CN214506771U - Motor front shell, motor element and electric fan - Google Patents

Abstract

The utility model discloses a shell, motor element and electric fan before motor. The motor front shell comprises a front shell body and a vibration isolation piece, wherein the vibration isolation piece is arranged on the front shell body and is of an integrated structure with the front shell body. The utility model discloses technical scheme makes vibration isolation spare and preceding shell form a whole promptly during manufacturing, has left out the process of the manual equipment of complicated consuming time workman to the production efficiency of shell before the motor has been improved.

Description

Motor front shell, motor element and electric fan

Technical Field

The utility model relates to the technical field of electrical apparatus, in particular to shell before motor, use the motor element of shell and use this motor element's electric fan before this motor.

Background

When the electric fan works, the motor assembly of the electric fan can generate vibration and transmit the vibration to the mesh enclosure of the electric fan when working, so that the mesh enclosure generates resonance to cause the shaking phenomenon of the electric fan. In order to improve the shaking phenomenon of the electric fan, a motor front casing in a motor assembly of the electric fan in the related art is generally provided with a vibration isolation pad to buffer and isolate a vibration source of the electric fan. However, the front motor housing and the vibration isolator are usually manufactured separately and then assembled together manually by a worker, which is complicated and time-consuming, and thus reduces the production efficiency of the front motor housing.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a shell before motor aims at improving the production efficiency of shell before the motor.

In order to achieve the above object, the utility model provides a motor front shell includes:

a front housing body; and

the vibration isolation piece is arranged on the front shell body and is of an integrated structure with the front shell body.

In an embodiment of the present invention, the front housing body is provided with a mounting hole, and the vibration isolator is disposed through the mounting hole.

In an embodiment of the present invention, the hole wall of the mounting hole is provided with one of a limiting rib and a limiting groove, the outer side wall of the vibration isolating member is provided with the other of the limiting rib and the limiting groove, the limiting rib is embedded in the limiting groove and abuts against the groove wall of the limiting groove.

In an embodiment of the present invention, the limiting rib is disposed on the hole wall of the mounting hole and is arranged around the center line of the mounting hole;

the limiting groove is arranged on the outer side wall of the vibration isolation piece and is arranged along the side peripheral surface of the vibration isolation piece in a surrounding mode.

In an embodiment of the present invention, the depth of the limiting rib embedded into the limiting groove is defined as H, and H is greater than or equal to 1mm and less than or equal to 2 mm;

and/or defining the thickness of the limiting rib in the direction parallel to the center line of the mounting hole as D, and satisfying that D is more than or equal to 1mm and less than or equal to 2 mm.

In an embodiment of the present invention, the number of the limiting ribs is two, and the two limiting ribs are distributed at intervals along a central line direction of the mounting hole;

the number of the limiting grooves is two, and one limiting embedded rib is arranged in one limiting groove and is abutted against the groove wall of the limiting groove.

In an embodiment of the present invention, the vibration isolating member includes a buffer member, the buffer member includes:

the buffering main body part penetrates through the mounting hole, the limiting groove is formed in the outer side wall of the buffering main body part, and two opposite ends of the buffering main body part are defined in the direction parallel to the central line of the mounting hole;

a first buffer portion provided at one end of the buffer main body portion; and

and a second buffer portion provided at the other end of the buffer main body portion.

In an embodiment of the present invention, the number of the buffering members is at least two, the vibration isolating member further includes a connecting member, the connecting member is in a ring shape, and the buffering members surround the center of the connecting member and are evenly spaced apart, and each of the first buffering portion or the second buffering portion of the buffering members is connected to the connecting member.

In an embodiment of the present invention, the front housing body is provided with a mounting hole, and the vibration isolator is disposed through the mounting hole;

the wall of the mounting hole is provided with a limiting rib, the outer side wall of the vibration isolating piece is provided with a limiting groove, and the limiting rib is embedded in the limiting groove and is abutted against the wall of the limiting groove;

the limiting ribs are arranged around the central line of the mounting hole in a surrounding manner, and the limiting grooves are arranged along the lateral peripheral surface of the vibration isolating piece in a surrounding manner;

the number of the limiting ribs is two, the two limiting ribs are distributed at intervals along the direction of the center line of the mounting hole, the number of the limiting grooves is two, and one limiting embedded rib is arranged in the limiting groove and is abutted against the groove wall of the limiting groove;

defining the depth of the limiting rib embedded into the limiting groove as H, wherein H is more than or equal to 1mm and less than or equal to 2 mm;

defining the thickness of the limiting rib in the direction parallel to the center line of the mounting hole as D, and satisfying that D is more than or equal to 1mm and less than or equal to 2 mm;

the vibration isolation piece comprises a buffer piece, the buffer piece comprises a buffer main body part, a first buffer part and a second buffer part, the buffer main body part penetrates through the mounting hole, the outer side wall of the buffer main body part is provided with the limiting groove, the buffer main body part is defined to be provided with two opposite ends in the direction parallel to the central line of the mounting hole, the first buffer part is arranged at one end of the buffer main body part, and the second buffer part is arranged at the other end of the buffer main body part;

the first buffer part and the second buffer part are both arranged in a ring shape, the inner side wall of the first buffer part is connected with the outer side wall of one end of the buffer main body part, and the inner side wall of the second buffer part is connected with the outer side wall of the other end of the buffer main body part;

the buffer main body part, the first buffer part and the second buffer part are of an integral structure;

the cross sections of the buffer main body part, the first buffer part and the second buffer part are all circular;

the vibration isolation piece comprises at least two buffer pieces, and further comprises a connecting piece, wherein the connecting piece is arranged in a ring shape, the at least two buffer pieces are distributed around the center of the connecting piece at intervals, and the first buffer part or the second buffer part in each buffer piece is connected to the connecting piece;

the connecting piece and the buffer piece are of an integrated structure;

the connecting piece includes main part ring sum linkage segment, the one end of linkage segment connect in the lateral wall of main part ring, the other end connect in each in the bolster first buffer or the second buffer.

The utility model also provides a motor element, shell and motor body before the motor, the shell includes before the motor:

a front housing body; and

the vibration isolation piece is arranged on the front shell body and is of an integral structure with the front shell body;

the motor body is connected to the front shell body of the motor front shell.

The utility model discloses still provide an electric fan, include:

a mesh enclosure; and

the motor assembly is connected to the mesh enclosure and comprises a front shell and a motor body, and the motor front shell comprises a front shell body and a vibration isolation piece; the vibration isolation piece is arranged on the front shell body and is of an integrated structure with the front shell body; the motor body is connected with the front shell body of the motor front shell;

the vibration isolation piece on the motor front shell in the motor assembly abuts between the motor body and the front shell body and/or between the front shell body and the mesh enclosure.

The technical scheme of the utility model the shell is equipped with the vibration isolation spare before the motor on motor body, can cushion the vibration of connecting the motor body on preceding shell body at the during operation production through this vibration isolation spare, reduces probably on motor body vibration transmission to preceding shell body and/or other objects to the buffering isolation to the vibration source has been realized.

And because the preceding shell body and the vibration isolation piece of the motor front shell in this scheme are structure as an organic whole for both can make through integrated into one piece. Compared with the prior art that the front shell body and the vibration isolating piece of the front shell of the motor are usually manufactured separately and then need to be assembled together manually by complex and time-consuming workers, the vibration isolating piece and the front shell body in the scheme form a whole during manufacturing, the complex and time-consuming manual assembling process of the workers is omitted, and therefore the production efficiency of the front shell of the motor is improved. Simultaneously, vibration isolation spare and motor in this scheme preceding shell structure as an organic whole also can increase joint strength between them to can improve the stability of connecting between them.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of an electric fan according to the present invention;

FIG. 2 is a cross-sectional view of the electric fan of FIG. 1;

fig. 3 is a schematic cross-sectional view of an embodiment of the front housing of the motor of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic structural diagram of an embodiment of the vibration isolating member of the front casing of the motor of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a front casing 10 of a motor.

In an embodiment of the present invention, the motor front case 10 includes a front case body 11 and a vibration isolator 13; the vibration isolator 13 is provided on the front case body 11 and is integrated with the front case body 11.

In an embodiment of the present invention, the front housing body 11 is mainly used to install the motor body 30, so as to support the motor body 30 to bear the weight of and connect the motor body 30 with a foreign object. The vibration isolators 13 may be used to buffer and isolate vibrations generated from the motor body 30 mounted on the front housing body 11 during operation, so as to improve the shaking phenomenon of the electric fan 1000 when the motor front housing 10 is applied to the electric fan 1000. Specifically, the vibration insulator 13 may be used only to abut between the motor body 30 and the front case body 11 to isolate the vibration of the motor body 30 from being transmitted to the front case body 11; the vibration isolation member 13 may be only used to abut between the front housing body 11 and the mesh enclosure 300 of the electric fan 1000, so as to isolate the vibration generated when the front housing body 11 is driven by the motor body 30 from being transmitted to the mesh enclosure 300 of the electric fan 1000; alternatively, the vibration isolator 13 is partially abutted between the motor body 30 and the front housing body 11, and partially abutted between the front housing body 11 and the mesh cover 300 of the electric fan 1000. In addition, the vibration insulator 13 and the front case body 11 may be manufactured by integral injection molding, for example: the vibration insulators 13 may be placed in a mold for molding the front case body 11 in an insert form after the molding of the vibration insulators 13 is completed, so that the vibration insulators 13 and the front case body 11 are integrally connected when the front case body 11 is molded.

The technical scheme of the utility model shell 10 is equipped with vibration isolation 13 on motor body 30 before the motor, can cushion connecting motor body 30 on preceding shell body 11 at the vibration that the during operation produced through this vibration isolation 13, reduces motor body 30 vibration transmission probably on preceding shell body 11 and/or other objects to the buffering to the vibration source has been realized keeping apart.

In addition, the front housing body 11 and the vibration isolator 13 of the front motor housing 10 in this embodiment are integrated, so that they can be manufactured by integral molding. Compared with the prior art that the front shell body 11 and the vibration isolating piece 13 of the motor front shell 10 are usually manufactured separately and then need to be assembled together manually by a complicated and time-consuming worker, the vibration isolating piece 13 and the front shell body 11 in the scheme form a whole during manufacturing, so that the complicated and time-consuming manual assembling process of the worker is omitted, and the production efficiency of the motor front shell 10 is improved. Meanwhile, the vibration isolator 13 and the motor front shell 10 in the scheme are of an integral structure, so that the connection strength of the vibration isolator and the motor front shell can be increased, and the connection stability of the vibration isolator and the motor front shell can be improved.

Referring to fig. 3 and 4, in an embodiment of the present invention, the front housing body 11 is provided with a mounting hole 11a, and the vibration isolator 13 is disposed through the mounting hole 11 a.

It can be understood that the vibration isolator 13 is inserted into the mounting hole 11a, so that the contact area between the vibration isolator 13 and the front housing body 11 is increased, the fastening effect of the front housing body 11 on the vibration isolator 13 is increased, and the stability of fixing the vibration isolator 13 and the front housing body 11 can be improved. The shape of the mounting hole 11a may be circular or square, and the specific shape may be adaptively set according to the shape of the vibration isolator 13, so that it is sufficient to ensure that the mounting hole 11a and the vibration isolator 13 are adapted. The mounting holes 11a may penetrate through two opposite surfaces of the front housing body 11, and the vibration isolators 13 penetrate through two opposite surfaces of the front housing body 11; of course, the mounting hole 11a may be a blind hole, and one end of the vibration isolator 13 is inserted into the front housing body 11.

Referring to fig. 3, 4 and 5, in an embodiment of the present invention, the hole wall of the mounting hole 11a is provided with one of the limiting rib 111 and the limiting groove 13a, the outer sidewall of the vibration isolator 13 is provided with the other of the limiting rib 111 and the limiting groove 13a, and the limiting rib 111 is embedded in the limiting groove 13a and abuts against the groove wall of the limiting groove 13 a.

It can be understood that the vibration isolator 13 can be limited in the direction parallel to the central line of the mounting hole 11a by the matching of the limiting rib 111 and the limiting groove 13a, and the possibility that the vibration isolator 13 slides out of the mounting hole 11a is reduced, so that the stability of fixing the vibration isolator 13 and the front shell body 11 is further improved. The hole wall of the mounting hole 11a may be provided with a limiting rib 111, and the outer side wall of the vibration isolator 13 is provided with a limiting groove 13 a; of course, the hole wall of the mounting hole 11a may be provided with a stopper groove 13a, and the outer side wall of the vibration isolator 13 may be provided with a stopper rib 111.

Referring to fig. 4 and 5, in an embodiment of the present invention, the limiting rib 111 is disposed on the hole wall of the mounting hole 11a and surrounds the central line of the mounting hole 11 a; the stopper groove 13a is provided on the outer side wall of the vibration isolator 13 and is provided so as to surround the side peripheral surface of the vibration isolator 13.

It can be understood that the limiting ribs 111 and the limiting grooves 13a are both arranged in an annular shape, and the contact area between the limiting ribs 111 and the limiting grooves 13a can be increased, so that the limiting effect of the limiting ribs 111 and the limiting grooves 13a on the vibration isolating piece 13 can be improved. Moreover, the intensity of the limiting rib 111 is increased due to the arrangement, and the possibility of breakage of the limiting rib 111 can be avoided, so that the normal and stable limiting of the limiting rib 111 is ensured. Meanwhile, the limiting ribs 111 and the limiting grooves 13a are both arranged in an annular shape, so that the shape of the limiting ribs is regular, and the limiting grooves are convenient to mold. Of course, the present application is not limited thereto, and in other embodiments, the limiting rib 111 may be composed of a plurality of segments spaced around the center line of the mounting hole 11a, and in this case, the limiting groove 13a may be composed of a plurality of groove segments spaced along the side circumferential surface of the vibration isolator 13.

Referring to fig. 4, in an embodiment of the present invention, the depth of the limiting rib 111 embedded in the limiting groove 13a is defined as H, and H is greater than or equal to 1mm and less than or equal to 2 mm.

It can be understood that, when the depth H of the limiting rib 111 embedded into the limiting groove 13a is smaller than 1mm, the embedded depth of the limiting rib 111 is smaller, so that the abutting area between the limiting rib 111 and the limiting groove 13a is relatively smaller, and the limiting effect of the limiting rib 111 and the limiting groove 13a on the vibration isolating piece 13 is easily influenced. When the depth H of the limiting rib 111 embedded into the limiting groove 13a is greater than 2mm, the embedded depth of the limiting rib 111 is large, so that the depth of the limiting groove 13a needs to be relatively large, and the strength of the vibration isolator 13 is easily affected. Therefore, the depth H of the limiting rib 111 embedded into the limiting groove 13a is set to be not less than 1mm and not more than 2mm, so that the limiting effect on the vibration isolation piece 13 can be ensured, and the vibration isolation piece 13 can have certain strength. The depth H of the limiting rib 111 embedded in the limiting groove 13a may be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, or may be any value in the above range. Similarly, the thickness D of the limiting rib 111 in the direction parallel to the center line of the mounting hole 11a is defined as D, and D is equal to or greater than 1mm and equal to or less than 2mm, that is, the thickness D of the limiting rib 111 in the direction parallel to the center line of the mounting hole 11a may also be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, or of course, any value in the above range may also be used.

In an embodiment of the present invention, the number of the limiting ribs 111 is two, and the two limiting ribs 111 are distributed at intervals along the central line direction of the mounting hole 11 a; the number of the limiting grooves 13a is two, and one limiting embedded rib is arranged in one limiting groove 13a and is abutted against the groove wall of the limiting groove 13 a.

It can be understood that the arrangement of the two limiting ribs 111 and the limiting groove 13a increases the clamping limiting effect on the vibration isolator 13, so that the stability of fixing the vibration isolator 13 on the front shell body 11 can be further improved. In addition, the number of the limiting ribs 111 is relatively small, so that the structure of the mounting hole 11a is relatively simple, and the forming and manufacturing of the mounting hole 11a are facilitated. Of course, the present application is not limited thereto, and in other embodiments, the number of the limiting ribs 111 may be one, three or more.

Referring to fig. 3 and 5, in an embodiment of the present invention, the vibration isolator 13 includes a buffer member 131, the buffer member 131 includes a buffer main body 1311, a first buffer portion 1317 and a second buffer portion 1319, the buffer main body 1311 is disposed through the mounting hole 11a, a limiting groove 13a is disposed on an outer sidewall of the buffer main body 1311, and the buffer main body 1311 is defined to have two opposite ends in a direction parallel to a central line of the mounting hole 11 a; the first buffer 1317 is provided at one end of the buffer body 1311; the second buffer 1319 is provided at the other end of the buffer main body 1311.

It can be understood that, referring to fig. 1 and 2 in combination, when the motor front case 10 is applied to the electric fan 1000, the motor body 30 is connected to the front case body 11 of the motor front case 10, and the front case body 11 is connected to the mesh cover 300 of the electric fan 1000. At this time, the first buffer 1317 of the buffer 131 of the vibration isolator 13 may abut between the motor body 30 and the front case body 11 to buffer the vibration generated when the motor body 30 operates, thereby reducing the possibility that the vibration of the motor body 30 is transmitted to the front case body 11. The second buffer portion 1319 may abut between the front case body 11 and the mesh enclosure 300, and buffer the vibration generated when the front case body 11 is driven by the vibration of the motor body 30, thereby reducing the possibility that the vibration of the front case 10 of the motor is transmitted to the mesh enclosure 300. Therefore, the vibration isolation member 13 performs twice buffering and vibration isolation on the vibration source of the electric fan 1000, thereby greatly improving the vibration isolation effect on the motor body 30 and reducing the possibility that the vibration generated by the motor body 30 during operation is transmitted to the mesh enclosure 300 and causes the mesh enclosure 300 to resonate to cause the shaking phenomenon of the electric fan 1000, and further effectively improving the shaking phenomenon of the electric fan 1000. The buffer main body 1311 may be used to connect the first buffer 1317 and the second buffer 1319 of the buffer 131, so that the two may be formed as a single body and be conveniently placed in the mold for molding the front housing body 11 at one time. The buffer member 131 is made of an elastic material (e.g., rubber or silicone), so that when the vibration generated by the foreign object is transmitted to the first buffer portion 1317 and the second buffer portion 1319, the first buffer portion 1317 and the second buffer portion 1319 can deform correspondingly to prevent the vibration from being transmitted from the first buffer portion 1317 and the second buffer portion 1319, thereby isolating the motor body 30. In addition, the present invention is not limited to this, and in other embodiments, the cushion member 131 of the vibration isolator 13 may include only the cushion body 1311 and the first cushion part 1317, or only the cushion body 1311 and the second cushion part 1319.

Referring to fig. 5, in an embodiment of the present invention, the first buffer portion 1317 and the second buffer portion 1319 are both disposed in a ring shape, an inner sidewall of the first buffer portion 1317 is connected to an outer sidewall of one end of the buffer main portion 1311, and an inner sidewall of the second buffer portion 1319 is connected to an outer sidewall of the other end of the buffer main portion 1311.

It is understood that the first buffer portion 1317 and the second buffer portion 1319 are each disposed in a ring shape, i.e., circumferentially along the circumference of the buffer main body portion 1311. In this case, first buffer 1317 and motor body 30 and front case body 11 have a large contact area, and second buffer 1319 and front case body 11 and mesh cover 300 of electric fan 1000 have a large area, so that the vibration damping effect of first buffer 1317 and second buffer 1319 can be improved. In this case, the first and second buffers 1317, 1319 may abut against the two surfaces of the front housing body 11 through which the mounting hole 11a penetrates, and thereby may be engaged and restrained, thereby further improving the fastening force between the front housing body 11 and the vibration insulator 13. In addition, the present invention is not limited to this, and in other embodiments, the first buffer portion 1317 may be formed of a plurality of segments that are disposed at intervals on the side circumferential surface of the buffer main portion 1311, or may be formed of one segment that is disposed at an angle to the buffer main portion 1311; similarly, the second buffer 1319 may be formed of a plurality of segments that are arranged in a spaced-apart manner on the side circumferential surface of the buffer body 1311, or may be formed of a single segment that is arranged at an angle to the buffer body 1311.

Referring to fig. 4 and 5 in combination, in an embodiment of the present invention, the buffering body 1311 includes a first segment 1313 and a second segment 1315; the second section 1315 is connected to one end of the first section 1313, and the cross-sectional area of the second section 1315 is larger than that of the first section 1313; the inner sidewall of the first buffer 1317 is connected to the outer sidewall of the first segment 1313 at the end away from the second segment 1315, and the inner sidewall of the second buffer 1319 is connected to the outer sidewall of the second segment 1315 at the end away from the first segment 1313.

It can be understood that the buffering body 1311 is composed of a first segment 1313 and a second segment 1315, and the area of the cross section of the second segment 1315 is larger than that of the first segment 1313, so that the outer side wall of the first segment 1313, the wall surface of the second segment 1315 facing the first segment 1313, and the wall surface of the first buffering portion 1317 facing the second buffering portion 1319 directly enclose to form a limiting groove 13a, and the complexity of forming the limiting groove 13a is simplified. Of course, the stopper groove 13a provided in the first stage 1313 may be further recessed in the side circumferential surface of the first stage 1313. When two stopper ribs 111 are provided at an interval on the wall of the mounting hole 11a, the side circumferential surface of the second block 1315 may be recessed to form one stopper groove 13 a. In other embodiments, the cross-sectional areas of the buffer main body 1311 are equal (it can be said that the cross-sectional areas of the first segment 1313 and the second segment 1315 are equal), the stopper groove 13a is recessed at an arbitrary position on the side circumferential surface of the buffer main body 1311, and the stopper rib 111 may be provided at a corresponding position.

Referring to fig. 4, in an embodiment of the present invention, the area of the cross section of the second segment 1315 is gradually decreased in the direction that the first segment 1313 is close to the second segment 1315.

It can be understood that the cross-sectional area of the second segment 1315 is gradually reduced, so that the lateral surface of the second segment 1315 forms a guiding slope. At this time, when the vibration isolator 13 and the front housing body 11 are manufactured by integral molding, the installation of the guide slope enables the hole wall of the mounting hole 11a to be correspondingly molded to be a slope, so that the contact area between the vibration isolator 13 and the front housing body 11 is increased, and the tightness between the vibration isolator 13 and the front housing body 11 is further improved. The whole lateral surface of the second segment 1315 may form a guiding slope from the end close to the first segment 1313 to the end far from the first segment 1313, or the partial lateral surface of the second segment 1315 may form a guiding slope from the end close to the first segment 1313 to the end far from the first segment 1313. Of course, the present application is not limited thereto, and in other embodiments, the cross-sectional areas of the second segment 1315 may be equal.

Referring to fig. 2 and 3, in an embodiment of the present invention, the buffering main body 1311 is provided with a connection hole 131a, and the connection hole 131a penetrates through end surfaces of two opposite ends of the buffering main body 1311.

It is understood that the connection hole 131a is provided to allow a fastener (e.g., a screw or a snap) connecting the motor body 30 and the front case body 11 to pass therethrough and abut against the fastener. At this time, it is possible to reduce the possibility that the vibration generated by the motor body 30 during operation is transmitted to the front case body 11 between the fastening members, thereby further improving the vibration isolating effect of the vibration isolating member 13. Meanwhile, a fastening member penetrates through the buffer main body 1311, and the vibration isolator 13 can be further limited and fixed by the fastening member, so that the stability of fixing the vibration isolator 13 is further improved.

In an embodiment of the present invention, the connection hole 131a includes a first hole section 131c and a second hole section 131e, and the first hole section 131c is exposed at an end surface of the buffer main body 1311 near one end of the first buffer 1317; the second hole section 131e is exposed at an end surface of the buffer main body 1311 near an end of the second buffer 1319 and communicated with the first hole section 131c, and the cross-sectional area of the second hole section 131e is larger than that of the first hole section 131 c.

It is understood that the connection hole 131a is composed of a first hole segment 131c and a second hole segment 131e, and the cross-sectional area of the second hole segment 131e is larger than that of the first hole segment 131c, so that the shape of the connection hole 131a can be adapted to the shape of a fastener (e.g., a screw). The fastener can be embedded in the connecting hole 131a so as to better wrap the fastener through the hole wall of the connecting hole 131a, thereby reducing the possibility that the fastener contacts with the front shell body 11 and the mesh enclosure 300, and improving the vibration isolation effect of the fastener. The first hole section 131c may be partially disposed in the first section 1313 of the buffer body 1311, partially disposed in the second section 1315, and entirely disposed in the second section 1315. At this time, the area of the cross section of the second segment 1315 is larger than that of the cross section of the first segment 1313, so that the wall thickness of the buffer main body 1311 is uniform, the molding and manufacturing are facilitated, and meanwhile, the overall volume of the buffer main body 1311 is relatively small, the raw materials used for molding and manufacturing are reduced, and the manufacturing cost is reduced. Of course, the present application is not limited thereto, and in other embodiments, the cross-sectional areas of the connecting holes 131a may be equal, and the fastening part is located outside the connecting holes 131a, and at this time, the position of the mesh cover 300 corresponding to the fastening part is recessed to form an escape space.

In an embodiment of the present invention, the first buffer portion 1317, the buffer main body portion 1311, and the second buffer portion 1319 are integrally formed.

It can be understood that such an arrangement can increase the connection strength of the first buffer portion 1317, the buffer main body portion 1311, and the second buffer portion 1319, thereby increasing the overall strength of the buffer member 131 and contributing to the extension of the lifespan. Meanwhile, the first buffer part 1317, the buffer main body part 1311, and the second buffer part 1319 can be manufactured by integral molding, so that the processing process of the buffer 131 is simplified, and the production efficiency is improved. Of course, the present invention is not limited to this, and in other embodiments, the first buffer part 1317, the buffer main body part 1311, and the second buffer part 1319 may be provided separately, and may be fixed by gluing or snap-fit.

In an embodiment of the present invention, the cross-sections of the first buffer portion 1317, the buffer main body portion 1311, and the second buffer portion 1319 are all circular.

It is understood that the first buffer 1317, the buffer body 1311, and the second buffer 1319 are all cylindrical, and the buffer 131 is regular in shape and easy to mold. Meanwhile, the arrangement is such that the side circumferential surfaces of the cushion member 131 are uniform, so that the mounting directivity does not need to be considered when the cushion member is mounted on the front case body 11, thereby being beneficial to improving the mounting efficiency of the cushion member 131. Of course, the present application is not limited thereto, and in other embodiments, the cross section of the first buffer portion 1317, the buffer body portion 1311, and the second buffer portion 1319 may be square or other shapes.

Referring to fig. 3 and 4, in an embodiment of the present invention, a wall surface of the first buffer portion 1317 away from the second buffer portion 1319 is flush with an end surface of the buffer main portion 1311 near an end of the first buffer portion 1317.

It can be understood that the surface of the first buffer portion 1317 and the end surface of the buffer main body portion 1311 (the surface of the first segment 1313 that is away from the second segment 1315) are flush, so that the first buffer portion 1317, the buffer main body portion 1311 and the surface of the motor body 30 that faces the front housing body 11 can be abutted well, and the abutting effect of the first buffer portion 1317 and the buffer main body portion 1311 is improved, so that the vibration isolation effect of the motor body 30 is improved. Meanwhile, the arrangement can ensure that the position is relatively flat, so that the processing and the forming of the buffer piece 131 are convenient. Similarly, the wall surface of the second buffer portion 1319 facing away from the first buffer portion 1317 may be flush with the end surface of the buffer main body portion 1311 near the end of the second buffer portion 1319 (the surface of the second segment 1315 facing away from the first segment 1313), so that the second buffer portion 1319, the buffer main body portion 1311 and the surface of the mesh cover 300 facing the front shell body 11 are in good abutment, and the abutment effect of the two is improved, thereby improving the vibration isolation effect on the front shell body 11.

Referring to fig. 5, in an embodiment of the present invention, the number of the buffering members 131 is at least two, the vibration isolating member 13 further includes a connecting member 133, the connecting member 133 is disposed in a ring shape, the at least two buffering members 131 are uniformly distributed around the center of the connecting member 133 at intervals, and the first buffering portion 1317 or the second buffering portion 1319 of each buffering member 131 is connected to the connecting member 133.

It can be understood that the number of the buffers 131 is at least two, so that the vibration isolating effect of the vibration isolators 13 on the motor body 30 is improved by increasing the number of the buffers 131. The connecting member 133 is provided so that at least two buffer members 131 can be integrally formed to facilitate the disposal of the vibration isolating member 13. When the buffer members 131 only include the first buffer portion 1317 and the second buffer portion 1319, the connection member 133 connects at least the first buffer portion 1317 and the second buffer portion 1319 of each buffer member 131. When the buffer members 131 further include the buffer body portions 1311, the connecting member 133 connects the first buffer portion 1317 or the second buffer portion 1319 in each buffer member 131; when the cross-sectional area of the second segment 1315 of the buffer main body 1311 is larger than that of the first segment 1313, the connector 133 connects the second buffer 1319 in each buffer 131 for easy installation. In addition, the connecting element 133 is disposed in a ring shape so as to be able to be sleeved outside the front housing body 11, the central line of the connecting element 133 and the axis of the output shaft of the motor body 30 are located on the same straight line, and then the motor body 30 is abutted and vibration-isolated by at least two buffer elements 131, so that the vibration-isolating element 13 has a uniform vibration-isolating effect on each region around the output shaft of the motor body 30. The number of the connecting members 133 may be four, and the four buffering members 131 may be used to abut against and isolate vibration of the upper side, the lower side, the left side, and the right side of the motor assembly 100. At this time, the four buffer members 131 are also provided so that the number of the buffer members 131 is relatively low, thereby enabling reduction in the manufacturing cost of the vibration insulators 13. Of course, the present application is not limited thereto, and in other embodiments, the number of the buffering members 131 may be three, five or more, and the buffering members are spaced around the center of the connecting member 133. In order to make the vibration isolating effect of the vibration isolating members 13 on various portions of the motor assembly 100 more uniform, the plurality of vibration isolating members 133 may be uniformly distributed around the center of the connecting member 133. Further, the connection member 133 may include a body ring 1331 and a connection section 1333, one end of the connection section 1333 being connected to the outer sidewall of the connection ring, and the other end being connected to the first buffer portion 1317 or the second buffer portion 1319 in each buffer member 131. When the cross sections of the main body ring 1331 and the second buffer 1319 are both circular, the connecting section 1333 can be brought into contact with the outer side walls of the two, thereby improving the stability of the connection between the two.

In an embodiment of the present invention, the connecting member 133 and the buffering member 131 are an integral structure.

It can be understood that the connecting member 133 and the buffer member 131 are integrated, so that both can be manufactured by integral molding, thereby simplifying the manufacturing process and improving the production efficiency of the vibration isolating member 13. Meanwhile, the arrangement can also increase the connection strength between the connecting piece 133 and the buffer piece 131, improve the overall strength of the vibration isolator 13 and prolong the service life of the vibration isolator 13.

Please refer to fig. 1 and fig. 2 in combination, the present invention further provides a motor assembly 100, where the motor assembly 100 includes a motor front shell 10 and a motor body 30, and the specific structure of the motor front shell 10 refers to the above embodiments, and since the motor assembly 100 adopts all technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are at least provided, which are not repeated herein. Wherein, the motor body 30 is connected to the front case body 11 of the motor front case 10.

Please refer to fig. 1 and fig. 2 in combination, the present invention further provides an electric fan 1000, the electric fan 1000 includes a mesh enclosure 300 and a motor assembly 100, the specific structure of the motor assembly 100 refers to the above embodiments, and since the electric fan 1000 adopts all technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are at least provided, and are not repeated herein. The vibration isolator 13 on the front motor housing 10 of the motor assembly 100 abuts between the motor body 30 and the front housing body 11 and/or between the front housing body 11 and the mesh enclosure 300. That is, when the cushion member 131 of the vibration isolator 13 includes the cushion main portion 1311, the first cushion portion 1317, and the second cushion portion 1319, the vibration isolator 13 abuts between the motor body 30 and the front case body 11 and between the front case body 11 and the mesh cover 300; when the cushion member 131 of the vibration insulator 13 includes only the cushion main portion 1311 and the first cushion portion 1317, the vibration insulator 13 abuts between the motor body 30 and the front case body 11; when the cushion material 131 of the vibration insulator 13 includes only the cushion main portion 1311 and the second cushion portion 1319, the vibration insulator 13 abuts between the front case body 11 and the mesh cover 300.

Referring to fig. 2, in an embodiment of the present invention, the mesh enclosure 300 includes a front cover and a rear cover 310; the rear cover 310 is connected with the front cover and encloses with the front cover to form an accommodating cavity; the motor front shell 10 and the motor body 30 are located on one side of the rear cover 310 departing from the front cover, and an output shaft of the motor body 30 penetrates through the front shell body 11 and the rear cover 310 of the motor front shell 10 and extends into the accommodating cavity.

It can be understood that the motor body 30 and the motor front shell 10 are disposed on one side of the rear cover 310 away from the front cover, so that the accommodating cavity formed by enclosing the front cover and the rear cover 310 can be relatively smaller, thereby being beneficial to reducing the overall volume of the mesh enclosure 300 and reducing the manufacturing cost of the mesh enclosure 300. In order to facilitate the maintenance and replacement of the components in the mesh enclosure 300, the front enclosure and the rear enclosure 310 may be detachably connected, for example, may be screwed, fastened or magnetically attached, so as to simplify the assembly and disassembly processes of the two.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (9)

1. An electric machine front shell, comprising:

the front shell comprises a front shell body, wherein the front shell body is provided with a mounting hole, and the hole wall of the mounting hole is provided with one of a limiting rib and a limiting groove; and

the vibration isolation piece is arranged on the front shell body and penetrates through the mounting hole, the outer side wall of the vibration isolation piece is provided with the other one of a limiting rib and a limiting groove, the limiting rib is embedded in the limiting groove and abuts against the groove wall of the limiting groove, and the vibration isolation piece and the front shell body are of an integrated structure.

2. The motor front shell as claimed in claim 1, wherein the limiting rib is arranged on the wall of the mounting hole and is arranged around the center line of the mounting hole;

the limiting groove is arranged on the outer side wall of the vibration isolation piece and is arranged along the side peripheral surface of the vibration isolation piece in a surrounding mode.

3. The motor front shell as claimed in claim 2, wherein the depth of the limiting rib embedded in the limiting groove is defined as H, and H is more than or equal to 1mm and less than or equal to 2 mm;

and/or defining the thickness of the limiting rib in the direction parallel to the center line of the mounting hole as D, and satisfying that D is more than or equal to 1mm and less than or equal to 2 mm.

4. The motor front shell as claimed in claim 1, wherein the number of the limiting ribs is two, and the two limiting ribs are distributed at intervals along the direction of the center line of the mounting hole;

the number of the limiting grooves is two, and one limiting rib is embedded in one limiting groove and is abutted against the groove wall of the limiting groove.

5. The motor front case according to any one of claims 2 to 4, characterized in that the vibration insulator comprises a buffer member, the buffer member comprising:

the buffering main body part penetrates through the mounting hole, the limiting groove is formed in the outer side wall of the buffering main body part, and two opposite ends of the buffering main body part are defined in the direction parallel to the central line of the mounting hole;

a first buffer portion provided at one end of the buffer main body portion; and

and a second buffer portion provided at the other end of the buffer main body portion.

6. The front housing of claim 5, wherein the number of the buffer members is at least two, the vibration isolator further comprises a connecting member, the connecting member is disposed in a ring shape, the at least two buffer members are spaced around the center of the connecting member, and the first buffer portion or the second buffer portion of each buffer member is connected to the connecting member.

7. The motor front shell as claimed in claim 1, wherein the limiting rib is circumferentially arranged around a center line of the mounting hole, and the limiting groove is circumferentially arranged along a side circumferential surface of the vibration isolating member;

the number of the limiting ribs is two, the two limiting ribs are distributed at intervals along the direction of the center line of the mounting hole, the number of the limiting grooves is two, and one limiting rib is embedded in the limiting groove and abuts against the groove wall of the limiting groove;

defining the depth of the limiting rib embedded into the limiting groove as H, wherein H is more than or equal to 1mm and less than or equal to 2 mm;

defining the thickness of the limiting rib in the direction parallel to the center line of the mounting hole as D, and satisfying that D is more than or equal to 1mm and less than or equal to 2 mm;

the vibration isolation piece comprises a buffer piece, the buffer piece comprises a buffer main body part, a first buffer part and a second buffer part, the buffer main body part penetrates through the mounting hole, the outer side wall of the buffer main body part is provided with the limiting groove, the buffer main body part is defined to be provided with two opposite ends in the direction parallel to the central line of the mounting hole, the first buffer part is arranged at one end of the buffer main body part, and the second buffer part is arranged at the other end of the buffer main body part;

the first buffer part and the second buffer part are both arranged in a ring shape, the inner side wall of the first buffer part is connected with the outer side wall of one end of the buffer main body part, and the inner side wall of the second buffer part is connected with the outer side wall of the other end of the buffer main body part;

the buffer main body part, the first buffer part and the second buffer part are of an integral structure;

the cross sections of the buffer main body part, the first buffer part and the second buffer part are all circular;

the vibration isolation piece comprises at least two buffer pieces, and further comprises a connecting piece, wherein the connecting piece is arranged in a ring shape, the at least two buffer pieces are uniformly distributed around the center of the connecting piece at intervals, and the first buffer part or the second buffer part in each buffer piece is connected to the connecting piece;

the connecting piece and the buffer piece are of an integrated structure;

the connecting piece includes main part ring sum linkage segment, the one end of linkage segment connect in the lateral wall of main part ring, the other end connect in each in the bolster first buffer or the second buffer.

8. An electric machine assembly, comprising:

a motor front case according to any one of claims 1 to 7; and

the motor body is connected with the front shell body of the front shell of the motor.

9. An electric fan, comprising:

a mesh enclosure; and

the motor assembly is connected to the mesh enclosure, the motor assembly is the motor assembly according to claim 8, and the vibration isolation piece on the front shell of the motor in the motor assembly abuts against the space between the motor body and the front shell body and/or the space between the front shell body and the mesh enclosure.

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