CN214468486U

CN214468486U - Sealing matching structure of power supply contact pin and lamp body of sealing lamp

Info

Publication number: CN214468486U
Application number: CN202120960767.4U
Authority: CN
Inventors: 刘国秀
Original assignee: Hunan Shengguang Automobile Electric Appliance Co ltd
Current assignee: Hunan Shengguang Automobile Electric Appliance Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-10-22
Anticipated expiration: 2031-05-07

Abstract

The utility model discloses a sealed cooperation structure of power contact pin and lamp body of sealed lamps and lanterns, belong to the lighting lamp technical field, it is poor to have solved prior art contact pin department leakproofness, has the problem of great potential failure hazard, including lamp housing, power contact pin and fixed plate, lamp housing includes the contact pin mounting hole that the power contact pin inserted, lamp housing one side is fixed and is provided with the fixed plate, the tip that the power contact pin connects the fixed plate is provided with the lug, the lug is located between lamp housing and the fixed plate, it hugs closely on the fixed plate, the contact pin mounting hole includes direction mouth and vertical hole, the direction mouth is located the contact pin mounting hole and is close to the one end of lug; the elasticity of the plastic material is utilized to expand and deform the hole to be sleeved on the power supply contact pin, and when the hole is restored, the clamping force on the power supply contact pin is generated, so that the two parts are connected, the structure is simple, the existing process and assembly man-hour are not influenced, and the performance of the lamp, which is influenced by the environment change and the material change, is obviously improved.

Description

Sealing matching structure of power supply contact pin and lamp body of sealing lamp

Technical Field

The utility model belongs to the technical field of the illumination lamps and lanterns, specifically a sealed cooperation structure of power contact pin and lamp body of sealed lamps and lanterns.

Background

The vehicle lighting lamp needs better sealing performance to ensure good waterproof and dustproof performance, and a power supply contact pin is connected at a power supply input interface and is sealed with a lamp shell.

In the prior art, rubber sealing rings are used at a power supply contact pin and a lamp shell contact pin, and the contact pin needs to be further sealed in order to ensure that the lamp does not leak gas. In the prior art, due to the influence of the components of the lamp housing, climate change, thermal expansion and contraction or other environmental reasons, the unsealed phenomenon at the lamp pin is changed greatly in normal production, and although the lamp housing is treated by adding a diluent and baked by an oven in production, the sealing problem at the place can not be solved completely.

Therefore, those skilled in the art provide a sealing and fitting structure for sealing the power pins and the lamp body of the lamp, so as to solve the problems mentioned in the above background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed cooperation structure of power contact pin and lamp body of sealed lamps and lanterns for solve following technical problem:

in the prior similar products, the contact pin is sealed by using a sealant process, so that the sealing property is poor, the hidden trouble of failure is large, and the process is complicated.

In order to achieve the above object, the utility model provides a following technical scheme:

a sealed matching structure of a power supply contact pin and a lamp body of a sealed lamp comprises a lamp shell, a power supply contact pin and a fixing plate;

the lamp shell comprises a contact pin mounting hole for inserting a power contact pin, a fixing plate is fixedly arranged on one side of the lamp shell, and one end of the power contact pin is fixedly connected with the fixing plate; a lug is arranged at one end part of the power supply contact pin connecting fixing plate, is positioned between the lamp shell and the fixing plate and is tightly attached to the fixing plate; the contact pin mounting hole comprises a guide port and a vertical hole, and the guide port is located at one end, close to the lug, of the contact pin mounting hole.

Further scheme: the power supply contact pin is characterized in that a contact pin head is arranged at one end part, far away from the fixing plate, of the power supply contact pin, the contact pin head is in a trapezoidal table shape, the whole power supply contact pin is in a long strip shape, and the cross section of the power supply contact pin is in a rectangular shape.

Further scheme: the lamp shell is provided with a bolt and is fixed on the vehicle body through the bolt.

Further scheme: a convex cavity is arranged in the lamp shell and located on one side, deviating from the guide opening, of the contact pin mounting hole, and the contact pin head is arranged in the convex cavity.

Further scheme: the cross section of the vertical hole is the same as that of the power supply contact pin, and the cross section size of the vertical hole is smaller than that of the power supply contact pin.

Further scheme: the guide port is trumpet-shaped.

Further scheme: at least two contact pin mounting holes are formed in the lamp shell, and the number of the power contact pins is the same as that of the contact pin mounting holes.

Further scheme: the power supply contact pin penetrates through the fixing plate to extend out, the extending part of the power supply contact pin is welded on the circuit board, and one end of the power supply contact pin, which is provided with a contact pin head, is inserted into the wiring harness connector.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the power supply contact pin and the contact pin mounting hole are at least provided with 0.02mm of interference fit amount at one side through the contact pin mounting hole arranged in the lamp shell, so that the contact pin is pressed into the lamp shell jack to form a closed state, the elasticity of the plastic material is utilized to expand and deform the hole to be sleeved on the power supply contact pin, and when the hole is restored, the clamping force to the power supply contact pin is generated, so that the two parts are connected, the structure is simple, the existing process and assembly man-hour are not influenced, and the performance of the lamp, which is influenced by the environment change and the material change, is obviously improved.

2. The lug and the trapezoidal platform-shaped pin head arranged on the power supply pin can enable the power supply pin to be installed in the pin installation hole more easily under the matching of the fixing plate.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the D-D cross-sectional structure of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic structural view of the pin mounting hole and the power pin of the present invention;

fig. 4 is a schematic structural view of the pin mounting hole of the present invention.

In the figure: 1. a lamp housing; 11. a pin mounting hole; 111. a guide port; 112. a vertical hole; 12. a lug cavity; 2. a power supply pin; 21. a bump; 22. a needle insertion head; 3. a fixing plate; 4. and (4) bolts.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in an embodiment of the present invention, a sealing and matching structure of a power pin and a lamp body of a sealed lamp includes a lamp housing 1, a power pin 2, and a fixing plate 3, where the lamp housing 1 includes a pin mounting hole 11 into which the power pin 2 is inserted, the fixing plate 3 for fixing the power pin 2 is fixedly disposed on the lamp housing 1, and a bolt 4 for fixing the structure to a vehicle body is disposed on the lamp housing 1;

in this embodiment, a protruding block 21 is disposed at one end of the power pin 2 connected to the fixing plate 3, and the protruding block 21 is located between the lamp housing 1 and the fixing plate 3 and clings to the fixing plate 3; the pin mounting hole 11 comprises a guide opening 111 and a vertical hole 112, and the guide opening 111 is positioned at one end of the pin mounting hole 11 close to the bump 21; the guide port 111 is trumpet-shaped; one end part of the power supply pin 2 far away from the fixing plate 3 is provided with a pin head 22, and the pin head 22 is in a trapezoidal table shape; the power supply contact pin 2 is integrally in a strip shape, the cross section of the power supply contact pin is rectangular, and the rectangle is rectangular or square; the cross section of the power supply pin 2 is not limited to be rectangular and can be made into a round shape, an oval shape or an irregular shape according to the requirement; a convex cavity 12 is arranged in the lamp housing 1, the convex cavity 12 is positioned on one side of the pin mounting hole 11 departing from the guide opening 111, and the pin head 22 is arranged in the convex cavity 12 of the lamp housing 1; the cross section of the vertical hole 112 is the same as that of the power pin 2, and the cross section size is smaller than that of the power pin 2;

in this embodiment, the power pin 2 has an interference fit amount of at least 0.02mm with a single side of the vertical hole 112, so that the pin is pressed into the lamp housing jack to form a closed state; the lamp shell 1 is made of plastic material;

in this embodiment, at least two pin mounting holes 11 are formed in the lamp housing 1, the number of the power pins 2 is the same as that of the pin mounting holes 11, and preferably, two pin mounting holes 11 are formed in the lamp housing 1; the power supply pin 2 penetrates through the fixing plate 3 to leak, the leaking part of the power supply pin 2 is welded on a circuit board, one end of the power supply pin 2 with the pin head 22 is inserted into the wiring harness connector, and the wiring harness connector is partially immersed into the convex cavity 12 to fix the wiring harness connector.

The working principle is as follows:

the lamp shell 1 is made of plastic materials and is integrally formed by using a mold in production. Two pin mounting holes 11 with the same size are generally arranged in the lamp shell 1 for inserting the power pin 2, the single side of the power pin 2 and the pin mounting hole 11 has at least 0.02mm interference fit amount, so that the pin is pressed into the lamp shell jack to form a closed state, the elasticity of the plastic material is utilized to expand and deform the hole to be sleeved on the power pin 2, and when the hole is restored, the clamping force to the power pin 2 is generated, so that the two parts are connected. The guide opening 111 of the pin mounting hole 11 is to facilitate the power pin 2 to enter the pin mounting hole 11. Because of the arrangement of the bump 21 on the power pin 2, a force is applied to the fixing plate 3 to push the power pin 2 into the pin mounting hole 11.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. The utility model provides a sealed cooperation structure of power contact pin and lamp body of sealed lamps and lanterns, includes lamps and lanterns shell (1), its characterized in that, this sealed cooperation structure still includes: a power supply pin (2) and a fixing plate (3);

the lamp shell (1) comprises a contact pin mounting hole (11) for inserting the power contact pin (2), a fixing plate (3) is fixedly arranged on one side of the lamp shell (1), and one end of the power contact pin (2) is fixedly connected with the fixing plate (3);

a lug (21) is arranged at one end part of the power supply contact pin (2) connected with the fixing plate (3), and the lug (21) is positioned between the lamp shell (1) and the fixing plate (3) and clings to the fixing plate (3);

the pin mounting hole (11) comprises a guide opening (111) and a vertical hole (112), and the guide opening (111) is located at one end, close to the bump (21), of the pin mounting hole (11).

2. The sealing and matching structure of the power pin and the lamp body of the sealed lamp as claimed in claim 1, wherein a pin head (22) is disposed at an end of the power pin (2) away from the fixing plate (3), the pin head (22) is in a trapezoidal table shape, and the power pin (2) is in an overall elongated shape with a rectangular cross section.

3. The sealing and matching structure of the power pin and the lamp body of the sealed lamp as claimed in claim 1, wherein the lamp housing (1) is provided with a bolt (4), and the lamp housing (1) is fixed on the vehicle body through the bolt (4).

4. The sealing and matching structure of the power pin and the lamp body of the sealed lamp as claimed in claim 2, wherein a convex cavity (12) is provided in the lamp housing (1), the convex cavity (12) is located on a side of the pin mounting hole (11) facing away from the guide opening (111), and the pin head (22) is provided in the convex cavity (12).

5. The sealing and matching structure of the power pin and the lamp body of the sealed lamp as claimed in claim 1, wherein the cross-sectional shape of the vertical hole (112) is the same as the cross-sectional shape of the power pin (2), and the cross-sectional dimension is smaller than the cross-sectional dimension of the power pin (2).

6. The sealing and matching structure of the power pin and the lamp body of the sealed lamp as claimed in claim 1, wherein the guide opening (111) is trumpet-shaped.

7. The sealing and matching structure of the power pins and the lamp body of the sealed lamp as claimed in claim 1, wherein at least two pin mounting holes (11) are formed in the lamp housing (1), and the number of the power pins (2) is the same as that of the pin mounting holes (11).

8. The sealing and matching structure of the power pin and the lamp body of the sealed lamp as claimed in claim 1, wherein the power pin (2) extends through the fixing plate (3), the extending portion thereof is soldered to the circuit board, and one end of the power pin (2) having the pin head (22) is inserted into the wiring harness connector.