JPH0361348U

JPH0361348U -

Info

Publication number: JPH0361348U
Application number: JP12305289U
Authority: JP
Priority date: 1989-10-20
Filing date: 1989-10-20
Publication date: 1991-06-17

Description

[Brief explanation of drawings]

第１図はこの考案の実施例にかかる締付け装置
の側面図、第２図は第１図のＡ方向より見る平面
図、第３図は平型半導体スタツクの構成を示す側
面図、第４図は第３図のＢ方向より見る平面図、
第５図は従来の締付け装置の構成例を示す側面図
である。１……平型半導体スタツク、２……平型半導体
素子、３……冷却体、４Ａ，４Ｂ……絶縁板、５
……皿バネ、６……スタツク部、７……締付けボ
ルト、８……貫通孔、９Ａ，９Ｂ……側板、１０
Ａ，１０Ｂ……締付けナツト、１１，１１０……
締付け装置、１２……大型プレス、１３……プレ
スシリンダ、１４……受け台、１５……連結ボル
ト、１６……連結ナツト、１７……受け板、１８
……油圧シリンダ、１９……油圧ホース、２０…
…油圧ポンプ。 FIG. 1 is a side view of a tightening device according to an embodiment of this invention, FIG. 2 is a plan view seen from direction A in FIG. 1, FIG. 3 is a side view showing the configuration of a flat semiconductor stack, and FIG. is a plan view seen from direction B in Figure 3,
FIG. 5 is a side view showing an example of the configuration of a conventional tightening device. DESCRIPTION OF SYMBOLS 1... Flat semiconductor stack, 2... Flat semiconductor element, 3... Cooling body, 4A, 4B... Insulating plate, 5
... Disc spring, 6 ... Stack part, 7 ... Tightening bolt, 8 ... Through hole, 9A, 9B ... Side plate, 10
A, 10B...Tightening nut, 11,110...
Tightening device, 12... large press, 13... press cylinder, 14... cradle, 15... connecting bolt, 16... connecting nut, 17... receiving plate, 18
...Hydraulic cylinder, 19...Hydraulic hose, 20...
…Hydraulic pump.

Claims

[Scope of utility model registration request]

A cooling body made of a metal body is sandwiched between a plurality of flat semiconductor elements and stacked in series, an insulating plate and a disc spring are stacked on one end, and another insulating plate is stacked on the other end. A stack part to be formed, a tightening bolt made of double-threaded bolts for tightening this stack part from both ends, and a side plate made of a rectangular flat plate and having through holes for the tightening bolts at the four corners and sandwiching both ends of the stack part. The tightening device for a flat semiconductor stack is constructed by passing the tightening bolt through a through hole in the side plate and fitting a tightening nut into each end to tighten the stack part, the device comprising a pair of bolts with heads. a connecting bolt, a pair of connecting nuts that connect the connecting bolt and the tightening bolt by fitting them on both sides, a receiving plate made of a flat plate and having a through hole through which the pair of connecting bolts pass, and a hydraulic pump. It consists of a hydraulic cylinder that extends in the axial direction and can be pushed to a predetermined pressure by hydraulic pressure transmitted through a hydraulic hose, and each of the pair of connecting nuts has one end at a diagonal position of the flat semiconductor stack. The tightening bolt and the connecting bolt are connected by fitting into the ends of the pair of opposing tightening bolts, and fitting the other end into the end of the connecting bolt passed through the through hole of the receiving plate. At the same time, the hydraulic cylinder is interposed between the receiving plate and the side plate, and the operation of the hydraulic pump pushes the side plate and tightens the stack part to a predetermined pressure, and the tightening nut loosened by this pressure is tightened. A tightening device for a flat semiconductor stack, characterized in that the stack portions are tightened with a predetermined pressure by lightly tightening each part and then removing the tightening device from the flat semiconductor stack.