Preparation method of stainless steel shell of distribution box

Abstract

The invention discloses a preparation method of a stainless steel shell of a distribution box, and relates to the technical field of preparation of shells of distribution boxes, and the preparation method comprises the following steps: S1, processing and forming the structure of the shell; s2, the stainless steel plate is welded through a welding technology; s3, carrying out surface treatment on the plate, and assembling to generate the stainless steel shell of the distribution box; and S4, finished product inspection, testing and packaging. The left side plate, the right side plate and the original rain cover are made into a whole through the deep drawing process of a press machine to form the louver, the attractiveness and the sealing performance are improved, the outer-side louver is positively installed, the lining louver is inversely installed, the sealing performance of the lining louver is guaranteed, water is splashed to the lining louver through the outer-side louver and flows to the bottom, and therefore the rain cover is prevented from being damaged. And finally, the rainwater flows out of the box body through the bottommost shutter of the outside shutters, so that the rainwater can be blocked under the condition that the heat dissipation performance of the distribution box is not influenced, and the rainwater is prevented from being splashed onto electronic components in the distribution box.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of a distribution box shell, and in particular to a method for preparing a stainless steel shell of a distribution box. Background Art

[0002] The distribution box is a low-voltage power distribution device that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a shield according to the electrical wiring requirements. The outer shell of the distribution box protects the internal operating devices. Since the traditional distribution box outer shell does not have the function of heat dissipation, most manufacturers currently directly open shutters on the left and right side panels of the outdoor integrated distribution box. Although heat dissipation can be achieved, on rainy days, rainwater will splash onto the electronic components in the distribution box, which is easy to damage the components. Therefore, a preparation method is urgently needed to prepare the stainless steel outer shell of the distribution box.

[0003] The existing technology has the following problems:

[0004] In order to solve the above problems, a rain cover is subsequently added to the outside of the distribution box casing. Although the rain cover can prevent some water splashing onto components, it cannot completely block it. The addition of the rain cover will have a certain impact on the heat dissipation performance of the distribution box, and the rain cover must be puttyed around to improve its sealing and aesthetics. The production process is poor, and the manufacturing process of the traditional distribution box casing is relatively complicated. Because the distribution box casing is placed outdoors, some small insects crawl into the distribution box body through the blinds during use, resulting in the risk of equipment short circuit and insufficient safety. The electrical equipment in the existing distribution box generally uses an internal power supply, which increases energy loss. Summary of the invention

[0005] The present invention provides a method for preparing a stainless steel shell of a distribution box to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A method for preparing a stainless steel shell of a distribution box, the method comprising the following steps:

[0008] S1: Structural processing and forming of the shell;

[0009] S2: Welding of stainless steel plates using welding technology;

[0010] S3: Surface treatment of the plates and assembly to form a stainless steel shell of the distribution box;

[0011] S4: Finished product inspection, testing and packaging,

[0012] During the processing and forming of the stainless steel plate, a press machine deep drawing process is used to integrate the left and right side panels of the distribution box with the original rain cover to form a shutter, which includes an outer shutter and an inner lining shutter.

[0013] Preferably, the S1 comprises the following steps:

[0014] S11. Material preparation: Select 304 stainless steel as the preparation material of the stainless steel shell;

[0015] S12. Cutting: Use a laser cutting machine or a water jet cutting machine to cut the stainless steel sheet into the required shape and size to form the basic shape of the distribution box;

[0016] S13, stamping: punching holes on stainless steel plates using a stamping machine;

[0017] S14, Bending: Use a bending machine to bend the plate to form the basic structure of the distribution box.

[0018] Preferably, a mosquito net is welded on the inner side of the lining shutter.

[0019] Preferably, the outer shutters are installed upright, and the inner lining shutters are installed inverted.

[0020] Preferably, S2 includes: welding the bent plate by TIG welding or MIG welding to form a box structure, and the welding temperature needs to be strictly controlled to be 3600-6000°C during the welding process, wherein a layer of mosquito net is first welded on the side of the inner lining shutter facing the outer shutter, and then the inner lining shutter is butt-welded to the outer shutters on the left and right side panels, and then the welded outer shell is heat treated, and the welding parts are polished to remove welding slag and burrs.

[0021] Preferably, S3 includes: performing necessary surface treatment on the polished plate, including pickling, polishing, spraying or electroplating, and assembling various components of the distribution box to form a complete distribution box housing body.

[0022] Preferably, a solar cell panel is provided on the upper surface of the outer shell body of the distribution box.

[0023] Preferably, the outer shell body of the distribution box is packaged with shockproof, moisture-proof and corrosion-resistant materials.

[0024] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0025] 1. The present invention provides a method for preparing a stainless steel shell of a distribution box, wherein the left and right side panels are integrated with the original rain cover by a press drawing process to form shutters, thereby improving the aesthetics and sealing performance; the outer shutters are installed upright, and the inner lining shutters are installed in an inverted manner to ensure the sealing performance of the inner lining shutters; water splashes onto the inner lining shutters through the outer shutters, flows to the bottom, and finally flows out of the box through the bottom shutter of the outer shutters; rainwater can be blocked without affecting the heat dissipation performance of the distribution box, and rainwater can be prevented from splashing onto the electronic components in the distribution box, and the production processability is good.

[0026] 2. The present invention provides a method for preparing a stainless steel shell of a distribution box. By welding a layer of mosquito-proof net on the side of the inner lining shutter facing the outer shutter, small insects can be prevented from crawling into the distribution box through the shutter to cause the risk of equipment short circuit, thereby improving safety and having a certain dust-proof effect.

[0027] 3. The present invention provides a method for preparing a stainless steel shell of a distribution box. By installing a solar cell panel on the top of the distribution box shell body, the lighting circuit inside the entire stainless steel shell of the distribution box can be powered without connecting an additional power supply, thereby greatly reducing energy loss.

[0028] 4. The present invention provides a method for preparing a stainless steel shell of a distribution box. Through the operation and control of processing and forming, welding, surface treatment, assembly, finished product inspection, testing and packaging, a high-quality and high-performance stainless steel shell of a distribution box can be prepared to ensure that the quality and performance of the product meet customer needs and industry standards. The manufacturing process is simple, which is conducive to the production and processing of the stainless steel shell of the distribution box. Shockproof, moisture-proof and corrosion-resistant materials are used to package the finished stainless steel shell of the distribution box to ensure the safety and stability of the shell during transportation and prevent the shell from being damaged during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the stainless steel housing of the distribution box of the present invention;

[0030] Figure 2 It is a partial cross-sectional schematic diagram of the stainless steel shell of the distribution box of the present invention;

[0031] Figure 3 It is a schematic diagram of the enlarged structure of point A of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the integrated shutter of the present invention;

[0033] Figure 5 A flow chart of the preparation process of the stainless steel shell of the distribution box of the present invention;

[0034] Figure 6It is a process flow chart of the processing and forming of the present invention.

[0035] In the figure: 1. the outer shell of the distribution box; 2. the shutters; 21. the outer shutters; 22. the inner shutters; 23. the mosquito net; 3. the solar panel. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] like Figure 1-Figure 6 As shown, a method for preparing a stainless steel shell of a distribution box comprises the following steps:

[0038] S1: Structural processing and forming of the shell;

[0039] S2: Welding of stainless steel plates using welding technology;

[0040] S3: Surface treatment of the plates and assembly to form a stainless steel shell of the distribution box;

[0041] S4: Finished product inspection, testing and packaging,

[0042] During the processing and forming of the stainless steel plate, a press machine deep drawing process is used to integrate the left and right side panels of the distribution box with the original rain cover to form a shutter 2, which includes an outer shutter 21 and an inner lining shutter 22.

[0043] The left and right side panels are made into one piece with the original rain cover by a press drawing process to form a shutter 2, which improves the aesthetics and sealing performance and has good production processability. The shutter 2 includes an outer shutter 21 and an inner lining shutter 22. Water passes through the outer shutter 21, splashes onto the inner lining shutter 22, flows to the bottom, and flows out of the box body through the bottom shutter of the outer shutter 21. It can block rainwater without affecting the heat dissipation performance of the distribution box, preventing rainwater from splashing onto the electronic components in the distribution box.

[0044] Through the operation and control of the steps of processing, forming, welding, surface treatment, assembly, finished product inspection, testing and packaging, high-quality and high-performance stainless steel shell of the distribution box can be prepared to ensure that the quality and performance of the product meet customer needs and industry standards. The manufacturing process is simple, which is conducive to the production and processing of the stainless steel shell of the distribution box, and the production processability is good. The left and right side panels are made into one with the original rain cover by a press drawing process to form a shutter 2. The production processability is good and the aesthetics of the distribution box shell is improved.

[0045] like Figure 6 As shown, S1 includes the following steps:

[0046] S11. Material preparation: Select 304 stainless steel as the preparation material of the stainless steel shell;

[0047] S12. Cutting: Use a laser cutting machine or a water jet cutting machine to cut the stainless steel sheet into the required shape and size to form the basic shape of the distribution box;

[0048] S13, stamping: punching holes on stainless steel plates using a stamping machine;

[0049] S14, Bending: Use a bending machine to bend the plate to form the basic structure of the distribution box.

[0050] like Figure 1-Figure 4 As shown, a mosquito-proof net 23 is welded to the inner side of the lining shutter 22 .

[0051] By providing the anti-mosquito net 23, small insects can be prevented from crawling into the distribution box through the blinds to cause the risk of equipment short circuit, thereby improving safety and having a certain dust-proof effect.

[0052] like Figure 1-Figure 4 As shown, the outer louver 21 is installed upright and the inner lining louver 22 is installed inverted, and S2 includes: the bent plate is welded by TIG welding or MIG welding to form a box structure, and the welding temperature needs to be strictly controlled to be 3600-6000°C during the welding process, wherein a layer of mosquito net 23 is first welded on the side of the inner lining louver 22 facing the outer louver 21, and then the inner lining louver 22 is butt-welded to the outer louver 21 on the left and right side panels, and then the welded shell is heat treated, and the welding parts are polished to remove welding slag and burrs.

[0053] First, weld a layer of mosquito net 23 on the inner lining shutter 22, and then use the butt welding process to connect it with the left and right side panels to ensure the sealing of the inner lining shutter 22. Water passes through the outer shutter 21, splashes onto the inner lining shutter 22, flows to the bottom, and flows out of the box through the bottom shutter of the outer shutter 21. It can block rainwater without affecting the heat dissipation performance of the distribution box, preventing rainwater from splashing onto the electronic components in the distribution box. The welding temperature and welding process must be strictly controlled during the welding process to prevent deformation or damage of the stainless steel plate. Use a special grinding wheel or polishing wheel to grind the welding parts of the shell to remove welding slag and burrs on the surface of the shell to ensure a smooth surface of the shell.

[0054] S3 includes: performing necessary surface treatment on the polished plate, including pickling, polishing, spraying or electroplating, and assembling the various components of the distribution box, including doors, sealing strips, hinges, etc., installing sealing strips or sealants to ensure that the box meets the three protection requirements, namely waterproof, dustproof and anti-corrosion, thereby forming a complete distribution box shell body 1, and then printing the necessary identification information on the surface of the shell through processes such as screen printing: model, rated voltage, manufacturer, etc.

[0055] The oxide layer and dirt on the shell surface are removed by pickling to improve the corrosion resistance of the shell. Minor scratches are removed by polishing to ensure that there are no obvious sand holes, deep scratches and other rough surfaces on the shell surface, thereby improving the appearance quality of the shell. The corrosion resistance and aesthetics of the stainless steel shell are further improved by spraying or electroplating, thereby enhancing the corrosion resistance, aesthetics and wear resistance of the shell.

[0056] A solar cell panel 3 is arranged on the upper surface of the housing body 1 of the distribution box.

[0057] By installing a solar cell panel 3 on the top of the distribution box housing body 1, the lighting circuit inside the entire stainless steel housing of the distribution box can be powered without connecting an additional power source, which greatly reduces energy loss.

[0058] The distribution box housing body 1 is packaged with shockproof, moisture-proof and corrosion-resistant materials.

[0059] By selecting shockproof, moisture-proof and corrosion-resistant materials to package the finished distribution box stainless steel shell, the safety and stability of the shell during transportation are ensured to prevent the shell from being damaged during transportation.

[0060] The working principle of the present invention is as follows: 304 stainless steel is selected as the preparation material of the stainless steel shell, a laser cutting machine or a water jet cutting machine is used to cut the stainless steel plate into the required shape and size to form the basic shape of the distribution box, a punching machine is used to punch holes on the stainless steel plate, and a press machine deep drawing process is used to make the left and right side panels of the distribution box and the original rain cover into one piece, so as to form a shutter 2, thereby improving the aesthetics of the distribution box shell. The shutter is divided into an outer shutter 21 and an inner lining shutter 22. A bending machine is used to bend the plate to form the basic structure of the distribution box, and a TIG welding or MIG welding process is used to weld the bent plate to form a box structure. During the welding process, the welding temperature must be strictly controlled to be 3600-6000. 0℃, where the outer louver 21 is installed upright and the inner lining louver 22 is installed in reverse. First, a mosquito net 23 is welded on the side of the inner lining louver 22 facing the outer louver 21, and then the inner lining louver 22 is connected to the outer louver 21 on the left and right side panels by butt welding to ensure the sealing of the inner lining louver 22. Water passes through the outer louver 21, splashes onto the inner lining louver 22, flows to the bottom, and flows out of the box through the bottom louver of the outer louver 21. It can block rainwater without affecting the heat dissipation performance of the distribution box, and prevent rainwater from splashing onto the electronic components in the distribution box. The welding temperature and welding process must be strictly controlled during the welding process to prevent the stainless steel plate from being deformed or damaged. The shell after welding is Heat treatment is performed, and the welding parts of the shell are grinded with a special grinding wheel or polishing wheel to remove welding slag and burrs on the surface of the shell to ensure that the surface of the shell is smooth. The polished plate is pickled, polished, sprayed or electroplated to enhance the corrosion resistance, aesthetics and wear resistance of the shell. By assembling the various components of the distribution box, including doors, sealing strips, hinges, etc., and installing sealing strips or sealants, it is ensured that the box meets the requirements of three protections, namely waterproof, dustproof and corrosion-resistant. Finally, a solar cell panel 3 is installed on the top of the distribution box shell body 1 to power the circuit of the electrical appliances inside the entire stainless steel shell of the distribution box. There is no need to connect an additional power supply, which greatly reduces energy loss. The necessary logos are printed on the surface of the shell through processes such as screen printing. Information, such as model, rated voltage, manufacturer, etc., and then test the sealing effect of the box to ensure that the protective performance of the shell meets the standards. At the same time, conduct electrical function and protective performance tests to ensure that the distribution box can work normally. Conduct a comprehensive inspection of the finished product, including dimensional accuracy, welding quality, and surface treatment effects to ensure that the shell has no scratches, dents and other defects. Sampling is carried out for destructive testing to evaluate the strength and durability of the shell. The stainless steel shell of the distribution box is packaged with shockproof, moisture-proof and corrosion-resistant materials, and the product model, specifications, production date and precautions are marked. Through the above steps, high-quality and high-performance stainless steel shells of distribution boxes can be prepared to ensure that the quality and performance of the products meet customer needs and industry standards. The manufacturing process is simple.It is conducive to the production and processing of stainless steel shells of distribution boxes, and has good production processability.

[0061] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A method for preparing a stainless steel shell of a distribution box, characterized in that: The preparation method comprises the following steps: S1: Structural processing and forming of the shell; S2: Welding of stainless steel plates using welding technology; S3: Surface treatment of the plates and assembly to form a stainless steel shell of the distribution box; S4: Finished product inspection, testing and packaging, During the processing and forming of the stainless steel plate, a press machine deep drawing process is used to integrate the left and right side plates of the distribution box with the original rain cover to form a shutter (2), which includes an outer shutter (21) and an inner lining shutter (22).

2. The method for preparing a stainless steel shell of a distribution box according to claim 1, characterized in that: The S1 comprises the following steps: S11. Material preparation: Select 304 stainless steel as the preparation material of the stainless steel shell; S12. Cutting: Use a laser cutting machine or a water jet cutting machine to cut the stainless steel sheet into the required shape and size to form the basic shape of the distribution box; S13, stamping: punching holes on stainless steel plates using a stamping machine; S14, Bending: Use a bending machine to bend the plate to form the basic structure of the distribution box.

3. The method for preparing a stainless steel shell of a distribution box according to claim 2, characterized in that: A mosquito-proof net (23) is welded to the inner side of the lining shutter (22).

4. The method for preparing a stainless steel shell of a distribution box according to claim 3, characterized in that: The outer louver (21) is installed upright, and the inner lining louver (22) is installed inverted.

5. The method for preparing a stainless steel shell of a distribution box according to claim 4, characterized in that: The S2 comprises: welding the bent plate by TIG welding or MIG welding to form a box structure, wherein the welding temperature needs to be strictly controlled to be 3600-6000° C., wherein a layer of mosquito net (23) is firstly welded on the side of the inner lining louver (22) facing the outer louver (21), and then the inner lining louver (22) is butt-welded to the outer louver (21) on the left and right side panels, and then the outer shell is heat-treated after welding, and the welding part is polished to remove welding slag and burrs.

6. The method for preparing a stainless steel shell of a distribution box according to claim 5, characterized in that: The step S3 includes: performing necessary surface treatment on the polished plate, including pickling, polishing, spraying or electroplating, and assembling the various components of the distribution box to form a complete distribution box housing body (1).

7. The method for preparing a stainless steel shell of a distribution box according to claim 6, characterized in that: A solar cell panel (3) is provided on the upper surface of the outer shell body (1) of the distribution box.

8. The method for preparing a stainless steel shell of a distribution box according to claim 7, characterized in that: The outer shell body (1) of the distribution box is packaged with shockproof, moisture-proof and corrosion-resistant materials.

Images