Circuit connection device and rotating electrical machine device

Abstract

The circuit connection device includes: a connector having a connection terminal connected to the outside; a circuit board on which the electronic component is mounted and in which a terminal hole into which the connection terminal is press-fitted is formed; a substrate support member that supports the circuit substrate; and a fixing member that fixes the circuit board to the board support member. The circuit board includes: a mounting portion on which the electronic component is mounted; and a supported portion fixed to the substrate support member by a fixing member and supported by the substrate support member. The supported portion is disposed between the mounting portion and the terminal hole.

Description

Technical Field

[0001] The present disclosure relates to a circuit connection device and a rotating electric machine device. Background Art

[0002] Conventionally, a circuit connection device having a circuit substrate on which electronic components are mounted and a connector having connection terminals for external connection is used as a control unit of a rotating electrical machine device. For example, when a press-fit terminal is used as the connection terminal, the press-fit terminal is pressed into a terminal hole formed in the circuit substrate, so that the electrical connection between the circuit substrate and the connector can be ensured without soldering or the like. Prior art literature Patent Literature

[0003] Patent Document 1: International Publication No. 2021 / 161947 Summary of the invention Technical problem to be solved by the invention

[0004] When the connection terminal is pressed into the terminal hole, a pressing force is applied to the circuit substrate. In recent years, the number of connection terminals of the connector has increased, for example, due to the redundancy of the rotating electrical machine device. In this case, the pressing force applied to the circuit substrate when the connection terminal is pressed into the terminal hole will also increase. In the structure of Patent Document 1, there is a possibility that the circuit substrate will be strained due to the pressing force applied to the circuit substrate, and the electronic components mounted on the circuit substrate may be damaged.

[0005] Furthermore, Patent Document 1 discloses a structure in which a control unit includes a mother substrate on which electronic components are mounted and a sub-substrate to which connection terminals are connected. However, in this case, the number of components of the rotating electrical machine device increases.

[0006] The present disclosure is made to solve the above-mentioned technical problems, and its purpose is to provide a circuit connection device and a rotating electric machine device that can suppress the increase in the number of components and suppress the strain of the circuit substrate, thereby preventing damage to electronic components mounted on the circuit substrate. Technical solutions adopted to solve technical problems

[0007] The circuit connection device disclosed in the present invention includes: a connector having a connection terminal connected to the outside; a circuit substrate, the circuit substrate is for mounting electronic components and is formed with terminal holes for pressing the connection terminals; a substrate supporting member for supporting the circuit substrate; and a fixing member for fixing the circuit substrate to the substrate supporting member, the circuit substrate has: a mounting portion for mounting the electronic components; and a supported portion fixed to the substrate supporting member by the fixing member and supported by the substrate supporting member, the supported portion being arranged between the mounting portion and the terminal hole.

[0008] The rotating electric machine device of the present disclosure includes a rotating electric machine and the circuit connection device for controlling the rotating electric machine. Effects of the Invention

[0009] According to the present disclosure, it is possible to provide a circuit connection device and a rotating electrical machine device that can suppress an increase in the number of components and suppress strain on a circuit board, thereby preventing damage to electronic components mounted on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic cross-sectional view of the rotating electrical machine device according to the first embodiment. Figure 2 It is a perspective view of the circuit connection device according to the first embodiment. Figure 3A This is a perspective view of the circuit board according to the first embodiment. Figure 3B This is a perspective view of the circuit board according to the first embodiment. Figure 4 This is a perspective view of the connector according to the first embodiment. Figure 5 This is a perspective view of the substrate supporting member according to the first embodiment. Figure 6 This is a perspective view of a circuit board and a board supporting member according to the first embodiment. Fig. 7A It is a diagram showing a schematic configuration of a circuit connecting device according to the first embodiment. Figure 7B It is a diagram showing a schematic configuration of a circuit connecting device according to the first embodiment. Fig. 8A This is a diagram showing a schematic configuration of a circuit connecting device according to a modified example of the first embodiment. Figure 8B This is a diagram showing a schematic configuration of a circuit connecting device according to a modified example of the first embodiment. Fig.9A This is a diagram showing a schematic configuration of a circuit connecting device according to another modified example of the first embodiment. Fig. 9B This is a diagram showing a schematic configuration of a circuit connecting device according to another modified example of the first embodiment. Fig.10 It is a perspective view of a circuit connecting device according to a second embodiment. Fig.11 It is a perspective view of a circuit board and a board supporting member according to a second embodiment. Fig. 12A It is a diagram showing a schematic configuration of a circuit connecting device according to a second embodiment. Fig. 12BIt is a diagram showing a schematic configuration of a circuit connecting device according to a second embodiment. Fig.13A It is a diagram showing a schematic configuration of a circuit connecting device according to a modified example of the second embodiment. Fig. 13B It is a diagram showing a schematic configuration of a circuit connecting device according to a modified example of the second embodiment. Fig.14A It is a diagram showing a schematic structure of a circuit connecting device according to a third embodiment. Fig. 14B It is a diagram showing a schematic structure of a circuit connecting device according to a third embodiment. Fig.15 It is a diagram showing a schematic configuration of a circuit connecting device according to a modified example of the third embodiment. Fig.16A It is a diagram showing a schematic structure of a circuit connecting device according to a fourth embodiment. Fig. 16B It is a diagram showing a schematic structure of a circuit connecting device according to a fourth embodiment. Fig.17 It is a diagram showing a schematic structure of a circuit connecting device according to a fifth embodiment. Fig.18 This is a diagram showing a schematic configuration of a circuit connecting device according to a modified example of the fifth embodiment. Fig.19A It is a diagram showing a schematic structure of a circuit connecting device according to a sixth embodiment. Fig.19B It is a diagram showing a schematic structure of a circuit connecting device according to a sixth embodiment. Fig. 20A It is a diagram showing a schematic configuration of a circuit connecting device according to a comparative example of the first embodiment. Fig. 20B It is a diagram showing a schematic configuration of a circuit connecting device according to a comparative example of the first embodiment. DETAILED DESCRIPTION

[0011] Implementation Method 1 Hereinafter, a circuit connection device 2 and a rotating electrical machine device 100 according to the first embodiment will be described with reference to the drawings. Figure 1 1 is a schematic cross-sectional view of a rotating electrical machine device 100. The rotating electrical machine device 100 includes a rotating electrical machine 1 of a multi-phase winding type and a circuit connection device 2 for controlling the rotating electrical machine 1.

[0012] The rotary electric machine 1 mainly includes a rotary shaft 11 , a rotor 12 , a stator 13 , a housing 14 , a winding 15 , an annular wiring portion 16 , wiring terminals 17 , a first bearing 18 a , and a second bearing 18 b .

[0013] Figure 1FIG. 1 is a cross-sectional view of the rotating electrical machine device 100 along the rotating shaft 11. Figure 1 In the drawing, the lower side of the paper is the output side of the rotating shaft 11 , and the upper side of the paper is the non-output side of the rotating shaft 11 .

[0014] The rotating shaft 11 extends along the axis. The rotor 12 is fixed to the rotating shaft 11. A plurality of pairs of permanent magnets (not shown) are arranged on the outer peripheral surface of the rotor 12. These permanent magnets constitute field poles.

[0015] The stator 13 is provided to surround the outer periphery of the rotor 12. The stator 13 is fixed to the inner surface of the housing 14. An air gap is formed between the outer peripheral surface of the rotor 12 and the inner peripheral surface of the stator 13. The air gap is formed over the entire circumference in the circumferential direction around the axis of the rotating shaft 11.

[0016] The housing 14 accommodates the rotating shaft 11, the rotor 12, and the stator 13. The housing 14 has a cylindrical portion 14a and a bottom portion 14b. The cylindrical portion 14a covers the stator 13 from the outer peripheral side. The stator 13 is fixed to the cylindrical portion 14a by press-fitting. The bottom portion 14b covers the lower end of the cylindrical portion 14a. In addition, the upper end of the cylindrical portion 14a is covered by the substrate support member 5 of the circuit connection device 2 described later.

[0017] The winding 15 is wound around the stator 13. The winding 15 includes a U-phase winding, a V-phase winding, and a W-phase winding.

[0018] The annular wiring portion 16 is arranged on the non-output side of the rotating shaft 11 (i.e., Figure 1 The annular wiring portion 16 is connected to the end of the winding 15 by TIG welding or the like.

[0019] The wiring terminal 17 is connected to the annular wiring portion 16. The wiring terminal 17 extends from the annular wiring portion 16 through the substrate support member 5 and toward the non-output side of the rotating shaft 11. The wiring terminal 17 is electrically connected to the end of the winding 15 via the annular wiring portion 16. The wiring terminal 17 is composed of three conductors. These three conductors are respectively connected to the wiring terminal of the U-phase winding, the wiring terminal of the V-phase winding, and the wiring terminal of the W-phase winding of the winding 15.

[0020] A first bearing 18a is provided at the non-output end of the rotating shaft 11. The first bearing 18a is fixed to the substrate support member 5. A second bearing 18b is provided at the output end of the rotating shaft 11. The second bearing 18b is fixed to the bottom 14b. The first bearing 18a and the second bearing 18b support the rotating shaft 11 rotatably.

[0021] A sensor rotor 19 is fixed to the end surface of the non-output side of the rotating shaft 11. The sensor rotor 19 rotates together with the rotating shaft 11. The sensor rotor 19 includes one or more pairs of permanent magnets.

[0022] The circuit connection device 2 is a control unit that controls the current flowing through the winding 15 of the rotating electrical machine 1. The circuit connection device 2 includes a circuit substrate 3, a connector 4, a substrate support member 5, a first fastening member 6 (fixing member), a second fastening member 7, and a cover member 20. The cover member 20 covers the circuit substrate 3 and the substrate support member 5. Figure 2 It is a perspective view of the circuit connecting device 2 and is a view showing a state in which the cover member 20 is removed.

[0023] The circuit substrate 3 is a printed wiring substrate. Figure 1 As shown, the circuit substrate 3 has a first surface 3 a and a second surface 3 b. Figure 3A is a perspective view of the circuit board 3 as viewed from the first surface 3a side. Figure 3B This is a perspective view of the circuit board 3 as viewed from the second surface 3b side.

[0024] The following, such as Figure 2 As shown, a direction on the plane along the first surface 3a is referred to as the first direction D1, and a direction on the above plane that is orthogonal to the first direction D1 is referred to as the second direction D2. In addition, a direction orthogonal to the first direction D1 and the second direction D2 is referred to as the third direction D3. The third direction D3 is the thickness direction of the circuit substrate 3. In the third direction D3, the side where the circuit substrate 3 is located is referred to as the upper side, and the side where the substrate support member 5 is located is referred to as the lower side. The first surface 3a is the upper surface of the circuit substrate 3, and the second surface 3b is the lower surface of the circuit substrate 3.

[0025] The circuit substrate 3 has a power supply circuit for driving the rotating electric machine 1, a control circuit for controlling the driving of the rotating electric machine 1, a signal circuit to which a signal from a sensor or the like is input, a noise filter circuit for removing noise components contained in the power supply and the signal, etc. Various electronic components 31 constituting the above-mentioned circuits are mounted on the circuit substrate 3. The electronic components 31 are mounted on the first surface 3a and the second surface 3b of the circuit substrate 3.

[0026] The control circuit has a rotation sensor 31A as an electronic component 31. The rotation sensor 31A is mounted on the second surface 3b of the circuit substrate 3. The rotation sensor 31A is a magnetic sensor. Figure 1 As shown in FIG. 1 , the rotation sensor 31A is arranged on the same axis as the sensor rotor 19. The sensor rotor 19 and the rotation sensor 31A face each other with a gap therebetween. The rotation sensor 31A detects the change in the magnetic field of the permanent magnet of the sensor rotor 19 that rotates together with the rotating shaft 11 and converts it into an electrical signal. The rotation state of the rotating shaft 11 is detected by the sensor rotor 19 and the rotation sensor 31A. In addition, as the rotation sensor 31A, a resolver, a Hall sensor, an optical sensor, etc. may also be used.

[0027] The circuit board 3 has a plurality of terminal holes 32. The plurality of terminal holes 32 are arranged at equal intervals along the first direction D1. In addition, the intervals between the plurality of terminal holes 32 may not be equal intervals.

[0028] The plurality of terminal holes 32 are arranged at one end portion of the circuit substrate 3 in the second direction D2. The terminal holes 32 penetrate the circuit substrate 3 along the third direction D3. Alternatively, the terminal holes 32 may be arranged dispersedly at a plurality of locations.

[0029] A plurality of press-fit terminals 44 of the connector 4 described later are respectively press-fitted into the plurality of terminal holes 32. On the inner surface of the terminal hole 32, a conductive layer (electrical connection pattern) not shown in the figure and connected to the press-fit terminals 44 is formed.

[0030] like Figure 3A as well as Figure 3B As shown, the circuit board 3 includes a mounting portion R11 , a terminal-side supported portion R12 (supported portion), and a winding-side supported portion R13 .

[0031] The electronic component 31 is mounted on the mounting portion R11. The mounting portion R11 is arranged between the terminal-side supported portion R12 and the winding-side supported portion R13.

[0032] The terminal side supported portion R12 is arranged between the mounting portion R11 and the terminal hole 32. A first fastening hole 33 for mounting the first fastening member 6 is formed at the terminal side supported portion R12. The first fastening hole 33 penetrates the circuit substrate 3 along the third direction D3. In the example shown in the figure, two first fastening holes 33 are formed to be arranged along the first direction D1. The number of the first fastening holes 33 may also be one or more than three.

[0033] At the terminal side supported portion R12, the second surface 3b of the circuit board 3 contacts the supporting surface 5a of the board supporting member 5. The terminal side supported portion R12 is supported by the board supporting member 5. The terminal side supported portion R12 is fixed to the board supporting member 5 by the first fastening member 6.

[0034] The winding side supported portion R13 is arranged on the opposite side of the terminal side supported portion R12 in a manner of sandwiching the mounting portion R11. The winding side supported portion R13 is arranged at the end portion on the other side of the second direction D2 in the circuit substrate 3. The winding side supported portion R13 may also be arranged on the inner side of the mounting portion R11. A second fastening hole 34 for mounting the second fastening member 7 is formed at the winding side supported portion R13. The second fastening hole 34 penetrates the circuit substrate 3 along the third direction D3. In the example shown in the figure, one second fastening hole 34 is formed. The number of the second fastening holes 34 may also be two or more.

[0035] At the winding side supported portion R13, the second surface 3b of the circuit board 3 contacts the supporting surface 5a of the board supporting member 5. The winding side supported portion R13 is supported by the board supporting member 5. The winding side supported portion R13 is fixed to the board supporting member 5 by the second fastening member 7.

[0036] A plurality of (three in this embodiment) winding through holes 35 are formed on the circuit board 3. The winding through holes 35 penetrate the circuit board 3 in the third direction D3. The three conductors of the wiring terminal 17 are respectively inserted into the winding through holes 35. The ends of the wiring terminal 17 are connected to the circuit board 3 by welding or the like.

[0037] Figure 4 4 is a perspective view of the connector 4. The connector 4 supplies power from an external power source to the circuit board 3. The connector 4 supplies various signals from an external control device to the circuit board 3. Figure 4 As shown, the connector 4 includes a main body 40 , power terminals 41 , signal terminals 42 , and a plurality of press-fit terminals 44 (connection terminals).

[0038] The main body 40 is made of resin. For example, the material of the main body 40 is polybutylene terephthalate (PBT) or polyphenylene sulfide (PPS). The main body 40 has a power side housing 40a that accommodates the power terminal 41 inside and a signal side housing 40b that accommodates the signal terminal 42 inside. In addition, in the present embodiment, the power side housing 40a and the signal side housing 40b are different containers, but the power side housing 40a and the signal side housing 40b can also be formed by a single container. In addition, the power side housing 40a and the signal side housing 40b can also be formed by three or more containers. That is, the power terminal 41 and the signal terminal 42 can be accommodated in a single container, or can be separately accommodated in three or more containers.

[0039] The power terminal 41 is connected to an external power source. The signal terminal 42 is connected to an external control device or the like. In addition, in the present embodiment, the power terminal 41 and the signal terminal 42 have different shapes, but terminals of the same shape may be used as the power terminal 41 and the signal terminal 42. Terminals of three or more shapes may also be used as the power terminal 41 and the signal terminal 42.

[0040] A plurality of press-fit terminals 44 are provided corresponding to the power terminal 41 and the signal terminal 42, respectively. In addition, a plurality of press-fit terminals 44 may be provided for one power terminal 41. The press-fit terminal 44 is connected to the corresponding power terminal 41 or signal terminal 42. The press-fit terminal 44 extends along a third direction D3. The press-fit terminal 44 extends to the side opposite to the extension direction of the power terminal 41 and the signal terminal 42. The plurality of press-fit terminals 44 are configured to be arranged at equal intervals along the first direction D1. In addition, the press-fit terminal 44 may also extend in a direction intersecting the extension direction of the power terminal 41 and the signal terminal 42 (for example, a direction orthogonal to the extension direction of the power terminal 41 and the signal terminal 42). The plurality of press-fit terminals 44 may also be configured to be dispersed in a plurality of locations.

[0041] The press-fit terminal 44 is formed as a whole in the shape of an elongated plate. A press-fit portion 44a is formed at the front end of the press-fit terminal 44. The width (maximum width) of the press-fit portion 44a is greater than the diameter of the terminal hole 32. A hole is formed in the press-fit portion 44a, thereby allowing the press-fit portion 44a to be elastically deformed. In addition, a recessed portion that allows the press-fit portion 44a to be elastically deformed may also be formed in the press-fit portion 44a.

[0042] The press-fit terminal 44 is pressed into the terminal hole 32. At this time, the press-fit terminal 44 contacts the conductive layer formed on the inner surface of the terminal hole 32 and is electrically connected. As a result, the connector 4 is electrically connected to the circuit substrate 3. By using the press-fit terminal 44, the circuit substrate 3 and the connector 4 can be electrically connected without soldering or the like. Therefore, the manufacture of the circuit connection device 2 becomes easy and the manufacturing time can be shortened.

[0043] like Figure 1 As shown, the substrate support member 5 is provided between the stator 13 and the circuit substrate 3. The substrate support member 5 is fixed to the housing 14. The substrate support member 5 covers the stator 13 from above. The substrate support member 5 functions as a cover that closes the inside of the rotating electric machine 1.

[0044] The circuit board 3 is mounted on the substrate support member 5. The substrate support member 5 has a support surface 5a for supporting the circuit board 3. The support surface 5a is the upper surface of the substrate support member 5. The substrate support member 5 is made of metal, for example. For example, the material of the substrate support member 5 is aluminum or an aluminum alloy such as ADC12. The substrate support member 5 can also be formed of a resin such as polybutylene terephthalate (PBT) and polyphenylene sulfide (PPS).

[0045] Figure 5 It is a perspective view of the substrate supporting member 5 . like Figure 5As shown, a first receiving recess 51 is provided on the supporting surface 5a of the substrate supporting member 5, and the first receiving recess 51 receives the electronic component 31 mounted on the second surface 3b of the circuit substrate 3. The first receiving recess 51 is provided at a position corresponding to the mounting portion R11. In the example shown in the figure, two first receiving recesses 51 are formed. In addition, the number of the first receiving recesses 51 may be one or more than three.

[0046] A through hole 52 for the rotating shaft is formed in the substrate support member 5. The through hole 52 for the rotating shaft penetrates the substrate support member 5 along the third direction D3. Figure 1 As shown, the non-output side end of the rotating shaft 11 is inserted into the rotating shaft through hole 52 .

[0047] The substrate support member 5 has a terminal side support portion R21 (support portion) and a winding side support portion R22. In addition, in the present embodiment, the support surface 5a of the substrate support member 5 is configured as a single surface extending continuously from the terminal side support portion R21 to the winding side support portion R22 in the entire area of ​​the substrate support member 5. However, the support surface 5a may be divided into a plurality of surfaces depending on the shape of the first housing recess 51 (i.e., the arrangement of the electronic component 31 mounted on the second surface 3b of the circuit substrate 3) or the like.

[0048] The terminal-side supporting portion R21 is provided at a position corresponding to the terminal-side supported portion R12 of the circuit board 3. The terminal-side supporting portion R21 supports the terminal-side supported portion R12 from below.

[0049] The terminal side support portion R21 is formed with a third fastening hole 53 for mounting the first fastening member 6. The third fastening hole 53 is formed at a position corresponding to the first fastening hole 33. In the example shown in the figure, two third fastening holes 53 are formed. The number of the third fastening holes 53 may be one or three or more.

[0050] The winding-side supporting portion R22 is provided at a position corresponding to the winding-side supported portion R13 of the circuit board 3. The winding-side supporting portion R22 supports the winding-side supported portion R13 from below.

[0051] The winding side support portion R22 is formed with a fourth fastening hole 54 for mounting the second fastening member 7. The fourth fastening hole 54 is formed at a position corresponding to the second fastening hole 34. In the example shown in the figure, one fourth fastening hole 54 is formed. The number of the fourth fastening holes 54 may be two or more.

[0052] A second receiving recess 55 is provided on the supporting surface 5a of the substrate supporting member 5. The second receiving recess 55 is provided at a position corresponding to the terminal hole 32. The front end portion of the press-fit terminal 44 pressed into the terminal hole 32 is received in the second receiving recess 55. The second receiving recess 55 is divided by the terminal side supporting portion R21 and a pair of side portions R23 extending from both ends of the terminal side supporting portion R21 in the first direction D1 to one side of the second direction D2. The second receiving recess 55 is open toward one side of the second direction D2. In addition, the pair of side portions R23 may also be omitted.

[0053] A plurality of (three in this embodiment) winding through holes 56 are formed in the substrate support member 5. The winding through holes 56 penetrate the substrate support member 5 in the third direction D3. The three conductors of the wiring terminal 17 are inserted through the winding through holes 56, respectively.

[0054] The first fastening member 6 is, for example, a screw. The first fastening member 6 is made of metal. For example, the material of the first fastening member 6 is iron or stainless steel. The first fastening member 6 may also be formed of a resin such as polyphenylene sulfide (PPS). The first fastening member 6 is mounted to the first fastening hole 33 and the third fastening hole 53 from the first surface 3a side of the circuit substrate 3. The first fastening member 6 fixes the circuit substrate 3 to the substrate support member 5 while pressing the circuit substrate 3 toward the substrate support member 5.

[0055] The second fastening member 7 is, for example, a screw. The second fastening member 7 may also be formed of resin. The second fastening member 7 may also be made of metal. The second fastening member 7 is attached to the second fastening hole 34 and the fourth fastening hole 54 from the first surface 3a side of the circuit substrate 3. The second fastening member 7 fixes the circuit substrate 3 to the substrate support member 5 while pressing the circuit substrate 3 toward the substrate support member 5.

[0056] Next, refer to Figure 2 , Figure 6 , Fig. 7A as well as Figure 7B , a method for manufacturing the circuit connecting device 2 according to the first embodiment is described.

[0057] like Figure 6As shown, first, the circuit substrate 3 is mounted on the substrate support member 5. At this time, the support surface 5a of the substrate support member 5 is opposite to the second surface 3b of the circuit substrate 3. The terminal side supported portion R12 of the circuit substrate 3 is placed on the terminal side supporting portion R21 of the substrate support member 5. The winding side supported portion R13 of the circuit substrate 3 is placed on the winding side supporting portion R22 of the substrate support member 5. The electronic component 31 mounted on the second surface 3b of the circuit substrate 3 is accommodated in the first accommodation recess 51. The circuit substrate 3 is fastened to the substrate support member 5 by mounting the first fastening member 6 to the first fastening hole 33 and the third fastening hole 53 and mounting the second fastening member 7 to the second fastening hole 34 and the fourth fastening hole 54.

[0058] Next, the connector 4 is mounted on the circuit board 3. Fig. 7A As shown, the connector 4 is arranged on the first surface 3a side of the circuit board 3. The connector 4 is arranged so that the terminal side supported portion R12 (ie, the first fastening member 6) overlaps with the connector 4 when viewed along the third direction D3. Figure 7B As shown, the connector 4 is pressed toward the circuit substrate 3, and the press-fit terminal 44 is pressed into the terminal hole 32. That is, in this embodiment, the press-fit terminal 44 is pressed into the terminal hole 32 toward the lower side. The direction in which the press-fit terminal 44 is pressed is substantially the same as the third direction D3. In addition, in the example shown in the figure, when the press-fit terminal 44 is pressed into the terminal hole 32, the circuit substrate 3 and the connector 4 are arranged separately. However, as long as the connector 4 does not interfere with the first fastening member 6, the circuit substrate 3 and the connector 4 may also be arranged close to or abutting each other.

[0059] Here, when the press-fit terminal 44 is pressed into the terminal hole 32, a pressing force is applied to the circuit substrate 3. In the present embodiment, a terminal side supported portion R12 supported by the terminal side supporting portion R21 is provided between the mounting portion R11 and the terminal hole 32. The pressing force applied to the circuit substrate 3 can be borne by the terminal side supported portion R12, so that the pressing force can be prevented from being directly transmitted to the mounting portion R11, thereby suppressing the strain of the mounting portion R11.

[0060] As described above, the circuit connection device 2 of the present embodiment includes: a connector 4 having a press-fit terminal 44 connected to the outside; a circuit substrate 3 on which an electronic component 31 is mounted and on which a terminal hole 32 is formed into which the press-fit terminal 44 is pressed; a substrate support member 5 that supports the circuit substrate 3; and a first fastening member 6 that fixes the circuit substrate 3 to the substrate support member 5. The circuit substrate 3 includes a mounting portion R11 on which the electronic component 31 is mounted and a terminal-side supported portion R12 that is fixed to the substrate support member 5 by the first fastening member 6 and supported by the substrate support member 5. The terminal-side supported portion R12 is arranged between the mounting portion R11 and the terminal hole 32.

[0061] The circuit substrate 3 has a terminal side supported portion R12, which is arranged between the mounting portion R11 for mounting the electronic component 31 and the terminal hole 32, and is supported by the substrate support member 5. Therefore, the pressing force applied to the circuit substrate 3 when the press-fit terminal 44 is pressed into the terminal hole 32 can be borne by the terminal side supported portion R12, so that the pressing force can be prevented from being directly transmitted to the mounting portion R11. Therefore, the strain of the circuit substrate 3 can be suppressed, and the damage of the electronic component 31 mounted to the mounting portion R11 can be prevented. In addition, the electronic component 31 is mounted on the circuit substrate 3, and the terminal hole 32 for the press-fit terminal 44 to be pressed is formed. Therefore, compared with the case where a mother substrate for mounting the electronic component and a sub-substrate for connecting the press-fit terminal are separately provided, the increase in the number of components of the circuit connection device 2 can be suppressed. From the above, according to the circuit connection device 2 of the present embodiment, the increase in the number of components can be suppressed, the strain of the circuit substrate 3 can be suppressed, and the damage of the electronic component 31 mounted to the circuit substrate 3 can be prevented.

[0062] In addition, compared with the case where the terminal-side supported portion R12 is not provided, the electronic component 31 can be mounted closer to the terminal hole 32, thereby expanding the mounting area of ​​the electronic component 31. The electronic component 31 can be efficiently mounted on the circuit substrate 3, thereby miniaturizing the circuit substrate 3.

[0063] Furthermore, when the number of press-fit terminals 44 of the connector 4 increases, for example, due to redundancy, the pressing force applied to the circuit substrate 3 also increases when the press-fit terminals 44 are pressed into the terminal holes 32. Even in this case, the strain of the circuit substrate 3 can be suppressed by the terminal-side supported portion R12 receiving the pressing force applied to the circuit substrate 3.

[0064] Furthermore, the terminal-side supported portion R12 is arranged at a position overlapping with the connector 4 when viewed in the third direction D3 . Thus, compared with the case where the terminal-side supported portion R12 is arranged at a position that does not overlap with the connector 4 when viewed along the third direction D3, the position of the terminal-side supported portion R12 can be made closer to the terminal hole 32. The closer the position of the terminal-side supported portion R12 is to the terminal hole 32, the greater the effect of preventing the pressing force applied to the circuit substrate 3 when the press-fit terminal 44 is pressed into the terminal hole 32 from being transmitted to the mounting portion R11. Therefore, it is possible to more effectively prevent the pressing force applied to the circuit substrate 3 when the press-fit terminal 44 is pressed into the terminal hole 32 from being transmitted to the mounting portion R11. In addition, since the mounting portion R11 can be made closer to the terminal hole 32, the electronic component 31 can be mounted at a position closer to the terminal hole 32.

[0065] Comparative example of implementation mode 1. Fig. 20A as well as Fig. 20B 2 is a diagram showing a schematic structure of a circuit connection device 202 according to a comparative example of the first embodiment. Fig. 20A as well as Fig. 20B As shown, in the case where the first fastening member 6 is not provided in the circuit connection device 202, when the connector 4 is mounted on the circuit substrate 3, it is considered that the circuit substrate 3 is temporarily fixed by pressing the circuit substrate 3 toward the substrate support member 5 by the pressing member 9. In this case, when the terminal-side supported portion R12 is to be arranged at a position overlapping with the connector 4 when viewed along the third direction D3, in order to avoid interference between the connector 4 and the pressing member 9, it is necessary to provide an insertion hole 45 for the pressing member 9 to be inserted in the connector 4. In addition, in order to prevent foreign matter from intruding into the circuit substrate 3, it is necessary to block the insertion hole 45 after the connector 4 is mounted on the circuit substrate 3. Therefore, the manufacture of the circuit connection device 202 becomes complicated.

[0066] In the circuit connection device 2 of the present embodiment, the circuit substrate 3 is fixed to the substrate support member 5 using the first fastening member 6. Therefore, unlike the circuit connection device 202 of the comparative example, it is not necessary to provide a pressing member 9 or the like when the connector 4 is mounted on the circuit substrate 3, and the terminal-side supported portion R12 can be easily arranged at a position between the mounting portion R11 and the terminal hole 32 and overlapping with the connector 4 when viewed along the third direction D3.

[0067] A variation of implementation method 1. like Fig. 8A and Figure 8B As shown, the press-fit terminal 44 may also be pressed into the terminal hole 32 toward the upper side. In this case, the connector 4 is arranged on the second surface 3b side of the circuit substrate 3. The substrate support member 5 is arranged between the circuit substrate 3 and the connector 4. The substrate support member 5 is formed with a terminal through hole 57 for inserting the press-fit terminal 44. The press-fit terminal 44 is inserted into the terminal through hole 57 and pressed into the terminal hole 32.

[0068] In addition, as shown in Figure 9 and Fig. 9B As shown, a receiving member 8 may also be provided on the first surface 3a of the circuit substrate 3. The receiving member 8 supports the circuit substrate 3 from above when the press-fit terminal 44 is pressed into the terminal hole 32. The receiving member 8 is arranged to surround the plurality of terminal holes 32. The receiving member 8 supports the two side portions of the circuit substrate 3 in the second direction D2 of the terminal hole 32. The pressing force applied to the circuit substrate 3 when the press-fit terminal 44 is pressed into the terminal hole 32 is clamped from above by the receiving member 8, so that the strain of the circuit substrate 3 can be more effectively suppressed.

[0069] The receiving member 8 may be configured to support only one side portion in the second direction D2 of the terminal hole 32 in the circuit board 3. For example, the receiving member 8 may be disposed only between the terminal hole 32 and the terminal-side supported portion R12.

[0070] Implementation method 2. Below, refer to Figures 10 to 12B , a circuit connection device 2A according to the second embodiment will be described. In addition, components having the same functions and effects as those in the first embodiment are denoted by the same reference numerals and their descriptions are omitted.

[0071] like Fig.11 As shown, in this embodiment, the circuit substrate 3 also has a second terminal supported portion R14 (second supported portion). The second terminal supported portion R14 is arranged on the opposite side of the terminal supported portion R12 to sandwich the plurality of terminal holes 32 therebetween. That is, the plurality of terminal holes 32 are arranged between the terminal side supported portion R12 and the second terminal side supported portion R14. At the second terminal side supported portion R14, the second surface 3b of the circuit substrate 3 abuts against the supporting surface 5a of the substrate supporting member 5. The second terminal side supported portion R14 is supported by the substrate supporting member 5.

[0072] The substrate support member 5 further includes a second terminal side support portion R24 (second support portion). The second terminal side support portion R24 is provided at a position corresponding to the second terminal side supported portion R14 of the circuit substrate 3. The second terminal side support portion R24 supports the second terminal side supported portion R14 from below.

[0073] In the present embodiment, a pair of side portions R23 connects the two ends of the terminal side support portion R21 in the first direction D1 with the two ends of the second terminal side support portion R24 in the first direction D1, respectively. A second receiving recess 55A (storing recess) divided by the terminal side support portion R21, the second terminal side support portion R24 and a pair of side portions R23 is provided on the supporting surface 5a of the substrate support member 5. The second receiving recess 55A is surrounded by the terminal side support portion R21, the second terminal side support portion R24 and a pair of side portions R23 to form a closed space. The front end portion of the press-fit terminal 44 pressed into the terminal hole 32 is received in the second receiving recess 55A. In addition, the press-fit terminal 44 is pressed into the terminal hole 32 toward the lower side.

[0074] This embodiment can also achieve the same effects as Embodiment 1. That is, according to the circuit connection device 2A of this embodiment, the number of components can be suppressed from increasing, and the strain of the circuit board 3 can be suppressed, thereby preventing damage to the electronic components 31 mounted on the circuit board 3.

[0075] Furthermore, the circuit board 3 further includes a second terminal side supported portion R14 supported by the board supporting member 5. The terminal hole 32 is arranged between the terminal side supported portion R12 and the second terminal side supported portion R14. The pressing force applied to the circuit board 3 when the press-fit terminal 44 is press-fitted into the terminal hole 32 can be received by the second terminal side supported portion R14 in addition to the terminal side supported portion R12. Therefore, the strain of the circuit board 3 can be more reliably suppressed.

[0076] Furthermore, the substrate support member 5 includes: a terminal side support portion R21 that supports the terminal side supported portion R12; a second terminal side support portion R24 that supports the second terminal side supported portion R14; and a second receiving recess 55A that is disposed between the terminal side support portion R21 and the second terminal side support portion R24 and receives the front end of the press-fit terminal 44 that is pressed into the terminal hole 32. The second receiving recess 55A is surrounded by the terminal side support portion R21, the second terminal side support portion R24, and a pair of side portions R23 that connect the terminal side support portion R21 and the second terminal side support portion R24. When the press-fit terminal 44 is pressed into the terminal hole 32, fine metal chips may be generated. The second storage recess 55A is surrounded by the terminal side support portion R21, the second terminal side support portion R24 and a pair of side portions R23 to form a closed space, so that metal chips can be prevented from flying outside the second storage recess 55A. Therefore, it is possible to prevent metal chips from adhering to various circuits of the circuit substrate 3 and causing a short circuit of the circuit. In addition, it is also possible to prevent foreign matter from invading the second storage recess 55A from the outside. Therefore, it is possible to prevent foreign matter from adhering to the press-fit terminal 44 or the terminal hole 32 from the outside, causing the circuit substrate 3 to malfunction or the generation of oxides on the circuit substrate 3 and the connector 4.

[0077] A variation of the second implementation method. like Fig.13A and Fig. 13B As shown, the press-fit terminal 44 may also be pressed into the terminal hole 32 toward the upper side. In this case, the connector 4 is arranged on the second surface 3b side of the circuit substrate 3. The substrate support member 5 is arranged between the circuit substrate 3 and the connector 4. The substrate support member 5 is formed with a terminal through hole 57 for inserting the press-fit terminal 44. The press-fit terminal 44 is inserted into the terminal through hole 57 and pressed into the terminal hole 32.

[0078] In addition, the second terminal side support portion R24 may also be configured to abut against the first surface 3a of the circuit substrate 3 to support the second terminal side supported portion R14 from above. In this case, the second terminal side support portion R24 can more effectively withstand the pressing force applied to the circuit substrate 3 when the press-fit terminal 44 is pressed into the terminal hole 32, thereby more effectively suppressing the strain of the circuit substrate 3.

[0079] Implementation method three. Below, refer to Fig.14A and Fig. 14B , a circuit connection device 2B according to Embodiment 3 will be described. In addition, components having the same functions and effects as those in Embodiments 1 and 2 are denoted by the same reference numerals and their descriptions are omitted.

[0080] Fig.14A and Fig. 14B It is a diagram showing a schematic structure of a circuit connecting device 2B. Fig. 14B This is a diagram of the circuit connection device 2B as viewed along the second direction 2D.

[0081] like Fig.14A as well as Fig. 14B As shown, in this embodiment, the substrate support member 5 is formed with an observation hole 58, which is different from the second embodiment. The observation hole 58 is formed in the second terminal side support portion R24. The observation hole 58 is formed so that the front end of the press-fit terminal 44 accommodated in the second accommodation recess 55A can be confirmed from the outside. When observed along the second direction D2, the observation hole 58 is formed at a position overlapping with the front ends of the plurality of press-fit terminals 44. The observation hole 58 has a size that allows all the front ends of the plurality of press-fit terminals 44 to be observed using a single observation hole 58.

[0082] The state of the press-fit terminal 44 being pressed into the terminal hole 32 can be confirmed from the outside of the circuit connection device 2B through the observation hole 58. Therefore, it is possible to prevent a poor connection between the circuit substrate 3 and the connector 4, an erroneous operation of the circuit substrate 3, etc. caused by poor pressing of the press-fit terminal 44 into the terminal hole 32. For example, when the front end of the press-fit terminal 44 cannot be confirmed through the observation hole 58 or the protrusion amount of the press-fit terminal 44 that can be confirmed through the observation hole 58 is insufficient, it is determined that the press-fit terminal 44 is poorly pressed into the terminal hole 32.

[0083] Modification of Implementation Method 3. like Fig.15 As shown, the plurality of observation holes 58 may be formed corresponding to the plurality of press-fit terminals 44 . In addition, the plurality of observation holes 58 may be formed so that two or more press-fit terminals 44 can be observed through one observation hole 58 .

[0084] Implementation method four. Below, refer to Fig.16A and Fig. 16B , a circuit connection device 2C according to a fourth embodiment will be described. In addition, components having the same functions and effects as those of the first to third embodiments are denoted by the same reference numerals and their descriptions are omitted.

[0085] like Fig.16A as well as Fig. 16B As shown, in the present embodiment, the circuit board 3 further includes a second mounting portion R15 and an end-side supported portion R16.

[0086] The second mounting portion R15 is mounted with the second electronic component 63. The second mounting portion R15 is arranged on the opposite side of the terminal hole 32 with the second terminal side supported portion R14 interposed therebetween. That is, the second terminal side supported portion R14 is arranged between the second mounting portion R15 and the terminal hole 32.

[0087] The end side supported portion R16 is arranged on the opposite side of the second terminal side supported portion R14 with the second mounting portion R15 sandwiched therebetween. That is, the second mounting portion R15 is arranged between the second terminal side supported portion R14 and the end side supported portion R16. At the end side supported portion R16, the second surface 3b of the circuit substrate 3 abuts against the supporting surface 5a of the substrate supporting member 5. The end side supported portion R16 is supported by the substrate supporting member 5. The end side supported portion R16 may also be arranged on the inner side of the second mounting portion R15.

[0088] The substrate support member 5 further includes an end side support portion R25. The end side support portion R25 is provided at a position corresponding to the end side supported portion R16. The end side support portion R25 supports the end side supported portion R16 from below.

[0089] The support surface 5a of the substrate support member 5 is provided with a third housing recess 64 for housing the second electronic component 63 mounted on the second surface 3b of the circuit substrate 3. The third housing recess 64 is provided at a position corresponding to the second mounting portion R15.

[0090] The second terminal side supported portion R14 of the circuit substrate 3 and the second terminal side supporting portion R24 of the substrate supporting member 5 are fastened by a third fastening member 61. The third fastening member 61 is, for example, a screw. Fastening holes for installing the third fastening member 61 are formed in the second terminal side supported portion R14 and the second terminal side supporting portion R24. The third fastening member 61 fixes the circuit substrate 3 to the substrate supporting member 5 while pressing the circuit substrate 3 toward the substrate supporting member 5.

[0091] The end side supported portion R16 of the circuit substrate 3 and the end side supporting portion R25 of the substrate supporting member 5 are fastened by a fourth fastening member 62. The fourth fastening member 62 is, for example, a screw. Fastening holes for installing the fourth fastening member 62 are formed in the end side supported portion R16 and the end side supporting portion R25. The fourth fastening member 62 fixes the circuit substrate 3 to the substrate supporting member 5 while pressing the circuit substrate 3 toward the substrate supporting member 5.

[0092] This embodiment can also achieve the same effects as Embodiment 1. That is, according to the circuit connection device 2C of this embodiment, the number of components can be suppressed from increasing, and the strain of the circuit board 3 can be suppressed, thereby preventing damage to the electronic components 31 mounted on the circuit board 3.

[0093] Furthermore, the circuit board 3 further includes a second mounting portion R15 on which the second electronic component 63 is mounted. The second terminal-side supported portion R14 is disposed between the second mounting portion R15 and the terminal hole 32 . By providing the second mounting portion R15, the mounting area of ​​the electronic components 31 and 63 can be expanded. In addition, the second terminal side supported portion R14 supported by the substrate support member 5 is arranged between the second mounting portion R15 and the terminal hole 32. Therefore, the pressing force applied to the circuit substrate 3 when the press-fit terminal 44 is pressed into the terminal hole 32 can be borne by the second terminal side supported portion R14, thereby preventing the pressing force from being directly transmitted to the second mounting portion R15. Therefore, the strain of the circuit substrate 3 can be suppressed, and the second electronic component 63 mounted to the second mounting portion R15 can be prevented from being damaged.

[0094] Implementation method five. Below, refer to Fig.17 , a circuit connection device 2D according to the fifth embodiment will be described. In addition, components having the same functions and effects as those in the first to fourth embodiments are denoted by the same reference numerals and their descriptions are omitted.

[0095] In this embodiment, the substrate support member 5 and the first fastening member 6 are made of metal. Fig.17 As shown, a noise suppression component 31B as an electronic component 31 is mounted on the first surface 3a of the circuit substrate 3. The noise suppression component 31B includes an X capacitor and a Y capacitor. The noise suppression component 31B is arranged close to the terminal-side supported portion R12 of the circuit substrate 3.

[0096] The terminal-side supported portion R12 is provided with a GND pattern 71 (electrical connection portion). The GND pattern 71 is arranged on the first surface 3a of the circuit substrate 3. The X capacitor and the Y capacitor of the noise suppression component 31B are electrically connected to the GND pattern 71. When the first fastening member 6 is fastened to the circuit substrate 3, the first fastening member 6 is in contact with the GND pattern 71, and the GND pattern 71 is electrically connected to the first fastening member 6.

[0097] The substrate support member 5 is electrically connected to GND (ground). When the first fastening member 6 is fastened to the substrate support member 5, the first fastening member 6 is in contact with the substrate support member 5, and the first fastening member 6 is electrically connected to the substrate support member 5. Therefore, the X capacitor and the Y capacitor of the noise suppression component 31B are connected to GND via the GND pattern 71, the first fastening member 6, and the substrate support member 5.

[0098] This embodiment can also achieve the same effects as Embodiment 1. That is, according to the circuit connection device 2D of this embodiment, the number of components can be suppressed from increasing, and the strain of the circuit board 3 can be suppressed to prevent damage to the electronic components 31 mounted on the circuit board 3.

[0099] The substrate support member 5 is made of metal and electrically connected to GND. The first fastening member 6 is made of metal and electrically connected to the substrate support member 5. A GND pattern 71 electrically connecting the noise suppression component 31B as the electronic component 31 and the first fastening member 6 is formed in the terminal side supported portion R12. Thereby, the noise suppression component 31B can be connected to GND via the substrate support member 5 and the first fastening member 6 .

[0100] Furthermore, when the noise suppression component 31B is arranged at a position close to the terminal-side supported portion R12 in the mounting portion R11 (i.e., close to the terminal hole 32), the noise of the power supply and the signal can be effectively removed by the noise suppression component 31B. For example, when the power supply is supplied to the electronic component 31 from the press-fit terminal 44 via the terminal hole 32, the noise of the power supply can be removed immediately after it is input to the mounting portion R11 by the noise suppression component 31B. When the signal is output from the electronic component 31 to the press-fit terminal 44 via the terminal hole 32, the noise of the signal can be removed by the noise suppression component 31B before it reaches the terminal hole 32.

[0101] Furthermore, since the terminal-side supported portion R12 can suppress the strain of the mounting portion R11, a small ceramic capacitor or the like with low strain tolerance can be used as the noise suppression component 31B. Therefore, the circuit board 3 can be miniaturized.

[0102] Modification of Implementation Method Five. like Fig.18 As shown, the GND pattern 71 may be formed to extend to the second surface 3b of the circuit substrate 3 at the terminal side supported portion R12. In this case, the GND pattern 71 is directly connected to the substrate support member 5. The X capacitor and the Y capacitor of the noise suppression component 31B are connected to the GND via the GND pattern 71 and the substrate support member 5.

[0103] Implementation method six. Below, refer to Fig.19A and Fig.19B , a circuit connection device 2E according to a sixth embodiment will be described. In addition, components having the same functions and effects as those in the first to fifth embodiments are denoted by the same reference numerals and their descriptions are omitted.

[0104] like Fig.19A and Fig.19B As shown, in this embodiment, the circuit board 3 and the connector 4 are connected using a multi-pole connector.

[0105] As an alternative to the plurality of press-fit terminals 44, the connector 4 has a female connector component 81. The female connector component 81 has a plurality of connection terminals 81a arranged in a row along the first direction D1 and a holding member 81b for holding the plurality of connection terminals 81a. The holding member 81b has a recessed portion, and the plurality of connection terminals 81a are arranged inside the recessed portion.

[0106] The circuit substrate 3 has a male connector component 82. The male connector component 82 has a plurality of connection fitting portions 82a (terminal holes) arranged along the first direction D1 and a holding member 82b for holding the plurality of connection fitting portions 82a. One end of the plurality of connection fitting portions 82a is respectively fitted with a plurality of connection terminals 81a. The other end 82a1 of the plurality of connection fitting portions 82a is fixed to the circuit substrate 3, for example, by welding.

[0107] The circuit substrate 3 is electrically connected to the connector 4 by fitting a plurality of connection terminals 81a with one end of a plurality of connection fitting portions 82a, respectively. When the connection terminal 81a is fitted into one end of the connection fitting portion 82a, a pressing force is applied to the circuit substrate 3. The terminal side supported portion R12 supported by the substrate support member 5 is arranged between the mounting portion R11 for mounting the electronic component 31 and the terminal hole 32. Therefore, the pressing force applied to the circuit substrate 3 when the connection terminal 81a is fitted into one end of the connection fitting portion 82a can be borne by the terminal side supported portion R12, thereby preventing the pressing force from being directly transmitted to the mounting portion R11. Therefore, the strain of the circuit substrate 3 can be suppressed, and the electronic component 31 mounted to the mounting portion R11 can be prevented from being damaged. In addition, the electronic component 31 is mounted on the circuit substrate 3, and a connection fitting portion 82a for pressing the connection terminal 81a is formed. Therefore, compared with the case where a mother substrate for mounting electronic components and a sub-substrate for connecting connecting terminals are separately provided, the number of components of the circuit connection device 2E can be suppressed from increasing. As described above, according to the circuit connection device 2E of this embodiment, the number of components can be suppressed from increasing, and the strain of the circuit substrate 3 can be suppressed, thereby preventing damage to the electronic components 31 mounted on the circuit substrate 3.

[0108] In addition, the various embodiments can be combined or the various embodiments can be appropriately modified or omitted.

[0109] For example, the number of the press-fit terminals 44 , the first fastening members 6 , the second fastening members 7 , and the like may be appropriately changed according to the specifications of the rotating electrical machine device 100 . The first fastening member 6 and the second fastening member 7 may be any member as long as they can fix the circuit board 3 to the board support member 5 , and are not limited to screws. The substrate support member 5 may be formed integrally with the housing 14 of the rotary electric machine 1 . The plurality of terminal holes 32 are arranged at the end of one side in the first direction D1. In this case, for example, the mounting portion R11 is arranged at the end of the other side in the first direction D1, and the terminal-side supported portion R12 may be arranged to be sandwiched between the mounting portion R11 and the terminal hole 32 in the first direction D1. The plurality of terminal holes 32 may also be arranged in combination at the end of one side in the first direction D1 and the end of one side in the second direction D2. Explanation of symbols

[0110] 1 rotating electrical machine; 2, 2A, 2B, 2C, 2D, 2E circuit connection device; 3 circuit substrate; 4 connector; 5 substrate support member; 6 first fastening member (fixing member); 31 electronic component; 31B noise suppression component; 32 terminal hole; 44 press-fit terminal (connecting terminal); 55A second receiving recess (storing recess); 58 observation hole; 63 second electronic component; 71 GND pattern (electrical connection portion); 81a connecting terminal; 82a connecting fitting portion (terminal hole); R11 mounting portion; R12 terminal side supported portion (supported portion); R14 second terminal side supported portion (second supported portion); R15 second mounting portion; R21 terminal side supporting portion (supporting portion); R23 side portion; R24 second terminal side supporting portion (second supporting portion); 100 rotating electrical machine device.

Claims

1. A circuit connection device, characterized in that: include: A connector having a connection terminal for connection to the outside; A circuit substrate, on which electronic components are mounted and on which terminal holes are formed for the connection terminals to be pressed into; a substrate supporting member for supporting the circuit substrate; as well as a fixing member that fixes the circuit substrate to the substrate supporting member, The circuit substrate comprises: a mounting portion for mounting the electronic component; and a supported portion, the supported portion being fixed to the substrate supporting member by the fixing member and supported by the substrate supporting member. The supported portion is disposed between the mounting portion and the terminal hole.

2. The circuit connection device according to claim 1, characterized in that: The circuit substrate further includes a second supported portion supported by the substrate supporting member. The terminal hole is arranged between the supported portion and the second supported portion.

3. The circuit connection device according to claim 2, characterized in that: The substrate supporting member comprises: a supporting portion for supporting the supported portion of the circuit substrate; a second supporting portion supporting the second supported portion of the circuit substrate; as well as a receiving recessed portion, the receiving recessed portion being arranged between the supporting portion and the second supporting portion, and receiving the front end of the connecting terminal pressed into the terminal hole, The housing recess is surrounded by the support portion, the second support portion, and a pair of side portions connecting the support portion and the second support portion.

4. The circuit connection device according to claim 3, characterized in that: The substrate supporting member has an observation hole formed therein, through which a tip of the connection terminal housed in the housing recess can be observed from the outside.

5. The circuit connection device according to any one of claims 2 to 4, characterized in that: The circuit substrate further comprises a second mounting portion for mounting a second electronic component. The second supported portion is disposed between the second mounting portion and the terminal hole.

6. The circuit connection device according to any one of claims 1 to 5, characterized in that: The connection terminal is press-fitted into the terminal hole so as to face downward when the side where the substrate supporting member is located is regarded as a lower side when viewed from the circuit substrate.

7. The circuit connection device according to any one of claims 1 to 5, characterized in that: The connection terminal is press-fitted into the terminal hole so as to face upward when the side where the circuit substrate is located is regarded as an upper side when viewed from the substrate supporting member.

8. The circuit connection device according to any one of claims 1 to 7, characterized in that: The substrate support member is made of metal and is electrically connected to GND. The fixing member is made of metal and is electrically connected to the substrate supporting member. The supported portion has an electrical connection portion formed therein, the electrical connection portion electrically connecting a noise suppression component as the electronic component and the fixing member.

9. The circuit connection device according to any one of claims 1 to 8, characterized in that: The supported portion is arranged at a position overlapping with the connector when viewed in the thickness direction of the circuit substrate.

10. A rotating electrical machine device, characterized in that: include: Rotating electrical machines; as well as A circuit connection device according to any one of claims 1 to 9 for controlling the rotating electrical machine.

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