JP2014212669A - Fully closed dynamo-electric machine and method of manufacturing fully closed dynamo-electric machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fully closed dynamo-electric machine which can be assembled easily, without requiring a severe processing accuracy.SOLUTION: A fully closed dynamo-electric machine includes a stator 4, a rotor 6 inserted into the stator 4 and supported rotatably, and a housing 2 consisting of two cylindrical members (first cylindrical member 21, second cylindrical member 22), and housing the stator 4 and rotor 6 by fastening the two cylindrical members (first cylindrical member 21, second cylindrical member 22) while abutting concentrically with the axis of rotation of the rotor 6. At the abutting part of two cylindrical members (first cylindrical member 21, second cylindrical member 22), an annular gap continuous to an annular contact area Rb and opening on the inner peripheral surface 2i side or the outer peripheral surface 2x side and being filled with a sealing material 9 is formed on both sides in the radial direction of the annular contact area Rb where the two cylindrical members (first cylindrical member 21, second cylindrical member 22) come into contact with each other.

Description

  The present invention relates to a configuration and a manufacturing method of a fully closed type rotating electrical machine in which a stator and a rotor are housed in a housing.

  In motors that require waterproofing, such as for vehicles, a sealing material is placed between or around the abutting surfaces of the housing that forms the waterproof outer wall to prevent water from entering and corrosion from the outside. Yes. At that time, in order to follow the displacement between components due to vibration and linear expansion coefficient difference, the sealing material needs to have an appropriate thickness. At this time, when using a liquid sealing material, it is necessary to form a space for determining the thickness of the sealing material with high accuracy, and the sealing material is filled in the formed space without protruding to the outside. Therefore, high assembly accuracy is required.

  Therefore, when one of the flanges of the bracket (housing) is formed with a convex portion extending in an annular shape in the intermediate portion in the radial direction and the other is formed with a concave portion extending in an annular shape corresponding to the convex portion, both flanges are brought into contact with each other. An electric motor (motor) that fills a gap formed between a convex portion and a concave portion with a sealing material has been proposed (for example, see Patent Document 1).

JP-A-8-266001 (paragraphs 0011 to 0016, FIGS. 1 to 5)

  However, when supplying the sealing material to the gap in the intermediate part of the flange as in the above-described electric motor, if the supply amount of the sealing material with respect to the gap volume is too large, the excess sealing material exceeds the butted part from the gap part. If it is too small, the sealing material will be lost. For this reason, high processing accuracy is required to accurately maintain the volume of the gap, and accuracy is also required for the supply amount of the sealing material, making it difficult to easily assemble.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a fully-closed rotating electrical machine that can be easily assembled without requiring excessive machining accuracy.

  A fully-closed rotating electrical machine according to the present invention comprises a stator, a rotor inserted into the stator and rotatably supported, and two cylindrical members, which are concentric with the rotation shaft of the rotor. The two cylindrical members are abutted and fastened to each other, and a housing for housing the stator and the rotor therein is provided. In the portion where the two cylindrical members are abutted, the two cylindrical members are On both sides in the radial direction of the annular contact areas that are in contact with each other, an annular gap is formed that is continuous with the annular contact area and opens on the inner peripheral surface side or the outer peripheral surface side to fill the sealing material. It is characterized by being.

  A manufacturing method of a fully-enclosed rotating electrical machine according to the present invention includes a step of applying the sealing material to a portion corresponding to the annular contact region of one of the two cylindrical members, and the stator and the inside In order to accommodate the rotor, the applied sealing material is moved from the portion corresponding to the annular contact region by bringing the two cylindrical members concentrically with each other so as to be concentric with the rotating shaft of the rotor. It includes a step of moving into an annular gap and a step of fastening the two butted cylindrical members.

  According to the present invention, the gaps for filling the sealing material that opens to the outer peripheral surface side and the inner peripheral surface side on both sides in the radial direction of the annular contact region where the two cylindrical members constituting the housing contact each other. Therefore, it is possible to obtain a fully-closed rotating electrical machine that can be easily assembled without requiring excessive machining accuracy.

It is a cross-sectional schematic diagram for demonstrating the structure of the part which faced | matched two cylindrical members which comprise the housing of the motor concerning Embodiment 1 of this invention. It is the front view and side view which show the external appearance of the motor concerning Embodiment 1 of this invention. It is sectional drawing for demonstrating the structure of the motor concerning Embodiment 1 of this invention. It is a cross-sectional schematic diagram for demonstrating the structure of the part which faced | matched two cylindrical members which comprise the housing of the motor concerning Embodiment 2 of this invention. It is a cross-sectional schematic diagram for demonstrating the structure of the part which faced | matched two cylindrical members which comprise the housing of the motor concerning Embodiment 3 of this invention. It is a cross-sectional schematic diagram for demonstrating the structure of the part which faced | matched two cylindrical members which comprise the housing of the motor concerning Embodiment 4 of this invention.

Embodiment 1 FIG.
1-3 is for demonstrating the structure of the motor concerning Embodiment 1 of this invention, FIG. 2 is the front view (a) and side view (b) which show the external appearance of a motor, FIG. It is sectional drawing by the AA line of Fig.2 (a). FIG. 1 illustrates a characteristic configuration of the motor according to the first embodiment of the present invention. FIG. 1A illustrates a configuration of a butted portion of two cylindrical members constituting the housing. FIG. 1B is a schematic cross-sectional view obtained by enlarging and extracting the region S (butting portion) of FIG. 3, and FIG. 1B is a state before the opening end portions of the opposing cylindrical members shown in FIG. It is a cross-sectional schematic diagram which shows.

  The motor 1 according to the first embodiment of the present invention is a controller-integrated motor in which a control device 3 is disposed in a space surrounded by a housing 2 as shown in FIGS. The housing 2 is formed by abutting and fastening the annular opening surfaces of the first cylindrical member 21 and the second cylindrical member 22 each having a corresponding opening. A stator 4 is attached to the opposite side of the opening surface of the first tubular member 21, and a bearing 5 </ b> A is attached to the stator 4. A bearing 5B is attached to the opposite side of the opening surface of the second cylindrical member 22, and the rotor 6 inserted into the stator 4 is rotatably supported by the bearings 5A and 5B (collectively the bearing 5). Yes. A motor output shaft 7 for transmitting the rotation of the rotor 6 to the outside is attached to the second cylindrical member 22.

  Next, the housing 2 will be described in more detail with reference to FIG. The opening surfaces of the first cylindrical member 21 and the second cylindrical member 22 constituting the housing 2 each have an annular shape with the same diameter, and the leading edge (opposing surface) is smoothed by machining, and the abutting surface 21f. , 22f are formed. The positions of the first cylindrical member 21 and the second cylindrical member 22 in the direction of the rotation axis are obtained by abutting the butted surfaces 21f, 22f flattened by machining concentrically with the rotation axis of the rotor 6. Is decided. When the three screws 8 installed at predetermined positions in the circumferential direction are tightened, the first cylindrical member 21 and the second cylindrical member 22 are positioned and fixed in the rotation axis direction and the circumferential direction.

  At this time, the length (width Wf) in the radial direction (thickness direction) of the butting surface 21f of one cylindrical member (in this embodiment, the first cylindrical member 21) is the thickness W2 of the housing 2. Steps 2d that are open to the inner peripheral surface 2i and the outer peripheral surface 2x are formed on both sides in the diameter (thickness) direction. Specifically, the width Wd that is the length in the radial direction of the main portion of the stepped portion 2d is set to 1 mm, and the depth Dd that is the length in the axial direction is set between 0.3 mm to 0.7 mm. For example, when the thickness W2 of the housing 2 is about 4 mm, the width Wf of the butting surface 21f is about 2 mm.

  Of the dimensions of the stepped portion 2d, the value of the depth Dd is set within a predetermined range because the thickness of the sealing material 9 is to follow the displacement between components as described in the background art. This is because it is necessary to set the value appropriately.

  Then, a ring-shaped gap (width (axial length: 0.3 mm to 0.7 mm) formed between the stepped portion 2d and the abutting surface 22f of the other housing (second cylindrical member 22). ) × (radial length: 1 mm)) is filled with a sealing material 9. That is, the rings having the predetermined thickness Dd and the width Wd that are open to the inner peripheral surface 2i and the outer peripheral surface 2x respectively on both sides in the radial direction (thickness direction of the housing 2) of the contact region Rb by the butted surfaces 21f and 22f. It will be covered with the sealing material 9 of a shape. Thereby, the inside (inner peripheral surface i side) and the outer side (outer peripheral surface 2x side) of the housing 2 are isolated, and waterproofness is exhibited. Therefore, it can prevent that the control apparatus 3 arrange | positioned inside is exposed to dust, water, etc.

  At this time, since the butted surfaces 21f and 22f are machined, the assembling accuracy is improved. In addition, since both the butting surfaces 21f and 22f are located at the tip of the opening surface, machining (surface machining) can be easily performed. Furthermore, since the step portions 2d are provided on the inner peripheral side and the outer peripheral side, the creepage distance from the outside to the inside increases, and the corrosion resistance is improved.

  In addition, the sealing material 9 is apply | coated to the part corresponding to contact area | region Rb with the abutting surface 21f among the abutting surfaces 22f circumferentially. Then, the gap between the butting surface 21f and the butting surface 22f is narrowed during assembly, so that the sealing material 9 is pushed out from the contact region Rb, and the stepped portion 2d formed on each of the inner peripheral side and the outer peripheral side is opposed to the facing surface. The gap with the (abutting surface 22f) is filled. Thereby, the sealing material 9 can be filled with two ring-shaped gaps in the radial direction by applying the sealing material 9 at one location in the radial direction.

  At that time, since the ring-shaped gap is open on the inner circumferential side or the outer circumferential side, even if the application amount is too large with respect to the volume of the ring-shaped gap, the excess sealing material 9 is removed from the inner circumferential surface 2i or It fits to the extent that it rises from the outer peripheral surface 2x. Alternatively, even when the application amount is small with respect to the volume of the ring-shaped gap, the sealing material 9 is filled from the boundary portion with the contact region Rb, so that it is possible to form a leak path that passes through the contact region Rb. And sealability can be secured. That is, since the application amount of the sealing material 9 has a likelihood, it can be easily assembled without impairing waterproofness. This effectively prevents moisture and dust from entering not only the rotating devices (rotor 6 and stator 4) but also the electronic device such as the control device 3, thereby improving the reliability.

  Further, an R-shaped inclined portion 2sd is provided as a die-cutting gradient provided for molding the housing 2 from the contact region Rb (butting surface 21f) to the bottom surface (depth Dd portion) of the main portion of the step portion 2d. Is formed. Therefore, when the sealing material 9 is filled, the sealing material 9 pushed out by the abutting surface 21f is smoothly filled in the gap between the stepped portion 2d and the abutting surface 22f along the inclined portion 2sd. In addition, the abutting surfaces 21f and 22f are machined, while the stepped portion 2d is left unprocessed. Thereby, since the adhesion area of the sealing material 9 and the housing 2 (1st cylindrical member 21) increases, sealing performance improves.

  In the first embodiment, an example in which the stepped portion 2d is provided on the first tubular member 21 is shown, but it goes without saying that it may be provided on the second tubular member 22 side. In this embodiment and the following embodiments, a motor that converts electric power into mechanical rotation is described. However, a generator that converts mechanical rotation into electricity may be used. That is, the present invention can be applied by replacing the motor with a fully closed rotating electric machine.

  As described above, according to the fully-closed rotating electrical machine (motor 1) according to the first embodiment of the present invention, the stator 4 and the rotor 6 inserted into the stator 4 and rotatably supported are provided. It consists of two cylindrical members (first cylindrical member 21, second cylindrical member 22), and two cylindrical members (first cylindrical member 21, second cylinder) concentrically with the rotation axis of the rotor 6. And a housing 2 that houses the stator 4 and the rotor 6 therein, and includes two tubular members (a first tubular member 21 and a second tubular member 22). In the butted portion, the two cylindrical members (the first cylindrical member 21 and the second cylindrical member 22) are connected to the annular contact region Rb on both sides in the radial direction of the annular contact region Rb where they contact each other. An annular gap that opens on the inner peripheral surface 2i side or the outer peripheral surface 2x side and is filled with the sealing material 9 It was constructed as being formed. For this reason, the annular contact region Rb is accommodated in one plane, but the creeping distance from the outside to the inside is increased, so that the corrosion resistance is also improved. Further, since the annular gap is a space for storing the sealing material 9, the likelihood of the application amount of the sealing material 9 is increased in order to prevent the sealing material 9 from protruding, and the handleability is improved. Moreover, since the sealing material 9 is held between the first cylindrical member 21 and the second cylindrical member 22, a seal portion can be formed not only on the inner peripheral side of the contact region Rb but also on the outer peripheral side. Waterproofness is improved. That is, it is possible to obtain a fully closed rotating electrical machine (motor 1) that can be easily assembled without requiring excessive machining accuracy.

  In addition, since the control device 3 that controls the operation of the fully-closed rotating electrical machine (motor 1) is disposed inside the housing 2, the dust and moisture can be prevented from entering the electronic apparatus and the reliability can be improved. .

  In particular, the main part of the annular gap is configured to have a width (= step portion depth Dd) set between 0.3 mm and 0.7 mm in a direction parallel to the rotation axis, so that vibration, It can follow the displacement between parts due to the difference in coefficient of linear expansion and maintain a highly reliable seal. The predetermined width is set in order to ensure sealing performance by the sealing material 9, and may be appropriately changed according to the material and shape of the housing 2, the usage environment, and the characteristics of the sealing material 9.

  At that time, in the annular gap, the part from the main part having a predetermined width to the annular contact area Rb is inclined (becomes an inclined part 2sd), so that the sealing material 9 is separated from the contact area Rb to the gap part. Therefore, it is smoothly filled from the boundary portion with the contact region Rb. As a result, a leak path that passes through the contact region Rb is not formed, and sealing performance can be ensured.

  And since the part (butting surface 21f, 22f) corresponding to the cyclic | annular contact area | region Rb of two cylindrical members was made into the smooth surface formed in the most advanced state, respectively, it can machine easily. At this time, by leaving other portions (stepped portion 2d, inclined portion 2sd, etc.) as rough surfaces, the adhesion area of the surface to be the seal portion can be increased and the sealing performance can be improved.

Embodiment 2. FIG.
In the fully-closed rotating electrical machine (motor) according to the second embodiment, a step portion is provided in each of the first cylindrical member and the second cylindrical member, and an annular gap is formed on the opposite side of the contact area in the rotation axis direction. It is what you do. Other configurations are the same as those in the first embodiment. FIG. 4 illustrates a characteristic configuration of the motor according to the second embodiment of the present invention, and FIG. 4A illustrates a configuration of the butted portions of the two cylindrical members constituting the housing. FIG. 4B is a schematic cross-sectional view showing a state before the opening end portions of the opposing cylindrical members shown in FIG. In addition, about a basic structure, FIG. 2, FIG. 3 used in Embodiment 1 is used.

  As shown in FIG. 4, in the fully-closed rotating electrical machine (motor 1) according to the second embodiment, the step portion 2d on the outer peripheral side is provided on the first cylindrical member 21 as in the first embodiment. The side step 2 d is provided on the second cylindrical member 22. That is, the step portions 2d on the inner peripheral side and the outer peripheral side are distributed and arranged on the first cylindrical member 21 and the second cylindrical member 22. Other configurations are the same as those in the actual embodiment 1, and detailed description thereof is omitted.

  As in the fully closed rotating electrical machine (motor 1) according to the second embodiment, in the structure in which the stepped portions 2d formed on both sides in the radial direction are distributed to the first cylindrical member 21 and the second cylindrical member 22. The creeping distance of both the first tubular member 21 and the second tubular member 22 increases. Therefore, for example, when the 1st cylindrical member 21 and the 2nd cylindrical member 22 are formed with the same material, corrosion resistance can be similarly improved with both cylindrical members.

  Also in the second embodiment, by machining the butting surface 21f of the first cylindrical member 21 and the butting surface 22f of the second cylindrical member 22, the step 2d portion is unprocessed. Assembly accuracy and sealability are improved.

  The sealing material 9 is applied to one of the abutting surfaces 21f and 22f in a portion corresponding to the contact region Rb as in the first embodiment. By doing so, the sealing material 9 pushed out by assembling is filled in the respective step portions 2d on the inner peripheral side and the outer peripheral side. Further, similarly to the first embodiment, the inclined portion 2sd is formed in each stepped portion 2d, so that the sealing material 9 can be easily filled.

  In the second embodiment, the example in which the inner peripheral side stepped portion 2d is provided in the second cylindrical member 22 and the outer peripheral side stepped portion 2d is provided in the first cylindrical member 21 is shown. Needless to say.

  As described above, according to the fully-closed rotating electrical machine (motor 1) according to the second embodiment, the annular gap opened on the inner peripheral surface 2i side has two cylindrical members (the first cylindrical member 21 and the first cylindrical member 21). Since the annular gap opening on the outer peripheral surface 2x side is formed on one side of the second cylindrical member 22) on the other side, the creeping distance in both cylindrical members is similarly extended. Similarly, the corrosion resistance can be improved.

Embodiment 3 FIG.
In the fully-closed rotating electrical machine according to the third embodiment, a protrusion is provided on the outer peripheral surface side or the inner peripheral surface side of the step portion with respect to the first and second embodiments, and the width of the opening portion of the annular gap is It is made narrower than the width Dd (0.3 mm to 0.7 mm) of the main part. Other configurations are the same as those in the first embodiment. FIG. 5 illustrates a characteristic configuration of the motor according to the third embodiment of the present invention, and FIG. 5A illustrates a configuration of a butting portion of two cylindrical members constituting the housing. FIG. 5B is a schematic cross-sectional view showing a state before the opening end portions of the opposed cylindrical members shown in FIG. In addition, about a basic structure, FIG. 2, FIG. 3 used in Embodiment 1 is used.

  As shown in FIG. 5, in the fully-closed rotating electrical machine (motor 1) according to the third embodiment, the open surface side when the butted surfaces 21f and 22f of the stepped portion 2d of the first cylindrical member 21 are butted together. Further, a protrusion 2pd lower than the abutting surface 21f is provided. Other configurations are the same as those in the actual embodiment 1, and detailed description thereof is omitted.

  As a result, a portion (opening portion Cd) that leads to the outside (inner peripheral surface 2i or outer peripheral surface 2x side) of the gap formed between the stepped portion 2d and the abutting surface 22f that faces the stepped portion 2d is separated from the bottom surface of the stepped portion 2d. It becomes narrower than the depth Dd of the stepped portion 2d in accordance with the protruding amount of the protruding portion 2pd. Therefore, the sealing material 9 pushed out from the contact region Rb at the time of assembly is likely to stay in the gap formed between the stepped portion 2d and the butting surface 22f facing the step portion 2d, and the protrusion to the outside is suppressed. This further facilitates filling of the sealing material 9 into the gap generated in the stepped portion 2d. In addition, the creepage distance can be further increased by providing the protrusion 2pd.

  Since the protrusion 2pd of the fully-closed rotating electrical machine (motor 1) according to the third embodiment is lower than the abutting surface 21f, the abutting surface 21f is located at the forefront of the facing portion as in the first embodiment. Therefore, machining (surface machining) can be easily performed. The butting surfaces 21f and 22f are then machined, but the protrusion 2pd is left unprocessed to increase the area of adhesion with the sealing material 9.

  In the third embodiment, needless to say, the stepped portion 2d may be provided not only on the first tubular member 21 but also on the second tubular member 22 side.

  As described above, according to the fully-closed rotating electrical machine (motor 1) according to the third embodiment, the width of the portion (opening portion Cd) that opens to the inner peripheral surface 2i side or the outer peripheral surface 2x side of the annular gap. However, since the width Dd (0.3 mm to 0.7 mm) of the main portion is narrower, the sealing material 9 can be reliably held in the annular gap.

Embodiment 4 FIG.
In the fully-closed rotating electrical machine according to the fourth embodiment, as shown in the second embodiment, the stepped portion having the protrusion shown in the third embodiment is replaced with the first cylindrical member and the second cylindrical member. It is formed by sorting. Other configurations are the same as those in the first embodiment. FIG. 6 illustrates a characteristic configuration of the motor according to the fourth embodiment of the present invention, and FIG. 6A illustrates the configuration of the butted portions of the two cylindrical members constituting the housing. FIG. 6B is a schematic cross-sectional view showing a state before the opening end portions of the opposing cylindrical members shown in FIG. In addition, about a basic structure, FIG. 2, FIG. 3 used in Embodiment 1 is used.

  As shown in FIG. 6, in the fully closed rotating electrical machine (motor 1) according to the fourth embodiment, the step portion 2 d on the outer peripheral side is provided in the first tubular member 21 among the step portions 2 d having the protrusion 2 pd. The step portion 2 d on the inner peripheral side is provided on the second cylindrical member 22. About another structure, it is the same as that of what was demonstrated in the actual forms 1-3, and detailed description is abbreviate | omitted.

  In the fourth embodiment, the example in which the inner peripheral step 2d is provided in the second cylindrical member 22 and the outer peripheral step 2d is provided in the first cylindrical member 21 has been described. Needless to say, as described in 2, the reverse is also possible.

  In the first to fourth embodiments, only one of the cylindrical members (the first cylindrical member 21 or the second cylindrical member 22) is provided on the inner peripheral surface 2i side and the outer peripheral surface 2x side. The example in which the step portion 2d is provided in the above has been described. However, on both the inner peripheral surface 2i side and the outer peripheral surface 2x side, both cylindrical members (the first cylindrical member 21 and the second cylindrical member 22) may be provided with stepped portions 2d. What is necessary is just to set so that the sum total of the depth of the level | step-difference part 2d which opposes may become the thickness (for example, value between 0.3 mm-0.7 mm) of the desired sealing material 9.

  As described above, in order to manufacture the fully-closed rotating electrical machine (motor 1) according to each of the first to fourth embodiments of the present invention, two cylindrical members (first cylindrical member 21, second cylindrical shape) The step of applying the sealing material 9 to one portion of the member 22) corresponding to the annular contact region Rb, and concentric with the rotating shaft of the rotor 6 so as to accommodate the stator 4 and the rotor 6 therein. The two sealing members (first cylindrical member 21 and second cylindrical member 22) are brought close to each other so that the applied sealing material 9 is removed from the portion corresponding to the annular contact region Rb. And a step of fastening the two tubular members (the first tubular member 21 and the second tubular member 22) that are brought into contact with each other. Thereby, the sealing material 9 is smoothly filled in the annular gap. That is, it is possible to obtain a fully closed rotating electrical machine (motor 1) that can be easily assembled without requiring excessive machining accuracy.

  DESCRIPTION OF SYMBOLS 1: Motor (fully closed type rotary electric machine), 2: Housing, 3: Control apparatus (controller), 4: Stator, 5: Bearing, 6: Rotor, 7: Motor output shaft, 8: Screw, 9: Seal 21: first cylindrical member, 22: second cylindrical member, 21f: abutting surface of the first cylindrical member, 22f: abutting surface of the second cylindrical member, 2i: inner peripheral surface of the housing, 2x: outer peripheral surface of housing, 2d: stepped portion, 2pd: protruding portion, 2sd: slope of the stepped portion, Cd: gap of the protruding portion, Dd: width of the gap (axial length of the stepped portion (depth = seal material) Rb: contact area, W2: thickness of housing, Wd: radial length of stepped portion (width = width of sealing material), Wf: width of butt surface.

A fully-closed rotating electrical machine according to the present invention comprises a stator, a rotor inserted into the stator and rotatably supported, and two cylindrical members, which are concentric with the rotation shaft of the rotor. The two cylindrical members are abutted and fastened to each other, and a housing for housing the stator and the rotor therein is provided. In the portion where the two cylindrical members are abutted, the two cylindrical members are butt in part, the two cylindrical members contact is you contact with each other touch region, located in the middle of the thickness direction of the housing is formed in a ring shape surrounding the rotating shaft, the diameter of the contact area On both sides of the direction, each of the two cylindrical members is connected to the contact region, and has an opening on the inner peripheral surface side or the outer peripheral surface side, and an annular gap for filling a sealing material is formed. The part corresponding to the contact area Characterized in that it is a flat surface at the forefront in the respective butting direction.

Claims (7)

A stator,
A rotor inserted into the stator and rotatably supported;
A housing comprising two cylindrical members, concentrically tightening the two cylindrical members concentrically with the rotating shaft of the rotor, and housing the stator and the rotor therein;
In the portion where the two cylindrical members are abutted with each other, both the radial contact sides of the annular contact region where the two cylindrical members contact each other are connected to the annular contact region, and the inner peripheral surface side or the outer peripheral surface. A fully-closed rotating electrical machine characterized in that an annular gap is formed on the side for filling with a sealing material.   The fully-closed rotating electrical machine according to claim 1, wherein a control device for controlling the fully-closed rotating electrical machine is disposed inside the housing.   3. The fully-closed rotating electrical machine according to claim 1, wherein a portion from the main portion having a predetermined width to the annular contact region is inclined in the annular gap.   4. The fully-closed rotating electrical machine according to claim 3, wherein a width of a portion of the annular gap that opens to the inner peripheral surface side or the outer peripheral surface side is narrower than the predetermined width.   The annular gap opening to the inner peripheral surface side is formed on one side of the two cylindrical members, and the annular gap opening to the outer peripheral surface side is formed on the other side of the two cylindrical members. The fully-closed rotating electrical machine according to any one of claims 1 to 4, characterized in that:   The fully closed mold according to any one of claims 1 to 5, wherein the portions of the two cylindrical members corresponding to the annular contact areas are smooth surfaces formed at the forefront. Rotating electric machine. A method for producing a fully-closed rotating electrical machine according to any one of claims 1 to 6,
Applying the sealing material to a portion corresponding to the annular contact area of one of the two cylindrical members;
In order to house the stator and the rotor in the interior, the two cylindrical members are brought close to each other so as to be concentric with the rotating shaft of the rotor, so that the applied sealing material is brought into contact with the annular contact. Moving from the portion corresponding to the region into the annular gap,
Fastening the two butted tubular members; and
The manufacturing method of the fully-closed type rotary electric machine characterized by including these.

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