CN218037137U

CN218037137U - Aging jig for opening of aluminum electrolytic capacitor

Info

Publication number: CN218037137U
Application number: CN202222216280.2U
Authority: CN
Inventors: 尹志华; 李良; 尹超
Original assignee: Shenzhen Jianghao Electron Co ltd
Current assignee: Shenzhen Jianghao Electron Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-12-13
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses an aging jig for an opening of an aluminum electrolytic capacitor, which comprises a stud, a gland nut arranged at one end of the stud, a tensioning silica gel sleeve sleeved at the other end of the stud and a stainless steel ball arranged in the gland nut; the stud is provided with a through hole penetrating through the central axis of the stud; the compression nut is in a long-strip columnar shape, the compression nut penetrates through a central axis and is provided with two holes with different apertures, a round table is formed at the joint of the two holes, a sealing gasket is arranged on the round table, a round hole is formed in the middle of the sealing gasket, and the round hole, the two holes of the compression nut and the through hole of the stud are positioned on the same central axis; the stainless steel balls are placed on the sealing gasket and block the round holes of the sealing gasket under the action of gravity; the utility model discloses one-way exhaust is obvious with the isolation effect when the ageing tool of aluminum electrolytic capacitor opening is explosion-proof ageing, and the cost is low to be applicable to the ageing of multiple application scene.

Description

Aging jig for opening of aluminum electrolytic capacitor

Technical Field

The utility model belongs to the technical field of the ageing test of condenser, especially, relate to an ageing tool of aluminum electrolytic capacitor opening.

Background

The capacitor has a function of storing electric energy and instantly discharging the electric energy, and is an indispensable electronic component in the fields of electronics and power. The capacitor is widely applied to circuits such as power supply filtering, signal coupling, resonance, direct current isolation and the like, makes a contribution to the rapid development of modern electronic technology that the capacitor cannot be worn out, is also widely applied to electronic equipment such as household electrical appliances and computers, and is an irreplaceable electronic component in the electrical and electronic industries. With the development of the industry, the performance requirements of various circuits or applications on the capacitor are higher and higher, and the improvement of the aging test efficiency of the capacitor is of great help to the performance and the quality of the capacitor.

The aluminum electrolytic capacitor generally comprises an anode foil, a cathode foil, electrolyte, electrolytic paper, an electrode lead-out current collector, a can sealing shell, a cover plate and a cover plate pressure release valve. The specific production process of the aluminum electrolytic capacitor comprises the following steps: firstly, the anode foil, the cathode foil and the electrolytic paper are laminated and wound into a battery cell, and the electrode current collector and the electrode foil are exposed out of one end or two ends of the battery cell in a low-impedance switching tap mode in the winding process. And then, after the prefabricated battery core is subjected to high-temperature moisture removal, electrolyte is injected into the prefabricated battery core in a vacuum siphon mode at high temperature, and then the electrolyte is further injected into the prefabricated battery core in a saturated mode from vacuum to high air pressure, so that the electricity storage battery core with the initial electricity storage capacity is formed. And further, the battery cell and the packaging cover plate are transferred out of the positive electrode and the negative electrode in a low impedance mode to the tin soldering terminal, and then the battery cell and the packaging cover plate are sent into the metal shell to be pressed and fixed to be subjected to high-reliability air-tight can sealing. And finally, energizing, charging and aging the capacitor and removing defective products, wherein the aging process of the capacitor is to perform dielectric film oxide layer generation and electrochemical high-temperature repair on the exposed parts of the anode material, the current collector and the internal adapter terminal of the can package, however, in the generation and repair process of the dielectric film, due to the electrochemical mode, a certain amount of reactive gas or solvent high-temperature steam is not generated, the gases are confined in the can package shell, certain hidden dangers are generated, and the reactive gases such as hydrogen, ammonia, ozone and the like have great influence on the electric storage stability of the battery cell.

The above background disclosure is only for the purpose of assisting understanding of the inventive concepts and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above contents are disclosed at the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ageing tool of aluminum electrolytic capacitor opening to solve at least one kind among the above-mentioned background art problem.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

an aluminum electrolytic capacitor opening aging jig comprises a stud, a compression nut arranged at one end of the stud, a tensioning silica gel sleeve sleeved at the other end of the stud and a stainless steel ball arranged in the compression nut; the stud is provided with a through hole penetrating through the central axis of the stud; the compression nut is in a long-strip columnar shape, the compression nut penetrates through a central axis and is provided with two holes with different apertures, a round table is formed at the joint of the two holes, a sealing gasket is arranged on the round table, a round hole is formed in the middle of the sealing gasket, and the round hole, the two holes of the compression nut and the through hole of the stud are positioned on the same central axis; the stainless steel balls are placed on the sealing gasket and block the round holes of the sealing gasket under the action of gravity.

In some embodiments, one end of the stud is provided with an external thread, the other end of the stud is a cylinder with a smooth surface, and the tail end of the cylinder is provided with an annular stop part.

In some embodiments, the large hole with a large aperture on the compression nut is arranged at the tail end of the compression nut, and the inner wall of the small hole with a small aperture is provided with an internal thread matched with the external thread of the stud.

In some embodiments, a spring washer is further mounted on the stud and disposed between the compression nut and the tensioning silicone sleeve.

In some embodiments, the large bore of the compression nut has a bore diameter smaller than the diameter of the stainless steel ball.

In some embodiments, the diameter of the stainless steel ball is larger than the diameter of the circular hole of the sealing gasket.

In some embodiments, the depth of the large pores is less than the depth of the small pores.

In some embodiments, the stud is stainless steel.

In some embodiments, the compression nut is a hexagonal prism.

The utility model discloses technical scheme's beneficial effect is:

compared with the prior art, the utility model discloses one-way exhaust is obvious with the isolation effect when the ageing tool of aluminum electrolytic capacitor opening is explosion-proof ageing, and the cost is low to be applicable to the ageing of multiple application scene.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of an aluminum electrolytic capacitor opening aging jig according to an embodiment of the present invention;

fig. 2 is another schematic view of an aluminum electrolytic capacitor opening aging jig according to an embodiment of the present invention;

FIG. 3 is a schematic sectional view of an aging jig for an aluminum electrolytic capacitor opening according to an embodiment of the present invention;

FIG. 4 is an exploded view of an aluminum electrolytic capacitor opening aging jig according to an embodiment of the present invention;

fig. 5 is a partially exploded view of an aluminum electrolytic capacitor opening aging jig according to an embodiment of the present invention;

fig. 6 is a schematic view of the aluminum electrolytic capacitor opening aging jig of an embodiment of the present invention cooperating with a cover plate;

fig. 7 is a schematic view of an aluminum electrolytic capacitor opening aging jig according to an embodiment of the present invention applied to an aluminum electrolytic capacitor.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the embodiments of the present invention more clearly understood, the technical solutions in the embodiments of the present invention can be better understood by those skilled in the art, and the drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The connection may be for fixation or for circuit connection.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings to facilitate description of the embodiments of the invention and to simplify description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular manner of operation, and are not to be construed as limiting the 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 one or more of that feature. In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, "plurality" means two or more, and the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as fixed connections, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1 to 5, an aging jig 100 for an aluminum electrolytic capacitor opening according to an embodiment of the present invention includes a stud 10, a gland nut 20 installed at one end of the stud 10, a tensioning silica gel sleeve 30 sleeved at the other end of the stud 10, and a stainless steel ball 40 disposed in the gland nut 20; the stud 10 is provided with a through hole 101 penetrating through the central axis of the stud, one end of the stud 10 is provided with an external thread 102, the other end of the stud 10 is a cylinder 103 with a smooth surface, and the tail end of the cylinder is provided with an annular stopping part 104; the compression nut 20 is in a long columnar shape, two holes with different apertures are formed in the central axis of the compression nut 20, a large hole 201 with a large aperture is formed in the tail end of the compression nut, and an internal thread 203 matched with the external thread 102 of the stud 10 is formed in the inner wall of a small hole 202 with a small aperture; the joint of the large hole 201 and the small hole 202 forms a circular truncated cone 204, a sealing gasket 50 is arranged on the circular truncated cone, a circular hole 501 is arranged in the middle of the sealing gasket 50, and the circular hole 501, the large hole 201 and the small hole 202 of the compression nut 20 and the through hole 101 of the stud 10 are positioned on the same central axis; the stainless steel ball 40 is placed on the sealing gasket 50, and the round hole 501 of the sealing gasket 50 is blocked under the action of gravity.

In some embodiments, a spring washer 105 is further mounted on the stud 10, and the spring washer 105 is disposed between the compression nut 20 and the tension silicone sleeve 30. In some embodiments, the compression nut 20 is a hexagonal prism.

Specifically, the aperture of the large hole of the gland nut 20 is smaller than the diameter of the stainless steel ball 40, the diameter of the stainless steel ball 40 is larger than the aperture of the circular hole 501 of the sealing gasket 50, and when the stainless steel ball 40 is placed in the large hole 201, the stainless steel ball 40 blocks the circular hole 501 of the sealing gasket 50 under the action of gravity. In some embodiments, the depth of the large holes 201 is less than the depth of the small holes 202 to increase sealing performance.

In some embodiments, the stud 10 is made of stainless steel, which can prevent corrosion from electrolytes or other gases.

Referring to fig. 6 and 7, when the aluminum electrolytic capacitor is aged, the opening aging jig 100 is installed at an explosion-proof valve installation hole of the capacitor cover plate 60, gas generated during aging and charging of the capacitor 70 is exhausted through the through hole 101 of the stud 10 and through the round hole 501 of the sealing gasket 50 on the gland nut 20 by punching against the stainless steel ball 40, and after the gas generated during aging and charging inside the capacitor 70 is exhausted, the stainless steel ball 40 seals the round hole 501 of the sealing gasket 50 under the action of gravity, so that substances such as moisture and salt in external natural air, which pollute the battery cell, are prevented from entering the battery cell from the through hole; meanwhile, the explosion-proof valve mounting hole is sealed by the tensioning silica gel sleeve 30 and the spring gasket 105, and substances such as moisture and salt in the external natural air and the like which pollute the battery cell are difficult to contact the battery cell. And after the charging aging is finished, removing the opening aging jig in the inert gas glove box, and installing an external explosion-proof silica gel valve or a foil type explosion-proof valve on an explosion-proof valve installation hole.

The embodiment of the utility model provides an ageing tool of opening's exhaust and isolation effect obvious, the cost is low, be applicable to the ageing, the ageing and electrochemistry energy storage field of lithium cell of super capacitor, the range of application is wide. The stud of the jig is made of stainless steel, is corrosion-resistant and is not easy to generate chemical reaction with electrolyte.

It is to be understood that the foregoing is a more detailed description of the invention, and specific embodiments thereof are described in conjunction with the detailed description, which is not intended to limit the invention to the particular forms disclosed. For those skilled in the art to which the invention pertains, several alternatives or modifications can be made to the described embodiments without departing from the inventive concept, and these alternatives or modifications should be construed as belonging to the scope of the present patent. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like, 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. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the invention as defined by the appended claims.

Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate, the above-described disclosures, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.

Claims

1. An aging jig for an opening of an aluminum electrolytic capacitor is characterized by comprising a stud, a compression nut arranged at one end of the stud, a tensioning silica gel sleeve sleeved at the other end of the stud and a stainless steel ball arranged in the compression nut; the stud is provided with a through hole penetrating through the central axis of the stud; the compression nut is in a long-strip columnar shape, the compression nut penetrates through a central axis and is provided with two holes with different apertures, a round table is formed at the joint of the two holes, a sealing gasket is arranged on the round table, a round hole is formed in the middle of the sealing gasket, and the round hole, the two holes of the compression nut and the through hole of the stud are positioned on the same central axis; the stainless steel balls are placed on the sealing gasket and block the round holes of the sealing gasket under the action of gravity.

2. The aluminum electrolytic capacitor opening aging jig of claim 1, characterized in that: one end of the stud is provided with external threads, the other end of the stud is a cylinder with a smooth surface, and the tail end of the cylinder is provided with an annular stopping part.

3. The aluminum electrolytic capacitor opening aging jig of claim 2, characterized in that: the big hole with big aperture on the gland nut is arranged at the tail end of the gland nut, and the inner wall of the small hole with small aperture is provided with an internal thread matched with the external thread of the stud.

4. The aluminum electrolytic capacitor opening aging jig of claim 3, characterized in that: and a spring gasket is further installed on the stud and arranged between the compression nut and the tensioning silica gel sleeve.

5. The aluminum electrolytic capacitor opening aging jig of claim 4, wherein: the aperture of a large hole of the compression nut is smaller than the diameter of the stainless steel ball.

6. The aluminum electrolytic capacitor opening aging jig of claim 5, wherein: the diameter of the stainless steel ball is larger than the aperture of the round hole of the sealing gasket.

7. The aluminum electrolytic capacitor opening aging jig of claim 6, wherein: the depth of the large holes is smaller than that of the small holes.

8. The aluminum electrolytic capacitor opening aging jig of claim 7, wherein: the stud is made of stainless steel.

9. The aluminum electrolytic capacitor opening aging jig of claim 8, wherein: the compression nut is a hexagonal prism.