CN218959273U

CN218959273U - Connecting device, sensor and electricity utilization device

Info

Publication number: CN218959273U
Application number: CN202223154878.XU
Authority: CN
Inventors: 陈祥飞
Original assignee: Hangzhou Ezviz Software Co Ltd
Current assignee: Hangzhou Ezviz Software Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-02
Anticipated expiration: 2032-11-25

Abstract

The application discloses a connecting device, a sensor and an electric device, and relates to a mechanical connecting mechanism. A connection device of the present application includes: a housing provided with an opening, the housing being provided with a first connection portion; the shell cover is covered at the position of the opening, the shell cover is provided with a second connecting part, the first connecting part is rotationally connected with the second connecting part, and the first axis of the first connecting part and the first axis of the second connecting part are the same as the direction of the opening; the connecting piece is fixedly arranged in the shell, a first clamping part is arranged on one side, facing the shell cover, of the connecting piece, a second clamping part is arranged on the inner surface of the shell cover, and the first clamping part is clamped with the second clamping part. The second connecting portion of cap and the first connecting portion swivelling joint of casing can inject the position along the opening direction, and when cap and casing swivelling joint, first joint portion also makes the degree of freedom of cap relative casing be zero with the circumference and the second joint portion joint of rotatory mode along first axis, guarantees the reliability of connection.

Description

Connecting device, sensor and electricity utilization device

Technical Field

The utility model relates to a mechanical connection structure, in particular to a connection device, a sensor and an electric device.

Background

The shell can be used for loading electronic boards and mechanical parts in various fields, and after the electronic boards, the mechanical parts and the like are assembled, the shell cover is needed to cover and encapsulate the shell. The structure that present cap and casing are connected adopts screw connection generally, and above-mentioned connected mode exists and connects unreliable problem, and when occasion such as vibration was used, the screw was taken off from the cap easily, made the cap break away from on the casing easily.

Disclosure of Invention

The utility model aims to at least solve the problem that the existing shell is unreliable in connection with a shell cover. The aim is achieved by the following technical scheme:

a first aspect of the present utility model proposes a connection device comprising:

a housing provided with an opening, the housing being provided with a first connection portion;

the shell cover is covered at the position of the opening and can rotate around a first axis at the position of the opening of the shell, the direction of the first axis is the same as the direction of the opening, the shell cover is provided with a second connecting part, and the first connecting part is in plug-in fit with the second connecting part along the circumferential direction of the first axis;

the connecting piece, fixedly set up in the casing, the connecting piece orientation one side of cap is provided with first joint portion, the internal surface of cap is provided with second joint portion, follows the circumference of first axis, first joint portion with second joint portion joint is in order to inject the cap is relative the casing is followed the position of the circumference direction of first axis.

According to the connecting device provided by the utility model, the first connecting part and the second connecting part are in plug-in fit, so that the position of the shell cover along the opening direction can be limited, the first clamping part is clamped with the second clamping part in a rotating manner along the first axis circumferential direction while the first connecting part and the second connecting part are in plug-in fit, the rotation of the shell cover relative to the shell can be limited, the freedom degree of the shell cover relative to the shell is zero, the reliability of connection is ensured, the shell cover cannot fall off from the shell even if the shell cover vibrates and other occasions exist, and the connecting structure is adopted, so that the installation is simple, and the installation efficiency can be improved.

In addition, the connecting device according to the utility model can also have the following additional technical features:

in some embodiments of the present utility model, the second clamping portion is a clamping groove, a notch of the clamping groove is disposed towards the connecting piece, a first elastic portion is disposed on a side, facing the cover, of the connecting piece, the first clamping portion is a clamping protrusion, the clamping protrusion is connected with the first elastic portion, and the first elastic portion is used for bouncing the clamping protrusion into the clamping groove.

In the process of clamping the clamping bulge and the clamping groove, the first elastic part is extruded to deform, so that the clamping bulge moves away from the direction of the shell cover along the direction of the first axis, and when the clamping bulge moves to the position opposite to the clamping groove, the clamping bulge is sprung into the clamping groove of the shell cover towards the direction of the shell cover under the elastic action of the first elastic part, so that the relative rotation of the shell cover and the shell body is limited, and the connection reliability of the shell cover and the shell body is ensured.

In some embodiments of the utility model, the first resilient portion is a cantilever structure.

Therefore, compared with a structure adopting a spring, the structure of the connecting piece can be simplified, the assembly process is simplified, and the assembly efficiency is improved.

In some embodiments of the present utility model, the inner surface of the cover is provided with a bevel, the end of the bevel with the largest distance from the upper surface of the cover is a first end, the end with the smallest distance from the upper surface of the cover is a second end, the clamping groove is located at one side of the bevel, and is located closer to the second end than the first end, and the bevel is configured as a sliding surface of the clamping protrusion.

Before the clamping bulge is clamped into the clamping groove, the clamping bulge slides on the inclined plane in the process of rotationally connecting the shell cover and the shell, so that the first elastic part is extruded to bend, when the clamping bulge moves to the relative position of the clamping groove, the shell cover is rotationally connected with the shell, the clamping bulge is sprung into the clamping groove under the action of the elastic force of the first elastic part, and in the process of installation, the sound that the clamping bulge is sprung into the clamping groove can be heard when the installation is in place, so that whether the shell cover is reliably connected with the shell can be determined.

In some embodiments of the present utility model, the cover is provided with a second elastic portion, the second elastic portion is a cantilever structure, at least part of the cantilever structure of the second elastic portion covers the clamping protrusion along the direction of the first axis, and the cantilever structure has a first bending state of bending towards one side of the connecting piece;

when the cantilever structure is in the first bending state, the second clamping part is separated from the clamping groove and is propped against the second elastic part.

When the shell cover is required to be detached from the shell, the second elastic part can be pressed to enable the second elastic part to be bent and deformed, at the moment, the second elastic part extrudes the clamping protrusion, the first elastic part connected to the clamping protrusion is also bent and deformed, the clamping protrusion is further separated from the clamping groove, and the second elastic part is pressed to be not released; simultaneously, the shell cover is rotated again, the shell cover and the shell body rotate relatively, the clamping protrusions are staggered with the clamping grooves, the second elastic parts can be loosened at the moment, the shell cover can be opened from the shell body by continuing to rotate the shell cover, and by adopting the structure, the reliability of connection between the shell cover and the shell body is guaranteed, and meanwhile, the shell cover is opened rapidly.

In some embodiments of the present utility model, the first connecting portion is a limiting protrusion, and the second connecting portion is a limiting groove; or the first connecting part is a limiting groove, and the second connecting part is a limiting protrusion;

the quantity of spacing protruding and the quantity of spacing groove are a plurality of, and a plurality of spacing protruding and a plurality of spacing groove set up along the circumference interval of first axis respectively, and every spacing groove has the leading-in mouth, along the circumference of first axis, and a plurality of leading-in mouths orientation is the same, and every spacing protruding inserts from leading-in mouth and locates in the spacing groove.

The shell cover rotates on the opening of the shell in a forward rotation mode, the limiting protrusion is screwed into the limiting groove to limit the position of the shell cover on the shell along the opening direction, the limiting protrusion is screwed into the limiting groove and is clamped into the clamping groove, the shell cover cannot rotate reversely relative to the shell, and the reliability of connection is guaranteed.

In some embodiments of the present utility model, the first clamping portion is a clamping groove, a notch of the clamping groove is arranged towards the shell cover, the shell cover is provided with a second elastic portion, the second elastic portion is of a cantilever structure, the second clamping portion is a clamping protrusion, the clamping protrusion is connected with the cantilever structure, and the second elastic portion is used for bouncing the clamping protrusion into the clamping groove.

The second elastic part of the shell cover is provided with a clamping protrusion, and when the shell cover rotates relative to the shell and the clamping protrusion moves to the relative position of the clamping groove, the clamping protrusion is sprung into the clamping groove under the action of the elasticity of the second elastic part; in the case lid opening process, can upwards lift up the direction of keeping away from the connecting piece with second elastic part, make the bellied draw-in groove that drops of joint, rotatory cap again realizes opening of cap, and the cap lid closes on the casing and can guarantee the reliability of connection, also is convenient for open the cap simultaneously fast.

In some embodiments of the utility model, the second resilient portion is integrally formed with the housing cover and/or the connector is integrally formed with the housing.

Compared with the mode of adopting screw fixation, the number of parts can be simplified, and the installation efficiency is improved.

A second aspect of the utility model proposes a sensor comprising the connection device of the first aspect.

A third aspect of the utility model proposes an electrical device comprising the sensor of the second aspect; or comprise the connection means of the first aspect.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 schematically illustrates an exploded view of a connection device according to some embodiments of the present application;

FIG. 2 schematically illustrates a partial view of a connector of a connection device according to some embodiments of the present application;

FIG. 3 schematically illustrates a partial view of a cover of a connection device according to some embodiments of the present application;

FIG. 4 schematically illustrates a partial cross-sectional view of a first view of a connection device (where a first clip portion abuts a ramp) according to some embodiments of the present application;

FIG. 5 schematically illustrates a partial cross-sectional view of a second view of a connection device (where the first clip portion abuts the ramp) according to some embodiments of the present application;

FIG. 6 schematically illustrates a partial cross-sectional view of a second perspective of a connection device according to some embodiments of the present application (the first and second clamping portions being in a clamped state);

FIG. 7 schematically illustrates a view of the housing and cover positional relationship of a connection device according to some embodiments of the present application;

FIG. 8 schematically illustrates a view of the housing and cover positional relationship of a connection device according to some embodiments of the present application;

FIG. 9 schematically illustrates an exploded view of a connection device according to some embodiments of the present application;

FIG. 10 schematically illustrates a partial view of a cover of a connection device according to some embodiments of the present application.

The reference numerals are as follows:

the device comprises a shell 10, a first connecting part 11, a shell cover 20, a second connecting part 21, a second clamping part 22, a second elastic part 23, an inclined surface 24, a connecting piece 30, a first clamping part 31, a first elastic part 32 and a first axis A.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

Referring to fig. 1 to 6, according to an embodiment of the present utility model, a connecting device is provided, which includes a housing 10, a housing cover 20, and a connecting member 30. Wherein the housing 10 is provided with an opening, the housing 10 is provided with a first connection portion 11. The casing cover 20 is covered in the open position and can rotate at the open position of the casing 10 by the first axis A, the direction of the first axis A is the same as the open direction, the casing cover 20 is provided with a second connecting part 21, and the first connecting part 11 is in plug-in fit with the second connecting part 21 along the circumferential direction of the first axis A. The connecting piece 30 is fixedly arranged in the shell 10, a first clamping part 31 is arranged on one side, facing the shell cover 20, of the connecting piece 30, a second clamping part 22 is arranged on the inner surface of the shell cover 20, and the first clamping part 31 and the second clamping part 22 are clamped along the circumferential direction of the first axis A so as to limit the position of the shell cover 20 relative to the shell 10 along the circumferential direction of the first axis A.

The rotational connection of the first connection 11 and the second connection 21 may be, but is not limited to, a threaded connection, a hinge, a snap-fit.

Illustratively, the first connection portion 11 may be an external thread, and the second connection portion 21 may be an internal thread, that is, an external thread is provided on the outer circumference of the opening of the housing 10, and the cover 20 is provided with an internal thread, and the cover 20 is screwed with the housing 10 and covers the opening. The first connection portion 11 may be an internal thread, and the second connection portion 21 may be an external thread.

The first connection portion 11 is an articulated shaft, the articulated shaft is located at one side of the outside of the opening, the axis direction of the articulated shaft is the same as the direction of the opening, the second connection portion 21 is a connection hole, the connection hole is hinged on the articulated shaft, the axis of the connection hole is perpendicular to the thickness direction of the cover 20, the cover 20 is of a flat plate structure, and the connection hole is hinged on the articulated shaft.

Illustratively, the rotational connection of the cover 20 and the housing 10 may also be a mating structure of a limit slot and a limit protrusion (described in detail below).

The first clamping portion 31 is clamped with the second clamping portion 22, and the clamping direction of the first clamping portion and the second clamping portion is the same as the direction of the first axis, that is, the casing cover 20 rotates relative to the casing 10, so that the first clamping portion 31 is clamped with the second clamping portion 22. If the casing cover 20 is screwed with the casing 10, when the casing cover 20 rotates relative to the casing 10, the first clamping portion 31 and the second clamping portion 22 can be clamped together to limit the rotation of the casing cover 20 and the casing 10.

The first connecting portion 11 is in plug-in fit with the second connecting portion 21, so that the position of the casing cover 20 along the opening direction can be limited, the first connecting portion 11 is in plug-in fit with the second connecting portion 21, and meanwhile, the first clamping portion 31 is also clamped with the second clamping portion 22 in a rotating manner along the circumferential direction of the first axis A, so that the rotation of the casing cover 20 relative to the casing 10 can be limited, the freedom degree of the casing cover 20 relative to the casing 10 is zero, the connection reliability is ensured, the casing cover 20 cannot fall off from the casing 10 even if occasions such as vibration exist, and the installation efficiency can be improved by adopting the connecting structure.

In some embodiments, referring to fig. 3 and 6, the second clamping portion 22 is a clamping groove, a notch of the clamping groove is disposed towards the connecting piece 30, a first elastic portion 32 is disposed on a side of the connecting piece 30 towards the housing cover 20, the first clamping portion 31 is a clamping protrusion, the clamping protrusion is connected with the first elastic portion 32, and the first elastic portion 32 is used for bouncing the clamping protrusion into the clamping groove.

The first elastic portion 32 may be, but not limited to, a spring or a leaf spring structure.

The first elastic portion 32 is a compression spring, the connecting piece 30 is provided with a guide groove towards one side of the casing cover 20, the clamping protrusion is slidably disposed in the guide groove, the compression spring is disposed in the guide groove, two ends of the compression spring are respectively abutted against the bottom of the guide groove and the clamping protrusion, when the casing cover 20 and the casing 10 are covered, the compression spring is in a compression state, when the casing cover 20 and the casing 10 relatively rotate, and when the clamping protrusion moves to the relative position of the clamping groove, the compression spring ejects the clamping protrusion into the clamping groove, so that the clamping of the casing cover 20 and the casing 10 is realized.

The engaging protrusion is connected to the first elastic portion 32, and may be integrally formed, bonded, screwed, or the like, which is not particularly limited herein.

The first elastic portion 32 and the connecting member 30 may be integrally formed, or may be fixedly connected.

The shape of the clamping groove can be, but is not limited to, a U-shaped groove, a rectangular groove, a T-shaped groove and the like. The notch of draw-in groove sets up towards the support.

In the process of clamping the clamping protrusion and the clamping groove, the clamping protrusion is extruded by the shell cover 20, so that the first elastic part 32 is elastically deformed, the clamping protrusion moves away from the shell cover 20 along the direction of the first axis, and when the clamping protrusion moves to a position opposite to the clamping groove, the clamping protrusion is sprung into the clamping groove of the shell cover 20 towards the shell cover 20 under the action of the elasticity of the first elastic part 32, so that the relative rotation of the shell cover 20 and the shell 10 is limited, and the connection reliability of the shell cover 20 and the shell 10 is ensured.

In some embodiments, referring to fig. 1, the first elastic portion 32 has a cantilever structure.

Illustratively, the cantilever structure and the connector 30 form an incompletely closed channel that allows elastic deformation of the cantilever structure when compressed.

The connecting piece 30 is provided with a receiving groove toward the side of the housing cover 20, the first elastic portion 32 is of a sheet structure, one end of the first elastic portion 32 is fixed to the connecting piece 30, the other end of the first elastic portion is a free end, the free end of the first elastic portion 32 is located at the receiving groove, and the clamping protrusion is located at the free end of the first elastic portion 32.

The first elastic portion 32 may be an upward-tilting bending structure, and the upward-tilting bending structure may also constitute a cantilever.

The first elastic portion 32 has a cantilever structure, which can simplify the structure as compared with a structure using a spring,

thus, the structure of the connector 30 can be simplified, the assembling process can be simplified, and the assembling efficiency can be improved, compared with the structure using the spring.

In some embodiments, referring to fig. 4-6, the end of the inclined surface 24 with the greatest distance from the upper surface of the cover 20 is a first end, the end with the smallest distance from the upper surface of the cover 20 is a second end, the clamping groove is located at one side of the inclined surface 24 and is located closer to the second end than the first end, and the inclined surface 24 is configured to be clamped with the sliding surface of the protrusion.

In the rotation process of the shell cover 20 and the shell 10, the clamping protrusion is contacted with the inclined plane 24, and slides on the inclined plane 24, so that the clamping protrusion moves away from the shell cover 20, the first elastic part 32 is compressed, and when the clamping protrusion moves to the relative position of the clamping groove, the first elastic part 32 is restored to deform, so that the clamping protrusion is sprung into the clamping groove, and the clamping of the clamping protrusion and the clamping groove is realized. During the mounting process, the sound that the clamping protrusion is sprung into the clamping groove can be heard when the mounting is in place, so that whether the shell cover 20 is reliably connected with the shell 10 can also be determined.

In some embodiments, referring to fig. 1 and 3, the cover 20 is provided with a second elastic portion 23, the second elastic portion 23 is a cantilever structure, at least a portion of the cantilever structure of the second elastic portion 23 covers the clamping protrusion along the direction of the first axis, and the cantilever structure has a first bending state bending towards one side of the connecting member 30. When the cantilever structure is in the first bending state, the second clamping part 22 is separated from the clamping groove and is abutted against the second elastic part 23.

The second elastic portion 23 is substantially identical to the cantilever structure of the first elastic portion 32 described above, and will not be described in detail herein.

When the case cover 20 needs to be detached from the case 10, the second elastic portion 23 can be pressed to bend and deform the second elastic portion 23, at this time, the second elastic portion 23 presses the clamping protrusion, and the first elastic portion 32 connected to the clamping protrusion is also bent and deformed, so that the clamping protrusion is further separated from the clamping groove, and the second elastic portion 23 is pressed and not put; simultaneously, the shell cover 20 is rotated again, the shell cover 20 and the shell 10 relatively rotate, the clamping protrusions are staggered with the clamping grooves, the second elastic parts 23 can be loosened at the moment, the shell cover 20 can be opened from the shell 10 by continuing to rotate the shell cover 20, and by adopting the structure, the reliability of connection between the shell cover 20 and the shell 10 is ensured, and meanwhile, the shell cover 20 is opened rapidly. When the connecting device of the embodiment of the application is applied to toy articles, the case cover 20 can be prevented from being opened by mistake by children, so that the children can phagocytize the elements with smaller inner volume of the case 10, and compared with the connecting structure adopting screws, the assembling process is simplified, and the disassembling and assembling are more convenient.

In some embodiments, referring to fig. 7, the first connecting portion 11 is a limiting protrusion, and the second connecting portion 21 is a limiting groove; referring to fig. 8, the first connecting portion 11 is a limiting groove, and the second connecting portion 21 is a limiting protrusion. The quantity of spacing protruding and the quantity of spacing groove are a plurality of, and a plurality of spacing protruding and a plurality of spacing groove set up along the circumference interval of first axis respectively, and every spacing groove has the leading-in mouth, along the circumference of first axis, and a plurality of leading-in mouths orientation is the same, and every spacing protruding inserts from leading-in mouth and locates in the spacing groove.

The shape of the limit protrusion may be, but not limited to, a square protrusion or a circular protrusion, and the like, and is not particularly limited herein.

The limit groove can be, but is not limited to, a U-shaped groove, a rectangular groove, etc. The present utility model is not particularly limited herein.

The opening of the housing 10 is a circular opening, a plurality of spacing grooves are uniformly formed in the periphery of the opening, the housing cover 20 is circular, a plurality of spacing protrusions are formed in the periphery of the housing cover 20, the first axis coincides with the axis of the opening, when the housing cover 20 and the housing 10 rotate around the first axis, the spacing protrusions can be screwed into the spacing grooves, and the spacing grooves limit the circumferential positions of the spacing protrusions along the first axis.

The first axis may also be disposed off-axis from the opening, such as on one side of the opening, and is not specifically limited herein.

The shell cover 20 rotates on the opening of the shell 10 in a forward rotation mode, so that the limiting protrusion is screwed into the limiting groove to limit the position of the shell cover 20 on the shell 10 along the opening direction, the limiting protrusion is screwed into the limiting groove, meanwhile, the clamping protrusion is clamped into the clamping groove, the shell cover 20 cannot rotate reversely relative to the shell 10, and the reliability of connection is ensured.

In some embodiments, referring to fig. 9 and 10, the first clamping portion 31 is a clamping groove, a notch of the clamping groove is disposed towards the housing cover 20, the housing cover 20 is provided with a second elastic portion 23, the second elastic portion 23 is of a cantilever structure, the second clamping portion 22 is a clamping protrusion, the clamping protrusion is connected with the cantilever structure, and the second elastic portion 23 is used for bouncing the clamping protrusion into the clamping groove.

The connection between the clamping protrusion and the cantilever structure can be, but is not limited to, welding, bonding, screw connection, etc., and is not particularly limited herein.

Optionally, the cantilever end of the second elastic portion 23 is provided with a buckle, so that the second elastic portion 23 can be lifted more conveniently, and the clamping protrusion is separated from the clamping groove.

The second elastic part 23 of the shell cover 20 is provided with a clamping protrusion, and when the shell cover 20 rotates relative to the shell 10 and the clamping protrusion moves to the relative position of the clamping groove, the clamping protrusion is sprung into the clamping groove under the action of the elasticity of the second elastic part 23; in the process of opening the case cover 20, the second elastic part 23 can be lifted upwards along the direction away from the connecting piece 30, so that the clamping protrusion falls off the clamping groove, and then the case cover 20 is rotated to open the case cover 20, so that the case cover 20 is covered on the case 10, the reliability of connection can be ensured, and meanwhile, the case cover 20 can be opened conveniently and rapidly.

In some embodiments, the second elastic portion 23 is integrally formed with the housing cover 20, and/or the connecting member 30 is integrally formed with the housing 10.

It is understood that integral molding includes welding, injection molding, and the like.

Therefore, compared with a mode of adopting screw fixation, the number of parts can be simplified, and the installation efficiency can be improved.

According to an embodiment of the present utility model, a sensor is provided, comprising the above-mentioned connection device.

The sensor may be, but is not limited to, a humidity sensor or a temperature sensor, etc.

The housing 10 may be provided with a detection element of the sensor, such as a circuit board, for example, the circuit board is mounted on the connector 30, and the connector 30 may be further provided with a battery, which may be, but not limited to, a button cell.

According to an embodiment of the present utility model, an electrical device is provided, comprising the above-mentioned sensor; or comprise the above-mentioned connecting means.

The powered device may be, but is not limited to, a toy, a temperature sensor, a humidity sensor, a detection device, etc. The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A connection device, comprising:

2. The connecting device according to claim 1, wherein the second clamping portion is a clamping groove, a notch of the clamping groove is arranged towards the connecting piece, a first elastic portion is arranged on one side of the connecting piece towards the shell cover, the first clamping portion is a clamping protrusion, the clamping protrusion is connected with the first elastic portion, and the first elastic portion is used for enabling the clamping protrusion to spring into the clamping groove.

3. The connection device of claim 2, wherein the first resilient portion is a cantilevered structure.

4. The connecting device according to claim 2, wherein the inner surface of the cover is provided with a bevel, the end of the bevel with the largest distance from the upper surface of the cover is a first end, the end with the smallest distance from the upper surface of the cover is a second end, the clamping groove is located at one side of the bevel and is located closer to the second end than the first end, and the bevel is configured as a sliding surface of the clamping protrusion.

5. The connection device according to any one of claims 2 to 4, wherein the cover is provided with a second elastic portion, the second elastic portion is a cantilever structure, at least part of the cantilever structure of the second elastic portion covers the clamping protrusion along the direction of the first axis, and the cantilever structure has a first bending state of bending to one side of the connection member;

6. The connection device of any one of claims 2-4, wherein the first connection portion is a detent projection and the second connection portion is a detent groove; or the first connecting part is a limiting groove, and the second connecting part is a limiting protrusion;

the number of the limiting protrusions and the number of the limiting grooves are multiple, the limiting protrusions and the limiting grooves are arranged at intervals along the circumferential direction of the first axis, each limiting groove is provided with an inlet, the plurality of inlets face the same direction along the circumferential direction of the first axis, and each limiting protrusion is inserted into the limiting groove from the inlet.

7. The connecting device according to claim 1, wherein the first clamping portion is a clamping groove, a notch of the clamping groove is arranged towards the shell cover, the shell cover is provided with a second elastic portion, the second elastic portion is of a cantilever structure, the second clamping portion is a clamping protrusion, the clamping protrusion is connected with the cantilever structure, and the second elastic portion is used for bouncing the clamping protrusion into the clamping groove.

8. The connection device of claim 7, wherein the second resilient portion is integrally formed with the housing cover and/or the connection member is integrally formed with the housing.

9. A sensor comprising a connection device according to any one of claims 1-8.

10. An electrical device comprising the sensor of claim 9; or comprising a connection device according to any one of claims 1-8.