Knob light-emitting module and control box knob
The knob lighting module, composed of light guides, light shields, light shielding rings, and reflective components, combined with RGB lights and encoders, solves the problem of monotonous lighting effects on elevator control panel knobs, achieving multiple lighting effects and a compact structural design, thus improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU WELM TECH
- Filing Date
- 2025-08-15
- Publication Date
- 2026-05-29
Smart Images
Figure CN224301898U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator control box technology, and in particular to a knob light-emitting module and a control box knob. Background Technology
[0002] Existing elevator control panel knobs are mostly hollow shaft encoders, which are relatively large in size; because the knob itself is in motion and the middle rotating mechanism is relatively complicated, the lighting effect is relatively simple. Utility Model Content
[0003] To address the issue that existing knobs offer limited lighting effects, this invention provides a knob lighting module and control box knob that can achieve multiple lighting effects.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] A knob light-emitting module, comprising:
[0006] light source;
[0007] A light guide, wherein the light guide is used to guide the light from the light source;
[0008] A light-shielding sheet is placed on the outside of the light guide, and the light guide located around the light-shielding sheet directs the first beam of light emitted outward.
[0009] A light-shielding ring is provided, which blocks the light guide around the light guide. The light guide located below the light-shielding ring directs a second light beam that emits light in all directions and a third light beam that emits light inward.
[0010] A reflective component, which is installed inside the light guide and is used to reflect a third beam of light outward.
[0011] Furthermore, the light-shielding sheet and light-shielding ring are glued and fixed to the light guide.
[0012] A control box knob, including the aforementioned knob light-emitting module, further includes:
[0013] The PCB board has an encoder mounted on it, and the knob light-emitting module is concentrically assembled with the encoder.
[0014] Furthermore, it also includes a knob base, with the knob light-emitting module installed inside the knob base, and the reflective component installed on the knob base.
[0015] Furthermore, the light guide is fitted on the outside of the encoder metal shaft, and the knob light-emitting module also includes a plum blossom retaining ring. The plum blossom retaining ring locks the encoder metal shaft, thereby limiting the light guide relative to at least one side of the encoder metal shaft, and the light guide rotates synchronously with the encoder metal shaft.
[0016] Furthermore, the knob light-emitting module also includes a guide sleeve, which is fixedly connected to the PCB board, and the light guide is inserted into the guide sleeve and slides along the guide sleeve.
[0017] Furthermore, the guide bushing is made of POM material with self-lubricating properties.
[0018] Furthermore, the encoder is equipped with a push switch, which can be triggered by pressing down the knob to activate the light-emitting module.
[0019] Furthermore, the light source is mounted on a PCB board.
[0020] Furthermore, the light source is an RGB lamp. Using RGB lamps can produce different colors of light to meet different needs.
[0021] Beneficial effects:
[0022] (1) The knob light-emitting module of this utility model achieves three lighting effects by using a light guide, a light shield and a light shield ring, which is suitable for the high-end elevator market with high demand for lighting effects.
[0023] (2) The control box knob of this utility model is small in size and can be adapted to a variety of control box products of different specifications. The encoder has a push switch, and the rotation and pressing are integrated for simple operation. The advantages are as follows: 1. Compact structure and low economic cost; 2. Brilliant lighting effect, enhancing user experience. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a disassembled structural diagram of the control box knob of this utility model;
[0026] Figure 2 This is a schematic diagram of the first beam of the control box knob of this utility model;
[0027] Figure 3 This is a schematic diagram of the second beam of the control box knob of this utility model;
[0028] Figure 4 This is a schematic diagram of the third beam of the control box knob of this utility model;
[0029] Figure 5This is the electrical schematic diagram of the control box knob of this utility model.
[0030] 1. Light-shielding plate, 2. Light-shielding ring, 3. Plum blossom retaining ring, 4. Light guide, 5. Knob base, 6. Guide bushing, 7. PCB board. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0034] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0035] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0036] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0037] like Figures 1-4This utility model provides a knob-shaped light-emitting module that achieves multiple functions. To achieve the above objectives, a light guide 4 is used to guide light upwards, and an additional side branch extends to guide light to the side and downwards. The reflective effect of the bottom surface is used to reflect the downward light in all directions, achieving three light-guiding effects with a single light source. This provides excellent light efficiency while being economical and compact. Specifically, the knob-shaped light-emitting module includes a light source, a light guide 4, a light shield 1, a light shield ring 2, and a reflective component. The light guide 4 is used to guide the light from the light source. The light shield 1 blocks the outside of the light guide 4, and the light guide 4 located around the light shield 1 guides outward-emitting first beams of light. The light shield ring 2 blocks the area around the light guide 4, and the light guide 4 located below the light shield ring 2 guides outward-emitting second beams of light and inward-emitting third beams of light. The reflective component is installed inside the light guide 4 to reflect the third beam of light outwards. In one embodiment, the light shield 1 and the light shield ring 2 are glued and fixed to the light guide 4.
[0038] like Figures 1-5 This utility model also provides a control box knob, including a knob light-emitting module, which is concentrically assembled with an encoder. The light guide 4 of the knob light-emitting module grips the encoder shaft to achieve synchronous rotation. It also includes a PCB board 7 and a knob base 5. The encoder is mounted on the PCB board 7, and the light source is mounted on the PCB board 7. Preferably, the light source is an RGB lamp.
[0039] The knob light-emitting module is installed inside the knob base 5, which is mounted on the mounting surface of the elevator control box and does not rotate with the knob light-emitting module. The reflective component is installed on the knob base 5. Optionally, a reflective coating can be provided on the knob base 5, or other light-emitting structures can be used.
[0040] The light guide 4 is fitted onto the outside of the encoder metal shaft. The knob light-emitting module also includes a perforated retaining ring 3, which holds the encoder metal shaft in place, limiting the light guide 4 relative to at least one side of the encoder metal shaft. Alternatively, one side of the light guide 4 can be limited by a step on the encoder metal shaft, or the encoder metal shaft can be tapered, with the perforated retaining ring 3 locking the light guide 4 in place. The light guide 4 grips the encoder shaft, and the light guide 4 rotates synchronously with the encoder metal shaft. In one implementation, the center hole of the light guide 4 for mating with the encoder is a non-circular hole, for example, milled flat on both sides. Similarly, the shape of the encoder metal shaft matches this design, thus achieving simultaneous rotation of both.
[0041] The knob lighting module also includes a guide sleeve 6, which is fixedly connected to the PCB board 7. Both are optional but limited to screw fixing. The PCB board can be fixed to the rotating base 5. The light guide 4 is inserted into the guide sleeve 6 and slides along the guide sleeve 6. Preferably, the guide sleeve 6 is made of self-lubricating POM material.
[0042] The encoder has a push-button switch; pressing down on the knob triggers the light-emitting module. Before the light guide 4 is pressed down, there is a very small gap between it and the PCB board 7. This gap is larger than the encoder's trigger stroke. When the pressing force is released, the encoder springs back on its own.
[0043] This invention introduces a small encoder that allows for layer selection by rotation and confirmation by pressing. It also enables three lighting effects, making it suitable for scenarios with limited internal space and high requirements for product sound and light effects. All parts are concentrically assembled with the PCB encoder shaft. The encoder metal shaft is secured by a perforated retaining ring 3, ensuring component locking. The guide sleeve 6 restricts the knob module to rotate only around the shaft center. The light-shielding sheet 1 and light-shielding ring 2 are attached to the light guide 4 to achieve zoned lighting effects.
[0044] Specifically, the three lighting effects are as follows:
[0045] Knob lighting effect 1, such as Figure 2 On the PCB board 7, the light is emitted outward through the light guide 4 in a direction perpendicular to the knob.
[0046] Knob lighting effect 2, such as Figure 3 The LEDs on the PCB board 7 emit light horizontally around the knob through the light guide 4.
[0047] Knob lighting effect 3, such as Figure 4 The LEDs on the PCB board 7 emit light through the light guide 4 to the knob base 5 below the knob, and the knob base 5 reflects the light outwards.
[0048] This product adopts a separate PCB board 7 (light board) and control board of the control box. It uses an STM32F103C8T6 chip to control RGB lighting components and achieves various lighting effects through single-wire zero-code communication. A flexible cable connects PCB board 7 and the control board of the control box, making communication between the two more reliable and the structure more compact and reliable.
[0049] This product uses a rotary switch with a 14-type rotary encoder and a pressing function, allowing for adjustment, selection, and confirmation of RGB lighting colors. Through a USB communication interface, it interacts with external devices, achieving mouse-like functionality. Its compact structure and stunning lighting effects enhance the user experience.
[0050] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A knob light-emitting module, characterized in that: include: light source; Light guide (4), the light guide (4) is used to guide the light from the light source; A light shield (1) is placed on the outside of the light guide (4), and the light guide (4) located around the light shield (1) emits a first beam of light outward. The light-shielding ring (2) blocks the area around the light guide (4), and the light guide (4) located below the light-shielding ring (2) emits a second light beam that emits light in all directions and a third light beam that emits light inward. The reflective component is installed inside the light guide (4) and is used to reflect the third beam outward.
2. The knob light-emitting module according to claim 1, characterized in that: The light-shielding sheet (1), the light-shielding ring (2), and the light guide (4) are attached and fixed together.
3. A control box knob, characterized in that: Including the knob light-emitting module as described in claim 1 or 2, it further includes: PCB board (7), on which an encoder is installed, and the knob light-emitting module is concentrically assembled with the encoder.
4. A control box knob according to claim 3, characterized in that: It also includes a knob base (5), with the knob light-emitting module installed inside the knob base (5), and the reflective component installed on the knob base (5).
5. A control box knob according to claim 3, characterized in that: The light guide (4) is fitted on the outside of the encoder metal shaft. The knob light-emitting module also includes a plum blossom retaining ring (3). The plum blossom retaining ring (3) locks the encoder metal shaft, thereby limiting the light guide (4) relative to at least one side of the encoder metal shaft. The light guide (4) rotates synchronously with the encoder metal shaft.
6. A control box knob according to claim 3, characterized in that: The knob light-emitting module also includes a guide sleeve (6), which is fixedly connected to the PCB board (7). The light guide (4) is inserted into the guide sleeve (6) and slides along the guide sleeve (6).
7. A control box knob according to claim 6, characterized in that: The guide bushing (6) is made of POM material with self-lubricating properties.
8. A control box knob according to claim 3, characterized in that: The encoder is equipped with a push switch; pressing down on the knob illuminates the switch.
9. A control box knob according to claim 3, characterized in that: The light source is mounted on the PCB board (7).
10. A control box knob according to claim 9, characterized in that: The light source is an RGB lamp.