CN217978420U

CN217978420U - Electric torch with large current overcurrent device

Info

Publication number: CN217978420U
Application number: CN202222271000.8U
Authority: CN
Inventors: 张志勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-12-06
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses a flashlight with large current passing device, which comprises a flashlight body, wherein a light source component, a PCB (printed circuit board) and a battery are arranged in the flashlight body, the battery is a battery with the positive electrode and the negative electrode positioned at the same end, one end of the battery, which is provided with the positive electrode and the negative electrode, faces the PCB, and the PCB and the battery are electrically connected through the large current passing device; the large-current overcurrent device comprises a thimble sleeve, a thimble and a clamping mechanism, wherein the thimble is arranged in the thimble sleeve, and the thimble sleeve is arranged in the PCB to realize the electric connection between the thimble and the PCB; the tail end of the thimble is connected with the positive pole of the battery, the negative pole of the battery is connected with a clamping ring, and the PCB is attached to the clamping ring to form an electric circulation loop. The utility model discloses a thimble, thimble cover, spring, jump ring etc. constitute heavy current and cross the electric installation, and the battery then cooperates its structure that adopts positive negative pole to be in one end together, so can increase the area of electrical contact, reduces contact resistance, makes the electric current ability of passing through can reach 50-100A.

Description

Electric torch with large current overcurrent device

Technical Field

The utility model relates to a small household appliances technical field, concretely relates to flashlight.

Background

Flashlights are small electrical appliances that are commonly used, especially as stock tools during outdoor night activities. Most flashlights on the market at present adopt batteries to supply power, the batteries are generally positive at one end and negative at the other end, and the batteries are generally extruded by springs to be electrically connected with a PCB and other electronic elements. The structure has the defects that the spring is easily extruded and deformed by a battery after being used for a long time, and meanwhile, the spring is heated by large current to lose elasticity, so that the structure is unstable, the electrical contact is poor, and even the spring is scrapped, thereby improving the use cost. Although the positive and negative electrodes are arranged at the same end of the battery at present, the positive and negative electrodes are on the same plane, and are easy to be short-circuited when in use. In addition, the spring is easy to cause current loss due to small conductive contact surface and high contact resistance, so that the current supply is insufficient, and only a small current can pass through, generally the maximum current is 5 or 6A, which is not beneficial to improving the brightness of the flashlight on the premise of low voltage.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a simple structure, reasonable in design, structure are more firm, not fragile, the reliability is higher, can pass through the flashlight that has heavy current and cross the electric installation more of heavy current.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a flashlight with big current crosses electric installation, is provided with light source subassembly, PCB board and battery in the flashlight body including the flashlight body, and the PCB board is connected to the light source subassembly, and the battery is connected to the PCB board, its characterized in that: the battery is provided with a positive electrode and a negative electrode, one end of the battery, which is provided with the positive electrode and the negative electrode, faces the PCB, and the PCB is electrically connected with the battery through a large-current overcurrent device; the large-current overcurrent device comprises a thimble sleeve, a thimble and a clamping mechanism, wherein the thimble is arranged in the thimble sleeve, and the thimble sleeve is arranged in the PCB to realize the electric connection between the thimble and the PCB; the tail end of the ejector pin is connected with the positive electrode of the battery, the negative electrode of the battery is connected with a pressing ring, and the PCB is attached to the pressing ring to form an electric circulation loop.

Furthermore, a groove is arranged in the center of the front end of the battery, the groove forms an anode hole, and the tail end of the thimble is embedded into the anode hole to realize the connection with the anode of the battery; the front end face of the battery is provided with a negative electrode ring surrounding the positive electrode, the rear end face of the pressing ring is provided with a circle of convex ring, and the convex ring of the pressing ring is in contact with the negative electrode ring of the battery to realize connection with the negative electrode of the battery. Thus, the positive electrode and the negative electrode on the battery are staggered and not in the same plane, thereby preventing the short circuit phenomenon.

Furthermore, the thimble sleeve is embedded in a through hole in the center of the PCB, a spring is arranged inside the thimble sleeve, and the spring is sleeved on the thimble; the thimble is in a T-shaped structure, the front end of the spring abuts against the thimble sleeve, and the tail end of the spring abuts against the rear part of the thimble, so that the tail end of the thimble abuts against the positive pole hole of the battery.

Furthermore, a clamping groove is formed in the side wall of the front end of the ejector pin, a clamping spring is arranged in the clamping groove, and the front end face of the ejector pin sleeve is clamped through the clamping spring so as to tightly support the ejector pin sleeve and tightly press the spring.

Furthermore, the front end of the thimble is provided with a plug hole, a wire is connected in the plug hole, and the plug hole is connected with an electronic element in the flashlight, such as a light source assembly, through the wire.

Furthermore, the flashlight body comprises a front part and a rear part which are butted to form the whole flashlight; the battery sets up in the body rear portion, and the front end of battery then stretches into in the body front portion, and PCB board and clamping ring compress tightly in the body front portion.

Furthermore, the thimble is directly contacted with the battery, so that the contact area is large, the stability is high, and the current over-current capacity of the thimble can reach 50-100A.

The utility model discloses a thimble, thimble cover, spring, jump ring etc. constitute heavy current and cross the electric installation, and the battery then cooperates it to adopt positive negative pole with the structure in one end. The thimble is arranged in the thimble sleeve and is tightened by matching the spring and the snap spring, so that the thimble is tightly attached to the positive electrode of the battery under the action of external force, the negative electrode of the battery is connected with the pressing ring, and the pressing ring is tightly attached to the PCB, thereby forming a circulating loop. Therefore, the area of the electrical contact can be increased, the effect of reducing the contact resistance is achieved, and the overload capacity is increased. The problem that the conventional flashlight structure has insufficient current supply to influence large-current transmission due to small conductive contact surface and high contact resistance of a spring, which causes current loss, can be solved, and the current passing capacity can reach 50-100A.

Drawings

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a view of the assembled structure of the large current overload apparatus and the battery;

fig. 4 is a sectional structural view of the assembly of the large current passing device and the battery.

In the figure, 1 is the front part of the body, 2 is the rear part of the body, 3 is the PCB, 4 is the battery, 41 is the positive pole hole, 5 is the high current overcurrent device, 51 is the thimble sleeve, 52 is the thimble, 53 is the spring, 54 is the jump ring, 6 is the clamping ring, 7 is the wire.

Detailed Description

In the embodiment, referring to fig. 1 to 4, the flashlight with the large-current overcurrent device includes a flashlight body, a light source assembly, a PCB 3 and a battery 4 are disposed in the flashlight body, the light source assembly is connected to the PCB 3, and the PCB 3 is connected to the battery 4; the battery 4 is a rechargeable battery with the positive electrode and the negative electrode positioned at the same end, one end of the battery 4 with the positive electrode and the negative electrode faces the PCB 3, and the PCB 3 and the battery 4 are electrically connected through a large-current overcurrent device 5; the high-current overcurrent device 5 comprises an ejector pin sleeve 51, an ejector pin 52 and a clamping mechanism, wherein the ejector pin 52 is arranged in the ejector pin sleeve 51, and the ejector pin sleeve 51 is arranged in the PCB 3 to realize the electric connection between the ejector pin 52 and the PCB 3; the tail end of the thimble 52 is connected with the positive pole of the battery 4, the negative pole of the battery 4 is connected with a pressing ring 6, and the PCB 5 is attached on the pressing ring 6 to form an electrical circulation loop.

A groove is arranged at the center of the front end of the battery 4, the groove forms a positive pole hole 41, and the tail end of the thimble 52 is embedded into the positive pole hole 41 to realize the positive pole connection with the battery 4; a negative electrode ring (not marked) is arranged on the front end face of the battery 4 around the positive electrode, a circle of convex ring (not marked) is arranged on the rear end face of the pressing ring 6, and the convex ring of the pressing ring 6 is in contact with the negative electrode ring of the battery 4 to realize negative electrode connection with the battery 4.

The thimble sleeve 51 is embedded in the through hole at the center of the PCB 3, a spring 53 is arranged inside the thimble sleeve 51, and the spring 53 is sleeved on the thimble 52; the thimble 52 is in a T-shaped structure, the front end of the spring 53 abuts against the thimble sleeve 51, and the tail end abuts against the rear part of the thimble 52, so that the tail end of the thimble 52 abuts against the positive electrode hole 41 of the battery 4.

A clamping groove (not marked) is arranged on the side wall of the front end of the thimble 52, a clamp spring 54 is arranged in the clamping groove, and the front end face of the thimble sleeve 51 is clamped by the clamp spring 54 so as to tightly abut against the thimble sleeve 51, so that the spring 53 is tightly pressed.

The front end of the thimble 52 is provided with a plug hole, a wire 7 is connected in the plug hole 52, and the wire 7 is connected with electronic elements in the flashlight, such as a light source assembly.

The flashlight body comprises a front body part 1 and a rear body part 2 which are butted to form the whole flashlight; the battery 4 is arranged in the rear part 2 of the body, the front end of the battery 4 extends into the front part 1 of the body, and the PCB 3 and the pressing ring 6 are pressed in the front part 1 of the body.

Because the thimble 52 is directly contacted with the battery 4, the contact area is large, and the stability is high, so that the current over-current capability can reach 50-100A.

The above detailed description is only for the preferred embodiment of the present invention, and the scope of the present invention should not be limited by the above detailed description, and all the equivalent variations and modifications made according to the scope of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a flashlight with big current crosses electric installation, is provided with light source subassembly, PCB board and battery in the flashlight body including the flashlight body, and the PCB board is connected to the light source subassembly, and the battery is connected to the PCB board, its characterized in that: the battery is provided with a positive electrode and a negative electrode, one end of the battery, which is provided with the positive electrode and the negative electrode, faces the PCB, and the PCB is electrically connected with the battery through a large-current overcurrent device; the large-current overcurrent device comprises a thimble sleeve, a thimble and a clamping mechanism, wherein the thimble is arranged in the thimble sleeve, and the thimble sleeve is arranged in the PCB to realize the electric connection between the thimble and the PCB; the tail end of the thimble is connected with the positive pole of the battery, the negative pole of the battery is connected with a clamping ring, and the PCB board is attached to the clamping ring to form an electric circulation loop.

2. The flashlight of claim 1 having a high current overpower device, wherein: a groove is arranged in the center of the front end of the battery, the groove forms an anode hole, and the tail end of the thimble is embedded into the anode hole to realize the connection with the anode of the battery; the front end face of the battery is provided with a negative pole ring around the positive pole, the rear end face of the pressing ring is provided with a circle of convex ring, and the convex ring of the pressing ring is in contact with the negative pole ring of the battery to realize negative pole connection with the battery.

3. The flashlight of claim 2 having a high current overpower device, wherein: the thimble sleeve is embedded in a through hole in the center of the PCB, and a spring is arranged in the thimble sleeve and sleeved on the thimble; the thimble is in a T-shaped structure, the front end of the spring abuts against the thimble sleeve, and the tail end of the spring abuts against the rear part of the thimble, so that the tail end of the thimble abuts against the positive pole hole of the battery.

4. A flashlight with a high current overload apparatus as claimed in claim 3 wherein: a clamping groove is formed in the side wall of the front end of the ejector pin, a clamping spring is arranged in the clamping groove, and the front end face of the ejector pin sleeve is clamped through the clamping spring so as to compress the spring.

5. The flashlight of claim 4 having a high current overpower device, wherein: the front end of the thimble is provided with a plug hole, a lead is connected in the plug hole, and the plug hole is connected with an electronic element in the flashlight through the lead.

6. The flashlight of claim 2 having a high current overpower device, wherein: the flashlight body comprises a front part and a rear part which are butted to form the whole flashlight; the battery sets up in the body rear portion, and the front end of battery then stretches into in the body front portion, and PCB board and clamping ring compress tightly in the body front portion.

7. The flashlight of claim 1, wherein said high current overload means comprises: the current over-current capacity of the thimble is 50-100A.