CN204858875U - a motor - Google Patents

Abstract

The utility model provides a motor, it includes the casing, set up stator core in the casing, stator winding, and radiator unit, the stator winding coiling in stator core is last, radiator unit set up in stator winding's end winding department, radiator unit including insulating heat -conducting piece and set up in the heat -conducting piece is inside is used for the cooling pipe of coolant liquid circulation, the heat -conducting piece cladding in stator winding's end winding department. The utility model provides a motor can be with quick effectual the distributing away of the heat on the end winding of motor stator, and then make motor's the local temperature reduce effectively fast, and the life -span that can effectually improve motor.

Description

a motor

technical field

The utility model relates to the field of motors, in particular to a motor with better heat dissipation effect.

Background technique

Motors are currently widely used, and a large number of electronic products need to use motors. However, the heat dissipation of the motor has always been an important factor affecting the performance of the motor and its life. At present, many motors have the problem of local overheating, especially the end winding of the motor usually has the defect of local overheating. Generally, the end winding of the motor does not touch other parts, and it is completely suspended in the air, so the heat at the end is not easy to dissipate, so this is the highest temperature point inside the motor. Therefore, the filling material used in the prior art to plastic seal the end windings and the iron core or casing together still has an obvious temperature gradient. From the tip to the filler, and from the filler to the core or casing. Moreover, the iron core and the casing are cooled again through some external methods. If the casing is water-cooled, there will be an obvious temperature gradient between the casing and the water body, which will cause the motor to still have the defect of excessive local temperature.

Contents of the invention

The technical problem to be solved by the utility model is to provide a motor with better heat dissipation effect in view of the defect of poor heat dissipation effect of the motor in the prior art.

The technical solution adopted by the utility model to solve the technical problem is to provide a motor, which includes a housing, a stator core disposed in the housing, a stator winding, and a heat dissipation assembly; the stator winding is wound on the stator iron On the core, the heat dissipation assembly is arranged at the end winding of the stator winding; the heat dissipation assembly includes an insulated heat conduction element and a cooling pipe for cooling liquid circulation arranged inside the heat conduction element, and the heat conduction element Wrapped at the end windings of the stator windings.

In the motor provided by the utility model, the cooling pipe is provided with a buckle, and the cooling pipe is fixed on the housing through the buckle.

In the motor provided by the utility model, the heat conducting member is an insulating layer coated on the end winding.

In the motor provided by the utility model, the heat conducting element is a silica gel layer.

In the motor provided by the utility model, the stator core and/or the inner wall of the housing are provided with a thermally conductive adhesive layer for heat dissipation.

In the motor provided by the utility model, the stator winding is provided with a resin layer to protect the stator winding.

In the motor provided by the utility model, the stator winding includes a hollow coil and a solid coil connected with the hollow coil.

In the motor provided by the utility model, the cross-section of the hollow coil is an outer circle and an inner square.

In the motor provided by the utility model, the outer wall of the cooling pipe is provided with an insulating layer.

In the motor provided by the utility model, the cross section of the cooling pipe is circular.

In the motor provided by the utility model, a heat dissipation assembly is arranged at the end winding of the stator winding, specifically, the middle-insulated heat-conducting member is coated on the end winding of the stator winding through the heat dissipation group, and the center is set through the heat dissipation group The cooling pipes used for the circulation of the cooling liquid inside the heat conducting element can realize double cooling. Moreover, the heat conduction element is coated on the end winding so that it can dissipate the heat of the end winding in a balanced and effective manner. It can assist the heat conduction member to effectively dissipate the local heat on the motor, so the motor provided by the utility model has a better heat dissipation effect, and can effectively improve the performance and life of the motor.

Description of drawings

Fig. 1 is a partial sectional view of a motor in an embodiment provided by the utility model;

Fig. 2 is a partial structural diagram of the motor in an embodiment provided by the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation shown in the drawings or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the utility model .

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Referring to Fig. 1 to Fig. 2, the utility model provides a motor that can better improve the problem of high local temperature of the end winding. Specifically, the motor provided by the utility model includes: a housing 04, a stator core 05 arranged in the housing 04, a stator winding, and a heat dissipation assembly 20; the stator winding is wound on the stator core 05, and the The heat dissipation assembly 20 is arranged at the end winding 01 of the stator winding; the heat dissipation assembly 20 includes an insulated heat conduction element 02 and a cooling pipe 03 arranged inside the heat conduction element 02 for the circulation of cooling liquid. The piece 02 is wrapped around the end winding 01 of the stator winding. The winding is a coil, usually an ellipse as a whole, and its two sides are embedded in the iron core slot, so that a section will be suspended at both ends of the iron core. The coil in the core slot is called the slot winding, and the part of the coil suspended at both ends of the opposite iron core is the end winding 01. The winding in the slot can conduct heat directly through the iron core, while the main body of the end winding 01 is suspended, generally speaking, its heat dissipation is not good, and it is also the highest temperature point of the motor. Those skilled in the art are familiar with the meaning of the end winding 01 , which will not be repeated here. Since the heat dissipation assembly 20 is provided at the end winding 01, the heat conduction element 02 in the heat dissipation assembly 20 is covered on the end winding 01 and the cooling pipe 03 is arranged in the heat conduction element 02, so the combination of the heat conduction element 02 and the cooling pipe 03 The cooling liquid in the stator winding can dissipate the heat of the stator winding, that is, the local heat of the end winding 01 in the stator winding can be dissipated quickly through the heat dissipation assembly 20, and, because the heat conducting member 02 is insulated, the end winding 01 and the cooling The pipe 03 can be set relatively tight, and even if the heat conduction performance of the heat conduction member 02 is not high, it can effectively and greatly reduce the temperature at the end of the winding.

In a preferred embodiment of the present invention, the cooling pipeline 03 can be arranged in the heat conducting member 02 in various ways, for example, the cooling pipeline 03 is arranged on the housing 04 or the stator core 05 of the motor through a fixing piece, preferably , The cooling pipe 03 is provided with a buckle 10 , and the cooling pipe 03 is fixed on the housing 04 through the buckle 10 . Referring to Fig. 2, the cooling pipeline 03 is fixed on the casing 04 through bolts and buckles 10, which can ensure the stability of the cooling pipeline 03, and its structure is simple. At the same time, the cooling pipeline 03 can be connected with the housing 04 of the motor The heat dissipation pipes are connected to simplify the overall heat dissipation structure of the motor while ensuring a good heat dissipation effect of the motor.

The heat conduction element 02 is used to dissipate the heat on the stator winding. The heat conduction element 02 can be made of various materials. In order to simplify the structure of the motor and reduce its weight and volume, the heat conduction element 02 can be an insulating filling material, such as foam, which will The end winding 01 is covered, which can better guide the heat on the end winding 01 to radiate outward, so as to avoid local overheating in the motor, especially to avoid local overheating of the end winding 01 in the stator winding of the motor Defects. Preferably, the heat-conducting element 02 is an insulating layer coated on the end winding 01, that is, the insulating material is directly coated on the end winding 01 to form an insulating layer, the process is simple, and the heat-conducting element 02 can be stably arranged Heat dissipation is carried out on the end winding 01 , and the coating layer is generally relatively uniform, which is also conducive to temperature balance on the end winding 01 . Preferably, the heat conducting element 02 is a silicone layer, which has better heat dissipation effect and lower cost.

In order to better reduce the temperature of the motor, preferably, a thermally conductive adhesive layer for heat dissipation is provided on the inner wall of the stator core 05 and/or the housing 04 . It can dissipate the heat on the stator core 05 and the casing 04 in the motor. Preferably, the stator winding is provided with a resin layer to protect the stator winding. More preferably, the stator winding includes hollow coils and solid coils connected to the hollow coils. In this way, the electromagnetic induction effect of the stator winding and the stator core 05 can be ensured, and at the same time, the weight of the motor can be reduced. Preferably, the cross-section of the hollow coil is an outer circle and an inner square. It can ensure the firmness of the winding. In a preferred embodiment of the present utility model, the outer wall of the cooling pipe 03 is provided with an insulating layer. In this way, the cooling pipe 03 can be arranged closer to the end winding 01, even if the motor operating voltage is high, the electrical interference between the cooling pipe 03 and the end winding 01 and other parts of the motor can be reduced. At the same time, the cooling pipe 03 and the end winding The closer the winding 01 is, the better its cooling effect on the motor is. Preferably, the cross section of the cooling duct 03 is circular. It can facilitate processing, and facilitate the circulation and heat dissipation of the cooling liquid in the cooling pipe 03 .

To sum up, it installs a heat dissipation assembly at the end winding of the stator winding, specifically wraps the mid-insulated heat-conducting member on the end winding of the stator winding through the heat dissipation group, and sets the middle part on the stator winding through the heat dissipation group. The cooling ducts inside the heat conducting element for the circulation of the coolant can achieve double cooling. Moreover, the heat conduction element is coated on the end winding so that it can dissipate the heat of the end winding in a balanced and effective manner. It can assist the heat conduction member to effectively dissipate the local heat on the motor, so the motor provided by the utility model has a better heat dissipation effect, and can effectively improve the performance and life of the motor.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples" or "some examples" mean specific features described in connection with the embodiment or example, A structure, material, or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. a motor, is characterized in that, comprises housing, the stator core be arranged in housing, stator winding and radiating subassembly;

Described stator winding is wound on described stator core, and described radiating subassembly is arranged at the End winding place of described stator winding;

Described radiating subassembly comprises the heat-conducting piece of insulation and is arranged at the cooling pipe for cooling fluid circulation of described heat-conducting piece inside, and described heat-conducting piece is coated on the End winding place of described stator winding.

2. motor as claimed in claim 1, it is characterized in that, described cooling pipe is provided with fastener, and described cooling pipe is fixed on described housing by fastener.

3. motor as claimed in claim 1 or 2, it is characterized in that, described heat-conducting piece is the insulating barrier being coated on described End winding place.

4. motor as claimed in claim 3, it is characterized in that, described heat-conducting piece is layer of silica gel.

5. motor as claimed in claim 1, is characterized in that, the inwall of described stator core and/or described housing being provided with the heat conduction glue-line for dispelling the heat.

6. motor as claimed in claim 3, is characterized in that, described stator winding is provided with the resin bed protecting described stator winding.

7. motor as claimed in claim 3, is characterized in that, the solid coil that described stator winding comprises hollow coil and is connected with hollow coil.

8. motor as claimed in claim 7, it is characterized in that, the cross section of described hollow coil is round outside but spuare inside shape.

9. motor as claimed in claim 8, it is characterized in that, the outer wall of described cooling pipe is provided with insulating barrier.

10. motor as claimed in claim 9, is characterized in that, the circular in cross-section of described cooling pipe.