An electric drive axle motor that can be arranged mirror-symmetrically

Abstract

This utility model relates to the field of electric drive bridge motor technology, specifically to an electric drive bridge motor with a mirror-symmetrical arrangement. It includes an electric drive bridge motor body, comprising: a rear end cover; a junction box disposed on the rear end cover, the rear end cover having two low-voltage output positions; and multiple suspension mounting posts disposed on the rear end cover. Each suspension mounting post is divided into two groups, and the two groups of suspension mounting posts are mirror-symmetrically arranged with a predetermined axis as the line of symmetry. The two low-voltage output positions are also mirror-symmetrically arranged with a predetermined axis as the line of symmetry. The electric drive bridge motor in this application can be assembled as a left or right motor as required. When the front end cover and the base rotate relative to each other, the mounting bolt holes of the front end cover and the reducer do not interfere with each other, resulting in a wider range of applications and reducing the cost of the dual-motor electric drive bridge structure. Simultaneously, since two sets of molds corresponding to the rear end cover are not required, processing costs are reduced.

Description

Technical Field

[0001] This utility model relates to the field of electric drive bridge motor technology, and specifically to an electric drive bridge motor that can be arranged in a mirror-symmetric manner. Background Technology

[0002] An electric drive bridge structure typically includes one or two motors. When there are two motors, one is located on the left side of the electric drive bridge structure and is designated as the left motor, while the other is located on the right side of the electric drive bridge structure and is designated as the right motor.

[0003] For electric drive bridge structures that include only a single motor, the motor is configured as either a left motor or a right motor, depending on requirements. See also Figure 1 In existing technology, the left and right motors are not mirror images of each other, reducing the versatility of components. Taking the left motor as an example, if the left motor needs to be switched to the right motor as required, the position and layout of the rear cover structure itself will change. Figure 1 The right motor that switches between the left and right motors Figure 1 The internal structural layout of the right and middle motors differs, namely... Figure 1 The right motor that switches between the left and right motors Figure 1 The non-mirror symmetrical structure between the middle and left motors affects the position and layout of other structures within the electric drive bridge structure.

[0004] See Figure 1 Due to the configuration of some features of the rear end cover of the motor in the existing technology, such as the low voltage output position 100 being a single unit, or the suspension mounting column 200 being multiple units but arranged irregularly, the left and right motors cannot be switched between each other when a mirror symmetrical structure is required between the left and right motors. Consequently, two sets of molds corresponding to the rear end cover of the left motor and the rear end cover of the right motor need to be set up, which increases the mold cost.

[0005] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0006] The purpose of this invention is to provide an electric drive bridge motor that can be arranged in a mirror-symmetric manner.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A mirror-symmetrically arranged electric drive bridge motor includes an electric drive bridge motor body, the electric drive bridge motor body comprising:

[0009] Rear end cover;

[0010] A junction box is located on the rear end cover, and the junction box has two low-voltage outgoing cable positions;

[0011] Multiple suspension mounting posts are provided on the rear end cover.

[0012] The suspension mounting columns are divided into two groups, and the two groups of suspension mounting columns are mirror-symmetrically arranged with a predetermined axis as the line of symmetry. The electric drive bridge motor selectively uses multiple of the suspension mounting columns on one side or the other side of the mirror-symmetrical arrangement.

[0013] The two low-voltage output positions are mirror-symmetrically arranged with the predetermined axis as the line of symmetry. The electric drive bridge motor selectively uses one of the low-voltage output positions on the other side of the mirror-symmetrical arrangement.

[0014] In some electric drive bridge structures, the motors are arranged on the left or right side of the electric drive bridge structure as required, corresponding to left motor and right motor, and the left motor and right motor are set in a mirror symmetrical arrangement.

[0015] In the above scheme, for the electric drive bridge motor of this application, on the one hand, the number of mounting posts is even, each mounting post is divided into two groups, and the two groups of mounting posts are mirror-symmetrically arranged with a predetermined axis as the line of symmetry; on the other hand, an additional low-voltage output position is added, and the two low-voltage output positions are also mirror-symmetrically arranged with the aforementioned predetermined axis as the line of symmetry. Based on the above configuration, when the electric drive bridge motor of this application switches between the left motor and the right motor, the mounting posts and the low-voltage output positions do not interfere with each other.

[0016] In summary, the electric drive bridge motor in this application can be assembled as either a left or right motor as needed, thus broadening its applicability and reducing the cost of the dual-motor electric drive bridge structure. Furthermore, since it eliminates the need for two sets of molds corresponding to the rear end cover, processing costs are reduced.

[0017] A further technical solution is that the predetermined axis is a symmetrical axis perpendicular to and intersecting with the rotor central axis of the electric drive bridge motor body, and the orthogonal projection of this symmetrical axis on the axial direction of the electric drive bridge motor body lies on the orthogonal projection of the junction box. Preferably, the predetermined axis is the central symmetrical axis of the junction box, which allows the electric drive bridge motor in this application to further meet the requirements of a mirror structure. When the predetermined axis is not the central symmetrical axis of the junction box, the left motor and the right motor are not completely mirror symmetrical, which will affect the layout of the electric drive bridge structure. Both the left motor and the right motor refer to the electric drive bridge motor in this application.

[0018] In a further technical solution, the junction box has a protrusion that protrudes from the rear end cover in the radial direction of the electric drive bridge motor body, and the two low-voltage outgoing lines are located on the protrusion.

[0019] To make it easier to understand, let's put it another way: On the axial direction of the electric drive bridge motor body, the projection of the protrusion is outside the projection of the rear end cover.

[0020] The suspension mounting post is located on the rear end cover, and the protrusion is set to protrude relative to the rear end cover, which further avoids interference between the suspension mounting post and the low voltage outlet position, and at the same time, it also facilitates the position layout of the suspension mounting post.

[0021] Based on the configuration of this embodiment, the location layout of the suspended mounting post and the low-voltage outgoing line does not affect each other.

[0022] In a further technical solution, the main body of the electric drive bridge motor also includes an integrally formed base and reinforcing ribs, and the rear end cover is fixedly connected to the base.

[0023] The base is a standard configuration and will not be described in detail here.

[0024] The reinforcing ribs enhance the structural strength of the motor body by improving the strength of the base structure. They also facilitate the assembly of the base with the rear end cover and the front end cover described below.

[0025] A further technical solution involves providing multiple reinforcing ribs, each uniformly distributed circumferentially around the axis of the base. This arrangement improves the uniformity of stress distribution on the base structure and further facilitates the assembly of the base with the rear end cover and the front end cover described below.

[0026] In a further technical solution, the electric drive bridge motor body also includes a front end cover connected to the base, and the front end cover and the rear end cover are respectively disposed at both ends of the base in the axial direction of the base;

[0027] The front end cover is provided with a plurality of first bolt through holes corresponding to each of the reinforcing ribs, and the first bolt through holes are equidistantly distributed in the circumferential direction of the front end cover.

[0028] The rear end cover is provided with a plurality of second bolt through holes corresponding to each of the reinforcing ribs and each of the first bolt through holes, and the second bolt through holes are equidistantly distributed in the circumferential direction of the rear end cover.

[0029] The number of the reinforcing ribs, the first bolt through-hole, and the second bolt through-hole are the same.

[0030] The assembly of the front cover and the base is explained below. The assembly of the rear cover and the base is explained in the same way: The front cover and the base are fixed together by the first bolt through hole and the reinforcing rib. The threaded connection method will not be explained here. When assembling the two, they can be rotated by a predetermined angle. For example, if there are 7 first bolt through holes, they can be rotated 360° / 7 without affecting the assembly.

[0031] To highlight the advantages of this embodiment, the following additional explanation is provided: In some cases, the front cover and reducer can be installed via a mounting flange, which will not be elaborated here. Correspondingly, the front cover and reducer have third bolt through holes, and these third bolt through holes are randomly distributed, unlike the first bolt through holes which are evenly distributed. In this case, when the front cover is switched between the left motor front cover and the right motor front cover, the third bolt through holes on the front cover used for mounting with the reducer are not easily misaligned with the first bolt through holes, making it difficult to adapt to the previous reducer and requiring the replacement of the front cover. However, when the front cover can be rotated to a predetermined angle for mounting on the base, the third bolt through holes on the front cover continuously adjust their positions during rotation to correspond with the third bolt through holes on the previous reducer, avoiding the need to replace the front cover and further reducing structural costs. When the front cover needs to be installed on different electric drive bridge structures, it also increases the possibility of adapting to different reducers and avoids the need to use different front cover molds to produce different front cover designs.

[0032] In summary, the front and rear covers of the electric drive bridge motor in this application have the characteristic of high versatility, which reduces the overall cost of the electric drive bridge structure by reducing mold costs.

[0033] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0034] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0035] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0036] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0037] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0038] The working principle and advantages of this utility model are as follows:

[0039] The electric drive bridge motor in this application has two features: firstly, an even number of mounting posts, with each mounting post divided into two groups, and the two groups of mounting posts arranged mirror-symmetrically about a predetermined axis; secondly, an additional low-voltage output position is provided, and the two low-voltage output positions are also mirror-symmetrically arranged about the aforementioned predetermined axis. Based on these features, when the electric drive bridge motor switches between the left and right motors, the mounting posts and the low-voltage output position do not interfere with each other.

[0040] In summary, the electric drive bridge motor in this application can be assembled as a left motor or a right motor as required, achieving a mirror-symmetrical arrangement, which has a wide range of applications. This reduces the cost of the dual-motor electric drive bridge structure. At the same time, since it is not necessary to set up two sets of molds corresponding to the rear end cover, the mold cost is reduced. Attached Figure Description

[0041] Figure 1 This is one of the schematic diagrams of the mirror arrangement of the left and right motors in the prior art (from the rear cover perspective).

[0042] Figure 2 This is the second schematic diagram of the mirror arrangement of the left and right motors in the prior art (from the front cover perspective).

[0043] Figure 3 This is one of the mirror-image arrangements of the left and right motors in an embodiment of this utility model (view from the rear cover).

[0044] Figure 4 This is the second schematic diagram of the mirror arrangement of the left and right motors in this embodiment of the present invention (view from the front cover).

[0045] Figure 5 This is a schematic diagram of the structure of the electric drive bridge motor in an embodiment of this utility model.

[0046] In the above attached diagrams: 1. Electric drive bridge motor body; 11. Rear end cover; 111. Second bolt through hole; 12. Junction box; 121. Protrusion; 13. Low voltage output position; 14. Suspension mounting column; 15. Base; 16. Reinforcing rib; 17. Front end cover; 171. First bolt through hole; 18. Third bolt through hole. Detailed Implementation

[0047] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0048] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0049] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0050] See Figures 3-5 A mirror-symmetrically arranged electric drive bridge motor includes an electric drive bridge motor body 1, wherein the electric drive bridge motor body 1 includes:

[0051] Rear cover 11;

[0052] Junction box 12 is located on the rear cover 11, and the junction box 12 has two low-voltage outgoing positions 13.

[0053] Suspension mounting posts 14 are provided on the rear end cover 11 and are provided in multiple ways;

[0054] The aforementioned suspension mounting posts 14 are divided into two groups, and the two groups of suspension mounting posts 14 are aligned with a predetermined axis ( Figure 3 Line A in the middle is set as a mirror image of the symmetrical line;

[0055] The two low-voltage outlet positions 13 are mirror-symmetrically arranged with the predetermined axis as the line of symmetry.

[0056] In some electric drive bridge structures, the motors are arranged on the left or right side of the electric drive bridge structure as required, corresponding to left motor and right motor, and the left motor and right motor are set in a mirror symmetrical arrangement.

[0057] In this application, the electric drive bridge motor has two features: firstly, an even number of mounting posts 14, with each mounting post 14 divided into two groups, and the two groups of mounting posts 14 arranged mirror-symmetrically about a predetermined axis; secondly, an additional low-voltage output position 13 is provided, and the two low-voltage output positions 13 are also mirror-symmetrically arranged about the aforementioned predetermined axis. Based on these features, when the electric drive bridge motor switches between the left and right motors, the mounting posts 14 and the low-voltage output positions 13 do not interfere with each other.

[0058] In summary, the electric drive bridge motor in this application can be assembled as either a left or right motor as needed, thus broadening its applicability and reducing the cost of the dual-motor electric drive bridge structure. Furthermore, since it eliminates the need for two sets of molds corresponding to the rear end cover 11, processing costs are reduced.

[0059] It should be noted that the use of the suspended mounting post 14 and the low-voltage outlet position 13 can be selected according to the actual needs, such as selecting only one low-voltage outlet position 13 and several of the suspended mounting posts 14.

[0060] To facilitate understanding, the following additional explanation is provided:

[0061] First, through rotation Figure 3 The left motor in the middle can turn it into Figure 3 The right motor in the middle enables switching, and vice versa;

[0062] Second, the single-motor electric drive bridge structure only requires a single electric drive bridge motor as described in this application to meet the switching requirements.

[0063] Third, only a single mold for the rear end cover 11 is needed to produce the rear end cover 11 suitable for both the left and right motors.

[0064] In some embodiments, the junction box 12 and the rear cover 11 are integrally formed.

[0065] See Figures 3-4 In this embodiment, the predetermined axis is a symmetrical axis that is perpendicular to and intersects the rotor center axis of the electric drive bridge motor body 1. The orthographic projection of this symmetrical axis onto the axial direction of the electric drive bridge motor body 1 lies on the orthographic projection of the junction box 12. Preferably, the predetermined axis is the central symmetrical axis of the junction box 12. This arrangement allows the electric drive bridge motor in this application to further meet the requirements of a mirror structure. When the predetermined axis is not the central symmetrical axis of the junction box 12, the left motor and the right motor are not completely mirror-symmetrical, which will affect the layout of the electric drive bridge structure. The left motor and the right motor both refer to the electric drive bridge motor in this application.

[0066] See Figures 3-4 In this embodiment, the junction box 12 has a protrusion 121. In the radial direction of the electric drive bridge motor body 1, the protrusion 121 protrudes relative to the rear end cover 11, and the two low-voltage outgoing line positions 13 are located on the protrusion 121.

[0067] To make it easier to understand, let's put it another way: On the axial direction of the electric drive bridge motor body 1, the projection of the protrusion 121 is located outside the projection of the rear end cover 11.

[0068] The suspension mounting post 14 is provided on the rear end cover 11, and the protrusion 121 protrudes relative to the rear end cover 11 to further prevent the occurrence of... Figure 1 This illustrates the interference between the suspended mounting post 14 and the low-voltage output position 13, while also facilitating the placement of the suspended mounting post 14.

[0069] Based on the configuration of this embodiment, the suspended mounting post 14 and the low-voltage outgoing line position 13 do not affect each other in terms of position layout.

[0070] The protrusion 121 can be considered to include two protruding sub-parts, with two low-voltage outgoing line positions 13 respectively located on the two protruding sub-parts.

[0071] See Figure 5In this embodiment, the electric drive bridge motor body 1 also includes an integrally formed base 15 and reinforcing ribs 16, and the rear end cover 11 is fixedly connected to the base 15.

[0072] Base 15 is a standard configuration and will not be described in detail here.

[0073] The reinforcing rib 16 improves the structural strength of the electric drive bridge motor body 1 by increasing the structural strength of the base 15. At the same time, it also facilitates the assembly of the base 15 with the rear end cover 11 and the front end cover 17 described below.

[0074] See Figure 5 In this embodiment, multiple reinforcing ribs 16 are provided, and each reinforcing rib 16 is evenly distributed circumferentially around the axis of the base 15. This arrangement makes the structural stress uniformity of the base 15 better, and at the same time, it further facilitates the assembly of the base 15 with the rear end cover 11 and the front end cover 17 described below.

[0075] See Figures 3-5 In this embodiment, the electric drive bridge motor body 1 further includes a front end cover 17 connected to the base 15. In the axial direction of the base 15, the front end cover 17 and the rear end cover 11 are respectively disposed at both ends of the base 15.

[0076] The front end cover 17 is provided with a plurality of first bolt through holes 171 corresponding to each of the reinforcing ribs 16, and each of the first bolt through holes 171 is equidistantly distributed in the circumferential direction of the front end cover 17.

[0077] The rear end cover 11 is provided with a plurality of second bolt through holes 111 corresponding to each of the reinforcing ribs 16 and each of the first bolt through holes 171, and each of the second bolt through holes 111 is equidistantly distributed in the circumferential direction of the rear end cover 11.

[0078] The number of the reinforcing rib 16, the first bolt through hole 171, and the second bolt through hole 111 are the same.

[0079] The assembly of the front cover 17 and the base 15 will be described in the following description. The assembly of the rear cover 11 and the base 15 will be described in the same way: The front cover 17 and the base 15 are fixedly assembled through the first bolt through hole 171 and the reinforcing rib 16. The threaded connection method will not be described in detail here. When assembling the two, they can be rotated by a predetermined angle. For example, if there are 7 first bolt through holes 171, they can be rotated 360° / 7 without affecting the assembly of the two.

[0080] To highlight the advantages of this embodiment, the following additional explanation is provided: In some cases, the front cover 17 can be installed with the reducer via a mounting flange, which will not be elaborated here; correspondingly, the front cover 17 and the reducer are provided with third bolt through holes 18, and these third bolt through holes 18 are randomly distributed (see...). Figure 2 Unlike the first bolt through-hole 171, the third bolt through-hole 18 on the front end cover 17 is not evenly distributed. In this case, when the front end cover 17 is switched between the left motor front end cover 17 and the right motor front end cover 17, it is not easy for the third bolt through-hole 18 on the front end cover 17 to be misaligned with the first bolt through-hole 171, making it difficult to adapt to the previous reducer and requiring the replacement of the front end cover 17. However, when the front end cover 17 can be rotated to a predetermined angle and installed on the base 15, the third bolt through-hole 18 on the front end cover 17 continuously adjusts its position during the rotation to correspond with the third bolt through-hole 18 on the previous reducer, avoiding the need to replace the front end cover 17 and further reducing structural costs. When the front end cover 17 needs to be installed on different electric drive bridge structures, it also increases the possibility of adapting to different reducers and avoids the need to use different front end cover 17 molds to produce different front end cover 17s.

[0081] In summary, the front cover 17 and rear cover 11 of the electric drive bridge motor in this application have the characteristics of strong versatility, and the total cost of the electric drive bridge structure can be reduced by reducing mold costs.

[0082] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An electric drive axle motor that can be arranged mirror-symmetrically, characterized in that: Includes an electric drive bridge motor body (1), the electric drive bridge motor body (1) comprising: Rear end cover (11); Junction box (12) is located on the rear end cover (11), and the junction box (12) has two low-voltage outlet positions (13). Suspension mounting posts (14) are provided on the rear end cover (11) and there are multiple of them; Each of the aforementioned suspension mounting columns (14) is divided into two groups, and the two groups of suspension mounting columns (14) are mirror-symmetrically arranged with a predetermined axis as the line of symmetry. The electric drive bridge motor selectively uses multiple of the aforementioned suspension mounting columns (14) on one side or the other side of the mirror-symmetrical arrangement. The two low-voltage outlet positions (13) are set in a mirror symmetry with the predetermined axis as the line of symmetry. The electric drive bridge motor selectively uses one of the low-voltage outlet positions (13) in the mirror symmetry setting on one side or the other side.

2. An electric drive axle motor arrangeable in mirror symmetry according to claim 1, characterized in that The predetermined axis is a symmetrical axis that is perpendicular to and intersects the rotor center axis of the electric drive bridge motor body (1), and the orthogonal projection of the symmetrical axis on the axial direction of the electric drive bridge motor body (1) is located on the orthogonal projection of the junction box (12).

3. An electric drive axle motor arrangeable in mirror symmetry according to claim 1, characterized in that: The junction box (12) has a protrusion (121) that protrudes from the rear end cover (11) in the radial direction of the electric drive bridge motor body (1), and the two low-voltage outlet positions (13) are located on the protrusion (121).

4. An electrically driven axle motor that can be arranged in mirror symmetry according to any one of claims 1 - 3, characterized in that: The electric drive bridge motor body (1) also includes an integrally formed base (15) and reinforcing ribs (16), and the rear end cover (11) is fixedly connected to the base (15).

5. An electric drive axle motor arrangeable in mirror symmetry according to claim 4, characterized in that: The reinforcing ribs (16) are provided in multiples, and each reinforcing rib (16) is evenly distributed in a circular pattern around the axis of the base (15).

6. An electric drive axle motor arrangeable in mirror symmetry according to claim 5, characterized in that: The electric drive bridge motor body (1) also includes a front end cover (17) connected to the base (15). In the axial direction of the base (15), the front end cover (17) and the rear end cover (11) are respectively disposed at both ends of the base (15). The front end cover (17) is provided with a plurality of first bolt through holes (171) corresponding to each of the reinforcing ribs (16), and each of the first bolt through holes (171) is equidistantly distributed in the circumferential direction of the front end cover (17); The rear end cover (11) is provided with a plurality of second bolt through holes (111) corresponding to each of the reinforcing ribs (16) and each of the first bolt through holes (171), and each of the second bolt through holes (111) is equidistantly distributed in the circumferential direction of the rear end cover (11). The number of the reinforcing ribs (16), the first bolt through hole (171), and the second bolt through hole (111) are the same.

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