Stator and hybrid power box shell assembling method and device, storage medium and electronic equipment

Abstract

The invention discloses an assembling method and device for a stator and a hybrid power box shell, a storage medium and electronic equipment. The method comprises the steps that the hybrid power box shell is heated based on a preset temperature value; if the hybrid power box shell is heated to the preset temperature value, determining a deformation reference curve based on a stator hole of the hybrid power box shell; the center of the deformation reference curve coincides with the circle center of a preset circular curve, and the actual expansion amount value of the deformation reference curve relative to the preset circular curve is obtained; and if the actual expansion amount value is within the preset expansion amount interval, correspondingly installing the stator into the deformed stator hole. According to the technical scheme, the probability of clamping stagnation during assembly of the stator and the hybrid power box shell can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stator installation, in particular to a stator and hybrid box shell assembly method and device, a storage medium and an electronic device. BACKGROUND

[0002] In the interference fit assembly of the stator and the hybrid box shell, the hybrid box shell is usually heated in the stator hole by using a heating device, and after the hybrid box shell is heated and expanded to a target state, the stator is pressed into the stator hole by a tool clamping the stator (core), and finally the interference assembly of the hybrid box shell and the stator is completed by cooling and shrinking the hybrid box shell.

[0003] However, in a multi-stator hybrid box, multiple thermocouples will heat multiple stator holes on the hybrid box shell at the same time. At this time, since the heating center of the hybrid box shell is no longer the center of the stator hole, irregular expansion of the hybrid box shell will occur, and the actual expansion value of the stator hole cannot be accurately determined, which will eventually lead to a high probability of stator jamming during pressing.

[0004] Application Content

[0005] In view of the above problems, the present application provides a stator and hybrid box shell assembly method, device, storage medium and electronic device, which can reduce the probability of stator and hybrid box shell assembly jamming.

[0006] According to a first aspect of the present application, a stator and hybrid box shell assembly method is provided, comprising: heating the hybrid box shell based on a preset temperature value; if the hybrid box shell is heated to the preset temperature value, determining a deformation reference curve based on the stator hole of the hybrid box shell; superimposing the center of the deformation reference curve and the center of a preset circular curve, and obtaining the actual expansion value of the deformation reference curve compared with the preset circular curve; if the actual expansion value is within a preset expansion value interval, corresponding installation of the stator into the stator hole after deformation.

[0007] In an optional manner, the step of superimposing the center of the deformation reference curve and the center of the preset circular curve comprises: decomposing the deformation reference curve into a plurality of high-order curves about the deformation of the stator hole along its circumferential direction based on Fourier transform, wherein the high-order curve is a closed curve; superimposing a plurality of high-order curves based on the center of the preset circular curve, so that the center of the deformation reference curve is superimposed with the center of the preset circular curve.

[0008] In an alternative manner, the method of obtaining the actual expansion value of the deformation reference curve relative to the preset circle curve comprises: obtaining a minimum expansion value of the deformation reference curve relative to the preset circle curve and a target expansion value of the stator hole, wherein the expansion value of the deformation reference curve relative to the preset circle curve is positive when the deformation reference curve is convex outward relative to the preset circle curve, and the expansion value of the deformation reference curve relative to the preset circle curve is negative when the deformation reference curve is concave inward relative to the preset circle curve; and determining the sum of the minimum expansion value and the target expansion value as the actual expansion value.

[0009] In an alternative manner, the method of obtaining the minimum expansion value of the deformation reference curve relative to the preset circle curve comprises: dividing the deformation reference curve into a plurality of target curve groups, each of the target curve groups comprising a first curve segment and a second curve segment arranged in a one-to-one correspondence at two ends of a diameter of the preset circle curve; determining a plurality of minimum expansion candidate values based on the plurality of target curve groups in a one-to-one correspondence, the minimum expansion candidate value being the sum of the expansion value of the first curve segment and the expansion value of the second curve segment in each of the target curve groups; and determining the minimum expansion value based on the plurality of candidate expansion values.

[0010] In an alternative manner, the method further comprises: if the actual expansion value is within a preset expansion value interval, obtaining an offset of a circle center of the deformation reference curve relative to a preset circle center; and installing the stator into the stator hole after deformation based on the offset.

[0011] In an alternative manner, the method further comprises: if the actual expansion value is outside a preset expansion value interval, adjusting the preset temperature value correspondingly, and re-determining the actual expansion value of the deformation reference curve relative to the preset circle curve until the actual expansion value is within the preset expansion value interval.

[0012] In an alternative manner, the method of determining the deformation reference curve based on the stator hole of the hybrid box shell comprises: obtaining positioning information of the hybrid box shell on a production line; establishing a finite element analysis model based on the positioning information and the preset temperature value, the finite element analysis model comprising a hybrid box shell model and a model of a tool corresponding to the hybrid box shell; and determining the deformation reference curve corresponding to the stator hole based on the finite element analysis model.

[0013] According to a second aspect of the embodiments of the present application, a stator and hybrid box shell assembling device is provided, the device comprising: a heating module configured to heat the hybrid box shell based on a preset temperature value; a determination module configured to determine a deformation reference curve based on a stator hole of the hybrid box shell if the hybrid box shell is heated to the preset temperature value; an acquisition module configured to coincide a center of the deformation reference curve with a center of a preset circle curve and acquire an actual expansion value of the deformation reference curve compared with the preset circle curve; and an installation module configured to install a stator into the stator hole after deformation if the actual expansion value is within a preset expansion value interval.

[0014] According to a third aspect of the embodiments of the present application, an electronic device is provided, comprising: a controller; and a memory configured to store one or more programs, which, when executed by the controller, cause the controller to implement the stator and hybrid box shell assembling method described above.

[0015] According to a fourth aspect of the embodiments of the present application, a computer readable storage medium is provided, the storage medium storing a computer program, the computer program comprising at least one executable instruction, which, when executed on the stator and hybrid box shell assembling device / electronic device, causes the stator and hybrid box shell assembling device / electronic device to perform the operations of the stator and hybrid box shell assembling method as described above.

[0016] In the embodiments of the present application, since the stator and hybrid box shell assembling method determines the actual expansion value of the deformation reference curve in the circumferential direction of the stator hole by coinciding the center of the deformation reference curve with the center of the preset circle curve and then acquiring the actual expansion value of the deformation reference curve compared with the preset circle curve, compared with directly acquiring the actual expansion value of the deformation reference curve, the influence of the offset of the center of the stator hole in irregular thermal deformation of the hybrid box shell during multi-hole heating on the calculation of the actual expansion value can be accurately excluded, and the actual expansion value of the stator hole can be more accurately determined. Finally, the stator is installed into the deformed stator hole only when the actual expansion value is within the preset expansion value interval, thereby effectively reducing the occurrence of the situation that the diameter of the stator hole after thermal deformation is too small (insufficient expansion) or the shape is irregular (such as ovalization, uneven expansion) and cannot meet the required fitting state (i.e., diameter and shape requirements) for installing the stator, and finally significantly reducing the phenomenon of stator installation jamming.

[0017] The above description is only a summary of the technical solutions of the embodiments of the present application, in order to more clearly understand the technical means of the embodiments of the present application, the embodiments of the present application can be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the specific embodiments of the present application are described below. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the application and, together with the description, serve to explain the principles of the application. In the drawings:

[0019] Figure 1 A flowchart diagram of steps S110-S140 of a method for assembling a stator and a hybrid box shell is shown.

[0020] Figure 2 A flowchart diagram of steps S131-S132 of a method for assembling a stator and a hybrid box shell is shown.

[0021] Figure 3 A flowchart diagram of steps S133-S134 of a method for assembling a stator and a hybrid box shell is shown.

[0022] Figure 4 A flowchart diagram of steps S1341-S143 of a method for assembling a stator and a hybrid box shell is shown.

[0023] Figures 5-10 A plurality of high-order curves into which a deformation reference curve is decomposed by a method for assembling a stator and a hybrid box shell is shown.

[0024] Figure 11 A structural diagram of an assembly device for a stator and a hybrid box shell is shown.

[0025] Figure 12 A structural diagram of a computer system of an embodiment of an electronic device is shown. DETAILED DESCRIPTION

[0026] The exemplary embodiments will be described in detail herein below with reference to the drawings. In the following description, the same drawings reference numerals are used to denote elements having the same or similar functions and / or structures. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0027] The block diagrams shown in the drawings are merely functional entities, and do not necessarily have to correspond to physically independent entities. That is, the functional entities can be implemented in software, or in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0028] The flowcharts shown in the drawings are only illustrative, and do not necessarily include all contents and operations / steps, nor are they necessarily executed in the order described. For example, some operations / steps can be further divided, and some operations / steps can be combined or partially combined, so the order of execution can be changed according to the situation.

[0029] In the present application, "multiple" refers to two or more. "And / or" describes the association between the associated objects, indicating that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0030] In combination Figures 1-12 As shown in the drawings, the embodiments of the present application respectively provide an assembly method of a stator and a hybrid box shell, an assembly device 300 of a stator and a hybrid box shell, an electronic device, a computer readable storage medium, and a computer program product. The working principle and specific implementation of the assembly method of the stator and the hybrid box shell, the assembly device 300 of the stator and the hybrid box shell, the electronic device, the computer readable storage medium, and the computer program product will be described in detail below:

[0031] First of all, it needs to be pointed out that the stator of the motor is generally assembled by interference fit with the hybrid box shell. Specifically: usually, the hybrid box shell is heated in the stator hole by using a heating device, and after the hybrid box shell is heated and expanded to reach the target state, the stator is pressed into the stator hole by a stator clamping tool, and finally the interference assembly of the hybrid box shell and the stator is completed by cooling and shrinking the hybrid box shell.

[0032] Among them, in the heating process of the hybrid box shell of a single motor, the heating center is at the center of the stator hole, and the hybrid box shell can be expanded from the center of the stator hole, so as to facilitate the normal pressing of the stator by the stator clamping tool.

[0033] However, in the heating process of the hybrid box shell of 2 or more multi-stator, the expansion of different stator holes will be affected by each other due to the simultaneous heating of multiple heating devices. Secondly, due to the influence of the structural stiffness and uneven temperature distribution of the hybrid box shell (caused by the mutual influence of multiple heating devices), irregular expansion phenomenon will be aggravated, and the stator clamping tool will have a high probability of pressing jamming when pressing the stator.

[0034] Based on this, the present application provides an assembly method of a stator and a hybrid box shell, which can reduce the probability of jamming during assembly of the stator and the hybrid box shell.

[0035] In an exemplary embodiment of the present application,Figure 1 A flowchart diagram of steps S110-S140 of a method for assembling a stator and a hybrid box shell is shown. Please refer to Figure 1 As shown, the method comprises steps S110 to S140, which are described in detail as follows:

[0036] Step S110: heating the hybrid box shell to a preset temperature value.

[0037] In an exemplary embodiment of the present application, the method for determining the preset temperature value comprises: first obtaining a target expansion value of the hybrid box shell, a thermal expansion coefficient of the hybrid box shell, and a stator hole radius of the hybrid box shell (initial stator hole radius when not heated). The target expansion value of the hybrid box shell can be obtained by individual setting by the user according to the size of the stator hole when not heated and the size of the stator itself. The thermal expansion coefficient of the hybrid box shell can be determined by the material and structure of the hybrid box shell. Finally, the preset temperature value is calculated by the formula: target expansion value = thermal expansion coefficient x stator hole radius x preset temperature value.

[0038] Further, when heating the hybrid box shell to the preset temperature value, the inner wall of the stator hole can be heated to the preset temperature value by the heating device. The heating device can be a thermocouple.

[0039] Step S120: if the hybrid box shell is heated to the preset temperature value, a deformation reference curve is determined based on the stator hole of the hybrid box shell.

[0040] In an exemplary embodiment of the present application, after heating the inner wall of the stator hole to the preset temperature value by the heating device, it is difficult to heat all positions of the hybrid box shell to the preset temperature value. Therefore, the temperature distribution of other parts of the hybrid box shell after heating the target area (inner wall of the stator hole) to the preset temperature value is analyzed by fluid CFD (Computational Fluid Dynamics) heat transfer CAE (Computer Aided Engineering), or the temperature distribution of the hybrid box shell at each position is tested and obtained by arranging temperature sensors during the trial production stage, so as to facilitate subsequent obtaining of the deformation reference curve of the stator hole of the hybrid box shell along its circumferential direction according to the temperature distribution of the hybrid box shell. Therefore, the method for obtaining the deformation reference curve of the stator hole of the hybrid box shell along its circumferential direction comprises steps a-c:

[0041] Step a: obtaining positioning information of the hybrid box shell on the production line. The positioning information includes the actual positioning mode of the hybrid box shell on the production line.

[0042] Step b: establishing a finite element analysis model based on the positioning information and the preset temperature value, the finite element analysis model including a hybrid box shell model and a model of a tool corresponding to the hybrid box shell.

[0043] For example, after obtaining the temperature distribution of the hybrid box shell, the temperature distribution can be input as an analysis boundary, and the actual positioning mode of the hybrid box shell on the production line can be input as an analysis constraint condition, and then a solid finite element analysis model including the hybrid box shell and components such as the tool placing the hybrid box shell on the production line is established.

[0044] Step c: determining the deformation reference curve of the stator hole along the circumferential direction thereof based on the finite element analysis model.

[0045] For example, the expansion amount of the hybrid box shell can be calculated based on the finite element analysis model, and the deformation reference curve of the stator hole along the circumferential direction thereof can be obtained based on the expansion amount of the hybrid box shell.

[0046] It should be understood that the deformation reference curve is a projection boundary curve of the circumferential profile of the stator hole after heating on a two-dimensional plane.

[0047] Step S130: superimposing the center of the deformation reference curve on the center of the preset circular curve, and obtaining the actual expansion amount value of the deformation reference curve compared with the preset circular curve.

[0048] It should be understood that, during the heating of the stator hole by the heating device, the center of the stator hole after heating may be offset compared with the center of the original stator hole, which may affect the accuracy of the actual expansion amount value. Therefore, a preset circular curve is introduced, the center of the deformation reference curve is superimposed on the center of the preset circular curve, and the actual expansion amount value of the deformation reference curve compared with the preset circular curve is obtained, so that the actual expansion amount value of the stator hole can be more accurately determined.

[0049] It should be understood that the preset circular curve is a projection boundary curve of the circumferential profile of the stator hole on a two-dimensional plane when the inner wall of the stator hole is expanded to meet the expected requirements of installing the stator. The preset circular curve is a standard circular curve.

[0050] In an example embodiment of the present application, Figure 2 A flowchart diagram of steps S131-S132 of a stator and hybrid box shell assembly method provided by an embodiment of the present application is shown, and the steps are described in detail as follows in combination with Figure 1 As shown, the method of superimposing the center of the deformation reference curve on the center of the preset circular curve includes steps S131 and S132, which are described in detail as follows:

[0051] Step S131: Based on Fourier transform, decompose the deformation reference curve into multiple higher-order curves about the deformation of the stator hole along its circumference; wherein, the higher-order curves are closed curves.

[0052] For example, a polar coordinate system can be established first (angle range: 0-2π), and then the centers of multiple higher-order curves can be aligned with the origin of the polar coordinate system. The formula for decomposing the deformation reference curve into multiple higher-order curves related to the circumferential deformation of the stator aperture based on Fourier transform is as follows: k is the order value; A k The amplitude of the corresponding order; δ k Φ is the offset phase angle for the corresponding order; r0 is a constant (k=0, curve is 0-360°); Φ is the angle within 0-360°, specifically: Φ is the polar angle of the deformation reference curve in the polar coordinate system.

[0053] In an exemplary embodiment of this application, the deformation reference curve is decomposed into K+1 closed curves with polar angles of 0-360° about the stator aperture based on Fourier transform, namely: D 0阶 (K=0) (as shown) Figure 5 (circular curve shown by the dashed line) D 1阶 (K=1), D 2阶 (K=2) (as shown) Figure 6 (circular curve shown by the dashed line), D3 order (K=3) (as shown by the dashed line) Figure 7 (The circular curve shown by the dashed line), D4 order (K=4) (as shown by the dashed line) Figure 8 (The circular curve shown by the dashed line)...D n阶 (K=n)(as shown) Figure 9 The circular curve shown by the dashed line (where D is the center curve) 0阶 +D 1阶 +D 2阶 +...+D n阶 =D 总 (That is, ξ(Φ)).

[0054] Furthermore, D 0阶 =r0, where r0 is a constant that does not change with the angle, which is the curve after meeting the target expansion value in step S110. D 1阶 =A1Cos(Φ+δ1), where, D 1阶 The offset of the circle center is represented by the offset angle (direction) δ1 and the eccentricity distance A1; D 2阶 ... D 10阶 For higher-order concentric deformation, that is, higher-order curves about the deformation of the stator hole along its circumference.

[0055] It should be understood that the preset circular curve is D. 0阶The curve (i.e. the curve meeting the target expansion value in step S110) is a preset circle curve, i.e. the deformation reference curve of the normal projection of the inner wall of the stator hole on the plane when the stator hole is expanded to meet the expected requirements of the installation stator. The preset circle curve is a standard circle.

[0056] Step S132: combining Figures 5-10 As shown, the multiple high-order curves are superimposed (the superimposed curve is shown in FIG. 13B) based on the center of the preset circle curve, so that the center of the deformation reference curve coincides with the center of the preset circle curve and the origin of the polar coordinate system. Figure 10 As shown, the multiple high-order curves are superimposed (the superimposed curve is shown in FIG. 13B) based on the center of the preset circle curve, so that the center of the deformation reference curve coincides with the center of the preset circle curve and the origin of the polar coordinate system.

[0057] In an example embodiment of the present application, since D 0阶 does not change with the angle, D 1阶 characterizes the center offset condition, and based on the Fourier transform, the deformation reference curve can be decomposed into D 0阶 , D 1阶 , D 2阶 ... D 10阶 , and D 0阶 + D 1阶 + D 2阶 +... + D 10阶 = D 总 (i.e. ξ(Φ)). Therefore, by D 2阶 + D 3阶 +... + D 10阶 = D 高阶 , D 高阶 , i.e. about the high-order curve of the deformation of the stator hole along the circumference thereof, and D 高阶 is the high-order curve excluding the center offset of the stator hole.

[0058] It should be understood that the shape of D 高阶 is equivalent to the shape of the deformation reference curve, but the center of D 高阶 is not necessarily equivalent to the actual center of the stator hole of the hybrid case shell after heating. Wherein, D 1阶 characterizes the center offset condition of the deformation reference curve.

[0059] In an example embodiment of the present application, Figure 3 FIG. 13A shows a flow diagram of steps S133-S134 of a method for assembling a stator and a hybrid case shell according to an embodiment of the present application, in combination with Figure 2 As shown, the method for obtaining the actual expansion value of the deformation reference curve relative to the preset circle curve includes steps S133 to S134, which are described in detail as follows:

[0060] Step S133: Obtain the minimum expansion value of the deformation reference curve compared to the preset circle curve and the target expansion value of the stator hole, wherein the expansion value of the deformation reference curve when being concave compared to the preset circle curve is negative, and the expansion value of the deformation reference curve when being convex compared to the preset circle curve is positive.

[0061] Step S134: Determine the sum of the minimum expansion value and the target expansion value as the actual expansion value.

[0062] For example, if the target expansion value is a, the minimum expansion value is b, and the actual expansion value is c, then c = a + b.

[0063] In an example embodiment of the present application, Figure 4 A flowchart diagram of steps S1341-S143 of a stator and hybrid case assembly method provided by an embodiment of the present application is shown, in combination with Figure 4 As shown, the method for obtaining the minimum expansion value of the deformation reference curve compared to the preset circle curve includes steps S1341 to S1343, which are described in detail as follows:

[0064] Step S1341: Divide the deformation reference curve into a plurality of target curve groups, each of which includes a first curve segment and a second curve segment corresponding to each other arranged at both ends of the diameter of the preset circle curve.

[0065] For example, in the polar coordinate system, the preset circle curve can be divided into a plurality of sector regions, the central angles of the sector regions are equal, and the center of each sector region coincides with the center of the preset circle curve and the origin of the polar coordinate system. Each sector region includes a first curve segment or a second curve segment. In the same target curve group: if the maximum value of the polar angle of the sector region where the first curve segment is located is α1, and the maximum value of the polar angle of the sector region where the second curve segment is located is α2, then |α1-α2|=180°; if the maximum value of the polar angle of the sector region where the first curve segment is located is β1, and the maximum value of the polar angle of the sector region where the second curve segment is located is β2, then |β1-β2|=180°.

[0066] Step S1342: Determine a plurality of minimum expansion candidate values based on the one-to-one correspondence of the plurality of target curve groups, wherein the minimum expansion candidate value is the sum of the expansion value of the first curve segment and the expansion value of the second curve segment in each target curve group.

[0067] Step S1343: Determine the minimum expansion value based on the plurality of candidate expansion values.

[0068] Step S140: If the actual expansion value is within the preset expansion interval, the stator is installed in the stator hole after deformation, thereby reducing the occurrence of the situation that the diameter of the stator hole after deformation cannot meet the diameter required for installing the stator, and finally reducing the phenomenon of stator installation jamming. If the actual expansion value is outside the preset expansion interval, the preset temperature value is adjusted, and the actual expansion value of the deformation reference curve compared with the preset circle curve is re-determined until the actual expansion value is within the preset expansion interval.

[0069] For example, if the target expansion value is a, D 高阶 The minimum expansion value in the polar angle 0-360° of the polar coordinate is b (b<0). Then, the actual expansion value c=a+b. If it is judged that c is within the preset expansion interval, it can be determined that the expansion amount of the inner wall of the stator hole after heating by the heating device meets the requirement of installing the stator; if the actual expansion value c is less than the minimum value of the preset expansion interval, it does not meet the requirement, and then the preset temperature value needs to be increased to heat the hybrid case body again, and the steps S110-S140 are repeated until the actual expansion value is within the preset expansion interval; if the actual expansion value c is greater than the maximum value of the preset expansion interval, it also does not meet the requirement, and then the temperature needs to be reduced, and the steps S110-S140 are repeated until the actual expansion value is within the preset expansion interval.

[0070] It should be understood that the minimum value of the preset expansion interval can be 105% of the target expansion value, and the maximum value of the preset expansion interval can be 110% of the target expansion value.

[0071] In an example embodiment of the present application, if the actual expansion value is within the preset expansion interval, before the stator is installed in the stator hole after deformation, the assembly method of the stator and the hybrid case body further comprises:

[0072] Step 1: Obtain the offset of the center of the deformation reference curve compared with the preset center.

[0073] Step 2: Install the stator in the stator hole after deformation based on the offset.

[0074] In summary, since the stator and the hybrid box shell assembly method determines the actual expansion value of the deformation reference curve in the circumferential direction of the stator hole by aligning the center of the deformation reference curve with the center of the preset circle curve, and then obtaining the actual expansion value of the deformation reference curve compared with the preset circle curve, compared with directly obtaining the actual expansion value of the deformation reference curve, the influence of the irregular thermal deformation of the hybrid box shell during multi-hole heating on the calculation of the actual expansion value caused by the offset of the center of the stator hole can be accurately excluded, and the actual expansion value of the stator hole can be more accurately determined. Finally, only when the actual expansion value is within the preset expansion value interval, the center is determined again, and the stator is installed in the deformed stator hole, thereby effectively reducing the occurrence of the situation that the diameter of the stator hole after thermal deformation is too small (insufficient expansion) or the shape is irregular (such as ovalization, uneven expansion), and the required fitting state (i.e. diameter and shape requirements) of the stator installation is not met, and finally the phenomenon of stator installation is significantly reduced.

[0075] Figure 11 A structure diagram of a stator and hybrid box shell assembly device 300 provided by an embodiment of the application is shown. As shown in the embodiment, a stator and hybrid box shell assembly device 300 is also provided, which is used to perform the stator and hybrid box shell assembly method in the above embodiment. Figure 11 The stator and hybrid box shell assembly device 300 is also provided in the embodiment, which is used to perform the stator and hybrid box shell assembly method in the above embodiment.

[0076] Further, the stator and hybrid box shell assembly device 300 includes a heating module 310, which is used to heat the hybrid box shell based on a preset temperature value.

[0077] Further, the stator and hybrid box shell assembly device 300 also includes a determination module 320, which is used to determine a deformation reference curve based on the stator hole of the hybrid box shell if the hybrid box shell is heated to a preset temperature value.

[0078] Further, the stator and hybrid box shell assembly device 300 also includes an acquisition module 330, which aligns the center of the deformation reference curve with the center of the preset circle curve, and acquires the actual expansion value of the deformation reference curve compared with the preset circle curve.

[0079] Further, the stator and hybrid box shell assembly device 300 also includes an installation module 340, which is used to install the stator in the deformed stator hole if the actual expansion value is within the preset expansion value interval.

[0080] The stator and hybrid box shell assembling device 300 provided by the above embodiment and the stator and hybrid box shell assembling method provided by the above embodiment belong to the same concept, wherein the specific manner in which each module and unit performs the operation has been described in detail in the method embodiment, and will not be described here.

[0081] Figure 12 The structural schematic diagram of the embodiment of the electronic device of the present application is shown, which shows the structural schematic diagram of the computer system of the electronic device suitable for realizing the embodiment of the present application, and the specific implementation of the electronic device is not limited in the specific embodiment of the present application.

[0082] Please refer to Figure 12 As shown in the figure, the electronic device comprises a controller, a memory for storing one or more programs, when the one or more programs are executed by the controller, to execute the above-mentioned stator and hybrid box shell assembling method.

[0083] Please continue to refer to Figure 12 As shown in the figure, the computer system 500 of the electronic device comprises a central processing unit (CPU) 501, which can perform various appropriate actions and processes according to the programs stored in the read-only memory (ROM) 502 or the programs loaded from the storage part 508 into the random access memory (RAM) 503, such as executing the method in the above-mentioned embodiment. In the RAM 503, various programs and data required for system operation are also stored. The CPU 501, the ROM 502 and the RAM 503 are connected to each other through the bus 504. The input / output (I / O) interface 505 is also connected to the bus 504.

[0084] The following components are connected to the I / O interface 505: the input part 506 comprising a keyboard, a mouse, etc.; the output part 507 comprising a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; the storage part 508 comprising a hard disk, etc.; and the communication part 509 comprising a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication part 509 performs communication processing via a network such as the Internet. The drive 510 is also connected to the I / O interface 505 as needed. The removable medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is installed on the drive 510 as needed, so that the computer program read therefrom is installed in the storage part 508 as needed.

[0085] In particular, according to embodiments of the present application, the processes described above with reference to the flowcharts can be implemented as a computer software program. For example, embodiments of the present application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing computer programs for executing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network by the communication section 509, and / or installed from the detachable medium 511. When the computer program is executed by the central processing unit (CPU) 501, various functions defined in the system of the present application are executed.

[0086] Another aspect of the present application also provides a computer-readable storage medium having stored thereon a computer program, which, when executed by a processor, implements the method of assembling the stator and the hybrid box shell as above. The computer-readable storage medium can be included in the electronic device described in the above embodiments, or can exist separately without being assembled into the electronic device.

[0087] Another aspect of the present application also provides a computer program product or computer program comprising at least one executable instruction, which, when executed by the stator and hybrid box shell assembling device 300 / electronic device, causes the stator and hybrid box shell assembling device 300 / electronic device to perform the method of assembling the stator and the hybrid box shell as above.

[0088] The computer readable medium in the embodiments of the present application can be a computer readable signal medium or a computer readable storage medium or any combination thereof. The computer readable storage medium may, for example, be an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any suitable combination thereof. More specific examples of the computer readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this application, the computer readable storage medium can be any tangible medium that contains or stores a program used by or in connection with an instruction execution system, apparatus or device. In this application, the computer readable signal medium can include a computer readable computer program product that transmits a program used by or in connection with an instruction execution system, apparatus or device. The computer readable medium includes a computer readable program product that can be transmitted using any suitable medium, including but not limited to wireless, wired, or the like, or any suitable combination thereof.

[0089] The flowcharts and block diagrams in the drawings illustrate the possible architectures, functionality, and operations of systems, methods, and computer program products according to various embodiments of the present application. Each block in the flowcharts or block diagrams can represent a module, a segment, or a portion of code that comprises one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions noted in the blocks can occur out of the order noted in the figures. For example, two blocks noted in succession can in fact be executed substantially concurrently or in the reverse order, depending on the functionality involved. It will also be noted that each block in the flowcharts or block diagrams and combinations of blocks in the flowcharts or block diagrams can be implemented by special purpose hardware-based systems that perform the specified functions or operations, or combinations of special purpose hardware and computer instructions.

[0090] The units described in the embodiments of the present application can be implemented by software, or by hardware, or by a combination of software and hardware. The units described can also be located in a single processor. In some cases, the names of the units do not limit the units themselves.

[0091] According to an aspect of the embodiments of the present application, a computer system is also provided, which includes a central processing unit (CPU) that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) or a program loaded from a storage section into a random access memory (RAM), such as performing the method in the above embodiments. In the RAM, various programs and data required for system operation are also stored. The CPU, the ROM, and the RAM are connected to each other through a bus. An input / output (I / O) interface is also connected to the bus.

[0092] Connected to the I / O interface are an input section including a keyboard, a mouse, etc.; an output section including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section including a hard disk, etc.; and a communication section including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section performs communication processing via a network such as the Internet. A drive is also connected to the I / O interface as necessary. A removable recording medium, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is attached to the drive as necessary, so that a computer program read therefrom is installed into the storage section as necessary.

[0093] The above merely describes preferred exemplary embodiments of the present application, and is not intended to limit the embodiments of the present application. Based on the main concept and spirit of the present application, a person of ordinary skill in the art can easily make corresponding modifications or variations, and the scope of protection of the present application should be subject to the scope of protection as claimed by the claims.

Claims

1. A method for assembling a stator and a hybrid housing, characterized in that, The method includes: The hybrid housing is heated based on a preset temperature value; If the hybrid housing is heated to a preset temperature value, a deformation reference curve is determined based on the stator hole of the hybrid housing; The center of the deformation reference curve is aligned with the center of the preset circular curve, and the actual expansion value of the deformation reference curve relative to the preset circular curve is obtained. If the actual expansion value is within the preset expansion range, then the stator is installed into the deformed stator hole.

2. The method as described in claim 1, characterized in that, The method for aligning the center of the deformation reference curve with the center of a preset circular curve includes: The deformation reference curve is decomposed into multiple higher-order curves about the deformation of the stator hole along its circumference based on Fourier transform, wherein the higher-order curves are closed curves. Multiple higher-order curves are superimposed based on the center of the preset circular curve, so that the center of the deformation reference curve coincides with the center of the preset circular curve.

3. The method as described in claim 2, characterized in that, The method for obtaining the actual expansion value of the deformation reference curve relative to the preset circular curve includes: Obtain the minimum expansion value of the deformation reference curve relative to the preset circular curve and the target expansion value of the stator hole, wherein the expansion value of the deformation reference curve when it is convex relative to the preset circular curve is positive, and the expansion value of the deformation reference curve when it is concave relative to the preset circular curve is negative. The sum of the minimum expansion value and the target expansion value is determined as the actual expansion value.

4. The method as described in claim 3, characterized in that, The method for obtaining the minimum expansion value of the deformation reference curve relative to the preset circular curve includes: The deformation reference curve is divided into multiple target curve groups, and each target curve group includes a first curve segment and a second curve segment that are respectively set at both ends of the preset circular curve diameter. Based on the one-to-one correspondence of the multiple target curve groups, multiple candidate values ​​for minimum expansion amount are determined. The candidate value for minimum expansion amount is the sum of the expansion amount value of the first curve segment and the expansion amount value of the second curve segment in each of the target curve groups. The minimum expansion value is determined based on the plurality of candidate expansion values.

5. The method as described in claim 1, characterized in that, The method further includes: If the actual expansion value is within the preset expansion range, then the offset of the center of the deformation reference curve relative to the preset center is obtained. Based on the offset, the stator is installed into the deformed stator hole.

6. The method as described in claim 1, characterized in that, The method further includes: If the actual expansion value is outside the preset expansion range, the preset temperature value is adjusted accordingly, and the actual expansion value of the deformation reference curve relative to the preset circular curve is re-determined until the actual expansion value is within the preset expansion range.

7. The method as described in claim 1, characterized in that, The method for determining the deformation reference curve based on the stator bore of the hybrid housing includes the following steps: Obtain the positioning information of the hybrid housing on its production line; A finite element analysis model is established based on the positioning information and the preset temperature value. The finite element analysis model includes a hybrid housing model and a model of the tooling corresponding to the placement of the hybrid housing. The deformation reference curve corresponding to the stator hole is determined based on the finite element analysis model.

8. An assembly device for a stator and a hybrid housing, characterized in that, The device includes: A heating module is used to heat the hybrid tank housing based on a preset temperature value; The determination module is used to determine a deformation reference curve based on the stator hole of the hybrid housing if the hybrid housing is heated to a preset temperature value. The acquisition module aligns the center of the deformation reference curve with the center of the preset circular curve and acquires the actual expansion value of the deformation reference curve relative to the preset circular curve. The mounting module is used to install the stator into the deformed stator hole if the actual expansion value is within a preset expansion range.

9. An electronic device, characterized in that, include: Controller; A memory for storing one or more programs, which, when executed by a controller, cause the controller to implement the assembly method of the stator and hybrid housing as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, which includes at least one executable instruction that, when executed on the stator and hybrid housing assembly device / electronic device, causes the stator and hybrid housing assembly device / electronic device to perform the stator and hybrid housing assembly method as described in any one of claims 1 to 7.

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