Piezoelectric igniter as well as lighter and ignition gun applying piezoelectric igniter

Abstract

The utility model discloses a piezoelectric igniter and a lighter and an ignition gun using the piezoelectric igniter, and the piezoelectric igniter comprises a shell, an operating piece, an impacting piece and a first elastic piece, the impact piece comprises an impact block which is provided with a mounting hole extending transversely; the limiting transverse pin is movably arranged in the mounting hole and can move in the length direction of the mounting hole; the operating piece is stressed to enable the impact piece to have at least two states. A first elastic piece is arranged on the impact piece, when the impact piece moves downwards, the impact piece possibly slightly swings in the transverse direction, the end of the limiting transverse pin in the length direction possibly rubs against the inner side wall of the containing cavity of the shell, the limiting transverse pin is arranged to be capable of moving in the length direction of the impact block installation hole, and therefore the position of the limiting transverse pin can be finely adjusted; therefore, when a user presses the operation piece, the resistance is small, the hand feeling is light, and the structure is reasonable and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of piezoelectric ignition, in particular to a piezoelectric igniter and a lighter and an ignition gun using the piezoelectric igniter. Background Art

[0002] Piezoelectric igniters are commonly used in ignition devices such as lighters and ignition guns, for example, the "Ceramic Piezoelectric Igniter" disclosed in the Chinese utility model patent with authorization number CN201339956Y.

[0003] A piezoelectric igniter generally includes a shell, an operating member, an impact member, a first elastic member, a piezoelectric ceramic, etc. The shell has a accommodating cavity; the operating member is movably arranged in the accommodating cavity of the shell and extends out of the top of the shell; the impact member is movably arranged in the accommodating cavity of the shell and is located below the operating member and is acted upon by the operating member; the first elastic member is arranged between the operating member and the impact member and is used to support the operating member upward; the impact member includes an impact block and a limiting cross pin fixed to the impact block. The impact member impacts the piezoelectric ceramic, and the piezoelectric ceramic converts the mechanical energy of the impact member into electrical energy, thereby igniting.

[0004] Because a first elastic member is provided on the impact member, the impact block may rotate slightly laterally when it moves downward, and the limiting transverse pin is fixed to the impact block and rotates laterally therewith. The end of the limiting transverse pin in the length direction may rub against the inner wall of the shell accommodating cavity, so that when the user presses the operating member, the resistance is greater and the hand feels heavier. Utility Model Content

[0005] The first technical problem to be solved by the present invention is to provide a piezoelectric igniter with less resistance and lighter feel when a user presses an operating member in response to the current status of the existing technology.

[0006] The second technical problem to be solved by the present invention is to provide a lighter.

[0007] The third technical problem to be solved by the present invention is to provide an ignition gun.

[0008] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a piezoelectric igniter, comprising

[0009] The housing has a receiving cavity, and the inner side wall of the receiving cavity has a limiting boss;

[0010] An operating member is movably disposed in the accommodating cavity of the shell and extends out of the top of the shell;

[0011] An impact member is movably disposed in the accommodating cavity of the housing and is located below the operating member and is acted upon by the operating member;

[0012] a first elastic member, disposed between the operating member and the impact member, and used to support the operating member upward;

[0013] Its characteristics are:

[0014] The impact member includes

[0015] an impact block having a laterally extending mounting hole;

[0016] A limiting transverse pin is movably disposed in the mounting hole and can move along the length direction of the mounting hole;

[0017] The operating member is subjected to force so that the striking member has at least the following two states:

[0018] In the first state, the first elastic member is in the initial state, and the limiting transverse pin is located above the limiting boss;

[0019] In the second state, the first elastic member is pressed downward by the operating member and is in an energy storage state, and the impact member moves downward until the limiting transverse pin rests on the limiting boss;

[0020] The first elastic member releases energy and has a tendency to restore the impact member to the first state.

[0021] To reduce noise, the limiting transverse pin is hidden within the housing cavity and is not exposed. Thus, the housing is relatively closed without an opening for the limiting transverse pin to penetrate. Noise (generated by contact between parts, such as the noise generated by the impact block) is not easily dissipated outside the housing through the opening, thereby reducing noise.

[0022] Preferably, a piezoelectric ceramic is further provided in the accommodating cavity and is located below the impact block. The piezoelectric ceramic is directly or indirectly impacted by the impact block and is used to convert the mechanical energy of the impact of the impact block into electrical energy.

[0023] In order to extend the service life of the piezoelectric ceramic, a receiving block is provided in the accommodating cavity and between the impact block and the piezoelectric ceramic, and the lower end of the receiving block is in contact with the piezoelectric ceramic;

[0024] In the second state, the impact block impacts downward onto the receiving block.

[0025] By providing the receiving block, the piezoelectric ceramic is indirectly impacted by the impact block, which can prevent the piezoelectric ceramic from being directly impacted by excessive force, thereby helping to extend the service life of the piezoelectric ceramic.

[0026] Preferably, a second elastic member is provided between the receiving block and the impact block, and the second elastic member is used to support the impact block upward.

[0027] Preferably, the second elastic member is a spring or a spring.

[0028] Preferably, the first elastic member is a spring or a spring.

[0029] In order to output electrical energy, a conductive member electrically connected to the output end of the piezoelectric ceramic is provided on the housing.

[0030] The technical solution adopted by the present invention to solve the second technical problem is: a lighter adopting the piezoelectric igniter as described above.

[0031] The technical solution adopted by the present invention to solve the third technical problem is: an ignition gun adopts the piezoelectric igniter as mentioned above.

[0032] Compared with the prior art, the advantages of the present invention are that a first elastic member is provided on the impact member, and when the impact member moves downward, it may rotate slightly laterally, and the end of the limiting cross pin in the length direction may rub against the inner wall of the shell accommodating cavity. By setting the limiting cross pin to be movable along the length direction of the impact block mounting hole, the limiting cross pin can automatically fine-tune its own position to reduce friction with the inner wall of the shell accommodating cavity. In this way, when the user presses the operating member, the resistance is smaller, the feel is lighter, and the structure is reasonable and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of a piezoelectric igniter according to an embodiment of the present utility model;

[0034] Figure 2 This is an exploded view of a piezoelectric igniter according to an embodiment of the present utility model;

[0035] Figure 3 This is a cross-sectional view of a piezoelectric igniter according to an embodiment of the present utility model;

[0036] Figure 4 This is another cross-sectional view of the piezoelectric igniter according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0038] See also Figures 1 to 4 The piezoelectric igniter comprises a housing 1, an operating member 2, a striking member 3, a first elastic member 4, a receiving block 5, a second elastic member 6, and a conductive member 7.

[0039] The housing 1 has a receiving cavity 11 , and a limiting boss 12 is provided on the inner side wall of the receiving cavity 11 .

[0040] The operating member 2 is movably disposed in the accommodating cavity 11 of the housing 1 and extends out of the top of the housing 1 .

[0041] The striking member 3 is movably disposed in the accommodating cavity 11 of the housing 1 , and is located below the operating member 2 and is acted upon by the operating member 2 .

[0042] The first elastic member 4 is disposed between the operating member 2 and the striking member 3 and is used to support the operating member 2 upward. The first elastic member 4 is a spring or a spring sheet.

[0043] The impact member 3 includes a striker block 31 and a limiting transverse pin 32. The striker block 31 has a transversely extending mounting hole; the limiting transverse pin 32 is movably disposed in the mounting hole and can move along the length of the mounting hole; the limiting transverse pin 32 is hidden in the accommodating cavity 11 of the housing 1 and is not exposed.

[0044] The operating member 2 is subjected to force, causing the striking member 3 to have the following two states: in the first state, the first elastic member 4 is in the initial state, and the limiting transverse pin 32 is located above the limiting boss 12; in the second state, the first elastic member 4 is pressed downward by the operating member 2 and is in an energy storage state, and the striking member 3 moves downward until the limiting transverse pin 32 rests on the limiting boss 12. The first elastic member 4 releases energy, tending to cause the striking member 3 to return to the first state.

[0045] The piezoelectric ceramic 4' is disposed in the accommodating cavity 11 and below the impact block 31. The piezoelectric ceramic 4' is directly or indirectly impacted by the impact block 31 and is used to convert the mechanical energy of the impact of the impact block 31 into electrical energy. A base 10 is disposed at the bottom of the piezoelectric ceramic 4'.

[0046] The receiving block 5 is located in the accommodating cavity 11 and between the impact block 31 and the piezoelectric ceramic 4 ′, with the lower end of the receiving block 5 in contact with the piezoelectric ceramic 4 ′. In the second state, the impact block 31 impacts downward onto the receiving block 5 .

[0047] The second elastic member 6 is provided between the receiving block 5 and the impact block 31, and is used to support the impact block 31 upward. The second elastic member 6 is a spring or a spring.

[0048] The conductive member 7 is disposed on the housing 1 and electrically connected to the output end of the piezoelectric ceramic 4 ′.

[0049] This embodiment also includes a lighter, which adopts the above-mentioned piezoelectric igniter.

[0050] This embodiment also includes an ignition gun, which adopts the above-mentioned piezoelectric igniter.

[0051] The working principle and usage process are as follows.

[0052] The user presses down the operating member 3 to drive the impact member 3 to move downward, and the impact block 31 impacts the receiving block 5. The receiving block 5 acts on the piezoelectric ceramic 4', and the piezoelectric ceramic 4' converts the mechanical energy of the impact into electrical energy, which is output to the outside through the conductive member 7.

[0053] Since the first elastic member 4 is provided on the impact member 3, the impact member 3 may rotate slightly laterally when it moves downward, and the end of the limiting transverse pin 32 in the length direction may rub against the inner wall of the accommodating cavity 11 of the shell 1. Because the limiting transverse pin 32 can move along the impact block 31, the position of the limiting transverse pin 32 itself can be automatically fine-tuned to reduce the friction with the inner wall of the accommodating cavity 11 of the shell 1. In this way, when the user presses the operating member 2, there is less resistance and the hand feels lighter.

[0054] At the same time, the limiting transverse pin 32 is not exposed on the shell 1, and the shell 1 does not need to be provided with a through hole for the limiting transverse pin 32 to pass through. The total area of ​​the side wall opening of the shell 1 is small, so that noise (for example, the impact sound generated when the impact block 31 hits the receiving block 5) is not easy to pass through the outside of the shell 1, which is conducive to reducing noise.

Claims

1. A piezoelectric igniter comprising The housing (1) has a receiving cavity (11), and a limiting boss (12) is provided on the inner side wall of the receiving cavity (11); An operating member (2) is movably disposed in the accommodating cavity (11) of the housing (1) and extends out of the top of the housing (1); An impact member (3) is movably disposed in the accommodating cavity (11) of the housing (1), and is located below the operating member (2) and is acted upon by the operating member (2); a first elastic member (4), disposed between the operating member (2) and the impact member (3), and used to support the operating member (2) upward; Its characteristics are: The impact member (3) comprises An impact block (31) having a transversely extending mounting hole; A limiting transverse pin (32) is movably arranged in the mounting hole and can move along the length direction of the mounting hole; The operating member (2) is subjected to force so that the impact member (3) has at least the following two states: In the first state, the first elastic member (4) is in the initial state, and the limiting transverse pin (32) is located above the limiting boss (12); In the second state, the first elastic member (4) is pressed downward by the operating member (2) and is in an energy storage state, and the impact member (3) moves downward until the limiting transverse pin (32) rests on the limiting boss (12); The first elastic member (4) releases energy and has a tendency to restore the impact member (3) to the first state.

2. The piezoelectric igniter according to claim 1, characterized in that: The limiting transverse pin (32) is hidden in the accommodating cavity (11) of the housing (1) and is not exposed.

3. The piezoelectric igniter according to claim 1, characterized in that: A piezoelectric ceramic (4') located below the impact block (31) is also provided in the accommodating cavity (11). The piezoelectric ceramic (4') is directly or indirectly impacted by the impact block (31) and is used to convert mechanical energy generated by the impact of the impact block (31) into electrical energy.

4. The piezoelectric igniter according to claim 3, characterized in that: A receiving block (5) is provided in the accommodating cavity (11) and between the impact block (31) and the piezoelectric ceramic (4'), and the lower end of the receiving block (5) is in contact with the piezoelectric ceramic (4'); In the second state, the impact block (31) impacts downward onto the receiving block (5).

5. The piezoelectric igniter according to claim 4, characterized in that: A second elastic member (6) is provided between the receiving block (5) and the impact block (31), and the second elastic member (6) is used to support the impact block (31) upwards.

6. The piezoelectric igniter according to claim 5, characterized in that: The second elastic member (6) is a spring or a spring.

7. The piezoelectric igniter according to claim 1, characterized in that: The first elastic member (4) is a spring or a spring.

8. The piezoelectric igniter according to any one of claims 3 to 6, characterized in that: The housing (1) is provided with a conductive member (7) electrically connected to the output end of the piezoelectric ceramic (4').

9. A lighter, characterized in that: A piezoelectric igniter according to any one of claims 1 to 8 is used.

10. An ignition gun, characterized in that: A piezoelectric igniter according to any one of claims 1 to 8 is used.

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