CN201064016Y

CN201064016Y - Controller for electric vehicle

Info

Publication number: CN201064016Y
Application number: CNU2007200965293U
Authority: CN
Inventors: 孔昭松; 刘延海; 静占国
Original assignee: SONGZHENG ELECTRONICS CO Ltd TIANJIN CITY
Current assignee: SONGZHENG ELECTRONICS CO Ltd TIANJIN CITY
Priority date: 2007-06-28
Filing date: 2007-06-28
Publication date: 2008-05-21
Anticipated expiration: 2017-06-28

Abstract

The utility model discloses an electric vehicle controller, aiming to provide an electric vehicle controller which is good in sealing effect, convenient to maintain and low in cost. The electric vehicle controller of the utility model comprises a hollow shell, a circuit board arranged in the shell and an end cover arranged on the external end of the shell. An inner pad arranged between the shell and the end cover is provided with a ring rib 21 protruding inward which is in close fit with the surface of an inner cavity of the shell. The end cover is provided with a ring rib 31 protruding inward which is embedded into the inner surface of the ring rib 21 to support the ring rib 21. The utility model is good in sealing and waterproof performance, simple in installation and convenient to maintain, hence a substitute for the prior electric vehicle controller.

Description

Controller for electric vehicle

Technical field

The utility model belongs to a kind of equipment of electric automobiles, is a kind of electric motor car control appliance 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: encapsulating, end caps encapsulating, end caps adopt three kinds of flat rubber cushions fully.

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, not only burr can occur at end face, but also can not bring end face neat or have uneven, after will causing section bar (promptly being housing) and flat rubber cushion to assemble like this, between end face and the rubber cushion slit is arranged, leak easily; And with screw fastening end cap the time, during several screw unbalance stress, end cap also warpage can occur, makes section bar end face and rubber cushion that the slit be arranged, and causes leaking.

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, and a kind of good airproof performance, water resistance is good, easy and simple to handle, production cost is low controller for electric vehicle are provided.

The technical problem that the utility model solves takes following technical scheme to realize: controller for electric vehicle of the present utility model, comprise cavity type housing 1, be arranged on circuit board 4 and the end cap 3 that is arranged on housing 1 outer end in the housing 1, pad 2 in being provided with between described housing 1 and the described end cap 3, the pad 2 ring-type ribs 21 that are provided with to inner process in described, described rib 21 closely cooperates with the surface of internal cavity of described housing 1, described end cap 3 is provided with the ring-type rib 31 to inner process, described rib 31 embeds the inner surface of described rib 21, and described rib 31 supports described rib 21.

Technical solutions of the utility model can also comprise: the outer rim of described rib 21 is provided with raised line 22; The outer rim of described rib 31 is provided with raised line 32; The angle that described rib 31 outwards sticks up is the 0-15 degree; Be provided with the fastener that has the strip space 6 of flexible connection in the end cap of the band wire hole in the described end cap 3, described fastener 6 is used for fixing lead-out wire (lead-out wire omits in the accompanying drawings); The correspondence position of described housing 1, described interior pad 2 and described end cap 3 is provided with the screw hole 5 that retaining screw is installed; The cross section of described raised line 22 be shaped as a kind of or wherein combination of two kinds of shapes in rectangle, arc, triangle, circle, ellipse, trapezoidal, the rhombus; The cross section of described raised line 32 be shaped as a kind of or wherein combination of two kinds of shapes in rectangle, arc, triangle, circle, ellipse, trapezoidal, the rhombus; Described fastener connects by buckle.

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

1. sealed waterproof effect is good, promptly the surface of internal cavity that is become radially by end face seal of the prior art seals, and in the art, is the technological progress of an initiative, broken through the technological deficiency in this area, made the water-tight problem of controller for electric vehicle obtain real solution.

2. simple in structure, easy and simple to handle, end caps increase by one can radial seal interior pad, just can realize good waterproof effect (because in be lined with certain retractility, can eliminate the not neat adverse effect with burr phenomena of the end face of section bar); Lower to workman's level of skill requirement simultaneously, only need interior pad and end cap setting-in are gone into housing, promptly finish assembling, operability has had significant enhancing.

3. production cost reduces greatly, in the prior art, all needs a large amount of encapsulatings, and needs two kinds of variety classes glue of perfusion, and so cost is very high, and the utility model only needs the glue of minute quantity to get final product, thereby has saved production cost greatly.

4. reduced operation, saved manpower, in the assembling of the controller of prior art, needed following several operations: at the gluing in spiral-lock gap, twist 8 or above screw, encapsulating again; And the utility model only needs a people that interior pad and end cap setting-in are gone into housing, promptly finishes assembling; Save operation, reduced human cost, improved production efficiency.

5. housing adopts the integral type cavity structure, is different from 2 half formulas of loam cake drain pan fully, and the infiltration in gap has been avoided in the gap when having avoided spiral-lock to connect; Guaranteed the good result of circulation heat radiation on the other hand again.

Description of drawings

Fig. 1 is a perspective view of the present utility model;

Fig. 2 is the structural representation of interior pad in the utility model;

Fig. 3 is the A-A directional profile figure of Fig. 2;

Fig. 4 is the structural representation of end cap in the utility model;

Fig. 5 is the A-A directional profile figure of Fig. 4;

Fig. 6 is the erection sequence schematic diagram of the utility model when having wire hole.

Embodiment

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

Shown in Fig. 1-6, the 1-housing; Pad in the 2-; 2 1-ribs; The 22-raised line; The 3-end cap; The 31-rib; The 32-raised line; The 4-circuit board; The 5-screw hole; The 6-fastener; The 7-opening member; The 8-buckle.

The technical solution of the utility model is as follows: controller for electric vehicle of the present utility model, comprise cavity type housing 1, be arranged on the circuit board 4 in the housing 1 and be arranged on the end cap 3 of housing outer end, pad 2 in being provided with between described housing 1 and the described end cap 3, the pad 2 ring-type ribs 21 that are provided with to inner process in described, described rib 21 closely cooperates with the surface of internal cavity of described housing, described end cap 3 is provided with the ring-type rib 31 to inner process, described rib 31 embeds the inner surface of described rib 21, and described rib 31 supports described rib 21.

Technical solutions of the utility model can also comprise: the outer rim of described rib 21 is provided with raised line 22; The outer rim of described rib 31 is provided with raised line 32; The angle that described rib 31 outwards sticks up is the 0-15 degree; Be provided with the fastener that has the strip space 6 of flexible connection in the end cap 3 of the band wire hole in the described end cap 3, described fastener 6 is used for fixing the electric wire of drawing; The correspondence position of described housing 1, described interior pad 2 and described end cap 3 is provided with the screw hole 5 that retaining screw is installed; The cross section of described raised line 22 be shaped as a kind of or wherein combination of two kinds of shapes in rectangle, arc, triangle, circle, ellipse, trapezoidal, the rhombus; The cross section of described raised line 32 be shaped as a kind of or wherein combination of two kinds of shapes in rectangle, arc, triangle, circle, ellipse, trapezoidal, the rhombus; Described fastener 6 connects by buckle 8.

Referring to Fig. 1-6, controller for electric vehicle of the present utility model, housing 1 is global design, becomes the cavity structure of a no end cap, because the infiltration in gap has been avoided in the gap when not had spiral-lock to connect, has guaranteed the good result that circulation is dispelled the heat again.

Interior pad 2 is provided with inwardly protruded ring-type rib 21, inwardly protruding is exactly the direction towards housing, simultaneously rib 21 is arranged to ring-type, and the shape of ring-type is identical with housing die cavity inner edge shape, purpose is rib 21 to be stretched into the surface of internal cavity of housing 1, and the surface of internal cavity of rib 21 and housing 1 is closely cooperated, thereby reach the technique effect of water-tight.Also be provided with inwardly protruded ring-type rib 31 on the end cap 3, the shape of rib 31 is identical with rib 21, rib 31 can embed the inner surface of rib 21 and rib 21 be played the effect of support, the inner surface of surface of internal cavity, rib 31 and the rib 21 of rib 21 and housing 1 all can be closely cooperated, by this two roads waterproof barrier, make waterproof effect of the present utility model considerably beyond the sealed waterproof effect of existing controller for electric vehicle.What particularly point out is: housing 1 of the present utility model is to have the heterotypic die space cross sectional shape, so adopt should in pad 2 when carrying out water-tight owing to having more flex point, the internal pad of ring-type rib on the end cap 3 can produce bigger active force thus, than the die cavity of regular shape, have better sealing and compress effect.

In addition, in order to obtain better airtight waterproof effect, the outer rim of the rib 21 on can interior pad 2 is provided with raised line 22, and the cross section of raised line 22 is shaped as a kind of or wherein combination of two kinds of shapes in rectangle, arc, triangle, circle, ellipse, trapezoidal, the rhombus simultaneously.Its effect be further to strengthen rib 21 and housing 1 surface of internal cavity close-fitting degree, thereby make waterproof effect better;

Similarly, the outer rim of the rib 31 on can end cap 3 is provided with raised line 32, and the cross section of raised line 32 is shaped as a kind of or wherein combination of two kinds of shapes in rectangle, arc, triangle, circle, ellipse, trapezoidal, the rhombus simultaneously; The rib 31 that its effect is further to increase on the end cap compresses the active force of rib 21 and housing 1 inner surface, thereby makes the two cooperation tightr, arrives best sealed waterproof effect.

Equally, the angle that rib 31 is set to outwards stick up is the 0-15 degree, promptly be that 31 pairs of ribs of rib 21 are produced significantly to the tension force of expanding all around, this is highly profitable for closely cooperating with increasing rib 21 and housing 1 surface of internal cavity, thereby has further improved sealed waterproof effect of the present utility model.

Be provided with circuit board 4 in the controller for electric vehicle of the present utility model, it is closed that housing 1 one side caps can be made into one, and opposite side is shaped on line outlet and is provided with the guiding and the fastener 6 of securing electric lines at the end cap central part; Perhaps an end is enclosed end cap 3, pad 2 in the centre has, and the other end is set to have the pattern of fastener 6; Certainly when electric wire is a lot, also can be arranged to the equal outlet of two ends, promptly two ends all have the form of fastener 6.Fastener 6 is connected with end cap 3 by buckle, sealant pouring and sealing between fastener 6 and the electric wire (encapsulating is a prior art partly, and this does not give unnecessary details).

In addition, the vibratility of operational environment that is used for electric motor car is bigger, for pad 2 in preventing and end cap 3 because frequent vibration and housing 1 are loosening and come off, thereby controller for electric vehicle is seeped water, the utility model is equipped with trip bolt at screw hole 5 places of the correspondence position of housing 1, interior pad 2, end cap 3.

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

The first step: interior pad 2 setting-ins that earlier will be softer are gone in the housing 1, and the surface of internal cavity of rib 21 and housing is closely cooperated; Afterwards, end cap 3 is embedded in the interior pad 2, the inner surface of rib 31 and rib 21 is closely cooperated.Because the inner surface of end cap 3 and housing 1 is a matched in clearance, and this gap is less than the thickness of the rib 21 of interior pad 2, so housing 1, interior pad 2, end cap 3 can cooperate and reach preferable sealed waterproof effect closely.

Second step: (this part is a prior art after circuit board is packed housing 1 into, this does not give unnecessary details), electric wire is drawn the same first step of method of housing 1 (interior pad 2 with holes, the end cap 3 pack into) from the hollow position of interior pad 2, end cap 3, again electric wire is not gone in the strip gap of fastener 6 according to corresponding thickness degree, accomplish that electric wire is full of the strip gap uniformly as far as possible.Afterwards fastener 6 is inwardly pushed away along electric wire, is connected with end cap 3 firmly up to fastener 6, again after, buckle opening member 7, last, encapsulating is lived the clearance seal between electric wire, fastener 6 and the opening member 7, thereby finishes 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 the cavity type housing, be arranged on the circuit board in the housing and be arranged on the end cap of housing outer end, be provided with interior pad between described housing and the described end cap, it is characterized in that: pad is provided with the ring-type rib (21) to inner process in described, described rib (21) closely cooperates with the surface of internal cavity of described housing, described end cap is provided with the ring-type rib (31) to inner process, described rib (31) embeds the inner surface of described rib (21), and described rib (31) supports described rib (21).

2. controller for electric vehicle according to claim 1 is characterized in that: the outer rim of described rib (21) is provided with raised line (22).

3. controller for electric vehicle according to claim 1 is characterized in that: the outer rim of described rib (31) is provided with raised line (32).

4. controller for electric vehicle according to claim 1 is characterized in that: the angle that described rib (31) outwards sticks up is the 0-15 degree.

5. controller for electric vehicle according to claim 1 is characterized in that: be provided with the fastener that has the strip space of flexible connection in the end cap of the band wire hole in the described end cap, described fastener is used for fixing lead-out wire.

6. controller for electric vehicle according to claim 1 is characterized in that: the correspondence position of described housing, described interior pad and described end cap is provided with the screw hole that retaining screw is installed.

7. controller for electric vehicle according to claim 2 is characterized in that: the cross section of described raised line (22) be shaped as a kind of or wherein combination of two kinds of shapes in rectangle, arc, triangle, circle, ellipse, trapezoidal, the rhombus.

8. controller for electric vehicle according to claim 3 is characterized in that: the cross section of described raised line (32) be shaped as a kind of or wherein combination of two kinds of shapes in rectangle, arc, triangle, circle, ellipse, trapezoidal, the rhombus.

9. controller for electric vehicle according to claim 5 is characterized in that: described fastener connects by buckle.