CN211016325U

CN211016325U - L ED simulation indicating device

Info

Publication number: CN211016325U
Application number: CN202020231826.XU
Authority: CN
Inventors: 邓开军
Original assignee: Zhejiang Aoke Semiconductor Co ltd
Current assignee: Zhejiang Aoke Semiconductor Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-07-14
Anticipated expiration: 2030-02-28

Abstract

The utility model relates to an L ED simulation indicating device, close the shield that forms and hold the chamber including the bottom, with the bottom lid, the device is still including setting up in the PCB board that holds intracavity portion and lower extreme arrange in and hold the chamber and the upper end stretches out the outside pointer knob of shield up end, be equipped with the VR potentiometre on the PCB board and encircle in VR potentiometre SMD L ED all around, the fixed cover of pointer knob is established on the axis handle of VR potentiometre and the axis handle that the rotatory pointer knob of accessible drove the VR potentiometre rotates to make corresponding SMD L ED light and L ED light can correspond the position by the upper end of shield and jet out.

Description

L ED simulation indicating device

Technical Field

The utility model relates to the field of electronic technology, especially, relate to an L ED simulation indicating device.

Background

The temperature indicating devices are arranged on household appliances such as an electric heater, a clothes dryer, a bowl dryer and the like, and the temperature is set and displayed by adjusting the temperature indicating devices, most of the devices adopt a digital tube mode, and a few of the devices adopt L ED analog indicating devices, but the L ED analog indicating device in the prior art has many defects.

For example, the L ED analog indicating device mostly uses VR potentiometers and contact pin type L ED display particles which are arranged separately, the contact pin type L ED display particles occupy larger space, which causes the defects of large size area of a PCB, high cost, no miniaturization and the like, meanwhile, the contact pin type L ED display particles cause the problems of labor cost increase, uncontrollable contact pin height, L ED particles deflection and the like after contact pin insertion, so that the L ED luminous intensity is projected on a panel with uneven brightness, and the used VR potentiometers mostly adopt a smooth and sensorless rotation mode, so that knobs sleeved at the handle end of the VR potentiometers are easily influenced by the outside to move the originally set angle, thereby causing indication errors.

This type of problem exists not only in temperature indicating devices, but also in humidity indicating devices such as humidifiers and speed type indicating devices.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, an object of the present invention is to provide an L ED simulation indicating device which has a small size, low cost, uniform light emission and good operation feeling.

In order to achieve the purpose, the technical scheme of the utility model is that the L ED simulation indicating device comprises a bottom cover and a dustproof cover which is covered with the bottom cover to form an accommodating cavity, and is characterized in that:

the device also comprises a PCB arranged in the accommodating cavity and a pointer knob, wherein the lower end of the pointer knob is arranged in the accommodating cavity, the upper end of the pointer knob extends out of the upper end surface of the dustproof cover, and the PCB is provided with a VR potentiometer and a patch type L ED surrounding the VR potentiometer;

the fixed cover of pointer knob is established on the axis handle of VR potentiometre and accessible rotatory pointer knob drives the axis handle rotation of VR potentiometre to make corresponding SMD L ED light and L ED light can be jetted out by the upper end of shield and correspond the position.

Further, the device is still including setting up the light shielding wall lid between PCB board and pointer knob, light shielding wall is covered and is equipped with and establishes the logical unthreaded hole around SMD L ED with SMD L ED one-to-one and cover, light shielding wall is covered and still is had the perforation that can supply the axostylus axostyle of VR potentiometre to pass.

Furthermore, the light shielding wall cover is provided with an annular groove for embedding the lower end of the pointer knob therein, and the outer peripheral surface of the lower end of the pointer knob is provided with convex teeth which are distributed circumferentially;

and a stop elastic sheet is arranged in the annular groove, and convex points which can be meshed with the convex teeth are formed on the stop elastic sheet.

Furthermore, the light shielding wall cover is provided with a fixing groove for the locking elastic sheet to be embedded and fixed, and the inner wall of the fixing groove is provided with an opening for the salient point to extend into the annular groove and to be meshed with the convex tooth.

Furthermore, digital marks which correspond to the light through holes one by one are arranged on the upper end face of the dustproof cover.

Furthermore, a pointer pointing to the corresponding digital mark in the rotating process of the pointer knob is arranged on the pointer knob.

Furthermore, the periphery of shield is equipped with the card hole, be equipped with on the bottom can with the fixed fixture block of card hole joint.

Furthermore, a fixed seat used for being connected with the outside is further arranged on the outer wall of the dustproof cover.

Compared with the prior art, the utility model has the advantages of:

the touch control type touch control device has the advantages that the conventional contact pin type L ED is replaced by the patch type L ED, the problems that the contact pin type L ED occupies more space, the PCB is large in size and cannot be miniaturized are effectively solved, cost is saved, the problem that the conventional contact pin type L ED is prone to being skewed, light emitting of the contact pin type L ED is uneven is solved due to the fact that the patch type L ED is matched with the shading wall cover, the pointer knob can have a good locking effect in the rotating process through the arrangement of the locking elastic pieces, operation handfeel is improved, meanwhile, the problem that a shaft handle of the VR potentiometer is prone to being affected by the outside due to the fact that the lower end of the pointer knob is embedded in the annular groove is effectively solved, and display accuracy of the L ED simulation indicating.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a perspective view of fig. 1 with an external panel removed.

FIG. 3 is an exploded perspective view of FIG. 1;

fig. 4 is a top view of fig. 2.

Fig. 5 is a sectional view taken along line a-a of fig. 4.

Fig. 6 is a schematic structural view of the movable spring plate taken out of the fixing groove of the light shielding wall cover.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1-6, which is a block diagram of a preferred embodiment of the present application, as shown in the figure, the L ED analog indicating device includes a bottom cover 1, a dust cover 2 covering the bottom cover 1 to form a receiving cavity, a PCB 3 disposed inside the receiving cavity, and a pointer knob 4 disposed in the receiving cavity at a lower end and extending out of an upper end of the dust cover 2 at an upper end, a VR potentiometer 5 and a patch type L ED6 surrounding the VR potentiometer are disposed on the PCB 3, and of course, other electronic devices, such as an infrared sensor 7, are disposed on the PCB 3, but are not a protection focus of the present application, and are not a limitation here.

The fixed cover of pointer knob 4 is established on the mandrel of VR potentiometre 5 and the mandrel that accessible rotatory pointer knob 4 drove VR potentiometre 5 rotates, when rotating pointer knob 4, the resistance of VR potentiometre 5 access circuit can take place corresponding change, and different resistances correspond different SMD L ED6, also when the resistance of VR potentiometre 5 access circuit changes, SMD L ED6 that corresponds with this current resistance lights, the corresponding position of the up end of shield 2 can be followed to the light of L ED that lights.

In order to make L ED emergent light clearer and prevent uneven emergent light, a light shielding wall cover 8 is arranged between a PCB (printed circuit board) 3 and a pointer knob 4, a light through hole 81 which corresponds to a patch type L ED in a one-to-one mode and covers the periphery of a patch type L ED is arranged on the light shielding wall cover 8, light emitted by L ED is emitted from the upper end face of a dustproof cover 2 after passing through the light through hole 81, so that the light emitted by L ED can be prevented from being emitted to the periphery, the emergent position of the light from the dustproof cover 2 is more concentrated and more uniform, the lighting position seen from the dustproof cover 2 is clearer and convenient to check, meanwhile, a through hole 82 for a VR potentiometer 5 to pass through is further arranged on the light shielding wall cover 8, and the shaft handle of the VR potentiometer 5 can pass through the light shielding wall cover 8 to be connected with the pointer knob 4.

In order to prevent the pointer knob 4 from shaking to influence the VR potentiometer 5 and simultaneously enable the device to have good operation hand feeling, the annular groove 83 for the lower end of the pointer knob 4 to be embedded in is arranged on the shading wall cover 8, the convex teeth 41 which are distributed circumferentially are arranged on the outer peripheral surface of the lower end of the pointer knob 4, the locking elastic sheet 9 is arranged in the annular groove 83, and the convex point 91 which can be meshed with the convex teeth 41 is formed on the locking elastic sheet 9. In the process of rotating the pointer knob 4, the convex teeth 41 at the lower end of the pointer knob 4 can move relative to the convex points 91 of the stop elastic sheet 9, the pointer knob 4 rotates by one convex tooth angle, the clicking sound can be generated due to friction between the convex teeth 41 and the convex points 91, and when the pointer knob 4 rotates by one convex tooth angle, the convex points 91 are clamped between the two corresponding convex teeth 41, so that the pointer knob 4 has a good stop effect, and can generate the clicking rotation sound when the pointer knob 4 is rotated, and the pause feeling is generated when one convex tooth angle is rotated, thereby greatly improving the operation hand feeling of the device.

As a preferred embodiment, in order to fix the stop spring 9, the light shielding wall cover 8 is provided with a fixing groove 84, two ends of the stop spring 9 are embedded and fixed in the fixing groove 84, an opening 85 for protruding the convex point is provided on the inner wall of the fixing groove 84, and the convex point 91 protrudes from the opening 85 into the annular groove 83 to engage with the convex tooth 41.

In order to facilitate a user to accurately view data such as temperature set by the indicating device, the upper end face of the dustproof cover 2 of the indicating device is provided with digital marks which are in one-to-one correspondence with the positions of the light through holes, for example, 0, 10, 20 and 30 … …, when L ED is lightened, light emitted by L ED is irradiated on the corresponding digital marks on the dustproof cover 2 through the light through holes 81, so that the digital marks are displayed very clearly for the user to view.

Meanwhile, in order to further facilitate the user to view, the pointer knob 4 is provided with a pointer 42 which points to the corresponding number mark during the rotation of the pointer knob 4, i.e. the corresponding number mark on the dust cap 2 is illuminated and the pointer points to the illuminated number mark during the rotation of the pointer knob 4.

In order to facilitate the assembly, the periphery of the dust cover 2 is provided with a clamping hole 21, the bottom cover 1 is provided with a clamping block 11 which can be clamped and fixed with the clamping hole 21, and therefore the device is more convenient to assemble and disassemble compared with the traditional mode of adopting screw fixation.

In this embodiment, the outer wall of the dust cover 2 is further provided with a fixing seat 22 connected with the outside, and the fixing seat 22 is provided with a mounting hole 23 through which a screw can pass to be mounted and fixed. In order to make the appearance of the device more beautiful, an outer panel 10 is further sleeved on the dustproof periphery.

It should be noted that the analog indicating device of the present application can be applied to setting and displaying the temperature of electric appliances such as an electric heater and a dish dryer, and can also be applied to setting and displaying the humidity and the speed of electric appliances such as a humidifier, and the detailed description is omitted here.

While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An L ED simulation indicating device, includes bottom lid (1), closes dust cover (2) that form the holding chamber with the bottom lid, its characterized in that:

the device also comprises a PCB (3) arranged in the accommodating cavity and a pointer knob (4) of which the lower end is arranged in the accommodating cavity and the upper end extends out of the upper end surface of the dustproof cover, wherein the PCB (3) is provided with a VR potentiometer (5) and a patch type L ED (6) surrounding the VR potentiometer;

pointer knob (4) fixed cover is established on the axis handle of VR potentiometre (5) and accessible rotatory pointer knob (4) drives the axis handle rotation of VR potentiometre (5) to make corresponding SMD L ED (6) light and L ED light can be jetted out by the upper end of shield (2) corresponding position.

2. The L ED analog pointing device of claim 1, wherein:

the device is still including setting up diaphram lid (8) between PCB board (3) and pointer knob (4), the diaphram is covered to be equipped with and is established logical unthreaded hole (81) around SMD L ED with SMD L ED (6) one-to-one and cover, the diaphram is covered and still has perforation (82) that can supply the axostylus axostyle of VR potentiometre to pass.

3. The L ED analog pointing device of claim 2, wherein:

the lower end of the pointer knob (4) is embedded in an annular groove (83) formed in the light shielding wall cover (8), and convex teeth (41) distributed circumferentially are arranged on the outer peripheral surface of the lower end of the pointer knob (4);

a stop elastic sheet (9) is arranged in the annular groove, and a convex point (91) which can be meshed with the convex tooth (41) is formed on the stop elastic sheet.

4. An L ED analog pointing device according to claim 3, wherein:

the light shielding wall cover (8) is provided with a fixing groove (84) for the fixing of the locking spring sheet in an embedded mode, and the inner wall of the fixing groove (84) is provided with an opening (85) for the protruding point (91) to extend into the annular groove (83) to be meshed with the protruding tooth (41).

5. The L ED analog pointing device of claim 1, wherein:

and the upper end face of the dustproof cover (2) is provided with digital marks which correspond to the light through holes one to one.

6. The L ED analog pointing device of claim 5, wherein:

and a pointer (42) pointing to the corresponding digital mark in the rotating process of the pointer knob (4) is arranged on the pointer knob (4).

7. The L ED analog pointing device of claim 1, wherein:

the periphery of shield (2) is equipped with card hole (21), be equipped with on the bottom can with card fixed fixture block of hole joint (11).

8. The L ED analog pointing device of claim 1, wherein:

the outer wall of the dustproof cover (2) is also provided with a fixed seat (22) used for being connected with the outside.