JP4552254B2 - motor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a motor having a configuration in which a control board is attached to a stator.
[0002]
[Prior art]
Conventionally, in order to reduce the size of a motor, for example, a configuration in which a control board is attached to the stator has been proposed. As a manufacturing process of this motor, it is often the case that windings are wound around the stator, then a control board is attached, and the stator windings are connected to the winding attachment terminals of the control board for connection.
[0003]
Hereinafter, the configuration and construction method of the conventional motor will be described with reference to FIGS. FIG. 3 is a cross-sectional view of a conventional motor (a motor integrated with a pump in this figure) in which a control board is attached to the stator, and FIG. 4 is a perspective view of the control board and the stator in the motor.
[0004]
As shown in FIG. 3, the stator 1 of the motor has a stator core 2 in which thin steel plates are laminated, and a cylindrical substrate receiver 3 on the outer periphery of the stator core 2. The substrate receiver 3 is usually connected all around, but the notch is shown in a large size for easy understanding. The stator 1 has a winding 4 wound around the stator core 2 with a necessary number of turns and wire diameter according to the voltage and current to be driven, and is molded with resin. A substrate substrate 3 supports a control substrate 15 for controlling the pump.
[0005]
The stator 1 having such a configuration is press-fitted into a motor frame 5 made of metal. A driven magnet 10 serving as a rotor is disposed in a hollow portion at the center of the stator 1, and a motor is constituted by each of these components.
[0006]
The pump includes an impeller 6, a pump chamber 7 that houses the impeller 6, a partition wall 8 that partitions the stator 1 and the pump chamber 7, and a casing 9 that forms the pump chamber 7.
[0007]
The driven magnet 10 in the motor is integrally formed with the impeller 6 in order to rotate the impeller 6 of the pump, and the bearing 11 of the impeller 6 is press-fitted concentrically with the impeller 6. It is supported. 13a and 13b in the figure are bearing plates for supporting a load in the thrust direction by contacting the bearing 11 press-fitted into the impeller 6 when the impeller 6 moves in the axial direction, and 14 is for preventing water leakage. O-ring.
[0008]
Next, the support structure of the control board 15 by the board receiver 3 in the stator will be described in detail with reference to FIG.
[0009]
The cylindrical substrate receiver 3 has a plurality of positioning ribs 3a upstanding on the circumferential end surface thereof, and has a claw that serves to hook and fix the control substrate 15 with a claw at the tip of the rib 3a. is doing. On the other hand, the outer periphery of the control board 15 is provided with notches 16 for indicating the positions of the positioning ribs 3a and for determining the positions of the stator 1 and the control board 15, and the positioning ribs 3a are cut. The control board 15 is supported by the positioning rib 3a by being fitted in the notch 16 and by hooking the claw on the control board 15. In the figure, reference numeral 17 denotes a winding mounting terminal mounted on the control board 15, and 18 denotes a driver IC for controlling the motor.
[0010]
In the conventional motor configured as described above, components that can be configured as parts are assembled together and sequentially combined. That is, the control board 15 on which components are mounted is attached to the stator 1 around which the predetermined winding 4 is wound. Further, the motor is manufactured in such a manner that the parts are incorporated into the motor frame 5.
[0011]
[Problems to be solved by the invention]
However, as can be seen from FIG. 4, in the process of combining the stator 1 and the control board 15, the end portion of the winding 4 wound around the stator 1 is in a free state when assembled. Therefore, there is a case where a groove is provided in a part of the stator 1 and temporarily fixed. However, when the wiring is made by removing the groove, the winding 4 comes into contact with the edge portion of the control board 15 and is damaged or slackened. There was a problem that the insulation distance could not be obtained. In particular, since vibration is unavoidable during use, these problems may occur after assembly.
[0012]
Further, since there are many ends of the winding 4, there is a problem that the corresponding winding mounting terminal 17 of the control board 15 is difficult to understand (in the drawing, the winding end of the winding is not easily understood. The number is reduced.)
[0013]
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems, and to provide a highly reliable motor that reduces the work time by simplifying the assembly of the motor and is less likely to cause defects even during and after assembly. Yes.
[0014]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a cylindrical substrate receiver on a stator, a plurality of ribs for positioning and retaining the control substrate at the circumferential end of the substrate receiver, and a tip at the outer periphery of the control substrate. A plurality of ribs that project the control board by contacting with the surface near the part project, and control the groove part for temporarily fixing the winding end of the stator on the surface side of the rib that receives the control board in contact with the control board The motor is configured so as to coincide with the position of the winding mounting terminal on the substrate.
[0015]
According to the present invention, the winding mounting terminal of the control board corresponding to the end of the winding of the stator is not mistaken. Further, since the winding end portion that has been temporarily fixed may be removed and connected to the winding mounting terminal of the control board as it is, damage to the winding is reduced. Thus, since the stator winding and the control board terminal can be easily connected, the working time can be shortened, and a highly reliable motor can be provided with less occurrence of defects during and after assembly.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention is a motor having a configuration in which a disk-shaped control board is attached to a stator having windings, and the stator is provided with a cylindrical board receiver, and the circumference of the substrate receiver is provided. the end, projecting rib for multiple positioning ribs for multiple receiving the tip receiving the contact with the control board to the outer peripheral portion near the surface of the control board for locking positioning and takes the control board, on the side in contact with the control board of the ribs for receiving the, a groove for temporarily fixing the winding end portion of the stator is provided the same number and the end-winding, the control board is a cut-away portion on the outer peripheral side A motor that has a configuration in which the notch and the groove are positioned on the same straight line that passes through the center of the motor, and is disposed outside the deepest part of the notch and the outside of the control board. The distance from the inner periphery of the frame A motor with an edge distance or more, a holding portion for supporting the control board becomes easier position Awasegashi the control board by having a rib structure, further, without accumulating it also when water droplets adhere by for example condensation, etc. Can be discharged. In addition, because the rib for receiving the control board is provided with a groove for temporarily fixing the winding end, the end of the winding wound around the stator can be fixed, and the winding may be damaged when the control board is mounted. It has the effect of being reduced.
[0017]
Then, by providing a groove portion for temporarily fixing the winding end portion of the stator on the surface side of the rib that receives the control substrate in contact with the control substrate, the winding mounting terminal of the corresponding control substrate can be easily understood. Further, the control board has a cutout portion on the outer peripheral side of the mounted winding mounting terminal, and the winding end portion of the stator provided on the rib for receiving the cutout portion and the control board is temporarily fixed. Since the groove portion is located on the same straight line passing through the center of the motor, the motor winding can be fixed to the corresponding coil mounting terminal of the control board after the winding of the motor is aligned with the notch portion. In addition to being easy to understand, since the winding is wired at a position inside the notch depth from the outer periphery of the control board, the occurrence of defective winding due to contact or the like is reduced. In addition, the distance between the deepest part of the notch and the inner periphery of the motor frame, which is disposed outside the control board and forms the outer shell of the motor, is equal to or greater than the insulation distance, so that the motor winding is Since it can be fixed to the winding mounting terminal of the corresponding control board after matching with the notch, the combination is easy to understand, and the winding is inward from the outer periphery of the control board by the depth of the notch, that is, beyond the insulation distance. Since it is wired at the place where it enters, the occurrence of winding defects due to contact or the like is reduced, and an insulation distance can be secured. In other words, a monitor and the reduce the occurrence of defects after assembly and during assembly by wiring mistakes such as, the effect of being able to shorten the working time.
[0018]
According to a second aspect of the present invention, in the motor according to the first aspect , the same number of ribs for receiving a control board having a groove portion for temporarily fixing the winding end portion of the stator as the end portion of the stator winding. The position of the winding end wound around the stator corresponding to the groove provided in the rib for receiving the control board is determined. This makes it easy to understand the winding ends and the corresponding winding mounting terminals of the control board. That is, a monitor and the reduce the occurrence of defects due to wiring errors, the effect of being able to shorten the working time.
[0019]
The invention described in claim 3 of the present invention, in the motor according to claim 1 or 2, the winding end of the stator which is provided in the rib for receiving the control board and the groove portion for temporarily fixed to the control board implementation windings mounting pin is, which has a structure which is located on the same straight line passing through the center of the motor, and the end portion of the temporarily fixed windings in the grooves provided in the ribs for receiving the control board, it Corresponding winding terminals on the control board are easy to understand. In other words, the occurrence of defects due to wiring mistakes can be reduced and the working time can be shortened.
[0022]
According to a fourth aspect of the present invention, in the motor according to any one of the first to third aspects, a positioning portion for positioning is provided on the stator and the control board. The position of the groove for stopping and the position of the winding mounting terminal mounted on the corresponding control board can be surely matched. That is, it has the effect of reducing the occurrence of defects due to wiring mistakes and shortening the work time.
[0023]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0024]
(Embodiment 1)
FIG. 1 is a cross-sectional view of a motor according to Embodiment 1 of the present invention (a motor integrated with a pump in this figure), and FIG. 2 is a detailed perspective view of a control board and a stator in the motor. In each figure, the same reference numerals as those in the conventional technique are assigned to the same components as those in the conventional technique.
[0025]
1 and 2, 1 is a stator, 2 is a stator core, 3 is a board receiver, 3a is a rib for positioning a control board, 4 is a winding, 5 is a motor frame, 6 is an impeller, 7 is a pump chamber, 8 Is a partition, 9 is a casing, 10 is a driven magnet, 11 is a bearing, 12 is a shaft, 13a and 13b are bearing plates, 14 is an O-ring, 15 is a control board, 16 is a notch for positioning, and 17 A winding mounting terminal 18 is a driver IC, and since each of these components has the same configuration as that of the prior art, a detailed description thereof will be omitted.
[0026]
The motor according to the first embodiment is characterized by the control board 15 and its support structure in the stator 1, and the details thereof will be described below with reference to FIG.
[0027]
As shown in FIG. 2, the control board 15 is provided with a plurality of winding attachment terminals 17. Further, a notch 16 is provided on the outer periphery of the control board 15 to indicate the position of the positioning rib 3 a of the board receiver 3 and to determine the positions of the stator 1 and the control board 15. Further, a cutout portion 20 is provided on the outer peripheral portion of the control board 15 so as to be located outside the plurality of winding mounting terminals 17 and on the same straight line passing through the center of the motor.
[0028]
The stator 1 in the motor has positioning ribs 3a for holding the control board 15 with claws on the circumferential end surface of the cylindrical board receiver 3, and separately from the positioning ribs 3a, It has a plurality of ribs 3b that hit the surface near the circumference and receive the control board 15. A groove 19 for temporarily fixing the winding end portion is provided on the surface of the end portion on the control board side of the receiving rib 3b. The height of the receiving rib 3b is set so that a gap is formed between the control board 15 and the bottom of the partition wall 8 in the pump (5 mm in the first embodiment), and the partition wall 8 is condensed. Even so, the control board 15 is not greatly affected. Further, the same number of ribs 3b as receiving the control board 15 are provided as many as the end portions of the windings 4, and the ribs 3b are positioned corresponding to the winding attachment terminals 17. Further, the position of the groove 19 of the rib 3b for receiving the control board 15 and the position of the winding mounting terminal 17 mounted on the control board 15 are on the same straight line passing through the center of the motor.
[0029]
Further, the innermost side of the motor frame that is disposed outside the control board 15 and forms the motor outline, and the deepest part of the notch 20 provided on the outer circumference side of the winding mounting terminal 17 mounted on the control board 15. The distance is set to be more than the insulation distance.
[0030]
Although not shown, the motor is provided with a hall sensor for detecting the rotational position of the driven magnet 10, and the positioning rib 3a is provided so that the output from the hall sensor is stabilized. ing.
[0031]
In the motor of the first embodiment configured as described above, components that can be configured as parts are assembled individually, and are sequentially combined. That is, the control board 15 on which components are mounted is attached to the stator 1 around which the predetermined winding 4 is wound. Further, the motor is manufactured in such a manner that the parts are incorporated into the motor frame 5.
[0032]
When the control board 15 is attached to the stator 1, the end of the winding 4 is temporarily fixed to the groove 19 of the rib 3 b for receiving the control board 15. Since the cutout portion 20 and the mounted winding mounting terminal 17 are arranged, the end portion of the winding 4 is removed from the groove 19 of the rib 3b for receiving the control board 15, and the cutout portion 20 is removed. As a guide, the winding 4 is wound around the winding mounting terminal 17 so that the winding 4 of the stator 1 and the control board 15 can be easily connected. Since the end of the winding 4 of the stator 1 corresponds to the same number and the same number of the winding mounting terminals 17 and the notches 20 on the control board 15, the connection can be easily performed and the working time can be shortened. . Furthermore, since the depth of the notch 20 on the control board 15 is equal to or greater than the insulation distance, the insulation distance can be secured.
[0033]
【The invention's effect】
As is clear from the above description, the motor of the present invention is provided with a groove portion for temporarily fixing the winding end portion on the surface side of the rib for receiving the control board of the stator in contact with the control board, and matches the terminal position of the control board. Thus, the terminal of the control board corresponding to the end of the winding is not mistaken. Further, since the temporarily fixed winding may be removed and directly connected to the terminal of the control board, the winding is less likely to be damaged. Furthermore, since the depth of the notch on the control board side is equal to or greater than the insulation distance, the insulation distance can be secured. Thus, since the stator winding and the control board terminal can be easily connected, the operation time can be shortened, and a highly reliable motor can be provided with less defects during and after assembly.
[Brief description of the drawings]
1 is a sectional view of a motor according to a first embodiment of the present invention. FIG. 2 is a perspective view of a control board and a stator in the motor. FIG. 3 is a sectional view of a conventional motor. Perspective view of stator 【Explanation of symbols】
DESCRIPTION OF SYMBOLS 1 Stator 2 Stator core 3 Board receiver 3a Control board positioning rib 3b Control board receiving rib 4 Winding 5 Motor frame 6 Impeller 7 Pump chamber 8 Bulkhead 9 Casing 10 Driven magnet 11 Bearing 12 Shaft 13a Bearing plate a
13b Bearing plate b
14 O-ring 15 Control board 16 Notch for positioning 17 Winding mounting terminal 18 Driver IC
19 Winding end temporary fixing groove 20 Notch

Claims (4)

A stator subjected to winding a motor arrangement for mounting a disk-shaped control substrate, a cylindrical substrate receiving provided on the stator, a circumferential edge portion of the substrate receiving, positioning and takes stop of the control board surface and a plurality of ribs for positioning, projecting ribs for multiple receiving the tip receiving the contact with the control board to the outer peripheral portion near the surface of the control board in contact with the control board of the ribs for the receiving of on the side, a groove for temporarily fixing the winding end portion of the stator is provided the same number and the end-winding, the control board has a cutout portion on the outer peripheral side, said groove motor and the notch The distance between the deepest part of the notch and the inner peripheral side of the motor frame that forms the motor outline and is arranged outside the control board is equal to or greater than the insulation distance. be characterized in that it and the Motor. 2. The motor according to claim 1 , wherein the number of the receiving ribs is the same as the number of ends of the stator winding . 3. The motor according to claim 1 , wherein the position of the groove and the position of the winding mounting terminal mounted on the control board are arranged on the same straight line passing through the center of the motor. The stator and the control board, the motor according to claim 1, characterized in that a positioning portion for positioning.

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