TWM657358U - Power adapter featuring automatic power-off at high temperature - Google Patents

Abstract

The invention provides a power adapter with automatic power off at high temperature, including: a front cover and a rear shell. The front cover is provided with a cathode socket, an anode socket and a grounding socket. The rear shell can be combined with the front cover, and the rear shell accommodates an internal conductive structure. The internal conductive structure includes: a cathode socket clip, a cathode plug, an anode conductive structure, an anode plug, a grounding socket clip and an anode socket seat. The anode socket includes a heat-melting block. When the temperature of the heat-melting block is greater than the melting point, the heat-melting block will melt and deform, thereby making the internal conductive structure unable to continue to conduct the circuit, thereby achieving the effect of actively avoiding the occurrence of fire.

Description

Power adapter with automatic power off at high temperature

This creation is about a power adapter, specifically a power adapter that can automatically cut off power when encountering high temperatures.

Since sockets in different countries have different types, in order to allow the devices carried to be used in different countries, power adapters have been developed. The power adapters serve as a bridge between the sockets and the plugs, so that the power cords of the devices carried can be successfully inserted into sockets with different holes. Currently, the most common in Taiwan is 3P to 2P, because some sockets did not need to be used with grounding wires when they were set up in the early days, so there were only two-hole sockets at that time. In order to be able to be used in old two-hole sockets, the use of power adapters has increased significantly.

Furthermore, there is another type of power adapter with a built-in transformer, which is used to adjust the output of voltage and current to supply the corresponding power to the connected device. The most common adapter is the so-called tofu head, one end of which is a general plug, and the other end is a USB socket or a socket corresponding to other electronic device models, thereby supplying power for storage (charging) or equipment operation. In addition, car-type adapters are also widely used, one end of which is a plug that matches the cigarette lighter in the car, and the other end is a USB socket or a socket type corresponding to other electronic devices, thereby providing power to other electronic devices in the car.

The various power adapters mentioned above, whether they are simply power adapters (such as 3P to 2P) or adapters with transformers inside (such as the aforementioned tofu head or car charger adapter), may cause the temperature of the adapter to continue to rise due to the high power of the electrical appliance after being overloaded or operated for a long time, or the high temperature of the electrical appliance is transmitted to the adapter along the line, which will also cause the temperature of the adapter to rise. If the power is not cut off immediately, the rising high temperature may ignite other flammable materials around and cause a fire.

To overcome the above problems, this invention provides a high-temperature automatic power-off power adapter. When encountering an abnormally high temperature condition, it will automatically cut off the power. The user can directly plug the plug into the high-temperature automatic power-off power adapter without worrying about the adapter overheating and melting. Furthermore, if the wire has a high temperature, whether it is the device end, the socket end or the power transformer in the middle, it will first trigger the automatic power-off mechanism of this invention to stop the power supply, avoiding the continuous increase of heat due to continuous power conduction, thereby damaging the device. From this, we can see that this invention can stop the transmission of electricity when overheating occurs, which can not only prevent the traditional adapter from overheating and melting or causing fires in surrounding flammable materials, but also prevent daily life charging equipment or other equipment that generates high heat from being damaged due to overheating.

In addition, it should be noted that the power adapter described in this work includes: a simple conversion plug type or a power adapter with a built-in transformer type. The plug on one side and the socket type on the other side are not limited by the diagram of this work.

The invention discloses a power adapter with automatic power off at high temperature, comprising: a front cover and a rear shell. The front cover is provided with a cathode socket, an anode socket and a grounding socket. The rear shell is relatively coupled to the front cover, and the rear shell accommodates an internal conductive structure, which comprises: a cathode socket clip, a cathode plug, an anode conductive structure, an anode plug, a grounding socket clip and an anode socket seat; wherein the cathode socket clip is electrically connected to the cathode plug and corresponds to the cathode socket. The anode conductive structure contacts and electrically connects the anode plug, and the grounding socket clip corresponds to the grounding socket; and the anode socket seat is electrically connected to the anode plug through the anode conductive structure, and the cathode plug and the anode plug will protrude out of the rear shell for plugging into other sockets.

The anode socket seat includes: a clamp seat, two first guide pieces, two second guide pieces, a spring, an anode socket clamp and a heat-melting block. The outer side of one end of the clamp seat abuts against the anode conductive structure. The two first guide pieces abut against each other and overlap, and the first guide piece on the outer side abuts against the inner side of the other end of the clamp seat. The two second guide pieces abut against each other and overlap, and are arranged relative to the two first guide pieces. The two ends of the spring are respectively arranged at the first guide piece and the second guide piece opposite to each other on the inner side. The anode socket clamp is arranged between the two first guide pieces and the two second guide pieces, and corresponds to the anode socket. The hot melt block is located in the middle of the second guide plate on the outside and the inner side of the clamp. When the temperature of the hot melt block is greater than the melting point, the hot melt block will melt and deform, so that the second guide plate is separated from the clamp, achieving the purpose of disconnecting the conductive structure.

This invention further sets up an IoT chip and a control mechanism, and through the IoT chip, the user can connect to the control software information of the handheld device to display the temperature warning signal of the power adapter with automatic power off at high temperature, and to allow the user to operate remotely.

This invention provides an embodiment of a power adapter with automatic power off at high temperature, wherein the internal conductive structure is further provided with an LED indicator light. An LED indicator light hole can be provided on the front cover corresponding to the position of the LED indicator light, so that the light of the LED indicator light can be displayed externally. Alternatively, the rear shell is made of a light-transmitting material, so that the light of the LED indicator light can be observed when the light is bright or changes in brightness. Furthermore, a focusing recess is provided on the rear shell, and the focusing recess is adjacent to the LED indicator light, so that the light can be more obvious when the LED indicator light is emitting light.

This invention provides an embodiment of a power adapter with automatic power off at high temperature, wherein the rear housing is further provided with a screw, which is electrically connected to the grounding socket clip and locks the grounding socket clip on the rear housing.

This invention provides an embodiment of a power adapter with automatic power off at high temperature, wherein a clamping protrusion is provided on the outer side of one end of the clamping seat, which can contact the anode conductive structure.

This invention provides an embodiment of a power adapter with automatic power off at high temperature, wherein the two first guides are respectively provided with a first guide protrusion with the same protrusion direction, which are mutually abutted and overlapped, and the two second guides are respectively provided with a second guide protrusion with the same protrusion direction, which are mutually abutted and overlapped, and the protrusion directions of the two first guide protrusions and the two second guide protrusions are opposite to each other.

An embodiment of the power adapter with automatic power off at high temperature of the invention, wherein the two first guides are respectively provided with two first guide protrusion strips, and the two second guides are respectively provided with two second guide protrusion strips.

This invention provides an embodiment of a power adapter with automatic power off at high temperature, wherein the two ends of the spring are respectively hooked on the first guide protrusion strip of the first guide strip and the second guide protrusion strip of the second guide strip opposite to each other on the inner side.

1: Front cover

11: Cathode jack

12: Anode jack

13: Grounding socket

14: LED indicator light hole

15: First V-shaped incision

2: Rear shell

21: Focusing notch

211: Second V-shaped incision

100: Internal conductive structure

3: Cathode jack clip

4:Cathode plug

5: Anode conductive structure

6: Anode plug

7: Grounding jack clip

8: Anode socket

81: Clamp seat

811: Clamp protrusion

82: First film

821: First guide blade protrusion

822: First guide protrusion strip

823: End of the first film

83: Second Directing

831: Second guide blade protrusion

832: Second guide protrusion strip

833: End of the second film

84: Spring

85: Anode jack clip

86: Hot melt block

9:LED indicator light

10: Screws

Figure 1 is a three-dimensional diagram of an embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 2 is a front view of an embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 3 is a rear view of an embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 4 is a three-dimensional exploded view of an embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 5 is a three-dimensional cross-sectional view of an embodiment of the power adapter with automatic power off at high temperature of the invention.

Figure 6 is a front cross-sectional view of an embodiment of the power adapter with automatic power off at high temperature of the present invention.

Figure 7 is a three-dimensional diagram of the internal conductive structure of an embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 8 is a front view of the internal conductive structure of an embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 9 is a three-dimensional diagram of the anode socket of one embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 10 is a front view of the anode socket of one embodiment of the power adapter with automatic power off at high temperature of the invention.

Figure 11A is a three-dimensional diagram of the first conductor of an embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 11B is a three-dimensional diagram of the second conductor of an embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 12 is a three-dimensional diagram of another embodiment of the power adapter with automatic power off at high temperature of this invention.

Figure 13 is a three-dimensional diagram of another embodiment of the power adapter with automatic power off at high temperature of the present invention, in which the grounding is set in a cylindrical shape.

Please refer to the embodiments of this invention, Figures 1 to 6. This invention provides a power adapter with automatic power off at high temperature, including a front cover 1 and a rear shell 2. The front cover 1 is provided with a cathode socket 11, an anode socket 12 and a ground socket 13 for other plugs to be inserted, and the rear shell 2 accommodates an internal conductive structure 100.

Please refer to Figures 6, 7 and 8 of the present invention. The internal conductive structure 100 includes: a cathode socket clip 3, a cathode plug 4, an anode conductive structure 5, an anode plug 6, a grounding socket clip 7 and an anode socket seat 8.

The cathode socket clip 3 is electrically connected to the cathode plug 4 and is arranged corresponding to the cathode socket 11, the anode conductive structure 5 contacts and electrically connects to the anode plug 6, and the grounding socket clip 7 is arranged corresponding to the grounding socket 13; and the anode socket seat 8 is electrically connected to the anode plug 6 via the anode conductive structure 5.

Please refer to Figures 6, 8, 9 and 10 of the present invention. The anode socket seat 8 includes: a clamp seat 81, two first guide pieces 82, two second guide pieces 83, a spring 84, an anode socket clamp 85 and a heat-melting block 86.

The outer side of one end of the clamp 81 contacts the anode conductive structure 5.

The first guide pieces 82 abut against each other and overlap, and the outer side of the first guide piece 82 abuts against the inner side of the other end of the clamp 81. The second guide pieces 83 abut against each other and overlap, and are arranged relative to the two first guide pieces 82.

The two ends of the spring 84 are respectively disposed on the first guide piece 82 and the second guide piece 83 which are opposite to each other on the inner side. The anode socket clip 85 is disposed between the two first guide pieces 82 and the two second guide pieces 83, and the anode socket clip 85 is disposed corresponding to the anode socket 12.

The heat melting block 86 is arranged at the inner middle of the second guide piece 83 on the outer side and the end of the clamp 81. When the temperature is higher than the melting point of the heat melting block 86, it will melt and deform, so that the clamp 81 and the anode conductive structure 5 will no longer abut each other, and the current cannot reach the anode socket clamp 85 from the anode plug 6, thereby achieving the effect of automatic power off, that is, the power adapter with high temperature automatic power off has the effect of automatic power off. The number of the first guide piece 82 or the second guide piece 83 of this invention is not limited to two, and a temperature sensor (not shown) can be placed near the heat melting block 86 to measure the temperature of the heat melting block or the surrounding area of the heat melting block and send a temperature warning signal.

Please refer to Figures 1, 2, 6, 7 and 8 of the present invention. The internal conductive structure 100 is further provided with an LED indicator light 9, and the front cover 1 is further provided with an LED indicator light hole 14 corresponding to the LED indicator light 9. The LED indicator light 9 contacts and electrically connects the clip seat 81 and the cathode socket clip 3, and is electrically connected to the anode socket clip 85.

In addition, please refer to Figures 1, 2, 4 and 10 of the present invention. When the heat block 86 or the temperature sensor (not shown) nearby transmits the temperature warning signal to a handheld device app or other environmental control related equipment via a wireless information transmission mechanism, so as to instantly grasp the internal temperature of the power adapter with automatic power off at high temperature.

Please refer to Figures 1, 3, 7 and 8 of the present invention. The rear housing 2 is further provided with a screw 10, which is electrically connected to the grounding socket clip 7 and locks the grounding socket clip 7 on the rear housing 2. The screw 10 can lock a grounding wire, so that when a short circuit or leakage occurs, the leakage current will be immediately introduced into the ground to prevent the human body that comes into contact with it from receiving an electric shock.

Please refer to Figure 8 of the present invention, the outer side of the end of the clamp 81 is provided with a clamp protrusion 811, which contacts or separates from the anode conductive structure 5.

Please refer to the present invention embodiment Figures 9 to 11B, wherein the two first guides 82 are respectively provided with a first guide protrusion 821 with the same protrusion direction, which are mutually abutting and overlapping, the two second guides 83 are arranged in opposite directions to the two first guides 82, and the two second guides 83 are also respectively provided with a second guide protrusion 831 with the same protrusion direction, which are mutually abutting and overlapping, and the protrusion directions of the two first guide protrusions 821 and the two second guide protrusions 831 are opposite to each other. Furthermore, the two first guides 82 are further provided with two first guide protrusion strips 822, and the two second guides 83 are further provided with two second guide protrusion strips 832.

Furthermore, the two ends of the spring 84 are respectively hooked on the first guide protrusion 822 of the first guide 82 and the second guide protrusion 832 of the second guide 83 on the inner side.

Please refer to Figures 8 to 11B again. When the user does not insert a three-pin plug into the cathode socket 11, the anode socket 12 and the ground socket 13, the spring 84 will tighten the first guide piece 82 and the second guide piece 83 on the inner side, so the first guide piece end 823 of the first guide piece 82 and the second guide piece end 833 of the second guide piece 83 on the outer side will respectively contact the clamp 81, causing the clamp 81 to clamp in the direction of the two ends of the spring 84. At this time, the clamp protrusion 811 and the anode conductive structure 5 will separate, so that the internal conductive structure 100 will not be turned on, so as to avoid unnecessary loss of the internal conductive structure 100 and electricity.

When a user wants to simultaneously insert the three pins of a three-pin plug (not shown) into the cathode socket 11, the anode socket 12 and the ground socket 13, and one of the pins is inserted into the anode socket clip 85, the two first guide pieces 82 and the two second guide pieces 83 have the effect of guiding the pin to be inserted into the anode socket clip 85, and the spring 84 hooked on the inner side of the first guide piece 82 and the second guide piece 83 will be stretched open, so that the pin can be inserted into the anode socket clip 85. Insert the anode socket clip 85, and the clip protrusion 811 and the anode conductive structure 5 will collide. At the same time, the other two pins of the three-pin plug are also inserted into the cathode socket 11 and the ground socket 13 respectively. In this way, the internal conductive structure 100 of the high-temperature automatic power-off power adapter is turned on, allowing the user to apply the current through the high-temperature automatic power-off power adapter to further drive the electrical device electrically connected to the three-pin plug.

When the electrical appliance is overused or encounters other abnormal conditions, the current flow temperature of the heat melting block 86 is greater than a predetermined value, and the heat melting block 86 will melt and deform. At this time, the contact between the outer second guide piece 83 and the heat melting block 86 will change, and because the spring 84 will tighten the inner second guide piece 83, the outer second guide piece 83 and the inner second guide piece 83 will move in the same direction, thereby driving the clamping seat 81 to clamp in the direction of the spring 84, so that the clamping seat protrusion 811 will separate from the anode conductive structure 5, and the internal conductive structure 100 will automatically cut off the power to maintain the safety of the electrical appliance. In addition, as mentioned above, since the temperature sensor (not shown) near the hot melt block 86 will transmit the temperature warning signal to a handheld device app or other control device or warning device via wireless signal transmission such as WIFI or Bluetooth, the internal temperature of the power adapter with automatic power off at high temperature can be grasped in real time to avoid the occurrence of fire.

Please refer to FIG. 12 . In this embodiment, the rear housing 2 is made of a light-transmitting material so that the light of the LED indicator light 9 can be observed when the light is bright or changes between bright and dark. In this embodiment, the LED indicator light hole 14 is not required. Furthermore, a light-concentrating recess 21 is provided on the rear housing 2. The light-concentrating recess 21 is adjacent to the LED indicator light 9. When the LED indicator light 9 emits light, the light can be more obvious. In addition, a first V-shaped notch 15 is formed on the edge of the front cover 1, and the light-concentrating recess 21 is formed by connecting the two sides and the tip of the first V-shaped notch 15 and the second V-shaped notch 211 after a second V-shaped notch 211 is formed along the edge of the rear housing 2. The light-focusing recess 21 of this embodiment is only one of the embodiments and is not limited thereto. The light-focusing recess 21 may be a regular or irregular shape such as an arc-shaped recess. The front cover 1 may not need to be provided with a cutout, which is described in advance.

Furthermore, as shown in FIG. 12 and FIG. 13, in this embodiment, the grounding device can be cylindrical or pad-shaped, which is a form of known technology and its structural features will not be described in detail here.

In summary, the power adapter with high temperature automatic power off will automatically cut off the power when it encounters an abnormally high temperature condition, so the user can directly plug the plug into the power adapter with high temperature automatic power off without worrying about the occurrence of fire. In addition, the user can display the temperature warning signal issued by the power adapter with high temperature automatic power off through the software of the handheld device, and make further responses and disposal.

1: Front cover

2: Rear shell

100: Internal conductive structure

3: Cathode jack clip

4:Cathode plug

6: Anode plug

7: Grounding jack clip

8: Anode socket

9:LED indicator light

Claims (10)

A power adapter with automatic power off at high temperature includes: a front cover on which a cathode socket, an anode socket and a ground socket are arranged; a rear shell body, one side of which can be combined with the front cover, and the rear shell body accommodates an internal conductive structure, the internal conductive structure includes: a cathode socket clip, a cathode plug, an anode conductive structure, an anode plug, a A grounding jack clip and an anode jack seat; wherein the cathode jack clip is electrically connected to the cathode plug and is arranged corresponding to the cathode jack; the anode conductive structure contacts and electrically connects to the anode plug; and the grounding jack clip is arranged corresponding to the grounding jack; and wherein the anode jack seat is electrically connected to the anode plug through the anode conductive structure, and the anode plug The hole seat includes: a clamping seat, the outer side of one end of which abuts against the anode conductive structure; two first guide pieces, which abut against each other and overlap, and the first guide piece on the outer side abuts against the inner side of the other end of the clamping seat; two second guide pieces, which abut against each other and overlap, and are arranged relative to the two first guide pieces; a spring, the two ends of which are respectively arranged on the first guide piece and the second guide piece on the inner side. Guide piece; an anode socket clip, which is arranged between the two first guide pieces and the two second guide pieces and corresponds to the anode socket; and a heat melting block, which is arranged in the middle of the inner side of the second guide piece on the outer side and the end of the clamp seat. When the temperature of the heat melting block is higher than the melting point, the heat melting block melts and deforms, and can stop squeezing the third part, thereby automatically disconnecting the internal conductive structure. For example, the power adapter with automatic power off at high temperature as in claim 1, wherein the internal conductive structure is further provided with an LED indicator light. As in claim 2, the power adapter with automatic power off at high temperature, wherein the LED indicator light contacts and electrically connects the clip base and the cathode socket clip, and electrically connects the anode socket clip. As in claim 1, the power adapter with automatic power off at high temperature, wherein the rear housing is further provided with a screw, which is electrically connected to the grounding socket clip and locks the grounding socket clip on the rear housing. As in claim 1, the power adapter with automatic power off at high temperature has a clamp protrusion on the outer side of the end of the clamp, which contacts or separates from the anode conductive structure. As in claim 1, the power adapter with automatic power off at high temperature, wherein the two first guides are respectively provided with a first guide protrusion with the same protrusion direction, which are mutually abutted and overlapped, and the two second guides are respectively provided with a second guide protrusion with the same protrusion direction, which are mutually abutted and overlapped, and the protrusion directions of the two first guide protrusions and the two second guide protrusions are opposite to each other. As in claim 6, the power adapter with automatic power off at high temperature, wherein the two first guides are respectively provided with two first guide protrusion strips, and the two second guides are respectively provided with two second guide protrusion strips. As in claim 7, the power adapter with automatic power off at high temperature, wherein the two ends of the spring are respectively hooked on the first guide protrusion strip of the first guide strip and the second guide protrusion strip of the second guide strip opposite to each other on the inner side. For example, in the power adapter with automatic power off at high temperature of claim 2, the rear shell can be made of a light-transmitting material, and a focusing recess is provided on the rear shell, and the focusing recess is adjacent to the LED indicator light. As in claim 9, the power adapter with automatic power off at high temperature, wherein the edge of the front cover forms a first V-shaped cutout, and the focusing recess is formed by extending the edge of the rear shell to form a second V-shaped cutout, so that the first V-shaped cutout and the second V-shaped cutout are connected to each other at both sides and the tip.

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