Ox horn type aluminum electrolytic capacitor

Abstract

The utility model discloses an ox horn type aluminum electrolytic capacitor, which comprises a capacitor body and a pin, one end of the pin extends out of the capacitor body and is connected with a circuit board, and the ox horn type aluminum electrolytic capacitor is characterized in that the capacitor body is provided with an energy absorption column positioned beside the pin; wherein the energy absorption column comprises a first column body in contact with the circuit board and a second column body connected with the capacitor body, and the first column body is movably arranged in an inner cavity of the second column body through an elastic energy absorption assembly. When vibration generated by operation of equipment is transmitted to the pins from the circuit board, transmitted to the capacitor body from the pins and vibrates the capacitor body, the first column body moves into the second column body along with the vibration, and energy is absorbed through deformation of the elastic energy absorption assembly, so that pin breakage caused by shaking of the capacitor is avoided.

Description

Technical Field

[0001] The utility model relates to the technology of capacitor field, in particular to a horn-shaped aluminum electrolytic capacitor. Background Art

[0002] Aluminum electrolytic capacitors are generally used in conjunction with circuit boards, and are installed by soldering the cathode pin and anode pin of the aluminum electrolytic capacitor to the circuit board.

[0003] When the circuit board is installed on a vibrating device such as an engine, because the aluminum electrolytic capacitor itself is slightly larger in size and needs to be used normally, other electrical components will be installed next to the aluminum electrolytic capacitor on the circuit board for use in conjunction with the aluminum electrolytic capacitor.

[0004] In order to cooperate with these electrical components, the aluminum electrolytic capacitors soldered on the circuit board through the cathode pins and the anode pins are basically suspended. When the above-mentioned equipment is working and generates vibration, the vibration equipment is transmitted to the circuit board, and the circuit board transmits it to the aluminum electrolytic capacitor through the cathode pins and the anode pins. Because the aluminum electrolytic capacitor is suspended, when it shakes for a long time with the vibration transmitted by the vibration equipment, the cathode pins and the anode pins may break, thereby affecting the normal operation of the circuit board. Utility Model Content

[0005] In view of this, the present invention aims to solve the defects in the prior art, and its main purpose is to provide a horn-type aluminum electrolytic capacitor to solve the problem of pin breakage.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: a bullhorn type aluminum electrolytic capacitor, a capacitor body and a pin, one end of the pin extends from the capacitor body and is connected to the circuit board, and the capacitor body is provided with an energy absorbing column located beside the pin;

[0007] The energy absorbing column comprises a first column in contact with the circuit board and a second column connected to the capacitor body, and the first column is movably arranged in the inner cavity of the second column through an elastic energy absorbing component.

[0008] Furthermore, the elastic energy absorbing component includes a compression spring, one end of which contacts the corresponding end of the first column, and the other end of which is fixed to the end wall of the inner cavity of the second column.

[0009] Furthermore, the elastic energy absorbing component includes a flexible rod, which is a flexible rod supported by a memory metal / soft rubber material. One end of the flexible rod abuts against the corresponding end of the first column, and the other end is fixed to the end wall of the inner cavity of the second column.

[0010] Furthermore, the elastic energy absorbing component also includes a buffer layer, which is located in the inner cavity and contacts the corresponding end of the first column.

[0011] Furthermore, the buffer layer is a lubricating oil solution.

[0012] Furthermore, a sealing ring is provided at the corresponding end of the first column or the second column.

[0013] Furthermore, the first column can be detachably contacted with the circuit board.

[0014] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that by adding an energy-absorbing column to the side of the pin, the vibration force generated by the operation of the equipment is transmitted from the circuit board to the pin and the energy-absorbing column. The first column in the energy-absorbing column moves into the second column due to the vibration, and resists the elastic energy-absorbing component to produce deformation and absorb energy, thereby reducing the vibration force transmitted to the pin, thereby reducing the shaking of the capacitor body caused by vibration, thereby avoiding pin breakage.

[0015] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of embodiment 1 of the present utility model.

[0017] Figure 2 It is a cross-sectional view of the energy absorbing column of Example 1 of the present utility model.

[0018] Figure 3 It is a cross-sectional view of the energy absorbing column of Example 1 of the present utility model.

[0019] Description of the accompanying drawings:

[0020] 10 Capacitor body 11 Pin

[0021] 20 energy absorbing column 21 first column

[0022] 22 second column 23 inner cavity

[0023] 30 elastic energy absorbing component 31 buffer layer

[0024] 32 compression spring 33 flexible rod

[0025] 40 circuit board 50 sealing ring. DETAILED DESCRIPTION

[0026] Please refer to Figure 1-3As shown, it shows the specific structure of the first preferred embodiment of the utility model, which is a bullhorn aluminum electrolytic capacitor, including a capacitor body 10 and a pin 11, one end of the pin 11 extends from the capacitor body 10 and is connected to the circuit board 40, and the capacitor body 10 is provided with an energy absorption column 20 located next to the pin; wherein, the energy absorption column 20 includes a first column 21 in contact with the circuit board 40 and a second column 22 connected to the capacitor body 10, and the first column 21 is movably arranged in the inner cavity 23 of the second column 22 through an elastic energy absorption component 30. Compared with the existing aluminum electrolytic capacitors that are fixed to the circuit board by pin soldering and the pin strength is strengthened to avoid the pin from breaking due to capacitor vibration. The aluminum electrolytic capacitor is equipped with an energy absorption column 20 on the capacitor body 10, and the energy absorption column 20 is arranged next to the pin 11 to limit the damage to the pin 11 caused by the vibration of the capacitor body 10, and reduce the vibration amplitude of the capacitor body 10 by absorbing energy.

[0027] Specifically, when the capacitor body 10 shakes due to the vibration transmitted from the circuit board 40, the capacitor body 10 shakes due to the vibration. When shaking, the first column 21 that contacts the circuit board 40 moves toward the second column 22 due to extrusion. At this time, the second column 22 squeezes the elastic energy absorption component 30 in the first column 21, and energy is absorbed by the elastic energy absorption component 30 to reduce the shaking of the capacitor body 10 and prevent the pin 11 from breaking due to the shaking of the capacitor body 10.

[0028] Exemplarily, there are at least two energy absorbing columns 20 , which are respectively located beside the corresponding pins 11 . When the capacitor body 10 shakes due to vibration, the shaking amplitude of the pins 11 and the capacitor body 10 is reduced due to the limitation of the energy absorbing columns 20 .

[0029] like Figure 2 As shown, the elastic energy absorption component 30 includes a compression spring 32, one end of which is fixed to one end of the first column 21 inserted into the second column 22, and the other end is fixed to the inner cavity end wall of the second column 22. When the capacitor body 10 shakes, the first column 21 moves into the second column 22 and squeezes the compression spring 32, causing the compression spring 32 to shrink due to the squeezing, and then the compression spring 32 elastically resets to push the first column 21 to contact the circuit board 40. In this process, the compression spring 32 absorbs energy through elastic deformation and reduces the shaking of the capacitor body 10 caused by vibration.

[0030] like Figure 3As shown, the elastic energy absorption component 30 includes a flexible rod 33, which is a flexible rod made of memory metal / soft rubber or the like that is bendable and repositionable. One end of the flexible rod 33 is fixed to one end of the first column 21 inserted into the second column 22, and the other end is fixed to the end wall of the inner cavity of the second column 22. Since the flexible rod 33 is a vertical rod in the reset state, when the first column 21 moves toward the inner cavity of the second column 22, the first column 21 squeezes the flexible rod 33, causing the flexible rod 33 to bend, and energy is absorbed and consumed by the bending and repositioning of the flexible rod 33, and in this way, the shaking degree of the capacitor body 10 is reduced.

[0031] Exemplarily, to avoid the separation of the first column 21 and the second column 22, the first column 21 and the second column 22 can be connected by a slide groove and a slide groove, or the first column 21 and the elastic energy absorption component 30 can be fixed to limit the position, both of which can avoid the separation of the first column 21 and the second column 22.

[0032] like Figure 2 As shown, illustratively, the elastic energy absorbing component 30 further includes a buffer layer 31, and the buffer layer 31 is located in the sealed cavity formed after the first column 21 is inserted into the inner cavity of the second column 22. The buffer layer 31 is a solution such as lubricating oil. Because the buffer layer 31 is a solution and wraps the elastic energy absorbing component 30, when the elastic energy absorbing component 30 is deformed by force, it will squeeze the solution, and the energy absorption effect is further increased by the buffering of the solution.

[0033] The corresponding end of the first column 21 or the second column 22 is provided with a sealing ring 50. The sealing ring 50 can be fixed on the outer wall of the first column 21, or installed on the end surface of the second column 22 sleeved with the first column 21, or installed in the inner cavity 23 on the second column 22, so as to prevent the buffer layer 31 in the inner cavity 23 from leaking.

[0034] The first column 21 is detachably in contact with the circuit board 40 .

[0035] It should be noted that the contact surface between the first column 21 and the circuit board 40 is larger than that of the pin 11 .

[0036] When the circuit board 40 is installed on the equipment and vibration is generated during the operation of the equipment, and the vibration force is transmitted to the circuit board 40, because the first column 21 contacts the surface of the circuit board 40 through the elastic energy absorption component 30, part of the vibration force transmitted to the circuit board 40 will be transmitted to the first column 21, causing the first column 21 to move into the inner cavity 23, and the first column 21 squeezes the compression spring 32 or the flexible rod 33. When the compression spring 32 or the flexible rod 33 is deformed under force, it will also squeeze the buffer layer 31 in the inner cavity 23. The compression spring 32 or the flexible rod 33 is reset by its own elastic reset force. In this process, the compression spring 32 or the flexible rod 33 and the buffer layer 31 consume energy through deformation, thereby reducing the vibration force transmitted to the pin 11.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A horn-shaped aluminum electrolytic capacitor, comprising a capacitor body (10) and a pin (11), wherein one end of the pin (11) extends out from the capacitor body (10) and is connected to a circuit board (40), characterized in that: The capacitor body (10) is provided with an energy absorbing column (20) located beside the pin; The energy absorption column (20) comprises a first column (21) in contact with a circuit board (40) and a second column (22) connected to a capacitor body (10); the first column (21) is movably disposed in an inner cavity (23) of the second column (22) via an elastic energy absorption component (30).

2. The horn-shaped aluminum electrolytic capacitor according to claim 1, characterized in that: The elastic energy absorbing component (30) comprises a compression spring (32), one end of which contacts the corresponding end of the first column (21), and the other end of which is fixed to the inner cavity end wall of the second column (22).

3. The horn-shaped aluminum electrolytic capacitor according to claim 1, characterized in that: The elastic energy absorption component (30) comprises a flexible rod (33), which is a flexible rod supported by a memory metal / soft rubber material. One end of the flexible rod (33) abuts against the corresponding end of the first column (21), and the other end is fixed to the inner cavity end wall of the second column (22).

4. A horn-type aluminum electrolytic capacitor according to claim 2 or 3, characterized in that: The elastic energy absorbing component (30) further comprises a buffer layer (31), wherein the buffer layer (31) is located in the inner cavity (23), and the buffer layer (31) is in contact with a corresponding end of the first column (21).

5. The horn-type aluminum electrolytic capacitor according to claim 4, characterized in that: The buffer layer (31) is a lubricating oil solution.

6. The horn-type aluminum electrolytic capacitor according to claim 1, characterized in that: A sealing ring (50) is provided at the corresponding end of the first column (21) or the second column (22).

7. The horn-type aluminum electrolytic capacitor according to claim 1, characterized in that: The first column (21) is detachably in contact with the circuit board (40).

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