Low temperature resistant light source
By setting an annular sealed cavity and a heat insulation medium layer in the LED lamp housing, and combining it with an infrared radiation heating component and a temperature sensor, the problems of poor reliability and lighting effect of LED lamps in low-temperature environments are solved, and stable operation under low-temperature conditions is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-23
AI Technical Summary
LED lights experience reduced reliability of their driver circuits and decreased illumination in low-temperature environments.
An annular sealed cavity is set in the housing of the LED lamp and filled with a heat insulation medium layer. Combined with an infrared radiation heating component and a temperature sensor, the temperature of the LED lamp board can be controlled and kept warm.
This improves the reliability and lighting effect of LED lights in low-temperature environments, ensuring that LED light panels operate normally within a suitable temperature range.
Smart Images
Figure CN224397681U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light source structure technology, and in particular to a low-temperature resistant light source. Background Technology
[0002] LED lights have advantages such as energy saving and long service life, but the driving circuit of LED lights is more complex than other types of lights. Moreover, in low outdoor environments, such as below -20 degrees Celsius, the reliability of civilian-grade LED driving circuits is significantly reduced, and the lighting effect is significantly worse.
[0003] Therefore, it is necessary to design a low-temperature resistant light source to improve its operational reliability at low temperatures, so that it can function normally even at low temperatures.
[0004] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content
[0005] This invention provides a low-temperature resistant light source, which improves the reliability of the low-temperature resistant light source at low temperatures, enabling the low-temperature resistant light source to work normally at low temperatures.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A low-temperature resistant light source, comprising:
[0008] case;
[0009] LED light panel, installed in the housing;
[0010] The outer periphery of the housing is provided with an annular sealing cavity surrounding the LED light panel, and a heat insulation medium layer is provided in the annular sealing cavity.
[0011] Optionally, the housing includes a body and a transparent cover.
[0012] The main body has an internal mounting cavity, and the LED light panel is mounted in the mounting cavity.
[0013] The main body forms an annular groove surrounding the mounting cavity, and the transparent cover plate covers the opening of the annular groove to form the annular sealing cavity, and the transparent cover plate seals the opening of the mounting cavity.
[0014] Optionally, an infrared radiation heating component is installed on the back of the LED light panel;
[0015] The infrared radiation heating component is installed in the mounting cavity, and the infrared radiation heating component is spaced apart from the LED light panel.
[0016] Optionally, the low-temperature resistant light source also includes a control circuit board;
[0017] The LED light board is arrayed with several temperature sensors, and the infrared radiation heating component is divided into several heating units, with each heating unit corresponding to one of the temperature sensors; the control circuit board is electrically connected to each temperature sensor and each heating unit.
[0018] Optionally, the LED light panel is provided with a plurality of U-shaped grooves, and a U-shaped heating wire is installed in the U-shaped grooves;
[0019] The control module's control circuit board is electrically connected to each of the U-shaped heating wires.
[0020] Optionally, the LED light board includes a light-emitting circuit board and a rectangular array of LED beads mounted on the light-emitting circuit board.
[0021] Optionally, the heat insulation medium layer is an aerogel layer.
[0022] Optionally, the entire aerogel layer is cylindrical, and the LED light panel is located in the inner pore of the cylindrical aerogel layer.
[0023] Optionally, the heat insulation medium layer includes a plurality of hollow cylinders, which are arranged to form a ring structure;
[0024] The opposite sides of the hollow cylinder respectively abut against the opposite side walls of the annular sealing cavity, and the sides of two adjacent hollow cylinders are in contact with each other.
[0025] Optionally, the heat insulation medium layer fills the annular sealing cavity.
[0026] Compared with the prior art, the present invention has the following beneficial effects:
[0027] The low-temperature resistant light source provided by this utility model has a cleverly designed housing structure. The LED light board is installed inside the housing, and there is a heat insulation medium layer surrounding the LED light board in the housing. The heat insulation medium layer plays a role in heat insulation and heat preservation, so that more of the heat emitted by the LED light board can stay in the housing, thereby resisting the cold weather outside and making the temperature of the LED light board in the housing relatively higher, thereby improving the reliability of the low-temperature resistant light source at low temperatures.
[0028] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0030] Figure 1 This is a side view of the low-temperature resistant light source provided in this embodiment of the utility model;
[0031] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of a medium-low temperature resistant light source along line AA;
[0032] Figure 3 This is a three-dimensional structural diagram of the low-temperature resistant light source provided in this embodiment of the present invention when the transparent cover plate and the heat insulation medium layer are removed;
[0033] Figure 4 This is a schematic diagram of the layout structure of a heat insulation medium layer in a low-temperature resistant light source provided in this embodiment of the utility model.
[0034] Reference numerals: 1. Shell; 101. Annular sealing cavity; 11. Main body; 111. Annular groove; 12. Transparent cover plate; 2. LED light board; 201. Temperature sensor; 21. Light emission circuit board; 22. LED beads; 3. Heat insulation medium layer; 4. Infrared radiation heating component; 5. Control circuit board; 10. Hollow cylinder. Detailed Implementation
[0035] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0036] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0037] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0038] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0039] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0040] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0041] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0042] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0043] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0044] In view of the aforementioned deficiencies in existing low-temperature light sources, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with theoretical application, actively conducted research and innovation to overcome the shortcomings of existing technologies and make low-temperature light sources more practical. Through continuous research and design, and after repeated prototype production and improvements, this utility model with genuine practical value was finally created.
[0045] Please refer to Figures 1 to 3 This utility model provides a low-temperature resistant light source, including a housing 1 and an LED light panel 2.
[0046] The housing 1 serves to accommodate and support the LED light panel 2, which is installed in the mounting cavity of the housing 1. The outer periphery of the housing 1 is provided with an annular sealing cavity 101 surrounding the LED light panel 2, and a heat insulation medium layer 3 is provided in the annular sealing cavity 101.
[0047] In this embodiment, the low-temperature resistant light source cleverly designs the structure of the housing 1, with the LED light board 2 installed inside the housing 1. The housing 1 contains a heat insulation medium layer 3 surrounding the LED light board 2. The heat insulation medium layer 3 plays a role in heat insulation and heat preservation, allowing more of the heat emitted by the LED light board 2 to remain in the housing 1, thereby resisting cold weather and making the temperature of the LED light board 2 in the housing relatively higher, thus improving the reliability of the low-temperature resistant light source at low temperatures.
[0048] Optionally, the housing 1 includes a body portion 11 and a transparent cover plate 12, through which light emitted from the LED light panel 2 is directed to the location requiring illumination. A mounting cavity is formed inside the body portion 11, and the LED light panel 2 is mounted within the mounting cavity. In this embodiment, the LED light panel is located in the center of the mounting cavity.
[0049] The main body 11 forms an annular groove 111 surrounding the mounting cavity, and the transparent cover 12 covers the groove opening of the annular groove 111 to form an annular sealing cavity 101, and the transparent cover 12 seals the opening of the mounting cavity.
[0050] like Figure 2 As shown, the LED light panel 2 has a first cavity on the front side and a second cavity on the rear side, separated by the LED light panel 2. The arrangement of the first and second cavities prevents cold air from flowing directly through the LED light panel 2, thus preventing the LED light panel 2 from getting too cold.
[0051] In addition, it should be noted that the body part 11 forms an annular groove 111 surrounding the mounting cavity, which makes the installation of the heat insulation medium layer 3 simpler and easier to operate.
[0052] Optionally, an infrared radiation heating component 4 is installed on the back of the LED light panel 2; the infrared radiation heating component 4 is installed in the mounting cavity and is spaced apart from the LED light panel 2.
[0053] Specifically, the infrared radiation heating component 4 can heat the LED light panel 2, thereby enabling the LED light panel 2 to always operate within a suitable temperature range and improving the light output stability of the LED light panel 2.
[0054] Optionally, the low-temperature resistant light source also includes a control circuit board 5; the LED light board 2 is arrayed with several temperature sensors 201, and the infrared radiation heating component 4 is divided into several heating units, with each heating unit corresponding to one of the temperature sensors 201. The control circuit board 5 is electrically connected to each temperature sensor 201 and each heating unit. Specifically, the LED light board 2 is divided into multiple zones, and each zone has at least one temperature sensor 201. The control circuit board 5 can heat the LED light board 2 in zones according to the temperature detected by the temperature sensors 201, making the overall temperature of the LED light board 2 more uniform.
[0055] Optionally, the LED light panel 2 is provided with a plurality of U-shaped grooves 2001, and U-shaped heating wires are installed in the U-shaped grooves 2001; the control module control circuit board is electrically connected to each U-shaped heating wire. Specifically, the U-shaped heating wires (not shown) can increase the heating speed of the LED light panel 2.
[0056] Optionally, the LED light board 2 includes a light-emitting circuit board 21 and a rectangular array of LED beads 22 mounted on the light-emitting circuit board 21.
[0057] Optionally, the heat insulation medium layer 3 is an aerogel layer. The thermal conductivity of aerogel can be less than 0.02 W / m·K, which has good heat insulation performance and is lightweight, so as not to significantly increase the overall weight of the low-temperature light source.
[0058] Optionally, such as Figure 2 As shown, the entire aerogel layer is cylindrical, and the LED light panel 2 is located in the inner pore of the cylindrical aerogel layer.
[0059] Optionally, such as Figure 4 As shown, the heat insulation medium layer 3 includes a plurality of hollow cylinders 10, which are arranged to form an annular structure; the opposite sides of the hollow cylinders 10 respectively abut against the opposite side walls of the annular sealing cavity 101, and the sides of two adjacent hollow cylinders 10 are in contact with each other. Figure 4 The structure of multiple hollow cylinders 10 arranged in a ring for heat preservation can divide the annular sealed cavity 101 into multiple small heat preservation cavities, thereby significantly improving the heat preservation effect.
[0060] Optionally, such as Figure 2 As shown, the heat insulation medium layer 3 fills the annular sealing cavity 101.
[0061] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. A low-temperature resistant light source, characterized in that, include: Shell (1); LED light panel (2) is installed in the housing (1); The outer periphery of the housing (1) is provided with an annular sealing cavity (101) surrounding the LED light panel (2), and a heat insulation medium layer (3) is provided in the annular sealing cavity (101). The heat insulation medium layer (3) is an aerogel layer.
2. The low-temperature resistant light source according to claim 1, characterized in that, The housing (1) includes a body (11) and a transparent cover (12). The body part (11) has an internal mounting cavity, and the LED light panel (2) is installed in the mounting cavity; The main body (11) forms an annular groove (111) surrounding the mounting cavity, and the transparent cover (12) covers the groove of the annular groove (111) to form the annular sealing cavity (101), and the transparent cover (12) seals the opening of the mounting cavity.
3. The low-temperature resistant light source according to claim 2, characterized in that, An infrared radiation heating component (4) is installed on the back of the LED light panel (2); The infrared radiation heating component (4) is installed in the mounting cavity, and the infrared radiation heating component (4) is spaced apart from the LED light panel (2).
4. The low-temperature resistant light source according to claim 3, characterized in that, It also includes the control circuit board (5); The LED light panel (2) is arrayed with several temperature sensors (201), and the infrared radiation heating component (4) is divided into several heating units, with each heating unit corresponding to one of the several temperature sensors (201). The control circuit board (5) is electrically connected to each of the temperature sensors (201) and each of the heating units.
5. The low-temperature resistant light source according to claim 4, characterized in that, The LED light panel (2) is provided with a plurality of U-shaped grooves (2001), and U-shaped heating wires are installed in the U-shaped grooves (2001); The control circuit board (5) is electrically connected to each of the U-shaped heating wires.
6. The low-temperature resistant light source according to claim 1, characterized in that, The LED light board (2) includes a light-emitting circuit board (21) and a rectangular array of LED beads (22) mounted on the light-emitting circuit board (21).
7. The low-temperature resistant light source according to claim 1, characterized in that, The entire aerogel layer is cylindrical, and the LED light panel (2) is located in the inner hole of the cylindrical aerogel layer.
8. The low-temperature resistant light source according to claim 1, characterized in that, The heat insulation medium layer (3) includes a plurality of hollow cylinders (10), and the plurality of hollow cylinders (10) are arranged to form a ring structure; The two opposite sides of the hollow cylinder (10) respectively abut against the opposite side walls of the annular sealing cavity (101), and the sides of two adjacent hollow cylinders (10) are in contact with each other.
9. The low-temperature resistant light source according to claim 1, characterized in that, The heat insulation medium layer (3) fills the annular sealing cavity (101).