Bidirectional power acquisition digital display adapter

Abstract

The utility model relates to the field of connectors, in particular to a bidirectional power acquisition digital display adapter, which comprises a body and a limiting piece, an open structure for a circuit board to enter is formed at one end of the body, connecting ports for terminal electric signal transmission are arranged at two ends of the circuit board, the limiting piece is provided with first openings corresponding to the connecting ports, and the limiting piece is provided with second openings corresponding to the connecting ports. After the limiting piece is welded in the open structure through ultrasonic waves, the connecting port penetrates through the first opening and is located outside the body, and a second opening formed in the other end of the body is matched with a connecting port in the other end of the circuit board. Ultrasonic welding is used for replacing a traditional gluing fixing mode, according to the mode that the limiting piece and the body are connected through high-frequency vibration energy, materials are fused on the basis of friction heating, a firm connection relation is formed between molecules after rapid cooling, and the overflow problem can be solved by replacing a glue bonding mode; the welding strength is higher than that of glue connection, and the connection stability is naturally and remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of mutual conversion of double connectors, in particular to a bidirectional power acquisition digital display adapter. Background Art

[0002] Adapters, such as patent number 201610168680.7, are named mobile phone USB adapters. This type of adapter mainly takes into account the transmission of electrical signals of different types of interfaces, and can also power the device, for example, Type A-Micro USB interface, or Type A-Type C, Type A-Lightning, etc. There are also more commonly used connectors in other fields, such as DC-DC connectors, where DC refers to the DC head of the power interface type.

[0003] The structure of this kind of USB adapter is that the adapter body is composed of a circuit board and a shell. However, the circuit board is fixed in the shell by means of glue injection by an injection molding machine. During the glue injection process, pressure is generated, which is particularly prone to various problems such as a large mold gap, shell deformation, and component damage. In particular, the display screen on the circuit board is easily damaged, and there are also problems such as poor ventilation and heat dissipation inside the shell. Not only does it lead to a low output yield, it will also indirectly affect the appearance of the adapter. In addition, it will also attract dust and affect the service life of the product. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a bidirectional power acquisition digital display adapter, which aims to solve the problems of low production efficiency, improve output yield, enhance product appearance, and heat dissipation effect.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a bidirectional power acquisition digital display adapter, comprising a main body, characterized in that it also comprises a limiting piece, one end of the main body forms an open structure for a circuit board to enter the interior, and both ends of the circuit board are provided with connector ports for transmitting terminal electrical signals, the limiting piece has a first opening corresponding to the connection port, after the limiting piece is ultrasonically welded in the open structure, the connection port passes through the first opening and is located outside the main body, and the other end of the main body is provided with a second opening to adapt to the connection port on the other end of the circuit board.

[0006] Furthermore, the connection port is one of the male or female connectors of Type C, USB-A, USB-B, lightning, and DC.

[0007] Furthermore, the main body is made of PC black glossy translucent material, and the circuit board is provided with an LED display control chip and an LED digital screen, and the charging power and other marks are displayed through the LED digital screen.

[0008] Furthermore, a detection circuit for controlling the LED digital screen and the power collection chip is provided on the circuit board, and a recognizable charging value display pattern is formed by controlling the cutoff and conduction of the LED digital screen.

[0009] Furthermore, the detection circuit includes a detection operation unit, a sampling resistor connected in series with a connection port, and the connection port is coupled to the detection operation unit through a voltage divider resistor, an input pin on the detection operation unit is coupled to both ends of the sampling resistor, and the detection operation unit converts a corresponding electrical signal to the LED digital screen according to the collected voltage value and current value.

[0010] Furthermore, an LDO module is included. The LDO module is coupled to the detection operation unit, and the LDO module provides a stepped-down working voltage to the detection operation unit.

[0011] Furthermore, it also includes a current limiting resistor, the sampling resistor is connected in series to the negative pole in the loop between the connectors, and the current passes through the sampling resistor and the current limiting resistor in sequence and is coupled to the detection operation unit.

[0012] Furthermore, at least two voltage-dividing resistors are provided, the voltage-dividing resistors are coupled to each other, at least one voltage-dividing resistor is connected to the detection operation unit, and the other voltage-dividing resistor is grounded.

[0013] Furthermore, an input capacitor and an output capacitor are coupled to the input and output ports of the LDO module respectively.

[0014] Beneficial effects of the utility model:

[0015] The utility model adopts the connection method of ultrasonic welding, which mainly replaces the use of injection molding machines and avoids applying external pressure to the two-way power acquisition digital display adapter in the process of producing the two-way power acquisition digital display adapter. Therefore, it can avoid a series of situations such as shell deformation, large mold gap, and crushing of components. In addition, after using ultrasonic welding, there is no need to use glue for bonding, which solves the problem of glue overflow.

[0016] In addition, after eliminating the use of glue, after this ultrasonic welding assembly, there is a gap between the space inside the shell and the circuit board, the components on the circuit board are not in direct contact with the shell, and the air flow takes away the heat on the components. In addition, in the case of having a gap, high-power operation will not cause a large amount of heat to be stored on the surface of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an explosion schematic diagram of the utility model.

[0018] Figure 2 It is a stereogram of the utility model.

[0019] Figure 3 yes Figure 2 Another perspective view.

[0020] Figure 4 is a circuit diagram of a detection circuit. DETAILED DESCRIPTION

[0021] In the specification, references to "one embodiment", "an embodiment" or "some embodiments" mean that a particular feature, structure or element described with reference to the embodiment is included in at least one embodiment of the subject matter being described. Thus, sentences in the specification saying "in one embodiment" or "in an embodiment" or "in some embodiments" do not necessarily refer to the same embodiment or embodiments. The particular features, structures or elements may be further combined in any embodiment in a suitable manner.

[0022] In order to fully explain the technical solution of the present invention, further specific description is given in combination with the Type C-Type C bidirectional adapter in this specific embodiment. Of course, this is only an example form of expression and is not a further limitation of the present invention.

[0023] like Figure 1-3 As shown, the bidirectional power acquisition digital display adapter of this embodiment includes three parts: a circuit board 1, a limiter 2 and a main body 3. An open structure for the circuit board 1 to enter is provided on the first end of the main body 3. The circuit board 1 enters the main body 3 through the open structure. The outer periphery of the limiter 2 matches the inner periphery of the open structure. Under the process of ultrasonic welding, the limiter 2 and the main body 3 are fused together. This fusion connection method replaces the connection method of gluing and avoids leakage of glue.

[0024] The limiting member 2 and the first end are respectively provided with a first opening 21 and a second opening, and the first opening 21 and the second opening both correspond to connection ports on the circuit board 1. In the embodiment, the connection port of the circuit board 1 corresponding to the second opening is a male connector 1a passing through the second opening, and the connection port of the circuit board 1 corresponding to the first opening 21 is a female connector 1b located in the main body 3. This is only one implementation of this embodiment and is not a further limitation of the technical solution. According to production requirements, the positions of the male connector 1a and the female connector 1b on the circuit board 1 can be interchanged.

[0025] In addition, the connection port includes multiple types, such as Type-C, Type-A, Micro USB interface, lightning, DC head, etc., and the connection port is one of the male head 1a or female head 1b of the above types.

[0026] In order to improve the functionality of the two-way adapter, the main body 3 is made of a light-transmitting material (such as acrylic), and the circuit board 1 is provided with an LED digital screen. The LED digital screen includes multiple LED chips, and the charging display mark is displayed through the LED chips. The improvement in interest significantly improves the ornamental value of the product.

[0027] This charging display mark can be the current charging power, current, and voltage. The circuit board 1 is provided with a detection circuit for controlling the LED chip, which controls the cutoff and conduction of multiple LED chips to form a recognizable charging value display pattern.

[0028] The traditional detection circuit can only specify a type C interface / DC head as the charging input, and the digital display will show the effect screen. Another advantage of this detection circuit of the utility model is that it does not cause limitations in use, and the charging power can be displayed regardless of which side of the connector is used.

[0029] like Figure 4 As shown, the detection circuit of the bidirectional adapter includes an MCU chip U2 (model 32D02), an LED module (model HV6403A33R), and two connection ports (a first connector / a second connector). Figure 1 As shown, the VCC port is connected to the No. 2 pin of the first connection port CON1, and is connected to the No. 8 pin of the chip U2 through the resistor R8, and the No. 1 pin of the first connection port CON1 is connected to the No. 8 pin of the chip U2 through the resistor R11; in this scheme, the resistors R8 and R11 are used as voltage-dividing resistors, and the voltage is divided by the resistors R8 and R11 and input to the No. 8 pin of the chip U2, and the chip U2 compares and obtains the voltage value, and the chip U2 outputs the corresponding level signal to the display module according to the voltage value obtained by the comparison, and for the multiple LED chips in the display module, they are controlled by the level signal, and after being selectively lit up, they form a corresponding digital pattern, which is the current charging voltage indication value.

[0030] Generally, the power supply end of chip U2 is connected to a voltage dropper LDO (model HV6403A33R) to reduce VCC to a safe and stable range with low power consumption, thus protecting chip U2 from damage caused by high voltage fluctuations.

[0031] The Vin and Vout pins of the buck converter LDO are connected with input capacitor C2 and output capacitor C1. Input capacitor C2 plays a filtering role, filtering high-frequency noise into GNDA; output capacitor C1 improves load transient response. Since the load current changes sharply, when the load current increases, the conduction voltage drop of the adjustment tube in the LDO will increase, causing the output voltage to drop. After setting the output capacitor C2, the instantaneous high current demand can be met, which helps prevent the output voltage from dropping due to sudden load changes and maintain the stability of the output voltage.

[0032] The negative pole of the loop between the connection ports is also connected with a sampling resistor RL, a current limiting resistor R7, a current limiting resistor R10 and a current limiting resistor R9. Along the flow direction of the charging current, the charging current enters the No. 16 pin of the chip U2, and sequentially passes through the sampling resistor RL, the current limiting resistor R10, the current limiting resistor R9 and the current limiting resistor R7, and flows into the No. 10 pin of the chip U2. The current limiting resistor R10 is also connected to the No. 6 pin of the chip U2, and the current limiting resistor R9 is also connected to the No. 7 pin of the chip U2. The sampling resistor RL generates a voltage drop when current passes through it, and one end of the sampling resistor RL is connected to the current limiting resistor R10, the current limiting resistor R9 and the current limiting resistor R7, and a single-ended operation is performed through the No. 6, 7 and 10 pins of the chip U2. The other end of the sampling resistor RL is compared and operated through the No. 16 pin to obtain the current value.

[0033] In this embodiment, the display module is an LED digital tube display screen, and pins 2, 3, 4, 13, 14, and 15 of the chip U2 output corresponding level information to the LE1 digital tube display screen.

[0034] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A bidirectional power acquisition digital display adapter, comprising a body, characterized in that: It also includes a limiting piece, one end of the main body is formed with an open structure for the circuit board to enter the interior, both ends of the circuit board are provided with connection ports for transmitting terminal electrical signals, the limiting piece has a first opening corresponding to the connection port, after the limiting piece is ultrasonically welded in the open structure, the connection port passes through the first opening and is located outside the main body, and the other end of the main body is provided with a second opening to adapt to the connection port on the other end of the circuit board.

2. A bidirectional power acquisition digital display adapter according to claim 1, characterized in that: The connection port is one of the male or female connectors of Type C, Type A, type B, lightning, and DC.

3. The bidirectional power acquisition digital display adapter according to claim 1, characterized in that: The main body is made of black glossy translucent material. The circuit board is equipped with an LED display control chip and an LED digital screen, which displays the charging value.

4. The bidirectional power acquisition digital display adapter according to claim 1, characterized in that: The circuit board is provided with a detection circuit for controlling the LED digital screen, which controls the cutoff and conduction of multiple LED display control chips to form a recognizable charging value display pattern.

5. A bidirectional power acquisition digital display adapter according to claim 4, characterized in that: The detection circuit includes a detection operation unit, a sampling resistor connected in series with a connection port, and the connection port is coupled to the detection operation unit through a voltage divider resistor. The input pin on the detection operation unit is coupled to the two ends of the sampling resistor. The detection operation unit converts the corresponding electrical signal to the LED digital screen according to the collected voltage value and current value.

6. The bidirectional power acquisition digital display adapter according to claim 1, characterized in that: The invention also comprises an LDO module, which is coupled to the detection operation unit and provides a stepped-down working voltage to the detection operation unit.

7. The bidirectional power acquisition digital display adapter according to claim 1, characterized in that: It also includes a current limiting resistor, the sampling resistor is connected in series to the negative pole in the loop between the connectors, and the current passes through the sampling resistor and the current limiting resistor in sequence and is coupled to the detection operation unit.

8. The bidirectional power acquisition digital display adapter according to claim 5, characterized in that: At least two voltage-dividing resistors are provided, the voltage-dividing resistors are coupled to each other, at least one voltage-dividing resistor is connected to the detection operation unit, and the other voltage-dividing resistor is grounded.

9. The bidirectional power acquisition digital display adapter according to claim 1, characterized in that: An input capacitor and an output capacitor are coupled to the input and output ports of the LDO module respectively.

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