High-temperature resistant, energy-saving, explosion-proof lighting lamp and its manufacturing method
By using thermally conductive potting compound and vibration injection process in explosion-proof lamps, a direct heat conduction path is established, solving the problem of low heat dissipation efficiency in traditional explosion-proof lamps. This achieves improved high-efficiency heat dissipation and high-temperature resistance, extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DONGGUAN PAN AMERICAN ELECTRONICS CO LTD
- Filing Date
- 2026-03-05
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional explosion-proof lights have low heat dissipation efficiency and poor high-temperature resistance. There is an air gap between the driver power supply and the housing wall of the driver box, which prevents heat from being transferred efficiently, affecting power supply stability and service life.
The heat sink cavity is filled with thermally conductive potting compound. By combining vibration injection and two-step pressure injection processes, a direct and efficient heat conduction path is established. Heat dissipation is accelerated through heat sinks and ventilation slots on the lamp cover. Unique limiting components are designed to ensure that the potting compound tightly wraps the drive unit.
It significantly improves the heat dissipation efficiency, shock resistance, and moisture resistance of explosion-proof lights, extends their service life, and ensures long-term reliable operation in high-temperature environments.
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Figure CN122129680A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of energy-saving lighting lamps, in particular to a high-temperature-resistant energy-saving lighting explosion-proof lamp and a manufacturing method thereof. BACKGROUND
[0002] The explosion-proof lamp is a special lighting device used in an environment with flammable and explosive gas or dust, such as petroleum, chemical industry, and coal mine.
[0003] To ensure explosion-proof safety, the explosion-proof lamp usually has a sealed shell structure. When the explosion-proof lamp is used for lighting in an environment with a temperature as high as 70-80℃, such as a steel mill, an oil refinery, or a glass factory, not only is the ambient temperature high, but also a large amount of heat is generated during the light emission of the light source. In order to avoid the influence of heat on the driving power supply, maintain the power supply stability and service life of the explosion-proof lamp, the driving power supply of the explosion-proof lamp is usually arranged separately from the light source in the prior art, and is arranged in a separate driving box. The heat generated by the driving power supply is taken away through the heat dissipation fins on the outer wall of the driving box.
[0004] However, there is an air gap between the driving power supply and the shell wall of the driving box, so that the heat generated by the driving power supply during operation cannot be transmitted to the driving box shell through a direct and efficient heat conduction path, and then dissipated to the outside through the heat dissipation fins. There is a technical problem of low heat dissipation efficiency and poor high-temperature resistance of the explosion-proof lamp. SUMMARY
[0005] Therefore, it is necessary to provide a high-temperature-resistant energy-saving lighting explosion-proof lamp with excellent heat dissipation performance and high reliability and a manufacturing method thereof to solve the problems of low heat dissipation efficiency and poor high-temperature resistance of the existing explosion-proof lamp.
[0006] A high-temperature-resistant energy-saving lighting explosion-proof lamp includes a lampshade, a heat dissipation box, a light source, and a driving unit. The lampshade includes a shade body for mounting the light source and a partition frame connected to one end of the lampshade away from the light source. The heat dissipation box is connected to the partition frame and includes a box body, a box cover, and a limiting piece. The box body is provided with a receiving cavity for accommodating the driving unit. The box cover is provided with a glue injection hole and an exhaust hole. The box cover is sealingly connected to the box body to form a closed filling cavity. The filling cavity is in communication with the outside through the glue injection hole and the exhaust hole. The limiting piece is arranged on the box cover and provides an elastic force to the driving unit to press it tightly in the box body. The filling cavity is filled with temperature-conducting filling glue.
[0007] In one of the embodiments, the cover body comprises a lamp disc, a plurality of first heat dissipation fins and a support ring, the lamp disc is provided with lamp slots for mounting the light sources, each of the first heat dissipation fins is connected to the lamp disc at intervals around the axis of the lamp disc, and the support ring is connected to one end of each of the first heat dissipation fins away from the lamp disc.
[0008] In one of the embodiments, the first heat dissipation fin comprises a first connecting part connected to the lamp disc and a first adapter part connected to the support ring, and the first adapter parts of two adjacent first heat dissipation fins, the lamp disc and the support ring jointly form a ventilation slot.
[0009] In one of the embodiments, the box body comprises a box and a second heat dissipation fin arranged around the outer wall of the box, and the box is provided with the accommodation cavity.
[0010] In one of the embodiments, the box cover comprises a cover and a third heat dissipation fin arranged around the outer wall of the cover, the cover is provided with the glue injection hole, the exhaust hole and a mounting slot 221c for mounting the limiting member, and the glue injection hole and the exhaust hole are respectively provided with detachable sealing plugs.
[0011] A manufacturing method of the above-mentioned high-temperature-resistant energy-saving lighting explosion-proof lamp, comprising the following steps: S10, assembling a heat dissipation box semi-finished product: providing a box body, a driving unit and a box cover, placing the driving unit in the accommodation cavity of the box body, sealingly connecting the box cover and the box body to form a potting cavity with a glue injection hole and an exhaust hole, and obtaining a heat dissipation box semi-finished product; S20, sealing detection: filling gas into the potting cavity through the glue injection hole for pressure maintaining detection; S30, vibration glue injection: after the pressure maintaining detection is qualified, fixing the heat dissipation box semi-finished product on a vibration platform, opening the exhaust hole, injecting temperature-guiding potting glue into the potting cavity through the glue injection hole, and starting the vibration platform during the glue injection process; S40, glue solidification: after the glue injection is completed, placing the heat dissipation box semi-finished product to allow the temperature-guiding potting glue to solidify.
[0012] In one of the embodiments, the step S20 comprises: filling gas into the potting cavity through the glue injection hole, so that the internal gas pressure reaches 1.1 to 1.3 times of the standard atmospheric pressure, and the pressure is maintained for 5 seconds or more to verify the sealing property.
[0013] In one of the embodiments, in the step S30, starting the vibration platform comprises: setting the vibration frequency of the vibration platform in the range of 200 Hz to 500 Hz, and setting the vibration amplitude in the range of 0.05 mm to 0.2 mm.
[0014] In one embodiment, step S30 includes the following sub-steps: with the vibration platform started and the vent hole open, a first preset amount of the thermally conductive potting compound is injected through the injection hole; subsequently, the vent hole is closed; while maintaining the operation of the vibration platform, a second preset amount of the thermally conductive potting compound is injected through the injection hole, and the pressure inside the potting cavity is maintained at 1.1 to 1.3 times the standard atmospheric pressure for 20 to 60 seconds.
[0015] In one embodiment, the first preset amount is 90% to 95% of the filling cavity volume, and the second preset amount is 5% to 10% of the filling cavity volume.
[0016] The aforementioned high-temperature resistant, energy-saving explosion-proof lighting lamp and its manufacturing method, by filling the potting cavity of the heat sink box with thermally conductive potting compound, replaces the traditional air gap, establishing a direct and efficient heat conduction path for the drive unit. This allows the heat generated by the drive unit to be quickly conducted to the box body, cover, and second and third heat sinks, thereby significantly improving heat dissipation efficiency. Simultaneously, the unique combination of vibration injection and two-step pressure injection effectively eliminates air bubbles in the potting compound, ensuring that the potting compound completely fills the cavity and tightly wraps the drive unit. This not only further improves the uniformity and efficiency of heat conduction but also enhances the drive unit's shock resistance, moisture resistance, and insulation performance, thus significantly improving the long-term reliability and service life of the explosion-proof lamp in harsh environments such as high temperature and high humidity. The first heat sink and ventilation slots designed on the lampshade also facilitate the rapid dissipation of heat from the light source, achieving comprehensive and efficient heat dissipation for the entire lamp. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the high-temperature resistant, energy-saving, explosion-proof lighting lamp described in this invention; Figure 2 for Figure 1 An exploded view of the high-temperature resistant, energy-saving, explosion-proof lighting lamp described above; Figure 3 for Figure 1 A cross-sectional schematic diagram of the heat sink box mounting drive unit of the high-temperature resistant energy-saving explosion-proof lighting lamp; Figure 4 This is a flowchart of the manufacturing method of the high-temperature resistant energy-saving explosion-proof lighting lamp described in this invention.
[0018] The meanings of the numbers in the attached diagram are as follows: 100. High-temperature resistant, energy-saving, explosion-proof lighting lamp; 10. Lampshade; 11. Cover body; 111. Lamp panel; 111a. Lamp trough; 112. First heat sink; 112a. First connecting part; 112b. First adapter part; 113. Support ring; 114. Ventilation slot; 12. Spacer; 20. Heat sink box; 21. Box body; 211. Box body; 211a. Receiving cavity; 212. Second heat sink; 22. Box cover; 221. Cover body; 221a. Injection hole; 221b. Vent hole; 222. Third heat sink; 223. Sealing plug; 23. Limiting component; 24. Encapsulation cavity; 30. Light source; 40. Drive unit. Detailed Implementation
[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "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 accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0025] like Figure 1 As shown, this is a high-temperature resistant, energy-saving, explosion-proof lighting lamp 100 according to an embodiment of the present invention. The lamp includes a lampshade 10, a heat sink 20, a light source 30, and a driving unit 40. The light source 30 is an LED lamp panel, including an aluminum substrate, an LED chip array soldered thereon, and a light distribution lens. The driving unit 40 is an LED driver electrically matched with the LED lamp panel, used to convert AC mains power into stable DC power. The light source 30 is installed in the lampshade 10, and the driving unit 40 is housed in the heat sink 20 and electrically connected to the light source 30 through wires. The lampshade 10 and the heat sink 20 are fixedly connected by a partition 12 to achieve physical separation and coordinated heat dissipation.
[0026] like Figure 1 and Figure 2 As shown, the lampshade 10 includes a cover body 11 and a partition 12. The cover body 11 is made of a high thermal conductivity die-cast aluminum alloy, for example, the high thermal conductivity die-cast aluminum alloy can be selected as ADC12, for mounting the light source 30. The partition 12 is welded and fixed to the end of the cover body 11 away from the light source 30, for connecting the heat sink 20 and blocking the heat from the light source 30 from directly radiating to the drive unit 40.
[0027] Furthermore, the cover 11 includes a lamp disk 111, a plurality of first heat sinks 112, and a support ring 113. The lamp disk 111 has a lamp groove 111a at its center, and the light source 30 is fixed therein by thermal grease and screws. Each first heat sink 112 is evenly spaced around the axis of the lamp disk 111 and is integrally cast with it. The support ring 113 is welded to the far end of each first heat sink 112 to enhance the overall structural rigidity. Each first heat sink 112 includes a first connecting part 112a connecting the lamp disk 111 and a first transition part 112b connecting the support ring 113. The first transition parts 112b of two adjacent first heat sinks 112, the lamp disk 111, and the support ring 113 together form a ventilation groove 114 that diffuses from the inside out, effectively utilizing natural air convection and significantly improving the passive heat dissipation efficiency of the light source 30.
[0028] like Figure 1 and Figure 2 As shown, the heat sink 20 and the spacer 12 are connected by flange bolts, as... Figure 3 As shown, the heat sink 20 includes a body 21, a cover 22, and a limiting member 23. Both the body 21 and the cover 22 are made of high thermal conductivity die-cast aluminum alloy. The body 21 has a receiving cavity 211a to accommodate the drive unit 40. The mating surface between the cover 22 and the body 21 is machined with a sealing groove, and an O-ring of silicone rubber is embedded inside. Multiple bolts are used to fasten the sealant to form an airtight filling cavity 24. The cover 22 has an injection hole 221a and an vent hole 221b, and the injection hole 221a and the vent hole 221b are on the same surface. The vent hole 221b is equipped with a one-way vent valve, which has a spring-pressed sealing cone inside. The head allows the gas inside the cavity to push open the seal and escape under positive pressure, but prevents the glue from leaking and the external medium from invading in the reverse direction. The limiting member 23 is a stainless steel shockproof compression spring. Its upper part is snapped and fixed in the mounting groove (not shown) of the box cover 22, and its lower part abuts against the housing of the drive unit 40. Its elasticity presses the drive unit 40 tightly against the positioning ribs on the inner wall of the box body 21, eliminating the macroscopic air gap between the two to the greatest extent. The potting cavity 24 is filled with thermally conductive potting glue (not shown). After the process is completed, the glue injection hole 221a and the vent hole 221b are respectively sealed with brass sealing plugs 223 with copper gaskets.
[0029] Furthermore, the box body 21 includes a box body 211 and a plurality of second heat sinks 212 integrally formed on its outer wall, and the box cover 22 includes a cover body 221 and a plurality of third heat sinks 222 integrally formed on its outer wall. The second and third heat sinks have a radial fin structure, which greatly increases the contact area with air.
[0030] like Figure 4 As shown, the manufacturing method of the high-temperature resistant energy-saving explosion-proof lighting lamp 100 of the present invention includes the following steps: S10. Assemble the semi-finished heat sink box 20: Connect the input and output cables of the drive unit 40 and place it in the receiving cavity 211a of the box body 21. Insert the limiting member 23, i.e. the spring, into the mounting groove of the box cover 22. Place the sealing ring in the sealing groove of the box body 21. Then align the box cover 22 with the box body 21 and tighten the bolts in a diagonal sequence to form a completely sealed potting cavity 24. During assembly, install a one-way exhaust valve on the exhaust port 221b and keep it in the closed state. Keep the glue injection port 221a open. At the same time, complete the assembly of the lampshade 10 at another station: install the light source 30 into the lamp groove 111a of the lampshade 10 and tighten it. S20. Sealing test: Connect the air filling device through the glue injection hole 221a and fill the potting cavity 24 with dry compressed air or nitrogen. Slowly increase the pressure inside the cavity to 1.2 times the standard atmospheric pressure. Hold the pressure and observe for at least 5 seconds. If the pressure does not drop when monitored by a precision pressure gauge, the semi-finished heat sink box 20 is deemed to have qualified sealing and can enter the core potting process. This step ensures the basic reliability of subsequent processes. S30, Vibration potting: Used for potting to remove air bubbles, improve density, and ensure an intact heat conduction path; First, S31 performs pretreatment of the potting compound: a two-component high thermal conductivity epoxy resin potting compound is selected, such as product LD-2017A / B. Component A mainly contains epoxy resin and a high proportion of alumina thermally conductive filler, while component B is a modified amine curing agent. Under a constant temperature environment of 25℃±2℃, components A and B are accurately weighed at a weight ratio of 4:1. Component B is poured into component A, and a planetary mixer is used to stir at a speed of 400 rpm for 4-5 minutes until the mixture is uniform in color. Then, the mixed adhesive is transferred to a vacuum degassing machine and treated under a vacuum of -0.098MPa for 5-8 minutes until the bubbles on the liquid surface are completely eliminated. The viscosity of the pretreated adhesive at 25℃ is approximately 4000 cP•s, and the working time is approximately 40-50 minutes.
[0031] Secondly, S32 sets the equipment and parameters: the parameters of the high-frequency linear vibration platform are set as follows: vibration frequency 300Hz to 400Hz, amplitude 0.1mm. This parameter combination can produce the best micro-shear and acceleration effect on medium viscosity adhesives, effectively promoting bubble desorption and floating. The output pressure of the gear pump dispensing machine is set to 1.2 times the standard atmospheric pressure. Based on the precise geometric volume of the potting cavity 24, for example 970mL, the first dispensing volume is set to 920mL, which accounts for about 95% of the total volume, and the second dispensing volume is set to 50mL.
[0032] Next, S33 performs the first injection: the sealed heat sink box 20 semi-finished product is fixed on the activated vibration platform using a non-magnetic clamp, the one-way exhaust valve of the exhaust port 221b is turned to the open position, and the flat nozzle of the glue gun with a diameter of 4mm is tightly inserted into the glue injection hole 221a. Under the condition of continuous operation of the vibration platform, the first preset amount, namely 920mL of thermally conductive potting compound, is injected at a constant rate. During the injection process, the glue fills the cavity from bottom to top. The air in the cavity is efficiently discharged through the opened one-way exhaust valve under the combined action of the glue compression and the pumping effect provided by the vibration. When it is observed that there is continuous glue at the outlet of the exhaust valve, without large air bubbles, and seepage begins, the glue injection is stopped immediately.
[0033] Subsequently, S34 can perform static venting: After the first injection is completed, immediately pause the vibration platform, but keep the vent valve open, and let the heat sink box 20 semi-finished product stand for 30 to 60 seconds, preferably 60 seconds. This standing period takes advantage of the time window when the adhesive still has good fluidity, allowing larger air bubbles that have been discharged during vibration injection but are still dispersed in the adhesive, such as air bubbles larger than 0.5 mm, to have sufficient time to rise to the top of the adhesive under the action of gravity and escape through the vent valve, further reducing the risk of air bubble residue.
[0034] Then, S35 performs sealing: After the settling period, if there is no settling period, it is performed immediately after the first injection of adhesive. Quickly clean the outlet of the exhaust valve with a lint-free cloth and turn the one-way exhaust valve to be completely closed, i.e., sealed.
[0035] Afterwards, S36 performs a second injection: the vibration platform is restarted and kept running, and a second injection is performed through the injection hole 221a, slowly injecting a second preset amount, namely 50mL of thermally conductive potting compound. When the pressure gauge of the injection machine shows that the pressure inside the cavity reaches and stabilizes at 1.2 times the standard atmospheric pressure, the injection is stopped, but the injection system maintains this pressure and continues to vibrate for 30 seconds to maintain a stable positive pressure in the sealed cavity. Combined with continuous vibration, this produces two decisive effects. First, the pressure forces the adhesive to penetrate into the smallest dead corners such as the pin gaps of the drive unit 40, the bottom of the components, and the spring coil of the limiting component 23, ensuring complete filling. Second, according to Henry's Law, pressure can significantly increase the solubility of gas in the adhesive, causing the micron-sized air bubbles that may remain after the first injection and standing to dissolve in the uncured adhesive under pressure, thereby achieving physical-level complete degassing and obtaining a dense potting compound.
[0036] Finally, perform final sealing and cleaning: After the pressure holding vibration is completed, slowly release the pressure of the glue dispensing machine, quickly pull out the glue dispensing gun, and immediately use an Allen wrench to screw the brass sealing plug 223 with the sealing ring into the glue dispensing hole 221a, and apply a tightening torque of 3-5 N•m to ensure that the sealing plug 223 is sealed. Thoroughly clean the outer surface of the heat sink 20 with a lint-free cloth soaked in alcohol.
[0037] S40. Colloid Curing and Assembly: The potted heat sink box 20 and the assembled lampshade 10 are connected via a partition 12 and secured with bolts to obtain a semi-finished lamp. The semi-finished product is placed in a clean curing room with a temperature controlled at 25-30℃ and left to stand for 48 hours to allow the thermally conductive potting compound to fully cure at room temperature. To optimize performance and shorten the cycle, a stepped curing process can be adopted: first, pre-curing at 30℃ for 6 hours to allow the colloid to initially gel and release some of the reaction stress; then, heating to 70℃ and curing for 6 hours to promote complete reaction and obtain higher thermal conductivity, mechanical strength, and glass transition temperature. After curing, the thermally conductive potting compound solidifies the internal components such as the drive unit 40 and the limiting component 23 into one unit, and forms a molecular-level close contact with the inner walls of the box body 21 and the box cover 22, constructing an ultra-low thermal resistance path from the heat source to the heat sink housing, ultimately obtaining the finished high-temperature resistant energy-saving explosion-proof lighting lamp 100.
[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0039] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.
Claims
1. A high-temperature resistant, energy-saving, explosion-proof lighting lamp, characterized in that, Includes lampshade, heat sink, light source and driver unit, The lampshade includes a cover body and a partition, the cover body is used to install the light source, and the partition is connected to the end of the lampshade away from the light source; The heat sink box is connected to the partition and includes a box body, a box cover, and a limiting member. The box body has a receiving cavity for accommodating the drive unit. The box cover has an injection hole and an vent hole. The box cover and the box body are sealed together to form a closed potting cavity. The potting cavity communicates with the outside through the injection hole and the vent hole. The limiting member is disposed on the box cover and is used to provide the drive unit with an elastic force to press it into the box body. The potting cavity is filled with thermally conductive potting compound.
2. The high-temperature resistant, energy-saving, explosion-proof lighting lamp according to claim 1, characterized in that, The cover includes a lamp panel, a plurality of first heat sinks and a support ring. The lamp panel is provided with a lamp slot for mounting the light source. Each of the first heat sinks is connected to the lamp panel at intervals around the axis of the lamp panel. The support ring is connected to the end of each of the first heat sinks away from the lamp panel.
3. The high-temperature resistant, energy-saving, explosion-proof lighting lamp according to claim 2, characterized in that, The first heat sink includes a first connecting part connected to the lamp panel and a first transition part connected to the support ring. The first transition parts of two adjacent first heat sinks, the lamp panel and the support ring together form a ventilation groove.
4. The high-temperature resistant, energy-saving, explosion-proof lighting lamp according to claim 1, characterized in that, The box body includes a box body and a second heat sink arranged around the outer wall of the box body, and the box body is provided with the receiving cavity.
5. The high-temperature resistant, energy-saving, explosion-proof lighting lamp according to claim 1, characterized in that, The cover includes a cover body and a third heat sink arranged around the outer wall of the cover body. The cover body is provided with the glue injection hole, the vent hole and the mounting groove 221c for installing the limiting member. The glue injection hole and the vent hole are respectively equipped with removable sealing plugs.
6. A method for manufacturing a high-temperature resistant, energy-saving, explosion-proof lighting lamp, characterized in that, Includes the following steps: S10. Assemble the heat sink semi-finished product: Provide a box body, a drive unit and a box cover, place the drive unit in the receiving cavity of the box body, and seal the box cover to the box body to form a potting cavity with an injection hole and an vent hole to obtain the heat sink semi-finished product. S20. Sealing test: Gas is injected into the potting cavity through the injection hole to perform a pressure test; S30, Vibration injection: After the pressure holding test is qualified, the heat sink box semi-finished product is fixed on the vibration platform, the vent is opened, and the thermally conductive potting compound is injected into the potting cavity through the injection hole. The vibration platform is started during the injection process. S40. Colloid curing: After the colloid is applied, the heat sink box semi-finished product is left to stand to allow the thermally conductive potting compound to cure.
7. The manufacturing method of the high-temperature resistant energy-saving explosion-proof lighting lamp according to claim 6, characterized in that, Step S20 includes: Gas is injected into the potting cavity through the injection hole to bring the internal pressure to 1.1 to 1.3 times the standard atmospheric pressure, and this pressure is maintained for 5 seconds or more to verify the seal.
8. The manufacturing method of the high-temperature resistant energy-saving explosion-proof lighting lamp according to claim 6, characterized in that, In step S30, starting the vibration platform includes setting the vibration frequency of the vibration platform to a range of 200Hz to 500Hz and the vibration amplitude to a range of 0.05mm to 0.2mm.
9. The method for manufacturing a high-temperature resistant, energy-saving, explosion-proof lighting lamp according to claim 6, 7, or 8, characterized in that, Step S30 includes the following steps: With the vibration platform started and the vent hole open, the first injection of the thermally conductive potting compound is performed through the injection hole, injecting a first preset amount of the compound. Then, the vent is sealed; While maintaining the operation of the vibration platform, a second injection of adhesive is performed through the injection hole to replenish the second preset amount of the thermally conductive potting compound, and the pressure inside the potting cavity is maintained at 1.1 to 1.3 times the standard atmospheric pressure for 20 to 60 seconds.
10. The manufacturing method of the high-temperature resistant energy-saving explosion-proof lighting lamp according to claim 9, characterized in that, The first preset amount is 90% to 95% of the volume of the filling cavity, and the second preset amount is 5% to 10% of the volume of the filling cavity.