A lamp head structure of an emergency light
By introducing a high-efficiency heat dissipation port and a double sealing ring design into the lamp head structure of the emergency light, the problems of insufficient heat dissipation and sealing in the existing technology are solved, achieving effective heat dissipation and sealing protection, and ensuring normal operation of the equipment and lighting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN HAOTIAN ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-14
AI Technical Summary
The existing lamp head structure makes it difficult to balance heat dissipation and sealing, allowing external dust and impurities to easily enter the equipment and affect its operation.
By adopting a high-efficiency heat dissipation port design and a double-seal ring layered sealing structure, the heat dissipation and sealing protection of the light source aluminum substrate are achieved by setting a rectangular heat dissipation port on the outer wall of the inner shell and cooperating with an irregular ring-shaped first sealing ring and a ring-shaped second sealing ring.
It effectively resolves the conflict between heat dissipation and sealing, ensuring that the inside of the equipment is not invaded by dust and water stains, extending the equipment's lifespan and improving the lighting effect.
Smart Images

Figure CN224498451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of emergency lighting equipment technology, specifically to a lamp holder structure for an emergency light. Background Technology
[0002] Emergency lights are lighting fixtures that can quickly and automatically start and provide illumination when the normal lighting power supply is suddenly interrupted (such as in emergency situations like power outages or fires). Their core function is to provide necessary light support for personnel evacuation, emergency operations, or rescue work in emergencies. They typically use batteries as backup power sources and feature automatic switching, continuous lighting time that meets standards, and fixed installation locations (such as near evacuation routes or safety exits). They are important emergency facilities for ensuring public safety and the safety of people's lives.
[0003] The lamp holder is the main component of an emergency light. However, the existing lamp holder structure still has defects. For example, in order to meet the heat dissipation capacity, heat dissipation holes need to be opened on the outer shell, which makes the sealing poor. External dust and impurities can easily enter the equipment and hinder its operation. It is difficult to balance heat dissipation and sealing. Therefore, we need to propose a lamp holder structure for emergency lights. Utility Model Content
[0004] The purpose of this utility model is to provide a lamp head structure for an emergency light. Through the efficient heat dissipation design of the heat dissipation port, combined with the double sealing ring layered sealing protection, it breaks through the contradiction that heat dissipation and sealing cannot be achieved simultaneously in traditional lamp heads, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An emergency light head structure includes:
[0007] The lamp holder includes an inner shell and an outer shell. The bottom of the inner shell is integrally formed with a mounting part. The outer shell is installed on one side of the inner shell by snap-fit. A light source aluminum substrate is installed inside the inner shell by fixing screws. LED beads are symmetrically distributed on the light source aluminum substrate.
[0008] A heat dissipation structure is provided on the outer wall of the inner shell. The heat dissipation structure includes multiple sets of heat dissipation vents. The heat dissipation vents are arranged in a rectangular pattern and are distributed in an equidistant array on the outer wall of the inner shell. The heat dissipation vents expose the outer wall of the light source aluminum substrate to air for heat dissipation.
[0009] Preferably, the inner shell of the light source aluminum substrate is provided with a wire harness channel for the wire harness to pass through, and a corresponding wire harness hole is opened on the light source aluminum substrate. After the wire harness passes through the wire harness channel and the wire harness hole, it supplies power to the lamp beads. The wire harness can block the wire harness channel and the wire harness hole to prevent external dust and water stains from easily entering the device.
[0010] Preferably, it also includes a light-concentrating cover, which is integrally formed on the inner wall of the outer shell. The light-concentrating cover and the lamp beads correspond one-to-one. After the outer shell and the inner shell are assembled, the lamp beads are inserted into the interior of the light-concentrating cover and the light is concentrated by the light-concentrating cover.
[0011] Preferably, the inner wall of the light source aluminum substrate is provided with screw holes, and the light source aluminum substrate is provided with corresponding mounting holes. After the fixing screw passes through the mounting holes, it is threaded into the screw holes to assemble and fix the light source aluminum substrate and the inner shell.
[0012] Preferably, it also includes a first sealing ring disposed between the light source aluminum substrate and the inner shell. The first sealing ring adopts an irregular ring-shaped design that excludes the wire harness hole and the mounting hole.
[0013] The inner wall of the inner shell is provided with a first sealing groove that matches the first sealing ring. When the light source aluminum substrate and the inner shell are assembled, the first sealing ring is pressed into the interior of the first sealing groove, thereby sealing the light source aluminum substrate.
[0014] Preferably, it also includes a second sealing ring disposed around the aluminum substrate of the light source, and the second sealing ring is designed in a ring shape;
[0015] The outer shell and the inner shell are provided with a second sealing groove that matches the second sealing ring. The second sealing groove surrounds the light source aluminum substrate and the first sealing ring. When the outer shell, the inner shell and the light source aluminum substrate are assembled, the two sides of the second sealing ring are pressed into the second sealing grooves of the inner walls of the outer shell and the inner walls of the inner shell, thereby sealing the light source aluminum substrate inside to prevent it from contacting external dust and water stains.
[0016] Preferably, it also includes locking blocks, symmetrically arranged on the top and bottom outer walls of the inner shell, with corresponding slots on the top and bottom of the outer shell, so that the locking blocks can be engaged with the slots when the outer shell and the inner shell are assembled.
[0017] Preferably, it also includes fins, which are integrally formed and distributed on the outer wall of the inner shell. The fins and heat dissipation vents are arranged in parallel, and each set of fins corresponds to a set of heat dissipation vents. The fins and the inner shell are integrally formed aluminum alloy structures, and the fins can assist the equipment in heat dissipation.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] Heat dissipation is achieved by setting heat dissipation vents on the outer wall of the inner shell. A first sealing ring is set between the light source aluminum substrate and the inner shell. Through its irregular ring design, it cooperates with the first sealing groove to seal the light source aluminum substrate (only the heat dissipation surface of the light source aluminum substrate can contact the external air). A second sealing ring is set on the periphery of the light source aluminum substrate. Through cooperation with the second sealing groove on the inner wall of the outer shell and the inner shell, the light source aluminum substrate is sealed inside, further preventing it from contacting external dust and water stains, enhancing the sealing performance, and effectively solving the problem that the existing lamp head structure is difficult to balance heat dissipation and sealing. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is an exploded view of the present invention;
[0022] Figure 3 This is a schematic diagram of the inner shell of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the first sealing ring of this utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the outer shell of this utility model;
[0025] Figure 6 This is a schematic diagram of the heat dissipation port of this utility model.
[0026] In the figure: 1. Inner shell; 2. Outer shell; 3. Aluminum substrate for light source; 4. Lamp bead; 5. Concentrator cover; 6. Locking block; 7. Locking slot; 8. Heat dissipation port; 9. First sealing groove; 10. First sealing ring; 11. Second sealing ring; 12. Second sealing groove; 13. Fin. Detailed Implementation
[0027] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figure 1-6 This utility model provides a technical solution:
[0029] An emergency light head structure includes:
[0030] The lamp holder includes an inner shell 1 and an outer shell 2. The bottom of the inner shell 1 is integrally formed with a mounting section. The outer shell 2 is installed on one side of the inner shell 1 via a snap-fit mechanism. A light source aluminum substrate 3 is installed inside the inner shell 1 using fixing screws. LED beads 4 are symmetrically distributed on the light source aluminum substrate 3. The inner shell 1 has a wire harness channel for the wire harness to pass through, and corresponding wire harness holes are provided on the light source aluminum substrate 3. The wire harness supplies power to the LED beads 4 after passing through the wire harness channel and wire harness holes. The wire harness can seal the wire harness channel and wire harness holes to prevent external dust and water stains from easily entering the device. The inner wall of the light source aluminum substrate 3 has screw holes, and corresponding mounting holes are provided on the light source aluminum substrate 3. Fixing screws pass through the mounting holes and are threaded into the screw holes to assemble and fix the light source aluminum substrate 3 and the inner shell 1.
[0031] The inner shell 1 and the outer shell 2 are assembled by snap-fit. The mounting part at the bottom of the inner shell 1 is used to fix the lamp head as a whole. The light source aluminum substrate 3 is installed in the inner shell 1 by fixing screws. The lamp beads 4 on it are powered by a wiring harness. The wiring harness passes through the wiring harness channel of the inner shell 1 and the wiring harness hole of the light source aluminum substrate 3, and the wiring harness itself fills the channel. The fixing screws pass through the mounting hole of the light source aluminum substrate 3 and are threaded into the screw hole of the inner shell 1 to achieve rigid fixation between the light source aluminum substrate 3 and the inner shell 1.
[0032] In summary, the inner shell 1 and the outer shell 2 constitute the protective shell 2 of the lamp holder, and the light source aluminum substrate 3 provides an installation carrier for the lamp beads 4; the cooperation between the wiring harness channel and the wiring harness hole achieves preliminary sealing while supplying power, reducing the intrusion of dust and water stains; the screw fixation ensures that the light source aluminum substrate 3 is installed firmly, and prevents the lamp beads 4 from being displaced due to vibration, thus affecting the lighting.
[0033] Please see Figure 1-6 :
[0034] The heat dissipation structure is set on the outer wall of the inner shell 1. The heat dissipation structure includes multiple sets of heat dissipation ports 8. The heat dissipation ports 8 are arranged in a rectangular shape and are distributed in an equidistant array on the outer wall of the inner shell 1. The heat dissipation ports 8 expose the outer wall of the light source aluminum substrate 3 to air for heat dissipation.
[0035] Multiple sets of rectangular, equidistantly arranged heat dissipation vents 8 are provided on the outer wall of the inner shell 1, exposing the outer wall of the light source aluminum substrate 3 (low voltage) to the air. The heat generated by the light source aluminum substrate 3 is dissipated by air convection. This meets the heat dissipation requirements of the lamp head structure, ensuring that the heat generated by the lamp beads 4 can be dissipated in a timely manner, maintaining the normal operating temperature of the equipment.
[0036] For a preferred embodiment, please refer to Figure 6 :
[0037] It also includes fins 13, which are integrally formed and distributed on the outer wall of the inner shell 1. The fins 13 and the heat dissipation vents 8 are arranged in parallel, and each set of fins 13 corresponds to a set of heat dissipation vents 8. The fins 13 and the inner shell 1 are integrally formed aluminum alloy structures. The fins 13 can assist the equipment in heat dissipation.
[0038] The aluminum alloy fins 13 are integrally formed and distributed in parallel with the heat dissipation vents 8. Each set of fins 13 corresponds to a set of heat dissipation vents 8. The high thermal conductivity of metal is used to expand the heat dissipation area and accelerate heat transfer. The fins 13 work together to improve heat dissipation efficiency and ensure that the working temperature of the LED bead 4 is within the normal range. The aluminum alloy material has both structural strength and thermal conductivity, which extends the service life of the LED bead 4.
[0039] For a preferred embodiment, please refer to Figure 1-5 :
[0040] It also includes a first sealing ring 10 (or potting compound), which is disposed between the light source aluminum substrate 3 and the inner shell 1. The first sealing ring 10 adopts an irregular ring design that excludes the wire harness hole and the mounting hole. The inner wall of the inner shell 1 is provided with a first sealing groove 9 that is adapted to the first sealing ring 10 (or potting compound). When the light source aluminum substrate 3 and the inner shell 1 are assembled, the first sealing ring 10 is pressed into the interior of the first sealing groove 9 to seal the light source aluminum substrate 3.
[0041] A first sealing ring 10 (or potted with adhesive) in the shape of an irregular ring avoids the wire harness hole and mounting hole, and is embedded in the first sealing groove 9 on the inner wall of the inner shell 1. When the light source aluminum substrate 3 is assembled with the inner shell 1, the sealing ring is squeezed and deformed, filling the gap between the light source aluminum substrate 3 and the inner shell 1, so that only the heat dissipation surface of the light source aluminum substrate 3 can contact the outside air. It specifically seals the contact gap between the light source aluminum substrate 3 and the inner shell 1, preventing dust and water stains from entering from around the screw holes or wire harness holes, while avoiding the sealing ring from interfering with screw fixing or wire harness passage, forming the first layer of sealing protection.
[0042] For a preferred embodiment, please refer to Figure 1-5 :
[0043] It also includes a second sealing ring 11, which is disposed around the aluminum substrate 3 of the light source. The second sealing ring 11 is designed in a ring shape. The inner walls of the outer shell 2 and the inner shell 1 are provided with a second sealing groove 12 that is adapted to the second sealing ring 11. The second sealing groove 12 surrounds the aluminum substrate 3 of the light source and the first sealing ring 10 (or potting). When the outer shell 2, the inner shell 1 and the aluminum substrate 3 of the light source are assembled, the two sides of the second sealing ring 11 are pressed into the second sealing groove 12 of the inner wall of the outer shell 2 and the inner wall of the inner shell 1, respectively, thereby sealing the aluminum substrate 3 of the light source inside to prevent it from contacting external dust and water stains.
[0044] The ring-shaped second sealing ring 11 is embedded in the second sealing groove 12 on the inner wall of the outer shell 2 and the inner shell 1 (the groove surrounds the light source aluminum substrate 3 and the first sealing ring 10 (or potting)). When the outer shell 2 and the inner shell 1 are snapped together, the two sides of the sealing ring are squeezed, completely sealing the internal space where the light source aluminum substrate 3 is located. A second layer of full-area sealing is formed on the basis of the first sealing ring 10 (or potting), which isolates the light source aluminum substrate 3 from the external environment, improves the protection level, solves the problem of poor sealing caused by traditional heat dissipation holes, and ensures that the internal components are not invaded.
[0045] In summary, the heat dissipation vent allows a large area of the outer wall of the light source's aluminum substrate to directly contact the outside air, facilitating heat exchange between the aluminum substrate and the external air. Through the efficient heat dissipation design of the vent, coupled with double-ring sealing for layered protection, the product's heat dissipation structure is streamlined, reducing costs while resolving the inherent contradiction between low-cost heat dissipation (direct heat exchange between the light source's aluminum substrate and the external air) and waterproof sealing in traditional emergency lighting fixtures.
[0046] For a preferred embodiment, please refer to Figure 5 :
[0047] It also includes a light-concentrating cover 5, which is integrally formed on the inner wall of the outer shell 2. The light-concentrating cover 5 and the lamp beads 4 correspond one-to-one. After the outer shell 2 and the inner shell 1 are assembled, the lamp beads 4 are inserted into the interior of the light-concentrating cover 5 and the light is concentrated by the light-concentrating cover 5.
[0048] The integrated light-concentrating cover 5 on the inner wall of the outer shell 2 corresponds one-to-one with the lamp beads 4. After the lamp beads 4 are inserted into the cover, the light-concentrating cover 5 focuses the light through curved surface reflection, reducing scattering; thereby improving the light concentration, enhancing the lighting brightness, ensuring the effective illumination range during emergency lighting, and meeting the functional requirements of "directional high brightness" for emergency lights.
[0049] For a preferred embodiment, please refer to Figure 5-6 :
[0050] It also includes a locking block 6, which is symmetrically arranged on the top and bottom outer walls of the inner shell 1. The top and bottom of the outer shell 2 are respectively provided with a locking slot 7. When the outer shell 2 and the inner shell 1 are assembled, the locking block 6 is inserted into the inside of the locking slot 7.
[0051] The locking blocks 6 at the top and bottom of the inner shell 1 cooperate with the corresponding locking slots 7 on the outer shell 2. During assembly, the locking blocks 6 elastically deform and snap into the locking slots 7, forming a detachable rigid connection. This can replace the traditional screw connection, enabling quick assembly and disassembly of the outer shell 2 and the inner shell 1, which is convenient for later maintenance. The snap-fit structure ensures that the outer shell 2 is installed firmly and avoids sealing failure.
[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A lamp holder structure for an emergency light, characterized in that, include: The lamp head includes an inner shell (1) and an outer shell (2). The bottom of the inner shell (1) is integrally formed with an installation part. The outer shell (2) is installed on one side of the inner shell (1) by snap-fit. The light source aluminum substrate (3) is installed inside the inner shell (1) by fixing screws. The light source aluminum substrate (3) has LED beads (4) symmetrically distributed on it. A heat dissipation structure is provided on the outer wall of the inner shell (1). The heat dissipation structure includes multiple sets of heat dissipation ports (8). The heat dissipation ports (8) are arranged in a rectangular shape. The multiple sets of heat dissipation ports (8) are distributed in an equidistant array on the outer wall of the inner shell (1). The heat dissipation ports (8) expose the outer wall of the light source aluminum substrate (3) to air for heat dissipation.
2. The lamp holder structure of an emergency light according to claim 1, characterized in that: The inner shell (1) of the light source aluminum substrate (3) is provided with a wire harness channel for the wire harness to pass through. The light source aluminum substrate (3) is provided with a wire harness hole. The wire harness provides power to the lamp bead (4) after passing through the wire harness channel and the wire harness hole. The wire harness can block the wire harness channel and the wire harness hole to prevent external dust and water stains from easily entering the device.
3. The lamp holder structure of an emergency light according to claim 1, characterized in that: It also includes a light-concentrating cover (5), which is integrally formed on the inner wall of the outer shell (2). The light-concentrating cover (5) and the lamp beads (4) correspond one-to-one. After the outer shell (2) and the inner shell (1) are assembled, the lamp beads (4) are inserted into the inside of the light-concentrating cover (5) and the light is concentrated by the light-concentrating cover (5).
4. The lamp holder structure of an emergency light according to claim 1, characterized in that: The inner wall of the light source aluminum substrate (3) is provided with screw holes, and the light source aluminum substrate (3) is provided with corresponding mounting holes. After the fixing screw passes through the mounting hole, it is threaded into the screw hole to assemble and fix the light source aluminum substrate (3) and the inner shell (1).
5. The lamp holder structure of an emergency light according to claim 4, characterized in that: It also includes a first sealing ring (10), which is disposed between the light source aluminum substrate (3) and the inner shell (1). The first sealing ring (10) adopts an irregular ring design that excludes the wire harness hole and the mounting hole. The inner wall of the inner shell (1) is provided with a first sealing groove (9) that is compatible with the first sealing ring (10). When the light source aluminum substrate (3) and the inner shell (1) are assembled, the first sealing ring (10) is pressed into the interior of the first sealing groove (9) to seal the light source aluminum substrate (3).
6. The lamp holder structure of an emergency light according to claim 5, characterized in that: It also includes a second sealing ring (11), which is disposed around the aluminum substrate (3) of the light source. The second sealing ring (11) is designed in a ring shape. The inner walls of the outer shell (2) and the inner shell (1) are provided with a second sealing groove (12) that is compatible with the second sealing ring (11). The second sealing groove (12) surrounds the light source aluminum substrate (3) and the first sealing ring (10). When the outer shell (2), the inner shell (1) and the light source aluminum substrate (3) are assembled, the two sides of the second sealing ring (11) are pressed into the second sealing groove (12) of the inner wall of the outer shell (2) and the inner wall of the inner shell (1) respectively, thereby sealing the light source aluminum substrate (3) inside to prevent it from contacting dust and water stains from the outside.
7. The lamp holder structure of an emergency light according to claim 1, characterized in that: It also includes a locking block (6), which is symmetrically arranged on the top and bottom outer walls of the inner shell (1). The top and bottom of the outer shell (2) are respectively provided with a locking slot (7). When the outer shell (2) and the inner shell (1) are assembled, the locking block (6) is inserted into the inside of the locking slot (7).
8. The lamp holder structure of an emergency light according to claim 1, characterized in that: It also includes fins (13), which are integrally formed and distributed on the outer wall of the inner shell (1). The fins (13) and the heat dissipation vents (8) are arranged in parallel, and each set of fins (13) corresponds to a set of heat dissipation vents (8). The fins (13) and the inner shell (1) are integrally formed aluminum alloy structures. The fins (13) can assist the equipment in heat dissipation.