Aluminum electrolytic capacitor with anti-seismic structure

Abstract

The utility model discloses an aluminum electrolytic capacitor with an anti-seismic structure, which comprises a capacitor main body and pins arranged on the capacitor main body, the capacitor main body is also provided with the anti-seismic structure, the anti-seismic structure comprises a positioning shell and a plurality of anti-seismic bodies arranged below the positioning shell, and each anti-seismic body comprises a lower extension table. A groove is formed in the lower end face of the lower extending table, an air bag and a foot pad fixedly connected to the lower end face of the air bag are arranged in the groove, the air bag is of a hollow cavity structure, the lower end face and the upper end face in a cavity of the positioning shell are both attached to the capacitor body, and therefore the positioning shell is fixed to the outer side of the capacitor body through the upper end and the lower end of the positioning shell. According to the aluminum electrolytic capacitor with the anti-seismic structure, through the design of the air bags and the foot pads, buffering can be carried out between the capacitor body and the PCB, the capacitor body is supported by the PCB, and therefore vibration of the capacitor body is reduced, the probability of damage of the capacitor body is greatly reduced, and the service life of the capacitor body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to an aluminum electrolytic capacitor, in particular to an aluminum electrolytic capacitor with an anti-vibration structure. BACKGROUND

[0002] An aluminum electrolytic capacitor is made of an aluminum cylinder as a negative electrode, with a liquid electrolyte inside and a piece of bent aluminum strip as a positive electrode. In actual use, the aluminum electrolytic capacitor also needs to be treated with a direct current voltage to form an oxide film on the positive electrode as a dielectric.

[0003] The existing aluminum electrolytic capacitor is usually directly exposed after being installed on a PCB, without any anti-vibration structure, which may affect the stability of the aluminum electrolytic capacitor and increase the probability of damage and shorten the service life if continuous micro-vibration occurs during operation. SUMMARY

[0004] The utility model discloses a kind of aluminum electrolytic capacitors with anti-vibration structure, by the design of air bag and foot pad, capacitor main body and PCB between it can be buffered, PCB is supported to capacitor main body, to reduce the vibration of capacitor main body, greatly reduce its damage probability, prolong service life.

[0005] To achieve the above object, the utility model provides the following technical scheme: an aluminum electrolytic capacitor with an anti-vibration structure, comprising a capacitor main body and a pin arranged on the capacitor main body, and an anti-vibration structure arranged on the capacitor main body, the anti-vibration structure comprising a positioning shell and a plurality of anti-vibration bodies arranged below the positioning shell, the anti-vibration body comprising a lower extension platform, a groove is arranged on the lower end surface of the lower extension platform, an air bag and a foot pad fixedly connected to the lower end surface of the air bag are arranged in the groove, and the air bag is a hollow cavity structure.

[0006] Preferably, the two pins are fixed to the lower end surface of the capacitor main body.

[0007] Preferably, the positioning shell is a cavity structure with openings at both ends and hollow inside.

[0008] Preferably, the lower end surface and the upper end surface inside the cavity of the positioning shell are attached to the capacitor main body; thereby the positioning shell is fixed to the outside of the capacitor main body by using the upper and lower ends of the positioning shell.

[0009] Preferably, the plurality of anti-vibration bodies are arranged on the circumference of the positioning shell.

[0010] Preferably, a plastic shell is also fixed in the groove, and the top of the air bag is fixed in the plastic shell.

[0011] Preferably, the atmospheric pressure value in the air bag is equal to the value of one standard atmospheric pressure.

[0012] Preferably, one end of the foot pad is located in the groove and is attached to the inner wall of the groove, and the other end of the foot pad extends out of the groove and is arranged below the lower extension platform.

[0013] Preferably, a gasket is fixed below the foot pad; the gasket is made of soft material such as rubber or silicone, and the gasket is in direct contact with the PCB, thereby playing a buffering role.

[0014] Compared with the prior art, the utility model has the advantages that the utility model discloses, a plurality of anti-vibration bodies are arranged at the end of the pin where the capacitor body is located, when the capacitor body has a certain frequency of micro-vibration, the design of the air bag and the foot pad on the anti-vibration body makes the capacitor body and the PCB can be buffered, the PCB supports the capacitor body, thereby reducing the vibration of the capacitor body, greatly reducing the probability of damage, and prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is one of the schematic diagrams of the utility model embodiment.

[0016] Figure 2 It is the second schematic diagram of the utility model embodiment.

[0017] Figure 3 It is one of the explosion diagrams of the utility model.

[0018] Figure 4 It is the second explosion diagram of the utility model.

[0019] Figure 5 It is the second explosion diagram of the utility model. Figure 1 It is the second explosion diagram of the utility model.

[0020] The reference signs and names in the drawing are as follows: 1, capacitor body; 2, pin; 3, anti-vibration structure; 31, positioning shell; 32, anti-vibration body; 321, lower extension platform; 322, groove; 323, plastic shell; 324, air bag; 325, foot pad; 326, gasket. DETAILED DESCRIPTION

[0021] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] In the description of the utility model embodiments, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model embodiments and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model embodiments, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0023] In the embodiments of the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0024] Please refer to Figures 1 to 5The utility model provides an embodiment: a kind of aluminum electrolytic capacitor with anti-shock structure, including capacitor main body 1 and the pin 2 of being set to capacitor main body 1, pin 2 is provided with two, and two pins 2 are fixed to the lower end surface of capacitor main body 1, still be provided with anti-shock structure 3 on capacitor main body 1, anti-shock structure 3 includes positioning shell 31 and multiple anti-shock body 32 being set below positioning shell 31, positioning shell 31 is the cavity structure with opening in two ends and hollow inside, the lower end surface and upper end surface in the cavity of positioning shell 31 are all with capacitor main body 1 adhesion, to fix itself on the outside of capacitor main body 1 by using the upper and lower ends of positioning shell 31, anti-shock body 32 is provided with multiple, and multiple anti-shock body 32 is distributed on the circumference of positioning shell 31, anti-shock body 32 includes lower extension platform 321, recess 322 is set in the lower end surface of lower extension platform 321, plastic shell 323 is also fixed in recess 322, air bag 324 and pad foot 325 fixedly connected to the lower end surface of air bag 324 are set in recess 322, the top of air bag 324 is fixed in plastic shell 323, air bag 324 is the cavity structure with hollow inside, the atmospheric pressure value in air bag 324 is equal to the value of one standard atmospheric pressure, one end of pad foot 325 is located in recess 322 and is adhesion with the inner wall of recess 322, and the other end of pad foot 325 is stretched out from recess 322 and is set below lower extension platform 321, and pad 326 is fixed below pad foot 325;The material of pad 326 uses soft material such as rubber or silica gel, and pad 326 is directly contacted with PCB board, and plays the role of buffering.

[0025] When the pin 2 of the utility model is installed on actual circuit board, pad 326 will be adhesion with the surface of PCB board, because air bag 324 has certain elasticity, when capacitor main body 1 generates micro vibration, it will drive multiple anti-shock body 32 to vibrate, so that the air bag 324 on multiple anti-shock body 32 is compressed or expanded, simultaneously drive pad foot 325 to slide slightly in recess 322, cooperate the effect of pad 326, buffer capacitor main body 1, to play the role of shock absorption.

[0026] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An aluminum electrolytic capacitor with a shock-resistant structure, comprising a capacitor body (1) and leads (2) disposed on the capacitor body (1), characterized in that: The capacitor body (1) is also provided with an anti-vibration structure (3). The anti-vibration structure (3) includes a positioning shell (31) and a plurality of anti-vibration bodies (32) disposed below the positioning shell (31). The anti-vibration body (32) includes a lower extension platform (321). The lower end face of the lower extension platform (321) is provided with a groove (322). An airbag (324) and a pad (325) fixedly connected to the lower end face of the airbag (324) are disposed in the groove (322). The airbag (324) is a hollow cavity structure.

2. An aluminum electrolytic capacitor with a shock-resistant structure according to claim 1, characterized in that: There are two pins (2), and both pins (2) are fixed to the lower end face of the capacitor body (1).

3. An aluminum electrolytic capacitor with a shock-resistant structure according to claim 1, characterized in that: The positioning shell (31) is a cavity structure with openings at both ends and a hollow interior.

4. An aluminum electrolytic capacitor with a shock-resistant structure according to claim 1, characterized in that: The lower and upper end faces of the positioning shell (31) cavity are both in contact with the capacitor body (1).

5. An aluminum electrolytic capacitor with a shock-resistant structure according to claim 1, characterized in that: Multiple earthquake-resistant bodies (32) are provided, and the multiple earthquake-resistant bodies (32) are distributed on the circumference of the positioning shell (31).

6. An aluminum electrolytic capacitor with a shock-resistant structure according to claim 1, characterized in that: A plastic shell (323) is also fixed inside the groove (322), and the top of the airbag (324) is fixed inside the plastic shell (323).

7. An aluminum electrolytic capacitor with a shock-resistant structure according to claim 1, characterized in that: The atmospheric pressure inside the airbag (324) is equal to the value of one standard atmosphere.

8. An aluminum electrolytic capacitor with a shock-resistant structure according to claim 1, characterized in that: One end of the pad (325) is located in the groove (322) and fits against the inner wall of the groove (322), while the other end extends out of the groove (322) and is positioned below the lower extension platform (321).

9. An aluminum electrolytic capacitor with a shock-resistant structure according to claim 1, characterized in that: A pad (326) is fixed below the foot (325).

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