A gravity-sensing-based detection of front and back side tilt switch

Abstract

A kind of based on gravity sensing detects positive and negative side tilt switch, including first switch connecting plate, cavity plate, second switch connecting plate, conductor group, first switch connecting plate is equipped with first output end, cavity plate is equipped with accommodating cavity, public input end group, second switch connecting plate is equipped with second output end;Wherein, cavity plate is equipped with at least two mutually connected and metallized accommodating cavities, first switch connecting plate, second switch connecting plate are connected on the two sides of cavity plate relatively;Conductor group is connected in accommodating cavity, public input end group is connected in one of accommodating cavities, and is conducted by conductor group relatively moving and abutting in accommodating cavity inner wall and first output end or second output end, to detect that tilt switch is in positive or negative face conduction state.This scheme adopts the structure design of multiple cavities, multiple conductive bodies superposition, reaches the effect that the anti-shake performance of tilt switch is enhanced, the connection stability of tilt switch is improved and the detection reliability of tilt switch is enhanced.

Description

Technical Field

[0001] This utility model belongs to the technical field of tilt switches, and particularly relates to a tilt switch based on gravity sensing to detect the front and back sides. Background Technology

[0002] A tilt switch is a basic and important sensing element. Its working principle mainly relies on the effect of gravity on the internal movable metal body. When the switch body tilts relative to the direction of gravity to or beyond a preset angle, the metal body is displaced, thereby connecting or disconnecting the circuit and outputting a switch signal.

[0003] Existing gravity tilt switches have weak resistance to vibration / jitter due to their inherent mechanical structure, which easily leads to unstable connection of the gravity tilt switch and reduces the detection reliability of the gravity tilt switch. Therefore, this utility model proposes a new solution to the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a tilt switch based on gravity sensing to detect the front and back sides. It adopts a multi-cavity, multi-conductor superimposed structural design, which enhances the anti-jitter performance of the tilt switch, improves the connection stability of the tilt switch, and enhances the detection reliability of the tilt switch.

[0005] Based on this, the present invention provides a tilt switch based on gravity sensing to detect the front and back sides, comprising:

[0006] A first switch connection plate, the first switch connection plate being provided with a first output terminal;

[0007] A cavity plate, wherein the cavity plate is provided with a receiving cavity and a common input terminal group;

[0008] The second switch connection plate is provided with a second output terminal;

[0009] Conductor group;

[0010] The cavity plate has at least two interconnected and metallized accommodating cavities. The first switch connecting plate and the second switch connecting plate are connected opposite to each other on both sides of the cavity plate. The conductor group is connected inside the accommodating cavity, and the common input terminal group is connected to one of the accommodating cavities. The conductor group moves relative to each other and abuts against the inner wall of the accommodating cavity and conducts to the first output terminal or the second output terminal, thereby detecting whether the tilt switch is in a front-side conducting or back-side conducting state.

[0011] As described above, a tilt switch based on gravity sensing to detect the front and back sides is provided. The first switch connecting plate is further provided with a first contact for the conductor group to abut against, and the first contact is connected to the first output terminal. The second switch connecting plate is further provided with a second contact for the conductor group to abut against, and the second contact is connected to the second output terminal. The first contact and the second contact are correspondingly set with the receiving cavity, and are respectively precisely fitted into both ends of the receiving cavity.

[0012] As described above, in a tilt switch based on gravity sensing to detect the front and back sides, the conductor group has at least two conductors.

[0013] As described above, a tilt switch based on gravity sensing to detect the front and back sides has two common input terminal groups respectively disposed at both ends of the cavity plate, and the common input terminal group is provided with a first common input terminal and a second common input terminal, which are connected to the same accommodating cavity.

[0014] As described above, a tilt switch based on gravity sensing to detect the front and back sides is provided with a second switch connection plate, a first connection pad, a second connection pad, and a third connection pad. The first connection pad and the second connection pad are disposed on the other side of the second switch connection plate opposite to the third connection pad. The first output terminal, the second output terminal, and the common input terminal group are respectively connected to the first connection pad, the second connection pad, and the third connection pad.

[0015] As described above, a tilt switch based on gravity sensing to detect the front and back sides has metallized side half-holes at the corners of the outer contours of the first switch connecting plate, the cavity plate, and the second switch connecting plate. The first output terminal, the second output terminal, and the common input terminal group are respectively connected to the first connecting pad, the second connecting pad, and the third connecting pad through the side half-holes.

[0016] As described above, in a tilt switch based on gravity sensing to detect the front and back sides, the accommodating cavity is designed with a through-hole structure, and the maximum lengths L1 and L2 of the first contact and the second contact are smaller than the diameter L3 of the accommodating cavity.

[0017] In the tilt switch described above, which detects the front and back sides based on gravity sensing, the ratio of the diameter L3 of the accommodating cavity to the maximum width L4 of the conductor is L4 < L3 < 2L4.

[0018] As described above, in a tilt switch based on gravity sensing to detect the front and back sides, the cavity plate is further provided with a third connecting end, and the two accommodating cavities are connected through the third connecting end.

[0019] As described above, a tilt switch based on gravity sensing to detect the front and back sides is provided with a fourth connection terminal between the two first contacts and a fifth connection terminal between the two second contacts. The fourth connection terminal and the fifth connection terminal are respectively used to connect adjacent first contacts and second contacts.

[0020] Implementing the embodiments of this utility model has the following beneficial effects:

[0021] 1. This solution adopts a multi-cavity, multi-conductor stacked structure design. The cavity plate has at least two interconnected and metallized cavities, and each cavity contains conductor groups forming multiple parallel circuits. A common input terminal group is connected to one of these cavities. By connecting the first and second switch connection plates to opposite sides of the cavity plate, multiple conductors can move and stack relative to each other within the cavities, and conduction only occurs when they simultaneously contact the inner wall of the cavity and the first or second output terminal. The tilt switch's orientation (front or back) is then identified by the conduction of the first or second output terminal, effectively enhancing the tilt switch's anti-jitter performance and improving its connection stability during use. Furthermore, the interconnected and metallized multi-cavity structure allows detection via any cavity connecting to either the first or second output terminal, enhancing the tilt switch's stability during use. This achieves enhanced anti-jitter performance, improved connection stability, and increased detection reliability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0024] Figure 2 For the corresponding Figure 1 A structural diagram from another direction;

[0025] Figure 3 For the corresponding Figure 2 A structural diagram from another direction;

[0026] Figure 4 For the corresponding Figure 3 AA sectional view;

[0027] Figure 5 This is an exploded view of the structure of Embodiment 1 of this utility model;

[0028] Figure 6 For the corresponding Figure 5 A structural diagram from another direction;

[0029] Figure 7 This is a schematic diagram of the tilt switch mounted on a PCB board according to Embodiment 1 of this utility model.

[0030] In the diagram: 1-First switch connection board, 11-First output terminal, 12-First contact, 13-Fourth connection terminal; 2-Cavity board, 21-Accommodating cavity, 22-Common input terminal group, 221-First common input terminal, 222-Second common input terminal, 23-Third connection terminal; 3-Second switch connection board, 31-Second output terminal, 32-Second contact, 33-First connection pad, 34-Second connection pad, 35-Third connection pad, 36-Fifth connection terminal; 4-Conductor group, 41-Conductor; 5-Side half-hole; 6-PCB board. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1:

[0033] like Figures 1 to 7As shown, Embodiment 1 of this utility model provides a tilt switch based on gravity sensing to detect the front and back sides, including: a first switch connecting plate 1, a cavity plate 2, a second switch connecting plate 3, and a conductor group 4 formed by relatively moving and stacking multiple conductors 41. The first switch connecting plate 1 is provided with a first output terminal 11, the cavity plate 2 is provided with a receiving cavity 21 and a common input terminal group 22, and the second switch connecting plate 3 is provided with a second output terminal 31. The cavity plate 2 is provided with at least two interconnected and metallized receiving cavities 21, and the first switch connecting plate 1 and the second switch connecting plate 3 are connected opposite to each other on both sides of the cavity plate 2. The conductor group 4 is connected within the receiving cavity 21, and each conductor group 4 is connected to multiple interconnected and metallized conductors 41. The accommodating cavity 21 forms multiple parallel circuits; the common input terminal group 22 is connected to one of the accommodating cavities 21, and multiple conductors 41 are relatively moved and stacked within the accommodating cavity, so that the conductor group 4 simultaneously abuts against the metallized inner wall of the accommodating cavity 21 and the first output terminal 11 or the second output terminal 31 to achieve circuit conduction; preferably, through the parallel structural design, the tilt switch can achieve circuit conduction by connecting the conductor group 4 in any accommodating cavity 21 to any output terminal of the first output terminal or the second output terminal. Under the premise of enhancing the anti-jitter performance of the tilt switch, it is convenient to detect whether the tilt switch is in the front conduction or back conduction state, effectively improving the connection stability of the tilt switch and enhancing the detection reliability of the tilt switch.

[0034] In Embodiment 1 of this utility model, the accommodating cavity 21 is formed by mechanical stamping or laser cutting, and then the inner wall of the accommodating cavity 21 is metallized by a copper plating process to thicken the conductive layer and enhance conductivity.

[0035] Specifically, the first switch connecting plate 1 is further provided with a first contact 12 for the conductor group 4 to abut against, and the first contact 12 is connected to the first output terminal 11; the second switch connecting plate 3 is further provided with a second contact 32 for the conductor group 4 to abut against, and the second contact 32 is connected to the second output terminal 31; the first contact 12, the second contact 32 and the receiving cavity 21 are respectively and accurately fitted into both ends of the receiving cavity 21 to improve the ease of assembly of the tilt switch.

[0036] The first contact 12 refers to the contact area disposed on the surface of the first switch connection plate 1 and forming a conductive path with the first output terminal 11, and the second contact 32 refers to the contact area disposed on the surface of the second switch connection plate 3 and forming a conductive path with the second output terminal 31. The first contact 12 and the second contact 32 can be implemented by metal bumps or conductive coatings, and are used to establish a stable electrical connection when in contact with the conductive body group 4.

[0037] Preferably, the one-to-one correspondence setting means that each of the two openings of the accommodating cavity 21 is provided with a set of first contacts 12 and second contacts 32, ensuring that the conductor group 4 can only contact the corresponding contact in a single accommodating cavity 21; and adjacent first contacts 12 or second contacts 32 are connected in series, so that the tilt switch can achieve circuit conduction after the conductor group 4 in any accommodating cavity 21 contacts any of the first contacts 12 or second contacts 32, which effectively enhances the anti-jitter performance of the tilt switch and improves the connection stability of the tilt switch.

[0038] Furthermore, the conductor group 4 is provided with at least two conductors 41, and the conductors 41 can be metal balls, conductive pillars, or ellipsoids, wherein the shape of the conductive pillar is one of cubes, cuboids, or cylinders.

[0039] Preferably, in Embodiment 1 of this utility model, the conductor group 4 is provided with three conductors 41. When a single conductor 41 is momentarily displaced due to mechanical impact, the other two conductors 41 can still maintain contact to ensure the stability of the tilt switch current conduction. The cavity plate 2 is provided with two accommodating cavities 21. While optimizing the tilt switch structure, it effectively ensures that if any one of the accommodating cavities 21 fails, the other accommodating cavity 21 can still work stably to ensure the stability of the tilt switch during operation. In Embodiment 1 of this utility model, the accommodating cavity 21 is metallized by using an immersion gold process to thicken the conductive layer and enhance the conductivity of the accommodating cavity 21.

[0040] Furthermore, the two common input terminal groups 22 are respectively disposed at both ends of the cavity plate 2, and the common input terminal group 22 is provided with a first common input terminal 221 and a second common input terminal 222, and the first common input terminal 221 and the second common input terminal 222 are connected to the same accommodating cavity 21.

[0041] The first common input terminal 221 and the second common input terminal 222 refer to two independent and spaced conductive areas within the same common input terminal group, forming a redundant input path to reduce the risk of circuit breakage and enhance the stability of the tilt switch.

[0042] Furthermore, the second switch connection plate 3 is also provided with a first connection pad 33, a second connection pad 34, and a third connection pad 35. The first connection pad 33 and the second connection pad 34 are disposed on the other side of the second switch connection plate 3 opposite to the third connection pad 35. The first output terminal 11, the second output terminal 31, and the common input terminal group 22 are respectively connected to the first connection pad 33, the second connection pad 34, and the third connection pad 35.

[0043] The three pads are arranged separately on the second switch connection plate. When the tilt switch is tilted, the movement of the conductor group 4 within the accommodating cavity 21 causes the common input terminal group 22 to conduct with the first common input terminal 221 or the second common input terminal 222. At this time, the current is transmitted through the independent path of the corresponding pad. Since there is no overlapping area between the three pads, the contact point offset or short circuit caused by vibration in the traditional shared electrode structure is effectively avoided, which enhances the connection stability and safety of the tilt switch.

[0044] Furthermore, the first switch connecting plate 1, the cavity plate 2, and the second switch connecting plate 3 are all provided with metallized side half holes 5 at the corners of their outer contours. The first output terminal 11, the second output terminal 31, and the common input terminal group 22 are respectively connected to the first connecting pad 33, the second connecting pad 34, and the third connecting pad 35 through the side half holes 5.

[0045] The side half-hole 5 is a positioning through hole of the same size produced during the manufacturing of the first switch connecting plate 1, cavity plate 2, and second switch connecting plate 3. This positioning through hole is formed by cutting and separating 1 / 4 of the hole wall through mechanical stamping or laser cutting processes in the horizontal and vertical directions. Then, the side half-hole 5 is metallized by applying copper plating to thicken the conductive layer. The side half-hole 5 on the first switch connecting plate 1, cavity plate 2, and second switch connecting plate 3 are connected to form a vertical conductive path. The conductive path formed by the side half-hole 5 connects the first output terminal 11 with the first connecting pad 33, the second output terminal 31 with the second connecting pad 34, and the common input terminal group 22 with the third connecting pad 35, respectively, to ensure the smoothness and safety of circuit conduction.

[0046] Furthermore, the maximum lengths L1 and L2 of the first contact 12 and the second contact 32 are less than the diameter L3 of the accommodating cavity 21.

[0047] The maximum length of the first contact 12 and the second contact 32 refers to the longest dimension of the contact in the extension direction. Specifically, it can be implemented using a rectangular, elliptical, or circular planar structure. In Embodiment 1 of this utility model, a circular shape is preferred to ensure the stability of the conductivity between the first contact 12 or the second contact 32 and the conductor 41. At the same time, by limiting the maximum length of the contact, spatial interference between the first contact 12 and the second contact 32 and the inner wall of the accommodating cavity 21 can be effectively avoided, thereby improving the safety of the tilt switch during use.

[0048] Furthermore, the ratio of the diameter L3 of the accommodating cavity 21 to the maximum width L4 of the conductor 41 is L4 < L3 < 2L4.

[0049] The maximum width of the conductor 41 refers to the maximum lateral dimension of the conductor 41 perpendicular to the direction of movement. By limiting the ratio of diameter L3 to maximum width L4 to L4 < L3 < 2L4, the effective displacement capability of the conductor 41 during use is preserved, and the physical space is used to prevent the situation of double conductors jamming during the relative movement of multiple conductors 41, so as to ensure the stability of the tilt switch during use.

[0050] Furthermore, the cavity plate 2 is also provided with a third connecting end 23, and the two accommodating cavities 21 are connected through the third connecting end 23; in the first embodiment of this utility model, by setting the third connecting end 23, the two adjacent accommodating cavities 21 can realize current conduction, so that the tilt switch has at least one stable conduction path in any tilt state, thereby enhancing the stability of the tilt switch.

[0051] Furthermore, a fourth connection terminal 13 is provided between the two first contacts 12, and a fifth connection terminal 36 is provided between the two second contacts 32. The fourth connection terminal 13 and the fifth connection terminal 36 are respectively used to connect adjacent first contacts 12 and second contacts 32.

[0052] Preferably, the fourth connection terminal 13 and the fifth connection terminal 36 are used to connect adjacent first contacts 12 and second contacts 32, respectively. When the conductor group 4 is momentarily disconnected from a single first contact 12 or second contact 32 due to vibration, the adjacent contacts can still form a stable circuit by connecting with the first output terminal 11 or the second output terminal 31, which enhances the stability of the tilt switch during use and reduces the maintenance needs caused by poor contact.

[0053] Preferably, the first output terminal 11, the second output terminal 31, the first common input terminal 221, the second common input terminal 222, the third connection terminal 23, the fourth connection terminal 13, and the fifth connection terminal 36 are electrically connected using metal bridging plates or printed circuits to enhance the reliability of the tilt switch during use.

[0054] Preferably, in embodiment 1 of this utility model, the second switch connecting plate 3 and the cavity plate 2 are stacked in sequence, then the conductor group 4 is placed into the accommodating cavity 21, then the first switch connecting plate 1 is stacked on the cavity plate 2, and finally the plates are pressed together into a whole using a vacuum hot pressing device to complete the encapsulation of the tilt switch.

[0055] Preferably, in Embodiment 1 of this utility model, the tilt switch can be soldered onto the PCB board 6 via the first connecting pad 33, the second connecting pad 34, and the third connecting pad 35 to enhance the stability of the tilt switch during use; and multiple tilt switches in Embodiment 1 of this utility model can be combined and soldered together to form a multi-parallel circuit to enhance the safety and stability during use.

[0056] Preferably, in Embodiment 1 of this utility model, when the tilt switch is 0°-85°, it is a first conducting circuit: common input terminal group 22-second contact 32-second output terminal 31, and the output detection signal is front;

[0057] When the tilt switch is between 86° and 95°, it is the angle for switching between the front and back sides, and no detection signal is output.

[0058] When the tilt switch is between 96° and 180°, it is the second conducting circuit: common input terminal group 22 - first contact 12 - first output terminal 11, and the output detection signal is reversed.

[0059] Example 2:

[0060] The difference between this embodiment 2 and embodiment 1 is that pin mounting holes are reserved on the first connecting pad 33, the second connecting pad 34, and the third connecting pad 35, and quick-connect pins are inserted into each pad through the pin mounting holes; preferably, in this embodiment 2, the quick-connect pins can be straight pins or L-shaped pins to meet the applicability of different occasions and improve the convenience of connecting the tilt switch to the PCB board 6.

[0061] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0062] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A tilt switch for detecting a front or back side based on a gravity sensor, characterized by, include: The first switch connection plate (1) is provided with a first output terminal (11); Cavity plate (2), the cavity plate (2) is provided with accommodating cavity (21) and common input terminal group (22); The second switch connection plate (3) is provided with a second output terminal (31); Conductor group (4); The cavity plate (2) has at least two interconnected and metallized accommodating cavities (21). The first switch connecting plate (1) and the second switch connecting plate (3) are connected to each other on both sides of the cavity plate (2). The conductor group (4) is connected inside the accommodating cavity (21). The common input terminal group (22) is connected to one of the accommodating cavities (21). The conductor group (4) moves relative to the accommodating cavity (21) and abuts against the inner wall of the accommodating cavity (21) and conducts to the first output terminal (11) or the second output terminal (31), thereby detecting whether the tilt switch is in a front-side conduction or back-side conduction state.

2. The gravity-sensing, front-and-back-side detecting, tilt switch according to claim 1, wherein, The first switch connecting plate (1) is also provided with a first contact (12) for the conductor group (4) to abut against, and the first contact (12) is connected to the first output terminal (11); the second switch connecting plate (3) is also provided with a second contact (32) for the conductor group (4) to abut against, and the second contact (32) is connected to the second output terminal (31); the first contact (12) and the second contact (32) are respectively corresponding to the accommodating cavity (21) and are respectively precisely fitted into both ends of the accommodating cavity (21).

3. A tilt switch based on gravity sensing to detect the front and back sides according to claim 2, characterized in that, The conductor group (4) shall have at least two conductors (41).

4. A tilt switch based on gravity sensing to detect the front and back sides according to claim 1, characterized in that, Two common input terminal groups (22) are respectively disposed at both ends of the cavity plate (2), and the common input terminal group (22) is provided with a first common input terminal (221) and a second common input terminal (222), and the first common input terminal (221) and the second common input terminal (222) are connected to the same accommodating cavity (21).

5. A tilt switch based on gravity sensing to detect the front and back sides according to claim 4, characterized in that, The second switch connection plate (3) is also provided with a first connection pad (33), a second connection pad (34), and a third connection pad (35). The first connection pad (33) and the second connection pad (34) are disposed on the other side of the second switch connection plate (3) relative to the third connection pad (35). The first output terminal (11), the second output terminal (31), and the common input terminal group (22) are respectively connected to the first connection pad (33), the second connection pad (34), and the third connection pad (35).

6. A tilt switch based on gravity sensing to detect the front and back sides according to claim 5, characterized in that, The first switch connecting plate (1), the cavity plate (2), and the second switch connecting plate (3) are all provided with metallized side half holes (5) at the corners of their outer contours. The first output terminal (11), the second output terminal (31), and the common input terminal group (22) are respectively connected to the first connecting pad (33), the second connecting pad (34), and the third connecting pad (35) through the side half holes (5).

7. A tilt switch based on gravity sensing to detect the front and back sides according to claim 3, characterized in that, The accommodating cavity (21) is designed with a through hole structure, and the maximum lengths L1 and L2 of the first contact (12) and the second contact (32) are smaller than the diameter L3 of the accommodating cavity (21).

8. A tilt switch based on gravity sensing to detect the front and back sides according to claim 7, characterized in that, The ratio of the diameter L3 of the accommodating cavity (21) to the maximum width L4 of the conductor (41) is L4 < L3 < 2L4.

9. A tilt switch based on gravity sensing to detect the front and back sides according to claim 2, characterized in that, The cavity plate (2) is also provided with a third connecting end (23), through which the two accommodating cavities (21) are connected.

10. A tilt switch based on gravity sensing to detect the front and back sides according to claim 9, characterized in that, A fourth connection terminal (13) is provided between the two first contacts (12), and a fifth connection terminal (36) is provided between the two second contacts (32). The fourth connection terminal (13) and the fifth connection terminal (36) are respectively used to connect the adjacent first contacts (12) and second contacts (32).

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