CN103036401A - Power supply controller flatness ensuring method based on modular design - Google Patents

Abstract

The invention relates to a power supply controller flatness ensuring method based on modular design. The power supply controller flatness ensuring method includes a first step of determining tolerance of mutually matched portions between original function modules, a second step of assembling, fastening and connecting the original function modules, and carrying out flatness processing to the bottom surfaces of the original function modules, a third step of determining the tolerance of mutually matched portions of replaced or expanded function modules, and a fourth step of setting the replaced or expanded function modules according to assembling order, and reassembling a power supply controller and enabling the power supply controller to meet the requirement of flatness. With regard to the replaced or expanded function modules, the power supply controller flatness ensuring method does not need to assemble the replaced or expanded function modules and the function modules of the original power supply controller to carry out the overall flatness processing again, so possibilities of size out-of-tolerance and pollution of the power supply controller are reduced. With regard to the function modules made of magnesium alloy which can not be conveniently and repeatedly processed, the flatness of the power supply controller after assembling can also be guaranteed, so the power supply controller flatness ensuring method further ensures that the installation stress of the power supply controller is even and radiating paths of the bottom surfaces of the power supply controller are reliable.

Description

A Planarity Guarantee Method for Power Supply Controller Based on Modular Design

technical field

The invention relates to a method for ensuring flatness of a power supply controller based on modular design, and is especially suitable for ensuring the flatness of a power supply controller requiring function expansion or rapid function replacement.

Background technique

Improving the power density of the power supply controller is the development trend of satellite power supplies today, and the modular design of the power supply controller is an effective breakthrough to increase the power density. Due to the modular design of the power controller has high structural rigidity, light weight, easy maintenance, and good scalability, it provides a strong guarantee for the development of product serialization. However, since each module of the replaced or extended power controller belongs to different batches of processed products from the original module, the flatness after reassembly will inevitably fail to meet the labeling requirements. How to ensure the flatness of the functional modules of the power controller after replacement or expansion still meets the requirements has become a problem that must be solved in the modular design of the power controller.

At present, in the design of the power controller, two kinds of materials, aluminum alloy and magnesium alloy, are usually used as the supporting structure. For power controllers with aluminum alloy support structures, adding or replacing modules often requires assembling and fastening them with the whole and then reprocessing the bottom surface of the power controller. This method may cause the overall height of the power controller to be out of tolerance. Modules with components may also damage the components; at the same time, due to the overall processing, the processing process may pollute the power controller, requiring comprehensive protection of the machine, which increases the difficulty of operation.

However, for power controllers using magnesium alloy support structures, surface treatment is required to prevent oxidation of the metal structure, so it is difficult to perform secondary processing on the assembled modules, and the added or replaced power controllers generally do not require flatness. Since the power controller is mainly installed and dissipated heat through the bottom surface, excessive flatness will inevitably cause uneven force on the mounting screws, increase the contact thermal resistance of the heat dissipation surface, and weaken the heat dissipation effect of the power controller.

To sum up, considering the maintainability, interchangeability and expansibility of modular power controllers, it is necessary to propose a method for ensuring the flatness of power controllers based on modular design.

Contents of the invention

The purpose of the present invention is to provide a method for ensuring the flatness of a power supply controller based on modular design, aiming at the problem that the flatness of the modularly designed power supply controller is out of tolerance after replacing and expanding functional modules, and it solves the problem of the size after the overall assembly The problem of out-of-tolerance and difficult operation also solves the problem of flatness control between functional modules made of different materials, which is beneficial to the selection of power controller material and the control of power controller weight.

In order to achieve the above object, the present invention provides a method for ensuring flatness of a power supply controller based on a modular design, comprising the following steps: Step 1, determining the tolerance of the matching parts between the original functional modules of the power supply controller; Step 2, Assemble and fasten the original functional modules of the power controller, and then process the flatness of the bottom surface of the assembled power controller; step 3, determine the tolerance of the matching parts of the replaced or expanded functional modules; step 4, put The replaced or expanded functional modules are arranged in accordance with the assembly sequence, and the various functional modules of the power controller are reassembled to meet the flatness requirements.

One side of each original functional module and each replaced or extended functional module of the power controller is provided with a boss, and the other side is provided with a groove, and the adjacent two functional modules are matched by the boss and the groove assembled.

The boss height and groove depth of each original functional module and each replaced or extended functional module of the power controller are less than 2mm.

Connecting holes are provided at the corners of each original functional module and each replaced or expanded functional module of the power controller.

In step 1, for each original functional module of the power controller, the depth of the matched and assembled groove is 0mm-0.1mm larger than the height of the boss.

In step 2, for each original functional module assembled according to the assembly sequence, use the connecting rod to pass through the connection hole at the corresponding position of each original functional module and fasten the connection.

In step 3, the groove depth of the replaced or extended functional module is 0.1mm to 0.2mm larger than that of the original functional module; the boss height of the replaced or extended functional module is 0.1 smaller than that of the original functional module mm ~ 0.2mm.

For the increase of the replacement or extension times of the functional module at the same position, the depth of the groove of the newly replaced or extended functional module increases by 0.1mm, and the height of the boss of the newly replaced or extended functional module decreases by 0.1mm every time it is replaced or extended .

In step 4, the following steps are specifically included: step 4.1, for the replaced or extended functional modules assembled according to the assembly sequence and the rest of the original functional modules, place them on the platform for flatness adjustment; step 4.2, meet the flatness requirements after adjustment The various functional modules are fastened and connected by connecting rods, and the relative positions between the functional modules are constantly adjusted during the fastening process, so that the final assembled power controller meets the flatness requirements.

The method for ensuring flatness of the power supply controller based on the modular design provided by the present invention does not need to be assembled with the functional modules of the original power supply controller for an overall flatness processing for the replaced or expanded functional modules, reducing the The possibility of out-of-tolerance and contamination of the power controller is eliminated. At the same time, for functional modules made of materials that are not easy to be processed repeatedly, such as magnesium alloy, the flatness after assembly can also be guaranteed by this method, thereby ensuring uniform force on the installation of the power controller and reliable heat dissipation on the bottom surface.

At present, the method of the present invention has been used to ensure the flatness of the power controller of the lunar probe during the assembly process, and the flatness of the product still meets the requirements and reaches the standard after various tests such as mechanics and heat.

Description of drawings

Fig. 1 is the structural representation of the power supply controller function module in the present invention;

Fig. 2 is the schematic diagram of connection between the functional modules of the power supply controller in the present invention;

Fig. 3 is a side view of Fig. 1;

Fig. 4 is a schematic diagram of assembling various functional modules of the power controller in the present invention.

Detailed ways

A preferred embodiment of the present invention will be described in detail below with reference to FIG. 1 to FIG. 4 .

The present invention provides a method for ensuring flatness of a power supply controller based on modular design, which specifically includes the following steps:

Step 1. Determine the tolerance of the matching parts between the original functional modules of the power controller;

As shown in Figure 1, one side of each functional module 10 of the power controller is provided with a boss 2, and the other side is provided with a groove 3; Platform 2 and groove 3 are matched and assembled.

Both the height of the boss and the depth of the groove of each functional module 10 are less than 2mm.

Since it is necessary to consider the tightness and reliability of the two adjacent functional modules after assembly, it is necessary to determine the tolerances of the matching assembled bosses 2 and grooves 3; and for the first original processing of each functional module of the power controller , the depth of the matched and assembled groove 3 is 0mm-0.1mm larger than the height of the boss 2. This tolerance setting can not only meet the assembly requirements between adjacent functional modules, but also control the relative displacement between adjacent functional modules as much as possible. Possibly small.

Step 2. Assemble and securely connect each original functional module 10 of the power controller, and then process the flatness of the bottom surface of the assembled power controller;

As shown in Fig. 3, a connection hole 1 is provided at the corner of each functional module 10 of the power controller; The connection holes 1 at the corresponding positions of the functional modules 10 are fastened and connected; then the flatness processing is performed on the bottom surface of the assembled power controller to ensure the flatness requirements.

Step 3, determining the tolerance of the matching parts of the replaced or expanded functional modules 4;

The structure of the replaced or expanded functional module 4 is the same as that of the original functional module 10 .

For the tolerance setting of the boss 2 and the groove 3 of the functional module 4 that is replaced or expanded, because it needs to be matched and assembled with the original functional module 10 that has been processed with the flatness of the bottom surface, and it itself has also been replaced or replaced. The possibility of expansion, combined with the limitation that the height of the boss and the depth of the groove are less than 2mm, therefore, the depth of the groove 3 of the replaced or expanded functional module 4 is 0.1mm to 0.2mm larger than the groove 3 of the original functional module 10, The height of the boss 2 of the replaced or expanded functional module 4 is 0.1 mm to 0.2 mm smaller than the boss 2 of the original functional module 10 .

For the increase in the number of replacement or expansion of functional modules at the same position, the depth of the groove of the newly replaced or expanded functional module increases by 0.1mm, and the height of the boss of the newly replaced or expanded functional module decreases by 0.1mm for each replacement or expansion .

Step 4. Set the replaced or expanded functional modules according to the assembly sequence, reassemble each functional module of the power controller, and make it meet the flatness requirements;

As shown in Figure 4, the replaced or expanded functional modules 4 and the rest of the original functional modules 10 are arranged according to the assembly sequence, and placed on the platform 6 for flatness adjustment; between the adjusted functional modules that meet the flatness requirements The fastening connection is carried out by connecting the tie rod 5 , and the relative positions between the functional modules are constantly adjusted during the fastening process, so that the finally assembled power controller meets the flatness requirement.

The method for ensuring flatness of the power supply controller based on the modular design provided by the present invention does not need to be assembled with the functional modules of the original power supply controller for an overall flatness processing for the replaced or expanded functional modules, reducing the The possibility of out-of-tolerance and contamination of the power controller is eliminated. At the same time, for functional modules made of materials that are not easy to be processed repeatedly, such as magnesium alloy, the flatness after assembly can also be guaranteed by this method, thereby ensuring uniform force on the installation of the power controller and reliable heat dissipation on the bottom surface.

At present, the method of the present invention has been used to ensure the flatness of the power controller of the lunar probe during the assembly process, and the flatness of the product still meets the requirements and reaches the standard after various tests such as mechanics and heat.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. Various modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the above disclosure. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims (9)

1. the power-supply controller of electric flatness ensuring method based on modularized design is characterized in that, comprises following steps:

Step 1, determine between each original-pack functional module of power-supply controller of electric the mutually tolerance of compatible portion;

Step 2, with each original-pack functional module assembly unit of power-supply controller of electric and be fastenedly connected, again flatness processing is carried out in the bottom surface of the power-supply controller of electric after the assembly unit;

The tolerance of step 3, definite mutual compatible portion of functional module of replacing or expanding;

Step 4, the functional module that will replace or expand be according to the assemble sequence setting, each functional module of assembly unit power-supply controller of electric again, and make it satisfy the flatness requirement.

2. the power-supply controller of electric flatness ensuring method based on modularized design as claimed in claim 1, it is characterized in that, one side of the functional module of the original-pack functional module of each of power-supply controller of electric and each replacement or expansion is provided with boss, opposite side is provided with groove, between adjacent two functional modules by the assembly unit that is complementary of boss and groove.

3. the power-supply controller of electric flatness ensuring method based on modularized design as claimed in claim 2 is characterized in that, the boss height of the functional module of the original-pack functional module of each of power-supply controller of electric and each replacement or expansion and depth of groove are all less than 2mm.

4. the power-supply controller of electric flatness ensuring method based on modularized design as claimed in claim 3 is characterized in that, the corner positions of the functional module of the original-pack functional module of each of power-supply controller of electric and each replacement or expansion is provided with connecting hole.

5. the power-supply controller of electric flatness ensuring method based on modularized design as claimed in claim 3 is characterized in that, in the step 1, for each original-pack functional module of power-supply controller of electric, the depth of groove of the assembly unit that is complementary is than the large 0mm～0.1mm of boss height.

6. the power-supply controller of electric flatness ensuring method based on modularized design as claimed in claim 4, it is characterized in that, in the step 2, for according to each good original-pack functional module of assemble sequence assembly unit, adopt cylinder lever connecting rod pass each original-pack functional module the corresponding position connecting hole and be fastenedly connected.

7. the power-supply controller of electric flatness ensuring method based on modularized design as claimed in claim 4 is characterized in that, in the step 3, and the large 0.1mm～0.2mm of depth of groove of the original-pack functional module of depth ratio of the groove of the functional module of replacement or expansion; The boss height of the functional module of replacing or expanding is than the little 0.1mm～0.2mm of boss height of original-pack functional module.

8. the power-supply controller of electric flatness ensuring method based on modularized design as claimed in claim 7, it is characterized in that, replace or expand the increase of number of times for the functional module of same position, every replacement or expansion are once, the depth of groove of new replacement or the functional module of expansion increases progressively 0.1mm, the boss height of new replacement or the functional module of the expansion 0.1mm that successively decreases.

9. such as claim 7 or 8 described power-supply controller of electric flatness ensuring methods based on modularized design, it is characterized in that, in the step 4, specifically comprise following steps:

Step 4.1, for according to the good replacement of assemble sequence assembly unit or functional module and all the other original-pack functional modules of expansion, be placed on the adjustment of the enterprising parallel planes degree of platform;

Step 4.2, satisfy after will adjusting between each functional module that flatness requires and be fastenedly connected by cylinder lever connecting rod, constantly adjust the relative position between each functional module in fastening process, the power-supply controller of electric that final assembly unit is finished satisfies the flatness requirement.

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