Connection terminal and motor stator

Abstract

To provide a connection terminal capable of improving efficiency of work for electrically connecting a coil and a lead wire.SOLUTION: A connection terminal 5 comprises: a lead wire connection part 51 which is connected to a lead wire 6; a coil connection part 52 which is connected to an extension line part 32 of a coil 3; and a coupling part 53 which is provided over the lead wire connection part 51 and the coil connection part 52. In the coil connection part 52, a groove 521 for extension lines is formed in which the extension line part 32 is inserted and the extension line part 32 is inserted into the groove 521 for extension lines, such that the extension line part 32 is held by the coil connection part 52.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a connection terminal for electrically connecting a coil and a lead wire to each other, and a motor stator having the connection terminal. [Background technology]

[0002] Conventionally, a connection terminal that electrically connects a coil and a lead wire has been known. The coil includes a winding portion wound around a bobbin and a lead wire portion drawn out from the winding portion. The lead wire portion is wound around the connection terminal and electrically connected to the connection terminal via solder. A lead wire is electrically connected to the connection terminal (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 5-48559 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the configuration of the connection terminal described in Patent Document 1, after the lead wire portion of the coil is wound around the connection terminal, the lead wire portion of the coil is connected to the connection terminal via solder while preventing the lead wire portion from coming off the connection terminal, which poses a problem of inefficiency in the work of electrically connecting the coil and the lead wire.

[0005] The present invention has been made to solve the above-mentioned problems, and its object is to provide a connection terminal and a motor stator that can improve the efficiency of the work of electrically connecting a coil and a lead wire to each other. [Means for solving the problem]

[0006] The connection terminal of this invention comprises a lead wire connection portion connected to the lead wire, a coil connection portion connected to the lead wire portion of the coil, and a connecting portion provided across the lead wire connection portion and the coil connection portion, and a lead wire groove into which the lead wire portion is inserted is formed in the coil connection portion, and the lead wire portion is held in place by the coil connection portion by inserting the lead wire portion into the lead wire groove. In the connection terminal of this invention, the coil connection portion is formed in a U-shape, and the inner surface of the U-shaped coil connection portion becomes the inner surface of the lead-out wire groove, and the lead-out wire portion is held in the coil connection portion by being inserted inside the U-shaped coil connection portion. The motor stator of this invention comprises a stator core, a bobbin provided on the stator core, a coil provided on the stator core via the bobbin, a terminal mounting member provided on the stator core, and a connection terminal attached to the terminal mounting member, the connection terminal having a lead wire connection portion connected to the lead wire, a coil connection portion connected to the lead wire portion of the coil, and a connecting portion provided across the lead wire connection portion and the coil connection portion, the coil connection portion having a lead wire groove formed therein into which the lead wire portion is inserted, and the lead wire portion is held in the coil connection portion by inserting the lead wire portion into the lead wire groove. In the motor stator of this invention, the coil connection portion is formed in a U-shape, and the inner surface of the U-shaped coil connection portion becomes the inner surface of the lead-out wire groove, and the lead-out wire portion is held in the coil connection portion by being inserted inside the U-shaped coil connection portion. The motor stator of this invention comprises a stator core, a bobbin provided on the stator core, a coil provided on the stator core via the bobbin, a terminal mounting member provided on the stator core, and a connection terminal attached to the terminal mounting member, the connection terminal having a lead wire connection portion connected to the lead wire, a coil connection portion connected to the lead wire portion of the coil, and a connecting portion provided across the lead wire connection portion and the coil connection portion, the terminal mounting member having a lead wire groove into which the lead wire portion is inserted, and the lead wire portion is held by the terminal mounting member by inserting the lead wire portion into the lead wire groove. In the motor stator of this invention, the terminal mounting member has a U-shaped portion formed in a U-shape, the inner surface of the U-shaped portion being the inner surface of the lead-out wire groove, and the lead-out wire portion is held in the U-shaped portion by being inserted inside the U-shaped portion. In the motor stator according to the present invention, the lead-out wire portions and the coil connection portions are electrically connected to each other via solder when the lead-out wire portions are inserted into the lead-out wire grooves. In the motor stator of this invention, the connection terminal has a pull-out prevention claw, and the terminal mounting member has a terminal insertion hole into which the lead wire connection portion is inserted, and the terminal mounting member has a claw hook portion on which the pull-out prevention claw catches when the lead wire connection portion is inserted into the terminal insertion hole, and the pull-out prevention claw catches on the claw hook portion, thereby preventing the lead wire connection portion from being pulled out of the terminal insertion hole. In the motor stator of this invention, the terminal mounting member has a pull-out prevention claw, and the terminal mounting member is formed with a terminal insertion hole into which the lead wire connection portion is inserted, and the connection terminal has a claw hook portion on which the pull-out prevention claw catches when the lead wire connection portion is inserted into the terminal insertion hole, and the pull-out prevention claw catches on the claw hook portion, thereby preventing the lead wire connection portion from being pulled out of the terminal insertion hole. In the motor stator of this invention, a terminal extraction groove is formed in the terminal mounting member, which is connected to the terminal insertion hole from the outside of the terminal mounting member, and the coil connection portion is arranged on the outside of the terminal mounting member with the lead wire connection portion inserted into the terminal insertion hole and the connecting portion inserted into the terminal extraction groove. In the motor stator according to the present invention, the bobbin and the terminal mounting member are integrally formed with each other. [Effects of the Invention]

[0007] The connection terminal and motor stator according to the present invention can improve the efficiency of the work of electrically connecting the coil and the lead wire to each other. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a plan view showing a motor stator according to a first embodiment. [Figure 2] FIG. 2 is a front view showing the motor stator of FIG. [Figure 3] FIG. 2 is an enlarged view showing part A in FIG. [Figure 4] FIG. 3 is an enlarged view showing part B in FIG. 2. [Figure 5] FIG. 4 is a plan view showing the connection terminal of FIG. 3. [Figure 6] FIG. 4 is a left side view showing the connection terminal of FIG. 3. [Figure 7] FIG. 4 is a right side view showing the connection terminal of FIG. 3. [Figure 8] FIG. 6 is a left side view showing the connection terminal of FIG. 5. [Figure 9] FIG. 6 is a right side view showing the connection terminal of FIG. 5. [Figure 10] FIG. 10 is a plan view showing a motor stator of a comparative example. [Figure 11] FIG. 11 is a front view showing the motor stator of FIG. [Figure 12] 11 is a diagram illustrating a method for electrically connecting the coil and lead wires of FIG. 10 to each other. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiment 1 Fig. 1 is a plan view showing a motor stator according to embodiment 1. Fig. 2 is a front view showing the motor stator of Fig. 1. The motor stator according to embodiment 1 includes a stator core 1, a bobbin 2, a plurality of coils 3, a terminal mounting member 4, and a plurality of connection terminals 5.

[0010] The stator core 1 includes a core back 11 and a plurality of teeth 12 provided on the core back 11. The core back 11 is formed in an annular shape.

[0011] The direction along the axis of the core back 11 is defined as the axial direction D1. The direction along the radius of a circle centered on the axis of the core back 11 in a plane perpendicular to the axis of the core back 11 is defined as the radial direction D2. The direction along the circumference of a circle centered on the axis of the core back 11 in a plane perpendicular to the axis of the core back 11 is defined as the circumferential direction D3.

[0012] The teeth 12 are arranged in a row in the circumferential direction D3. Specifically, eight teeth 12 are arranged in a row in the circumferential direction D3. Each tooth 12 protrudes inward in the radial direction D2 from the inner peripheral surface of the core back 11. The tip of each tooth 12 faces the motor rotor (not shown).

[0013] The bobbin 2 is provided across the multiple teeth 12. The bobbin 2 surrounds the periphery of each tooth 12. The bobbin 2 includes a first bobbin portion 21 and a second bobbin portion (not shown). The first bobbin portion 21 and the second bobbin portion sandwich the multiple teeth 12 in the axial direction D1. The bobbin 2 is made of insulating resin.

[0014] The coils 3 are provided on each of the teeth 12 via bobbins 2. Therefore, the coils 3 are arranged in a line in the circumferential direction D3. Specifically, eight coils 3 are arranged in a line in the circumferential direction D3.

[0015] Each coil 3 has a winding portion 31 wound around a corresponding tooth 12 via a bobbin 2, and lead-out portions 32 drawn out from the winding portion 31. The lead-out portions 32 are electrically connected one by one to the connection terminals 5. Specifically, eight lead-out portions 32 are electrically connected one by one to six connection terminals 5.

[0016] The terminal mounting member 4 is provided on the first bobbin portion 21 of the bobbin 2. The terminal mounting member 4 is disposed overlapping a surface of the stator core 1 facing one side in the axial direction D1. In Fig. 1 and Fig. 2, the terminal mounting member 4 is disposed on a surface of the stator core 1 facing upward in the axial direction D1.

[0017] The terminal mounting member 4 is made of insulating resin. The terminal mounting member 4 is formed integrally with the first bobbin portion 21 of the bobbin 2. In other words, the first bobbin portion 21 of the bobbin 2 and the terminal mounting member 4 are made of the same material and are a single member that is integrally formed and cannot be disassembled.

[0018] A plurality of terminal insertion holes 41 are formed in a surface of the terminal mounting member 4 facing outward in the radial direction D2. The plurality of terminal insertion holes 41 are arranged in a row along a surface of the stator core 1 facing one side in the axial direction D1.

[0019] A plurality of terminal drawing grooves 42 are formed on a surface of the terminal mounting member 4 facing the axial direction D1, opposite to the stator core 1, and connected to the plurality of terminal insertion holes 41 from the outside of the terminal mounting member 4. The plurality of terminal drawing grooves 42, like the plurality of terminal insertion holes 41, are arranged in a row along the surface of the stator core 1 facing one side in the axial direction D1.

[0020] The plurality of connection terminals 5 are inserted one by one into the plurality of terminal insertion holes 41. Furthermore, while the plurality of connection terminals 5 are inserted into the corresponding terminal insertion holes 41, they are also inserted one by one into the plurality of terminal drawing grooves 42. While inserted into the corresponding terminal insertion hole 41, each connection terminal 5 protrudes from the corresponding terminal drawing groove 42 from the terminal mounting member 4 to one side in the axial direction D1.

[0021] Fig. 3 is an enlarged view showing part A in Fig. 1. Fig. 4 is an enlarged view showing part B in Fig. 2. Fig. 5 is a plan view showing the connection terminal 5 in Fig. 3. Fig. 6 is a left side view showing the connection terminal 5 in Fig. 3. Fig. 7 is a right side view showing the connection terminal 5 in Fig. 3. Fig. 8 is a left side view showing the connection terminal 5 in Fig. 5. Fig. 9 is a right side view showing the connection terminal 5 in Fig. 5.

[0022] The connection terminal 5 is made of a conductor and includes a lead wire connection portion 51, a coil connection portion 52, a linking portion 53, and a disconnection prevention claw .

[0023] A lead wire 6, which is connected to a power supply device (not shown), is connected to the lead wire connection portion 51. The lead wire 6 includes a lead wire resin coating portion 61 in which the conductor of the lead wire 6 is coated with resin, and a lead wire conductor exposed portion 62 provided at the tip of the lead wire resin coating portion 61 and in which the conductor of the lead wire 6 is exposed.

[0024] The lead wire connecting portion 51 includes a resin holding portion 51 a that holds the lead wire resin-coated portion 61 of the lead wire 6 , and a conductor holding portion 51 b that holds the lead wire conductor exposed portion 62 of the lead wire 6 .

[0025] With the lead wire resin coating portion 61 sandwiched between the resin holding portion 51a, the resin holding portion 51a is crimped onto the lead wire resin coating portion 61 using a crimping tool, thereby holding the lead wire resin coating portion 61 in the resin holding portion 51a.

[0026] With the lead wire conductor exposed portion 62 sandwiched between the conductor holding portion 51b, a crimping tool is used to crimp the conductor holding portion 51b to the lead wire conductor exposed portion 62, thereby holding the lead wire conductor exposed portion 62 in the conductor holding portion 51b. With the lead wire conductor exposed portion 62 held by the conductor holding portion 51b, the lead wire 6 is electrically connected to the connection terminal 5.

[0027] Each lead wire connection portion 51 is inserted into a corresponding terminal insertion hole 41 .

[0028] The lead-out wire portion 32 of the coil 3 is connected to the coil connection portion 52. A lead-out wire groove 521 into which the lead-out wire portion 32 is inserted is formed in the coil connection portion 52. The lead-out wire portion 32 is held by the coil connection portion 52 by being inserted into the lead-out wire groove 521.

[0029] Specifically, the coil connection portion 52 is formed in a U-shape. The inner peripheral surface of the U-shaped coil connection portion 52 is the inner peripheral surface of the lead-out wire groove 521. The lead-out wire portion 32 is inserted into the inside of the U-shaped coil connection portion 52, whereby the lead-out wire portion 32 is held by the coil connection portion 52.

[0030] The holding force of the coil connection portion 52 to the lead wire portion 32 is smaller than the holding force of the conductor holding portion 51b to the lead wire conductor exposed portion 62. This is because the wire diameter of the lead wire portion 32 is smaller than the wire diameter of the lead wire conductor exposed portion 62, and the strength of the lead wire portion 32 is smaller than the strength of the lead wire conductor exposed portion 62. With the lead wire portion 32 held by the coil connection portion 52, the lead wire portion 32 and the coil connection portion 52 are electrically connected to each other via solder 7.

[0031] The coil connection portion 52 is provided on a surface of the terminal mounting member 4 facing one side in the axial direction D1. The coil connection portion 52 is disposed on the outer side of the terminal mounting member 4.

[0032] The connecting portion 53 is provided across the lead wire connection portion 51 and the coil connection portion 52. The connecting portion 53 electrically connects the lead wire connection portion 51 and the coil connection portion 52. The connecting portion 53 extends from the terminal insertion hole 41 through the terminal drawing groove 42 to reach the outside of the terminal mounting member 4.

[0033] The anti-slip claws 54 are provided on the lead wire connecting portions 51. The anti-slip claws 54 are inserted into the corresponding terminal insertion holes 41 together with the lead wire connecting portions 51. The anti-slip claws 54 are elastically deformable.

[0034] The terminal mounting member 4 has a hook portion 43. When the lead wire connection portion 51 is inserted into the terminal insertion hole 41, the anti-detachment claw 54 is hooked onto the hook portion 43. The anti-detachment claw 54 is hooked onto the hook portion 43, thereby preventing the lead wire connection portion 51 from being pulled out of the terminal insertion hole 41.

[0035] Specifically, the width dimension at the opening side of terminal insertion hole 41 is smaller than the width dimension at the back side of terminal insertion hole 41. The difference in width dimension between the opening side and the back side of terminal insertion hole 41 forms claw hook portion 43. Therefore, claw hook portion 43 is disposed adjacent to the opening side portion of terminal insertion hole 41.

[0036] The retaining claws 54 are inserted into the terminal insertion holes 41 together with the lead wire connection portions 51. When the retaining claws 54 are inserted into the terminal insertion holes 41, the retaining claws 54 are elastically deformed so that the widthwise dimension of the retaining claws 54 decreases. When the elastically deformed retaining claws 54 reach the innermost portion of the terminal insertion holes 41, the compressive force acting on the retaining claws 54 is released, and the widthwise dimension of the retaining claws 54 increases. This causes the retaining claws 54 to catch on the claw catch portions 43.

[0037] With the lead wire connection portion 51 and the anti-slip claw 54 inserted into the terminal insertion hole 41 and the connecting portion 53 inserted into the terminal pull-out groove 42, the coil connection portion 52 is positioned outside the terminal mounting member 4.

[0038] Next, a procedure for electrically connecting the coil 3 and the lead wire 6 to each other using the connection terminal 5 according to the first embodiment will be described. First, the lead wire 6 is held in the connection terminal 5. The procedure for holding the lead wire 6 in the connection terminal 5 is as follows: first, with the lead wire resin coating portion 61 sandwiched between the resin holding portions 51a, the resin holding portions 51a are crimped to the lead wire resin coating portion 61 using a crimping tool. Then, with the lead wire conductor exposed portion 62 sandwiched between the conductor holding portions 51b, the conductor holding portions 51b are crimped to the lead wire conductor exposed portion 62 using a crimping tool.

[0039] Thereafter, the connection terminal 5 is attached to the terminal attachment member 4. The procedure for attaching the connection terminal 5 to the terminal attachment member 4 is to insert the lead wire connection portion 51 and the anti-detachment claw 54 into the terminal insertion hole 41. The anti-detachment claw 54 is caught on the hook portion 43, thereby preventing the lead wire connection portion 51 from being pulled out of the terminal insertion hole 41.

[0040] Thereafter, the coil 3 is attached to the connection terminal 5. The procedure for attaching the coil 3 to the connection terminal 5 is to first insert the lead-out portion 32 into the inside of the U-shaped coil connection portion 52. This holds the lead-out portion 32 in the coil connection portion 52. Thereafter, the lead-out portion 32 and the coil connection portion 52 are electrically connected to each other via the solder 7. This electrically connects the coil 3 and the connection terminal 5 to each other, and electrically connects the coil 3 and the lead wire 6 to each other. This completes the procedure for electrically connecting the coil 3 and the lead wire 6 to each other using the connection terminal 5 according to the first embodiment.

[0041] Fig. 10 is a plan view showing a motor stator of a comparative example. Fig. 11 is a front view showing the motor stator of Fig. 10. Fig. 12 is a diagram explaining a method for electrically connecting the coil 3 and the lead wire 6 of Fig. 10 to each other. The motor stator of the comparative example does not include the terminal mounting member 4 and the connection terminal 5.

[0042] In the motor stator of the comparative example, the lead wire portion 32 of the coil 3 is wound around the lead wire conductor exposed portion 62 of the lead wire 6. In the motor stator of the comparative example, solder (not shown) is provided across the lead wire conductor exposed portion 62 and the lead wire portion 32 with the lead wire portion 32 wound around the lead wire conductor exposed portion 62. This electrically connects the lead wire conductor exposed portion 62 and the lead wire portion 32 to each other. The motor stator of the comparative example includes an insulating tube 8 that covers the lead wire portion 32 wound around the lead wire conductor exposed portion 62. In the motor stator of the comparative example, the lead wire 6 is fixed to the stator core 1 via an adhesive (not shown).

[0043] In the motor stator of the comparative example, after the lead wire portion 32 is wound around the lead wire conductor exposed portion 62, the worker connects the lead wire portion 32 to the lead wire conductor exposed portion 62 via solder while holding the lead wire portion 32 to prevent it from coming off the lead wire conductor exposed portion 62. This reduces the efficiency of the work of electrically connecting the coil 3 and the lead wire 6 to each other in the motor stator of the comparative example. Also, in the motor stator of the comparative example, the lead wire 6 is fixed to the stator core 1 using an adhesive. This reduces the efficiency of the work of electrically connecting the coil 3 and the lead wire 6 to each other in the motor stator of the comparative example.

[0044] On the other hand, in the motor stator according to the first embodiment, the lead wire portion 32 is inserted into the inside of the U-shaped coil connection portion 52, thereby being held by the coil connection portion 52. As a result, in the motor stator according to the first embodiment, when connecting the lead wire portion 32 to the coil connection portion 52 via the solder 7, the worker does not need to hold the lead wire portion 32 to prevent the lead wire portion 32 from coming off the coil connection portion 52. Furthermore, in the motor stator according to the first embodiment, it is not necessary to fix the lead wire 6 to the stator core 1 via an adhesive. As a result, in the motor stator according to the first embodiment, the efficiency of the work of electrically connecting the coil 3 and the lead wire 6 can be improved.

[0045] As described above, the connection terminal 5 according to the first embodiment includes the lead wire connection portion 51 connected to the lead wire 6, the coil connection portion 52 connected to the lead wire portion 32 of the coil 3, and the linking portion 53 provided across the lead wire connection portion 51 and the coil connection portion 52. The coil connection portion 52 is formed with a lead wire groove 521 into which the lead wire portion 32 is inserted. The lead wire portion 32 is held in the coil connection portion 52 by being inserted into the lead wire groove 521. With this configuration, when connecting the lead wire portion 32 to the coil connection portion 52 via the solder 7, the worker does not need to hold the lead wire portion 32 to prevent it from coming off the coil connection portion 52. As a result, the efficiency of the work of electrically connecting the coil 3 and the lead wire 6 to each other can be improved.

[0046] Furthermore, in the connection terminal 5 according to the first embodiment, the coil connection portion 52 is U-shaped. The inner peripheral surface of the U-shaped coil connection portion 52 is the inner peripheral surface of the lead-out groove 521. The lead-out portion 32 is inserted into the inside of the U-shaped coil connection portion 52, whereby the lead-out portion 32 is held by the coil connection portion 52. With this configuration, the lead-out portion 32 is firmly held by the coil connection portion 52. As a result, the efficiency of the work of electrically connecting the coil 3 and the lead wire 6 to each other can be further improved.

[0047] The motor stator according to the first embodiment includes a stator core 1, a bobbin 2, a coil 3, a terminal mounting member 4, and a connection terminal 5. The bobbin 2 is provided on the stator core 1. The coil 3 is provided on the stator core 1 via the bobbin 2. The terminal mounting member 4 is provided on the stator core 1. The connection terminal 5 is attached to the terminal mounting member 4. The connection terminal 5 has a lead wire connection portion 51 connected to the lead wire 6, a coil connection portion 52 connected to the lead wire portion 32 of the coil 3, and a linking portion 53 provided across the lead wire connection portion 51 and the coil connection portion 52. A lead wire groove 521 into which the lead wire portion 32 is inserted is formed in the coil connection portion 52. The lead wire portion 32 is held by the coil connection portion 52 by being inserted into the lead wire groove 521. According to this configuration, when connecting the lead-out portion 32 to the coil connection portion 52 via the solder 7, the worker does not need to press the lead-out portion 32 to prevent it from coming off the coil connection portion 52. As a result, the efficiency of the work of electrically connecting the coil 3 and the lead wire 6 can be improved.

[0048] Furthermore, in the motor stator according to the first embodiment, the coil connection portion 52 is formed in a U-shape. The inner peripheral surface of the U-shaped coil connection portion 52 is the inner peripheral surface of the lead-out wire groove 521. The lead-out wire portion 32 is inserted into the inside of the U-shaped coil connection portion 52, whereby the lead-out wire portion 32 is held by the coil connection portion 52. With this configuration, the lead-out wire portion 32 is firmly held by the coil connection portion 52. As a result, the efficiency of the work of electrically connecting the coil 3 and the lead wire 6 to each other can be further improved.

[0049] Furthermore, in the motor stator according to embodiment 1, with the lead-out portion 32 inserted into the lead-out groove 521, the lead-out portion 32 and the coil connection portion 52 are electrically connected to each other via the solder 7. This configuration can strengthen the electrical connection between the coil 3 and the lead wire 6.

[0050] Moreover, in the motor stator according to the first embodiment, the connection terminal 5 has a fall-off prevention claw 54. The terminal mounting member 4 is formed with a terminal insertion hole 41 into which the lead wire connection portion 51 is inserted. The terminal mounting member 4 has a claw catch portion 43 on which the fall-off prevention claw 54 catches when the lead wire connection portion 51 is inserted into the terminal insertion hole 41. The fall-off prevention claw 54 catches on the claw catch portion 43, thereby preventing the lead wire connection portion 51 from being pulled out of the terminal insertion hole 41. This configuration enables the connection terminal 5 to be firmly attached to the terminal mounting member 4.

[0051] Furthermore, in the motor stator according to the first embodiment, the terminal mounting member 4 is formed with a terminal drawing groove 42 that is connected to the terminal insertion hole 41 from the outside of the terminal mounting member 4. With the lead wire connection portion 51 inserted into the terminal insertion hole 41 and the linking portion 53 inserted into the terminal drawing groove 42, the coil connection portion 52 is disposed on the outside of the terminal mounting member 4. With this configuration, with the connection terminal 5 attached to the terminal mounting member 4, the draw wire portion 32 can be attached to the coil connection portion 52. This makes it easy to attach the draw wire portion 32 to the coil connection portion 52.

[0052] Furthermore, in the motor stator according to the first embodiment, the bobbin 2 and the terminal mounting member 4 are integrally formed. This configuration makes it possible to omit the step of attaching the terminal mounting member 4 to the bobbin 2. This simplifies the manufacturing process of the motor stator.

[0053] In the motor stator according to the first embodiment, the lead wire grooves 521 into which the lead wire portions 32 are inserted are formed in the coil connection portion 52. However, this configuration is not limited to this. For example, the lead wire grooves into which the lead wire portions 32 are inserted may be formed in the terminal mounting member 4. In this case, the lead wire portions 32 are held in the terminal mounting member 4 by being inserted into the lead wire grooves of the terminal mounting member 4. By holding the lead wire portions 32 in the terminal mounting member 4, when connecting the lead wire portions 32 to the coil connection portion 52 via the solder 7, the worker does not need to hold the lead wire portions 32 to prevent them from coming off the coil connection portion 52. As a result, the efficiency of the work of electrically connecting the coil 3 and the lead wire 6 to each other can be improved. In this case, the terminal mounting member 4 may have a U-shaped portion. In this configuration, the inner surface of the U-shaped portion of the terminal mounting member 4 becomes the inner surface of the lead-out wire groove of the terminal mounting member 4, and the lead-out wire portion 32 is held in the U-shaped portion by being inserted inside the U-shaped portion.

[0054] In the motor stator according to the first embodiment, the connection terminal 5 has the anti-detachment claw 54, and the terminal mounting member 4 has the claw hook portion 43. However, this configuration is not limited to this. For example, the terminal mounting member 4 may have the anti-detachment claw, and the connection terminal 5 may have the claw hook portion. In this case, the anti-detachment claw of the terminal mounting member 4 gets caught on the claw hook portion of the connection terminal 5, thereby preventing the lead wire connection portion 51 from being pulled out of the terminal insertion hole 41. Alternatively, the connection terminal 5 may not have the anti-detachment claw 54, the terminal mounting member 4 may not have the claw hook portion 43, and the connection terminal 5 may be fixed to the terminal mounting member 4 with an adhesive.

[0055] In the connection terminal 5 according to the first embodiment, the coil connection portion 52 has a U-shape, and the inner peripheral surface of the U-shaped coil connection portion 52 forms the inner peripheral surface of the lead-wire groove 521. However, this configuration is not limited to this. For example, a through hole may be formed in the coil connection portion 52, and the inner peripheral surface of the through hole of the coil connection portion 52 forms the inner peripheral surface of the lead-wire groove 521. In this case, the lead-wire portion 32 is held in the coil connection portion 52 by inserting it into the through hole of the coil connection portion 52. Furthermore, in the case where the lead-wire groove is formed in the terminal mounting member 4, for example, a through hole may be formed in the terminal mounting member 4, and the inner peripheral surface of the through hole of the terminal mounting member 4 forms the inner peripheral surface of the lead-wire groove. In this case, the lead-wire portion 32 is held in the terminal mounting member 4 by inserting it into the through hole of the terminal mounting member 4.

[0056] Although the connection terminal and motor stator according to the preferred embodiment 1 have been described above, the present invention is not limited to the connection terminal and motor stator according to the above-described embodiment 1. Various modifications and alterations can be made to the connection terminal and motor stator according to the above-described embodiment 1 without departing from the scope of the claims. [Explanation of symbols]

[0057] 1 stator core, 2 bobbin, 3 coil, 4 terminal mounting member, 5 connection terminal, 6 lead wire, 7 solder, 11 core back, 12 teeth, 21 first bobbin portion, 31 winding portion, 32 lead wire portion, 41 terminal insertion hole, 42 terminal lead groove, 43 claw hook portion, 51 lead wire connection portion, 51a resin holding portion, 51b conductor holding portion, 52 coil connection portion, 53 connecting portion, 54 anti-detachment claw, 61 lead wire resin coating portion, 62 lead wire conductor exposed portion, 521 lead wire groove.

Claims

1. a lead wire connection portion (51) to be connected to the lead wire (6); a coil connection portion (52) connected to the lead wire portion (32) of the coil (3); a connecting portion (53) provided across the lead wire connecting portion (51) and the coil connecting portion (52); Equipped with The coil connection portion (52) is formed with a lead wire groove (521) into which the lead wire portion (32) is inserted, The connection terminal has a lead wire portion (32) that is held by the coil connection portion (52) by being inserted into the lead wire groove (521).

2. The coil connection portion (52) is formed in a U-shape, The inner peripheral surface of the U-shaped coil connection portion (52) is the inner peripheral surface of the lead wire groove (521), 2. The connection terminal according to claim 1, wherein the lead-out portion (32) is held in the coil connection portion (52) by being inserted into the inside of the coil connection portion (52) which is formed in a U-shape.

3. A stator core (1), a bobbin (2) provided on the stator core (1); a coil (3) provided on the stator core (1) via the bobbin (2); a terminal mounting member (4) provided on the stator core (1); A connection terminal (5) attached to the terminal attachment member (4); Equipped with The connection terminal (5) is a lead wire connection portion (51) connected to the lead wire (6); a coil connection portion (52) connected to the lead wire portion (32) of the coil (3); a connecting portion (53) provided across the lead wire connecting portion (51) and the coil connecting portion (52); and The coil connection portion (52) is formed with a lead wire groove (521) into which the lead wire portion (32) is inserted, The motor stator has the lead wire portion (32) held by the coil connection portion (52) by being inserted into the lead wire groove (521).

4. The coil connection portion (52) is formed in a U-shape, The inner peripheral surface of the U-shaped coil connection portion (52) is the inner peripheral surface of the lead wire groove (521), 4. The motor stator according to claim 3, wherein the lead-out portion (32) is held by the coil connection portion (52) by being inserted into the inside of the coil connection portion (52) which is formed in a U-shape.

5. A stator core (1), a bobbin (2) provided on the stator core (1); a coil (3) provided on the stator core (1) via the bobbin (2); a terminal mounting member (4) provided on the stator core (1); A connection terminal (5) attached to the terminal attachment member (4); Equipped with The connection terminal (5) is a lead wire connection portion (51) connected to the lead wire (6); a coil connection portion (52) connected to the lead wire portion (32) of the coil (3); a connecting portion (53) provided across the lead wire connecting portion (51) and the coil connecting portion (52); and The terminal mounting member (4) is formed with a lead-out groove into which the lead-out portion (32) is inserted, The motor stator has the lead wire portion (32) held by the terminal mounting member (4) by being inserted into the lead wire groove.

6. The terminal mounting member (4) has a U-shaped portion formed in a U-shape, The inner peripheral surface of the U-shaped portion is the inner peripheral surface of the lead wire groove, 6. The motor stator according to claim 5, wherein the lead wire portion (32) is inserted into the inside of the U-shaped portion, thereby holding the lead wire portion (32) in the U-shaped portion.

7. 5. The motor stator according to claim 3, wherein the lead-out portion (32) and the coil connection portion (52) are electrically connected to each other via solder (7) when the lead-out portion (32) is inserted into the lead-out groove (521).

8. The connection terminal (5) has a hook (54) for preventing the connection terminal (5) from coming off. The terminal mounting member (4) is formed with a terminal insertion hole (41) into which the lead wire connection portion (51) is inserted, The terminal mounting member (4) has a hook portion (43) on which the anti-detachment hook (54) is hooked when the lead wire connection portion (51) is inserted into the terminal insertion hole (41), A motor stator as described in claim 3 or claim 4, wherein the anti-pullout claw (54) is hooked onto the claw hook portion (43), thereby preventing the lead wire connection portion (51) from being pulled out of the terminal insertion hole (41).

9. The terminal mounting member (4) has a pull-out prevention claw, The terminal mounting member (4) is formed with a terminal insertion hole (41) into which the lead wire connection portion (51) is inserted, The connection terminal (5) has a hook portion on which the anti-detachment claw is hooked when the lead wire connection portion (51) is inserted into the terminal insertion hole (41), 5. A motor stator according to claim 3, wherein the lead wire connection portion (51) is prevented from being pulled out of the terminal insertion hole (41) by the anti-pullout claw being caught on the claw hook portion.

10. The terminal mounting member (4) is formed with a terminal drawing groove (42) that is connected to the terminal insertion hole (41) from the outside of the terminal mounting member (4), 9. The motor stator according to claim 8, wherein the coil connection portion (52) is arranged outside the terminal mounting member (4) with the lead wire connection portion (51) inserted into the terminal insertion hole (41) and the connecting portion (53) inserted into the terminal drawing groove (42).

11. 5. The motor stator according to claim 3, wherein the bobbin and the terminal mounting member are integrally formed.

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