A motor structure that is easy to dissipate heat

Abstract

The utility model belongs to motor technical field especially relates to an easy motor structure of heat dissipation, including shell, be equipped with the cavity in the shell, be equipped with stator in the cavity, the inside of stator is provided with the mover, and the stator includes the iron core, a plurality of coils are wound on the iron core, and the iron core at least one side is equipped with the heat dissipation subassembly, and the heat dissipation subassembly includes flexible heat conduction layer and heat conduction sheet, and flexible heat conduction layer one side closely combines a plurality of coils setting, the other side closely combines heat conduction sheet, and heat conduction sheet closely combines on the shell. Through setting flexible heat conduction layer and heat conduction sheet, can the heat of a plurality of coils generates, conducts to the top and bottom of shell and carries out heat dissipation, compares the traditional single heat conduction to the lateral wall of shell and carries out heat dissipation through the iron core, realized the heat conduction of multiple paths, and the heat dissipation speed is faster, and the efficiency is better.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and in particular relates to a motor structure that facilitates heat dissipation. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Currently, existing electric motors generally only dissipate heat from the iron core to the outer casing, and the outer casing is equipped with some heat dissipation fins. However, the heat dissipation efficiency is low, which leads to excessive heat inside the motor and affects the motor's working efficiency.

[0003] Some existing motor heat dissipation structures, such as the assembled motor with easy heat dissipation disclosed in CN223093554U, include a housing, a front cover, and a rear cover. The front cover and the rear cover are detachably installed at both ends of the housing. A drive shaft is rotatably provided through the middle of the front cover and the rear cover. Then, a heat dissipation component is installed at one end of the drive shaft, thereby quickly assembling the motor. By using multiple heat-fitting connections, the internal structure of the motor is simplified, making heat dissipation and maintenance easier. At the same time, heat dissipation fins and a cooling fan are used for further heat dissipation treatment, improving the overall heat dissipation effect of the motor.

[0004] The aforementioned cooling motor uses a fan for heat dissipation, which can speed up the heat dissipation process. However, it is not suitable for some precision machines due to its size and the vibration it generates. At the same time, the existing method of simply using the iron core to conduct heat to the side wall of the outer casing for heat dissipation is slow and affects the motor's working efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a motor structure that is easy to dissipate heat, in order to solve the problems in the background art mentioned above, that "the above-mentioned heat dissipation motor dissipates heat by setting a fan, which can speed up the heat dissipation speed, but it cannot be used in some precision machines due to its size and vibration. At the same time, the existing method of simply dissipating heat from the iron core to the side wall of the outer casing is slow and affects the working efficiency of the motor".

[0006] To achieve the above objectives, this utility model provides a heat-dissipating motor structure, including a housing; a cavity is provided inside the housing, a stator is provided inside the cavity, a mover is provided inside the stator, and the stator includes an iron core; multiple coils are wound on the iron core, and a heat dissipation component is provided on at least one side of the iron core, the heat dissipation component including a flexible heat-conducting layer and a heat-conducting sheet; the flexible heat-conducting layer is tightly attached to the multiple coils on one side and tightly attached to the heat-conducting sheet on the other side, the heat-conducting sheet is tightly attached to the housing, and the flexible heat-conducting layer can conduct the heat generated by the multiple coils to the housing for heat dissipation through the heat-conducting sheet.

[0007] Optionally, one side of the flexible thermal conductive layer is tightly attached to one end of each coil, and the other side of the flexible thermal conductive layer is tightly attached to the thermal conductive sheet.

[0008] Optionally, the flexible thermal conductive layer may be a thermally conductive silicone grease layer or a thermally conductive silicone layer.

[0009] Optionally, the heat-conducting sheet is a ceramic heat-conducting sheet.

[0010] Optionally, the iron core includes a plurality of interconnected single pieces, each single piece having a wire frame, the wire frame being sleeved on the single piece, the single piece including a yoke and connected teeth, the wire frame including a first blocking part at both ends, a second blocking part and a winding part recessed in the middle, the coil being wound on the winding part.

[0011] Optionally, the wire frame is composed of two identical frames; each frame includes a first blocking part and a second blocking part, and each frame has a clearance space at the bottom, the shape of which is the same as the shape of the single piece, and the two frames are respectively fitted onto the single piece from the top and bottom.

[0012] Optionally, the iron core is provided with a potting compound layer, the middle part of each coil is located in the potting compound layer, and the two ends of each coil extend out of the potting compound layer.

[0013] Optionally, one end of the yoke portion of the single piece is provided with a connecting groove, and the other end is provided with a connecting protrusion. Two adjacent single pieces are connected through the connecting groove and the connecting protrusion.

[0014] Optionally, the sidewall of the housing is further provided with a plurality of heat dissipation protrusions arranged in a row, which are used to increase the heat dissipation area.

[0015] Optionally, heat dissipation components are provided on both sides of the iron core, and the flexible heat-conducting layers on both sides of the iron core are respectively tightly attached to the two ends of each coil.

[0016] Compared with the prior art, the above-mentioned technical solutions in the heat-dissipating motor structure provided by the embodiments of this utility model have at least one of the following technical effects:

[0017] By setting up a flexible heat-conducting layer and heat-conducting sheets, the heat generated by the multiple coils can be conducted to the top and bottom of the outer shell for heat dissipation. Compared with the traditional method of conducting heat to the side wall of the outer shell through the iron core, this achieves multi-path heat conduction, resulting in faster and more efficient heat dissipation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the exploded structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0021] Figure 3 This is a partial structural schematic diagram of the present invention.

[0022] Figure 4 This is a structural diagram of a single piece and a wire frame.

[0023] Figure 5 This is a partial structural schematic diagram of the present invention.

[0024] The following are the labeling elements in the figure:

[0025] 100. Outer shell; 110. Cavity; 120. Heat dissipation protrusion;

[0026] 200. Stator; 210. Iron core; 211. Single piece; 2111. Yoke; 2112. Tooth; 2113. Connecting groove; 2114. Connecting protrusion; 220. Coil; 230. Frame; 231. First blocking part; 232. Second blocking part; 233. Winding part; 234. Clearance position;

[0027] 300. Moving part;

[0028] 400. Heat dissipation component; 410. Flexible thermal conductive layer; 420. Thermal conductive sheet; 430. Recess;

[0029] 500. Potting compound layer. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0034] In one embodiment of this utility model, according to Figure 1-5 As shown, it includes a housing 100; a cavity 110 is provided inside the housing 100, a stator 200 is provided inside the cavity 110, a mover 300 is provided inside the stator 200, the stator 200 includes an iron core 210; multiple coils 220 are wound on the iron core 210, and the mover 300 rotates inside the stator 200, thereby driving the rotating shaft to output power outward.

[0035] The iron core 210 has a heat dissipation component 400 on at least one side. The heat dissipation component 400 is mainly used to conduct heat from the inside to the outer shell 100 for heat dissipation. Specifically, it conducts heat from the iron core 210 to the outer shell 100. Currently, heat conduction mainly involves the iron core 210 conducting heat to the side wall, while the top wall and bottom of the outer shell 100 are not utilized. The heat dissipation component 400 includes a flexible heat-conducting layer 410 and a heat-conducting sheet 420. The flexible heat-conducting layer 410 is tightly attached to multiple coils 220 on one side, and the heat-conducting sheet 420 is tightly attached to the other side. The heat-conducting sheet 420 is tightly attached to the outer shell 100. The flexible heat-conducting layer 410 can conduct the heat generated by the multiple coils 220 to the outer shell 100 for heat dissipation through the heat-conducting sheet 420. Specifically, the heat-conducting plate 420 is in close contact with the top or bottom wall of the outer casing 100, the iron core 210 conducts heat to the side wall, and the heat dissipation component 400 conducts heat to the top or bottom wall, achieving multi-path heat conduction, resulting in faster heat dissipation and better efficiency.

[0036] Specifically, by setting up a flexible heat-conducting layer 410 and a heat-conducting sheet 420, the heat generated by multiple coils 220 can be conducted to the top and bottom of the outer shell 100 for heat dissipation. Compared with the traditional method of conducting heat to the side wall of the outer shell 100 through the iron core 210 for heat dissipation, multi-path heat conduction is achieved, resulting in faster heat dissipation and better efficiency.

[0037] Understandably, the rotor 300 also includes other devices such as a rotating shaft and bearings. Since these are not improvements or invention points of this utility model patent, they are omitted here. The other devices are all conventional settings in the field and are common knowledge in the field, so they will not be described in detail here.

[0038] In another embodiment of this utility model, according to Figure 1 and 2 As shown, one side of the flexible heat-conducting layer 410 is tightly attached to one end of each coil 220, and the other side of the flexible heat-conducting layer 410 is tightly attached to the heat-conducting sheet 420. Specifically, the flexible heat-conducting layer 410 is annular and hollow, with one side abutting against one end of each coil 220. The coil 220 can conduct heat to the flexible heat-conducting layer 410, which is in close contact with the heat-conducting sheet 420, which in turn is in close contact with the top or bottom wall of the outer casing 100, finally conducting heat to the top or bottom wall of the outer casing 100.

[0039] In another embodiment of this utility model, according to Figure 1 and 2As shown, the flexible thermally conductive layer 410 can be a thermally conductive grease layer or a thermally conductive silicone layer. A recess 430 may be provided on the thermally conductive silicone layer, which fits and abuts against one end of each coil 220. The recess 430 allows for a tighter connection between the coil 220 and the thermally conductive silicone layer, resulting in a larger contact area and better thermal conductivity.

[0040] In another embodiment of this utility model, according to Figure 1 and 2 As shown, the heat-conducting plate 420 is a ceramic heat-conducting plate 420. The ceramic heat-conducting plate 420 is also annular and hollow, and has the functions of insulation and heat conduction.

[0041] In another embodiment of this utility model, according to Figure 1-4 As shown, the iron core 210 includes several interconnected single pieces 211. Each single piece 211 is provided with a wire frame, which can be fitted onto the single piece 211. The single piece 211 includes a yoke 2111 and connected teeth 2112. The wire frame includes a first blocking part 231 and a second blocking part 232 at both ends and a winding part 233 recessed in the middle. The coil 220 is wound around the winding part 233. Specifically, the assembled iron core 210 can make the copper filling rate of the coil 220 higher, the density greater, and the output torque greater.

[0042] In another embodiment of this utility model, such as Figure 1-4 As shown, the wire frame consists of two identical frames 230; each frame 230 includes a first blocking part 231 and a second blocking part 232, and each frame 230 has a clearance space 234 at its bottom. Specifically, the clearance space 234 at the bottom of the two frames 230 has the same shape as the single piece 211, and the two frames 230 can be fitted onto the single piece 211 from the top and bottom. The two frames 230 can wrap the iron core 210 to the maximum extent, ensuring a safe distance between the coil 220 and the iron core 210. At the same time, the wire frame provides a fixed skeleton, making the winding neat and tight, and preventing the coil 220 from deforming due to vibration or temperature changes.

[0043] In another embodiment of this utility model, such as Figure 1 and 2 As shown, the iron core 210 is provided with a potting compound layer 500, the middle part of each coil 220 is located in the potting compound layer 500, and the two ends of each coil 220 extend out of the potting compound layer 500. The potting compound layer 500 serves two purposes: firstly, it fixes the coil 220 to prevent it from loosening, and secondly, it increases thermal conductivity.

[0044] In another embodiment of this utility model, such as Figure 3 and 4As shown, the yoke 2111 of the single piece 211 has a connecting groove 2113 at one end and a connecting protrusion 2114 at the other end. Two adjacent single pieces 211 are connected to form a complete iron core 210 through the connecting groove 2113 and the connecting protrusion 2114. The modular iron core 210 design improves the copper filling rate and energy density of the coil 220, thereby increasing the output torque and better meeting customer needs.

[0045] In another embodiment of this utility model, such as Figure 1 and 2 As shown, the outer casing 100 also has a plurality of heat dissipation protrusions 120 arranged in a row on the side wall, which are used to increase the heat dissipation area.

[0046] In another embodiment of this utility model, such as Figure 1 , 2 As shown in Figure 5, preferably, heat dissipation components 400 are provided on both sides of the iron core 210, and the flexible heat-conducting layers 410 on both sides of the iron core 210 are tightly attached to the two ends of each coil 220. Each end of each coil 220 is attached to a flexible heat-conducting layer 410, and each flexible heat-conducting layer 410 is attached to a heat-conducting sheet 420. The two heat-conducting sheets 420 are tightly attached to the top wall and bottom wall of the outer casing 100, respectively, to conduct the heat of the coil 220 to the outer casing 100.

[0047] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this utility model. It should not be construed that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art, the architectural form of this utility model can be flexibly varied without departing from its concept, and a series of products can be derived. Any simple deductions or substitutions should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A motor structure that facilitates heat dissipation, characterized in that, The device includes an outer casing; a cavity is provided inside the outer casing, a stator is provided inside the cavity, and a mover is provided inside the stator. The stator includes an iron core; multiple coils are wound on the iron core, and a heat dissipation assembly is provided on at least one side of the iron core. The heat dissipation assembly includes a flexible heat-conducting layer and a heat-conducting sheet; the flexible heat-conducting layer is tightly attached to the multiple coils on one side and tightly attached to the heat-conducting sheet on the other side. The heat-conducting sheet is tightly attached to the outer casing, and the flexible heat-conducting layer can conduct the heat generated by the multiple coils to the outer casing for heat dissipation through the heat-conducting sheet.

2. The heat-dissipating motor structure according to claim 1, characterized in that, One side of the flexible thermal conductive layer is tightly attached to one end of each coil, and the other side of the flexible thermal conductive layer is tightly attached to the thermal conductive sheet.

3. The heat-dissipating motor structure according to claim 2, characterized in that, The flexible thermally conductive layer can be a thermally conductive silicone grease layer or a thermally conductive silicone layer.

4. The heat-dissipating motor structure according to claim 1, characterized in that, The heat-conducting sheet is a ceramic heat-conducting sheet.

5. The heat-dissipating motor structure according to claim 1, characterized in that, The iron core comprises several interconnected single pieces, each single piece having a wire frame that can be fitted onto the single piece. The single piece includes a yoke and connected teeth. The wire frame includes a first blocking part and a second blocking part at both ends and a winding part recessed in the middle. The coil is wound around the winding part.

6. The heat-dissipating motor structure according to claim 5, characterized in that, The wire frame is composed of two identical frames; each frame includes a first blocking part and a second blocking part, and each frame has a clearance space at the bottom, the shape of which is the same as the shape of the single piece, and the two frames are respectively fitted onto the single piece from the top and bottom.

7. The heat-dissipating motor structure according to claim 2, characterized in that, The iron core is provided with a potting compound layer, the middle part of each coil is located in the potting compound layer, and the two ends of each coil extend out of the potting compound layer.

8. The heat-dissipating motor structure according to claim 5, characterized in that, The single piece has a connecting groove at one end and a connecting protrusion at the other end of its yoke portion. Two adjacent single pieces are connected through the connecting groove and the connecting protrusion.

9. The heat-dissipating motor structure according to any one of claims 1-8, characterized in that, The outer casing sidewall is also provided with a plurality of heat dissipation protrusions arranged in a row, which are used to increase the heat dissipation area.

10. The heat-dissipating motor structure according to any one of claims 1-8, characterized in that, Heat dissipation components are provided on both sides of the iron core, and the flexible heat-conducting layers on both sides of the iron core are respectively tightly attached to the two ends of each coil.

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