Anti-falling alternating current capacitor

Abstract

The utility model relates to the technical field of capacitor fixation, and discloses an anti-drop alternating current capacitor, which comprises a circuit board and a capacitor body, one end of the capacitor body is provided with a cylindrical pin, the cylindrical pin is sleeved with a thread bushing, the peripheral side of the capacitor body is provided with an annular groove, and the annular groove is provided with a through hole. A clamping ring is arranged in the annular groove in a sleeved mode, an inserting rod is installed on the outer wall of the clamping ring, and a threaded hole is formed in one end of the inserting rod. After the threaded sleeve is connected with the circuit board, the threaded clamping groove in the connecting rod is attached to the root, protruding out of the circuit board, of the threaded sleeve, the threaded sleeve is clamped through threads in the threaded clamping groove, rotation of the threaded sleeve is avoided, then bolts at the two ends of the connecting rod are screwed, the bolts are connected with threaded holes in the ends of the inserting rods, and therefore the connecting rod is positioned. At the moment, after the capacitor body is connected and fixed with the circuit board through the thread bushing, the thread bushing is positioned by the connecting rod, and the thread bushing does not rotate to cause looseness.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor fixing, and particularly relates to an AC capacitor that prevents dropping. Background Technique

[0002] An AC capacitor generally refers to a non-polar capacitor, which can be used in an AC circuit and has no positive and negative poles. Compared with a DC capacitor, an AC capacitor has the characteristics of a small capacitance and a high withstand voltage.

[0003] An AC capacitor is usually composed of two conductor plates separated by an insulating layer. When a voltage is applied to the capacitor, electrons in the capacitor will move back and forth between the conductor plates and will not conduct through the insulating layer, thus forming an electrostatic field.

[0004] The installation method of an AC capacitor mainly depends on its type, specification and specific application scenario. Among them, a smaller capacitor can be installed on a circuit board by surface mounting, and the pins are fixed on the circuit board by soldering to make the capacitor closely connected to the circuit board; when installing a larger capacitor, generally the insertion or terminal installation method is used. Among them, for insertion installation, insertion pins matching the capacitor pins need to be reserved on the circuit board, and then the capacitor is inserted into the insertion pin position to complete the connection. Terminal installation is to directly fix the capacitor on the shell or bracket of the device and fasten it with screws or clips.

[0005] However, in the above insertion and terminal installation methods, the insertion is prone to looseness, which may cause the capacitor to shake and thus form a risk of dropping. The terminal installation method requires reserving space for installing fixing parts on the periphery of the capacitor. On a circuit board or device with a dense capacitance, the installation of the fixing parts is very inconvenient and takes up space. Therefore, those skilled in the art have provided an AC capacitor that prevents dropping to solve the problems raised in the above background technique. Content of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] Aiming at the deficiencies of the prior art, the utility model provides an AC capacitor that prevents dropping to solve the problems that the traditional insertion is prone to looseness, which may cause the capacitor to shake and thus form a risk of dropping, and the terminal installation method requires reserving space for installing fixing parts on the periphery of the capacitor. On a circuit board or device with a dense capacitance, the installation of the fixing parts is very inconvenient and takes up space.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the present utility model provides the following technical solutions: An AC capacitor for preventing dropping, comprising a circuit board and a capacitor body. One end of the capacitor body is provided with a cylindrical pin, and a threaded sleeve is sleeved on the cylindrical pin. An annular groove is formed on the circumferential side of the capacitor body, and a snap ring is sleeved in the annular groove. A plug rod is installed on the outer wall of the snap ring. One end of the plug rod is provided with a threaded hole, and a connecting rod is arranged at the end of the plug rod with the threaded hole. Bolts are threadedly connected to both ends of the connecting rod, and a threaded card slot is formed on the connecting rod.

[0010] Preferably, a hexagonal sleeve is installed at one end of the threaded sleeve. The threaded sleeve and the hexagonal sleeve are integrally connected. The maximum diameter of the hexagonal sleeve is the same as the diameter of the threaded sleeve. The hexagonal sleeve and the threaded sleeve are rotatably sleeved on the cylindrical pin. When the threaded sleeve is threadedly connected to the circuit board, the rotation of the threaded sleeve can be realized by rotating the hexagonal sleeve with a wrench.

[0011] Preferably, a convex block is installed at one end of the cylindrical pin away from the capacitor body for limiting the threaded sleeve and the hexagonal sleeve to prevent them from falling off.

[0012] Preferably, the plug rod is inserted through the circuit board.

[0013] Preferably, the connecting rod is threadedly connected to the end of the plug rod with the threaded hole through bolts. The two ends of the connecting rod are connected to the plug rod through bolts, further strengthening the connection stability between the capacitor body and the circuit board.

[0014] Preferably, the threaded card slot is meshed and clamped with the outer wall of the threaded sleeve, enabling the connecting rod to position the threaded sleeve, avoiding the risk of the threaded sleeve rotating and loosening, which may cause the capacitor to shake and drop.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides an AC capacitor for preventing dropping, having the following beneficial effects:

[0017] Through the design, after the threaded sleeve is connected to the circuit board, the threaded card slot on the connecting rod is fitted to the root of the threaded sleeve protruding from the circuit board, and the thread in the threaded card slot clamps the threaded sleeve to prevent the threaded sleeve from rotating. Then, the bolts at both ends of the connecting rod are screwed, so that the bolts are connected to the threaded holes at the ends of the plug rod, thereby positioning the connecting rod. At this time, after the capacitor body is connected and fixed to the circuit board through the threaded sleeve, the connecting rod positions the threaded sleeve, and the threaded sleeve will not rotate and loosen, thereby avoiding the risk of the capacitor shaking and dropping. Moreover, the two ends of the connecting rod are connected to the plug rod through bolts, further strengthening the connection stability between the capacitor body and the circuit board. And this mechanism does not require preset fixing parts on the circuit board, reducing the occupied space during the installation of the capacitor body, and the installation is quick and convenient. Brief Description of the Drawings

[0018] Figure 1 Fig. is a three-dimensional structural schematic diagram of an AC capacitor provided by an embodiment of the present application to prevent dropping.

[0019] Figure 2 Fig. is an installation structure diagram of an AC capacitor provided by an embodiment of the present application to prevent dropping.

[0020] Figure 3 Fig. is an exploded view of the structure of an AC capacitor provided by an embodiment of the present application to prevent dropping.

[0021] In the figure: 1. Circuit board; 2. Capacitor body; 3. Annular groove; 4. Snap ring; 5. Plug rod; 6. Threaded hole; 7. Cylindrical pin; 8. Protrusion; 9. Threaded sleeve; 10. Hexagonal sleeve; 11. Connecting rod; 12. Threaded card slot; 13. Bolt. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides a technical solution, an AC capacitor for preventing dropping. Please refer to Figure 1 、 Figure 3 and includes a circuit board 1 and a capacitor body 2. One end of the capacitor body 2 is provided with a cylindrical pin 7, a threaded sleeve 9 is sleeved on the cylindrical pin 7. An annular groove 3 is formed on the peripheral side of the capacitor body 2, a snap ring 4 is sleeved in the annular groove 3, a plug rod 5 is installed on the outer wall of the snap ring 4, the plug rod 5 is inserted through the circuit board 1, a threaded hole 6 is formed at one end of the plug rod 5, a connecting rod 11 is arranged at the end of the plug rod 5 with the threaded hole 6, bolts 13 are threadedly connected to both ends of the connecting rod 11, and a threaded card slot 12 is formed on the connecting rod 11.

[0024] Please refer to Figure 2 、 Figure 3, one end of the threaded sleeve 9 is provided with a hexagonal sleeve 10. The threaded sleeve 9 and the hexagonal sleeve 10 are integrally connected. The maximum diameter of the hexagonal sleeve 10 is the same as the diameter of the threaded sleeve 9. The hexagonal sleeve 10 and the threaded sleeve 9 are rotatably sleeved on the cylindrical pin 7. When the threaded sleeve 9 is threadedly connected to the circuit board 1, the rotation of the threaded sleeve 9 can be realized by rotating the hexagonal sleeve 10 with a wrench. One end of the cylindrical pin 7 away from the capacitor body 2 is provided with a convex block 8 for limiting the threaded sleeve 9 and the hexagonal sleeve 10 to prevent them from falling off. The connecting rod 11 is threadedly connected to one end of the insertion rod 5 with a threaded hole 6 through a bolt 13. The two ends of the connecting rod 11 are connected to the insertion rod 5 through bolts 13, further strengthening the stability of the connection between the capacitor body 2 and the circuit board 1. The threaded card slot 12 is engaged and clamped with the outer wall of the threaded sleeve 9, enabling the connecting rod 11 to position the threaded sleeve 9, preventing the threaded sleeve 9 from rotating self - loosening and causing the risk of the capacitor shaking and falling.

[0025] This utility model includes a circuit board 1 and a capacitor body 2. One end of the capacitor body 2 is provided with a cylindrical pin 7. A threaded sleeve 9 and a hexagonal sleeve 10 are sleeved on the circumference of the cylindrical pin 7. The hexagonal sleeve 10 and the threaded sleeve 9 are integrated. One end of the cylindrical pin 7 away from the capacitor body 2 is provided with a convex block 8 for limiting the threaded sleeve 9 and the hexagonal sleeve 10 to prevent them from falling off;

[0026] Threadedly connect one end of the cylindrical pin 7 with the threaded sleeve 9 to the circuit board 1. The rotation of the threaded sleeve 9 can be realized by rotating the hexagonal sleeve 10 with a wrench. When the threaded sleeve 9 is threadedly connected to the circuit board 1, the insertion rods 5 on both sides of the snap ring 4 clamped in the annular groove 3 on the circumference of the capacitor body 2 are inserted through the circuit board 1, and a threaded hole 6 is opened at one end of the insertion rod 5;

[0027] After the threaded sleeve 9 is connected to the circuit board 1, fit the threaded card slot 12 on the connecting rod 11 with the root of the threaded sleeve 9 protruding from the circuit board 1, and the threads in the threaded card slot 12 clamp the threaded sleeve 9 to prevent the threaded sleeve 9 from rotating. Then, turn the bolts 13 at both ends of the connecting rod 11 so that the bolts 13 are connected to the threaded holes 6 at the ends of the insertion rods 5, thereby positioning the connecting rod 11. At this time, after the capacitor body 2 is connected and fixed to the circuit board 1 through the threaded sleeve 9, the connecting rod 11 positions its threaded sleeve 9, and the threaded sleeve 9 will not rotate and become loose, thus avoiding the risk of the capacitor shaking and falling. Moreover, the two ends of the connecting rod 11 are connected to the insertion rods 5 through bolts 13, further strengthening the stability of the connection between the capacitor body 2 and the circuit board 1. And this mechanism does not require preset fixing parts on the circuit board 1, reducing the occupied space during the installation of the capacitor body 2, and the installation is fast and convenient.

[0028] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0029] In this text, unless otherwise clearly specified and defined, terms such as "installed", "set", "connected", "fixed", "swivelled" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An AC capacitor that prevents falling, comprising a circuit board (1) and a capacitor body (2), characterized in that: A cylindrical pin (7) is installed at one end of the capacitor body (2), a threaded sleeve (9) is sleeved on the cylindrical pin (7), an annular groove (3) is provided on the circumference of the capacitor body (2), a retaining ring (4) is sleeved in the annular groove (3), an insert rod (5) is installed on the outer wall of the retaining ring (4), a threaded hole (6) is provided at one end of the insert rod (5), a connecting rod (11) is provided at one end of the insert rod (5) with the threaded hole (6), bolts (13) are threadedly connected at both ends of the connecting rod (11), and a threaded retaining groove (12) is provided on the connecting rod (11).

2. The AC capacitor for preventing from falling according to claim 1, characterized in that: A hexagonal sleeve (10) is installed at one end of the threaded sleeve (9); the threaded sleeve (9) and the hexagonal sleeve (10) are connected in one piece; the maximum diameter of the hexagonal sleeve (10) is the same as the diameter of the threaded sleeve (9); the hexagonal sleeve (10) and the threaded sleeve (9) are rotatably sleeved with the cylindrical pin (7).

3. The AC capacitor for preventing from falling according to claim 1, characterized in that: A bump (8) is mounted on one end of the columnar pin (7) away from the capacitor body (2).

4. The AC capacitor for preventing from falling according to claim 1, characterized in that: The threaded sleeve (9) is threadably connected to the circuit board (1).

5. The AC capacitor for preventing from falling according to claim 1, characterized in that: The insertion rod (5) is inserted through the circuit board (1).

6. The AC capacitor for preventing from falling according to claim 1, characterized in that: The connecting rod (11) is threadedly connected to one end of the insert rod (5) with a threaded hole (6) via a bolt (13).

7. The AC capacitor for preventing from falling according to claim 1, characterized in that: The threaded groove (12) is engaged with the outer wall of the threaded sleeve (9).

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