Vibration sensor for sensing multidirectional vibration

Abstract

A vibration sensor capable of sensing multidirectional vibration comprises a shell provided with a placing groove, a fixed contact electrode, a vibration contact electrode and a battery cell, wherein the fixed contact electrode and the vibration contact electrode are communicated into the placing groove; the battery cell comprises a fixed electric connection end connected and mounted on the fixed contact electrode, a movable electric connection end suspended above the vibration contact electrode, and an elastic electric connection part which is elastically supported and electrically connected with the fixed electric connection end and the movable electric connection end; the vibration contact electrode is provided with a fixed conductive part which is located in the placing groove and is electrically connected with the vibration contact electrode, and the movable electric connection end is provided with a vibration conductive part which sleeves the outer side of the fixed conductive part and is arranged at an interval with the fixed conductive part. Therefore, when the movable electric connection end vibrates in all directions on the horizontal plane, the movable electric connection end can be conducted with the vibration contact electrode, so that the sensitivity of the vibration sensor is high.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration sensors, in particular to a vibration sensor capable of sensing multi-directional vibrations. Background Art

[0002] Mechanical sensors convert mechanical signals generated by vibration into electrical signals and transmit them to circuits for processing. They are widely used in toys, small appliances and various anti-theft security products.

[0003] Patent application number CN202310516489.7 A novel chip-type vibration sensor includes a shell, a placement groove, and a first electrode and a second electrode leading to the placement groove are provided on the shell, an inner core that can connect the first electrode and the second electrode through vibration is installed in the placement groove, and the inner core is a thin sheet structure and is laid flat in the placement groove; the inner core includes a fixed electrical connection end fixedly connected to the first electrode, a movable electrical connection end spaced apart from the second electrode, and an elastic electrical connection part that elastically supports and electrically connects the fixed electrical connection end and the movable electrical connection end, the elastic electrical connection part includes end connection strips whose two ends are respectively connected to the fixed electrical connection end and the movable electrical connection end, and an elastic support part whose middle part plays an elastic supporting role, and the elastic support part includes a group of longitudinal support strips spaced apart in the longitudinal direction and transverse connection strips staggeredly connected to the longitudinal support strips;

[0004] When the battery cell in the above utility model vibrates, the circuit of the vibration sensor can be turned on only when it moves up and down, front and back, and to the right. When the battery cell vibrates in other directions, the vibration sensor cannot be triggered. The sensitivity of the sensor is relatively low, and vibration sensing has limitations. Summary of the invention

[0005] The utility model aims to solve the problems existing in the above-mentioned prior art and provides a vibration sensor that senses multi-directional vibrations. The movable electrical connection end in the present application can achieve conduction with the vibration contact electrode when vibrating in all directions on the horizontal plane, thereby making the vibration sensor highly sensitive.

[0006] The utility model adopts a technical solution to solve its technical problems: the vibration sensor for sensing multi-directional vibrations comprises a shell with a placement groove, a fixed contact electrode and a vibration contact electrode leading to the placement groove, and a battery cell, the battery cell comprising a fixed electrical connection end connected to the fixed contact electrode, a movable electrical connection end suspended above the vibration contact electrode, and an elastic electrical connection part elastically supporting and electrically connecting the fixed electrical connection end and the movable electrical connection end, the vibration contact electrode is provided with a fixed conductive part located in the placement groove and electrically connected to the vibration contact electrode, and the movable electrical connection end is provided with a vibration conductive part which is sleeved on the outside of the fixed conductive part and spaced from the fixed conductive part.

[0007] Preferably, the fixed conductive part is a cylindrical rod vertically arranged on the vibrating contact electrode, and the vibrating conductive part includes a contact part arranged in the movable electrical connection end and integrated with the movable electrical connection end, and a circular hole corresponding to the outer surface of the cylindrical rod is opened on the contact part, and the fixed conductive part is arranged through the circular hole.

[0008] Preferably, a sealing cover covering the outer side of the placement groove is provided on the shell, and a connecting part extending toward the fixed conductive part and contacting and connecting with the fixed conductive part is provided on the sealing cover, and the sealing cover is electrically connected to the fixed conductive part through the connecting part.

[0009] Preferably, a supporting mounting portion for raising the fixed electrical connection terminal is provided between the fixed contact electrode and the fixed electrical connection terminal.

[0010] Preferably, a mounting hole is provided on the fixed electrical connection end, and a fixing positioning member is provided in the mounting hole and is installed on the supporting mounting portion and fixes the fixed electrical connection end on the supporting mounting portion.

[0011] Preferably, a channel is provided between the fixed electrical connection terminal and the support mounting portion, which can pass through the support mounting portion from the fixed electrical connection terminal to the fixed contact electrode, and a conductive portion connecting the fixed electrical connection terminal and the fixed contact electrode is provided in the channel.

[0012] Preferably, the sealing cover is provided with a surrounding portion extending toward the outside of the shell.

[0013] Preferably, the channel includes channel holes respectively correspondingly opened on the supporting mounting portion and the fixed electrical connection end, and the conductive portion is conductive glue arranged in the channel hole.

[0014] Preferably, an auxiliary sealing portion extending outward is provided on the surrounding portion, and a contact sealing portion fitted with the auxiliary sealing portion is provided on the outer side of the shell.

[0015] The beneficial effect of the utility model is that a fixed conductive part connected to the vibrating contact electrode cell and a vibrating conductive part sleeved on the outside of the fixed conductive part are provided in the utility model, so that when the movable electrical connection end drives the vibrating conductive part to move in various directions on the horizontal plane, it can achieve contact and conduction with the fixed conductive part, thereby realizing multi-directional vibration sensing of the vibration sensor and greatly improving the sensitivity of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 Schematic diagram of the installation of the shell and battery cells.

[0019] Explanation of the accompanying drawings: 1. Shell, 2. Placement groove, 3. Fixed contact electrode, 4. Vibrating contact electrode, 5. Battery cell, 5-1. Fixed electrical connection terminal, 5-2. Movable electrical connection terminal, 5-3. Elastic electrical connection part, 6. Fixed conductive part, 7. Through hole, 8. Sealing cover, 9. Connection part, 10. Support and mounting part, 11. Mounting hole, 12. Fixed positioning piece, 13. Surrounding part, 14. Auxiliary sealing part, 15. Contact sealing part, 16. End connecting strip, 17. Longitudinal supporting strip, 18. Transverse connecting strip, 19. Channel hole. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] See attached Figure 1 and 2 : This embodiment discloses a vibration sensor for sensing multi-directional vibration, including a housing 1 with a placement slot 2, a fixed contact electrode 3 and a vibration contact electrode 4 leading to the placement slot 2, and a battery cell 5; in order to achieve a sealing and dustproof effect of the vibration sensor, in this embodiment, a sealing cover 8 covering the outer side of the placement slot 2 is provided on the housing 1;

[0022] Specifically, Figure 3 As shown, in order to make the vibration sensor work when subjected to vibrations in different directions, that is, to make the battery cell 5 able to achieve touch connection with the vibration contact electrode 4 when subjected to vibrations in different directions, the battery cell 5 in this embodiment is designed and used to include a fixed electrical connection terminal 5-1 connected and mounted on the fixed contact electrode 3, a movable electrical connection terminal 5-2 suspended above the vibration contact electrode 4, and an elastic electrical connection portion 5-3 elastically supporting and electrically connecting the fixed electrical connection terminal 5-1 and the movable electrical connection terminal 5-2; in this embodiment, the two ends of the elastic electrical connection portion 5-3 are respectively electrically connected to the fixed electrical connection terminal 5-1 and the movable electrical connection terminal 5-2 and are integrally arranged; wherein, in this embodiment, the shell 1 senses the vibration and transmits the vibration The electric current is transmitted to the battery cell 5 through the fixed contact electrode 3, so that the elastic electrical connection part 5-3 drives the movable electrical connection end 5-2 to vibrate in the corresponding direction after sensing the vibration in the corresponding direction; specifically, the elastic electrical connection part 5-3 in this embodiment includes an end connection bar 16 connected to the fixed electrical connection end 5-1 and the movable electrical connection end 5-2 at both ends, and an elastic support part with an elastic support function in the middle part, and the elastic support part includes a group of longitudinal support bars 17 arranged at intervals in the longitudinal direction and transverse connection bars 18 staggeredly connected to the longitudinal support bars 17, and the length of the longitudinal support bars 17 is greater than the length of the end connection bars 16 and the transverse connection bars 18; and the elastic electrical connection part 5-3 in this embodiment can also be a spring;

[0023] In order to further increase the sensitivity of the vibration sensor, in this embodiment, a fixed conductive part 6 is provided on the vibration contact electrode 4, which is located in the placement groove 2 and electrically connected to the vibration contact electrode 4, and a vibration conductive part 7 is provided on the movable electrical connection end 5-2, which is sleeved on the outside of the fixed conductive part 6 and spaced apart from the fixed conductive part 6, and the vibration conductive part 7 is also electrically connected to the movable electrical connection end 5-2; when in use, the movable electrical connection end 5-2 and the vibration conductive part 7 are driven by the elastic electrical connection part 5-3 to move in the corresponding direction, so that the vibration conductive part 7 spaced apart from the fixed conductive part 6 is in contact with the fixed conductive part 6 to make the vibration sensor work; specifically, as Figure 2 and 3 As shown, the fixed conductive part 6 in this embodiment is a cylindrical rod vertically arranged on the vibrating contact electrode 4, wherein the cylindrical rod can be integrally formed with the fixed conductive part 6; correspondingly, the vibrating conductive part 7 in this embodiment includes a contact part 7-1 arranged in the movable electrical connection end 5-2 and integrated with the movable electrical connection end 5-2, and a circular hole 7-2 corresponding to the outer surface of the cylindrical rod is opened on the contact part 7-1, and the fixed conductive part 6 is penetrated and arranged in the circular hole 7-2; when in use, the contact part 7-1 is sleeved on the outside of the cylindrical rod through the circular hole 7-2 and is spaced apart from the cylindrical rod, and when the elastic electrical connection part 5-3 senses the vibration in the horizontal direction of the vibration and drives the movable electrical connection end 5-2 to move in the corresponding direction, the contact part 7-1 can achieve contact and conduction with the fixed conductive part 6 in the corresponding direction.

[0024] Furthermore, in order to increase the vibration sensing direction of the vibration sensor in this embodiment, a connecting portion 9 extending toward the fixed conductive portion 6 and contacting and connecting with the fixed conductive portion 6 is provided on the sealing cover 8 in this embodiment, and the sealing cover 8 is electrically connected to the fixed conductive portion 6 through the connecting portion 9; when in use, when the elastic electrical connecting portion 5-3 vibrates upward, the elastic electrical connecting portion 5-3 and the sealing cover 8 can also realize the circuit conduction of the vibration sensor when in contact, realize the operation of the sensor, further increase the vibration sensing direction of the sensor, and improve the sensitivity of the sensor.

[0025] Among them, Figure 2 and 3 As shown, the battery cell 5 in this embodiment is a horizontal sheet structure, and a support mounting portion 10 for raising the fixed electrical connection terminal is provided between the fixed contact electrode 3 and the fixed electrical connection terminal 5-1, so that the movable electrical connection terminal 5-2 is suspended above the vibrating contact electrode 4;

[0026] Furthermore, in order to facilitate accurate positioning and installation of the battery cell 5, a mounting hole 11 is provided on the fixed electrical connection end 5-1 in this embodiment, and a fixed positioning member 12 is provided in the mounting hole 11 and is installed on the support mounting portion 10 to fix the fixed electrical connection end 5-1 on the support mounting portion 10; Figure 3 As shown, the fixed positioning member 12 in this embodiment is a positioning rod protruding from the support and mounting portion 10, and the fixed positioning member 12 can be integrated with the support and mounting portion 10, and the fixed electrical connection terminal 5-1 is fixedly mounted on the support and mounting portion 10 through the mounting hole 11 and the fixed positioning member 12; in this embodiment, the fixed contact electrode 3 and the vibration contact electrode 4 are used as inserts and the support and mounting portion 10 and the shell 1 are integrally formed by injection molding, so that the support and mounting portion 10 is connected to the inner cavity of the placement groove 2; in order to further increase the fixing effect of the fixed positioning member 12 on the fixed electrical connection terminal 5-1, the fixed positioning member 12 in this embodiment is protruding from the upper plane of the fixed electrical connection terminal 5-1 after penetrating the mounting hole 11, and after the fixed electrical connection terminal 5-1 is installed, the protruding fixed positioning member 12 is pressed by hot riveting, so that the protruding part of the fixed positioning member 12 is limited to the outside of the mounting hole 11 after hot melting to fix the fixed electrical connection terminal 5-1;

[0027] like Figure 3 As shown, in this embodiment, when the support and mounting portion 10 is a plastic insulating material, in order to achieve electrical connection between the fixed electrical connection terminal 5-1 and the fixed contact electrode 3, a channel is provided between the fixed electrical connection terminal 5-1 and the support and mounting portion 10, which can pass through the support and mounting portion 10 from the fixed electrical connection terminal 5-1 and lead to the fixed contact electrode 3, and a conductive portion connecting the fixed electrical connection terminal 5-1 and the fixed contact electrode 3 is provided in the channel; specifically, the channel in this embodiment includes channel holes 19 respectively correspondingly opened on the support and mounting portion 10 and the fixed electrical connection terminal 5-1, and the conductive portion is a conductive glue arranged in the channel hole 19; after the fixed electrical connection terminal 5-1 is installed, the conductive glue is poured into the channel hole 19 so that the fixed electrical connection terminal 5-1 is electrically connected to the fixed contact electrode 3 at the lower end of the channel hole 19 through the conductive glue.

[0028] like Figure 1-3 As shown, in order to enhance the air tightness of the sealing cover 8 in this embodiment, a surrounding portion 13 extending toward the outside of the shell 1 is provided on the sealing cover 8, and an auxiliary sealing portion 14 extending toward the outside is provided on the surrounding portion 13, and a contact sealing portion 15 fitted with the auxiliary sealing portion 14 is provided on the outside of the shell 1, thereby correspondingly increasing the contact area between the sealing cover 8 and the shell 1, thereby further improving the sealing performance of the vibration sensor.

[0029] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A vibration sensor for sensing multi-directional vibrations, comprising a housing (1) with a placement groove (2), a fixed contact electrode (3) and a vibration contact electrode (4) leading into the placement groove (2), and a battery cell (5), wherein the battery cell (5) comprises a fixed electrical connection terminal (5-1) connected to and mounted on the fixed contact electrode (3), a movable electrical connection terminal (5-2) suspended above the vibration contact electrode (4), and an elastic electrical connection portion (5-3) elastically supporting and electrically connecting the fixed electrical connection terminal (5-1) and the movable electrical connection terminal (5-2), wherein: The vibrating contact electrode (4) is provided with a fixed conductive part (6) located in the placement groove (2) and electrically connected to the vibrating contact electrode (4), and the movable electrical connection end (5-2) is provided with a vibrating conductive part (7) which is sleeved on the outside of the fixed conductive part (6) and spaced apart from the fixed conductive part (6).

2. A vibration sensor for sensing multi-directional vibration according to claim 1, characterized in that: The fixed conductive part (6) is a cylindrical rod vertically arranged on the vibrating contact electrode (4); the vibrating conductive part (7) comprises a contact part (7-1) arranged inside the movable electrical connection end (5-2) and integrated with the movable electrical connection end (5-2); a circular hole (7-2) arranged corresponding to the outer surface of the cylindrical rod is formed on the contact part (7-1); and the fixed conductive part (6) is arranged through the circular hole (7-2).

3. A vibration sensor for sensing multi-directional vibration according to claim 2, characterized in that: The housing (1) is provided with a sealing cover (8) covering the outside of the placement groove (2); the sealing cover (8) is provided with a connecting portion (9) extending toward the fixed conductive portion (6) and being in contact with and connected to the fixed conductive portion (6); the sealing cover (8) is electrically connected to the fixed conductive portion (6) via the connecting portion (9).

4. The vibration sensor for sensing multi-directional vibration according to claim 1, characterized in that: A supporting installation portion (10) for raising the fixed electrical connection end is provided between the fixed contact electrode (3) and the fixed electrical connection end (5-1).

5. A vibration sensor for sensing multi-directional vibration according to claim 4, characterized in that: The fixed electrical connection end (5-1) is provided with a mounting hole (11), and a fixing positioning member (12) is provided in the mounting hole (11) and is mounted on the supporting mounting portion (10) and fixes the fixed electrical connection end (5-1) on the supporting mounting portion (10).

6. A vibration sensor for sensing multi-directional vibration according to claim 4, characterized in that: A channel is provided between the fixed electrical connection terminal (5-1) and the support and installation portion (10), which can pass through the support and installation portion (10) from the fixed electrical connection terminal (5-1) and lead to the fixed contact electrode (3), and a conductive portion connecting the fixed electrical connection terminal (5-1) and the fixed contact electrode (3) is provided in the channel.

7. A vibration sensor for sensing multi-directional vibration according to claim 3, characterized in that: The sealing cover (8) is provided with a surrounding portion (13) extending toward the outside of the shell (1).

8. The vibration sensor for sensing multi-directional vibration according to claim 6, characterized in that: The channel comprises channel holes (19) respectively correspondingly opened on the support installation part (10) and the fixed electrical connection end (5-1), and the conductive part is conductive glue arranged in the channel hole (19).

9. The vibration sensor for sensing multi-directional vibration according to claim 7, characterized in that: The surrounding portion (13) is provided with an auxiliary sealing portion (14) extending outward, and the outer side of the housing (1) is provided with a contact sealing portion (15) fitted with the auxiliary sealing portion (14).

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