A high-vibration-resistant capacitor

Abstract

This invention discloses a high-vibration-resistant capacitor, comprising a capacitor body, a capacitor base plate fitted onto the head of the capacitor body, and a capacitor fixing plate mounted on the tail of the capacitor body. The capacitor body includes an aluminum shell, a cover plate, and leads extending from the cover plate. The capacitor base plate has a cavity for accommodating the head of the capacitor body, the depth of which is greater than or equal to the thickness of the cover plate and less than half the length of the capacitor body. The capacitor fixing plate has a receiving space for accommodating the tail of the capacitor body, the inner diameter of which is equal to the inner diameter of the cavity in the capacitor base plate. This high-vibration-resistant capacitor can be stably mounted and fixed on a circuit board, preventing shaking due to vehicle vibrations, thus adapting to complex automotive application environments with various bumps and vibrations.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic devices, and in particular relates to a high-vibration-resistant capacitor. Background Art

[0002] Electrolytic capacitors have been widely used in various electronic devices, but the vibration resistance of capacitors is generally low and can only be used in environments with low vibration intensity. The main material of the positive and negative lead wires of electrolytic capacitors is aluminum with good ductility, which is very easy to deform or break when subjected to external forces. When the capacitor needs to be used in an environment with high vibration intensity, it vibrates along the vibration direction, and the lead wires are very likely to break.

[0003] With the development of new energy vehicles and the wide application of electrolytic capacitors, on-board electrolytic capacitors have been widely used in the vehicle manufacturing process. In various situations where electricity is needed, such as car ignition, honking, flashing headlights, etc., on-board electrolytic capacitors play a good protective role for batteries and circuits. In view of the application environment of automobiles, existing on-board electrolytic capacitors have certain disadvantages when used. First, the vehicle is prone to vibration during driving, which in turn affects the stability of the electrolytic capacitor and easily causes the electrolytic capacitor to be out of the installation position, bringing adverse effects. Secondly, during the operation of the electrolytic capacitor, the internal core package is heated, which also puts high requirements on the heat dissipation of the electrolytic capacitor.

[0004] It can be seen that, with respect to the above-mentioned current existing technologies, it is necessary to conduct research and development to provide a solution so that the capacitor can be stably and firmly mounted on the circuit board to adapt to various complex application environments with bumps and vibrations.

[0005] The disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0006] The object of the present invention is to provide a highly seismic-resistant capacitor to solve at least one of the above-mentioned background technical problems.

[0007] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0008] A highly seismic-resistant capacitor comprises a capacitor body, a capacitor seat plate sleeved on the head of the capacitor body, and a capacitor fixing plate installed on the tail of the capacitor body; wherein the capacitor body comprises an aluminum shell, a cover plate, and lead terminals led out from the cover plate; the capacitor seat plate is provided with a cavity for accommodating the head of the capacitor body, the depth of the cavity is greater than or equal to the thickness of the cover plate and less than half the length of the capacitor body; the capacitor fixing plate is provided with a receiving space for accommodating the tail of the capacitor body, and the inner diameter of the receiving space is equal to the inner diameter of the cavity of the capacitor seat plate.

[0009] In some embodiments, the depth of the receiving space of the capacitor fixing plate is equal to the depth of the cavity of the capacitor seat plate.

[0010] In some embodiments, the inner diameter of the cavity of the capacitor seat plate is equal to the outer diameter of the capacitor body, and the outer wall of the shell of the capacitor body is in full contact with the inner wall of the cavity.

[0011] In some embodiments, the capacitor seat plate includes a seat plate body, and a plurality of support arms are vertically extended from the periphery of the inner surface of the seat plate body, and the inner sides of the plurality of support arms enclose the cavity.

[0012] In some embodiments, the seat plate body is provided with a groove penetrating the inner surface of the seat plate body and the outer surface of the seat plate body; and the bottom surface of the seat plate body is provided as a flat plane.

[0013] In some embodiments, the plurality of support arms include a first support arm, a second support arm, a third support arm, and a fourth support arm; the slots are respectively disposed between the second support arm and the first support arm and the third support arm.

[0014] In some embodiments, the capacitor fixing plate includes a seat body and a plurality of support blocks at the periphery of the inner surface of the seat body and perpendicular to the inner surface of the seat body; the inner sides of the plurality of support blocks are surrounded to form a receiving space for accommodating the tail of the capacitor body.

[0015] In some embodiments, the seat body is further provided with a narrow groove penetrating the inner surface of the seat body and the outer surface of the seat body; and the bottom surface of the seat body is configured as a flat plane.

[0016] In some embodiments, the plurality of support blocks include a first support block, a second support block, a third support block, and a fourth support block; the narrow slots are respectively disposed between the second support block and the first support block and the third support block.

[0017] In some embodiments, the first support arm, the second support arm, and the third support arm of the capacitor seat plate correspond one-to-one to the first support block, the second support block, and the third support block of the capacitor fixing plate, respectively, and the outer surface of the second support arm and the outer surface of the second support block are on the same plane.

[0018] In some embodiments, the slot on the capacitor seat plate corresponds to the slot on the fixing plate and is on the same straight line.

[0019] In some embodiments, the thicknesses of the first support arm, the second support arm, and the third support arm of the capacitor seat plate are respectively equal to the thicknesses of the first support block, the second support block, and the third support block of the capacitor fixing plate.

[0020] The beneficial effects of the technical solution of the present invention are:

[0021] Compared with the prior art, the highly seismic-resistant capacitor of the present invention can be stably mounted and fixed on a circuit board to avoid shaking due to the vibration of the vehicle, so as to adapt to complex vehicle application environments with various bumps and vibrations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 is a three-dimensional schematic diagram of a highly seismic-resistant capacitor according to an embodiment of the present invention;

[0024] Figure 2 is a partially exploded schematic diagram of a highly seismic-resistant capacitor according to an embodiment of the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of a capacitor seat plate of a highly seismic-resistant capacitor according to an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of another angle of a capacitor seat plate of a highly seismic-resistant capacitor according to an embodiment of the present invention;

[0027] Figure 5 1 is another angled schematic diagram of a capacitor seat plate of a highly seismic-resistant capacitor according to an embodiment of the present invention;

[0028] Figure 6 It is a three-dimensional schematic diagram of a capacitor fixing plate of a highly seismic-resistant capacitor according to an embodiment of the present invention;

[0029] Figure 7is a schematic diagram from another angle of a capacitor fixing plate of a highly seismic-resistant capacitor according to an embodiment of the present invention;

[0030] Figure 8 It is another angle schematic diagram of a capacitor fixing plate of a highly seismic-resistant capacitor according to an embodiment of the present invention;

[0031] Fig. 9 It is an exploded schematic diagram of a capacitor fixing plate of a highly seismic-resistant capacitor according to an embodiment of the present invention;

[0032] Fig.10 It is a three-dimensional schematic diagram of a capacitor body of a highly seismic-resistant capacitor according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present invention clearer and more understandable, and to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for fixing or for circuit connection.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, unless otherwise clearly specified and defined, the meaning of "multiple" is two or more, and the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] Reference Figure 1-Figure 9 As shown, as an embodiment of the present invention, a high-vibration-resistant capacitor is provided, comprising a capacitor body 100, a capacitor seat plate 200 sleeved on the head of the capacitor body, and a capacitor fixing plate 300 installed on the tail of the capacitor body; wherein the capacitor body 100 comprises an aluminum shell 1, a cover plate 2, and a lead-out terminal 21 led out from the cover plate 2; the capacitor seat plate 200 is provided with a cavity 20 for accommodating the head of the capacitor body 100, the depth of the cavity 20 is greater than or equal to the thickness of the cover plate 2, and is less than half the length of the capacitor body 100; the capacitor fixing plate is provided with a receiving space 301 for accommodating the tail of the capacitor body, and the inner diameter of the receiving space 301 is equal to the inner diameter of the cavity 20 of the capacitor seat plate.

[0038] In some embodiments, the depth of the receiving space 301 of the capacitor fixing plate is equal to the depth of the cavity 20 of the capacitor seat plate, or the depth of the receiving space 301 is less than one-third of the length of the capacitor body 100. In some embodiments, the bottom surface of the capacitor seat plate and the bottom surface of the capacitor fixing plate are arranged to be on the same plane, and after the capacitor is installed on the circuit board, a smooth installation can be ensured. In some embodiments, the plane where the bottom surface of the capacitor seat plate and the bottom surface of the capacitor fixing plate are located is parallel to the capacitor body. After the capacitor is installed on the circuit board, a gap is formed between the capacitor body and the circuit board, which is conducive to the heat dissipation of the capacitor body.

[0039] Reference Figure 3 , Figure 5As shown, specifically, the capacitor body 100 also includes a core package installed in the aluminum shell 1, the cover plate is used to encapsulate the core package in the aluminum shell, and the capacitor seat plate 200 is sleeved on the cover plate end of the capacitor body 100; wherein the lead terminal 21 includes an extension portion 210 extending perpendicularly to the capacitor cover plate, a bent portion 211 bent from the end of the extension portion 210, and a welding portion 212 bent and extended perpendicularly from the end of the bent portion 211; the capacitor seat plate 200 includes a seat plate body 10, the thickness of the seat plate body 10 is less than or equal to the length of the extension portion 210 of the lead terminal, and the seat plate body 10 is provided with a slot 101 that cooperates with the extension portion 210 of the lead terminal, a terminal guide groove 102 that accommodates the bent portion 211 of the lead terminal, and a terminal welding placement groove 103 that places the welding portion 212 of the lead terminal.

[0040] The inner diameter of the cavity 20 of the capacitor seat plate 200 is equal to the outer diameter of the capacitor body 100 , and the outer wall of the shell of the capacitor body 100 is completely in contact with the inner wall of the cavity 20 .

[0041] Specifically, refer to Figure 3-Figure 5 As shown, a plurality of support arms are vertically extended from the periphery of the inner surface of the seat plate body 10, and the inner sides of the plurality of support arms are enclosed to form the cavity 20 for accommodating the capacitor; a groove 101 is provided on the seat plate body 10, which passes through the inner surface of the seat plate body 10 and the outer surface of the seat plate body 10; a terminal guide groove 102 is provided on the outer surface of the seat plate body 10; the bottom surface of the seat plate body 10 is set to a flat plane, which is used to mount and fix the seat plate 200 on the circuit board, and a terminal welding placement groove 103 connected to the terminal guide groove 102 is provided on the bottom surface, which is used to place the welding part 212 of the capacitor lead terminal 21.

[0042] Reference Figure 3 As shown, the inner side of the plurality of support arms is configured as an arc surface, and the inner sides of the plurality of support arms are combined to form a cylindrical cavity 20 to match the circular capacitor. It should be noted that in some other embodiments, the inner sides of the plurality of support arms can also be configured as other shapes, such as being configured as a plane, and the inner sides of the plurality of support arms are combined to form a square cavity to match the square capacitor. In some embodiments, the outer side of each of the plurality of support arms is configured to be composed of a plurality of planes, and a reinforcing rib is formed at the connection between each two planes, thereby taking into account both the high strength of the seat plate and the small volume of the seat plate.

[0043] Reference Figure 3As shown, in one embodiment, the plurality of support arms include a first support arm 104, a second support arm 105, a third support arm 106, and a fourth support arm 107; wherein the first support arm 104, the second support arm 105, and the third support arm 106 are located on one half of the seat plate body 10, and the fourth support arm 107 is located on the other half of the seat plate body 10; the slots 101 are respectively provided between the second support arm 105 and the first support arm 104 and the third support arm 106. A notch 108 is provided between the first support arm 104 and the fourth support arm 107, and correspondingly, a notch 108 is also provided between the third support arm 106 and the fourth support arm 107; the notch 108 is higher than the inner surface of the seat plate body 10. By providing the notch and the large-scale slot, the exposed area of ​​the capacitor body is increased, which is beneficial to the heat dissipation of the capacitor body.

[0044] Reference Figure 4 , Figure 5 As shown, the slot 101 is symmetrically arranged with the center line of the outer surface of the seat plate body 10 as the center, and the terminal guide slot 102 is connected to the slot 101; correspondingly, the terminal guide slot 102 is symmetrically arranged on both sides of the outer surface of the seat plate body 10. In some embodiments, the slot width of the slot 102 is greater than or equal to the width of the terminal guide slot 102.

[0045] The terminal welding placement groove 103 includes a first section placement groove 1031 and a second section placement groove 1032, and the first section placement groove 1031 and the second section placement groove 1032 form an L shape on the bottom surface of the seat plate body 10; the first section placement groove 1031 and the second section placement groove 1032 are respectively connected to the terminal guide groove 102; the connection between the first section placement groove 1031, the second section placement groove 1032 and the terminal guide groove 102 is set to an arc transition.

[0046] Reference Figure 3 , Figure 4 , Figure 5 As shown, on the outer surface of the seat plate body 10, the direction parallel to the outer surface of the seat plate body 10 is defined as the width direction, and the direction perpendicular to the outer surface of the seat plate body 10 is defined as the depth direction. In some embodiments, the depth d of the terminal guide groove 102 is equal to the width w; the width w of the first section placement groove 1031 is equal to the width w of the first section placement groove 1031. ` The depth d of the first section placement groove 1031 is the same as the width w of the terminal guide groove 102. `It is twice the depth d of the terminal guide groove 102. On the bottom surface of the seat plate body, the direction parallel to the bottom surface of the seat plate body 10 is defined as the width direction, and the direction perpendicular to the bottom surface of the seat plate body 10 is defined as the depth direction; in some embodiments, the depth of the second section placement groove 1032 is equal to the depth of the terminal guide groove 102; in some embodiments, the width of the second section placement groove 1032 is equal to the width of the terminal guide groove 102; in some embodiments, the width of the second section placement groove 1032 is twice the width of the terminal guide groove.

[0047] Reference Figure 1 , Figure 2 , Figure 6 As shown, the lead terminal 21 includes an extension portion 210 extending perpendicularly to the capacitor cover, a bent portion 211 bent into an L shape from the end of the extension portion, and a welding portion 212 bent and extended from the end of the bent portion in a direction opposite to the extension direction of the extension portion, and the end of the welding portion 212 points to the bottom of the capacitor body 100. In some embodiments, the bent portion 211 is bent in a direction away from the center of the capacitor cover; in some implementations, the bent portion 211 is parallel to the surface of the capacitor cover 2. In some embodiments, the welding portion 212 is parallel to the side of the capacitor body; in some embodiments, the plane where the welding portion 212 is located is orthogonal to the plane where the bent portion 211 is located.

[0048] Reference Figure 1 , Figure 2 As shown, the lead terminal 21 passes through the slot 101 on the seat plate body, the length of the extension portion 210 of the lead terminal 21 is greater than or equal to the thickness of the seat plate body 10, and the inner surface of the seat plate contacts the surface of the capacitor cover plate 2, so that the capacitor body 100 is stably installed and fixed on the seat plate 200 to prevent the capacitor body from shaking. The bent portion 211 of the lead terminal 21 is placed in the terminal guide groove 102 on the outer surface of the seat plate body 10, and the shape and size of the bent portion 211 are adapted to the guide groove 102. The welding portion 212 of the lead terminal is placed in the terminal welding placement groove 103 of the seat plate body. In some embodiments, the diameter of the bent portion 211 of the lead terminal is adapted to the width of the terminal guide groove 102, so that the bent portion 211 is seamlessly in contact with the terminal guide groove 102 and is tightly stuck in the terminal guide groove 102; in some embodiments, the surface of the bent portion of the lead terminal 21 is flush with the outer surface of the seat plate body.

[0049] It should be noted that, corresponding to the two slots 101 on the seat plate body 10, the lead terminals include a positive lead terminal 21 and a negative lead terminal 22, and the positive lead terminal includes a positive lead terminal and a negative lead terminal with the same structure, which correspond to the two slots of the seat plate body. In some embodiments, the distance between the two slots 101 is specifically equal to the distance between the positive lead terminal 21 and the negative lead terminal 22;

[0050] Reference Figure 1 , Figure 2 As shown, when the capacitor body 100 is installed on the chip capacitor seat plate 200 of the present invention, the positive and negative lead terminals 21 and 22 of the capacitor body 100 pass through the slot 101 respectively, and after being guided by the terminal guide slot 102, the welding ends of the positive and negative lead terminals 21 and 22 are placed in the terminal welding placement slot 103 respectively, and then welded to the circuit board, and the bottom surface of the seat plate body is closely mounted on the circuit board. In some embodiments, the width of the terminal guide slot 102 is set to match the diameter of the positive and negative lead terminals 21 and 22 of the capacitor, so as to ensure that when the positive and negative lead terminals 21 and 22 of the capacitor are placed in the terminal guide slot, the positive and negative lead terminals 21 and 22 will not be higher than the bottom surface of the seat plate body.

[0051] Reference Figure 4 , Figure 5 , Figure 6 As shown, the terminal welding placement groove 103 is configured to include a first section placement groove 1031 and a second section placement groove 1032, so as to meet various positive and negative lead-out terminal structures of the capacitor. The bottom surface of the seat plate body 10 is a flat surface, which can ensure that when the seat plate is mounted on the circuit board, the contact area is large and the mounting is stable and firm. If necessary, the seat plate can be fixed on the circuit board by dispensing glue or other methods.

[0052] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5As shown, in some embodiments, the inner surface and the outer surface of the seat plate body 10 are parallel to each other, and the inner surface of the seat plate body 10 is configured to match the shape of the cover plate of the capacitor body 100, so as to ensure that the capacitor body 100 can be fully contacted with the seat plate 200 when it is installed on the seat plate, and the installation is more firm and firm. In some embodiments, the seat plate body 10 is also provided with a positioning groove 109, and the positioning groove 109 is configured to divide the capacitor seat plate 200 into two halves; in some embodiments, the positioning groove 109 connects the second support arm 105, the outer surface of the seat plate body and the fourth support arm 107. When the capacitor is installed on the circuit board, the seat plate is fixed on the circuit board, and the welding part in the terminal welding placement groove is welded on the circuit board, and the solder fills the terminal welding placement groove, so that the capacitor is installed on the circuit board, and the installation is fixed and firm. In addition, the welding part of the lead terminal is parallel to the side of the capacitor. After being welded to the circuit board, the force of the capacitor in the longitudinal direction and the transverse direction is greatly improved, thereby ensuring that the capacitor is stably installed on the circuit board with strong anti-vibration performance. Furthermore, the seat plate of the present invention is designed in this way so as to take into account both the small size and high strength of the seat plate, and can stably fix the capacitor on the circuit board; in addition, by providing slots and recesses between the support arms, and arranging the cavity for accommodating the capacitor to ensure that the capacitor can be accommodated while maximizing the area of ​​the capacitor surface exposed to the outside, the heat dissipation performance of the capacitor is improved.

[0053] Please refer to Figure 1 , Figure 2 , Figure 6-Figure 9 As shown, the capacitor fixing plate 300 includes a base body 30, a plurality of support blocks at the inner surface periphery of the base body 30 perpendicular to the inner surface of the base body, and a welding piece 31 installed on the base body 30; wherein the inner sides of the plurality of support blocks enclose a receiving space 301 for accommodating the tail of the capacitor body; the welding piece 31 is installed on the bottom surface of the base body 30 for welding to the circuit board, thereby fixing the capacitor fixing plate 300 on the circuit board, and further stably installing the capacitor body 100 on the circuit board.

[0054] Reference Figure 6-Figure 9 As shown, the seat body 30 is provided with a mounting hole 302 at one end near the bottom surface of the seat body for mounting the welding piece 31; the mounting hole 302 passes through the inner surface of the seat body 30 and the outer surface of the seat body, and after the welding piece 31 is installed in the mounting hole 302, one side of the welding piece 31 is exposed to the inner surface of the seat body 30; one end of the cover plate of the capacitor is defined as the top end, and the other end opposite to the top end is defined as the bottom end, and the bottom end of the capacitor body 100 is placed in the receiving space 301 of the capacitor fixing plate 300, tightly fitting the inner surface of the seat body 30, and contacting with the welding piece 31.

[0055] Reference Figure 6 , Fig. 9 As shown, the welding piece 31 includes a mounting portion 310 and a welding portion 311 bent perpendicularly to the mounting portion 310; in some embodiments, the mounting portion 310 is mounted at the mounting hole 302 of the seat body, and a retaining piece 3101 is provided at the end of the mounting portion 310, and the retaining piece 3101 is clamped on the inner surface of the seat body. The welding portion 311 is attached to the bottom surface of the seat body and protrudes from the bottom surface of the seat body; in some embodiments, the welding portion 311 is fixedly connected to the bottom surface of the seat body, so that the capacitor fixing plate is more stable when installed on the circuit board. It should be noted that in some embodiments, the welding piece 31 can also be fixed to the seat body 30 by dispensing glue or other methods, such as opening a mounting groove on the bottom surface of the seat body, and the welding portion of the welding piece is installed in the mounting groove.

[0056] Refer to the figure Figure 7 , Fig. 9 As shown, the seat body 30 is also provided with a narrow groove 32 penetrating the inner surface and the outer surface of the seat body; the bottom surface of the seat body 30 is set as a flat plane for mounting and fixing the capacitor fixing plate on the circuit board.

[0057] Reference Figure 6 , Figure 7 As shown, the inner sides of the plurality of support blocks are provided with an arc surface, so that the inner sides of the plurality of support blocks enclose a cylindrical cavity to match the circular capacitor. It should be noted that in some other embodiments, the inner sides of the plurality of support blocks can also be set to other shapes, such as a plane, and the inner sides of the plurality of support blocks enclose a square cavity to match the square capacitor.

[0058] Reference Figure 6 , Figure 7 As shown, in one embodiment, the plurality of support blocks include a first support block 33, a second support block 34, a third support block 35, and a fourth support block 36; wherein the first support block 33, the second support block 34, and the third support block 35 are located on one half of the seat body, and the fourth support block 36 is located on the other half of the seat body; the narrow groove 32 is respectively provided between the second support block 34 and the first support block 33 and the third support block 35. A groove 37 is provided between the first support block 33 and the fourth support block 36, and correspondingly, a groove 37 is also provided between the third support block 35 and the fourth support block 36; the groove 37 is higher than the inner surface of the seat body. Referring to Figure 7As shown, in some embodiments, the inner side of the fourth support block 36 is arranged in an L shape corresponding to the position of the mounting hole 302 of the seat body. Through such a design, the inner surface of the receiving space 301 for installing the capacitor is not completely an arc surface, thereby increasing the friction between the receiving space 301 and the surface of the capacitor, thereby preventing the capacitor body 100 from rotating; in addition, by hollowing out, the material can also be reduced and the weight of the capacitor fixing plate can be reduced.

[0059] Reference Figure 7 As shown, there are two mounting holes 302 , which are respectively arranged at two corners of the fourth support block 36 close to the bottom surface of the seat body; corresponding to the mounting holes 302 , the welding sheets 31 are two sheets, which are respectively installed at the two mounting holes.

[0060] Reference Figure 7-Figure 8 As shown, the slots 32 are symmetrically arranged with the center line of the outer surface of the seat body as the center, and a channel 38 connected to the slots 32 is also provided on the outer surface of the seat body. When installing the fixed capacitor, the half side of the seat body 30 where the fourth support block 36 is located mainly bears the load, so through such a design, the structural strength and overall weight of the capacitor fixing plate are taken into account; by providing the slots and grooves, the material can be reduced and the weight can be reduced, but the strength of the capacitor fixing plate is not affected as a whole; at the same time, the area of ​​the capacitor exposed to the outside can also be increased, thereby improving the heat dissipation effect.

[0061] In some embodiments, a groove 39 is further provided on the seat body 30 , and the groove 39 is configured to divide the capacitor fixing plate into two halves; in some embodiments, the groove 39 connects the second support block 34 , the outer surface of the seat body and the fourth support block 36 .

[0062] Reference Figure 2 , Figure 3 , Figure 6As shown, in some embodiments, the first support arm 104, the second support arm 105, and the third support arm 106 of the capacitor seat plate correspond to the first support block 33, the second support block 34, and the third support block 35 of the capacitor fixing plate, respectively, and the outer surface of the second support arm 105 and the outer surface of the second support block 34 are in the same plane. In some embodiments, the slot 101 on the capacitor seat plate corresponds to the slot 32 on the fixing plate and is in the same straight line, so that the design facilitates uniform heat dissipation of the capacitor body. In some embodiments, the notch 108 on the capacitor seat plate is arranged opposite to the groove 37 on the capacitor fixing plate, and is in the same horizontal position along the surface of the capacitor body, or is staggered along the surface of the capacitor body. In some embodiments, the first support arm 104 and the third support arm 106 of the capacitor seat plate are exactly the same in shape and are symmetrically arranged on both sides of the second support arm 105; the shapes of the first support arm 104, the second support arm 105, and the third support arm 106 of the capacitor seat plate are respectively the same as the shapes of the first support block 33, the second support block 34, and the third support block 35 of the capacitor fixing plate. In some embodiments, the thickness of the first support arm 104, the second support arm 105, and the third support arm 106 of the seat plate are respectively equal to the thickness of the first support block 33, the second support block 34, and the third support block 35 of the capacitor fixing plate. With such arrangement of the present invention, the capacitor is more stable after being installed on the circuit board, and is conducive to the overall miniaturization design of the capacitor and the uniform heat dissipation of the capacitor body.

[0063] It is understandable that the above content is a further detailed description of the invention in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the invention is limited to these descriptions. For ordinary technicians in the technical field to which the invention belongs, without departing from the concept of the invention, they can also make several substitutions or modifications to the described embodiments, and these substitutions or modifications should be deemed to belong to the scope of protection of this patent. In the description of this specification, the description of reference terms "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention.

[0064] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradicting each other. Although the embodiments and advantages of the invention have been described in detail, it should be understood that various changes, substitutions and modifications may be made herein without departing from the scope defined by the appended claims.

[0065] Furthermore, the scope of the invention is not intended to be limited to the specific embodiments of the processes, machines, manufactures, compositions of matter, means, methods, and steps described in the specification. One of ordinary skill in the art will readily appreciate that the above disclosures, processes, machines, manufactures, compositions of matter, means, methods, or steps currently existing or to be developed that perform substantially the same functions as the corresponding embodiments described herein or obtain substantially the same results as the embodiments described herein may be utilized. Therefore, the appended claims are intended to include such processes, machines, manufactures, compositions of matter, means, methods, or steps within their scope.

Claims

1. A highly seismic resistant capacitor, characterized in that: It comprises a capacitor body, a capacitor seat plate sleeved on the head of the capacitor body, and a capacitor fixing plate installed on the tail of the capacitor body; wherein the capacitor body comprises an aluminum shell, a cover plate, and lead terminals led out from the cover plate; the capacitor seat plate is provided with a cavity for accommodating the head of the capacitor body, the depth of the cavity is greater than or equal to the thickness of the cover plate and less than half the length of the capacitor body; the capacitor fixing plate is provided with a receiving space for accommodating the tail of the capacitor body, and the inner diameter of the receiving space is equal to the inner diameter of the cavity of the capacitor seat plate.

2. The high-vibration-resistant capacitor according to claim 1, characterized in that: The depth of the receiving space of the capacitor fixing plate is equal to the depth of the cavity of the capacitor seat plate.

3. The high-vibration-resistant capacitor according to claim 1, characterized in that: The inner diameter of the cavity of the capacitor seat plate is equal to the outer diameter of the capacitor body, and the outer wall of the shell of the capacitor body is completely in contact with the inner wall of the cavity.

4. The high-vibration-resistant capacitor according to claim 1, characterized in that: The capacitor seat plate comprises a seat plate body, a plurality of support arms are vertically extended from the periphery of the inner surface of the seat plate body, and the inner sides of the plurality of support arms surround the cavity.

5. The high-vibration-resistant capacitor according to claim 4, characterized in that: The seat plate body is provided with a groove penetrating the inner surface of the seat plate body and the outer surface of the seat plate body; the bottom surface of the seat plate body is set to be a flat plane.

6. The high-vibration-resistant capacitor according to claim 5, characterized in that: The plurality of support arms include a first support arm, a second support arm, a third support arm, and a fourth support arm; the slots are respectively arranged between the second support arm and the first support arm and the third support arm.

7. The high-vibration-resistant capacitor according to claim 6, characterized in that: The capacitor fixing plate comprises a seat body and a plurality of supporting blocks which are perpendicular to the inner surface of the seat body at the periphery of the inner surface of the seat body; the inner sides of the plurality of supporting blocks are surrounded to form a receiving space for accommodating the tail of the capacitor body.

8. The high-vibration-resistant capacitor according to claim 7, characterized in that: The seat body is also provided with a narrow groove penetrating the inner surface of the seat body and the outer surface of the seat body; the bottom surface of the seat body is set to be a flat plane.

9. The high-vibration-resistant capacitor according to claim 8, characterized in that: The plurality of support blocks include a first support block, a second support block, a third support block, and a fourth support block; the narrow slots are respectively arranged between the second support block and the first support block and the third support block.

10. The high-vibration-resistant capacitor according to claim 9, characterized in that: The first support arm, the second support arm and the third support arm of the capacitor seat plate correspond to the first support block, the second support block and the third support block of the capacitor fixing plate respectively, and the outer surface of the second support arm and the outer surface of the second support block are on the same plane.

11. The high-vibration-resistant capacitor according to claim 9, characterized in that: The slots on the capacitor seat plate correspond to the narrow slots on the fixing plate and are on the same straight line.

12. The high vibration-resistant capacitor according to claim 9, characterized in that: The thicknesses of the first support arm, the second support arm and the third support arm of the capacitor seat plate are respectively equal to the thicknesses of the first support block, the second support block and the third support block of the capacitor fixing plate.

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