CN220671947U

CN220671947U - Sealed multifunctional interface circuit

Info

Publication number: CN220671947U
Application number: CN202322154343.0U
Authority: CN
Inventors: 曾海更; 吴正华; 龚宇; 李艳春; 唐永强
Original assignee: Shenzhen Gold Corolla Electronics Co ltd
Current assignee: Shenzhen Gold Corolla Electronics Co ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-03-26
Anticipated expiration: 2033-08-11

Abstract

The utility model discloses a sealed multifunctional interface circuit, which relates to the field of circuit control, and comprises: the control module is used as a microcontroller of the PCBA to complete the work control of the product; the interface module is used for configuring the interface to be a function port or a burning port according to whether the time of the timer is longer than the preset value time, so that the function of the control module is realized or the burning program is updated; the control module is connected with the interface module; compared with the prior art, the utility model has the beneficial effects that: the utility model utilizes the time-sharing multiplexing principle of the burning port and other functional ports of the control module, so that a software upgrading interface is newly added on the basis of no need of changing any PCBA device; the PCBA can also carry out software upgrading in a sealed environment, so that the product rejection rate is reduced.

Description

Sealed multifunctional interface circuit

Technical Field

The utility model relates to the field of circuit control, in particular to a sealed multifunctional interface circuit.

Background

With the development of electronic technology, people have increasingly higher requirements on waterproof performance of electronic product equipment, so that a PCBA (printed circuit board assembly (PCB) is glued and sealed in a structural part through SMT (surface mount technology) or through the whole process of a DIP (direct current) plug-in unit, such as the PCBA of a toilet, the PCBA of a water purifier, the PCBA of a water pump and the like.

Although the glue is applied to play a role in preventing water, other problems are brought, such as when the software has a Bug after the product is released, the glue is applied, and the burning port is closed, so that the product cannot be updated in the burning program and is directly scrapped, which is a great resource waste and needs improvement.

Disclosure of Invention

The present utility model is directed to a sealed multifunctional interface, which solves the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a sealed multifunctional interface circuit comprises

The control module is used as a microcontroller of the PCBA to complete the work control of the product;

the interface module is used for configuring the interface to be a function port or a burning port according to whether the time of the timer is longer than the preset value time, so that the function of the control module is realized or the burning program is updated;

the control module is connected with the interface module.

As still further aspects of the utility model: the interface module comprises a wire holder J1, a resistor R1 and a resistor R2, wherein the first end of the wire holder J1 is connected with a voltage VDD, one end of the resistor R1 and one end of the resistor R2, the second end of the wire holder J1 is connected with the other end of the resistor R1 and an A interface of the control module, the third end of the wire holder J1 is connected with the other end of the resistor R2 and a B interface of the control module, and the fourth end of the wire holder J1 is grounded.

As still further aspects of the utility model: the interface A and the interface B are other functional ports of the control module.

As still further aspects of the utility model: other functional ports include UART ports, I2C ports and GPIO ports.

As still further aspects of the utility model: the voltage VDD is a dc power supply.

A sealed multifunctional interface method applied to the sealed multifunctional interface circuit, comprising the following steps:

step 1: configuring an interface as a burning port, and jumping to the step 2;

step 2: if the timer value is more than or equal to the preset value, jumping to the step 3, otherwise jumping to the step 1;

step 3: configuring an interface into a product function port, and jumping to the step 4;

step 4: executing the product function action, and jumping to the step 5;

step 5: and (5) ending.

As still further aspects of the utility model: the preset value is the burning handshake time.

Compared with the prior art, the utility model has the beneficial effects that: the utility model utilizes the time-sharing multiplexing principle of the burning port and other functional ports of the control module, so that a software upgrading interface is newly added on the basis of no need of changing any PCBA device; the PCBA can also carry out software upgrading in a sealed environment, so that the product rejection rate is reduced.

Drawings

Fig. 1 is a circuit diagram of a sealed multifunctional interface circuit.

Fig. 2 is a flow chart of a method of sealing a multi-function interface.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to FIG. 1, a sealed multifunctional interface circuit includes

the control module is connected with the interface module.

In this embodiment: referring to fig. 1, the interface module includes a wire holder J1, a resistor R1, and a resistor R2, wherein a first end of the wire holder J1 is connected to a voltage VDD, one end of the resistor R1, one end of the resistor R2, a second end of the wire holder J1 is connected to the other end of the resistor R1, an a interface of the control module, a third end of the wire holder J1 is connected to the other end of the resistor R2, a B interface of the control module, and a fourth end of the wire holder J1 is grounded.

The wiring seat J1 is connected with a A, B interface of the control module, and the control module realizes corresponding functions and program burning through an A interface, a B interface and the wiring seat J1. Only two burning ports are needed based on program burning, so only two interfaces A, B are arranged here.

In this embodiment: referring to fig. 1, an interface a and an interface B are other functional ports of the control module.

In this embodiment: referring to fig. 1, other functional ports include UART ports, I2C ports and GPIO ports.

Only three kinds of function ports (UART port, I2C port and GPIO port) are exemplified here, and practically any function port can be used, and a user configures the corresponding interface according to specific requirements.

In this embodiment: referring to fig. 1, the voltage VDD is a dc power supply.

The voltage VDD can be directly supplied by a battery, or can be supplied after being processed by alternating current to direct current through voltage reduction.

In this embodiment: referring to fig. 2, a sealed multifunctional interface method is applied to the sealed multifunctional interface circuit described above, and includes the following steps:

step 1: configuring an interface as a burning port, and jumping to the step 2;

step 4: executing the product function action, and jumping to the step 5;

step 5: and (5) ending.

In this embodiment: referring to fig. 2, the preset value is a writing handshake time.

When the interface module is connected with the burning equipment for burning, the control module receives the burning equipment request and enters a burning port mode for upgrading programs, and when the interface module exceeds a preset value and does not receive the burning request, the interface module enters a function port mode, and the time is called burning handshake time.

The working principle of the utility model is as follows: the control module is used as a microcontroller of the PCBA to complete the work control of the product; the interface module is used for configuring the interface to be a function port or a burning port according to whether the time of the timer is longer than the preset value time, so that the function of the control module is realized or the burning program is updated.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A sealed multi-function interface circuit, comprising:

the method is characterized in that:

the sealed multifunctional interface circuit further comprises:

the control module is connected with the interface module.

2. The sealed multifunctional interface circuit according to claim 1, wherein the interface module comprises a wire holder J1, a resistor R1 and a resistor R2, a first end of the wire holder J1 is connected to the voltage VDD, one end of the resistor R1 and one end of the resistor R2, a second end of the wire holder J1 is connected to the other end of the resistor R1 and an a interface of the control module, a third end of the wire holder J1 is connected to the other end of the resistor R2 and a B interface of the control module, and a fourth end of the wire holder J1 is grounded.

3. The sealed multi-function interface circuit of claim 2, wherein interface a and interface B are other functional ports of the control module.

4. A sealed multi-function interface circuit as claimed in claim 3 wherein the other function ports include UART ports, I2C ports and GPIO ports.

5. The encapsulated multifunctional interface circuit of claim 2, wherein the voltage VDD is a dc power supply.