Magnetic bar in-situ detection device

Abstract

The utility model provides a magnetic bar in-situ detection device, and relates to the technical field of medical instruments. Comprising a magnetic rod which is fixed on a program controller; the reed switch is placed in the protective shell for magnetic isolation, the protective shell does not have magnetic conductivity, and the reed switch and the magnetic bar are arranged in parallel; the two ends of the reed pipe are connected to the micro-control unit, the micro-control unit is arranged in the protective shell, a circuit is arranged in the micro-control unit, and the circuit outputs high or low level to an I / O interface of the micro-control unit; when the magnetic bar leaves the program controller, the reed switch is disconnected, the circuit is disconnected, a high level is output to the I / O interface of the micro-control unit, the micro-control unit determines that the magnetic bar leaves the program controller, and window popup prompt is carried out on a display screen of the program controller. According to the invention, whether the magnetic bar is in place can be detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, specifically, relate to a magnetic bar in position detection device. BACKGROUND

[0002] Human implantable ICM product, in certain state, or when the doctor needs relevant data collection, then need external factors to wake up, the key to wake up this product - high-precision magnetic bar, this magnetic bar must not be lost, otherwise will not wake up implantable ICM product, seriously affect the doctor for the patient's own relevant data collection, reading of disease, etc.

[0003] Therefore, it is necessary to design a detection device to prevent the loss of the magnetic bar used for waking up. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a magnetic bar in position detection device to solve the technical problem of the prior art.

[0005] To achieve the above object, the technical scheme adopted by the embodiment of the present application is as follows:

[0006] In a first aspect, the embodiment of the present application provides a magnetic bar in position detection device, which comprises a magnetic bar fixed to a program-controlled instrument, a reed tube placed in a protective shell for magnetic separation, the protective shell has no magnetic conductivity, and the reed tube is arranged in parallel with the magnetic bar. When the magnetic bar leaves the program-controlled instrument, the reed tube is disconnected, the circuit is disconnected, the circuit outputs a high level to the I / O interface of the micro control unit, the micro control unit determines that the magnetic bar leaves the program-controlled instrument, and a pop-up window is prompted on the display screen of the program-controlled instrument.

[0007] In an embodiment, the reed tube comprises a sealed glass tube filled with inert gas.

[0008] In an embodiment, the sealed glass tube is provided with two reed pieces arranged in overlap and having a gap, and the two reed pieces can be attracted and disconnected under the action of a magnetic field.

[0009] In an embodiment, the reed piece is plated with hard metal, the reed tube has a pin at both ends, the pin is plated with tin, and the pin is used to connect an external circuit.

[0010] In an embodiment, the circuit is provided with a shield for magnetic shielding; and a clock in the micro control unit is provided with a shield for magnetic shielding.

[0011] In an embodiment, the protective shell is provided with a groove for placing the dry reed, the groove is parallel to the magnetic rod, the groove is made of plastic material, and the protective shell is made of metal material.

[0012] In an embodiment, the distance between the magnetic rod and the dry reed is 0-20 mm.

[0013] In an embodiment, the distance between the dry reed and the circuit is 70-90 mm.

[0014] The beneficial effects of the present application are as follows: the magnetic action principle of the dry reed is adopted, two sides of the dry reed are connected to a micro control unit (MCU) for dynamic detection, a high or low level output is given to the MCU through the attraction and disconnection of the dry reed combined with the connection of the circuit, the MCU judges whether the magnetic rod is in place, and a pop-up prompt is realized on a display screen of a programmed instrument. The magnetic rod and the dry reed are arranged in parallel, and the magnetic rod, the dry reed and the circuit are kept at a certain distance to prevent the influence of the magnetic rod on the circuit. The protective shell is made of metal material but does not have magnetic conductivity, and can be magnetically isolated. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 A structural schematic diagram of a magnetic rod in-place detection device provided by an embodiment of the present application;

[0017] Figure 2 A structural schematic diagram of a magnetic rod in-place detection device provided by an embodiment of the present application;

[0018] Figure 3 A connection schematic diagram of a circuit in a magnetic rod in-place detection device provided by an embodiment of the present application;

[0019] Figure 4 A structural schematic diagram of a dry reed in a magnetic rod in-place detection device provided by an embodiment of the present application;

[0020] Figure 5 A structural schematic diagram of a protective shell in a magnetic rod in-place detection device provided by an embodiment of the present application. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] In the description of this application, it should be noted that if the terms "upper", "lower", etc. appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element 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.

[0024] Furthermore, the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Additionally, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0026] Figure 1 , Figure 2 This is a schematic diagram of the structure of a magnetic rod in-situ detection device provided in an embodiment of this application; as shown. Figure 1 , Figure 2 As shown, the method includes:

[0027] Magnetic rod 1, the magnetic rod is fixed to the programmable controller;

[0028] The dry reed 2 is placed in the protective shell 3 to be magnetically shielded, the protective shell 3 is non-magnetic, and the dry reed 2 is parallel to the magnetic rod 1.

[0029] The dry reed 2 is connected to the micro control unit 4, the micro control unit 4 is arranged in the protective shell 3, and the micro control unit 4 is provided with a circuit 5 (the circuit is shown as follows Figure 3 The circuit 5 outputs high or low level to the I / O interface of the micro control unit 4.

[0030] When the magnetic rod 1 leaves the range finder, the dry reed 2 is disconnected, the circuit 5 is disconnected, and high level is output to the I / O interface of the micro control unit 4, the micro control unit 4 determines that the magnetic rod 1 leaves the range finder, and a pop-up prompt is made on the display screen of the range finder.

[0031] The distance between the magnetic rod and the dry reed is 0-20mm; the distance between the dry reed and the circuit is 70-90mm, so as to prevent the magnetic rod from affecting the circuit.

[0032] As shown in the figure Figure 4 The dry reed 2 includes a sealed glass tube 6, the sealed glass tube 6 is filled with inert gas, and two reed pieces 7 are arranged in the sealed glass tube, the two reed pieces 7 are arranged in overlap and have a gap, and can be attracted and disconnected under the action of the magnetic field.

[0033] The contacts on the reed piece 7 are plated with hard metal, the dry reed has a pin 8 at both ends, the pin 8 is plated with tin, and the pin 8 is used to connect the external circuit.

[0034] Further, the circuit 5 is provided with a shield for magnetic shielding.

[0035] Further, the clock in the micro control unit 4 is provided with a shield for magnetic shielding.

[0036] As shown in the figure Figure 5 The protective shell 3 is provided with a groove 9 for placing the dry reed, the groove 9 is parallel to the magnetic rod 1, the groove 9 is made of plastic material, and the protective shell 3 is made of metal material.

[0037] The protective shell 3 itself is made of metal material, but this material does not have magnetic conductivity, so that the metal material protective shell without magnetic conductivity is used for magnetic shielding.

[0038] The distance between the magnetic rod and the dry reed is 0-20mm; the distance between the dry reed and the circuit is 70-90mm, so as to prevent the magnetic rod from affecting the circuit; the above-mentioned influence mainly refers to the magnetic field generated by the magnetic rod to disturb the nearby electrical appliances and circuits, cause the internal oscillation of the circuit, cause the level shift, amplitude reduction, current increase, data storage or data loss and other fault phenomena; affect the reception of the signal and the normal display of the electronic screen.

[0039] The magnetic bar itself has high magnetism and also has a certain volume; how to realize the detection of the physical existence of the magnetic bar under the premise of avoiding the high magnetism of the magnetic bar itself interfering with the circuit signal; first, the influence of the high magnetic magnetic bar on the circuit is overcome; second, the interference of the magnetic bar on the circuit signal is overcome, and the magnetic bar in place detection device provided by the embodiment of the application utilizes the characteristics of the inverse magnetic quality of the metal material shell, the distance between the magnetic bar and the circuit board, the placement direction and other factors to prevent the influence of the magnetic bar on the circuit signal, and the magnetic shielding mode of the shielding cover is adopted for some important circuits on the circuit board.

[0040] The working principle of the reed switch is that when there is no external magnetic field, the two reed pieces of the reed switch do not contact, and the reed switch is in an open state; when the external magnetic field is close, the magnetic field generates different polarities near the end point position of the reed piece, so that the reed piece is magnetized and attracted to each other.

[0041] The application characteristics of the reed switch in the magnetic bar in place detection device provided by the embodiment of the application include:

[0042] (1) Small volume and light weight, suitable for high-density assembly (preparation);

[0043] (2) Low consumption driving ability, even no driving ability consumption;

[0044] (3) Fast switching speed, reaching 1 / 10 of the switching action time of a common relay;

[0045] (4) Long service life, no mechanical friction of the contact, and not easy to produce sparks;

[0046] (5) Because the whole device is completely sealed, it is not affected by environmental factors.

[0047] When the changing interference magnetic flux passes through the conductive material, eddy current is generated therein, and magnetic flux in the opposite direction is generated, which can weaken the interference magnetic flux passing through the conductive shielding layer; the magnetic bar in place detection device provided by the embodiment of the application can wrap a layer of thin copper skin forming a short circuit ring outside the magnetic core of the high-frequency transformer, which can effectively inhibit the leakage of the leakage magnetic flux of the transformer; using a magnetic conductive material (iron plate or steel plate) to make the case of the equipment is a common method of magnetic shielding of the whole machine. This method not only can resist the entry of external interference magnetic flux into the electronic equipment, but also can avoid the leakage of internal magnetic flux. The better the magnetic conductivity of the shielding material, the thicker the plate, the less likely the case is to be magnetically saturated, and the better the shielding effect.

[0048] The magnetic field generated by the magnetic rod can interfere with nearby electrical appliances and circuits, causing internal oscillation of the circuit, resulting in phenomena such as level shift, amplitude reduction, current increase, data storage or data loss; it can affect signal reception changes and affect the normal display of the electronic screen. The magnetic rod in-place detection device provided by the embodiment of the application, when the magnetic rod is away, the two spring leaves of the reed switch do not contact, the reed switch is in an open state, and the circuit is in an open state, at this time, the circuit outputs a low level to the I / O interface of the micro control unit, the micro control unit determines that the magnetic rod is not in place, i.e., the magnetic rod is away from the program control instrument, and outputs a pop-up window prompt and displays it on the display screen of the program control instrument.

[0049] Therefore, when the magnetic rod is in place, the magnetic field generates different polarities near the end point position of the spring leaf, causing the spring leaf to be magnetized and attracted to each other, the two spring leaves of the reed switch are attracted and contacted, the reed switch is in a closed state, and the circuit is in a conducting state, at this time, the circuit outputs a high level to the I / O interface of the micro control unit, the micro control unit determines that the magnetic rod is in place, i.e., the magnetic rod is fixed to the program control instrument, and outputs a pop-up window prompt and displays it on the display screen of the program control instrument.

[0050] The magnetic rod in-place detection device provided by the embodiment of the application can be applied to the following scenarios:

[0051] Automatic assembly line: on an automatic assembly line, the magnetic rod in-place detection device can be used to detect whether the magnet is correctly installed to the specified position during the assembly process, to ensure the assembly quality. For example, in electronic product assembly, it is detected whether the magnet is correctly installed to the internal components of mobile phones, computers and other devices, to avoid abnormal device functions caused by missing magnet installation or installation out of place.

[0052] Mechanical manufacturing: in the mechanical manufacturing process, the magnetic rod in-place detection device can be used to detect the installation of the magnet in the mechanical parts, such as detecting whether the magnet in the motor rotor, generator rotor and other components is installed in place as required, to ensure the normal operation of the mechanical equipment.

[0053] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A magnetic bar in-place detection device, characterized by, The utility model relates to a magnetic switch, comprising: a magnetic bar fixed to a program-controlled instrument; a dry reed tube placed in a protective shell for magnetic isolation, the protective shell having no magnetic conductivity, the dry reed tube being arranged in parallel with the magnetic bar; the dry reed tube being connected to a micro control unit at both ends, the micro control unit being arranged in the protective shell, the micro control unit being provided with a circuit, the circuit outputting a high or low level to an I / O interface of the micro control unit; when the magnetic bar is away from the program-controlled instrument, the dry reed tube is disconnected, the circuit is disconnected, the circuit outputs a high level to the I / O interface of the micro control unit, the micro control unit determines that the magnetic bar is away from the program-controlled instrument, and a pop-up window is prompted on a display screen of the program-controlled instrument.

2. The apparatus of claim 1, wherein, The dry reed tube comprises a sealed glass tube filled with inert gas.

3. The apparatus of claim 2, wherein, The sealed glass tube is provided with two reed pieces arranged in overlap and having a gap, and can be attracted and disconnected under the action of a magnetic field.

4. The apparatus of claim 3, wherein, The reed pieces are plated with hard metal, the dry reed tube has pins at both ends, the pins are plated with tin, and the pins are used for connecting an external circuit.

5. The apparatus of claim 1, wherein, The circuit is provided with a shield for magnetic shielding, and a clock in the micro control unit is provided with a shield for magnetic shielding.

6. The apparatus of claim 1, wherein, The protective shell is provided with a groove for placing the dry reed tube, the groove being parallel with the magnetic bar, the groove being made of plastic, and the protective shell being made of metal.

7. The apparatus of claim 1, wherein, The distance between the magnetic bar and the dry reed tube is 0-20 mm.

8. The apparatus of claim 1, wherein, The distance between the dry reed tube and the circuit is 70-90 mm.

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