A copper bar cooled capacitor

Abstract

The utility model discloses a copper bar cooling capacitor, include: shell, conducting part and capacitor core, and conducting part and capacitor core are fixed in the shell, conducting part includes first conducting block and second conducting block, and first conducting block includes first connecting end, first epitaxial end and heat conduction block, and first epitaxial end is connected with first connecting end through heat conduction block, heat conduction block includes heat dissipation block and connecting block, and connecting block is connected with capacitor core contact, and heat dissipation block extends to the edge position of shell, and second conducting block includes second connecting end and second epitaxial end, and first connecting end is connected with one end of capacitor core, and second connecting end is connected with the other end of capacitor core. Through setting shell and conducting part, first conducting block can contact with capacitor core through first connecting end and connecting block, and the heat generated by capacitor core is quickly transmitted to heat dissipation block, to reach the effect of quick heat dissipation, improve the heat dissipation performance of copper bar cooling capacitor, simplify the structure of copper bar cooling capacitor.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, and in particular to a copper busbar cooling capacitor. Background Technology

[0002] Film capacitors are capacitors constructed by overlapping metal foil as electrodes with plastic films such as polyethylene, polypropylene, polystyrene, or polycarbonate at both ends and then winding them into a cylindrical shape. During long-term operation, capacitors generate significant heat due to factors such as increased dielectric loss, aging, partial discharge, or overvoltage, leading to severe overheating and affecting performance. In existing technologies, film capacitors have heat dissipation devices connected to the capacitor core on the casing to quickly transfer heat from the capacitor's interior to the exterior, achieving rapid heat dissipation and ensuring normal operation. However, the heat dissipation device and the casing are made of different materials. In high-temperature environments, due to the difference in their coefficients of thermal expansion, the heat dissipation device may detach from the casing due to vibration. Furthermore, the additional heat dissipation device not only increases the manufacturing process but also complicates the structure, increasing production costs. Summary of the Invention

[0003] This application provides a copper busbar cooled capacitor, which simplifies the capacitor structure, ensures the heat dissipation performance of the copper busbar cooled capacitor, and reduces the production cost of film capacitors.

[0004] An embodiment of this application provides a copper busbar cooled capacitor, comprising: a housing, a conductive portion, and a capacitor core, wherein the conductive portion and the capacitor core are fixed within the housing; the conductive portion includes a first conductive block and a second conductive block, the first conductive block including a first connecting end, a first extended end, and a heat-conducting block, the first extended end being connected to the first connecting end via the heat-conducting block; the heat-conducting block including a heat dissipation block and a connecting block, the connecting block being in contact with the capacitor core, the heat dissipation block extending to the edge of the housing; the second conductive block including a second connecting end and a second extended end; the first connecting end being connected to one end of the capacitor core, the second connecting end being connected to the other end of the capacitor core; the first extended end and the second extended end extending outside the housing.

[0005] The copper busbar cooling capacitor of this application embodiment has at least the following beneficial effects: by providing a shell and a conductive part, the first conductive block can contact the capacitor core through the first connecting end and the connecting block, and quickly transfer the heat generated by the capacitor core to the heat sink to achieve a rapid heat dissipation effect, improve the heat dissipation performance of the copper busbar cooling capacitor, and simplify the structure of the copper busbar cooling capacitor; by providing a conductive part and a capacitor core, the two ends of the capacitor core are respectively led to the first extension end and the second extension end through the first conductive block and the second conductive block, so as to facilitate the connection of the capacitor core to external devices and improve the installation convenience of the copper busbar cooling capacitor.

[0006] In some embodiments, the housing has a cavity for accommodating the capacitor core and the conductive part, and the upper end of the heat sink is flush with the upper end of the cavity. By providing the cavity, the connection stability between the conductive part and the capacitor core and the housing is ensured, preventing the conductive part and the capacitor core from becoming loose during use, and improving the structural stability of the copper busbar cooling capacitor. The fact that the upper end of the heat sink is flush with the upper end of the cavity facilitates connection of the heat sink to external heat dissipation equipment, improving the heat dissipation efficiency of the copper busbar cooling capacitor.

[0007] In some embodiments, the plane containing the heat sink is parallel to the opening of the cavity. This structure increases the contact area between the heat sink and external heat dissipation equipment, accelerates heat transfer, and ensures the heat dissipation efficiency of the copper busbar cooling capacitor.

[0008] In some embodiments, the cavity is provided with a support bar for supporting the second connection end and a fixing bar for fixing the capacitor core; the support bars are distributed perpendicularly to each other at the bottom of the cavity, and the fixing bars are located on the inner wall surface of the cavity. By providing support bars and fixing bars, the capacitor core can be stably fixed in the cavity, improving the structural stability of the copper busbar cooling capacitor.

[0009] In some embodiments, a heat dissipation space is formed between the heat sink and the capacitor core; the lower end of the connecting block is attached to the upper end of the capacitor core. By providing a heat dissipation space, the heat sink can protrude upwards, increasing the contact area between the heat sink and the outside, and improving the heat dissipation efficiency of the copper busbar cooling capacitor.

[0010] In some embodiments, the plane containing the heat sink is parallel to the plane containing the connecting block. This structure increases the contact area between the connecting block and the capacitor core, as well as the contact area between the heat sink and the outside, ensuring the heat dissipation efficiency of the copper busbar cooling capacitor.

[0011] In some embodiments, the connection point between the heat sink and the connecting block is located between adjacent capacitor cores. This structure ensures that the first conductive block can stably connect to the upper end of the adjacent capacitor core, and also ensures that the capacitor core can be connected to the heat sink through the connecting block or the first connecting end, thereby improving the heat dissipation efficiency of the copper busbar cooling capacitor.

[0012] In some embodiments, the side of the housing is provided with a mounting block, and the mounting block has mounting holes. By providing mounting blocks and mounting holes, the housing can be quickly and accurately installed onto external devices, improving the ease of installation of the copper busbar cooling capacitor.

[0013] In some embodiments, an insulating sheet is provided between the first epitaxial end and the second epitaxial end. By providing the insulating sheet, short circuits caused by contact between the first conductive block and the second conductive block are avoided, thereby improving the safety and stability of the copper busbar cooling capacitor.

[0014] In some embodiments, both the first epitaxial end and the second epitaxial end are provided with through holes. By providing through holes, the two ends of the capacitor core can be stably mounted to the electrical equipment through the first epitaxial end and the second epitaxial end, avoiding the first epitaxial end and the second epitaxial end from the electrical equipment and improving the working stability of the copper busbar cooling capacitor.

[0015] An embodiment of this application discloses a copper busbar cooling capacitor. By providing a casing and conductive parts, a first conductive block can contact the capacitor core through a first connecting end and a connecting block, rapidly transferring the heat generated by the capacitor core to a heat sink to achieve rapid heat dissipation, thereby improving the heat dissipation performance of the copper busbar cooling capacitor and simplifying its structure. By providing conductive parts and a capacitor core, the two ends of the capacitor core are respectively connected to a first extended end and a second extended end through a first conductive block and a second conductive block, facilitating connection of the capacitor core to external devices and improving the installation convenience of the copper busbar cooling capacitor. By providing support bars and fixing bars, the capacitor... The core can be stably fixed in the cavity, improving the structural stability of the copper busbar cooling capacitor; by setting a heat dissipation space, the heat sink can be raised upward, increasing the contact area between the heat sink and the outside, thus improving the heat dissipation efficiency of the copper busbar cooling capacitor; by setting mounting blocks and mounting holes, the outer casing can be quickly and accurately installed onto external equipment, improving the installation convenience of the copper busbar cooling capacitor; by setting through holes, the two ends of the capacitor core can be stably installed onto the electrical equipment through the first and second extended ends, preventing the first and second extended ends from becoming loose from the electrical equipment, thus improving the working stability of the copper busbar cooling capacitor.

[0016] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a copper busbar cooling capacitor according to an embodiment of the present invention; Figure 2 This is an exploded view of the structure of a copper busbar cooling capacitor according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of a copper busbar cooling capacitor according to an embodiment of the present invention. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] Reference Figures 1 to 3 This utility model provides a copper busbar cooling capacitor, including: a housing 100, a conductive part 200, and a capacitor core 300, wherein the conductive part 200 and the capacitor core 300 are fixed inside the housing 100; the conductive part 200 includes a first conductive block 210 and a second conductive block 220, the first conductive block 210 including a first connecting end 211, a first extended end 212, and a heat-conducting block 230, the first extended end 212 being connected to the first connecting end 211 through the heat-conducting block 230; The heat block 230 includes a heat sink 231 and a connecting block 232. The connecting block 232 is in contact with the capacitor core 300, and the heat sink 231 extends to the edge of the outer casing 100. The second conductive block 220 includes a second connecting end 221 and a second extended end 222. The first connecting end 211 is connected to one end of the capacitor core 300, and the second connecting end 221 is connected to the other end of the capacitor core 300. The first extended end 212 and the second extended end 222 extend outside the outer casing 100.

[0020] By setting the outer casing 100 and the conductive part 200, the first conductive block 210 can contact the capacitor core 300 through the first connecting end 211 and the connecting block 232, and quickly transfer the heat generated by the capacitor core 300 to the heat sink 231 to achieve rapid heat dissipation, improve the heat dissipation performance of the copper busbar cooling capacitor, and simplify the structure of the copper busbar cooling capacitor; by setting the conductive part 200 and the capacitor core 300, the two ends of the capacitor core 300 are respectively led to the first extension end 212 and the second extension end 222 through the first conductive block 210 and the second conductive block 220, so as to facilitate the connection of the capacitor core 300 to external devices and improve the installation convenience of the copper busbar cooling capacitor.

[0021] In some embodiments, the housing 100 has a cavity 110 for accommodating the capacitor core 300 and the conductive part 200, and the upper end of the heat sink 231 is flush with the upper end of the cavity 110. By providing the cavity 110, the connection stability between the conductive part 200 and the capacitor core 300 and the housing 100 is ensured, preventing the conductive part 200 and the capacitor core 300 from becoming loose during use, thus improving the structural stability of the copper busbar cooling capacitor. The fact that the upper end of the heat sink 231 is flush with the upper end of the cavity 110 facilitates connection of the heat sink 231 to external heat dissipation equipment, improving the heat dissipation efficiency of the copper busbar cooling capacitor.

[0022] In some embodiments, the plane containing the heat sink 231 is parallel to the opening of the cavity 110. This structure increases the contact area between the heat sink 231 and the external heat dissipation device, accelerates heat transfer, and ensures the heat dissipation efficiency of the copper busbar cooling capacitor.

[0023] In some embodiments, the cavity 110 is provided with a support bar 111 for supporting the second connection end 221 and a fixing bar 112 for fixing the capacitor core 300; the support bars 111 are distributed perpendicularly to each other at the bottom of the cavity 110, and the fixing bar 112 is located on the inner wall surface of the cavity 110. By providing the support bar 111 and the fixing bar 112, the capacitor core 300 can be stably fixed in the cavity 110, thereby improving the structural stability of the copper busbar cooling capacitor.

[0024] In some embodiments, a heat dissipation space 240 is formed between the heat sink 231 and the capacitor core 300; the lower end of the connecting block 232 is attached to the upper end of the capacitor core 300. By providing the heat dissipation space 240, the heat sink 231 can protrude upwards, increasing the contact area between the heat sink 231 and the outside, and improving the heat dissipation efficiency of the copper busbar cooling capacitor.

[0025] In some embodiments, the plane of the heat sink 231 is parallel to the plane of the connecting block 232. This structure increases the contact area between the connecting block 232 and the capacitor core 300, and also increases the contact area between the heat sink 231 and the outside, ensuring the heat dissipation efficiency of the copper busbar cooling capacitor.

[0026] In some embodiments, the connection point between the heat sink 231 and the connecting block 232 is located between adjacent capacitor cores 300. This structure ensures that the first conductive block 210 can stably connect to the upper end of the adjacent capacitor core 300, and also ensures that the capacitor core 300 can be connected to the heat sink 231 through the connecting block 232 or the first connecting end 211, thereby improving the heat dissipation efficiency of the copper busbar cooling capacitor.

[0027] In some embodiments, the housing 100 has a mounting block 120 on its side, and the mounting block 120 has a mounting hole 121. By providing the mounting block 120 and the mounting hole 121, the housing 100 can be quickly and accurately installed onto external devices, improving the installation convenience of the copper busbar cooling capacitor.

[0028] In some embodiments, an insulating sheet 250 is provided between the first epitaxial end 212 and the second epitaxial end 222. By providing the insulating sheet 250, short circuits caused by contact between the first conductive block 210 and the second conductive block 220 are avoided, thereby improving the safety and stability of the copper busbar cooling capacitor.

[0029] In some embodiments, through holes 260 are provided on both the first epitaxial end 212 and the second epitaxial end 222. By providing through holes 260, the two ends of the capacitor core 300 can be stably installed on the electrical equipment through the first epitaxial end 212 and the second epitaxial end 222, avoiding the first epitaxial end 212 and the second epitaxial end 222 from becoming loose from the electrical equipment, and improving the working stability of the copper busbar cooling capacitor.

[0030] In some embodiments, both the first conductive block 210 and the second conductive block 220 are made of copper busbars. Copper busbars have good electrical and thermal conductivity. Heat is dissipated directly by welding the copper busbars to the capacitor core 300, and heat can be directly conducted away from the heat source inside the outer casing 100, which can greatly improve the heat dissipation performance of the copper busbar cooling capacitor.

[0031] In the production process of the copper busbar cooling capacitor in this embodiment, firstly, according to the specifications of the capacitor core 300, a shell 100 and a conductive part 200 of corresponding size are selected. The shell 100 has a cavity 110, and the second conductive block 220, the capacitor core 300, and the first conductive block 210 are sequentially fixed within the cavity 110. The support bar 111 supports the second connecting end 221, and the capacitor core 300 is positioned between the fixing bars 112 on both sides. Specifically, the first connecting end 211 is connected to one end of the capacitor core 300, and the second connecting end 220... 21 is connected to the other end of the capacitor core 300; the first extended end 212 and the second extended end 222 extend to the outside of the outer casing 100; the plane where the heat sink 231 is located is parallel to the opening of the cavity 110, the upper end of the heat sink 231 is level with the upper end of the cavity 110, and a heat dissipation space 240 is formed between the heat sink 231 and the capacitor core 300; the connection position between the heat sink 231 and the connecting block 232 is located between adjacent capacitor cores 300; then, an insulating sheet 250 is provided between the first extended end 212 and the second extended end 222. The capacitor core 300 can be single or multiple. The first terminals of multiple capacitor cores 300 are connected to the first conductive block 210 via the first connecting terminal 211 or the connecting block 232. The second terminals of the capacitor cores 300 are connected to the second conductive block 220 via the second connecting terminal 221. Finally, the cavity 110 is injection molded or potted to fix the second conductive block 220, the capacitor core 300, and the first conductive block 210 within the cavity 110. This completes the production of the copper busbar cooling capacitor. The entire process is controllable and efficient, eliminating the need for external heat dissipation devices in traditional capacitor manufacturing, thus improving the production efficiency and reducing the production cost of the copper busbar cooling capacitor.

[0032] In the use of the copper busbar cooling capacitor in this embodiment, the outer casing 100 is fixed to the electrical equipment via the mounting block 120 and mounting hole 121, so that the heat sink 231 is connected to the heat dissipation device of the electrical equipment; the first extended end 212 and the second extended end 222 are connected to the electrical equipment via the through hole 260, so that both ends of the capacitor core 300 are connected to the electrical equipment. During the operation of the copper busbar cooling capacitor, the capacitor core 300 generates a large amount of heat. Since one end of the capacitor core 300 is connected to the first conductive block 210 via the first connecting end 211 or connecting block 232, the heat can be transferred to the heat sink 231 through the first connecting end 211 or connecting block 232, and diffused outward through the heat dissipation device of the electrical equipment, thereby achieving the effect of cooling the capacitor core 300, ensuring that the copper busbar cooling capacitor is at a normal operating temperature, avoiding overheating of the copper busbar cooling capacitor which would lead to performance degradation, and improving the working stability of the copper busbar cooling capacitor.

[0033] As can be seen from the above description, a copper busbar cooling capacitor according to an embodiment of this application, by setting a housing 100 and a conductive part 200, allows the first conductive block 210 to contact the capacitor core 300 through the first connecting end 211 and the connecting block 232, and quickly transfers the heat generated by the capacitor core 300 to the heat sink 231, thereby achieving rapid heat dissipation, improving the heat dissipation performance of the copper busbar cooling capacitor, and simplifying the structure of the copper busbar cooling capacitor; by setting the conductive part 200 and the capacitor core 300, the two ends of the capacitor core 300 are respectively led to the first extended end 212 and the second extended end 222 through the first conductive block 210 and the second conductive block 220, so as to facilitate the connection of the capacitor core 300 to external devices and improve the installation convenience of the copper busbar cooling capacitor; by setting the support bar 111 and The fixing strip 112 ensures that the capacitor core 300 can be stably fixed in the cavity 110, improving the structural stability of the copper busbar cooling capacitor. The heat dissipation space 240 ensures that the heat sink 231 can protrude upward, increasing the contact area between the heat sink 231 and the outside, and improving the heat dissipation efficiency of the copper busbar cooling capacitor. The mounting block 120 and mounting hole 121 facilitate the quick and accurate installation of the outer casing 100 onto external equipment, improving the installation convenience of the copper busbar cooling capacitor. The through hole 260 facilitates the stable installation of both ends of the capacitor core 300 onto the electrical equipment through the first extended end 212 and the second extended end 222, preventing the first extended end 212 and the second extended end 222 from becoming loose from the electrical equipment, and improving the working stability of the copper busbar cooling capacitor.

[0034] In the several embodiments provided in this application, it should be understood that the disclosed systems, instruments, and methods can be implemented in other ways. For example, the instrument embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between instruments or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0035] The above is a detailed description of the preferred embodiments of this application. However, this application is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A copper busbar cooled capacitor, characterized in that, include: The device comprises a housing, a conductive part, and a capacitor core, wherein the conductive part and the capacitor core are fixed within the housing; the conductive part includes a first conductive block and a second conductive block, the first conductive block including a first connecting end, a first extended end, and a heat-conducting block, the first extended end being connected to the first connecting end via the heat-conducting block; the heat-conducting block including a heat dissipation block and a connecting block, the connecting block being in contact with the capacitor core, the heat dissipation block extending to the edge of the housing; the second conductive block including a second connecting end and a second extended end; the first connecting end being connected to one end of the capacitor core, the second connecting end being connected to the other end of the capacitor core; the first extended end and the second extended end extending outside the housing.

2. The copper busbar cooling capacitor according to claim 1, characterized in that, The housing has a cavity for accommodating the capacitor core and the conductive part, and the upper end of the heat sink is flush with the upper end of the cavity.

3. A copper busbar cooling capacitor according to claim 2, characterized in that, The plane containing the heat sink is parallel to the opening of the cavity.

4. A copper busbar cooling capacitor according to claim 2, characterized in that, The cavity is provided with a support bar for supporting the second connection end and a fixing bar for fixing the capacitor core; the support bars are distributed perpendicularly to each other at the bottom of the cavity, and the fixing bar is located on the inner wall of the cavity.

5. A copper busbar cooling capacitor according to claim 1, characterized in that, A heat dissipation space is formed between the heat sink and the capacitor core; the lower end of the connecting block is attached to the upper end of the capacitor core.

6. A copper busbar cooling capacitor according to claim 5, characterized in that, The plane containing the heat sink is parallel to the plane containing the connecting block.

7. A copper busbar cooling capacitor according to claim 6, characterized in that, The connection point between the heat sink and the connecting block is located between adjacent capacitor cores.

8. A copper busbar cooling capacitor according to claim 1, characterized in that, The side of the outer casing is provided with a mounting block, and the mounting block is provided with mounting holes.

9. A copper busbar cooling capacitor according to claim 1, characterized in that, An insulating sheet is provided between the first epitaxial end and the second epitaxial end.

10. A copper busbar cooling capacitor according to claim 9, characterized in that, Both the first epitaxial end and the second epitaxial end are provided with through holes.

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