JP4290377B2 - Structure of electric motor drive control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to the structure of a drive control device for an electric motor.
[0002]
[Prior art]
Conventionally, as a drive control device for this type of electric motor, for example, there is one as shown in FIG.
The drive control device 101 includes a dielectric substrate on which a plurality of electronic components constituting a drive circuit that drives the electric motor 102 or a control circuit that controls the electric motor is mounted, that is, a mounting substrate type having a mounting substrate. a drive controller body 103 which is not, and consisted it accommodates drive control unit outer box 104. the size of the drive control device 101 is equal to or higher as compared with the electric motor 102. The drive control device 101 and the electric motor 102 are usually connected to each other by a lead wire, a cable 105, or the like.
[0003]
When the output part of the drive control device 101 has a terminal structure, the lead wire of the electric motor 102 is connected by a terminal screw. When the output part of the drive control device 101 has a connector structure, the cable 105 of the electric motor 102 is A pair of connectors (plug and receptacle) 106 are connected.
[0004]
[Problems to be solved by the invention]
However, such a conventional drive control device 101 has a large outer dimension, and it is necessary to connect the drive control device 101 and the electric motor 102 using a lead wire, a cable 105, or the like. As a result, there is a problem that a considerable space is required.
[0005]
On the other hand, control motors such as stepping motors and servo motors that require a control device and a drive device are often used as a power source inside the driven device . Therefore, it is ideal that these electric motor drive control devices are used by being incorporated in the control system of the driven device. In other words, the usage is such that it is mounted on the circuit board of the driven device itself.
[0006]
However, in such a drive control device 101, typically, the drive control device 101 that is an independent apparatus for only driving the motor 102, are made of fixed idea, said some Convenience when incorporated in the apparatus was not considered. Accordingly, when incorporated in any device, the drive control device 101 cannot be mounted on the circuit board of the driven device itself, and there is a problem in that it is inconvenient.
[0007]
The present invention has been made in view of the above points, and an object of the present invention is to solve the problems described above, and to provide a structure of a drive control device for an electric motor that occupies a small space when incorporated in a driven device. There is.
[0008]
Another object of the present invention is to solve the above-mentioned problems and to provide a structure of a drive control device for an electric motor that is easy to use in consideration of convenience when incorporated in a driven device.
[0009]
[Means for Solving the Problems]
The configuration of the present invention for achieving the above object is as follows in the structure of the drive control device for an electric motor including a plurality of electronic components constituting an electronic circuit.
[0010]
A plurality of electronic components constituting the electronic circuit are soldered to both sides of a dielectric substrate disposed at a central position in the drive control device, and input / output is performed on the electronic circuit via a relay member. Used to connect the pin group and to project the input / output pin group from the drive control device and to be mounted on the drive control device mounting board for soldering to the mounting board of the drive control device. The positioning mechanism is a structure of a drive control device for an electric motor provided in an outer box of the drive control device.
[0011]
Further, using a metal material on the box of the drive control device, in the electronic component disposed on both surfaces of the dielectric substrate in the drive control device, the electronic component that generates heat, the outer box It is the structure of the drive control apparatus of the electric motor which makes it closely_contact | adhere to the metal material of this, and discharge | releases the heat | fever of the said heat-generating electronic component to the metal material of the said outer box.
[0012]
Since the structure of the drive control device according to the present invention is configured as described above, the external dimensions are small, and when the drive control device is incorporated in a driven device, a small space is required.
[0013]
Since the structure of the present invention is configured as described above, the convenience when incorporated in a driven apparatus is considered.
[0014]
Also, the usability can be improved in the implementation.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of the invention will be described in detail with reference to the drawings.
[0016]
1 and 2 are diagrams showing an embodiment of the structure of a drive control apparatus 1 for an electric motor according to the present invention. FIG. 1 shows a mounting in which a drive control apparatus board 2 having electronic components attached on both sides is mounted. sectional view showing a structure of a drive control device 1 of the mold, FIG. 2, for explanation, when equipped with only the drive controller board 2 is a cross-sectional view showing the structure of the drive control device 1.
[0017]
In FIG. 1 and FIG. 2, in order to drive and control an electric motor (not shown), the drive control device 1 configured by an electronic circuit is mounted substantially vertically on a drive control device mounting board 10 made of a dielectric.
[0018]
Further, the drive control device substrate 2 made of a dielectric is suspended from a central position in the drive control device outer box 3 made of a metal material, and a plurality of electronic components 4a and 4b constituting the electronic circuit are provided on both side surfaces thereof. An input / output pin group 6 to which the electronic circuit is soldered and is soldered is projected from the drive control device outer box 3 to the drive control device mounting board 10 side via a relay member 5.
[0019]
Further, the drive control device outer box 3 of the drive control apparatus 1, the mounting surface side of the drive control device mounting board 10 has a plurality of drive control device positioning pin 7 is arranged.
[0020]
The drive control device 1 and the drive control device mounting board 10 are connected to the drive control device mounting board 10 according to the arrangement position of the input / output pin group 6 protruding from the drive control device 1. In addition, at least the same number of through holes 11 as the pin group 6 are formed through the same axis as the respective pins of the input / output pin group 6. Similarly, in order to insert the positioning pins 7 on the same axis as each of the positioning pins 7 in the drive control device mounting board 10 in accordance with the arrangement position of the positioning pins 7 of the drive control device 1, The same number of positioning through holes 12 as the pins 7 are provided.
[0021]
Wherein when attached to the drive control device 1 the drive control device mounting substrate 10, a through hole 11 for the pin group 6 of the drive control device mounting board 10, the said positioning through holes 12, the drive control device The input / output pin group 6 and the positioning pin 7 are respectively inserted, and the input / output pin group 6 is soldered and electrically connected to each land of the drive control device mounting board 10. .
[0022]
A resin material is usually used for the drive control device outer box 3. However, in the present embodiment, the drive control device outer box 3 is made of a metal material for almost the entire structure, and the electronic components mounted in the drive control device 1 can be radiated. Depending on the purpose of use, the use of a metal material in part or in whole is also preferable as a structure capable of radiating heat.
[0023]
Similarly, the plurality of electronic components constituting the electronic circuit on the space portions on both sides of the drive control device substrate 2 in the drive control device 1 or on both side surfaces of the drive control device substrate 2. 4a and 4b, in particular, when mounting electronic components 4c and 4d that generate heat, the electronic components 4c and 4c are separated from the drive control device substrate 2 if possible, and the metal material of the drive control device outer box 3 Adhere to.
[0024]
That is, the heat generating electronic components 4c and 4d are mounted on the metal plate surface 3a of the drive control device outer box 3 via an insulating material (for example, an insulating sheet) having good heat dissipation, and the heat generation requiring heat dissipation is performed. The heat radiating surfaces 4e and 4f of the electronic components 44c and 4d to be brought into close contact with the metal plate surface 3a of the drive control device outer box 3 respectively. This improves the heat dissipation of the heat generating electronic components 4c and 4d disposed on both sides of the drive control device board 2.
[0025]
Next, attachment of the drive control device 1 to the drive control device attachment board 10 will be described.
[0026]
FIG. 3 is a perspective view showing an arrangement relationship between the drive control device 1 and the drive control device mounting board 10. In FIG. 3, the input / output pin group 6 for the signal to the drive control device 1 is set to a number more than that which can secure the number of signals necessary for driving or controlling an electric motor (not shown) for soldering. The through hole 11 of the drive control device mounting substrate 10 into which each pin of the working pin group 6 is inserted has an inner diameter slightly larger than the outer diameter of each pin of the pin group 6, and the pin group 6 A land is provided so that each pin can be easily inserted and shaped and can be easily soldered.
[0027]
The outer diameter of the drive control device positioning pin 7 is slightly smaller than the inner diameter of the drive control device positioning through hole 12 of the drive control device mounting board 10 so that the arrangement position thereof is the same arrangement position. Has been. Based on the positioning pins 7 provided in the drive control device outer box 3, the input / output signals are combined with the input / output pin group 6 and coupled to the drive control device mounting board 10. The drive control device 1 can be securely fixed to the mounting substrate 10 and secured to the external vibration, etc., rather than being fixed to the drive control device mounting substrate 10 with only the pin group 6. Can do.
[0028]
As described above, the board mounted drive control device 1 and the drive control device mounting board 10 are connected to the input / output pin group 6 provided on the relay member 5 disposed on the drive control device outer case 3 side. By soldering to the through hole 11 provided in the drive control device mounting board 10, it can be firmly fixed to each other. Further, the board-mounted drive control device 1 has an outer box structure, and positioning pins 7 are provided on the drive control device outer box 3, thereby reducing the size of the board-mounted drive control device 1 and the drive control device mounting board. With positioning to 10, they are securely fixed to each other.
[0029]
Next, FIG. 4A shows the drive control device outer box 3 of the drive control device substrate 2 in which the plurality of electronic components 4a and 4b are disposed (the plurality of electronic components 4a are disposed on the upper surface) . FIG. 4B is an enlarged view of a portion A in FIG. 4A, and FIG. 4C is a cross-sectional view taken along the line cc in FIG. 4B.
[0030]
4 (a) to 4 (c), a substrate fixing portion 3b made of a resin material is formed in a part of the outer box 3 of the drive control device , and the plurality of electronic components 4a, 4b are formed on the substrate fixing portion 3b. When the drive control device substrate 2 mounted with 4b is arranged and fixed, one end of the drive control device substrate 2 is engaged and fixed by the engaging portion 3c of the substrate fixing portion 3b. At the same time, the board fixing portion 3b, to accommodate the mounting height H of the main electronic components 4g disposed on the drive controller board 2, the cross-section to the plane of the drive controller board 2 obtuse An inclined surface 3d is formed on the side of the engaging portion 3c so as to be a simple inclined surface. And it is set as the structure which can adjust the attachment height H at the time of attachment of this main electronic component 4g by contact with this inclined surface 3d and the lower end part of the said main electronic component 4g.
[0031]
FIG. 5A shows a method of mounting the main electronic component 4h in which a plurality of connection leads are arranged substantially linearly on the main electronic component 4h arranged on one surface of the drive control device substrate 2. FIG. 5B is an enlarged view of a portion A showing the connection lead 21 at the rightmost end of FIG. FIG. 6 is a perspective view when the main electronic component 4h is mounted on one surface of the drive control device substrate 2 shown in FIG.
[0032]
5 (a) and 5 (b), when mounting the main electronic component 4h on the drive control device board 2, a plurality of the main electronic components 4h are arranged substantially linearly, In the connection lead group 20 in which two places are bent at approximately 90 degrees, one connection lead, for example, one connection lead 21 and 22 arranged at both ends is formed longer than the tip of the other connection lead. To do. The bent portion formed rather the long positioning holes 2a formed in the drive controller board 2, so that it can be inserted into 2a, in the direction (the substrate side direction) passing through the drive controller board 2, The electronic component 4h is formed in a shape that allows positioning.
[0033]
Thus, when the main electronic component 4h is disposed on the drive control device substrate 2, it can be positioned by the respective connection leads 21 and 22 disposed at both ends.
As a result, each of the connection leads 21 and 22 arranged at both ends is inserted into the positioning holes 2a and 2a and penetrates to the back surface of the drive control device board 2, so that the main Mounting and positioning of the electronic component 4h on the drive control device substrate 2 can be performed reliably and easily.
[0034]
As for the other connection lead 20, as shown in FIGS. 6 to 8, without penetrating the drive controller board 2, to be soldered to the strip on the drive controller board 2, the drive control device There is no need to secure a space on the back surface of the substrate 2, and the area of the drive control device substrate 2 can be used effectively.
[0035]
Of the plurality of connection leads 20 arranged substantially linearly on the main electronic component 4h, the connection leads 21 and 22 arranged at both ends are used as the positioning connection leads. Not only the connection leads 21 and 22 to be arranged, but other connection leads in the vicinity of the both end portions may be used.
[0036]
Next, FIG. 9 is a development diagram showing an example of a structure of a drive control unit outer box 31 and the drive controller body 8 constituting the drive control apparatus 1, the outer box and the drive control device outer box 30 The body 31, the upper surface member 32, and the lower surface member 33 have a three-piece structure and are assembled with the drive control device body 8 including the drive control device board 2 on which the plurality of electronic components 4 a and 4 b are disposed. .
[0037]
Figure 10 is a development diagram showing another example of the structure of a drive control apparatus body 8 and the drive control device outer box 34 constituting the drive control apparatus 1, the drive control device outer box 34 outside box body 35 and an upper and lower surface body 36, each of which is assembled with the drive control device body 8 including the drive control device substrate 2 on which the plurality of electronic components 4a and 4b are disposed.
[0038]
Figure 11 is a development diagram showing still another example of the structure of a drive control apparatus body 8 and the drive control device outer box 40 constituting the drive control apparatus 1, the outer box and the drive control unit outer box 40 A structure comprising three bodies of a body 37, an upper surface member 38 and a lower surface member 39, and the drive control device main body 8 including the drive control device substrate 2 on which the plurality of electronic components 4a and 4b are arranged. is there.
[0040]
【The invention's effect】
As is clear from the above description, according to the structure of the drive control device for an electric motor of the present invention, a plurality of electrons constituting the electronic circuit are formed on both sides of the dielectric substrate disposed at the central position in the device. As the parts are soldered, the electronic circuit is connected to the input / output pin group via the relay member, and the input / output pin group protrudes from the device for soldering to the mounting board of the drive control device. In addition, since the positioning mechanism used when mounting on the mounting board of the drive control device is provided in the outer box of the drive control device, the space occupied when it is incorporated into the device on the user side is reduced. In addition, the convenience when incorporated in the device on the user side is taken into account, and also in the mounting, there is an excellent effect that the usability is good.
[0041]
In addition, the electronic component that generates heat among the plurality of electronic components that are respectively disposed on both sides of the dielectric substrate in the drive control device or are disposed on both surfaces of the dielectric substrate. Is closely attached to the metal material of the outer box, so that heat dissipation from the electronic components that generate heat in the drive control device mounted on the substrate can be improved, and the device mounted on the substrate can be downsized. In addition, there is also an excellent effect that the durability is improved with respect to the environment of the apparatus during operation, particularly the environment of temperature.
[Brief description of the drawings]
[1] a diagram showing an embodiment of the structure of a motor drive control apparatus of the present invention, mountable mounted a drive controller board mounted a plurality of electronic components on both sides of the drive control device It is sectional drawing which shows a structure.
FIG. 2 is a cross-sectional view showing the structure of the drive control device when only the drive control device substrate is mounted for explanation.
FIG. 3 is a perspective view showing an arrangement relationship between the drive control device and a drive control device mounting board.
4A is a perspective view showing a state in which the drive control device substrate 2 on which a plurality of electronic components 4a and 4b are arranged is mounted on the drive control device outer case 3, FIG. ) Is an enlarged view of a portion A in FIG. 4A, and FIG. 4C is a cross-sectional view taken along the line cc in FIG. 4B.
FIG. 5A is a main electronic component of the electronic component disposed on one surface of the drive control device board, and the main electronic component having a plurality of connection leads arranged substantially linearly is shown. FIG. 5B is a perspective view showing a mounting method, and FIG. 5B is an enlarged view of a part A showing the connection lead at the rightmost end in FIG.
FIG. 6 is a perspective view when the main electronic component is mounted on one surface of the drive control device substrate shown in FIG.
7 is a side view of the drive control device board on which the electronic component shown in FIG. 6 is mounted, as viewed from the lower left to the upper right. FIG.
8 is an enlarged cross-sectional view of a left end portion of a side surface of the drive control device board on which the electronic component shown in FIG. 6 is mounted, as viewed from the lower right to the upper left.
FIG. 9 is an exploded configuration diagram showing a structure of a drive control device main body and a drive control device outer case constituting the drive control device 1;
10 is a development diagram showing another example of the structure of a drive control device body constituting the drive control apparatus and drive control unit outer box.
11 is a development diagram showing still another example of the structure of a drive control device body constituting the drive control apparatus and drive control unit outer box.
FIG. 12 is a perspective view showing a connection between a conventional drive control device and an electric motor.
[Explanation of symbols]
1 drive control device 2 drive control device substrate 2a positioning holes 3, 30, 34, 40 drive control device outer box 3a metal plate surfaces 4a, 4b multiple electronic components 4c, 4d heat generating electronic components 4e, 4f heat dissipation surface 4g, 4h Main electronic component 5 Relay member 6 Input / output pin group 7 Drive control device positioning pin 8 Drive control device main body 10 Drive control device mounting substrate 11 Through hole 12 Positioning through hole 20 Connection lead group 21 Connection lead 22 at the right end The leftmost connection lead

Claims (2)

In the structure of a drive control device for an electric motor, comprising a plurality of electronic components constituting an electronic circuit,
A plurality of electronic components 4a and 4b constituting the electronic circuit are soldered to both sides of a dielectric substrate disposed at a central position in the drive control device, and a relay member 5 is interposed in the electronic circuit. connect the input-output pin group 6 Te, the input-output pin group 6 to the mounting substrate 10 of the drive control device, for soldering, to protrude from the device, and the mounting substrate 10 of the drive control device A structure of a drive control device for an electric motor, wherein a positioning mechanism used for mounting is provided on an outer box of the drive control device.  In the drive control device, an outer box is formed of a metal material, and among the electronic components disposed on both surfaces of the dielectric substrate in the drive control device, the electronic component that generates heat is replaced with a metal of the outer box. The structure of the drive control device for an electric motor according to claim 1, wherein the structure is closely attached to a material, and heat of the heat generating electronic component is released to a metal material of the outer box.

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