Non-contact four-way output switch

Abstract

The utility model relates to the technical field of electronic switches, and particularly discloses a non-contact four-way output switch, which comprises a magnet for generating a magnetic field, a pressing structure for driving the magnet to move up and down, and a switch chip positioned below the magnet, wherein the switch chip is internally provided with two Hall circuits, and each Hall circuit is correspondingly provided with two output terminals. The non-contact four-way output switch provided by the utility model can effectively solve the problems that the existing Hall switch is high in occupied space and cost and poor in signal output stability when being used for multi-way output on the premise of ensuring four-way output.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic switches, in particular to a non-contact four-way output switch. Background Art

[0002] A Hall switch generally includes a magnet for generating a magnetic field, a pressing structure for driving the magnet to move up and down, and a switch chip located under the magnet for detecting changes in the magnetic field.

[0003] Typically, when the magnet is farther from the switch chip, the magnetic field detected by the switch chip is weaker. When the push mechanism is pressed, the magnet is closer to the switch chip, and the magnetic field detected by the switch chip is stronger. Depending on the strength of the magnetic field, the switch chip outputs different electrical signals, thereby achieving on-off control.

[0004] Furthermore, the switch chip generally includes a Hall circuit for sensing a magnetic field signal and a package for packaging the Hall circuit.

[0005] Existing switch chips on the market typically contain only one Hall effect circuit within their package, and each Hall effect circuit can only be configured with one set of output terminals. Therefore, when two or more sets of output terminals are required, multiple Hall effect switches are often required. However, using multiple Hall effect switches can lead to the following problems:

[0006] ① Each Hall switch contains an independent magnet, pressing structure, and switch chip, which not only increases the material cost but also greatly increases the space occupied, which is not conducive to the miniaturization design of the product;

[0007] ② Each Hall switch has a built-in magnet. The switch chip is easily interfered with by the magnets inside other Hall switches in nearby positions, resulting in poor signal output stability.

[0008] Therefore, it is necessary to improve the existing Hall switch to solve the problem that when it is used for multi-channel output, it not only occupies a large space and has a high cost, but also has poor signal output stability.

[0009] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Utility Model Content

[0010] One purpose of the present invention is to provide a non-contact four-way output switch, which can effectively solve the problem that the existing Hall switch not only occupies a large space and has a high cost when used for multiple outputs, but also has poor signal output stability.

[0011] To achieve the above objectives, the present invention provides a contactless four-way output switch, comprising a magnet for generating a magnetic field, a pressing structure for driving the magnet to move up and down, and a switch chip located below the magnet;

[0012] The switch chip has two built-in Hall circuits, and each Hall circuit is correspondingly provided with two output terminals.

[0013] Optionally, the pressing structure includes:

[0014] A switch housing, wherein the switch housing is provided with an inner space and a rod hole connecting the inner space to the outside of the switch housing;

[0015] A pressing member, wherein the upper portion of the pressing member extends outward through the rod hole and is sealed with the switch housing; the lower portion of the pressing member extends above the switch chip and is fixed to the magnet;

[0016] The switch housing includes a box-shaped housing with an inner space, a bracket cover assembly covering an opening of the box-shaped housing, and a sealing rubber sleeve installed on the bracket cover assembly;

[0017] Wherein, the bracket cover assembly is provided with a guide hole for the pressing member to slide through, and the sealing rubber sleeve is provided with a rod hole for the pressing member to pass through in a sealed manner.

[0018] Optionally, the rod hole and the pressing member are interference fit.

[0019] Optionally, the pressing member is provided with a positioning slot at a position corresponding to the rod hole for the sealing rubber sleeve to extend into.

[0020] Optionally, a longitudinal sliding groove is provided on the inner wall of the box-shaped shell, and a guide block sliding along the longitudinal sliding groove is provided on the bottom of the pressing member.

[0021] Optionally, a sound-generating torsion spring is installed in the switch housing;

[0022] The sound-generating torsion spring is configured to: be pushed by the pressing member and hit the switch housing to produce a sound.

[0023] Optional,

[0024] The sound-generating torsion spring comprises a fixed torsion arm fixed on the switch housing and a movable torsion arm extending outward to a side position of the pressing member;

[0025] The switch housing is provided with a sound-generating boss extending downward to above the movable torque arm;

[0026] The pressing piece is close to the position of the movable torque arm and protrudes outward to form a triangular boss for moving the movable torque arm so that the movable torque arm hits the sound-generating boss to generate sound.

[0027] Optionally, a spring is provided below the pressing member for driving the pressing member to slide upward relative to the switch housing.

[0028] Optionally, the Hall circuit further includes a power input terminal and a ground terminal.

[0029] Optionally, the two Hall circuits share a power input terminal and a ground terminal.

[0030] The beneficial effect of the present utility model is that it provides a contactless four-way output switch. When the pressing structure is pressed downward, the pressing structure drives the magnet downward toward the switch chip, so that the two Hall circuits in the switch chip can detect the magnetic field signal at the same time, and then the two Hall circuits respond synchronously, thereby realizing synchronous signal output of the four output terminals.

[0031] Therefore, the non-contact four-way output switch provided by the present invention can effectively solve the problem that the existing Hall switch not only occupies a large space and has a high cost when used for multiple outputs, but also has poor signal output stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 An exploded diagram of a contactless four-way output switch provided in an embodiment;

[0034] Figure 2 A cross-sectional exploded diagram of a contactless four-way output switch provided in an embodiment;

[0035] Figure 3 A schematic diagram of the structure of a single Hall circuit provided in an embodiment;

[0036] Figure 4 A schematic cross-sectional view of a switch housing and a pressing member provided in an embodiment;

[0037] Figure 5 This is a schematic structural diagram of the triangular boss and movable torque arm provided in the embodiment.

[0038] In the picture:

[0039] 1. Switch housing; 101. Box-shaped housing; 102. Bracket cover assembly; 1021. Guide hole; 1022. Longitudinal slide groove; 1023. Sounding boss; 103. Sealing rubber sleeve; 1031. Rod hole;

[0040] 2. Switch chip; 201, Hall circuit; Vs, power input terminal; GND, ground terminal; OUT1, first output terminal; OUT2, second output terminal;

[0041] 3. Pressing piece; 301. Triangular boss;

[0042] 4. Magnet;

[0043] 5. Spring;

[0044] 6. Sounding torsion spring; 601. Movable torque arm. DETAILED DESCRIPTION

[0045] References to "embodiments" in this utility model mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the utility model. The appearance of the term "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or relevance to other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the various embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0046] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which the present invention belongs. The use of relevant terms herein is only for describing specific embodiments and is not intended to limit the present invention.

[0047] In the description of this utility model, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0048] In the present invention, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0049] Without further restrictions, in the present invention, the words "include", "comprise", "have" or other similar expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0050] Consistent with the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple," such as "multiple groups" and "multiple times," are also understood in this manner, unless otherwise specifically defined.

[0051] In the description of the embodiments of the present invention, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present invention or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present invention.

[0052] Unless otherwise expressly specified or limited, in the description of the embodiments of the present invention, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the technical field of the present invention, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0053] The utility model provides a non-contact four-way output switch, which is suitable for application scenarios where electrical signal output control is achieved through pressing operations. It can effectively solve the problems of existing Hall switches used for multi-way output, which not only occupy high space and cost, but also have poor signal output stability.

[0054] See also Figure 1 and Figure 2 In this embodiment, the contactless four-way output switch includes a magnet 4 for generating a magnetic field, a pressing structure for driving the magnet 4 to move up and down, and a switch chip 2 located below the magnet 4.

[0055] Optionally, the switch housing 1 includes a box-shaped housing 101 with an inner space, a bracket cover assembly 102 that seals the opening of the box-shaped housing 101, and a sealing rubber sleeve 103 installed on the bracket cover assembly 102; wherein, the bracket cover assembly 102 is provided with a guide hole 1021 for the pressing member 3 to slide through, and the sealing rubber sleeve 103 is provided with a rod hole 1031 for the pressing member 3 to pass through in a sealed manner.

[0056] The switch chip 2 is located in the space inside the shell, and the switch chip 2 has two built-in Hall circuits 201. Figure 3 Generally, the Hall circuit 201 includes a Hall sensor, a power input terminal Vs, a ground terminal GND, and two output terminals (referred to as a first output terminal OUT1 and a second output terminal OUT2). The specific structure of the Hall circuit 201 can adopt existing circuit structures and is not the focus of this embodiment, so it is not described in detail. In this embodiment, the two Hall circuits 201 share a power input terminal Vs and a ground terminal GND. Of course, in some other embodiments, each Hall circuit 201 may be provided with a separate power input terminal Vs and a separate ground terminal GND.

[0057] The upper portion of the pressing member 3 extends outward through the rod hole 1031 and is sealed with the switch housing 1 ; the lower portion of the pressing member 3 extends above the switch chip 2 ; and the magnet 4 is fixed to the bottom of the pressing member 3 .

[0058] A spring 5 is provided below the pressing member 3 for driving the pressing member 3 to slide upward relative to the switch housing 1 .

[0059] In the contactless four-way output switch provided in this embodiment, under normal circumstances, the spring 5 pushes the pressing rod upward, causing the pressing rod to drive the magnet 4 upward to a position away from the switch chip 2. When the pressing member 3 is pressed downward, the pressing member 3 drives the magnet 4 downward toward the switch chip 2, so that the two Hall circuits 201 in the switch chip 2 can simultaneously detect the magnetic field signal, thereby causing the two Hall circuits 201 to respond synchronously, thereby achieving synchronous signal output at the four output terminals.

[0060] On the one hand, since there is no actual pressing contact between the magnet 4 and the Hall circuit 201, the problem of unstable output signal and short service life caused by the existing pressing contact can be solved; on the other hand, the pressing member 3 is sealed with the switch housing 1, thereby improving the sealing performance between the pressing member 3 and the switch housing 1, thereby solving the problem of waterproofing and moisture-proofing.

[0061] Therefore, the non-contact four-way output switch provided by the present invention can solve the problems of unstable output signal, short service life, and poor waterproof and moisture-proof performance while ensuring four-way output.

[0062] In this embodiment, see Figure 4 The rod hole 1031 is relatively small, so it has an interference fit with the pressing member 3, thereby achieving a sealed connection between the rod hole 1031 and the sealing rubber sleeve 103. Furthermore, the pressing member 3 is provided with a positioning slot corresponding to the rod hole 1031 for the sealing rubber sleeve 103 to extend into, thereby ensuring the relative positioning between the rod hole 1031 and the pressing member 3.

[0063] In this embodiment, the inner wall of the box-shaped shell 101 is provided with a longitudinal slide groove 1022, and the bottom of the pressing member 3 is provided with a guide block sliding along the longitudinal slide groove 1022. The guide block slides in the longitudinal slide groove 1022, thereby ensuring the smoothness and stability of the upper and lower interaction of the pressing rod.

[0064] In this embodiment, a sound-generating torsion spring 6 is installed in the switch housing 1 . The sound-generating torsion spring 6 is configured to: be pushed by the pressing member 3 and strike the switch housing 1 to generate a sound.

[0065] Specifically, see Figure 5 The sound-generating torsion spring 6 includes a fixed torsion arm fixed on the switch housing 1 and a movable torsion arm 601 extending outward to the side position of the pressing member 3; the switch housing 1 is provided with a sound-generating boss 1023 extending downward to the top of the movable torsion arm 601; the pressing member 3 has a triangular boss 301 protruding outward near the movable torsion arm 601, which is used to move the movable torsion arm 601 so that the movable torsion arm 601 hits the sound-generating boss 1023 and produces a sound.

[0066] It should be noted that when the pressing rod is not pressed, the spring 5 drives the pressing rod upward to a higher position. At this time, the triangular boss 301 is located above the movable torque arm 601. When the pressing rod is pressed downward, the lower surface of the triangular boss 301 will push the movable torque arm 601 downward and away from the sound-generating boss 1023. When the pressing rod is pressed downward to the lowest position, the movable torque arm 601 breaks away from the lower surface of the triangular boss 301. After losing the support of the triangular boss 301, the movable torque arm 601 quickly rebounds upward and hits the sound-generating boss 1023, at which point a sound is emitted, and the user can tell by the sound that the pressing rod has been pressed in place. After releasing the hand, the spring 5 drives the pressing rod upward, and the upper surface of the triangular boss 301 pushes the movable torque arm 601 outward until the triangular boss 301 returns to the upper part of the movable torque arm 601, completing the reset.

[0067] In summary, the contactless four-way output switch provided in this embodiment has the following advantages:

[0068] ① When the pressing structure is pressed downward, the pressing structure drives the magnet downward toward the switch chip, which allows the two Hall circuits in the switch chip to detect the magnetic field signal at the same time, and then the two Hall circuits respond synchronously, thereby achieving synchronous signal output from the four output terminals, thereby solving the problem that the existing Hall switch used for multiple outputs not only occupies a large space and has a high cost, but also has poor signal output stability;

[0069] ② The sealed connection between the pressing member 3 and the switch housing 1 improves the sealing performance and solves the problem of waterproofing and moisture-proofing;

[0070] ③ The design of the sound-generating torsion spring 6 enables the switch to make a sound when pressed, and the user can confirm whether it has been pressed into place based on the sound.

[0071] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A contactless four-way output switch, characterized in that: It comprises a magnet (4) for generating a magnetic field, a pressing structure for driving the magnet (4) to move up and down, and a switch chip (2) located below the magnet (4); The switch chip (2) has two built-in Hall circuits (201), and each Hall circuit (201) is provided with two corresponding output terminals; The pressing structure includes: A switch housing (1), the switch housing (1) being provided with an inner housing space and a rod hole (1031) connecting the inner housing space to the outside of the switch housing (1); A pressing member (3), the upper portion of the pressing member (3) extending outward through the rod hole (1031) and being sealedly connected to the switch housing (1); the lower portion of the pressing member (3) extending to above the switch chip (2) and being fixedly connected to the magnet (4); The switch housing (1) comprises a box-shaped housing (101) provided with the inner space, a bracket cover assembly (102) for sealing the opening of the box-shaped housing (101), and a sealing rubber sleeve (103) mounted on the bracket cover assembly (102); The bracket cover assembly (102) is provided with a guide hole (1021) for the pressing member (3) to slide through, and the sealing rubber sleeve (103) is provided with a rod hole (1031) for the pressing member (3) to pass through in a sealed manner.

2. The contactless four-way output switch according to claim 1, characterized in that: The rod hole (1031) and the pressing member (3) are interference fit.

3. The contactless four-way output switch according to claim 2, characterized in that: The pressing member (3) is provided with a positioning slot at a position corresponding to the rod hole (1031) for the sealing rubber sleeve (103) to extend into.

4. The contactless four-way output switch according to claim 1, characterized in that: The inner wall of the box-shaped housing (101) is provided with a longitudinal sliding groove (1022), and the bottom of the pressing member (3) is provided with a guide block that slides along the longitudinal sliding groove (1022).

5. The contactless four-way output switch according to claim 1, characterized in that: A sound-generating torsion spring (6) is installed in the switch housing (1); The sound-generating torsion spring (6) is configured to be moved by the pressing member (3) to strike the switch housing (1) and generate a sound.

6. The contactless four-way output switch according to claim 5, characterized in that: The sound-generating torsion spring (6) comprises a fixed torsion arm fixed on the switch housing (1) and a movable torsion arm (601) extending outward to a side position of the pressing member (3); The switch housing (1) is provided with a sound-generating boss (1023) extending downward to above the movable torque arm (601); The pressing member (3) has a triangular boss (301) protruding outward from a position close to the movable torque arm (601) for moving the movable torque arm (601) so that the movable torque arm (601) strikes the sound-generating boss (1023) to generate sound.

7. The contactless four-way output switch according to claim 1, characterized in that: A spring (5) is provided below the pressing member (3) for driving the pressing member (3) to slide upward relative to the switch housing (1).

8. The contactless four-way output switch according to claim 1, characterized in that: The Hall circuit (201) further includes a power input terminal (Vs) and a ground terminal (GND).

9. The contactless four-way output switch according to claim 8, characterized in that: The two Hall circuits (201) share a power input terminal (Vs) and a ground terminal (GND).

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