A cylindrical capacitor

Abstract

The application relates to the technical field of capacitors, in particular to a cylindrical capacitor which comprises a cylindrical shell, the top of the shell is provided with an end cover, the top surface of the end cover is provided with a base, the base is slidably provided with a sliding cover, a containing groove is arranged in the center of the upper surface of the base, a terminal post is arranged in the center of the containing groove, a positioning pressing block is elastically arranged at the bottom end of the sliding post, the positioning pressing block extends into the containing groove and is sleeved on the terminal post, two horizontal sliding blocks are elastically arranged in the positioning pressing block, the horizontal sliding blocks slide to the center and press on the sliding post in the center, the application solves the problems that the coupling structure design of the cylindrical capacitor is relatively inconvenient and time-consuming and labor-consuming, a quick and stable assembly relationship is formed between the base and the sliding cover, convenient coupling and disconnection are realized, the capacitor is convenient for the staff to assemble and disassemble, normal use of the capacitor is ensured, and convenience is provided for subsequent capacitor maintenance.

Description

Technical Field

[0001] This invention relates to the field of capacitor technology, and more particularly to a cylindrical capacitor. Background Technology

[0002] Capacitors are common electronic components in the field of electronics. Existing cylindrical capacitors have several drawbacks: when coupling the terminals to the connecting wires, the wires need to be wrapped around the bottom of the terminal before being tightened with a hexagonal nut to secure the terminal to the wire. Since the hexagonal nut requires a wrench or similar tool to tighten, sufficient operating space must be left during installation. In reality, to ensure a compact assembly of the entire capacitor, little space is left, which inconveniences the assembly work. Furthermore, while using the hexagonal nut to tighten ensures a relatively stable connection between the terminal and the connecting wire, it increases the difficulty and time-consuming nature of subsequent disassembly and maintenance. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cylindrical capacitor.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A cylindrical capacitor includes a cylindrical housing, an end cap at the top of the housing, a base on the top surface of the end cap, and a sliding cover slidably mounted on the base, wherein:

[0006] A receiving groove is formed in the center of the upper surface of the base, and a terminal post is provided in the center of the receiving groove. A connecting wire is wound around the outside of the terminal post. The connecting wire extends from the inside to the outside of the base. A washer is fitted on the outside of the terminal post and presses on the connecting wire.

[0007] The sliding cover has a vertical sliding column slidably installed inside. The bottom end of the sliding column is provided with a positioning block. The outer contour of the positioning block matches the receiving groove. The positioning block is embedded into the receiving groove from top to bottom. The positioning block has a receiving hole on its bottom surface for inserting the terminal block. The lower surface of the positioning block presses on the washer.

[0008] The sliding column and the positioning block form a T-shaped integrated structure. The top of the sliding column extends from the top surface of the sliding cover, and the bottom of the positioning block extends from the bottom surface of the sliding cover. Inside the sliding cover, movable blocks are rotatably installed on both sides of the sliding column via fixed shafts. Spherical end blocks are installed at both ends of the movable blocks. Vertical sliding blocks are also slidably assembled on the outside of the movable blocks on both sides of the sliding cover. Rectangular notches are opened on the two side walls of the sliding column and the opposite surfaces of the sliding blocks on both sides. The spherical end blocks at both ends of the movable blocks on the same side are respectively embedded in the corresponding notches and form a mating relationship.

[0009] A pressure plate is provided above the sliding cover. Mounting brackets are connected to the bottom two sides of the pressure plate. The bottom ends of the two mounting brackets extend into the sliding cover and are connected to the top of the sliding block on the corresponding side. A first spring is provided at the bottom of the pressure plate. The bottom end of the first spring is installed on the top surface of the sliding column. A second spring is provided at the bottom end of the sliding block on both sides. The bottom ends of the second springs are installed inside the sliding cover.

[0010] The sliding column is hollow inside, and a vertical slider is slidably mounted inside the sliding column. A vertical column is provided at the top of the vertical slider. The top of the vertical column extends upward from the sliding column and passes through the pressure plate above. A third spring is sleeved on the outside of the vertical column. The upper end of the third spring presses against the top wall of the sliding column, and the lower end of the third spring presses against the vertical slider.

[0011] The positioning block has two sliding blocks mounted on its inner sides. The surfaces of the two sliding blocks facing each other have arc surfaces that fit the outer wall of the terminal block. The two sliding blocks slide into the central receiving hole and cover the central terminal block. The positioning block has two rotatably mounted connecting arms on its inner sides. The two ends of the connecting arms are provided with ball bearings. One ball bearing is embedded in the bottom of the upper vertical slider and maintains a sliding engagement with it. The other ball bearing is embedded in the lower horizontal slider and maintains a sliding engagement with it.

[0012] In a preferred embodiment, the upper surface of the base has centrally symmetrical guide channels on both sides. The guide channels on both sides are designed as arcs, and the centers of the arcs on both sides are the same. The bottom surface of the sliding cover is provided with mounting sliders on both sides, and the mounting sliders slide inward from the port of the guide channel on the corresponding side.

[0013] In a preferred embodiment, the bottom of the sliding block is provided with a vertical guide post, and the second spring is sleeved on the outside of the guide post.

[0014] In a preferred embodiment, a horizontal groove is formed in the lower half of the vertical slider, and the ball bearings located at the upper ends of the connecting arms on both sides are built into the horizontal groove and slide along it.

[0015] In a preferred embodiment, the horizontal slider has a vertical groove inside, and the ball bearings located at the lower ends of the connecting arms on both sides are respectively built into the corresponding vertical grooves and slide along them.

[0016] In a preferred embodiment, the connecting arm is an integral arm with a bending angle, and the bent part of the connecting arm is rotatably installed in the positioning block.

[0017] In a preferred embodiment, the interior of the sliding cover is provided with a space for the two movable blocks to flip back and forth.

[0018] In a preferred embodiment, the positioning block has an internal space for the two connecting swing arms to rotate back and forth.

[0019] The beneficial effects of this invention are:

[0020] 1. Compared with the traditional method of fixing the terminal block and connecting the wires with a pressure cap, this design adopts a sliding cap fixing assembly method, which is simpler to assemble and can be quickly assembled without the need for tools, saving time and effort and reducing the workload of the staff.

[0021] 2. The base and sliding cover are easy to install and remove, which facilitates the maintenance of the capacitor.

[0022] 3. The positioning block can be quickly pressed onto the surface of the washer, making it convenient to couple the wires to the terminals. By unscrewing the sliding cover outward, the coupling of the wires can be disconnected, allowing for convenient coupling or disconnection.

[0023] In summary, the cylindrical capacitor proposed in this solution solves the problems of inconvenient, time-consuming, and labor-intensive coupling structure design of cylindrical capacitors. It establishes a quick and stable assembly relationship between the base and the sliding cover, enabling convenient coupling and disconnection, facilitating the installation and removal of capacitors by staff, ensuring normal use of the capacitors, and also providing convenience for subsequent capacitor maintenance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the cylindrical capacitor proposed in this invention;

[0025] Figure 2 This is a top view of the base structure proposed in this invention;

[0026] Figure 3 This is a schematic diagram of the bottom surface structure of the sliding cover proposed in this invention (view from below).

[0027] Figure 4 This is a schematic diagram of the internal structure of the sliding cover proposed in this invention;

[0028] Figure 5This is a schematic diagram of the internal structure of the sliding column and positioning block proposed in this invention;

[0029] Figure 6 This is a top view of the horizontal slider structure proposed in this invention.

[0030] In the diagram: 1. Housing; 2. End cap; 3. Base; 4. Sliding cover; 5. Terminal block; 6. Connecting wire; 7. Guide channel; 8. Washer; 9. Receiving groove; 10. Mounting slider; 11. Sliding column; 12. Movable block; 13. Sliding block; 14. Fixed shaft; 15. Spherical end block; 16. Notch groove; 17. Mounting bracket; 18. Pressure plate; 19. First spring; 20. Guide column; 21. Positioning pressure block; 22. Receiving hole; 23. Second spring; 24. Vertical slider; 25. Vertical column; 26. Third spring; 27. Horizontal groove; 28. Horizontal slider; 29. ​​Connecting swing arm; 30. Vertical groove. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] In this embodiment, refer to Figure 1-4 A cylindrical capacitor includes a cylindrical housing 1, an end cap 2 on the top of the housing 1, a base 3 on the top surface of the end cap 2, and a sliding cover 4 slidably mounted on the base 3. The upper surface of the base 3 has a receiving groove 9 at its center, and a terminal post 5 is provided at the center of the receiving groove 9. A connecting wire 6 is wound around the outside of the terminal post 5 and extends from the inside to the outside of the base 3. A washer 8 is fitted on the outside of the terminal post 5 and presses the connecting wire 6.

[0033] The upper surface of the base 3 has centrally symmetrical guide channels 7 on both sides. The guide channels 7 on both sides are designed as arcs, and the centers of the arcs on both sides are the same. The bottom surface of the sliding cover 4 is provided with mounting sliders 10 on both sides. The mounting sliders 10 slide inward from the port of the guide channel 7 on the corresponding side.

[0034] Combined with appendix Figure 2 and appendix Figure 3As can be seen, a vertical sliding post 11 is slidably installed inside the sliding cover 4. A positioning block 21 is provided at the bottom end of the sliding post 11. The outer contour of the positioning block 21 matches the receiving groove 9. The positioning block 21 is embedded into the receiving groove 9 from top to bottom. The positioning block 21 has a receiving hole 22 on its bottom surface for inserting the terminal 5. The lower surface of the positioning block 21 presses against the washer 8. The positioning block 21 can be just inserted into the receiving groove 9. Here, the positioning block 21 can be used to press against the washer 8 below, stably pressing the connecting wire 6 on the outside of the terminal 5 to form a coupling relationship. On the other hand, the receiving hole 22 at the bottom of the positioning block 21 fits perfectly on the terminal 5, forming a protection.

[0035] As attached Figure 4 As shown, the sliding column 11 and the positioning block 21 form a T-shaped integrated structure. The top of the sliding column 11 extends from the top surface of the sliding cover 4, and the bottom of the positioning block 21 extends from the bottom surface of the sliding cover 4. Inside the sliding cover 4, movable blocks 12 are rotatably installed on both sides of the sliding column 11 via fixed shafts 14. Spherical end blocks 15 are installed at both ends of the movable blocks 12. Vertical sliding blocks 13 are also slidably assembled on the outer sides of the movable blocks 12 on both sides of the sliding cover 4. Rectangular notches 16 are opened on the two side walls of the sliding column 11 and the opposite surfaces of the sliding blocks 13 on both sides. The spherical end blocks 15 at both ends of the movable blocks 12 on the same side are respectively embedded in the corresponding notches 16 and form a mating relationship.

[0036] A pressure plate 18 is provided above the sliding cover 4. Mounting brackets 17 are connected to the bottom of the pressure plate 18 on both sides. The bottom ends of the two mounting brackets 17 extend into the sliding cover 4 and connect to the top of the corresponding sliding block 13. A first spring 19 is provided at the bottom of the pressure plate 18, and its bottom end is mounted on the top surface of the sliding column 11. Second springs 23 are provided at the bottom ends of the sliding blocks 13 on both sides, and their bottom ends are installed inside the sliding cover 4. It should be noted that a vertical guide post 20 is provided at the bottom of the sliding block 13, and the second spring 23 is sleeved on the outside of the guide post 20. The guide post 20 is designed to ensure that the second spring 23 can extend and retract along the column direction of the guide post 20, thereby ensuring that the sliding block 13 can slide vertically without deviation.

[0037] When the worker presses down on the pressure plate 18, it causes the mounting bracket 17 to push the sliding block 13 downwards and compresses the first spring 19. When the sliding blocks 13 on both sides slide downwards simultaneously, both movable blocks 12 are in a state where the outer ends are pressed down and the inner ends are raised. At this time, the sliding column 11 in the middle will be lifted upwards. The distance between the sliding column 11 and the pressure plate 18 gradually decreases, that is, the compression of the first spring 19 further increases.

[0038] Since the sliding post 11 and the positioning block 21 are integrally formed, as the sliding post 11 is lifted, the positioning block 21 will be lifted synchronously. When the pressure plate 18 is pressed down to its limit position, the positioning block 21 should be retracted to the deepest position inside the sliding cover 4, i.e., attached. Figure 4 As shown in the diagram, the lower surface of the positioning block 21 is slightly higher than the lower surface of the sliding cover 4, and the presence of the positioning block 21 will not affect the sliding of the sliding cover 4.

[0039] During the above process, the staff only needs to press the pressure plate 18, and the first spring 19 and the two second springs 23 will be in a compressed state. Afterwards, as long as the pressure plate 18 is released, the pressure plate 18 will be pushed back to its original position during the rebound of the first spring 19 and the second spring 23.

[0040] When assembling the sliding cover 4, the operator only needs to press the pressure plate 18 to retract the positioning block 21 into the sliding cover 4. Then, the installation slider 10 is slid into the entrance of the two guide channels 7. After rotating the sliding cover 4 to the end of the guide channel 7, the positioning block 21 is directly above the receiving groove 9, and the receiving hole 22 is aligned with the terminal 5. Then, the pressure plate 18 is released, and under the rebound action of the first spring 19 and the second spring 23, the positioning block 21 enters the receiving groove 9, and the terminal 5 is inserted into the receiving hole 22. Since the positioning block 21 can form a stable mating relationship with the receiving groove 9, the sliding cover 4 is in a state where it cannot be moved, and a stable mating relationship is formed between the base 3 and the sliding cover 4.

[0041] The above process constitutes one pressing process.

[0042] As attached Figure 5 and appendix Figure 6 As shown, the interior of the sliding column 11 is hollow, and a vertical slider 24 is slidably mounted inside the sliding column 11. A vertical column 25 is provided on the top of the vertical slider 24. The top of the vertical column 25 extends upward from the sliding column 11 and passes through the pressure plate 18 above. A third spring 26 is sleeved on the outside of the vertical column 25. The upper end of the third spring 26 presses against the top wall of the sliding column 11, and the lower end of the third spring 26 presses against the vertical slider 24.

[0043] The positioning block 21 has two sliding blocks 28 on its inner sides. The opposing surfaces of the two sliding blocks 28 have arc surfaces that fit the outer wall of the terminal 5. The two sliding blocks 28 slide into the central receiving hole 22 and cover the central terminal 5. Connecting swing arms 29 are rotatably mounted on both sides of the positioning block 21, in conjunction with the attached... Figure 5As can be seen, the connecting arm 29 is an integral arm with a bending angle, and the bent part of the connecting arm 29 is rotatably installed in the positioning block 21. Sliding balls are respectively provided at both ends of the connecting arm 29. One sliding ball is embedded in the bottom of the upper vertical slider 24 and maintains a sliding engagement with it, and the other sliding ball is embedded in the lower horizontal slider 28 and maintains a sliding engagement with it.

[0044] It should be further explained that, firstly, a horizontal groove 27 is formed in the lower half of the vertical slider 24, and the ball bearings provided at the upper ends of the connecting arms 29 on both sides are all built into the horizontal groove 27 and slide along it; secondly, a vertical groove 30 is formed inside the horizontal slider 28, and the ball bearings provided at the lower ends of the connecting arms 29 on both sides are respectively built into the corresponding vertical groove 30 and slide along it.

[0045] As attached Figure 5 As shown, the connecting arms 29 on both sides form a V-shape design. When the operator presses down on the vertical column 25, the vertical slider 24 moves down synchronously and presses down on the connecting arms 29, causing the lower ends of the two connecting arms 29 to push the horizontal sliders 28 to both sides simultaneously. This visually manifests as an increase in the distance between the two horizontal sliders 28. When the operator releases pressure on the vertical column 25, the rebound force of the third spring 26 causes the lower ends of the two connecting arms 29 to push the horizontal sliders 28 towards the center simultaneously. Here, to ensure that the terminal 5 smoothly enters the receiving hole 22, the horizontal sliders 28 on both sides need to be spaced far apart. Once the terminal 5 has entered the receiving hole 22, the horizontal sliders 28 on both sides can slide synchronously towards the center and press against both sides of the terminal 5. The two horizontal sliders 28 can then abut against the terminal 5, further restricting its position.

[0046] The above process involves two pressing steps.

[0047] During the assembly process on the production line, the workers first press down on the vertical column 25. After the vertical column 25 descends to its limit position, they continue to press down to make the pressure plate 18 move down. After the sliding cover 4 is installed in place, the pressure on the pressure plate 18 is removed first, and then the pressure on the vertical column 25 is removed. Finally, the assembly of the entire capacitor product can be completed.

[0048] Similarly, when it is necessary to remove the sliding cover 4, the staff can first press the vertical column 25 to make the horizontal slider 28 lose its clamping of the terminal 5, and then press down the pressure plate 18 to make the positioning pressure block 21 disengage from the receiving groove 9. Finally, the entire sliding cover 4 can be rotated outward along the guide groove 7.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cylindrical capacitor, comprising a cylindrical housing (1), wherein an end cap (2) is disposed on the top of the housing (1), and a base (3) is disposed on the top surface of the end cap (2), characterized in that, A sliding cover (4) is slidably mounted on the base (3), wherein: A receiving groove (9) is opened in the center of the upper surface of the base (3). A terminal post (5) is provided in the center of the receiving groove (9). A connecting wire (6) is wound around the outside of the terminal post (5). The connecting wire (6) extends from the inside to the outside of the base (3). A washer (8) is fitted on the outside of the terminal post (5). The washer (8) presses on the connecting wire (6). The sliding cover (4) has a vertical sliding column (11) slidably installed inside. The bottom end of the sliding column (11) is provided with a positioning block (21). The outer contour of the positioning block (21) matches the receiving groove (9). The positioning block (21) is embedded into the receiving groove (9) from top to bottom. The positioning block (21) has a receiving hole (22) for inserting the terminal (5) on its bottom surface. The lower surface of the positioning block (21) presses on the washer (8). The sliding column (11) and the positioning block (21) form a T-shaped integrated structure. The top of the sliding column (11) extends from the top surface of the sliding cover (4), and the bottom of the positioning block (21) extends from the bottom surface of the sliding cover (4). Inside the sliding cover (4), movable blocks (12) are rotatably installed on both sides of the sliding column (11) via fixed shafts (14). Spherical end blocks (15) are installed at both ends of the movable blocks (12). Vertical sliding blocks (13) are also slidably assembled on the outer side of the movable blocks (12) on both sides of the sliding cover (4). Rectangular notches (16) are opened on the two side walls of the sliding column (11) and the opposite surfaces of the two sliding blocks (13). The spherical end blocks (15) set at both ends of the movable blocks (12) on the same side are respectively embedded in the corresponding notches (16) and form a mating relationship. A pressure plate (18) is provided above the sliding cover (4). Mounting brackets (17) are connected to the bottom two sides of the pressure plate (18). The bottom ends of the two mounting brackets (17) extend into the sliding cover (4) and are connected to the top of the sliding block (13) on the corresponding side. A first spring (19) is provided at the bottom of the pressure plate (18). The bottom end of the first spring (19) is installed on the top surface of the sliding column (11). A second spring (23) is provided at the bottom end of the sliding block (13) on both sides. The bottom ends of the second spring (23) are installed inside the sliding cover (4). The sliding column (11) is hollow inside, and a vertical slider (24) is slidably mounted inside the sliding column (11). A vertical column (25) is provided on the top of the vertical slider (24). The top of the vertical column (25) extends upward from the sliding column (11) and passes through the pressure plate (18) above. A third spring (26) is sleeved on the outside of the vertical column (25). The upper end of the third spring (26) presses against the top wall of the sliding column (11), and the lower end of the third spring (26) presses against the vertical slider (24). The positioning block (21) has two sliding blocks (28) on its inner sides. The surfaces of the two sliding blocks (28) on opposite sides are opened with arc surfaces that are adapted to the outer wall of the terminal (5). The two sliding blocks (28) slide into the central receiving hole (22) and cover the central terminal (5). The positioning block (21) has two rotating connecting arms (29) on its inner sides. The two ends of the connecting arms (29) are respectively provided with ball bearings. One ball bearing is embedded in the bottom of the upper vertical slider (24) and maintains a sliding fit with it. The other ball bearing is embedded in the lower horizontal slider (28) and maintains a sliding fit with it.

2. A cylindrical capacitor according to claim 1, characterized in that, The upper surface of the base (3) has centrally symmetrical guide channels (7) on both sides. The guide channels (7) on both sides are designed as arcs, and the centers of the arcs on both sides are the same. The bottom surface of the sliding cover (4) is provided with mounting sliders (10) on both sides. The mounting sliders (10) slide inward from the port of the guide channel (7) on the corresponding side.

3. A cylindrical capacitor according to claim 1, characterized in that, The bottom of the sliding block (13) is provided with a vertical guide post (20), and the second spring (23) is sleeved on the outside of the guide post (20).

4. A cylindrical capacitor according to claim 1, characterized in that, The lower half of the vertical slider (24) has a horizontal groove (27), and the ball bearings on the upper end of the connecting swing arms (29) on both sides are all built into the horizontal groove (27) and slide along it.

5. A cylindrical capacitor according to claim 1, characterized in that, The horizontal slider (28) has a vertical groove (30) inside, and the ball bearings at the lower ends of the connecting arms (29) on both sides are respectively built into the corresponding vertical grooves (30) and slide along them.

6. A cylindrical capacitor according to claim 4 or 5, characterized in that, The connecting arm (29) is an integral arm with a bending angle, and the bent part of the connecting arm (29) is rotatably installed in the positioning block (21).

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