JP2018133179A - Engine starting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engine starting device which can be assembled more easily.SOLUTION: An engine starting device 100 includes: a substrate 6; a cylindrical case member 4 arranged to surround the substrate 6; a coil antenna 2 arranged on a +Z side of the substrate 6 in the case member 4 and connected to a substrate surface on a -Z side of the substrate 6 via a harness 8; a cover member 7 closing an end opening of the case member 4 on the -Z side of the substrate 6; and a guide portion 5c to guide the harness 8 such that the wiring shape of the harness 8 between the cover member 7 and the substrate 6 is a predetermined wiring shape.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an engine start device used for starting an engine mounted on a vehicle.

  Conventionally, an engine start device arranged in a vehicle compartment is known (see Patent Document 1). The engine start device starts the engine when the engine start button is pressed in a situation where a portable device (portable key) having a transponder coil exists in the surroundings. Specifically, when the engine start button, which is a cylindrical slider, is pressed, the rubber contact on the back side of the slider is compressed, and the movable contact formed on the back surface of the rubber contact and the fixed contact formed on the surface of the substrate And the engine starts. This engine start device is provided with a coil antenna around the slider for wireless communication with a portable key. The coil antenna is connected to a connector on the back surface of the substrate via a harness. The slider is arranged so that it can slide in the direction of pressing the button inside the cylindrical case. The cylindrical case is configured to surround and hold the bottomed cylindrical rear cover. The open end of the rear cover is configured to contact the back surface of the substrate and support the substrate.

JP 2014-194902 A

  In the above-described configuration, the harness connecting the coil antenna and the substrate is arranged so as to cross the substrate in the cylindrical case. Therefore, if the worker who assembles the engine start device does not push the harness into the case so as not to protrude from the case (forming work), the case and the rear cover There is a risk of the harness being caught between the two. On the other hand, the implementation of the forming operation hinders the efficiency of the assembly operation of the engine start device.

  In view of the above, it is desirable to provide an engine start device that is easier to assemble.

  An engine start device according to an embodiment of the present invention includes a substrate, a cylindrical case member disposed so as to surround the substrate, and disposed on one side of the substrate in the case member via a harness. A coil antenna connected to the board surface on the other side of the board, a cover member for closing the end opening of the case member on the other side of the board, and the harness between the cover member and the board And a guide portion for guiding the harness so that the wiring shape becomes a predetermined wiring shape.

  By the above-mentioned means, an engine start device that is easier to assemble can be provided.

It is a perspective view of the example of composition of an engine start device. It is a disassembled perspective view of the engine start apparatus of FIG. It is a figure which shows the state by which the coil antenna and the board | substrate were connected by the harness. It is the schematic of the elastic member attached to the board | substrate. It is a side view of another structural example of an elastic member. It is a side view of the engine start apparatus as a comparative example which uses the elastic member which is not provided with the guide part as a component. It is the schematic of a cover member. It is a figure explaining the effect of the cable accommodating part in a cover member.

  Hereinafter, an engine start device 100 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a configuration example of the engine start device 100. FIG. 2 is an exploded perspective view of the engine start device 100. A dashed-dotted line in FIG. 2 represents the center axis CX of the engine start device 100.

  The engine start device 100 is an in-vehicle device for starting an engine of a vehicle, and is attached to a position where an operator sitting on a driver's seat can operate. In this embodiment, the engine start device 100 is a push switch type cylindrical device, and mainly includes an operation member 1, a coil antenna 2, a slide member 3, a case member 4, an elastic member 5, a substrate 6, and a cover member. 7 and a harness 8 or the like. The engine start device 100 may have a rectangular tube shape.

  The operation member 1 is a member disposed on the front side (+ Z side) of the substrate 6. In this embodiment, it is made of a synthetic resin. As shown in FIG. 2, the operating member 1 has a cylindrical portion 1a extending in the front-rear direction (Z-axis direction). The front surface (+ Z side surface) of the operation member 1 constitutes an operation surface 1b that receives a pressing force by the operator. The operation surface 1b may have translucency.

  The coil antenna 2 is an example of an electrical component disposed on the front side of the substrate 6. In this embodiment, the coil antenna 2 includes an annular bobbin portion 2a formed of a synthetic resin, a coil portion 2b formed by winding a conductive wire around the outer periphery of the bobbin portion 2a, and both ends of the conductive wire constituting the coil portion 2b. And a connection terminal 2c to which is connected.

  The slide member 3 is a member disposed on the front side of the substrate 6. In this embodiment, it is made of a synthetic resin. As shown in FIG. 2, the slide member 3 is a double cylindrical member extending in the front-rear direction, and has an outer cylindrical portion 3a and an inner cylindrical portion 3b. The coil antenna 2 is accommodated between the outer cylindrical portion 3a and the inner cylindrical portion 3b. The outer cylindrical portion 3 a is configured to fit inside the cylindrical portion 1 a of the operation member 1. The operation member 1, the coil antenna 2, and the slide member 3 are combined in this way to form a slider assembly.

  The case member 4 is a member disposed so as to surround the substrate 6. In this embodiment, it is made of a synthetic resin. As shown in FIG. 2, the front side portion of the case member 4 has a double cylindrical structure extending in the front-rear direction, and includes an outer cylindrical portion 4a and an inner cylindrical portion 4b. The slider assembly is accommodated so as to be slidable in the front-rear direction between the outer cylindrical portion 4a and the inner cylindrical portion 4b. The rear portion of the case member 4 has a rear cylindrical portion 4c having a cylindrical structure extending in the front-rear direction. The rear cylindrical portion 4 c is configured to accommodate the elastic member 5 and the substrate 6. The end opening on the rear side of the case member 4 is closed by the cover member 7.

  The elastic member 5 is a sheet-like member formed of a material having elasticity such as rubber, and is disposed on the front side of the substrate 6. In the present embodiment, the elastic member 5 is a rubber contact formed of a translucent rubber. As shown in FIG. 2, the elastic member 5 is attached so as to cover the front surface of the substrate 6. The elastic member 5 has a dome portion 5a formed so that the front surface is convex and the rear surface is concave. The dome part 5a is elastically deformed backward when pressed from the front. A movable contact 5b is formed on the rear surface of the dome portion 5a. Moreover, the elastic member 5 has the guide part 5c which guides the harness 8 so that the wiring shape of the harness 8 may become a predetermined wiring shape.

  The substrate 6 is a plate-like member accommodated in the case member 4. A fixed contact 6 a is formed on the front surface of the substrate 6. The fixed contact 6 a corresponds to the movable contact 5 b formed on the rear surface of the dome portion 5 a of the elastic member 5. When the operation member 1 is pressed and the slider assembly slides backward, the dome portion 5 a of the elastic member 5 is pushed backward by the rear end portion of the slide member 3. Therefore, the dome part 5a is elastically deformed and crushed. As a result, the movable contact 5 b formed on the rear surface of the dome portion 5 a comes into contact with the fixed contact 6 a formed on the front surface of the substrate 6. When the movable contact 5b and the fixed contact 6a come into contact with each other, the engine start device 100 switches, for example, between an on state and an off state of the engine.

  A light emitting element 6 b such as an LED is mounted on the center of the front surface of the substrate 6. The light emitting element 6b functions to illuminate the operation surface 1b of the operation member 1 from the rear. A plurality of electronic components are mounted on the rear surface of the substrate 6 to constitute an electronic circuit. A connector 6c (see FIG. 4A) having external connection terminals extending rearward is attached to the rear surface of the substrate 6.

  The cover member 7 is a member disposed on the rear side (−Z side) of the substrate 6. In this embodiment, it is made of a synthetic resin. The cover member 7 is configured to fit inside the rear cylindrical portion 4 c of the case member 4. The cover member 7 has an opening 7 a corresponding to the connector 6 c attached to the substrate 6.

  The harness 8 is one or a plurality of cables that connect the coil antenna 2 and the substrate 6. In this embodiment, the harness 8 includes a connector terminal 8a, a connector terminal 8b, and a flexible cable portion 8c. The connector terminal 8 a at one end of the harness 8 is connected to the connection terminal 2 c of the coil antenna 2 disposed on the front side of the substrate 6. The connector terminal 8 b at the other end of the harness 8 is connected to a connection terminal 6 d fixed to the rear surface of the substrate 6. FIG. 3 shows a state in which the coil antenna 2 and the substrate 6 are connected by the harness 8. FIG. 3 corresponds to a view in which the operation member 1, the slide member 3, the case member 4, and the cover member 7 are omitted in the engine start device 100 shown in FIG. 1. As shown in FIG. 3, the harness 8 connected to the coil antenna 2 disposed on the front side of the elastic member 5 passes through the guide portion 5 c of the elastic member 5 and the substrate 6 disposed on the rear side of the elastic member 5. It is connected to the.

  With the above-described configuration, the engine start device 100 can be operated by pressing the operation member 1 in a situation where, for example, a portable key including a transponder coil is present, that is, in a situation where a radio signal transmitted by the portable key is received. Then, the engine is started. Specifically, when the operation member 1 is pressed, the elastic member 5 on the back side of the slide member 3 is compressed, and the movable contact 5b formed on the rear surface of the dome portion 5a of the elastic member 5 and the front surface of the substrate 6 are compressed. The engine is started upon contact with the formed fixed contact 6a.

  Even when the battery mounted on the portable key is exhausted and the portable key cannot transmit a wireless signal, the portable key is moved to the engine start device 100 when it is brought close to the engine start device 100. A wireless signal can be transmitted. This is because the engine start device 100 outputs (radiates forward) a transponder drive radio wave via the coil antenna 2. Specifically, the substrate 6 is connected to an external circuit (not shown) via a wiring (not shown) that extends to the outside through an opening 7a formed in the cover member 7, and an electrical signal that generates a transponder driving radio wave is predetermined. It is repeatedly generated at the control cycle. The coil antenna 2 radiates an electric signal generated by the substrate 6 as a transponder driving radio wave. The portable key can generate an electromotive force for driving the transponder (transmission circuit) using the transponder driving radio wave.

  Next, the details of the elastic member 5 will be described with reference to FIG. FIG. 4 is a schematic view of the elastic member 5 attached to the substrate 6. Specifically, FIG. 4 (A) shows a side view, FIG. 4 (B) shows a rear view, FIG. 4 (C) shows a front view, and FIG. 4 (D) shows a perspective view.

  The elastic member 5 is configured to cover the front surface and the side surface of the substrate 6. As shown in FIG. 4B, the guide portion 5c is disposed so as to extend in the front-rear direction outside the end portion 6e on the −X side of the substrate 6 with respect to the central axis CX of the engine start device 100 (case member 4). ing. However, the guide part 5 c may be arranged so as to penetrate the inside of the substrate 6. In this case, the substrate 6 has a through hole through which the guide portion 5c passes.

  In the present embodiment, the guide portion 5 c constitutes a cylindrical portion 5 c 1 that extends linearly along the inner wall of the case member 4 from the front surface side to the rear surface side of the substrate 6. As shown in FIG. 4A, the length L1 of the side wall of the cylindrical portion 5c1 on the inner wall side (the side far from the center axis CX) of the case member 4 is on the side closer to the center axis CX of the case member 4. It is longer than the length L2 of the side wall of the cylindrical part 5c1. With this configuration, the cylindrical portion 5c1 guides the cable portion 8c so that the cable 8c of the harness 8 on the rear side of the board 6 has a predetermined cable shape, and the cable 8c is the case member 4. Can be prevented from contacting the inner wall. The predetermined routing shape of the cable portion 8c is a routing shape when the cable portion 8c does not contact the inner wall of the case member 4, and includes, for example, the routing shape shown in FIG.

  As shown in FIG. 4C, the side wall width W1 of the cylindrical part 5c1 on the inner wall side of the case member 4 is equal to the width W2 of the side wall of the cylindrical part 5c1 on the side close to the central axis CX of the case member 4. Wider. With this configuration, an assembly operator who assembles the engine start device 100 can, for example, connect the connector terminal 8a or the connector to a relatively wide portion (portion relatively far from the central axis CX) of the through hole formed by the cylindrical portion 5c1. By inserting the terminal 8b, the cable portion 8c can be passed from one side of the substrate 6 to the other side.

  Further, as shown in FIGS. 4A and 4B, the connection terminal 6d is disposed closer to the central axis CX than the cylindrical portion 5c1. With this configuration, contact between the cable portion 8c and the inner wall of the case member 4 is more reliably prevented. This is because the cabling shape of the cable portion 8c is regulated so as to approach the central axis CX as it approaches the connection terminal 6d. Moreover, the connector 6c is arrange | positioned in the place which does not contact the cable part 8c of the harness 8 connected to the terminal 6d for a connection. Specifically, it is arranged on the opposite side of the connection terminal 6d with respect to the central axis CX. With this arrangement, contact between the cable portion 8c and the connector 6c is more reliably prevented.

  The guide portion 5 c may have another shape that can move the cable portion 8 c away from the case member 4 on the rear side of the substrate 6. FIG. 5 is a side view of another configuration example of the elastic member 5. As shown in FIG. 5A, the guide portion 5c may be configured to bend toward the central axis CX. Or the guide part 5c may be comprised so that it may extend linearly diagonally toward the central axis CX, as shown in FIG.5 (B). Or the guide part 5c may have a part which protrudes in the front side (+ Z side) of the elastic member 5, as shown in FIG.5 (C). Alternatively, the guide portion 5c may have a wall-like portion extending along the inner wall of the case member 4 on the rear side of the substrate 6 as shown in FIG. Further, the features shown in each of FIGS. 5A to 5D may be combined as appropriate.

  Next, the effect of the guide portion 5c will be described with reference to FIG. FIG. 6 is a side view of an engine start device 100X as a comparative example including an elastic member 5X that does not include a guide portion as a constituent element. Specifically, FIG. 6A shows the engine start device 100X before the cover member 7 is assembled, and FIG. 6B shows the engine start device 100X after the cover member 7 is assembled.

  When the elastic member 5X is not provided with a guide portion, the cable portion 8c of the harness 8 is formed when the elastic member 5X is accommodated inside the case member 4 as shown in FIG. In some cases, the rear cylindrical portion 4c may protrude from the outer diameter. This is because the cable portion 8c has a sufficient length so that it can be pinched with a finger or the like during assembly work. In addition, the broken line of FIG. 6 (A) represents the extended line of the rear side cylindrical part 4c of the case member 4. FIG.

  In this case, when the end opening of the case member 4 is closed by the cover member 7 without performing the forming operation, the cable portion 8c is connected between the case member 4 and the cover member 7 as shown in FIG. It gets caught in between. The forming operation is, for example, an operation of pushing the cable portion 8c into the rear cylindrical portion 4c.

  The guide portion 5c shown in FIGS. 2 to 5 prevents the cable portion 8c from protruding from the outer diameter of the rear cylindrical portion 4c, so that the cable portion 8c is connected to the case member 4 and the cover member 7 as described above. It can be prevented from being caught between them. Therefore, the engine start device 100 can realize the omission of the forming work, that is, the reduction of manufacturing man-hours.

  Next, the details of the cover member 7 will be described with reference to FIG. FIG. 7 is a schematic view of the cover member 7. Specifically, FIG. 7 (A) shows a side view, FIG. 7 (B) shows a rear view, FIG. 7 (C) shows a front view, and FIG. 7 (D) shows a perspective view.

  As shown in FIGS. 7A to 7D, the cover member 7 includes an opening 7a that allows the pins of the connector 6c to pass therethrough, a cable housing portion 7b that can house the cable portion 8c of the harness 8, and a connector. And a connector housing portion 7c capable of housing an external connector corresponding to 6c.

  The cover member 7 is desirably formed such that the thickness T1 of the portion where the cable housing portion 7b is formed is equal to or less than the thickness T2 of the portion where the connector housing portion 7c is formed. This is to prevent the overall length (length in the Z-axis direction) of the engine start device 100 from being increased. In the present embodiment, the thickness T1 is substantially equal to the thickness T2.

  The cable housing portion 7b has, for example, a depth (length in the X-axis direction) D1 and a width (Y-axis) so that the inner wall and the cable portion 8c of the harness 8 do not come into contact with each other when the engine start device 100 is assembled. The length in the direction) D2 and the depth (length in the Z-axis direction) T1 are determined. In this case, the cable housing portion 7b functions as a guide portion that guides the harness 8 so that the wiring shape of the harness 8 between the cover member 7 and the substrate 6 becomes a predetermined wiring shape. In the configuration in which the cable portion 8c and the inner bottom surface of the cover member 7 are in contact with each other, the cable portion 8c is compressed in the front-rear direction and spreads in the lateral direction (X-axis direction), and the cable portion 8c has a predetermined wiring shape. It is because it cannot be maintained. Further, the cable portion 8c may be sandwiched between the case member 4 and the cover member 7. In the present embodiment, the cable housing portion 7b is formed so that the depth D1, the width D2, and the depth T1 are as large as possible. However, the cable housing portion 7b may be formed to have a different size as long as the inner wall and the cable portion 8c do not come into contact with each other when the assembly of the engine start device 100 is completed. For example, the width D2 may be formed to be narrower. The cable housing portion 7b has a shape that is substantially rectangular in a front view and an inverted truncated pyramid in a side view. However, the cable housing portion 7b may have another shape.

  Next, the effect of the cable housing part 7b will be described with reference to FIG. FIG. 8 is a side view of the elastic member, the substrate, the cover member, and the harness, and shows a state when they are assembled. FIG. 8 shows the outline of the cover member by a solid line, and shows a part of the inner wall of the cover member by a broken line (hidden line). Specifically, FIG. 8A is a side view of the elastic member 5, the substrate 6, the cover member 7, and the harness 8 that constitute the engine start device 100. FIG. 8B is a side view of the elastic member 5X, the substrate 6, the cover member 7X, and the harness 8 constituting an engine start device as a comparative example. The elastic member 5X does not include a guide part. The accommodating portion 7bX of the cover member 7X does not have a sufficient size to accommodate the cable portion 8c in a non-contact manner.

  In FIG. 8A, the cable portion 8 c is accommodated in the cable accommodating portion 7 b of the cover member 7 without contacting the cover member 7.

  On the other hand, in FIG. 8B, the cable portion 8c comes into contact with the inner wall of the accommodating portion 7bX of the cover member 7X and is accommodated so as to be folded between the inner bottom surface and the substrate 6. Therefore, when the end opening of the case member 4 is blocked by the cover member 7X, the cable portion 8c has an inappropriate routing shape as shown in FIG. 8B between the substrate 6 and the cover member 7X. There is a risk of being caught. Further, when the end opening of the case member 4 is blocked by the cover member 7X without performing the forming operation, the cable portion 8c expands in the lateral direction when the cover member 7X is assembled, and the case member 4 and the cover member 7X. There is a risk of being pinched between.

  The cover member 7 shown in FIG. 7 includes the cable housing portion 7b having a size sufficient to accommodate the cable portion 8c without contacting the cable portion 8c, so that the cable portion 8c is inappropriate as described above. It is possible to prevent the cable 6 from being sandwiched between the substrate 6 and the cover member 7 with a simple wiring shape. Further, the cable portion 8c can be prevented from being sandwiched between the case member 4 and the cover member 7. Therefore, the engine start device 100 can realize the omission of the forming work, that is, the reduction of manufacturing man-hours.

  As described above, the engine start device 100 according to the embodiment of the present invention includes the substrate 6, the cylindrical case member 4 disposed so as to surround the substrate 6, and one side of the substrate 6 within the case member 4. The coil antenna 2 disposed on the (+ Z side) and connected to the substrate surface on the other side (−Z side) of the substrate 6 via the harness 8, and the end opening of the case member 4 on the other side of the substrate 6 And a guide portion 5c for guiding the harness 8 so that the wiring shape of the harness 8 between the cover member 7 and the substrate 6 becomes a predetermined wiring shape. With this configuration, the engine start device 100 can prevent the cable portion 8c of the harness 8 from protruding from the case member 4 during the assembly work, and the cable portion 8c is interposed between the case member 4 and the cover member 7. It can be prevented from being caught. As a result, the assembly operator can assemble the engine start device 100 more easily.

  The engine start device 100 corresponds to a pressable operation member 1 disposed on one side of the substrate 6 in the case member 4 and a fixed contact 6 a formed on the substrate surface on one side of the substrate 6. And an elastic member 5 having a movable contact 5b. The guide portion 5 c is a part of the elastic member 5 that is elastically deformed when the operation member 1 is pressed. However, the guide part 5 c may be a member independent of the elastic member 5. In this case, the guide portion 5c is formed of a material having elasticity such as rubber, for example.

  The guide portion 5 c is configured to extend from one side of the substrate 6 to the other side of the substrate 6. That is, it is configured to extend across the substrate 6 in the front-rear direction (Z-axis direction) to the −Z side of the substrate 6. With this configuration, the guide portion 5c is located on the −Z side of the substrate 6 so that the cable portion 8c is close to the central axis CX of the case member 4, that is, the cable portion 8c is away from the case member 4. Can guide.

  The guide portion 5c may be a cylindrical portion 5c1 extending along the inner wall of the case member 4 as shown in FIG. The length L1 of the side wall of the cylindrical portion 5c1 on the inner wall side of the case member 4 is configured to be longer than the length L2 of the side wall of the cylindrical portion 5c1 on the side close to the central axis CX of the case member 4. May be. With this configuration, the tubular portion 5 c 1 can more reliably prevent the cable portion 8 c of the harness 8 from coming into contact with the inner wall of the case member 4.

  The connection terminal 6d on the substrate surface on the other side (-Z side) of the substrate 6 is desirably disposed closer to the central axis CX of the case member 4 than the guide portion 5c. With this configuration, contact between the cable portion 8c and the inner wall of the case member 4 is more reliably prevented. This is because the cabling shape of the cable portion 8c is regulated so as to approach the central axis CX as it approaches the connection terminal 6d.

  The cover member 7 includes a cable housing portion 7b that can house the harness 8 so that the wiring shape of the harness 8 between the cover member 7 and the substrate 6 becomes a predetermined wiring shape. With this configuration, the engine start device 100 can accommodate the cable portion 8 c in the cover member 7 without contacting the cover member 7 and the cable portion 8 c of the harness 8. Therefore, it is possible to prevent the cable portion 8c from being sandwiched between the substrate 6 and the cover member 7 with an inappropriate wiring shape. Further, when the cover member 7 is assembled, the cable portion 8 c can be prevented from expanding in the lateral direction (X-axis direction) and being sandwiched between the case member 4 and the cover member 7.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiment. Various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the present invention.

  For example, the electrical component disposed on one side of the substrate 6 in the case member 4 and connected to the substrate surface on the other side of the substrate 6 via the harness 8 is an electrical component other than the coil antenna 2. May be.

  DESCRIPTION OF SYMBOLS 1 ... Operation member 1a ... Cylindrical part 2 ... Coil antenna 2a ... Bobbin part 2b ... Coil part 2c ... Connection terminal 3 ... Slide member 3a ... Outer cylinder Shaped part 3b ... Inner cylindrical part 4 ... Case member 4a ... Outer cylindrical part 4b ... Inner cylindrical part 4c ... Rear cylindrical part 5 ... Elastic member 5a ... -Dome part 5b ... Movable contact 5c ... Guide part 5c1 ... Cylindrical part 6 ... Substrate 6a ... Fixed contact 6b ... Light emitting element 6c ... Connector 6d ... For connection Terminal 6e ... End 7 ... Cover member 7a ... Opening 7b ... Cable housing 7c ... Connector housing 8 ... Harness 8a, 8b ... Connector terminal 8c ... Cable part 100 ... Engine start device

Claims (6)

A substrate,
A cylindrical case member disposed so as to surround the substrate;
A coil antenna disposed on one side of the substrate in the case member and connected to a substrate surface on the other side of the substrate via a harness;
A cover member that closes an end opening of the case member on the other side of the substrate;
A guide portion for guiding the harness so that a wiring shape of the harness between the cover member and the substrate becomes a predetermined wiring shape;
Engine start device. A depressible operation member disposed on one side of the substrate within the case member;
An elastic member having a movable contact corresponding to a fixed contact formed on the substrate surface on one side of the substrate;
The guide portion is a part of the elastic member that is elastically deformed in response to pressing of the operation member.
The engine start device according to claim 1. The guide portion extends from one side of the substrate to the other side of the substrate.
The engine start device according to claim 1 or 2. The guide portion is a tubular portion extending along the inner wall of the case member,
The length of the side wall of the cylindrical part on the side far from the central axis of the case member is longer than the length of the side wall of the cylindrical part on the side close to the central axis of the case member,
The engine start device according to any one of claims 1 to 3. The harness is connected to a connection terminal on a board surface on the other side of the board,
The connection terminal is disposed closer to the central axis of the case member than the guide portion,
The engine start device according to any one of claims 1 to 4. The cover member has a housing portion that can house the harness so that a wiring shape of the harness between the cover member and the substrate becomes a predetermined wiring shape.
The engine start device according to any one of claims 1 to 5.