Synchronous microswitch

Abstract

The application discloses a synchronous microswitch, which comprises a shell, a plurality of pins arranged in the shell, a plurality of elastic conductive sheets matched with the pins, and a pressing piece for pressing and triggering the conductive sheets. The number of the conductive sheets is at least two, and each of the conductive sheets corresponds to one pin. A balance guide block is arranged between the pressing piece and the conductive sheets. The balance guide block is rotatably abutted or mounted on the pressing piece. The balance guide block is used for balancing the elastic force of each conductive sheet. When the pressing piece is pressed, the balance guide block is rotated to balance the stress of each conductive sheet and synchronously trigger the conductive sheets. A blocking block for blocking two conductive sheets is arranged in the shell and corresponds to the position between the two conductive sheets. The position of the blocking block corresponds to the position where the balance guide block is abutted or mounted on the pressing piece. The application can control the on-off of multiple circuits at the same time, improve the synchronization accuracy and reduce the triggering time difference.

Description

Technical Field

[0001] This invention relates to micro switches, specifically synchronous micro switches. Background Technology

[0002] Existing microswitches consist of elastic contacts, pins, and pressing elements. The pressing elements trigger the elastic contacts, and the elastic contacts connect multiple pins to achieve circuit on / off control.

[0003] Current microswitch designs typically have one circuit connecting to one or more circuits. However, in practice, it's often necessary to activate multiple circuits simultaneously with a single switch button. This requires using multiple existing microswitches, where a single button triggers multiple microswitches, which in turn trigger their respective circuits. This triggering method suffers from low synchronization accuracy; a time difference exists between the triggering of multiple microswitches, resulting in time lags in circuit startup or signal generation. This is unsuitable for applications with high signal synchronization requirements, necessitating the use of alternative synchronous switches. However, microswitches are small and inexpensive, making alternative synchronous switches problematic due to their drawbacks.

[0004] However, simply using one button to trigger multiple elastic contacts still results in a time difference between their sequential triggering, leading to poor synchronization. Although it can be applied to some situations, it is still insufficient for working conditions with higher synchronization requirements. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a synchronous micro switch that can simultaneously control the on / off state of multiple circuits, improve synchronization accuracy, and reduce trigger time difference.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a synchronous micro switch, comprising a housing, a plurality of pins disposed in the housing, a flexible conductive sheet disposed in the housing for cooperating with the pins, and a pressing member for pressing down to trigger the conductive sheet; the conductive sheet is at least two in number and corresponds to a plurality of pins respectively; a balancing guide block is provided between the pressing member and the conductive sheet, and a protrusion is provided on the balancing guide block at the position corresponding to the conductive sheet for abutting and pressing down the conductive sheet; the balancing guide block is rotatably abutting against or mounted on the pressing member, and the balancing guide block is used to balance the elastic force of each conductive sheet; when the pressing member is pressed down, the rotation of the balancing guide block balances the force on each conductive sheet and synchronously triggers a plurality of conductive sheets. A blocking block is provided in the housing at the position corresponding to the position where the balancing guide block abuts against or mounts the pressing member, for blocking the two conductive sheets; the position of the blocking block corresponds to the position where the balancing guide block abuts against or mounts the pressing member, thereby limiting the maximum movement range of the balancing guide block and protecting the conductive sheet.

[0007] As a further improvement of the present invention, a groove is provided on the pressing member at the position corresponding to the balance guide block, for the balance guide block to rotate and abut or be installed upright, and to restrict the balance guide block from moving in the horizontal direction.

[0008] As a further improvement of the present invention, the pressing member has a cavity at the position corresponding to the balance guide block, for the balance guide block to rotate and swing.

[0009] As a further improvement of the present invention, the balance guide block is provided with a connecting post at the position corresponding to the groove, and the connecting post and the groove are arranged in pairs and distributed on both sides of the balance guide block.

[0010] As a further improvement of the present invention, one side of the connecting post corresponding to the groove is arc-shaped, and the shape of the groove is adapted to the arc shape, and the connecting post abuts against or is installed in the groove.

[0011] As a further improvement of the present invention, one side of the connecting post corresponding to the groove is triangular, and one of the protruding corners corresponds to the groove. The cross-section of the groove is triangular so that the connecting post can abut against it. The recessed corner of the groove corresponds to the protruding corner of the connecting post, and the angle of the recessed corner of the groove is greater than the angle of the protruding corner of the connecting post.

[0012] As a further improvement of the present invention, a cover plate is provided on the housing, the cover plate is installed on the housing, a through hole is provided on the cover plate, and a protrusion is provided on the pressing member at the position corresponding to the through hole for cooperating with external parts or hand pressing down. The shape of the protrusion is adapted to the through hole, and the through hole is used to guide the axial movement of the protrusion.

[0013] The beneficial effects of this invention are: it can achieve a high degree of synchronization accuracy, and can use a balancing guide block to balance the elastic force between the two conductive sheets, so that the pressure on the two conductive sheets is the same when the conductive sheets are triggered, thereby improving the synchronization accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the present invention.

[0017] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the pressing component and the balance guide block of the present invention.

[0019] Figure 6 This is a schematic diagram showing the planar fit between the pressing member and the connecting column of the present invention;

[0020] Figure 7 This is a schematic diagram of the triangular structure of the groove in this invention;

[0021] Figure 8 This is a schematic diagram of the triangular structure of the connecting column of the present invention;

[0022] Figure 9 This is a schematic diagram of the shell and barrier block structure of the present invention.

[0023] Reference numerals: 1. Housing; 11. Barrier block; 2. Pin; 3. Conductive sheet; 4. Pressing element; 41. Groove; 42. Cavity; 43. Protrusion; 5. Balance guide block; 51. Protrusion; 52. Connecting post; 6. Cover plate; 61. Through hole. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0025] Reference Figures 1-9 As shown,

[0026] A synchronous micro switch includes a housing 1, a plurality of pins 2 disposed in the housing 1, a conductive sheet 3 disposed in the housing 1 for cooperating with the pins 2 and having elasticity, and a pressing member 4 for pressing down to trigger the conductive sheet 3; the number of conductive sheets 3 is at least two, and each corresponds to a plurality of pins 2; a balancing guide block 5 is provided between the pressing member 4 and the conductive sheet 3, and a protrusion 51 is provided on the balancing guide block 5 at the position corresponding to the conductive sheet 3 for abutting and pressing down the conductive sheet 3; the balancing guide block 5 is rotatably abutting against or mounted on the pressing member 4; the balancing guide block 5 is used to balance the elastic force of each conductive sheet 3; when the pressing member 4 is pressed down, the force on each conductive sheet 3 is balanced by the rotation of the balancing guide block 5 and the plurality of conductive sheets 3 are triggered synchronously.

[0027] This solution differs from directly using a pressing element 4 to simultaneously trigger two conductive plates 3. Instead, a balancing guide block 5 is placed between the pressing element 4 and the conductive plates 3. Because the conductive plates 3 are elastic, after the protrusion 51 of the balancing guide block 5 contacts the conductive plates 3, it rotates to balance the forces at both ends. First, it should be noted that, as is well known to those skilled in the art, since the conductive plates 3 used in the assembly of microswitches are identical, the specifications of the multiple conductive plates 3 are also the same, including the elastic force value of the conductive plates 3 and the height of the spring providing the elastic force. Under this common knowledge, the triggering principle of this solution is as follows:

[0028] Reference Figures 1-8As shown, when the pressing member 4 is pressed down, the pressing member 4 transmits the force to the balance guide block 5. As the pressing member 4 is pressed down, the balance guide block 5 is also pressed down. At this time, the force is transmitted to the conductive sheet 3. Pressing down on the conductive sheet 3 causes it to deform. Due to the deformation of the conductive sheet 3, an elastic force is generated and acts on the balance guide block 5. Since the balance guide block 5 is in a rotatable state, it will balance the force on both ends by rotating, thereby maintaining the force balance of the two conductive sheets 3 until the two conductive sheets 3 are triggered together, thus achieving a synchronous triggering effect.

[0029] In addition, a blocking block 11 is provided in the housing between the two conductive sheets 3 to block the two conductive sheets 3. The position of the blocking block 11 corresponds to the position of the balance guide block 5 abutting or the position of the pressing member 4, so as to limit the maximum movement range of the balance guide block 5 and protect the conductive sheets 3.

[0030] Reference Figure 9 As shown, the barrier block 11 can isolate the two conductive sheets 3, and after the barrier is formed, a space can be formed for filling the conductive sheet 3. Moreover, the barrier block 11 can limit the maximum range of movement of the balance guide block 5. When the balance guide block 5 moves toward the conductive sheet 3 as the pressing member 4 presses down, it can protect the conductive sheet 3 and prevent excessive compression from damaging the conductive sheet 3 or causing irreversible deformation.

[0031] To ensure more stable rotation of the balance guide block 5, a groove 41 is provided on the pressing member 4 corresponding to the position of the balance guide block 5. This groove allows the balance guide block 5 to rotate and abut against the groove or be installed upright, and restricts the horizontal movement of the balance guide block 5. (Refer to...) Figure 3 , 4 As shown in Figures 5, 7, and 8.

[0032] By using the groove 41 for horizontal positioning, the horizontal sliding of the balance guide block 5 during the balancing process can be prevented, which would lead to the failure or weakening of the balancing effect. The groove 41 can be open, allowing the balance guide block 5 to directly abut against the inside, or it can be closed, allowing the balance guide block 5 to be installed inside and rotated. This installation method has a snap-fit ​​function, similar to the connection between an arc-shaped snap-fit ​​groove and a cylindrical connector, so that the connector can be inserted into the snap-fit ​​groove and then rotated.

[0033] In addition, as an optimization, the pressing member 4 has a cavity 42 at the position corresponding to the balance guide block 5, which is used to allow the balance guide block 5 to rotate and swing.

[0034] By setting the cavity 42 inside the pressing member 4, the balance guide block 5 can have room to move within the cavity 42, thus reducing the size of the micro switch and avoiding a significant increase in the size of the micro switch due to the addition of the balance guide block 5.

[0035] Further settings are being implemented, please refer to... Figure 3 , 4 As shown in Figures 5, 7, and 8, a connecting post 52 is provided at the position corresponding to the groove 41 of the balance guide block 5. The connecting post 52 and the groove 41 are arranged in pairs and distributed on both sides of the balance guide block 5. The paired arrangement ensures that both sides of the balance guide block 5 have a connecting post 52 and a groove 41, and the cooperation between the two makes the rotation of the balance guide block 5 more stable.

[0036] The connection between the connecting post 52 and the groove 41 can be implemented using the following methods:

[0037] 1. The connecting post 52 has an arc-shaped side corresponding to the groove 41, and the shape of the groove 41 is adapted to this arc shape. The connecting post 52 abuts against or is installed in the groove 41. (Refer to...) Figure 3 , 4 As shown in Figure 5.

[0038] 2. The connecting post 52 has a triangular shape on one side corresponding to the groove 41, and one corner of the protrusion 51 corresponds to the groove 41. The cross-section of the groove 41 is triangular to allow the connecting post 52 to abut against it. The recessed corner of the groove 41 corresponds to the corner of the protrusion 51 of the connecting post 52, and the angle of the recessed corner of the groove 41 is greater than the angle of the protrusion 51 of the connecting post 52. (Refer to...) Figure 8 As shown.

[0039] 3. The connecting post 52 has an arc-shaped side corresponding to the groove 41, and the groove 41 is triangular in shape. The connecting post 52 abuts against or is installed in the groove 41. (Refer to...) Figure 7 As shown.

[0040] The difference between the above implementation schemes lies in the different shapes of the groove 41 and the connecting post 52. Scheme 1 uses a smooth arc shape, Scheme 2 uses a triangle to form a V-shaped groove 41, and Scheme 3 uses a triangular groove 41 to match the smooth connecting post 52. One of these schemes can be implemented according to different processing methods.

[0041] The arc-shaped design is more suited to rotational fitting, making it easier for the connecting post 52 and the groove 41 to be snapped together. The triangular design, on the other hand, has a smaller contact area and is more suited to oscillating rotation.

[0042] Since there is always contact between the connecting post 52 and the groove 41, there will be friction. In order to reduce the impact of the pressing part 4 on the balance guide block 5 when it is pressed down, a cover plate 6 is provided on the housing 1. The cover plate 6 is installed on the housing 1 and a through hole 61 is provided on the cover plate 6. The pressing part 4 is provided with a protrusion 43 at the position corresponding to the through hole 61 for cooperating with external parts or hand pressing down. The shape of the protrusion 43 is adapted to the through hole 61, and the through hole 61 is used to guide the axial movement of the protrusion 43.

[0043] The cover plate 6 can be installed with the housing 1 by snap-fit, which facilitates production and installation. The through hole 61 on the cover plate 6 allows the pressing part 4 to move vertically in the axial direction, which has a guiding function and can reduce the swaying of the pressing part 4, thus reducing the friction between the swaying of the pressing part 4 and the balance guide block 5 during the pressing process.

[0044] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A synchronous micro switch, comprising a housing, a plurality of pins disposed in the housing, a flexible conductive sheet disposed in the housing for cooperating with the pins, and a pressing member for pressing down to trigger the conductive sheet; characterized in that, The number of conductive sheets is at least two, and each corresponds to several pins; there is a balance guide block between the pressing member and the conductive sheet, and the balance guide block is provided with a protrusion at the position corresponding to the conductive sheet for abutting and pressing down the conductive sheet. The balance guide block can be rotatably abutted against or installed on the pressing member. The balance guide block is used to balance the elastic force of each conductive sheet. When the pressing member is pressed down, the rotation of the balance guide block balances the force on each conductive sheet and triggers several conductive sheets simultaneously. The housing is provided with a blocking block between the two conductive sheets at the position between them. The position of the blocking block corresponds to the position where the balance guide block abuts or the pressing element is installed, so as to limit the maximum movement range of the balance guide block and protect the conductive sheets. The pressing component has a groove at the position corresponding to the balance guide block, which is used for the balance guide block to rotate and abut or be installed, and to restrict the balance guide block from moving in the horizontal direction. The pressing component has a cavity at the position corresponding to the balance guide block, which is used to allow the balance guide block to rotate and swing. The balance guide block is provided with a connecting post at the position corresponding to the groove, and the connecting post and the groove are provided in pairs and distributed on both sides of the balance guide block. The housing is provided with a cover plate, which is installed on the housing. The cover plate is provided with a through hole. The pressing component is provided with a protrusion at the position corresponding to the through hole for cooperating with external parts or hand pressing. The shape of the protrusion is adapted to the through hole, and the through hole is used to guide the axial movement of the protrusion.

2. The synchronous micro switch according to claim 1, characterized in that, The connecting post has an arc shape on one side of the groove, and the shape of the groove is adapted to the arc shape. The connecting post abuts against or is installed in the groove.

3. The synchronous micro switch according to claim 1, characterized in that, The connecting post has a triangular shape on one side of the groove, and one of its protruding corners corresponds to the groove. The cross-section of the groove is triangular to allow the connecting post to abut against it. The recessed corner of the groove corresponds to the protruding corner of the connecting post, and the angle of the recessed corner of the groove is greater than the angle of the protruding corner of the connecting post.

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