CN201115101Y

CN201115101Y - Electric car controller

Info

Publication number: CN201115101Y
Application number: CNU200720097368XU
Authority: CN
Inventors: 孔昭松
Original assignee: SONGZHENG ELECTRONICS CO Ltd TIANJIN CITY
Current assignee: SONGZHENG ELECTRONICS CO Ltd TIANJIN CITY
Priority date: 2007-09-06
Filing date: 2007-09-06
Publication date: 2008-09-10
Anticipated expiration: 2017-09-06

Abstract

The utility model discloses an electric vehicle controller and aims at providing an electric vehicle controller which is characterized by good waterproof performance, stable installation, convenient maintenance and being favorable for the heat dissipation of power tubes. The electric vehicle controller comprises an integral shell, an end cover and a circuit board; wherein, an elastic inner pad which clings to an end face of the shell is arranged between the shell and the end cover; an external surface of the shell is provided with a screw hole with an opening outwards; the shell is also internally provided with a stripy wedge object which is used for clamping and fixing the power tube on the circuit board on the shell. The electric vehicle controller is characterized by better closed waterproof performance, good heat dissipating effect, more convenient maintenance and saving the production cost, thus being an update product of the present controller.

Description

Controller for electric vehicle

Technical field

The utility model belongs to a kind of controller of electric automobiles, is to belong to a kind of controller for electric vehicle more specifically.

Background technology

At present, electric motor car comprises electric bicycle, electro-tricycle, battery-operated motor cycle etc., and controller need have good waterproof, shockproof, heat dispersion as the control maincenter part of electric motor car.If poor sealing, the controller for electric vehicle water inlet makes the components and parts short circuit of circuit board malfunctioning, causes controller to damage; In the quality problems feedback in the electric motor car market of reality, because the ratio that waterproof problem causes controller for electric vehicle to damage is over half, special in rainy and moist southern area, the waterproof problem of controller for electric vehicle is particularly outstanding.Thus, the complete water proofing property of current controller for electric vehicle still is a technical barrier of not capturing in industry, and this becomes a bottleneck problem that influences the electric motor car industry development.

The waterproof construction of controller for electric vehicle of the prior art is designed to following several:

1. complete encapsulating is sealed in the entire circuit plate among the housing with the form of complete encapsulating together with circuit element exactly, does like this to reach complete good waterproof effect, but do not possess like this do over again, reprocess, maintainability, simultaneously, the glue consumption of perfusion is very big, is unfavorable for saving production cost.

2. end caps encapsulating is done like this and can not be reached complete good waterproof effect, because the influence of operative skill if encapsulating is inhomogeneous, short Jiao Chu occurs, will leak, and circuit board element is damaged.

3. end caps adopts flat rubber cushion, this mode is waterproof fully, in the processing of reality, because the restriction of technology, the processing of section bar (promptly being housing) is not meticulous, at end face not only burr can appear, but also can bring end face not neat or have uneven, will cause section bar (promptly being housing) and the assembling of flat rubber cushion like this after, because of ductility, the scalability of traditional flat rubber cushion bad, bring between end face and the flat rubber cushion sealing bad thus, the slit is arranged, leak easily; And with the fastening end cap of screw the time, several screw unbalance stress also warpage can occur between the end cap peace rubber cushion, make section bar end face and rubber cushion that the slit be arranged, and cause leaking.

In addition, also have housing to be made of loam cake and drain pan two parts, the space is left in the junction, causes poor sealing, and steam is easy to enter in the cavity at circuit board place by this space; In addition, plastic end cap originally in the screw hole place embrittlement of end cap, is unfavorable for waterproof and sealing easily in throwing the screw assembling process into.

In a word, the structure of several water-tights of this of controller for electric vehicle of the prior art can not well reach than the satisfactory sealing waterproof effect, is the more scabrous technical problem of controller for electric vehicle technical field.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of good seal performance is provided, firm, easy to maintenance, as to help power tube heat radiation controller for electric vehicle is installed.

The utility model solves its technical problem and takes following technical scheme to realize: a kind of controller for electric vehicle, comprise integral housing, end cap, circuit board, also be provided with pad in the elasticity between described housing and the end cap, pad is close to described housing end face in the described elasticity, the outer surface of described housing is provided with installing port screw hole outwardly, also is provided with strip wedge shape object in the described housing, and described strip wedge body is used for the chucking of the power tube on the described circuit board is fixed on described housing.

The utility model can also be taked following technical scheme: the correspondence position of the outer surface screw hole of pad and end cap and integral housing is provided with screw hole in the described elasticity; The body shape of described end cap is for directly tabular, and the bottom, outer end of end cap is provided with the base of band installing hole; Pad is made for expanded material in the described elasticity; Be provided with glue layer between pad and the described end cap in the described elasticity; Be provided with glue layer between pad and the described housing end face in the described elasticity; The cross section of described strip wedge shape object be shaped as a kind of in " 7 type ", " del type ", " the T type " or " trapezoidal ".

The utility model compared with prior art has significant advantage and beneficial effect, is embodied in the following aspects:

1. the utility model adopts pad in the elasticity, pad adopts novel expanded material to constitute in the elasticity, because its elasticity is big, retractility is strong, and sealing, damping, anti-skidding effect are very superior, so can be good at filling up the gap between end cap and the housing end face, thereby realize good sealed waterproof effect.

2. the straight tabular end cap of the utility model employing supports and consolidates pad in the elasticity, because the intensity of end cap big (is the metal quality as end cap) can make the interior pad of elasticity be fitted in very closely on the end face of housing.Simultaneously, adopt the big end cap of intensity, prevent from the screw precession process end cap twisted and split, easy and simple to handle, for ease of maintenaince, reduce the complexity of technology, and saved cost.

3. in elasticity, be provided with glue layer between the end face of pad and housing, the interior pad of elasticity is bonded on the end face fully, completely cut off steam and infiltrated inside cavity, guaranteed waterproof effect; Glue layer between end cap and the interior pad helps the sealing of the two simultaneously, the accurate location of the screw hole of end cap and interior pad when realizing installing simultaneously.

4. the card spiral-lock in the utility model employing strip gap is beneficial to the sequential output of electric wire in the line outlet end cap.

5. the base of the band installing hole of end cap bottom helps controller for electric vehicle is fixed in the electric motor car, has reduced the defective of the frequent vibrations that fixedly do not bring.

Description of drawings

Fig. 1 is a schematic cross-section of the present utility model;

Fig. 2 is the structural representation that has pad 4 in the line outlet elasticity of the present utility model;

Fig. 3 is the utility model end cap 5 schematic diagrames;

Fig. 4 is the structural representation that the utility model has the end cap 2 of line outlet;

Fig. 5 is the utility model assembling schematic diagram;

Fig. 6 is the structural representation of strip wedge shape object of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model embodiment is further described:

Referring to Fig. 1-6:1 is screw hole on the housing, the 2nd, have the end cap of line outlet, and the 3rd, strip gap card, the 4th, have pad in the elasticity of line outlet, the 5th, end cap, the screw hole on 6 end caps, the 7th, pad in the elasticity, the 8th, line outlet, the 9th, housing, 10, the 11st, the end face of housing, the 12nd, the line outlet of pad in the elasticity, the 13rd, circuit board, the 14th, the power tube on the circuit board, the 15th, strip wedge shape object, the 16th, base, the 17th, installing hole.

The utility model solves its technical problem and takes following technical scheme to realize: a kind of controller for electric vehicle, comprise integral housing 9,

end cap

2 and 5, circuit board 13, also be provided with

pad

4,7 in the elasticity between described housing 9 and the

end cap

2,5,

pad

4,7 is close to described housing 10,11 end faces in the described elasticity, the outer surface of described housing 9 is provided with installing port screw hole 1 outwardly, also be provided with strip wedge shape object 15 in the described housing 9, described strip wedge shape object 15 is used for 14 chuckings of the power tube on the described circuit board 13 are fixed on described housing 9.

The utility model can also be taked following technical scheme: the correspondence position of the outer surface screw hole 1 of

pad

4,7 and

end cap

2,5 and integral housing is provided with screw hole 6 in the described elasticity; The body shape of described

end cap

2,5 is for directly tabular, and the bottom, outer end of

end cap

2,5 is provided with the base 16 of band installing hole 17;

Pad

4,7 is made for expanded material in the described elasticity; Be provided with glue layer between

pad

4,7 and the described

end cap

2,5 in the described elasticity; Be provided with glue layer between the end face 10,11 of

pad

4,7 and described housing 9 in the described elasticity; The cross section of described strip wedge shape object 15 be shaped as a kind of in " 7 type ", " del type ", " the T type " or " trapezoidal ".

Pad

4,7 adopts novel expanded material in the elasticity of the present utility model, as EVA, EPDM etc.

The EVA product of rubber and plastic is novel environment friendly plastics expanded material (Chinese name: poly-second-ethyl acetate), has advantages such as good buffering, antidetonation, heat insulation, moistureproof, resist chemical, and nontoxic, do not absorb water.

This material of EPDM (Chinese name: the ethylene propylene diene rubber ethylene propylene diene rubber is introduced the terpolymer that ethylene propylene diene rubber is ethene, propylene and non-conjugated diene hydrocarbon) has shock resistance, and good springiness, anti-skid wearable, anti-ozone are nontoxic, flame-resistant high-temperature-resistant, cold-resistant, ageing-resistant, advantage such as the life-span is long.

The characteristics of all expanded materials are the quality softnesses, and elasticity is big, and retractility is good, can be good at filling up the gap between

end cap

2,5 and housing 9 end faces under pressure, thereby realize good sealed waterproof effect.

The utility model adopts scleroid end cap 2,5 (as metal structure), is used for supporting and consolidating in the elasticity and fill up 4,7, because its intensity is big,

pad

4,7 can be fitted on the end face 10,11 of housing 9 very closely in the elasticity so can make.Simultaneously,

end cap

2,5, fashionable because its quality is hard in screw threads, can prevent in the screw precession process end

cap

2,5 stubborn splitting, so easy and simple to handle, for ease of maintenaince.Simultaneously can use end cap repeatedly,, save production cost, reduce waste with respect to traditional plastic end cover.

In elasticity, fill up 4,7 and the end face 10,11 of housing between be provided with glue layer, make that

pad

4,7 is bonded on the end face 10,11 fully in the elasticity, completely cut off steam and infiltrated housing 9 inside cavity, guaranteed better waterproof effect.

In elasticity, fill up 4,7 and

end cap

2,5 between also be provided with glue layer, the

interior pad

4,7 of elasticity is bonded on the

end cap

2,5 fully, so not only guaranteed better waterproof effect, and when assembling, the screw hole 6 of

pad

4,7 in

end cap

2,5 and the elasticity can accurately be located, be convenient to successful installation faster.

The base 16 of the band installing hole 17 of

end cap

2,5 bottoms, help just controller for electric vehicle by screw in electric motor car, reduced because the fixing defective of the frequent vibrations that bring of shakiness of electric motor car.

Need specify: strip wedge 15, its shape is up big and down small, its effect is that power tube 14 is closely matched with housing 9, its shape can be in " 7 type ", " del type ", " the T type " or " trapezoidal " one or more, guarantee that it realizes under action of gravity or under external force gliding, and more and more tight, thereby chucking power tube 14.Strip wedge 15 can impel power tube 2 to be attached to very steadily on the internal face of housing 9.Help to strengthen the stability of power tube like this, the heat of power tube is distributed by housing 9, guaranteed radiating effect, and guaranteed the stability of the utility model integral body.

Card 3 spiral-locks that have the strip gap are in end cap 2 line outlets 8, and the strip gap in the card 3 is used to block the electric wire of output, the width in strip gap and bar number according to electric wire what and decide, it is good just being full of the strip gap with electric wire, helps like this sealing; Pour into the surface of adhesive again, make the gap of the abundant sealed wire of adhesive at card 9 places to card 3;

Referring to Fig. 1-6, assembling process of the present utility model is:

The first step: earlier circuit board 13 is put into the cavity of the utility model housing 9, power tube 2 is contacted with shell 1 inwall; Strip wedge 15 is put into the inner chamber of housing 9 again, made small end down, big end up, at gravity or apply under the effect of external force, strip wedge 15 is attached on the internal face of housing 9 power tube 2 tightly, reaches tight contact, and heat radiation good technical effect.

Second step: earlier pad in the elasticity 7 is bonded together by glue layer and end cap 5, the screw hole of the two is accurately located, pad 7 (having smeared glue layer in advance) are bonded on the end face 10 of housing 1 in the elasticity that will be softer again, and interior pad 7 of elasticity and end face 10 are combined closely; Afterwards, pass in end cap 5, the

elasticity screw hole

6,1 on pad 7 and the housing 9 successively with screw, and firmly screw.Make housing 9, the interior pad 7 of elasticity, end face 10 can cooperate and reach preferable sealed waterproof effect closely.

The 3rd step: with electric wire fill up 4 in the elasticity, the hollow position (being line outlet 6) of end cap 2 draws, again will the elasticity of band line outlet in pad 4, end cap 2 combine closely with the end face 11 of housing 9 (concrete grammar goes on foot with second); Afterwards electric wire is not gone in the strip gap of card 3 according to corresponding thickness degree, accomplish that electric wire is full of the strip gap uniformly as far as possible.Inwardly shift onto card 3 in the line outlet 8 of end cap 2 along electric wire afterwards, at last, encapsulating is lived the clearance seal between electric wire, card 3, end cap 2 line outlets, and passes the screw hole 1 on the pad 4 and housing 9 in end cap 2, the elasticity successively with screw, and firmly screw, thereby finish whole assembling process.

Utilize technical scheme described in the utility model, or those skilled in the art designing the similar techniques scheme under the inspiration of technical solutions of the utility model, and reach above-mentioned technique effect, all is to fall into protection range of the present utility model.

Claims

1. controller for electric vehicle, comprise integral housing, end cap and circuit board, it is characterized in that: also be provided with pad in the elasticity between described housing and the end cap, pad is close to described housing end face in the described elasticity, the outer surface of described housing is provided with installing port screw hole outwardly, also be provided with strip wedge shape object in the described housing, described strip wedge body is used for the chucking of the power tube on the described circuit board is fixed on described housing.

2. controller for electric vehicle as claimed in claim 1 is characterized in that: the correspondence position of the outer surface screw hole of pad and end cap and integral housing is provided with screw hole in the described elasticity.

3. controller for electric vehicle as claimed in claim 1 is characterized in that: the body shape of described end cap is for directly tabular, and the bottom, outer end of end cap is provided with the base of band installing hole.

4. controller for electric vehicle as claimed in claim 1 is characterized in that: pad is made for expanded material in the described elasticity.

5. controller for electric vehicle as claimed in claim 1 is characterized in that: be provided with glue layer between pad and the described end cap in the described elasticity.

6. controller for electric vehicle as claimed in claim 1 is characterized in that: be provided with glue layer between the end face of pad and described housing in the described elasticity.Delete, repeated

7. controller for electric vehicle as claimed in claim 1 is characterized in that: the cross section of described strip wedge shape object be shaped as a kind of in " 7 type ", " del type ", " the T type " or " trapezoidal ".