CN207011200U

CN207011200U - A kind of brush DC switch

Info

Publication number: CN207011200U
Application number: CN201721012240.9U
Authority: CN
Inventors: 吴世清
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-14
Filing date: 2017-08-14
Publication date: 2018-02-13
Anticipated expiration: 2027-08-14

Abstract

A kind of brush DC switch, including pedestal, spacing body, fin, the upper circuit board with electrical connection and lower circuit board, the upper circuit board is provided with heater element, upper circuit board is located at below Chuck top plane, upper circuit board and lower circuit board are between the upper and lower every simultaneously relative orientation in pedestal, upper circuit board is limited in pedestal by the spacing body, and the radiation fin cover is connected to top surface on spacing body, and the upper circuit board with electrical connection is connected with lower circuit board by hard wire or cord.The design has the advantages of assembling is simple, good heat dissipation effect, overall space are made good use of.

Description

A kind of brush DC switch

Technical field

It the utility model is related to a kind of brush DC switch.

Background technology

Nowadays existing electric tool switch needs to be powered for a long time to carry out the overall work of electric tool, and for a long time Operation it is higher for the cooling requirements of switching circuit board, existing electric tool switch majority is two pieces of circuits on the market The design that plate links into an integrated entity, its volume is larger, causes the volume of global switch big, it is difficult to use, meanwhile, with other parts Overall space is also in a disguised form enhanced using poor, cost after assembling, in addition, the design of integral type on radiating effect also not to the utmost such as People's will, due to the presence of heat dissipation problem, after working long hours, circuit board is also more easy to break down, the raising of fault rate Further lift its use cost.

The content of the invention

The purpose of this utility model, which is to provide, a kind of assembles high straight of simple, good heat dissipation effect, integral space utilization ratio Flow brushless switch.

In order to solve the above-mentioned technical problem, the utility model uses following technical scheme：A kind of brush DC switch, including Pedestal, spacing body, fin, the upper circuit board with electrical connection and lower circuit board, the upper circuit board are provided with heating member Part, upper circuit board are located at below Chuck top plane, and upper circuit board and lower circuit board are located at pedestal every simultaneously relative orientation between the upper and lower It is interior.

Further, upper circuit board is limited in pedestal by the spacing body, and the radiation fin cover is connected to top surface on spacing body.

Further, the upper circuit board with electrical connection and lower circuit board are connected by hard wire or cord Connect.

The beneficial effects of the utility model are：Compared to existing electric tool technology, the utility model passes through double circuit Space availability ratio caused by the design of plate relative orientation solves the circuit module design of integral type in the prior art is poor, radiating effect The problem of rate is low, alleviate due to radiating rate it is slow caused by work long hours after board failure rate lifted the problem of, and Design is also more reasonable, and space utilization is more abundant.

Brief description of the drawings

Fig. 1 is a kind of configuration schematic diagram of brush DC switch.

The parts title of numbering expression is as follows in accompanying drawing：1st, pedestal；3rd, upper circuit board；4th, spacing body；5th, fin；9th, under Circuit board.

Embodiment

In order that obtaining the technological means that the utility model is realized, character of innovation is apparent to function, below will be further Illustrate the utility model.

As shown in figure 1, the utility model brush DC switch a kind of embodiment, including pedestal 1, spacing body 4, fin 5, Upper circuit board 3 and lower circuit board 9 with electrical connection, the upper circuit board 3 are provided with heater element, upper circuit board 3 Below the top plan of pedestal 1, upper circuit board 3 and lower circuit board 9 are between the upper and lower every simultaneously relative orientation in pedestal 1.

The utility model substitutes two pieces of the prior art by the upper circuit board 3 and lower circuit board 9 for separating setting up and down Or the integrated circuit plate module that polylith circuit board is formed, the design of the unitary module circuit under prolonged condition of work Module integrally generate heat more lasting concentration and heating temp it is higher, the utility model circuit board separately separates and by fin 5 The design to be radiated alleviates the problem of slow circuit module radiating of the prior art, radiating effect difference, and then also solves Because caused by weak heat-dissipating integrated circuit plate module under conditions of working long hours easily breaks down and is difficult to change the problem of, At the same time, the compartmentalized design of upper circuit board 3 and lower circuit board 9 also takes full advantage of the redundant space in pedestal 1, improves base The space availability ratio of seat 1, and reduce the use of raw material, assembling is also more simple and reliable, reduces enterprise's manufacturing cost The use cost of user is also reduced simultaneously.

In the present embodiment, upper circuit board 3 is limited in pedestal 1 by the spacing body 4, and the lid of fin 5 is connected to spacing body 4 Upper top surface, the upper circuit board 3 with electrical connection are connected with lower circuit board 9 by hard wire or cord.Spacing body 4 is not Only ensure that electric leakage electric conduction phenomena will not occur with fin 5 for the internal circuit of pedestal 1, it is also that upper circuit board 3 is spacing in pedestal, make Upper and lower and horizontal direction movement will not occurs in it, ensure the connective stability of global switch, and then further lifts overall open The connected mode of the service life of pass, flexible cord or rigid line can flexibly be carried out when needing the electric wire of differing texture according to actual conditions Use, the inconvenience for avoiding the switch of singular association form from bringing when in use.

Although the utility model is disclosed as above with specific embodiment, but it is not limited to the utility model, appoints What those skilled in the art, in the case where not departing from spirit and scope of the present utility model, can still make a little change with Retouching, therefore the scope of protection of the utility model should be defined depending on the scope institute defender of appended claims.

Claims

A kind of 1. brush DC switch, it is characterised in that：Including pedestal (1), spacing body (4), fin (5), have electrical connection close The upper circuit board (3) and lower circuit board (9) of system, the upper circuit board (3) are provided with heater element, and upper circuit board (3) is located at base Below seat (1) top plan, upper circuit board (3) and lower circuit board (9) are between the upper and lower every simultaneously relative orientation in pedestal (1).
A kind of 2. brush DC switch according to claim 1, it is characterised in that：The spacing body (4) is by upper circuit board (3) It is limited in pedestal (1), fin (5) lid is connected to top surface on spacing body (4).
A kind of 3. brush DC switch according to claim 2, it is characterised in that：The upper electricity with electrical connection Road plate (3) is connected with lower circuit board (9) by hard wire or cord.