CN116381464A - A detection device and detection method for circuit boards in electrical automation equipment - Google Patents

Abstract

The invention relates to a detection device, in particular to a detection device and a detection method for a circuit board in electric automation equipment. The microcomputer protection device comprises a detector for detecting the microcomputer protection device; connecting wires with plugs at two ends; the detection device comprises a detection instrument, a microcomputer protection device, a plug carrier, a connecting wire, a detection device and a detection method, wherein sockets connected with the circuit board are arranged in the detection instrument and the microcomputer protection device, the detection device further comprises the plug carrier arranged at the top of the detection instrument, the plug carrier is movably connected with one end of the connecting wire, in the detection device and the detection method of the circuit board in the electric automation device, when the connecting wire is connected with the detection instrument, the connecting end is set to be in a tight state through a supporting plate, the sensing piece controls the connection relation between the plug carrier and the connecting wire, and the other end of the connecting wire corresponding to the tight state is inserted into the microcomputer protection device through the plug carrier, so that the frequency of manually controlling the connecting wire to be inserted into the microcomputer protection device is reduced, and the subsequent detection efficiency is improved.

Description

A detection device and detection method for circuit boards in electrical automation equipment

technical field

The invention relates to a detection device, in particular to a detection device and a detection method for a circuit board in an electric automation equipment.

Background technique

The microcomputer protection device is composed of high-integration, bus-out chip single-chip microcomputer, high-precision current and voltage transformer, high-dielectric strength export intermediate relay, high-reliability switching power supply module and other components. The microcomputer protection device can automatically detect motor faults caused by various reasons, and take action protection measures at the same time.

After the production and assembly of the microcomputer protection device is completed, it is necessary to detect the status of the internal circuit board, single-chip microcomputer, transformer and other components, and the detection equipment uses a detector.

The publication number is CN115586350A, which is a current transformer detection platform with a quick plug-in structure, which belongs to the technical field of transformer detection, and solves the technical problem of unstable connection between transformer pins and transformer detectors. It includes a box body, the inside of which is equipped with a transformer detector, the upper end cover of the box body is provided with a box cover, and the upper surface of the box cover is fixedly provided with a docking assembly. The docking assembly includes a docking seat that is fixedly connected to the case cover. Two vertical docking slots are provided on the upper surface of the docking seat. Conductor sheets are arranged inside the docking vertical slots. The upper ends of the conductor sheets are connected to the docking The inner wall of the vertical slot is rotatably connected, and an elastic device is provided between the side wall of the conductor sheet and the inner wall of the docking vertical slot to provide a gap between the lower end of the conductor sheet and the inner wall of the docking vertical slot. A conductor rod is fixed inside the docking seat, one end of the conductor rod is electrically connected to the transformer detector, and the other end of the conductor rod is electrically connected to the conductor sheet.

In the above-mentioned patents, the current transformer and the detector are directly plugged and unplugged for detection. However, when testing the microcomputer protection device, it is necessary to use a connection line to connect the detector and the microcomputer protection device, and the microcomputer protection device has many sockets, so it is necessary to insert multiple connection lines into the tester and the microcomputer protection device during detection. The operation of inserting both ends of the connecting wire affects the detection efficiency.

Contents of the invention

The object of the present invention is to provide a detection device and detection method for circuit boards in electrical automation equipment, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, one of the objectives of the present invention is to provide a detection device for circuit boards in electrical automation equipment, including a detector for detecting a microcomputer protection device; a connecting line with plugs at both ends; the detector and the microcomputer protection device. The sockets connected with the circuit board are all arranged in the device, and the detection device also includes a plug carrier arranged on the top of the detector. When one end of the connection line is connected to the detector, the induction part locks the plug carrier and the connection line, so that the plug carrier drives the other end of the connection line to insert into the microcomputer protection device.

As a further improvement of the technical solution, the top of the detector is provided with a support plate, the support plate is located in the middle of the connecting line and is fixedly connected with the connecting line, when one end of the connecting line is connected to the detector, the supporting plate will connect the connecting line The two ends are divided into a tight part and a loose part, and the induction part is set at the tight part to control the connection state of the plug carrier and the connecting wire, so that when the plug carrier moves, the connecting wire of the loose part is inserted into the Inside the microcomputer protection device.

As a further improvement of the technical solution, the plug carrier includes a carrier for supporting the microcomputer protection device, and the carrier is located on the top of the detector.

As a further improvement of the technical solution, the top of the detector is provided with a guide plate for guiding the direction of the connecting wire.

As a further improvement of the technical solution, the plug carrier includes a driving member, and the driving member includes a bearing plate. The side wall of the bearing plate is also provided with a plurality of openings, and a sleeve sleeved on the plug is slidably arranged in the openings. The outer peripheral slider, one end of the slider protrudes outward to form a bump, and the part of the connecting line between the support plate and the bearing plate is a loose part; the bottom of the bearing plate extends to one end and is formed on the top of the microcomputer protection device Sliding pull plate.

As a further improvement of the technical solution, the induction element is a collar set on the outer ring of the connecting wire, the weight of the collar is greater than the weight of the connecting wire, and one side of the collar protrudes outward to form a transmission One end of the transmission rod is fixedly connected with a wedge-shaped block; the side wall of the bearing plate is fixedly provided with a fixed plate, the side wall of the fixed plate slides through the insertion rod, and the side wall of the protrusion is provided with a A return spring is arranged between one end of the inserting rod and the fixing plate, and when the connecting wire is tight, the collar drives the inserting rod through the wedge block to insert into the protrusion.

As a further improvement of the technical solution, the side wall of the bearing plate is fixedly connected with a convex plate, and one end of the convex plate penetrates into the wedge block and maintains longitudinal sliding connection with the wedge block; the bottom of the collar is fixedly connected with a telescopic rod, The bottom end of the telescopic rod is fixedly connected with a bottom plate, and the bottom plate is a telescopic structure and one end is fixedly connected with the side wall of the support plate.

As a further improvement of the technical solution, the middle part of the bearing frame has a supporting plate, and one end of the pulling plate has a main sloping plate and a secondary sloping plate, and the top end of the secondary sloping plate is bent to one side to form a plane; A sleeve runs through the top of the support plate, a compression spring is arranged in the bottom end of the sleeve, and a cylinder is connected to one end of the compression spring.

As a further improvement of the technical solution, an installation spring elastically connecting the two is provided between the collar and the bottom plate.

The second object of the present invention is to provide a detection method for the detection device of the circuit board in the electrical automation equipment, comprising the following method steps:

S1. The plug at one end of the connecting line is plugged into the socket of the tester;

S2. The sensor locks the plug carrier and the connecting wire;

S3. The plug carrier drives the other end of the connecting wire to be inserted into the microcomputer protection device.

Compared with prior art, the beneficial effect of the present invention:

1. In the detection device and detection method of the circuit board in the electrical automation equipment, when the connection wire is connected to the detector, the connection end is set in a tight state through the support plate, so that the induction part controls the connection between the plug carrier and the connection wire relationship, so that the plug carrier inserts the other end of the connecting wire corresponding to the tight state into the microcomputer protection device, thereby reducing the frequency of manual control of the connection wire being inserted into the microcomputer protection device, and improving the subsequent detection efficiency.

2. In the detection device and detection method of the circuit board in the electrical automation equipment, the gravity of the microcomputer protection device is used to drive the pull plate twice, so that when the microcomputer protection device falls on the carrier frame, the pull plate can automatically drive the load. The plate moves to the microcomputer protection device, thereby reducing the number of times of manual control of pulling the plate and reducing the labor force.

3. In the detection device and detection method of the circuit board in the electrical automation equipment, when the connecting wire is connected to the detector, the installation spring pulls the collar down through its own elasticity, forcing one end of the connecting wire to stay away from the detector and stay in the guide On the board, the storage of the connecting wires is completed, so as to improve the storage speed of the connecting wires.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic structural view of the plug carrier of the present invention;

Fig. 3 is one of the structural schematic diagrams of the induction element of the present invention;

Fig. 4 is the second structural schematic diagram of the induction element of the present invention;

Fig. 5 is a schematic structural view of the insertion rod of the present invention;

Fig. 6 is the structural representation of wedge block of the present invention;

Fig. 7 is a schematic structural view of the carrier frame of the present invention;

Fig. 8 is the structural representation of drawing plate of the present invention;

Fig. 9 is an enlarged schematic diagram of the structure at A of the sleeve of Fig. 8 of the present invention;

Fig. 10 is a schematic diagram of the moving state of the connecting wire of the present invention.

The meanings of each symbol in the figure are:

100. Microcomputer protection device;

200, detector; 201, socket; 202, connection line; 203, plug; 204, guide plate; 210, support plate;

300. Plug carrier;

310, carrying frame; 311, limit plate; 312, piercing;

320, driving part; 321, bearing plate; 322, port; 323, slider; 324, bump; 325, pull plate; 326, main inclined plate; 327, secondary inclined plate; 328, plane;

330, induction part; 331, bottom plate; 332, expansion rod; 333, collar; 334, transmission rod; 335, wedge block; 336, installation spring;

340, fixed plate; 341, plunger; 342, return spring; 343, convex plate;

350, support plate; 351, sleeve; 352, compression spring; 353, cylinder.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

Please refer to Fig. 1-Fig. 2, one of the purposes of the present invention is to provide a detection device for circuit boards in electrical automation equipment, which can reduce the frequency of manually inserting the connecting wire 202 into the microcomputer protection device 100, and reduce the insertion time , for timely detection. The detection device includes a detector 200 that detects the microcomputer protection device 100; a connecting wire 202 connecting the detector 200 with the microcomputer protection device 100, the two ends of the connecting wire 202 have plugs 203, and both the detector 200 and the microcomputer protection device 100 are A socket 201 connected to the circuit board is provided, and the end of the connecting wire 202 is plugged into the socket 201 to realize the measurement of the microcomputer protection device 100 .

The detection device also includes a plug carrier 300 arranged on the top of the tester 200, the plug carrier 300 is movably connected to one end of the connecting wire 202, and the plug carrier 300 is also provided with an inductive element 330 for controlling the connection state of the plug carrier 300 and the connecting wire 202. When one end of the connecting wire 202 is connected to the tester 200 , the inductive element 330 locks the plug carrier 300 and the connecting wire 202 , so that the plug carrier 300 drives the other end of the connecting wire 202 to be inserted into the microcomputer protection device 100 .

Specifically, the top of the tester 200 is provided with a support plate 210, the support plate 210 is located in the middle of the connection line 202 and is fixedly connected to the connection line 202, when one end of the connection line 202 is connected to the tester 200, the support plate 210 will connect the connection line 202 divides the two ends into a tense part and a loose part, and the inductive part 330 is arranged at the tense part to control the inductive part 330 of the connection state of the plug carrier 300 and the connecting wire 202, so that when the plug carrier 300 moves, the loose part The connection wire 202 is inserted into the microcomputer protection device 100 .

That is to say, when the connecting wire 202 is connected to the tester 200, the connecting end is set in a tight state through the support plate 210, so that the induction element 330 controls the connection relationship between the plug carrier 300 and the connecting wire 202, so that the plug carrier 300 will The other end of the connecting wire 202 corresponding to the tight state is inserted into the microcomputer protection device 100 , thereby reducing the frequency of manual control of the connection wire 202 being inserted into the microcomputer protection device 100 and improving subsequent detection efficiency.

2-6 show Embodiment 1 of the present invention.

As shown in Figure 2, the plug carrier 300 includes a carrier 310 for supporting the microcomputer protection device 100, and the carrier 310 is located on the top of the tester 200 to limit the microcomputer protection device 100 to the top of the tester 200, saving space. occupancy.

In addition, the top of the detector 200 is provided with a guide plate 204 for guiding the direction of the connecting wire 202, the side wall of the guiding plate 204 is provided with a chute for the connecting wire 202 to slide, the guiding plate 204 can guide the direction of the connecting wire 202, In order to improve the detection accuracy of the sensor 330 . In addition, other methods can also be used to guide the connecting wire 202. For example, opening a through groove for the connecting wire 202 to penetrate in the detector 200 can not only realize the guiding of the connecting wire 202, but also hide the part of the connecting wire 202 in the In the tester 200, the protection capability of the connection line 202 is improved.

As shown in FIG. 2 and FIG. 3 , the plug carrier 300 includes a driving member 320, and the driving member 320 includes a supporting plate 321 and a limiting plate 311 arranged oppositely, wherein:

The side wall of the bearing plate 321 is also provided with a plurality of openings 322, and a sliding block 323 sleeved on the outer periphery of the plug 203 is slidably arranged in the openings 322. One end of the sliding block 323 protrudes outward to form a bump 324, and the connecting wire 202 is a slack part between the support plate 210 and the load plate 321; on the other hand, the bottom of the load plate 321 extends to one end to form a pull plate 325 that slides on the top of the microcomputer protection device 100, and the pull plate 325 and the microcomputer protection device 100 Sliding connections are made through the set slide rails;

The limit plate 311 is fixedly connected to one side of the bearing frame 310 through a fixed rod, and the side wall is also provided with a plurality of openings 312 for the slider 323 to pass through, so as to improve the stability when the bump 324 moves, and the openings The quantity of 312 corresponds to the quantity of connecting lines 202;

During detection, the staff can drive the carrying plate 321 to move towards the limit plate 311 by pulling the pull plate 325. When there is no tight part in the connecting line 202, it means that one end of the connecting line 202 is not connected to the detector 200. Therefore, the other end does not need to be connected with the microcomputer protection device 100. At this time, the sliding relationship between the bearing plate 321 and the protrusion 324 has not been changed, and the movement of the bearing plate 321 to the limit plate 311 will not drive the protrusion 324 and the plug. 203 moves, when there is a tight part in the connection line 202, it means that one end of the connection line 202 is connected to the socket 201 on the tester 200, and the distance becomes longer when the connection line 202 is inserted into the tester 200, resulting in the connection between the connection line 202 and the support plate. 210 becomes tense, at this time the sliding relationship between the sensing element 330, the bearing plate 321 and the bump 324 intervenes, so that the driving element 320 and the bump 324 are locked, and the bearing plate 321 moves to drive The protrusion 324 , the protrusion 324 drives the plug 203 to be inserted into the socket 201 in the microcomputer protection device 100 .

After the detection is completed, the pull plate 325 is pushed to reset the bearing plate 321 . When the bearing plate 321 is reset, the bump 324 at one end of the side wall of the slider 323 drives the plug 203 to reset and separate from the microcomputer protection device 100 .

In the above, the sensing element 330 is arranged at the tight part to control the connecting state of the plug carrier 300 and the connecting wire 202, and its specific structure is as follows:

Please refer to Fig. 3-Fig. 5, the inductive element 330 is a collar 333 sleeved on the outer ring of the connecting wire 202, the weight of the collar 333 is greater than the weight of the connecting wire 202, so that the collar 333 can be pressed under normal conditions connecting wire 202; then, one side of the collar 333 protrudes outwards to form a transmission rod 334, and one end of the transmission rod 334 is fixedly connected with a wedge block 335; meanwhile, the side wall of the bearing plate 321 is fixedly provided with a fixed plate 340, which is fixed The side wall of the plate 340 slides through the insertion rod 341, and the side wall of the projection 324 is provided with a socket adapted to the insertion rod 341. A return spring 342 is arranged between one end of the insertion rod 341 and the fixed plate 340. When the connecting wire When the 202 is tight, the collar 333 drives the insertion rod 341 through the wedge block 335 to insert into the protrusion 324 .

When the connection wire 202 is inserted into the tester 200, the connection wire 202 and the support plate 210 become tense. At this time, the connection wire 202 pulls up the collar 333, and the collar 333 drives the wedge-shaped block through the transmission rod 334. 335 moves up, so that the wedge-shaped block 335 moves up and pushes the insertion rod 341 into the socket of the projection 324. When the loading plate 321 moves, the loading plate 321 drives the projection 324 and the sliding block 323 to move through the insertion rod 341. When the friction force between the jack in the projection 324 and the insertion rod 341 causes the insertion rod 341 to be unable to reset by the return spring 342, after the insertion rod 341 breaks away from the wedge block 335, the insertion rod 341 still can not break away from the position of the projection 324. inside the jack.

However, if the carrying plate 321 stops during the movement, the friction force between the insertion rod 341 and the socket will disappear, causing the insertion rod 341 to break away from the protrusion 324, and the carrying plate 321 cannot drive the protrusion 324 and the slider 323 Continue to move, for this reason Fig. 6 further optimizes the relationship between the wedge block 335 and the plunger 341. Wherein, the side wall of bearing plate 321 is fixedly connected with convex plate 343, and one end of convex plate 343 penetrates in wedge-shaped block 335 and keeps vertical sliding connection with wedge-shaped block 335; The bottom end of 332 is fixedly connected with the bottom plate 331 , the bottom plate 331 is a telescopic structure and one end is fixedly connected with the side wall of the support plate 210 . In this way, the collar 333 can still be contracted by pressing the telescopic rod 332 by gravity. When the connecting wire 202 is tight, the collar 333 is lifted, and the telescopic rod 332 stretches out; and when the carrier plate 321 moves, the carrier plate 321 passes through The convex plate 343 pulls the wedge-shaped block 335 to move, and the wedge-shaped block 335 pulls the collar 333 to move through the transmission rod 334. At this time, the bottom plate 331 shrinks, so as to realize the continuous driving of the insertion rod 341 and avoid the phenomenon that the insertion rod 341 is detached from the socket. .

It should be noted that, for the convenience of description, this embodiment only illustrates one connecting line 202, but it is not limited to only one connecting line 202, that is to say, multiple connecting lines 202 can be set, and multiple connecting lines 202 still pass through The guiding plate 204 guides, and its guiding position can be changed flexibly according to time conditions.

Embodiment 2. In this embodiment, the driving mode of the pull plate 325 is changed, and the mode of manually pulling the pull plate 325 is changed to automatic pulling, as follows:

Please refer to Fig. 4 on the basis of Fig. 7-Fig. 9, the middle part of the bearing frame 310 has a support plate 350, and one end of the pull plate 325 has a main inclined plate 326 and a secondary inclined plate 327, and the top end of the secondary inclined plate 327 faces One side is bent to form a plane 328; on the other hand, a sleeve 351 runs through the top of the support plate 350, and a compression spring 352 is disposed in the bottom of the sleeve 351, and a column 353 is connected to one end of the compression spring 352.

During the process of placing the microcomputer protection device 100 on the carrier frame 310:

The microcomputer protection device 100 presses down the sleeve 351 to force the compression spring 352 to compress;

The microcomputer protection device 100 squeezes the slope of the main inclined plate 326, forcing the pull plate 325 to drive the bearing plate 321 to move toward the microcomputer protection device 100 for the first time; The socket 201 of the wall is also on the same axis as the plug 203 . At the same time, the pull plate 325 drives the secondary swash plate 327 to move, so that the secondary swash plate 327 moves to the bottom of the cylinder 353, and the compressed compression spring 352 pushes the cylinder 353 so that the cylinder 353 passes through the slope of the secondary swash plate 327 to pull the pull plate 325. Push to force the pull plate 325 to drive the carrying plate 321 to move to the microcomputer protection device 100 for the second time, and insert the connecting wire 202 into the socket 201 of the microcomputer protection device 100 .

It can be seen that the pull plate 325 is driven twice by the gravity of the microcomputer protection device 100, so that when the microcomputer protection device 100 falls onto the carrier frame 310, the pull plate 325 can automatically drive the load plate 321 to the microcomputer protection device 100. move, thereby reducing the number of times of manual control of the pull plate 325, and reducing the manual labor.

Embodiment 3, considering that the connecting wire 202 needs to be stored after the detection is completed, this embodiment provides an implementation for the storage of the connecting wire 202, please refer to Fig. 3, Fig. 4, Fig. 6 and Fig. As shown in 10, an installation spring 336 elastically connecting the two is arranged between the collar 333 and the bottom plate 331. When the connection line 202 is connected to the detector 200, the installation spring 336 moves down through its own elastic pulling collar 333 (can be Referring to the dotted line part in Fig. 4), one end of the connecting wire 202 is forced to stay away from the tester 200 and stay on the guide plate 204 (see the dotted line in Fig. The storage speed of the line 202.

The second object of the present invention is to provide a detection method for the detection device of the circuit board in the electrical automation equipment, comprising the following method steps:

S1, the plug 203 at one end of the connection line 202 is plugged into the socket 201 of the tester 200;

S2. The sensor 330 locks the plug carrier 300 and the connecting wire 202;

S3 , the plug carrier 300 drives the other end of the connecting wire 202 to insert into the microcomputer protection device 100 .

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and those described in the above-mentioned embodiments and description are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A detection device of a circuit board in an electric automation device comprises a detector (200) for detecting a microcomputer protection device (100); connecting wires (202) with plugs (203) at two ends; the detector (200) and the microcomputer protection device (100) are internally provided with sockets (201) connected with the circuit board, and the detector is characterized in that: the detection device further comprises a plug carrier (300) arranged at the top of the detector (200), the plug carrier (300) is movably connected with one end of the connecting wire (202), an induction piece (330) for controlling the connection state of the plug carrier (300) and the connecting wire (202) is further arranged in the plug carrier (300), and when one end of the connecting wire (202) is connected with the detector (200), the induction piece (330) locks the plug carrier (300) and the connecting wire (202), so that the plug carrier (300) drives the other end of the connecting wire (202) to be inserted into the microcomputer protection device (100).

2. The device for inspecting a circuit board within an electrical automation apparatus of claim 1, wherein: the utility model discloses a microcomputer protection device, including detector (200), plug carrier (300), connecting wire (202), backup pad (210), when one end and detector (200) of connecting wire (202) are connected, backup pad (210) divide into tight part and slack with both ends with connecting wire (202), inductor (330) set up in tight part department and control inductor (330) of plug carrier (300) and connecting wire (202) connected state, so that plug carrier (300) are removed in with connecting wire (202) of slack.

3. The apparatus for inspecting a circuit board within an electrical automation device of claim 2, wherein: the plug carrier (300) comprises a carrier (310) for supporting the microcomputer protection device (100), the carrier (310) being located on top of the detector (200).

4. The device for inspecting a circuit board within an electrical automation apparatus of claim 1, wherein: the top of detector (200) is provided with guide board (204) that are used for guiding connecting wire (202) direction.

5. A device for inspecting a circuit board in an electrical automation apparatus according to claim 3, wherein: the plug carrier (300) comprises a driving piece (320), the driving piece (320) comprises a bearing plate (321), a plurality of through holes (322) are formed in the side wall of the bearing plate (321), a sliding block (323) sleeved on the periphery of the plug (203) is arranged in the through holes (322) in a sliding mode, one end of the sliding block (323) protrudes outwards to form a protruding block (324), and a part of the connecting wire (202) between the supporting plate (210) and the bearing plate (321) is a loose part; the bottom of the bearing plate (321) extends to one end to form a pull plate (325) sliding on the top of the microcomputer protection device (100).

6. The device for inspecting a circuit board within an electrical automation apparatus of claim 5, wherein: the induction piece (330) is a sleeve ring (333) sleeved on the outer ring of the connecting wire (202), the weight of the sleeve ring (333) is larger than that of the connecting wire (202), one side of the sleeve ring (333) protrudes outwards to form a transmission rod (334), and one end of the transmission rod (334) is fixedly connected with a wedge block (335); the utility model discloses a fixed plate (340) is fixed to the lateral wall of loading board (321), and the lateral wall slip of fixed plate (340) runs through has inserted bar (341), the jack with inserted bar (341) adaptation is seted up to the lateral wall of lug (324), is provided with reset spring (342) between one end of inserted bar (341) and fixed plate (340), when connecting wire (202) are tight, lantern ring (333) insert in lug (324) through wedge (335) drive inserted bar (341).

7. The device for inspecting a circuit board within an electrical automation apparatus of claim 6, wherein: the side wall of the bearing plate (321) is fixedly connected with a convex plate (343), and one end of the convex plate (343) penetrates into the wedge-shaped block (335) and is longitudinally and slidably connected with the wedge-shaped block (335); the bottom of lantern ring (333) fixedly connected with telescopic link (332), the bottom fixedly connected with bottom plate (331) of telescopic link (332), bottom plate (331) are but telescopic structure and one end and lateral wall fixed connection of backup pad (210).

8. The device for inspecting a circuit board within an electrical automation apparatus of claim 5, wherein: the middle part of the bearing frame (310) is provided with a support plate (350), one end of the pull plate (325) is provided with a main inclined plate (326) and a secondary inclined plate (327), and the top end of the secondary inclined plate (327) is bent to one side to form a plane (328); the top of extension board (350) is run through and is had sleeve (351), be provided with compression spring (352) in the bottom of sleeve (351), the one end of compression spring (352) is connected with cylinder (353).

9. The device for inspecting a circuit board within an electro-automation device of claim 7, wherein: an installation spring (336) for elastically connecting the collar (333) and the bottom plate (331) is arranged between the collar and the bottom plate.

10. A method for inspecting an inspection apparatus for a circuit board in an electrical automation device according to claim 1, characterized in that: the method comprises the following steps:

s1, a plug (203) at one end of a connecting wire (202) is inserted into a socket (201) of a detector (200);

s2, the plug carrier (300) and the connecting wire (202) are locked by the sensing piece (330);

s3, the plug carrier (300) drives the other end of the connecting wire (202) to be inserted into the microcomputer protection device (100).

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