A patch one-way tilt switch

Abstract

A kind of patch one-way tilt switch, including first connecting plate, limiting plate, second connecting plate, conductive ball group, limiting plate is equipped with the limiting slot of through limiting plate metallization, first connecting plate is connected in limiting slot one end, second connecting plate is connected in limiting slot other end relative to first connecting plate;Conductive ball group is placed in limiting slot, for limiting slot and first connecting plate or second connecting plate are conducted;Wherein, conductive ball group includes at least 2 conductive balls, define the plane of the plate material of tilt switch as horizontal direction, when one end of patch one-way tilt switch is tilted 10 °-90 ° along horizontal direction upwards, for non-conducting state;When the other end of patch one-way tilt switch is tilted 10 °-90 ° along horizontal direction upwards, for conducting state.This scheme adopts the design of patch structure plus multiple conductive balls to form conductive ball group, reaches the effect of improving the production convenience of patch one-way tilt switch, enhances the reliability of use, prolongs service life and reduces production cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of tilt switches, and particularly relates to a patch unidirectional tilt switch. Background Technology

[0002] One-way tilt switches are simple in structure, low in cost, reliable in response, and small in size (meeting SMT requirements), making them easy to integrate into the PCBs of modern electronic products. They are widely used in consumer electronics (such as screen rotation control), security equipment (such as tilt alarms), industrial control (such as position status detection), sports equipment (such as posture recognition), and toys, to detect whether the device has tilted or tipped over in a specific direction. In the normal (untilted) state, the conductive ball is located at the bottom of the switch cavity due to gravity and does not contact the specific electrode, so the circuit is in an open state. When the device tilts more than a specific angle (i.e., the action angle) along its preset single sensitive direction, the conductive ball rolls under the action of gravity, contacts one of the two preset electrodes in the cavity, and conducts electricity, thereby outputting a switching signal to indicate the occurrence of the tilt direction.

[0003] Most existing one-way tilt switches use through-hole packaging and rely on a mechanical triggering structure of a single conductive ball. This not only results in a large size and low installation efficiency, but also causes the conductive ball to wear out easily during long-term use, which greatly reduces the reliability of the one-way 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 surface-mount unidirectional tilt switch, which adopts a surface-mount structure with multiple conductive balls forming a conductive ball group. This design improves the ease of production, enhances the reliability of use, extends the service life, and reduces production costs.

[0005] Based on this, the present invention provides a patch unidirectional tilt switch, comprising: 1. A surface-mount unidirectional tilt switch, comprising: First connecting plate; A limiting plate, wherein the limiting plate is provided with a metallized limiting groove that passes through the limiting plate, and the first connecting plate is connected to one end of the limiting groove; A second connecting plate is connected to the other end of the limiting groove relative to the first connecting plate; A conductive ball assembly is movably placed within the limiting groove to connect the limiting groove to the first connecting plate or the second connecting plate. The conductive ball group includes at least two conductive balls. The plate plane of the tilt switch is defined as horizontal. When one end of the surface mount unidirectional tilt switch is tilted upwards at 10°-90° along the horizontal direction, it is in a non-conductive state; when the other end of the surface mount unidirectional tilt switch is tilted upwards at 10°-90° along the horizontal direction, it is in a conductive state.

[0006] As described above, in a surface-mount unidirectional tilt switch, the depth of the limiting groove is greater than the diameter of a single conductive ball along the depth direction of the limiting groove.

[0007] As described above, in a surface-mount unidirectional tilt switch, the direction with the largest horizontal dimension of the limiting groove is defined as the X direction, and the direction perpendicular to the X direction is defined as the Y direction; along the X direction, the dimension of the limiting groove is greater than the sum of the diameters of the conductive ball group; along the Y direction, the dimension of the limiting groove is greater than the diameter of a single conductive ball.

[0008] As described above, in a surface mount unidirectional tilt switch, the limiting plate is further provided with a limiting connecting wire group for connecting to an external circuit, and the limiting connecting wire group is connected to the same side of the limiting groove along the X direction.

[0009] As described above, in a surface-mount unidirectional tilt switch, the second connecting plate has a second electrode plate on the side facing the limiting plate for connecting to an external circuit, and the second electrode plate is contacted by the conductive ball; along the X direction, the length of the second electrode plate does not exceed half the length of the limiting groove; along the Y direction, the width of the second electrode plate is less than the width of the limiting groove.

[0010] As described above, in a surface mount one-way tilt switch, the second connecting plate has a second connecting wire group on the side facing the limiting plate for connecting to an external circuit; along the X direction, the second connecting wire group is located on the same side of the second connecting plate and connected to the second electrode sheet, and the second connecting wire group and the limiting connecting wire group are located opposite each other on both sides of the surface mount one-way tilt switch.

[0011] As described above, in a surface mount unidirectional tilt switch, the second connecting plate has a first pad and a second pad for connecting external circuits on the side away from the limiting plate. The first pad and the second pad are arranged opposite each other on both sides of the second connecting plate along the X direction, and the first pad and the second pad are spaced apart. The second electrode is arranged on the side close to the first pad, and the second electrode is connected to the first pad through the second connecting wire group.

[0012] As described above, a surface-mount unidirectional tilt switch, along the X direction, further includes a first main conductive channel and a second main conductive channel disposed on both sides. The first main conductive channel and the second main conductive channel are respectively connected to the first pad and the second pad to conduct the circuit. One end of the second connecting wire group is connected to the first main conductive channel, and the other end is connected to the second electrode sheet. One end of the limiting connecting wire group is connected to the second main conductive channel, and the other end is connected to the limiting groove.

[0013] As described above, in a surface-mount unidirectional tilt switch, the first connecting plate has a first electrode sheet on the side facing the limiting plate for conducting external circuits, and the first electrode sheet is contacted by the conductive ball; along the X direction, the length of the first electrode sheet does not exceed half the length of the limiting groove; along the Y direction, the width of the first electrode sheet is less than the width of the limiting groove.

[0014] As described above, in a surface mount unidirectional tilt switch, the first connecting plate is further provided with a first connecting wire group for connecting to an external circuit; along the X direction, the first connecting wire group is connected to the same side of the first connecting plate, and the first connecting wire group and the second connecting wire group are arranged on the same side of the surface mount unidirectional tilt switch; one end of the first connecting wire group is connected to the first main conductive channel, and the other end is connected to the first electrode sheet.

[0015] The beneficial effects of this utility model are as follows: This solution employs a patch structure with multiple conductive balls forming a conductive ball assembly. Firstly, the first connecting plate, limiting plate, and second connecting plate utilize a sheet-like structure, allowing for assembly simply by sequential connection, significantly improving production convenience. Secondly, by placing a conductive ball assembly consisting of at least two conductive balls within the limiting groove between the first and second connecting plates, when the patch unidirectional tilt switch tilts to the preset operating angle in a single direction, multiple conductive balls roll and contact the limiting groove and the first connecting plate, or simultaneously the limiting groove and the second connecting plate, achieving multi-point redundant conduction and significantly reducing contact loss due to long-term wear of the conductive balls. This design minimizes the risk of contact malfunction; and even when one conductive ball wears out, the remaining conductive balls can still ensure reliable conduction between the limiting groove and the first or second connecting plate, thereby significantly improving the trigger sensitivity and extending the service life of the surface mount unidirectional tilt switch. Simultaneously, this structure offers advantages such as compact size and ease of mass production, and provides a clear and stable on / off state within a tilt angle range of 10°-90°, ensuring consistency of trigger action and accuracy of signal. This achieves the effects of improving the ease of production of surface mount unidirectional tilt switches, enhancing reliability, extending service life, and reducing production costs. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 For the corresponding Figure 1 A structural diagram from another direction; Figure 3 This is an exploded view of the structure of Embodiment 1 of this utility model; Figure 4 For the corresponding Figure 3 A structural diagram from another direction; Figure 5 This is a partial hidden view of the structure of the conductive ball assembly abutting against the first electrode sheet in Embodiment 1 of this utility model; Figure 6 This is a partial hidden view of the structure of the conductive ball assembly abutting against the second electrode sheet in Embodiment 1 of this utility model; Figure 7 This is a schematic diagram of the structure of the present invention connected to the PCB board according to an embodiment; Figure 8 For the corresponding Figure 7 A schematic diagram of the structure from another direction.

[0018] In the diagram: 1-First connecting plate, 11-First electrode plate, 12-First connecting line group, 121-Fifth connecting line, 122-Sixth connecting line, 131-First external conductive channel, 132-Second external conductive channel; 2-Limiting plate, 21-Limiting groove, 22-Limiting connecting line group, 221-First limiting connecting line, 222-Second limiting connecting line, 231-Fifth external conductive channel, 232-Sixth external conductive channel; 3-Second connecting plate, 31-Second electrode plate, 32-First solder pad, 33-Second solder pad, 34-Second connecting line group, 341-Third connecting line, 342-Fourth connecting line, 351-Third external conductive channel, 352-Fourth external conductive channel; 4-Conductive ball group, 41-Conductive ball; 51-First main conductive channel, 52-Second main conductive channel; 6-PCB board. Detailed Implementation

[0019] 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.

[0020] Example 1: like Figures 1 to 8 As shown, this utility model embodiment 1 provides a patch unidirectional tilt switch, comprising: The device comprises a first connecting plate 1, a limiting plate 2, a second connecting plate 3, and a conductive ball assembly 4. The limiting plate 2 has a metallized limiting groove 21 that passes through the limiting plate 2. The first connecting plate 1 is connected to one end of the limiting groove 21. The second connecting plate 3 is connected to the other end of the limiting groove 21 relative to the first connecting plate 1. The conductive ball assembly 4 is movably placed in the limiting groove 21 to conduct electricity between the limiting groove 21 and the first connecting plate 1 or the second connecting plate 3. The conductive ball assembly 4 includes at least two conductive balls 41. The plate plane of the tilt switch is defined as horizontal. When one end of the surface mount unidirectional tilt switch is tilted upwards at 10°-90° along the horizontal direction, it is in a non-conductive state. When the other end of the surface mount unidirectional tilt switch is tilted upwards at 10°-90° along the horizontal direction, it is in a conductive state.

[0021] In Embodiment 1 of this utility model, both the first connecting plate 1 and the second connecting plate 3 are connected to an external circuit. By having multiple conductive balls 41 roll and simultaneously contact the limiting groove 21 and the first connecting plate 1, or the limiting groove 21 and the second connecting plate 3, the circuit is connected. This enables the patch unidirectional tilt switch to achieve multi-point redundant conduction when tilted to the operating angle in a preset single direction. This significantly reduces the risk of poor contact caused by long-term wear of the conductive balls 41 and enhances the reliability of the patch unidirectional tilt switch during use. The conductive ball group 4 includes at least two conductive balls 41. Preferably, this invention provides three conductive balls 41. By having the three conductive balls 41 roll within the limiting groove 21, even if one of the conductive balls 41 wears out, the remaining conductive balls 41 can still ensure reliable conduction between the limiting groove 21 and the first connecting plate 1, or between the limiting groove 21 and the second connecting plate 3. This significantly improves the ease of use of the surface mount one-way tilt switch and extends its service life.

[0022] In Embodiment 1 of this utility model, the conductive ball 41 is one of the following: conductive polymer ball, silver-plated copper ball, carbon-based conductive ball, and gold-plated stainless steel ball. It is preferred to use silver-plated copper ball or carbon-based conductive ball to reduce the production cost of the surface mount unidirectional tilt switch.

[0023] In Embodiment 1 of this utility model, the first connecting plate 1, the limiting plate 2 and the second connecting plate 3 adopt a sheet-like structural design. They are manufactured by mass production using sheet materials, and can be assembled simply by connecting them in sequence, which greatly improves the convenience of production. Specifically, along the depth direction of the limiting groove 21, the depth of the limiting groove 21 is greater than the diameter of a single conductive ball 41.

[0024] In Embodiment 1 of this utility model, the depth of the limiting groove 21 is greater than the diameter of a single conductive ball 41, which is beneficial to provide sufficient free rolling space for the conductive ball 41 in the depth direction. This ensures that when the surface mount unidirectional tilt switch is tilted to the operating angle in a preset single direction, multiple conductive balls 41 can roll smoothly and quickly and reliably contact the first connecting plate 1 or the second connecting plate 3, avoiding jamming or contact delay caused by insufficient groove depth of the limiting groove 21. At the same time, by reserving a margin in the depth direction of the limiting groove 21, the impact of long-term wear of the conductive ball 41 on the triggering accuracy is reduced, significantly improving the response sensitivity, conduction reliability and extending the service life of the surface mount unidirectional tilt switch.

[0025] Furthermore, the direction with the largest horizontal dimension of the limiting groove 21 is defined as the X direction, and the direction perpendicular to the X direction is defined as the Y direction; along the X direction, the dimension of the limiting groove 21 is greater than the sum of the diameters of the conductive ball group 4; along the Y direction, the dimension of the limiting groove 21 is greater than the diameter of a single conductive ball 41.

[0026] In Embodiment 1 of this utility model, by designing the dimension of the limiting groove 21 along the X direction to be greater than the sum of the diameters of the conductive ball group 4, the conductive ball 41 obtains sufficient rolling buffer space in the horizontal plane. When the patch unidirectional tilt switch is subjected to external vibrations or impacts in different directions, the space margin of the limiting groove 21 in the X direction can first absorb the lateral inertial component, preventing the conductive ball 41 from directly triggering conduction, thereby reducing the error triggering rate. At the same time, the margin in the X direction allows the conductive ball 41 to automatically disperse and arrange itself after each tilt reset, avoiding the conductive ball 41 from accumulating at the same contact point for a long time and the occurrence of jamming, thus enhancing the stability of the patch unidirectional tilt switch during use.

[0027] In Embodiment 1 of this utility model, by designing the dimension of the limiting groove 21 along the Y direction to be larger than the diameter of a single conductive ball 41, an additional reserved gap is provided for the conductive ball 41 in the direction perpendicular to the contact direction. This reserved gap allows multiple conductive balls 41 to be slightly misaligned along the Y direction during tilting, avoiding mutual compression that would cause a sudden increase in rolling resistance, thus ensuring smooth conduction. At the same time, the reserved space in the Y direction can effectively buffer the lateral impact generated during transportation or drop of the patch unidirectional tilt switch, thereby reducing the single-point impact force of the conductive ball 41 on the side wall of the limiting groove 21, thereby reducing the risk of micro-cracks in the patch unidirectional tilt switch and improving the reliability of the overall structure.

[0028] Furthermore, the limiting plate 2 is also provided with a limiting connecting line group 22 for connecting to an external circuit, and the limiting connecting line group 22 is connected to the same side of the limiting groove 21 along the X direction.

[0029] In Embodiment 1 of this utility model, the limiting connection line group 22 includes a first limiting connection line 221 and a second limiting connection line 222. Along the Y direction, the first limiting connection line 221 and the second limiting connection line 222 are arranged opposite to each other on both sides of the limiting groove 21 to connect the limiting groove 21 with the external circuit, forming a parallel dual-path, thereby enhancing the stability and reliability of the surface mount unidirectional tilt switch during use.

[0030] In Embodiment 1 of this utility model, the limiting plate 2 is provided with the limiting connecting line group 22 on the side facing the first connecting plate 1 and the other side facing the second connecting plate 3, so as to ensure the reliability of the patch unidirectional tilt switch during use.

[0031] Furthermore, the second connecting plate 3 is provided with a second electrode plate 31 for connecting to an external circuit on the side facing the limiting plate 2. The second electrode plate 31 is contacted by the conductive ball 41. Along the X direction, the length of the second electrode plate 31 does not exceed half the length of the limiting groove 21. Along the Y direction, the width of the second electrode plate 31 is less than the width of the limiting groove 21.

[0032] In Embodiment 1 of this utility model, the second electrode plate 31 is designed to be embedded in the second connecting plate 3. The second electrode plate 31 is embedded with a portion protruding towards the limiting plate 2, and the length of the second electrode plate 31 does not exceed half the length of the limiting groove 21. The width of the second electrode plate 31 is smaller than the width of the limiting groove 21, so that the protruding portion of the second electrode plate 31 can be completely inserted into the limiting groove 21. This allows the conductive ball 41 to directly and accurately abut against the second electrode plate 31 after tilting and rolling, thereby achieving the shortest possible connection time. The current path completes the instantaneous conduction between the limiting groove 21 and the second connecting plate 3, improving the sensitivity of the patch unidirectional tilt switch; preferably, along the X direction, the second connecting plate 3 is provided with a maximum of two second electrode pieces 31, and the two second electrode pieces 31 are spaced apart to avoid short circuits; wherein, only one second electrode piece 31 is connected to the external circuit, so that one end of the patch unidirectional tilt switch tilts upward along the horizontal direction by 10°-90° to enter the non-conducting state, and the other end of the patch unidirectional tilt switch tilts upward along the horizontal direction by 10°-90° to enter the conducting state.

[0033] Preferably, by designing the length of the second electrode plate 31 to not exceed half the length of the limiting groove 21, when one end of the patch one-way tilt switch is tilted upward in the horizontal direction by 10°-90°, the conductive ball 41 can directly and accurately abut against the second electrode plate 31 after tilting and rolling, thereby entering the conduction state, ensuring the sensitivity and reliability of the patch one-way tilt switch triggering.

[0034] Furthermore, the second connecting plate 3 is provided with a second connecting wire group 34 for connecting external circuits on the side facing the limiting plate 2; along the X direction, the second connecting wire group 34 is provided on the same side of the second connecting plate 3 and is connected to the second electrode plate 31, and the second connecting wire group 34 and the limiting connecting wire group 22 are provided opposite to each other on both sides of the patch unidirectional tilt switch.

[0035] In Embodiment 1 of this utility model, the second connecting line group 34 includes a third connecting line 341 and a fourth connecting line 342. Along the Y direction, the third connecting line 341 and the fourth connecting line 342 are arranged opposite to each other on both sides of the second electrode plate 31 to connect the second electrode plate 31 with the external circuit, forming a parallel dual-path, which enhances the stability and reliability of the surface mount unidirectional tilt switch during use. At the same time, by having the second connecting line group 34 and the limiting connecting line group 22 arranged opposite to each other on both sides of the surface mount unidirectional tilt switch, short circuits can be effectively avoided after the surface mount unidirectional tilt switch is turned on, thus improving the safety of the surface mount unidirectional tilt switch.

[0036] Furthermore, the second connecting plate 3 has a first pad 32 and a second pad 33 for connecting external circuits on the side away from the limiting plate 2. The first pad 32 and the second pad 33 are arranged opposite each other on both sides of the second connecting plate 3 along the X direction, and the first pad 32 and the second pad 33 are spaced apart. The second electrode plate 31 is arranged on the side close to the first pad 32, and the second electrode plate 31 is connected to the first pad 32 through the second connecting line group 34.

[0037] In Embodiment 1 of this utility model, the first pad 32 and the second pad 33 are arranged opposite to each other on both sides of the second connecting plate 3 along the X direction, and the first pad 32 and the second pad 33 are spaced apart, so that the first pad 32 and the second pad 33 are respectively connected to the external circuit, ensuring that no short circuit will occur when conduction occurs, and improving the safety of the surface mount unidirectional tilt switch. At the same time, the second electrode piece 31 is arranged on the side close to the first pad 32, and the second electrode piece 31 is connected to the first pad 32 through the third connecting line 341 and the fourth connecting line 342. The wiring principle of proximity on the same side makes the routing path from the second electrode piece 31 to the first pad 32 the shortest, effectively reducing the loop resistance, thereby reducing the delay of the tilt trigger signal and improving the reliability of the surface mount unidirectional tilt switch.

[0038] Furthermore, in Embodiment 1 of this utility model, a surface-mount unidirectional tilt switch further includes, along the X direction, a first main conductive channel 51 and a second main conductive channel 52 disposed on both sides. The first main conductive channel 51 and the second main conductive channel 52 are respectively connected to the first pad 32 and the second pad 33 to conduct the circuit. One end of the second connecting wire group 34 is connected to the first main conductive channel 51, and the other end is connected to the second electrode sheet 31. One end of the limiting connecting wire group 22 is connected to the second main conductive channel 52, and the other end is connected to the limiting groove 21.

[0039] In Embodiment 1 of this utility model, the first main conductive channel 51 and the second main conductive channel 52 are respectively connected to the first pad 32 and the second pad 33 to conduct external circuits and form a loop, avoiding short circuits after conduction and improving the safety of the surface mount unidirectional tilt switch. Preferably, two first main conductive channels 51 and two second main conductive channels 52 are respectively provided on both sides of the surface mount unidirectional tilt switch; one end of the first limiting connecting line 221 and the second limiting connecting line 222 is connected to the limiting groove 21, and the other end is respectively connected to the two second main conductive channels 52; one end of the third connecting line 341 and the fourth connecting line 342 is connected to the second electrode plate 31, and the other end is respectively connected to the two first main conductive channels 51, so that a parallel dual-path is formed after connection, enhancing the stability and reliability of the surface mount unidirectional tilt switch during use.

[0040] In Embodiment 1 of this utility model, the outer side of the first connecting plate 1 is provided with a first external conductive channel group for connecting external circuits. The first external conductive channel group includes two first external conductive channels 131 and a second external conductive channel 132. The first external conductive channels 131 and the second external conductive channels 132 are arranged opposite to each other on both sides of the first connecting plate 1. The outer side of the second connecting plate 3 is also provided with a second external guide channel group, which includes two third external guide channels 351 and a fourth external guide channel 352. The third external guide channels 351 and the fourth external guide channels 352 are arranged opposite to each other on both sides of the second connecting plate 3. The outer side of the limiting plate 2 is also provided with a third external guide channel group for connecting external circuits. The third external guide channel group includes two fifth external guide channels 231 and a sixth external guide channel 232, which are arranged opposite to each other on both sides of the limiting plate 2. The first external conductive channel 131, the fifth external conductive channel 231, and the third external conductive channel 351 are sequentially connected to form the first main conductive channel 51, and the second external conductive channel 132, the sixth external conductive channel 232, and the fourth external conductive channel 352 are sequentially connected to form the second main conductive channel 52; one end of the third connecting line 341 and the fourth connecting line 342 are respectively connected to the two third external conductive channels 351, and the other end is connected to the second electrode plate 31; one end of the first limiting connecting line 221 and the second limiting connecting line 222 are respectively connected to the two sixth external conductive channels 232, and the other end is connected to the limiting groove 21; and the third external conductive channel 351 and the fourth external conductive channel 352 are respectively connected to the first pad 32 and the second pad 33 to conduct external circuits.

[0041] Furthermore, the side of the first connecting plate 1 facing the limiting plate 2 is provided with a first electrode plate 11 for conducting external circuits, and the first electrode plate 11 is contacted by the conductive ball 41; along the X direction, the length of the first electrode plate 11 does not exceed half the length of the limiting groove 21; along the Y direction, the width of the first electrode plate 11 is less than the width of the limiting groove 21.

[0042] In Embodiment 1 of this utility model, the first electrode plate 11 is designed to be embedded in the first connecting plate 1. The first electrode plate 11 is embedded and partially exposed towards the limiting plate 2, with its length not exceeding half the length of the limiting groove 21 and its width less than the width of the limiting groove 21. This allows the exposed portion of the first electrode plate 11 to be completely inserted into the limiting groove 21, enabling the conductive ball 41 to directly and accurately contact the first electrode plate 11 after tilting and rolling. This achieves instantaneous conduction between the limiting groove 21 and the first connecting plate 1 within the shortest current path, improving the sensitivity of the patch unidirectional tilt switch. In this embodiment, along the X direction, a maximum of two first electrode pieces 11 are arranged on the first connecting plate 1, with the two first electrode pieces 11 spaced apart to avoid short circuits. Only one of the first electrode pieces 11 is connected to the external circuit, so that one end of the patch one-way tilt switch tilts upwards at 10°-90° in the horizontal direction to enter a non-conductive state, and the other end of the patch one-way tilt switch tilts upwards at 10°-90° in the horizontal direction to enter a conductive state. In this embodiment, the first electrode piece 11 and the second electrode piece 31 are arranged in a one-to-one correspondence, and the first electrode piece 11 and the second electrode piece 31 located on the same side of the patch one-way tilt switch are connected to the external circuit to ensure the reliability of the conduction.

[0043] Furthermore, the first connecting plate 1 is also provided with a first connecting wire group 12 for connecting external circuits; along the X direction, the first connecting wire group 12 is connected to the same side of the first connecting plate 1, and the first connecting wire group 12 and the second connecting wire group 34 are arranged on the same side of the surface mount unidirectional tilt switch; one end of the first connecting wire group 12 is connected to the first main conductive channel 51, and the other end is connected to the first electrode sheet 11.

[0044] In Embodiment 1 of this utility model, the first connecting line group 12 includes a fifth connecting line 121 and a sixth connecting line 122. Along the Y direction, one end of the fifth connecting line 121 and the sixth connecting line 122 are disposed opposite to each other on both sides of the first electrode sheet 11, and the other end of the fifth connecting line 121 and the sixth connecting line 122 are respectively connected to two first external conductive channels 131 to connect the second electrode sheet 31 to the external circuit, forming a parallel dual-path, which enhances the stability and reliability of the surface mount unidirectional tilt switch during use. At the same time, by placing the first connecting line group 12 and the second connecting line group 34 on the same side of the surface mount unidirectional tilt switch, short circuits can be effectively avoided after the surface mount unidirectional tilt switch is turned on, thus improving the safety of the surface mount unidirectional tilt switch.

[0045] In this utility model embodiment, the surface mount one-way tilt switch is directly soldered onto the PCB board 6 via the first pad 32 and the second pad 33; or, by providing sockets on the first pad 32 and the second pad 33, a pin is connected to the socket and inserted into the PCB board 6 via the pin, thereby improving the installation flexibility of the surface mount one-way tilt switch.

[0046] In Embodiment 1 of this utility model, the limiting groove 21, the first external guide channel group, the second external guide channel group, and the third external guide channel group are connected by metallization. The metal layer is thickened by chemical copper plating combined with electroplating copper to enhance conductivity.

[0047] In Embodiment 1 of this utility model, both ends of the limiting groove 21 along the X direction are designed with arc-shaped structures. Through the arc-shaped structure design, the conductive ball 41 can achieve a smooth transition and buffer when it reaches the limit position, effectively reducing impact stress and wear, thereby extending the service life of the conductive ball 41 and the metallized groove wall. At the same time, the arc-shaped surface forms a natural guide, allowing the conductive ball 41 to roll more smoothly when the patch unidirectional tilt switch is tilted, avoiding jamming and ensuring long-term stability of the action angle and release angle. In addition, the arc-shaped structure design reduces sharp stress concentration points, reducing the risk of cracking of the limiting plate 2 under drop or vibration conditions, thereby extending the service life of the patch unidirectional tilt switch.

[0048] Example 2: The difference between Embodiment 2 and Embodiment 1 is that a third and fourth solder pad for connecting external circuits are provided on the side of the first connecting plate 1 facing away from the limiting plate 2. The third and fourth solder pads are arranged opposite each other on both sides of the first connecting plate 1 along the X direction, and are spaced apart. The first electrode piece 11 is located on the side closest to the third solder pad, and is connected to the third solder pad via the first connecting wire group 12. Embodiment 2 of this utility model, by providing the third and fourth solder pads, makes the surface mount unidirectional tilt switch completely symmetrical on both sides and usable for soldering, greatly improving the ease of tape-and-reel packaging and installation of the surface mount unidirectional tilt switch.

[0049] 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.

[0050] 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 surface-mount unidirectional tilt switch, characterized in that, include: First connecting plate (1); A limiting plate (2) is provided with a metallized limiting groove (21) that passes through the limiting plate (2), and the first connecting plate (1) is connected to one end of the limiting groove (21); The second connecting plate (3) is connected to the other end of the limiting groove (21) relative to the first connecting plate (1); Conductive ball assembly (4), the conductive ball assembly (4) is movably placed in the limiting groove (21) for conducting the limiting groove (21) to the first connecting plate (1) or the second connecting plate (3). The conductive ball group (4) includes at least two conductive balls (41). The plate plane of the tilt switch is defined as horizontal. When one end of the patch unidirectional tilt switch is tilted upwards at 10°-90° along the horizontal direction, it is in a non-conductive state. When the other end of the patch unidirectional tilt switch is tilted upwards at 10°-90° along the horizontal direction, it is in a conductive state.

2. A patch unidirectional tilt switch according to claim 1, characterized in that, Along the depth direction of the limiting groove (21), the depth of the limiting groove (21) is greater than the diameter of a single conductive ball (41).

3. A patch unidirectional tilt switch according to claim 1, characterized in that, The direction in which the horizontal dimension of the limiting groove (21) is largest is defined as the X direction, and the direction perpendicular to the X direction is defined as the Y direction; along the X direction, the dimension of the limiting groove (21) is greater than the sum of the diameters of the conductive ball group (4); along the Y direction, the dimension of the limiting groove (21) is greater than the diameter of a single conductive ball (41).

4. A patch unidirectional tilt switch according to claim 3, characterized in that, The limiting plate (2) is also provided with a limiting connecting line group (22) for connecting external circuits. Along the X direction, the limiting connecting line group (22) is connected to the same side of the limiting groove (21).

5. A patch unidirectional tilt switch according to claim 4, characterized in that, The second connecting plate (3) has a second electrode plate (31) for connecting an external circuit on the side facing the limiting plate (2). The second electrode plate (31) is contacted by the conductive ball (41). Along the X direction, the length of the second electrode plate (31) does not exceed half the length of the limiting groove (21). Along the Y direction, the width of the second electrode plate (31) is smaller than the width of the limiting groove (21).

6. A patch unidirectional tilt switch according to claim 5, characterized in that, The second connecting plate (3) is provided with a second connecting line group (34) for connecting external circuits on the side facing the limiting plate (2); along the X direction, the second connecting line group (34) is located on the same side of the second connecting plate (3) and connected to the second electrode plate (31), and the second connecting line group (34) and the limiting connecting line group (22) are located opposite each other on both sides of the patch unidirectional tilt switch.

7. A patch unidirectional tilt switch according to claim 6, characterized in that, The second connecting plate (3) has a first pad (32) and a second pad (33) for connecting external circuits on the side away from the limiting plate (2). The first pad (32) and the second pad (33) are arranged opposite to each other on both sides of the second connecting plate (3) along the X direction, and the first pad (32) and the second pad (33) are spaced apart. The second electrode plate (31) is arranged on the side close to the first pad (32), and the second electrode plate (31) is connected to the first pad (32) through the second connecting line group (34).

8. A patch unidirectional tilt switch according to claim 7, characterized in that, Along the X direction, there are also a first main conductive channel (51) and a second main conductive channel (52) disposed on both sides. The first main conductive channel (51) and the second main conductive channel (52) are respectively connected to the first pad (32) and the second pad (33) to conduct the circuit. One end of the second connecting line group (34) is connected to the first main conductive channel (51), and the other end is connected to the second electrode sheet (31). One end of the limiting connecting line group (22) is connected to the second main conductive channel (52), and the other end is connected to the limiting groove (21).

9. A patch unidirectional tilt switch according to claim 8, characterized in that, The first connecting plate (1) facing the limiting plate (2) has a first electrode plate (11) for conducting external circuits. The first electrode plate (11) is contacted by the conductive ball (41). Along the X direction, the length of the first electrode plate (11) does not exceed half the length of the limiting groove (21). Along the Y direction, the width of the first electrode plate (11) is smaller than the width of the limiting groove (21).

10. A patch unidirectional tilt switch according to claim 9, characterized in that, The first connecting plate (1) is also provided with a first connecting wire group (12) for connecting external circuits; along the X direction, the first connecting wire group (12) is connected on the same side of the first connecting plate (1), and the first connecting wire group (12) and the second connecting wire group (34) are arranged on the same side of the patch unidirectional tilt switch; one end of the first connecting wire group (12) is connected to the first main conductive channel (51), and the other end is connected to the first electrode sheet (11).

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