Short circuit detection device for large-scale aluminum electrolytic capacitor

Abstract

A short circuit detection device of a large-scale aluminum electrolytic capacitor comprises a lifting cylinder, a connecting plate and a detection assembly. The connecting plate is fixedly arranged on a telescopic rod of the lifting air cylinder, and the detection assembly is connected to the connecting plate; the detection assembly comprises a detection plate and a directional telescopic buffer mechanism; the directional telescopic buffer mechanism comprises a guide rod, a bushing and a pressure spring, the upper end of the guide rod is fixed on the connecting plate, the lower end of the guide rod is provided with a round head bolt, the detection plate is provided with the bushing, and the guide rod is arranged in the bushing and matched with the bushing; and the detection plate and the connecting plate are insulated. According to the utility model, the original clamp is eliminated and replaced by the conductive copper plate; a directional telescopic buffer mechanism is arranged between the conductive copper plate and the connecting plate, and the conductive copper plate can ascend and descend within a certain range; when facing products with different heights and products with different foot types, the structure position does not need to be adjusted frequently, and the situation that product terminals are bent and deformed due to the fact that the detection mechanism is not adjusted in place is avoided.

Description

Technical Field

[0001] The utility model relates to a detection device for aluminum electrolytic capacitors, in particular to a short - circuit detection device for aluminum electrolytic capacitors. Background Art

[0002] Large aluminum electrolytic capacitors mainly refer to horn - type aluminum electrolytic capacitors and bolt - type aluminum electrolytic capacitors; after the core and the aluminum shell of the horn - type aluminum electrolytic capacitor or the bolt - type aluminum electrolytic capacitor are assembled, the resistance value between the polar terminal and the aluminum shell is detected to determine whether there is a short - circuit or open - circuit state.

[0003] As Figure 1 shown, the existing equipment detection mechanism uses clips to clamp the polar terminals, and the conductive sheet contacts the aluminum shell to detect the resistance value between the two by energization. Since the existing equipment detection device has no directional telescopic buffer mechanism for lifting, and the height of each product and the foot shape on the cover plate are not necessarily the same; therefore, when switching products, the base of the lifting cylinder needs to be adjusted up and down; if the foot shapes on the cover plate are different, the angle of the clip also needs to be adjusted. If the adjustment is not in place, it is very easy to cause the bending of the product terminals or the scratching of the upper end face of the aluminum shell by the clip. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a short - circuit detection device for aluminum electrolytic capacitors.

[0005] To solve the above - mentioned technical problem, the technical solution proposed by the utility model is: a short - circuit detection device for large aluminum electrolytic capacitors, including a lifting cylinder, a connecting plate and a detection component; the connecting plate is fixedly arranged on the telescopic rod of the lifting cylinder, and the detection component is connected to the connecting plate; the detection component includes a detection plate and a directional telescopic buffer mechanism; the directional telescopic buffer mechanism includes a guide rod, a bushing and a compression spring, the upper end of the guide rod is fixed on the connecting plate, a round - head bolt is arranged at the lower end of the guide rod, a bushing is arranged on the detection plate, the guide rod is arranged in the bushing and the guide rod matches with the bushing; the detection plate and the connecting plate are insulated from each other.

[0006] For the above - mentioned short - circuit detection device for large aluminum electrolytic capacitors, preferably, an insulating plate is arranged on the connecting plate, and the upper end of the guide rod is fixedly arranged on the insulating plate.

[0007] For the above - mentioned short - circuit detection device for large aluminum electrolytic capacitors, preferably, the upper end of the guide rod is fixedly connected to the connecting plate or the insulating plate through a connecting column.

[0008] For the above - mentioned short - circuit detection device for large aluminum electrolytic capacitors, preferably, the compression spring is arranged between the bushing and the connecting plate or the insulating plate.

[0009] Compared with the prior art, the advantages of the utility model are as follows: the short - circuit detection device of the utility model cancels the original clip and replaces it with a conductive detection plate; a directional telescopic buffer mechanism is arranged between the detection plate and the connection plate, and under the action of the directional telescopic buffer mechanism, the detection plate can lift within a certain range; when facing products of different heights and different pin types, there is no need to frequently adjust the structural position, thus avoiding the situation that the product terminals are bent and deformed due to the improper adjustment of the detection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 FIG. is a schematic structural diagram of the existing short - circuit detection device in the background art.

[0011] Figure 2 FIG. is a schematic structural diagram of the short - circuit detection device for large aluminum electrolytic capacitors in Embodiment 1.

[0012] Figure 3 FIG. is a schematic structural diagram of the directional telescopic buffer mechanism in Embodiment 1.

[0013] Figure 4 FIG. is a schematic structural diagram of the connecting column in Embodiment 1.

[0014] LEGEND DESCRIPTION

[0015] 1. Lifting cylinder; 11. Telescopic rod; 2. Detection plate; 3. Directional telescopic buffer mechanism; 31. Guide rod; 32. Compression spring; 33. Round - head bolt; 34. Bushing; 4. Connection plate; 5. Insulating plate; 6. Connecting column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] For the convenience of understanding the utility model, the following will describe the utility model more comprehensively and meticulously in conjunction with the accompanying drawings of the specification and preferred embodiments, but the protection scope of the utility model is not limited to the following specific embodiments.

[0017] It should be particularly noted that when an element is described as "fixed to, fixedly connected to, connected to, or communicated with" another element, it can be directly fixed, fixedly connected, connected, or communicated to the other element, or it can be indirectly fixed, fixedly connected, connected, or communicated to the other element through other intermediate connecting members.

[0018] Unless otherwise defined, all the professional terms used hereinafter have the same meaning as commonly understood by those skilled in the art. The professional terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the protection scope of the utility model. Embodiment

[0019] As Figures 2 - 4A short - circuit detection device for a large aluminum electrolytic capacitor as shown, includes a lifting cylinder 1, a connecting plate 4 and a detection component; the connecting plate 4 is fixedly arranged on the telescopic rod 11 of the lifting cylinder 1, and the detection component is connected to the connecting plate 4; the detection component includes a detection plate 2 and a directional telescopic buffer mechanism 3; the directional telescopic buffer mechanism 3 includes a guide rod 31, a bushing 34 and a compression spring 32. The upper end of the guide rod 31 is fixed on the connecting plate 4, the lower end of the guide rod 31 is provided with a round - head bolt 33, the detection plate 2 is provided with a bushing 34, the guide rod 31 is arranged in the bushing 34 and the guide rod 31 matches the bushing 34, and the round - head bolt 33 can prevent the bushing 34 from falling off the guide rod 31; the detection plate 2 and the connecting plate 4 are insulated from each other. In this embodiment, when detecting whether the aluminum electrolytic capacitor is short - circuited, there is also a conductive sheet (not shown in the figure) in contact with the aluminum shell of the aluminum electrolytic capacitor, and the resistance value between the conductive sheet and the detection plate 2 is detected by energization to determine whether the aluminum electrolytic capacitor is short - circuited.

[0020] In this embodiment, the detection plate 2 is conductive and can be made of a detection copper plate, and the bushing 34 is a copper bushing 34; in order to ensure the insulation between the detection copper plate and the connecting plate 4, an insulating plate 5 is arranged on the connecting plate 4, and the upper end of the guide rod 31 is fixedly arranged on the insulating plate 5. As Figure 4 shown, in this embodiment, a connecting column 6 is fixedly arranged at the upper end of the guide rod 31, and the insulating plate 5 is fixedly connected to the connecting column 6, and the insulating plate 5 and the connecting plate 4 can be connected by bolts.

[0021] As Figure 3 and Figure 4 shown, in this embodiment, the bushing 34 can move up and down on the guide rod 31; the compression spring 32 is arranged between the bushing 34 and the insulating plate 5; so when testing aluminum electrolytic capacitors of different heights, the detection plate 2 moves downward under the action of the lifting cylinder 1 and contacts the polar terminal. Even if the detection plate 2 further descends under the action of the lifting cylinder 1 and the compression spring 32 retracts on the guide rod 31, the detection plate 2 will not have a great impact on the polar terminal, thus avoiding damage to the polar terminal.

[0022] In this embodiment, the insulating plate 5 can be cancelled, and the upper end of the guide rod 31 is directly connected to the connecting plate 4 through the connecting column 6; at this time, the connecting column 6 or the connecting plate 4 is preferably insulated.

[0023] The short - circuit detection device of the present utility model cancels the original clip and replaces it with the detection plate 2; a directional telescopic buffer mechanism 3 is arranged between the detection plate 2 and the connecting plate 4. Under the action of the directional telescopic buffer mechanism 3, the detection plate 2 can lift within a certain range; when facing products of different heights and different pin types, there is no need to frequently adjust the structural position, thus avoiding the situation where the product terminal is bent and deformed due to improper adjustment of the detection mechanism.

Claims

1. A short circuit detection device for a large aluminum electrolytic capacitor, characterized in that: It includes a lifting cylinder, a connecting plate and a detection component; the connecting plate is fixedly arranged on the telescopic rod of the lifting cylinder, and the detection component is connected to the connecting plate; the detection component includes a detection plate and a directional telescopic buffer mechanism; the directional telescopic buffer mechanism includes a guide rod, a bushing and a compression spring, the upper end of the guide rod is fixed on the connecting plate, the lower end of the guide rod is provided with a round head bolt, the detection plate is provided with a bushing, the guide rod is arranged in the bushing and the guide rod and the bushing are matched; the detection plate and the connecting plate are insulated.

2. The short-circuit detection device for large aluminum electrolytic capacitors according to claim 1, characterized in that: The connecting plate is provided with an insulating plate, and the upper end of the guide rod is fixedly provided on the insulating plate.

3. The short-circuit detection device for large aluminum electrolytic capacitors according to claim 2, characterized in that: The upper end of the guide rod is fixedly connected to the connecting plate or the insulating plate through a connecting column.

4. The short-circuit detection device for large aluminum electrolytic capacitors according to claim 1, characterized in that: The compression spring is arranged between the bushing and the connecting plate or the insulating plate.

Images