JP2009144887A - Solenoid valve structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solenoid valve structure capable of preventing contaminators from intruding into an insulating cover. <P>SOLUTION: The solenoid valve structure provides inserting portions 62, 72 for inserting through a harness 37 connected to each of the connection terminals 34, 35 and each harness retaining portions 63, 73 retaining the harness 37 inserted from each of the inserting portions 62, 72 on upper surfaces 61, 71 of the insulating cover 41 which closes the upper opening 102 of the cover 12 of a solenoid valve body 11 by a cap 101 and covers each connection terminals 34, 35 extending sideways. The solenoid valve structure integrally forms on the cap 101 a first downward extension 143 extended toward sides of each of the connection terminals 34, 35 and each auxiliary cover portions 201, 202 extended from the first downward extension 143 along each of the connection terminals 34, 35. The solenoid valve structure closes each of the inserting portions 62, 72 of the insulating cover 41 by each of the auxiliary cover portions 201, 202 and at the same time prevents side of each of the inserting portions 62, 72 of the harness 37 retained to each of the harness retaining portions 63, 73 from moving. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a solenoid valve structure that controls flow.

  Conventionally, when the hydraulic pressure is controlled in a hydraulic circuit, an electromagnetic valve has been used (for example, Patent Document 1), and as such an electromagnetic valve, one shown in FIG. 4 is known.

  The electromagnetic valve body 802 of the electromagnetic valve 801 includes a metal cover 803, and a resin molded product 804 is accommodated in the cover 803. A metal plate 805 is insert-molded in the resin molded product 804, and a bobbin 806 is formed above the metal plate 805.

  A coil 811 is wound around the bobbin 806, and the bobbin 806 and the coil 811 constitute a solenoid 812. A core 813 is fitted in the solenoid 812, and an operating shaft 814 is inserted into the core 813 so as to be movable up and down.

  A terminal component 821 extends laterally from the lower side of the bobbin 806, and a connection terminal 822 extends from the resin molded product 804 along the upper surface of the terminal component 821. Each connection terminal 822 is connected to an end of a winding forming the coil 811, and a harness 823 is soldered to the end of the connection terminal 822, and a control signal is transmitted via the harness 823. It is configured to be supplied.

  An insulating cover 831 is attached to a portion of the electromagnetic valve main body 802 from which the connection terminal 822 extends, and the insulating cover 831 is formed in a rectangular container shape opened toward the electromagnetic valve main body 802 side. Yes. Insertion portions 833 and 833 for inserting the harness 823 are formed in a triangular shape on the upper surface 832 of the insulating cover 831, and a circular harness holding portion 834 is formed at the tip of each insertion portion 833 and 833. 834 is formed.

  A cap 841 is provided at the upper end of the cover 803 that houses the solenoid 812, and the upper opening of the cover 803 is closed by the cap 841. Thereby, it is comprised so that entry of the contamination etc. to the inside of the solenoid valve main body 802 can be prevented.

  At the upper end of the operating shaft 814, a suctioned portion 851 to be sucked by the core 813 is provided, and at the lower end side of the operating shaft 814, the nozzle portion 852 formed in the resin molded product 804 is inserted. An upper valve body 855 for opening and closing the upper seat hole 854 on the upper surface of the molded seat member 853 is provided. The lower end portion of the operating shaft 814 is inserted through the sheet member 853, and a lower seat hole 856 provided on the lower surface of the sheet member 853 is formed at the lower end of the operating shaft 814 that passes through the sheet member 853. A lower valve body 857 that opens and closes is provided.

  A coil spring 862 is disposed between the lower valve body 857 and the holder 861 attached to the nozzle portion 852, and the operating shaft 814 is urged upward in the figure. .

Accordingly, when the solenoid is not energized, the operating shaft 814 is moved upward by the coil spring 862, and the lower seat hole 856 is closed by the lower valve body 857, while the upper seat hole 854 is opened. When energized, the suctioned portion 851 at the upper end of the operating shaft 814 is sucked by the core 813 so that the upper seat hole 854 is closed by the upper valve body 855 and the lower seat hole 856 is opened. It is configured.
Japanese Utility Model Publication No. 5-12865

  However, in such an electromagnetic valve 801, insertion portions 833 and 833 for inserting the harness 823 are opened on the upper surface 832 of the insulating cover 831 covering the connection terminal 822.

  For this reason, metal thread-like contamination may enter from the insertion portions 833 and 833, and the connection terminal 822 may be short-circuited.

  The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide an electromagnetic valve structure capable of preventing entry of contamination in an insulating cover.

  In order to solve the above problems, in the solenoid valve structure according to claim 1 of the present invention, the upper opening of the solenoid valve body is closed by a cap, while the connection terminal extends laterally from the solenoid valve body. In the electromagnetic valve structure in which an insertion part for inserting a harness connected to the connection terminal and a holding part for holding the harness inserted from the insertion part are provided on an upper surface of an insulating cover covering the cap, the cap Further, the extension portion extending toward the connection terminal side, and the insertion portion of the insulating cover that extends along the connection terminal from the extension portion are closed and held by the holding portion. An auxiliary cover portion that prevents movement of the harness on the insertion portion side is integrally formed.

  That is, the cap that closes the upper opening of the solenoid valve main body includes an extension portion that extends toward the connection terminal side that extends laterally from the solenoid valve main body, and an extension portion that extends from the extension portion to the connection terminal. An auxiliary cover portion extending along the line is integrally formed, and the insertion portion provided on the upper surface of the insulating cover covering the connection terminal is closed by the auxiliary cover portion.

  At this time, the harness held by the holding portion on the upper surface of the insulating cover is prevented from moving on the insertion portion side by the auxiliary cover portion that closes the insertion portion.

  Further, in the electromagnetic valve structure according to claim 2, the auxiliary cover portion extends from the auxiliary cover main body in the insertion portion, and the auxiliary cover main body is arranged in the insertion portion. The skirt portion extends along the inner surface of the upper surface of the insulating cover.

  That is, while the cap is attached to the electromagnetic valve main body and the connection terminal is covered with the insulating cover, the auxiliary cover main body constituting the auxiliary cover portion is disposed in the insertion portion. A skirt portion extending from the auxiliary cover portion is disposed along the inner surface of the upper surface of the insulating cover.

  As described above, in the electromagnetic valve structure according to the first aspect of the present invention, the insertion portion on the upper surface of the insulating cover covering the connection terminal can be closed by the auxiliary cover portion integrally formed with the cap.

  For this reason, compared with the conventional case where the insertion portion for inserting the harness is opened on the upper surface of the insulating cover that covers the connection terminal, the opening portion that allows entry of contamination into the insulating cover can be closed. Insulation can be improved.

  Thereby, it is possible to prevent the connection terminal from being short-circuited due to contamination that has entered the insulating cover, and it is possible to reliably prevent malfunction caused by the short-circuit due to contamination.

  At this time, the harness held by the holding portion on the upper surface of the insulating cover is prevented from moving on the insertion portion side by the auxiliary cover portion that closes the insertion portion. For this reason, compared with the conventional case where movement of the harness held by the holding portion is allowed to the insertion portion side, the connection between the harness and the connection terminal is caused by vibration generated during use or bending of the harness. It is also possible to prevent the occurrence of problems such as possible breakage.

  In addition, the auxiliary cover portion that closes the insertion portion is integrally formed with the cap that closes the upper opening of the electromagnetic valve body. For this reason, compared with the case where the said auxiliary | assistant cover part is formed with another member, cost reduction can be achieved. Moreover, since the number of parts can be reduced, the number of assembly steps can also be reduced.

  Further, in the electromagnetic valve structure according to claim 2, in the state where the cap is attached to the electromagnetic valve main body and the connection terminal is covered with the insulating cover, the auxiliary cover main body constituting the auxiliary cover portion is in the insertion portion. The skirt portion extending from the auxiliary cover portion is disposed along the inner surface of the upper surface of the insulating cover.

  Thereby, the clearance gap formed between the said auxiliary cover main body and the edge part of the said insertion part can also be closed, and the penetration | invasion of a small contamination can also be prevented.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view showing an electromagnetic valve 1 having an electromagnetic valve structure according to the present embodiment. The electromagnetic valve 1 is used in a hydraulic circuit of an automobile and controls hydraulic pressure.

  As shown in FIG. 2, the electromagnetic valve body 11 of the electromagnetic valve 1 includes a metal cylindrical cover 12, and a resin molded product 13 is accommodated in the cover 12 from the tip. . A metal plate 14 is insert-molded in the resin molded product 13, and the cover 12 and the resin molded product 13 are C-shaped in a state where the tip of the cover 12 is in contact with the metal plate 14. The fixing member 15 is fixed.

  The resin molded product 13 is formed with a bobbin 21 housed in the cover 12 and a nozzle portion 22 extending from the cover 12 to the front end side. A coil 23 is wound around the bobbin 21. Thus, a solenoid 24 is formed.

  A rectangular terminal component 31 extends laterally from the lower side of the bobbin 21, and locking claws (not shown) project from both side surfaces of the terminal component 31.

  As shown in FIG. 1, a partition wall 33 extending in the length direction is extended in the center on the upper surface of the terminal component 31, and the resin molding is formed on both sides of the partition wall 33. A first connection terminal 34 and a second connection terminal 35 extending from the product 13 are respectively disposed.

  Ends of windings forming the coil 23 are connected to the connection terminals 34 and 35, and harnesses 37 and 37 are soldered to the soldering portions 36 and 36 at the tips of the connection terminals 34 and 35, respectively. It is attached. Thus, the electromagnetic valve 1 is configured to operate when a control signal is supplied from a control device (not shown) connected to the harnesses 37 and 37.

  An insulating cover 41 is attached to the portion of the electromagnetic valve body 11 from which the terminal component 31 extends. The insulating cover 41 includes a rectangular container-shaped container part 42 that opens toward the electromagnetic valve body 11 side, and arm parts 43 and 43 that extend from the container part 42 toward the electromagnetic valve body 11 side. The arm portions 43 and 43 are provided with locking holes 44 and 44 that engage with the locking claws projecting from the side surface of the terminal component 31 (only one is shown). ).

  The container portion 42 includes a first covering portion 51 that covers the first connection terminal 34 and a second covering portion 52 that covers the second connection terminal 35 in a state of being attached to the terminal component portion 31. Both the connection terminals 34 and 35 can be insulated while the corresponding connection terminals 34 and 35 are covered with the covering portions 51 and 52.

  As shown in FIGS. 1 and 3, a first insertion portion 62 for inserting a harness 37 connected to the first connection terminal 34 is formed on the upper surface 61 of the first covering portion 51 of the insulating cover 41. It is formed in a triangular shape, and the one insertion portion 62 is configured to open to the electromagnetic valve main body 11 side. A circular first harness holding portion 63 is formed at the apex portion on the back side of the first insertion portion 62, and the first harness holding portion 63 is large enough to be held in a state where the covering of the harness 37 is inserted. Is formed.

  On the upper surface 71 of the second covering portion 52, a second insertion portion 72 for inserting the harness 37 connected to the second connection terminal 35 is formed in a triangular shape, and the two insertion portions 72 are also The solenoid valve body 11 is configured to open to the side. A circular second harness holding portion 73 is formed at the apex portion on the back side of the second insertion portion 72, and the second harness holding portion 73 can be held in a state where the covering of the harness 37 is inserted. It is formed in size.

  On the other hand, as shown in FIG. 2, a cap 101 is provided at the upper end of the cover 12 containing the solenoid 24, and the upper opening 102 of the cover 12 is closed by the cap 101. Yes. Thereby, it is comprised so that entry of the contamination etc. to the inside of the solenoid valve main body 11 can be prevented.

  The cap 101 is formed of a synthetic resin having a rigidity lower than that of metal. The cap 101 includes an insertion portion 111 that is inserted into the upper opening portion 102 and closes the upper opening portion 102, and the insertion portion 111 includes A first support portion 112 and a second support portion 113 that form a pair to be supported on the peripheral surface of the cover 12 in a state of being inserted into the upper opening portion 102 are integrally formed.

  The insertion portion 111 is formed in a disc shape to be inserted into the upper opening 102 of the cover 12, and an avoidance hole 121 for avoiding interference is formed at the center of the lower end surface of the insertion portion 111 in the figure. It is recessed in the part. A circular ring-shaped ring portion 122 is integrally formed on the upper end surface of the insertion portion 111 in the drawing.

  Also, a flange 131 extending sideways is formed integrally with the upper end of the insertion surface 111 in the upper part of the figure, and the flange 131 faces the upper end of the cover 12. It is configured.

  Each of the support portions 112 and 113 extends from the upper side of the peripheral surface of the ring portion 122 formed in the insertion portion 111, and both the support portions 112 and 113 are provided at opposing portions. The first and second support portions 112 and 113 include first and second flat plate portions 141 and 142 extending in parallel at a height position spaced from the insertion portion 111, and first and second flat plate portions 141 and 141, respectively. The first and second downward extending portions 143 and 144 are bent from 142 and extend downward in the figure.

  The distal ends of both downwardly extending portions 143 and 144 are formed to be thick, and the base end sides of the extending portions 143 and 144 are set to have the same thickness as the flat plate portions 141 and 142. ing. Accordingly, the first and second thick portions 151 and 152 on the tip side of the downward extending portions 143 and 144 and the first and second thick portions 151 and 152 are provided on the support portions 112 and 113, respectively. First and second thin portions 153 and 154 on the base end side are formed, and elasticity is given to the support portions 112 and 113 by the thin portions 153 and 154.

  First and second engaging convex portions 161 and 162 projecting inwardly project from the upper ends of the thick portions 151 and 152 in the first and second downward extending portions 143 and 144. These engaging projections 161 and 162 are configured to engage with the first and second engaging holes 163 and 164 provided on the peripheral surface of the cover 12 in a loosely fitted state. .

  As a result, a snap fit structure is formed to engage the engagement convex portions 161 and 162 of the support portions 112 and 113 with the engagement holes 163 and 164 of the cover 12, respectively. The cap 101 can be fixed in a state of being positioned on the cover 12.

  At this time, the engagement convex portions 161 and 162 of the support portions 112 and 113 are loosely fitted into the engagement holes 163 and 164 on the peripheral surface of the cover 12, so The cap 101 can be moved up and down slightly.

  Further, in this fixed state, the flange 131 formed in each insertion portion 111 of the cap 101 is configured to be separated from the upper end surface of the cover 12, and the separation distance is 0 mm to 0 mm. It is set to be 3 mm.

  Accordingly, the insertion portion 111 is maintained in a floating state in which the end portion is inserted into the upper opening 102 of the cover 12 and the flange portion 131 is not pressed against the upper end surface of the cover 12. The insertion portion 111 is configured to be movable in the insertion / removal direction (vertical direction in FIG. 2) with respect to the cover 12.

  The length of the first support part 112 is set longer than that of the second support part 113, and the first downward extension part 143 of the first support part 112 is connected to the connection terminals 34 and 35 side. The extension part extended toward is comprised. A first extension extending along the first connection terminal 34 is attached to the tip of the first downward extension 143 constituting the extension in a state where the cover 12 is attached to the electromagnetic valve body 11. An auxiliary cover part 201 and a second auxiliary cover part 202 extending along the second connection terminal part 35 are integrally formed.

  As shown in FIG. 3, the first auxiliary cover part 201 closes the first insertion part 62 of the insulating cover 41 in a state where the insulating cover 41 is attached to the electromagnetic valve body 11, and The harness 37 held by one harness holding part 63 is configured to prevent the harness 37 from moving toward the first insertion part 62. The second auxiliary cover portion 202 closes the second insertion portion 72 of the insulating cover 41 in a state where the insulating cover 41 is attached to the electromagnetic valve main body 11, and is attached to the second harness holding portion 73. It is comprised so that the movement to the said 2nd insertion part 72 side of the said harness 37 hold | maintained may be prevented.

  As shown in FIG. 2, the first auxiliary cover portion 201 includes a triangular prism-shaped first auxiliary cover main body 211 disposed in the first insertion portion 62, and laterally from the first auxiliary cover main body 211. As shown in FIG. 3, the first skirt portions 212, 212 are extended, and the first auxiliary cover main body 211 is fitted into the first insertion portion 62 and the first skirt portions are both fitted. The portions 212, 212 are configured to extend in close contact with the inner surface of the upper surface 61 of the first covering portion 51 of the insulating cover 41.

  The tip of the first auxiliary cover main body 211 is formed in an arc shape, and the first auxiliary cover main body 211 is in the state where the first auxiliary cover main body 211 is fitted in the first insertion portion 62. The length dimension of the first holding cover main body 211 is set so that the covering of the harness 37 held by the first harness holding part 63 can be sandwiched between the front end part and the inner side surface of the first harness holding part 63. Has been.

  As shown in FIG. 2, the second auxiliary cover part 202 includes a triangular columnar second auxiliary cover body 221 disposed in the second insertion part 72, and to the side from the second auxiliary cover body 221. As shown in FIG. 3, the second auxiliary cover main body 221 is fitted into the second insertion portion 72, and the second skirt portions 222 and 222 are extended. The skirt portions 222, 222 are configured to extend in close contact with the inner surface of the upper surface 71 of the second covering portion 52 of the insulating cover 41.

  The tip of the second auxiliary cover main body 221 is formed in an arc shape, and the second auxiliary cover main body 221 has the second auxiliary cover main body 221 fitted in the second insertion portion 72 in a state where the second auxiliary cover main body 221 is fitted inside. The length dimension of the second holding cover main body 221 is set so that the covering of the harness 37 held by the second harness holding portion 73 can be sandwiched between the front end portion and the inner side surface of the second harness holding portion 73. Has been.

  As shown in FIG. 2, a metal core 251 that is excited by the solenoid 24 is disposed in the bobbin 21, and the end of the core 251 is fitted into the metal plate 14. It is positioned in a state of being fitted in the hole 252. A small-diameter portion 253 is formed at the distal end portion of the core 251, and the small-diameter portion 253 is positioned in a state of being fitted in a metal sheet member 254. The core 251, the metal plate 14, and the sheet member 254 positioned with respect to each other are insert-molded into the resin molded product 13, and the metal core 251, the metal plate 14, and the sheet member are formed. A magnetic circuit is formed by 254 and the cover 12.

  An operating shaft 261 is inserted through the core 251 so as to be movable up and down. An upper end portion of the operating shaft 261 extending upward from the core 251 has a disc-shaped object to be sucked by the core 251. The suction part 262 is fixed. An upper sheet hole 263 provided in the upper surface of the sheet member 254 is inserted into the lower end side of the operating shaft 261 extending downward from the core 251, and the upper sheet hole 263 is formed in this part. An upper valve body 264 that opens and closes is provided.

  The lower end portion of the operating shaft 261 passes through a lower seat hole 271 provided in the sheet member 254, and the lower seat of the operating shaft 261 extending downward from the sheet member 254 is disposed on the lower seat. A lower valve body 272 that opens and closes the hole 271 is provided.

  A coil spring 282 is disposed between the lower valve body 272 and the holder 281 attached to the nozzle portion 22, and the operating shaft 261 is directed upward in FIG. 2 by the coil spring 282. Is energized.

  Thereby, when the solenoid is not energized, the lower seat hole 271 is closed by the lower valve body 272 by moving the operating shaft 261 upward by the coil spring 282, and the lower seat hole 271 is opened from the input port 301. The oil is prevented from flowing into the valve chamber 302 through the opening, the upper seat hole 263 is opened, and the oil in the output port 303 is discharged from the drain port 304 through the valve chamber 302 and the upper seat hole 263. It is configured as follows.

  Further, when the solenoid is energized, the upper seat hole 263 is closed by the upper valve body 264 by sucking the suctioned portion 262 at the upper end of the operating shaft 261 to the core 251 and moving the operating shaft 261 downward. The drain port 304 is prevented from discharging oil, and the lower seat hole 271 is opened, and the oil from the input port 301 is passed through the lower seat hole 271 and the valve chamber 302 to the output port 303. Is configured to output from.

  In the present embodiment according to the above configuration, the cap 101 that closes the upper opening 102 of the cover 12 that constitutes the electromagnetic valve body 11 has a terminal component 31 that extends laterally from the electromagnetic valve body 11. The first downward extending portion 143 of the first support portion 112 extending toward the upper first connecting terminal 34 and the second connecting terminal 35, and the connecting terminals from the first downward extending portion 143. The first auxiliary cover part 201 and the second auxiliary cover part 202 extending along the lines 34 and 35 are integrally formed, and the first and second cover parts of the insulating cover 41 covering the connection terminals 34 and 35, respectively. The first and second insertion portions 62 and 72 opened on the upper surfaces 61 and 71 can be closed by the corresponding auxiliary cover portions 201 and 202.

  Therefore, the first and second insertion portions for inserting the harnesses 37 and 37 into the upper surfaces 61 and 71 of the first and second covering portions 51 and 52 in the insulating cover 41 covering the connection terminals 34 and 35, respectively. Compared with the conventional case where 62 and 72 are left open, the opening allowing entry of contamination into the insulating cover 41 can be closed, and the insulation can be improved.

  As a result, it is possible to prevent the connection terminals 34 and 35 from being short-circuited due to contamination that has entered the insulating cover 41, and to reliably prevent malfunction due to short-circuit due to contamination.

  At this time, the harnesses 37 and 37 held by the first and second harness holding portions 63 and 73 of the upper surfaces 61 and 71 of the insulating cover 41 are connected to the auxiliary covers that close the insertion portions 62 and 72, respectively. The portions 201 and 202 prevent the insertion portions 62 and 72 from moving, and the harnesses 37 and 37 are supported in a state where the coverings are sandwiched therebetween. .

  For this reason, compared with the conventional case where movement of the harnesses 37, 37 held by the harness holding parts 63, 73 is allowed to the insertion parts 62, 72, vibrations generated during use and the harness 37, Owing to the bending of 37, it is possible to prevent the occurrence of problems such as peeling that may occur at the soldered portions 36, 36 where the harnesses 37, 37 and the connection terminals 34, 35 are soldered.

  In addition, the auxiliary cover portions 201 and 202 that close the insertion portions 62 and 72 are integrally formed with the cap 101 that closes the upper opening 102 of the electromagnetic valve main body 11. For this reason, compared with the case where the said auxiliary | assistant cover parts 201 and 202 are formed with another member, cost reduction can be achieved. Moreover, since the number of parts can be reduced, the number of assembly steps can also be reduced.

  The auxiliary cover portions 201 and 202 are configured in a state where the cap 101 is attached to the electromagnetic valve body 11 and the connection terminals 34 and 35 are covered with the covering portions 51 and 52 of the insulating cover 41. The auxiliary cover bodies 211 and 221 are disposed in the insertion parts 62 and 72, and the skirt parts 212, 212, 222, and 222 extending from the auxiliary cover bodies 211 and 221 are provided in the insulating cover 41. It arrange | positions along the inner surface of the said upper surfaces 61 and 71 of the coating | coated parts 51 and 52. As shown in FIG.

  Thereby, the clearance gap formed between each said auxiliary | assistant cover main body 211,221 and the edge part of each said insertion part 62,72 can also be closed, and the penetration | invasion of a small contamination can also be prevented.

It is a perspective view which shows one embodiment of this invention. It is sectional drawing which shows the principal part of the embodiment. It is a top view of the embodiment. It is explanatory drawing which shows the conventional solenoid valve.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Solenoid valve 11 Solenoid valve main body 12 Cover 34 1st connection terminal 35 2nd connection terminal 37 Harness 41 Insulation cover 61 Upper surface 62 First insertion part 63 First harness holding part 71 Upper surface 72 Second insertion part 73 Second harness holding part DESCRIPTION OF SYMBOLS 101 Cap 102 Upper opening part 143 1st downward extension part 201 1st auxiliary | assistant cover part 202 2nd auxiliary | assistant cover part 211 1st auxiliary | assistant cover main body 212 1st skirt part 221 2nd auxiliary | assistant cover main body 222 2nd skirt part

Claims (2)

While the upper opening of the solenoid valve body is closed by the cap,
An insertion portion for inserting a harness connected to the connection terminal on an upper surface of an insulating cover covering a connection terminal extending laterally from the solenoid valve body, and a holding for holding the harness inserted from the insertion portion In the solenoid valve structure provided with
An extension part extending toward the connection terminal on the cap, and the insertion part of the insulating cover attached to the extension part along the connection terminal from the extension part are closed and held in the holding part An electromagnetic valve structure in which an auxiliary cover portion for preventing movement of the harness on the insertion portion side is integrally formed.   Auxiliary cover main body disposed in the insertion portion and the auxiliary cover portion extending from the auxiliary cover main body along the inner surface of the upper surface of the insulating cover in a state where the auxiliary cover main body is disposed in the insertion portion. The solenoid valve structure according to claim 1, wherein the solenoid valve structure includes an extending skirt portion.

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