ESR value detection equipment for three-phase capacitor

Abstract

The utility model discloses an ESR value detection device for a three-phase capacitor. The ESR value detection device comprises a base; the rotating disc is rotatably arranged at the top of the base around the vertical axis, the rotating disc is provided with a plurality of clamping devices, the multiple clamping devices are arranged around the vertical axis, the clamping devices are arranged in a self-rotating mode, and the self-rotating axes of the clamping devices are parallel to the vertical axis; and the detection device comprises a plurality of ESR detection meters, the plurality of ESR detection meters are located on the side, away from the base, of the rotating disc and are arranged around the vertical axis, and a probe of an ESR detector can move in the vertical direction. According to the ESR value detection equipment for the three-phase capacitor, the detection efficiency of the ESR value of the three-phase capacitor is improved, the ESR value detection equipment is simplified, and the cost of the ESR value detection equipment for the three-phase capacitor is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the capacitor field generally, especially three -phase capacitor is used ESR value detection equipment. BACKGROUND

[0002] Three -phase capacitor usually uses detection equipment to detect its ESR value before factory shipment to ensure the factory shipment quality of three -phase capacitor. Three -phase capacitor has three wiring terminals, and each adjacent two wiring terminals form a detection terminal group, that is, three -phase capacitor has three detection terminal groups. The existing detection equipment includes rotatable turntable, the turntable is equipped with a plurality of clamping jaws arranged along the circumference, and the upper side of the turntable is equipped with a plurality of ESR tables arranged along the circumference of the turntable, and the probes of the ESR tables are liftable. The detection process of the above-mentioned detection equipment for the ESR value of three -phase capacitor is as follows: the turntable is intermittently rotated according to the set angle step, and the three -phase capacitor clamped by the clamping jaw is located below the probe of different ESR tables after each rotation of the turntable, and different ESR tables measure each detection terminal group of the three -phase capacitor through the respective probe.

[0003] However, the above-mentioned ESR value detection equipment for three -phase capacitor at least has the following problems: three ESR tables are required during the measurement process of each three -phase capacitor, and the turntable needs to be rotated multiple times, resulting in low detection efficiency and high equipment cost. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a three -phase alternating -current capacitor.

[0005] The application provides an ESR value detection equipment for three -phase capacitor, comprising:

[0006] a base;

[0007] a turntable rotatably arranged on the top of the base about a vertical axis, the turntable is equipped with a plurality of clamping devices and the plurality of clamping devices are arranged around the vertical axis, the clamping device is rotatably arranged, and the rotation axis of the clamping device is parallel to the vertical axis;

[0008] a detection device, the detection device comprises a plurality of ESR detection tables, the plurality of ESR detection tables are located on the side of the turntable away from the base and are arranged around the vertical axis, and the probe of the ESR detector is movable in the vertical direction.

[0009] Further, a plurality of limiting assemblies are arranged on the side of the rotating disc away from the base and correspond to the plurality of clamping devices one by one, the limiting assembly comprises a mounting member and a limiting member, the mounting member is arranged on one side of the clamping device, the mounting member is provided with a limiting through hole, the limiting member is movably arranged in the mounting member along the vertical direction, so that the three terminal ends of the three-phase capacitor clamped by the clamping device are located in the limiting through hole or separated from the limiting through hole, and the three terminal ends located in the limiting through hole are arranged close to the hole wall of the limiting through hole.

[0010] Further, the limiting member comprises a sleeve, the sleeve is movably arranged on the outer periphery of the mounting member, and the limiting assembly further comprises a first driving mechanism arranged on the mounting member, the first driving mechanism is drivingly connected with the limiting member to drive the limiting member to move.

[0011] Further, the limiting member further comprises a mounting block and a limiting plate, the mounting block is arranged on the outer periphery side of the sleeve, and the limiting plate is movably arranged in the mounting block along the horizontal direction.

[0012] Further, the mounting block is provided with a sliding groove penetrating through, and the limiting plate is inserted into the sliding groove and slidably matched with the sliding groove.

[0013] Further, the limiting member and the mounting member are separably arranged.

[0014] The ESR value detection device for the three-phase capacitor provided by the present application can be arranged by the clamping device and the clamping device is parallel to the vertical rotating axis of the rotating disc, the three-phase capacitor can rotate under the driving of the clamping device to change the position of the three terminal end groups, so that one ESR detection table can complete the detection of the three terminal end groups of the same three-phase capacitor, and the rotating disc does not need to rotate when different terminal end groups of the three-phase capacitor are detected, which not only improves the detection efficiency of the ESR value of the three-phase capacitor, but also simplifies the ESR value detection device, and further reduces the cost of the ESR value detection device for the three-phase capacitor. BRIEF DESCRIPTION OF DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0016] Figure 1 The structure of the rotating disc provided by the embodiment of the present application is shown in the top view schematic diagram;

[0017] Figure 2 The structure of the rotating disc provided by the embodiment of the present application is shown in the top view schematic diagram; Figure 1 The structure shown in the figure after the clamping device rotates 120°;

[0018] Figure 3 The structure of the limiting assembly provided by the embodiment of the present application is shown in the top view schematic diagram;

[0019] Figure 4 A schematic view of the limiting assembly and the limiting cooperation between the three-phase capacitor is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0020] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that only parts related to the present application are shown in the drawings for ease of description.

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0022] Please refer to Figures 1-2 The ESR value detection device for the three-phase capacitor 200 is provided by the embodiments of the present application, the three-phase capacitor 200 includes a cylindrical capacitor body 210 and three wire terminals 220 arranged at one end of the capacitor body 210, the three wire terminals 220 surround the axis of the capacitor body 210 and are distributed in an equilateral triangle shape, and the spacing between the three wire terminals 220 and the axis of the capacitor body 210 is the same. Any two adjacent wire terminals 220 form a wire terminal group 230, that is, the three-phase capacitor 200 forms three wire terminal groups 230. The ESR value detection device for the three-phase capacitor 200 includes a base, a turntable 100 and a detection device, the turntable 100 is rotatably arranged on the top of the base about a vertical axis, and the detection device includes a plurality of ESR detection tables, the plurality of ESR detection tables are arranged on the side of the turntable 100 away from the base and surround the vertical axis. The turntable 100 is provided with a plurality of clamping devices 110, and the plurality of clamping devices 110 are arranged around the vertical axis, the clamping device 110 is rotatably arranged, and the rotation axis of the clamping device 110 is parallel to the vertical axis. The ESR detector has two probes, and the two probes are movable in the vertical direction to realize contact with one wire terminal group 230 in the three-phase capacitor 200 or to be arranged separately from the wire terminal group 230. When the two probes are in conductive contact with two wire terminals 220 in the wire terminal group 230, a detection loop is formed between the capacitor and the ESR detection table at this time, and the ESR detection table can complete the measurement of the ESR value; when the two probes are arranged separately from the wire terminal group 230, the connection between the ESR detection table and the three-phase capacitor 200 is disconnected at this time.

[0023] The test process of the three-phase capacitor 200 used ESR value detection equipment is as follows: the three-phase capacitor 200 to be detected is loaded into the clamping device 110 at the same set position, the rotating disc 100 is rotated to set an angle so that the clamping device 110 is located below the ESR detection table, at this time, one of the terminal groups 230 in the three-phase capacitor 200 is located directly below the two probes of the ESR detection table, the two probes of the ESR detection table move downward along the vertical direction to respectively conductively contact the two terminal groups 230 in the terminal group 230 and form a detection loop, and after the ESR detection table completes detection, the two probes move upward to reset; then the clamping device 110 rotates 120°, at this time, another terminal group 230 in the three-phase capacitor 200 is located directly below the two probes of the ESR detection table, the two probes of the ESR detection table move downward along the vertical direction to respectively conductively contact the two terminal groups 230 in the terminal group 230 and form a detection loop, and after the ESR detection table completes detection, the two probes move upward to reset; then the clamping device 110 continues to rotate 120°, at this time, the last terminal group 230 in the three-phase capacitor 200 is located directly below the two probes of the ESR detection table, the two probes of the ESR detection table move downward along the vertical direction to respectively conductively contact the two terminal groups 230 in the terminal group 230 and form a detection loop, and after the ESR detection table completes detection, the two probes move upward to reset.

[0024] In the embodiment, the clamping device 110 can drive the three-phase capacitor 200 clamped thereby to rotate to change the positions of the three terminal groups 230, so that one ESR detection table can complete detection of the three terminal groups 230 of the same three-phase capacitor 200, and the rotating disc 100 does not need to rotate when different terminal groups 230 of the three-phase capacitor 200 are detected, which not only improves the detection efficiency of the ESR value of the three-phase capacitor 200, but also simplifies the ESR value detection equipment, and further reduces the cost of the three-phase capacitor 200 used ESR value detection equipment.

[0025] Optionally, the clamping device 110 can be a mechanical arm with rotatable clamping jaws or the like. The mechanical arm is a general structure in the art, and will not be described herein. It should be understood that the clamping device 110 only clamps part of the three-phase capacitor 200, for example, the bottom end or the middle part of the three-phase capacitor 200.

[0026] Optionally, the middle part of the rotating disc 100 is provided with a through hole 101, the top part of the base is provided with a mounting frame, the mounting frame comprises a first frame body and a second frame body, the first frame body is fixedly arranged on the base through the through hole 101, a plurality of ESR detection tables are arranged on the first frame body, the probes of the ESR detection tables are arranged on the second frame body, the first frame body and the second frame body are connected through a linear actuator to drive the second frame body to move in the vertical direction, and then drive the probes of the ESR detection tables to move in the vertical direction. The linear actuator can be, but is not limited to, a pneumatic cylinder, an electric push rod, etc.

[0027] Please continue to refer to Figures 3-4 In some embodiments of the present application, the clamping device 110 will loosen after long-term use, resulting in excessive tilting of the three-phase capacitor 200 clamped on the clamping device 110 during rotation, and then invalid detection may occur. Therefore, the detection equipment further comprises a plurality of limiting assemblies 120, which are arranged on the side of the rotating disc 100 away from the base and correspond to the plurality of clamping devices 110 one by one. The limiting assembly 120 comprises a mounting piece 121 and a limiting piece 122, the mounting piece 121 is arranged on the rotating disc 100 and located on one side of the clamping device 110, the mounting piece 121 is provided with a limiting through hole 1224, and the limiting piece 122 is located on the side of the clamping device 110 away from the base. The limiting piece 122 is movably arranged on the mounting piece 121 in the vertical direction, so that the limiting piece 122 has a limiting position and an avoiding position. When in the limiting position, the three connecting terminals 220 of the three-phase capacitor 200 clamped by the clamping device 110 are located in the limiting through hole 1224, and the three connecting terminals 220 are arranged close to the hole wall of the limiting through hole 1224, so as to limit the displacement of the three-phase capacitor 200 in the direction perpendicular to the axis, and prevent the three-phase capacitor 200 clamped by the clamping device 110 from tilting excessively; when in the avoiding position, the limiting through hole 1224 is located above the three connecting terminals 220, i.e. the limiting plate 1223 and the three-phase capacitor 200 are arranged separately, so as to form a space for the three-phase capacitor 200 to enter and exit the clamping device 110.

[0028] Optionally, the limiting assembly 120 can be located on the side of the corresponding clamping device 110 close to the vertical axis.

[0029] In some embodiments of the present application, the limiting piece 122 comprises a sleeve 1221, the sleeve 1221 is movably sleeved on the outer periphery of the mounting piece 121, and the limiting assembly 120 further comprises a first driving mechanism arranged on the mounting piece 121, the first driving mechanism is drivingly connected with the limiting piece 122 to drive the limiting piece 122 to move. The above-mentioned limiting assembly 120 has simple structure and is easy to realize.

[0030] The first driving mechanism can be, but is not limited to, a cylinder, a screw driving mechanism, an electric push rod, etc. In order to facilitate the installation of the first driving mechanism, the mounting member 121 can be a mounting plate.

[0031] In some embodiments of the present application, in order to facilitate the three-phase capacitor 200 to enter and exit the clamping device 110, the limiting member 122 further comprises a mounting block 1222 and a limiting plate 1223. The mounting block 1222 is arranged on the outer circumferential side of the sleeve 1221, and the limiting plate 1223 is movably arranged on the mounting block 1222 along the horizontal direction to switch between a first position and a second position. When in the first position, the limiting plate 1223 and the projection of the clamping device 110 in the vertical direction are arranged at intervals, and at this time, the limiting plate 1223 is arranged offset above the clamping device 110 to facilitate the three-phase capacitor 200 to enter and exit the clamping device 110. When in the second position, the limiting through hole 1224 and the projection of the clamping device 110 in the vertical direction intersect, and the limiting member 122 moves between the limiting position and the avoiding position when the limiting plate 1223 is in the second position.

[0032] Specifically, when the three-phase capacitor 200 is not loaded into the clamping device 110, the limiting plate 1223 is in the first position; after the three-phase capacitor 200 is loaded into the clamping device 110, the limiting plate 1223 is switched to the second position; and after the ESR value detection is completed, the limiting plate 1223 is switched to the first position.

[0033] Optionally, the mounting block 1222 is provided with a through sliding groove, and the limiting plate 1223 is inserted into the sliding groove and slidably matched with the sliding groove. The mounting block 1222 is provided with a second driving mechanism, and the second driving mechanism and the limiting plate 1223 are drivingly connected to drive the limiting plate 1223 to move.

[0034] In some embodiments of the present application, the limiting member 122 and the mounting member 121 are separably arranged to facilitate the replacement of the limiting member 122 with different sizes of limiting through holes 1224, thereby improving the versatility of the limiting assembly 120.

[0035] Optionally, the first driving mechanism is located below the sleeve 1221 and detachably fixedly connected with the sleeve 1221, such as screwing, etc. When it is necessary to replace the limiting member 122, the first driving mechanism and the sleeve 1221 can be separated, and then the sleeve 1221 is detached from the top of the mounting plate to complete the replacement of the limiting member 122.

[0036] It should be understood that the above-mentioned terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the orientation terms "inner" and "outer" refer to the inner and outer of the contour of each component itself. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features.

[0037] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", etc. can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned 90 degrees rotated or in other orientations, and the spatial relative descriptions used herein are interpreted accordingly.

[0038] The above description is only the preferred embodiment of the present application and the explanation of the technical principles applied. Those skilled in the art should understand that the utility model range involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the utility model concept. For example, the technical solutions formed by mutually replacing the above features with the technical features disclosed in the present application (but not limited to) having similar functions.

Claims

1. An ESR value detection device for three-phase capacitors, characterized in that, The utility model relates to a three-phase capacitor ESR detection device, comprising: a base; a rotating disc rotatably arranged on the top of the base around a vertical axis, the rotating disc being provided with a plurality of clamping devices arranged around the vertical axis, the clamping devices being arranged rotatably, and the rotation axes of the clamping devices being parallel to the vertical axis; a detection device comprising a plurality of ESR detection tables arranged on the side of the rotating disc away from the base and around the vertical axis, the probes of the ESR detection tables being movable in the vertical direction.

2. The ESR value detecting device for a three-phase capacitor according to claim 1, characterized by, Further comprising a plurality of limiting assemblies arranged on the side of the rotating disc away from the base and corresponding to the clamping devices one by one, the limiting assembly comprising a mounting member and a limiting member, the mounting member being arranged on one side of the clamping device, the mounting member being provided with a limiting through hole, and the limiting member being movably arranged in the vertical direction on the mounting member to make the three connecting terminals of the three-phase capacitor clamped by the clamping device be arranged in the limiting through hole or separated from the limiting through hole, wherein the three connecting terminals arranged in the limiting through hole are arranged close to the hole wall of the limiting through hole.

3. The ESR value detecting device for a three-phase capacitor according to claim 2, characterized by The limiting member comprises a sleeve movably arranged on the outer periphery of the mounting member, and the limiting assembly further comprises a first driving mechanism arranged on the mounting member, the first driving mechanism being drivingly connected with the limiting member to drive the limiting member to move.

4. The ESR value detecting device for a three-phase capacitor according to claim 3, characterized by The limiting member further comprises a mounting block and a limiting plate, the mounting block being arranged on the outer periphery side of the sleeve, and the limiting plate being movably arranged in the horizontal direction on the mounting block.

5. The ESR value detecting device for a three-phase capacitor according to claim 4, characterized by The mounting block is provided with a sliding groove penetrating through, and the limiting plate is inserted into the sliding groove and slidingly matched with the sliding groove.

6. The ESR value detecting device for a three-phase capacitor according to claim 2, characterized by The limiting member and the mounting member are arranged separably.

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