CN203242611U

CN203242611U - Fixed assembly for transistors

Info

Publication number: CN203242611U
Application number: CN 201320235805
Authority: CN
Inventors: 武志强; 蒋立平
Original assignee: HANGZHOU COBER TECHNOLOGY Co Ltd
Current assignee: HANGZHOU COBER TECHNOLOGY Co Ltd
Priority date: 2013-05-03
Filing date: 2013-05-03
Publication date: 2013-10-16
Anticipated expiration: 2023-05-03

Abstract

The utility model discloses a fixed assembly for transistors, belonging to the technical field of electric vehicle controllers. The fixed assembly for the transistors comprises transistors, a circuit board, a heat dissipation base plate, jump rings and insulated thermal conductive sheets, wherein the circuit board and the heat dissipation base plate are parallelly arranged, the heat dissipation base plate is provided with a plurality of heat dissipation seats, a plurality of the transistors are close to side surfaces of the heat dissipation seats in order and fixedly connected to the circuit board, the insulated thermal conductive sheet are arranged between each transistor and each side surface of the heat dissipation seat, the jump rings are arranged between the heat dissipation base plate and the circuit board, and end parts of the jump rings are springs which perform overall compressed fixing for the plurality of the transistors along the side surfaces of the heat dissipation seats. According to the utility model, a set of the jump ring springs can compress and fix a whole row of the transistors, reasonably utilize the integrated jump rings to a great extent, thereby simplifying an internal structure, and can achieve a heat dissipation effect and meanwhile effectively fasten the transistors.

Description

A kind of transistor fixation kit

Technical field

The utility model belongs to the electric vehicle controller technical field, particularly relates to a kind of transistor fixation kit.

Background technology

Electric vehicle controller is startup, operation, advance and retreat, the speed of controlling the motor vehicle motor, stop and the kernel control chip of other electronic devices of motor vehicle.At present, the kind of electric vehicle controller is varied, for be widely used with human daily life in motor vehicle, its controller has strict demand, needs that fastness is high, thermal diffusivity is good, like this ability long service life.

If firm not, its shockproof function is just bad, can be because of vibrations so that device is loosening until controller is malfunctioning in the use procedure; If thermal diffusivity is good not, the controller long-term work, temperature raises and surpasses the peak of components and parts, and components and parts damage, thereby cause controller undesired.Illustrate, the radiator that traditional electric vehicle controller adopts is bar shaped, mosfet transistor is installed in the another side of radiator, and another side is fixed on the inwall of controller housing by screw, one comes screw to pitch easily through vibrations, two come radiator and shell gap large, and heat conduction is than low, and thermal diffusivity is bad.

Summary of the invention

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of transistor fixation kit that strengthens heat-sinking capability and fastness.

For achieving the above object, the utility model provides following technical scheme: a kind of transistor fixation kit, comprise transistor, circuit board, radiating bottom plate, jump ring, the insulating heat-conductive sheet, it is characterized in that: described circuit board and radiating bottom plate be arranged in parallel, radiating seat is set on the radiating bottom plate, a plurality of transistors are close to the radiating seat side and are arranged in order and are fixedly connected on circuit board, between each transistor AND gate radiating seat side the insulating heat-conductive sheet is set, it is shell fragment that jump ring and its end are set between radiating bottom plate and wiring board, and shell fragment carries out integrated pressure along the radiating seat side to a plurality of transistors and fastens.

The utility model further is set to: described radiating seat forms independent cavity take per two as unit between radiating bottom plate and wiring board; Jump ring places in the independent cavity, and its two ends are the symmetrical expression shell fragment and are fixed on the radiating bottom plate that two shell fragments compress respectively the transistor on the corresponding radiating seat.

The utility model further is set to: described shell fragment is split type multiple tooth structure, and each gear piece is fixed the transistor of radiating seat side respectively.

The utility model further is set to: location hole and screw thread fixing hole are set on the described jump ring bottom surface, the anchor point corresponding with location hole and the screw corresponding with fixing hole are set on the radiating bottom plate, both fix by screw.

The utility model further is set to: described transistor is mosfet transistor.

By above technical scheme: radiating seat will be divided into a plurality of individual cavity between wiring board and the radiating bottom plate, a plurality of transistors are arranged in order along two radiating seat sides in each individual cavity, between each transistor AND gate radiating seat side the insulating heat-conductive sheet is set; Jump ring is the two-part shell fragment, and its base plate is fixed in radiating bottom plate by screw, and the two-part shell fragment is fixed two row's transistors respectively; Can in independent cavity, be fixed two row's transistors by one group of jump ring shell fragment of above structure, reasonably utilize the integrated cavity inside structure of having simplified of jump ring on the large degree, when reaching radiating effect, can effectively carry out fastening to transistor simultaneously.

Description of drawings

Fig. 1 is the structural representation of the utility model specific embodiment;

Fig. 2 is the end view of the utility model specific embodiment;

Fig. 3 is that the jump ring of the utility model specific embodiment cooperates schematic diagram with radiating bottom plate;

Fig. 4 is the clip spring structure schematic diagram of the utility model specific embodiment.

Embodiment

Be described further with reference to Fig. 1,2,3,4 couples of a kind of transistor fixation kit embodiment.

Involved transistor is mosfet transistor in the present embodiment, and a kind of mosfet transistor fixation kit comprises circuit board 1, radiating bottom plate 2, mosfet transistor 3, jump ring 4, insulating heat-conductive sheet 5, radiating seat 6; Circuit board 1 be arranged in parallel with radiating bottom plate 2, radiating seat 6 is set on the radiating bottom plate 2, a plurality of mosfet transistors 3 are close to radiating seat 6 sides and are arranged in order and are fixedly connected on circuit board 1, between each mosfet transistor 3 and radiating seat 6 sides insulating heat-conductive sheet 5 is set, it is shell fragment 41 that jump ring and its end are set between radiating bottom plate 2 and wiring board 1, and shell fragment 41 carries out integrated pressure along the radiating seat side to a plurality of mosfet transistors 3 and fastens.

The radiating seat 6 of present embodiment forms a plurality of independent cavitys take per two as unit between radiating bottom plate 2 and wiring board 1; Jump ring 4 places in the independent cavity, and its two ends are symmetrical expression shell fragment 41 and are fixed on the radiating bottom plate 2 that two shell fragments 41 compress respectively the mosfet transistor 3 on the corresponding radiating seat 6.

The shell fragment 41 of present embodiment is split type multiple tooth structure, and each gear piece is fixed the mosfet transistor 3 of radiating seat 6 sides respectively.Location hole 42 and screw thread fixing hole 43 are set on described jump ring 4 bottom surfaces, the anchor point 21 corresponding with location hole 42 and the screw 22 corresponding with screw thread fixing hole 43 are set on the radiating bottom plate 2, jump ring 4 is fixed by screw 7 with radiating bottom plate 2.

Describe according to above embodiment, many feature and advantage of the present utility model are apparent, and therefore, claims are intended to cover all these feature and advantage of the present utility model.In addition because numerous modifications and variations all are easy to expect for a person skilled in the art, so the utility model should not be limited to as illustrated in and definite structure and the operation described.Thus, all suitable modifications and equivalent can think to belong to scope of the present utility model.

Claims

1. transistor fixation kit, comprise transistor, circuit board, radiating bottom plate, jump ring, insulating heat-conductive sheet, it is characterized in that: described circuit board and radiating bottom plate be arranged in parallel, radiating seat is set on the radiating bottom plate, a plurality of transistors are close to the radiating seat side and are arranged in order and are fixedly connected on circuit board, between each transistor AND gate radiating seat side the insulating heat-conductive sheet is set, it is shell fragment that jump ring and its end are set between radiating bottom plate and wiring board, and shell fragment carries out integrated pressure along the radiating seat side to a plurality of transistors and fastens.

2. a kind of transistor fixation kit according to claim 1, it is characterized in that: described radiating seat forms independent cavity take per two as unit between radiating bottom plate and wiring board, jump ring places in the independent cavity and its two ends are the symmetrical expression shell fragment and are fixed on the radiating bottom plate that two shell fragments compress respectively the transistor on the corresponding radiating seat.

3. a kind of transistor fixation kit according to claim 1 and 2, it is characterized in that: described shell fragment is split type multiple tooth structure, and each gear piece is fixed the transistor of radiating seat side respectively.

4. a kind of transistor fixation kit according to claim 1, it is characterized in that: described jump ring arranges location hole and fixing hole on the bottom surface, the anchor point corresponding with location hole and the screw corresponding with the screw thread fixing hole are set on the radiating bottom plate, and both fix by screw.

5. a kind of transistor fixation kit according to claim 1 and 2 is characterized in that described transistor is mosfet transistor.