CN115763150A

CN115763150A - High-threshold inertial switch capable of providing impact signal

Info

Publication number: CN115763150A
Application number: CN202211446167.1A
Authority: CN
Inventors: 杨彦豪; 李振华; 赵忠杰
Original assignee: Hubei Sanjiang Aerospace Honglin Exploration and Control Co Ltd
Current assignee: Hubei Sanjiang Aerospace Honglin Exploration and Control Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-07

Abstract

The invention discloses an inertial switch capable of providing an impact signal and with a high threshold value, which comprises a shell, wherein a steel ball, a spring, a core pole, an insulating seat and a capacitor are sequentially arranged in the shell along the axis direction; the steel ball and the spring form an overload sensitive device of the switch, when the switch senses the impact overload of the target hitting on the bullet, the steel ball takes the inner wall of the outer shell as a guide, moves along the axial direction and compresses the spring, and is communicated with the core pole to realize the closing function of the switch, when the impact overload of the target hitting on the bullet disappears, namely the bullet goes out of the target, the steel ball takes the inner wall of the outer shell as a guide, the resistance of the spring enables the steel ball to move along the axial direction in the opposite direction, and is separated from the core pole to realize the opening function of the switch. The utility model provides a can provide impact signal high threshold value inertia switch, structural design is compact, and space utilization is reasonable, and closed overload threshold value is high, and switch closed contact adopts the rigid contact to form the electric capacity discharge circuit that charges after the closure, can guarantee that the switch is closed the back controller correctly discerns into the target, go out the target information under the target environment is worn to the guided missile.

Description

High-threshold inertial switch capable of providing impact signal

Technical Field

The invention relates to the technical field of switches, in particular to an inertial switch capable of providing impact signals and high in threshold value.

Background

The inertial switch is a switch which is closed by using the mass block to sense the acceleration or deceleration inertial force of a moving body, thereby realizing the on-off control function of a circuit. The inertial switch has wide requirements in the technical field of missiles and is an important part for sensing environmental force change in the launching, flying and target hitting processes of the missiles. When the closing threshold of the overload switch is higher, a general inertia switch cannot be closed stably under the influence of through target overload after being switched on a circuit, so that the closing time is possibly shorter than the acquisition time of a sensor, and a missing recording layer is caused; when the closing threshold of the overload switch is low, the mass blocks of the inertial switch cannot be reliably separated after the targets are discharged, so that the space flight between the targets cannot be identified, and a missing recording layer is caused; in the target penetrating process, the mass body is in a continuous oscillation state under various interference superposition states and cannot provide a stable closing signal, so that the switch provides a capacitor charging and discharging process for the controller, and the layer counting function of the switch is realized.

Disclosure of Invention

The invention provides an inertial switch capable of providing an impact signal high threshold value, which has the advantages of high closing overload threshold value, capability of providing a stable closing signal after closing, and the like.

In order to realize the purpose, the invention adopts the following technical scheme:

an inertial switch capable of providing impact signals and with high threshold comprises a shell, wherein a steel ball, a spring, a core pole, an insulating seat and a capacitor are sequentially arranged in the shell along the axis direction;

the steel ball and the spring form an overload sensitive device of the switch, when the switch senses the impact overload of the target hitting on the bullet, the steel ball takes the inner wall of the outer shell as a guide, moves along the axial direction and compresses the spring, and is communicated with the core pole to realize the closing function of the switch, when the impact overload of the target hitting on the bullet disappears, namely the bullet goes out of the target, the steel ball takes the inner wall of the outer shell as a guide, the resistance of the spring enables the steel ball to move along the axial direction in the opposite direction, and is separated from the core pole to realize the opening function of the switch.

Preferably, the housing, the spring and the steel ball are in a conducting state to form one pole of the switch, the core pole forms the other pole of the switch, and the insulating seat insulates and isolates the core pole from the housing.

Preferably, an insulating case is mounted on the outer side of the housing.

Preferably, the center of the upper surface of the shell is provided with a round hole, a step is arranged inside the round hole, the steel ball and the spring are sequentially arranged in the cavity of the shell along the axis, and the insulating seat is arranged on the step of the cavity.

Preferably, an insulating pad is arranged below the insulating seat, the insulating pad is sleeved outside the core pole, and the lower part of the insulating pad is encapsulated to seal the whole switch into a whole.

Preferably, a gasket is arranged outside the insulating seat and the insulating pad.

Preferably, the insulation seat is internally provided with a positioning slot, the core pole is arranged at the positioning slot of the insulation seat, the core pole is connected with one pole of the capacitor, and the other pole of the capacitor is connected with the shell.

Due to the structure, the invention has the advantages that:

the utility model provides a can provide impact signal high threshold value inertia switch, structural design is compact, and space utilization is reasonable, and closed overload threshold value is high, and switch closed contact adopts the rigid contact to form the electric capacity discharge circuit that charges after the closure, can guarantee that the switch is closed the back controller correctly discerns into the target, go out the target information under the target environment is worn to the guided missile.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.

FIG. 1 is a schematic view of the disconnected state structure of the present invention;

FIG. 2 is a schematic structural view of the present invention in a closed state;

wherein: 1-shell, 2-gasket, 3-insulating seat, 4-core pole, 5-spring, 6-insulating pad, 7-insulating shell, 8-steel ball and 9-capacitor.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the present embodiment provides an inertial switch capable of providing a high threshold value of an impact signal, which includes a housing 1, a washer 2, an insulating base 3, a core 4, a spring 5, an insulating pad 6, an insulating shell 7, a steel ball 8, and a capacitor 9.

The utility model discloses a switch, including insulating shell 7, insulating base 3, packing ring 2, insulating pad 6, electric capacity 9, round hole has been seted up at 1 upper surface center along the axis direction in the insulating shell, spring 5, core 4, insulating base 3, packing ring 2, insulating pad 6, electric capacity 9, the round hole has been seted up at 1 upper surface center of shell, inside is equipped with the step, steel ball 8, spring 5 installs to 1 cavity of shell along the axis position, packing ring 2, insulating base 3 installs to 1 inner chamber step position of shell, packing ring 2 locates insulating base 3 and insulating pad 6 outside, insulating pad 6 is located insulating base 3 below, be equipped with the location fluting in the insulating base 3, core 4 is installed to insulating base 3 location fluting department, core 4 is connected with electric capacity 9 one utmost point, another utmost point of electric capacity is connected with shell 1, the embedment becomes whole with whole switch closure below insulating pad 6. The shell 1, the spring 5 and the steel ball 8 are in a conducting state to form one pole of the switch, the core pole 4 forms the other pole of the switch, and the insulating seat 3 insulates and isolates the core pole 4 from the shell 1.

The working principle of the structure is as follows:

the steel ball 8 and the spring 5 form an overload sensitive device of the switch, when the switch senses impact overload of a target hitting on a bullet, the steel ball 8 moves along the axis direction by taking the inner wall of the shell 1 as a guide, the spring 5 is compressed and is communicated with the core pole 4, the closing function of the switch is realized, when the impact overload of the target hitting on the bullet disappears, namely a bullet goes out of the target, the steel ball 8 takes the inner wall of the shell 1 as a guide, the steel ball 8 moves along the axis direction in the opposite direction by the resistance of the spring 5 and is separated from the core pole 4, the opening function of the switch is realized, and the switch is closed to be opened to finish the primary layer counting function.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An inertial switch capable of providing a high threshold impulse signal, comprising: the device comprises a shell (1), wherein a steel ball (8), a spring (5), a core electrode (4), an insulating seat (3) and a capacitor (9) are sequentially arranged in the shell along the axis direction;

the steel ball (8) and the spring (5) form an overload sensitive device of the switch, when the switch senses that the switch is overloaded due to impact of a target hitting on a bullet, the steel ball (8) takes the inner wall of the outer shell (1) as a guide, moves along the axial direction, compresses the spring (5), and is conducted with the core pole (4), so that the closing function of the switch is realized; when the impact overload of the target on the bullet disappears, the steel ball (8) takes the inner wall of the outer shell (1) as the guide, and the steel ball (8) moves along the axial direction in the opposite direction by the resistance of the spring (5) and is separated from the core pole (4), so that the disconnection function of the switch is realized.

2. The inertial switch of claim 1, wherein the high-threshold inertial switch is capable of providing a surge signal, and wherein: the shell (1), the spring (5) and the steel ball (8) are in a conducting state to form one pole of the switch, the core pole (4) forms the other pole of the switch, and the insulating seat (3) insulates and isolates the core pole (4) from the shell (1).

3. The inertial switch of claim 1, wherein the high-threshold inertial switch is capable of providing a surge signal, and wherein: an insulating shell (7) is installed on the outer side of the shell (1).

4. The inertial switch of claim 1, wherein the high-threshold inertial switch is capable of providing a surge signal, and wherein: the round hole has been seted up at shell (1) upper surface center, and inside is equipped with the step, and steel ball (8), spring (5) are installed in shell (1) cavity along the axis position in proper order, and insulating seat (3) are installed in (1) inner chamber step position.

5. The inertial switch of claim 1, wherein the high-threshold inertial switch is capable of providing a surge signal, and wherein: an insulating pad (6) is arranged below the insulating seat (3), the insulating pad (6) is sleeved on the outer side of the core pole (4), and the lower part of the insulating pad (6) is encapsulated to seal the whole switch into a whole.

6. An inertial switch capable of providing a high-threshold surge signal according to claim 5, wherein: and gaskets (2) are arranged on the outer sides of the insulating seat (3) and the insulating pad (6).

7. The inertial switch of claim 1, wherein the high-threshold inertial switch is capable of providing a surge signal, and wherein: the capacitor is characterized in that a positioning groove is formed in the insulating base (3), the core electrode (4) is installed at the positioning groove of the insulating base (3), the core electrode (4) is connected with one pole of the capacitor (9), and the other pole of the capacitor (9) is connected with the shell (1).