Integrated sealed heating assembly and sealed demisting lens system
The integrated sealed heating component solves the problem of lens fogging in low-temperature environments of PDA equipment, reducing lens black edges, thickness, and improving production efficiency, thus meeting the demand for high aesthetic appeal.
Patent Information
- Application Number
- CN202423112857.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The existing methods for dealing with lens fogging in low-temperature environments in PDA devices result in wide black borders, limited thickness, complex assembly, and high costs, affecting product appearance and production efficiency.
An integrated sealing and heating assembly is adopted, including a heating flexible printed circuit board and two sealing layers. The two sealing layers are fixed to the two sides of the heating flexible printed circuit board respectively. The sealing and heating functions are achieved by one-time bonding, reducing the black edge width and assembly steps.
Simplify the production process, reduce production costs, improve product consistency and aesthetics, and enhance equipment portability.
Smart Images
Figure CN223679509U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to optical element protection field especially relates to a kind of integrated sealing heating assembly suitable for PDA equipment and sealed defogging lens system. BACKGROUND
[0002] PDA (Personal Digital Assistant) is also called palm computer, with simple operation, mobile convenient and other characteristics.PDA is classified according to use and can be divided into industrial PDA and consumer PDA.Industrial PDA is mainly applied in industrial field, and common ones are barcode scanner, RFID reader, POS machine and the like.
[0003] A kind of PDA equipment applied to cold chain environment in the prior art, in order to prevent its code scanning head lens from fogging in cold store environment, usually two kinds of materials are used to solve the problem:
[0004] I, sealing foam rubber tape: it is a kind of tape like sponge, paste on the periphery of lens, to seal and protect lens;
[0005] II, heating flexible printed circuit board (Flexible Printed Circuit, FPC): it is a kind of thin sheet that can generate heat, paste on the inner ring of lens, remove the fog on the lens by heating.
[0006] Although the prior art can effectively prevent lens from fogging, it also has some obvious shortcomings:
[0007] I, larger black edge: because sealing foam rubber tape and heating FPC need to be pasted on lens twice, in order to make the fit degree meet the requirements and facilitate the pasting of heating FPC, sealing foam rubber tape needs to reserve a certain width to form assembly avoidance space, and after pasting, two layers of materials occupy a lot of space, resulting in a relatively wide black edge around the lens, in a kind of PDA equipment in the prior art, the black edge width is usually 3mm, which looks not beautiful and affects product appearance;
[0008] II, thickness is limited: because the black edge is wide, the overall thickness of PDA equipment is also limited, and it cannot be made thinner and more portable;
[0009] III, assembly is complex: because two kinds of materials need to be pasted on lens twice, alignment is difficult, and needs to be adjusted and pasted multiple times, assembly steps are complicated, and even needs to be torn down and pasted again, rework rate is high, not only time-consuming, but also prone to assembly error, affecting product consistency and quality, increasing steps and time in production process, resulting in low assembly efficiency;
[0010] Fourth, high cost: in the tear and re-stick, easy to cause heating FPC damage, resulting in material waste, thus increasing the material cost, and cumbersome assembly steps, resulting in labor cost and time cost increase, the overall production cost is high, not conducive to mass production and market promotion.
[0011] Therefore, it is necessary to provide an improved integrated sealing and heating assembly and a sealed defogging lens system to solve the defogging and protection problems of optical lenses in low temperature environments, reduce the black edge size and thickness of the scanning code head lens, simplify the production process, improve production efficiency, and reduce production cost. Inventive content
[0012] The purpose of the present application is to provide an integrated sealing and heating assembly to solve the defogging and protection problems of optical lenses in low temperature environments, reduce the black edge size and thickness of the scanning code head lens, simplify the production process, improve production efficiency, and reduce production cost.
[0013] The purpose of the present application is to provide an integrated sealing and heating assembly to solve the defogging and protection problems of optical lenses in low temperature environments, reduce the black edge size and thickness of the scanning code head lens, simplify the production process, improve production efficiency, and reduce production cost.
[0014] To achieve the above purpose, the technical scheme of the present application is to provide an integrated sealing and heating assembly, which comprises a heating flexible printed circuit board and two sealing layers, the two sealing layers are fixed on the two sides of the heating flexible printed circuit board, and the two sealing layers are arranged in correspondence with each other.
[0015] Preferably, the outer edges of the two sealing layers and the heating flexible printed circuit board are flush, so that when the integrated sealing and heating assembly is pasted on the lens, it can be easily aligned with the edge of the lens, reducing the adjustment time and reducing the error rate in the production process, improving the consistency and quality of the product.
[0016] Preferably, the two sealing layers are annular in structure, and the inner and outer edges of the two sealing layers are flush. The inner and outer edges of the two annular sealing layers are flush, which reduces the width of the side of the integrated sealing and heating assembly as a whole, and when the integrated sealing and heating assembly is pasted on the lens along the periphery of the lens, the black edge around the lens can be reduced, making the product appearance more beautiful.
[0017] Preferably, through precise cutting technology, the inner and outer edges of the two sealing layers are ensured to be neat without excess parts, so as to reduce the width of the side of the integrated sealing and heating assembly, and further reduce the black edge around the lens, making the product appearance more beautiful.
[0018] Preferably, the two sealing layers have the same thickness, which can seal the lens to the shell more tightly, and better fix and seal the lens.
[0019] Preferably, the heating flexible printed circuit board comprises a first fixing part in a ring structure, and the two sealing layers are fixed to the two side surfaces of the first fixing part respectively, and the inner and outer edges of the two sealing layers and the first fixing part are flush. The integrated heating flexible printed circuit board and the two sealing layers can be pasted to the lens at one time, which reduces the assembly and adjustment time, simplifies the production process, and significantly improves the production efficiency compared with the prior art of pasting layer by layer. Moreover, since the inner and outer edges of the two sealing layers and the first fixing part are flush, the edges of the lens can be easily aligned during pasting, which reduces the adjustment time, reduces the error rate in the production process, and improves the consistency and quality of the product. Furthermore, the flush arrangement of the inner and outer edges of the two sealing layers and the first fixing part can reduce the width thereof, thereby reducing the black edge of the lens, improving the aesthetics, and reducing the thickness of the whole machine.
[0020] Preferably, the two sealing layers and the first fixing part are in a rectangular ring structure, which can adapt to the rectangular lens and be pasted to one side surface of the rectangular lens at one time.
[0021] Preferably, the heating flexible printed circuit board further comprises a second fixing part protruding from the first fixing part, and the second fixing part is used for electrically connecting the main board, so that the electrical connection of the heating flexible printed circuit board is more convenient.
[0022] Preferably, the width between the inner and outer edges of the two sealing layers and the first fixing part is less than or equal to 1 mm, so that the width of the side edges of the two sealing layers and the first fixing part is reduced, and the width of the black edge of the lens is reduced to 1 mm. Compared with the 3 mm black edge width of the lens in the prior art, the integrated design of the present application reduces the black edge around the lens, and the appearance of the product is more beautiful.
[0023] Preferably, the sealing layer is a foam adhesive layer, a polyurethane foam layer, or a silica gel pad, which all have good sealing and bonding properties, and thus can better seal and protect the lens.
[0024] Correspondingly, the utility model also provides a sealed defogging lens system, which comprises a shell, a lens, a main board and an integrated sealing and heating assembly as described above, the integrated sealing and heating assembly is fixed to the inner side surface of the lens along the periphery of the lens, and the heating flexible printed circuit board is electrically connected with the main board.
[0025] Preferably, the inner wall of the shell is provided with a bearing part, and the lens is fixed to the bearing part by the integrated sealing and heating assembly, so as to realize the mounting and sealing of the lens.
[0026] Compared with the prior art, the integrated sealing and heating assembly of the utility model, including the heating flexible printed circuit board and the two sealing layers in an integrated structure, the two sealing layers are fixed on the two sides of the heating flexible printed circuit board, therefore, the integrated sealing and heating assembly can be attached to one side of the lens by one-time pasting. Compared with the prior art, the pasting process is simplified from multiple times to one time, and the following technical effects are achieved:
[0027] I. Simplify the production process and improve the production efficiency. Since only one-time pasting is required, compared with the prior art, the adjustment and alignment are required multiple times, the assembly steps and adjustment time are reduced, the production process is simplified, and the production efficiency is significantly improved. At the same time, the error rate in the production process is also reduced, and the consistency and quality of the product are improved.
[0028] II. Reduce the production cost. The present application only needs one-time pasting, reduces the error rate in the production process, reduces the waste of materials, reduces the cost of materials, and also reduces the labor cost and time cost. Therefore, the overall production cost is effectively reduced, which is beneficial to large-scale production.
[0029] III. Reduce the black edge of the lens and improve the aesthetics. Since the integrated sealing and heating assembly is pasted on the lens at one time, the assembly avoidance space required in the prior art when pasting layer by layer is saved, thereby reducing the side width of the integrated sealing and heating assembly, thereby reducing the black edge around the lens, making the product appearance more beautiful, meeting the demand of modern users for high-value products, and improving the market competitiveness.
[0030] IV. Reduce the thickness of the whole machine. Since the size of the black edge around the lens is reduced, the thickness of the whole machine is reduced, the equipment is more lightweight and portable, and the user experience is improved.
[0031] Correspondingly, the sealed defogging lens system with the integrated sealing and heating assembly of the utility model also has the above technical effects. BRIEF DESCRIPTION OF DRAWINGS
[0032] Figure 1 is a structural schematic view of the integrated sealing and heating assembly of the utility model.
[0033] Figure 2 is Figure 1 the exploded view.
[0034] Figure 3 isFigure 1 A sectional view.
[0035] Figure 4 yes Figure 3 A magnified view of a portion of the image.
[0036] Figure 5 yes Figure 1 A schematic diagram showing the integrated sealed heating component attached to the lens.
[0037] Figure 6 This is a structural schematic diagram of the sealed defogging lens system of this utility model.
[0038] Figure 7 yes Figure 6 The exploded diagram.
[0039] Figure 8 yes Figure 6 A sectional view. Detailed Implementation
[0040] Embodiments of the present invention will now be described with reference to the accompanying drawings, in which similar element reference numerals represent similar elements. It should be noted that the directional descriptions involved in the present invention, such as up, down, left, right, front, and back, indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the technical solutions of this application or / 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, and therefore should not be construed as a limitation of this application. The terms "first," "second," etc., described are only used to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.
[0041] Combination Figures 1-8 As shown, the integrated sealing and heating assembly 110 provided by this utility model is mainly suitable for optical lenses 120 that require defogging. By integrating heating and sealing functions, it achieves efficient defogging and sealing protection for optical lenses 120 in low-temperature environments. It is particularly suitable for defogging and sealing protection of scanning lenses 120 in PDA (Personal Digital Assistant) devices used in cold chain environments. However, it is not limited to use in PDA devices; the integrated sealing and heating assembly 110 can also be applied to any other equipment that requires protection of optical components.
[0042] Let's combine the following... Figures 1-4As shown, in an embodiment of the present application, the integrated sealing and heating assembly 110 comprises a heating flexible printed circuit board (FPC) 111 and two sealing layers 112, and the two sealing layers 112 are respectively fixed on the two sides of the heating flexible printed circuit board 111, and the two sealing layers 112 are arranged in an upper-lower corresponding manner.
[0043] In an embodiment, the two sealing layers 112 are arranged in a flush manner with the outer edges of the heating flexible printed circuit board 111. In this way, when the integrated sealing and heating assembly 110 is pasted on the lens 120, the edges of the lens 120 can be aligned conveniently, the adjustment time can be reduced, the error rate in the production process can be reduced, and the consistency and quality of the product can be improved.
[0044] Continue to combine Figures 1-4 As shown, in an embodiment, the two sealing layers 112 are in a ring structure, that is, the central parts of the two sealing layers 112 are hollow. In addition, the shapes of the inner and outer edges of the two sealing layers 112 are the same. The overall shape of each sealing layer 112 and the shape of the internal hollow structure are not specifically limited and can be flexibly arranged according to the shape of the applied lens 120. Specifically, the overall shape of each sealing layer 112 and the shape of the internal hollow structure can be a regular shape or an irregular shape. The two sealing layers 112 are respectively fixed on the two sides of the heating flexible printed circuit board 111, and the inner and outer edges of the two sealing layers 112 are arranged in an upper-lower alignment manner, that is, the widths of the upper and lower opposite parts of the two sealing layers 112 are the same. Figure 5 As shown, when the integrated sealing and heating assembly 110 is pasted on the lens 120, the integrated sealing and heating assembly 110 can be pasted directly along the periphery of the lens 120, and the three-layer composite material can be pasted on the lens 120 only once. After pasting, the edges of the two sealing layers 112 and the heating flexible printed circuit board 111 are aligned with the periphery of the lens 120. Compared with the way of pasting the sealing layer 112 and the heating flexible printed circuit board 111 on the lens 120 in sequence in the prior art, the integrated structure in the present application reduces the assembly times and the adjustment time, thereby improving the production efficiency; and the black edge around the lens 120 can be reduced, and the appearance of the product is more beautiful.
[0045] In the present embodiment, after the two sealing layers 112 are respectively fixed on the two sides of the heating flexible printed circuit board 111, the excess part can be cut off through a precision cutting technology, so as to ensure that the inner and outer edges of the two sealing layers 112 are neat and have no excess part. Of course, the upper and lower alignment of the inner and outer edges of the two sealing layers 112 can also be ensured through other ways.
[0046] The following will be described in combination withFigures 1-5 As shown, in one embodiment, the two sealing layers 112 are both in rectangular ring structure to adapt to the lens 120 in rectangular structure. In addition, the width of each side of the two sealing layers 112 is the same. The width of the four sides of each sealing layer 112 can be the same or different. Preferably, the width of the four sides of each sealing layer 112 is the same, that is, the width of each side of the two sealing layers 112 is the same. Meanwhile, the thickness of the two sealing layers 112 is the same. In this way, when the two sealing layers 112 are respectively adhered to the two sides of the heating flexible printed circuit board 111, the two sealing layers 112 are arranged symmetrically above and below the heating flexible printed circuit board 111, and the outer edges of the two sealing layers 112 are flush with the outer edges of the heating flexible printed circuit board 111. When the lens 120 is adhered to the shell through the integrated sealing and heating assembly 110, the two sealing layers 112 can better fix and seal the lens 120.
[0047] Understandably, in other embodiments, the thickness of the two sealing layers 112 can also be different, which is flexibly set according to the sealing requirements in different applications.
[0048] Continuing to combine Figures 1-4 As shown, in one embodiment of the present application, the heating flexible printed circuit board 111 includes a first fixing part 1111 in ring structure and a second fixing part 1112 protruding from the first fixing part 1111. The first fixing part 1111 is in rectangular ring structure and is used to fix the two sealing layers 112. The second fixing part 1112 is in long strip structure and protrudes from any side of the first fixing part 1111 to electrically connect the main board, which will be described in detail later.
[0049] In this embodiment, the width of the four sides of the first fixing part 1111 is the same as the width of the corresponding side of the two sealing layers 112. Preferably, the width of the four sides of the first fixing part 1111 is the same and the width of each side of the two sealing layers 112 is the same. The two sealing layers 112 are respectively fixed to the two sides of the first fixing part 1111, so that the inner and outer edges of the two sealing layers 112 and the first fixing part 1111 are flush, and thus the edges of the lens 120 are easily aligned during adhesion, as shown in Figure 5 As shown, the adjustment time is reduced, the error rate in the production process is reduced, the consistency and quality of the product are improved, and the overall width of each side of the integrated sealing and heating assembly 110 is reduced. After being adhered to the lens 120, the black edge around the lens 120 is reduced, so that the appearance of the product is more beautiful, and the thickness of the whole machine is reduced.
[0050] Continuing to combine Figures 1-5As shown, in an embodiment of the present application, the sealing layer 112 is preferably formed by a foam adhesive. The foam adhesive has good thermal conductivity and adhesion, and will not deform and lose adhesion at high temperatures, thus being able to form better sealing protection for the lens 120. The heating flexible printed circuit board 111 is not specifically limited, and a suitable heating FPC can be selected, as long as it has good electrical conductivity and durability.
[0051] In the present embodiment, the sealing layer 112 is formed by coating and curing. Specifically, the heating flexible printed circuit board 111 is laid flat on a workbench, and clamps are used to fix the four corners to prevent movement. Then, an automatic glue coating machine is used to uniformly coat the foam adhesive on one side of the first fixed portion 1111 of the heating flexible printed circuit board 111. The coating thickness should be adjusted according to the design requirements, and uniformity and no bubbles should be ensured. After coating, a spatula is used to gently scrape the foam adhesive surface to further eliminate bubbles and unevenness.
[0052] Then, the foam adhesive is subjected to pressure and heat curing. Specifically, the heating flexible printed circuit board 111 coated with foam adhesive is placed in a pressure device, and the pressure time and pressure are set according to the material properties. At the same time, the foam adhesive and the heating flexible printed circuit board 111 are heated by a heating device, and the temperature and time are set according to the curing requirements of the foam adhesive. After the pressure and heating process is completed, the foam adhesive is firmly bonded to one side of the heating flexible printed circuit board 111, thereby obtaining a sealing layer 112 on one side of the heating flexible printed circuit board 111, and then cooling to room temperature.
[0053] According to the above method, another sealing layer 112 is formed on the other side of the first fixed portion 1111, which will not be described again.
[0054] Finally, the excess part of the two sealing layers 112 is cut off by precise cutting technology, ensuring that the inner and outer edges of the sealing layer 112 are neat without excess part, and the inner and outer edges of the two sealing layers 112 are flush with the inner and outer edges of the first fixed portion 1111. Thus, the integrated sealing and heating assembly 110 is obtained.
[0055] It should be noted that during the formation of the sealing layer 112 described above, the working environment needs to be ensured to be a dust-free environment to avoid impurities affecting the adhesion effect of the foam adhesive, and the temperature and humidity need to be adjusted and maintained within a suitable range.
[0056] It can be understood that the sealing layer 112 is not limited to be formed by coating the foam glue, and the sealing layer 112 can be pre-formed and then adhered to the two side surfaces of the first fixing part 1111 respectively. In addition, other materials can also be used to form the sealing layer 112, such as a polyurethane foam layer silicone rubber pad, etc. These materials have good sealing and bonding properties, and thus can better seal and protect the lens 120.
[0057] Again in combination with Figure 1 , Figures 3-4 It can be understood that the sealing layer 112 is not limited to be formed by coating the foam glue, and the sealing layer 112 can be pre-formed and then adhered to the two side surfaces of the first fixing part 1111 respectively. In addition, other materials can also be used to form the sealing layer 112, such as a polyurethane foam layer silicone rubber pad, etc. These materials have good sealing and bonding properties, and thus can better seal and protect the lens 120.
[0058] In combination with Figure 5 As the sealing layer 112 is formed by pre-coating the foam glue on the side surface of the first fixing part 1111, it is not necessary to reserve a sealing layer 112 with sufficient width to adhere the heating flexible printed circuit board 111. Specifically, when the integrated sealing and heating assembly 110 is adhered to the rectangular lens 120, it is only necessary to adhere it along the circumference of the rectangular lens 120, and only one adhesion is required. In the prior art, the sealing layer 112 and the heating flexible printed circuit board 111 are adhered layer by layer on the lens 120. In order to ensure the adhesion and facilitate the adhesion of the heating flexible printed circuit board 111, the sealing layer 112 needs to reserve a sufficient width to form an assembly avoiding space, thereby resulting in a wider black edge width of the lens 120. The integrated sealing and heating assembly 110 of the present application only needs one adhesion, and thus the assembly avoiding space in the prior art can be omitted, so that the width of each side of the integrated sealing and heating assembly 110 is reduced. When the integrated sealing and heating assembly 110 is adhered to the circumference of the lens 120, the black edge width of the lens 120 can be reduced to 1 mm. Compared with the structure of the lens 120 with a black edge width of 3 mm in the prior art, the integrated design of the present application reduces the black edge around the lens 120, and makes the product appearance more beautiful. In addition, one adhesion also reduces the number of assembly and the adjustment time, significantly improves the production efficiency, and reduces the error rate in the production process, improves the consistency and quality of the product.
[0059] In the present application, since the black edge size of the lens 120 is reduced compared with the prior art, the overall thickness can be reduced. In a specific embodiment, the thickness of the lens 120 is reduced from 5 mm in the prior art to 3 mm, thereby making the device more lightweight and portable.
[0060] It should be noted that the design of the heating FPC can also be adjusted according to specific applications, for example, more heating areas are added or the heating power is optimized, etc., to improve the defogging effect.
[0061] The following will be described in combination with Figures 6-8 As shown in the embodiment of the utility model, a sealed defogging lens system 100 is also provided, which comprises an integrated sealing and heating assembly 110, a lens 120, a main board 130 and a shell 140. The main board 130 is installed on the shell 140, and the installation mode of the main board 130 is a conventional mode in the art. The integrated sealing and heating assembly 110 is fixed to one side of the lens 120 along the periphery of the lens 120, and the lens 120 is pasted to the shell 140 through the integrated sealing and heating assembly 110. Moreover, the heating flexible printed circuit board 111 is electrically connected with the main board 130, thereby realizing communication between the two, and the fog on the lens 120 is removed through heating of the heating flexible printed circuit board 111 to prevent the lens 120 from fogging.
[0062] The following will be described in combination with Figures 7-8 As shown in the embodiment, a bearing portion 141 is protruded on the inner side wall of the shell 140, and the width of the bearing portion 141 is greater than or equal to the width of the first fixing portion 1111 and the sealing layer 112. When the lens 120 is installed, the lens 120 is pasted to the bearing portion 141 through the sealing layer 112 of the integrated sealing and heating assembly 110, thereby realizing fixation of the lens 120, achieving installation and sealing of the lens 120, ensuring good sealing performance of the code scanning head lens 120, and making the other side of the lens 120 flush with the end of the shell 140. In addition, the second fixing portion 1112 is bent downward, extends downward through the space in the middle of the bearing portion 141 and is electrically connected to the main board 130, thereby realizing communication between the heating flexible printed circuit board 111 and the main board 130.
[0063] In the utility model, the lens 120, the main board 130 and the shell 140 are all conventional structures known to those skilled in the art, and thus will not be described in detail.
[0064] The following will be described in combination with Figures 1-8 As shown in the embodiment, a bearing portion 141 is protruded on the inner side wall of the shell 140, and the width of the bearing portion 141 is greater than or equal to the width of the first fixing portion 1111 and the sealing layer 112. When the lens 120 is installed, the lens 120 is pasted to the bearing portion 141 through the sealing layer 112 of the integrated sealing and heating assembly 110, thereby realizing fixation of the lens 120, achieving installation and sealing of the lens 120, ensuring good sealing performance of the code scanning head lens 120, and making the other side of the lens 120 flush with the end of the shell 140. In addition, the second fixing portion 1112 is bent downward, extends downward through the space in the middle of the bearing portion 141 and is electrically connected to the main board 130, thereby realizing communication between the heating flexible printed circuit board 111 and the main board 130.
[0065] Firstly, the integrated sealing and heating assembly 110 is pasted to one side of the lens 120 using special clamps and tools, and the integrated sealing and heating assembly 110 is as close as possible to the edge of the lens 120 during pasting, so that the outer edge of the integrated sealing and heating assembly 110 is flush with the outer edge of the lens 120, as shown in Figure 5As shown, and ensure close-fitting, guarantee good sealing of the scanning code head lens 120. Because the integrated sealing and heating assembly 110 is used, only one pasting is needed to complete the pasting of the two sealing layers 112 and the heating flexible printed circuit board 111. Compared with the prior art method of pasting the sealing layer 112, the heating flexible printed circuit board 111, and the sealing layer 112 on the lens 120 in sequence, the integrated sealing and heating assembly 110 of the present application reduces the pasting steps and adjustment time, thereby simplifying the production process and significantly improving the production efficiency; at the same time, it also reduces the error rate in the production process and improves the consistency and quality of the product. In addition, since no assembly avoidance space needs to be reserved, the width of the two sealing layers 112 and the first fixing part 1111 of the heating flexible printed circuit board 111 can be reduced. After the integrated sealing and heating assembly 110 is pasted on the lens 120, the width of the black edge around the lens 120 is reduced, thereby making the product appearance more beautiful, meeting the needs of modern users for high-value products, and improving market competitiveness.
[0066] Then, the lens 120 with the integrated sealing and heating assembly 110 pasted thereon is assembled to the shell 140, that is, the lens 120 is assembled to the bearing part 141, and the sealing layer 112 of the integrated sealing and heating assembly 110 is pasted to the bearing part 141, as shown in Figure 6 、 Figure 8 As shown, thereby realizing the installation and sealing of the lens 120 and guaranteeing the good sealing of the lens 120.
[0067] Finally, the main board 130 is assembled to the shell 140, and the main board 130 is electrically connected with the second fixing part 1112 of the heating flexible printed circuit board 111, realizing the communication between the heating flexible printed circuit board 111 and the main board 130. Thus, the assembly of the sealed defogging lens system 100 is completed.
[0068] In addition, the assembled sealed defogging lens system 100 can also be tested. In an embodiment of the present application, the sealed defogging lens system 100 is suitable for PDA equipment, so when the assembly is completed, the PDA equipment is placed in an environmental test box to simulate different temperature and humidity conditions, especially in a low temperature state, the sealing and defogging functions of the scanning code head lens 120 are tested, and the test data is recorded to analyze the durability and reliability of the assembly. Of course, when the sealed defogging lens system 100 is applied to other equipment, it is simulated and tested according to the specific use environment.
[0069] In summary, due to the integrated sealing heating assembly 110, the heating flexible printed circuit board 111 and the two sealing layers 112 are integrated, and the two sealing layers 112 are fixed on the two sides of the heating flexible printed circuit board 111, so that the integrated sealing heating assembly 110 can be attached to one side of the lens 120 by one-time pasting. Compared with the prior art, the pasting process is simplified from multiple times to one time, and the following technical effects are achieved:
[0070] I. Simplify the production process and improve the production efficiency. Since only one-time pasting is required, compared with the prior art, the adjustment and alignment are required multiple times, the assembly steps and adjustment time are reduced, the production process is simplified, and the production efficiency is significantly improved. At the same time, the error rate in the production process is reduced, and the consistency and quality of the product are improved.
[0071] II. Reduce the production cost. The present application only needs one-time pasting, reduces the error rate in the production process, reduces the waste of materials, reduces the material cost, and also reduces the labor cost and time cost. Therefore, the overall production cost is effectively reduced, which is beneficial to mass production.
[0072] III. Reduce the black edge of the lens 120 and improve the aesthetics. Since the integrated sealing heating assembly 110 is pasted on the lens 120 at one time, the assembly avoidance space required when pasting layer by layer in the prior art is saved, thereby reducing the side width of the integrated sealing heating assembly 110, thereby reducing the black edge around the lens 120, making the product appearance more beautiful, meeting the demand of modern users for high-value products, and improving the market competitiveness.
[0073] IV. Reduce the thickness of the whole machine. Since the size of the black edge around the lens 120 is reduced, the thickness of the whole machine is reduced, the equipment is more lightweight and portable, and the user experience is improved.
[0074] Correspondingly, the sealed defogging lens system 100 with the integrated sealing heating assembly 110 also has the above technical effects.
[0075] Other structures of the sealed defogging lens system 100 involved in the present application are conventional structures known to those skilled in the art, and will not be described in detail here.
[0076] The above disclosure is only the preferred embodiment of the present application, and of course cannot limit the scope of the present application. Therefore, equivalent changes made within the scope of the present application still fall within the scope of the present application.
Claims
1. An integrated sealed heating assembly, characterized by, The utility model relates to a kind of integrated sealing heating components, comprising: Heating flexible printed circuit board; Two sealing layers, two The sealing layer is annular structure, two The sealing layer is respectively fixed on the two side surfaces of the heating flexible printed circuit board, and two The sealing layer is arranged in correspondence with up and down, and the inner and outer edges of two The sealing layer is arranged in correspondence with up and down, and the outer edges of two The sealing layer, the heating flexible printed circuit board are arranged in correspondence with up and down.
2. The integrated sealed heating assembly of claim 1, wherein, The thickness of two The sealing layer is same.
3. The integrated sealed heating assembly of claim 1, wherein, The heating flexible printed circuit board includes annular structure's first fixed part, two The sealing layer is respectively fixed on the two side surfaces of the first fixed part, and the inner and outer edges of two The sealing layer, the first fixed part are flush.
4. The integrated sealed heating assembly of claim 3, wherein, The heating flexible printed circuit board further includes the second fixed part of the first fixed part, and the second fixed part is used for electrically connecting mainboard.
5. The integrated sealed heating assembly of claim 3, wherein, The width between the inner and outer edges of two The sealing layer, the first fixed part is less than or equal to 1 millimeter.
6. The integrated sealed heating assembly of any one of claims 1-5, wherein, The sealing layer is foam rubber layer, polyurethane foam layer or silica gel pad.
7. A sealed defogging lens system comprising a housing and a lens and a main board mounted to the housing, respectively, characterized in that, Further comprising: The integrated sealing heating component as claimed in any one of claims 1-6 is fixed to the inner side surface of the lens along the circumference of the lens, wherein the heating flexible printed circuit board is electrically connected with the mainboard.
8. The sealed defogging mirror system of claim 7, wherein, The inner wall of the shell is provided with a bearing portion, and the lens is fixed to the bearing portion through the integrated sealing heating component.