JPH04101257U - Coil end support device - Google Patents

Abstract

(57) [Summary] [Objective] To provide a coil end support device that prevents interference with related components, is easy to assemble, and has a high degree of freedom in terminal connection directions. [Structure] An annular holding part having a notch and a locking part is provided at both ends in the longitudinal direction of a support formed in a rod or plate shape so as to be able to hold a coil end of a stator of a rotating electrical machine, and A fitting part formed to fit into the slot of the stator core is provided in the middle part of the part so as to be perpendicular to the longitudinal direction of the support part, and a notch part is provided between the fitting part and the annular holding part. A coupling part having a plurality of locking parts is provided on the outer periphery, and the support part, annular holding part, the fitting part and the coupling part are integrally formed to constitute a holder, and the coupler has a terminal mounting part. Connecting portions having locking claws formed to be engageable with the locking portions are integrally provided at both ends, and the coupler is connected to the holder via the connecting portions.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention extends along the axial direction on the inner peripheral surface of the stator core, which is formed into a hollow cylindrical shape. A plurality of slots are provided at intervals in the circumferential direction, and two of these slots A rotating electric machine in which a coil is wound through the stator core and between both ends of the stator core. Regarding the coil end support device that supports the coil end in the stator for It is.

0002

[Conventional technology]

Conventionally, in stators for rotating electric machines such as generators and electric motors, Connect the outlet cord to the connection end of the coil wound by soldering, and , If this outlet cord is covered with an insulating tube and tied and fixed to the coil end, Normally, a coil terminal processing means is employed.

0003 However, in the above-mentioned conventional coil terminal processing means, both sides of the stator core are A large number of coil ends overlap and often intertwine at the end, and the coil end Since the code is generally in a floating state, the connection work with the above-mentioned egress code is of course difficult. , because the work of tying the coil ends is extremely complicated, it takes a lot of time and man-hours. There is a problem that In addition, the outlet cord is used not only for power supply to the coil, but also for control. It also includes items used for commercial purposes and other purposes, so multiple copies are required. In addition to requiring more space than necessary, it often impairs the aesthetic appearance. There is a problem.

0004 As a means to solve the above problems, the applicant has already developed an improved coil end. A connection structure has been proposed, which is disclosed in Japanese Utility Model Application Publication No. 61-43745.

[0005] Figure 5 is a perspective view of the main parts showing an example of the coil end connection structure proposed above, and Figure 6 is a diagram. FIG. 7 is an enlarged exploded perspective view of the constituent members in FIG. 6. child In these figures, 1 is the stator, which is used for rotating electric machines such as generators and motors. It is constructed by winding a coil 3 around a cylindrical stator core 2.

[0006] On the inner peripheral surface of the stator core 2, there are a plurality of slots 4 are provided with intervals between them, and the coil 3 is inserted into these slots. It passes through two of the lots 4 and is wound across both ends of the stator core 2. Sky A synthetic resin holder 5 is fitted into the slot 4a, and a cover is inserted into this holder 5. The plastic plug 6 is substantially integrated, and the coil element located at the end of the stator core 2 is further integrated. The hand 3a is held by the holder 5.

[0007] Next, the holder 5 has a supporting part 9 extending linearly, and a fitting part 10 perpendicular to the supporting part 9. It is formed into a substantially T-shape. The fitting part 10 has a slot only at its tip. 4, the width is narrowed from the middle, and the tip of the fitting part 10 At the end, when it is inserted into the slot 4, it prevents it from coming out from the slot 4 due to a slight external force. A plurality of protrusions 11 are provided to protrude in order to stop. In such a holder 5, the fitting The length of the part 10 is such that when the tip of the fitting part 10 is fitted into the slot 4, the length of the support part 9 is is set to be located on the opposite side of the stator core 2 with respect to the coil end 3a. Ru. The fitting portion 10 also has a groove (not shown) for accommodating the connection end of the coil 3. are provided extending vertically, and their connecting ends are supported for connection to the coupler 6. It passes through part 9 and is pulled out.

[0008] The coupler 6 has a plurality of female terminals or male terminals as shown in the figure, and A collar 12 is protruded from the bottom. Such a coupler 6 is conventionally well known and has a flange. 12 is placed on the holder 5 so as to be in contact with the support portion 9. Also, coupler 6 In order to be substantially integrated with the holder 5, both ends of the support part 9 and the collar 12 of the coupler 6 are The coupling members 17 and 18 are fitted into the . That is, the coupling members 17 and 18 have Fitting holes 19 and 20 into which the support portion 9 and the collar 12 can be fitted are formed respectively. , by fitting both ends of the support part 9 and the collar 12 into the fitting holes 19 and 20. As a result, the holder 5 and the coupler 6 are substantially integrated.

[0009] Furthermore, on both sides of the support portion 9, the fitting portion 10 extends on both sides of the fitting portion 10. Engagement grooves 13 and 14 extending parallel to the direction are respectively bored. On the other hand, both connecting members 17 and 18, the engagement grooves 13 and 14 have engagement grooves at their ends in the engagement direction. Matching claws 15 and 16 are provided. These engaging claws 15 and 16 are connected to the support part 9 and the cover. When the coupling members 17 and 18 are fitted to the plastic 6, they slide against both sides of the support part 9 and are not bent. , and when the coupler 6 is substantially integrated with the support part 9, the engagement groove 13, 14 to prevent the coupling members 17 and 18 from falling off from the support part 9. .

0010 In addition, each coupling member 17, 18 has an arcuate fitting recess that fits into the coil end 3a. Skirt portions 25 and 26 having locations 23 and 24 are integrally provided, and a fitting recess is provided. A plurality of protrusions 27 and 28 are protruded from the inner surfaces of the locations 23 and 24 and spaced apart from each other. Varnish injection holes 29 and 30 are bored on both sides of the skirt parts 25 and 26. Ru. Furthermore, each coupling member 17, 18 is provided with semicircular shoulders 31, 32, respectively. The shoulder portions 31 and 32 have coil ends 3a and respective coupling members. Fasteners 33, 34 for securing 17, 18 can be wound.

[0011] In the above configuration, when processing the terminal of coil 3, the connecting end must be Pull out the fitting part 10 of the holder 5 to the outside of the support part 9, and leave the fitting part 10 open. into slot 4. Furthermore, the connection end of coupler 6 and coil 3 is connected. Then, the coupler 6 is brought into contact with the support part 9. In this state, the collar 12 of the coupler 6 and the support part 9 and the coupling member 17 while fitting the fitting recesses 23 and 24 to the coil end 3a. , 18 are fitted. At this time, the engaging claws 15 and 16 are engaged with the engaging grooves 13 and 14. As a result, an external force was applied to the engaging members 17 and 18 in the direction of causing them to fall off from the support portion 9. However, the coupling members 17 and 18 do not fall off, and the coupler 6 maintains the fixed position of the support part 9. substantially integrated into the location.

0012 In this state, when varnish is injected from the varnish injection holes 29 and 30, each protrusion 27, Since a varnish reservoir is formed between 28 and 28, each knot is The mating members 17 and 18 are integrated with the coil end 3a. Furthermore, the fastener 33, At 34, the coupler 6 and holder 5 are secured together with the coil end 3a. after that, By fitting a coupler (not shown) corresponding to the coupler 6, the electricity of the coil 3 is connection is made.

[0013]

[Problem that the idea aims to solve]

According to the coil end connection structure as described above, terminal processing of the coil 3 is extremely easy. It is easy to use, the coil end 3a is held securely, and the appearance is clean. Although it has the effect of presenting an excellent aesthetic appearance, there are some problems such as the following. There is.

[0014] First, when securing the coil end 3a to the holder 5, use the fasteners 33 and 34. However, depending on the bundling or gathering state of the wires forming the coil end 3a, , since the outer dimensions of the coil end 3a are undefined, the stator core 2 and the coil end The distance from the door 3a is not constant, and there is a problem of dryness between the There is a problem in that there is a risk of interference.

[0015] Next, the members constituting the holder 5 include the support portion 9, the coupling members 17 and 18, and the coupler. 6 and four types of fasteners 33 and 34, a total of 6 parts are required, and the management of parts is difficult. Of course, the assembly work is complicated and takes a lot of man-hours and time. There is a problem.

[0016] Furthermore, since the direction in which the terminals are connected to the coupler 6 is always limited to the upward direction, When changing the connection direction of the terminals, it is necessary to change the configuration of the coupler 6. There is a problem that the flexibility is insufficient.

[0017] The present invention solves the problems existing in the above-mentioned conventional technology and prevents interference with related components. A coil that is easy to assemble and has a high degree of freedom in terminal connection direction. The purpose is to provide an end support device.

[0018]

[Means to solve the problem]

In order to achieve the above purpose, in the present invention, a rod-shaped or plate-shaped At both longitudinal ends of the support part, the coil ends of the stator of the rotating electric machine can be held. An annular holding part having a cutout part and a locking part is provided in the middle part of the support part, and a stem is provided in the middle part of the support part. The fitting part formed to be able to fit into the slot of the data core is perpendicular to the longitudinal direction of the support part. It has a notch between the fitting part and the annular holding part, and a plurality of holes on the outer periphery. A connecting portion having a locking portion is provided, and the supporting portion, annular holding portion, fitting portion and The holder is formed by integrally forming the connecting part, and the holder is attached to both ends of the coupler having the terminal mounting part. A connecting portion having a locking pawl formed to be able to engage with the locking portion is integrally provided, and the coupling portion A technical means was adopted in which the camera was connected to the holder through a connecting part.

[0019] With the above configuration, multiple overlapping and/or intersecting coil ends can be controlled. It is possible to support the Pact.

[0020]

【Example】

Fig. 1 is a perspective view of the main part showing an embodiment of the present invention, Fig. 2 is an enlarged front view of the main part of Fig. 1, and Fig. 3 and FIG. 4 show the coupler and holder, which are the constituent members in FIGS. 1 and 2, respectively. FIG. 7 is an enlarged perspective view showing the same parts, and the same parts are designated by the same reference numerals as in FIGS. .

[0021] In FIGS. 1 and 2, the holder 5 is configured as described later, and Similar to the conventional one shown in FIG. 6, the coil end 3a is secured and the fitting part 10 is By fitting into the empty slot 4a of the stator core 2, the coil 3a.

[0022] In FIG. 3, 51 is a connecting portion, which is integrated into the longitudinal end of the coupler 6, for example. establish. The connecting portion 51 is formed in a semicircular shape with a notch 52 at the bottom, and a rear portion. The locking pawl 53 is made to protrude inward so as to be able to engage with the connecting portion of the holder 5 described above. establish. Reference numeral 6a denotes a terminal mounting portion, which is provided on the upper surface of the coupler 6.

[0023] In FIG. 4, the support part 9 is formed into a rod shape or a plate shape, and the inside of the support part 9 is formed into a rod shape or a plate shape. A fitting part 10 is provided in the intermediate part so as to be orthogonal to the longitudinal direction of the support part 9. 54 is a notched hole and is provided so as to penetrate through the middle part of the support part 9. This notch hole 54 is shown in FIG. Allows the wiring of the terminal lead wire for connection between the coil 3 and the coupler 6 shown in Figure 3 above. It is for the purpose of

[0024] Next, reference numeral 55 denotes annular holding parts, which are provided at both ends of the support part 9 in the longitudinal direction. circular hold The portion 55 is formed in a semicircular shape with a notch 56 at the top, and this notch 56 Locking portions 57 and 58 are provided so as to face each other and to be able to lock each other. In addition, circular holding The inner dimensions and shape of the portion 55 are similar to those of the coil end 3a shown in FIGS. 1 and 2 above. Select the appropriate one so that it can be held.

[0025] Reference numeral 59 denotes a connecting portion, which is provided between the annular holding portion 55 and the fitting portion 10. Connecting part 5 9 is formed into a semicircular shape with a notch 60 on the upper side, and has a plurality of engagements on the outer periphery. A stop portion 61 is provided. The connecting portion 59 can be connected to the connecting portion 51 shown in FIG. In addition, the locking pawl 53 is formed so as to be able to engage with the locking portion 61.

[0026] The supporting portion 9, the fitting portion 10, the annular holding portion 55 and the connecting portion 59 are integrally formed. holder 5 is constructed. As such a forming means, for example, nylon 6 Injection molding means using thermoplastic resins such as the above are effective.

[0027] With the above configuration, when processing the terminal of coil 3 with reference to FIGS. 1 to 4 Describe the procedure. First, attach the fitting part 10 of the holder 5 to the open part of the stator core 2. It fits or fits into the slot 4a. Next, the connection end of coil 3 (not shown) ) to the specified length dimensions, and connect male or female terminals ( (all not shown) are joined via soldering or crimping means, etc., and the Install and fix the terminal into the terminal mounting part 6a of the coupler 6 through the notch hole 54 of the support part 9. Ru. Note that the coil end 3a is housed within the annular holding part 55 and the connecting part 59. There is. In this case, both the annular holding part 55 and the connecting part 59 have notches 56 and 6. 0, the coil end 3a can be easily accommodated.

[0028] Next, the notch 56 of the annular holding part 55 is closed, and the locking parts 57 and 58 are locked. By doing so, the coil end 3a is held and secured. And holder coupler 6 5 side, the connecting part 51 fits into the connecting part 59, and the locking claw 53 engages the locking part 61. Since the coupler 6 and the holder 5 are locked together, the coupler 6 and the holder 5 can be fixedly integrated. after that By fitting the coupler 6 with another coupler (not shown) that corresponds to the coil 3. Complete the electrical connections.

[0029] With the above configuration, the terminal processing of the coil 3 is extremely easy, and the coil The head 3a is held securely, and the appearance is clean, resulting in an excellent aesthetic appearance. present a view.

[0030] In this embodiment, the annular holding part and the connecting part formed integrally with the holder are provided with Although we have described an example in which each of the cutout portions is opened upward, the present invention is not limited to this. The effect is the same whether the opening is diagonally upward or to the side; in short, the coil end It is good if it is possible to enter.

[0031] Furthermore, in this example, each component constituting the holder, which is a coil end support device, is Although we have described an example in which the component parts were integrally formed by injection molding, cast molding , compression molding or other molding means, or part or all of each component. The effect is the same even if the parts are formed individually and then integrated into one piece using an adhesive, etc. be. The shape and dimensions of each component are based on the shape of the stator for the rotating electric machine to which it is applied. It goes without saying that it can be selected as appropriate depending on the dimensions and is not limited to the examples. Ru.

[0032]

[Effect of the idea]

Since the present invention has the structure and operation described above, it can achieve the following effects. Ru. (1) Since the coil end is supported from below by the holder, the stay The distance between the tacho core and the coil end is constant, and the related components installed nearby interference can be completely eliminated. (2) The only parts that make up the support device are the holder and coupler, so the assembly work is extremely difficult. It is extremely easy to use, and can significantly reduce man-hours and time. (3) By changing the coupler fitting direction, the terminal connection direction can be changed. , the degree of freedom can be increased. (4) In addition, the terminal processing of the coil is easy and reliable, and the coil end is securely fixed. Naturally, it also has the effect of being able to maintain its properties and exhibiting an even better aesthetic appearance.

[Brief explanation of drawings]

FIG. 1 is a perspective view of essential parts showing an embodiment of the present invention.

FIG. 2 is an enlarged front view of the main part of FIG. 1;

FIG. 3 is an enlarged perspective view of the coupler in FIGS. 1 and 2;

FIG. 4 is an enlarged perspective view showing the holder in FIGS. 1 and 2. FIG.

FIG. 5 is a perspective view of a main part showing an example of a conventional coil end connection structure.

6 is an enlarged front view of the main part of FIG. 5. FIG.

FIG. 7 is an enlarged exploded perspective view of the structural members in FIG. 6;

[Explanation of symbols]

2 Stator core 3a Coil end 5 Holder 6 coupler 9 Support part 10 Fitting part 51,59 Connection part 55 Annular holding part

Claims (1)

[Scope of utility model registration request] Claim 1: An annular holding part having a notch and a locking part is provided at both longitudinal ends of a rod-shaped or plate-shaped support part so as to be able to hold a coil end of a stator of a rotating electric machine, A fitting part formed in the middle part of the supporting part so as to be able to fit into the slot of the stator core is provided so as to be orthogonal to the longitudinal direction of the supporting part, and a notch part is provided between the fitting part and the annular holding part. In addition, a connecting part having a plurality of locking parts is provided on the outer periphery, and the supporting part, the annular holding part, the fitting part, and the connecting part are integrally formed to constitute a holder, and the terminal mounting part is provided. A coil end support device characterized in that a coupler is integrally provided with a connecting portion having locking claws formed to be engageable with the locking portion at both ends thereof, and the coupler is connected to the holder via the connecting portion. .