Motor system equipment and vehicle
By designing the chamber structure in the motor system equipment and using seals to block the condensation flow, short circuits and reliability problems caused by condensation are solved, and better sealing performance and reliability are achieved.
Patent Information
- Application Number
- CN202421791024.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The existing motor system equipment has shortcomings in terms of sealing and consumable reduction, which leads to the transfer of condensation from the rotary transformer chamber to the motor controller chamber, which easily leads to short circuits and poor reliability problems.
The sealing connection between the chambers is achieved by designing the first and second chambers and providing a seal between the rotating shaft and the first end cover assembly, including an annular base and a water-absorbing patch, which blocks the flow of condensed condensation.
The condensation from the first chamber into the second chamber is effectively avoided, which improves the sealing performance of the motor system equipment, reduces the risk of short circuits, and improves reliability.
Smart Images
Figure CN222868647U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of motor technology, and in particular to a motor system device and a vehicle. Background Art
[0002] The motor system equipment generally includes a motor and a matching motor controller. At present, in order to improve the sealing performance and reduce consumables, the chamber where the motor controller is located and the chamber where the rotary transformer is located are generally directly connected to achieve sealing. However, since the motor generates heat during operation, when the surface temperature of the motor is higher than the dew point temperature of the surrounding air, condensation will be generated. When the condensation is transferred from the chamber where the rotary transformer is located to the chamber where the motor controller is located, it is easy to cause a short circuit in the motor controller, resulting in poor reliability.
[0003] Therefore, it is necessary to design a motor system device with good sealing performance. Utility Model Content
[0004] The present application provides a motor system device and a vehicle with good sealing performance.
[0005] According to a first aspect of the embodiments of this specification, a motor system device is provided, comprising:
[0006] A first end cap assembly, a second end cap assembly and a motor, wherein the first end cap assembly forms a first chamber, and the second end cap assembly is connected to the first end cap and forms a second chamber communicating with the first chamber;
[0007] The motor is accommodated in the first chamber and the rotating shaft thereof extends from the first chamber to the second chamber. A sealing member is provided between the rotating shaft and the first end cover assembly.
[0008] Furthermore, the first end cover assembly includes a front end cover, a casing and a first rear end cover, and the front end cover and the rear end cover are respectively fixed at two ends of the casing to form the first chamber.
[0009] Furthermore, the sealing member includes an annular base and a water-absorbing patch, wherein the annular base is arranged between the rotating shaft and the first rear end cover; and the water-absorbing patch is bonded to the inner wall of the annular base.
[0010] Furthermore, the material of the water-absorbing patch is sponge.
[0011] Further, the second end cover assembly includes a second rear end cover, and the second rear end cover is fixed on the first rear end cover to form the second chamber.
[0012] Furthermore, the motor system equipment also includes a rotary transformer and a transformer pressure plate, and the rotary transformer is fixed on the first rear end cover through the transformer pressure plate.
[0013] Furthermore, the first rear end cover includes an end cover body and an annular boss, wherein the annular boss is located at one end of the end cover body away from the casing and protrudes outward in the circumferential direction relative to the end cover body; the rotary transformer and the transformer pressure plate are located in the installation space formed by the annular boss and the end cover body.
[0014] Furthermore, the motor system device also includes a controller, which is located in the second chamber and fixed on the second rear end cover, and the controller is electrically connected to the rotary transformer.
[0015] Furthermore, the motor system device further comprises a first ball bearing and a second ball bearing located at both ends of the rotating shaft;
[0016] The front end cover and the rotating shaft are respectively provided with a first stop shoulder and a second stop shoulder located on both sides of the first ball bearing;
[0017] The first rear end cover and the rotating shaft are respectively provided with a third shoulder and a fourth shoulder located on both sides of the second ball bearing.
[0018] According to a second aspect of the embodiments of this specification, a vehicle is provided, comprising the motor system device described in the first aspect above.
[0019] The present application has the following beneficial effects: a first chamber is formed by a first end cap assembly, and a second end cap assembly is connected to the first end cap assembly to form a second chamber connected to the first chamber, thereby achieving a sealed connection between the first chamber and the second chamber. In addition, in order to prevent condensation in the first chamber from entering the second chamber from the first chamber through the rotating shaft, the present application further blocks the flow of condensation by providing a sealing member between the rotating shaft and the first end cap assembly, and has good sealing performance.
[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.
[0022] Figure 1 is a cross-sectional view of the motor system device of the present application;
[0023] Figure 2 yes Figure 1 A partial enlarged view of
[0024] Figure 3 yes Figure 1 Another partial enlarged view of;
[0025] Figure 4 It is a structural schematic diagram of the sealing member of the present application.
[0026] Description of reference numerals:
[0027] 100-first chamber; 200-second chamber; 10-front end cover; 11-first shoulder; 20-casing; 30-first rear end cover; 31-end cover body; 32-annular boss; 33-third shoulder; 40-second rear end cover; 50-rotating shaft; 51-second shoulder; 52-fourth shoulder; 60-seal; 61-annular base; 611-chamfer; 62-water-absorbing patch; 71-rotating transformer; 72-transformer pressure plate; 80-controller; 91-first ball bearing; 92-second ball bearing. DETAILED DESCRIPTION
[0028] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.
[0029] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this specification. The singular forms "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0030] It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this specification, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".
[0031] Next, the embodiments of this specification are described in detail.
[0032] Reference Figure 1As shown, this embodiment discloses a motor system device, including a first end cover assembly, a second end cover assembly and a motor, the first end cover assembly forms a first chamber 100, the second end cover assembly is connected to the first end cover and forms a second chamber 200 connected to the first chamber 100; the motor is accommodated in the first chamber 100 and its rotating shaft 50 extends from the first chamber 100 to the second chamber 200, and a seal 60 is provided between the rotating shaft 50 and the first end cover assembly.
[0033] In this way, the first end cover assembly forms the first chamber 100, and the second end cover assembly is connected to the first end cover assembly to form the second chamber 200 communicating with the first chamber 100, thereby achieving a sealed connection between the first chamber 100 and the second chamber 200. In addition, in order to prevent the condensation in the first chamber 100 from entering the second chamber 200 from the first chamber 100 through the rotating shaft 50, a sealing member 60 is provided between the rotating shaft 50 and the first end cover assembly to further block the flow of condensation, and the sealing performance is good.
[0034] In this embodiment, the first end cover assembly includes a front end cover 10 , a housing 20 and a first rear end cover 30 . The front end cover 10 and the first rear end cover 30 are respectively fixed to two ends of the housing 20 to form a first chamber 100 .
[0035] The front cover 10 and the housing 20 are connected as a whole by bolts, and the connection is sealed by means of sealant or a sealing ring, etc. The housing 20 and the first rear cover 30 are also connected as a whole by bolts, and the connection is sealed by means of sealant or a sealing ring, etc.
[0036] In this embodiment, a sealing member 60 is provided between the rotating shaft 50 and the first rear end cover 30. Figure 4 As shown, the seal 60 includes an annular base 61. The first rear end cover 30 is provided with a first through hole for the rotating shaft 50 to pass through. The outer wall of the annular base 61 is interference fit with the first through hole. In this way, the annular base 61 is deformed to achieve a sealing effect. In this embodiment, the material of the annular base 61 is rubber.
[0037] In this embodiment, one end of the annular base 61 is provided with a chamfer 611 along the circumferential direction. Thus, when the annular base 61 is assembled into the first through hole, it can play a guiding role, making it easier to assemble the annular base 61 into the first through hole.
[0038] In order to improve the sealing effect and absorb the condensation, in this embodiment, the sealing member 60 further includes a water-absorbing patch 62, and the annular base 61 is provided with a second through hole for the shaft 50 to pass through; the water-absorbing patch 62 is bonded to the inner wall of the second through hole, and the water-absorbing patch 62 and the shaft 50 are interference-fitted. In this way, the water-absorbing patch 62 is deformed to achieve a sealing effect, wherein the water-absorbing patch 62 can be a sponge or any other suitable water-absorbing material.
[0039] In this embodiment, the second end cover assembly includes a second rear end cover 40, which is fixed to the first rear end cover 30 to form a second chamber 200. The first rear end cover 30 and the second rear end cover 40 are also connected together by bolts, and the connection is sealed by means of sealant or sealing ring.
[0040] Reference Figure 1 As shown, the motor system device also includes a rotary transformer 71 and a transformer pressure plate 72. The rotor of the rotary transformer 71 is fixed to the end of the portion of the rotating shaft 50 extending from the first rear end cover 30. The rotary transformer 71 and the first rear end cover 30 are fitted with a gap. The stator of the rotary transformer 71 is fixed to the first rear end cover 30 through the transformer pressure plate 72. The rotor and the stator are coaxially arranged. In this embodiment, the transformer pressure plate 72 and the first rear end cover 30 are sealed by means of sealant or a sealing ring.
[0041] Considering that the rotary transformer 71 and the transformer pressure plate 72 are arranged outside the first chamber 100, the first rear end cover 30 in the present application includes an end cover body 31 and an annular boss 32, the annular boss 32 is located at one end of the end cover body 31 away from the housing 20 and is circumferentially protruding outward relative to the end cover body 31; the rotary transformer 71 and the transformer pressure plate 72 are located in the installation space formed by the annular boss 32 and the end cover body 31. In this way, the rotary transformer 71 and the transformer pressure plate 72 can be stored in the first rear end cover 30 to play a protective role.
[0042] Reference Figure 1 As shown, the motor system device further includes a controller 80, which is located in the second chamber 200 and fixed on the second rear end cover 40, and the controller 80 is electrically connected to the rotary transformer 71. In this way, the controller 80 sends instructions to the rotary transformer 71, and then the rotary transformer 71 controls the rotation relationship between the stator and the rotor, and finally controls the rotation of the shaft 50.
[0043] Reference Figure 2-3 As shown, the motor system device also includes a first ball bearing 91 arranged along the outer circumference of one end of the rotating shaft 50, the first ball bearing 91 is interference fit with the rotating shaft 50, and the first ball bearing 91 is clearance fit with the front end cover 10. In this way, it can support one end of the rotating shaft 50. The synchronous motor system device also includes a second ball bearing 92 arranged along the outer circumference of the other end of the rotating shaft 50, the second ball bearing 92 is interference fit with the rotating shaft 50, and the second ball bearing 92 is clearance fit with the first rear end cover 30. In this way, it can support both ends of the rotating shaft 50.
[0044] In this embodiment, the front end cover 10 is provided with a first shoulder 11, and the rotating shaft 50 is provided with a second shoulder 51. The first shoulder 11 and the second shoulder 51 are arranged along the axial direction and are respectively located on both sides of the first ball bearing 91. In this way, one end of the rotating shaft 50 is axially positioned. In addition, in this embodiment, the first rear end cover 30 is provided with a third shoulder 33, and the rotating shaft 50 is provided with a fourth shoulder 52. The third shoulder 33 and the fourth shoulder 52 are arranged along the axial direction and are respectively located on both sides of the second ball bearing 92. In this way, the other opposite end of the rotating shaft 50 can be axially positioned.
[0045] This embodiment also discloses a vehicle, including the above-mentioned motor system device. When the motor system device is installed on the vehicle, failures caused by sealing can be avoided, the stability and safety of the vehicle's operation can be ensured, and functional and performance advantages can be provided to the vehicle.
[0046] Those skilled in the art will readily appreciate other embodiments of the specification after considering the specification and practicing the utility model claimed herein. The specification is intended to cover any variations, uses or adaptations of the specification that follow the general principles of the specification and include common knowledge or customary techniques in the art that are not claimed in the specification. The specification and examples are to be considered exemplary only, and the true scope and spirit of the specification are indicated by the following claims.
[0047] It should be understood that the present description is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.
[0048] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.
Claims
1. A motor system device, characterized in that: It comprises a first end cover assembly, a second end cover assembly and a motor, wherein the first end cover assembly forms a first chamber, and the second end cover assembly is connected to the first end cover and forms a second chamber communicating with the first chamber; The motor is accommodated in the first chamber and the rotating shaft thereof extends from the first chamber to the second chamber. A sealing member is provided between the rotating shaft and the first end cover assembly.
2. The motor system device according to claim 1, characterized in that: The first end cover assembly includes a front end cover, a housing and a first rear end cover, The front end cover and the first rear end cover are respectively fixed at two ends of the housing to form the first chamber.
3. The motor system device according to claim 2, characterized in that: The sealing member comprises an annular base and a water-absorbing patch. The annular base is arranged between the rotating shaft and the first rear end cover; The water-absorbing patch is bonded to the inner wall of the annular base.
4. The motor system device according to claim 3, characterized in that: The material of the water-absorbing patch is sponge.
5. The motor system device according to claim 2, characterized in that: The second end cover assembly includes a second rear end cover, The second rear end cover is fixed to the first rear end cover to form the second chamber.
6. The motor system device according to claim 5, characterized in that: The motor system device also includes a rotary transformer and a transformer pressure plate. The rotary transformer is fixed on the first rear end cover through the transformer pressing plate.
7. The motor system device according to claim 6, characterized in that: The first rear end cover comprises an end cover body and an annular boss, The annular boss is located at one end of the end cover body away from the housing and is arranged to protrude outwardly in the circumferential direction relative to the end cover body; The rotary transformer and the transformer pressing plate are located in an installation space formed by the annular boss and the end cover body.
8. The motor system device according to claim 6, characterized in that: The motor system device also includes a controller, The controller is located in the second chamber and fixed on the second rear end cover, and the controller is electrically connected to the rotary transformer.
9. The motor system device according to claim 2, characterized in that: The motor system device also includes a first ball bearing and a second ball bearing located at both ends of the rotating shaft; The front end cover and the rotating shaft are respectively provided with a first stop shoulder and a second stop shoulder located on both sides of the first ball bearing; The first rear end cover and the rotating shaft are respectively provided with a third shoulder and a fourth shoulder located on both sides of the second ball bearing.
10. A vehicle, characterized in that: A motor system device comprising any one of claims 1 to 9.