PD power supply with plug protection function

Abstract

The utility model provides a PD power supply with a plug protection function, which comprises a shell, a plug is fixedly connected below the shell, one side of the shell is in sliding connection with a first sliding rod, one end of the first sliding rod is fixedly connected with a lower push plate and a first clamping plate, one side of the shell is in sliding connection with a first thermosensitive sheet, one side of the shell is fixedly connected with a first spring and a second spring, and the first spring and the second spring are fixedly connected with the shell. One end of the first spring is fixedly connected to the first clamping plate, one end of the second spring is fixedly connected to the first thermosensitive piece, one end of the first clamping plate is fixedly connected with a positioning boss, a main circuit board is fixedly connected to the interior of the shell, an interface circuit board is fixedly connected to the upper portion of the main circuit board, a plug is fixedly connected to the lower portion of the main circuit board, and a first interface and a second interface are formed in the upper portion of the interface circuit board. When short-circuit overheating happens to the plug and the socket, a first thermosensitive piece is deformed and bent and does not limit a first clamping plate any more, at the moment, the first clamping plate is pushed out by a first spring, the device is pushed away from the socket through a lower push plate, physical separation of the device and the socket is achieved, and meltdown and fire disasters are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of PD power supplies, in particular to a PD power supply with a plug protection function. Background Art

[0002] PD refers to the Power Delivery fast charging standard, which is a type of power supply component that can quickly charge electronic devices. It supports the fast charging protocol and can transmit current and voltage at higher power through the USB-C interface, allowing devices to charge faster. Compared with other charging protocols, PD has higher power output, can support more types of devices, and can manage power distribution more intelligently. However, during charging, the power supply and charging equipment will generate a lot of heat due to the large current of fast charging. If the charging socket or the electronic device connected to the power supply fails, the power supply will overheat and melt or even cause a fire.

[0003] After searching, the Chinese patent publication number CN218849942U discloses a power plug with a protective function, including a plug, a mounting seat is sleeved on the end of the plug, the mounting seat is hinged with a protective cover, the protective cover can cover the end face of the plug, the mounting seat is connected with a swingable buckle, and the buckle is clamped with the protective cover.

[0004] In view of the problem that the above technology can protect the plug from water and dust intrusion, it cannot disconnect the connection urgently when the power supply is short-circuited and overheated; therefore, a PD power supply with plug protection function is proposed. Utility Model Content

[0005] In view of this, the embodiments of the present invention hope to provide a PD power supply with a plug protection function to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the embodiment of the utility model is implemented as follows: it includes a shell, a plug is fixedly connected to the bottom of the shell, a slide rod is slidably connected to one side of the shell, a push-down plate and a card plate are fixedly connected to one end of the slide rod, and a thermal sheet is slidably connected to one side of the shell.

[0007] In some embodiments, spring 1 and spring 2 are fixedly connected to one side of the shell, one end of spring 1 is fixedly connected to card plate 1, and one end of spring 2 is fixedly connected to thermal sheet 1.

[0008] In some embodiments, one end of the clamping plate is fixedly connected to a positioning boss.

[0009] In some embodiments, a main circuit board is fixedly connected inside the shell, an interface circuit board is fixedly connected above the main circuit board, a plug is fixedly connected below the main circuit board, and interface one and interface two are opened above the interface circuit board.

[0010] In some embodiments, a sliding rod 2 is slidably connected above the shell, and one end of the sliding rod 2 is fixedly connected to an upper push plate and a clamping plate 2.

[0011] In some embodiments, an upper guard plate is fixedly connected to one side of the shell, a spring three is fixedly connected to one end of the upper guard plate and the second card plate, a thermal sheet two is fixedly connected to one side of the shell, and one side of the thermal sheet two is fixedly connected to the second card plate.

[0012] In some embodiments, a buffer pad is fixedly connected to the edge of the shell.

[0013] In some embodiments, one end of the buffer pad is fixedly connected to a sticky pad.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. A PD power supply with plug protection function, when the plug and the socket are short-circuited and overheated, the thermal sensitive sheet will be deformed and bent and no longer restrict the card board. At this time, the card board is pushed out by the spring, and the device is pushed away from the socket through the push-down plate, so that the device and the socket are physically separated to prevent melting and fire.

[0016] 2. A PD power supply with plug protection function, when the interface circuit board is overheated, one end of the thermistor will bend, so that the push plate will pop out and push the wire connector out, preventing the charged electronic device from being damaged.

[0017] 3. A PD power supply with plug protection function can reduce the damage caused by falling from a height through a buffer pad. The sticky rubber pad installed on the lower side of the buffer pad can increase the installation firmness of the device when the device is installed on a vertical socket to prevent the device from falling due to the weight.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the main structural diagram of the utility model;

[0021] Figure 2 It is a bottom view structural diagram of the utility model;

[0022] Figure 3 This is a side structural diagram of the push-down plate of the utility model;

[0023] Figure 4 It is a partial structural diagram of a thermal-sensitive sheet of the utility model;

[0024] Figure 5 It is a partial cross-sectional structural diagram of the utility model;

[0025] Figure 6 This is a second installation structure diagram of the thermal sheet of the utility model.

[0026] Reference numerals:

[0027] 1. Shell; 2. Buffer pad; 3. Interface 1; 4. Interface 2; 5. Upper push plate; 6. Upper side guard plate; 7. Main circuit board; 8. Adhesive pad; 9. Plug; 10. Lower push plate; 11. Slide bar 1; 12. Card plate 1; 13. Spring 1; 14. Thermal film 1; 15. Spring 2; 16. Positioning boss; 17. Interface circuit board; 18. Slide bar 2; 19. Card plate 2; 20. Thermal film 2; 21. Spring 3. DETAILED DESCRIPTION

[0028] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0029] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0030] Embodiment 1:

[0031] like Figure 1-6As shown, a PD power supply with a plug protection function comprises a shell 1, a plug 9 is fixedly connected to the bottom of the shell 1, and the plug 9 can be directly connected to the socket for fast charging, a slide bar 11 is slidably connected to one side of the shell 1, and a push-down plate 10 and a card plate 12 are fixedly connected to one end of the slide bar 11, a thermal sheet 14 is slidably connected to one side of the shell 1, a spring 13 and a spring 2 15 are fixedly connected to one side of the shell 1, one end of the spring 13 is fixedly connected to the card plate 12, and one end of the spring 2 15 is fixedly connected to the thermal sheet 14;

[0032] Before using the device, the push-down plate 10 can be pressed into the housing 1, and the push-down plate 10 drives the slide bar 11 and the card plate 12 to move inward. During the movement, one end of the thermal sheet 14 has a chamfer, which can be stuck after the card plate 12 moves upward to prevent it from falling. One end of the thermal sheet 14 is connected to the outer edge near the plug 9 through a heat-conducting wire. When the plug 9 and the socket are short-circuited and overheated, the thermal sheet 14 will be deformed and bent and no longer restrict the card plate 12. At this time, the card plate 12 is pushed out by the spring 13, and the device is pushed away from the socket through the push-down plate 10, so that the device and the socket are physically separated to prevent melting and fire.

[0033] The spring 2 15 can move backwards to allow the clamping plate 12 to pass when pressing the push plate 10 inwards.

[0034] In this embodiment, one end of the card plate 12 is fixedly connected to a positioning boss 16, and the positioning boss 16 can fix the card plate 12 on one side of the thermal film 14 to prevent sliding.

[0035] In this embodiment, a main circuit board 7 is fixedly connected to the inside of the shell 1, a battery is installed in the main circuit board 7, an interface circuit board 17 is fixedly connected above the main circuit board 7, and the bottom of the main circuit board 7 is fixedly connected to the plug 9. Interface 1 3 and interface 2 4 are provided above the interface circuit board 17, interface 1 3 is a USB interface, and interface 2 4 is a USB-C interface that can charge various types of interfaces.

[0036] In this embodiment, a slide bar 18 is slidably connected to the top of the housing 1, and an upper push plate 5 and a clamping plate 19 are fixedly connected to one end of the slide bar 18. When the upper push plate 5 moves outward, the wire connector inserted into the interface 1 3 and the interface 2 4 can be pushed out and separated from the device;

[0037] The housing 1 is fixedly connected to an upper guard plate 6 on one side, and a spring 3 21 is fixedly connected to the upper guard plate 6 and one end of the second card plate 19. A thermal sheet 20 is fixedly connected to one side of the housing 1. The thermal sheet 20 is connected to the interface circuit board 17 through a heat-conducting wire, and one side of the thermal sheet 20 is fixedly connected to the second card plate 19.

[0038] When the upper push plate 5 is pushed inward, the spring three 21 is compressed and then blocked by the boss at one end of the thermistor two 20 to prevent it from falling. When the interface circuit board 17 is overheated, one end of the thermistor two 20 is bent, causing the upper push plate 5 to pop out and push the wire connector out.

[0039] In this embodiment: before using the device, the push-down plate 10 can be pressed into the housing 1, and the push-down plate 10 drives the slide bar 11 and the card plate 12 to move inward. During the movement, one end of the thermal sheet 14 has a chamfer, which can be stuck after the card plate 12 moves upward to prevent it from falling. One end of the thermal sheet 14 is connected to the outer edge near the plug 9 through a heat-conducting wire. When the plug 9 and the socket are short-circuited and overheated, the thermal sheet 14 will be deformed and bent and no longer restrict the card plate 12. At this time, the card plate 12 is pushed out by the spring 13, and the device is pushed away from the socket through the push-down plate 10, so that the device and the socket are physically separated to prevent melting and fire.

[0040] The spring 2 15 can move backwards to allow the card plate 12 to pass through when pressing the push plate 10 inwards;

[0041] When the upper push plate 5 is pushed inward, the spring three 21 is compressed and then blocked by the boss at one end of the thermistor two 20 to prevent it from falling. When the interface circuit board 17 is overheated, one end of the thermistor two 20 is bent, causing the upper push plate 5 to pop out and push the wire connector out.

[0042] Embodiment 2:

[0043] A PD power supply with a plug protection function. This embodiment makes the following improvements on the basis of embodiment 1: Figure 1-6 As shown,

[0044] In this embodiment, a buffer pad 2 is fixedly connected to the edge of the shell 1, and a sticky rubber pad 8 is fixedly connected to one end of the buffer pad 2. The buffer pad 2 can reduce the damage caused by falling from a height, and the sticky rubber pad 8 can increase the installation firmness of the device when the device is installed on a vertical socket to prevent the device from falling due to weight.

[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A PD power supply with a plug protection function, comprising a housing (1), characterized in that: A plug (9) is fixedly connected to the bottom of the shell (1), a slide rod (11) is slidably connected to one side of the shell (1), one end of the slide rod (11) is fixedly connected to a push-down plate (10) and a clamping plate (12), and a thermal sheet (14) is slidably connected to one side of the shell (1).

2. The PD power supply with plug protection function according to claim 1, characterized in that: A spring 1 (13) and a spring 2 (15) are fixedly connected to one side of the housing (1); one end of the spring 1 (13) is fixedly connected to a clamping plate 1 (12); and one end of the spring 2 (15) is fixedly connected to a thermal sheet 1 (14).

3. The PD power supply with plug protection function according to claim 2, characterized in that: One end of the clamping plate (12) is fixedly connected with a positioning boss (16).

4. The PD power supply with plug protection function according to claim 1, characterized in that: A main circuit board (7) is fixedly connected inside the housing (1), an interface circuit board (17) is fixedly connected above the main circuit board (7), a plug (9) is fixedly connected below the main circuit board (7), and an interface 1 (3) and an interface 2 (4) are provided above the interface circuit board (17).

5. The PD power supply with plug protection function according to claim 4, characterized in that: A second slide bar (18) is slidably connected to the upper portion of the housing (1), and one end of the second slide bar (18) is fixedly connected to an upper push plate (5) and a second clamping plate (19).

6. The PD power supply with plug protection function according to claim 5, characterized in that: One side of the shell (1) is fixedly connected to an upper side guard plate (6), one end of the upper side guard plate (6) and the second clamping plate (19) are fixedly connected to a spring three (21), one side of the shell (1) is fixedly connected to a second thermal-sensitive sheet (20), and one side of the second thermal-sensitive sheet (20) is fixedly connected to the second clamping plate (19).

7. The PD power supply with plug protection function according to claim 6, characterized in that: A buffer pad (2) is fixedly connected to the edge of the shell (1).

8. The PD power supply with plug protection function according to claim 7, characterized in that: One end of the buffer pad (2) is fixedly connected to a sticky rubber pad (8).

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