Novel motor rear cover fan

Abstract

The utility model relates to a novel motor rear cover fan, which comprises a motor rear cover, an inner seat body and an outer shell body, the inner seat body and the outer shell body are integrally connected, a plurality of axial flow air ducts are arranged between the inner seat body and the outer shell body, a plurality of air guide convex plates are arranged in the axial flow air ducts, and the air guide convex plates are connected with the motor rear cover. A bearing groove and a circuit board mounting groove are formed in the front part of the inner seat body, a fan mounting seat is arranged at the rear part of the inner seat body, the fan mounting seat comprises a central boss and a raised line radially extending along the central boss, and the outer shell axially and backwards exceeds the inner seat body; the fan mounting seat is provided with at least two raised lines, the fan assembly, the fan base and the cooling fan are arranged on the fan mounting seat, the fan base is fixed on the fan mounting seat through the at least two raised lines, the cooling fan is mounted through the fan base, and the cooling fan conveys axial flow air flow to the axial flow air duct.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a novel motor rear cover fan. BACKGROUND

[0002] The existing motor is more and more high to performance pursuit, and the speed requirement is faster and faster, and the heat dissipation performance of the motor is also higher. The traditional motor relies on natural heat dissipation, and the heat dissipation performance is increased by setting heat dissipation holes on the motor shell, but this way is difficult to meet the demand. SUMMARY

[0003] In view of the above situation, it is necessary to propose a novel motor rear cover fan with superior heat dissipation performance.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme of a novel motor rear cover fan, which comprises:

[0005] The motor rear cover comprises an inner seat body and an outer shell body, the inner seat body and the outer shell body are integrally connected, a plurality of axial flow air ducts are arranged between the inner seat body and the outer shell body, a plurality of air guide protruding plates are arranged in the axial flow air ducts, a bearing groove and a circuit board mounting groove are arranged at the front part of the inner seat body, a fan mounting seat is arranged at the rear part of the inner seat body, the fan mounting seat comprises a center boss and a protruding strip extending radially from the center boss, and the outer shell body axially extends beyond the inner seat body;

[0006] The fan assembly comprises a fan base and a heat dissipation fan, the fan base is fixed on the fan mounting seat through at least two protruding strips, and the heat dissipation fan is installed through the fan base.

[0007] Further, the protruding strip is further provided with an air guide protruding part.

[0008] Further, the height of the center boss and the protruding strip is flush, and the height of the air guide protruding part is lower than the height of the fan base.

[0009] Further, the air guide protruding plate extends rearward and is connected with the protruding strip.

[0010] Further, the inner seat body and the outer shell body are further provided with a bolt cylinder.

[0011] Further, a plurality of positioning protrusions are further arranged on the rear end face of the motor rear cover.

[0012] Further, the fan base is provided with a wiring part, the wiring part is provided with a wire passing channel, and the lead wire of the heat dissipation fan extends out through the wire passing channel.

[0013] Further, the bearing groove is provided with a bearing matched with the motor central shaft.

[0014] Further, a wire passing groove is arranged between the inner seat body and the outer shell body, and the wire passing groove is open forward.

[0015] Further, a control circuit board is arranged in the circuit board mounting groove, and the lead-out wire of the control circuit board extends out of the wire passing groove, and the heat dissipation fan is electrically connected with the control circuit board through the lead-out wire.

[0016] The motor rear cover has an inner seat body and an outer shell body, a plurality of axial flow air ducts are arranged between the inner seat body and the outer shell body, the axial flow air flow can not only dissipate heat of the rear cover, but also dissipate heat of the middle frame in front of the rear cover, the front cover and the motor inner core in the rear cover. The front part of the inner seat body is provided with a bearing groove and a circuit board mounting groove, the control circuit board is built in the circuit board mounting groove and will not be disturbed by the air flow, and the axial flow air flow can dissipate heat of the control circuit board. The rear part of the inner seat body is provided with a fan mounting seat composed of a central boss and radiating convex strips, the fan assembly is mounted behind the mounting seat, the air flow is horizontally guided into the axial flow air duct through the radiating convex strips, and the height of the rear of the outer shell body can make more air flow enter the axial flow air duct. The overall heat dissipation performance of the motor can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of a novel motor rear cover fan of an embodiment of the utility model;

[0018] Figure 2 is an exploded structural schematic diagram of a novel motor rear cover fan of an embodiment of the utility model;

[0019] Figure 3 is a structural schematic diagram of a motor rear cover of a novel motor rear cover fan of an embodiment of the utility model;

[0020] Figure 4 is a structural schematic diagram of another direction of a motor rear cover of a novel motor rear cover fan of an embodiment of the utility model.

[0021] Label explanation:

[0022] 100, motor rear cover; 110, inner seat body; 111, bearing groove; 112, circuit board mounting groove;

[0023] 113, fan mounting seat; 1131, central boss; 1132, convex strip; 1133, air guide convex part;

[0024] 120, outer shell body; 130, axial flow air duct; 140, air guide convex plate; 150, bolt cylinder;

[0025] 160, positioning protrusion; 170, wire passing groove; 200, fan assembly; 210, fan base;

[0026] 211, wire portion; 2111, bottom blocking arm; 2112, top blocking arm; 220, heat dissipation fan. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model a novel motor rear cover fan is further explained in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not used to limit the utility model.

[0028] Please refer to Figures 1-4 A novel motor rear cover fan, comprising:

[0029] The motor rear cover 100 comprises an inner seat body 110 and an outer shell body 120, the inner seat body 110 and the outer shell body 120 are integrally connected, a plurality of axial air ducts 130 are arranged between the inner seat body 110 and the outer shell body 120, a plurality of air guide protruding plates 140 are arranged in the axial air ducts 130, a bearing groove 111 and a circuit board mounting groove 112 are arranged at the front part of the inner seat body 110, a fan mounting seat 113 is arranged at the rear part of the inner seat body 110, the fan mounting seat 113 comprises a central boss 1131 and a protruding strip 1132 extending radially from the central boss 1131, and the outer shell body 120 axially extends rearward beyond the inner seat body 110;

[0030] The fan assembly 200, the fan base 210 and the heat dissipation fan 220, the fan base 210 is fixed on the fan mounting seat 113 through at least two protruding strips 1132, the heat dissipation fan 220 is mounted through the fan base 210, and the heat dissipation fan 220 supplies axial air flow to the axial air duct 130.

[0031] The motor rear cover 100 comprises the inner seat body 110 and the outer shell body 120, a plurality of axial air ducts 130 are arranged between the inner seat body 110 and the outer shell body 120, the axial air flow can not only dissipate heat of the rear cover, but also dissipate heat of the middle frame, the front cover and the motor inner core in the rear cover. The bearing groove 111 and the circuit board mounting groove 112 are arranged at the front part of the inner seat body 110, the control circuit board is arranged in the circuit board mounting groove 112, so that the control circuit board is not disturbed by the air flow and can be cooled by the axial air flow. The fan mounting seat 113 composed of the central boss 1131 and the radial protruding strip 1132 is arranged at the rear part of the inner seat body 110, the fan assembly 200 is arranged at the rear of the mounting seat, the air flow is horizontally guided into the axial air duct 130 through the radial protruding strip 1132, and the height of the rear of the outer shell body 120 can make more air flow enter the axial air duct 130. The overall heat dissipation performance of the motor can be improved.

[0032] Please refer toFigure 2 and Figure 3 The wind guide convex part 1133 is arranged on the convex strip 1132, which can better guide the air flow.

[0033] Preferably, the height of the center boss 1131 and the convex strip 1132 is flush, and the height of the wind guide convex part 1133 is lower than the height of the fan base 210, thereby enhancing the horizontal wind guide effect.

[0034] Please refer to Figures 1-3 The wind guide convex plate 140 extends backward and is connected with the convex strip 1132, so that the air flow can enter the axial flow air duct 130 more smoothly.

[0035] Please refer to Figure 4 The inner seat body 110 and the outer shell 120 are further provided with a bolt cylinder 150, which facilitates the bolts to pass through the middle frame and the front cover connected with the motor shell.

[0036] Please refer to Figure 4 The rear end surface of the motor rear cover 100 is further provided with a plurality of positioning protrusions 160, which facilitate pre-positioning during installation, so that the bolt cylinder 150 of the rear cover can be aligned with the bolt hole of the middle frame.

[0037] Please refer to Figure 2 The fan base 210 is provided with a wire routing part 211, which is provided with a wire passing channel through which the lead wire of the heat dissipation fan 220 extends. In particular, the wire routing part 211 includes a bottom blocking arm 2111 and a top blocking arm 2112, which are arranged at intervals, so that the lead wire can be more conveniently limited in the wire passing channel.

[0038] It can be understood that the bearing groove 111 is provided with a bearing which is matched with the motor center shaft. It can be understood that the control circuit board has an avoiding hole through which the center shaft passes.

[0039] Please refer to Figure 4 The inner seat body 110 and the outer shell 120 are provided with a wire passing groove 170 which is open forward. The wire passing groove 170 which is open forward can avoid being disturbed by the air flow, and at the same time facilitate the setting of a plug for sealing.

[0040] It can be understood that the circuit board mounting groove 112 is provided with a control circuit board, and the lead wire of the control circuit board extends outward from the wire passing groove 170, and the heat dissipation fan 220 is electrically connected with the control circuit board through the lead wire.

[0041] It should be noted that if the embodiment of the utility model has directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indication also changes accordingly.

[0042] In addition, if the embodiment of the utility model has the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature.

[0043] In summary, the utility model provides a novel motor rear cover fan, the motor rear cover has inner seat body and outer shell, a plurality of axial flow air ducts are arranged between the inner seat body and the outer shell, the axial flow air flow can not only heat dissipation for the rear cover, the middle frame in front of the rear cover, the front cover and the motor inner core in it. The front part of the inner seat body is provided with a bearing groove and a circuit board mounting groove, the control circuit board is built in the circuit board mounting groove and will not be disturbed by the air flow, and the axial flow air flow can heat dissipation for the control circuit board. The rear part of the inner seat body is provided with a fan mounting seat composed of a center boss and a radiating convex strip, the fan assembly is installed behind the mounting seat, the air flow is horizontally guided into the axial flow air duct through the radiating convex strip, and the height of the rear of the outer shell can make more air flow enter the axial flow air duct. The overall heat dissipation performance of the motor can be improved.

[0044] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above, however, it is not used to limit the utility model, any skilled person in the art can make some changes or modifications to the equivalent embodiments with the disclosed technical content without departing from the technical solution range of the utility model, as long as it does not depart from the technical solution content of the utility model, any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, all still belong to the range of the technical solution of the utility model.

Claims

1. A new type of motor back cover fan, characterized in that, The application relates to a motor rear cover. The motor rear cover comprises an inner seat body and an outer shell body, the inner seat body and the outer shell body are integrally connected, a plurality of axial air ducts are arranged between the inner seat body and the outer shell body, a plurality of air guide protruding plates are arranged in the axial air ducts, a bearing groove and a circuit board mounting groove are arranged at the front part of the inner seat body, a fan mounting seat is arranged at the rear part of the inner seat body, the fan mounting seat comprises a center boss and a convex strip extending along the center boss, and the outer shell body axially extends beyond the inner seat body. A fan assembly, a fan base and a cooling fan, the fan base is fixed on the fan mounting seat through at least two convex strips, the cooling fan is mounted through the fan base, and the cooling fan supplies axial air flow to the axial air ducts.

2. A new type of motor back cover fan according to claim 1, characterized in that, Air guide protruding parts are further arranged on the convex strips.

3. A new type of motor back cover fan according to claim 2, characterized in that, The height of the center boss and the convex strip is flush, and the height of the air guide protruding parts is lower than the height of the fan base.

4. A new type of motor back cover fan according to any one of claims 1-3, characterized in that, The air guide protruding plates extend backward and are connected with the convex strips.

5. A new type of motor back cover fan according to claim 1, characterized in that, A bolt cylinder is further arranged between the inner seat body and the outer shell body.

6. A new type of motor back cover fan according to claim 1, characterized in that, A plurality of positioning protrusions are further arranged on the rear end surface of the motor rear cover.

7. A new type of motor back cover fan according to claim 1, characterized in that, The fan base is provided with a wiring part, the wiring part is provided with a wire passing channel, and the lead wire of the cooling fan extends out through the wire passing channel.

8. A new type of motor back cover fan according to claim 1, characterized in that, A bearing is arranged in the bearing groove, and the bearing is matched with a motor center shaft.

9. A new type of motor back cover fan according to claim 1, characterized in that, A wire passing groove is arranged between the inner seat body and the outer shell body, and the wire passing groove is open forward.

10. A new type of motor back cover fan according to claim 9, characterized in that, A control circuit board is arranged in the circuit board mounting groove, the lead-out wire of the control circuit board extends out and outward from the wire passing groove, and the cooling fan is electrically connected with the control circuit board through the lead wire.

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