Protective device for solid-state capacitor

Abstract

The utility model discloses a protection device for a solid-state capacitor, which comprises a protection shell, a capacitor body is fixedly mounted in the protection shell, a first terminal is fixedly mounted on the left side of the top of the capacitor body, and a second terminal is fixedly mounted on the right side of the top of the capacitor body. According to the utility model, the protection housing and the packaging plate cooperate with each other to wrap and protect the capacitor body, so that the capacitor body is prevented from being directly extruded and impacted, the protection effect of the capacitor body is improved, the shielding layer is used for improving the shielding effect of the capacitor body, and the service life of the capacitor body is prolonged. The capacitor body is prevented from being easily interfered by other signals, the high-temperature-resistant performance of the capacitor body is improved under the action of the high-temperature-resistant layer, meanwhile, the problems that the capacitor is possibly influenced and damaged by the external environment during use, the capacitor is easily damaged and leaks electricity when being impacted by external force, and the capacitor cannot be damaged easily under the high-temperature condition are solved. And the problem that the capacitor cannot be used normally can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state capacitor protection, in particular to a protection device for solid-state capacitors. Background Art

[0002] Two conductors close to each other, with a non-conductive insulating medium in between, form a capacitor. When a voltage is applied between the two plates of a capacitor, the capacitor will store charge. The capacitance of a capacitor is numerically equal to the ratio of the amount of charge on one conductive plate to the voltage between the two plates. The basic unit of the capacitance of a capacitor is farad. In circuit diagrams, the letter C is usually used to represent the capacitor element. Capacitors play an important role in tuning, bypassing, coupling, filtering and other circuits. They are used in the tuning circuit of transistor radios, and in the coupling circuit and bypass circuit of color TVs. With the rapid development of electronic information technology, the replacement speed of digital electronic products is getting faster and faster. The production and sales of consumer electronic products, mainly flat-screen TVs, laptops, digital cameras and other products, continue to grow, driving the growth of the capacitor industry.

[0003] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the capacitor may be damaged by the influence of the external environment during use; when impacted by external force, the capacitor may be easily damaged and leakage may occur; and under high temperature conditions, the capacitor may not be used normally; therefore, a protective device for solid-state capacitors is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a protective device for solid-state capacitors, which has the advantage of improving the protective performance of capacitors and solves the problem that capacitors may be damaged by the external environment when in use. When impacted by external forces, the capacitors are easily damaged and leakage occurs. In addition, under high temperature conditions, the capacitors cannot be used normally.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective device for a solid-state capacitor, comprising a protective shell, a capacitor body is fixedly installed inside the protective shell, a first terminal is fixedly installed on the left side of the top of the capacitor body, and a second terminal is fixedly installed on the right side of the top of the capacitor body. A shielding layer is arranged on the surface of the capacitor body, and a high-temperature resistant layer is arranged on the surface of the capacitor body. The high-temperature resistant layer is sleeved on the surface of the shielding layer, and a metal tube is sleeved on the outer surface of the high-temperature resistant layer. The metal tube is elastically connected to the protective shell, and a packaging plate is clamped on the top of the protective shell.

[0006] The effects achieved by the above components are: by setting a protective shell and a packaging plate to cooperate with each other to cover and protect the capacitor body, the capacitor body is prevented from being directly squeezed and impacted, and the protection effect of the capacitor body is improved. The shielding layer is used to improve the shielding effect of the capacitor body to prevent the capacitor body from being easily interfered by other signals. The high temperature resistance of the capacitor body is improved under the action of the high temperature resistant layer, and the capacitor body is further prevented from being damaged by high temperature. The impact resistance of the capacitor body is improved under the action of the metal tube, thereby preventing the capacitor body from being unusable after being impacted.

[0007] Preferably, evenly distributed springs are fixedly mounted on the outer surface of the metal cylinder, and the other side of the springs is fixedly connected to the inner wall of the protective shell.

[0008] The effect achieved by the above components is: by setting a spring for elastically connecting the protective shell and the metal cylinder, when the protective shell is deformed due to squeezing or impact, the spring plays a buffering role on the squeezing force and impact force, and reduces the severity of deformation to a certain extent.

[0009] Preferably, the surface of the metal cylinder is provided with evenly distributed empty grooves, and the empty grooves are respectively located between the springs.

[0010] The effect achieved by the above components is: by setting the empty slot, the material used for the metal cylinder is reduced, thereby reducing the manufacturing cost.

[0011] Preferably, mounting holes are provided on both sides of the top of the packaging board, and the first terminal and the second terminal pass through the mounting holes respectively.

[0012] The effects achieved by the above components are: the installation holes are provided to avoid the installation of the first terminal and the second terminal, and to play a role in limiting the installation of the first terminal and the second terminal.

[0013] Preferably, the high temperature resistant layer comprises a silicon carbide layer, the silicon carbide layer is sleeved on the surface of the shielding layer, and an aluminum oxide layer is provided on the outer surface of the silicon carbide layer.

[0014] The effect achieved by the above components is: by arranging the silicon carbide layer and the aluminum oxide layer to cooperate with each other, it is used to improve the high temperature resistance of the capacitor body and prevent the capacitor body from being damaged by high temperature.

[0015] Preferably, the silicon carbide layer is bonded to the surface of the shielding layer, and the outer surface of the aluminum oxide layer is bonded to the inner surface of the metal cylinder.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model provides a protective shell and a packaging plate that cooperate with each other to cover and protect the capacitor body, thereby preventing the capacitor body from being directly squeezed and impacted, and improving the protection effect of the capacitor body. The shielding layer is used to improve the shielding effect of the capacitor body, and prevent the capacitor body from being easily interfered by other signals. The high temperature resistance of the capacitor body is improved under the action of the high temperature resistant layer, and the capacitor body is further prevented from being damaged by high temperature. The impact resistance of the capacitor body is improved under the action of the metal cylinder, and the capacitor body is prevented from being unable to be used after being impacted. At the same time, the problem that the capacitor may be damaged by the external environment during use is solved. When impacted by external force, the capacitor is easily damaged and leakage occurs. In addition, under high temperature conditions, the capacitor cannot be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the protective housing of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the capacitor body of the utility model;

[0021] Figure 4 This is a schematic diagram of the high temperature resistant layer structure of the utility model.

[0022] In the figure: 1. Protective shell; 2. Capacitor body; 3. First terminal; 4. Second terminal; 5. Shielding layer; 6. High temperature resistant layer; 601. Silicon carbide layer; 602. Aluminum oxide layer; 7. Metal cylinder; 8. Empty slot; 9. Spring; 10. Packaging board. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4A protective device for a solid-state capacitor includes a protective shell 1, a capacitor body 2 is fixedly installed inside the protective shell 1, a first terminal 3 is fixedly installed on the left side of the top of the capacitor body 2, a second terminal 4 is fixedly installed on the right side of the top of the capacitor body 2, a shielding layer 5 is arranged on the surface of the capacitor body 2, a high-temperature resistant layer 6 is arranged on the surface of the capacitor body 2, the high-temperature resistant layer 6 is sleeved on the surface of the shielding layer 5, a metal tube 7 is sleeved on the outer surface of the high-temperature resistant layer 6, the metal tube 7 is elastically connected to the protective shell 1, and a packaging plate 10 is clamped on the top of the protective shell 1.

[0025] Specifically, evenly distributed springs 9 are fixedly mounted on the outer surface of the metal cylinder 7 , and the other side of the spring 9 is fixedly connected to the inner wall of the protective shell 1 .

[0026] The spring 9 is used to elastically connect the protective shell 1 and the metal cylinder 7. When the protective shell 1 is deformed due to being squeezed or impacted, the spring 9 buffers the squeezing force and the impact force and reduces the severity of the deformation to a certain extent.

[0027] Specifically, the surface of the metal cylinder 7 is provided with evenly distributed slots 8 , and the slots 8 are respectively located between the springs 9 .

[0028] The hollow groove 8 is used to reduce the material used for the metal cylinder 7 and reduce the manufacturing cost.

[0029] Specifically, mounting holes are provided on both sides of the top of the packaging board 10 , and the first terminal 3 and the second terminal 4 pass through the mounting holes respectively.

[0030] The mounting hole is used to prevent the first terminal 3 and the second terminal 4 from being installed, and plays a role in limiting the installation of the first terminal 3 and the second terminal 4.

[0031] Specifically, the high temperature resistant layer 6 includes a silicon carbide layer 601 . The silicon carbide layer 601 is sleeved on the surface of the shielding layer 5 , and an aluminum oxide layer 602 is disposed on the outer surface of the silicon carbide layer 601 .

[0032] The silicon carbide layer 601 and the aluminum oxide layer 602 cooperate with each other to improve the high temperature resistance of the capacitor body 2 and prevent the capacitor body 2 from being damaged by high temperature.

[0033] Specifically, the silicon carbide layer 601 is bonded to the surface of the shielding layer 5 , and the outer surface of the aluminum oxide layer 602 is bonded to the inner surface of the metal cylinder 7 .

[0034] When in use, the protective shell 1 and the packaging plate 10 cooperate with each other to cover and protect the capacitor body 2, prevent the capacitor body 2 from being directly squeezed and impacted, and improve the protection effect of the capacitor body 2. The shielding layer 5 is used to improve the shielding effect of the capacitor body 2 to prevent the capacitor body 2 from being easily interfered by other signals. The high temperature resistant layer 6 improves the high temperature resistance of the capacitor body 2 to further prevent the capacitor body 2 from being damaged by high temperature. The metal tube 7 improves the impact resistance of the capacitor body 2 to prevent the capacitor body 2 from being unusable after being impacted.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for a solid capacitor, comprising a protective housing (1), characterized in that: A capacitor body (2) is fixedly mounted inside the protective shell (1); a first terminal (3) is fixedly mounted on the left side of the top of the capacitor body (2); a second terminal (4) is fixedly mounted on the right side of the top of the capacitor body (2); a shielding layer (5) is arranged on the surface of the capacitor body (2); a high temperature resistant layer (6) is arranged on the surface of the capacitor body (2); the high temperature resistant layer (6) is sleeved on the surface of the shielding layer (5); a metal cylinder (7) is sleeved on the outer surface of the high temperature resistant layer (6); the metal cylinder (7) is elastically connected to the protective shell (1); and a packaging plate (10) is clamped on the top of the protective shell (1).

2. A protective device for a solid capacitor according to claim 1, characterized in that: The outer surface of the metal cylinder (7) is fixedly mounted with evenly distributed springs (9), and the other side of the springs (9) is fixedly connected to the inner wall of the protective shell (1).

3. The protective device for a solid capacitor according to claim 1, characterized in that: The surface of the metal cylinder (7) is provided with evenly distributed hollow grooves (8), and the hollow grooves (8) are respectively located between the springs (9).

4. The protective device for a solid capacitor according to claim 1, characterized in that: Mounting holes are provided on both sides of the top of the packaging board (10), and the first terminal (3) and the second terminal (4) respectively pass through the mounting holes.

5. The protective device for a solid capacitor according to claim 1, characterized in that: The high temperature resistant layer (6) comprises a silicon carbide layer (601), the silicon carbide layer (601) is sleeved on the surface of the shielding layer (5), and an aluminum oxide layer (602) is provided on the outer surface of the silicon carbide layer (601).

6. A protective device for a solid capacitor according to claim 5, characterized in that: The silicon carbide layer (601) is bonded to the surface of the shielding layer (5), and the outer surface of the aluminum oxide layer (602) is bonded to the inner surface of the metal cylinder (7).

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