JP4613608B2 - Discharge lamp starting device, discharge lamp lighting device, vehicle headlamp apparatus, and vehicle - Google Patents

Description

  The present invention relates to a discharge lamp starting device, a discharge lamp lighting device, a vehicle headlamp, and a vehicle.

  In recent years, HID lamps have been generalized as lamps used in vehicle headlamps, and further downsizing of headlamps due to the expansion of the engine room has made the demand for downsizing of HID lamp lighting systems very strict.

  FIG. 15 shows a side sectional view of the vehicle headlamp fixture C, and FIG. 16 shows a system configuration of the vehicle headlamp fixture C. The vehicle headlamp fixture C includes a lamp housing 100 fixed to a vehicle body and a discharge lamp starting device A, a reflector 101, and a discharge lamp La such as an HID lamp. A lens 102 is attached to an opening provided on the front surface of the lens. An opening 104 for replacing the discharge lamp La is provided at the rear of the lamp housing 100, and a cap 105 is attached to the opening 104. In addition, an inverter INV that is operated by receiving a DC power supply (DC12V) from the battery BAT is attached to the lower portion of the lamp housing 100, and an electric wire 103 from the inverter INV is connected to the discharge lamp starting device A. The inverter INV supplies power to the discharge lamp La via the discharge lamp starting device A, and turns on the discharge lamp La. In the figure, reference numeral 106 denotes a connection connector for connecting a power supply line from the battery BAT, and reference numeral 107 denotes an optical axis adjusting screw.

  The above-described inverter INV and discharge lamp starting device A constitute a discharge lamp lighting device B.

  FIG. 17 shows a circuit configuration of the discharge lamp starting device A, and the igniter 110 applies a high-pressure pulse to the discharge lamp La to start the discharge lamp La, and is interposed between the input terminal t11 and the output terminal t21. Connected between the connected charging capacitor C1, the series circuit of the primary winding 15 of the pulse transformer P and the discharge gap SG connected in parallel to the charging capacitor C1, and the input terminal t10 and the output terminal t20. A series circuit of the filter choke coil L2 and the secondary winding 16 of the pulse transformer P, a filter choke coil L1 connected between the input terminal t12 and the output terminal t22, and choke coils L1 and L2 A series circuit of filter capacitors C3 and C4 connected between the output terminals, and a capacitor C2 connected in parallel to the series circuit of capacitors C3 and C4 Consists, connection point of the capacitors C3, C4 is grounded. The output terminals t20, t21, and t22 are connected to the input terminals t30, t31, and t32 of the socket 111, the input terminals t31 and t32 are connected to one end of the discharge lamp La, and the input terminal t30 is connected to the other end of the discharge lamp La. To do.

  Then, when a voltage is supplied from the inverter INV to the input terminals t10, t11, t12 in a state where the discharge lamp La is not turned on (where the input terminal t10 is 0V, the input terminal t11 is 600V, and the input terminal t12 is -380V is applied), and the capacitor C1 is charged via the input terminal t12 → choke coil L1 → output terminal t22 → input terminal t32 → input terminal t31 → output terminal t21 → capacitor C1 → input terminal t11. When the voltage of the capacitor C1 exceeds a predetermined voltage, the discharge gap SG is turned on, and the charge of the capacitor C1 flows to the primary winding 15 of the pulse transformer P through the discharge gap SG, and the secondary winding 16 of the pulse transformer P. A high voltage pulse voltage is generated. The high voltage pulse is applied to both ends of the discharge lamp La via the output terminals t21 and t20 and the input terminals t31 and t30, and the discharge lamp La is caused to break down and start. In addition, since the discharge lamp La is not conducted between the input terminals t31 and t32 unless the discharge lamp La is attached to the socket 111, it functions as a safety function for preventing a high voltage from being generated when the discharge lamp La is not attached.

  In the above-described conventional example, the igniter 110 and the socket 111 of the discharge lamp starting device A are configured separately, but an integrated discharge lamp starting device A is also provided, and the circuit configuration is the same as that of FIG. . However, the voltage applied between the center electrode and the outer peripheral electrode of the discharge lamp La also reaches around 30 kV, and in order to increase the size of the igniter, each component is secured while ensuring the insulation of the metal parts around the high voltage terminal of the pulse transformer P. It was difficult to place.

Therefore, as shown in FIG. 18, the secondary winding 16 is wound around the outer periphery of the magnetic core 120, and the primary winding 15 having a coating having a withstand voltage of 10 kV or more is directly provided on the secondary winding 16. Next, as shown in FIG. 19, the connection terminals 121 and 122 are electrically connected to both ends of the primary winding 15 and the connection terminals 123 and 124 are electrically connected to both ends of the secondary winding 16, respectively. The entire wire block is sealed with a thermosetting resin to form a transformer block 125. The transformer block 125 is further sealed with a thermoplastic resin 127 as shown in FIG. A configuration of apparatus A was provided. In FIG. 20, parts 128 such as a discharge gap, a capacitor, and a choke coil are mounted on the resin 127 and a socket 129 is formed. (For example, see Patent Document 1)
Further, the magnetic core 120 around which the secondary winding 16 is wound is sealed with a thermoplastic resin and molded once to reduce the size, and the coil frame around which the primary winding 15 is wound is attached to the resin. A configuration of a pulse transformer P was also provided. (For example, see Patent Document 2)
JP 2002-2107050 A JP 2004-319617 A

  The secondary winding 16 generates a high-pressure pulse between both ends when the discharge lamp is started. However, as shown in FIG. 21, the end face of the secondary winding 16 made of a rectangular wire has edges 31 and 32 of angles θ4 and θ5 = approximately 90 degrees at the edge thereof, so that both ends of the secondary winding 16 are particularly A partial discharge due to the electric field distribution occurs from one end 16a where a high potential is generated to the surrounding metal parts such as a metal shield cover, resulting in a loss of pulse energy. There was a delay in lighting due to insufficient supply of pulse energy to the discharge lamp when the lamp was started.

  The present invention has been made in view of the above-described reasons, and its purpose is to provide a discharge lamp starting device and a discharge lamp lighting device that suppress partial discharge generated from an end of a secondary winding to surrounding metal parts. Another object of the present invention is to provide a vehicle headlamp apparatus and a vehicle.

The invention of claim 1 includes a rod-shaped magnetic core, a secondary winding wound around the magnetic core, a resin for sealing the magnetic core and the secondary winding, and a primary winding wound around the outer periphery of the resin. A line, a capacitor and a discharge gap connected to the primary winding, a high-voltage terminal to which one of the ends of the secondary winding that generates a high potential is connected , and an outer casing for housing the device. An end surface of one end of the secondary winding connected to the high-voltage terminal is formed by two inclined surfaces forming an angle of approximately 120 degrees with each other, and one end of the secondary winding is one end of the high-voltage terminal The one end of the high voltage terminal is bent in the winding direction of the secondary winding so as to be away from the outer shell .

According to the present invention, since the electric field concentration generated at one end of the secondary winding where the high potential is generated is dispersed, the electric field concentration at one end of the secondary winding where the high potential is generated is suppressed. Thus, partial discharge to the surrounding metal parts is suppressed, and loss of pulse energy is reduced. That is, when the discharge lamp is started, a lighting delay due to insufficient supply of pulse energy to the discharge lamp is suppressed, and startability is improved. In addition, the distance between one end of the secondary winding where the high potential is generated and the outer shell is increased, so that electric field concentration at the end is further suppressed, and partial discharge on the surrounding metal parts is further suppressed. ing. That is, when the discharge lamp is started, a lighting delay due to insufficient supply of pulse energy to the discharge lamp is further suppressed, and the startability is further improved.

The invention of claim 2 includes a rod-shaped magnetic core, a secondary winding wound around the magnetic core, a resin that seals the magnetic core and the secondary winding, and a primary winding wound around the outer periphery of the resin. A line, a capacitor and a discharge gap connected to the primary winding, a high-voltage terminal to which one of the ends of the secondary winding that generates a high potential is connected , and an outer casing for housing the device. The end surface of one end of the secondary winding connected to the high-voltage terminal is formed with a curved edge, and the one end of the secondary winding is connected to one end of the high-voltage terminal, One end of the terminal is bent in the winding direction of the secondary winding so as to be away from the outer shell .

According to the present invention, there is no edge at one end of the secondary winding in which a high potential is generated, electric field concentration at the end is suppressed, partial discharge with respect to surrounding metal parts is suppressed, and pulse energy Loss is reduced. That is, when the discharge lamp is started, a lighting delay due to insufficient supply of pulse energy to the discharge lamp is suppressed, and startability is improved. In addition, the distance between one end of the secondary winding where the high potential is generated and the outer shell is increased, so that electric field concentration at the end is further suppressed, and partial discharge on the surrounding metal parts is further suppressed. ing. That is, when the discharge lamp is started, a lighting delay due to insufficient supply of pulse energy to the discharge lamp is further suppressed, and the startability is further improved.

The invention of claim 3 is characterized by comprising means for lighting the discharge lamp via the discharge lamp starting device of claim 1 or 2 .

According to the present invention, the same effect as the discharge lamp starting device of claim 1 or 2 can be obtained.

According to a fourth aspect of the invention, the discharge lamp lighting device of the third aspect is provided.

According to the present invention, the same effect as that of the discharge lamp lighting device of claim 3 can be obtained.

According to a fifth aspect of the present invention, the vehicle headlamp apparatus according to the fourth aspect is provided.

According to the present invention, the same effects as those of the vehicle headlamp apparatus of claim 4 can be obtained.

  As described above, in the present invention, electric field concentration at one end of the secondary winding in which a high potential is generated is suppressed, partial discharge to surrounding metal parts is suppressed, and loss of pulse energy is reduced. Thus, when the discharge lamp is started, the lighting delay due to insufficient supply of pulse energy to the discharge lamp is suppressed, and the startability is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
Embodiment 1 of this invention is demonstrated based on FIGS. The discharge lamp starting device A of the present embodiment applies a high-pressure pulse to the discharge lamp La to start a discharge lamp La such as an HID lamp, and includes a high-pressure block 1, a low-pressure circuit block 2, a case body. 3 and the shield cover 4 as main components. In addition, the discharge lamp starting device A of this embodiment has the same circuit configuration as FIG. 9 and 10 are external views of the HID lamp as the discharge lamp La.

  FIG. 4 is an external perspective view in which the high-voltage block 1 and the low-voltage circuit block 2 are combined. The high-voltage block 1 has a rod-shaped magnetic core 5 and a rectangular wire on the outer periphery of the magnetic core 5 as shown in FIG. A secondary winding 16 having edgewise winding in one layer, a holder 17 in which the magnetic core 5 around which the secondary winding 16 is wound, a high voltage terminal 6 and a low voltage terminal 7 assembled in the holder 17, Is sealed with resin by injection molding of an insulating synthetic resin to form a sealing portion 8 (see FIG. 6).

  As shown in FIG. 5, the holder 17 has side walls 17b, 17b standing at both ends in the longitudinal direction of a substantially rectangular central piece 17a having a U-shaped cross section, and sandwiching pieces 17c, 17c are raised from both sides of each side wall 17b. Has been established. The magnetic core 5 around which the secondary winding 16 is wound has the outer peripheral surfaces of both ends abutting against the locking pieces 17e formed at the tips of the holding pieces 17c, and the holding pieces 17c are spread on both sides while being spread on the center piece 17a. The outer peripheral surfaces of both ends of the magnetic core 5 are placed on the recesses 17d provided on the end surfaces of the respective side walls 17b, and the locking pieces 17e are locked to wind the secondary winding 16. The magnetic core 5 is fixed by the recess 17d and the locking piece 17e. Further, both end surfaces of the secondary winding 16 wound around the magnetic core 5 are in contact with the inner surface of the side wall 17b, and the movement of both ends of the magnetic core 5 wound around the secondary winding 16 is fixed. Yes.

  And the protrusion 17f is formed in the surface on the back side of the mounting surface of the magnetic core 5 in the one end side of the center piece 17a of the holder 17, and the high voltage terminal 6 for valve | bulb connection is assembled | attached to the protrusion 17f. Two inner electrodes 6a, 6a protrude on one surface of 17f, and an approximately L-shaped extending piece 6b extending from the inner electrodes 6a, 6a is provided on the other surface side, and an end of the extending piece 6b Is provided with a high voltage side connection portion 6c, and the high voltage side connection portion 6c has a high voltage side end portion 16a of the secondary winding 16 generating a high potential via a notch portion 17g formed in the central piece 17a. Connected by caulking.

  Moreover, the low voltage terminal 7 is assembled | attached to the side wall 17b of the other end side of the holder 17, and the low voltage terminal 7 has a substantially U-shaped low voltage side terminal part 7a and a low voltage side provided at one end of the low voltage side terminal part 7a. The low voltage side connection part 7b is connected to the low voltage side end part 16b of the secondary winding 16 by caulking through a notch part 17h formed in the central piece 17a.

  Then, the primary winding 15 is wound on the surface of the sealing portion 8 so as to be disposed on the outer periphery of the secondary winding 16, and high voltage pulses are generated by the primary and secondary windings 15 and 16 and the magnetic core 5. A pulse transformer P is configured. Here, when the sealing portion 8 is resin-molded, the socket portion 9 having the socket opening 9a to which the base 50 of the discharge lamp La is mounted is formed of the molding resin together with the sealing portion 8.

  The socket port 9a is formed with a cylindrical inner tube portion 12 fitted to an annular groove 53 provided on the bottom surface of the cap 50 inside the cylindrical outer tube portion 11 fitted to the outer peripheral surface of the cap 50. These two cylindrical portions 11 and 12 are arranged concentrically. The two inner electrodes 6a, 6a electrically connected to the high-voltage side end portion 16a of the secondary winding 16 are exposed at the bottom of the inner cylinder portion 12, and the tips of the inner electrodes 6a, 6a approach each other. It protrudes in the direction and is electrically connected to the center electrode 51 of the discharge lamp La.

  The low voltage side terminal portion 7 a of the low voltage terminal 7 is electrically connected to two outer electrodes 18 provided outside the outer cylinder portion 11, and the low voltage side end portion 16 b of the secondary winding 16 is connected to the low voltage terminal 7. Is electrically connected to the outer electrode 18 via The outer electrode 18 includes two elastic spring portions 18 a that protrude inward from the notches 11 a provided at the opening edge of the outer cylinder portion 11 and elastically contact the outer peripheral electrode 52 of the discharge lamp La, and are provided in the outer cylinder portion 11. The press-fitting piece 18b is press-fitted from the upper surface side into a press-fitting hole (not shown), and is fixed to the socket port 9a.

  On the other hand, as shown in FIG. 4, the low voltage circuit block 2 is formed by mounting circuit components such as a charging capacitor C1, capacitors C2 to C4, a discharge gap SG, choke coils L1 and L2, and a connector CN on a substrate 2a. Both ends of the primary winding 15 are connected. An igniter that generates a starting pulse in the secondary winding 16 by energizing the primary winding 15 is configured.

  As shown in FIG. 7, the case body 3 is formed in a rectangular parallelepiped shape having an open bottom surface, an insulating cylinder 3 a disposed on the outer periphery of the socket port 9 a is formed on the top surface, and a notch for inserting the connector CN is formed. It is formed by denting the opening edge on one side in a rectangular shape. The insulating cylinder 3a is formed with a plurality of guide grooves 3b having one end opened upward along the circumferential direction, and guide pins provided on the peripheral surface of the base 50 of the discharge lamp La in the guide grooves 3b. 54 is engaged. The shield cover 4 is formed of a rectangular parallelepiped metal whose upper surface is open.

  Thus, in assembling the discharge lamp starting device A, first, the low pressure circuit block 2 is assembled to the high pressure block 1 and both ends of the primary winding 15 are electrically connected to the low pressure circuit block 2. By covering the shield cover 4 from above and below, the assembly of the discharge lamp starting device A is completed. At this time, as shown by a solid line in FIG. 8, the longitudinal direction of the high-voltage side connection portion 6 c of the high-voltage terminal 6 is positioned substantially perpendicular to the bottom surface of the shield cover 4, and the tip of the high-voltage side connection portion 6 c is the shield cover 4. It faces the bottom of the.

  Next, the shape of the high voltage side end portion 16a of the secondary winding 16 of this embodiment will be described. FIG. 1 shows the relationship between the high voltage side connection portion 6c of the high voltage terminal 6 and the high voltage side end portion 16a of the secondary winding 16. FIG. 2 shows an enlarged view of the connection location between the high voltage side connection portion 6c and the high voltage side end portion 16a.

  First, the substantially L-shaped extending piece 6b is connected to the first piece 6d connected to the inner electrode 6a, and is bent at a substantially right angle from the first piece 6d toward the bottom surface of the shield cover 4 to be connected to the high voltage side. The high voltage side end portion 16a is electrically crimped to the high voltage side connection portion 6c by being caulked by a high voltage side connection portion 6c formed in a U-shaped cross section. Connected. The secondary winding 16 is a rectangular wire, and the end face of the high-voltage side end portion 16a is a peak having an angle θ1 formed by the inclined surfaces 20 and 21 from the approximate center of the end face to both sides as shown in FIG. The angles θ2 and θ3, which are cut into corners and formed by the inclined surfaces 20 and 21 with the side surfaces of the secondary winding 16, are also approximately 120 degrees.

  Here, in the high voltage side end portion 16 a of the conventional secondary winding 16 shown in FIG. 21, edges 31 and 32 having angles of θ4 and θ5 of about 90 degrees exist on the edge portion of the end face 30. Electric field concentration occurred from the shield toward the shield cover 4. On the other hand, the end face of the high voltage side end portion 16a of the present embodiment has three edges 22, 23, and 24 having an angle of 120 degrees, the electric field concentration is divided in three directions, and each edge has a substantial amount. Since an equal voltage is applied, electric field concentration occurring at one edge is reduced as compared with the conventional example of FIG. Then, a high voltage pulse endurance application test was performed at the high voltage side end portion 16a of the present embodiment in FIG. 3 and the conventional high voltage side end portion 16a in FIG. 21, and the result of repeatedly applying 30 kV to each high voltage side end portion 16a is In the present embodiment, the high voltage side end 16a was not abnormal even when 30 kV was applied 1 million times, but the conventional high voltage side end 16 a was burned out when 30 kV was applied 300,000 times.

  Thus, in this embodiment, the electric field concentration in the high voltage | pressure side edge part 16a is suppressed, the partial discharge with respect to metal components, such as the shield cover 4, is suppressed, and the loss of pulse energy reduces. That is, when the discharge lamp is started, a lighting delay due to insufficient supply of pulse energy to the discharge lamp is suppressed, and startability is improved.

  8, the second piece 6e of the extending piece 6b is bent in the winding direction of the secondary winding 16, and the high-voltage side end portion 16a of the secondary winding 16 and Increasing the distance from the bottom surface of the shield cover 4 also suppresses electric field concentration at the high voltage side end 16a. However, if the high voltage side connection portion 6c is moved away from the shield cover 4, the discharge lamp starting device A can be downsized. Therefore, it is impossible to achieve both downsizing and suppression of partial discharge only by increasing the distance between the high voltage side end portion 16a and the shield cover 4. Therefore, in order to achieve both downsizing and suppression of partial discharge, it is necessary to provide the shape of the high-voltage side end 16a of the present embodiment.

(Embodiment 2)
The discharge lamp starting device A of the present embodiment is different in the shape of the high-voltage side end 16a of the secondary winding 16 of the first embodiment, and the same components are denoted by the same reference numerals and description thereof is omitted.

  Hereinafter, the shape of the high voltage side end portion 16a of the secondary winding 16 of the present embodiment will be described. FIG. 11 shows the vicinity of the connection location between the high voltage side connection portion 6c of the high voltage terminal 6 and the high voltage side end portion 16a of the secondary winding 16, and FIG. 12 shows the connection location between the high voltage side connection portion 6c and the high voltage side end portion 16a. The enlarged view of is shown.

  The high-voltage side end portion 16a of the secondary winding 16 is electrically connected to the high-voltage side connection portion 6c by being caulked by a high-voltage side connection portion 6c formed in a U-shaped cross section. The secondary winding 16 is a rectangular wire, and the end surface 25 of the high-voltage side end portion 16a is formed into a curved surface 26 by processing the edge in the longitudinal direction into an arc shape.

  Therefore, in the present embodiment, there is no sharp edge on the end face 25 where the high potential is generated, electric field concentration at the high voltage side end 16a is suppressed, partial discharge on the metal parts such as the shield cover 4 is suppressed, and the pulse Energy loss is reduced. That is, when the discharge lamp is started, a lighting delay due to insufficient supply of pulse energy to the discharge lamp is suppressed, and startability is improved.

  In the present embodiment, similarly to the broken line in FIG. 8, the extended piece 6 b is bent in a direction away from the shield cover 4, so that the high voltage side end 16 a of the secondary winding 16 and the shield cover 4 are separated. The distance between them is increased to further suppress the electric field concentration on the end face 20 and further suppress the partial discharge to the metal parts such as the shield cover 4.

( Reference example )
The discharge lamp starting device A of the present reference example is different in the shape of the extended piece 6b of the high-voltage terminal 6 of the first embodiment, and the same components are denoted by the same reference numerals and description thereof is omitted.

Hereinafter, the shape of the extended piece 6b of the high voltage terminal 6 and the positional relationship with the shield cover 4 of this reference example will be described with reference to FIG. 13 (however, the high voltage side connection portion 6c and the high voltage side end portion 16a are omitted). explain. In the first embodiment, the substantially L-shaped extending piece 6b is bent at a substantially right angle from the first piece 6d connected to the inner electrode 6a toward the bottom surface of the shield cover 4 from the first piece 6d. It comprised the 2nd piece 6e which provided the high voltage | pressure side connection part 6c. However, in the present reference example , the second piece 6 e is bent in the axial direction of the magnetic core 5, and the second piece 6 e is substantially parallel to the bottom surface of the shield cover 4.

  Therefore, by bending the extending piece 6b away from the shield cover 4, the distance between the high-voltage side end 16a of the secondary winding 16 and the shield cover 4 is increased, and the electric field concentration on the end face 20 is increased. In addition, partial discharge on the metal parts such as the shield cover 4 is further suppressed.

( Embodiment 3 )
The inverter INV of FIG. 16 is connected to the discharge lamp La via the discharge lamp starting device A of any one of Embodiments 1 and 2 and the reference example , so that the inverter INV and the discharge lamp starting device A are connected as in the conventional example. A discharge lamp lighting device B that turns on the discharge lamp La by supplying electric power to the discharge lamp La can be configured, and the same effects as in any of the first and second embodiments and the reference example can be obtained.

( Embodiment 4 )
In the vehicle headlamp fixture C shown in FIGS. 15 and 16, if the discharge lamp starting device A according to any one of the first and second embodiments and the reference example is installed, the vehicle equipped with the discharge lamp lighting device B according to the third embodiment. The headlamp apparatus C can be configured, and the same effects as in any of the first and second embodiments and the reference example can be obtained.

( Embodiment 5 )
FIG. 14 shows an embodiment of a vehicle D provided with the vehicle headlamp fixture C of the fourth embodiment, and one vehicle headlamp fixture C is attached to each of the left and right sides of the front surface of the vehicle body. Also in this embodiment, the same effects as in any of Embodiments 1 and 2 and the reference example can be obtained.

It is a perspective view which shows the edge part vicinity of the high voltage | pressure terminal of the discharge lamp starter of Embodiment 1 of this invention. It is an enlarged view which shows the edge part vicinity of a high voltage terminal same as the above. It is a top view which shows the edge part of a secondary winding same as the above. It is a perspective view which shows the structure of the discharge lamp starter of Embodiment 1 of this invention. It is a perspective view which shows the state which assembled | attached the magnetic core same as the above to a holder. It is a perspective view which shows the structure of the sealing part same as the above. It is a perspective view which shows the structure of the discharge lamp starter equipped with the case same as the above. It is a top view which shows the edge part vicinity of a high voltage terminal same as the above. It is a top view which shows the structure of a HID lamp. It is a perspective view which shows the structure of a HID lamp. It is a perspective view which shows the edge part vicinity of the high voltage | pressure terminal of the discharge lamp starter of Embodiment 2 of this invention. It is an enlarged view which shows the edge part vicinity of a high voltage terminal same as the above. It is a perspective view which shows the edge part vicinity of the high voltage | pressure terminal of the discharge lamp starter of Embodiment 2 of this invention. It is a perspective view which shows the structure of a part of vehicle of Embodiment 5 of this invention. It is sectional drawing which shows the vehicle headlamp fixture. It is a figure which shows the system configuration | structure of the vehicle headlamp apparatus. It is a figure which shows the circuit structure of a discharge lamp starting device. It is a perspective view which shows the conventional pulse transformer. It is a perspective view which shows the conventional transformer block. It is a perspective view which shows the conventional discharge lamp starter. It is a top view which shows the edge part of the conventional secondary winding.

DESCRIPTION OF SYMBOLS 1 High voltage block 2 Low voltage circuit block 3 Case body 4 Shield cover 5 Magnetic core 6 High voltage terminal 6c High voltage side connection part 7 Low voltage terminal 8 Sealing part 15 Primary winding 16 Secondary winding 16a High voltage side end 20, 21 Slope 22 , 23, 24 Edge

Claims (5)

A rod-shaped magnetic core;
A secondary winding wound around a magnetic core;
A resin for sealing the magnetic core and the secondary winding;
A primary winding wound around the outer periphery of the resin;
A capacitor and discharge gap connected to the primary winding;
A high-voltage terminal to which one end where a high potential is generated is connected to both ends of the secondary winding ;
An outer shell for storing the device ,
The end surface of one end of the secondary winding connected to the high-voltage terminal is formed by two inclined surfaces that form an angle of approximately 120 degrees with each other ,
One end of the secondary winding is connected to one end of the high voltage terminal, and one end of the high voltage terminal is bent in the winding direction of the secondary winding so as to be separated from the outer shell. apparatus. A rod-shaped magnetic core;
A secondary winding wound around a magnetic core;
A resin for sealing the magnetic core and the secondary winding;
A primary winding wound around the outer periphery of the resin;
A capacitor and discharge gap connected to the primary winding;
A high-voltage terminal to which one end where a high potential is generated is connected to both ends of the secondary winding ;
An outer shell for storing the device ,
The end surface of one end of the secondary winding connected to the high-voltage terminal is formed with a curved edge at the edge ,
One end of the secondary winding is connected to one end of the high voltage terminal, and one end of the high voltage terminal is bent in the winding direction of the secondary winding so as to be separated from the outer shell. apparatus. A discharge lamp lighting device comprising means for lighting a discharge lamp via the discharge lamp starting device according to claim 1. A vehicle headlamp apparatus comprising the discharge lamp lighting device according to claim 3. A vehicle comprising the vehicle headlamp apparatus according to claim 4.

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