Miniature trigger switch and fuse head structure

Abstract

The utility model discloses a miniature trigger switch and fuse head structure, which is applied to the field of fuse signal control and comprises a circuit board, a first electrode and a second electrode. The first electrode is conductively connected with a first electrode connecting part in the circuit board, and the second electrode is conductively connected with a second electrode connecting part in the circuit board; the second electrode is arranged on the side, close to the fuse head shell, of the first electrode, and an insulation isolation structure is arranged between the first electrode and the second electrode; the second electrode at least shields part of the first surface of the first electrode and at most shields part of the surface, close to the fuse head shell, of the circuit board, so that when the fuse head shell collides with a target, the second electrode is extruded to make contact with the first electrode; and the first surface is the surface of the first electrode close to the fuse head shell. According to the utility model, the second electrode at least shields part of the first surface of the first electrode and at most shields part of the surface, close to the fuse head shell, of the circuit board, so that adverse effects on receiving and transmitting of radio waves can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of fuze signal control, in particular to a micro trigger switch and a fuze head structure. Background Art

[0002] Electric trigger fuzes (or radio proximity fuzes and other fuzes with electric triggering functions) that rely on the principle of electric ignition often use switches as sensitive devices that hit the target. When the fuze hits the target, the switch switches between on and off states, and the fuze uses this information to control ignition and detonate the warhead of the ammunition. At present, the trigger switch directly uses the force when the fuze head hits the target to close, so it is necessary to assemble the trigger switch on the head of the warhead fuze. However, setting the trigger switch on the head of the warhead fuze will have a large switch electrode coverage area, especially when the fuze head shell is set to metal material as the switch electrode, which will shield the electromagnetic waves, thereby causing interference to the fuze's transmission and reception of radio signals. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a miniature trigger switch and a fuse head structure, which solves the problem in the prior art that the switch electrode covers a large area, which will shield the electromagnetic waves and thus cause interference in the transmission and reception of radio signals by the fuse.

[0004] In order to solve the above technical problems, the utility model provides a miniature trigger switch, comprising:

[0005] A circuit board, a first electrode and a second electrode;

[0006] The first electrode is conductively connected to a first electrode lead portion in the circuit board, and the second electrode is conductively connected to a second electrode lead portion in the circuit board;

[0007] The second electrode is arranged on a side of the first electrode close to the fuse head shell, and an insulating isolation structure is arranged between the first electrode and the second electrode to isolate the first electrode from the second electrode;

[0008] The second electrode at least blocks part of the first surface of the first electrode, and at most blocks part of the surface of the circuit board that is close to the fuze head shell, so that when the fuze head shell hits the target, the second electrode is squeezed into contact with the first electrode; the first surface is the surface of the first electrode that is close to the fuze head shell.

[0009] Optionally, the second electrode is a bowl-shaped electrode structure.

[0010] Optionally, the second electrode covers the first surface of the entire first electrode.

[0011] Optionally, the second electrode is welded on the surface of the circuit board along the circumferential direction, and the second electrode is conductively connected to the second electrode lead portion in the circuit board.

[0012] Optionally, a conductive layer is provided in the area where the circuit board is welded to the second electrode, so that the second electrode lead portion is conductively connected to the second electrode through the conductive layer.

[0013] Optionally, the first electrode is a columnar electrode structure;

[0014] The first electrode is embedded in the circuit board.

[0015] Optionally, the insulating isolation structure is circumferentially arranged on a side of the first electrode to wrap a portion of the first electrode, and an outer side of the insulating isolation structure is in contact with the second electrode;

[0016] The insulating isolation structure is connected to the surface of the circuit board facing the fuze head shell.

[0017] Optionally, the circuit board is provided with a first conductive opening connected to the first conductive wire and a second conductive opening connected to the second conductive wire;

[0018] The first wire is conductively connected to the first electrode lead portion to conductively lead out the first electrode;

[0019] The second wire is conductively connected to the second electrode lead portion to conductively lead out the second electrode.

[0020] Optionally, a mounting through hole for connecting to the outside is provided in the circuit board.

[0021] The utility model also provides a fuze head structure, comprising:

[0022] Non-metallic fuze head casing, and miniature trigger switch as described above;

[0023] The second electrode in the micro trigger switch is arranged on a side close to the non-metallic fuse head shell, so that when the non-metallic fuse head shell hits a target, the second electrode is squeezed to contact the first electrode.

[0024] It can be seen that the micro trigger switch provided by the utility model includes a circuit board, a first electrode and a second electrode, the first electrode is conductively connected to the first electrode lead portion in the circuit board, the second electrode is conductively connected to the second electrode lead portion in the circuit board, the second electrode is arranged on the side of the first electrode close to the fuse head shell, an insulating isolation structure is arranged between the first electrode and the second electrode to form an isolation between the first electrode and the second electrode, the second electrode at least blocks part of the first surface of the first electrode, and at most blocks part of the surface of the circuit board close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode is squeezed to contact the first electrode, and the first surface is the surface of the first electrode close to the fuse head shell. The utility model completes the control by having the second electrode at least block the first surface of the first electrode, and at most block part of the surface of the circuit board close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode is squeezed to contact the first electrode, and at the same time reduces the setting area of ​​the second electrode, avoids the transmission and reception of radio waves, and avoids adverse effects.

[0025] In addition, the utility model also provides a fuze head structure, which also has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of a micro trigger switch provided by an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of a top view of a micro trigger switch provided in an embodiment of the utility model;

[0029] Figure 3 A schematic diagram of the structure of another micro trigger switch provided by an embodiment of the utility model;

[0030] Figure 4 A schematic diagram of the structure of another micro trigger switch provided by an embodiment of the utility model;

[0031] Figure 5 An exemplary diagram of a micro trigger switch provided by an embodiment of the utility model;

[0032] Figures 1 to 5 In the figure, the reference numerals are described as follows:

[0033] 10-circuit board, 11-first conductive opening, 12-second conductive opening;

[0034] 20- a first electrode;

[0035] 30 - second electrode, 31 - bowl-shaped electrode structure;

[0036] 40-insulation isolation structure;

[0037] 50-Mounting through holes. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Embodiment 1:

[0040] Please refer to Figure 1 , Figure 1 A schematic diagram of a micro trigger switch provided by an embodiment of the utility model. The micro trigger switch may include:

[0041] A circuit board 10, a first electrode 20 and a second electrode 30;

[0042] The first electrode 20 is conductively connected to the lead portion of the first electrode 20 in the circuit board 10 , and the second electrode 30 is conductively connected to the lead portion of the second electrode 30 in the circuit board 10 ;

[0043] The second electrode 30 is disposed on a side of the first electrode 20 close to the fuse head shell, and an insulating isolation structure 40 is disposed between the first electrode 20 and the second electrode 30 to isolate the first electrode 20 from the second electrode 30;

[0044] The second electrode 30 at least blocks part of the first surface of the first electrode 20, and at most blocks part of the surface of the circuit board 10 that is close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode 30 is squeezed into contact with the first electrode 20; the first surface is the surface of the first electrode 20 that is close to the fuse head shell.

[0045] In this embodiment, the first electrode 20 is conductively connected to the first electrode 20 conductive portion of the circuit board 10, and the second electrode 30 is conductively connected to the second electrode 30 conductive portion of the circuit board 10, so as to ensure that when the first electrode 20 and the second electrode 30 are in contact and conductive connection, the on and off states in the circuit are switched to realize signal control. In order to reduce the complexity of preparation and ensure the accuracy of switch triggering, the first electrode 20 and the second electrode 30 can be fixedly connected to the circuit board 10 to ensure the stability of the structure. In this embodiment, the second electrode 30 is arranged on the side of the first electrode 20 close to the fuse head shell, and an insulating isolation structure 40 is arranged between the first electrode 20 and the second electrode 30 to isolate the first electrode 20 from the second electrode 30. It should be noted that a corresponding area is formed between the first electrode 20 and the second electrode 30, and in the corresponding area, the insulating isolation structure 40 is not arranged between the first electrode 20 and the second electrode 30, so as to ensure that the second electrode 30 is deformed and connected to the first electrode 20 when being squeezed. In order to ensure that the second electrode 30 can be connected to the first electrode 20 after deformation, the second electrode 30 is arranged in this embodiment to at least cover part of the first surface of the first electrode 20. In addition, in this embodiment, by setting the second electrode 30 to at most cover part of the surface of the circuit board 10 close to the fuse head shell, compared with the method of setting the fuse head shell to be a metal material as the second electrode 30 in the prior art, the second electrode 30 in this embodiment covers a smaller area of ​​the circuit board 10, which can reduce the shielding effect on electromagnetic waves. It should be further explained that, in this embodiment, the smaller the area of ​​the circuit board 10 covered by the second electrode 30 is, the smaller the shielding effect on the electromagnetic waves is, thereby avoiding adverse effects on the reception and transmission of radio waves. In this embodiment, the isolation distance between the first electrode 20 and the second electrode 30 can be set to a minimum safe isolation distance that can ensure that the first electrode 20 and the second electrode 30 are disconnected, so that the second electrode 30 only covers the first electrode 20 and the area formed by the minimum safe isolation distance extending outward from the plane of the circuit board 10 by the first electrode 20, so as to minimize the area of ​​the circuit board 10 covered by the second electrode 30, thereby ensuring that adverse effects on the reception and transmission of radio waves are avoided to the greatest extent.

[0046] The present embodiment does not limit the specific shape of the first electrode 20 and the second electrode 30, as long as the second electrode 30 can be deformed by external compression and contact and connect with the first electrode 20. For example, the second electrode 30 can be set as a shell, covering the side of the first electrode 20 close to the fuse head shell, or it can be set to other shapes. When the first electrode 20 and the second electrode 30 are fixedly connected to the circuit board 10, the present embodiment also does not limit the specific way in which the first electrode 20 and the second electrode 30 are connected to the circuit board 10. Correspondingly, the present embodiment also does not limit the specific way in which the first electrode 20 is conductively connected to the conductive part of the first electrode 20 in the circuit board 10, and the specific way in which the second electrode 30 is conductively connected to the conductive part of the second electrode 30 in the circuit board 10. In order to ensure that the micro trigger switch is not interfered with in transmitting and receiving electromagnetic wave signals, the fuse head shell in the present embodiment needs to be set to a non-metallic material.

[0047] Further, in order to ensure that the first electrode 20 and the second electrode 30 are respectively connected to the external load, it can be referred to Figure 2 , Figure 2 A schematic diagram of a top view of a micro trigger switch provided by an embodiment of the utility model. The circuit board 10 may be provided with a first conductive opening 11 connected to a first conductive wire and a second conductive opening 12 connected to a second conductive wire;

[0048] The first wire is conductively connected to the lead portion of the first electrode 20 to conductively lead the first electrode 20 out;

[0049] The second wire is conductively connected to the lead portion of the second electrode 30 to conductively lead the second electrode 30 out.

[0050] In this embodiment, the first conductive opening 11 and the second conductive opening 12 are provided in the circuit board 10, and the first wire is passed through the first conductive opening 11 to be conductively connected to the conductive portion of the first electrode 20, so that the first electrode 20 is conductively led out to connect to an external load, and the second wire is passed through the second conductive opening 12 to be conductively connected to the conductive portion of the second electrode 30, so that the second electrode 30 is conductively led out to connect to an external load, thereby realizing the switch control on and off state. In this embodiment, the first electrode 20 can expose the conductive structure through the first conductive opening 11 to be conductively connected to the first wire, and the second electrode 30 can expose the conductive structure through the second conductive opening 12 to be conductively connected to the second wire.

[0051] Furthermore, in order to improve the convenience of the micro trigger switch being installed and connected to the outside, a mounting through hole 50 connected to the outside may be provided in the circuit board 10 .

[0052] In this embodiment, by providing a mounting through hole 50 in the circuit board 10, the circuit board 10 can be connected to the fuse head housing through the through hole, for example, the circuit board 10 can be fixed by a connecting member such as a bolt. This embodiment does not limit the specific number of mounting through holes 50 provided in the circuit board 10, as long as it can ensure that the micro trigger switch is firmly connected to the outside. For example, the specific number of mounting through holes 50 provided in the circuit board 10 can be 1, or the number of mounting through holes 50 provided in the circuit board 10 can be multiple.

[0053] The micro trigger switch provided by the embodiment of the utility model includes a circuit board 10, a first electrode 20 and a second electrode 30. The first electrode 20 is conductively connected to the conducting portion of the first electrode 20 in the circuit board 10, and the second electrode 30 is conductively connected to the conducting portion of the second electrode 30 in the circuit board 10. The second electrode 30 is arranged on the side of the first electrode 20 close to the fuse head shell. An insulating isolation structure 40 is arranged between the first electrode 20 and the second electrode 30 to form an isolation between the first electrode 20 and the second electrode 30. The second electrode 30 at least blocks a portion of the first surface of the first electrode 20, and at most blocks a portion of the surface of the circuit board 10 close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode 30 is squeezed to contact the first electrode 20. The first surface is the surface of the first electrode 20 close to the fuse head shell. The utility model achieves control by having the second electrode 30 at least block a portion of the first surface of the first electrode 20, and at most block a portion of the surface of the circuit board 10 that is close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode 30 is squeezed to contact the first electrode 20, and at the same time, the setting area of ​​the second electrode 30 is reduced to avoid adverse effects on the reception and transmission of radio waves. In addition, the utility model embodiment sets a first conductive opening 11 and a second conductive opening 12 in the circuit board 10, and passes the first wire and the second wire into the circuit board 10, so as to electrically lead the first electrode 20 and the second electrode 30 out, connect the external load, and thus realize the on and off state of the switch control; by setting a mounting through hole 50 in the circuit board 10, the circuit board 10 can be connected to the outside through the through hole, thereby improving the convenience of installing the micro trigger switch.

[0054] Embodiment 2:

[0055] Please refer to Figure 3 , Figure 3 A schematic diagram of another micro trigger switch provided by an embodiment of the utility model. The micro trigger switch may include:

[0056] A circuit board 10, a first electrode 20 and a second electrode;

[0057] The first electrode 20 is conductively connected to the first electrode 20 lead portion in the circuit board 10, and the second electrode is conductively connected to the second electrode lead portion in the circuit board 10;

[0058] The second electrode is arranged on a side of the first electrode 20 close to the fuse head shell, and an insulating isolation structure 40 is arranged between the first electrode 20 and the second electrode to form isolation between the first electrode 20 and the second electrode;

[0059] The second electrode at least covers a portion of the first surface of the first electrode 20, and at most covers a portion of the surface of the circuit board 10 close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode is squeezed to contact the first electrode 20; the first surface is the surface of the first electrode 20 close to the fuse head shell;

[0060] The second electrode is a bowl-shaped electrode structure 31 .

[0061] In this embodiment, the second electrode is set as a bowl-shaped electrode structure 31, which can ensure that the second electrode covers the outside of the first electrode 20 while ensuring the minimum coverage area of ​​the second electrode, further reducing the interference with the electromagnetic wave signal. In order to ensure the regularity of the shape of the second electrode, the second electrode can also be set as a spherical crown structure in this embodiment. In this embodiment, the first electrode 20 needs to have adaptive strength and rigidity to ensure that the second electrode covers the outside of the first electrode 20.

[0062] The micro trigger switch provided by the embodiment of the utility model includes a circuit board 10, a first electrode 20 and a second electrode. The first electrode 20 is conductively connected to the conducting portion of the first electrode 20 in the circuit board 10, and the second electrode is conductively connected to the conducting portion of the second electrode in the circuit board 10. The second electrode is arranged on the side of the first electrode 20 that is close to the fuse head shell. An insulating isolation structure 40 is arranged between the first electrode 20 and the second electrode to form an isolation between the first electrode 20 and the second electrode. The second electrode at least blocks a portion of the first surface of the first electrode 20, and at most blocks a portion of the surface of the circuit board 10 that is close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode is squeezed to contact the first electrode 20. The first surface is the surface of the first electrode 20 that is close to the fuse head shell, and the second electrode is a bowl-shaped electrode structure 31. The utility model completes control by having the second electrode at least block a portion of the first surface of the first electrode 20, and at most block a portion of the surface of the circuit board 10 that is close to the fuse head shell, so as to squeeze the second electrode to contact the first electrode 20 when the fuse head shell hits the target, and at the same time reduce the setting area of ​​the second electrode to avoid adverse effects on the reception and transmission of radio waves. The second electrode is set to a bowl-shaped electrode structure 31, which can ensure that the second electrode covers the outside of the first electrode 20 while ensuring the minimum coverage area of ​​the second electrode, thereby further reducing interference with electromagnetic wave signals.

[0063] Embodiment 3:

[0064] Please refer to Figure 4 , Figure 4 A schematic diagram of the structure of another micro trigger switch provided by the embodiment of the utility model. The micro trigger switch may include:

[0065] A circuit board 10, a first electrode 20 and a second electrode 30;

[0066] The first electrode 20 is conductively connected to the lead portion of the first electrode 20 in the circuit board 10 , and the second electrode 30 is conductively connected to the lead portion of the second electrode 30 in the circuit board 10 ;

[0067] The second electrode 30 is disposed on a side of the first electrode 20 close to the fuse head shell, and an insulating isolation structure 40 is disposed between the first electrode 20 and the second electrode 30 to isolate the first electrode 20 from the second electrode 30;

[0068] The second electrode 30 at least covers a portion of the first surface of the first electrode 20, and at most covers a portion of the surface of the circuit board 10 close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode 30 is squeezed to contact the first electrode 20; the first surface is the surface of the first electrode 20 close to the fuse head shell;

[0069] The second electrode 30 covers the entire first surface of the first electrode 20 .

[0070] In the present embodiment, the second electrode 30 is configured to cover the first surface of the entire first electrode 20, so as to reduce the interference of the second electrode 30 on the electromagnetic wave signal, and at the same time ensure that the second electrode 30 can contact with the first electrode 20 when deformed by external compression, thereby avoiding the risk of insensitive switch triggering.

[0071] Furthermore, in order to ensure the stability of the second electrode 30 fixed on the surface of the circuit board 10 , the second electrode 30 can be welded on the surface of the circuit board 10 along the circumferential direction, and the second electrode 30 is conductively connected to the second electrode 30 lead portion in the circuit board 10 .

[0072] In the present embodiment, the second electrode 30 is connected to the circuit board 10 by welding, so that the stability of the connection between the second electrode 30 and the circuit board 10 can be ensured, and the second electrode 30 is connected to the circuit board 10 by circumferential welding to ensure the stability of the connection of the second electrode 30. At the same time, a closed space can be formed between the first electrode 20 and the second electrode 30 to prevent water vapor and the like from invading and damaging the electrodes, thereby increasing the service life of the micro trigger switch.

[0073] Furthermore, in order to improve the convenience of connecting the second electrode 30 with the lead portion of the second electrode 30 , a conductive layer may be provided in the area where the circuit board 10 and the second electrode 30 are welded, so that the lead portion of the second electrode 30 is conductively connected to the second electrode 30 through the conductive layer.

[0074] In this embodiment, the second electrode 30 is conductively connected to the connecting portion of the second electrode 30 by using a conductive layer, and the second electrode 30 is welded to the conductive layer by welding, thereby improving the convenience of connecting the second electrode 30 and reducing the complexity of setting the micro trigger switch.

[0075] Furthermore, in order to ensure the stability of the connection between the first electrode 20 and the circuit board 10, the first electrode 20 may be a columnar electrode structure;

[0076] The first electrode 20 is embedded in the circuit board 10 .

[0077] In this embodiment, the first electrode 20 is configured as a columnar electrode structure, and the first electrode 20 is embedded in the circuit board 10, wherein a portion of the first electrode 20 extends to the side of the circuit board 10 close to the fuse head shell, so that when the second electrode 30 is deformed by external pressure, it is in contact with the extended first electrode 20. In this embodiment, the second electrode 30 can be embedded in the circuit board 10 by welding or riveting, as well as other connection methods.

[0078] Furthermore, in order to ensure that the first electrode 20 is isolated from the second electrode 30, the insulating isolation structure 40 may be circumferentially disposed on the side of the first electrode 20 to wrap a portion of the first electrode 20, and the outer side of the insulating isolation structure 40 is in contact with the second electrode 30;

[0079] The insulating isolation structure 40 is connected to the surface of the circuit board 10 facing the fuse head housing.

[0080] In this embodiment, the insulating isolation structure 40 is circumferentially arranged on the side of the first electrode 20 and in contact with the second electrode 30, thereby ensuring isolation between the first electrode 20 and the second electrode 30. At the same time, when welding the second electrode 30, the insulating isolation structure 40 can be used to limit the second electrode 30, while preventing the welding material at the welding point of the second electrode 30 from flowing to the first electrode 20, thereby ensuring the quality rate of the micro trigger switch preparation.

[0081] The micro trigger switch provided by the embodiment of the utility model includes a circuit board 10, a first electrode 20 and a second electrode 30. The first electrode 20 is conductively connected to the conducting portion of the first electrode 20 in the circuit board 10, and the second electrode 30 is conductively connected to the conducting portion of the second electrode 30 in the circuit board 10. The second electrode 30 is arranged on the side of the first electrode 20 close to the fuse head shell. An insulating isolation structure 40 is arranged between the first electrode 20 and the second electrode 30 to form an isolation between the first electrode 20 and the second electrode 30. The second electrode 30 at least blocks a portion of the first surface of the first electrode 20, and at most blocks a portion of the surface of the circuit board 10 close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode 30 is squeezed to contact the first electrode 20. The first surface is the surface of the first electrode 20 close to the fuse head shell, and the second electrode 30 blocks the entire first surface of the first electrode 20. The utility model completes control by having the second electrode 30 at least block a portion of the first surface of the first electrode 20, and at most block a portion of the surface of the circuit board 10 that is close to the fuse head shell. When the fuse head shell hits the target, the second electrode 30 is squeezed to contact the first electrode 20, and the setting area of ​​the second electrode 30 is reduced to avoid adverse effects on the reception and transmission of radio waves. The second electrode 30 is set to block the first surface of the entire first electrode 20, so that the sensitivity of the switch triggering can be guaranteed while reducing the interference of the second electrode 30 on the electromagnetic wave signal. In addition, the embodiment of the utility model can ensure the stability of the connection between the second electrode 30 and the circuit board 10 by welding the second electrode 30 to the circuit board 10, and at the same time can form a closed space between the first electrode 20 and the second electrode 30 to prevent water vapor and the like from invading and damaging the electrodes, thereby improving the service life of the micro trigger switch; the second electrode 30 is conductively connected to the connecting portion of the second electrode 30 by using a conductive layer, and the second electrode 30 is welded to the conductive layer by welding, thereby improving the convenience of the connecting of the second electrode 30; the first electrode 20 is set as a columnar electrode structure, and the first electrode 20 is embedded in the circuit board 10, thereby ensuring the stability of the connection between the first electrode 20 and the circuit board 10; the insulating isolation structure 40 is circumferentially arranged on the side of the first electrode 20 and contacts the second electrode 30, thereby ensuring isolation between the first electrode 20 and the second electrode 30, and at the same time, when welding the second electrode 30, the insulating isolation structure 40 can be used to limit the second electrode 30, and the welding material at the welding point of the second electrode 30 can be prevented from flowing to the first electrode 20, thereby ensuring the quality rate of the micro trigger switch preparation.

[0082] To make the embodiments of the present invention easier to understand, the micro trigger switch can refer to Figure 5 , Figure 5 This is an example diagram of a micro trigger switch provided by an embodiment of the utility model. Specifically, it may include:

[0083] A circuit board 10, a first electrode 20 and a second electrode; the second electrode is a bowl-shaped electrode structure 31; the second electrode covers the entire first surface of the first electrode 20;

[0084] The first electrode 20 is conductively connected to the lead portion of the first electrode 20 in the circuit board 10, and the second electrode is conductively connected to the lead portion of the second electrode in the circuit board 10; the second electrode is welded to the surface of the circuit board 10 along the circumferential direction, and the second electrode is conductively connected to the lead portion of the second electrode in the circuit board 10; a conductive layer is provided in the area where the circuit board 10 and the second electrode are welded, so that the lead portion of the second electrode is conductively connected to the second electrode through the conductive layer; the first electrode 20 is a columnar electrode structure; the first electrode 20 is embedded in the circuit board 10;

[0085] The second electrode is arranged on a side of the first electrode 20 close to the fuse head shell, and an insulating isolation structure 40 is arranged between the first electrode 20 and the second electrode to isolate the first electrode 20 from the second electrode; the insulating isolation structure 40 is arranged on the side of the first electrode 20 along the circumferential direction, wrapping a part of the first electrode 20, and the outer side of the insulating isolation structure 40 is in contact with the second electrode;

[0086] The insulating isolation structure 40 is connected to the surface of the circuit board 10 that is close to the fuse head housing.

[0087] The second electrode at least covers a portion of the first surface of the first electrode 20, and at most covers a portion of the surface of the circuit board 10 close to the fuse head shell, so that when the fuse head shell hits the target, the second electrode is squeezed to contact the first electrode 20; the first surface is the surface of the first electrode 20 close to the fuse head shell;

[0088] The circuit board 10 is provided with a first conductive opening connected to the first conductive wire and a second conductive opening connected to the second conductive wire; the first conductive wire is conductively connected to the conductive portion of the first electrode 20 to conductively lead out the first electrode 20; the second conductive wire is conductively connected to the conductive portion of the second electrode to conductively lead out the second electrode; the circuit board 10 is provided with a mounting through hole connected to the outside.

[0089] The following is an introduction to the fuse head structure provided in an embodiment of the utility model. The fuse head structure described below and the micro trigger switch described above can be referenced to each other.

[0090] The fuze head structure provided by the embodiment of the utility model may include:

[0091] Non-metallic fuze head casing, and miniature trigger switch as described above;

[0092] The second electrode in the micro trigger switch is arranged on a side close to the non-metallic fuse head shell, so that when the non-metallic fuse head shell hits the target, the second electrode is squeezed to contact the first electrode.

[0093] In the present embodiment, the second electrode in the micro trigger switch is arranged on the side close to the non-metallic fuse head shell, so that when the non-metallic fuse head shell hits the target, the non-metallic fuse head shell is affected by the interaction force, squeezing the second electrode to contact the first electrode, thereby realizing the conversion of the switch control on and off state.

[0094] The fuze head structure provided by the embodiment of the utility model comprises a non-metallic fuze head shell and a micro-trigger switch as described above, wherein the second electrode in the micro-trigger switch is arranged on a side close to the non-metallic fuze head shell, so that when the non-metallic fuze head shell hits a target, the second electrode is squeezed to contact the first electrode. The micro-trigger switch comprises at least a circuit board, a first electrode and a second electrode, the first electrode is conductively connected to the first electrode lead portion in the circuit board, the second electrode is conductively connected to the second electrode lead portion in the circuit board, the second electrode is arranged on a side of the first electrode close to the fuze head shell, an insulating isolation structure is arranged between the first electrode and the second electrode, so that the first electrode and the second electrode are isolated, the second electrode at least blocks part of the first surface of the first electrode, and at most blocks part of the surface of the circuit board close to the fuze head shell, so that when the fuze head shell hits a target, the second electrode is squeezed to contact the first electrode, and the first surface is the surface of the first electrode close to the fuze head shell. The utility model achieves control by having the second electrode at least block a portion of the first surface of the first electrode, and at most block a portion of the surface of the circuit board close to the fuse head shell, so as to ensure that the second electrode is squeezed into contact with the first electrode when the fuse head shell hits the target, while reducing the setting area of ​​the second electrode to avoid adverse effects on the reception and transmission of radio waves.

[0095] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0096] It should also be noted that, in this article, relationships such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants are intended to cover non-exclusive inclusions.

[0097] The above is a detailed introduction to a micro trigger switch and a fuse head structure provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the structure and core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A miniature trigger switch, characterized in that: include: A circuit board, a first electrode and a second electrode; The first electrode is conductively connected to a first electrode lead portion in the circuit board, and the second electrode is conductively connected to a second electrode lead portion in the circuit board; The second electrode is arranged on a side of the first electrode close to the fuse head shell, and an insulating isolation structure is arranged between the first electrode and the second electrode to isolate the first electrode from the second electrode; The second electrode at least blocks part of the first surface of the first electrode, and at most blocks part of the surface of the circuit board that is close to the fuze head shell, so that when the fuze head shell hits the target, the second electrode is squeezed into contact with the first electrode; the first surface is the surface of the first electrode that is close to the fuze head shell.

2. The micro trigger switch according to claim 1, characterized in that: The second electrode is a bowl-shaped electrode structure.

3. The micro trigger switch according to claim 1, characterized in that: The second electrode covers the entire first surface of the first electrode.

4. The micro trigger switch according to claim 3, characterized in that: The second electrode is welded on the surface of the circuit board along the circumferential direction, and the second electrode is conductively connected to the second electrode lead portion in the circuit board.

5. The micro trigger switch according to claim 4, characterized in that: A conductive layer is disposed in the area where the circuit board is welded to the second electrode, so that the second electrode lead portion is conductively connected to the second electrode through the conductive layer.

6. The micro trigger switch according to claim 3, characterized in that: The first electrode is a columnar electrode structure; The first electrode is embedded in the circuit board.

7. The micro trigger switch according to claim 6, characterized in that: The insulating isolation structure is circumferentially arranged on the side of the first electrode, wrapping a portion of the first electrode, and the outer side of the insulating isolation structure is in contact with the second electrode; The insulating isolation structure is connected to the surface of the circuit board facing the fuze head shell.

8. The micro trigger switch according to claim 1, characterized in that: The circuit board is provided with a first conductive opening connected to a first conductive wire and a second conductive opening connected to a second conductive wire; The first wire is conductively connected to the first electrode lead portion to conductively lead out the first electrode; The second wire is conductively connected to the second electrode lead portion to conductively lead out the second electrode.

9. The micro trigger switch according to claim 1, characterized in that: The circuit board is provided with a mounting through hole connected to the outside.

10. A fuze head structure, characterized in that: include: A non-metallic fuse head housing, and a miniature trigger switch as claimed in any one of claims 1 to 9; The second electrode in the micro trigger switch is arranged on a side close to the non-metallic fuse head shell, so that when the non-metallic fuse head shell hits a target, the second electrode is squeezed to contact the first electrode.

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