JP2012205486A - Motor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor device which can be turned to a configuration coping with various power supply voltages without largely changing specifications of the device.SOLUTION: The motor device comprises: a motor coil 10; a resistor 20 serially connected with the motor coil 10; and a first terminal 30 and a second terminal 40 for connecting power supply to a circuit whose components are the motor coil 10 and the resistor 20. One terminal 11 of the motor coil 10 is directly connected to the first terminal 30, the other terminal 12 of the motor coil 10 is directly connected to one foot 22 of the resistor 20, and the other foot 23 of the resistor 20 is directly connected to the second terminal 40.

Description

  The present invention relates to a motor device using a motor as a drive source.

  Patent Document 1 listed below describes a motor device that operates a drain valve of a washing machine. In this device, the voltage of the power source is directly applied to the motor (not transformed) (see FIG. 10 of Patent Document 1).

JP 2000-350893 A

  In this type of motor device, when the power supply voltage (commercial power supply voltage) is different, it is necessary to change the specifications of the device. For example, when obtaining a motor device for a 200V power supply, it is necessary to separately manufacture a motor device having a larger number of turns of a motor coil than a motor device for a 100V power supply or a device incorporating a transformer.

  In view of the above circumstances, the problem to be solved by the present invention is to provide a motor device that can be adapted to various power supply voltages without greatly changing the specifications of the device.

  In order to solve the above problems, a motor device according to the present invention connects a power source to a motor coil, a resistor connected in series with the motor coil, and a circuit having the motor coil and the resistor as components. A first terminal and a second terminal, wherein one terminal of the motor coil is directly connected to the first terminal, and the other terminal of the motor coil is one of the resistors The gist is that the resistor is directly connected and the other leg of the resistor is directly connected to the second terminal.

  With such a configuration, it is possible to obtain devices corresponding to various power supply voltages (commercial power supply voltages) by changing the resistor connected in series with the motor coil (changing the resistance value of the resistor). Thus, it is not necessary to change the specifications of the apparatus as in the conventional configuration. Moreover, since the other terminal of the motor coil is configured to be directly connected to one leg of the resistor, it is necessary to use terminals other than the terminals (first terminal and second terminal) connected to the power source. Absent. That is, according to the above configuration, it is possible to prevent an increase in the number of terminals due to the presence of “resistors” for making the device applicable to various power supply voltages.

  In this case, one leg of the resistor is formed in a wire shape, and the other end of the motor coil may be wound around the wire leg.

  Thus, if a resistor having a general structure having wire-like legs is used, the end of the motor coil can be wound around the legs of the resistor.

  The resistor, the first terminal, and a base member to which the second terminal is attached are further provided, and one end of the motor coil is wound around a terminal winding portion of the first terminal, Both the terminal winding portion around which one end of the motor coil is wound and the one leg of the resistor around which the other end is wound may protrude from one side of the base member.

  Thus, if the terminal winding portion around which one end of the motor coil is wound and the one leg of the resistor around which the other end is wound protrude from one side of the base member, The terminal can be easily wound. Moreover, if the both ends of the motor coil are joined to one end of the terminal winding part and the resistor by soldering, solder joining work (for example, joining by dipping) becomes easy (the one of the terminal of the motor coil). The joining work to the terminal winding part and the joining work to one leg of the resistor of the other terminal of the motor coil can be performed at once).

  In this case, the other leg of the resistor protrudes from one side of the base member, and the second terminal similarly protrudes from one side of the base member. It suffices to have a resistance connection portion connected to.

  As described above, when the resistor is attached to the base member with one leg of the resistor and the other leg facing the same direction, the resistor can be easily attached to the base member. In addition, when both terminals of the motor coil are joined to a predetermined place by solder, the solder joint work of the other leg of the resistor and the resistance connection portion can be performed together with the solder joint work. .

  Moreover, the edge which can cut | disconnect the electric wire which comprises the said motor coil should just be formed in the surrounding surface of the terminal winding part of said 1st terminal.

  With such a configuration, it is possible to cut the electric wire constituting the motor coil without using a cutting tool or the like (after winding one end of the motor coil around the terminal winding portion and then pulling it strongly, Terminal is cut at the edge of the terminal winding part). Moreover, since the electric wire which comprises a motor coil should just be cut | disconnected by the edge of a terminal winding part in this way, a big load is not applied to one leg | leg of the resistor around which the other terminal of a motor coil is wound (resistance element There is no need to cut the wire with one leg). Therefore, it is not necessary to use a resistor having a high strength leg, and a general resistor can be used.

  Moreover, the main body portion of the resistor may be held by a resistance holding portion formed on a base member to which the first terminal and the second terminal are fixed.

  In this way, if the resistor main body is held by the resistance holding portion of the base member, the resistance is maintained until the resistor leg is connected to the resistance connecting portion of the second terminal or the other terminal of the motor coil. Since the body can be held on the base member, connection work (for example, solder joining work) is facilitated. Further, since the main body portion of the resistor is held by the base member, the load applied to the legs of the resistor is reduced accordingly. Therefore, the connection between the resistor leg and the resistance connecting portion of the second terminal of the motor coil or the other terminal of the motor coil is not disconnected, or the legs of the resistor are not cut off.

  Further, the base member may be formed with a foot support hole that is a through hole through which one foot of the resistor is inserted.

  With such a configuration, one leg of the resistor is supported by the foot support hole, so that the one leg of the resistor is prevented from being cut by a force for winding the other end of the motor coil.

  According to the present invention, motor devices corresponding to various power supply voltages (commercial power supply voltages) can be obtained simply by changing the resistor (the resistance value thereof) without greatly changing the specifications of the device as in the conventional configuration. be able to. Further, an increase in terminals due to the use of the resistor can be prevented.

It is the disassembled perspective view which showed the whole motor apparatus concerning this embodiment. FIG. 2 is a perspective view showing a part of the configuration of the motor device shown in FIG. 1 (upside down from FIG. 1). FIG. 3 is an exploded perspective view of the configuration shown in FIG. 2 (a motor coil is omitted). FIG. 3 is a perspective view of the configuration shown in FIG. 2 viewed from a direction different from that in FIG. 2 (a motor coil is omitted). FIG. 3 is a circuit diagram constructed by the configuration shown in FIG. 2.

  Hereinafter, embodiments of the present invention will be described in detail. In the following description, the axial direction refers to the axial direction of the motor coil 10 (the axial direction of the ring-shaped portion of the base member 50). Further, the upper side (upper side) means the upper side (lower side in FIG. 2) in FIG. 1, and the lower side (lower side) means the lower side in FIG. 1 (upper side in FIG. 2).

  A motor apparatus 1 according to the present embodiment shown in FIG. 1 as a whole is an apparatus that transmits the power of a motor that is a drive source to a driven body 91 via a power transmission mechanism 90. These motor and power transmission mechanism 90 are accommodated in an upper case 92 and a lower case 93. Any configuration other than the configuration described in detail below (the configuration other than the configuration shown in detail in FIGS. 2 to 4) may be adopted. For example, the power transmission mechanism 90 includes a toothed wheel train as illustrated. Moreover, the driven body 91 includes a drain valve of a washing machine.

  As shown in FIGS. 2 to 4, the motor device 1 includes a motor coil 10, a resistor 20 connected in series with the motor coil 10, and a first terminal 30 and a second terminal 40. . Further, these members are attached to the base member 50.

  The motor coil 10 is wound around the coil winding portion 51 of the base member 50. The coil winding portion 51 is a ring-shaped portion in which flange portions 511 are formed on both sides in the axial direction as shown in the drawing. The electric wire wound between the flange portions 511 constitutes the motor coil 10. Due to the magnetic field generated by the current flowing through the motor coil 10, the rotor 60 of the motor disposed inside the ring-shaped portion rotates.

  The resistor 20 is an electrical component connected in series with the motor coil 10. The resistor 20 has a main body portion 21 and wire-like feet (lead wire terminals) protruding from both sides of the main body portion 21 (hereinafter referred to as one foot 22 provided on one side of the main body portion 21; The one provided on the other side of the main body 21 is referred to as the other leg 23). That is, the resistor 20 is a general one that is widely used. The resistor 20 is held by the flat plate portion 52 of the base member 50 as follows. The flat plate portion 52 of the base member 50 is provided with a resistance holding portion 521 formed so that the two walls face each other at an interval slightly smaller than the width of the main body portion 21 of the resistor 20. The main body portion 21 of the resistor 20 is held between the two walls constituting the resistance holding portion 521. Further, a foot support hole 522 that penetrates the flat plate portion 52 of the base member 50 is formed in the vicinity of the resistance holding portion 521, and both feet of the resistor 20 are inserted into the foot support hole 522. Specifically, one leg 22 and the other leg 23 of the resistor 20 are bent in the same direction from a predetermined position near the root, and the bent part is inserted into the foot support hole 522. ing. The two legs of the resistor 20 inserted through the foot support hole 522 have a predetermined length protruding from the lower surface of the flat plate portion 52 from the tip (tip of the bent portion). As will be described later, the other leg 23 of the resistor 20 protrudes from the lower surface of the flat plate portion 52 through the leg insertion hole 411 formed in the second terminal 40.

  The first terminal 30 includes a base end portion 31, a terminal winding portion 32 extending in a direction substantially orthogonal from one side of the base end portion 31, and a power source extending in a direction substantially orthogonal from the other side of the base end portion 31. And a connecting portion 33. In this embodiment, the terminal winding part 32 and the power supply connection part 33 are extended so that each front-end | tip may face the mutually opposite direction. Moreover, the terminal winding part 32 is narrower than the base end part 31 and the power supply connection part 33, and the unevenness | corrugation for winding the terminal of the motor coil 10 is formed in the surrounding surface. Moreover, the cross section of the terminal winding part 32 has a shape with an edge (corner) for cutting the electric wire (terminal) constituting the motor coil 10. In order to obtain such an edged shape, the first terminal 30 may be formed by press punching.

  On the other hand, the second terminal 40 extends from the base end portion 41, the resistance connection portion 42 extending in a direction substantially orthogonal from one side of the base end portion 41, and the direction orthogonal to the other side of the base end portion 41. And a power supply connection portion 43. In this embodiment, the terminal winding part 32 in the 1st terminal 30 and the resistance connection part 42 in the 2nd terminal 40 have the completely same shape. This is because the first terminal 30 and the second terminal 40 are manufactured by a common mold (manufactured by the same process). Therefore, the resistance connection portion 42 has a shape with irregularities and edges similar to that of the terminal winding portion 32. However, the resistance connection portion 42 may not have such a shape (the unevenness and edges are not necessary for the resistance connection portion 42). Is).

  The first terminal 30 and the second terminal 40 are fixed to the flat plate portion 52 of the base member 50 as follows. The flat plate portion 52 of the base member 50 is formed with a terminal mounting hole 523 having a rectangular shape with a cross section opened outward. A groove 5231 connected to each of the two terminal attachment holes 523 is formed on the lower surface of the flat plate portion 52 where the terminal attachment holes 523 are formed. The first terminal 30 and the second terminal 40 are fixed by press fitting the base end portions 31 and 41 into the terminal mounting holes 523. When the base end portions 31 and 41 are press-fitted into the terminal mounting holes 523, the terminal winding portion 32 of the first terminal 30 and the resistance connection portion 42 of the second terminal 40 pass through the groove 5231. When the base end portions 31 and 41 of the respective terminals are press-fitted to the back, the terminal winding portion 32 of the first terminal 30 and the resistance connection portion 42 of the second terminal 40 are positioned at the deepest position of the groove 5231. . That is, it is in a state of protruding from the lower surface of the flat plate portion 52.

  Further, a foot insertion hole 411 that is a through hole is formed in the base end portion 41 of the second terminal 40. The other leg 23 of the resistor 20 is inserted into the leg insertion hole 411. Specifically, the foot insertion hole 411 is formed near the root of the resistance connection portion 42 at the base end portion 41 of the second terminal 40. Therefore, the other leg 23 of the resistor 20 inserted through the foot insertion hole 411 and the resistance connection portion 42 of the second terminal 40 protrude from the lower surface of the flat plate portion 52 in a state of being close to each other. Yes. In addition, if there is such a foot insertion hole 411, the other leg 23 of the resistor 20 and the resistance connection portion 42 of the second terminal 40 can be easily brought close to each other, The foot insertion hole 411 is not necessarily formed in the second terminal 40. In addition, the first terminal 30 does not need the foot insertion hole 411, but the first terminal 30 and the second terminal 40 have the same shape by forming the foot insertion hole 411 (commonization). can do.

  One terminal 11 of the motor coil 10 is directly connected to the first terminal 30 fixed at a predetermined position of the base member 50. Specifically, one terminal 11 of the motor coil 10 is connected to the first terminal 30 via a hooking protrusion provided on a side surface (a surface along the thickness direction of the flat plate portion 52) of the flat plate portion 52 of the base member 50. Is wound around the terminal winding portion 32. Since the terminal winding portion 32 has irregularities, one terminal 11 of the motor coil 10 is wound around the terminal irregularities. In this wound state, one terminal 11 of the motor coil 10 and the terminal winding part 32 are joined by the solder S.

  The other end 12 of the motor coil 10 is directly connected to one leg 22 of the resistor 20. Specifically, the other terminal 12 of the motor coil 10 is drawn out along a drawing groove 525 formed along the planar direction of the flat plate portion 52 of the base member 50 and wound around one leg 22 of the resistor 20. It has been. In this wound state, the other terminal 12 of the motor coil 10 and one leg 22 of the resistor 20 are joined by the solder S.

  Thus, one terminal 11 of the motor coil 10 is wound around the first terminal 30 (terminal winding part 32), and the other terminal 12 is wound around one leg 22 of the resistor 20. When manufacturing the motor apparatus 1, the electric wire (conductor wire) which comprises the motor coil 10 is drawn in the following procedure. First, the electric wire is wound around one leg 22 of the resistor 20 to such an extent that it cannot be unwound. The electric wire drawn out along the drawing groove 525 is wound around the coil winding portion 51 of the base member 50. After winding the electric wire around the coil winding portion 51 a predetermined number of times (the number of times according to a predetermined specification of the motor coil 10), the electric wire is connected to the terminal winding portion 32 of the first terminal 30 via the hooking protrusion 524. Wrap it to the extent that it cannot be unwound. When the wire is sufficiently wound around the terminal winding portion 32 of the first terminal 30, the electric wire is pulled strongly. Thereby, the winding end part of an electric wire is cut | disconnected by the edge of the terminal winding part 32 of the 1st terminal 30, and routing of an electric wire is completed.

  On the other hand, the other leg 23 of the resistor 20 is directly connected to the second terminal 40 fixed at a predetermined position of the base member 50. Specifically, as described above, the resistance connection portion 42 of the second terminal 40 and the other leg 23 of the resistor 20 protrude from the lower surface of the flat plate portion 52 in a state of being close to each other. The solder S is applied so as to cover these two shaft-like members, so that both are electrically connected.

  By connecting in this way, a circuit in which the motor coil 10 and the resistor 20 are connected in series as shown in FIG. 5 is constructed. The power supply connection portion 33 of the first terminal 30 and the power supply connection portion 43 of the second terminal 40 serve as terminals for connecting the power supply P to a circuit having the motor coil 10 and the resistor 20 as components. The power source P is connected to the power source connecting portion 33 of the first terminal 30 and the power source connecting portion 43 of the second terminal 40, and a voltage is applied between both terminals, whereby the power source voltage is applied to the electric wires constituting the motor coil 10. And the electric current according to the resistance value of the resistor 20 flows. When a current flows, a magnetic field is generated from the motor coil 10, and the rotor 60 of the motor rotates.

  According to the motor device 1 according to the present embodiment having the above-described configuration, the following operational effects are achieved.

  Since the motor device 1 according to the present embodiment has a configuration in which the resistor 20 is connected in series to the motor coil 10, various changes can be made by changing the resistor 20 (changing the resistance value of the resistor 20). The power supply voltage (commercial power supply voltage) can be used. That is, there is no need for a large specification change such as increasing the number of turns of the motor coil 10. For example, when the motor device 1 for 100V is changed to the motor device 1 for 200V, the resistance value of the resistor 20 in the motor device 1 for 200V is larger than the resistance value of the resistor 20 in the motor device 1 for 100V. What is necessary is just to enlarge a predetermined amount. It is also possible to change the motor device 1 to a specification in which the other terminal 12 of the motor coil 10 is directly connected to the resistance connection portion 42 of the second terminal 40 without using the resistor 20.

  And in this embodiment, since the terminal (the other terminal 12) of the motor coil 10 was directly wound around one leg 22 of the general resistor 20 having a wire-like leg, the resistor 20 was used. Can be prevented (there is no need to separately provide a terminal for winding the terminal of the motor coil 10). That is, in the motor device 1 according to the present embodiment, even if the power supply voltage changes due to the use of the resistor 20, it is not necessary to change the large specification of the device, and the number of parts increases due to the presence of the resistor 20. It is excellent in that there is no.

  In the motor device 1 according to the present embodiment, the terminal winding portion 32 of the first terminal 30 around which one terminal 11 of the motor coil 10 is wound and the resistor around which the other terminal 12 of the motor coil 10 is wound. One of the two legs 22 protrudes from one side of the base member 50 (the surface below the flat plate portion 52 in the base member 50). That is, since the part around which both ends of the motor coil 10 are wound protrudes in the same direction, the winding operation of the terminal of the motor coil 10 is easy. In addition, as in the present embodiment, the terminal winding portion 32 of the first terminal 30 and the one leg 22 of the resistor 20 are joined to the terminal of the motor coil 10 wound around each by solder S. If so, since both joint portions protrude from one side of the base member 50, joining by the solder S in the terminal winding part 32 and joining by the solder S in one leg 22 of the resistor 20 are performed at a time. (For example, it can be performed at once by dipping the joining portion in the solder bath), and the joining operation is easy.

  Further, the resistance connecting portion 42 of the second terminal 40 and the other leg 23 of the resistor 20 protrude from the lower surface of the flat plate portion 52 in a state of being close to each other. Therefore, the joining of the resistance connecting portion 42 of the second terminal 40 and the other leg 23 of the resistor 20 by the solder S is performed by joining the one terminal 11 of the motor coil 10 and the first terminal 30 by the solder S. , And the other end 12 of the motor coil 10 and one leg 22 of the resistor 20 can be joined together with the solder S. Furthermore, since the one leg 22 and the other leg 23 of the resistor 20 face the same direction, the resistor 20 can be easily attached to the base member 50.

  Here, in order to securely join the resistance connecting portion 42 of the second terminal 40 and the other leg 23 of the resistor 20 by the solder S, a configuration for fixing the other leg 23 of the resistor 20. May be formed in the resistance connection portion 42. For example, a through hole may be formed in the resistance connection portion 42 and the other leg 23 of the resistor 20 may be bent before being joined by the solder S so as to be press-fitted and fixed in the through hole. As a result, the other leg 23 of the resistor 20 and the resistance connection portion 42 of the second terminal 40 are in close contact with each other, so that the joining with the solder S can be performed more reliably.

  Moreover, the edge which can cut | disconnect one terminal 11 of the motor coil 10 is formed in the surrounding surface of the terminal winding part 32 of the 1st terminal 30, and the electric wire which comprises the motor coil 10 is the predetermined | prescribed above-mentioned After being routed along the path, the winding end portion of one end 11 of the motor coil 10 can be cut by the edge. That is, first, an electric wire is wound around one leg 22 of the resistor 20, the motor coil 10 is formed on the coil winding portion 51 of the base member 50, and finally the electric wire is cut at the edge of the terminal winding portion 32. Therefore, a large load is not applied to one leg 22 of the resistor 20 around which the other terminal 12 of the motor coil 10 is wound (a step of cutting the electric wire on the one leg 22 side of the resistor 20 is not necessary). . Therefore, it is not necessary to use the resistor 20 having a high-strength leg that can withstand the tensile force necessary for cutting the electric wire, and a general resistor 20 can be used.

  The base member 50 is formed with a resistance holding portion 521 that sandwiches and holds the main body portion 21 of the resistor 20. Therefore, the resistor 20 can be held in the base member 50 until the legs of the resistor 20 are connected to the resistance connection portion 42 of the second terminal 40 or the other terminal 12 of the motor coil 10. Connection work such as joining work by the solder S is facilitated. Further, since the main body portion 21 of the resistor 20 is held by the resistance holding portion 521 of the base member 50, the load on the legs of the resistor 20 is reduced accordingly. Accordingly, the connection between the leg of the resistor 20 and the resistance connection portion 42 of the second terminal 40 of the motor coil 10 or the other terminal 12 of the motor coil 10 is disconnected, or the leg of the resistor 20 is cut off. There is nothing to do.

  Further, since one leg 22 of the resistor 20 is supported by a leg support hole 522 formed in the base member 50, the one leg 22 of the resistor 20 is applied by a force for winding the other end 12 of the motor coil 10. Is prevented from being cut off.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Motor apparatus 10 Motor coil 11 One terminal 12 The other terminal 20 Resistor 21 Main body part 22 One leg 23 The other leg 30 First terminal 32 Terminal winding part 40 Second terminal 42 Resistance connection part 50 Base member 521 Resistance holding portion 522 Foot support hole S Solder

Claims (7)

A motor coil;
A resistor connected in series with the motor coil;
A first terminal and a second terminal for connecting a power source to a circuit comprising the motor coil and the resistor as components, and
One end of the motor coil is directly connected to the first terminal;
The other end of the motor coil is directly connected to one leg of the resistor,
The other leg of the resistor is directly connected to the second terminal.   The motor device according to claim 1, wherein one leg of the resistor is formed in a wire shape, and the other end of the motor coil is wound around the wire-like leg. A base member to which the resistor, the first terminal, and the second terminal are attached;
One terminal of the motor coil is wound around a terminal winding part provided in the first terminal, and a terminal winding part around which one terminal of the motor coil is wound and the other terminal are wound. The motor device according to claim 2, wherein one of the legs of the resistor protrudes from one side of the base member. The other leg of the resistor protrudes from one side of the base member,
4. The motor device according to claim 3, wherein the second terminal includes a resistance connection portion that projects from the one side of the base member and is connected to the other leg of the resistor.   The peripheral surface of the winding portion of the first terminal is formed with an edge capable of cutting the electric wire constituting the motor coil. The motor apparatus as described.   The motor device according to any one of claims 3 to 5, wherein the main body portion of the resistor is held by a resistance holding portion formed on the base member.   The motor device according to any one of claims 3 to 6, wherein a foot support hole, which is a through hole through which one foot of the resistor is inserted, is formed in the base member.

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