Sealed housing assembly and thermal imaging thermodetector

Abstract

The utility model provides a sealing housing assembly and a thermal imaging thermodetector, and the sealing housing assembly comprises a first housing structure which comprises a first housing, a first protruding rib which surrounds the periphery of the first housing and is arranged in a protruding manner, and a sealing groove which surrounds the periphery of the first housing and is arranged in a recessed manner; the second shell structure comprises a second shell, a limiting groove which surrounds the periphery of the second shell and is concavely arranged, and a bone inserting rib which surrounds the periphery of the second shell and is convexly arranged; wherein at least one part of the first convex rib is inserted into the limiting groove and is in limiting fit with the inner wall of the limiting groove, and at least one part of the bone inserting rib is inserted into the sealing groove and is in limiting fit with the inner wall of the sealing groove, so that the first shell and the second shell are jointly sealed. According to the utility model, a dual-sealing structure is formed, so that the interiors of the first shell and the second shell can be effectively sealed; the sealing housing assembly provided by the utility model can be efficiently applied to the thermal imaging thermodetector, so that the thermal imaging thermodetector has good waterproof and dustproof performance.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal imaging temperature measuring equipment, in particular to a sealed housing component and a thermal imaging temperature measuring instrument. Background Art

[0002] At present, with the continuous iteration and update of infrared thermal imaging detection technology, the performance of thermal imaging equipment has been continuously improved. Combined with the development of corresponding image analysis software technology, this technology has been more and more widely used in various fields such as industrial and agricultural production and people's lives. Nowadays, infrared thermal imaging equipment is no longer limited to the large-sized pan / tilt, ball camera, gun camera and other equipment that need to be fixedly installed in the past. It has also developed handheld thermal imaging thermometers with visual temperature measurement that can be flexibly used in various industries for operation and maintenance inspections, repairs and leak detection, handheld observation thermal imagers that can be handheld for outdoor observation, personnel search, and natural observation, as well as other handheld thermal imaging equipment with different professional functions that meet the needs of various industries.

[0003] The main design intention of the handheld thermal imaging thermometer is to facilitate the staff to carry it with them, and to use it more conveniently and flexibly, so as to be suitable for various handheld working environments. During the product design and production process, whether it can be effectively waterproof and dustproof and have good sealing performance is particularly important to the working reliability of the handheld thermal imaging thermometer product itself.

[0004] Most of the existing handheld thermal imaging thermometers are usually designed to meet the needs of indoor use. For example, in rainy, humid or dusty environments, the existing handheld thermal imaging thermometers are prone to malfunction and damage due to water and dust ingress. At the same time, the existing handheld thermal imaging thermometers are usually fixed with screws when assembling the external shell, which is prone to misalignment during assembly. In addition, the existing handheld thermal imaging thermometers are prone to displacement and misalignment due to deformation of the cover due to external force when in use. In addition, in order to meet higher standards of waterproof and dustproof requirements, the existing handheld thermal imaging thermometers usually have a rubber sealing ring installed between the front and rear shells. However, since the handheld thermal imaging thermometer needs to meet the ergonomic grip requirements, the shell structure at the grip is relatively slender, making it difficult to assemble the rubber sealing ring, thereby reducing the production assembly efficiency and the yield rate. Utility Model Content

[0005] The utility model provides a sealed housing component and a thermal imaging thermometer, which at least solve the problems in the prior art that the handheld thermal imaging thermometer is easy to get into water and dust and is easy to be misaligned during assembly.

[0006] In order to solve the above problems, according to one aspect of the utility model, a sealed shell assembly is provided, comprising: a first shell structure, comprising a first shell, a first convex rib surrounding and protruding along the outer circumference of the first shell, and a sealing groove surrounding and recessed along the outer circumference of the first shell; the sealing groove and the first convex rib are arranged in sequence along the inner and outer directions of the first shell; a second shell structure, comprising a second shell, a limiting groove surrounding and recessed along the outer circumference of the second shell, and a bone rib surrounding and protruding along the outer circumference of the second shell; the bone rib and the limiting groove are arranged in sequence along the inner and outer directions of the second shell; wherein, at least a portion of the first convex rib is inserted into the limiting groove and is limitedly matched with the inner wall of the limiting groove, and at least a portion of the bone rib is inserted into the sealing groove and is limitedly matched with the inner wall of the sealing groove, so as to jointly seal the first shell and the second shell.

[0007] Furthermore, the first shell has a first mounting cover surface between the first rib and the sealing groove, and the second shell has a second mounting cover surface between the bone inserting rib and the limiting groove. The first mounting cover surface abuts against the second mounting cover surface to jointly seal the first shell and the second shell.

[0008] Further, the first installation cover surface and the second installation cover surface are arranged in the same plane when abutting each other, and the first installation cover surface is perpendicular to or has an angle with respect to the depth direction of the sealing groove.

[0009] Furthermore, the first rib is completely inserted into the limiting groove and has an interference fit with the inner wall of the limiting groove.

[0010] Furthermore, the interference between the first convex rib and the limiting groove is in the range of 0.1 to 0.2 mm; and / or, the first convex rib is made of hard rubber material, and the inner wall of the limiting groove is made of thermoplastic polyurethane material.

[0011] Furthermore, the bone insert is completely inserted into the sealing groove, and there is a gap between one end of the bone insert facing the sealing groove and the bottom wall of the sealing groove, and the gap forms an installation cavity; the sealing shell assembly also includes a sealing ring, which is arranged in the installation cavity and cooperates with the installation cavity to seal the gap between the bone insert and the sealing groove.

[0012] Furthermore, the sealing ring is made of elastic material, and the sealing ring is interference fit with the inner wall of the installation cavity, and the interference range is 0.2 to 0.5 mm.

[0013] Furthermore, the first shell structure also includes an anti-stop rib, which is arranged around and protrudes along the outer periphery of the first shell; the anti-stop rib is located on the inner side of the sealing groove and is limitedly matched with the side wall of the bone insert to constrain the bone insert.

[0014] According to another aspect of the utility model, a thermal imaging thermometer is provided, which includes a front cover shell assembly, a lower cover shell assembly and a lens seat assembly, the front cover shell assembly has a second shell structure, the lens seat assembly has a second shell structure, and the lower cover shell assembly has two first shell structures; wherein the second shell structure of the front cover shell assembly and one first shell structure of the lower cover shell assembly constitute the above-mentioned sealed shell assembly, and the second shell structure of the lens seat assembly and the other first shell structure of the lower cover shell assembly constitute the above-mentioned sealed shell assembly.

[0015] Further, the lens seat assembly is fixed to the lower cover shell assembly by fastener connection; the front cover shell assembly is fixed to the lower cover shell assembly by fastener connection; the second shell structure of the front cover shell assembly has a first accommodating cavity for accommodating the thermal imaging temperature measuring device, the second shell structure has a bone rib and a limit groove arranged around the periphery of the first accommodating cavity, and the bone rib is located between the first accommodating cavity and the limit groove; the second shell structure of the lens seat assembly has a second accommodating cavity, the second shell structure has a bone rib and a limit groove arranged around the periphery of the second accommodating cavity, and the bone rib is located between the second accommodating cavity and the limit groove; the lower cover shell assembly includes a third accommodating cavity that passes through the two first shell structures in sequence; the first convex rib and the sealing groove of one first shell structure are respectively arranged around the periphery of one end of the third accommodating cavity, and the sealing groove is located between the third accommodating cavity and the first convex rib; the first convex rib and the sealing groove of the other first shell structure are respectively arranged around the periphery of the other end of the third accommodating cavity, and the sealing groove is located between the third accommodating cavity and the first convex rib; wherein the first accommodating cavity and the second accommodating cavity are respectively connected to the third accommodating cavity.

[0016] Applying the technical solution of the utility model, the utility model provides a sealed shell assembly, including: a first shell structure, including a first shell, a first convex rib surrounding and protruding along the outer circumference of the first shell, and a sealing groove surrounding and recessed along the outer circumference of the first shell; the sealing groove and the first convex rib are arranged in sequence along the inner and outer directions of the first shell; a second shell structure, including a second shell, a limiting groove surrounding and recessed along the outer circumference of the second shell, and a bone rib surrounding and protruding along the outer circumference of the second shell; the bone rib and the limiting groove are arranged in sequence along the inner and outer directions of the second shell; wherein, at least a portion of the first convex rib is inserted into the limiting groove and is limitedly matched with the inner wall of the limiting groove, and at least a portion of the bone rib is inserted into the sealing groove and is limitedly matched with the inner wall of the sealing groove, so as to jointly seal the first shell and the second shell.

[0017] The utility model forms a double sealing structure by arranging the first convex rib to cooperate with the limiting groove, and the bone insert rib to cooperate with the sealing groove, which can effectively seal the interior of the first shell and the second shell, thereby preventing water and dust from entering the interior of the first shell and the second shell; by arranging the first convex rib and the sealing groove to surround the outer periphery of the first shell respectively, and the limiting groove and the bone insert rib to surround the outer periphery of the second shell respectively, the sealing effect of the double seal as a whole is further improved, and the misalignment of the first shell structure and the second shell structure during assembly is avoided, and at the same time, the cooperation of the first shell structure and the second shell structure is effectively enhanced. Strength, thereby avoiding the problem of offset and dislocation caused by deformation due to external force during use; the sealed shell assembly proposed by the utility model can be efficiently applied to the thermal imaging thermometer, thereby cleverly realizing the sealing between the front cover shell assembly, the lower cover shell assembly, and the lens seat assembly after assembly, without the need to set additional sealing materials (such as rubber sealing rings), eliminating the assembly material steps and material requirements, reducing costs and increasing efficiency, and making the thermal imaging thermometer product have good waterproof and dustproof performance, protecting the product from the influence of the external harsh environment, and having high working reliability; the utility model has a simple structure and reliable operation, and is suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 The internal structure diagram of the thermal imaging thermometer provided by the embodiment of the utility model is shown;

[0020] Figure 2 Shows Figure 1 A local enlarged schematic diagram of the middle A;

[0021] Figure 3 A schematic diagram showing the internal structure of a partial structure of a thermal imaging thermometer provided in an embodiment of the utility model is shown;

[0022] Figure 4 A partial structural schematic diagram of a front cover assembly provided by an embodiment of the utility model is shown;

[0023] Figure 5 A partial structural schematic diagram of a lower housing assembly provided in an embodiment of the utility model is shown;

[0024] Figure 6 A partial structural schematic diagram of the lower housing assembly provided by an embodiment of the utility model at another angle is shown;

[0025] Figure 7A partial structural schematic diagram of a lens mount assembly provided in an embodiment of the utility model is shown.

[0026] The above drawings include the following reference numerals:

[0027] 10. first shell structure; 11. first shell body; 12. first convex rib; 13. sealing groove; 14. first installation cover surface; 15. anti-stop rib;

[0028] 20. Second shell structure; 21. Second shell; 22. Limiting groove; 23. Bone reinforcement; 24. Second installation cover surface;

[0029] 30. Installation cavity;

[0030] 40. front cover assembly; 41. first accommodating chamber;

[0031] 50. Lower cover assembly; 51. Third accommodating chamber;

[0032] 60. Lens mount assembly; 61. Second accommodating chamber. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0034] like Figures 1 to 7 As shown, an embodiment of the utility model provides a sealed shell assembly, including: a first shell structure 10, including a first shell 11, a first convex rib 12 surrounding and protruding along the outer circumference of the first shell 11, and a sealing groove 13 surrounding and recessed along the outer circumference of the first shell 11; the sealing groove 13 and the first convex rib 12 are sequentially arranged along the inner and outer directions of the first shell 11; a second shell structure 20, including a second shell 21, a limiting groove 22 surrounding and recessed along the outer circumference of the second shell 21, and a bone rib 23 surrounding and protruding along the outer circumference of the second shell 21; the bone rib 23 and the limiting groove 22 are sequentially arranged along the inner and outer directions of the second shell 21; wherein, at least a portion of the first convex rib 12 is inserted into the limiting groove 22, and is limitedly matched with the inner wall of the limiting groove 22, and at least a portion of the bone rib 23 is inserted into the sealing groove 13, and is limitedly matched with the inner wall of the sealing groove 13, so as to jointly seal the first shell 11 and the second shell 21.

[0035] The utility model forms a double sealing structure by arranging the first convex rib 12 to cooperate with the limiting groove 22, and the bone insert rib 23 to cooperate with the sealing groove 13, which can effectively seal the interior of the first shell 11 and the second shell 21, thereby preventing water and dust from entering the interior of the first shell 11 and the second shell 21; by arranging the first convex rib 12 and the sealing groove 13 respectively around the outer periphery of the first shell 11, and the limiting groove 22 and the bone insert rib 23 respectively around the outer periphery of the second shell 21, the overall sealing effect of the double seal is further improved, and the misalignment of the first shell structure 10 and the second shell structure 20 during assembly is avoided, and the first shell structure 10 and the second shell structure 20 are effectively enhanced. The matching strength of the shell structure 10 and the second shell structure 20 can avoid the problem of displacement and misalignment caused by external force deformation during use; the sealed shell assembly proposed by the utility model can be efficiently applied to the thermal imaging thermometer, and the sealing between the front cover shell assembly 40, the lower cover shell assembly, and the lens seat assembly 60 after assembly is cleverly achieved, without the need to set additional sealing materials (such as rubber sealing rings), eliminating the assembly material steps and material requirements, reducing costs and increasing efficiency, and making the thermal imaging thermometer product have good waterproof and dustproof performance, protecting the product from the influence of harsh external environment, and having high working reliability; the utility model has a simple structure and reliable operation, and is suitable for large-scale promotion and use.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the first shell 11 further has a first installation cover surface 14 between the first convex rib 12 and the sealing groove 13, and the second shell 21 further has a second installation cover surface 24 between the bone insertion rib 23 and the limiting groove 22. The first installation cover surface 14 and the second installation cover surface 24 are in abutment with each other to seal the first shell 11 and the second shell 21 together. By setting the first installation cover surface 14 and the second installation cover surface 24 in abutment with each other, the moving distance required for external foreign matter to enter the interior is increased, thereby further improving the sealing effect, and a certain distance is provided between the first convex rib 12 and the bone insertion rib 23, thereby facilitating accurate installation of the first shell structure 10 and the second shell structure 20.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the first mounting cover surface 14 and the second mounting cover surface 24 are arranged in the same plane when they are in contact, and the first mounting cover surface 14 is perpendicular to or has an angle with respect to the depth direction of the sealing groove 13. In this way, the first mounting cover surface 14 and the second mounting cover surface 24 can still be closely matched when there are assembly errors and processing tolerances, further improving the sealing effect between the first mounting cover surface 14 and the second mounting cover surface 24.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the first rib 12 is completely inserted into the limiting groove 22 and has an interference fit with the inner wall of the limiting groove 22. By setting the first rib 12 and the limiting groove 22 to have an interference fit, the connection strength between the first rib 12 and the limiting groove 22 is improved and the sealing is ensured.

[0039] It should be noted that: Figure 2 As shown, the depth directions of the limiting groove 22 and the sealing groove 13 are parallel, so as to ensure the simultaneity and consistency of the cooperation between the first convex rib 12 and the limiting groove 22 and the cooperation between the bone inserting rib 23 and the sealing groove 13 .

[0040] Specifically, the interference range between the first rib 12 and the limiting groove 22 is 0.1-0.2 mm; and / or, the first rib 12 is made of hard rubber material, and the inner wall of the limiting groove 22 is made of thermoplastic polyurethane material. By setting the interference range between the first rib 12 and the limiting groove 22, it is ensured that the strength and sealing of the interference fit meet the actual requirements, and the first rib 12 and the limiting groove 22 can be subsequently disassembled and installed without damage.

[0041] It should be noted that: in a specific embodiment of the present invention, part of the structure of the first shell structure 10 (for example: the first rib 12) adopts hard plastic material; hard plastic material refers to a type of polymer material with hardness and strength, also known as hard plastic; this type of material usually has high wear resistance, chemical corrosion resistance and high temperature resistance, and is often used in the manufacture of industrial parts, mechanical parts, electronic product casings, etc.; hard plastic material is made of polymer resin or resin and fillers, plasticizers, stabilizers and other auxiliary ingredients through processing and molding.

[0042] The hard plastic materials that can be used for part of the structure of the first shell structure 10 include polyvinyl chloride (PVC), polypropylene (PP), polyamide (PA), polystyrene (PS), polycarbonate (PC), etc.; these materials usually have high hardness, tensile strength and wear resistance, and are suitable for occasions that need to withstand high pressure and friction; the processing methods of hard plastic materials include injection molding, extrusion, calendering, etc., and can be processed and formed into first ribs 12 and first shell structures 10 of various shapes.

[0043] In addition, it should be noted that: in a specific embodiment of the present invention, the second shell structure 20 is made of thermoplastic polyurethane material as a whole. TPU is the abbreviation of thermoplastic polyurethane, which is an elastomeric material with excellent mechanical and chemical properties; it has the characteristics of wear resistance, oil resistance, solvent resistance, tear resistance, bending resistance and cold resistance. The TPU material used in the inner wall of the limit groove 22 can be made by polymerization reaction of polyols such as polyether and polyester and isocyanate compounds such as diisocyanate; it has the characteristics of high elasticity, high tensile strength, high wear resistance, oil resistance and solvent resistance.

[0044] like Figure 1 , Figure 2 and Figure 3 As shown, the bone ribs 23 are completely inserted into the sealing groove 13, and there is a gap between one end of the bone ribs 23 facing the sealing groove 13 and the bottom wall of the sealing groove 13, as shown in FIG. Figure 2 As shown, the gap forms an installation cavity 30; the sealing housing assembly also includes a sealing ring, which is arranged in the installation cavity 30 and is limitedly matched with the installation cavity 30 to seal the gap between the bone rib 23 and the sealing groove 13. This arrangement allows the sealing ring to be installed later to be constrained and limitedly arranged in the installation cavity 30.

[0045] It is worth noting that: the installation cavity 30 reserves space for assembling the sealing ring. If a higher waterproof and dustproof level requirement needs to be met in the future, a rubber sealing ring can be installed to achieve it. In addition, it should be noted that after testing, when the rubber sealing ring is not used, the product can achieve the IP54 level waterproof requirement by relying only on the cooperation of the above-mentioned first rib 12, the limiting groove 22, the bone rib 23 and the sealing groove 13 (i.e. double sealing).

[0046] Specifically, the sealing ring is made of elastic material, and the sealing ring is interference fit with the inner wall of the installation cavity 30, and the interference range is 0.2-0.5 mm.

[0047] It should be noted that: in a specific embodiment of the present invention, the interference refers to the gap or overlap between two parts assembled together; it is usually used in engineering design and manufacturing processes to ensure that the parts can be assembled and work correctly. The calculation of the interference in this application usually needs to consider two main factors: basic size and tolerance; basic size refers to the ideal size of the designed part, and tolerance refers to the dimensional deviation that may exist in actual manufacturing.

[0048] In the present invention, the general steps for calculating the interference amount are as follows: 1. Determine the basic dimensions of two mating parts, which are usually determined through design drawings or part specifications; 2. Determine the tolerances of the two parts, which can be determined by the capabilities and requirements of the manufacturing process, and can usually be found in the design drawings or part specifications; 3. Calculate the upper and lower limits based on the basic dimensions and tolerances, which are the basic dimensions plus the tolerance and minus the tolerance, respectively; 4. Calculate the interference amount; the interference amount is usually the difference between the upper and lower limits.

[0049] The following is an example of the interference calculation and design process of the utility model:

[0050] It is known that the basic size of the first rib 12 is 5 mm, the tolerance is ±0.02 mm, and the basic size of the limit groove 22 is 5.05 mm, the tolerance is ±0.03 mm, then the interference can be calculated by the following steps: the upper limit size of the first rib 12 is 5+0.02=5.02 mm, the lower limit size is 5-0.02=4.98 mm, the upper limit size of the limit groove 22 is 5.05+0.03=5.08 mm, the lower limit size is 5. 05-0.03=5.02mm, the interference amount is the upper limit size of the first rib 12 minus the lower limit size of the limiting groove 22, or the upper limit size of the limiting groove 22 minus the lower limit size of the first rib 12, that is, 5.08-4.98=0.1mm; through the above steps, the interference amount range between the first rib 12 and the limiting groove 22 can be designed and calculated to ensure that the interference assembly effect between the first rib 12 and the limiting groove 22 meets the actual use requirements.

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, the first shell structure 10 further includes an anti-stop rib 15, which surrounds and protrudes along the outer periphery of the first shell 11; the anti-stop rib 15 is located on the inner side of the sealing groove 13, and cooperates with the side wall of the bone insertion rib 23 to constrain the bone insertion rib 23. By providing the anti-stop rib 15, waterproof performance is achieved, and the problem of assembly misalignment between the first shell structure 10 and the second shell structure 20 can be effectively prevented; in addition, obvious deformation due to external force during the use of the later product is avoided.

[0052] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the utility model also provides a thermal imaging thermometer, which includes a front cover shell assembly 40, a lower cover shell assembly 50 and a lens seat assembly 60, the front cover shell assembly 40 has a second shell structure 20, the lens seat assembly 60 has a second shell structure 20, and the lower cover shell assembly 50 has two first shell structures 10; wherein, the second shell structure 20 of the front cover shell assembly 40 and one first shell structure 10 of the lower cover shell assembly 50 constitute the above-mentioned sealed shell assembly, and the second shell structure 20 of the lens seat assembly 60 and the other first shell structure 10 of the lower cover shell assembly 50 constitute the above-mentioned sealed shell assembly.

[0053] The utility model ingeniously utilizes the structural features of the front cover shell assembly 40, the lower cover shell assembly 50, and the lens seat assembly 60 to achieve assembly sealing; the TPU material limit groove 22 on the front cover shell assembly 40 and the lens seat assembly 60 is pressed onto the first convex rib 12 on the lower cover shell assembly 50 to achieve the first protective seal; the bone insert rib 23 on the front cover shell assembly 40 and the lens seat assembly 60 is inserted into the sealing groove 13 of the lower cover shell assembly 50 to achieve the second seal; the double sealing structure enables the thermal imaging thermometer product to have good waterproof and dustproof performance, protects the product from the influence of the external harsh environment, and has high working reliability.

[0054] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the lens seat assembly 60 is fixed to the lower housing assembly 50 by means of fastener connection (for example, screw connection); the front housing assembly 40 is fixed to the lower housing assembly 50 by means of fastener connection (for example, screw connection); the second housing structure 20 of the front housing assembly 40 has a first accommodating cavity 41 for accommodating the thermal imaging temperature measuring device inside, the bone ribs 23 and the limiting grooves 22 of the second housing structure 20 are respectively arranged around the periphery of the first accommodating cavity 41, and the bone ribs 23 are located between the first accommodating cavity 41 and the limiting grooves 22; the second housing structure 20 of the lens seat assembly 60 has a second accommodating cavity 61 inside, the bone ribs 23 and the limiting grooves 22 of the second housing structure 20 are respectively arranged around the periphery of the second accommodating cavity 41 The outer periphery of the cavity 61 is arranged, and the bone rib 23 is located between the second accommodating cavity 61 and the limiting groove 22; the lower cover shell assembly 50 includes a third accommodating cavity 51 that sequentially passes through the two first shell structures 10; the first convex rib 12 and the sealing groove 13 of one first shell structure 10 are respectively arranged around the outer periphery of one end of the third accommodating cavity 51, and the sealing groove 13 is located between the third accommodating cavity 51 and the first convex rib 12; the first convex rib 12 and the sealing groove 13 of the other first shell structure 10 are respectively arranged around the outer periphery of the other end of the third accommodating cavity 51, and the sealing groove 13 is located between the third accommodating cavity 51 and the first convex rib 12; wherein the first accommodating cavity 41 and the second accommodating cavity 61 are respectively communicated with the third accommodating cavity 51.

[0055] It should be noted that the bone insertion ribs 23 on the front cover shell assembly 40 and the lens mount assembly 60 are respectively guided and inserted into the sealing groove 13 of the lower cover shell assembly 50, thereby achieving waterproof performance. At the same time, under the action of the anti-stop ribs 15, it can effectively prevent the assembly misalignment between the various cover shells and the deformation of the cover shell due to external force when the product is used later.

[0056] Now the specific working process and principle of an application embodiment of the utility model are described in detail as follows:

[0057] 1. Installation of the lens seat assembly 60: The lens seat assembly 60 is fixed to the lower housing assembly 50 by screws. After the assembly is completed, the first installation cover surface 14 and the second installation cover surface 24 are parallel to each other, the bone rib 23 is inserted into the sealing groove 13, and the first convex rib 12 is inserted into the limit groove 22 (the first convex rib 12 of hard rubber material has an interference of about 0.15mm after insertion); at this time, the anti-stop rib 15 is located on the inner side of the bone rib 23, and a certain gap is left between the bone rib 23 and the sealing groove 13 for reserving the assembly of the sealing ring (the gap in this solution is 1mm, and the sealing ring with a wire diameter of 1.2 to 1.5mm can be assembled). Sealing ring); since the first convex rib 12 is inserted into the limiting groove 22 by interference fit, the first seal of the equipment is assembled by hard rubber material and TPU material structure (TPU material is a soft material with a certain amount of compression); the second seal is composed of the bone rib 23 and the sealing groove 13, which can effectively block the entry of water vapor and achieve waterproof performance; at the same time, a gap is left between the two for assembling the sealing ring. When it is necessary to meet the IP protection requirements of a higher level, a sealing ring can be installed; the anti-stop rib 15 is located on the inner side of the bone rib 23 after assembly, and its function is to effectively prevent the assembly dislocation between the housings and the deformation of the product due to external force when it is used in the later stage;

[0058] 2. Regarding the installation of the front cover assembly 40: the front cover assembly 40 is fixedly assembled to the lower cover assembly 50 by screws, and the state after the assembly is completed is: the first installation cover surface 14 and the second installation cover surface 24 are parallel to each other, the bone rib 23 is inserted into the sealing groove 13, and the first convex rib 12 is inserted into the limit groove 22 (the first convex rib 12 has an interference of about 0.15mm after insertion); at this time, the anti-stop rib 15 is located on the inner side of the bone rib 23, and a certain gap is left between the bone rib 23 and the sealing groove 13 for reserving the assembly of the sealing ring (the gap in this scheme is 1mm, and the wire diameter 1 can be assembled .2~1.5mm sealing ring); since the first convex rib 12 is inserted into the limiting groove 22 by interference fit, the first seal of the equipment is assembled by hard rubber material and TPU material; the second seal is composed of the bone rib 23 and the sealing groove 13, which can effectively block the entry of water vapor to achieve waterproof performance; at the same time, a gap is left between the two for assembling the sealing ring, and a sealing ring can be installed when a higher level of IP protection is required; the anti-stop rib 15 is located on the inner side of the bone rib 23 after assembly, and its function is to effectively prevent the assembly dislocation between the housings and the deformation of the product due to external force when it is used in the later stage;

[0059] 3. After completing the assembly between the above-mentioned front cover shell assembly 40, the lower cover shell assembly 50 and the lens mount assembly 60, the assembly between the relevant shells of the handheld thermal imaging device is basically completed; after completing the assembly between the front cover shell assembly 40 and the lower cover shell assembly 50, and between the lens mount assembly 60 and the lower cover shell assembly 50, double sealing is achieved due to the above-mentioned structural features.

[0060] In summary, the utility model provides a sealed shell assembly and a thermal imaging thermometer. The utility model forms a double sealing structure by arranging the first convex rib 12 to cooperate with the limiting groove 22 and the bone rib 23 to cooperate with the sealing groove 13, which can effectively seal the interior of the first shell 11 and the second shell 21, thereby preventing water and dust from entering the interior of the first shell 11 and the second shell 21; by arranging the first convex rib 12 and the sealing groove 13 respectively around the outer periphery of the first shell 11, and the limiting groove 22 and the bone rib 23 respectively around the outer periphery of the second shell 21, the overall sealing effect of the double seal is further improved, and the first shell structure 10 and the second shell structure 20 are prevented from being misaligned during assembly. The sealing shell assembly proposed by the utility model can be effectively applied to the thermal imaging thermometer, thereby cleverly realizing the sealing of the front cover shell assembly 40, the lower cover shell assembly, and the lens seat assembly 60 after assembly, without the need to set additional sealing materials (such as rubber sealing rings), eliminating the assembly material steps and material requirements, reducing costs and increasing efficiency, and making the thermal imaging thermometer product have good waterproof and dustproof performance, protecting the product from the influence of the harsh external environment, and having high working reliability; the utility model has a simple structure and reliable operation, and is suitable for large-scale promotion and use.

[0061] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0063] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0064] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0065] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0066] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sealed housing assembly, characterized in that: include: The first shell structure (10) comprises a first shell (11), a first convex rib (12) surrounding and protruding along the outer circumference of the first shell (11), and a sealing groove (13) surrounding and recessed along the outer circumference of the first shell (11); the sealing groove (13) and the first convex rib (12) are sequentially arranged along the inner and outer directions of the first shell (11); The second shell structure (20) comprises a second shell (21), a limiting groove (22) surrounding and recessed along the outer circumference of the second shell (21), and a bone rib (23) surrounding and protruding along the outer circumference of the second shell (21); the bone rib (23) and the limiting groove (22) are sequentially arranged along the inner and outer directions of the second shell (21); At least a portion of the first convex rib (12) is inserted into the limiting groove (22) and is limitedly matched with the inner wall of the limiting groove (22); at least a portion of the bone insert rib (23) is inserted into the sealing groove (13) and is limitedly matched with the inner wall of the sealing groove (13) to jointly seal the first shell (11) and the second shell (21).

2. The sealed housing assembly according to claim 1, characterized in that The first shell (11) further comprises a first mounting cover surface (14) between the first convex rib (12) and the sealing groove (13), and the second shell (21) further comprises a second mounting cover surface (24) between the bone insertion rib (23) and the limiting groove (22), and the first mounting cover surface (14) and the second mounting cover surface (24) are in abutment with each other to jointly seal the first shell (11) and the second shell (21).

3. The sealed housing assembly according to claim 2, characterized in that The first installation cover surface (14) and the second installation cover surface (24) are arranged in the same plane when they are in contact, and the first installation cover surface (14) is perpendicular to or has an angle with respect to the depth direction of the sealing groove (13).

4. The sealed housing assembly according to claim 1, characterized in that The first convex rib (12) is completely inserted into the limiting groove (22) and is interference fit with the inner wall of the limiting groove (22).

5. The sealed housing assembly according to claim 4, characterized in that The interference fit between the first convex rib (12) and the limiting groove (22) is in the range of 0.1 to 0.2 mm; and / or the first convex rib (12) is made of hard rubber material, and the inner wall of the limiting groove (22) is made of thermoplastic polyurethane material.

6. The sealed housing assembly according to claim 1, wherein: The bone insert (23) is completely inserted into the sealing groove (13), and a gap is provided between one end of the bone insert (23) facing the sealing groove (13) and the bottom wall of the sealing groove (13), and the gap forms a mounting cavity (30); the sealing housing assembly further comprises a sealing ring, which is arranged in the mounting cavity (30) and is limitedly matched with the mounting cavity (30) to seal the gap between the bone insert (23) and the sealing groove (13).

7. The sealed housing assembly according to claim 6, characterized in that The sealing ring is made of elastic material, and the sealing ring is interference fit with the inner wall of the installation cavity (30), and the interference fit ranges from 0.2 to 0.5 mm.

8. The sealed housing assembly according to claim 1, wherein: The first shell structure (10) further comprises an anti-stop rib (15), which surrounds and protrudes along the outer circumference of the first shell (11); the anti-stop rib (15) is located on the inner side of the sealing groove (13) and is limitedly matched with the side wall of the bone insert rib (23) to constrain the bone insert rib (23).

9. A thermal imaging thermometer, characterized in that: The thermal imaging thermometer comprises a front cover shell assembly (40), a lower cover shell assembly (50) and a lens mount assembly (60), wherein the front cover shell assembly (40) has a second shell structure (20), the lens mount assembly (60) has a second shell structure (20), and the lower cover shell assembly (50) has two first shell structures (10); wherein the second shell structure (20) of the front cover shell assembly (40) and one first shell structure (10) of the lower cover shell assembly (50) constitute the sealed shell assembly described in any one of claims 1 to 8, and the second shell structure (20) of the lens mount assembly (60) and another first shell structure (10) of the lower cover shell assembly (50) constitute the sealed shell assembly described in any one of claims 1 to 8.

10. The thermal imaging thermometer according to claim 9, characterized in that: The lens seat assembly (60) is fixed to the lower cover assembly (50) by means of a fastener connection; the front cover assembly (40) is fixed to the lower cover assembly (50) by means of a fastener connection; The second shell structure (20) of the front cover shell assembly (40) has a first accommodating cavity (41) for accommodating a thermal imaging temperature measuring device, the bone ribs (23) and the limiting grooves (22) of the second shell structure (20) are respectively arranged around the periphery of the first accommodating cavity (41), and the bone ribs (23) are located between the first accommodating cavity (41) and the limiting grooves (22); The second shell structure (20) of the lens seat assembly (60) has a second accommodating cavity (61) inside, the bone insertion rib (23) and the limiting groove (22) of the second shell structure (20) are respectively arranged around the outer periphery of the second accommodating cavity (61), and the bone insertion rib (23) is located between the second accommodating cavity (61) and the limiting groove (22); The lower housing assembly (50) comprises a third accommodating cavity (51) which sequentially passes through the two first housing structures (10); the first convex rib (12) and the sealing groove (13) of one of the first housing structures (10) are respectively arranged around the outer periphery of one end of the third accommodating cavity (51), and the sealing groove (13) is located between the third accommodating cavity (51) and the first convex rib (12); the first convex rib (12) and the sealing groove (13) of the other first housing structure (10) are respectively arranged around the outer periphery of the other end of the third accommodating cavity (51), and the sealing groove (13) is located between the third accommodating cavity (51) and the first convex rib (12); Wherein, the first accommodating chamber (41) and the second accommodating chamber (61) are respectively communicated with the third accommodating chamber (51).

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