Air duct type air conditioner parameterization design method and air duct type air conditioner

Abstract

The invention provides a duct type air conditioner parameterization design method and a duct type air conditioner. The ducted air conditioner parameterization design method comprises the steps that global parameters of a ducted air conditioner are determined, and a corresponding parameter relational expression is established; an origin coordinate system is established on three-dimensional modeling software, and on the basis of the origin coordinate system, an initial 3D model of the ducted air conditioner is generated in the three-dimensional modeling software according to the initial parameter values of the global parameters and the parameter relational expression; and inputting a target parameter value of a global parameter into three-dimensional modeling software, so that the three-dimensional modeling software automatically generates a target 3D model of the duct type air conditioner according to the parameter relational expression. According to the ducted air conditioner parameterization design method and the ducted air conditioner, the design quality and efficiency are improved, and the product development period is shortened. Compared with a traditional design method, parameterized design can better cope with changes of product sizes and specifications, rapid iteration is achieved, differences between designers can be reduced, and design normalization is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner parameter design, and particularly to a parameterized design method for an air duct machine and an air duct machine. Background Art

[0002] In the related art, with the development and popularization of digitization, more and more product designs rely on software such as 3D modeling to complete. 3D modeling is a large-scale parametric design software with characteristics such as TOP-DOWN, parametric, feature-based, and fully correlated. There are many types of air duct machines for air conditioners and their sizes vary. Using 3D modeling software to establish 3D models greatly improves the design efficiency. However, some designers do not fully utilize the parametric and TOP-DOWN functions of 3D modeling, and the design of the air duct machine still does not get rid of the one-by-one design method. And in many cases, air conditioner products need to quickly iterate and derive models based on the original products. If the traditional design method is adopted, each system is designed independently, which may lead to serious interference of each component in the later total assembly. Summary of the Invention

[0003] The present invention provides a parameterized design method for an air duct machine and an air duct machine to solve the defects existing in the prior art and achieve the following technical effects: improving the design quality and efficiency and shortening the product development cycle. Compared with the traditional design method, parametric design can better cope with the changes in product size and specifications and achieve rapid iteration. In addition, parametric design helps to reduce the differences between designers and improve the standardization of design.

[0004] The parameterized design method for an air duct machine according to the first aspect embodiment of the present invention includes:

[0005] Determine the global parameters of the air duct machine and establish corresponding parameter relational expressions or parameter calculation programs;

[0006] Establish an origin coordinate system in the 3D modeling software, and based on the origin coordinate system, generate the initial 3D model of the air duct machine in the 3D modeling software according to the parameter relational expression or parameter calculation program and the initial parameter values of the global parameters.

[0007] Input the target parameter values of the global parameters into the 3D modeling software so that the 3D modeling software automatically generates the target 3D model of the air duct machine according to the parameter relational expression.

[0008] According to an embodiment of the present invention, the step of determining the global parameters of the air duct machine and establishing corresponding parameter relational expressions or parameter calculation programs specifically includes:

[0009] Determine that the global parameters respectively include the overall machine length ZL, the total number of fans N, and the fan specification FH;

[0010] Taking the total number N of fans and the number of specifications of the fan specification FH as inputs and taking the overall machine length ZL as the output, a first parameter relationship is established, and a corresponding first relational expression or first program is written in three-dimensional modeling software according to the first parameter relationship.

[0011] According to an embodiment of the present invention, in the step of establishing the first parameter relationship based on the overall machine length ZL, the total number N of fans, and the fan specification FH, the first parameter relationship includes:

[0012] When the total number N of fans is 2 and there is only one type of fan specification FH, the overall machine length is the first length;

[0013] When the total number N of fans is 3 and there are two types of fan specifications FH, the overall machine length is the second length;

[0014] When the total number N of fans is 3 and there is only one type of fan specification FH, the overall machine length is the third length;

[0015] When the total number N of fans is 4, the overall machine length is the fourth length;

[0016] Wherein, the first length is less than the second length, the second length is less than the third length, and the third length is less than the fourth length.

[0017] According to an embodiment of the present invention, the step of determining the global parameters of the air duct machine and establishing the corresponding parameter relational expression or parameter calculation program specifically further includes:

[0018] Taking the overall machine length ZL as the input and taking the total number N of fans and the specification type of the fan specification FH as the output, a second parameter relationship is established, and a corresponding second relational expression or second program is written in three-dimensional modeling software according to the second parameter relationship.

[0019] According to an embodiment of the present invention, in the step of establishing the second parameter relationship taking the overall machine length ZL as the input and taking the total number N of fans and the specification type of the fan specification FH as the output, the second parameter relationship includes:

[0020] When the overall machine length is the first length, the total number N of fans is 2 and the fan specifications of both fans are the first specification;

[0021] When the overall machine length is the second length, the total number N of fans is 3 and the fan specification of one of the fans is the first specification, and the fan specifications of the other two fans are the second specification;

[0022] When the overall length of the unit is the third length, the total number of fans N = 3 and the fan specifications of the three fans are all the second specification;

[0023] When the overall length of the unit is the fourth length, the total number of fans N = 4 and the fan specifications of the four fans are all the second specification;

[0024] Wherein, the first length is less than the second length, the second length is less than the third length, the third length is less than the fourth length; and the size of the second specification is greater than the size of the first specification.

[0025] According to an embodiment of the present invention, the step of determining the global parameters of the air duct machine and establishing the corresponding parameter relationship or parameter calculation program specifically further includes:

[0026] Establish a third parameter relationship based on the parameters of the internal parts of the air duct machine and the global parameters, and write the corresponding third relationship or third program into the 3D modeling software according to the third parameter relationship.

[0027] According to an embodiment of the present invention, the parameters of the internal parts include the number of fixing holes between the partition board and the chassis of the air duct machine. Then, in the step of establishing the third parameter relationship based on the parameters of the internal parts of the air duct machine and the global parameters, the third parameter relationship includes:

[0028] When the overall length of the unit is the first length, the number of fixing holes is the first hole quantity;

[0029] When the overall length of the unit is the second length, the number of fixing holes is the second hole quantity;

[0030] When the overall length of the unit is the third length, the number of fixing holes is the third hole quantity;

[0031] When the overall length of the unit is the fourth length, the number of fixing holes is the fourth hole quantity;

[0032] Wherein, the first length is less than the second length, the second length is less than the third length, the third length is less than the fourth length; and the first hole quantity is less than the second hole quantity, the second hole quantity is equal to the third hole quantity, and the third hole quantity is less than the fourth hole quantity.

[0033] According to an embodiment of the present invention, the step of generating the initial 3D model of the air duct machine in the 3D modeling software based on the parameter relationship or parameter calculation program and the initial parameter values of the global parameters on the basis of the origin coordinate system specifically includes:

[0034] Based on the initial parameter values, the first relational expression, and the second relational expression, or based on the initial parameter values, the first program, and the second program, a skeleton model of the air duct machine is established on the basis of the origin coordinate system;

[0035] Based on the skeleton model, according to the initial parameter values and the third relational expression, or based on the initial parameter values and the third program, an internal part model of the air duct machine is established;

[0036] Adjust and integrate the skeleton model and the internal part model to generate the initial 3D model.

[0037] According to an embodiment of the present invention, after the step of establishing the internal part model of the air duct machine based on the skeleton model according to the initial parameter values and the third relational expression, the following is further included:

[0038] Optimize the skeleton model and the internal part model according to the tolerance and fit requirements during the assembly process of the air duct machine.

[0039] For the air duct machine according to the embodiment of the second aspect of the present invention, the air duct machine performs parameter design according to the air duct machine parametric design method described in the embodiment of the first aspect of the present invention.

[0040] The present invention proposes an air duct machine parametric design method, which studies and designs the air duct machine product of the air conditioner based on the concept of parameterization and TOP-DOWN using 3D modeling software. By inputting several main parameters, the derivation of the air duct machine of the air conditioner on multiple platforms can be realized, greatly improving the design quality and design efficiency, and shortening the product development cycle.

[0041] In addition, the advantages of this method are to improve the design quality and efficiency and shorten the product development cycle. Compared with the traditional design method, parametric design can better cope with the changes in product size and specifications and achieve rapid iteration. In addition, parametric design helps to reduce the differences between designers and improve the standardization of design. Description of the Drawings

[0042] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0043] Figure 1 It is one of the flow diagrams of the air duct machine parametric design method provided by the present invention;

[0044] Figure 2It is the second flow schematic diagram of the air duct machine parametric design method provided by the present invention. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments in the present invention belong to the scope of protection of the present invention.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0047] As Figure 1 shown, the air duct machine parametric design method according to the first aspect embodiment of the present invention includes:

[0048] Step S1, determining the global parameters of the air duct machine and establishing corresponding parameter relational expressions or parameter calculation programs;

[0049] Step S2, establishing an origin coordinate system in the 3D modeling software, and on the basis of the origin coordinate system, generating an initial 3D model of the air duct machine in the 3D modeling software according to the parameter relational expressions or parameter calculation programs, and the initial parameter values of the global parameters;

[0050] Step S3, inputting the target parameter values of the global parameters in the 3D modeling software, so that the Creo software automatically generates the target 3D model of the air duct machine according to the parameter relational expressions.

[0051] First of all, it should be explained that the above 3D modeling software can be software such as Creo and SolidWorks. The present invention will take the air duct machine parametric design method based on Creo software as an example for illustration, without loss of generality.

[0052] The parametric design method of the air duct machine of the present invention is a method for parametric TOP-DOWN design of the air duct machine based on Creo software. Among them, the parametric TOP-DOWN design refers to a process and method from overall design to local design driven by parameters, and TOP-DOWN is also a prerequisite for the transmission of parameter relationships. It first determines the overall design idea, determines global parameters, designs a skeleton model, and then designs components to complete a complete design. A relationship (also called a parameter relationship) is a design connection between dimensions (or other parameters) defined by the designer and is a way to capture design intent. Use it to drive the model and quickly generate a new model by inputting global parameters.

[0053] According to the parametric design method of the air duct machine in the embodiment of the present invention, its specific working process is as follows:

[0054] First, determine the global main parameters: Set the six global main parameters of the air duct machine as ZL (overall machine length), NL (number of left fans), NR (number of right fans), N (total number of fans), FH1 (fan specification 1), and FH2 (fan specification 2).

[0055] Second, establish the parameter relationship of dimensions: According to the length dimension of the air duct machine and the number and specifications of the fans, establish corresponding parameter relationships, such as the relationship between the overall machine length ZL and the number and specifications of the fans.

[0056] Third, establish the parameter relationship of assembly components: According to the length specification of the air duct machine, select different types of assembly components such as fans, and use the program function of Creo to control the assembly of the fans.

[0057] Fourth, establish the parameter relationship of features: Analyze the relationship between the internal parts of the air duct machine (such as the fixing holes of the partition and the chassis) and the model parameters, and manage them in the relationship manager or program.

[0058] Fifth, the implementation plan of the air duct machine and parametric TOP-DOWN design: Determine the origin coordinate system, with the center of the motor shaft as the origin. Then design according to the parametric TOP-DOWN design process.

[0059] Sixth, according to the input parameter values, drive the dimensions, features, and assembly components of the product 3D skeleton model to realize the rapid generation of the air duct machine on different platforms.

[0060] In summary, through the above steps, this method can implement the parametric design method of the air duct machine. This method helps to improve the design efficiency, shorten the product development cycle, and reduce the possibility of non-standard design. In the actual operation process, the designer needs to adjust the parameter relationship and design process according to the specific requirements and characteristics of the air duct machine.

[0061] In the related art, with the development and popularization of digitalization, more and more product designs rely on software such as Creo to complete. Creo is a large-scale parametric design software with characteristics such as TOP-DOWN, parametric, feature-based, and fully correlated. There are various types and variable sizes of air-conditioning duct machines. Using Creo software to establish a 3D model greatly improves the design efficiency. However, some designers do not fully utilize the parametric and TOP-DOWN functions of Creo, and the design of the duct machine still does not get rid of the one-by-one design method. And in many cases, air-conditioning products need to quickly iterate and derive models based on the original products. If the traditional design method is adopted, each system is designed independently, which may lead to serious interference of each component in the later total assembly.

[0062] Therefore, to solve the technical defects existing in the above-mentioned related art, the present invention proposes a parametric design method for a duct machine. This method studies and designs the air-conditioning duct machine product based on the concepts of parametric and TOP-DOWN using Creo software. By inputting several main parameters, the derivation of the air-conditioning duct machine on multiple platforms can be realized, greatly improving the design quality and design efficiency and shortening the product development cycle.

[0063] In addition, the advantages of this method are to improve the design quality and efficiency and shorten the product development cycle. Compared with the traditional design method, parametric design can better cope with the changes in product size and specifications and achieve rapid iteration. In addition, parametric design helps to reduce the differences between designers and improve the standardization of design.

[0064] As Figure 2 shown, according to some embodiments of the present invention, the steps of determining the global parameters of the duct machine and establishing the corresponding parameter relationship or parameter calculation program specifically include:

[0065] Determining the global parameters respectively include the overall machine length ZL, the total number of fans N, and the fan specification FH;

[0066] Taking the number of specifications of the total number of fans N and the fan specification FH as the input and the overall machine length ZL as the output to establish a first parameter relationship, and writing the corresponding first relationship or first program in the Creo software according to the first parameter relationship.

[0067] It can be understood that the product external dimensions of an air-conditioning duct machine are mainly composed of length, height, and width. Taking a low-static-pressure duct machine platform as an example, there are four length dimensions: 700 / 1150 / 1300 / 1600 mm, the height dimension is 180 mm, and the width dimension is 450 mm. The dimensions in these three directions are mainly determined by the different selected fan specifications and quantities. If the traditional design method is adopted, each model needs to be designed once, while by using the parametric TOP-DOWN design, only the relationship between the length and the fan specification needs to be determined, and then the size change of the model can be driven by parameters to quickly complete the design. Therefore, the global main parameters of the duct machine are determined as the overall machine length ZL, the total number of fans N, and the fan specification FH. Among them, the total number of fans N includes the number of left-side fans NL and the number of right-side fans NR. The fan specification FH can include one or two specifications. When the fan specification includes two, the fan specification FH includes fan specification 1 FH1 and fan specification 2 FH2.

[0068] Further, in the step of establishing the first parameter relationship according to the overall machine length ZL, the total number of fans N, and the fan specification FH, the first parameter relationship includes:

[0069] When the total number of fans N = 2 and there is only one fan specification, the overall machine length is the first length;

[0070] When the total number of fans N = 3 and there are two fan specifications, the overall machine length is the second length;

[0071] When the total number of fans N = 3 and there is only one fan specification, the overall machine length is the third length;

[0072] When the total number of fans N = 4, the overall machine length is the fourth length.

[0073] Among them, the first length is less than the second length, the second length is less than the third length, and the third length is less than the fourth length.

[0074] For example, when the total number of fans N = 2 and there is only one fan specification, the overall machine length ZL = 700 mm; when the total number of fans N = 3 and there are two fan specifications, the overall machine length ZL = 1150 mm; when the total number of fans N = 3 and there is only one fan specification, the overall machine length ZL = 1300 mm; when the total number of fans N = 4, the overall machine length ZL = 1600 mm.

[0075] According to some embodiments of the present invention, the step of determining the global parameters of the duct machine and establishing the corresponding parameter relationship formula or parameter calculation program specifically further includes:

[0076] Establish a second parameter relationship with the overall machine length ZL as the input and the total number of fans N and the specification type of the fan specification FH as the output, and write the corresponding second relational expression or second program in the Creo software according to the second parameter relationship.

[0077] It can be understood that when the length specifications of the air duct machine are different, different types of fans need to be selected and matched. Here, the program function of Creo is used to control the assembly of the fans.

[0078] Further, in the step of establishing the second parameter relationship with the overall machine length ZL as the input and the total number of fans N and the specification type of the fan specification FH as the output, the second parameter relationship includes:

[0079] When the overall machine length is the first length, the total number of fans N = 2 and the fan specifications of both fans are the first specification;

[0080] When the overall machine length is the second length, the total number of fans N = 3 and the fan specification of one of the fans is the first specification, and the fan specifications of the other two fans are the second specification;

[0081] When the overall machine length is the third length, the total number of fans N = 3 and the fan specifications of all three fans are the second specification;

[0082] When the overall machine length is the fourth length, the total number of fans N = 4 and the fan specifications of all four fans are the second specification.

[0083] Among them, the first length is less than the second length, the second length is less than the third length, the third length is less than the fourth length; and the size of the second specification is greater than the size of the first specification.

[0084] For example, when the overall machine length is 700 mm, two fans with a specification of 152 mm are selected and matched; when the overall machine length is 1150 mm, 1 fan with a specification of 152 mm and 2 fans with a specification of 202 mm are selected and matched; when the overall machine length is 1300 mm, 3 fans with a specification of 202 mm are selected and matched; when the overall machine length is 1600 mm, 4 fans with a specification of 202 mm are selected and matched.

[0085] In the subsequent steps, write the corresponding second relational expression or second program in the Creo software according to the second parameter relationship. In this way, each possible fan group is assembled in the general assembly, and the program relationship is used to control whether the fan group is in a displayed or hidden state. For example, in the general assembly of the motor fan group of the air duct machine with a specification of 1600 mm, 2 fan components with a specification of 152 mm are hidden in the general assembly.

[0086] According to some embodiments of the present invention, the step of determining the global parameters of the air duct machine and establishing the corresponding parameter relational expression or parameter calculation program specifically further includes:

[0087] Establish a third parameter relationship based on the parameters of the internal parts of the air duct machine and the global parameters, and write the corresponding third relational expression or third program in the Creo software according to the third parameter relationship.

[0088] Further, the parameters of the internal parts include the number of fixing holes between the partition plate and the chassis of the air duct machine. Then, in the step of establishing the third parameter relationship based on the parameters of the internal parts of the air duct machine and the global parameters, the third parameter relationship includes:

[0089] When the overall length of the whole machine is the first length, the number of fixing holes is the first hole quantity;

[0090] When the overall length of the whole machine is the second length, the number of fixing holes is the second hole quantity;

[0091] When the overall length of the whole machine is the third length, the number of fixing holes is the third hole quantity;

[0092] When the overall length of the whole machine is the fourth length, the number of fixing holes is the fourth hole quantity.

[0093] Wherein, the first length is less than the second length, the second length is less than the third length, and the third length is less than the fourth length; and the first hole quantity is less than the second hole quantity, the second hole quantity is equal to the third hole quantity, and the third hole quantity is less than the fourth hole quantity.

[0094] For example, when the overall length of the whole machine is 700 mm, 3 fixing hole positions are required; when the overall length of the whole machine is 1150 mm, 5 fixing hole positions are required and the spacing is different from other lengths; when the overall length of the whole machine is 1300 mm, 5 fixing hole positions are required and the spacing is different from other lengths; when the overall length of the whole machine is 1600 mm, 6 fixing hole positions are required and the spacing is different from other lengths.

[0095] According to some embodiments of the present invention, on the basis of the origin coordinate system, the steps of generating the initial 3D model of the air duct machine in the Creo software according to the parameter relational expression or parameter calculation program, and the initial parameter values of the global parameters specifically include:

[0096] Based on the initial parameter values, the first relational expression and the second relational expression, establish the skeleton model of the air duct machine on the basis of the origin coordinate system;

[0097] On the basis of the skeleton model, establish the internal part model of the air duct machine according to the initial parameter values and the third relational expression;

[0098] Adjust and integrate the skeleton model and the internal part model to generate the initial 3D model.

[0099] Further, on the basis of the skeleton model, after the step of establishing the internal part model of the air duct machine according to the initial parameter values and the third relational expression, the following steps are further included:

[0100] Optimize the skeleton model and the internal part model according to the tolerance and fit requirements during the assembly process of the air duct machine.

[0101] In summary, when performing 3D design of the air duct machine, it is first necessary to determine the origin coordinate system. Different from the traditional design scheme that uses the geometric center as the origin coordinate system, this scheme uses the center of the motor shaft as the origin, with the right direction of the axis as the X direction, the vertical upward direction from the ground as the Z direction, and the parallel to the ground as the Y direction. The motor is a purchased part and its structure basically remains unchanged. Using it as the origin is more stable and convenient for arranging the relative positions of the fan group and the evaporator group. The fan group and the evaporator group are precisely the main factors affecting the overall dimensions of the machine, and it is more convenient to control the changes in the 3D drawings through parameters.

[0102] The following gives a specific embodiment of a parametric design method for an air duct machine with reference to the accompanying drawings.

[0103] 1. Determine the following global main parameters: ZL (overall length of the machine): the overall length of the air duct machine; NL (number of left fans): the number of left fans of the air duct machine; NR (number of right fans): the number of right fans of the air duct machine; N (total number of fans): the total number of fans in the air duct machine, that is, NL + NR; FH1 (fan specification 1): the specification of the left fan; FH2 (fan specification 2): the specification of the right fan.

[0104] 2. Establish the parameter relationships of the dimensions: First, establish the corresponding parameter relationships according to the length dimension, the number and specifications of the fans of the air duct machine. For example, determine the relationship between the overall length ZL of the machine and the number and specifications of the fans, so as to adjust the length of the air duct machine by changing these parameters. Second, use the relationship function of Creo software to create mathematical expressions between the parameters to achieve automatic calculation and adjustment of the parameters.

[0105] 3. Establish the parameter relationships of the features: First, analyze the relationships between the internal parts of the air duct machine (such as the fixing holes of the partition and the chassis) and the model parameters. Second, create these relationships in the relationship manager of Creo, or use a program to write scripts to manage these relationships. For example, according to the overall length ZL of the machine, determine the number, positions and spacings of the fixing holes at the center of the partition chassis.

[0106] 4. Establish the parameter relationships of the assembled components: First, select different types of assembled components such as fans according to the length specifications of the air duct machine. Second, use the program function of Creo to control the assembly of the fans. For example, use the IF-THEN conditional statement to determine which fan assembly to add according to the overall length ZL of the machine.

[0107] 5. Implementation plan for air duct machines and parametric TOP - DOWN design: First, determine the origin coordinate system: Use the center of the motor shaft as the origin, with the right direction of the axis as the X - direction, the vertical upward direction from the ground as the Z - direction, and the direction parallel to the ground as the Y - direction. Second, conduct the design according to the parametric TOP - DOWN design process: a. Design the skeleton model and determine the global parameters; b. Design components such as fans and partitions; c. Establish the parametric relationships of dimensions, features, and assembly components; d. Drive the generation of the product 3D model by inputting parameter values.

[0108] 6. Drive the dimensions, features, and assembly components of the product 3D skeleton model according to the input parameter values: First, in the Creo software, input parameter values such as the overall machine length, the number and specifications of fans, etc. Second, the software automatically calculates and adjusts the dimensions, features, and assembly components of the model according to the parametric relationships to generate an air duct machine 3D model that meets the requirements.

[0109] In summary, by following these detailed operation steps, designers can implement the parametric design method for air duct machines, thereby improving the design efficiency, shortening the product development cycle, and reducing the possibility of non - standard designs. During the actual operation process, designers need to adjust the parametric relationships and design processes according to the specific requirements and characteristics of the air duct machines.

[0110] For the air duct machine according to the second - aspect embodiment of the present invention, the air duct machine conducts parametric design according to the air duct machine parametric design method described in the first - aspect embodiment of the present invention.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A parametric design method for an air duct machine, characterized in that, Including: Determine the global parameters of the air duct machine and establish corresponding parameter relationships or parameter calculation programs; Establish an origin coordinate system in 3D modeling software, and based on the origin coordinate system, generate the initial 3D model of the air duct machine in the 3D modeling software according to the parameter relationship or parameter calculation procedure, and the initial parameter values of the global parameters; Input the target parameter values of the global parameters in the 3D modeling software, so that the 3D modeling software automatically generates the target 3D model of the air duct machine according to the parameter relationship.

2. The parametric design method of the air duct machine according to claim 1, wherein The step of determining the global parameters of the air duct machine and establishing corresponding parameter relationships or parameter calculation programs specifically includes: Determine that the global parameters respectively include the overall machine length ZL, the total number of fans N, and the fan specification FH; Establish a first parameter relationship with the number of specifications of the total number of fans N and the fan specification FH as the input and the overall machine length ZL as the output, and write the corresponding first relationship or first program in the 3D modeling software according to the first parameter relationship.

3. The parametric design method of the air duct machine according to claim 2, wherein In the step of establishing the first parameter relationship according to the overall machine length ZL, the total number of fans N, and the fan specification FH, the first parameter relationship includes: When the total number of fans N = 2 and there is only one type of fan specification FH, the overall machine length is the first length; When the total number of fans N = 3 and there are two types of fan specifications FH, the overall machine length is the second length; When the total number of fans N = 3 and there is only one type of fan specification FH, the overall machine length is the third length; When the total number of fans N = 4, the overall machine length is the fourth length; Wherein, the first length is less than the second length, the second length is less than the third length, and the third length is less than the fourth length.

4. The parametric design method of the air duct machine according to claim 2, wherein The step of determining the global parameters of the air duct machine and establishing corresponding parameter relationships or parameter calculation programs specifically further includes: Establish a second parameter relationship with the overall machine length ZL as the input and the number of fan specifications of the total number of fans N and the fan specification FH as the output, and write the corresponding second relationship or second program in the 3D modeling software according to the second parameter relationship.

5. The parametric design method of the air duct machine according to claim 4, wherein In the step of establishing the second parameter relationship with the overall machine length ZL as the input and the number of fan specifications of the total number of fans N and the fan specification FH as the output, the second parameter relationship includes: When the overall machine length is the first length, the total number of fans N = 2 and the fan specifications of both fans are the first specification; When the overall machine length is the second length, the total number of fans N = 3 and the fan specification of one of the fans is the first specification, and the fan specifications of the other two fans are the second specification; When the overall machine length is the third length, the total number of fans N = 3 and the fan specifications of all three fans are the second specification; When the overall machine length is the fourth length, the total number of fans N = 4 and the fan specifications of all four fans are the second specification; Among them, the first length is less than the second length, the second length is less than the third length, the third length is less than the fourth length; and the size of the second specification is greater than the size of the first specification.

6. The air duct machine parametric design method according to any one of claims 2 to 5, characterized in that, The step of determining the global parameters of the air duct machine and establishing the corresponding parameter relationship formula or parameter calculation program specifically further includes: Establish a third parameter relationship based on the parameters of the internal parts of the air duct machine and the global parameters, and write the corresponding third relationship formula or third program in the 3D modeling software according to the third parameter relationship.

7. The parametric design method of the air duct machine according to claim 6, characterized in that The parameters of the internal parts include the number of fixing holes between the partition board and the chassis of the air duct machine. Then, in the step of establishing the third parameter relationship based on the parameters of the internal parts of the air duct machine and the global parameters, the third parameter relationship includes: When the overall length of the machine is the first length, the number of fixing holes is the first hole quantity; When the overall length of the machine is the second length, the number of fixing holes is the second hole quantity; When the overall length of the machine is the third length, the number of fixing holes is the third hole quantity; When the overall length of the machine is the fourth length, the number of fixing holes is the fourth hole quantity; Among them, the first length is less than the second length, the second length is less than the third length, the third length is less than the fourth length; and the first hole quantity is less than the second hole quantity, the second hole quantity is equal to the third hole quantity, and the third hole quantity is less than the fourth hole quantity.

8. The parameterized design method of the air duct machine according to claim 6, characterized in that, The step of generating the initial 3D model of the air duct machine in the 3D modeling software based on the origin coordinate system, according to the parameter relationship formula or parameter calculation program, and the initial parameter values of the global parameters specifically includes: Based on the initial parameter values, the first relationship formula and the second relationship formula, or, based on the initial parameter values, the first program and the second program, establish the skeleton model of the air duct machine on the basis of the origin coordinate system; On the basis of the skeleton model, establish the internal part model of the air duct machine according to the initial parameter values and the third relationship formula, or, according to the initial parameter values and the third program; Adjust and integrate the skeleton model and the internal part model to generate the initial 3D model.

9. The parametric design method of the air duct machine according to claim 8, characterized in that, After the step of establishing the internal part model of the air duct machine on the basis of the skeleton model according to the initial parameter values and the third relationship formula, it further includes: Optimize the skeleton model and the internal part model according to the tolerance and fit requirements during the assembly process of the air duct machine.

10. An air duct machine, characterized in that, The air duct machine is parameter-designed according to the air duct machine parameterization design method described in any one of claims 1 to 9.

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