CN210629321U

CN210629321U - Passive wireless switch

Info

Publication number: CN210629321U
Application number: CN201921540509.XU
Authority: CN
Inventors: 田赡民; 王华周; 朱清涛; 王安文
Original assignee: Ningbo Gongniu Electric Appliances Co Ltd
Current assignee: Ningbo Gongniu Electric Appliances Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-05-26
Anticipated expiration: 2029-09-17

Abstract

The utility model is suitable for the technical field of switches, and provides a passive wireless switch, which comprises a fixed frame, a button rotationally arranged on the fixed frame, and a power generation module arranged in the fixed frame; the power generation module comprises a shell, a return spring arranged on the shell, a power generation assembly arranged on the shell and a driving piece which is rotatably arranged on the shell and drives the power generation assembly to generate power when rotating; the driving piece comprises a pressing arm rotationally connected with the shell and an elongated arm formed by extending one end of the pressing arm, and the elongated arm supports the button and is connected with the button; when the button is pressed, the driving piece is driven to compress the spring, and the driving piece can reset under the action of the reset spring. The utility model provides a passive wireless switch's button is pressed required operating force and is little, has alleviateed pressing of button and has felt, has promoted user and has used experience, and can prevent that the button from pressing the situation that the in-process left right bank appears and rock to switching performance has been promoted.

Description

Passive wireless switch

Technical Field

The utility model relates to the field of switch technology, concretely relates to passive wireless switch.

Background

With the rapid development of modern home, in order to save the tedious steps of switch wiring, passive wireless switches (such as a doorbell button switch and a door opening and closing button switch) are appeared on the market for controlling controlled equipment, electric energy is generated when buttons of the passive wireless switches are pressed, the generated electric energy supplies power to a signal processing device, and the signal processing device transmits wireless signals to the controlled equipment to enable the controlled equipment to execute corresponding actions.

In a passive wireless switch in the prior art, a driving piece is generally driven to move and compress a return spring by pressing a button, and a power generation module in the wireless button switch is driven to generate electric energy in the moving process of the driving piece; after loosening the hand, the driving piece resets under the restoring force effect of reset spring to the driving piece drives the button and resets. Because passive wireless switch among the prior art is when pressing the button, the button drives the casing slip in the direct power generation module of following of driving piece for the required operating force of pressing of driving piece is great, thereby makes the button press required operating force big, influences the user and uses experience.

SUMMERY OF THE UTILITY MODEL

The utility model provides a passive wireless switch aims at solving prior art's passive wireless switch and has that the button presses required operating force big, influences the problem that the user used experience.

The utility model is realized in such a way that the passive wireless switch comprises a fixed frame, a button rotationally arranged on the fixed frame and a power generation module arranged in the fixed frame;

the power generation module comprises a shell, a return spring arranged on the shell, a power generation assembly arranged on the shell, and a driving piece which is rotatably arranged on the shell and drives the power generation assembly to generate power when rotating;

the driving piece comprises a pressing arm rotationally connected with the shell and an elongated arm formed by extending one end of the pressing arm, and the elongated arm supports the button and is connected with the button; the button is pressed to drive the driving piece to compress the spring, and the driving piece can reset under the action of the reset spring.

Preferably, the elongated arm is snap-fit connected to the button.

Preferably, the other end of the pressing arm extends to form a connecting arm, and the connecting arm is rotatably connected with the shell.

Preferably, the fixing frame is provided with a bottom surface for installing the shell, and the elongated arm is arranged in a manner of upwarping relative to the bottom surface.

Preferably, the length of the extension arm is 9-10 mm.

Preferably, the casing includes the base and covers and locates the apron of base, the base with the apron is closed each other and is formed an opening, the extension arm is followed the opening stretches out, reset spring locates the base with between the pressure arm.

Preferably, the pressure arm is provided with a mounting cavity, and the return spring is at least partially accommodated in the mounting cavity.

Preferably, the bottom of the shell is provided with a positioning column, and the return spring is sleeved on the positioning column.

Preferably, the power generation assembly comprises magnetic steel, a first yoke and a second yoke which are arranged on the shell at intervals, and an induction coil which is arranged between the first yoke and the second yoke, and the magnetic steel is fixed on the driving piece and can move between the first yoke and the second yoke.

Preferably, the electricity generation subassembly is including being fixed in the magnet steel is located respectively the first armature and the second armature of the relative both sides of magnet steel, the magnet steel accessible first armature with first yoke adsorbs, just magnet steel accessible second armature with second yoke adsorbs.

The utility model provides a passive wireless switch sets up in the casing through the driving piece rotation of generating module, drives this driving piece rotation and compression reset spring when the button is pressed, utilizes lever principle, and the button only needs to exert less pressing force to the driving piece and can drive this driving piece rotation in order to compress reset spring to make the button press the required operating force little, alleviateed the pressing of button and felt, promoted user's use experience; one end of the pressing arm of the driving part extends to form an elongated arm, namely, one end of the driving part is lengthened, so that the driving moment of the driving part is increased, the pressing force required by the driving part is further reduced, and the pressing hand feeling of the button is further relieved. Simultaneously, because extension arm supports the button and is connected with the button, extension arm plays limiting displacement to the button, prevents that the button from the situation that the slope rocked about pressing the in-process to switching performance has been promoted.

Drawings

Fig. 1 is an exploded perspective view of a passive wireless switch according to an embodiment of the present invention;

fig. 2 is a three-dimensional structure diagram of the passive wireless switch provided by the embodiment of the present invention after the button is removed;

fig. 3 is a schematic structural diagram of a passive wireless switch according to an embodiment of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic diagram of a partial cross-sectional structure of a passive wireless switch according to an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view illustrating a driving member of a power generation module in a passive wireless switch according to an embodiment of the present invention when not pressed;

fig. 7 is a schematic cross-sectional view illustrating a driving member of a power generation module in a passive wireless switch according to an embodiment of the present invention;

fig. 8 is a three-dimensional structure diagram of a driving member in a passive wireless switch according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a driving member in a passive wireless switch according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of a driving member in a passive wireless switch according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the utility model provides a passive wireless switch sets up the driving piece rotation of power generation module in the casing, drives this driving piece rotation and compression reset spring when the button is pressed, utilizes lever principle, and the button only needs to exert less pressing force to the driving piece and can drive this driving piece rotation in order to compress reset spring to make the button press required operating force little, alleviateed the pressing of button and felt, promoted user's use experience; simultaneously, because extension arm supports the button and is connected with the button, extension arm plays limiting displacement to the button, prevents that the button from the situation that the slope rocked about pressing the in-process to switching performance has been promoted.

Referring to fig. 1 to 4, a passive wireless switch according to an embodiment of the present invention includes a fixing frame 1, a button 2 rotatably disposed on the fixing frame 1, and a power generation module 3 disposed in the fixing frame 1; the power generation module 3 comprises a shell 31, a return spring 32 arranged on the shell 31, a power generation assembly 33 arranged on the shell 31, and a driving piece 34 which is rotatably arranged on the shell 31 and drives the power generation assembly 33 to generate power when rotating; the driving member 34 includes a pressing arm 341 rotatably connected to the housing 31 and an elongated arm 342 formed by extending one end of the pressing arm 341, the elongated arm 342 supports the button 2 and is connected to the button 2, the driving member 34 is driven to rotate and compress the return spring 32 when the button 2 is pressed, and the driving member 34 can be reset by the return spring 32.

The embodiment of the utility model provides a passive wireless switch sets up in casing 31 through the driving piece 34 rotation with power module 3, drives this driving piece 34 rotation and compression reset spring 32 when button 2 presses. Because the driving part 34 is rotatably arranged on the shell 31, the button 2 can drive the driving part 34 to rotate to compress the reset spring 32 only by applying a small pressing force to the elongated arm 342 of the driving part 34 by utilizing the lever principle, so that the required operating force for pressing the button 2 is small, the pressing hand feeling of the button 2 is reduced, and the user use experience is improved.

The embodiment of the utility model provides a, form one through the extension in the pressure arm 341 one end of driving piece 34 and increase arm 342, set up through the one end extension with driving piece 34 promptly, increased driving moment of driving piece 34, further reduced the required pressing force of driving piece 34 to further alleviate pressing of button 2 and feel. Meanwhile, the button 2 is supported on the elongated arm 342 of the driving member 34 and connected with the elongated arm 342, the elongated arm 342 has a limiting effect on the button 2, and the button 2 is prevented from shaking in a left-right inclined mode in the pressing process, so that the switching performance is improved.

The embodiment of the utility model provides an in, the quantity of button 2 can be one, two or more, and the quantity of power generation module 3 is corresponding with the quantity of button 2, and every button 2 is connected with the driving piece 34 drive of a power generation module 3 to the driving piece 34 that the drive corresponds when pressing button 2 rotates so that the power generation module 3 that corresponds generates electricity.

When the number of the buttons 2 is one, the passive wireless switch is a single-control switch. Because the button 2 supports on the extension arm 342 of driving piece 34, extension arm 342 plays limiting displacement to button 2, prevents that button 2 from appearing tilting about pressing the in-process and rocking and appearing the scraping phenomenon with mount 1 to switching performance has been promoted. Moreover, one end of the pressing arm 341 of the driving element 34 is extended to form an extended arm, so that the driving moment of the driving element 34 is increased, the pressing force required by the driving element 34 is further reduced, the pressing force for pressing the button 2 is reduced, and the button 2 is further prevented from being scratched by the fixed frame 1 due to the fact that the button 2 tilts left and right in the pressing process.

When the number of the buttons 2 is two or more, that is, the passive wireless switch is a two-position switch or a multi-position switch. Because every button 2 supports on the extension arm 342 that corresponds driving piece 34, extension arm 342 plays limiting displacement to button 2, prevents that button 2 from appearing the horizontal tilt at the in-process of pressing and rocking and leading to adjacent two buttons 2 to appear the linkage phenomenon to switching performance has been promoted. The one end of the pressing arm 341 of each driving member 34 is extended to form an elongated arm 342, so that the driving moment of the driving member 34 is increased, the pressing force required by the driving member 34 is further reduced, the pressing force of the button 2 is small when the button is pressed, and the phenomenon that the adjacent buttons are linked due to the fact that the button 2 tilts left and right in the pressing process is further prevented. In fig. 1 and 2, the passive wireless switch is a three-position switch, the number of buttons 2 is three, and the number of corresponding power generation modules 3 is three.

Please refer to fig. 5 in combination, as an embodiment of the present invention, the fixing frame 1 is provided with a bottom surface 11 for installing the housing 31, and the elongated arm 342 is disposed to be tilted upward relative to the bottom surface 11, so that the elongated arm 342 supports the button 2 in place, thereby preventing the button 2 from being in a virtual position, and further improving the switching performance, wherein the upper surface 3421 of the elongated arm 342 is a plane, when the button 2 is not pressed, an included angle α between the upper surface 3421 and the bottom surface 11 is 4-5 °, so that the elongated arm 342 supports the button 2 in place, and the pressing force of the button 2 is ensured to be small.

Referring to fig. 6 and 7, as an embodiment of the present invention, the housing 31 includes a base 311 and a cover 312 covering the base 311, the base 311 and the cover 312 cover each other to form an opening 313, the elongated arm 342 extends from the opening 313, and the return spring 32 is disposed between the base 311 and the pressing arm 341.

In this embodiment, when the button 2 is not pressed, the upper surface 3421 of the elongated arm 342 contacts the top wall of the opening 313; when the button 2 is pressed, the button 2 drives the elongated arm 342 to rotate downward in the opening 313, so that the pressing arm 341 compresses the return spring 32 until the driving member 34 is pressed to a position where the lower surface 3422 of the elongated arm 342 contacts the bottom wall of the opening 313, and the return spring 32 is completely compressed. When the push button 2 is released, the driving member 34 is restored by the restoring force of the restoring spring 32, and the upper surface 3421 of the elongated arm 342 comes into contact with the top wall of the opening 313 again.

Referring to fig. 8-10, in the embodiment of the present invention, the pressing arm 341 and the extending arm 342 are integrally formed. By providing the elongated arm 342, i.e. by providing an elongated length of the actuator 34, the driving torque of the actuator 34 is increased, the pressing force required for the actuator 34 is further reduced, and the operating force required for pressing the push button 2 is further reduced.

As a preferred embodiment of the present invention, the length L of the extension arm 342 is 9-10 mm. By setting the length L of the extension arm 342 to 9-10 mm, a large driving moment of the driving member 34 is ensured, so that the pressing force required by the driving member 34 is small, the operating force required by the button 2 to press is small, the small size of the driving member 34 is ensured, and the driving member 34 is prevented from occupying a large space.

As an embodiment of the present invention, the elongated arm 342 is snap-connected to the button 2. In this embodiment, the button 2 is provided with a connecting post 21, the connecting post 21 is provided with a locking groove 211, and one end of the elongated arm 342 is locked into the locking groove 211. The elongated arm 342 facilitates the connection between the driver 34 and the button 2 by snap-fitting with the button 2, and makes the connection between the driver 34 and the button 2 secure and reliable.

As an embodiment of the present invention, the other end of the pressing arm 341 extends to form a connecting arm 343, and the connecting arm 343 is rotatably connected to the housing 31. Specifically, the other end of the pressing arm 341 extends to form two connecting arms 343 arranged at intervals, a rotating shaft 344 is arranged on the connecting arm 343, and the connecting arm 343 is rotatably connected with the base 311 through the rotating shaft 344, so that the connecting arm 343 is ensured to rotate stably. When the button 2 is pressed, the button 2 drives the extension arm 342 to rotate, the extension arm 342 drives the pressing arm 341 to compress the return spring 32, and the pressing arm 341 rotates around the rotating shaft 344 through the connecting arm 343.

Referring to fig. 10, as an embodiment of the present invention, the pressing arm 341 has a mounting cavity 3411, and the return spring 32 is at least partially accommodated in the mounting cavity 3411. The driving member 34 is matched with the return spring 32 through the mounting cavity 3411, so that the occupied space of the return spring 32 is reduced, and meanwhile, the mounting cavity 3411 has a limiting effect on the return spring 32, so that the return spring 32 is prevented from being bent and deformed towards one side.

As an embodiment of the present invention, a positioning post 3111 is disposed at the bottom of the housing 31, and the positioning post is sleeved with the return spring 32. Specifically, the positioning post 3111 is disposed on the base 311. By providing the positioning post 3111, the positioning post 3111 serves to position the return spring 32, and further prevents the return spring 32 from being bent to one side when the driving member 34 is compressed.

Referring again to fig. 6 and 7, as an embodiment of the present invention, the power generating assembly 33 includes a magnetic steel 331, a first yoke 333 and a second yoke 334 disposed at an interval in the housing 31, and an induction coil 332 disposed between the first yoke 333 and the second yoke 334, wherein the magnetic steel 331 is fixed on the driving member 34 and is movable between the first yoke 333 and the second yoke 334.

In this embodiment, the magnetic steel 331, the first yoke 333, and the second yoke 334 constitute a closed magnetic circuit, and the magnetic circuit passes through the induction coil 332. When the button 2 is pressed, the button 2 drives the driving member 34 to rotate, so as to drive the magnetic steel 331 to move synchronously, thereby changing the magnetic flux passing through the induction coil 332, and further generating induced electromotive force and induced current inside the induction coil 332. The magnetic steel 331 is fixed between the two connecting arms 343, the induction coil 332 is wound on the coil frame 337, the first yoke 333 is fixed to the cover plate 312, and the second yoke 334 is fixed to the base 311.

Wherein, the magnetic pole distribution mode of the magnetic steel 331 is not limited. In this embodiment, one end of the magnetic steel 331 close to the first yoke 333 is an N pole, and one end of the magnetic steel 331 close to the second yoke 334 is an S pole. When the driving member 34 is reset by the urging force of the return spring 32, and the return spring 32 is restored to the natural length, the driving member 34 is attracted to the first yoke 333 by the magnetic steel 331, thereby ensuring that the driving member 34 is reset in place.

As an embodiment of the present invention, the power generation assembly 33 includes a first armature 335 and a second armature 336 fixed on the magnetic steel 331 and respectively located on two opposite sides of the magnetic steel 331, the magnetic steel 331 can be adsorbed by the first armature 335 and the first yoke 333, and the magnetic steel 331 can be adsorbed by the second armature 336 and the second yoke 334. The first armature 335 and the second armature 336 are arranged, so that magnetic leakage of the magnetic steel 331 is reduced.

The utility model provides a passive wireless switch theory of operation as follows: as shown in fig. 6, when the push button 2 is not pressed, the driving member 34 is in an un-pressed state, the first armature 335 is attracted to the first yoke 333, and magnetic lines of force of the magnetic steel 331 sequentially pass through the first armature 335, the first yoke 333, the second yoke 334, and the second armature 336 to form a magnetic circuit, in which state, the magnetic lines of force in the induction coil 332 are from right to left; as shown in fig. 7, when the push button 2 is pressed, the push button 2 applies a driving force to the elongated arm 342 of the driving member 34, so that the driving member 34 is in a pressed state, at this time, the magnetic steel 331, the first armature 335 and the second armature 336 move along with the rotation of the driving member 34 until the driving member 34 swings downwards to an end state, the second armature 336 is adsorbed to the second yoke 334, and magnetic lines of force of the magnetic steel 331 sequentially pass through the first armature 335, the first yoke 333, the second yoke 334 and the second armature 336 to form a magnetic circuit, in which state, the magnetic lines of force in the induction coil 332 are from left to right. Since the magnitude and direction of the magnetic field passing through the induction coil 332 are equal and opposite in both the non-depressed state and the depressed state of the driving member 34, induced electromotive force and induced current can be generated in the induction coil 332. The power generated by the induction coil 332 is supplied to a signal processing device (not shown) electrically connected to the induction coil 332, and the signal processing device transmits a wireless signal to the controlled device, so that the controlled device performs a corresponding action, such as controlling a doorbell, a lamp or other loads. After the push button 2 is released, the driving member 34 returns to the initial state by the restoring force of the return spring 32, and the driving member 34 is attracted to the first yoke 333 by the magnetic steel 331.

The passive wireless switch provided by the embodiment of the utility model has the advantages that the driving piece of the power generation module is arranged in the shell in a rotating way, the driving piece is driven to rotate and the reset spring is compressed when the button is pressed, and the button can drive the driving piece to rotate to compress the reset spring only by applying smaller pressing force by utilizing the lever principle, so that the required operating force for pressing the button is small, and the use experience of a user is improved; meanwhile, one end of the pressing arm of the driving part extends to form an elongated arm, namely, one end of the driving part is elongated, so that the driving torque of the driving part is increased, and the pressing force required by the driving part is further reduced. Through supporting the button in the extension arm of driving piece and being connected with extension arm, extension arm plays limiting displacement to the button, prevents that the button from the situation that the slope rocked about pressing the in-process to switching performance has been promoted.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A passive wireless switch is characterized by comprising a fixed frame, a button rotationally arranged on the fixed frame, and a power generation module arranged in the fixed frame;

2. The passive wireless switch of claim 1, wherein the elongated arm is snap-fit to the button.

3. A passive wireless switch according to claim 1, wherein the other end of the press arm extends to form a connecting arm, the connecting arm being pivotally connected to the housing.

4. The passive wireless switch of claim 1, wherein the fixing frame is provided with a bottom surface for mounting the housing, and the elongated arm is tilted upward relative to the bottom surface.

5. The passive wireless switch of claim 1, wherein the length of the elongated arm is 9-10 mm.

6. The passive wireless switch of claim 1, wherein the housing includes a base and a cover disposed on the base, the base and the cover covering each other to form an opening, the elongated arm extending from the opening, and the return spring disposed between the base and the pressing arm.

7. The passive wireless switch of claim 1, wherein the pressure arm defines a mounting cavity, and wherein the return spring is at least partially received within the mounting cavity.

8. The passive wireless switch of claim 1, wherein a positioning post is disposed at the bottom of the housing, and the return spring is sleeved on the positioning post.

9. The passive wireless switch of claim 1, wherein the power generating assembly comprises a magnetic steel, a first yoke and a second yoke disposed in the housing and spaced apart from each other, and an induction coil disposed between the first yoke and the second yoke, the magnetic steel being fixed to the driving member and movable between the first yoke and the second yoke.

10. The passive wireless switch of claim 9, wherein the power generating assembly comprises a first armature and a second armature fixed to the magnetic steel and respectively located on two opposite sides of the magnetic steel, the magnetic steel can be adsorbed by the first armature and the first yoke, and the magnetic steel can be adsorbed by the second armature and the second yoke.