Vehicle-mounted horizontal electrolytic capacitor

Abstract

The utility model discloses a vehicle-mounted horizontal electrolytic capacitor, which comprises a capacitor body, a capacitor seat plate and a capacitor fixing seat, the capacitor body comprises an aluminum shell, a core bag and a capacitor cover plate; the capacitor cover plate is provided with a leading-out terminal, and the leading-out terminal comprises an extension part, a bending part which is bent from the tail end of the extension part, and a welding part which is vertically bent and extends from the tail end of the bending part. Wherein the welding part is bent towards the direction close to the center of the capacitor cover plate, and the extension track of the welding part is orthogonal to the central axis of the capacitor body; the capacitor seat plate comprises a seat plate main body, and the seat plate main body is provided with an open groove, a terminal guide groove for accommodating the bending part of the leading-out terminal, and a terminal welding placement groove. The capacitor fixing seat is provided with an accommodating space for accommodating the capacitor body. The vehicle-mounted horizontal electrolytic capacitor provided by the utility model can be stably installed and fixed on the circuit board, so that shaking caused by vibration of a vehicle is avoided, and the vehicle-mounted horizontal electrolytic capacitor can adapt to various complex application environments of jolting and vibration.

Description

Technical Field

[0001] This utility model belongs to the field of electronic device technology, and in particular relates to a vehicle-mounted horizontal electrolytic capacitor. Background Technology

[0002] In power supplies, aluminum electrolytic capacitors have become indispensable due to their high capacitance, high voltage, and reasonable price. In recent years, the application of leaded aluminum electrolytic capacitors with high voltage, large capacitance, and large ripple current has gradually increased.

[0003] With the development of new energy vehicles, many surface mount capacitors have been applied to them. Given the complex usage scenarios and safety considerations of automobiles, the installation requirements for surface mount capacitors used in automobiles are relatively high. It is necessary to ensure that the surface mount capacitors can be stably installed and fixed, and will not shake due to the vibration of the vehicle during long-term use, so as to avoid poor contact or loosening of contacts caused by shaking, which could lead to circuit failure.

[0004] However, the surface mount capacitors currently used in new energy vehicles do not adequately consider the installation and fixing issues. They are simply soldered to the circuit board with the positive and negative terminals. During long-term use of the vehicle, the capacitor is prone to shaking due to the bumps and vibrations of the car. Over time, this shaking can eventually cause the positive and negative terminals to loosen or be damaged, thus affecting the lifespan of the capacitor product.

[0005] Therefore, it is necessary to conduct research and development on the existing technologies to provide a solution that allows capacitors to be stably and securely mounted on circuit boards to adapt to complex application environments with various bumps and vibrations.

[0006] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0007] The purpose of this invention is to provide a vehicle-mounted horizontal electrolytic capacitor to solve at least one of the problems mentioned in the background section.

[0008] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0009] A vehicle-mounted horizontal electrolytic capacitor includes a capacitor body, a capacitor base plate fitted onto the head of the capacitor body, and a capacitor mounting base installed at the tail of the capacitor body. The capacitor body includes an aluminum shell, a core package encapsulated within the aluminum shell, and a capacitor cover plate for encapsulating the core package within the aluminum shell. The capacitor cover plate is provided with lead terminals, each lead terminal including an extension portion extending perpendicularly to the capacitor cover plate, a bent portion bending at the end of the extension portion, and a welded portion extending perpendicularly from the end of the bent portion. The welded portion bends towards the center of the capacitor cover plate, and the extension trajectory of the welded portion is orthogonal to the central axis of the capacitor body. The capacitor base plate includes a base plate body, which is provided with a slot that mates with the extension portion of the lead terminal, a terminal guide groove that accommodates the bent portion of the lead terminal, and a terminal welding placement groove that places the welded portion of the lead terminal. The capacitor mounting base is provided with a receiving space to accommodate the tail of the capacitor body.

[0010] In some embodiments, the plane defined by the welded portion and the bent portion is parallel to the plane where the capacitor cover plate is located.

[0011] In some embodiments, the lead-out terminal passes through a slot on the base plate body, and the length of the extension of the lead-out terminal is greater than or equal to the thickness of the base plate body.

[0012] In some embodiments, the bent portion of the lead-out terminal is placed in the terminal guide groove, and the shape and size of the bent portion are adapted to the guide groove.

[0013] In some embodiments, the surface of the bent portion of the lead-out terminal is flush with the outer surface of the base plate body.

[0014] In some embodiments, the base plate body has two slots, and the lead-out terminals include a positive lead-out terminal and a negative lead-out terminal.

[0015] In some embodiments, the distance between the two slots is equal to the distance between the positive terminal and the negative terminal.

[0016] In some embodiments, the width of the terminal guide groove is configured to match the diameter of the positive lead-out terminal and the negative lead-out terminal.

[0017] In some embodiments, the inner and outer surfaces of the seat body are parallel to each other, and the inner surface of the seat body is configured to conform to the shape of the capacitor cover.

[0018] In some embodiments, a plurality of support arms are vertically extended along the periphery of the inner surface of the seat plate body, and the inner sides of the plurality of support arms together form a cavity for accommodating the head of the capacitor body.

[0019] In some embodiments, the plurality of support arms includes a first support arm, a second support arm, a third support arm, and a fourth support; wherein the slots are respectively provided between the second support arm and the first and third support arms.

[0020] In some embodiments, the capacitor holder includes a base body and a plurality of support blocks perpendicular to the inner surface of the base body at its periphery. The inner sides of the plurality of support blocks together form a receiving space for accommodating the tail portion of the capacitor body.

[0021] The beneficial effects of this utility model's technical solution are:

[0022] Compared with existing technologies, the vehicle-mounted horizontal electrolytic capacitor of this invention can be stably installed and fixed on the circuit board, avoiding shaking due to vehicle vibration, so as to adapt to various complex application environments with bumps and vibrations. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the vehicle-mounted horizontal electrolytic capacitor of this utility model;

[0025] Figure 2 This is a partial illustration of an embodiment of the vehicle-mounted horizontal electrolytic capacitor of this utility model;

[0026] Figure 3 This is a three-dimensional schematic diagram of the capacitor base plate of a vehicle-mounted horizontal electrolytic capacitor according to an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the capacitor base plate of a vehicle-mounted horizontal electrolytic capacitor according to one embodiment of the present invention;

[0028] Figure 5 This is another angle schematic diagram of the capacitor base plate of the vehicle-mounted horizontal electrolytic capacitor according to an embodiment of this utility model;

[0029] Figure 6 This is a three-dimensional schematic diagram of the capacitor fixing plate of a vehicle-mounted horizontal electrolytic capacitor according to an embodiment of this utility model;

[0030] Figure 7 This is another perspective view of the capacitor fixing plate of a vehicle-mounted horizontal electrolytic capacitor according to one embodiment of this utility model;

[0031] Figure 8 This is an exploded view of the capacitor fixing plate of a vehicle-mounted horizontal electrolytic capacitor according to an embodiment of this utility model;

[0032] Figure 9 This is a three-dimensional schematic diagram of the capacitor body of a vehicle-mounted horizontal electrolytic capacitor according to an embodiment of the present invention. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects of the embodiments of this utility model clearer and more understandable, and to enable those skilled in the art to better understand the solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0034] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be for both fixing and circuit connection purposes.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, 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 this utility model, unless otherwise expressly specified and limited, "multiple" means two or more. Terms such as "installed," "connected," "joined," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Reference Figures 1-8 As shown in the figure, as an embodiment of the present invention, a vehicle-mounted horizontal electrolytic capacitor is provided, including a capacitor body 100, a capacitor base plate 200 sleeved on the head of the capacitor body 100, and a capacitor fixing seat 300 installed at the tail of the capacitor body 100; the capacitor body 100 includes an aluminum shell 1, a core package housed in the aluminum shell 1, and a capacitor cover plate 2 encapsulating the core package in the aluminum shell 1; the capacitor cover plate 2 is provided with lead terminals 21, the lead terminals 21 including 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 welded portion 212 extending perpendicularly from the end of the bent portion 211; wherein, the welded portion 212 is bent toward the center of the capacitor cover plate, and the extension trajectory of the welded portion 212 is orthogonal to the central axis of the capacitor body 100. The capacitor base plate 200 includes a base plate body 10, the thickness of which is less than or equal to the length of the extension 210 of the lead-out terminal. The base plate body 10 is provided with a slot 101 that mates with the extension 210 of the lead-out terminal, a terminal guide groove 102 that accommodates the bent portion 211 of the lead-out terminal, and a terminal welding placement groove 103 that places the welding portion 212 of the lead-out terminal. The capacitor fixing seat 300 is provided with a receiving space 301 that accommodates the tail of the capacitor body 100.

[0038] The base plate 200 is provided with a cavity 20 for accommodating the cover plate end of the capacitor body 100. The cavity 20 is configured such that its depth is greater than or equal to the thickness of the capacitor cover plate 2, and less than half the length of the capacitor body 100. The inner diameter of the cavity 20 is equal to the outer diameter of the capacitor body 100, and the outer wall of the capacitor body 100 is in complete contact with the inner wall of the cavity 20.

[0039] Specifically, refer to Figures 3-5As shown, a plurality of support arms extend vertically along the periphery of the inner surface of the base plate body 10, and the inner sides of the plurality of support arms enclose the cavity 20 for accommodating the capacitor; a slot 101 is provided on the base plate body 10, penetrating the inner surface and the outer surface of the base plate body 10; a terminal guide groove 102 is provided on the outer surface of the base plate body 10; the bottom surface of the base plate body 10 is set as a flat plane for mounting and fixing the base plate 200 onto the circuit board, and a terminal welding placement groove 103 connected to the terminal guide groove 102 is provided on the bottom surface for placing the welding part 212 of the capacitor lead-out terminal 21.

[0040] Reference Figure 3 As shown, the inner sides of the plurality of support arms are configured with arc-shaped surfaces, and the inner sides of the plurality of support arms enclose a cylindrical cavity 20 to fit a circular capacitor. It should be noted that in some other embodiments, the inner sides of the plurality of support arms can also be configured with other shapes, such as being planar, with the inner sides of multiple support arms enclosing a square cavity to fit a square capacitor. In some embodiments, the outer side of each support arm is configured to be composed of multiple planes, with a reinforcing rib formed at the junction of every two planes, thus balancing the high strength of the base plate with its small volume.

[0041] Reference Figure 3 As shown, in one embodiment, the plurality of support arms includes 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, while the fourth support arm 107 is located on the other half of the seat plate body 10; the second support arm 105 is provided with a slot 101 between it 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.

[0042] Reference Figure 4 , Figure 5 As shown, the slot 101 is symmetrically arranged with the center line of the outer surface of the base plate body 10 as the center, and the terminal guide groove 102 is connected to the slot 101; correspondingly, the terminal guide groove 102 is symmetrically arranged on both sides of the outer surface of the base plate body 10. In some embodiments, the width of the slot 102 is greater than or equal to the width of the terminal guide groove 102.

[0043] The terminal welding placement groove 103 includes a first placement groove 1031 and a second placement groove 1032. The first placement groove 1031 and the second placement groove 1032 form an L-shape on the bottom surface of the base plate body 10. The first placement groove 1031 and the second placement groove 1032 are respectively connected to the terminal guide groove 102. The connection between the first placement groove 1031, the second placement groove 1032 and the terminal guide groove 102 is set with an arc transition.

[0044] Reference Figure 3 , Figure 4 , Figure 5 As shown, on the outer surface of the base plate body 10, the direction parallel to the outer surface of the base plate body 10 is defined as the width direction, and the direction perpendicular to the outer surface of the base plate body 10 is defined as the depth direction. In some embodiments, the depth d of the terminal guide groove 102 is equal to its width w; the width w of the first placement groove 1031... ` The first placement groove 1031 has the same width w as the terminal guide groove 102, and a depth d. ` The depth d of the terminal guide groove 102 is twice the width direction. On the bottom surface of the base plate body 10, the direction parallel to the bottom surface of the base plate body 10 is defined as the width direction, and the direction perpendicular to the bottom surface of the base plate body 10 is defined as the depth direction. In some embodiments, the depth of the second placement groove 1032 is equal to the depth of the terminal guide groove 102. In some embodiments, the width of the second placement groove 1032 is equal to the width of the terminal guide groove 102. In some embodiments, the width of the second placement groove 1032 is twice the width of the terminal guide groove.

[0045] Reference Figure 1 , Figure 2 , Figure 9 As shown, specifically, the lead-out terminal 21 includes an extension 210 extending perpendicularly to the capacitor cover, a bent portion 211 bent into an L-shape from the end of the extension 210, and a welded portion 212 extending perpendicularly to the end of the bent portion 211. In some embodiments, the bent portion 211 is bent in a direction away from the center of the capacitor cover, and the welded portion 212 is bent in a direction closer to the center of the capacitor cover. The extension trajectory of the welded portion 212 is orthogonal to the axis of the capacitor body 100. In some embodiments, the plane defined by the welded portion 212 and the bent portion 211 is parallel to the plane where the capacitor cover is located.

[0046] Reference Figure 1 , Figure 2 , Figure 3As shown, the lead-out terminal 21 passes through the slot 101 on the base plate body. The length of the extension 210 of the lead-out terminal 21 is less than the thickness of the base plate body. The inner surface of the base plate contacts the surface of the capacitor cover plate, thereby allowing the capacitor body 100 to be stably mounted and fixed on the base plate, preventing the capacitor body 100 from shaking. The bent portion 211 of the lead-out terminal 21 is placed in the terminal guide groove 102 on the outer surface of the base plate body, and the shape and size of the bent portion 211 are adapted to the guide groove 102. The welding portion 212 of the lead-out terminal 21 is placed in the terminal welding placement groove 103 of the base plate body. In some embodiments, the diameter of the bent portion 211 of the lead-out terminal 21 is adapted to the width of the terminal guide groove 102, so that the bent portion 211 and the terminal guide groove 102 are in seamless contact and are tightly locked in the guide groove 102; in some embodiments, the surface of the bent portion 211 of the lead-out terminal 21 is flush with the outer surface of the base plate body; in some embodiments, the surface of the welding portion 212 of the lead-out terminal 21 is flush with or higher than the outer surface of the base plate body. With such a design, the capacitor can be mounted on the circuit board through the outer surface of the base plate body or through the bottom surface of the base plate body, and the mounting method is flexible and diverse.

[0047] It should be noted that, corresponding to the two slots 101 on the base plate body 10, the lead-out terminals include a positive lead-out terminal 21 and a negative lead-out terminal 22. The positive lead-out terminal and the negative lead-out terminal have the same structure and correspond to the two slots of the base plate body 10, respectively. In some embodiments, the distance between the two slots 101 is equal to the distance between the positive lead-out terminal 21 and the negative lead-out terminal 22.

[0048] Reference Figure 1 , Figure 2 , Figure 3 As shown, when the capacitor body 100 is mounted on the surface mount capacitor base plate 200 of this invention, the positive and negative terminals 21 and 22 of the capacitor body 100 pass through the slot 101, are guided by the terminal guide groove 102, and then the soldering ends of the positive and negative terminals 21 and 22 are placed in the terminal soldering placement groove 103, and then soldered onto the circuit board. The bottom surface of the base plate body is tightly attached to the circuit board. In some embodiments, the width of the terminal guide groove 102 is set to match the diameter of the positive and negative terminals 21 and 22 of the capacitor, thereby ensuring that when the positive and negative terminals 21 and 22 of the capacitor are placed in the terminal guide groove, the positive and negative terminals 21 and 22 will not protrude above the bottom surface of the base plate body.

[0049] Specifically, the soldering portion 212 within the terminal soldering placement groove 103 is soldered onto the circuit board, and the solder fills the terminal soldering placement groove 103, thereby mounting the capacitor onto the circuit board in a secure and stable manner. Furthermore, the extension direction of the soldering portion 212 of the lead-out terminal 21 is perpendicular to the central axis of the capacitor body. After soldering onto the circuit board, the lateral resistance of the capacitor increases, preventing lateral rolling. Combined with the fixing effect of the base plate, the capacitor can be well fixed onto the circuit board, improving its vibration resistance.

[0050] Reference Figure 3 , Figure 4 , Figure 5 As shown, the terminal welding placement groove 103 is configured to include a first placement groove 1031 and a second placement groove 1032, thereby accommodating various positive and negative terminal lead-out structures of the capacitor. The bottom surface of the base plate body 10 is a flat surface, ensuring a large contact area and stable and secure mounting when the base plate is attached to the circuit board. It should be noted that the base plate can be fixed to the circuit board by dispensing adhesive or other methods.

[0051] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, in some embodiments, the inner and outer surfaces of the base plate body 10 are parallel to each other. The inner surface of the base plate body 10 is configured to fit the shape of the cover plate of the capacitor body 100, thereby ensuring that the capacitor body 100 can make full contact with the base plate 200 when it is installed on the base plate, resulting in a more robust and secure installation. In some embodiments, the base plate body 10 is also provided with a positioning groove 109, which is configured to divide the capacitor base plate 200 into two halves. In some embodiments, the positioning groove 109 connects the second support arm 105, the outer surface of the base plate body, and the fourth support arm 107. When the capacitor is installed on the circuit board, the base plate is fixed to the circuit board, and the soldering part in the terminal soldering placement groove is soldered to the circuit board. The solder fills the terminal soldering placement groove, thereby installing the capacitor on the circuit board in a robust and secure manner. In addition, the soldering part of the lead-out terminal is parallel to the side of the capacitor. After being soldered to the circuit board, the forces in the longitudinal and lateral directions of the capacitor are greatly increased, thereby ensuring that the capacitor is stably installed on the circuit board and has strong vibration resistance. Furthermore, the base plate of this utility model, through such a design, can take into account both small size and high strength, and can stably fix the capacitor on the circuit board; in addition, by setting slots and notches between the support arms, and setting the cavity for accommodating the capacitor to ensure that the capacitor can be accommodated while maximizing the exposed surface area of ​​the capacitor, the heat dissipation performance of the capacitor is improved.

[0052] Reference Figure 6— Figure 8 As shown, the end of the capacitor body 100 with the cover plate is defined as the head of the capacitor body 100, and the other end of the capacitor body is defined as the tail of the capacitor body 100; in some embodiments, a capacitor mounting base 300 is installed at the tail of the capacitor body 100. (Refer to...) Figures 6-8 As shown, the capacitor mounting base 300 includes a base body 30, a plurality of support blocks perpendicular to the inner surface of the base body 30 at its periphery, and a welding piece 31 mounted on the base body 30; wherein, the inner sides of the plurality of support blocks together form a receiving space 301 for accommodating the tail of the capacitor body 100; the welding piece 31 is mounted on the bottom surface of the base body 30 for welding to a circuit board, thereby fixing the capacitor mounting base 300 to the circuit board, and thus stably mounting the capacitor body 100 on the circuit board.

[0053] Reference Figure 6 , Figure 7 , Figure 8 As shown, the base 30 has a mounting hole 302 at one end near the bottom surface of the base for mounting the welding piece 31; the mounting hole 302 penetrates the inner surface and outer surface of the base 30, and after the welding piece 31 is mounted in the mounting hole 302, one side of the welding piece 31 is exposed on the inner surface of the base 30; the tail of the capacitor body 100 is placed in the receiving space 301 of the capacitor fixing base 300, closely fitting the inner surface of the base 30 and contacting the welding piece 31.

[0054] Reference Figure 7 , Figure 8 As shown, the welding piece 31 includes a mounting portion 310 and a welding portion 311 bent perpendicular to the mounting portion 310. In some embodiments, the mounting portion 310 is mounted at the mounting hole 302 of the base, and a retaining piece 3101 is provided at the end of the mounting portion 310, which is held in place by the retaining piece 3101 on the inner surface of the base. The welding portion 311 is attached to the bottom surface of the base and protrudes from the bottom surface of the base. In some embodiments, the welding portion 311 is fixedly connected to the bottom surface of the base, thereby making the capacitor fixing plate more stable when mounted on the circuit board. In some embodiments, the base 30 is also provided with a slot 32 penetrating the inner surface and the outer surface of the base; the bottom surface of the base 30 is set as a flat plane for mounting and fixing the capacitor fixing plate on the circuit board.

[0055] Reference Figures 6-8As shown, in one embodiment, the plurality of support blocks includes 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 base, and the fourth support block 36 is located on the other half of the base; slots 32 are 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 base. (Refer to...) Figure 7 As shown, in some embodiments, the inner side of the fourth support block 36 is L-shaped at the position corresponding to the mounting hole 302 of the base. With this design, the inner surface of the receiving space 301 for mounting the capacitor is not completely arc-shaped, thereby increasing the friction between the receiving space 301 and the capacitor surface and preventing the capacitor body 100 from rotating. In addition, by hollowing out, the material can be reduced and the weight of the capacitor fixing plate can be reduced.

[0056] Reference Figure 7 , Figure 8 As shown, there are two mounting holes 302, which are respectively located at the two corners of the fourth support block 36 near the bottom surface of the base; corresponding to the mounting holes 302, there are two welding pieces 31, which are respectively installed at the two mounting holes.

[0057] Reference Figures 6-8 As shown, the slots 32 are symmetrically arranged around the centerline of the outer surface of the base, and the outer surface of the base also has channels 38 communicating with the slots 32. When installing and fixing the capacitor, the base 30 mainly bears the weight on the half where the fourth support block 36 is located. Therefore, this design balances the structural strength and overall weight of the capacitor fixing plate. By setting slots and grooves, materials can be reduced and weight can be lightened without affecting the overall strength of the capacitor fixing plate. At the same time, the exposed area of ​​the capacitor can be increased, thereby improving the heat dissipation effect. In some embodiments, the base 30 is also provided with a groove 39, which 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 base, and the fourth support block 36.

[0058] It is understood that the above description is a further detailed explanation of the present invention in conjunction with specific / preferred embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the inventive concept, and all such substitutions or modifications should be considered within the scope of protection of this patent. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention.

[0059] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of different embodiments or examples, 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 modifications can be made herein without departing from the scope defined by the appended claims.

[0060] Furthermore, the scope of this invention is not intended to be limited to the specific embodiments of the processes, machines, manufactures, material compositions, means, methods, and steps described in the specification. Those skilled in the art will readily understand that existing or later-developed disclosures, processes, machines, manufactures, material compositions, means, methods, or steps that perform substantially the same function as the corresponding embodiments described herein or obtain substantially the same results as the embodiments described herein can be utilized. Therefore, the appended claims are intended to include such processes, machines, manufactures, material compositions, means, methods, or steps within their scope.

Claims

1. A vehicle-mounted horizontal electrolytic capacitor, characterized in that: The capacitor includes a capacitor body, a capacitor base plate fitted onto the head of the capacitor body, and a capacitor mounting base installed at the tail of the capacitor body. The capacitor body includes an aluminum shell, a core package encapsulated within the aluminum shell, and a capacitor cover plate for encapsulating the core package within the aluminum shell. The capacitor cover plate is provided with lead-out terminals, each lead-out terminal including an extension portion extending perpendicularly to the capacitor cover plate, a bent portion bending at the end of the extension portion, and a welded portion extending perpendicularly from the end of the bent portion. The welded portion bends towards the center of the capacitor cover plate, and the extension trajectory of the welded portion is orthogonal to the central axis of the capacitor body. The capacitor base plate includes a base plate body, which is provided with a slot that mates with the extension portion of the lead-out terminals, a terminal guide groove that accommodates the bent portion of the lead-out terminals, and a terminal welding placement groove that places the welded portion of the lead-out terminals. The capacitor mounting base is provided with a receiving space to accommodate the tail of the capacitor body.

2. The vehicle-mounted horizontal electrolytic capacitor as described in claim 1, characterized in that: The plane defined by the welded portion and the bent portion is parallel to the plane where the capacitor cover plate is located.

3. The vehicle-mounted horizontal electrolytic capacitor as described in claim 1, characterized in that: The lead-out terminal passes through a slot on the base plate body, and the length of the extension of the lead-out terminal is greater than or equal to the thickness of the base plate body.

4. The vehicle-mounted horizontal electrolytic capacitor as described in claim 1, characterized in that: The bent portion of the lead-out terminal is placed in the terminal guide groove, and the shape and size of the bent portion are adapted to the guide groove.

5. The vehicle-mounted horizontal electrolytic capacitor as described in claim 1, characterized in that: The surface of the bent portion of the lead-out terminal is flush with the outer surface of the base plate body.

6. The vehicle-mounted horizontal electrolytic capacitor as described in claim 1, characterized in that: There are two slots on the main body of the base plate, and the lead-out terminals include a positive lead-out terminal and a negative lead-out terminal.

7. The vehicle-mounted horizontal electrolytic capacitor as described in claim 6, characterized in that: The distance between the two slots is equal to the distance between the positive terminal and the negative terminal.

8. The vehicle-mounted horizontal electrolytic capacitor as described in claim 6, characterized in that: The width of the terminal guide groove is set to match the diameter of the positive and negative leads.

9. The vehicle-mounted horizontal electrolytic capacitor as described in claim 1, characterized in that: The inner and outer surfaces of the seat plate body are parallel to each other, and the inner surface of the seat plate body is configured to fit the shape of the capacitor cover plate.

10. The vehicle-mounted horizontal electrolytic capacitor as described in claim 1, characterized in that: A plurality of support arms are vertically extended along the periphery of the inner surface of the seat plate body, and the inner sides of the plurality of support arms together form a cavity for accommodating the head of the capacitor body.

11. The vehicle-mounted horizontal electrolytic capacitor as described in claim 10, characterized in that: The plurality of support arms includes a first support arm, a second support arm, a third support arm, and a fourth support arm; wherein the second support arm is provided with the slot between itself and the first and third support arms.

12. The vehicle-mounted horizontal electrolytic capacitor as described in claim 1, characterized in that: The capacitor mounting base includes a base body and a plurality of support blocks perpendicular to the inner surface of the base body at its periphery. The inner sides of the plurality of support blocks together form a receiving space for accommodating the tail portion of the capacitor body.

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