Suspension cable type bidirectional acceleration switch
Through the design of suspended cable acceleration switches, the two-way acceleration detection is achieved using suspended wires and spring contacts, which solves the problems of complex structure and high cost in the prior art, and realizes low-cost bidirectional acceleration detection.
Patent Information
- Application Number
- CN202422394719.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing acceleration switches are complex in low-cost large-scale consumer application scenarios and are expensive, and cannot meet performance requirements.
The suspension structure is adopted, and the mass is fixed by two suspended wires. The mass moves in the acceleration direction inversely. The spring contacts are used to achieve on-off state changes, and bidirectional acceleration detection is achieved.
It has a simple structure and low cost, suitable for large-scale production, and can realize two-way acceleration detection to meet the needs of low-cost applications.
Smart Images
Figure CN223206177U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a suspension-type bidirectional acceleration switch, belonging to the technical field of sensors. Background Art
[0002] With the rapid development of modern industry and technology, the demand for precision control and automation is growing. Accelerometers are key components in many automated control systems, and their performance directly impacts the system's response speed and stability. However, existing accelerometers have numerous limitations, such as these that restrict their widespread, low-cost application.
[0003] Currently, accelerometer switches are mainly used in machinery, electronics, automobiles, military, aerospace and other fields. The technical requirements for accelerometer switches are high, resulting in complex structures, complex manufacturing processes, large sizes, and high costs. They 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. Utility Model Content
[0005] The utility model aims to provide a suspension-type bidirectional acceleration switch, which can realize bidirectional acceleration switch control and has a simple structure and low processing cost.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A suspension-type bidirectional acceleration switch comprises a housing and a mass; a spring contact is provided within the housing, and the spring contact extends outside the housing via a lead wire; the mass is fixed within the housing using two sets of suspension wires, which secure the two ends of the mass to the two inner end faces of the housing; after the suspension wires are broken by acceleration, the mass moves in the opposite direction of the acceleration, and the contact state between the mass and the spring contact changes, thereby changing the on-off state of the switch; the mass is a conductor.
[0008] Further improvements to this technical solution are as follows: the acceleration switch is normally open; two groups of four spring contacts are provided; the two groups of spring contacts are located at both ends of the housing; under normal conditions, the mass block and the two groups of spring contacts are in a non-contact state; after the suspension wire is broken by acceleration, the mass block moves in the opposite direction of the acceleration, and the mass block contacts one of the groups of spring contacts.
[0009] Further improvements to this technical solution are as follows: the acceleration switch is normally closed; two groups of four spring contacts are provided; the two groups of spring contacts are located at both ends of the housing; under normal conditions, the mass block and the two groups of spring contacts are in contact; after the suspension wire is broken by acceleration, the mass block moves in the opposite direction of the acceleration, and the state between the mass block and one of the groups of spring contacts becomes non-contact.
[0010] Further improvements to the present technical solution are as follows: the acceleration switch is normally open; two groups of four spring contacts are provided; one of the two spring contacts in the same group is a spring contact and the other is an elastic lead wire, and the spring contacts and elastic lead wires in the same group are respectively provided at two ends of the housing; the elastic lead wires are fixedly connected to the mass block; in a normal state, the mass block and the two groups of spring contacts are in a non-contact state; after the suspension wire is broken by acceleration, the mass block moves in the opposite direction of the acceleration direction, the mass block contacts one of the groups of spring contacts and forms a path with the elastic lead wires.
[0011] A further improvement of the technical solution is that the two spring contacts in the same group are respectively located on the inner side walls of the housing and are arranged opposite to each other.
[0012] A further improvement of the technical solution is that: of the two spring contacts in the same group, one spring contact is located on the inner side wall of the shell, and the other spring contact is located on the inner end side of the shell.
[0013] Due to the adoption of the above technical solution, the technical effects achieved by the utility model are as follows:
[0014] This utility model uses two suspension wires to position and secure a mass within a housing. The mass can move in two opposite directions, enabling bidirectional acceleration detection. Spring contacts are located within the housing to control the mass's on / off state. When the acceleration exceeds a threshold, the suspension wires of the acceleration switch are broken, causing the mass to move and change its contact state with the spring contacts, thus enabling on / off control of the acceleration switch.
[0015] The mass block of this utility model is fixed with two suspension wires, one at each end of the mass block. This acceleration switch can detect acceleration in two opposite directions. By adjusting the relative position of the mass block and the spring contact, it can be configured in either a normally open or normally closed mode, providing users with a variety of options.
[0016] The cable-suspended bidirectional acceleration switch of the utility model has a simple structure, uses readily available original parts, and has a simple production process, is easy to process and manufacture, has low overall production cost and low use cost, and is suitable for large-scale applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of Example 1 of the utility model;
[0018] Figure 2 This is a schematic diagram of Example 2 of the present utility model;
[0019] Figure 3 This is a schematic diagram of Example 3 of the present utility model;
[0020] Figure 4 This is a schematic diagram of another arrangement of the spring contacts of the utility model;
[0021] Among them, 1. shell, 2. mass block, 3. spring contact, 4. suspension wire, 5. elastic lead wire, 6. lead wire, 7. cover plate. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described 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", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 a limitation on the present invention.
[0024] The utility model is a suspension-type bidirectional acceleration switch. The acceleration switch fixes two ends of a mass block through a suspension line and can realize acceleration detection in two directions.
[0025] like Figure 1-Figure 4 As shown, the accelerometer switch includes a housing 1 and a mass 2. The interior of the housing 1 is hollow, and the mass 2 is suspended and fixed within the housing 1 by two sets of suspension wires. Both ends of the housing 1 are sealed with cover plates 7. The mass 2 is a conductor. The housing 1 is typically a cylindrical structure, such as a circular cylinder or a rectangular column.
[0026] A plurality of spring contacts 3 are provided in the housing 1. The spring contacts 3 are made of spring sheets and conductive materials. The spring contacts 3 are extended externally using lead wires 6. The lead wires 6 are wires that extend outside the housing 1 and can be connected to circuits.
[0027] This acceleration switch secures a mass 2 within a housing 1 using two sets of suspension wires 4, with suspension wires 4 provided at both ends of the mass 2. The two sets of suspension wires 4 secure the ends of the mass 2 to the inner end faces of the housing 1. At the start of acceleration, due to inertia, the mass 2 tends to move in the opposite direction of acceleration, subjecting the suspension wires 4 to tension. As the acceleration gradually increases, the tension on the suspension wires 4 gradually increases. When the acceleration reaches a threshold, the suspension wires 4 break. After the suspension wires 4 break, the mass 2 moves in the opposite direction of the acceleration, until the contact state between the mass 2 and the spring contact 3 changes, causing the switch to switch on and off. Because the suspension wires 4 securely connect both ends of the mass 2, which are flexible and can be broken, the acceleration switch can detect the mass 2 when it accelerates in either direction.
[0028] In a specific implementation, the acceleration switch can be set to a normally open type or a normally closed type. The following is an illustration using a specific embodiment: Example
[0029] The acceleration switch is normally open. Figure 1 As shown, two groups of four spring contacts 3 are provided. The two groups of spring contacts 3 are located at opposite ends of the housing 1. The two ends of the mass 2 are fixed to the housing 1 using suspension wires 4. Under normal conditions, the mass 2 and both groups of spring contacts 3 are in a non-contact state, and both groups of spring contacts 3 are in an open state. When acceleration occurs in a certain direction, at the beginning of the acceleration, due to inertia, the mass 2 tends to move in the opposite direction of the acceleration, and the suspension wires 4 are subjected to tension. As the acceleration gradually increases, the tension on the suspension wires 4 gradually increases. When the acceleration reaches a threshold, the suspension wires 4 are broken. After the suspension wires 4 are broken, the mass 2 moves in the opposite direction of the acceleration until it contacts one of the groups of spring contacts 3. At this point, the group of spring contacts 3 is closed, and its on-off state changes. Example
[0030] The acceleration switch is normally closed. Figure 2As shown, two groups of four spring contacts 3 are provided. The two groups of spring contacts 3 are located at either end of the housing 1. The mass 2 is secured to the housing 1 at both ends using suspension wires 4. Under normal conditions, the mass 2 is in contact with both groups of spring contacts 3, and both groups are closed. When acceleration occurs in a certain direction, at the beginning of the acceleration, inertia causes the mass 2 to move in the opposite direction of the acceleration, subjecting the suspension wires 4 to tension. As the acceleration gradually increases, the tension on the suspension wires 4 gradually increases. When the acceleration reaches a threshold, the suspension wires 4 break. After the suspension wires 4 break, the mass 2 moves in the opposite direction of the acceleration, moving until it is no longer in contact with one of the groups of spring contacts 3. At this point, the group of spring contacts 3 is disconnected, and its on / off state changes. The initial contact between the mass and the spring contacts is achieved by adjusting the position of the spring contacts. Example
[0031] The acceleration switch is normally open. Figure 3 As shown, there are two groups of four spring contacts 3. In this structure, one of the two spring contacts in a group is a spring contact 3, and the other is an elastic lead wire 5. The spring contacts 3 and elastic lead wire 5 of the same group are located at opposite ends of the housing 1. The two elastic lead wires 5 are connected to the mass 2 at both ends. Under normal conditions, the mass 2 and both groups of spring contacts 3 are in a non-contact state. When acceleration occurs in a certain direction, at the beginning of the acceleration, inertia causes the mass 2 to move in the opposite direction of the acceleration, subjecting the suspension wire 4 to tension. As the acceleration gradually increases, the tension on the suspension wire 4 gradually increases. When the acceleration reaches a threshold, the suspension wire 4 breaks. After the suspension wire 4 breaks, the mass 2 moves in the opposite direction of the acceleration, until it contacts one of the spring contacts 3 and forms a path with the elastic lead wire 5. At this point, the group of spring contacts 3 and the elastic lead wire 5 is in a closed state, and their on-off state changes.
[0032] In this technical solution, spring contacts are used as switch contacts, and two matching spring contacts 3 are set in the same group. Specifically, the two spring contacts in the same group are usually set on the inner wall of the housing 1 and are arranged horizontally opposite to each other, such as Figure 1-Figure 3 Alternatively, the two spring contacts 3 of the same group can be set to a non-horizontal corresponding state. In this case, one of the spring contacts 3 is located on the inner side wall of the housing 1, and the other spring contact 3 is located on the inner end side of the housing 1, as shown in FIG. Figure 4 The above two configurations of the spring contacts can both ensure the coordination between the mass block and the spring contacts.
[0033] The accelerometer's suspension wire breaks during use, making it a disposable component. The force required to break the wire defines the activation threshold of the accelerometer. This threshold can be adjusted by selecting different suspension wires. This accelerometer is used in the consumer market and has relatively low precision, but it is low-cost and suitable for large-scale production and application.
[0034] This utility model uses two suspension wires to position and secure a mass within a housing, allowing it to move in two opposite directions. Furthermore, spring contacts are provided within the housing to control the mass's on / off state. When the acceleration exceeds a threshold, the suspension wires of the acceleration switch are broken, causing the mass to move and change its contact state with the spring contacts, thus enabling on / off control of the acceleration switch. This acceleration switch enables bidirectional acceleration detection.
[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A suspension-type bidirectional acceleration switch, characterized in that: The invention comprises a shell (1) and a mass block (2); a spring contact (3) is arranged in the shell (1), and the spring contact (3) is extended to the outside of the shell (1) by using a lead wire (6); the mass block (2) is arranged in the shell (1) by using two sets of suspension wires (4), and the suspension wires (4) fix the two ends of the mass block (2) to the two inner end faces of the shell (1); after the suspension wires are broken by acceleration, the mass block (2) moves in the opposite direction of the acceleration direction, and the contact state between the mass block (2) and the spring contact (3) changes, thereby realizing the change of the on-off state of the switch; the mass block (2) is a conductor.
2. The cable-suspended bidirectional acceleration switch according to claim 1, characterized in that: Two groups of four spring contacts (3) are provided; the two groups of spring contacts (3) are respectively located at two ends of the housing (1); in a normal state, the mass block (2) and the two groups of spring contacts (3) are both in a non-contact state; after the suspension wire is broken by acceleration, the mass block (2) moves in the opposite direction of the acceleration direction, and the mass block (2) contacts one of the groups of spring contacts (3).
3. The cable-suspended bidirectional acceleration switch according to claim 2, characterized in that: The acceleration switch is a normally closed type; after the suspension wire is broken by acceleration, the mass block (2) moves in the opposite direction of the acceleration direction, and the state of the mass block (2) and one set of spring contacts (3) becomes a non-contact state.
4. The cable-suspended bidirectional acceleration switch according to claim 2, characterized in that: The acceleration switch is of a normally open type; one of the two spring contacts in the same group is a spring contact (3) and the other is an elastic lead wire (5), and the spring contacts and the elastic lead wire (5) in the same group are respectively arranged at two ends in the housing (1); the elastic lead wire (5) is fixedly connected to the mass block (2); after the suspension wire is broken by acceleration, the mass block (2) moves in the opposite direction of the acceleration direction, and the mass block (2) contacts one of the spring contacts (3) and forms a path with the elastic lead wire (5).
5. The cable-suspended bidirectional acceleration switch according to any one of claims 1 to 3, characterized in that: Two spring contacts (3) in the same group are respectively located on the inner side walls of the housing (1) and are arranged opposite to each other.
6. The cable-suspended bidirectional acceleration switch according to any one of claims 1 to 3, characterized in that: Two spring contacts (3) of the same group are matched, wherein one spring contact (3) is located on the inner side wall of the housing (1), and the other spring contact (3) is located on the inner end side of the housing (1).