suitable to select, so that in the capacitor structure provided by the embodiment, the low-inductance structure is adopted, the voltage rise time and the switching loss can be reduced, the efficiency and the stability of a circuit are improved, specifically, as shown in fig. 1, the element 11 which is installed in the box shell and is wrapped by wrapping paper 9 is arranged around, and the top of the element 11 is in a compression joint structure of an inner electrode plate and an outer electrode plate, so that the purpose of high-voltage extraction is realized.

As described above, the housing can achieve both the mounting of the accommodating element 11 and the purpose of leading out high voltage, and for this purpose, the housing is structured to have the upper housing 2 and the lower housing 10, and all of them are made of plastic material, forming an external insulation structure.

As shown in fig. 1 and 4, the case 2 is H-shaped from a top view, and includes vertical ends 21 on the left and right sides and a horizontal end 22 connected to the vertical ends 21, the structure of the upper case 2 is opened downward, the corresponding lower case 10 is opened at the top, a cavity for accommodating the element 11 is formed inside, and support rods 101 extending into the vertical ends 21 of the upper case 2 are formed on both sides of the top toward the top, so that a cavity structure for accommodating the support rods 101 is formed in the vertical ends 21 of the upper case 2.

When the two are in butt joint, a first screw is inserted and fastened on the supporting rod 101 from the top of the vertical end 21 of the upper case 2 to form the connection between the upper case 2 and the lower case 10, so as to avoid the vertical separation of the plastic cases in the use process, or to avoid the manual breaking and disassembly, and the first screw 1 adopts an oil seal screw.

In order to reduce the inductance value, the structure of leading out the direct lead screw in the prior art adopts a mode of leading out high voltage by pressing an inner electrode and an outer electrode, and provides a structure of a lower electrode 8, a middle electrode 7 and an upper electrode 5, wherein the upper electrode 5 is arranged on the outer side of the top of the box shell, for this purpose, an L-shaped groove 23 is formed on two sides perpendicular to the horizontal end 22 to accommodate the upper electrode 5, so that the upper electrode 5 can be placed horizontally and stably, further, the space between the lower electrode 8, the middle electrode 7 and the upper electrode 5 can be reduced, and the rest of the horizontal end 22 is used for facilitating the carrying.

It should be specifically noted that the lower electrode 8 is embedded in the top of the element 11, the middle electrode 7 is mounted on the top of the lower electrode 8 through the countersunk bolt 12, the lower electrode 8 and the middle electrode 7 are both located in the lower case 10, the upper electrode 5 is located in the upper case 2, the upper electrode 5 sequentially passes through the case, the middle electrode 7 and the lower electrode 8 through the fastening bolt 6 to form connection between the three, the wiring bolt 4 is mounted on the upper electrode 5 to form a wiring structure protruding out of the top of the upper electrode 5, the bottom of the upper electrode 5 is tightly attached to the upper surface of the L-shaped groove 23 during mounting, the top of the middle electrode 7 is tightly attached to the lower surface of the L-shaped groove 23, and the lower electrode 8 and the middle electrode 7 are tightly connected to form a direct crimping structure of the three, so that the required distance is shortened, and connection and mounting between the three are also facilitated.

On the basis, the elements 11 at the bottoms of the lower electrode 8, the middle electrode 7 and the upper electrode 5, which correspond to the bottoms, are symmetrically arranged in front and back by taking the vertical central plane of the box shell as a pair, and respectively correspond to the low-voltage leading-out end and the high-voltage leading-out end; in order to make the low inductance capacitor have the characteristics of high response speed, good stability, stable temperature and the like, in addition, the improvement is made in the following aspects that, on one hand, a pair of connecting bolts 4 are arranged in an L-shaped groove 23 on one side of an upper case 2, a pair of connecting bolts 4 are symmetrically distributed by taking a fastening bolt 6 positioned in the middle as a symmetrical axis, three corresponding fastening bolts 6 are arranged in an L-shaped groove 23 on one side of the upper case 2, a pair of connecting bolts 4 are arranged at a reference interval, and the top of each fastening bolt 6 is not more than an upper electrode 5 after being installed; on the other hand, the elements 11 of the bottoms of the lower electrode 8, the middle electrode 7 and the upper electrode 5 are symmetrically arranged in front and back by taking the vertical central plane of the case, for this purpose, the serial lining paper 3 is arranged on the vertical central plane in the upper case 2, and one end of the top of the serial lining paper 3 extends into the horizontal end 22 of the upper case 2 to be arranged; in addition, the upper electrode 5, the middle electrode 7 and the lower electrode 8 on each side of the upper case 2 are required to be coaxially arranged, so that the effect of maximally reducing inductance is achieved, the power supply current can be more effectively stabilized, overload capacity is provided, voltage rise time and switching loss are reduced, and the efficiency and stability of the circuit are improved.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A lithotripter capacitor, comprising:

a case shell;

the periphery of the element (11) is wrapped by wrapping paper (9) and then is arranged in the box shell, and the bottom support of the element (11) is arranged on the bottom of the inner side of the box shell;

a lower electrode (8), the lower electrode (8) being embedded on top of the element (11);

the middle electrode (7) is arranged at the top of the lower electrode (8) through a countersunk bolt (12);

the upper electrode (5) is arranged on the outer side of the top of the box shell, and the upper electrode (5) sequentially penetrates through the box shell, the middle electrode (7) and the lower electrode (8) through a fastening bolt (6) to form connection;

the wiring bolt (4) is arranged on the upper electrode (5) to form a wiring structure protruding out of the top of the upper electrode (5);

the elements (11) at the bottoms of the lower electrode (8), the middle electrode (7) and the upper electrode (5) respectively correspond to a low-voltage leading-out end and a high-voltage leading-out end, and are symmetrically arranged in front of and behind the vertical central plane of the box shell.

2. The lithotripter capacitor of claim 1, wherein the housing comprises an upper housing (2) and a lower housing (10), the upper housing (2) being mounted on the lower housing (10) by a screw (1);

the upper case (2) is arranged in an H shape in overlook, is downward in opening, comprises vertical ends (21) at the left side and the right side and a horizontal end (22) connected with the vertical ends (21), and is provided with L-shaped grooves (23) for accommodating upper electrodes (5) at two sides perpendicular to the horizontal end (22);

the top of the lower case (10) is open, a cavity for accommodating the element (11) is formed in the lower case, and support rods (101) extending into the upper case (2) are formed on two sides of the top and extend upwards.

3. The lithotripter capacitor according to claim 2, wherein the bottom of the upper electrode (5) is closely attached to the upper surface of the L-shaped groove (23), the top of the middle electrode (7) is closely attached to the lower surface of the L-shaped groove (23), and the lower electrode (8) and the middle electrode (7) are tightly connected.

4. A lithotripter capacitor according to claim 3, wherein the first screw is inserted from the top of the vertical end (21) of the upper casing (2) and fastened to the support bar (101) to form a connection of the upper casing (2) and the lower casing (10).

5. The lithotripter capacitor according to claim 4, wherein a serial lining paper (3) is arranged in the upper case (2) and positioned on a vertical center plane, and one end of the top of the serial lining paper (3) extends into a horizontal end (22) of the upper case (2).

6. The lithotripter capacitor according to claim 5, wherein a pair of the connecting bolts (4) is arranged in an L-shaped groove (23) on one side of the upper case (2), and the connecting bolts (4) are symmetrically distributed with the fastening bolts (6) in the middle as symmetry axes.

7. The lithotripter capacitor of claim 6, wherein an upper electrode (5), a middle electrode (7) and a lower electrode (8) are coaxially arranged between each side of the upper casing (2).