JP2017033875A - Electromechanical device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromechanical device capable of suppressing displacement of a terminal in a direction of rotation.SOLUTION: In the electromechanical device, an actuator and an electronic device that controls drive of the actuator are integrated and a lead wire of the actuator and a circuit board of the electronic device are electrically connected. The electromechanical device comprises a connection terminal which has elasticity and electrically connects the circuit board and the lead wire. The circuit board includes a hole into which one end of the connection terminal is inserted and electrically connected, and separately from the hole, a penetration part which is formed by penetrating a part of the circuit board and supports the connection terminal. Regarding the connection terminal, one end of the connection terminal is inserted into the hole orthogonally with the circuit board, the connection terminal elastically holds the circuit board while being in contact with wall surfaces of the hole and the penetration part, and another end opposite to the one end of the connection terminal inserted into the hole includes a welding part for fixing the lead wire in the state where the lead wire is welded.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electromechanical integrated device in which an actuator and an electronic device that controls driving of the actuator are integrated, and a lead wire of the actuator and a circuit board of the electronic device are electrically connected.

  Patent Document 1 discloses an electromechanical integrated device in which an actuator and an electronic device that controls driving of the actuator are integrated, and a lead wire of the actuator and a circuit board of the electronic device are electrically connected.

International Publication No. 2008/102482

  In the electromechanical integrated device described above, the male terminal (actuator lead), which is a motor terminal, and the circuit board are electrically connected by an intermediate conductor (terminal). One end of the intermediate conductor is inserted into a through hole of the circuit board and soldered.

  As an example of not using solder, it is conceivable to employ a press-fit terminal instead of the above-described intermediate conductor (terminal). The press-fit terminal is a pair of beam portions that are press-fitted into the hole of the circuit board, the upper and lower ends are connected so as to form a space therebetween, and are elastically deformable in opposite directions. At least one set. In the press-fit state, the pair of beam portions are elastically deformed in a direction approaching each other, and the press-fit portions are held on the circuit board by a reaction force due to the deformation. Therefore, the terminal and the circuit board can be electrically connected without using solder. Moreover, the terminal shape can be simplified by welding the press-fit terminal and the conductor of the actuator.

  However, in any form in which the terminal is fixed to the substrate using solder, and in the form in which the press-fit terminal is fixed to the substrate, the load when welding the terminal and the conductor wire of the actuator, or the electromechanical integrated device itself In some cases, a force acts in a direction in which the terminal is displaced (that is, swiveled) around the hole due to vibration transmitted to. In the form fixed using solder, there is a possibility that the solder may crack and electrical connection cannot be maintained. Moreover, in the form fixed by press fit, there exists a possibility that the contact with a circuit board in a press-fit part may slide, and oxidation of a contact surface may advance.

  Therefore, in view of the above problems, an object of the present invention is to provide an electromechanical integrated device that can suppress displacement in the rotation direction of a terminal.

  The invention disclosed herein employs the following technical means to achieve the above object. Note that the reference numerals in parentheses described in the claims and in this section indicate a corresponding relationship with specific means described in the embodiments described later as one aspect, and limit the technical scope of the invention. Not what you want.

  In order to achieve the above object, according to the present invention, the actuator (10, 20) and the electronic device (30) for controlling the driving of the actuator are integrated, and the conductor wire (50) of the actuator and the circuit board ( 31) is an electromechanical integrated device electrically connected to the electromechanical device, and includes a connection terminal (60) that has elasticity and electrically connects the circuit board and the conductive wire, and one end of the connection terminal is inserted into the circuit board. In addition to the holes (35) that are electrically connected to each other, apart from the holes, a part of the circuit board is formed so as to penetrate therethrough and have through portions (36, 39) that support the connection terminals. The connection terminal is inserted into the hole in the connection terminal while one end of the connection terminal is inserted into the hole perpendicular to the circuit board and elastically grips the circuit board while being in contact with the wall surface of the hole and the through-hole. The other end opposite to the one end It is characterized by having a weld part for fixing by welding state.

  According to this, the connection terminal holds the circuit board by its own elasticity. In other words, the connection terminal is fixed to the substrate by the two points of the hole and the through portion. For this reason, even if stress is applied to the end (other end) of the connection terminal located on the opposite side to the hole with respect to the through portion due to vibration or bias during welding, the displacement of the connection terminal in the rotational direction is suppressed. can do. As a result, it can suppress that stress propagates directly to the edge part (one end) of the connection terminal which touches a hole.

  Furthermore, since the penetration part is provided through a part of the circuit board, the connection terminal can be fixed at two points without adding a separate component.

It is sectional drawing which shows schematic structure of the electric compressor which concerns on 1st Embodiment. It is a perspective view which shows the detailed structure of a circuit board and a connection terminal. It is a perspective view which shows the detailed structure of a circuit board and a connection terminal. It is sectional drawing which shows the detailed structure of the connecting terminal which concerns on 2nd Embodiment. It is a perspective view which shows the detailed structure of the circuit board and connection terminal which concern on 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same reference numerals are given to the same or equivalent parts. Further, the insertion direction of the connection terminal with respect to the circuit board is defined as the Z direction, and the direction along the straight line connecting the hole and the penetrating portion is orthogonal to the Z direction. A direction perpendicular to both the Z direction and the Y direction is referred to as a Y direction.

(First embodiment)
Initially, with reference to FIG. 1 and FIG. 2, schematic structure of the electromechanical integrated apparatus which concerns on this embodiment is demonstrated.

  First, a schematic configuration of the electric compressor 100 will be described with reference to FIG. The electric compressor 100 is disclosed in Japanese Patent Application Laid-Open No. 2008-82279 except that the connection terminal 60 electrically connects the airtight terminal 50 of the motor 10 and the circuit board 31 constituting the electronic device 30. The configuration is basically the same as that of an electric compressor. Therefore, the description of JP 2008-82279 A can be cited.

  As shown in FIG. 1, the electric compressor 100 includes a motor 10, a compressor 20, and an electronic device 30. The electric compressor 100 corresponds to an electromechanical integrated device. The motor 10 and the compressor 20 correspond to an actuator.

  The motor 10 (rotary electric machine) rotates the compressor 20 via the rotating shaft 12. The motor 10 includes a motor housing 11, a rotating shaft 12, a rotor 13, a stator core 14, and a stator coil 15.

  The motor housing 11 is formed in a substantially cylindrical shape centering on the rotary shaft 12 using a metal having excellent thermal conductivity, for example, iron or aluminum. A refrigerant suction port 11 a is provided on one end side of the motor housing 11 in the axial direction (X direction) of the rotary shaft 12. A refrigerant discharge port 11 b is provided on the other end side of the motor housing 11. A mounting wall 16 in which the electronic device 30 is disposed is provided as a part of the outer wall of the motor housing 11 in a direction orthogonal to the axial direction. In the present embodiment, as an example, the mounting wall 16 includes a pedestal 16a for arranging a circuit board 31 described later.

  The rotating shaft 12 is disposed in the motor housing 11 and is rotatably supported by a bearing 12a and another bearing (not shown). The rotating shaft 12 transmits the rotational driving force received from the rotor 13 to the compressor 20. The bearing 12 a and other bearings are supported by the motor housing 11.

  The rotor 13 is made of a permanent magnet. The rotor 13 is formed in a cylindrical shape having a hollow portion, and the rotary shaft 12 is press-fitted into the hollow portion, and the rotor 13 and the rotary shaft 12 are fixed. The rotor 13 rotates together with the rotating shaft 12 based on the rotating magnetic field generated by the stator core 14.

  The stator core 14 is disposed radially outward with respect to the rotor 13 (rotating shaft 12). The stator core 14 is formed in a substantially annular shape in the motor housing 11. The stator core 14 is made of a magnetic material. The stator core 14 is supported by the inner peripheral surface of the motor housing 11. The stator coil 15 is wound around the stator core 14.

  In the motor 10, a refrigerant flow path 11 d is formed between the mounting wall 16 of the motor housing 11 and the stator core 14. The refrigerant flow path 11 d is a passage through which a refrigerant (fluid) flows in order to cool the electronic device 30. The refrigerant flows from the refrigerant suction port 11a toward the refrigerant discharge port 11b.

  As the compressor 20, for example, a scroll type or rotary type compressor can be adopted. The compressor 20 is swung by the rotational driving force from the rotating shaft 12 of the motor 10 and sucks, compresses, and discharges the refrigerant.

  The electronic device 30 controls driving of the motor 10. That is, the electronic device 30 controls the driving of the actuator composed of the motor 10 and the compressor 20. The electronic device 30 includes a circuit board 31 and a cover 32. The circuit formed on the circuit board 31 includes an inverter that drives the motor 10 by supplying power to the stator coil 15 of the motor 10.

  The circuit board 31 includes a wiring board 33 and a plurality of electronic components 34. In FIG. 1, one of the plurality of electronic components 34 is illustrated. The wiring board 33 is formed by arranging wiring on an electrically insulating base material such as resin. The wiring board 33 is also referred to as a printed board. The electronic component 34 is mounted on a surface (hereinafter referred to as an upper surface) opposite to a mounting surface (hereinafter referred to as a lower surface) of the wiring board 33 on the base 16a. Among the electronic components 34, a component having a particularly large calorific value can be radiated to the mounting wall 16 (base 16 a) via a thermal via (not shown) formed on the wiring board 33. A connection terminal 60 described later is electrically connected to the circuit board 31, and the detailed structure will be described later.

  Note that a heat conducting member such as a heat radiating gel may be interposed between the mounting wall 16 and the wiring board 33 so that the heat of the electronic component 34 is released to the mounting wall 16 through the heat conducting member. Further, a heat conducting member may be interposed between the electronic component 34 mounted on the upper surface and the cover 32 so that the heat of the electronic component 34 is released to the cover 32. The mounting position of the electronic component 34 is not limited to the upper surface of the wiring board 33. At least some of the plurality of electronic components 34 may be mounted on the lower surface of the wiring board 33. Furthermore, the electronic component 34 having a large calorific value may be disposed on the mounting wall 16. For example, the switching elements constituting the inverter may be arranged on the mounting wall 16. It is advantageous in terms of heat radiation to dispose a part with a large calorific value near the mounting wall 16.

  The electric compressor 100 includes a cluster block 40, an airtight terminal 50, and a connection terminal 60 in order to electrically connect the stator coil 15 and the circuit board 31 (inverter).

  The cluster block 40 constitutes a connector on the stator coil 15 side. The cluster block 40 is connected to the end of the stator coil 15. The cluster block 40 is disposed between the stator core 14 and the compressor 20 in the axial direction, that is, the X direction, together with the airtight terminal 50.

  The airtight terminal 50 is fitted in the opening 17 of the motor housing 11 (mounting wall 16). The opening 17 passes through the mounting wall 16 of the motor housing 11, and the airtight terminal 50 closes the opening 17. The airtight terminal 50 is also referred to as a sealed terminal. By adopting the airtight terminal 50, the cooling performance of the inverter and the pressure strength of the motor housing 11 can be realized simultaneously.

  The hermetic terminal 50 has three terminal portions 50 a that penetrate the inside and the outside of the motor housing 11. The terminal portion 50a is made of a metal as a material, for example, and has a substantially circular cross section. The terminal portion 50a is bent into a predetermined shape and has an end portion extending in a Y direction to be described later. The three terminal portions 50 a correspond to the three phases of the motor 10. In FIG. 1, only one terminal portion 50a is shown. The three terminal portions 50a are arranged side by side on the back side (Y direction) in FIG. One end sides of the three terminal portions 50a are connected to the cluster block 40, respectively. The other end sides of the terminal portions 50a are welded to the corresponding connection terminals 60, respectively. In FIG. 1, only one connection terminal 60 is shown. The airtight terminal 50 (terminal portion 50a) corresponds to the conductor of the actuator.

  The cover 32 is formed so as to cover the circuit board 31 using a metal as a material. The cover 32 is fixed to the motor housing 11 by a fixing method such as fastening. A circuit board 31 is accommodated in a space formed by the cover 32 and the motor housing 11 (mounting wall 16).

  The connection terminal 60 electrically connects (relays) the airtight terminal 50 (terminal portion 50a) and the circuit formed on the circuit board 31 of the electronic device 30. The connection terminal 60 is formed using an elastic metal as a base material. For example, a metal such as copper or copper alloy is used as a base material. On the surface of the base material, a plating film made of nickel or the like is appropriately formed. The connection terminal 60 is formed by punching a metal plate into a predetermined shape and bending it.

  Next, based on FIG. 2, the connection terminal 60 and the connection structure by the connection terminal 60 are demonstrated in detail. In FIG. 2, only the connection terminal 60 for one phase is shown for convenience.

  As shown in FIG. 2, the circuit board 31 (wiring board 33) has a hole 35 into which the connection terminal 60 is inserted. The circuit board 31 is formed with three holes 35 corresponding to the terminal portions 50a for three phases. Since these are equivalent to each other, one of them is shown in FIG. Yes. As shown in FIG. 2, the hole 35 is formed along the thickness direction of the circuit board 31, that is, the Z direction. The hole 35 penetrates over the one surface 33a of the wiring board 33 and the back surface 33b opposite to the one surface 33a. A conductive through hole (not shown) is formed in the wall surface of the hole 35. The conduction through hole is formed by plating, for example.

  Further, the circuit board 31 has a notch 36 on one side of the outer edge of the circuit board 31 separately from the hole 35. The notch 36 penetrates over the upper surface 33a of the wiring board 33 and the lower surface 33b opposite to the one surface 33a, like the hole portion 35. That is, the notch 36 corresponds to the through portion described in the claims. One end of the connection terminal 60 is inserted into the hole 35, and a part extending from the one end contacts and is fixed to the wall surface of the notch 36. The wall surface of the notch 36 is in a state where a conductive member such as a wiring is not exposed, and electrical insulation between the wiring board 33 and the connection terminal 60 is maintained. The direction along the straight line connecting the hole 35 and the notch 36 is the X direction, and the direction orthogonal to the XZ plane is the Y direction.

  As shown in FIG. 2, the connection terminal 60 corresponding to the three-phase terminal portion 50a includes an orthogonal portion 61, a first parallel portion 62 (simply referred to as a parallel portion in the claims), and a first oblique portion 63 (patent). In the claims, it has a second oblique portion 64, a second parallel portion 65, and a third parallel portion 66. The three connection terminals 60 are arranged side by side in the Y direction.

  The orthogonal part 61 is inserted into the hole 35 so as to be orthogonal to the circuit board 31. In FIG. 2, since the circuit board 31 is disposed along the XY plane, the orthogonal portion 61 is disposed extending in the Z direction. The connection terminal 60 in the present embodiment is electrically connected to the conduction through hole provided in the hole 35 at the orthogonal portion 61 via the solder 37.

  The first parallel portion 62 is formed to extend in the X direction from one end of the orthogonal portion 61 on the upper surface 33a side. That is, the connection terminal 60 is bent in the X direction after extending from the hole portion 35 in the Z direction. That is, the angle formed by the orthogonal part 61 and the first parallel part 62 intersects at approximately 90 degrees. Note that the length in the X direction of the first parallel portion 62 is shorter than the distance between the hole 35 and the notch 36.

  The first inclined portion 63 is formed to extend from one end of the first parallel portion 62 toward the notch 36. That is, the connection terminal 60 bends at one end of the first parallel portion 62 that is not continuous with the orthogonal portion 61 and extends toward the notch 36. And it is in contact with the wall surface of the notch 36.

  As described above, on the upper surface 33 a side of the circuit board 31, the connection terminal 60 is bent at two locations, that is, a bend from the orthogonal portion 61 to the first parallel portion 62 and a bend from the first parallel portion 62 to the first oblique portion 63. It has the bent part. These bent portions correspond to substrate-side bent portions described in the claims.

  The second oblique portion 64 is continuous with the first oblique portion 63 and extends from the notch 36 in the same direction as the extending direction of the first oblique portion 63. That is, the first oblique portion 63 and the second oblique portion 64 continuously extend linearly.

  The second parallel portion 65 is formed to extend from one end of the second oblique portion 64 along the X direction. That is, the connection terminal 60 is bent at one end of the second inclined portion 64 that is not continuous with the first inclined portion 63 and extends in the X direction.

  The third parallel portion 66 is formed to extend from one end of the second parallel portion 65 along the Y direction. That is, the connection terminal 60 bends at a substantially right angle at one end of the second parallel portion 65 that is not continuous with the second oblique portion 64 and extends in the Y direction. The actuator terminal in this embodiment, that is, the terminal portion 50 a is formed to extend in the Y direction and is substantially parallel to the third parallel portion 66. The third parallel portion 66 and the terminal portion 50a are connected to each other at surfaces facing each other by welding. In other words, the third parallel part 66 is coupled to the terminal part 50a with the welded part 67 formed on one surface. In FIG. 2, for convenience, the third parallel portion 66 and the terminal portion 50a are illustrated as being separated from each other. However, in the actual electric compressor 100, the third parallel portion 66 and the terminal portion 50a are welded. It is electrically connected via the part 67. For the welding, a generally known method can be adopted, for example, spot welding can be adopted.

  As described above, on the lower surface 33b side of the circuit board 31, the connection terminal 60 is bent from the second oblique portion 64 to the second parallel portion 65 and bent from the second parallel portion 65 to the third parallel portion 66. It has two bent parts. These bent portions correspond to the conductor-side bent portions described in the claims.

  By the way, the connection terminal 60 has elasticity. For this reason, even if the bending stress is applied and deformed, the connection terminal 60 tries to maintain the bent state of the board side bent portion and the conductor side bent portion if the bending stress is within the elastic range. In the present embodiment, the connection terminal 60 having the board-side bent portion is inserted in the hole portion 35 and the notch 36 and is pushed in the Z direction from the upper surface 33a to the lower surface 33b, and is orthogonal in a state where bending stress is applied. The part 61 is fixed by the solder 37. In other words, the connection terminal 60 holds the circuit board 31 like a clip at two points of the hole 35 and the notch 36. That is, the orthogonal portion 61 is in contact with a part of the wall surface of the hole 35, and the first inclined portion 63 is fixed while being in contact with a part of the wall surface of the notch 36.

  Next, the effect of the electric compressor 100 according to the present embodiment, particularly the connection terminal 60 will be described.

  The connection terminal 60 is inserted through the hole 35 and the notch 36 and holds the circuit board 31 by elasticity. For this reason, the connection terminal 60 is fixed by two points of the hole 35 and the notch 36. Therefore, even when the connection terminal 60 receives a moment of force around the Z-axis during welding or vibration, it is possible to suppress the application of stress in the rotational direction directly to the connection point between the connection terminal 60 and the hole 35. be able to. Therefore, since the load on the solder 37 can be reduced and the occurrence of cracks can be suppressed, the connection reliability between the connection terminal 60 and the circuit board 31 can be improved.

  Further, since the third parallel portion 66 where the welded portion 67 is formed extends in the Y direction, the moment of force applied around the hole portion 35 during welding is proportional to the length of the third parallel portion 66. . When the circuit board 31 is viewed from the front in the Z direction, the distance from the connection point between the second parallel portion 65 and the third parallel portion 66 to the hole 35 is often longer than the length of the third parallel portion 66. If the third parallel part 66 extends in the Y direction as in the present embodiment, the stress during welding acts in the X direction, so that the connection terminal 60 extends from the second parallel part 65 to the third parallel part 66. The load on the solder 37 can be reduced as compared with the unbent configuration.

  Incidentally, as the connection terminal 60, as shown in FIG. 3, a bending method in which the first parallel part 62 and the second parallel part 65 do not exist can be employed. In the example of FIG. 3, it is bent at an acute angle while extending from the orthogonal portion 61 to the first oblique portion 63, and is bent at a substantially right angle while extending from the second oblique portion 64 to the third parallel portion 66. That is, the connection terminal 60 illustrated in FIG. 3 has one bent portion as the substrate-side bent portion and one bent portion as the conductor-side bent portion.

  On the other hand, the connection terminal 60 in the present embodiment has two bent portions as the substrate side bent portions, and has two bent portions as the conductive wire side bent portions. As the number of bent portions increases, the stress applied to the connection terminal 60 during welding or vibration can be absorbed as elastic energy.

  Further, since the connection terminal 60 in the present embodiment includes the first parallel portion 62, the physique in the Z direction can be made smaller than the connection terminal 60 illustrated in FIG. Therefore, the volume of the accommodation space of the circuit board 31 surrounded by the mounting wall 16 and the cover 32 can be reduced, and the physique of the entire electric compressor 100 can be reduced.

(Second Embodiment)
In the first embodiment, an example in which the circuit board 31 and the connection terminal 60 are electrically connected via the solder 37 has been described. However, a configuration in which the circuit board 31 and the connection terminal 60 are connected to the hole 35 by press fitting may be employed.

  As shown in FIG. 4, the connection terminal 70 includes an orthogonal part 71, a first horizontal part 72, and a first oblique part 73, similarly to the connection terminal 60 in the first embodiment. The second oblique portion, the second horizontal portion, and the third horizontal portion are not shown.

  And the orthogonal part 71 of the connection terminal 70 in this embodiment is branched to the beam part 75 by the space part 74. The beam portions 75 are formed in at least a pair so that the upper ends and the lower ends are connected to each other so as to form a space portion 74 in the opposing direction (alignment direction), that is, the X direction. In the present embodiment, the orthogonal portion 71 has a pair of beam portions 75. The pair of beam portions 75 are provided so as to be elastically deformable in the X direction.

  In the X direction, the length of the longest distance between the outer surfaces of the pair of beam portions 75, that is, the terminal width, is wider than the inner diameter of the hole portion 35 in a state before press-fitting. In the press-fitted state, the pair of beam portions 75 are elastically deformed in a direction approaching each other (X direction), and a reaction force due to the elastic deformation of the beam portions 75 acts on the wall surface of the hole portion 35 and thus the surface of the conduction through hole 38. As a result, the connection terminal 70 is held on the circuit board 31. That is, the connection terminal 70 is connected to the hole 35 by press fitting.

  The pair of beam portions 75 have a terminal width that gradually increases from the upper end toward the lower end, and a terminal width that gradually decreases from the middle toward the lower end. Of the beam portion 75, at least a part of the portion disposed in the hole portion 35 is a contact point with the conduction through hole 38.

  A distal end portion 76 is connected to the lower ends of the pair of beam portions 75. The distal end portion 76 is a portion closer to the distal end side of insertion into the hole portion 35 than the space portion 74. The distal end portion 76 extends from the lower end of the beam portion 75 in the press-fitting direction, that is, the Z direction. The width of the distal end portion 76, that is, the length in the X direction is narrower than the inner diameter of the hole portion 35.

  According to this, electrical connection can be realized only by inserting the connection terminal 70 into the hole 35 without using the solder 37 as in the first embodiment. That is, the soldering process by the solder 37 can be reduced.

  Further, in the configuration in which the space portion 74 and the beam portion 75 are not formed as in the first embodiment, the connection terminal 60 is biased to the position in the hole portion 35 of the orthogonal portion 61 when holding the circuit board 31 with elasticity. Will occur. That is, the center axis of the orthogonal part 61 and the axis of the hole part 35 are shifted. In such a state, the fillet formed by the solder 37 is not targeted with respect to the axis of the orthogonal portion 61. This can cause cracks because the stress is not evenly distributed when the stress is applied to the solder 37.

  On the other hand, in the connection terminal 70 according to the present embodiment, since the orthogonal part 71 is fixed to the hole 35 by press fitting, the central axis of the orthogonal part 61 and the axis of the hole 35 are substantially at the same position. The connection reliability between the connection terminal 70 and the circuit board 31 can be improved.

(Third embodiment)
In the first embodiment and the second embodiment, an example in which the through portion provided in the circuit board 31 separately from the hole 35 is the notch 36 has been described. On the other hand, the through portion in the present embodiment is a hole-like through hole 39 that penetrates the circuit board 31, as shown in FIG.

  The circuit board 31 has a through hole 39 in the circuit board 31 separately from the hole 35. The through hole 39 penetrates over the upper surface 33a of the wiring substrate 33 and the lower surface 33b opposite to the one surface 33a, like the hole portion 35. That is, the notch 36 corresponds to the through portion described in the claims. However, unlike the notch 36 in the first embodiment and the second embodiment, the through hole 39 is formed in a hole shape in a closed state in the XY plane, not in the outer edge of the circuit board 31. One end of the connection terminal 60 (or the connection terminal 70) is inserted into the hole 35, and a part extending from the one end contacts and is fixed to the wall surface of the through hole 39. The wall surface of the through hole 39 is in a state in which a conductive member such as a wiring is not exposed, and electrical insulation between the wiring substrate 33 and the connection terminals 60 and 70 is maintained.

  Even in the configuration in which the through hole 39 is formed instead of the notch 36 as in the present embodiment, the connection terminals 60 and 70 are fixed at two points on the circuit board 31, so the first embodiment or the second embodiment. The same effect as the form is produced.

(Other embodiments)
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  In each of the above-described embodiments, the example in which the terminal portion 50a faces the Y direction has been described, but this is an example, and the present invention is not limited to this example. That is, the direction in which the terminal portion 50a faces may be arbitrary. Since the connection terminals 60 and 70 are fixed to the circuit board 31 at two points while being sandwiched with elasticity, rotation around the Z direction can be suppressed even if the direction of the terminal portion 50a is arbitrary.

  Further, in each of the above-described embodiments, an example has been described in which one or two bent portions are provided as the substrate side bent portion, and one or two bent portions are provided as the conductive wire side bent portion. The number is arbitrary and is not limited to one or two places.

  Moreover, in each above-mentioned embodiment, although the example of the electric compressor 100 was shown as an electromechanical integrated apparatus, it is not limited to this. The electromechanical integrated device may be any device as long as the actuator and the electronic device that controls the driving of the actuator are integrated, and the lead wire of the actuator and the circuit board of the electronic device are electrically connected. For example, a configuration in which a motor (rotary electric machine) as an actuator and an electronic device that controls driving of the motor are integrated, that is, a configuration that does not include a target to be driven by the motor may be employed.

  Further, the press-fit structure of the connection terminal 70 exemplified in the second embodiment is not limited to the above example.

DESCRIPTION OF SYMBOLS 10 ... Motor, 11 ... Motor housing, 11a ... Refrigerant suction port, 11b ... Refrigerant discharge port, 11d ... Refrigerant flow path, 12 ... Rotating shaft, 12a ... Bearing, 13 ... Rotor, 14 ... Stator core, 15 ... Stator coil, 16 ... mounting wall, 16a ... pedestal, 17 ... opening, 20 ... compressor, 30 ... electronic device, 31 ... circuit board, 32 ... cover, 33 ... wiring board, 34 ... electronic component, 35 ... hole, 36 ... notch , 40 ... cluster block, 50 ... airtight terminal, 50a ... terminal part, 60 ... connection terminal, 61 ... orthogonal part, 62 ... first parallel part, 63 ... first oblique part, 64 ... second oblique part, 65 ... first 2 parallel parts, 66 ... third parallel part, 67 ... welded part, 100 ... electric compressor

Claims (9)

The actuators (10, 20) and the electronic device (30) for controlling the driving of the actuator are integrated, and the conductor wire (50) of the actuator and the circuit board (31) of the electronic device are electrically connected. An electromechanical integrated device,
It has elasticity and comprises a connection terminal (60) for electrically connecting the circuit board and the conducting wire,
The circuit board has a hole portion (35) into which one end of the connection terminal is inserted and electrically connected, and apart from the hole portion, a part of the circuit board is formed through, Having through portions (36, 39) for supporting the connection terminals;
The connection terminal has one end of the connection terminal inserted into the hole perpendicular to the circuit board and elastically grips the circuit board while being in contact with the wall surface of the hole and the through-hole,
The other end of the connection terminal opposite to the one inserted into the hole has a welded portion (67) for fixing the conductive wire in a welded state.   The connection terminal has a substrate-side bent portion bent at at least one position in a portion extending from the hole portion to the through-portion, and holds the circuit board by elasticity due to the bending in the substrate-side bent portion. The electromechanical integrated device according to claim 1, wherein   The connection terminal has an orthogonal part (61) extending from the hole in a direction orthogonal to the circuit board at a part extending from the hole to the through part, and parallel to the circuit board and the hole. The parallel part (62) along the direction from the through part to the penetrating part and the oblique part (63) extending from the end of the parallel part to the penetrating part are connected in this order to form a bent shape. The electromechanical integrated device according to claim 2. The connection terminal has a conductor-side bent portion that is bent at at least one place in a portion extending from the penetrating portion and reaching the weld portion,
The welded portion is formed to extend along a direction parallel to the circuit board and perpendicular to the direction from the hole portion toward the penetrating portion by bending at the lead wire side bent portion. Item 4. The electromechanical integrated device according to any one of Items 1 to 3. The connection terminal extends from the through portion and reaches the welded portion, a second oblique portion (64) extending from the through portion, and parallel to the circuit board and from an end portion of the second oblique portion. A second parallel portion (65) extending and extending from an end portion of the second parallel portion along a direction parallel to the circuit board and perpendicular to the direction from the hole portion toward the penetrating portion. A third parallel part (66),
5. The electro-mechanical integrated device according to claim 4, wherein the third parallel portion is electrically connected to the conductive wire extending in parallel with the third parallel portion via the welded portion.   The electromechanical integrated device according to any one of claims 1 to 5, wherein the penetrating portion is a notch (36) provided on an outer edge of the circuit board.   The electromechanical integrated device according to any one of claims 1 to 5, wherein the through portion is a hole-like through hole (39) penetrating the circuit board.   The electromechanical integrated device according to claim 1, wherein the connection terminal is electrically connected in a state of being soldered to the hole.   The electromechanical integrated device according to any one of claims 1 to 7, wherein the connection terminal is electrically connected to the hole while being fixed by press fitting.

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