Power connector and charging device

Abstract

The utility model provides a power connector and a charging device. The utility model relates to a power supply connector, which comprises a shell, a contact component and an insulating seat body, the contact component comprises a first power supply pin, a second power supply pin, a first signal pin and a second signal pin, the first power supply pin and / or the second power supply pin are / is provided with a fracture, and the fracture is connected with a PTC (Positive Temperature Coefficient) device; and the contact component of the PTC device and the insulating seat body are integrally arranged in the shell. The PTC device of the power supply connector can be arranged in the housing, thereby effectively preventing the external environment from influencing and damaging the PTC device, reducing the use amount of PCB materials, reducing the use amount of welding solder paste in the mounting process, simplifying the assembling process of the existing connector, and enabling the overall size of the connector without the PCB to be smaller, thereby having better commercial application prospects.

Description

Technical Field

[0001] This utility model relates to a power connector and a charging device, belonging to the technical field of new power connector equipment. Background Technology

[0002] Existing mass-produced connectors typically have four pins: two power pins for the power interface and two signal pins for the signal interface. Incorporating a PTC device into a mass-produced connector requires a standard PCB board to connect the four pins and the two terminals of the PTC device. During the mounting process, the PTC device needs to be soldered onto the PCB board, increasing both PCB material costs and solder paste usage. Furthermore, the mounting process becomes more complex, increasing the probability of quality issues. Therefore, existing connectors either expose the PCB board and the PTC device both outside the housing, or house both the PCB board and the PTC device inside the housing. This significantly increases the connector's size. Thus, incorporating a PTC device into existing connectors presents a pressing technical challenge. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a power connector and a charging device.

[0004] According to the embodiments of this utility model, the first embodiment is provided as follows: a power connector, including a housing, a contact assembly, and an insulating base;

[0005] The contact assembly includes a first power pin, a second power pin, a first signal pin, and a second signal pin. The first power pin and / or the second power pin are provided with a break, and a PTC device is connected to the break.

[0006] The contact assembly containing the PTC device and the insulating base are integrally disposed within the housing.

[0007] Furthermore, the first power pin is connected to the first contact terminal, and the second power pin is connected to the second contact terminal;

[0008] The first power supply pin and the first contact terminal of the PTC device constitute the first power supply electrode of the power supply, and the second power supply pin and the second contact terminal constitute the second power supply electrode of the power supply.

[0009] Alternatively, the first power supply terminal of the power supply is formed by the second power supply pin and the second contact terminal of the PTC device, and the second power supply terminal of the power supply is formed by the first power supply pin and the first contact terminal.

[0010] When the first power source is extremely positive, the second power source is extremely negative; when the first power source is extremely negative, the second power source is extremely positive.

[0011] Furthermore, the insulating base is provided with at least one mounting window. During device mounting, the PTC device is mounted through the mounting window at the break point of the first power pin or the second power pin and the first power pin or the second power pin is connected. After mounting, the PTC device is housed in the mounting window.

[0012] Furthermore, the outer casing has an opening at the position corresponding to the PTC device, through which colloid is injected into the outer casing to form a protective encapsulation shell for the PTC device.

[0013] Furthermore, the outer shell is provided with multiple openings, through which colloid is injected into the outer shell to form a connecting layer between the filling contact assembly, the insulating base and the outer shell.

[0014] Furthermore, the first power supply pin and the second power supply pin are symmetrically arranged, and the first signal pin and the second signal pin are symmetrically arranged.

[0015] Furthermore, the insulating base includes a first step and a second step, wherein the first step and the second step are at different step heights.

[0016] Furthermore, the first power pin is connected to the first contact terminal via a T-shaped bending member. The T-shaped bending member includes a T-shaped head and a T-shaped bending portion. The width of the T-shaped head is greater than the width of the first contact terminal. The first contact terminal is connected to the bottom of the T-shaped bending portion. The T-shaped head is disposed within a first step body, and the first contact terminal is disposed within a second step body.

[0017] Furthermore, the PTC device is a PTC thermistor, and the resistance value of the thermistor increases rapidly with increasing temperature.

[0018] According to the embodiments of this utility model, utilizing the power connector in the first solution provided by this utility model, a second solution is provided as follows:

[0019] A charging device includes a power connector, the power connector including a housing, a contact assembly and an insulating base, the contact assembly including a first power pin, a second power pin, a first signal pin and a second signal pin, the first power pin and / or the second power pin being provided with a break, and a PTC device being connected to the break; the contact assembly including the PTC device and the insulating base are integrally disposed within the housing.

[0020] A charging device further includes any of the power connectors described above.

[0021] Compared with the prior art, the unique advantages of the technical solution provided in this application are as follows: The power connector provided in this application does not require signal pins to transmit various signals. Although the power connector is also provided with a first signal pin and a second signal pin based on existing industry standards, it is not connected to the overall circuit and does not function. Therefore, the power connector of this application directly sets a break on the first power pin or the second power pin and directly connects the PTC device at the break. Based on the function of the thermistor that the resistance increases rapidly when the temperature rises, the charging circuit is protected. In particular, when the temperature is too high, the thermistor can melt to automatically protect the power connector and the charging device.

[0022] The power connector PTC device provided in this application can be built into the housing, effectively preventing the external environment from affecting and damaging the PTC device, reducing the use of PCB board materials, reducing the amount of solder paste used in the mounting process, simplifying the existing connector assembly process, and the overall size of the PCB-free connector is smaller, which has better commercial application prospects. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] in:

[0025] Figure 1 This is an exploded view of the power connector in one embodiment;

[0026] Figure 2 This is a schematic diagram of the assembly of the power connector in one embodiment.

[0027] Figure label:

[0028] 10-Housing; 11-Opening; 20-Contact assembly; 21-First power pin; 22-Second power pin; 23-First signal pin; 24-Second signal pin; 25-PTC device; 26-First contact terminal; 27-Second contact terminal; 30-Insulating base; 31-First step body; 32-Second step body; 33-Mounting window. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Example 1

[0031] Existing mass-produced connectors typically have four pins: two power pins for the power interface and two signal pins for the signal interface. Incorporating a PTC device 25 into a mass-produced connector requires a standard PCB board to connect the four pins and the two terminals of the PTC device 25. During the mounting process, the PTC device 25 needs to be soldered onto the PCB board, increasing both PCB material costs and solder paste usage. Furthermore, the mounting process becomes more complex, increasing the probability of quality issues. Therefore, existing connectors either expose the PCB board and the PTC device on the PCB board outside the housing 10, or both are housed inside the housing 10. This significantly increases the connector's size. Thus, implementing a PTC device 25 in existing connectors presents a pressing technical challenge.

[0032] To address the aforementioned technical problems, this embodiment provides a power connector, such as... Figure 1 , Figure 2 As shown, the device includes a housing 10, a contact assembly 20, and an insulating base 30. The contact assembly 20 includes a first power pin 21, a second power pin 22, a first signal pin 23, and a second signal pin 24. The first power pin 21 and / or the second power pin 22 are provided with a break, and a PTC device 25 is connected to the break. The contact assembly 20, which includes the PTC device 25, and the insulating base 30 are integrally disposed within the housing 10.

[0033] Specifically, the first power pin 21 and the second power pin 22 are symmetrically arranged, and the first signal pin 23 and the second signal pin 24 are symmetrically arranged.

[0034] This power connector has a break point set directly on the first power pin 21 or the second power pin 22. The PTC device 25 is directly connected to the break point to form a power charging circuit and the PTC device 25 is used as a protection device for the power charging circuit. The characteristic of the PTC device 25 that the resistance increases rapidly with the temperature can be used to protect the working state of the power charging circuit.

[0035] The PTC device 25 is directly connected to the first power pin 21 or the second power pin 22, avoiding the use of a PCB board, reducing the use of PCB board materials, reducing the amount of solder paste used during the mounting process, simplifying the existing connector assembly process, and the overall size of the PCB-free connector is smaller.

[0036] Furthermore, a break can be set on both the first power pin 21 and the second power pin 22, and two PTC devices 25 can be set at the two break points respectively, which can form a double protection for the power charging circuit in some scenarios and make the safety higher.

[0037] Furthermore, since the use of a PCB board is avoided, at least one mounting window 33 can be provided on the insulating base 30. During device mounting, the PTC device 25 is mounted at the break point of the first power pin 21 or the second power pin 22 through the mounting window 33 and the first power pin 21 or the second power pin 22 is connected. After mounting, the PTC device 25 is housed in the mounting window 33.

[0038] Mounting window 33 can be used as a mounting space or to accommodate PTC devices 25, perfectly accommodating additional PTC devices inside the connector without increasing the connector's design size.

[0039] Specifically, an opening 11 is provided at the position corresponding to the PTC device 25 in the housing 10. Glue is injected into the housing 10 through the opening 11 to form a protective shell for the PTC device 25. Furthermore, multiple openings 11 can be provided in the housing 10 to inject glue into the housing 10 and form a connecting layer between the filling contact assembly 20, the insulating base 30, and the housing 10.

[0040] Furthermore, the insulating base 30 includes a first step 31 and a second step 32, with the first step 31 and the second step 32 at different step heights. The first power pin 21 is connected to the first contact terminal 26 via a T-shaped bending member. The T-shaped bending member includes a T-shaped head and a T-shaped bend. The width of the T-shaped head is greater than the width of the first contact terminal 26. The first contact terminal 26 is connected to the bottom of the T-shaped bend. The T-shaped head is disposed within the first step 31, and the first contact terminal 26 is disposed within the second step 32. The T-shaped bending member can further ensure the installation stability of the PTC device 25.

[0041] Similarly, a T-shaped bend is also provided between the second power pin 22 and the second contact terminal 27.

[0042] Specifically, the first power pin 21, the first contact terminal 26, and the T-shaped bent part are integrally formed.

[0043] The T-shaped bend can increase the connection area between the pin and the insulating base 30, and the bend can further prevent the solder pin from being pulled off or loosened when pulled by strong external force.

[0044] Example 2

[0045] This embodiment provides a charging device, which also includes any of the power connectors described above.

[0046] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this application's patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this application, and these all fall within the protection scope of this application.

[0047] It should be noted that when an element is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0049] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

Claims

1. A power connector comprising a housing, a contact assembly and an insulating base, characterized in that: the contact assembly comprises a first power pin, a second power pin, a first signal pin and a second signal pin, the first power pin and / or the second power pin is provided with a break, and a PTC device is connected to the break; the contact assembly comprising the PTC device and the insulating base are integrally arranged in the housing.

2. A power connector according to claim 1, wherein the first power pin is connected to a first contact terminal, and the second power pin is connected to a second contact terminal; the first power pin comprising the PTC device and the first contact terminal constitute a first power pole of a power supply, and the second power pin and the second contact terminal constitute a second power pole of the power supply; or, the second power pin comprising the PTC device and the second contact terminal constitute the first power pole of the power supply, and the first power pin and the first contact terminal constitute the second power pole of the power supply; when the first power pole is a positive pole, the second power pole is a negative pole, and when the first power pole is a negative pole, the second power pole is a positive pole.

3. A power connector according to claim 1, wherein the insulating base is provided with at least one mounting window, and when the device is mounted, the PTC device is mounted on the break of the first power pin or the second power pin through the mounting window and connects the first power pin or the second power pin, and after the mounting is completed, the PTC device is accommodated in the mounting window.

4. The power connector of claim 1, wherein, the housing is provided with an opening at the position corresponding to the PTC device, and the housing is injected with a gel through the opening to form a gel protection shell for protecting the PTC device.

5. The power connector of claim 1, wherein, the housing is provided with multiple openings, and the housing is injected with a gel through the openings to form a connecting layer for filling the contact assembly, the insulating base and the housing.

6. A power connector according to claim 1, wherein the first power pin and the second power pin are symmetrically arranged, and the first signal pin and the second signal pin are symmetrically arranged.

7. A power connector according to claim 1, wherein the insulating base comprises a first step body and a second step body, and the first step body and the second step body are at different step heights.

8. A power connector according to claim 6, wherein the first power pin and the first contact terminal are connected through a T-shaped bending piece, the T-shaped bending piece comprises a T-shaped head and a T-shaped bending part, the width of the T-shaped head is greater than the width of the first contact terminal, the first contact terminal is connected to the bottom of the T-shaped bending part, the T-shaped head is arranged in the first step body, and the first contact terminal is arranged in the second step body.

9. The power connector of claim 1, wherein, the PTC device is a PTC thermistor, and the resistance value of the thermistor rapidly increases with the increase of temperature.

10. A charging device, characterized by the power connector according to any one of claims 1-9.

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