JPH0741853U - Discharge lamp lighting device connector structure - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent electric shock during replacement of the discharge lamp. A protrusion 2 is formed on a casing 2 that houses a lighting voltage generating circuit, and a fitting-side connector 20 of the lighting voltage connector is attached to a receiving-side connector 19 in a recess 15 formed in the protrusion. The fitting-side connector 7 of the low-voltage part connector mounted on the receiving-side connector 5 located immediately above the protruding portion closes the opening of the recess.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector structure for a novel discharge lamp lighting device. More specifically, it aims to provide a new connector structure for a discharge lamp lighting device that prevents an electric shock accident during replacement of the discharge lamp.

[0002]

[Prior art]

 A high-pressure discharge lamp such as a metal halide lamp has been attracting attention as a light source lamp of a vehicle headlight. For example, there is a lighting circuit disclosed in Japanese Patent Application No. 5-235489 filed by the applicant.

Such a discharge lamp requires a high voltage of more than 10 kV (kilovolts) for lighting, and therefore the lighting device a has a structure as shown in FIG.

Reference numeral b is a battery, reference numeral c is a ballast having a booster circuit as a center and including a control circuit, a fail-safe circuit, etc., and reference numeral d is a starter including a starting circuit. Then, the battery voltage of about 12 V (volt) is boosted to about several hundreds of volts by the ballast c, and further boosted to several ten kV by the starter d and supplied to the discharge lamp e.

The respective parts b, c, d, e are connected by connectors f, g, h, respectively.

[0006]

[Problems to be solved by the device]

 By the way, in the above-described discharge lamp lighting device a, for example, when the discharge lamp e is replaced, if the connector h is removed without opening the connector f or g, a voltage of 10 kV is applied. Will be exposed, and if an electric shock accident occurs, it will cause a serious situation.

[0007]

[Means for Solving the Problems]

 Therefore, in order to solve the above problems, the connector structure of the discharge lamp lighting device of the present invention is a connector structure of a discharge lamp lighting device that boosts the battery voltage and supplies a high lighting voltage to the discharge lamp. Adjacent to the lighting voltage connector that connects between the lamp and the lighting voltage supply circuit, a low-voltage part connector that connects the part of the voltage lower than the lighting voltage is provided, and the lighting voltage connector is opened while the low-voltage part connector is closed. It is provided with a means for preventing the opening.

[0008]

[Action]

 Therefore, in the connector structure of the discharge lamp lighting device of the present invention, the lighting voltage connector cannot be opened unless the connector for the low voltage portion is opened, and the portion under high voltage is exposed. The situation can be avoided and the occurrence of a serious electric shock accident can be effectively prevented.

[0009]

【Example】

 The details of the connector structure of the discharge lamp lighting device of the present invention will be described below with reference to the illustrated embodiments.

1 and 2 show a first embodiment 1 of the connector structure of the discharge lamp lighting device according to the present invention. In addition, in all of the embodiments shown in this specification including this embodiment, the present invention is applied to the connector structure of the lighting device of the metal halide lamp used as the light source of the vehicle headlight.

Reference numeral 2 denotes a casing, and a ballast and a starter (not shown) are housed in the casing 2.

Reference numeral 3 is a low-voltage section connector for connecting a battery and a ballast (not shown), and reference numeral 4 is a lighting voltage connector for connecting a metal halide lamp and a starter (not shown).

The low-voltage connector 3 comprises a receiving connector 5 formed on the casing 2 and a fitting connector 7 connected to the tip of a harness 6 for connection between a battery (not shown). The receiving-side connector 5 is formed by connecting pins 9, 9 protruding in a recess 8 formed in the casing 2. The fitting-side connector 7 has fitting holes 12 and 12 formed in the tip end surface of a rectangular protrusion 11 protruding from a large box-shaped case 10, and is connected to the harness 6 in the fitting holes 12 and 12. The receiving brackets 13, 13 are arranged.

On the side surface of the casing 2 where the recess 8 is formed, a protrusion 14 is formed adjacent to the recess 8, and the protrusion 14 is located at a position corresponding to the recess 8 on the recess 8 side. A rectangular recess 15 is formed. Reference numeral 16 denotes a groove formed on the surface of the protrusion 14 on which the recess 15 is formed, and connects the recess 15 and the tip surface of the protrusion 14 to each other.

Fitting holes 17, 17 are formed in the inner surface of the recess 15 of the projecting portion 14, and receiving fittings 18, 18 connected to a starter (not shown) are arranged in the fitting holes 17, 17. And the receiving side connector 19 of the lighting voltage connector 4 is formed here.

Reference numeral 20 denotes a fitting-side connector of the lighting voltage connector 4, in which connection pins 22 and 22 are projected from one surface of a box-shaped case 21 having a size that fits tightly in the recess 15. A harness 23 for connecting with a metal halide lamp is led out from a surface adjacent to a surface on which the connecting pins 22 and 22 are provided in a protruding manner. The harness 23 is connected to the connection pins 22 and 22.

In this connector structure 1, the fitting-side connector 20 of the lighting voltage connector 4 is fitted into the recess 15 while the connecting pins 22 and 22 thereof are fitted into the fitting holes 17 and 17 of the fitting-side connector 19. To do. In this way, the receiving-side connector 19 and the fitting-side connector 20 are coupled in the lighting voltage connector 4, and the starter and the metal halide lamp are connected. Then, the harness 23 is passed through the groove 16 formed in the protruding portion 14 of the casing 2.

Then, the fitting connector 7 of the low-voltage connector 3 is fitted into the recess 8 of the receiving connector 5 with the protrusion 11 of the case 10. As a result, the connection pins 9, 9 of the receiving side connector 5 are fitted into the fitting holes 12, 12 of the fitting side connector 7 and are received by the fittings 13, 13 therein. As a result, the receiving-side connector 5 and the fitting-side connector 7 are coupled to each other in the low-voltage section connector 3, and the ballast in the casing 2 and the external battery are connected.

Then, in a state where the receiving side connector 5 of the low voltage part connector 3 and the fitting side connector 7 are coupled, the case 10 of the fitting side connector 7 is fitted with the lighting voltage connector 4 of the protruding part 14 of the casing 2. The side connector 20 is positioned so as to close the opening of the recess 15 in which the side connector 20 is housed.

Therefore, unless the fitting-side connector 7 is removed from the receiving-side connector 5 of the low-voltage connector 3, the opening of the recess 15 is closed and the fitting-side connector 20 of the lighting voltage connector 4 is received. I can't remove it from 19. Therefore, when the lighting voltage connector 4 is opened, the power supply is cut off, and there is no risk of electric shock.

3 to 5 show a second embodiment 1A of the connector structure of the discharge lamp lighting device of the present invention.

Reference numeral 24 denotes a casing, and a ballast 25 and a starter 26 are arranged in the casing 24, and the ballast 25 and the starter 26 are connected in the casing 24. The ballast 25 and a battery (not shown) are connected by a low voltage connector 27, and the starter 26 and a metal halide lamp (not shown) are connected by a lighting voltage connector 28.

Reference numeral 29 is a rectangular concave portion formed on one side surface of the casing 24, and the connection pins 30, 30 connected to the ballast 25 are projected into the concave portion 29, and the receiving portion of the low-voltage portion connector 27 is received there. The side connector 31 is formed.

Reference numeral 32 is a fitting-side connector of the low-voltage section connector 27. Reference numeral 33 is a case of the fitting side connector 27, and a projection 34 is projected from one surface thereof, and the projection 34 is formed in a rectangular parallelepiped having a size that fits snugly in the recess 29. Fitting holes 35, 35 are formed at the tip end surface of the protrusion 34, and receiving fittings 36, 36 are arranged in the fitting holes 35, 35. Reference numeral 37 is a harness that connects a battery (not shown) and the above-mentioned money receivers 36, 36, and is led out from a surface of the case 33 opposite to the surface on which the projection 34 is projected.

Reference numeral 38 denotes a rectangular concave portion formed immediately below the position where the concave portion 29 of the casing 24 is formed. A groove 39 is formed on the upper surface of the concave portion 38, and further, a groove 39 is formed. An engagement recess 40 is formed on the upper surface.

Then, receiving members 41, 41 having a substantially cylindrical shape are fixed to a wall defining the depth of the recess 38, and a receiving side connector 42 of the lighting voltage connector 28 is formed therein.

Reference numeral 43 is a fitting side connector of the lighting voltage connector 28, and 44 is a case thereof.

The case 44 is made of a synthetic resin having elasticity, and most of the case 44 has a rectangular box shape having a size capable of being fitted into the recess 38, and connecting pins 45, 45 project from the front surface thereof. Has been done. Reference numeral 46 denotes a harness that connects the connection pins 46, 46 and a metal halide lamp (not shown), and is led out from the rear surface of the case 44.

Reference numeral 47 is a locking piece integrally provided on the upper surface of the case 44, and has an L shape when viewed from the side. An engaging claw 49 is projected on the upper surface of the horizontally extending horizontal piece 48 of the engaging piece 47 at a position near the front end. The front surface of the engaging claw 49 is formed as an inclined surface that rises rearward.

Then, in the lighting voltage connector 28, the fitting side connector 43 is inserted into the recess 38 from the front end while aligning the locking piece 47 with the groove 39 of the recess 38. Then, the connecting pins 45, 45 are inserted into the receiving fittings 41, 41, and the front surface of the engaging claw 49 of the locking piece 47 is pressed by the upper edge of the opening end of the groove 39 so that the horizontal piece 48 is at the rear end. Flexes so as to be displaced downward, whereby the case 44 is inserted into the recess 38, and finally the connecting pins 45, 45 are received in the receiving fittings 41, 41, and the engaging claws of the locking piece 47 are received. 49 engages with the engagement recess 40 of the groove 39. As a result, the fitting-side connector 43 is coupled to the receiving-side connector 42 in a state in which the fitting-side connector 43 cannot be removed from the receiving-side connector 42 unless the engaging claw 49 and the engaging recess 40 are disengaged. It Then, the starter 26 and the metal halide lamp (not shown) are connected by this.

Then, in the low-voltage connector 27, the projection 34 of the case 33 of the fitting-side connector 32 is fitted into the recess 29 of the receiving-side connector 31. Then, the connection pins 30, 30 in the recess 29 of the receiving-side connector 31 are fitted in the fitting holes 35, 35 in the fitting-side connector 32 and received in the fittings 36, 36 there. As a result, the fitting-side connector 32 and the receiving-side connector 31 are connected, and the ballast 25 and the battery (not shown) are connected.

Then, in the lighting voltage connector 28, in order to remove the fitting-side connector 43 from the receiving-side connector 42, the rear end of the horizontal piece 48 of the locking piece 47 is pressed downward to bend the engaging-side connector 43. After the engagement between the engagement recess 49 and the engagement recess 40 is released, the case 44 is pulled out from the recess 38. However, when the fitting-side connector 32 of the low-voltage part connector 27 is coupled to the receiving-side connector 31, the case 33 is located immediately above the locking piece 47 of the fitting-side connector 43 of the lighting voltage connector 28. However, the horizontal piece 48 of the locking piece 47 cannot be bent. Therefore, unless the fitting-side connector 32 of the low-voltage connector 27 is removed from the receiving-side connector 31, the fitting-side connector of the lighting voltage connector 28 is inserted. 43 cannot be detached from the receiving side connector 42, so that an electric shock accident can be effectively prevented.

6 to 8 show a third embodiment 1B of the connector structure of the discharge lamp lighting device of the present invention.

Reference numeral 50 denotes a casing in which a ballast and a starter (not shown) are housed, and two concave portions 52, 53 are formed on one surface of the casing with a partition wall 51 interposed therebetween.

The one recess 52 constitutes a part of the receiving connector 55 of the low-voltage connector 54, and connection pins 56, 56 are provided on the inner surface of the recess 52 so as to project.

Reference numeral 57 is a case of the fitting side connector 58 of the low voltage part connector 54, and fitting holes 59 and 59 are formed in the front end surface thereof, and a receiving tool (not shown) is arranged in the fitting holes 59 and 59. Has been done. Reference numeral 60 denotes a harness which is led out from the rear surface of the case 57, and connects between a fitting (not shown) in the fitting holes 59, 59 and a battery (not shown).

The other recessed portion 53 constitutes a part of the receiving side connector 62 of the lighting voltage connector 61, and has a substantially cylindrically shaped receiving metal fitting 63, 63 on the wall portion which defines the inner surface thereof. Are fixed, and the receiving side connector 62 of the lighting voltage connector 61 is formed here.

Reference numeral 64 denotes a case of the fitting side connector 65 of the lighting voltage connector 61, on the front surface of which connection pins 66, 66 project. Reference numeral 67 is a harness led out from the rear surface of the case 64, and the harness 67 connects the connection pins 66, 66 to a metal halide lamp (not shown). Further, an engagement recess 68 is formed on the upper surface of the case 64.

A notch 69 is formed in the partition wall 51 of the casing 50, and the two recesses 52 and 53 communicate with each other by the notch 69.

Reference numeral 70 denotes a hook that is substantially L-shaped when viewed from the side, and its base end is rotatably supported by the rear end of the notch 69. An unillustrated elastic means is associated with the hook 70, and the hook-side connector 58 of the low-voltage connector 54 is not inserted into the recess 52, as shown in FIG. The engaging portion 71 at the front end portion is projected to the recess 52 side of the low voltage portion connector 54.

Then, first, the fitting-side connector 65 of the lighting voltage connector 61 is inserted into the recess 53 of the receiving-side connector 62, and the connection pins 66 and 66 are received into the receiving fittings 63 and 63. A starter (not shown) in 50 is connected to a metal halide lamp (not shown).

Then, the fitting-side connector 58 of the low-voltage connector 54 is inserted into the recess 52 of the receiving-side connector 55, and the connection pins 56, 56 of the receiving-side connector 55 are fitted-in holes 59, 59 of the fitting-side connector 58. It is fitted into the and is received by a receiving metal fitting (not shown) located there. As a result, the ballast (not shown) in the casing 50 is connected to the battery (not shown). When the fitting-side connector 58 is coupled to the receiving-side connector 55 of the low-voltage part connector 54 in this manner, the front end of the hook 70 is pressed by the case 57 entering the recess 52, which is related to this. The engaging portion 71 is rotated so as to move to the concave portion 53 side against the elastic force of the elastic means, and eventually, as shown in FIG. The engagement side connector 65 of the lighting voltage connector 61 projecting to and located in the recess 53 is locked with the engagement side recess 65 of the fitting side connector 65.

Then, unless the fitting-side connector 58 of the low-voltage part connector 54 is removed from the receiving-side connector 55, the fitting-side connector 65 is not unlocked, and therefore the power source is not shut off. The voltage connector 61 is not opened, and an electric shock accident can be effectively prevented.

FIG. 9 shows a fourth embodiment 1C of the connector structure of the discharge lamp lighting device of the present invention.

Reference numeral 72 denotes a casing, and a ballast and a starter (not shown) are arranged in the casing 72.

Reference numeral 73 is a receiving side connector of the lighting voltage connector 74, and is constituted by receiving members 75, 75 having a substantially cylindrical shape fixed to one wall surface of the casing 72. The brackets 75, 75 are connected to a starter (not shown).

Reference numeral 76 denotes a case of the fitting-side connector 77 of the lighting voltage connector 74, on the front surface of which connecting pins 78, 78 are provided in a protruding manner. Further, a harness 79 for connecting the connection pins 78, 78 and a metal halide lamp (not shown) is led out from the rear surface of the case 76.

Reference numeral 80 denotes a locking piece that projects from one side surface of the case 76, and a locking hole 81 is formed in the locking piece 80.

Reference numeral 82 denotes a receiving side connector of the low voltage section connector 83, which is constituted by connecting pins 84, 84 protruding from the casing 72 adjacent to the receiving side connector 73 of the lighting voltage connector 74. There is. The connection pins 84, 84 are connected to a ballast (not shown).

Reference numeral 85 denotes a case of the fitting-side connector 86 of the low-voltage connector 83, which is made of elastic synthetic resin and has fitting holes 87, 87 formed in its front surface. Receiving metal fittings 88, 88 are arranged at. Further, from the rear surface of the case 85, a harness 89 for connecting between a battery (not shown) and the receiving fittings 88, 88 is drawn out.

Reference numeral 90 denotes a hook piece having a substantially L-shaped side surface integrally projecting from the upper surface of the case 85, and a horizontally extending horizontal piece 91 has a claw portion 92 protruding downward at the front end thereof. Is being formed. The front surface of the claw portion 92 is inclined rearward and downward.

Then, the connection pins 78, 78 of the fitting side connector 77 of the lighting voltage connector 74 are inserted into the receiving fittings 75, 75 of the receiving side connector 73. As a result, the fitting-side connector 77 and the receiving-side connector 73 are connected, and the metal halide lamp (not shown) is connected to the starter in the casing 72.

Then, the connection pins 84, 84 of the receiving side connector 82 are fitted into the fitting holes 87, 87 of the fitting side connector 86 of the low voltage part connector 83. As a result, the connecting pins 84, 84 are received by the receiving fittings 88, 88 in the fitting holes 87, 87, the fitting-side connector 86 of the low-voltage connector 83 and the receiving-side connector 82 are coupled, and the battery and casing not shown The ballast in 72 is connected. Then, at this time, the claw portion 92 of the hook piece 90 of the fitting-side connector 86 of the low-voltage connector 83 is engaged with the locking hole 81 of the fitting-side connector 77 of the lighting voltage connector 74, whereby the lighting voltage connector 74. Unless the receiving side connector 73 and the fitting side connector 77 are locked and the fitting side connector 86 of the low voltage part connector 83 is not removed from the receiving side connector 82, the fitting side connector 77 of the lighting voltage connector 74 is received. It cannot be removed from the side connector 73. Therefore, the lighting voltage connector 74 is not opened while the power source is connected, and the electric shock accident can be effectively prevented.

FIG. 10 shows a fifth embodiment 1D of the connector structure of the discharge lamp lighting device of the present invention.

Reference numeral 93 denotes a casing, and ballast and starter (not shown) are housed in the casing 93.

Reference numerals 94, 94 denote connecting pins protruding from one wall surface of the casing 93, and are connected to the ballast in the casing 93. The connection pins 94, 94 form a receiving-side connector 96 of the low-voltage section connector 95.

Reference numeral 97 is a case of the fitting-side connector 98 in the low-voltage connector 95, and fitting holes 99 and 99 are formed in the front surface of the fitting connector 100. The receiving fittings 100 and 100 are housed in the fitting holes 99 and 99. Has been done.

Reference numeral 101 denotes a protruding portion that protrudes downward from the lower surface of the rear end portion of the case 97, and the harness 102 is led out from the lower surface of the protruding portion 101. And a battery (not shown) are connected.

A lock pin 103 is provided so as to project forward from the front surface of the lower end portion of the projecting portion 101 of the case 97.

Cylindrical receiving metal fittings 104, 104 are fixed to the lower surface adjacent to the surface of the casing 93 on which the connecting pins 94, 94 are provided in a protruding manner, whereby the receiving side connector 106 of the lighting voltage connector 105 is fixed. Is configured. The receiving fittings 104, 104 are connected to a starter (not shown) inside the casing 93.

Reference numeral 107 denotes a case of the fitting-side connector 108 of the lighting voltage connector 105, and connection pins 109 and 109 are provided so as to project from one surface of the case 107. Reference numeral 110 denotes a harness derived from the surface of the case 107 opposite to the surface on which the connection pins 109 and 109 are provided. The harness connects the connection pins 109 and 109 to a metal halide lamp (not shown). ing.

A lock hole 111 is formed on the surface of the case 107 adjacent to the surface on which the connecting pins 109, 109 are provided.

Therefore, in this connector structure 1D, the connection pins 109 and 109 of the fitting-side connector 108 of the lighting voltage connector 105 are fitted into the receiving metal fittings 104 and 104 of the receiving-side connector 106, whereby the fitting-side connector 108 and The receiving side connector 106 is connected to connect a metal halide lamp (not shown) and the starter.

Then, the fitting side connector 98 of the low-voltage connector 95 is fitted into the fitting holes 99 and 99 so that the connection pins 94 and 94 of the receiving side connector 96 are fitted therein. The receiving fittings 100, 100 in the holes 99, 99 are connected. As a result, the fitting-side connector 98 of the low-voltage connector 95 and the receiving-side connector 96 are coupled, and the ballast in the casing 93 and the battery (not shown) are connected.

Then, as described above, when the fitting-side connector 98 of the low-voltage connector 95 and the receiving-side connector 96 are joined, the lock pin 103 of the fitting-side connector 98 of the low-voltage connector 95 is lit up. The fitting-side connector 108 of 105 is fitted into the lock hole 111 of the fitting-side connector 108, whereby the fitting-side connector 108 of the lighting voltage connector 105 is locked in a state of being coupled with the receiving-side connector 106, and the fitting of the low-voltage connector 95 is carried out. Unless the side connector 98 is detached from the receiving side connector 96 and the lock pin 103 thereof does not come out of the lock hole 111 of the fitting side connector 108 of the lighting voltage connector 105, the fitting side connector 108 is detached from the receiving side connector 106. I can't. Therefore, it is possible to avoid disconnecting the fitting-side connector 108 of the lighting voltage connector 105 from the receiving-side connector 106 without shutting off the power supply unit, and it is possible to effectively prevent an electric shock accident.

FIG. 11 shows a sixth embodiment IE of the connector structure of the discharge lamp lighting device of the present invention.

Reference numeral 112 denotes a casing, on the upper surface of one surface of which is attached the substantially tubular receiving metal fittings 113, 113, and the receiving side connector 115 of the lighting voltage connector 114 is configured here. The brackets 113, 113 are connected to a starter (not shown) inside the casing 112.

Reference numeral 116 denotes a case of the fitting-side connector 117 of the lighting voltage connector 114, on the front surface of which connection pins 118, 118 are provided in a protruding manner. Reference numeral 119 denotes a harness led out from the rear surface of the case 116, and the harness 119 connects between the connection pins 118 and 118 and a metal halide lamp (not shown).

Connection pins 120 and 120 are provided on the one surface of the casing 112 so as to project at positions adjacent to the positions where the receiving fittings 113 and 113 are attached. These connection pins 120 1 and 120 2 are connected to a ballast (not shown) inside the casing 112. As a result, the receiving-side connector 122 of the low-voltage section connector 121 is configured.

Reference numeral 123 denotes a case of the fitting-side connector 124 in the low-voltage part connector 121. Fitting holes 125, 125 are formed in the front surface of the fitting-side connector 124, and receiving fittings 126, 126 are arranged in the fitting holes 125, 125. There is. Reference numeral 127 is a harness led out from the rear surface of the case 123, which connects between the above-mentioned metal fittings 126, 126 and a battery (not shown).

Reference numeral 128 is a stopper plate fixed to the rear surface of the case 123 by screwing, and the harness 127 is inserted through an insertion hole 129 formed in the stopper plate 128. A part 130 of the stopper plate 128 is projected upward, and a notch 131 having an opening at its upper edge is formed in the protruding portion 130.

Therefore, in this connector structure 1E, the connection pins 118, 118 of the fitting side connector 117 of the lighting voltage connector 114 are fitted into the receiving fittings 113, 113 of the receiving side connector 115, whereby The receiving-side connector 115 and the fitting-side connector 117 are connected to each other, and a metal halide lamp (not shown) and a starter in the casing 112 are connected.

Then, the connecting pins 120, 120 of the receiving side connector 122 are fitted into the fitting holes 125, 125 of the fitting side connector 124 of the low-voltage connector 121, and the receiving metal fittings 126, 126 in the fitting holes 125, 125 are fitted. The receiving side connector 122 and the fitting side connector 124 are coupled by this, and the battery (not shown) and the ballast in the casing 112 are connected.

At this time, the protruding portion 130 of the stopper plate 128 fixed to the case 123 of the fitting-side connector 124 of the low-voltage connector 121 contacts the rear surface of the case 116 of the fitting-side connector 117 of the lighting voltage connector 114. In contact with each other (the harness 119 is led out through the notch 131 of the stopper plate 128) to prevent the fitting-side connector 117 from coming off the receiving-side connector 115. Therefore, unless the fitting-side connector 124 of the low-voltage part connector 121 is removed from the receiving-side connector 122, the fitting-side connector 117 of the lighting voltage connector 114 cannot be removed from the receiving-side connector 115, and the power supply is cut off. It is possible to prevent the lighting voltage connector 114 from being opened when there is no electric shock, and to prevent an electric shock accident.

FIG. 12 shows a seventh embodiment 1F of the connector structure of the discharge lamp lighting device of the present invention.

Reference numeral 132 denotes a casing, on the upper portion of one surface of which a substantially tubular receiving metal piece 133, 133 is attached, and a receiving side connector 135 of the lighting voltage connector 134 is configured here. The brackets 133, 133 are connected to a starter (not shown) in the casing 132.

Reference numeral 136 denotes a case of the fitting-side connector 137 in the lighting voltage connector 134, and the connection pins 138 and 138 are provided so as to project from the front surface thereof. Reference numeral 139 denotes a harness led out from the rear surface of the case 136, and the harness 139 connects between the connection pins 138, 138 and a metal halide lamp (not shown).

Connection pins 140, 140 are provided on the one surface of the casing 132 so as to be adjacent to the positions at which the above-mentioned receiving fittings 133, 133 are attached. These connection pins 140, 140 are connected to a ballast (not shown) inside the casing 132. As a result, the receiving-side connector 142 of the low-voltage section connector 141 is configured.

Reference numeral 143 denotes a case of the fitting side connector 144 in the low voltage part connector 141, in which fitting holes 145 and 145 are formed in the front surface, and receiving fittings 146 and 146 are arranged in the fitting holes 145 and 145. There is. Reference numeral 147 is a harness that is led out from the rear surface of the case 143, and connects the receiving brackets 146 and 146 to a battery (not shown).

Reference numeral 148 denotes a stopper plate integrally formed at the front end portion of the case 143. The stopper plate 148 has a substantially crank shape when viewed from the side and has a pressing piece 150 protruding upward from the rear end of the intermediate portion 149. An eaves piece 151 slightly protruding forward is integrally formed at the upper end. Further, the pressing piece 150 is formed with a notch 152 which is open at the upper edge thereof including the eaves piece 151.

Therefore, in this connector structure 1F, the connection pins 138 and 138 of the fitting side connector 137 of the lighting voltage connector 134 are fitted into the receiving metal fittings 133 and 133 of the receiving side connector 135, thereby, The receiving-side connector 135 and the fitting-side connector 137 are connected to each other, and a metal halide lamp (not shown) and a starter in the casing 132 are connected.

Then, the connection pins 140 and 140 of the receiving side connector 142 are fitted into the fitting holes 145 and 145 of the fitting side connector 144 of the low-voltage part connector 141 to receive the metal fittings 146 in the fitting holes 145 and 145. , 146 so that the receiving-side connector 142 and the fitting-side connector 144 are coupled, and the battery (not shown) and the ballast in the casing 132 are connected.

Then, at this time, the pressing piece 150 of the stopper plate 148 fixed to the case 144 of the fitting side connector 144 of the low-voltage part connector 141 contacts the rear surface of the case 136 of the fitting side connector 137 of the lighting voltage connector 134. In contact with each other (the harness 139 is led out through the notch 152 of the stopper plate 148) to prevent the fitting-side connector 137 from coming off the receiving-side connector 135. Therefore, unless the fitting-side connector 144 of the low-voltage section connector 141 is removed from the receiving-side connector 142, the fitting-side connector 137 of the lighting voltage connector 134 cannot be removed from the receiving-side connector 135, and the power supply section is shut off. It is possible to prevent the lighting voltage connector 134 from being opened when there is no electric shock, and to effectively prevent an electric shock accident.

[0084]

[Effect of device]

 As is clear from the above description, the connector structure of the discharge lamp lighting device of the present invention is the connector structure of the discharge lamp lighting device that boosts the battery voltage and supplies a high voltage to the discharge lamp. , A low-voltage part connector that connects a part of a voltage lower than the lighting voltage is connected adjacent to the lighting voltage connector that connects between the discharge lamp and the lighting voltage supply circuit, and lights up when the low-voltage part connector is closed. It is characterized in that an opening preventing means for preventing the opening of the voltage connector is provided.

Therefore, in the connector structure of the discharge lamp lighting device of the present invention, the lighting voltage connector cannot be opened unless the connector for the low voltage portion is opened, so that the portion under high voltage is exposed. It is possible to avoid such a situation and effectively prevent the occurrence of a serious electric shock accident.

It should be noted that the shapes and structures of the respective parts shown in the above-described embodiments are merely examples of the embodiment when the present invention is carried out, and the technical scope of the present invention is thereby considered. Should not be construed in a limited way.

[Brief description of drawings]

1 shows a first embodiment of a connector structure of a discharge lamp lighting device according to the present invention together with FIG. 2, which is a perspective view showing a state in which both a lighting voltage connector and a low voltage part connector are opened. Is.

FIG. 2 is an enlarged cross-sectional view of an essential part showing a state in which a lighting voltage connector and a low voltage part connector are closed.

FIG. 3 shows a second embodiment of the connector structure of the discharge lamp lighting device of the present invention together with FIGS. 4 and 5, and is a sectional view of the whole.

FIG. 4 is a perspective view showing a state in which both a lighting voltage connector and a low voltage part connector are opened.

FIG. 5 is an enlarged cross-sectional view of an essential part showing a state in which a lighting voltage connector and a low voltage part connector are closed.

FIG. 6 shows a third embodiment of the connector structure of the discharge lamp lighting device according to the present invention together with FIGS. 7 and 8, and this drawing shows the main part showing the receiving side connector of the lighting voltage connector and the low voltage part connector. FIG.

FIG. 7 is an enlarged cross-sectional view of an essential part showing a state in which the fitting-side connector of the lighting voltage connector is coupled to the receiving-side connector.

FIG. 8 is an enlarged cross-sectional view of an essential part showing a state in which the fitting-side connector of the low-voltage part connector is coupled to the receiving-side connector from the state of FIG.

FIG. 9 is an enlarged cross-sectional view of an essential part showing a fourth embodiment of the connector structure of the discharge lamp lighting device of the present invention.

FIG. 10 is an enlarged sectional view of an essential part showing a fifth embodiment of the connector structure of the discharge lamp lighting device of the present invention.

FIG. 11 is an enlarged sectional view of an essential part showing a sixth embodiment of the connector structure of the discharge lamp lighting device of the present invention.

FIG. 12 is an enlarged sectional view of an essential part showing a seventh embodiment of the connector structure of the discharge lamp lighting device of the present invention.

FIG. 13 is an explanatory diagram showing an outline of a discharge lamp lighting device.

[Explanation of symbols]

 1 Connector structure of discharge lamp lighting device 3 Low voltage part connector 4 Lighting voltage connector 14, 15, 21 Opening prevention means 14 Projection part 15 Recessed part 21 Case 1A Discharge lamp lighting device connector structure 26 Starter (lighting voltage supply circuit) 27 Low Voltage part connector 28 Lighting voltage connector 33, 47, 49 Opening prevention means 33 Case 47 Locking piece 49 Engaging claw 1B Connector structure of discharge lamp lighting device 54 Low voltage part connector 57, 68, 70 Opening prevention means 57 Case 61 Lighting Voltage connector 68 Engagement concave portion 70 Hook 1C Connector structure of discharge lamp lighting device 74 Lighting voltage connector 80, 81, 90, 92 Opening prevention means 80 Locking piece 81 Locking hole 83 Low voltage part connector 90 Hook piece 92 Claw part 1D Discharge lamp lighting device connector structure 5 Low-voltage connector 103, 111 Opening prevention means 103 Lock pin 105 Lighting voltage connector 111 Lock hole 1E Connector structure of discharge lamp lighting device 114 Lighting voltage connector 121 Low-voltage connector 128 Stopper plate (opening prevention means) 1F Discharge lamp lighting Device connector structure 134 Lighting voltage connector 141 Low voltage part connector 148 Stopper plate (opening prevention means)

Front page continuation (72) Inventor Shinichi Irisawa 500 Kitawaki, Shimizu City, Shizuoka Prefecture Koito Manufacturing Co., Ltd. Shizuoka Factory

Claims (1)

[Scope of utility model registration request] 1. A connector structure of a discharge lamp lighting device for boosting a battery voltage to supply a high-voltage lighting voltage to a discharge lamp, which is adjacent to a lighting voltage connector for connecting a discharge lamp and a lighting voltage supply circuit. The discharge lamp lighting is characterized in that a low-voltage part connector for connecting a part of a voltage lower than the lighting voltage is provided, and an opening prevention means is provided for preventing the opening of the lighting voltage connector while the low-voltage part connector is closed. Device connector structure.