JP3274823B2 - Inverter device for automobile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inverter device for a vehicle, which obtains an AC output of a commercial frequency from a cigarette lighter socket or the like and which can use household electric appliances in a passenger compartment. Regarding the configuration to facilitate.

[0002]

2. Description of the Related Art Recently, with the development of outdoor leisure, electric appliances that can be used with the battery voltage of an automobile are being developed. However, it is desired to use electric appliances that are widespread for home use in a vehicle compartment as they are. There are many hopes.

[0003] In order to meet such demands, DC power is inserted into a DC socket such as a cigarette lighter socket to convert a direct current to a 100 V power supply of a commercial frequency. An inverter device for a vehicle as an AC adapter for connecting a product is described in, for example, Japanese Utility Model Publication No. 63-32557.

The conventional vehicle inverter device described in the above publication has a plug inserted into a cigarette lighter socket protruding from a rear surface of a head housing an inverter circuit portion, and an AC 100 V on the front surface of the head. And when the plug is inserted into the DC socket on the vehicle side, a supporting portion that comes into contact with the panel surface on which the DC socket is provided is projected from the rear surface of the head on the outer periphery of the plug. It was done.

[0005]

By the way, as an inverter which can operate the above-mentioned general household electric appliance,
The number of turns of the transformer is considerably increased, the weight exceeds several kilograms, and the size of the head, that is, the housing, is several tens of times the size of the plug or socket. Therefore,
When the automotive inverter device disclosed in the above publication is actually inserted into a DC socket, even if the support portion is in contact with the panel surface, the inserted state of the socket and the plug is loosened due to the vibration of the automobile or the like, and frequent contact failures occur. In the case where the DC socket is a cigarette lighter socket provided on the center console, the inverter projects at a position where it interferes with the shift lever of the transmission, making it difficult to perform the shift operation.

Therefore, generally, as shown in Japanese Utility Model Laid-Open Publication No. 58-3783, an inverter device for a vehicle extends a cord (harness) from an inverter body having an output-side socket (receptacle) and a switch, and a leading end of the cord. In this case, a normal electric appliance having a plug inserted into a cigarette lighter socket is used.

However, in such a usual inverter device for an automobile, the inverter body is installed in a place where the automobile is installed in a dead space or the like, for example, under a seat. For this reason, when using the inverter, pull out the inverter body to an easy-to-handle position, insert the plug into the DC socket, and insert the other party's electrical outlet into the output side socket, and set the switch on the inverter body. It becomes complicated handling to throw in. In addition, even when the plug is inserted into the vehicle-side DC socket, the inverter main body must be pulled out from the installation location in order to insert the outlet of the counterpart electrical product into the output-side socket.

Further, when the inverter main body is stowed under a seat or the like, it is necessary to provide a slider for sliding the inverter main body on the floor in order to facilitate the drawing-out operation, which increases the cost.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an inverter device for a vehicle in which an inverter main body can be installed at an installation place and can be easily handled even when used.

[0010]

[Means for Solving the Problems]

(Constitution) An automotive inverter device according to the present invention that solves the above-mentioned problem is an automotive inverter device that is installed in an automobile and converts a DC voltage based on a battery or a power generation mechanism of the automobile into an AC voltage having a commercial frequency. An inverter main body including an inverter circuit unit for generating an AC voltage from the DC voltage and a housing accommodating the inverter circuit unit; and a DC socket provided on a vehicle body for removing the DC voltage to a vehicle compartment. An outlet member having an input-side plug part to be inserted and an output-side socket part for taking out the AC voltage, a conductor for guiding the DC voltage from the input-side plug part to the inverter circuit part, and the inverter circuit The outlet member and the inverter having a conducting wire for guiding the AC voltage from the section to the output side socket section. A harness connected to a power circuit unit, the outlet member has a harness receiving portion through which a base end of the harness penetrates, and the output-side socket portion and the harness receiving portion are connected to the input terminal. Located on a side substantially opposite to the insertion / removal direction of the input side plug portion with respect to the side plug portion,
In addition, they are characterized by being arranged so as to overlap with each other when viewed from a direction perpendicular to the insertion / extraction direction and to be spaced apart from each other in a direction perpendicular to the insertion / extraction direction. (Operation) In the automotive inverter device of the present invention, when the input side plug portion of the outlet member is inserted into the DC socket on the vehicle side, the input DC voltage from the DC socket is supplied to the inverter circuit portion via the harness. The inverter circuit converts the input DC voltage into an AC voltage, and derives an output AC voltage to an output-side socket of the outlet member via a harness. In this handling operation, the inverter body does not need to be pulled out from the installation location of the automobile, and can be installed at the installation location. Further, as shown in FIG. 2, in the grip portion for inserting and removing the outlet member, the harness receiving portion through which the harness enters and exits the outlet member, and the output-side socket portion, as shown in FIG. Since the outlet members are arranged so as to overlap with each other when viewed from a direction orthogonal to the direction, the length of the outlet members protruding into the vehicle compartment can be reduced despite the outlet members having the harness receiving portion and the output side socket portion. In a preferred aspect of the present invention, the outlet member has a width that gradually increases in a direction perpendicular to the insertion / extraction direction from a base end of the input-side plug portion toward a removal direction of the input-side plug portion. The output-side socket portion and the harness receiving portion are disposed on the outlet member at a position opposite to the input-side plug portion with the width-increased portion interposed therebetween .

Even in the case where the DC socket is a cigarette lighter socket provided on the center console, the outlet member is a compact body which has an input side plug portion and an output side socket and can be easily received. There is almost no interference problem.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An automobile inverter device according to the present invention can be installed in a fixed state in which an inverter body is fixed to a lower side of a seat with an adhesive tape or the like. The installation location is
Any place where the harness can be easily pulled out from the driver's seat, front passenger seat, rear seat, etc. in the dead space inside the vehicle compartment is acceptable. And so on.

[0013] each lead constituting the harness is not preferably be bundled to the mantle tube. As a result, entanglement when the harness is pulled out can be avoided.

In the case where the input side plug portion of the automobile inverter device is inserted into a cigarette lighter socket provided on the center console, the insertion opening of the output side socket is formed obliquely upward with respect to the longitudinal direction of the outlet member. it is not preferable. As a result, the power plug of the counterpart electrical product is inserted downward into the output-side socket, so that the plugging operation is facilitated, and when the power plug is unplugged or the outlet member itself can be avoided.

The proximal end portion of the harness extending from the outlet member is not preferable to be positioned on the lower side of the upward output socket. Thereby, the overall length of the outlet member, in other words, the length of the portion where the outlet member protrudes from the DC socket can be shortened, so that interference with the shift lever side is further avoided.

In the inverter device for a vehicle according to the present invention, a switch of the inverter circuit portion is provided on the outlet member, so that energization can be cut off. In addition, an LED or a cigarette lighter socket indicating a usable state can be provided.

In the inverter device for an automobile according to the present invention, when the insertion port of the output side socket is formed obliquely upward with respect to the longitudinal direction of the outlet member, a drain hole communicating downward with the insertion port is formed in the outlet member. can do.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) As shown in FIG. 1, a vehicle inverter device according to a first embodiment has a box-shaped inverter body 1 having no output AC voltage socket and the like, and a vehicle-side DC socket. An outlet member 4 in which an input-side plug portion 2 inserted into the socket and an output-side socket portion 3 into which an outlet of a counterpart electric product is inserted are integrated.
And a harness 5 that electrically connects the outlet member 4 and the inverter body 1.

The inverter body 1 has an inverter circuit section for generating an output AC voltage from an input DC voltage housed in a housing, and has an approximate size of 12 cm in width and 20 cm in length.
cm and a height of 5 cm. The cooling window 1a and the AC socket 1b can be provided, and cooling fins can be formed on the housing itself (not shown).

As shown in FIG. 3, the outlet member 4 includes a case 6 to which the semi-cylindrical housings 6a and 6b are connected.
And a resin assembly 7 fitted to the input side plug portion 2 serving as a rear end portion of the case 6, a DC terminal rod 8 attached to the resin assembly 7, and the resin assembly 7 and the case 6. As shown in FIG. 2, the contact socket is mainly composed of a contact terminal plate 9 attached therebetween and an AC socket 11 having an insertion port member 10 fitted to the front end opening surface of the case 6. An AC socket 11 is attached to the insertion port member 10 on an insertion port surface 10a having a surface obliquely upward.

As shown in FIG. 2, the harness 5 is formed by covering a pair of DC conductors 5a and a pair of AC conductors 5b with an insulating tube 5c made of rubber or the like, and one of the DC conductors 5a is shown in FIG. As described above, the other end of the DC conductor 5a is connected to the contact terminal plate 9. One of the AC conductors 5b is connected to one terminal of the AC socket 11, and the other of the AC conductor 5b is connected to another terminal of the AC socket 11. The outlet member 4 is located at a lower portion thereof.
The harness 5 has a harness receiving portion 5d, and the harness 5 has a harness receiving portion 5d.
It exits through a hole provided below the inlet 5 d and is connected to the inverter body 1.

The resin assembly 7 is a member having a cylindrical portion extending in the axial direction of the input side plug portion 2, and houses a spring 12 and the DC terminal rod 8 in series in the cylindrical portion. The DC terminal rod 8 is urged by the spring 12 toward the rear end of the shaft. The DC terminal rod 8
Is provided with a tube fuse 13 on the way.

The contact terminal plate 9 has both ends in the axial direction engaged with an opening 6 c formed in the input side plug portion 2. The contact terminal plate 9 is urged in the outer radial direction by pressing a spring 14 in a direction perpendicular to the axis, one end of which is supported by the cylindrical portion.

To further explain, as shown in FIG.
The tret member 4 is a harness through which the base end of the harness 5 penetrates.
It has a nest receiving part 5d. Output side socket part 3 and
The harness receiving unit 5d is configured to input the input to the input side plug unit 2.
The plug is located on the opposite side of the plug
When viewed from the direction perpendicular to the direction,
Are arranged at a predetermined distance from each other in the orthogonal direction
ing. Also, the outlet member 4 is shown in FIG.
As shown, the proximal end of the input side plug section 2 or the input side plug
Width in the direction perpendicular to the insertion / extraction direction, toward the extraction direction of the part 2
Has a width gradually increasing portion 60 gradually increasing, and an output side socket.
The section 3 and the harness receiving section 5d sandwich the width increasing section 60 therebetween.
Outlet member located on the side opposite to input side plug section 2
4.

(Operation) The automotive inverter device of the present invention having the above-described structure is:
As shown in FIG. 4, it can be installed in a fixed space, for example, in a dead space below a seat or a predetermined installation location. The harness 5 having the outlet member 4 at the tip can be easily picked up, for example, the console box 1.
5 side. In this case, although not shown, by adopting a configuration in which the harness 5 can be stored in the inverter main body 1 by winding it up or down, the device can be easily transported.

When the present inverter device is used, the outlet member 4 is gripped and the cigarette lighter socket 17 provided on the center console 16 is held.
Insert the input side plug unit 2 into a DC socket such as Thus, the outlet member 4 is connected to the cigar lighter socket 17.
Is inserted, the DC terminal rod 8 comes into press contact with the cigarette lighter socket 17, and an input DC voltage having one of the DC conductors 5a, 5a as a reference potential is input to the inverter circuit section, and converted by the inverter circuit section. Output AC voltage is conductor 5
b, the AC socket 1 of the output side socket part 3 via 5b
1 is derived. Therefore, by inserting the outlet of the counterpart electrical product into the AC socket 11, the counterpart electrical product can be operated in the automobile.

In the inverter device for a vehicle according to the present invention, the AC voltage is applied to the position of the DC socket (cigar lighter socket) 17 without pulling out the inverter main body 1 from the installation position in a state where the inverter main body 1 is installed at the installation location. Can be taken out.

The cigarette lighter socket provided on the center console is usually located at a relatively lower position of the center console, and the tilted shift lever 1
8 approaches. In the automotive inverter device of the present invention,
Outlet member 4 that is inserted into the vehicle side DC socket
Does not include an inverter circuit portion, the outlet member 4 can be shortened in its longitudinal direction, that is, in the direction of insertion of the cigarette lighter socket. Therefore, even if the outlet member 4 is inserted, as shown in FIG. 1
8 hardly causes a problem.

In particular, as is apparent from FIG.
Is formed obliquely upward with respect to the longitudinal direction of the outlet member 4, here, the axial direction of the input-side plug portion 2. When the outlet of the electric product is inserted, the knob of the shift lever 18 is also escaped.

The inverter device for a vehicle according to the present embodiment is designed so that the size of the output side socket portion 3 becomes more compact. That is, usually, the electrical plug and the socket, each terminal member is a straight member, and when these are stored in a cylindrical body, they are arranged facing each other as shown in FIG. Resulting in.
Further, the base end portion 25d of the harness 25 is disposed at an intermediate position where the terminal members abut.

However, in the outlet member 4 of the first embodiment, the AC socket 11 is attached to the insertion opening face 10a formed obliquely upward in FIG.
The input side plug part 2 and the output side socket part 3 are connected so that the terminal direction of the AC socket 11 crosses the axial direction of the input side plug part 2 and the dimension of the output side socket part 3 extending in the same axial direction becomes short. You can get closer. A harness for accommodating the base end of the harness 5 below the AC socket 11 is provided.
It is provided a scan receiving portion 5d. As described above, the outlet member 4 in the automotive inverter device of the first embodiment.
Accommodates the AC socket 11 and the base end of the harness 5
The harness receiving portion 5d can be configured to have a dimension in a direction intersecting with the axial direction of the input side plug portion 2, thereby reducing the size in the axial direction as a whole. Therefore, the automotive inverter device of the first embodiment has a structure in which interference with the shift lever 18 is further avoided. [0332] Further, by making the insertion opening surface 10a oblique to the axial direction of the input side plug portion 3, the outlet direction of the outlet differs from the axial direction of the outlet member 4 when the outlet of the mating electrical product is pulled out. At the same time, the outlet member 4 is not removed.

In the above embodiment, the lower portion of the output side plug portion 3, here, the base end portion of the harness 5,
It is preferable to form a drain hole in the harness receiving portion 5d that accommodates the water. As a result, even if water such as juice enters the outlet member 4, it flows out. Further, a detachable cover for covering the output side socket section 3 may be provided.

A switch may be provided on the outer surface of the outlet member 4 so that the output DC voltage does not appear in the AC socket 11 when the input plug 2 is inserted into the DC socket.

Further, although the cigarette lighter socket is possible to also use those not provided in the console, so that the harness 5 by the installation site can interfere, the harness receiving portion 5d is on the outer periphery of the outlet member 4 Interference can be prevented by adopting a configuration that can move along.

[0036]

[0037]

[0038]

[0039]

As described above, according to the present invention, the socket for the output AC voltage is provided in the DC socket on the vehicle side, and the inverter body can be installed without being pulled out from the installation location of the vehicle. It can be placed in place and handling is extremely easy.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an automotive inverter device according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway sectional view showing an outlet member of the automobile inverter device.

FIG. 3 is a partially cutaway sectional view showing an input side plug portion of the outlet member.

FIG. 4 is an explanatory diagram illustrating a usage state of the automotive inverter device of the present invention.

FIG. 5 is a schematic diagram showing an automotive inverter device according to the present invention.
It is a perspective view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Inverter main body, 2 ... Input side plug part, 3 ... Output side socket part, 4 ... Outlet member, 5 ... Harness.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhiro Sasaki 2-1-1 Toyota-cho, Kariya-shi, Aichi, Japan Inside the Toyota Industries Corporation (72) Inventor Jin Shimitsu 2-1-1, Toyota-cho, Kariya-shi, Aichi, Japan (72) Inventor Takatoshi Ito 2-1-1 Toyota-cho, Kariya-shi, Aichi Pref. Toyoda Automatic Loom Works (56) References JP-A-59-201598 (JP, A) JP-A-60 JP-A-9-74666 (JP, A) JP-A-57-168994 (JP, U)

Claims (4)

(57) [Claims] An inverter circuit installed in a vehicle and converting a DC voltage based on a battery or a power generation mechanism of the vehicle into an AC voltage having a commercial frequency, wherein the inverter circuit generates an AC voltage from the DC voltage. And an inverter main body comprising a housing housing the inverter circuit unit; and an input side detachably inserted into a DC socket provided on a vehicle body side for extracting the DC voltage into a vehicle compartment. An outlet member having a plug portion and an output-side socket portion for taking out the AC voltage; a lead for guiding the DC voltage from the input-side plug portion to the inverter circuit portion; and an AC voltage from the inverter circuit portion. It has a wire leading to the output-side socket part
A harness formed by connecting the outlet member and the inverter circuit portion, wherein the outlet member has a base end portion of the harness penetrated therethrough.
The output-side socket portion and the harness receiving portion,
Insertion / extraction direction of the input side plug part with respect to the input side plug part
Located on the substantially opposite side and perpendicular to the insertion / removal direction.
Overlap with each other when viewed from the direction
Are arranged at a predetermined distance from each other in the
And an inverter device for a vehicle . The outlet member is connected to the input side plug.
From the base end of the lug to the direction in which the input plug is removed
The width in the direction perpendicular to the insertion / extraction direction gradually increases
It has a width increasing part, The output side socket section and the harness receiving section are
It is located on the opposite side of the input side plug part with the width
Characterized in that it is disposed on the outlet member.
The automotive inverter device according to claim 1. 3. The insertion port surface of the output side socket portion,
The vehicle inverter device according to claim 2 , wherein the inverter member is formed obliquely upward with respect to a longitudinal direction of the outlet member. 4. The automotive inverter device according to claim 3, wherein a base end of the harness extending from the outlet member is located below the upwardly directed output-side socket.