A combined capacitor

Abstract

The utility model discloses a combined capacitor, including a plurality of capacitor body and first conductive plate, first conductive plate includes first vertical section and first bending section, and the at least one end of first vertical section is provided with first bending section, be equipped with a plurality of first connecting portion on first conductive plate, a plurality of first connecting portion is distributed in the first direction symmetry, and first radiating interval is formed to interval up and down, and capacitor body is electrically connected with first connecting portion. When capacitor assembly, can be actual space, through interval's first connecting portion, install capacitor main part in first vertical section and first bending section. The interval between two first connecting portions can assist heat dissipation, and the heat dissipation effect is improved. The bending structure breaks the traditional plane limit, and makes different size capacitor vertical distribution or transverse distribution at bending section, utilizes three -dimensional space to reduce plane occupation, is applicable to the scene of strict volume requirement, and improves product use range.

Description

Technical Field

[0001] This utility model relates to the field of capacitors, and more particularly to a combined capacitor. Background Technology

[0002] Currently, commercially available modular capacitors are typically assembled by integrating multiple capacitors onto a single circuit board (PCB), with conductive paths formed by etching copper foil to achieve electrical connections. However, PCB integration lays out multiple capacitors in a "laid-out" layout based on their dimensions and electrical spacing, making compact arrangement difficult. This results in wasted spacing, a larger overall chassis size, and significantly limits their application. Furthermore, the copper foil conductors and multi-layer wiring significantly increase the PCB's thermal resistance, making it difficult for the heat generated by the capacitors during operation to be quickly conducted to the heatsink, leading to poor heat dissipation. Summary of the Invention

[0003] In order to overcome at least one of the defects of the prior art, the present invention provides a combined capacitor, which connects capacitors by setting multiple connecting parts at intervals on a conductive plate, so that a certain heat dissipation interval is formed between each capacitor, resulting in good heat dissipation effect. At the same time, since the conductive plate is provided with a bending part, the capacitor layout is more flexible and the volume of the entire capacitor structure is reduced.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A combined capacitor includes multiple capacitor bodies and a first conductive plate; the first conductive plate includes a first vertical section and a first bent section, and at least one end of the first vertical section is provided with the first bent section.

[0006] The first conductive plate is provided with a plurality of first connecting parts, which are symmetrically distributed in a first direction and are spaced vertically to form a first heat dissipation interval; the capacitor body is electrically connected to the first connecting parts.

[0007] Furthermore, it also includes a second conductive plate, which is spaced apart from the first conductive plate; the second conductive plate includes a second vertical section and a second bent section, and at least one end of the second vertical section is provided with the second bent section;

[0008] The second conductive plate is provided with a plurality of second connecting parts, which are symmetrically distributed in the first direction and are spaced vertically to form a second heat dissipation interval; the capacitor body is electrically connected to the second connecting parts.

[0009] Furthermore, both ends of the first vertical segment are provided with the first bending segment, and the two first bending segments have opposite bends;

[0010] Both ends of the two second vertical segments are provided with second bending segments, the two second bending segments have the same bending direction, and at least one of the second bending segments has the same extension direction as one of the first bending segments.

[0011] Furthermore, it also includes a third conductive plate, which is spaced apart from the first conductive plate and the second conductive plate;

[0012] The third conductive plate is provided with a plurality of third connecting parts, which are spaced apart to form a third heat dissipation interval; the capacitor body is electrically connected to the third connecting parts.

[0013] Furthermore, the first connecting part includes a first plug-in part, the first plug-in part includes three first plug interfaces, the three first plug interfaces are arranged side by side and spaced apart; each first vertical segment has two first plug-in parts distributed vertically at intervals, and each first plug-in part is electrically connected to the capacitor body.

[0014] Furthermore, the second connecting part includes a second plug-in part, the second plug-in part includes three second plug interfaces, the three second plug interfaces are arranged side by side and spaced apart, each second vertical segment has two second plug-in parts distributed vertically at intervals, and each second plug-in part is electrically connected to the capacitor body;

[0015] One of the second plug-in portions is disposed opposite to one of the first plug-in portions in a second direction.

[0016] Furthermore, the third connection part includes a third plug-in part, the third plug-in part includes three third plug interfaces, the three third plug interfaces are arranged side by side and spaced apart, adjacent third plug-in parts are spaced apart, and each third plug-in part is electrically connected to the capacitor body;

[0017] At least one of the third plug-in portions is disposed opposite to at least one first plug-in portion in the first direction; at least one third plug-in portion is disposed opposite to at least one second plug-in portion in the first direction.

[0018] Furthermore, each of the first conductive plate, the second conductive plate, and the third conductive plate is provided with at least one fourth connecting part, which is connected to an external structure.

[0019] Furthermore, the fourth connecting portion includes a protrusion and a mounting hole, the mounting hole being located within the protrusion.

[0020] Furthermore, the first conductive plate, the second conductive plate, and the third conductive plate are copper plates.

[0021] In summary, the combined capacitor provided by this utility model has the following technical effects: When assembling the capacitor, the capacitor body can be installed on the first vertical section and the first bent section respectively through the first connecting parts set at intervals, according to the actual assembly space, so as to dissipate heat from the capacitor body through the interval between the first connecting parts and improve the heat dissipation effect of the entire structure.

[0022] Furthermore, the bending structure of the first bending section relative to the first vertical section breaks the limitations of traditional planar layouts. Capacitor bodies of different sizes can be vertically spaced along a direction perpendicular to the first direction (such as the length of the vertical section), or directly mounted horizontally on the surface of the bending section, making full use of three-dimensional space resources. This layout significantly reduces the planar area occupied, resulting in a substantial reduction in the overall chassis size, making it suitable for applications with stringent requirements on equipment size and indirectly expanding the product's applicability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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 schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0026] Figure 3 This is a schematic diagram showing the arrangement of the first conductive plate, the second conductive plate, and the third conductive plate in this utility model.

[0027] The meanings of the reference numerals in the attached figures are as follows:

[0028] 10. Capacitor body; 20. First conductive plate; 21. First vertical section; 22. First bent section; 23. First connecting part; 231. First plug-in part; 30. Second conductive plate; 31. Second vertical section; 32. Second bent section; 33. Second connecting part; 331. Second plug-in part; 40. Third conductive plate; 41. Third connecting part; 431. Third plug-in part; 50. Fourth connecting part; 51. Protrusion; 52. Mounting hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0031] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0032] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0033] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0034] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0035] See Figures 1 to 3This utility model discloses a combined capacitor, including multiple capacitor bodies 10 and a first conductive plate 20. The first conductive plate 20 includes a first vertical section 21 and a first bent section 22. At least one end of the first vertical section 21 is provided with the first bent section 22. The first conductive plate 20 is provided with multiple first connecting parts 23, which are symmetrically distributed in a first direction and form a first heat dissipation interval by vertical spacing. The capacitor bodies 10 are electrically connected to the first connecting parts 23.

[0036] Based on the above structure, taking the length direction (i.e., the vertical direction) of the first vertical segment 21 as an example, the first bending segment 22 can be bent along the width direction of the first vertical segment 21. During installation, some capacitor bodies 10 are connected through multiple first connecting parts 23 symmetrically distributed on the first vertical segment 21 and arranged vertically along the length direction of the first vertical segment 21. This transforms the spacing required for horizontal arrangement in the plane into vertical spacing. The remaining capacitor bodies 10 or electrical components are staggered in the horizontal direction (X / Y axis) by utilizing the characteristic of the first bending segment 22 bending along the width direction of the first vertical segment 21. For example, for two capacitors stacked vertically in the first direction, their corresponding first bending segments 22 can extend towards the left and right sides of the first vertical segment 21 to connect circuits in different areas, avoiding the problem of "side-by-side occupation" in the plane and greatly improving space utilization efficiency.

[0037] Furthermore, the vertically adjacent capacitor bodies 10 are spaced apart to form a first heat dissipation gap, which not only aids in heat dissipation but also meets electrical spacing requirements. Compared to traditional layouts where electrical spacing occupies effective horizontal space, this solution eliminates the need for horizontal spacing, further freeing up planar space. Simultaneously, multiple capacitors are connected via the same first vertical section 21 and first bent section 22, with the first conductive plate 20 serving as a shared electrical channel. This replaces the copper foil conductors etched individually for each capacitor in traditional PCBs, reducing the space occupied by the conductors on the plane and significantly reducing the overall space occupied by the assembled capacitors.

[0038] In this embodiment, the capacitor bodies 10 are spaced vertically apart, eliminating the need for horizontal spacing and thus freeing up planar space. Furthermore, multiple capacitors are connected via the same first vertical section 21 and first bent section 22, with the first conductive plate 20 serving as a shared electrical channel. This eliminates the need to reserve wire space for each capacitor individually, effectively reducing the space occupied by planar wiring and resulting in a smaller space occupied by the assembled capacitors.

[0039] More specifically, the first bending segment 22 possesses high flexibility, allowing for adjustments to the bending direction based on the actual needs of the installation scenario. When multiple components are located to the right of the first vertical segment 21, the first bending segment 22 is configured to bend in the opposite direction to these components, effectively avoiding other components and preventing spatial conflicts and electrical interference. This adjustability enables the combined capacitor to adapt to different space constraints and circuit connection requirements by changing the direction of the bending segment, achieving flexible layout when facing complex installation environments and diverse circuit layout needs.

[0040] It should be noted that the first bending segment 22 in this embodiment can be set to one, two or more, depending on the actual assembly requirements of the capacitor. The specific adjustment can be made according to the actual usage requirements.

[0041] Additionally, the first connecting part 23 can be provided with a socket, bayonet, or connecting hole on the first vertical section 21 or the first bent section 22, allowing the capacitor leads to be inserted into the first connecting part 23 and then electrically connected by soldering. Since the first connecting parts 23 are spaced apart, after installation, adjacent capacitor bodies 10 form a heat dissipation gap, creating an airflow path. During operation, the heat generated by the capacitor heats the surrounding air; the hot air rises and cool air replenishes it, forming natural convection, accelerating heat dissipation and improving the heat dissipation effect.

[0042] Furthermore, the first conductive plate 20 can be made of conductive and thermally conductive media such as copper or aluminum. By using the first conductive plate 20 as a high thermal conductivity medium, when the heat of the capacitor body 10 is transferred to the first conductive plate 20 through the pins, it can be quickly conducted to the heat sink or chassis through the first vertical section 21 and the first bent section 22 of the first conductive plate 20. Compared with traditional PCB planar wiring, the heat conduction path is shortened and the thermal resistance is reduced.

[0043] Preferably, in this embodiment, the first conductive plate 20, the second conductive plate 30, and the third conductive plate 40 are copper plates.

[0044] Furthermore, it also includes a second conductive plate 30, which is spaced apart from the first conductive plate 20; the second conductive plate 30 includes a second vertical section 31 and a second bent section 32, at least one end of the second vertical section 31 is provided with the second bent section 32; the second conductive plate 30 is provided with a plurality of second connecting portions 33, which are symmetrically distributed in a first direction and are spaced vertically to form a second heat dissipation interval; the capacitor body 10 is electrically connected to the second connecting portions 33.

[0045] Based on this structure, the capacitor body 10 can be simultaneously mounted on both the first conductive plate 20 and the second conductive plate 30. Multiple second connecting portions 33 are spaced apart on the second conductive plate 30 to mount the capacitor body 10, allowing it to be mounted on both the first and second conductive plates simultaneously. This ensures that the current is evenly distributed between the first and second conductive plates during operation, preventing localized heating or resistance surges caused by single-plate overload. For example, in high-frequency power supply circuits, dual-plate current shunt can reduce the current density of individual connecting portions, decrease power loss, and improve the long-term operational stability of the circuit.

[0046] Furthermore, in its specific configuration, both the second vertical segment 31 and the first vertical segment 21 extend along the first direction and are parallel and spaced apart, providing a dual-track mounting path for the capacitors in the vertical direction. Compared to the traditional planar layout, this design allows the capacitors to be compactly stacked in the vertical direction, transforming the spacing originally occupied on the horizontal plane into stacking space in the vertical direction. Within a limited chassis height, the number of capacitors can be increased through the parallel double-plate structure, significantly improving the capacitance per unit volume.

[0047] Meanwhile, the second bending segment 32 is arranged parallel to and spaced apart from the first bending segment 22, and is staggered in the horizontal direction. When the first bending segment 22 extends in a certain direction to connect the circuit, the second bending segment 32 can extend in the opposite direction or laterally, avoiding spatial conflicts with other components on the horizontal plane. This design makes full use of the planar space that would otherwise be wasted due to avoidance requirements, and realizes flexible wiring in three-dimensional space.

[0048] More specifically, both ends of the first vertical segment 21 are provided with a first bending segment 22. The two first bending segments 22 bend in opposite directions and can be connected to circuit areas with different potentials or functions respectively. For example, one end is connected to the positive terminal of the power supply and the other end is connected to the negative terminal to avoid cross-interference of wires.

[0049] The two ends of the second vertical segment 31 are bent in the same direction and are partially in the same direction as the first bent segment 22, so that the first conductive plate 20 and the second conductive plate 30 can independently undertake the task of circuit connection, and can also realize the parallel or series connection of local circuits through the bent segments in the same direction, flexibly adapting to the needs of complex circuit topologies.

[0050] Furthermore, it also includes a third conductive plate 40, which is spaced apart from the first conductive plate 20 and the second conductive plate 30; the third conductive plate 40 is provided with a plurality of third connecting portions 41, which are spaced apart and form a third heat dissipation interval; the capacitor body 10 is electrically connected to the third connecting portions 41.

[0051] Specifically, the addition of the third conductive plate 40 forms a three-path electrical connection, further distributing the current load compared to a two-plate structure. For example, in a high-current energy storage system, the three conductive plates can evenly distribute the current, significantly reducing heat generation and losses. Furthermore, if any conductive plate or connection fails, the remaining two plates can still maintain system operation, significantly enhancing reliability.

[0052] Specifically, the third conductive plate 40 can be arranged parallel to and spaced apart from the first vertical segment 21 or the second vertical segment 31 along the first direction, or it can be arranged parallel to and spaced apart at the bottom of the first bending segment 22 or the second bend, depending on the actual needs.

[0053] Furthermore, the first connecting part 23 includes a first plug-in part 231, which includes three first plug interfaces arranged side by side and spaced apart. Each first vertical segment 21 has two first plug-in parts 231 distributed vertically and vertically, and each first plug-in part 231 is electrically connected to the capacitor body 10.

[0054] Specifically, different pins of the capacitor body 10 (such as positive, negative, and ground terminals) can be connected simultaneously through the three first connectors, or connected in parallel to the same polarity pin to achieve current shunting, thereby reducing the risk of overheating and oxidation caused by overcurrent and improving the long-term stability of the connection parts.

[0055] Furthermore, if one connector is damaged by external force or has poor contact, the other two connectors will still maintain circuit continuity. This redundancy design improves connection reliability and avoids system failure due to a single point of failure.

[0056] Similarly, the second connection part 33 includes a second plug-in part 331, which includes three second plug-in interfaces. The three second plug-in interfaces are arranged side by side and spaced apart. Each second vertical segment 31 has two second plug-in parts 331 distributed vertically and vertically. Each second plug-in part 331 is electrically connected to the capacitor body 10. Different pins of the capacitor body 10 (such as positive, negative, and ground terminals) can be connected simultaneously through the three second plug-in interfaces, or the same polarity pin can be connected in parallel to achieve current shunting, thereby reducing the risk of overheating and oxidation caused by overcurrent and improving the long-term stability of the connection part.

[0057] Furthermore, one of the second plug-in portions 331 and one of the first plug-in portions 231 are arranged opposite each other in the second direction (the horizontal direction perpendicular to the first direction). During assembly, the pins of the same capacitor body 10 can be connected in parallel through the oppositely arranged first and second plug-in portions, so that the first plug-in portion 231 and the second plug-in portion 331 share the current, thereby improving the current carrying capacity, reducing heat generation and contact resistance, and indirectly extending the connection life.

[0058] Furthermore, the two opposing first plug-in portions 231 and second plug-in portions 331 form a symmetrical structure in the second direction, allowing the capacitors to be three-dimensionally mounted in the direction perpendicular to the first vertical segment 21 (the second direction), transforming the planar layout into three-dimensional space utilization. For example, inside a square chassis, the opposing plug-in portions allow the capacitors to be stacked in a "cross" arrangement, which saves more space compared to the traditional planar arrangement.

[0059] Furthermore, the third connection portion 41 includes a third plug portion 431, which includes three third plug interfaces arranged side by side and spaced apart. Adjacent third plug portions 431 are spaced apart, and each third plug portion 431 is electrically connected to the capacitor body 10. At least one third plug portion 431 is arranged opposite to at least one first plug portion 231 in a first direction. At least one third plug portion 431 is arranged opposite to at least one second plug portion 331 in a first direction.

[0060] Based on this, during assembly, the pins of the same capacitor body 10 can be connected in parallel through the third plug-in portion 431 and the first plug-in portion 231, which are arranged opposite to each other in the first direction, so that the current is shared by the first plug-in portion 231 and the third plug-in portion 431, thereby improving the current carrying capacity. Similarly, the pins of the same capacitor body 10 can also be connected in parallel through the third plug-in portion 431 and the second plug-in portion 331, which are arranged opposite to each other in the first direction, so that the current is shared by the first plug-in portion 231 and the third plug-in portion 431.

[0061] In this way, each connector can serve as an independent electrical path. When any path fails due to vibration, corrosion, or other reasons, the other paths can still maintain system operation, reducing the probability of single-point failure and improving the reliability of the entire electrical structure.

[0062] Furthermore, each of the first conductive plate 20, the second conductive plate 30, and the third conductive plate 40 is provided with at least one fourth connecting part 50. The fourth connecting part 50 is connected to an external structure so as to serve as an interface between the conductive plate and external electrical components. Electrical components such as rectifier bridges, fuses, or terminals can be connected to adapt to diverse circuit requirements by connecting different electrical components.

[0063] It should be noted that the fourth connecting part 50 can be a welding hole, threaded hole, or bayonet structure provided on the first conductive plate 20, the second conductive plate 30, and the third conductive plate 40. The specific configuration can be based on the components that need to be connected.

[0064] Preferably, the fourth connecting portion 50 includes a protrusion 51 and a mounting hole 52. The mounting hole 52 is located at the center of the protrusion 51. When the electrical component is connected to each conductive plate via a connector (such as a screw or bolt), the connector passes through the mounting hole 52 and is tightened. At this time, the annular plane (not the entire plane) of the protrusion 51 is in close contact with the connecting surface of the electrical component. In this way, the effective contact area between the electrical component and the conductive plate can be increased, and the electrical connection performance can be improved.

[0065] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A combined capacitor, characterized in that, include: Multiple capacitor bodies and a first conductive plate; the first conductive plate includes a first vertical section and a first bent section, and at least one end of the first vertical section is provided with the first bent section; The first conductive plate is provided with a plurality of first connecting parts, which are symmetrically distributed in a first direction and are spaced vertically to form a first heat dissipation interval; the capacitor body is electrically connected to the first connecting parts.

2. The combined capacitor as described in claim 1, characterized in that, It also includes a second conductive plate, which is spaced apart from the first conductive plate; the second conductive plate includes a second vertical section and a second bent section, and at least one end of the second vertical section is provided with the second bent section; The second conductive plate is provided with a plurality of second connecting parts, which are symmetrically distributed in the first direction and are spaced vertically to form a second heat dissipation interval; the capacitor body is electrically connected to the second connecting parts.

3. The combined capacitor as described in claim 2, characterized in that, Both ends of the first vertical segment are provided with the first bending segment, and the two first bending segments have opposite bends; Both ends of the two second vertical segments are provided with second bending segments, the two second bending segments have the same bending direction, and at least one of the second bending segments has the same extension direction as one of the first bending segments.

4. The combined capacitor as described in claim 3, characterized in that, It also includes a third conductive plate, which is spaced apart from the first conductive plate and the second conductive plate; The third conductive plate is provided with a plurality of third connecting parts, which are spaced apart to form a third heat dissipation interval; the capacitor body is electrically connected to the third connecting parts.

5. The combined capacitor as described in claim 4, characterized in that, The first connecting part includes a first plug-in part, which includes three first plug interfaces arranged side by side and spaced apart; each first vertical segment has two first plug-in parts distributed vertically at intervals, and each first plug-in part is electrically connected to the capacitor body.

6. The combined capacitor as described in claim 5, characterized in that, The second connection part includes a second plug-in part, which includes three second plug interfaces. The three second plug interfaces are arranged side by side and spaced apart. Each second vertical segment has two second plug-in parts distributed vertically at intervals. Each second plug-in part is electrically connected to the capacitor body. One of the second plug-in portions is disposed opposite to one of the first plug-in portions in a second direction.

7. The combined capacitor as described in claim 6, characterized in that, The third connection part includes a third plug-in part, which includes three third plug-in interfaces. The three third plug-in interfaces are arranged side by side and spaced apart. Adjacent third plug-in parts are spaced apart. Each third plug-in part is electrically connected to the capacitor body. At least one of the third plug-in portions is disposed opposite to at least one first plug-in portion in the first direction; at least one third plug-in portion is disposed opposite to at least one second plug-in portion in the first direction.

8. The combined capacitor as described in any one of claims 4-7, characterized in that, Each of the first conductive plate, the second conductive plate, and the third conductive plate is provided with at least one fourth connecting part, which is connected to an external structure.

9. The combined capacitor as described in claim 8, characterized in that, The fourth connecting portion includes a protrusion and a mounting hole, the mounting hole being located within the protrusion.

10. The combined capacitor as described in any one of claims 4-7, characterized in that, The first conductive plate, the second conductive plate, and the third conductive plate are copper plates.

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