CN217690680U

CN217690680U - Plug-in type pre-charging resistor with juxtaposed temperature fuses

Info

Publication number: CN217690680U
Application number: CN202220333055.4U
Authority: CN
Inventors: 刘辉兵; 刘崇会; 谭祝兰
Original assignee: Guangdong Tuofeng Electronic Technology Co ltd
Current assignee: Guangdong Tuofeng Electronic Technology Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-10-28
Anticipated expiration: 2032-02-18

Abstract

The utility model discloses a juxtaposition temperature fuse plug-in type pre-charging resistance, including metal casing, metal casing's inside is equipped with the bottom plate, the one end of first plug and the one end welding of second pin, the other end of second pin and the one end welding of resistance, the other end of resistance and the one end series connection of RY temperature fuse, the other end of RY temperature fuse and the one end fixed connection of first pin, the other end of second plug and the other end interlude of bottom plate bottom are connected, the utility model discloses the other end of resistance and RY temperature fuse welded connection, the other end of RY temperature fuse forms series circuit through first pin and second plug fixed connection, and bottom plate, curb plate and metal casing's inboard formation insulating layer avoid resistance and metal casing to contact, when the high temperature, RY temperature fuse cuts off the return circuit to improve security and stability, overall structure is simple, is convenient for installation and dismantlement, low in production cost.

Description

Plug-in type pre-charging resistor with temperature fuses arranged in parallel

Technical Field

The utility model relates to a technical field of resistor specifically is a juxtaposition temperature fuse plug-in type pre-charging resistor.

Background

The pre-charging resistor is used for limiting current by using a resistor, the resistor used here is the pre-charging resistor, the pre-charging resistor is connected in series in a charging loop in the pre-charging process, the size of the pre-charging current is limited, the phenomenon that a power device is damaged by the large charging current generated by the instant short circuit of power-on is avoided, the pre-charging resistor is widely applied to the new energy electric automobile industry particularly, the conventional pre-charging resistor is generally welded with a power line outside a pin, and the stability of the resistor is poor, so that the safety is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a juxtapose temperature fuse plug-in type pre-charging resistor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a juxtaposition temperature fuse plug-in type pre-charging resistor, includes metal casing, metal casing's inside is equipped with the bottom plate, the one end interlude of bottom plate is connected with first plug, the one end of first plug and the one end welding of second pin, the other end and the one end welding of resistance of second pin, the other end and the one end series connection of RY temperature fuse of resistance, the other end and the one end fixed connection of first pin of RY temperature fuse, the other end of first pin and the one end fixed connection of second plug, the other end and the other end interlude of bottom plate of second plug are connected.

As a preferred technical scheme of the utility model, metal casing's inboard all is equipped with the curb plate, metal casing's inner chamber is equipped with the thin cement filler, the equal fixedly connected with fixed block in both ends at metal casing top.

As a preferred technical scheme of the utility model, the mounting groove has all been seted up at the both ends of metal casing bottom, and two mounting grooves respectively with first plug and second plug phase-match.

As a preferred technical scheme of the utility model, bottom plate and curb plate are made by ceramic material or PCB material, metal casing is made by metal aluminium material.

As a preferred technical scheme of the utility model, the jack has all been seted up at the both ends of bottom plate, and two jacks and first plug and second plug phase-match.

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

the utility model discloses the other end and the RY temperature fuse welded connection of resistance, the other end of RY temperature fuse forms the series circuit through first pin and second plug fixed connection, and bottom plate, curb plate and metal casing's inboard formation insulating layer avoid resistance and metal casing contact, and when the high temperature, RY temperature fuse cuts off the return circuit to improve security and stability, overall structure is simple, is convenient for install and dismantle, low in production cost.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic overall structure of the present invention;

fig. 3 is a schematic structural diagram of the metal casing of the present invention.

In the figure: 1. a base plate; 2. a first plug; 3. a resistance; 4. RY temperature fuse; 5. a first pin; 6. a side plate; 7. a dilute cement fill; 8. a metal housing; 9. a fixed block; 10. mounting grooves; 11. a second plug; 12. a second lead.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, the utility model provides a juxtaposition temperature fuse plug-in type pre-charging resistor, including metal casing 8, metal casing 8's inside is equipped with bottom plate 1, the one end interlude of bottom plate 1 is connected with first plug 2, the one end of first plug 2 and the one end welding of second pin 12, the other end of second pin 12 and the one end welding of resistance 3, the other end of resistance 3 and the one end series connection of RY temperature fuse 4, the other end of RY temperature fuse 4 and the one end fixed connection of first pin 5, the other end of first pin 5 and the one end fixed connection of second plug 11, the other end of second plug 11 and the other end interlude of bottom plate 1 are connected.

Preferably, metal casing 8's inboard all is equipped with curb plate 6, and metal casing 8's inner chamber is equipped with rare cement filler 7, the equal fixedly connected with fixed block 9 in both ends at metal casing 8 top, and two fixed blocks 9 are installed respectively at the both ends at metal casing 8 top, and bottom plate 1, curb plate 6 and metal casing 8's inboard forms the insulating layer, avoids resistance 3 and metal casing 8 contact.

Preferably, mounting grooves 10 have all been seted up at the both ends of metal casing 8 bottom, and two mounting grooves 10 respectively with first plug 2 and second plug 11 phase-matches, first plug 2 and second plug 11 all extend to metal casing 8's outside through mounting groove 10.

Preferably, the bottom plate 1 and the side plate 6 are both made of a ceramic material or a PCB material, and the metal housing 8 is made of a metallic aluminum material.

Preferably, the jack has all been seted up at the both ends of bottom plate 1, and two jacks and

first plug

2 and 11 phase-matchs of second plug, are convenient for install the both ends in bottom plate 1 bottom respectively with first plug 2 and second plug 11.

When the fuse is used specifically, the bottom plate 1 is installed in the metal shell 8, the first plug 2 is installed in the jack at one end of the bottom plate 1, one end of the second pin 12 is welded with one end of the first plug 2, one end of the resistor 3 is welded with the other end of the second pin 12, the other end of the resistor 3 is welded with the RY temperature fuse 4, the other end of the RY temperature fuse 4 is fixedly connected with the second plug 11 through the first pin 5 to form a series circuit, the other end of the second plug 11 is installed in the jack at the other end of the bottom plate 1, an inner cavity of the metal shell 8 is provided with the dilute cement filler 7, the resistor 3 is covered, two fixing blocks 9 are respectively installed at two ends of the top of the metal shell 8, the bottom plate 1, the side plate 6 and the inner side of the metal shell 8 form an insulating layer, the resistor 3 is prevented from being contacted with the metal shell 8, the mounting grooves 10 are respectively formed at two ends of the bottom of the metal shell 8, the first plug 2 and the second plug 11 both extend to the outside of the metal shell 8 through the mounting grooves 10, when the temperature is too high, the RY temperature circuit is cut off, safety and stability are improved, the fuse 3 and the welding fixing structure is low in production cost, and the whole structure is simple and low in production.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a preset resistance of built-in temperature fuse plug-in type, includes metal casing (8), its characterized in that: the inside of metal casing (8) is equipped with bottom plate (1), the one end interlude of bottom plate (1) is connected with first plug (2), the one end of first plug (2) and the one end welding of second pin (12), the other end and the one end welding of resistance (3) of second pin (12), the other end and the one end series connection of RY temperature fuse (4) of resistance (3), the other end and the one end fixed connection of first pin (5) of RY temperature fuse (4), the other end and the one end fixed connection of second plug (11) of first pin (5), the other end and the other end interlude of bottom plate (1) of second plug (11) are connected.

2. The pre-charging resistor with a temperature fuse inserted in parallel according to claim 1, wherein: the inboard of metal casing (8) all is equipped with curb plate (6), the inner chamber of metal casing (8) is equipped with thin cement filler (7), the equal fixedly connected with fixed block (9) in both ends at metal casing (8) top.

3. The pre-charging resistor with a temperature fuse inserted in parallel according to claim 1, wherein: mounting grooves (10) have all been seted up at the both ends of metal casing (8) bottom, and two mounting grooves (10) respectively with first plug (2) and second plug (11) phase-match.

4. The pre-charging resistor with a temperature fuse inserted in parallel according to claim 1, wherein: the bottom plate (1) and the side plates (6) are both made of ceramic materials or PCB materials, and the metal shell (8) is made of metal aluminum materials.

5. The pre-charging resistor with a temperature fuse inserted in parallel according to claim 1, wherein: jacks are formed in two ends of the bottom plate (1), and the two jacks are matched with the first plug (2) and the second plug (11).