A metallized film capacitor

Abstract

The utility model discloses a kind of metalized film capacitors, relate to the technical field of electronic components, a kind of metalized film capacitors, including capacitor shell, capacitor shell is equipped with pin, pin is equipped with stabilizing mechanism;Stabilizing mechanism includes base, cover and clamping assembly, base and cover are all set with through slot, clamping assembly includes first clamping plate and second clamping plate, first clamping plate and second clamping plate are all equipped with two, first clamping plate and slot are set with first elastic member between, second clamping plate and slot are set with second elastic member between.By the cooperation of slidable first clamping plate, second clamping plate, first elastic member and second elastic member, stabilizing mechanism can adapt to the change of different model capacitor pin spacing, whether it is the wide spacing of large capacitor, or the small spacing of micro capacitor, can realize stable clamping, adapt to the pin spacing demand of diversification, greatly expand the application range of capacitor.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic components, specifically to a metallized thin-film capacitor. Background Technology

[0002] Metallized film capacitors are capacitors made by winding organic plastic films as dielectrics and metallized films as electrodes. The films used in metallized film capacitors include polyethylene, polypropylene, and polycarbonate. In addition to wound types, there are also multilayer types. Metallized film capacitors have excellent electrical characteristics, high stability, and long lifespan, and can meet various different applications.

[0003] In the existing technical solution, Chinese patent with authorization announcement number CN219658552U discloses a metallized thin film capacitor with strong heat dissipation performance, including a capacitor shell. The capacitor shell has pins fixedly installed inside, and a stabilizing component is provided at the bottom of the pins. When installing the pins, the bottom of the pins is first inserted into the hole. After the bottom of the pins is inserted into the hole, the user presses the limiting block with his hand to move it towards the stabilizing plate. The movement of the limiting block drives the first trigger block to move synchronously. The movement of the first trigger block drives two second trigger blocks to move synchronously in opposite directions. The movement of the second trigger blocks drives the moving block to move synchronously in opposite directions from the positioning block. The movement of the moving block drives the clamping plate to move synchronously in opposite directions from the fixed block through the V-shaped rod, thereby causing the clamping plate and the fixed block to release the clamping of the pins.

[0004] The shortcomings of the existing technical solutions are as follows: due to the significant differences in the spacing between the bottom leads of different types of metallized film capacitors, and the fixed relative positions of the clamping plate and the fixing block in the existing technology, it is difficult to adapt to diverse lead spacing requirements. For example, when dealing with large capacitors with wide lead spacing, the fixed clamping structure may not be able to reach the leads; while for miniature capacitors with small lead spacing, excessive clamping may cause lead deformation or even damage, severely limiting the versatility and applicability of the structure. Utility Model Content

[0005] This invention provides a metallized film capacitor that can solve the problem that the spacing of the bottom pins of different models of metallized film capacitors varies greatly, while the relative positions of the clamping plate and the fixing block in the prior art are fixed, making it difficult to adapt to diverse pin spacing requirements.

[0006] A metallized film capacitor includes a capacitor housing. Two symmetrically arranged pins are fixedly installed inside the capacitor housing, with the bottom ends of each pin extending vertically downwards through the bottom of the capacitor housing. A stabilizing mechanism is provided at the bottom end of each pin. The stabilizing mechanism includes a base, a cover plate, and a clamping assembly. The top of the base has a slot, and the cover plate is fitted into the slot opening. Both the base and the cover plate have two symmetrically arranged through slots. The clamping assembly includes a first clamping plate and a second clamping plate. Two of each first and second clamping plates are provided. The two first clamping plates are slidably connected to one side of the corresponding through slot, and the two second clamping plates are slidably connected to the other side of the corresponding through slot. A first elastic element is provided between the first clamping plate and the slot, and a second elastic element is provided between the second clamping plate and the slot.

[0007] According to one embodiment of the present invention, the clamping assembly further includes a first guide rod, a second guide rod, a first frame, and a second frame. The first guide rod is horizontally fixedly disposed on the side of the first clamping plate and slidably connected to the first frame. The second guide rod is horizontally fixedly disposed on the side of the second clamping plate and slidably connected to the second frame. Both the first and second frames are fixedly disposed within a slot, and are symmetrically arranged on both sides of the slot. The first elastic element includes a first spring, which is wound around the side of the first guide rod, with both ends of the first spring abutting against the first clamping plate and the first frame, respectively. The second elastic element includes a second spring, which is wound around the side of the second guide rod, with both ends abutting against the second clamping plate and the second frame, respectively.

[0008] According to one embodiment of the present invention, the first frame has a first sliding hole that is horizontal and slidably engages with the first guide rod, and the second frame has a second sliding hole that is horizontal and slidably engages with the second guide rod. The clamping assembly further includes anti-detachment rings, of which a plurality of anti-detachment rings are provided and respectively fixedly disposed at the ends of the corresponding first and second guide rods.

[0009] According to one embodiment of the present invention, the clamping assembly further includes a first pressure rod, a second pressure rod, a first pressure plate, and a second pressure plate. Both the first and second pressure rods are horizontally slidably connected to the base. One end of the first pressure plate is fixedly connected to the first pressure rod, and the other end of the first pressure plate abuts against a first clamping plate. One end of the second pressure plate is fixedly connected to the second pressure rod, and the other end of the second pressure plate abuts against a second clamping plate. A first sliding groove and a second sliding groove are respectively formed on both sides of the base. The first pressure rod is slidably connected to the first sliding groove, and the second pressure rod is slidably connected to the second sliding groove.

[0010] According to one embodiment of the present invention, a handle is fixedly provided on the side of the capacitor housing.

[0011] According to one embodiment of the present invention, a first clamping groove is formed on the side of the first clamping plate, and a second clamping groove is formed on the side of the second clamping plate. Both the first clamping groove and the second clamping groove are arc-shaped, and their axes are both vertical.

[0012] The advantages of this utility model compared to the prior art are:

[0013] Through the cooperation of the sliding first clamp, the second clamp, the first elastic element, and the second elastic element, the stabilizing mechanism can adapt to the changes in the pin spacing of different types of capacitors. Whether it is a large capacitor with a wide spacing or a micro capacitor with a small spacing, it can achieve stable clamping, adapt to diverse pin spacing requirements, and greatly expand the application range of capacitors.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a metallized thin-film capacitor.

[0017] Figure 2 This is a three-dimensional structural diagram of the clamping component in this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the first clamping plate in this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the second clamping plate in this utility model.

[0020] The reference numerals in the figures include:

[0021] 1. Capacitor casing; 2. Pins; 3. Stabilizing mechanism; 4. Base; 5. Cover plate; 6. Clamping assembly; 7. First guide rod; 8. Second guide rod; 9. First frame; 10. Second frame; 11. First spring; 12. Second spring; 13. Anti-detachment ring; 14. First pressure rod; 15. Second pressure rod; 16. First pressure plate; 17. Second pressure plate; 18. First slide groove; 19. Second slide groove; 20. Handle; 21. First clamping groove; 22. Second clamping groove; 23. First clamping plate; 24. Second clamping plate. Detailed Implementation

[0022] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0023] First Embodiment

[0024] Please see Figures 1 to 4 As shown, a metallized film capacitor includes a capacitor housing 1. Two symmetrically arranged pins 2 are fixedly installed inside the capacitor housing 1, with the bottom ends of each pin 2 passing through the bottom of the capacitor housing 1 and extending vertically downwards. A stabilizing mechanism 3 is provided at the bottom end of each pin 2. The stabilizing mechanism 3 includes a base 4, a cover plate 5, and a clamping assembly 6. A slot is provided on the top of the base 4, and the cover plate 5 is fitted into the slot opening. Two symmetrically arranged through slots are provided on both the base 4 and the cover plate 5. The clamping assembly 6 includes a first clamping plate 23 and a second clamping plate 24. Two first clamping plates 23 and two second clamping plates 24 are provided. The two first clamping plates 23 are slidably connected to one side of the corresponding through slot, and the two second clamping plates 24 are slidably connected to the other side of the corresponding through slot. A first elastic element is provided between the first clamping plate 23 and the slot, and a second elastic element is provided between the second clamping plate 24 and the slot.

[0025] The working principle of this utility model is as follows: In actual operation, the elastic force of the first elastic element drives the first clamping plate 23 to move closer to the second clamping plate 24, and the elastic force of the second elastic element drives the second clamping plate 24 to move closer to the first clamping plate 23, thereby clamping and fixing the pin 2 in the area between the first clamping plate 23 and the second clamping plate 24. When installing the pin 2, firstly insert the bottom end of the pin 2 into the hole. After the bottom end of the pin 2 is inserted into the hole, the sliding first clamping plate 23 compresses the first elastic element, and the sliding second clamping plate 24 compresses the second elastic element, thereby causing the first clamping plate 23 and the second clamping plate 24 to release their clamping of the pin 2. Then, the stabilizing mechanism 3 is pushed, and the pin 2 moves along the through slot, realizing the separation between the stabilizing mechanism 3 and the pin 2.

[0026] Through the cooperation of the sliding first clamping plate 23, the second clamping plate 24, the first elastic element, and the second elastic element, the stabilizing mechanism 3 can adapt to the changes in the pin spacing 2 of different types of capacitors. Whether it is a large capacitor with a wide spacing or a micro capacitor with a small spacing, it can achieve stable clamping, adapt to diverse pin spacing requirements, and greatly expand the application range of capacitors.

[0027] Second Embodiment

[0028] Based on the first embodiment, the clamping assembly 6 further includes a first guide rod 7, a second guide rod 8, a first frame 9, and a second frame 10. The first guide rod 7 is horizontally fixedly disposed on the side of the first clamping plate 23 and slidably connected to the first frame 9. The second guide rod 8 is horizontally fixedly disposed on the side of the second clamping plate 24 and slidably connected to the second frame 10. Both the first frame 9 and the second frame 10 are fixedly disposed in the slot, and are symmetrically arranged on both sides of the slot. The first elastic element includes a first spring 11, which is wound around the side of the first guide rod 7, with both ends of the first spring 11 abutting against the first clamping plate 23 and the first frame 9, respectively. The second elastic element includes a second spring 12, which is wound around the side of the second guide rod 8, with both ends of the second spring 12 abutting against the second clamping plate 24 and the second frame 10, respectively.

[0029] When pin 2 needs to be released, the first clamping plate 23 and the second clamping plate 24 are pushed. The first spring 11, which is wound around the first guide rod 7, is compressed, and the second spring 12, which is wound around the second guide rod 8, is compressed simultaneously, increasing the distance between the first clamping plate 23 and the second clamping plate 24. After the first clamping plate 23 and the second clamping plate 24 are released, the two ends of the first spring 11 abut against the first clamping plate 23 and the first frame 9, respectively, and the two ends of the second spring 12 abut against the second clamping plate 24 and the second frame 10. The elastic force generated by the deformation of the first spring 11 and the second spring 12 drives the first clamping plate 23 and the second clamping plate 24 to move and clamp pin 2.

[0030] Third Embodiment

[0031] Based on the second embodiment, the first frame 9 has a first sliding hole that is horizontal and slidably engages with the first guide rod 7, and the second frame 10 has a second sliding hole that is horizontal and slidably engages with the second guide rod 8. The clamping assembly 6 also includes anti-detachment rings 13, of which several are provided and respectively fixedly disposed at the ends of the corresponding first guide rod 7 and second guide rod 8. The anti-detachment rings 13 are installed at the ends of the guide rods. When the clamping plate slides to its limit position, the anti-detachment rings 13 abut against the frame, preventing the guide rods from completely disengaging from the sliding holes, ensuring that the clamping plate always maintains a connection with the guide rods and the frame, and maintaining the normal operation of the clamping assembly 6.

[0032] Fourth embodiment

[0033] Based on the first embodiment, the clamping assembly 6 further includes a first pressure rod 14, a second pressure rod 15, a first pressure plate 16, and a second pressure plate 17. Both the first pressure rod 14 and the second pressure rod 15 are horizontally slidably connected to the base 4. One end of the first pressure plate 16 is fixedly connected to the first pressure rod 14, and the other end of the first pressure plate 16 abuts against the first clamping plate 23. One end of the second pressure plate 17 is fixedly connected to the second pressure rod 15, and the other end of the second pressure plate 17 abuts against the second clamping plate 24. The base 4 has a first sliding groove 18 and a second sliding groove 19 respectively on both sides. The first pressure rod 14 is slidably connected to the first sliding groove 18, and the second pressure rod 15 is slidably connected to the second sliding groove 19.

[0034] When it is necessary to adjust the distance between the first clamping plate 23 and the second clamping plate 24, push the first pressure rod 14 and the second pressure rod 15. The pushing force is transmitted to the first clamping plate 23 and the second clamping plate 24 through the first pressure plate 16 and the second pressure plate 17, causing the first clamping plate 23 and the second clamping plate 24 to slide against the elastic force of the first spring 11 and the second spring 12, thereby releasing the pin 2. When the pin 2 is inserted into the appropriate position, release the first pressure rod 14 and the second pressure rod 15. The elastic force of the first spring 11 and the second spring 12 drives the first clamping plate 23 and the second clamping plate 24 to reset and clamp the pin 2. The first pressure rod 14, the second pressure rod 15, the first pressure plate 16 and the second pressure plate 17 play the role of assisting in applying and transmitting force, making it easier for the user to control the opening and closing of the first clamping plate 23 and the second clamping plate 24.

[0035] Fifth Embodiment

[0036] Based on the first embodiment, a handle 20 is fixedly provided on the side of the capacitor housing 1. This provides a point of force application for the user. When moving the stabilizing mechanism 3, the user can hold the handle 20 and transmit force to the base 4 through the handle 20, making it easy to move the stabilizing mechanism 3 and avoiding shaking during operation, which would affect the accuracy of operation.

[0037] Sixth Embodiment

[0038] Based on the first embodiment, the first clamping plate 23 has a first clamping groove 21 on its side, and the second clamping plate 24 has a second clamping groove 22 on its side. Both the first clamping groove 21 and the second clamping groove 22 are arc-shaped, and their axes are both vertical. When the pin 2 is clamped, the arc-shaped first clamping groove 21 and the second clamping groove 22 fit against the cylindrical surface of the pin 2, forming surface contact. This allows the first clamping groove 21 and the second clamping groove 22 to evenly wrap around the pin 2, generating a circumferential clamping force and ensuring that the pin 2 is subjected to uniform force in all directions.

[0039] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A metallized thin-film capacitor, comprising a capacitor casing (1), characterized in that, The capacitor housing (1) has two pins (2) arranged symmetrically inside. The bottom ends of the pins (2) pass through the bottom of the capacitor housing (1) and extend vertically downward. The bottom ends of the pins (2) are provided with a stabilizing mechanism (3). The stabilizing mechanism (3) includes a base (4), a cover plate (5), and a clamping assembly (6). The top of the base (4) is provided with a slot, and the cover plate (5) is fitted at the opening of the slot. Both the base (4) and the cover plate (5) have two through slots arranged symmetrically. The clamping assembly (6) includes a first clamping plate (23) and a second clamping plate (24). Two first clamping plates (23) and two clamping plates (24) are provided. The two first clamping plates (23) are slidably connected to one side of the corresponding through slot, and the two second clamping plates (24) are slidably connected to the other side of the corresponding through slot. A first elastic element is provided between the first clamping plate (23) and the slot, and a second elastic element is provided between the second clamping plate (24) and the slot.

2. A metallized thin-film capacitor as described in claim 1, characterized in that, The clamping assembly (6) further includes a first guide rod (7), a second guide rod (8), a first frame (9), and a second frame (10). The first guide rod (7) is fixedly disposed horizontally on the side of the first clamping plate (23) and is slidably connected to the first frame (9). The second guide rod (8) is fixedly disposed horizontally on the side of the second clamping plate (24) and is slidably connected to the second frame (10). The first frame (9) and the second frame (10) are both fixedly disposed in the slot, and the first frame (9) and the second frame (10) are symmetrically arranged on both sides of the through slot.

3. A metallized thin-film capacitor as described in claim 2, characterized in that, The first elastic element includes a first spring (11), which is wound around the side of the first guide rod (7). The two ends of the first spring (11) abut against the first clamping plate (23) and the first frame (9) respectively. The second elastic element includes a second spring (12), which is wound around the side of the second guide rod (8). The two ends of the second spring (12) abut against the second clamping plate (24) and the second frame (10) respectively.

4. A metallized thin-film capacitor as described in claim 2, characterized in that, The first frame (9) has a first sliding hole that is horizontal and slides with the first guide rod (7), and the second frame (10) has a second sliding hole that is horizontal and slides with the second guide rod (8).

5. A metallized thin-film capacitor as described in claim 4, characterized in that, The clamping assembly (6) also includes anti-detachment rings (13), and several anti-detachment rings (13) are provided and are respectively fixedly installed at the ends of the corresponding first guide rod (7) and second guide rod (8).

6. A metallized thin-film capacitor as described in claim 1, characterized in that, The clamping assembly (6) further includes a first pressure rod (14), a second pressure rod (15), a first pressure plate (16), and a second pressure plate (17). The first pressure rod (14) and the second pressure rod (15) are both horizontal and slidably connected to the base (4). One end of the first pressure plate (16) is fixedly connected to the first pressure rod (14), and the other end of the first pressure plate (16) abuts against the first clamping plate (23). One end of the second pressure plate (17) is fixedly connected to the second pressure rod (15), and the other end of the second pressure plate (17) abuts against the second clamping plate (24).

7. A metallized thin-film capacitor as described in claim 6, characterized in that, The base (4) has a first sliding groove (18) and a second sliding groove (19) on its two sides respectively. The first pressure rod (14) is slidably connected to the first sliding groove (18), and the second pressure rod (15) is slidably connected to the second sliding groove (19).

8. A metallized thin-film capacitor as described in claim 1, characterized in that, A handle (20) is fixedly provided on the side of the capacitor housing (1).

9. A metallized thin-film capacitor as described in claim 1, characterized in that, The first clamping plate (23) has a first clamping groove (21) on its side, and the second clamping plate (24) has a second clamping groove (22) on its side.

10. A metallized thin-film capacitor as described in claim 9, characterized in that, The first clamping groove (21) and the second clamping groove (22) are both arc-shaped structures, and the axes of the first clamping groove (21) and the second clamping groove (22) are both vertical.

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