CN201234409Y

CN201234409Y - Controller for electric vehicle

Info

Publication number: CN201234409Y
Application number: CNU2008200748898U
Authority: CN
Inventors: 高栓邦
Original assignee: Tianjin Santroll Electric Science & Technology Co Ltd
Current assignee: Tianjin Santroll Electric Science & Technology Co Ltd
Priority date: 2008-05-27
Filing date: 2008-05-27
Publication date: 2009-05-06
Anticipated expiration: 2018-05-27

Abstract

The utility model discloses a control device for electric vehicles, and aims to provide an electric vehicle controller with good sealing performance, good thermal diffusivity and convenient maintenance. The electric vehicle controller comprises a casing, an end cover and a circuit board, wherein, the casing has an integral hollow structure; a flat spring which is proximately Z-shaped or 7-shaped is arranged in the hollow cavity; a cuniform cage keps is arranged on the upper surface of the interior part of the casing; a cuniform groove formed by the cuniform cage keps and the interior part of the casing is used for placing the upper end of the flat spring; the lower end of the flat spring is used for clamping a power tube on the circuit board; and the thermal diffusing surface of the power tube is enabled to be tightly adhered to the side surface of the casing. The utility model has the advantages of better sealing and waterproofing performance, convenient maintenance and good thermal diffusivity, and is a product replacing 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 motor vehicle control appliance that is applied to 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, heat radiation, shockproof properties as the control maincenter part of electric motor car.If radiating effect is bad, the circuit board long-term work, temperature raise to surpass the peak of components and parts, and components and parts damage, thereby cause controller work undesired and even operate malfunctioning; If poor sealing, the controller for electric vehicle water inlet makes the components and parts short circuit of circuit board malfunctioning.

Common controller on the market, be when the constant power pipe, to adopt to punch in the housing side, and with screw with the fixing this mode in the side of power tube and housing, the defective that can bring screw hole to leak like this, thus cause controller for electric vehicle to damage, need and twist screw in the punching of housing side simultaneously, so complex procedures, be unfavorable for enhancing productivity, also bring very big puzzlement, dismounting complexity for maintenance.

Controller architecture on the market is that shell is divided into loam cake and drain pan two parts, these two parts connect by the buckle spiral-lock, because the buckle place leaves the space, steam is easy to enter in the cavity at circuit board place by this space, makes the components and parts short circuit of circuit board malfunctioning; Even smear one deck waterproof material at the buckle place, because the limitation of waterproof material water resistance is added when smearing, be subjected to the influence of operating personnel's level, coating layer thickness is inhomogeneous, influences sealing effectiveness; Because the thermal conductivity of waterproof coating is bad, between loam cake and drain pan, reduced the effect of heat radiation simultaneously, made loam cake and drain pan can not form the radiator of a circulation.

In a word, this side punching of controller for electric vehicle of the prior art and to twist the waterproof effect of monolithic construction of screw bad, the effect that the structure of loam cake and drain pan spiral-lock combination can not well reach not only waterproof but also dispel the heat, and these waterproof cooling problems all are the more scabrous technical problems of present controller for electric vehicle technical field.

The shortcoming of existing controller is:

1. the consistency of installing owing to power tube can not guarantee, thereby power tube can not closely be contacted with loam cake, and the heat of power tube just can not pass by loam cake preferably, thereby can not reach better radiating effect.

2. power tube is screwed on the shell of controller, need make a call to 3 holes at least in the side of shell, earlier power tube is connected on the aluminum strip with screw, on aluminum strip, punch again, match in the hole of this hole and shell side, pass the hole of aluminum strip and shell side at last with screw, the three is coupled together.

3. the housing side has screw hole also can bring the defective of leaking, and causes controller malfunctioning, brings potential safety hazard to electric motor car.

4. shell is made of loam cake and drain pan two parts, and the space is left in the junction, causes poor sealing, water inlet easily, and waterproof effect is poor.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of sealing, water resistance is good, installation is firm, easy to maintenance, the controller for electric vehicle that helps power tube heat radiation.

The technical problem that the utility model solves takes following technical scheme to realize: a kind of controller for electric vehicle, comprise shell, end cap and circuit board, described shell is all-in-one-piece cavity structure, be provided with the springs of general shape in the described cavity for " Z " shape or " Off ", the upper surface of described enclosure is provided with the wedge shape saddle, the upper end that the wedge-shaped impression that described wedge shape saddle and described enclosure form is used to place described springs, the lower end of described springs is used to compress the power tube on the described circuit board, and the radiating surface of described power tube is close on the side of described shell.

The technical problem that the utility model solves can also take following technical scheme to realize: the upper surface of described enclosure also is provided with dovetail groove, be provided with the strip sphenoid in the described dovetail groove, the outer rim of described strip wedge is used to block the bend of described springs upper end; Several calvus are arranged in the lower end of described springs, and the quantity of described calvus is decided according to the quantity of power tube on the described circuit board; The top of described strip sphenoid is arranged to swallowtail shape and is matched with dovetail groove, and an end of described strip sphenoid bottom is arranged to triangle or pointed shape such as trapezoidal; The upper end of described springs has downward oar degree distortion, and front end can upwarp slightly; The angle that the upper surface of described enclosure and described wedge shape saddle form is less than or equal to 45 °.

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

1. the active force of springs generation can make power tube contact more closely with shell, has increased area of dissipation, and has improved the steadiness of power tube, and shockproof properties is good.

2. only need to be provided with the springs of bend shape, both can reach good waterproof effect, saved production cost again, and improved production efficiency with simple bottom; Simultaneously, operation is few, and is very simple during dismounting, helps maintenance.

3. because the stroke of springs is bigger, not only tighten effectively, and lower to the required precision of shell processing, help reducing cost and enhancing productivity.

4. shell adopts the integral type cavity structure, and the infiltration in gap had both been avoided in the gap when having avoided spiral-lock to connect, and has guaranteed the good result of circulation heat radiation again.

Description of drawings

Fig. 1 is a sectional structure schematic diagram of the present utility model;

Fig. 2 is another sectional structure schematic diagram of the present utility model;

Fig. 3 is the structural representation of the utility model strip sphenoid;

Fig. 4 is the structural representation of the utility model springs;

Fig. 5 is a schematic perspective view of the present utility model.

Embodiment

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

Shown in Fig. 1-5, the 1st, wedge-shaped impression, the 2nd, bend, the 3rd, dovetail groove, the 4th, strip sphenoid, the 5th, shell, the 6th, circuit board, the 7th, saddle, the 8th, power tube, the 9th, springs, the 10th, wedge shape saddle, the 11st, calvus, the 12nd, end cap.

Controller for electric vehicle of the present utility model, comprise shell 5, end cap 12 and circuit board 6, shell 5 is all-in-one-piece cavity structure, has both saved installation procedure, helps the circulation heat radiation of power tube 8 again, the upper surface of shell 5 inside is provided with wedge shape saddle 10, the angle that upper surface and wedge shape saddle 10 form is less than or equal to 45 °, and wedge shape saddle 10 is mainly used in the top of placing springs 9, if angle is greater than 45 °, then springs 9 just is easy to landing, has not had the effect that compresses.

Be provided with the springs 9 of general shape in the shell 5 for " Z " shape or " Off ", the upper end of springs 9 is placed in the wedge-shaped impression 1 of wedge shape saddle 10 and the formation of shell 5 inner surfaces, the lower end of springs 9 is used to compress the power tube 8 on the circuit board 6, the radiating surface of power tube 8 is close on the side of shell 5, the top of springs 9 is provided with bend 2, and has downward oar degree distortion, front end also can upwarp slightly, be the installation of springs 9 for convenience like this, can be slided on wedge shape saddle 10 in the top of springs 9, and certain stroke is arranged at the top that makes springs 9, can better withstand in the wedge-shaped impression 1 in the process of installing, several calvus 11 are arranged in the lower end of springs 9, the quantity of calvus 11 is decided according to the quantity of power tube 8 on the circuit board 6, power tube 8 of a general calvus 11 extruding, the installation requirement to power tube 8 then reduces greatly like this, has solved the uneven bad fixing problem of power tube 8 convex-concaves.

The upper surface of shell 5 inside also is provided with dovetail groove 3, be provided with strip sphenoid 4 in the dovetail groove 3, the top of strip sphenoid 4 is arranged to swallowtail shape and is matched with dovetail groove 3, one end of strip sphenoid 4 bottoms is arranged to triangle or pointed shape such as trapezoidal, the insertion of more convenient like this strip sphenoid 4, the bend 2 of springs 9 can be got in the wedge-shaped impression 1 when strip sphenoid 4 inserts, the outer rim of getting into back strip wedge 4 can be blocked the bend 2 of springs 9; Make springs 9 more firm, be not easy to glide.

The sidewall of shell 5 inside is provided with saddle 7, is used to hold power tube 8, thereby hold circuit board 6 circuit board is fixed.

Referring to Fig. 1-5, assembling process of the present utility model is:

At first circuit board 6 is placed on the saddle 11, then springs-9 is put in the shell 5, earlier below springs 9, prop up power tube 8, the top of springs 9 is placed on the limit of wedge shape saddle 10, then strip sphenoid 4 is inserted dovetail groove 3, when inserting, strip sphenoid 4 also the top of springs 9 is got in the wedge-shaped impression 1, and the bend 2 of springs 9 is squeezed on the outer rim of dovetail groove 3, the bend 2 of 4 pairs of springs 9 of strip sphenoid also has squeezing action simultaneously, make springs 9 more fixing, be not easy landing, then the end cap 12 usefulness screws on both sides are installed in the both sides of shell 5, last sealant pouring and sealing has so just been finished installation assembling process of the present utility model.

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. a controller for electric vehicle comprises shell, end cap and circuit board, it is characterized in that: described shell is all-in-one-piece cavity structure, be provided with in the described cavity general shape for " Z " shape or "

" springs; the upper surface of described enclosure is provided with the wedge shape saddle; the upper end that the wedge-shaped impression that described wedge shape saddle and described inner surface of outer cover form is used to place described springs; the lower end of described springs is used to compress the power tube on the described circuit board, and the radiating surface of described power tube is close on the side of described shell.

2. controller for electric vehicle according to claim 1, it is characterized in that: the upper surface of described enclosure also is provided with dovetail groove, be provided with the strip sphenoid in the described dovetail groove, the outer rim of described strip wedge is used to block the bend of described springs upper end.

3. controller for electric vehicle according to claim 1 is characterized in that: several calvus are arranged in the lower end of described springs, and the quantity of described calvus is decided according to the quantity of power tube on the described circuit board.

4. controller for electric vehicle according to claim 2 is characterized in that: the top of described strip sphenoid is arranged to swallowtail shape and is matched with dovetail groove, and an end of described strip sphenoid bottom is arranged to triangle or pointed shape such as trapezoidal.

5. controller for electric vehicle according to claim 1 is characterized in that: the upper end of described springs has downward oar degree distortion, and front end can upwarp slightly.

6. controller for electric vehicle according to claim 1 is characterized in that: the angle that the upper surface of described enclosure and described wedge shape saddle form is less than or equal to 45 °