Method of processing a phototherapy device

By employing a two-stage injection molding process, the problems of poor sealing and appearance quality of the phototherapy device were solved, resulting in a more compact, reliable, and aesthetically pleasing phototherapy device.

CN119502230BActive Publication Date: 2026-04-10SHENZHEN KAIYAN MEDICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN KAIYAN MEDICAL EQUIP CO LTD
Filing Date
2024-09-23
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing phototherapy devices have poor sealing and appearance quality, posing safety hazards.

Method used

The process involves two injection molding steps: first, the control box is assembled; then, a substrate is formed and wrapped around the control box using a single injection molding process; finally, a second sinking injection molding process is used to form the light-transmitting component and fix and seal the light strip.

Benefits of technology

The improved sealing and waterproofing performance and appearance quality of the phototherapy device make the device more compact and reliable, reducing potential problems caused by seams.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of cosmetic physiotherapy equipment, and provides a processing method of a phototherapy device, which comprises the following steps: assembling a control box; placing the control box in a first injection mold, injection molding a base plate in the first injection mold, and constructing a base which is injection molded and wrapped outside the control box on one side of the base plate, and constructing a containing groove on the other side of the base plate; separating the base plate wrapped with the control box from the first injection mold; installing a lamp strip in the containing groove and electrically connecting the lamp strip with the control box; placing the base plate with the installed lamp strip in a second injection mold, controlling the upper die of the second injection mold to sink into the containing groove by a preset distance, and controlling an injection machine to injection mold a light-transmitting material into the containing groove through an injection hole of the upper die, so that a light-transmitting piece for fixing and sealing the lamp strip is formed, thereby obtaining the phototherapy device; and separating the phototherapy device from the second injection mold. The application can improve the sealing and waterproof performance of the phototherapy device, and can also improve the appearance quality of the product.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cosmetic therapy equipment, and particularly provides a processing method of a phototherapy device. BACKGROUND

[0002] The phototherapy device is a kind of cosmetic therapy equipment, which generally emits light of specific wavelength through internal light source to achieve the effect of phototherapy skin care.

[0003] At present, the processing method of the phototherapy device is generally to detachably assemble electronic components such as light source and circuit board in the shell of the phototherapy device, which has poor sealing and waterproof performance, safety hazards, and poor overall appearance quality. SUMMARY

[0004] The embodiment of the present application aims to provide a processing method of a phototherapy device, which aims to solve the problems of poor sealing and appearance quality of the existing phototherapy device.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] The present application provides a processing method of a phototherapy device, comprising the following steps:

[0007] Assembling a control box;

[0008] Placing the control box in a first injection mold, and injection molding a base plate in the first injection mold to form a pedestal wrapped around the control box on one side of the base plate, and a containing groove on the other side of the base plate;

[0009] Separating the base plate wrapped around the control box from the first injection mold;

[0010] Installing a lamp strip in the containing groove of the base plate, and electrically connecting the lamp strip with the control box;

[0011] Placing the base plate with the installed lamp strip in a second injection mold, controlling the upper mold of the second injection mold to sink into the containing groove by a preset distance, and controlling the injection machine to inject light-transmitting material into the containing groove through the injection hole of the upper mold to form a light-transmitting piece for fixedly and sealingly enclosing the lamp strip, thereby obtaining a phototherapy device;

[0012] Separating the phototherapy device from the second injection mold.

[0013] Optionally, the bottom of the upper mold is provided with a boss matched with the containing groove and a pressing edge surrounding the boss, and the boss is provided with the injection hole;

[0014] The step of placing the substrate with the installed light strip into a second injection mold, controlling the upper mold of the second injection mold to sink into the accommodating groove by a preset distance, and controlling the injection machine to inject the light-transmitting material into the accommodating groove through the injection channel of the upper mold, comprises:

[0015] The step of placing the substrate into the lower mold of the second injection mold, then controlling the upper mold to sink into the substrate by the preset distance, so that the boss enters the accommodating groove, and the crimping edge is pressed on the edge of the accommodating groove of the substrate, and controlling the injection machine to inject the light-transmitting material into the accommodating groove through the injection channel of the boss.

[0016] Optionally, when the injection machine is controlled to inject the light-transmitting material, the injection pressure of the injection machine is equal to the pressure applied by the crimping edge of the upper mold on the substrate.

[0017] Optionally, after the injection machine is controlled to complete the injection of the light-transmitting material, the injection of the light-transmitting material is stopped, and the injection machine is controlled to continue to maintain the injection pressure for a preset time.

[0018] Optionally, the number of injection channels is multiple, and multiple injection channels are arranged around the center ring of the boss.

[0019] Optionally, the control box comprises a bottom shell and a cover plate assembly, the bottom shell is provided with a first opening, the cover plate assembly covers the first opening, and a connecting groove is formed between the cover plate assembly and the end of the bottom shell adjacent to the first opening.

[0020] The step of placing the control box in a first injection mold and injection molding a substrate in the first injection mold to form a pedestal wrapped around the control box on one side of the substrate, comprises:

[0021] The control box is inverted in the first injection mold, and the material for injection molding the substrate flows into the connecting groove to form a flange embedded in the connecting groove and wrapped around the end of the bottom shell adjacent to the first opening.

[0022] Optionally, the outer side of the end of the bottom shell adjacent to the first opening has a chamfered portion.

[0023] Optionally, the control box further comprises a circuit board arranged in the bottom shell, the circuit board is electrically connected with a wire, and the bottom of the bottom shell is provided with a wire hole;

[0024] During the injection molding of the pedestal, the bottom of the pedestal is injection molded to form a wire bundling hole communicating with the wire hole and the accommodating groove;

[0025] The step of electrically connecting the lamp strip with the control box comprises: threading the wire through the wire hole and the bundle hole and electrically connecting the lamp strip.

[0026] Optionally, during the injection molding of the base, the cross-sectional area of the base gradually increases in the direction from the end of the base to the base plate.

[0027] Optionally, the preset distance is 0.02mm-0.5mm.

[0028] The processing method of the phototherapy device provided in the present application assembles the control box first, then forms the base plate through a one-time injection molding process and wraps the control injection molding, and then forms the light-transmitting piece through a secondary sinking injection molding process to fix and seal the lamp strip, so that the entire phototherapy device is more compact and reliable, reduces potential problems caused by joints of each component, not only can improve the sealing and waterproof performance of the phototherapy device, but also can improve the appearance quality of the product. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0030] Figure 1 The flowchart of the processing method of the phototherapy device provided in the embodiments of the present application is shown.

[0031] Figure 2 The flowchart of assembling the control box provided in the embodiments of the present application is shown.

[0032] Figure 3 The structural diagram of the phototherapy device provided in the embodiments of the present application is shown.

[0033] Figure 4 The structural explosion diagram of the phototherapy device provided in the embodiments of the present application is shown.

[0034] Figure 5 The structural cross-sectional view of the phototherapy device provided in the embodiments of the present application is shown.

[0035] Figure 6 The partial enlarged view of A of the phototherapy device provided in the embodiments of the present application is shown. Figure 5

[0036] Figure 7 The structural diagram of the base plate provided in the embodiments of the present application is shown.

[0037] Figure 8 The structural diagram of the base plate provided in the embodiments of the present application is shown. ​

[0038] Figure 9 A structural schematic diagram of a bottom shell provided for an embodiment of the present application is shown in the figure.

[0039] Figure 10 A structural schematic diagram of a pressing plate provided for an embodiment of the present application is shown in the figure.

[0040] In the figure, various reference signs are as follows:

[0041] 1, control box; 2, base plate; 3, lamp strip; 4, light-transmitting piece; 5, base; 6, accommodating groove;

[0042] 7, bottom shell; 8, circuit board; 9, electronic element; 10, cover plate assembly; 11, first opening;

[0043] 12, rechargeable battery; 13, charging interface; 14, backlight plate; 15, key; 16, mounting notch;

[0044] 17, lens; 18, pressing plate; 19, first step portion; 20, first connecting column;

[0045] 21, second connecting column; 22, frame cover; 23, connecting hole; 24, first through hole; 25, second through hole;

[0046] 26, avoiding hole; 27, pressing portion; 28, positioning portion; 29, adhesive piece; 30, first adhesive body;

[0047] 31, second adhesive body; 32, second step portion; 33, charging port; 34, charging wire;

[0048] 35, second opening; 36, flange; 37, wire passing hole; 38, wire bundling hole; 39, chamfered portion. DETAILED DESCRIPTION

[0049] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0050] In the description of the embodiments of the present application, it should be understood that the terms “upper”, “lower”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the embodiments of the present application.

[0051] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0052] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0053] According to one embodiment of this application, refer to Figure 1 , Figures 3-8 As shown, the phototherapy device of this application includes a control box 1, a substrate 2, a light strip 3 and a light-transmitting element 4. The processing method of the phototherapy device provided in this application includes the following steps S101 to S106.

[0054] S101, Assemble control box 1.

[0055] Control box 1 is the control component of the entire phototherapy device, responsible for power management, control operation, and other functions. It needs to be assembled first to ensure smooth connection with other components in subsequent steps.

[0056] S102. Place the control box 1 in the first injection mold and injection mold the substrate 2 in the first injection mold to form a base 5 that is injection molded and wrapped around the control box 1 on one side of the substrate 2 and to form a receiving groove 6 on the other side of the substrate 2.

[0057] The substrate 2 is manufactured using injection molding, a method that ensures seamless integration of components, reduces seams, and improves waterproofing. It not only serves as a base platform supporting other components but also features distinct functional areas on both sides: one side is a base 5 for connecting to the control box 1; the other side is a receiving groove 6 for mounting the light strip 3. Positioning the control box 1 and the light strip 3 on opposite sides of the substrate 2 ensures that the electronic components inside the control box 1 are kept away from the heat generated by the light strip 3, thereby improving the stability and lifespan of the device. Furthermore, the substrate 2 can be a silicone pad to enhance the user experience.

[0058] S103. The substrate 2 of the injection-molded control box 1 is removed from the first injection mold.

[0059] When the base plate 2 of the control box 1 is cooled and hardened, it is taken out of the first injection mold to facilitate subsequent operations.

[0060] S104, install the lamp strip 3 in the accommodating groove 6 of the base plate 2, and electrically connect the lamp strip 3 with the control box 1.

[0061] The lamp strip 3 is a key component for realizing phototherapy, which is installed in the accommodating groove 6 of the base plate 2. The lamp strip 3 can be composed of LED lights, which can emit light of a specific wavelength for purposes such as beauty and skin care. The lamp strip 3 needs to be electrically connected with the control box 1, which is a key step for realizing the function of phototherapy. Through the control box 1, the working state of the lamp strip 3 can be controlled, such as turning on, turning off, or adjusting the light intensity.

[0062] S105, place the base plate 2 with the installed lamp strip 3 in the second injection mold, control the upper mold of the second injection mold to sink into the accommodating groove 6 by a preset distance, and control the injection machine to inject a light-transmitting material into the accommodating groove 6 through the injection channel of the upper mold to form a light-transmitting piece 4 for fixing and sealing the lamp strip 3, thereby obtaining a phototherapy device.

[0063] The light-transmitting material for preparing the light-transmitting piece 4 can be transparent silicone, polymethyl methacrylate, polycarbonate, etc. For example, the light-transmitting piece 4 is made of transparent silicone, which is a material with good light transmission and good flexibility and temperature resistance. In order to prevent the transparent silicone from overflowing during injection, the upper mold of the second injection mold can be controlled to sink slightly by a preset distance of 0.02mm-0.5mm (for example, 0.1mm) during injection, so as to enter the accommodating groove 6 of the base plate 2, so that the outer surface of the formed light-transmitting piece 4 is 0.02mm-0.5mm lower than the distance from the groove of the accommodating groove 6. Alternatively, the distance can be 0.1mm, 0.2mm or 0.3mm, etc. This method can effectively control the flow range of the silicone, ensuring that it only fills in the predetermined space, avoiding the overflow of excess material outside the accommodating groove 6.

[0064] In this way, it can be ensured that the edge of the light-transmitting piece 4 after injection is basically flush with the surface of the base plate 2, which not only helps to enhance the overall aesthetics of the device, but also reduces the possibility of dust and other impurities accumulating at the edge of the device, thereby improving the user experience.

[0065] It can be understood that the sinking injection technology can better control the filling amount and shape of the silicone, so that there is no obvious joint or gap between the light-transmitting piece 4 and the groove wall of the accommodating groove 6 of the base plate 2, the product surface is smoother, thereby achieving better sealing effect, reducing the risk of external pollutants or moisture entering the device, and also helping to improve the appearance quality of the product.

[0066] The light-transmitting piece 4 is fixed and sealed to the lamp strip 3 through an injection molding process, so that light can be uniformly distributed and external moisture is prevented from entering, thereby not only protecting the lamp strip 3 but also improving the sealing performance of the entire device.

[0067] In addition, the control box 1 and the light-transmitting piece 4 are connected to the base plate 2 through the injection molding process, so that the alignment and fixing steps in the subsequent assembly process are omitted, the production process is simplified, and the assembly difficulty and cost are reduced. In addition, the control box 1 and the light-transmitting piece 4 are tightly combined after the injection molding process, and are not easy to fall off or be damaged, thereby increasing the durability of the device.

[0068] S106, detach the light therapy device from the second injection mold.

[0069] When the light-transmitting material is cooled and hardened, the finished product is taken out of the mold, and a complete light therapy device is obtained.

[0070] Therefore, the processing method of the light therapy device provided in the embodiments of the present application effectively solves the problems of poor sealing and waterproofing, safety hazards, and poor appearance quality of the traditional light therapy device through two injection molding processes. The light therapy device produced in this way is more compact, has higher reliability, and is also more beautiful.

[0071] According to an embodiment of the present application, the bottom of the upper mold of the second injection mold is provided with a boss matched with the accommodating groove 6 of the base plate 2 and a pressing edge surrounding the boss, and the boss is provided with an injection channel.

[0072] The steps of placing the base plate 2 with the installed lamp strip 3 in the second injection mold, controlling the upper mold of the second injection mold to sink into the accommodating groove 6 by a preset distance, and controlling the injection machine to inject the light-transmitting material into the accommodating groove 6 through the injection channel of the upper mold include:

[0073] The base plate 2 is placed on the lower mold of the second injection mold, and then the upper mold is controlled to sink by a preset distance, so that the boss enters the accommodating groove 6, the pressing edge is pressed on the edge of the accommodating groove 6 of the base plate 2, and the injection machine is controlled to inject the light-transmitting material into the accommodating groove 6 through the injection channel of the boss.

[0074] In this embodiment of the present application, a boss is designed at the bottom of the upper mold of the second injection mold, and the shape of the boss is matched with the accommodating groove 6 on the base plate 2. The boss is surrounded by a pressing edge, which plays a sealing role in the injection process. The boss is provided with an injection channel for injecting the light-transmitting material into the accommodating groove 6.

[0075] Specifically, first, the substrate 2 with the light strip 3 is placed on the lower mold of the second injection mold, at this time, the substrate 2 is in an open state. Then, the upper mold is controlled to sink by a preset distance until the boss is accurately in the accommodating groove 6 of the substrate 2, and the crimping edge is tightly pressed on the edge of the accommodating groove 6 of the substrate 2, forming a tight contact surface.

[0076] After the upper mold is sunk in place, the injection machine injects the light-transmitting material into the accommodating groove 6 through the injection channel on the boss. Due to the existence of the crimping edge, it can exert a certain pressure on the edge of the substrate 2 during the injection process, which helps to maintain the flatness of the edge of the accommodating groove 6 and prevent the light-transmitting material from overflowing out of the accommodating groove 6 under high pressure.

[0077] In this way, not only is it ensured that the light strip 3 is effectively encapsulated in the light-transmitting material, but also the overflow of excess material is avoided, which is crucial for improving the sealing and waterproof performance of the product.

[0078] And, since there is no excess material overflowing, it means that the appearance of the product is more neat, without excess burrs or irregular shapes, which directly improves the appearance quality of the product.

[0079] Therefore, through this precisely controlled injection method, the embodiments of the present application can significantly reduce the product unqualified rate caused by material overflow, and reduce the cost and time of subsequent processing.

[0080] According to an embodiment of the present application, when the injection machine injects the light-transmitting material, the injection pressure of the injection machine is equal to the pressure exerted by the crimping edge of the upper mold on the substrate 2.

[0081] Specifically, when the pressure of the injection machine is equal to the pressure of the crimping edge, it can be ensured that the light-transmitting material is uniformly filled in the accommodating groove 6 during the injection process, and problems such as uneven material flow or air bubbles caused by pressure difference can be avoided.

[0082] It can be understood that the role of the crimping edge is to prevent the light-transmitting material from overflowing out of the accommodating groove 6. If the injection pressure is too large and the pressure of the crimping edge is insufficient, it may cause material extrusion; on the contrary, if the pressure of the crimping edge is too large and the injection pressure is insufficient, it may cause incomplete filling of the material. Therefore, the equalization of the two pressures can achieve the best filling effect and prevent material overflow.

[0083] And, if the injection pressure is greater than the pressure of the crimping edge, it may cause the substrate 2 to be locally stressed too much, thereby causing deformation or cracking. By equalizing the two pressures, stress concentration phenomena caused by uneven pressure can be reduced, and the stability of the finished product can be improved.

[0084] A consistent pressure distribution helps to form a uniformly dense light-transmitting piece 4, which not only improves the appearance quality of the product, but also helps the functional performance of the light therapy device, such as uniform diffusion of light.

[0085] According to an embodiment of the present application, after the injection molding machine completes the injection molding of the light-transmitting material, the injection molding of the light-transmitting material is stopped, and the injection molding machine is controlled to continue to maintain the injection molding pressure for a preset time length.

[0086] Specifically, when the light-transmitting material is completely injected into the accommodation groove 6, the injection of new material is stopped. However, the injection molding machine does not immediately release the pressure, but maintains a certain pressure, which can be referred to as a pressure maintaining phase. The length of time of the pressure maintaining can be determined according to the characteristics, temperature, mold design and other factors of the material. For example, this time is sufficient for the material to begin to solidify, but still allows the material to have a certain fluidity to better fill the space. When the preset time arrives, the injection molding machine gradually releases the pressure, allowing the material to continue to cool and solidify naturally.

[0087] The embodiment of the present application can ensure that all voids are filled with material before the material begins to solidify by maintaining a certain injection molding pressure. Even after the injection is completed, the material can continue to flow to fill possible small voids.

[0088] It can be understood that the light-transmitting material can shrink during the cooling process, and if the pressure is released immediately after the injection is completed, it can cause uneven shrinkage, thereby affecting the quality and appearance of the product. By maintaining the pressure, the adverse effects of shrinkage can be reduced, and the material molecules can be more closely combined together, thereby improving the density of the material and enhancing the mechanical strength and optical performance of the light-transmitting piece 4.

[0089] In addition, during the injection molding process, air can be mixed into the material to form bubbles. Maintaining a certain pressure helps to squeeze out these air, reducing or even eliminating bubbles and cavities, thereby improving the transparency and flatness of the product. During the pressure maintaining period, the material will be more closely attached to the lamp strip 3, further enhancing the sealing performance of the light therapy device.

[0090] Therefore, the embodiment of the present application can ensure that the light-transmitting material reaches the best state before solidification by the above-mentioned pressure maintaining measures, thereby improving the sealing performance and aesthetic appearance of the light therapy device.

[0091] According to an embodiment of the present application, the number of injection molding channels is a plurality, and the plurality of injection molding channels are arranged around the center ring of the boss. For example, the number of injection molding channels can be four, and the four injection molding channels are uniformly distributed at the four corners of the boss.

[0092] Specifically, the design of multiple injection channels can reduce the possibility of bubbles, voids or insufficient filling caused by single-point injection, thereby improving the appearance quality and consistency of the finished product.

[0093] In addition, the light-transmitting material is uniformly filled from multiple directions, which can better fill each corner and gap, reduce the gap between the material and the accommodation groove 6 of the substrate 2, and improve the overall sealing performance.

[0094] In addition, multi-point simultaneous injection can optimize the flow path of the material in the accommodation groove 6, so that the material can cover the entire accommodation groove 6 area faster, reduce flow dead angles, and help form a more uniform and dense light-transmitting piece 4.

[0095] Therefore, by adopting the multi-channel injection design, the efficiency of injection molding can be significantly improved, and the uniform distribution of the light-transmitting material in the accommodation groove 6 can be ensured, thereby improving the sealing performance and appearance quality of the phototherapy device.

[0096] According to an embodiment of the present application, referring to Figures 2-4 As shown in the figure, the control box 1 includes a bottom shell 7, a circuit board 8, electronic components 9 and a cover plate assembly 10. The top of the bottom shell 7 is provided with a first opening 11. The steps of assembling the control box 1 include:

[0097] S201, assembling the electronic components 9 on the circuit board 8.

[0098] This step involves welding or otherwise fixing various electronic functional components (such as rechargeable batteries 12, charging interfaces 13, backlights 14, buttons 15, etc.) on the circuit board 8. By completing the assembly of all electronic components in one step, production efficiency can be improved.

[0099] S202, installing the circuit board 8 with the assembled electronic components 9 into the bottom shell 7 through the first opening 11.

[0100] The first opening 11 is provided at the top of the bottom shell 7, allowing the circuit board 8 with the electronic components 9 to be placed into the bottom shell 7 through this opening. The purpose of this is to facilitate subsequent assembly steps, and to allow pre-checking of whether the components on the circuit board 8 are correctly installed, thereby simplifying the subsequent assembly process and avoiding the need to operate multiple independent components in the small space of the bottom shell 7.

[0101] S203, covering the cover plate assembly 10 on the first opening 11 of the bottom shell 7 to close the circuit board 8.

[0102] The last step is to close the first opening 11 on the bottom shell 7 with the cover assembly 10 to protect the internal circuit board 8 and electronic components 9, which can be achieved by screwing or other mechanical fixing. By closing the cover assembly 10, the internal components can be effectively protected from the external environment.

[0103] Therefore, the embodiment of the present application can significantly reduce the assembly workload in the bottom shell 7 by pre-assembling all electronic components 9 on the circuit board 8, thereby improving the overall production efficiency; and since the bottom shell 7 is closed after the circuit board 8 is assembled, the sealing effect can be better controlled, and the risk of water vapor or dust entering can be reduced. The present application optimizes the assembly process of the control box 1 to achieve the purpose of improving the processing efficiency and enhancing the sealing performance.

[0104] According to an embodiment of the present application, referring to Figure 3 , Figure 4 and Figure 9 , the electronic components 9 include a charging battery 12 and a charging interface 13, and the bottom shell 7 is provided with a mounting gap 16.

[0105] The step of assembling the electronic components 9 on the circuit board 8 includes electrically connecting the charging battery 12 to the circuit board 8 and electrically connecting the charging interface 13 to the circuit board 8.

[0106] Specifically, the charging battery 12 is one of the important components of the light therapy device, which can power the entire device. The charging interface 13 is the interface for the user to charge the device, and is also the connection point of the circuit board 8 and the external power supply. Directly welding the charging interface 13 to the circuit board 8 can ensure good electrical contact and facilitate user operation.

[0107] The step of installing the circuit board 8 assembled with the electronic components 9 in the bottom shell 7 through the first opening 11 includes: installing the charging battery 12 in the bottom shell 7 through the first opening 11, and then covering the circuit board 8 on the charging battery 12 through the first opening 11, and installing the charging interface 13 on the circuit board 8 in the mounting gap 16 of the bottom shell 7.

[0108] Specifically, the charging battery 12 is first placed in the bottom shell 7 through the first opening 11 on the top of the bottom shell 7. The purpose of this is to ensure that the battery can be safely placed in the predetermined position and will not be affected by the external environment, ensuring the accurate positioning of the battery and avoiding accidental damage to the battery in subsequent operations.

[0109] Next, the circuit board 8, with the charging interface 13 and rechargeable battery 12 already assembled, is placed into the bottom shell 7 through the first opening 11, and then placed over the rechargeable battery 12. This ensures a tight physical connection between the circuit board 8 and the battery, facilitates subsequent operations, and helps improve overall mechanical stability.

[0110] The final step is to align the charging port 13 on the circuit board 8 with the mounting notch 16 on the bottom shell 7 and ensure it is properly installed. This ensures the charging port 13 is accurately positioned, facilitating charging operations and improving the user experience.

[0111] Therefore, this embodiment of the application simplifies the assembly process and reduces the workload of handling each component individually by directly mounting the rechargeable battery 12 and charging interface 13 onto the circuit board 8 and then installing them as a whole into the casing 7. Furthermore, by covering the rechargeable battery 12 with the circuit board 8, the safety and stability of the rechargeable battery 12 can be improved.

[0112] According to one embodiment of this application, refer to Figure 3 and Figure 4 As shown, electronic component 9 also includes a backlight panel 14, and cover assembly 10 includes a lens 17 with a patterned structure.

[0113] The step of assembling electronic component 9 onto circuit board 8 further includes: electrically connecting backlight panel 14 to the side of circuit board 8 facing away from rechargeable battery 12.

[0114] Specifically, the main function of the backlight panel 14 is to provide illumination when needed to highlight the patterned structure on the lens 17. Mounting the backlight panel 14 on the side of the circuit board 8 away from the rechargeable battery 12 ensures that it does not interfere with the battery installation and can effectively illuminate the lens 17 during operation.

[0115] The step of covering the cover plate assembly 10 onto the first opening 11 of the bottom shell 7 to close the circuit board 8 includes: covering the lens 17 onto the first opening 11 of the bottom shell 7 and corresponding to the backlight plate 14, so that the lens 17 displays the pattern structure through the backlight plate 14.

[0116] Specifically, the lens 17, as part of the cover assembly 10, features a patterned structure, which may include brand logos, operation prompts, or other decorative elements. By fitting the lens 17 over the first opening 11 of the bottom housing 7 and ensuring its alignment with the backlight panel 14, the patterned structure becomes clearly visible when the backlight panel 14 is illuminated. This design not only enhances the device's visual appeal but also helps users quickly identify functional areas or operation buttons in low-light conditions.

[0117] According to an embodiment of the present application, referring to Figure 4 The electronic component 9 further comprises a key 15, and the cover assembly 10 further comprises a pressing plate 18 arranged side by side with the backlight plate 14.

[0118] The step of assembling the electronic component 9 on the circuit board 8 further comprises electrically connecting the key 15 to the side of the circuit board 8 away from the charging battery 12.

[0119] Specifically, the key 15 is an important interface part for user interaction with the device, which can be used to start, turn off the device, etc. Mounting the key 15 on the side of the circuit board 8 away from the charging battery 12 can ensure that the position of the key 15 does not interfere with the installation of the charging battery 12, and can facilitate user pressing, ensuring the compactness of the layout of the circuit board 8. This layout ensures the response speed and stability of the key 15, and is also conducive to simplifying the design of the circuit board 8 and improving the overall assembly efficiency.

[0120] The step of covering the cover assembly 10 at the first opening 11 of the bottom shell 7 to enclose the circuit board 8 further comprises covering the pressing plate 18 at the first opening 11 of the bottom shell 7 and corresponding to the key 15, so as to press the key 15 through the pressing plate 18.

[0121] Specifically, the pressing plate 18 is part of the cover assembly 10, and its main function is to provide an interface that can be pressed by the user. The pressing plate 18 corresponds to the position of the key 15 to ensure that the key 15 can be triggered accurately when the user presses the pressing plate 18. Through the design of the pressing plate 18, the internal key 15 can be protected from external factors (such as dust, moisture, etc.), and the service life and operation reliability of the key 15 can be improved.

[0122] According to an embodiment of the present application, referring to Figures 4-6 , Figure 9 The first opening 11 of the bottom shell 7 is provided with a first step portion 19, the inner side wall of the first step portion 19 is provided with a first connecting column 20 and a second connecting column 21, and the cover assembly 10 further comprises a frame cover 22.

[0123] The step of mounting the circuit board 8 assembled with the electronic component 9 in the bottom shell 7 through the first opening 11 further comprises connecting the circuit board 8 with the first connecting column 20 through a first fastener (not shown in the figure).

[0124] Specifically, the first connecting column 20 is located on the inner side wall of the first step portion 19 at the first opening 11 of the bottom shell 7. By connecting the circuit board 8 with the first connecting column 20 through the first fastener (such as a screw, a buckle, etc.), the fixation and stability of the circuit board 8 in the bottom shell 7 can be ensured, and displacement or vibration during use can be avoided, thereby improving the reliability and service life of the device.

[0125] The step of covering the cover plate assembly 10 onto the first opening 11 of the bottom shell 7 to close the circuit board 8 further includes: covering the frame cover 22 onto the circuit board 8 and connecting it to the second connecting post 21 via a second fastener (not shown in the figure) so that the frame cover 22 overlaps the first step portion 19, and then covering the lens 17 and the pressing plate 18 onto the frame cover 22.

[0126] Specifically, the frame cover 22 is part of the cover plate assembly 10. The frame cover 22 has a connection hole 23 that corresponds to the second connecting post 21. The connection hole 23 is connected to the second connecting post 21 by a second fastener (such as a screw, a clip, etc.). This allows the frame cover 22 to fit tightly against the circuit board 8 and overlap with the first step portion 19. The design of the frame cover 22 not only protects the circuit board 8 and other electronic components, but also enhances the overall sealing and structural stability through its overlap with the first step portion 19.

[0127] After the frame cover 22 is closed and secured, the next step is to attach the lens 17 and the pressing plate 18 to the frame cover 22. The positions of the lens 17 and the pressing plate 18 correspond to the aforementioned backlight plate 14 and button 15, ensuring that the user can trigger the button 15 through the pressing plate 18 and illuminate the pattern structure on the lens 17 through the backlight plate 14.

[0128] The multi-layered design of this embodiment not only improves the aesthetics of the device but also enhances its overall protective performance, enabling the device to function normally in various environments.

[0129] According to one embodiment of this application, refer to Figure 4 and Figure 10 As shown, the frame cover 22 has a first through hole 24, a second through hole 25, and a clearance hole 26, and the bottom of the pressing plate 18 has a pressing part 27 and a positioning part 28. These holes are designed to ensure that the various components can be properly aligned and function.

[0130] The step of covering the frame cover 22 onto the circuit board 8 includes: covering the frame cover 22 onto the circuit board 8, and placing the backlight panel 14 on the circuit board 8 into the clearance hole 26, and the button 15 on the circuit board 8 corresponding to the first through hole 24.

[0131] Specifically, the clearance hole 26 is designed to allow the backlight panel 14 on the circuit board 8 to be exposed, ensuring that light can pass smoothly through the lens 17 to display the pattern structure. The existence of the clearance hole 26 ensures that the light from the backlight panel 14 is not blocked by the frame cover 22, thereby allowing the backlight panel 14 to emit light normally and illuminate the pattern structure on the lens 17.

[0132] The position of the first through hole 24 corresponds to the button 15 on the circuit board 8, which is to ensure that the pressing part 27 of the pressing plate 18 can accurately align and press on the button 15, so as to realize the function of the button 15.

[0133] The step of covering the pressing plate 18 on the frame cover 22 includes: corresponding the pressing part 27 of the pressing plate 18 to the first through hole 24, and connecting the positioning part 28 of the pressing plate 18 in the second through hole 25.

[0134] Specifically, the pressing plate 18 as a whole can adopt TPU (Thermoplastic Polyurethane Elastomer) material, which has good elasticity and wear resistance, and is suitable for components that need to be pressed frequently. When the user applies pressure to the pressing plate 18, the pressing part 27 will pass through the first through hole 24 and press on the button 15 on the circuit board 8, triggering the corresponding function.

[0135] The positioning part 28 is designed to ensure that the pressing plate 18 can be quickly and accurately installed on the frame cover 22. By connecting the positioning part 28 in the second through hole 25, quick positioning assembly can be achieved, ensuring the accurate position of the pressing plate 18 and improving the assembly efficiency.

[0136] According to one embodiment of the present application, referring to Figure 4 The step of covering the lens 17 and the pressing plate 18 on the frame cover 22 includes: bonding the lens 17 and the pressing plate 18 on the frame cover 22 by the bonding member 29.

[0137] Specifically, the lens 17 is located on the outermost layer of the frame cover 22, and has a pattern structure, which is the part directly seen by the user. The lens 17 is bonded to the frame cover 22 by using a bonding member (such as glue, double-sided tape or other suitable bonding material), which can ensure that the lens 17 is firmly fixed in the specified position. The application of the bonding member 29 can ensure the close combination between the lens 17 and the frame cover 22, avoiding the lens 17 from falling off or moving during use, and improving the sealing and aesthetics of the device.

[0138] Similarly, the pressing plate 18 is bonded to the frame cover 22 by using the bonding member 29, which ensures the stability and position accuracy of the pressing plate 18. The application of the bonding member 29 can ensure that the pressing plate 18 does not displace when pressed by external force, thereby ensuring the accuracy of user operation and the reliability of the device.

[0139] For example, the bonding member 29 includes a first bonding body 30 and a second bonding body 31, the first bonding body 30 is annular and matched with the frame cover 22, the lens 17 is bonded to the frame cover 22 through the first bonding body 30, and the second bonding body 31 is connected to the end of the first bonding body 30, and the pressing plate 18 is bonded to the frame cover 22 through the second bonding body 31.

[0140] According to an embodiment of the present application, referring to Figure 6 and Figure 9 , the control box 1 comprises a bottom shell 7 and a cover plate assembly 10, the bottom shell 7 is provided with a first opening 11, the cover plate assembly 10 covers the first opening 11, and a connecting groove is formed between the cover plate assembly 10 and the end of the bottom shell 7 adjacent to the first opening 11.

[0141] The control box 1 is placed in the first injection mold, and the base 5 is formed by injection molding the substrate 2 in the first injection mold to wrap the base 5 outside the control box 1 on one side of the substrate 2, which comprises:

[0142] The control box 1 is inverted in the first injection mold, and the material for injection molding the substrate 2 flows into the connecting groove to form a flange 36 on the end of the base 5, which is embedded in the connecting groove and covers the end of the bottom shell 7 adjacent to the first opening 11.

[0143] Specifically, the control box 1 is inverted in the first injection mold to ensure that the base 5 can be accurately formed and connected with the control box 1 during injection molding. In this way, the connection strength and sealing between the base 5 and the control box 1 can be ensured.

[0144] During injection molding, the base 5 is injection molded to match the design of the bottom shell 7, which ensures that the base 5 can be closely combined with the bottom shell 7 to form a solid overall structure. And the base 5 is injection molded to form a charging port 33 corresponding to the charging interface 13, which ensures that the position of the charging port 33 is accurate and convenient for the user to connect the charging line 34 of the charger with the charging interface 13 through the charging port 33 to realize charging operation.

[0145] The first opening 11 of the bottom shell 7 is also provided with a second step portion 32, which is located outside the first step portion 19. The base 5 is injection molded to form a second opening 35 at one end adjacent to the first opening 11. The end of the base 5 adjacent to the second opening 35 is formed with a flange 36, which is embedded in the connecting groove and covers the end of the bottom shell 7 adjacent to the first opening 11, and is connected to the second step portion 32.

[0146] The design of the flange 36 can enhance the connection strength between the base 5 and the bottom shell 7 to prevent them from being separated. And since a flange 36 sealing structure is formed in the connecting groove, it can effectively prevent moisture or other external substances from entering the inside of the device.

[0147] Therefore, the embodiment of the present application forms the design of the base 5 by inverting the control box 1 in the first injection mold for injection molding the substrate 2, which not only improves the sealing and waterproof performance of the device, but also enhances the structural strength and simplifies the assembly process.

[0148] According to an embodiment of the present application, referring to Figure 6As shown, the bottom shell of the control box 1 has a chamfered portion 39 on the outer side of the end adjacent to the first opening. This design increases the connection area of ​​the base 5 at the chamfered portion 39, thereby improving the tightness of the connection.

[0149] According to one embodiment of this application, refer to Figure 4 , Figures 7-9 As shown, the control box 1 also includes a circuit board 8 disposed inside the bottom shell 7. The circuit board 8 is electrically connected to wires (not shown in the figure), and the bottom of the bottom shell 7 is provided with a wire hole 37.

[0150] During the injection molding process of the base 5, the bottom of the base 5 is injection molded to form a wire harness hole 38 that communicates with the wire passage hole 37 and the receiving groove 6.

[0151] The steps of electrically connecting the light strip 3 to the control box 1 include: passing the wire through the wire hole 37 and the wire bundle hole 38 and electrically connecting it to the light strip 3.

[0152] Specifically, the bottom of the base 7 is provided with a wire passage hole 37, and during the injection molding process, the bottom of the base 5 is injection molded to form a wire harness hole 38 that communicates with the wire passage hole 37 and the receiving groove 6. Through the design of the wire passage hole 37 and the wire harness hole 38, the wire can start from the circuit board 8, pass through the wire passage hole 37 to the wire harness hole 38 at the bottom of the base 5, and finally be electrically connected to the light strip 3 in the receiving groove 6.

[0153] This application embodiment, through the reasonable design of the wire passage hole 37 and the wire bundle hole 38, arranges the wires in an orderly manner inside the equipment, avoiding the situation of the wires being messy inside the equipment, which helps to reduce the overall size of the equipment, improve the space utilization of the equipment, and enhance the reliability of the equipment.

[0154] According to one embodiment of this application, refer to Figure 5 As shown, during the injection molding process of the base 5, the cross-sectional area of ​​the base 5 gradually increases along the direction from the end of the base 5 to the substrate 2, that is, from left to right. On the one hand, the thickening design helps to improve the connection strength and stability, and on the other hand, it facilitates demolding during injection molding.

[0155] According to one embodiment of this application, the bottom shell 7 of the control box 1 is made of a rigid material.

[0156] Specifically, the bottom shell 7 of the control box 1 is a rigid shell. The rigid shell has high strength and rigidity, which can effectively protect the internal components such as the circuit board 8 and the rechargeable battery 12 from damage when the equipment is subjected to external impact or pressure, thereby extending the service life of the equipment and reducing maintenance costs.

[0157] The processing method of the phototherapy device provided in this application is further described below with reference to a specific embodiment, which generally includes the following steps:

[0158] 1. Assemble the control box 1.

[0159] Specifically, the elements such as the rechargeable battery 12, the charging interface 13, the backlight plate 14, the button 15, the wire, etc. are assembled on the circuit board 8, then the rechargeable battery 12 is installed in the bottom shell 7, the circuit board 8 is covered on the rechargeable battery 12, the wire is passed through the wire hole 37 of the bottom shell, the charging interface 13 on the circuit board 8 is located in the installation gap 16 of the bottom shell 7, the preliminary positioning of the circuit board 8 is realized, then the circuit board 8 is connected with the first connecting column 20 in the bottom shell 7 through the screw, the fixation of the circuit board 8 is realized.

[0160] The frame cover 22 is covered on the circuit board 8 and connected with the second connecting column 21 through the screw, so that the frame cover 22 is stably overlapped on the first step part 19 of the bottom shell 7, then the lens 17 and the pressing plate 18 are adhered and covered on the frame cover 22 through the double-sided adhesive. The positions of the lens 17 and the pressing plate 18 correspond to the backlight plate 14 and the button 15 on the circuit board 8, so as to ensure that the user can trigger the button 15 through the pressing plate 18 and illuminate the pattern structure on the lens 17 through the backlight plate 14.

[0161] 2. One-time injection molding of the base plate 2.

[0162] Specifically, the control box 1 is inverted in the first injection mold, the silicone material of the base plate 2 is injection molded in the first injection mold, so as to form the base 5 matched with the bottom shell 7 and the accommodating groove 6 used for installing the light strip 3, and in the injection molding process, the wire hole 38 communicated with the wire hole 37 and the accommodating groove 6 is injection molded at the bottom of the base 5, the charging port 33 corresponding to the charging interface 13 is injection molded at the side of the base 5, the second opening 35 is injection molded at one end of the base 5 adjacent to the first opening 11, the flow of the silicone material of the base plate 2 is controlled to flow into the connecting groove at the end of the control box 1, so as to form the flange 36 embedded in the connecting groove and covering the end of the bottom shell 7 adjacent to the first opening 11 at the end of the base 5, and the flange 36 is connected to the second step part 32.

[0163] 3. One-time demolding.

[0164] The base plate 2 wrapped the control box 1 is taken out from the first injection mold.

[0165] 4. Installing the light strip 3.

[0166] Specifically, the wire is passed through the wire hole 38 at the bottom of the base 5 and connected with the light strip 3, then the light strip 3 is installed in the accommodating groove 6 of the base plate 2.

[0167] 5. Secondary injection of transparent silicone.

[0168] Specifically, the substrate 2 is placed on the lower mold of the second injection mold, then the upper mold is controlled to sink 0.1 mm, so that the boss enters the accommodating groove 6 of the substrate 2, and the crimping edge is crimped on the edge of the accommodating groove 6 of the substrate 2, and the injection machine is controlled to inject transparent silica gel into the accommodating groove 6 through the injection channel of the boss, so that the injection pressure of the injection machine is equal to the pressure applied to the substrate 2 by the crimping edge of the upper mold, the transparent silica gel is integrally connected with the bottom and the side wall of the accommodating groove 6, and the lamp strip 3 is fixed and sealed, finally forming the light-transmitting piece 4, thereby obtaining the phototherapy device.

[0169] 6, Secondary demolding.

[0170] The phototherapy device is taken out of the second injection mold.

[0171] The above is only a preferred embodiment of the present application and is not used to limit the embodiments of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A method of processing a phototherapy device, characterized by, Includes the following steps: Assemble the control box; The control box is placed in a first injection mold, and a substrate is injection molded in the first injection mold to form a base that is injection molded and encloses the control box on one side of the substrate, and a receiving groove is formed on the other side of the substrate. The substrate that encapsulates the control box is detached from the first injection mold; The light strip is installed in the receiving groove of the substrate, and the light strip is electrically connected to the control box; The substrate with the LED strip installed is placed on the lower mold of the second injection mold; The upper mold of the second injection mold is controlled to sink down a preset distance into the receiving groove. The bottom of the upper mold is provided with a boss that matches the receiving groove and a pressing edge surrounding the boss. The boss is provided with an injection channel, so that during the sinking of the upper mold, the boss enters the receiving groove and the pressing edge presses against the edge of the receiving groove. The injection molding machine is controlled to inject light-transmitting material into the receiving groove through the injection channel to form a light-transmitting component that fixes and seals the light strip, thereby producing a phototherapy device; Remove the phototherapy device from the second injection mold.

2. The method of processing a phototherapy device according to claim 1, wherein, When the injection molding machine is controlled to inject the light-transmitting material, the injection pressure of the injection molding machine is equal to the pressure applied to the substrate by the pressing edge of the upper mold.

3. The method of processing a phototherapy device according to claim 1, wherein, After the injection molding machine completes the injection of the light-transmitting material, the injection of the light-transmitting material is stopped, and the injection molding machine is controlled to continue to maintain the injection pressure for a preset time.

4. The method of processing a phototherapy device according to claim 1, wherein, The number of injection channels is multiple, and the multiple injection channels are arranged in a ring around the center of the boss.

5. The method of processing a phototherapy device according to any one of claims 1 to 4, wherein, The control box includes a bottom shell and a cover plate assembly. The bottom shell has a first opening, the cover plate assembly covers the first opening, and there is a connecting groove between the cover plate assembly and the end of the bottom shell adjacent to the first opening. The step of placing the control box in a first injection mold and injection molding a substrate in the first injection mold to construct a base that is injection molded and encloses the control box on one side of the substrate includes: The control box is placed upside down in the first injection mold, and the material for injection molding the substrate is controlled to flow into the connecting groove, so as to form a flange at the end of the base that is embedded in the connecting groove and covers the end of the bottom shell adjacent to the first opening.

6. The method of processing a phototherapy device according to claim 5, wherein, The outer side of the bottom shell near the end of the first opening has a chamfered portion.

7. The method of processing a phototherapy device according to claim 5, wherein, The control box also includes a circuit board disposed inside the bottom shell, the circuit board being electrically connected to wires, and the bottom of the bottom shell being provided with wire holes; During the injection molding process of the base, the bottom of the base is injection molded to form a wire harness hole that communicates with the wire passage hole and the receiving groove; The step of electrically connecting the light strip to the control box includes: passing the wire through the wire hole and the wire bundle hole and electrically connecting it to the light strip.

8. The method of processing a phototherapy device according to claim 5, wherein, During the injection molding process of the base, the cross-sectional area of ​​the base gradually increases along the direction from the end of the base to the substrate.

9. The method of processing a phototherapy device according to any one of claims 1 to 4, wherein, The preset distance is 0.02mm-0.5mm.

Citation Information

Patent Citations

  • Moulding method

    CN104245269A