Warning lamp

Abstract

The invention discloses a warning lamp, and relates to the technical field of electrical equipment.The warning lamp comprises a first shell, a second shell and a circuit assembly, and the first shell is provided with a containing groove; the second shell is connected with the first shell in a stacked mode, the second shell can cover the containing groove, and a welding structure is arranged on the edge of the surface, facing the first shell, of the second shell in a surrounding and protruding mode. The welding structure is configured to be capable of being fused in the ultrasonic welding process to form a connecting layer connecting the first shell and the second shell. The circuit assembly is mounted in the accommodating groove; wherein the surface, facing the first shell, of the second shell is provided with a reinforcing rib, the reinforcing rib comprises an abutting part, and the abutting part is arranged away from the second shell and abuts against the circuit assembly. According to the technical scheme, the overall structural stability and reliability of the warning lamp are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a warning light. Background Art

[0002] Warning lights are widely used in transportation, fire protection, chemical industry, electric power and other fields. They usually need to have good sealing and waterproof performance and structural strength to cope with complex working conditions such as rain erosion and mechanical vibration, and ensure that warning lights can operate stably in various complex environments.

[0003] Most of the current warning lights use ultrasonic welding to fasten the upper and lower shells. By setting a welding structure on the end face of the lower shell and a concave structure on the end face of the upper shell, the welding structure and the concave structure are used to cooperate and abut, so that the welding structure melts with the concave structure during the ultrasonic welding process to form a connecting layer connecting the upper and lower shells, thereby realizing the sealed production and assembly of the warning light.

[0004] However, the welding structure on the end face of the lower shell is prone to insufficient melting or overflow leakage during melting, resulting in the molten material being unable to fill the concave structure well, causing insufficient welding between the upper shell and the lower shell, which can easily affect the sealing performance of the warning light and reduce the warning light's anti-drop and anti-dismantling strength. Summary of the Invention

[0005] The main purpose of the present invention is to provide a warning light, aiming to improve the overall structural stability and reliability of the warning light.

[0006] To achieve the above-mentioned purpose, the warning light proposed in the present invention includes a first shell, a second shell and a circuit assembly, the first shell is provided with a receiving groove; the second shell is stacked and connected with the first shell, and the second shell can cover the receiving groove, and the second shell has a convex welding structure around the edge of the surface facing the first shell, and the welding structure is configured to be able to melt during ultrasonic welding to form a connecting layer connecting the first shell and the second shell; the circuit assembly is installed in the receiving groove; wherein, the surface of the second shell facing the first shell is provided with a reinforcing rib, and the reinforcing rib includes an abutting portion, and the abutting portion is arranged away from the second shell and abuts against the circuit assembly.

[0007] In one embodiment, the reinforcing rib includes a connecting body, a support member and an elastic member, the connecting body is connected to the side of the second shell facing the first shell, and a connecting hole is provided at one end of the connecting body facing the first shell; the support member is movably inserted into the connecting hole, and the end of the support member facing away from the connecting body is formed as the abutment portion; the elastic member is provided in the connecting hole and connects the support member and the connecting body.

[0008] In one embodiment, the material of the abutting portion is an elastic material; and / or the melting point of the abutting portion is greater than the melting point of the welding structure.

[0009] In one embodiment, the first shell includes a panel and a surrounding plate, the surrounding plate is connected to the panel and is enclosed with the panel to form the receiving groove; the end face of the surrounding plate is provided with a limiting groove, and the limiting groove is arranged facing away from the panel; the end face of the second shell is provided with a limiting boss, and the limiting boss is arranged facing the first shell, and the limiting boss is inserted into the limiting groove; the welding structure is provided on the end face of the limiting boss, and the welding structure can be melted to form a connecting layer connecting the limiting boss and the inner wall of the limiting groove.

[0010] In one embodiment, a first boss is provided on the end face of the enclosure, the first boss is arranged with its back to the panel, the first boss is arranged around the receiving groove, the first boss has relative outer walls and inner walls, the inner wall is spaced apart from the limiting boss, and the inner wall and the end face of the enclosure form the limiting groove; the thickness of the enclosure along the first direction is W, the thickness of the first boss along the first direction is W1, the height of the first boss along the second direction is H, 1.2mm≤W≤4mm, W1=W / 3, H=W / 3.

[0011] In one embodiment, the end surface of the enclosure is provided with a second boss and a third boss that are relatively spaced apart, the second boss and the third boss are arranged with their backs to the panel, the second boss and the third boss are both arranged around the receiving groove, the second boss, the third boss and the end surface of the enclosure form the limiting groove, and the opposite sides of the limiting boss are respectively spaced apart from the second boss and the third boss; the thickness of the enclosure along the first direction is W, and the distance between the second boss and the third boss along the first direction is W2, 1.2mm≤W≤4mm, W2=W / 3.

[0012] In one embodiment, the second boss is inclined toward the side wall of the third boss, and the third boss is inclined toward the side wall of the second boss; opposite sides of the limiting boss are parallel to the side walls of the second boss and the third boss, respectively.

[0013] In one embodiment, in the second direction, the inclination angle of the side wall of the second boss is α, the inclination angle of the side wall of the third boss is β, and 3°≤α≤5°, 3°≤β≤5°.

[0014] In one embodiment, the gap width between the side wall of the limiting boss and the inner side wall of the limiting groove is D, and 0.03 mm ≤ D ≤ 0.15 mm.

[0015] In one embodiment, the end face of the first shell is provided with a wavy texture, the wavy texture is arranged facing the second shell, the wavy texture is arranged around the receiving groove, the welding structure is relatively abutted against the wavy texture, and the welding structure and the wavy texture can be melt-connected to form a connecting layer; and / or, the second shell is provided with a light-transmitting portion, and the light-transmitting portion is configured to be able to transmit light emitted by the light-emitting element of the circuit component.

[0016] The technical solution of the present invention provides a raised welding structure on the second shell and provides reinforcing ribs on the second shell. The abutment portion at the end of the reinforcing rib abuts and supports the circuit assembly, allowing the welding head of the ultrasonic welding device to act on the second shell for welding. This effectively reduces the vibration of the circuit assembly in the first shell during the welding process, allowing the welding device to fully heat and melt the welding structure at a certain welding power and welding amplitude. The molten material can flow toward the end face of the first shell under the action of gravity, better allowing the molten material to flow and fully fill the gap between the first and second shells, reducing overflow and leakage of molten material and ensuring stable welding of the first and second shells. The abutment and support of the reinforcing ribs and the circuit assembly allows the second shell to better withstand the high-frequency vibration and pressure of the welding head, preventing the second shell from being ruptured by large external forces during the welding process. This achieves a better structural strength design for the warning light and further improves the overall structural stability and reliability of the warning light. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of an embodiment of a warning light provided by the present invention;

[0019] Figure 2 for Figure 1 An exploded view of an embodiment of a warning light;

[0020] Figure 3 for Figure 1 An exploded view of the first shell and the second shell of an embodiment of a warning light;

[0021] Figure 4 for Figure 1 A cross-sectional view of an embodiment of a warning light;

[0022] Figure 5 for Figure 4 A partial enlarged view of an embodiment before welding;

[0023] Figure 6 for Figure 4 A partial enlarged view of another embodiment after welding process;

[0024] Figure 7 for Figure 4 A partial enlarged view of point B in the middle;

[0025] Figure 8 for Figure 1 A cross-sectional view of an embodiment of a second housing of a warning light;

[0026] Figure 9 for Figure 8 A partial enlarged view of point C in the middle;

[0027] Figure 10 for Figure 1 A partial cross-sectional view of an embodiment of the enclosure and the second housing of the warning light;

[0028] Figure 11 for Figure 1 A partial cross-sectional view of another embodiment of the enclosure and second housing of the warning light.

[0029] Description of Figure Numbers:

[0030] 100. Warning light; 10. First shell; 10a. Receiving groove; 11. Panel; 13. Enclosure; 13a. Limiting groove; 131. First boss; 133. Second boss; 135. Third boss; 15. Wavy texture; 30. Second shell; 31. Welding structure; 33. Connecting layer; 35. Reinforcing rib; 351. Abutting portion; 353. Connecting body; 3531. Connecting hole; 355. Support member; 357. Elastic member; 37. Limiting boss; 39. Translucent portion; 50. Circuit assembly.

[0031] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] Warning lights are widely used in transportation, fire protection, chemical industry, electric power and other fields. They usually need to have good sealing and waterproof performance and structural strength to cope with complex working conditions such as rain erosion and mechanical vibration, and ensure the stable operation of warning lights in a variety of complex environments. Most of the current warning lights use ultrasonic welding to fasten the upper shell and the lower shell. By setting a welding structure on the end face of the lower shell and a concave structure on the end face of the upper shell, the welding structure and the concave structure are matched and abutted, so that the welding structure melts with the concave structure during the ultrasonic welding process to form a connecting layer to connect the upper shell and the lower shell, so as to achieve the sealed production and assembly of the warning light. However, the welding structure on the end face of the lower shell is prone to insufficient melting or overflow leakage during melting, resulting in the molten material being unable to fill the concave structure well, resulting in insufficient welding between the upper shell and the lower shell, which is easy to affect the sealing performance of the warning light and reduces the anti-drop and anti-disassembly strength of the warning light.

[0036] It is understandable that since most warning lights house and mount the circuit assembly on the lower shell, with the upper shell covering the lower shell and welded to the lower shell to form a sealed structure, when an ultrasonic welding device is applied to the lower shell for welding, and the circuit assembly disposed within the lower shell is susceptible to vibration due to the lower shell's vibration, it is often necessary to reduce the output power and amplitude of the welding device to reduce damage to the circuit assembly due to vibration. This can easily lead to insufficient frictional heating of the welding structure on the lower shell, resulting in insufficient melting, and thus inadequate welding of the first and second shells. Furthermore, the raised welding structure on the end face of the lower shell often cooperates with the concave structure on the end face of the upper shell, with molten material filling the concave structure for welding. However, after the welding structure melts, it is easy for gravity to cause it to overflow from the gap between the first and second shells, resulting in the molten material being unable to properly fill the concave structure of the upper shell, thus resulting in inadequate welding of the first and second shells. To address the above problems, the present invention provides a warning light 100.

[0037] See also Figures 1 to 3 In one embodiment of the present invention, the warning light 100 includes a first housing 10, a second housing 30, and a circuit assembly 50. The first housing 10 is provided with a receiving groove 10a. The second housing 30 is stacked and connected to the first housing 10, and the second housing 30 is arranged to cover the receiving groove 10a. A welding structure 31 is provided around the edge of the surface of the second housing 30 facing the first housing 10. The welding structure 31 is configured to melt during ultrasonic welding to form a connecting layer 33 connecting the first and second housings 10, 30. The circuit assembly 50 is installed in the receiving groove 10a. The surface of the second housing 30 facing the first housing 10 is provided with a reinforcing rib 35. The reinforcing rib 35 includes an abutting portion 351, which is located away from the second housing 30 and abuts the circuit assembly 50.

[0038] In this embodiment, the first shell 10 can be designed as a box structure with one side open. The receiving groove 10a formed therein can refer to an installation area with a specific spatial structure. Specifically, it can be achieved by forming a recessed area on the inner side of the first shell 10 through an injection molding process, which is used to fix the circuit assembly 50 and provide a protective space for it. The surrounding protruding welding structure 31 can refer to a protruding structure that extends continuously along the surface edge of the second shell 30 facing the first shell 10. Specifically, it can be achieved by an annular protruding rib with a triangular cross-section, which preferentially melts under the action of ultrasonic energy to form a sealing connection layer 33. The reinforcing rib 35 can refer to a structural reinforcement component provided inside the second shell 30. Specifically, it can be achieved by an integrally formed rib structure. Its abutment portion 351 forms a surface contact with the circuit assembly 50 to disperse mechanical stress.

[0039] Specifically, the second shell 30 covers the opening of the receiving groove 10a of the first shell 10 by stacking, so that the warning light 100 can form a certain sealed protection space for the circuit component 50 by using the first shell 10 and the second shell 30. Figure 5 and Figure 6 As shown, during the ultrasonic welding process, the welding head of the ultrasonic welding device contacts the second shell 30 and transmits high-frequency mechanical vibrations to the second shell 30. This causes the protruding welding structure 31 on the second shell 30 to rub against the end surface of the first shell 10 to generate heat. This causes the welding structure 31 to melt under the action of a certain amount of heat, and the molten material fills the gap between the first shell 10 and the second shell 30. After the molten material cools, it forms a connecting layer 33 connecting the first shell 10 and the second shell 30, thus achieving a stable welding fixation between the first shell 10 and the second shell 30. By providing the protruding welding structure 31 on the upper second shell 30, the welding head can be brought into contact with the second shell 30 during the welding process. This causes the welding structure 31 to generate high-frequency friction heat with the end surface of the first shell 10, causing the welding structure 31 to melt. This allows the molten material to flow better under the action of gravity at the welding interface between the first shell 10 and the second shell 30, so that the molten material can fully fill the gap between the first shell 10 and the second shell 30, effectively reducing the overflow and leakage of molten material and achieving a better welding process for the warning light 100.

[0040] The second housing 30 is typically designed with a panel 11 or a cover structure. Using an ultrasonic welding device's welding head to contact the second housing 30 and transmit high-frequency mechanical vibrations to the second housing 30 can easily subject the second housing 30 to significant vibration. By providing a raised reinforcing rib 35 on the end surface of the second housing 30 facing the first housing 10, the abutting portion 351 of the reinforcing rib 35 can maintain contact with the circuit assembly 50, facilitating better securing the circuit assembly 50 within the receiving slot 10a. The abutment between the reinforcing rib 35 and the circuit assembly 50 also provides support for the second housing 30, allowing the second housing 30 to more stably withstand the high-frequency vibration and pressure of the welding head, effectively preventing the second housing 30 from cracking due to excessive force, and achieving greater overall structural strength for the warning light 100. Using the contact welding between the second housing 30 and the welding head effectively prevents the circuit assembly 50 from vibrating due to high-frequency vibrations. This allows the welding head to ensure sufficient melting of the weld structure 31 under a certain welding power and amplitude, achieving a more complete weld fixation between the first housing 10 and the second housing 30.

[0041] Among them, the circuit component 50 can be provided without circuit elements and wires at the position where it abuts with the abutting portion 351 of the reinforcing rib 35, and the position on the circuit component 50 can be made of a material with higher structural strength and melting point, so that the reinforcing rib 35 can form a more stable mutual abutment support structure with the circuit component 50, prevent the reinforcing rib 35 from crushing the circuit component 50, ensure the stable operation of the circuit component 50, and further improve the overall structural reliability and stability of the warning light 100.

[0042] The technical solution of this application provides a raised welding structure 31 on the second housing 30 and a reinforcing rib 35 on the second housing 30. The abutment portion 351 at the end of the reinforcing rib 35 abuts and supports the circuit assembly 50, allowing the ultrasonic welding head to perform welding on the second housing 30. This effectively reduces the vibration of the circuit assembly 50 within the first housing 10 during the welding process, allowing the welding device to fully heat and melt the welding structure 31 at a certain welding power and amplitude. Furthermore, molten material can flow toward the end surface of the first housing 10 under the action of gravity, effectively filling the gap between the first and second housings 10, 30, and reducing spillage and leakage of molten material, ensuring stable welding between the first and second housings 10, 30. Furthermore, the abutment and support provided by the reinforcing rib 35 and the circuit assembly 50 allows the second housing 30 to better withstand the high-frequency vibration and pressure of the welding head, preventing the second housing 30 from being cracked by large external forces during the welding process. This achieves a better structural strength design for the warning light 100, further improving the overall structural stability and reliability of the warning light 100.

[0043] See Figure 8 and Figure 9 In one embodiment of the present invention, the reinforcing rib 35 includes a connecting body 353, a support member 355 and an elastic member 357. The connecting body 353 is connected to the side of the second shell 30 facing the first shell 10, and a connecting hole 3531 is provided at the end of the connecting body 353 facing the first shell 10; the support member 355 is movably inserted into the connecting hole 3531, and the end of the support member 355 facing away from the connecting body 353 is formed as an abutment portion 351; the elastic member 357 is provided in the connecting hole 3531 and connects the support member 355 and the connecting body 353.

[0044] In this embodiment, the connecting body 353 may refer to a load-bearing structure fixed to the second housing 30, and may be specifically formed integrally with the second housing 30 using an injection molding process, and serves to form a mounting base for the support member 355. The support member 355 may refer to a contact component with axial movement, and may be specifically implemented as a metal rod or an engineering plastic cylinder, with its end forming dynamic contact with the circuit assembly 50. The elastic member 357 may refer to a mechanical element that provides a restoring elastic force, and may be specifically implemented as a coil spring or a rubber washer, and is used to maintain contact pressure between the support member 355 and the circuit assembly 50.

[0045] Specifically, the support member 355 is inserted into the connecting body 353 through the connecting hole 3531 and can move axially along the connecting hole 3531 under the elastic force of the elastic member 357. When the second housing 30 is assembled with the first housing 10, the abutment portion 351 of the support member 355 is displaced by the reaction force of the circuit assembly 50. The elastic member 357 is compressed and generates a counterforce, ensuring that the abutment portion 351 maintains stable contact with the circuit assembly 50. This structure automatically compensates for installation height errors of the circuit assembly 50 and avoids uneven pressure distribution caused by rigid contact. Furthermore, the combined design of the support member 355 and the elastic member 357 allows the support member 355 to achieve a certain elastic buffering effect under the elastic force of the elastic member 357. This helps to buffer the instantaneous force exerted by the reinforcing rib 35 on the circuit assembly 50, prevent damage to the circuit assembly 50 during the welding process, and further improve the overall structural stability and reliability of the warning light 100.

[0046] Through the above technical solution, the present application achieves dynamic elastic contact between the abutment portion 351 of the reinforcing rib 35 and the circuit assembly 50, effectively eliminating contact failure caused by part processing errors or assembly deviations. The continuous pressure provided by the elastic member 357 prevents damage to electronic components caused by rigid contact, thereby improving product reliability and service life.

[0047] See Figure 7 In one embodiment of the present invention, the abutting portion 351 is made of an elastic material. And / or the melting point of the abutting portion 351 is greater than the melting point of the welding structure 31 .

[0048] In this embodiment, the elastic material may refer to a material with compressible recovery properties, specifically rubber, silicone, or a thermoplastic elastomer, to provide a buffer and compensate for assembly clearance when the circuit assembly 50 contacts the abutment portion 351. Specifically, when the abutment portion 351 is made of an elastic material, during the assembly of the second housing 30 and the first housing 10, the elastic abutment portion 351 can adapt to installation position deviations of the circuit assembly 50 by deforming, thereby buffering the circuit assembly 50 from external shock or vibration.

[0049] The melting point of the abutting portion 351 being greater than the melting point of the welding structure 31 can mean that the melting temperature of the material of the abutting portion 351 is higher than the melting temperature of the material of the welding structure 31. This can be achieved by selecting materials such as silicone, rubber, nylon, or polyphenylene sulfide. This prevents the abutting portion 351 from melting and deforming during the ultrasonic welding process, ensuring that the welding structure 31 preferentially melts and fills the connection area. Specifically, when the melting point of the abutting portion 351 is higher than the melting point of the welding structure 31, during the ultrasonic welding process, when the welding structure 31 is heated and melted to form the connecting layer 33, the abutting portion 351, due to its higher melting point, maintains its structural integrity, preventing support failure or adhesion to the circuit assembly 50 due to its own melting, thereby maintaining the stability of the welding process and improving the overall structural reliability and stability of the warning light 100.

[0050] See Figure 3 and Figure 4 In one embodiment of the present invention, the first shell 10 includes a panel 11 and a surrounding plate 13, the surrounding plate 13 is connected to the panel 11, and is enclosed with the panel 11 to form a receiving groove 10a; the end face of the surrounding plate 13 is provided with a limiting groove 13a, and the limiting groove 13a is arranged with its back to the panel 11, and the end face of the second shell 30 is provided with a limiting boss 37, and the limiting boss 37 is arranged facing the first shell 10, and the limiting boss 37 is inserted into the limiting groove 13a, and the welding structure 31 is provided on the end face of the limiting boss 37, and the welding structure 31 can be melted to form a connecting layer 33 connecting the limiting boss 37 and the inner wall of the limiting groove 13a.

[0051] In this embodiment, the limiting groove 13a can refer to a groove structure provided on the end surface of the enclosure 13, which can be specifically implemented by machining or injection molding, and is used to accommodate the limiting boss 37 and limit its range of movement. The limiting boss 37 can refer to a raised structure provided on the end surface of the second shell 30, which can be specifically implemented by being integrally molded with the second shell 30, and is used to be inserted into the limiting groove 13a and cooperate with the welding structure 31 to form a fixed position. In this case, the welding structure 31 can be a layer of meltable material provided on the end surface of the limiting boss 37, which can be specifically implemented by thermoplastic resin material. After melting during the ultrasonic welding process, it fills the gap between the limiting groove 13a and the limiting boss 37.

[0052] Specifically, after the panel 11 and the enclosure 13 form the receiving groove 10a, a limiting groove 13a is machined on the end face of the enclosure 13, and a limiting boss 37 is set at the corresponding position of the second shell 30. During the assembly process, the limiting boss 37 is inserted into the limiting groove 13a, so that the welding structure 31 and the inner wall of the limiting groove 13a maintain a predetermined gap, so that the second shell 30 can move back and forth relative to the first shell 10 with the high-frequency vibration of the welding head, ensuring stable friction heating between the welding structure 31 and the end face of the enclosure 13. When the ultrasonic welding energy acts on the welding structure 31, the molten material is constrained by space and flows in a direction in the limiting groove 13a, filling the gap between the limiting boss 37 and the limiting groove 13a, forming a continuous and uniform connection layer 33. The inner wall of the limiting groove 13a forms a physical barrier to the molten material, preventing the material from overflowing to the outside of the shell.

[0053] By plugging and fitting the limiting groove 13a with the limiting boss 37, the melting area can be confined to the internal space of the groove body, ensuring that the welding material fully fills the gap while avoiding material overflow to cause structural deformation or sealing failure. The flow direction of the welding molten material is effectively controlled, making the thickness and distribution of the connecting layer 33 more uniform, significantly improving the sealing performance and structural strength of the shell connection part, and at the same time reducing the risk of poor assembly due to material overflow, further improving the structural stability and reliability of the warning light 100.

[0054] See Figure 10 In one embodiment of the present invention, a first boss 131 is provided on the end surface of the enclosure 13, and the first boss 131 is arranged with its back to the panel 11. The first boss 131 is arranged around the receiving groove 10a, and the first boss 131 has an outer wall and an inner wall relative to each other. The inner wall is spaced apart from the limiting boss 37, and the inner wall and the end surface of the enclosure 13 form a limiting groove 13a; the thickness of the enclosure 13 along the first direction is W, the thickness of the first boss 131 along the first direction is W1, and the height of the first boss 131 along the second direction is H, 1.2mm≤W≤4mm, W1=W / 3, H=W / 3.

[0055] In this embodiment, the first boss 131 may refer to a protruding structure arranged around the receiving groove 10a, which may be realized by injection molding or machining, such as Figure 5 and Figure 6As shown, the outer wall of the first boss 131 can be flush with the outer wall of the enclosure 13, and the inner wall of the first boss 131 is spaced apart from the inner wall of the enclosure 13, so that the inner wall of the first boss 131 can form a limiting groove 13a with the end surface of the enclosure 13. At this time, the limiting groove 13a is connected to the receiving groove 10a. The inner wall of the first boss 131 forms the boundary of the limiting groove 13a, which is used to constrain the position of the limiting boss 37 of the second housing 30. The first boss 131 structure provided on the end surface of the enclosure 13 can form a stepped structure design at the end of the enclosure 13, so that the first housing 10 and the second housing 30 can form a more stable assembly structure by staggering the first boss 131 and the limiting boss 37, thereby achieving better welding processing of the warning light 100.

[0056] like Figure 10 As shown, the first direction can be the direction of the plate surface of the panel 11 or the plane direction where the second shell 30 is located, and the second direction can be the direction in which the second shell 30 and the first shell 10 are stacked together, that is, the installation direction of the second shell 30 and the first shell 10. The second direction and the first direction can be perpendicular to each other. The enclosure 13 can extend along the second direction so that the first shell 10 can form a receiving groove 10a with a certain depth by using the enclosure 13 and the panel 11. In the first direction, the enclosure 13 can have a certain plate thickness W. By limiting the range of W, the structural strength and material cost can be balanced. The thickness W1 of the first boss 131 in the first direction and the height H in the second direction can both be proportional to W. This proportional design can improve the structural stability of the welding area.

[0057] Specifically, by making the plate thickness W of the enclosure 13 in the first direction greater than or equal to 1.2 mm, the enclosure 13 can be set with a plate of a certain thickness, so that the first shell 10 can have a certain structural strength, ensuring the overall structural strength of the warning light 100 shell; and by making W less than or equal to 4 mm, within this size range, the plate thickness of the enclosure 13 can be not too large, which is beneficial to reduce the waste of materials in the first shell 10 and achieve better economic performance of the warning light 100.

[0058] By setting the thickness W1 of the first boss 131 to W / 3 and the height H of the first boss 131 to W / 3, the first boss 131 can have a certain structural strength setting, ensuring the staggered matching and limiting of the first boss 131 and the limiting boss 37, thereby achieving a better welding effect of the warning light 100 shell.

[0059] Specifically, the retaining groove 13a formed between the inner sidewall of the first boss 131 and the end surface of the enclosure 13 is used to accommodate the retaining boss 37 of the second housing 30. During the ultrasonic welding process, the weld structure 31 is heated and melted, and then diffuses along the inner wall of the retaining groove 13a. By controlling the ratio of W, W1, and H, the molten material can evenly fill the gap between the retaining groove 13a and the retaining boss 37. For example, when the thickness W of the enclosure 13 is 3 mm, the thickness W1 and height H of the first boss 131 are both set to 1 mm. In this case, the depth and width of the retaining groove 13a adapt to the volume of the weld structure 31, better preventing molten material from overflowing, while also effectively ensuring the structural strength of the first boss 131, further improving the structural stability and reliability of the warning light 100.

[0060] See Figure 11 In one embodiment of the present invention, the end surface of the enclosure 13 is provided with a second boss 133 and a third boss 135 that are relatively spaced apart. The second boss 133 and the third boss 135 are arranged with their backs to the panel 11. The second boss 133 and the third boss 135 are both arranged around the receiving groove 10a. The second boss 133, the third boss 135 and the end surface of the enclosure 13 form a limiting groove 13a. The opposite sides of the limiting boss 37 are respectively spaced apart from the second boss 133 and the third boss 135; the thickness of the enclosure 13 along the first direction is W, and the distance between the second boss 133 and the third boss 135 along the first direction is W2, 1.2mm≤W≤4mm, and W2=W / 3.

[0061] In this embodiment, the second boss 133 may refer to a raised structure provided on the end surface of the enclosure 13. Specifically, it may be integrally formed with the enclosure 13 using an injection molding process. It is disposed around the receiving groove 10a and is used to form the sidewalls of the limiting groove 13a together with the third boss 135. The third boss 135 may refer to another raised structure provided on the end surface of the enclosure 13, spaced apart from the second boss 133. Its height and thickness may be the same as those of the second boss 133, and it is used to define the width and depth of the limiting groove 13a.

[0062] Specifically, the end surface of the enclosure 13 forms a retaining groove 13a by providing a second boss 133 and a third boss 135. When the retaining boss 37 of the second housing 30 is inserted into the retaining groove 13a, a gap is maintained between the retaining boss 37 and the second and third bosses 133, 135. This allows the retaining boss 37 to vibrate back and forth within the retaining groove 13a, causing the weld structure 31 to melt due to frictional heating between the inner wall of the retaining groove 13a. During the ultrasonic welding process, the material formed by the melted weld structure 31 can flow along the gap between the retaining boss 37 and the second and third bosses 133, 135, preventing excessive accumulation or overflow of material.

[0063] In the first direction, by ensuring that the spacing W2 between the second boss 133 and the third boss 135 is proportional to the thickness W of the enclosure 13, the width of the retaining groove 13a can be adapted to the overall structure of the enclosure 13, ensuring a uniform distribution of the weld connection layer 33 while avoiding a decrease in structural strength due to excessive gaps. Specifically, by ensuring that the thickness W of the enclosure 13 in the first direction is greater than or equal to 1.2 mm, the enclosure 13 can be constructed of a certain thickness, thereby ensuring that the first housing 10 has a certain structural strength and ensuring the overall structural strength of the warning light 100 housing. By ensuring that W is less than or equal to 4 mm, within this size range, the thickness of the enclosure 13 can be kept within a reasonable range, which helps reduce material waste in the first housing 10 and achieves better economic performance for the warning light 100. By setting the spacing W2=W / 3 between the second boss 133 and the third boss 135, the limiting groove 13a can be set in the middle part of the end face of the enclosure 13. At the same time, the spatial design of the limiting groove 13a can be more reasonable, which is conducive to achieving a more stable fitting installation between the enclosure 13 and the limiting boss 37, and further improving the structural stability and reliability of the warning light 100.

[0064] The limiting groove 13a structure formed by the second and third bosses 133, 135, combined with the spacing on both sides of the limiting boss 37, confines the molten material to a predetermined flow path, effectively preventing overflow. This facilitates more precise control of the molten material's flow range during ultrasonic welding, ensuring that the connecting layer 33 fully fills the gap between the limiting groove 13a and the limiting boss 37, thereby improving the sealing connection between the first shell 10 and the second shell 30. Furthermore, the double-sided limiting design of the second and third bosses 133, 135 enhances the structural strength of the end face of the enclosure 13, making the warning light 100 less susceptible to cracking when subjected to external impact and significantly improving its drop resistance.

[0065] See Figure 11 In one embodiment of the present invention, the second boss 133 is inclined toward the side wall of the third boss 135, and the third boss 135 is inclined toward the side wall of the second boss 133; the opposite sides of the limiting boss 37 are parallel to the side walls of the second boss 133 and the side walls of the third boss 135, respectively.

[0066] In this embodiment, the inclined sidewall of the second boss 133 facing the third boss 135 may refer to forming an inclined surface on the side of the second boss 133 adjacent to the third boss 135. This can be achieved through bevel processing or mold forming. This inclined surface can guide the flow direction of the molten material during welding. The inclined sidewall of the third boss 135 facing the second boss 133 may refer to forming an inclined surface on the side of the third boss 135 adjacent to the second boss 133. This inclined surface forms a symmetrical structure with the inclined surface of the second boss 133, which can synergistically limit the diffusion range of the molten material. The opposite sides of the limiting boss 37 are parallel to the sidewalls of the second boss 133 and the sidewalls of the third boss 135, respectively. This may refer to the sidewalls of the limiting boss 37 maintaining a parallel gap with the inclined sidewalls of the second boss 133 and the third boss 135, respectively. This gap is used to accommodate the molten material and form a uniform connection layer 33.

[0067] Specifically, if Figure 11 As shown, by tilting the opposing sidewalls of the second and third bosses 133, 135, the limiting groove 13a can be configured to have a groove structure that is wider at the top and narrower at the bottom. During ultrasonic welding, the tilted sidewalls of the second and third bosses 133, 135 guide the molten material to flow in an inclined direction, preventing excessive accumulation or overflow of the material in the vertical direction. The parallel gap design between the sides of the limiting boss 37 and the tilted sidewalls of the second and third bosses 133, 135 ensures that the molten material is evenly distributed within the gap, forming a continuous and dense connection layer 33. This structure ensures that the welding area is completely filled by restricting the flow path of the molten material, thereby improving the sealing and connection strength between the first shell 10 and the second shell 30.

[0068] By coordinating the inclined side walls and the parallel gaps, the flow trajectory of the molten material is effectively constrained, avoiding the problem of material overflow or insufficient filling, and at the same time improving the structural uniformity of the connecting layer 33, which is conducive to better solving the problem of reduced sealing performance caused by the overflow of molten material in the welding structure 31, ensuring that the connecting layer 33 completely covers the welding area, and improving the waterproof performance and impact resistance of the warning light 100.

[0069] See Figure 11 In one embodiment of the present invention, in the second direction, the inclination angle of the side wall of the second boss 133 is α, and the inclination angle of the side wall of the third boss 135 is β, 3°≤α≤5°, 3°≤β≤5°.

[0070] In this embodiment, the inclination angle refers to the degree of inclination of the sidewalls of the second and third bosses 133, 135 relative to the second direction. This can be achieved by adjusting the mold's inclination angle. This angle range ensures that the molten material flows evenly during the welding process and fully fills the gap. The inclination directions of the sidewalls of the second and third bosses 133, 135 are parallel to the sides of the limiting boss 37. This can be achieved by designing the mold structure symmetrically. The inclined sidewalls can guide the molten material toward the center of the gap, preventing it from overflowing.

[0071] By limiting the inclination angle α of the sidewall of the second boss 133 to between 3° and 5°, the sidewall of the second boss 133 can better guide the molten material within this angle range. By setting α to be greater than or equal to 3°, the sidewall of the second boss 133 can have a certain inclination effect, ensuring that the molten material can better flow along the sidewall of the second boss 133. At the same time, by setting α to be less than or equal to 5°, the inclination angle of the sidewall of the second boss 133 within this angle range is not too large, which helps the molten material encounter a certain resistance after climbing a certain height along the sidewall of the second boss 133, preventing the molten material from directly overflowing outside the housing and ensuring stable welding of the first housing 10 and the second housing 30. Similarly, by limiting the inclination angle β of the sidewall of the third boss 135 to between 3° and 5°, the sidewall of the third boss 135 can better guide the molten material within this angle range. By making β greater than or equal to 3°, the side wall of the third boss 135 can have a certain tilt effect, ensuring that the molten material can better flow along the side wall of the third boss 135; at the same time, by making β less than or equal to 5°, within this angle range, the inclination angle of the side wall of the third boss 135 is not too large, which is conducive to making the molten material encounter a certain resistance after climbing a certain height along the side wall of the third boss 135, preventing the molten material from directly overflowing to the outside of the shell, thereby ensuring stable welding processing of the first shell 10 and the second shell 30.

[0072] Specifically, during the ultrasonic welding process, a tapered gap is formed between the inclined sidewalls of the second and third bosses 133, 135, and the limiting boss 37. The molten material, guided by the inclined sidewalls, is evenly distributed along the gap, forming a continuous, dense connecting layer 33 after cooling. During the welding process, the inclination angle provides guidance and restricts material flow, allowing the molten material to preferentially fill the bottom of the gap and then gradually spread upwards. This prevents localized leakage caused by excessive material accumulation, further ensuring a sufficient weld between the first and second shells 10, 30, and improving the structural stability and reliability of the warning light 100.

[0073] In one embodiment of the present invention, the gap width between the side wall of the limiting boss 37 and the inner side wall of the limiting groove 13 a is D, and 0.03 mm ≤ D ≤ 0.15 mm.

[0074] Specifically, during the ultrasonic welding process, the welding structure 31 is heated and melted to form liquid material. The setting of the gap width D between the side wall of the limiting boss 37 and the inner wall of the limiting groove 13a can enable the molten material to diffuse evenly along the gap between the limiting boss 37 and the limiting groove 13a, while avoiding the inability to fully fill the material due to the gap being too small, or the overflow of the material due to the gap being too large.

[0075] Specifically, the gap width D between the side wall of the limiting boss 37 and the inner side wall of the limiting groove 13a can be set between 0.03mm and 0.15mm. By making D greater than or equal to 0.03mm, a certain gap can be provided between the limiting boss 37 and the limiting groove 13a, thereby ensuring that the second shell 30 vibrates relative to the first shell 10 under the high-frequency action of the welding head, so that the welding structure 31 can stably rub against the end face of the enclosure 13 to generate heat and melt, and the molten material can better flow into the gap between the limiting boss 37 and the limiting groove 13a, thereby ensuring the first shell 10 and the second shell 30. Stabilize the welding process; at the same time, make D less than or equal to 0.15mm, and control the gap between the limiting boss 37 and the limiting groove 13a within this range, which can prevent the gap from being too large and causing a certain probability that the molten material cannot evenly cover the gap between the first shell 10 and the second shell 30, so that the first shell 10 and the second shell 30 can achieve a more uniform welding and fixing effect, so that the molten material forms a continuous and dense connecting layer 33 under pressure, covering the contact surface between the side wall of the limiting boss 37 and the inner wall of the limiting groove 13a, further improving the sealing performance and anti-drop and anti-disassembly performance of the warning light 100.

[0076] In some embodiments, the sidewalls of the retaining boss 37 can be designed as vertical planes or slightly inclined surfaces, while the inner sidewalls of the retaining groove 13a form a corresponding matching contact surface. The gap between the two is controlled by precision mold processing. During the welding process, the molten material solidifies within the gap to form a mechanical interlocking structure, enhancing the anti-peeling ability of the connecting layer 33.

[0077] See Figure 10 In one embodiment of the present invention, the end surface of the first shell 10 is provided with a wavy texture 15, the wavy texture 15 is arranged facing the second shell 30, the wavy texture 15 is arranged around the receiving groove 10a, the welding structure 31 is relatively abutted against the wavy texture 15, and the welding structure 31 and the wavy texture 15 can be melt-connected to form a connecting layer 33; and / or, the second shell 30 is provided with a light-transmitting portion 39, and the light-transmitting portion 39 is configured to be able to transmit light emitted by the light-emitting element of the circuit component 50.

[0078] In this embodiment, the wavy texture 15 can refer to a surface morphology with a continuous undulating structure. Specifically, periodic concave and convex stripes can be formed on the end surface of the shell by mechanical processing or mold forming. This structure promotes uniform filling of the welding material by increasing the contact area and the flow path of the molten material. Specifically, during the ultrasonic welding process, the welding structure 31 contacts the concave and convex areas of the wavy texture 15. When heated and melted, the molten material diffuses along the grooves of the wavy texture 15, forming a continuous and dense connecting layer 33. The undulating structure of the wavy texture 15 guides the molten material to extend and fill to both sides, preventing localized accumulation or overflow of the material. At the same time, the molten material is allowed to cool and solidify on the wavy texture 15, and the connecting layer 33 formed between the first shell 10 and the second shell 30 can also be a mutually meshing tooth-like structure, which is conducive to better achieving the welding interlocking effect of the first shell 10 and the second shell 30, effectively preventing the connecting layer 33 from falling off and failing, and achieving a more stable and reliable welding process for the warning light 100, further improving the sealing performance and anti-drop and anti-disassembly performance of the warning light 100.

[0079] The light-transmitting portion 39 refers to the area of the housing that allows light to pass through. Specifically, it can be injection-molded from a transparent or translucent material, or a light-transmitting window can be formed by locally thinning the housing. This structure optimizes the light transmission path and ensures the visibility of the warning light 100's light effect. Specifically, the light-transmitting portion 39 is positioned to correspond to the light-emitting elements of the circuit assembly 50. When light is projected outward through the light-transmitting portion 39, its material properties and thickness distribution reduce light loss while maintaining the overall structural strength of the housing, further enhancing the structural stability and reliability of the warning light 100.

[0080] In some embodiments, the second shell 30 can have some reinforcing ribs 35 arranged near the light-transmitting portion 39 so that the reinforcing ribs 35 can support the light-transmitting portion 39 with a relatively weak structure, better prevent the light-transmitting portion 39 from breaking, and further improve the structural stability and reliability of the warning light 100.

[0081] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A warning light, characterized in that: include: a first shell, wherein the first shell is provided with a receiving groove; a second shell, the second shell being stacked and connected to the first shell, the second shell being capable of covering the receiving groove, a welding structure being provided around an edge of a surface of the second shell facing the first shell, the welding structure being configured to melt during ultrasonic welding to form a connecting layer connecting the first shell and the second shell; as well as a circuit assembly, the circuit assembly being installed in the receiving slot; A reinforcing rib is provided on a surface of the second shell facing the first shell. The reinforcing rib includes an abutting portion. The abutting portion is arranged away from the second shell and abuts against the circuit assembly.

2. The warning light according to claim 1, wherein: The reinforcing ribs include: a connecting body connected to a side of the second shell facing the first shell, and having a connecting hole provided at one end of the connecting body facing the first shell; a support member, the support member being movably inserted into the connection hole, wherein an end of the support member facing away from the connection body is formed as the abutment portion; An elastic member is disposed in the connecting hole and connects the supporting member and the connecting body.

3. The warning light according to claim 1, wherein: The material of the abutting portion is elastic material; And / or, the melting point of the abutting portion is greater than the melting point of the welding structure.

4. The warning light according to claim 1, wherein: The first shell includes a panel and a surrounding plate, wherein the surrounding plate is connected to the panel and encloses the panel to form the receiving groove; A limiting groove is provided on the end face of the enclosure, and the limiting groove is arranged facing away from the panel. A limiting boss is provided on the end face of the second shell, and the limiting boss is arranged facing the first shell. The limiting boss is inserted into the limiting groove. The welding structure is provided on the end face of the limiting boss, and the welding structure can be melted to form a connecting layer connecting the limiting boss and the inner wall of the limiting groove.

5. The warning light according to claim 4, characterized in that: The end surface of the enclosure is provided with a first boss, the first boss is arranged to face away from the panel, the first boss is arranged around the receiving groove, the first boss has an outer wall and an inner wall opposite to each other, the inner wall is spaced apart from the limiting boss, and the inner wall and the end surface of the enclosure form the limiting groove; The thickness of the enclosure along the first direction is W, the thickness of the first boss along the first direction is W1, and the height of the first boss along the second direction is H, 1.2mm≤W≤4mm, W1=W / 3, H=W / 3.

6. The warning light according to claim 4, wherein: The end surface of the enclosure is provided with a second boss and a third boss that are spaced apart from each other, the second boss and the third boss are arranged to face away from the panel, the second boss and the third boss are both arranged around the receiving groove, the second boss, the third boss and the end surface of the enclosure form the limiting groove, and opposite sides of the limiting boss are spaced apart from the second boss and the third boss respectively; The thickness of the enclosure along the first direction is W, and the distance between the second boss and the third boss along the first direction is W2, 1.2mm≤W≤4mm, W2=W / 3.

7. The warning light according to claim 6, wherein: The second boss is arranged obliquely toward the side wall of the third boss, and the third boss is arranged obliquely toward the side wall of the second boss; The opposite sides of the limiting boss are respectively parallel to the side walls of the second boss and the side walls of the third boss.

8. The warning light according to claim 7, wherein: In the second direction, the inclination angle of the side wall of the second boss is α, the inclination angle of the side wall of the third boss is β, and 3°≤α≤5°, 3°≤β≤5°.

9. The warning light according to claim 4, wherein: The gap width between the side wall of the limiting boss and the inner side wall of the limiting groove is D, 0.03mm≤D≤0.15mm.

10. The warning light according to claim 1, wherein: The end surface of the first shell is provided with a wavy texture, the wavy texture is arranged facing the second shell, the wavy texture is arranged around the receiving groove, the welding structure is in relative contact with the wavy texture, and the welding structure and the wavy texture can be melt-connected to form a connection layer; And / or, the second housing is provided with a light-transmitting portion, and the light-transmitting portion is configured to transmit light emitted by the light-emitting element of the circuit assembly.

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