JPH0528913Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a stator in which a coil is wound inside the stator core via a terminal plate.

(Prior Art) Generally, in this type of stator, a lead wire for external extraction is connected to a wound coil, and a chiyoke coil for noise removal is connected to this lead wire. Since the lead wire and the chiyoke coil are separated from the entire stator, a means for fixing the lead wire and the chiyoke coil to the stator is necessarily required.

Conventional methods for fixing this type of lead wire include means for fastening each lead wire to a portion of the coil protruding from the terminal plate using a synthetic resin band, for example. As described in Japanese Utility Model Application No. 60-177677, multiple lead wires are tied together using a nearly gate-shaped cord bush that is attached to the winding frame (terminal plate) using a locking claw. This was done by fixing it in place. Furthermore, in the case of fixing the chain yoke coil, it is currently the case that the coil is hooked along the side surface of the stator and across the terminal plates on both end faces.

(Problems to be Solved by the Invention) However, the workability of the former means of tightening each band using a conventional band is very poor, and the latter means of tightening them together using a cord bush. Although these methods can overcome the drawbacks of the former, neither of them still takes any consideration into the stator itself when fixing the stator coil.

Therefore, in view of the above-mentioned conventional drawbacks, the present invention
It is an object of the present invention to provide a stator in which a lead wire connected to the stator and a chiyoke coil can be tied together and fixed by a single clamp member, and to securely fix the lead wire and chiyoke coil and improve the workability thereof. This is the purpose.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a structure in which terminal plates made of insulating material are placed inside a stator core made of laminated steel plates, etc., and are placed on both end faces of the stator core. The stator has a coil wound around the terminal plate, and a clamp member made of an insulating material is removably engaged with the terminal plate, and the coil is fixed to the clamp member by a bent protrusion of the terminal plate. a locking part that surrounds the outer periphery of the coil in a direction substantially perpendicular to the winding direction thereof and elastically pinches the lead wire connected to the coil between the outer periphery of the coil; The gist is that a holding part that surrounds and holds the York coil is integrally formed.

(Function) According to the above-described means, when the clamp member is engaged with the terminal plate, the locking portion of the clamp member elastically compresses the lead wire between the wound coil and the same. The holding portion of the clamp member surrounds and holds the chiyoke coil.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

In the figure, 1 indicates the entire stator, and 2 is a stator core that constitutes the stator 1. The stator core is formed into a substantially cylindrical shape from laminated steel plates stacked to a predetermined thickness, and a coil, which will be described later, is inside the stator core. A protrusion (not shown) in the form of a dovetail or the like is provided as a part to be wound. Note that the stator core 2 has an opposing 2
Two recesses 2a, 2a are formed in the axial direction on the side surfaces of the parts.

The terminal plates 3 are placed in contact with both end surfaces of the stator core 2, and are formed from an insulating material made of synthetic resin into a frame shape that approximately matches the planar shape of the stator core 2. On the outside, two engagement protrusions 5, 5 that are engaged in the two grooves 2a, 2a of the stator core 2, respectively, protrude downward, and on the inside of the same two sides, there are protrusions 5, 5 that are curved and face the inner diameter of the stator core 2. Screen-like guide pieces 6, 6 are erected, and these guide pieces 6,
Projecting pieces 6a, 6a protruding outward from the inner diameter of the stator core 2 are integrally formed at the upper end of the stator core 2, and the base of the guide pieces 6, 6 and the base body 4 between the engaging protrusions 5, 5 is Engagement grooves 7, 7 are formed in the shape of a stepped notch with one side open (in the direction opposite to the guide pieces 6, 6). Further, plug portions 8 to 8 for connecting a wound coil and a lead wire, which will be described later, are protruded from four locations on the upper surface of the base body 4.

The coils 9 are wound (two pieces in this example) between the protrusions inside the stator core 2 through the guide pieces 6, 6 of the terminal plate 3 located on both end faces, and the wound coils 9 The respective end portions 9a, 9a... of the plug portions 8-
It is locked at 8.

As shown in FIG. 1, the clamp member 10 is made of an insulating material made of synthetic resin, and has a base 11 having a U-shaped plan cross section, and a base 11 that protrudes at right angles from the upper ends of both sides of the base 11 to provide elasticity. A pair of engaging protrusions 13, 13 having substantially triangular locking protrusions 12, 12 formed at their tips, and a pair of engaging protrusions 13, 13 having substantially triangular locking protrusions 12, 12 formed at their tips, and a pair of engaging protrusions 13, 13 protruding in the same direction as the engaging protrusions 13, 13 from the upper end of the front piece of the base 11. A locking part 1 for clamping a lead wire, which is provided to protrude diagonally upward in the direction of the direction, has elasticity, and has a tip bent at a substantially right angle.
4, and a pair of locking protrusions 15, 1 that protrude from substantially the lower part of the rear end surfaces of both sides of the base 11 and are imparted with elasticity.
5, and a holding portion 16 for the clamping coil formed by a space surrounded by both side pieces and the front piece of the base 11 and the locking protrusions 15, 15, and the terminal of the clamp member 10. Attachment to the plate 3 is performed by inserting the engaging protrusions 13, 13 into the engaging groove 7 of the terminal plate 3.
Insert the locking protrusion 1 while pressing it inward.
2 and 12 are elastically locked within the engagement groove 7. In this case, the bent tip of the locking part 14 is connected to the protruding piece 6 of the guide piece 6 of the terminal plate 3.
The locking portion 14 and the bent tip are pressed against the outer periphery of the wound coil 9 with elasticity applied thereto.

17 is a lead wire, the end of which is connected to the plug portion 8.
~8 are connected to each end 9a of the coil 9 in a plug-in structure, and a portion near the end is inserted between the outer periphery of the wound coil 9 and the locking part 14 of the clamp member 10. It is clamped and fixed by the locking part 14.

Reference numeral 18 denotes a chain coil connected to the lead wire 17, which is inserted into the holding portion 16 of the clamp member 10, surrounded by the holding portion 16, and elastically held by the locking protrusions 15, 15.

Note that 19 is a through hole formed in the front piece of the clamp member 10.

This example is configured as described above, and its operation will be described in detail.

Now, inside the stator core 2, terminal plates 3 are located on both end surfaces of the stator core 2.
In the stator 1, a coil 9 is wound through the stator 1, a lead wire 17 is connected to each end 9a, 9a, . . . of the coil 9, and a chiyoke coil 18 is connected to the lead wire 17. The lead wire 17 and the chain coil 18 are fixed to the stator 1 using the clamp member 10. First, the terminal plate of the coil 9 around which a part of the lead wire 17 to be fixed is wound is fixed. 3, and while inserting the clamp coil 18 into the holding portion 16 of the clamp member 10, push the engaging protrusions 13, 13 of the clamp member 10 inward to tighten the engagement of the terminal plate 3. When inserted into the mating groove 7 and releasing its compression force, the engaging protrusions 13 are elastically returned to their original states and the locking protrusions 1
2 and 12 are elastically locked in the engagement groove 7,
The clamp member 10 is attached to the terminal plate 3. In this state, the locking portion 14 of the clamp member 10 comes into contact with the outer periphery of the wound coil 9 and is actively pushed outward, so that the locking portion 14 is given elasticity. It is pressed against the outer periphery of the wound coil 9. As a result, the lead wire 17 located on the outer periphery of the coil 9 is clamped and fixed between the resilient locking portion 14 and the outer periphery of the coil 9. On the other hand, the chain coil 18 inserted into the holding part 16 of the clamp member 10 is surrounded by the holding part 16 and elastically fixed by the locking protrusion 15. (See Figure 2 and Figures 3 and 4.) (Effect of the invention) As described above, the present invention provides terminals made of insulating material located inside the stator core made of laminated steel plates, etc., on both end faces of the stator core. A stator with a coil wound through a plate,
A clamp member made of an insulating material is removably attached to the terminal plate, and the clamp member has a bent protrusion of the terminal plate that surrounds the outer periphery of the coil in a direction substantially perpendicular to the winding direction thereof. At the same time, a locking part that elastically presses the lead wire connected to the coil with the outer periphery of the coil, and a holding part that surrounds and holds the check coil connected to the lead wire are integrally formed. Therefore, when the clamp member is attached to the terminal plate, the lead wire is secured by the locking portion that surrounds the outer periphery of the coil in a direction substantially perpendicular to the winding direction of the coil with the bent protrusion of the terminal plate. It is possible to elastically pinch the coil between the coil and the outer periphery of the coil, and also to surround and hold the chiyoke coil by the holding part. This makes it possible to elastically fix the lead wires and hold the chain coil, thereby ensuring the condition and improving the flexibility. This can be accomplished by a simple operation of locking the clamp member to the terminal plate, and the workability can be improved.

As described above, the present invention is a stator in which a coil is wound inside a stator core made of laminated steel plates, etc., with terminal plates made of an insulating material located on both end faces of the stator core, and the terminal A clamp member made of an insulating material is removably attached to the plate, and the clamp member has a locking part that elastically clamps the lead wire connected to the coil between the coil wound around the same coil. Since the holding part that surrounds and holds the chiyoke coil connected to the lead wire is integrally formed, unlike conventional ones, when the clamp member is fastened to the terminal plate, the lead wire cannot be wound by the holding part. In addition to being elastically compressed with the rotated coil, the holding part can also surround and hold the chiyoke coil, and the fixed state can be achieved elastically, so it is possible to secure the fixation and to Seed fixing work can be accomplished by simply attaching the clamp member to the terminal plate, and the workability can be improved.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view showing a clamp member, Fig. 2 is a perspective view showing the entire stator with the clamp member attached, and Fig. 3 is a state in which the clamp member is engaged. FIG. 4 is a rear view showing the fixed state of the York coil. DESCRIPTION OF SYMBOLS 1... Stator, 2... Stator core, 3... Terminal plate, 9... Coil, 10... Clamp member, 13... Engaging protrusion, 14... Locking part,
16...Holding part, 17...Lead wire, 18...Chiyoke coil.

Claims (1)

[Scope of utility model registration request] A stator in which a coil is wound inside a stator core made of laminated steel plates, etc., with terminal plates made of an insulating material located on both end faces of the stator core, and a clamp made of an insulating material is attached to the terminal plate. A member is removably attached to the clamp member, and the bent protrusion of the terminal plate surrounds the outer periphery of the coil in a direction substantially perpendicular to the winding direction thereof, and a lead connected to the coil is attached to the clamp member. A stator characterized in that a locking part that elastically presses a wire between the outer periphery of the coil and a holding part that surrounds and holds a chain coil connected to the lead wire are integrally formed.