CN219040269U - Self-locking type automobile reading lamp switch - Google Patents

Abstract

The utility model discloses a self-locking automobile reading lamp switch which comprises a base, a pressing latch, a shell and a pressing cover plate, wherein a containing cavity is formed in the base, a public terminal, a normally closed terminal and a normally open terminal are arranged on one side in the containing cavity, a self-locking structure is arranged on the outer side wall of the containing cavity, one end of the pressing latch is inserted into the containing cavity to be abutted against the public terminal, the other end of the pressing latch is connected with a self-locking hook which is matched with the self-locking structure, one end of the shell is connected with the base, and the pressing cover plate is connected with the other end of the shell. The self-locking type automobile reading lamp switch adopts the self-locking mode of the self-locking hook and the self-locking structure, so that the press latch can be better locked when the public terminal is pressed, the contact stability between the public terminal and the normally open terminal is improved, meanwhile, the public terminal, the normally closed terminal and the normally open terminal are arranged on one side in the accommodating cavity, the press latch is inserted into the accommodating cavity to be abutted with the public terminal, side pressing is formed, and the signal switching is smoother through the side pressing mode.

Description

Self-locking type automobile reading lamp switch

Technical Field

The utility model relates to the technical field of switches, in particular to a self-locking type automobile reading lamp switch.

Background

The automobile reading lamp and the self-locking type automobile reading lamp switch are indispensable important parts on an automobile, and the automobile reading lamp is used for providing illumination for passengers when the light in the automobile is insufficient, so that the automobile is convenient to read, and meanwhile, the normal driving of a driver can not be influenced. The self-locking automobile reading lamp switch is used for controlling the on-off of the automobile reading lamp.

At present, the existing self-locking type automobile reading lamp switch has various types and various structural forms, and most of the switches are mechanical switches, and the switches comprise mechanical components such as a shell, a cover plate and the like, and also comprise conductive components and the like arranged inside. When the signal is switched, the common terminal is in contact with the normally open terminal or the normally closed terminal, so that the fault rate of the reading lamp is high, and meanwhile, when the signal is switched, the internal common terminal moves up and down to be switched with the normally open terminal or the normally closed terminal, and when the common terminal moves up and down, the common terminal is easy to be blocked and blocked, so that the signal is not switched smoothly.

Disclosure of Invention

The utility model aims to provide a self-locking type automobile reading lamp switch which has good contact stability and smooth signal switching.

In order to solve the technical problems, the utility model can be realized by adopting the following technical scheme:

a self-locking automotive reading lamp switch comprising:

the base is provided with a containing cavity, one side in the containing cavity is provided with a public terminal, a normally closed terminal and a normally open terminal, and the outer side wall of the containing cavity is provided with a self-locking structure;

the pressing mechanism comprises a pressing mechanism, a holding cavity and a common terminal, wherein one end of the pressing mechanism is inserted into the holding cavity to be abutted against the common terminal, a first reset spring is arranged between the pressing mechanism and the bottom of the holding cavity, the common terminal is switched with the normally closed terminal and the normally open terminal by pressing the pressing mechanism, the other end of the pressing mechanism is connected with a self-locking hook, and the self-locking hook is matched with the self-locking structure;

one end of the shell is connected with the base, and the shell covers the periphery of the base;

and the pressing cover plate is connected with the other end of the shell, and a second reset spring is arranged between the pressing cover plate and the shell.

In one embodiment, the self-locking structure comprises a guide hook block and a guide inclined block, the guide hook block is provided with a hook groove, the self-locking hook slides from one side of the guide hook block and is hooked in the hook groove, the self-locking hook is locked by pressing the hook again, the self-locking hook slides along the inclined plane of the guide inclined block and resets from the other side of the guide hook block, and the pressing hook is unlocked.

In one embodiment, the common terminal is in a bending state, one end of the common terminal is a bending end, two sides of the bending end are respectively provided with a spring part, the middle part of the common terminal is provided with a first movable contact and a second movable contact, the normally closed terminal is provided with a first fixed contact corresponding to the first movable contact, and the normally open terminal is provided with a second fixed contact corresponding to the second movable contact.

In one embodiment, a pressing portion protruding outwards in an inclined mode is arranged on one side of the pressing portion, and the pressing portion abuts against the spring portions on two sides of the bending end.

In one embodiment, the inner side wall of the accommodating cavity is provided with a limit groove, the top of the accommodating cavity is clamped with a limit cover, the side wall of the pressing part is provided with a limit slide block corresponding to the limit groove, and the limit slide block is arranged in the limit groove to limit the pressing part.

In one embodiment, a first buckle is arranged at the edge of the base, a bayonet is formed in the side wall of the bottom of the shell, and the first buckle is buckled into the bayonet to enable the shell to be connected with the base.

In one embodiment, the inner side wall of the top of the shell is provided with a second buckle, the edge of the pressing cover plate is provided with a clamping table, and the second buckle is clamped on the clamping table, so that the pressing cover plate is connected with the shell.

In one embodiment, the top of the shell is also provided with a guide groove.

In one embodiment, the pressing cover plate is provided with guide posts corresponding to the guide grooves.

In one embodiment, the pressing cover plate is provided with a light guide member.

The beneficial effects are that:

1. the contact stability is good; when the pressing mechanism presses the pressing mechanism, the self-locking hook moves downwards from one side of the pressing mechanism and is matched with the self-locking structure on the outer side wall of the accommodating cavity to lock the pressing mechanism, so that the pressing mechanism keeps the pressed state, the pressing mechanism always acts on the public terminal, the contact stability of the public terminal and the normally open terminal is ensured, when the pressing mechanism is pressed again, the self-locking hook resets upwards from the other side, the pressing state of the pressing mechanism is relieved, and finally, the contact stability of the reading lamp switch is better through the self-locking hook and the self-locking structure.

2. Switching is smooth; the common terminal, the normally closed terminal and the normally open terminal are arranged on one side in the accommodating cavity, the pressing part is inserted into the accommodating cavity to be abutted against the common terminal, meanwhile, a first reset spring is arranged at the bottom of the pressing part and the accommodating cavity, and the pressing part is pressed to enable the pressing part to act on the common terminal, so that the common terminal is switched and conducted with the normally closed terminal and the normally open terminal, and a side pressure mode is adopted, so that the signal can be smoothly switched and conducted.

Drawings

FIG. 1 is an exploded schematic view of a self-locking automotive reading light switch of the present utility model;

FIG. 2 is a schematic diagram of a self-locking automotive reading lamp switch according to the present utility model;

FIG. 3 is a cross-sectional view of the self-locking automotive reading lamp switch of the present utility model;

FIG. 4 is a schematic diagram of the unlocking state of the self-locking automobile reading lamp switch of the utility model;

FIG. 5 is a schematic diagram showing the locked state of the self-locking automobile reading lamp switch of the utility model;

FIG. 6 is a schematic diagram of the common, normally closed and normally open terminals of the self-locking automotive reading lamp switch of the present utility model;

FIG. 7 is a schematic diagram of a detent structure of the self-locking automobile reading lamp switch of the utility model;

FIG. 8 is a schematic view of the base structure of the self-locking automobile reading lamp switch of the utility model;

fig. 9 is a schematic diagram of a shell structure of a self-locking type automobile reading lamp switch according to the present utility model

Fig. 10 is a schematic diagram of a pressing cover plate of the self-locking type automobile reading lamp switch of the utility model.

As shown in the accompanying drawings:

100. a base; 110. a receiving chamber; 120. a common terminal; 130. a normally closed terminal; 140. a normally open terminal; 150. a first buckle;

200. a self-locking structure; 210. a guide hook block; 211. a hook groove; 220. a guide sloping block;

300. pressing the pin; 310. a pressing part; 320. a limit sliding block;

400. a first return spring;

500. self-locking hook;

600. a housing; 610. a bayonet; 620. a second buckle; 630. a guide groove;

700. pressing the cover plate; 710. a clamping table; 720. a guide post;

800. a second return spring;

900. a light guide.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a self-locking type automobile reading lamp switch includes:

the base 100 is provided with a containing cavity 110, one side in the containing cavity 110 is provided with a common terminal 120, a normally closed terminal 130 and a normally open terminal 140, and the outer side wall of the containing cavity 110 is provided with a self-locking structure 200;

the pressing device comprises a pressing device 300, wherein one end of the pressing device 300 is inserted into a containing cavity 110 to be abutted against a public terminal 120, a first reset spring 400 is arranged between the pressing device 300 and the bottom of the containing cavity 110, the pressing device 300 is pressed to enable the public terminal 120 to be switched with a normally closed terminal 130 and a normally open terminal 140, the other end of the pressing device 300 is connected with a self-locking hook 500, and the self-locking hook 500 is matched with the self-locking structure 200;

one end of the shell 600 is connected with the base 100, and the shell 600 covers the periphery of the base 100;

and a pressing cover 700, the pressing cover 700 being connected to the other end of the case 600, and a second return spring 800 being provided between the pressing cover 700 and the case 600.

Specifically, in this embodiment, when the reading light switch is switched, the user presses the pressing cover plate 700, so that the pressing cover plate 700 acts on the pressing latch 300, the pressing latch 300 moves downward, during the moving process, the pressing latch 300 presses the common terminal 120 disposed on one side of the accommodating cavity 110, so that the common terminal 120 is disconnected from the normally closed terminal 130 and contacts with the normally open terminal 140, thereby realizing signal switching, and simultaneously, during the downward moving process of the pressing latch 300, the self-locking hook 500 connected with the pressing latch 300 moves downward and slides from one side of the self-locking structure 200, and cooperates with the self-locking structure 200, so that the self-locking hook 500 is hooked and locked, thereby enabling the pressing latch 300 to be locked after being pressed, and the pressing cover plate 700 is reset under the action of the second reset spring 800.

When the pressing cover plate 700 is pressed again, the pressing cover plate 700 acts on the pressing pawl 300 again, the pressing pawl 300 moves downwards, at the moment, the self-locking hook 500 slides from the other side of the self-locking structure 200 and is separated from the self-locking structure 200, the pressing pawl 300 moves upwards to reset through the elastic force of the first reset spring 400, the pressing pawl 300 does not press the public terminal 120 when resetting, the public terminal 120 is reset as well, the pressing pawl is disconnected with the normally open terminal 140 and is contacted with the normally closed terminal 130, signal switching is realized again, finally, the switching between the public terminal 120 and the normally closed terminal 130 and the normally open terminal 140 is smooth through a side pressing mode, and meanwhile, the self-locking hook 500 and the self-locking structure 200 are adopted, so that the pressing pawl 300 is better locked when the public terminal 120 is pressed, and the contact stability between the public terminal 120 and the normally open terminal 140 is improved.

Referring to fig. 4 and 5, in order to lock and unlock the pressing latch 300, the self-locking structure 200 in this embodiment includes a guide hook block 210 and a guide inclined block 220, and the guide hook block 210 is provided with a hook slot 211, presses the pressing latch 300, and the self-locking hook 500 slides from one side of the guide hook block 210 and hooks the hook slot 211, presses the pressing latch 300 again, and slides along the inclined surface of the guide inclined block 220 and resets from the other side of the guide hook block 210.

When the pressing cover plate 700 is pressed, the self-locking hook 500 is driven to move downwards when the pressing cover plate 300 is moved downwards, the self-locking hook 500 firstly touches the guide hook block 210 and slides downwards along one side of the guide hook block 210, when the self-locking hook 500 slides to the bottom of the guide hook block 210, the pressing cover plate 300 is released, and the pressing cover plate 700 moves upwards under the action of the first reset spring 400, so that the self-locking hook 500 hooks on the hook groove 211, thereby locking the pressing cover plate 300, keeping the pressing state of the pressing cover plate 300 on the common terminal 120, stabilizing the contact between the common terminal 120 and the normally open terminal 140, and resetting the pressing cover plate 700 upwards under the action of the second reset spring 800.

When the pressing cover plate 700 is pressed again and the pressing catch 300 is moved downwards, the self-locking hook 500 is moved downwards at the moment and slides along the inclined plane of the guide inclined block 220, then the pressing cover plate 700 is released, the pressing catch 300 moves upwards along the other side of the guide hook block 210 to reset, so that the pressing self-locking is formed, the unlocking is performed, finally, the self-locking function of the pressing catch 300 is realized through the self-locking hook 500, the guide hook block 210 and the guide inclined block 220, the self-locking effect is good, and the contact stability of the reading lamp switch can be improved.

Referring to fig. 6 and 7, in order to ensure smooth signal switching and good contact stability, the common terminal 120 in the embodiment is in a bent state, one end of the common terminal is a bent end, two sides of the bent end are respectively provided with a spring portion 121, a middle portion of the bent end is provided with a first movable contact 122 and a second movable contact 123, the normally closed terminal 130 is provided with a first fixed contact 131 corresponding to the first movable contact 122, and the normally open terminal 140 is provided with a second fixed contact 141 corresponding to the second movable contact 123.

In the initial state, the first movable contact 122 of the common terminal 120 keeps contact with the first stationary contact 131 of the normally closed terminal 130, when the pressing cover plate 700 presses the pressing cover 300, the pressing cover 300 moves downwards, at this time, one side of the pressing cover 300 acts on the pressing part 121 at the bending end to press the pressing part 121, so that the first movable contact 122 is separated from the first stationary contact 131, meanwhile, the second movable contact 123 is contacted with the second stationary contact 141, when the pressing cover plate 700 is released, the pressing cover 300 moves upwards to reset under the action of the first reset spring 400 and is separated from the pressing part 121 of the common terminal 120, the bending end of the common terminal 120 resets, so that the second movable contact 123 is separated from the second stationary contact 141, the first movable contact 122 is contacted with the first stationary contact 131 again, finally, the switching of signals is realized, and the contact stability of the signals is better when the signals are switched.

Of course, in order to facilitate the pressing and smooth switching of the pressing portion 121 of the common terminal 120, a pressing portion 310 protruding obliquely outward is provided at one side of the pressing portion 300, and the pressing portion 310 is brought into contact with the pressing portion 121 at both sides of the bent end, and the pressing portion 310 presses the pressing portion 121, so that the signal switching between the common terminal 120 and the normally closed terminal 130 and the normally open terminal 140 is facilitated and smoothed.

Referring to fig. 7 and 8, in order to ensure reasonable structural design of the reading lamp switch, in this embodiment, a limit groove 111 is formed in an inner side wall of the accommodating cavity 110, a limit cover 112 is clamped at the top, and meanwhile, a limit slider 320 corresponding to the limit groove 111 is disposed on a side wall of the pressing pin 300, and the limit slider 320 is disposed in the limit groove 111 to limit the pressing pin 300.

When assembling the pressing die 300, the first reset spring 400 is placed in the accommodating cavity 110, then the pressing die 300 is inserted from the top of the accommodating cavity 110, two ends of the first reset spring 400 are respectively abutted against the pressing die 300 and the bottom of the accommodating cavity 110, when the pressing die 300 is inserted, the limit slider 320 on the side wall of the first reset spring is inserted into the limit groove 111 on the inner wall of the accommodating cavity 110, then the limit cover 112 is clamped at the top of the accommodating cavity 110, and the pressing die 300 is limited through the limit groove 111 and the limit cover 112, so that the pressing die 300 is smooth when being pressed and reset, and is not separated from the accommodating cavity 110 when being reset, and finally, the structural design of the reading lamp switch is reasonable.

Referring to fig. 8 to 10, in order to facilitate assembling the reading lamp switch, a first buckle 150 is provided at an edge of the base 100, a bayonet 610 is provided on a bottom side wall of the housing 600, the first buckle 150 is buckled into the bayonet 610 to connect the housing 600 with the base 100, meanwhile, a second buckle 620 is provided on an inner side wall of a top of the housing 600, a clamping table 710 is provided at an edge of the pressing cover 700, the second buckle 620 is clamped on the clamping table 710 to connect the pressing cover 700 with the housing 600, and finally, assembling between the base 100 and the housing 600 is facilitated through the first buckle 150 and the bayonet 610, and assembling between the pressing cover 700 and the housing 600 is facilitated through the second buckle 620 and the clamping table 710.

Referring to fig. 9 and 10, when the signal of the reading lamp switch is switched, the pressing cover 700 needs to be pressed, and in order to realize the pressing of the pressing cover 700, in this embodiment, a guiding groove 630 is further provided at the top of the housing 600, and at the same time, a guiding post 720 corresponding to the guiding groove 630 is provided at the pressing cover 700.

When the pressing cover plate 700 is assembled with the casing 600, the guide post 720 of the pressing cover plate 700 is placed in the guide groove 630 of the casing 600, when the pressing cover plate 700 is pressed, the guide post 720 can slide downwards in the guide groove 630, and when the pressing cover plate 700 is released, the pressing cover plate 700 is reset under the action of the second reset spring 800, so that the pressing cover plate 700 can be reasonably pressed, and signal switching of a reading lamp switch is realized.

Referring to fig. 1 or 2, since the reading light switch is installed inside the automobile, the light is darker, and when the user needs to switch the reading light switch, the user can directly find the reading light switch for convenience, therefore, the light guide 900 is arranged on the pressing cover plate 700, and the user can conveniently find the position of the reading light switch through the light guide 900, so that the user can conveniently press and switch the reading light switch.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. Those skilled in the art can practice the utility model smoothly as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims (10)

1. A self-locking automotive reading lamp switch, comprising:

the base is provided with a containing cavity, one side in the containing cavity is provided with a public terminal, a normally closed terminal and a normally open terminal, and the outer side wall of the containing cavity is provided with a self-locking structure;

the pressing mechanism comprises a pressing mechanism, a holding cavity and a common terminal, wherein one end of the pressing mechanism is inserted into the holding cavity to be abutted against the common terminal, a first reset spring is arranged between the pressing mechanism and the bottom of the holding cavity, the common terminal is switched with the normally closed terminal and the normally open terminal by pressing the pressing mechanism, the other end of the pressing mechanism is connected with a self-locking hook, and the self-locking hook is matched with the self-locking structure;

one end of the shell is connected with the base, and the shell covers the periphery of the base;

and the pressing cover plate is connected with the other end of the shell, and a second reset spring is arranged between the pressing cover plate and the shell.

2. The self-locking automotive reading light switch of claim 1, wherein: the self-locking structure comprises a guide hook block and a guide inclined block, the guide hook block is provided with a hook groove, the self-locking hook is pressed to slide from one side of the guide hook block and is hooked in the hook groove, the pressing hook is locked, the self-locking hook is pressed again to slide along the inclined plane of the guide inclined block, and the self-locking hook is reset from the other side of the guide hook block to unlock the pressing hook.

3. The self-locking automotive reading light switch of claim 1, wherein: the common terminal is in a bending state, one end of the common terminal is a bending end, two sides of the bending end are respectively provided with a spring part, the middle part of the common terminal is provided with a first movable contact and a second movable contact, the normally closed terminal is provided with a first fixed contact corresponding to the first movable contact, and the normally open terminal is provided with a second fixed contact corresponding to the second movable contact.

4. A self-locking automotive reading light switch as defined in claim 3, wherein: one side of the pressing part is provided with a pressing part protruding outwards in an inclined mode, and the pressing part is abutted with the spring pressing parts at two sides of the bending end.

5. The self-locking automotive reading light switch of claim 1, wherein: the limiting groove is formed in the inner side wall of the accommodating cavity, the top of the accommodating cavity is connected with the limiting cover in a clamping mode, the limiting sliding block corresponding to the limiting groove is arranged on the side wall of the pressing portion, the limiting sliding block is arranged in the limiting groove, and the pressing portion is limited.

6. The self-locking automotive reading light switch of claim 1, wherein: the edge of the base is provided with a first buckle, the side wall of the bottom of the shell is provided with a bayonet, and the first buckle is buckled into the bayonet, so that the shell is connected with the base.

7. The self-locking automotive reading light switch of claim 1, wherein: the inside wall at casing top is equipped with the second buckle, presses the edge of apron and then is equipped with the block, with second buckle card on the block, makes to press apron and casing connection.

8. The self-locking automotive reading light switch of claim 1, wherein: the top of the shell is also provided with a guide groove.

9. The self-locking automotive reading light switch of claim 8, wherein: the pressing cover plate is provided with a guide post corresponding to the guide groove.

10. The self-locking automotive reading light switch of claim 1, wherein: the pressing cover plate is provided with a light guide piece.

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