JPH0595177U - Substrate and motor actuator device - Google Patents

Abstract

(57) [Summary] [Purpose] The number of parts is greatly reduced, cost and assembly are excellent, and multiple parts can be unitized.
(EN) A substrate and a motor actuator device whose range of application is further expanded. [Structure] The motor actuator device 10 includes a substrate 14
Is assembled. The board 14, the gear support 18 that supports a plurality of gears, the power supply terminal 20 that supplies power to the motor 60, and the terminal 2 to which the potentiometer 74 is connected.
2 and the connector portion 24 are integrally provided. Therefore, the number of parts is greatly reduced as compared with the conventional one, the cost is reduced, and the assemblability is improved.
Further, each gear can be assembled into a unit, the potentiometer 74 can be easily replaced, and the range of application is wide.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a substrate used for a deceleration device or the like that reduces the rotation of a motor by a plurality of gears to rotate an output shaft, and also relates to a motor actuator device for rotating an air volume adjustment damper or the like of an automobile air conditioner. ..

[0002]

[Prior Art]

 For example, a motor-actuator device is used to operate an air-conditioning damper for an automobile air conditioner.

In this type of motor actuator device, a motor is arranged in a housing case. The housing case also rotatably supports an output shaft that is connected to the air volume adjustment damper via an arm, and further has a plurality of gears assembled to connect the rotation shaft of the motor and the output shaft. There is. Further, an electric circuit section called a switch unit is assembled in the housing case.

Here, as shown in FIGS. 16 and 17, the switch unit 110 has a structure in which a metal plate 114 is fixed to a resin-made block-shaped insulator 112 by heat staking or the like. .. A brush 116 is formed on the plate 114 and extends upward from the insulator 112 while being fixed to the insulator 112. The motor (not shown) is connected to the power supply terminal portion 118 of the insulator 112 after the plate 114 is fixed. A plurality of connect pins 122 are press-fitted and attached to the connector portion 120 of the insulator 112 after the plate 114 is fixed, and are exposed to the outside from the connector portion 120. The switch unit 110 having the above configuration is housed in the housing case 124 and covered with the cover 126.

In this motor actuator device, the brush 116 and the power feeding terminal portion 118 are electrically connected to the connect pin 122 via the plate 114, and the connect pin 122 is connected to an external control device. As a result, the rotational position of the output shaft is detected by the brush 116 and is supplied to the motor through the power supply terminal 118, the motor rotates while being controlled by the control device, and this rotational force is applied to a plurality of gears. It is decelerated and transmitted via and the output shaft is rotated to a predetermined position. As a result, the air volume adjustment damper is moved to a predetermined rotation position.

[0006]

[Problems to be solved by the device]

 By the way, in such a conventional motor actuator device, in addition to the motor and the plurality of gears as described above, the switch unit 110, that is, the insulator 112, the plate 114, or the plurality of connecting pins 122 and the like is used. However, because of the large number of parts, assembly was poor and cost was high. Further, it is necessary to separately assemble a plurality of gears in addition to the switch unit 110, and the assembling property is also poor in this respect.

Further, since the brush 116 for detecting the rotational position of the motor is fixed to the insulator 112 as described above, the pattern for controlling the rotational position of the motor is uniform (in other words, the arrangement of the brushes is fixed). There is also a drawback that the pattern cannot be changed) and it cannot be used for different dampers, for example.

In consideration of the above facts, the present invention significantly reduces the number of parts, excels in cost and assemblability, enables a plurality of parts to be unitized, and further expands the range of application. The purpose is to obtain a device.

[0009]

[Means for Solving the Problems]

 According to another aspect of the present invention, there is provided a substrate, wherein the motor is connected to a gear support portion that is connected to a rotation shaft of the motor and supports a plurality of gears that reduce the rotational force of the motor and transmit the rotation force to the output shaft. A power supply terminal for supplying power to the terminal, a terminal portion to which an element for controlling the motor is connected, the power supply terminal and the terminal portion are electrically connected by a predetermined circuit and also electrically connected to the outside. The connector part and the connector part are integrally provided.

According to a second aspect of the present invention, in the substrate according to the first aspect, the element connected to the terminal portion is a rotational position detecting element, and the output shaft is connected with the connection to the terminal portion. Is mechanically connected to the output shaft so that the rotational position of the output shaft can be detected.

According to another aspect of the motor actuator device of the present invention, a motor, a plurality of gears connected to a rotation shaft of the motor to reduce the rotational force of the motor and transmit the rotation force to the output shaft, and to the output shaft. A rotational position detection element that is connected to detect the rotational position of the output shaft, a gear support portion that supports the plurality of gears, a power supply terminal that is connected to the motor and supplies power to the motor, and the rotational position detection device. A substrate integrally provided with a terminal portion to which the element is connected, and a connector portion for electrically connecting the power supply terminal and the terminal portion with each other in a predetermined circuit and for electrically connecting to the outside, It is characterized by having.

[0012]

[Action]

 In the board according to the first aspect, a plurality of gears are assembled and a motor and an element are connected to the board in which the respective parts are integrally provided. Also, the connector of the external control device is connected to the connect pin.

Here, since each part of the board is provided integrally with each other, the number of parts is significantly reduced compared to the conventional one, resulting in a low cost and the placement of all parts on the board. Since it is installed, positioning is done by assembling and the assembling property is also improved. In addition, it becomes possible to unitize by assembling a plurality of gears to the gear support portion. Furthermore, different motors and elements can be used, and the range of application is wide.

In the substrate according to the second aspect, since the rotational position detecting element is connected to the terminal portion of the substrate and is mechanically connected to the output shaft, that is, the rotational position detecting element only outputs the output signal. Since it is connected to the shaft, the workability of replacing the rotational position detection element is improved and the range of application is expanded.

In the motor actuator device according to a third aspect of the present invention, the plurality of gears are assembled and supported by the gear support portion of the substrate on which each portion is integrally provided. Further, the motor is connected to a power supply terminal of the board for power supply, and the rotational position detecting element is connected to a terminal portion of the board and connected to the output shaft. Also, the connector of the external control device is connected to the connector section.

As a result, the rotational force of the motor is decelerated and transmitted to rotate the output shaft, and the rotational position of the output shaft is detected to control the motor.

Here, since the respective parts of the board are integrally provided, the number of parts is greatly reduced as compared with the conventional one, the cost is reduced and the assemblability is improved. In addition, by assembling a plurality of gears on the gear support, unitization is possible. Furthermore, by simply changing the motor and the rotational position detection element, it is possible to support dampers used in other different modes, and the range of application is wide.

[0018]

【Example】

 FIG. 1 shows an exploded perspective view of a motor actuator device 10 according to a first embodiment of the present invention. 2 shows a plan view of the internal structure of the motor actuator device 10, and FIG. 3 shows a developed vertical sectional view of the motor actuator device 10 developed along the line 3-3 in FIG. Has been done. Further, FIGS. 4 to 9 show six views of the substrate 14 according to the present invention used in the motor actuator device 10.

In the motor actuator device 10, a substrate 14 and a support plate 16 are arranged in a housing case 12 formed in a box shape having an open top. The substrate 14 and the support plate 16 are formed in a box shape by fitting each other.

The substrate 14 has a structure in which a gear support portion 18, a power supply terminal portion 20, a terminal portion 22, and a connector portion 24 are integrally provided.

Support shafts 26, 28, 30 are arranged in the gear support portion 18 in parallel with each other. A gear 32 and a gear 34 are attached to the support shaft 26. The gear 32 located above is configured such that a large-diameter gear portion 32A and a small-diameter gear portion 32B are coaxially and integrally provided. The gear 34 located below is supported so as to be rotatable relative to the gear 32, and has a large-diameter gear portion 34A and a small-diameter gear portion 34B coaxially and integrally provided. ..

On the other hand, a gear 36 and a gear 38 are attached to the support shaft 28. The gear 36 is configured such that a large-diameter gear portion 36A and a small-diameter gear portion 36B having a relatively long width are coaxially and integrally provided. The gear portion 36A of the gear 36 meshes with the gear portion 32B of the gear 32, and the lower end portion of the gear portion 36B in the axial direction meshes with the gear portion 34A of the gear 34.

The lower gear 38 is supported so as to be rotatable relative to the gear 36, and a large-diameter gear portion 38A and a small-diameter gear portion 38B are coaxially and integrally provided. Has been done. As shown in detail in FIG. 1, a concave portion 40 (see FIG. 3) is coaxially formed on the end surface of the gear portion 38A on the gear 36 side corresponding to the gear portion 36B of the gear 36. The recess 40 has a depth (axial direction) larger than the thrust rattling between the gear 36 and the gear 38. With the gear 36A of the gear 36 inserted in the recess 40, 38 is assembled. Therefore, the gear portion 36A is set so as not to come out of the recess 40 due to the thrust play between the gear 36 and the gear 38. The gear portion 38A of the gear 38 meshes with the gear portion 34B of the gear 34.

A gear 42 is attached to the support shaft 30. The gear 42 is configured such that a large-diameter gear portion 42A and a small-diameter gear portion 42B having a relatively long width are coaxially and integrally provided. The gear portion 42A of the gear 42 meshes with the gear portion 38B of the gear 38.

A through hole 44 is formed in a substantially central portion of the substrate 14 on the side of the gear 42, and a shaft 46 as an output shaft is rotatably supported. A tip portion of the shaft 46 penetrates the housing case 12 and projects to the outside, and an arm (not shown) is fixed and connected to an air volume adjusting damper or the like via this arm. A gear 48 is coaxially and integrally provided at the other end of the shaft 46 in the axial direction. The gear 48 meshes with the gear portion 42B of the gear 42.

Therefore, the gear 32, the gear 34, the gear 36, the gear 38, the gear 42, and the gear 48 described above are a reduction mechanism having a plurality of stages, and the rotational force of the gear 32 is transmitted through each gear. Then, the shaft 46 is rotated.

A power supply terminal portion 20, a terminal portion 22, and a connector portion 24 are integrally provided at an end portion of the substrate 14 on the side of the gear 48.

A pair of terminal holes 50 are formed in the power supply terminal portion 20. The pair of terminal holes 50 correspond to the pair of terminals 66 of the motor 60, which will be described later, and the terminals 66 are fitted therein and electrically connected. The power supply terminal unit 20 has a role of supplying power to the motor 60.

On the other hand, a plurality of (five in this embodiment) connect holes 52 are formed in the terminal portion 22. As shown in FIG. 4, connect pins 54 are arranged in the connect holes 52. The connect pin 54 is formed by bending a substantially U-shaped thin metal plate having conductivity, and one end of the connect pin 54 corresponds to the connect hole 52. The connection hole 52 corresponds to a terminal 76 of the potentiometer 74 described later, and the terminal 76 is fitted and electrically connected. The other end of the connect pin 54 corresponds to the connector 24.

A fitting hole 56 into which a connection connector (not shown) is fitted is formed in the connector portion 24, and the connect pin 54 projects upward in the fitting hole 56. Each of these connect pins 54 is electrically connected to the above-described power supply terminal section 20 by a predetermined circuit.

A support plate 16 is fitted to the board 14 on which the above-mentioned respective parts are assembled, and covers the respective parts.

A motor holding portion 58 is formed on the support plate 16 at a position corresponding to the power supply terminal portion 20 on the side of the terminal portion 22 and the connector portion 24 of the substrate 14, and the motor 60 is provided. Is housed. Both ends of the motor 60 in the axial direction are so-called floating supported and housed through O-rings 62, respectively. A pair of terminals 66 extend from one end of the motor 60 in the axial direction (the end opposite to the rotary shaft 64). The terminals 66 are fitted into the terminal holes 50 of the power supply terminal unit 20 described above. It is held and electrically connected. On the other hand, a worm gear 68 is integrally fixed to the front end of the rotary shaft 64 of the motor 60. The worm gear 68 meshes with the gear portion 32A of the gear 32 described above. Therefore, the rotational force of the motor 60 is transmitted through each gear to rotate the shaft 46.

An element holding portion 70 is formed on the upper surface of the support plate 16 on the side of the motor holding portion 58 at a position facing the shaft 46 (gear 48). In the element holding portion 70, a through hole 72 is formed coaxially with the shaft 46 (gear 48), and a potentiometer 74 is arranged. Three terminals 76 are extended to the potentiometer 74, and these terminals 76 are fitted and held in the connection holes 52 of the terminal portion 22 and are electrically connected to the connection pins 54. At this time, the rotary shaft 78 of the potentiometer 74 penetrates the through hole 72 and is integrally connected to the gear 48 (shaft 46). Therefore, the rotary shaft 78 of the potentiometer 74 rotates together with the shaft 46, and the rotational position (angle) of the shaft 46 can be detected.

A cover 80 is attached to the housing case 12 in which the above-mentioned components are assembled to cover the housing case 12. An opening 82 is formed at one end of the cover 80 corresponding to the connector portion 24 (fitting hole 56) of the board 14 described above, and the connector portion 24 is exposed to the outside.

Next, the operation of this embodiment will be described. In the motor actuator device 10 having the above configuration, the motor 60 is electrically connected to the connect pin 54 via the power supply terminal portion 20, and the potentiometer 74 is electrically connected to the connect pin 54 via the terminal portion 22. The connector pin 54 is connected to the external control device by fitting the connector pin 54 into the fitting hole 56 of the connector portion 24. As a result, power is supplied from the power supply terminal unit 20 to the motor 60, and the motor 60 is rotated. The rotational force of the motor 60 is decelerated and transmitted through the worm gear 68, the gear 32, the gear 34, the gear 36, the gear 38, the gear 42 and the gear 48, and the shaft 46 is rotated to a predetermined position. As a result, the air volume adjusting damper and the like connected to the shaft 46 are operated.

When the shaft 46 rotates due to the rotation of the motor 60, the rotary shaft 78 of the potentiometer 74 integrally connected to the shaft 46 also rotates, whereby the rotational position of the shaft 46 is detected. Therefore, the motor 60 rotates while being controlled.

Here, since the motor actuator device 10 has a structure in which each part of the substrate 14, that is, the gear support part 18, the power supply terminal part 20, the terminal part 22 and the connector part 24 are integrally provided, Compared with the above, the number of parts is significantly reduced, the cost is reduced, and since the parts mounting positions are all arranged on the substrate 14, positioning is performed by assembling, and the assembling property is also improved. Further, by assembling each of the above-mentioned gears to the gear supporting portion 18, it becomes possible to configure this as a gear unit (unitization). Therefore, the range of application is wide.

In the motor actuator device 10, the potentiometer 74 is assembled so that the terminal 76 is fitted and held in the connect hole 52 of the terminal portion 22 of the board 14, and the rotary shaft 78 is rotated by the gear 48 (the shaft 46). ), That is, electrically and mechanically connected by one assembling operation, the assembling property of the potentiometer 74, that is, the workability of replacing the potentiometer 74 is improved. Furthermore, only by changing the potentiometer 74, it becomes possible to deal with other different dampers and the like, and the range of application is expanded.

Next, another embodiment of the present invention will be described. The same components as those of the first embodiment are designated by the same reference numerals as those of the first embodiment, and the description thereof is omitted.

FIG. 10 is a plan view showing the internal structure of a motor actuator device 90 according to the second embodiment of the present invention, and FIG. 11 shows the motor actuator device 90 at 11-11 in FIG. A developed longitudinal section is shown along a line.

In this motor actuator device 90, a connector portion 94 is integrally provided at the end portion of the substrate 92 located on the side of the gear 48. Unlike the above-described embodiment, the connector portion 94 has a fitting hole 96 that opens laterally (horizontally) from one end portion of the substrate 92.

On the other hand, the connect pin 98 has a middle portion bent substantially at a right angle and extending in the horizontal direction. A tip portion of the connect pin 98 bent in the horizontal direction corresponds to the connector portion 94, and projects from the fitting hole 96 in the horizontal direction.

The motor actuator device 90 is different from the above-described motor actuator device 10 only in the forming direction of the connector portion 94 provided on the substrate 92 (the opening direction of the fitting hole 96) and is different from the above-described motor actuator device 10. The functionality is exactly the same. Therefore, in the motor actuator device 90 as well, each part of the board 92, that is, the gear support part 18, the power supply terminal part 20, the terminal part 22, and the connector part 94 are integrally provided, and therefore, compared to the conventional case. The number of parts is greatly reduced, which reduces the cost and improves the assemblability. Further, by assembling each of the above-mentioned gears to the gear support portion 18, it becomes possible to configure this as a gear unit (unitization).

Further, the workability of replacing the potentiometer 74 is good, and it is possible to cope with other different dampers and the like by only changing the potentiometer 74, and the range of application is expanded.

Next, FIG. 12 shows an exploded perspective view of a motor actuator device 100 according to a third embodiment of the present invention, and FIG. 13 shows a third embodiment used for the motor actuator device 100. A perspective view of the substrate 102 according to FIG. 14 shows a plan view of the internal structure of the motor actuator device 100, and FIG. 15 shows a developed vertical sectional view of the motor actuator device 100 taken along line 15-15 in FIG. Has been done.

In the motor actuator device 100, the substrate 102 is arranged in a box-shaped housing case 12 having an open top. Similar to the substrate 14 of the motor actuator device 10 according to the first embodiment described above, the substrate 102 is integrally provided with the gear support portion 104, the power feeding terminal portion 106, the terminal portion 108, and the connector portion 110. The motor holding portion 112 and the element holding portion 114 are both integrally provided.

That is, the gear support portion 104 of the substrate 102 extends toward the bottom wall of the housing case 12, and the first support is provided between the gear support portion 104 and the bottom wall of the housing case 12. Gears 42 and 48 (shaft 46) similar to those of the embodiment are assembled. In the gear 42, the gear portion 42A and the gear portion 42B are integrally provided with the shaft portion, and the support shaft 30 is omitted. Further, the gear 32 and the gear 34 (the support shaft 26), the gear 36 and the gear 38 (the support shaft 26) are attached to the side of the gear support portion 104 between the bottom wall of the housing case 12 and the cover 80. There is.

In addition, a power supply terminal portion 106, a terminal portion 108, and a connector portion 110 are integrally provided at the end portion of the substrate 102 on the side of the gear support portion 104.

A pair of terminal grooves 116 are formed in the power feeding terminal portion 106. The pair of terminal grooves 116 are accommodated in the motor holding portion 112 described later and correspond to the pair of terminals 67 of the motor 60 similar to the first embodiment. The terminals 67 are fitted and electrically connected. Has been done. Further, a plurality (three in this embodiment) of connection holes 118 are formed in the terminal portion 108. This connection hole 118 also corresponds to the terminal 76 of the potentiometer 74 as in the first embodiment, and the terminal 76 is fitted and electrically connected. Further, a connector (not shown) is fitted in the connector section 110.

On the other hand, the motor holding portion 58 of the support plate 16 in the above-described first embodiment is provided at a portion located on the side of the gear supporting portion 104, the terminal portion 108 and the connector portion 110 and corresponding to the power feeding terminal portion 106. A similar motor holding portion 112 is formed. The motor 60 is accommodated in the motor holding portion 112, and the terminal 67 is fitted and held in the terminal groove 116 of the power supply terminal portion 106 and is electrically connected.

Further, on the upper surface of the gear support portion 104 on the side of the motor holding portion 112, the element holding portion of the support plate 16 in the above-described first embodiment is provided at a position facing the shaft 46 (gear 48). An element holding portion 114 similar to 70 is formed. A through hole 120 is formed in the element holding portion 114 coaxially with the shaft 46 (gear 48), and a potentiometer 74 is arranged therein.

As described above, on the substrate 102 of the motor actuator device 100, the motor holding portion 112 and the element holding portion 114, which correspond to the motor holding portion 58 and the element holding portion 70 of the support plate 16 in the above-described first embodiment, are provided. Are integrated together. That is, the motor actuator device 100 has a configuration in which the components corresponding to the support plate 16 are deleted while ensuring other functions.

Therefore, in the motor actuator device 100, the number of parts is further reduced as compared with the conventional one, the cost is reduced and the assembling property is also improved. Also, the workability of replacing the potentiometer 74 is good, and it is possible to cope with other different dampers and the like by only changing the potentiometer 74, and the range of application is expanded.

In this motor actuator device 100 as well, similarly to the second embodiment, the connector portion 110 may be opened laterally (horizontally) from one end of the substrate 102. ..

[0055]

[Effect of the device]

 As described above, the present invention has the following effects.

In the board according to the first aspect, the number of parts is greatly reduced compared to the conventional one, the cost is reduced, and since the parts mounting positions are all arranged on the board, positioning can be performed by assembling. The assembly is also improved. In addition, it can be unitized and its range of application is wide.

In the substrate according to the second aspect, the workability of replacing the rotational position detecting element is improved, and the range of application is expanded.

In the motor actuator device according to the third aspect, the number of parts is significantly reduced as compared with the conventional one, the cost is reduced, and the assembling property is improved. In addition, it is possible to make a unit by attaching multiple gears to the gear support part of the base plate. Furthermore, by simply changing the motor and rotational position detection element, it is possible to support dampers used in other different modes, and the range of application is wide.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a motor actuator device according to a first embodiment of the present invention.

FIG. 2 is a plan view showing the internal structure of the motor actuator device according to the first embodiment.

FIG. 3 is a developed vertical sectional view of the motor actuator device according to the first embodiment, which is developed along the line 3-3 in FIG.

FIG. 4 is a plan view of a substrate according to a first embodiment of the present invention used in a motor actuator device.

FIG. 5 is a front view of a substrate used in a motor actuator device according to a first embodiment of the present invention.

FIG. 6 is a rear view of the substrate according to the first embodiment of the present invention used in a motor actuator device.

FIG. 7 is a right side view of a substrate according to the first embodiment of the present invention used in a motor actuator device.

FIG. 8 is a left side view of a substrate according to a first embodiment of the present invention used in a motor actuator device.

FIG. 9 is a back view of a substrate according to a first embodiment of the present invention used in a motor actuator device.

FIG. 10 is a plan view showing an internal structure of a motor actuator device according to a second embodiment.

FIG. 11 is a developed vertical sectional view of the motor actuator device according to the second embodiment, which is developed along the line 11-11 in FIG. 10.

FIG. 12 is an exploded perspective view of a motor actuator device according to a third embodiment of the present invention.

FIG. 13 is a perspective view of a substrate used in a motor actuator device according to a third embodiment of the present invention.

FIG. 14 is a plan view showing an internal structure of a motor actuator device according to a third embodiment.

FIG. 15 is a developed vertical sectional view of the motor actuator device according to the third embodiment, which is developed along the line 15-15 in FIG.

FIG. 16 is a vertical cross-sectional view showing a switch unit used in a conventional motor actuator device.

FIG. 17 is an exploded sectional view showing the configuration of the switch unit shown in FIG.

[Explanation of symbols]

 10 Motor Actuator Device 14 Board 18 Gear Support 20 Power Feed Terminal 22 Terminal 24 Connector 32 Gear 34 Gear 36 Gear 38 Gear 42 Gear 48 Gear 60 Motor 74 Potentiometer (Element, Rotation Position Detection Element)

Claims (3)

[Scope of utility model registration request] 1. A gear support portion that is connected to a rotation shaft of a motor and supports a plurality of gears that reduce the rotational force of the motor and transmit the decelerated rotation force to an output shaft, and the motor is connected to supply power to the motor. A power feeding terminal, a terminal portion to which an element for controlling the motor is connected, and a connector portion for electrically connecting the power feeding terminal and the terminal portion in a predetermined circuit and electrically connecting to the outside. A board provided together. 2. An element connected to the terminal portion is a rotational position detecting element, and is mechanically connected to the output shaft in accordance with the connection to the terminal portion to detect a rotational position of the output shaft. The substrate according to claim 1, wherein: 3. A motor, a plurality of gears connected to a rotation shaft of the motor to reduce a rotational force of the motor and transmit the rotation force to the output shaft, and a rotation position of the output shaft connected to the output shaft to detect a rotational position of the output shaft. A rotational position detecting element, a gear support portion supporting the plurality of gears, a power supply terminal for connecting the motor to supply power to the motor,
A terminal portion to which the rotational position detecting element is connected, and a connector portion that electrically connects the power supply terminal and the terminal portion with a predetermined circuit and electrically connects the outside are integrally provided. And a motor-actuator device including the substrate.