Seat type charging device

Abstract

A seat type charging device is arranged in an accommodating space of a socket cassette, and the socket cassette is used for being embedded in a wall body. The seat-type charging device is configured in an accommodating space of a socket cassette, the socket cassette is used for being embedded in a wall body, and the seat-type charging device comprises a power supply port which is coupled with a power line penetrating through the socket cassette; the connecting port is arranged on one surface, exposed out of the wall body, of the seat type charging device and is used for plugging a charging cable for charging and discharging an electric vehicle; and the controller is coupled with the power supply port and the connecting port and is used for confirming an operation mode of charging and discharging the electric vehicle by the seat type charging device.

Description

Technical Field

[0001] The present application relates to a charging device, in particular to a seat-type charging device used for charging electric vehicles. Background Art

[0002] exist Figure 1 The figure shows the appearance and structure of a conventional Mode 3 charging device 100A. Conventional charging devices 100A are generally mounted on a wall W, and the charging device is fixed to the wall W by means of an external plug. In this way, the electric vehicle can be connected by plugging in the charging cable, thereby charging the electric vehicle. However, such fixed charging devices 100A often have problems such as accidental falling of the housing, space occupation, difficulty in installation, external objects squeezing (such as but not limited to the vehicle body, debris, etc.), sun exposure, and weight. In addition, the output port for connecting the charging cable of the current fixed charging device 100A generally only has a specific AC output port (based on the design of each car manufacturer) and a USB output port, resulting in low compatibility between different brands. The solution is nothing more than using an adapter or directly changing the brand of the fixed charging device.

[0003] Furthermore, since the external charging device 100A is typically deployed outdoors and exposed to wind, sun, and rain, it must be as waterproof and dustproof as possible. Furthermore, to prevent damage to the internal circuitry from a fall, it must also be shockproof and drop-resistant. Consequently, the increased protection required for the charging device 100A results in a bulky design and high design costs.

[0004] Therefore, how to design a seat-type charging device to prevent the charging device from falling off due to external forces such as collisions and pulling, and thus avoid the risk of the charging device hitting the ground and being broken, is a major research topic that the creators of this project want to conduct. Utility Model Content

[0005] To address the aforementioned issues, the present application provides a charging station device that overcomes the problems of the prior art. The charging station device of the present application is configured within a housing space of a socket cassette, which is embedded in a wall. The charging station device comprises: a power port coupled to a power cord extending through the socket cassette; a connection port, configured on a side of the charging station device exposed to the wall, for connecting a charging cable for charging and discharging an electric vehicle; and a controller, coupled to the power port and the connection port, for determining an operating mode of the charging station device for charging and discharging the electric vehicle.

[0006] Optionally, it also includes: a reset switch, which is configured on the same surface as the connection port and coupled to the controller; wherein the controller is used to enter a locked state when a specific condition occurs, and the reset switch is used to release the locked state according to a trigger, so that the controller can reconfirm the operating mode accordingly.

[0007] Optionally, it also includes: a power line, coupling the power port and the charging cable to transmit a power supply; and an auxiliary power supply circuit, coupling the power line and converting the power supply into a working power supply to power the controller; wherein the reset switch couples the auxiliary power supply circuit and the controller, and cuts off the working power supply according to the trigger to restart the controller and re-determine the operating mode.

[0008] Optionally, it also includes: a switch, configured on the power line; a detection module, coupling the power line and the controller, and detecting the power supply to generate a power parameter; wherein the controller controls the switch to be conductive or non-conductive according to the power parameter.

[0009] Optionally, the detection module includes: a welding detection circuit coupled to the power line and the controller, and the controller determines whether the switch can be correctly disconnected according to a welding detection signal.

[0010] Optionally, it further includes: a connection guide end, coupled to the reset switch, and used to couple to the electric vehicle through the charging cable to provide a first specific impedance for the electric vehicle to confirm that the connection with the charging cable is complete; wherein, the reset switch changes the first specific impedance to a second specific impedance according to the trigger, so that the electric vehicle can reconfirm whether the connection with the charging cable is complete, so that the controller can re-determine the operating mode accordingly.

[0011] Optionally, it also includes: a voltage divider circuit, coupled to the connection guide end, and including a first resistor and a second resistor connected in series; wherein the reset switch is connected in parallel with the second resistor to provide the first specific impedance according to the first resistor when the reset switch is turned on, and to provide the second specific impedance according to the first resistor and the second resistor when the reset switch is turned off.

[0012] Optionally, it also includes: a temperature protection device, coupled in series with the connection guide end and the voltage divider circuit, and a temperature impedance of the temperature protection device is proportional to an ambient temperature, so that the controller determines that the specific condition occurs based on the temperature impedance being too high.

[0013] Optionally, the temperature protection device is a positive temperature coefficient protection resistor or a temperature protector.

[0014] Optionally, it further includes: a temperature protection device connected in parallel to the voltage divider circuit, and a temperature impedance of the temperature protection device is inversely proportional to an ambient temperature, so that the controller can determine that the specific condition occurs based on the temperature impedance being too low.

[0015] Optionally, the temperature protection device is a negative temperature coefficient protection resistor or a temperature protector.

[0016] Optionally, it also includes: an indicator light, coupled to the controller, and used to generate corresponding color light according to the operating mode; wherein the connection port, the reset switch and the indicator light are configured in the seat-type charging device and exposed on one side of the wall.

[0017] Optionally, it also includes: a fixed frame for fixing a shell of the seat-type charging device to the socket box; and a cover body, which is pivotally connected to the fixed frame and rotates about the axis to cover the seat-type charging device and expose one side of the wall.

[0018] Optionally, the cover is made of a light-transmitting material to allow the colored light generated by the indicator light to pass through.

[0019] Optionally, the reset switch is an active reset switch with a preset on state, and the reset switch actively returns to the on state after being disconnected according to the trigger.

[0020] The primary purpose and utility of this application is to allow the charging station to be embedded in a wall without protruding from it. This not only enhances the aesthetics of the wall but also prevents the charging station from falling due to external forces such as collisions and pulling, thereby avoiding the risk of the charging station being damaged by impact with the ground.

[0021] In order to further understand the technologies, means and effects adopted by this application to achieve the intended purpose, please refer to the following detailed description and drawings of this application. It is believed that the purpose, characteristics and features of this application can be deeply and specifically understood thereby. However, the attached drawings are provided for reference and illustration only and are not intended to limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the appearance and structure of a traditional charging device;

[0023] Figure 2 This is a side view of the structural assembly of the first embodiment of the seat-type charging device of the present application;

[0024] Figure 3A This is a front view of the first embodiment of the seat-type charging device of the present application;

[0025] Figure 3B This is a diagram of the configurable types of connection ports for this application;

[0026] Figure 4 This is a circuit block diagram of the seat-type charging device of this application;

[0027] Figure 5A A circuit block diagram of the first embodiment of the connection guide circuit of this application;

[0028] Figure 5B A circuit block diagram of a second embodiment of the connection guide circuit of the present application; and

[0029] Figure 6 This is a side view of the second embodiment of the seat-type charging device of the present application.

[0030] Description of Reference Numerals

[0031] 100A: Charging device,

[0032] 100: Seat charging device,

[0033] 100-1: Surface,

[0034] 1: Shell,

[0035] 2: Power port,

[0036] 3: Connection port,

[0037] 4: Controller,

[0038] 5: Reset switch,

[0039] 6-1~6-3:Indicator lights,

[0040] 7: Power lines,

[0041] L: FireWire,

[0042] N: Neutral line,

[0043] PE: ground wire,

[0044] 8: Auxiliary power supply circuit,

[0045] SW: switch,

[0046] Dr: driving circuit,

[0047] 9: Detection module,

[0048] 90: Voltage detection circuit,

[0049] 92: Current detection circuit,

[0050] 94: Ground detection circuit,

[0051] 96: Welding detection circuit,

[0052] 98: Leakage detection circuit,

[0053] 99: Temperature detection circuit,

[0054] LP: Connect the pilot line,

[0055] PP: Connecting guide end,

[0056] LC: control guide line,

[0057] CP: Control Pilot Terminal,

[0058] CPM: Control and Guidance Module,

[0059] RX: voltage divider circuit,

[0060] RA: first resistor,

[0061] RB: second resistor,

[0062] TP: Temperature protection device,

[0063] 200: fixed frame,

[0064] 300: cover,

[0065] SB: socket box,

[0066] H: perforation,

[0067] A: Accommodation space,

[0068] W: wall,

[0069] G: groove,

[0070] Lp: power cord,

[0071] Vh: electric vehicles,

[0072] Lc: charging cable,

[0073] S3: Press the switch,

[0074] P: Power supply,

[0075] Pw: working power supply,

[0076] Tg: trigger,

[0077] Ps: power supply parameters,

[0078] Sv: voltage signal,

[0079] Si: current signal,

[0080] Sm: impedance signal,

[0081] Se: welding signal,

[0082] Sr: leakage signal,

[0083] St: temperature signal,

[0084] Sn: indicator signal,

[0085] PWM: Pulse width modulation signal. DETAILED DESCRIPTION

[0086] The technical content and detailed description of this application are described as follows with reference to the accompanying drawings:

[0087] See also Figure 2 This is a side view of the structure of the first embodiment of the seat type charging device of this application. Figure 1 The seat type charging device 100 of this application is Figure 1 The difference of the traditional charging device 100A is that the seat-type charging device 100 can be buried in the wall W so that the seat-type charging device 100 does not protrude from the wall W. In this way, in addition to making the wall W look beautiful, it also prevents the seat-type charging device 100 from falling off due to external forces such as collision and pulling, thereby avoiding the risk of falling and hitting the ground and being broken. Furthermore, the socket box SB is used to be embedded in the groove G of the wall W, and the socket box SB includes a through-hole H for the power cord Lp to pass through. The seat-type charging device 100 can be configured in the accommodating space A of the socket box SB, and the seat-type charging device 100 can be connected to the power cord Lp to transmit power P (generally AC power, but not limited to this). Among them, the seat-type charging device 100 can be fixed to the socket box SB by, for example, but not limited to, locking, but not limited to this.

[0088] The most basic structure of the docking charging device 100 may include a housing 1, a power port 2, a connection port 3, a controller 4 (eg, Figure 4 The housing 1 includes a power port 2 and a reset switch 5, and is insertable into the socket box SB and accommodated within the accommodating space A. The power port 2 is preferably located within the housing 1, adjacent to one side of the accommodating space A, and is connected to the power cable Lp to transmit power P. The connection port 3 is located on a side 100-1 of the housing 1 exposed to the wall W, and is used to connect one end of the charging cable Lc. The other end of the charging cable Lc can be connected to the electric vehicle Vh to transmit power P via the charging cable Lc. A controller 4 is located within the housing 1 and couples the power port 2 and the connection port 3. The controller 4 is primarily used to determine the operating mode of the charging and discharging device 100 for the electric vehicle Vh, including, but not limited to, a charging mode in which the charging device 100 charges the electric vehicle Vh, a discharging mode in which the electric vehicle Vh discharges the charging device 100, or a standby mode in which power P is temporarily not transmitted. The controller 4 then controls the operation of the charging device 100 based on the determined operating mode.

[0089] On the other hand, the controller 4 is mainly a controller with a power output locking function. When the controller 4 determines that a specific condition has occurred, it enters a locked state to prevent power transmission. The difference between the standby mode and the standby mode is that the standby mode mainly controls the standby charging device 100 to transmit power P to the electric vehicle Vh once a specific condition is met (for example, but not limited to, the communication between the standby charging device 100 and the electric vehicle Vh is completed, etc.). However, when the controller 4 enters the locked state, the electric vehicle Vh cannot be connected to the standby mode unless the charging cable Lc is reconnected or the electric vehicle Vh is reconnected. Figure 2 The locked state can be released by pressing the switch S3 shown, or resetting the power supply P (e.g., reconnecting the power port 2 to the power line Lp, or resetting the circuit breaker at the source of the power P). Otherwise, the controller 4 will no longer control the charging station 100 to transmit power P to the electric vehicle Vh. The specific conditions include, but are not limited to, the detection by the charging station 100 of abnormal conditions such as overvoltage, overcurrent, abnormal communication signals, or improper wiring.

[0090] The reset switch 5 is located on the side 100-1 of the housing 1 exposed to the wall W (i.e., on the same side as the connection port 3) and is coupled to the controller 4. The reset switch 5 is primarily used to unlock the controller 4 by triggering Tg when the controller 4 enters a locked state, replacing the unlocking method of reconnecting the charging cable Lc or the power port 2. Furthermore, after unlocking the controller 4, the controller 4 can reconfirm the operating mode and resume handshake communication with the electric vehicle Vh. Therefore, by using the reset switch 5 to unlock the controller 4, the present application can restore the controller 4 to normal operation by eliminating certain conditions without re-pressing the push switch S3 of the charging cable Lc or repeatedly plugging and unplugging the charging cable. This prevents damage or even failure of the charging cable Lc connector due to repeated plugging and unplugging of the charging cable Lc or excessively pressing the push switch S3. It also avoids the inconvenience of the user having to leave the docking station 100 to find the circuit breaker at the power source to reset the power supply. It is worth noting that, in one embodiment, the charging cable Lc includes a depressible push switch S3, which is a feature unique to certain types of charging cables Lc. However, this application does not limit the coupling to specific types of charging cables Lc. Therefore, any existing charging cables Lc of various brands and specifications can be used with the docking charging device 100 of this application.

[0091] See also Figure 3A This is the main view of the first embodiment of the seat-type charging device of this application, Figure 3B This is a diagram of the types of connection ports that can be configured for this application. Figure 2.exist Figure 3A In the embodiment, the docking charging device 100 may further include indicator lights 6-1 to 6-3, and the connection port 3, the reset switch 5 and the indicator lights 6-1 to 6-3 are disposed on a side 100-1 of the housing 1 exposed to the wall W. Figure 3A The connection port 3 can be configured as Figure 3B Therefore, the connection port 3 can be SAE J1772, IEC 62196 type 2 or other various types of connection ports 3, but due to the large number of types, only the types with higher market share are used as examples. Figure 3B The indicator lights 6-1 to 6-3 are coupled to the controller 4, and the controller 4 can control the indicator lights 6-1 to 6-3 to generate corresponding color lights according to the operating status. Among them, the number of indicator lights 6-1 to 6-3 is only for illustration, and it can be single or multiple.

[0092] When the indicator lights 6-1 to 6-3 are Figure 3A-3B For example, if there are three indicators, they preferably include a standby indicator 6-1 (e.g., but not limited to, emitting green light), a charging indicator 6-2 (e.g., but not limited to, emitting yellow light), and a fault indicator 6-3 (e.g., but not limited to, emitting red light). Thus, when the controller 4 enters the locked state, the fault indicator 6-3 can emit a corresponding color (i.e., red light) to intuitively inform the user that the charging station 100 is locked and that the reset switch 5 must be pressed to unlock it. Furthermore, if there is only one indicator 6-1 through 6-3, each indicator 6-1 through 6-3 can preferably be a multi-color emitting light device. This frees up space on the side 100-1 of the housing 1 exposed to the wall W for additional buttons, switches, and other devices. Furthermore, the reset switch 5 primarily provides a function similar to the aforementioned push switch S3, allowing the controller 4 to reconfirm the operating mode when in the locked state and re-communicate with the electric vehicle Vh to set parameters such as the charge and discharge current. The reset switch 5 may be a button type, a touch type, a finger-dip type, or other switches that may have on / off functions, and is not limited thereto.

[0093] See also Figure 4 This is the circuit block diagram of the seat type charging device of this application, and refer to Figures 2-3B .exist Figure 4In the docking charging device 100, a power line 7, an auxiliary power circuit 8, a switch SW, and a detection module 9 are also included. One end of the power line 7 is coupled to the power line Lp via the power port 2, and the other end of the power line 7 is coupled to the charging cable Lc to transmit power P. The power line 7 includes a live line L, a neutral line N, and a ground line PE. Furthermore, the term "transmission" refers to the bidirectional flow of power P, depending on whether the operating mode is charging or discharging. The auxiliary power circuit 8 is coupled to the power line 7 and converts the power P into a working power Pw, which is then provided to the controller 4 to power the controller 4. In this embodiment, a reset switch 5 couples the auxiliary power circuit 8 and the controller 4. Therefore, when the reset switch 5 is triggered Tg, it opens according to the trigger Tg, disconnecting the path from the auxiliary power circuit 8 to the controller 4 and cutting off the working power Pw. This can deprive the controller 4 of sufficient energy to maintain operation, causing it to enter undervoltage protection (UVP) mode or even shut down.

[0094] Then, after the reset switch 5 is disconnected, the reset switch 5 can be restored to the on state again according to the trigger Tg, or actively restored to the on state. Specifically, the user can disconnect the reset switch 5 by pressing the reset switch 5, and when the controller 4 does not have enough energy to maintain operation and causes it to enter the low voltage protection (UVP), the user can turn on the reset switch 5 by pressing the reset switch 5 again, so that the controller 4 receives the working power Pw again and restarts, and returns to the normal operation state. Alternatively, the reset switch 5 can be an active reset switch with a preset on state, and when the user presses the reset switch 5 and causes the reset switch 5 to be disconnected according to the trigger Tg, the reset switch 5 can actively return to the on state after a short period of time, so that the controller 4 receives the working power Pw again and restarts, and returns to the normal operation state. Finally, after the controller 4 restarts and returns to the normal operation state, the controller 4 can reconfirm the operating mode and resume handshake communication with the electric vehicle Vh.

[0095] The switch SW is disposed on the power line 7 and coupled to the controller 4, so that the controller can short-circuit or disconnect the power line 7 by turning the switch SW on or off. The detection module 9 is coupled to the power line 7 and the controller 4, and detects the power source P on the power line 7 to generate a power source parameter Ps. The controller 4 can selectively turn the switch SW on or off according to the power source parameter Ps, and when the power source parameter Ps is abnormal, the controller 4 disconnects the switch SW to disconnect the power line 7 to prevent the power source P from being transmitted. Furthermore, when the controller 4 disconnects the switch SW due to an abnormal power source parameter Ps, the controller 4 determines that a specific condition has occurred and enters a locked state. See also Figure 4The detection module 9 includes multiple detection circuits, which may include, for example but not limited to, a voltage detection circuit 90, a current detection circuit 92, a ground detection circuit 94, a welding detection circuit 96, a leakage detection circuit 98 and a temperature detection circuit 99. The temperature detection circuit 99 is coupled to the controller 4, and the voltage detection circuit 90, the current detection circuit 92, the ground detection circuit 94, the welding detection circuit 96 and the leakage detection circuit 98 are respectively coupled to the power line 7 and the controller 4.

[0096] The voltage detection circuit 90 detects the voltage from the power port 2 to the switch SW and generates a voltage signal Sv. The controller 4 uses the voltage signal Sv to determine whether the voltage on the power line 7 is normal. The current detection circuit 92 detects the current from the power port 2 to the switch SW and generates a current signal Si. The ground detection circuit 94 detects the ground impedance from the power port 2 to the switch SW and generates an impedance signal Sm. The controller 4 uses the impedance signal Sm to determine whether the grounding of the station-type charging device 100 is normal. The welding detection circuit 96 couples the power line 7 between the switch SW and the charging cable Lc and detects whether the switch SW is welding and generates a welding signal Se. The controller 4 uses the welding signal Se to determine whether the switch SW has been properly disconnected. The leakage detection circuit 98 couples the power line 7 between the switch SW and the charging cable Lc and detects whether leakage current is occurring on the power line 7. The leakage signal Sr is provided to the controller 4 to determine whether leakage current is occurring on the power line 7. The temperature detection circuit 99 detects the ambient temperature in the housing 1 and provides a temperature signal St. The controller 4 determines whether the ambient temperature in the housing 1 is too high according to the temperature signal St.

[0097] Therefore, the power supply parameter Ps may include a voltage signal Sv, a current signal Si, an impedance signal Sm, a welding signal Se, a leakage signal Sr, and a temperature signal St. The controller 4 determines whether to control the switch SW to be turned on or off based on these signals. Furthermore, the controller 4 can determine whether the power supply P on the power line 7 is experiencing overvoltage / undervoltage (OV), overcurrent (OC), grounding anomaly, contact welding, or leakage current based on the voltage signal Sv, current signal Si, impedance signal Sm, welding signal Se, and leakage signal Sr. Furthermore, the controller 4 can determine whether the ambient temperature within the housing 1 is experiencing an overtemperature (OT) condition based on the temperature signal St. If none of these conditions occur, the controller 4 can control the switch SW to be turned on after the handshake communication is completed, allowing the power supply P to be transmitted to the power line 7. Conversely, unless the contact is welded, the controller can control the switch SW to be turned off, disconnecting the power line 7 and preventing the power supply P from being transmitted. Furthermore, when contact welding occurs, the switch SW cannot be opened smoothly. Therefore, the controller 4 can automatically determine when a specific condition has occurred and enter a locked state to prevent the switch SW from being unable to open and the power supply P from continuing to be transmitted. The switch SW can be a switch consisting of two transistors connected in series or a bidirectional switching component such as a relay capable of bidirectional on / off switching. Furthermore, the switch SW can be driven on and off by, for example, but not limited to, a driver circuit Dr. However, if the switch SW does not require a driver circuit Dr, this component can be omitted.

[0098] Furthermore, since the seat-type charging device 100 of the present application is arranged in the accommodation space A configured in the socket box SB, rather than being inserted into the wall and protruding from the wall W, it is not easily affected by wind, sun, rain, etc. Therefore, the shaking resistance level, sun protection level and waterproof level of the seat-type charging device 100 can be greatly reduced. Conversely, since the above-mentioned levels are reduced, the volume of the seat-type charging device can be greatly reduced to achieve the effect of lightweighting and miniaturization. Furthermore, in addition to the effect of reducing the volume by reducing the above-mentioned levels, the present application also uses many miniaturized parts to replace the original components in order to achieve the effect of simple installation and product software updates.

[0099] For example, the present application uses a chip-type leakage detection circuit 98 to replace the current sensing coil, mainly because the current sensing coil, which occupies a larger volume, can be reduced to a circuit formed by a circuit or a chip, thereby significantly reducing the volume occupied by the current sensing coil. In addition, since the shaking resistance level of the seat-type charging device can be reduced, the present application can use a smaller relay. Moreover, under the condition of using a smaller relay, the heat generation is reduced by increasing the thickness of the copper sheet and the contact area inside the relay. Moreover, since the thickness of the copper sheet and the contact area are increased, the use of the welding detection circuit 96 to confirm whether the contact is welded can significantly reduce the situation where the power supply P is transmitted incorrectly. In addition, since the waterproof level of the seat-type charging device 100 can be reduced, the corresponding waterproof structure design can be simplified, so the overall volume of the present application can be significantly reduced.

[0100] Due to the aforementioned features, the seat-type charging device 100 of the present application can be reduced to a size roughly equivalent to that accommodated by a conventional outlet box (for example, but not limited to, 120*70mm, 118*74mm, etc.). This means that the socket typically housed in the outlet box SB can be replaced with the seat-type charging device 100 of the present application, replacing the space previously reserved for connecting conventional electrical appliances with a charging cable Lc. Consequently, the power density of the seat-type charging device 100 of the present application can be increased by over 300W / in³. Therefore, users can still use conventional charging connectors for charging without affecting the general user experience, thereby enhancing the compatibility of the seat-type charging device 100. Furthermore, since the seat-type charging device 100 has been reduced to fit within a conventional outlet box, the present seat-type charging device can be used with conventional outlet configurations, significantly reducing installation costs compared to previous installations that often required over NT$100,000.

[0101] See also Figure 4 , the seat-type charging device 100 also includes a proximity pilot line LP and a control pilot line LC, and the controller 4 can also provide an indication signal Sn to the indicator lights 6-1 to 6-3 to control the indicator lights 6-1 to 6-3 to generate corresponding colored light. The connection guide line LP couples the connection guide terminal PP and the ground wire PE, and the connection guide terminal PP is used to couple the electric vehicle Vh through the charging cable Lc, and for the electric vehicle Vh to confirm that the connection with the charging cable Lc is completed. Among them, the path of the connection guide line LP may include a circuit composed of electronic components and wiring (as shown in the dotted box in the figure). In addition, the circuit structure that can be implemented in this application can be referred to in conjunction with the following description. Figure 5A 、 5B To avoid ambiguity Figure 4The circuit structure within the dashed box is not detailed here. The control pilot circuit LC couples the control pilot terminal CP to the controller 4. The control pilot terminal CP is coupled to the electric vehicle Vh via the charging cable Lc. The controller 4 transmits a pulse-width modulation signal PWM to the electric vehicle Vh via the control pilot module CPM to confirm the available charging current. The controller 4 also determines the status of the electric vehicle Vh based on the voltage level of the pulse-width modulation signal PWM.

[0102] See also Figure 5A This is a circuit block diagram of the first embodiment of the connection guide circuit of this application, and refer to Figures 2-4 . The reset switch 5 couples the connection guide line LP and the connection guide terminal PP, and when the electric vehicle Vh is coupled to the charging cable Lc, the impedance of the connection guide terminal PP is changed to a first specific impedance, so that the electric vehicle Vh can confirm that the connection with the charging cable Lc is completed according to the first specific impedance. In some specific charging devices, in addition to coupling the electric vehicle Vh to the charging cable Lc, the user needs to press the press switch S3 to temporarily change the impedance of the connection guide terminal PP from the first specific impedance to the second specific impedance, and then return to the first specific impedance, so that the electric vehicle Vh can confirm that the connection with the charging cable Lc is completed. In other specific charging devices, the connection guide terminal PP is also coupled to the controller 4, so that the controller can actively adjust the impedance of the connection guide terminal PP so that the electric vehicle Vh can confirm additional parameters (such as but not limited to operating modes, etc.) in addition to confirming that the connection with the charging cable Lc is completed. However, in order to avoid blurring the characteristics of the present application, only the most basic circuit architecture is described in detail here.

[0103] Specifically, when the reset switch 5 is triggered Tg, it opens according to the trigger Tg, changing the circuit coupling relationship between the pilot terminal PP and the ground line PE. After the reset switch 5 is opened, it can be reset to the on state again according to the trigger Tg, or it can be automatically reset to the on state. Therefore, when the reset switch 5 is triggered Tg, the impedance between the pilot terminal PP and the ground line PE changes from the first specific impedance to the second specific impedance. Because the impedance between the pilot terminal PP and the ground line PE changes to the second specific impedance, the electric vehicle Vh confirms that it is not connected to the charging cable Lc based on the second specific impedance, interrupting its communication with the controller 4 and thereby terminating the charging or discharging operation of the power source P. Furthermore, after the operation is interrupted, the user can press the reset switch 5 again to turn it on, returning the impedance between the pilot terminal PP and the ground line PE from the second specific impedance to the first specific impedance.

[0104] Alternatively, the reset switch 5 can be an active reset switch with a preset on state. When the user presses the reset switch 5, causing it to turn off according to trigger Tg, the reset switch 5 can automatically return to the on state after a short period of time. Therefore, the impedance connecting the lead terminal PP to the ground line PE can change from a first specific impedance to a second specific impedance, and then return to the first specific impedance. This allows the electric vehicle Vh to reconfirm whether it is connected to the charging cable Lc. Once the connection is confirmed, the controller 4 can reconfirm the operating mode and resume handshake communication with the electric vehicle Vh.

[0105] It is worth mentioning that, in one embodiment, the circuit coupling relationship between the guide terminal PP and the ground line PE can be changed by resetting the switch 5 so as to change its impedance. Figure 5A As shown, the reset switch 5 is preferably coupled to a voltage divider circuit RX to implement the impedance change technique, but the voltage divider circuit is not limiting. Therefore, any component or circuit that can change the connection between the guide terminal PP and the ground line PE by turning the reset switch 5 on or off (such as, but not limited to, a rotary switch in combination with a variable resistor, an optocoupler voltage divider, etc.) is included within the scope of this embodiment. For example, the voltage divider circuit RX includes a first resistor RA and a second resistor RB. The connection between the guide terminal PP and the ground line PE includes the first resistor RA and the second resistor RB connected in series, and the reset switch 5 is connected in parallel with the second resistor RB.

[0106] When the reset switch 5 is turned on, the connecting guide terminal PP is coupled to the ground line PE through the first resistor RA and the reset switch 5. Therefore, the impedance of the connecting guide terminal PP is the resistance value of the first resistor RA. Therefore, when the reset switch 5 is turned on, the connecting guide terminal PP provides a first specific impedance based on the first resistor RA. Conversely, when the reset switch 5 is turned off, the connecting guide terminal PP is coupled to the ground line PE through the first resistor RA and the second resistor RB. Therefore, the impedance of the connecting guide terminal PP is the resistance value of the first resistor RA plus the resistance value of the second resistor RB. Therefore, when the reset switch 5 is turned off, the connecting guide terminal PP provides a second specific impedance based on the first resistor RA and the second resistor RB. In this way, the electric vehicle Vh can confirm its connection status with the charging cable Lc based on the impedance difference between the first specific impedance and the second specific impedance.

[0107] Also refer to Figure 5AThe connecting guide line LP also includes a temperature protection device TP to prevent poor contact and excessive temperature rise. The temperature protection device TP is coupled in series with the connecting guide terminal PP and the voltage divider circuit RX. Its temperature resistance is proportional to the ambient temperature surrounding the connecting guide terminal PP. It is a positive temperature coefficient protection device (such as, but not limited to, a positive temperature coefficient protection resistor (PTR) or a temperature protector that automatically switches on and off). For example, if the temperature protection device is a positive temperature coefficient protection resistor (PTR), when the ambient temperature surrounding the connecting guide terminal PP is too high, the resistance of the temperature protection device TP (i.e., the PTC resistor) increases (assuming that when the resistance is too high, the voltage potential on the connecting guide terminal PP is considered floating), causing the controller 4 to determine that the charging cable Lc connection is abnormal (i.e., a specific condition has occurred), thereby interrupting the power supply P. Conversely, when the ambient temperature returns to a preset operating range, the temperature protection device TP (i.e., the PTC resistor) returns to its normal resistance value, allowing the controller 4 to determine that the connection to the connecting guide terminal PP is normal, and power supply P automatically resumes transmission.

[0108] Alternatively, if the positive temperature coefficient protection device is a temperature protector that automatically switches on and off, then when the ambient temperature around the connection lead PP is excessively high, the temperature protector switches off, causing the voltage on the connection lead PP to float. This allows the controller 4 to determine that a connection anomaly with the charging cable Lc has occurred (i.e., a specific condition has occurred), thereby interrupting power transmission from P. Conversely, when the ambient temperature returns to a pre-set operating range, the temperature protector switches on, allowing the controller 4 to determine that the connection to the connection lead PP is normal, and power transmission from P automatically resumes.

[0109] See also Figure 5B This is a circuit block diagram of the second embodiment of the connection guide circuit of this application, and refer to Figures 2-5A . Figure 5B The connection guide line LP and Figure 5A Similar, the difference is Figure 5B The temperature protection device TP and Figure 5A Specifically, Figure 5BA temperature protection device TP is connected in parallel with the voltage divider circuit RX, and its temperature resistance is inversely proportional to the ambient temperature surrounding the connecting lead terminal PP. This device is a negative temperature coefficient protection device (e.g., but not limited to, a negative temperature coefficient protection resistor or a temperature protector that automatically switches on and off). For example, when the ambient temperature surrounding the connecting lead terminal PP is too high, the resistance of the temperature protection device TP (i.e., the negative temperature coefficient protection resistor) decreases (assuming it is too low, the connecting lead terminal PP is directly coupled to the ground line PE, causing its voltage potential to approach 0V, thus being considered ground). This causes the controller 4 to determine that an abnormality has occurred in the connection of the charging cable Lc (i.e., a specific condition has occurred), thereby interrupting the transmission of power P. Conversely, when the ambient temperature returns to a pre-set operating range, the resistance of the temperature protection device TP (i.e., the negative temperature coefficient protection resistor) returns to its normal value, allowing the controller 4 to determine that the connection to the connecting lead terminal PP is normal, and power P automatically resumes transmission. It is worth mentioning that, in one embodiment, if the negative temperature coefficient protection device is a temperature protector that can automatically turn on or off, its on / off logic is similar to Figure 5A , and the operation is similar to Figure 5A The temperature protector is not described here. Figure 5B The circuits, coupling relationships and operation methods not described are similar to those of Figure 5A , I will not elaborate on it here.

[0110] See also Figure 6 This is a side view of the second embodiment of the seat-type charging device of this application, and refer to Figures 2-5B . Figure 6 and Figure 2 The difference of the seat type charging device 100 is that Figure 6 The seat-type charging device 100 further includes a fixing frame 200 and a cover 300. The fixing frame 200 is used to securely connect to the socket cassette SB, and the fixing frame 200 can be secured to the housing 1 of the seat-type charging device 100 through methods such as, but not limited to, snapping or locking. Therefore, the fixing frame 200 can be used to secure the housing 1 of the seat-type charging device 100 to the socket cassette SB, and by snapping the fixing frame 200 onto the surface of the wall W, one side 100-1 of the housing 1 is exposed to the wall W. Furthermore, when the charging cable Lc is plugged into the seat-type charging device 100, the seat-type charging device 100, being secured to the socket cassette SB, will not be retracted inward into the socket cassette SB due to external forces.

[0111] The cover 300 is pivotally connected to the fixed frame 200, and the cover 300 can be axially rotated by being pivotally connected to the fixed frame 200, so that it can just cover the seat-type charging device 100, exposing one side 100-1 of the wall W. Preferably, the material of the cover 300 can be a light-transmitting material to allow the colored light generated by the indicator lights 6-1 to 6-3 to penetrate. In this way, the user does not need to lift the cover 300 to confirm the operating status of the seat-type charging device 100 through the indicator lights 6-1 to 6-3. In addition, the cover 300 is used to provide the seat-type charging device 100 with dustproof protection, avoiding rain and accidental human touch, etc. Therefore, the seat-type charging device 100 of the present application can achieve a protection level of IP44 or above and reduce its maintenance probability. It is worth mentioning that in one embodiment, Figure 6 The circuits, coupling relationships and operations not described are similar to those in Figure 2 , I will not elaborate on this. Figures 2 to 6 As mentioned above, compared to Figure 1 Compared with the prior art, the dock-type charging device 100 of the present application does not have problems such as accidental falling, taking up space, being squeezed by foreign objects, being exposed to the sun, being too heavy, being difficult to install, etc., thereby greatly improving the convenience of use.

[0112] However, the above description is only a detailed description and drawings of the preferred specific embodiments of the present application. The features of the present application are not limited thereto and are not intended to limit the present application. The entire scope of the present application shall be subject to the following patent application scope. All embodiments that are in line with the spirit of the patent application scope of the present application and similar variations thereof shall be included in the scope of the present application. Any changes or modifications that can be easily conceived by a person skilled in the art within the scope of the present application shall be covered by the following patent scope of the present case.

Claims

1. A seat-type charging device, arranged in a receiving space of a socket box, and the socket box is used to be embedded in a wall, wherein: The seat-type charging device includes: A power port coupled to a power cord passing through the socket box; a connection port, disposed on a side of the seat-type charging device exposed to the wall, and used for connecting a charging cable for charging and discharging an electric vehicle; A controller is coupled to the power port and the connection port and is used to confirm an operation mode of the seat-type charging device for charging and discharging the electric vehicle.

2. The seat-type charging device according to claim 1, wherein: Also includes: a reset switch, disposed on the same surface as the connection port and coupled to the controller; The controller is used to enter a locked state when a specific condition occurs, and the reset switch is used to release the locked state according to a trigger, so that the controller can re-confirm the operation mode.

3. The seat-type charging device according to claim 2, wherein: Also includes: a power line coupling the power port and the charging cable to transmit power; and an auxiliary power supply circuit coupled to the power line and converting the power into a working power supply to power the controller; The reset switch is coupled to the auxiliary power circuit and the controller, and cuts off the working power according to the trigger to restart the controller and re-determine the operation mode.

4. The seat-type charging device according to claim 3, wherein: Also includes: a switch, disposed on the power line; a detection module coupled to the power line and the controller, and detecting the power supply to generate a power parameter; The controller controls the switch to be conductive or non-conductive according to the power supply parameter.

5. The seat-type charging device according to claim 4, wherein: The detection module includes: A welding detection circuit is coupled to the power line and the controller, and the controller determines whether the switch can be correctly disconnected according to a welding detection signal.

6. The seat-type charging device according to claim 2, wherein: Also includes: a connection guide end coupled to the reset switch and used to couple to the electric vehicle through the charging cable to provide a first specific impedance for the electric vehicle to confirm that the connection with the charging cable is complete; The reset switch changes the first specific impedance to a second specific impedance according to the trigger, so that the electric vehicle can reconfirm whether the connection with the charging cable is completed, so that the controller can re-determine the operation mode accordingly.

7. The seat-type charging device according to claim 6, wherein: Also includes: a voltage divider circuit coupled to the connecting guide terminal and comprising a first resistor and a second resistor connected in series; The reset switch is connected in parallel with the second resistor to provide the first specific impedance according to the first resistor when the reset switch is turned on, and to provide the second specific impedance according to the first resistor and the second resistor when the reset switch is turned off.

8. The seat-type charging device according to claim 7, wherein: Also includes: A temperature protection device is coupled in series with the connection guide terminal and the voltage divider circuit, and a temperature impedance of the temperature protection device is proportional to an ambient temperature, so that the controller can determine that the specific condition occurs according to the excessive temperature impedance.

9. The seat-type charging device according to claim 8, wherein: The temperature protection device is a positive temperature coefficient protection resistor or a temperature protector.

10. The seat-type charging device according to claim 7, wherein: Also includes: A temperature protection device is connected in parallel to the voltage divider circuit, and a temperature impedance of the temperature protection device is inversely proportional to an ambient temperature, so that the controller can determine that the specific condition occurs according to the temperature impedance being too low.

11. The seat-type charging device according to claim 10, wherein: The temperature protection device is a negative temperature coefficient protection resistor or a temperature protector.

12. The seat-type charging device according to claim 2, wherein: Also includes: an indicator light coupled to the controller and configured to generate a corresponding color light according to the operation mode; The connection port, the reset switch and the indicator light are arranged in the seat-type charging device and exposed on one side of the wall.

13. The seat-type charging device according to claim 12, wherein: Also includes: a fixing frame for fixing a housing of the seat-type charging device to the socket box; and A cover body is pivotally connected to the fixed frame to rotate relative to the axis and covers the seat type charging device to expose one side of the wall.

14. The seat-type charging device according to claim 13, wherein: The cover is made of a light-transmitting material to allow the colored light generated by the indicator light to pass through.

15. The seat-type charging device according to claim 2, wherein: The reset switch is an active reset switch with a preset conduction state, and the reset switch actively returns to the conduction state after being disconnected according to the trigger.

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