A special adapter for embedded touch screen stove

Abstract

The present invention provides a dedicated adapter for embedded touch-screen stoves, comprising a housing, a PCB, a power input cable, a power output cable, and a ground cable. The PCB is mounted within the housing; one end of the power input cable is mounted on the housing and inserted into the housing and connected to the PCB; one end of the power output cable is mounted on the housing and inserted into the housing and connected to the PCB; one end of the ground cable is mounted on the housing and connected to the power input cable. By introducing a ground cable into the adapter, the present invention allows the adapter to connect to the stove surface when mounted on the stove, ensuring safe grounding to the stove surface and improving the safety of the new stove.

Description

Technical Field

[0001] The present invention relates to an adapter, in particular to a special adapter for an embedded touch-screen stove. Background Art

[0002] Conventional gas stoves typically use a mechanical stopcock to control the power level, requiring no external power supply. New gas stoves are now sporadically appearing on the market. These utilize electronic control schemes for power adjustment, some employing stepper motors, others using proportional valves. Because existing battery-powered solutions cannot support the relevant application circuits, these products often use switching power supplies, typically via an external adapter. A few brands currently offer gas stoves with built-in adapters, but these adapters have very low output power, primarily used to power the Wi-Fi module and cannot be used for power adjustment.

[0003] The existing solution of using an external adapter for firepower adjustment has the following disadvantages:

[0004] 1. The external adapter is a universal type that supplies power to the controller through a two-core DC connector without a ground wire. This poses a safety hazard. For example, if a component on the adapter fails, the bottom cover of the gas stove may become energized.

[0005] 2. The external adapter only provides a single output. The controller generally adds a buck-type step-down circuit to achieve multi-channel power supply. There are many related circuit components, which requires a certain cost and has a relatively higher failure rate.

[0006] 3. The operating temperature range of the external adapter is generally 0 to 40 degrees Celsius, which is not suitable for embedding inside the stove body. The interior of the stove body is relatively sealed. Even if an insulation baffle is added, the ambient temperature can be higher than 60 degrees Celsius.

[0007] 4. The adapter itself is large and easily blocks nearby sockets. If it is embedded inside the stove body, it will not only take up space, but also be difficult to repair in case of failure, such as having to remove the pot rack, fire cover, liquid tray and glass panel first.

[0008] 5. The DC connector used for power supply docking does not have a locking mechanism, has poor waterproof performance, and is likely to come loose, resulting in a poor user experience. Furthermore, additional structural parts are required to secure the DC terminal block on the stove body, which incurs a certain cost.

[0009] 6. External adapters are generally universal accessories with strong output capabilities to suit different applications. They are relatively more expensive and do not support emergency power supply. For example, during a power outage, even if a manufacturer has developed an emergency power supply, you must first unplug the original DC connection cable and then plug in the emergency power supply cable. Summary of the Invention

[0010] The present invention provides a dedicated adapter for an embedded touch screen stove, which at least solves the problem that the gas stove with an external adapter solution in the prior art has safety hazards and relatively high manufacturing and after-sales costs.

[0011] The present invention provides a special adapter for an embedded touch-screen stove, comprising a shell, a PCB board, a power input line, a power output line, and a ground wire. The PCB board is installed in the shell, one end of the power input line is installed on the shell, and one end of the power input line is inserted into the shell and connected to the PCB board, one end of the power output line is installed on the shell, and one end of the power output line is inserted into the shell and connected to the PCB board, one end of the ground wire is installed on the shell, and one end of the ground wire is connected to the power input line.

[0012] Furthermore, the dedicated adapter for the embedded touch screen stove also includes a ground wire extension wire, one end of the ground wire extension wire is a plug terminal, and the other end of the ground wire extension wire is a ring terminal.

[0013] Furthermore, a circuit is provided on the PCB board, and the dedicated adapter for the embedded touch screen stove also includes a plurality of thermal conductive copper sheets, which are installed on one side or both sides of the PCB board, and are connected to the circuit on the PCB board.

[0014] Furthermore, the dedicated adapter for the embedded touch screen stove also includes a heat sink, on which heat sink fins are provided, and the heat sink is connected to the PCB board.

[0015] Furthermore, the PCB board is provided with a plurality of power output interfaces, the output voltage of the power output interfaces is one or more of 30V, 20V, 12V, and 3.3V, and the power output interfaces are connected to the power output lines.

[0016] Furthermore, the dedicated adapter for the embedded touch screen stove also includes an emergency power supply, and a DC power supply interface is also provided on the PCB board, and the emergency power supply is connected to the DC power supply interface of the PCB board.

[0017] Furthermore, the dedicated adapter for the embedded touch screen stove also includes a thermally conductive silicone pad, and the heat sink is connected to one side of the PCB board through the thermally conductive silicone pad.

[0018] Furthermore, the other end of the power output cable is provided with a 3-pin plug.

[0019] Furthermore, the power input line is a national standard three-prong power line.

[0020] Compared to existing technologies, this invention incorporates a grounding wire into the adapter, allowing it to connect to the stove surface when installed, ensuring safe grounding and improving the safety of the new stove. Furthermore, the adapter has a simple structure and can extract multiple power output terminals from the transformer unit on the PCB, enabling multiple uses of the adapter, expanding its applicability and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the PCB board installation structure according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection structure between the first PCB substrate and the second PCB substrate according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the connection between the thermally conductive copper sheet and the circuit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] The present invention provides a special adapter for embedded touch screen stoves, such as Figure 1 、 Figure 2 、 Figure 3 As shown, it includes a housing 1, a PCB board 5, a power input line 2, a power output line 3, and a ground line. The PCB board 5 is installed in the housing 1, one end of the power input line 2 is installed on the housing 1, and one end of the power input line 2 is inserted into the housing 1 and connected to the PCB board 5, one end of the power output line 3 is installed on the housing 1, and one end of the power output line 3 is inserted into the housing 1 and connected to the PCB board 5, one end of the ground line is installed on the housing 1, and one end of the ground line is connected to the power input line 2.

[0028] Optional, such as Figure 1 、 Figure 2 As shown, the dedicated adapter for the embedded touch screen stove also includes a ground extension wire 4, one end of the ground extension wire 4 is a plug terminal, and the other end of the ground extension wire 4 is a ring terminal 41.

[0029] Optional, such as Figure 1 、 Figure 2 As shown, the power input line 2 is a national standard three-prong power line.

[0030] Optional, such as Figure 3 、 Figure 5 As shown, a conductive circuit 55 is provided on the PCB board 5, and the dedicated adapter for the embedded touch screen stove also includes a plurality of thermal conductive copper sheets 56, which are installed on one side or both sides of the PCB board 5, and the thermal conductive copper sheets 56 are connected to the conductive circuit 55 on the PCB board 5.

[0031] Among them, Figure 1 and Figure 2 As shown, the other end of the ground extension wire 4 is a ring terminal 41, and one end of the ground wire is a spring terminal structure. The spring terminal of the ground wire is inserted into the blade terminal of the ground extension wire 4, and the ring terminal of the ground extension wire 4 is screwed to the metal housing of the home appliance. The PCB board 5 is a circuit board with electronic components arranged on the surface, and the PCB board 5 includes a first PCB substrate 51 and a second PCB substrate 52. Figure 4 As shown, a first PCB substrate 51 is provided with a socket, and a second PCB substrate 52 is inserted into the socket of the first PCB substrate 51. The second PCB substrate 52 and the first PCB substrate 51 are electrically connected using a solder structure 53. The surface of the PCB board 5 has an embedded copper layer that serves as a conductive circuit 55. A thermally conductive copper sheet 56 is connected to the conductive circuit 55. During operation of the PCB board 5, the thermally conductive copper sheet 56 serves as a conductor. Furthermore, compared to the conductive circuit 55, the thermally conductive copper sheet 56 has a larger surface area, which improves heat dissipation efficiency while conducting heat.

[0032] It should be noted that the conductive circuit 55 described in this embodiment of the present invention refers to a circuit structure used to connect two electronic components. The thermally conductive copper sheet 56 is connected to the conductive circuit 55 by contact or welding, achieving a large copper surface area on the PCB board. Furthermore, in this embodiment of the present invention, the same conductive circuit 55 includes thermally conductive copper sheets 56 on both sides of the PCB board 5. The PCB board 5 includes vias connecting the two copper sheets, short-circuiting the two sheets together. This allows for more even heat distribution on both sides, ultimately reducing thermal resistance to the air and achieving faster heat dissipation.

[0033] The embodiment of the present invention uses a ground wire extension cord with one end fixedly connected to the bottom shell of the gas stove. The ground wire extension cord's plug-in terminal is used to clamp the ground wire, achieving screw-free installation of the ground wire. During maintenance, the ground wire can be removed by simply pulling one end of the ground wire out of the ground wire extension cord's plug-in terminal. This improves the safety of the stove while also providing a better user experience and facilitating ground wire maintenance. At the same time, the embodiment of the present invention uses a large number of thermally conductive copper sheets on both sides of the PCB board. While using the thermally conductive copper sheets to conduct current, it also uses the large area of ​​thermally conductive copper sheets to dissipate heat, effectively distributing the heat generated by the internal components. This allows the PCB board to operate within a temperature range of 0 to 70 degrees Celsius, ensuring that the adapter can function normally inside the stove body and allowing the adapter to be safely installed in the stove body. In addition, the embodiment of the present invention reduces the area occupied by the PCB board by configuring the PCB board to be composed of a first PCB substrate and a second PCB substrate in a vertical manner and connecting them using solder. This gives the PCB board a three-dimensional structure, effectively reducing the volume of the PCB board without affecting the heat dissipation effect, avoiding the use of aluminum alloy heat sinks and PCB connectors, and achieving an extremely compact layout and wiring. Compared with conventional adapters on the market, the three-dimensional space occupied by the adapter is smaller, effectively reducing manufacturing and after-sales costs.

[0034] Compared with ordinary adapters, the adapter in the embodiment of the present invention has a smaller footprint due to the PCB board and avoids the use of a heat sink, thereby ensuring that the adapter has a smaller size and reduces the space occupied by the adapter in the stove body. The size is similar to the stove body battery box of a conventional gas stove. In the actual production process, there is no need to design a new stove body structure for the new gas stove. The installation of the new gas stove can be completed by simply installing the adapter in the stove body battery box, which not only facilitates maintenance (the adapter can be removed by simply loosening two screws), but also avoids the incompatibility of the bottom shell, effectively reducing production costs.

[0035] Optionally, the PCB board is provided with several power output interfaces, the output voltage of the power output interfaces is one or more of 30V, 20V, 12V, and 3.3V, and the power output interfaces are connected to the power output lines.

[0036] Among them, the PCB board is provided with a 30V power output interface and a 12V power output interface, and the PCB board 5 is provided with a transformer, a diode, and an electrolytic capacitor. The transformer is provided with an intermediate tap, which is connected to the electrolytic capacitor through a diode, so that the PCB board 5 can provide 30V and 12V voltages, thereby realizing dual-channel output.

[0037] Buck-type DC converter and step-down circuits typically require multiple components, including dedicated chips, inductors, input and output capacitors, and sampling resistors. However, the present invention effectively implements dual-channel output by combining a center tap of the transformer with a diode and an electrolytic capacitor in the adapter. Compared to conventional DC connectors, this effectively achieves dual-channel output at a lower cost and higher reliability, avoiding the use of a more complex buck-type step-down circuit.

[0038] Optionally, the other end of the power output cable in the embodiment of the present invention may also be equipped with a 3-pin plug.

[0039] Optionally, the dedicated adapter for the embedded touch screen stove also includes an emergency power supply, and a DC power interface is also provided on the PCB board, and the emergency power supply is connected to the DC power interface of the PCB board.

[0040] Among them, the emergency power supply is a battery.

[0041] The embodiment of the present invention adopts an emergency power supply, which can be used to supply power when the mains power is cut off, without the need for plugging and unplugging, thereby improving user experience.

[0042] Optionally, the dedicated adapter for the embedded touch screen stove further includes a heat sink, on which heat sink fins are provided.

[0043] In particular, the dedicated adapter for the embedded touch screen stove also includes a thermally conductive silicone pad, and the heat sink is connected to one side of the PCB board through the thermally conductive silicone pad 6.

[0044] The heat sink is installed above the PCB board, the upper part of the shell is provided with an air outlet, the lower part of the shell is provided with an air inlet, and a filter is provided at the air inlet 12.

[0045] This embodiment of the present invention utilizes a heat sink to further enhance the heat dissipation capability of the PCB within the adapter, ensuring that the PCB temperature remains below zero during stove operation and that the appliance maintains normal operation. Furthermore, this embodiment utilizes an air inlet at the bottom and an air outlet at the top to facilitate air circulation. By utilizing the rising tendency of hot air, this creates an upward airflow within the adapter, effectively cooling the heat sink and achieving optimal heat dissipation.

[0046] By integrating a grounding wire into the adapter, the present invention ensures that the adapter, when installed on the stove body, can be securely grounded to the stove body surface, thereby improving the safety of the new stove body. Furthermore, the present invention's adapter has a simple structure and can extract multiple power output terminals from the transformer unit on the PCB board, enabling multiple uses for a single adapter and expanding its applicability, thereby reducing manufacturing costs. This design outperforms existing universal adapter solutions in both reliability and cost, reducing the manufacturing and after-sales costs of the power supply system and improving the user experience.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the specification of this application, technicians can still modify or replace the specific implementation methods of the present invention with equivalents, but these modifications or changes do not depart from the scope of protection of the pending claims of the present application.

Claims

1. A dedicated adapter for embedded touch screen stoves, characterized in that: The dedicated adapter for the embedded touch-screen stove includes a housing, a PCB board, a power input line, a power output line, and a ground line. The PCB board is installed in the housing, one end of the power input line is installed on the housing, and one end of the power input line is inserted into the housing and connected to the PCB board. One end of the power output line is installed on the housing, and one end of the power output line is inserted into the housing and connected to the PCB board. One end of the ground line is installed on the housing, and one end of the ground line is connected to the power input line. The PCB board is a circuit board with electronic components arranged on its surface. The PCB board includes a first PCB substrate and a second PCB substrate. The first PCB substrate is provided with a socket, and the second PCB substrate is inserted into the socket of the first PCB substrate. The second PCB substrate and the first PCB substrate are electrically connected by a solder structure. The PCB board is provided with a circuit, which is a circuit structure for connecting two electronic components; the circuit is an embedded copper layer provided on the surface of the PCB board; The dedicated adapter for the embedded touch screen stove further includes a plurality of heat-conducting copper sheets, which are mounted on one or both sides of the PCB board and are connected to the circuit on the PCB board; The dedicated adapter for the embedded touch screen stove further includes a heat sink, which is provided with heat dissipation fins and is connected to the PCB board; The dedicated adapter for the embedded touch screen stove also includes a thermally conductive silicone pad, and the heat sink is connected to one side of the PCB board via the thermally conductive silicone pad; The dedicated adapter for the embedded touch screen stove also includes a ground extension wire, one end of which is a plug terminal, and the other end of which is a ring terminal; The PCB board is provided with several power output interfaces, the output voltage of which is one or more of 30V, 20V, 12V, and 3.3V. The power output interface is connected to the power output line; the power input line is a national standard three-plug power line.

2. The adapter according to claim 1, wherein: The dedicated adapter for the embedded touch screen stove also includes an emergency power supply. A DC power supply interface is also provided on the PCB board, and the emergency power supply is connected to the DC power supply interface of the PCB board.

3. The adapter according to claim 1, wherein: The other end of the power output line is provided with a 3-pin plug.

Images