CN220572201U

CN220572201U - Isolated data transmission device

Info

Publication number: CN220572201U
Application number: CN202321757793.2U
Authority: CN
Inventors: 陆洋
Original assignee: Changchun Hengyue Electronics Co ltd
Current assignee: Changchun Hengyue Electronics Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-03-12
Anticipated expiration: 2033-07-06

Abstract

The utility model discloses an isolated data transmission device, which comprises a PCB, a device shell and a data line body, wherein a transmission wire with one end electrically connected with the PCB is arranged on the PCB; the device also comprises a movable plate, wherein the movable plate is arranged between the PCB and the device shell and moves between the PCB and the device shell, an upper contact and a lower contact are arranged on the movable plate, and an electrocardiograph lead is also connected to the upper contact; the lower contact is connected with the end part of the transmission wire, which is far away from the PCB. In the utility model, when an electrocardiogram is detected, a human body is physically separated from a metal contact point on the device shell; when data transmission or charging is carried out, the lead wire is separated from the PCB, so that the human body and the power supply can be completely isolated, and the safety of the human body is effectively protected; and no isolation circuit is needed, so that the dynamic electrocardiograph adopts a miniaturized structure in design.

Description

Isolated data transmission device

Technical Field

The utility model relates to the technical field of data transmission, in particular to an isolated data transmission device.

Background

Medical devices are increasingly used in the lives of people. The national safety of use for medical devices has increased more stringent standards. In the latest national medical instrument detection regulations, the electrolyte strength detection of dynamic electrocardiographs is increased.

The working flow of the dynamic electrocardiogram has two states, as shown in figure 1, one state is that the dynamic electrocardiogram is connected to a human body through a lead wire when the electrocardiogram is detected, and the other state is that the dynamic electrocardiogram is connected to a computer, and the recorded electrocardiogram is transmitted to the computer. Therefore, the recorder is generally provided with two jacks, one jack is a lead wire connected with a human body, and the other jack is a USB port connected with a computer. In the latest requirements, it is specified that a voltage of 1500 v needs to be applied to two jacks, and that breakdown cannot be achieved when a voltage is applied. In general, this is difficult to achieve. Because dynamic electrocardiography requires miniaturization in design. It is difficult to place too many isolation circuits inside.

Disclosure of Invention

The utility model aims to provide an isolated data transmission device for solving the problems in the background technology.

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

the isolated data transmission device comprises a PCB, a device shell and a data line body, wherein a transmission wire with one end electrically connected with the PCB is arranged on the PCB; the portable electronic device comprises a device shell, a PCB, a movable plate, an upper contact and a lower contact, wherein the movable plate is arranged between the PCB and the device shell and moves between the PCB and the device shell, the upper contact and the PCB contact can be in electrical contact, and an electrocardiograph lead wire connected with a human body is further connected to the upper contact; the lower contact is connected with the end of the transmission wire far away from the PCB board, and corresponds to the metal contact point, and when the lower contact is close to the device shell, the lower contact can be in electrical contact with the metal contact point.

Based on the technical scheme, the utility model also provides the following optional technical schemes:

in one alternative: still be provided with two at least spring spare between fly leaf and the device shell, the one end of spring spare is connected with the fly leaf and the other end is connected with the device shell, is provided with at least one strong magnet piece on the fly leaf, is provided with the electromagnetic iron piece that aligns with strong magnet piece on the data line body, and the electromagnetic iron piece can produce the magnetic attraction with between the strong magnet piece after the circular telegram.

In one alternative: the spring pieces are four and are respectively positioned at four corners of the movable plate.

In one alternative: the number of the lower contacts on the movable plate, the number of the metal contacts on the device shell and the number of the data line contacts on the data line body are the same, the metal contacts are bidirectional contacts, and two ends of the metal contacts can be respectively in electric contact connection with the corresponding lower contacts and the corresponding data line contacts.

In one alternative: the PCB is provided with a welding disc corresponding to the lower contact, and the end part of the transmission wire, which is far away from the movable plate, is welded on the corresponding welding disc.

Compared with the prior art, the utility model has the following beneficial effects:

the separation and reunion of the electric contact in the utility model, when detecting the electrocardiogram, the metal contact on the human body and the device shell are separated physically; when data transmission or charging is carried out, the lead wire is separated from the PCB, so that the human body and the power supply can be completely isolated, and the safety of the human body is effectively protected; and no isolation circuit is needed, so that the dynamic electrocardiograph adopts a miniaturized structure in design.

Drawings

Fig. 1 is a schematic workflow diagram of a dynamic electrocardiogram.

Fig. 2 is a schematic diagram of the data transmission device according to an embodiment of the utility model.

Reference numerals annotate: PCB board 100, bonding pad 110, PCB board contact 120, movable board 200, upper contact 210, lower contact 220, ferromagnetic block 230, device housing 300, metal contact 310, data wire body 400, electromagnet block 410, data wire contact 420, transmission wire 500, cardiac electrical lead 600, spring member 700.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and examples; in the drawings or description, similar or identical parts are provided with the same reference numerals, and in practical applications, the shape, thickness or height of each part may be enlarged or reduced. The examples set forth herein are intended to be illustrative of the utility model and are not intended to limit the scope of the utility model. Any obvious modifications or alterations to the utility model, as would be apparent, are made without departing from the spirit and scope of the present utility model.

In one embodiment, as shown in fig. 2, an isolated data transmission device includes a PCB board 100, a device housing 300 and a data line body 400, wherein a transmission wire 500 with one end electrically connected to the PCB board 100 is provided on the PCB board 100, a PCB board contact 120 is further provided on the PCB board 100, a metal contact 310 is provided on the device housing 300, and a data line contact 420 capable of electrically contacting the metal contact 310 is provided on the data line body 400; the portable device further comprises a movable plate 200, wherein the movable plate 200 is arranged between the PCB 100 and the device housing 300 and moves between the two, an upper contact 210 and a lower contact 220 are arranged on the movable plate 200, the upper contact 210 and the PCB contact 120 can be in electrical contact, and an electrocardiograph lead 600 connected with a human body is also connected to the upper contact 210; the lower contact 220 is connected to an end of the transmission wire 500 remote from the PCB board 100 and the lower contact 220 corresponds to the metal contact 310, and the lower contact 220 can be in electrical contact with the metal contact 310 when the lower contact 220 is close to the device case 300;

in the embodiment of the utility model; when the movable plate 200 is in the initial state, the movable plate 200 approaches to one side of the PCB 100, and the upper contact 210 can be electrically contacted with the PCB contact 120, so that the metal contact 310 on the device housing 300 and the PCB 100 cannot be electrically connected, and physical separation between a human body and the metal contact 310 is realized; when the device case 300 is connected with the data line body 400, the movable plate 200 is close to the device case 300 and separated from the PCB 100, the lower contact 220 is in contact with the metal contact 310 to achieve electrical connection, since the lower contact 220 is connected with the PCB 100 through the transmission wire 500, the PCB 100 can be charged or data transmitted through the external data line plug, and since the PCB contact 120 is separated from the upper contact 210, the human body and the power supply are completely isolated; thereby effectively protecting the safety of human body.

In one embodiment, as shown in fig. 2, at least two spring members 700 are further disposed between the movable plate 200 and the device housing 300, one end of each spring member 700 is connected to the movable plate 200, the other end is connected to the device housing 300, at least one ferromagnetic block 230 is disposed on the movable plate 200, an electromagnet block 410 aligned with the ferromagnetic block 230 is disposed on the data line body 400, and the electromagnet block 410 can generate a magnetic attraction force with the ferromagnetic block 230 after being electrified; in the embodiment of the present utility model, in the initial state, the movable plate 200 is positioned close to the PCB 100 under the elastic force of the spring member 700; when the device case 300 is connected to the data line body 400, the electromagnet block 410 is energized to have magnetism, and the electromagnet block 410 and the strong magnet block 230 generate magnetic attraction, so that the movable plate 200 moves to one side of the device case 300 against the elastic force of the spring member 700.

In one embodiment, as shown in fig. 2, the spring members 700 are four and are respectively positioned at four corners of the movable plate 200; in the embodiment of the present utility model, the spring members 700 are connected to the four corners of the movable plate 200, so that the movable plate 200 is stably movable between the PCB 100 and the device case 300.

In one embodiment, as shown in fig. 2, the number of the lower contacts 220 on the movable plate 200, the number of the metal contacts 310 on the device housing 300, and the number of the data line contacts 420 on the data line body 400 are the same, the metal contacts 310 are bidirectional contacts, and both ends of the metal contacts can be electrically connected with the corresponding lower contacts 220 and the corresponding data line contacts 420.

In one embodiment, as shown in fig. 2, the PCB 100 has a soldering land 110 corresponding to the lower contact 220, and the end of the transmission wire 500 remote from the movable plate 200 is soldered to the corresponding soldering land 110, thereby physically achieving fixation.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The isolated data transmission device comprises a PCB, a device shell and a data line body, wherein a transmission wire with one end electrically connected with the PCB is arranged on the PCB; the device is characterized by further comprising a movable plate, wherein the movable plate is arranged between the PCB and the device shell and moves between the PCB and the device shell, an upper contact and a lower contact are arranged on the movable plate, the upper contact can be in electrical contact with the PCB contact, and an electrocardiograph lead connected with a human body is further connected to the upper contact; the lower contact is connected with the end of the transmission wire far away from the PCB board, and corresponds to the metal contact point, and when the lower contact is close to the device shell, the lower contact can be in electrical contact with the metal contact point.

2. The isolated data transmission device according to claim 1, wherein at least two spring members are further provided between the movable plate and the device housing, one end of each spring member is connected to the movable plate, the other end of each spring member is connected to the device housing, at least one ferromagnetic block is provided on the movable plate, an electromagnet block aligned with the ferromagnetic block is provided on the data line body, and a magnetic attraction force is generated between the electromagnet block and the ferromagnetic block after the electromagnet block is energized.

3. The isolated data transmission device of claim 2, wherein the spring members are four and are located at four corners of the movable plate, respectively.

4. The isolated data transmission device according to claim 1, wherein the number of the lower contacts on the movable plate, the number of the metal contacts on the device housing and the number of the data line contacts on the data line body are the same, the metal contacts are bidirectional contacts, and both ends of the metal contacts can be respectively electrically connected with the corresponding lower contacts and the corresponding data line contacts.

5. The isolated data transmission device of claim 1, wherein the PCB board has a bonding pad corresponding to the lower contact, and an end of the transmission wire remote from the movable plate is bonded to the corresponding bonding pad.