Portable autonomous modular electromechanical control teaching training test bed

Abstract

The utility model discloses a portable autonomous modularized electromechanical control teaching training test bench. The experiment box comprises a box body, a bottom plate is installed at the upper end in the box body, a direct-current switching power supply is arranged on the bottom plate, a plurality of jack arrays used for providing conductive paths are arranged on the bottom plate at intervals, a containing cavity is formed in the lower end in the box body, and a controller suite and a wire assembly which are used for experiment teaching are placed in the containing cavity. The device is simple and practical in structural design and simple and convenient to operate, can train the electromechanical control circuit design capability and the practical manual wiring capability of a user, deepens the understanding of the user on the electromechanical control principle, and has a relatively high popularization value.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromechanical control, and in particular relates to a portable autonomous modular electromechanical control teaching and training test bench. Background Art

[0002] The ship's electromechanical system involves the control of a large number of electromechanical equipment such as electric pumps, electric valves, and electric fans. Whether these electromechanical equipment can be controlled safely and orderly is directly related to whether the ship system can operate normally. For ship electromechanical equipment, its control generally includes manual start-stop control, high-speed and low-speed switching control, forward and reverse control, automatic interlocking control, etc. To achieve the above control functions, it is necessary to design corresponding control circuits for them and select appropriate control devices. In ship electromechanical control, commonly used control devices include circuit breakers and thermal relays for electrical protection, as well as contactors, relays, time relays, working switches, buttons, etc. for realizing control functions. There are many types of these control devices, and the actual wiring is relatively complicated. In order to realize the corresponding electromechanical control functions through these control devices, it is necessary to master the basic structure and working principle of these control devices, and use these control devices to design the corresponding control circuits and complete the actual wiring of the control devices. The above contents are the key points and difficulties for the teaching of ship electromechanical control courses.

[0003] In the current teaching of ship electromechanical control courses, the main focus is on explaining the control principles of designed electromechanical control circuits. Students are not required to design their own control circuits, nor are they required to perform actual wiring of control devices, which makes it impossible for students to intuitively and deeply understand the design principles of electromechanical control circuits, nor can they exercise their practical hands-on wiring skills. Therefore, it is necessary to design and develop an electromechanical control teaching and training experimental platform to improve the teaching effect of electromechanical control courses. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies of the above-mentioned background technology and to provide a portable autonomous modular electromechanical control teaching and training test bench with simple structure and convenient operation.

[0005] The technical solution adopted by the utility model is: a portable autonomous modular electromechanical control teaching and training test bench, including a box body, a bottom plate is installed at the upper end of the box body, a DC switching power supply is arranged on the bottom plate, a plurality of jack arrays for providing conductive paths are arranged at intervals on the bottom plate, and the lower end of the box body is a accommodating cavity, in which a controller kit and a wire assembly for experimental teaching are placed.

[0006] Furthermore, the base plate includes an epoxy resin plate and a circuit board superimposed and fixed on the top of the epoxy resin plate, the socket array is fixed on the circuit board, and the socket array is electrically connected to the circuit board.

[0007] Furthermore, the jack array is an a×b jack array, where a is the number of rows of the jack array, and b is the number of columns of the jack array. The b jacks in the same row are connected through a bottom plate to form a conductive path, and jacks in different rows are not connected.

[0008] Furthermore, each socket of the socket array is square, a cylindrical metal male plug is installed in the socket, and pins at the bottom of the metal male plug are fixed to the bottom plate.

[0009] Furthermore, the controller kit includes a contactor, a thermal relay, a button, a current indicating instrument, a switch, and a time relay. Each control device is provided with one or more of them. A base is fixed at the bottom of each control device, and the bottom of the base is provided with pins for cooperating with the sockets of the socket array.

[0010] Furthermore, the wire assembly includes three types. The connectors at both ends of the Type I wire are banana plugs for matching with the jacks of the jack array, the connectors at both ends of the Type II wire are U-shaped connectors for matching with the control device, and the connector at one end of the Type III wire is a banana head and the connector at the other end is a U-shaped connector.

[0011] Furthermore, the box body includes a cover plate and a main body, the cover plate is hingedly connected to the main body, and the bottom plate is detachably installed on the inner upper end of the main body.

[0012] Furthermore, a support plate is provided on the upper end of the side plate of the main body, and the bottom plate is installed on the support plate.

[0013] Furthermore, handles are provided on both sides of the exterior of the main body.

[0014] Furthermore, a buckle is provided on the outside of the box.

[0015] The beneficial effects of the utility model are:

[0016] The utility model arranges components such as a circuit board, a jack array, a power supply, and a controller kit in a box to form a test bench, and reasonably sets the layout in the box, has a compact structure, complete functions, convenient operation, and low cost.

[0017] The utility model has a simple and practical structural design and is easy to operate. It can train users' ability to design electromechanical control circuits and their ability to actually do wiring, deepen users' understanding of electromechanical control principles, and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the utility model.

[0019] Figure 2 It is a schematic diagram of the utility model in the side opening state.

[0020] Figure 3 It is a front view inside the box of the utility model.

[0021] Figure 4 It is a top view of the structure on the bottom plate of the utility model.

[0022] Figure 5 It is a partial enlarged schematic diagram of the side of the bottom plate of the utility model.

[0023] Figure 6 It is a top view of the jack of the utility model.

[0024] Figure 7 It is a side view of the jack of the utility model.

[0025] Figure 8 It is a schematic diagram of the base of the utility model.

[0026] Fig. 9 for Figure 8 Side view of.

[0027] Fig.10 This is a circuit diagram for manual start / stop and self-locking control of a motor based on the utility model.

[0028] Fig.11 This is the interlocking control circuit diagram of motor No. 1 built based on the utility model.

[0029] Fig.12 This is the interlocking control circuit diagram of motor No. 2 built based on the utility model.

[0030] In the figure, 1-box; 1.1-cover; 1.2-main body; 1.3-support plate; 1.4-partition; 1.5-handle; 1.6-buckle; 2-bottom plate; 2.1-circuit board; 2.2-epoxy resin board; 2.3-mounting hole; 3-socket array; 3.1-socket; 3.2-metal male head; 3.3-pin; 4-DC switching power supply; 5-accommodating cavity; 6-controller kit; 7-wire assembly; 8-screw; 9-base; 9.1-top plate; 9.2-bottom plate; 9.3-pin. DETAILED DESCRIPTION

[0031] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various implementation methods of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0036] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0037] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Multiple" means "two or more".

[0038] like Figure 1-9 As shown, the utility model provides a portable autonomous modular electromechanical control teaching and training test bench, including a box 1, a bottom plate 2 is installed at the upper end of the box 1, a DC switching power supply 4 is arranged on the bottom plate 2, a plurality of jack arrays 3 for providing conductive paths are arranged at intervals on the bottom plate 2, and a receiving cavity 5 is provided at the lower end of the box 1, and a controller kit 6 and a wire assembly 7 for experimental teaching are placed in the receiving cavity 5. The utility model arranges the circuit board, the jack array, the power supply, the control kit and other components in the box to form a test bench, and reasonably arranges the layout in the box, which has a compact structure, complete functions, convenient operation, and low cost. It can train users' ability to design electromechanical control circuits and their ability to actually do hands-on wiring, deepen users' understanding of electromechanical control principles, and has great promotion value.

[0039] In one embodiment, the base plate 2 includes an epoxy resin board 2.2 and a circuit board 2.1 superimposed and fixed on the top of the epoxy resin board, the jack array 3 is fixed on the circuit board 2.1, the jack array 3 is electrically connected to the circuit board 2.1, the epoxy resin board 2.2 and the circuit board 2.1 are used to provide a fixed base and a conductive path for the jack array 3, the base plate 2 is 950 mm long and 480 mm wide, the epoxy resin board 2.2 is preferably 3 mm thick, the circuit board 2.1 is preferably 1.5 mm thick, and the circuit board is a conventional printed circuit board.

[0040] In one embodiment, the socket array 3 is used to fix the control device and provide a conductive path. The socket array 3 is an a×b socket array, a is the number of rows of the socket array, b is the number of columns of the socket array, and the b sockets in the same row are connected through the bottom plate to form a conductive path. The sockets in different rows are not connected, and the sizes of a and b can be set according to actual needs. In this embodiment, 6 socket arrays are arranged on the bottom plate, and the 6 socket arrays are fixed on the bottom plate laterally along the long side of the bottom plate at an interval of 60 mm.

[0041] Preferably, each jack array is 422.4 mm long, 99 mm wide, and 14.8 mm high, with 64 jacks evenly arranged along its long side and 15 jacks evenly arranged along its wide side, together forming an array of jacks with 64 rows and 15 columns. A single jack 3.1 is square, with a side length of 6.6 mm and a height of 14.8 mm, in which a cylindrical metal male plug 3.2 with a diameter of 2.1 mm is installed. The metal male plug extends downward with a 3.8 mm long pin 3.3 for fixing the jack on the base plate 2. The metal male plugs in the 15 jacks in the same row of the jack array are connected together through the printed circuit board on the base plate to form a conductive path, and the metal male plugs in jacks in different rows do not form a conductive path.

[0042] In one embodiment, the DC switching power supply 4 is used to provide a DC24V control power supply and a power supply for the test bench, and is arranged in the lower right corner of the test bench (bottom plate), and is provided with a switch and a socket. This embodiment uses a DC24V safe voltage for power supply, and can carry out common control experiments such as start-stop, self-locking, and interlocking in the field of electromechanical control. During the experiment, the DC switching power supply is connected to the control device through a wire to form a conductive path.

[0043] In one embodiment, the controller kit 6 is used to set up a control circuit to realize the start and stop, self-locking, interlocking and other control of the electromechanical system. The control components included in the controller kit include but are not limited to 4 CJX2-09 contactors, 2 JR36-20 thermal relays, 8 YZJ-LA buttons, 2 0.5A current indicating instruments, 2 LW26-20 switches, 1 H3Y-4 time relay, and a ST3PF (T1) time relay. All control components are equipped with a rectangular special base. The base can be fixed to the bottom of the control component by welding, or the guide rail can be fixed on the top of the base by screws. The control component is fixedly connected to the base through the slide groove at the bottom and the guide rail. According to the different sizes of different control components, the base size is also different. Specifically, the base can be divided into two types, A and B. Both types of bases are 66.6 mm long and 25 mm high, and 4 pins are set on the back (i.e., the bottom), distributed at the four corners of the base. The base can be fixed on the adjacent two socket arrays by the pins. The width of the Class A base is 22mm, and it is used to install smaller control devices such as buttons, indicator lights, motors, and time relays. The width of the Class B base is 48.4mm, and it is used to install larger control devices such as contactors, thermal relays, switches, and ammeters. The base 9 includes a top plate 9.1 and a bottom plate 9.2. The top plate 9.1 is fixed above the bottom plate 9.2 and is spaced a certain distance apart. When a guide rail is installed on the top of the top plate, the distance can be the installation space for the screws. The top plate and the bottom plate are fixedly connected by multiple bolts or welding columns, and pins 9.3 are respectively provided at the four corners of the bottom of the bottom plate 9.2. This embodiment adopts a modular design concept, and each control device can be conveniently inserted into any suitable position in the socket array as a module, making the operation easier.

[0044] In one embodiment, the wire assembly 7 is used for circuit connection of the control device, and is divided into three types: the connectors at both ends of the type I wire are banana plugs, which can be inserted into the jacks of the jack array and connected with the metal male connectors therein; the connectors at both ends of the type II wire are U-shaped connectors, which are used to connect the wiring terminals of two control devices; the type III wire has a banana plug at one end and a U-shaped connector at the other end, which is used to connect the wiring terminals of the control device and the jacks of the jack array. The wire form set in this embodiment has the advantages of flexible and convenient wiring. The control devices can be directly connected using type II wires, or two type III wires can be used to connect in series through the horizontal jacks of the jack array.

[0045] In one embodiment, the box body 1 includes a cover plate 1.1 and a main body 1.2, the cover plate 1.1 is hingedly connected to the main body 1.2, and the bottom plate 2 is detachably mounted on the inner upper end of the main body 1.2. Specifically, an inverted L-shaped support plate 1.3 is provided on the upper end of the side plate of the main body 1.2, one end of the support plate 1.3 is parallelly fixed to the side plate of the main body 1.2, and the other end is parallel to the bottom of the main body 1.2. A plurality of mounting holes 2.3 are provided around the bottom plate 2, and the bottom plate 2 is fixedly mounted on the support plate 1.3 by screws 8 passing through the mounting holes 2.3, and the middle part of the bottom of the bottom plate 2 is supported on the bottom of the main body 1.2 by a partition 1.4. The bottom plate 2 is embedded in the main body 1.2, and in order to facilitate the removal of components such as the controller kit from the accommodating cavity, it can also be fixed without screws.

[0046] In one embodiment, handles 1.5 are provided on both sides of the main body 1.2 to facilitate the movement of the test bench, and the handles can be of any structure. Buckles 1.6 are provided on the outside of the box 1, and when the cover 1.1 is closed, the cover 1.1 and the main body 1.2 can be locked by the buckles 1.6.

[0047] The method of using the utility model test bench is as follows:

[0048] 1. According to the electromechanical control requirements, select the appropriate control device and insert it across two adjacent socket arrays.

[0049] 2. Taking advantage of the characteristic that the same line of the jack array is a conductive path, the selected control components are connected with a wire group to form a complete control circuit and power circuit.

[0050] 3. Manual start and stop control is achieved through switches and button controls, and self-locking and interlocking control is achieved through control devices such as contactors, time relays, and intermediate relays.

[0051] like Fig.10The figure shows the schematic diagram of the manual start and stop and self-locking control circuit of the motor designed based on this test bench. The left side of the figure shows the DC24v power circuit, which includes the circuit breaker QF, the normally open main contact of the contactor KM-1, the thermal relay KTO and the motor. The right side shows the control circuit, which includes the operation indicator light, the contactor KM and its normally open auxiliary contacts KM-2 / KM-3, the start button SB1, the stop button SB2, the working condition selection switch SA, and the normally closed contact of the thermal relay KTO. Set the working condition switch SA to the manual position. When the start button SB1 is pressed, the contactor KM is energized, and its normally open main contact KM-1 of the power circuit is closed to start the motor. At the same time, its normally open auxiliary contact KM-3 of the control circuit is closed, so that the operation indicator light is on, and KM-2 is closed to form a self-locking to keep the control circuit conductive. When the stop button SB2 is pressed, the contactor KM loses power and its normally open main contact KM-1 is disconnected, causing the motor to stop running. At the same time, the normally open auxiliary contacts KM-2 / KM-3 in the control circuit are disconnected, causing the running indicator light to go out and the self-locking function to be released.

[0052] like Fig.11 , Fig.12 The figure shows the schematic diagram of the interlocking control circuit of motors 1 and 2 designed based on this test bench. When one of the motors is started, the other enters the standby interlocking state. For example, when motor 1 is running, its contactor 1KM is energized, then the 1KM-5 contact in the control circuit of motor 2 is disconnected, and the 1KM-2 contact is closed, so that the time relay 2KT is energized, then the 2KT-2 contact is closed to form a self-locking, keeping 2KT energized, and at the same time, the 2KT-1 contact is closed with a delay, so that motor 2M is in the standby state. Once motor 1M stops running, its normally closed contact 1KM-5 is closed, so that the 2KM contactor is energized, and motor 2M starts to run in an interlocking manner.

[0053] The above shows and describes the basic principle, main features and advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. The utility model will have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A portable autonomous modular electromechanical control teaching and training test bench, characterized by: The invention comprises a box body, wherein a bottom plate is installed at the upper end of the box body, a DC switching power supply is arranged on the bottom plate, a plurality of jack arrays for providing a conductive path are arranged at intervals on the bottom plate, and a receiving cavity is arranged at the lower end of the box body, in which a controller kit and a wire assembly for experimental teaching are placed.

2. The portable autonomous modular electromechanical control teaching and training test bench according to claim 1 is characterized by: The bottom plate comprises an epoxy resin plate and a circuit board which is superimposed and fixed on the top of the epoxy resin plate. The socket array is fixed on the circuit board, and the socket array is electrically connected to the circuit board.

3. The portable autonomous modular electromechanical control teaching and training test bench according to claim 1 is characterized by: The socket array is an a×b socket array, where a is the number of rows of the socket array, and b is the number of columns of the socket array. The b sockets in the same row are connected through a bottom plate to form a conductive path, and sockets in different rows are not connected.

4. The portable autonomous modular electromechanical control teaching and training test bench according to claim 1 is characterized by: Each socket of the socket array is square, a cylindrical metal male plug is installed in the socket, and pins at the bottom of the metal male plug are fixed on the bottom plate.

5. The portable autonomous modular electromechanical control teaching and training test bench according to claim 1 is characterized by: The controller kit includes a contactor, a thermal relay, a button, a current indicating instrument, a switch, and a time relay. Each control device is provided with one or more. A base is fixed at the bottom of each control device, and the bottom of the base is provided with pins for matching with the sockets of the socket array.

6. The portable autonomous modular electromechanical control teaching and training test bench according to claim 1 is characterized by: The wire assembly includes three types. The connectors at both ends of the Type I wire are banana plugs for matching with the jacks of the jack array, the connectors at both ends of the Type II wire are U-shaped connectors for matching with the control device, and the connector at one end of the Type III wire is a banana head and the connector at the other end is a U-shaped connector.

7. The portable autonomous modular electromechanical control teaching and training test bench according to claim 1 is characterized by: The box body comprises a cover plate and a main body, the cover plate is hingedly connected to the main body, and the bottom plate is detachably mounted on the inner upper end of the main body.

8. The portable autonomous modular electromechanical control teaching and training test bench according to claim 7 is characterized by: A supporting plate is provided on the upper end of the side plate of the main body, and the bottom plate is installed on the supporting plate.

9. The portable autonomous modular electromechanical control teaching and training test bench according to claim 7 is characterized by: Handles are arranged on both sides of the exterior of the main body.

10. The portable autonomous modular electromechanical control teaching and training test bench according to claim 1 is characterized by: A buckle is arranged outside the box body.

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