CN220121707U - Electronic equipment - Google Patents

Abstract

The utility model discloses an electronic device, comprising: the cover opening interlocking device comprises a fixed plate and a key, the key is fixed on the upper surface of the fixed plate, a conductive circuit is arranged on the upper surface of the fixed plate, the key is provided with a conductive layer, the conductive layer faces the conductive circuit along the height direction, and the key can be switched between a first position state and a second position state; the cover opening interlocking device is arranged in the shell, and the fixing plate is fixedly connected with the shell; the cover plate is movably connected with the shell; in a first position state of the key, the cover plate is fixedly connected with the shell, the cover plate is pressed against the key, and the conductive layer is in contact with the conductive circuit; in the second position state of the key, the cover plate is separated from the shell, and the conductive layer and the conductive circuit are arranged at intervals. The utility model has simple structure, low cost and good applicability to various application environments.

Description

Electronic equipment

Technical Field

The utility model relates to the field of automobile electronic products, in particular to electronic equipment.

Background

In some electronic devices, in order to prevent personal safety accidents such as leakage of electricity caused by misoperation, a cover opening interlocking function is required to be specially provided. The cover opening interlocking function is to monitor the opening state of cover plate parts in a certain mode. I.e. when the cover is opened, the master device receives the signal and generates a corresponding action. The cover opening interlocking function is generally realized by connecting a connector plug/socket. The common practice is to install the plug/socket on two different parts respectively, when two parts are installed, the plug/socket is also connected in a butt joint mode, and other functional areas (such as chips) of the product judge whether the two parts are installed or not through the on-off of the identification signal. However, the use of connectors is complicated and costly, and requires strict tolerances and mounting positioning of the connectors themselves due to the need for blind mating, which also creates additional costs.

Disclosure of Invention

The utility model aims to solve the problems of complex structure and high cost in realizing the cover opening interlocking function by adopting a connector. The utility model provides electronic equipment, and the cover opening interlocking device is simple in structure, low in cost and good in applicability to various application environments.

In order to solve the above technical problems, an embodiment of the present utility model discloses an electronic device, including: the cover opening interlocking device comprises a fixed plate and a key, wherein the key is fixed on the upper surface of the fixed plate, a conductive circuit is arranged on the upper surface of the fixed plate, a conductive layer is arranged on the key, the conductive layer faces the conductive circuit along the height direction, and the key can be switched between a first position state and a second position state; the cover opening interlocking device is arranged in the shell, and the fixing plate is fixedly connected with the shell; the cover plate is movably connected with the shell; in the first position state of the key, the cover plate is fixedly connected with the shell, the cover plate is pressed against the key, and the conductive layer is in contact with the conductive circuit; in the second position state of the key, the cover plate is separated from the shell, and the conductive layer and the conductive circuit are arranged at intervals.

By adopting the technical scheme, the key is fixed on the upper surface of the fixed plate, so that the conductive layer faces the conductive circuit, when the cover plate and the shell are installed together, the cover plate presses down the key on the fixed plate, the conductive layer of the key contacts the conductive circuit on the fixed plate, and the conductive layer is electrically connected with the conductive circuit, so that the conductive layer is conducted with the conductive circuit to generate a closed signal. When the cover plate is detached or removed, namely the cover plate is separated from the shell, the keys on the fixed plate lose the action of external force, the keys spring up to the original positions, the conductive layer moves upwards along with the keys and is far away from the conductive circuit on the fixed plate, so that the circuit between the conductive layer and the conductive circuit is disconnected, and a disconnection signal is provided. That is, the key is introduced to replace the connector plug and the socket in the prior art, so that the problem of strict dimensional tolerance requirement is solved, and the cost is reduced.

According to another embodiment of the present utility model, the key includes a pressing portion and a connecting portion, the pressing portion is elastically connected to an upper surface of the connecting portion, the conductive layer is laid on a lower surface of the pressing portion, and the conductive layer faces the conductive line on the upper surface of the fixing plate.

By adopting the technical scheme, the pressing part is used for pressing the conductive layer to contact the conductive circuit, the connecting part is used for being connected and fixed with the fixed plate, and the whole position of the key is prevented from moving, so that the reliable electrical connection between the conductive layer and the conductive circuit is ensured.

According to another embodiment of the present utility model, the connection part includes a first portion fixed to the upper surface of the fixing plate, the first portion being provided with an opening through which the conductive layer of the pressing part can pass.

By adopting the technical scheme, the lower surface of the first part is attached to the upper surface of the fixed plate; the opening is arranged at the center of the first part, extends upwards along the height direction and is used for enabling the conductive layer of the pressing part to penetrate through the opening so as to be in contact with the conductive circuit, and circuit conduction is achieved.

According to another specific embodiment of the present utility model, the second portion of the connecting portion includes two connecting rods, and the two connecting rods are respectively disposed at two ends of the lower surface of the first portion and extend downward along the length direction; the fixing plate is provided with a through hole, and the connecting rod is inserted into the through hole to connect the connecting part with the fixing plate in a clamping way.

By adopting the technical scheme, the through holes are formed in the two ends of the conductive line on the fixed plate along the length direction, and the connecting rods are inserted into the through holes, so that the conductive layer faces the conductive line along the height direction, the position of the whole connecting part is ensured to be relatively fixed, the key is prevented from moving along the length direction or the width direction, the conductive layer of the pressing part is further ensured to be accurately contacted with the conductive line under the action of external force, and the circuit conduction is realized.

According to another specific embodiment of the utility model, the connecting rod is provided with a buckle, the connecting rod is inserted into the through hole on the fixing plate, and the buckle is clamped with the lower surface of the fixing plate.

By adopting the technical scheme, the lower surface of the first part of the connecting part is attached to the upper surface of the fixed plate upwards along the height direction, the resisting surface of the buckle is clamped with the lower surface of the fixed plate downwards along the height direction, that is, the first part and the buckle are fixedly clamped at the upper end and the lower end of the connecting part in the height direction, and the connecting part is prevented from moving up and down along the height direction.

According to another embodiment of the present utility model, the key is made of an elastic material.

By adopting the technical scheme, the key made of the elastic material is more beneficial to being pressed down to the conductive layer to contact the conductive circuit under the action of external force, and can rebound to an initial state under the condition of removing the external force.

According to another embodiment of the present utility model, the conductive line includes a first line and a second line, and the first line and the second line are disconnected.

By adopting the technical scheme, the first circuit and the second circuit are disconnected, namely the first circuit and the second circuit are not electrically connected, so that the conductive layer is required to be simultaneously contacted with the first circuit and the second circuit, the first circuit and the second circuit are electrically connected, and the first circuit, the second circuit and the conductive layer are electrically connected, so that a closed signal is generated.

According to another embodiment of the utility model, the conductive track comprises two metallic conductive elements that do not make an electrical connection.

By adopting the technical scheme, the two metal conductive pieces are not electrically connected, namely the conductive layers are required to be simultaneously contacted with the two metal conductive pieces, the two metal conductive pieces are electrically connected, and the two metal conductive pieces and the conductive layers are electrically conducted, so that a closing signal is generated.

According to another embodiment of the utility model, the conductive end of the metal conductive member passes through the fixing plate in the height direction, and the end face of the conductive end is located on the upper surface of the fixing plate.

By adopting the technical scheme, the conductive ends are positioned on the upper surface of the plastic part, and the pressing part can be used for pressing down to enable the conductive layer to be contacted with the two conductive ends of the metal conductive part, so that the circuit conduction is realized.

Drawings

FIG. 1 shows a perspective view of an electronic device in accordance with an embodiment of the utility model;

FIG. 2 shows an exploded view of an electronic device in accordance with an embodiment of the present utility model;

FIG. 3 shows a perspective view of an electronic device with a cover plate removed, in accordance with an embodiment of the present utility model;

FIG. 4 illustrates a perspective view of an open lid interlock device according to an embodiment of the present utility model;

FIG. 5 shows a perspective view of a fixing plate according to an embodiment of the present utility model;

FIG. 6 shows a perspective view of a key according to an embodiment of the present utility model;

FIG. 7 shows a cross-sectional view of a key in a first position according to an embodiment of the present utility model;

FIG. 8 shows a cross-sectional view of a key in a second position according to an embodiment of the present utility model;

FIG. 9 is a perspective view of an embodiment of the door interlock of the present utility model wherein the securing plate is a plastic piece and the conductive traces are metallic conductive pieces;

fig. 10 shows a cross-sectional view of fig. 9 in accordance with an embodiment of the utility model.

Reference numerals: 100. an electronic device; 1. a cover opening interlocking device; 2. a fixing plate; 200. screw holes; 201. a circuit board; 202. a through hole; 203. a plastic part; 3. a conductive line; 301. a first line; 302. a second line; 303. a metal conductive member; 3030. a conductive terminal; 4. a key; 400. a conductive layer; 401. a pressing part; 4010. round bench; 4011. a cylinder; 4011a, upper cylinder; 4011b lower cylinder; 402. a connection part; 4020. a first portion; 4021. a second portion; 4022. opening holes; 4021a, a buckle; 4021b. A blocking surface; 6. a housing; 601. a screw; 602. a screw; 603. screw holes; 604. screw holes; 605. screw holes; 7. and a cover plate.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The following description contains many specific details for the purpose of providing a thorough understanding of the present utility model. The utility model may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 to 6, the present utility model provides an electronic device 100 including: the cover opening interlocking device 1, the shell 6 and the cover plate 7, wherein the cover opening interlocking device 1 comprises a fixed plate 2 and a key 4, the key 4 is fixed on the upper surface of the fixed plate 2, a conductive circuit 3 is arranged on the upper surface of the fixed plate 2, the key 4 is provided with a conductive layer 400, the conductive layer 400 faces the conductive circuit 3 along the height direction (shown as the Z direction in fig. 4), and the key 4 can be switched between a first position state (shown as fig. 1 and 7) and a second position state (shown as fig. 3 and 8). The fixing plate 2 is a circuit board 201, and the keys 4 are made of elastic materials.

Referring to fig. 3, the cover opening interlocking device 1 is provided in the housing 6, and the fixing plate 2 is fixedly connected with the housing 6 by a screw 601; the cover plate 7 is for detachable connection with the housing 6 by means of screws 602. Referring to fig. 1, 5 and 7, in the first position state of the key 4, the cover 7 is fixedly connected with the housing 6, the cover 7 is pressed against the key 4, the conductive layer 400 contacts the conductive line 3, the conductive layer 400 is electrically connected with the conductive line 3, and the conductive layer 400 is electrically connected with the conductive line 3 to generate a closing signal. Referring to fig. 3, 5 and 8, in the second position of the key 4, the cover is separated from the housing 6, the conductive layer 400 is spaced from the conductive trace 3, i.e. the cover is removed, the key 4 is reset, the conductive layer 400 is separated from the conductive trace 3, the circuit is broken, and a breaking signal is provided.

Illustratively, referring to fig. 1, the electronic device 100 includes an in-vehicle electronic device having a door interlock requirement, such as a high voltage inverter, a dc converter, and the like.

With the above technical solution, referring to fig. 4 to 6, the key 4 is fixed on the upper surface of the fixed plate 2, so that the conductive layer 400 faces the conductive circuit 3, and when the cover 7 is mounted with the housing 6 in fig. 1 and 7, the cover 7 presses against the key 4 on the fixed plate 2, so that the conductive layer 400 of the key 4 contacts the conductive circuit on the fixed plate 2, and the conductive layer 400 is electrically connected with the conductive circuit to generate a closing signal. Referring to fig. 3, 5 and 8, when the cover plate is detached or removed, i.e. the cover plate is separated from the housing 6, the key 4 on the fixed plate 2 loses the external force, the key 4 springs up to be in place, and the conductive layer 400 moves upward and away from the conductive circuit 3 on the fixed plate 2, so that the circuit between the conductive layer 400 and the conductive circuit 3 is disconnected, and a disconnection signal is provided. The elastic conductive key is introduced to replace a connector plug and a connector socket in the prior art, so that the problem of strict dimensional tolerance requirement is solved, and the cost is reduced.

For example, referring to fig. 1 to 5, the electronic device 100 is in a square shape, four corners of the fixing plate 2 are provided with screw holes 200, four corners of the cover plate 7 are provided with screw holes 603, four corners of the inner cavity of the housing 6 are provided with screw holes 605, four corners of the upper end surface of the housing 6 are provided with screw holes 604, and the screws 601 penetrate through the screw holes 200 on the fixing plate 2 and then enter the screw holes 605 in the housing 6 to be fastened, so that the fixing connection between the fixing plate 2 and the housing 6 is realized. The cover opening interlocking device 1 is positioned in the inner cavity of the shell 6, and the key 4 protrudes out of the upper end face of the shell 6.

The screws 602 pass through screw holes 603 on the cover plate 7 and then enter screw holes 604 of the shell 6 to be fastened, so that the cover plate 7 and the shell 6 are fixedly connected. That is, the force with which the screw 602 fastens the cover 7 and the housing 6 together is the force with which the cover 7 presses the key 4.

In some possible embodiments, referring to fig. 4 to 6, the key 4 includes a pressing part 401 and a connecting part 402, the pressing part 401 is elastically connected to an upper surface of the connecting part 402, a conductive layer 400 is laid on a lower surface of the pressing part 401, and the conductive layer 400 faces the conductive trace 3 on an upper surface of the fixing plate 2. Illustratively, the pressing portion 401 is a combination formed by splicing a hollow circular truncated cone 4010 and a cylinder 4011, and the lower end surface of the circular truncated cone 4010 is elastically connected to the upper surface of the connecting portion 402. The cylinder 4011 comprises an upper cylinder 4011a and a lower cylinder 4011b, wherein the outer diameter of the lower cylinder 4011b is smaller than that of the upper cylinder 4011a, the lower cylinder 4011b extends downwards from the lower end face of the upper cylinder 4011a to pass through the round table 4010, and a conductive layer 400 is arranged on the lower end face of the lower cylinder 4011b and used for pressing the key 4 downwards until the conductive layer 400 contacts with the conductive circuit 3, so that circuit conduction is realized.

In some possible embodiments, referring to fig. 4 to 6, the connection part 402 includes a first portion 4020 and a second portion 4021, the first portion 4020 is fixed to the upper surface of the fixing plate 2, the first portion 4020 is provided with an opening 4022, and the conductive layer 400 of the pressing part 401 can pass through the opening 4022. Illustratively, the first portion 4020 has an elliptical-like shape, and a lower surface of the first portion 4020 is fitted to an upper surface of the fixing plate 2; the opening 4022 is disposed at a central position of the first portion 4020, and the opening 4022 extends upward to the hollow of the circular table 4010 along a height direction (shown in a Z direction in fig. 6), and penetrates downward through a lower surface of the first portion 4020, so that the conductive layer 400 of the pressing part 401 can pass through the opening 4022, and is in contact with the conductive trace 3, so as to realize circuit conduction.

In some possible embodiments, referring to fig. 4 to 6, two second portions 4021 (i.e., connecting rods) of the connecting part 402 are provided, and the two connecting rods 4021 are respectively provided at both ends of the lower surface of the first portion 4020 and extend downward in the length direction (shown in the X direction in fig. 4); the fixing plate 2 is provided with a through hole 202, and the connecting rod 4021 is inserted into the through hole 202 to connect the connecting part 402 and the fixing plate 2. For example, referring to fig. 5 and 8, through holes 202 are formed at two ends of the conductive trace 3 on the fixing plate 2 along the length direction, and the connecting rod 4021 is inserted into the through holes 202, so that the conductive layer 400 faces the conductive trace 3 along the height direction (Z direction in fig. 8), and the position of the whole connecting portion 402 can be ensured to be relatively fixed, so that the key 4 is prevented from moving along the length direction or the width direction (Y direction in fig. 5), and the conductive layer 400 of the pressing portion 401 is further ensured to be accurately contacted with the conductive trace 3 under the action of external force, thereby realizing circuit conduction.

In some possible embodiments, referring to fig. 8, the connection rod 4021 is provided with a buckle 4021a, and the connection rod 4021 is inserted into the through hole 202 on the fixing plate 2, and the buckle 4021a is engaged with the lower surface of the fixing plate 2. For example, the clip 4021a is in a shape of an inverted circular truncated cone, that is, the outer diameter of the clip 4021a gradually decreases from top to bottom, the upper end surface of the clip 4021a is provided with a resisting surface 4021b, the outer diameter of the resisting surface 4021b is larger than the outer diameters of other parts of the connecting rod 4021, when the connecting rod 4021 is inserted into the through hole 202 downwards, the clip 4021a is extruded through the through hole 202 due to elastic material thereof until the lower surface of the first part 4020 of the connecting part 402 is attached to the upper surface of the fixing plate 2, at this time, the clip 4021a is sprung, and the resisting surface 4021b is clamped with the lower surface of the fixing plate 2, thereby limiting the connecting part 402 to move along the height direction (shown in the Z direction in fig. 8).

That is, the lower surface of the first portion 4020 of the connection part 402 is attached to the upper surface of the fixing plate 2 in the height direction (shown in the Z direction in fig. 8) and the abutment surface 4021b of the clip 4021a is engaged with the lower surface of the fixing plate 2 in the height direction, that is, the first portion 4020 and the clip 4021a fix the upper and lower ends of the connection part 402 in the height direction, so that the connection part 402 is prevented from moving up and down in the height direction.

In some possible embodiments, referring to fig. 5 and 6, the conductive line 3 includes a first line 301 and a second line 302, and the first line 301 and the second line 302 are disconnected. Illustratively, the first wire 301 and the second wire 302 are disconnected, i.e., the first wire 301 and the second wire 302 do not make electrical connection, thereby requiring the conductive layer 400 to contact the first wire 301 and the second wire 302 simultaneously, electrically connecting the first wire 301 and the second wire 302 such that the first wire 301, the second wire 302, and the conductive layer 400 are electrically conductive, thereby generating a close signal.

In some possible embodiments, referring to fig. 9 and 10, the conductive trace 3 is two metallic conductive elements 303 that do not make an electrical connection. Illustratively, the fixing plate 2 is a plastic member 203, and the metal conductive member 303 is fixed to the plastic member 203 by insert molding. Illustratively, the two metallic conductive elements 303 do not make electrical connection, i.e., thus the conductive layer is required to contact the two metallic conductive elements 303 simultaneously, electrically connecting the two metallic conductive elements 303 such that the two metallic conductive elements 303 are in electrical communication with the conductive layer, thereby generating a close signal.

Referring to fig. 5 and 9, that is, in one embodiment, the fixing plate 2 may be specifically the circuit board 201 shown in fig. 5, and the conductive traces 3 thereof are a first trace 301 and a second trace 302 on the circuit board 201. In another embodiment, the fixing plate 2 may be a plastic member 203 shown in fig. 9, and the conductive wires 3 may be two metal conductive members 303 on the plastic member 203. The specific forms of the fixing plate 2 and the conductive circuit 3 are not limited in the present utility model, and all the fixing plate 2 which can fix the key 4 and is provided with the conductive circuit 3 for the conductive layer 400 to contact with to generate the conductive circuit are all within the protection scope of the present utility model.

In some possible embodiments, referring to fig. 10, the conductive end 3030 of the metal conductive member 303 passes through the plastic member 203 in a height direction (Z direction in fig. 10), and an end surface of the conductive end 3030 is located on an upper surface of the plastic member 203. Illustratively, the conductive terminals 3030 are located on the upper surface of the plastic member 203, and the pressing portion 401 is pressed down so that the conductive layer contacts the two conductive terminals 3030 of the metal conductive member 303, thereby completing the circuit.

In summary, the utility model realizes the cover opening interlocking scheme with low cost and low assembly requirement by introducing the concept of the elastic conductive key. Compared with the prior art, the utility model has the advantages of simple structure, mature process, low production and manufacturing cost of parts, low assembly and use cost, flexible arrangement and good applicability to various application environments.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.

Claims (9)

1. An electronic device, comprising:

the cover opening interlocking device comprises a fixed plate and a key, wherein the key is fixed on the upper surface of the fixed plate, a conductive circuit is arranged on the upper surface of the fixed plate, a conductive layer is arranged on the key, the conductive layer faces the conductive circuit along the height direction, and the key can be switched between a first position state and a second position state;

the cover opening interlocking device is arranged in the shell, and the fixing plate is fixedly connected with the shell;

the cover plate is movably connected with the shell;

in the first position state of the key, the cover plate is fixedly connected with the shell, the cover plate is pressed against the key, and the conductive layer is in contact with the conductive circuit;

in the second position state of the key, the cover plate is separated from the shell, and the conductive layer and the conductive circuit are arranged at intervals.

2. The electronic device of claim 1, wherein the key comprises a pressing portion and a connecting portion, the pressing portion is elastically connected to an upper surface of the connecting portion, the conductive layer is laid on a lower surface of the pressing portion, and the conductive layer faces the conductive line on the upper surface of the fixing plate.

3. The electronic device according to claim 2, wherein the connection portion includes a first portion and a second portion, the first portion is fixed to an upper surface of the fixing plate, the first portion is provided with an opening, and the conductive layer of the pressing portion can pass through the opening.

4. The electronic device according to claim 3, wherein the second portion of the connecting portion includes two connecting rods, and two connecting rods are provided at both ends of the lower surface of the first portion in the length direction and extend downward, respectively; the fixing plate is provided with a through hole, and the connecting rod is inserted into the through hole to connect the connecting part with the fixing plate in a clamping way.

5. The electronic device of claim 4, wherein the connecting rod is provided with a buckle, the connecting rod is inserted into the through hole on the fixing plate, and the buckle is clamped with the lower surface of the fixing plate.

6. The electronic device of claim 1, wherein the key is an elastic material.

7. The electronic device of claim 1, wherein the conductive line comprises a first line and a second line, the first line and the second line being disconnected.

8. The electronic device of claim 1, wherein the conductive trace comprises two metallic conductive elements that do not make an electrical connection.

9. The electronic device of claim 8, wherein the conductive end of the metal conductive member passes through the fixing plate in the height direction, and an end surface of the conductive end is located on an upper surface of the fixing plate.