CN220774782U

CN220774782U - Conductive structure and smoke detector

Info

Publication number: CN220774782U
Application number: CN202322416829.7U
Authority: CN
Inventors: 王经国; 谢能斌
Original assignee: Guangjiao'ao Shanghai Intelligent Technology Co ltd
Current assignee: Guangjiao'ao Shanghai Intelligent Technology Co ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-04-12
Anticipated expiration: 2033-09-06

Abstract

The utility model belongs to the technical field of detectors, and discloses a conductive structure and a smoke detector. The conductive structure is arranged on the smoke detector and comprises a first circuit board, a second circuit board and a conductive assembly, and the first circuit board is arranged on the lower cover; the second circuit board is arranged on the upper cover, the upper cover can be buckled with the lower cover so that the first circuit board and the second circuit board are connected through the conductive component, the conductive component comprises a fixing piece, an elastic piece and a conductive piece, and the fixing piece is arranged on one of the first circuit board and the second circuit board; the elastic piece and the guide piece are coaxially arranged on the other of the first circuit board and the second circuit board, and the elastic piece can stretch along the guide piece; the elastic piece is abutted against the fixing piece so as to enable the first circuit board to be connected with the second circuit board. This conductive structure and smoke detector can improve the electric connection speed, and is difficult for being damaged, and life is longer.

Description

Conductive structure and smoke detector

Technical Field

The utility model relates to the technical field of detectors, in particular to a conductive structure and a smoke detector.

Background

The smoke detector is internally provided with more circuit elements which are integrated on two circuit boards (or directly soldered and installed or connected by wires) for reasonably distributing the positions of the circuit elements, and because the power supply piece is generally installed on one side, the two circuit boards are electrically connected, and because the circuit elements are more, the two circuit boards are arranged at intervals, more wires are required to be connected, the welding speed is low, the wires are more disordered, and when the upper cover and the lower cover of the detector are buckled, the wires are easy to run out, so that the wires are clamped, the circuits are not enabled, and the smoke detector cannot be continuously used.

Therefore, there is a need to design a conductive structure and a smoke detector to solve the above problems.

Disclosure of Invention

An object of the present utility model is to provide a conductive structure, which can improve the electrical connection speed, is not easy to be damaged, and has a longer service life.

Another object of the present utility model is to provide a smoke detector that is faster to install and longer to use.

To achieve the purpose, the utility model adopts the following technical scheme:

conductive structure installs in smoke detector, includes:

the first circuit board is arranged on the lower cover;

the second circuit board is installed in the upper cover, and above-mentioned upper cover can be with above-mentioned lower cover lock in order to make above-mentioned first circuit board and above-mentioned second circuit board pass through conductive component and connect, and above-mentioned conductive component includes:

a fixing member mounted on one of the first circuit board and the second circuit board;

an elastic member and a guide member coaxially mounted on the other of the first circuit board and the second circuit board, the elastic member being retractable along the guide member;

the elastic piece is abutted against the fixing piece so as to connect the first circuit board and the second circuit board.

As an alternative scheme, the fixing piece is provided with a containing groove, and the free end of the elastic piece is in plug-in fit with the containing groove.

As an alternative, the elastic member includes:

an elastic part, one end of which is installed on the other of the first circuit board and the second circuit board;

the conductive block is arranged at the other end of the elastic part and is in plug-in fit with the accommodating groove.

As an alternative scheme, the conductive block is columnar, an anti-rotation convex part is convexly arranged on the circumference of the conductive block, a limiting groove is formed in the groove wall of the accommodating groove, and the anti-rotation convex part can be inserted into and limited in the limiting groove.

As an alternative scheme, the above-mentioned anti-rotation convex parts are provided with at least two, at least two above-mentioned anti-rotation convex parts are evenly distributed along the circumference of the above-mentioned conductive block, and the above-mentioned spacing groove and above-mentioned anti-rotation convex parts are set up in one-to-one correspondence.

As an alternative, the guide member encloses at least part of the elastic member; or (b)

The elastic piece is sleeved outside the guide piece.

As an alternative, the guide member is made of an insulating material.

As an alternative, the conductive member is provided in plurality.

As an alternative, a first mounting seat is disposed between the elastic member and the corresponding circuit board, and a second mounting seat is disposed between the fixing member and the corresponding circuit board.

The smoke detector comprises a conductive structure, an upper cover and a lower cover, wherein the upper cover is connected with the lower cover in a buckled mode.

The utility model has the beneficial effects that:

the utility model provides a conductive structure, wherein a conductive component is arranged between a first circuit board and a second circuit board, in the conductive component, an elastic piece can be abutted against a fixing piece in the process of buckling an upper cover and a lower cover, a certain elastic force is provided to enable the elastic piece to keep an abutting state with the fixing piece all the time, and through the arrangement of a guide piece, the elastic piece is ensured not to deviate in the compression process, and further the elastic piece is ensured to accurately abut against the fixing piece.

The utility model also provides a smoke detector, which has the advantages of higher installation speed and longer service life by adopting the conductive structure.

Drawings

FIG. 1 is an exploded view of a smoke detector provided in an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a second circuit board and a conductive assembly according to an embodiment of the present utility model;

fig. 3 is an exploded view of a conductive assembly provided in an embodiment of the present utility model.

In the figure:

10. a first circuit board;

20. a conductive assembly; 21. a fixing member; 211. a receiving groove; 212. a limit groove; 22. an elastic member; 221. an elastic part; 222. a conductive block; 2221. an anti-rotation protrusion; 23. a guide member; 24. a first mount; 25. a second mounting base;

30. a second circuit board;

200. an upper cover; 300. and a lower cover.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

This embodiment provides a smoke detector, as shown in fig. 1, the smoke detector includes upper cover 200 and lower cover 300, upper cover 200 and lower cover 300 lock are connected, the inside circuit component that has more of smoke detector, these circuit component are integrated through two circuit boards respectively through the circuit component of upper and lower both sides, because circuit component is more, two circuit boards interval sets up, need more electric wires to connect, the welding speed is slow, and the electric wire is comparatively disordered, and when upper cover 200 and lower cover 300 lock of detector, the electric wire is easy to come out, cause the electric wire to be pressed from both sides, lead to the circuit to be obstructed, unable use continuously.

In order to solve the above-mentioned problems, the present embodiment provides a conductive structure, which is applied to a smoke detector, can improve the electrical connection speed, is not easy to be damaged, and has a longer service life. As shown in fig. 1 and 2, the conductive structure includes a first circuit board 10, a second circuit board 30, and a conductive assembly 20, the first circuit board 10 being mounted to a lower cover 300; the second circuit board 30 is mounted on the upper cover 200, the upper cover 200 can be buckled with the lower cover 300 to connect the first circuit board 10 and the second circuit board 30 through the conductive assembly 20, wherein the conductive assembly 20 comprises a fixing piece 21, an elastic piece 22 and a guide piece 23, and the fixing piece 21 is mounted on one of the first circuit board 10 and the second circuit board 30; the elastic member 22 and the guide member 23 are coaxially installed on the other of the first circuit board 10 and the second circuit board 30, and the elastic member 22 is retractable along the guide member 23; the elastic member 22 abuts against the fixing member 21 to connect the first circuit board 10 and the second circuit board 30.

The conductive structure is characterized in that the conductive component 20 is arranged between the first circuit board 10 and the second circuit board 30, the elastic piece 22 in the conductive component 20 can be abutted against the fixing piece 21 in the buckling process of the upper cover 200 and the lower cover 300, a certain elastic force is provided to enable the elastic piece 22 to keep a tight abutting state with the fixing piece 21 all the time, and through the arrangement of the guide piece 23, the elastic piece 22 is ensured not to deviate in the compression process, and further the elastic piece 22 is ensured to accurately abut against the fixing piece 21.

In the present embodiment, the fixing member 21 is mounted on the first circuit board 10, and the elastic member 22 is mounted on the second circuit board 30 for illustration. In other embodiments, the fixing member 21 may be mounted on the second circuit board 30, and the elastic member 22 is mounted on the first circuit board 10, which will not be described in detail later.

Optionally, a first mounting seat 24 is disposed between the elastic member 22 and the second circuit board 30, and a second mounting seat 25 is disposed between the fixing member 21 and the first circuit board 10. Through the arrangement, the problems that a plurality of parts are welded on the circuit board to damage the circuit board or the circuit board is deformed due to welding can be avoided.

Alternatively, in one embodiment, as shown in fig. 2, the elastic member 22 is a block having a telescopic property, and the guide member 23 is located at the outer periphery of the elastic member 22 to limit the elastic member 22.

In another embodiment, as shown in fig. 3, the elastic member 22 includes an elastic portion 221, the elastic portion 221 is mounted on the first mounting seat 24, and the elastic portion 221 is a spring, at this time, the spring is sleeved on the outer periphery of the guide member 23, so that the guide member 23 limits the spring in the process of compressing the spring, and prevents the spring from deforming. Of course, in the case where the hardness of the spring is large, the guide 23 may be formed around the outer periphery of the spring.

The length of the guide member 23 is smaller than the length of the elastic member 22, and the elastic member 22 does not interfere with the fixing member 21 after being compressed.

Alternatively, the guide member 23 is made of an insulating material, and the guide member 23 may be a ceramic member, a quartz member, or the like, for example, which is a high temperature resistant material, preventing the elastic part 221 or the elastic member 22 from melting due to heat released when conducting electricity.

Preferably, with continued reference to fig. 3, the fixing member 21 is provided with a receiving groove 211, and the free end of the elastic member 22 is in plug-in fit with the receiving groove 211. Through the arrangement, the elastic piece 22 can be ensured to be stably inserted and limited in the fixing piece 21, the elastic piece 22 is prevented from being separated, and the stability of electric connection is further ensured.

Preferably, as shown in fig. 3, the elastic member 22 further includes a conductive block 222, the conductive block 222 is mounted at the other end of the elastic portion 221, and the conductive block 222 is in plug-in fit with the accommodating groove 211. By the arrangement, the contact area between the free end of the elastic piece 22 and the fixing piece 21 is increased, and the resistance is reduced.

Further, as shown in fig. 3, the conductive block 222 is cylindrical, the conductive block 222 is circumferentially provided with an anti-rotation protrusion 2221, the groove wall of the accommodating groove 211 is provided with a limit groove 212, and the anti-rotation protrusion 2221 can be inserted into and limited by the limit groove 212. Through the arrangement, the stability of the conductive block 222 when being abutted in the fixing piece 21 is further improved, namely, the accommodating groove 211 plays a role in preventing falling, the limiting groove 212 plays a role in preventing rotation, so that the conductive block 222 is fixed in the fixing piece 21, and further, when the conductive block 222 is subjected to external force or vibration, tiny movement occurs to cause the electrical connection to be connected in a virtual mode, the electrical connection is unstable, and then the smoke detector is in failure.

The limiting groove 212 may be an opening at one end or a through groove, which is not limited herein. That is, the fixing member 21 may be formed by two semi-ring structures disposed opposite to each other.

Preferably, the free end of the conductive block 222 is provided with a guiding slope, which can play a guiding role when being inserted into the accommodating groove 211, so that the plugging precision of the conductive block 222 is reduced, and the plugging speed is improved.

In another embodiment, the ends of the conductive blocks 222 may also be hemispherical, not limited herein.

Preferably, the anti-rotation protruding parts 2221 are provided with at least two, at least two anti-rotation protruding parts 2221 are uniformly distributed along the circumferential direction of the conductive block 222, and the limit grooves 212 are arranged in one-to-one correspondence with the anti-rotation protruding parts 2221, so that the anti-rotation force is increased, and meanwhile, the stress on two sides of the conductive block 222 is balanced, and the conductive block 222 is prevented from rolling.

Preferably, the conductive member 20 is provided in plurality. Can accommodate the electrical connection of multiple circuit elements.

The smoke detector of the embodiment improves the installation speed and has longer service life by adopting the conductive structure.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Conductive structure installs in smoke detector, its characterized in that, conductive structure includes:

a first circuit board (10) mounted on the lower cover (300);

the second circuit board (30), install in upper cover (200), upper cover (200) can with lower cover (300) lock is so that first circuit board (10) with second circuit board (30) are connected through conductive subassembly (20), conductive subassembly (20) include:

a fixing member (21) mounted on one of the first circuit board (10) and the second circuit board (30);

an elastic member (22) and a guide member (23) coaxially mounted on the other of the first circuit board (10) and the second circuit board (30), the elastic member (22) being retractable along the guide member (23);

the elastic piece (22) is abutted against the fixing piece (21) so as to enable the first circuit board (10) to be connected with the second circuit board (30).

2. The conductive structure according to claim 1, wherein the fixing member (21) is provided with a receiving groove (211), and the free end of the elastic member (22) is in plug-in fit with the receiving groove (211).

3. The electrically conductive structure according to claim 2, characterized in that the elastic element (22) comprises:

an elastic portion (221) having one end mounted on the other of the first circuit board (10) and the second circuit board (30);

and the conductive block (222) is arranged at the other end of the elastic part (221), and the conductive block (222) is in plug-in fit with the accommodating groove (211).

4. A conductive structure according to claim 3, wherein the conductive block (222) is columnar, an anti-rotation protrusion (2221) is protruding upwards in the circumferential direction of the conductive block (222), a limit groove (212) is formed in the groove wall of the accommodating groove (211), and the anti-rotation protrusion (2221) can be inserted into and limited in the limit groove (212).

5. The conductive structure according to claim 4, wherein at least two anti-rotation protrusions (2221) are provided, at least two anti-rotation protrusions (2221) are uniformly distributed along the circumferential direction of the conductive block (222), and the limit grooves (212) are provided in one-to-one correspondence with the anti-rotation protrusions (2221).

6. The electrically conductive structure according to any one of claims 1 to 5, characterized in that the guide member (23) encloses at least part of the elastic member (22); or (b)

The elastic piece (22) is sleeved outside the guide piece (23).

7. The electrically conductive structure according to any one of claims 1 to 5, characterized in that the guide (23) is made of an insulating material.

8. The electrically conductive structure according to any one of claims 1-5, wherein the electrically conductive component (20) is provided with a plurality.

9. The electrically conductive structure according to any one of claims 1 to 5, characterized in that a first mounting seat (24) is provided between the elastic member (22) and the corresponding circuit board, and a second mounting seat (25) is provided between the fixing member (21) and the corresponding circuit board.

10. Smoke detector, characterized in that it comprises an electrically conductive structure according to any one of claims 1-9, an upper cover (200) and a lower cover (300), said upper cover (200) being snap-connected to said lower cover (300).