Central control screen charging base and power management system
By designing the central control screen charging base and power management system, combining the main control module and switch circuit, the problems of high cost and poor compatibility in the existing technology are solved, and a charging system suitable for traditional central control screens and multiple charging voltages is realized. , reduces costs and improves compatibility.
Patent Information
- Application Number
- CN202323540385.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The movable charging solution of the existing central control screen is relatively expensive and is incompatible with the traditional central control screen, and cannot meet the needs of multiple charging voltages.
A central control screen charging base and power management system were designed, including PCBA motherboard, Type-C charging port, lithium battery pack, back rack and hook, combined with main control module, PD trick chip and switch circuit to achieve fast charging The function of power regulation and adapting to different charging voltages.
It reduces costs, is suitable for traditional hanging central control screens, and can adjust the charging current to adapt to different voltage central control screens, improving the compatibility and flexibility of the charging system.
Smart Images
Figure CN222262185U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of central control screen charging, and specifically to a central control screen charging base and a power management system. Background Art
[0002] Currently, the central control screens of smart homes are basically wall-mounted. In order to meet the needs of trial production applications, some manufacturers have begun to use movable central control screens. Currently, the mainstream mobile central control screens adopt a tablet-like solution. The central control screen itself has a battery, and then a bracket is used to support the central control screen, or the bracket is integrated with a power adapter to charge the central control screen.
[0003] The above methods actually all adopt the thinking mode of tablet computer plus base to realize the mobility requirement of central control screen, but this method is more expensive than traditional central control screen and is not compatible with traditional central control screen. Based on this, we propose a central control screen charging base and power management system. Utility Model Content
[0004] The purpose of the utility model is to provide a central control screen charging base and a power management system to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a central control screen charging base, comprising a lower shell with an opening on the left side, a light-guiding plastic part, a back hanger, a PCBA mainboard and a bracket cover, three first mounting threaded caps are integrally arranged on the top of the right inner wall of the lower shell from front to back, four second mounting threaded caps are integrally arranged on the right inner wall of the lower shell in a rectangular array, and four third mounting threaded caps are also integrally arranged on the right inner wall of the lower shell in a rectangular array, the left ends of the three first mounting threaded caps fix the back hanger in the lower shell by three self-tapping screws, the left ends of the four second mounting threaded caps fix the PCBA mainboard in the lower shell by four self-tapping screws, and the left ends of the four third mounting threaded caps fix the bracket cover to the left side of the lower shell by four self-tapping screws;
[0006] A light and a Type-C charging port are fixed and electrically installed on the right side of the PCBA motherboard. The front end of the Type-C charging port passes through the front inner wall of the lower shell and is flush with the front side of the lower shell. The light-guiding plastic part is installed and fixed on the front inner wall of the lower shell and cooperates with the light. The front side of the light-guiding plastic part cooperates with a light outlet opened on the front side of the lower shell. A central control screen host interface is fixed and electrically installed on the left side of the PCBA motherboard. The left end of the central control screen host interface is flush with the left side of the bracket cover. A lithium battery pack that powers the PCBA motherboard is also fixed inside the lower shell.
[0007] Preferably, anti-skid pads are bonded and fixed to both sides of the bottom of the lower shell, and a magnet is fixed to the front inner wall and the rear inner wall of the lower shell, and the two magnets are located on the right side of the bracket cover.
[0008] Preferably, a plurality of heat dissipation holes are reserved at the front lower portion and the rear lower portion of the lower shell.
[0009] Preferably, two hooks are integrally provided on the top left side of the back hanger, and two hook reserved through-holes cooperating with the hooks are opened on the left side of the bracket upper cover, the hooks pass through the entire hook reserved through-holes and extend to the lower left side of the bracket upper cover.
[0010] Preferably, a threaded hole matching with a corresponding self-tapping screw thread is reserved at the left end of the first mounting threaded cap, the left end of the second mounting threaded cap and the left end of the third mounting threaded cap.
[0011] The utility model proposes a power management system for a central control screen charging base, including a main control module installed on a PCBA mainboard, a power supply end of the main control module being electrically connected to a lithium battery pack, the main control module being also electrically connected to a PD deception chip installed on the PCBA mainboard and a switch circuit installed on the PCBA mainboard, the power supply end of the PD deception chip being electrically connected to the switch circuit, and the voltage output end of the PD deception chip being electrically connected to a central control screen host interface, and the switch circuit being electrically connected to a Type-C charging port.
[0012] Preferably, the switching circuit includes a MOS field effect transistor Q2 and a transistor Q1, the drain of the MOS field effect transistor Q2 is electrically connected to one end of a resistor R4, the other end of the resistor R4 is electrically connected to the main control module, the source of the MOS field effect transistor Q2 is grounded, the gate of the MOS field effect transistor Q2 is electrically connected to one end of a resistor R3 and a collector of the transistor Q1, the other end of the resistor R3 is electrically connected to the Type-C charging port, the emitter of the transistor Q1 is grounded, the base of the transistor Q1 is electrically connected to one end of the resistor R2 and one end of the resistor R1, the other end of the resistor R2 is grounded, and the other end of the resistor R1 is also electrically connected to the Type-C charging port.
[0013] Preferably, the main control module is also electrically connected to a monitoring module for monitoring the charging status and battery power.
[0014] Compared with the prior art, the utility model arranges the PCBA mainboard, the central control screen host interface, the Type-C charging port and the lithium battery pack on the charging base, and cooperates with the two hooks on the back rack, so that the charging base can be suitable for the traditional hanging central control screen. In addition, through the coordination of the main control module, PD decoy chip, switch circuit, central control screen host interface and Type-C charging port on the PCBA mainboard, the charging base can adjust the fast charging power, so that it is suitable for central control screens with different charging voltages and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a three-dimensional structural schematic diagram of a central control screen charging base proposed by the utility model;
[0016] Figure 2 This is a schematic diagram of the exploded structure of a central control screen charging base proposed by the utility model;
[0017] Figure 3 This is a system block diagram of a power management system for a central control screen charging base proposed by the utility model;
[0018] Figure 4 for Figure 3 Circuit diagram of the switching circuit in .
[0019] In the figure: 1. Lower shell; 101. First mounting threaded cap; 102. Second mounting threaded cap; 103. Third mounting threaded cap; 104. Heat dissipation hole; 2. Anti-slip pad; 3. Light-guiding plastic part; 4. Back hanger; 401. Hook; 5. PCBA motherboard; 501. Central control screen host interface; 502. Type-C charging port; 6. Magnet; 7. Bracket cover; 8. Lithium battery pack. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] like Figure 1 to Figure 2As shown, a central control screen charging base proposed in this embodiment includes a lower shell 1 with an opening on the left, a light-guiding plastic part 3, a back hanger 4, a PCBA mainboard 5 and a bracket upper cover 7. Three first mounting threaded caps 101 are integrally arranged on the top of the right inner wall of the lower shell 1 from front to back, four second mounting threaded caps 102 are integrally arranged on the right inner wall of the lower shell 1 in a rectangular array, and four third mounting threaded caps 103 are also integrally arranged on the right inner wall of the lower shell 1 in a rectangular array. The left ends of the three first mounting threaded caps 101 fix the back hanger 4 in the lower shell 1 through three self-tapping screws, the left ends of the four second mounting threaded caps 102 fix the PCBA mainboard 5 in the lower shell 1 through four self-tapping screws, and the left ends of the four third mounting threaded caps 103 are integrally arranged on the right inner wall of the lower shell 1 through four self-tapping screws. The bracket cover 7 is fixedly installed on the left side of the lower shell 1 by tapping screws, wherein the left end of the first mounting threaded cap 101, the left end of the second mounting threaded cap 102 and the left end of the third mounting threaded cap 103 are each reserved with a threaded hole that matches the corresponding self-tapping screw thread, and a plurality of heat dissipation through-holes 104 are reserved at the front lower part and the rear lower part of the lower shell 1, and anti-slip pads 2 are bonded and fixed on both sides of the bottom of the lower shell 1, and a magnet 6 is fixed on the front inner wall and the rear inner wall of the lower shell 1, and the two magnets 6 are both located on the right side of the bracket cover 7, and two hooks 401 are integrally provided on the left top of the back hanger 4, and two hook reserved through-holes matching the hooks 401 are opened on the left side of the bracket cover 7, and the hook 401 runs through the entire hook reserved through-hole and extends to the lower left side of the bracket cover 7;
[0022] A light and a Type-C charging port 502 are fixed and electrically installed on the right side of the PCBA motherboard 5. The front end of the Type-C charging port 502 passes through the front inner wall of the lower shell 1 and is flush with the front side of the lower shell 1. The light guide plastic part 3 is installed and fixed on the front inner wall of the lower shell 1 and cooperates with the light. The front side of the light guide plastic part 3 cooperates with a light outlet opened on the front side of the lower shell 1. A central control screen host interface 501 is fixed and electrically installed on the left side of the PCBA motherboard 5. The left end of the central control screen host interface 501 is flush with the left side of the bracket cover 7. A lithium battery pack 8 for powering the PCBA motherboard 5 is also fixed inside the lower shell 1. The utility model arranges the PCBA motherboard 5, the central control screen host interface 501, the Type-C charging port 502 and the lithium battery pack 8 on the charging base, and then cooperates with the two hooks 401 on the back bracket 4, so that the charging base can be suitable for a traditional hanging central control screen.
[0023] refer to Figure 3-4The utility model proposes a power management system for a central control screen charging base, including a main control module installed on a PCBA mainboard 5, a power supply end of the main control module being electrically connected to a lithium battery pack 8, and a monitoring module for monitoring a charging state and a battery power level being electrically connected to the main control module, and a PD deception chip installed on the PCBA mainboard 5 and a switch circuit installed on the PCBA mainboard 5 being electrically connected to the main control module, a power supply end of the PD deception chip being electrically connected to the switch circuit, and a voltage output end of the PD deception chip being electrically connected to a central control screen host interface 501, and a switch circuit being electrically connected to a Type-C charging port 502;
[0024] The switch circuit includes a MOS field effect transistor Q2 and a transistor Q1, the drain of the MOS field effect transistor Q2 is electrically connected to one end of a resistor R4, the other end of the resistor R4 is electrically connected to the main control module, the source of the MOS field effect transistor Q2 is grounded, the gate of the MOS field effect transistor Q2 is electrically connected to one end of a resistor R3 and a collector of the transistor Q1, the other end of the resistor R3 is electrically connected to the Type-C charging port 502, the emitter of the transistor Q1 is grounded, the base of the transistor Q1 is electrically connected to one end of the resistor R2 and one end of the resistor R1, the other end of the resistor R2 is grounded, and the other end of the resistor R1 is also electrically connected to the Type-C charging port 502. The voltage connected to the e-C charging port 502 is transmitted to the resistor R1, so that the MOS field effect tube Q2 is turned on, and finally the resistor R4 is connected to the circuit to achieve the purpose of adjusting the charging current. If there are multiple switch circuits, and the parameters of the resistors R1 and R2 in each switch circuit are different, dynamic adjustment of different voltages corresponding to different charging currents can be achieved. The utility model cooperates with the main control module, PD decoy chip, switch circuit, central control screen host interface 501 and Type-C charging port 502 on the PCBA motherboard 5, so that the charging base can adjust the fast charging power, so that it is suitable for central control screens with different charging voltages and reduces costs.
[0025] The method of using this embodiment is as follows: the PCBA mainboard 5, the central control screen host interface 501, the Type-C charging port 502 and the lithium battery pack 8 are all arranged on the charging base, and then the two hooks 401 on the back hanger 4 are matched, so that the charging base can be applied to the traditional hanging central control screen;
[0026] In addition, through the cooperation of the main control module, PD decoy chip, switch circuit, central control screen host interface 501 and Type-C charging port 502 on the PCBA mainboard 5, the circuit parameters of the switch circuit are dynamically adjusted in combination with the resistor R4 in the switch circuit, and then the adjustment of the resistor R1 and the resistor R2 is combined to realize the conduction of the transistor Q1 at different voltage values, so that the charging base can adjust the fast charging power, so as to be suitable for central control screens with different charging voltages and reduce costs.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A central control screen charging base, comprising a lower shell (1) with an opening on the left side, a light guide plastic part (3), a back hanger (4), a PCBA mainboard (5) and a bracket upper cover (7), characterized in that: The top of the right inner wall of the lower shell (1) is integrally provided with three first mounting threaded caps (101) from front to back, the right inner wall of the lower shell (1) is integrally provided with four second mounting threaded caps (102) in a rectangular array, and the right inner wall of the lower shell (1) is also integrally provided with four third mounting threaded caps (103) in a rectangular array, the left ends of the three first mounting threaded caps (101) are used to fix the back hanger (4) in the lower shell (1) by three self-tapping screws, the left ends of the four second mounting threaded caps (102) are used to fix the PCBA mainboard (5) in the lower shell (1) by four self-tapping screws, and the left ends of the four third mounting threaded caps (103) are used to fix the bracket cover (7) on the left side of the lower shell (1) by four self-tapping screws; A light and a Type-C charging port (502) are fixed and electrically mounted on the right side of the PCBA mainboard (5); the front end of the Type-C charging port (502) penetrates the front inner wall of the lower shell (1) and is flush with the front side of the lower shell (1); the light guide plastic part (3) is fixed to the front inner wall of the lower shell (1) and cooperates with the light; the front side of the light guide plastic part (3) cooperates with a light outlet opened on the front side of the lower shell (1); a central control screen host interface (501) is fixed and electrically mounted on the left side of the PCBA mainboard (5); the left end of the central control screen host interface (501) is flush with the left side of the bracket upper cover (7); and a lithium battery pack (8) for supplying power to the PCBA mainboard (5) is also fixed inside the lower shell (1).
2. The central control screen charging base according to claim 1, characterized in that: Anti-skid pads (2) are bonded and fixed to both sides of the bottom of the lower shell (1), and a magnet (6) is fixed to the front inner wall and the rear inner wall of the lower shell (1). The two magnets (6) are located on the right side of the bracket cover (7).
3. The central control screen charging base according to claim 1, characterized in that: A plurality of heat dissipation through holes (104) are reserved at the front lower portion and the rear lower portion of the lower shell (1).
4. The central control screen charging base according to claim 1, characterized in that: The left top of the back hanger (4) is integrally provided with two hooks (401), and the left side of the bracket cover (7) is provided with two hook reserved through-holes matching with the hooks (401), and the hooks (401) pass through the entire hook reserved through-holes and extend to the lower left side of the bracket cover (7).
5. The central control screen charging base according to claim 1, characterized in that: The left end of the first mounting threaded cap (101), the left end of the second mounting threaded cap (102) and the left end of the third mounting threaded cap (103) are all reserved with a threaded hole that matches the corresponding self-tapping screw thread.
6. A power management system for a central control screen charging base according to any one of claims 1 to 5, characterized in that: The invention comprises a main control module installed on a PCBA mainboard (5), a power supply end of the main control module being electrically connected to a lithium battery pack (8), the main control module being also electrically connected to a PD deception chip installed on the PCBA mainboard (5) and a switch circuit installed on the PCBA mainboard (5), the power supply end of the PD deception chip being electrically connected to the switch circuit, and the voltage output end of the PD deception chip being electrically connected to a central control screen host interface (501), and the switch circuit being electrically connected to a Type-C charging port (502).
7. The power management system of the central control screen charging base according to claim 6 is characterized by: The switch circuit comprises a MOS field effect transistor Q2 and a transistor Q1, the drain of the MOS field effect transistor Q2 is electrically connected to one end of a resistor R4, the other end of the resistor R4 is electrically connected to a main control module, the source of the MOS field effect transistor Q2 is grounded, the gate of the MOS field effect transistor Q2 is electrically connected to one end of a resistor R3 and a collector of the transistor Q1, the other end of the resistor R3 is electrically connected to a Type-C charging port (502), the emitter of the transistor Q1 is grounded, the base of the transistor Q1 is electrically connected to one end of the resistor R2 and one end of the resistor R1, the other end of the resistor R2 is grounded, and the other end of the resistor R1 is also electrically connected to the Type-C charging port (502).
8. The power management system of the central control screen charging base according to claim 6 is characterized by: The main control module is also electrically connected to a monitoring module for monitoring the charging state and battery power.