Water-cooled motor casing

Abstract

The utility model belongs to new energy automobile motor heat dissipation technical field, concretely relates to a water cooling machine shell for motor, and this new type includes: motor casing, its side is equipped with a plurality of circular array set through -hole, a plurality of flow guide components are set in corresponding through -hole to accelerate water flow, and the water cooling machine shell for motor reaches water flow in through -hole to set flow guide components to realize the quick flow, even heat exchange and timely discharge in motor casing, effectively solve the low problem of heat dissipation efficiency caused by water flow retention in the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of heat dissipation technology for new energy vehicle motors, specifically relating to a water-cooled housing for motors. Background Technology

[0002] With the rapid development of new energy vehicles, the motor, as one of the core components of new energy electric vehicles, directly affects the vehicle's driving performance and safety. During operation, the motor generates a large amount of heat. If this heat cannot be dissipated effectively and in a timely manner, it can lead to overheating, affecting the motor's efficiency and lifespan, and even causing safety accidents.

[0003] Currently, the two most common heat dissipation methods for electric motors in new energy vehicles are water cooling and air cooling. Water cooling is widely used in high-power motors due to its high heat dissipation efficiency.

[0004] Existing water-cooled motor housings typically employ a spiral flow channel design, intended to increase the water's transit time within the housing and thus improve heat absorption. However, in reality, even after absorbing heat and becoming hot, the water continues to flow within the housing and cannot be expelled promptly. This results in significantly reduced heat dissipation in certain areas and low heat transfer efficiency.

[0005] Therefore, in order to solve the above problems, it is necessary to design a water-cooled housing for the motor. Utility Model Content

[0006] The purpose of this invention is to provide a water-cooled housing for an electric motor to solve the technical problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a water-cooled housing for an electric motor, comprising: The motor housing has several through holes arranged in a circular array on its side; Several flow guiding components are installed in the corresponding through holes to accelerate the flow of water.

[0008] Furthermore, the flow guiding assembly includes: a fixed shaft disposed within a through hole and a spiral flow guiding vane wound around the fixed shaft; wherein The spiral guide vane is located between the through hole and the fixed shaft; and The spiral guide vane is adapted to guide the water flow in a spiral motion to accelerate the water flow through the through hole.

[0009] Furthermore, end caps are provided on both sides of the motor housing; wherein The motor housing is movably connected to the end cover; Both end caps have annular grooves on their inner sides; wherein The annular groove is connected to each through hole; and The water in the annular groove is adapted to flow into another annular groove through the through holes.

[0010] Furthermore, both end caps are provided with interface tubes on their outer sides; The interface pipe is connected to the annular groove; wherein One of the interface tubes is located on the upper part of the side of the end cap, and the other interface tube is located on the lower part of the side of the end cap; and One of the interface pipes is the water inlet, and the other interface pipe is the water outlet.

[0011] Furthermore, an annular abutment piece is provided on the side wall of the annular groove; wherein The two ends of the fixed shaft abut against the annular abutment piece.

[0012] Furthermore, each end of the motor housing is provided with two annular protrusions; The inner side of the end cap is provided with two annular recesses; wherein A sealing ring is provided inside the annular recess; The annular protrusion is adapted to press the sealing ring when inserted into the annular recess.

[0013] The beneficial effects of this utility model are: (I) The low-temperature water flow of this utility model flows into the annular groove inside the end cover from the interface pipe (water inlet) located on the upper part of the end cover. The annular groove distributes the water flow to each through hole connected to it. After the water flow enters the through hole, it moves in a spiral motion under the guidance of the spiral guide plate of the flow guiding component, which accelerates the flow velocity of the water flow in the through hole and avoids it from stagnating in the through hole. This allows the water flow to absorb heat and then be discharged quickly. The water flow that has absorbed heat flows out from the outlet of the through hole and enters the annular groove of the other end cover. The annular groove collects the water and discharges it from the motor housing through the interface pipe (water outlet) located at the lower part of the end cover. Through the above steps, the water flow in the motor housing is realized to achieve rapid circulation, uniform heat exchange and timely discharge, which effectively solves the problem of low heat dissipation efficiency caused by water flow stagnation in the prior art.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is an exploded view of a preferred embodiment of the present invention. Figure 2 This is a perspective view of a preferred embodiment of the end cap of this utility model; Figure 3 yes Figure 2 Enlarged view of region A in the middle; Figure 4 This is a perspective view of a preferred embodiment of the present invention.

[0018] In the picture: Motor housing 1, through hole 101, annular protrusion 102; Flow guiding assembly 2, fixed shaft 201, spiral guide vane 202; End cap 3, annular groove 301, annular abutment piece 302, annular recess 303; 4. Interface tube; 5. Sealing ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example 1

[0020] like Figures 1 to 4 As shown, this embodiment provides a water-cooled housing for an electric motor, comprising: The motor housing 1 has several circularly arranged through holes 101 on its side; several flow guiding components 2 are arranged in the corresponding through holes 101 to accelerate water flow; the through holes 101 serve as water flow channels; by setting several circularly arranged through holes 101, it is ensured that the water flow evenly covers the outer side of the motor housing 1, avoiding local heat dissipation dead zones and improving the overall heat dissipation uniformity. The heat generated by the motor during operation is transferred to the water flow in the through holes 101 through the inner wall of the motor housing 1, realizing heat exchange; by setting the flow guiding components 2 to guide the water flow, the flow velocity of the water in the through holes 101 is significantly accelerated, so that the water that has absorbed heat can be discharged from the motor housing 1 in a timely manner, avoiding the problem of local overheating caused by stagnation in the motor housing 1; the cooling medium is, but is not limited to, water or coolant.

[0021] The flow guiding assembly 2 includes: a fixed shaft 201 disposed within the through hole 101 and a spiral guide vane 202 wound around the fixed shaft 201; wherein the spiral guide vane 202 is located between the through hole 101 and the fixed shaft 201; and the spiral guide vane 202 is adapted to guide the water flow in a spiral motion to accelerate the water flow through the through hole 101; wherein the fixed shaft 201 is provided to support and fix the spiral guide vane 202, ensuring that the spiral guide vane 202 does not shift or deform under the impact of the water flow; wherein the spiral guide vane 202 and the fixed shaft 201 are provided to compress the space within the through hole 101, increase the contact between the water flow and the inner wall of the through hole 101, and improve the heat exchange efficiency; the spiral structure of the spiral guide vane 202 guides the water flow in a spiral motion within the through hole 101 to reduce water flow resistance, accelerate the speed of the water flow through the through hole 101, and avoid water flow stagnation after heat exchange.

[0022] The motor housing 1 is provided with end caps 3 on both sides; wherein the motor housing 1 is movably connected to the end caps 3; both end caps 3 are provided with annular grooves 301 on their inner sides; wherein the annular grooves 301 are connected to each through hole 101; and water in the annular grooves 301 is suitable to flow into the other annular groove 301 through each through hole 101; wherein the end caps 3 and the motor housing 1 are preferably connected by bolts; wherein by setting the annular grooves 301 to be connected to each through hole 101, water flow is distributed to each through hole through the annular grooves 301.

[0023] Both end caps 3 are provided with interface pipes 4 on their outer sides; the interface pipes 4 are connected to the annular groove 301; one of the interface pipes 4 is located on the upper side of the end cap 3, and the other interface pipe 4 is located on the lower side of the end cap 3; and one of the interface pipes 4 is a water inlet, and the other interface pipe 4 is a water outlet; the interface pipe 4 located on the upper part of the end cap 3 as the water inlet and the interface pipe 4 located on the lower part as the water outlet is the most preferred option, which uses the height difference to assist the water flow and reduce the water flow resistance.

[0024] The annular groove 301 has an annular abutment piece 302 on its side wall; the two ends of the fixed shaft 201 abut against the annular abutment piece 302; by setting the annular abutment piece 302, the two ends of the fixed shaft 201 abut against the annular abutment piece 302, so as to achieve stable installation of the flow guiding component 2 in the through hole 101.

[0025] Both ends of the motor housing 1 are provided with two annular protrusions 102; the inner side of the end cover 3 is provided with two annular recesses 303; a sealing ring 5 is provided in the annular recess 303; the annular protrusion 102 is adapted to press the sealing ring 5 when inserted into the annular recess 303; through the interlocking of the annular protrusion 102 and the annular recess 303, when the end cover 3 is bolted to the motor housing 1, the annular protrusion 102 presses the sealing ring 5 in the annular recess 303 to ensure that there is no leakage of water in the annular groove 301 and the through hole 101, and to ensure stable operation of the motor.

[0026] In this embodiment, low-temperature water flows from the interface pipe 4 (water inlet) located on the upper part of the end cover 3 into the annular groove 301 inside the end cover 3. The annular groove 301 distributes the water flow to each through hole 101 connected to it. After the water flow enters the through hole 101, it moves in a spiral motion under the guidance of the spiral guide plate 202 of the flow guiding component 2, which accelerates the flow rate of the water flow in the through hole 101 and prevents it from stagnating in the through hole 101. This allows the water flow to absorb heat and then be discharged quickly. The water flow that has absorbed heat flows out from the outlet of the through hole 101 and enters the annular groove 301 of the other end cover 3. The annular groove 301 collects the water and discharges it from the motor housing 1 through the interface pipe 4 (water outlet) located at the lower part of the end cover 3. Through the above steps, the water flow in the motor housing 1 achieves rapid circulation, uniform heat exchange and timely discharge, effectively solving the problem of low heat dissipation efficiency caused by water flow stagnation in the prior art.

[0027] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A water-cooled housing for an electric motor, characterized in that, include: The motor housing (1) has several through holes (101) arranged in a circular array on its side. Several flow guiding components (2) are disposed in the corresponding through holes (101) to accelerate the flow of water.

2. The water-cooled housing for the motor as described in claim 1, characterized in that, The flow guiding assembly (2) includes: a fixed shaft (201) disposed within a through hole (101) and a spiral flow guiding plate (202) wound around the fixed shaft (201); wherein The spiral guide vane (202) is located between the through hole (101) and the fixed shaft (201); and The spiral guide vane (202) is adapted to guide the water flow in a spiral motion to accelerate the water flow through the through hole (101).

3. The water-cooled housing for the motor as described in claim 2, characterized in that, The motor housing (1) is provided with end caps (3) on both sides; wherein The motor housing (1) is movably connected to the end cover (3); Both end caps (3) have annular grooves (301) on their inner sides; wherein The annular groove (301) communicates with each through hole (101); and Water in the annular groove (301) is adapted to flow into another annular groove (301) through each through hole (101).

4. The water-cooled housing for the motor as described in claim 3, characterized in that, Both end caps (3) are provided with interface tubes (4) on their outer sides; The interface pipe (4) is connected to the annular groove (301); wherein One of the interface tubes (4) is located on the upper part of the side of the end cap (3), and the other interface tube (4) is located on the lower part of the side of the end cap (3); and One of the interface pipes (4) is the water inlet, and the other interface pipe (4) is the water outlet.

5. The water-cooled housing for the motor as described in claim 4, characterized in that, An annular abutment piece (302) is provided on the side wall of the annular groove (301); wherein The two ends of the fixed shaft (201) abut against the annular abutment piece (302).

6. The water-cooled housing for the motor as described in claim 5, characterized in that, The motor housing (1) has two annular protrusions (102) at both ends. The inner side of the end cap (3) is provided with two annular recesses (303); wherein A sealing ring (5) is provided inside the annular recess (303); The annular protrusion (102) is adapted to press the sealing ring (5) when inserted into the annular recess (303).

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