CN219418346U - Driving motor fault setting and measuring box - Google Patents

Abstract

The application discloses driving motor trouble sets up and measures box to solve the driving motor trouble that prior art exists and set up and measure device circuit complicacy, trouble build inefficiency, be difficult to satisfy the problem that teaching was used. The application comprises the following steps: the box body and the box cover are internally provided with fault boards, the inner surface of the box cover is provided with a measuring board, and the measuring board is connected with the fault boards through flat cables; the outer surface of the box cover is provided with a driving motor principle topological pattern, the motor controller topological unit is connected with the driving motor topological unit through a circuit pattern, and a plurality of pairs of measuring holes are arranged on the circuit pattern; the external measuring instrument measures the voltage, current, resistance and on-off information of the line where the measuring hole is located, so that a learner can analyze the fault phenomenon and find the fault reason; the utility model has simple structure and convenient use; the winding displacement makes the circuit clear, and the wholeness can be stable, and the trouble is built more conveniently, and trouble setting efficiency improves, can cooperate the trouble to set up the module and carry out trouble setting and trouble measurement, satisfies teaching use.

Description

Driving motor fault setting and measuring box

Technical Field

The application relates to the technical field of driving motor fault demonstration, in particular to a driving motor fault setting and measuring box.

Background

The driving motor adopted by the existing electric automobile is a permanent magnet synchronous motor with a single output shaft, and the driving motor can only drive the automobile to run through a transmission shaft during normal operation. The driving motor is easy to vibrate during working, and the driving motor is easy to break down or even damage during vibration, so that the electric automobile cannot normally run. Therefore, the principle control learning of the driving motor is very important, and when faults occur, operators can also quickly find out the fault reasons, eliminate hidden danger in time and ensure the normal operation of the electric automobile.

At present, a fault board and a measuring board in the traditional driving motor fault setting and measuring device are exposed outside, and the whole appearance is not attractive; when a fault setting person (such as a teacher) sets a fault, the fault board and the measuring board are connected through wire harness welding, so that a circuit is complex and easy to damage, the fault setting is affected, and the fault setting efficiency is low. Meanwhile, when a teacher sets faults, the students can intuitively see the set faults because the faults set by the teacher cannot be hidden, and therefore the teaching effect and the teaching quality are affected.

Disclosure of Invention

Therefore, the application provides a driving motor fault setting and measuring box to solve the problems that the driving motor fault setting and measuring device circuit is complicated, the fault setting efficiency is low, and teaching use is difficult to meet in the prior art.

In order to achieve the above object, the present application provides the following technical solutions:

the utility model provides a driving motor trouble sets up and measuring box which characterized in that includes: the box comprises a box body and a box cover connected with the box body;

a fault board is arranged in the box body and connected with the control line for carrying out fault setting on the control line; the fault board is provided with a plurality of pairs of fault setting hole sites and at least two fault setting modules, and any fault setting module is selected by a instructor to be connected with the selected fault setting hole sites so as to realize fault setting; the fault setting comprises short circuit, open circuit, virtual connection and intersection;

the right side of the box cover is integrated with an acceleration switch, a brake switch, a gear switch and an ignition switch which are respectively connected with a motor controller, wherein the control lines comprise a first group of control lines, a second group of control lines, a third group of control lines, a fourth group of control lines and a fifth group of control lines, the first group of control lines are positioned between the motor controller and a driving motor, the second group of control lines are positioned between the motor controller and the acceleration switch, the third group of control lines are positioned between the motor controller and the brake switch, the fourth group of control lines are positioned between the motor controller and the gear switch, and the fifth group of control lines are positioned between the motor controller and the ignition switch;

the inner surface of the box cover is provided with a measuring plate, and the measuring plate is connected with the fault plate through a flat cable; the outer surface of lid is provided with driving motor principle topological pattern, driving motor principle topological pattern includes motor controller topological unit, driving motor topological unit, motor controller topological unit passes through circuit pattern with driving motor topological unit and is connected, circuit pattern with the circuit of measuring board is corresponding, be provided with many pairs of measuring holes on the circuit pattern correspondingly, many pairs of measuring holes set up the hole site one-to-one with many pairs of trouble for voltage, electric current, resistance and the break-make information of the circuit that the measuring hole was located are measured through outside measuring instrument, for the student analysis fault phenomenon and seek fault cause.

Optionally, the driving motor principle topological pattern is printed on the outer surface of the box cover through a colored drawing screen.

Optionally, the driving motor principle topology pattern further comprises an auxiliary power supply topology unit, a power battery topology unit, an ignition switch topology unit, an acceleration switch topology unit, a gear switch topology unit and a brake switch topology unit, wherein the power battery topology unit is connected with the motor controller topology unit, and the acceleration switch topology unit, the gear switch topology unit and the brake switch topology unit are positioned above the motor controller topology unit; the ignition switch topology unit is located above the auxiliary power supply topology unit.

Optionally, the number of the fault setting holes of the plurality of pairs is 80 pairs, and the number of the measuring holes of the plurality of pairs is 50 pairs.

Optionally, a first plug is arranged at the rear part of the box body, and the fault board is connected with the control line through the first plug; a second plug is arranged on one side of the fault board; the bottom of measuring board is provided with the third plug, the second plug with the third plug passes through the winding displacement is connected.

Optionally, the fault setting module includes one of a shorting plug and a wire harness, and the shorting plug and the wire harness are both used for connecting with the fault setting hole site.

Optionally, the box body and the box cover are connected through a locking structure.

Optionally, the box body and the box cover are supported by a pneumatic stay bar.

Optionally, the box body is connected with the box cover through a magnetic component.

Optionally, a magnet is arranged outside the right side of the box body, and an iron sheet corresponding to the magnet is arranged at the right end of the inner side of the box cover.

Compared with the prior art, the application has the following beneficial effects:

1. the application provides a driving motor fault setting and measuring box, which comprises a box body and a box cover, wherein a fault board is arranged in the box body, a measuring board is arranged on the inner surface of the box cover, and the measuring board is connected with the fault board through a flat cable; the outer surface of the box cover is provided with a driving motor principle topological pattern, the driving motor principle topological pattern comprises a motor controller topological unit and a driving motor topological unit, the motor controller topological unit is connected with the driving motor topological unit through a circuit pattern, and a plurality of pairs of measuring holes are correspondingly arranged on the circuit pattern; the voltage, current, resistance and on-off information of the line where the measuring hole is located are measured through an external measuring instrument, so that a learner can analyze the fault phenomenon and find the fault reason; the utility model has the advantages of simple structure, convenient use and beautiful overall appearance; the arrangement of winding displacement makes the circuit clear, is not fragile, and the wholeness can be stable, and the trouble is built more conveniently, and trouble setting efficiency improves, can cooperate some trouble to set up the module and carry out driving motor's trouble setting and trouble measurement, satisfies teaching use.

2. The right side of this application lid is integrated with acceleration switch, brake switch, gear switch and the ignition switch of being connected with motor controller respectively, conveniently sets up the trouble, saves time, improves trouble setting efficiency.

3. One side of this application fault board is provided with the second plug, and the measurement board bottom is provided with the third plug, and the second plug passes through the winding displacement with the third plug to be connected for the circuit is clearer, and the efficiency is built in the trouble further improves.

4. The box body is connected with the box cover through a locking structure, and the box cover is supported through a pneumatic supporting rod; when the fault is set, the box cover is opened, and a teacher can finish the fault setting; after the teacher completes fault setting, the box cover is closed, and after the box cover is locked through the locking structure, the fault set by the teacher can be hidden, and students cannot see the set fault, so that the teaching quality is improved.

5. The fault board has high power, can perform high-power line fault setting, and has wider fault setting range.

Drawings

For a more visual illustration of the prior art and the present application, several exemplary drawings are presented below. It should be understood that the specific shape and configuration shown in the drawings should not be considered in general as limiting upon the practice of the present application; for example, based on the technical concepts and exemplary drawings disclosed herein, those skilled in the art have the ability to easily make conventional adjustments or further optimizations for the add/subtract/assign division, specific shapes, positional relationships, connection modes, dimensional scaling relationships, etc. of certain units (components).

FIG. 1 is a schematic diagram of a first embodiment of the present application;

FIG. 2 is a second schematic structural diagram according to an embodiment of the present disclosure;

FIG. 3 is a top view of the view shown in FIG. 1;

FIG. 4 is a rear view of the view shown in FIG. 1;

FIG. 5 is a schematic diagram of the power cell principle topology shown in FIG. 4;

FIG. 6 is a left side view and a right side view of the device shown in FIG. 1;

FIG. 7 is a bottom view of the device shown in FIG. 1;

fig. 8 is a schematic view of an inner side surface of the cap of fig. 1.

Reference numerals illustrate:

1. a case body; 11. a fault plate; 12. a first plug; 13. a second plug; 14. setting hole sites by faults; 2. a box cover; 21. a measuring plate; 22. a third plug; 23. measuring holes; 24. driving motor principle topological patterns; 241. a motor controller topology unit; 242. a driving motor topology unit; 243. an auxiliary power topology unit; 244. a power battery topology unit; 245. an ignition switch topology unit; 246. an acceleration switch topology unit; 247. a gear switch topology unit; 248. a brake switch topology unit; 3. a locking structure; 31. a clamping block; 311. a clamping groove; 32. a locking member; 321. a hook; 4. a pneumatic stay bar; 5. a magnetic attraction component; 51. a magnet; 52. iron sheet; 6. an acceleration switch; 7. a brake switch; 8. a gear switch; 9. an ignition switch.

Detailed Description

The present application is further described in detail below with reference to the attached drawings.

In the description of the present application: unless otherwise indicated, the meaning of "a plurality" is two or more. The terms "first," "second," "third," and the like in this application are intended to distinguish between the referenced objects without a special meaning in terms of technical connotation (e.g., should not be construed as emphasis on degree or order of importance, etc.). The expressions "comprising", "including", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

The terms such as "upper", "lower", "left", "right", "middle", and the like, as referred to in this application, are generally used for convenience in visual understanding with reference to the drawings, and are not intended to be an absolute limitation of the positional relationship in actual products. Such changes in relative positional relationship are considered to be within the scope of the present description without departing from the technical concepts disclosed herein.

1-8, a driving motor fault setting and measuring box can be applied to the scenes of teaching demonstration of driving motor principles and the like; comprising the following steps: the box comprises a box body 1 and a box cover 2 connected with the box body 1, wherein the box cover 2 seals the box body 1;

a fault board 11 is arranged in the box body 1, the fault board 11 is connected with the control line, and the fault board 11 is used for carrying out fault setting on the control line; the fault board 11 is provided with a plurality of pairs of fault setting hole sites 14, the fault setting hole sites 14 are used in pairs, and at least two fault setting modules are configured, so that a teacher can select any fault setting module to connect with the selected fault setting hole site 14 to realize fault setting; fault settings include short circuit, open circuit, virtual connection and crossover; serial number marks are arranged on the fault board 11 corresponding to the fault setting hole sites 14;

as shown in fig. 4 and 8, an acceleration switch 6, a brake switch 7, a gear switch 8 and an ignition switch 9 which are respectively connected with a motor controller are integrated on the right side of the box cover 2; the control lines comprise a first group of control lines, a second group of control lines, a third group of control lines, a fourth group of control lines and a fifth group of control lines, wherein the first group of control lines are positioned between the motor controller and the driving motor, the second group of control lines are positioned between the motor controller and the acceleration switch 6, the third group of control lines are positioned between the motor controller and the brake switch 7, the fourth group of control lines are positioned between the motor controller and the gear switch 8, and the fifth group of control lines are positioned between the motor controller and the ignition switch 9;

the inner surface of the box cover 2 is provided with a measuring plate 21, and the measuring plate 21 is connected with the fault plate 11 through a flat cable; the outer surface of the box cover 2 is provided with a driving motor principle topological pattern 24, as shown in fig. 5, the driving motor principle topological pattern 24 comprises a motor controller topological unit 241 and a driving motor topological unit 242, the driving motor topological unit 242 is arranged below the motor controller topological unit 241, the motor controller topological unit 241 is respectively connected with the driving motor topological unit 242 through a circuit pattern, the circuit pattern corresponds to a circuit of the measuring plate 21, the circuit pattern is generally simpler than an actual circuit, only a main topology is drawn, and a secondary circuit is omitted; the circuit pattern is correspondingly provided with a plurality of pairs of measuring holes 23, the pairs of measuring holes 23 are in one-to-one correspondence with the pairs of fault setting hole sites 14, and the circuit pattern is used for measuring the voltage, current, resistance and on-off information of the circuit where the measuring holes 23 are positioned through an external measuring instrument (such as a universal meter) so as to allow a student to analyze fault phenomena and search fault reasons.

The measuring plate 21 is used for measuring the voltage, current, resistance, on-off and other information of the line where the measuring hole 23 is located, so as to detect the fault set by the fault plate 11 and perform teaching demonstration; the arrangement of the flat cable enables the circuit to be clear, the performance is stable, the fault construction is more convenient, and the problem that the traditional fault arrangement is complicated and easy to damage due to the fact that the fault board 11 is connected with the measuring board 21 through the wire harness is avoided; the arrangement of the acceleration switch 6, the brake switch 7, the gear switch 8 and the ignition switch 9 enables the fault arrangement to be convenient and quick, saves time and improves the fault arrangement efficiency; the acceleration switch 6, the brake switch 7, the gear switch 8 and the ignition switch 9 are sequentially arranged along the longitudinal direction and are positioned on the right side of the driving motor principle topological pattern 24; when a fault is set, the ignition switch 9 is turned on, the system is electrified, so that the control line is in a normal use state, then fault setting is carried out on the fault plate 11, the gear switch 8 can be controlled at the moment, the gear switch 8 is divided into N gear, D gear and R gear, and the gear switch is similar to an automobile and corresponds to neutral gear, forward gear and reverse gear respectively; the rotary acceleration switch 6 can control the rotating speed of the driving motor and corresponds to an automobile accelerator pedal; pressing the brake switch 7 can brake the driving motor, corresponding to the automobile brake pedal.

When a teacher sets a fault, the box cover 2 is in an open state, and the fault board 11 is connected with the fault setting module to realize fault setting; when the fault is removed, the box cover 2 is in a closed state, and a student (student) measures information such as voltage, current and the like of different measuring holes through an external measuring instrument, so that the fault phenomenon is analyzed, the fault reason is found, and the principle control learning of the driving motor is realized.

Preferably, the driving motor principle topology pattern 24 is screen printed on the outer surface of the case cover 2 by painting.

Further preferably, as shown in fig. 5, the driving motor principle topology pattern 24 further includes an auxiliary power supply topology unit 243, a power battery topology unit 244, an ignition switch topology unit 245, an acceleration switch topology unit 246, a gear switch topology unit 247, a brake switch topology unit 248, and a power relay topology unit; the power battery topology unit 244 is connected with the motor controller topology unit 241; the acceleration switch topology unit 246, the gear switch topology unit 247 and the brake switch topology unit 248 are sequentially and transversely arranged above the motor controller topology unit 241; the ignition switch topology unit 245 is located above the auxiliary power topology unit 243.

Preferably, the number of pairs of fault locating holes 14 is 80 pairs and the number of pairs of measuring holes 23 is 50 pairs. In addition, a plurality of pairs of fault standby hole sites are also arranged on the fault board 11, and other redundant measuring holes can be detected.

Preferably, as shown in fig. 2, a first plug 12 is arranged at the rear part of the box body 1, the first plug 12 is a fault line plug, the fault board 11 is connected with the control line through the first plug 12, and the first plug 12 is provided with an input interface and an output interface; the control line is cut and then provided with two break points, namely a front break point and a rear break point, wherein the front break point enters the box body 1 through an input interface of the first plug 12 and is connected with the rear break point through an output interface of the first plug 12 after passing through the fault board 11;

as shown in fig. 1, a second plug 13 is arranged on one side of the fault board 11, the second plug 13 is a plug of the fault board 11, a third plug 22 is arranged at the bottom of the measuring board 21, and the third plug 22 is a plug of the measuring board 21; the second plug 13 is connected to the third plug 22 by a flat cable.

Preferably, the fault setting module includes one of a shorting plug and a harness, both for connection with the fault setting hole site 14; the shorting plug has an input interface and an output interface. Under the condition that no fault is set, the short-circuit plugs are in a plug-in state, so that the circuit is kept smooth, and the short-circuit plugs can be pulled out or connected to other fault setting hole sites 14 by using wire harnesses when the fault is set so as to realize different types of circuit fault setting.

When the control line is in a normal path, the short-circuit plug (or the wiring harness) is connected with the pair of fault setting hole sites 14, so that the connection between the two fault setting hole sites 14 (the pair of fault setting hole sites 14) is realized, and the control line is communicated; when the short-circuit plug is pulled out, the control line is in an open-circuit fault state, and the arrangement of the open-circuit fault of the control line can be realized; or the wire is connected to a fault setting hole site 14 of 12V+ or 12V-reserved on the fault board 11 by using a wire harness, and the control wire is in a short circuit fault state, so that the setting of positive short circuit or negative short circuit can be realized.

Preferably, as shown in fig. 1, the case body 1 and the case cover 2 are connected by a locking structure 3; the locking structure 3 comprises two parts, the front end of the inner side of the box cover 2 is provided with a clamping block 31, the clamping block 31 is provided with a clamping groove 311, the front outer side of the box body 1 is provided with a locking piece 32 matched with the clamping block 31, one side of the locking piece 32, which is close to the box body 1, is provided with a rotatable hook 321, when the box body 1 and the box cover 2 are locked, the box cover 2 is put down, and the hook 321 is rotated, so that the hook 321 is hung in the clamping groove 311, and locking can be completed.

Further preferably, as shown in fig. 1 and 6, the box body 1 and the box cover 2 are supported by a pneumatic stay 4.

Preferably, the box body 1 is connected with the box cover 2 through a magnetic component 5; as shown in fig. 6 and 7, magnets 51 are provided outside the left and right sides of the case 1, and iron pieces 52 corresponding to the two magnets 51 are provided at the left and right ends of the inside of the case cover 2.

The working principle of the above embodiment: assuming that a certain control line exists from the motor controller to the driving motor, cutting the control line to form a front breakpoint and a rear breakpoint; the front break point enters the box body 1 through the input interface of the first plug 12 and is connected with the rear break point through the output interface of the first plug 12 after passing through the fault board 11; in particular, the method comprises the steps of,

when the control line is in a normal path, the front breakpoint of the control line enters the box body 1 through the first plug 12 and is connected with the fault board 11, and a short-circuit plug (or a wire harness) is connected between two fault setting hole sites 14 (a pair of fault setting hole sites 14) on the fault board 11, so that an input interface of the first plug 12 is connected with one fault setting hole site 14, is connected with the other fault setting hole site 14 through the short-circuit plug, and is connected with the rear breakpoint of the control line through an output interface of the first plug 12 to form a path;

when a teacher sets a fault on the control line, the box cover 2 is opened, and the box cover 2 is supported by the pneumatic supporting rod 4; if the short-circuit plug between the two fault setting hole sites 14 is pulled out during normal access, the control line is in a broken fault state at the break point, so that the broken fault is set; or the wiring harness is connected to a 12V+ or 12V-reserved fault setting hole site 14 on the fault board 11, so that the setting of positive short circuit or negative short circuit can be realized; in addition, faults such as virtual connection, crossing and the like of the circuit can be formed through other fault setting modules and the control line;

when students remove faults, the box cover 2 is in a closed state, and locking is realized between the box cover 2 and the box body 1 through the locking structure 3; because the second plug 13 at one side of the fault board 11 is connected with the third plug 22 at the bottom of the measuring board 21 through the flat cable, the measuring board 21 can realize data measurement of each breakpoint of the fault board 11, and the universal meter can measure information such as voltage, current and the like of different measuring holes 23, so that the fault phenomenon is analyzed, the fault cause is found, and the principle control learning of the driving motor is realized.

The utility model has the advantages of simple structure, convenient use and beautiful overall appearance; the setting of winding displacement makes the circuit clear, and is not fragile, and the wholeness can be stable, and the trouble is built more conveniently, and trouble setting efficiency improves, can cooperate some trouble to set up the module and carry out driving motor's trouble setting and trouble measurement, satisfies teaching use, and teaching quality and student's study effect improves.

In addition, a second plug is arranged on one side of the fault board, a third plug is arranged at the bottom of the measuring board, and the second plug is connected with the third plug through a flat cable, so that a circuit is clearer, and the fault building efficiency is further improved; the box body is connected with the box cover through a locking structure, and supports the box cover through a pneumatic supporting rod; when the fault is set, the box cover is opened, and a teacher can finish the fault setting; after the teacher accomplishes the trouble setting, close the lid, through locking structure locking back, can hide the trouble that the teacher set up, the student just can not see like this and set up which trouble, and the student only can arrange the event through the data that trouble phenomenon and measuring hole obtained, and then improved the teaching quality, and the student also can really master driving motor's principle and the cause of failure.

In addition, the fault board typesetting design and the circuit design are optimized, the power of the fault board is 2200W, the power of the fault board of the traditional fault box is 660W, the power of the fault board is increased compared with that of the traditional fault board, high-power circuit fault setting can be carried out, the fault setting range is wider, and the problems that the traditional fault board is low in power and only low-voltage and low-current circuit fault setting can be carried out are solved.

Any combination of the technical features of the above embodiments may be performed (as long as there is no contradiction between the combination of the technical features), and for brevity of description, all of the possible combinations of the technical features of the above embodiments are not described; these examples, which are not explicitly written, should also be considered as being within the scope of the present description.

The foregoing has outlined and detailed description of the present application in terms of the general description and embodiments. It should be appreciated that numerous conventional modifications and further innovations may be made to these specific embodiments, based on the technical concepts of the present application; but such conventional modifications and further innovations may be made without departing from the technical spirit of the present application, and such conventional modifications and further innovations are also intended to fall within the scope of the claims of the present application.

Claims (10)

1. A drive motor fault setting and measuring box, comprising: the box comprises a box body and a box cover connected with the box body;

a fault board is arranged in the box body and connected with the control line for carrying out fault setting on the control line; the fault board is provided with a plurality of pairs of fault setting hole sites and at least two fault setting modules, and any fault setting module is selected by a instructor to be connected with the selected fault setting hole sites so as to realize fault setting; the fault setting comprises short circuit, open circuit, virtual connection and intersection;

the right side of the box cover is integrated with an acceleration switch, a brake switch, a gear switch and an ignition switch which are respectively connected with a motor controller, wherein the control lines comprise a first group of control lines, a second group of control lines, a third group of control lines, a fourth group of control lines and a fifth group of control lines, the first group of control lines are positioned between the motor controller and a driving motor, the second group of control lines are positioned between the motor controller and the acceleration switch, the third group of control lines are positioned between the motor controller and the brake switch, the fourth group of control lines are positioned between the motor controller and the gear switch, and the fifth group of control lines are positioned between the motor controller and the ignition switch;

the inner surface of the box cover is provided with a measuring plate, and the measuring plate is connected with the fault plate through a flat cable; the outer surface of lid is provided with driving motor principle topological pattern, driving motor principle topological pattern includes motor controller topological unit, driving motor topological unit, motor controller topological unit passes through circuit pattern with driving motor topological unit and is connected, circuit pattern with the circuit of measuring board corresponds, be provided with many pairs of measuring holes on the circuit pattern correspondingly, many pairs of measuring holes set up the hole site one-to-one with many pairs of trouble.

2. The drive motor failure setting and measuring box according to claim 1, wherein the drive motor principle topology pattern is screen printed on the outer surface of the box cover by painting.

3. The drive motor fault setting and measuring box according to claim 1, wherein the drive motor principle topology pattern further comprises an auxiliary power supply topology unit, a power battery topology unit, an ignition switch topology unit, an acceleration switch topology unit, a gear switch topology unit and a brake switch topology unit, wherein the power battery topology unit is connected with the motor controller topology unit, and the acceleration switch topology unit, the gear switch topology unit and the brake switch topology unit are positioned above the motor controller topology unit; the ignition switch topology unit is located above the auxiliary power supply topology unit.

4. The drive motor failure setting and measuring cassette of claim 1, wherein the number of pairs of failure setting holes is 80 pairs, and the number of pairs of measuring holes is 50 pairs.

5. The drive motor failure setting and measuring box according to claim 1, wherein a first plug is provided at a rear portion of the box body, and the failure board is connected with the control line through the first plug; a second plug is arranged on one side of the fault board; the bottom of measuring board is provided with the third plug, the second plug with the third plug passes through the winding displacement is connected.

6. The drive motor fault setting and measuring box of claim 1, wherein the fault setting module comprises one of a shorting plug and a wiring harness, both for connection with the fault setting hole site.

7. The drive motor failure setting and measuring cassette of claim 1, wherein the cassette body and the cassette cover are connected by a locking structure.

8. The drive motor failure setting and measuring cassette of claim 1, wherein the cassette body and the cassette cover are supported by a pneumatic stay.

9. The drive motor failure setting and measuring box according to claim 1, wherein the box body and the box cover are connected through a magnetic attraction assembly.

10. The driving motor malfunction setting and measuring box according to claim 9, wherein a magnet is provided outside the right side of the box body, and an iron piece corresponding to the magnet is provided at the right end of the inner side of the box cover.