Suspension cable type three-dimensional universal acceleration normally open switch
Through the suspended three-dimensional universal acceleration normally open switch, the conductor core contacts the shell under acceleration using suspended wire, solving the problem of limited application of existing acceleration switches in low-cost fields, and achieving efficient acceleration detection and low-cost Cost production.
Patent Information
- Application Number
- CN202411378928.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2024-12-27
AI Technical Summary
Existing acceleration switches are limited in low-cost large-scale consumer products. Due to the complex structure, complex manufacturing process, large volume, high cost, and traditional mechanical or electromagnetic principles cannot meet performance requirements, they lack suitable three-dimensional multiples. Response to acceleration switch solution.
It adopts a suspended three-dimensional universal acceleration normally open switch, and is distributed and sets through six suspended wires according to the three-dimensional coordinate system. The acceleration is used to move the conductor core under the action of inertia and contact the conductor shell to form a path state, with a simple structure and easy processing. Suitable for single use.
It realizes efficient acceleration detection under low-cost conditions, is suitable for normally open switch applications, has good use effect and low processing costs, and is suitable for large-scale consumer products.
Smart Images
Figure CN119208077A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a suspended cable type three-dimensional universal acceleration normally open switch, belonging to the technical field of acceleration switches. Background Art
[0002] With the rapid development of modern industry and technology, the demand for precision control and automation is growing. In many automated control systems, the accelerometer switch is a key component whose performance directly affects the response speed and stability of the system. However, there are many limitations in the existing accelerometer switches, which limit their large-scale application in low-cost fields.
[0003] Currently, acceleration switches are mainly used in the fields of machinery, electronics, automobiles, military, aerospace, etc., which have high technical requirements for acceleration switches, resulting in complex structures, complex manufacturing processes, large sizes, high costs, etc., which are not suitable for use in low-cost, large-scale manufactured consumer products.
[0004] Most of the existing acceleration switches on the market are based on traditional mechanical or electromagnetic principles, or on MEMS with complex processes. These principles cannot meet the performance requirements in low-cost large-scale consumer application scenarios and are not suitable for large-scale consumer applications.
[0005] For acceleration switches, in some occasions, only a one-way switch is sufficient, while in other occasions, a three-dimensional multi-directional acceleration switch is required. Summary of the invention
[0006] The purpose of the present invention is to provide a cable-suspended three-dimensional universal acceleration normally open switch.
[0007] In order to achieve the above object, the technical solution adopted by the present invention is:
[0008] A cable-suspended three-dimensional universal acceleration normally open switch comprises a conductor shell and a conductor core suspended in the conductor shell by suspension wires; six suspension wires are arranged and distributed in a three-dimensional coordinate system; when the acceleration increases to the point where the suspension wires are broken, the conductor core can move, and the conductor shell and the conductor core can be adsorbed together after contact, and the switch state changes to a pass state.
[0009] A further improvement of the technical solution of the present invention is as follows: an insulating through hole is provided on the conductor housing, and the suspension wire is led outward and fixed through the insulating through hole; the six suspension wires are made of conductor material; the outer ends of the six suspension wires are connected in sequence through a junction wire and an external lead wire is provided, and an external lead wire is also provided on the conductor housing, and the two external lead wires are used in pairs.
[0010] A further improvement of the technical solution of the present invention is as follows: the six suspension wires are made of insulating material; an insulating through hole is provided on the conductor shell, and an elastic connecting wire is additionally provided as a conductor; one end of the elastic connecting wire is connected to the conductor core, and the other end extends outward from the insulating through hole and is connected to the external lead; an external lead is also provided on the conductor shell, and the two external leads are used in pairs.
[0011] A further improvement of the technical solution of the present invention is that the suspension wire has a certain elastic deformation, the maximum elastic deformation is L, wherein (√2-1)×h<L<h, h=shell inner wall radius-core outer wall radius=core moving distance.
[0012] A further improvement of the technical solution of the present invention is that the conductor core is made of magnetic material, and the conductor shell is made of ferromagnetic material.
[0013] A further improvement of the technical solution of the present invention is that the inner core of the conductor is spherical.
[0014] A further improvement of the technical solution of the present invention is that the conductor core is made of ferromagnetic material, and the conductor shell is made of magnetic material.
[0015] Due to the adoption of the above technical solution, the technical effects achieved by the present invention are as follows:
[0016] The acceleration switch of the present invention is a normally open switch, and uses six suspension wires to fix the conductor core. The six suspension wires are distributed and arranged in a three-dimensional coordinate system, and the conductor core is fixed. When acceleration is generated, under the action of inertia, the suspension wires form a pulling force on the conductor core. When the acceleration gradually increases to a certain value, the suspension wires are broken, and the conductor core moves by breaking the suspension wires, and then contacts and adsorbs the conductor shell to form a switch passage state. The conductor core has a high degree of freedom of movement when moving, so that acceleration in all directions can be detected.
[0017] The conductor core used in the acceleration switch of the present invention is spherical in shape, and the conductor shell is hollow in shape, so that the two can have a good contact state at any position.
[0018] The acceleration switch of the present invention is a disposable switch. Since it is completely formed by mechanical structure using parts and has a relatively simple structure, it has the advantages of easy processing and low processing cost. The acceleration switch is suitable for use in occasions where a normally open switch is required, and can achieve good use effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic diagram of Embodiment 1 of the present invention;
[0020] Figure 2 is a schematic diagram of Embodiment 2 of the present invention;
[0021] Among them, 1. conductor shell, 2. conductor core, 3. suspension wire, 4. insulating through hole, 5. external lead wire, 6. elastic connecting wire, 7. connecting wire. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0024] The present invention is a cable-suspended three-dimensional universal acceleration normally open switch, in which a conductor core is suspended and fixed by a suspension wire, and the suspension wires are distributed and arranged in a three-dimensional coordinate system, and the conductor core is suspended and fixed. When acceleration is generated in a certain direction, and when the acceleration increases, under the action of inertia, the tension formed by the conductor core and the suspension wire breaks the suspension wire, and the conductor core can move, thereby realizing the change of the switch state. The switch is a normally open switch, and the switch is in an open circuit state when there is no acceleration in the initial state; when the suspension wire is broken and the switch is triggered, the switch changes from an open circuit state to a closed circuit state.
[0025] like Figure 1 As shown, the switch mainly includes a conductor housing 1 and a conductor core 2. The conductor core 2 is located inside the conductor housing 1, and the conductor core 2 is suspended in the conductor housing 1 by means of suspension wires 3. Specifically, six suspension wires 3 are provided, and are distributed in a three-dimensional coordinate system, that is, in an XYZ three-axis coordinate system, so that the conductor core 2 can be stably fixed.
[0026] After the acceleration is generated, and the acceleration increases to the point where the force generated can break the suspension wire 3, the suspension wire 3 is disconnected, and the conductor core 2 is in an unstable state. The conductor core 2 moves until it contacts the inner wall of the conductor shell 1, and the conductor shell 1 and the conductor core 2 can be adsorbed together after contact, thereby changing the switch state to a path state. The acceleration switch needs to be able to form a path, and the acceleration switch is a normally open switch. There are mainly two settings.
[0027] Example 1
[0028] like Figure 1As shown, in this embodiment, the six suspension wires 3 are made of a conductor material. The six suspension wires 3 are distributed in a three-dimensional coordinate system, that is, in an XYZ three-axis coordinate system, so as to stably fix the conductor core 2. The contact between the conductor core 2 and the conductor shell 1 forms a passage state.
[0029] An insulating through hole 4 is provided on the conductor housing 1, and at least six insulating through holes 4 need to be provided. Then, the six suspension wires 3 are respectively passed through the corresponding insulating through holes 4 and led outwardly, and at the same time, the suspension wires 3 need to be fixed in the insulating through holes 4. The six suspension wires 3 are made of conductive materials; the outer ends of the six suspension wires 3 are connected to the junction wire 7 in sequence, and an external lead wire 5 is provided. At the same time, an external lead wire 5 is also provided on the conductor housing 1, and the two external lead wires 5 are wires and are used in pairs, and are connected to the external circuit through the two external lead wires 5, so as to realize circuit control.
[0030] When acceleration occurs in a certain direction, the conductor core 2, due to inertia, moves in the opposite direction to the acceleration and then stretches the suspension wire 3, causing the suspension wire 3 to be subjected to tension. As the acceleration gradually increases, the tension on the suspension wire 3 gradually increases. When the acceleration increases to a certain value, one or two suspension wires 3 will be broken, and the conductor core 2 will move in the opposite direction of the acceleration until it contacts the conductor shell 1. After the conductor core 2 and the conductor shell 1 contact, they will be attracted together. The switch state changes to the on-state state. At this time, the circuit in the on-state state is formed by the outer lead 5 of the conductor material, the suspension wire 3 of the conductor material, the conductor core 2, the conductor shell 1, and the outer lead 5 of another conductor material.
[0031] In use, generally one conductor suspension wire is pulled apart, or in special cases two conductor suspension wires may be pulled apart, which is related to the direction of acceleration. The direction of acceleration may be in the same direction as the XYZ axis represented by the two conductor suspension wires, or it may be in a different direction from the conductor suspension wires. When it is in a different direction from the conductor suspension wires, the component force of the pulling force generated by the acceleration acts on the conductor suspension wires. A special case is that when the direction of acceleration is in the middle of the angle between the two conductor suspension wires, it is easier for the two conductor suspension wires to be pulled apart. And according to the decomposition of force, the acceleration required at this time is the largest, which is the maximum threshold for activating the acceleration switch.
[0032] After the acceleration is generated, the tension on the conductor core is calculated as follows: Where F is the tension on the conductor core, m is the mass of the conductor core, a is the acceleration of the conductor core, and F 导体悬线 is the breaking force of a conductor suspension wire. In the most extreme case, the direction of acceleration is on the bisector of the angle between two conductor suspension wires. The above formula is used to determine the breaking force threshold of the conductor suspension wire, which can also be said to be the maximum excitation threshold of the acceleration switch.
[0033] Example 2
[0034] like Figure 2 As shown, in this embodiment, the six suspension wires 3 are made of insulating material. The six suspension wires 3 are distributed in a three-dimensional coordinate system, that is, in an XYZ three-axis coordinate system, so as to stably fix the conductor core 2. The contact between the conductor core 2 and the conductor shell 1 forms a path state.
[0035] In this embodiment, an additional elastic connection line 6 is provided. The elastic connection line 6 is a conductive wire made of a conductive material. At least one insulating through hole 4 is provided on the conductor housing 1. The insulating through hole 4 is used to fix the elastic connection line 6. The elastic connection line 6 will not affect the movement of the conductor core 2. One end of the elastic connection line 6 is connected to the conductor core 2, and the other end extends outward after passing through the insulating through hole 4 and is connected to the external lead 5. The outer end of the elastic connection line is fixed in the insulating through hole 4. An external lead 5 is also provided on the conductor housing 1. The two external leads 5 are conductive wires and are used in pairs. The two external leads 5 are connected to the external circuit to achieve circuit control.
[0036] When acceleration occurs in a certain direction, the conductor core 2, due to inertia, moves in the opposite direction to the acceleration and then stretches the suspension wire 3, causing the suspension wire 3 to be subjected to tension. As the acceleration gradually increases, the tension on the suspension wire 3 gradually increases. When the acceleration increases to a certain value, one or two suspension wires 3 will be broken, and the conductor core 2 will move in the opposite direction of the acceleration until it contacts the conductor shell 1. After the conductor core 2 and the conductor shell 1 contact, they will be attracted together. The switch state changes to the on-state state. At this time, the circuit in the on-state state is formed by the outer lead 5 of the conductor material, the elastic connecting wire 6 of the conductor material, the conductor core 2, the conductor shell 1 and the outer lead 5 of another conductor material.
[0037] In use, usually one suspension wire is broken, or two suspension wires may be broken in special cases. This is related to the direction of acceleration, which may be in the same direction as the XYZ axis represented by the two suspension wires, or in a different direction from the suspension wires. When it is in a different direction from the suspension wires, the component force of the pulling force generated by the acceleration acts on the suspension wires. A special case is that when the direction of the acceleration is in the middle of the angle between the two suspension wires, it is easier for the two suspension wires to break. And according to the decomposition of force, the acceleration required at this time is the largest, which is the maximum threshold for activating the acceleration switch.
[0038] After the acceleration is generated, the tension on the conductor core is calculated as follows: Where F is the tension on the conductor core, m is the mass of the conductor core, a is the acceleration of the conductor core, and F 悬线is the breaking force of a suspension wire. In the most extreme case, the direction of acceleration is on the bisector of the angle between two suspension wires. The above formula is used to determine the breaking force threshold of the suspension wire, which can also be said to be the maximum excitation threshold of the acceleration switch.
[0039] The suspension wire 3 used in the switch needs to have a certain elastic deformation to ensure that the conductor core 2 has a sufficient movement distance. The maximum elastic deformation of the suspension wire is L, where: h = shell inner wall radius - core outer wall radius = core movement distance. This is determined by the most extreme case, and it is necessary to ensure that after a suspension wire is broken, the conductor core 2 can still reach the position of contact with the conductor shell 1 under the traction of other suspension wires 3.
[0040] The acceleration switch requires that the conductor core 2 and the conductor shell 1 can be adsorbed together after contact. Specifically, usually, the conductor core 2 is made of a magnetic material, and the conductor shell 1 is made of a ferromagnetic material. Alternatively, the conductor core 2 can be made of a ferromagnetic material, and the conductor shell 1 can be made of a magnetic material.
[0041] The conductor core 2 used in the acceleration switch is preferably spherical in shape, and the conductor shell 1 is preferably hollow in shape, so that the two can have good contact at any position.
[0042] This technical solution uses six suspension wires to fix the conductor core, and the six suspension wires are distributed in a three-dimensional coordinate system. The conductor core is moved by breaking the suspension wires. The conductor core has a high degree of freedom when moving, and can detect acceleration in all directions.
[0043] The acceleration switch uses a suspension wire to fix the conductor core, and the conductor core is moved by breaking the suspension wire, thereby changing the switch state after the conductor core contacts the conductor shell. The acceleration switch is a disposable switch. However, since it is completely formed by mechanical structure with parts and has a relatively simple structure, it has the advantages of easy processing and low processing cost.
[0044] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A cable-suspended three-dimensional universal acceleration normally open switch, characterized in that: The invention comprises a conductor shell (1) and a conductor core (2) suspended and installed in the conductor shell (1) via suspension wires (3); six suspension wires (3) are arranged and distributed in a three-dimensional coordinate system; when the acceleration increases to the point where the suspension wires are broken, the conductor core (2) can move, and the conductor shell (1) and the conductor core (2) can be adsorbed together after contact, and the switch state changes to the on-state.
2. The cable-suspended three-dimensional universal acceleration normally open switch according to claim 1, characterized in that: An insulating through hole (4) is provided on the conductor housing (1), and the suspension wire (3) is led outward through the insulating through hole (4) and fixed; the six suspension wires (3) are made of a conductor material; the outer ends of the six suspension wires (3) are connected in sequence through a junction wire (7) and an external lead wire (5) is provided; an external lead wire (5) is also provided on the conductor housing (1), and the two external lead wires (5) are used in pairs.
3. The cable-suspended three-dimensional universal acceleration normally open switch according to claim 1, characterized in that: The six suspension wires (3) are made of insulating material; an insulating through hole (4) is provided on the conductor shell (1), and an elastic connecting wire (6) is additionally provided as a conductor; one end of the elastic connecting wire (6) is connected to the conductor core (2), and the other end extends outward from the insulating through hole (4) and is connected to an external lead wire (5); an external lead wire (5) is also provided on the conductor shell (1), and the two external lead wires (5) are used in pairs.
4. The cable-suspended three-dimensional universal acceleration normally open switch according to any one of claims 1 to 3, characterized in that: The suspension wire (3) has a certain elastic deformation, and the maximum elastic deformation is L, wherein (√2-1)×h<L<h, h=the inner wall radius of the outer shell-the outer wall radius of the inner core=the moving distance of the inner core.
5. The cable-suspended three-dimensional universal acceleration normally open switch according to any one of claims 1 to 3, characterized in that: The conductor core (2) is made of magnetic material, and the conductor shell (1) is made of ferromagnetic material.
6. The cable-suspended three-dimensional universal acceleration normally open switch according to any one of claims 1 to 3, characterized in that: The conductor core (2) is spherical.
7. The cable-suspended three-dimensional universal acceleration normally open switch according to any one of claims 1 to 3, characterized in that: The conductor core (2) is made of ferromagnetic material, and the conductor shell (1) is made of magnetic material.