A high magnetic flux electromagnetic release and its magnetic flux automatic detection equipment

Abstract

The present invention discloses a high-flux electromagnetic release, comprising: a static contact, the static contact abuts against a moving contact of a circuit breaker; a connecting plate, the connecting plate is electrically connected to the static contact, and the connecting plate is used to magnetize and generate a magnetic field after power is applied; a yoke, the yoke is arranged around the connecting plate and wraps the connecting plate; an armature, the armature is hinged to the yoke; two connecting holes, the two connecting holes are arranged between the yoke and the connecting plate; two rivets, the two rivets are respectively connected to the two connecting holes, and are used to connect the connecting plate and the yoke to form a passage, and cooperate with the connecting plate to form a double magnetic field. The present invention also discloses a magnetic flux automatic detection device, which can perform magnetic flux detection on the above-mentioned high-flux electromagnetic release. The present invention has the following beneficial effects: on the basis of the original snap-on electromagnetic release, this high-flux electromagnetic release greatly increases the magnetic flux, ensuring that the opening and closing action has a higher speed and sensitivity.

Description

Technical Field

[0001] The invention relates to a high magnetic flux electromagnetic release and magnetic flux automatic detection equipment thereof. Background Art

[0002] A snap-on electromagnetic release is an electromagnetic device that is usually used to control or cut off the current in a circuit. It consists of an electromagnet and a mechanical wrench. When the electromagnet is energized, it generates a magnetic field to attract or release the mechanical wrench, thereby opening and closing the switch or circuit breaker. This device is often used in electrical systems. For example, when a circuit is interrupted or fails, the electromagnetic release can be controlled to cut off the current to ensure the safe operation of the system.

[0003] Electromagnetic releases are commonly used in power systems, industrial automation, electrical control and safety equipment. They act like automatic switches and can quickly cut off circuits to prevent accidents or damage to equipment.

[0004] The existing snap-on electromagnetic release usually generates a magnetic field when an armature cooperates with a static contact and a connecting plate is energized. When the current increases to a critical value, the attraction generated by the magnetic field of the connecting plate overcomes the elastic force of the spring connected to the armature, driving the armature to swing and cut off the circuit breaker.

[0005] However, the existing snap-on electromagnetic release has a smaller magnetic field flux when in use than the electromagnetic release equipped with the electromagnet push rod, which makes the speed and sensitivity of its opening and closing action poor. In addition, the reduction of magnetic flux will directly affect the magnitude of the electromagnetic attraction and release force, and affect the limit current size and delay degree corresponding to the opening and closing action.

[0006] In addition, the existing detection of electromagnetic releases is usually carried out through the Hall effect sensor detection method. The principle of this detection is: the Hall effect sensor works based on the Hall effect, that is, when the current passes through the conductor, a voltage is generated in the direction perpendicular to the current and the magnetic field. The Hall effect sensor can directly measure the magnetic field strength, thereby indirectly measuring the magnetic flux. When in use, the two ends of the electromagnetic release are energized separately, so that the electromagnetic release generates a corresponding magnetic field due to the energization. After that, the Hall element is measured at different points of the electromagnetic release.

[0007] As described above, the staff needs to place the electromagnetic release at a position where the wire can be connected, and energize the electromagnetic release. It is also necessary to move the Hall element and perform corresponding measurements on different positions of the electromagnetic release. This process is relatively cumbersome, and when the number of electromagnetic releases is large, the labor cost is high. Summary of the invention

[0008] The purpose of the present invention is to provide a high-flux electromagnetic release which, based on the original snap-on electromagnetic release, greatly increases the magnetic flux and ensures that the opening and closing action has a higher speed and sensitivity.

[0009] The above technical objectives of the present invention are achieved through the following technical solutions:

[0010] A high-flux electromagnetic release comprises: a static contact, which is in contact with a moving contact of a circuit breaker; a connecting plate, which is electrically connected to the static contact and is used to be magnetized and generate a magnetic field after being energized; a yoke, which is arranged around the connecting plate and wraps the connecting plate; an armature, which is hinged to the yoke; two connecting holes, which are arranged between the yoke and the connecting plate; and two rivets, which are respectively connected to the two connecting holes and are used to connect the connecting plate and the yoke to form a passage, and cooperate with the connecting plate to form a double magnetic field.

[0011] The present invention is further configured as follows: the distance between the two rivets is S, the distance between the two rivets and the connecting plate on the same horizontal plane is S, and S=Sa, where a is any value in the range.

[0012] The present invention is further configured as follows: the value of a is 6.8.

[0013] The present invention is further configured such that when the static contact and the moving contact are in contact and energized, the current passes through the static contact and the connecting plate and forms a path between the two rivets, so that the connecting plate is magnetized to generate a magnetic field, and a high magnetic area is formed between the two rivets.

[0014] The present invention is further configured such that: when the current on the connecting plate increases to a critical value, the armature is attracted by the high magnetic region and swings, driving the moving contact to separate from the static contact, thereby opening the circuit breaker.

[0015] Another object of the present invention is to provide an automatic magnetic flux detection device, which can realize fully automatic magnetic flux measurement of a snap-on electromagnetic release based on its structural design.

[0016] A magnetic flux automatic detection device is used to perform magnetic flux detection on the above-mentioned high magnetic flux electromagnetic release.

[0017] In summary, the present invention has the following beneficial effects: based on the original snap-on electromagnetic release, the high magnetic flux electromagnetic release greatly increases the magnetic flux, ensuring that the opening and closing action has a higher speed and sensitivity. The magnetic flux automatic detection equipment can realize the full-automatic measurement of the magnetic flux of the snap-on electromagnetic release based on the structural design of the snap-on electromagnetic release. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural schematic diagram of a miniature circuit breaker;

[0019] Figure 2 for Figure 1 A front view of

[0020] Figure 3 It is a structural schematic diagram of the electromagnetic release;

[0021] Figure 4 for Figure 3 Exploded view of;

[0022] Figure 5 It is the front view of the electromagnetic release;

[0023] Figure 6 for Figure 5 Schematic diagram of current connection relationship in;

[0024] Figure 7 It is a structural schematic diagram of magnetic flux automatic detection equipment;

[0025] Figure 8 for Figure 7 A rear view structural diagram of ;

[0026] Fig. 9 for Figure 7 A top view of

[0027] Fig.10 for Figure 7 A magnified view of area A;

[0028] Fig.11 for Figure 7 The schematic diagram of the structure after deleting the rack and other components;

[0029] Fig.12 is a schematic diagram of the structure of the groove structure;

[0030] Fig.13 It is a schematic diagram of the structure of the groove structure viewed from above;

[0031] Fig.14 This is the area division diagram when the cam rotates to different positions.

[0032] Figure numerals: 1, circuit breaker; 2, arc extinguishing chamber; 3, static contact; 4, connecting plate; 5, moving contact; 6, yoke; 7, armature; 8, connecting hole; 9, rivet; 10, frame; 11, workbench; 12, fixing frame; 13, Hall element; 14, stepping motor; 15, driving shaft; 16, cam; 17, frame; 18, fourth area; 19, driving spring; 20, driving rod; 21, driving plate ; 22. movable frame; 23. sliding rod; 24. gear; 25. rocker arm; 26. electrode shaft; 27. source voltage box; 28. first area; 29. ​​lifting plate; 30. groove; 31. triangular block; 32. push plate; 33. cylinder; 34. guide rail; 35. input frame; 36. guide surface; 37. second area; 38. third area; 39. pressing plate; 40. pressing spring; 41. marker. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0035] In the description of the present invention, "multiple" means two or more than two, unless otherwise clearly defined. In the present invention, unless otherwise clearly defined and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0037] like Figure 1As shown in FIG. 1 , a high magnetic flux electromagnetic release is arranged above the arc extinguishing chamber 2 in the miniature circuit breaker 1 and is separated from the arc extinguishing chamber 2. The current flow is as follows: Figure 2 The arrow direction is shown in the figure. Figure 2 The circuit breaker 1 is shown in the open state.

[0038] Among them, Figure 1 , Figure 2 As shown, a high magnetic flux electromagnetic release includes a static contact 3, and the static contact 3 is connected to a connecting plate 4. The static contact 3 contacts the moving contact 5 of the circuit breaker 1 and is energized. The connecting plate 4 is used to magnetize and generate a magnetic field after being energized. A yoke 6 for supporting the connecting plate 4 is also provided outside the connecting plate 4. The yoke 6 is placed around the connecting plate 4 and wraps the connecting plate 4 to produce a magnetic field shielding effect. An armature 7 is hinged on one side of the yoke 6, and a spring is provided between the armature 7 and the yoke 6 (not shown in the figure).

[0039] The core technical solution of this application is as follows:

[0040] like Figure 3 As shown, in order to solve the problem of insufficient magnetic flux in the electromagnetic release compared to the magnetic coil, the force and The problem of low sensitivity In the present application, two connection holes 8 are provided on the yoke 6 and the connection plate 4. Rivets 9 are connected in the connection holes 8 to fix the connection plate 4 and the yoke 6 to each other.

[0041] like Figure 4 , Figure 5 As shown, the distance between the two rivets 9 is S1, and the distance between the rivet 9 and the connecting plate 4 on the same horizontal plane is S2. S1=S2*a. a is any value in 3-7. The best value of a is 6.8. If a is too large, the magnetic field will be easily dispersed, resulting in insufficient magnetic flux. If a is too small, the magnetic field area will be small, the area covered by the magnetic attraction will be small, and the sensitivity will be low. The bottoms of the two rivets 9 are connected to the yoke 6. The yoke 6 is made of soft iron material. A passage is formed between the two rivets 9 and the yoke 6, thereby forming a Figure 6 The parallel circuit shown in FIG. The current direction of the parallel circuit is from one end of the connecting plate 4 to the other end, from one end of the rivet 9 of the yoke 6 to the other end, and then converges and outputs from the connecting plate 4 .

[0042] As mentioned above, when the static contact 3 and the moving contact 5 are in contact and energized, the current passes through the static contact 3 and the connecting plate 4, and forms a path between the rivets 9, generating a magnetic field after magnetization. At the same time, the connecting plate 4 generates a magnetic field when energized. According to the magnetic flux formula: Φ=BS, S is a constant per unit area. The larger B is, the greater the magnetic flux is. There is a dual magnetic field structure between the two rivets 9, and the number of magnetic flux lines passing through the unit area is large, so that the magnetic flux in this area is large.

[0043] The area between the two rivets 9 is a high magnetic area, which is directly opposite to the position where the armature 7 swings.

[0044] When the current on the connecting plate 4 increases to an overload state, the current intensity reaches a limit value. At this time, the armature 7 is attracted by the high magnetic area and quickly overcomes the spring force between the armature 7 and the yoke 6, so that the armature 7 rotates due to the magnetic attraction, and the swing arm connected to the moving contact 5 is separated from the static contact 3 by the force of the armature 7, and the circuit breaker 1 is opened and no longer energized.

[0045] In the above process, the problem of small magnetic flux caused by magnetic field dispersion when the electromagnetic releaser with a magnet coil structure is modified into a snap-on electromagnetic releaser with a small volume and simple process is effectively solved. The present application provides a dual magnetic field structure by setting two rivets 9 to fix the yoke 6 and the connecting plate 4, and effectively sets a high magnetic flux magnetic field for the swinging position of the armature 7, thereby solving the problems of low sensitivity and small opening and closing force caused by the modification to the snap-on electromagnetic releaser.

[0046] In order to verify the effect of the high flux electromagnetic release of the present application, the present application provides an experimental report, which proves that the magnetic field strength of the single-rivet-point yoke is approximately 7T under a short-circuit current of 6KA, and the magnetic field strength of the double-rivet-point yoke under the same conditions is approximately 50T. The experiment shows that the on-off time / arcing time of the single-rivet-point yoke structure is generally 15mS / 8mS, and the on-off time / arcing time of the double-rivet-point yoke structure with a similar structure is generally 8mS / 4mS.

[0047] For specific data, please refer to the following link:

[0048] https: / / pan.baidu.com / s / 1AZ5qdQjjmizj152i4izV1A?pwd=8yd6

[0049] Corresponding to the above-mentioned snap-on electromagnetic release, Figure 7 As shown, the present application also provides a magnetic flux automatic detection device dedicated to a snap-on electromagnetic release, comprising: a frame 10. The frame 10 is provided with a workbench 11 for placing the electromagnetic release to be detected.

[0050] like Figure 7 , Figure 8 As shown, in order to measure the corresponding magnetic flux in the area between the rivets 9 of the above-mentioned electromagnetic release technical purpose.The present application is provided with a horizontally arranged fixed frame 12 on one side of the frame 10. A Hall element 13 is slidably arranged on the fixed frame 12, and the Hall element 13 can slide back and forth on the fixed frame 12 and face the measurement area required by the electromagnetic release. The technical principle of the Hall element 13 measuring magnetic flux is the existing technology and will not be described in detail. Among them, a stepper motor 14 is arranged on one side of the Hall element 13. The stepper motor 14 is connected to a drive shaft 15. A cam 16 is connected to the end of the drive shaft 15. A frame 17 is arranged outside the cam 16. The frame 17 is fixedly connected to the Hall element 13 and moves with the movement of the Hall element 13.

[0051] like Figure 7 The cam 16 is in the position shown in FIG. 1 . At this time, the distal end of the cam 16 abuts against the right side of the frame 17, so that the frame 17 drives the Hall element 13 to move rightward to the position shown in FIG. Figure 7 At the position shown, at this time, the measurement position of the Hall element 13 is facing the area of ​​the electromagnetic release rivet 9, and then the magnetic flux in the area of ​​the rivet 9 is measured. At this time, the position is the fourth area 18.

[0052] like Fig. 9 , Fig.10 As shown, this is for the technical purpose of de-energizing the measured electromagnetic release. The present application is provided with a driving spring 19 and a driving rod 20 between the fixed frame 12 and the frame 17. The driving rod 20 is inserted into the fixed frame 12, and a driving plate 21 is connected to the bottom. Among them, the driving plate 21 is placed in the frame 17 and its width is smaller than the width of the frame 17. The driving plate 21 is a "door" shaped structure, with two movable frames 22. Sliding rods 23 are respectively arranged on the inner sides of the movable frames 22. A gear 24 is meshed on one side of the sliding rod 23. A swing rod 25 is connected to the eccentric position of the gear 24. The inside of the swing rod 25 is hollow, and an electrode shaft 26 is connected to the end. One end of the electrode shaft 26 can be connected to the electromagnetic release and energize the electromagnetic release.

[0053] Correspondingly, one side of the top of the swing rod 25 is connected to the active voltage box 27 through an electric wire. The electric wire of the source voltage box 27 is introduced into the connecting shaft and the swing rod 25, and reaches the position of the electrode shaft 26 along the middle of the swing rod 25, so that the electrode shaft 26 is conductive when connected.

[0054] At the fourth region 18, both ends of the electrode shaft 26 are connected to the static contact 3 and the other end of the electromagnetic release, respectively, so that the electromagnetic release conducts electricity to generate a magnetic field, making it convenient for the Hall element 13 to measure the magnetic flux in the rivet 9 region.

[0055] When the stepper motor 14 drives the drive shaft 15 to rotate 90 degrees counterclockwise, the position is set as the first area 28. At this time, the distal end of the cam 16 abuts against the bottom of the drive plate 21 and drives the drive plate 21 to move upward, so that the drive plate 21 moves upward to compress the drive spring 19, and when the sliding rod 23 moves upward, the gear 24 rotates clockwise, driving the rocker arm 25 and the electrode shaft 26 away from the electromagnetic release in the middle, so that the electromagnetic release is powered off.

[0056] like Fig.11 , Fig.12 , Fig.13 As shown, this is for the technical purpose of outputting the electromagnetic release from the workbench 11 after power failure. The present application provides a lifting plate 29 on one side of the movable frame 22. The end of the lifting plate 29 is introduced into the bottom of the workbench 11. Correspondingly, a groove 30 is passed through the workbench 11 corresponding to the installation area of ​​the electromagnetic release on the workbench 11. The yoke 6 of the electromagnetic release is embedded in the groove 30, wherein a triangular block 31 is slidably arranged in the groove 30. One end of the lifting plate 29 mentioned above is fixedly connected to the triangular block 31 opposite to the bottom of the triangular block 31. When the movable frame 22 moves upward, the lifting plate 29 is driven to move upward, thereby causing the triangular block 31 fixedly connected to the lifting plate 29 to move upward, and the triangular block 31 pushes the electromagnetic release in the groove 30 out of the triangular block 31, and causes the electromagnetic release to slide along the inclined surface of the triangular block 31 to one side of the workbench 11.

[0057] Correspondingly, a push plate 32 is provided at one side of the workbench 11. The push plate 32 is connected to a cylinder 33. When the electromagnetic release moves to one side of the push plate 32, the cylinder 33 drives the push plate 32 to move, pushing the electromagnetic release to the end of the workbench 11.

[0058] Correspondingly, the push-out position of the electromagnetic release is provided with a guide rail 34. After the multiple electromagnetic releases are pushed to the end of the workbench 11 in sequence, the electromagnetic releases at the rear push the electromagnetic releases at the front to move onto the guide rail 34 in sequence, thereby facilitating the subsequent screening or determination of defective products.

[0059] The above arrangement allows the electrode shafts 26 at both ends of the electromagnetic release to first detach from the electromagnetic release, and then the electromagnetic release is removed, which can prevent friction and wear between the two ends of the electromagnetic release and the electrode shaft 26, reduce damage to the electrode shaft 26, and extend the service life of the electrode shaft 26.

[0060] As described above, when the cam 16 continues to rotate counterclockwise by 90 degrees, the driving spring 19 can drive the movable frame 22 to reset, and the triangular block 31 returns to the groove 30 to complete the output process of the electromagnetic release and reset the electrode shaft 26 to turn on the electromagnetic release.

[0061] like Fig.11 As shown, this is for the technical purpose of introducing a new electromagnetic release into the groove 30 for installation. The present application is provided with an input frame 35 on one side of the groove 30. A guide surface 36 is provided on the input frame 35. Before using the detection device, the electromagnetic release can be arranged on the input frame 35 in sequence, and the yoke 6 is placed on the input frame 35, and the connecting plate 4 of the electromagnetic release and one end of the static contact 3 are connected to the input frame 35, so as to achieve the purpose of correcting the installation position of the electromagnetic release on the input frame 35 so as not to deviate.

[0062] The slope of the guide surface 36 can be set according to the friction force corresponding to the weight of different snap-on electromagnetic releases, so that the snap-on electromagnetic release can slide to the bottom of the guide surface 36 on the guide surface 36 .

[0063] As described above, when the detected electromagnetic release is completely released, when the triangular block 31 is reset under the action of the driving spring 19, the electromagnetic release at the end of the guide surface 36 enters the groove 30, completing the purpose of automatically inputting the electromagnetic release.

[0064] like Fig.11 As shown, in order to measure outside the rivet 9 area of ​​the electromagnetic release to form a control group, In the present application, the cam 16 is further rotated counterclockwise by 90 degrees on the basis of the above, and this position is set as the second area 37. When the cam 16 rotates to make its far end abut against the left side of the frame 17, the frame 17 is driven to move left as a whole, so that the frame 17 drives the Hall element 13 to move left as a whole, leaving the rivet 9 area, and the magnetic flux outside the rivet 9 area is measured.

[0065] like Fig.11 As shown, in order to mark the electromagnetic release that reaches the end of the workbench 11, determine the electromagnetic release Technical purposes detected. The present application allows the cam 16 to continue to rotate counterclockwise by 90 degrees on the basis of the above, and this position is set as the third area 38. At this time, the frame 17 is provided with a pressing plate 39 slidingly disposed at the bottom of the cam 16. A pressing spring 40 is disposed between the pressing plate 39 and the frame 17. A marker 41 is disposed at the end of the pressing plate 39. The marker 41 can stick a pattern on the electromagnetic release. The marker 41 is a prior art, so it is not repeated.

[0066] When the cam 16 rotates to the third area 38, the far end of the cam 16 abuts against the pressing plate 39, so that the pressing plate 39 is pressed down, driving the marker 41 to move down to the end of the workbench 11. The yoke 6 position marking pattern of the electromagnetic release at the end of the workbench 11 determines its detected state. The above arrangement enables each electromagnetic release to be marked when it is separated from the workbench 11, and arranged in sequence on the guide rail 34, which is convenient for determining its detection state and finding the corresponding unqualified electromagnetic release.

[0067] After the marking is completed, the cam 16 continues to rotate to the fourth area 18, and under the resetting action of the pressing spring 40, the pressing plate 39 is reset, completing the marking process.

[0068] As described above, through each stepping position of the single stepping motor 14, the rotation position of the cam 16 changes, thereby causing the overall electromagnetic release to output-input-detection outside the rivet 9 area-marking-detection within the rivet 9 area-output-input cycle process, realizing full automation throughout the process, with low design cost, saving labor cost, and improving detection efficiency.

[0069] The first area 28, the second area 37, the third area 38, and the fourth area 18 are divided as follows: Fig.14 shown.

[0070] Overall testing process:

[0071] Testing process

[0072] The following is a specific detection process flow of the magnetic flux automatic detection equipment for high magnetic flux electromagnetic releases based on the specification and drawings, which is explained in the order of the first area-the second area-the third area-the fourth area, including the removal of the electromagnetic release and the addition of a new release.

[0073] Overall testing process:

[0074] 1. First area 28: Cut off power and remove the electromagnetic release

[0075] 1. Stepper motor start:

[0076] The stepper motor 14 drives the driving shaft 15 to rotate 90 degrees counterclockwise, so that the distal end of the cam 16 abuts against the bottom of the driving plate 21 .

[0077] 2. Drive the board upward:

[0078] The driving plate 21 moves upward to compress the driving spring 19 and simultaneously drives the sliding rod 23 to move upward.

[0079] 3. Power off operation:

[0080] When the sliding rod 23 moves upward, the gear 24 rotates clockwise, driving the swing rod 25 and the electrode shaft 26 away from the electromagnetic release, so that the electromagnetic release is powered off.

[0081] 4. Remove the electromagnetic release:

[0082] The lifting plate 29 also moves upward when the driving plate 21 moves upward, so that the triangular block 31 fixedly connected to the lifting plate moves upward to push out the electromagnetic release in the groove 30 .

[0083] The electromagnetic release slides along the inclined surface of the triangular block to the push plate 32 on one side of the workbench 11 .

[0084] 5. Push operation:

[0085] The cylinder 33 drives the push plate 32 to move, and pushes the electromagnetic release to the end of the workbench 11.

[0086] The guide rail 34 guides the electromagnetic release to a designated position for easy subsequent processing.

[0087] 6. Add new electromagnetic release:

[0088] When the lifting plate 29 and the triangular block 31 return to their initial positions, the new electromagnetic release on the input frame 35 slides into the groove 30 under the action of the guide surface 36, and the new electromagnetic release is added.

[0089] 2. Second area 37: measuring the magnetic flux outside the rivet area

[0090] 1. The stepper motor continues to rotate:

[0091] The stepper motor 14 continues to drive the driving shaft 15 to rotate 90 degrees counterclockwise, so that the distal end of the cam 16 abuts against the left side of the frame 17 .

[0092] 2. Frame movement:

[0093] The cam 16 drives the frame 17 to move left as a whole, so that the Hall element 13 leaves the rivet 9 area, and the magnetic flux outside the rivet area is measured.

[0094] 3. Magnetic flux measurement:

[0095] The Hall element 13 measures the magnetic flux outside the rivet area to obtain comparison data.

[0096] 3. The third area 38: Mark the electromagnetic release that has been tested

[0097] 1. The stepper motor continues to rotate:

[0098] The stepper motor 14 continues to drive the driving shaft 15 to rotate 90 degrees counterclockwise, so that the distal end of the cam 16 abuts against the pressing plate 39 .

[0099] 2. Marking operation:

[0100] The pressing plate 39 is pressed downward by the pressing spring 40 , driving the marker 41 to move downward to the end of the workbench 11 .

[0101] The marker 41 marks a pattern on the electromagnetic release to confirm its detected state.

[0102] 4. The fourth area 18: measuring the magnetic flux in the rivet area

[0103] 1. The stepper motor continues to rotate:

[0104] The stepper motor 14 continues to drive the driving shaft 15 to rotate 90 degrees counterclockwise, so that the distal end of the cam 16 abuts against the right side of the frame 17 .

[0105] 2. Frame reset:

[0106] The cam 16 drives the frame 17 to move rightward, so that the Hall element 13 returns to the position directly facing the rivet 9 area.

[0107] 3. Magnetic flux measurement:

[0108] The Hall element 13 measures the magnetic flux in the rivet area.

[0109] Through the above steps, the detection equipment realizes the fully automated detection process of the electromagnetic release from power off, measurement outside the rivet area, marking, and measurement inside the rivet area. The process is reasonably designed, which can effectively improve the detection efficiency, reduce manual operations, and achieve high-precision magnetic flux measurement.

[0110] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A magnetic flux automatic detection device, characterized in that: include: A frame (10); a workbench (11) for placing an electromagnetic release to be detected is arranged on the frame (10); a transversely arranged fixed frame (12) is arranged on one side of the frame (10); a Hall element (13) is slidably arranged on the fixed frame (12); the Hall element (13) can slide back and forth on the fixed frame (12) and face the measurement area required by the electromagnetic release; a stepper motor (14) is arranged on one side of the Hall element (13); the stepper motor (14) is connected to a drive shaft (15); a cam (16) is connected to the end of the drive shaft (15); a frame (17) is arranged outside the cam (16); the frame (17) is fixedly connected to the Hall element (13) and moves with the movement of the Hall element (13); A driving spring (19) and a driving rod (20) are arranged between the fixed frame (12) and the frame (17); the driving rod (20) is inserted into the fixed frame (12) and is connected to a driving plate (21) at the bottom; the driving plate (21) is placed in the frame (17) and the width of the driving plate (21) is smaller than the width of the frame (17); the driving plate (21) is a "door"-shaped structure and has two movable frames (22); sliding rods (23) are respectively arranged on the inner sides of the two movable frames (22); a gear (24) is meshed on one side of the sliding rod (23); a swing rod (25) is connected to the eccentric position of the gear (24); the swing rod (25) is hollow inside and is connected to an electrode shaft (26) at the end; one end of the electrode shaft (26) is connected to an electromagnetic release and enables the electromagnetic release to be energized; One side of the top of the swing rod (25) is connected to an active voltage box (27) through an electric wire, and the electric wire of the source voltage box (27) is introduced into the connecting shaft and the swing rod (25), and reaches the position of the electrode shaft (26) along the middle of the swing rod (25), so that the electrode shaft (26) is conductive when connected; A lifting plate (29) is provided on one side of the movable frame (22); the end of the lifting plate (29) is introduced into the bottom of the workbench (11); a groove (30) is passed through the workbench (11) corresponding to the installation area of ​​the electromagnetic release on the workbench (11); a triangular block (31) is slidably provided in the groove (30); One end of the lifting plate (29) is directly opposite to the bottom of the triangular block (31) and is fixedly connected to the triangular block (31); When the movable frame (22) moves upward, it drives the lifting plate (29) to move upward, thereby causing the triangular block (31) fixedly connected to the lifting plate (29) to move upward, and the triangular block (31) pushes the electromagnetic release in the groove (30) out of the triangular block (31), and causes the electromagnetic release to slide along the inclined surface of the triangular block (31) to one side of the workbench (11); A push plate (32) is provided on one side of the workbench (11); the push plate (32) is connected to a cylinder (33); when the electromagnetic release moves to one side of the push plate (32), the cylinder (33) drives the push plate (32) to move; The frame (17) is provided with a pressing plate (39) slidably disposed at the bottom of the cam (16), a pressing spring (40) is disposed between the pressing plate (39) and the frame (17), and a marker (41) is disposed at the end of the pressing plate (39); The stepper motor (14) is used to drive the cam (16) to move between different areas, namely the first area (28), the second area (37), the third area (38) and the fourth area (18).

2. The magnetic flux automatic detection equipment according to claim 1, characterized in that: The frame (10) is provided with a guide rail (34) at the push-out position of the electromagnetic release; after the plurality of electromagnetic releases are pushed to the end of the workbench (11) in sequence, the electromagnetic releases at the rear push the electromagnetic releases at the front to move in sequence onto the guide rail (34) for subsequent screening or determination of defective products.

3. The magnetic flux automatic detection equipment according to claim 2, characterized in that: The overall process of the magnetic flux automatic detection equipment includes the following steps: Step 1: First area (28): Disconnect power and remove the electromagnetic release (1) Stepper motor start: The stepper motor (14) drives the drive shaft (15) to rotate counterclockwise (90) degrees, so that the distal end of the cam (16) abuts against the bottom of the drive plate (21); (2) The driving plate moves upward: the driving plate (21) moves upward to compress the driving spring (19), and at the same time drives the sliding rod (23) to move upward; (3) Power-off operation: When the sliding rod (23) moves upward, the gear (24) rotates clockwise, driving the swing rod (25) and the electrode shaft (26) away from the electromagnetic release, so that the electromagnetic release is powered off; (4) Removing the electromagnetic release: the lifting plate (29) also moves upward when the driving plate (21) moves upward, so that the triangular block (31) fixedly connected to the lifting plate moves upward and pushes out the electromagnetic release in the groove (30); the electromagnetic release slides along the inclined surface of the triangular block to the push plate (32) on one side of the workbench (11); (5) Pushing operation: the cylinder (33) drives the push plate (32) to move, pushing the electromagnetic release to the end of the workbench (11); the guide rail (34) guides the electromagnetic release to a designated position to facilitate subsequent processing; (6) Adding a new electromagnetic release: When the lifting plate (29) and the triangular block (31) return to their initial positions, the new electromagnetic release on the input frame (35) slides into the groove (30) under the action of the guide surface (36), completing the addition of the new electromagnetic release; Step 2: Second area (37): Measure the magnetic flux outside the rivet area (1) The stepper motor continues to rotate: the stepper motor (14) continues to drive the drive shaft (15) to rotate counterclockwise (90) degrees, so that the distal end of the cam (16) abuts against the left side of the frame (17); (2) Frame movement: The cam (16) drives the frame (17) to move left as a whole, so that the Hall element (13) leaves the rivet (9) area, and the magnetic flux outside the rivet area is measured; (3) Magnetic flux measurement: The Hall element (13) measures the magnetic flux outside the rivet area to obtain comparison data; Step 3: Third area (38): Mark the electromagnetic release that has been tested (1) The stepper motor continues to rotate: the stepper motor (14) continues to drive the drive shaft (15) to rotate counterclockwise (90) degrees, so that the distal end of the cam (16) abuts against the pressing plate (39); (2) Marking operation: the pressing plate (39) is pressed downward under the action of the pressing spring (40), driving the marker (41) to move downward to the end of the workbench (11); the marker (41) marks a pattern on the electromagnetic release to confirm its detected state; Step 4: Fourth Region (18): Measure the Magnetic Flux in the Rivet Region (1) The stepper motor continues to rotate: the stepper motor (14) continues to drive the drive shaft (15) to rotate counterclockwise (90) degrees, so that the distal end of the cam (16) abuts against the right side of the frame (17); (2) Frame reset: The cam (16) drives the frame (17) to move rightward, so that the Hall element (13) returns to the position directly opposite the rivet (9) area; (3) Magnetic flux measurement: The Hall element (13) measures the magnetic flux in the rivet area.

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