Wiring component with physical quantity sensor

Abstract

To provide a wiring component with a physical quantity sensor with which, while holding the physical quantity sensor by a mold material covering longitudinal part of the electric wire to be detected, it is possible to prevent the physical quantity sensor from being damaged by heat from the mold material when it is formed.SOLUTION: A wiring component 1 with a physical quantity sensor comprises: a first to a third electric wire 11-13; a physical quantity sensor 2 for detecting the physical quantity of the first to third electric wires 11-13; a holding member 5 composed of a mold material covering longitudinal parts of the first to third electric wires 11-13, in which a holding hole 50 for holding the physical quantity sensor 2 is formed; and an attachment member 6 which is attached to the holding member 5. The attachment member 6 is provided with a tongue piece 601 for electrically pressing the physical quantity sensor 2 against a pressed surface 50a on the electric wire side of the holding hole 50, and a locking protrusion 602 for locking the physical quantity sensor 2 in place.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a wiring component equipped with a physical quantity sensor that detects the physical quantity of an electric wire. [Background technology]

[0002] Conventionally, for example, the temperature of an electric wire through which an excitation current of a stator winding of a motor flows is detected by a temperature sensor to prevent the occurrence of damage due to overheating of the stator winding. The electric wire to be detected generates heat due to Joule heat (copper loss) caused by the current flowing through the electric wire, and the temperature also rises due to thermal conduction from the motor.

[0003] Patent Document 1 describes a rotating electric machine in which the neutral wire of a three-phase motor is bent into a U-shape outside a stator core, and a temperature sensor is disposed in the arc-shaped bottom part of the U. The temperature sensor is embedded in a resin molding material together with the U-shaped bent part of the neutral wire. The molding material is formed by insert molding, in which a mold is disposed so as to surround the temperature sensor and the U-shaped part of the neutral wire, and liquid molten resin is injected into the mold and hardened. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5621810 Summary of the Invention [Problem to be solved by the invention]

[0005] In the case of the device described in Patent Document 1, the temperature sensor is exposed to the heat of the molten resin during insert molding, and if the temperature sensor is damaged by this heat, it may have a negative effect on the temperature detection accuracy, etc. In addition, if a temperature sensor with high heat resistance is used, this will lead to an increase in costs.

[0006] Therefore, an object of the present invention is to provide a wiring component with a physical quantity sensor that can hold the physical quantity sensor with a molding material that covers a portion of the longitudinal direction of the electric wire to be detected, while preventing the physical quantity sensor from being damaged by heat generated during molding of the molding material. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the present invention provides a wiring component with a physical quantity sensor, comprising: an electric wire; a physical quantity sensor for detecting a physical quantity of the electric wire; a retaining member made of a molding material covering a portion of the longitudinal direction of the electric wire and having a retaining hole for holding the physical quantity sensor; and an attachment member attached to the retaining member, wherein the attachment member is provided with a tongue piece for elastically pressing the physical quantity sensor against a pressing surface which is the inner surface of the retaining hole on the electric wire side, and a locking protrusion for locking the physical quantity sensor. Effect of the Invention

[0008] According to the wiring component with a physical quantity sensor according to the present invention, it is possible to prevent the physical quantity sensor from being damaged by heat generated during molding of the molding material that holds the physical quantity sensor. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a wiring component with a physical quantity sensor according to a first embodiment; [Diagram 2] 1A is a perspective view showing the first to third electric wires and the spacer, and FIG. 1B is a perspective view showing the first to third electric wires and the spacer combined together. [Diagram 3] 13(a) and 13(b) are perspective views showing an assembly in which first to third electric wires and a spacer are integrated by a fixing member and a holding member, a physical quantity sensor, and an attachment member. FIG. [Figure 4] FIG. 2A is a perspective view of a mounting member, and FIG. 2B is a cross-sectional view of the mounting member taken along line AA in FIG. [Diagram 5]FIG. 2 is a configuration diagram showing an internal structure of a physical quantity sensor. [Figure 6] 4A and 4B are cross-sectional views of a wiring component with a physical quantity sensor. [Figure 7] FIG. 13 is a perspective view showing a wiring component with a physical quantity sensor according to a second embodiment. [Figure 8] 13(a) and 13(b) are perspective views showing an assembly, a physical quantity sensor, and a mounting member according to a second embodiment. [Figure 9] FIG. 13A is a perspective view of a mounting member according to a second embodiment, and FIG. 13B is a cross-sectional view of the mounting member taken along line BB in FIG. [Figure 10] FIG. 13 is a perspective view showing a wiring component with a physical quantity sensor according to a third embodiment. [Figure 11] 13(a) and 13(b) are perspective views showing an assembly, a physical quantity sensor, and a mounting member according to a third embodiment. [Figure 12] FIG. 13A is a perspective view of a mounting member according to a third embodiment, and FIG. 13B is a cross-sectional view of the mounting member taken along line CC in FIG. [Figure 13] 10A is a perspective view showing a wiring component with a physical quantity sensor according to a fourth embodiment, and FIG. 10B is a perspective view showing an assembly, a physical quantity sensor, and an attachment member according to the fourth embodiment. [Figure 14] FIG. 13(a) is a perspective view of a mounting member according to a fourth embodiment, and (b) is a cross-sectional view of the mounting member taken along line DD in (a). [Figure 15] 13A is a perspective view showing a wiring component with a physical quantity sensor according to a fifth embodiment, and FIG. 13B is a perspective view showing an assembly, a physical quantity sensor, and a mounting member according to the fifth embodiment. [Figure 16] FIG. 13 is a perspective view showing a mounting member according to a fifth embodiment. [Figure 17] FIG. 13 is a cross-sectional view of a wiring component with a physical quantity sensor according to a fifth embodiment. [Figure 18] 13 is a cross-sectional view of a wiring component with a physical quantity sensor according to a modified example of the fifth embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [First embodiment] A first embodiment of the present invention will be described with reference to FIGS.

[0011] 1 is a perspective view showing a wiring component with a physical quantity sensor according to a first embodiment of the present invention. This wiring component with a physical quantity sensor 1 includes first to third electric wires 11-13, a physical quantity sensor 2 that detects the physical quantities of the first to third electric wires 11-13, two spacers 3, 3 arranged between the first to third electric wires 11-13, first and second fixing members 41, 42 that fix the two spacers 3, 3 to the first to third electric wires 11-13, a holding member 5 that holds the physical quantity sensor 2 with respect to the first to third electric wires 11-13, and an attachment member 6 attached to the holding member 5.

[0012] FIG. 2(a) is a perspective view showing the first to third electric wires 11-13 and the spacers 3,3, and FIG. 2(b) is a perspective view showing a state in which the first to third electric wires 11-13 and the spacers 3,3 are combined. FIGS. 3(a) and (b) are perspective views showing an assembly 10 in which the first to third electric wires 11-13 and the spacers 3,3 are integrated by fixing members 4,4 and a holding member 5, a physical quantity sensor 2, and a mounting member 6. FIG. 4(a) is a perspective view of the mounting member 6, and FIG. 4(b) is a cross-sectional view of the mounting member 6 taken along line AA in FIG. 4(a). FIG. 5 is a configuration diagram showing the internal structure of the physical quantity sensor 2. FIGS. 6(a) and (b) are cross-sectional views of a wiring component 1 with a physical quantity sensor.

[0013] In this embodiment, a case will be described in which the physical quantity sensor 2 is a temperature sensor that detects, as a physical quantity, the temperatures of the first to third electric wires 11 to 13. However, without being limited thereto, for example, the physical quantity may be detected to be the strength of a magnetic field generated by currents flowing through the first to third electric wires 11 to 13.

[0014] 5, the physical quantity sensor 2 has a case member 21 made of resin formed into a rectangular parallelepiped shape, a thermistor 22 as a detection unit that converts a physical quantity (temperature in this embodiment) into an electric signal, a support member 23 that supports lead wires 221, 222 of the thermistor 22, a pair of signal wires 24, 25 connected to the lead wires 221, 222, respectively, and a filler 26 (see FIGS. 6(a) and (b)) filled in the case member 21. The filler 26 is, for example, an epoxy resin. The case member 21, thermistor 22, support member 23, and filler 26 constitute a main body 20 of the physical quantity sensor 2. The case member 21 and filler 26 are made of materials with relatively high thermal conductivity.

[0015] The pair of signal wires 24, 25 are insulated electric wires in which core wires 241, 251 made of twisted wires are covered with insulators 242, 252 made of resin, and transmit a detection signal of the thermistor 22 to, for example, a control device (not shown). The thermistor 22 has a metal oxide sintered body 223 (see FIG. 6(a)) as a detection element whose electric resistance changes with temperature, and a sealant 224 that seals the metal oxide sintered body 223, and one end of each of lead wires 221, 222 is connected to both ends of the metal oxide sintered body 223. The other end of each of the lead wires 221, 222 is connected to the core wires 241, 251 of the signal wires 24, 25, respectively, inside the case member 21.

[0016] The first to third electric wires 11 to 13 are respectively connected to three-phase windings of a rotating electric machine. The rotating electric machine is, for example, a motor that rotates a rotor by a magnetic field generated in a stator by a three-phase AC current, a generator that generates a three-phase AC current by the rotation of the rotor, or a motor-generator that has both the functions of a motor and a generator.

[0017] 6(a), the first to third electric wires 11 to 13 are insulated coated electric wires in which conductors 111, 121, and 131 made of a highly conductive metal such as copper are coated with coating layers 112, 122, and 132 made of an insulating resin such as enamel. Note that in this embodiment, the first to third electric wires 11 to 13 are round solid wires having a circular cross section, but are not limited thereto and may be rectangular electric wires having a rectangular cross section, for example.

[0018] 2(a) and 2(b), the first to third electric wires 11 to 13 are arranged in parallel with each other via two spacers 3, 3 made of resin. One spacer 3 is disposed between the first electric wire 11 and the second electric wire 12, and the other spacer 3 is disposed between the second electric wire 12 and the third electric wire 13. Hereinafter, the longitudinal direction of the first to third electric wires 11 to 13 is referred to as the X direction, the arrangement direction of the first to third electric wires 11 to 13 is referred to as the Y direction, and the direction perpendicular to the X direction and the Y direction is referred to as the Z direction.

[0019] The spacer 3 is made of injection-molded resin, and integrally includes first to third electric wire support parts 31 to 33, each of which has a semicircular cross-sectional groove 30 for accommodating one of the first to third electric wires 11 to 13, and plate-shaped first and second connecting parts 34, 35 for connecting the first to third electric wire support parts 31 to 33 along the X direction. The first electric wire support part 31 is provided with first and second anchor parts 311, 312, and the second electric wire support part 32 is provided with a third anchor part 321. The third electric wire support part 33 is provided with fourth to sixth anchor parts 331 to 333. The first to sixth anchor parts 311, 312, 321, 331, 332, 333 are protrusions provided on both sides of the first to third electric wire support parts 31 to 33 in the Z direction.

[0020] The first fixing member 41 is provided between the first anchor portion 311 and the second anchor portion 312, and surrounds the first wire support portion 31 of the spacer 3 together with the first to third wires 11 to 13. The second fixing member 42 is provided between the fifth anchor portion 332 and the sixth anchor portion 333, and surrounds the third wire support portion 33 of the spacer 3 together with the first to third wires 11 to 13.

[0021] The holding member 5 is provided between the third anchor portion 321 and the fourth anchor portion 331. The holding member 5 is made of a molded resin molding material, and covers a portion of the first to third electric wires 11 to 13 in the longitudinal direction together with the spacers 3, 3. As shown in FIGS. 3(a) and 3(b), the holding member 5 integrally includes a main body portion 51 having a holding hole 50 in which the physical quantity sensor 2 is housed, and a pair of electric wire support portions 52, 52 provided on both sides of the main body portion 51 in the X direction.

[0022] The first fixing member 41 is provided on one side in the X direction of the holding member 5, and the second fixing member 42 is provided on the other side in the X direction of the holding member 5. In this embodiment, the first and second fixing members 41, 42 are made of a molding material that is molded simultaneously with the holding member 5. However, each of the first and second fixing members 41, 42 may be made of a combination of multiple resin members.

[0023] The mounting member 6 is made of injection-molded resin, and integrally includes a facing portion 60 facing the physical quantity sensor 2 in the Z direction so as to sandwich the physical quantity sensor 2 between the first to third electric wires 11 to 13, first to fourth arm portions 61 to 64 extending in the Z direction toward the first to third electric wires 11 to 13, first to fourth engagement protrusions 65 to 68 provided at the respective tips of the first to fourth arm portions 61 to 64, and first and second protruding portions 691, 692 protruding from the facing portion 60 on both sides in the X direction. The first protruding portion 691 connects the facing portion 60 to the respective base ends of the first and third arm portions 61, 63. The second protruding portion 692 connects the facing portion 60 to the respective base ends of the second and fourth arm portions 62, 64.

[0024] The facing portion 60 has an elastically deformable tongue piece 601, and elastically presses the physical quantity sensor 2 against a pressed surface 50a, which is the inner surface of the holding hole 50 of the holding member 5 on the side of the first to third electric wires 11 to 13. The tongue piece 601 elastically deforms when the mounting member 6 is attached to the holding member 5, and presses the case member 21 of the physical quantity sensor 2 in the Z direction by its restoring force. The pressed surface 50a is a plane perpendicular to the Z direction.

[0025] The facing part 60 also has a locking protrusion 602 for locking the case member 21 of the physical quantity sensor 2 to prevent the physical quantity sensor 2 from slipping out of the holding hole 50. The locking protrusion 602 is provided at an end of the facing part 60 in the Y direction, and faces in the Z direction a pair of signal lines 24, 25 of the physical quantity sensor 2 that is led out from the case member 21. The mounting member 6 restricts the physical quantity sensor 2 from moving in the Z direction relative to the holding member 5 in a direction away from the pressed surface 50a, and from moving in the Y direction relative to the holding member 5 along the pressed surface 50a.

[0026] The mounting member 6 is made of a soft resin with a lower hardness than the holding member 5. The holding member 5 is made of a PPS (polyphenylene sulfide) resin reinforced with a reinforcing material such as glass fiber or inorganic filler, and the mounting member 6 is made of a relatively soft PPS resin that is not reinforced with a reinforcing material or has a smaller amount of reinforcing material than the holding member 5. This allows the first to fourth arm portions 61-64 and the tongue piece 601 to flexibly deform when the mounting member 6 is attached to the holding member 5, suppressing the occurrence of cracks, chips, and the like.

[0027] The body 51 of the holding member 5 is formed with a plurality of engagement recesses 51a-51d into which the first to fourth engagement protrusions 65-68 of the mounting member 6 are respectively engaged. The mounting member 6 is attached to the holding member 5 by the first to fourth arm portions 61-64 being elastically deformed to engage the first to fourth engagement protrusions 65-68 with the engagement recesses 51a-51d. As shown in FIG. 1 and FIG. 3(a) and (b), the first arm portion 61 and the second arm portion 62, and the third arm portion 63 and the fourth arm portion 64 are each aligned in the X direction. Also, the first arm portion 61 and the third arm portion 63, and the second arm portion 62 and the fourth arm portion 64 are each aligned in the Y direction.

[0028] In the physical quantity sensor 2, the main body 20 is disposed between the first and third arm portions 61, 63 and the second and fourth arm portions 62, 64. The first to fourth engagement protrusions 65-68 are provided to protrude from the tip ends of the first to fourth arm portions 61-64 toward the main body 20 side of the physical quantity sensor 2.

[0029] The main body 51 of the holding member 5 has first and second sidewalls 511, 512 aligned in the X direction, and the physical quantity sensor 2 is housed so as to be sandwiched between the first sidewall 511 and the second sidewall 512. The tip end in the Z direction of the first sidewall 511 is located between the facing portion 60 of the mounting member 6 and the first and third arm portions 61, 63, and faces the first protruding portion 691 of the mounting member 6 in the Z direction. The tip end in the Z direction of the second sidewall 512 is located between the facing portion 60 of the mounting member 6 and the second and fourth arm portions 62, 64, and faces the second protruding portion 692 of the mounting member 6 in the Z direction.

[0030] Furthermore, the main body 51 of the holding member 5 has a first intervening portion 513 interposed between the first arm 61 and the third arm 63 of the mounting member 6, and a second intervening portion 514 interposed between the second arm 62 and the fourth arm 64. In this embodiment, the first intervening portion 513 is provided on the first side wall 511 opposite the physical quantity sensor 2, and the second intervening portion 514 is provided on the second side wall 512 opposite the physical quantity sensor 2.

[0031] The attachment member 6 is restricted from moving in the Y direction relative to the holding member 5 by the first and second intervening portions 513, 514. More specifically, the first arm 61 abuts against one end of the first intervening portion 513 in the Y direction, and the second arm 62 abuts against one end of the second intervening portion 514 in the Y direction, thereby restricting movement of the attachment member 6 to one side in the Y direction (the lower side in the drawing) relative to the holding member 5. Furthermore, the third arm 63 abuts against the other end of the first intervening portion 513 in the Y direction, and the fourth arm 64 abuts against the other end of the second intervening portion 514 in the Y direction, thereby restricting movement of the attachment member 6 to the other side in the Y direction (the upper side in the drawing) relative to the holding member 5.

[0032] Moreover, the main body 51 of the holding member 5 has a bottom wall 515 at an end opposite to the opening direction of the holding hole 50 in the Y direction. The bottom wall 515 is formed across the first side wall 511 and the second side wall 512, and regulates movement of the physical quantity sensor 2 in the direction opposite to the direction in which the locking protrusion 602 of the mounting member 6 prevents the physical quantity sensor 2 from coming off.

[0033] 6(a) and 6(b), a thin wall portion 516 is provided between the first to third electric wires 11-13 and the pressed surface 50a, the thin wall portion 516 being formed thin enough to allow the molten resin to spread therethrough during molding. The thickness T1 of the thinnest portion of the thin wall portion 516 in the Z direction is, for example, 0.5 mm or more and 0.8 mm or less. The thickness T1 is thinner than the thickness T2 of the molding material in the Z direction at the electric wire supporting portions 52, 52 of the holding member 5. In other words, the thickness T2 of the molding material in the Z direction at the electric wire supporting portions 52, 52 is thicker than the thickness T1 of the thinnest portion of the thin wall portion 516, and the holding rigidity of the first to third electric wires 11-13 by the electric wire supporting portions 52, 52 is increased.

[0034] According to the first embodiment described above, the physical quantity sensor 2 is held in the holding hole 50 of the holding member 5 that has been molded in advance, so that the physical quantity sensor 2 is not exposed to heat generated when the holding member 5 is molded, and damage to the physical quantity sensor 2 due to this heat can be prevented. In addition, the first to fourth engagement protrusions 65 to 68 provided at the tip portions of the first to fourth arm portions 61 to 64 of the mounting member 6 are engaged with the multiple engagement recesses 51a to 51d of the holding member, so that the mounting member 6 can be easily mounted to the holding member 5, and the main body portion 20 of the physical quantity sensor 2 is disposed between the first and third arm portions 61, 63 and the second and fourth arm portions 62, 64, so that the mounting member 6 can be formed in a small size. Furthermore, the first and second intervening portions 513, 514 of the holding member 5 restrict the relative movement in the Y direction with respect to the holding member 5, so that the holding member 5 can be formed in a small size.

[0035] [Second embodiment] Next, a second embodiment of the present invention will be described with reference to Figures 7 to 9. In Figures 7 to 9, components having the same functions as those described in the first embodiment are given the same reference numerals as those in Figures 1 to 6, and duplicated explanations will be omitted. The same applies to the third to fifth embodiments described later.

[0036] In the first embodiment, the case has been described where the first to fourth engagement projections 65-68 of the mounting member 6 are provided protruding from the respective tips of the first to fourth arm portions 61-64 toward the physical quantity sensor 2 side, but in the second embodiment, the first to fourth engagement projections 65-68 are provided protruding from the respective tips of the first to fourth arm portions 61-64 toward the opposite side to the physical quantity sensor 2 side. As a result, in this embodiment, the mounting member 6 can be molded using a pair of molding dies consisting of an upper mold and a lower mold that move relatively along the extension direction (Z direction) of the first to fourth arm portions 61-64, for example.

[0037] In addition, in this embodiment, the holding member 5 is provided with a first outer wall portion 517 that faces the first side wall portion 511 in the X direction and sandwiches the first and third arm portions 61, 63 between the first side wall portion 511, and a second outer wall portion 518 that faces the second side wall portion 512 in the X direction and sandwiches the second and fourth arm portions 62, 64 between the second side wall portion 512.

[0038] According to this embodiment, in addition to the same effects as those of the first embodiment, the mounting member 6 can be molded at low cost.

[0039] [Third embodiment] Next, a third embodiment of the present invention will be described with reference to Fig. 10 to Fig. 12. This embodiment is a further modification of the second embodiment, in which the first to fourth engagement projections 65 to 68 are provided protruding from the respective tips of the first to fourth arm portions 61 to 64 on the side opposite to the physical quantity sensor 2 side, and the first and second intermediate portions 513, 514 are provided on the physical quantity sensor 2 side of the first and second side wall portions 511, 512. Note that the first and second outer wall portions 517, 518 of the second embodiment are not provided in this embodiment.

[0040] As a result, in the present embodiment, in addition to the same effects as those of the second embodiment, it is possible to reduce the size of the holding member 5 and the mounting member 6. Furthermore, since the volumes of the holding member 5 and the mounting member 6 can be reduced compared to the second embodiment, the heat of the first to third electric wires 11 to 13 is less likely to diffuse, and it is possible to improve the accuracy of temperature detection by the physical quantity sensor 2.

[0041] [Fourth embodiment] Next, a fourth embodiment of the present invention will be described with reference to Fig. 13 and Fig. 14. In the fourth embodiment, the main body 20 of the physical quantity sensor 2 accommodated in the holding hole 50 of the holding member 5 is prevented from coming off by an attachment member 7 having an opposing portion 70 facing the physical quantity sensor 2 in the Z direction and plate-like first and second protruding pieces 71, 72 protruding from the opposing portion 70 on both sides in the X direction. The opposing portion 70 is provided with a tongue piece 701 that elastically presses the physical quantity sensor 2 against the pressed surface 50a of the holding hole 50, and a locking protrusion 702 that locks the case member 21 of the physical quantity sensor 2 to prevent it from coming off the holding hole 50.

[0042] The mounting member 7 is attached to the holding member 5 by fitting a convex portion provided on one of the holding member 5 and the mounting member 7 into a concave portion provided on the other. Fig. 13 and Fig. 14 show a case where the first to fourth convex portions 519a to 519b provided on the main body portion 51 of the holding member 5 are fitted into the first to fourth concave portions 711, 721, 712, and 722 provided on the mounting member 7. The first and third convex portions 519a and 519c are erected on the tip surface 511a of the first side wall portion 511, and the second and fourth convex portions 519b and 519d are erected on the tip surface 512a of the second side wall portion 512. As shown in FIG. 13(b), the first and second protrusions 519a, 519b have, for example, a circular cross section, and the third and fourth protrusions 519c, 519d have, for example, an elliptical cross section.

[0043] The mounting member 7 has first and third recesses 711, 712 provided on the first protruding piece 71, and second and fourth recesses 721, 722 provided on the second protruding piece 72. The shapes of the first to fourth recesses 711, 721, 712, 722 correspond to the shapes of the first to fourth protruding parts 519a to 519b. As shown in Fig. 13(a), the tips of the first to fourth protruding parts 519a to 519b inserted into the first to fourth protruding parts 519a to 519b are crushed by heating to form an umbrella shape, so that the first to fourth recesses 711, 721, 712, 722 cannot be removed. However, if the mounting member 7 can be attached to the holding member 5 with enough strength to prevent the mounting member 7 from coming off the holding member 5, for example by pressing the first to fourth protrusions 519a to 519b into the first to fourth recesses 711, 721, 712, 722, then it is not necessary to crush the tips of the first to fourth protrusions 519a to 519b.

[0044] In this embodiment, like the first embodiment, damage to the physical quantity sensor 2 caused by heat generated when the holding member 5 is molded can be prevented.

[0045] [Fifth embodiment] Next, a fifth embodiment of the present invention will be described with reference to Fig. 15 to Fig. 17. In the fifth embodiment, a mounting member holding hole 500 communicating with the holding hole 50 is formed in the holding member 5, and the mounting member 8 is housed in the mounting member holding hole 500. The holding member 5 has a first holding wall portion 501 that houses a part of the main body portion 20 of the physical quantity sensor 2 between itself and the pressed surface 50a of the holding hole 50, and a second holding wall portion 502 that holds a part of the main body portion 20 of the physical quantity sensor 2 and the mounting member 8 between itself and the pressed surface 50a.

[0046] The mounting member 8 has a U-shape when viewed in the X direction, and integrally includes a first plate portion 81 that elastically presses the main body portion 20 of the physical quantity sensor 2 against the pressed surface 50a, a second plate portion 82 that faces the first plate portion 81 in the Z direction with a gap therebetween, a connection portion 83 that connects the first plate portion 81 and the second plate portion 82, a locking protrusion 84 that is provided at the tip of the first plate portion 81 and prevents the physical quantity sensor 2 from falling out of the holding hole 50, and a locked protrusion 85 that is provided at the tip of the second plate portion 82 and is locked to an end face 502a of the second holding wall portion 502.

[0047] The mounting member 8 is elastically compressed in the Z direction between the case member 21 of the physical quantity sensor 2 and the second holding wall portion 502 so that the first plate portion 81 and the second plate portion 82 approach each other and are housed in the mounting member holding hole 500. The first plate portion 81 is in elastic contact with the case member 21 of the physical quantity sensor 2, and the second plate portion 82 is in elastic contact with the second holding wall portion 502. The main body portion 20 of the physical quantity sensor 2 is pressed against the pressed surface 50a by the first plate portion 81.

[0048] The mounting member 8 is fixed to the holding member 5 by, for example, an adhesive. In this case, the mounting member 8 is formed from a transparent resin such as acrylic, and the photocurable adhesive filled in the mounting member holding hole 500 is cured by light irradiation, whereby the mounting member 8 can be firmly fixed to the holding member 5.

[0049] In this embodiment, like the first embodiment, damage to the physical quantity sensor 2 caused by heat generated when the holding member 5 is molded can be prevented.

[0050] [Modification of the fifth embodiment] 18 is a cross-sectional view showing a modification of the fifth embodiment. In this modification, an engaging portion 86 for preventing the mounting member 8 from slipping out of the mounting member holding hole 500 is provided on the second plate portion 82, and an engaged portion 503 for engaging with the engaging portion 86 is provided on the second holding wall portion 502. With this configuration, the mounting member 8 can be prevented from slipping out of the mounting member holding hole 500 without using an adhesive.

[0051] (Summary of the embodiment) Next, the technical ideas grasped from the above-described embodiment will be described by using the reference numerals and the like in the embodiment. However, the reference numerals and the like in the following description do not limit the components in the claims to the members and the like specifically shown in the embodiment. [1] A wiring component with a physical quantity sensor (1), comprising: electric wires (11-13); a physical quantity sensor (2) that detects a physical quantity of the electric wires (11-13); a retaining member (5) made of a molding material covering a portion of the longitudinal direction of the electric wires (11-13) and having a retaining hole (50) that accommodates the physical quantity sensor (2); and an attachment member (6) attached to the retaining member (5), wherein the physical quantity sensor (2) is prevented from coming out of the retaining hole (50) by the attachment member (6).

[0052] [2] The wiring component (1) with a physical quantity sensor according to the above item [1], wherein the mounting member (6) has a facing portion (60) facing the physical quantity sensor (2) so as to sandwich the physical quantity sensor (2) between the mounting member (6) and the electric wires (11-13), a plurality of arm portions (61-64) extending toward the electric wires (11-13), and a plurality of engaging protrusions (65-68) provided at the respective tips of the plurality of arm portions (61-64), and the holding member (5) is formed with a plurality of engaging recesses (51a-51d) into which the plurality of engaging protrusions (65-68) of the mounting member (6) respectively engage.

[0053] [3] The wiring component (1) with a physical quantity sensor described in [2] above, wherein the physical quantity sensor (2) is disposed between some of the arm portions (61, 63) and some of the other arm portions (62, 64) of the plurality of arm portions (61-64) of the mounting member (6), and the plurality of engagement protrusions (65-68) are provided protruding from the respective tips of the plurality of arm portions (61-64) to a side opposite to the physical quantity sensor (2).

[0054] [4] The wiring component (1) with a physical quantity sensor according to the above item [2] or [3], wherein the holding member (5) has an intervening portion (513, 514) interposed between a pair of arm portions (61, 63; 62, 64) arranged in a predetermined direction (Y direction) among the multiple arm portions (61 to 64) of the mounting member (6), and the relative movement of the mounting member (6) with respect to the holding member (5) in the predetermined direction (Y direction) is restricted by the intervening portion (513, 514).

[0055] [5] The wiring component (1) with a physical quantity sensor described in [4] above, wherein the holding member (5) has a pair of side wall portions (511, 512) aligned in a direction (X direction) perpendicular to the predetermined direction (Y direction), the physical quantity sensor (2) is housed between the pair of side wall portions (511, 512), and the interposition portions (513, 514) are provided on the physical quantity sensor (2) side of the pair of side wall portions (511, 512), respectively.

[0056] [6] The wiring component (1) with a physical quantity sensor described in [4] above, wherein the holding member (5) has a pair of side wall portions (511, 512) aligned in a direction (X direction) perpendicular to the predetermined direction (Y direction), the physical quantity sensor (2) is housed between the pair of side wall portions (511, 512), and the interposition portions (513, 514) are provided on the side of the pair of side wall portions (511, 512) opposite to the side of the physical quantity sensor (2).

[0057] [7] The wiring component (1) with a physical quantity sensor described in [1] above, wherein the mounting member (7) is attached to the holding member (5) by fitting a convex portion (first to fourth convex portions 519a to 519b) provided on one of the holding member (5) and the mounting member (7) into a concave portion (first to fourth concave portions 711, 721, 712, 722) provided on the other of the holding member (5) and the mounting member (7).

[0058] [8] The wiring component (1) with a physical quantity sensor described in [1] above, wherein the holding member (5) has an attachment member holding hole (500) formed therein communicating with the holding hole (50), and the mounting member (8) is accommodated in the attachment member holding hole (500).

[0059] [9] The wiring component (1) with a physical quantity sensor according to any one of [1] to [8] above, wherein the mounting member (7) elastically presses the physical quantity sensor (2) against a pressing surface (50a), which is the inner surface of the retaining hole (50) on the side of the electric wires (11 to 13).

[0060] Although the embodiment of the present invention has been described above, the invention according to the claims is not limited to the embodiment described above. It should be noted that not all of the combinations of features described in the embodiment are essential to the means for solving the problems of the invention. The present invention can be modified appropriately without departing from the spirit of the invention, and can be modified as follows, for example.

[0061] In the above-described embodiments, the first to third electric wires 11 to 13 are described as the object of physical quantity detection, but only one electric wire may be the object of physical quantity detection. In this case, only one electric wire may be held by the holding member. In addition, the configuration of the physical quantity sensor 2 is not limited to the example shown in FIG. [Explanation of symbols]

[0062] 1...Wiring component with physical quantity sensor 2...Physical quantity sensor 5... Holding member 6, 7, 8... Mounting members 11-13: First to third electric wires 50: Retaining hole 50a: pressed surface 51a-51d: first to fourth engagement recesses 60: opposing portion; 61-64: first to fourth arm portions 65-68: First to fourth engagement protrusions 500: Mounting member holding hole 511: first side wall portion 512: second side wall portion 513, 514...First and second intervening portions

Claims

1. Electric wires and A physical quantity sensor for detecting a physical quantity of the electric wire; a holding member made of a molding material that covers a portion of the electric wire in a longitudinal direction and has a holding hole formed therein for holding the physical quantity sensor; a mounting member attached to the holding member, The mounting member is provided with a tongue piece that elastically presses the physical quantity sensor against a pressing surface that is an inner surface of the holding hole on the electric wire side, and a locking protrusion that locks the physical quantity sensor. Wiring components with physical quantity sensors.

2. the mounting member has a facing portion facing the physical quantity sensor so as to sandwich the physical quantity sensor between the mounting member and the electric wire, a plurality of arm portions extending toward the electric wire, and a plurality of engagement protrusions provided at tip portions of each of the plurality of arm portions, The holding member is formed with a plurality of engagement recesses into which the plurality of engagement projections of the mounting member respectively engage. The wiring component with the physical quantity sensor according to claim 1 .

3. the physical quantity sensor is disposed between some of the arms of the mounting member and another part of the arms, The plurality of engagement protrusions are provided to protrude from tip ends of the plurality of arm portions toward an opposite side to the physical quantity sensor. The wiring component with the physical quantity sensor according to claim 2 .

4. the holding member has an interposition portion interposed between a pair of arms arranged in a predetermined direction among the plurality of arms of the mounting member, and the interposition portion restricts a relative movement of the mounting member with respect to the holding member in the predetermined direction. The wiring component with the physical quantity sensor according to claim 2 or 3.

5. the holding member has a pair of side wall portions aligned in a direction perpendicular to the predetermined direction, and the physical quantity sensor is held between the pair of side wall portions, The intermediate portion is provided on each of the pair of side wall portions on the physical quantity sensor side. The wiring component with the physical quantity sensor according to claim 4 .

6. the holding member has a pair of side wall portions aligned in a direction perpendicular to the predetermined direction, and the physical quantity sensor is held between the pair of side wall portions, The intermediate portion is provided on each of the pair of side wall portions on an opposite side to a side of the physical quantity sensor. The wiring component with the physical quantity sensor according to claim 4 .

7. The mounting member is attached to the holding member by fitting a convex portion provided on one of the holding member and the mounting member into a concave portion provided on the other of the holding member and the mounting member. The wiring component with the physical quantity sensor according to claim 1 .

Images