JPS6152621B2 - - Google Patents
Info
- Publication number
- JPS6152621B2 JPS6152621B2 JP14839879A JP14839879A JPS6152621B2 JP S6152621 B2 JPS6152621 B2 JP S6152621B2 JP 14839879 A JP14839879 A JP 14839879A JP 14839879 A JP14839879 A JP 14839879A JP S6152621 B2 JPS6152621 B2 JP S6152621B2
- Authority
- JP
- Japan
- Prior art keywords
- wedge
- magnetic wedge
- mold
- stator core
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000465 moulding Methods 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
Description
【発明の詳細な説明】
本発明は軸方向空隙型電動機（以下フラツトモ
ータという）の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing an axial gap type electric motor (hereinafter referred to as a flat motor).
従来よりフラツトモータでは、小形家電用を中
心に、コイル入れ作業を容易にするため、スロツ
ト開口部を広くし、これによるモータ特性劣化防
止策として磁気ウエツジの採用が考えられてき
た。この際磁気ウエツジは、鉄粉と樹脂による配
合物で所定の形状に成形したものが安価であり有
利である。一方、フラツトモータ自身の組立工数
低減等の目的のため、固定子を樹脂にて一体成形
体とする工法も採用されている。そこで、まず一
体成形体を成形する際、磁気ウエツジが挿入され
るべき空間をも形成させ、その後、磁気ウエツジ
を配合物により直接空間へ成形させる方法が提案
された。ところが、配合物に採用されている樹脂
は、作業性、コストから熱可塑性樹脂、例えばナ
イロン、PBT等であり、一体成形体に使用され
ている樹脂、一般に熱硬化性樹脂で、例えばポリ
エステル等と密着性が悪い。そのため、磁気ウエ
ツジが挿入される一体成形体の空間にあらかじめ
接着剤を塗布し、その後、磁気ウエツジを成形法
で挿入するか、挿入後、接着剤等によつて固定し
てやる必要があり、コスト的に不利である。 Conventionally, in flat motors, mainly for small home appliances, the use of magnetic wedges has been considered as a measure to widen the slot opening to make it easier to insert coils and to prevent deterioration of motor characteristics. In this case, it is advantageous to use a magnetic wedge formed from a mixture of iron powder and resin into a predetermined shape because it is inexpensive. On the other hand, in order to reduce the number of steps required to assemble the flat motor itself, a construction method has also been adopted in which the stator is integrally molded from resin. Therefore, a method has been proposed in which a space into which a magnetic wedge is to be inserted is first formed when an integral molded body is formed, and then the magnetic wedge is directly molded into the space using a compound. However, the resin used in the compound is a thermoplastic resin such as nylon or PBT due to workability and cost, and the resin used in the integral molding is generally a thermosetting resin such as polyester. Poor adhesion. Therefore, it is necessary to apply adhesive in advance to the space of the integral molded body into which the magnetic wedge is inserted, and then insert the magnetic wedge by molding, or to fix it with adhesive etc. after insertion, which reduces the cost. disadvantageous to
本発明は、低コストで特別な接着剤を使用せず
フラツトモータの成形を可能とするものであり、
配合物により、まず磁気ウエツジを成形し、さら
に、成形に使用した金型の一部をそのまま一体成
形用金型として使用し、磁気ウエツジ挿入と一体
成形を同一工程で行ない、かつ、磁気ウエツジを
完全に固定する方法を提供しようとするものであ
る。 The present invention enables the molding of flat motors at low cost and without using special adhesives.
Using the compound, a magnetic wedge is first molded, and then a part of the mold used for molding is used as an integral molding mold, inserting the magnetic wedge and integrally molding it in the same process, and then molding the magnetic wedge. The aim is to provide a method for complete fixation.
以下本発明の実施例を添付図面を参照して説明
する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
本発明の第１工程は、磁気ウエツジの成形であ
る。配合物により、成形金型で１台当りの鉄心ス
ロツトと同数の磁気ウエツジを、スロツトと同一
配置になるように（一般的には等間隔で）成形す
る。成形金型は、第１図に示すように、上型３と
下型２から構成され、下型２には、磁気ウエツジ
と同一形状寸法で、上下に移動できるウエツジ押
し１を有している。又、下型２はウエツジ成型の
他、樹脂により一体成形体を成形するときにも使
用されるものである。磁気ウエツジは成形後の金
型ばらし時、下型２に残留し、かつ固定子鉄心の
位置決めにも使われるため、その大半が下型２で
形成され、ごく一部だけ上型３で形成される。 The first step of the present invention is forming the magnetic wedge. Depending on the formulation, a mold is used to form as many magnetic wedges as there are core slots per machine, so that they are arranged in the same manner as the slots (generally at equal intervals). As shown in Fig. 1, the molding die is composed of an upper mold 3 and a lower mold 2, and the lower mold 2 has a wedge pusher 1 that has the same shape and dimensions as a magnetic wedge and can move up and down. . Further, the lower mold 2 is used not only for wedge molding but also for molding an integrally molded body from resin. When the mold is dismantled after molding, the magnetic wedge remains in the lower mold 2 and is also used for positioning the stator core, so most of it is formed in the lower mold 2 and only a small part is formed in the upper mold 3. Ru.
第２図はスロツトの巾方向の構造を示すもので
下型２の当り面４より厚み方向で少なくとも0.2
mmは露出させてある。このとき使用する下型２の
平面構造を第３図に示し、磁気ウエツジと同一形
状のウエツジ押し１は放射状に配置されている。 Figure 2 shows the structure of the slot in the width direction.
mm is exposed. The planar structure of the lower mold 2 used at this time is shown in FIG. 3, and wedge pushers 1 having the same shape as the magnetic wedges are arranged radially.
磁気ウエツジは、スクリユー射出成形機等によ
り成形させるため、放射状に磁気ウエツジを１シ
ヨツトで成形するには、一般的に内径側か外径側
あるいは両側に連続したランナーが必要である。
またランナーと磁気ウエツジの間にはゲートがあ
り、切断し易いようにゲートは薄くしたり、狭く
する。磁気ウエツジ５は成形後、上型３がはずさ
れ、かつ、ゲート部からランナーが切断され、第
４図及び第５図に示されるように下型２に残留す
る。 Since magnetic wedges are molded using a screw injection molding machine or the like, continuous runners are generally required on the inner diameter side, outer diameter side, or both sides in order to mold the magnetic wedge radially in one shot.
There is also a gate between the runner and the magnetic wedge, and the gate is made thin or narrow to facilitate cutting. After the magnetic wedge 5 is molded, the upper mold 3 is removed and the runner is cut from the gate portion, remaining in the lower mold 2 as shown in FIGS. 4 and 5.
次に、第６図に示す如くコイル７が挿入された
固定子鉄心６は、第７図のように位置決めを併用
している磁気ウエツジ５を基準に金型２内にセツ
トし、さらに上型８を組合せ、型締と同時に、ウ
エツジ押し１を上方に移動させ、第８，９図に示
すように磁気ウエツジ５を固定子鉄心６のスロツ
ト９内に挿入する。次に、注入口より樹脂を注入
し、第１０図に示すようなコイル７、鉄心６、磁
気ウエツジ５が樹脂１０でモールドされた一体成
形体を形成する。 Next, the stator core 6 into which the coil 7 has been inserted as shown in FIG. 8 and at the same time as mold clamping, the wedge pusher 1 is moved upward and the magnetic wedge 5 is inserted into the slot 9 of the stator core 6 as shown in FIGS. Next, resin is injected through the injection port to form an integrally molded body in which the coil 7, the iron core 6, and the magnetic wedge 5 are molded with the resin 10 as shown in FIG.
この方法によれば、接着性の良い熱硬化性樹脂
が、配合物により成形された磁気ウエツジをモー
ルドするため、配合物に熱可塑性樹脂を採用して
も密着して、成形体から磁気ウエツジが脱落しな
い。又、磁気ウエツジを完全に成形金型から取り
出さないため、及び磁気ウエツジのスロツト内へ
の挿入を同一金型内で行えるため、磁気ウエツジ
の成形から一体成形体成形まで連続的に行え、工
数上大変メリツトがある。 According to this method, a thermosetting resin with good adhesiveness molds the magnetic wedge formed from the compound, so even if a thermoplastic resin is used as the compound, it will adhere tightly and the magnetic wedge will be removed from the molded object. Will not fall off. In addition, since the magnetic wedge is not completely removed from the mold, and the magnetic wedge can be inserted into the slot in the same mold, the molding of the magnetic wedge and the molding of the integral molded product can be performed continuously, reducing the number of man-hours. There are many benefits.
さらに第１１図に示すようにランナー部１１と
磁気ウエツジ５間のゲートを取り一体化し、ラン
ナー１１を成形後の型ばらし時に切断せず、スプ
ール１２のみとりはずす。こうすることにより、
磁気ウエツジの内径側か外径側、あるいは両側が
連続的に連結された形状の成形物ができ、これを
前述の方法で固定子鉄心内に挿入し、樹脂にて成
形すると、ランナー部１１は完全に樹脂でモール
ドされるため完全に脱落が防止できる。 Further, as shown in FIG. 11, the gate between the runner part 11 and the magnetic wedge 5 is removed and integrated, and only the spool 12 is removed without cutting the runner 11 during demolding after molding. By doing this,
A molded product is created in which the inner diameter side, outer diameter side, or both sides of the magnetic wedge are continuously connected. When this is inserted into the stator core using the method described above and molded with resin, the runner part 11 is formed. Since it is completely molded with resin, it can be completely prevented from falling off.
第１図は本発明の実施例にかかる磁気ウエツジ
の成形状態を示す断面図、第２図は第１図におけ
るスロツト巾方向の断面図、第３図は磁気ウエツ
ジ成型用下型の平面図、第４図は磁気ウエツジ成
形後の上型を取り外した際の断面図、第５図は第
４図の平面図、第６図はコイルを巻装した固定子
鉄心の断面図、第７図は固定子鉄心を下型にセツ
トした際の断面図、第８図は磁気ウエツジをスロ
ツト内に挿入した状態の断面図、第９図は第８図
におけるスロツト巾方向の断面図、第１０図は本
発明の製造方法にて製造した電動機の断面図、第
１１図ａ，ｂは本発明の他の実施例にかかる磁気
ウエツジの製造方法を示す平面図および断面図で
ある。
１……ウエツジ押し、２……下型、５……磁気
ウエツジ、６……固定子鉄心、７……コイル、９
……スロツト。
FIG. 1 is a sectional view showing the molding state of a magnetic wedge according to an embodiment of the present invention, FIG. 2 is a sectional view in the slot width direction in FIG. 1, and FIG. 3 is a plan view of a lower mold for molding the magnetic wedge. Figure 4 is a cross-sectional view when the upper mold is removed after magnetic wedge forming, Figure 5 is a plan view of Figure 4, Figure 6 is a cross-sectional view of the stator core wrapped with coils, and Figure 7 is a cross-sectional view of the stator core with coils wound thereon. Fig. 8 is a sectional view of the stator core set in the lower mold, Fig. 8 is a sectional view of the magnetic wedge inserted into the slot, Fig. 9 is a sectional view of Fig. 8 in the slot width direction, and Fig. 10 is a sectional view of the stator core set in the lower die. A sectional view of an electric motor manufactured by the manufacturing method of the present invention, and FIGS. 11a and 11b are a plan view and a sectional view showing a method of manufacturing a magnetic wedge according to another embodiment of the present invention. 1... Wedge pusher, 2... Lower die, 5... Magnetic wedge, 6... Stator core, 7... Coil, 9
...Slot.
Claims (1)
着する鉄心の開口部の寸法及び位置に適合させて
磁気ウエツジを、上下に移動できるウエツジ押し
を放射状に配置してなる下型と上型とにより鉄心
スロツトと同一配置になるよう成形し、次に前記
磁気ウエツジが残留する前記下型にコイルを装着
した固定子鉄心を装着し、さらに、固定子完成品
成形用金型と前記下型を組合せて型締めし、磁気
ウエツジを前記下型に設けられている前記ウエツ
ジ押しにより前記固定子鉄心開口部に挿入し、し
かる後、熱硬化性樹脂配合物により前記コイル、
固定子鉄心及び磁気ウエツジを一体成形してなる
軸方向空隙型電動機の製造方法。1 A magnetic wedge is adjusted to fit the size and position of the opening of the core, which is pre-installed with a compound consisting of iron powder and resin, and a lower mold and an upper mold, each consisting of wedge pushers that can be moved up and down, are arranged radially to form the core. The stator core is molded so as to have the same arrangement as the slots, and then the stator core with the coil attached is attached to the lower mold in which the magnetic wedge remains, and the lower mold is combined with a mold for molding the finished stator product. The mold is clamped, and a magnetic wedge is inserted into the stator core opening by the wedge pusher provided in the lower mold, and then the coil,
A method of manufacturing an axial gap type electric motor in which a stator core and a magnetic wedge are integrally molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14839879A JPS5671459A (en) | 1979-11-15 | 1979-11-15 | Manufacture of axial air gap type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14839879A JPS5671459A (en) | 1979-11-15 | 1979-11-15 | Manufacture of axial air gap type motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5671459A JPS5671459A (en) | 1981-06-15 |
| JPS6152621B2 true JPS6152621B2 (en) | 1986-11-14 |
Family
ID=15451885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14839879A Granted JPS5671459A (en) | 1979-11-15 | 1979-11-15 | Manufacture of axial air gap type motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5671459A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0324000U (en) * | 1989-07-18 | 1991-03-12 |
-
1979
- 1979-11-15 JP JP14839879A patent/JPS5671459A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0324000U (en) * | 1989-07-18 | 1991-03-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5671459A (en) | 1981-06-15 |
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