Intrinsic safety type signal lamp

Abstract

The utility model relates to the technical field of lamps, in particular to an intrinsic safety type signal lamp, which is characterized in that one end of an upper cover is embedded into a shell, and the upper cover is connected with the shell through ultrasonic welding; keys are arranged on the outer side of the upper cover, and the keys and the upper cover are integrally formed through injection molding; a sealing ring is arranged between the upper cover and the shell; an electric appliance cavity is arranged in the shell, a circuit board and a lithium battery are arranged on the electric appliance cavity, and the electric appliance cavity adopts a circuit board and lithium battery compartment structure design and is packaged by full glue pouring. Compared with the prior art, the intrinsic safety type signal lamp provided by the utility model has better protection reliability, can better maintain normal work in a severe environment, and can effectively reduce potential safety hazards.

Description

[Technical field]

[0001] The utility model relates to the technical field of lamps, in particular to an intrinsically safe signal lamp. [Background technology]

[0002] Intrinsically safe signal lights are a type of intrinsically safe equipment. They are suitable for use in flammable and explosive places and special places such as fire fighting, public security, traffic police, petrochemicals, oil fields, coal mines, and various construction, emergency, and rescue workers as warning signs, direction indications, and signal communications.

[0003] Since the use environment of intrinsically safe signal lights is generally relatively harsh, intrinsically safe signal lights in the prior art often malfunction due to insufficient protection performance, affecting normal use and posing a safety hazard. [Utility Model Content]

[0004] In order to overcome the above problems, the utility model provides an intrinsically safe signal light which can effectively solve the above problems.

[0005] The utility model provides a technical solution to solve the above technical problems: to provide an intrinsically safe signal light, including a shell and an upper cover, one end of the upper cover is embedded in the shell, and the upper cover and the shell are connected by ultrasonic welding; a button is arranged on the outer side of the upper cover, and the button and the upper cover are integrally formed by injection molding; a sealing ring is arranged between the upper cover and the shell; an electrical cavity is arranged in the shell, a circuit board and a lithium battery are arranged on the electrical cavity, and the electrical cavity adopts a circuit board and lithium battery compartment structure design, and is fully encapsulated with glue.

[0006] Preferably, a charging contact is provided at the bottom of the shell, and the charging contact is connected to the circuit board.

[0007] Preferably, a keypad is provided at the upper end of the electrical cavity, the keypad is clamped to the upper end of the electrical cavity via a clamping plate, the keypad is connected to a circuit board, and the position of the key corresponds to the position of the keypad.

[0008] Preferably, an opening is provided at the upper end of the shell, a circle of inlay grooves is provided around the opening, a circle of first bosses is provided at the bottom of the upper cover, a circle of second bosses is provided around the first bosses, the first bosses are embedded in the opening, and the second bosses are embedded in the inlay grooves.

[0009] Preferably, a sealing groove is formed between the first boss and the second boss, and the sealing ring is clamped in the sealing groove.

[0010] Preferably, a charging positioning groove is provided at the bottom of the shell, a contact hole is provided in the charging positioning groove, and the charging contact is provided in the contact hole.

[0011] Preferably, a circle of sealing steps is arranged around the contact hole, a sealing card platform is arranged at one end of the charging contact, the sealing card platform is supported on the sealing step, and waterproof glue is applied between the sealing card platform and the sealing step.

[0012] Preferably, a key through hole is opened in the middle of the upper cover, a key core is arranged at the bottom of the key, and the key core passes through the key through hole.

[0013] Preferably, a circle of waterproof grooves is arranged around the button through hole, and a circle of waterproof steps matching the waterproof grooves is arranged at the bottom of the button, and the waterproof steps are inserted into the waterproof grooves.

[0014] Preferably, a first cavity is provided on one side of the electrical cavity, and a second cavity is provided on the other side of the electrical cavity. The first cavity 31 and the second cavity are isolated from each other. The lithium battery is provided in the first cavity, and the circuit board is provided in the second cavity.

[0015] Compared with the prior art, the intrinsically safe signal light of the utility model has better protection reliability, can better maintain normal operation in harsh environments, and can effectively reduce safety hazards.

Brief Description of the Drawings

[0016] Figure 1 It is a first stereogram of the intrinsically safe signal light of the utility model;

[0017] Figure 2 It is a second stereoscopic view of the intrinsically safe signal light of the utility model;

[0018] Figure 3 This is an exploded view of the intrinsically safe signal light of the utility model;

[0019] Figure 4 It is a first stereoscopic view of the housing of the intrinsically safe signal lamp of the utility model;

[0020] Figure 5 It is a second stereoscopic view of the housing of the intrinsically safe signal lamp of the utility model;

[0021] Figure 6 It is a first stereoscopic view of the upper cover of the intrinsically safe signal light of the utility model;

[0022] Figure 7 It is a second stereoscopic view of the upper cover of the intrinsically safe signal light of the utility model;

[0023] Figure 8 It is a three-dimensional diagram of the buttons of the intrinsically safe signal light of the utility model;

[0024] Fig. 9 It is a first stereoscopic view of the electrical cavity of the intrinsically safe signal lamp of the utility model;

[0025] Fig.10 It is a second stereoscopic view of the electrical cavity of the intrinsically safe signal lamp of the utility model;

[0026] Fig.11 A three-dimensional diagram of a clip of an intrinsically safe signal light of the utility model;

[0027] Fig.12 It is a three-dimensional diagram of the charging contacts of the intrinsically safe signal light of the present utility model. [Specific implementation method]

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are limited to relative positions on the specified view rather than absolute positions.

[0030] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] See also Figures 1 to 12 The intrinsically safe signal lamp of the utility model comprises a housing 10 and an upper cover 20, one end of the upper cover 20 is embedded in the housing 10, and the upper cover 20 and the housing 10 are connected and fixed by ultrasonic welding.

[0032] A button 60 is disposed on the outer side of the upper cover 20 , and the button 60 and the upper cover 20 are integrally formed by injection molding.

[0033] The button 60 and the upper cover 20 are integrally formed by an advanced double-material injection molding process, and the upper cover 20 and the housing 10 are assembled by ultrasonic welding technology. The protection reliability performance of the combined structure is better than that of similar products, and the protection level can reach IP68.

[0034] A sealing ring 70 is disposed between the upper cover 20 and the housing 10 to facilitate waterproofing.

[0035] An electrical cavity 30 is disposed in the housing 10 , and a circuit board and a lithium battery are disposed on the electrical cavity 30 . The electrical cavity 30 adopts a circuit board and lithium battery compartment structure design and is formed by a full-glue encapsulation process to meet the highest intrinsic safety level requirements, ensuring that users can use it with confidence in any dangerous place.

[0036] A clip 50 is disposed on the outer side of the housing 10 for easy carrying.

[0037] A charging contact 80 is disposed at the bottom of the housing 10 , and the charging contact 80 is connected to the circuit board for contact charging.

[0038] The charging contact 80 is sleeved on the metal spring 81, and the metal spring 81 is connected to the circuit board to achieve conduction between the charging contact 80 and the circuit board.

[0039] A circle of light-transmitting film 40 is disposed on the inner side of the housing 10 , and the light-transmitting film 40 surrounds the outer side of the electrical cavity 30 , so as to achieve a more uniform lighting effect.

[0040] A keypad is disposed at the upper end of the electrical cavity 30 , and the keypad is clamped to the upper end of the electrical cavity 30 via a clamping plate 90 . The keypad is connected to the circuit board, which is convenient for disassembly and assembly and maintenance. The position of the key 60 corresponds to that of the keypad.

[0041] The housing 10 is of one-piece design and is made of bulletproof flame-retardant PC (polycarbonate) material, having the advantages of high mechanical strength, good toughness, extremely high impact resistance, good heat resistance, and high transparency (light transmittance of more than 90%).

[0042] The shell 10 is provided with an opening 11 at the upper end, and a circle of inlay grooves 12 are provided around the opening 11. The bottom of the upper cover 20 is provided with a circle of first bosses 21, and a circle of second bosses 22 are provided around the first bosses 21. The first bosses 21 are embedded in the opening 11, and the second bosses 22 are embedded in the inlay grooves 12. They are then connected and fixed by ultrasonic welding, which is beneficial to improving the protection reliability.

[0043] A sealing groove 23 is formed between the first boss 21 and the second boss 22 , and the sealing ring 70 is stuck in the sealing groove 23 .

[0044] A charging positioning groove 13 is formed at the bottom of the housing 10 . A contact hole 14 is formed in the charging positioning groove 13 . The charging contact 80 is disposed in the contact hole 14 .

[0045] A circle of sealing steps 15 is arranged around the contact hole 14, and a sealing card platform 82 is arranged at one end of the charging contact 80. The sealing card platform 82 is supported on the sealing step 15, and waterproof glue is applied between the sealing card platform 82 and the sealing step 15 to improve the waterproof performance.

[0046] A clip connection platform 16 is disposed on the outer side of the housing 10 , and the clip 50 is connected to the clip connection platform 16 .

[0047] A key through hole 24 is opened in the middle of the upper cover 20 , and a key core 61 is arranged at the bottom of the key 60 . The key core 61 passes through the key through hole 24 and contacts the button on the key board by being pressed.

[0048] A circle of waterproof grooves 25 are arranged around the button through hole 24 , and a circle of waterproof steps 62 matching the waterproof grooves 25 are arranged at the bottom of the button 60 . The waterproof steps 62 are inserted into the waterproof grooves 25 .

[0049] The button 60 is made of silicone rubber. The upper cover is made of ABS material.

[0050] A first cavity 31 is disposed on one side of the electrical cavity 30 , and a second cavity 32 is disposed on the other side of the electrical cavity 30 . The first cavity 31 and the second cavity 32 are isolated from each other. The lithium battery is disposed in the first cavity 31 , and the circuit board is disposed in the second cavity 32 .

[0051] A third cavity 33 is disposed at the upper end of the electrical cavity 30 , and the keypad is disposed in the third cavity 33 .

[0052] A clamping groove 331 is provided inside the third cavity 33 , and the clamping plate 90 is clamped on the clamping groove 331 , so as to firmly clamp the key board.

[0053] The third cavity 33 is provided with a connection port 332 on its side, and the connection port 332 is used to connect the first cavity 31 and the second cavity 32 , so as to facilitate connecting the lithium battery and the circuit board through a wire.

[0054] The clamp 50 is provided with a rotating shaft 51 , which is connected to the clamp connecting platform 16 . A torsion spring is provided on the rotating shaft 51 to provide a clamping force.

[0055] A magnetic groove 52 is provided on the inner side of the clip 50 , and a magnet 53 is fixed in the magnetic groove 52 . The magnet 53 is used for magnetically installing the signal light, providing more diverse installation methods to meet more usage scenarios and improve applicability.

[0056] The clip 50 is provided with a lanyard hole 54 for tying a lanyard, providing the user with a variety of carrying methods such as hanging, clipping, bundling and magnetic adsorption, which is easy and convenient.

[0057] The end of the clip 50 is provided with a barb 55 to facilitate more stable clamping, and the outer side of the housing 10 is provided with a barb groove 17 matching the barb 55 .

[0058] The lithium battery adopts lithium iron phosphate battery and wireless contact charging method. Compared with similar products using dry batteries, it saves users the trouble of replacing batteries and saves customers a lot of dry battery usage costs every year.

[0059] The circuit board is provided with an LED chip, which adopts a CREE high-efficiency LED chip, is visible to the naked eye within a range of 3 miles, and has the ability to penetrate water, rain and fog up to 500 meters.

[0060] The housing 10 is cylindrical and can achieve a wider range of light diffusion with a circle of light-transmitting film 40. The housing 10 has a height of 75-78 mm and an outer diameter of 30 mm.

[0061] The circuit board is provided with a BLE low-power Bluetooth module, which starts full-power brightness immediately upon receiving a signal.

[0062] Compared with the prior art, the intrinsically safe signal light of the utility model has better protection reliability, can better maintain normal operation in harsh environments, and can effectively reduce safety hazards.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any modifications, equivalent substitutions and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.

Claims

1. Intrinsically safe signal lights, characterized by: It comprises a shell and an upper cover, one end of the upper cover is embedded in the shell, and the upper cover and the shell are connected by ultrasonic welding; A button is arranged on the outer side of the upper cover, and the button and the upper cover are integrally formed by injection molding; A sealing ring is provided between the upper cover and the shell; An electrical cavity is arranged in the shell, a circuit board and a lithium battery are arranged on the electrical cavity, the electrical cavity adopts a circuit board and a lithium battery compartment structure design, and is fully encapsulated with glue.

2. The intrinsically safe signal lamp according to claim 1, characterized in that: The bottom of the shell is provided with charging contacts, and the charging contacts are connected to the circuit board.

3. The intrinsically safe signal lamp according to claim 1, characterized in that: A keypad is disposed at the upper end of the electrical cavity. The keypad is clamped at the upper end of the electrical cavity via a clamping plate. The keypad is connected to a circuit board. The position of the key corresponds to that of the keypad.

4. The intrinsically safe signal lamp according to claim 1, characterized in that: The upper end of the shell is provided with an opening, the periphery of the opening is provided with a circle of inlay grooves, the bottom of the upper cover is provided with a circle of first bosses, the periphery of the first bosses is provided with a circle of second bosses, the first bosses are embedded in the opening, and the second bosses are embedded in the inlay grooves.

5. The intrinsically safe signal lamp according to claim 4, characterized in that: A sealing groove is formed between the first boss and the second boss, and the sealing ring is clamped in the sealing groove.

6. The intrinsically safe signal lamp according to claim 2, characterized in that: A charging positioning groove is provided at the bottom of the shell, a contact hole is provided in the charging positioning groove, and the charging contact is provided in the contact hole.

7. The intrinsically safe signal lamp according to claim 6, characterized in that: A circle of sealing steps is arranged around the contact hole, a sealing card platform is arranged at one end of the charging contact, the sealing card platform is supported on the sealing step, and waterproof glue is applied between the sealing card platform and the sealing step.

8. The intrinsically safe signal lamp according to claim 1, characterized in that: A key through hole is opened in the middle of the upper cover, a key core is arranged at the bottom of the key, and the key core passes through the key through hole.

9. The intrinsically safe signal lamp according to claim 8, characterized in that: A circle of waterproof grooves is arranged around the button through hole, and a circle of waterproof steps matching the waterproof grooves is arranged at the bottom of the button, and the waterproof steps are inserted into the waterproof grooves.

10. The intrinsically safe signal lamp according to claim 1, characterized in that: A first cavity is disposed on one side of the electrical cavity, and a second cavity is disposed on the other side of the electrical cavity. The first cavity and the second cavity are isolated from each other. The lithium battery is disposed in the first cavity, and the circuit board is disposed in the second cavity.

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