Modular grating
Through the modularly designed grating, the production process of grating is simplified, the production efficiency and safety are improved, the cost is reduced, and the application range of gratings is expanded.
Patent Information
- Application Number
- CN202422227105.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The production efficiency of existing gratings is low, and the complex coordination between the light emitting diodes and lens modules leads to high production costs and affects the safety and penetration of equipment.
It adopts a modular design, including the housing, light source module, dimming module and lens module, and uses the grooves and long-shaped lens modules in the housing to achieve rapid installation, simplifying the alignment process between the lens and the light source module and reducing production costs.
It improves the production efficiency and safety of gratings, reduces production costs, and increases the popularity of gratings.
Smart Images
Figure CN223051527U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a grating, and more particularly to a modular grating. Background Art
[0002] A light curtain is an optoelectronic device that can effectively prevent people or animals from approaching machinery, equipment or places. It can not only effectively prevent casualties, but also be used to replace traditional mechanical barriers or other forms of protection, and can also enhance safety.
[0003] In line with the functions of the light curtain, it can not only improve the operating performance and working efficiency of machinery and equipment. In addition, due to the simple design, small size and easy manufacturing of the light curtain, it can be conveniently applied to various industries.
[0004] A light curtain is composed of a set of transmitters and receivers. The transmitter will transmit a set of light beams, and the receiver will include many light sensors. If an object is between the transmitter and the receiver and the receiver does not receive a complete signal, it will send a stop signal to the monitored device.
[0005] However, in a traditional light curtain, after light is generated by a light-emitting diode, the light shape is changed through a lens and then emitted. At the receiving end, after the light penetrates the lens and is refracted, it enters a photo detector (PD) to detect whether the light is blocked.
[0006] Among them, the light-emitting module is the core of the light curtain. The light-emitting module needs to first produce the lens module, and then align the lens module with the light-emitting diode (LED) on the printed circuit board. Then it is assembled into the housing, and the lens and the light-emitting diode are used in cooperation to change the light shape of the light.
[0007] How to provide an effective and safe light curtain structure that can conveniently and quickly improve the production efficiency by the cooperation of the light-emitting diode and the lens will help to enhance the safety when using the device, reduce the production cost of the light curtain, and increase the popularity rate of the light curtain. Summary of the Utility Model
[0008] The summary of the utility model aims to provide a simplified abstract of the content of this application so that readers can have a basic understanding of the content of this application. This summary of the utility model is not a complete overview of the content of this application, and its purpose is not to point out the important / critical components of the embodiments of the utility model or to define the scope of the utility model.
[0009] An object of the summary of the utility model is to provide a modular light curtain for convenient and safe manufacturing of the light curtain.
[0010] To achieve the above object, one technical solution of the present utility model relates to a modular grating including a transmitting unit and a receiving unit. The transmitting unit includes a housing, at least one light source module, at least one dimming module, and a lens module. The light source module is disposed in the housing, the dimming module is disposed on the light source module and has an elliptical slit with a light separation height from the light source module for the light of the light source module to penetrate. The elliptical slit has a first major axis and a first minor axis. The lens module is disposed on the housing and has an incident surface and an outgoing curved surface. After the light of the light source module penetrates the elliptical slit, it is incident on the incident surface and penetrates and converges through the outgoing curved surface. The outgoing curved surface has a second major axis, and the second major axis is not equal in length to the first major axis. In addition, the receiving unit is disposed corresponding to the transmitting unit to receive the light of the light source module.
[0011] In some embodiments, the lens module further includes a base connected to the outgoing curved surface.
[0012] In some embodiments, the housing further includes a first groove, and the base of the lens module is slidably inserted into the first groove.
[0013] In some embodiments, the second major axis of the lens module and the first major axis of the elliptical slit cooperate to form a light collection angle. The light source module has a light emitting angle, and the light collection angle is greater than the light emitting angle. The first major axis of the elliptical slit controls the light collection angle through length design to converge the light of the light source module and emit it to the receiving unit.
[0014] In some embodiments, the housing further includes a second groove, and the circuit board is slidably inserted into the second groove.
[0015] In some embodiments, the light source module is one or more light emitting diodes.
[0016] In some embodiments, the second major axis of the lens module and the first major axis of the elliptical slit cooperate to form a light collection angle. The light source module has a light emitting angle, and the light collection angle is less than the light emitting angle. The light of the light source module can completely reach the lens module and be emitted to the receiving unit.
[0017] In some embodiments, the housing further includes an opening for accommodating the outgoing curved surface.
[0018] In some embodiments, the lens module is a strip-shaped lens module.
[0019] In some embodiments, the receiving unit includes one or more photo detectors (PD).
[0020] According to another embodiment of the present utility model, a modular grating includes a transmitting unit and a receiving unit. The transmitting unit includes a housing, a plurality of light source modules, at least one dimming module, and a lens module. The housing has a first direction. The light source modules are disposed within the housing. The dimming module is disposed on the light source modules and has a slit through which the light of the light source modules penetrates. The lens module is disposed on the housing and is strip-shaped, and together forms a lens arc in a plurality of second directions perpendicular to the first direction. The lens arc extends along the first direction to form an emission surface. The receiving unit is disposed corresponding to the transmitting unit to receive the light of the light source modules.
[0021] In addition, in some embodiments, the lens module further includes a base connected to the emission surface.
[0022] In some embodiments, the housing further includes a first groove, and the base of the lens module is slidably inserted into the first groove.
[0023] In some embodiments, the transmitting unit further includes a circuit board, and the light source modules are mounted on the circuit board.
[0024] In some embodiments, the housing further includes a second groove, and the circuit board is slidably inserted into the second groove.
[0025] In some embodiments, the light source modules are one or more light emitting diodes.
[0026] In some embodiments, the light emitting diodes are infrared light emitting diodes.
[0027] In some embodiments, the housing further includes an opening for accommodating the emission surface.
[0028] In some embodiments, the slit is an elliptical slit, a rectangular slit or a rhombic slit.
[0029] In some embodiments, the receiving unit includes one or more light sensors.
[0030] Therefore, the modular grating disclosed by the present utility model can facilitate and quickly produce the grating, and the strip-shaped lens module has a consistent cross-section, so the light source modules do not need to be aligned with the lens module one by one in the first direction in the drawing. In addition, by using the grooves in the housing, it is also convenient to install the lens module, the circuit board, and the light source modules and the dimming module on the circuit board into the housing, and can directly form self-alignment in the second direction and the third direction, facilitating the production of the transmitting unit and the receiving unit of the modular grating, improving the quality of the modular grating, reducing the production cost of the modular grating, and increasing the popularity rate of the modular grating. Description of the Drawings
[0031] To make the above and other objects, features, advantages and embodiments of the present application more obvious and understandable, the description of the drawings is as follows:
[0032] Figure 1 Schematic diagram of an emission unit of a modular grating according to an embodiment of the present invention.
[0033] Figure 2 Partial enlarged schematic diagram of an emission unit of a modular grating according to an embodiment of the present invention.
[0034] Figure 3 Enlarged schematic diagram of a dimming module of an emission unit of a modular grating according to an embodiment of the present invention.
[0035] Figure 4 Schematic diagram of a lens module of an emission unit of a modular grating according to an embodiment of the present invention.
[0036] Figure 5 Cross-sectional schematic diagram of an emission unit of a modular grating according to an embodiment of the present invention.
[0037] Figure 6 Schematic diagram of an overall grating according to an embodiment of the present invention.
[0038] Description of reference numerals
[0039] 100: Emission unit
[0040] 100’: Receiving unit
[0041] 101: First direction
[0042] 102: Second direction
[0043] 103: Third direction
[0044] 110: Housing
[0045] 112: Opening
[0046] 114: First groove
[0047] 116: Second groove
[0048] 120: Lens module
[0049] 130: Light source module
[0050] 140: Dimming module
[0051] 150: Circuit board
[0052] 301: The first major axis,
[0053] 302: The first minor axis,
[0054] 310: Hole groove,
[0055] 401: The second major axis,
[0056] 402: Height,
[0057] 420: Injection surface,
[0058] 410: Base,
[0059] 412: Incident surface,
[0060] 414: Inlet bevel,
[0061] 422: Lens arc,
[0062] 501: Light ray,
[0063] 502: Light-off height,
[0064] 503: Emission angle,
[0065] 504: Light-receiving angle,
[0066] 600: Modular grating. Detailed implementation manners
[0067] Examples will be given below and described in detail with reference to the accompanying drawings. However, the examples provided are not intended to limit the scope covered by this application, and the description of the structure and operation is not intended to limit the execution order. Any structure formed by recombining components that produces an equivalent device is within the scope covered by this application. In addition, the drawings are for illustrative purposes only and are not drawn to the original scale. For ease of understanding, the same or similar components will be denoted by the same reference numerals in the following description.
[0068] In addition, the terms used throughout the specification and the claims, unless otherwise specifically noted, generally have their ordinary meanings as used in this field, in the content disclosed herein, and in the specific context. Certain terms used to describe this application will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art regarding the description of this application.
[0069] In the embodiments and the claims, unless otherwise specifically defined in the context, the articles "a" and "the" may refer to a single or multiple. The numbers used in the steps are only used to label the steps for ease of description and do not limit the order and implementation manners before and after.
[0070] Secondly, the terms "comprising", "including", "having", "containing", etc. used in this article are all open-ended terms, meaning including but not limited to.
[0071] Figure 1 FIG. is a schematic diagram of a transmitting unit of a modular grating according to an embodiment of the present invention. Figure 2 FIG. is a partially enlarged schematic diagram of the transmitting unit of the modular grating. Figure 3 FIG. is an enlarged schematic diagram of the dimming module of the transmitting unit of the modular grating. Figure 4 FIG. is a schematic diagram of the lens module of the transmitting unit of the modular grating. Figure 5 FIG. is a cross-sectional schematic diagram of the transmitting unit of the modular grating, and Figure 6 FIG. is a schematic diagram of the overall grating.
[0072] First, refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 , as shown in the figure, the modular grating 600 includes a transmitting unit 100 and a receiving unit 100'. The transmitting unit 100 emits light 501 and the receiving unit 100' is used to receive the light 501. When a person or an animal passes through the modular grating 600, since part of the light 501 emitted by the transmitting unit 100 is blocked and cannot be received by the receiving unit 100', a warning signal or a control signal is generated. Cooperating with the modular grating 600 effectively improves the operating performance and working efficiency of machinery and equipment.
[0073] In some embodiments, the transmitting unit 100 includes a housing 110, at least one light source module 130, at least one dimming module 140, and a lens module 120. The light source module 130 is disposed in the housing 110, and the dimming module 140 is disposed on the light source module 130. And the dimming module 140 includes a slit 310, for example, an elliptical slit, a rectangular slit, or a rhombic slit.
[0074] At the same time, refer to Figure 5 , as shown in the figure, the slit 310 has a light separation height 502 from the light source module 130 for the light 501 of the light source module 130 to penetrate, so as to adjust the light receiving angle 504. At the same time, refer to Figure 3 and Figure 4 , the slit 310 has a first major axis 301 along a third direction 103, and has a first minor axis 302 along a first direction 101, while the lens module 120 has a second major axis 401 along the third direction 103, and has a height 402 along a second direction 102.
[0075] In some embodiments, the length of the first major axis 301 of the hole groove 310 is not equal to the length of the second major axis 401 of the lens module 120, so as to form a light collecting angle 504.
[0076] In some embodiments, the lens module 120 is disposed in the housing 110. The lens module 120 has a base 410, an incident surface 412, and an exit curved surface 420. The base 410 is connected to the exit curved surface 420. After the light 501 of the light source module 130 penetrates through the hole groove 310, it is incident on the incident surface 412, for example, the incident surface 412 located below the base 410, but the present invention is not limited thereto. The light 501 further penetrates and converges through the exit curved surface 420.
[0077] In some embodiments, the transmitting unit 100 further includes a circuit board 150, and the light source module 130 is mounted on the circuit board 150. Among them, the light source module 130 is one or more light emitting diodes, such as infrared light emitting diodes.
[0078] In some embodiments, the housing 110 further includes an opening 112, a first groove 114, and a second groove 116. The base 410 of the lens module 120 can be slidably inserted into the first groove 114 to facilitate the installation of the lens module 120 in the housing 110.
[0079] In some embodiments, the base 410 of the lens module 120 further includes a guiding inclined surface 414 to more conveniently slide the base 410 of the lens module 120 into the first groove 114 to facilitate the installation of the lens module 120 in the housing 110.
[0080] In some embodiments, the circuit board 150 can also be slid into and inserted into the second groove 116 of the housing 110, so as to facilitate the installation of the circuit board 150, the light source module 130, and the dimming module 140 into the housing 110. It should be noted that the light source module 130 and the dimming module 140 can be directly fixed and positioned on the circuit board 150, so as to facilitate the synchronous installation and positioning of the light source module 130 and the dimming module 140. The lens module 120 has a long and uniform shape. Therefore, the light source module 130 and the dimming module 140 can be conveniently aligned with the lens module 120, so that the light 501 is emitted from the lens module 120, and a single long-strip lens module 120 can be aligned with multiple light source modules 130 and dimming modules 140. In other words, since the light source module 130 and the dimming module 140 are already synchronously fixed to the circuit board 150, during the process of inserting the light source module 130 and the dimming module 140 into the housing 110, the light 501 of the dimming module 140 can always achieve a converging effect through the long and uniform lens module 120. Therefore, it is also convenient for the installation of the transmitting unit 100, without worrying about the problem of misalignment during installation. Compared with a single dimming module that only arranges a single lens module, if several dimming modules are required, several lens modules need to be set. In this way, the lens module and the dimming module need to be positioned one by one to play a role, which is much more laborious in design and manufacturing. On the contrary, the lens module 120 in this case does not need to be positioned one by one with the dimming module 140, and can produce an effect beneficial to assembly without special positioning.
[0081] In some embodiments, the lens module 120 is a long-strip lens module.
[0082] It should be noted that the structure of the receiving unit 100' of the modular grating 600 is similar to the structure of the transmitting unit 100, and the light source module 130 is replaced by a photo detector (PD), so that the light 501 is focused on the photo detector (PD) after passing through the lens module of the receiving unit 100'.
[0083] According to another embodiment of the present utility model, a modular grating 600 is disclosed, which includes a transmitting unit 100 and a receiving unit 100'. The transmitting unit 100 includes a housing 110, a plurality of light source modules 130, at least one dimming module 140, and a lens module 120. The plurality of light source modules 130 are disposed within the housing 110 and arranged along a first direction 101. The dimming module 140 is disposed on the light source module 130 and has a hole slot 310 through which the light 501 of the light source module 130 penetrates. The lens module 120 is disposed on the housing 110 and is in a long strip shape, and together forms a lens arc 422 in a plurality of second directions 102 perpendicular to the first direction 101. The lens arc 422 extends along the first direction 101 to form an emission surface 420. The receiving unit 100' is disposed corresponding to the transmitting unit 100 to receive the light 501 of the light source module 130.
[0084] In some embodiments, the hole slot 310 can be an elliptical hole slot, a rectangular hole slot, or a diamond-shaped hole slot.
[0085] Referring again to Figure 5 , as shown in the figure, the length of the second major axis 401 of the lens module 120 and the length of the first major axis 301 of the hole slot 310 are not the same to form a light receiving angle 504. In addition, the light separation height 502 of the hole slot 310 from the light source module 130 can be coordinated with the length of the first major axis 301 of the hole slot 310 to adjust the angle at which the light 501 of the light source module 130 penetrates the hole slot 310, so as to adjust the light receiving angle 504.
[0086] In addition, as Figure 5 shown, when the light receiving angle 504 is smaller than the light emitting angle 503 of the light source module 130, the light 501 can completely reach the lens module 120 and be emitted to the receiving unit 100'. When the light emitting angle 503 of the light source module 130 is smaller than the light receiving angle 504, the length of the first major axis 301 of the hole slot 310 can be used to control the light receiving angle 504 to control and gather the light 501 of the light source module 130, so that it is emitted to the receiving unit 100' through the lens module 120.
[0087] In some embodiments, preferably, both the light receiving angle 504 and the light emitting angle 503 are effective endpoints with the vertex at the edge of the lens module 120, but the present utility model is not limited thereto.
[0088] In view of this, the modular grating disclosed by the present utility model can facilitate and quickly produce gratings. Moreover, for the strip-shaped lens module with a consistent cross-section, the light source module does not need to be aligned with the lens module one by one in the first direction in the drawing. In addition, by using the groove in the housing, the lens module, the circuit board, and the light source module and the dimming module on the circuit board can be conveniently installed in the housing, and alignment can be directly formed in the second and third directions, facilitating the production of the emission unit and the receiving unit of the modular grating, improving the quality of the modular grating, reducing the production cost of the modular grating, and increasing the popularity rate of the modular grating.
[0089] However, the above-mentioned are only the preferred embodiments of the present utility model, and the scope of implementation of the present utility model cannot be limited thereby. That is, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present utility model and the content of the utility model description still fall within the scope covered by the patent of the present utility model. In addition, any one embodiment or the scope of the patent application of the present utility model does not need to achieve all the purposes, advantages or features disclosed by the present utility model. Moreover, the abstract part and the title are only used to assist in searching for patent documents and are not used to limit the scope of rights of the present utility model. In addition, the terms "first", "second", etc. mentioned in this specification or the scope of the patent application are only used to name the components (elements) or distinguish different embodiments or scopes, and are not used to limit the upper or lower limits of the number of components.
[0090] Although this application has been disclosed above in the form of embodiments, it is not intended to limit this application. Any person of ordinary skill in the art can make various changes and refinements without departing from the spirit and scope of this application. Therefore, the scope of protection of this application shall be subject to what is defined by the appended scope of the patent application.
Claims
1. A modular grating, wherein: Include: A transmitting unit, comprising: a housing; At least one light source module is disposed in the housing; At least one dimming module is disposed on the light source module and has an elliptical hole groove, which is at a light separation height from the light source module to allow the light of the light source module to pass through, wherein the elliptical hole groove has a first major axis and a first minor axis; and a lens module, disposed on the housing, having an incident surface and an emission curved surface, wherein the light of the light source module passes through the elliptical aperture and is incident on the incident surface, and is penetrated and converged through the emission curved surface, wherein the emission curved surface has a second major axis, and the second major axis is not equal to the first major axis in length; and A receiving unit is arranged corresponding to the transmitting unit to receive the light from the light source module.
2. The modular grating according to claim 1, wherein: The lens module also includes: A base is connected to the emitting curved surface.
3. The modular grating according to claim 2, wherein: The housing also includes: A first groove is formed, and the base of the lens module is slidably inserted into the first groove.
4. The modular grating according to claim 1, wherein: The second long axis of the lens module and the first long axis of the elliptical hole groove cooperate to form a light collection angle. The light source module has a light emission angle, which is greater than the light emission angle. The first long axis of the elliptical hole groove controls the light collection angle through length design to converge the light of the light source module and emit it to the receiving unit.
5. The modular grating according to claim 4, wherein: The housing also includes: A second groove is formed, and the circuit board of the transmitting unit is slidably inserted into the second groove.
6. The modular grating according to claim 1, wherein: The light source module is one or more light emitting diodes.
7. The modular grating according to claim 1, wherein: The second major axis of the lens module and the first major axis of the elliptical hole groove cooperate to form a light collection angle. The light source module has a light emission angle. The light collection angle is smaller than the light emission angle. The light of the light source module can completely reach the lens module and be emitted to the receiving unit.
8. The modular grating according to claim 1, wherein: The housing also includes: An opening is used to accommodate the ejection curved surface.
9. The modular grating according to claim 1, wherein: The lens module is a long strip lens module.
10. The modular grating according to claim 1, wherein: The receiving unit includes one or more light sensors.
11. A modular grating, wherein: Include: A transmitting unit, comprising: A housing having a first direction; A light source module is disposed in the housing; At least one dimming module is disposed on the light source module and has a hole for light from the light source module to pass through; as well as A lens module is disposed on the housing and is in a strip shape. A lens arc is formed in a plurality of second directions perpendicular to the first direction. The lens arc extends along the first direction to form an emission curved surface. as well as A receiving unit is arranged corresponding to the transmitting unit to receive the light from the light source module.
12. The modular grating according to claim 11, wherein: The lens module also includes: A base is connected to the emitting curved surface.
13. The modular grating according to claim 12, wherein: The housing also includes: A first groove is formed, and the base of the lens module is slidably inserted into the first groove.
14. The modular grating according to claim 11, wherein: The transmitting unit also includes: A circuit board, the light source module is mounted on the circuit board.
15. The modular grating according to claim 14, wherein: The housing also includes: A second groove is formed, and the circuit board is slidably inserted into the second groove.
16. The modular grating according to claim 11, wherein: The light source module is one or more light emitting diodes.
17. The modular grating according to claim 16, wherein: The light emitting diodes are infrared light emitting diodes.
18. The modular grating according to claim 11, wherein: The housing also includes: An opening is used to accommodate the ejection curved surface.
19. The modular grating according to claim 11, wherein: The hole groove is an elliptical hole groove, a rectangular hole groove or a diamond hole groove.
20. The modular grating of claim 11, wherein: The receiving unit includes one or more light sensors.