JP5621829B2 - Power supply module - Google Patents

Description

  The present invention relates to a power supply module sealed with an insulator for supplying power to a load.

  A power supply module sealed with an insulator for supplying power to a load is disclosed in, for example, Japanese translations of PCT publication No. 2004-524701 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2011-187819 (Patent Document 2). .

  FIG. 25 is a diagram showing an example of a usage form of a conventional power supply module. The power supply module (inverter module) 20 that supplies power to an electromechanical electric compressor is covered with a cover 11 b that covers the housing 11 a of the drive motor 10. It is the figure which showed typically the assembly | attachment structure to.

  In recent years, an electric compressor in a vehicle air-conditioning system adopts a so-called electro-mechanical integrated structure in which a compressor drive motor and a power supply module that supplies electric power to the drive motor are housed in a set of housings for miniaturization. It is being done.

  As shown in FIG. 25, in the electromechanical integrated electric compressor, a three-phase drive motor 10 for driving the compressor is hermetically housed in a housing 11a in which a refrigerant circulates. For this reason, the power supply to the drive motor 10 is performed via the three airtightly sealed first connector terminals T1 penetrating the housing 11a. As shown in the drawing, a cylindrical male type is usually used for the first connector terminal T1.

  On the other hand, the power supply module 20 that supplies power to the load drive motor 10 is fixed to the heat dissipation member 30 with screws and mounted on the printed circuit board 40, and attached to the cover 11b. The power supply module 20 is sealed with an insulating resin by transfer molding, and a lead frame made of an output terminal or the like protruding from the mold resin is joined to the wiring pattern of the printed circuit board 40 by soldering. A connector 50 having a female second connector terminal 50 a that fits into the first connector terminal T 1 is mounted on the printed circuit board 40, and the output terminal of the power supply module 20 and the connector 50 are connected to the printed circuit board 40. It is electrically connected with a wiring pattern.

  Then, the cover 11b to which the printed circuit board 40 is attached is put on the housing 11a of the drive motor 10, whereby the first connector terminal T1 and the second connector terminal 50a are fitted, and the power supply module 20 and the drive motor 10 are electrically connected. Is done. At the same time, the heat dissipation member 30 contacts the housing 11a.

JP-T-2004-524701 JP 2010-129550 A

  In the connection structure of the power supply module 20 and the drive motor 10 shown in FIG. 25, there are many solder connection points in the power supply line from the power supply module 20 to the load drive motor 10. These solder connection points have high impedance and may become a heat generating part when a large current is applied. In addition, the printed circuit board 40 requires a mounting space for the power supply module 20 and the connector 50 and a wiring space for connecting them, which increases the size.

  Therefore, the present invention provides a power supply module sealed with an insulator for supplying power to a load, and capable of being electrically connected to an arbitrary load without going through a printed circuit board. It is an object.

  The power supply module according to the present invention is a power supply module sealed with an insulator that supplies power to a load, and a second connector terminal that fits into a first connector terminal of the load is exposed from the insulator. It is characterized by being joined to a power supply frame.

  In the power supply module, the second connector terminal fitted into the first connector terminal of the load is exposed from the insulator sealing the power supply module without going through the power supply line such as a printed circuit board. It is directly joined to the power supply frame. Since the second connector terminal is retrofitted to the main body of the power supply module sealed with an insulator and installed outside the insulator, the degree of freedom in selecting the shape according to the first connector terminal of the load is high.

  Accordingly, the power supply module is a power supply module sealed with an insulator that supplies power to the load, and can be electrically connected to an arbitrary load without going through a printed circuit board. It can be.

  The insulator that seals the power supply module may be, for example, a widely used mold resin by transfer molding. However, the power supply module according to the present invention is not limited to this, and may be a power supply module using a ceramic package as a sealing insulator, or a power supply module sealed with resin by potting.

  In the power supply module, the second connector terminal joined to the power supply frame exposed from the insulator includes a joint part joined to the frame, a fitting part fitted to the first connector terminal of the load, and an elastic member. It is preferable that the arm portion is deformable and connects the joint portion and the fitting portion.

  By providing an elastically deformable arm portion between the joint portion and the fitting portion, even if there is a positional deviation or an angular deviation at the time of fitting with respect to the first connector terminal, the elasticity of the arm portion of the second connector terminal is concerned. Can be absorbed by deformation. Therefore, even if there is a positional deviation or an angular deviation during fitting, unscheduled stress is not generated in the joint portion and the fitting portion, and stable electrical connection can be maintained.

  As described above, since the second connector terminal is retrofitted to the power supply module sealed with the insulator and installed outside the insulator, the degree of freedom in shape selection is high. Therefore, the second connector terminal may be a female terminal that has a generally complicated shape with respect to the male terminal.

  In order to manufacture the second connector terminal having the above configuration at low cost, it is preferable that the joint portion, the fitting portion, and the arm portion are integrally formed by bending.

  In the case where the second connector terminal is a female terminal, for example, the fitting portion is composed of four pieces connected at one end, and is formed into a ring-shaped contact piece portion and a cylindrical shape to provide a spring property. It is possible to adopt a structure that is configured with a separate cylindrical spring portion that covers the contact piece portion. According to this, the tangent line (contact beam) with a male 1st connector terminal can be made into 4 lines, and the energization current which can be used can be raised compared with the case where a contact beam is 2 lines.

  Further, when the second connector terminal is a female terminal, the second connector terminal is caught by a part of the insulator when the male first connector terminal is pulled out to limit the displacement of the fitting portion. The hook part is preferably integrally formed.

  When inserting the male first connector terminal, a predetermined portion of the insulator sealing the power supply module is set as a portion that restricts displacement of the fitting portion to be fitted to the first connector terminal. Can do. On the other hand, when the first connector terminal is pulled out, a displacement in the opposite direction to that during insertion occurs in the fitting portion. Therefore, when the first connector terminal is pulled out, it is preferable to provide the hook portion by integral molding so as not to generate excessive stress in the fitting portion, the arm portion, and the joint portion.

  Further, when the second connector terminal is a female terminal, a tapered guide that facilitates the insertion of the male first connector terminal into the insertion end of the first connector terminal of the load in the fitting portion. Is preferably provided.

  In the power supply module having the second connector terminal having the above-described joint portion, fitting portion, and arm portion, in order to avoid inadvertent contact with the second connector terminal, the joint portion, fitting portion, And the terminal cover which covers an arm part may be fixed to the insulator with the screw. Moreover, when a heat radiating member is installed in a power supply module, the terminal cover which covers a junction part, a fitting part, and an arm part may be fixed to the heat radiating member with the screw.

  When the terminal cover is provided and the second connector terminal is a female terminal, the terminal cover is provided with a tapered guide that facilitates insertion of the male first connector terminal. It is preferable to become.

  In the power supply module, the second connector terminal is preferably joined to the frame exposed from the insulator by resistance welding having a high joint strength in a short time.

  When joining the second connector terminal to the frame by resistance welding, for example, a hole for inserting one electrode of resistance welding, the surface opposite to the exposed surface of the frame to which the second connector terminal is joined The exposed welding hole is formed in an insulator. According to this, the exposure from the insulator of the power supply frame for joining the second connector terminals can be minimized.

  In the power supply module, the power supply frame may protrude from the insulator and be exposed. According to this, it becomes easy to join the second connector terminal to the frame.

  As described above, the power supply module is a power supply module sealed with an insulator that supplies power to a load, and can be electrically connected to an arbitrary load without going through a printed circuit board. It can be a power supply module.

  Therefore, in the power supply module, for example, when the load is a drive motor of an electric compressor mounted on an automobile and the power supply module is an inverter module that supplies power to the drive motor, the electro-electric integrated type electric motor Suitable for compressors.

  By using the above power supply module, the printed circuit board is not interposed in the power supply line from the power supply module, so the solder connection point of the power supply line via the conventional printed circuit board and the connector can be eliminated, and the printed circuit board also The size can be greatly reduced.

It is a figure which shows an example of the usage pattern of the electric power supply module which concerns on this invention, and is about the electric power supply module 60 which supplies electric power to an electromechanical-integrated type electric compressor, and the assembly structure to the cover 11d which covers the housing 11c of the drive motor 10 is modeled FIG. FIG. 2 is a diagram illustrating a more specific configuration example of the power supply module 60 illustrated in FIG. 1, in which (a) is a perspective view of the power supply module 61, and (b) and (c) are second connectors, respectively. It is the perspective view from another angle which expanded the circumference | surroundings of terminal T2a. It is a perspective view of main body Ha before joining the 2nd connector terminal T2a. It is the figure which expanded and showed 2nd connector terminal T2a, (a) is a perspective view of the whole 2nd connector terminal T2a, (b)-(e) is a fitting part of (a), respectively. It is the figure which decomposed | disassembled Ka and showed the component. FIG. 9 is a diagram illustrating a modification of the power supply module 61 illustrated in FIG. 2, and (a) and (b) are perspective views of the second connector terminal T <b> 2 b of the power supply module 62 viewed from above and below, respectively. is there. It is the perspective view which expanded and showed 2nd connector terminal T2b used with the electric power supply module 62 of FIG. (A), (b) is the figure which showed the manufacturing process of 2nd connector terminal T2b of FIG. (A)-(d) is the figure which showed the manufacturing process of 2nd connector terminal T2b of FIG. (A), (b) is a figure explaining the welding process to the main body Ha of 2nd connector terminal T2b. (A)-(c) is a figure explaining the welding process to the main body Ha of 2nd connector terminal T2b. (A), (b) is a modification of 2nd connector terminal T2b shown in FIG. 6, respectively, and is a perspective view of 2nd connector terminal T2c, T2d. In the modification of the power supply module 61 shown in FIG. 2, (a) is a perspective view of the power supply module 63 before the terminal cover Ca is attached, and (b) is the power after the terminal cover Ca is attached. 6 is a perspective view of a supply module 63. FIG. Moreover, (c) is the figure which expanded and showed the circumference | surroundings of the insertion hole 7a of the male type | mold 1st connector terminal T1 shown in FIG. 1 formed in the terminal cover Ca. In the modification of the power supply module 61 shown in FIG. 2, (a) is a perspective view of the power supply module 64 viewed from above before fixing the terminal cover Ca, and (b) shows the terminal cover Ca. It is a figure of the state which has arrange | positioned the screw and the nut in order to fix. Moreover, (c) is a perspective view of the power supply module 64 viewed from the back side after fixing the terminal cover Ca by tightening screws and nuts. 12A is a modification of the power supply module 63 shown in FIG. 12, and FIG. 12A is a perspective view of the power supply module 65 in which the heat radiating member 32 is installed before the terminal cover Cb is attached. (B) is a perspective view of the power supply module 64 after the terminal cover Cb is attached. Moreover, (c) is the figure which expanded and showed the circumference | surroundings of the insertion hole 7b of the male type | mold 1st connector terminal T1 shown in FIG. 1 formed in the terminal cover Cb. In another example of the power supply module according to the present invention, (a) is an enlarged perspective view showing the periphery of the second connector terminal T2f of the power supply module 66. FIG. (B) is a perspective view of the main body Hd before joining the second connector terminal T2f. (C) is the perspective view which expanded and showed 2nd connector terminal T2f. (A) is a perspective view of the power supply module 66 in which the heat radiating member 32 is installed in a stage before the terminal cover Cc is attached. (B) is a perspective view of the power supply module 66 after the terminal cover Cc is attached. In another example, (a) is an enlarged perspective view of the second connector terminal T2g of the power supply module 67. (B) is a perspective view of the main body He before joining the second connector terminal T2g. (C) is the perspective view which expanded and showed 2nd connector terminal T2g. (A) is a perspective view of the power supply module 67 in which the heat dissipating member 32 is installed in a stage before attaching the pair of terminal covers Cd and Ce. FIG. 6B is a perspective view of the power supply module 67 after the first terminal cover Cd is disposed. (C) is a perspective view of the power supply module 67 after the second terminal cover Ce is disposed and the pair of terminal covers Cd and Ce are attached. (A) is the perspective view seen from the 1st terminal cover Cd side, and the figure which expanded and showed the circumference | surroundings of the insertion hole of male type | mold 1st connector terminal T1 shown in FIG. 1 formed in the 1st terminal cover Cd. It is. Moreover, (b) is a perspective view seen from the second terminal cover Ce side opposite to (a). In another example, (a) is an enlarged perspective view showing the second connector terminal T2h of the power supply module 68. FIG. (B) is a perspective view of the main body Hf before joining the second connector terminal T2h. (C) is the perspective view which expanded and showed 2nd connector terminal T2h. (A) is a perspective view of the power supply module 68 in which the heat dissipating member 32 is installed in a stage before attaching the pair of terminal covers Cf and Cg. FIG. 6B is a perspective view of the power supply module 68 after the first terminal cover Cf is disposed. (C) is a perspective view of the power supply module 68 after the second terminal cover Cg is disposed and the pair of terminal covers Cf and Cg are attached. It is the perspective view of the power supply module 68 seen from the 2nd terminal cover Cg side (opposite side to the installation surface of the heat radiating member 32). (A) is a perspective view of the power supply module 69 on which the male second connector terminal T2i is mounted. (B) is a perspective view of the main body Hg before joining the second connector terminal T2i. It is the perspective view which expanded and showed 2nd connector terminal T2i, (a), (b) is the figure seen from another angle, respectively. It is a figure which shows an example of the usage pattern of the conventional electric power supply module, and about the electric power supply module 20 which supplies electric power to an electromechanical-integrated electric compressor, the assembly structure to the cover 11b which covers the housing 11a of the drive motor 10 is typically shown FIG.

  The power supply module according to the present invention is a power supply module sealed with an insulator that supplies power to a load, and a second connector terminal that fits into a first connector terminal of the load is exposed from the insulator. The power supply module is joined to a power supply frame.

  Hereinafter, embodiments of a power supply module according to the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating an example of a usage form of a power supply module according to the present invention. A power supply module (inverter module) 60 that supplies power to an electromechanical electric compressor is covered with a housing 11c of a drive motor 10. It is the figure which showed typically the assembly | attachment structure to the cover 11d. In the structure of FIG. 1, the same reference numerals are given to the same parts as those of the structure shown in FIG.

  As described with reference to FIG. 25, in the electromechanical integrated electric compressor of FIG. 1, the three-phase drive motor 10 that drives the compressor is sealed and accommodated in the housing 11c in which the refrigerant circulates. For this reason, power is supplied to the drive motor 10 through the three first connector terminals T1 that are hermetically sealed and penetrate the housing 11c. As shown in the drawing, a cylindrical male type is usually used for the first connector terminal T1.

  On the other hand, the power supply module 60 shown in FIG. 1 differs from the conventional power supply module 20 shown in FIG. 25 in that the second connector terminal T2 that fits into the first connector terminal T1 of the load will be described in detail later. Further, it is joined to a power supply frame exposed from the insulator. Then, the cover 11d to which the power supply module 60 is attached is put on the housing 11c of the drive motor 10, whereby the first connector terminal T1 and the second connector terminal T2 are fitted, and the power supply module 60 and the drive motor 10 are electrically connected. Connected. At the same time, the heat dissipating member 31 fixed to the power supply module 60 contacts the housing 11c.

  In the conventional power supply module 20 shown in FIG. 25, a lead frame made of an output terminal or the like protruding from the mold resin is joined to the wiring pattern of the printed circuit board 40 by soldering. Then, the connector 50 having the female second connector terminal 50a fitted to the first connector terminal T1 is mounted on the printed circuit board 40 together with the power supply module 20, and the cover 11b is put on the housing 11a to supply power. The module 20 and the drive motor 10 were electrically connected. For this reason, in the structure using the conventional power supply module 20 shown in FIG. 25, there are many solder connection points on the power supply line from the power supply module 20 to the drive motor 10 of the load. The point has high impedance and may become a heat generating part when a large current is applied. In addition, the printed circuit board 40 requires a space for mounting the power supply module 20 and the connector 50 and a wiring space for connecting them, resulting in a problem that the printed circuit board 40 becomes large.

  On the other hand, in the power supply module 60 shown in FIG. 1, the second connector terminal T2 fitted to the first connector terminal T1 of the load does not pass through the power supply line such as a printed circuit board. Directly joined to the power supply frame exposed from the insulator sealing 60.

  Therefore, if the power supply module 60 shown in FIG. 1 is used, unlike the structure shown in FIG. 25, the power supply module 60 and the drive motor 10 can be electrically connected without using a printed circuit board. For this reason, the solder connection point of the power supply line in the printed circuit board 40, which was a problem in the structure using the conventional power supply module 20 shown in FIG. 25, can be eliminated. The printed board 41 is also used in the structure of FIG. 1, but the printed board 41 is a small one in which power supply wiring, communication wiring, and the like to the power supply module 60 are formed. Further, since the second connector terminal T2 in the power supply module 60 of FIG. 1 is retrofitted to the main body of the power supply module 60 sealed with an insulator and installed outside the insulator, the first connector terminal T1 of the load There is a high degree of freedom in selecting the shape to match.

  As described above, the power supply module 60 shown in FIG. 1 is a power supply module sealed with an insulator that supplies power to a load, and can be applied to any load without using a printed circuit board. The power supply module can be electrically connected. And if the power supply module 60 shown in FIG. 1 is used, all the problems in the case of using the conventional power supply module 20 described in FIG. 25 can be solved.

  Next, the structure of the power supply module according to the present invention will be described in more detail.

  2 to 4 are diagrams illustrating more specific configuration examples of the power supply module 60 illustrated in FIG. 1, and are diagrams illustrating the power supply module 61 and its components.

  FIG. 2A is a perspective view of the power supply module 61, and FIGS. 2B and 2C are perspective views from different angles, each showing an enlarged view around the second connector terminal T2a. FIG.

  FIG. 3 is a perspective view of the main body Ha before joining the second connector terminal T2a.

  4 is an enlarged view of the second connector terminal T2a, (a) is a perspective view of the entire second connector terminal T2a, and (b) to (e) are respectively ( It is the figure which decomposed | disassembled the fitting part Ka of a) and showed the component.

  The power supply module 61 shown in FIG. 2A is a power supply module sealed with an insulator (mold resin) 1a by transfer molding that supplies power to a load (the drive motor 10 shown in FIG. 1). . In the power supply module 61 of FIG. 2, the power supply in which the female second connector terminal T2a fitted to the male first connector terminal T1 shown in FIG. 1 of the load is exposed from the insulator 1a of the main body Ha. It is joined to the frame 2a. The first connector terminal T1 of the load is inserted into the second connector terminal T2a from above in the drawing, and the first connector terminal T1 and the second connector terminal T2a are fitted.

  As shown in FIG. 3, the main body Ha of the power supply module 61 of the three-phase AC inverter is sealed with an insulator 1 a, and 3 for supplying power corresponding to outputs of the U phase, the V phase, and the W phase, respectively. Two frames 2a are exposed from the insulator 1a. Moreover, the heat sink which consists of another flame | frame etc. is embedded in the insulator 1a, and the heat radiating surface 3 is contacted with the heat radiating member 31 shown in FIG. The power supply and control lead frame 4 is bent in an L shape and is connected to the printed circuit board 41 shown in FIG.

  In addition, the second connector terminal T2a joined to the power supply frame 2a exposed from the insulator 1a of the main body Ha has, as shown in FIG. It consists of a joint part Ka, an arm part Ma, and a hook part Fa. The current conduction path to the load of the second connector terminal T2a shown in FIG. 4A is the first load of the load from the joint Sa joined to the power supply frame 2a of FIG. This is a path to the fitting portion Ka to be fitted to the connector terminal T1.

  As shown in FIG. 2C, the joint portion Sa is a portion that joins the power supply frame 2a exposed from the insulator 1a of the main body Ha, and the projection portion Sa is connected to the joint portion Sa of the second connector terminal T2a. A projection shape for welding is pre-made.

  The fitting portion Ka is a part that fits into the first connector terminal T1 of the load, and has a female structure that fits into the male first connector terminal T1 of the load. Further, the fitting portion Ka of the second connector terminal T2a is composed of four pieces connected at one end shown in FIG. 4 (b), and is formed into a ring-shaped contact piece Ka1 and a cylindrical shape shown in FIG. 4 (c). And is formed of a separate cylindrical spring portion Ka2 that covers the contact piece Ka1. The contact piece Ka1 of FIG. 4B is punched and pressed from a single plate together with the arm part Ma, the joint part Sa, and the hook part Fa, and is rounded by bending to be formed into an annular shape. In FIG.4 (b), the part protruded from the bottom part which has connected the four contact pieces is a part connected with the arm part Ma. As shown in FIG. 4D, the cylindrical spring portion Ka2 in FIG. 4C is placed on the contact piece portion Ka1. Further, with respect to the contact piece portion Ka1 and the cylindrical spring portion Ka2 assembled as shown in FIG. 4D, a resin-made cylindrical guide portion Ka3 shown in FIG. 4E is used as shown in FIG. Covered. The cylindrical guide portion Ka3 is provided with a guide taper guide Ga that facilitates insertion of the male first connector terminal T1 and guides it to the fitting position. Then, by inserting the first connector terminal T1 of the load into the center of the contact piece Ka1, a four-tangent (contact beam) fitting structure is completed. According to this, the energization current which can be used can be raised compared with the case where the contact beam shown later is two lines.

  The arm part Ma is a part that can be elastically deformed and connects the joint part Sa and the fitting part Ka. The arm part Ma has a function of correcting the mutual center position deviation as follows when the fitting part Ka is fitted to the first connector terminal T1 of the load. Since the first connector terminal T1 of the load is fixed, smooth fitting is performed by correcting the position of the fitting portion Ka through elastic deformation of the arm portion Ma. More specifically, when the first connector terminal T1 of the load is inserted into the fitting portion Ka, since the joint portion Sa is welded and fixed, the displacement generated by the position correction of the fitting portion Ka is This is dealt with by elastic deformation of the arm portion Ma. The second connector terminal T2a shown in FIG. 4A is designed in a shape in which the deformation of the arm portion Ma and the hook portion Fa is prioritized over the deformation of the fitting shape of the fitting portion Ka. It is also characterized in that the connection reliability and connection resistance value of Ka are maintained. The shape of the arm portion Ma is determined by the position and shape of the joint portion Sa joined to the power supply frame 2a of FIG. 3, but is basically a shape close to an S shape.

  As described above, by providing the elastically deformable arm portion Ma between the joint portion Sa and the fitting portion Ka, even if there is a positional deviation or an angular deviation at the time of fitting with respect to the first connector terminal T1, It can be absorbed by elastic deformation of the arm portion Ma. Therefore, even if there is a positional deviation or an angular deviation during fitting, unscheduled stress is not generated in the joint portion Sa and the fitting portion Ka of the second connector terminal T2a, and stable electrical connection is maintained. be able to.

  As shown in FIG. 2 (b), the hook portion Fa is caught by a part of the insulator 1a of the main body Ha when the male first connector terminal T1 of the load is pulled out, and the displacement of the fitting portion Ka is changed. This is the site to be restricted. The hook portion Fa of the second connector terminal T2a is integrally formed with the contact piece portion Ka1 of FIG.

  When inserting the male first connector terminal T1, a predetermined portion (pedestal portion Pa) of the insulator 1a sealing the main body Ha of the power supply module 61 shown in FIG. It can be a part which restricts displacement. That is, when the first connector terminal T1 is inserted, the bottom surface of the fitting portion Ka of the second connector terminal T2a in FIG. 4A hits the pedestal portion Pa in FIG. The displacement to is limited. On the other hand, when the first connector terminal T1 is pulled out, a displacement in the opposite direction to that during insertion occurs in the fitting portion Ka. Therefore, without the hook portion Fa in FIG. 4A, there is nothing that restricts the upward displacement of the fitting portion Ka, so the fitting portion Ka, the arm portion Ma, and the joint portion Sa are directed upward. In some cases, a tensile stress is generated, the S-shape of the arm part Ma is unwound, and the arm part Ma loses elastic deformation. Therefore, it is preferable to provide the hook portion Fa by integral molding so as not to generate excessive stress in the fitting portion Ka, the arm portion Ma, and the joint portion Sa when the first connector terminal T1 is pulled out.

  FIG. 5 is a diagram showing a modification of the power supply module 61 shown in FIG. 2, and (a) and (b) are views around the second connector terminal T <b> 2 b of the power supply module 62 from above and below, respectively. FIG. The power supply module 62 of FIG. 5 uses the same main body Ha of FIG. 3 as the power supply module 61 of FIG. 2, and only the second connector terminal T2b joined to the power supply frame 2a is shown in FIG. Different from the power supply module 61.

  FIG. 6 is an enlarged perspective view of the second connector terminal T2b used in the power supply module 62 of FIG.

  The power supply module 62 shown in FIG. 5 is a power supply module sealed with an insulator (mold resin) 1a by transfer molding that supplies power to a load (the drive motor 10 shown in FIG. 1). In the power supply module 62 of FIG. 5, the power supply in which the female second connector terminal T2b fitted to the male first connector terminal T1 shown in FIG. 1 of the load is exposed from the insulator 1a of the main body Ha. It is joined to the frame 2a. The first connector terminal T1 of the load is inserted into the second connector terminal T2b from above in FIG. 5A, and the first connector terminal T1 and the second connector terminal T2b are fitted.

  As will be described in detail later, the second connector terminal T2b is joined to the power supply frame 2a exposed from the insulator 1a by resistance welding. For this reason, as shown in FIG. 5B, a welding hole 5 for inserting one electrode of resistance welding is provided on the opposite surface of the main body Ha to a minimum size necessary for inserting the electrode. Now, the insulator 2a is formed so as to expose the surface of the frame 2a opposite to the exposed surface of FIG.

  As shown in FIG. 6, the second connector terminal T2b includes a joint portion Sa, a fitting portion Kb, an arm portion Ma, and a hook portion Fa. The second connector terminal T2b shown in FIG. 6 has the same joint part Sa, arm part Ma, and hook part Fa as the second connector terminal T2a shown in FIG. 4, and only the configuration of the fitting part Kb is shown in FIG. 4 is different from the fitting portion Ka of the second connector terminal T2a.

  The fitting portion Ka of the second connector terminal T2a shown in FIG. 4 is composed of four pieces connected at one end of FIG. 4 (b). The contact piece portion Ka1 is formed in an annular shape, and the cylindrical portion of FIG. 4 (c). It has a spring property and is formed of a separate cylindrical spring portion Ka2 that covers the contact piece, and has a four-tangent fitting structure. On the other hand, the fitting portion Kb in the second connector terminal T2b of FIG. 6 has a two-tangent fitting structure, and can be energized basically up to about half the current of four tangents. In the second connector terminal T2b shown in FIG. 6, the contact resistance is reduced and the energization current can be increased by lengthening the fitting portion Kb in contact with the first connector terminal T1.

  The second connector terminal T2b in FIG. 6 differs from the second connector terminal T2a in FIG. 4 in that the entire joint portion Sa, fitting portion Kb, arm portion Ma, and hook portion Fa are bent as shown below. It is integrally molded with. Therefore, the second connector terminal T2b in FIG. 6 can be manufactured at a lower cost than the second connector terminal T2a in FIG.

  FIGS. 7A and 7B and FIGS. 8A to 8D are views showing a manufacturing process of the second connector terminal T2b of FIG. The second connector terminal T2b of FIG. 6 is formed from one of the Sn-plated copper alloy plates punched and pressed into the developed shape shown in FIG. 7A through subsequent bending processes.

  First, as shown in FIG. 7A, the base material of the second connector terminal T2b is punched into the shape shown in the drawing. Next, bending is performed in the direction of the arrow in the figure, and the fitting portion is primarily formed.

  FIG.7 (b) is the state by which the said fitting part was primary-molded. Next, bending is performed in the direction of the arrow in the figure, and the arm portion Ma is bent by 90 °.

  FIG. 8A is a view of the state in which the arm portion Ma is formed as seen from another direction. Next, bending is performed in the direction of the arrow in the figure, and the fitting portion is finally formed.

  FIG. 8B shows a state where the fitting portion Kb is molded. Next, bending is performed in the direction of the arrow in the figure, and the joint is bent 90 °.

  FIG. 8C shows a state where the joint portion Sa is formed. Next, it is bent in the direction of the arrow in the figure, and the hook portion is bent.

  FIG. 8D shows a state in which the hook portion Fa is molded. Thus, the molding is completed and the second connector terminal T2b shown in FIG. 6 is manufactured.

  FIGS. 9A and 9B and FIGS. 10A to 10C are diagrams illustrating a process of welding the second connector terminal T2b to the main body Ha.

9 (a) and 9 (b) are diagrams showing a process of arranging the second connector terminal T2b on the main body Ha. First,
As shown in FIG. 9A, the second connector terminal T2b is inserted and aligned in the direction of the arrow with respect to the main body Ha, and set on the pedestal portion Pa.

  FIG. 9B shows a state in which the second connector terminal T2b is set on the pedestal portion Pa. In this state, in order that the hook portion Fa is hooked on a part of the insulator 1a of the main body Ha, the joint portion Sa is placed on a predetermined position of the power supply frame 2a exposed from the insulator 1a. Two connector terminals T2b are arranged.

  FIGS. 10A to 10C are views showing a welding process of the second connector terminal T2b by resistance welding.

  As shown in FIG. 10A, one of the two welding electrodes 70 and 71 has a tip at the position of a projection (protrusion) formed at the joint Sa of the second connector terminal T2b. Set to press. As shown in FIG. 10A, the other welding electrode 71 is set so that the front end presses the back surface of the frame 2a exposed from the welding hole 5 provided on the back surface side of the main body Ha. Then, as shown in FIG. 10 (c), the welding portion Sa and the frame 2a of the second connector terminal T2b are sandwiched from both sides by the two welding electrodes 70 and 71, and the surface and the joining portion of the frame 2a which is a welded joint portion. A large current is passed through the contact portion of Sa. Thus, the contact portion is heated and melted by the resistance heat generated in the contact portion, and the frame 2a and the second connector terminal T2b are welded.

  In the power supply module according to the present invention, the joining of the second connector terminal to the frame exposed from the insulator is preferably resistance welding having a high joining strength in a short time as shown in FIG. However, the present invention is not limited to this, and another joining method such as soldering may be used.

  Further, when the second connector terminal is joined to the frame by resistance welding, as shown in FIG. 10B, the side opposite to the exposed surface of the frame 2a to which the joining portion Sa of the second connector terminal T2b is joined. It is assumed that a welding hole 5 exposing the surface is formed in the insulator 1a. According to this, the exposure from the insulator 1a of the power supply frame 2a for joining the second connector terminal T2b can be minimized. However, the present invention is not limited to this, and it is also possible to adopt another structure, which will be described later, in which the two welding electrodes 70 and 71 can be easily set by changing the exposure form of the power supply frame from the power supply module body. is there.

  Next, various modifications of the power supply module according to the present invention will be described.

  FIGS. 11A and 11B are perspective views of the second connector terminals T2c and T2d, respectively, which are modifications of the second connector terminal T2b shown in FIG.

  Like the second connector terminal T2a of FIG. 4 illustrated above, the female second connector terminal has a tapered shape that facilitates insertion of the male first connector terminal of the load and leads it to the fitting position. A guide is preferably provided. Therefore, the second connector terminals T2c and T2d in FIGS. 11A and 11B are added to the structure of the female second connector terminal T2b shown in FIG. Guide taper-shaped guides Gc and Gd are provided that facilitate the insertion of the first connector terminal T1 of the mold and guide it to the fitting position. In the second connector terminal T2c in FIG. 11A, a guide Gc is integrally formed at the insertion end of the first connector terminal T1 in the fitting portion Kc. Further, in the second connector terminal T2d of FIG. 11B, a separate guide Gd is provided at the insertion end of the first connector terminal T1 in the fitting portion Kd.

  As described above, when the second connector terminal of the power supply module to be fitted to the first connector terminal of the load is a female type, the male first is inserted at the insertion end of the first connector terminal in the fitting portion. It is preferable that a tapered guide is provided to facilitate insertion of the connector terminal.

  Next, in the power supply module having the second connector terminal having the above-described joint portion, fitting portion, and arm portion, a terminal cover is used in order to avoid inadvertent contact with the second connector terminal. May be.

  FIGS. 12 and 13 are diagrams showing power supply modules 63 and 64 each having a terminal cover Ca, which are modifications of the power supply module 61 shown in FIG. 2.

  12A is a perspective view of the power supply module 63 before the terminal cover Ca is attached, and FIG. 12B is a perspective view of the power supply module 63 after the terminal cover Ca is attached. FIG. 12C is an enlarged view of the periphery of the insertion hole 7a of the male first connector terminal T1 shown in FIG. 1 formed in the terminal cover Ca.

  FIG. 13A is a perspective view of the power supply module 64 as viewed from above before fixing the terminal cover Ca, and FIG. 13B shows a screw and a nut for fixing the terminal cover Ca. It is a figure of the state which has arrange | positioned. FIG. 13C is a perspective view of the power supply module 64 as viewed from the back side after the terminal cover Ca is fixed by tightening screws and nuts.

  The main body Hb of the power supply module 63 shown in FIG. 12A is the same as the main body Ha of the power supply module 61 shown in FIG. 2, but the screw hole 6a for attaching the terminal cover Ca seals the whole. It is additionally formed on the insulator (mold resin) 1a. On the other hand, unlike the second connector terminal T2a of the power supply module 61 shown in FIG. 2, the second connector terminal T2e of the power supply module 63 shown in FIG. 12A adopts a configuration in which the hook portion Fa is not provided. ing.

As shown in FIG. 12B, the terminal cover Ca is fixed to the insulator 1a with screws Na so as to cover the joint portion, fitting portion, and arm portion of the second connector terminal T2e.
When the terminal cover Ca is used for a request for insulation or the like, the terminal cover Ca restricts the upward displacement of the fitting portion when the load-side first connector terminal T1 is detached. For this reason, as shown in FIG. 12A, the first connector terminal T1 on the load side can be smoothly detached even with the second connector terminal T2e not provided with the hook portion Fa.

  As shown in FIG. 12 (c), on the upper surface of the terminal cover Ca, a guide taper guide Gb for facilitating the insertion of the male first connector terminal T1 is provided at the insertion end of the insertion hole 7a. Thus, the first connector terminal T1 and the second connector terminal T2e are easily fitted.

  In the power supply module 63 of FIG. 12, the screw hole 6a is formed in the insulator 1a of the main body Hb, and the terminal cover Ca is fixed to the main body Hb with screws Na. On the other hand, the power supply module 64 of FIG. 13 has a structure in which the terminal cover Ca is fixed to the main body Hc with screws Nb and nuts Nc.

  As shown in FIG. 13A, a through hole 6b is formed in the insulator 1a of the main body Hc, and a coaxial through hole 6c is also formed in the terminal cover Ca. Then, as shown in FIG. 13 (b), the screw Nb is passed through the through holes 6b and 6c and fixed so as to be sandwiched between nuts Nc arranged on the opposite side as shown in FIG. 13 (c). The nut Nc may be replaced with a metal plate with a screw tap.

  In the power supply module according to the present invention having the second connector terminal composed of the joint portion, the fitting portion, and the arm portion as in the power supply modules 63 and 64 illustrated in FIGS. 12 and 13 above. In order to avoid inadvertent contact with the second connector terminal, a terminal cover covering the joint portion, the fitting portion, and the arm portion is fixed to the insulator sealing the main body of the power supply module with a screw. It may be.

  FIG. 14 is a diagram showing a power supply module 65 having a terminal cover Cb as a modification of the power supply module 63 shown in FIG.

  FIG. 14A is a perspective view of the power supply module 65 in which the heat radiating member 32 is installed in the stage before the terminal cover Cb is attached. FIG. 14B is a perspective view of the power supply module 64 after the terminal cover Cb is attached. FIG. 14C is an enlarged view around the insertion hole 7b of the male first connector terminal T1 shown in FIG. 1 formed in the terminal cover Cb.

  In the power supply module 63 of FIG. 12, the screw hole 6a is formed in the insulator 1a of the main body Hb, and the terminal cover Ca is fixed to the main body Hb with screws Na. On the other hand, in the power supply module 65 of FIG. 14, the terminal cover Cb that covers the joint portion, the fitting portion, and the arm portion of the second connector terminal T <b> 2 e is attached to the heat radiation member 32 installed in the main body Ha with the screw Nd It is a structure fixed by.

  When it is difficult to screw onto the insulator (mold resin) 1a, as shown in FIG. 14A, the heat dissipating member 32 is connected to the hole 6d for assembling to the cover 11d shown in FIG. A screw hole 6f for attaching the terminal cover Cb is formed together with the attaching screw hole 6e, and the terminal cover Cb is attached to the heat radiating member 32 using screws Nd as shown in FIG.

  As shown in FIG. 14 (c), the terminal cover Cb is provided with a guide tapered guide Gb similar to that provided in the terminal cover Ca in FIG. 12 at the insertion end of the insertion hole 7b. The first connector terminal T1 and the female second connector terminal T2e are easily fitted.

  15 and 16 are diagrams showing a power supply module 66 as another example of the power supply module according to the present invention.

  FIG. 15A is an enlarged perspective view showing the periphery of the second connector terminal T2f of the power supply module 66. FIG. FIG. 15B is a perspective view of the main body Hd before the second connector terminal T2f is joined. FIG. 15C is an enlarged perspective view of the second connector terminal T2f.

  FIG. 16A is a perspective view of the power supply module 66 in which the heat radiating member 32 is installed before the terminal cover Cc is attached. FIG. 16B is a perspective view of the power supply module 66 after the terminal cover Cc is attached.

  The power supply module 66 shown in FIGS. 15 and 16 has a structure in which the welding operation of the second connector terminal T2f is easier than the power supply modules 61 to 65 described above.

  In the power supply modules 61 to 65 described above, the power supply frame 2a that is the mating partner of the second connector terminals T2a to T2e is exposed in a state of being retracted from the insulator 1a constituting the upper and lower surfaces and side surfaces of the main body Ha. It was. On the other hand, in the power supply module 66 shown in FIG. 15 and FIG. 16, in order to facilitate the joining of the second connector terminal to the frame, as shown in FIG. It is exposed in a state protruding from the insulator 1a constituting the side surface of the main body Hd.

  The second connector terminal T2f to be joined to the frame 2b is composed of a joining part Sb, a fitting part Ka, and an arm part Mb having the shape shown in FIG. The fitting portion Ka has the same structure as the second connector terminal T2a shown in FIG. Further, a projection (protrusion) is provided in the joint portion Sb.

  As shown in FIG. 15A, in the state where the second connector terminal T2f is disposed on the main body Hd, the joining portion Sb between the frame 2b protruding from the insulator 1a and the second connector terminal T2f is provided from both sides in the vertical direction. Insert between welding electrodes. And a big electric current is sent and the junction part Sb of the flame | frame 2b and 2nd connector terminal T2f is welded.

  Then, as shown in FIGS. 16A and 16B, in the power supply module 66, the terminal cover Cc is radiated using screws Nd in the same manner as the terminal cover Cb of the power supply module 65 shown in FIG. It is attached to the member 32. Note that the terminal cover Cc shown in FIG. 16B is provided with a guide taper guide Gb at the insertion end of the insertion hole 7c, so that the male first connector terminal T1 and the female second connector terminal. T2f can be easily fitted.

  In the power supply module 66, as shown in FIG. 15A, when inserting the male first connector terminal T1 of the load, the insulator 1a sealing the main body Hd of the power supply module 66 is used. The upper surface is a part that regulates the downward displacement generated in the fitting portion Ka of the second connector terminal T2f. On the other hand, when the first connector terminal T1 is detached, the upward displacement generated in the fitting portion Ka of the second connector terminal T2f is restricted by the terminal cover Cc shown in FIG. Note that the upward displacement of the fitting portion Ka that occurs when the first connector terminal T1 is detached is formed by integrally forming a hook portion with the fitting portion Ka as in the second connector terminal T2a shown in FIG. You may make it regulate.

  As shown in FIG. 16, the power supply module 66 has a structure in which the second connector terminal T <b> 2 f and the terminal cover Cc protrude toward the installation side of the heat dissipation member 32. Further, when the load first connector terminal T1 is inserted, stress is generated on the main body Hd, and when the first connector terminal T1 is pulled out, stress is generated on the terminal cover Cc.

  Next, an example of an applicable power supply module even when the protrusion of the second connector terminal to the installation side of the heat dissipating member 32 described above is not allowed or when the generation of stress on the main body of the power supply module is not allowed. Show.

  FIGS. 17-19 is a figure which shows the power supply module 67 in said example.

  FIG. 17A is an enlarged perspective view showing the second connector terminal T <b> 2 g of the power supply module 67. FIG. 17B is a perspective view of the main body He before joining the second connector terminal T2g. FIG. 17C is an enlarged perspective view of the second connector terminal T2g.

  FIG. 18A is a perspective view of the power supply module 67 in which the heat dissipating member 32 is installed in a stage before attaching the pair of terminal covers Cd and Ce. FIG. 18B is a perspective view of the power supply module 67 after the first terminal cover Cd is arranged. FIG. 18C is a perspective view of the power supply module 67 after the second terminal cover Ce is disposed and the pair of terminal covers Cd and Ce are attached.

  FIG. 19A is a perspective view seen from the first terminal cover Cd side (the installation surface side of the heat dissipation member 32) of the male first connector terminal T1 shown in FIG. 1 formed on the first terminal cover Cd. It is the figure which expanded and showed the circumference of the insertion hole. FIG. 19B is a perspective view as viewed from the second terminal cover Ce side opposite to FIG.

  In the power supply module 67 shown in FIGS. 17 to 19, the power supply frame 2 c protruding in a strip shape from the insulator 1 a is connected to the heat radiation surface 3 at the base portion of the strip as shown in FIG. It is bent in the opposite direction and is exposed in a state of protruding downward from the insulator 1a constituting the lower surface of the main body He.

  The second connector terminal T2g to be joined to the frame 2c is composed of a joining part Sc, a fitting part Ka, and an arm part Mc having the shape shown in FIG. The fitting portion Ka has the same structure as the second connector terminal T2a shown in FIG. In addition, a projection (protrusion) is provided at the joint Sc.

  As shown in FIG. 17A, in a state where the second connector terminal T2g is arranged on the main body He, the frame 2c protruding from the joint Sc of the second connector terminal T2g and the insulator 1a is provided from both sides in the front-rear direction. Insert between welding electrodes. And a big electric current is sent, and the junction part Sc of the flame | frame 2c and 2nd connector terminal T2g is welded.

  As shown in FIGS. 18 and 19, in the power supply module 67, a set of terminal covers Cd and Ce is attached to the heat radiating member 32 using the screws Ne shown in FIG. The main body He and the heat radiating member 32 are also fixed with screws Nf.

  In the power supply module 67, a set of terminals shown in FIG. 18 (c) is used to restrict displacement generated in the fitting portion Ka of the second connector terminal T2g when the male first connector terminal T1 of the load is inserted and removed. Covers Cd and Ce are required. As shown in FIG. 18A, a heat radiating member 32 similar to that in FIG. 16 is attached, and the first terminal cover Cd shown in FIG. 18B and the second terminal cover Ce in FIG. Is provided. As shown in FIG. 19 (a), the first terminal cover Cd is provided with a guide taper guide Gb at the insertion end of the insertion hole 7d, so that the male first connector terminal T1 and the female terminal are provided. The second connector terminal T2f can be easily fitted.

  20-22 is a figure which shows the electric power supply module 68 in another example.

  FIG. 20A is a perspective view showing the second connector terminal T2h of the power supply module 68 in an enlarged manner. FIG. 20B is a perspective view of the main body Hf before the second connector terminal T2h is joined. FIG. 20C is an enlarged perspective view of the second connector terminal T2h.

  FIG. 21A is a perspective view of the power supply module 68 in which the heat dissipating member 32 is installed in a stage before attaching the pair of terminal covers Cf and Cg. FIG. 21B is a perspective view of the power supply module 68 after the first terminal cover Cf is arranged. FIG. 21C is a perspective view of the power supply module 68 after the second terminal cover Cg is disposed and the pair of terminal covers Cf and Cg are attached.

  FIG. 22 is a perspective view of the power supply module 68 viewed from the second terminal cover Cg side (the side opposite to the installation surface of the heat dissipation member 32).

  In the power supply module 68 shown in FIGS. 20 to 22, the power supply frame 2 d protruding in an L shape from the insulator 1 a has a base portion of the tip side of the L shape as shown in FIG. And is exposed in a state protruding downward from the insulator 1a constituting the lower surface of the main body Hf.

  The second connector terminal T2h joined to the frame 2d is composed of a joining part Sd, a fitting part Ka, and an arm part Mc having the shape shown in FIG. The fitting portion Ka and the arm portion Mc have the same structure as the second connector terminal T2g shown in FIG.

  In the state where the second connector terminal T2h is arranged in the main body Hf as shown in FIG. 20A, two joints Sd of the second connector terminal T2h and two frames 2d protruding from the insulator 1a are provided from both sides in the left-right direction. Insert between welding electrodes. Then, a large current is applied to weld the joint Sd between the frame 2d and the second connector terminal T2h.

  Even in the power supply module 68, a set of terminals shown in FIG. 21 (c) is used to regulate the displacement generated in the fitting portion Ka of the second connector terminal T2h when the male first connector terminal T1 of the load is inserted and removed. Covers Cf and Cg are required. As shown in FIG. 21 (a), the heat radiating member 32 is attached to the main body Hf, and the first terminal cover Cf shown in FIG. 21 (b) and the second terminal cover Cg of FIG. To do. And as shown in FIG. 22, one set of terminal covers Cf and Cg is being fixed to the heat radiating member 32 using the screw Ng.

  Next, in the examples of the power supply modules 60 to 68 described above, the second connector terminals T2 and T2a to T2h joined to the power supply frames 2a to 2d are female terminals. . As described above, in the power supply module according to the present invention, the second connector terminal is retrofitted to the main body of the power supply module sealed with an insulator and installed outside the insulator. High degree. Therefore, the second connector terminal may be a female terminal that has a generally complicated shape with respect to the male terminal. However, the present invention is not limited to this, and when the first connector terminal of the load is a female type, the male second connector terminal is joined to the power supply frame in the power supply module of the present invention.

  FIG. 23 and FIG. 24 are diagrams showing an example of the case where the above-described male second connector terminal is mounted, and shows the power supply module 69.

  FIG. 23A is a perspective view of the power supply module 69 on which the male second connector terminal T2i is mounted. FIG. 23B is a perspective view of the main body Hg before joining the second connector terminal T2i.

  FIG. 24 is an enlarged perspective view of the second connector terminal T2i, and (a) and (b) are views seen from different angles.

  In the power supply module 69 shown in FIG. 23A, a power supply frame in which the male second connector terminal T2i fitted to the first connector terminal of the female load is exposed from the insulator 1a of the main body Hg. 2a.

  The main body Hg of the power supply module 69 shown in FIG. 23B is substantially the same as the main body Ha shown in FIG. 3 of the power supply modules 61 and 62 on which the female second connector terminals T2a and T2b are mounted. The shape of the pedestal Pb on which the second connector terminal T2i is placed is only slightly different.

  As shown in FIG. 24, the male second connector terminal T2i joined to the frame 2a includes a joining portion Sa, a fitting portion Ke, an arm portion Ma, and a hook portion Fa. Except for the fitting portion Ke, the female second connector terminals T2a and T2b shown in FIGS. 4 and 6 have the same structure. The fitting portion Ke of the second connector terminal T2i is the same as the second connector terminal T2b shown in FIG. 6, is integrally formed with the joint portion Sa, the arm portion Ma, and the hook portion Fa, and is cylindrically shaped by bending. It is molded into. The outer surface of the cylindrical fitting portion Ke is fitted to the first connector terminal of the female load. Instead of the cylindrical fitting portion Ke, a columnar fitting portion may be provided separately.

  As described above, the above-described power supply module according to the present invention is a power supply module sealed with an insulator that supplies power to a load, and can be applied to any load without a printed circuit board. It is a power supply module that can be electrically connected.

  Therefore, the electric power supply module is, for example, a motor for driving an electric compressor mounted on an automobile, and the electric power supply module is an electric / electrically integrated electric motor when the electric power supply module is an inverter module that supplies electric power to the drive motor. Suitable for compressors.

  By using the above power supply module, the printed circuit board is not interposed in the power supply line from the power supply module, so the solder connection point of the power supply line via the conventional printed circuit board and the connector can be eliminated, and the printed circuit board also The size can be greatly reduced.

  In the examples of the power supply modules 60 to 69 shown above, the insulator 1a sealing the main bodies Ha to Hg is a mold resin by transfer molding. For the insulator 1a sealing the power supply module, a mold resin by transfer molding is widely used. However, the power supply module according to the present invention is not limited to this, and may be a power supply module using a ceramic package as a sealing insulator, or a power supply module sealed with resin by potting.

20, 60-69 Power supply module Ha-Hg Body 1a Insulator (mold resin)
2a to 2d (for power supply) T2, T2a to T2i Second connector terminal Sa to Sd Joint portion Ka to Ke Fitting portion Ma to Mc Arm portion Fa Hook portion Ca to Cg Terminal cover 30 to 32 Heat radiation member

Claims (15)

A power supply module (60 to 69) sealed with an insulator (1a) for supplying power to a load,
The second connector terminals (T2a to T2i) fitted to the first connector terminals (T1) of the load are joined to the power supply frames (2a to 2d) exposed from the insulator. Power supply module.   The power supply module according to claim 1, wherein the insulator is a mold resin. The second connector terminal is
Joining portions (Sa to Sd) joined to the frame, fitting portions (Ka to Ke) fitted to the first connector terminals, and arm portions (which can be elastically deformed and connect the joining portions and the fitting portions) Ma to Mc), and the power supply module according to claim 1 or 2.   The power supply module according to claim 3, wherein the second connector terminals (T2a to T2h) are female terminals.   The power supply module according to claim 3 or 4, wherein the joint portion (Sa), the fitting portion (Kb, Kc, Ke), and the arm portion (Ma) are integrally formed by bending. . The fitting portion (Ka) is
It consists of four pieces connected at one end, and a contact piece part (Ka1) formed into an annular shape,
5. The power supply module according to claim 4, wherein the power supply module is formed of a cylindrical spring part (Ka <b> 2) that is formed in a cylindrical shape and has a spring property, and covers the contact piece part.   When the male first connector terminal is pulled out, the hook part (Fa) is formed on the second connector terminal so as to be hooked on a part of the insulator and restrict the displacement of the fitting part. The power supply module according to claim 4 or 6.   A taper-shaped guide (Ga, Gc, Gd) that facilitates insertion of the first connector terminal is provided at the insertion end of the male first connector terminal in the fitting portion. The power supply module according to claim 4.   The power supply according to any one of claims 3 to 8, wherein a terminal cover (Ca) covering the joint portion, the fitting portion, and the arm portion is fixed to the insulator with a screw. module. A heat dissipation member (30 to 32) is installed in the power supply module,
The terminal cover (Cb to Cf) that covers the joint portion, the fitting portion, and the arm portion is fixed to the heat radiating member with a screw, according to any one of claims 3 to 8. Power supply module. The second connector terminal is a female terminal;
The taper-shaped guide (Gb) for facilitating insertion of the male first connector terminal is provided on the terminal cover (Ca to Cd, Cf). The power supply module described.   The power supply module according to claim 1, wherein the joining is resistance welding.   A hole for inserting one electrode of the resistance welding, the welding hole (5) exposing the surface opposite to the exposed surface of the frame to which the second connector terminal is joined, is the insulator. The power supply module according to claim 12, wherein the power supply module is formed.   The power supply module according to any one of claims 1 to 12, wherein the frame (2b to 2d) protrudes from the insulator and is exposed. The load is a drive motor (10) of an electric compressor mounted on an automobile,
The power supply module according to claim 1, wherein the power supply module is an inverter module that supplies power to the drive motor.

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