An electronic device power adapter with overload protection

Abstract

The utility model belongs to power adapter technical field, specifically disclose a kind of electronic equipment power adapter with overload protection, including shell, limiting component, assembly component and protection component, the inside center of shell is longitudinally equipped with circuit module, this circuit module surface integration has NTC thermistor, can cut off current and protect when accessory overheating, the limiting component is respectively installed between circuit module and shell upper and lower two places.This electronic equipment power adapter with overload protection installs circuit module between the upper and lower sleeve plate of shell inside, along the transverse insertion of the slot of sleeve plate two sides Inserting rod and shielding, prevent the compression rod articulated in front of sleeve plate, avoid the upper and lower two places of circuit module from sleeve plate, the sleeve ring will be sleeved in the outside of guide rod at this time, both prevent circuit module and shell inner wall from colliding, and the disassembly and installation of this thing are convenient, solve the problem of inconvenient disassembly and installation of internal module.

Description

Technical Field

[0001] This utility model relates to the field of power adapter technology, specifically to a power adapter for electronic devices with overload protection. Background Technology

[0002] A power adapter, also known as a charger, converts 220V AC power into low-voltage DC power for use by electronic devices. The internal circuit modules are protected by a casing, and the wiring harnesses on both sides are plugged into a wall socket on one side and into the electronic device on the other.

[0003] If an overload occurs, it is detected by an NTC thermistor on the circuit module to prevent the temperature inside the adapter from getting too high and burning out the components. However, such power adapters often use screws to mount circuit boards with screw holes, which are quite inconvenient to disassemble and clean.

[0004] Now, a novel power adapter for electronic devices with overload protection is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a power adapter for electronic devices with overload protection, so as to solve the problem of inconvenient disassembly and installation of internal modules mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electronic device power adapter with overload protection, comprising a housing, limiting components, assembly components, and protective components. A circuit module is longitudinally mounted at the center of the housing. An NTC thermistor is integrated on the surface of the circuit module to cut off current and provide protection when the component overheats. The limiting components are respectively installed at two locations, one above and one below the circuit module and the housing. A left wiring harness is provided on the left side of the housing exterior, with a left plug fixed to its end. A right wiring harness is provided on the right side of the housing exterior, with a right plug fixed to its end. The assembly components are respectively mounted on the left and right wiring harnesses and connected to the circuit module inside the housing. The protective components are symmetrically installed on the inner walls of the front and rear ends of the housing.

[0007] As a further technical solution of this utility model, the limiting component includes a sleeve plate, and a pressure rod is movably hinged between the left and right sides inside the front end of the sleeve plate. Slots are respectively arranged laterally on both sides of the front end of the sleeve plate, and a plug rod is movably inserted into the slot. A collar is fixed at each of the four corners inside the circuit module, and a guide rod is fixed at each of the four corners at the rear of the outer shell.

[0008] As a further technical solution of this utility model, the insertion rod is symmetrically attached to both sides of the front end of the pressure rod, and the guide rods are all embedded inside the collar.

[0009] As a further technical solution of this utility model, the assembly component includes a through groove, and the through groove is respectively disposed at the center of both sides of the outer shell. The through groove is fixed with a plug-in block, and a protective sleeve is fixed on the outside of the plug-in block. The sides of the right wire harness and the left wire harness are respectively fixedly connected to the protective sleeve. Slides are respectively provided at the top and bottom of both sides of the outer shell, and a positioning block is movably connected in the slide. A sleeve is fixed on the side of the positioning block, and a silicone ring is fixed on the inner wall of the sleeve. The two sides of the circuit module are respectively fixed with mounting grooves.

[0010] As a further technical solution of this utility model, the sleeve is fitted with a silicone ring at the upper and lower parts of the outside of the insert block, the positioning block moves longitudinally along the inner wall of the slide, and the insert block is embedded in the mounting groove.

[0011] As a further technical solution of this utility model, the protective component includes a frame, and two sets of frames are symmetrically fixed on the front and rear inner walls of the outer shell. A thin film is fixed on the surface of the frame, and a cavity is provided in the frame, which is filled with fire extinguishing dry powder.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this electronic device power adapter with overload protection not only facilitates the installation and disassembly of the circuit board and protects the wiring harness connection, but also achieves fire and explosion protection;

[0013] (1) By installing the limiting components at the upper and lower positions between the circuit module and the outer shell, the circuit module is installed between the upper and lower sleeve plates inside the outer shell. The plug rod is inserted horizontally along the slots on both sides of the sleeve plate to block the pressure rod hinged in front of the sleeve plate, and to prevent the upper and lower positions of the circuit module from detaching from the sleeve plate. At this time, the collar will be sleeved on the outside of the guide rod, which not only prevents the circuit module from colliding with the inner wall of the outer shell, but also facilitates the disassembly and installation of this item.

[0014] (2) By fixing the plug-in block in the through slot, insert the plug-in block connected to the left and right wire harnesses through the protective sleeve into the mounting slot, thereby connecting the left plug and the right plug to the circuit module through the left and right wire harnesses. Then, move the positioning block along the slide on the surface of the housing to force the sleeve with the silicone ring to close and clamp the plug-in block to prevent it from coming out of the through slot. Then, screw the bolt into the positioning block for reinforcement to prevent the sleeve from opening.

[0015] (3) By including the frame in the protective component, the frame is installed at the rear of the outer shell and the front panel. The cavity inside is filled with fire extinguishing dry powder made of sodium bicarbonate. If the outer shell spontaneously combusts or the temperature is too high and an overload occurs, the film on the surface will melt, causing the fire extinguishing dry powder inside to spray out and wrap around the circuit module, preventing the fire from spreading and preventing the adapter from exploding, thus ensuring the safety of the user. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a front view cross-sectional structural diagram of the limiting component of this utility model;

[0018] Figure 3 For the present utility model Figure 1 Enlarged cross-sectional view of a portion of point A in the middle section;

[0019] Figure 4 This is a side view sectional structural diagram of the fire extinguishing component of this utility model.

[0020] In the diagram: 1. Housing; 2. Limiting assembly; 3. Assembly assembly; 4. Left wiring harness; 5. Left plug; 6. Circuit module; 7. Right wiring harness; 8. Right plug; 9. Protective assembly;

[0021] 201. Sleeve; 202. Pressure rod; 203. Slot; 204. Insert rod; 205. Collar; 206. Guide rod;

[0022] 301. Mounting slot; 302. Insert block; 303. Through slot; 304. Slide rail; 305. Positioning block; 306. Sleeve; 307. Protective sleeve; 308. Silicone ring;

[0023] 901. Frame; 902. Fire extinguishing dry powder; 903. Membrane; 904. Cavity. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4This utility model provides an embodiment of an electronic device power adapter with overload protection, comprising a housing 1, a limiting component 2, an assembly component 3, and a protective component 9. A circuit module 6 is longitudinally mounted at the center of the interior of the housing 1. The surface of the circuit module 6 integrates an NTC thermistor, which can cut off the current and provide protection when the accessory overheats. The limiting component 2 is respectively installed at the upper and lower positions between the circuit module 6 and the housing 1. A left wiring harness 4 is provided on the left side of the exterior of the housing 1, and a left plug 5 is fixed at the end of the left wiring harness 4. A right wiring harness 7 is provided on the right side of the exterior of the housing 1, and a right plug 8 is fixed at the end of the right wiring harness 7. The assembly component 3 is respectively installed on the left wiring harness 4 and the right wiring harness 7 and connected to the circuit module 6 inside the housing 1. The protective component 9 is symmetrically installed on the inner walls of the front and rear ends of the housing 1.

[0026] The limiting component 2 includes a sleeve plate 201, and a pressure rod 202 is movably hinged between the left and right sides inside the front end of the sleeve plate 201. Slots 203 are provided laterally on both sides of the front end of the sleeve plate 201, and a plug rod 204 is movably inserted into the slot 203. A collar 205 is fixed at each of the four corners inside the circuit module 6. A guide rod 206 is fixed at each of the four corners at the rear of the outer shell 1. The plug rod 204 is symmetrically attached to both sides of the front end of the pressure rod 202, and the guide rods 206 are all embedded inside the collar 205.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, the circuit module 6 is installed between the upper and lower sleeve plates 201 inside the housing 1. The insert rod 204 is inserted horizontally along the slots 203 on both sides of the sleeve plate 201 to block the pressure rod 202 hinged in front of the sleeve plate 201, thus preventing the upper and lower parts of the circuit module 6 from detaching from the sleeve plate 201. At this time, the collar 205 will be sleeved on the outside of the guide rod 206 for limiting.

[0028] Assembly component 3 includes through slots 303, which are respectively located at the center of both sides of housing 1. Insertion blocks 302 are fixedly connected in the through slots 303, and protective sleeves 307 are fixedly fixed on the outer side of the insertion blocks 302. The sides of the right wire harness 7 and the left wire harness 4 are respectively fixedly connected to the protective sleeves 307. Slides 304 are respectively provided at the top and bottom of both sides of housing 1, and positioning blocks 305 are movably connected in the slides 304. A retaining sleeve 306 is fixed on the side of the positioning block 305, and a silicone ring 308 is fixed on the inner wall of the retaining sleeve 306. Mounting slots 301 are fixed on both sides of the circuit module 6. The retaining sleeve 306 is sleeved on the top and bottom of the insertion block 302 with the silicone ring 308. The positioning block 305 moves longitudinally along the inner wall of the slide 304, and the insertion block 302 is embedded in the mounting slot 301.

[0029] Specifically, such as Figure 1 and Figure 3As shown, the plug 302 connected to the left wire harness 4 and the right wire harness 7 through the protective sleeve 307 is inserted into the mounting slot 301, thereby connecting the left plug 5 and the right plug 8 to the circuit module 6 through the left wire harness 4 and the right wire harness 7. Then, the positioning block 305 is moved along the slide 304 on the surface of the housing 1, forcing the sleeve 306 with the silicone ring 308 to close and clamp the plug 302, preventing it from falling out of the through slot 303. Then, a bolt is screwed into the positioning block 305 for reinforcement.

[0030] The protective component 9 includes a frame 901, and two sets of frames 901 are symmetrically fixed on the front and rear inner walls of the outer shell 1. A thin film 903 is fixed on the surface of the frame 901, and a cavity 904 is provided in the frame 901, which is filled with fire extinguishing dry powder 902.

[0031] Specifically, such as Figure 1 and Figure 4 As shown, a frame 901 is installed at the rear of the interior of the outer casing 1, which is connected to the front panel. The cavity 904 inside this cavity contains fire extinguishing dry powder 902 made of sodium bicarbonate. If the interior of the outer casing 1 spontaneously combusts or the temperature becomes too high and an overload occurs, the thin film 903 on the surface will melt, causing the fire extinguishing dry powder 902 inside to spray out and wrap around the circuit module 6, preventing the fire from spreading and preventing the adapter from exploding.

[0032] Working principle: In use, the circuit module 6 is first installed between the upper and lower sleeves 201 inside the outer casing 1. The insert rod 204 is then inserted laterally along the slots 203 on both sides of the sleeve 201 to block the pressure rod 202 hinged at the front of the sleeve 201, preventing the circuit module 6 from detaching from the upper and lower parts of the sleeve 201. At this time, the collar 205 is fitted onto the outside of the guide rod 206 to prevent the circuit module 6 from colliding with the inner wall of the outer casing 1. Then, the left wiring harness 4 and the right wiring harness 7 are inserted into the mounting slot 301 via the plug 302 connected by the protective sleeve 307, thereby connecting the left plug 5 and the right plug 8 to the circuit via the left wiring harness 4 and the right wiring harness 7. Module 6, then along the slide 304 on the surface of the outer shell 1, moves the positioning block 305, forcing the sleeve 306 with the silicone ring 308 to close and clamp the insert 302, preventing it from dislodging from the through slot 303. Then, a bolt is screwed into the positioning block 305 for reinforcement to prevent the sleeve 306 from opening. The rear of the inner shell 1 is connected to the front plate with a frame 901. The cavity 904 inside this is filled with fire extinguishing dry powder 902 made of sodium bicarbonate. If the inner shell 1 spontaneously combusts or the temperature is too high and an overload occurs, the thin film 903 on the surface will melt, causing the fire extinguishing dry powder 902 inside to spray out and wrap around the circuit module 6, preventing the fire from spreading and preventing the adapter from exploding.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A power adapter for electronic devices with overload protection, comprising a housing (1), a limiting component (2), an assembly component (3), and a protective component (9), characterized in that: A circuit module (6) is longitudinally mounted at the center of the interior of the outer shell (1). The surface of the circuit module (6) is integrated with an NTC thermistor, which can cut off the current and protect the accessory when it is overheated. The limiting component (2) is installed at the upper and lower positions between the circuit module (6) and the outer shell (1). A left wire harness (4) is provided on the left side of the outer shell (1), and a left plug (5) is fixed at the end of the left wire harness (4). A right wire harness (7) is provided on the right side of the outer shell (1), and a right plug (8) is fixed at the end of the right wire harness (7). The assembly component (3) is installed on the left wire harness (4) and the right wire harness (7) respectively, and is connected to the circuit module (6) inside the outer shell (1). The protective components (9) are symmetrically installed on the inner walls of the front and rear ends of the outer shell (1).

2. The power adapter for electronic devices with overload protection according to claim 1, characterized in that: The limiting component (2) includes a sleeve (201), and a pressure rod (202) is movably hinged between the left and right sides inside the front end of the sleeve (201). Slots (203) are respectively arranged horizontally on both sides of the front end of the sleeve (201), and a plug rod (204) is movably inserted into the slot (203). A collar (205) is fixed at each of the four corners inside the circuit module (6), and a guide rod (206) is fixed at each of the four corners inside the rear of the outer shell (1).

3. A power adapter for electronic devices with overload protection according to claim 2, characterized in that: The insert rods (204) are symmetrically attached to both sides of the front end of the pressure rod (202), and the guide rods (206) are all embedded inside the collar (205).

4. A power adapter for electronic devices with overload protection according to claim 1, characterized in that: The assembly component (3) includes a through groove (303), and the through groove (303) is respectively located at the center of both sides of the outer shell (1). The through groove (303) is fixed with a plug-in block (302), and a protective sleeve (307) is fixed on the outside of the plug-in block (302). The sides of the right wire harness (7) and the left wire harness (4) are respectively fixedly connected to the protective sleeve (307). The upper and lower parts of both sides of the outer shell (1) are respectively provided with slide rails (304), and a positioning block (305) is movably connected in the slide rail (304). A retainer (306) is fixed on the side of the positioning block (305), and a silicone ring (308) is fixed on the inner wall of the retainer (306). The two sides of the circuit module (6) are respectively fixed with mounting grooves (301).

5. A power adapter for electronic devices with overload protection according to claim 4, characterized in that: The sleeve (306) is fitted with a silicone ring (308) at the upper and lower parts of the outside of the insert (302), the positioning block (305) moves longitudinally along the inner wall of the slide (304), and the insert (302) is embedded in the mounting groove (301).

6. A power adapter for electronic devices with overload protection according to claim 1, characterized in that: The protective component (9) includes a frame (901), and two sets of frames (901) are symmetrically fixed on the front and rear inner walls of the outer shell (1). A thin film (903) is fixed on the surface of the frame (901), and a cavity (904) is provided in the frame (901), and the cavity (904) is filled with fire extinguishing dry powder (902).

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