Upper end cover, motor casing and motor thereof

Abstract

The invention relates to an upper end cover, which belongs to a component of a motor and mainly solves the technical problems that the existing motor cannot work underwater for a long time, is poor in waterproof sealing performance, high in maintenance cost, low in operation efficiency and the like. According to the technical scheme, the upper end cover is fixed to a machine shell, the upper end cover comprises a plurality of upper end face parts and an upper end step part, the upper end face parts comprise the upper end face of the upper end cover and are different in height, the upper end step part is formed on the upper end face of the upper end cover, and the upper end step part is arranged on the upper end face of the upper end cover. The upper end step portion is located between adjacent upper end surface portions among the plurality of upper end surface portions, the plurality of upper end surface portions of the upper end cover include a first upper end surface portion to an nth upper end surface portion, and the height of the nth upper end surface portion is higher than that of the (n-1) th upper end surface portion. Meanwhile, the height of the nth upper end surface part is lower than that of the (n-2) th upper end surface part; the motor is mainly applied to motors.

Description

Technical Field

[0001] The invention relates to the technical field of underwater operation of oil-cooled motors, in particular to an upper end cover, a motor shell and a motor thereof. Background Art

[0002] At present, the improvement of the motor sealing structure in the existing motors is usually to connect an oil seal to the end cover shaft to seal the motor. Some motors also have a mechanical seal in the upper end cover to seal the motor. Some motors also have two mechanical seals in the upper end cover to seal the motor together. The existing motors cannot guarantee long-term underwater operation, and cannot solve the problem that when the motor is working underwater, external water enters the motor, causing the motor to be damaged and stop working, thereby increasing the motor maintenance cost and reducing the motor working efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide an upper end cover, a motor housing and a motor thereof which can work underwater for a long time, have strong sealing performance and reduce production cost and maintenance cost.

[0004] The technical solution adopted by the present invention to solve the technical problem is: A top cover, fixed on a casing, comprising a plurality of top face portions and an upper step portion, wherein the plurality of top face portions include the top face of the top cover and have different heights, the upper step portion is formed on the top face of the top cover, and the upper step portion is located between adjacent top face portions among the plurality of top face portions, the plurality of top face portions of the top cover comprise a first top face portion to an nth top face portion, the height of the nth top face portion is higher than the height of the (n-1)th top face portion, and the height of the nth top face portion is lower than the height of the (n-2)th top face portion, and the first top face portion to the nth top face portion are arranged in an inward direction along the upper periphery of the top cover, wherein n is an integer greater than 3.

[0005] The multiple upper end face portions of the upper end cover of the present invention include a first upper end face portion, a second upper end face portion and a third upper end face portion, the height of the third upper end face portion is higher than the height of the second upper end face portion, and the height of the third upper end face portion is lower than the height of the first upper end face portion, and the first upper end face portion, the second upper end face portion and the third upper end face portion are arranged in an inward direction along the upper periphery of the upper end of the upper end cover.

[0006] The plurality of upper end surface portions of the present invention include a first upper end surface portion to an nth upper end surface portion, and the first upper end surface portion to an (n-1)th upper end surface portion are arranged in decreasing height in sequence along the upper end outer circumference of the upper end cover inwardly.

[0007] The multiple upper end face portions of the upper end cover of the present invention include a first upper end face portion, a second upper end face portion, a third upper end face portion and a fourth upper end face portion, the height of the fourth upper end face portion is higher than the height of the third upper end face portion, the height of the first upper end face portion is higher than the height of the second upper end face portion, and the height of the second upper end face portion is higher than the height of the third upper end face portion, and the first upper end face portion, the second upper end face portion and the third upper end face portion are arranged in decreasing height in sequence along the upper periphery of the upper end of the upper end cover inwardly.

[0008] The upper end cover of the present invention includes a plurality of lower end face portions and a lower end step portion, the plurality of lower end face portions include the lower end face of the upper end cover and have different heights, the lower end step portion is formed on the lower end face of the upper end cover, and the lower end step portion is located between adjacent lower end face portions among the plurality of lower end face portions, the plurality of lower end face portions of the upper end cover include the first lower end face portion to the mth lower end face portion, the height of the (m-1)th lower end face portion is higher than the height of the first lower end face portion, and the height of the (m-1)th lower end face portion is higher than the height of the mth lower end face portion, and the first lower end face portion to the mth lower end face portion are arranged in an inward direction along the outer circumference of the lower end of the upper end cover, wherein m is an integer greater than 3.

[0009] The multiple lower end face portions of the present invention include a first lower end face portion, a second lower end face portion and a third lower end face portion, the height of the second lower end face portion is higher than the height of the first lower end face portion, and the height of the second lower end face portion is higher than the height of the third lower end face portion, and the first lower end face portion, the second lower end face portion and the third lower end face portion are arranged in an inward direction along the outer periphery of the lower end of the upper end cover.

[0010] The multiple lower end face portions of the present invention include a first lower end face portion and a second lower end face portion to an mth lower end face portion, and the second lower end face portion to the mth lower end face portion are arranged in decreasing height in an inward direction along the outer circumference of the lower end of the upper end cover.

[0011] The multiple lower end face portions of the upper end cover of the present invention include a first lower end face portion, a second lower end face portion, a third lower end face portion and a fourth lower end face portion, the height of the first lower end face portion is lower than the height of the second lower end face portion, the height of the second lower end face portion is higher than the height of the third lower end face portion, and the height of the third lower end face portion is higher than the height of the fourth lower end face portion, and the second lower end face portion, the third lower end face portion and the fourth lower end face portion are arranged in decreasing height in sequence along the outer circumference of the lower end of the upper end cover inwardly.

[0012] The upper end cover of the present invention further comprises an axial hole, which is arranged on the nth upper end face portion and the mth lower end face portion, mainly to allow the motor shaft to penetrate the upper end cover and extend outward.

[0013] Optionally, the height of the (m-1)th lower end face portion is higher than the height of the nth upper end face portion.

[0014] The upper end cover of the present invention also includes a mounting member A, which includes a lower end face portion a of the mounting member A and a lower end face portion b of the mounting member A. The mounting member A is arranged on other upper end face portions of the upper end cover except the (n-1)th upper end face portion and the nth upper end face portion. The lower end face portion a of the mounting member A is in contact with the upper end face portion, and the lower end face portion b of the mounting member A is opposite to an oil seal space S. The oil seal space S is an oil seal space formed by a combination of the nth upper end face portion of the upper end cover to the upper end face portion provided by the mounting member A and the upper end step portion.

[0015] The oil seal space and / or the interior of the motor of the present invention mainly carries insulating oil, and its functions include: first, to channel and cool the heat generated by the rotation of the motor; second, to guide the water entering the motor from the motor shaft gap to the inner periphery of the motor or the bottom of the motor, and will not directly enter the motor to affect the operation of the motor.

[0016] The mounting member A of the present invention further comprises a hole A, wherein the hole A allows the motor shaft to pass through the mounting member A.

[0017] Preferably, the upper end surface of the mounting member A / mounting member B is flush with the first upper end surface portion of the upper end cover to form a whole.

[0018] The upper end cover of the present invention also includes a mounting member B, which is arranged on the upper end face portions other than the (n-1)th upper end face portion and the nth upper end face portion of the upper end cover, and the mounting member B includes a first side end face portion, a second side end face portion and a mounting member B step portion, the first side end face portion and the second side end face portion have different outer diameters, the first side end face portion is larger than the outer diameter of the second side end face portion, that is, the distance from the first side end face portion to the center of the mounting member B is larger than the distance from the second side end face portion to the center of the mounting member B, the mounting member B step portion is located between the first side end face portion and the second side end face portion, the mounting member B step portion of the mounting member B is in contact with the upper end face portion, and the second side end face portion of the mounting member B is in contact with the upper end step portion.

[0019] The mounting member B of the present invention further comprises an upper end face portion of the mounting member B and a lower end face portion of the mounting member B, wherein the upper end face portion of the mounting member B comprises a protruding portion, wherein the protruding portion is formed on the upper end face portion of the mounting member B and protrudes outwardly from the mounting member B, wherein the height of the upper end face portion of the protruding portion is lower than the previous upper end face portion of the upper end face portion where the mounting member B is located, that is, the upper end face portion where the mounting member B is located is the third upper end face portion, and the height of the upper end face portion of the protruding portion is lower than the second upper end face portion.

[0020] The mounting member B of the present invention further comprises a hole B, and the hole B allows the motor shaft to pass through the mounting member B.

[0021] The upper end cover of the present invention is provided with an upper oil hole and a wire outlet hole, and the upper oil hole and the wire outlet hole are respectively connected to the second lower end surface portion.

[0022] The outlet hole on the upper end cover of the present invention is also provided with a cable gland, and the upper oil hole is also provided with an oil plug.

[0023] The motor housing of the present invention comprises the upper end cover, housing body and lower end cover as described above, wherein the upper end cover and the lower end cover are respectively arranged at the upper and lower ends of the motor housing.

[0024] The shell body and the lower end cover of the present invention are integrally formed.

[0025] The motor of the present invention comprises the motor housing, stator component, rotor component and motor shaft as described above, wherein the stator component is installed in the motor housing, the rotor component is arranged in the stator component, the motor shaft passes through the rotor component and is fixedly connected to the rotor component, and one end of the motor shaft passes through the upper end cover of the motor housing and extends to the outside of the motor housing; or the rotor component is installed in the motor housing, the stator component is arranged in the rotor component, the motor shaft passes through the stator component and the rotor component and is fixedly connected to the rotor component, and one end of the motor shaft passes through the upper end cover of the motor housing and extends to the outside of the motor housing.

[0026] The upper end cover and the lower end cover of the motor of the present invention are respectively provided with a bearing seat and a bearing, wherein the bearing is arranged in the bearing seat and the bearing is connected to the motor shaft.

[0027] The upper end cover of the motor of the present invention includes a first upper end face portion, a second upper end face portion, a third upper end face portion, a fourth upper end face portion and a fifth upper end face portion, the second upper end face portion is provided with a mounting member A, the mounting member A cooperates with the second upper end face portion and is fixed on the upper end cover, the mounting member A is provided with a hole that cooperates with the motor shaft so that the motor shaft passes through the mounting member A; the fifth upper end face portion is a circular end face, the fifth upper end face portion and the upper end step portion between the fifth upper end face portion and the fourth upper end face portion are combined into a cylindrical shape; the fifth upper end face portion is provided with an axial hole connected to the inner end face of the upper end cover.

[0028] The fifth upper end surface of the present invention is provided with a first seal, and the first seal is connected to the motor shaft.

[0029] The upper end cover of the motor of the present invention includes a first lower end face portion, a second lower end face portion and a third lower end face portion, wherein the third lower end face portion is a circular end face, and the third lower end face portion and the lower end step portion between the third lower end face portion and the second lower end face portion are combined to form a cylinder; the axial hole of the fifth upper end face portion is connected to the third lower end face portion.

[0030] The mounting member B of the present invention is arranged on the 3rd upper end face portion in the oil seal space formed by the combination of the 2nd upper end face portion, the 3rd upper end face portion, the 4th upper end face portion, the 5th upper end face portion and the upper end step portion of the upper end cover, the mounting member B step portion of the mounting member B is matched and connected with the 3rd upper end face portion, the first side end face portion of the mounting member B is matched with the upper end step portion between the 2nd upper end face portion and the 3rd upper end face portion, the second side end face portion of the mounting member B is matched with the upper end step portion between the 3rd upper end face portion and the 4th upper end face portion, and the mounting member B is provided with a hole matched with the motor shaft so that the motor shaft passes through the mounting member B.

[0031] A second sealing member is provided on the protruding portion of the mounting member B of the present invention, and the second sealing member is connected to the motor shaft.

[0032] The first upper end surface portion of the upper end cover of the present invention is provided with an oiling hole and a wire outlet hole, and the oiling hole and the wire outlet hole are respectively connected to the second lower end surface portion of the upper end cover.

[0033] The motor housing of the present invention comprises the upper end cover, the housing body and the lower end cover as described above, wherein the upper end cover and the lower end cover are respectively arranged at the upper and lower ends of the motor housing, the upper end surface of the housing body is provided with a first end wing matched with the inner end surface of the upper end cover, the first end wing is provided with a fourth sealing groove on the inner end surface close to the upper end cover, a sealing ring is provided in the fourth sealing groove, preferably, the sealing ring is a rubber ring, the sealing ring makes the housing body and the upper end cover sealed and connected, the first end wing is provided with a bolt, the first end wing is fastened to the first lower end surface of the inner end surface of the upper end cover by bolts; the lower end surface of the housing body is provided with a second end wing with the same / similar structure as the first end wing, the inner end surface of the lower end cover is provided with a lower end cover wing matched with the second end wing, the second end wing is provided with a fifth sealing groove on the inner end surface close to the lower end cover, a sealing ring is provided in the fifth sealing groove, preferably, the sealing ring is a rubber ring, the sealing ring makes the housing body and the lower end cover sealed and connected, the second end wing is provided with a bolt, the second end wing is fastened to the upper end surface of the inner end surface of the lower end cover by bolts.

[0034] The motor housing of the present invention comprises the upper end cover, housing body and lower end cover mentioned above, wherein the upper end cover and the lower end cover are respectively arranged at the upper and lower ends of the motor housing, and the housing body and the lower end cover are integrally formed.

[0035] The motor of the present invention comprises the motor housing, stator component, rotor component and motor shaft described above, wherein the stator component is installed in the motor housing, the rotor component is arranged in the stator component, the motor shaft passes through the rotor component and is fixedly connected to the rotor component, and one end of the motor shaft passes through the upper end cover of the motor housing and extends to the outside of the motor housing.

[0036] The motor of the present invention comprises the motor housing, stator component, rotor component and motor shaft described above, wherein the rotor component is installed in the motor housing, the stator component is arranged in the rotor component, the motor shaft passes through the stator component and the rotor component and is fixedly connected to the rotor component, and one end of the motor shaft passes through the upper end cover of the motor housing and extends to the outside of the motor housing.

[0037] In a motor of the present invention, one end of the motor shaft extends along the axis and sequentially passes through the shaft hole of the upper end cover, the mounting member B and the mounting member A to the outside of the motor housing. A keyway is provided on the end surface of the motor shaft extending outside the motor housing.

[0038] In the drawings of the specification, X is the lateral direction of the component, and Y is the vertical direction of the component.

[0039] The height described in the specification includes the height of the upper end face and the height of the lower end face. The height refers to the height in the Y direction in the accompanying drawings, from Y1 to Y2, that is, high to low; at the same time, the Y direction in the accompanying drawings includes Y1 as the upper end direction, that is, the upper end, and Y2 as the lower end direction, that is, the lower end.

[0040] The peripheral inward direction described in the specification refers to the X direction in the drawings, from X1 to X2, that is, from the outside to the inside, and also the direction from the periphery to the center; at the same time, the X direction in the drawings includes X1 as the peripheral direction, that is, the periphery, and X2 as the inner end direction, that is, the inner end.

[0041] The fit or fitting connection described in the specification includes clearance fit, interference fit and transition fit.

[0042] The outer end face of the upper end cover described in the specification usually refers to the end face away from the motor housing after the upper end cover and the motor housing are assembled together. At the same time, the inner end face of the upper end cover refers to the end face connected to the motor housing after the upper end cover and the motor housing are assembled together. The same applies to the outer / inner end faces of the lower end cover.

[0043] The “along the axis” described in the specification usually refers to the direction along the axis, which means along the center line of the motor shaft or along the axis of the motor shaft of the motor, and also refers to the Y direction in the accompanying drawings. All descriptions do not limit the size or area of ​​the components but only describe the direction.

[0044] The main principle of the present invention is: the main working environment of the motor is to work underwater for a long time. Insulating oil is added to the oil seal space of the upper end cover of the motor and the inside of the motor shell for oil sealing. When the motor is working, the first layer of the triple protection of the present invention begins to take effect, and water in the external environment enters the upper end cover of the motor through the gap between the motor shaft and the mounting member A. It will first be blocked by the protrusion and / or the second seal, and flow into the space between the mounting member A and the mounting member B to prevent water from further entering the motor; when the protrusion is filled with external water or the first layer of protection combination structure fails, the second layer of the triple protection begins to take effect, and water in the external environment enters the motor through the gap between the motor shaft and the mounting member B, and is blocked by the last upper end face portion of the upper end cover and / or the first seal, and is also blocked by the oil seal space filled with insulating oil. The (m-1)th lower end face portion is higher than the last upper end face portion of the upper end cover to generate negative pressure. The invention can effectively prevent water from entering. When the motor works for a long time, the insulating oil flows out of the motor, and water may still penetrate into the motor. At this time, the immiscible characteristics of oil and water and the centrifugal force brought by the rotation of the motor shaft are used to throw the water to the upper step of the upper cover and away from the motor shaft. The water accumulates downward along the upper step and remains in the oil seal space to prevent water from further entering the motor. Furthermore, when the oil seal space is filled with external water, the third layer of triple protection begins to take effect. The water in the external environment enters the motor through the gap between the motor shaft and the upper cover, and will be blocked by the motor filled with insulating oil. The immiscible characteristics of oil and water and the centrifugal force brought by the rotation of the motor shaft are used to throw the water to the inner walls of the motor casing around and away from the motor shaft and the center of the motor to prevent water from entering the stator and rotor working area inside the motor. Since water is heavier than oil, the water flows downward along the inner wall of the motor casing and into the lower cover without causing damage to the motor.

[0045] The insulating oil added to the motor of the present invention includes transformer oil, capacitor oil, cable oil and switch oil.

[0046] The beneficial effects of the present invention are as follows: through the unique structural design and the internal space of the oil-sealed motor of the present invention, the triple protection effectively ensures the sealing and waterproofness of the motor, and also ensures the high efficiency of the motor working underwater for a long time. At the same time, the maintenance cost is low. Each time, only the upper end cover needs to be opened for maintenance, and no other maintenance is required for other components such as the motor stator and rotor, thereby reducing maintenance time and increasing the running time of the motor. In addition, the oil seal can be used to efficiently dissipate the heat inside the motor. The motor rotor rotates inside the motor to drive the movement of the oil inside the motor, and the heat generated by the rotation of the stator and rotor is continuously transferred to the motor casing through the oil, and then the motor casing transfers the heat to the external environment, effectively dissipating the heat and cooling the motor, thereby ensuring that the motor works efficiently for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic cross-sectional structure diagram of a first embodiment of the upper end cover; Figure 2is a schematic cross-sectional structure diagram of a second embodiment of the upper end cover; Figure 3 is a schematic cross-sectional structure diagram of a third embodiment of the upper end cover; Figure 4 is a schematic cross-sectional structure diagram of a fourth embodiment of the upper end cover; Figure 5 A top view of a fourth embodiment of the upper end cover; Figure 6 A bottom view of a fourth embodiment of the upper end cover; Figure 7 It is a schematic cross-sectional structure diagram of a first embodiment of a motor; Figure 8 A top view of a first embodiment of a motor; Fig. 9 is a schematic cross-sectional structure diagram of a second embodiment of a motor; Fig.10 It is a schematic cross-sectional structure diagram of a third embodiment of a motor; Fig.11 It is a schematic diagram of the cross-sectional structure of the upper end cover of the first embodiment of the motor; Fig.12 It is a schematic diagram of the cross-sectional structure of the mounting part B of the motor; Fig.13 It is a top view of the mounting part B of the motor; Fig.14 It is a schematic diagram of the cross-sectional structure of the mounting part A of the motor; Fig.15 It is a top view of the mounting part A of the motor.

[0048] In the figure: 2-stator component, 3-rotor component, 4-motor shaft, 11-upper end cover, 12-shell body, 13-lower end cover, 113-mounting member A, 1122-shaft hole, 115-first sealing member, 1111-mounting member B, 1113-mounting member B upper end face, 1114-protrusion, 1115-mounting member B lower end face, 1116-hole B, 1131-hole A, 1118-second sealing member, 116-upper end cover wing, 118-upper oil hole, 119-wire outlet hole, 121-first end wing, 122-second end wing, 130-lower end cover wing, 41-keyway, 19a-first upper end face, 19b-second upper end face, 19c-third upper end face, 19d-fourth upper end face, 19e-fifth upper end face, 18a -1st lower end face portion, 18b -2nd lower end face portion, 18c -3rd lower end face portion, 18d -4th lower end face portion, 191a -upper end step portion, 181a -lower end step portion, 1112a -first side end face portion, 1112b -mounting part B step portion, 1112c -second side end face portion, 1111a-mounting part A lower end face portion a, 1111b-mounting part A lower end face portion b, 1141 -first bearing groove, 1311 -second bearing groove, 11111 -third sealing groove, 1211 -fourth sealing groove, 1212 -fifth sealing groove, S -oil seal space, R -sealing space, 1161 -first upper end wing, 1162 -second upper end wing. DETAILED DESCRIPTION

[0049] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0050] Example 1, see Figure 1 The present invention discloses an upper end cover, the upper end cover comprises a first upper end face portion 19a, a second upper end face portion 19b, a third upper end face portion 19c and an upper end step portion 191a, the height of the third upper end face portion 19c is higher than the height of the second upper end face portion 19b, and the height of the third upper end face portion 19c is lower than the height of the first upper end face portion 19a, and the first upper end face portion 19a, the second upper end face portion 19b and the third upper end face portion 19c are arranged inwardly along the upper end outer circumference of the upper end cover; The upper end cover further includes a first lower end face portion 18a, a second lower end face portion 18b, a third lower end face portion 18c and a lower end step portion 181a, wherein the height of the second lower end face portion 18b is higher than the height of the first lower end face portion 18a, and the height of the second lower end face portion 18b is higher than the height of the third lower end face portion 18c, and the height of the second lower end face portion 18b is higher than the height of the third upper end face portion 19c, and the first lower end face portion 18a, the second lower end face portion 18b and the third lower end face portion 18c are arranged inwardly along the outer circumference of the lower end of the upper end cover; A mounting member A113 is also provided on the first upper end surface portion 19a, and the mounting member A113 includes a mounting member A lower end surface portion a1111a and a mounting member A lower end surface portion b1111b, the mounting member A lower end surface portion a1111a is in contact with the first upper end surface portion 19a, and the mounting member A lower end surface portion b1111b is opposite to the oil seal space S, and the oil seal space S is an oil seal space formed by the combination of the second upper end surface portion 19b, the third upper end surface portion 19c and the upper end step portion 191a of the upper end cover, and the rest is the same as any other embodiment of the present invention or a combination of two or more embodiments.

[0051] Example 2, see Figure 2 The present invention discloses an upper end cover, the upper end cover comprises a first upper end face portion 19a, a second upper end face portion 19b, a third upper end face portion 19c and an upper end step portion 191a, the height of the third upper end face portion 19c is higher than the height of the second upper end face portion 19b, and the height of the third upper end face portion 19c is lower than the height of the first upper end face portion 19a, and the first upper end face portion 19a, the second upper end face portion 19b and the third upper end face portion 19c are arranged inwardly along the upper end outer circumference of the upper end cover; The upper end cover further includes a first lower end face portion 18a, a second lower end face portion 18b, a third lower end face portion 18c and a lower end step portion 181a, wherein the height of the second lower end face portion 18b is higher than the height of the first lower end face portion 18a, and the height of the second lower end face portion 18b is higher than the height of the third lower end face portion 18c, and the height of the second lower end face portion 18b is higher than the height of the third upper end face portion 19c, and the first lower end face portion 18a, the second lower end face portion 18b and the third lower end face portion 18c are arranged inwardly along the outer circumference of the lower end of the upper end cover; A mounting member B1111 is also provided on the first upper end surface portion 19a, and the mounting member B1111 includes a first side end surface portion 1112a, a second side end surface portion 1112c, a mounting member B step portion 1112b and a mounting member B lower end surface portion 1115, the mounting member B step portion 1112b is in contact with the first upper end surface portion 19a, the second side end surface portion 1112c is cooperatively connected with the upper end step portion 191a, and the mounting member B lower end surface portion 1115 is opposite to the oil seal space S, and the oil seal space S is an oil seal space formed by the combination of the second upper end surface portion 19b, the third upper end surface portion 19c and the upper end step portion 191a of the upper end cover; the rest is the same as any other embodiment or a combination of two or more embodiments of the present invention.

[0052] Example 3, see Figure 3The present invention discloses an upper end cover, the upper end cover comprises a first upper end face portion 19a, a second upper end face portion 19b, a third upper end face portion 19c, a fourth upper end face portion 19d and an upper end step portion 191a, the height of the fourth upper end face portion 19d is higher than the height of the third upper end face portion 19c, and the height of the fourth upper end face portion 19d is lower than the height of the second upper end face portion 19b, the first upper end face portion 19a is higher than the height of the second upper end face portion 19b, and the first upper end face portion 19a, the second upper end face portion 19b, the third upper end face portion 19c and the fourth upper end face portion 19d are arranged inwardly along the upper end outer circumference of the upper end cover; The upper end cover further includes a first lower end face portion 18a, a second lower end face portion 18b, a third lower end face portion 18c, a fourth lower end face portion 18d and a lower end step portion 181a, wherein the height of the second lower end face portion 18b is higher than the height of the first lower end face portion 18a, and the height of the second lower end face portion 18b is higher than the height of the third lower end face portion 18c, the height of the third lower end face portion 18c is higher than the height of the fourth lower end face portion 18d, and the height of the third lower end face portion 18c is higher than the height of the fourth upper end face portion 19d, and the first lower end face portion 18a, the second lower end face portion 18b, the third lower end face portion 18c and the fourth lower end face portion 18d are arranged inwardly along the outer circumference of the lower end of the upper end cover; A mounting member B1111 is also provided on the second upper end surface portion 19b, and the mounting member B1111 includes a first side end surface portion 1112a, a second side end surface portion 1112c, a mounting member B step portion 1112b, a mounting member B lower end surface portion 1115 and a mounting member B upper end surface portion 1113, the mounting member B step portion 1112b is in contact with the second upper end surface portion 19b, the second side end surface portion 1112c is matched and connected with the upper end step portion 191a, and the mounting member B lower end surface portion 1115 is opposite to the oil seal space S, and the oil seal space S is an oil seal space formed by the third upper end surface portion 19c, the fourth upper end surface portion 19d and the upper end step portion 191a of the upper end cover; A mounting member A113 is also provided on the first upper end surface portion 19a, and the mounting member A113 includes a mounting member A lower end surface portion a1111a and a mounting member A lower end surface portion b1111b, the mounting member A lower end surface portion a1111a is in contact with the first upper end surface portion 19a, and the mounting member A lower end surface portion b1111b is opposite to a sealed space R, and the sealed space R is a sealed space formed by a combination of the second upper end surface portion 19b of the upper end cover, the upper end step portion 191a and the mounting member B upper end surface portion 1113 of the mounting member B, and the rest is the same as any other embodiment of the present invention or a combination of two or more embodiments.

[0053] Example 4, see Figure 4The present invention discloses an upper end cover, the upper end cover comprises a first upper end face portion 19a, a second upper end face portion 19b, a third upper end face portion 19c, a fourth upper end face portion 19d, a fifth upper end face portion 19e and an upper end step portion 191a, the height of the fifth upper end face portion 19e is higher than the height of the fourth upper end face portion 19d, and the height of the fifth upper end face portion 19e is lower than the height of the third upper end face portion 19c, the second upper end face portion 19b is higher than the height of the third upper end face portion 19c, the first upper end face portion 19a is higher than the height of the second upper end face portion 19b, and the first upper end face portion 19a, the second upper end face portion 19b, the third upper end face portion 19c, the fourth upper end face portion 19d and the fifth upper end face portion 19e are arranged inwardly along the upper end outer circumference of the upper end cover; The upper end cover further includes a first lower end face portion 18a, a second lower end face portion 18b, and a third lower end face portion 18c, wherein the height of the second lower end face portion 18b is higher than the height of the first lower end face portion 18a, and the height of the second lower end face portion 18b is higher than the height of the third lower end face portion 18c, and the height of the second lower end face portion 18b is higher than the height of the fifth upper end face portion 19e, and the first lower end face portion 18a, the second lower end face portion 18b, and the third lower end face portion 18c are arranged inwardly along the outer circumference of the lower end of the upper end cover; A mounting member B1111 is also provided on the third upper end surface portion 19c, and the mounting member B1111 includes a first side end surface portion 1112a, a second side end surface portion 1112c, a mounting member B step portion 1112b, a mounting member B lower end surface portion 1115 and a mounting member B upper end surface portion 1113, the mounting member B step portion 1112b is in contact with the third upper end surface portion 19c, the second side end surface portion 1112c is in cooperation with the upper end step portion 191a, and the mounting member B lower end surface portion 1115 is opposite to the oil seal space S, which is an oil seal space formed by the fourth upper end surface portion 19d, the fifth upper end surface portion 19e and the upper end step portion 191a of the upper end cover; A mounting member A113 is also provided on the second upper end surface portion 19b, and the mounting member A113 includes a mounting member A lower end surface portion a1111a and a mounting member A lower end surface portion b1111b, the mounting member A lower end surface portion a1111a is in contact with the second upper end surface portion 19b, and the mounting member A lower end surface portion b1111b is opposite to a sealed space R, and the sealed space R is a sealed space formed by a combination of the third upper end surface portion 19c of the upper end cover, the upper end step portion 191a and the mounting member B upper end surface portion 1113 of the mounting member B, and the rest is the same as any other embodiment or a combination of two or more embodiments of the present invention.

[0054] Example 5, see Figure 5The present invention discloses an upper end cover, which includes a first upper end face portion 19a, a second upper end face portion 19b, a third upper end face portion 19c, a fourth upper end face portion 19d and a fifth upper end face portion 19e, wherein the inner diameter of the first upper end face portion 19a is equal to the outer diameter of the second upper end face portion 19b, the inner diameter of the second upper end face portion 19b is equal to the outer diameter of the third upper end face portion 19c, the inner diameter of the third upper end face portion 19c is equal to the outer diameter of the fourth upper end face portion 19d, the inner diameter of the fourth upper end face portion 19d is equal to the outer diameter of the fifth upper end face portion 19e, and the first upper end face portion 19a, the second upper end face portion 19b, the third upper end face portion 19c, the fourth upper end face portion 19d and the fifth upper end face portion 19e are arranged inwardly along the upper periphery of the upper end of the upper end cover, and the rest is the same as any other embodiment or a combination of two or more embodiments of the present invention.

[0055] Example 6, see Figure 6 The present invention discloses an upper end cover, which includes a first lower end face portion 18a, a second lower end face portion 18b and a third lower end face portion 18c, wherein the inner diameter of the first lower end face portion 18a is equal to the outer diameter of the second lower end face portion 18b, the inner diameter of the second lower end face portion 18b is equal to the outer diameter of the third lower end face portion 18c, and the first lower end face portion 18a, the second lower end face portion 18b and the third lower end face portion 18c are arranged inwardly along the outer circumference of the lower end of the upper end cover, and the rest is the same as any other embodiment or a combination of two or more embodiments of the present invention.

[0056] Example 7, see Figure 7 The present invention discloses a motor, comprising an upper end cover 11, a shell body 12, a stator component 2, a rotor component 3 and a motor shaft 4, wherein the upper end cover 11 is provided with a mounting member A113 and a mounting member B1111, the stator component 2 is installed in the shell body 12, the rotor component 3 is arranged in the stator component 2, the motor shaft 4 passes through the rotor component 3 and is fixedly connected with the rotor component 3, one end of the motor shaft 4 passes through the upper end cover 11, the mounting member B1111 and the mounting member A113 in sequence and extends to the outside of the motor, the upper end cover 11 is further provided with an upper oil hole 118 and a wire outlet hole 119, one end of the upper oil hole 118 and the wire outlet hole 119 are respectively connected to the first upper end face portion 19a of the upper end cover 11, and the other ends of the upper oil hole 118 and the wire outlet hole 119 are respectively connected to the second lower end face portion 18b of the upper end cover 11, and the rest is the same as any other embodiment of the present invention or a combination of more than two embodiments.

[0057] Example 8, see Figure 8The present invention discloses a motor, which includes an upper end cover 11 and a mounting member A113, wherein the mounting member A113 is cooperatively connected with the upper end cover 11, and a hole A is provided on the mounting member A113, and the hole A can pass the motor shaft 4, and the rest is the same as any other embodiment of the present invention or a combination of more than two embodiments.

[0058] Example 9, see Fig. 9 The present invention discloses a motor, which includes an upper end cover 11, a shell body 12, and a lower end cover 13. The upper end cover 11 is provided with a mounting member A113 and a mounting member B1111. A first sealing member 115 is provided on the 5th upper end surface portion 19e of the upper end cover 11. The upper end of the first sealing member 115 is connected to the lower end surface portion 1115 of the mounting member B1111. A protrusion 1114 is provided on the upper end surface portion 1113 of the mounting member B of the mounting member B1111. A second sealing member 1118 is provided on the protrusion 1114. The upper end of the second sealing member 1118 is connected to the lower end surface portion b1111b of the mounting member A113. The rest is the same as any other embodiment of the present invention or a combination of more than two embodiments.

[0059] Example 10, see Fig.10 The present invention discloses a motor, the motor comprises an upper end cover 11, a shell body 12, and a lower end cover 13, the upper end cover 11 and the lower end cover 13 are respectively arranged at the upper and lower ends of the shell body 12, the upper end cover 11 is provided with a mounting member A113 and a mounting member B1111, the second side end face portion 1112c of the mounting member B1111 is provided with a third sealing groove 11111, and a sealing ring is arranged in the third sealing groove 11111, preferably, the sealing ring is a rubber ring, so that the mounting member B1111 is sealed and connected with the upper end cover 11, so as to prevent liquid from flowing into the interior of the upper end cover from the side end face portion of the mounting member B1111; An upper end cover wing 116 is provided on the lower end face of the upper end cover 11, and the upper end cover wing 116 includes a first upper end wing 1161 and a second upper end wing 1162, the first upper end wing 1161 extends outwardly along the inner end face, and the second upper end wing 1162 extends outwardly along the inner end face, and the first upper end cover wing 1161 and the second upper end cover wing 1162 extend perpendicularly to each other, and a first end wing 121 is provided on the upper end face of the shell body 12 to cooperate with the upper end cover wing 116 of the upper end cover 11, and a fourth sealing groove 1211 is provided on the end face of the first end wing 121 close to the upper end cover wing 116, and a sealing ring is provided in the fourth sealing groove 1211, and preferably, the sealing ring is a rubber ring , the sealing ring makes the shell body 12 and the upper end cover 11 sealed and connected, the first end wing 121 can also be provided with bolts, and the first end wing 121 is fastened and connected with the upper end cover wing 116 by bolts; the lower end surface of the shell body 12 is provided with a second end wing 122 with the same / similar structure as the first end wing 121, the inner end surface of the lower end cover 13 is provided with a lower end cover wing 130 matched with the second end wing 122, and the second end wing 122 is provided with a fifth sealing groove 1212 on the inner end surface of the shell body 12 close to the lower end cover 13, and the fifth sealing groove 1212 is provided with a sealing ring, preferably, the sealing ring is a rubber ring, and the sealing ring makes the shell body 12 and the lower end cover 13 sealed and connected; A first bearing groove 1141 is provided on the third lower end surface portion 18c of the upper end cover 11, a bearing is provided in the first bearing groove 1141, the upper end cover 11 is sleeved on the motor shaft through the bearing, a second bearing groove 1311 is provided on the inner end surface of the lower end cover 13, a bearing is provided in the second bearing groove 1311, the lower end cover 13 is connected to the motor shaft through the bearing, and the rest is the same as any other embodiment of the present invention or a combination of more than two embodiments.

[0060] Example 11, see Fig.11 The present invention discloses an upper end cover of a motor, wherein the upper end cover is provided with an axial hole 1122, the mounting member B is provided with a hole B1116, the mounting member A is provided with a hole A1131, the diameter of the axial hole 1122 is equal to the diameter of the hole B1116 is equal to the diameter of the hole A1131, and the rest is the same as any other embodiment of the present invention or a combination of more than two embodiments.

[0061] Example 12, see Fig.12The present invention discloses a mounting member B of a motor, wherein the mounting member B comprises a first side end face portion 1112a, a second side end face portion 1112c, a mounting member B step portion 1112b, a mounting member B upper end face portion 1113, a protruding portion 1114, a mounting member B lower end face portion 1115 and a hole B1116, wherein the protruding portion 1114 is arranged on the mounting member B upper end face portion 1113, one end of the hole B1116 is connected to the protruding portion 1114, and the other end of the hole B1116 is connected to the mounting member B lower end face portion 1115, and the rest is the same as any other embodiment of the present invention or a combination of two or more embodiments.

[0062] Example 13, see Fig.13 The present invention discloses a mounting member B of a motor, wherein the mounting member B comprises an upper end surface portion 1113 of the mounting member B, a protrusion 1114 and a hole B1116, wherein the upper end surface portion 1113, the protrusion 1114 and the hole B1116 of the mounting member B are circular and share a center line, and the rest is the same as any other embodiment or a combination of more than two embodiments of the present invention.

[0063] Example 14, see Fig.14 and Fig.15 The present invention discloses a motor mounting member A, on which a hole A1131 is provided. The mounting member A is a hollow circular body, and the rest is the same as any other embodiment or a combination of more than two embodiments of the present invention.

Claims

1. An upper end cover, the upper end cover is fixed on the casing, characterized in that: The upper end cover includes a plurality of upper end face portions and an upper end step portion. The plurality of upper end surface portions include the upper end surface of the upper end cover and have different heights. The upper end step is formed on the upper end surface of the upper end cover. The upper end step portion is located between adjacent upper end surface portions among the plurality of upper end surface portions, The multiple upper end face portions of the upper end cover include the 1st upper end face portion to the nth upper end face portion, the height of the nth upper end face portion is higher than the height of the (n-1)th upper end face portion, and the height of the nth upper end face portion is lower than the height of the (n-2)th upper end face portion, and the 1st upper end face portion to the nth upper end face portion are arranged in an inward direction along the upper periphery of the upper end of the upper end cover, wherein n is an integer greater than 3.

2. The upper end cover according to claim 1 is characterized in that: The first to (n-1)th upper end surface portions are arranged in decreasing height in an inward direction along the upper end outer circumference of the upper end cover.

3. The upper end cover according to claim 1 is characterized in that: The upper end cover includes a plurality of lower end face portions and a lower end step portion, The plurality of lower end surface portions include the lower end surface of the upper end cover and have different heights. The lower end step portion is formed on the lower end surface of the upper end cover, The lower end step portion is located between adjacent lower end surface portions among the plurality of lower end surface portions. The multiple lower end face portions of the upper end cover include the 1st lower end face portion to the mth lower end face portion, the height of the (m-1)th lower end face portion is higher than the height of the 1st lower end face portion, and the height of the (m-1)th lower end face portion is higher than the height of the mth lower end face portion, and the 1st lower end face portion to the mth lower end face portion are arranged in an inward direction along the outer periphery of the lower end of the upper end cover, wherein m is an integer greater than 3.

4. The upper end cover according to claim 3 is characterized in that: The second to mth lower end face portions are arranged in decreasing height in an inward direction along the outer circumference of the lower end of the upper end cover.

5. The upper end cover according to any one of claims 1 to 4, characterized in that: The upper end cover also includes a mounting member A, which includes a lower end face portion a of the mounting member A and a lower end face portion b of the mounting member A. The mounting member A is arranged on other upper end face portions of the upper end cover except the (n-1)th upper end face portion and the nth upper end face portion. The lower end face portion a of the mounting member A is in contact with the upper end face portion, and the lower end face portion b of the mounting member A is opposite to the oil seal space S. The oil seal space S is an oil seal space formed by a combination of the nth upper end face portion of the upper end cover to the upper end face portion arranged by the mounting member A and the upper end step portion.

6. The upper end cover according to any one of claims 1 to 4, characterized in that: The upper end cover also includes a mounting member B, which is arranged on the upper end face portions other than the (n-1)th upper end face portion and the nth upper end face portion of the upper end cover, the mounting member B includes a first side end face portion, a second side end face portion and a mounting member B step portion, the first side end face portion and the second side end face portion have different outer diameters, the first side end face portion is larger than the outer diameter of the second side end face portion, the mounting member B step portion is located between the first side end face portion and the second side end face portion, the mounting member B step portion of the mounting member B is in contact with the upper end face portion, and the second side end face portion of the mounting member B is in contact with the upper end step portion.

7. The upper end cover according to claim 6 is characterized in that: The mounting member B also includes an upper end face portion of the mounting member B and a lower end face portion of the mounting member B. The upper end face portion of the mounting member B includes a protruding portion, which is formed on the upper end face portion of the mounting member B and protrudes outward from the mounting member B. The height of the upper end face of the protruding portion is lower than the upper end face portion of the upper end face portion where the mounting member B is located.

8. A motor housing, characterized in that: The motor housing comprises the upper end cover, housing body and lower end cover as described in any one of claims 1 to 7, and the upper end cover and the lower end cover are respectively arranged at the upper and lower ends of the motor housing.

9. The motor housing according to claim 8, characterized in that: The shell body and the lower end cover are integrally formed.

10. A motor, characterized in that: The motor comprises a motor housing, a stator component, a rotor component and a motor shaft as described in any one of claims 8 to 9, wherein the stator component is installed in the motor housing, the rotor component is arranged in the stator component, the motor shaft passes through the rotor component and is fixedly connected to the rotor component, and one end of the motor shaft passes through the upper end cover of the motor housing and extends to the outside of the motor housing; or the rotor component is installed in the motor housing, the stator component is arranged in the rotor component, the motor shaft passes through the stator component and the rotor component and is fixedly connected to the rotor component, and one end of the motor shaft passes through the upper end cover of the motor housing and extends to the outside of the motor housing.

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