CN201270453Y

CN201270453Y - Cooling water path construction for motor outer case

Info

Publication number: CN201270453Y
Application number: CNU2008201470659U
Authority: CN
Inventors: 魏超
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2008-08-27
Filing date: 2008-08-27
Publication date: 2009-07-08
Anticipated expiration: 2018-08-27

Abstract

The utility model provides a motor casing cooling water path structure, which comprises a body case, and a fixed rib, a water inlet and water outlet which are fixedly mounted on the body case, wherein the body case comprises a body-case inner sleeve and a body-case outer sleeve which are integrally arranged, and the cross section of the body case is a U-shaped cavity structure whose one end is closed, and the water inlet and the water outlet are respectively arranged on the body case, wherein mobile ribs are arranged between two adjacent fixed ribs in the same direction. The motor casing cooling water path structure leads the directed flow property of cooled water current to be guaranteed through setting a sealed S-shaped water path structure formed by a plug-pull mobile rib and the fixing rob which is integrally arranged with the body case, reduces self-circulating water eddy, and evenly achieves non self-circulating water eddy, can evenly and fully cool a motor, in addition, the motor casing cooling water path structure does not need to be welded, which lowers process difficulty, reduces the quantity of fittings, accelerates processing and production circle, and effectively lowers production cost.

Description

Motor housing cooling water channel structure

Technical field

The utility model relates to the motor cooling system, relates in particular to a kind of cooling water channel structure of motor housing.

Background technology

At present, for preventing global warming issue and the aspect that economizes on resources, motor vehicle and motor vehicle driven by mixed power have begun to play the part of more and more important role, and therefore, it is very important that the status of motor just seems.

Yet, along with the growth of unit volume loss, causing that motor each several part temperature raises during the motor operation, this has directly had influence on the useful life and the operational reliability of motor, so the motor Cooling System Design seems most important.For the power motor of cooling and mixing power vehicle use effectively and quickly, adopt the form cooling motor of water-cooled usually, cooling water flow along the water route one-way flow that designs, makes the housing wall of motor maintain lower temperature from the motor casing body wall.

The water route structure of hybrid vehicle water-cooled machine die casting casing commonly used often adopts welding procedure that water route structure, current are moved towards welding fabrication at present.Water-cooling motor cabinet generally is divided into parts such as cover in the casing, water channel muscle, casing overcoat, sealing end ring, by welding procedure parts are welded into the complete casing with circulation waterway structure of a cover, this complex process, the welding and assembling technics time is long, has reduced the efficient that motor is produced.

Simultaneously, the water route structure of hybrid vehicle water-cooled machine die casting casing commonly used is single-cycle O type water route structure at present, only be applicable to the water-cooled machine that core length is short, for the long water-cooled machine of iron core, this kind cooling water channel structure can be at the more self-circulating water eddy current of the inner formation of water cavity, in the casing water channel cavity cooling water flow to indefinite, form self-loopa at regional area, cooling motor uniformly, can cause motor local temperature rise higher, can cause the decline of motor performance in the course of time.

The utility model content

At the existing defective of above existing motor water route cooling structure, the utility model provide a kind of can be even and the motor housing cooling water channel structure of abundant cooling motor.

Goal of the invention of the present utility model is achieved through the following technical solutions:

A kind of motor housing cooling water channel structure comprises: casing, be fixedly installed in fixedly muscle, water inlet and delivery port on the described casing, and described casing comprises cover and casing overcoat in the casing that is wholely set, and the cross section of casing is the U die cavity body structure of end sealing; Described water inlet and delivery port are arranged at respectively on the described casing, wherein, described adjacent two fixedly between the muscle, are provided with movable muscle opposite to each other.

The utility model is by the S type water route structure of the sealing that pluggable movable muscle and the fixedly muscle that is wholely set with casing are set form, make the directed flow of cooling water flow be guaranteed, reduce the self-circulating water eddy current even do not had the self-circulating water eddy current, can even and sufficient cooling motor, in addition, this cooling water channel structure does not need welding, reduced technology difficulty, reduce number of components and parts, accelerated the processing cycle, effectively reduced production cost.

Description of drawings

Fig. 1 is the water channel expansion schematic diagram according to the utility model embodiment.

Fig. 2 is the draw-in groove schematic diagram of movable muscle of the present utility model.

Fig. 3 is the generalized section along the A-A direction of Fig. 1.

Embodiment

In order better to understand the utility model, the utility model is described in further detail below in conjunction with accompanying drawing.

With reference to Fig. 1, the utility model comprises: casing 6, be fixedly installed in fixedly muscle 7, water inlet 3 and delivery port 4 on the described casing 6, described casing 6 comprises cover 10 and casing overcoat 9 in the casing that is wholely set, and the cross section of casing 6 is the U die cavity body structure of end sealing; Described water inlet 3 and delivery port 4 are arranged at respectively on the described casing 6, wherein, described adjacent two fixedly between the muscle 7, are provided with movable muscle 1 opposite to each other.Described movable muscle 1 can be set to the form that can plug, and certainly, also can be set to fixed form, and under the preferable case, movable muscle 1 is set to the form that can plug.

With reference to Fig. 2 and Fig. 3, in described casing, between cover 10 and the casing overcoat 9, also be provided with several draw-in grooves 11, in order to movable muscle 1 is arranged in it, shape, the size of the shape of its draw-in groove 11, size and movable muscle 1 are complementary.Described movable muscle 1 fits tightly with the described casing 6 that includes interior cover 10 of casing and casing overcoat 9, and described movable muscle 1 is on motor housing in opposite directions with described fixedly muscle 7 to be arranged, in order to described fixedly muscle 7, casing in cover 10 and casing overcoat 9 form the S type water route of a sealing.

Certainly, the width in the S type water route of reservation, highly, the water channel size of turning can give unnecessary details here no longer one by one according to calculating in advance or the cooling water flow that other modes are learnt, the needs of electric machine temperature rise design voluntarily.

Simultaneously, described motor housing cooling water channel structure also includes sealing end ring 2, O type circle 5 and back-up ring 8, described sealing end ring 2 fits tightly with described movable muscle 1, described O type circle 5 is surrounded on the described sealing end ring 2, described back-up ring 8 is arranged at a side of the described dorsad movable muscle 1 of described sealing end ring 2, be used for fixing described sealing end ring 2 and O type circle 5, wherein, under the preferable case, the quantity of O type circle 5 is 2, overlaps 10 and the both sides of casing overcoat 9 directions around sealing end ring 2 in casing respectively.After in the draw-in groove 9 that described movable muscle 1 is fastened in the casing between cover 10 and the casing overcoat 9, the sealing end ring 2 that will have O type circle 5 is then packed into, back-up ring 8 is pressed into so that described sealing end ring 2 and O type circle 8 is fixing again, forms a complete sealing water cavity.In whole process, mainly be that cover 10 is closely contacted with casing overcoat 9, form the sealing water cavity of a sealing, make cooling water flow flow, so that reach a good motor cooling effect according to predetermined S type water route.

The utility model can solve that single-cycle O type water route structure only is applicable to the water-cooled machine that core length is short in the existing motor, and for the long water-cooled machine of iron core, can be at the more self-circulating water eddy current of the inner formation of the water cavity of water route structure, in the casing 6 water channel cavitys cooling water flow to indefinite, form self-loopa at regional area, the defective of cooling motor uniformly, by the S type water route structure of the sealing that pluggable movable muscle 1 and the fixedly muscle 7 that is wholely set with casing 6 form is set, make the directed flow of cooling water flow be guaranteed, reduce the self-circulating water eddy current even do not had the self-circulating water eddy current, can be even, effectively, sufficient cooling motor, in addition, this cooling water channel structure does not need welding, reduce technology difficulty and cost, reduce number of components and parts, accelerated the processing cycle, effectively reduced production cost.

The embodiment of the above is a better embodiment of the present utility model; be not to limit concrete practical range of the present utility model with this, the equivalence variation that all shapes according to the utility model, structure are done all is included in the protection range of the present utility model.

Claims

1, a kind of motor housing cooling water channel structure, comprise: casing (6), be fixedly installed in fixedly muscle (7), water inlet (3) and delivery port (4) on the described casing (6), described casing (6) comprises cover (10) and casing overcoat (9) in the casing that is wholely set, and the cross section of casing (6) is the U die cavity body structure of end sealing; Described water inlet (3) and delivery port (4) are arranged at respectively on the described casing (6), it is characterized in that, described adjacent two fixedly between the muscle (7), are provided with movable muscle (1) opposite to each other.

2, motor housing cooling water channel structure according to claim 1 is characterized in that, described movable muscle (1) is movably arranged on described adjacent two fixing centres of muscle (7).

3, motor housing cooling water channel structure according to claim 1 is characterized in that, described movable muscle (1) fits tightly with casing (6), forms a S type water route that seals with cover (10) and casing overcoat (9) in described fixedly muscle (7), the casing.

4, according to any described motor housing cooling water channel structure of claim 1 to 3, it is characterized in that, in described casing between cover (10) and the casing overcoat (9), also be provided with and described movable muscle (1) draw-in groove (11) one to one.

5, motor housing cooling water channel structure according to claim 4, it is characterized in that, also include sealing end ring (2), O type circle (5) and back-up ring (8), described sealing end ring (2) fits tightly with described movable muscle (1), described O type circle (5) is surrounded on the described sealing end ring (2), and described back-up ring (8) is arranged at a side of the described dorsad movable muscle of described sealing end ring (2) (1).