CN206921817U

CN206921817U - IGBT protectors

Info

Publication number: CN206921817U
Application number: CN201720018422.0U
Authority: CN
Inventors: 李俊永
Original assignee: Mitec Welding Equipment Shenzhen Co ltd
Current assignee: Mitec Welding Equipment Shenzhen Co ltd
Priority date: 2017-01-05
Filing date: 2017-01-05
Publication date: 2018-01-23
Anticipated expiration: 2027-01-05

Abstract

The utility model embodiment discloses a kind of IGBT protectors, and described device includes：Copper coin, potsherd, plastic casing, IGBT pipes and the curved tabletting of combined elastic；The IGBT pipes are in the plastic casing, there is insulated separation groove inside the plastic casing, the colelctor electrode of the IGBT pipes is arranged on the both sides of the insulated separation groove with emitter stage, the plastic casing is fixed on the copper coin by the curved tabletting of combined elastic, and potsherd is further fixedly arranged between the copper sheet and the plastic casing.Technical scheme provided by the utility model has the advantages of avoiding short circuit.

Description

IGBT protectors

Technical field

It the utility model is related to electric welding machine technical field, more particularly to IGBT protectors.

Background technology

With the development of welding technique, single tube insulated gate bipolar transistor (IGBT) inverter type welder starts more and more Popularization.Current existing single tube IGBT inversion welding machines radiator structure generally uses the following two kinds mode：1st, single tube IGBT is direct Fix on a heat sink；2nd, single tube IGBT first pads insulating materials and fixed again on a heat sink.Above two inversion welding machine is all deposited In defect：Between pin creep age distance deficiency, under the adverse circumstances such as humidity, dust, easily generation pin between arc discharge or Short circuit phenomenon.

Utility model content

The utility model embodiment technical problem to be solved is, there is provided a kind of IGBT protectors.Solves pin Between arc discharge or it is short-circuit the problem of.

In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of IGBT protectors, described device Including：Copper coin, potsherd, plastic casing, IGBT pipes and the curved tabletting of combined elastic；The IGBT pipes are in the plastic casing, institute Stating has insulated separation groove inside plastic casing, colelctor electrode and the emitter stage of the IGBT pipes are arranged on the two of the insulated separation groove Side, the plastic casing is fixed on the copper coin by the curved tabletting of combined elastic, also solid between the copper coin and the plastic casing Surely it is provided with potsherd.

Optionally, the plastic casing built-in electrical insulation separating tank size matches with IGBT prong sizes.

Optionally, multiple plastic casings can be installed on described copper coin.

Optionally, the plastic casing is the plastic casing of casting glue sealing.

Optionally, it is provided with heat-conducting silicone grease between the IGBT pipes and potsherd.

Optionally, it is provided with heat-conducting silicone grease between the potsherd and the copper coin.

Implement the utility model embodiment, have the advantages that：The technical solution of the utility model passes through plastic sheath The creep age distance between pin is added, so it has the advantages of avoiding arc discharge short circuit between pin.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of scheme of installation for IGBT protectors that the better embodiment of the utility model first provides.

Fig. 2 is a kind of exploded perspective view for IGBT protectors that the better embodiment of the utility model first provides.

Fig. 3 is the schematic diagram that the utility model installs a plastic casing.

Fig. 4 is the schematic diagram that the utility model installs a plastic casing.

Fig. 5 is the schematic diagram that the utility model installs two plastic casings.

Fig. 6 is the schematic diagram that the utility model installs two plastic casings.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Term " first ", " second " in specification and claims of the present utility model and above-mentioned accompanying drawing etc. are to be used for Different objects are distinguished, rather than for describing particular order.In addition, term " comprising " and " having " and their any deformations, It is intended to cover non-exclusive include.Such as contain the process of series of steps or unit, method, system, product or set Standby the step of being not limited to list or unit, but alternatively also including the step of not listing or unit, or alternatively Also include for other intrinsic steps of these processes, method, product or equipment or unit.

Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can wrap in conjunction with the embodiments It is contained at least one embodiment of the present utility model., which there is the phrase, in each position in the description to be each meant Identical embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art are explicit Ground and implicitly understand, embodiment described herein can be combined with other embodiments.

As depicted in figs. 1 and 2, a kind of IGBT protectors involved by the present embodiment, including：Copper coin 1, potsherd 2, modeling Magazine 3, IGBT pipes 4 and the curved tabletting 5 of combined elastic, in plastic casing 3, the inside of plastic casing 3 has exhausted the IGBT pipes 4 Edge separating tank 31, colelctor electrode and the emitter stage of IGBT pipes 4 are separately positioned on the both sides of insulated separation groove 31, described to be managed equipped with IGBT 4 plastic casing 3 is fixed on copper coin 1 with the curved tabletting 5 of combined elastic, and potsherd is also installed between plastic casing 3 and copper coin 1 2 insulation, it is described equipped with IGBT pipes 4 plastic casing 3 fixation copper coin 1 on after sealed with casting glue, be mounted with 4 on the copper coin 1 Individual plastic casing 3.

Optionally, the size of 3 built-in electrical insulation separating tank of plastic casing 31 matches with the pin size of IGBT pipes 4.

Optionally, multiple plastic casings 3 (can be according to the power selection quantity of machine) can be installed on copper coin 1.Above-mentioned copper The size of plate can select according to the size of the power of machine, such as selection 1 plastic casing of installation, as shown in Figure 3, Figure 4, also may be used 2 plastic casings are installed with selection, as shown in Figure 5, Figure 6.

It is a kind of from encapsulation IGBT protectors involved by the present embodiment, solve lacking for the creep age distance deficiency between pin Fall into；Under the adverse circumstances such as humidity, dust, the generation of arc discharge or short circuit phenomenon between pin is avoided.

Above disclosed is only a kind of the utility model preferred embodiment, can not limit this practicality with this certainly New interest field, one of ordinary skill in the art will appreciate that all or part of flow of above-described embodiment is realized, and according to The equivalent variations that the utility model claims are made, still fall within the scope that utility model is covered.

Claims

1. a kind of IGBT protectors, it is characterised in that described device includes：Copper coin, potsherd, plastic casing, IGBT pipes and group Close the curved tabletting of elasticity；The IGBT pipes have insulated separation groove, the IGBT in the plastic casing inside the plastic casing The colelctor electrode of pipe is arranged on the both sides of the insulated separation groove with emitter stage, and the plastic casing is fixed by the curved tabletting of combined elastic On the copper coin, potsherd is further fixedly arranged between the copper coin and the plastic casing.

2. IGBT protectors according to claim 1, it is characterised in that the plastic casing built-in electrical insulation separating tank size Match with IGBT prong sizes.

3. IGBT protectors according to claim 1, it is characterised in that multiple plastics are installed on described copper coin Box.

4. according to the IGBT protectors described in claim any one of 1-3, it is characterised in that the plastic casing is that casting glue is close The plastic casing of envelope.

5. according to the IGBT protectors described in claim any one of 1-3, it is characterised in that IGBT pipe and potsherd it Between be provided with heat-conducting silicone grease.

6. according to the IGBT protectors described in claim any one of 1-3, it is characterised in that the potsherd and the copper coin Between be provided with heat-conducting silicone grease.