Capacitor cover and motor

Abstract

The utility model relates to the technical field of motors, in particular to a capacitor cover and a motor, the capacitor cover is applied to the motor, the motor comprises a shell and a capacitor arranged outside the shell, the capacitor cover covers the capacitor, the capacitor cover comprises a cover body and a mounting lug arranged on the cover body, the mounting lug is provided with a connecting part extending in the axial direction of the shell, and the connecting part is connected with the shell. The capacitor cover is connected with the casing through the connecting part, so that the capacitor cover is convenient to assemble, the production efficiency of the motor is improved, and the assembling reliability can be ensured.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a capacitor cover and a motor. Background Art

[0002] Capacitors are almost indispensable energy storage components in electronic circuits. When capacitors are installed on motors, they form capacitor motors. Capacitor motors have good starting performance, namely large starting torque and small starting current. They are widely used in industries such as industry, agriculture, transportation, national defense engineering, and medical equipment. Capacitors are usually placed in capacitor covers, which are then fixed to the motor housing. The existing capacitor cover installation method is relatively complicated, and it is easy to get loose after being installed on the motor, and the assembly reliability is low. Utility Model Content

[0003] The purpose of the present application is to provide a capacitor cover and a motor, wherein the capacitor cover is convenient to assemble, improves the production efficiency of the motor, and ensures the reliability of assembly.

[0004] To this end, on the first aspect, an embodiment of the present application provides a capacitor cover, which is applied to a motor. The motor includes a casing and a capacitor arranged outside the casing. The capacitor cover is arranged outside the capacitor. The capacitor cover includes a cover body and mounting ears arranged on the cover body. The mounting ears are provided with a connecting portion extending along the axial direction of the casing, and the capacitor cover is connected to the casing via the connecting portion.

[0005] In a possible implementation, a connecting ear plate is provided on the outer circumferential surface of the housing, a connecting hole extending along the axial direction of the housing is provided on the connecting ear plate, and the connecting portion is fastened to the connecting hole.

[0006] In one possible implementation, two mounting ears are provided, and the two mounting ears are symmetrically arranged with respect to each other. The mounting ears include a fixing portion, and the fixing portion has a fixing surface for fitting the connecting ear plate, and the fixing surface is perpendicular to the central axis of the housing, and the connecting portion is an assembly hole or a fastener arranged on the fixing portion.

[0007] In a possible implementation, the mounting ear further includes a fitting portion, which connects the cover body and the fixing portion.

[0008] In a possible implementation, a yield notch is provided at the connection between the fixing portion and the fitting portion, and the height e of the yield notch satisfies the following relationship: e≥d, and the width f of the yield notch satisfies the following relationship: f≥d, wherein d is the thickness of the mounting ear.

[0009] In a possible implementation, a shock-absorbing pad is provided on a side of the fitting portion facing the housing, and the shock-absorbing pad abuts against an outer peripheral surface of the housing.

[0010] In a possible implementation, a side of the cover body facing the housing is provided with an arc surface abutting against an outer peripheral surface of the housing, and a radius of the arc surface is equal to an outer circle radius of the housing.

[0011] In a possible implementation, the cover body includes a bottom cover away from the housing and side panels arranged around the bottom cover, the bottom cover, the side panels and the housing enclose a cavity for accommodating the capacitor, and the bottom cover is provided with a drainage hole connected to the cavity.

[0012] In a possible implementation, a funnel-shaped sink is provided at one end of the drainage hole connected to the cavity.

[0013] In a possible implementation, a heat dissipation hole communicating with the cavity is provided on the side plate.

[0014] In a possible implementation, a shutter is provided on a side of the side plate away from the cavity, and the shutter cover is provided on the outer side of the heat dissipation hole.

[0015] In a possible implementation, one end of the shutter is connected to the top of the heat dissipation hole, and the other end extends obliquely in a direction away from the cover body.

[0016] In a second aspect, an embodiment of the present application provides a motor, comprising: a casing; a capacitor, disposed outside the casing; and the above-mentioned capacitor cover, wherein the capacitor cover is disposed outside the capacitor.

[0017] According to the capacitor cover and motor provided in the embodiment of the present application, the capacitor cover is connected to the casing of the motor through the mounting ears on the cover body, which facilitates assembly and improves the production efficiency of the motor. Moreover, the connecting part of the mounting ears extends along the axial direction of the casing. After the capacitor cover is connected to the casing through the connecting part, the capacitor cover can be effectively limited in the radial direction to prevent the capacitor cover from loosening, thereby ensuring the reliability of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a capacitor cover provided in an embodiment of the present application is shown;

[0022] Figure 2 A schematic diagram showing the structure of a capacitor cover from a side view provided in an embodiment of the present application is shown;

[0023] Figure 3 A schematic diagram showing the structure of a capacitor cover provided by an embodiment of the present application from a top view perspective;

[0024] Figure 4 A schematic diagram of a planar structure of a capacitor cover provided in an embodiment of the present application is shown;

[0025] Figure 5 A schematic diagram of the structure of a capacitor cover after being unfolded is shown in the embodiment of the present application;

[0026] Figure 6 Show Figure 5 A local enlarged structural schematic diagram;

[0027] Figure 7 A schematic diagram of the three-dimensional structure of a motor provided in an embodiment of the present application is shown;

[0028] Figure 8 A partially cutaway structural schematic diagram of a motor provided in an embodiment of the present application is shown.

[0029] Description of reference numerals:

[0030] 1. housing; 11. arc surface; 12. bottom cover; 121. drainage hole; 1211. sink; 13. side plate; 131. heat dissipation hole; 132. shutter; 133. wire outlet hole;

[0031] 2. Mounting ear; 21. Connecting portion; 22. Fixing portion; 221. Fixing surface; 23. Fitting portion; 24. Yield notch;

[0032] 3. housing; 31. connecting ear plate;

[0033] 4. Capacitor; 5. Shock-absorbing pad; 6. Bracket; 7. Bellows. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0035] The disclosure below provides many different embodiments or examples to realize the different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present application. In addition, the embodiments of the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0036] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0037] In order to solve the problems in the prior art, the present application provides a capacitor cover and a motor, which is convenient for assembly, improves the production efficiency of the motor, and ensures the reliability of assembly.

[0038] Figure 1 A schematic diagram of the three-dimensional structure of a capacitor cover provided in an embodiment of the present application is shown; Figure 2 A schematic diagram showing the structure of a capacitor cover from a side view provided in an embodiment of the present application is shown; Figure 3 A schematic diagram showing the structure of a capacitor cover provided by an embodiment of the present application from a top view perspective; Figure 4 A schematic diagram of a planar structure of a capacitor cover provided in an embodiment of the present application is shown; Figure 5 A schematic diagram of the structure of a capacitor cover after being unfolded is shown in the embodiment of the present application; Figure 6 Show Figure 5 Schematic diagram of the local enlarged structure at A.

[0039] like Figure 1-6As shown, an embodiment of the present application provides a capacitor cover, which is applied to a motor. The motor includes a housing 3 and a capacitor 4 arranged outside the housing 3. The capacitor cover is arranged outside the capacitor 4. The capacitor cover includes a cover body 1 and a mounting ear 2 arranged on the cover body 1. The mounting ear 2 is provided with a connecting portion 21 extending along the axial direction of the housing 3. The capacitor cover is connected to the housing 3 through the connecting portion 21.

[0040] In the present application, the motor casing 3 is connected through the mounting ears 2 on the cover body 1, which facilitates assembly and improves the motor production efficiency. The connecting portion 21 of the mounting ears 2 extends along the axial direction of the casing 3. After the capacitor cover is connected to the casing 3 through the connecting portion 21, the capacitor cover can be effectively limited in the radial direction to prevent the capacitor cover from loosening, thereby ensuring the reliability of assembly.

[0041] In the related art, the capacitor cover of the existing motor is generally fixed to the motor housing 3 by four mounting bolts, and multiple positioning is required during the installation process, and the installation procedure is relatively cumbersome. In addition, there is a large vibration during the operation of the motor, which can easily cause the capacitor cover to loosen. The loosened capacitor cover will further increase the collision with the housing 3, thereby generating a large noise; finally, the capacitor cover falls off, causing the capacitor 4 to lose protection.

[0042] In the embodiment of the present application, mounting ears 2 are respectively provided at both ends of the cover body 1, and the connecting portion 21 on the mounting ears 2 is provided along the axial direction of the housing 3. After the mounting ears 2 are connected to the housing 3, even if the motor vibrates, the capacitor cover will not loosen, thereby ensuring the reliability of the capacitor cover assembly.

[0043] In the related art, the capacitor 4 in the capacitor cover is in direct contact with the housing 3, and the excessively high temperature of the housing 3 is transmitted to the capacitor 4, which is likely to exceed the working limit temperature of the capacitor 4, indicating that the capacitor 4 is prone to explosion or fire and other safety hazards. The existing capacitor cover is generally made of plastic material and does not have an explosion-proof function. The capacitor cover in the embodiment of the present application is made of metal material and has a good explosion-proof function. When the capacitor 4 explodes or catches fire due to extreme working conditions, the loss can be reduced to a minimum.

[0044] In some embodiments, a connecting ear plate 31 is provided on the outer circumferential surface of the housing 3 , a connecting hole extending along the axial direction of the housing 3 is provided on the connecting ear plate 31 , and the connecting portion 21 is fastened to the connecting hole.

[0045] Specifically, the motor housing 3 is composed of two half bodies buckled together, and the buckled positions of the two half bodies form a connecting ear plate 31, and the two half bodies are connected through the connecting ear plate 31. The capacitor cover in the present application can be directly matched with the connecting hole on the connecting ear plate 31 through the connecting portion 21, and there is no need to further process other holes for installing the capacitor cover on the housing 3. Moreover, the connecting hole on the connecting ear plate 31 and the connecting portion 21 on the mounting ear 2 are both extended along the axial direction of the housing 3. When the connecting hole and the connecting portion 21 are connected by bolts, the bolts themselves can limit the housing 3 and the capacitor cover, thereby preventing the capacitor cover from loosening.

[0046] like Figure 3-4 As shown, in some embodiments, two mounting ears 2 are provided, and the two mounting ears 2 are centrally symmetrically arranged with respect to each other. The mounting ears 2 include a fixing portion 22, and the fixing portion 22 has a fixing surface 221 for fitting the connecting ear plate 31, and the fixing surface 221 is perpendicular to the central axis of the housing 3, and the connecting portion 21 is an assembly hole or a fastener arranged on the fixing portion 22.

[0047] In the present application, the two mounting ears 2 are respectively located at the two ends of the cover body 1 near the middle, and are arranged symmetrically with each other, that is, one of the mounting ears 2 can be overlapped with the other mounting ear 2 by rotating 180° around the central symmetry point, and the fixing surfaces 221 of the two fixing parts 22 are respectively perpendicular to the central axis of the casing 3, and the two fixing surfaces 221 overlap after rotating 180° around the symmetry point, so that the fixing parts 22 of the two mounting ears 2 can limit the capacitor cover in the axial direction of the casing 3 to prevent the capacitor cover from moving along the axial direction, thereby further ensuring the fixing effect of the capacitor cover.

[0048] Specifically, when the connecting part 21 is an assembly hole, the mounting ear 2 and the casing 3 are fastened by bolts after being aligned with the connecting hole, and the assembly hole casing is punched out directly on the mounting ear 2, which facilitates the processing and forming of the capacitor cover; when the connecting part 21 is a fastener, the connecting part 21 is a stud fixed on the fixing part 22, and the stud is fastened with the nut after passing through the connecting hole, thereby realizing the fastening of the mounting ear 2 and the casing 3.

[0049] In some embodiments, the mounting ear 2 further includes a fitting portion 23 , and the fitting portion 23 connects the cover body 1 and the fixing portion 22 .

[0050] In the present application, the fixing portion 22 is connected to the cover body 1 through the fitting portion 23, and the fitting portion 23 is consistent with the extension direction of the cover body 1, so that the fixing portion 22 can be located in the radial plane of the motor, thereby ensuring that the fixing portion 22 can be relatively arranged with respect to the axial direction of the motor. On the basis of completing the fixation of the cover body 1, the cover body 1 can also be limited along the axial direction to ensure the stability of the installation of the cover body 1.

[0051] In some embodiments, a yield notch 24 is provided at the connection between the fixing portion 22 and the fitting portion 23 , and the height e of the yield notch 24 satisfies the following relationship: e≥d, and the width f of the yield notch 24 satisfies the following relationship: f≥d, wherein d is the thickness of the mounting ear 2 .

[0052] In the present application, because the fixing portion 22 and the fitting portion 23 are formed by bending, a "yield bending axis" can be formed during the bending process through the yield notch 24, and the deformation stress during the bending process is released, so that the bending yield position can be located more accurately, thereby ensuring the accuracy of the plane where the fixing portion 22 is located, and further improving the assembly accuracy.

[0053] Specifically, by making e and f greater than or equal to the thickness d of the base material, the yield effect formed during the bending process can be ensured. As e and f become larger, the yield effect formed during the bending process becomes more obvious, but if e and f are too large, the toughness strength of the fixing portion 22 will deteriorate.

[0054] As a preferred embodiment, the sizes of d and f are: d≤e≤2d; d≤f≤2d, which can ensure the toughness strength of the connection and the yield effect of the bending, thereby ensuring the bending accuracy.

[0055] In some embodiments, a shock-absorbing pad 5 is provided on a side of the fitting portion 23 facing the housing 3 , and the shock-absorbing pad 5 abuts against an outer peripheral surface of the housing 3 .

[0056] In the present application, the fitting portion 23 is used to abut the outer peripheral surface of the casing 3. By arranging a shock-absorbing pad 5 on the fitting portion 23, and the shock-absorbing pad 5 is located between the motor casing 3 and the fitting portion 23, the resonance noise generated by the rotation of the motor can be further alleviated, and the vibration of the motor can be prevented from being transmitted to the capacitor cover, thereby achieving the effect of reducing noise and improving the stability of the capacitor cover.

[0057] Specifically, the fitting portion 23 of the mounting ear 2 fits with the outer peripheral surface of the motor housing 3 through the shock-absorbing pad 5, so that the capacitor cover can be positioned in the radial direction of the motor, and the two fixing portions 22 are arranged relatively to each other and connected to the motor housing 3, so that the capacitor cover can be positioned along the axial direction of the motor, thereby improving the fixing effect of the capacitor cover.

[0058] In some embodiments, a side of the cover body 1 facing the housing 3 is provided with an arc surface 11 abutting against the outer peripheral surface of the housing 3 , and the radius of the arc surface 11 is equal to the outer circle radius of the housing 3 .

[0059] In the present application, after the mounting ear 2 of the capacitor cover is connected to the housing 3 of the motor, the arc surface 11 of the cover body 1 just fits with the outer peripheral surface of the housing 3, further ensuring the stability of the capacitor cover after assembly.

[0060] In some embodiments, the cover body 1 includes a bottom cover 12 away from the housing 3 and side panels 13 arranged around the bottom cover 12. The bottom cover 12, the side panels 13 and the housing 3 enclose a cavity for accommodating the capacitor 4. The bottom cover 12 is provided with a drainage hole 121 connected to the cavity.

[0061] In the present application, the cover body 1 is installed at the bottom of the casing 3, the bottom cover 12 is opposite to the casing 3, and is surrounded by four side panels 13. The four side panels 13, the bottom cover 12 and the casing 3 of the motor form a cavity, and the capacitor 4 is protected by the cavity.

[0062] In the related art, a large amount of heat is generated during the operation of the motor, which makes the internal temperature of the motor higher, while the external environment temperature is lower, resulting in the surface temperature of the motor housing 3 being lower than that of the inside of the motor. When the water vapor in the air encounters the external surface of the motor housing 3, it is affected by the surface temperature and becomes liquid water, forming condensed water that slides along the surface of the motor housing 3 and falls into the inside of the capacitor cover, which is prone to short circuit of the capacitor 4 inside the capacitor cover, posing an electrical safety hazard.

[0063] In the embodiment of the present application, the condensed water in the capacitor cover can be discharged in time through the drainage hole 121 on the bottom cover 12, thereby avoiding the phenomenon of short circuit of the capacitor 4 in the capacitor cover due to short circuit, thereby improving safety.

[0064] Furthermore, one end of the drainage hole 121 connected to the cavity is a funnel-shaped sink 1211 .

[0065] In the present application, by setting the top of the drainage hole 121 as a sink 1211, the condensed water in the capacitor cover is easily discharged, the accumulation of liquid in the capacitor cover is avoided, and the drainage effect of the capacitor cover is further improved.

[0066] In some embodiments, the side plate 13 is provided with a heat dissipation hole 131 communicating with the cavity.

[0067] In the present application, the heat in the capacitor cover can be dissipated in time through the heat dissipation holes 131 on the side plate 13, avoiding the situation where the temperature in the capacitor cover is too high and exceeds the limit operating temperature of the capacitor 4, thereby damaging the capacitor 4, thereby ensuring the service life of the capacitor 4.

[0068] In some embodiments, a louver 132 is disposed on a side of the side plate 13 away from the cavity, and the louver 132 is disposed to cover the outer side of the heat dissipation hole 131 .

[0069] In the present application, by setting a shutter 132 on the outside of the heat dissipation hole 131, water in the axial direction can be prevented from entering the capacitor cover through the heat dissipation hole 131, while ensuring that the heat in the capacitor cover can be effectively discharged, thereby increasing the service life of the capacitor 4.

[0070] Furthermore, one end of the shutter 132 is connected to the top of the heat dissipation hole 131 , and the other end thereof is inclined to extend away from the cover body 1 .

[0071] In the present application, one end of the shutter 132 is connected to the top of the heat dissipation hole 131, and the other end extends obliquely away from the cover body 1, thereby covering the heat dissipation hole 131. The heat in the capacitor cover is dissipated from the bottom of the shutter 132 through the heat dissipation hole 131, and the shutter 132 can prevent external moisture from entering.

[0072] Specifically, the length of the louver 132 along the depth direction of the heat dissipation hole 131 is a, and the length of the louver 132 along the width direction of the heat dissipation hole 131 is b, wherein the angle α between a and b is 90°.

[0073] Furthermore, the louvers 132 are formed by punching on the side plate 13 , and the heat dissipation holes 131 and the louvers 132 are generated simultaneously. The louvers 132 may have a planar structure, an inclined structure, or a curved structure.

[0074] Specifically, a wire outlet hole 133 is also provided on the cover body 1. The motor lead wire is connected to the capacitor 4 and placed in the capacitor cover, and the capacitor cover is fixed to the casing 3 by screws. The remaining external lead wires pass through the wire outlet hole 133 on the capacitor cover and out of the bellows 7. The bellows 7 can protect and support the power cord.

[0075] The capacitor cover is connected to the motor casing 3 via the mounting ears 2 on the cover body 1, which facilitates assembly and improves the motor production efficiency. Moreover, the connecting portion 21 of the mounting ears 2 extends along the axial direction of the casing 3. After the capacitor cover is connected to the casing 3 via the connecting portion 21, the capacitor cover can be effectively limited in the radial direction to prevent the capacitor cover from loosening, thereby ensuring the reliability of assembly.

[0076] An embodiment of the present application provides a motor, including: a housing 3; a capacitor 4, which is arranged outside the housing 3; and the above-mentioned capacitor cover, which is arranged outside the capacitor 4.

[0077] Figure 7 A schematic diagram of the three-dimensional structure of a motor provided in an embodiment of the present application is shown; Figure 8 A partially cutaway structural schematic diagram of a motor provided in an embodiment of the present application is shown.

[0078] like Figure 7-8 As shown, an embodiment of the present application provides a motor, comprising: a housing 3; a capacitor 4, which is arranged outside the housing 3; and the above-mentioned capacitor cover, which is arranged outside the capacitor 4.

[0079] In the present application, a rotor assembly, a stator assembly, etc. are arranged in the housing 3 of the motor. The motor further comprises a bracket 6 and a bellows 7, wherein the bracket 6 is used to support the housing 3 of the motor, and the bellows 7 is connected to the outlet hole 133 of the capacitor cover, and the capacitor 4 is protected by the capacitor cover. The capacitor cover can be connected to the housing 3 of the motor only through the mounting ears 2 on both sides, and the capacitor cover can be prevented from moving in the axial direction, thereby improving the fixing effect of the capacitor cover.

[0080] The preparation method of the capacitor cover mainly includes:

[0081] 1. Design and manufacture molds: According to the requirements of the product design drawings, formulate appropriate mold design plans, and use CNC machine tools and other equipment to manufacture the mold upper mold, lower mold and mold base.

[0082] 2. Material preparation: Select appropriate metal base material according to product requirements, preferably cold-rolled steel plate or hot-dip galvanized plate.

[0083] 3. Loading: Place the metal sheet in a specific position on the punch or press and fix it in place for the next stamping operation.

[0084] 4. Stamping operation: Start the stamping press or press machine, and apply pressure to the metal sheet to make it plastically deform, so as to stamp out the required parts. The unfolded plan of the capacitor cover can be pre-stamped, and then each feature stamping can be completed according to the product size requirements. The stamping operation can include multiple steps and times to obtain the final required product shape and size.

[0085] 5. Finished capacitor cover processing: After stamping, the finished product needs to be processed, including removing excess material, cleaning, heat treatment, surface treatment and other processing processes to meet the requirements and specifications of the product.

[0086] 6. Inspection and quality control: Inspect the stamped products to ensure that their quality meets the requirements, including dimensional measurement, appearance inspection, material testing, etc.

[0087] 7. Motor assembly: Assemble the motor body, bracket, rubber ring, buckle, connecting rod, capacitor, capacitor cover, connector, bellows, locking screws and other components in a specific order. After the motor lead wire is connected to the capacitor, place the capacitor inside the metal capacitor cover and fix the capacitor cover to the casing with the locking screws.

[0088] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0089] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0090] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A capacitor cover, applied to a motor, the motor comprising a housing (3) and a capacitor (4) arranged outside the housing (3), characterized in that: The capacitor cover is arranged outside the capacitor (4), and the capacitor cover comprises a cover body (1) and a mounting ear (2) arranged on the cover body (1); the mounting ear (2) is provided with a connecting portion (21) extending along the axial direction of the housing (3); and the capacitor cover is connected to the housing (3) via the connecting portion (21).

2. The capacitor cover according to claim 1, characterized in that: A connecting ear plate (31) is provided on the outer peripheral surface of the casing (3), and a connecting hole extending along the axial direction of the casing (3) is provided on the connecting ear plate (31), and the connecting portion (21) is tightly connected to the connecting hole.

3. The capacitor cover according to claim 2, characterized in that: Two mounting ears (2) are provided, and the two mounting ears (2) are arranged symmetrically with respect to each other. The mounting ears (2) include a fixing portion (22), and the fixing portion (22) has a fixing surface (221) for fitting the connecting ear plate (31). The fixing surface (221) is perpendicular to the central axis of the housing (3), and the connecting portion (21) is an assembly hole or a fastener provided on the fixing portion (22).

4. The capacitor cover according to claim 3, characterized in that: The mounting ear (2) further comprises a fitting portion (23), wherein the fitting portion (23) connects the cover body (1) and the fixing portion (22).

5. The capacitor cover according to claim 4, characterized in that: A yield notch (24) is provided at the connection between the fixing portion (22) and the fitting portion (23), the height e of the yield notch (24) satisfies the following relationship: e≥d, and the width f of the yield notch (24) satisfies the following relationship: f≥d, wherein d is the thickness of the mounting ear (2).

6. The capacitor cover according to claim 4, characterized in that: A shock-absorbing pad (5) is provided on the side of the fitting portion (23) facing the housing (3), and the shock-absorbing pad (5) abuts against the outer peripheral surface of the housing (3).

7. The capacitor cover according to claim 1, characterized in that: A circular arc surface (11) abutting against the outer peripheral surface of the housing (3) is provided on the side of the cover body (1) facing the housing (3), and the radius of the circular arc surface (11) is equal to the outer circle radius of the housing (3).

8. The capacitor cover according to claim 1, characterized in that: The cover body (1) comprises a bottom cover (12) away from the housing (3) and side panels (13) arranged around the bottom cover (12); the bottom cover (12), the side panels (13) and the housing (3) enclose a cavity for accommodating the capacitor (4); and the bottom cover (12) is provided with a drainage hole (121) connected to the cavity.

9. The capacitor cover according to claim 8, characterized in that: A funnel-shaped sink (1211) is provided at one end of the drainage hole (121) connected to the cavity.

10. The capacitor cover according to claim 8, characterized in that: The side plate (13) is provided with a heat dissipation hole (131) which is in communication with the cavity.

11. The capacitor cover according to claim 10, characterized in that: A louver (132) is provided on a side of the side plate (13) away from the cavity, and the louver (132) is arranged to cover the outside of the heat dissipation hole (131).

12. The capacitor cover according to claim 11, characterized in that: One end of the shutter (132) is connected to the top of the heat dissipation hole (131), and the other end extends obliquely in a direction away from the cover body (1).

13. A motor, characterized in that: include: Housing (3); A capacitor (4) is arranged outside the housing (3); as well as The capacitor cover according to any one of claims 1 to 12, wherein the capacitor cover is arranged outside the capacitor (4).

Images