JP5308308B2 - Engine generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an engine generator capable of restraining the generation of heating irregularity and facilitating the detachment of a space heater. <P>SOLUTION: The engine generator 1 includes an engine E and a generator G disposed in an appliance chamber 3. An electricity storage device 60 with no blackout function comprising an electricity storage control device 16 for power supply to an EDLC 13 and the control of the charging and discharging of the EDLC 13 is disposed in an electricity storage chamber 2. The appliance chamber 3 and the electricity storage chamber 2 are provided as individual housings of equivalent installation areas. The electricity storage chamber 2 is mounted to the upper surface of the appliance chamber 3 with the appliance chamber 3 and the electricity storage chamber 2 covered with a package 10. The EDLC 13 is disposed on the downward entire surface of the electricity storage chamber 2. The electricity storage control device 16 is disposed above the electricity storage chamber 2. A plurality of space heaters 40 are provided in a gap with respect to the appliance chamber 3 below the EDLC 13 at equal intervals in the longitudinal direction of the package 10 over the shorter direction of the package 10. A heat shield 41 is provided between the space heaters 40 and the EDLC 13. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a technology of an engine generator provided with a package composed of an equipment room and a power storage room.

2. Description of the Related Art Conventionally, an engine generator that is used as a power source for road facilities and outdoor work facilities and that can also be used as an emergency power source facility is known. The engine generator is equipped with a power storage device to supply power instantaneously at the time of power failure or voltage drop. In addition, the engine generator includes a package composed of an equipment room that houses an engine, a generator, and the like and a power storage room that houses a power storage device, and the power storage room is installed on the upper surface of the equipment room (for example, Patent Document 1).
The engine generator is provided with a space heater for heating the EDLC so that the EDLC constituting the power storage device can always be used when used in a cold environment. In the engine generator, the space heater is provided on the side of the EDLC.

JP 2006-46238 A

However, when the space heater is provided on the side of the power storage body, the side surface facing the space heater of the EDLC is heated more than the side surface not facing the space heater, and heating may be uneven.
Further, when the space heater is disposed on the bottom surface of the EDLC, it is difficult to remove the space heater because the gap between the mounting frame and the EDLC is narrow.

  Then, in view of the subject which concerns, this invention provides the engine generator which can suppress generation | occurrence | production of the nonuniformity of a heating and can remove a space heater easily.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, according to the first aspect, the engine and the generator are arranged in the equipment room, and the power storage device is provided with a power storage main body and control means for controlling power supply and charge / discharge of the power storage main body. The device room and the electricity storage room are configured in separate casings with the same installation area, the electricity storage room is installed on the upper surface of the equipment room, the device room and the electricity storage room are covered with a package, and the electricity storage In the engine generator in which the main body is disposed on the entire lower surface of the power storage chamber and the control means is disposed on the upper side of the power storage chamber, a plurality of space heaters are packaged at equal intervals in the longitudinal direction of the package in the gap with the equipment chamber below the power storage main body. The heat shield plate is provided between the space heater and the power storage main body.

  In claim 2, the heat shield plate has an integral shape facing the heater installation surface, and the width dimension of the heat shield plate and the heater installation surface is shorter than the distance between the heat shield plate and the heater installation surface. .

  According to a third aspect of the present invention, the power storage main body is supported by a frame, and mounting surfaces are formed at both ends of the heat shield plate in the lateral direction of the package, one mounting surface is fixed inside the frame, and the other mounting surface is fixed to the frame. It is fixed on the outside.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect of the present invention, it is possible to warm the ambient temperature while avoiding direct heating of the power storage body with the radiant heat of the space heater, and to suppress the occurrence of uneven heating.

  In claim 2, since the heater installation surface is rotated in the vertical direction, a gap is formed when the space heater is inserted between the lower end of the power storage body and the lower part of the frame or when the space heater is pulled out from the gap. Insertion and withdrawal can be easily performed.

  According to the third aspect, the space heater can be easily inserted and pulled out from the side fixed outside the frame.

The front view which showed the whole structure of the engine generator which concerns on one Embodiment of this invention. The rear view which showed the whole structure of the engine generator which concerns on one Embodiment of this invention. The front view which showed the internal structure of the engine generator. The perspective view which showed the ventilation structure of the electrical storage chamber. The perspective view of another direction similarly. The figure which shows a space heater and a heat shield. (A) Front perspective view. (B) Rear perspective view. Side surface partial sectional drawing which shows a heat-shielding plate, EDLC, and the attachment frame lower part. (A) The figure which shows the state before inserting a heat shield in between EDLC and the attachment frame lower part. (B) The figure which shows the state which inserted the heat shield plate between EDLC and the attachment frame lower part. Side surface partial sectional drawing which shows a heat-shielding board and a mounting frame lower part. (A) The figure which shows the state before attaching a heat shield to the attachment frame lower part. (B) The figure which shows the state which moved the heat shield plate downward from the state of (a). (C) The figure which shows the state which moved the heat shield board from the state of (b) ahead. (D) The figure which shows the state which attached the heat shield to the attachment frame lower part. The single phase connection diagram which showed the connection of the engine generator. Schematic which showed the electric power feeding pattern of an engine generator.

Next, embodiments of the invention will be described.
The external appearance of the engine generator 1 which is one Embodiment of an electric equipment is demonstrated using FIG. 1 and 2. FIG.
The engine generator 1 is provided separately from the power storage chamber 2 and the power storage chamber 2, and includes an equipment room 3 disposed below the power storage room 2, and left and right side surfaces of the equipment room 3 (hereinafter referred to as an intake side surface 3 a). An intake hood 4 that opens to the lower side in the vertical direction is provided, and an exhaust hood 5 that opens to the lower side in the vertical direction that covers the other side surface (hereinafter referred to as the exhaust side surface 3b) facing the intake side surface 3a. The upper surface of the equipment chamber 3 and the bottom surface of the electricity storage chamber 2 have the same area.

  As shown in FIG. 1, the power storage chamber 2 and the equipment chamber 3 are covered with a package 10 formed of a substantially rectangular parallelepiped. A rectangular parallelepiped short side surface (hereinafter referred to as an intake side surface 3a) of the package 10 is provided with an intake hood 4 that opens downward in the vertical direction. An exhaust hood 5 opened on the lower side is provided.

<Power storage room>
The power storage chamber 2 of the engine generator 1 will be described with reference to FIGS. 1 to 5. 4 and 5 omit the package 10 covering the electricity storage chamber 2 and illustrate the attachment frame 11 away from the support frame 12.
As shown in FIGS. 3 and 5, the power storage chamber 2 of the engine generator 1 has a support frame 12, 12, 12, and a frame-like mounting frame 11 installed on the support frames 12, 12, 12, Is arranged.

  As shown in FIGS. 3, 4, and 5, the attachment frame 11 is partitioned into an upper part and a lower part by a reinforcing member. Under the attachment frame 11, electric double layer capacitors (hereinafter referred to as EDLC) 13 and 13 as power storage bodies constituting the power storage device 60 (see FIG. 9) are arranged with a gap below. A mounting plate 15 that partitions the front side and the back side is provided at the upper part of the mounting frame 11 so as to extend in the left-right direction (perpendicular direction of the intake side surface 3a and the exhaust side surface 3b) at the front and rear central portions. On the front side of the attachment plate 15, an electrical component box 17 that houses electrical components of the power storage control device 16 and circuit breakers 18, 19, 20, and 21 are attached. The EDLCs 13 and 13 are installed below the inside of the electricity storage chamber 2, while the electrical component box 17 is installed above the inside of the electricity storage chamber 2. On the back side of the mounting plate 15, electrical component cooling fins 23 housed in the electrical component box 17 and a transformer 24 are mounted.

  Further, as shown in FIG. 1, a front package door 25 is provided on the front side of the engine generator 1 at a portion covering the power storage chamber 2 of the package 10. At the lower part of the front package door 25, intake ports 26 and 26 are provided, respectively.

  As shown in FIG. 2, a rear package door 28 is provided on the back side of the engine generator 1 in a portion of the package 10 that covers the power storage chamber 2. Ventilation openings 29 and 29 are provided in the upper part of the rear package door 28, respectively.

As shown by the solid line arrows in FIGS. 4 and 5, a ventilation structure for ventilating the inside of the power storage chamber 2 is formed by driving the ventilation fans 36 and 36. That is, the air sucked from the intake ports 26 and 26 is sent to the lower part of the attachment frame 11.
The air sent to the lower part of the mounting frame 11 cools the EDLCs 13 and 13 by passing through the front surface, both side surfaces, the upper surface, and the bottom surface of the EDLCs 13 and 13, passes through the upper part of the mounting frame 11, and the ventilation port 29・ Exhaust from 29 to outside.

As shown in FIGS. 4 and 5, a plurality of space heaters 40 are provided below the EDLCs 13 and 13 in the gap with the upper surface of the equipment chamber 3.
The plurality of space heaters 40 are devices that heat the EDLCs 13 and 13 when the temperature is low, and are formed in a rectangular plate shape. The plurality of space heaters 40, 40 are provided in the short direction so that the longitudinal direction of the rectangle is substantially parallel to the short direction of the mounting frame 11. By comprising in this way, surrounding temperature can be warmed avoiding overheating EDLC13 * 13 directly with the radiant heat of a space heater, and generation | occurrence | production of the nonuniformity of heating can be suppressed.

A heat shield plate 41 for supporting the space heater 40 is provided around each space heater 40 and between the space heater 40 and the EDLC 13.
As shown in FIG. 6, the heat shield plate 41 is formed in a substantially “U” shape when viewed from the front, and supports the heat shield surface portion 41 a for blocking heat on the upper surface and the lower surface of the space heater 40 on the lower surface. A heater installation surface portion 41b, a connecting portion 41c for connecting one side end of the heat shield surface portion 41a in the longitudinal direction and one side end of the heater installation surface portion 41b on the same side in the longitudinal direction, and a heat shield surface portion 41a The front mounting surface portion 41d extends directly downward from the front end, and the rear mounting surface portion 41e extends directly downward from the rear end of the heat shield surface portion 41a.

The heat shield surface portion 41 a is configured in a rectangular shape, and the length in the longitudinal direction of the heat shield surface portion 41 a is configured to be longer than the length in the longitudinal direction of the space heater 40.
The heater installation surface portion 41b is formed in a rectangular shape, and the length of the heater installation surface portion 41b in the longitudinal direction is substantially the same as the length of the space heater 40 in the longitudinal direction. A heater 42 for insulating and supporting the space heater 40 is provided on the heater installation surface 41b. By supporting the space heater 40 through the insulator 42, the space heater 40 is transferred from the space heater 40 to the heat shield plate 41 by conduction. Heat can be prevented from being transmitted.

  The connecting portion 41 c is configured in a rectangular shape, and is provided so as to be orthogonal to the heat shield surface portion 41 a and the heater installation surface portion 41 b and so that the longitudinal direction is substantially parallel to the short direction of the package 10. ing. The length of the connecting portion 41c in the longitudinal direction is the same as the length of the heater installation surface portion 41b in the longitudinal direction, and is substantially the same as the length of the space heater 40 in the longitudinal direction.

  The front mounting surface portion 41d is obtained by extending the front end of the heat shield surface portion 41a vertically downward, and is formed in a substantially rectangular shape with the short side direction being the vertical direction. A hole for inserting the fixing screw 43 is provided in the left and right and upper and lower centers of the front mounting surface portion 41d, and a nut 44 for screwing with the fixing screw 43 is welded to the rear side of the hole.

The rear mounting surface portion 41e is formed by extending the rear end of the heat shielding surface portion 41a vertically downward, and is formed in a substantially rectangular shape in which the lateral direction is the vertical direction. Pins 45 projecting forward are fixed to the left and right and upper and lower centers of the rear mounting surface portion 41e by welding. However, it is also possible to adopt a configuration in which the pin 45 protrudes rearward from the inner surface of the front mounting frame 11, is inserted into a pin hole opened in the front mounting surface portion 41d, and the rear mounting surface portion 41e is fixed with a bolt.
Further, a space for straddling (mounting) the attachment frame 11 is formed between the front attachment surface portion 41d and the front end side of the connecting portion 41c, and the rear attachment surface portion 41e and the rear end side of the connecting portion 41c.

  The space heater 40 and the heat shield plate 41 that supports the space heater 40 are arranged at equal intervals in the longitudinal direction of the package 10. In the present embodiment, two space heaters 40 and two heat shield plates 41 are provided. The number of space heaters 40 and heat shield plates 41 is not limited to this, and it is possible to arrange three or more.

  Further, as shown in FIGS. 6A and 7, the lengths of the heat shield surface 41a and the heater installation surface 41b of the heat shield plate 41 in the left-right direction are D1, and the heat shield surface 41a of the heat shield 41 and the heater. The distance from the installation surface portion 41b, in other words, the vertical length of the connecting portion 41c is D2. In this case, the length D1 is shorter than the length D2. 5 and 7, the length D1 is shorter than the length D3 between the lower ends of the EDLCs 13 and 13 and the lower end of the mounting frame 11, and the length D2 is shorter than the length D3. It has a long structure.

Next, a method for attaching the space heater 40 and the heat shield plate 41 will be described.
First, as shown in FIGS. 7A and 7B, the space heater 40 is installed on the heat shield plate 41 and inserted between the EDLC 13 and the lower part of the mounting frame 11 from the rear side of the engine generator 1. . At this time, as shown in FIG. 7B, the space heater 40 and the heat shield plate 41 are arranged with the connecting portion 41c of the heat shield plate 41 facing up, the heat shield surface portion 41a on the right side, and the heater installation surface portion 41b on the left side. Insert in the state. Thereby, since the length D3 is longer than the length D1, the space heater 40 and the heat shield plate 41 can be easily inserted into the gap between the EDLC 13 and the lower part of the mounting frame 11.

  After the space heater 40 and the heat shield plate 41 are inserted between the EDLC 13 and the lower part of the mounting frame 11, the space heater 40 and the heat shield plate 41 are rotated 90 degrees counterclockwise as viewed from the rear, and FIG. As shown, the connecting portion 41c of the heat shield plate 41 is on the left, the heat shield surface portion 41a is on the upper side, and the heater installation surface portion 41b is on the lower side.

  Then, as shown in FIG. 8B, the space heater 40 and the heat shield plate 41 are moved downward. At this time, the rear attachment surface portion 41e is moved so as to be arranged behind the rear surface of the rear lower portion of the attachment frame 11. More specifically, the front end of the pin 45 projecting forward from the rear attachment surface portion 41e is moved so as to be located behind the rear surface of the rear lower portion of the attachment frame 11.

  Next, as shown in FIG. 8C, the space heater 40 and the heat shield plate 41 are moved forward. At this time, the pin 45 is inserted from the rear into the insertion hole 11a for inserting the pin 45 provided at the rear lower portion of the mounting frame 11 with the axis of the pin 45 being aligned. Moreover, it moves to the front so that the axial center of the screw hole 11b provided in the front lower part of the attachment frame 11 and the axial center of the hole of the front attachment surface part 41d may correspond.

  After the insertion of the pin 45 into the insertion hole 11a is completed, as shown in FIG. 8 (d), the fixing screw 43 is inserted from the front into the screw hole 11b of the mounting frame 11 and the hole of the front mounting surface portion 41d and fixed. The screw 43 is screwed to a nut 44 provided on the rear surface of the hole. In this manner, the space heater 40 and the heat shield plate 41 are attached.

Next, a method for removing the space heater 40 and the heat shield plate 41 will be described.
First, the fixing screw 43 is pulled out from the screw hole 11b of the attachment frame 11 and the hole of the front attachment surface portion 41d. Then, the space heater 40 and the heat shield plate 41 are moved backward. At this time, the pin 45 is pulled out backward from the insertion hole 11a for inserting the pin 45 provided in the rear lower part of the mounting frame 11.

  Then, the space heater 40 and the heat shield plate 41 are moved upward. Further, after the space heater 40 and the heat shield plate 41 are inserted between the EDLCs 13 and 13 and the lower part of the mounting frame 11, the space heater 40 and the heat shield plate 41 are rotated 90 degrees in the clockwise direction in the rear view, thereby 41 with the connecting portion 41c up, the heat shield surface portion 41a on the right side, and the heater installation surface portion 41b on the left side. Thereby, since the length D3 is longer than the length D1, the space heater 40 and the heat shield plate 41 can be easily pulled out from the gap between the EDLC 13 and the lower portion of the attachment frame 11.

  Further, a temperature sensor for detecting the ambient temperature of the EDLCs 13 and 13 is provided, and the temperature sensor is connected to the electrical component box 51.

  Here, the allowable temperature of the EDLCs 13 and 13 according to the present embodiment is, for example, −5 ° C. to 40 ° C. When the temperature around the EDLCs 13 and 13 detected by the temperature sensor is 40 ° C. or higher, the electrical component box 51 ventilates the power storage chamber 2 by driving the ventilation fans 36 and 36 so as to surround the EDLCs 13 and 13. When forced ventilation is performed and the temperature is −5 ° C. or lower, the EDLCs 13 and 13 are heated by the heat generated by the space heater 40.

  In this way, it is possible to prevent the ambient temperature of the EDLCs 13 and 13 from being equal to or higher than the allowable upper limit temperature or lower than the allowable lower limit temperature, and to ensure the reliability of the EDLCs 13 and 13 as devices.

<Equipment room>
The equipment room 3 of the engine generator 1 will be described with reference to FIG. FIG. 3 illustrates a state where the engine generator 1 is seen through from the front.

The equipment room 3 of the engine generator 1 stores an electrical component box 51 for storing electrical components such as an engine generator control device that controls the engine generator 1, a generator G, an engine E, and fuel. A fuel tank 53, a radiator 54 for cooling engine cooling water, a radiator fan 52 for ventilating the inside of the equipment room 3, an exhaust pipe 58 connected to the engine E, and exhaust silencers 57 and 57 interposed in the exhaust pipe 58 And are arranged.
In addition, on the front side of the engine generator 1, a package door 59 is provided in the package 10 that covers the device room 3.
Further, the package 10 covering the device room 3 of the engine generator 1 is provided with an intake port 55 on the intake side surface 3a and an exhaust port 56 on the exhaust side surface 3b.

  As shown by solid line arrows in FIG. 3, a ventilation structure for ventilating the inside of the equipment room 3 is formed by driving the radiator fan 52. That is, the air sucked from the opening on the bottom surface of the intake hood 4 enters the equipment room 3 from the air inlet 55 of the equipment room 3, cools the generator G, the engine E, etc., cools the radiator 54, The exhaust hood 5 enters the exhaust hood 5 from the exhaust port 56 of the chamber 3, and is exhausted to the outside through the opening on the bottom surface of the exhaust hood 5.

  The exhaust pipe 58 extends vertically upward from the upper part of the engine E, extends horizontally toward the exhaust side surface 3b via an exhaust silencer 57 supported on the upper surface of the equipment chamber 3, and further the exhaust silencer. After passing through the exhaust side surface 3b through 57 and rising in the exhaust hood 5 vertically upward, it bends in the horizontal direction and penetrates the exhaust hood 5 and protrudes to the outside.

<Connection of engine generator 1>
Next, the connection of the engine generator 1 will be described with reference to FIG.
The engine generator 1 is connected to a commercial power source P, an emergency load La, and an instantaneous voltage drop (hereinafter, instantaneous drop) compensation load Lb. The engine generator 1 includes an engine E, a generator G, a power storage device 60 having an uninterruptible function, electromagnetic contactors 75 and 75, and a power failure detector 64. When the power failure detector 64 detects a power failure, the engine generator 1 switches the power supply from the commercial power source P to the power generator G by switching the electromagnetic contactors 75 and 75, and the emergency load La and the instantaneous drop. Electric power is supplied to the compensation load Lb.

  The emergency load La is a load that allows a power failure or a voltage drop for about 10 to 40 seconds. The emergency load La corresponds to a lighting fixture, an air conditioning facility, or the like. The instantaneous drop compensation load Lb is a load that does not allow even an instantaneous voltage drop. The instantaneous drop compensation load Lb corresponds to a personal computer, a bank ATM, or the like.

  The power storage device 60 includes a path 61 from the power source side that is the commercial power supply P or the generator G to the load side that is the instantaneous voltage compensation load Lb, a path 63 that bypasses the path 61, and a path 62 that extends from the EDLC 13 to the path 61. It is equipped with. The path 61 connects the circuit breaker 19, the high-speed semiconductor switch 68, and the circuit breaker 20 in series in this order from the power supply side to the load side. In the path 62, the bidirectional power converter 66, the transformer 24, and the circuit breaker 21 are connected in series in this order from the EDLC 13 toward the load side, and the high-speed semiconductor switch 68 and the circuit breaker 20 in the path 61 are connected. Connected between. The path 63 is provided outside the power storage device 60 and is connected to the load side from the circuit breaker 20 via the circuit breaker 18 from the power supply side to the load side.

  The power storage device 60 includes the EDLCs 13 and 13 and a power storage control device 16 as a control unit that controls power supply and charge / discharge of the EDLCs 13 and 13. The power storage control device 16 includes a bidirectional power converter 66, a high-speed The semiconductor switch 68 and the circuit breakers 18 to 21 are connected. When the power storage control device 16 detects the instantaneous power drop of the path 61 by the high-speed semiconductor switch 68, the bidirectional power converter 66 supplies the power supply direction of the path 62 from the EDLC 13 to the instantaneous drop compensation load Lb. Has a switching function.

The power supply method of the engine generator 1 will be described with reference to FIG. FIG. 10 shows four power supply methods of the engine generator 1 such as commercial power supply, EDLC power supply, generator power supply, and commercial power supply (during maintenance).
Usually, the power feeding method is commercial power feeding. In the commercial power supply, the electromagnetic contactor 75 on the commercial power supply side is closed and the electromagnetic contactor 75 on the engine generator 1 side is opened (the connection between the engine E and the generator G and the emergency load La is disconnected), Electric power is supplied from the commercial power source P to the emergency load La. Further, as the commercial power supply, the power storage control device 16 opens the circuit breakers 18 and 21 and closes the circuit breakers 19 and 20, and supplies power from the commercial power supply P to the voltage sag compensation load Lb via the path 61. . At this time, the power storage device 60 does not perform the charging / power feeding operation, but may turn on the circuit breaker 21 and charge the EDLC 13 from the commercial power supply P via the paths 61 and 62.

  When a power failure occurs or when the voltage is lower than the allowable low voltage, the power supply method is changed from commercial power supply to EDLC power supply. When the power storage control device 16 detects an instantaneous power drop in the path 61 by the high-speed semiconductor switch 68 as EDLC power feeding, the bidirectional power converter 66 changes the power supply direction of the path 62 from the EDLC 13 to the instantaneous compensation load Lb. In order to supply electric power, the circuit breaker 19 is opened and the circuit breakers 20 and 21 are closed.

  Next, when the power failure detector 64 detects a power drop later than the high-speed semiconductor switch 68, the power supply method is changed from EDLC power supply to generator power supply. In generator feeding, the electromagnetic contactor 75 on the commercial power supply side is opened, the electromagnetic contactor 75 on the engine generator 1 side is closed, and the engine E and the generator G and the emergency load La are connected. Power is supplied to the emergency load La. In the generator power supply, the power storage control device 16 closes the circuit breakers 19, 20, and 21, and supplies electric power from the generator G to the instantaneous drop compensation load Lb via the path 61 by driving the engine E. Further, the power storage control device 16 charges the EDLC 13 from the generator G via the paths 61 and 62.

  When maintenance is performed on power storage device 60, the power supply method is commercial power supply (during maintenance). In commercial power supply (maintenance), the electromagnetic contactor 75 on the commercial power supply side is closed and the electromagnetic contactor 75 on the engine generator 1 side is opened, and power is supplied from the commercial power supply P to the emergency load La. The power storage control device 16 closes the circuit breaker 18, opens the circuit breakers 19, 20, and 21, supplies power from the commercial power source to the voltage sag compensation load Lb via the path 63, and supplies power to the power storage device 60. To prevent the flow.

By configuring in this way, even when there is a power failure, the engine generator 1 performs the EDLC power supply before the generator power supply as an uninterruptible function, so that the power failure detector 64 detects the power failure and the engine While E is activated, the power storage device 60 can supply power to the instantaneous drop compensation load Lb. In this way, even when a power failure occurs, power is always supplied to the instantaneous drop compensation load Lb.
Furthermore, the power storage device 60 is also provided with a path (not shown) that bypasses the junction of the high-speed semiconductor switch 68 and the path 61 and the path 62 on the load side of the circuit breaker 20 and connects to the power source side of the circuit breaker 21. It becomes an electric power supply path at the time of failure of the electrical storage device 60 or overvoltage of commercial power.

DESCRIPTION OF SYMBOLS 1 Engine generator 2 Power storage room 3 Equipment room 10 Package 11 Mounting frame (frame)
13 EDLC (electric storage body)
16 Power Storage Control Device 25 Package Door 26 Air Intake Port 28 Package Door 29 Ventilation Port 36 Ventilation Fan 40 Space Heater 41 Heat Insulation Plate 60 Power Storage Device E Engine G Generator

Claims (3)

An engine and a generator are disposed in the equipment room, the power storage body and a power supply and control means for controlling charge / discharge of the power storage body, and a power storage device having an uninterruptible function is disposed in the power storage room, The storage rooms are configured in separate casings with the same installation area, the storage room is installed on the upper surface of the equipment room, the equipment room and the storage room are covered with a package, and the storage body is placed over the entire lower surface of the storage room. In the engine generator disposed and the control means disposed above the storage chamber,
A plurality of space heaters are provided at equal intervals in the longitudinal direction of the package in the gap with the equipment chamber below the power storage body, and a heat shield is provided between the space heater and the power storage body. A featured engine generator.   2. The heat shield plate according to claim 1, wherein the heat shield plate has an integral shape facing the heater installation surface, and the width dimension of the heat shield plate and the heater installation surface is shorter than the distance between the heat shield plate and the heater installation surface. The engine generator described. The power storage body is supported by a frame, mounting surfaces are formed at both ends of the heat shield plate in the short side of the package, one mounting surface is fixed inside the frame, and the other mounting surface is fixed outside the frame. The engine generator according to claim 2, wherein

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