WO2018169456A2 - Modular designer and laboratory modular unit for studying physical phenomena - Google Patents

Abstract

The group of inventions relates to equipment for experiments and is aimed at expanding functional capabilities. A designer includes a mounting panel (1), profiles (2) and brackets (5), I-shaped or T-shaped central and side functional modules (3) and (4), and supports (6). The modules (3) and (4) can be designed to transmit electrical current and/or contain equipment components: a collar, a cell, an inclined platform, an arrester, a clamp, a compartment for installation of power supplies, a console, an indicator, a contact, an axis, a winding coil and a switch. A laboratory modular unit of the designer contains at least one central functional module (3) and/or side functional module (4), brackets (5) and a support (6).

Description

MODULAR DESIGNER AND LABORATORY MODULAR UNIT FOR STUDYING PHYSICAL PHENOMENA

The group of inventions relates to teaching aids, educational games and can be used to assemble spatial structures during experiments and laboratory work, including for the assembly of electrical circuits, technical devices and mechanisms used to study physical phenomena.

The group of inventions is a modular 3D designer of laboratory devices and installations of various thematic focus. The construction set consists of multifunctional parts, from which the elements of laboratory installations and the installations themselves can be assembled, in particular, the laboratory modular construction block as its element carrying the main functional load.

Today, there are a number of designers who solve problems close to the claimed invention, however, most of them are made according to the "one part - one function" scheme, and also have limited spatial modeling capabilities.

The closest analogue is a teaching aid known from the prior art for the study of physical phenomena [PTL: RU2287861, publ. 20.11.2006, prior. dated 14.12.2004, G09B23 / 06], containing a mounting panel with connectors, including on its side faces, stands for installing modular blocks on which the elements of equipment are located. The stand is attached to the mounting panel by means of pins installed in its base, made of wedging pins.

In addition, the manual additionally contains a rack mounted on the mounting panel and a plate interacting with the rack by means of a slider with a longitudinal groove for the test object, a scale and connecting sockets located along the longitudinal groove on the side surface of the plate, while the slider is hinged at the end of the plate and installed with the ability to move along the rack.

The removable modular units have locking tabs and are provided with electrical contacts located on the locking tabs and / or side walls of the removable modular units.

The supports are rectangular and T-shaped and equipped with U-shaped brackets with grooves located on their sides, in which fixing protrusions of removable modular blocks are fixed.

Various optical, electrical, radiotechnical, mechanical equipment elements are used as equipment elements.

The manual allows you to solve many problems for the simulation of laboratory installations and devices, but can be modified in order to increase its functionality. In particular, the implementation of the stand and the bracket as a single whole restricts the use of the stand only for functional units of a standard size and configuration, does not allow the bracket to be used as a separate element of the aid, for example, for self-installation on various surfaces. When installing the central functional module into the niche formed by the brackets, the module can rotate (swing) relative to the stand (backlash).

The constructor is a set of functional parts of various kinds and work surfaces, and the installation of most parts on the work surfaces is carried out both directly and through the formation of a laboratory modular unit.

The task to be solved by the group of inventions is the development of a system of multifunctional devices, the parts of which are maximally unified, which, in addition to expanding the possibilities of using the designer, will simplify and reduce the cost of its production.

The technical result of the claimed group of inventions mainly envisages expanding the functionality, as well as simplifying the arrangement of equipment elements and also improving the usability of the designer.

The claimed modular constructor for the study of physical phenomena contains:

central and side functional modules with interface elements with each other and with brackets, made in I-shaped or T-shaped or cruciform,

brackets in the form of a profile, consisting of one end and two side surfaces with grooves for fixing functional modules,

work surfaces in the form of a mounting plate and at least one mounting profile,

moreover, the brackets are made with the possibility of self-installation on the working surfaces through the side surfaces of the bracket,

and on the working surfaces there are connecting nests and / or slots for mounting brackets.

When connecting the mounting profiles, a mounting plate can be formed, preferably with a longitudinal groove. The use of a mounting plate in combination with other elements allows the formation of many structures for measuring, for example, the speed or acceleration of bodies.

Additionally, the constructor contains measuring instruments - protractors, calculators and others.

To connect modules and brackets into blocks, the constructor may contain a stand with grooves for installing the bracket (the bracket in this case has fixing protrusions), made in an I-shaped, T-shaped or cruciform shape. At its base, there are fastening means on working surfaces, for example, removable pins. Longitudinal vertical protrusions can be made on the end part of the bracket for better fixation. The interface elements of functional modules are made with the possibility of transmitting electric current, which makes it possible to use a wide range of equipment in the modules.

To solve various problems using the elements of the constructor, the following functional modules with equipment elements can be used:

functional module containing an element for transmitting electric current and fixing conductors,

functional module in the form of a hollow cylinder with a through window for inserting equipment elements,

functional module containing a cuvette,

functional module with a platform for built-in or removable equipment elements,

a functional module containing elements for stopping the ball,

functional module containing a clamp,

functional module containing a compartment for installing a power supply,

functional module containing a console with a mounting plate fastening element,

functional module with an element for fixing measuring instruments,

a functional module containing an axis for installing devices,

functional module containing a swing arm electromagnet,

functional module containing the key,

functional module containing the frame.

Laboratory modular constructor block, contains:

at least one central and / or lateral functional module with elements of interface with brackets and with each other, made I-shaped or T-shaped or cruciform,

brackets with grooves in the upper part for fixing functional modules and protrusions in the lower part for connecting to the stand,

stand with slots for mounting and fixing brackets, made in I-shaped or T-shaped or cruciform.

The block-modular layout of the constructor provides interchangeability due to standardization, unification and detachable connection of parts to each other. In addition, ease of use is achieved due to the variability and reduction of time spent on assembling and disassembling the elements of the constructor. The versatility of individual parts of the kit ensures its compactness, that is, it allows you to have fewer, for example, stands for installing the necessary modules on them, as well as the ability to use the same parts in different versions.

The bracket of the constructor, in contrast to the prototype, is removable, which expands the possibilities of its use as an independent element or when installed on a stand. Longitudinal vertical protrusions can be made on the end part of the bracket for better fixation. The interface elements of the functional modules are made with the possibility of transmitting electric current.

The essence of the invention is illustrated by drawings, which shows the preferred design of the constructor, in particular:

Figure 1

contains a general schematic view of the constructor in the form of one of the possible spatial structures.

Figure 2

contains an assembly of a laboratory modular unit with an I-shaped stand.

Figure 3

contains an assembly of a laboratory modular unit with T and I-shaped supports, as well as a five-pin central modular unit.

Figure 4

contains a functional module of the "cage" type with a magnet installed in the U through window.

Figure 5

functional module of the "cuvette" type.

Figure 6

contains a functional module with a platform for equipment elements.

Figure 7

contains a trap-type functional module.

Figure 8

contains a functional module of the "clamp" type.

Figure 9

contains a functional module with a compartment for installing a power supply.

Figure 10

contains a functional module of the "console" type.

Figure 11

contains a functional module of the "pointer" type.

Figure 12

contains a functional module of the "contact" type.

Figure 13

contains a function module of the "axis" type.

Figure. 14

contains a functional module of the "coil-to-coil" type.

A modular laboratory designer (see Fig. 1) preferably consists of at least one mounting panel 1, at least two mounting profiles 2, central and side functional modules 3 and 4, respectively, with equipment elements, connecting modules 5 (brackets 5), installation modules 6 (supports 6) and measuring instruments (for example, a protractor).

On the side surfaces of the elements of the constructor, markings can be applied in the form of numbering, designation, denomination, etc., which helps in identifying such elements, and on the mounting profiles 2 - a measuring scale. Examples of such markings can be seen in the figures (in particular, Fig. 2) - the numbering of the elements of the constructor for better identification, especially when mentioned in the user manual.

The mounting profiles 2, at least on one side, can be made in such a shape that when the profiles 2 are connected to each other, a longitudinal groove 7 is formed for the movement of the test objects. To fix the profiles 2 to each other and to ensure the reliability of their connection, end connectors (plugs) are used. Thus, the mounting profiles 2 can be used both together, forming a mounting plate with a longitudinal groove 7 when connected, and separately as structural (supporting) elements of the constructor. At the same time, to realize the purpose of the designer, it is enough to use one profile 2 as, for example, the bearing surface for the brackets 5.

Functional modules 3 and 4 with elements of equipment, brackets 5 and stand 6 together form a laboratory modular unit (see Fig. 2), which in most cases carries the main functional load.

The number of functional modules 3 and 4, brackets 5 and supports 6 used in the formation of a laboratory modular block of functional modules depends on the configuration of the elements and the tasks set during the simulation. The standard equipment assumes the presence of one central functional module 3, two functional modules 4, two brackets 5 and a base 6. In some cases, it may be sufficient to use only one of the functional modules, for example, central module 3 or side module 4, if they contain sufficient functionality to solve the problem.

The supports 6 can be made (see Fig. 3) of an I-shaped or T-shaped or cruciform shape with means of their fixation on the working surfaces - the mounting panel 1 or profiles 2, for example, in the form of pins 8 located at the base of the support 6. The pins 8 can be removable, which makes it possible, if necessary, to replace them with other fixing means or to remove them, for example, to place the stand 6 on a surface other than the mounting panel 1 or profiles 2. On the side surfaces of the stands 6 (see Fig. 2) transverse (guide) grooves 9 and fixing grooves 10 for installing the bracket 5 and fixing it on the stand 6.

Bracket 5 (see Fig. 2) is a profile consisting of two lateral and one end surface. In the lower part of the side surfaces of the bracket 5, fixing protrusions 11 can be located for better connection with the stand 6 or with the working surface, for example, profile 2. In the upper part, there are grooves 12 and 13 for installing and fixing functional modules 4 and 3.

The grooves 12 are made open in the direction opposite to the end part of the bracket 5, which minimizes the risk of damage to the bracket 5 when installed in the grooves 12 of the functional module 4. The risk of such damage was identified during the operation of the bracket 5, the groove 12 of which is made open upwards. With repeated assembly and disassembly of the elements, the edges of the upwardly open groove 12 quickly wore out or could be damaged.

In the end part of the bracket 5 there is a groove 13 for interaction and fixation of functional modules 3 and 4, which is made open upwards.

The implementation of the bracket 5 in the form of an element separate from the stand 6 allows it to be independently installed on various working surfaces, for example, on the mounting panel 1 or mounting profiles 2. In addition, such a design of the bracket 5 makes it possible to simplify and reduce the cost of the manufacturing process of the stand 6 and the bracket 5, and also reduce costs when replacing damaged or lost parts of the constructor. Bracket 5 can be turned 180 ⁰ to accommodate a functional module 3 of a non-standard configuration on the base 6.

On the end part of the bracket 5, longitudinal vertical (guiding) protrusions 14 (see Fig. 3) can be made, which, interacting with the edges of the central functional module 3 installed between the brackets 5, ensure reliable fixation of the functional module 3.

On at least one surface of the mounting panel 1 and mounting profiles 2, connecting sockets 15 and 16 are made, respectively, for installing the stand 6 by interacting with its pins 8 or bracket 5 through the projections 11 or directly (depending on the shape of the connecting socket 15), as well as guide grooves (slots) 17 for the installation of brackets 6. Profile 2 may have a combination of such installation means. For example, the slots 17, inside which the slots 15 are located for better fixation of the bracket 5. This significantly expands the functionality of the designer, since you can quickly and easily install various functional modules 3 and 4 or bracket 5 almost anywhere on the mounting panel 1 or profile 2.

Functional modules 3 and 4 are made in the form of multifaceted prisms of simple and complex shapes, their totality and contain (outside and inside) the elements of the devices and the devices themselves, some of them with the possibility of multiple installation and removal.

At least two end surfaces (edges) of the side functional module 3 and the central functional module 4 contain elements 18 for mating and fixing with brackets 5.

Depending on the installation method and configuration, central functional modules 3 and side functional modules 4 are distinguished. On the outer side part of module 4, projections 19 can be made, repeating the shape of the side part of the stand 6, which improve the fit of the module 4 on the bracket 5, its fixation, and also make the shape of the laboratory unit more streamlined, ergonomic and comfortable to use.

On at least one end surface of the module 4, there can be an element 20 for interface with modules 3 (see Figs. 2, 10), in particular through the groove 13 of the bracket 5, and such element 20 is made in the form of a recess (technological groove) for interaction with elements 18 mating and fixing. Element 20 can be used when placing functional elements (device elements) on module 4, in particular for transmitting electric current. For example, in FIG. 2, a plate of a device for transmitting electric current to central modules 3 is installed in element 20.

The housings of functional modules 3 and 4 can have different shapes depending on the features of the equipment elements placed on them, including depending on the number of mating and fixing elements 18 and 20 and / or electrical contacts.

Central functional modules 3 can be I-shaped (two-pin), T-shaped (three-, five- or seven-pin) or cruciform (four- or six-pin) and can be installed on one support 6 or their combination (see. Fig. 3). An example of a five-pin module 3 can be seen in FIG. 3. Such a variety of shapes makes it possible to expand the range of equipment elements used, as well as tasks solved with the help of a designer, for example, by combining them.

Functional modules 3 and 4 can contain electrical / radio components, mechanical, optical elements, parts of devices, mechanisms or the devices and mechanisms themselves, elements.

For example, a functional module of the "cage" type (see Fig. 4) is made in the form of a hollow cylinder 21 with a through window for inserting equipment elements, for example, U, I magnets and protrusions for installing it. Allows you to fix equipment elements and change their spatial orientation as required.

For example, a functional module of the "cuvette" type 22 (see Fig. 5), which can be used in experiments in the field of molecular physics, electrolysis, etc.

For example, the functional module (see Fig. 6) contains a platform 23 for measuring instruments, electronic assemblies, etc., preferably made at an angle. The platform can have built-in equipment elements or installed with the possibility of their removal and replacement (in the form of replaceable linings), while the removable liner has a contact (latch) that secures the liner to the platform. An ammeter, voltmeter, variable resistor, stopwatch or timer, solar battery, breadboard, calculator, counter of revolutions or oscillations, 7-segment indicator, multimeter, etc. can be used as elements of equipment located on the site.

For example, a functional module of the "trap" type (see Fig. 7) contains elements 24 for stopping the ball, preferably consisting of a base plate and located at an acute angle to the base of the trap plate with a window for fixing.

For example, a functional module of the "clamp" type (see Fig. 8) may contain a collet 25, in particular for mounting a rod, which allows in the construction of Fig. 8. 1 fix the functional module 3 at the height required for work above the mounting plate 1.

For example, the functional module 3 (see Fig. 9) contains a compartment 26 for mounting a power source, for example, in the form of batteries, while the power source (s) can be fixed by means of fixing protrusions.

For example, a functional module of the "console" type (see Fig. 10) contains an element 27 for fastening the mounting plate, interacting with the connecting sockets 16 on its lateral parts. In addition, the console can be used to attach an additional element "coil-coil" (see Fig. 14) in the form of a frame 33, which is used in experiments on the study of electromagnetism by means of its interaction with a compass needle, magnet, magnetically conductive materials, electrical measuring instruments and etc.

For example, a functional module of the "pointer" type (see Fig. 11) contains an element 28 for fixing measuring instruments (in this case, a protractor) and determining on their scale the values of preset values for the subsequent installation of modules taking into account such values or determining values as results performance of work (experiment). A protractor can be installed in the indicator to measure the angle of inclination of the mounting plate relative to the mounting panel 1 or other surface.

For example, a functional module of the "contact" type (see Fig. 2, 3, 9, 12) contains elements 29 for transferring electric current between the modules and external devices, as well as for fixing the conductors. Moreover, on at least one side (end) surface of the module, an element is made for transmitting electric current between the modules in the form, for example, of a plate, which is installed using element 20 (groove). The contact device of the functional unit can be made in the form of a clip (including the crocodile type), socket, spring, pin, magnet, nut, clothing button, etc.

For example, a functional module of the "axis" type (see Fig. 13) contains an element 30 in the upper part of the module for mounting, for example, a protractor (or a magnetic compass needle), as well as other measuring instruments or devices having a similar mounting method.

Functional modules such as "axis", "console", "pointer", "contact" can be installed both directly on the base 6 (as independent modules), and on another functional module, for example, side module 4.

For example, a functional module (see Fig. 1) that can be used to install a ball. It contains an electromagnet with a pivoting bracket 31 and is intended, for example, for precise positioning of the ball on the starting line when studying acceleration, speed, etc.

For example, a functional module of the "key" type (switch, switch) with an element 32, which performs the closing and opening of the electrical circuit. The key can be made mechanical (see Fig. 1 - button), electromagnetic, electronic, etc.

The assembly of the constructor elements is carried out as follows.

A laboratory modular unit is formed (see Fig. 2), while brackets 5 are installed in the transverse grooves 9 on the side surfaces of the support 6, fixing them with the grooves 10 of the support 6 and fixing protrusions 11 of the bracket 5.

When installing the functional module 3 into the niche formed by the brackets 5, the vertical protrusions 14 (see Fig. 2, 3) of the bracket 5 interact with the edges of the module 3, providing a straight-line movement of the module 3 and preventing the displacement of the module 3 relative to the stand 6.

The functional module 3 is built into the niche formed by the brackets 5 and is fixed with the elements 18, 20 and the groove 13 of the bracket 5. The functional module 3 can be installed both horizontally and vertically, depending on the required orientation of the equipment element. Side functional modules 4 are installed in the grooves 12 of the bracket 5.

If a functional module 3 of a non-standard size (greater length) is used to form a laboratory unit, the bracket 5 is turned 180 ° relative to the main position, which makes it possible to expand the niche for the functional module 3.

In order to form a laboratory modular unit using a T-shaped or cross-shaped functional module 3, more than one support 6 of the corresponding shapes is used. For example, to install a five-pin functional module 3 (see Fig. 3), two supports 6 are used - an I-shaped support and a T-shaped support, on which two and three brackets 5 are installed, respectively.

To assemble the mounting plate, the profiles 2 are connected to each other using end connections (plugs), while a longitudinal groove 7 is formed for the movement of the test objects. So, with the help of end connectors of various kinds, depending on the tasks, it is possible to obtain a plate (two profiles), a frame (four profiles), a spatial structure (a more complex connection of profiles to each other), etc.

The laboratory modular unit is installed by means of pins 8 of the support 6 into the connecting sockets 15 of the mounting panel 1 or the socket 16 of the profile 2 in any required place.

Functional modules 3 and 4 of the laboratory modular block are used in the amount necessary and sufficient to solve the problem. In this case, it is not necessary to use a standard set of two side modules 4 and a central module 3 (for an I-shaped base 6). For example, only the side modules 4 can be used (see FIG. 14).

The work of the group of inventions can be demonstrated by the example of an installation that will measure the value of the gravitational acceleration of a body, in particular, a ball.

To create the installation, a mounting panel is used, formed from mounting profiles 2 mounting plate, rod, ball and a number of laboratory modular blocks with measuring instruments.

The first laboratory modular unit (mounting plate attachment unit) is formed from an I-shaped support 6, two brackets 5 installed with their end part inside the support 6, a "clamp" -type functional unit with a collet 25 placed so that the collet 25 is located across the support 6 and looks sideways, two functional modules 4 of the "console" type with an element 27 for fixing the mounting plate. The rod is installed in the connecting socket 15 of the mounting panel 1 and the mounting plate fastening unit is fixed at the required height by passing the rod into the collet chuck 25. The unit serves to fasten the mounting plate and change its height (angle of inclination) - it moves relative to the rod (rack) and is fixed in the required position.

Then, a second laboratory modular unit (ball launching unit) is formed from an I-shaped support 6, two brackets 5 installed with the end part inside the support 6, a functional module 3 with an electromagnet and a swing bracket 31, as well as functional modules 4 of the "contact" type with elements 29 for the transmission of electric current.

A third laboratory modular unit (ball stopping unit) is formed from an I-shaped support 6, two brackets 5 installed with the end part inside the support 6, a functional module 3 of the "trap" type with elements 24 for stopping the ball, functional modules 4 of the "pointer" type with element 28 for fixing the protractor, as well as a module 4 of the "axle" type with an element 30 for installing the protractor. The protractor is fixed by means of the element 28 in the side module 4 of the "pointer" type, then rotated to the required position relative to its goniometric scale. The laboratory unit is mounted on the side surface of the mounting plate so that the trap elements 24 are located at the beginning of the longitudinal groove 7 of the plate.

With the help of the fixing elements of the consoles 27 of the first block, the mounting plate is installed at an inclination, and the angle of inclination can be changed by moving the rod into the collet 25.

In addition, for the operation of the installation, two more blocks with an inclined platform 23 are formed and installed to accommodate a stopwatch and a calculator, as well as a block for placing circuit power supplies in compartment 26.

To close and open the circuit, a laboratory modular unit with a "key" -type functional module with a mechanical element 32 in the form of a button is used.

When the angle of rotation of the bracket 31 is changed, the ball moves along the groove 7 and is precisely set on the starting line. The start of the stopwatch starts the movement of the ball and the countdown. The ball, reaching the trap, is fixed by element 24 and at the same time stops the timing with a stopwatch using a sensor (mechanical, optocoupler, reed switch, etc.)

Thus, modular blocks can be installed anywhere in the structure, orienting as needed. All elements are installed in unified, standardized cases, which provides clarity and high "vandal resistance", as well as the interchangeability of parts, and allows you to "fill" the case with any functionality.

The claimed modular constructor has a high development potential and has significant methodological value, as it provides variability and clarity in the performance of experiments, laboratory and practical work. Simple techniques for working with equipment are used, which can be as clear as possible, including through the use of the same equipment for the teacher and the student. As a result, along with the study of physical laws, students develop design and technological skills and assembly and changeover skills.

The modular design of the device makes it easy to replace lost or faulty modules, supplement, develop new modules and complete the cabinet with the required number and functional content. Thus, a decrease in operating costs is achieved, as well as space savings (compactness) when storing the designer as a methodological material.

RU2287861

Claims (27)

A modular constructor containing: central and side functional modules with interface elements with each other and with brackets, made I-shaped or T-shaped or cruciform; brackets in the form of a profile, consisting of one end and two side surfaces with grooves for fixing functional modules; working surfaces in the form of a mounting panel and at least one mounting profile; moreover, the brackets are made with the possibility of self-installation on the working surfaces through the side surfaces of the bracket, and on the working surfaces there are connecting nests and / or slots for installing the brackets. The modular constructor according to claim 1, characterized in that the mounting profiles are configured to form a mounting plate when connected. The modular constructor according to claim 2, characterized in that the mounting plate has a longitudinal groove. The modular constructor according to claim 1, characterized in that it further comprises measuring means. The modular constructor according to claim 1, characterized in that it contains a stand made in an I-shaped, T-shaped or cruciform shape. The modular constructor according to claim 5, characterized in that the bracket has locking protrusions for connection with the stand, which has corresponding grooves. The modular construction kit according to claim 5, characterized in that the base of the stand is equipped with means for attaching it to the working surfaces of the construction kit. The modular constructor according to claim 7, characterized in that the means for attaching the stand to the working surfaces are made in the form of pins. The modular constructor according to claim 8, characterized in that the pins are removable. The modular constructor according to claim 1, characterized in that longitudinal vertical protrusions are made on the end part of the bracket. The modular constructor according to claim 1, characterized in that the interface elements of the functional modules are configured to transmit electric current. The modular constructor according to claim 11, characterized in that the functional module comprises an element for transmitting electric current and fixing the conductors. Modular constructor according to claim 1 or claim 11, characterized in that the functional module is made in the form of a hollow cylinder with a through window for inserting equipment elements. A modular constructor according to claim 1 or claim 11, characterized in that the functional module contains a cuvette. Modular constructor according to claim 1 or claim 11, characterized in that the functional module contains a platform for built-in or removable equipment elements. A modular constructor according to claim 1 or claim 11, characterized in that the functional module contains elements for stopping the ball. The modular constructor according to claim 1 or claim 11, characterized in that the functional module contains a clamp. Modular constructor according to claim 11, characterized in that the functional module contains a compartment for installing a power source. A modular constructor according to claim 1 or claim 11, characterized in that the functional module comprises a console with a mounting plate fastening element. The modular constructor according to claim 1, characterized in that the functional module contains an element for fixing the measuring instruments. A modular constructor according to claim 1 or claim 11, characterized in that the functional module contains an axis for installing devices. The modular constructor according to claim 11, characterized in that the functional module contains an electromagnet with a swing arm. The modular constructor according to claim 11, characterized in that the functional module contains a key. Modular constructor according to claim 1 or claim 11, characterized in that the functional module contains a frame. Laboratory modular design block, containing: at least one central and / or side functional module with elements of interface with brackets and with each other, made I-shaped or T-shaped or cruciform; brackets with grooves in the upper part for fixing functional modules and protrusions in the lower part for connection to the stand; stand with slots for mounting and fixing brackets, made in I-shaped or T-shaped or cruciform. Laboratory modular unit according to claim 25, characterized in that longitudinal vertical protrusions are made on the end part of the bracket. Laboratory modular unit according to claim 25, characterized in that the interface elements of the functional modules are configured to transmit electric current.

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