Magnetism detecting device

Abstract

The utility model relates to detection equipment technical field discloses a magnet magnetic detection device, include: power module, power module has current output terminal and current input terminal, electromagnet, electromagnet includes fixedly arranged magnetic core, winding on the coil L1 of magnetic core and first connecting terminal and second connecting terminal, first connecting terminal and second connecting terminal are electrically connected with both ends of coil L1, and one end of coil L1 and the one end of second connecting terminal are opposite the magnetic core and set up, when first connecting terminal links with current input terminal, second connecting terminal links with current output terminal, when second connecting terminal links with current input terminal, first connecting terminal links with current output terminal, the utility model provides a magnet magnetic detection device, after power module and electromagnet interconnect, power module gives electromagnet one power on and can quickly detect the magnetism of magnet, and the detection cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a magnet magnetic detection device. Background Technology

[0002] Currently, the magnet assembly process relies on specialized equipment for polarity and magnetic detection. However, such equipment is large, expensive, and requires professional personnel to operate, making it unsuitable for the high-speed assembly needs of production lines.

[0003] In practical applications of miniature magnets, the magnetic markings are invisible to the naked eye, and reverse polarity can easily occur during manual assembly, leading to product performance failure. Furthermore, detecting different polarities requires replacing the detection elements of the equipment and readjusting the settings, which is complex and inefficient.

[0004] Therefore, how to achieve low-cost and rapid polarity detection on the production line, and how to quickly complete the detection of different polarities, has become an urgent technical problem to be solved. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a magnet magnetic detection device that can detect polarity quickly and at low cost, and can quickly complete the detection of different polarities.

[0006] The above-mentioned technical problems are solved by the following technical solutions: A magnet magnetic detection device includes: a power supply module having a current output terminal and a current input terminal; an electromagnet including a fixed magnetic core, a coil L1 wound on the magnetic core, and a first connection terminal and a second connection terminal; the first connection terminal and the second connection terminal are electrically connected to both ends of the coil L1, and the end of the coil L1 connected to the first connection terminal and the end connected to the second connection terminal are disposed opposite to the magnetic core; when the first connection terminal is connected to the current input terminal, the second connection terminal is connected to the current output terminal; when the second connection terminal is connected to the current input terminal, the first connection terminal is connected to the current output terminal.

[0007] The magnetic detection device of this utility model has the following advantages compared with the prior art: The magnet magnetic detection device provided by this utility model consists of a power supply module with current output terminals and current input terminals, and an electromagnet with first connection terminals and second connection terminals. After the two are connected to each other, the power supply module can quickly detect the magnetism of the magnet by energizing the electromagnet based on the principle of magnetic attraction between opposite poles, resulting in low detection cost. In addition, since the end of the electromagnet's coil L1 connected to the first connection terminal and the end connected to the second connection terminal are positioned opposite to the magnetic core, different magnetic properties can be detected simply by swapping the connection objects of the first and second connection terminals with the current output terminals and the current input terminals, without the need for additional equipment debugging, and different polarity detection can be completed quickly.

[0008] In one embodiment, the magnetic core is vertically fixed on the magnet magnetic detection device.

[0009] In one embodiment, the power supply module includes: a power supply electrically connected to the current output terminal; and a switching unit, wherein a first terminal of the switching unit is electrically connected to the current input terminal, a second terminal of the switching unit is grounded, and a controlled terminal of the switching unit is electrically connected to the power supply.

[0010] In one embodiment, the switching unit includes a first transistor Q1, the base of the first transistor Q1 being electrically connected to the power supply, the collector of the first transistor Q1 being electrically connected to the current input terminal, and the emitter of the first transistor Q1 being grounded.

[0011] In one embodiment, the switching unit includes a first transistor Q1 and a manual switch K1. The base of the first transistor Q1 is electrically connected to the first terminal of the manual switch K1, the collector of the first transistor Q1 is electrically connected to the current input terminal, the emitter of the first transistor Q1 is grounded, and the second terminal of the manual switch K1 is electrically connected to the power supply.

[0012] In one embodiment, the switching unit further includes a first resistor R1, the first end of which is electrically connected to the base of the first transistor Q1, and the second end of which is electrically connected to the first end of the manual switch K1.

[0013] In one embodiment, the manual switch K1 is a button, and when the button is pressed, the first and second ends of the manual switch K1 are connected.

[0014] In one embodiment, the power supply module further includes a first capacitor C1, the first end of which is electrically connected to the power supply and the controlled end of the switching unit, and the second end of which is grounded.

[0015] In one embodiment, the power supply module further includes a second resistor R2, the first end of which is electrically connected to the power supply, and the second end of which is electrically connected to the current output terminal.

[0016] In one embodiment, the magnetic core is a cylindrical iron tube. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a magnet magnetic detection device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of one connection of a magnet magnetic detection device provided in an embodiment of the present invention.

[0019] Label Explanation: 1. Power supply module; 11. Current output terminal; 12. Current input terminal; 13. Switching unit; 2. Electromagnet; 21. First connection terminal; 22. Second connection terminal. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all 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.

[0021] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do 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. Therefore, they should not be construed as limitations on this application.

[0022] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] See Figures 1 to 2 , Figure 1 A schematic diagram of a magnet magnetic detection device provided in an embodiment of the present invention is shown; Figure 2 This diagram illustrates one connection of a magnet magnetic detection device according to an embodiment of the present invention.

[0025] refer to Figures 1-2 This utility model provides a magnetic detection device, comprising: a power supply module having a current output terminal and a current input terminal; an electromagnet including a fixed magnetic core, a coil L1 wound on the magnetic core, and a first connection terminal and a second connection terminal; the first connection terminal and the second connection terminal are electrically connected to both ends of the coil L1, and the end of the coil L1 connected to the first connection terminal and the end connected to the second connection terminal are disposed opposite to the magnetic core; when the first connection terminal is connected to the current input terminal, the second connection terminal is connected to the current output terminal; when the second connection terminal is connected to the current input terminal, the first connection terminal is connected to the current output terminal.

[0026] The magnet detection device provided in this embodiment uses a power supply module with current output terminals and current input terminals, and an electromagnet with first connection terminals and second connection terminals. After the two are connected, the power supply module can quickly detect the magnetism of the magnet by energizing the electromagnet based on the principle of magnetic attraction between opposite poles, resulting in low detection cost. In addition, since the end of the electromagnet's coil L1 connected to the first connection terminal and the end connected to the second connection terminal are positioned opposite to the magnetic core, different magnetic properties can be detected simply by swapping the connection objects of the first and second connection terminals with the current output terminals and the current input terminals, without the need for additional equipment debugging, and different polarity detection can be completed quickly.

[0027] Specifically, refer to Figure 2 The current output terminal of the power supply module is connected to the first connection terminal of the electromagnet, and the current input terminal of the power supply module is connected to the second connection terminal of the electromagnet. At this time, according to the right-hand screw rule, the upper part of the electromagnet is the S pole, which can be used to quickly detect magnets with N pole polarity.

[0028] Conversely, if the current output terminal of the power supply module is connected to the second connection terminal of the electromagnet, and the current input terminal of the power supply module is connected to the first connection terminal of the electromagnet, then according to the right-hand screw rule, the top of the electromagnet is the N pole, which can be used to quickly detect magnets with S pole polarity.

[0029] It should be noted that, since the magnetic core is fixed, only the unfixed end of the electromagnet can be used for magnetic detection; otherwise, it is easily affected by magnetic force and may become loose.

[0030] In one embodiment, reference Figure 2 The magnetic core is vertically fixed on the magnet magnetic detection device.

[0031] It is understandable that if the magnetic core is fixed horizontally, the operator may easily confuse the polarity of the two sides during testing, leading to testing errors.

[0032] In one embodiment, the power supply module includes: a power supply electrically connected to the current output terminal; and a switching unit, wherein a first terminal of the switching unit is electrically connected to the current input terminal, a second terminal of the switching unit is grounded, and a controlled terminal of the switching unit is electrically connected to the power supply.

[0033] Specifically, in production line applications, the magnetism of the magnet can be detected simply by energizing the switching unit.

[0034] In one embodiment, reference Figures 1-2The switching unit includes a first transistor Q1, the base of the first transistor Q1 is electrically connected to the power supply, the collector of the first transistor Q1 is electrically connected to the current input terminal, and the emitter of the first transistor Q1 is grounded.

[0035] Specifically, when the power supply is working, the VCC voltage reaches the base of the first transistor Q1, controlling the first transistor Q1 to be connected. At this time, the VCC voltage passes through the coil L1, and the collector and emitter of the first transistor Q1 are connected to ground, so that current flows through the coil L1.

[0036] In one embodiment, reference Figure 1-2 The switching unit includes a first transistor Q1 and a manual switch K1. The base of the first transistor Q1 is electrically connected to the first terminal of the manual switch K1, the collector of the first transistor Q1 is electrically connected to the current input terminal, the emitter of the first transistor Q1 is grounded, and the second terminal of the manual switch K1 is electrically connected to the power supply.

[0037] Specifically, when the power supply is working, the VCC voltage will reach the base of the first transistor Q1 only after the manual switch K1 is closed, thereby manually controlling whether current flows through the coil L1.

[0038] In one embodiment, reference Figure 1-2 To limit the current output from the power supply to the first transistor Q1, the switching unit further includes a first resistor R1. The first end of the first resistor R1 is electrically connected to the base of the first transistor Q1, and the second end of the first resistor R1 is electrically connected to the first end of the manual switch K1.

[0039] In one embodiment, reference Figure 1-2 To facilitate use by testing personnel, the manual switch K1 is a button. When the button is pressed, the first and second ends of the manual switch K1 are connected.

[0040] In one embodiment, reference Figure 1-2 To filter the voltage output of the power supply, the power supply module also includes a first capacitor C1. The first end of the first capacitor C1 is electrically connected to the power supply and the controlled end of the switching unit, and the second end of the first capacitor C1 is grounded.

[0041] In one embodiment, reference Figure 1-2 To limit the current output from the power supply to coil L1, the power supply module further includes a second resistor R2. The first end of the second resistor R2 is electrically connected to the power supply, and the second end of the second resistor R2 is electrically connected to the current output terminal.

[0042] In one embodiment, the magnetic core is a cylindrical iron tube.

[0043] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0044] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A magnet magnetic detection device, characterized in that, include: The power supply module has a current output terminal and a current input terminal; An electromagnet includes a fixed magnetic core, a coil L1 wound on the magnetic core, and a first connecting terminal and a second connecting terminal; the first connecting terminal and the second connecting terminal are electrically connected to both ends of the coil L1, and the end of the coil L1 connected to the first connecting terminal and the end connected to the second connecting terminal are arranged opposite to the magnetic core. When the first connection terminal is connected to the current input terminal, the second connection terminal is connected to the current output terminal; When the second connection terminal is connected to the current input terminal, the first connection terminal is connected to the current output terminal.

2. The magnet magnetic detection device according to claim 1, characterized in that, The magnetic core is vertically fixed on the magnet magnetic detection device.

3. The magnet magnetic detection device according to claim 1, characterized in that, The power supply module includes: The power supply is electrically connected to the current output terminal; A switching unit, wherein the first end of the switching unit is electrically connected to the current input terminal, the second end of the switching unit is grounded, and the controlled end of the switching unit is electrically connected to the power supply.

4. The magnet magnetic detection device according to claim 3, characterized in that, The switching unit includes a first transistor Q1, the base of the first transistor Q1 is electrically connected to the power supply, the collector of the first transistor Q1 is electrically connected to the current input terminal, and the emitter of the first transistor Q1 is grounded.

5. A magnet magnetic detection device according to claim 3, characterized in that, The switching unit includes a first transistor Q1 and a manual switch K1. The base of the first transistor Q1 is electrically connected to the first terminal of the manual switch K1, the collector of the first transistor Q1 is electrically connected to the current input terminal, the emitter of the first transistor Q1 is grounded, and the second terminal of the manual switch K1 is electrically connected to the power supply.

6. A magnet magnetic detection device according to claim 5, characterized in that, The switching unit further includes a first resistor R1, the first end of which is electrically connected to the base of the first transistor Q1, and the second end of which is electrically connected to the first end of the manual switch K1.

7. A magnet magnetic detection device according to claim 5, characterized in that, The manual switch K1 is a button. When the button is pressed, the first and second terminals of the manual switch K1 are connected.

8. A magnet magnetic detection device according to claim 3, characterized in that, The power supply module also includes a first capacitor C1, the first end of which is electrically connected to the power supply and the controlled end of the switching unit, and the second end of which is grounded.

9. A magnet magnetic detection device according to claim 3, characterized in that, The power supply module also includes a second resistor R2, the first end of which is electrically connected to the power source, and the second end of which is electrically connected to the current output terminal.

10. A magnet magnetic detection device according to claim 1, characterized in that, The magnetic core is a cylindrical iron tube.

Images