Intelligent switch based on lever principle

Abstract

The application relates to a rear-mounted intelligent switch based on a lever principle. The rear-mounted intelligent switch based on the lever principle comprises a shell connected with a control switch, a controller, a planetary motor fixed in the shell and a rotating body connected with the planetary motor; a swing rod structure is arranged on the outer wall of the rotating body; a through hole is arranged on the shell for the swing rod structure to extend out; when the rotating body is in a first state, the swing rod structure extends out of the through hole; when the rotating body is in a second state, the swing rod structure is withdrawn into the shell; the controller is arranged in the shell and connected with the planetary motor, and is used for controlling the rotation of the planetary motor; the swing rod structure comprises a lever; the distance between the contact stress point of the lever and the rotating body and the support point of the lever is greater than the distance between the contact stress point of the lever and the control switch and the support point of the lever; the rotating body drives the lever to press the switch.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of switch, more particularly, to a rear-mounted intelligent switch based on lever principle. BACKGROUND

[0002] The word switch is explained as opening and closing. It also refers to an electronic component that can make a circuit open, interrupt the current or make it flow to other circuits. The most common switch, i.e. control switch, is a mechanical and electrical device operated by people, which has one or several electronic contacts. The "closure" of the contact means that the electronic contact is conductive, allowing current to flow; the "open circuit" of the switch means that the electronic contact is not conductive, forming an open circuit and not allowing current to flow.

[0003] For the existing control switch, a recess is often needed to be opened on the wall surface for installing the switch. The surface of the control switch is provided with a button, and people control the state of the switch through the button.

[0004] However, with the progress of science and technology and the development of society, people are not satisfied with the mode of pressing control of the existing control switch. Therefore, an intelligent switch is invented, which replaces the existing control switch and is internally provided with a controller for receiving a wireless signal and controlling whether the electronic contact in the control switch is conductive based on the wireless signal.

[0005] However, it is very inconvenient to replace the control switch with the intelligent switch in most families. SUMMARY

[0006] In order to at least partially overcome the problems in the related art, the purpose of the present application is to provide a rear-mounted intelligent switch based on lever principle to solve the problems in the prior art.

[0007] The present application provides a rear-mounted intelligent switch based on lever principle, which comprises a housing connected with a control switch, a controller, a planetary motor fixed in the housing, and a rotating body connected with the planetary motor.

[0008] A swing rod structure is arranged on the outer wall of the rotating body.

[0009] A through hole is arranged on the housing for the swing rod structure to extend out of; when the rotating body is in a first state, the swing rod structure extends out of the through hole; when the rotating body is in a second state, the swing rod structure is withdrawn into the housing;

[0010] The controller is arranged in the housing and connected with the planetary motor, and is used for controlling the rotation of the planetary motor.

[0011] The swing rod structure comprises a lever.

[0012] The distance between the contact force point of the lever and the rotating body and the fulcrum of the lever is greater than the distance between the contact force point of the lever and the control switch and the fulcrum of the lever.

[0013] The rotating body drives the lever to press the switch.

[0014] Optionally, the fulcrum position of the lever is provided with a fixed column.

[0015] The lever is rotatably fixed on the shell through the fixed column.

[0016] Optionally, the shell comprises a lever fixing shell; the lever fixing shell comprises two left-right symmetrical sub-lever fixing shells.

[0017] Each of the sub-lever fixing shells is provided with a through hole matching the protrusion of the fixed column, for fixing the lever.

[0018] Optionally, the shell comprises a lever fixing shell base for placing the lever fixing shell.

[0019] Optionally, the rotating body comprises a switch seesaw; the side surface of the switch seesaw is provided with a swing arm.

[0020] The swing arm drives the lever to move.

[0021] Optionally, the swing rod structure further comprises an elastic member.

[0022] One end of the elastic member is fixed on the shell, and the other end is tightly pressed against the lever, so that the lever is attached to the swing arm.

[0023] Optionally, the elastic member is a torsion spring.

[0024] Optionally, the side surface of the switch seesaw is provided with two swing arms symmetrically.

[0025] The number of swing rod structures is the same as the number of swing arms; the swing rod structure corresponds to the swing arm one by one.

[0026] Optionally, one planetary motor, one rotating body connected with the planetary motor and a swing rod structure arranged on the outer side wall of the rotating body constitute a mechanical pressing group.

[0027] The rear-mounted intelligent switch based on the lever principle comprises a plurality of mechanical pressing groups.

[0028] Among them, the outer side wall of one rotating body can be provided with one or two swing rod structures.

[0029] Optionally, the lever comprises a flat power arm and a resistance arm, and a spindle-shaped fulcrum reinforcing structure.

[0030] The technical solutions provided by the present application can include the following beneficial effects:

[0031] The present application provides a rear-mounted intelligent switch based on the principle of lever. The rear-mounted intelligent switch based on the principle of lever can be installed on the control switch. The rear-mounted intelligent switch based on the principle of lever is internally provided with a controller, which can accept external control signals to achieve control operations similar to existing intelligent switches. When the controller receives external control signals, it will control the planetary motor to rotate and drive the swing rod structure to extend out of the through hole or retract from the through hole. In this way, the rear-mounted intelligent switch based on the principle of lever can receive external control signals, simulate the operation of pressing the button of the control switch based on the external control signals, and achieve the purpose of intelligently controlling various electrical appliances at home. In this way, without changing the original control switch at home, the rear-mounted intelligent switch based on the principle of lever achieves the effect of using an intelligent switch.

[0032] Further, the noise of the planetary motor is large when the torque is large, and the noise is small when the torque is small, and the power consumption is saved. It should be understood that the reduction ratio of a small planetary motor with a diameter of 10MM can only be 1 / 171, which limits the maximum output torque of the motor. The larger the output torque of the motor, the louder the noise. In order to increase the torque of the rear-mounted intelligent switch, the swing rod structure is designed based on the principle of lever in the scheme provided by the present application. The swing rod structure includes a lever. The distance between the contact force point of the lever and the fulcrum of the lever and the distance between the contact force point of the lever and the fulcrum of the lever are greater than the distance between the contact force point of the lever and the fulcrum of the lever. The rotating body drives the lever to press the switch. In this way, when the planetary motor drives the swing rod structure to rotate and makes the swing rod structure press the button of the control switch, the part between the contact force point of the lever and the fulcrum of the lever and the rotating body is the power arm. The part between the contact force point of the lever and the fulcrum of the lever and the control switch is the resistance arm. Because the length of the power arm of the lever is greater than the length of the resistance arm, the purpose of saving power of the motor can be achieved, the torque of the planetary motor is reduced, and the noise of the planetary motor is smaller and the power consumption is saved.

[0033] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings incorporated in the specification and forming a part thereof illustrate embodiments consistent with the present application and together with the description are used to explain the principles of the application.

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0036] Figure 1 Figure 1 is a schematic diagram of a rear-mounted intelligent switch structure based on the principle of a lever according to some example embodiments;

[0037] Figure 2 Figure 1 is a schematic diagram of a rear-mounted intelligent switch structure based on the principle of a lever according to some example embodiments;

[0038] Figure 3 Figure 1 is a schematic diagram of a rear-mounted intelligent switch structure based on the principle of a lever according to some example embodiments;

[0039] Figure 4 Figure 1 is a schematic diagram of a rear-mounted intelligent switch structure based on the principle of a lever according to some example embodiments;

[0040] Figure 5 Figure 1 is a schematic diagram of a rear-mounted intelligent switch structure based on the principle of a lever according to some example embodiments;

[0041] In the figure: 1 - shell, 11 - bottom shell, 12 - upper shell, 13 - motor base, 14 - motor fixing shell, 15 - lever fixing shell, 2 - controller, 3 - planetary motor, 4 - swing lever structure, 41 - lever, 42 - elastic member, 5 - rotating body. DETAILED DESCRIPTION

[0042] The example embodiments will be described in detail below with reference to the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following example embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of apparatuses or methods consistent with some aspects of the present application.

[0043] Firstly, the application scenario of the embodiment of the present application is described. The existing control switch often needs to open a recess on the wall surface for installing the switch. The surface of the control switch is provided with a button. People control the state of the switch through the button. However, with the progress of science and technology and the development of society, people are not satisfied with the mode of pressing control of the existing control switch. Therefore, the intelligent switch is invented. The intelligent switch replaces the existing control switch. The inside of the intelligent switch is provided with a controller for receiving a wireless signal and controlling whether the electronic contact in the control switch is conductive or not. However, it is very inconvenient to replace the control switch with the intelligent switch in most families.

[0044] The present embodiment provides a rear-mounted intelligent switch based on the principle of lever. When a user wants to replace the original control switch in the home with an intelligent switch, the rear-mounted intelligent switch based on the principle of lever provided by the present application can be used. The rear-mounted intelligent switch based on the principle of lever is installed on the control switch. By the controller and related mechanical structure inside the rear-mounted intelligent switch based on the principle of lever, the button of the control switch is pressed to control the on-off state of the original control switch, thereby controlling the home appliances.

[0045] To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0046] Hereinafter, the embodiments will be described with reference to the accompanying drawings. In addition, the embodiments shown below do not have any limiting effect on the invention content recited in the claims. In addition, the entire content of the configuration represented by the following embodiments is not limited to what is necessary as a solution to the invention recited in the claims.

[0047] Embodiment

[0048] Reference Figure 1 and Figure 2 The present embodiment provides a rear-mounted intelligent switch based on the principle of lever, which includes a housing 1 connected with a control switch, a controller 2, a planetary motor 3 fixed in the housing 1, and a rotating body 5 connected with the planetary motor 3.

[0049] A swing rod structure 4 is arranged on the outer side wall of the rotating body 5.

[0050] A through hole is arranged on the housing 1 for the swing rod structure 4 to extend out of the through hole. When the rotating body 5 is in a first state, the swing rod structure 4 extends out of the through hole. When the rotating body 5 is in a second state, the swing rod structure 4 is withdrawn into the housing 1.

[0051] The controller 2 is arranged in the shell 1 and connected with the planetary motor 3 for controlling the rotation of the planetary motor 3;

[0052] The swing rod structure 4 comprises a lever 41;

[0053] The distance between the contact force point of the lever 41 and the rotation body 5 and the fulcrum point of the lever 41 is greater than the distance between the contact force point of the lever 41 and the control switch and the fulcrum point of the lever 41;

[0054] The rotation body 5 drives the lever 41 to press the switch.

[0055] The rear-mounted intelligent switch based on the lever principle provided in the application can be installed on the control switch. The rear-mounted intelligent switch based on the lever principle is internally provided with a controller which can receive external control signals to achieve the control operation similar to the existing intelligent switch. When the controller receives the external control signal, the rotation of the planetary motor is controlled, and the rotation of the planetary motor drives the rotation of the rotation body. When the rotation body rotates to the first state, the swing rod structure extends out of the through hole. The button of the control switch is pressed. When the rotation body rotates to the second state, the swing rod structure is withdrawn from the through hole. In this way, the rear-mounted intelligent switch based on the lever principle can receive the external control signal, simulate the operation of pressing the button of the control switch based on the external control signal, and achieve the purpose of intelligently controlling various electrical appliances at home. In this way, without changing the original control switch at home, the effect of using the intelligent switch is achieved through the rear-mounted intelligent switch based on the lever principle.

[0056] Further, the noise of the planetary motor is large when the torque is large, and the noise is small and the power is saved when the torque is small. It needs to be understood that the maximum reduction ratio of a small planetary motor with a diameter of 10MM can only be 1 / 171. Due to this limitation, the motor needs to have a maximum output torque. The larger the output torque of the motor, the larger the noise. In order to increase the torque of the rear-mounted intelligent switch, the swing rod structure based on the lever principle is designed in the scheme provided in the application. The swing rod structure comprises a lever; the distance between the contact force point of the lever and the rotation body and the fulcrum point of the lever is greater than the distance between the contact force point of the lever and the control switch and the fulcrum point of the lever; and the rotation body drives the lever to press the switch. In this way, when the planetary motor drives the swing rod structure to rotate, the lever and the rotation body are in contact at the force receiving point and the fulcrum point of the lever. The part between the contact force point of the lever and the rotation body and the fulcrum point of the lever is the power arm; the part between the contact force point of the lever and the control switch and the fulcrum point of the lever is the resistance arm; and because the length of the power arm of the lever is greater than the length of the resistance arm, the purpose of saving power of the motor is achieved, the torque of the planetary motor is reduced, and the planetary motor operates with smaller noise and saves power.

[0057] Further, referring to Figure 4 and Figure 5 , the fulcrum position of the lever 41 is provided with a fixed column; the lever 41 is rotatably fixed on the shell 1 through the fixed column. In this way, a fulcrum can be provided for the fulcrum position.

[0058] Specifically, the shell 1 includes a lever 41 fixing shell 15; the lever 41 fixing shell 15 includes two symmetrically left and right sub-lever 41 fixing shells 15; each of the sub-lever 41 fixing shells 15 is provided with a through hole matching the protrusion of the fixed column for fixing the lever 41. The shell 1 includes a lever 41 fixing shell 15 base for placing the lever 41 fixing shell 15.

[0059] In this way, not only can the lever 41 be provided with a fulcrum. It is also more convenient during assembly. Only the lever 41 and the lever 41 fixing shell 15 need to be assembled first, and then the assembled lever 41 fixing shell 15 can be placed on the lever 41 fixing shell 15 base.

[0060] In practical applications, the button of the control switch can be a single-point pressing button, or a two-point pressing button. In order to make the rear-mounted intelligent switch based on the lever principle provided by the present application can control the two-point pressing button. The number of swing lever structures 4 can be two; the swing lever structures 4 are respectively arranged on both sides of the rotating body 5. The number of through holes is also two. When the rear-mounted intelligent switch based on the lever principle is installed on the control switch, the positions of the two through holes on the control switch correspond to the upper and lower pressing points of the button on the control switch. Specifically, the planetary motor can drive the rotating body to rotate clockwise, when the rotating body rotates to the first state, the swing lever structure on one side extends out of the through hole. Press one pressing point of the button of the control switch. The planetary motor drives the rotating body to rotate counterclockwise, when the rotating body rotates to the second state, the swing lever structure is withdrawn from the through hole. When the rotating body rotates to the first state again, the swing lever structure on the other side extends out of the through hole (it should be noted that the two white rods correspond one-to-one with the two through holes. The two through holes correspond one-to-one with the upper and lower two pressing points of the button.) Press the other pressing point of the button of the control switch. In this way, the clockwise rotation and counterclockwise rotation of the planetary motor can be adjusted to control which pressing point of the two pressing points of the button on the control switch is pressed.

[0061] It should be noted that the swing lever structures are respectively arranged on both sides of the rotating body. Specifically, the swing lever structures can be directly fixed on both sides of the rotating body, or the swing lever structures can be in contact with the rotating body through mechanical structures and move under the drive of the rotating body to extend out of the through hole or withdraw into the shell.

[0062] Further, the rotating body 5 comprises a switch seesaw; the side of the switch seesaw is provided with a swing arm; the swing arm drives the lever 41 to move.

[0063] The swing rod structure 4 further comprises an elastic member 42.

[0064] One end of the elastic member 42 is fixed on the shell 1, and the other end is pressed against the lever 41, so that the lever 41 is attached to the swing arm.

[0065] In actual application, the swing arm can only drive the lever to move in one direction to press the button on the control switch. When the swing arm moves in the other direction, the lever will not move with the swing arm, so as to be retracted. In the scheme provided in the application, the elastic member is arranged to press one side of the lever against the swing arm. In this way, when the swing arm moves in the other direction, the lever will move with the swing arm under the extrusion of the elastic member, achieving the effect of retraction.

[0066] Specifically, the elastic member 42 is a torsion spring. The torsion spring is sleeved on the fixed column.

[0067] Further, the lever 41 comprises a flat power arm and a flat resistance arm, and a spindle-shaped fulcrum reinforcing structure.

[0068] The spindle-shaped fulcrum reinforcing structure can ensure the mechanical strength of the fulcrum and avoid damage due to excessive stress. When the elastic member is a torsion spring, the lever needs to give a place to the torsion spring due to space limitation. The part of the fixed column of the lever is relatively narrow, and the spindle-shaped fulcrum reinforcing structure is needed.

[0069] Further, in actual application, multiple buttons can be arranged on the same control switch. In order to enable the rear-mounted intelligent switch based on the lever principle to control multiple buttons on the same control switch, the rear-mounted intelligent switch based on the lever principle provided in the application is further improved as follows:

[0070] Specifically, in the rear-mounted intelligent switch based on the lever principle, one planetary motor 3, one rotating body connected with the planetary motor 3, and a swing rod structure 4 arranged on the outer side wall of the rotating body constitute a mechanical pressing group; wherein the outer side wall of one rotating body can be provided with one or two swing rod structures.

[0071] The rear-mounted intelligent switch based on the lever principle comprises multiple mechanical pressing groups.

[0072] In this way, each mechanical pressing place corresponds to one button. For example, when there are three mechanical buttons with upper and lower contacts on the control switch, the corresponding rear-mounted intelligent switch based on the lever principle can be provided with three mechanical pressing places for pressing the mechanical buttons on the control switch.

[0073] With reference to Figure 3 The shell 1 comprises a bottom shell 11 and an upper shell 12 buckled on the bottom shell 11. Specifically, the upper shell 12 is buckled on the bottom shell 11 by clamping.

[0074] In this way, the bottom shell and the upper shell can not only be tightly fixed, but also be easily disassembled to facilitate the viewing of the operation of each device inside the rear-mounted intelligent switch based on the lever principle for maintenance.

[0075] Further, the bottom shell 11 is provided with a motor base 13 for fixing the planetary motor 3.

[0076] In this way, the planetary motor can be fixed in the motor base. When the planetary motor is running, the planetary motor itself also has a tendency to move under the action of the reaction force. In the scheme provided in the present application, the planetary motor is fixed by the motor base to avoid the movement of the planetary motor.

[0077] Further, the rear-mounted intelligent switch based on the lever principle further comprises a motor fixing shell 14 buckled on the motor base 13 for fixing the planetary motor 3.

[0078] In actual application, a simple motor base may not be able to completely fix the planetary motor. In the scheme provided in the present embodiment, the motor fixing shell and the motor base can jointly constitute an annular structure. That is, the planetary motor is seated in the motor base, and the motor fixing shell is buckled on the motor base and presses the planetary motor towards the bottom shell to fix the planetary motor.

[0079] Further, the controller 2 is a PCBA circuit board integrated with a control circuit.

[0080] It should be noted that the control circuit can refer to the existing control circuit inside the intelligent switch. The main function of the control circuit is to receive a control signal and control the rotation of the planetary motor based on the control signal. The circuit for receiving the control signal can be a Bluetooth circuit, a Wi-Fi circuit, a 5G or 4G signal circuit, etc.

[0081] Specifically, the material of the shell 1 is plastic.

[0082] The shell 1 is adhered to the control switch.

[0083] It should be noted that the rear-mounted intelligent switch based on the lever principle provided in the embodiment can be fixed on the control switch by bonding, or can be fixed on the switch by magnetic attraction. However, in actual application, if the magnetic attraction type is used to fix on the switch, the magnetic attraction type is not very reliable, so it may cause misalignment and other problems. Once the rear-mounted intelligent switch based on the lever principle is misaligned, the through hole of the rear-mounted intelligent switch based on the lever principle may not correspond to the correct pressing point, thereby causing the rear-mounted intelligent switch based on the lever principle to fail to correctly press the control switch. Therefore, in the scheme provided in the application, it is suggested to use the mode of bonding the shell on the control switch. Specifically, the bottom shell can be provided with protrusions. Each protrusion is bonded on the control switch. When the swing lever structure does not extend out of the bottom shell through the first through hole, the rear-mounted intelligent switch based on the lever principle will not press the button on the control switch. When the swing lever structure extends out of the bottom shell through the first through hole, the swing lever structure can correctly press the button on the control switch and trigger the pressing operation.

[0084] It should be noted that the terms "first", "second", etc. expressed in this paper are not a limitation on the specific order, but only for distinguishing various components or functions.

[0085] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0086] It can be understood that the same or similar parts in the above embodiments can be mutually referred to, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0087] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A retrofitted smart switch based on the lever principle, characterized in that, It includes a housing connected to a control switch, a controller, a planetary motor fixed inside the housing, and a rotating body connected to the planetary motor; A swing arm structure is provided on the outer wall of the rotating body; The housing is provided with a through hole for the swing arm structure to extend out; when the rotating body is in the first state, the swing arm structure extends out of the through hole; when the rotating body is in the second state, the swing arm structure retracts into the housing. The controller is housed inside the housing and connected to the planetary motor, and is used to control the rotation of the planetary motor; The swing arm structure includes a lever; The distance between the contact point of the lever and the rotating body and the fulcrum of the lever is greater than the distance between the contact point of the lever and the control switch and the fulcrum of the lever. The rotating body drives the lever to press the switch; A fixed post is provided at the fulcrum position of the lever; The lever is rotatably fixed to the housing via the fixing post; The rotating body includes a switch seesaw; a swing arm is provided on the side of the switch seesaw; The swing arm drives the lever to move; The rocker arm structure also includes: an elastic element; One end of the elastic element is fixed to the housing, and the other end presses against the lever, so that the lever fits against the swing arm.

2. The retrofitted smart switch based on the lever principle as described in claim 1, characterized in that, The housing includes: a lever fixing shell; the lever fixing shell includes two sub-lever fixing shells that are symmetrically arranged from left to right; Each of the sub-lever fixing shells is provided with a through hole for fitting the protrusion of the fixing post, for fixing the lever.

3. The retrofitted smart switch based on the lever principle as described in claim 1, characterized in that, The housing includes a lever fixing shell base for housing the lever fixing shell.

4. The retrofitted smart switch based on the lever principle as described in claim 3, characterized in that, The elastic element is a torsion spring; The torsion spring is sleeved on the fixed post.

5. The retrofitted smart switch based on the lever principle as described in claim 1, characterized in that, The switch seesaw has two swing arms symmetrically arranged on its side. The number of the pendulum structures is the same as the number of the pendulum arms; the pendulum structures correspond one-to-one with the pendulum arms.

6. The retrofitted smart switch based on the lever principle as described in claim 1, characterized in that, A planetary motor, a rotating body connected to the planetary motor, and a rocker arm structure disposed on the outer wall of the rotating body constitute a mechanical pressing group; The lever-based retrofit smart switch includes multiple mechanical pressing groups; One or two rocker arm structures can be provided on the outer wall of a rotating body.

7. The retrofitted smart switch based on the lever principle as described in claim 4, characterized in that, The lever includes a flat power arm and a resistance arm, as well as a spindle-shaped fulcrum reinforcement structure.

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