JP2009090818A - Fixing structure of in-vehicle instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing structure of an in-vehicle instrument which suppresses the collision of the in-vehicle instrument such as an inverter with other members or the like and suppresses damage to the in-vehicle instrument such as the inverter in collision of a vehicle. <P>SOLUTION: A fixing structure 10 includes: a mounting base 211; a guide member 170 which is extended toward the rear of a vehicle body with respect to the inverter 720 mounted on the mounting base 211 and is tilted toward the upper side of an engine mount 191 that is arranged to be gradually spaced apart relative to the inverter 720 from the inverter 720 toward a rear; and a connecting member 150 including a fitting part 151 which is fitted in a recess formed at the guide member 170 and is connected with the guide member 170 to allow the connection with the guide member 170 to be released by pushing the inverter 720 from the front side of the vehicle body toward the rear, the connecting member 150 connecting the guide member 170 and the inverter 720. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a structure for fixing a vehicle-mounted device.

  Various proposals have been made for fixing structures for on-vehicle equipment and the like. For example, a component mounting structure in a motor room described in Japanese Patent Application Laid-Open No. 9-52534 includes a component mounting member that fixes a control unit substantially horizontally and is spaced apart in the front-rear direction of the vehicle. Both end portions of each component mounting member are bent downward and fixed to the side members. Among the component mounting members, the fixing point for fixing the control unit is disposed above the fixing point for fixing to the side member.

In the event of a collision, when an obstacle interferes with the front end of the control unit and a collision input acts on the control unit, a rotational moment is applied to the fixing point of the component mounting member fixed to the side member, and the component mounting member Rotates backwards. As a result, the control unit moves backward, the interference between the obstacle and the control unit is reduced, and the control unit is damaged.
Japanese Patent Laid-Open No. 9-52534

  However, in the component mounting structure in the motor room described in the above-mentioned Japanese Patent Application Laid-Open No. 9-52534, when another vehicle mounted device is arranged on the rear side of the control unit, the control unit and the vehicle mounted May interfere with equipment.

  The present invention has been made in view of the problems as described above, and its purpose is to suppress a vehicle-mounted device such as an inverter from colliding with other members or the like even during a vehicle collision, An object of the present invention is to provide a fixing structure for a vehicle-mounted device capable of suppressing damage to the vehicle-mounted device such as an inverter.

  The vehicle-mounted device fixing structure according to the present invention is fixed to a vehicle main body in which a storage chamber capable of accommodating the vehicle-mounted device is formed, and includes a mounting table on which the vehicle-mounted device is mounted and a vehicle-mounted device on the mounting table. And a guide member that extends toward the rear side of the vehicle main body and inclines toward the upper side of the rear member that is provided at a distance to the rear side with respect to the vehicle-mounted device as it goes rearward from the vehicle-mounted device. Is provided. In addition, the vehicle-mounted device fixing structure is fitted in a recess formed in the guide member, and the vehicle-mounted device is pressed backward from the front side of the vehicle body to release the connection state with the guide member. It includes a connecting portion that is connected to the guide member as much as possible, and includes a connecting member that connects the guide member and the vehicle-mounted device.

  Preferably, the apparatus further includes a fixing part that includes a shaft part fixed to the guide member and a head part connected to the shaft part and having a larger diameter than the shaft part, and fixing the connecting part to the guide member. . The connecting portion is formed with a slit extending in the front-rear direction of the vehicle main body, and having one end extending to the end of the connecting portion on the vehicle main body front side, and the shaft portion of the fixture is inserted into the slit. And a head part presses and fixes the connection part to a guide member by pressing the part adjacent to a slit among connection parts.

  Preferably, of the inner surface of the recess, the back surface portion located on the rear side of the vehicle body is a first inclined surface that is inclined upward as it goes from the front side to the rear side of the vehicle body. Of the outer peripheral surface, the back surface portion located on the rear side of the vehicle body is a second inclined surface corresponding to the first inclined surface. Preferably, the guide member has guide portions that are provided on both sides of the recessed portion and extend in the extending direction of the guide member. Preferably, the vehicle mounting device further includes a fixing member that fixes the vehicle mounting device to the mounting table so that the connection state between the vehicle mounting device and the mounting table can be released when the vehicle mounting device is pressed toward the rear of the vehicle main body. Preferably, the vehicle-mounted device includes an inverter.

  According to the structure for fixing a vehicle-mounted device according to the present invention, it is possible to reduce the collision between the vehicle-mounted device and another member even when the vehicle collides, and to prevent the vehicle-mounted device from being damaged. be able to.

  A vehicle mounting device fixing structure according to the present embodiment will be described with reference to FIGS.

  Note that in the embodiments described below, when referring to the number, amount, and the like, the scope of the present invention is not necessarily limited to the number, amount, and the like unless otherwise specified. In the following embodiments, each component is not necessarily essential for the present invention unless otherwise specified. In addition, when there are a plurality of embodiments below, it is planned from the beginning to appropriately combine the features of each embodiment unless otherwise specified.

  FIG. 1 is a block diagram showing a schematic configuration of a hybrid vehicle according to an embodiment of the present invention. As shown in FIG. 1, the hybrid vehicle 200 includes a vehicle main body 101 such as a monocoque body and a plurality of vehicle-mounted devices housed in an engine compartment 201 defined in the vehicle main body 101. The hybrid vehicle 200 includes an engine 100, a motor generator 350, a power split mechanism 300, a differential mechanism 400, a drive shaft 500, driving wheels 600L and 600R as front wheels, and a PCU (Power Control Unit) 700. And an air cleaner 800, a battery 1000, and an A / C (air / conditioner) compressor 1100.

  Engine 100, motor generator 350, power split mechanism 300, PCU 700, and A / C compressor 1100 are disposed in engine compartment 201. Motor generator 350 and PCU 700 are connected by a cable 900A. PCU 700 and battery 1000 are connected by a cable 900B. PCU 700 and A / C compressor 1100 are connected by a cable 900C. A power output device including engine 100 and motor generator 350 is connected to differential mechanism 400 via power split mechanism 300. Differential mechanism 400 is coupled to drive wheels 600L and 600R via drive shaft 500.

  Motor generator 350 is a three-phase AC synchronous motor generator, and generates driving force by AC power received from PCU 700. Motor generator 350 is also used as a generator when the hybrid vehicle 200 decelerates, etc., generates AC power by its power generation action (regenerative power generation), and outputs the generated AC power to PCU 700.

  PCU 700 converts the DC voltage received from battery 1000 into an AC voltage, and controls motor generator 350 for driving. PCU 700 charges battery 1000 by converting the AC voltage generated by motor generator 350 into a DC voltage.

  Power split device 300 includes, for example, a planetary gear (not shown). The power output from engine 100 and / or motor generator 350 is transmitted from power split mechanism 300 to drive shaft 500 via differential mechanism 400. The driving force transmitted to the drive shaft 500 is transmitted as a rotational force to the drive wheels 600L and 600R to cause the vehicle to travel. Thus, motor generator 350 operates as an electric motor.

  On the other hand, when the vehicle is decelerated, motor generator 350 is driven by drive wheels 600L, 600R or engine 100. At this time, the motor generator 350 operates as a generator. The electric power generated by motor generator 350 is stored in battery 1000 via an inverter in PCU 700.

  FIG. 2 is a circuit diagram showing a configuration of a main part of PCU 700. Referring to FIG. 2, PCU 700 includes a converter 710, an inverter 720, a control device 730, capacitors C1 and C2, power supply lines PL1 to PL3, and output lines 740U, 740V, and 740W. Converter 710 is connected between battery 1000 and inverter 720, and inverter 720 is connected to motor generator 350 via output lines 740U, 740V, and 740W.

  Battery 1000 connected to converter 710 is, for example, a secondary battery such as nickel metal hydride or lithium ion. Battery 1000 supplies the generated DC voltage to converter 710 and is charged by the DC voltage received from converter 710.

  Converter 710 includes power transistors Q1 and Q2, diodes D1 and D2, and a reactor L. Power transistors Q1, Q2 are connected in series between power supply lines PL2, PL3, and receive a control signal from control device 730 as a base. Diodes D1 and D2 are connected between the collector and emitter of power transistors Q1 and Q2, respectively, so that current flows from the emitter side to the collector side of power transistors Q1 and Q2. Reactor L has one end connected to power supply line PL1 connected to the positive electrode of battery 1000, and the other end connected to a connection point of power transistors Q1 and Q2.

  Converter 710 boosts the DC voltage received from battery 1000 using reactor L, and supplies the boosted voltage to power supply line PL2. Converter 710 steps down the DC voltage received from inverter 720 and charges battery 1000.

  Inverter 720 includes a U-phase arm 750U, a V-phase arm 750V, and a W-phase arm 750W. Each phase arm is connected in parallel between power supply lines PL2 and PL3. U-phase arm 750U includes power transistors Q3 and Q4 connected in series, V-phase arm 750V includes power transistors Q5 and Q6 connected in series, and W-phase arm 750W includes power transistors connected in series. Transistors Q7 and Q8 are included. Diodes D3 to D8 are respectively connected between the collector and emitter of power transistors Q3 to Q8 so that current flows from the emitter side to the collector side of power transistors Q3 to Q8. A connection point of each power transistor in each phase arm is connected to an anti-neutral point side of each phase coil of motor generator 350 via output lines 740U, 740V, and 740W.

  Inverter 720 converts a DC voltage received from power supply line PL <b> 2 into an AC voltage based on a control signal from control device 730, and outputs the AC voltage to motor generator 350. Inverter 720 rectifies the AC voltage generated by motor generator 350 into a DC voltage and supplies it to power supply line PL2.

  Capacitor C1 is connected between power supply lines PL1 and PL3, and smoothes the voltage level of power supply line PL1. Capacitor C2 is connected between power supply lines PL2 and PL3, and smoothes the voltage level of power supply line PL2.

  Control device 730 calculates each phase coil voltage of motor generator 350 based on the motor torque command value, each phase current value of motor generator 350, and the input voltage of inverter 720, and based on the calculation result, power transistors Q3-3. A PWM (Pulse Width Modulation) signal for turning on / off Q8 is generated and output to inverter 720.

  Control device 730 calculates the duty ratio of power transistors Q1 and Q2 for optimizing the input voltage of inverter 720 based on the motor torque command value and the motor rotation speed described above, and power based on the calculation result. A PWM signal for turning on / off the transistors Q 1 and Q 2 is generated and output to the converter 710.

  Further, control device 730 controls switching operations of power transistors Q <b> 1 to Q <b> 8 in converter 710 and inverter 720 in order to charge battery 1000 by converting AC power generated by motor generator 350 into DC power.

  In PCU 700, converter 710 boosts a DC voltage received from battery 1000 based on a control signal from control device 730 and supplies the boosted voltage to power supply line PL2. Inverter 720 receives the DC voltage smoothed by capacitor C <b> 2 from power supply line PL <b> 2, converts the received DC voltage into an AC voltage, and outputs the AC voltage to motor generator 350.

  Inverter 720 converts the AC voltage generated by the regenerative operation of motor generator 350 into a DC voltage and outputs the DC voltage to power supply line PL2. Converter 710 receives the DC voltage smoothed by capacitor C2 from power supply line PL2, and steps down the received DC voltage to charge battery 1000.

  Here, the voltage supplied from the battery 1000 to the inverter 720 via the converter 710 is about 600 V, and it is necessary to protect the inverter even in the event of a collision.

  FIG. 3 is a plan view schematically showing an arrangement state of the engine 100, the inverter 720, and the like in the engine compartment 201. As shown in FIG. Referring to FIG. 3, a vehicle main body 101 is defined on a rear side with respect to a passenger compartment that can accommodate an occupant, an engine compartment 201 formed on the front side of the passenger compartment, and the passenger compartment. It has a luggage room.

  In the engine compartment 201, a plurality of vehicle-mounted devices such as the engine 100 and the inverter 720 are mounted. The engine 100 is disposed so as to be offset to one side surface of the vehicle main body 101 with respect to the center portion in the width direction of the engine compartment 201. The end of the engine 100 is supported by the engine mount 191.

  Furthermore, a sustainer 190 is provided on both side surfaces of the vehicle main body 101, and each sustainer 190 is arranged in the width direction of the vehicle main body 101. Inverter 720 is arranged on the front side of vehicle body 101 with respect to engine mount 191 and sustainer 190.

  4 shows a plan view of the fixing structure 10 of the inverter 720, and FIG. 5 shows a side view of the fixing structure 10. As shown in FIG. As shown in FIGS. 4 and 5, the fixing structure 10 has a rear side of the vehicle main body 101 with respect to the mounting table 211 having the inverter 720 fixed on the upper surface and the inverter 720 mounted on the mounting table 211. And a guide member 170 inclined toward the upper side of the sustainer 190 and the engine mount 191 that are spaced apart from the inverter 720 toward the rear from the inverter 720 and the guide member 170. When the inverter 720 is pressed from the front side toward the rear side of the vehicle main body 101, the mounting portion 151 connected to the guide member 170 is releasable. In addition, a connecting member 150 that connects the guide member 170 and the inverter 720 is provided.

  In the fixed structure 10, when another vehicle or the like collides from the front side of the hybrid vehicle 200, another on-vehicle device disposed on the front side of the inverter 720 or the deformed vehicle main body 101 presses the inverter 720. Then, when the pressing force applied to the inverter 720 becomes equal to or higher than a predetermined value, the connection fixing state between the connection member 150 and the guide member 170 is released. As a result, the inverter 720 can be retracted toward the rear side of the vehicle main body 101, so that the inverter 720 can be prevented from being damaged by other vehicle-mounted equipment disposed on the front side of the inverter 720.

  When the inverter 720 starts to be displaced rearward, the inverter 720 rides on the upper surface of the guide member 170 and is guided along the guide member 170. As described above, the guide member 170 is inclined toward the upper side of the sustainer 190 and the engine mount 191, so that the inverter 720 is guided toward the upper side of the sustainer 190 and the engine mount 191. Thereby, even if the inverter 720 is displaced rearward, it is possible to prevent the inverter 720 from colliding with the sustainer 190 or the engine mount 191 disposed on the rear side with respect to the inverter 720, thereby protecting the inverter 720. be able to. Thus, even when the hybrid vehicle 200 collides with another vehicle, the inverter 720 can be protected and the inverter 720 can be prevented from being damaged.

  Further, when the inverter 720 is arranged on the mounting table 211, the connecting member 150 connected to the inverter 720 is mounted in the recess 173 formed in the guide member 170, thereby easily positioning the inverter 720. be able to. For this reason, the assembly process of the inverter 720 can be simplified.

  The side member 110 to which the mounting table 211 is fixed is a part of the vehicle main body 101 that defines the engine compartment 201 shown in FIG. 2 and is disposed on the side surface of the vehicle main body 101.

  In FIG. 4, the mounting table 211 includes a flat mounting surface 251 to which the inverter 720 is fixed, and an overhanging portion 212 that is provided at one end of the mounting surface 251 and projects on the side member 110. I have. The overhanging portion 212 is fixed to the side member 110 by bolts 213 and bolts 214. A support member that extends over the lower surface of the mounting table 211 and the side surface of the side member 110 and supports the lower surface of the mounting table 211 with the side member 110 may be further disposed. In FIG. 5, the guide member 170 includes a flat portion 172 fixed to the mounting table 211 with bolts 176, and an inclined portion 171 connected to the end of the flat portion 172 on the rear side of the vehicle body 101. .

  The inclined portion 171 is inclined so as to be directed upward from the front side to the rear side of the vehicle main body 101, and extends toward the upper side of the sustainer 190 and the engine mount 191. Thus, the guide member 170 extends from the lower side of the inverter 720 to the rear side of the vehicle main body 101 than the inverter 720, and is further bent upward in the middle. In the inclined portion 171, a recess 173 is formed on the rear side of the inverter 720, and the mounting portion 151 is mounted.

  The guide member 170 is preferably formed higher than the rigidity of the mounting table 211 and is difficult to deform.

  Here, in FIG. 4, the fixing structure 10 further includes a fixing mechanism 160 that fixes the inverter 720 to the mounting table 211, and a fixing member 120 that connects and fixes the inverter 720 and the front member 111. The fixing mechanism 160 includes fixing members 130 and 140 for connecting and fixing the inverter 720 and the mounting table 211, and a connecting member 150 for connecting and fixing the inverter 720 and the guide member 170.

  The fixing member 130 is connected to the table fixing portion 131 provided on the end portion opposite to the overhanging portion 212 of the mounting table 211 and the front end portion of the table fixing portion 131, and is fixed to the front surface 721 of the inverter 720. And an inverter fixing portion 132.

  The inverter fixing portion 132 is bent from the front end portion of the table fixing portion 131 toward the front surface 721 of the inverter 720, and is fixed to the front surface 721 of the inverter 720 with a bolt 135.

  The table fixing part 131 is disposed on the end of the mounting table 211 opposite to the overhanging part 212 and is fixed by bolts 134. Thereby, the front surface 721 of the inverter 720 and the end of the mounting table 211 are connected and fixed. The table fixing portion 131 is formed with a through hole into which the bolt 134 is inserted, and a notch 133 extending from the through hole toward the front of the vehicle main body 101 and reaching the front end portion of the table fixing portion 131. Yes. Here, the width of the notch 133 is narrower than the width of the head portion of the bolt 134 and larger than the diameter of the shaft portion of the bolt 134, and the shaft portion of the bolt 134 passes through the notch portion 133. It is possible to slide.

  For this reason, for example, when the inverter 720 is pressed toward the rear from the front side of the vehicle main body 101 with a predetermined pressing force or more, the table fixing portion 131 and the inverter fixing portion 132 are integrated with the inverter 720 toward the rear. On the other hand, the bolt 134 remains on the mounting table 211.

  That is, when the table fixing portion 131 and the inverter fixing portion 132 are displaced rearward, the bolts 134 are removed from the table fixing portion 131 by passing through the notches 133, and the mounting table 211 by the fixing member 130. And the fixed state of the inverter 720 can be released. In a normal state, the table fixing portion 131 and the end portion of the mounting table 211 are pressure-bonded by the head portion of the bolt 134 and the nut screwed to the shaft portion of the bolt 134.

  The fixing member 140 connects and fixes the overhanging portion 212 of the mounting table 211 and the side surface 724 of the inverter 720. The fixing member 140 includes a side member fixing portion 144 disposed on the overhanging portion 212. The side member fixing portion 144 is provided with a rising portion 142 and a rising portion 143 that are fixed to the side surface 724.

  The upright portion 142 and the upright portion 143 are provided to be spaced apart from each other in the front-rear direction of the vehicle body 101, and are fixed to the side surface 724 of the inverter 720 by a plurality of bolts 146, 147, respectively.

  The side member fixing portion 144 is fixed to the overhanging portion 212 and the side member 110 by bolts 148. The side member fixing portion 144 is formed with a through hole into which the shaft portion of the bolt 148 is inserted. Further, the side member fixing portion 144 reaches the front end portion of the side member fixing portion 144 from the through hole. A notch 145 is formed. The width of the notch 145 is smaller than the diameter of the head part of the bolt 148 and larger than the diameter of the shaft part of the bolt 148, and the shaft part of the bolt 148 slides in the notch part 145. It is possible.

  Therefore, for example, when the inverter 720 is pressed with a predetermined pressing force from the front side to the rear side of the vehicle main body 101, the side member fixing portion 144 and the upright portions 143 and 142 are integrated with the inverter 720. The bolt 148 remains on the side member 110 while being displaced to the rear side of the vehicle body 101. That is, while the bolt 148 passes through the notch 145 and remains on the side member 110, the side member fixing portion 144 and the upright portions 143 and 142 are displaced rearward, so that the inverter 720 by the fixing member 140 and the side member 110. And the connection fixed state with the mounting base 211 can be released. In a normal state, the overhanging portion 212, the side member fixing portion 144, and the side member 110 are pressure-bonded and fixed by the head portion of the bolt 148.

  The fixing member 120 has one end fixed to the front member 111, one end fixed to the connecting part 121 by a bolt 123, and the other end fixed to the back surface 725 of the inverter 720. Connected portion 122. The back surface 725 of the inverter 720 and the front member 111 are connected and fixed by the fixing member 120. When a predetermined pressing force is applied to the inverter 720 from the front side to the rear side of the vehicle main body 101, the shaft portion of the bolt 123 is broken, and the fixing member 120 fixes the inverter 720 and the front member 111. The state can be released. In addition, as above-mentioned, it is not restricted to the case where the volt | bolt 123 fractures | ruptures, For example, by forming a notch part in the connection part 122, even if it can cancel | release the connection state of the connection part 121 and the connection part 122 by the volt | bolt 123. Good.

  FIG. 6 is a cross-sectional view including the connecting member 150 and the periphery thereof, and FIG. 7 is a plan view of the connecting member 150. As shown in FIG. 6 and FIG. 7, the connecting member 150 that connects the guide member 170 and the back surface 725 of the inverter 720 includes a mounting portion 151 that is fitted in a recess 173 formed in the inclined portion 171, and A flat plate-like inverter fixing portion 155 fixed to the back surface 725 of the inverter 720 by a bolt 154 and a connecting portion 152 that connects the inverter fixing portion 155 and the mounting portion 151 are provided.

  The inner peripheral surface of the concave portion 173 includes a bottom surface 175 having a substantially horizontal plane shape, and an inclined surface 174 connected to the rear surface side of the vehicle main body 101 with respect to the bottom surface 175. The inclined surface 174 is inclined upward as it goes rearward of the vehicle main body 101. And the back surface 158 located in the back side of the vehicle main body 101 among the surface of the mounting part 151 is also inclined so as to correspond to the inclined surface 174, and goes upward as it goes to the rear side of the vehicle main body 101. So as to be inclined.

  Then, when the inverter 720 is mounted on the mounting table 211, for example, the inverter 720 can be easily positioned by arranging the mounting portion 151 fixed to the inverter 720 so as to be mounted in the recess 173. Can do. Thereby, fixing structure 10 of inverter 720 can be easily assembled, and the assembly process of hybrid vehicle 200 can be simplified.

  Here, the mounting portion 151 is fixed to the inclined portion 171 by a bolt 153, and the connecting member 150 fixes the inverter 720 to the inclined portion 171.

  The mounting portion 151 has a slit 156 into which the shaft portion of the bolt 153 is inserted. The slit 156 extends in the front-rear direction of the vehicle main body 101, reaches the end of the slit 156 on the front side of the vehicle main body 101, and opens toward the front side of the vehicle main body 101.

  The width of the slit 156 is smaller than the width of the head portion 153 a of the bolt 153 and larger than the shaft portion 153 b of the bolt 153, and the shaft portion 153 b of the bolt 153 can slide in the slit 156. .

  A step portion 161 capable of supporting the head portion 153 a of the bolt 153 is formed in a portion adjacent to the slit 156 in the mounting portion 151. Similarly to the slit 156, the step 161 extends in the front-rear direction of the vehicle main body 101 and reaches the front end of the mounting portion 151 on the front side of the vehicle main body 101. Then, the shaft portion 153b of the bolt 153 is screwed to the nut 153c provided on the lower surface side of the inclined portion 171, so that the mounting portion 151 and the inclined portion 171 are sandwiched between the nut 153c and the head portion 153a. Fixed.

  Here, when the inverter 720 is pressed toward the rear from the front side of the vehicle main body 101, the mounting portion 151 is also pressed toward the rear of the vehicle main body 101. At this time, the back surface 158 is inclined corresponding to the inclined surface 174, and can be displaced along the inclined surface 174. Furthermore, when the mounting portion 151 is displaced rearward, the bolt 153 relatively passes through the slit 156 and the mounting portion 151 is detached from the bolt 153.

  Thus, the inverter 720 is pressed from the front side to the rear side of the vehicle main body 101, so that the connection state between the inclined portion 171 and the inverter 720 by the connection member 150 is released. In particular, since the back surface portion of the recess 173 is an inclined surface 174, and the back surface 158 of the mounting portion 151 is also an inclined surface corresponding to the inclined surface 174, the mounting portion 151 is easily detached from the recess 173, When a pressing force is applied to the inverter 720 toward the rear of the vehicle main body 101, the mounting portion 151 is satisfactorily detached from the recess 173. Therefore, the inverter 720 can be retracted backward before the pressing force applied to the inverter 720 increases.

  FIG. 8 is a front view of the inclined portion 171. As shown in FIG. 8, the inclined portion 171 includes a bottom portion 178 formed in a flat surface shape, and guide portions 177 formed on both side portions of the bottom portion 178. The guide portion 177 extends at least from the end portion on the inverter 720 side to the other end portion of the inclined portion 171, and is disposed on both sides of the recessed portion 173. The width between the guide portions 177 is equal to or slightly wider than the width of the mounting portion 151, and the mounting portion 151 is fitted between the guide portions 177 so as to be slidable.

  In the vehicle-mounted device fixing structure 10 configured as described above, the behavior of the inverter 720 when another vehicle or the like collides with the front surface of the hybrid vehicle 200 will be described with reference to FIG. 9 and FIGS. 4 to 8 as appropriate. explain.

  FIG. 9 is a side view showing the inverter 720 and the fixing structure 10 of the inverter 720 when another vehicle or the like collides with the front surface of the hybrid vehicle 200.

  In FIG. 9, when another vehicle or the like collides with the front side of the hybrid vehicle 200, the front member 111 is deformed and other on-vehicle equipment or the like located on the front side of the inverter 720 is displaced rearward. To do. When the inverter 720 is pressed to the rear side of the vehicle main body 101 by another vehicle-mounted device disposed on the front side of the inverter 720, the fixing mechanism 160, the fixing member 120, and the connecting member 150 are displaced rearward. The fixed state of the inverter 720 is released, and the inverter 720 is displaced toward the rear of the vehicle body 101. The rear end side of the inverter 720 reaches the inclined portion 171.

  As described above, when the inverter 720 is displaced toward the rear of the vehicle main body 101, the mounting portion 151 is displaced upward along the inclined surface 174 in FIG. Then, when the mounting portion 151 comes out of the recess 173, it fits between the guide portions 177 and is guided along the guide portions 177.

  Then, the mounting portion 151 is guided along the guide portion 177, so that the inverter 720 coupled to the mounting portion 151 is also guided along the guide portion 177. The inclined portion 171 causes the sustainer 190 and the engine mount 191 to be guided. It is guided toward the upper side of. As described above, the mounting portion 151 fixed to the inverter 720 is fitted between the guide portions 177 and guided along the guide portions 177, so that the inverter 720 can be prevented from dropping from the guide member 170.

  In addition, since the rigidity of the guide member 170 is higher than the mounting table 211, even if the inverter 720 moves on the inclined portion 171 at the time of a collision, the guide member 170 is suppressed from being deformed, and the inverter 720 It can be guided toward the upper side of the sustainer 190 and the engine mount 191.

  Thus, even if another vehicle or the like collides from the front surface of the hybrid vehicle 200, the inverter 720 can be retracted toward the rear of the vehicle main body 101, and another vehicle mounted on the front side of the inverter 720 is mounted. A device or a mounting member can be prevented from applying a large impact force to the inverter 720, and the inverter 720 can be prevented from being damaged.

  Further, since the inverter 720 can be displaced upward while being directed to the rear of the vehicle main body 101, the inverter 720 can be connected to other vehicle-mounted devices and mounting members disposed on the rear side of the vehicle main body 101 with respect to the inverter 720. 720 can be prevented from colliding with the inverter 720, and the inverter 720 can be prevented from being damaged. As described above, the connecting member 150 has both a function of guiding the inverter 720 at the time of a collision and a function of fixing the inverter 720 to the guide member 170 in a normal state. The number of parts can be reduced as compared with the case where the member and the fixing member are provided, and the fixing structure 10 can be made compact and lightweight.

  In the vehicle-mounted device fixing structure according to the present embodiment, the inverter 720 fixing structure has been described. However, the present invention is not limited to this and may be applied to other vehicle-mounted devices. In particular, it is suitable for a fixing structure of an electric device such as a converter, a reactor, a capacitor, or a battery.

  Although the embodiment of the present invention has been described above, it should be considered that the embodiment disclosed this time is illustrative and not restrictive in all respects. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. Furthermore, the above numerical values are examples, and are not limited to the above numerical values and ranges.

  The present invention is suitable for a vehicle-mounted device fixing structure.

1 is a block diagram showing a schematic configuration of a hybrid vehicle according to an embodiment of the present invention. It is a circuit diagram which shows the structure of the principal part of PCU. It is a top view which shows typically the arrangement state of an engine, an inverter, etc. in an engine compartment. It is a top view of the fixing structure of an inverter. It is a side view of a fixing structure. It is sectional drawing containing a connection member and its periphery. It is a top view of a connection member. It is a front view of an inclined part. It is a side view which shows the fixing structure of an inverter when another vehicle etc. collide with the front surface of a hybrid vehicle.

Explanation of symbols

  100 engine, 101 vehicle body, 110 side member, 111 front member, 120 fixing member, 121 connecting portion, 122 connecting portion, 123 bolt, 124 bolt, 130 fixing member, 131 table fixing portion, 132 inverter fixing portion, 133 notch , 134 bolts, 135 bolts, 140 fixing members, 142, 143 upright parts, 144 side member fixing parts, 145 notch parts, 150 connecting members, 151 mounting parts, 152 connecting parts, 155 inverter fixing parts, 156 slits, 160 fixing mechanisms , 161 Stepped portion, 170 Guide member, 171 Inclined portion, 172 Flat portion, 173 Recessed portion, 174 Inclined surface, 175 Bottom surface, 177 Guide portion, 178 Bottom portion, 191 Engine mount, 190 Sustawa, 200 Hybrid vehicle, 2 1 engine compartment, 211 mounting table 720 inverter.

Claims (6)

A mounting table fixed to a vehicle body in which a storage chamber capable of storing a vehicle-mounted device is formed and on which the vehicle-mounted device is mounted;
Extending to the rear side of the vehicle body from the vehicle-mounted device on the mounting table, and being provided at a distance from the vehicle-mounted device at the rear side as it goes rearward from the vehicle-mounted device. A guide member inclined toward the upper side of the rear member formed,
Connected to the guide member so that the connection state with the guide member can be released by being fitted in a recess formed in the guide member and the vehicle-mounted device being pressed backward from the front side of the vehicle body. A vehicle-mounted device fixing structure, comprising: a connecting portion that includes a connecting member that connects the guide member and the vehicle-mounted device. A shaft portion that is fixed to the guide member; and a head portion that is connected to the shaft portion and has a larger diameter than the shaft portion, and further includes a fixture that fixes the connecting portion to the guide member,
The connecting portion is formed with a slit extending in the front-rear direction of the vehicle body, and having one end extending to the end of the connecting portion on the vehicle body front side,
The shaft portion of the fixture is inserted into the slit, and the head portion presses and fixes the connecting portion to the guide member by pressing a portion of the connecting portion adjacent to the slit. 1 is a structure for fixing on-vehicle equipment.   Of the inner surface of the hollow portion, a back surface portion located on the rear side of the vehicle main body is a first inclined surface that is inclined upward as it goes from the front side to the rear side of the vehicle main body. 3. The vehicle-mounted device fixing structure according to claim 1, wherein a rear surface portion of the outer peripheral surface located on the rear side of the vehicle main body is a second inclined surface corresponding to the first inclined surface. 4. .   The vehicle-mounted device fixing structure according to any one of claims 1 to 3, wherein the guide member includes guide portions that are provided on both sides of the hollow portion and extend in an extending direction of the guide member.   The vehicle mounting device further includes a fixing member that fixes the vehicle mounting device to the mounting table so that the connection state between the vehicle mounting device and the mounting table can be released when the vehicle mounting device is pressed toward the rear of the vehicle body. The fixing structure for a vehicle-mounted device according to any one of claims 1 to 4.   The vehicle mounted device fixing structure according to any one of claims 1 to 5, wherein the vehicle mounted device includes an inverter.

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