阅读说明：本技术 一种车载直流熔断器 (Vehicle-mounted direct current fuse ) 是由 郭德琼 于 2020-07-21 设计创作，主要内容包括：本发明公开了一种车载直流熔断器,包括外壳,所述外壳的内壁固定有两个对称设置的接电块,所述外壳的两端贯穿插设有与两个接电块分别固定的外接线,其中一个所述接电块的侧壁通过压紧弹簧连接有接电板,所述接电板与另一个接电块相抵,所述外壳的内底部通过复位弹簧连接有隔板,所述隔板的上端固定有吸附块,所述外壳的内顶部固定有电磁铁和电容器。优点在于：本发明中,在外电路出现故障或过载时,电路中的电流将增大,导致压紧弹簧在自身增强的感应磁场的作用下收缩,从而使得接电板与接电块分离,使得外电路断开,并且反应迅速,不需要等待响应,不会造成电路损伤,有效保护电路用电安全。(The invention discloses a vehicle-mounted direct current fuse which comprises a shell, wherein two symmetrically arranged electricity connecting blocks are fixed on the inner wall of the shell, external wires which are respectively fixed with the two electricity connecting blocks are inserted into the two ends of the shell in a penetrating manner, the side wall of one electricity connecting block is connected with an electricity connecting plate through a compression spring, the electricity connecting plate abuts against the other electricity connecting block, the inner bottom of the shell is connected with a partition plate through a reset spring, an adsorption block is fixed at the upper end of the partition plate, and an electromagnet and a capacitor are fixed at the inner top of the shell. Has the advantages that: in the invention, when the external circuit breaks down or is overloaded, the current in the circuit is increased, so that the compression spring contracts under the action of the self-enhanced induction magnetic field, the power connection plate is separated from the power connection block, the external circuit is disconnected, the response is rapid, the waiting response is not needed, the circuit damage cannot be caused, and the power utilization safety of the circuit is effectively protected.)

1. The utility model provides an on-vehicle direct current fuse, includes shell (1), its characterized in that, the inner wall of shell (1) is fixed with the electricity piece (2) that connects that two symmetries set up, the both ends of shell (1) are run through to be inserted and are equipped with and connect the outer line (3) that electricity piece (2) are fixed respectively with two, one of them the lateral wall that connects electricity piece (2) is connected with through pressure spring (4) and connects electroplax (5), connect electroplax (5) and another electricity piece (2) counterbalance, the interior bottom of shell (1) is connected with baffle (7) through reset spring (6), the upper end of baffle (7) is fixed with adsorbs piece (8), the interior top of shell (1) is fixed with electro-magnet (9) and condenser (10).

2. A vehicle-mounted direct current fuse according to claim 1, characterized in that the electromagnet (9) is connected in parallel with the power connection block (2) which is not connected with the compression spring (4) by a lead wire into the total circuit, the capacitor (10) is connected in parallel with the electromagnet (9) by a lead wire into the total circuit, and the electromagnet (9) is positioned right above the adsorption block (8).

3. A vehicle-mounted direct current fuse according to claim 2, characterized in that the partition (7) is made of insulating material, the partition (7) is a hollow annular plate, and the electric connecting plate (5) is located inside the partition (7).

Technical Field

The invention relates to the technical field of power equipment, in particular to a vehicle-mounted direct current fuse.

Background

The vehicle-mounted fuse is also called as an automobile fuse, is one of current fuses, can be fused when the current of a circuit exceeds twice of the rated current of the fuse, plays a role in circuit protection, is commonly used for overcurrent protection of automobile circuits and is also used for overcurrent protection of industrial equipment.

Current on-vehicle fuse comprises the fuse that can melt basically, therefore self can fuse when the circuit fault protects, leads to the fuse that needs to be changed after the trouble, otherwise can't continue to use, consumes the material and needs artificial change simultaneously, and very inconvenient and use cost is higher, and unable used repeatedly leads to the oneself to lose greatly to need wait for the fuse to fuse, response time is longer, leads to the circuit to be impaired in changing the time easily.

Disclosure of Invention

The invention aims to solve the problem that a fuse in the prior art has large self-loss, and provides a vehicle-mounted direct current fuse.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an on-vehicle direct current fuse, includes the shell, the inner wall of shell is fixed with the electricity piece that connects that two symmetries set up, the both ends of shell are run through to be inserted and are equipped with and connect the external connection that the electricity piece is fixed respectively, one of them the lateral wall that connects the electricity piece is connected with through pressure spring and connects the electroplax, connect the electroplax to connect the electricity piece to offset with another, the interior bottom of shell is connected with the baffle through reset spring, the upper end of baffle is fixed with adsorbs the piece, the interior top of shell is fixed with electro-magnet and condenser.

In the vehicle-mounted direct current fuse, the electromagnet is connected in parallel with the power connection block which is not connected with the compression spring through a lead and is connected into the main circuit, the capacitor is connected in parallel with the electromagnet through a lead and is connected into the main circuit, and the electromagnet is positioned right above the adsorption block.

In the vehicle-mounted direct current fuse, the partition plate is made of an insulating material, the partition plate is an annular plate with a hollow middle part, and the power receiving plate is located inside the partition plate.

Compared with the prior art, the invention has the advantages that:

1. in the invention, when the external circuit breaks down or is overloaded, the current in the circuit is increased, so that the compression spring contracts under the action of the self-enhanced induction magnetic field, the power connection plate is separated from the power connection block, the external circuit is disconnected, the response is rapid, the waiting response is not needed, the circuit damage cannot be caused, and the power utilization safety of the circuit is effectively protected;

2. in the invention, when the external circuit is disconnected, the capacitor supplies power to the electromagnet so that the electromagnet keeps magnetic after the external circuit is disconnected, and the power connection plate shifts to not hinder the partition plate from moving any more when the external circuit is disconnected, so that the adsorption block and the partition plate move upwards under the action of magnetic force to separate the power connection plate from the power connection block, the external circuit is kept separated within a certain time, the electrification cannot be rapidly recovered, the impact on the circuit is avoided, and the problem of processing the circuit is solved by giving time to a user;

3. in the invention, the electric storage capacity of the capacitor is limited and certain, so that after the capacitor is discharged, the electromagnet is not electrified, the adsorption block is not influenced by magnetic force any more, and then the adsorption block moves downwards under the action of the elastic force of the reset spring to reset, so that the power connection block is in contact with the power connection plate again, the power supply of an external circuit is recovered, and the automatic power supply recovery can be finished without manual intervention;

4. in the invention, the interval time from power failure to power restoration is determined by the stored electricity quantity of the capacitor and is fixed, so that a user can process faults in a determined time so as to effectively avoid the occurrence of electric shock and other dangers, the replacement of a fuse wire is not required, manual operation is not required, manpower is saved, and extra resource waste is not generated.

Drawings

FIG. 1 is a schematic structural diagram of a vehicle-mounted DC fuse according to the present invention;

fig. 2 is a sectional view taken in the direction a of fig. 1.

In the figure: the device comprises a shell 1, an electricity connecting block 2, an external connecting wire 3, a pressing spring 4, an electricity connecting plate 5, a return spring 6, a partition plate 7, an adsorption block 8, an electromagnet 9 and a capacitor 10.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.