On-vehicle device and solenoid device

Abstract

To provide an on-vehicle device capable of reducing looseness of a connector and a solenoid device.SOLUTION: A solenoid device that is used as an on-vehicle device, and contains a connector attachment part 162 comprises: a device main body that is electrically connected to a harness on a vehicle side so as to be mounted to a vehicle; a connector 102 that is attached to the device main body, and is electrically connected to the harness and the device main body; a lega part 202 that is extended in a predetermined attachment direction (a - direction of a Z shaft) directed from one side to the other side of the connector and the device main body, has flexibility in an orthogonal direction (a Y shaft direction) that is orthogonal to the attachment direction, and provided to one side of the connector; a guide wall 301 that is provided to the other side of the connector, and guides the leg part in the attachment direction; an engagement projection part 302 that is projected from the guide wall, and includes side surfaces 303 and 304 that are extended along the orthogonal direction at front and back sides in the attachment direction; and an engagement hole 203 that is provided to the leg part, and to which the engagement projection part is fitted.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to an in-vehicle device and a solenoid device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, in an in-vehicle device such as a solenoid valve, a structure is known in which a connector to which a harness or the like is connected is attached by a snap fit. For example, Patent Document 1 discloses a structure in which a claw of a connector is engaged with an engagement hole of the bobbin to lock the connector to the bobbin.

[0003] Also, for example, Patent Document 2 discloses a structure for locking an engagement claw of a bobbin into an engagement hole of a connector. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-299674 A [Patent Document 2] JP 2014-149007 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the techniques of Patent Documents 1 and 2, when some force is applied to the connector or bobbin, the edge of the engagement hole may ride up on the inclined surface of the claw, causing a larger backlash than designed in the connector. SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to reduce the rattle of a connector. [Means for solving the problem]

[0006] One aspect of the in-vehicle device of the present invention comprises a device main body that is mounted on a vehicle and electrically connected to a harness on the vehicle side, a connector that is attached to the device main body and electrically connects the harness and the device main body, a leg that extends in a predetermined mounting direction from one of the device main body and the connector to the other and has flexibility in a perpendicular direction perpendicular to the mounting direction, and is provided on the one side, a guide wall that is provided on the other side and guides the leg in the mounting direction, an engagement protrusion that protrudes from the guide wall and has side surfaces extending along the perpendicular direction both before and after the mounting direction, and an engagement hole that is provided on the leg and into which the engagement protrusion fits.

[0007] Moreover, one aspect of a solenoid device according to the present invention comprises a hollow bobbin, a coil wound around the outer periphery of the bobbin, a magnetic core fixed to the inside of the bobbin, a plunger that moves due to the magnetic field generated by the core, a connector attached to the bobbin, into which a harness is inserted and which electrically connects the harness and the coil, a leg extending in a predetermined mounting direction from one of the bobbin and the connector to the other and having flexibility in a direction perpendicular to the mounting direction, the leg being provided on the one side, a guide wall provided on the other side for guiding the leg in the mounting direction, an engagement protrusion protruding from the guide wall and having side surfaces extending along the perpendicular direction on both the front and rear of the mounting direction, and an engagement hole provided on the leg into which the engagement protrusion fits. Effect of the Invention

[0008] According to the present invention, the rattle of the connector is reduced. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing the appearance of one side of a solenoid device. [Diagram 2] FIG. 2 is a perspective view showing the appearance of the other side of the solenoid device. [Diagram 3] FIG. 3 is a cross-sectional view showing the internal structure of the solenoid device. [Figure 4]FIG. 4 is a perspective view of the device in the state shown in FIG. 1 with the front cover removed. [Diagram 5] FIG. 5 is an exploded perspective view showing the mounting structure between the connector and the bobbin. [Figure 6] FIG. 6 is a partial enlarged view showing the mounting structure between the connector and the bobbin. [Figure 7] FIG. 7 is a cross-sectional perspective view showing an attachment structure between a connector and a bobbin. [Figure 8] FIG. 8 is a cross-sectional view of the snap fit in a separated state. [Figure 9] FIG. 9 is a cross-sectional view of the snap-fit ​​connection state. [Figure 10] FIG. 10 is a partially enlarged view of a snap fit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, with reference to the accompanying drawings, an embodiment of the in-vehicle device and the solenoid device of the present disclosure will be described in detail. However, in order to avoid the following description becoming unnecessarily redundant and to facilitate understanding by those skilled in the art, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters and duplicated description of substantially the same configuration may be omitted. In addition, elements shown in the previously described figures may be appropriately referenced in the description of the later figures.

[0011] In each of the drawings described below, XYZ coordinate axes are shown as a reference for convenience in explaining directions, and show common directions in all of the drawings described below. Figures 1 and 2 are perspective views showing the appearance of a solenoid device. Figure 1 shows the appearance of one side of the solenoid device, and Figure 2 shows the appearance of the other side of the solenoid device. Figure 3 is a cross-sectional view showing the internal structure of the solenoid device.

[0012] The solenoid device 100 is used, for example, as an in-vehicle device, and comprises a device body 101 and a connector 102. The device body 101 has a generally cylindrical outer shape extending in the X-axis direction, and has an output shaft 140 on the front side in the X-axis direction. The device body 101 is mounted on a vehicle and electrically connected to a harness on the vehicle side. The device body 101 includes a front cover 110, a rear cover 120, and a peripheral cover 130. The front cover 110 covers the front of the device body 101, and the output shaft 140 penetrates the center of the front cover 110 and protrudes forward. The output shaft 140 is driven in the front-rear direction in the X-axis direction. The rear cover 120 covers the rear of the device body 101, and the peripheral cover 130 covers the peripheral surface of the device body 101. The front cover 110, the rear cover 120, and the peripheral cover 130 are made of, for example, metal.

[0013] The device body 101 includes therein a coil 150, a bobbin 160, a core 170, and a plunger 180. Coil 150 is wound around the outer periphery of hollow bobbin 160. Core 170 is made of a magnetic material and is fixed to the inner surface of bobbin 160. A magnetic field is induced in core 170 by passing a current through coil 150.

[0014] The plunger 180 is integral with the output shaft 140 and moves back and forth in the X-axis direction due to the magnetic field generated by the core 170 . The bobbin 160 has a coil portion 161 around which the coil 150 is wound, and a connector attachment portion 162 to which the connector 102 is attached. The connector attachment portion 162 is provided around the bobbin 160, for example, at a location in the Z-axis direction.

[0015] The connector 102 is attached to the device body 101 and electrically connects a harness (not shown) to the device body 101. Specifically, the connector 102 is fixed to a connector attachment portion 162 of the bobbin 160 by snap-fitting, protrudes from the peripheral surface of the device body 101 in, for example, the Z-axis direction, and has an outer shape extending in, for example, the X-axis direction. The connector 102 has a harness attachment portion 201, for example, on the rear side in the X-axis direction, and a harness on the vehicle side is attached to the harness attachment portion 201. The connector 102 electrically connects the harness to the coil 150.

[0016] The backlash between the connector 102 and the bobbin 160 needs to be suppressed within a design tolerance, and if the backlash is large, problems may occur, for example, in the installation of a harness. Therefore, in the solenoid device 100 of this embodiment, an installation structure that suppresses the backlash between the connector 102 and the bobbin 160 is used.

[0017] Figures 4 to 7 are diagrams showing the mounting structure of the connector 102 and the bobbin 160. Figure 4 shows a perspective view with the front cover 110 removed, Figure 5 shows an exploded perspective view, Figure 6 shows a partially enlarged view, and Figure 7 shows a cross-sectional perspective view. The connector 102 is attached by snap-fitting to the connector attachment portion 162 of the bobbin 160 by being pushed from the + side to the - side in the Z-axis direction. In the following description, the - direction of the Z axis may be referred to as the "attachment direction". Furthermore, apart from the front-rear direction of the device main body 101, the - direction of the Z axis may be referred to as the front of the attachment direction and the + direction of the Z axis may be referred to as the rear of the attachment direction, based on the attachment direction.

[0018] The peripheral cover 130 is fixed as a part of the device body 101 after the connector 102 is attached to the bobbin 160. The peripheral cover 130 covers the coil portion 161 and the coil 150 of the bobbin 160, and also holds the connector 102 to prevent it from being separated from the bobbin 160, as described below.

[0019] The connector 102 includes legs 202 extending in the mounting direction. In the present embodiment, as an example, two legs 202 are provided to sandwich the connector mounting portion 162 of the bobbin 160. The legs 202 are made of, for example, resin, and have flexibility in the Y-axis direction perpendicular to the mounting direction. In the following description, the Y-axis direction may be referred to as the direction perpendicular to the mounting direction.

[0020] The connector attachment portion 162 of the bobbin 160 has a guide wall 301 that guides the leg portion 202 in the attachment direction. The guide wall 301 extends along the XZ plane. Note that "along" is not limited to being parallel, and means that tilts, irregularities, and bends are allowed within a practically acceptable range.

[0021] The leg portion 202 has an engagement hole 203 , a slope portion 204 , and a covered portion 205 , and an engagement protrusion 302 protrudes from the guide wall 301 . The engagement hole 203 is a hole into which the engagement protrusion 302 fits. The inclined surface portion 204 is located on the front side in the mounting direction (the negative side of the Z axis) with respect to the engagement hole 203, and faces the guide wall 301. That is, the inclined surface portion 204 is provided at a front location in the mounting direction on the leg portion 202, inclines in a direction away from the guide wall 301 as it moves forward in the mounting direction, and faces the guide wall 301.

[0022] The covered portion 205 is located on the rear side in the mounting direction (the positive side of the Z axis) with respect to the engagement hole 203, and protrudes opposite to the guide wall 301 (the positive side of the Y axis). The engaging protrusion 302 protrudes in a direction perpendicular to the mounting direction, and a front side surface 303 located on the front side of the mounting direction and a rear side surface 304 located on the rear side of the mounting direction each extend in a direction perpendicular to the mounting direction. In other words, the engaging protrusion 302 has side surfaces 303, 304 extending in the perpendicular direction on the front and rear of the mounting direction, respectively.

[0023] The connector 102 is provided with a protrusion 206 extending in the X-axis direction and protruding in the mounting direction, at a position rearward of the multiple legs 202 in the mounting direction and between the multiple legs 202 in the direction perpendicular to the mounting direction (Y-axis direction). Meanwhile, the connector mounting portion 162 of the bobbin 160 is provided with a groove 305 extending in the X-axis direction, recessed in the mounting direction, and into which the protrusion 206 fits.

[0024] 8 to 10 are diagrams showing details of the attachment by snap fitting. FIG. 8 shows a cross-sectional view in a separated state, FIG. 9 shows a cross-sectional view in a joined state, and FIG. 10 shows a partially enlarged view. When the connector 102 advances in the attachment direction relative to the bobbin 160, the leg 202 is guided by the guide wall 301 and the inclined surface 204 comes into contact with the engaging protrusion 302. Then, as the connector 102 advances in the attachment direction, the leg 202 rides up onto the engaging protrusion 302 and the leg 202 naturally bends.

[0025] 10, the inclined surface portion 204 extends to a position away from the guide wall 301 by a distance h2 that is greater than the amount of protrusion h1 of the engaging protrusion 302 from the guide wall 301. Therefore, when the leg portion 202 advances in the mounting direction, the inclined surface portion 204 ensures that the leg portion 202 rides up onto the engaging protrusion 302.

[0026] 9, when leg 202 moves further in the attachment direction, engaging protrusion 302 fits into engaging hole 203 of leg 202, and leg 202 returns to its original bending state. As a result, connector 102 is attached to bobbin 160. Both front side surface 303 and rear side surface 304 of engaging protrusion 302 extend in a direction perpendicular to the attachment direction. Therefore, even if an external force is applied to connector 102, the edge of engaging hole 203 will not ride up on engaging protrusion 302, and rattling of connector 102 is suppressed.

[0027] In addition, in this embodiment, since the engagement hole 203 is a through hole extending in a direction perpendicular to the mounting direction, the front side surface 303 and the rear side surface 304 come into contact with the inner surface of the engagement hole 203, thereby further suppressing rattling. Furthermore, when connector 102 is attached to bobbin 160, protrusions 206 of connector 102 fit into grooves 305 of bobbin 160, suppressing inclination of connector 102 relative to bobbin 160 and further suppressing rattling of connector 102. When the peripheral cover 130 is fixed after the connector 102 is attached to the bobbin 160, the peripheral cover 130 covers the covered portion 205 from the rear side in the attachment direction, as shown in Fig. 9. Therefore, the connector 102 is pressed by the peripheral cover 130 and can withstand a strong external force, and separation of the connector 102 from the bobbin 160 is prevented.

[0028] Incidentally, although it is easy to create the engagement hole 203 as a through hole, it may also be a blind hole with a bottom. Also, the shape of the tip of the engagement protrusion 302 protruding from the guide wall 301 may be a tapered shape that has been chamfered, etc., as long as the front side surface 303 and the rear side surface 304 remain. If the engagement protrusion 302 has a tapered shape, it is easy to fit into the engagement hole 203.

[0029] In addition, the above explanation shows an example in which the leg 202 and the engagement hole 203 are provided on the connector 102 side, and the guide wall 301 and the engagement protrusion 302 are provided on the bobbin 160 side, but the leg according to the present invention may be provided on the bobbin 160 side, and the guide wall according to the present invention may be provided on the connector 102 side.

[0030] In addition, in the above, a solenoid device is shown as an example of an in-vehicle device of the present invention, but the in-vehicle device of the present invention is not limited to the above, and the present invention can be widely applied to various devices to which a connector is attached. The above-described embodiment should be considered as illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not by the above-described embodiment, and is intended to include all modifications within the meaning and scope of the claims.

[0031] The present technology can be configured as follows. (1) a device main body that is mounted on a vehicle and electrically connected to a harness on the vehicle side; a connector attached to the device body and electrically connecting the harness and the device body; a leg portion extending in a predetermined mounting direction from one of the device body and the connector toward the other, the leg portion having flexibility in a direction perpendicular to the mounting direction, the leg portion being provided on the one of the device body and the connector; a guide wall provided on the other side to guide the leg portion in the mounting direction; an engaging protrusion protruding from the guide wall and having a side surface extending along the perpendicular direction on each of the front and rear sides of the mounting direction; an engagement hole provided in the leg portion into which the engagement protrusion is fitted; An in-vehicle device comprising:

[0032] (2) The in-vehicle device according to (1), wherein the engagement hole is a through hole extending along the perpendicular direction. (3) The vehicle-mounted device according to claim 1 or 2, wherein the leg portion has a slope portion at a forward location in the mounting direction that slopes away from the guide wall as it moves forward in the mounting direction and faces the guide wall.

[0033] (4) The in-vehicle device according to (3), wherein the inclined surface portion extends to a position farther away from the guide wall than an amount by which the engaging protrusion protrudes from the guide wall.

[0034] (5) The leg portion is provided in a plurality of positions spaced apart from each other in the orthogonal direction, a protrusion provided on the one side, located between the plurality of leg portions in the orthogonal direction, located behind the leg portions in the mounting direction, and protruding in the mounting direction; a groove provided on the other side, recessed in the mounting direction, into which the protrusion fits; The in-vehicle device according to any one of (1) to (4), further comprising:

[0035] (6) a cover that covers at least a portion of the device body and is fixed to the device body; a covered portion provided on the one side and covered with the cover from a rear side in the mounting direction; The in-vehicle device according to any one of (1) to (5), further comprising:

[0036] (7) A hollow bobbin; A coil wound around the outer periphery of the bobbin; a magnetic core fixed inside the bobbin; a plunger that is moved by a magnetic field generated by the core; a connector attached to the bobbin, into which a harness is inserted, and which electrically connects the harness and the coil; a leg portion extending in a predetermined mounting direction from one of the bobbin and the connector toward the other, the leg portion having flexibility in a direction perpendicular to the mounting direction, the leg portion being provided on the one of the bobbin and the connector; a guide wall provided on the other side to guide the leg portion in the mounting direction; an engaging protrusion protruding from the guide wall and having a side surface extending along the perpendicular direction on each of the front and rear sides of the mounting direction; an engagement hole provided in the leg portion into which the engagement protrusion is fitted; A solenoid device comprising: [Explanation of symbols]

[0037] 100: Solenoid device 101: Device body 102: Connector 110: Front cover 120: Rear cover 130: Peripheral cover 140: Output shaft 150: Coil 160: Bobbin 161: Coil section 162: Connector mounting part 170: Core 180: Plunger 201: Harness attachment part 202: Legs 203: Engagement hole 204: Slope 205: Covered part 206: Projection 301: Guide wall 302: Tie protrusion 303: Front side 304: Rear side 305: Groove

Claims

1. a device main body that is mounted on a vehicle and electrically connected to a harness on the vehicle side; a connector attached to the device body and electrically connecting the harness and the device body; a leg portion extending in a predetermined mounting direction from one of the device body and the connector toward the other, the leg portion having flexibility in a direction perpendicular to the mounting direction, the leg portion being provided on the one of the device body and the connector; a guide wall provided on the other side to guide the leg portion in the mounting direction; an engaging protrusion protruding from the guide wall and having a side surface extending along the perpendicular direction on each of the front and rear sides of the mounting direction; an engagement hole provided in the leg portion into which the engagement protrusion is fitted; An in-vehicle device comprising:

2. The in-vehicle device according to claim 1 , wherein the engagement hole is a through hole extending along the perpendicular direction.

3. The vehicle-mounted device according to claim 1 , wherein the leg portion includes a slope portion at a front portion in the mounting direction, the slope portion being inclined in a direction away from the guide wall as it moves forward in the mounting direction and facing the guide wall.

4. The vehicle-mounted device according to claim 3 , wherein the inclined surface portion extends to a position farther away from the guide wall than an amount by which the engaging protrusion protrudes from the guide wall.

5. The leg portion is provided in a plurality of positions spaced apart from each other in the orthogonal direction, a protrusion provided on the one side, located between the plurality of leg portions in the orthogonal direction, located behind the leg portions in the mounting direction, and protruding in the mounting direction; a groove provided on the other side, recessed in the mounting direction, into which the protrusion fits; The in-vehicle device according to claim 1 , further comprising:

6. a cover that covers at least a portion of the device body and is fixed to the device body; a covered portion provided on the one side and covered with the cover from a rear side in the mounting direction; The in-vehicle device according to claim 1 , further comprising:

7. A hollow bobbin; A coil wound around the outer periphery of the bobbin; a magnetic core fixed inside the bobbin; a plunger that is moved by a magnetic field generated by the core; a connector attached to the bobbin, into which a harness is inserted, and which electrically connects the harness and the coil; a leg portion extending in a predetermined mounting direction from one of the bobbin and the connector toward the other, the leg portion having flexibility in a direction perpendicular to the mounting direction, the leg portion being provided on the one of the bobbin and the connector; a guide wall provided on the other side to guide the leg portion in the mounting direction; an engaging protrusion protruding from the guide wall and having a side surface extending along the perpendicular direction on each of the front and rear sides of the mounting direction; an engagement hole provided in the leg portion into which the engagement protrusion is fitted; A solenoid device comprising:

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