CN211402432U - Wiring assembly and stator testing device with same - Google Patents

Abstract

The utility model provides a wiring assembly and a stator testing device with the wiring assembly, which can realize reliable and convenient electric connection between stator wiring and testing wiring, wherein the wiring assembly comprises a base for limiting at least one wiring cavity, and a first conductive piece is fixedly arranged in each wiring cavity; a movable member including a clamp, the movable member being disposed in the wiring cavity and movable between an engaged position and a disengaged position with respect to the first conductive piece; a resilient element biasing the movable member toward the engaged position, the clamp member being separated from the first conductor by an external force in the disengaged position to provide clearance for accommodating the stator wiring; in the engaged position, the clamp member and the first conductive member are engaged against each other such that the stator wire is clamped.

Description

Wiring assembly and stator testing device with same

Technical Field

The utility model relates to a wiring subassembly and stator testing arrangement who has this wiring subassembly.

Background

The motor consists of a rotor and a stator, and the performance of the stator is very important to the performance of the motor, so that the performance of the stator of the motor needs to be tested in actual production. Stator testing devices are commonly used to test the performance of the stator of an electric machine, the testing requiring electrical connection of the stator testing device's test circuitry to the terminals of the stator windings.

At present, the connection is realized by adopting a jointing clamp, namely, a plurality of testing wirings of the testing circuit are respectively and electrically connected with stator wirings through a plurality of jointing clamps. In this case, a plurality of binding clips are suspended near the stator, inevitably pulling the stator wiring, easily causing the stator wiring or the test wiring to be pulled apart. Meanwhile, a plurality of wiring clamps are not insulated and protected, and short circuit danger caused by mistaken touch is possible in actual operation. In addition, the contact area of the binding clip is limited, and the binding clip can be detached from the binding clip and needs to clamp the binding clip again.

Therefore, in view of the above problems, there is a need for a reliable and easy-to-operate wiring assembly and a stator testing device having the same.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a satisfy wiring subassembly of above-mentioned needs and have stator testing arrangement of this wiring subassembly.

According to an aspect of the utility model, a provide a wiring subassembly, include: the base defines at least one wiring cavity, and a first conductive piece is fixedly arranged in each wiring cavity; a movable member including a clamp, the movable member being disposed in the wiring cavity and movable between an engaged position and a disengaged position with respect to the first conductive piece; a resilient element biasing the movable member toward the engaged position, wherein in the disengaged position the clamp member is separated from the first conductive member by an external force providing clearance to accommodate the stator wiring; in the engaged position, the clamp member and the first conductive member are engaged against each other such that the stator wire is clamped.

According to above characteristic, through setting up fixed wiring subassembly, the utility model discloses an embodiment can avoid probably the wire that arouses by mobilizable binding clip problem of breaking to realize reliable wiring. When wiring is required, a user can apply force to the clamping piece to separate the clamping piece from the first conductive piece so as to provide a gap for accommodating the stator wiring, the stator wiring is placed into the gap at the moment, and the force is removed, and the clamping piece and the first conductive piece are abutted and jointed under the action of the applied contact force of the elastic element so that the stator wiring is clamped between the clamping piece and the first conductive piece, so that quick and convenient wiring is realized.

In some embodiments, the base further comprises a plurality of partition walls made of an insulating material, the plurality of partition walls dividing the base into a plurality of wiring cavities.

According to the above features, the plurality of wiring cavities are separated by the insulating material, so that the insulativity between different stator wirings is ensured, the danger of mistaken touch and short circuit is prevented, and the reliability is improved.

In some embodiments, at least a portion of a surface of the first conductive member facing the clamping member is provided with a plurality of engagement ridges.

According to the above features, the surface of the first conductive member is provided with the engaging grains, so that more contact points can be provided compared with the contact of a plane surface, and more reliable connection can be realized.

In some embodiments, the cross-sectional shape of the engagement ridge is selected from at least one of the following shapes: zigzag, wave, trapezoid or concave.

In some embodiments, the engagement line includes a notch extending downward from a top surface of the first conductive member through at least a portion of the engagement line, and an opening of the notch is sized to be smaller than an outer diameter of the stator wire.

According to the above feature, providing the recess in the engaging groove, the recess having a size smaller than the outer diameter of the stator wire, makes it possible that the stator wire is accommodated in the recess and kept relatively fixed in position when the clamping member is brought into abutting contact with the first conductive member.

In some embodiments, the clamping member has the same engagement texture as the first conductive member.

According to the above features, the clamping member is also provided with the engaging lines, which can provide more contact points and a larger contact area, contributing to more reliable connection.

In some embodiments, the wire connection assembly further includes a positioning pin disposed on the base, the positioning pin passing through the movable member such that the movable member is pivotable about the positioning pin between the engaged position and the disengaged position.

In some embodiments, the base further comprises a sliding slot in which the movable member is mounted such that the movable member is slidable relative to the base between the engaged position and the disengaged position.

In some embodiments, one of the first conductive member and the clamping member is electrically connected to the test wiring.

In some embodiments, the other of the first conductive member and the clamping member is made of an insulating material.

According to the utility model discloses an aspect provides a stator testing arrangement, including above-mentioned wiring subassembly.

According to the utility model discloses a wiring subassembly and stator testing arrangement who has this wiring subassembly can realize that the reliable electricity between stator wiring and the test wiring is connected to realize the insulation between the stator wiring, wiring subassembly easy operation is convenient, saves the wiring time, and it is efficient to work a telephone switchboard.

Drawings

FIG. 1 illustrates a perspective view of a wire connection assembly according to one embodiment of the present invention;

fig. 2A illustrates a perspective view of a first conductive member according to an embodiment of the present invention;

fig. 2B illustrates a perspective view of a first conductive member according to another embodiment of the present invention;

fig. 3A shows a perspective view of a clamping member according to an embodiment of the invention;

fig. 3B shows a perspective view of a clamping member according to another embodiment of the invention;

FIG. 4 illustrates a cross-sectional view of a wiring assembly in an open position according to one embodiment of the present invention;

figure 5 illustrates a cross-sectional view of a wire termination assembly in an engaged position according to one embodiment of the present invention.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the word "comprise", or "comprises", and the like, means that the element or item preceding the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

The utility model aims at a wiring subassembly and have stator testing arrangement of this wiring subassembly, can realize that the stator wiring is connected with the reliable electricity between the test wiring to realize the insulation between the stator wiring, wiring subassembly easy operation is convenient, saves the wiring time, and it is efficient to work a telephone switchboard.

A wiring assembly 100 according to certain embodiments of the present invention will be described below in conjunction with fig. 1. The following description mainly takes a three-phase ac stator winding (having six stator wires) as an example, and it should be noted that the embodiments of the present invention are not limited thereto.

Fig. 1 shows a perspective view of one embodiment of a wiring assembly 100 according to the present invention. The wiring terminal assembly 100 is adapted to include a base 1, a movable member 2, an elastic member 3, a partition wall 4, a positioning pin 5, and a mounting hole 8. As shown in fig. 1, in the present embodiment, for example, the base 1 includes five partition walls 4, the 5 partition walls 4, together with two side walls of the base 1, partition the base 1 into six wiring cavities, the stator wiring to be tested can be inserted into each wiring cavity, a first conductive member 11 is fixedly disposed in each wiring cavity, the first conductive member 11 can be electrically connected with the test wiring of the stator testing device in any known manner, for example, in the present embodiment, the bottom of the first conductive member 11 is tapped, and the test wiring 7 (not shown) can be electrically connected to the first conductive member 11 by means of screw thread compression. Further, the specific arrangement of the first conductive member 11 will be described later in detail.

The partition walls 4 are made of an insulating material, such as thermosetting plastic, insulating rubber, phenolic plastic (commonly called "bakelite"), and the like, so that effective insulation between the adjacent first conductors 11 can be achieved. In this embodiment, the partition wall 4 is made of blackwood having a good insulation property.

The wiring member 100 is connected to a test stand (not shown) through mounting holes 8 provided at both sides of the base 1, and the mounting holes 8 may be through holes or screw holes.

The movable member 2 is arranged in the wiring cavity and is movable with respect to the first conductor 11 between an engaged position and a disengaged position, the movable member 2 being movably arranged in the wiring cavity of the base 1 in any known manner. In the present embodiment, the movable member 2 and the base 1 each have a through hole therethrough, and the positioning pin 5 movably sets the movable member 2 in the base 1 through the through holes of the movable member 2 and the base 1 so that the movable member 2 is pivotable about the positioning pin 5 between the engaged position and the disengaged position. The movable member 2 may include a clamping member 21 or be integrally formed with the clamping member 21 on a side thereof facing the first conductive member 11 for making contact with the first conductive member 11 at the engagement position, and a detailed arrangement of the clamping member 21 will be described later.

The elastic element 3 is used to bias the movable member 2 towards the engagement position, for example, as shown in the figure, one end of the elastic element 3 is fixedly connected with the base 1, the other end of the elastic element 3 is fixedly connected with the movable member 2, and the elastic element 3 is configured to apply a contact force to the movable member 2 at the engagement position (the position shown in fig. 1) so that the clamping piece 21 of the movable member 2 is held in abutting engagement with the first conductive piece 11 so that the stator wiring 6 (not shown) is clamped. Further, the external force overcomes the contact force of the elastic member 3 by the external force, so that the clamping piece 21 of the movable member 2 is separated from the first conductive member 11 to provide a space for accommodating the stator wire 6, and the stator wire 6 can be removed from or inserted into the wire assembly 100.

The elastic member 3 may employ any elastic member known to those skilled in the art, such as a coil spring, a compression spring, a leaf spring, a torsion spring, an elastic rubber, and the like. For example, in the embodiment shown in fig. 4, the elastic element 3 is a coil spring, and is disposed at the other end of the movable member 2 opposite to the clamping member 21, and the spring is in a compressed state at the engagement position to provide a contact force for rotating the movable member 2 in the clockwise direction in fig. 1, thereby bringing the clamping member 21 into abutting engagement with the first conductive member 11. At the same time, the spring is under further compression by the external force at the off position, and when the external force is removed, the spring can provide a force to return to the engaged position, so that the clamping member 21 is brought into abutting engagement with the first conductive member 11 again. However, other types of springs may be employed, such as a torsion spring about the pivot axis of the movable member 2, and further, if the movable member 2 is moved between the engaged position and the disengaged position by translation, a tension spring or a compression spring may be employed to bias the movable member 2 toward the engaged position. The present invention is not limited to these specific spring forms.

The first conductive member 11 may be made of a known conductive material, such as copper, aluminum, a copper alloy, or an aluminum alloy, and in this embodiment, the first conductive member 11 is made of copper and is made in a copper block shape.

The material of the clamping member 21 is not limited, and may be made of the same conductive material as the first conductive member 11 or an insulating material. In the present embodiment, it is preferable to use the same copper as the first conductive member 11, and also to make it in a copper block shape.

In addition, the clamping member 21 of the movable member 2 may also be connected to a test wire, in which case the first conductive member 11 may be insulating in nature, while the clamping member 21 may be conductive.

The above illustrates the wire connecting assembly 100 according to an exemplary embodiment of the present invention, wherein the movable member 2 is pivotally disposed on the base 1, it should be noted that the present invention is not limited thereto, and the movable member 2 can also be movably disposed on the base 1 in other manners, for example, the base 1 can include a sliding groove, and the movable member 2 is installed in the sliding groove, so that the movable member 2 can slide between the engaging position and the disengaging position relative to the base 1.

The first conductive member 11 according to some embodiments of the present invention will be described below with reference to fig. 2A to 2B.

As shown in fig. 2A, at least a part of the surface of the first conductive member 11 facing the clamping member 21 is provided with a plurality of engagement ridges 12. The engagement ridge 12 extends downward from the top of the first conductive member 11, and the engagement ridge 12 extends in the lateral direction (as shown in fig. 2A) of the first conductive member 11. The engagement ridge 12 may have at least one of the following shapes in longitudinal section: zigzag, wave, trapezoid or concave. In this embodiment, the longitudinal cross-sectional shape of the joint line 12 is a zigzag shape.

The provision of the plurality of engaging ridges 12 provides more contact points, increasing the contact area and the contact force, and making the clamping of the stator wiring 6 more firm, compared to the case where the engaging ridges 12 are not provided, i.e., when the first conductive member 11 is in planar contact with the clamping member 21.

As shown in fig. 2B, according to another embodiment of the present invention, the first conductive member 11 is further provided with a notch 13 on the basis of the joining line 12 of fig. 2A, the notch extending downward from the top surface of the first conductive member 11 through at least a part of the joining line 12 (not extending through the entire surface of the joining line 12 in fig. 2B). The recess 13 may be made by machining. The notch may have various cross-sectional shapes, for example, in the present embodiment, the cross-sectional shape of the notch 13 is a V-shape, and the angle between the notch 13 and the transverse direction is less than 15 degrees, for example, 10 degrees. The opening size of the notch 13 is set smaller than the outer diameter of the stator wire 6, so that when the stator wire 6 is clamped between the first conductive member 11 and the clamping member 21, the stator wire 6 moves along the surface of the V-shaped notch 13 until moving to the central portion of the V-shaped notch 13, and since the opening size of the notch 13 is smaller than the outer diameter of the stator wire 6, the stator wire 6 also exposes a portion beyond the surface of the engagement line 12, and at this time, the clamping member 21 can clamp the stator wire 6 without the stator wire 6 being disengaged from the engagement surface, thereby achieving reliable contact.

Clamping member 21 according to certain embodiments of the present invention will be described below in conjunction with fig. 3A-3B. According to some embodiments of the present invention, the clamping member 21 may have the same engaging pattern as the first conductive member 11, and thus fig. 3A corresponds to the engaging pattern of the first conductive member 11 of fig. 2A, and fig. 3B corresponds to the engaging pattern of the first conductive member 11 of fig. 2B.

As shown in fig. 3A, the clamping member 21 is provided in a block shape and is fixedly attached to the movable member 2 (not shown in the figure). The clamping member 21 is provided with the same engaging grain 22 as the first conductive member 11 in fig. 2A on the entire surface facing the first conductive member 11, and thus more contact points can be provided, increasing the contact area and the contact force, making the clamping of the stator wire 6 more firm.

As shown in fig. 3B, according to another embodiment of the present invention, the clamping member 21 is further provided with a notch 23 on the basis of the engagement ridge 22 of fig. 3A, the notch extending downward from the top surface of the clamping member 21 through at least a part of the engagement ridge 22 (not extending through the entire surface of the engagement ridge 22 in fig. 3B). In the present embodiment, the shape and position of the notch 23 are the same as and correspond to the notch 13 of the first conductive member 11 in fig. 3A, so that the portion of the stator wire 6 exposed beyond the surface of the engagement line 12 of the first conductive member 11 can be accommodated in the notch 23 of the clamping member 21 when engaged, and at this time, the clamping member 21 and the first conductive member 11 can clamp the stator wire 6 without the stator wire 6 being disengaged from the engagement surface, thereby achieving reliable contact.

The wiring process of the stator wiring 6 will be described below exemplarily with reference to fig. 4 and 5.

As described in the foregoing embodiment, in the non-linear state, the elastic element (spring) 3 applies a contact force to the movable member 2 so that the clamping member 21 is brought into abutting engagement with the first conductive piece 11. When wiring is required, the user can apply a downward force F to the movable member 2, as shown by the arrow in fig. 4, which overcomes the contact force of the spring 3, so that the spring 3 is compressed downward, and further, the movable member 2 is pivoted relative to the base 1 by a certain angle centering on the positioning pin 5, so that the clamping member 21 is separated from the first conductive member 11 and provides a clearance for accommodating the stator wiring 6. At this time, the user holds the force F while inserting the stator wiring 6 into the gap. Thereafter, the force F is released, and the movable member 2 is restored to the engagement position by the contact force of the spring 3, at which time the clamping member 21 is brought into abutting engagement with the first conductive member 11 again and clamps the stator wiring 6, so that the stator wiring 6 is electrically contacted with the first conductive member 11 and is further electrically connected with the test wiring 7 electrically connected to the first conductive member 11, thereby completing the wiring process of the stator wiring 6, and thereafter the stator test process can be started. The whole wiring process is convenient and fast, the operation is simple, and meanwhile, the reliable wiring of the stator wiring 6 can be realized.

According to at least one embodiment of the present invention, there is also provided a stator testing device, including the wiring assembly 100 as described above. The stator testing apparatus generally includes a stator tester, a test station for mounting the wiring assembly 100, and a test stand for placing the stator. The stator tester comprises a test circuit, a display screen, a control system and the like, and a test wiring 7 is led out from the test circuit, so that the stator winding is allowed to be connected into the test circuit through a stator wiring 6 for carrying out required stator test.

To sum up, according to the utility model discloses a wiring subassembly and stator testing arrangement who has this wiring subassembly can realize the stator wiring and test the reliable electricity between the wiring and be connected to realize the insulation between the stator wiring, wiring subassembly easy operation is convenient, saves the wiring time, and it is efficient to work a telephone switchboard.

It should be noted that the illustrated embodiments are exemplary only, and should not be considered as limiting the invention, whose scope is limited only by the appended claims. Numerous variations and modifications may be made to the illustrated embodiments without departing from the scope of the invention.

Claims (11)

1. A wiring assembly (100) for electrically connecting a stator wiring (6) with a test wiring (7), comprising:

a base (1), wherein the base (1) defines at least one wiring cavity, and a first conductive piece (11) is fixedly arranged in each wiring cavity;

a movable member (2), said movable member (2) comprising a clamping element (21), said movable member (2) being arranged in said wiring cavity and being movable between an engaged position and a disengaged position with respect to said first conductor (11);

a resilient element (3), the resilient element (3) biasing the movable member (2) towards the engaged position,

wherein, in the open position, the clamping member (21) is separated from the first conductive member (11) by an external force, providing a clearance for accommodating the stator connection (6); in the engaged position, the clamping member (21) and the first conductive member (11) are in abutting engagement such that the stator wire (6) is clamped.

2. The terminal assembly (100) according to claim 1, wherein the base (1) further comprises a plurality of partition walls (4) made of an insulating material, the plurality of partition walls (4) partitioning the base (1) into a plurality of terminal cavities.

3. The wiring assembly (100) according to claim 1, wherein at least a part of a surface of the first conductive member (11) facing the clamping member (21) is provided with a plurality of engagement ridges (12).

4. The terminal assembly (100) of claim 3, wherein the cross-sectional shape of the engagement ridge (12) is selected from at least one of the following shapes: zigzag, wave, trapezoid or concave.

5. The terminal assembly (100) according to claim 3, wherein the engaging ridge (12) includes a notch (13), the notch (13) extends downward from a top surface of the first conductive member (11) through at least a part of the engaging ridge (12), and an opening size of the notch (13) is set smaller than an outer diameter of the stator wire (6).

6. The wiring assembly (100) according to claim 4 or 5, characterized in that the clamping member (21) has the same engagement grain (12) as the first conductive member (11).

7. The wiring lug assembly (100) of claim 1, further comprising:

a positioning pin (5) provided on the base (1), the positioning pin (5) passing through the movable member (2) such that the movable member (2) is pivotable about the positioning pin (5) between the engaged position and the disengaged position.

8. The terminal assembly (100) of claim 1, wherein the base (1) further comprises a sliding slot in which the movable member (2) is mounted such that the movable member (2) is slidable relative to the base (1) between the engaged and disengaged positions.

9. The wiring assembly (100) of claim 1, wherein one of the first conductive member (11) and the clamping member is electrically connected to the test wiring (7).

10. The wiring assembly (100) of claim 9, wherein the other of the first conductive member (11) and the clamping member (21) is made of an insulating material.

11. A stator testing device comprising the wiring assembly (100) as claimed in any one of claims 1 to 10.

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