Anti-skid shell structure of direct-current capacitor

Abstract

The utility model relates to the technical field of capacitors, in particular to a direct current capacitor anti-skid shell structure which comprises an aluminum shell, a connecting cover plate movably arranged at the top of the aluminum shell and a capacitor body arranged in the aluminum shell, two straight grooves are formed in the inner wall of the aluminum shell, moving blocks are movably arranged in the corresponding straight grooves, springs are arranged in the straight grooves, and the connecting cover plate and the capacitor body are arranged in the aluminum shell. The clamping assembly is arranged on the side face of the moving block and used for clamping and fixing the outer surface of the capacitor body, the capacitor body is clamped through the arranged clamping assembly, when the aluminum shell is collided, the capacitor body moves, the clamping assembly and the moving block can be driven to extrude the spring, and the clamping assembly is clamped through the clamping assembly and used for clamping and fixing the outer surface of the capacitor body. When vibration occurs between the two springs, the vibration effect can be reduced, so that the stress generated by the capacitor body can be reduced, and the outer surface of the capacitor body can be prevented from being damaged by the arc-shaped clamping plates due to the fact that the convex blocks between the two arc-shaped clamping plates slide in the grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, and in particular to an anti-slip shell structure of a DC capacitor. Background Art

[0002] The main purpose of the anti-slip shell structure is to ensure that the capacitor can remain in the predetermined position when subjected to vibration, impact or other external forces to prevent displacement or damage. This usually involves several aspects of the shell design, including the selection of shell materials, the design of shell shape, the optimization of fixing methods and the possible use of buffer materials.

[0003] However, in actual use, existing anti-slip housing structures for DC capacitors usually have multiple ways to fix the DC capacitor inside the housing. For easy installation, most use a clamp and screw structure to fix the DC capacitor inside the housing. This can prevent the capacitor from being displaced when the housing is impacted. However, the clamp fixation method causes the capacitor to directly act on the clamp when an impact occurs. Since most capacitors are made of aluminum, when an impact occurs, the impact on the clamp will cause the capacitor itself to deform, thereby increasing the risk of damage. To this end, we propose an anti-slip housing structure for DC capacitors. Utility Model Content

[0004] A technical problem to be solved by this application is: how to design a non-slip housing structure for a DC capacitor that reduces the effect of stress generated by the capacitor on the fixture during vibration.

[0005] To solve the above technical problems, the present invention provides an anti-slip housing structure for a DC capacitor, comprising an aluminum shell, a connection cover movably disposed on the top of the aluminum shell, and a capacitor body disposed within the aluminum shell, and further comprising:

[0006] Two straight grooves are provided and opened on the inner wall of the aluminum shell;

[0007] A moving block, the moving block being movably arranged inside the corresponding straight slot;

[0008] A spring is provided inside the straight groove and is used to drive the moving block to reset when the moving block is squeezed;

[0009] The clamping assembly is arranged on the side of the moving block and is used to clamp and fix the outer surface of the capacitor body.

[0010] In some embodiments, the clamping assembly includes a moving rod arranged on the side of the moving block, and the end face of the moving rod is provided with an arc-shaped clamping plate, the inner wall of the arc-shaped clamping plate is movably provided on the outer surface of the capacitor body, and the two ends of the arc-shaped clamping plate are respectively provided with a protrusion and a groove. For this purpose, the outer surface of the protrusion is movably provided in the groove opened on the end face of the adjacent arc-shaped clamping plate, and the interior of the aluminum shell is provided with a connecting groove connected to the straight groove.

[0011] In some embodiments, a rubber sheet is provided on the inner wall of the arc-shaped clamping plate, and the side surface of the rubber sheet is closely fitted to the outer surface of the capacitor body.

[0012] In some embodiments, a silicone pad is provided at the bottom of the inner wall of the aluminum shell, and the inner wall of the silicone pad is movably provided on the outer surface of the capacitor body.

[0013] In some embodiments, a limit plate is movably provided on the inner wall of the connecting groove, a screw is movably provided inside the limit plate, a thread groove is opened on the inner wall of the connecting groove, and the outer surface of the screw is threadedly connected to the inner wall of the thread groove.

[0014] In some embodiments, a connecting plate is provided on the end surface of the spring, and the connecting plate is movably provided on the side surface of the moving block away from the side surface of the spring.

[0015] In some embodiments, a sliding assembly is provided on the outer surface of the moving block to reduce the friction between the moving block and the connecting groove and the straight groove. A plurality of circular grooves are provided on the outer surface of the moving block, and the sliding assembly includes balls movably arranged inside the plurality of circular grooves.

[0016] This utility model has at least the following beneficial effects:

[0017] 1. The capacitor body is clamped by the provided clamping assembly. When the aluminum shell is hit, the capacitor body is displaced and drives the moving block to slide inside the straight slot. At this time, when the capacitor body squeezes the clamping assembly, the clamping assembly and the moving block can be driven to squeeze the spring. When the two springs vibrate, the effect of the vibration can be reduced, thereby reducing the stress generated by the capacitor body.

[0018] 2. The two arc-shaped clamping plates connect the capacitor body inside. When the capacitor body moves up and down, the protrusion between the two arc-shaped clamping plates slides inside the groove, which can prevent the outer surface of the capacitor body from being damaged by the arc-shaped clamping plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility;

[0020] Figure 2This is a schematic diagram of the exploded structure of the aluminum shell, capacitor body and clamping assembly of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the entire utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at A;

[0023] Figure 5 Schematic diagram of the structure of the practical clamping assembly;

[0024] Figure 6 This is a schematic diagram of the structure of the movable block, spring and connecting plate of this utility model;

[0025] Figure 7 This is a structural diagram of the practical moving block and sliding assembly.

[0026] In the figure: 1. Aluminum shell; 2. Connecting cover; 3. Straight groove; 4. Clamping assembly; 41. Connecting groove; 42. Arc clamping plate; 43. Bump; 44. Groove; 45. Moving rod; 5. Capacitor body; 6. Spring; 7. Silicone pad; 8. Screw; 9. Limiting plate; 10. Threaded groove; 11. Moving block; 12. Rubber sheet; 13. Connecting plate; 14. Sliding assembly; 141. Circular groove; 142. Ball. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the practical embodiment to clearly and completely describe the technical solutions in the practical embodiment. Obviously, the described embodiment is only a part of the embodiment of this utility, not all of the embodiments. Based on the embodiment of this utility, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility.

[0028] Example 1

[0029] See also Figure 1-6 , this utility provides a technical solution:

[0030] A non-slip housing structure for a DC capacitor includes an aluminum shell 1, a connecting cover plate 2 movably arranged on the top of the aluminum shell 1, and a capacitor body 5 arranged inside the aluminum shell 1. An aluminum sheet connected to the capacitor body 5 is provided on the connecting cover plate 2. The structure also includes:

[0031] Two straight grooves 3 are provided and opened on the inner wall of the aluminum shell 1;

[0032] The moving block 11 is movably arranged inside the corresponding straight slot 3;

[0033] Spring 6, spring 6 is arranged inside the straight groove 3, and is used to drive the moving block 11 to reset when the moving block 11 is squeezed. Two springs 6 are arranged inside each straight groove 3, which can provide a certain buffer space when the moving block 11 vibrates and shakes, thereby reducing the stress generated by its vibration;

[0034] The clamping assembly 4 is arranged on the side of the moving block 11 and is used to clamp and fix the outer surface of the capacitor body 5. The clamping assembly 4 can prevent the aluminum shell 1 from displacement when it is hit.

[0035] The clamping assembly 4 includes a moving rod 45 arranged on the side of the moving block 11, and the end face of the moving rod 45 is provided with an arc-shaped clamping plate 42. The inner wall of the arc-shaped clamping plate 42 is movably provided on the outer surface of the capacitor body 5. The two ends of the arc-shaped clamping plate 42 are respectively provided with a protrusion 43 and a groove 44. For this reason, the outer surface of the protrusion 43 is movably provided inside the groove 44 opened on the end face of the adjacent arc-shaped clamping plate 42. A connecting groove 41 connected to the straight groove 3 is opened inside the aluminum shell 1. There are two arc-shaped clamping plates 42, and the two arc-shaped clamping plates 42 have corresponding grooves 44 and convex plates, which can reduce the stress generated above and below the capacitor body 5.

[0036] The inner wall of the arc-shaped clamping plate 42 is provided with a rubber sheet 12, and the side of the rubber sheet 12 is tightly fitted to the outer surface of the capacitor body 5. The provision of the rubber sheet 12 enables the arc-shaped clamping plate 42 to better clamp the capacitor body 5 to prevent it from falling off during vibration.

[0037] A silicone pad 7 is provided at the bottom of the inner wall of the aluminum shell 1. The inner wall of the silicone pad 7 is movably provided on the outer surface of the capacitor body 5. The setting of the silicone pad 7 enables the bottom of the capacitor body 5 to be connected. When vibrating, it can be reset by the silicone pad 7 to reduce the stress generated.

[0038] A limit plate 9 is movably provided on the inner wall of the connecting groove 41, and a screw 8 is movably provided inside the limit plate 9. A threaded groove 10 is provided on the inner wall of the connecting groove 41, and the outer surface of the screw 8 is threadedly connected to the inner wall of the threaded groove 10. The limit plate 9 is used to limit the moving block 11 inside the straight groove 3.

[0039] The end face of the spring 6 is provided with a connecting plate 13 , which is movably arranged on the side of the moving block 11 away from the side of the spring 6 . The moving block 11 can apply the stress generated by the capacitor body 5 to the spring 6 through the connecting plate 13 .

[0040] When using this device, first open the connection cover 2 and put the capacitor body 5 into the aluminum shell 1, and at the same time put the connection at the bottom of the capacitor body 5 into the inside of the silicone pad 7. At this time, use two arc-shaped clamping plates 42 to move the moving rod 45 and the moving block 11 set on the side of the arc-shaped clamping plate 42. The moving block 11 enters the corresponding connection groove 41 and slides to the bottom of the connection groove 41, thereby entering the inside of the straight groove 3, so that the two connection plates 13 are against both sides of the moving block 11. Then, put the limit plate 9 into the inside of the connection groove 41, and use the screw 8 to pass through the inside of the limit plate 9 and the threaded groove. 10 are connected, and the screw 8 can be tightened inside the threaded groove 10 to complete the limiting effect on the movement of the moving block 11. Therefore, when the aluminum shell 1 is impacted, the two arc-shaped clamps 42 can be moved, and the arc-shaped clamps 42 respectively drive the corresponding moving rods 45 to move, and the moving rods 45 drive the moving block 11 to move. The moving block 11 slides inside the straight groove 3, and can squeeze the connecting plate 13, and transmit the force on the connecting plate 13 to the spring 6, so that the spring 6 is deformed. At this time, the stress generated by the capacitor body 5 on the arc-shaped clamp 42 can be reduced, and the possibility of the capacitor body 5 being damaged by the clamp can be reduced.

[0041] Example 2

[0042] See also Figure 7 , this utility provides a technical solution:

[0043] Different from Example 1, a sliding component 14 is provided on the outer surface of the moving block 11 for reducing the internal friction between the moving block 11 and the connecting groove 41 and the straight groove 3. A plurality of circular grooves 141 are provided on the outer surface of the moving block 11, and the sliding component 14 includes balls 142 movably arranged inside the plurality of circular grooves 141.

[0044] When the moving block 11 is placed into the connecting groove 41, the multiple balls 142 arranged inside the moving block 11 can be rotated by sliding. The balls 142 are in contact with the connecting groove 41 and the inside of the straight groove 3. When the two arc-shaped clamping plates 42 drive the moving block 11 to move inside the straight groove 3, the friction force on the inner wall of the straight groove 3 can be reduced by the balls 142, so that the stress generated by the capacitor body 5 can be quickly eliminated.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-slip housing structure for a DC capacitor, comprising an aluminum shell (1), a connecting cover (2) movably arranged on the top of the aluminum shell (1), and a capacitor body (5) arranged inside the aluminum shell (1), characterized in that: Also included are: Two straight grooves (3) are provided and are opened on the inner wall of the aluminum shell (1); A moving block (11), wherein the moving block (11) is movably arranged inside the corresponding straight slot (3); A spring (6) is provided inside the straight groove (3) and is used to drive the moving block (11) to reset when the moving block (11) is squeezed; A clamping assembly (4) is provided on the side of the moving block (11) and is used to clamp and fix the outer surface of the capacitor body (5).

2. The anti-slip housing structure of a DC capacitor according to claim 1, characterized in that: The clamping assembly (4) includes a moving rod (45) arranged on the side of the moving block (11), the end surface of the moving rod (45) is provided with an arc-shaped clamping plate (42), the inner wall of the arc-shaped clamping plate (42) is movably arranged on the outer surface of the capacitor body (5), and the two ends of the arc-shaped clamping plate (42) are respectively provided with a protrusion (43) and a groove (44), so that the outer surface of the protrusion (43) is movably arranged inside the groove (44) opened on the end surface of the adjacent arc-shaped clamping plate (42), and the interior of the aluminum shell (1) is provided with a connecting groove (41) connected to the straight groove (3).

3. The anti-slip housing structure of a DC capacitor according to claim 2, characterized in that: The inner wall of the arc-shaped clamping plate (42) is provided with a rubber sheet (12), and the side surface of the rubber sheet (12) is tightly fitted to the outer surface of the capacitor body (5).

4. The anti-slip housing structure of a DC capacitor according to claim 3, characterized in that: A silica gel pad (7) is provided at the bottom of the inner wall of the aluminum shell (1), and the inner wall of the silica gel pad (7) is movably provided on the outer surface of the capacitor body (5).

5. The anti-slip housing structure of a DC capacitor according to claim 4, characterized in that: A limit plate (9) is movably provided on the inner wall of the connection groove (41), a screw (8) is movably provided inside the limit plate (9), a thread groove (10) is provided on the inner wall of the connection groove (41), and the outer surface of the screw (8) is threadedly connected to the inner wall of the thread groove (10).

6. The anti-slip housing structure of a DC capacitor according to claim 5, characterized in that: The end surface of the spring (6) is provided with a connecting plate (13), and the connecting plate (13) is movably arranged on the side of the moving block (11) away from the side of the spring (6).

7. The anti-slip housing structure of a DC capacitor according to claim 6, characterized in that: The outer surface of the moving block (11) is provided with a sliding assembly (14) for reducing the internal friction between the moving block (11) and the connecting groove (41) and the straight groove (3); the outer surface of the moving block (11) is provided with a plurality of circular grooves (141); and the sliding assembly (14) includes balls (142) movably arranged inside the plurality of circular grooves (141).

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