CN114824902A

CN114824902A - Power socket

Info

Publication number: CN114824902A
Application number: CN202210414631.2A
Authority: CN
Inventors: 周招会; 吴步存
Original assignee: Daming Electronic Co ltd
Current assignee: Daming Electronic Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-07-29
Anticipated expiration: 2042-04-15
Also published as: CN114824902B

Abstract

The invention discloses a power socket which comprises a metal shell, a first plastic shell and a second plastic shell, wherein a first metal terminal and a second metal terminal penetrate through the lower end of the metal shell, and the first metal terminal and the second metal terminal downwards extend into the second plastic shell; the clamping device is characterized by further comprising a first clamping mechanism and a second clamping mechanism, the metal shell and the first plastic shell are fixed through the first clamping mechanism, and the metal shell and the second plastic shell are fixed through the second clamping mechanism. A cooling mechanism is also arranged. The first clamping mechanism and the second clamping mechanism are added, so that the stability of installation of the metal shell and the first plastic shell and the second plastic shell can be realized; meanwhile, the cooling mechanism is arranged in the second plastic shell, so that the electric pair accessories can be ejected out when the second plastic shell is used at an overtemperature, and meanwhile, the air bag blows air into the metal shell, so that the cooling effect is improved. The metal shell cooling structure is strong in structural design and installation firmness, safer in electricity utilization, and capable of improving the cooling effect of the metal shell.

Description

Power socket

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a power socket.

Background

The power socket is an important power supply part in a vehicle, and may be used for a cigarette lighter, and meanwhile, the cigarette lighter socket is generally used as a socket for other devices (such as a vacuum cleaner, an air compressor, a fan, a notebook computer, a mobile phone, etc.).

In the power socket in the prior art, the connection between the metal shell inside the power socket and the plastic shell outside the power socket is not tight enough, so that the power socket is loosened and shaken in the use process, and the installation stability is poor. Meanwhile, when the existing cigarette lighter is popped up due to overheating, the existing cigarette lighter cannot be actively cooled by combining the bimetallic strip, so that the damage due to overheating is easily caused.

Therefore, how to provide a novel power socket to improve the installation stability and the operation stability is a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

Therefore, the invention provides a power socket to solve the related technical problems in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

a power socket comprises a metal shell, a first plastic shell sleeved on the upper portion of the metal shell, and a second plastic shell fixed at the lower end of the metal shell, wherein a first metal terminal and a second metal terminal penetrate through the lower end of the metal shell and extend downwards into the second plastic shell; still include first latch mechanism and second latch mechanism, pass through between metal casing and the first plastic casing first latch mechanism is fixed, pass through between metal casing and the second plastic casing second latch mechanism is fixed.

Furthermore, the lower end of the metal shell is provided with a mounting groove, and the upper end of the second plastic shell extends into and is fixed in the mounting groove; the first metal terminal is fixed with the second plastic shell through injection molding, the upper end of the first metal terminal is fixed at the upper end of the second plastic shell, and the lower end of the first metal terminal penetrates into the second plastic shell; the upper end of the second metal terminal is riveted with the lower end of the metal shell, and the lower end of the second metal terminal penetrates into the second plastic shell.

The metal shell is provided with a mounting groove, and the mounting groove is internally provided with a mounting hole; the first metal terminal upper end is arranged in the polygonal limiting part, the second metal terminal upper end is arranged outside the polygonal limiting part gap, and the first metal terminal lower end and the second metal terminal lower end extend into the second plastic shell from the polygonal limiting part gap.

Furthermore, a vent hole is formed in the middle of the upper end of the first metal terminal, a polygonal hole is formed in the second plastic shell in contact with the upper end of the first metal terminal, the vent hole is opposite to the polygonal hole, and the inner cavity of the metal shell is communicated with the inner cavity of the second plastic shell through the vent hole and the polygonal hole.

Furthermore, first latch mechanism is including offering at least 1 locking hole group on the metal casing, be equipped with on the first plastic casing with locking protruding that the locking hole group is paired.

Furthermore, the locking hole group comprises a first positioning through hole and a second positioning through hole, and the first positioning through hole and the second positioning through hole are arranged in a staggered mode.

Further, the second clamping mechanism is including seting up at least 1 joint hole on the second plastic casing, be equipped with on the metal casing with the checkpost that the joint hole pairs.

Further, still include cooling mechanism, cooling mechanism locates in the second plastic casing, just cooling mechanism passes through the intercommunicating pore with the metal casing inner chamber intercommunication.

Further, the cooling mechanism comprises a supporting plate, an air bag, a bimetallic strip, a jacking pipe, a ceramic heat-insulating strip and a slide way, wherein the supporting plate is fixed in the second plastic shell, the air bag is fixedly arranged at the upper end of the supporting plate, the ceramic heat-insulating strip is arranged at the upper end of the air bag, the bimetallic strip which bends upwards is arranged at the upper end of the ceramic heat-insulating strip, the jacking pipe communicated with the air bag is fixed at the middle part of the bimetallic strip which bends upwards, the jacking pipe penetrates upwards into the communicating hole, two ends of the bimetallic strip slide in the slide way, and the slide way is arranged on two sides of the polygonal hole.

Further, the plastic shell comprises an upper cover, the upper cover is covered at the upper end of the metal shell, and the upper cover is hinged to the upper end of the first plastic shell through an elastic sawtooth pin.

The invention has the following advantages:

according to the power socket, the structure of the existing power socket is improved, the first clamping mechanism and the second clamping mechanism are added, and the stability of installation of the metal shell and the first plastic shell and the second plastic shell can be realized; simultaneously, through the improvement to first metal terminal and second metal terminal mounting structure and set up cooling mechanism in the second plastic housing, can be when using the overtemperature ejecting with the electricity to the accessory, blow in the metal housing through the gasbag simultaneously, improve the cooling effect. The metal shell cooling structure is strong in structural design and installation firmness, safer in electricity utilization, and capable of improving the cooling effect of the metal shell.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a schematic structural diagram of a power socket according to an embodiment of the present invention;

fig. 2 is a disassembled schematic view of a power socket according to an embodiment of the present invention;

FIG. 3 is a bottom view of an electrical outlet according to an embodiment of the present invention;

FIG. 4 is a perspective view of a metal shell provided in accordance with an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a power outlet at a first angle in accordance with an embodiment of the present invention;

FIG. 6 is a cross-sectional view of an electrical outlet at a second angle in accordance with an embodiment of the present invention;

FIG. 7 is a partial cross-sectional view of a cooling mechanism within a second plastic housing according to another embodiment of the present invention;

FIG. 8 is a schematic view of the construction of the flexible serrated pin of the present invention;

in the figure:

1 a metal housing; 2 a first plastic housing; 3 a second plastic housing; 4 a first metal terminal; 5 a second metal terminal; 6 a first clamping mechanism; 601 a first positioning through hole; 602 a second positioning via; 603 a locking projection; 7, a second clamping mechanism; 701 clamping holes; 702 a clip; 8, installing a groove; 9 a polygonal limiting member; 10 air holes; 11 a polygonal hole; 12 a temperature reduction mechanism; 121 a support plate; 122 air bag; 123 bimetal strips; 124, jacking pipes; 125 ceramic heat insulating sheets; 126 a slide way; 13, covering the upper cover; 14 resilient serrated pins.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to solve the related technical problem that exists among the prior art, this application embodiment provides a supply socket, aims at improving stability, the power consumption security and the effect of cooling down certainly of supply socket installation. Based on the above purpose, the embodiment of the present application improves the power socket in the prior art, and specifically, the following steps are performed:

the embodiment of the application comprises a metal shell 1, and further comprises a first plastic shell 2 sleeved on the upper part of the metal shell 1 and a second plastic shell 3 fixed at the lower end of the metal shell 1, as shown in fig. 1-3. Still include first latch mechanism 6 and second latch mechanism 7, it is fixed through first latch mechanism 6 between metal casing 1 and the first plastic casing 2, it is fixed through second latch mechanism 7 between metal casing 1 and the second plastic casing 3. Thereby realizing the fastening connection installation of the metal shell 1 and the first plastic shell 2 and the second plastic shell 3.

Based on the above structure, specifically, the first latch mechanism 6 includes at least 1 locking hole set provided on the metal housing 1, and the first plastic housing 2 is provided with a locking protrusion 603 paired with the locking hole set. As shown in fig. 1 and 2, the lock hole group of the first latch mechanism 6 of the embodiment of the present application is provided with 2 groups, which can improve the stability of the connection between the metal housing 1 and the first plastic housing 2. Of course, multiple sets of locking hole groups can be arranged according to the size and the installation requirement of the power socket, and meanwhile, the locking holes can be installed in a symmetrical arrangement mode.

In the embodiment of the present application, as shown in fig. 2, the locking hole set includes a first positioning through hole 601 and a second positioning through hole 602, and the first positioning through hole 601 and the second positioning through hole 602 are disposed vertically and are closer to each other. In order to improve the locking effect and prevent the random sliding and the falling off, the first positioning through holes 601 and the second positioning through holes 602 are arranged in a staggered manner, and the structure and the position of the locking protrusion 603 are designed correspondingly. In this embodiment, the size and shape of the first positioning through-hole 601 and the second positioning through-hole 602 may be set to be the same or different.

In order to realize the fastening connection between the metal casing 1 and the second plastic casing 3, the second latch mechanism 7 includes at least 1 latch hole 701 provided on the second plastic casing 3, and the metal casing 1 is provided with a clip 702 paired with the latch hole 701. Similarly, the number of the arranged parts and the arrangement position can be improved according to the requirement, and the protection scope of the patent is covered.

In this embodiment, for convenience of description and illustration, the first latch mechanism 6 is generally configured by forming a locking hole in the metal housing 1 and forming a locking protrusion 603 in the metal housing 1. For convenience of use or installation, the positions of the locking holes and the locking protrusions 603 can be interchanged, and the present invention is also within the protection scope of the present patent. For example, the locking hole is formed in the metal shell 1, and the locking protrusion 603 is formed in the first plastic shell 2. Similarly, the positions of the latch hole 701 and the latch 702 of the second latch mechanism 7 can be called, and are not described in detail herein.

Based on the above structure and the realized functions, the first positioning through hole 601, the second positioning through hole 602, and the clamping hole 701 may be arranged in a plurality of shapes, including but not limited to a triangle, a quadrangle, a pentagon, and the like.

In order to realize the use of the power socket, the first metal terminal 4 and the second metal terminal 5 are arranged at the lower end of the metal shell 1, the first metal terminal 4 and the second metal terminal 5 downwards extend into the second plastic shell 3, and the first metal terminal 4 and the second metal terminal 5 are connected with the automobile power supply through the second plastic shell 3.

Based on the above structure, when installing, as shown in fig. 4, the lower end of the metal shell 1 is provided with an installation groove 8, and the upper end of the second plastic shell 3 extends into and is fixed in the installation groove 8. The first metal terminal 4 is fixed with the second plastic shell 3 through injection molding, so that the stability of the first metal terminal 4 is ensured, the upper end of the first metal terminal 4 is fixed at the upper end of the second plastic shell 3, and the lower end of the first metal terminal 4 penetrates into the second plastic shell 3; the upper end of the second metal terminal 5 is riveted with the lower end of the metal shell 1, and further, fixing modes such as welding, abutting and the like can be adopted, and the upper end and the lower end of the metal shell are all within the protection scope of the application. As shown in fig. 5, the metal housing 1 and the second metal terminal 5 are fixed by a rivet, and the lower end of the second metal terminal 5 penetrates into the second plastic housing 3. During the specific use, insert supply socket in to the accessory, to accessory and metal casing 1 intercommunication, second terminal and metal casing 1 intercommunication communicate accessory and first terminal simultaneously, have realized the intercommunication of whole circuit, realize the circular telegram to the accessory.

Of course, for the convenience of mounting the first metal terminal 4 and the second metal terminal 5, the fixing manners of the first metal terminal 4 and the second metal terminal 5 may also be interchanged, all of which are not intended to limit the first metal terminal 4 and the second metal terminal 5 in the embodiment of the present application, for example, the first metal terminal 4 is fixed by riveting, and the second metal terminal 5 is fixed by injection molding.

Based on the above embodiment, in order to realize the stable insertion of the fitting and fix the metal housing 1 and the second plastic housing 3, further, as shown in fig. 5 and 6, the connector further includes a polygon limiting member 9 disposed at the upper end of the second plastic housing 3, the polygon limiting member 9 is disposed along the inner edge of the mounting groove 8, and the height of the polygon limiting member 9 is higher than that of the mounting groove 8. One end of the polygonal limiting part 9 extends out of the mounting groove 8 and is clamped and fixed with the bottom in the metal shell 1, and during specific installation, a groove structure with the same thickness as the mounting groove 8 can be arranged at the end part of the polygonal limiting part 9 and is fixedly connected with the inner edge of the mounting groove 8 in an inserting mode, so that the metal shell 1 and the second plastic shell 3 are installed stably. As shown in fig. 5, the upper end of the first metal terminal 4 is disposed in the polygonal limiting member 9, the upper end of the second metal terminal 5 is disposed outside the gap of the polygonal limiting member 9, and the lower end of the first metal terminal 4 and the lower end of the second metal terminal 5 extend downward into the second plastic housing 3 from the gap of the polygonal limiting member 9.

It should be noted that the polygon limiting part 9 may be a protrusion structure, or may be a groove structure, and is used for inserting a fitting into the polygon limiting part 9 when in use, and an inner wall of the polygon limiting part 9 is in close contact with the fitting, so as to achieve a limiting and anti-disengaging effect, and the specific polygon limiting part 9 includes, but is not limited to, a triangle, a quadrangle, a pentagon, and the like.

In order to realize the heat dissipation effect, as shown in fig. 3 and 6, a vent hole 10 is formed in the middle of the upper end of the first metal terminal 4, a polygonal hole 11 is formed in the second plastic housing 3 contacting with the upper end of the first metal terminal 4, the side length of the polygonal hole 11 is greater than the inner diameter of the vent hole 10, and the vent hole 10 faces the polygonal hole 11, so that a part of the lower end of the first metal terminal 4 is exposed in the polygonal hole 11, thereby realizing a part of the heat dissipation function. The inner cavity of the metal shell 1 is communicated with the inner cavity of the second plastic shell 3 through the vent hole 10 and the polygonal hole 11, and meanwhile, heat in the metal shell 1 can also downwards enter the second plastic shell 3 through the communication hole and the polygonal hole 11, so that heat exchange is realized.

In summary, in the above embodiments, the present application improves the existing power socket structure, and adds the first latch mechanism 6 and the second latch mechanism 7, so that the stability of the installation of the metal shell 1 and the first plastic shell 2 and the second plastic shell 3 can be realized.

On the basis of above-mentioned structure, in order to pop out in time the accessory when power socket generates heat seriously, can assist power socket's 1 inner chamber of metal casing heat dissipation simultaneously, this application still provides another embodiment. Specifically, as shown in fig. 7, a cooling mechanism 12 is designed, the cooling mechanism 12 is disposed in the second plastic housing 3, and the cooling mechanism 12 is communicated with the inner cavity of the metal housing 1 through a communication hole. The temperature lowering mechanism 12 is in contact with the communication hole, and can receive heat and realize feedback. Can be when metal casing 1 generates heat seriously, outside the ejecting metal casing 1 of accessory, can blow the heat dissipation to 1 inner chamber of metal casing simultaneously. The structure and the working principle of the cooling mechanism 12 are as follows:

specifically, the cooling mechanism 12 includes a support plate 121 fixed in the second plastic housing 3, an air bag 122, a bimetal 123, a top pipe 124, a ceramic heat insulating plate 125 and a slide 126. The support plate 121 is disposed below the polygonal hole 11 and parallel to the polygonal hole 11 for supporting the airbag 122, the ceramic heat insulation sheet 125, and the support plate 121 may be integrally formed with the second plastic housing 3 or fixed in other manners. The fixed gasbag 122 that is equipped with in backup pad 121 upper end, gasbag 122 lower extreme is fixed with backup pad 121 through pasting the mode, gasbag 122 upper end is equipped with ceramic heat insulating sheet 125, can be isolated the heat that produces from first metal terminal 4 to a certain extent, terminal surface and gasbag 122 up end are fixed for pasting under the ceramic heat insulating sheet 125 simultaneously, can drive gasbag 122 expansion when ceramic heat insulating sheet 125 upwards removes and realize aerifing, and can drive ceramic heat insulating sheet 125 downward movement certain distance when gasbag 122 outwards releases gas.

Based on the above structure, as shown in fig. 7, the upper end of the ceramic heat insulation sheet 125 is provided with the bimetal 123 bending upwards, specifically, the middle part of the bimetal 123 is fixed with the ceramic heat insulation sheet 125, and both ends of the bimetal 123 can move. The bimetallic strip 123 is bent and fixed with a top pipe 124 communicated with the air bag 122 at the middle part, and during specific installation, the top pipe 124 is a hollow pipe, the lower end of the top pipe is fixedly connected with the middle part of the bimetallic strip 123, and meanwhile, the top pipe extends downwards to extend through the ceramic heat insulation sheet 125 and is communicated with the air bag 122, so that air inlet and outlet of the air bag 122 are completed through the top pipe 124. The two ends of the bimetal 123 slide in the slideways 126, and the slideways 126 are arranged on two sides of the polygonal hole 11.

Wherein, the top pipe 124 is inserted upwards into the communicating hole, in the initial state, the bimetallic strip 123 is set to be in a bending state, two ends of the bimetallic strip 123 are limited in the slide ways 126, the top pipe 124 is inserted into the communicating hole, but the upper end of the top pipe 124 is flush with the upper end of the communicating hole and does not extend out of the communicating hole, and at this time, the air bag 122 is in a shriveled state under the pressure of the bimetallic strip 123 and the ceramic heat insulation sheet 125; when the top pipe 124 is heated seriously by the first metal terminal 4 contacted with the top pipe and the inner cavity of the metal shell 1, the bimetallic strip 123 generates an upward bending acting force to drive the top pipe 124 to move upward firstly, so as to generate upward pressure on the fitting, so as to promote the fitting to generate upward lifting force and separate from the first metal terminal 4, in the process, the bimetallic strip 123 drives the ceramic heat insulation sheet 125 to move upward and drive the air bag 122 to lift and expand, so that air enters the air bag 122 through the top pipe 124, and the air is stored; when the heat of the bimetal 123 is dissipated and gradually returns to the original state, the air bag 122 is compressed by the bimetal 123 and the ceramic heat insulation sheet 125, so that the air in the air bag 122 is blown into the metal shell 1 through the top pipe 124, the heat in the inner cavity of the metal shell 1 is rapidly dissipated, and the auxiliary heat dissipation effect is achieved.

Meanwhile, through the improvement of the mounting structure of the first metal terminal 4 and the second metal terminal 5 and the arrangement of the cooling mechanism 12 in the second plastic shell 3, the electric pair fittings can be ejected when the overtemperature is used, and meanwhile, the air bag 122 blows air into the metal shell 1, so that the cooling effect is improved. The structure of the invention has strong installation firmness, is safer to use electricity, and improves the cooling effect of the metal shell 1.

In this embodiment, in order to prevent dust from entering the power socket when not in use, an upper cover 13 is further provided, the upper cover 13 is covered on the upper end of the metal casing 1, and the upper cover 13 is hinged on the upper end of the first plastic casing 2 through an elastic sawtooth pin 14. The elastic pin 14 of the present embodiment, as shown in fig. 8, has an elastic saw structure along its length direction, and is compressed when it is inserted between the upper cover 13 and the first plastic housing 2, so that the elastic pin 14 is attached to the through hole, thereby ensuring the stability of use. Meanwhile, the arrangement of the elastic sawtooth pin 14 can reduce the precision requirement on the through hole, and the operating force value of the upper cover 13 is kept unchanged after long-time durable use.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A power socket comprises a metal shell and is characterized by further comprising a first plastic shell sleeved on the upper portion of the metal shell and a second plastic shell fixed at the lower end of the metal shell, wherein a first metal terminal and a second metal terminal penetrate through the lower end of the metal shell and extend downwards into the second plastic shell;

still include first latch mechanism and second latch mechanism, pass through between metal casing and the first plastic casing first latch mechanism is fixed, pass through between metal casing and the second plastic casing second latch mechanism is fixed.

2. The power outlet of claim 1, wherein the lower end of the metal housing is provided with a mounting groove, and the upper end of the second plastic housing is inserted into and fixed in the mounting groove;

the first metal terminal is fixed with the second plastic shell through injection molding, the upper end of the first metal terminal is fixed at the upper end of the second plastic shell, and the lower end of the first metal terminal penetrates into the second plastic shell;

the upper end of the second metal terminal is riveted with the lower end of the metal shell, and the lower end of the second metal terminal penetrates into the second plastic shell.

3. The power socket according to claim 2, further comprising a polygonal limiting member disposed at the upper end of the second plastic housing, wherein the polygonal limiting member is disposed along the inner edge of the mounting groove, and one end of the polygonal limiting member extends out of the mounting groove and is fixed to the inner bottom of the metal housing;

the first metal terminal upper end is arranged in the polygonal limiting part, the second metal terminal upper end is arranged outside the polygonal limiting part gap, and the first metal terminal lower end and the second metal terminal lower end extend into the second plastic shell from the polygonal limiting part gap.

4. The power supply socket according to claim 2, wherein a vent hole is formed in the middle of the upper end of the first metal terminal, a polygonal hole is formed in the second plastic housing in contact with the upper end of the first metal terminal, the vent hole faces the polygonal hole, and the inner cavity of the metal housing is communicated with the inner cavity of the second plastic housing through the vent hole and the polygonal hole.

5. The power socket of claim 1, wherein the first latch mechanism comprises at least 1 locking hole set formed on the metal housing, and the first plastic housing is provided with a locking protrusion matching with the locking hole set.

6. The power outlet of claim 5, wherein the locking hole set comprises a first positioning through hole and a second positioning through hole, and the first positioning through hole and the second positioning through hole are staggered.

7. The power socket of claim 1, wherein the second clamping mechanism comprises at least 1 clamping hole formed in the second plastic shell, and the metal shell is provided with a clamp matched with the clamping hole.

8. The power socket according to claim 4, further comprising a cooling mechanism, wherein the cooling mechanism is disposed in the second plastic shell and is communicated with the inner cavity of the metal shell through the communication hole.

9. The power socket of claim 8, wherein the temperature reducing mechanism includes a support plate, an air bag, a bi-metal plate, a top tube, a ceramic heat-insulating plate and a slide way fixed in the second plastic housing, the support plate is disposed below the polygonal hole, the air bag is fixed at the upper end of the support plate, the ceramic heat-insulating plate is disposed at the upper end of the air bag, the bi-metal plate is bent upward and fixed at the bent middle part thereof, the top tube is fixed at the bent middle part thereof and is connected to the air bag, the top tube penetrates upward into the connecting hole, two ends of the bi-metal plate slide in the slide way, and the slide way is disposed at two sides of the polygonal hole.

10. The electrical outlet of claim 1, further comprising an upper cover disposed at an upper end of said metal housing and hinged to said first plastic housing by a resilient saw-tooth pin.