CN217273624U

CN217273624U - Electric conduction structure of flashlight

Info

Publication number: CN217273624U
Application number: CN202220611771.4U
Authority: CN
Inventors: 鲍永
Original assignee: Yuyao Yuchang Electrical Appliance Co Ltd
Current assignee: Yuyao Yuchang Electrical Appliance Co Ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-08-23
Anticipated expiration: 2032-03-18

Abstract

A flashlight conducting structure is located in a shell of a flashlight and comprises a first conducting structure and a second conducting structure, wherein the first conducting structure is connected between a power source and an input end of a circuit board, the second conducting structure is connected between an output end of the circuit board and a light source, the first conducting structure comprises an elastic body connected with a first conducting electrode of the power source, the flashlight conducting structure is characterized in that the first conducting structure further comprises a conducting piece which is fixed on the circuit board and is directly abutted to the shell, and the second conducting structure comprises a spring needle or a spring piece which can conduct electricity. After adopting above-mentioned structure, when the equipment, need not glue, also need not the electric wire, can conveniently realize required electricity and connect, and overall structure is simple, and the assembly is quick, and then can improve the equipment effect. Meanwhile, the convex part is additionally arranged, so that the power supply can be effectively prevented from extruding the elastomer, the elastomer cannot be separated from the circuit board, the reliability of electric connection between the elastomer and the circuit board is ensured, the qualification rate of a product drop test can be finally improved, and the service life of the product drop test is prolonged.

Description

Electric torch conductive structure

Technical Field

The utility model relates to a flashlight especially relates to a flashlight conducting structure.

Background

The flashlight is a lighting tool frequently used in daily life of people, and generally comprises a barrel head part, a barrel body part, a barrel tail part, a switch for controlling light emission of a light source and a power supply for supplying power to the light source, wherein the power supply mostly adopts a dry battery or a storage battery and is usually arranged in the barrel body part; the second conductive structure is connected between the output end of the circuit board and the light source. The light source is usually positioned in the head part of the tube, and is also arranged in the tail part of the tube simultaneously so as to realize the requirements of front and back illumination.

Looking at the existing flashlight throughout, the first conductive structure usually includes a locking plate and an elastic body (usually a spring), the elastic body is connected with a first conductive electrode (adjacent to the head part) of the power supply, the locking plate is screwed into the barrel body shell, namely, the second conductive electrode (adjacent to the tail part) of the power supply is connected with the barrel body shell, by adopting the structure, although the purpose of supplying power to the light source can be realized, the installation of the locking plate is extremely inconvenient, and the loosening phenomenon easily occurs to influence the electrical connection performance. In order to strengthen the stability of the locking plate, glue injection is sometimes needed to improve the firmness between the locking plate and the cylinder shell, but the glue injection increases the assembly time on one hand, and the glue injection at the narrow part is difficult on the other hand. Secondly, in the existing conductive structure, when the flashlight is subjected to a drop test, the power supply easily extrudes the elastic body, so that the elastic body is separated from the corresponding input end on the circuit board, the light source is powered off and cannot normally work, and the drop test of the flashlight is unqualified. Moreover, the second conductive structure is often electrically connected by a wire, and the installation is also inconvenient, so that further improvement is needed for the conventional conductive structure of the flashlight.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art, provide a simple structure, simple to operate's flashlight conducting structure.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a flashlight conducting structure, is located the shell of flashlight, and it is including first conducting structure and second conducting structure, and wherein first conducting structure connects between the input of power and circuit board, second conducting structure connects between the output of circuit board and light source, first conducting structure is including the elastomer that links to each other with the first conductive electrode of power, its characterized in that: the first conductive structure further comprises a conductive piece which is fixed on the circuit board and directly abutted against the shell, and the second conductive structure comprises a spring pin or an elastic piece which can conduct electricity.

In order to prevent the power supply from pressing the elastic body to prevent the elastic body from separating from the second circuit board, it is further improved that an inner shell for the circuit board to be located is further arranged in the outer shell, a hollow convex part is arranged on the end part of the inner shell facing the power supply, and the elastic body is at least partially located in the convex part.

Still more improved, the peripheral surface of the convex part is provided with a groove avoiding the conductive piece, so as to avoid interference with the conductive piece.

In each of the above solutions, the conductive member includes a main body designed in an arc shape and upright portions respectively located at two ends of the main body, the main body abuts against the housing, and the upright portions are located in the circuit board for convenient installation.

It is further preferred that the circuit board comprises a first circuit board and a second circuit board, the first circuit board and the second circuit board are electrically connected with each other and are arranged along the axial direction of the flashlight, the second circuit board is arranged between the first circuit board and the power supply, and the conductive member is positioned on the second circuit board.

In order to facilitate assembly, two clamping grooves are formed in the second circuit board, and the vertical parts are clamped in the corresponding clamping grooves; or the upright part is welded on the second circuit board.

Preferably, the second conductive structure further comprises an insulating base fixed on the first circuit board, and the pogo pin or the spring plate is supported on the insulating base.

Compared with the prior art, because the utility model discloses a directly be fixed in the circuit board and with the shell butt electrically conductive, and second conductive structure adopts the spring pin or the shell fragment that have certain elasticity, during consequently the equipment, need not glue, also need not the electric wire, can conveniently realize required electricity and connect, and overall structure is simple, and the assembly is quick, and then can improve the equipment effect. Meanwhile, the convex part is additionally arranged, so that the power supply can be effectively prevented from extruding the elastomer, the elastomer can not be separated from the circuit board, the reliability of electric connection between the elastomer and the circuit board is ensured, the qualification rate of a product drop test can be finally improved, and the service life of the product drop test is prolonged.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

FIG. 4 is a partial perspective view of the housing and clamping member of FIG. 1 with the housing and clamping member removed;

fig. 5 is a perspective view of fig. 4.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The main improvement of this embodiment is the conductive structure of the flashlight, and as for other components of the flashlight, the structure on the existing flashlight can be adopted. Fig. 1 is a perspective view of only one flashlight, that is, the conductive structure of the embodiment can be applied to other flashlights besides the flashlight structure shown in fig. 1. For convenience of description, the conductive structure will be understood by taking the flashlight shown in fig. 1 as an example.

The flashlight shown in fig. 1 to 5 comprises a shell 1, a light source 2, a power supply 3, a switch 4 for controlling the light source 2 to emit light and a flashlight conducting structure, wherein the shell 1 can be divided into a barrel head part a, a barrel body part B and a barrel tail part C from top to bottom, and the barrel head part a and the barrel body part B and the barrel tail part C can be fixed together by adopting a detachable structure. For example, the barrel body part B can be respectively fixed with the barrel head part A and the barrel tail part C through a thread structure; a snap-fit form may also be used. And a sealing ring 01 can be arranged at the fastening position of the barrel body part B and the barrel head part A so as to prevent external water drops from entering the interior of the flashlight at the gap between the barrel body part B and the barrel head part A when the barrel body part B and the barrel head part A are fastened. Similarly, a seal ring 01 is provided at the fastening point of the barrel body B and the barrel tail C. The outer sides of the head part A, the body part B and the tail part C can be coated with coats or designed with anti-skid lines as required so as to increase the comfort level of a user when holding the flashlight. By fixing the holder 02 to the barrel portion B, the flashlight can be conveniently hung on a desired position or structure by a user.

In this embodiment, specifically, the cartridge head portion a includes a cartridge head portion housing 11 and a cartridge head cover 12 screwed to an upper end of the cartridge head portion housing 11, and the light source 2 (LED lamp is used in the drawing) and the circuit board 5 configured for the light source 2 and the switch 4 are mounted on the cartridge head portion a, and in addition, the cartridge head portion a is mounted with conventional components such as a reflector 6 and a lens 7. The barrel section B includes a barrel section casing 13, and the power supply 3 using a rechargeable battery is mounted in the barrel section casing 13. Section of thick bamboo afterbody C is including section of thick bamboo afterbody shell 14 and threaded connection at section of thick bamboo afterbody shell 14's section of thick bamboo tail lid 15 to inject power 3 in barrel body portion B, and install magnet 03 on section of thick bamboo tail lid 15, make the flashlight adsorb on the installation site of iron.

The conductive structure is positioned in the shell 1 of the flashlight and comprises a first conductive structure 8 and a second conductive structure 9, wherein the first conductive structure 1 is connected between the power supply 3 and the input end of the circuit board 5, the power supply 3 and the circuit board 5 are respectively positioned in the barrel head part A and the barrel body part B, so the first conductive structure 8 is positioned at the joint of the barrel head part A and the barrel body part B, the first conductive structure 8 comprises an elastic body 81 connected with a first conductive electrode of the power supply 3 and a conductive piece 82 fixed on the circuit board 5 and directly abutted with the shell, the shell abutted with the conductive piece 82 corresponds to the barrel body part shell 13, the lower end of the barrel body part shell is connected with a second conductive electrode of the power supply 3 through the prior art (such as a spring and a conductive piece), so the first conductive electrode of the power supply 3 is connected with the first input end of the circuit board 5 through the elastic body 81, the second conductive electrode of the power supply 3 is connected to the second input terminal of the circuit board 5 through the elastomer barrel casing 13 and the conductive member, so that the power supply 3 supplies power to the light source 2 through the circuit board 5. Here, the shape of the conductive member 82 may be various, but in order to fit the protrusion 161 described below, in the present embodiment, it is preferable that the conductive member 82 is designed to have a shape including a main body 821 formed in an arc shape and upright portions 822 respectively located at both ends of the main body 121, the main body 821 is directly abutted against the end surface of the barrel portion housing 13, and the upright portions 822 are located in the wiring board 5. For ease of installation, the circuit board 5 further comprises a first circuit board 51 and a second circuit board 52, which are electrically connected to each other and are disposed along the axial direction of the flashlight, the second circuit board 52 is disposed between the first circuit board 51 and the power source 3, and the two upright portions 122 of the conductive member 82 are positioned on the second circuit board 52. Specifically, two card slots 521 are provided on the second circuit board 52, and the two upright portions are respectively clamped in the corresponding card slots 521. Of course, the upright portion 822 may be soldered to the second circuit board 52, and the conductive member 82 may be positioned on the circuit board.

The second conductive structure 9 is connected between the output end of the first circuit board 51 and the light source 2, that is, in the flashlight, the second conductive structure 9 is located in the barrel head portion a, and the second conductive structure 9 includes a pogo pin 91 or a spring plate capable of conducting electricity. Spring pins are used in the figure, and for the convenience of installation, the second conductive structure 9 further includes an insulating base 92 fixed on the first circuit board, two spring pins 91 are supported on the insulating base 92 such that the lower ends thereof are electrically connected to the corresponding output terminals of the first circuit board 51, and the upper ends of the two spring pins 91 are in contact with two electrodes on the substrate 10 on which the power supply 2 is installed.

In the present embodiment, in order to restrain the first wiring board 51 and the second wiring board 52, an inner housing 16 on which the first wiring board 51 and the second wiring board 52 are seated is provided in the cartridge head housing 10, the inner housing 16 is provided with a hollow protrusion 161 at an end portion facing the power supply 3, specifically, the inner housing 16 is formed by combining a left housing 16a and a right housing 16b, and the protrusion 161 is located on the left housing 16 a. The elastic body 81 is a spring, and the upper half thereof is located in the projection 161. And, in order to prevent interference with the conductive member 82, the outer circumferential surface of the convex portion 161 has a groove 162 which avoids the main body of the conductive member 82. Thus, the protrusion 161 can effectively prevent the power supply 3 from extruding the elastic body 81, so that the elastic body 81 is not separated from the second circuit board 52, and the reliability of the electrical connection between the two is ensured, thereby ensuring that the flashlight can smoothly pass a drop test, and being beneficial to prolonging the service life of the flashlight.

In addition to the above embodiments, an auxiliary light source may be installed at the rear of the barrel as needed, and in this case, the conductive structure needs to be provided between the power supply and the auxiliary light source.

Although the preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a flashlight conducting structure, is located the shell of flashlight, and it is including first conducting structure and second conducting structure, and wherein first conducting structure connects between the input of power and circuit board, the second conducting structure is connected between the output of circuit board and light source, first conducting structure is including the elastomer that links to each other with the first conducting electrode of power, its characterized in that: the first conductive structure further comprises a conductive piece which is fixed on the circuit board and directly abutted against the shell, and the second conductive structure comprises a spring pin or an elastic piece which can conduct electricity.

2. The flashlight conducting structure of claim 1, wherein: the shell is internally provided with an inner shell for the circuit board to be located, the end part of the inner shell facing the power supply is provided with a hollow convex part, and the elastic body is at least partially located in the convex part.

3. The flashlight conductive structure of claim 2, wherein: the peripheral surface of the convex part is provided with a groove which avoids the conductive piece.

4. The flashlight conducting structure of claim 1, 2 or 3, wherein: the conductive piece comprises a main body designed into an arc shape and upright parts respectively positioned at two ends of the main body, the main body is abutted against the shell, and the upright parts are positioned in the circuit board.

5. The flashlight conducting structure of claim 4, wherein: the circuit board comprises a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board are electrically connected with each other and are arranged along the axial direction of the flashlight, the second circuit board is arranged between the first circuit and the power supply, and the conductive piece is positioned on the second circuit board.

6. The flashlight conducting structure of claim 5, wherein: two clamping grooves are formed in the second circuit board, and the vertical parts are clamped in the corresponding clamping grooves; or the upright part is welded on the second circuit board.

7. The flashlight conducting structure of claim 5, wherein: the second conductive structure further comprises an insulating seat fixed on the first circuit board, and the spring pins or the spring pieces are supported on the insulating seat.