A capacitor
By introducing a combination structure of mounting base and housing into the capacitor, and utilizing the design of locking ring and fan, the problems of difficult installation and low heat dissipation efficiency of capacitors are solved, enabling quick disassembly and efficient heat dissipation, and extending service life.
Patent Information
- Application Number
- CN202521934272.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-09
AI Technical Summary
Existing capacitors are difficult to install and remove, and have low heat dissipation efficiency, resulting in excessively high temperatures and shortened service life.
It adopts a combination structure of mounting base and mounting shell, combined with locking ring and fan, and is fixed by bolts. It uses copper heat sink and fan for quick installation and efficient heat dissipation.
It enables rapid installation and removal of capacitors, improves heat dissipation efficiency, reduces temperature, and extends service life.
Smart Images

Figure CN224682944U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of capacitors, and specifically relates to a capacitor. Background Technology
[0002] A capacitor is a device that stores electrical charge. It mainly consists of two conductors placed close together with a non-conductive insulating medium sandwiched in between. It plays an important role in circuits such as tuning, bypassing, coupling, and filtering. Nowadays, capacitors are used in anything related to electricity.
[0003] Existing capacitors are installed by fixing them to mounting seats with bolts through several fixed plates at the bottom, which makes it difficult to install and remove them, especially large capacitors. Existing capacitors have low heat dissipation efficiency, and self-heating can easily lead to overheating and damage, reducing their lifespan and shortening the interval between capacitor replacements. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing a capacitor that facilitates core replacement while improving heat dissipation efficiency.
[0005] This utility model can be achieved through the following technical solution: a capacitor, including a main body, a mounting shell, and a mounting base, wherein a fixing plate extends from the mounting base, a bolt passes through the fixing plate, a fixing seat is provided on the mounting base, the mounting shell is mounted on the fixing seat, a fixing groove is provided on the fixing seat, the mounting shell is provided with a fixing edge, the fixing edge is inserted into the fixing groove, a locking ring is installed on the outside of the fixing seat, the locking ring presses the fixing edge, a fan is installed at the bottom of the mounting base, and a heat sink is provided inside the mounting shell.
[0006] In the aforementioned capacitor, the heat sink is made of copper.
[0007] In the capacitor described above, the mounting base is provided with a guide post, a locking block is installed inside the guide post, a spring is installed between the locking block and the guide post, a sliding groove is provided on the locking ring, and a locking groove is provided at the end of the sliding groove.
[0008] In the capacitor described above, a push ring is provided outside the locking ring, a protrusion is provided on the outer side of the push ring, a retraction block is provided on the inner side of the push ring, a push post is provided inside the retraction block, and a spring is provided between the push post and the retraction block.
[0009] In the capacitor described above, a cross-shaped groove is provided on the protrusion, a connecting rod extends from the push post, and a limit plate is installed on the connecting rod.
[0010] In the capacitor described above, a limiting hole is provided on the locking ring, and a through hole is provided on the pushing ring. A limiting rod passes through the through hole and the limiting hole.
[0011] In the capacitor described above, a support portion is provided between the bottom surface of the mounting base and the fixing plate, and a ventilation opening is provided between the support portions, with a dustproof net laid at the ventilation opening.
[0012] In the aforementioned capacitor, the side of the mounting housing has several air outlets, a baffle is provided outside the air outlets, and a dustproof net is installed between the baffle and the air outlet.
[0013] Compared with the prior art, the advantages of this utility model are as follows: a mounting base is added between the capacitor body and the mounting seat, and the capacitor can be quickly installed and disassembled through the cooperation between the locking ring, the mounting base and the mounting shell; a heat sink is set inside the mounting shell and a fan is installed inside the mounting base. The heat sink absorbs the heat of the capacitor and the fan quickly cools the heat sink and the body, thereby improving the heat dissipation efficiency. Attached Figure Description
[0014] Figure 1 It is a 3D diagram of a capacitor; Figure 2 This is a cross-sectional view of a capacitor; Figure 3 This is a cross-sectional view of the capacitor's mounting case; Figure 4 This is a 3D view of the capacitor's locking ring; Figure 5 This is a 3D diagram of the capacitor's drive ring; Figure 6 yes Figure 2 Enlarged view within circle A; The components are as follows: 1. Main body; 2. Mounting shell; 21. Fixed edge; 22. Guide column; 23. Air outlet; 231. Baffle; 24. Dustproof net II; 3. Mounting base; 31. Fixing plate; 32. Fixing base; 33. Fixing groove; 34. Fan; 35. Heat sink; 36. Support part; 37. Ventilation opening; 371. Dustproof net I; 4. Bolt; 5. Locking ring; 51. Slide groove; 52. Slot; 53. Limiting hole; 6. Locking block; 61. Spring I; 7. Pushing ring; 71. Protrusion; 72. Retracting block; 73. Through hole; 74. Cross groove; 8. Limiting rod; 9. Push column; 91. Spring II; 92. Connecting rod; 93. Limiting plate. Detailed Implementation
[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0016] like Figures 1 to 6 As shown, this utility model can be implemented through the following embodiments: A capacitor includes a main body 1, a mounting shell 2 and a mounting base 3. A fixing plate 31 extends from the mounting base 3, and a bolt 4 passes through the fixing plate 31. A fixing base 32 is provided on the mounting base 3. The mounting shell 2 is installed on the fixing base 32. A fixing groove 33 is provided on the fixing base 32. The mounting shell 2 is provided with a fixing edge 21, which is inserted into the fixing groove 33. A locking ring 5 is installed on the outside of the fixing base 32, and the locking ring 5 presses the fixing edge 21. A fan 34 is installed at the bottom of the mounting base 3. A heat sink 35 is provided inside the mounting shell 2.
[0017] Mounting base 3 is used to fix the main body 1 at the required installation position and is fixed to the installation position by bolts 4; fixing base 32 is used to insert mounting shell 2 and main body 1, so that the main body 1 is fixed at the installation position by the cooperation between mounting shell 2 and mounting base 3; fixing edge 21 is inserted into fixing groove 33 and pressed by locking ring 5 to fix mounting shell 2 in mounting base 3, thereby fixing main body 1; fan 34 is used to air cool main body 1, and heat sink 35 is used to increase the heat dissipation area of main body 1 and improve heat dissipation efficiency.
[0018] like Figure 2 and Figure 3 As shown, the heat sink 35 is made of copper. Copper has good thermal conductivity, which can continuously absorb the heat generated by the main body 1 and improve heat dissipation efficiency.
[0019] like Figure 2 and Figure 4 As shown, the mounting base 3 is provided with a guide post 22, and a locking block 6 is installed inside the guide post 22. A spring 61 is installed between the locking block 6 and the guide post 22. The locking ring 5 has a sliding groove 51, and a locking groove 52 is opened at the end of the sliding groove 51. The guide post 22 is used to slide in the sliding groove 51, so that the locking ring 5 is installed on the mounting base 3. Because it is a sliding connection, it is easy to assemble and disassemble. The locking block 6 is pushed by the spring 61 and inserted into the locking groove 52 at the end of the sliding groove 51, so that the mounting part and the locking ring 5 are fixedly connected. The locking ring 5 limits the fixed edge 21 and prevents the mounting shell 2 from sliding arbitrarily, causing the capacitor to fall out of the mounting base 3.
[0020] like Figure 1 , Figure 2 and Figure 5As shown, a pushing ring 7 is provided outside the locking ring 5, a protrusion 71 is provided on the outer side of the pushing ring 7, a retraction block 72 is provided on the inner side of the pushing ring 7, a push post 9 is provided inside the retraction block 72, and a spring 91 is provided between the push post 9 and the retraction block. The pushing ring 7 is used to release the connection between the locking block 6 and the slot 52 on the locking ring 5 when the locking ring 5 is removed; the retraction block 72 is used to push the locking block 6, which has protruded from the slot 52, to initially retract; the push post 9 is used to further push the locking block 6 back into the guide post 22, releasing the fixed connection between the locking ring 5 and the mounting base 3; the spring 91 provides the power for the push post 9 to push inward.
[0021] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a cross-shaped groove 74 is provided on the protrusion 71, and a connecting rod 92 extends from the push post 9. A limiting plate 93 is installed on the connecting rod 92. The depths between the different lines of the cross-shaped groove 74 are different. By pulling and rotating the limiting plate 93, the drop formed by the different groove depths of the cross-shaped groove 74 causes the push post 9 to push the locking block 6 away from the slot 52 when the locking ring 5 is disassembled. The limiting plate 93 is used to cooperate with the cross-shaped groove 74 to limit the movement distance of the push post 9 and prevent the push post 9 from getting stuck in the guide post 22.
[0022] like Figure 1 , Figure 4 and Figure 5 As shown, the locking ring 5 has a limiting hole 53, and the pushing ring 7 has a through hole 73. A limiting rod 8 passes through the through hole 73 and the limiting hole 53. The limiting rod 8 passes through the through hole 73 and the limiting hole 53, fixing the locking ring 5 and the pushing ring 7 together to prevent the pushing ring 7 from moving arbitrarily and causing the locking ring 5 to come off accidentally.
[0023] like Figure 1 and Figure 2 As shown, a support portion 36 is provided between the bottom surface of the mounting base 3 and the fixing plate 31. A ventilation opening 37 is opened between the support portions 36, and a dustproof net 371 is laid at the ventilation opening 37. The support portion 36 creates a gap between the bottom surface of the mounting base 3 and the mounting position, which facilitates the fan 34 to send air into the mounting base 3 and the mounting shell 2 through the ventilation opening 37, thereby improving heat dissipation efficiency. The dustproof net 371 is used to block dust and other impurities in the air that can easily cause heat insulation problems, thus preventing a reduction in heat dissipation efficiency.
[0024] like Figures 1 to 3 As shown, the mounting housing 2 has several air outlets 23 on its side. A baffle 231 is installed outside the air outlets 23, and a dustproof net 24 is installed between the baffle 231 and the air outlets 23. The air outlets 23 are used to discharge heat dissipation airflow; the baffle 231 is used to reduce the entry of foreign impurities into the mounting housing 2 from the air outlets 23; and the dustproof net 24 is used to block dust and other impurities.
[0025] The working principle of this utility model is as follows: After the assembled capacitor is fixed in a certain position by bolts 4, the fan 34 is started, the airflow enters from the vent 37, flows through the heat sink 35 and the main body 1 to dissipate heat, and finally flows out from the air outlet 23, thereby improving the heat dissipation efficiency.
[0026] When the main body 1 needs to be replaced, remove the limiting rod 8, push the pushing ring 7 to move through the protrusion 71, then pull the limiting plate 93 to change the position of the limiting plate 93 in the cross groove 74, so that the push post 9 is inserted into the slot 52 and the locking block 6 is pushed out of the slot 52. Then remove the locking ring 5, and finally remove the mounting shell 2 to replace the main body 1. Reverse the above steps to complete the assembly.
[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0028] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.
Claims
1. A capacitor, comprising a body (1), a mounting shell (2), and a mounting base (3), characterized in that: A fixing plate (31) extends from the mounting base (3), and a bolt (4) passes through the fixing plate (31). A fixing seat (32) is provided on the mounting base (3). The mounting shell (2) is installed on the fixing seat (32). A fixing groove (33) is provided on the fixing seat (32). A fixing edge (21) is provided on the mounting shell (2). The fixing edge (21) is inserted into the fixing groove (33). A locking ring (5) is installed on the outside of the fixing seat (32). The locking ring (5) presses the fixing edge (21). A fan (34) is installed at the bottom of the mounting base (3). A heat sink (35) is provided inside the mounting shell (2).
2. A capacitor according to claim 1, characterized in that, The heat sink (35) is made of copper.
3. A capacitor according to claim 1, characterized in that, A guide post (22) is provided on the fixed side (21), a locking block (6) is installed inside the guide post (22), a spring (61) is installed between the locking block (6) and the guide post (22), a sliding groove (51) is provided on the locking ring (5), and a locking groove (52) is provided at the end of the sliding groove (51).
4. A capacitor according to claim 1, characterized in that, A protrusion (71) is provided on the outer side of the push ring (7), and a retraction block (72) is provided on the inner side of the push ring (7). A push post (9) is provided inside the retraction block (72), and a spring (91) is provided between the push post (9) and the retraction block.
5. A capacitor according to claim 4, characterized in that, The protrusion (71) has a cross groove (74), the push post (9) extends the connecting rod (92), and a limit plate (93) is installed on the connecting rod (92).
6. A capacitor according to claim 4, characterized in that, The locking ring (5) has a limiting hole (53), the pushing ring (7) has a through hole (73), and a limiting rod (8) passes through the through hole (73) and the limiting hole (53).
7. A capacitor according to claim 1, characterized in that, A support part (36) is provided between the bottom surface of the mounting base (3) and the fixing plate (31), and a ventilation opening (37) is opened between the support parts (36), and a dustproof net (371) is laid at the ventilation opening (37).
8. A capacitor according to claim 1, characterized in that, The mounting housing (2) has several air outlets (23) on its side. A baffle (231) is provided outside the air outlet (23). A dustproof net (24) is installed between the baffle (231) and the air outlet (23).