RU194191U1 - ELECTRONIC DEVICE WITH CONNECTIVITY - Google Patents

Abstract

The invention relates to the design of detachable connections of electrical devices with a cable. The technical result consists in simplifying the design of the device, reducing its dimensions and material consumption. The detachable electronic device comprises a detachable hollow body and wires 10 with terminals. A printed circuit board 13 with contacts 14 fixed to it is installed in the first part 8 of the case. The design feature of the electronic device is that the second part 9 of the case is made with holes located opposite the contacts 13, and the terminals of the wires 10 are fixed in the holes of the second part 9 of the case. In a preferred embodiment of the device, the second housing part 9 is made with a protruding seat 10 in which these holes are formed. In a sealed version of the device, parts 8 and 9 of the housing are connected to each other through a seal 15, and the terminals of the wires 11 are sealed relative to the second part of the housing 9 by means of seals 12. 2 zp f-ly, 2 ill.

Description

The utility model relates to the field of electrical engineering, namely, to the design of detachable connections of electronic devices with switching wires (cables).

As is known from the state of the art, modern electronic devices (EIs) can have both plug-in and plug-in electrical connections, and sometimes a combination of these types of connections. With a non-detachable connection, the switching wires (cables) are soldered (welded) directly to the board.

The advantage of a plug-in connection is the ability to easily turn off the control unit for repair, replacement, maintenance, etc., however, there are also disadvantages:

increase in cost, and the higher the current, the higher the price of the connector;

increase in size, and the higher the operating current, the larger the size;

heat loss at the contact point, and the higher the current, the higher the loss;

deterioration of contact during repeated closure / opening of the connector;

the complexity and high cost of sealed joints.

An all-in-one connection is deprived of all these drawbacks, but this is blocked by the main drawback - the difficulty of connecting / disconnecting the EA from the switching wires. In fact, each connection / disconnection is a complex and responsible process of switching conductors using specialized tools (soldering iron, press pliers, etc.) and insulation materials, which makes it impossible to quickly and repeatedly connect / disconnect and leads to damage to the wiring.

Thus, it is now common practice that power plants that need to be turned off at least occasionally are equipped with a detachable connection of one design or another. Different criteria have been adopted in different industries for the need to equip the EU with plug-in connections, in particular, in the automotive industry the vast majority of EU has connectors. This is due to industry standards for maintenance and repair. Indeed, the car is operated in harsh conditions and there is always the likelihood of failure of certain power plants. Repair is carried out by the method of nodal replacement, and therefore detachable connections are preferred for quick and quality service. If, however, to replace it, it is necessary to disconnect the wiring of the EU from the wiring of the car, then this will take a considerable time and will lead to a rapid deterioration of the wiring, because each switching cycle will lead to numerous bends of the wires and, in some cases, to reduce their length. A similar situation is observed in other sectors, for example, in mechanical engineering.

For example, in the field of protection against car theft, the following trend has now formed: non-plug connections have only cheap or small-sized EUs. As described above, this is due to several key factors: price, size and complexity of sealing detachable joints. The latter factor is important for power plants located in the engine compartment. Such power supplies include, in particular: StarLine R4 code relay manufactured by Starline https://store.starline.ru/catalog/dopolnitelnoe_oborudovanie/starline_r4/.

Radio module of the engine compartment Pandora RHM-06 manufactured by NPO Telemetry https://alarmtrade.ru/production/radiomodul-motornogo-otseka-pandora-rhm-06/, GPS / GLOHACC-270 module (sealed) produced by the fuel and energy industry https: // tecel .ru / catalog / dopolnitelnue-ustroustva-dlуa-okhrannykh-sistem / modul-gps-glonass-270 /.

In the automotive industry, the design of a detachable connection is common, when the part of the connector intended for installation on the board is combined with the housing (part of the housing) of the control unit. In particular, this design is used in the engine compartment module HCU-230 manufactured by TEK Electronics LLC https://tecel.ru/catalog/dopolnitelnye-ustroystva-dlya-okhrannykh-sistem/podkapotnyy-modul-hcu-230/. As the prototype of the proposed utility model, the above hood module HCU-230 was selected. A detachable connection according to the prototype (Fig. 1) contains the upper part 1 of the housing, into which the mating part 2 of the connector is inserted, to which the wires 3 are crimped by terminals, a printed circuit board 4 with contacts 5 soldered to it, mounted on the lower part 6 of the case. Sealing seals 7 are located on the counterpart 2 of the connector. Part of the connector in contact with the printed circuit board is excluded from the design. This design allows you to save a little on the cost of one part of the connector, but does not affect the dimensions and does not solve the sealing problem, for which you have to solve the problems of sealing the case, the mating part of the connector and wires.

The technical problem solved by the utility model is to reduce the material consumption and simplify the design of the device.

The technical problem is solved by an electronic device with a detachable connection containing a detachable hollow body of two parts, a printed circuit board with contacts fixed to it, installed in the first part of the case, and wires with terminals, while the design feature of the electronic device is that the second part of the case is made with holes located opposite the contacts, and the terminals of the wires are fixed in the holes of the second part of the housing.

In a sealed version of the device, the housing parts are connected to each other through a sealant, and the wires with terminals are sealed relative to the second housing part by means of seals.

In a preferred embodiment of the device, the second part of the housing is made with a protruding seat in which these holes are formed.

The technical result of the utility model is to enable exclusion from the design of the mating connector as a separate part by combining the wired part of the connector and part of the housing of the EA in one part of the housing.

This design allows to reduce material consumption and, consequently, the cost of EU due to the rejection of all parts of the connector. In addition, a reduction in the dimensions of the EU is achieved by eliminating the thickness of the upper part of the housing of the counterpart 2 of the connector protruding beyond the edge of the seat of the upper part 1 of the housing. Also achieved is the simplification of sealing due to the rejection of the seals 7 of the counterpart 2 of the connector (Fig. 1).

In FIG. 1 shows a General view of the device according to the prototype - the hood module HCU-230 in a disassembled state.

In FIG. 2 - a General view of the proposed device in an exploded state.

The proposed electronic device with a detachable connection in a sealed design contains a detachable housing comprising two parts - the first (lower) part 8 and the second (upper) part 9 with holes. In a preferred embodiment, the second part 9 of the housing has a molded simplified protruding seat 10 in which these holes are formed for securing the terminals of the wires 11. The wires 11 with crimped terminals are inserted together with the seals 12.

A printed circuit board 13 is installed on the first (lower) part 8 of the case, on which the contacts 14 are located (located) opposite the seat 10 with the terminals of the wires 11. On the first part 8 of the case, a sealant 15 is installed to seal the connection of parts 8 and 9 of the control unit housing. If there is no need for sealing, then seals 12 and 15 are excluded from the design.

In addition to the two main parts 8 and 9, the housing can have additional parts, for example, it can have a removable or hinged cover for access, for example, to a SIM card or an insert of transparent material for indication (not shown in the drawing).

When assembling the EU in the production of wires 11 are inserted into the holes of the seat 10, which forms a tourniquet (cable). When connecting the EU, for example, in a car, wires 11 from the bundle (cable) are connected in the necessary way according to the technology (soldering, crimping). It is not necessary to disconnect the wiring from the EU.

To disconnect the EU from the wiring (opening the connector), you need to remove the second (upper) part 9 of the housing. If the shutdown was carried out to replace the EU, then the printed circuit board 13 with contacts 14 is to be replaced, while the case, including the connected wiring, remains.

The proposed design of EU with detachable connection can be implemented in practice with the existing level of technology. Moreover, the applicant has manufactured and tested the device TES-4540 Relay Module, which proves the possibility of implementing the proposed design.

Claims (3)

1. An electronic device with a detachable connection, comprising a detachable hollow case, comprising two parts, a printed circuit board with contacts fixed to it, installed in the first part of the case, and wires with terminals, characterized in that the second part of the case is made with holes located opposite the contacts , and the terminals of the wires are fixed in the holes of the second part of the housing. 2. The device according to claim 1, characterized in that the housing parts are connected to each other through a sealant, and the wires with terminals are sealed relative to the second housing part by means of seals. 3. The device according to p. 1, characterized in that the second part of the housing is made with a protruding seat in which these holes are formed.

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