CN201608639U - DCDC converter output terminal sealing and protecting structure used for hybrid cars - Google Patents

Abstract

The utility model discloses a DCDC converter output terminal sealing and protecting structure used for hybrid cars which includes a DCDC converter and an output terminal. The DCDC converter is provided with an inner notch at the part provided with the output terminal; an output terminal box is embedded in the inner notch; the output terminal is a semi-sealed box body encircled by a pedestal and three baffles with an upper opened surface and an opened outer side surface; the pedestal is fixed with the bottom part of the inner notch on the DCDC converter; the three baffles respectively shield the left side surface, the right side surface and the inner side surface of the inner notch; moreover, through holes are arranged on the baffles corresponding to the copper bar stretching position of the output terminal of the DCDC converter; the output terminal stretches out of the output terminal box from the through holes and is connected with an external wire beam by a fixed nut; and an 'L'-shaped bin cover is arranged above the inner notch of the DCDC converter to cover the opening of the output terminal box. The structure can realize to protect and seal the output terminal, play the role of electromagnetic shielding and reduce space occupancy by separating the output part from the inside of a DC/DC system.

Description

A kind of hybrid vehicle dcdc converter lead-out terminal sealing protection structure

Technical field

The utility model relates to field of power electronics, relates in particular to a kind of hybrid vehicle dcdc converter technology.

Background technology

Along with the growing tension of the energy, energy-saving and emission-reduction also become people's new focus after dinner gradually.And automobile is as the rich and influential family of energy resource consumption, and is closely related with people's livelihood, environment, development especially.The appearance of hybrid vehicle for vehicle energy saving provides a kind of new developing direction, has become the object of concern gradually.

Hybrid vehicle is different with general automobiles, it needs a dcdc converter that changes to low tension battery from high tension battery, the characteristics of this dcdc converter are that input range is wide, and output current is big, and power is big, its general output current is between 100A～150A, this just has special requirement to its lead-out terminal, to reach certain degree of protection, and can be heat-resisting (because the electric current on the output line is very big, meeting is with the form loss of heat), and with low cost.

The lead-out terminal of dcdc converter is to adopt bolt to connect on some mixed motor-car at present, lead-out terminal is directly extended to the external cabling of DC/DC converter, this form is to not effectively protection of terminal, there is not strict sealing, electromagnetism, slag dirt that lead-out terminal is subject to external environment condition disturb, and influence result of use and useful life.And in the external cabling of DC/DC converter, it is bigger to take up room, and is unfavorable for the saving to the automobile confined space.

The utility model content

The utility model just provides a kind of hybrid vehicle dcdc converter lead-out terminal sealing protection structure, by coming output and DC/DC internal system are isolated, can realize protection and sealing, play the effect of electromagnetic shielding, and reduce taking of space lead-out terminal.

The technical solution of the utility model is as follows:

A kind of hybrid vehicle dcdc converter lead-out terminal sealing protection structure, it comprises the lead-out terminal of dcdc converter and dcdc converter.

Described dcdc converter is arranging that the lead-out terminal place has an inner recess, and embedding in described inner recess has a lead-out terminal box.

Described lead-out terminal box is above one that is surrounded by pedestal and three baffle plates and the semiclosed box body of lateral surface opening.

The bottom of the inner recess on described pedestal and the dcdc converter is fixed, and its effect is be used for whole lead-out terminal box fixing.

Described three baffle plates cover left side, right side and inboard three faces of inner recess respectively, are connected with dcdc converter, thereby play sealing function to inner recess.And the copper bar extended position corresponding to the lead-out terminal of dcdc converter has via hole on baffle plate, is used for the lead-out terminal copper bar of dcdc converter inside is drawn.The copper bar of lead-out terminal extend out in the lead-out terminal box by via hole, is connected with exterior strands by hold-down nut.

" L " shape Cang Gai is set above the inner recess of dcdc converter, the opening surface of lead-out terminal box is covered.

The utlity model has following tangible advantage:

1, owing to adopted the version that embeds the inner recess of DC/DC converter with the lead-out terminal box, the components and parts and the external environment condition of isolating DC/DC converter inside by the lead-out terminal box, prevent that outer goods is (as instrument, screw etc.) drop in inside, avoid causing short circuit, also play the dustproof effect simultaneously.The copper bar of lead-out terminal is drawn out in the lead-out terminal box is connected with the car load wire harness, and by Cang Gai sealing lead-out terminal box, effectively lead-out terminal and external environment condition are completely cut off again, can prevent to export between the both positive and negative polarity and be short-circuited, produce spark, can play the effect of electromagnetic shielding again.

2, adopt set bolt to fix the copper bar and the exterior strands of internal output terminal, because output current is bigger, the existence of set bolt just can guarantee effective connection of inside and outside wiring.

3, because the lead-out terminal box is embedded in DC/DC converter inside, can save space outerpace, more convenient its layout onboard.

4, the utility model is simple in structure, and is with low cost, easy to use, is specially adapted to the big particular application of this output current of hybrid vehicle.

Description of drawings

Fig. 1 is the structural representation of lead-out terminal box of the present utility model.

Fig. 2 has drawn the structural representation of lead-out terminal for the lead-out terminal box.

Fig. 3 is the connection diagram of lead-out terminal and wire harness in the lead-out terminal box.

Fig. 4 is embedded in the structural representation of DC/DC converter inside for the lead-out terminal box.

Fig. 5 is the structural representation after whole dcdc converter lead-out terminal sealing protection structure is made up.

Embodiment

For ease of the utility model is further understood, now in conjunction with the accompanying drawings the utility model is described in detail.

Referring to Fig. 4, this dcdc converter lead-out terminal sealing protection structure is to arrange that at dcdc converter the lead-out terminal place offers an inner recess 2, and embedding in inner recess 2 has a lead-out terminal box 3.

Figure 1 shows that the structural representation of lead-out terminal box, scheme as can be seen thus that lead-out terminal box 3 is to be made of pedestal 31, baffle plate 32, via hole 33.

Wherein the effect of pedestal 31 is one side supports as whole box body, on the other hand as fixing.Four screw fixed hole positions are arranged above it, can be fixed together by inner recess 2 bottoms of it and DC/DC converter.

Baffle plate 32 has three of the inboards on left side, right side, surrounds above one with pedestal 31 and the semiclosed box body of lateral surface opening.

In conjunction with Fig. 4 as seen, after this lead-out terminal box 3 is embedded in the inner recess 2 of DC/DC converter, three baffle plates cover left side, right side and inboard three faces of inner recess respectively, be connected with dcdc converter, thereby play sealing function to inner recess, the components and parts and the external environment condition of isolating the DC/DC internal system, and surround the copper bar of drawing of internal output terminal.

In conjunction with Fig. 2, Fig. 4 as seen, copper bar extended position corresponding to the lead-out terminal of dcdc converter on baffle plate 32 has via hole 33, be used for the copper bar of the lead-out terminal 6 of dcdc converter inside is drawn, the copper bar of lead-out terminal 6 extend out in the lead-out terminal box 3 by via hole, exterior strands 4 overlays on the lead-out terminal 6, be fixed with hold-down nut 7, realization is connected with exterior strands 4.

Referring to Fig. 5, after lead-out terminal 6 and car load wire harness 4 connect, cover the opening surface of lead-out terminal box 3 from the top with the storehouse of one " L " shape lid 5, just lead-out terminal 3 is completely cut off with external environment condition and open, prevent to export between the both positive and negative polarity and be short-circuited, produce spark, can play the effect of electromagnetic shielding again.

Because lead-out terminal box 3 itself needs insulation, so the employing bakelite is a material, can not only guarantee electrical apparatus insulation like this, and cheap.

More than the utility model is described in detail, used specific case herein principle of the present utility model and execution mode set forth, the explanation of above embodiment just is used for help understanding core concept of the present utility model; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims (1)

1. hybrid vehicle dcdc converter lead-out terminal sealing protection structure, it comprises the lead-out terminal of dcdc converter and dcdc converter; It is characterized in that:

Described dcdc converter is arranging that the lead-out terminal place has an inner recess, and embedding in described inner recess has a lead-out terminal box;

Described lead-out terminal box is above one that is surrounded by pedestal and three baffle plates and the semiclosed box body of lateral surface opening, the bottom of the inner recess on described pedestal and the dcdc converter is fixed, three baffle plates cover left side, right side and inboard three faces of inner recess respectively, and the copper bar extended position corresponding to the lead-out terminal of dcdc converter has via hole on baffle plate, the copper bar of lead-out terminal extend out in the lead-out terminal box by via hole, is connected with exterior strands by hold-down nut;

" L " shape Cang Gai is set above the inner recess of dcdc converter, the opening surface of lead-out terminal box is covered.

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