Aging device for alarm circuit board

Abstract

The utility model relates to an aging device for an alarm circuit board. Comprising a multi-layer aging rack, a plurality of aging trays are arranged between layers of the multi-layer aging rack, and a plurality of alarm circuit boards are loaded on the aging trays; the aging tray comprises a tray rack, a plurality of golden finger socket boards are mounted on the tray rack, a plurality of groups of golden finger sockets are mounted on the golden finger socket boards, a power supply interface, a signal transmission interface and an interface board are further arranged on the tray rack, and each group of golden finger sockets is connected with the interface board through the corresponding golden finger socket board. The power supply interface and the signal transmission interface are connected with the interface board; the multi-layer aging rack is further provided with a power supply interface and a signal interface, the power supply interface of each aging tray is connected with the on-rack power supply interface, and the signal transmission interface of each aging tray is connected with the on-rack signal interface. The device has a large-scale aging function, improves the convenience of aging operation and the efficiency of aging operation, can be quickly connected with a subsequent calibration process, and further improves the operation efficiency and maintains the temperature of a product by omitting the secondary plugging operation of the product.

Description

Technical Field

[0001] The utility model belongs to the technical field of alarm production equipment, and particularly relates to an aging device for an alarm circuit board. Background Art

[0002] The alarm circuit board is a circuit board applied to a household combustible gas alarm / detector. Before assembling the alarm circuit board into the main body part of the alarm after production, aging and calibration operations need to be carried out. Aging means applying power to the alarm circuit board for a certain period of time, and calibration means placing the alarm circuit board into a calibration device and injecting a test gas required by the calibration process into the calibration box until the concentration in the box displayed by the gas detector is stable at the first concentration requirement, lasting for a certain period of time, and the alarm circuit board product should be in a normal monitoring state; continuing to inject gas into the calibration box until the concentration displayed by the gas detector is stable at the second concentration requirement, lasting for a certain period of time, and the product should enter the alarm state within 30 seconds. The product passing through the foregoing calibration process is regarded as qualified, otherwise it is judged as unqualified, and the qualified product stores the calibrated alarm setting value. The foregoing aging process is a pre-process of the calibration process. Usually, when performing the calibration process on a product, the product needs to have a temperature higher than the room temperature.

[0003] As can be seen from the foregoing, the aging and calibration operations of the alarm circuit board are a relatively complex process. With the expansion of the production scale of alarm products, the original small-scale calibration device has been difficult to meet the production requirements. The aging device and the calibration device in the prior art are independent devices. After the product is aged, the alarm circuit board needs to be unplugged from the aging device and then inserted into the calibration device. In this process, not only the operation efficiency is reduced, but also the temperature of the alarm circuit board that has been powered up and heated in the aging process decreases and does not meet the temperature requirements of the calibration process for the product. Therefore, it is necessary to develop and design an aging device that supports large-scale product aging. Content of the Utility Model

[0004] The purpose of the utility model is to provide an aging device for an alarm circuit board, which has the function of large-scale aging, improves the convenience and efficiency of the aging operation, and can be quickly connected to the subsequent calibration process, further improving the operation efficiency and maintaining the temperature of the product by省去 the operation of secondary plugging and unplugging of the product.

[0005] It should be noted that the expression "省去" in the original text may not be a standard Chinese term. It is recommended to check and correct it to a more accurate and common expression if possible. Here, a literal translation is provided according to the requirements.The technical solution adopted by this utility model is as follows: an aging device for alarm circuit boards, comprising a multi-layer aging rack, with multiple aging trays placed between the layers of the multi-layer aging rack and multiple alarm circuit boards loaded on the aging trays; the aging tray includes a tray frame, on which multiple gold finger socket boards are installed, and on the gold finger socket boards are multiple sets of gold finger sockets; the tray frame is also provided with a power supply interface, a signal transmission interface, and an interface board, each set of gold finger sockets is connected to the interface board through its respective gold finger socket board, and the power supply interface and signal transmission interface are connected to the interface board; the multi-layer aging rack is also provided with a rack-mounted power supply interface and a rack-mounted signal interface, the power supply interface of each aging tray is connected to the rack-mounted power supply interface, and the signal transmission interface of each aging tray is connected to the rack-mounted signal interface.

[0006] Preferably, the gold finger socket plate is a strip plate with each group of gold finger sockets arranged along the length direction, and the gold finger socket plates are arranged in parallel. Ventilation holes are provided on the tray frame and between adjacent gold finger socket plates.

[0007] Preferably, the pallet rack is also provided with handles for moving aging pallets.

[0008] The advantages and positive effects of this utility model are:

[0009] This invention provides an aging device for alarm circuit boards. Compared with existing aging devices, the aging device of this invention has multiple insertable and removable aging trays arranged between the layers of a multi-layer aging rack, and multiple alarm circuit boards to be aged are loaded on each aging tray. Therefore, each aging operation can simultaneously complete the large-scale aging of multiple alarm circuit boards, improving the efficiency of product aging. Moreover, the standardized aging tray method for loading alarm circuit boards improves the convenience of large-scale transfer of alarm circuit boards. After the aging process, a calibration process is performed. At this time, the aging trays containing alarm circuit boards can be quickly transferred to the calibration device as a whole. This not only improves the convenience and efficiency of the transfer operation by avoiding secondary insertion and removal of alarm circuit boards, but also ensures that the product temperature does not drop excessively through rapid transfer, meeting the temperature requirements of the subsequent calibration device.

[0010] By installing multiple gold finger socket boards, each with multiple sets of gold finger sockets, on the aging tray, alarm circuit boards that also have gold fingers can easily and quickly establish connections with the gold finger sockets, including power and signal connections. By providing the aging tray with an interface board containing both power supply and signal transmission interfaces, unified management and connection of each gold finger socket board and its respective gold finger plugs are achieved. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 yes Figure 1 A schematic diagram of the connection structure between the calibration tray and the alarm circuit board;

[0013] Figure 3 yes Figure 1 A schematic diagram of the connection structure between the calibration tray and the alarm circuit board;

[0014] Figure 4 yes Figure 3 Circuit diagram of the interface board;

[0015] Figure 5 yes Figure 3 Circuit diagram of the Zhongjin Finger socket board.

[0016] In the picture:

[0017] 1. Multi-layer aging rack; 2. Aging tray; 2-1. Tray frame; 2-2. Interface board; 2-3. Power supply interface; 2-4. Signal transmission interface; 2-5. Gold finger socket board; 2-6. Gold finger socket; 2-7. Handle; 2-8. Ventilation hole; 3. Alarm circuit board; 4. Rack power supply interface; 5. Rack signal interface; 6. Host computer. Detailed Implementation

[0018] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0019] The aging process refers to supplying power to the alarm circuit board 3 for a certain period of time. Calibrating the alarm circuit board 3 involves placing the product in a sealed enclosure, defined as a calibration chamber, and injecting standard gas into the chamber. When the gas concentration reaches the alarm set value, a command is sent to the alarm circuit board 3. Upon receiving the command, the product stores this value (the aforementioned alarm set value) in the product. This process is called calibration.

[0020] Please see Figure 1 The aging device for alarm circuit boards of this utility model is used to perform the aforementioned aging operation on the product. The structural design of this aging device also takes into account the execution of subsequent calibration processes and the connection between the device and the calibration device.

[0021] The aging device includes a multi-layer aging rack 1, with multiple aging trays 2 placed between the layers of the rack 1, and multiple alarm circuit boards 3 mounted on the trays 2. The multi-layer aging rack 1 is made of steel, providing sufficient support strength and loading space. As shown in the figure, three aging trays 2 are arranged horizontally side by side within each layer of the rack 1, and multiple alarm circuit boards 3 are mounted on each tray 2. As shown in the figure, the alarm circuit boards 3 are mounted on the aging trays 2 in an array, allowing for transfer and synchronous aging of the entire tray. This not only significantly improves the efficiency of the aging process but also enhances the ease of product relocation, facilitating transfer between different processes, specifically to the subsequent calibration process, reducing labor intensity. As shown in the figure, each aging tray 2 is loaded with 32 alarm circuit boards 3, with 3 aging trays 3 placed on each layer, for a total of 6 layers. Therefore, each operation can simultaneously age 576 alarm circuit boards 3.

[0022] Please see Figure 2 and Figure 3 It can be seen that:

[0023] The aging tray 2 includes a tray frame 2-1, on which multiple gold finger socket plates 2-5 are installed and multiple sets of gold finger sockets 2-6 are installed on the gold finger socket plates 2-5. Each alarm circuit board 3 is connected to one of the sets of gold finger sockets 2-6 by a plug-in connection.

[0024] The tray rack 2-1 is also equipped with a power supply interface 2-3, a signal transmission interface 2-4, and an interface board 2-2. Each set of gold finger sockets 2-6 is connected to the interface board 2-2 through its respective gold finger socket board 2-5. The power supply interface 2-3 and the signal transmission interface 2-4 are connected to the interface board 2-2. In this embodiment, the power supply interface 2-3 and the signal transmission interface 2-4 of each aging tray 2 are connected to the display instrument and the operation panel 3 through a wiring harness located inside the box.

[0025] In this embodiment, the gold finger socket plate 2-5 is a strip plate, and each set of gold finger sockets 2-6 is arranged along the length direction. The gold finger socket plates 2-5 are arranged in parallel. Ventilation holes 2-8 are provided on the tray frame 2-1 and between adjacent gold finger socket plates 2-5. The purpose of providing ventilation holes 2-8 is to improve air permeability, allowing the calibration gas injected into the calibration box to pass through the ventilation holes 2-8 during the calibration process.

[0026] Figure 4The circuit diagram of interface board 2-2 is shown, indicating that it provides eight-channel interface functionality. Correspondingly, eight gold finger socket boards 2-5 are mounted on tray 2-1 and connected to the eight channels of interface board 2-2. Interface board 2-2 connects to the eight gold finger socket boards 2-5 via a double-row pin connector. The main function of interface board 2-2 is to provide power to the eight channels (each with four gold finger sockets) of the alarm circuit board 5, and to establish a signal path between each alarm circuit board 5 and the MCU, uploading data to the host computer 8 via a USART serial port. Interface board 2-2 contains one MCU main control chip and eight 4-channel dual-pole analog switch chips. The MCU main control chip manages the power supply control of the eight channels and the signal communication control of the 32 alarm circuit boards 5. The analog switch chips are controlled by the MCU, ensuring that data from each alarm circuit board 5 is uploaded sequentially.

[0027] Figure 5 The circuit diagram of the gold finger socket board 2-5 is provided. It can be seen that each gold finger socket board 2-5 provides four sets of gold finger sockets 2-6. Each set of gold finger sockets 2-6 has two gold finger sockets 2-6 arranged along the length of the gold finger socket board 2-5. Each alarm circuit board 5 occupies one set, that is, two gold finger sockets 2-6, and the connection is established by plugging in. The gold finger socket board 2-5 mainly provides the connection interface for the alarm circuit board 5. The gold fingers of the alarm circuit board 5 are inserted into the gold finger socket board 2-5, and power and data communication are achieved through the connection interface with the interface board 2-2. The use of gold finger connections is because it allows for plug-and-play operation, is convenient and reliable, easy to maintain, and effectively improves production efficiency.

[0028] In this embodiment, a handle 2-7 for moving the aging tray 2 is also provided on the tray frame 2-1. The function of providing the handle 2-7 is to improve the ease of operation when moving the aging tray 2 and the alarm circuit board 3 it carries.

[0029] The multi-layer aging rack 1 is also equipped with a rack power supply interface 4 and a rack signal interface 5. The power supply interface 2-3 of each aging tray 2 is connected to the rack power supply interface 4, and the signal transmission interface 2-4 of each aging tray 2 is connected to the rack signal interface 5.

[0030] To facilitate the reception and statistical analysis of aging results, a host computer 6 can be configured for this aging device. The signal interface 5 on the rack is connected to the host computer 6 via a wiring harness. The aging status and conclusions of each alarm circuit board 3 on each aging tray 2 are sent to the host computer 6 for display and storage. The host computer 6 displays the aging conclusions on its display interface and indicates the location of the alarm circuit boards 3 that have failed aging, allowing for quick identification of products that have not passed aging for further processing.

Claims

1. An aging device for an alarm circuit board, characterized in that: The device includes a multi-layer aging rack (1), with multiple aging trays (2) placed between the layers of the multi-layer aging rack (1) and multiple alarm circuit boards (3) mounted on the aging trays (2); the aging trays (2) include a tray frame (2-1), with multiple gold finger socket boards (2-5) installed on the tray frame (2-1) and multiple sets of gold finger sockets (2-6) installed on the gold finger socket boards (2-5); the tray frame (2-1) is also equipped with a power supply interface (2-3), a signal transmission interface (2-4), and an interface board (2- 2) Each group of gold finger sockets (2-6) is connected to the interface board (2-2) through the gold finger socket board (2-5) it belongs to. The power supply interface (2-3) and the signal transmission interface (2-4) are connected to the interface board (2-2). The multi-layer aging rack (1) is also equipped with rack power supply interface (4) and rack signal interface (5). The power supply interface (2-3) of each aging tray (2) is connected to the rack power supply interface (4), and the signal transmission interface (2-4) of each aging tray (2) is connected to the rack signal interface (5).

2. The aging device for an alarm circuit board as described in claim 1, characterized in that: The gold finger socket plate (2-5) is a strip plate and each set of gold finger sockets (2-6) is arranged along the length direction. Each gold finger socket plate (2-5) is arranged in parallel. Ventilation holes (2-8) are provided on the tray frame (2-1) and between adjacent gold finger socket plates (2-5).

3. The aging device for an alarm circuit board as described in claim 2, characterized in that: The pallet rack (2-1) is also equipped with handles (2-7) for moving the aging pallet (2).

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