JPS6210608Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an impact-type high voltage generator that can be used as an ignition source for gas appliances and the like.

The conventional impact type high voltage generator is shown in Fig. 1A,
As shown in FIG. 1B, a cavity 1a is formed on one side of the insulating storage body 1 made of synthetic resin or the like, and an L is formed on the inner wall of the cavity 1a.
A high-voltage terminal 8 is formed with grooves 1b and 1b' (Fig. 1B), and has an impactor receiver 7 whose head protrudes into the cavity 1a on one side abuts on the other side, and whose tip portion protrudes outside on the other side. The piezoelectric element 6 is housed by making contact with the piezoelectric element 6. The operating body 2 is made of synthetic resin or the like and has a bottomed cylindrical shape with a cavity 2b formed therein, and the L-shaped groove 1 of the storage body 1 is formed on the outer wall of the opening.
cam windows 2a, 2a' are formed opposite to b, 1b';
The pin 5 of the impactor 4, which is slidably housed in the cavity 2b, is engaged with the cam windows 2a, 2a' via the drive spring 3. The operating body 2 is slidably engaged with the cavity 1a of the storage body 1 via the return spring 9, and the pin 5 is engaged with the L-shaped grooves 1a and 1a' of the storage body 1, respectively.

With the above structure, when the operating body 2 is pressed in the direction of arrow A, the pin 5 moves along the inclined sides of the cam windows 2a, 2a'. The operation will be explained with reference to Figs. 2A to 2E. Figs. 2A and 2B show the stationary state;
The figure shows pressing the operating body 2 in the direction of arrow A and moving the pin 5 to L.
When located at the step edge of the L-shaped groove 1b, FIG. 2D shows that when the operating body 2 is further pressed and the pin 5 is released from the step edge of the L-shaped groove 1b, in this case, the impactor 4 applies an impact to the piezoelectric element 6. In addition, piezoelectric element 6 generates a high voltage.
FIG. 2E shows when the pressure of the operating body 2 is released, and the impactor 4 returns to its original position by the spring force of the return spring 9. In this case, the impact force is transmitted through the container and exits to the outside, but if it is attached to a gas appliance, etc., it will resonate and generate a loud impact sound, and the impact force will escape to the outside, resulting in a large loss and impairing the ignition performance. It's making things worse.
Furthermore, the structure also has drawbacks, such as the relative position of the pins of the impactor moving due to the mutual relationship between the cam window and the L-shaped groove.

The present invention consists of an operating body with a rectangular operating piece formed on the opening side of a cylinder with a bottom, an impactor receiver on both ends on one side, a piezoelectric element in contact with a pedestal, and an impactor with a pin implanted on the other side. , an inner storage body each housing a drive spring that engages therewith is slidably engaged, and this operating body is slidably engaged with the outer storage body.

With the structure described above, when the operating body is pressed, the operating piece presses the pin, the pin moves along the slanted side of the cam window and separates from the operating piece, and the impactor applies an impact to the piezoelectric element, generating a high voltage. do. In this idea, (1)
Unlike conventional mechanisms, the mechanism in which an operating piece is formed on the opening side of the operating body to press the pin of the impactor does not require an L-shaped groove, and there is no complicated relationship between the cam window and the L-shaped groove. (2) When the impactor applies an impact to the piezoelectric element, the impact force is accumulated in the buffer spring and is not transmitted to the outside, so the impact noise is small and no resonance occurs even when installed in gas appliances, etc. (3) To provide a high voltage generator which eliminates the drawbacks of the conventional apparatus, such as repeating effective impact several times using the impact force accumulated in the spring to generate high voltage and improve ignition performance.

An embodiment of the present invention will be described below with reference to the drawings. In Fig. 3, reference numeral 21 denotes an insulating bottomed cylindrical outer storage body made of synthetic resin, with a hollow part 21b formed inside, and a hollow part 21b formed inside. A convex portion 21a with a concave portion is formed, and a high voltage terminal 32 is fitted into the convex portion 21a. Reference numeral 22 is a cylindrical operation body with a bottom made of synthetic resin, which has a cavity 22b formed inside, and rectangular operation pieces 22a and 22a' protruding from opposite sides of the opening side. A high-voltage terminal 28 is provided which abuts against each other and has a tip protruding to the outside. Reference numeral 24 denotes an insulating cylindrical inner storage body made of synthetic resin, and a partition wall 24b with a hole provided at an appropriate position in the center of the inside forms storage portions 24c and 24d, respectively.
Cam windows 24a, 24a' are formed at appropriate positions on the outer wall of 4c, and an impactor 29 is movably housed, in which a pin 30 that engages with the cam windows 24a, 24a' is implanted.
The drive spring 31 is telescopically housed in contact with the impactor 29. The cam windows 24a, 24a' have inclined sides. A stepped impactor receiver 26 whose head protrudes into the storage portion 24c from a hole in the partition wall 24b is abutted on one end of the storage portion 24d, and a stepped impactor receiver 26 whose head is fitted into the other opening tip is placed on the other end. The piezoelectric element 25 abutted against the pedestal 27 is accommodated. A buffer spring 23 is interposed between the bottom of the operating body 22 and the pedestal 27. The impactor 2 is placed in the storage portion 24c of the inner storage body 24.
A drive spring 31 is disposed between the high voltage terminal 9 and the high voltage terminal 32.

Next, the operation will be explained. When the operating body 22 is pressed in the direction of arrow B, the buffer spring 23 is compressed and stores spring force, and the operating pieces 22a and 22a'
0 and move the pin 30 in the direction of arrow B,
Therefore, the impactor 29 also moves in the same direction and the drive spring 3
1 and the drive spring 31 stores spring force. When the operating body 22 is further pressed in the direction of arrow B, the pin 3
0 is detached from the operation pieces 22a, 22a', and the impactor 29 applies an impact to the piezoelectric element 25 via the impactor receiver 26 due to the spring force of the stored driving spring 31, and the piezoelectric element 25 generates a high voltage. Operation piece 2 in this case
To explain the relationship between the movement of the pin 30 and the pin 30, FIG. . Next, when the operating body 22 is pressed in the direction of arrow B, the operating pieces 22a, 22a' press the pin 30 in the same direction and are moved, as shown in FIG. 4B. At this time, the pin 30 moves along the inclined sides of the cam windows 24a, 24a' of the inner storage body 24, and is about to separate from the operating pieces 22a, 22a'. Fourth
Figure C shows the case where the operating body 22 is further pressed, and pin 3
0 is detached from the operation pieces 22a, 22a' and rapidly moves to the left by the spring force stored in the drive spring 31. One pole of the high voltage generated by the piezoelectric element 25 in this way is connected to the impactor receiver 26 and the impactor 2.
9, a drive spring 31, a high voltage terminal 32, and a high voltage lead wire (not shown) connected to the high voltage terminal 32, which is led to one discharge electrode (not shown), and the other electrode is connected to a pedestal 27, a buffer spring 23 , the high-voltage terminal 28, and the high-voltage lead wire (not shown) connected to the high-voltage terminal 28 to the other discharge electrode (not shown) to generate spark discharge at discharge intervals to ignite the flammable gas. do.

The impactor drive mechanism of the present invention does not require an L-shaped groove, so there is no trouble in adjusting the relative positional relationship between the L-shaped groove and the cam window, and furthermore, processing is simplified. In addition, since the impact force is accumulated in the buffer spring and not released to the outside, there is almost no loss of impact force, and an effective high voltage can be generated several times.

As mentioned above, the high voltage generator according to the present invention produces quiet impact noise even when installed in gas appliances, has very good ignition performance due to the effective spark discharge that occurs several times, and is low in cost due to its simple mechanism. This has great practical effects.

[Brief explanation of drawings]

Figure 1A is a front sectional view of a conventional high voltage generator;
FIG. 1B is a detailed view of the L-shaped groove, FIGS. 2A to 2E are operational diagrams, FIG. 3 is a front sectional view of an embodiment of the present invention, and FIGS. 4A to 4C are operational diagrams. 21: Outer storage body, 21a: Convex portion, 21b: Hollow portion, 22: Operating body, 22a, 22a': Operating piece, 2
2b: hollow section, 23: buffer spring, 24: inner storage body, 24a, 24a': cam window, 24b: partition wall, 24c, 24d: storage section, 25: piezoelectric element,
26: Shock receiver, 27: Pedestal, 28: High voltage terminal,
29: Impactor, 30: Pin, 31: Drive spring, 3
2: High voltage terminal.

Claims (1)

[Claims for Utility Model Registration] [1] An operating body 22 in which rectangular operating body pieces 22a and 22a' are formed facing each other on the opening side of a bottomed cylinder.
Storage portions 24c and 24d are formed in the hollow portion 22b of the partition wall 24b having a hole near the cylindrical center portion, respectively, and cam windows 24a and 24 having inclined sides are formed on the outer wall of the storage portion 24c.
The impactor 29 having a pin 30 that engages with a' is movably stored, and the drive spring 31 is stored in engagement with the impactor 29, and the drive spring 31 is inserted into the storage portion 24d through the hole in the partition wall 24b. An impactor receiver 26 with a protruding head is brought into contact with the housing part 24 on the other side.
d The inner storage body 24, which stores the piezoelectric element 25 on which the pedestal 27 with the head inserted into the tip end thereof is stored in the storage portion 24d, is slidably engaged via the buffer spring 23, and A convex portion 21a is formed on the outside of a cylindrical bottom surface having a cylindrical shape, and a high voltage terminal 32 is fitted into the convex portion 21a.The drive spring 31 is brought into contact with the head of the high voltage terminal 32 of the outer housing body 21, and the inner housing is completed. The operation body 22 into which the tip of the storage portion 24c of the body 24 is fitted is inserted into the cavity 21.
b, and is slidably engaged with the operating body 22.
As the operation body 22 moves, the operation piece 22 of this operation body 22 moves.
a, 22a' are engaged with a pin 30 implanted in the impactor 29, and the pin 30 is inserted into the cam window 2.
A high voltage generator characterized in that it is moved along the inclined sides of 4a and 24a'. [2] The high voltage generator according to claim 1, wherein the outer storage body 21, the operating body 22, and the inner storage body 24 are made of an insulating material such as synthetic resin.